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Sample records for diagnosis preliminary results

  1. {sup 18}F-FDG positron emission tomography in the early diagnosis of enterocolitis: preliminary results

    Energy Technology Data Exchange (ETDEWEB)

    Kresnik, E.; Gallowitsch, H.J.; Igerc, I.; Kumnig, G.; Gomez, I.; Lind, P. [Nuclear Medicine and Special Endocrinology, PET Centre, General Hospital, St. Veiterstrasse 47, 9020 Klagenfurt (Austria); Mikosch, P.; Alberer, D.; Hebenstreit, A. [Department of Internal Medicine and Gastroenterology, General Hospital, Klagenfurt (Austria); Wuertz, F. [Department of Pathology, General Hospital, Klagenfurt (Austria); Kogler, D.; Gasser, J. [Department of Radiology, General Hospital, Klagenfurt (Austria)

    2002-10-01

    Collagenous and eosinophilic colitis are rare diseases characterised by chronic watery diarrhoea. Radiographic evaluation of the gastrointestinal tract and colonoscopy are usually non-diagnostic since as many as one-third of patients will have minor abnormalities. To date a few investigators have reported increased fluorine-18 fluorodeoxyglucose ({sup 18}F-FDG) uptake on positron emission tomography (PET) in patients with acute enterocolitis, but there have been no reports on the use of {sup 18}F-FDG PET for the diagnosis of collagenous or eosinophilic colitis in an early clinical stage. The aim of this preliminary study was to evaluate the usefulness of {sup 18}F-FDG PET in the early diagnosis of patients with colitis. We investigated five women (mean age 61.2{+-}12.1 years) who had been diagnosed as having colitis in an early clinical stage. In all but one of the patients, the diagnosis of colitis was based on biopsy. Magnetic resonance colonography, ultrasonography and colonoscopy were performed in all but one of the patients. Two women were identified as having collagenous colitis in an early clinical stage. Another two patients had eosinophilic colitis. The morphological imaging methods, magnetic resonance colonography and ultrasonography, yielded no suspicious findings, and the results of colonoscopy similarly showed no abnormalities. One patient had colitis due to bacterial infection. In all patients {sup 18}F-FDG PET showed a pathological increase in tracer uptake in the large bowel, suggestive of colitis. In four of the five patients, colitis was confirmed by histology, and in one, by bacterial analysis. {sup 18}F-FDG PET was able to detect colitis in an early clinical stage, when morphological imaging methods and colonoscopy were non-diagnostic. The early performance of {sup 18}F-FDG PET imaging in patients with possible colitis is encouraging. (orig.)

  2. Application of a PCR method for the diagnosis of ulcerative enteritis: preliminary results

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    Fabrizio Agnoletti

    2010-01-01

    Full Text Available Ulcerative enteritis or “quail disease” is an acute clostridial infection of young birds reported in many avian species, chicken and turkey included. Clostridium colinum is the causative agent of ulcerative enteritis and because of the difficulties bound to the isolation and identification of this bacterium by means of classic bacteriological techniques, its detection appears very hard and the prevalence of this disease could be underestimated. To investigate the diffusion of C. colinum in enteric disease of birds, a recently developed PCR protocol was applied to 42 cultural broths previously inoculated with organs and intestinal samples collected from diseased subjects. PCR-positive broths were cultivated to attempt the isolation of C. colinum. Samples collected from positive birds were subjected to histological examinations. 4 birds (3 broilers chickens and 1 pigeon resulted PCR-positive and, in one case, C. colinum was isolated. Gross and histological lesions of positive birds were compatible with those described in other ulcerative enteritis outbreaks. These preliminary results demonstrates that C. colinum is sporadically implicated in enteric diseases of broiler chickens (14.2%. In addition, the PCR assay proved to be an useful and reliable instrument to support the diagnosis of ulcerative enteritis and to facilitate the isolation of C. colinum.

  3. [Early diagnosis of lung cancer in Constanţa county--preliminary results].

    Science.gov (United States)

    Tofolean, Doina; Adam, Tatiana; Alexandrescu, Luana; Suceveanu, Andra Iulia; Voinea, Fl

    2003-01-01

    Lung cancer (LC) has an increasing incidence and mortality rate in both sexes in Romania. Due to its gravity, early detection of LC (stages 0, I, II) is very important. We analyzed a group of 161 patients with LC. Early LC was present in 22% (36 patients). More than half of them were in stage II. All patients had high risk for LC: smokers, man, and age over 50. Suggestive symptomatology of early LC included: cough and its change of pattern, hemoptysis and loss of weight. In 95% of these patients radiological abnormalities were already present. Bronchoscopy (including biopsy brushing, bronchial aspiration and bronchial washing) was the main diagnostic procedure for central type LC, but was also useful in peripheral type. Sputum analysis was positive in 92% of cases. Early detection of LC needs an active diagnosis in all patients with high risk, with all available diagnostic procedures (including high resolution computed tomography).

  4. A magneto-optic route toward the in vivo diagnosis of malaria: preliminary results and preclinical trial data

    NARCIS (Netherlands)

    Newman, Dave M.; Heptinstall, John; Matelon, Raphael J.; Savage, Luke; Wears, M. Lesley; Beddow, Jamie; Cox, Martin; Schallig, Henk D. F. H.; Mens, Petra F.

    2008-01-01

    We report the development of magneto-optic technology for the rapid quantitative diagnosis of malaria that may also be realizable in a noninvasive format. Hemozoin, the waste product of malarial parasitic action on hemoglobin, is produced in a form that under the action of an applied magnetic field

  5. esophageal cancer: preliminary results

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    Afsaneh Maddah Safaei

    2017-01-01

    Full Text Available Purpose: Dysphagia is a common initial presentation in locally advanced esophageal cancer and negatively impacts patient quality of life and treatment compliance. To induce fast relief of dysphagia in patients with potentially operable esophageal cancer high-dose-rate (HDR brachytherapy was applied prior to definitive radiochemotherapy. Material and methods : In this single arm phase II clinical trial between 2013 to 2014 twenty patients with locally advanced esophageal cancer (17 squamous cell and 3 adenocarcinoma were treated with upfront 10 Gy HDR brachytherapy, followed by 50.4 Gy external beam radiotherapy (EBRT and concurrent chemotherapy with cisplatin/5-fluorouracil. Results : Tumor response, as measured by endoscopy and/or computed tomography scan, revealed complete remission in 16 and partial response in 4 patients (overall response rate 100%. Improvement of dysphagia was induced by brachytherapy within a few days and maintained up to the end of treatment in 80% of patients. No differences in either response rate or dysphagia resolution were found between squamous cell and adenocarcinoma histology. The grade 2 and 3 acute pancytopenia or bicytopenia reported in 4 patients, while sub-acute adverse effects with painful ulceration was seen in five patients, occurring after a median of 2 months. A perforation developed in one patient during the procedure of brachytherapy that resolved successfully with immediate surgery. Conclusions : Brachytherapy before EBRT was a safe and effective procedure to induce rapid and durable relief from dysphagia, especially when combined with EBRT.

  6. Preliminary results from APE-100

    International Nuclear Information System (INIS)

    Bartoloni, A.; Battista, C.; Cabasino, S.; Marzano, F.; Paolucci, P.S.; Pech, J.; Rapuano, F.; Sarno, R.; Todesco, G.M.; Torelli, M.; Tross, W.; Vicini, P.; Tripiccione, R.; Cabibbo, N.; Salina, G.; Fucci, A.; Lubicz, V.; Maiani, L.; Martinelli, G.; Vladikas, A.

    1993-01-01

    We present the preliminary results obtained on the 6 Gigaflop prototype which is the building block of the APE-100 computer. Results are presented for pseudoscalar and vector mesons for the Wilson and the improved action with a statistics of about 100 configurations. Static heavy-light meson propagator have also been studied for different smeared operators. We find that large smearing (≥ 9) are bad projectors on the lightest pseudoscalar states. (orig.)

  7. Comparison of 3D and 2D FSE T2-weighted MRI in the diagnosis of deep pelvic endometriosis: Preliminary results

    International Nuclear Information System (INIS)

    Bazot, M.; Stivalet, A.; Daraï, E.; Coudray, C.; Thomassin-Naggara, I.; Poncelet, E.

    2013-01-01

    Aim: To evaluate image quality and diagnostic accuracy of two- (2D) and three-dimensional (3D) T2-weighted magnetic resonance imaging (MRI) for the evaluation of deep infiltrating endometriosis (DIE). Materials and methods: One hundred and ten consecutive patients with suspicion of endometriosis were recruited at two institutions over a 5-month period. Twenty-three women underwent surgery, 18 had DIE at histology. Two readers independently evaluated 3D and 2D MRI for image quality and diagnosis of DIE. Descriptive analysis, chi-square test for categorical or nominal variables, McNemar test for comparison between 3D and 2D T2-weighted MRI, and weighted “statistics” for intra- and interobserver agreement were used for statistical analysis. Results: Both readers found that 3D yielded significantly lower image quality than 2D MRI (p < 0.0001). Acquisition time for 3D was significantly shorter than 2D MRI (p < 0.01). 3D offered similar accuracy to diagnose DIE compared to 2D MRI. For all locations of endometriosis, a high or variable intra-observer agreement was observed for reader 1 and 2, respectively. Conclusions: Despite a lower overall image quality, 3D provides significant time saving and similar accuracy than multiplanar 2D MRI in the diagnosis of specific DIE locations.

  8. Role of third party payers in addressing the financial impact of breast cancer diagnosis on Malaysian patients: Preliminary results from a focus group study

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    Nanthini Thevi Bhoo-Pathy

    2017-12-01

    Full Text Available Background: The role of third party payers in alleviating financial burden following breast cancer diagnosis remains poorly understood in low and middle income settings. We aim to gain an in-depth understanding on the role of third party payers in addressing the financial impact of breast cancer diagnosis on Malaysian patients. Methods: Breast cancer patients aged 35–67 years from various economic backgrounds in Hospital Kuala Lumpur and University Malaya Medical Centre participated in this qualitative study. To date, 6 focus group discussions (FGDs have been conducted in English, Malay, Mandarin and Tamil languages. All FGDs were audio recorded and transcribed verbatim. Results: More than half of the patients were supported by employer provided health insurance while few had private health insurance. A majority were unaware of their coverage plans until after cancer diagnosis and regretted not understanding their benefits beforehand. Most of the insurance packages require patients to pay first and claim later, which served as a huge financial hurdle. Furthermore, many reported that the insurance claim process was lengthy and tedious. While some patients stated that they were fully satisfied with their coverage plan and grateful that they were covered by third party payers, some patients expressed dissatisfaction with their coverage plans due to the hidden clauses that limit their claims. Besides that, employed patients were upset with the Social Security Organization (SOCSO, citing a lack of transparency in outlining the eligibility to receive invalidity benefits and unacceptable behavior of its front-line staff.  The main reasons given for not having a private health insurance was the unaffordable premium rates and low awareness on existing medical coverage plans. Conclusions: While third party payers may play an important role in reducing the financial burden faced by breast cancer patients, there is a need to improve insurance regulation

  9. Nutritional status at diagnosis in children and adolescents with cancer in the Asociacion de Hemato-Oncologia Pediatrica de Centro America (AHOPCA) countries: preliminary results from Guatemala.

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    Sala, Alessandra; Rossi, Emanuela; Antillon, Federico

    2008-02-01

    More than 50% of children with cancer in Guatemala have some degree of malnutrition at diagnosis. In particular, the proportions of patients with non-lymphoblastic leukemias and myelodysplasia (MDS) with moderate and severe malnutrition were 73% and 9% respectively; higher than that in the population with acute lymphoblastic leukemia (ALL), P = 0.0493. There was no relationship of nutritional status to gender. Children with ALL and other leukemias + MDS who had severe malnutrition were significantly younger than such malnourished children with solid tumors (P = 0.0003). The relationship of malnutrition to race was mixed, perhaps reflecting the frequent difficulty of accurately categorizing race. (c) 2007 Wiley-Liss, Inc.

  10. World strength map: preliminary results

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    Tesauro, Magdala; Kaban, Mikhail K.; Cloetingh, Sierd A. P. L.; Mooney, Walter

    2010-05-01

    Rheology and strength of the Earth's lithosphere have been debated since the beginning of the last century, when the concept of a strong lithosphere overlying viscous asthenosphere was introduced. The issue of strength of the lithospheric plates and their spatial and temporal variations is important for many geodynamic applications. For rocks with given mineralogical composition and microstructure, temperature is one of the most important parameters controlling rheology. We present the first world strength map obtained from global thermal and crustal models. Temperature estimates for the deeper horizons of the lithosphere, where the heat transport is mostly conductive, requires a precise knowledge of many crustal parameters (mainly thermal conductivity and heat production), which are extremely uncertain. Therefore, we use a combination of indirect approaches, such as seismic tomography and geothermal analysis. Furthermore, we implement a global crustal model on the base of previous compilations. Lithology of the upper and lower crust was classified based on tectonic maps of the World in agreement with the previous study of Tesauro et al. (2009). The results show a good correspondence between strength values and geological features. We observe some general tendency for old cratons and areas affected by the Tertiary volcanism, characterized by high and low strength values, respectively. At the same time, relevant differences in the strength distribution between similar structures are found.

  11. Cyclonic valve test: preliminary results

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    Monteiro, Andre Sampaio; Moraes, Carlos Alberto C.; Marins, Luiz Philipe M.; Soares, Fabricio; Oliveira, Dennis; Lima, Fabio Soares de; Airao, Vinicius [Petroleo Brasileiro S.A. (PETROBRAS), Rio de Janeiro, RJ (Brazil); Ton, Tijmen [Twister BV, Rijswijk (Netherlands)

    2012-07-01

    For many years, the petroleum industry has been developing a valve that input less shear to the flow for a given required pressure drop and this can be done using the cyclonic concept. This paper presents a comparison between the performances of a cyclonic valve (low shear) and a conventional globe valve. The aim of this work is to show the advantages of using a cyclonic low shear valve instead of the commonly used in the primary separation process by PETROBRAS. Tests were performed at PETROBRAS Experimental Center (NUEX) in Aracaju/SE varying some parameters: water cut; pressure loss (from 4 kgf/cm2 to 10 kgf/cm2); flow rates (30 m3/h and 45 m3/h). Results indicates a better performance of the cyclonic valve, if compared with a conventional one, and also that the difference of the performance, is a function of several parameters (emulsion stability, water content free, and oil properties). The cyclonic valve tested can be applied as a choke valve, as a valve between separation stages (for pressure drop), or for controlling the level of vessels. We must emphasize the importance to avoid the high shear imposed by conventional valves, because once the emulsion is created, it becomes more difficult to break it. New tests are being planned to occur in 2012, but PETROBRAS is also analyzing real cases where the applications could increase the primary process efficiency. In the same way, the future installations are also being designed considering the cyclonic valve usage. (author)

  12. Rare earth optogalvanic spectroscopy: preliminary results

    Energy Technology Data Exchange (ETDEWEB)

    Destro, Marcelo G.; Neri, Jose W.; Rodrigues, Nicolau A.S.; Silveira, Carlos A.B.; Riva, Rudimar [Instituto de Estudos Avancados (IEAv/EFO), Sao Jose dos Campos, SP (Brazil). Div. de Fotonica]. E-mail: destro@ieav.cta.br; Victor, Alessandro R. [Instituto Tecnologico de Aeronautica (ITA), Sao Jose dos Campos, SP (Brazil)

    2008-07-01

    The IEAv has special interest in the studies of rare earth isotope applications in laser medium and integrated optics as well as aerospace research. We are starting to work with Ytterbium, Erbium, Dysprosium and Neodymium laser selective photoionization research. This paper describes the preliminary results of emission and optogalvanic spectroscopy obtained from a Neodymium hollow cathode lamps. Furthermore these results were used to setup our laser systems to work to leads a Nd isotopes selective laser photoionization. (author)

  13. Preliminary results from NOAMP deep drifting floats

    International Nuclear Information System (INIS)

    Ollitrault, M.

    1989-01-01

    This paper is a very brief and preliminary outline of first results obtained with deep SOFAR floats in the NOAMP area. The work is now going toward more precise statistical estimations of mean and variable currents, together with better tracking to resolve submesoscales and estimate diffusivities due to mesoscale and smaller scale motions. However the preliminary results confirm that the NOAMP region (and surroundings) has a deep mesoscale eddy field that is considerably more energetic that the mean field (r.m.s. velocities are of order 5 cm s -1 ), although both values are diminished compared to the western basin. A data report containing trajectories and statistics is scheduled to be published by IFREMER in the near future. The project main task is to especially study the dispersion of radioactive substances

  14. [Ethnic entrepreneurship in Montreal: some preliminary results].

    Science.gov (United States)

    Juteau, D; Daviau-guay, J; Moallem, M

    1992-01-01

    "This research note presents a first sketch of a study we are undertaking on ethnic entrepreneurship [in Montreal]. It details first of all our theoretical framework and then presents some preliminary results. For this research, we are studying various ethnic groups, those in the majority as well as the minority. For each of them, we will analyze the impact that immigration status, sex, the industrial sector and urban context play on entrepreneurial activity." (SUMMARY IN ENG AND SPA) excerpt

  15. Preliminary results of ground-motion characteristics

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    Francesca Bozzoni

    2012-10-01

    Full Text Available The preliminary results are presented herein for the engineering applications of the characteristics of the ground motion induced by the May 20, 2012, Emilia earthquake. Shake maps are computed to provide estimates of the spatial distribution of the induced ground motion. The signals recorded at the Mirandola (MRN station, the closest to the epicenter, have been processed to obtain acceleration, velocity and displacement response spectra. Ground-motion parameters from the MRN recordings are compared with the corresponding estimates from recent ground-motion prediction equations, and with the spectra prescribed by the current Italian Building Code for different return periods. The records from the MRN station are used to plot the particle orbit (hodogram described by the waveform. The availability of results from geotechnical field tests that were performed at a few sites in the Municipality of Mirandola prior to this earthquake of May 2012 has allowed preliminary assessment of the ground response. The amplification effects at Mirandola are estimated using fully stochastic site-response analyses. The seismic input comprises seven actual records that are compatible with the Italian code-based spectrum that refers to a 475-year return period. The computed acceleration response spectrum and the associated dispersion are compared to the spectra calculated from the recordings of the MRN station. Good agreement is obtained for periods up to 1 s, especially for the peak ground acceleration. For the other periods, the spectral acceleration of the MRN recordings exceeds that of the computed spectra.

  16. Breakthrough Propulsion Physics Workshop Preliminary Results

    Science.gov (United States)

    Millis, Marc G.

    1997-01-01

    In August, 1997, a NASA workshop was held to assess the prospects emerging from physics that might lead to creating the ultimate breakthroughs in space transportation: propulsion that requires no propellant mass, attaining the maximum transit speeds physically possible, and breakthrough methods of energy production to power such devices. Because these propulsion goals are presumably far from fruition, a special emphasis was to identify affordable, near-term, and credible research that could make measurable progress toward these propulsion goals. Experiments and theories were discussed regarding the coupling of gravity and electromagnetism, vacuum fluctuation energy, warp drives and wormholes, and superluminal quantum tunneling. Preliminary results of this workshop are presented, along with the status of the Breakthrough Propulsion Physics program that conducted this workshop.

  17. Global Geologic Mapping of Io: Preliminary Results

    Science.gov (United States)

    Williams, David A.; Keszthelyi, L. P.; Crown, D. A.; Geissler, P. E.; Schenk, P. M.; Yff, Jessica; Jaeger, W. L.; Rathbun, J. A.

    2008-01-01

    A new global geologic map of Jupiter's volcanic moon, Io is being prepared, with the focus being on completion of a draft map by July 2008. Here initial results of the mapping are reported: a preliminary distribution of material units in terms of areas and a visual representation. Additionally, the mapping hopes to address some of the problems in Io geology. Thus far it has been discovered that Io's surface is dominated by plains material, thought to consist of Io's silicate crust covered by pyroclastic deposits and lava flows of silicate and sulfur-bearing composition. Many plains areas contain flow fields that cannot be mapped separately due to a lack of resolution or modification by alteration processes. Discrete lava flows and flow fields are the next most abundant unit, with bright (sulfur?) flows in greater abundance than dark (silicate?) flows. The source of most of Io's heat flow, the paterae, are the least abundant unit in terms of areal extent.Upon completion of the draft map for peer review, it will be used to investigate several specific questions about the geological evolution of Io that previously could not be well addressed, including: comparison of the areas versus the heights of Ionian mountains to assess their stability and evolution; correlation and comparison of Galileo Near-Infrared Mapping Spectrometer and Photopolarimeter-Radiometer hot spot locations with the mapped location of dark versus bright lava flows and patera floors to assess any variations in the types of sources for Io's active volcanism; and the creation of a global inventory of the areal coverage of dark and bright laval flows to assess the relative importance of sulfur versus silicate volcanism in resurfacing Io, and to assess whether there are regional concentrations of either style of volcanism that may have implications on interior processes.

  18. Archaeogeophysical investigations in Tiwanaku: preliminary results

    Science.gov (United States)

    Masini, Nicola; Sileo, Maria; Lasaponara, Rosa; Leucci, Giovanni; Orefici, Giuseppe; Rizzo, Enzo

    2017-04-01

    -1450) Tiwanaku was characterized by the resurgence of regional identities and polities In spite of the rich archaeological record numerous issues, related to the function and the extension of Tiwanaku, need to be investigated especially in the monumental core which includes the pyramid of Akapana, and other ceremonial places such Kalasasaya, Putuni and Kantatallita. To this aims some geophysical investigations were performed in 2009 and 2014 in the context of multidisciplinary research including the use of satellite remote sensing [8]. This paper deals with the discussion of preliminary results of geomagnetic and GPR investigations, some of which have been verified by trial archaeological excavations which have unearthed some buried structures, improving the knowledge of the ceremonial areas of Tiwanaku. References [1] Lasaponara R., Leucci G., Masini N., Persico R., Scardozzi G., Towards an operative use of remote sensing for exploring the past using satellite data: The case study of Hierapolis (Turkey), Remote sensing of Environment, 174 (2016) : 148-164, doi:10.1016/j.rse.2015.12.016 [2] Masini N., Lasaponara R., Rizzo E., Orefici G. 2012. Integrated Remote Sensing Approach in Cahuachi (Peru): Studies and Results of the ITACA Mission (2007-2010), In: Lasaponara R., Masini N. (Eds) 2012, Satellite Remote Sensing: a new tool for Archaeology, Springer, Verlag Berlin Heidelberg, ISBN 978-90-481-8800-0, doi: 10.1007/978-90-481-8801-7_14; pp. 307-344 [3] Rizzo E., Masini N., Lasaponara R., Orefici G. 2010, ArchaeoGeophysical methods in the Templo del Escalonado (Cahuachi, Nasca, Perù), Near Surface Geophysics 8 (5), 433-439, doi:10.3997/1873-0604.2010030 [4] Masini N., Rizzo E., Lasaponara R., and Orefici G. 2008, Integrated remote sensing techniques for the detection of buried archaeological adobe structures: preliminary results in Cahuachi (Peru), Advances in Geosciences, 19, 75-82 [5] Lasaponara R., Leucci G., Masini N., Persico R. 2014. Investigating archaeological looting

  19. Polymerase chain reaction in the diagnosis of tuberculous meningitis: preliminary report

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    L.R. Machado

    1994-09-01

    Full Text Available In this preliminary report the results of PCR for detection of DNA sequences (65 KDa antigen of Mycobacterium tuberculosis in CSF samples from 20 patients are registered. In 10 patients there were clinical and laboratory findings suggesting the diagnosis of tuberculous meningitis (test group. In the other 10 patients, clinical and laboratory findings suggested meningitis or meningo-encephalitis from other etiologies (control group. In 7 patients from the test group antigenic DNA sequences of Mycobacterium tuberculosis were found in CSF by PCR; positive results were not registered in the control group.

  20. Compilation of a preliminary checklist for the differential diagnosis of neurogenic stuttering

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    Mariska Lundie

    2014-06-01

    Objectives: The aim of this study was to describe and highlight the characteristics of NS in order to compile a preliminary checklist for accurate diagnosis and intervention. Method: An explorative, applied mixed method, multiple case study research design was followed. Purposive sampling was used to select four participants. A comprehensive assessment battery was compiled for data collection. Results: The results revealed a distinct pattern of core stuttering behaviours in NS, although discrepancies existed regarding stuttering severity and frequency. It was also found that DS and NS can co-occur. The case history and the core stuttering pattern are important considerations during differential diagnosis, as these are the only consistent characteristics in people with NS. Conclusion: It is unlikely that all the symptoms of NS are present in an individual. The researchers scrutinised the findings of this study and the findings of previous literature to compile a potentially workable checklist.

  1. Imprint cytology on microcalcifications excised by Vacuum-Assisted Breast Biopsy: A rapid preliminary diagnosis

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    Drouveli Theodora

    2007-04-01

    Full Text Available Abstract Background To evaluate imprint cytology in the context of specimens with microcalcifications derived from Vacuum-Assisted Breast Biopsy (VABB. Patients and methods A total of 93 women with microcalcifications BI-RADS 3 and 4 underwent VABB and imprint samples were examined. VABB was performed on Fischer's table using 11-gauge Mammotome vacuum probes. A mammogram of the cores after the procedure confirmed the excision of microcalcifications. For the application of imprint cytology, the cores with microcalcifications confirmed by mammogram were gently rolled against glass microscope slides and thus imprint smears were made. For rapid preliminary diagnosis Diff-Quick stain, modified Papanicolaou stain and May Grunwald Giemsa were used. Afterwards, the core was dipped into a CytoRich Red Collection fluid for a few seconds in order to obtain samples with the use of the specimen wash. After the completion of cytological procedures, the core was prepared for routine histological study. The pathologist was blind to the preliminary cytological results. The cytological and pathological diagnoses were comparatively evaluated. Results According to the pathological examination, 73 lesions were benign, 15 lesions were carcinomas (12 ductal carcinomas in situ, 3 invasive ductal carcinomas, and 5 lesions were precursor: 3 cases of atypical ductal hyperplasia (ADH and 2 cases of lobular neoplasia (LN. The observed sensitivity and specificity of the cytological imprints for cancer were 100% (one-sided, 97.5% CI: 78.2%–100%. Only one case of ADH could be detected by imprint cytology. Neither of the two LN cases was detected by the imprints. The imprints were uninformative in 11 out of 93 cases (11.8%. There was no uninformative case among women with malignancy. Conclusion Imprint cytology provides a rapid, accurate preliminary diagnosis in a few minutes. This method might contribute to the diagnosis of early breast cancer and possibly attenuates

  2. Danish Anaesthesia Allergy Centre - preliminary results

    DEFF Research Database (Denmark)

    Garvey, L H; Roed-Petersen, J; Menné, T

    2001-01-01

    . Patients are tested with all substances they were exposed to, including antibiotics, colloids, latex and chlorhexidine. RESULTS: A total of 68 patients have been referred to date (July 2001) and 36 have completed investigations. Positive test results were mainly seen in patients with more severe reactions...

  3. Preliminary results of steel containment vessel model test

    International Nuclear Information System (INIS)

    Matsumoto, T.; Komine, K.; Arai, S.

    1997-01-01

    A high pressure test of a mixed-scaled model (1:10 in geometry and 1:4 in shell thickness) of a steel containment vessel (SCV), representing an improved boiling water reactor (BWR) Mark II containment, was conducted on December 11-12, 1996 at Sandia National Laboratories. This paper describes the preliminary results of the high pressure test. In addition, the preliminary post-test measurement data and the preliminary comparison of test data with pretest analysis predictions are also presented

  4. [Preliminary results of treatment with aflibercept].

    Science.gov (United States)

    Blăjan, Codruta; Nicula, D; Rusu, Ioana

    2014-01-01

    The paper presents the first results concerning the Aflibercept (Eylea) treatment, the last antiVEGF approved for treatment of the age related macular degeneration (AMD), neovascular form and for macular edema due to the central retinal vein occlusion. The treatment was applied to patients presenting AMD, ME and other diseases: myopic and idiopatic choroidal neovascularisation, central serous choroidopathy (CSC) or diabetic macular edema (DME). The results were good: improvement of the visual acuity, resolution of the intraretinal fluids and macular edema. Although we did not notice major side-effects, resistance or tachyphylaxis, we noticed some recurrences.

  5. Preliminary results of the TBR small tokamak

    International Nuclear Information System (INIS)

    Nascimento, I.C.; Fagundes, A.N.; Da Silva, R.P.; Galvao, R.M.O.; Del Bosco, E.; Vuolo, J.H.; Sanada, E.K.; Dellaqua, R.

    1982-01-01

    The paper gives a short description of the TBR - small Brazilian tokamak and the first results obtained for plasma formation and equilibrium. Measured breakdown curves for hydrogen are shown to be confined within analytically calculated limits and to depend strongly on stray vertical magnetic fields. Time profiles of plasma current in equilibrium are shown and compared with the predictions of a simple analytical model for tokamak discharges. Reasonable agreement is obtained taking Zsub(eff) as a free parameter. (author)

  6. Intracervical sonographic-pathologic correlation: preliminary results.

    Science.gov (United States)

    Dubinsky, Theodore J; Reed, Susan D; Grieco, Verena; Richardson, Michael L

    2003-01-01

    To determine whether current-generation endoluminal ultrasonic transducer technology could visualize dysplastic and malignant cervical lesions. Inclusion criteria for patients enlisted in the study were abnormal Papanicolaou test results, an abnormality seen at colposcopy, and consent for a cone biopsy. In addition, we included 4 women who were undergoing hysterectomy but had no evidence of cervical abnormalities at the time of surgery, for a total of 28 women. We used a 20-MHz annular array intravascular transducer. We correlated all sonographic and pathologic results with regard to being normal or abnormal using the Pearson product moment correlation coefficient, and we evaluated interobserver variation by having 5 blinded sonologists interpret each examination and calculating kappa statistics. We performed intracervical sonography on 24 women with abnormal Papanicolaou test results and on 4 women without abnormalities. Nineteen of the 24 women with proven disease had abnormal sonographic images. Five women with pathologically proven cervical intraepithelial neoplasia I had normal sonographic images. Lesions ranged in size from 0.3 to 7 mm. Two carcinomas (5 and 7 mm diameter), multiple nabothian cysts, cervicitis, and 2 giant cell foreign body reactions were visible on sonography. The correlation coefficient for abnormal sonographic and pathologic findings was 0.87 (P Intracervical sonography was able to visualize dysplastic lesions and carcinomas as hypoechoic defects with surrounding echogenic areas of glandular cervical mucosa. Lesions were shown with sufficient resolution and interobserver variation to suggest that the technique may be clinically applicable, particularly for planning surgical therapy. However, design of a transducer that can be easily sterilized between examinations, similar to current endovaginal probes, would be necessary to make intracervical sonography a clinically feasible examination.

  7. Medical Radioisotope Data Survey: 2002 Preliminary Results

    Energy Technology Data Exchange (ETDEWEB)

    Siciliano, Edward R.

    2004-06-23

    A limited, but accurate amount of detailed information about the radioactive isotopes used in the U.S. for medical procedures was collected from a local hospital and from a recent report on the U.S. Radiopharmaceutical Markets. These data included the total number of procedures, the specific types of procedures, the specific radioisotopes used in these procedures, and the dosage administered per procedure. The information from these sources was compiled, assessed, pruned, and then merged into a single, comprehensive and consistent set of results presented in this report. (PIET-43471-TM-197)

  8. A Quantum Inspired GVNS: Some Preliminary Results.

    Science.gov (United States)

    Papalitsas, Christos; Karakostas, Panayiotis; Kastampolidou, Kalliopi

    2017-01-01

    GVNS is a well known and widely used metaheuristic for solving efficiently many NP-Hard Combinatorial Optimization problems. In this paper, the qGVNS, which is a new quantum inspired variant of GVNS, is being introduced. This variant differs in terms of the perturbation phase because it achieves the shaking moves by adopting quantum computing principles. The functionality and efficiency of qGVNS have been tested using a comparative study (compared with the equivalent GVNS results) in selected TSPLib instances, both in first and best improvement.

  9. PEDESTRIAN PATHFINDING IN URBAN ENVIRONMENTS: PRELIMINARY RESULTS

    Directory of Open Access Journals (Sweden)

    G. López-Pazos

    2017-12-01

    Full Text Available With the rise of urban population, many initiatives are focused upon the smart city concept, in which mobility of citizens arises as one of the main components. Updated and detailed spatial information of outdoor environments is needed to accurate path planning for pedestrians, especially for people with reduced mobility, in which physical barriers should be considered. This work presents a methodology to use point clouds to direct path planning. The starting point is a classified point cloud in which ground elements have been previously classified as roads, sidewalks, crosswalks, curbs and stairs. The remaining points compose the obstacle class. The methodology starts by individualizing ground elements and simplifying them into representative points, which are used as nodes in the graph creation. The region of influence of obstacles is used to refine the graph. Edges of the graph are weighted according to distance between nodes and according to their accessibility for wheelchairs. As a result, we obtain a very accurate graph representing the as-built environment. The methodology has been tested in a couple of real case studies and Dijkstra algorithm was used to pathfinding. The resulting paths represent the optimal according to motor skills and safety.

  10. Pedestrian Pathfinding in Urban Environments: Preliminary Results

    Science.gov (United States)

    López-Pazos, G.; Balado, J.; Díaz-Vilariño, L.; Arias, P.; Scaioni, M.

    2017-12-01

    With the rise of urban population, many initiatives are focused upon the smart city concept, in which mobility of citizens arises as one of the main components. Updated and detailed spatial information of outdoor environments is needed to accurate path planning for pedestrians, especially for people with reduced mobility, in which physical barriers should be considered. This work presents a methodology to use point clouds to direct path planning. The starting point is a classified point cloud in which ground elements have been previously classified as roads, sidewalks, crosswalks, curbs and stairs. The remaining points compose the obstacle class. The methodology starts by individualizing ground elements and simplifying them into representative points, which are used as nodes in the graph creation. The region of influence of obstacles is used to refine the graph. Edges of the graph are weighted according to distance between nodes and according to their accessibility for wheelchairs. As a result, we obtain a very accurate graph representing the as-built environment. The methodology has been tested in a couple of real case studies and Dijkstra algorithm was used to pathfinding. The resulting paths represent the optimal according to motor skills and safety.

  11. Breast tomography with synchrotron radiation: preliminary results

    International Nuclear Information System (INIS)

    Pani, Silvia; Longo, Renata; Dreossi, Diego; Montanari, Francesco; Olivo, Alessandro; Arfelli, Fulvia; Bergamaschi, Anna; Poropat, Paolo; Rigon, Luigi; Zanconati, Fabrizio; Palma, Ludovico Dalla; Castelli, Edoardo

    2004-01-01

    A system for in vivo breast imaging with monochromatic x-rays has been designed and built at the synchrotron radiation facility Elettra in Trieste (Italy) and will be operational in 2004. The system design involves the possibility of performing both planar mammography and breast tomography. In the present work, the first results obtained with a test set-up for breast tomography are shown and discussed. Tomographic images of in vitro breasts were acquired using monochromatic x-ray beams in the energy range 20-28 keV and a linear array silicon pixel detector. Tomograms were reconstructed using standard filtered backprojection algorithms; the effect of different filters was evaluated. The attenuation coefficients of fibroglandular and adipose tissue were measured, and a quantitative comparison of images acquired at different energies was performed by calculating the differential signal-to-noise ratio of fibroglandular details in adipose tissue. All images required a dose comparable to the dose delivered in clinical, conventional mammography and showed a high resolution of the breast structures without the overlapping effects that limit the visibility of the structures in 2D mammography. A quantitative evaluation of the images proves that the image quality at a given dose increases in the considered energy range and for the considered breast sizes

  12. Bahamas Optical Turbulence Exercise (BOTEX): preliminary results

    Science.gov (United States)

    Hou, Weilin; Jorosz, Ewa; Dalgleish, Fraser; Nootz, Gero; Woods, Sarah; Weidemann, Alan D.; Goode, Wesley; Vuorenkoski, Anni; Metzger, B.; Ramos, B.

    2012-06-01

    patterns are examined, using high speed camera recordings (300 to 1200 fps), in association with measured turbulence structures. Initial results confirmed our hypothesis that turbulence impacted optical transmissions. They also showed that more research will be needed to better quantify and mitigate such effects, especially for the U.S. Navy's next generation EO systems, including active imaging, lidar and optical communications.

  13. Compilation of a preliminary checklist for the differential diagnosis of neurogenic stuttering.

    Science.gov (United States)

    Lundie, Mariska; Erasmus, Zandria; Zsilavecz, Ursula; Van der Linde, Jeannie

    2014-06-27

    Neurogenic stuttering (NS) is the most frequently occurring acquired form of stuttering in children and adults. This form of stuttering is primarily caused by neurological incidents. Owing to controversies with regard to similarities between developmental stuttering (DS) and NS symptomatology, differential diagnosis is problematic. Differential diagnosis will guide the appropriate management of persons who stutter (PWS). The aim of this study was to describe and highlight the characteristics of NS in order to compile a preliminary checklist for accurate diagnosis and intervention. An explorative, applied mixed method, multiple case study research design was followed. Purposive sampling was used to select four participants. A comprehensive assessment battery was compiled for data collection. The results revealed a distinct pattern of core stuttering behaviours in NS, although discrepancies existed regarding stuttering severity and frequency. It was also found that DS and NS can co-occur. The case history and the core stuttering pattern are important considerations during differential diagnosis, as these are the only consistent characteristics in people with NS. It is unlikely that all the symptoms of NS are present in an individual. The researchers scrutinised the findings of this study and the findings of previous literature to compile a potentially workable checklist.

  14. The friction of polymers around Tg,Tm : Preliminary results

    DEFF Research Database (Denmark)

    Sivebæk, Ion Marius; Samoilov, V N; Persson, B N J

    We present Molecular Dynamics calculations involving polymers of different lengths. Polymers with lengths from 20 to 1400 carbon atoms are considered. The systems are able to simulate friction between polymer surfaces and polymer against metal. The results we present are very preliminary and they......We present Molecular Dynamics calculations involving polymers of different lengths. Polymers with lengths from 20 to 1400 carbon atoms are considered. The systems are able to simulate friction between polymer surfaces and polymer against metal. The results we present are very preliminary...

  15. Galactomannan and Real-Time PCR in the diagnosis of invasive Aspergillosis: preliminary data

    Directory of Open Access Journals (Sweden)

    Cristina Pedrotti

    2014-03-01

    Full Text Available The diagnosis of invasive aspergillosis is notoriously difficult. The standard culture-based methods have shown considerable limitations in performance. For this reason, non-culture methods have been increasingly employed for the diagnosis of invasive aspergillosis, and, among them, the methods based on Real-Time polymerase chain reaction (RT-PCR. In this study we assess the contribution in lowering diagnosis errors provided by the RT-PCR method when run alongside other methods. We analyzed 23 biological samples, 14 serum samples, and 9 bronchoalveolar lavage samples (BAL from 10 immunocompromised patients who were selected according to EORTC/MSG criteria (European Organization for Research and Treatment of Cancer/Mycoses Study Group. On the serum sample we searched the galactomannan (GM (Platelia Aspergillus® and the fungal genome (MycAssayTMAspergillus; the BAL samples were subjected also to the culture tests. In 11 serum samples the results showed concordance between GM and RT–PCR tests, while in 3 samples we report discordance: 2 results were GM positive and RT-PCR negative, and 1 results GM negative and RT-PCR indeterminate. In 5 BAL samples the results showed concordance between the two methods, while 4 were GM positive and RT-PCR negative. The data, although still preliminary, suggest an increased accuracy in the diagnosis of suspected invasive aspergillosis when employing both RT-PCR and GM tests given that the RT-PCR test eliminates the false positive results of the GM test. The PCR methods require, however, further applications of this type of diagnostic because of the severe limit given by the lack of standardization.

  16. Preliminary results of neutron production in Sahand plasma focus device

    International Nuclear Information System (INIS)

    Siahpoush, V.; Mohammadi, M.A.; Khorram, S.; Shabani, I.; Borhanian, J.; Ashrafi, S.; Naghshara, H.; Moslehi-Fard, M.; Sobhanian, S.

    2004-01-01

    We report in this paper the preliminary results of neutron generation during fusion reaction in deuterium in the Sahand Filipov type plasma focus, recently installed and put in operation at Tabriz University. The special calibration procedure for neutron detection system, using activation method is described

  17. Preliminary Results of High-Energy Cosmic Ray Muons as ...

    Indian Academy of Sciences (India)

    Home; Journals; Journal of Astrophysics and Astronomy; Volume 38; Issue 1. Preliminary Results of High-Energy Cosmic Ray Muons as Observed by a Small Multiwire Detector Operated at High Cutoff Rigidity. Abdullrahnan Maghrabi Mohammed Alanazi A. Aldosari M. Almuteri. Research Article Volume 38 Issue 1 March ...

  18. Structural investigations of biogenic iron oxide samples. Preliminary results

    International Nuclear Information System (INIS)

    Balasoiu, M.; Kuklin, A.I.; Orelovich, O.L.; Kovalev, Yu.S.; Arzumanyan, G.M.; Kurkin, T.S.; Stolyar, S.V.; Iskhakov, R.S.; Rajkher, Yu.L.

    2008-01-01

    Some preliminary results on morphology and structure of iron oxide particles formed inside Klebsiella oxytoca bacteria are presented. In particular, by means of optical microscopy, scanning electron microscopy and small-angle X-ray scattering the effect of the bacteria age (the duration of growth) on the nanoparticles properties is studied

  19. Radon concentrations in Norwegian kindergartens: survey planning and preliminary results

    International Nuclear Information System (INIS)

    Birovljev, A.; Strand, T.; Heiberg, A.

    1998-01-01

    An extensive radon survey in Norwegian kindergartens and schools was started in early 1997; so far 2481 kindergartens were examined. Preliminary results of the first phase of the survey are presented in tabular and graphic form including, among others, the dependence of average radon concentration on the construction year of the kindergartens and on the age of the buildings. (A.K.)

  20. Does Diagnosis of Hypertension Prevent Stroke? A Preliminary ...

    African Journals Online (AJOL)

    Introduction: The present study was designed to determine the relative frequency of previously diagnosed and undiagnosed hypertension in first stroke in order to evaluate if previous diagnosis of hypertension can prevent stroke. Patients and Methods: One hundred and twenty nine first stroke patients presenting at the ...

  1. Rayleigh to Compton ratio scatter tomography applied to breast cancer diagnosis: A preliminary computational study

    International Nuclear Information System (INIS)

    Antoniassi, M.; Conceição, A.L.C.; Poletti, M.E.

    2014-01-01

    In the present work, a tomographic technique based on Rayleigh to Compton scattering ratio (R/C) was studied using computational simulation in order to assess its application to breast cancer diagnosis. In this preliminary study, some parameters that affect the image quality were evaluated, such as: (i) energy beam, (ii) size and glandularity of the breast, and (iii) statistical count noise. The results showed that the R/C contrast increases with increasing photon energy and decreases with increasing glandularity of the sample. The statistical noise showed to be a significant parameter, although the quality of the obtained images was acceptable for a considerable range of noise level. The preliminary results suggest that the R/C tomographic technique has a potential of being applied as a complementary tool in the breast cancer diagnostic. - Highlights: ► A tomographic technique based on Rayleigh to Compton scattering ratio is proposed in order to study breast tissues. ► The Rayleigh to Compton scattering ratio technique is compared with conventional transmission technique. ► The influence of experimental parameters (energy, sample, detection system) is studied

  2. Review of diagnosis and classification of leukemias that occurred in A-bomb survivors (preliminary report)

    International Nuclear Information System (INIS)

    Matsuo, Tatsuki; Tomonaga, Masao; Ichimaru, Michito; Kamata, Nanao; Kuramoto, Atsushi.

    1984-01-01

    According to the current knowledge of diagnosis and classification, a review of 157 patients who had developed leukemia before June 30, 1967 was made. The total number of acute leukemia slightly decreased among A-bomb survivors in Hiroshima; however, the number of acute lymphatic leukemia (ALL) increased. The number of chronic myeloid leukemia (CML) was unchanged. The frequency of CML implied that A-bombing damaged stem cells in a high incidence. Among A-bomb survivors in Nagasaki, although the number of acute non-lymphatic leukemia decreased, the number of ALL was unchanged. Adult T-cell leukemia (ATL) was diagnosed in 7 A-bomb survivors, confirming that Nagasaki is an endemic area for ATL. These preliminary results seem to be of importance in elucidating the mechanism of leukemia developiong among A-bomb survivors. (Namekawa, K.)

  3. Hellenic Amateur Astronomy Association's activities: Preliminary results on Perseids 2010

    Science.gov (United States)

    Maravelias, G.

    2011-01-01

    Preliminary results on the Perseids 2010 are presented. Visual and video observations were obtained by the author and a first reduction of the visual data shows that a maximum of ZHR ~120 was reached during the night 12-13 of August 2010. Moreover, a video setup was tested (DMK camera and UFO Capture v2) and the results show that, under some limitations, valuable data can be obtained.

  4. Iron in hereditary retinal degeneration: PIXE microanalysis Preliminary results

    International Nuclear Information System (INIS)

    Sergeant, C.; Gouget, B.; Llabador, Y.; Simonoff, M.; Yefimova, M.; Courtois, Y.; Jeanny, J.C.

    1999-01-01

    Several types of hereditary retinal degeneration with progressive alteration of photoreceptors exist in men and animals. Recent immunohistochemical results have shown strong degradation of transferrin, the protein responsible for iron transport, in retinas of rats with hereditary retinal degeneration. Freeze-dried thin sections of rat retinas from different stages of the disease, and respective coeval control sections, have been analyzed using nuclear microprobe. In this first part of the study, the rat retinas at post-natal stages of 35 and 45 days have been analyzed. The sample preparation and the post-irradiation staining to determine precisely the retinal layers involved are described. Preliminary results of element distributions (K, Ca, Fe) in the rat retina layers are discussed. A very high content of calcium in the choriocapillaris of dystrophic rat retinas was observed. Preliminary results on iron distribution in the rat retina layers are presented

  5. Preliminary results of noncircular plasma experiments in Doublet III

    International Nuclear Information System (INIS)

    Ohkawa, T.

    1980-02-01

    Preliminary results of noncircular plasma experiments in Doublet III are reported. Shaping and discharge characteristics in doublet plasmas with high-Z limiters are described. Electron energy confinement and maximum plasma density are in agreement with standard circular tokamak empirical scaling laws. Chromium and molybdenum appear to be the dominant high-Z contaminants while carbon appears to dominate low-Z contaminants. High-Z impurity radiation does not appear to dominate the central power balance

  6. Preliminary results on TeV sources search with AGILE

    International Nuclear Information System (INIS)

    Rappoldi, A.; Longo, F.; Argan, A.; Barbiellini, G.; Boffelli, F.; Bulgarelli, A.; Caraveo, P.; Cattaneo, P.W.; Chen, A.W.; Cocco, V.; Colafrancesco, S.; Costa, E.; D' Ammando, F.; De Paris, G.; Del Monte, E.; Di Cocco, G.; Donnarumma, I.; Evangelista, Y.; Ferrari, A.; Feroci, M.

    2011-01-01

    During its first 2 years of operation, the gamma-ray AGILE satellite almost completed a full study of the gamma-ray sky. This paper presents the preliminary results of the systematic study performed on the AGILE data to search for GeV counterparts and to derive flux upper limits of the TeV sources detected by various instruments (MAGIC, HESS, VERITAS, Cangaroo, MILAGRO, ARGO,...).

  7. Preliminary results of statistical dynamic experiments on a heat exchanger

    International Nuclear Information System (INIS)

    Corran, E.R.; Cummins, J.D.

    1962-10-01

    The inherent noise signals present in a heat exchanger have been recorded and analysed in order to determine some of the statistical dynamic characteristics of the heat exchanger. These preliminary results show that the primary side temperature frequency response may be determined by analysing the inherent noise. The secondary side temperature frequency response and cross coupled temperature frequency responses between primary and secondary are poorly determined because of the presence of a non-stationary noise source in the secondary circuit of this heat exchanger. This may be overcome by correlating the dependent variables with an externally applied noise signal. Some preliminary experiments with an externally applied random telegraph type of signal are reported. (author)

  8. Preliminary Results of the Louisiana Sex Offender Treatment Program

    Directory of Open Access Journals (Sweden)

    Lee A. Underwood

    2015-12-01

    Full Text Available The purpose of this study was to offer preliminary support for the Louisiana Sex Offender Treatment Program (LSOTP in addressing the needs of juvenile sex offenders. Research objectives were (1 to offer statistical evidence for reductions in anxiety, depression, cognitive distortion and negative attitudes towards women comparing a group of 21 adolescents, 12 of whom received services as usual and nine of whom participated in the LSOTP. A controlled experimental evaluation design was utilized. The juvenile sex offenders were randomly assigned to the experimental group for 12 weeks receiving treatment services and a control group receiving care “as usual” in a residential group care program. Participants in the experimental group experienced statistically significant decreases in cognitive distortions related specifically to rape and molestation.The results of this study offer preliminary support of the LSOTP as a best practices alternative to other treatment modalities.

  9. Preliminary results on heavy flavor physics at SLD

    Energy Technology Data Exchange (ETDEWEB)

    Usher, T. [Stanford Univ., CA (United States)

    1994-12-01

    The author reports on preliminary heavy flavor physics results from the SLD detector at the SLAC Linear Collider. Efficient tagging of b{bar b} events is achieved with an impact parameter technique that takes advantage of the small and stable interaction point of the SLC and all charged tracks in Z{sup 0} decays. This technique is applied to samples of Z{sup 0} events collected during the 1992 and 1993 physics runs. Preliminary measurements of the ratio R{sub b} = {Gamma}(Z{sup 0} {yields} b{bar b})/{Gamma}(Z{sup 0} {yields} hadrons) and the average B hadron lifetime <{tau}{sub B}> are reported. In a sample of 27K Z{sup 0} events, values of R{sub b} = 0.235 {+-} 0.006(stat.) {+-} 0.018(syst.) and <{tau}{sub B}> = 1.53 {+-} 0.006(stat.) {+-} 0.018(syst.) are obtained. In addition, the first measurement of the left-right asymmetry A{sub b} is reported. Using a sample of 38K Z{sup 0} events with a luminosity weighted electron polarization of 62%, the author obtains a preliminary value of A{sub b} = 0.94 {+-} 0.006(stat.) {+-} 0.018(syst.).

  10. Preliminary Results on Uncertainty Quantification for Pattern Analytics

    Energy Technology Data Exchange (ETDEWEB)

    Stracuzzi, David John [Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States); Brost, Randolph [Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States); Chen, Maximillian Gene [Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States); Malinas, Rebecca [Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States); Peterson, Matthew Gregor [Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States); Phillips, Cynthia A. [Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States); Robinson, David G. [Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States); Woodbridge, Diane [Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)

    2015-09-01

    This report summarizes preliminary research into uncertainty quantification for pattern ana- lytics within the context of the Pattern Analytics to Support High-Performance Exploitation and Reasoning (PANTHER) project. The primary focus of PANTHER was to make large quantities of remote sensing data searchable by analysts. The work described in this re- port adds nuance to both the initial data preparation steps and the search process. Search queries are transformed from does the specified pattern exist in the data? to how certain is the system that the returned results match the query? We show example results for both data processing and search, and discuss a number of possible improvements for each.

  11. Escherichia coli O26 IN RAW BUFFALO MILK: PRELIMINARY RESULTS

    Directory of Open Access Journals (Sweden)

    A. Rella

    2013-02-01

    Full Text Available Escherichia coli O26 is considered to be one of the most important food-borne pathogen. In this study, 120 buffalo milk samples collected in Lazio and in Apulia regions were tested for the presence of E. coli O26. One buffalo milk sample (0,8% tested positive for E. coli O26; the isolate was positive at the verocytotoxicity test and it showed resistance properties to different antimicrobial classes. These preliminary results highlight the need to monitor the foods of animal origin used for production and eaten by a wide range of persons, respect VTEC organism.

  12. King County Metro Battery Electric Bus Demonstration: Preliminary Project Results

    Energy Technology Data Exchange (ETDEWEB)

    2017-05-22

    The U.S. Federal Transit Administration (FTA) funds a variety of research projects that support the commercialization of zero-emission bus technology. To evaluate projects funded through these programs, FTA has enlisted the help of the National Renewable Energy Laboratory (NREL) to conduct third-party evaluations of the technologies deployed under the FTA programs. NREL works with the selected agencies to evaluate the performance of the zero-emission buses compared to baseline conventional buses in similar service. The evaluation effort will advance the knowledge base of zero-emission technologies in transit bus applications and provide 'lessons learned' to aid other fleets in incrementally introducing next generation zero-emission buses into their operations. This report provides preliminary performance evaluation results from a demonstration of three zero-emission battery electric buses at King County Metro in King County, Washington. NREL developed this preliminary results report to quickly disseminate evaluation results to stakeholders. Detailed evaluation results will be published in future reports.

  13. Preliminary study of an immunochromatography test for serological diagnosis of canine brucellosis.

    Science.gov (United States)

    Wanke, M M; Cairó, F; Rossano, M; Laiño, M; Baldi, P C; Monachesi, N E; Comercio, E A; Vivot, M M

    2012-12-01

    The most widely used screening test for the diagnosis of brucellosis in the dog is the rapid slide agglutination test in the presence of 2-mercaptoethanol (2ME-RSAT). The diagnosis is partially confirmed by the agar gel immunodiffusion test (AGID) and definitively confirmed by bacteriological isolation. Some chronic cases not detected by these tests may be detected by ELISA tests. The use of 2ME-RSAT in routine clinical practice requires a microscope and an experienced operator. An immunochromatographic diagnostic test for canine brucellosis (FASTest(®) Brucella c., Megacor, Hörbranz, Austria) has been recently released. In this study, we compared the diagnostic performance of the FASTest with those of 2ME-RSAT, AGID and ELISAs. Sera from 17 healthy dogs used as negative controls yielded negative results by FASTest, indicating a 100% specificity in this sample. Among 27 sera of dogs with acute or subacute brucellosis confirmed by B. canis isolation, all of which were positive by RSAT and ELISAs, the FASTest was positive in 24 cases and AGID in 23. In acute and subacute cases, the sensitivity of FASTest was 89%. Sera from six dogs with bacteriologically confirmed chronic brucellosis, which were positive by ELISAs but negative by 2ME-RSAT, were also tested; 1 was positive by FASTest and 4 were positive by AGID. These preliminary results indicate a good specificity of the FASTest (100% in this sample) but an unacceptable sensitivity as a screening test. In cases with chronic brucellosis, the sensitivity of the FASTest was lower than that of ELISAs but this assay could make a good intermediate test to be run after a positive RSAT and before running an AGID. © 2012 Blackwell Verlag GmbH.

  14. Preliminary results of spatially resolved ECR ion beam profile investigations

    International Nuclear Information System (INIS)

    Panitzsch, L.; Stalder, M.; Wimmer-Schweingruber, R.F.

    2012-01-01

    The profile of an ion beam produced in an Electron Cyclotron Resonance Ion Source (ECRIS) can vary greatly depending on the source settings and the ion-optical tuning. Strongly focussed ion beams form circular structures (hollow beams) as predicted by simulations and observed in experiments. Each of the rings is predicted to be dominated by ions with same or at least similar m/q-ratios due to ion-optical effects. To check this we performed a series of preliminary investigations to test the required tuning capabilities of our ion source. This includes beam focussing (A) and beam steering (B) using a 3D-movable extraction. Having tuned the source to deliver a beam of strongly focussed ions of different ion species and having steered this beam to match the transmittance area of the sector magnet we also recorded the ion charge state distribution of the strongly focussed beam profile at different, spatially limited positions (C). The preliminary results will be introduced within this paper: it appears that our 3D-movable extraction is very efficient to steer and to focus the beam strongly. The paper is followed by the slides of the presentation. (authors)

  15. Preliminary Results from the Cassini RADAR Ring Observations

    Science.gov (United States)

    West, Richard D.; Janssen, Michael A.; Zhang, Zhimeng; Cuzzi, Jeffrey N.; Anderson, Yanhua; Hamilton, Gary; Elachi, Charles; Cassini RADAR Science Team

    2017-10-01

    In its last year of operation, the Cassini spacecraft executed a series of short highly inclined orbits that brought it close to Saturn’s rings. The Cassini RADAR instrument collected active and passive data of the rings in five separate observations. These observations provided a unique opportunity to obtain backscatter measurements and relatively high-resolution brightness temperature measurements from the rings. Such measurements were never before possible from the spacecraft or the Earth due to high range. Preliminary examination of the active data shows major ring structural features such as the Cassini Division, the Encke Gap, and the Keeler Gap. This presentation will show preliminary processing results from the radar rings scans and discuss the calibration and processing issues. These ring scan measurements provide a 1-D profile of backscatter obtained at 2.2 cm wavelength that complements similar passive profiles obtained at optical, infrared, and microwave wavelengths. Such measurements can further constrain and inform models of the ring particle composition and structure, and the local vertical structure of the rings. This work is supported by the NASA Cassini Program at JPL - CalTech.

  16. DECOMPOSITION OF TARS IN MICROWAVE PLASMA – PRELIMINARY RESULTS

    Directory of Open Access Journals (Sweden)

    Mateusz Wnukowski

    2014-07-01

    Full Text Available The paper refers to the main problem connected with biomass gasification - a presence of tar in a product gas. This paper presents preliminary results of tar decomposition in a microwave plasma reactor. It gives a basic insight into the construction and work of the plasma reactor. During the experiment, researches were carried out on toluene as a tar surrogate. As a carrier gas for toluene and as a plasma agent, nitrogen was used. Flow rates of the gases and the microwave generator’s power were constant during the whole experiment. Results of the experiment showed that the decomposition process of toluene was effective because the decomposition efficiency attained above 95%. The main products of tar decomposition were light hydrocarbons and soot. The article also gives plans for further research in a matter of tar removal from the product gas.

  17. TSUNAMI PROPAGATION ALONG TAGUS ESTUARY (LISBON, PORTUGAL PRELIMINARY RESULTS

    Directory of Open Access Journals (Sweden)

    M. A. Viana-Baptista

    2006-01-01

    Full Text Available In this study we present preliminary results of flood calculation along Tagus Estuary, a catastrophic event that happened several times in the past, as described in historical documents, and that constitutes one of the major risk sources for Lisbon coastal area. To model inundation we used Mader’s SWAN model for the open ocean propagation with a 2 km grid, and Imamura’s TSUN2 with a 50 m grid covering the entire estuary. The seismic source was computed with the homogeneous elastic half space approach. Modelling results agree with historical reports. Synthetic flood areas correspond to the sites where there are morphological and sedimentary evidences of two known major events that stroke Lisbon: 1531-01-26 and 1755-11-01 tsunamis.

  18. Preliminary results of the first paleontologic investigations in Uruguayan Antarctica

    International Nuclear Information System (INIS)

    Perea, D.; Masquelin, E.; Verde, M.; Querequiz, R.

    1998-01-01

    Preliminary results of the first Uruguayan paleontollogic and biostratigraphical investigations in Antartica are presented. The field work was performed in fildes Peninsula, King George Island, near Uruguayan station Base Cientifica Antarctica Artigas.Some fossiliferous outcrops were geologic and paleontologically analyzed, among them Fossil Hills, situated in the center part of the peninsula, in front of Ardley Island, between the chinese and chilean stations.This hill is composed of fossil bearing piroclastic and epiclastic rocks, assigned to the fossil Hill Fm. Vegetal remains(petrified wood and leaf impronts) were observed and collected in this unit and it is remarkable the presence of Nothofagus sp. and invertebrate trace fossils, Cochlichmus isp and Helminthopsis isp.The depositional environment deduced from the fossil association in lacustrine, under a warm and humid climate.In the same deposits, other investigators have collected aquatic and ratite bird trace fossils. Paleontologic evidence is not contradictory with the Eocene age previously proposed for the studied deposits. (author)

  19. Preliminary Results of the CASCADE Hidden Sector Photon Search

    CERN Document Server

    Woollett, Nathan; Burt, Graeme; Chattopadhyay, Swapan; Dainton, John; Dexter, Amos; Goudket, Phillipe; Jenkins, Michael; Kalliokoski, Matti; Moss, Andrew; Pattalwar, Shrikant; Thakker, Trina; Williams, Peter

    2015-01-01

    Light shining through a wall experiments can be used to make measurements of photon-WISP couplings. The first stage of the CASCADE experiment at the Cockcroft Institute of Accelerator Science and Technology is intended to be a proof-of-principle experiment utilising standard microwave technologies to make a modular, cryogenic HSP detector to take advantage of future high-power superconducting cavity tests. In these proceedings we will be presenting the preliminary results of the CASCADE LSW experiment showing a peak expected exclusion of $1.10 \\times 10^{-8}$ in the mass range from 1.96$\\mu$eV to 5.38$\\mu$eV, exceeding current limits.

  20. Sedimentation on the Valencia Continental Shelf: Preliminary results

    Science.gov (United States)

    Maldonado, Andres; Swift, Donald J. P.; Young, Robert A.; Han, Gregory; Nittrouer, Charles A.; DeMaster, David J.; Rey, Jorge; Palomo, Carlos; Acosta, Juan; Ballester, A.; Castellvi, J.

    1983-10-01

    Preliminary analysis of data collected during the course of a cooperative Spanish-United States investigation of the Valencia Shelf (western Mediterranean) reveals a storm-dominated, mud-accumulating sedimentary regime. Calcareous mud is accumulating seaward of a narrow band of shoreface sand and gravel. On the outer shelf the mud is enriched by a pelagic calcareous component. Preliminary 210Pb data from vertical profiles of box cores yield nominal accumulation rates from 2.6 mm y -1 near the Ebro Delta to 1.3 mm y -1 on the southern portion of the Valencia Shelf. Storm-current winnowing has resulted in the development of a biogenic lag sand over the mid-shelf mud in the northern part of the study area. Piston cores reveal a basal Holocene sand and gravel facies similar to that presently seen on the inner shelf. Upward-fining sequences on the central and outer shelf are inferred to result from the landward shift of lithotopes during the course of the Holocene transgression. These sequences are locally repeated, perhaps as the consequence of brief, local interludes of coastal progradation. Application of a diagnostic circulation model suggests that intense, downwelling coastal flows occur during winter northeastern storms. Storm activity has induced erosional shoreface retreat during the course of the Holocene transgression and has generated by this means the basal coarse facies observed in the piston cores. In the central part of the study area seaward of the Albufera Lagoon, the mud blanket thins to a layer several centimeters thick which is draped over a thickened (10 m) basal sand. The basal sand is molded into northwest trending ridges. The data are not sufficient to determine whether these are overstepped barriers, or submarine sand ridges formed by storm flows during the shoreface retreat process.

  1. Uranium and thorium recovery in thorianite ore-preliminary results

    Energy Technology Data Exchange (ETDEWEB)

    Gaiotte, Joao V.M. [Universidade Federal de Alfenas, Pocos de Caldas, MG (Brazil); Villegas, Raul A.S.; Fukuma, Henrique T., E-mail: rvillegas@cnen.gov.br, E-mail: htfukuma@cnen.gov.br [Comissao Nacional de Energia Nuclear (CNEN), Pocos de Caldas, MG (Brazil). Lab. de Pocos de Caldas

    2011-07-01

    This work presents the preliminary results of the studies aiming to develop a hydrometallurgical process to produce uranium and thorium concentrates from thorianite ore from Amapa State, Brazil. This process comprises two major parts: acid leaching and Th/U recovery using solvent extraction strategies. Thorianite ore has a typical composition of 60 - 70% of thorium, 8 - 10% lead and 7 - 10% uranium. Sulfuric acid leaching operational conditions were defined as follows: acid/ore ratio 7.5 t/t, ore size below 65 mesh (Tyler), 2 hours leaching time and temperature of 100 deg C. Leaching tests results showed that uranium and thorium recovery exceeded 95%, whereas 97% of lead ore content remained in the solid form. Uranium and thorium simultaneous solvent extraction is necessary due to high sulfate concentration in the liquor obtained from leaching, so the Primene JM-T primary anime was used for this extraction step. Aqueous raffinate from extraction containing sulfuric acid was recycled to the leaching step, reducing acid uptake around 60%, to achieve a net sulfuric acid consumption of 3 t/t of ore. Uranium and thorium simultaneous stripping was performed using sodium carbonate solution. In the aqueous stripped it was added sulfuric acid at pH 1.5, followed by a second solvent extraction step using the tertiary amine Alamine 336. The following stripping step was done with a solution of sodium chloride, resulting in a final solution of 23 g L-1 uranium. (author)

  2. Preliminary results in double cusp tandem mirror MM-4U

    International Nuclear Information System (INIS)

    Ming Linzhou; Tian Zhongyu; Feng Xiaozhen

    1990-10-01

    MM-4U device and preliminary experimental results are presented. Main results are as follows: The plasma has been produced by means of the injection of strong electron current; the axial profile of the plasma potential and the plasma electron density have been obtained respectively, they had a simular form; the plasma potential in the centre of the east cusp, the west cusp and the simple mirror; V e = -180V, V w = -164V, V m -1.8V; the electron density: n e = 1.7 x 10 11 cm -3 , n w = 4.7 x 10 10 cm -3 , n m = 7.5 x 10 7 cm -3 ; the electron temperature: T e = (19.9 ± 1.6) eV, T w = (20.7 ± 1.7) eV; the plasma pressure at 8 cm on the right of the west cusp centre is about 6.76 Pa, β ≅ 1.7 x 10 -3 . The plasma instability has been observed in the simple mirror, its vibration frequency was 7∼9.2 kHz. The results are discussed. The next new task of the physical experiment are proposed

  3. [Salvage radical prostatectomy for brachytherapy failure: preliminary results].

    Science.gov (United States)

    Saeedi, Y; Pop, M; Jacqmin, D

    2014-04-01

    Analysis of preliminary results in six patients operated by second-line (salvage) radical prostatectomy for local recurrence after low-dose brachytherapy. Since January 2009, six patients had an open salvage radical prostatectomy with a lymph node dissection and without neurovascular bundles preservation for a low-dose I125 brachytherapy failure. Local recurrence was confirmed by trans-rectal biopsy or TURP. All the patients had PSA increase or lower urinary tract symptoms. Bone scan and pelvis MRI were performed to detect a locally advanced disease, a lymph node involvement or the presence of bone metastasis. Pathology reports and PSA level at 1, 3, 6 and 12 months were analyzed. Salvage radical prostatectomy with lymph node dissection was performed in all patients without major complications. The PSA level was below 0.1 ng/mL in five out of six patients at 1 and 3 months. The only case of persistent PSA is treated by androgen deprivation in a pT3b N1 patient. Salvage radical prostatectomy after brachytherapy failure was feasible with a limited perioperative morbidity. This second-line curative treatment in a selected group of patients should be kept in mind. Our early results looked promising. Copyright © 2013 Elsevier Masson SAS. All rights reserved.

  4. Magnetic resonance imaging of the brain in neonates. Preliminary results

    International Nuclear Information System (INIS)

    Dumoulin, M.; Legrand, M.; Gremillet, C.; Lecouffe, P.; Rousseau, J.; Pruvo, J.P.; Marchandise, X.

    1991-01-01

    The place of neonatal cerebral MRI and its specific contribution compared with conventional imaging techniques were evaluated in 36 patients. The difficulties specific to the patient population studied met during this preliminary period are described, with their local solutions. A preliminary evaluation of the diagnostic and prognostic value of MRI according to the disease state and gestational age is presented. The specific contribution of MRI compared with transfontanellar ultrasonography and CT scan is discussed [fr

  5. CPCRA 007: preliminary results of combination antiretroviral study.

    Science.gov (United States)

    Randall, P

    1996-03-01

    Preliminary data from the Terry Beirn Community Programs for Clinical Research on AIDS (CPCRA) showed that in patients with no prior use of zidovudine (AZT), combination therapy was more effective than AZT alone for slowing clinical progression and improving survival. Sponsored by the National Institute of Allergy and Infectious Diseases (NIAID), CPCRA 007 assessed the safety and efficacy of combination therapy--AZT plus didanosine (ddI) or AZT plus zalcitabine (ddC)-- as compared to AZT monotherapy in HIV-infected people. Volunteers who previously had an AIDS-defining condition or fewer than 200 CD4+ T cells per cubic millimeter (mm3) of blood were admitted to the study. The results also showed that combination therapy (AZT plus ddI or AZT plus ddC) provided modest benefits in slowing disease progression and reducing the rate of death compared to AZT alone. The findings of CPCRA 007 are similar to the Delta trial (a European-Australian collaborative study) and the NIAID-supported AIDS Clinical Trials Group (ACTG) 175. NIAID researchers are now working with sponsors of the Delta trial to analyze data from all three studies. For enrollment information, individuals may contact the AIDS Clinical Trials Information Service.

  6. External shock waves therapy in dystonia: preliminary results.

    Science.gov (United States)

    Trompetto, C; Avanzino, L; Bove, M; Marinelli, L; Molfetta, L; Trentini, R; Abbruzzese, G

    2009-04-01

    Extracorporeal shock wave therapy (ESWT) has been shown to reduce hypertonia in patients with upper motor neuron syndrome without any side effect. The aim of the present study is to investigate whether ESWT could be useful also in patients with dystonia. We evaluated three patients with secondary dystonia and three patients with idiopathic writer's cramp. Placebo treatment was performed in each patient. ESWT was administered during four sessions (once weekly) to the target muscles of hand and forearm using an electromagnetic lithotripter (Modulith SLK--Storz Medical). Clinical evaluation was performed using the Unified Dystonia Rating Scale in patients with secondary dystonia and the Arm Dystonia Disability Scale in patients with writer's cramp. After treatment, the three patients with secondary dystonia showed a marked improvement which lasted at least until 1 month after the last session. In the patients with writer's cramp, the improvement after ESWT was less consistent being effective only in two subjects. There were no associated adverse effects. Extracorporeal shock wave therapy is probably an effective and safe treatment for upper limb dystonia, particularly for the secondary forms. Larger randomized studies are needed to confirm these preliminary results.

  7. Genetic Variation A mong European Lophodermium piceae Populations - Preliminary Results

    Directory of Open Access Journals (Sweden)

    MÜLLER, Michael M.

    2007-01-01

    Full Text Available Lophodermium piceae is a common needle endophyte of Norway spruce (Picea abies. The aim of the present study was to examine the degree of differentiation within and among European populations separated by various distances and geographical obstacles. For this purpose, populations (including > 10 isolates/subpopulation were collected along a north-south transect stretching from the northern timberline in Finnish Lapland to the southern border of the distribution area of Norway spruce in northern Italy. Differentiation between L. piceae populations was determined from DNA sequences of three genetic markers. One of the markers was the internal transcribed spacer (ITS of the ribosomal DNA and the other two (LP1 and LP2 were based on sequence characterized amplified regions (SCAR designed for L. piceae. Preliminary results including sequences of Finnish, Swiss and Italian isolates show low differentiation among populations. According to analysis of molecular variance the among population variation was 1%, 5% and 0% in ITS, LP1 and LP2 markers, respectively.

  8. Preliminary results on the Arecibo Pisces-Perseus Supercluster Survey

    Science.gov (United States)

    Cortes, Rosemary; Lebron, Mayra; Jones, Michael G.; Koopmann, Rebecca A.; Haynes, Martha P.; APPSS Team, Undergraduate ALFALFA Team, and the ALFALFA Team

    2018-01-01

    The Arecibo Pisces-Perseus Supercluster Survey (APPSS) aims to exploit the Baryonic Tully-Fisher Relation to derive distances and peculiar velocities of galaxies in and near the main ridge of the Pisces-Perseus Supercluster (PPS), one of the most prominent features of the Cosmic Web in the nearby Universe. The sample of galaxies contains ~ 600 sources in the low-mass range (8 ALFALFA HI survey, SDSS and GALEX photometric data. The sample galaxies have HI masses just below the ALFALFA detection threshold, and were selected to be blue disk systems (low surface brightness sources from optical photometry data). The HI data were obtained at the Arecibo Observatory between the years 2015 and 2016. With this sample, the nature of the galaxy population in and around the PPS will be investigated. The HIMF to log MHI ~ 8.0 along the PPS filament will be measured and using the Tully-Fisher relation it will be possible to make a robust measurement of the infall and backflow onto the filamentary structure.APPSS is collaborative project between more than 10 Undergraduate ALFALFA Team institutions in which each group contributes to the analysis of a subset of the HI PPS data. In this poster, we will present the contributions of the U.P.R. team to the APPSS project. We will show the procedure used for the Arecibo HI data analysis, including some examples, and will show our preliminary results.

  9. Laboratory study of corrosion of steam generator tubes: Preliminary results

    Energy Technology Data Exchange (ETDEWEB)

    Sala, B.; Organista, M. [Centre Technique Framatome, Le Creusot (France). Dept. Chimie-Corrosion; Henry, K.; Erre, R. [CNRS-CRMD, Orleans (France); Gelpi, A. [Framatome, Paris la Defense (France). Dept. Materiaux et Technologies; Cattant, F.; Dupin, M. [EDF, Avoine (France)

    1995-12-31

    The secondary side intergranular attack (IGA) and intergranular stress corrosion cracking (IGSCC) of steam generator tubes often occurs in crevices where impurities are concentrated, due to local elevated temperatures and restricted water flow. From the analysis of tubes pulled from plants, it is believed that alumino-silicates deposits and/or organic species may play a role in the development of IGA in near neutral environments. New observations suggest that similar environments and similar processes are operative inside the corroded grain boundaries. A former study using autoclave tests was mainly devoted to the formation of alumino-silicate deposits similar to those observed in plants. The present work pursued the study of local environments responsible for IGA/SC. It confirms former results on the catalytic decomposition of organic species into acetates and presents more details on the mechanism of formation of alumino-silicate deposits on alloy 600, particularly on the role of iron and, to a lesser extent, nickel cations. It was showed that, under the alumino-silicate deposits and in the presence of some organic species, a non-protective chromium rich layer may grow instead of the usual protective spinel oxide. The mechanism responsible for the formation of this layer is believed to involve interaction between iron and, to a lesser extent, nickel with silica and/or possible interaction between chromium and acetates. Preliminary capsule tests indicate that these conditions may induce the initiation of IGA.

  10. Preliminary results from a crowdsourcing experiment in immunohistochemistry.

    Science.gov (United States)

    Della Mea, Vincenzo; Maddalena, Eddy; Mizzaro, Stefano; Machin, Piernicola; Beltrami, Carlo A

    2014-01-01

    Crowdsourcing, i.e., the outsourcing of tasks typically performed by a few experts to a large crowd as an open call, has been shown to be reasonably effective in many cases, like Wikipedia, the Chess match of Kasparov against the world in 1999, and several others. The aim of the present paper is to describe the setup of an experimentation of crowdsourcing techniques applied to the quantification of immunohistochemistry. Fourteen Images from MIB1-stained breast specimens were first manually counted by a pathologist, then submitted to a crowdsourcing platform through a specifically developed application. 10 positivity evaluations for each image have been collected and summarized using their median. The positivity values have been then compared to the gold standard provided by the pathologist by means of Spearman correlation. Contributors were in total 28, and evaluated 4.64 images each on average. Spearman correlation between gold and crowdsourced positivity percentages is 0.946 (p crowdsourcing for an image analysis task that is currently time-consuming when done by human experts. Crowdsourced work can be used in various ways, in particular statistically agregating data to reduce identification errors. However, in this preliminary experimentation we just considered the most basic indicator, that is the median positivity percentage, which provided overall good results. This method might be more aimed to research than routine: when a large number of images are in need of ad-hoc evaluation, crowdsourcing may represent a quick answer to the need.

  11. Stock Market Reaction to CEO Appointment – Preliminary Results

    Directory of Open Access Journals (Sweden)

    Katarzyna Byrka-Kita

    2017-06-01

    Full Text Available Purpose: The aim of this paper is to examine shareholders’ reaction to the decision of the supervisory board to appoint a CEO in companies listed on the Warsaw Stock Exchange. Methodology: An event study and the mean-adjusted model were applied. The abnormal returns were measured as the CAAR in the entire (-60, + 60 window and selected sub-windows. Findings: The obtained values of abnormal returns indicate the shareholder’s negative reaction. Throughout the observation window, they oscillate slightly below zero, and in the window (0, +20 they are negative at -1.566%. Irrespective of the observation window, negative abnormal returns were obtained for over half of the observation (52–57%. Therefore, preliminary results indicate the predominance of the information effect over the real one. The decrease in market value as a result of the event may result from an increase in investors’ uncertainty as to the effects of changes in strategy and skills of the new CEO. Originality: The research is a unique one. To date, no one has carried out research into shareholders’ reaction to a CEO appointment in either the Polish or Central and Eastern European capital markets. They primarily bring the value of cognition of shareholders’ behaviour in the analysed event, which is reflected in share prices. They extend the literature on the signalization instruments, i.e. the activities that boards can undertake due to the new information transmitted to the capital market participants and stakeholders. The market reaction to a CEO appointment will without a doubt interest investors; the institutions responsible for supervision (which in the case of Poland is the Financial Oversight Commission and the legislator in charge of regulations that prevent insider trading while promoting corporate disclosure transparency.

  12. Varfarin in the complex treatment of antiphospholipid syndrome: preliminary results

    Directory of Open Access Journals (Sweden)

    T M Reshetnyak

    2003-01-01

    Full Text Available Objective. To assess efficacy and tolerance of varfarin in prophylaxis and therapy of thrombotic complications in patients with antiphospholipid syndrome (APS. Methods. 20 pts with APS (5 male and 15 female received varfarin during a year. 8 of them had primary APS (PAPS and 12 -systemic lupus erythematosus with APS (SLE+APS. 2 other pts (I with SLE+APS and I with PAPS received varfarin during the last 4 years. Nobody from 9 pts with PAPS received corticosteroids (CS. In SLE+APS pts CS dose varied from 4 to 20 mg/day and was not increased during follow up. During the study prothrombine time (PT was examined with thromboplastin ( manufactured by Renam having international sensitivity index 1,2 and international normalization relation (INR. Depending on treatment scheme APS pts were divided into 3 groups. Group 1 included 8 pts with INR<2,0, Group 2-7 with INR >3,0, group 3 - 7 pts with INR<2,0 receiving as additional treatment thrombo ASS 100 mg/day and vasonit from 600 to 1200 mg/day. Results. Two pts with INR = 1,8 had thrombosis recurrence (due to leg thrombophlebitis. There were no recurrences in other groups. 2 from 22 pts had "large" bleedings. "Small" bleedings episodes were noted in 7 from 22 pts. Largely that were subcutaneous bleedings (in 4 pts no more than 5 cm of size. Two pts receiving varfarin with INR 1,8 and 2,4 had renal colic. Conclusion. Our preliminary results prove the necessity of inclusion of varfarin in the treatment of pts with APS and thrombosis but intensive anticoagulant effect is not always desired.

  13. New method of scoliosis assessment: preliminary results using computerized photogrammetry.

    Science.gov (United States)

    Aroeira, Rozilene Maria Cota; Leal, Jefferson Soares; de Melo Pertence, Antônio Eustáquio

    2011-09-01

    A new method for nonradiographic evaluation of scoliosis was independently compared with the Cobb radiographic method, for the quantification of scoliotic curvature. To develop a protocol for computerized photogrammetry, as a nonradiographic method, for the quantification of scoliosis, and to mathematically relate this proposed method with the Cobb radiographic method. Repeated exposure to radiation of children can be harmful to their health. Nevertheless, no nonradiographic method until now proposed has gained popularity as a routine method for evaluation, mainly due to a low correspondence to the Cobb radiographic method. Patients undergoing standing posteroanterior full-length spine radiographs, who were willing to participate in this study, were submitted to dorsal digital photography in the orthostatic position with special surface markers over the spinous process, specifically the vertebrae C7 to L5. The radiographic and photographic images were sent separately for independent analysis to two examiners, trained in quantification of scoliosis for the types of images received. The scoliosis curvature angles obtained through computerized photogrammetry (the new method) were compared to those obtained through the Cobb radiographic method. Sixteen individuals were evaluated (14 female and 2 male). All presented idiopathic scoliosis, and were between 21.4 ± 6.1 years of age; 52.9 ± 5.8 kg in weight; 1.63 ± 0.05 m in height, with a body mass index of 19.8 ± 0.2. There was no statistically significant difference between the scoliosis angle measurements obtained in the comparative analysis of both methods, and a mathematical relationship was formulated between both methods. The preliminary results presented demonstrate equivalence between the two methods. More studies are needed to firmly assess the potential of this new method as a coadjuvant tool in the routine following of scoliosis treatment.

  14. Intraspecific variability of European larch for wood properties: Preliminary results

    Energy Technology Data Exchange (ETDEWEB)

    Paques, L.E.; Rozenberg, P. [Institut National de Recherches Agronomiques (INRA), 45 - Olivet (France). Station d`Amelioration des Arbres Forestiers

    1995-12-31

    Wood properties of several natural populations of European larch (Larix decidua Mill) were determined from samples collected in one replicate of the II. International IUFRO provenance experiment, planted in Brittany in 1959. According to provenances, proportion of heartwood ranges from 35 to 58% of basal area, basic density from 442 to 505 g/dm{sup 3} and Young modulus of elasticity from 8474 to 14522 MPa. Positive correlations between girth and heartwood proportion and between wood density and modulus of elasticity but negative correlations between ring width and both density and MOE have been found both at the individual and at the population levels. Variability between and within provenances is high for two major traits (proportion of heartwood and Young modulus of elasticity) for which a SW - NE gradient is shown. For wood density parameters including pilodyn, a greater homogeneity is observed. Besides a now largely recognized superiority for growth traits, Central European populations from the Sudetan Mountains and Central Poland would also produce wood with better properties. On the reverse, Alpine populations from the French Alps growing at low elevations have a slower growth, a denser wood with less heartwood and less strength. Used as a control, the hybrid larch origin (Larix x eurolepis) represents the best compromise for wood properties with the highest strength but an average wood density and one of the highest proportion of heartwood. These preliminary results must be confirmed from a larger set of provenances and completed with other major wood properties such as durability and shrinkage. 17 refs, 2 figs, 6 tabs

  15. Preliminary Results on Polypropylene Mesh Use for Abdominal ...

    African Journals Online (AJOL)

    Background: Incisional hernia is a major surgical problem. Several methods of hernia repair have been described but their outcome has been disappointing. This preliminary retrospective study reports on our experience with polypropylene mesh repair. Methods: The technique of mesh placement on anterior rectus ...

  16. Preliminary Results From a Newly Established Behavioral Health Home

    Directory of Open Access Journals (Sweden)

    Alexandros Maragakis

    2015-05-01

    Full Text Available Objective: Individuals with serious mental illness (SMI have higher rates of preventable diseases such as diabetes in comparison to the general population. While multifaceted, these high rates of preventable diseases in the population with SMI may be partially attributed to limited access to primary care. A new program, the Behavioral Health Home (BHH, which allows for the delivery of somatic care coordination and population-based care, may provide this population with the much needed somatic coordination and education it requires. Methods: The impact of the population-based health management program of the BHH identification and severity rating of glucose metabolism disorders was assessed during the initial 10 months of the BHH. Results: Multiple patients were identified who either were not having hemoglobin A1c (HbA1c levels drawn per recommended guidelines for individuals prescribed antipsychotic medications or were within diabetic range but did not have a diagnosis of diabetes. Mixed results occurred in regard to patients’ HbA1c levels while engaging in the BHH. Conclusion: This case study provides some initial evidence for the utility of the BHH in regard to identifying patients who need preventive care.

  17. Mycodiversity in marine sediments contaminated by heavy metals: preliminary results

    Science.gov (United States)

    Zotti, Mirca; Carbone, Cristina; Cecchi, Grazia; Consani, Sirio; Cutroneo, Laura; Di Piazza, Simone; Gabutto, Giacomo; Greco, Giuseppe; Vagge, Greta; Capello, Marco

    2016-04-01

    .6 CFU per gram of sediments. The maximum value of 11 CFU g-1 has been recorded in two stations (off the Sestri Levante Tombolo), while the minimum value has been recorded closer to the coast. As concern qualitative results, the most recurrent genera are Aspergillus and Penicillium. These data confirm the occurrence of a mycobiota in these heavy metal contaminated sediments. Our preliminary results are a first contribution to the knowledge of presence of microfungi in marine sediments, and propel us to increase our research in order to find out new organisms for bioremediation purpose.

  18. Some Preliminary Scientific Results of Chang'E-3 Mission

    Science.gov (United States)

    Zou, Y.; Li, W.; Zheng, Y.; Li, H.

    2015-12-01

    Chang'E-3 mission is the main task of Phase two of China Lunar Exploration Program (CLEP), and also is Chinese first probe of landing, working and roving on the moon. Chang'E-3 craft composed of a lander and a rover, and each of them carry four scientific payloads respectively. The landing site of Chang'E-3 was located at 44.12 degrees north latitude and 19.51 degrees west longitude, where is in the northern part of Imbrium Which the distance in its west direction from the landing site of former Soviet probe Luna-17 is about 400 km, and about 780km far from the landing site of Appolo-17 in its southeast direction. Unfortunately, after a series of scientific tests and exploration on the surface of the moon, the motor controller communication of the rover emerged a breakdown on January 16, 2014, which leaded the four payloads onboard the rover can't obtain data anymore. However, we have received some interesting scientific data which have been studied by Chinese scientists. During the landing process of Chang'E-3, the Landing camera got total 4673 images with the Resolution in millimeters to meters, and the lander and rover took pictures for each other at different point with Topography camera and Panoramic camera. We can find characteristic changes in celestial brightness with time by analyzing image data from Lunar-based Ultraviolet Telescope (LUT) and an unprecedented constraint on water content in the sunlit lunar exosphere seen by LUT). The figure observed by EUV camera (EUVC) shows that there is a transient weak area of the Earth's plasma sphere; This event took place about three hours. The scientists think that it might be related to the change of the particle density of mid-latitude ionosphere. The preliminary spectral and mineralogical results from the landing site are derived according to the data of Visible and Near-infrared Imaging Spectrometer (VNIS). Seven major elements including Mg, Al, Si, K, Ca, Ti and Fe have been identified by the Active Particle

  19. Preliminary Results from SCEC Earthquake Simulator Comparison Project

    Science.gov (United States)

    Tullis, T. E.; Barall, M.; Richards-Dinger, K. B.; Ward, S. N.; Heien, E.; Zielke, O.; Pollitz, F. F.; Dieterich, J. H.; Rundle, J. B.; Yikilmaz, M. B.; Turcotte, D. L.; Kellogg, L. H.; Field, E. H.

    2010-12-01

    realistic fault geometies and slip rates taken from California, excluding the Cascadia subduction zone. In order to make as close comparisons between the simulators as possible we have developed shared data formats for both input and output and a growing set of tools that can be used to make statistical comparisons between the simulator outputs. To date all five simulators have run a Northern California fault model and are in various stages of working on an All California fault model. The plan in the near future is to run them on the UCERF2 fault model. Initial comparisons show significant differences among the simulators and some differences from observed earthquake statistics. However, it is too early in the process to infer too much from these preliminary results. For example, the differences in how each simulator treats fault friction means that they may each need to use values for the assumed stress drops that are better tuned to their approach than are the common values used in the first comparison.

  20. Functionally oriented rehabilitation program for patients with fibromyalgia: preliminary results.

    Science.gov (United States)

    Wennemer, Heidi K; Borg-Stein, Joanne; Gomba, Lorraine; Delaney, Bobbi; Rothmund, Astrid; Barlow, David; Breeze, Gail; Thompson, Anita

    2006-08-01

    To evaluate function and disability in patients with fibromyalgia before and after participation in a functionally oriented, multidisciplinary, 8-wk treatment program. A total of 23 patients who met American College of Rheumatology criteria for the diagnosis of fibromyalgia were enrolled in the study. Outcome measures included: range of motion, 6-min walk test, a modified Fibromyalgia Impact Questionnaire, a modified SF-36 Physical Functioning Scale, and the Fibromyalgia Health Assessment Questionnaire. Pretreatment and posttreatment scores were analyzed using paired t tests. All subjects completed the program, and there were no reported injuries. Three subjects failed to complete the survey instruments at the conclusion of the study. Intention to treat analysis including these subjects was carried out but did not significantly change results. For the remaining subjects (n = 20), a significant improvement was found on the Physical Functioning Scale (P = 0.01). Trends toward improvement on the Fibromyalgia Impact Questionnaire (P = 0.40) and Fibromyalgia Health Assessment Questionnaire (P = 0.14) were seen but did not achieve statistical significance. Range of motion testing revealed significant improvements in lumbar spine extension (P Borg scale did not change. There were no injuries or other adverse consequences of the program. This study utilized multiple functional outcome measures to demonstrate improved function and decreased disability in patients with fibromyalgia. Our patients reported significantly improved physical function after participation in the 8-wk intensive multidisciplinary treatment program. This progressive, functionally based exercise training program was well tolerated by all participants and outlines an effective exercise prescription for patients with fibromyalgia. Fibromyalgia patients in this study responded favorably to a treatment program that focused on function instead of pain.

  1. Metabolic syndrome in rheumatoid arthritis: role of adiponectin (preliminary results

    Directory of Open Access Journals (Sweden)

    Yulia Nikolaevna Gorbunova

    2013-01-01

    were encountered with the same frequency in early- and end-stage RA. The early RA group showed a correlation between SDAI (r = -0.34, body mass index (r = -0.41, high-density lipoprotein cholesterol (r = 0.33, erythrocyte sedimentation rate (r =-0.35, and adiponectin. The >2-year RA group displayed no relationship between adipokins, activity markers, and metabolic disturbances. Conclusion. The preliminary results suggest the high rate of MS in patients with a high level of early RA disease activity untreated with disease-modifying antirheumatic drugs, thus determining the high risk of CVEs just at disease onset. The role of adiponectin in the development of MS, CVEs in rheumatic diseases remains to be solved, which is the subject of further investigations. It is possible that normalization of adiponectin concentrations may promote reductions in the incidence of CVD, mortality rates due to atherosclerosis-induced CVEs, and the prevalence of MS and insulin resistance.

  2. Preliminary results of the PREFER FP7 Project

    Science.gov (United States)

    Fusilli, Lorenzo; Laneve, Giovanni; De Bonis, Roberto; Sebastian, Ana; Ferrucci, Fabrizio; Oliveira, Sandra

    2014-05-01

    The need to improve the information and intelligence support for forest fire prevention is widely recognized. Fire prevention is still the most cost-effective strategy when compared to firefighting and extinguishing that are costly, local, and triggered only in response to already ongoing crises. PREFER project, funded under the EU FP7 (G.A. 312931), intends to contribute at responding to such a pragmatic need of southern Europe's forests by: providing timely information products based on the exploitation of all available spacecraft sensors, offering a portfolio of products focused on pre- and post-crisis forest fire emergency, suitable for the users in the different countries of the European Mediterranean area. The PREFER Service portfolio consists of two main services: 1. Information Support to Fire Preparedness/Prevention Phase" (ISP) Service 2. Information Support to Fire Recovery/Reconstruction Phase" (ISR) Service This service is already at an advanced stage having completed the first year of activity. During this time several products have been consolidated: seasonal fuel maps; daily and seasonal fire hazard maps; seasonal risk maps; prescribed fire maps. This paper aims at presenting the preliminary results of the research activity carried out in the framework of the PREFER project, focusing, in particular, on these recalled above. As for Fire Risk and Hazard assessment, many indexes have been developed in the last years. Hardly any of them uses data derived from satellite images. The FPI index is an exception to this rule which, in addition, makes use of meteorological data. In spite of being a very complete index, the FPI still allows room for improvement which justify the interest of PREFER in it. PREFER's innovative approach to FPI will allow taking into account the effect of solar illumination conditions in determining the humidity present in the dead vegetation, and therefore its proneness to burn. PREFER innovation also focus in allowing the index to

  3. Preliminary results about Electrodeposition of Cobalt at laboratory level

    International Nuclear Information System (INIS)

    Cornejo, N.

    1992-01-01

    As of an organic compound, an extraction and Cobalt electrodeposition method had been developed as a part of fabrication aim of a sealed radioactive source with objective to the construction of density meter prototype. It was performed preliminary test of electrodeposition in the laboratory level in a simple cell. The used electrolyte had been a sulphate solution obtained by extraction of an organic solution. It is obtained a Co film by electrodeposition at 55 o C temperature and with an approximately Co concentration in 70 g/lt. (Author) 3 refs., 1 fig., 1 tab

  4. Paleomagnetic dating of ferricretes in New Caledonia. Preliminary results.

    Science.gov (United States)

    Sevin, Brice; Ricordel-Prognon, Caroline; Quesnel, Florence; Cluzel, Dominique; Maurizot, Pierre; Robineau, Bernard

    2010-05-01

    Although the description of the emplacement (Cluzel et al., 2001) and the weathering (Trescases, 1975; Latham, 1986; Chevillotte et al., 2006) of the New Caledonia peridotites is well documented in the literature, the knowledge and the age of formation of the landsurfaces formed upon the ultrabasic massifs are poorly documented. Several surfaces have been recognised along the island but no reliable ages could be attributed to the associated regolith. In fact, the overthrust of the Ophiolitic Nappe in the South is stratigraphically constrained by a younger autochthonous olistostrom dated by Late Priabonian pelagic foraminifera (Cluzel et al., 1998). The supergene weathering being still active, the beginning of the ferruginisation of the various plateaux is not well constrained and estimated to have occurred between 34 Ma and Actual. The processes of absolute dating are not relevant to these weathering profiles (K-Mn oxides are poorly concentrated). Ferricretes and various ferruginous materials have the potential to record the ancient geomagnetic field providing means of age determination. In tropical soils, most of the primary remanence carring minerals are dissolved during weathering and secondary magnetic minerals, such as goethite and haematite, are formed in situ acquiring a crystallisation (or chemical) remanent magnetization (CRM). The paleomagnetic pole recovered by demagnetizing the CRMs are plotted on the local apparent polar wandering (APWP) reference curve providing an age for the different parts of the paleoweathering profiles. The data and interpretations we present here are based on paleomagnetic analysis of ferricretes of Goro and Tiebaghi. The preliminary results suggest, for the first time ever, well constrained ages between 20 and 25 Ma of major ferruginisation stages of the peridotites of New Caledonia. References Chevillotte V., Chardon D., Beauvais A, Maurizot P. & Colin F. (2006). Long-term tropical morphogenesis of New Caledonia (Southwest

  5. WISE/NEOWISE OBSERVATIONS OF THE JOVIAN TROJANS: PRELIMINARY RESULTS

    International Nuclear Information System (INIS)

    Grav, T.; Mainzer, A. K.; Bauer, J.; Masiero, J.; Eisenhardt, P. R. M.; Blauvelt, E.; DeBaun, E.; Elsbury, D.; Gautier, T. IV; Gomillion, S.; Hand, E.; Wilkins, A.; Spahr, T.; McMillan, R. S.; Walker, R.; Cutri, R.; Wright, E.

    2011-01-01

    We present the preliminary analysis of over 1739 known and 349 candidate Jovian Trojans observed by the NEOWISE component of the Wide-field Infrared Survey Explorer (WISE). With this survey the available diameters, albedos, and beaming parameters for the Jovian Trojans have been increased by more than an order of magnitude compared to previous surveys. We find that the Jovian Trojan population is very homogenous for sizes larger than ∼10 km (close to the detection limit of WISE for these objects). The observed sample consists almost exclusively of low albedo objects, having a mean albedo value of 0.07 ± 0.03. The beaming parameter was also derived for a large fraction of the observed sample, and it is also very homogenous with an observed mean value of 0.88 ± 0.13. Preliminary debiasing of the survey shows that our observed sample is consistent with the leading cloud containing more objects than the trailing cloud. We estimate the fraction to be N(leading)/N(trailing) ∼ 1.4 ± 0.2, lower than the 1.6 ± 0.1 value derived by Szabó et al.

  6. Preliminary evaluation of the applicability of F, V and AEsignals in diagnosis of ADI machining process

    Directory of Open Access Journals (Sweden)

    Myszka D.

    2014-03-01

    Full Text Available In this study, a preliminary evaluation was made of the applicability of the signals of the cutting forces, vibration and acoustic emission in diagnosis of the hardness and microstructure of ausferritic ductile iron and tool edge wear rate during its machining. Tests were performed on pearlitic-ferritic ductile iron and on three types of ausferritic ductile iron obtained by austempering at 400, 370 and 320°C for 180 minutes. Signals of the cutting forces (F, vibration (V and acoustic emission (AE were registered while milling each type of the cast iron with a milling cutter at different degrees of wear. Based on individual signals from all the sensors, numerous measures were determined such as e.g. the average or maximum signal value. It was found that different measures from all the sensors tested depended on the microstructure and hardness of the examined material, and on the tool condition. Knowing hardness of the material and the cutting tool edge condition, it is possible to determine the structure of the material .Simultaneous diagnosis of microstructure, hardness, and the tool condition is probably feasible, but it would require the application of a diagnostic strategy based on the integration of numerous measures, e.g. using neural networks.

  7. Correlation of laboratory result and clinical diagnosis of ...

    African Journals Online (AJOL)

    Malaria remains a major cause of morbidity and mortality especially among children. While early diagnosis and prompt treatment are crucial to its control, anecdotal evidence has shown that there is increasing overdiagnosis of the illness. This study therefore aims to compare the outcome of laboratory and clinical diagnosis ...

  8. Seismic Hazard Maps for the Maltese Archipelago: Preliminary Results

    Science.gov (United States)

    D'Amico, S.; Panzera, F.; Galea, P. M.

    2013-12-01

    The Maltese islands form an archipelago of three major islands lying in the Sicily channel at about 140 km south of Sicily and 300 km north of Libya. So far very few investigations have been carried out on seismicity around the Maltese islands and no maps of seismic hazard for the archipelago are available. Assessing the seismic hazard for the region is currently of prime interest for the near-future development of industrial and touristic facilities as well as for urban expansion. A culture of seismic risk awareness has never really been developed in the country, and the public perception is that the islands are relatively safe, and that any earthquake phenomena are mild and infrequent. However, the Archipelago has been struck by several moderate/large events. Although recent constructions of a certain structural and strategic importance have been built according to high engineering standards, the same probably cannot be said for all residential buildings, many higher than 3 storeys, which have mushroomed rapidly in recent years. Such buildings are mostly of unreinforced masonry, with heavy concrete floor slabs, which are known to be highly vulnerable to even moderate ground shaking. We can surely state that in this context planning and design should be based on available national hazard maps. Unfortunately, these kinds of maps are not available for the Maltese islands. In this paper we attempt to compute a first and preliminary probabilistic seismic hazard assessment of the Maltese islands in terms of Peak Ground Acceleration (PGA) and Spectral Acceleration (SA) at different periods. Seismic hazard has been computed using the Esteva-Cornell (1968) approach which is the most widely utilized probabilistic method. It is a zone-dependent approach: seismotectonic and geological data are used coupled with earthquake catalogues to identify seismogenic zones within which earthquakes occur at certain rates. Therefore the earthquake catalogues can be reduced to the

  9. Preliminary Cluster Size and Efficiencies results of CMS RPC at GIF++

    CERN Document Server

    Gonzalez Blanco Gonzalez, Genoveva

    2016-01-01

    A brief description and first preliminary results of the Efficiencies and Cluster Size measurements of the CMS Resistive Plate Chambers, will be presented inside the Gamma Irradiation Facility GIF++ at CERN. Preliminary studies that sets the base performance measurements of CMS RPC for starting aging studies.

  10. Immersive virtual environment for visuo-vestibular therapy: preliminary results.

    Science.gov (United States)

    Gascuel, J D; Payno, H; Schmerber, S; Martin, O

    2012-01-01

    The sense of equilibrium aggregates several interacting cues. On vestibular areflexic patients, vision plays a major role. We developed an immersive therapeutic platform, based on 3D opto-kinetic stimulation that enables to tune the difficulty of the balance task by managing the type of optic flow and its speed. The balance adjustments are recorded by a force plate, quantified by the length of the center of pressure trajectory and detection of disequilibrium corrections (leans, compensation step). Preliminary analysis shows that (i) patients report a strong immersion feeling in the motion flow, triggering intense motor response to "fight against fall"; (ii) the ANOVA factorial design shows a significant effect of flow speed, session number and gaze anchor impact. In conclusion, this study shows that 3D immersive stimulation removes essential limits of traditional opto-kinetic stimulators (limited 2D motions and remaining fixed background cues). Moreover, the immersive optic flow stimulation is an efficient tool to induce balance adaptive reactions in vestibular patients. Hence, such a platform appears to be a powerful therapeutic tool for training and relearning of balance control processes.

  11. Preliminary Results of Management for Primary CNS Lymphoma

    Energy Technology Data Exchange (ETDEWEB)

    Ahn, Seung Do; Chang, Hye Sook; Choi, Eun Kyong [Ulsan University College of Medicine, Seoul (Korea, Republic of)

    1993-06-15

    From October 1989 to March 1992, ten patients diagnosed as primary central nervous system(CNS) lymphoma were treated with radiation therapy at Asan Medical Center. To obtain pathologic diagnosis, five patients had stereotactic biopsy and the others underwent craniotomy and tumor removal. According to the classification by International Working Formulation, seven of 10 patients showed diffuse large cell types and the remaining 3 had diffuse mixed cell types. Computed tomographic scans of the brain disclosed solitary (6 cases) or multiple (4 cases) intracranial lesions. All patients received 4000cGy/20 fx to the whole brain followed by an additional 2000cGy/10 fx boost to the primary lesion. Six patients with initial cerebrospinal fluid (CSF) involvement were treated with whole brain irradiation and intrathecal Methotrexate(IT-MTX) chemotherapy. One of them received an additional spinal irradiation after 3 cycles of IT-MTX chemotherapy because of MTX induced arachnoiditis. One patient received 3 cycles of systemic chemotherapy prior to radiation therapy and one received 5 cycles of salvage chemotherapy for recurrence. With a median follow up time of 8 months, all patients were followed from 7 to 26 months. Radiologically seven patients showed complete remission and the remaining three showed partial remission at one month after radiotherapy. The 1 and 2 year survival rate was 86% and 69% respectively. Until now, two patients expired at 7 and 14 months. These patients developed extensive CSF seeding followed by local failure. Considering initial good response to radiation therapy and low incidence of extraneural dissemination in primary CNS lymphoma, we propose to increase total tumor dose to the primary lesion by hyperfractionated radiotherapy or stereotactic radiosurgery. For the patients with CSF involvement at diagnosis, we propose craniospinal irradiation with IT MTX chemotherapy.

  12. Preliminary Results on Sediment Sorting Under Intense Bedload Transport

    Science.gov (United States)

    Hernandez Moreira, R. R.; Vautin, D.; Mathews, S. L.; Kuprenas, R.; Viparelli, E.

    2014-12-01

    Previous experiments show that parallel-laminated deposits are emplaced under upper plane bed regime by the migration of small-amplitude, long-wavelength bedforms. The present research focuses on how sediment is sorted under upper plane bed and sheet flow transport regimes, and whether parallel-lamination is inhibited during sheet flow transport. The problem of studying the sorting of sediment under so intense transport conditions is plagued by the uncertainties related to flow resistances and bedload transport rates. We simplify the problem by first running the experiments with uniform sediment, to establish a baseline that will aid in the design of the experiments with poorly sorted material. We are running experiments at the Hydraulics Laboratory of the Department of Civil and Environmental Engineering at the University of South Carolina in Columbia, in a unidirectional sediment-feed flume, 9 meters long by 0.2 meters wide, of which 7 meters are used as test section. During the experiments, water surface and bed elevations are periodically measured to characterize the global parameters of the flow, e.g. mean flow velocity and bed shear stress. When the flow and the sediment transport reach conditions of mobile bed equilibrium, bed elevation fluctuations are measured with ultrasonic transducer systems at six fixed locations. Channel bed aggradation is then induced by slowly raising the tail gate of the flume such that there is no change in transport regime, as confirmed by additional measurements of water surface and bed elevation and bed elevation fluctuations. Preliminary observations under upper plane bed regime show the formation of the small-amplitude and long-wavelength bedforms, as well as hints of parallel lamination in the deposits. In the near future we aim to achieve sheet flow transport conditions with both uniform and non-uniform grain size distributions to look at the internal structure of the emplaced deposit.

  13. Preliminary Result of Geophysical Some Studieson the Nariinsukhait Coal Deposit

    Science.gov (United States)

    Norov, B.; Purevjav, N.; Roy, D. K., Sr.

    2017-12-01

    Nariinsukhait coal deposit has a strategic importance on Mongolian national economic development. The deposit is located in Gurvan-tes of the Umnu-gobi province, as 849 km south-west away from Ulaanbaatar. The deposit in geographically, belongs to Gobi Altai region region of the Altai mountain region. The area contains Permian, Cretaceous, Jurassic, Triassic age of sediments. Sediments are red or sedimentary cover on some part of area (Minjin. Ch., Batnyam. D., Rentsendorj. S (Baatarkhuyag. A., Altantsetseg. D., 2015). The coal deposit is located in the center portion of the Nariinsukhait basin. The age of coal hosted sedimentary rock is Jurassic estimated by Paleo-botanic methodology, using examination of a total 59 kind of plants, 288 pollen grains (Baatarkhuyag. A., Altantsetseg. D., 2015). The thickness of coal hosted sedimentary sequence is approximately 1105.5m and named as Orgilohbulag formation. In case of geophysical exploration, preliminary interpretation of the coal basin has been done by 3 geophysical methodologies which commonly applying during exploration stage of coal. The interpretations are given below. Natural Gamma Sonde /NGRS 4140/: use to determine natural gamma activation on rock by radionuclides content (238U; 235U; 232Th; 40K). During measurements well contrasted coal bedding and, value indicate between 0-15cps. And depending on the rock type it has been changed, in case of siltstone, argillite, conglomerate value fluctuated between 15-40cps. However, those rocks natural gamma values are difference little, therefore not showing much contrast between rock types. Formation Density Sonde Version B /FDSB 4036/: The Nariinsukhait coal deposit Open holes and protective pipes of density is 0.5-1.5 g/cm3, 1.2-2.3 g/cm3 respectively. Not well contrasted during measurement due to some of sedimentary rock density range is so low as such sandstone, siltstone, and conglomerate. Therefore, applied resistivity methodology and done interpretation. DLL3

  14. Magnetotelluric investigation across the Agri Valley: preliminary results.

    Science.gov (United States)

    Balasco, Marianna; Romano, Gerardo; Siniscalchi, Agata; Alfredo Stabile, Tony

    2017-04-01

    The Agri Valley is an axial zone of the Southern Apennines thrust belt chain with a strong seismogenic potential where two important energy technologies responsible for inducing/triggering seismicity are active: (1) the disposal at the Costa Molina 2 injection well of the wastewater produced during the exploitation of the biggest onshore oil field in west Europe (27 wells producing more than 80,000 barrels of crude oil per day), managed by the Eni S.p.A., and (2) the water loading and unloading operations in the Pertusillo artificial reservoir. It is recognized the possibility that the fluctuation of the water level inside the reservoir, due to the hydrological cycle for example, produces pressure perturbations at the bottom of reservoir, causing induced seismicity. Furthermore it is even more known the role of fluids in the rupture processes which could cause an increase of pore pressure specially at high rate of injection fluids and/or for the presence of weakening of preexisting faults. With the aim to better characterize and understand the physical processes involved in the observed induced/triggered seismicity, in 2016 a broadband seismic network, covering an area of about 20 km x 20 km nearby the Pertusillo Dam and Costa Molina2 well has been installed in the framework of SIR-MIUR project INSIEME (INduced Seismicity in Italy: Estimation, Monitoring, and sEismic risk mitigation) and a MagnetoTelluric (MT) survey has been performed. The MT investigation consists of 25 soundings aligned along 30 km profile oriented at about N40 direction, orthogonal with the strike of the major and noticeable geological structures and crossing both of the source that may induce/trigger seismicity. In this work, we present the preliminary 2D resistivity model which provides useful deep geophysical information for understanding the geological and structural setting of the Agri Valley. Moreover, the comparison of the resistivity model with the earthquake location as inferred from

  15. [Management of cytostatic drugs by nurses: analysis of preliminary results].

    Science.gov (United States)

    Bilski, Bartosz

    2004-01-01

    Cytostatic drugs pose a quite specific occupational risk to health care workers. There is a wide range of potential harmful effects, including remote effects, exerted by this group of drugs. In Polish and international regulations, standards of work safety and hygiene concerning these substances are clearly defined. Nevertheless working conditions in Polish health care institutions are now mostly influenced by economic and organizational problems, which may also be reflected in the compliance with the work safety rules. This paper presents a preliminary analysis of subjective assessment of practice with regard to the management of cytostatics reported by nurses, an occupational group mostly exposed to these substances. The study was carried out at hospital departments in the Warmińsko-Mazurskie Voivodship, where exposure of the staff to these drugs was observed. The study covered the whole nursing staff exposed. Completed questionnaires were obtained from 60 nurses, aged +/- 32 years (20-54 years) with job seniority +/- 8 years (2-18), including 58 nurses with secondary education and two university graduates. Undergraduate education did not develop in respondents skills to work with cytostatics. There is a need to increase the involvement of nursing schools, research institutes and teaching hospitals in the improvement of vocational training of nurses working with cytostatic drugs. To this end, all nurses should be covered with the obligatory training how to handle this group of drugs. The respondents reported that they had acquired their knowledge and experience of managing cytostatics in their work and during training organized at workplace. Despite the acquired knowledge and experience the interviewed nurses did not always comply with work safety and hygiene regulations. The problem of exposure to cytostatic drugs in the form of tablets was most frequently neglected. Some of the nurses were additionally exposed to ionizing radiation. Shortage of the nursing

  16. A Morphing Technique Applied to Lung Motions in Radiotherapy: Preliminary Results

    Directory of Open Access Journals (Sweden)

    R. Laurent

    2010-01-01

    Full Text Available Organ motion leads to dosimetric uncertainties during a patient’s treatment. Much work has been done to quantify the dosimetric effects of lung movement during radiation treatment. There is a particular need for a good description and prediction of organ motion. To describe lung motion more precisely, we have examined the possibility of using a computer technique: a morphing algorithm. Morphing is an iterative method which consists of blending one image into another image. To evaluate the use of morphing, Four Dimensions Computed Tomography (4DCT acquisition of a patient was performed. The lungs were automatically segmented for different phases, and morphing was performed using the end-inspiration and the end-expiration phase scans only. Intermediate morphing files were compared with 4DCT intermediate images. The results showed good agreement between morphing images and 4DCT images: fewer than 2 % of the 512 by 256 voxels were wrongly classified as belonging/not belonging to a lung section. This paper presents preliminary results, and our morphing algorithm needs improvement. We can infer that morphing offers considerable advantages in terms of radiation protection of the patient during the diagnosis phase, handling of artifacts, definition of organ contours and description of organ motion.

  17. Preliminary results of a test of a longitudinal phase-space monitor

    International Nuclear Information System (INIS)

    Kikutani, Eiji; Funakoshi, Yoshihiro; Kawamoto, Takashi; Mimashi, Toshihiro

    1994-01-01

    A prototype of a longitudinal phase-space monitor has been developed in TRISTAN Main Ring at KEK. The principle of the monitor and its basic components are explained. Also a result of a preliminary beam test is given. (author)

  18. Sonography of pleural space in healthy pregnants - preliminary results:

    OpenAIRE

    Kocijančič, Igor

    2005-01-01

    Background. The purpose of our study was to determine the incidence of sonographically visible normal pleural fluid finding in healthy pregnants. Methods. Chest sonography was performed in 47 pregnant volunteers, searching for pleural fluid, first leaning on the elbow and than in a sitting position. 9-12 MHz linear probe was used. If the result of the first examination was positive (at least 2 mm thick anechoic layer), we repeated the procedure with 3-6 MHz large radius convex probe. Results....

  19. New preliminary results on the physics of charm hadroproduction subprocesses

    International Nuclear Information System (INIS)

    Appel, J.A.

    1994-10-01

    This paper reviews the results and physics of two contributed papers to ICHEP94. Both papers relate to charm meson hadroproduction at Fermilab fixed target energies. The first (from E769) addresses the total forward cross section for charm mesons (D ± and D s ± ) produced by π ± , K ± , and proton beams. The second paper (from E791) deals with the asymmetries in the differential cross sections for charged D mesons produced in the forward direction by π - beam. The physics most directly related to the results of the E769 paper are the gluon distributions in the incident hadrons as well as perturbative QCD calculations of charm quark production and the charm quark mass. The E791 results address the details of the hadronization process after production of the charm quarks

  20. New preliminary results on the physics of charm hadroproduction subprocesses

    Energy Technology Data Exchange (ETDEWEB)

    Appel, J.A

    1994-10-01

    This paper reviews the results and physics of two contributed papers to ICHEP94. Both papers relate to charm meson hadroproduction at Fermilab fixed target energies. The first (from E769) addresses the total forward cross section for charm mesons (D{sup {plus_minus}} and D{sub s}{sup {plus_minus}}) produced by {pi}{sup {plus_minus}}, K{sup {plus_minus}}, and proton beams. The second paper (from E791) deals with the asymmetries in the differential cross sections for charged D mesons produced in the forward direction by {pi}{sup {minus}} beam. The physics most directly related to the results of the E769 paper are the gluon distributions in the incident hadrons as well as perturbative QCD calculations of charm quark production and the charm quark mass. The E791 results address the details of the hadronization process after production of the charm quarks.

  1. Preliminary results of the analysis of the BATSE TTE data

    Science.gov (United States)

    Horváth, I.; Norris, J. P.; Scargle, J. D.; Balázs, L. G.

    2005-05-01

    The Compton Gamma Ray Observatory (CGRO) observed many types of data and one of them is the time-tagged photon events (TTE data). We use the Bayesian block analysis, using Bayesian statistics, analyses the TTE data. Our results; calculations of duration (T100), count rates (burst photon numbers in different channels) and count peaks (in 64, 16 and 4ms). We present the duration, the peak duration and the distance between peaks distributions. Principal Component Analysis (PCA) has been also applied. The PCA shows interesting results, such as channel 4 (highest energy channel) probably is very important.

  2. Family Characteristics of Anxious ADHD Children: Preliminary Results

    Science.gov (United States)

    Kepley, Hayden O.; Ostrander, Rick

    2007-01-01

    Objective: To investigate the family environments of children in a community sample with ADHD and co-occurring anxiety. Method: Family Environment Scale, Behavioral Assessment System for Children, and Structured Clinical Interview are administered to parents of children with ADHD with and without anxiety. Results: ADHD families are uniformly less…

  3. Preliminary results of standard quantitative analysis by ED-XRF

    International Nuclear Information System (INIS)

    Lara, Alessandro L. de; Franca, Alana C.; Neto, Manoel R.M.; Paschuk, Sergei A.

    2013-01-01

    A comparison between the results of elemental concentration proposed by XRS-FP software , using data obtained by EDXRF technique with those obtained by stoichiometric calculation was performed. For this purpose, five standard samples of known compounds were produced: two lead- oxide, magnesium chloride and iodine in controlled amounts. The compounds were subsequently mixed and compressed to form tablets. The samples were irradiated in three endpoints, according to an orientation. The measurements were performed at the Laboratory for Radiological UTFPR using X-123SDD the Amptek detector and X-ray tube with silver target from the same manufacturer. The operating conditions tube were 05μA current to a 40 kV voltage. Finally, the 15 spectra analyzed with the software to determine the concentration of chlorine, iodine and lead. Data from this analysis were compared with results expected in stoichiometric calculations. The data provided by the program, a convergence of results, indicating homogeneity of the samples was found. Compared to the stoichiometric calculation, a considerable discrepancy that may be the result of a misconfiguration or contamination of the sample was found. At the end, we created a proposal for continuation of the work using an auxiliary calculation should be developed in the next step

  4. Multiaxial fatigue of aluminium friction stir welded joints: preliminary results

    Directory of Open Access Journals (Sweden)

    D. G. Hattingh

    2015-07-01

    Full Text Available The aim of the present research is to check the accuracy of the Modified Wöhler Curve Method (MWCM in estimating the fatigue strength of friction stir (FS welded tubular joints of Al 6082-T6 subjected to in-phase and out-of-phase multiaxial fatigue loading. The welded samples being investigated were manufactured by equipping an MTS I-STIR process development system with a retracting tool that was specifically designed and optimised for this purpose. These specimens were tested under proportional and non-proportional tension and torsion, the effect of non-zero mean stresses being also investigated. The validation exercise carried out by using the generated experimental results allowed us to prove that the MWCM (applied in terms of nominal stresses is highly accurate in predicting the fatigue strength of the tested FS welded joints, its usage resulting in estimates falling with the uniaxial and torsional calibration scatter bands.

  5. Impediments to Marketing African Natural products From Ghana: Preliminary Results

    OpenAIRE

    Govindasamy, Ramu; Onyango, Benjamin M.; Puduri, Venkata S.; Simon, James E.; Asante-Dartey, Juliana; Arthur, Hanson; Diawuo, Bismarck; Acquaye, Dan

    2006-01-01

    For most of the African countries agriculture still remains the mainstay of the economies supplying both food and incomes via marketable surpluses. However, many odds against agriculture such low productivity, poor prices, and drought among others make it unsustainable. Results thus far show that such dependence has contributed little to neither economic development nor growth. Still many of its people living on and from agriculture remain poor, and are susceptible to hunger and malnutrition....

  6. Deformed Reality: Proof of concept and preliminary results

    OpenAIRE

    Haouchine , Nazim; Petit , Antoine; Roy , Frederick; Cotin , Stéphane

    2017-01-01

    International audience; We introduce " Deformed Reality " , a new paradigm to interactively manipulate objects in a scene in a deformable manner. Using the core principle of augmented reality to estimate rigid pose over time, our method enables the user to deform the targeted object while it is being rendered with its natural texture, giving the sense of a real-time object editing in user environment. The presented results show that our method can open new ways of using augmented reality by n...

  7. Preliminary Results form the Japanese Total Lightning Network

    Science.gov (United States)

    Hobara, Y.; Ishii, H.; Kumagai, Y.; Liu, C.; Heckman, S.; Price, C. G.; Williams, E. R.

    2015-12-01

    We report on the initial observational results from the first Japanese Total Lightning Detection Network (JTLN) in relation to severe weather phenomena. The University of Electro-Communications (UEC) has deployed the Earth Networks (EN) Total Lightning System over Japan to carry out research on the relationship between thunderstorm activity and severe weather phenomena since 2013. In this paper we first demonstrate the current status of our new network followed by the initial scientific results. The lightning jump algorithm was applied to our total lightning data to study the relationship between total lighting activity and hazardous weather events such as gust fronts and tornadoes over land reported by the JMA (Japanese Meteorological Agency) in 2014. As a result, a clear increase in total lighting flash rate as well as lightning jumps are observed prior to most hazardous weather events (~20 min) indicating potential usefulness for early warning in Japan. Furthermore we are going to demonstrate the relationship of total lightning activities with meteorological radar data focusing particularly on Japanese Tornadic storms.

  8. A preliminary study of breast cancer diagnosis using laboratory based small angle x-ray scattering

    International Nuclear Information System (INIS)

    Round, A R; Wilkinson, S J; Hall, C J; Rogers, K D; Glatter, O; Wess, T; Ellis, I O

    2005-01-01

    Breast tissue collected from tumour samples and normal tissue from bi-lateral mastectomy procedures were examined using small angle x-ray scattering. Previous work has indicated that breast tissue disease diagnosis could be performed using small angle x-ray scattering (SAXS) from a synchrotron radiation source. The technique would be more useful to health services if it could be made to work using a conventional x-ray source. Consistent and reliable differences in x-ray scatter distributions were observed between samples from normal and tumour tissue samples using the laboratory based 'SAXSess' system. Albeit from a small number of samples, a sensitivity of 100% was obtained. This result encourages us to pursue the implementation of SAXS as a laboratory based diagnosis technique

  9. A preliminary study of breast cancer diagnosis using laboratory based small angle x-ray scattering

    Science.gov (United States)

    Round, A. R.; Wilkinson, S. J.; Hall, C. J.; Rogers, K. D.; Glatter, O.; Wess, T.; Ellis, I. O.

    2005-09-01

    Breast tissue collected from tumour samples and normal tissue from bi-lateral mastectomy procedures were examined using small angle x-ray scattering. Previous work has indicated that breast tissue disease diagnosis could be performed using small angle x-ray scattering (SAXS) from a synchrotron radiation source. The technique would be more useful to health services if it could be made to work using a conventional x-ray source. Consistent and reliable differences in x-ray scatter distributions were observed between samples from normal and tumour tissue samples using the laboratory based 'SAXSess' system. Albeit from a small number of samples, a sensitivity of 100% was obtained. This result encourages us to pursue the implementation of SAXS as a laboratory based diagnosis technique.

  10. A preliminary study of breast cancer diagnosis using laboratory based small angle x-ray scattering

    Energy Technology Data Exchange (ETDEWEB)

    Round, A R [Daresbury Laboratories, Warrington, WA4 4AD (United Kingdom); Wilkinson, S J [Daresbury Laboratories, Warrington, WA4 4AD (United Kingdom); Hall, C J [Daresbury Laboratories, Warrington, WA4 4AD (United Kingdom); Rogers, K D [Department of Materials and Medical Sciences, Cranfield University, Swindon, SN6 8LA (United Kingdom); Glatter, O [Department of Chemistry, University of Graz (Austria); Wess, T [School of Optometry and Vision Sciences, Cardiff University, Cardiff CF10 3NB, Wales (United Kingdom); Ellis, I O [Nottingham City Hospital, Nottingham (United Kingdom)

    2005-09-07

    Breast tissue collected from tumour samples and normal tissue from bi-lateral mastectomy procedures were examined using small angle x-ray scattering. Previous work has indicated that breast tissue disease diagnosis could be performed using small angle x-ray scattering (SAXS) from a synchrotron radiation source. The technique would be more useful to health services if it could be made to work using a conventional x-ray source. Consistent and reliable differences in x-ray scatter distributions were observed between samples from normal and tumour tissue samples using the laboratory based 'SAXSess' system. Albeit from a small number of samples, a sensitivity of 100% was obtained. This result encourages us to pursue the implementation of SAXS as a laboratory based diagnosis technique.

  11. Dual-Energy Perfusion-CT in Recurrent Pancreatic Cancer - Preliminary Results.

    Science.gov (United States)

    Fritz, F; Skornitzke, S; Hackert, T; Kauczor, H U; Stiller, W; Grenacher, L; Klauss, M

    2016-06-01

    after pancreatic cancer resection.• While reliable differentiation of unspecific postoperative tissue formation from recurrent malignancy cannot be achieved yet, it is within reach.• DE Perfusion CT has the potential to overcome todays limitations of pure morphological diagnosis of recurrent pancreatic cancer. Citation Format: • Fritz F, Skornitzke S, Hackert T et al. Dual-Energy Perfusion-CT in Recurrent Pancreatic Cancer - Preliminary RESULTS. Fortschr Röntgenstr 2016; 188: 559 - 565. © Georg Thieme Verlag KG Stuttgart · New York.

  12. Preliminary results of the 249Cf + 48Ca experiment

    International Nuclear Information System (INIS)

    Patin, J B; Moody, K J; Stoyer, M A; Wild, J F; Shaughnessy, D A; Stoyer, N J

    2003-01-01

    The results of a detailed analysis performed on the data obtained in the 249 Cf + 48 Ca bombardment is presented. This analysis is independent of the original data analysis performed in Dubna in which two possible decay chains were found. The first decay chain consisted of an evaporation residue implantation followed by two alpha decays and then a spontaneous fission. The second decay chain consisted of an evaporation residue implantation followed by an immediate spontaneous fission event. This analysis confirms that the two interesting events are present in the data. A summary of the two events will be given as well as a description of the analysis performed

  13. Preliminary results from a shallow water benthic grazing study

    Science.gov (United States)

    Jones, N.L.; Monismith, Stephen G.; Thompson, Janet K.

    2005-01-01

    The nutrient-rich, shallow waters of San Francisco Bay support high rates of primary production, limited not by nutrients but by light availability and benthic grazing (Alpine and others 1992; Cloern 1982). Phytoplankton blooms are an important food source for upper trophic levels. Consequently animal populations, such as fish, may suffer under conditions of high benthic bivalve grazing. It has been hypothesized that several species of fish are suffering as a result of severe decreases in available phytoplankton since the introduction of Potamocorbula amurensis into San Francisco Bay (Feyrer 2003).

  14. Status and preliminary results of the ANAIS experiment at Canfranc

    International Nuclear Information System (INIS)

    Cebrian, S.; Amare, J.; Carmona, J.M.; Garcia, E.; Irastorza, I.G.; Luzon, G.; Morales, A.; Morales, J.; Ortiz de Solorzano, A.; Puimedon, J.; Sarsa, M.L.; Villar, J.A.

    2002-01-01

    ANAIS (Annual Modulation with NaI's) is an experiment planned to investigate seasonal modulation effects in the signal of galactic WIMPs using up to 107 kg of NaI(Tl) in the Canfranc Underground Laboratory (Spain). A prototype using one single crystal (10.7 kg) is being developed before the installation of the complete experiment; the first results presented here show an average background level of 1.2 counts/(keV kg day) from threshold (E thr ∼ 4 keV) up to 10 keV

  15. Robot-assisted radical prostatectomy in Brazil: preliminary results

    Directory of Open Access Journals (Sweden)

    Jose Roberto Colombo Junior

    2009-12-01

    Full Text Available Purpose: To report the initial experience on robot-assisted radical prostatectomy in Brazil. Methods: From March 2008 to March 2009, a hundred patients were treated with robot-assisted radical prostatectomy. Patient’s demographic data, as well as perioperative results of the procedures, are described in this study. Rresults: Patients’ mean age and mean PSA were 58 years and 7.58 ng/ml, respectively. All procedures were performed through transperitoneal approach, with a mean bleeding of 480 mL and surgical time of 298 minutes. A surgical margin affected by cancer was present in 16% of the cases. There were four complications: bleeding requiring transfusion (two cases, rectal perforation corrected on the spot and inadequate functioning of the robot. There was no conversion to another access or obit occurrences in this caseload. Cconclusions: Robot-assisted prostatectomy is a reality in Brazil and the results herein presented demonstrate that this procedure can be safely performed. Long-term follow-up is still necessary to assess the oncological and functional outcomes.

  16. Preliminary results for prone-position breast irradiation

    International Nuclear Information System (INIS)

    Mahe, Marc-Andre; Classe, Jean-Marc; Dravet, Francois; Cussac, Agnes; Cuilliere, Jean-Claude

    2002-01-01

    Purpose: To evaluate an alternative prone-position technique for breast irradiation after conservative surgery. Methods and materials: A plexiglas platform with a circular opening for the breast and a double 30 deg. craniocaudal and 10 deg. transverse (left-right for the right breast and right-left for the left breast) slope was evaluated for positioning, the possible use of CT, and dosimetric study in 35 patients with large pendulous breasts who were likely to benefit from irradiation of the breast alone after conservative surgery. Results: The positioning was excellent for all but 3 obese patients who could not achieve adequate prolonged immobilization. The platform height and position made it possible to obtain CT in the other 32 patients. Three-dimensional dosimetry revealed that 85 deg. and 265 deg. angles of the tangential fields for the right breast and 275 deg. and 95 deg. angles for the left breast were adequate for all patients. The use of 4 or 6 MV photon energy and a variety of wedges made it possible to treat the whole breast and the chest wall. The high-dose regions of the base and the top of the breast did not exceed 105%. No interruption was necessary during treatment, and only grade I-II acute skin reactions were observed. Conclusion: The results of this study have demonstrated the feasibility of the technique, which has the great advantage of using a similar position for CT scanning and treatment

  17. Simulation of diurnal thermal energy storage systems: Preliminary results

    Science.gov (United States)

    Katipamula, S.; Somasundaram, S.; Williams, H. R.

    1994-12-01

    This report describes the results of a simulation of thermal energy storage (TES) integrated with a simple-cycle gas turbine cogeneration system. Integrating TES with cogeneration can serve the electrical and thermal loads independently while firing all fuel in the gas turbine. The detailed engineering and economic feasibility of diurnal TES systems integrated with cogeneration systems has been described in two previous PNL reports. The objective of this study was to lay the ground work for optimization of the TES system designs using a simulation tool called TRNSYS (TRaNsient SYstem Simulation). TRNSYS is a transient simulation program with a sequential-modular structure developed at the Solar Energy Laboratory, University of Wisconsin-Madison. The two TES systems selected for the base-case simulations were: (1) a one-tank storage model to represent the oil/rock TES system; and (2) a two-tank storage model to represent the molten nitrate salt TES system. Results of the study clearly indicate that an engineering optimization of the TES system using TRNSYS is possible. The one-tank stratified oil/rock storage model described here is a good starting point for parametric studies of a TES system. Further developments to the TRNSYS library of available models (economizer, evaporator, gas turbine, etc.) are recommended so that the phase-change processes is accurately treated.

  18. Radiation pasteurization of poultry feed: Preliminary results of feeding tests

    International Nuclear Information System (INIS)

    Borsa, J.; Guenter, B.

    1992-01-01

    Feed used to rear farm animals for human consumption has often been implicated as a vehicle for dissemination of microbial pathogens that can adversely affect both animals or birds, and humans. Radiation pasteurization of animal feed to improve its microbiological quality should reduce the incidence of feed-borne infection in the herd or flock. This would result in safer food for the consumer, and improved economic performance of the production unit. This latter benefit is particularly important because it would directly offset the cost of treating the feed. The likelihood of occurrence, as well as the magnitude, of any improved economic performance in the herd or flock consuming the irradiated feed must be determined experimentally. Accordingly, short term feeding tests were carried out to determine the effect of radiation pasteurization of poultry feed on growth performance of young chicks. The results suggest that radiation pasteurization of poultry feed may have a beneficial effect on the feed conversion efficiency of the birds consuming that feed. 10 refs, 8 tabs

  19. Ramadan fasting: Evidence or expert opinion? Results of preliminary studies

    Directory of Open Access Journals (Sweden)

    Maryam Kazemi

    2013-12-01

    Full Text Available Each year, over a billion Muslims fast worldwide during the month of Ramadan.  Through this religious practice, not only will one have spiritual growth, but can improve his/her diet, which is of pivotal importance in this month. Conversely, the available evidence regarding the health benefits of Ramadan fasting is scarce and highly contentious. Although Islam exempts patients from fasting, many of them fast conceivably and their clinical condition is prone to deteriorate. This is due to the persistent gap between current expert knowledge and conclusive, strong evidence regarding the pathophysiologic and metabolic alterations by fasting, and the consensus that healthcare professionals should reach, in order to manage various patient groups during this month. In this review, we summarize the results of our initial studies regarding the effects of Ramadan fasting on some clinical conditions including alterations of body composition. We also go through the important clinical results of patients who have had previous history of cardiovascular disease, type 2 diabetes, asthma and renal colic. Our studies have presented some evidence in favor of Ramadan fasting and encourage those with mentioned diseases to consult their physicians and follow medical and scientific recommendations. We attempt to present some relevant evidence clarify future scopes in this area of study, and provide suggestions for future investigations.

  20. Ramadan fasting: Evidence or expert opinion? Results of preliminary studies

    Directory of Open Access Journals (Sweden)

    1Maryam Kazemi

    2013-11-01

    Full Text Available Each year, over a billion Muslims fast worldwide during the month of Ramadan. Through this religious practice, not only will one have spiritual growth, but can improve his/her diet, which is of pivotal importance in this month. Conversely, the available evidence regarding the health benefits of Ramadan fasting is scarce and highly contentious. Although Islam exempts patients from fasting, many of them fast conceivably and their clinical condition is prone to deteriorate. This is due to the persistent gap between current expert knowledge and conclusive, strong evidence regarding the pathophysiologic and metabolic alterations by fasting, and the consensus that healthcare professionals should reach, in order to manage various patient groups during this month. In this review, we summarize the results of our initial studies regarding the effects of Ramadan fasting on some clinical conditions including alterations of body composition. We also go through the important clinical results of patients who have had previous history of cardiovascular disease, type 2 diabetes, asthma and renal colic. Our studies have presented some evidence in favor of Ramadan fasting and encourage those with mentioned diseases to consult their physicians and follow medical and scientific recommendations. We attempt to present some relevant evidence clarify future scopes in this area of study, and provide suggestions for future investigations.

  1. Preliminary Hydrogeologic Characterization Results from the Wallula Basalt Pilot Study

    Energy Technology Data Exchange (ETDEWEB)

    B.P. McGrail; E. C. Sullivan; F. A. Spane; D. H. Bacon; G. Hund; P. D. Thorne; C. J. Thompson; S. P. Reidel; F. S. Colwell

    2009-12-01

    The DOE's Big Sky Regional Carbon Sequestration Partnership has completed drilling the first continental flood basalt sequestration pilot borehole to a total depth (TD) of 4,110 feet on the Boise White Paper Mill property at Wallula, Washington. Site suitability was assessed prior to drilling by the 2007-2008 acquisition, processing and analysis of a four-mile, five-line three component seismic swath, which was processed as a single data-dense line. Analysis of the seismic survey data indicated a composite basalt formation thickness of {approx}8,000 feet and absence of major geologic structures (i.e., faults) along the line imaged by the seismic swath. Drilling of Wallula pilot borehole was initiated on January 13, 2009 and reached TD on April 6, 2009. Based on characterization results obtained during drilling, three basalt breccia zones were identified between the depth interval of 2,716 and 2,910 feet, as being suitable injection reservoir for a subsequent CO2 injection pilot study. The targeted injection reservoir lies stratigraphically below the massive Umtanum Member of the Grande Ronde Basalt, whose flow-interior section possesses regionally recognized low-permeability characteristics. The identified composite injection zone reservoir provides a unique and attractive opportunity to scientifically study the reservoir behavior of three inter-connected reservoir intervals below primary and secondary caprock confining zones. Drill cuttings, wireline geophysical logs, and 31one-inch diameter rotary sidewall cores provided geologic data for characterization of rock properties. XRF analyses of selected rock samples provided geochemical characterizations of the rocks and stratigraphic control for the basalt flows encountered by the Wallula pilot borehole. Based on the geochemical results, the pilot borehole was terminated in the Wapshilla Ridge 1 flow of the Grande Ronde Basalt Formation. Detailed hydrologic test characterizations of 12 basalt interflow

  2. Preliminary results on Macroalgae distribution in destructive processes

    Directory of Open Access Journals (Sweden)

    O.I. OSKOLSKAYA

    2001-06-01

    Full Text Available It has been shown, that the destruction of the coastal strip in region of action of Mikhailovsky landslide results in change of species structure and dominant species photophilous Cystoseira barbara on sciophylous Gracilaria verrucosa. In accordance with increasing sediments amount in sea water biomass and the morpho-functional parameters of the photophilous species are reducing, and at the sciophylous are growing. Progressing phenomenon of epiphytism is observed in algal populations in the southern part of researched region which is possible to consider as response reaction, leads to increase a synthesizing surface. Decreasing physiological activity is compensated by growth of the total surface of macrophytes. The increase of a sea water sediments leads to lowering ratio of long and shortwave pigments level of ATP-ase activity and raising concentration of the total sum of pigments in thalli.

  3. A Statistical Study of Magnetic Strom Recovery Phase: Preliminary Results

    Directory of Open Access Journals (Sweden)

    D.-Y. Lee

    2001-06-01

    Full Text Available A statistical study has been performed of the magnetic storm recovery phase using the Dst index for 102 storm events in the interval January 1996 to December 1998. In 43 cases (or 42% out of our 102 events, the recovery phase exhibits fast recovery (taking about 8 hours or less at its initial stage or for the entire recovery period. Since this fast recovery can be explained by the fast charge exchange loss of O+ ions which mostly come from the ionosphere, and since a fraction of H+ ions is of ionospheric origin as well, our statistical result supports the view that the source of ring current ions in many magnetic storms can be terrestrial.

  4. Bioelectrical impedance analysis for bovine milk: Preliminary results

    Science.gov (United States)

    Bertemes-Filho, P.; Valicheski, R.; Pereira, R. M.; Paterno, A. S.

    2010-04-01

    This work reports the investigation and analysis of bovine milk quality by using biological impedance measurements using electrical impedance spectroscopy (EIS). The samples were distinguished by a first chemical analysis using Fourier transform midinfrared spectroscopy (FTIR) and flow citometry. A set of milk samples (100ml each) obtained from 17 different cows in lactation with and without mastitis were analyzed with the proposed technique using EIS. The samples were adulterated by adding distilled water and hydrogen peroxide in a controlled manner. FTIR spectroscopy and flow cytometry were performed, and impedance measurements were made in a frequency range from 500Hz up to 1MHz with an implemented EIS system. The system's phase shift was compensated by measuring saline solutions. It was possible to show that the results obtained with the Bioelectrical Impedance Analysis (BIA) technique may detect changes in the milk caused by mastitis and the presence of water and hydrogen peroxide in the bovine milk.

  5. Preliminary results on bubble detector as personal neutron dosemeter

    International Nuclear Information System (INIS)

    Ponraju, D.; Krishnan, H.; Viswanathan, S.; Indira, R.

    2011-01-01

    The bubble detector is demonstrated as one of the best suitable neutron detectors for neutron dose rate measurements in the presence of high-intense gamma fields. Immobilisation of a volatile liquid in a superheated state and achieving uniform distribution of tiny superheated droplets were a practical challenge. A compact and reusable bubble detector with high neutron sensitivity has been developed at the Indira Gandhi Centre for Atomic Research by immobilising the superheated droplets in a suitable polymer matrix. Two types of bubble detectors have been successfully developed, one by incorporating isobutane for measuring fast neutron and another by incorporating Freon-12 for both fast and thermal neutron. The performance of the detector has been tested using 5 Ci Am-Be neutron source and the results are described. (authors)

  6. Preliminary results of Linear Induction Accelerator LIA-200

    International Nuclear Information System (INIS)

    Sharma, Archana; Senthil, K; Kumar, D D Praveen; Mitra, S; Sharma, V; Patel, A; Sharma, D K; Rehim, R; Kolge, T S; Saroj, P C; Acharya, S; Amitava, Roy; Rakhee, M; Nagesh, K V; Chakravarthy, D P

    2010-01-01

    Repetitive Pulsed Power Technology is being developed keeping in mind the potential applications of this technology in material modifications, disinfections of water, timber, and food pasteurization etc. BARC has indigenously developed a Linear Induction Accelerator (LIA-200) rated for 200 kV, 4 kA, 100 ns, 10 Hz. The satisfactory performance of all the sub-systems including solid state power modulator, amorphous core based pulsed transformers, magnetic switches, water capacitors, water pulse- forming line, induction adder and field-emission diode have been demonstrated. This paper presents some design details and operational results of this pulsed power system. It also highlights the need for further research and development to build reliable and economic high-average power systems for industrial applications.

  7. Bioenergy potentials from forestry to 2050. Preliminary results

    International Nuclear Information System (INIS)

    Smeets, E.; Faaij, A.; Lewandowski, I.

    2004-05-01

    In this study a bottom-up scenario analysis of the global bioenergy production potential is carried out, with specific attention for the impact of underlying factors, existing outlook studies on demand and supply and gaps in the knowledge base that explain the large range in estimates. Key variables are the demand for industrial roundwood and fuelwood, plantation establishment rates and natural forest growth. Key uncertainties are the supply of wood from trees outside and the impact of sustainable forest management (SFM) of yields. Results show that the world is capable of meeting the future demand for industrial roundwood and fuelwood, without further deforestation. The total potential of bioenergy from surplus forest growth and residues is estimated at 27 to 140 EJy -1 in 2050

  8. Fexofenadine Treatment of Atopic Dogs: Preliminary Clinical Results

    Directory of Open Access Journals (Sweden)

    A. Plevnik

    2006-01-01

    Full Text Available The purpose of our study was to investigate the efficacy and safety of the antihistamine fexofenadine versus methylprednisolone in dogs with atopic dermatitis. Eight dogs were included in the study and randomly allocated to two groups of four animals. The first group (F received oral fexofenadine and the second group (M received methylprednisolone. Over a period of 6 weeks, we evaluated the CADESI (Canine Atopic Dermatitis Extent Severity Index score and the pruritus score and made measurements of biochemical blood indicators (AP, ALT, AST, urea, creatinine on three occasions. The study results did not reveal any statistically significant differences compared to baseline in AST, ALT, AP, urea and creatinine values in any of the treated groups and at any of the time points during the treatment (p > 0.112. The mean CADESI values and the severity of pruritus were reduced by more than 50% in both groups during the treatment course. There were no statistically significant differences between group M and group F. A statistically significant difference compared to the baseline was found in the reduction of the CADESI score in group F in the sixth week of treatment (p = 0.011. There was also a significant reduction compared to the baseline in the severity of pruritus ingroup M in the third (p = 0.004 and sixth week of treatment (p = 0.022. Our results indicate the possible use of fexofenadine in the treatment of atopic dermatitis in dogs, as it was demonstrated safe and effective in comparison with methylprednisolone.

  9. NEOWISE OBSERVATIONS OF NEAR-EARTH OBJECTS: PRELIMINARY RESULTS

    Energy Technology Data Exchange (ETDEWEB)

    Mainzer, A.; Bauer, J.; Masiero, J.; Eisenhardt, P. [Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 (United States); Grav, T.; Mo, W. [Department of Physics and Astronomy, Johns Hopkins University, Baltimore, MD (United States); McMillan, R. S. [Lunar and Planetary Laboratory, University of Arizona, 1629 East University Blvd., Tucson, AZ 85721-0092 (United States); Cutri, R. M. [Infrared Processing and Analysis Center, California Institute of Technology, Pasadena, CA 91125 (United States); Walker, R. [Monterey Institute for Research in Astronomy, Monterey, CA (United States); Wright, E. [Department of Physics and Astronomy, UCLA, P.O. Box 91547, Los Angeles, CA 90095-1547 (United States); Tholen, D. J.; Jedicke, R.; Denneau, L. [Institute for Astronomy, University of Hawaii, 2680 Woodlawn Drive, Honolulu, HI (United States); Spahr, T. [Minor Planet Center, Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138 (United States); DeBaun, E. [Department of Physics and Astronomy, Dartmouth University, Hanover, NH 03755 (United States); Elsbury, D. [University of California Santa Barbara, Broida Hall, Santa Barbara, CA 93103 (United States); Gautier, T. [Cornell University, Ithaca, NY 14853 (United States); Gomillion, S. [Department of Engineering Physics, Embry-Riddle Aeronautical University, 600 S. Clyde Morris Boulevard, Daytona Beach, FL 32114 (United States); Hand, E. [Department of Mechanical Engineering, University of Missouri-Kansas City, Kansas City, MO 64110 (United States); Watkins, J., E-mail: amainzer@jpl.nasa.gov [Department of Earth and Space Sciences, UCLA, 595 Charles Young Drive East, Box 951567, Los Angeles, CA 90095 (United States); and others

    2011-12-20

    With the NEOWISE portion of the Wide-field Infrared Survey Explorer (WISE) project, we have carried out a highly uniform survey of the near-Earth object (NEO) population at thermal infrared wavelengths ranging from 3 to 22 {mu}m, allowing us to refine estimates of their numbers, sizes, and albedos. The NEOWISE survey detected NEOs the same way whether they were previously known or not, subject to the availability of ground-based follow-up observations, resulting in the discovery of more than 130 new NEOs. The survey's uniform sensitivity, observing cadence, and image quality have permitted extrapolation of the 428 near-Earth asteroids (NEAs) detected by NEOWISE during the fully cryogenic portion of the WISE mission to the larger population. We find that there are 981 {+-} 19 NEAs larger than 1 km and 20,500 {+-} 3000 NEAs larger than 100 m. We show that the Spaceguard goal of detecting 90% of all 1 km NEAs has been met, and that the cumulative size distribution is best represented by a broken power law with a slope of 1.32 {+-} 0.14 below 1.5 km. This power-law slope produces {approx}13, 200 {+-} 1900 NEAs with D > 140 m. Although previous studies predict another break in the cumulative size distribution below D {approx} 50-100 m, resulting in an increase in the number of NEOs in this size range and smaller, we did not detect enough objects to comment on this increase. The overall number for the NEA population between 100 and 1000 m is lower than previous estimates. The numbers of near-Earth comets and potentially hazardous NEOs will be the subject of future work.

  10. THE BRIGHTEST OF REIONIZING GALAXIES SURVEY: DESIGN AND PRELIMINARY RESULTS

    International Nuclear Information System (INIS)

    Trenti, M.; Bradley, L. D.; Stiavelli, M.; MacKenty, J. W.; Oesch, P.; Carollo, C. M.; Treu, T.; Bouwens, R. J.; Illingworth, G. D.; Shull, J. M.

    2011-01-01

    We present the first results on the search for very bright (M AB ∼ -21) galaxies at redshift z ∼ 8 from the Brightest of Reionizing Galaxies (BoRG) survey. BoRG is a Hubble Space Telescope Wide Field Camera 3 (WFC3) pure-parallel survey that is obtaining images on random lines of sight at high Galactic latitudes in four filters (F606W, F098M, F125W, and F160W), with integration times optimized to identify galaxies at z ∼> 7.5 as F098M dropouts. We discuss here results from a search area of approximately 130 arcmin 2 over 23 BoRG fields, complemented by six other pure-parallel WFC3 fields with similar filters. This new search area is more than two times wider than previous WFC3 observations at z ∼ 8. We identify four F098M-dropout candidates with high statistical confidence (detected at greater than 8σ confidence in F125W). These sources are among the brightest candidates currently known at z ∼ 8 and approximately 10 times brighter than the z = 8.56 galaxy UDFy-38135539. They thus represent ideal targets for spectroscopic follow-up observations and could potentially lead to a redshift record, as our color selection includes objects up to z ∼ 9. However, the expected contamination rate of our sample is about 30% higher than typical searches for dropout galaxies in legacy fields, such as the GOODS and HUDF, where deeper data and additional optical filters are available to reject contaminants.

  11. Preliminary results of hydrogeologic investigations Humboldt River Valley, Winnemucca, Nevada

    Science.gov (United States)

    Cohen, Philip M.

    1964-01-01

    . The resulting increase of the stage of the river causes the river to lose large amounts of water by infiltration to the ground-water reservoir in the study area. In addition, there is much recharge to the ground-water reservoir in the spring and early summer as a result of seepage losses from irrigation ditches and the downward percolation of some of the excess water applied for irrigation. The average net increase of ground water in storage in the deposits beneath and adjacent to the flood plain of the Humboldt River during the spring and early summer is about 10,000 acre-feet.

  12. Ionospheric scintillation observations over Kenyan region - Preliminary results

    Science.gov (United States)

    Olwendo, O. J.; Xiao, Yu; Ming, Ou

    2016-11-01

    Ionospheric scintillation refers to the rapid fluctuations in the amplitude and phase of a satellite signal as it passes through small-scale plasma density irregularities in the ionosphere. By analyzing ionospheric scintillation observation datasets from satellite signals such as GPS signals we can study the morphology of ionospheric bubbles. At low latitudes, the diurnal behavior of scintillation is driven by the formation of large-scale equatorial density depletions which form one to two hours after sunset via the Rayleigh-Taylor instability mechanism near the magnetic equator. In this work we present ionospheric scintillation activity over Kenya using data derived from a newly installed scintillation monitor developed by CRIRP at Pwani University (39.78°E, 3.24°S) during the period August to December, 2014. The results reveal the scintillation activity mainly occurs from post-sunset to post-midnight hours, and ceases around 04:00 LT. We also found that the ionospheric scintillation tends to appear at the southwest and northwest of the station. These locations coincide with the southern part of the Equatorial Ionization Anomaly crest over Kenya region. The occurrence of post-midnight L-band scintillation events which are not linked to pre-midnight scintillation observations raises fundamental question on the mechanism and source of electric fields driving the plasma depletion under conditions of very low background electron density.

  13. Size dependent differences in litter consumption of isopods: preliminary results

    Directory of Open Access Journals (Sweden)

    Ferenc Vilisics

    2012-03-01

    Full Text Available A series of experiments were applied to test how leaf orientation within microcosms affect consumption rates (Experiment 1, and to discover intra-specific differences in leaf litter consumption (Experiment 2 of the common isopod species Porcellio scaber and Porcellionides pruinosus. A standardised microcosm setup was developed for feeding experiments to maintain standard conditions. A constant amount of freshly fallen black poplar litter was provided to three distinct size class (small, medium, large of woodlice. We measured litter consumption after a fortnight. We maintained appr. constant isopod biomass for all treatments, and equal densities within each size class. We hypothesized that different size classes differ in their litter consumption, therefore such differences should occur even within populations of the species. We also hypothesized a marked difference in consumption rates for different leaf orientation within microcosms. Our results showed size-specific consumption patterns for P. scaber: small adults showed the highest consumption rates (i.e. litter mass loss / isopod biomass in high density microcosms, while medium-sized adults of lower densities ate the most litter in containers. Leaf orientation posed no significant effect on litter consumption.

  14. Combined optical and single photon emission imaging: preliminary results

    Energy Technology Data Exchange (ETDEWEB)

    Boschi, Federico; Calderan, Laura; Sbarbati, Andrea [Department of Morphological-Biomedical Sciences, Section of Anatomy and Histology, University of Verona, Verona (Italy); Spinelli, Antonello E [Medical Physics Department, San Raffaele Scientific Institute, Milan (Italy); D' Ambrosio, Daniela; Marengo, Mario [Medical Physics Department, S. Orsola Malpighi Hospital, Bologna (Italy)], E-mail: federico.boschi@univr.it

    2009-12-07

    In vivo optical imaging instruments are generally devoted to the acquisition of light coming from fluorescence or bioluminescence processes. Recently, an instrument was conceived with radioisotopic detection capabilities (Kodak in Vivo Multispectral System F) based on the conversion of x-rays from the phosphorus screen. The goal of this work is to demonstrate that an optical imager (IVIS 200, Xenogen Corp., Alameda, USA), designed for in vivo acquisitions of small animals in bioluminescent and fluorescent modalities, can even be employed to detect signals due to radioactive tracers. Our system is based on scintillator crystals for the conversion of high-energy rays and a collimator. No hardware modifications are required. Crystals alone permit the acquisition of photons coming from an in vivo 20 g nude mouse injected with a solution of methyl diphosphonate technetium 99 metastable (Tc99m-MDP). With scintillator crystals and collimators, a set of measurements aimed to fully characterize the system resolution was carried out. More precisely, system point spread function and modulation transfer function were measured at different source depths. Results show that system resolution is always better than 1.3 mm when the source depth is less than 10 mm. The resolution of the images obtained with radioactive tracers is comparable with the resolution achievable with dedicated techniques. Moreover, it is possible to detect both optical and nuclear tracers or bi-modal tracers with only one instrument. (letter to the editor)

  15. Geochemistry of shale groundwaters: Results of preliminary laboratory leaching experiments

    International Nuclear Information System (INIS)

    Von Damm, K.L.; Johnson, K.O.

    1987-09-01

    Twelve shales were reacted with distilled water at 20 0 C and 100 0 C; the composition of the waters and the mineralogy were determined before and after reaction. The experiments were conducted in a batch mode over a period of approximately 40 days. Major changes occurred in the solution chemistry; in most cases sulfate became the dominant anion while either sodium or calcium was the major cation. The high sulfate is most likely a result of the oxidation of pyrite in the samples. In the 100 0 C experiments some of the solutions became quite acidic. Examination of the observed mineralogy and comparison to the mineral assemblage calculated to be in equilibrium with the experimentally determined waters, suggests that the acidic waters are generated when no carbonate minerals remain to buffer the groundwaters to a more neutral pH. The pH of shale waters will be determined by the balance between the oxidation of pyrite and organic matter and the dissolution of carbonate minerals. The experimental data are helping to elucidate the chemical reactions that control the pH of shale groundwaters, a critical parameter in determining other water-rock and waste-water-rock interactions and ultimate solute mobility. An experimental approach also provides a means of obtaining data for shales for which no groundwater data are available as well as data on chemical species which are not usually determined or reported

  16. Geochemistry of shale groundwaters: Results of preliminary laboratory leaching experiments

    Energy Technology Data Exchange (ETDEWEB)

    Von Damm, K.L.; Johnson, K.O.

    1987-09-01

    Twelve shales were reacted with distilled water at 20/sup 0/C and 100/sup 0/C; the composition of the waters and the mineralogy were determined before and after reaction. The experiments were conducted in a batch mode over a period of approximately 40 days. Major changes occurred in the solution chemistry; in most cases sulfate became the dominant anion while either sodium or calcium was the major cation. The high sulfate is most likely a result of the oxidation of pyrite in the samples. In the 100/sup 0/C experiments some of the solutions became quite acidic. Examination of the observed mineralogy and comparison to the mineral assemblage calculated to be in equilibrium with the experimentally determined waters, suggests that the acidic waters are generated when no carbonate minerals remain to buffer the groundwaters to a more neutral pH. The pH of shale waters will be determined by the balance between the oxidation of pyrite and organic matter and the dissolution of carbonate minerals. The experimental data are helping to elucidate the chemical reactions that control the pH of shale groundwaters, a critical parameter in determining other water-rock and waste-water-rock interactions and ultimate solute mobility. An experimental approach also provides a means of obtaining data for shales for which no groundwater data are available as well as data on chemical species which are not usually determined or reported.

  17. Gamma knife radiosurgery for brainstem arteriovenous malformations: preliminary results.

    Science.gov (United States)

    Massager, N; Régis, J; Kondziolka, D; Njee, T; Levivier, M

    2000-12-01

    This study was undertaken to assess the efficacy and safety of gamma knife radiosurgery (GKS) for the treatment of arteriovenous malformations (AVMs) located within the brainstem. The results of GKS performed in 87 patients with brainstem AVMs at two centers with experienced physicians are reviewed. The mean patient age was 37 years and the population included 19 children. The male/female ratio was 56:31. The malformation was located in the upper brainstem in 52 patients. Seventy-four percent of the patients had suffered a hemorrhage before GKS. For 70% of the patients no other treatment had been proposed before GKS. The mean AVM volume was 1.3 cm3. The lesions were treated with one to eight isocenters, with a margin dose ranging between 11.5 Gy and 30 Gy. The mean clinical follow-up period was 3.2 years. Ninety-five percent of the patients improved or remained neurologically stable. Rebleeding occurred in three patients at 3, 6, and 16 months, respectively, after GKS. Two patients in whom rebleeding occured recovered, and one died. The AVM obliteration rate was 63% at 2 years and 73% at 3 years after GKS. A second GKS was performed in six patients in whom only partial obliteration was demonstrated on angiography 3 years after the first procedure. Gamma knife radiosurgery may be a valuable first-choice therapy for the treatment of AVMs located within the brainstem.

  18. Maternal Plasma Metabolomic Profiles in Spontaneous Preterm Birth: Preliminary Results

    Directory of Open Access Journals (Sweden)

    Barbara Lizewska

    2018-01-01

    Full Text Available Objective. To profile maternal plasma metabolome in spontaneous preterm birth. Method. In this retrospective case-control study, we have examined plasma of patient with preterm birth (between 22 and 36 weeks of pregnancy (n=57, with threatened preterm labor (between 23 and 36 weeks of pregnancy (n=49, and with term delivery (n=25. Plasma samples were analysed using liquid chromatography quadrupole time-of-flight mass spectrometry (LC-Q-TOF-MS in positive and negative polarity modes. Results. We found 168 differentially expressed metabolites that were significantly distinct between study groups. We determined 51 metabolites using publicly available databases that could be subdivided into one of the five groups: amino acids, fatty acids, lipids, hormones, and bile acids. PLS-DA models, verified by SVM classification accuracy, differentiated preterm birth and term delivery groups. Conclusions. Maternal plasma metabolites are different between term and preterm parturitions. Part of them may be related with preterm labor, while others may be affected by gestational age or the beginning of labor. Metabolite profile can classify preterm or term delivery groups raising the potential of metabolome as a biomarker to identify high-risk pregnancies. Metabolomic studies are also a tool to detect individual compounds that may be further tested in targeted researches.

  19. Preliminary results on noncollocated torque control of space robot actuators

    Science.gov (United States)

    Tilley, Scott W.; Francis, Colin M.; Emerick, Ken; Hollars, Michael G.

    1989-01-01

    In the Space Station era, more operations will be performed robotically in space in the areas of servicing, assembly, and experiment tending among others. These robots may have various sets of requirements for accuracy, speed, and force generation, but there will be design constraints such as size, mass, and power dissipation limits. For actuation, a leading motor candidate is a dc brushless type, and there are numerous potential drive trains each with its own advantages and disadvantages. This experiment uses a harmonic drive and addresses some inherent limitations, namely its backdriveability and low frequency structural resonances. These effects are controlled and diminished by instrumenting the actuator system with a torque transducer on the output shaft. This noncollocated loop is closed to ensure that the commanded torque is accurately delivered to the manipulator link. The actuator system is modelled and its essential parameters identified. The nonlinear model for simulations will include inertias, gearing, stiction, flexibility, and the effects of output load variations. A linear model is extracted and used for designing the noncollocated torque and position feedback loops. These loops are simulated with the structural frequency encountered in the testbed system. Simulation results are given for various commands in position. The use of torque feedback is demonstrated to yield superior performance in settling time and positioning accuracy. An experimental setup being finished consists of a bench mounted motor and harmonic drive actuator system. A torque transducer and two position encoders, each with sufficient resolution and bandwidth, will provide sensory information. Parameters of the physical system are being identified and matched to analytical predictions. Initial feedback control laws will be incorporated in the bench test equipment and various experiments run to validate the designs. The status of these experiments is given.

  20. Preliminary Results from Coordinated UVCS-CDS-Ulysses Observations

    Science.gov (United States)

    Parenti, S.; Bromage, B. J.; Poletto, G.; Suess, S. T.; Raymond, J. C.; Noci, G.; Bromage, G. E.; Rose, M. Franklin (Technical Monitor)

    2001-01-01

    The June 2000 quadrature between the Sun, Earth, and Ulysses took place with Ulysses at a distance of 3.35 AU from the Sun and at heliocentric latitude 58.2 deg south, in the southeast quadrant. This provided an opportunity to observe the corona close to the Sun with Coronal Diagnostic Spectrometer (CDS) and Ultraviolet Coronograph Spectrometer (UVCS) and, subsequently, to sample the same plasma when it reached Ulysses. Here we focus on simultaneous observations of UVCS and CDS made on June 12, 13, 16 and 17. The UVCS data were acquired at heliocentric altitudes ranging from 1.6 to 2.2 solar radii, using different grating positions, in order to get a wide wavelength range. CDS data consisted of Normal Incidence Spectrometer (NIS) full wavelength rasters of 120" x 150" centered at altitudes up to 1.18 solar radii, together with Grazing Incidence Spectrometer (GIS) 4" x 4" rasters within the same field of view, out to 1.2 solar radii. The radial direction to Ulysses passed through a high latitude streamer, throughout the 4 days of observations, Analysis of the spectra taken by UVCS shows a variation of the element abundances in the streamer over our observing interval: however, because the observations were in slightly different parts of the streamer on different days, the variation could be ascribed either to a temporal or spatial effect. The oxygen abundance, however, seems to increase at the edge of the streamer, as indicated by previous analyses. This suggests the variation may be a function of position within the streamer, rather than a temporal effect. Oxygen abundances measured by SWICS on Ulysses are compared with the CDS and UVCS results to see whether changes measured in situ follow the same pattern.

  1. Thermal plasma treatment of cell-phone waste : preliminary result

    Energy Technology Data Exchange (ETDEWEB)

    Ruj, B. [Central Mechanical Engineering Research Inst., Durgapur (India). Thermal Engineering Group; Chang, J.S.; Li, O.L. [McMaster Univ., Hamilton, ON (Canada). Dept. of Engineering Physics; Pietsch, G. [RWTH Aachen Univ., Aachen (Germany)

    2010-07-01

    The cell phone is an indispensable service facilitator, however, the disposal and recycling of cell phones is a major problem. While the potential life span of a mobile phone, excluding batteries, is over 10 years, most of the users upgrade their phones approximately four times during this period. Cell phone waste is significantly more hazardous than many other municipal wastes as it contains thousands of components made of toxic chemicals and metals like lead, cadmium, chromium, mercury, polyvinyl chlorides (PVC), brominated flame retardants, beryllium, antimony and phthalates. Cell phones also use many expensive rare metals. Since cell phones are made up of plastics, metals, ceramics, and trace other substances, primitive recycling or disposal of cell phone waste to landfills and incinerators creates irreversible environmental damage by polluting water and soil, and contaminating air. In order to minimize releases into the environment and threat to human health, the disposal of cell phones needs to be managed in an environmentally friendly way. This paper discussed a safer method of reducing the generation of syngas and hydrocarbons and metal recovery through the treatment of cell phone wastes by a thermal plasma. The presentation discussed the experiment, with particular reference to sample preparation; experimental set-up; and results four samples with different experimental conditions. It was concluded that the plasma treatment of cell phone waste in reduced condition generates gaseous components such as hydrogen, carbon monoxide, and hydrocarbons which are combustible. Therefore, this system is an energy recovery system that contributes to resource conservation and reduction of climate change gases. 5 refs., 2 tabs., 2 figs.

  2. Adaptive sound speed correction for abdominal ultrasonography: preliminary results

    Science.gov (United States)

    Jin, Sungmin; Kang, Jeeun; Song, Tai-Kyung; Yoo, Yangmo

    2013-03-01

    Ultrasonography has been conducting a critical role in assessing abdominal disorders due to its noninvasive, real-time, low cost, and deep penetrating capabilities. However, for imaging obese patients with a thick fat layer, it is challenging to achieve appropriate image quality with a conventional beamforming (CON) method due to phase aberration caused by the difference between sound speeds (e.g., 1580 and 1450m/s for liver and fat, respectively). For this, various sound speed correction (SSC) methods that estimate the accumulated sound speed for a region-of interest (ROI) have been previously proposed. However, with the SSC methods, the improvement in image quality was limited only for a specific depth of ROI. In this paper, we present the adaptive sound speed correction (ASSC) method, which can enhance the image quality for whole depths by using estimated sound speeds from two different depths in the lower layer. Since these accumulated sound speeds contain the respective contributions of layers, an optimal sound speed for each depth can be estimated by solving contribution equations. To evaluate the proposed method, the phantom study was conducted with pre-beamformed radio-frequency (RF) data acquired with a SonixTouch research package (Ultrasonix Corp., Canada) with linear and convex probes from the gel pad-stacked tissue mimicking phantom (Parker Lab. Inc., USA and Model539, ATS, USA) whose sound speeds are 1610 and 1450m/s, respectively. From the study, compared to the CON and SSC methods, the ASSC method showed the improved spatial resolution and information entropy contrast (IEC) for convex and linear array transducers, respectively. These results indicate that the ASSC method can be applied for enhancing image quality when imaging obese patients in abdominal ultrasonography.

  3. The HCV Synthesis Project: Scope, methodology, and preliminary results

    Directory of Open Access Journals (Sweden)

    Scheinmann Roberta

    2008-09-01

    Full Text Available Abstract Background The hepatitis C virus (HCV is hyper-endemic in injecting drug users. There is also excess HCV among non-injection drug users who smoke, snort, or sniff heroin, cocaine, crack, or methamphetamine. Methods To summarize the research literature on HCV in drug users and identify gaps in knowledge, we conducted a synthesis of the relevant research carried out between 1989 and 2006. Using rigorous search methods, we identified and extracted data from published and unpublished reports of HCV among drug users. We designed a quality assurance system to ensure accuracy and consistency in all phases of the project. We also created a set of items to assess study design quality in each of the reports we included. Results We identified 629 reports containing HCV prevalence rates, incidence rates and/or genotype distribution among injecting or non-injecting drug user populations published between January 1989 and December 2006. The majority of reports were from Western Europe (41%, North America (26%, Asia (11% and Australia/New Zealand (10%. We also identified reports from Eastern Europe, South America, the Middle East, and the Caribbean. The number of publications reporting HCV rates in drug users increased dramatically between 1989 and 2006 to 27–52 reports per year after 1998. Conclusion The data collection and quality assurance phases of the HCV Synthesis Project have been completed. Recommendations for future research on HCV in drug users have come out of our data collection phase. Future research reports can enhance their contributions to our understanding of HCV etiology by clearly defining their drug user participants with respect to type of drug and route of administration. Further, the use of standard reporting methods for risk factors would enable data to be combined across a larger set of studies; this is especially important for HCV seroconversion studies which suffer from small sample sizes and low power to examine risk

  4. The STARflo glaucoma implant: preliminary 12 months results.

    Science.gov (United States)

    Fili, Sofia; Wölfelschneider, Peter; Kohlhaas, Markus

    2018-04-01

    The STARflo glaucoma implant is a drainage-free system designed for the operative treatment of refractory open-angle glaucoma. The purpose of this study is to investigate the safety and efficacy of the STARflo implant. The results of 12 months follow-up are presented in patients with open-angle glaucoma, PEX-glaucoma, and congenital glaucoma. A prospective study with a total of over 29 patients (36 eyes), in which the suprachoroidal implantation of the STARflo was indicated for long-term intraocular pressure reduction, is still in process and evaluation. The reduction of intraocular pressure was satisfying after 12 months with an average intraocular pressure of 15.0 (± 2.5) mmHg in comparison to 21.08 (± 7.29) mmHg preoperatively. There was a significant 66.7% reduction in local glaucoma drops 12 months postoperatively (p < 0.001). Twenty-five percent of the eyes needed further surgery to regulate the intraocular pressure. No intraoperative complications have been reported after the implantation of STARflo. Postoperative complications include hyphema and fibrin formation in the anterior chamber, which were completely resorbed after the first postoperative month. A postoperative intraocular pressure (IOP) elevation was the most common complication after the first 3 months. The STARflo implant appears to be a safe and effective alternative treatment method for patients with refractory open-angle glaucoma compared to conventional glaucoma surgery.

  5. [Results evaluation in cervical vertigo kinesitherapy--preliminary report].

    Science.gov (United States)

    Bielińska, Marzena; Olszewski, Jurek

    2009-09-01

    The work aimed at analyzing results of kinesitherapeutic procedures in patients with cervical vertigo as well as evaluating a mobility range of the cervical spine. The study was conducted on 23 people, including 17 women and 6 men suffering from cervical vertigo, at the age of 23-73 (the average age of 49.5). All the patients had an individually selected cycle of kinesitherapeutic exercises through the period of 2 months. The objective efficiency evaluation of the applied therapy was made on the grounds of the videonystagmographic examination (VNG). Additionally, the range of active mobility of the cervical spine was analyzed and the evaluation of vertigo according to Silvoniemi's criteria was performed. After a 2-month therapy 4 patients (17.4%) out of the examined material showed a total lack of vertigo, 15 patients (65.2%) demonstrated a meaningful decrease in the vertigo intensity, also in the frequency of their occurrence in 14 cases (60.8%). Only 3 patients did not show any decrease in vertigo whereas in 1 patient a slight increase in the intensity was indicated. On the basis of a subjective evaluation of the vertigo increase according to the 5-stage Silvoniemi's scale it was proved that a mean point assessment claimed by the patients at the beginning of the therapy amounts to 3.0 points whereas after the therapy it was as follows: 1.43 pt after 2 weeks, 1.17 pt after 1 month and 1.13 pt after 2 months of kinesitherapy. It is extremely difficult to fully eliminate the symptoms of cervical vertigo (in the studied material in 4 cases--17.3%) because the causes of their occurrence, which are connected with excessive tension and degeneration in the cervical spine, cannot usually be eradicated. Additionally, as a diagnostic means, the videonystagmographic examination (VNG) accompanied by the positioning tests and the cervical rotation test facilitates precise and objective monitoring of the progress in treatment and rehabilitation of vertigo.

  6. Transdiagnostic versus diagnosis-specific cbt for anxiety disorders: a preliminary randomized controlled noninferiority trial.

    Science.gov (United States)

    Norton, Peter J; Barrera, Terri L

    2012-10-01

    Transdiagnostic cognitive-behavioral treatments for anxiety disorders have been gaining increased attention and empirical study in recent years. Despite this, research on transdiagnostic anxiety treatments has, to date, relied on open trials, or comparisons to waitlist conditions, published benchmarks, or relaxation-based interventions. The current study was a randomized clinical trial examining the efficacy of a 12-week transdiagnostic cognitive-behavioral group treatment in comparison to 12-week diagnosis-specific group Cognitive-Behavioral Therapy (CBT) protocols for panic disorder, social anxiety disorder, and generalized anxiety disorder. Results from 46 treatment initiators suggested significant improvement during treatment, strong evidence for treatment equivalence across transdiagnostic and diagnosis-specific CBT conditions, and no differences in treatment credibility. This study provides evidence supporting the efficacy of transdiagnostic CBT by comparison to current gold-standard diagnosis-specific CBT for social anxiety disorder, generalized anxiety disorder, and panic disorder. Transdiagnostic group CBT has the benefit of potentially easing dissemination and increasing access to evidence-based treatments for anxiety without sacrificing efficacy. © 2012 Wiley Periodicals, Inc.

  7. Diode laser supported partial nephrectomy in laparoscopic surgery: preliminary results

    Science.gov (United States)

    Sroka, Ronald; Hennig, Georg; Zillinberg, Katja; Khoder, Wael Y.

    2011-07-01

    Introduction: Warm ischemia and bleeding during laparoscopic partial nephrectomy place technical constraints on surgeons. Therefore it was the aim to develop a safe and effective laser assisted partial nephrectomy technique without need for ischemia. Patients and methods: A diode laser emitting light at 1318nm in cw mode was coupled into a bare fibre (core diameter 600 μm) thus able to transfer up to 100W to the tissue. After dry lab experience, a total of 8 patients suffering from kidney malformations underwent laparoscopic/retroperitoneoscopic partial nephrectomy. Clinically, postoperative renal function and serum c-reactive protein (CRP) were monitored. Laser induced coagulation depth and effects on resection margins were evaluated. Demographic, clinical and follow-up data are presented. Results: Overall interventions, the mean operative time was 116,5 minutes (range 60-175min) with mean blood loss of 238ml (range 50-600ml) while laser assisted resection of the kidney tissue took max 15min. After extirpation of the tumours all patients showed clinical favourable outcome during follow up period. The tumour size was measured to be 1.8 to 5cm. With respect to clinical safety and due to blood loos, two warm ischemia (19 and 24min) must be performed. Immediate postoperative serum creatinine and CRP were elevated within 0.1 to 0.6 mg/dl (mean 0.18 mg/dl) and 2.1-10 mg/dl (mean 6.24 mg/dl), respectively. The depth of the coagulation on the removed tissue ranged between <1 to 2mm without effect on histopathological evaluation of tumours or resection margin. As the surface of the remaining kidney surface was laser assisted coagulated after removal. The sealing of the surface was induced by a slightly larger coagulation margin, but could not measured so far. Conclusion: This prospective in-vivo feasibility study shows that 1318nm-diode laser assisted partial nephrectomy seems to be a safe and promising medical technique which could be provided either during open surgery

  8. Antiresorptive Treatment for Spaceflight Induced Bone Atrophy - Preliminary Results

    Science.gov (United States)

    LeBlanc, Adrian; Matsumoto, toshio; Jones, Jeff; Shapiro, Jay; Lang, Thomas; Shackelford, Linda C.; Smith, Scott M.; Evans, Harlan J.; Spector, Elisabeth R.; Ploutz-Snyder, Robert; hide

    2011-01-01

    Detailed measurements from the Mir and ISS long duration missions have documented losses in bone mineral density (BMD) from critical skeletal sub-regions. The most important BMD losses are from the femoral hip, averaging about -1.6%/mo integral to -2.3%/mo trabecular. Importantly these studies have documented the wide range in individual BMD loss from -0.5 to -5%/mo. Associated elevated urinary Ca increases the risk of renal stone formation during flight, a serious impact to mission success. To date, countermeasures have not been satisfactory. The purpose of this study is to determine if the combined effect of anti-resorptive drugs plus the standard in-flight exercise regimen will have a measurable effect on preventing space flight induced bone loss (mass and strength) and reducing renal stone risk. To date, 4 crewmembers have completed the flight portion of the protocol in which crewmembers take a 70-mg alendronate tablet once a week before and during flight, starting 17 days before launch. Compared to previous ISS crewmembers (n=14) not taking alendronate, DXA measurements of the spine, femur neck and total hip were significantly improved from -0.8 +/- 0.5%/mo to 1.0 +/- 1.1%/mo, -1.1 +/- 0.5%/mo to -0.2 +/- 0.3%/mo, -1.1 +/- 0.5%/mo to 0.04 +/- 0.3%/mo respectively. QCT-determined trabecular BMD of the femur neck, trochanter and total hip were significantly improved from -2.7 +/- 1.9%/mo to -0.2 +/- 0.8%/mo, -2.2 +/- 0.9%/mo to -0.3 +/- 1.9%/mo and -2.3 +/- 1.0%/mo to -0.2 +/- 1.8%/mo respectively. Significance was calculated from a one-tailed t test. Resorption markers were unchanged, in contrast to measurements from previous ISS crewmembers that showed typical increases of 50-100% above baseline. Urinary Ca showed no increase compared to baseline levels, also distinct from the elevated levels of 50% or greater in previous crews. While these results are encouraging, the current n (4) is small, and the large SDs indicate that, while the means are improved, there

  9. Dating of polyhalite and langbeinite: preliminary results from German Zechstein

    Science.gov (United States)

    Neubauer, Franz; Schorn, Anja; Leitner, Christoph; Genser, Johann

    2013-04-01

    formation temperatures are given between 57.1 ° C or more commonly 83 ° C (e.g. Neitzel, 1992 and references therein), is mined as potash ore at the German Zechstein deposits. Neitzel (1992) summarized two main types of langbeinite formation (1) from kainite and halite (due to thermal metamorphism) and (2) from sylvinitic Hartsalz (= mixture of sylvite, kieserite and halite) due to solution metamorphism. The mineral might also form by decomposition of polyhalite to langbeinite and anhydrite during prograde metamorphism. In the following, we discuss the first successful results of polyhalite and langbeinite dating in Zechstein salts of Germany (Morsleben, Neuhof). Extremely fine-grained (grain sizes Research and Technology, 31, 87-92. Freyer D., Voigt W., 2003. Crystallization and phase stability of CaSO4 and CaSO4-based salts. Monatshefte für Chemie, 134, 693-719. Leitner, C., Neubauer, F., Marschallinger, R., Genser, J., Bernroider, M., 2012. Origin of deformed halite hopper crystals, pseudomorphic anhydrite cubes and polyhalite in Alpine evaporites (Austria, Germany). International Journal of Earth Sciences, DOI 10.1007/s00531-012-0836-6. Neitzel, U., 1992. 100 Jahre Langbeinit. Kali und Steinsalz, 11/1, 7-13. Renne, P. R., Sharp, W. D. Montañez, I. P., Becker, R. A., Zierenberg, R. A., 2001. 40Ar/39Ar dating of Late Permian evaporites, southeastern New Mexico, USA. Earth and Planetary Science Letters, 193, 539-547. Warren, J. K., 2006. Evaporites: Sediments, Resources and Hydrocarbons. Springer, Berlin Heidelberg, 1035 p. Wollmann, G., 2010. Crystallization Fields of Polyhalite and its Heavy Metal Analogues. Ph.D. thesis, University Bergakademie Freiberg. Wollmann, G., Freyer, D., Voigt, W., 2008. Polyhalite and its analogous triple salts. Monatshefte für Chemie, 139, 739-745.

  10. Preliminary diagnosis, the basis for the construction of a Program Solid Waste Management at the University of San Buenaventura, Cartagena

    International Nuclear Information System (INIS)

    Rios Montes, Karina Andrea; Echeverri Jaramillo, Gustavo Eugenio

    2012-01-01

    Solid waste can generate negative impacts on environment and human being, because of inadequate management. Universities should consider handling the stages of generation, collection and disposal, including its assessment. We performed a cross-sectional study, which was made a preliminary diagnosis on the management of solid waste, including perception, knowledge and recommendations given by the community of the university, to support a solid waste program at the institution. An instrument was applied to a probability sample. The population was formed by students (84%), teachers (8.8%), and administrative staff (7.1%). The results indicate that 59.9% knows management about SW, and only 29.8% recycled. The mass media with 49.8% is the main channel to hear these. 72.1% of people recycle in a conscious way because they feel committed with the environment. Paper/cardboard (23.5%) and plastic (22.6%) are the most recycled material. 42.1% of people recommend environmental education activities, 40.1% labeling of containers, and the responsibility of its management should include the entire university community, being the student teachers (82.8%) and administrative staff (57,6%) the pioneers in leading this process.

  11. Repetitive transcranial magnetic stimulation as an adjuvant method in the treatment of depression: Preliminary results

    Directory of Open Access Journals (Sweden)

    Jovičić Milica

    2014-01-01

    Full Text Available Introduction. Repetitive transcranial magnetic stimulation (rTMS is a method of brain stimulation which is increasingly used in both clinical practice and research. Up-to-date studies have pointed out a potential antidepressive effect of rTMS, but definitive superiority over placebo has not yet been confirmed. Objective. The aim of the study was to examine the effect of rTMS as an adjuvant treatment with antidepressants during 18 weeks of evaluation starting from the initial application of the protocol. Methods. Four patients with the diagnosis of moderate/severe major depression were included in the study. The protocol involved 2000 stimuli per day (rTMS frequency of 10 Hz, intensity of 120% motor threshold administered over the left dorsolateral prefrontal cortex (DLPFC for 15 days. Subjective and objective depressive symptoms were measured before the initiation of rTMS and repeatedly evaluated at week 3, 6, 12 and 18 from the beginning of the stimulation. Results. After completion of rTMS protocol two patients demonstrated a reduction of depressive symptoms that was sustained throughout the 15-week follow-up period. One patient showed a tendency of remission during the first 12 weeks of the study, but relapsed in week 18. One patient showed no significant symptom reduction at any point of follow-up. Conclusion. Preliminary findings suggest that rTMS has a good tolerability and can be efficient in accelerating the effect of antidepressants, particularly in individuals with shorter duration of depressive episodes and moderate symptom severity. [Projekat Ministarstva nauke Republike Srbije, br. III41029 i br. ON175090

  12. The effect of parental involvement in CBT of anxious children: Preliminary results from a RCT study

    DEFF Research Database (Denmark)

    Esbjørn, Barbara Hoff; Breinholst, Sonja; Reinholdt-Dunne, Marie Louise

    2011-01-01

    Esbjørn, B. H., Breinholst, S., Reinholdt-Dunne, M. L., & Leth, I. (2011). The effect of parental involvement in CBT of anxious children: Preliminary results from a RCT study. Poster accepted for the Association for Behavioral and Cognitive Therapies, Toronto, Canada.......Esbjørn, B. H., Breinholst, S., Reinholdt-Dunne, M. L., & Leth, I. (2011). The effect of parental involvement in CBT of anxious children: Preliminary results from a RCT study. Poster accepted for the Association for Behavioral and Cognitive Therapies, Toronto, Canada....

  13. Preliminary Results from Second Phase Sea Testing of the Wave Dragon Prototype Wave Energy Converter

    DEFF Research Database (Denmark)

    Soerensen, Hans Chr.; Tedd, James; Friis-Madsen, Erik

    2006-01-01

    In March 2006 the prototype Wave Dragon has been redeployed to a more energetic site in Nissum Bredning an inland sea in Western Denmark. This has followed a period of renovation of many aspects of the device which have resulted in 20% higher energy output. This paper describes the preliminary...... results from this period of testing at the higher energy site....

  14. Development of kit for immunoradiometric assay of prostate specific antigen: Preliminary results

    International Nuclear Information System (INIS)

    Benzaid, A.; Boudjemai, S.; Benhidour, A.; Saada, B.

    1999-01-01

    This report presents the preliminary results obtained in the development of immunoradiometric assay of Prostate specific Antigen. The paper describes the immobilisation of anti-PSA on polystyrene beads and tubers and 125 I labelling of anti-T-PSA and f-PSA monoclonal antibodies. The obtained results were encouraging and work is in progress. (author)

  15. 75 FR 33578 - Certain Welded Carbon Steel Standard Pipes and Tubes from India: Preliminary Results of...

    Science.gov (United States)

    2010-06-14

    ...) (implementing the 1997 regulations), and Oil Country Tubular Goods from Japan: Preliminary Results of...), unchanged in Oil Country Tubular Goods from Japan: Final Results and Partial Rescission of Antidumping Duty... statistic (where all sample statistics were for five days) of ``All C&I Loans 31 365 days'' from the Federal...

  16. Guided fluorescence diagnosis of childhood caries: preliminary measures correlate with depth of carious decay

    Science.gov (United States)

    Timoshchuk, Mari-Alina; Zhang, Liang; Dickinson, Brian A.; Ridge, Jeremy S.; Kim, Amy S.; Baltuck, Camille T.; Nelson, Leonard Y.; Berg, Joel H.; Seibel, Eric J.

    2014-02-01

    The current rise in childhood caries worldwide has increased the demand for portable technologies that can quickly and accurately detect and diagnose early stage carious lesions. These lesions, if identified at an early stage, can be reversed with remineralization treatments, education, and improvements in home care. A multi-modal optical prototype for detecting and diagnosing occlusal caries demineralization in vivo has been developed and pilot tested. The device uses a 405-nm laser as a scanned illumination source to obtain high resolution and high surface contrast reflectance images, which allows the user to quickly image and screen for any signs of demineralized enamel. When a suspicious region is located, the device can be switched to perform dual laser fluorescence spectroscopy using 405-nm and 532-nm laser excitations. These spectra are used to compute an auto-fluorescence (AF) ratio of the suspicious region and the percent difference of AF ratios from a healthy region of the same tooth. The device was tested on 7 children's teeth in vivo with clinically diagnosed carious lesions. Lesion depth was then visually estimated from the video image using the 405-nm scanned light source, and within a month the maximum drill depth was assessed by a clinician. The researcher and clinicians were masked from previous measurements in a blinded study protocol. Preliminary results show that the ratiometric percent difference measurement of the AF spectrum of the tooth correlates with the severity of the demineralization as assessed by the clinician after drilling.

  17. Preliminary assessment and diagnosis of congenital discrete subaortic stenosis by using electron beam CT

    International Nuclear Information System (INIS)

    Zhou Yuan; Dai Ruping; Cao Cheng; Jing Baolian

    2003-01-01

    Objective: To evaluate the clinical efficacy of EBCT in diagnosing the congenital discrete subaortic stenosis. Methods: Data of four patients with congenital discrete subaortic stenosis diagnosed by EBCT were retrospectively analyzed and further compared with that of surgery and histopathologic examination. Results: Contrast enhanced EBCT scanning clearly demonstrated both a direct non-opacified sign in subvalvular regions in all four patients' left ventricle and associated cardiovascular anomalies. Movie mode scanning showed the movement of aortic valve and 'discrete membrane', and revealed distinct topography of subaortic outflow tracts as well. Conclusion: EBCT is highly valuable in the diagnosis of congenital discrete subaortic stenosis and associated anomalies by clearly demonstrating the subaortic outflow tract topography and complicated cardiovascular malformations. EBCT could be a complementary examination to cardioangiography, and could replace the cineangiography in the follow-up after operation

  18. 78 FR 7395 - Stainless Steel Bar From India: Preliminary Results of Antidumping Duty Administrative Review...

    Science.gov (United States)

    2013-02-01

    ... DEPARTMENT OF COMMERCE International Trade Administration [A-533-810] Stainless Steel Bar From... steel bar (SSB) from India. The period of review (POR) is February 1, 2011, through January 31, 2012... Preliminary Results of Antidumping Duty Administrative Review: Stainless Steel Bar from India'' dated...

  19. A Qualitative Study of Factors Influencing Racial Diversity in Environmental Education: Preliminary Results

    Science.gov (United States)

    Kathy James; Leo H. McAvoy

    1992-01-01

    This study presents preliminary result interviews with people of color working in environmental education and interpretation throughout the United States. The three primary questions asked were these? (1) What path led each individual to a career in environmental education; (2) How does each individual define environmentalism? and (3) What are the primary issues this...

  20. Radiation Testing on State-of-the-Art CMOS: Challenges, Plans, and Preliminary Results

    Science.gov (United States)

    LaBel, Kenneth A.; Cohn, Lewis M.

    2009-01-01

    At GOMAC 2007 and 2008, we discussed a variety of challenges for radiation testing of modern semiconductor devices and technologies [1, 2]. In this presentation, we provide more specific details in this on-going investigation focusing on out-of-the-box lessons observed for providing radiation effects assurances as well as preliminary test results.

  1. Preliminary results on the ionospheric structure at dawn time observed during HRIS campaigns

    Directory of Open Access Journals (Sweden)

    B. Zolesi

    1994-06-01

    Full Text Available Several campaigns of ionospheric vertical soundings with short-time interval between them (HRIS have been recently performed at the ionospheric station in Rome. Some preliminary results concerning periods around local sunrise are presented. A cIear fading effect, due to the defocusing phenomena in the upper ionosphere, has been observed in different seasons

  2. Preliminary results on the ionospheric structure at dawn time observed during HRIS campaigns

    OpenAIRE

    Dominici, P.; Bianchi, C.; Cander, L. R.; De Franceschi, G.; Scotto, C.; Zolesi, B.

    1994-01-01

    Several campaigns of ionospheric vertical soundings with short-time interval between them (HRIS) have been recently performed at the ionospheric station in Rome. Some preliminary results concerning periods around local sunrise are presented. A cIear fading effect, due to the defocusing phenomena in the upper ionosphere, has been observed in different seasons

  3. 78 FR 13321 - Silicon Metal From the People's Republic of China: Preliminary Results of Antidumping Duty...

    Science.gov (United States)

    2013-02-27

    ... International Trade Administration Silicon Metal From the People's Republic of China: Preliminary Results of... Commerce (``Department'') is conducting an administrative review of the antidumping duty order on silicon... notice of an opportunity to request an administrative review of the antidumping duty order on silicon...

  4. 78 FR 21107 - Circular Welded Carbon Steel Pipes and Tubes from Turkey: Preliminary Results of Countervailing...

    Science.gov (United States)

    2013-04-09

    ... Duties and Value-Added Tax (VAT) Exemptions under the Free Zones Law IV. Programs Preliminarily Determined to Not Be Used A. Stamp Duties and Fees Exemptions under the Free Zones Law B. Other Programs Not... Pipes and Tubes from Turkey: Preliminary Results of Countervailing Duty Administrative Review; Calendar...

  5. 75 FR 33772 - Polyethylene Retail Carrier Bags From Malaysia: Preliminary Results of Antidumping Duty...

    Science.gov (United States)

    2010-06-15

    ... Bags From Malaysia: Preliminary Results of Antidumping Duty Administrative Review AGENCY: Import... antidumping duty order on polyethylene retail carrier bags (PRCBs) from Malaysia. The review covers one... published in the Federal Register the antidumping duty order on PRCBs from Malaysia. See Antidumping Duty...

  6. 75 FR 25207 - Polyethylene Retail Carrier Bags From Malaysia: Extension of Time Limit for Preliminary Results...

    Science.gov (United States)

    2010-05-07

    ... Bags From Malaysia: Extension of Time Limit for Preliminary Results of Antidumping Duty Administrative... Department of Commerce (the Department) initiated an administrative review of the antidumping duty order on polyethylene retail carrier bags from Malaysia for the period August 1, 2008, through July 31, 2009. See...

  7. 77 FR 1053 - Certain Frozen Warmwater Shrimp From the Socialist Republic of Vietnam: Preliminary Results of...

    Science.gov (United States)

    2012-01-09

    ... Economy Country Status In every case conducted by the Department involving Vietnam, Vietnam has been... Shrimp From the Socialist Republic of Vietnam: Preliminary Results of Antidumping Duty New Shipper Review... antidumping duty order on certain frozen warmwater shrimp (``shrimp'') from the Socialist Republic of Vietnam...

  8. 78 FR 15699 - Certain Frozen Warmwater Shrimp From the Socialist Republic of Vietnam: Preliminary Results of...

    Science.gov (United States)

    2013-03-12

    ... 772 of the Act. Because Vietnam is a nonmarket economy within the meaning of section 771(18) of the.... Non-Market Economy Country 7. Separate Rates 8. Separate Rate Calculation 9. Vietnam-Wide Entity 10... Shrimp From the Socialist Republic of Vietnam: Preliminary Results of Antidumping Duty Administrative...

  9. 78 FR 66895 - Aluminum Extrusions From the People's Republic of China: Preliminary Results of Changed...

    Science.gov (United States)

    2013-11-07

    ... DEPARTMENT OF COMMERCE International Trade Administration [A-570-967, C-570-968] Aluminum... countervailing duty (CVD) orders on aluminum extrusions from the People's Republic of China (PRC),\\1\\ with... interested parties to comment on these preliminary results. \\1\\ See Aluminum Extrusions from the People's...

  10. 76 FR 54202 - Honey From Argentina: Preliminary Results of Antidumping Duty New Shipper Review

    Science.gov (United States)

    2011-08-31

    ... International Trade Administration Honey From Argentina: Preliminary Results of Antidumping Duty New Shipper... antidumping duty order on honey from Argentina in response to a request from Villamora S.A. (Villamora), an... American Honey Producers Association and the Sioux Honey Association (collectively, petitioners). We...

  11. 75 FR 977 - Carbazole Violet Pigment 23 From India: Preliminary Results of Countervailing Duty Administrative...

    Science.gov (United States)

    2010-01-07

    ... DEPARTMENT OF COMMERCE International Trade Administration [C-533-839] Carbazole Violet Pigment 23... countervailing duty order on carbazole violet pigment 23 (CVP-23) from India for the period January 1, 2007... production and export of CVP-23 from India. See ``Preliminary Results of Administrative Review'' section...

  12. 76 FR 26241 - Polyethylene Retail Carrier Bags From Thailand: Extension of Time Limit for Preliminary Results...

    Science.gov (United States)

    2011-05-06

    ... DEPARTMENT OF COMMERCE International Trade Administration [A-549-821] Polyethylene Retail Carrier Bags From Thailand: Extension of Time Limit for Preliminary Results of Antidumping Duty Administrative...) initiated an administrative review of the antidumping duty order on polyethylene retail carrier bags from...

  13. Preliminary results of the round-robin testing of F82H

    Energy Technology Data Exchange (ETDEWEB)

    Shiba, K.; Yamanouchi, N.; Tohyama, A.

    1996-10-01

    Preliminary results of metallurgical, physical and mechanical properties of low activation ferritic steel F82H (IEA heat) were obtained in the round-robin test in Japan. The properties of IEA heat F82H were almost the same as the original F82H.

  14. Preliminary Results of Autotuning GEMM Kernels for the NVIDIA Kepler Architecture- GeForce GTX 680

    Energy Technology Data Exchange (ETDEWEB)

    Kurzak, Jakub [Univ. of Tennessee, Knoxville, TN (United States); Luszczek, Pitor [Univ. of Tennessee, Knoxville, TN (United States); Tomov, Stanimire [Univ. of Tennessee, Knoxville, TN (United States); Dongarra, Jack [Univ. of Tennessee, Knoxville, TN (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Univ. of Manchester (United Kingdom)

    2012-04-01

    Kepler is the newest GPU architecture from NVIDIA, and the GTX 680 is the first commercially available graphics card based on that architecture. Matrix multiplication is a canonical computational kernel, and often the main target of initial optimization efforts for a new chip. This article presents preliminary results of automatically tuning matrix multiplication kernels for the Kepler architecture using the GTX 680 card.

  15. 78 FR 28192 - Polyethylene Retail Carrier Bags From Thailand: Preliminary Results of Antidumping Duty...

    Science.gov (United States)

    2013-05-14

    ... Bags From Thailand: Preliminary Results of Antidumping Duty Administrative Review; 2011-2012 AGENCY... on polyethylene retail carrier bags (PRCBs) from Thailand. The review covers 11 respondents. The... merchandise has been sold at less than normal value by the companies subject to this review. DATES: Effective...

  16. 75 FR 36359 - Polyethylene Retail Carrier Bags From Thailand: Extension of Time Limit for Preliminary Results...

    Science.gov (United States)

    2010-06-25

    ... Notice of Final Determination of Sales at Less Than Fair Value: Polyethylene Retail Carrier Bags From... Bags From Thailand: Extension of Time Limit for Preliminary Results of Antidumping Duty Administrative... polyethylene retail carrier bags from Thailand. See Antidumping Duty Order: Polyethylene Retail Carrier Bags...

  17. 75 FR 23673 - Polyethylene Retail Carrier Bags from Thailand: Extension of Time Limit for Preliminary Results...

    Science.gov (United States)

    2010-05-04

    ... Thai Plastic Bags Group (TPBG). See Notice of Final Determination of Sales at Less than Fair Value... Bags from Thailand: Extension of Time Limit for Preliminary Results of Antidumping Duty Administrative... published in the Federal Register the antidumping duty order on polyethylene retail carrier bags from...

  18. 75 FR 53953 - Polyethylene Retail Carrier Bags From Thailand: Preliminary Results of Antidumping Duty...

    Science.gov (United States)

    2010-09-02

    ...., comprise the Thai Plastic Bags Group. See Notice of Final Determination of Sales at Less than Fair Value... Bags From Thailand: Preliminary Results of Antidumping Duty Administrative Review AGENCY: Import... antidumping duty order on polyethylene retail carrier bags (PRCBs) from Thailand. The review covers five...

  19. Tc99m-Tetrofosmin and Thallium-201 SPECT imaging of pituitary tumors: Preliminary results

    International Nuclear Information System (INIS)

    Yarman, S.; Mudun, A.

    2002-01-01

    Aim: It has been reported that pituitary adenomas accumulate Thallium -201(Tl-201), Tc99m-sestamibi and In111-Octreotide. These agents maybe useful in the diagnosis and follow-up of pituitary adenomas. Tc99m-tetrofosmin also has been shown as an tumor seeking agent in various tumors. The aim of this study is to evaluate the accumulation of Tc99m-tetrofosmin in pituitary adenomas and compare the results to Tl-201 SPECT. Methods: We performed Tc99m-Tetrofosmin and Tl-201 SPECT imaging on 5 patients (pts) with pituitary tumors, 3 patients with acromegaly, 1 patient with macro prolactinoma, and 1 patient with nonfunctional tumor (1 female, 4 male, age range: 26-50). SPECT imaging of cranium were obtained 20 min after intravenous injection of 111 MBq Tl-201 and 555 MBq Tc99m-Tetrofosmin on different days with a dual head gamma camera. All but one patient had surgical therapy. One patient had medical treatment. One patient had post surgical imaging with both Tetrofosmin and Tl-201 and 2 pts had only with Thallium. Semiquantitative analysis were performed by calculating tumor to background ratio from the mean counts of the created ROI's. Results: All adenomas showed prominent uptake with both Thallium and Tetrofosmin. The mean tumor to background ratios were 2.3 (range: 1.2-4.29) with Thallium and 3.57 (range: 1.6-6.86) with Tetrofosmin. Post therapy images showed no significant uptake in pituitary region with both agents in 2 patients. Post therapy mean Thallium uptake ratio in 3 pts was 1.64. One patient with acromegaly showed no decrease in thallium uptake, but showed some decrease in tetrofosmin uptake. Conclusion: Although our patient number is limited, these preliminary results indicate that Tc99m-tetrofosmin has also strong affinity for pituitary adenomas as does Thallium, either the adenoma is functioning or non-functioning. It may have a potential value to evaluate the response to therapy

  20. Preliminary study of Alzheimer's Disease diagnosis based on brain electrical signals using wireless EEG

    Science.gov (United States)

    Handayani, N.; Akbar, Y.; Khotimah, S. N.; Haryanto, F.; Arif, I.; Taruno, W. P.

    2016-03-01

    This research aims to study brain's electrical signals recorded using EEG as a basis for the diagnosis of patients with Alzheimer's Disease (AD). The subjects consisted of patients with AD, and normal subjects are used as the control. Brain signals are recorded for 3 minutes in a relaxed condition and with eyes closed. The data is processed using power spectral analysis, brain mapping and chaos test to observe the level of complexity of EEG's data. The results show a shift in the power spectral in the low frequency band (delta and theta) in AD patients. The increase of delta and theta occurs in lobus frontal area and lobus parietal respectively. However, there is a decrease of alpha activity in AD patients where in the case of normal subjects with relaxed condition, brain alpha wave dominates the posterior area. This is confirmed by the results of brain mapping. While the results of chaos analysis show that the average value of MMLE is lower in AD patients than in normal subjects. The level of chaos associated with neural complexity in AD patients with lower neural complexity is due to neuronal damage caused by the beta amyloid plaques and tau protein in neurons.

  1. A Preliminary Study of the Suitability of Archival Bone Marrow and Peripheral Blood Smears for Diagnosis of CML Using FISH

    Directory of Open Access Journals (Sweden)

    Alice Charwudzi

    2014-01-01

    Full Text Available Background. FISH is a molecular cytogenetic technique enabling rapid detection of genetic abnormalities. Facilities that can run fresh/wet samples for molecular diagnosis and monitoring of neoplastic disorders are not readily available in Ghana and other neighbouring countries. This study aims to demonstrate that interphase FISH can successfully be applied to archival methanol-fixed bone marrow and peripheral blood smear slides transported to a more equipped facility for molecular diagnosis of CML. Methods. Interphase FISH was performed on 22 archival methanol-fixed marrow (BM and 3 peripheral blood (PB smear slides obtained at diagnosis. The BM smears included 20 CML and 2 CMML cases diagnosed by morphology; the 3 PB smears were from 3 of the CML patients at the time of diagnosis. Six cases had known BCR-ABL fusion results at diagnosis by RQ-PCR. Full blood count reports at diagnosis were also retrieved. Result. 19 (95% of the CML marrow smears demonstrated the BCR-ABL translocation. There was a significant correlation between the BCR-ABL transcript detected at diagnosis by RQ-PCR and that retrospectively detected by FISH from the aged BM smears at diagnosis (r=0.870; P=0.035. Conclusion. Archival methanol-fixed marrow and peripheral blood smears can be used to detect the BCR-ABL transcript for CML diagnosis.

  2. Results of diagnosis of pancreatic cancer by computed tomography (CT)

    Energy Technology Data Exchange (ETDEWEB)

    Kimura, K.; Okuaki, K.; Ito, M.; Katakura, T.; Suzuki, K. (Fukushima Medical Coll. (Japan))

    1981-08-01

    Results of examination of pancreatic diseases, especially pancreatic cancer, conducted by CT during the past 3 years are summarized. The EMI CT Type 5000 or 5005 were used. During the 3 years from September 1976 to August 1979, a total of 1961 patients were examined by CT, and the upper abdomen was examined in 772 of these patients. In 97 patients, positive findings were obtained in the CT image of the pancreas. In 52 of these patients, the findings were confirmed operatively or by autopsy. Though cancer of the pancreas was diagnosed by CT in 30 patients, it was confirmed in 20 by surgical operation and in 1 by autopsy. Of the 9 misdiagnosed cases, 4 were cases of infiltration of the pancreas by carcinoma of the stomach or bile duct, and the other 5 were one case each of lipoma of the abdominal wall, normal pancreas, hyperplasia of Langerhans's islets of the pancreas tail, abscess between the pancreas and the posterior wall of the stomach, and choledocholithiasis. A case diagnosed by CT as cholelithiasis was a carcinoma measuring 5 x 5 x 6 cm located on the head of the pancreas, complicated by choledocholithiasis. The 22 patients with carcinoma of the pancreas were 9 with lesions less than 3.5 x 3.0 x 3.0 cm in size who could be radically operated, 6 who underwent exploratory laparotomy or autopsy, and 7 in whom operation was impossible. False negative and false positive CT results are also discussed.

  3. Results of diagnosis of pancreatic cancer by computed tomography (CT)

    International Nuclear Information System (INIS)

    Kimura, Kazue; Okuaki, Koji; Ito, Masami; Katakura, Toshihiko; Suzuki, Kenji

    1981-01-01

    Results of examination of pancreatic diseases, especially pancreatic cancer, conducted by CT during the past 3 years are summarized. The EMI CT Type 5000 or 5005 were used. During the 3 years from September 1976 to August 1979, a total of 1961 patients were examined by CT, and the upper abdomen was examined in 772 of these patients. In 97 patients, positive findings were obtained in the CT image of the pancreas. In 52 of these patients, the findings were confirmed operatively or by autopsy. Though cancer of the pancreas was diagnosed by CT in 30 patients, it was confirmed in 20 by surgical operation and in 1 by autopsy. Of the 9 misdiagnosed cases, 4 were cases of infiltration of the pancreas by carcinoma of the stomach or bile duct, and the other 5 were one case each of lipoma of the abdominal wall, normal pancreas, hyperplasia of Langerhans's islets of the pancreas tail, abscess between the pancreas and the posterior wall of the stomach, and choledocholithiasis. A case diagnosed by CT as cholelithiasis was a carcinoma measuring 5 x 5 x 6 cm located on the head of the pancreas, complicated by choledocholithiasis. The 22 patients with carcinoma of the pancreas were 9 with lesions less than 3.5 x 3.0 x 3.0 cm in size who could be radically operated, 6 who underwent exploratory laparotomy or autopsy, and 7 in whom operation was impossible. False negative and false positive CT results are also discussed. (author)

  4. Diagnosis of choledocholithiasis and therapeutic results with endoscopic retrograde cholangiopancreatography

    International Nuclear Information System (INIS)

    Ramos Pachon, Carlos; Gonzalez Cansino, Juan; Fernandez Maderos, Irma

    2009-01-01

    A descriptive, prospective study was carried out on 451 patients that were attended for endoscopic retrograde cholangiopancreatography at CIMEQ's Hospital from January 2004-March 2006. The sample was constituted by 353 patients with choledocholithiasis suspicion. The information was search in the reports of ERCP and the variables were analyzed with the objective of evaluating the diagnostic possibilities and the therapy for choledocholithiasis by ERCP. Choledocholithiasis was detected in 1/4 of the patients with indication of ERCP, and was more frequent in patients of the female sex and in patients older than 40 years. The jaundice was the main clinical condition that motivated the ERCP in the patients with choledocholithiasis. The diagnostic effectiveness of the alkaline phosphatase and the ultrasound was not high. The treatment of the choledocholithiasis by means of ERCP showed good results and low morbidity

  5. Barkhausen Effect and Acoustic Emission in a Metallic Glass - Preliminary Results

    International Nuclear Information System (INIS)

    Lopez Sanchez, R.; Lopez Pumarega, M.I.; Armeite, M.; Piotrkowski, R.; Ruzzante, J.E.

    2004-01-01

    Magneto Acoustic Emission, which is Barkhausen Noise (BN) and Acoustic Emission (AE), depends on microstructure and existing residual stresses in magnetic materials. Preliminary results obtained by magnetization along two perpendicular directions on a metal glass foil are presented. Signals were analyzed with Statistic, Fast Fourier and Wavelet methods. Results are part of a Joint Research Project of the Faculty of Science, Cantabria University, Spain, and the Elastic Waves Group of the National Atomic Energy Commission, Argentina

  6. X-Band local area weather radar--preliminary calibration results.

    Science.gov (United States)

    Jensen, N E

    2002-01-01

    DHI has developed a cost-effective X-Band Local Area Weather Radar (LAWR) with a typical range (radius) of 60 km, 500 x 500 m areal resolution and 253 reflection levels. The development is performed in a co-operation with a number of European partners, including Danish Meteorological Institute. The specifications of the weather radar and preliminary results from the calibration are presented. Good calibration results have been obtained using high-resolution rain gauges.

  7. Preliminary results of natural radioactivity measurements in the southern part of Ethiopia.

    Science.gov (United States)

    Wollel Tiruneh, Getachew; Wodaje Kebede, Worku

    2008-11-01

    The paper presents the first results of natural radioactivity measurements in the Southern part of Ethiopia (Bale Zone-Oromiya Regional State). The preliminary results indicate that radiation levels in the mining areas of Kallido Mountain are elevated compared with those in the town of Negele Borena (background area). Both external gamma radiation and alpha surface contamination levels are significantly elevated above local background levels.

  8. Vapour explosions (fuel-coolant interactions) resulting from the sub-surface injection of water into molten metals: preliminary results

    International Nuclear Information System (INIS)

    Asher, R.C.; Bullen, D.; Davies, D.

    1976-03-01

    Preliminary experiments are reported on the relationship between the injection mode of contact and the occurrence and magnitude of vapour explosions. Water was injected beneath the surface of molten metals, chiefly tin at 250 to 900 0 C. Vapour explosions occurred in many, but not all, cases. The results are compared with Dullforce's observations (Culham Report (CLM-P424) on the dropping mode of contact and it appears that rather different behaviour is found; in particular, the present results suggest that the Temperature Interaction Zone is different for the two modes of contact. (author)

  9. The role of gamma probe activity counts in minimally invasive parathyroidectomy. Preliminary results

    Energy Technology Data Exchange (ETDEWEB)

    Bekis, R.; Aydin, A.; Tasci, C.; Durak, H. [Dept. of Nuclear Medicine, Dokuz Eyluel Univ. School of Medicine, Izmir (Turkey); Atila, K.; Kocdor, M.A.; Sevinc, A.; Harmancioglu, Oe. [Dept. of Surgery, Dokuz Eyluel Univ. School of Medicine, Izmir (Turkey); Canda, S. [Dept. of Pathology, Dokuz Eyluel Univ. School of Medicine, Izmir (Turkey)

    2004-12-01

    Aim: The benefit of preoperative gamma probe in the diagnosis of adenoma in patients with histopathologically proven parathyroid (PT) adenomas was examined. Patients, material, methods: 20 patients with positive {sup 99m}Tc MIBI uptake in PT scintigraphy with primary hyperparathyroidism were enrolled in this study. 740 MBq {sup 99m}Tc MIBI were injected 3 h before operation. Counts of four PT regions were obtained with gamma probe before surgery in the operation room. All suspected PT adenomas were resected and histopathologically diagnosed as adenomas. We also obtained counts of the resection region and the resected adenoma with gamma probe after the parathyroidectomy. Preoperative counts of adenoma bearing regions (ABR), non-adenoma bearing regions (NABR), postoperative resection region (PRR), resected adenoma counts (RA) were registered. Statistical analysis was performed by Wilcoxon rank test. Results: The mean counts of ABR, NABR, the PRR and RA were 462{+-}106, 230{+-}66, 164{+-}42, 374{+-}87, respectively. The mean counts from ABR were twofold higher than those of NABR. The PRR mean counts decreased by 64% when compared to the mean counts of ABR and by 55% when compared to the mean counts of RA. The differences in mean counts of ABR and NABR, PRR and ABR, PRR and RA (p<0.01) turned out as statistically significant. Discussion: According to our preliminary results, the region with the highest counts is at least 2{+-}0,4 times higher than the mean of the other three PT regions. Thus, it seems to be significant for PT adenoma. Resection of adenoma may be accepted as successful, if the count of ABR decreased more than 64% with decreased postoperative parathoromone levels. Conclusion: This technique should not yet be applied instead of parathormone measurement or frozen technique. But it may replace the frozen technique used for confirmation of the diagnosis during the operation in the future. (orig.) [German] Ziel: Der Vorteil der praeoperativen Sondermessung

  10. Specialized treatment for Avoidant personality disorder (AvPD): Treatment rationales and preliminary results

    DEFF Research Database (Denmark)

    Simonsen, Sebastian

    and preliminary results from a specialized psychotherapy program developed for patients with AvPD treated at Stolpegaard Psychotherapy Centre, Capital Region of Denmark. Methods: Treatment consists of individual therapy based on Metacognitive Interpersonal Therapy (MIT) while group therapy is a modified form......½-years of therapy. We focus on how patients change in regards to important outcomes, including both acute symptoms and more personality based problems such as self-reflection, interpersonal problems and ability to describe feelings. Conclusions: Consistency of results with regard to theories about Av...... naturalistic study, we followed patients from start to end of psychotherapy on a range of self-report measures including the SCL-90-R, IIP-C, SIPP-118 and TAS-20. Results: In this preliminary report, we report findings from various time points of therapy: Baseline, 6 months, 12 months and after approximately 1...

  11. National Data Center Preparedness Exercise 2015 (NPE 2015): MY-NDC Preliminary Analysis Result

    International Nuclear Information System (INIS)

    Faisal Izwan Abdul Rashid; Muhammed Zulfakar Zolkaffly

    2016-01-01

    Malaysia has established the CTBT National Data Centre (MY-NDC) in December 2005. MY-NDC is tasked to perform Comprehensive Nuclear-Test-Ban-Treaty (CTBT) data management as well as provide information for Treaty related events to Nuclear Malaysia as CTBT National Authority. In 2015, MY-NDC has participated in the National Data Centre Preparedness Exercise 2015 (NPE 2015). This paper aims at presenting MY-NDC preliminary analysis result of NPE 2015. In NPE 2015, MY-NDC has performed five different analyses, namely, radionuclide, atmospheric transport modelling (ATM), data fusion, seismic analysis and site forensics. The preliminary findings show the hypothetical scenario in NPE 2015 most probably is an uncontained event resulted high release of radionuclide to the air. (author)

  12. Vesico-ureteral reflux: diagnosis and staging with voiding color doppler US Preliminary experience

    Energy Technology Data Exchange (ETDEWEB)

    Farina, Renato; Arena, Carmela; Pennisi, Francesco; Di Benedetto, Vincenzo; Politi, Guido; Di Benedetto, Aurelio

    2000-07-01

    Introduction: The aim of this study is to assess the accuracy of a new US examination: 'voiding color Doppler US ' in the early diagnosis and staging of vesico-ureteral reflux (VUR). The contrast agent US was SH U 508A (Levovist, Schering, Berlin), which produces a chromatic accentuation of the signals picked up by the color Doppler US. Eighteen patients (10 females, eight males) were recruited for the study. In two patients a second examination was performed for follow-up after a VUR conservative therapy. All patients were taken under examination for the evaluation of possible VUR. In all patients the voiding color Doppler US was followed by voiding cystourethrography (VCUG) and the data obtained were compared. Materials and methods: A total of 18 patients aged between 3 months and 10 years, were recruited for the study. The results of the examination were the following: urinary tract infections, follow-up of VUR after conservative or surgical therapy, miscellaneous indications. Voiding color Doppler US was performed, followed by a VCUG. The voiding color Doppler US consists in the trans-catheter introduction of a contrast agent SHU 508 A (Levovist, Schering, Ag. Berlin) into the bladder and a subsequent test with the color Doppler US to show or exclude the presence of reflux into the ureters and/or into the pyelo-caliceal cavity of the kidneys. After the introduction of the contrast agent US the ultrasound scanning of the bladder, the ureters and the pyelo-caliceal cavity was performed to examine the reflux degree. The ultrasonographic investigations were perfomed with AU 590 asyncronus US (Esaote Biomedica, Genova) with a 3.5 MHz convex probe. Results: After the trans-catheter introduction of the contrast agent US, vesico-ureteral reflux occured in 13 patients (77.2%). The reflux degree was also measured by means of ultrasound and was later confirmed by VCUG. The mean times of each examination were as follows: initial US, 10 min; catheterization, 8 min

  13. The preliminary study of 18F-FDG brain PET in diagnosis of alzheimer's disease

    International Nuclear Information System (INIS)

    Ma Yunchuan; Zhang Xinqing; Li Depeng; Shang Jianwen; Su Yusheng; Zhang Linying; Peng Cheng; Pan Zhongyun

    2000-01-01

    Objective: To investigate the imaging characteristics and diagnostic criteria of 18 F-FDG brain PET in diagnosis of Alzheimer's disease (AD). Methods: The sutdy included 12 normal subjects, 12 patients with AD and 11 patients with non-AD dementia. 40 min after intravenous administration of 18 F-FDG, brain scan was performed using Siemens ECAT47 scanner. The transaxial, coronal and sagittal images were then reconstructed by computer. At the same time, semiquantitative analysis was also applied to help evaluation using the ratio of mean radioactivity of cerebral lobe to cerebellum (R cl/cb ). Results: In normal subjects PET scan showed clear images of cerebral cortex, basal ganglia, thalamus and cerebellum with symmetrical distribution of radioactivity. PET images from Alzheimer's disease patients were classified into 3 patterns: bilateral parietal hypometabolism in 5 cases, bilateral temporo-parietal hypometabolism in 4 cases and unilateral temporo-parietal hypometabolism in 3 cases. The R cl/cb of AD patients in parietal and temporal lobe was significantly decreased than normal subjects (P cl/cb was also reflecting thedementia degree. Compared with MRI imaging , 12 patients with AD had cerebral hypometabolism but only 10 had hippocampus atrophy. 10 patients with non-AD dementia had local structural foci seen in MRI, including old hemorrhage, infarction and encephalomalacia, but these lesions were not found in AD. Conclusions: Based on excluding cerebral structural lesions which are better detected by MRI, bilateral or unilateral parietal or temporo-parietal hypometabolism found in FDG PET can be considered indicative of Alzheimer's disease. Semiquantitative analysis of the images yielded can help to evaluate the dementia degree

  14. Investigation of polarized-proton target materials by differential calorimetry: preliminary results

    International Nuclear Information System (INIS)

    Hill, D.A.; Hill, J.J.

    1980-01-01

    A simple differential calorimeter was designed and operated for an investigation of the thermodynamic properties of polarized target materials. The calibration and use of the calorimeter are discussed, after a brief exposition of our motivation for this work. The results of a preliminary study of target materials is presented with emphasis on the relevance of the glass state to dynamic polarization in chemically-doped targets

  15. Facial emotional recognition in schizophrenia: preliminary results of the virtual reality program for facial emotional recognition

    OpenAIRE

    Souto,Teresa; Baptista,Alexandre; Tavares,Diana; Queirós,Cristina; António,Marques

    2013-01-01

    BACKGROUND: Significant deficits in emotional recognition and social perception characterize patients with schizophrenia and have direct negative impact both in inter-personal relationships and in social functioning. Virtual reality, as a methodological resource, might have a high potential for assessment and training skills in people suffering from mental illness. OBJECTIVES: To present preliminary results of a facial emotional recognition assessment designed for patients with schizophrenia,...

  16. The RPC-based IFR system at BaBar experiment preliminary results

    CERN Document Server

    Piccolo, D; Bagnasco, S; Baldini, R; Band, H R; Bionta, R; Buzzo, A; Calcaterra, A; Cavallo, N; Contri, R; Crosetti, G; De Nardo, Gallieno; De Sangro, R; Fabozzi, F; Falciai, D; Finocchiaro, G; Gatto, C; Johnson, J; Lista, L; Lo Vetere, M; Macri, M; Monge, R; Palano, A; Paolucci, P; Passaggio, S; Patrignani, C; Patteri, P; Peruzzi, I; Piccolo, M; Robutti, E; Santroni, A; Sciacca, C; Wright, D; Yu, Z; Zallo, A

    2002-01-01

    The IFR system is a RPC-based detector used to identify muons and neutral hadrons in the BaBar experiment at PEP II machine in SLAC. The RPC system can be used to reconstruct the trajectory of muons, pions and neutral hadrons interacting in the iron of the IFR. The different range and hit pattern allow to discriminate different particles crossing the IFR. An overview of the system design and the preliminary results on the IFR performances are reported.

  17. The RPC-based IFR system at BaBar experiment: preliminary results

    International Nuclear Information System (INIS)

    Piccolo, Davide; Palano, A.; Bagnasco, S.; Buzzo, A.; Contri, R.; Crosetti, G.; Lo Vetere, M.; Macri, M.; Monge, R.; Passaggio, S.; Patrignani, C.; Robutti, E.; Santroni, A.; Anulli, F.; Baldini, R.; Calcaterra, A.; De Sangro, R.; Falciai, D.; Finocchiaro, G.; Patteri, P.; Peruzzi, I.; Piccolo, M.; Yu, Z.; Zallo, A.; Cavallo, N.; De Nardo, G.; Fabozzi, F.; Gatto, C.; Lista, L.; Paolucci, P.; Sciacca, C.; Bionta, R.; Wright, D.; Band, H.; Johnson, J.

    2002-01-01

    The IFR system is a RPC-based detector used to identify muons and neutral hadrons in the BaBar experiment at PEP II machine in SLAC. The RPC system can be used to reconstruct the trajectory of muons, pions and neutral hadrons interacting in the iron of the IFR. The different range and hit pattern allow to discriminate different particles crossing the IFR. An overview of the system design and the preliminary results on the IFR performances are reported

  18. Small-angle neutron scattering investigations of Co-doped iron oxide nanoparticles. Preliminary results

    Science.gov (United States)

    Creanga, Dorina; Balasoiu, Maria; Soloviov, Dmitro; Balasoiu-Gaina, Alexandra-Maria; Puscasu, Emil; Lupu, Nicoleta; Stan, Cristina

    2018-03-01

    Preliminary small-angle neutron scattering investigations on aqueous suspensions of several cobalt doped ferrites (CoxFe3-xO4, x=0; 0.5; 1) nanoparticles prepared by chemical co-precipitation method, are reported. The measurements were accomplished at the YuMO instrument in function at the IBR-2 reactor. Results of intermediary data treatment are presented and discussed.

  19. Intervention to reduce procrastination in first-year students: Preliminary results from a Norwegian study

    OpenAIRE

    Nordby, Kent; Wang, Catharina Elisabeth Arfwedson; Dahl, Tove Irene; Svartdal, Frode

    2016-01-01

    Published version. Source at https://doi.org/10.15714/scandpsychol.3.e10 This paper reports preliminary results from a brief intervention designed to reduce academic procrastination. Students enrolled in an introductory psychology course received lectures and seminar sessions about procrastination and its causes and consequences. Students who were enrolled in an introductory psychology course received lectures and seminar sessions about procrastination and its causes and consequences, as...

  20. A new gas stripper system for BARC-TIFR Pelletron Accelerator facility: installation and preliminary results

    International Nuclear Information System (INIS)

    Sharma, S.C.; Ninawe, N.G.; Yadav, M.L.; Ekambaram, M.; Ramjilal; Matkar, U.V.; Ansari, Q.N.; Lokare, R.N.; Ramlal; Gupta, A.K.; Bhagwat, P.V.; Pillay, R.G.

    2009-01-01

    The gas-stripper plays a key role in stripping the heavy and molecular ion beams in a tandem accelerator. Efficiency of gas stripper depends on its supporting vacuum pumps. A new recirculating turbo molecular pump-based gas stripper has been installed in the high voltage terminal of Pelletron Accelerator. Re-circulating the stripper gas reduces the flow of gas into the accelerating tubes reducing the transmission losses. Preliminary results obtained using the new gas stripper system are discussed. (author)

  1. Preliminary results from MBE-4: a four beam induction linac for heavy ion fusion research

    International Nuclear Information System (INIS)

    Fessenden, T.J.; Judd, D.L.; Keefe, D.; Kim, C.; Laslett, L.J.; Smith, L.; Warwick, A.I.

    1986-05-01

    Preliminary results are presented from a scaled experimental multiple beam induction linac. This experiment is part of a program of accelerator research for heavy ion fusion. It is shown that multiple beams can be accelerated without significant mutual interaction. Measurements of the longitudinal dynamics of a current-amplifying induction linac are presented and compared to calculations. Coupling of transverse and longitudinal dynamics is discussed

  2. Preliminary results of new 50 MHz doppler radar experiment at Syowa Station

    OpenAIRE

    Ogawa,Tadahiko; Igarashi,Kiyoshi; Ose,Masami; Kuratani,Yasukazu; Fujii,Ryoichi; Hirasawa,Takeo

    1983-01-01

    A 50 MHz doppler radar newly installed at Syowa Station in 1982 is characterized by the narrow antenna beams (4°in the horizontal plane) in two different directions (approximately geomagnetic and geographic south), the three operation modes (spectrum, double-pulse and meteor mode) and the minicomputer for both real time data processing and radar control. This paper aims to check up many functions given to the radar system by presenting some preliminary results obtained at a very early stage o...

  3. Evaluation of Outcome- Prenatal Diagnosis Indication and Results Suitability in Families Referred to our Laboratory For Prenatal Diagnosis

    Directory of Open Access Journals (Sweden)

    Ayşegül Türkyılmaz

    2007-01-01

    Full Text Available Since our aim is to establish the importance, necessity and concept of prenatal diagnosis in our region and supply routine service at a stage which we admit as a transitional period for application, all of the materials of amniocentesis, cordocentesis and corion villi sample referred to laboratories were evaluated without refusal.When we examined prenatal diagnoses of these specimens, we found Down Risk (according to triple test result in 164 specimens (%34, fetal anomaly risk in 122 (%25, advanced age in 69 (%14 poor-obstetric anamnesis in 27(%5, Down Syndrome- infant history in 20 (%4, family request in 17, and habitual abortus (%3 etc. in specimens. Lymphocyte Culture prepared in duplicate for each specimen and chromosome were obtained from total of ten slides for each specimen. Slides were stained with Giemsa Banding Technic (GTG Banding. Total (10x481 4810 slides were evaluated for diagnosis.There were no false positive and false negative results.

  4. [Operative treatment of flexor pollicis longus tendon with Krackow suture, functional results--preliminary results].

    Science.gov (United States)

    Bumbasirević, Marko Z; Andjelković, Sladjana; Lesić, Aleksandar R; Sudjić, Vojo S; Palibrk, Tomislav; Tulić, Goran Dz; Radenković, Dejan V; Bajec, Djordje D

    2010-01-01

    Surgical treatment of the injuried flexor tensons is the important part of hand surgery. Tendon adhesions, ruptures, joint contcatures-stifness are only one part of the problem one is faced during the tendon treatment. In spite of improvement in surgical technique and suture material, the end result of sutured flexor tendons still represent a serious problem. To present of operative treatment of flexor pollicis longus injury with Krakow suture technique. All patients are treated in the first 48 hours after the accident. The regional anesthesia was performed with use of turniquet. Beside spare debridement, the reconstruction of digital nerves was done. All patients started with active and pasive movements-excercises on the first postoperative day. Follow-up was from 6 to 24 months. In evaluation of functional recovery the grip strenght, pinch strenght, range of movements of interphalangeal and metacarpophalangeal joiht and DASH score were used. In the last two years there were 30 patients, 25 males (83.33%) and 5 females (16.66%). Mean age was 39.8 years, ranged from 17 to 65 years. According to mechanism of injury the patients were divided in two groups: one with sharp and other with wider zone of injury. Concomitant digital nerve lesions was noticed in 15 patients (50%). the Krackow sutrue allowed early rehabilitation, which prevent tendon adhesions, enabled faster and better functional recovery.

  5. Case based reasoning applied to medical diagnosis using multi-class classifier: A preliminary study

    Directory of Open Access Journals (Sweden)

    D. Viveros-Melo

    2017-02-01

    Full Text Available Case-based reasoning (CBR is a process used for computer processing that tries to mimic the behavior of a human expert in making decisions regarding a subject and learn from the experience of past cases. CBR has demonstrated to be appropriate for working with unstructured domains data or difficult knowledge acquisition situations, such as medical diagnosis, where it is possible to identify diseases such as: cancer diagnosis, epilepsy prediction and appendicitis diagnosis. Some of the trends that may be developed for CBR in the health science are oriented to reduce the number of features in highly dimensional data. An important contribution may be the estimation of probabilities of belonging to each class for new cases. In this paper, in order to adequately represent the database and to avoid the inconveniences caused by the high dimensionality, noise and redundancy, a number of algorithms are used in the preprocessing stage for performing both variable selection and dimension reduction procedures. Also, a comparison of the performance of some representative multi-class classifiers is carried out to identify the most effective one to include within a CBR scheme. Particularly, four classification techniques and two reduction techniques are employed to make a comparative study of multiclass classifiers on CBR

  6. Preliminary fast diagnosis of severe fever with thrombocytopenia syndrome with clinical and epidemiological parameters.

    Science.gov (United States)

    Hu, Jianli; Li, Zhifeng; Hong, Lei; Bao, Changjun; Zhang, Zhong; Zhang, Hongying; He, Hao; Wang, Xiaochen; Liu, Wendong; Peng, Zhihang; Shi, Limin; Zhu, Fengcai

    2017-01-01

    To identify specific clinical and epidemiological parameters for clinical diagnosis of SFTSV infection with relatively higher accuracy. 231 suspected cases of SFTS were reported by various medical institutions from 2011 to 2013 in Jiangsu Province, China. They were followed with SFTSV diagnosis tests and interview-administered questionnaires about demographic characteristics, clinical symptoms and epidemiological exposure factors. Univariate and multivariable logistic regression analysis were used to examine the diagnostic value of these parameters. SFTSV infection occurred only from April to October annually and usually in hilly areas of specific regions. Three prediction models of SFTSV infection were constructed. Model 3 with clinical and epidemiological parameters combined the benefits of both Model 1and Model 2, which was optimal and had an overall accuracy of 80.2%. Independent indicators for clinical diagnosis of SFTSV infection in Model 3 were as follows: lymphadenopathy (P = 0.01), leucopenia (P50 years (P = 0.01), tick bites (Pdiagnosis as differentiating SFTSV infection from SFTS-like diseases, thus reducing the risk of misdiagnosis.

  7. Radon and radon daughters' concentration in spring and wells waters from Presidente Prudente: preliminary results

    International Nuclear Information System (INIS)

    Osorio, Ana Maria Araya; Saenz, Carlos Alberto Tello; Pereira, Luiz Augusto Stuani

    2009-01-01

    This work presents the preliminary results about the concentration of radon and radon daughters in wells and springs water from Presidente Prudente. Six water samples were studied: three from well-water, two from springs water and one from potable water. For the determination of α-activity the samples were placed inside plastic containers where the CR-39 tracks detectors were outside the water. The track density of α-particles were measured by using optical microscopy. The results show that one sample from well-water presented higher concentration of radon and radon daughters than the other samples. (author)

  8. Preliminary Experimental Results for Indirect Vector-Control of Induction Motor Drives with Forced Dynamics

    Directory of Open Access Journals (Sweden)

    Jan Vittek

    2003-01-01

    Full Text Available The contribution presents an extension of indirect vector control of electric drives employing induction motors to 'Forced Dynamic Control'. This method of control offers an accurate realisation of dynamic response profiles, which can be selected by the user. The developed system can be integrated into a drive with a shaft position encoder or a shaft sensoriess drive, in which only the stator currents are measured. The applied stator voltages are determined by a computed inverter switching algorithm. Simulation results and preliminary experimental results for indirect vector control of an idle running induction motor indicate good agreement with the theoretical predictions.

  9. Preliminary results of measurements of unattached fraction of radon progeny in Polish coal mines

    International Nuclear Information System (INIS)

    Skubacz, K.; Lebecka, J.; Michalik, B.; Reineking, A.

    1996-01-01

    The aim of this work was better recognizing and understanding of the radiation exposure of miners in underground coal mines. Within the project supported by EC we have built an equipment for measurements of unattached fraction of radon daughters. We performed measurements of unattached fraction of radon daughters in two chosen mines using the built equipment. Preliminary results of measurements performed in 14 place in two mines show that in some places the unattached fraction of radon progeny is higher than 5% known from literature. These results also indicate, that it seems to be a relation between the concentration of unattached fraction and between the humidity of air and respirable dust concentration. (author)

  10. 78 FR 57352 - Certain Frozen Warmwater Shrimp From the Socialist Republic of Vietnam: Preliminary Results of Re...

    Science.gov (United States)

    2013-09-18

    ...: Preliminary Results of Re-conducted Administrative Review of Grobest & I-Mei Industrial (Vietnam) Co., Ltd... & I-Mei Industrial (Vietnam) Co., Ltd. (``Grobest''). The Department has also preliminarily determined... directly on the internet at http://www.trade.gov/ia/ . The signed Preliminary Decision Memorandum and the...

  11. History of Concepts and the Historiography of the Independence of Brazil: A Preliminary Diagnosis.

    Science.gov (United States)

    Pimenta, O Paulo

    2018-01-01

    The aim of this article is to discuss the history of the Independence of Brazil by highlighting the historiographical approaches from the so-called "History of Concepts," which in the current Brazilian historiography are related to a German intellectual branch, but often articulated to other approaches that can be referred to as intellectual history, history of languages and of political discourses. It offers a brief overview of the historiography of Independence in the nineteenth and twentieth centuries, through to the diagnosis of their basic lineages, then it discusses current conceptual approaches. The conclusion indicates five points to contribute to a better understanding of the Independence of Brazil.

  12. A Preliminary Trial on the Use of Barium Chloride for Pregnancy Diagnosis in Sows

    Directory of Open Access Journals (Sweden)

    Ndu, A.

    2000-01-01

    Full Text Available Urine was collected twice daily (once in the morning and once in the afternoon for 5 days from 80 Yorkshire x Landrace crossbred gilts/sows made up of 40 non-pregnant and 40 pregnant pigs in an investigation to determine the possibility of using 1 % barium chloride solution for pregnancy diagnosis in pigs based on a previous report that addition of a few drops of 1 % barium chloride solution to bovine urine caused a white precipitate with non-pregnant but not with pregnant cows. The pregnant pigs were in various stages of gestation. Urine reaction to 1 % barium chloride was highly (P <0.01 dependent on the pregnancy status of the sows, the test being 100 % and 81 % effective in identifying non-pregnant and pregnant sows respectively. The sensitivity of the test in the gravid sows was significantly (P <0.05 influenced by and tended to increa-se with the stage of gestation, with 59 % of the sows in their first stage of gestation (<38 days post-coitum being correctly diagnosed as pregnant, and 95-100 % of those in their latter stages of gestation being so correctly diagnosed. Parity and time of day of performance of the test had no effect on urine reaction. It was concluded that the test was at least 95 % accurate when used as from about 39 days after breeding for pregnancy diagnosis in sows.

  13. CT in the diagnosis of abdominal wall hernias: a preliminary study

    Energy Technology Data Exchange (ETDEWEB)

    Hoejer, A.M.; Jess, P. [Department of Surgery, Roskilde County Hospital Koege, DK-4600 Koege (Denmark); Rygaard, H. [Department of Radiology, Roskilde County Hospital Koege, DK-4600 Koege (Denmark)

    1997-12-01

    The aim of the study was to estimate the value of CT in the diagnosis of abdominal wall hernias and at the same time to create a standard for this CT investigation. Twenty-four patients with suspected hernia of the abdominal wall were examined. All were operated on. The CT scans were assessed by two radiologists to estimate the interobserver variation. The CT diagnoses made by the two radiologists were correct in 83 % and 79 % of cases, respectively. The sensitivity was 0.83 in both CT evaluations and the specificity was 0.83 and 0.67, respectively. The predictive value of a positive CT finding was 0.94 and 0.88, while the predictive value of a negative CT finding was 0.63 and 0.57, respectively. The interobserver variation (kappa) was 0.87. The study therefore indicates that a positive CT finding of abdominal wall hernia is reliable, while a negative finding does not exclude the diagnosis. The interobserver variation of the CT diagnoses is acceptable. To achieve the highest diagnostic accuracy, it is recommended to always use the Valsalva manoeuvre, oral intake of contrast and 10/10 mm CT slices. (orig.) With 3 figs., 1 tab., 7 refs.

  14. Design and preliminary results of a fuel flexible industrial gas turbine combustor

    Science.gov (United States)

    Novick, A. S.; Troth, D. L.; Yacobucci, H. G.

    1981-01-01

    The design characteristics are presented of a fuel tolerant variable geometry staged air combustor using regenerative/convective cooling. The rich/quench/lean variable geometry combustor is designed to achieve low NO(x) emission from fuels containing fuel bound nitrogen. The physical size of the combustor was calculated for a can-annular combustion system with associated operating conditions for the Allison 570-K engine. Preliminary test results indicate that the concept has the potential to meet emission requirements at maximum continuous power operation. However, airflow sealing and improved fuel/air mixing are necessary to meet Department of Energy program goals.

  15. A combination of preliminary results on gauge boson couplings measured by the LEP Experiments

    CERN Document Server

    CERN. Geneva

    2004-01-01

    This note presents a combination of published and preliminary measurements of triple gauge boson couplings (TGCs) and quartic gauge boson couplings (QGCs) from the four LEP experiments. We give an updated combination of the charged TGCs, g1z, kg and lg in single and multi-parameter fits. Updated results from the QGCs from the ZZgg vertex, ac/Lambda^2 and a0/Lambda^2, are given as well. The combinations of neutral TGCs hiv anf fiv are also presented, including an updated fiv combination.

  16. Preliminary results from a novel CVD diamond detector system for molecular imaging applications

    International Nuclear Information System (INIS)

    Mahon, A.R.

    1996-01-01

    A novel biomolecular imaging system incorporating a Chemical Vapour Deposition diamond detector is in development. The synthetic diamond is used as a UV detector to image nucleic acids in electrophoresis gels. The microstrip diamond detector currently has a spatial resolution of 30 μm. Preliminary results are presented which include: QE measurements of diamond detectors, detector time response, detector UV response and current detection limits of biomolecules in gel. The potential applications of the technology, and its significant advantages in speed and sensitivity over the current systems are discussed

  17. Head teacher professional networks in Italy: preliminary results of a national survey

    Directory of Open Access Journals (Sweden)

    Maurissens Isabel de

    2016-06-01

    Full Text Available In this article, we present the preliminary results of a national survey conducted by INDIRE on head teachers communities and professional networks. About one-fourth of the total population of Italian public school leaders participated in the survey. One of the main intents of this research is to contribute to understanding of the phenomenon of professional networks frequented by school leaders and to pave the way for a further reflection on how to use such networks for head teachers’ training so as to support their daily professional practice conducted too often in isolation.

  18. Preliminary Results on the Experimental Investigation of the Structure Functions of Bound Nucleons

    Energy Technology Data Exchange (ETDEWEB)

    Bodek, Arie [Univ. of Rochester, NY (United States); Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)

    2016-08-01

    We present preliminary results on an experimental study of the nuclear modification of the longitudinal ($\\sigma_L$) and transverse ($\\sigma_T$) structure functions of nucleons bound in nuclear targets. The origin of these modifications (commonly referred as as the EMC effect) is not fully understood. Our measurements of R= $\\sigma_L / \\sigma_T$ for nuclei ($R_A$) and for deuterium ($R_D$) indicate that nuclear modifications of the structure functions of bound nucleons are different for the longitudinal and transverse structure functions, and that contrary to expectation from several theoretical models, $R_A< R_D$.

  19. Natural Gamma Emitters after a Selective Chemical Separation of a TENORM residue: Preliminary Results

    International Nuclear Information System (INIS)

    Alves de Freitas, Antonio; Abrao, Alcidio; Godoy dos Santos, Adir Janete; Pecequilo, Brigitte Roxana Soreanu

    2008-01-01

    An analytical procedure was established in order to obtain selective fractions containing radium isotopes ( 228 Ra), thorium ( 232 Th), and rare earths from RETOTER (REsiduo de TOrio e TErras Raras), a solid residue rich in rare earth elements, thorium isotopes and small amount of natural uranium generated from the operation of a thorium pilot plant for purification and production of pure thorium nitrate at IPEN -CNEN/SP. The paper presents preliminary results of 228 Ra, 226 Ra, 238 U, 210 Pb, and 40 K concentrations in the selective fractions and total residue determined by high-resolution gamma spectroscopy, considering radioactive equilibrium of the samples

  20. Preliminary results from the U.S. participation in the 2000 Beam Park Experiment

    Science.gov (United States)

    Stansbery, Gene

    2001-10-01

    The United States participated in the 2000 Beam Park Experiment (BPE) conducted in late October, 2000 under the auspices of the Inter-Agency Space Debris Coordination Committee (IADC). The U.S. participated using several sensors which have participated in previous campaigns: Haystack, TRADEX, and COBRA DANE radars, and the Liquid Mirror Telescope. New to the BPE experiments this time are the GBR-P radar located at Kwajalein Atoll and the Haystack Auxiliary (HAX) radar located in Massachusetts. This paper will present and discuss preliminary results from each of the participating U.S. sensors.

  1. Preliminary results of Lean method implementation in a pathology lab from Northeastern Brazil

    Directory of Open Access Journals (Sweden)

    Josiane S. Quetz

    2015-02-01

    Full Text Available Oncologic care shows a growing and unmet demand, and requires the search for alternatives that allow the efficient use of limited resources, the building of autonomy, and the endeavour for continuous improvement of processes. In the present work, we present the implementation of Lean philosophy at a pathology laboratory of an oncology hospital. Among the preliminary results, we highlight the redefinition of the dynamics of the staff, and the physical reorganization of the area. Such important changes culminated in an expressive reduction of lead time, even with a significant increase in the monthly load of exams.

  2. Postmortem study of stable carbon isotope ratios in human cerebellar DNA: preliminary results

    International Nuclear Information System (INIS)

    Slatkin, D.N.; Irsa, A.P.; Friedman, L.

    1978-01-01

    It is observed that 13 C/ 12 C ratios in tissue specimens removed postmortem in the United States and Canada are significantly different from corresponding ratios in European specimens. On the basis of this information, measurements of carbon isotope ratios in DNA isolated from cerebella of native-born and European-born North Americans are in progress with the goal of estimating the average lifetime rate of DNA turnover in human neurons. Preliminary results from twenty postmortem examinations are consistent with the hypothesis that a significant proportion of human cerebellar DNA is renewed during the lifetime of an individual

  3. Quaternary sedimentation and active faulting along the Ecuadorian shelf: preliminary results of the ATACAMES Cruise (2012)

    Science.gov (United States)

    Michaud, F.; Proust, J. N.; Collot, J. Y.; Lebrun, J. F.; Witt, C.; Ratzov, G.; Pouderoux, H.; Martillo, C.; Hernández, M. J.; Loayza, G.; Penafiel, L.; Schenini, L.; Dano, A.; Gonzalez, M.; Barba, D.; De Min, L.; Ponce, G.; Urresta, A.; Calderon, M.

    2015-03-01

    Selected high-resolution seismic-reflection profiles and multibeam bathymetry acquired along the convergent Ecuador margin during the ATACAMES cruise on onboard the R/V L'Atalante (Jan.15-Feb.18, 2012) allow a preliminary evaluation of the neotectonic development and stratigraphic evolution of the margin based on the sismo-stratigraphic analysis of Quaternary sediment preserved on the margin shelf and upper slope. We present three major preliminary results. (1) The evolution of the Esmeraldas, Guayaquil and Santa Elena canyons. The head of the Esmeraldas canyon is the location of a continuous significant sediment transport. The Guayaquil canyon shows several episodes of deposition and incision. Aggrading sedimentation pattern in the canyon records several changes in relative sea-level. The subsidence of the Gulf of Guayaquil probably contributes to the good preservation of the canyon filling stages. The Santa Elena canyon is controlled by a SW-NE trending normal fault. (2) Variations of sediment accumulation and relative vertical motions are shown along-strike the shelf edge. Offshore the uplifted Manta peninsula, a pronounced subsidence of the shelf edge is documented by sedimentary clinoforms that have deposited in a morphological reentrant, and have migrated upslope testifying of a local subsidence meanwhile the adjacent La Plata Island area underwent uplift. In the Esmeraldas canyon area, a local uplift of the shelf is documented. (3) Two neotectonic fault systems with a possible transcurrent component are imaged across the shelf edge and upper margin slope offshore Jama, and Cape Galera. This possible transcurrent motion could be related to the reactivation of ancient faults of the upper plate by the subduction. These preliminary results indicate that the ATACAMES data set has a strong potential to evaluate the spatial and temporal contribution of tectonic and climate changes on the structural development and stratigraphic evolution of the Ecuador continental

  4. Preliminary Diagnosis About the Appeal's Suppression in the Brazilian New Code of Civil Procedure

    Directory of Open Access Journals (Sweden)

    Diego Souza Merigueti

    2016-10-01

    Full Text Available The phenomenon of sluggishness in the judicial system reveals an attack to justice. In this purpose, this article aims to analyze the appeal's suppression in the brazilian new Code of Civil Procedure, as a way able to reach the scope of giving celerity to the jurisdictional protection in Brazil. At the diagnosis proposed, it will be presented possible legal consequences arising from the limitation of the "Agravo de Instrumento" and from the abolition of both "Agravo Retido" and "Embargos Infringentes" in the procedural diploma newly sanctioned. Unfolding this analysis, it is worth highlighting the contemporary movement to perform constitutional values and guarantees in procedural legislation, including the reasonable duration of the proceeding. This paper was produced by analyzing concepts and in consultation to national and foreing books, from authors of recognized contribution to the field, as well as through the study of the new procedural law, why it is therefore a literature review and a qualitative analysis.

  5. An Integrated, Acceptance-Based Behavioral Approach for Depression With Social Anxiety: Preliminary Results

    Science.gov (United States)

    Dalrymple, Kristy L.; Morgan, Theresa A.; Lipschitz, Jessica M.; Martinez, Jennifer H.; Tepe, Elizabeth; Zimmerman, Mark

    2016-01-01

    Depression and social anxiety disorder (SAD) are highly comorbid, resulting in greater severity and functional impairment compared with each disorder alone. Although recently transdiagnostic treatments have been developed, no known treatments have addressed this comorbidity pattern specifically. Preliminary support exists for acceptance-based approaches for depression and SAD separately, and they may be more efficacious for comorbid depression and anxiety compared with traditional cognitive-behavioral approaches. The aim of the current study was to develop and pilot test an integrated acceptance-based behavioral treatment for depression and comorbid SAD. Participants included 38 patients seeking pharmacotherapy at an outpatient psychiatry practice, who received 16 individual sessions of the therapy. Results showed significant improvement in symptoms, functioning, and processes from pre- to post-treatment, as well as high satisfaction with the treatment. These results support the preliminary acceptability, feasibility, and effectiveness of this treatment in a typical outpatient psychiatry practice, and suggest that further research on this treatment in larger randomized trials is warranted. PMID:24402463

  6. Aerosol composition in a stagnant air mass impacted by dense fogs: preliminary results

    Energy Technology Data Exchange (ETDEWEB)

    Jacob, D.J.; Munger, J.W.; Waldman, J.M.; Hoffman, M.R.

    1984-01-01

    Over the last two winters, our research group has been investigating the chemical composition of fogwater and haze aerosol during wintertime stagnation episodes in the San Joaquin Valley of California. The valley is encompassed by mountain ranges. During the winter a strong subsidence inversion based below the natural boundaries of the valley restricts the ventilation of the air masses below the inversion. The residence time of an air parcel in the valley under these stagnation conditions is on the order of 8 days. Because the trapped air is very humid, stagnation episodes are associated with a persistent thick haze and frequent widespread nighttime fogs. During the winter 1982-1983 the authors sampled fog and haze at one site (Bakersfield); results from this preliminary study have been discussed in detail in a previous report. In the winter 1983-1984 the scale of the program was expanded in order to test hypotheses formulated as a result of first year data. The present paper first reports briefly on the 1982-1983 results and outlines the essential conclusions. They then describe the large-scale experiment conducted during the winter of 1983-1984, and discuss some preliminary fogwater data.

  7. Development of an Image Processing System for Automatic Melanoma Diagnosis from Dermoscopic Images: Preliminary Sudy - Original Article

    Directory of Open Access Journals (Sweden)

    M. Emin Yüksel

    2008-12-01

    Full Text Available Objective: Design and implementation of a medical image processing system that will provide decision support to the clinician in the diagnosis of melanoma type skin cancers by performing the analysis of dermoscopic images.Methods: Visual features of pigmented lesions are converted into measurable numerical quantities by employing digital image processing methods and a classification regarding melanoma diagnosis is performed based on these quantitative data.Results: We achieved numerical results showing asymmetry, border and color features of the pigmentary lesions by using segmentation, image histogram, thresholding, convex hull, color clustering, color quantization and distribution methods. Conclusion: The system under development speeds up the decision process of the clinician. In addition, it allows the diagnosis to be based on more objective data.

  8. Multispectral Photoacoustic Imaging of Prostate Cancer: Preliminary Ex-vivo Results.

    Science.gov (United States)

    Dogra, Vikram S; Chinni, Bhargava K; Valluru, Keerthi S; Joseph, Jean V; Ghazi, Ahmed; Yao, Jorge L; Evans, Katie; Messing, Edward M; Rao, Navalgund A

    2013-01-01

    The objective of this study is to validate if ex-vivo multispectral photoacoustic (PA) imaging can differentiate between malignant prostate tissue, benign prostatic hyperplasia (BPH), and normal human prostate tissue. Institutional Review Board's approval was obtained for this study. A total of 30 patients undergoing prostatectomy for biopsy-confirmed prostate cancer were included in this study with informed consent. Multispectral PA imaging was performed on surgically excised prostate tissue and chromophore images that represent optical absorption of deoxyhemoglobin (dHb), oxyhemoglobin (HbO2), lipid, and water were reconstructed. After the imaging procedure is completed, malignant prostate, BPH and normal prostate regions were marked by the genitourinary pathologist on histopathology slides and digital images of marked histopathology slides were obtained. The histopathology images were co-registered with chromophore images. Region of interest (ROI) corresponding to malignant prostate, BPH and normal prostate were defined on the chromophore images. Pixel values within each ROI were then averaged to determine mean intensities of dHb, HbO2, lipid, and water. Our preliminary results show that there is statistically significant difference in mean intensity of dHb (P imaging system were found to be 81.3%, 96.2%, 92.9% and 89.3% respectively. Our preliminary results of ex-vivo human prostate study suggest that multispectral PA imaging can differentiate between malignant prostate, BPH and normal prostate tissue.

  9. Nuclear Reactor Component Code CUPID-I: Numerical Scheme and Preliminary Assessment Results

    Energy Technology Data Exchange (ETDEWEB)

    Cho, Hyoung Kyu; Jeong, Jae Jun; Park, Ik Kyu; Kim, Jong Tae; Yoon, Han Young

    2007-12-15

    A component scale thermal hydraulic analysis code, CUPID (Component Unstructured Program for Interfacial Dynamics), is being developed for the analysis of components of a nuclear reactor, such as reactor vessel, steam generator, containment, etc. It adopted three-dimensional, transient, two phase and three-field model. In order to develop the numerical schemes for the three-field model, various numerical schemes have been examined including the SMAC, semi-implicit ICE, SIMPLE, Row Scheme and so on. Among them, the ICE scheme for the three-field model was presented in the present report. The CUPID code is utilizing unstructured mesh for the simulation of complicated geometries of the nuclear reactor components. The conventional ICE scheme that was applied to RELAP5 and COBRA-TF, therefore, were modified for the application to the unstructured mesh. Preliminary calculations for the unstructured semi-implicit ICE scheme have been conducted for a verification of the numerical method from a qualitative point of view. The preliminary calculation results showed that the present numerical scheme is robust and efficient for the prediction of phase changes and flow transitions due to a boiling and a flashing. These calculation results also showed the strong coupling between the pressure and void fraction changes. Thus, it is believed that the semi-implicit ICE scheme can be utilized for transient two-phase flows in a component of a nuclear reactor.

  10. Use of the KineSpring system in the treatment of medial knee osteoarthritis: preliminary results.

    Science.gov (United States)

    Madonna, Vincenzo; Condello, Vincenzo; Piovan, Gianluca; Screpis, Daniele; Zorzi, Claudio

    2015-01-01

    the purpose of this study was to analyze our preliminary results obtained with the KineSpring system in patients suffering from medial compartment knee osteoarthritis (OA). between September 2012 and May 2014, 53 patients underwent treatment with the KineSpring system. Patient self-assessment was performed pre-operatively and at 3, 6 and 12 months postoperatively, and included the KOOS, Tegner activity score, Lysholm functional knee score, VAS knee pain score, and IKDC score. Device- and procedure-related adverse events were recorded. mean KOOS subscales, except for the Sport/Recreation subscale at six months, improved over time. Mean WOMAC Pain and Function domains, Lysholm score, IKDC score and VAS knee pain score improved over the follow-up period and were significantly improved at 3, 6 and 12 months postoperatively compared to baseline. Mean Tegner score improved slightly over time. In 5 of the 53 (9.4%) patients re-operation was necessary. In 3 patients the device was removed due to infection (one case) or persistent knee pain (two cases). Surgical arthrolysis was performed in two patients. in our preliminary experience, the KineSpring system gave good short-term clinical results. Level IV, therapeutic case series.

  11. Preliminary results of combined ESR/U-series dating of fossil teeth from Longgupo cave, China

    International Nuclear Information System (INIS)

    Han, Fei; Bahain, Jean-Jacques; Falgueres, Christophe; Shao, Qingfeng; Boeda, Eric; Hou, Yamei; Huang, Wanbo; Rasse, Michel; Wei, Guangbiao; Garcia, Tristan; Yin, Gongming

    2012-01-01

    Longgupo Cave site, located in Wushan County, Chongqing, China has attracted continuous attention since its discovery of hominid remains in association with late Pliocene-early Pleistocene fauna and numerous lithic artefacts. In 2003-2006, new excavation was carried out on this site, allowing the description of a detailed stratigraphy of the highly complex cave in-fillings and the sampling of teeth for combined ESR/U-series analyses. Here we report preliminary dating results of seven herbivorous fossil teeth from different archaeological layers of the lowest geological unit (C III). Uranium-series analyses indicate that no obvious uranium leaching has occurred and all the teeth (except one) underwent a very recent uranium uptake history. The obtained US-ESR results show that the age of six teeth are basically consistent, between similar to 1.4 and 1.8 Ma. At the same time, we observed an inverse correlation of two samples with the stratigraphic sequence. This could be caused by the distinct uranium uptake history of one sample, high uranium content in the enamel for another or bad estimation of external dose rate. Due to the complexity of the stratigraphic sequence, supplementary in situ gamma dose rate measurement should be performed for all the samples during the following excavations in order to confirm this preliminary ESR/U-series chronology. (authors)

  12. Nuclear Reactor Component Code CUPID-I: Numerical Scheme and Preliminary Assessment Results

    International Nuclear Information System (INIS)

    Cho, Hyoung Kyu; Jeong, Jae Jun; Park, Ik Kyu; Kim, Jong Tae; Yoon, Han Young

    2007-12-01

    A component scale thermal hydraulic analysis code, CUPID (Component Unstructured Program for Interfacial Dynamics), is being developed for the analysis of components of a nuclear reactor, such as reactor vessel, steam generator, containment, etc. It adopted three-dimensional, transient, two phase and three-field model. In order to develop the numerical schemes for the three-field model, various numerical schemes have been examined including the SMAC, semi-implicit ICE, SIMPLE, Row Scheme and so on. Among them, the ICE scheme for the three-field model was presented in the present report. The CUPID code is utilizing unstructured mesh for the simulation of complicated geometries of the nuclear reactor components. The conventional ICE scheme that was applied to RELAP5 and COBRA-TF, therefore, were modified for the application to the unstructured mesh. Preliminary calculations for the unstructured semi-implicit ICE scheme have been conducted for a verification of the numerical method from a qualitative point of view. The preliminary calculation results showed that the present numerical scheme is robust and efficient for the prediction of phase changes and flow transitions due to a boiling and a flashing. These calculation results also showed the strong coupling between the pressure and void fraction changes. Thus, it is believed that the semi-implicit ICE scheme can be utilized for transient two-phase flows in a component of a nuclear reactor

  13. Preliminary results of MR imaging of lymphoma: Distinguishing active tumor from benign residue

    International Nuclear Information System (INIS)

    Drace, J.; Baker, L.L.; Chang, P.; Castellino, R.A.

    1987-01-01

    Distinguishing tumor from benign posttreatment tissue based on both morphologic and tissue characteristics is critically important. Patients are studied before, during, and after treatment; at the time of recurrence; and on long-term follow-up. Multisection spin-echo sequences in orthogonal planes and a special single-section tissue characterization matrix of 16 different repetition time/echo time combinations are used. These basic images are used for cluster analysis (approximate fuzzy C means), T1-T2 synthetic images, linear combinations, and comparison with internal standards. Preliminary results in 35 patients imaged before treatment and 12 patients with follow-up examinations consistently show lymphoma masses to have complex architecture with high T2-weighted signal and moderate T1-weighted signal, distinct from posttreatment fibrosis. Uncommon components of active tumor with low T2-weighted signal appear distinct from fibrosis on T1-weighted images. Preliminary cluster analysis results show distinct clustering of active lymphoma versus fibrosis and biopsy-proved cystic degeneration

  14. High risk cohort study for psychiatric disorders in childhood: rationale, design, methods and preliminary results.

    Science.gov (United States)

    Salum, Giovanni Abrahão; Gadelha, Ary; Pan, Pedro Mario; Moriyama, Tais Silveira; Graeff-Martins, Ana Soledade; Tamanaha, Ana Carina; Alvarenga, Pedro; Valle Krieger, Fernanda; Fleitlich-Bilyk, Bacy; Jackowski, Andrea; Sato, João Ricardo; Brietzke, Elisa; Polanczyk, Guilherme Vanoni; Brentani, Helena; de Jesus Mari, Jair; Do Rosário, Maria Conceição; Manfro, Gisele Gus; Bressan, Rodrigo Affonseca; Mercadante, Marcos Tomanik; Miguel, Eurípedes Constantino; Rohde, Luis Augusto

    2015-03-01

    The objective of this study is to present the rationale, methods, design and preliminary results from the High Risk Cohort Study for the Development of Childhood Psychiatric Disorders. We describe the sample selection and the components of each phases of the study, its instruments, tasks and procedures. Preliminary results are limited to the baseline phase and encompass: (i) the efficacy of the oversampling procedure used to increase the frequency of both child and family psychopathology; (ii) interrater reliability and (iii) the role of differential participation rate. A total of 9937 children from 57 schools participated in the screening procedures. From those 2512 (random = 958; high risk = 1554) were further evaluated with diagnostic instruments. The prevalence of any child mental disorder in the random strata and high-risk strata was 19.9% and 29.7%. The oversampling procedure was successful in selecting a sample with higher family rates of any mental disorders according to diagnostic instruments. Interrater reliability (kappa) for the main diagnostic instrument range from 0.72 (hyperkinetic disorders) to 0.84 (emotional disorders). The screening instrument was successful in selecting a sub-sample with "high risk" for developing mental disorders. This study may help advance the field of child psychiatry and ultimately provide useful clinical information. Copyright © 2014 John Wiley & Sons, Ltd.

  15. Using VIIRS Day/Night Band to Measure Electricity Supply Reliability: Preliminary Results from Maharashtra, India

    Directory of Open Access Journals (Sweden)

    Michael L. Mann

    2016-08-01

    Full Text Available Unreliable electricity supplies are common in developing countries and impose large socio-economic costs, yet precise information on electricity reliability is typically unavailable. This paper presents preliminary results from a machine-learning approach for using satellite imagery of nighttime lights to develop estimates of electricity reliability for western India at a finer spatial scale. We use data from the Visible Infrared Imaging Radiometer Suite (VIIRS onboard the Suomi National Polar Partnership (SNPP satellite together with newly-available data from networked household voltage meters. Our results point to the possibilities of this approach as well as areas for refinement. With currently available training data, we find a limited ability to detect individual outages identified by household-level measurements of electricity voltage. This is likely due to the relatively small number of individual outages observed in our preliminary data. However, we find that the approach can estimate electricity reliability rates for individual locations fairly well, with the predicted versus actual regression yielding an R2 > 0.5. We also find that, despite the after midnight overpass time of the SNPP satellite, the reliability estimates derived are representative of daytime reliability.

  16. Preliminary results on a 4 kJ, 140 k A plasma focus

    International Nuclear Information System (INIS)

    Silva, Patricio; Favre, Mario; Chuaqui, Hernan; Wyndham, Edmund

    1996-01-01

    Preliminary results on the operation of a 4 kJ, 140 kA Plasma Focus device are presented. The machine operates Hydrogen and Hydrogen-Argon mixtures at pressures between 400 m Torr to 10 Torr. Main diagnostics include electric and current measurements, time and space resolved X-ray observations, with limited spectral resolution, and B-dot sensors to monitor the evolution of de current sheet during the run up phase of the discharge. The results indicate that good focus is obtained in the above pressure range. This is inferred from I-dot traces and Pin diode and pin-hole camera X-ray observations. The B-dot loops suggest that a symmetric current sheet is produced. These results show that the machine exhibits a reliable performance, which allows further studies on dense transient plasmas to be developed. (author)

  17. Modeling of Particle Acceleration at Multiple Shocks via Diffusive Shock Acceleration: Preliminary Results

    Science.gov (United States)

    Parker, L. Neergaard; Zank, G. P.

    2013-01-01

    Successful forecasting of energetic particle events in space weather models require algorithms for correctly predicting the spectrum of ions accelerated from a background population of charged particles. We present preliminary results from a model that diffusively accelerates particles at multiple shocks. Our basic approach is related to box models in which a distribution of particles is diffusively accelerated inside the box while simultaneously experiencing decompression through adiabatic expansion and losses from the convection and diffusion of particles outside the box. We adiabatically decompress the accelerated particle distribution between each shock by either the method explored in Melrose and Pope (1993) and Pope and Melrose (1994) or by the approach set forth in Zank et al. (2000) where we solve the transport equation by a method analogous to operator splitting. The second method incorporates the additional loss terms of convection and diffusion and allows for the use of a variable time between shocks. We use a maximum injection energy (E(sub max)) appropriate for quasi-parallel and quasi-perpendicular shocks and provide a preliminary application of the diffusive acceleration of particles by multiple shocks with frequencies appropriate for solar maximum (i.e., a non-Markovian process).

  18. Physical activity in solid organ transplant recipients: organizational aspects and preliminary results of the Italian project.

    Science.gov (United States)

    Roi, G S; Stefoni, S; Mosconi, G; Brugin, E; Burra, P; Ermolao, A; Granito, M; Macini, P; Mastrosimone, S; Nacchia, F; Pegoraro, C; Rigotti, P; Sella, G; Sgarzi, S; Tamè, M R; Totti, V; Trerotola, M; Tripi, F; Nanni Costa, A

    2014-09-01

    Most of the difficulties when trying to realize the proposal to prescribe physical activity for transplantation patients come from patient attitudes and cultural beliefs that ignore the benefits of exercise, but there also are organizational aspects arising from the difficulties that these patients face in accessing supervised exercise facilities. To address these difficulties, the Italian study project "Transplant … and Now Sport" was developed based on a model of cooperation among transplantation specialists, sports physicians, and exercise specialists organized as a team combining their specific skills to effectively actuate the physical exercise programs. This preliminary report is based on 26 patients (16 male, 10 female; 47.8±10.0 years old; 21 kidney and 5 liver transplantations; time from transplantation 2.3±1.4 years) who performed prescribed and supervised exercises consisting of 3 sessions per week of aerobic and strengthening exercises for 1 year. Preliminary results show a significant decrease in body mass index (t=1.966; PSocial Functioning, and Role Emotional scale scores showed a significant improvement (PSport" show the positive effects of the model based on cooperation among transplantation centers, sports medicine centers, and gyms in the administration of a supervised exercise prescription. These data should be considered a contribution to developing and promoting further detailed exercise protocols and to fostering improved posttransplantation health and survival, helping to ensure that physical activity becomes a safe routine medical treatment plan of patient management. Copyright © 2014. Published by Elsevier Inc.

  19. A color spectrographic phonocardiography (CSP applied to the detection and characterization of heart murmurs: preliminary results

    Directory of Open Access Journals (Sweden)

    Hassani Kamran

    2011-05-01

    Full Text Available Abstract Background Although cardiac auscultation remains important to detect abnormal sounds and murmurs indicative of cardiac pathology, the application of electronic methods remains seldom used in everyday clinical practice. In this report we provide preliminary data showing how the phonocardiogram can be analyzed using color spectrographic techniques and discuss how such information may be of future value for noninvasive cardiac monitoring. Methods We digitally recorded the phonocardiogram using a high-speed USB interface and the program Gold Wave http://www.goldwave.com in 55 infants and adults with cardiac structural disease as well as from normal individuals and individuals with innocent murmurs. Color spectrographic analysis of the signal was performed using Spectrogram (Version 16 as a well as custom MATLAB code. Results Our preliminary data is presented as a series of seven cases. Conclusions We expect the application of spectrographic techniques to phonocardiography to grow substantially as ongoing research demonstrates its utility in various clinical settings. Our evaluation of a simple, low-cost phonocardiographic recording and analysis system to assist in determining the characteristic features of heart murmurs shows promise in helping distinguish innocent systolic murmurs from pathological murmurs in children and is expected to useful in other clinical settings as well.

  20. Usefulness of an occlusal device in the treatment of medication overuse headache and persistent idiopathic facial pain: preliminary results.

    Science.gov (United States)

    Didier, H A; Curone, M; Tullo, V; Didier, A H; Cornalba, R; Giannì, A B; Bussone, G

    2017-05-01

    There is a debate in literature about the therapeutic usefulness of oral devices in patients suffering from Medication Overuse Headache (MOH) or in patients suffering from Persistent Idiopathic Facial Pain (PIFP). From the case histories of 3356 patients, referred to us with a diagnosis of chronic craniofacial pain for assessment of the eventual application of an occlusal device to correct an impaired neuromuscular relationship between the mandible and the maxilla, we selected, following the criteria of the International Classification of Headache Disorders (ICHD-3beta), two groups of patients suffering from MOH and PIFP. All patients of the two groups underwent a Kinesiographic exam and an EMG to evaluate the freeway space (FWS). Patients presenting an impaired FWS were placed in treatment with the application of an occlusal device. At the follow-up after 6 months and after 1 year, we found a significant decrease in pain with regard to the intensity resulting in the reduction of clinical disability. The preliminary data collected using the VAS scale and the MIDAS questionnaire confirm that the neuromuscular cranio-mandibular system can have an important role in the diagnostic process of the MOH and the PIFP, suggesting the usefulness of treatment with an occlusal device, where there is adequate FWS.

  1. Sleep-Related Disorders in Children with Attention-Deficit Hyperactivity Disorder: Preliminary Results of a Full Sleep Assessment Study.

    Science.gov (United States)

    Miano, Silvia; Esposito, Maria; Foderaro, Giuseppe; Ramelli, Gian Paolo; Pezzoli, Valdo; Manconi, Mauro

    2016-11-01

    We present the preliminary results of a prospective case-control sleep study in children with a diagnosis of attention-deficit hyperactivity disorder (ADHD). A deep sleep assessment including sleep questionnaires, sleep habits, a video-polysomnographic recording with full high-density electroencephalography (EEG) and cardiorespiratory polygraphy, multiple sleep latency test, and 1-week actigraphic recording were performed to verify whether children with ADHD may be classified into one of the following five phenotypes: (1) hypoarousal state, resembling narcolepsy, which may be considered a "primary" form of ADHD; (2) delayed sleep onset insomnia; (3) sleep-disordered breathing; (4) restless legs syndrome and/or periodic limb movements; and (5) sleep epilepsy and/or EEG interictal epileptiform discharges. Fifteen consecutive outpatients with ADHD were recruited (two female, mean age 10.6 ± 2.2, age range 8-13.7 years) over 6 months. The narcolepsy-like sleep phenotype was observed in three children, the sleep onset insomnia phenotype was observed in one child, mild obstructive sleep apnea was observed in three children, sleep hyperkinesia and/or PLMs were observed in five children, while IEDs and or nocturnal epilepsy were observed in three children. Depending on the sleep phenotype, children received melatonin, iron supplementation, antiepileptic drugs, or stimulants. Our study further highlights the need to design an efficient sleep diagnostic algorithm for children with ADHD, thereby more accurately identifying cases in which a full sleep assessment is indicated. © 2016 John Wiley & Sons Ltd.

  2. Oral use of Streptococcus salivarius K12 in children with secretory otitis media: preliminary results of a pilot, uncontrolled study

    Directory of Open Access Journals (Sweden)

    Di Pierro F

    2015-09-01

    Full Text Available Francesco Di Pierro,1 Daniele Di Pasquale,2 Maurizio Di Cicco2 1Velleja Research, Milan, Italy; 2ORL Department, Ospedale Maggiore Policlinico Ca’ Grande IRCCS, Milan, Italy Abstract: Secretory otitis media (SOM remains a common disease among children. Although its cause is not yet perfectly established, the pathology, often a sequel of acute otitis media (AOM, is mainly characterized by persistent fluid in the middle ear cavity. Twenty-two children with a diagnosis of SOM were treated daily for 90 days with an oral formulation containing the oral probiotic Streptococcus salivarius K12 (Bactoblis®. After treatment, the children were evaluated for AOM episodes and subjected to tone audiometry, tympanometry, endonasal endoscopy, otoscopy, and tonsillar examination. Subject compliance and probiotic tolerability and side effects have also been evaluated. Our results indicate a good safety profile, a substantial reduction of AOM episodes, and a positive outcome from the treatment for all of the clinical outcomes tested. We conclude that strain K12 may have a role in reducing the occurrence and/or severity of SOM in children. From our perspective, this study constitutes a starting point toward the organization of a more extensive placebo-controlled study aimed at critically appraising our preliminary observations. Keywords: BLIS K12, Bactoblis®, acute otitis media, exudative otitis media

  3. Experimental Investigation of the Vehicle–Ground Interaction – Experiment Preparation and Preliminary Results

    Directory of Open Access Journals (Sweden)

    Valašková Veronika

    2017-12-01

    Full Text Available Interaction of the moving vehicle and the ground represents the actual engineering, environmental and economic problem. Due to the complexity of the problem, a combination of the experimental measurement and the computational simulation to understand the interaction mechanism is the most beneficial approach. Results of the in-situ observation serve as an input for the numerical analysis and also as a background for the calibration of the model. Presented paper brings the summary of the experiment preparation and preliminary results which are necessary for further analyses and numerical models. Computational simulations will be helpful for understanding the vehicle-ground interaction when inputs will be verified by the experimental way at known boundary conditions.

  4. Surface faulting during the August 24, 2016, central Italy earthquake (Mw 6.0: preliminary results

    Directory of Open Access Journals (Sweden)

    Franz A. Livio

    2016-11-01

    Full Text Available We present some preliminary results on the mapping of coseismically-induced ground ruptures following the Aug. 24, 2016, Central Italy earthquake (Mw 6.0. The seismogenic source, as highlighted by InSAR and seismological data, ruptured across two adjacent structures: the Vettore and Laga faults. We collected field data on ground breaks along the whole deformed area and two different scenarios of on-fault coseismic displacement arise from these observations. To the north, along the Vettore fault, surface faulting can be mapped quite continuously along a well-defined fault strand while such features are almost absent to the south, along the Laga fault, where flysch-like marly units are present. A major lithological control, affects the surface expression of faulting, resulting in a complex deformation pattern.

  5. Preliminary results of measurement of natural environmental radiation levels and doses to population in China

    International Nuclear Information System (INIS)

    Wang Qiliang; He Miaoting; Shu Qi

    1985-01-01

    In this paper the preliminary results of measurement of natural environmental radiation levels in China with RSS-111 high pressure ionization chamber and estimated doses to population are reported. A total of 2,723 indoor locales throughout China were measured. The results showed that the average absorbed dose rates in air due to gamma radiation for indoors and outdoors were 11.0 x 10 -8 Gy.h -1 and 7.4 x 10 -8 Gy.h -1 , respectively, and those due to cosmic rays were 3.2 x 10 -8 Gy.h -1 and 3.7 x 10 -8 Gy.h -1 , respectively. The annual average effective dose equivalent to population was 919 μSv, including 630 μSv from natural gamma radiation and 289 μSv from cosmic rays

  6. Preliminary results of 3D-DDTC pixel detectors for the ATLAS upgrade

    CERN Document Server

    La Rosa, Alessandro; Dalla Betta, G F; Darbo, G; Gemme, C; Pernegger, H; Piemonte, C; Povoli, M; Ronchin, S; Zoboli, A; Zorzi, N; Bolle, E; Borri, M; Da Via, C; Dong, S; Fazio, S; Grenier, P; Grinstein, S; Gjersdal, H; Hansson, P; Huegging, F; Jackson, P; Kocian, M; Rivero, F; Rohne, O; Sandaker, H; Sjobak, K; Slavicek, T; Tsung, W; Tsybychev, D; Wermes, N; Young, C

    2009-01-01

    3D Silicon sensors fabricated at FBK-irst with the Double-side Double Type Column (DDTC) approach and columnar electrodes only partially etched through p-type substrates were tested in laboratory and in a 1.35 Tesla magnetic field with a 180GeV pion beam at CERN SPS. The substrate thickness of the sensors is about 200um, and different column depths are available, with overlaps between junction columns (etched from the front side) and ohmic columns (etched from the back side) in the range from 110um to 150um. The devices under test were bump bonded to the ATLAS Pixel readout chip (FEI3) at SELEX SI (Rome, Italy). We report leakage current and noise measurements, results of functional tests with Am241 gamma-ray sources, charge collection tests with Sr90 beta-source and an overview of preliminary results from the CERN beam test.

  7. Preliminary Results of 3D-DDTC Pixel Detectors for the ATLAS Upgrade

    Energy Technology Data Exchange (ETDEWEB)

    La Rosa, Alessandro; /CERN; Boscardin, M.; /Fond. Bruno Kessler, Povo; Dalla Betta, G.-F.; /Trento U. /INFN, Trento; Darbo, G.; Gemme, C.; /INFN, Genoa; Pernegger, H.; /CERN; Piemonte, C.; /Fond. Bruno Kessler, Povo; Povoli, M.; /Trento U. /INFN, Trento; Ronchin, S.; /Fond. Bruno Kessler, Povo; Zoboli, A.; /Trento U. /INFN, Trento; Zorzi, N.; /Fond. Bruno Kessler, Povo; Bolle, E.; /Oslo U.; Borri, M.; /INFN, Turin /Turin U.; Da Via, C.; /Manchester U.; Dong, S.; /SLAC; Fazio, S.; /Calabria U.; Grenier, P.; /SLAC; Grinstein, S.; /Barcelona, IFAE; Gjersdal, H.; /Oslo U.; Hansson, P.; /SLAC; Huegging, F.; /Bonn U. /SLAC /INFN, Turin /Turin U. /Oslo U. /Bergen U. /Oslo U. /Prague, Tech. U. /Bonn U. /SUNY, Stony Brook /Bonn U. /SLAC

    2012-04-04

    3D Silicon sensors fabricated at FBK-irst with the Double-side Double Type Column (DDTC) approach and columnar electrodes only partially etched through p-type substrates were tested in laboratory and in a 1.35 Tesla magnetic field with a 180 GeV pion beam at CERN SPS. The substrate thickness of the sensors is about 200 {mu}m, and different column depths are available, with overlaps between junction columns (etched from the front side) and ohmic columns (etched from the back side) in the range from 110 {mu}m to 150 {mu}m. The devices under test were bump bonded to the ATLAS Pixel readout chip (FEI3) at SELEX SI (Rome, Italy). We report leakage current and noise measurements, results of functional tests with Am{sup 241} {gamma}-ray sources, charge collection tests with Sr90 {beta}-source and an overview of preliminary results from the CERN beam test.

  8. Hybrid Spectral Micro-CT: System Design, Implementation, and Preliminary Results

    CERN Document Server

    Bennett, James R; Xu, Qiong; Yu, Hengyong; Walsh, Michael; Butler, Anthony; Butler, Phillip; Cao, Guohua; Mohs, Aaron; Wang, Ge

    2014-01-01

    Spectral CT has proven an important development in biomedical imaging, and there have been several publications in the past years demonstrating its merits in pre-clinical and clinical applications. In 2012, Xu et al. reported that near-term implementation of spectral micro-CT could be enhanced by a hybrid architecture: a narrow-beam spectral "interior" imaging chain integrated with a traditional wide-beam "global" imaging chain. This hybrid integration coupled with compressive sensing (CS)-based interior tomography demonstrated promising results for improved contrast resolution, and decreased system cost and radiation dose. The motivation for the current study is implementation and evaluation of the hybrid architecture with a first-of-its-kind hybrid spectral micro-CT system. Preliminary results confirm improvements in both contrast and spatial resolution. This technology is shown to merit further investigation and potential application in future spectral CT scanner design.

  9. Comparison of stroke infarction between CT perfusion and diffusion weighted imaging: preliminary results

    Science.gov (United States)

    Abd. Rahni, Ashrani Aizzuddin; Arka, Israna Hossain; Chellappan, Kalaivani; Mukari, Shahizon Azura; Law, Zhe Kang; Sahathevan, Ramesh

    2016-03-01

    In this paper we present preliminary results of comparison of automatic segmentations of the infarct core, between that obtained from CT perfusion (based on time to peak parameter) and diffusion weighted imaging (DWI). For each patient, the two imaging volumes were automatically co-registered to a common frame of reference based on an acquired CT angiography image. The accuracy of image registration is measured by the overlap of the segmented brain from both images (CT perfusion and DWI), measured within their common field of view. Due to the limitations of the study, DWI was acquired as a follow up scan up to a week after initial CT based imaging. However, we found significant overlap of the segmented brain (Jaccard indices of approximately 0.8) and the percentage of infarcted brain tissue from the two modalities were still fairly highly correlated (correlation coefficient of approximately 0.9). The results are promising with more data needed in future for clinical inference.

  10. Modelling lung cancer due to radon and smoking in WISMUT miners: Preliminary results

    International Nuclear Information System (INIS)

    Bijwaard, H.; Dekkers, F.; Van Dillen, T.

    2011-01-01

    A mechanistic two-stage carcinogenesis model has been applied to model lung-cancer mortality in the largest uranium-miner cohort available. Models with and without smoking action both fit the data well. As smoking information is largely missing from the cohort data, a method has been devised to project this information from a case-control study onto the cohort. Model calculations using 256 projections show that the method works well. Preliminary results show that if an explicit smoking action is absent in the model, this is compensated by the values of the baseline parameters. This indicates that in earlier studies performed without smoking information, the results obtained for the radiation parameters are still valid. More importantly, the inclusion of smoking-related parameters shows that these mainly influence the later stages of lung-cancer development. (authors)

  11. Measurement of pressure ridges in SAR images of sea ice - Preliminary results on scattering theory

    Science.gov (United States)

    Vesecky, J. F.; Smith, M. P.; Daida, J. M.; Samadani, R.; Camiso, J. C.

    1992-01-01

    Sea ice ridges and keels (hummocks and bummocks) are important in sea ice research for both scientific and practical reasons. A long-term objective is to make quantitative measurements of sea ice ridges using synthetic aperture radar (SAR) images. The preliminary results of a scattering model for sea ice ridge are reported. The approach is through the ridge height variance spectrum Psi(K), where K is the spatial wavenumber, and the two-scale scattering model. The height spectrum model is constructed to mimic height statistics observed with an airborne optical laser. The spectrum model is used to drive a two-scale scattering model. Model results for ridges observed at C- and X-band yield normalized radar cross sections that are 10 to 15 dB larger than the observed cross sections of multiyear ice over the range of angles of incidence from 10 to 70 deg.

  12. Plant exploitation during the early Natufian in north-eastern Jordan: preliminary results from Shubayqa 1

    DEFF Research Database (Denmark)

    Otaegui, Amaia Arranz; Richter, Tobias

    on this time period is the low density of plant remains preserved in archaeological sites. This largely contrasts with the extraordinary well-preserved archaeobotanical assemblage found at the Early and Late Natufian Shubayqa 1. In this paper, we present the preliminary results of wood charcoal and non......In spite of southwest Asia being one of the areas in the world where archaeobotanists have worked longest, information regarding plant exploitation during the Natufian period is still patchy and more materials and well-sampled sites are needed. One of the problems faced by archaeobotanists working......-woody plant analyses from two in situ hearth structures, along with a summary of the available evidence at other contemporary early Natufian sites. In terms of past vegetation, the results show the presence of wetland species indicating a more forested and wet environment during the early Natufian, which...

  13. Fiber optic pH sensor for gastric measurements: preliminary results

    Science.gov (United States)

    Netto, Eden J.; Peterson, John I.; Wang, Binseng

    1993-05-01

    This paper describes preliminary results on the development of a fiber optic pH sensor for gastric measurements. As the pH values in the gastric system vary from approximately 1 to 7, a combination of appropriate dyes to cover this broad range should be used. pH colorimetric indicators bound in polyacrylamide microspheres and light scattering particles are packed in a cellulosic dialysis tubing at the end of a pair of plastic optical fibers. The experimental setup uses a CCD spectrometer as a detector and a 386 compatible personal computer. All parameters can be set by software. Results with both one-dye and two-dye pH sensors are presented.

  14. Development of methods to measure hemoglobin adducts by gel electrophoresis - Preliminary results

    International Nuclear Information System (INIS)

    Sun, J.D.; McBride, S.M.

    1988-01-01

    Chemical adducts formed on blood hemoglobin may be a useful biomarker for assessing human exposures to these compounds. This paper reports preliminary results in the development of methods to measure such adducts that may be generally applicable for a wide variety of chemicals. Male F344/N rats were intraperitoneally injected with 14 C-BaP dissolved in corn oil. Twenty-four hours later, the rats were sacrificed. Blood samples were collected and globin was isolated. Globin protein was then cleaved into peptide fragments using cyanogen bromide and the fragments separated using 2-dimensional gel electrophoresis. The results showed that the adducted 14 C-globin fragments migrated to different areas of the gel than did unadducted fragments. Further research is being conducted to develop methods that will allow quantitation of separated adducted globin fragments from human blood samples without the use of a radiolabel. (author)

  15. Acceptability of robotic technology in neuro-rehabilitation: preliminary results on chronic stroke patients.

    Science.gov (United States)

    Mazzoleni, Stefano; Turchetti, Giuseppe; Palla, Ilaria; Posteraro, Federico; Dario, Paolo

    2014-09-01

    During the last decade, different robotic devices have been developed for motor rehabilitation of stroke survivors. These devices have been shown to improve motor impairment and contribute to the understanding of mechanisms underlying motor recovery after a stroke. The assessment of the robotic technology for rehabilitation assumes great importance. The aim of this study is to present preliminary results on the assessment of the acceptability of the robotic technology for rehabilitation on a group of thirty-four chronic stroke patients. The results from questionnaires on the patients' acceptability of two different robot-assisted rehabilitation scenarios show that the robotic approach was well accepted and tolerated by the patients. Copyright © 2013 Elsevier Ireland Ltd. All rights reserved.

  16. Combined videofluoroscopy and manometry in the diagnosis of oropharyngeal dysphagia: examination technique and preliminary experience.

    Science.gov (United States)

    Cappabianca, S; Reginelli, A; Monaco, L; Del Vecchio, L; Di Martino, N; Grassi, R

    2008-09-01

    Dysphagia is a symptom of different pathological conditions characterised by alteration of the swallowing mechanism, which may manifest at different levels. We report our experience in the evaluation of the swallowing mechanism with combined videofluoroscopy and manometric recordings. For the combined study, we used a Dyno Compact computerised system (Menfis Biomedical s.r.l., Bologna, Italy) equipped with: (1) graphics card for the management of ultrasonographic or radiological images; (2) A.VI.U.S. dedicated software package, which enables digital-quality recording (PAL/NTSC, composite video or S-Video) of the videofluoroscopy study in AVI format with 320 x 240 resolution and 25 Hz acquisition frequency. The delay introduced by the process of image digitalisation is in the order of 200 ms, so for analysis purposes, the images can be considered synchronised with the manometric recordings. The videomanometry study was performed with the administration of contrast material either in bolus form or diluted. Data were collected on a specifically designed grid for the evaluation of 46 videofluoroscopic items, of which 34 are derived from the laterolateral view (seven in the oral preparatory phase, 15 in the oral transport phase and 12 in the pharyngeal phase) and 12 in the anteroposterior view (six in the oral preparatory phase and six in the oropharyngeal phase). A positive finding for the individual parameters is expressed in a binary fashion. Manometric evaluation was based on 11 items divided into four major and seven minor criteria. Dynamic videofluoroscopy swallow study combined with concurrent manometry enabled the simultaneous recording of anatomical alterations and the functional data of oropharyngeal pressure, thus providing a picture of the anatomical, biomechanical and physiological conditions of swallowing and the manner of bolus propulsion and transit. An early and effective diagnosis of oropharyngeal dysphagia means being able to effectively implement

  17. Preliminary results of absolute wavelength calibration of imaging X-ray crystal spectrometer on EAST

    Energy Technology Data Exchange (ETDEWEB)

    Pan, Xiayun [Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031 (China); University of Science and Technology of China, Hefei 230026 (China); Wang, Fudi [Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031 (China); Chen, Jun [Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031 (China); University of Science and Technology of China, Hefei 230026 (China); Lyu, Bo, E-mail: blu@ipp.ac.cn [Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031 (China); Li, Yingying; Fu, Jia; Xu, Liqing [Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031 (China); Shi, Yuejiang [University of Science and Technology of China, Hefei 230026 (China); Department of Nuclear Engineering, Seoul National University, Seoul 151-742 (Korea, Republic of); Ye, Minyou [University of Science and Technology of China, Hefei 230026 (China); Wan, Baonian [Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031 (China)

    2015-10-15

    Highlights: • The absolute wavelength calibration method for X-ray crystal spectrometer using X-ray fluorescence of the appropriate materials was first tested on EAST, and the preliminary experimental results were obtained. • The experimental results were thoroughly discussed and suggestion for further improvements of the experimental arrangement was proposed. • Rotation calibration of X-ray crystal spectrometer on EAST using MHD frequency was presented when the absolute wavelength calibration method is unavailable currently. - Abstract: Imaging X-ray crystal spectrometers (XCS) are currently operating on several major tokamaks to provide profiles of ion temperature and rotation velocity. In order to acquire absolute rotation velocity, several indirect methods were pursued previously, however the direct and effective method is to use known X-ray lines for wavelength calibration. One way to produce standard spectral lines is X-ray fluorescence, which could be excited by X-rays from tokamak plasmas. As part of the upgrade of XCS system on EAST, wavelength calibration was studied using cadmium's L-shell lines, namely Lα{sub 1} line (3.9564 Å) and Lα{sub 2} line (3.9650 Å) as the reference wavelength. The Geant 4 code was used to optimize foil thickness to achieve a reasonable X-ray fluorescence intensity. The Cd foil was placed between the beryllium window and crystal and could be retracted to provide in situ wavelength calibration. The detailed arrangement and preliminary wavelength calibration results of imaging X-ray crystal spectrometer on EAST are presented, plus the calibration using MHD frequency.

  18. Description and preliminary results of a 100 square meter rain gauge

    Science.gov (United States)

    Grimaldi, Salvatore; Petroselli, Andrea; Baldini, Luca; Gorgucci, Eugenio

    2018-01-01

    Rainfall is one of the most crucial processes in hydrology, and the direct and indirect rainfall measurement methods are constantly being updated and improved. The standard instrument used to measure rainfall rate and accumulation is the rain gauge, which provides direct observations. Though the small dimension of the orifice allows rain gauges to be installed anywhere, it also causes errors due to the splash and wind effects. To investigate the role of the orifice dimension, this study, for the first time, introduces and demonstrates an apparatus for observing rainfall called a giant-rain gauge that is characterised by a collecting surface of 100 m2. To discuss the new instrument and its technical details, a preliminary analysis of 26 rainfall events is provided. The results suggest that there are significant differences between the standard and proposed rain gauges. Specifically, major discrepancies are evident for low time aggregation scale (5, 10, and 15 min) and for high rainfall intensity values.

  19. Cognitive impairment and computer tomography image in patients with arterial hypertension -preliminary results

    International Nuclear Information System (INIS)

    Yaneva-Sirakova, T.; Tarnovska-Kadreva, R.; Traykov, L.; Zlatareva, D.

    2012-01-01

    Arterial hypertension is the leading risk factor for cognitive impairment, but it is developed only in some of the patients with pour control. On the other hand, not all of the patents with white matter changes have cognitive deficit. There may be a variety of reasons for this: the accuracy of methods for blood pressure measurement, the specific brain localization or some other reason. Here are the preliminary results of a study (or the potential correlation between self-measured, office-, ambulatory monitored blood pressure, central aortic blood pressure, minimal cognitive impairment and the specific brain image on contrast computer tomography. We expect to answer, the question whether central aortic or self-measured blood pressure have the leading role for the development of cognitive impairment in the presence of a specific neuroimaging finding, as well as what is the prerequisite for the clinical manifestation of cognitive dysfunction in patients with computer tomographic pathology. (authors)

  20. Polarimetry at 1.3 mm using MILLIPOL - methods and preliminary results for Orion

    International Nuclear Information System (INIS)

    Barvainis, R.; Clemens, D.P.; Leach, R.

    1988-01-01

    This paper describes a polarimeter for use at wavelengths near 1 mm, designed to be self-contained and portable. Only minor modifications should be required to adapt this instrument for use on any of several millimeter and submillimeter telescopes. The polarimeter system and data-taking techniques are described, and a preliminary measurement is reported of the polarized dust emission from the Orion KL region at 1.3 mm using the NRAO 12 m telescope. The results are similar to previous polarization measurements of Orion at far-infrared and submillimeter wavelengths. The magnetic field direction implied by the polarization position angle is parallel to that found in the surrounding Orion region using optical and near- to midinfrared polarimetric techniques. 17 references

  1. Preliminary results of laser ablation of the prostate versus TURP: a randomized study

    Science.gov (United States)

    Shaffer, Brian S.; Costello, Anthony J.

    1993-05-01

    Preliminary results of a randomized study comparing laser ablation of the prostate (LAP) to transurethral resection of the prostate (TURP) for the treatment of symptomatic benign prostatic hyperplasia are reviewed. Forty-five men enrolled in the study had a minimum 6 week followup. Preoperative AUA symptom scores, peak urinary flow rates, and post-void residual urines (PVR) were compared to postoperative values. The TURP group (22 men) did better than its LAP cohort (23 men) with a mean decrease in symptom score of 70% versus 47%, a mean increase in flow rate of 83% versus 53%, and a mean decrease in PVR of 51% versus 28%, respectively, at 12 weeks. LAP patients had less complications associated with impotence and retrograde ejaculation, required urethral catheters for less time, and had shorter hospital stays. With the development of more durable and reflective fibers the difference in efficacy between TURP and LAP should diminish while the benefits of LAP are preserved.

  2. PRELIMINARY RESULTS OF ESTIMATING SOIL MOISTURE OVER BARE SOIL USING FULL-POLARIMETRIC ALOS-2 DATA

    Directory of Open Access Journals (Sweden)

    A. Sekertekin

    2016-10-01

    Full Text Available Synthetic Aperture Radar (SAR imaging system is one of the most effective way for Earth observation. The aim of this study is to present the preliminary results about estimating soil moisture using L-band Synthetic Aperture Radar (SAR data. Full-polarimetric (HH, HV, VV, VH ALOS-2 data, acquired on 22.04.2016 with the incidence angle of 30.4o, were used in the study. Simultaneously with the SAR acquisition, in-situ soil moisture samples over bare agricultural lands were collected and evaluated using gravimetric method. Backscattering coefficients for all polarizations were obtained and linear regression analysis was carried out with in situ moisture measurements. The best correlation coefficient was observed with VV polarization. Cross-polarized backscattering coefficients were not so sensitive to soil moisture content. In the study, it was observed that soil moisture maps can be retrieved with the accuracy about 14% (RMSE.

  3. Digital subtraction angiography of lower limb arteries using and automatic table translation. Feasibility. Preliminary results

    International Nuclear Information System (INIS)

    Seka, R.; Amiel, M.; Boller, A.; Chapelon, C.; Clermont, A.; Revel, D.; Pinet, F.

    1988-01-01

    Digital subtraction angiography (DSA) as a method of evaluating lower limb arteries required examination of one limb at a time up to now. Moreover repeated injections of contrast material were necessary. This problem was mainly due to the relative small image intensifier field available and to the difficulty of repositionning the patient between mask and image acquisition. The preliminary results obtained with 24 patients studied on angiographic unit equipped with: a DSA system (DG 300-CGR) using 512x512 matrix size, an angiographic table (Angix M 200) allowing an automatic sequantial translation, a removable image intensifier using a 16 inch field below the table, are reported. Thus, all those characteristics allow DSA of lower limb arteries. Only one injection of contrast material (Ioxaglate: 80 ml at 8-10 ml/second) was used per procedure. This, usually, allows good quality examination of lower limb arteries [fr

  4. Equity in transportation: new approach in transport planning – preliminary results of case study in Cracow

    Directory of Open Access Journals (Sweden)

    Lidia ZAKOWSKA

    2014-09-01

    Full Text Available The goal of the paper is to present the concept of equity as a new approach in transport and land-use planning. This concept is consistent with the objectives of sustainable development and it is becoming more common in European and world literature. Understanding the idea of equity in the context of the transport system development is very important in creating sustainable cities and regions without discriminating any social groups and creating a cohesive society not exposed to social exclusion due to lack of access to primary and secondary activities. The paper presents some results of the preliminary analysis on transport equity in Cracow. The basic equity level which has been considered here concerns senior citizens, older people living in Cracow area, in terms of their accessibility to transport infrastructure. Taking into account living conditions of elderly pedestrians, contour measures were used, in order to determine accessibility as equity indicator.

  5. Link prediction in a MeSH co-occurrence network: preliminary results.

    Science.gov (United States)

    Kastrin, Andrej; Rindflesch, Thomas C; Hristovski, Dimitar

    2014-01-01

    Literature-based discovery (LBD) refers to automatic discovery of implicit relations from the scientific literature. Co-occurrence associations between biomedical concepts are commonly used in LBD. These co-occurrences can be represented as a network that consists of a set of nodes representing concepts and a set of edges representing their relationships (or links). In this paper we propose and evaluate a methodology for link prediction of implicit connections in a network of co-occurring Medical Subject Headings (MeSH®). The proposed approach is complementary to, and may augment, existing LBD methods. Link prediction was performed using Jaccard and Adamic-Adar similarity measures. The preliminary results showed high prediction performance, with area under the ROC curve of 0.78 and 0.82 for the two similarity measures, respectively.

  6. Raman scattering investigation of the water-bridge phenomenon: Some preliminary results

    Directory of Open Access Journals (Sweden)

    Francesco Aliotta

    2010-09-01

    Full Text Available A floating water-bridge is formed if a high-voltage direct current is applied between two beakers filled of chemically pure water. Raman spectra of the OH-stretching region have been obtained at ambient condition of temperature and pressure. These preliminary results seem to indicate that the hydrogen-bond structure is only slightly modified by the presence of the electric field applied to form the floating water-bridge in agreement with recent neutron scattering investigation. In fact, the polarized Raman spectrum of the pure water and of the water-bridge is almost superimposable. We are planning to carry out further spectroscopic analysis, at different thermodynamic conditions, for better understanding the role played by the hydrogen-bond in driving the formation of the floating water-bridge.

  7. Ayahuasca-assisted therapy for addiction: results from a preliminary observational study in Canada.

    Science.gov (United States)

    Thomas, Gerald; Lucas, Philippe; Capler, N Rielle; Tupper, Kenneth W; Martin, Gina

    2013-03-01

    This paper reports results from a preliminary observational study of ayahuasca-assisted treatment for problematic substance use and stress delivered in a rural First Nations community in British Columbia, Canada. The "Working with Addiction and Stress" retreats combined four days of group counselling with two expert-led ayahuasca ceremonies. This study collected pre-treatment and six months follow-up data from 12 participants on several psychological and behavioral factors related to problematic substance use, and qualitative data assessing the personal experiences of the participants six months after the retreat. Statistically significant (p ayahuasca-assisted therapy appears to be associated with statistically significant improvements in several factors related to problematic substance use among a rural aboriginal population. These findings suggest participants may have experienced positive psychological and behavioral changes in response to this therapeutic approach, and that more rigorous research of ayahuasca-assisted therapy for problematic substance use is warranted.

  8. Recent improvements in the calculation of prompt fission neutron spectra: Preliminary results

    International Nuclear Information System (INIS)

    Madland, D.G.; LaBauve, R.J.; Nix, J.R.

    1989-01-01

    We consider three topics in the refinement and improvement of our original calculations of prompt fission neutron spectra. These are an improved calculation of the prompt fission neutron spectrum N(E) from the spontaneous fission of 252 Cf, a complete calculation of the prompt fission neutron spectrum matrix N(E,E n ) from the neutron-induced fission of 235 U, at incident neutron energies ranging from 0 to 15 MeV, and an assessment of the scission neutron component of the prompt fission neutron spectrum. Preliminary results will be presented and compared with experimental measurements and an evaluation. A suggestion is made for new integral cross section measurements. (author). 45 refs, 12 figs, 1 tab

  9. Measurements of entanglement over a kilometric distance to test superluminal models of Quantum Mechanics: preliminary results.

    Science.gov (United States)

    Cocciaro, B.; Faetti, S.; Fronzoni, L.

    2017-08-01

    As shown in the EPR paper (Einstein, Podolsky e Rosen, 1935), Quantum Mechanics is a non-local Theory. The Bell theorem and the successive experiments ruled out the possibility of explaining quantum correlations using only local hidden variables models. Some authors suggested that quantum correlations could be due to superluminal communications that propagate isotropically with velocity vt > c in a preferred reference frame. For finite values of vt and in some special cases, Quantum Mechanics and superluminal models lead to different predictions. So far, no deviations from the predictions of Quantum Mechanics have been detected and only lower bounds for the superluminal velocities vt have been established. Here we describe a new experiment that increases the maximum detectable superluminal velocities and we give some preliminary results.

  10. Acacia tortilis subsp. heteracantha productivity in the Tugela Dry Valley Bushveld: preliminary results

    Directory of Open Access Journals (Sweden)

    S. J. Milton

    1983-11-01

    Full Text Available Acacia tortilis Hayne subsp.  heteracantha (Burch. Brenan dominates secondary succession in the Tugela Dry Valley Bushveld of the Natal midlands. The parts of KwaZulu in this veld type are impoverished, overpopulated and over-grazed. Preliminary results indicate that at a density of 2 700 ± 600 trees/ha there is a standing crop of c.2,87 t/ha (DM of acacia twigs suitable for hand pruning and milling into fodder, but that this is a costly process. Herbage biomass peaked at 0,73 t/ha (DM. Veld condition assessments suggested a stocking rate of|0,l AU/ha (grazers, but actual grazer stocking rates may be many times this density. It is recommended that the browser/grazer ratio be altered to make use of the c. 1,05 t/ha (DM of shoot growth produced annually by A. tortilis subsp.  heteracantha.

  11. THE BREED TRACEABILITY OF SHEEP MEAT BY USING MOLECULAR GENETICS METHODS: PRELIMINARY RESULTS

    Directory of Open Access Journals (Sweden)

    A. Bramante

    2011-04-01

    Full Text Available Safety and quality foods of animal origin are extremely important for consumers. The aim of this work was to evaluate the feasibility of a method to track the breed origin of sheep meat all along the production chain using molecular genetics tools. A total of 800 samples evenly distributed among seven Italian sheep breeds have been typed at 19 STR markers, together with 90 samples from both imported sheep animals and local crossbred animals withdrawn at slaughterhouses. A maximum likelihood assignment test was adopted to evaluate STR ability to allocate samples to their true breed of origin. Sarda animals were all correctly allocated, as well as more than 98% of samples from the other breeds. Only slightly worst allocation performances were observed for imported and crossbred animals. Preliminary results seem quite promising, though further analyses will be needed in order to better understand the statistical power of such an assignment test before implementation in the sheep meat production chain.

  12. Preliminary Results from Simulations of Temperature Oscillations in Stirling Engine Regenerator Matrices

    DEFF Research Database (Denmark)

    Andersen, Stig Kildegård; Carlsen, Henrik; Thomsen, Per Grove

    2006-01-01

    . The model contains a system of ordinary differential equations (ODEs) derived from mass and energy balances for gas filled control volumes and energy balances for regenerator matrix control masses. Interpolation methods with filtering properties are used for state variables at control volume interfaces...... to reduce numerical diffusion and/or non-physical oscillations. Loss mechanisms are included directly in the governing equations as terms in the mass and energy balances. Steady state periodic solutions that satisfy cyclic boundary conditions and integral conditions are calculated using a custom built...... shooting method. It has been found possible to accurately solve the stiff ODE system that describes the coupled thermodynamics of the gas and the regenerator matrix and to reliably find periodic steady state solutions to the model. Preliminary results indicate that the regenerator matrix temperature...

  13. Excimer laser photorefractive keratectomy for myopia: preliminary results at one year

    Science.gov (United States)

    Thompson, Keith P.; Waring, George O., III; Steinert, Roger; Durrie, Daniel S.; Gordon, Michael; Brint, Stephen F.

    1992-08-01

    Excimer laser photorefractive keratectomy (PRK) is presently under investigation for the correction of myopia. Two companies in the United States, Summit Technology (Waltham, Mass.) and VisX, Inc. (Sunnyvale, Calif.) have developed excimer laser delivery systems and are participating in an FDA study to determine the safety and efficacy of PRK. This is a preliminary report on the refractive and visual results of 51 of 100 eyes treated between October 10, 1990 and March 7, 1991 by the Summit Technology UV200LA excimer laser under the FDA Phase IIB FDA protocol one year after surgery. More detailed information on eight patients treated at Emory University Eye Center (Emory Subgroup) is also reported.

  14. 242Pu: Preliminary evaluation with consideration of 240Pu, and some sensitivity results

    International Nuclear Information System (INIS)

    Jary, J.; Lagrange, C.; Philis, C.

    1978-01-01

    A preliminary evaluation of 242 Pu nuclear data is presented for the neutron energy range from 10 keV to 20 MeV. The fission cross section is based upon recent experimental measurements on 242 Pu. The remaining cross sections have been calculated using various nuclear models with parameters obtained mainly by both fits on 240 Pu experimental data and general reflexions on the actinides. Particular care has been taken of the direct interactions. The laws of secondary neutron energy spectra and the average number of neutrons produced per fission have been evaluated. The results have been placed in ENDF/BIV format and combined with the low energy region of ENDF/BIV MAT = 1161 data to make complete the evaluation over the whole energy range 10 -5 eV - 20 MeV. Finally, the sensitivities of some of these nuclear data available for reactor calculations are given in terms of the variation of the calculated critical masses

  15. Hybridization among wild boars, local breeds and commercial breeds - preliminary results

    DEFF Research Database (Denmark)

    Iacolina, Laura; Bakan, Jana; Cubric-Curik, Vlatka

    Sus scrofa is one of the most widespread mammal species and it is heavily managed throughout its range in both its domestic and wild form. The wild boar is one of the most relevant game species in Europe but it is also considered a pest as it can produce economically important crop damages....... Hybridization with the domestic pig is known to occur in Europe, however the degree and extent of the phenomenon is not fully understood yet. Introgression is considered to be a treat to biodiversity and could lead to loss of local adaptation or introgression in the wild population of human selected genes...... gradients in variability levels among the analysed wild and domestic populations. This preliminary results will be further investigated to address the possible presence of hybrid zone(s) in Europe and the possible implications for conservation and management of both wild populations and local pig breeds...

  16. Thermoluminescent dosemeters characterization for patient dosimetry in diagnostic radiology preliminary results

    International Nuclear Information System (INIS)

    Castro, William J.; Squair, Peterson L.; Gonzaga, Natalia B.; Nogueira, Maria S.; Silva, Teogenes A. da

    2009-01-01

    The determination of the metrological characteristics of thermoluminescent (TL) dosimeters plays an important role in dosimetry of patients submitted to x-ray examinations for diagnostic purpose. Entrance surface doses can be measured with TL dosimeters to verify the compliance with the diagnostic reference levels. Organ doses can be estimated through TL measurements in an anthropomorphic phantom which it allows the radiation risk assessment. In this work, LiF:Mg,Ti (TLD-100) rod and chip thermoluminescent dosimeters were characterized considering their use for patient dosimetry in computerized tomography and mammography. Preliminary results showed that TL dosimeters have a response reproducibility of 7.8% and 4.8% and homogeneity of 18.4% and 6.5% for rod and chip shapes, respectively. (author)

  17. NEOLITHIC PLANT USE IN THE WESTERN MEDITERRANEAN REGION: PRELIMINARY RESULTS FROM THE AGRIWESTMED PROJECT

    Directory of Open Access Journals (Sweden)

    L. Peña-Chocarro

    2013-04-01

    Full Text Available This contribution focuses on the preliminary results of the AGRIWESTMED project which focuses on the archaeobotanical analyses of early Neolithic sites in the western Mediterranean region (both in Iberia and in northern Morocco. A large number of sites has been studied producing an interesting dataset of plant remains which places the earliest examples of domesticated plants in the second half of the 6th millennium cal BC. Plant diversity is high as it is shown by the large number of species represented: hulled and naked wheats, barley, peas, fava beans, vetches, lentils and grass peas. To more crops, poppy and flax, are also part of the first agricultural crops of the area. Although agriculture seems to occupy a first place in the production of food, gathering is well represented in the Moroccan sites where a large number of species has been identified. 

  18. Fuzzy-logic-based hybrid locomotion mode classification for an active pelvis orthosis: Preliminary results.

    Science.gov (United States)

    Yuan, Kebin; Parri, Andrea; Yan, Tingfang; Wang, Long; Munih, Marko; Vitiello, Nicola; Wang, Qining

    2015-01-01

    In this paper, we present a fuzzy-logic-based hybrid locomotion mode classification method for an active pelvis orthosis. Locomotion information measured by the onboard hip joint angle sensors and the pressure insoles is used to classify five locomotion modes, including two static modes (sitting, standing still), and three dynamic modes (level-ground walking, ascending stairs, and descending stairs). The proposed method classifies these two kinds of modes first by monitoring the variation of the relative hip joint angle between the two legs within a specific period. Static states are then classified by the time-based absolute hip joint angle. As for dynamic modes, a fuzzy-logic based method is proposed for the classification. Preliminary experimental results with three able-bodied subjects achieve an off-line classification accuracy higher than 99.49%.

  19. The Agricultural Model Intercomparison and Improvement Project (AgMIP): Progress and Preliminary Results

    Science.gov (United States)

    Rosenzweig, C.

    2011-12-01

    The Agricultural Model Intercomparison and Improvement Project (AgMIP) is a distributed climate-scenario simulation exercise for historical model intercomparison and future climate change conditions with participation of multiple crop and agricultural trade modeling groups around the world. The goals of AgMIP are to improve substantially the characterization of risk of hunger and world food security due to climate change and to enhance adaptation capacity in both developing and developed countries. Recent progress and the current status of AgMIP will be presented, highlighting three areas of activity: preliminary results from crop pilot studies, outcomes from regional workshops, and emerging scientific challenges. AgMIP crop modeling efforts are being led by pilot studies, which have been established for wheat, maize, rice, and sugarcane. These crop-specific initiatives have proven instrumental in testing and contributing to AgMIP protocols, as well as creating preliminary results for aggregation and input to agricultural trade models. Regional workshops are being held to encourage collaborations and set research activities in motion for key agricultural areas. The first of these workshops was hosted by Embrapa and UNICAMP and held in Campinas, Brazil. Outcomes from this meeting have informed crop modeling research activities within South America, AgMIP protocols, and future regional workshops. Several scientific challenges have emerged and are currently being addressed by AgMIP researchers. Areas of particular interest include geospatial weather generation, ensemble methods for climate scenarios and crop models, spatial aggregation of field-scale yields to regional and global production, and characterization of future changes in climate variability.

  20. The semiology of psychogenic nonepileptic seizures revisited: Can video alone predict the diagnosis? Preliminary data from a prospective feasibility study.

    Science.gov (United States)

    Erba, Giuseppe; Giussani, Giorgia; Juersivich, Adam; Magaudda, Adriana; Chiesa, Valentina; Laganà, Angela; Di Rosa, Gabriella; Bianchi, Elisa; Langfitt, John; Beghi, Ettore

    2016-05-01

    To investigate if, when, and to what extent visual information contained in a video-recorded event allows experienced epileptologists to predict the diagnosis of psychogenic nonepileptic seizures (PNES) without the aid of electroencephalography (EEG). Five neurologists actively practicing in epilepsy centers in Italy and the United States were asked to review 23 videos capturing representative events of 21 unselected consecutive patients admitted for long-term video-EEG monitoring (VEM). Four raters were blind to EEG and clinical information; one rater was not. They were requested to (1) rate the videos for quality and content; (2) choose among four diagnoses: (a) epileptic seizures (ES); (b) PNES; (c) Other nonepileptic seizures (NES; (syncope, movement disorder, migraine, etc.); (d) "Cannot Say"; and (3) explain in their own words the main reasons leading to the diagnosis of choice. All raters predicted the diagnosis correctly in 7 of 23 videos (all ES or PNES) (30.4%), whereas all raters failed in 5 of 23 cases (three Other NES, one PNES, one Cannot Say) (21.7%). The conditions that facilitate, and those that interfere with, a confident diagnosis were predictable. Degree of accuracy among raters was not uniform and was consistently better in three raters. Two among the four blind raters were as accurate as the rater who was not blinded. Interrater agreement was "moderate" (k = 0.52) for the overall group; "moderate" for ES (k = 0.53); "substantial" for PNES (k = 0.63); "fair" for Other NES (k = 0.21)-similar to the results obtained in a previous study evaluating the reliability of combined video-EEG. In about one third of cases, a confident diagnosis of PNES/ES can be established on clinical grounds based on video data alone. Our results benefit all affected patients, particularly those with no access to video-EEG monitoring units. Wiley Periodicals, Inc. © 2016 International League Against Epilepsy.

  1. First results with a lab-on-a-chip system for a fast Phytophthora diagnosis.

    Science.gov (United States)

    Sonja Horatzek; Stephan König; Stefan Wagner; Sabine Werres; Lydia Schwenkbier; Karina Weber; Jörg. Weber

    2013-01-01

    For Phytophthora spp. that are quarantine or regulated organisms, highly specific and sensitive diagnostic tools are recommended for surveys and monitoring. Furthermore, these diagnostic techniques should give results within a short time and should be not be too expensive. The techniques currently used for routine diagnosis of ...

  2. Preliminary Results from an Integrated Airborne EM and Aeromagnetic Survey in Yellowstone National Park

    Science.gov (United States)

    Dickey, K.; Holbrook, W. S.; Finn, C.; Auken, E.; Carr, B.; Sims, K. W. W.; Bedrosian, P.; Lowenstern, J. B.; Hurwitz, S.; Pedersen, J. B. B.

    2017-12-01

    Yellowstone National Park hosts over 10,000 thermal features (e.g. geysers, fumaroles, mud pots, and hot springs), yet little is known about the circulation depth of meteoric water feeding these features, nor the lithological and structural bounds on the pathways that guide deep, hot fluids to the surface. Previous near-surface geophysical studies have been effective in imaging shallow hydrothermal pathways in some areas of the park, but these methods are difficult to conduct over the large areas needed to characterize entire hydrothermal systems. Transient electromagnetic (TEM) soundings and 2D direct current (DC) resistivity profiles show that hydrothermal fluids at active sites have a higher electrical conductivity than the surrounding hydrothermally inactive areas. For that reason, airborne TEM is an effective method to characterize large areas and identify hydrothermally active and inactive zones using electrical conductivity. Aeromagnetic data have been useful in mapping faults that localize hot springs, making the integration of aeromagnetic and EM data effective for structurally characterizing fluid pathways. Here we present the preliminary results from an airborne transient electromagnetic (TEM) and magnetic survey acquired jointly by the U.S. Geological Survey (USGS) and the University of Wyoming (UW) in November 2016. We integrate the EM and magnetic data for the purpose of edge detection of rhyolite flow boundaries as well as source depth of hydrothermal features. The maximum horizontal gradient technique applied on magnetic data is a useful tool that used to estimate source depth as well as indicate faults and fractures. The integration of EM with magnetics allows us to distinguish hydrothermally altered fault systems that guide fluids in the subsurface. We have used preliminary 2D inversions of EM from Aarhus Workbench to delineate rhyolite flow edges in the upper 300-600 meters and cross-checked those boundaries with the aeromagnetic map.

  3. Preliminary results on photometric properties of materials at the Sagan Memorial Station, Mars

    Science.gov (United States)

    Johnson, J. R.; Kirk, R.; Soderblom, L.A.; Gaddis, L.; Reid, R.J.; Britt, D.T.; Smith, P.; Lemmon, M.; Thomas, N.; Bell, J.F.; Bridges, N.T.; Anderson, R.; Herkenhoff, K. E.; Maki, J.; Murchie, S.; Dummel, A.; Jaumann, R.; Trauthan, F.; Arnold, G.

    1999-01-01

    Reflectance measurements of selected rocks and soils over a wide range of illumination geometries obtained by the Imager for Mars Pathfinder (IMP) camera provide constraints on interpretations of the physical and mineralogical nature of geologic materials at the landing site. The data sets consist of (1) three small "photometric spot" subframed scenes, covering phase angles from 20?? to 150??; (2) two image strips composed of three subframed images each, located along the antisunrise and antisunset lines (photometric equator), covering phase angles from ???0?? to 155??; and (3) full-image scenes of the rock "Yogi," covering phase angles from 48?? to 100??. Phase functions extracted from calibrated data exhibit a dominantly backscattering photometric function, consistent with the results from the Viking lander cameras. However, forward scattering behavior does appear at phase angles >140??, particularly for the darker gray rock surfaces. Preliminary efforts using a Hapke scattering model are useful in comparing surface properties of different rock and soil types but are not well constrained, possibly due to the incomplete phase angle availability, uncertainties related to the photometric function of the calibration targets, and/or the competing effects of diffuse and direct lighting. Preliminary interpretations of the derived Hapke parameters suggest that (1) red rocks can be modeled as a mixture of gray rocks with a coating of bright and dark soil or dust, and (2) gray rocks have macroscopically smoother surfaces composed of microscopically homogeneous, clear materials with little internal scattering, which may imply a glass-like or varnished surface. Copyright 1999 by the American Geophysical Union.

  4. The application of Virtual Touch tissue quantification (VTQ) in diagnosis of thyroid lesions: A preliminary study

    International Nuclear Information System (INIS)

    Hou, Xiu-Juan; Sun, Ai-Xia; Zhou, Xian-Li; Ji, Qiao; Wang, Hong-Bo; Wei, Hong; Sun, Jia-Wei; Liu, Han

    2013-01-01

    Objectives: Virtual Touch tissue quantification (VTQ) is a quantified ultrasound (US) acoustic radiation force impulse (ARFI) imaging method that provides numerical measurements (wave-velocity values) of tissue stiffness. The purpose of this study was to detect whether VTQ could be applied to differentiate between benign and malignant thyroid lesions. Methods: Healthy subjects’ thyroid tissue and thyroid lesions were examined by VTQ to analyze their elasticity after conventional ultrasound. All the thyroid lesions were analyzed pathologically after surgery and correlated the VTQ values with the pathological results. Results: The VTQ value of healthy thyroid tissue, the benign lesions, and the malignant lesions were 1.69 ± 0.41 m/s, 2.03 ± 0.42 m/s, and 3.10 ± 1.08 m/s, respectively. The VTQ value of the malignant lesions was higher than that of the healthy thyroid tissue and the benign lesions (both p < 0.001). The VTQ value of the benign lesions was higher than that of the healthy thyroid tissue (p < 0.001). With a cutoff value of 2.42 m/s, the sensitivity, specificity, accuracy, positive predictive value, and negative predictive value for differentiating between the benign and the malignancy lesions were 80.00%, 89.23%, 87.05%, 69.56%, and 93.54%, respectively. Conclusions: VTQ could provide quantitative elasticity measurements, which might play an important role in differentiating between benign and malignant thyroid lesions

  5. Physiological parameters as a tool in the diagnosis of fibromyalgia syndrome in females: A preliminary study.

    Science.gov (United States)

    Elmas, Onur; Yildiz, Sedat; Bilgin, Suleyman; Demirci, Seden; Comlekci, Selcuk; Koyuncuoglu, Hasan Rifat; Akkus, Selami; Colak, Omer Halil; Etem Koklukaya; Arslan, Evren; Ozkan, Ozhan; Bilgin, Gurkan

    2016-01-15

    Although fibromyalgia (FM) syndrome is associated with many symptoms, there is as yet no specific finding or laboratory test diagnostic of this syndrome. The physical examination and laboratory tests may be helpful in figuring out this syndrome. The heart rate, respiration rate, body temperature (TEMP), height, body weight, hemoglobin level, erythrocyte sedimentation rate, white blood cell count, platelet count (PLT), rheumatoid factor and C-reactive protein levels and electrocardiograms (ECG) of FM patients were compared with those of control individuals. In addition, the predictive value of these tests was evaluated via receiver operating characteristic (ROC) analysis. The results showed that the TEMP and the PLT were higher in the FM group compared with the control group. Also, ST heights in ECGs which corresponds to a period of ventricle systolic depolarization, showed evidence of a difference between the FM and the control groups. There was no difference observed in terms of the other parameters. According to the ROC analysis, PLT, TEMP and ST height have predictive capacities in FM. Changes in hormonal factors, peripheral blood circulation, autonomous system activity disorders, inflammatory incidents, etc., may explain the increased TEMP in the FM patients. The high PLT level may signify a thromboproliferation or a possible compensation caused by a PLT functional disorder. ST depression in FM patients may interrelate with coronary pathology. Elucidating the pathophysiology underlying the increases in TEMP and PLT and the decreases in ST height may help to explain the etiology of FM. Copyright © 2015 Elsevier Inc. All rights reserved.

  6. Use of thermographic imaging in clinical diagnosis of small animal: preliminary notes

    Directory of Open Access Journals (Sweden)

    Veronica Redaelli

    2014-06-01

    Full Text Available INTRODUCTION. The authors, after a description of the physics of infrared thermographic technique (IRT, analyze the reading of images and the main applications in the veterinary field, compared to the existing literature on the subject and to their experimental researches. IRT lends itself to countless applications in biology, thanks to its characteristics of versatility, lack of invasiveness and high sensitivity. Probably the major limitation to its application in the animal lies in the ease of use and in its extreme sensitivity. MATERIALS AND METHODS. From September 2009 to October 2010, the experimental investigation with the thermo camera took into consideration 110 animals (92 dogs and 18 cats, without any selection criteria. All patients were brought to the Faculty of Veterinary Medicine in Milan University by the owner, to be examined by a specialist, or to undergo one of the following diagnostic procedures: X-rays, computed tomography, or ultrasound examinations; finally some patients were brought in for surgical procedures. With the consent of the owner, 1 to 10 thermographic images were recorded from each clinical case. Results. In this first experimental investigation, thermography has shown a high sensitivity (100%, but a low specificity (44%. This figure excludes the use of thermal imaging technology to replace other imaging techniques such as radiography, computed tomography and magnetic resonance imaging. Furthermore, it does not show any ability to recognize the etiology of the disease, but only the thermal alteration, and this is restricting its use. However, this experimental study has demonstrated that thermography can be used in veterinary medicine, and specifically in dogs and cats. It is hoped that in the field of targeted diseases this technique will become an important tool for diagnostic purposes by using working protocols validated and repeatable.

  7. The application of transabdominal 3D ultrasound for the diagnosis of gastric varices: A preliminary study

    Energy Technology Data Exchange (ETDEWEB)

    Maruyama, Hitoshi, E-mail: maru-cib@umin.ac.jp; Kamezaki, Hidehiro, E-mail: ugn29814@yahoo.co.jp; Kondo, Takayuki, E-mail: takakondonaika@yahoo.co.jp; Sekimoto, Tadashi, E-mail: tad_sekimoto@yahoo.co.jp; Shimada, Taro, E-mail: bobtaro51@yahoo.co.jp; Takahashi, Masanori, E-mail: machat1215@yahoo.co.jp; Yokosuka, Osamu, E-mail: yokosukao@faculty.chiba-u.jp

    2013-09-15

    Objective: The aim of this study was to determine the feasibility of using transabdominal three-dimensional (3D) colour Doppler ultrasound as a non-invasive tool to demonstrate and quantify gastric varices. Subjects and methods: A phantom study compared the 3D water flow volume data in a hose with the actual volume inside the hose at three different flow velocities. The prospective clinical study examined the reliability and reproducibility of 3D volume data for gastric varices (mild 28, moderate 26, large 8) in 62 patients. The 3D images were acquired using the colour Doppler with both convex and micro-convex probes. Results: The phantom study showed a 12.4–17.6% difference between the 3D data and the actual volume with no difference between the two types of probes or three velocities. The detectability of gastric varices was identical between the two probes (54/62, 87.1%). However, the scanning efficiency was significantly greater for the micro-convex probe (66.9 ± 14.1%) than the convex probe (57.3 ± 14%, p = 0.012). Body mass index was the only factor that had a significant relationship with the detectability of varices. The mean volume (mL) of the 3D signal was 0.82 ± 0.74 for mild varices, 5.48 ± 3.84 for moderate varices, and 10.63 ± 6.67 for large varices with significant differences between different grades. The intra-/inter-rater reliability was excellent. Conclusion: The method of 3D colour Doppler ultrasound is reliable and reproducible in the quantitative assessment of vascular volume and is applicable for grading gastric varices. This study may offer a practical usefulness for 3D ultrasonography as an alternative to endoscopy.

  8. Conservative surgery and radiotherapy in the treatment of breast cancer. Preliminary results of 148 patients

    International Nuclear Information System (INIS)

    Faria, S.L.; Chiminazzo Junior, H.; Koseki, N.; Oliveira Filho, J.A. de

    1986-01-01

    The combination of tumoral resection and radiotherapy with preservation of the breast is called conservative treatment of breast cancer. The literature considers this treatment a good option if used by an experient team and with appropriate equipment. This paper shows the results of 148 cases of breast cancer treated by this conservative approach at Centro de Oncologia Campinas. Follow-up varied from 3 to 87 months (mean 28) considered by the histological diagnosis. Overall actuarial survival of 5 years was 77% disease-free survival 55%. Twelve patients (8%) presented local relapse and 13 (9%) had distant metastases as the first therapeutic failure. Cosmetic results were considered good and fair in 89% of patients. These results are similar to others published in the literature (Author) [pt

  9. Preliminary results of local earthquake tomography around Bali, Lombok, and Sumbawa regions

    International Nuclear Information System (INIS)

    Nugraha, Andri Dian; Puspito, Nanang T; Yudistira, Tedi; Kusnandar, Ridwan; Sakti, Artadi Pria

    2015-01-01

    Bali, Sumbawa, and Lombok regions are located in active tectonic influence by Indo-Australia plate subducts beneath Sunda plate in southern part and local back-arc thrust in northern part the region. Some active volcanoes also lie from eastern part of Java, Bali, Lombok and Sumbawa regions. Previous studies have conducted subsurface seismic velocity imaging using regional and global earthquake data around the region. In this study, we used P-arrival time from local earthquake networks compiled by MCGA, Indonesia within time periods of 2009 up to 2013 to determine seismic velocity structure and simultaneously hypocenter adjustment by applying seismic tomography inversion method. For the tomographic inversion procedure, we started from 1-D initial velocity structure. We evaluated the resolution of tomography inversion results through checkerboard test and calculating derivative weigh sum. The preliminary results of tomography inversion show fairly clearly high seismic velocity subducting Indo-Australian and low velocity anomaly around volcano regions. The relocated hypocenters seem to cluster around the local fault system such as back-arc thrust fault in northern part of the region and around local fault in Sumbawa regions. Our local earthquake tomography results demonstrated consistent with previous studies and improved the resolution. For future works, we will determine S-wave velocity structure using S-wave arrival time to enhance our understanding of geological processes and for much better interpretation

  10. Impulsivity in Multiplayer Online Battle Arena Gamers: Preliminary Results on Experimental and Self-Report Measures

    Science.gov (United States)

    Nuyens, Filip; Deleuze, Jory; Maurage, Pierre; Griffiths, Mark D.; Kuss, Daria J.; Billieux, Joël

    2016-01-01

    Background and aims Multiplayer Online Battle Arena (MOBA) games have become the most popular type of video games played worldwide, superseding the playing of Massively Multiplayer Online Role-Playing Games and First-Person Shooter games. However, empirical studies focusing on the use and abuse of MOBA games are still very limited, particularly regarding impulsivity, which is an indicator of addictive states but has not yet been explored in MOBA games. In this context, the objective of the present study is to explore the associations between impulsivity and symptoms of addictive use of MOBA games in a sample of highly involved League of Legends (LoL, currently the most popular MOBA game) gamers. Methods Thirty-six LoL gamers were recruited and completed both experimental (Single Key Impulsivity Paradigm) and self-reported impulsivity assessments (s-UPPS-P Impulsive Behavior Scale, Barratt Impulsiveness Scale), in addition to an assessment of problematic video game use (Problematic Online Gaming Questionnaire). Results Results showed links between impulsivity-related constructs and signs of excessive MOBA game involvement. Findings indicated that impaired ability to postpone rewards in an experimental laboratory task was strongly related to problematic patterns of MOBA game involvement. Although less consistent, several associations were also found between self-reported impulsivity traits and signs of excessive MOBA game involvement. Conclusions Despite these results are preliminary and based upon a small (self-selected) sample, the present study highlights potential psychological factors related to the addictive use of MOBA games. PMID:27156376

  11. New large solar photocatalytic plant: set-up and preliminary results.

    Science.gov (United States)

    Malato, S; Blanco, J; Vidal, A; Fernández, P; Cáceres, J; Trincado, P; Oliveira, J C; Vincent, M

    2002-04-01

    A European industrial consortium called SOLARDETOX has been created as the result of an EC-DGXII BRITE-EURAM-III-financed project on solar photocatalytic detoxification of water. The project objective was to develop a simple, efficient and commercially competitive water-treatment technology, based on compound parabolic collectors (CPCs) solar collectors and TiO2 photocatalysis, to make possible easy design and installation. The design, set-up and preliminary results of the main project deliverable, the first European industrial solar detoxification treatment plant, is presented. This plant has been designed for the batch treatment of 2 m3 of water with a 100 m2 collector-aperture area and aqueous aerated suspensions of polycrystalline TiO2 irradiated by sunlight. Fully automatic control reduces operation and maintenance manpower. Plant behaviour has been compared (using dichloroacetic acid and cyanide at 50 mg l(-1) initial concentration as model compounds) with the small CPC pilot plants installed at the Plataforma Solar de Almería several years ago. The first results with high-content cyanide (1 g l(-1)) waste water are presented and plant treatment capacity is calculated.

  12. The MACHO Project: Preliminary Results from 4 years of SMC observations.

    Science.gov (United States)

    Vandehei, T.; Griest, K.; Lehner, M.; Alcock, C.; Alves, D.; Cook, K.; Marshall, S.; Minniti, D.; Allsman, R.; Axelrod, T.; Freeman, K.; Peterson, B.; Rodgers, A.; Pratt, M.; Becker, A.; Stubbs, C.; Tomaney, A.; Bennett, D.; Quinn, P.; Sutherland, W.; Welch, D.

    1997-12-01

    The MACHO project is a search for dark matter in the form of massive compact halo objects(MACHOs). The project has photometrically monitored tens of millions of stars in the Large Magellanic Cloud (LMC), Small Magellanic Cloud (SMC), and Galactic bulge in search of rare gravitational microlensing events caused by these otherwise invisible objects. Microlensing toward the LMC has allowed powerful statements to be made about the dark population in the halo of our Galaxy, indicating that the MACHO halo fraction could be as high as f=0.5 with a most probable MACHO mass being ~ 0.5Msun. However, to date the LMC has been the only line of sight out of our Galaxy's halo. Clearly, another line of sight would provide a consistency check on these results, as well as another contraint on models of the halo, in particular on halo flattening. The SMC affords us this second line of sight. Here we give a status report on our upcoming 4 year results toward the SMC. We present the results of a preliminary analysis on over 2.2 million stars from 3 square degrees and discuss the implications for the dark matter in the halo of our Galaxy. A detailed analysis of the microlensing candidates toward the SMC, with blending and parallax fits, will be shown. This work is dedicated to the memory of Alex Rodgers.

  13. The genetic variability of the Podolica cattle breed from the Gargano area. Preliminary results

    Directory of Open Access Journals (Sweden)

    Dario Cianci

    2010-01-01

    Full Text Available The Podolica cattle breed is autochthonous of Southern Italy and denoted by its particular rusticity. This study presents the preliminary results of the genetic characterization of the Podolica breed using DNA STR markers. A total of 20 microsatellite loci were analysed in 79 individuals reared in the Gargano area. Number of polymorphisms, allele fre- quencies, deviations from Hardy-Weinberg proportions, linkage disequilibrium between loci and genetic similarities between animals were calculated. The results showed a high deficiency of heterozygotes, the observed mean of het- erozygosis being 0.449, whereas the expected mean was 0.766. Many markers showed also deviations from the Hardy- Weinberg proportions and significant linkage disequilibrium between loci. However the genetic similarity within the pop- ulation was low (0.281 and the average number of alleles per locus was high (10, representing a high genetic vari- ability. In order to explain these results, a stratification of the breed in sub-populations with a high interior genetic homo- geneity but markedly differentiated one from each other could be hypothesized; this situation probably derived from non- random mating within each herd (consanguinity and from the lack of exchange of genetic material between the herds. A further study is needed on a wider sample and extending the analysis to FAO-ISAG microsatellite panel in order to con- firm this hypothesis. This could eventually provide the information necessary for the correct management of the repro- ductive schemes and for genomic traceability of meat production.

  14. Impulsivity in Multiplayer Online Battle Arena Gamers: Preliminary Results on Experimental and Self-Report Measures.

    Science.gov (United States)

    Nuyens, Filip; Deleuze, Jory; Maurage, Pierre; Griffiths, Mark D; Kuss, Daria J; Billieux, Joël

    2016-06-01

    Background and aims Multiplayer Online Battle Arena (MOBA) games have become the most popular type of video games played worldwide, superseding the playing of Massively Multiplayer Online Role-Playing Games and First-Person Shooter games. However, empirical studies focusing on the use and abuse of MOBA games are still very limited, particularly regarding impulsivity, which is an indicator of addictive states but has not yet been explored in MOBA games. In this context, the objective of the present study is to explore the associations between impulsivity and symptoms of addictive use of MOBA games in a sample of highly involved League of Legends (LoL, currently the most popular MOBA game) gamers. Methods Thirty-six LoL gamers were recruited and completed both experimental (Single Key Impulsivity Paradigm) and self-reported impulsivity assessments (s-UPPS-P Impulsive Behavior Scale, Barratt Impulsiveness Scale), in addition to an assessment of problematic video game use (Problematic Online Gaming Questionnaire). Results Results showed links between impulsivity-related constructs and signs of excessive MOBA game involvement. Findings indicated that impaired ability to postpone rewards in an experimental laboratory task was strongly related to problematic patterns of MOBA game involvement. Although less consistent, several associations were also found between self-reported impulsivity traits and signs of excessive MOBA game involvement. Conclusions Despite these results are preliminary and based upon a small (self-selected) sample, the present study highlights potential psychological factors related to the addictive use of MOBA games.

  15. Preliminary results of local earthquake tomography around Bali, Lombok, and Sumbawa regions

    Energy Technology Data Exchange (ETDEWEB)

    Nugraha, Andri Dian, E-mail: nugraha@gf.itb.ac.id; Puspito, Nanang T; Yudistira, Tedi [Global Geophysical Reserach Group, Faculty of Mining and Petroleum Engineering, Institute of Technology Bandung, JlGanesa 10, Bandung, 40132 (Indonesia); Kusnandar, Ridwan; Sakti, Artadi Pria [Meteorological, Climatological, and Geophysical Agency (MCGA) of Indonesian, Jakarta (Indonesia)

    2015-04-24

    Bali, Sumbawa, and Lombok regions are located in active tectonic influence by Indo-Australia plate subducts beneath Sunda plate in southern part and local back-arc thrust in northern part the region. Some active volcanoes also lie from eastern part of Java, Bali, Lombok and Sumbawa regions. Previous studies have conducted subsurface seismic velocity imaging using regional and global earthquake data around the region. In this study, we used P-arrival time from local earthquake networks compiled by MCGA, Indonesia within time periods of 2009 up to 2013 to determine seismic velocity structure and simultaneously hypocenter adjustment by applying seismic tomography inversion method. For the tomographic inversion procedure, we started from 1-D initial velocity structure. We evaluated the resolution of tomography inversion results through checkerboard test and calculating derivative weigh sum. The preliminary results of tomography inversion show fairly clearly high seismic velocity subducting Indo-Australian and low velocity anomaly around volcano regions. The relocated hypocenters seem to cluster around the local fault system such as back-arc thrust fault in northern part of the region and around local fault in Sumbawa regions. Our local earthquake tomography results demonstrated consistent with previous studies and improved the resolution. For future works, we will determine S-wave velocity structure using S-wave arrival time to enhance our understanding of geological processes and for much better interpretation.

  16. Facial emotional recognition in schizophrenia: preliminary results of the virtual reality program for facial emotional recognition

    Directory of Open Access Journals (Sweden)

    Teresa Souto

    2013-01-01

    Full Text Available BACKGROUND: Significant deficits in emotional recognition and social perception characterize patients with schizophrenia and have direct negative impact both in inter-personal relationships and in social functioning. Virtual reality, as a methodological resource, might have a high potential for assessment and training skills in people suffering from mental illness. OBJECTIVES: To present preliminary results of a facial emotional recognition assessment designed for patients with schizophrenia, using 3D avatars and virtual reality. METHODS: Presentation of 3D avatars which reproduce images developed with the FaceGen® software and integrated in a three-dimensional virtual environment. Each avatar was presented to a group of 12 patients with schizophrenia and a reference group of 12 subjects without psychiatric pathology. RESULTS: The results show that the facial emotions of happiness and anger are better recognized by both groups and that the major difficulties arise in fear and disgust recognition. Frontal alpha electroencephalography variations were found during the presentation of anger and disgust stimuli among patients with schizophrenia. DISCUSSION: The developed program evaluation module can be of surplus value both for patient and therapist, providing the task execution in a non anxiogenic environment, however similar to the actual experience.

  17. Evaluation of usefulness of scintigraphic imaging in diagnosis of intrathecal drug delivery system malfunction – a preliminary report

    International Nuclear Information System (INIS)

    Teodorczyk, Jacek; Szmuda, Tomasz; Siemiński, Mariusz; Lass, Piotr; Słoniewski, Paweł

    2013-01-01

    Implantable intrathecal drug delivery systems (IDDS) are basic tool enabling chronic intrathecal pharmacotherapy. Lack of expected clinical results of IDDS therapy necessitates search for the cause with the help of diagnostic imaging methods among other things. Beside radiological techniques, it is also possible to visually assess IDDS systems by nuclear medicine methods. In this study we assess utility of radioisotopic methods in differential diagnosis of failure of therapy with IDDS systems. Scintigraphic studies were performed in selected patients with neurological diseases associated with spasticity, who had IDDS system implanted and were unable to maintain satisfying clinical effect of inrathecally infused baclofen. After emptying the IDDS system of the drug, radiotracer (99mTc-DTPA) solution was injected into the pump reservoir. Subsequently, a series of scintigraphic images was registered, demonstrating passage and distribution of the infused radiotracer. In all investigated cases, scintigraphic study resulted in acquiring relevant additional diagnostic information. Normal or disrupted distribution of radiotracer in spinal canal allowed for a diagnosis drug resistance or demonstrated presence of arachnoid adhesions respectively. Early appearance of radiotracer in blood was considered a proof of leak. Our examinations had decisive influence on further patient treatment, allowing for diagnosis of drug resistance in one patient or complication related to IDDS system in three other cases including breakage of a catheter, pump malfunction and arachnoid adhesions. Scintigraphic methods carry significant amount of information facilitating final diagnosis of the cause of IDDS therapy failure. They should become an important element complementing the diagnostic strategy in patients with suspected failure of intrathecal drug administration systems. Interpretation of radioisotopic studies, since they are purely functional, must be performed in strict relation to

  18. Subclinical myocardial dysfunction by tissue Doppler echocardiography in primary antiphospholipid syndrome: Preliminary results

    Directory of Open Access Journals (Sweden)

    Tarcila Fontes de Lima Gomes Lucena

    2018-01-01

    Conclusion: The present study demonstrated subclinical myocardial dysfunction using TDI in asymptomatic PAPS patients. TDI is non-invasive and cost effective. Prospective studies including a large number of participants in order to confirm these preliminary data are needed.

  19. Preliminary ten year results from a randomised single centre mass screening trial for abdominal aortic aneurysm

    DEFF Research Database (Denmark)

    Lindholt, Jes Sanddal; Juul, Søren; Fasting, H

    2006-01-01

    At present, several regions and countries are considering screening for abdominal aortic aneurysm (AAA). However, The Chichester Aneurysms Screening Trial has reported poor long term benefit of screening for AAA. We therefore supplement previously published data with a preliminary analysis...

  20. Telerehabilitation after arthroscopic subacromial decompression is effective and not inferior to standard practice: Preliminary results.

    Science.gov (United States)

    Pastora-Bernal, Jose Manuel; Martín-Valero, Rocío; Barón-López, Francisco Javier; Guerrero Moyano, Noelia; Estebanez-Pérez, María-José

    2017-01-01

    Background Telerehabilitation promises to improve quality, increase patient access and reduce costs in health care. Physiotherapy with exercises is generally recommended to restore function after surgery in patients with chronic subacromial syndrome. Relatively few studies have investigated the feasibility of telerehabilitation interventions in musculoskeletal and orthopaedic disorders. The aim of this study was to evaluate the feasibility and effectiveness of a customizable telerehabilitation intervention and compare with traditional care. Methods This research includes 18 consecutive patients with subacromial impingement who underwent arthroscopic subacromial decompression in a controlled clinical prospective study. Patients were randomized to either a 12-week telerehabilitation programme or the usual face-to-face physical therapy for immediate postoperative rehabilitation. We have developed a telerehabilitation system to provide services to patients who have undergone shoulder arthroscopy. An independent blinded observer performed postoperative follow-up after 4, 8, and 12 weeks. Results The preliminary efficacy of this telerehabilitation programme in terms of both physical and functional objective outcome measures was assessed on eight patients. Using the Constant-Murley score to evaluate functional outcome, patients in the telerehabilitation group were shown to have improved from a mean 43.50 ± 3.21 points to a mean 68.50 ± 0.86 points after 12 weeks. The physical and functional improvements in the telerehabilitation group were similar to those in the control group ( p = 0.213). There was a non-significant trend for greater improvements in the telerehabilitation group for most outcome measurements. Conclusion The results of this study provide evidence for the efficacy of telerehabilitation after shoulder arthroscopy in shoulder impingement syndrome. A telerehabilitation programme with range of motion, strengthening of the rotator cuff and scapula

  1. Preliminary results of a national quality audit programme in radiotherapy services in Cuba

    International Nuclear Information System (INIS)

    Dominguez Hung, L.; Larrinaga Cortina, E.F.; Campa Menendez, R.; Morales Lopez, J.L.; Garcia Yip, A.F.

    2001-01-01

    The current state of radiotherapy in Cuba has allowed to pass to a superior stage in the process of quality assurance, the establishment of a National Quality Audit Program (PNAC). The National Control Center for Medical Devices, as national regulator entity for the control and supervision of the medical devices of the National Health System, is responsible for the implementation of this program. This paper presents the preliminary results of the execution of the PNAC in teletherapy services with isotopic units of 60 Co. The audits were carried out according to the methodology settled down in the normalized procedure of operation of the PNAC. The physical aspects related with the treatment were audited, such as: the installation and unit's safety, mechanical and dosimetric aspects of the treatment unit and organizational aspects of the institution quality assurance program. Also carried out, in the clinical aspect, verifications of cases type planned by the qualified personnel of the service. The results corresponding to the determination of the reference dose for each institution were compared with those obtained in a postal audit with the International Atomic Energy Agency. These first audits allowed to evaluate the performance of the institutions' program of quality assurance and a feedback for the setting about to the PNAC. (author)

  2. Photodynamic therapy with green light for the treatment of vulvar lichen sclerosus - Preliminary results.

    Science.gov (United States)

    Osiecka, B J; Jurczyszyn, K; Nockowski, P; Murawski, M; Ziółkowski, P

    2017-03-01

    The standard treatment for lichen sclerosus (LS) is symptomatic and is primarily based on the chronic use of corticosteroids, sometimes resulting in unsatisfactory effects. Therefore, other non-pharmacological methods are being sought, which are less aggravating for the patient. LS can be treated topically by using photodynamic therapy (PDT) based on 5-aminolevulinic acid (5-ALA). Unfortunately, therapy with the red light is often connected with severe local pain during the illumination. Green light can also be characterised by its ability to turn on photodynamic reactions in cells. The aim of this study was an evaluation into the efficacy and tolerance of 5-ALA-PDT with a green light (540nm±15nm) in 11 patients with chronic LS that were characterised by severe itching. The disease lasted from 1.5 to 4 years. All the patients were treated with three sessions of PDT. Following treatment with PDT, a significant improvement of local status, as well as a reduction of the main symptom (pruritus), were observed. No patient complained of severe pain during the sessions that would have required an interruption of irradiation or local application of analgesics. Our preliminary results of using green light in PDT for superficial skin non-oncological lesions are very promising but require further studies. Copyright © 2016 Elsevier B.V. All rights reserved.

  3. Preliminary experimental results of tungsten wire-array Z-pinches on primary test stand

    Science.gov (United States)

    Huang, Xian-Bin; Zhou, Shao-Tong; Dan, Jia-Kun; Ren, Xiao-Dong; Wang, Kun-Lun; Zhang, Si-Qun; Li, Jing; Xu, Qiang; Cai, Hong-Chun; Duan, Shu-Chao; Ouyang, Kai; Chen, Guang-Hua; Ji, Ce; Wei, Bing; Feng, Shu-Ping; Wang, Meng; Xie, Wei-Ping; Deng, Jian-Jun; Zhou, Xiu-Wen; Yang, Yi

    2015-07-01

    The Primary Test Stand (PTS) developed at the China Academy of Engineering Physics is a 20 TW pulsed power driver, which can deliver a ˜10 MA, 70 ns rise-time (10%-90%) current to a short-circuit load and has important applications in Z-pinch driven inertial confinement fusion and high energy density physics. Preliminary results of tungsten wire-array Z-pinch experiments on PTS are presented. The load geometries investigated include 15-mm-tall cylindrical single and nested arrays with diameter ranging from 13 mm to 30 mm, consisting of 132-300 tungsten wires with 5-10 μm in diameter. Multiple diagnostics were fielded to characterize the x-ray radiation from wire-array Z pinches. The x-ray peak power (˜50 TW) and total radiated energy (˜500 kJ) were obtained from a single 20-mm-diam array with 80-ns stagnation time. The highest x-ray peak power up to 80 TW with 2.4 ns FWHM was achieved by using a nested array with 20-mm outer diameter, and the total x-ray energy from the nested array is comparable to that of single array. Implosion velocity estimated from the time-resolved image measurement exceeds 30 cm/μs. The detailed experimental results and other findings are presented and discussed.

  4. Triangular SPECT system for 3-D total organ volume imaging: Design concept and preliminary imaging results

    International Nuclear Information System (INIS)

    Lim, C.B.; Anderson, J.; Covic, J.

    1985-01-01

    SPECT systems based on 2-D detectors for projection data collection and filtered back-projection image reconstruction have the potential for true 3-D imaging, providing contiguous slice images in any orientation. Anger camera-based SPECT systems have the natural advantage supporting planar imaging clinical procedures. However, current systems suffer from two drawbacks; poor utilization of emitted photons, and inadequate system design for SPECT. A SPECT system consisting of three rectangular cameras with radial translation would offer the variable cylindrical FOV of 25 cm to 40 cm diameter allowing close detector access to the object. This system would provide optimized imaging for both brain and body organs in terms of sensitivity and resolution. For brain imaging a tight detector triangle with fan beam collimation, matching detector UFOV to the head, allows full 2 π utilization of emitted photons, resulting in >4 times sensitivity increase over the single detector system. Minification of intrinsic detector resolution in fan beam collimation further improves system resolution. For body organ imaging the three detectors with parallel hole collimators, rotating in non-circular orbit, provide both improved resolution and three-fold sensitivity increase. Practical challenges lie in ensuring perfect image overlap from three detectors without resolution degradation and artifact generation in order to benefit from the above improvements. An experimental system has been developed to test the above imaging concept and we have successfully demonstrated the superior image quality of the overlapped images. Design concept will be presented with preliminary imaging results

  5. [Endoscopic variceal ligation combined with partial splenic embolization: preliminary clinical results].

    Science.gov (United States)

    Huang, F; Liu, X; Nie, W

    1998-01-01

    Endoscopic variceal ligation combined with partial splenic embolization (EVL-PSE) was performed in a group of 13 patients with esophageal variceal bleeding and hypersplenism due to portal hypertension from January 1997 to March 1998. PSE was performed one to two weeks before or one week after initial EVL, and a range of 30% to 60% of the splenic parenchyma was embolized. Repeated EVL was performed at two week intervals until the varices were eradicated. Active bleeding in the nine patients was successfully controlled and all the varices of the 13 patients were eradicated after EVL-PSE. Eradication of the varices required two to five(mean 3.1) EVL sessions, follow-up ranging from 2 to 16 months(mean 6.9 months). In all but one case, no rebleeding occurred. All patients after PSE showed a good response on peripheral blood cell count and reduction of splenomegaly. No major complication or death related to the combination therapy was observed. Preliminary results in this study show that this combination therapy may result in more rapid eradication of the varices and reduce rebleeding after endoscopic variceal ligation. However, more data and studies may be necessary for further evaluation.

  6. Acute effects of thyroid hormone of glomerular filtration rate: Preliminary results

    International Nuclear Information System (INIS)

    Fommei, E; Mezzasalma, L; Scarlattini, M; Iervasi, G

    2001-01-01

    Observational studies indicate a high prevalence of hypothyroidism in the general hypertensive population. Cardiac output and peripheral resistances are influenced by triiodothyronine (T3), which has both and inotropic and vasodilatory effect. T3 also stimulates sympathetic activity, increases angiotensinogen and atrial natriuretic peptide and respectively decreases vasopressin levels. In the kidney, it increases GFR and decreases sodium reabsorption. We here report the first preliminary results (phase 1: acute effects) of a study aimed to investigate a possible role of renal haemodynamic modifications in the relationships between hypothyroidism and arterial hypertension. We studied six hypertensive patients with no renal disease and normal serum creatinine. Tc99m-DTPA scintigraphy was made twice, respectively before and 1.5-2 hrs after oral T3 (40μg) and GFR evaluated by the Gates method. Plasma free T3 increased in all the subjects (from 2.45±69 to 8.30±2.35 pg/ml, means ±SD), whereas lesser variations were observed for GFR (from 84.50±32.99 to 91.17±38.60ml/min). Definite data will be presented after having investigated a larger series of patients who are currently under recruitment. The results will possible clarify if T3 has either and immediate direct haemodynamic effect on GFR or rather a delayed 'genomic' effect (au)

  7. Localized Unresectable Pancreatic Cancer Treated with High Energy Neutrons and Chemotherapy at Fermilab - Preliminary Results

    Energy Technology Data Exchange (ETDEWEB)

    Saroja, K. R. [Unlisted, US, IL; Cohen, Lionel [Unlisted, US, IL; Hendrickson, Frank R. [Unlisted, US, IL; Mansell, JoAnne [Fermilab

    1990-01-01

    Between January 1985 and July 1989 a total of thirty-eight patients with locally advanced pancreatic cancer were treated with high energy neutrons at Fermilab. Twenty-one patients received only neutrons and seventeen were given chemotherapy in addition, either concurrently or subsequently following the completion of neutron irradiation. This is a retrospective study. Data were analyzed for tolerance, complications and survival. Three of the twenty-one (14%) patients who received only neutron beam therapy developed Grade ID or greater complications in the RTOG/EORTC scale. The median survival was 6.4 months. One of these patients is alive 10 months post treatment. Of seventeen patients who also received chemotherapy, five (29%) had severe complications. However, median survival was 13.5 months. Four of these seventeen patients are still alive at the time of this analysis. The preliminary results show that there is improvement in the survival of patients treated with combined neutron irradiation and chemotherapy. A pilot study to further evaluate these results in a larger group of patients is underway. Details of complications and chemotherapy regimen will be preseqted.

  8. PRELIMINARY RESULTS OF BOWL TRAPPING BEES (HYMENOPTERA, APOIDEA IN A SOUTHERN BRAZIL FOREST FRAGMENT

    Directory of Open Access Journals (Sweden)

    Rodrigo B. Gonçalves

    2013-05-01

    Full Text Available In recent years bowl traps have gained attention as a useful method for sampling bees and are now commonly used across the world for this purpose. However, specific questions about the method itself have not yet been tested on different regions of the globe. We present the preliminary results of bowl trapping in a Semidecidual Seasonal forest fragment in southern Brazil, including the test of two different color bowls, two different habitats, and the interaction of these variables in bee species number and composition. We used blue and yellow bowls in the border and in the core trails of the forest fragment. In five sampling days between October to December bowl traps captured 745 specimens of 37 morphospecies, with Halictinae bees being the richest and most abundant group. Non parametrical statistical analyses suggested that different colors of bowl traps influenced bee richness and composition and thus, they should be used together for a more complete sampling. Different trails influenced only the composition, while the interaction with different colors did not have a significant effect. These results, as well as the higher taxonomic composition of the inventoried bees, are similar to other studies reported in the literature.

  9. Preliminary Mission Results and Project Evaluation of the Delfi-C3 Nano-satellite

    Science.gov (United States)

    Bouwmeester, J.; Aalbers, G. T.; Ubbels, W. J.

    2008-08-01

    This paper discusses preliminary mission results of Delfi-C3 up till the early operations phase. The first section will discuss the design philosophy of Delfi-C3. To reduce operational risks, Delfi-C3 followed the KISS principle and is designed to be Single-Point-of-Failure- free. A balance is made between adoption of professional space engineering customs and standards on one hand and the limitations of small satellites, financial budgets and limited human resources on the other hand. The second section of the paper discusses the project planning and management of Delfi-C3. Addressed are reasonable timelines for the development of a nano-satellite, how to deal with a launch slip and the occasional conflicts between the interest of the students and the interest of the project. The third section of the paper will present the results of the early operations of Delfi-C3. Discussed are the performance of the payloads, the bus and the ground network of the satellite. Finally, an early statement of the mission success will be given.

  10. Preliminary Results from the PrimEx-II experiment at Jefferson Lab

    Energy Technology Data Exchange (ETDEWEB)

    Gasparian, Ashot [NCA& T, Greensboro, NC; Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)

    2016-06-01

    Properties of the neutral pion, as the lightest hadron in Nature, are most sensitive to the basic symmetries and their partial breaking effects in the theory of the strong interaction (QCD). In particular, the po →gg decay width is primarily defined by the spontaneous chiral symmetry breaking effect (chiral anomaly) in QCD. The next order corrections to the anomaly have been shown to be small and are known to a 1% precision level. The PrimEx Collaboration at JLab has developed and performed two Primakoff type experiments to measure the po →gg decay width with a similar precision. The published result from the PrimEx-I experiment, G(p0 →gg ) = 7.82±0.14 (stat.)±0.17 (syst.) eV, was a factor of two more precise than the average value quoted in PDG-2010 [1]. The second experiment was performed in 2010 with a goal of 1.4% total uncertainty to address the next-to-leading-order theory calculations. The preliminary results from the PrimEx-II experiment are presented and discussed in this note.

  11. Biological image construction by using Raman radiation and Pca: preliminary results

    Energy Technology Data Exchange (ETDEWEB)

    Martinez E, J. C. [IPN, Unidad Profesional Interdisciplinaria de Ingenieria, Campus Guanajuato, Av. Mineral de Valenciana 200, Col. Fracc. Industrial Puerto Interior, 36275 Silao, Guanajuato (Mexico); Cordova F, T. [Universidad de Guanajuato, DIC, Departamento de Ingenieria Fisica, Loma del Bosque No. 103, Col. Lomas del Campestre, 37150 Leon, Guanajuato (Mexico); Hugo R, V., E-mail: jcmartineze@ipn.mx [Universidad de Guadalajara, Centro Universitario de Tonala, Morelos No. 180, 69584 Tonala, Jalisco (Mexico)

    2015-10-15

    Full text: In the last years, the Raman spectroscopy (Rs) technique has had some applications in the study and analysis of biological samples, due to it is able to detect concentrations or presence of certain organic and inorganic compounds of medical interest. In this work, raw data were obtained through measurements in selected points on a square regions in order to detect specific organic / inorganic compounds on biological samples. Gold nano stars samples were prepared and coated with membrane markers (CD 10+ and CD 19+) and diluted in leukemic B lymphocytes. Each data block was evaluated independently by the method of principal component analysis (Pca) in order to find representative dimensionless values (Cp) for each Raman spectrum in a specific coordinate. Each Cp was normalized in a range of 0-255 in order to generate a representative image of 8 bits of the region under study. Data acquisition was performed with Raman microscopy system Renishaw in Via in the range of 550 to 1700 cm-1 with a 785 nm laser source, with a power of 17 m W and 15 s of exposure time were used for each spectrum. In preliminary results could detect the presence of molecular markers CD 10+ and CD 19+ with gold nano stars and discrimination between both markers. The results suggest conducting studies with specific concentrations organic and inorganic materials. (Author)

  12. Impact of climate changes on management plans for the St. Francois and Aylmer reservoirs : preliminary results

    International Nuclear Information System (INIS)

    Turcotte, R.; Fortin, L.G.; Pugin, S.; Cyr, J.F.; Picard, F.; Poirier, C.; Lacombe, P.

    2004-01-01

    Dams used for flood control, water supply, recreational activities and hydroelectricity in the province of Quebec are managed by the Centre d'Expertise Hydrique du Quebec (CEHQ). This paper addressed the issue of global warming and the changes that may occur in the hydrological regime within the next decades in response to predicted changes in climate. As a result of the changes in hydrological regime, there is a risk of losing the equilibrium between various objectives, identifiable through water management plans. The CEHQ is conducting a pilot study for the Saint-Francois and Aylmer reservoirs in order to develop a method to evaluate the adaptability of current management plans to climate change. The project is based on potential climate change scenarios as well as on deterministic and distributed hydrological models. Daily time steps are used to evaluate the hydrological impacts of climate change. CEHQ has developed a model that simulates the use of current management plans. The model makes it possible to evaluate and compare the occurrences where stream flows and water levels exceed critical values. The effectiveness of the management plans in both current and climate change scenarios can thereby be evaluated. Preliminary results suggest a possible increase in flood risk and fewer low water level occurrences. 18 refs., 4 tabs., 12 figs

  13. Development of a treatment planning system for BNCT based on positron emission tomography data: preliminary results

    Science.gov (United States)

    Cerullo, N.; Daquino, G. G.; Muzi, L.; Esposito, J.

    2004-01-01

    Present standard treatment planning (TP) for glioblastoma multiforme (GBM - a kind of brain tumor), used in all boron neutron capture therapy (BNCT) trials, requires the construction (based on CT and/or MRI images) of a 3D model of the patient head, in which several regions, corresponding to different anatomical structures, are identified. The model is then employed by a computer code to simulate radiation transport in human tissues. The assumption is always made that considering a single value of boron concentration for each specific region will not lead to significant errors in dose computation. The concentration values are estimated "indirectly", on the basis of previous experience and blood sample analysis. This paper describes an original approach, with the introduction of data on the in vivo boron distribution, acquired by a positron emission tomography (PET) scan after labeling the BPA (borono-phenylalanine) with the positron emitter 18F. The feasibility of this approach was first tested with good results using the code CARONTE. Now a complete TPS is under development. The main features of the first version of this code are described and the results of a preliminary study are presented. Significant differences in dose computation arise when the two different approaches ("standard" and "PET-based") are applied to the TP of the same GBM case.

  14. Bioinformatics analysis of the gene expression profile of hepatocellular carcinoma: preliminary results

    Directory of Open Access Journals (Sweden)

    Jia Li

    2016-03-01

    Full Text Available Aim of the study : To analyse the expression profile of hepatocellular carcinoma compared with normal liver by using bioinformatics methods. Material and methods : In this study, we analysed the microarray expression data of HCC and adjacent normal liver samples from the Gene Expression Omnibus (GEO database to screen for differentially expressed genes. Then, functional analyses were performed using GenCLiP analysis, Gene Ontology categories, and aberrant pathway identification. In addition, we used the CMap database to identify small molecules that can induce HCC. Results : Overall, 2721 differentially expressed genes (DEGs were identified. We found 180 metastasis-related genes and constructed co-occurrence networks. Several significant pathways, including the transforming growth factor β (TGF-β signalling pathway, were identified as closely related to these DEGs. Some candidate small molecules (such as betahistine were identified that might provide a basis for developing HCC treatments in the future. Conclusions : Although we functionally analysed the differences in the gene expression profiles of HCC and normal liver tissues, our study is essentially preliminary, and it may be premature to apply our results to clinical trials. Further research and experimental testing are required in future studies.

  15. 1995 Integrated Monitoring Study: Fog measurements in the Northern San Joaquin Valley - preliminary results

    Energy Technology Data Exchange (ETDEWEB)

    Collett, J. Jr.; Bator, A.; Sherman, D.E. [Colorado State Univ., Fort Collins, CO (United States)] [and others

    1996-12-31

    Vertical gradients in fog chemistry and physics were measured from a 430 m television broadcast tower in the northern San Joaquin Valley near Walnut Grove, California. Fog was collected on the ground and at two elevations on the tower using Caltech Active Strand Cloudwater Collectors Version 2 (CASCC2). Work was conducted as part of the 1995 Integrated Monitoring Study (IMS95). Results will be used to evaluate the need to make measurements aloft in future regional studies of fog processing of atmospheric particles and for testing whether vertically resolved fog models provide realistic simulations of fog physics and chemistry above the ground. Two fog/low cloud events were sampled during the tower study. Preliminary results show concentrations of major species in the fogwater typically decreasing with altitude, while liquid water contents increase. Fogwater loadings of major species, the total amount of a species in the aqueous phase per unit air volume, were observed to increase with altitude. Major species concentrations were typically quite stable at a given elevation, while significant decreases were observed over time in liquid water content. Fogwater concentrations of soluble hydroperoxides were highest near the surface and increased with time after sunrise and were observed to coexist in the high pH fog with S(IV). Time lapse video footage of the top of the fog/cloud layer revealed a very dynamic interface, suggesting entrainment of material from the clear air into the fog/cloud may be significant. 12 refs., 7 figs.

  16. Palliation of Postoperative Gastrointestinal Anastomotic Malignant Strictures with Flexible Covered Metallic Stents: Preliminary Results

    International Nuclear Information System (INIS)

    Lee, Jeong-Min; Han, Young Min; Lee, Sang Yong; Kim, Chong Soo; Yang, Doo Hyun; Lee, Seung Ok

    2001-01-01

    Purpose: To evaluate the efficacy of the placement of covered metallic stents for palliation of gastrointestinal anastomotic strictures secondary to recurrent gastric cancer.Methods: Under fluoroscopic guidance, placement of one or two self-expandable covered metallic stents was attempted perorally in 11 patents (aged 48-76 years) with anastomotic stenoses due to recurrent gastric malignancies. The strictures involved both the afferent and efferent loops in three patients. All patients had poor peroral food intake with severe nausea and vomiting after ingestion. The technical and clinical success was evaluated.Results: Placement of the covered stent was technically successful in 13 of 15 (87%) attempts in ten patients. After the procedure, 9 of 11 (82%) patients overall were able to ingest at least a liquid diet and had markedly decreased incidence of vomiting. During the follow-up of 2-31 weeks (mean 8.5 weeks) there were no major complications.Conclusion: These preliminary results suggest that flexible, covered stents may provide effective palliation of malignant anastomotic stricture secondary to recurrent gastric cancer

  17. Fixation of the midclavicular fractures with the titanium elastic nails in adults – preliminary results

    Directory of Open Access Journals (Sweden)

    Matej Drobnič

    2005-06-01

    Full Text Available Background: Elastic intramedullary fixation is an established operative treatment for fractures in childhood, which is only exceptionally used in adults. A modified intramedullary fixation of midclavicular fractures in adults with titanium elastic nails is presented.Methods: The group was comprised of five adult patients with shortened midclavicular fractures. The prior conservative treatment had been ineffective in three cases, whereas poor functional outcome was expected in the other two, as a result of fracture shortening or instability. According to the new technique titanium elastic nails were first placed into the intramedullar channel of the distal fragment through the fracture, using a mini-open exposure. The nails were advanced retrogradely into the proximal fragment to achieve a stable fixation. The initial post-operative rehabilitation included pendulary exercises in a sling. Active exercises in the range of pain allowance were introduced after the operative wounds had been healed.Results: All fractures were consolidated in the physiological position. The patients were capable of painless movements with the shoulder on the operated side in the full range of motion after six weeks. One transitory complication in the form of skin and subcutaneous decubitus over the protruded nail tip was noted without an influence on the end result.Conclusions: The preliminary results in a limited number of patients showed efficient consolidation of the midclavicular fractures in adults treated with intramedullar titanium elastic nails. The functional results and low invasivity of the procedure support its further use in treatment of midclavicular fractures, which fail to heal conservatively, or which are expected to result in poor functional or cosmetic outcome.

  18. Doses in pediatric patients undergoing chest and abdomen CT examinations. Preliminary results

    International Nuclear Information System (INIS)

    Jornada, Tiago S.; Silva, Teogenes A. da

    2011-01-01

    Computed tomography (CT) is a non-invasive method of image production that imparts significant doses to a patient, it is expected that pediatric CT examinations will increase the risk of induced cancer in children. In this study the effective doses in a five year-old child submitted to chest or abdomen CT scans were assessed for comparison purposes. The CTEXPO computed program was used with data from routine protocols of a 0 to 13 year-old children in two public hospitals in Belo Horizonte. Hospital A used a Siemens Dual-Slice unit with 80 kV, 41 mA and pitch 2 for chest or abdomen; hospital B used a Multislice GE unit with 120 kV, 45 mA and pitch 1 for chest and 120 kV, 55 mA. and pitch 1 for abdomen. Results of effective doses in a five year-old child were 1.7 and 1.0 mSv in hospital A and 9.1 and 7.2 mSv in hospital B, for chest and abdomen, respectively. Results were compared to the reference effective doses of 7.2 and 5.0 mSv for chest and abdomen respectively that were derived from the air kerma length product values given in ICRP publication 87. Results of hospital A showed that low dose exposures also can be achieved in CT scans of children. Results showed that even a hospital with a modern facility (hospital B) can provided doses higher than reference values if protocols are not adjusted for children. Preliminary results suggested that there is a room for optimizing children exposure submitted to CT scans. (author)

  19. Epigenetic perturbations in the pathogenesis of mustard toxicity; hypothesis and preliminary results

    International Nuclear Information System (INIS)

    Korkmaz, A.; Yaren, H.; Kunak, I.; Uysal, B.; Kurt, B.; Topal, T.

    2009-01-01

    The pathogenesis of sulfur mustard (SM) toxicity is not fully understood, although it is related to reactive oxygen and nitrogen species, oxidative stress, DNA damage, poly (ADP-ribose) polymerase activation within the affected cell. We, therefore, made an attempt whether epigenetic aberrations may contribute to pathogenesis of SM poisoning in rats' lung. A total of 40 male SD rats were divided into 4 groups. Group 1 served as control and given 2 ml saline, three groups received single dose of mechlorethamine (MEC) (3.5 mg/kg subcutaneously) with the same time intervals. Group 2 received MEC only; group 3 received histone deacetylase (HDAC) inhibitor (Trichostatine A) (1 mg/kg) and group 4 received DNA methyl transferase (DNMT) inhibitor (5-Azacytidine) (0.02 mg/kg), intraperitoneally. MEC injection resulted in severe lung toxicity with strong interstitial and alveolar edema, hemorrhage, emphysematous changes as well as mild inflammatory cell infiltration and septal thickening. In group 3, the HDAC inhibitor significantly reduced interstitial and alveolar edema, hemorrhage and inflammatory cell infiltration. On the other hand, we have observed severe lung damage by using DNMT inhibitor (group 4). In HDAC inhibitor group, the results were close to sham group. In DNMT inhibitor group, however, lungs were worse than MEC group results. These preliminary results revealed that, SM itself and/or its intracellular metabolites may perturb the epigenetic environment of the affected cell in lung tissue. Hypothetically, MEC may cause HDAC induction leading to a variety of gene silencing. Trichostatine A can reduce the active enzyme level and can reactivate the already silenced genes. Further studies are needed to clarify the involvement of epigenetic perturbations in the pathogenesis of mustard toxicity.(author)

  20. Medial patellofemoral ligament and medial patellotibial ligament reconstruction in children: preliminary results

    Directory of Open Access Journals (Sweden)

    David Sadigursky

    Full Text Available ABSTRACT OBJECTIVE: The aim of this study was to evaluate the reconstruction of the medial patellofemoral ligament associated with the medial patellotibial ligament in skeletally immature patients. METHOD: This is a case series study in patients with patellar instability with open physis. In total, seven patients were evaluated: four males and three females were operated using the proposed technique. Patients with open physis who had more than two episodes of recurring patellar dislocation were included. No patients underwent additional procedures. The distance from the anterior tibial tuberosity to the trochlea grove (TT-TG was measured in all patients. On physical examination, the inverted J-sign, the apprehension sign, and the knee range of motion parameters were used in the pre- and post-operative period. In addition, the Kujala and Lysholm scores were applied before and 12 months after surgery. The results were analyzed with the Wilcoxon test. RESULTS: The mean age of the patients was 11.28 in both genders. Comparing the data of the pre- and post-operative period, the inverted J-sign was present in six patients (85.7% vs. absent in one (14.3%. The apprehension sign was absent in cases in the postoperative period; the range of motion was 117.85 ± 8.09 vs. 148.57 ± 3.77. The Kujala score was 42.57 ± 8.9 vs. 88.57 ± 5.09 and the Lysholm scores were classified as excellent or good in 28.6% and 71.4%, respectively. CONCLUSION: The combined reconstruction of the medial patellofemoral ligament combined with the medial patellotibial ligament in skeletally immature patients with predisposing factors, presents satisfactory results without episodes of recurrence or residual subluxation; according to these preliminary results, it should be considered as a treatment option.

  1. Anti-CD antibody microarray for human leukocyte morphology examination allows analyzing rare cell populations and suggesting preliminary diagnosis in leukemia.

    Science.gov (United States)

    Khvastunova, Alina N; Kuznetsova, Sofya A; Al-Radi, Liubov S; Vylegzhanina, Alexandra V; Zakirova, Anna O; Fedyanina, Olga S; Filatov, Alexander V; Vorobjev, Ivan A; Ataullakhanov, Fazly

    2015-07-27

    We describe a method for leukocyte sorting by a microarray of anti-cluster-of-differentiation (anti-CD) antibodies and for preparation of the bound cells for morphological or cytochemical examination. The procedure results in a "sorted" smear with cells positive for certain surface antigens localised in predefined areas. The morphology and cytochemistry of the microarray-captured normal and neoplastic peripheral blood mononuclear cells are identical to the same characteristics in a smear. The microarray permits to determine the proportions of cells positive for the CD antigens on the microarray panel with high correlation with flow cytometry. Using the anti-CD microarray we show that normal granular lymphocytes and lymphocytes with radial segmentation of the nuclei are positive for CD3, CD8, CD16 or CD56 but not for CD4 or CD19. We also show that the described technique permits to obtain a pure leukemic cell population or to separate two leukemic cell populations on different antibody spots and to study their morphology or cytochemistry directly on the microarray. In cases of leukemias/lymphomas when circulating neoplastic cells are morphologically distinct, preliminary diagnosis can be suggested from full analysis of cell morphology, cytochemistry and their binding pattern on the microarray.

  2. Two-dimensional computer simulation of hypervelocity impact cratering: some preliminary results for Meteor Crater, Arizona

    Energy Technology Data Exchange (ETDEWEB)

    Bryan, J.B.; Burton, D.E.; Cunningham, M.E.; Lettis, L.A. Jr.

    1978-04-01

    A computational approach used for subsurface explosion cratering has been extended to hypervelocity impact cratering. Meteor (Barringer) Crater, Arizona, was selected for our first computer simulation because it was the most thoroughly studied. It is also an excellent example of a simple, bowl-shaped crater and is one of the youngest terrestrial impact craters. Shoemaker estimates that the impact occurred about 20,000 to 30,000 years ago (Roddy (1977)). Initial conditions for this calculation included a meteorite impact velocity of 15 km/s. meteorite mass of 1.57E + 08 kg, with a corresponding kinetic energy of 1.88E + 16 J (4.5 megatons). A two-dimensional Eulerian finite difference code called SOIL was used for this simulation of a cylindrical iron projectile impacting at normal incidence into a limestone target. For this initial calculation a Tillotson equation-of-state description for iron and limestone was used with no shear strength. A color movie based on this calculation was produced using computer-generated graphics. Results obtained for this preliminary calculation of the formation of Meteor Crater, Arizona, are in good agreement with Meteor Crater Measurements.

  3. Detection of thrombophlebitis with 111In-labeled anti-fibrin antibody: Preliminary results

    Energy Technology Data Exchange (ETDEWEB)

    Alavi, A.; Gupta, N.; Palevsky, H.I.; Kelley, M.A.; Jatlow, A.D.; Byar, A.A.; Berger, H.J. (Hospital of the Univ. of Pennsylvania, Philadelphia (USA))

    1990-02-01

    Deep venous thrombosis remains a major medical problem, affecting a large segment of the population and resulting in significant mortality and morbidity. Current techniques available for detecting deep venous thrombosis present limitations that may mitigate their potential benefit to the patient. Invasive techniques, such as ascending contrast venography, carry risks to the patient with regard to complications such as an allergic reaction to an iodine dye, adverse effects to renal functions, and clot formation in a normal vein. Noninvasive techniques, such as Doppler ultrasound and impedance plethysmography, evaluate only a limited segment of the venous bed. The need remains for a diagnostic technique that is safe, accurate, and widely accessible. A readily available noninvasive scintigraphic technique utilizing radiolabeled monoclonal anti-fibrin antibody may overcome some of these shortcomings. This imaging examination is quite effective in detecting clots in the lower extremities. Compared to contrast venography, {sup 111}In-labeled anti-fibrin antibody imaging appears to be as sensitive in identifying acute venous thrombosis. In addition, the preliminary data indicate that anticoagulation with heparin may interfere with adequate visualization of the clots with this technique.

  4. Two-dimensional computer simulation of hypervelocity impact cratering: some preliminary results for Meteor Crater, Arizona

    International Nuclear Information System (INIS)

    Bryan, J.B.; Burton, D.E.; Cunningham, M.E.; Lettis, L.A. Jr.

    1978-04-01

    A computational approach used for subsurface explosion cratering has been extended to hypervelocity impact cratering. Meteor (Barringer) Crater, Arizona, was selected for our first computer simulation because it was the most thoroughly studied. It is also an excellent example of a simple, bowl-shaped crater and is one of the youngest terrestrial impact craters. Shoemaker estimates that the impact occurred about 20,000 to 30,000 years ago [Roddy (1977)]. Initial conditions for this calculation included a meteorite impact velocity of 15 km/s. meteorite mass of 1.57E + 08 kg, with a corresponding kinetic energy of 1.88E + 16 J (4.5 megatons). A two-dimensional Eulerian finite difference code called SOIL was used for this simulation of a cylindrical iron projectile impacting at normal incidence into a limestone target. For this initial calculation a Tillotson equation-of-state description for iron and limestone was used with no shear strength. A color movie based on this calculation was produced using computer-generated graphics. Results obtained for this preliminary calculation of the formation of Meteor Crater, Arizona, are in good agreement with Meteor Crater Measurements

  5. Preliminary performance and operating results from the integrated dry NOx/SO2 emissions control system

    International Nuclear Information System (INIS)

    Hunt, T.; Schott, G.; Smith, R.; Muzio, L.; Jones, D.; Mali E.; Arrigoni, T.

    1993-01-01

    The Integrated Dry NO x /SO 2 Emissions Control System was installed at Public Service Company of Colorado's Arapaho 4 generating station in 1992 in cooperation with the U.S. Department of Energy (DOE) and and the Electric Power Research Institute (EPRI). This full scale 100 MWe demonstration combines low-NO x burners, overfire air, and selective noncatalytic reduction (SNCR) for NO x control and dry sorbent injection with humidification for SO 2 control. Operation and testing of the Integrated Dry NO x /SO 2 Emissions Control System began in August 1992 and will continue through mid 1994. Preliminary results of the NO x control technologies show that the original system goal of 70% NO x removal has been easily met and that NO x removals of up to 80% are possible at full load with the combustion and SNCR systems. Testing of the dry sorbent injection system with low sulfur coal began in April 1993 using a calcium-based reagent. A maximum SO 2 removal of 40% has been achieved with duct injection of commercial calcium hydroxide and humidification to a 25 degrees F approach to saturation. Sodium-based dry sorbent injection is expected to achieved up to a 70% SO 2 reduction

  6. Upper crustal structure beneath East Java from ambient noise tomography: A preliminary result

    International Nuclear Information System (INIS)

    Martha, Agustya Adi; Widiyantoro, Sri; Cummins, Phil; Saygin, Erdinc; Masturyono

    2015-01-01

    East Java has a fairly complex geological structure. Physiographically East Java can be divided into three zones, i.e. the Southern Mountains zone in the southern part, the Kendeng zone in the middle part, and the Rembang zone in the northern part. Most of the seismic hazards in this region are due to processes in the upper crust. In this study, the Ambient Noise Tomography (ANT) method is used to image the upper crustal structure beneath East Java. We have used seismic waveform data recorded by 8Meteorological, Climatological and Geophysical Agency (BMKG) stationary seismographic stations and 16 portable seismographs installed for 2 to 8 weeks. The data were processed to obtain waveforms fromnoise cross-correlation between pairs of seismographic stations. Our preliminary results indicate that the Kendeng zone, an area of low gravity anomaly, is associated with a low velocity zone. On the other hand, the southern mountain range, which has a high gravity anomaly, is related to a high velocity anomaly as shown by our tomographic images

  7. Description and preliminary test results of a detector prototype for the TUS space fluorescence observatory

    Science.gov (United States)

    Cordero, A.; Garipov, G.; Khrenov, B.; Martinez, O.; Murrieta, T.; Robledo, C.; Rodriguez, L.; Salazar, H.; Villasenor, L.

    We discuss a general scheme of the optics and electronics read out as well as preliminary test results of a detector prototype for the space fluorescence telescope TUS (FD-TUS). The mirror of this prototype is coupled to an 8 by 8 pixel camera. Each of the 64 pixels is read by one PMT of 13 mm diameter (Hamamatsu model R1463) . The optics design is a multi-hexagonal segmented telescope with focal distance of 1.5m and 2 square meter area. The optics design is optimized to have a light collection efficiency greater then 50% for all the pixel positions. The fluorescence detector is being tested at the high mountain site Sierra La Negra near Puebla City in Mexico (600g/cm2). The FD-TUS will observe EAS tracks at energies of about 1 EeV at distances 25-50km,and zenith angles greater than 45 degree with direction tracks perpendicular to the FD axis.

  8. Characterization of sediments from Voglajna and Savinja rivers – preliminary results

    Directory of Open Access Journals (Sweden)

    Stanislav Frančišković-Bilinski

    2002-12-01

    Full Text Available Preliminary mineralogical, geochemical and Mössbauer studies of six surface sediments (fraction <63 μm from Voglajna and Savinja rivers (Slovenia are reported for the first time. The location was chosen because of two reasons. One was possible pollution due to industry in Celje. Another was presumed high concentration of iron (later found 2.8 – 5.6 %, easily studied by Mössbauer spectroscopy. XRD data showed that quartz is present in all samples. Other minerals are different in different locations. Iron can be present in Fe-chlorite and in montmorillonite, found by XRD as trace minerals. Microelements were determined by ICP-MS method. Sediment of Voglajna near Štore contain the highest concentrations of S, P, Cr, Ni, Pb, Cu, Mo, Sb, W and Hg. Sediment of Savinja at Tremerje contain the highest concentrations of Zn, Cd, Ag and Au. These results indicate industrial pollution around Celje. Further characterization of Fe (II and Fe (III was performed by 57Fe Mössbauer spectroscopy at room temperature. Spectra were fitted with two and in one case with three doublets. In addition to the presence of two doublets, two magnetic sextets are present in the sediment of Voglajna at Štore, suggesting minor quantity of Fe3O4. The Fe (III / Fe (II ratio decreases downstream the Voglajna river. The work is in progress on additional sampling stations.

  9. SALMONELLA SPP. IN SEVERAL TISSUES AND PIG CARCASSES AND IN SLAUGHTERHOUSES: PRELIMINARY RESULTS

    Directory of Open Access Journals (Sweden)

    A.M. Cosseddu

    2013-02-01

    Full Text Available The aim of the present study was to evaluate the sources of direct and cross-contamination by Salmonella spp. of swine meat at slaughterhouse. The study was carried out in 4 plants of Sardinia, where pigs of different origin (Regional, Nederland, Spain, France were slaughtered. Two-hundred ninetyfour samples were examined for Salmonella spp.: samples of caecal material, tonsils and limphonodes, carcass and liver, from 67 pigs randomly selected, and 21 environmental samples were collected. A selection of strains were submitted to phenotypical identification (API ID32E and serotyping (N.R.C. for Salmonellosis. Salmonella spp. was isolated from the 21,4% of samples, both from pigs and environmental samples. The highest prevalence was observed in limphonodes samples (37,3%, whereas the lowest on the carcasses (10,4%. Eight different serotypes were detected, the more common was S. Derby (67%, followed by S. Livingstone (8% and S. Typhimurium (6,3%. The 8% of the strains were unknown serotype. Our preliminary results confirm the important role of pigs in the diffusion of Salmonella in the slaughterhouses. The recovering of unusual serotypes from liver surfaces and slaughterhouse environments, pointed out the importance of a better Good Slaughtering Practices application by the workers, in order to prevent the possibility of crosscontamination of raw meats.

  10. Trajectory planning method for reduced patient risk in image-guided neurosurgery: concept and preliminary results

    Science.gov (United States)

    Shamir, Reuben R.; Joskowicz, Leo; Antiga, Luca; Foroni, Roberto I.; Shoshan, Yigal

    2010-02-01

    We present a new preoperative planning method to quantify and help reduce the risk associated with needle and tool insertion trajectories in image-guided keyhole neurosurgery. The goal is to quantify the risk of a proposed straight trajectory, and/or to find the trajectory with the lowest risk to nearby brain structures based on pre-operative CT/MRI images. The method automatically computes the risk associated with a given trajectory, or finds the trajectory with the lowest risk to nearby brain structures based on preoperative image segmentation and on a risk volume map. The surgeon can revise the suggested trajectory, add a new one using interactive 3D visualization, and obtain a quantitative risk measure. The trajectory risk is evaluated based on the tool placement uncertainty, on the proximity of critical brain structures, and on a predefined table of quantitative geometric risk measures. Our preliminary results on a clinical dataset with eight targets show a significant reduction in trajectory risk and a shortening of the preoperative planning time as compared to the conventional method.

  11. Two-dimensional computer simulation of hypervelocity impact cratering: some preliminary results for Meteor Crater, Arizona

    Energy Technology Data Exchange (ETDEWEB)

    Bryan, J.B.; Burton, D.E.; Cunningham, M.E.; Lettis, L.A. Jr.

    1978-06-01

    A computational approach used for subsurface explosion cratering was extended to hypervelocity impact cratering. Meteor (Barringer) Crater, Arizona, was selected for the first computer simulation because it is one of the most thoroughly studied craters. It is also an excellent example of a simple, bowl-shaped crater and is one of the youngest terrestrial impact craters. Initial conditions for this calculation included a meteorite impact velocity of 15 km/s, meteorite mass of 1.67 x 10/sup 8/ kg, with a corresponding kinetic energy of 1.88 x 10/sup 16/ J (4.5 megatons). A two-dimensional Eulerian finite difference code called SOIL was used for this simulation of a cylindrical iron projectile impacting at normal incidence into a limestone target. For this initial calculation, a Tillotson equation-of-state description for iron and limestone was used with no shear strength. Results obtained for this preliminary calculation of the formation of Meteor Crater are in good agreement with field measurements. A color movie based on this calculation was produced using computer-generated graphics. 19 figures, 5 tables, 63 references.

  12. Preliminary results of the aerosol optical depth retrieval in Johor, Malaysia

    International Nuclear Information System (INIS)

    Lim, H Q; Lau, A M S; Kanniah, K D

    2014-01-01

    Monitoring of atmospheric aerosols over the urban area is important as tremendous amounts of pollutants are released by industrial activities and heavy traffic flow. Air quality monitoring by satellite observation provides better spatial coverage, however, detailed aerosol properties retrieval remains a challenge. This is due to the limitation of aerosol retrieval algorithm on high reflectance (bright surface) areas. The aim of this study is to retrieve aerosol optical depth over urban areas of Iskandar Malaysia; the main southern development zone in Johor state, using Moderate Resolution Imaging Spectroradiometer (MODIS) 500 m resolution data. One of the important steps is the aerosol optical depth retrieval is to characterise different types of aerosols in the study area. This information will be used to construct a Look Up Table containing the simulated aerosol reflectance and corresponding aerosol optical depth. Thus, in this study we have characterised different aerosol types in the study area using Aerosol Robotic Network (AERONET) data. These data were processed using cluster analysis and the preliminary results show that the area is consisting of coastal urban (65%), polluted urban (27.5%), dust particles (6%) and heavy pollution (1.5%) aerosols

  13. PRELIMINARY RESULTS OF EARTHQUAKE-INDUCED BUILDING DAMAGE DETECTION WITH OBJECT-BASED IMAGE CLASSIFICATION

    Directory of Open Access Journals (Sweden)

    A. Sabuncu

    2016-06-01

    Full Text Available Earthquakes are the most destructive natural disasters, which result in massive loss of life, infrastructure damages and financial losses. Earthquake-induced building damage detection is a very important step after earthquakes since earthquake-induced building damage is one of the most critical threats to cities and countries in terms of the area of damage, rate of collapsed buildings, the damage grade near the epicenters and also building damage types for all constructions. Van-Ercis (Turkey earthquake (Mw= 7.1 was occurred on October 23th, 2011; at 10:41 UTC (13:41 local time centered at 38.75 N 43.36 E that places the epicenter about 30 kilometers northern part of the city of Van. It is recorded that, 604 people died and approximately 4000 buildings collapsed or seriously damaged by the earthquake. In this study, high-resolution satellite images of Van-Ercis, acquired by Quickbird-2 (© Digital Globe Inc. after the earthquake, were used to detect the debris areas using an object-based image classification. Two different land surfaces, having homogeneous and heterogeneous land covers, were selected as case study areas. As a first step of the object-based image processing, segmentation was applied with a convenient scale parameter and homogeneity criterion parameters. As a next step, condition based classification was used. In the final step of this preliminary study, outputs were compared with streetview/ortophotos for the verification and evaluation of the classification accuracy.

  14. The TETRA-II Experiment to Observe Terrestrial Gamma Flashes at Ground Level - Preliminary Results

    Science.gov (United States)

    Cherry, M. L.; Adams, C.; Al-Nussirat, S.; Bai, S.; Banadaki, Y.; Bitzer, P. M.; Hoffmann, J.; Khosravi, E.; Legault, M.; Orang, M.; Pleshinger, D. J.; Rodriguez, R.; Smith, D.; Trepanier, J. C.; Sunda-Meya, A.; Zimmer, N.

    2017-12-01

    An upgraded version of the TGF and Energetic Thunderstorm Rooftop Array (TETRA-II) consists of an array of BGO scintillators to detect bursts of gamma rays from thunderstorms at ground level in four separate locations: the campus of Louisiana State University in Baton Rouge, Louisiana; the campus of the University of Puerto Rico at Utuado, Puerto Rico; the Centro Nacional de Metrologia de Panama (CENAMEP) in Panama City, Panama; and the Severe Weather Institute and Radar & Lightning Laboratories in Huntsville, Alabama. The original TETRA-I array of NaI scintillators at Louisiana State University detected 37 millisecond-scale bursts of gamma rays at energies 50 keV-2 MeV associated with nearby (< 8 km) thunderstorms. TETRA-II began operation in May 2016 and now has approximately an order of magnitude greater sensitivity than TETRA-I. The ability to observe ground-level Terrestrial Gamma Flashes from close to the source allows a unique analysis of the storm cells producing these events. A brief description of the TETRA-I observations, a description of TETRA-II, and preliminary results of the first events observed by TETRA-II will be presented including frequency and time history of events, spectral information, and correlation with local radar and radio data.

  15. A comparison of cupola-free perimetry with conventional perimetry: preliminary results.

    Science.gov (United States)

    Jenni, A; Hirsbrunner, H P

    1990-01-01

    In the comparison of ten normal and two pathological visual fields, excellent agreement was found between examinations made with Octopus perimeters (types 201 and 500) and a prototype version of a new cupola-free perimeter (CFPP). The examination of a single glaucomatous visual field, however, exhibited an elevated mean defect value with the prototype instrument in comparison with Octopus 201 examinations of the same visual field. Although this difference may be easily explained by long-term fluctuation effects, further investigations based on a broader empirical basis will be required. Based on the results of this preliminary work the following remarks can be made with respect to the cupola-free perimeter: provided that the zero point of the dB scale is chosen appropriately, ie, with a stimulus luminance of about 4,000 asb used as the 0 dB level, the same differential light sensitivity (DLS) values for normal visual fields can be obtained with the CFPP as with all Octopus models (201, 500, 2000). Within the limits of measurement error, the same decrease of DLS was found with the CFPP as obtained using the other perimeters for test locations (of the G1 program), ranging from the center out to an eccentricity of 30 degrees. Thus it appears that the normal values as used in the other Octopus perimeters can also be utilized in this cupola-free instrument within this range.

  16. The relationship between team climate and interprofessional collaboration: Preliminary results of a mixed methods study.

    Science.gov (United States)

    Agreli, Heloise F; Peduzzi, Marina; Bailey, Christopher

    2017-03-01

    Relational and organisational factors are key elements of interprofessional collaboration (IPC) and team climate. Few studies have explored the relationship between IPC and team climate. This article presents a study that aimed to explore IPC in primary healthcare teams and understand how the assessment of team climate may provide insights into IPC. A mixed methods study design was adopted. In Stage 1 of the study, team climate was assessed using the Team Climate Inventory with 159 professionals in 18 interprofessional teams based in São Paulo, Brazil. In Stage 2, data were collected through in-depth interviews with a sample of team members who participated in the first stage of the study. Results from Stage 1 provided an overview of factors relevant to teamwork, which in turn informed our exploration of the relationship between team climate and IPC. Preliminary findings from Stage 2 indicated that teams with a more positive team climate (in particular, greater participative safety) also reported more effective communication and mutual support. In conclusion, team climate provided insights into IPC, especially regarding aspects of communication and interaction in teams. Further research will provide a better understanding of differences and areas of overlap between team climate and IPC. It will potentially contribute for an innovative theoretical approach to explore interprofessional work in primary care settings.

  17. The Geographic Climate Information System Project (GEOCLIMA): Overview and preliminary results

    Science.gov (United States)

    Feidas, H.; Zanis, P.; Melas, D.; Vaitis, M.; Anadranistakis, E.; Symeonidis, P.; Pantelopoulos, S.

    2012-04-01

    The project GEOCLIMA aims at developing an integrated Geographic Information System (GIS) allowing the user to manage, analyze and visualize the information which is directly or indirectly related to climate and its future projections in Greece. The main components of the project are: a) collection and homogenization of climate and environmental related information, b) estimation of future climate change based on existing regional climate model (RCM) simulations as well as a supplementary high resolution (10 km x 10 km) simulation over the period 1961-2100 using RegCM3, c) compilation of an integrated uniform geographic database, and d) mapping of climate data, creation of digital thematic maps, and development of the integrated web GIS application. This paper provides an overview of the ongoing research efforts and preliminary results of the project. First, the trends in the annual and seasonal time series of precipitation and air temperature observations for all available stations in Greece are assessed. Then the set-up of the high resolution RCM simulation (10 km x 10 km) is discussed with respect to the selected convective scheme. Finally, the relationship of climatic variables with geophysical features over Greece such as altitude, location, distance from the sea, slope, aspect, distance from climatic barriers, land cover etc) is investigated, to support climate mapping. The research has been co-financed by the European Union (European Regional Development Fund) and Greek national funds through the Operational Program "Competitiveness and Entrepreneurship" of the National Strategic Reference Framework (NSRF) - Research Funding Program COOPERATION 2009.

  18. Preliminary physico-chemical results obtained on water using new data acquisition systems for deep wells

    International Nuclear Information System (INIS)

    Vinson, J.M.; Peyrus, J.C.

    1984-02-01

    Data acquisition systems recently developed in the context of research on deep storage facilities have provided with an initial set of interesting observations for the physico-chemical study of boreholes. It is possible to make correlations between the chemical compositions of water, pH and the nature of the substrate. The sampling done at Auriat with a Gerhardt-Owen probe shows the variability in the composition of water as a function of depth. The variation in calcium content, following that of pH, is particularly notable. Examination of pH measurements is of particular interest. A general gradient correlates exactly with the nature of the substrate. Whereas steel piping has a very alkaline pH, distinct pH values correspond to the two types of granite substrate. In this general gradient, series of disturbances can be seen which correspond perfectly to fracturation zones or large fractures. These most promising preliminary results lead to believe that in situ physico-chemical measurements should be continued and developed with a view to improved evaluation of the safety of deep storage facilities

  19. PRELIMINARY RESULTS OF QUALITY STUDY OF WATER FROM SMALL MICHALICE RESERVOIR ON WIDAWA RIVER

    Directory of Open Access Journals (Sweden)

    Mirosław Wiatkowski

    2014-10-01

    Full Text Available The paper presents an analysis of water quality of the small Michalice reservoir. A preliminary assessment of the reservoir water quality and its usability was made. The quality of water in the reservoir is particularly important as the main functions of the reservoir are agricultural irrigation, recreation and flood protection . The following physico-chemical parameters of the Widawa River were analyzed: NO3 -, NO2 -, NH4 +, PO4 3-, COD, water temperature, pH and electrolytic conductivity. Main descriptive statistical data were presented for the analyzed water quality indicators. The research results indicate that the reservoir contributed to the reduced concentrations of the following water quality indicators: nitrates, nitrites, phosphates, electrolytic conductivity and COD (in the outflowing water – St.3 in comparison to the water flowing into the reservoir – St.1. In the water flowing out of the Psurów reservoir higher values of the remaining indicators were observed if compared with the inflowing water. It was stated, as well, that analised waters are not vulnerable to nitrogen compounds pollution coming from the agricultural sources and are eutrophic. For purpose obtaining of the précised information about condition of Michalice reservoir water purity as well as river Widawa it becomes to continue the hydrological monitoring and water quality studies.

  20. Gamma radiation measurement in select sand samples from Camburi beach - Vitoria, Espirito Santo, Brazil: preliminary results

    Energy Technology Data Exchange (ETDEWEB)

    Barros, Livia F.; Pecequilo, Brigitte R.S.; Aquino, Reginaldo R., E-mail: lfbarros@ipen.b, E-mail: brigitte@ipen.b, E-mail: raquino@ipen.b [Instituto de Pesquisas Energeticas e Nucleares (IPEN/CNEN-SP), Sao Paulo, SP (Brazil)

    2011-07-01

    The variation of natural radioactivity along the surface of the beach sands of Camburi, located in Vitoria, capital of Espirito Santo, southeastern Brazil, was determined from the contents of {sup 226}Ra, {sup 232}Th and {sup 40}K. Eleven collecting points was selected along all the 6 km extension of the Camburi beach. Sand samples collected from all established points on January 2011 were dried and sealed in standard 100 mL polyethylene flasks and measured by high resolution gamma spectrometry after a 4 weeks ingrowth period, in order to allow the secular equilibrium in the {sup 238}U and {sup 232}Th series. The {sup 226}Ra concentration was determined from the weighted average concentrations of {sup 214}Pb and {sup 214}Bi. The {sup 232}Th concentration was determined from the weighted average concentrations of {sup 228}Ac, {sup 212}Pb and {sup 212}Bi and the {sup 40}K from its single gamma transition. Preliminary results show activity concentrations varying from 5 Bq.kg{sup -1} to {sup 222} Bq.kg{sup -1} for {sup 226}Ra and from 14 Bq.kg{sup -1} to 1074 Bq.kg{sup -'}1 for {sup 232}Th, both with the highest values for Camburi South and Central. For {sup 40}K, the activity concentrations ranged from 14 Bq.kg{sup -1} to 179 Bq.kg{sup -1} and the highest values were obtained for Camburi South. (author)

  1. Evaluating outcomes of palliative photodynamic therapy: instrument development and preliminary results

    Science.gov (United States)

    Goodell, Teresa T.; Bargo, Paulo R.; Jacques, Steven L.

    2002-06-01

    Background: Subjective measures are considered the gold standard in palliative care evaluation, but no studies have evaluated palliative photodynamic therapy (PDT) subjectively. If PDT is to be accepted as a palliative therapy for later-stage obstructing esophageal and lung cancer, evidence of its effectiveness and acceptability to patients must be made known. Study Design/Materials and Methods: This ongoing study's major aim is to evaluate subjective outcomes of PDT in patients with obstructing esophageal and lung cancer. Existing measures of health status, dysphagia and performance status were supplemented with an instrument developed to evaluate PDT symptom relief and side effect burden, the PDT Side Effects Survey (PSES). Results: PDT patients treated with porfimer sodium (Photofrin) and 630-nm light experienced reduced dysphagia grade and stable performance status for at least one month after PDT (N= 10-17), but these effects did not necessarily persist at three months. Fatigue, appetite and quality of life may be the most burdensome issues for these patients. Conclusions: Preliminary data suggest that the PSES is an acceptable and valid tool for measuring subjective outcomes of palliative PDT. This study is the first attempt to systematically evaluate subjective outcomes of palliative PDT. Multi-center outcomes research is needed to draw generalizable conclusions that will establish PDT's effectiveness in actual clinical practice and enhance the wider adoption of PDT as a cancer symptom relief modality.

  2. Data Analysis and Preliminary Results of the Proton Charge Radius Experiment (PRad) at JLab

    Science.gov (United States)

    Xiong, Weizhi; Peng, Chao; PRad Collaboration

    2017-09-01

    In order to investigate the proton radius puzzle, the PRad experiment (E12-11-106) was performed in 2016 in Hall B at Jefferson Lab, with 1.1 and 2.2 GeV unpolarized electron beam on a windowless H2 gas flow target. The experiment aims to extract the electric form factor of the proton in an unprecedented low squared momentum transfer region (Q2 = 2 ×10-4 - 0.06(GeV / c) 2), with a sub-percent precision. The PRad experiment utilizes a non-magnetic calorimetric method with a large acceptance and high resolution calorimeter (HyCal), and two large area, high spatial resolution Gas Electron Multiplier (GEM) detectors. To control the systematic uncertainties, the absolute e - p elastic scattering cross section is normalized to that of the well-known M øller scattering process, which is measured simultaneously within similar kinematics and experimental acceptances. Both the luminosity and the energy independent part of the detector acceptance and efficiency are canceled out in the ratio. In this talk, we will discuss details of the data analysis and present the preliminary physics results from the 2.2 GeV data. This work is supported in part by the U.S. Department of Energy under Contract No. DE-FG02-03ER41231, NSF MRI award PHY-1229153, Thomas Jefferson National Accelerator Facility and Duke University.

  3. Preliminary results of the aerosol optical depth retrieval in Johor, Malaysia

    Science.gov (United States)

    Lim, H. Q.; Kanniah, K. D.; Lau, A. M. S.

    2014-02-01

    Monitoring of atmospheric aerosols over the urban area is important as tremendous amounts of pollutants are released by industrial activities and heavy traffic flow. Air quality monitoring by satellite observation provides better spatial coverage, however, detailed aerosol properties retrieval remains a challenge. This is due to the limitation of aerosol retrieval algorithm on high reflectance (bright surface) areas. The aim of this study is to retrieve aerosol optical depth over urban areas of Iskandar Malaysia; the main southern development zone in Johor state, using Moderate Resolution Imaging Spectroradiometer (MODIS) 500 m resolution data. One of the important steps is the aerosol optical depth retrieval is to characterise different types of aerosols in the study area. This information will be used to construct a Look Up Table containing the simulated aerosol reflectance and corresponding aerosol optical depth. Thus, in this study we have characterised different aerosol types in the study area using Aerosol Robotic Network (AERONET) data. These data were processed using cluster analysis and the preliminary results show that the area is consisting of coastal urban (65%), polluted urban (27.5%), dust particles (6%) and heavy pollution (1.5%) aerosols.

  4. Cognitive Vocal Program applied to individuals with signals presbylarynx: preliminary results.

    Science.gov (United States)

    Nemr, Katia; Souza, Glaucia Verena Sampaio de; Simões-Zenari, Marcia; Tsuji, Domingos Hiroshi; Hachiya, Adriana; Cordeiro, Gislaine Ferro; Nunes, Guilherme Pecoraro; Dajer, María Eugenia

    2014-01-01

    To propose and verify the feasibility of a vocal program intervention in patients with presbylarynx signs with or without vocal complaints. Among 20 elder participants of the current research, 3 female patients with median age of 67 years were chosen for the pilot study. Laryngological examination, vocal recording with CAPE-V (Consensus Auditory-Perceptual Evaluation of Voice) protocol, and Screening Protocol of Risk of Dysphonia (SPRD) were conducted before and after the program intervention. They joined the Cognitive Vocal Program for presbyphonia based on the genetic epistemology by Jean Piaget associated with vocal techniques based on scientific literature. This program is structured with six sessions and each one of them is focused in different aspects of vocal production. After the program intervention, some aspects such as loudness, coordination between breathing and speaking, accuracy in articulatory movements, jitter, and harmonics-to-noise ratio improved with parameters within the expected range for the age group. Three female participants were observed for better vocal quality, higher fundamental frequency, and better maximum phonation time. In two cases, tension related to loudness elevation and better scores on SPRD was observed. Using by high-speed laryngeal image, we also observed reduction of presbylarynx signs, and remarkable improvement in glottis closure competence and mucosal wave movement of the patients with and without vocal complaints. The preliminary results suggest encouraging prospects for the proposal with improvement in the aspects analyzed. This program was well designed and did not require any further adjustments.

  5. Developmentof improved basal friction parameterizations using ISSM: Preliminary results for Greenland's Jakobshavn Ice Stream

    Science.gov (United States)

    Halkides, D. J.; Larour, E.; Morlighem, M.; Seroussi, H.

    2012-04-01

    In ice flow models, the basal friction law links velocity at the ice-bed interface to drag at the glacial base. Accurate ice stream simulation relies on parameterization of this relationship, but basal drag cannot be measured observationally, remaining a key unknown in ice flow modeling. The Ice Sheet System Model (ISSM), developed at the California Institute of Technology's Jet Propulsion Laboratory (JPL) in collaboration with UC Irvine, is a state of the art, finite-element model capable of simulating 3-D transient ice flow on an anisotropic mesh and incorporating data assimilation through use of inverse control methods. As part of a larger development effort to improve simulation/understanding of ice sheet evolution in Greenland and Antarctica, we present preliminary results from ISSM for the sensitivity of Greenland's Jakobshavn ice stream to a range of friction law parameterizations, with model-data comparisons for the surface flow field. This work has implications for ice sheet model development and understanding of ice sheet slippage events. This work was performed at JPL under a contract with the National Aeronautics and Space Administration's Modeling, Analysis and Prediction (MAP) Program.

  6. 242Pu: preliminary evaluation with consideration of 240Pu, and some sensitivity results

    International Nuclear Information System (INIS)

    Jary, J.; Lagrange, C.; Philis, C.

    1979-01-01

    A preliminary evaluation of 242 Pu nuclear data is presented for the neutron energy range from 10 keV to 20 MeV. The fission cross section is based upon recent experimental measurements on 242 Pu. The remaining cross sections were calculated by use of various nuclear models with parameters obtained mainly by both fits on 240 Pu experimental data and general reflexions on the actinides. Particular care was taken of the direct interactions. The laws of secondary neutron energy spectra and the average number of neutrons produced per fission were evaluated. The results were put in ENDF/B-IV format and combined with the low-energy region of ENDF/B-IV MAT = 1161 data to make complete the evaluation over the whole energy range 10 -5 eV to 20 MeV. Finally, the sensitivities of some of these nuclear data available for reactor calculations are given in terms of the variation of the calculated critical masses. 21 figures, 4 tables

  7. Treatment of reflex sympathetic dystrophy in children using a prostacyclin analog: preliminary results.

    Science.gov (United States)

    Petje, G; Radler, C; Aigner, N; Walik, N; Kriegs Au, G; Grill, F

    2005-04-01

    The aim of our study was to evaluate Iloprost, a prostacyclin analog, for treatment of reflex sympathetic dystrophy in children not responsive to conservative treatment. Seven female patients with a mean age of 9 years (range, 6-11 years) diagnosed with reflex sympathetic dystrophy Stage II were treated with infusions of Iloprost given on three consecutive days. Additionally, all patients had physiotherapy and were offered psychologic consultation. One day after the final infusion, all seven patients were free of pain and achieved full weightbearing. The side effects of Iloprost were headache in all patients and vomiting in two patients. Two patients experienced relapse--one patient at 3 months and the other patient 5 months after primary treatment--but both were free of pain by 5 days after a second series of infusions. During a mean followup of 30 months all patients remained asymptomatic. Our preliminary results suggest that temporary sympathicolysis with Iloprost, physiotherapy, and psychologic counseling is a safe and an effective treatment of reflex sympathetic dystrophy in children with a long history of symptoms or in those who do not respond to conservative treatment. Therapeutic study, Level IV (case series--no, or historical control group). See the Instructions for Authors for a complete description of levels of evidence.

  8. Integrated Bio-ISRU and Life Support Systems at the Lunar Outpost: Concept and Preliminary Results

    Science.gov (United States)

    Brown, I. I.; Garrison, D. H.; Allen, C. C.; Pickering, K.; Sarkisova, S. A.; Galindo, C., Jr.; Pan, D.; Foraker, E.; Mckay, D. S.

    2009-01-01

    We continue the development of our concept of a biotechnological loop for in-situ resource extraction along with propellant and food production at a future lunar outpost, based on the cultivation of litholytic cyanobacteria (LCB) with lunar regolith (LR) in a geobioreactor energized by sunlight. Our preliminary studies have shown that phototropic cultivation of LCB with simulants of LR in a low-mineralized medium supplemented with CO2 leads to rock dissolution (bioweathering) with the resulting accumulation of Fe, Mg and Al in cyanobacterial cells and in the medium. LCB cultivated with LR simulants produces more O2 than the same organisms cultivated in a high-mineralized medium. The loss of rock mass after bioweathering with LCB suggests the release of O from regolith. Further studies of chemical pathways of released O are required. The bioweathering process is limited by the availability of CO2, N, and P. Since lunar regolith is mainly composed of O, Si, Ca, Al and Mg, we propose to use organic waste to supply a geobioreactor with C, N and P. The recycling of organic waste, including urine, through a geobioreactor will allow for efficient element extraction as well as oxygen and biomass production. The most critical conclusion is that a biological life support system tied to a geobioreactor might be more efficient for supporting an extraterrestrial outpost than a closed environmental system.

  9. Searching for moving objects in HSC-SSP: Pipeline and preliminary results

    Science.gov (United States)

    Chen, Ying-Tung; Lin, Hsing-Wen; Alexandersen, Mike; Lehner, Matthew J.; Wang, Shiang-Yu; Wang, Jen-Hung; Yoshida, Fumi; Komiyama, Yutaka; Miyazaki, Satoshi

    2018-01-01

    The Hyper Suprime-Cam Subaru Strategic Program (HSC-SSP) is currently the deepest wide-field survey in progress. The 8.2 m aperture of the Subaru telescope is very powerful in detecting faint/small moving objects, including near-Earth objects, asteroids, centaurs and Tran-Neptunian objects (TNOs). However, the cadence and dithering pattern of the HSC-SSP are not designed for detecting moving objects, making it difficult to do so systematically. In this paper, we introduce a new pipeline for detecting moving objects (specifically TNOs) in a non-dedicated survey. The HSC-SSP catalogs are sliced into HEALPix partitions. Then, the stationary detections and false positives are removed with a machine-learning algorithm to produce a list of moving object candidates. An orbit linking algorithm and visual inspections are executed to generate the final list of detected TNOs. The preliminary results of a search for TNOs using this new pipeline on data from the first HSC-SSP data release (2014 March to 2015 November) present 231 TNO/Centaurs candidates. The bright candidates with Hr 5 show that the best-fitting slope of a single power law to absolute magnitude distribution is 0.77. The g - r color distribution of hot HSC-SSP TNOs indicates a bluer peak at g - r = 0.9, which is consistent with the bluer peak of the bimodal color distribution in literature.

  10. Work-nonwork interference: Preliminary results on the psychometric properties of a new instrument

    Directory of Open Access Journals (Sweden)

    Eileen Koekemoer

    2010-11-01

    Research purpose: The objectives of this study were to investigate the internal validity (construct, discriminant and convergent validity, reliability and external validity (relationship with theoretically relevant variables, including job characteristics, home characteristics, burnout, ill health and life satisfaction of the instrument. Motivation for the study: Work-family interaction is a key topic receiving significant research attention. In order to facilitate comparison across work-family studies, the use of psychometrically sound instruments is of great importance. Research design, approach and method: A cross-sectional survey design was used for the target population of married employees with children working at a tertiary institution in the North West province (n = 366. In addition to the new instrument, job characteristics, home characteristics, burnout, ill health and life satisfaction were measured. Main findings: The results provided evidence for construct, discriminant and convergent validity, reliability and significant relations with external variables. Practical/managerial implications: The new instrument can be used by researchers and managers as a test under development to investigate the interference between work and different nonwork roles (i.e. parental role, spousal role, work role, domestic role and specific relations with antecedents (e.g. job/home characteristics and well-being (e.g. burnout, ill health and life satisfaction. Contribution/value-add: This study provides preliminary information on the psychometric properties of a new instrument that measures the interference between work and nonwork.

  11. Two-dimensional computer simulation of hypervelocity impact cratering: some preliminary results for Meteor Crater, Arizona

    International Nuclear Information System (INIS)

    Bryan, J.B.; Burton, D.E.; Cunningham, M.E.; Lettis, L.A. Jr.

    1978-06-01

    A computational approach used for subsurface explosion cratering was extended to hypervelocity impact cratering. Meteor (Barringer) Crater, Arizona, was selected for the first computer simulation because it is one of the most thoroughly studied craters. It is also an excellent example of a simple, bowl-shaped crater and is one of the youngest terrestrial impact craters. Initial conditions for this calculation included a meteorite impact velocity of 15 km/s, meteorite mass of 1.67 x 10 8 kg, with a corresponding kinetic energy of 1.88 x 10 16 J (4.5 megatons). A two-dimensional Eulerian finite difference code called SOIL was used for this simulation of a cylindrical iron projectile impacting at normal incidence into a limestone target. For this initial calculation, a Tillotson equation-of-state description for iron and limestone was used with no shear strength. Results obtained for this preliminary calculation of the formation of Meteor Crater are in good agreement with field measurements. A color movie based on this calculation was produced using computer-generated graphics. 19 figures, 5 tables, 63 references

  12. Preliminary results of the analysis of the administered activities in diagnostic studies of nuclear medicine

    International Nuclear Information System (INIS)

    Lopez Bejerano, G.; Sed, L.J.

    2001-01-01

    The worldwide use of Nuclear Medicine diagnostic procedures and the tendency to its increment, infers an important exposure of the population to ionising radiation; it has motivated that the IAEA in the International Basic Safety Standards (BSS), emits recommendations for the establishment of guidance levels of activities administered to the patients in diagnostic procedures. Taking into account the above-mentioned and that in Cuba there exist 20 departments of Nuclear Medicine that in the majority possess equipment with more than 20 years of operation, which influences directly the medical exposure. A survey was designed and applied in 10 of these departments. The survey evaluates the compliance with the BSS requirements, and specifically, the activities administered to the patients in Nuclear Medicine diagnostic procedures are analysed. In the present work the obtained preliminary results of the statistical analysis carried out on the activity values used in Nuclear Medicine departments are presented, and comparisons made for a proposal of guidance levels for the national practice, which is compared with those recommended internationally. (author)

  13. A preliminary result of the second np charge symmetry breaking experiment at TRIUMF

    International Nuclear Information System (INIS)

    Zhao, J.; Abegg, R.; Berdoz, A.R.; Birchall, J.; Campbell, J.R.; Davis, C.A.; Delheij, P.P.J.; Gan, L.; Green, P.W.; Greeniaus, L.G.; Healey, D.C.; Helmer, R.; Kolb, N.; Korkmaz, E.a.; Lee, L.; Levy, C.D.P.; Li, J.; Miller, C.A.; Opper, A.K.; Page, S.A.; Postma, H.; Ramsay, W.D.; Soukup, J.; Stinson, G.M.; van Oers, W.T.H.; Zelenski, A.N.

    1995-01-01

    TRIUMF experiment 369, a measurement of charge symmetry breaking in np elastic scattering at 350 MeV, has completed data taking. Scattering asymmetries were measured with a polarized (unpolarized) neutron beam incident on an unpolarized (polarized) frozen spin target. Coincident scattered neutrons and recoil protons were detected by a mirror symmetric detection system in the center of mass angle range from 50 degree--90 degree. A preliminary result for the difference of the zero-crossing angles, where analyzing powers cross zero, is Δθ cm =0.48 degree ±0.08 degree(stat.)±0.08 degree(syst.) based on fits over the angle range 55.8 degree ≤θ cm ≤85.4 degree. The difference of the analyzing powers ΔA≡A n -A p , where the subscripts denote polarized nucleons, was deduced with dA/dθ cm =-1.47x10 -2 deg -1 from phase shift analyses to be [71±12(stat.)±12(syst.)]x10 -4 . It is expected that when all data are analyzed a statistical accuracy of about 7x10 -4 in ΔA will be achieved. copyright 1995 American Institute of Physics

  14. Effect of corrosive marine atmosphere on construction materials in Tanzania: Exposure sites and preliminary results

    International Nuclear Information System (INIS)

    Mmari, A.G.; Uiso, C.B.S.; Makundi, I.N.; Potgieter-Vermaak, S.S.; Potgieter, J.H.; Van Grieken, R.

    2007-01-01

    Air pollution studies in Africa are limited and the influence of ambient air quality on buildings and constructions have not been investigated in the larger part of Sub-Saharan Africa. The increasing burden of emission from industry, traffic and coal power plants on ambient air pollution in Sub-Saharan Africa necessitated reviewing previous and current studies. In South Africa a 20-year exposure program, focusing on the effect of ambient exposure on various metals and alloys, showed that the amount of rainfall, relative humidity, atmospheric pollution, wind speed, solar radiation and structural design are some of the factors controlling atmospheric corrosion. Tanzania, being among the Sub-Saharan African countries and partly bordered by Indian ocean, the main source of marine atmosphere, experiences corrosive degradation on metal roofing and cementitious materials. This paper describes the exposure site set-up and will report on some preliminary results of air quality and its relation with the meteorological conditions, as well as surface changes observed, for the year one of exposure. These will thereafter be compared to the completed European and Asian studies, as reported by CLRTAP and RAPIDC respectively. (author)

  15. Experimental Estimation for Beat-Wave Current Generation in an Unmagnetized Plasma and Preliminary Results

    Science.gov (United States)

    Liu, Fei; Horton, Robert; Hwang, David; Zhu, Ben; Evans, Russell

    2009-11-01

    Beat-wave current generation experiment in a high density compact torus (CT) is being conducted on CTIX using CO2 lasers. Tunability of the CO2 lasers provides many options for the wave-particle interaction experiment at a variety of plasma densities with plasma frequency in THz range. For example strong lines such as 9R(12) and 9R(30) could be chosen for an easily obtainable density of 1.28x10^15cm-3. After restoration, two Lumonics CO2 lasers are expected to produce approximately 100MW output power in a 50ns pulse. The amount of energy transfer from laser to plasma is determined by the laser power intensity, and by the CT density scale length [1]. The desired power density can be achieved by designing a suitable optical focusing system. In addition, the CT density can be matched to the beat-wave frequency by appropriately selecting the plasma operating conditions and timing. Extensive testing of the Marx banks and pre-ionization boards was done under a variety of operating conditions. Other preliminary results and plans for the wave-particle interaction experiment will also be reported. [1] A. N. Kaufman, B. I. Cohen, PRL, 30 1306 (1973)

  16. Cernavoda NPP impact study on terrestrial and aquatic biota. Preliminary results

    International Nuclear Information System (INIS)

    Bobric, Elena; Bucur, Cristina; Popescu, Ion; Simionov, Vasile; Titescu, Gheorghe; Varlam, Carmen

    2010-01-01

    Recently, the awareness of the vulnerability of the environment has increased and the need to protect it against industrial pollutants has been recognized. The concept of sustainable development, requires new and developing international policies for environmental protection. See 'Protection of the environment from the effects of ionizing radiation' IAEA-TECDOC-1091, International Atomic Energy Agency, Vienna. As it is recommended in 'Cernavoda Unit No. 2 NPP Environmental Impact Assessment CES-03702-IAD-006', it is Cernavoda NPP responsibility to conduct an Ecological Risk Assessment study, mainly to assess the impact of nuclear power plant operation on terrestrial and aquatic biota. Long records from normal operation of Cernavoda Unit 1, wind pattern, meteorological conditions, and source terms data were used to evaluate areas of interest for environmental impact, conducting to a circle of 20 km radius around mentioned nuclear objective. The screening campaign established tritium level (because Cernavoda NPP is a CANDU type reactor, and tritium is the most important radioisotope evacuated in the environment) in air, water, soil and vegetation, focusing the interest area on particular ecosystem. Using these primary data it was evaluated which are the monitored ecological receptors and which are the measurement endpoints.This paper presents the Ecological Risk Assessment at Cernavoda NPP technical requirements, and the preliminary results of evaluating criteria for representative ecosystem components at Cernavoda NPP. (authors)

  17. 1995 Integrated Monitoring Study: Fog measurements in the Southern San Joaquin Valley - preliminary results

    Energy Technology Data Exchange (ETDEWEB)

    Collett, J. Jr.; Bator, A.; Sherman, D.E. [Colorado State Univ., Fort Collins, CO (United States)] [and others

    1996-12-31

    Fogs were sampled at three ground-based stations in the southern portion of California`s San Joaquin Valley as part of the winter component of the 1995 Integrated Monitoring Study (IMS95). The three sampling sites included two urban locations (Bakersfield and Fresno) and one rural location (near the Kern Wildlife Refuge). Both bulk and drop size-fractionated samples were collected at each site. Several fog events were sampled, with three periods of extensive fog coverage that included all three sampling sites. Results of preliminary data analysis are presented. Fog collected at the sites was generally quite basic. Most bulk fog samples had pH values above 6 reflecting strong inputs from ammonia. Occasional strong sulfur plumes at Bakersfield, however, tended to lower the fog pH. Aside from these periods, nitrate was generally present at much higher concentrations in the fog than sulfate. Decreases in fogwater loadings of major species over the course of one extended fog episode at Fresno suggest significant deposition was occurring to the surface, consistent with observations of substantial droplet fluxes to exposed surfaces during that period. 16 refs., 7 figs., 1 tab.

  18. Preliminary Results of 4-Dimensional Radiation Belt Simulation With the VERB Code

    Science.gov (United States)

    Subbotin, D.; Shprits, Y.

    2012-12-01

    Highly energetic electrons in the Earth's radiation belts are hazardous for satellite equipment. The dynamics of the radiation belt electrons can be described by the Fokker-Plank equation in terms of the radial distance, energy, and equatorial pitch-angle combined with magnetospheric convection model, which provides low energy electron seed population for Earth's radiation belts and is important for understanding of the radiation belts storm time and quite time variations. To better understand the global magnetospheric dynamics we present preliminary results of the combined convective-diffusive 4-dimentional simulations produced with 4-D Versatile Electron Radiation Belt (VERB) code. The simulations include radial diffusion due to ULF waves, energy, and pitch angle scattering due to day- and night-side chorus waves at high and low latitudes, plasmaspheric hiss waves, losses to magnetopause and atmosphere. Radial and azimuthal bounce-averaged electron drifts due to the influence of electric and magnetic fields are calculated to provide realistic low-energy electrons seed population during the simulation.

  19. Preliminary Results from the Triple Fission-Ejecta Correlations Trial (TRIFECTA) at ORNL

    Science.gov (United States)

    Peters, William; Smith, M. S.; Galindo-Uribarri, A.; Temanson, E.; Smith, K.; Paulauskas, S. V.; Thornsberry, C.; Jones, K. L.; Grzywacz, R.; Cizewski, J. A.

    2017-09-01

    Despite fission having been studied for almost 80 years, there is a shortage of data on the correlations of multiple fission products needed to benchmark advanced theoretical models of fission. A pioneering experiment underway at ORNL, the Triple Fission-Ejecta Correlations Trial (TRIFECTA), involves the measurement of energy and angular correlations between prompt 252Cf fission neutrons and gamma rays with respect to one fission fragment in time-coincidence. The mass of one fragment is determined, with 4 amu precision, by using 2 micro-channel plate timing detectors and a silicon total-energy detector. Time-coincident data from auxiliary detectors are also recorded: 6 NaI detectors to measure gamma-ray multiplicity, 1 HPGe detector to measure the high-resolution gamma-ray spectrum, and an array of 28 VANDLE modules to measure the neutron spectrum and multiplicity. For the first time, correlations between coincident fragment - gamma - neutron fission products can be studied, as a function of fragment mass. Utilizing certain unique gamma-ray transitions recorded by the HPGe detector, we were able to determine the neutron energy and angular correlations of specific fission fragments. Preliminary results on neutron - neutron angular correlations, gamma-ray vs. neutron multiplicity, and other correlations will be presented, along with plans for future improvements. Work supported in part by the Laboratory Directed Research and Development Program of ORNL, managed by UT-Battelle, LLC, for the U.S. Department of Energy. Done...processed 708 records...16:18:14

  20. Measuring conceptual health knowledge in the context of oral health literacy: preliminary results.

    Science.gov (United States)

    Macek, Mark D; Haynes, Don; Wells, William; Bauer-Leffler, Simon; Cotten, P Ann; Parker, Ruth M

    2010-01-01

    Health literacy encompasses several abilities including word recognition, reading comprehension, communication skills, and conceptual knowledge. To date, conceptual knowledge has not been included in oral health literacy research. This study assesses the validity and reliability of a new instrument and describes conceptual oral health knowledge among a sample of low-income adults. One hundred Baltimore adults were administered the Rapid Estimate of Adult Literacy in Medicine (REALM), Short Test of Functional Health Literacy in Adults (Short-TOFHLA), and a new survey of conceptual oral health knowledge. Respondents were also asked about sociodemographics, dental health, and utilization. Psychometric analysis was used to identify a subset of oral health knowledge questions from the new survey instrument. The resulting Comprehensive Measure of Oral Health Knowledge (CMOHK) was categorized into three levels of knowledge (poor, fair, good). Nearly one-third of Baltimore adults exhibited the lowest level. CMOHK scores were significantly associated with age, education level, and word recognition (REALM). CMOHK scores were not associated with reading comprehension (Short-TOFHLA) or dental care visits. Instrument reliability was good (Cronbach alpha = 0.74). This preliminary study yielded a new measure of oral health conceptual knowledge, available for use in future oral health literacy studies. The author presents a conceptual framework of oral health literacy that separates health literacy into four unique components and places decision-making at the center. Future studies are needed to determine whether this framework is supported by empirical data and leads to improvements in oral health and reductions in health disparities.

  1. Synaptic Plasticity In Mammalian Gravity Sensors: Preliminary Results From SLS-2

    Science.gov (United States)

    Ross, M. D.; Hargens, Alan R. (Technical Monitor)

    1996-01-01

    Sensory conflict is the prevalent theoretical explanation for space adaptation syndrome. This ultrastructural study tests the hypothesis that peripheral gravity sensors (maculae) play a role. Results were obtained from the medial part of utricular maculae of adult rats exposed to microgravity for 14 days, and from controls. Means and statistical significance of synapse counts were calculated using SUPERANOVA(Trademark) and Scheffe's procedure for post-hoc comparisons. Preliminary findings are from 2 sets of 100 serial sections for each dataset. Synapses were doubled numerically in type II hair cells of utricular maculae collected on day 13 inflight compared to controls (11.4 +/- 7.1 vs. 5.3 +/- 3.8; p synaptic number declined rapidly postflight and became comparable to means of controls. Synapses also increased numerically in type I cells inflight (2.4 +/- 1.6 vs. 1.7 +/- 1.0; p synaptic plasticity into the adult stage. Macular plasticity has clinical implications for balance disorders of peripheral origin.

  2. Preliminary results of simultaneous radiochemotherapy with paclitaxel for urinary bladder cancer

    International Nuclear Information System (INIS)

    Dunst, J.; Weigel, C.; Becker, A.; Heynemann, H.

    1999-01-01

    Background: Paclitaxel (Taxol) has been shown to be effective in metastatic bladder cancer as single agent and in combination with other cytotoxic drugs. Its efficacy seems to be comparable to cisplatin. We have used paclitaxel as alternative to cisplatin in selected patients with simultaneous radiochemotherapy. The objective of this articie is to summarize the preliminary results with regard to feasibility and toxicity. Patients and Methods: From 10/97 through 10/98 7 patients with locally advanced or recurrent urothelial bladder cancer were treated with radiotherapy and simultaneous paclitaxel ± cisplatin. All patients had macroscopic irresectable residual tumor after transurethral surgery or cystectomy. Paclitaxel was given twice weekly in a daily dosage of 25 through 35 mg/m 2 as 1-hour-infusion. Cisplatin was given in a dosage of 25 mg/m 2 daily on days 1 to 5. Results: All patients completed the scheduled therapy regimen. The acute toxicity consisted mainly of enteritis (Grade I to II CTC). As severe toxicity, 1 severe skin reaction in the groins (Grade III) after 20 Gy and 1 Grade-III enteritis were noted. Both patients with severe complications recovered within 4 weeks after treatment. Hematological toxicity was mild to moderate in all cases. Conclusions: This report suggests that paclitaxel is a promising agent for simultaneous radiochemotherapy protocols. The clinical value remains to be better defined especially the question whether paclitaxel may improve the results if used as alternative to standard cisplatin. At the moment paclitaxel offers at least an attractive alternative to cisplatin in patients with impaired renal function. (orig.) [de

  3. Prenatal diagnosis of Wolf-Hirschhorn syndrome: Ultrasonography and molecular karyotyping results.

    Science.gov (United States)

    Zhen, Li; Fan, Shu-Shu; Huang, Lv-Yin; Pan, Min; Han, Jin; Yang, Xin; Li, Dong-Zhi

    2018-03-31

    To present the experience on prenatal diagnosis of Wolf-Hirschhorn syndrome (WHS) to further delineate the fetal presentation of this syndrome. This was a retrospective analysis of ten pregnancies with fetal WHS identified by chromosomal microarray (CMA). Clinical data were reviewed for these cases, including maternal demographics, indications for invasive testing, sonographic findings, CMA results and pregnancy outcomes. Three cases were diagnosed at the first trimester because of an increased NT or cystic hygroma. The remaining seven cases were identified at late gestation for abnormal ultrasound findings. CMA revealed 4p deletions to be terminal in all of the ten cases. Deletion sizes ranged from 2.05 to 19.02 Mb. Prenatal findings such as increased NT, severe and early onset intrauterine growth retardation, and renal dysplasia or oligohydramnios should warrant the diagnosis of WHS and invasive testing using CMA. Copyright © 2018 Elsevier B.V. All rights reserved.

  4. Cloud water interception and canopy water balance in the Hawaiian Islands: preliminary results and emerging patterns

    Science.gov (United States)

    Tseng, H.; Giambelluca, T. W.; DeLay, J. K.; Nullet, M.

    2017-12-01

    Steep climate gradients and diverse ecosystems make the Hawaiian Islands an ideal laboratory for ecohydrological experiments. Researchers are able to control physical and ecological variables, which is difficult for most environmental studies, by selecting sites along these gradients. Tropical montane forests, especially those situated in the cloud zone, are known to improve recharge and sustain baseflow. This is probably the result of frequent and persistent fog characteristic to these systems. During fog events, evapotranspiration is suppressed due to high humidity and reduced solar radiation. Moreover, cloud water interception by the forest canopy can produce fog drip and contribute significantly to the local water budget. Because the interception process is a complex interaction between the atmosphere and the vegetation, the effects of the meteorological conditions and canopy characteristics are equally important and sometimes hard to separate. This study aims to examine patterns in cloud water interception and canopy water balance across five tropical montane forest sites on three of the main islands of Hawaii. The sites cover a range of elevations between 1100- 2114 m, annual rainfall between 1155-3375 mm, and different dominant plant species with canopy heights ranging from 1.5 m to 30 m. We investigate the effect of climatic factors by comparing passive fog gauge measurements and other meteorological variables, then examine the differences in canopy water balance by comparing throughfall and stemflow measurements at these sites. While this study is ongoing, we present the first few months of field observations and the results of preliminary analyses. This study will improve understanding of how large-scale climate and vegetation factors interact to control cloud water interception and will inform ongoing watershed management. This is particularly important for oceanic islands such as Hawaii because they rely on precipitation entirely for water supply and

  5. Hand robotics rehabilitation: feasibility and preliminary results of a robotic treatment in patients with hemiparesis.

    Science.gov (United States)

    Sale, Patrizio; Lombardi, Valentina; Franceschini, Marco

    2012-01-01

    Background. No strongly clinical evidence about the use of hand robot-assisted therapy in stroke patients was demonstrated. This preliminary observer study was aimed at evaluating the efficacy of intensive robot-assisted therapy in hand function recovery, in the early phase after a stroke onset. Methods. Seven acute ischemic stroke patients at their first-ever stroke were enrolled. Treatment was performed using Amadeo robotic system (Tyromotion GmbH Graz, Austria). Each participant received, in addition to inpatients standard rehabilitative treatment, 20 sessions of robotic treatment for 4 consecutive weeks (5 days/week). Each session lasted for 40 minutes. The exercises were carried out as follows: passive modality (5 minutes), passive/plus modality (5 minutes), assisted therapy (10 minutes), and balloon (10 minutes). The following impairment and functional evaluations, Fugl-Meyer Scale (FM), Medical Research Council Scale for Muscle Strength (hand flexor and extensor muscles) (MRC), Motricity Index (MI), and modified Ashworth Scale for wrist and hand muscles (AS), were performed at the beginning (T0), after 10 sessions (T1), and at the end of the treatment (T2). The strength hand flexion and extension performed by Robot were assessed at T0 and T2. The Barthel Index and COMP (performance and satisfaction subscale) were assessed at T0 and T2. Results. Clinical improvements were found in all patients. No dropouts were recorded during the treatment and all subjects fulfilled the protocol. Evidence of a significant improvement was demonstrated by the Friedman test for the MRC (P hand motor recovery in acute stroke patients. The simplicity of the treatment, the lack of side effects, and the first positive results in acute stroke patients support the recommendations to extend the clinical trial of this treatment, in association with physiotherapy and/or occupational therapy.

  6. Hand Robotics Rehabilitation: Feasibility and Preliminary Results of a Robotic Treatment in Patients with Hemiparesis

    Directory of Open Access Journals (Sweden)

    Patrizio Sale

    2012-01-01

    Full Text Available Background. No strongly clinical evidence about the use of hand robot-assisted therapy in stroke patients was demonstrated. This preliminary observer study was aimed at evaluating the efficacy of intensive robot-assisted therapy in hand function recovery, in the early phase after a stroke onset. Methods. Seven acute ischemic stroke patients at their first-ever stroke were enrolled. Treatment was performed using Amadeo robotic system (Tyromotion GmbH Graz, Austria. Each participant received, in addition to inpatients standard rehabilitative treatment, 20 sessions of robotic treatment for 4 consecutive weeks (5 days/week. Each session lasted for 40 minutes. The exercises were carried out as follows: passive modality (5 minutes, passive/plus modality (5 minutes, assisted therapy (10 minutes, and balloon (10 minutes. The following impairment and functional evaluations, Fugl-Meyer Scale (FM, Medical Research Council Scale for Muscle Strength (hand flexor and extensor muscles (MRC, Motricity Index (MI, and modified Ashworth Scale for wrist and hand muscles (AS, were performed at the beginning (T0, after 10 sessions (T1, and at the end of the treatment (T2. The strength hand flexion and extension performed by Robot were assessed at T0 and T2. The Barthel Index and COMP (performance and satisfaction subscale were assessed at T0 and T2. Results. Clinical improvements were found in all patients. No dropouts were recorded during the treatment and all subjects fulfilled the protocol. Evidence of a significant improvement was demonstrated by the Friedman test for the MRC (P<0.0123. Evidence of an improvement was demonstrated for AS, FM, and MI. Conclusions. This original rehabilitation treatment could contribute to increase the hand motor recovery in acute stroke patients. The simplicity of the treatment, the lack of side effects, and the first positive results in acute stroke patients support the recommendations to extend the clinical trial of this

  7. Preliminary Results of BTDF Calibration of Transmissive Solar Diffusers for Remote Sensing

    Science.gov (United States)

    Georgiev, Georgi T.; Butler, James J.; Thome, Kurt; Cooksey, Catherine; Ding, Leibo

    2016-01-01

    Satellite instruments operating in the reflected solar wavelength region require accurate and precise determination of the optical properties of their diffusers used in pre-flight and post-flight calibrations. The majority of recent and current space instruments use reflective diffusers. As a result, numerous Bidirectional Reflectance Distribution Function (BRDF) calibration comparisons have been conducted between the National Institute of Standards and Technology (NIST) and other industry and university-based metrology laboratories. However, based on literature searches and communications with NIST and other laboratories, no Bidirectional Transmittance Distribution Function (BTDF) measurement comparisons have been conducted between National Measurement Laboratories (NMLs) and other metrology laboratories. On the other hand, there is a growing interest in the use of transmissive diffusers in the calibration of satellite, air-borne, and ground-based remote sensing instruments. Current remote sensing instruments employing transmissive diffusers include the Ozone Mapping and Profiler Suite instrument (OMPS) Limb instrument on the Suomi-National Polar-orbiting Partnership (S-NPP) platform,, the Geostationary Ocean Color Imager (GOCI) on the Korea Aerospace Research Institute's (KARI) Communication, Ocean, and Meteorological Satellite (COMS), the Ozone Monitoring Instrument (OMI) on NASA's Earth Observing System (EOS) Aura platform, the Tropospheric Emissions: Monitoring of Pollution (TEMPO) instrument and the Geostationary Environmental Monitoring Spectrometer (GEMS).. This ensemble of instruments requires validated BTDF measurements of their on-board transmissive diffusers from the ultraviolet through the near infrared. This paper presents the preliminary results of a BTDF comparison between the NASA Diffuser Calibration Laboratory (DCL) and NIST on quartz and thin Spectralon samples.

  8. First steps of laparoscopic surgery in Lubumbashi: problems encountered and preliminary results

    Science.gov (United States)

    Arung, Willy; Dinganga, Nathalie; Ngoie, Emmanuel; Odimba, Etienne; Detry, Olivier

    2015-01-01

    For many reasons, laparoscopic surgery has been performed worldwide. Due to logistical constraints its first steps occurred in Lubumbashi only in 2008. The aim of this presentation was to report authors’ ten-month experience of laparoscopic surgery at Lubumbashi Don Bosco Missionary Hospital (LDBMH): problems encountered and preliminary results. The study was a transsectional descriptive work with a convenient sampling. It only took in account patients with abdominal surgical condition who consented to undergo laparoscopic surgery and when logistical constraints of the procedure were found. Independent variables were patients’ demographic parameters, staff, equipments and consumable. Dependent parameters included surgical abdominal diseases, intra-operative circumstances and postoperative short term mortality and morbidity. Between 1stApril 2009 and 28th February 2010, 75 patients underwent laparoscopic surgery at the LDBMH making 1.5% of all abdominal surgical activities performed at this institution. The most performed procedure was appendicectomy for acute appendicitis (64%) followed by exploratory laparoscopy for various abdominal chronic pain (9.3%), adhesiolysis for repeated periods of subacute intestinal obstruction in previously laparotomised patients (9.3%), laparoscopic cholecystectomy for post acute cholecystitis on gall stone (5.3%) and partial colectomy for symptomatic redundant sigmoid colon (2.7%). There were 4% of conversion to laparotomy. Laparoscopic surgery consumed more time than laparotomy, mostly when dealing with appendicitis. However, postoperatively, patients did quite well. There was no death in this series. Nursing care was minimal with early discharge. These results are encouraging to pursue laparoscopic surgery with DRC Government and NGO's supports. PMID:26448805

  9. Brain connectivity study of brain tumor patients using MR-PET data: preliminary results

    Energy Technology Data Exchange (ETDEWEB)

    Mendes, Ana Carina [Institute of Biophysics and Biomedical Engineering, Faculty of Sciences of the University of Lisbon (Portugal); Ribeiro, Andre Santos [Institute of Biophysics and Biomedical Engineering, Faculty of Sciences of the University of Lisbon (Portugal); Centre for Neuropsychopharmacology, Division of Brain Sciences, Department of Medicine, Imperial College London, London (United Kingdom); Oros-Peusquens, Ana Maria; Langen, Karl Josef; Shah, Jon [Institute of Neuroscience and Medicine - 4, Forschungszentrum Juelich (Germany); Ferreira, Hugo Alexandre [Institute of Biophysics and Biomedical Engineering, Faculty of Sciences of the University of Lisbon (Portugal)

    2015-05-18

    Brain activity results from anatomical and functional connections that can be disrupted or altered due to trauma or lesion. This work presents a first approach on the study of whole-brain connectivity of brain tumor patients using the Multimodal Imaging Brain Connectivity (MIBCA) toolbox. Two patients with glioblastoma lesions located in the left hemisphere (one in the motor cortex and the other in the temporal lobe) underwent simultaneous MRI and dynamic PET scans using a 3T MRI scanner with a BrainPET insert. The following data was acquired: T1-w MPRAGE (1x1x1mm{sup 3}), DTI (dir=30, b=0,800s/mm2, 2x2x2mm{sup 3}), and dynamic 18F-FET PET. The MIBCA toolbox was used to automatically pre-process MRI-PET data and to derive imaging and connectivity metrics from the multimodal data. Computed metrics included: cortical thickness from T1-w data; mean diffusivity (MD), fractional anisotropy (FA), node degree, clustering coefficient and pairwise ROI fibre tracking (structural connectivity) from DTI data; and standardized uptake value (SUV) from PET data. For all the metrics, the differences between left and right hemispherical structures were obtained, followed by a 25% threshold (except for SUV thresholded at 15%). Data was visualized in a connectogram, and both structural connectivity and metrics were studied in regions surrounding lesions. Preliminary results showed increased SUV values in regions surrounding the tumor for both patients. Patients also showed changes in structural connectivity involving these regions and also other more spatially distant regions such as the putamen and the pallidum, including decreased number of fibers between the subcortical structures themselves and with frontal regions. These findings suggest that the presence of a tumor may alter both local and more distant structural connections. Presently, a larger patient sample is being studied along with the inclusion of a control group to test the consistency of the findings.

  10. Blau Syndrome-Associated Uveitis: Preliminary Results From an International Prospective Interventional Case Series.

    Science.gov (United States)

    Sarens, Inge L; Casteels, Ingele; Anton, Jordi; Bader-Meunier, Brigitte; Brissaud, Philippe; Chédeville, Gaelle; Cimaz, Rolando; Dick, Andrew D; Espada, Graciella; Fernandez-Martin, Jorge; Guly, Catherine M; Hachulla, Eric; Harjacek, Miroslav; Khubchandani, Raju; Mackensen, Friederike; Merino, Rosa; Modesto, Consuelo; Naranjo, Antonio; Oliveira-Knupp, Sheila; Özen, Seza; Pajot, Christine; Ramanan, Athimalaipet V; Russo, Ricardo; Susic, Gordana; Thatayatikom, Akaluck; Thomée, Caroline; Vastert, Sebastiaan; Bertin, John; Arostegui, Juan I; Rose, Carlos D; Wouters, Carine H

    2018-03-01

    Provide baseline and preliminary follow-up results in a 5-year longitudinal study of Blau syndrome. Multicenter, prospective interventional case series. Baseline data from 50 patients from 25 centers worldwide, and follow-up data for patients followed 1, 2, or 3 years at the end of study enrollment. Ophthalmic data were collected at baseline and yearly visits by means of a standardized collection form. Median age at onset of eye disease was 60 months and duration of eye disease at baseline 145 months. At baseline 38 patients (78%) had uveitis, which was bilateral in 37 (97%). Eight patients (21%) had moderate to severe visual impairment. Panuveitis was found in 38 eyes (51%), with characteristic multifocal choroidal infiltrates in 29 eyes (39%). Optic disc pallor in 9 eyes (12%) and peripapillary nodules in 9 eyes (12%) were the commonest signs of optic nerve involvement. Active anterior chamber inflammation was noted in 30 eyes (40%) at baseline and in 16 (34%), 17 (57%), and 11 (61%) eyes at 1, 2, and 3 years, respectively. Panuveitis was associated with longer disease duration. At baseline, 56 eyes (75%) were on topical corticosteroids. Twenty-six patients (68%) received a combination of systemic corticosteroids and immunomodulatory therapy. Blau uveitis is characterized by progressive panuveitis with multifocal choroiditis, resulting in severe ocular morbidity despite continuous systemic and local immunomodulatory therapy. The frequency and severity of Blau uveitis highlight the need for close ophthalmologic surveillance as well as a search for more effective therapies. Copyright © 2017 Elsevier Inc. All rights reserved.

  11. Preliminary Results from Electric Arc Furnace Off-Gas Enthalpy Modeling

    Energy Technology Data Exchange (ETDEWEB)

    Nimbalkar, Sachin U [ORNL; Thekdi, Arvind [E3M Inc; Keiser, James R [ORNL; Storey, John Morse [ORNL

    2015-01-01

    This article describes electric arc furnace (EAF) off-gas enthalpy models developed at Oak Ridge National Laboratory (ORNL) to calculate overall heat availability (sensible and chemical enthalpy) and recoverable heat values (steam or power generation potential) for existing EAF operations and to test ORNL s new EAF waste heat recovery (WHR) concepts. ORNL s new EAF WHR concepts are: Regenerative Drop-out Box System and Fluidized Bed System. The two EAF off-gas enthalpy models described in this paper are: 1.Overall Waste Heat Recovery Model that calculates total heat availability in off-gases of existing EAF operations 2.Regenerative Drop-out Box System Model in which hot EAF off-gases alternately pass through one of two refractory heat sinks that store heat and then transfer it to another gaseous medium These models calculate the sensible and chemical enthalpy of EAF off-gases based on the off-gas chemical composition, temperature, and mass flow rate during tap to tap time, and variations in those parameters in terms of actual values over time. The models provide heat transfer analysis for the aforementioned concepts to confirm the overall system and major component sizing (preliminary) to assess the practicality of the systems. Real-time EAF off-gas composition (e.g., CO, CO2, H2, and H2O), volume flow, and temperature data from one EAF operation was used to test the validity and accuracy of the modeling work. The EAF off-gas data was used to calculate the sensible and chemical enthalpy of the EAF off-gases to generate steam and power. The article provides detailed results from the modeling work that are important to the success of ORNL s EAF WHR project. The EAF WHR project aims to develop and test new concepts and materials that allow cost-effective recovery of sensible and chemical heat from high-temperature gases discharged from EAFs.

  12. Percutaneous Irreversible Electroporation Lung Ablation: Preliminary Results in a Porcine Model

    International Nuclear Information System (INIS)

    Deodhar, Ajita; Monette, Sébastien; Single, Gordon W.; Hamilton, William C.; Thornton, Raymond H.; Sofocleous, Constantinos T.; Maybody, Majid; Solomon, Stephen B.

    2011-01-01

    Objective: Irreversible electroporation (IRE) uses direct electrical pulses to create permanent “pores” in cell membranes to cause cell death. In contrast to conventional modalities, IRE has a nonthermal mechanism of action. Our objective was to study the histopathological and imaging features of IRE in normal swine lung. Materials and Methods: Eleven female swine were studied for hyperacute (8 h), acute (24 h), subacute (96 h), and chronic (3 week) effects of IRE ablation in lung. Paired unipolar IRE applicators were placed under computed tomography (CT) guidance. Some applicators were deliberately positioned near bronchovascular structures. IRE pulse delivery was synchronized with the cardiac rhythm only when ablation was performed within 2 cm of the heart. Contrast-enhanced CT scan was performed immediately before and after IRE and at 1 and 3 weeks after IRE ablation. Representative tissue was stained with hematoxylin and eosin for histopathology. Results: Twenty-five ablations were created: ten hyperacute, four acute, and three subacute ablations showed alveolar edema and necrosis with necrosis of bronchial, bronchiolar, and vascular epithelium. Bronchovascular architecture was maintained. Chronic ablations showed bronchiolitis obliterans and alveolar interstitial fibrosis. Immediate post-procedure CT images showed linear or patchy density along the applicator tract. At 1 week, there was consolidation that resolved partially or completely by 3 weeks. Pneumothorax requiring chest tube developed in two animals; no significant cardiac arrhythmias were noted. Conclusion: Our preliminary porcine study demonstrates the nonthermal and extracellular matrix sparing mechanism of action of IRE. IRE is a potential alternative to thermal ablative modalities.

  13. Reduction of "6"8Ga-PSMA renal uptake with mannitol infusion. Preliminary results

    International Nuclear Information System (INIS)

    Matteucci, Federica; Caroli, Paola; Celli, Monica; Fantini, Lorenzo; Paganelli, Giovanni; Mezzenga, Emilio; Sarnelli, Anna; Di Iorio, Valentina; Moretti, Andrea; Galassi, Riccardo; De Giorgi, Ugo

    2017-01-01

    Urea-based prostate-specific membrane antigen (PSMA) ligands labelled with "6"8Ga or "1"7"7Lu are new tracers with great potential for theranostic approaches in prostate cancer. However, clinical studies have shown that the kidneys are one of the off-target organs along with the salivary and lacrimal glands. In the kidneys, PSMA is physiologically expressed in the apical epithelium of the proximal tubules, and mannitol acts as an osmotic diuretic in these tubules. We investigated the potential of mannitol to reduce renal uptake of "6"8Ga-PSMA. Kidney uptake (SUVmax) was calculated in nine patients undergoing "6"8Ga-PSMA PET/CT at baseline (b-PET/CT) and after intravenous infusion of 500 ml of 10% mannitol (m-PET/CT). Two different infusion schemes for mannitol were used: (1) 500 ml mannitol was infused over 40 min after "6"8Ga-PSMA administration (A-infusion) and (2) 250 ml mannitol was infused over 15 min before and again after "6"8Ga-PSMA administration (B-infusion). In patients receiving the A-infusion, mean SUV_m_a_x increased by 11.9% and 7.4% in the right and left kidney, respectively. In patients receiving the B-infusion, mean SUV_m_a_x decreased by 24.3% and 22.4% in the right and left kidney, respectively. Our preliminary findings indicate that mannitol may play a role in reducing off-target "6"8Ga-PSMA renal uptake. Administration of the osmotic diuretic should be rapid and start before "6"8Ga-PSMA injection. These results warrant dosimetric studies in patients treated with "1"7"7Lu-PSMA to find the best scheme for mannitol administration. (orig.)

  14. Preliminary results from the Arecibo Heating Experiment (HEX): HF to GNSS

    Science.gov (United States)

    Jackson-Booth, N.; Penney, R.; Bernhardt, P. A.; Martin, P. L.; Buckland, R.; Morton-Orr, T.; Nossa, E.; Buckland, R.

    2017-12-01

    The ionosphere is subject to many solar and terrestrial influences that can generate disturbances, causing degradation to modern communication and navigational systems. Whilst the disturbances are normally caused by natural phenomena such as hurricanes, earthquakes and solar storms; they can also be generated by artificially modifying the ionosphere. Artificial Ionospheric Modification (AIM) attempts to alter a small region of the ionosphere in order to perturb the RF propagation environment. This can be achieved through injecting the ionosphere with aerosols, chemicals or radio signals. The effects of any such modification can be detected through the deployment of sensors, including ground based high-frequency (HF) sounders and dual-band Global Navigation Satellite System (GNSS) receivers. HF sounders allow measurements of the bottom-side of the ionosphere. GNSS receivers offer a convenient means of obtaining information about the ionosphere, including ionospheric disturbances through changes in the derived total electron content information. The Heating EXperiment (HEX), which took place in March and May 2017, was designed to further our understanding of the phenomena caused by artificially heating a small region of the ionosphere, using the Arecibo facility in Puerto Rico. This was achieved by utilizing a HF measurement experiment spread between Texas and Trinidad and the deployment of a small scale travelling ionospheric disturbance (TID) network near the heater. The TID network comprised three GNSS receivers along baselines of approximately 4 km, located 20 km north of the heater. This paper presents preliminary results from the HEX campaign, including evidence of heating-induced disturbances enhancing propagation between Virginia and Trinidad. The implications of generated irregularities on GNSS will also be discussed.

  15. A preliminary result of the second np charge symmetry breaking experiment at TRIUMF

    Energy Technology Data Exchange (ETDEWEB)

    Zhao, J. [University of Manitoba, Winnipeg, Manitoba, R3T 2N2 (Canada); Abegg, R. [TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia, V6T 2A3 (Canada); Berdoz, A.R.; Birchall, J.; Campbell, J.R. [University of Manitoba, Winnipeg, Manitoba, R3T 2N2 (Canada); Davis, C.A.; Delheij, P.P.J. [TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia, V6T 2A3 (Canada); Gan, L. [University of Manitoba, Winnipeg, Manitoba, R3T 2N2 (Canada); Green, P.W.; Greeniaus, L.G. [University of Alberta, Edmonton, Alberta, T6G 2N5 (Canada); Healey, D.C.; Helmer, R. [TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia, V6T 2A3 (Canada); Kolb, N.; Korkmaz, E.a. [University of Alberta, Edmonton, Alberta, T6G 2N5 (Canada); Lee, L. [University of Manitoba, Winnipeg, Manitoba, R3T 2N2 (Canada); Levy, C.D.P. [TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia, V6T 2A3 (Canada); Li, J. [University of Alberta, Edmonton, Alberta, T6G 2N5 (Canada); Miller, C.A. [TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia, V6T 2A3 (Canada); Opper, A.K. [University of Alberta, Edmonton, Alberta, T6G 2N5 (Canada); Page, S.A. [University of Manitoba, Winnipeg, Manitoba, R3T 2N2 (Canada); Postma, H. [TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia, V6T 2A3 (Canada); Ramsay, W.D. [University of Manitoba, Winnipeg, Manitoba, R3T 2N2 (Canada); Soukup, J.; Stinson, G.M. [University of Alberta, Edmonton, Alberta, T6G 2N5 (Canada); van Oers, W.T.H. [University of Manitoba, Winnipeg, Manitoba, R3T 2N2 (Canada); Zelenski, A.N. [TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia, V6T 2A3 (Canada)

    1995-07-10

    TRIUMF experiment 369, a measurement of charge symmetry breaking in np elastic scattering at 350 MeV, has completed data taking. Scattering asymmetries were measured with a polarized (unpolarized) neutron beam incident on an unpolarized (polarized) frozen spin target. Coincident scattered neutrons and recoil protons were detected by a mirror symmetric detection system in the center of mass angle range from 50{degree}--90{degree}. A preliminary result for the difference of the zero-crossing angles, where analyzing powers cross zero, is {Delta}{theta}{sub cm}=0.48{degree}{plus_minus}0.08{degree}({ital stat}.){plus_minus}0.08{degree}({ital syst}.) based on fits over the angle range 55.8{degree}{le}{theta}{sub cm}{le}85.4{degree}. The difference of the analyzing powers {Delta}{ital A}{equivalent_to}{ital A}{sub {ital n}}{minus}{ital A}{sub {ital p}}, where the subscripts denote polarized nucleons, was deduced with {ital dA}/{ital d}{theta}{sub cm}={minus}1.47{times}10{sup {minus}2} deg{sup {minus}1} from phase shift analyses to be [71{plus_minus}12({ital stat}.){plus_minus}12({ital syst}.)]{times}10{sup {minus}4}. It is expected that when all data are analyzed a statistical accuracy of about 7{times}10{sup {minus}4} in {Delta}{ital A} will be achieved. {copyright} {ital 1995} {ital American} {ital Institute} {ital of} {ital Physics}.

  16. Scintigraphic test of gastric emptying and motility: preliminary results in patients with chronic gastritis

    Energy Technology Data Exchange (ETDEWEB)

    Hausmann, T. [Abt. Nuklearmedizin und Spezielle Biophysik, Medizinische Hochschule Hannover (Germany); Mueller-Schauenburg, W. [Abt. Nuklearmedizin, Univ. Tuebingen (Germany); Goeke, M. [Abt. Gastroenterologie und Hepatologie, Medizinische Hochschule Hannover (Germany); Luebeck, M. [Abt. Nuklearmedizin, Univ.-Krankenhaus Eppendorf, Hamburg (Germany); Gratz, K.F. [Abt. Nuklearmedizin und Spezielle Biophysik, Medizinische Hochschule Hannover (Germany); Meier, P. [Abt. Gastroenterologie und Hepatologie, Medizinische Hochschule Hannover (Germany); Manns, M. [Abt. Gastroenterologie und Hepatologie, Medizinische Hochschule Hannover (Germany); Hundeshagen, H. [Abt. Nuklearmedizin und Spezielle Biophysik, Medizinische Hochschule Hannover (Germany)

    1995-11-01

    To record gastric peristalsis using a conventional scintigraphic gastric emptying test the frame rate was increased to 1 frame per 3 s at 10, 30, and 50 min postprandially. The gastric contraction frequency was obtained from the first harmonic of a Fourier transform of a gastric region of interest (ROI) curve. The propagation of gastric contractions was better revealed from computed functional images of the phase and amplitude distribution as compared with the multiple scintigraphic images. The maximal count-rate changes per pixel were calculated as an estimate of the most prominent regional contractile activity of the gastric wall. Among 12 patients with chronic gastritis the group with more severe dyspeptic complaints (n = 6) had significantly higher count-rate changes per pixel when compared with the group with minor complaints (20.0, 21.1 and 14.2 vs 12.9, 12.0, and 10.4 counts/pixel X s at 10, 30, and 50 min. respectively; p < 0.05). The mean half-times of gastric emptying (61, SD 11 vs 54, SD 13 min) and the mean gastric contraction frequencies (2.99, SD 0.19; 3.09, SD 0.33; 3.07, SD 0.10 vs 3.15, SD 0.15; 3.17, SD 0.13; 3.23, SD 0.20 cycles/min at 10, 30, and 50 min, respectively) did not show significant differences between both groups. Our preliminary results agree with the hypothesis of the occurrence of more powerful, nonexpulsive gastric-wall contractions in patients with more severe dyspeptic complaints. Hence, additional quantification of gastric motility allowed a more detailed evaluation of gastric-motor-activity disorders that were for so long not accessible to conventional gastric-emptying tests. (orig.)

  17. Scintigraphic test of gastric emptying and motility: preliminary results in patients with chronic gastritis

    International Nuclear Information System (INIS)

    Hausmann, T.; Mueller-Schauenburg, W.; Goeke, M.; Luebeck, M.; Gratz, K.F.; Meier, P.; Manns, M.; Hundeshagen, H.

    1995-01-01

    To record gastric peristalsis using a conventional scintigraphic gastric emptying test the frame rate was increased to 1 frame per 3 s at 10, 30, and 50 min postprandially. The gastric contraction frequency was obtained from the first harmonic of a Fourier transform of a gastric region of interest (ROI) curve. The propagation of gastric contractions was better revealed from computed functional images of the phase and amplitude distribution as compared with the multiple scintigraphic images. The maximal count-rate changes per pixel were calculated as an estimate of the most prominent regional contractile activity of the gastric wall. Among 12 patients with chronic gastritis the group with more severe dyspeptic complaints (n = 6) had significantly higher count-rate changes per pixel when compared with the group with minor complaints (20.0, 21.1 and 14.2 vs 12.9, 12.0, and 10.4 counts/pixel X s at 10, 30, and 50 min. respectively; p < 0.05). The mean half-times of gastric emptying (61, SD 11 vs 54, SD 13 min) and the mean gastric contraction frequencies (2.99, SD 0.19; 3.09, SD 0.33; 3.07, SD 0.10 vs 3.15, SD 0.15; 3.17, SD 0.13; 3.23, SD 0.20 cycles/min at 10, 30, and 50 min, respectively) did not show significant differences between both groups. Our preliminary results agree with the hypothesis of the occurrence of more powerful, nonexpulsive gastric-wall contractions in patients with more severe dyspeptic complaints. Hence, additional quantification of gastric motility allowed a more detailed evaluation of gastric-motor-activity disorders that were for so long not accessible to conventional gastric-emptying tests. (orig.)

  18. Laparoscopic conversion of sleeve gastrectomy to Roux-en-Y gastric bypass: indications and preliminary results.

    Science.gov (United States)

    Iannelli, Antonio; Debs, Tarek; Martini, Francesco; Benichou, Benjamin; Ben Amor, Imed; Gugenheim, Jean

    Laparoscopic sleeve gastrectomy (SG) has gained popularity as a standalone procedure. However, long-term complications are reported, mainly weight loss failure and gastroesophageal reflux disease (GERD). Therefore, demand for revisional surgery is rising. The aim of this study was to report preliminary results within the 2 main indications for laparoscopic conversion of SG to Roux-en-Y gastric bypass (RYGB). University Hospital, France. Data from all patients who underwent laparoscopic conversion from SG to RYGB were retrospectively analyzed as to indications for revisional surgery, weight loss, and complications. Forty patients underwent conversion, 29 cases (72.5%) for weight loss failure and 11 cases for refractory GERD (27.5%). The mean interval from SG to RYGB was 32.6 months (range 8-113). Revisional surgery was attempted by laparoscopy in all cases, and conversion to laparotomy was necessary in 3 patients (7.5%). Mean length of follow-up was 18.6 months (range 9-60) after conversion. Follow-up rate was 100%. Mean percent total weight loss and percent excess weight loss were 34.7% and 64%, respectively, when calculated from weight before SG. Remission rate for GERD was 100%. Improvement was observed for all co-morbidities after conversion. There was no immediate postoperative mortality. The postoperative complication rate was 16.7%. According to the Clavien-Dindo classification, there were 5 grade II and 2 grade IIIa complications. Laparoscopic conversion of SG to RYGB is safe and feasible. In the short term, it appears to be effective in treating GERD and inducing significant additional weight loss and improvement of co-morbidities. Copyright © 2016 American Society for Bariatric Surgery. Published by Elsevier Inc. All rights reserved.

  19. Reduction of {sup 68}Ga-PSMA renal uptake with mannitol infusion. Preliminary results

    Energy Technology Data Exchange (ETDEWEB)

    Matteucci, Federica; Caroli, Paola; Celli, Monica; Fantini, Lorenzo; Paganelli, Giovanni [Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, Nuclear Medicine Unit, Meldola (Italy); Mezzenga, Emilio; Sarnelli, Anna [Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, Medical Physics Unit, Meldola (Italy); Di Iorio, Valentina [Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, Oncology Pharmacy, Meldola (Italy); Moretti, Andrea; Galassi, Riccardo [AUSL Romagna, Nuclear Medicine Unit, Forli (Italy); De Giorgi, Ugo [Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, Department of Medical Oncology, Meldola (Italy)

    2017-12-15

    Urea-based prostate-specific membrane antigen (PSMA) ligands labelled with {sup 68}Ga or {sup 177}Lu are new tracers with great potential for theranostic approaches in prostate cancer. However, clinical studies have shown that the kidneys are one of the off-target organs along with the salivary and lacrimal glands. In the kidneys, PSMA is physiologically expressed in the apical epithelium of the proximal tubules, and mannitol acts as an osmotic diuretic in these tubules. We investigated the potential of mannitol to reduce renal uptake of {sup 68}Ga-PSMA. Kidney uptake (SUVmax) was calculated in nine patients undergoing {sup 68}Ga-PSMA PET/CT at baseline (b-PET/CT) and after intravenous infusion of 500 ml of 10% mannitol (m-PET/CT). Two different infusion schemes for mannitol were used: (1) 500 ml mannitol was infused over 40 min after {sup 68}Ga-PSMA administration (A-infusion) and (2) 250 ml mannitol was infused over 15 min before and again after {sup 68}Ga-PSMA administration (B-infusion). In patients receiving the A-infusion, mean SUV{sub max} increased by 11.9% and 7.4% in the right and left kidney, respectively. In patients receiving the B-infusion, mean SUV{sub max} decreased by 24.3% and 22.4% in the right and left kidney, respectively. Our preliminary findings indicate that mannitol may play a role in reducing off-target {sup 68}Ga-PSMA renal uptake. Administration of the osmotic diuretic should be rapid and start before {sup 68}Ga-PSMA injection. These results warrant dosimetric studies in patients treated with {sup 177}Lu-PSMA to find the best scheme for mannitol administration. (orig.)

  20. The preliminary results: Internal seismic velocity structure imaging beneath Mount Lokon

    Energy Technology Data Exchange (ETDEWEB)

    Firmansyah, Rizky, E-mail: rizkyfirmansyah@hotmail.com [Geophysical Engineering, Faculty of Mining and Petroleum Engineering, Institut Teknologi Bandung, Bandung, 40132 (Indonesia); Nugraha, Andri Dian, E-mail: nugraha@gf.itb.ac.id [Global Geophysical Group, Faculty of Mining and Petroleum Engineering, Institut Teknologi Bandung, Bandung, 40132 (Indonesia); Kristianto, E-mail: kris@vsi.esdm.go.id [Center for Volcanology and Geological Hazard Mitigation (CVGHM), Geological Agency, Bandung, 40122 (Indonesia)

    2015-04-24

    Historical records that before the 17{sup th} century, Mount Lokon had been dormant for approximately 400 years. In the years between 1350 and 1400, eruption ever recorded in Empung, came from Mount Lokon’s central crater. Subsequently, in 1750 to 1800, Mount Lokon continued to erupt again and caused soil damage and fall victim. After 1949, Mount Lokon dramatically increased in its frequency: the eruption interval varies between 1 – 5 years, with an average interval of 3 years and a rest interval ranged from 8 – 64 years. Then, on June 26{sup th}, 2011, standby alert set by the Center for Volcanology and Geological Hazard Mitigation. Peak activity happened on July 4{sup th}, 2011 that Mount Lokon erupted continuously until August 28{sup th}, 2011. In this study, we carefully analyzed micro-earthquakes waveform and determined hypocenter location of those events. We then conducted travel time seismic tomographic inversion using SIMULPS12 method to detemine Vp, Vs and Vp/Vs ratio structures beneath Lokon volcano in order to enhance our subsurface geological structure. During the tomographic inversion, we started from 1-D seismic velocities model obtained from VELEST33 method. Our preliminary results show low Vp, low Vs, and high Vp/Vs are observed beneath Mount Lokon-Empung which are may be associated with weak zone or hot material zones. However, in this study we used few station for recording of micro-earthquake events. So, we suggest in the future tomography study, the adding of some seismometers in order to improve ray coverage in the region is profoundly justified.

  1. Black Carbon in Arctic Snow: Preliminary Results from Recent Field Measurements

    Science.gov (United States)

    Warren, S. G.; Grenfell, T. C.; Radionov, V. F.; Clarke, A. D.

    2007-12-01

    Annual snowpacks act to amplify variations in regional solar heating of the surface due to positive feedback processes associated with areal melting and precipitation. Small amounts of black carbon (BC) in the snow can reduce the albedo and modulate shortwave absorption and transmission affecting the onset of melt and heating of the snow pack. The effect of black carbon on the albedo of snow in the Arctic is estimated to be up to a few percent. The only prior survey of arctic snow was that of Clarke and Noone in 1983-84. We have begun a wide- area survey of the BC content of arctic snow in order to update and expand the 1983/84 survey. Samples of snow have been collected in mid to late spring when the entire winter snowpack was accessible. The samples have been melted and filtered, and the filters analyzed for absorptive impurities. To date, sites in Alaska, Canada, Greenland, and in the Arctic Basin have been sampled. In March and April 2007 we also carried out a field program at four sites in northwestern Russia as part of the International Polar Year. Preliminary results based on visual comparison with the standard filters indicate that the snow cover in arctic North America and the Beaufort Sea have lower BC concentrations now than 20 years ago while levels in Greenland are about the same. Background levels of BC in Russia are approximately twice those in North America consistent with modeling predictions of Flanner et al., 2007. More accurate values of absorption will be obtained by measurement of spectral transmission of the filters, which will also allow the relative contributions of BC and soil dust to be determined.

  2. Preliminary results of geologic and remote sensing studies of Rima Mozart

    International Nuclear Information System (INIS)

    Coombs, C.R.; Hawke, B.R.

    1987-01-01

    In order to better understand the processes responsible for the formation of lunar sinuous rilles, a study of Rima Mozart was conducted using a variety of geologic, photographic, and remote sensing data. The apparent source of this rille is located in a highlands unit of known composition and it is hypothesized that thermal and mechanical erosion played an important role in the formation of Rima Mozart. Excellent photographic, topographic, multispectral, and radar data exist for this rille. The preliminary results of an analysis of this data are presented. Photographic data indicates the presence of two volcanic source vents for Rima Mozart: Kathleen and Ann. It is suggested that Rima Mozart, like many other lunar sinuous rilles, was most likely formed by a combination of events. Rima Mozart does follow a pre-existing, dominant NW/SE structural trend suggesting the influence of structural features on the rille, however, the tectonic influence is not the sole source for the formation of the rille, as suggested by the presence of the two source vents and the spatter around Ann. It is suggested that the rille formation began with an explosive eruption at Kathleen which later calmed down to a pulsating, high volume, low-viscosity lava flow. The rapid effusion rate of the magma as well as its high temperature and turbid nature helped carve the sinuous rille into the fractured and structurally weak Apennine Bench Formation underneath. Similar eruptions and subsequent flows were also created at Ann and joined to the main channel by a NE-trending secondary rille

  3. Preliminary results of geologic and remote sensing studies of Rima Mozart

    Science.gov (United States)

    Coombs, C. R.; Hawke, B. R.

    1987-01-01

    In order to better understand the processes responsible for the formation of lunar sinuous rilles, a study of Rima Mozart was conducted using a variety of geologic, photographic, and remote sensing data. The apparent source of this rille is located in a highlands unit of known composition and it is hypothesized that thermal and mechanical erosion played an important role in the formation of Rima Mozart. Excellent photographic, topographic, multispectral, and radar data exist for this rille. The preliminary results of an analysis of this data are presented. Photographic data indicates the presence of two volcanic source vents for Rima Mozart: Kathleen and Ann. It is suggested that Rima Mozart, like many other lunar sinuous rilles, was most likely formed by a combination of events. Rima Mozart does follow a pre-existing, dominant NW/SE structural trend suggesting the influence of structural features on the rille, however, the tectonic influence is not the sole source for the formation of the rille, as suggested by the presence of the two source vents and the spatter around Ann. It is suggested that the rille formation began with an explosive eruption at Kathleen which later calmed down to a pulsating, high volume, low-viscosity lava flow. The rapid effusion rate of the magma as well as its high temperature and turbid nature helped carve the sinuous rille into the fractured and structurally weak Apennine Bench Formation underneath. Similar eruptions and subsequent flows were also created at Ann and joined to the main channel by a NE-trending secondary rille.

  4. Blood hemoglobin level may affect radiosensitivity--preliminary results on acutely reacting normal tissues

    International Nuclear Information System (INIS)

    Henke, Michael; Bechtold, Christine; Momm, Felix; Doerr, Wolfgang; Guttenberger, Roland

    2000-01-01

    Purpose: To evaluate the influence of blood hemoglobin concentration on the radiosensitivity of acutely reacting normal tissues. Methods and Materials: Weekly scores (EORTC/RTOG criteria) for acute reactions of skin and mucosa are available for 60 patients with cancer of the head and neck undergoing a standard conventional radiotherapy. The prognostic significance of blood hemoglobin levels on the development of acute reactions is studied by multivariate analysis (Cox Proportional Hazards Model). Further, the incidence and the time to development of these reactions is looked at in cohorts of patients with different mean blood hemoglobin concentrations during radiotherapy. Patients are therefore classified into a 'severely anemic group' (hemoglobin < 11.0 g/100 mL), and into a cohort with a blood hemoglobin value equal or above 11.0 g/100 mL. Results: Normal tissue scoring and monitoring of blood hemoglobin levels allows for a detailed analysis of possible correlations. A decrease in the mean blood hemoglobin value of 1 g/100 mL predicts a reduced risk to develop a skin reaction of Grade 2 or 3 (RR = 0.9; p = 0.08; RR = 0.8; p = 0.26, respectively) or a mucosa reaction of Grade 3 (RR = 0.8; p = 0.16), independent from the radiation dose, the treatment time and from previous surgery within the radiation volume (multivariate analysis). Likewise, patients with severe anemia develop grade 3 mucositis or dermatitis less often (0%; 13%) as compared to those with blood hemoglobin concentrations equal or above 11.0 g/100 mL (21%; 19%). Skin and mucosa reactions further tend to occur later in the course of radiation. The observations are not statistically significant and possible reasons will be discussed. Conclusions: A decreased blood hemoglobin concentration may - perhaps by an impaired tissue oxygenation - reduce the radiosensitivity of normal tissue such as skin and mucosa. However, the data is preliminary and needs further confirmation

  5. 76 FR 62761 - Stainless Steel Bar From India: Extension of Time Limit for the Preliminary Results of the 2010...

    Science.gov (United States)

    2011-10-11

    ... DEPARTMENT OF COMMERCE International Trade Administration [A-533-810] Stainless Steel Bar From India: Extension of Time Limit for the Preliminary Results of the 2010-2011 Antidumping Duty... review of the antidumping duty order on stainless steel bar from India, covering the period February 1...

  6. 75 FR 4044 - Stainless Steel Bar From Brazil: Extension of Time Limit for Preliminary Results of Antidumping...

    Science.gov (United States)

    2010-01-26

    ... DEPARTMENT OF COMMERCE International Trade Administration [A-351-825] Stainless Steel Bar From... antidumping duty order on certain stainless steel bar from Brazil for the period February 1, 2008, through... Steel Bar From Brazil: Extension of Time Limit for Preliminary Results of Antidumping Duty...

  7. 75 FR 65449 - Stainless Steel Bar From India: Extension of Time Limit for the Preliminary Results of the...

    Science.gov (United States)

    2010-10-25

    ... DEPARTMENT OF COMMERCE International Trade Administration [A-533-810] Stainless Steel Bar From India: Extension of Time Limit for the Preliminary Results of the Antidumping Duty Administrative Review... initiation of an administrative review of the antidumping duty order on stainless steel bar from India...

  8. 75 FR 78968 - Magnesium Metal From the Russian Federation: Extension of Time Limit for Preliminary Results of...

    Science.gov (United States)

    2010-12-17

    ... DEPARTMENT OF COMMERCE International Trade Administration [A-821-819] Magnesium Metal From the Russian Federation: Extension of Time Limit for Preliminary Results of Antidumping Duty Administrative... administrative review of the antidumping duty order on magnesium metal from the Russian Federation for the period...

  9. 75 FR 73042 - 1-Hydroxyethylidene-1,1-Diphosphonic Acid From India: Preliminary Results of Antidumping Duty...

    Science.gov (United States)

    2010-11-29

    ... sales were at different stages in the marketing process than the U.S. sales, we reviewed the...-Diphosphonic Acid From India: Preliminary Results of Antidumping Duty Administrative Review AGENCY: Import... Commerce (the Department) is conducting an administrative review of the antidumping duty order on 1...

  10. 76 FR 41759 - Fresh Garlic From the People's Republic of China: Extension of Time Limit for Preliminary Results...

    Science.gov (United States)

    2011-07-15

    ... DEPARTMENT OF COMMERCE International Trade Administration [A-570-831] Fresh Garlic From the People's Republic of China: Extension of Time Limit for Preliminary Results of Antidumping Duty... (``Department'') published a notice of initiation of an administrative review of fresh garlic from the People's...

  11. 75 FR 32361 - Fresh Garlic From The People's Republic of China: Extension of Time Limit for Preliminary Results...

    Science.gov (United States)

    2010-06-08

    ... DEPARTMENT OF COMMERCE International Trade Administration [A-570-831] Fresh Garlic From The People's Republic of China: Extension of Time Limit for Preliminary Results of Antidumping Duty... Commerce (``Department'') published a notice of initiation of an administrative review of fresh garlic from...

  12. Properties of ABNT 41xx and 86xx cast steel modified with niobium; evaluation methodology and experimental preliminary results

    International Nuclear Information System (INIS)

    Suzczynski, E.F.; Chatterjee, S.; Mueller, Arno

    1982-01-01

    The experimental methodology to evaluate the mechanical properties of ABNT 41xx and 86xx steels modified with NB in the as cast and heat treated conditions and the first preliminary results obtained in a laboratory scale, are presented. (Author) [pt

  13. 75 FR 34689 - Pure Magnesium From the People's Republic of China: Preliminary Results of the 2008-2009...

    Science.gov (United States)

    2010-06-18

    ... the production process: magnesium waste, cement clinker and coal tar.\\41\\ TMI requested a by-product... preliminary results, we have granted TMI a by- product offset solely for coal tar.\\43\\ \\41\\ Id. at D-13-15 and...-specific, and tax-exclusive.\\46\\ \\44\\ See Factor Valuation Memorandum. \\45\\ The import data obtained from...

  14. 78 FR 55676 - Certain Frozen Fish Fillets From the Socialist Republic of Vietnam: Preliminary Results of the...

    Science.gov (United States)

    2013-09-11

    ... accordance with section 772 of the Act. Because Vietnam is a non-market economy (``NME'') within the meaning... liquidated at the Vietnam-wide rate.\\25\\ \\25\\ For a full discussion of this practice, see Non-Market Economy... From the Socialist Republic of Vietnam: Preliminary Results of the Antidumping Duty Administrative...

  15. 76 FR 44305 - Honey From Argentina: Extension of Time Limit for Preliminary Results of Antidumping Duty New...

    Science.gov (United States)

    2011-07-25

    ... International Trade Administration Honey From Argentina: Extension of Time Limit for Preliminary Results of... initiation a new shipper review of the antidumping duty order on honey from Argentina, covering the period of December 1, 2009, through November 30, 2010, and a single exporter of Argentine honey, Villamora S.A...

  16. 77 FR 17410 - Solid Urea From the Russian Federation: Extension of Time Limit for Preliminary Results of...

    Science.gov (United States)

    2012-03-26

    ..., International Trade Administration, U.S. Department of Commerce, 14th Street and Constitution Avenue NW... Department to complete the preliminary results within 245 days after the last day of the anniversary month of an order for which a review is requested. If it is not practicable to complete the review within this...

  17. 75 FR 13495 - Saccharin from the People's Republic of China: Preliminary Results of the 2008-2009 Antidumping...

    Science.gov (United States)

    2010-03-22

    ... compositions of saccharin: (1) Sodium saccharin (American Chemical Society Chemical Abstract Service (``CAS...., Honey from the People's Republic of China: Preliminary Results and Partial Rescission of Antidumping Duty Administrative Review, 70 FR 74764, 74765 (December 16, 2005); unchanged in Honey from the People...

  18. Binocular reflexes in the first 6 months of life: preliminary results of a study of normal infants.

    Science.gov (United States)

    Coakes, R L; Clothier, C; Wilson, A

    1979-01-01

    The development of the binocular reflexes during the first 6 months of life was studied in 38 normal infants. Preliminary results indicate that the following reflex is well established by 2 months, convergence by 3 months and the corrective fusion reflex by the age of 5 months.

  19. Reflectance anisotropy measurements using a pushbroom spectrometer mounted on UAV and a laboratory goniometer – preliminary results

    NARCIS (Netherlands)

    Suomalainen, J.; Roosjen, P.; Bartholomeus, H.; Clevers, J.

    2015-01-01

    During 2014–2015 we have developed a new method to measure reflectance factor anisotropy using a pushbroom spectrometer mounted on a multicopter UAV. In this paper/presentation we describe the acquisition method and show the preliminary results of the experiment. To validate the measurements the

  20. Preliminary irradiation test results from the Yankee Atomic Electric Company reactor vessel test irradiation program

    International Nuclear Information System (INIS)

    Biemiller, E.C.; Fyfitch, S.; Campbell, C.A.

    1993-01-01

    The Yankee Atomic Electric Company test irradiation program was implemented to characterize the irradiation response of representative Yankee Rowe reactor vessel beltline plate materials and to remove uncertainties in the analysis of existing irradiation data on the Yankee Rowe reactor vessel steel. Plate materials each containing 0.24 w/o copper, but different nickel contents at 0.63 w/o and 0.19 w/o, were heat treated to simulate the Yankee vessel heat treatment (austenitized at 1800 deg F) and to simulate Regulatory Guide 1.99 database materials (austenitized at 1600 deg. F). These heat treatments produced different microstructures so the effect of microstructure on irradiation damage sensitivity could be tested. Because the nickel content of the test plates varied and the copper level was constant, the effect of nickel on irradiation embrittlement was also tested. Correlation monitor material, HSST-02, was included in the program to benchmark the Ford Nuclear Reactor (U. of Michigan Test Reactor) which had never been used for this type of irradiation program. Materials taken from plate surface locations (vs. 1/4T) were included to test whether or not the improved toughness properties of the plate surface layer, resulting from the rapid quench, is maintained after irradiation. If the improved properties are maintained, pressurized thermal shock calculations could utilize this margin. Finally, for one experiment, irradiations were conducted at two irradiation temperatures (500 deg. F and 550 deg. F) to determine the effect of irradiation temperature on embrittlement. The preliminary results of the irradiation program show an increase in T 30 shift of 69 deg. F for a decrease in irradiation temperature of 50 deg. F. The results suggest that for nickel bearing steels, the superior toughness of plate surface material is maintained after irradiation and for the copper content tested, nickel had no apparent effect on irradiation response. No apparent microstructure

  1. 75 FR 81570 - Polyethylene Terephthalate Film, Sheet, and Strip From India: Preliminary Results of Antidumping...

    Science.gov (United States)

    2010-12-28

    ... International Trade Administration Polyethylene Terephthalate Film, Sheet, and Strip From India: Preliminary..., sheet, and strip (PET film) from India in response to a request from SRF Limited (SRF). The domestic.... SUPPLEMENTARY INFORMATION: Background The Department published the antidumping duty order on PET film from India...

  2. 78 FR 4383 - Stainless Steel Bar From Brazil: Preliminary Results of Antidumping Duty Administrative Review...

    Science.gov (United States)

    2013-01-22

    ... DEPARTMENT OF COMMERCE International Trade Administration [A-351-825] Stainless Steel Bar From... steel bar (SSB) from Brazil. The period of review (POR) is February 1, 2011, through January 31, 2012... Review: Stainless Steel Bar from Brazil'' dated concurrently with this notice (``Preliminary Decision...

  3. 77 FR 73420 - Diamond Sawblades and Parts Thereof From the Republic of Korea: Preliminary Results of...

    Science.gov (United States)

    2012-12-10

    ... Industrial Co., Ltd. (``Ehwa''); Hyosung D&P Co., Ltd. (``Hyosung''); and Shinhan Diamond Industrial Co., Ltd... the Preliminary Decision Memorandum can be accessed directly on the internet at http://www.trade.gov... 23, 2011: Margin Exporter/manufacturer (percent) Ehwa Diamond Industrial Co., Ltd 12.25 Hyosung...

  4. 78 FR 34640 - Certain Lined Paper Products From the People's Republic of China: Preliminary Results and...

    Science.gov (United States)

    2013-06-10

    ... International Trade Administration Certain Lined Paper Products From the People's Republic of China: Preliminary... certain lined paper products (``CLPP'') from the People's Republic of China (``PRC''). The period of... the People's Republic of China; Notice of Antidumping Duty Orders: Certain Lined Paper Products from...

  5. A functionally optimized hot-mix asphalt wearing course : part I : preliminary results.

    Science.gov (United States)

    2009-01-01

    The purpose of this report was to highlight the preliminary findings of the design, production, placement, and early life performance of a new generation open-graded surface course (also referred to as porous friction course [PFC]) for use in Virgini...

  6. 76 FR 76374 - Honey From Argentina: Notice of Extension of Time Limit for Preliminary Results

    Science.gov (United States)

    2011-12-07

    ... International Trade Administration Honey From Argentina: Notice of Extension of Time Limit for Preliminary... respect to honey from Argentina. See Initiation of Antidumping and Countervailing Duty Administrative... order on honey from Argentina (in part). However, Nexco's request for revocation in part from the order...

  7. 76 FR 79655 - Honey From Argentina: Notice of Extension of Time Limit for Preliminary Results

    Science.gov (United States)

    2011-12-22

    ... International Trade Administration Honey From Argentina: Notice of Extension of Time Limit for Preliminary..., petitioners withdrew their request for an antidumping duty administrative review of honey from Argentina for... that ACA is no longer subject to the antidumping duty order on honey from Argentina. \\2\\ On February 24...

  8. 78 FR 38941 - Honey From the People's Republic of China: Preliminary Results and Partial Rescission of...

    Science.gov (United States)

    2013-06-28

    ... withdrawal from warehouse, for consumption, in accordance with 19 CFR 351.212(c)(2).\\3\\ \\3\\ See Preliminary... shipments of the subject merchandise entered, or withdrawn from warehouse, for consumption on or after the... Import & Export Trading 4 Anhui Honghui Import & Export Trade Co., Ltd. 5 Anhui Cereals Oils and...

  9. 77 FR 13534 - Silicon Metal From the People's Republic of China: Preliminary Results of Antidumping Duty...

    Science.gov (United States)

    2012-03-07

    ... Department identified Colombia, Indonesia, the Philippines, South Africa, Thailand and Ukraine as a non...-specific, and tax-exclusive.\\28\\ The record shows that import data from Thailand's Customs Department, as... POR, product-specific or for similar products, and tax-exclusive.\\29\\ Thus, for these preliminary...

  10. Dynamic pelvic floor MR imaging at 3 T in patients with clinical signs of urinary incontinence-preliminary results

    Energy Technology Data Exchange (ETDEWEB)

    Morakkabati-Spitz, Nuschin; Willinek, Winfried A.; Traeber, Frank; Jaeger, Ursula; Schild, Hans H. [University of Bonn, Department of Radiology, Bonn (Germany); Gieseke, Juergen [University of Bonn, Department of Radiology, Bonn (Germany); Philips Medical Systems, Best (Netherlands); Bastian, Patrick J. [University of Munich, Department of Urology, Munich (Germany); Schmitz, Bettina; Mueller, Stefan C. [University of Bonn, Department of Urology, Bonn (Germany)

    2008-11-15

    To prospectively evaluate feasibility, image quality and diagnostic accuracy of dynamic MR imaging the pelvic floor at 3.0 T in patients with urinary incontinence and to compare these results with those of MRI performed at 1.5 T. Ten patients with the diagnosis of urinary incontinence (clinical symptoms, clinical examination, pelvic ultrasound) were examined with a dynamic balanced FFE (B-FFE) sequence at 1.5 T and 3.0 T on the same day in a randomized order. Spatial (1.5 x 1.5 x 8 mm) and temporal (0.44 s) resolution at 3.0 T were comparable to the 1.5-T B-FFE sequence. Two radiologists assessed visual signal to noise (three-point scale), artefact level (five-point scale) and final MR diagnoses with regard to pelvic floor weakness (independent analysis). The diagnoses obtained at 1.5-T field strength and the results of the clinical tests served as standard of reference. In addition, ROI-based quantitative measurements were performed to assess different tissue contrasts at both field strengths. Data were analyzed for statistical differences by using the Wilcoxon's matched pairs test and the marginal homogeneity test. Visual signal to noise was rated higher at 3.0 T for all ten studies by both radiologists. With regard to artefact level, there was no statistically significant difference between the studies obtained at 3.0 T as compared to the corresponding 1.5-T studies (marginal homogeneity test: p = 0.18 for reviewer 1 and 0.41 for reviewer 2). Mean artefact level was rated minor to moderate by both reviewers for both field strengths (excellent interobserver agreement with Kendall-W value of 0.973). Except for a higher tissue contrast between fat and urethra at 1.5 T, there were no statistically significant differences between tissue contrast at 1.5 T as compared to 3.0 T (Wilcoxon's test). Final MR diagnoses regarding pelvic floor weakness did not differ between 3.0-T and 1.5-T field strength and correlated well with the results of the clinical tests

  11. The 2003 Australian Breast Health Survey: survey design and preliminary results

    Directory of Open Access Journals (Sweden)

    Favelle Simone

    2008-01-01

    Full Text Available Abstract Background The Breast Health Surveys, conducted by the National Breast Cancer Centre (NBCC in 1996 and 2003, are designed to gain insight into the knowledge, attitudes and behaviours of a nationally representative sample of Australian women on issues relevant to breast cancer. In this article, we focus on major aspects of the design and present results on respondents' knowledge about mammographic screening. Methods The 2003 BHS surveyed English-speaking Australian women aged 30–69 without a history of breast cancer using computer-assisted telephone interviewing. Questions covered the following themes: knowledge and perceptions about incidence, mortality and risk; knowledge and behaviour regarding early detection, symptoms and diagnosis; mammographic screening; treatment; and accessibility and availability of information and services. Respondents were selected using a complex sample design involving stratification. Sample weights against Australian population benchmarks were used in all statistical analyses. Means and proportions for the entire population and by age group and area of residence were calculated. Statistical tests were conducted using a level of significance of 0.01. Results Of the 3,144 respondents who consented to being interviewed, 138 (4.4% had a previous diagnosis of breast cancer and were excluded leaving 3,006 completed interviews eligible for analysis. A majority of respondents (61.1% reported ever having had a mammogram and 29.1% identified mammography as being the best way of finding breast cancer. A majority of women (85.9% had heard of the BreastScreen Australia (BSA program, the national mammographic screening program providing free biennial screening mammograms, with 94.5% believing that BSA attendance was available regardless of the presence or absence of symptoms. There have been substantial gains in women's knowledge about mammographic screening over the seven years between the two surveys. Conclusion The

  12. Experimental study of sodium droplet burning in free fall. Evaluation of preliminary test results

    International Nuclear Information System (INIS)

    Miyahara, Shinya; Ara, Kuniaki

    1998-08-01

    To study a sodium leak and combustion behavior phenomenologically and to construct the mechanistic evaluation method, an experimental series of a sodium droplet burning in free fall is under way. In this study, the accuracy of measurement technique used in the preliminary test was assessed and the modified technique was proposed for the next test series. Analytical study of the test results was also conducted to deduce dominant parameters and important measurement items which would play an important role in the droplet combustion behavior. The results and conclusions are as follows: (1) Assessment of measurement accuracy and modified technique proposed for the next test series. a) Control accuracy of sodium supply system using β-alumina solid electrolyte was sufficient for generation of objective size of single droplet. However, it is necessary to calibrate the correlation between the quantity of electric charge for sodium supply system and that of supplied sodium. b) Measurement accuracy of falling velocity using high-speed video was ±0.33 m/s at an upper part and ±0.48 m/s at a lower part of the measurement. To reduce the error, a high-speed stroboscopic method is recommended to measure the falling velocity of droplet. (2) Results of analytical study and deduced dominant parameters and important measurement items. a) The falling behavior of a burning droplet was described solving the equation of free falling motion for a rigid sphere. In the case of higher falling height, it is necessary to study the burning effects on the falling behavior. b) The mass burned of a falling droplet was calculated using the combustion model according to 'D 2 ' law during the full burning phase. It is necessary to study the dominant chemical reaction in the burning flame because the mass burned depends on the composition of the reaction products. c) The mass burned was calculated using surface oxidation model for preignition phase together with above model. However, it is

  13. Wastewater use in algae production for generation of renewable resources: a review and preliminary results

    Science.gov (United States)

    2013-01-01

    Microalgae feedstock production can be integrated with wastewater and industrial sources of carbon dioxide. This study reviews the literature on algae grown on wastewater and includes a preliminary analysis of algal production based on anaerobic digestion sludge centrate from the Howard F. Curren Advanced Wastewater Treatment Plant (HFC AWTP) in Tampa, Florida and secondary effluent from the City of Lakeland wastewater treatment facilities in Lakeland, Florida. It was demonstrated that a mixed culture of wild algae species could successfully be grown on wastewater nutrients and potentially scaled to commercial production. Algae have demonstrated the ability to naturally colonize low-nutrient effluent water in a wetland treatment system utilized by the City of Lakeland. The results from these experiments show that the algae grown in high strength wastewater from the HFC AWTP are light-limited when cultivated indoor since more than 50% of the outdoor illumination is attenuated in the greenhouse. An analysis was performed to determine the mass of algae that can be supported by the wastewater nutrients (mainly nitrogen and phosphorous) available from the two Florida cities. The study was guided by the growth and productivity data obtained for algal growth in the photobioreactors in operation at the University of South Florida. In the analysis, nutrients and light are assumed to be limited, while CO2 is abundantly available. There is some limitation on land, especially since the HFC AWTP is located at the Port of Tampa. The temperature range in Tampa is assumed to be suitable for algal growth year round. Assuming that the numerous technical challenges to achieving commercial-scale algal production can be met, the results presented suggest that an excess of 71 metric tons per hectare per year of algal biomass can be produced. Two energy production options were considered; liquid biofuels from feedstock with high lipid content, and biogas generation from anaerobic

  14. Effect of adipose tissue processing procedures in culture result: a study preliminary

    Directory of Open Access Journals (Sweden)

    Jeanne A. Pawitan

    2011-02-01

    Full Text Available Background: There are various methods of processing adipose tissue before culture, depending on the adipose tissue samples. The aim of this study is to compare several modifications of culturing and sub-culturing procedures of adipose tissue to fit the condition in our laboratory.Method: This is a descriptive study that was done in the Immunology and Endocrinology Integrated Laboratory, University of Indonesia, from  October 2009 to April 2010. Three adipose tissue processing procedures, various amount of seeding and two subculture methods were compared in term of cell yield and time needed. In the first procedure, collagenase-1 digestion was done in 30minutes, cell seeding were 24,000 and 36,000 per flask; in the second procedure, collagenase-1 digestion was done in 60minutes, cell seeding were 24,000, 48,000, and 72,000 per flask; and in the third procedure, the adipose tissue remnants from the first  procedure were again digested for another 45 minutes, cell seeding were 74,000, and 148,000 per flask. Difference in subculture methods were the presence or absence of washing step.Result: Procedure 1 yielded the lowest amount of cell, and after culture, the cells grew very slow, and was contaminated before harvest of primary culture. Procedure-2 and -3 succeeded to yield primary cultures. Some of the cultures were contaminated, so that further subculture was not  applicable, and only one tissue processing procedure (procedure 2: 60 minute collagenase-1 digestion, without lysis buffer, cell seeding 48,000 and 72,000 could complete the three subcultures. Though some of the procedures could not be completed, final result could be concluded.Conclusion: In this preliminary study, 60 minute colagenase-1 digestion with intermittent shaking every 5 minutes and cell seeding around 50,000 or more, followed by subculture method without washing step gave the best result. (Med J Indones 2011; 20:15-9Keywords: collagenase-1, primary culture, subculture

  15. Sedimentology and Rock Magnetism of Bailey River Peat Cores, Sudbury Area: Preliminary Results

    Science.gov (United States)

    Yurtseven, A.; Cioppa, M. T.; Dean, K.

    2009-05-01

    Magnetic measurements on peat can reveal atmospheric anthropogenic contamination. Two cores were collected from a marsh surrounding the Bailey River, 10 km north of Sudbury, Ontario, using a Russian peat borer. The BR1 core (1.4 m) was collected right at the river's edge, whereas the BR2 core (2.5 m) was collected about 50 m away from the river's edge, close to the edge of the marsh and near the forest. Significant sedimentological variation between the two cores was observed: core BR1 had several centimeter to decimeter scale fine to coarse grey sand layers at 0.14 m, 0.46 m and 0.87 m between thicker organic-rich (peat) zones, whereas core BR2 had only one 5 cm sand-rich layer at 0.94 m within the organic-rich material. The cores were subsampled at 2.5 cm intervals for laboratory magnetic analysis. Volume susceptibility was measured using a Bartington MS2B meter, and mass-specific susceptibility was then calculated. In core BR1, the sand layers had relatively higher susceptibility (13 x 10-8 m3/kg) , while the organic rich layers had very low susceptibility (0 - 2 x 10-8 m3/kg). In core BR2, which had little sand, the susceptibility variation was dominated by higher values near-surface (10 x 10-8 m3/kg), and very low susceptibility (0.3 x 10-8 m3/kg) below 0.3 m depth. Since the lithology in this core did not vary substantially, susceptibility variations may be controlled by anthropogenic deposition in the near-surface during the peak mining and smelting decades. These preliminary results suggest that any anthropogenic signal in core BR1 appears to be masked by the sedimentological variation. On pilot results from eight samples in core BR1, saturation isothermal remanence acquisition showed 95% saturation by 200 mT, and the S-ratios (0.3T/0.9T) were above 0.93, suggesting that magnetite is the major magnetization carrier. In core BR2, six out of eight samples showed similar results; however, two samples had slightly more higher coercivity minerals (90% saturation

  16. Wastewater use in algae production for generation of renewable resources: a review and preliminary results.

    Science.gov (United States)

    Dalrymple, Omatoyo K; Halfhide, Trina; Udom, Innocent; Gilles, Benjamin; Wolan, John; Zhang, Qiong; Ergas, Sarina

    2013-01-05

    Microalgae feedstock production can be integrated with wastewater and industrial sources of carbon dioxide. This study reviews the literature on algae grown on wastewater and includes a preliminary analysis of algal production based on anaerobic digestion sludge centrate from the Howard F. Curren Advanced Wastewater Treatment Plant (HFC AWTP) in Tampa, Florida and secondary effluent from the City of Lakeland wastewater treatment facilities in Lakeland, Florida. It was demonstrated that a mixed culture of wild algae species could successfully be grown on wastewater nutrients and potentially scaled to commercial production. Algae have demonstrated the ability to naturally colonize low-nutrient effluent water in a wetland treatment system utilized by the City of Lakeland. The results from these experiments show that the algae grown in high strength wastewater from the HFC AWTP are light-limited when cultivated indoor since more than 50% of the outdoor illumination is attenuated in the greenhouse.An analysis was performed to determine the mass of algae that can be supported by the wastewater nutrients (mainly nitrogen and phosphorous) available from the two Florida cities. The study was guided by the growth and productivity data obtained for algal growth in the photobioreactors in operation at the University of South Florida. In the analysis, nutrients and light are assumed to be limited, while CO2 is abundantly available. There is some limitation on land, especially since the HFC AWTP is located at the Port of Tampa. The temperature range in Tampa is assumed to be suitable for algal growth year round. Assuming that the numerous technical challenges to achieving commercial-scale algal production can be met, the results presented suggest that an excess of 71 metric tons per hectare per year of algal biomass can be produced. Two energy production options were considered; liquid biofuels from feedstock with high lipid content, and biogas generation from anaerobic

  17. Phantom skin absorption coefficients from spectrophotometric and integrating sphere methods: preliminary comparative results

    CSIR Research Space (South Africa)

    Smit, Jacoba E

    2010-12-01

    Full Text Available Minimalistic or non-invasive diagnosis and treatment of skin disorders requires accurate information regarding skin optical properties. Spectrophotometric and Integrating Sphere (IS) methods are commonly used to extract information regarding...

  18. Preliminary results from direct-to-facility vaccine deliveries in Kano, Nigeria.

    Science.gov (United States)

    Aina, Muyi; Igbokwe, Uchenna; Jegede, Leke; Fagge, Rabiu; Thompson, Adam; Mahmoud, Nasir

    2017-04-19

    As part of its vaccine supply chain redesign efforts, Kano state now pushes vaccines directly from 6 state stores to primary health centers equipped with solar refrigerators. Our objective is to describe preliminary results from the first 20months of Kano's direct vaccine delivery operations. This is a retrospective review of Kano's direct vaccine delivery program. We analyzed trends in health facility vaccine stock levels, and examined the relationship between stock-out rates and each of cascade vaccine deliveries and timeliness of deliveries. Analysis of vaccination trends was based on administrative data from 27 sentinel health facilities. Costs for both the in-sourced and out-sourced approaches were estimated using a bottoms-up model-based approach. Overall stock adequacy increased from 54% in the first delivery cycle to 68% by cycle 33. Conversely, stock-out rates decreased from 41% to 10% over the same period. Similar trends were observed in the out-sourced and in-sourced programs. Stock-out rates rose incrementally with increasing number of cascade facilities, and delays in vaccine deliveries correlated strongly with stock-out rates. Recognizing that stock availability is one of many factors contributing to vaccinations, we nonetheless compared pre- and post- direct deliveries vaccinations in sentinel facilities, and found statistically significant upward trends for 4 out of 6 antigens. 1 antigen (measles) showed an upward trend that was not statistically significant. Hepatitis b vaccinations declined during the period. Overall, there appeared to be a one-year lag between commencement of direct deliveries and the increase in number of vaccinations. Weighted average cost per delivery is US$29.8 and cost per child immunized is US$0.7 per year. Direct vaccine delivery to health facilities in Kano, through a streamlined architecture, has resulted in decreased stock-outs and improved stock adequacy. Concurrent operation of insourced and outsourced programs has

  19. The pre-orogenic detrital zircon record of the Variscan orogeny: Preliminary results

    Science.gov (United States)

    Stephan, Tobias; Kroner, Uwe

    2017-04-01

    groups of similar age distributions. Preliminary results reveal four major sources for the pre-orogenic sedimentary units (i.e. Saharan Metacraton, West-African craton, Amazonas craton and Fennoscandian shield). The mixing of several source signals in Gondwana derived sediment spectra point to vast deltaic systems along the Gondwanan shelf area.

  20. Only fixation for cervical spondylosis: Report of early results with a preliminary experience with 6 cases

    Directory of Open Access Journals (Sweden)

    Atul Goel

    2013-01-01

    Full Text Available Aim: The author reports early post-operative outcome and preliminary experience with an alternative form of treatment of cervical degenerative or spondylotic disease leading to spinal canal stenosis that involves fixation-arthrodesis of the affected spinal segment using one or two (double insurance transarticular screws for each joint. Materials and Methods: During the period of months from March 2013 to July 2013, six patients having cervical spondylotic cord compression were treated with transarticular method of screw fixation of the involved segments. The operation involved section of the spinous process at its base, opening up of the facet joint, denuding of articular cartilage, placement of intraarticular cavity bone graft chips and insertion of either a single or two transarticular screws at each level. The fixation was done in four levels in four patients and at two levels in two patients. Japanese Orthopedic Association score, visual analog scale (neck pain and Odom′s criteria were used to monitor the clinical status of the patients before and after the surgery and at follow-up. Results: Immediate post-operative and a relatively short-term post-operative outcome was remarkably gratifying. During the average period of follow-up of 6 months (range: 3-8 months; there was varying degree of recovery of symptoms. The procedure resulted in firm stabilization and fixation of the spinal segment and provided a ground for arthrodesis. No patient worsened after treatment. During the period of follow-up, all patients showed remarkable and progressive recovery in symptoms. Conclusions: Vertical instability and telescoping, listhesis or overriding of the facets on physical activity seems to be the defining phenomenon in pathogenesis of cervical spondylotic disease. The clinical outcome in our patients suggest that only fixation of the spinal segment can be a rationale form of treatment. Transarticular method of treatment is a simple, safe and

  1. Hypospadias repair using laser tissue soldering (LTS): preliminary results of a prospective randomized study

    Science.gov (United States)

    Kirsch, Andrew J.; Cooper, Christopher S.; Canning, Douglas A.; Snyder, Howard M., III; Zderic, Stephen A.

    1998-07-01

    Purpose: The purpose of this study was to evaluate laser tissue soldering using an 808 nm diode laser and wavelength- matched human albumin solder for urethral surgery in children. Methods: Currently, 30 boys, ages 3 months to 8 years were randomized to standard suturing (n equals 22) or 'sutureless' laser hypospadias repair (n equals 18). Laser soldering was performed with a human albumin solder doped with indocyanine green dye (2.5 mg/ml) using a laser power output of 0.5 W, pulse duration of 0.5 sec, and interval of 0.1 sec. Power density was approximately 16 W/cm2. In the laser group, sutures were used for tissue alignment only. At the time of surgery, neourethral and penile lengths, operative time for urethral repair, and number of sutures/throws were measured. Postoperatively, patients were examined for complications of wound healing, stricture, or fistula formation. Results: Mean age, severity of urethral defect, type of repair, and neourethra length were equivalent between the two groups. Operative time was significantly faster for laser soldering in both simple (1.6 plus or minus 0.21 min, p less than 0.001) and complex (5.4 plus or minus 0.28 min, p less than 0.0001) hypospadias repairs compared to controls (10.6 plus or minus 1.4 min and 27.8 plus or minus 2.9 min, respectively). The mean number of sutures used in the laser group for simple and complex repairs (3.3 plus or minus 0.3 and 8.1 plus or minus 0.64, respectively) were significantly (p less than 0.0001) less than for controls (8.2 plus or minus 0.84 and 20 plus or minus 2.3, respectively). Followup was between 3 months and 14 months. The overall complication rate in the laser group (11%) was lower than the controls (23%). However, statistical significance (p less than 0.05) was achieved only for the subgroup of patients undergoing simple repairs (LTS, 100% success versus suturing, 69% success). Conclusions: These preliminary results indicate that laser tissue soldering for hypospadias repair

  2. Mineral-microorganism interactions in Acid Mine Drainage environments: preliminary results

    Science.gov (United States)

    Carbone, Cristina; Zotti, Mirca; Pozzolini, Marina; Giovine, Marco; Di Piazza, Simone; Mariotti, Mauro; Lucchetti, Gabriella

    2014-05-01

    Minerals play a key role in controlling the mobility and distribution of metals and metalloids of environmental concern in supergenic environments. These are involved in a variety of processes, spanning the alteration of primary minerals to the formation of secondary authigenic phases and can represent a source or a trap for Potentially Ecotoxic Elements (PTEs). Soil, sediments, and waters heavily polluted with PTEs through AMD processes are a reservoir of a unusual bacteria and fungi well adapted to these toxic environments. Classical studies of biotic weathering have mainly focused on water-mineral interaction and on the ability of microorganism to influence the soil solution chemical composition. In this work, we analyzed two different representative ochreous and greenish-blue AMD colloidal precipitates in order to i) characterize the biota population present in these colloidal minerals and ii) verify the bioaccumulation of PTEs into the fungi and the potential impact of bacteria in the geochemistry of the system. The samples are composed by nanocrystalline goethite which contains high amounts of Fe, Cu, Zn, Pb, and Ni and woodwardite that is characterized by Cu, Zn, Ni, Y, and Ce. These precipitates were examined in order to evaluate the presence of fungal strains and to extract bacteria DNA. The preliminary results of fungi characterization show an interesting and selected mycobiota able to survive under unfavourable environmental conditions. A significant number of fungal strains was isolated in pure culture. Most of them belong to the genus Mucor and Penicillium. It is worth noting the presence of Trametes versicolor, a macrofungal lignicolous species already known for heavy metal biosorption capability from aqueous solution (Gülay et al 2003). The same colloidal precipitates have been processed to extract bacteria DNA, using a specific procedure developed for DNA extraction from sediments. The results gave a good yield of nucleic acids and the positive PCR

  3. Public knowledge and perception of geo-hydrological risk in Calabria (southern Italy): preliminary results

    Science.gov (United States)

    Antronico, Loredana; Coscarelli, Roberto; De Pascale, Francesco

    2017-04-01

    The analysis of risk perception is a fundamental tool to strengthen public awareness and knowledge that are directly linked to the way people perceive disaster risk. By means of a quantitative research method (structured interviews), a survey to acquire information on knowledge, communication and perception of natural hazard by the population was led with main reference to landslides and floods. With these aims, a questionnaire including about 50 queries was elaborated with the following main objectives: i) the state of knowledge about landslides and flood phenomena of the people living or working in the survey area; ii) the ability of the population in responding to emergency situations related to such phenomena and the background coming from past events; iii) the trust of the population towards administrators. Moreover, the communication between citizens and Local Authorities when a catastrophic event occurs was evaluated. The survey was carried out on an area of Tyrrhenian seacoast of Calabria (southern Italy) where a set of mountain front alluvial fans develops along the narrow coastal plain. In the study area, a series of rainfall events in the years 2009, 2010, and 2011 have induced several debris flows, hyperconcentrated flows and inundations that threatened the population and mainly caused damage to private buildings and infrastructures located on the alluvial fans. Three municipalities were selected in the study area, where the proposed questionnaire was submitted face-to-face to 300 residents using a judgment sampling procedure. The preliminary results of the survey are alarming: citizens don't have a good communication with local institutions. In addition, the majority of respondents think that landslides and floods are caused by "man-made actions". They indicated "illegal building", "poor land-management practices" and "lack of interest of local administrators" as the main factors that have the most influence in the occurrence of landslides and

  4. Evaluation of a novel noninvasive ICP monitoring device in patients undergoing invasive ICP monitoring: preliminary results.

    Science.gov (United States)

    Ganslandt, Oliver; Mourtzoukos, Stylianos; Stadlbauer, Andreas; Sommer, Björn; Rammensee, Rudolf

    2017-08-08

    OBJECTIVE There is no established method of noninvasive intracranial pressure (NI-ICP) monitoring that can serve as an alternative to the gold standards of invasive monitoring with external ventricular drainage or intraparenchymal monitoring. In this study a new method of NI-ICP monitoring performed using algorithms to determine ICP based on acoustic properties of the brain was applied in patients undergoing invasive ICP (I-ICP) monitoring, and the results were analyzed. METHODS In patients with traumatic brain injury and subarachnoid hemorrhage who were undergoing treatment in a neurocritical intensive care unit, the authors recorded ICP using the gold standard method of invasive external ventricular drainage or intraparenchymal monitoring. In addition, the authors simultaneously measured the ICP noninvasively with a device (the HS-1000) that uses advanced signal analysis algorithms for acoustic signals propagating through the cranium. To assess the accuracy of the NI-ICP method, data obtained using both I-ICP and NI-ICP monitoring methods were analyzed with MATLAB to determine the statistical significance of the differences between the ICP measurements obtained using NI-ICP and I-ICP monitoring. RESULTS Data were collected in 14 patients, yielding 2543 data points of continuous parallel ICP values in recordings obtained from I-ICP and NI-ICP. Each of the 2 methods yielded the same number of data points. For measurements at the ≥ 17-mm Hg cutoff, which was arbitrarily chosen for this preliminary analysis, the sensitivity and specificity for the NI-ICP monitoring were found to be 0.7541 and 0.8887, respectively. Linear regression analysis indicated that there was a strong positive relationship between the measurements. Differential pressure between NI-ICP and I-ICP was within ± 3 mm Hg in 63% of data-paired readings and within ± 5 mm Hg in 85% of data-paired readings. The receiver operating characteristic-area under the curve analysis revealed that the area

  5. Preliminary results of the optical calibration for the stereo camera STC onboard the Bepicolombo mission

    Science.gov (United States)

    Da Deppo, V.; Martellato, E.; Simioni, E.; Borrelli, D.; Dami, M.; Aroldi, G.; Naletto, G.; Veltroni, I. Ficai; Cremonese, G.

    2017-11-01

    BepiColombo is one of the cornerstone missions of the European Space Agency dedicated to the exploration of the planet Mercury and it is expected to be launched in July 2016. One of the BepiColombo instruments is the STereoscopic imaging Channel (STC), which is a channel of the Spectrometers and Imagers for MPO BepiColombo Integrated Observatory SYStem (SIMBIOSYS) suite: an integrated system for imaging and spectroscopic investigation of the Mercury surface. STC main aim is the 3D global mapping of the entire surface of the planet Mercury during the BepiColombo one year nominal mission. The STC instrument consists in a novel concept of stereocamera: two identical cameras (sub-channels) looking at +/-20° from nadir which share most of the optical components and the detector. Being the detector a 2D matrix, STC is able to adopt the push-frame acquisition technique instead of the much common push-broom one. The camera has the capability of imaging in five different spectral bands: one panchromatic and four intermediate bands, in the range between 410 and 930 nm. To avoid mechanisms, the technical solution chosen for the filters is the single substrate stripe-butted filter in which different glass pieces, with different transmission properties, are glued together and positioned just in front of the detector. The useful field of view (FoV) of each sub-channel, though divided in 3 strips, is about 5.3° x 3.2°. The optical design, a modified Schmidt layout, is able to guarantee that over all the FoV the diffraction Ensquared Energy inside one pixel of the detector is of the order of 70-80%. To effectively test and calibrate the overall STC channel, an ad hoc Optical Ground Support Equipment has been developed. Each of the sub-channels has to be separately calibrated, but also the data of one sub-channel have to be easily correlated with the other one. In this paper, the experimental results obtained by the analysis of the data acquired during the preliminary onground

  6. Effects of hormones on cognition in schizophrenic male patients--preliminary results.

    Science.gov (United States)

    Bratek, Agnieszka; Koźmin-Burzyńska, Agnieszka; Krysta, Krzysztof; Cierpka-Wiszniewska, Katarzyna; Krupka-Matuszczyk, Irena

    2015-09-01

    Schizophrenia is a prevalent neurodevelopmental disorder of an unknown etiology and a variable phenotypic expression. In the recent years, the impact of hormones on the course of schizophrenia has been investigated. This study is aimed at assessing the level of correlating serum levels of hormones in schizophrenic male patients with their cognitive functioning measured with neuropsychological tests. In the index group there were 15 medicated male schizophrenic patients. In the control group there were 15 age and education matched healthy men. All subjects underwent analysis of serum hormones level (TSH, testosterone, estradiol, FSH, LH, progesterone and prolactin) and a battery of tests (Trail Making Test A and B, Stroop Test, Verbal and Semantic Fluency Test). The mean serum levels of the following hormones were higher in the index group than in the control group: TSH (1.76 mIU/L vs 1.58 mIU/L; p=0.66), progesterone (0.85 ng/ml vs 0.69 ng/ml; p=0.22) and prolactin (558.71 uIU/ml vs 181 uIU/ml; p=0.025). The mean levels of estradiol (24.36 pg/ml vs 25.40 ng/ml; p=0.64), FSH (3.17 mIU/ml vs 5.72 mIU/ml; p=0.019), LH (3.85 mIU/ml vs 5.77 mIU/ml; p=0.056) and testosterone (2.90 ng/ml vs 5.38 ng/ml; p=0.003) were higher in the control group. In the index group there were significant negative correlations between FSH and semantic fluency (ρ=-0.678606), progesterone and: TMT B (ρ=-0.586763), Stroop 1 (ρ=-0.701880) and Stroop 2 (ρ=-0.601074) and prolactin and TMT A (ρ=-0.579607). The preliminary results of our study show that serum levels of FSH and testosterone are significantly lower, whereas the level of prolactin is markedly higher, in schizophrenic male patients than in healthy men. There is an inverse correlation between serum levels of progesterone, FSH and prolactin and the results of certain cognitive functioning tests in schizophrenic men.

  7. Preliminary results of the comparative study between EO-1/Hyperion and ALOS/PALSAR

    Science.gov (United States)

    Koizumi, E.; Furuta, R.; Yamamoto, A.

    2011-12-01

    [Introduction]Hyper-spectral remote sensing images have been used for land-cover classification due to their high spectral resolutions. Synthetic Aperture Radar (SAR) remote sensing data are also useful to probe surface condition because radar image reflects surface geometry, although there are not so many reports about the land-cover detection with combination use of both hyper-spectral data and SAR data. Among SAR sensors, L-band SAR is thought to be useful tool to find physical properties because its comparatively long wave length can through small objects on surface. We are comparing the result of land cover classification and/or physical values from hyper-spectral and L-band SAR data to find the relationship between these two quite different sensors and to confirm the possibility of the combined analysis of hyper-spectral and L-band SAR data, and in this presentation we will report the preliminary result of this study. There are only few sources of both hyper-spectral and L-band SAR data from the space in this time, however, several space organizations plan to launch new satellites on which hyper-spectral or L-band SAR equipments are mounted in next few years. So, the importance of the combined analysis will increase more than ever. [Target Area]We are performing and planning analyses on the following areas in this study. (a)South of Cairo, Nile river area, Egypt, for sand, sandstone, limestone, river, crops. (b)Mount Sakurajima, Japan, for igneous rock and other related geological property. [Methods and Results]EO-1 Hyperion data are analyzed in this study as hyper-spectral data. The Hyperion equipment has 242 channels but some of them include full noise or have no data. We selected channels for analysis by checking each channel, and select about 150 channels (depend on the area). Before analysis, the atmospheric correction of ATCOR-3 was applied for the selected channels. The corrected data were analyzed by unsupervised classification or principal component

  8. Preliminary result of a three dimensional numerical simulation of cloud formation over a cooling pond

    International Nuclear Information System (INIS)

    Yamada, T.

    1978-01-01

    Cooling ponds receive large amounts of waste heat from industrial sources and release the heat to the atmosphere. These large area sources of warm and moist air may have significant inadvertent effects. This paper is a preliminary step in the development of a method for estimating the perturbations in the atmosphere produced by a cooling pond. A three-dimensional numerical model based on turbulence second-moment closure equations and Gaussian cloud relations has been developed. A simplified version of the model, in which only turbulent energy and length-scale equations are solved prognostically, is used. Numerical simulations are conducted using as boundary conditions the data from a cooling pond study conducted in northern Illinois during the winter of 1976-1977. Preliminary analyses of these simulations indicate that formation of clouds over a cooling pond is sensitive to the moisture content in the ambient atmosphere

  9. RHF RELAP5 model and preliminary loss-of-offsite-power simulation results for LEU conversion

    Energy Technology Data Exchange (ETDEWEB)

    Licht, J. R. [Argonne National Laboratory (ANL), Argonne, IL (United States). Nuclear Engineering Div.; Bergeron, A. [Argonne National Laboratory (ANL), Argonne, IL (United States). Nuclear Engineering Div.; Dionne, B. [Argonne National Laboratory (ANL), Argonne, IL (United States). Nuclear Engineering Div.; Thomas, F. [Institut Laue-Langevin (ILL), Grenoble (Switzerland). RHF Reactor Dept.

    2014-08-01

    The purpose of this document is to describe the current state of the RELAP5 model for the Institut Laue-Langevin High Flux Reactor (RHF) located in Grenoble, France, and provide an update to the key information required to complete, for example, simulations for a loss of offsite power (LOOP) accident. A previous status report identified a list of 22 items to be resolved in order to complete the RELAP5 model. Most of these items have been resolved by ANL and the RHF team. Enough information was available to perform preliminary safety analyses and define the key items that are still required. Section 2 of this document describes the RELAP5 model of RHF. The final part of this section briefly summarizes previous model issues and resolutions. Section 3 of this document describes preliminary LOOP simulations for both HEU and LEU fuel at beginning of cycle conditions.

  10. Preliminary results from an examination of episodic planning in suicidal behavior.

    Science.gov (United States)

    Anestis, Michael D; Pennings, Stephanie M; Williams, Tabatha J

    2014-01-01

    Prior research has reported that a substantial portion of suicidal behavior occurs impulsively. These studies, however, have been unable to assess for episodic planning. To provide preliminary support for the plausibility and utility of assessing episodic, nonlinear planning in suicidal behavior. Fifty undergraduates with a prior history of suicidal behavior responded to a series of questions assessing level of attempt, method, and level of planning during their most recent self-reported suicide attempt. Level of intent was positively associated with planning, and the modal individual whose most recent attempt involved clear intent to die endorsed planning for at least 1 year. These preliminary data support the plausibility and potential utility of assessing episodic planning and indicate that suicide attempts involving a clear intent to die typically require extensive levels of planning and rarely (if ever) emerge without forethought.

  11. Preliminary result on trabecular bone score (TBS in lumbar vertebrae with experimentally altered microarchitecture

    Directory of Open Access Journals (Sweden)

    M. Di Stefano

    2013-01-01

    Full Text Available The aim of this preliminary research is to investigate the reliability of a new qualitative parameter, called Trabecular Bone Score (TBS, recently proposed for evaluating the microarchitectural arrangement of cancellous bone in scans carried out by dual energy X-ray absorptiometry (DXA. Vertebral bodies of 15 fresh samples of lumbar spines of adult pig were analysed either in basal conditions and with altered microarchitecture of the cancellous bone obtained by progressive drilling. The examined bony areas do not show changes in bone mineral density (BMD, whereas TBS values decrease with the increasing alteration of the vertebral microtrabecular structure. Our preliminary data seem to confirm the reliability of TBS as a qualitative parameter useful for evaluating the microarchitectural strength in bony areas quantitatively analysed by DXA.

  12. 2D seismic tomography of Somma- Vesuvius. Description of the experiment and preliminary results.

    Directory of Open Access Journals (Sweden)

    G. Milano

    1996-06-01

    Full Text Available A multidisciplinary project for the investigation of Mt. Vesuvius Structure was started in 1993. The core of the project is represented by a high resolution seismic tomography study by using controlled and natura1 sources. The main research objective is to investigate the feeding system of the vo1cano and to retrieve details of the upper crustal structure in the area. A first 2D using seismic experiment was performed in May 1994, with the aim of studing the feasibility of lIsing tomographic techniques for exploring the vo1cano interiors. Particularly, this experiment was designed to obtain information on the optimal sources-receivers configuration and on the depth extension of the volume sampled by shot-generated seismic waves. 66 three-component seismic stations and 16 single-component analogue instruments were installed by several Italian and French groups to record signals generated by three on-land, underground explosions. Sources and geophones were deployed along a 30-km NW-SE profile passing through the volcano crater. Receivers were placed at an average spacing of 250 m in the middle of the recording line and at 500 m outside. The arrival time data base was complemented by first P and S readings of micro earthquakes which occurred in the recent past within the volcano. The first arrival data set was preliminary used to determine the shallow structure of the volcano by applying Thurber's (1983 tomographic inversion technique. This analysis shows evidence for a high-velocity body which extends vertically from about 400 m below the crater down to at least 3000 m and for a shallow 300-500 m thick low-velocity cover which borders the edifice. Data from the distant shot show evidence for arrivals of deep reflected/converted phases and provide information on the deeper structure under the volcano. The results from the interpretation of 2D data are used for planning a 3D tomographic survey which will be cauied out in 1996.

  13. Near-Infrared Spectroscopic Measurements of Calf Muscle during Walking at Simulated Reduced Gravity - Preliminary Results

    Science.gov (United States)

    Ellerby, Gwenn E. C.; Lee, Stuart M. C.; Stroud, Leah; Norcross, Jason; Gernhardt, Michael; Soller, Babs R.

    2008-01-01

    Consideration for lunar and planetary exploration space suit design can be enhanced by investigating the physiologic responses of individual muscles during locomotion in reduced gravity. Near-infrared spectroscopy (NIRS) provides a non-invasive method to study the physiology of individual muscles in ambulatory subjects during reduced gravity simulations. PURPOSE: To investigate calf muscle oxygen saturation (SmO2) and pH during reduced gravity walking at varying treadmill inclines and added mass conditions using NIRS. METHODS: Four male subjects aged 42.3 +/- 1.7 years (mean +/- SE) and weighing 77.9 +/- 2.4 kg walked at a moderate speed (3.2 +/- 0.2 km/h) on a treadmill at inclines of 0, 10, 20, and 30%. Unsuited subjects were attached to a partial gravity simulator which unloaded the subject to simulate body weight plus the additional weight of a space suit (121 kg) in lunar gravity (0.17G). Masses of 0, 11, 23, and 34 kg were added to the subject and then unloaded to maintain constant weight. Spectra were collected from the lateral gastrocnemius (LG), and SmO2 and pH were calculated using previously published methods (Yang et al. 2007 Optics Express ; Soller et al. 2008 J Appl Physiol). The effects of incline and added mass on SmO2 and pH were analyzed through repeated measures ANOVA. RESULTS: SmO2 and pH were both unchanged by added mass (p>0.05), so data from trials at the same incline were averaged. LG SmO2 decreased significantly with increasing incline (p=0.003) from 61.1 +/- 2.0% at 0% incline to 48.7 +/- 2.6% at 30% incline, while pH was unchanged by incline (p=0.12). CONCLUSION: Increasing the incline (and thus work performed) during walking causes the LG to extract more oxygen from the blood supply, presumably to support the increased metabolic cost of uphill walking. The lack of an effect of incline on pH may indicate that, while the intensity of exercise has increased, the LG has not reached a level of work above the anaerobic threshold. In these

  14. Preliminary results of the first scientific Drilling on Lake Baikal, Buguldeika site, southeastern Siberia

    Science.gov (United States)

    Williams, Douglas F.; Colman, S.; Grachev, M.; Hearn, P.; Horie, Shoji; Kawai, T.; Kuzmin, Mikhail I.; Logachov, N.; Antipin, V.; Bardardinov, A.; Bucharov, A.; Fialkov, V.; Gorigljad, A.; Tomilov, B.; Khakhaev, B.N.; Kochikov, S.; Logachev, N.; Pevzner, L.A.; Karabanov, E.B.; Mats, V.; Baranova, E.; Khlystov, O.; Khrachenko, E.; Shimaraeva, M.; Stolbova, E.; Efremova, S.; Gvozdkov, A.; Kravchinski, A.; Peck, J.; Fileva, T.; Kashik, S.; Khramtsova, T.; Kalashnikova, I.; Rasskazova, T.; Tatarnikova, V.; Yuretich, Richard; Mazilov, V.; Takemura, K.; Bobrov, V.; Gunicheva, T.; Haraguchi, H.; Ito, S.; Kocho, T.; Markova, M.; Pampura, V.; Proidakova, O.; Ishiwatari, R.; Sawatari, H.; Takeuchi, A.; Toyoda, K.; Vorobieva, S.; Ikeda, A.; Marui, A.; Nakamura, T.; Ogura, K.; Ohta, Takeshi; King, J.; Sakai, H.; Yokoyama, T.; Hayashida, A.; Bezrukova, E.; Fowell, S.; Fujii, N.; Letunova, P.; Misharina, V.; Miyoshi, N.; Chernyaeva, G.; Ignatova, I.; Likhoshvai, E.; Granina, L.; Levina, O.; Dolgikh, P.; Lazo, F.; Lutskaia, N.; Orem, W.; Wada, E.; Yamada, K.; Yamada, S.; Callander, E.; Golobokoval, L.; Shanks, W. C. Pat; Dorofeeva, R.; Duchkov, A.

    1997-01-01

    The Baikal Drilling Project (BDP) is a multinational effort to investigate the paleoclimatic history and tectonic evolution of the Baikal sedimentary basin during the Late Neogene. In March 1993 the Baikal drilling system was successfuly deployed from a barge frozen into position over a topographic high, termed the Buguldeika saddle, in the southern basin of Lake Baikal. The BDP-93 scientific team, made up of Russian, American and Japanese scientists, successfully recovered the first long (>100 m) hydraulic piston cores from two holes in 354 m of water. High quality cores of 98 m (Hole 1) and 102 m (Hole 2), representing sedimentation over the last 500,000 years, were collected in 78 mm diameter plastic liners with an average recovery of 72% and 90%, respectively. Magnetic susceptibility logging reveals an excellent hole-to-hole correlation. In this report the scientific team describes the preliminary analytical results from BDP-93 hole 1 cores. Radiocarbon dating by accelerator mass spectrometry provides an accurate chronology for the upper portion of Hole 1. Detailed lithologic characteristics, rock magnetic properties and inorganic element distributions show a significant change to the depositional environment occuring at 50 m subbottom depth, approximately 250,000 BP. This change may be due to uplift and rotation of the horst block in the Buguldeika saddle. The sedimentary section above 50 m is pelitic with varve-like laminae, whereas the section below 50 m contains a high proportion of sand and gravel horizons often organized into turbidite sequences. Accordingly, high resolution seismic records reveal a change in sonic velocity at this depth. It is inferred that sedimentation prior to 250 ka BP was from the west via the Buguldeika river system. After 250 ka BP the Buguldeika saddle reflects an increase in hemipelagic sediments admixed with fine-grained material from the Selenga River drainage basin, east of Lake Baikal. Variations in the spore

  15. Damage detection and quantification using mode curvature variation on framed structures: analysis of the preliminary results

    Science.gov (United States)

    Iacovino, Chiara; Ditommaso, Rocco; Auletta, Gianluca; Ponzo, Felice C.

    2017-04-01

    Continuous monitoring based on vibrational identification methods is increasingly employed for the evaluation of the state of health of existing buildings after strong motion earthquake. Different damage identification methods are based on the variations of damage indices defined in terms modal (eigenfrequencies, mode shapes, and modal damping) and/or non-modal parameters. Most of simplified methods for structural health monitoring and damage detection are based on the evaluation of the dynamic characteristics evolution associated to the fundamental mode of vibration of a monitored structure. Aim of this work is the upgrade of an existing method for damage localization on framed structures during a moderate/destructive earthquake. The existing version of the method is based on the comparison of the geometric characteristics (with particular reference to the mode curvature) exhibited by the structures, related to fundamental mode of vibration, before and during an earthquake. The approach is based on the use of a nonlinear filter, the band-variable filter, based on the Stockwell Transform able to extract the nonlinear response of each mode of vibration. The new version of the method provides the possibility to quantify a possible damage occurred on the monitored structure linking the mode curvature variation with the maximum inter-story drift. This paper shows the preliminary results obtained from several simulations on nonlinear numerical models of reinforced concrete framed structures, designed for only gravity loads, without and with the presence of infill panels. Furthermore, a correlation between maximum mode curvature difference and maximum inter-story drift has been defined for the different numerical models in order to quantify the structural damage. Acknowledgements This study was partially funded by the Italian Department of Civil Protection within the project DPC-RELUIS 2016 - RS4 ''Seismic observatory of structures and health monitoring'' and by the

  16. Permanent GPS network around the bend of the Jura Arc: preliminary results

    Science.gov (United States)

    Sue, Christian; Walpersdorf, Andrea; Sakic, Pierre; Rabin, Mickael; Champagnac, Jean daniel

    2014-05-01

    The Jura Mountain, the westernmost belt of the alpine orogeny, is one of the best-studied orogenic arcs in the world. The Jura arc is a typical fold-and-thrust belt, with a main décollement thrust localized in the Triasic evaporites under the Jurassic-Cretaceous series. It is directly linked to the alpine orogenic wedge, especially in term of critical taper. It is supposed to be still active in collision mode, which would rise up the issue of its relation with the Alps to the East, currently undergoing post-orogenic gravitational potential adjustment. Nevertheless, its current activity and recent deformation remain a matter of debate, few neotectonic-related data being available in this area. The Jura is crosscut by left-lateral strike-slip faults in a radial scheme with respect to the arc, and recent seismicity along one of them, the Vuache fault (Annecy earthquake Ml 5.3 1996), and at the northern front of the belt (Beaume-les-Dames earthquake, Ml 5.1, 2004), argues for ongoing active deformation across the Jura Mountain. Here we present preliminary results of permanent GPS network surrounding the Jura belt (RENAG and RPG data), which tend to show very slow, yet self-consistent strain pattern of the order of some tenth of mm/yr over 100 km-long typical baselines, with shortening perpendicular to the arc, and extension parallel to its axial trend. We also characterize a slow uplift in the same order of magnitude, which appears to be correlated to the current uplift observed in the Alps. Indeed, the uplift velocities are continuously decreasing from the core of the Alps (+2 mm/yr) to the westernmost part of the Jura (+0,4 mm/yr) and to the stable foreland (-0.1 mm/yr). Actually, from the Po plain to the Jura foreland, the GPS-related uplift velocities are well correlated to the topography, and the Jura arc appears connected to the Alps from this point of view. In order to better determine the deformation pattern in the Jura arc, we present a new regional GNSS

  17. Equatorial spread F and plasma bubbles: Preliminary results from the COPEX campaign

    Science.gov (United States)

    Batista, I.; Abdu, M.; Reinisch, B.; de Paula, E.; Groves, K.

    2003-04-01

    on either side. They consist of irregularity structures of scale sizes varying from 10's of centimeters to 100's of kilometers. These affect HF communications, as well as the satellite signals used for the many practical applications in our daily life: point to point communications, satellite to ground communications, navigation systems based on GPS satellites, geodesy and over-the-horizon radars. ESF is initiated by plasma instability processes operating at the F layer bottomside and grows into the topside ionosphere. In this paper we will present some preliminary results of analysis of the multi instrument data sets aiming at a better understanding of the possible causes of the day-to-day variability of the equatorial spread F.

  18. JIRAM-Juno: Overview of Preliminary Results in the Study of Jupiter "Infrared-Bright" Areas

    Science.gov (United States)

    Grassi, Davide; Adriani, Alberto; Bolton, Scott J.

    2017-04-01

    The JIRAM instrument on board the Juno spacecraft includes a spectrometer channel that operates in the range 2-5 microns with a spectral resolution of about 15 nm. Data from this channel are particularly valuable in the study of bright IR regions, where the upper cloud decks are relatively thin and the thermal radiation emitted at pressures down to 3-5 bars can be measured by infrared remote-sensing instruments. Previous studies using NIMS-Galileo [1] and VIMS-Cassini [2] data, as well as a specific assessment for the JIRAM instrument [3], have demonstrated the possibility of constraining the water, ammonia and phosphine content using moderate-resolution spectra spanning the methane transparency window at 5 microns. While considerable efforts have been devoted to the study of brightest features - the so-called "Hot-Spots", located between the Equatorial zone and the North equatorial Belt - other prominent bright areas over the disk of Jupiter remain largely uninvestigated. This talk reviews preliminary results of the JIRAM observations acquired around the first Juno "perijove" (closest approach of Jupiter) after orbit insertion. In general terms, the retrieved contents of the gaseous species mentioned above agree with the global latitudinal trends presented in [3] and [4]. Nonetheless, in several instances, the spatial capabilities of JIRAM allow one to detect specific spatial trends, likely to be associated to dynamic regimes at regional scale. This work was supported by the Italian Space Agency through ASI-INAF contract I/010/10/0 and 2014-050-R.0. JIL acknowledges support from NASA through the Juno Project. GSO acknowledges support from NASA through funds that were distributed to the Jet Propulsion Laboratory, California Institute of Technology. [1] Irwin et al., 1998, doi:10.1029/98JE00948 [2] Giles et al., 2015, doi:10.1016/j.icarus.2015.05.030 [3] Grassi et al., 2010, doi:10.1016/j.pss.2010.05.003 [4] Giles et al., 2016, arXiv:1610.09073

  19. Shigaraki UAV-Radar Experiment (ShUREX): overview of the campaign with some preliminary results

    Science.gov (United States)

    Kantha, Lakshmi; Lawrence, Dale; Luce, Hubert; Hashiguchi, Hiroyuki; Tsuda, Toshitaka; Wilson, Richard; Mixa, Tyler; Yabuki, Masanori

    2017-12-01

    The Shigaraki unmanned aerial vehicle (UAV)-Radar Experiment (ShUREX) is an international (USA-Japan-France) observational campaign, whose overarching goal is to demonstrate the utility of small, lightweight, inexpensive, autonomous UAVs in probing and monitoring the lower troposphere and to promote synergistic use of UAVs and very high frequency (VHF) radars. The 2-week campaign lasting from June 1 to June 14, 2015, was carried out at the Middle and Upper Atmosphere (MU) Observatory in Shigaraki, Japan. During the campaign, the DataHawk UAV, developed at the University of Colorado, Boulder, and equipped with high-frequency response cold wire and pitot tube sensors (as well as an iMET radiosonde), was flown near and over the VHF-band MU radar. Measurements in the atmospheric column in the immediate vicinity of the radar were obtained. Simultaneous and continuous operation of the radar in range imaging mode enabled fine-scale structures in the atmosphere to be visualized by the radar. It also permitted the UAV to be commanded to sample interesting structures, guided in near real time by the radar images. This overview provides a description of the ShUREX campaign and some interesting but preliminary results of the very first simultaneous and intensive probing of turbulent structures by UAVs and the MU radar. The campaign demonstrated the validity and utility of the radar range imaging technique in obtaining very high vertical resolution ( 20 m) images of echo power in the atmospheric column, which display evolving fine-scale atmospheric structures in unprecedented detail. The campaign also permitted for the very first time the evaluation of the consistency of turbulent kinetic energy dissipation rates in turbulent structures inferred from the spectral broadening of the backscattered radar signal and direct, in situ measurements by the high-frequency response velocity sensor on the UAV. The data also enabled other turbulence parameters such as the temperature

  20. Preliminary results on the dynamics of large and flexible space structures in Halo orbits

    Science.gov (United States)

    Colagrossi, Andrea; Lavagna, Michèle

    2017-05-01

    The global exploration roadmap suggests, among other ambitious future space programmes, a possible manned outpost in lunar vicinity, to support surface operations and further astronaut training for longer and deeper space missions and transfers. In particular, a Lagrangian point orbit location - in the Earth- Moon system - is suggested for a manned cis-lunar infrastructure; proposal which opens an interesting field of study from the astrodynamics perspective. Literature offers a wide set of scientific research done on orbital dynamics under the Three-Body Problem modelling approach, while less of it includes the attitude dynamics modelling as well. However, whenever a large space structure (ISS-like) is considered, not only the coupled orbit-attitude dynamics should be modelled to run more accurate analyses, but the structural flexibility should be included too. The paper, starting from the well-known Circular Restricted Three-Body Problem formulation, presents some preliminary results obtained by adding a coupled orbit-attitude dynamical model and the effects due to the large structure flexibility. In addition, the most relevant perturbing phenomena, such as the Solar Radiation Pressure (SRP) and the fourth-body (Sun) gravity, are included in the model as well. A multi-body approach has been preferred to represent possible configurations of the large cis-lunar infrastructure: interconnected simple structural elements - such as beams, rods or lumped masses linked by springs - build up the space segment. To better investigate the relevance of the flexibility effects, the lumped parameters approach is compared with a distributed parameters semi-analytical technique. A sensitivity analysis of system dynamics, with respect to different configurations and mechanical properties of the extended structure, is also presented, in order to highlight drivers for the lunar outpost design. Furthermore, a case study for a large and flexible space structure in Halo orbits around

  1. Prospective study of the " Inside-Out" arthroscopic ankle ligament technique: Preliminary result.

    Science.gov (United States)

    Nery, Caio; Fonseca, Lucas; Raduan, Fernando; Moreno, Marcus; Baumfeld, Daniel

    2017-03-22

    Lateral ankle ligament injury is among the most common orthopedic injuries. The objective of this study is to present the preliminary prospective results of treatment using the "Inside-Out" variant of the fully arthroscopic Broström-Gould technique. Twenty six patients were included: 20 male and 6 female, aged 19-60 years, mean 41 years. All patients had positive "anterior drawer" and "talar tilt" tests. When necessary, cartilage injuries were treated with microfracture and arthroscopic resection for anterior impingement; three patients had hindfoot varus, on whom Dwyer osteotomy was performed; one patient had peroneal tendinopathy and was treated with tendoscopic debridement and another one had partial injury of the deltoid ligament, which was treated by direct repair. Two arthroscopic surgery portals were used; the anteromedial and anterolateral. After careful inspection of the joint, the anterior surface of the fibula was cleaned to resect the remains of the anterior talo-fibular ligament. An anchor with two sutures was placed on the anterior aspect of the fibula, 1cm from the distal apex of the malleolus. The sutures were passed through the remnant of the anterior talo-fibular ligament as well as the extensor retinaculum using special curved needles. Duncan knots were used to tie the ligament and the inferior extensor retinaculum while the ankle was kept in a neutral position. Patients were kept immobilized non-weight bearing for 2 weeks and were then allowed to start weight bearing in a removable protective boot for 4 weeks. The patients were able to return to sporting activities 6 months after surgery. After a mean follow-up of 27 months (range 21-36 months), patients were functionally evaluated using the American Orthopedics Foot and Ankle Society (AOFAS) ankle score. The mean preoperative value was 58 points, while the mean postoperative value increased to 90 points. One patient had paresthesia in the superficial fibular nerve area, which resolved

  2. The Nicobar Fan and sediment provenance: preliminary results from IODP Expedition 362, NE Indian Ocean

    Science.gov (United States)

    Pickering, K. T.; Pouderoux, H.; Milliken, K. L.; Carter, A.; Chemale, F., Jr.; Kutterolf, S.; Mukoyoshi, H.; Backman, J.; McNeill, L. C.; Dugan, B.; Expedition 362 Scientists, I.

    2017-12-01

    IODP Expedition 362 (6 Aug-6 Oct 2016) was designed to drill the input materials of the north Sumatran subduction zone, part of the 5000 km long Sunda subduction system and to understand the origin of the Mw 9.2 earthquake and tsunami that devastated coastal communities around the Indian Ocean in 2004 linked to unexpectedly shallow seismogenic slip and a distinctive forearc prism structure (1,2,3). Two sites, U1480 and U1481 on the Indian oceanic plate 250 km SW of the subduction zone on the eastern flank of the Ninetyeast Ridge, were drilled, cored, and logged to a maximum depth of 1500 m below seafloor. The input materials of the north Sumatran subduction zone are a thick (up to 4-5 km) succession mainly of Bengal-Nicobar Fan siliciclastic sediments overlying a mainly pelagic/hemipelagic succession, with igneous and volcaniclastic material above oceanic basement. At Sites U1480 and U1481, above the igneous basement ( 60-70 Ma), the sedimentary succession comprises deep-marine tuffaceous deposits with igneous intrusions, overlain by pelagic deposits, including chalk, and a thick Nicobar Fan succession of sediment gravity-flow (SGF) deposits, mainly turbidites and muddy debrites. The Nicobar Fan deposits (estimated total volume of 9.2 x 106 km3: 3) represent >90% of the input section at the drill sites and many of the beds are rich in plant material. These beds are intercalated with calcareous clays. Sediment accumulation rates reached 10-40 cm/kyr in the late Miocene to Pliocene, but were much reduced since 1.6 Ma. The onset of Nicobar Fan deposition at the drill sites ( 9.5 Ma; 2) is much younger than was anticipated precruise ( 30-40 Ma), based on previous regional analyses of Bengal-Nicobar Fan history and presumptions of gradual fan progradation. Our preliminary results suggest that the Nicobar Fan was active between 1.6 and 9.5 Ma, and possibly since 30 Ma (3). The observed mineralogical assemblage of the SGF deposits and zircon age dating are consistent with

  3. Site characterization of the Romanian Seismic Network stations: a national initiative and its first preliminary results

    Science.gov (United States)

    Grecu, Bogdan; Zahria, Bogdan; Manea, Elena; Neagoe, Cristian; Borleanu, Felix; Diaconescu, Mihai; Constantinescu, Eduard; Bala, Andrei

    2017-04-01

    The seismic activity in Romania is dominated by the intermediate-depth earthquakes occurring in Vrancea region, although weak to moderate crustal earthquakes are produced regularly in different areas of the country. The National Institute for Earth Physics (NIEP) built in the last years an impressive infrastructure for monitoring this activity, known as the Romanian Seismic Network (RSN). At present, RSN consists of 122 seismic stations, of which 70 have broadband velocity sensors and 42 short period sensors. One hundred and eleven stations out of 122 have accelerometer sensors collocated with velocity sensors and only 10 stations have only accelerometers. All the stations record continuously the ground motion and the data are transmitted in real-time to the Romanian National Data Center (RoNDC), in Magurele. Last year, NIEP has started a national project that addresses the characterization of all real-time seismic stations that constitute the RSN. We present here the steps that were undertaken and the preliminary results obtained since the beginning the project. The first two activities consisted of collecting all the existent technical and geological data, with emphasize on the latter. Then, we performed station noise investigations and analyses in order to characterize the noise level and estimate the resonances of the sites. The computed H/V ratios showed clear resonant peaks at different frequencies which correlate relatively well with the thickness of the sedimentary package beneath the stations. The polarization analysis of the H/V ratios indicates for some stations a strong directivity of the resonance peak which suggests possible topographic effects at the stations. At the same time, special attention was given to the estimation of the site amplification from earthquake data. The spectral ratios obtained from the analysis of more than 50 earthquakes with magnitudes (Mw) larger than 4.1 are characterized by similar resonance peaks as those obtained from

  4. Seismic Response of a Sedimentary Basin: Preliminary Results from Strong Motion Downhole Array in Taipei Basin

    Science.gov (United States)

    Young, B.; Chen, K.; Chiu, J.

    2013-12-01

    The Strong Motion Downhole Array (SMDA) is an array of 32 triggered strong motion broadband seismometers located at eight sites in Taipei Basin. Each site features three to five co-located three-component accelerometers--one at the surface and an additional two to four each down independent boreholes. Located in the center of Taipei Basin is Taipei City and the Taipei metropolitan area, the capital of Taiwan and home to more than 7 million residents. Taipei Basin is in a major seismic hazard area and is prone to frequent large earthquakes producing strong ground motion. This unique three-dimension seismic array presents new frontiers for seismic research in Taiwan and, along with it, new challenges. Frequency-dependent and site-specific amplification of seismic waves from depth to surface has been observed: preliminary results indicate that the top few tens of meters of sediment--not the entire thickness--are responsible for significant frequency-dependent amplification; amplitudes of seismic waves at the surface may be as much as seven times that at depth. Dominant amplification frequencies are interpreted as quarter-wavelength constructive interference between the surface and major interfaces in the sediments. Using surface stations with known orientation as a reference, borehole seismometer orientations in these data--which are unknown, and some of which vary considerably from event to event--have been determined using several methods. After low-pass filtering the strong motion data, iteratively rotating the two horizontal components from an individual borehole station and cross-correlating them with that from a co-located surface station has proven to be very effective. In cases where the iterative cross-correlation method does not provide a good fit, rotating both surface and borehole stations to a common axis of maximum seismic energy provides an alternative approach. The orientation-offset of a borehole station relative to the surface station may be

  5. Preliminary results for HIP bonding Ta to W targets for the materials test station

    Energy Technology Data Exchange (ETDEWEB)

    Dombrowski, David E [Los Alamos National Laboratory; Maloy, Stuart A [Los Alamos National Laboratory

    2009-01-01

    Tungsten targets for the Materials Test Station (MTS) were clad with thin tantalum cover plates and a tantalum frame using hot isostatic pressing (HIP). A preliminary HIP parameter study showed good bonding and intimate mechanical contact for Ta cover plate thicknesses of 0.25 mm (0.010 inch) and 0.38 mm (0.015 inch). HIP temperatures of full HIP runs were 1500 C (2732 F). HIP pressure was 203 MPa (30 ksi).

  6. [A therapeutic education program for parents of children with ASD: Preliminary results about the effectiveness of the ETAP program].

    Science.gov (United States)

    Derguy, C; Poumeyreau, M; Pingault, S; M'bailara, K

    2017-11-24

    in the ETAP program ("ETAP Group"), compared to ten controls who did not participate, but who are on a waiting list ("Control Group"). Each participant completed a Quality of Life Questionnaire (WhoQol-Brief) and an Anxiety-Depressive Symptomatology Questionnaire (HADS) prior to the start of the program (T1) and after the session 7 (T2). Preliminary analyses show a good intergroup matching on socio-demographic and medical data. Moreover, the two groups are not significantly different at T1 over the set of dependent variables measured. Our results show an improvement in the quality of life of the depressive symptomatology in the participants. On the other hand, we did not notice any significant decrease in anxiety symptoms. However, when we consider the proportion of parents with a significant anxiety state (in terms of the clinical threshold of HADS, score ≥10), we see that it tends to decrease after the program only for the group ETAP. These data should be interpreted with caution because of their preliminary nature and the small size of our sample. However, the first steps are encouraging and confirm the value of the therapeutic education model for parents of children with ASD. The different information given during the sessions takes into account the previous representations, knowledge and skills of the parent. Thus the program promotes the upholding and the development of individual resources in parents. In addition, the psychosocial skills targeted also to make access easier to available environmental resources. Finally, in a more indirect way, the ETAP program also aims to maintain or restore a positive parenthood and individual identity and the progressive development of new ways of to interact with the environment. An adaptation of the Hobfoll resource conservation model is proposed by the authors to formulate hypotheses on the mechanisms of action of the ETAP program. Copyright © 2017 L'Encéphale, Paris. Published by Elsevier Masson SAS. All rights

  7. Rapid correction of metabolic alkalosis in hypertrophic pyloric stenosis with intravenous cimetidine: preliminary results.

    Science.gov (United States)

    Banieghbal, Behrouz

    2009-03-01

    Pyloromyotomy has been the treatment of choice for hypertrophic pyloric stenosis (HPS) for the past century. In most HPS cases, there is mild metabolic alkalosis, which requires intravenous fluid resuscitation with 5% dextrose/normal saline for 1-2 days. However, in some cases, due to a delay in diagnosis, alkalosis becomes severe and a much longer resuscitation period (5-10 days) is required to normalize serum pH. Metabolic alkalosis of HPS results from excessive vomiting of hydrochloric acid; and therefore if its production is reduced, serum pH can be normalized faster. In this study, the use of intravenous cimetidine (CM) in a small number of infants with HPS is presented. Over a 28-month period, 32 HPS cases, including a sub-group of 17 infants (aged 7-9 weeks) with arterial pH >7.60, were admitted to a tertiary referral unit. Four infants in this sub-group were treated with standard resuscitation fluids for 4 days prior to intravenous CM, while 12 infants received CM immediately. Intravenous CM (10 mg/kg) was given at twice daily until arterial pH was less than 7.50. In one case, intravenous omeprazole at 0.1 mg/kg was given instead of CM. In all 17 cases, CM treatment or omeprazole therapy (for 12-48 h) reduced pH to less than 7.50, thus allowing for Ramstedt pyloromyotomy the same day. These patients were allowed oral feeding on the following day and were discharged at 1-3 post-operative days. No complications due to CM (or omperazole) treatment were observed. Intravenous CM administration can rapidly normalize severe metabolic alkalosis in HPS patients. As a result, pyloromyotomy can be performed sooner reducing both hospital stay and costs.

  8. Fugacity based modeling for pollutant fate and transport during floods. Preliminary results

    Science.gov (United States)

    Deda, M.; Fiorini, M.; Massabo, M.; Rudari, R.

    2010-09-01

    Fugacity based modeling for pollutant fate and transport during floods. Preliminary results Miranda Deda, Mattia Fiorini, Marco Massabò, Roberto Rudari One of the concerns that arises during floods is whether the wide-spreading of chemical contamination is associated with the flooding. Many potential sources of toxics releases during floods exists in cities or rural area; hydrocarbons fuel storage system, distribution facilities, commercial chemical storage, sewerage system are only few examples. When inundated homes and vehicles can also be source of toxics contaminants such as gasoline/diesel, detergents and sewage. Hazardous substances released into the environment are transported and dispersed in complex environmental systems that include air, plant, soil, water and sediment. Effective environmental models demand holistic modelling of the transport and transformation of the materials in the multimedia arena. Among these models, fugacity-based models are distribution based models incorporating all environmental compartments and are based on steady-state fluxes of pollutants across compartment interfaces (Mackay "Multimedia Environmental Models" 2001). They satisfy the primary objective of environmental chemistry which is to forecast the concentrations of pollutants in the environments with respect to space and time variables. Multimedia fugacity based-models has been used to assess contaminant distribution at very different spatial and temporal scales. The applications range from contaminant leaching to groundwater, runoff to surface water, partitioning in lakes and streams, distribution at regional and even global scale. We developped a two-dimensional fugacity based model for fate and transport of chemicals during floods. The model has three modules: the first module estimates toxins emission rates during floods; the second modules is the hydrodynamic model that simulates the water flood and the third module simulate the dynamic distribution of chemicals in

  9. Cosmogenic Radionuclides in Antarctic Meteorites: Preliminary Results on Terrestrial Ages and Temporal Phenomena

    Science.gov (United States)

    Michlovich, E.; Vogt, S.; Wolf, S. F.; Elmore, D.; Lipschutz, M. E.

    1993-07-01

    the production rates for these radionuclides in this group of meteorites to be 18.2 +/- 2.3 and 58 +/- 13 dpm/kg respectively, consistent with production rates cited for falls [8]. Cosmic ray exposure ages using the ^10Be/^21Ne method outlined by Graf et al. [9] substantially agree with ages calculated from noble gases alone. Similar agreements are obtained between cosmic ray exposure ages based solely on noble gases and those calculated using ^26Al/^21Ne [9]. We calculated terrestrial ages using the secular equilibrium distribution for ^36Cl of 22.8 +/- 3.1 dpm/kg [10]. Our results are similar to those seen by Nishiizumi et al. [10], with a few ages ranging up to several hundred thousand years. It is worth noting that the Yamato meteorites measured in the present study, all of which happen to have been collected in the 1979 recovery effort ("Y79"), have a much older terrestrial age distribution (median age of 140 ka) than the Yamato distribution shown in [10]. We find it interesting that our Yamato age distribution is, however, consistent with the distribution of Y79 ages (median age, 110 ka) listed in [10], and that non-Y79 Yamato meteorites (median age in [10], 22 ka) seem to be responsible for a disproportionate number of the youngest Yamato meteorites. This possible collection area phenomenon is under investigation. Preliminary statistical analysis of the results using the preliminary terrestrial ages calculated here, trace-element data [3,4,11], and the methods elucidated in [2] is consistent with the notion that the meteorite flux sampled by the Earth has changed as a function of time. The latest results will be presented in Vail. References: [1] Koeberl C. and Cassidy W. A. (1991) GCA, 55, 3-18. [2] Lipschutz M. E. and Samuels S. M. (1991) GCA, 55, 19-34. [3] Wolf S. F. and Lipschutz M. E. (1992) LPS XXIII, 1545-1546. [4] Dodd R. T. et al. (1993) JGR, submitted. [5] Wetherill G. W. (1986) Nature, 319, 357-358. [6] Schultz L., personal communication. [7

  10. In-line polariscopic checking of plastic molded-injected lenses: preliminary results

    Science.gov (United States)

    Arasa, J.; Mayershofer, D.; Romero, J.

    2015-05-01

    focal length, the lens is introduced in a matching index and the polariscopic measurement is done. The proposed polariscopic arrangement uses two lineal polarizers, one acting as polarizer and the other acting as analyzer. This system instead of using one lineal polarizer and a lineal polarizer with an extra lambda/4 plate provides us an extra degree of freedom, enabling the possibility to put a certain degree of polarization in a well determined position of the lens, in our case the center of this lens. The aim of this study is to select the minimum number of sets polarizer-analyzer and the right wavelengths to obtain a sure selection of the right lens. The preliminary results show that use two different wavelengths 470 & 627 nm is a good option to obtain a robust image. The second free variables that must be adjusted to obtain good values is the minimum number of set polarizer-analyzer necessary to obtain confident results. In our first tests it seems that recording only at 0, 15, 30 and 45 degrees is enough to get good results. Mathematica description and first results for a PMMA lens are presented, however the number of measurements must be diminished to obtain an easy in-line implementation

  11. Preliminary study of Alzheimer's Disease diagnosis based on brain electrical signals using wireless EEG

    International Nuclear Information System (INIS)

    Handayani, N; Akbar, Y; Khotimah, S N; Haryanto, F; Arif, I; Taruno, W P

    2016-01-01

    This research aims to study brain's electrical signals recorded using EEG as a basis for the diagnosis of patients with Alzheimer's Disease (AD). The subjects consisted of patients with AD, and normal subjects are used as the control. Brain signals are recorded for 3 minutes in a relaxed condition and with eyes closed. The data is processed using power spectral analysis, brain mapping and chaos test to observe the level of complexity of EEG's data. The results show a shift in the power spectral in the low frequency band (delta and theta) in AD patients. The increase of delta and theta occurs in lobus frontal area and lobus parietal respectively. However, there is a decrease of alpha activity in AD patients where in the case of normal subjects with relaxed condition, brain alpha wave dominates the posterior area. This is confirmed by the results of brain mapping. While the results of chaos analysis show that the average value of MMLE is lower in AD patients than in normal subjects. The level of chaos associated with neural complexity in AD patients with lower neural complexity is due to neuronal damage caused by the beta amyloid plaques and tau protein in neurons. (paper)

  12. Case-control study on radon exposure and lung cancer in an Italian region. Preliminary results

    International Nuclear Information System (INIS)

    Bochicchio, F; Nuccetelli, C.; Forastiere, F.; Mallone, S.; Sera, F.

    2000-01-01

    population to natural radioactivity. The radon dosemeters were first placed between September 1997 and June 1998. In 1327 dwellings the dosemeters were positioned in the index dwelling, whereas in 474 a similar dwelling was measured (i.e., a dwelling in the same building, and at approximately the same floor). All together, more than 85% of the target 2068 dwellings were monitored. Radon and gamma dosemeter collection was concluded in August 1999, and data analysis is ongoing. The preliminary results on about 4800 radon dosemeters exposed for six-month periods (about 3500 dosemeters for the first six-month period in about 1750 dwellings, and about 1300 for the second six-month period in about 650 dwellings) are the followings: average =100 Bq/m3, geometric mean =75 Bq/m3, geometric standard deviation =2.1, 10%>200 Bq/m3, 2.2%>400 Bq/m3. These data confirm that the presence of indoor radon in Lazio region is significant. More detailed and complete results are expected to be available by January 2000. (author)

  13. Revisiting sweat chloride test results based on recent guidelines for diagnosis of cystic fibrosis.

    Science.gov (United States)

    Pagaduan, Jayson V; Ali, Mahesheema; Dowlin, Michael; Suo, Liye; Ward, Tabitha; Ruiz, Fadel; Devaraj, Sridevi

    2018-03-01

    Recent sweat chloride guidelines published by the Cystic Fibrosis Foundation changed the intermediate sweat chloride concentration range from 40-59 mmol/L to 30-59 mmol/L for age > 6 months. We wanted to know how this new guideline would impact detection of cystic fibrosis among patients who previously had sweat tests done at Texas Children's Hospital. We revisited sweat chloride test results (n = 3012) in the last 5 years at Texas Children's Hospital based on the new guidelines on diagnosis of cystic fibrosis from the Cystic Fibrosis Foundation. We identified 125 patients that would be reclassified in the intermediate sweat chloride value with the new guidelines that were classified as "unlikely to have CF" in the previous guidelines. 8 (32%) patients with CFTR gene testing were positive for CFTR gene mutation(s). 4 (50%) of these patients were identified to have 2 CFTR mutations. One had variant combination that was reported to cause CF but all were diagnosed with CFTR-related metabolic syndrome. Our findings concur with the new CF diagnosis guidelines that changing the intermediate cut-off to 30-59 mmol/L sweat chloride concentration in combination with CFTR genetic analysis enhances the probability of identifying individuals that have risk of developing CF or have CF and enables for earlier therapeutic intervention.

  14. Role of [18F]FDG-PET/CT after radiofrequency ablation of liver metastases: preliminary results

    International Nuclear Information System (INIS)

    Travaini, Laura L.; Trifiro, Giuseppe; Paganelli, Giovanni; Ravasi, Laura; Monfardini, Lorenzo; Della Vigna, Paolo; Bonomo, Guido; Orsi, Franco; Chiappa, Antonio; Mallia, Andrew; Ferrari, Mahila

    2008-01-01

    Focal metastasis may be treated with radiofrequency ablation (RFA), a low invasive method yet limited by the lack of direct evidence of radicality of treatment. We, hereby, aimed at assessing the role of positron emission tomography-computed tomography (PET/CT) with fluoride radiolabeled deoxy-glucose ([ 18 F]FDG) in RFA treatment success evaluation and early diagnosis of local relapse of liver metastasis after RFA procedure. RFA was performed in nine patients on 12 liver metastasis, serially imaged through [ 18 F]FDG-PET/CT and multidetector CT (MDCT) at 1, 3, 6, and 9 months after treatment. Eight lesions were also scanned with [ 18 F]FDG-PET/CT at 1 week after treatment. Imaging analyses were performed on 47 [ 18 F]FDG-PET/CT and 51 MDCT. Imaging reading outcomes were compared to each other and to biopsy tissue results when available. In one case, [ 18 F]FDG-PET/CT revealed radiotracer uptake at RFA site a week after procedure. Negative concordant outcome was obtained on eight lesions at 1 month after RFA, on eight cases at 3 months, on four at 6 months, and on two cases at 9 months. Extra-liver (peritoneal) disease was detected in one case by both [ 18 F]FDG-PET/CT and MDCT. In seven cases, [ 18 F]FDG-PET/CT revealed the presence of local recurrence earlier than MDCT. In no cases did MDCT detect local relapse earlier than [ 18 F]FDG-PET/CT. [ 18 F]FDG-PET/CT may detect RFA treatment failure as well as local relapse after RFA earlier than MDCT. (orig.)

  15. MR imaging and MR spectroscopy for characterization of cardiomyopathies in adolescents - preliminary results

    International Nuclear Information System (INIS)

    Beer, M.; Buchner, S.; Fuchs, J.; Machann, W.; Ritter, C.O.; Beissert, M.; Darge, K.; Hahn, D.; Koestler, H.; Wirbelauer, J.

    2007-01-01

    Purpose: Cardiomyopathy is a rare but life-threatening disease in children and adolescents. Recent studies reported morphological, functional or metabolic alterations of the heart. We discuss a combined MR imaging and 31 P MR spectroscopy (MRS) protocol allowing the analysis of interdependencies between these parameters. Since normal values of cardiac MR parameters in this age group are not available, we included studies of age-matched healthy adolescents. Materials and Methods: 2D-CINE was used to assess left ventricular (LV) parameters. Additional 3D-Chemical Shift Imaging (3D-CSI) and Spectral Localization with Optimal Pointspread Function (SLOOP) reconstruction allowed quantification of the cardiac energy metabolism. Patients (n = 4; all male; age 16.8 ± 2.9 years) were included on the basis of an echocardiographic diagnosis of possible cardiomyopathy. The same protocol was applied to healthy young volunteers (n = 4; 1 female, 3 male; age 15.5 ± 0.6 years). Results: The patients had a significantly higher LV mass index compared to the control group (147 ± 41 g/m2 versus 97 ± 16 g/m2; p = 0.04). The other LV parameters (including LV EF with 59 ± 22 % versus 67 ± 10 %) showed no significant differences. The phosphocreatine to adenosine triphosphate ratio (PCr/ATP-ratio) of the patients was reduced to 1.71 ± 0.40 versus 2.44 ± 0.30 (p = 0.01), combined with a tendency towards decreased PCr concentrations of 9.1 ± 2.5 versus 7.9 ± 1.0 mmol/kg. Conclusion: The combination of 31 P MR spectroscopy and MR imaging allows quantitative determination of morphologic, functional and metabolic alterations in adolescents with suspected cardiomyopathy in one examination procedure. The reduction of energy metabolism combined with unaltered global function may indicate a primary role of metabolism in the pathogenesis of cardiomyopathies in adolescents. (orig.)

  16. Photoacoustic imaging for differential diagnosis of benign polyps versus malignant polyps of the gallbladder: A preliminary study

    Energy Technology Data Exchange (ETDEWEB)

    Chae, Hee Dong; Lee, Jae Young; Han, Joon Koo [Dept. of Radiology and Institute of Radiation Medicine, Seoul National University College of Medicine, Clinical Research Institute, Seoul National University Hospital, Seoul (Korea, Republic of); Jang, Jin Young; Kang, Mee Joo [Div. of Hepatobiliary-Pancreatic Surgery, Department of Surgery, Seoul National University College of Medicine, Seoul (Korea, Republic of); Chang, Jin Ho; Kang, Jeeun [Sogang University, Seoul (Korea, Republic of)

    2017-09-15

    To investigate the feasibility of ex vivo multispectral photoacoustic (PA) imaging in differentiating cholesterol versus neoplastic polyps, and benign versus malignant polyps, of the gallbladder. A total of 38 surgically confirmed gallbladder polyps (24 cholesterol polyps, 4 adenomas, and 10 adenocarcinomas) from 38 patients were prospectively included in this study. The surgical specimens were set on a gel pad immersed in a saline-filled container. The PA intensities of polyps were then measured, using two separate wavelength intervals (421–647 nm and 692–917 nm). Mann-Whitney U test was performed for the comparison of normalized PA intensities between the cholesterol and neoplastic polyps, and between the benign and malignant polyps. Kruskal-Wallis test was conducted for the comparison of normalized PA intensities among the cholesterol polyps, adenomas, and adenocarcinomas. A significant difference was observed in the normalized PA intensities between the cholesterol and neoplastic polyps at 459 nm (median, 1.00 vs. 0.73; p = 0.032). Comparing the benign and malignant polyps, there were significant differences in the normalized PA intensities at 765 nm (median, 0.67 vs. 0.78; p = 0.013), 787 nm (median, 0.65 vs. 0.77; p = 0.034), and 853 nm (median, 0.59 vs. 0.85; p = 0.028). The comparison of the normalized PA intensities among cholesterol polyps, adenomas, and adenocarcinomas demonstrated marginally significant differences at 765 nm (median, 0.67 vs. 0.66 vs. 0.78, respectively; p = 0.049). These preliminary results indicate that benign versus malignant gallbladder polyps might exhibit different spectral patterns on multispectral PA imaging.

  17. The Multidisciplinary Approach to GI Cancer Results in Change of Diagnosis and Management of Patients. Multidisciplinary Care Impacts Diagnosis and Management of Patients.

    Science.gov (United States)

    Meguid, Cheryl; Schulick, Richard D; Schefter, Tracey E; Lieu, Christopher H; Boniface, Megan; Williams, Nicole; Vogel, Jon D; Gajdos, Csaba; McCarter, Martin; Edil, Barish H

    2016-11-01

    The multidisciplinary approach to GI cancer is becoming more widespread as a result of multimodality therapy. At the University of Colorado Hospital (UCH), we utilize a formal multidisciplinary approach through specialized clinics across a variety of settings, including pancreas and biliary cancer, esophageal and gastric cancer, liver cancer and neuroendocrine tumors (NET), and colorectal cancer. Patients with these suspected diagnoses are seen in a multidisciplinary clinic. We evaluated whether implementation of disease-specific multidisciplinary programs resulted in a change in diagnosis and/or change in management for these patients. Data from 1747 patients were prospectively collected from inception of each multidisciplinary program through December 31, 2015. Change in diagnosis was defined as a change in radiographic or endoscopic findings that resulted in a change in cancer stage or clinical diagnosis and/or a change in pathologic diagnosis. Reports of incidental findings unrelated to primary diagnosis on radiographic evaluation were also assessed, but not included in overall change in diagnosis findings. We further evaluated if patients had a change in the management of their disease compared with outside recommendations. Of 1747 patients evaluated, change occurred in 38 % (pancreas and biliary), 13 % (esophageal and gastric); 22 % (liver and NET), and 16 % (colorectal). Change in management for each multidisciplinary program occurred in 35 % (pancreas and biliary), 20 % (esophageal and gastric), 27 % (liver and NET), and 13 % (colorectal). The use of a multidisciplinary clinic to manage GI cancer has a substantial impact in change in diagnosis and/or management in more than one-third of patients evaluated.

  18. Content Design and System Implementation of a Teleophthalmology System for Eye Disease Diagnosis and Treatment and Its Preliminary Practice in Guangdong, China.

    Science.gov (United States)

    Xiao, Di; Vignarajan, Janardhan; Chen, Tingting; Ye, Tiantian; Xiao, Baixiang; Congdon, Nathan; Kanagasingam, Yogessan

    2017-12-01

    We have developed a new telemedicine system for comprehensive eye examination, diabetic retinopathy (DR) screening, and eye disease diagnosis and treatment. The novel points of the system include a tablet application for facilitating doctor's examination and diagnosis process, a comprehensive eye examination component, and integrated treatment planning and recording. The system provided a new service model through one ophthalmological center linking with multiple remote and rural hospitals for eye care in Guangdong province, China. The early stage of the project study also undertook the responsibility of educations for remote-area doctors and image graders for DR grading and glaucoma grading and research on the effectiveness of short message service (SMS) reminder for patient revisit. Some other research, such as the comparison of the accuracy of graders' DR grading with the gold standard, and doctor's tentative diagnosis with final diagnosis and related statistical information, has been implemented in the system. In the preliminary practice, we summarized the outcomes related to presenting system performance and made an initial analysis. From the practice, the project has shown the telemedicine system and associated contents have satisfied our initial goal and demonstrated their effectiveness and efficiency.

  19. Spinel dissolution via addition of glass forming chemicals. Results of preliminary experiments

    Energy Technology Data Exchange (ETDEWEB)

    Fox, K. M. [Savannah River Site (SRS), Aiken, SC (United States); Johnson, F. C. [Savannah River Site (SRS), Aiken, SC (United States)

    2015-11-01

    Increased loading of high level waste in glass can lead to crystallization within the glass. Some crystalline species, such as spinel, have no practical impact on the chemical durability of the glass, and therefore may be acceptable from both a processing and a product performance standpoint. In order to operate a melter with a controlled amount of crystallization, options must be developed for remediating an unacceptable accumulation of crystals. This report describes preliminary experiments designed to evaluate the ability to dissolve spinel crystals in simulated waste glass melts via the addition of glass forming chemicals (GFCs).

  20. In vitro and in vivo preliminary results on Spirulina platensis for ...

    African Journals Online (AJOL)

    user

    2013-05-01

    May 1, 2013 ... Impetigo is a highly infectious superficial bacterial disease, most common among pre-school children. Applying 11 antimicrobial .... diagnosis of skin lesions in clinical samples, was based on the presence of > 105 colony .... physician's evaluation, patient's opinion and digital image analysis of standardized ...

  1. Preliminary Results of Ancillary Safety Analyses Supporting TREAT LEU Conversion Activities

    Energy Technology Data Exchange (ETDEWEB)

    Brunett, A. J. [Argonne National Lab. (ANL), Argonne, IL (United States); Fei, T. [Argonne National Lab. (ANL), Argonne, IL (United States); Strons, P. S. [Argonne National Lab. (ANL), Argonne, IL (United States); Papadias, D. D. [Argonne National Lab. (ANL), Argonne, IL (United States); Hoffman, E. A. [Argonne National Lab. (ANL), Argonne, IL (United States); Kontogeorgakos, D. C. [Argonne National Lab. (ANL), Argonne, IL (United States); Connaway, H. M. [Argonne National Lab. (ANL), Argonne, IL (United States); Wright, A. E. [Argonne National Lab. (ANL), Argonne, IL (United States)

    2015-10-01

    Report (FSAR) [3]. Depending on the availability of historical data derived from HEU TREAT operation, results calculated for the LEU core are compared to measurements obtained from HEU TREAT operation. While all analyses in this report are largely considered complete and have been reviewed for technical content, it is important to note that all topics will be revisited once the LEU design approaches its final stages of maturity. For most safety significant issues, it is expected that the analyses presented here will be bounding, but additional calculations will be performed as necessary to support safety analyses and safety documentation. It should also be noted that these analyses were completed as the LEU design evolved, and therefore utilized different LEU reference designs. Preliminary shielding, neutronic, and thermal hydraulic analyses have been completed and have generally demonstrated that the various LEU core designs will satisfy existing safety limits and standards also satisfied by the existing HEU core. These analyses include the assessment of the dose rate in the hodoscope room, near a loaded fuel transfer cask, above the fuel storage area, and near the HEPA filters. The potential change in the concentration of tramp uranium and change in neutron flux reaching instrumentation has also been assessed. Safety-significant thermal hydraulic items addressed in this report include thermally-induced mechanical distortion of the grid plate, and heating in the radial reflector.

  2. Preliminary Results of Seismic Refraction/Reflection Experiment in Northwestern Nevada and Northeastern California

    Science.gov (United States)

    Colgan, J. P.; Lerch, D. L.; Gashawbeza, E. M.; Wilson, C. K.; Klemperer, S. L.; Miller, E. L.

    2004-12-01

    to measure crustal S-wave splitting (PmS phase) from the active source experiment as an indicator of crustal anisotropy resulting from lower crustal flow. We may also detect differences in direct-S travel times using the SV and SH modes of the T-Rex vibrator from the same vibration location. 4) A 16-km high-resolution (40 m receiver spacing) reflection profile across Surprise Valley, CA. This experiment will test the capabilities of the T-Rex vibrator for shallow, high-resolution P and S-wave imaging in a low-cost experiment, and should yield geologically useful information on the depth of basin fill in Surprise Valley above the recently active Surprise Valley fault. We present preliminary data from our experiment and discuss their implications both for regional tectonics, and as a potential model for future EarthScope/NEES collaborations.

  3. Preliminary deformation results to 12 GPa pressure using the Deformation-DIA

    Science.gov (United States)

    Mei, S.; Li, L.; Durham, W. B.; Wang, Y.; Uchita, T.; Getting, I. C.; Vaughan, M. T.; Weidner, D. J.; Burnley, P.

    2002-12-01

    High-pressure studies of the rheological behavior of Earth materials under high pressures are essential for understanding the dynamics of Earth's interior. However, outside of shock experiments and those in the diamond anvil cell, the highest working pressure for conventional deformation rigs (e.g., triaxial gas-medium apparatus, Griggs solid-medium apparatus) has been about 4 GPa. We report here first results from a new deformation apparatus called the deformation-DIA (D-DIA), a cubic-anvil, solid-medium apparatus specifically designed for constant-pressure deformation and capable of deforming samples at high temperatures (up to 2000 K) to pressures up to 15 GPa. Based on the cubic DIA apparatus, the D-DIA allows independent motion of the two vertical anvils to impose deformation on samples, and at the same time allows reverse motion on the four side anvils, thus preventing pressure from rising during deformation. Preliminary tests have been conducted on samples of NaCl, MgO, and olivine. The cold-pressed samples (1-2 mm in length and 1.2 mm in diameter), hard alumina pistons, and thermocouples form a 6-mm-long deformation column that is inserted into a graphite resistance heater within a 6-mm edge length cubic pressure medium, either pyrophyllite or boron epoxy. The cell is first squeezed hydrostatically to reach desired pressures and then deformed in compression at constant pressure. Experiments are carried out using synchrotron radiation, which makes it possible to measure sample length change and pressure in-situ to levels of x 10-5 to 4 x 10-4 s-1 over shortening strains of 10 - 30% at temperatures of 500 - 1200°C and pressures of 5 - 12 GPa. Pressure is monitored by the location of diffraction peaks of a small amount of well-characterized proxy material (often MgO) in the deformation column. Pressure is controlled manually by metering hydraulic fluid from the main ram (which drives the side anvils) at a rate such that diffraction pattern holds constant as

  4. Preliminary Results from the iMUSH Active Source Seismic Experiment

    Science.gov (United States)

    Levander, Alan; Kiser, Eric; Palomeras, Imma; Zelt, Colin; Schmandt, Brandon; Hansen, Steve; Harder, Steven; Creagar, Kenneth; Vidale, John; Abers, Geoffrey

    2015-04-01

    iMUSH (imaging Magma Under Saint Helens) is a US NSF sponsored multi-disciplinary investigation of Mount Saint Helens (MSH), currently the most active volcano in the Cascades arc in the northwestern United States. The project consists of active and passive seismic experiments, extensive magnetotelluric sounding, and geological/geochemical studies involving scientists at 7 institutions in the U.S. and Europe. The long-term goal of the seismic project is to combine analysis of the active source data with that of data from the 70 element broadband seismograph operating from summer 2014 until 2016. Combining seismic and MT analyses with other data, we hope to image the MSH volcanic plumbing system from the surface to the subducting Juan de Fuca slab. Here we describe preliminary results of the iMUSH active source seismic experiment, conducted in July and August 2014. The active source experiment consisted of twenty-three 454 or 908 kg weight shots recorded by ~3500 seismographs deployed at ~6,000 locations. Of these instruments, ~900 Nodal Seismic instruments were deployed continuously for two weeks in an areal array within 10 km of the MSH summit. 2,500 PASSCAL Texan instruments were deployed twice for five days in 3 areal arrays and 2 dense orthogonal linear arrays that extended from MSH to distances > 80 km. Overall the data quality from the shots is excellent. The seismograph arrays also recorded dozens of micro-earthquakes beneath the MSH summit and along the MSH seismic zone, and numerous other local and regional earthquakes. In addition, at least one low frequency event beneath MSH was recorded during the experiment. At this point we have begun various types of analysis of the data set: We have determined an average 1D Vp structure from stacking short-term/long-term average ratios, we have determined the 2-D Vp structure from ray-trace inversions along the two orthogonal profiles (in the NW-SE and NE-SW directions), and we have made low-fold CMP stacks of the

  5. Preliminary results on quaternary studies from Bajestan Basin (Kavir-e Namak), Iran

    Science.gov (United States)

    Majid Padashi, Seyed; Büdel, Christian; Ullmann, Tobias; Tintrup, Angela; Baumhauer, Roland

    2017-04-01

    The increasing population and demand for developing infrastructures on the one hand, and the recent issues on water and air quality on the other hand, in addition to droughts and the shrinking of many wetlands and lakes, have encouraged Iran recently to invest more in palaeoenvironmental research - specifically on quaternary basins. Preliminary results of our study through field work, satellite imagery processing, SRTM data analysis and drilling, have created new insights on the Iranian playas and the history of the lakes. A combined geological and geomorphological approach for studying young lakes and playas of Iran has led to the identification of at least five major types of lakes and playas in different parts of Iran; for example the Bajestan basin which ranks the second biggest playa of Iran, is placed in the edge of the central Iranian microplate and Lut structural block. The Bajestan Playa (Kavir-e Namak) is surrounded by cretaceous limestones in the south and Paleozoic formations in the north. The basin comprises several kinds of quaternary deposits including sand dunes and Aeolian deposits, fluvial sediments, alluvial fans and lake sediments. The aeolian activity in the basin is primarily shaping landforms in the southwest and the north of the area. The major fluvial activity is considered to be driven from east and south of the playa. The integration of field observations and data derived from the analysis of SRTM digital elevation model (90m) and Landsat satellite imagery shows that the major part of the playa has flat slope. In addition, the morphometric assessment and the hydrological modelling showed that the major current alluvial channels have SW/NE trend with the highest density and intensity of activity in south west of the basin. The major alluvial deposits in the north and south of the playa represent a dissimilar geomorphology. While the northern part of the basin, from the rock unit outcrops to the edge of playa, is occupied by a narrow

  6. Preliminary Flight Results of the Microelectronics and Photonics Test Bed: NASA DR1773 Fiber Optic Data Bus Experiment

    Science.gov (United States)

    Jackson, George L.; LaBel, Kenneth A.; Marshall, Cheryl; Barth, Janet; Seidleck, Christina; Marshall, Paul

    1998-01-01

    NASA Goddard Spare Flight Center's (GSFC) Dual Rate 1773 (DR1773) Experiment on the Microelectronic and Photonic Test Bed (MPTB) has provided valuable information on the performance of the AS 1773 fiber optic data bus in the space radiation environment. Correlation of preliminary experiment data to ground based radiation test results show the AS 1773 bus is employable in future spacecraft applications requiring radiation tolerant communication links.

  7. Preliminary Modelling Results for an Otto Cycle/Stirling Cycle Hybrid-engine-based Power Generation System

    OpenAIRE

    Cullen, Barry; McGovern, Jim; Feidt, Michel; Petrescu, Stoian

    2009-01-01

    This paper presents preliminary data and results for a system mathematical model for a proposed Otto Cycle / Stirling Cycle hybrid-engine-based power generation system. The system is a combined cycle system with the Stirling cycle machine operating as a bottoming cycle on the Otto cycle exhaust. The application considered is that of a stationary power generation scenario wherein the Stirling cycle engine operates as a waste heat recovery device on the exhaust stream of the Otto cycle engine. ...

  8. Continuous adductor-canal-blockade for adjuvant post-operative analgesia after major knee surgery: preliminary results

    DEFF Research Database (Denmark)

    Lund, J; Jenstrup, M T; Jæger, P

    2011-01-01

    Because both the saphenous nerve and in part the obturator nerve are traversing the adductor canal of the thigh, we hypothesised that repeated administration of a local anaesthetic (LA) into this aponeurotic space could be a useful option for post-operative analgesia after knee replacement surgery......-canal-blockade may be a valuable adjunct for post-operative analgesia after major knee surgery. These preliminary results should be confirmed in randomised, controlled trials....

  9. Preliminary results of ecotoxicological assessment of an Acid Mine Drainage (AMD) passive treatment system testing water quality of depurated lixiviates

    OpenAIRE

    Miguel Sarmiento, Aguasanta; Bonnail, Estefanía; Nieto Liñán, José Miguel; Valls Casillas, Tomás Ángel del

    2017-01-01

    The current work reports on the preliminary results of a toxicity test using screening experiments to check the efficiency of an innovative passive treatment plant designed for acid mine drainage purification. Bioassays took place with water samples before and after the treatment system and in the river, once treated water is discharged. Due to the high toxicity of the water collected at the mouth of the mine (before the treatment plant), the bioassay was designed and developed with respect t...

  10. Enhanced sensory re-learning after nerve repair using 3D audio-visual signals and kinaesthesia--preliminary results.

    Science.gov (United States)

    Schmidhammer, R; Hausner, T; Kröpfl, A; Huber, W; Hopf, R; Leixnering, M; Herz, H; Redl, H

    2007-01-01

    Sensory re-learning methods and basics on cortical reorganization after peripheral nerve lesion are well documented. The aim of enhanced sensory re-learning using 3D audio-visual signals and kinaesthetic training is the augmentation of cognitive memory (visual and acoustic sensory memory) and cognitive function for the improvement of cerebral plasticity processes and starts as soon as possible after nerve repair. Preliminary results are shown.

  11. Imaging-based surrogate markers of transcriptome subclasses and signatures in hepatocellular carcinoma. Preliminary results

    Energy Technology Data Exchange (ETDEWEB)

    Taouli, Bachir [Icahn School of Medicine at Mount Sinai, Department of Radiology, New York, NY (United States); Icahn School of Medicine at Mount Sinai, Translational and Molecular Imaging Institute, New York, NY (United States); Icahn School of Medicine at Mount Sinai, Liver Cancer Program, Tisch Cancer Institute, New York, NY (United States); Hoshida, Yujin; Chen, Xintong; Sun, Xiaochen; Kojima, Kensuke; Toffanin, Sara; Hirschfield, Hadassa [Icahn School of Medicine at Mount Sinai, Liver Cancer Program, Tisch Cancer Institute, New York, NY (United States); Icahn School of Medicine at Mount Sinai, Division of Liver Diseases, Department of Medicine, New York, NY (United States); Kakite, Suguru [Icahn School of Medicine at Mount Sinai, Translational and Molecular Imaging Institute, New York, NY (United States); Tottori University, Division of Radiology, Department of Pathophysiological and Therapeutic Science, Faculty of Medicine, Yonago City (Japan); Tan, Poh Seng [Icahn School of Medicine at Mount Sinai, Liver Cancer Program, Tisch Cancer Institute, New York, NY (United States); Icahn School of Medicine at Mount Sinai, Division of Liver Diseases, Department of Medicine, New York, NY (United States); National University Health System, Division of Gastroenterology and Hepatology, University Medicine Cluster, Singapore (Singapore); Kihira, Shingo [Icahn School of Medicine at Mount Sinai, Department of Radiology, New York, NY (United States); Fiel, M.I. [Icahn School of Medicine at Mount Sinai, Department of Pathology, New York, NY (United States); Wagner, Mathilde [Icahn School of Medicine at Mount Sinai, Translational and Molecular Imaging Institute, New York, NY (United States); Sorbonne Universites, UPMC, Department of Radiology, Hopital Pitie-Salpetriere, Paris (France); Llovet, Josep M. [Icahn School of Medicine at Mount Sinai, Liver Cancer Program, Tisch Cancer Institute, New York, NY (United States); Icahn School of Medicine at Mount Sinai, Division of Liver Diseases, Department of Medicine, New York, NY (United States); Universitat de Barcelona, HCC Translational Research Laboratory, Barcelona-Clinic Liver Cancer Group Institut d' Investigacions Biomediques August Pi i Sunyer (IDIBAPS), Hospital Clinic de Barcelona, Barcelona (Spain); Institucio Catalana de Recerca i Estudis Avancats, Barcelona (Spain)

    2017-11-15

    In this preliminary study, we examined whether imaging-based phenotypes are associated with reported predictive gene signatures in hepatocellular carcinoma (HCC). Thirty-eight patients (M/F 30/8, mean age 61 years) who underwent pre-operative CT or MR imaging before surgery as well as transcriptome profiling were included in this IRB-approved single-centre retrospective study. Eleven qualitative and four quantitative imaging traits (size, enhancement ratios, wash-out ratio, tumour-to-liver contrast ratios) were assessed by three observers and were correlated with 13 previously reported HCC gene signatures using logistic regression analysis. Thirty-nine HCC tumours (mean size 5.7 ± 3.2 cm) were assessed. Significant positive associations were observed between certain imaging traits and gene signatures of aggressive HCC phenotype (G3-Boyault, Proliferation-Chiang profiles, CK19-Villanueva, S1/S2-Hoshida) with odds ratios ranging from 4.44-12.73 (P <0.045). Infiltrative pattern at imaging was significantly associated with signatures of microvascular invasion and aggressive phenotype. Significant but weak associations were also observed between each enhancement ratio and tumour-to-liver contrast ratios and certain gene expression profiles. This preliminary study demonstrates a correlation between phenotypic imaging traits with gene signatures of aggressive HCC, which warrants further prospective validation to establish imaging-based surrogate markers of molecular phenotypes in HCC. (orig.)

  12. Cast Stone Oxidation Front Evaluation: Preliminary Results For Samples Exposed To Moist Air

    Energy Technology Data Exchange (ETDEWEB)

    Langton, C. A.; Almond, P. M.

    2013-11-26

    The rate of oxidation is important to the long-term performance of reducing salt waste forms because the solubility of some contaminants, e.g., technetium, is a function of oxidation state. TcO{sub 4}{sup -} in the salt solution is reduced to Tc(IV) and has been shown to react with ingredients in the waste form to precipitate low solubility sulfide and/or oxide phases. Upon exposure to oxygen, the compounds containing Tc(IV) oxidize to the pertechnetate ion, Tc(VII)O{sub 4}{sup -}, which is very soluble. Consequently the rate of technetium oxidation front advancement into a monolith and the technetium leaching profile as a function of depth from an exposed surface are important to waste form performance and ground water concentration predictions. An approach for measuring contaminant oxidation rate (effective contaminant specific oxidation rate) based on leaching of select contaminants of concern is described in this report. In addition, the relationship between reduction capacity and contaminant oxidation is addressed. Chromate (Cr(VI) was used as a non-radioactive surrogate for pertechnetate, Tc(VII), in Cast Stone samples prepared with 5 M Simulant. Cast Stone spiked with pertechnetate was also prepared and tested. Depth discrete subsamples spiked with Cr were cut from Cast Stone exposed to Savannah River Site (SRS) outdoor ambient temperature fluctuations and moist air. Depth discrete subsamples spiked with Tc-99 were cut from Cast Stone exposed to laboratory ambient temperature fluctuations and moist air. Similar conditions are expected to be encountered in the Cast Stone curing container. The leachability of Cr and Tc-99 and the reduction capacities, measured by the Angus-Glasser method, were determined for each subsample as a function of depth from the exposed surface. The results obtained to date were focused on continued method development and are preliminary and apply to the sample composition and curing / exposure conditions described in this report. The

  13. Preliminary results of neural networks and zernike polynomials for classification of videokeratography maps.

    Science.gov (United States)

    Carvalho, Luis Alberto

    2005-02-01

    negative)/total number of cases]. The mean values for these parameters were, respectively, 78.75, 97.81, and 94%. Although we have used a relatively small training and testing set, results presented here should be considered promising. They are certainly an indication of the potential of Zernike polynomials as reliable parameters, at least in the cases presented here, as input data for artificial intelligence automation of the diagnosis process of videokeratography examinations. This technique should facilitate the implementation and add value to the classification methods already available. We also discuss briefly certain special properties of Zernike polynomials that are what we think make them suitable as NN inputs for this type of application.

  14. Potential of the Galaxy from the Besançon galaxy model including non-axisymmetric components: Preliminary results

    Science.gov (United States)

    Fernández-Trincado, J. G.; Robin, A. C.; Bienaymé, O.; Reylé, C.; Valenzuela, O.; Pichardo, B.

    2014-07-01

    In this contributed poster we present a preliminary attempt to compute a non-axisymmetric potential together with previous axisymmetric potential of the Besançon galaxy model. The contribution by non-axisymmetric components are modeled by the superposition of inhomogeneous ellipsoids to approximate the triaxial bar and superposition of homogeneous oblate spheroids for a stellar halo, possibly triaxial. Finally, we have computed the potential and force field for these non-axisymmetric components in order to constraint the total mass of the Milky Way. We present preliminary results for the rotation curve and the contribution of the bar to it. This approach will allow future studies of dynamical constraints from comparisons of kinematical simulations with upcoming surveys such as RAVE, BRAVA, APOGEE, and GAIA in the near future. More details, are presented in https://gaia.ub.edu/Twiki/pub/GREATITNFC/ProgramFinalconference/Poster_JG.Fern%e1ndez.pdf.

  15. Diagnosing cancer in primary care: results from the National Cancer Diagnosis Audit

    Science.gov (United States)

    Swann, Ruth; McPhail, Sean; Witt, Jana; Shand, Brian; Abel, Gary A; Hiom, Sara; Rashbass, Jem; Lyratzopoulos, Georgios; Rubin, Greg

    2018-01-01

    Background Continual improvements in diagnostic processes are needed to minimise the proportion of patients with cancer who experience diagnostic delays. Clinical audit is a means of achieving this. Aim To characterise key aspects of the diagnostic process for cancer and to generate baseline measures for future re-audit. Design and setting Clinical audit of cancer diagnosis in general practices in England. Method Information on patient and tumour characteristics held in the English National Cancer Registry was supplemented by information from GPs in participating practices. Data items included diagnostic timepoints, patient characteristics, and clinical management. Results Data were collected on 17 042 patients with a new diagnosis of cancer during 2014 from 439 practices. Participating practices were similar to non-participating ones, particularly regarding population age, urban/rural location, and practice-based patient experience measures. The median diagnostic interval for all patients was 40 days (interquartile range [IQR] 15–86 days). Most patients were referred promptly (median primary care interval 5 days [IQR 0–27 days]). Where GPs deemed diagnostic delays to have occurred (22% of cases), patient, clinician, or system factors were responsible in 26%, 28%, and 34% of instances, respectively. Safety netting was recorded for 44% of patients. At least one primary care-led investigation was carried out for 45% of patients. Most patients (76%) had at least one existing comorbid condition; 21% had three or more. Conclusion The findings identify avenues for quality improvement activity and provide a baseline for future audit of the impact of 2015 National Institute for Health and Care Excellence guidance on management and referral of suspected cancer. PMID:29255111

  16. Robot-assisted posterior retroperitoneoscopic adrenalectomy using single-port access: technical feasibility and preliminary results.

    Science.gov (United States)

    Park, Jae Hyun; Kim, Soo Young; Lee, Cho-Rok; Park, Seulkee; Jeong, Jun Soo; Kang, Sang-Wook; Jeong, Jong Ju; Nam, Kee-Hyun; Chung, Woong Youn; Park, Cheong Soo

    2013-08-01

    Posterior retroperitoneoscopic adrenalectomy (PRA) has several benefits compared with transperitoneal adrenalectomy in that it is safe and has a short learning curve. In addition, it provides direct short access to the target organ, prevents irritation to the intraperitoneal space, and does not require retraction of adjacent organs.1 (-) 3 We have performed several cases of robot-assisted PRA using single-port access for small adrenal tumors. This multimedia article introduces the detailed methods and preliminary results of this procedure. Five patients underwent single-port robot-assisted PRA between March 2010 and June 2011 at our institution. During the procedure, patients were placed in a prone jackknife position with their hip joints bent at a right angle (Fig. 1). A 3 cm transverse skin incision was made just below the lowest tip of the 12th rib (Fig. 2), and the Glove port (Nelis, Kyung-gi, Korea) was placed through the skin incision while maintaining pneumoretroperitoneum (Fig. 3). CO2 was then insufflated to a pressure of 18 mm Hg to create an adequate working space. A 10 mm robotic camera with a 30-degree up view was placed at the center of the incision through the most cephalic portion of the Glove port. A Maryland dissector or Prograsp forceps (Intuitive Surgical, Inc., Sunnyvale, CA) was placed on the medial side of the incision, and Harmonic curved shears (Intuitive Surgical) were placed on the lateral side of the incision (Fig. 4). Using the Maryland dissector and the harmonic curved shears, the Gerota fascia is opened, perinephric fat is dissected, and the kidney upper pole is mobilized to expose the adrenal gland (Fig. 5). Gland dissection starts with lower margin detachment from the upper kidney pole in a lateral to medial direction (Fig. 6). After dissecting the adrenal gland from surrounding adipose tissue and medial isolation of the adrenal central vein, the vessel is ligated with a 5 mm hemolock clip (Fig. 7). Patient

  17. Prospective evaluation of multiparametric ultrasound and quantitative elastosonography in the differential diagnosis of benign and malignant thyroid nodules: Preliminary experience

    Energy Technology Data Exchange (ETDEWEB)

    Cantisani, Vito, E-mail: vito.cantisani@uniroma1.it [Department of Radiology, Oncology, and Anatomy Pathology, University “La Sapienza”, Policlinico Umberto I, Rome, Itlay (Italy); D’Andrea, Vito [Department of Surgical Sciences, University “La Sapienza”, Rome (Italy); Biancari, Fausto [Department of Surgery, Oulu University Hospital, Oulu (Finland); Medvedyeva, Olena; Di Segni, Mattia; Olive, Matteo [Department of Radiology, Oncology, and Anatomy Pathology, University “La Sapienza”, Policlinico Umberto I, Rome, Itlay (Italy); Patrizi, Gregorio; Redler, Adriano; De Antoni E, Enrico [Department of Surgical Sciences, University “La Sapienza”, Rome (Italy); Masciangelo, Raffaele [Department of Hygiene and Infectious Disease, University “La Sapienza”, Rome (Italy); Frezzotti, Francesca [Department of Surgical Sciences, University “La Sapienza”, Rome (Italy); Ricci, Paolo [Department of Radiology, Oncology, and Anatomy Pathology, University “La Sapienza”, Policlinico Umberto I, Rome, Itlay (Italy)

    2012-10-15

    Purpose: To assess the clinical value of quantitative elastosonography compared with multiparametric ultrasound in differentiating the nature of thyroid nodules. Methods and materials: Ninety-seven consecutive patients (32 males, 65 females, mean age, 54 years, range 20–81 years) with thyroid nodules previously detected at color-Doppler ultrasound (CDUS), were prospectively examined with elastosonography with dedicated quantitative software (Elasto-Q, Toshiba) before surgery. Ultrasound examination and elastosonography were evaluated by two investigators in consensus. US features, color-Doppler pattern, and strain ratio value were evaluated. Sensitivity and specificity of CDUS and sono-elastography were compared using X{sup 2} test and ROC curves. Results: Sensitivity and specificity of hypoechogenicity, irregular margins or suspicious halo features, CDUS blood flow pattern, and strain ratio in the diagnosis of malignant nodules were 56.8%, 62.2%, 54.1% and 97.3% and 71.7%, 93.3%, 28.3%, and 91.7%, respectively. Elastosonography was more sensitive and specific than all ultrasonographic features in predicting malignancy of the thyroid nodules (p < 0.0001). According to elastosonographic features the lesions characterized by strain ratio ≥2 were highly likely to be of malignant nature (p < 0.0001, O.R. 396, 95%, CI: 44–3530). Conclusions: The results of the present study suggest that elastosonography with Q system is a valuable tool in the characterization of thyroid nodules and it seems to be far more accurate than CDUS. These findings as well as those of previous studies support its use in selecting patients who are candidates for surgery.

  18. Performance of Small Bore 60NiTi Hybrid Ball Bearings: Preliminary Life Test Results

    Science.gov (United States)

    Dellacorte, Christopher; Howard, S. Adam

    2016-01-01

    Small bore (R8 size) hybrid ball bearings made with 60NiTi races and silicon nitride balls are under development for highly corrosive aerospace applications that are also exposed to heavy static (shock) loads. The target application is the vacuum pump used inside the wastewater recycling system on the International Space Station. To verify bearing longevity, life tests are run at 2000rpm for time periods up to 5000 hours. Accelerometers with data tracking are used to monitor operation and the bearings are disassembled and inspected at intervals to assess wear. Preliminary tests show that bearings made from 60NiTi are feasible for this aerospace and potentially other industrial applications that must endure similar operating environments.

  19. Neuro-Cognitive Intervention for Working Memory: Preliminary Results and Future Directions.

    Science.gov (United States)

    Bree, Kathleen D; Beljan, Paul

    2016-01-01

    Definitions of working memory identify it as a function of the executive function system in which an individual maintains two or more pieces of information in mind and uses that information simultaneously for some purpose. In academics, working memory is necessary for a variety of functions, including attending to the information one's teacher presents and then using that information simultaneously for problem solving. Research indicates difficulties with working memory are observed in children with mathematics learning disorder (MLD) and reading disorders (RD). To improve working memory and other executive function difficulties, and as an alternative to medication treatments for attention and executive function disorders, the Motor Cognition(2)® (MC(2)®)program was developed. Preliminary research on this program indicates statistically significant improvements in working memory, mathematics, and nonsense word decoding for reading. Further research on the MC(2)® program and its impact on working memory, as well as other areas of executive functioning, is warranted.

  20. CEM V based special cementitious materials investigated by means of SANS method. Preliminary results

    Science.gov (United States)

    Dragolici, A. C.; Balasoiu, M.; Orelovich, O. L.; Ionascu, L.; Nicu, M.; Soloviov, D. V.; Kuklin, A. I.; Lizunov, E. I.; Dragolici, F.

    2017-05-01

    The management of the radioactive waste assume the conditioning in a cement matrix as an embedding, stable, disposal material. Cement matrix is the first and most important engineering barrier against the migration in the environment of the radionuclides contained in the waste packages. Knowing how the microstructure develops is therefore desirable in order to assess the compatibility of radioactive streams with cement and predict waste form performance during storage and disposal. For conditioning wastes containing radioactive aluminum new formulas of low basicity cements, using coatings as a barrier between the metal and the conditioning environment or introducing a corrosion inhibitor in the matrix system are required. Preliminary microstructure investigation of such improved CEM V based cement matrix is reported.

  1. Preliminary results of proton beam irradiation of macular and paramacular melanomas

    International Nuclear Information System (INIS)

    Gragoudas, E.S.; Seddon, J.; Goitein, M.

    1984-01-01

    Proton beam irradiation has been used for the treatment of 60 eyes with choroidal melanomas located 3mm or less from the fovea. The average follow-up period was 18 months. 86% of the treated lesions showed regression at the time of this analysis, and the 14% that did not were followed up for less than a year. Visual acuity remained the same in 47% of the treated eyes, improved in 20%, and deteriorated in 33%. 58% of the treated eyes had visual acuity of 20/100 or better at the last follow-up examination. Radiation vasculopathy with macular oedema was the most common complication, and it was observed in 22% of the treated eyes. These preliminary observations suggest that proton beam irradiation may be a reasonable alternative to enucleation even for this group of choroidal melanomas, which is considered unfavourable in respect of the preservation of visual function. (author)

  2. Direction finding of night-time whistlers at very low latitudes in China - Preliminary results

    Science.gov (United States)

    Xu, J. S.; Tian, M.; Tang, C. C.; Hayakawa, M.; Ohta, K.; Shimakura, S.

    1989-09-01

    Simultaneous direction finding measurements of equatorial latitude whistlers have been performed in January 1988 at three stations in China, including Zhanjiang (geomagnetic latitude 10.0 deg N), Guilin (14.1 deg), and Wuchang (19.4 deg). The preliminary analyses for a particular day have shown experimentally that there is a single-valued dispersion value (D = 10.5 sq rt s) for nighttime whistlers at the three stations and that their ionospheric exit region is located just in the zenith of Zhanjiang, with an approximately right-handed circular polarization. This finding lends strong evidence to a previous implication, inferred from the simultaneous multistation network, that there is a preferred propagation channel at a geomagnetic latitude aroung 10 deg.

  3. Preliminary test results and CFD analysis for moderator circulation test at Korea

    International Nuclear Information System (INIS)

    Kim, H.T.; Im, S.H.; Sung, H.J.; Seo, H.; Bang, I.C.

    2014-01-01

    Korea Atomic Energy Research Institute (KAERI) is carrying out a scaled-down moderator test program to simulate the CANDU6 moderator circulation phenomena during steady state operation and accident conditions. This research program includes the construction of the Moderator Circulation Test (MCT) facility, production of the validation data for self-reliant CFD tools, and development of optical measurement system using the Particle Image Velocimetry (PIV). The MCT facility includes a primary circulation loop (pipe lines, a primary side pump, a heat exchanger, valves, flow meters) and a secondary side loop (pipe lines, a secondary side pump, and an external cooling tower). The loop leakage test and non-heating test are performed in the present work. In the present work the PIV technique is used to measure the velocity distributions in the scaled moderator tank of MCT under iso-thermal test conditions. The preliminary PIV measurement data are obtained and compared with CFX code predictions. (author)

  4. Incidence of DWI-positive stroke in patients with vertigo of unclear etiology, preliminary results.

    Science.gov (United States)

    Leker, Ronen R; Hur, Tamir Ben; Gomori, John M; Paniri, R; Eichel, Roni; Cohen, Jose E

    2013-03-01

    Acute vertigo may be secondary to stroke or to non-ischemic causes. Accurate identification of vertigo secondary to ischemia may lead to appropriate timely intervention that can minimize stroke-related damage and can help in tailoring the most appropriate individual therapy for affected patients. Diffusion weighted MRI (DWI) is very accurate for diagnosing stroke and we therefore aimed to test whether it can aid in making a correct diagnosis of vertigo secondary to stroke. All patients presenting with vertigo in which the diagnosis of stroke was considered underwent DWI only MRI. Data regarding the symptoms and neurological deficits, vascular risk factors, imaging findings, and outcomes was accrued. Patients with stroke on DWI were compared with those without ischemia. Between June 2010 and August 2011, 28 patients fulfilling the entry criteria were identified with a mean age of 62·2±12·8 (60% male). The final diagnosis was stroke in 11 patients (39%). Patients with stroke did not differ from those without stroke in their risk factor profile. However, patients with stroke more often tended to present with vertigo accompanied by other neurological symptoms (73% versus 12% respectively, P = 0·001). After adjusting for age and the presence of diabetes, the presence of multiple symptoms remained the only variable that was associated with a positive DWI scan (odds ratio: 30: 95% confidence interval: 2·6-349). Most patients with stroke had very mild strokes with a median admission NIHSS score of 3 and DWI lesion volumes >2 cm were found in only three patients. Most stroke patients made a good recovery (modified Rankin score ≤2 in seven of nine patients with 90 day data). The most common diagnosis in patients without stroke was of vertigo of peripheral origin (14/17). DWI only MRI can be used to rapidly screen patients presenting with vertigo and suspected vertebrobasilar stroke. The occurrence of vertigo in combination with other focal neurological symptoms may

  5. Advances in the diagnosis of hereditary kidney cancer: Initial results of a multigene panel test.

    Science.gov (United States)

    Nguyen, Kevin A; Syed, Jamil S; Espenschied, Carin R; LaDuca, Holly; Bhagat, Ansh M; Suarez-Sarmiento, Alfredo; O'Rourke, Timothy K; Brierley, Karina L; Hofstatter, Erin W; Shuch, Brian

    2017-11-15

    Panel testing has been recently introduced to evaluate hereditary cancer; however, limited information is available regarding its use in kidney cancer. The authors retrospectively reviewed test results and clinical data from patients who underwent targeted multigene panel testing of up to 19 genes associated with hereditary kidney cancer from 2013 to 2016. The frequency of positive (mutation/variant likely pathogenic), inconclusive (variant of unknown significance), and negative results was evaluated. A logistic regression analysis evaluated predictive factors for a positive test. Patients (n = 1235) had a median age at diagnosis of 46 years, which was significantly younger than the US population of individuals with kidney cancer (P kidney cancer. Panel tests may be particularly useful for patients who lack distinguishing clinical characteristics of known hereditary kidney cancer syndromes. The current results support the use of early age of onset for genetic counseling and/or testing. Cancer 2017;123:4363-71. © 2017 American Cancer Society. © 2017 American Cancer Society.

  6. Multitemporal satellite data analyses for archaeological mark detection: preliminary results in Italy and Argentina

    Science.gov (United States)

    Lasaponara, Rosa; Masini, Nicola

    2014-05-01

    within Basilicata and Puglia Region, southern Patagonia and Payunia-Campo Volcanicos Liancanelo e PayunMatru respectively, in Italy and Argentina. We focused our attention on diverse surfaces and soil types in different periods of the year in order to assess the capabilities of both optical and radar data to detect archaeological marks in different ecosystems and seasons. We investigated not only crop culture during the "favourable vegetative period" to enhance the presence of subsurface remains but also the "spectral response" of spontaneous, sparse herbaceous covers during periods considered and expected to be less favourable (as for example summer and winter) for this type of investigation. The main interesting results were the capability of radar (cosmoskymed) and multispectral optical data satellite data (Pleiades, Quickbird, Geoeye) to highlight the presence of structures below the surface even (i) in during period of years generally considered not "suitable for crop mark investigations" and even (ii) in areas only covered by sparse, spontaneous herbaceous plants in several test sites investigate din both Argentine and Italian areas of interest. Preliminary results conducted in both Italian and Argentina sites pointed out that Earth Observation (EO) technology can be successfully used for extracting useful information on traces the past human activities still fossilized in the modern landscape in different ecosystems and seasons. Moreover the multitemporal analyses of satellite data can fruitfully applied to: (i) improve knowledge, (ii) support monitoring of natural and cultural site, (iii) assess natural and man-made risks including emerging threats to the heritage sites. References Lasaponara R, N Masini 2009 Full-waveform Airborne Laser Scanning for the detection of medieval archaeological microtopographic relief Journal of Cultural Heritage 10, e78-e82 Ciminale M, D Gallo, R Lasaponara, N Masini 2009 A multiscale approach for reconstructing archaeological

  7. Preliminary results of radiation monitoring near uranium mines in Namibia EJOLT Project (DRAFT version)

    International Nuclear Information System (INIS)

    Chareyron, Bruno

    2012-01-01

    As a part of the EJOLT (Environmental Justice Organizations Liability and Trade) project, EARTHLIFE Namibia and CRIIRAD (Commission for Independent Research and Information about Radiation) have organised visits in areas located in the vicinity of uranium mines in Namibia In the course of an on site mission carried out between September 22 and October 2 2011, scientists from the CRIIRAD laboratory took radiation measurements in situ, and collected 14 samples of top soil, 13 samples of surface sediments of the Swakop, Gawib and Khan rivers, 11 underground water samples in the alluvium of Swakop, and Khan rivers and tap water from Arandis city, and one sample of asparagus. Solid samples have been analysed at the CRIIRAD laboratory in France (measurements performed by HpGe gamma spectrometry) and water samples have been monitored for main chemicals by LDA 26 laboratory in France and for radium 226 and radon 222 at the CRIIRAD laboratory. Some of the preliminary findings are summarised in this report: 1 - The dose rate measured by CRIIRAD on the parking of Roessing mine is about 6 times above natural background value (0.9 μSv/h compared to 0.15 μSv/h); 2 - The management of waste rock dumps needs to be improved: Some waste rocks are dumped on the banks of Khan river (at the intersection with Dome Gorge) without fencing and confinement. The radiological impact of this activity has to be studied in detail but preliminary measurements show various impacts on the environment; 3 - The finest fraction of the radioactive tailings dumped on Roessing tailings dam is blown away by the wind and contaminates the surrounding environment; 4 - The high uranium concentration in underground water collected downstream Roessing uranium mine in the Khan river and Swakop river alluvium raises the question of the origin of this uranium

  8. Preliminary results of radiation monitoring near uranium mines in Namibia EJOLT Project (DRAFT version)

    Energy Technology Data Exchange (ETDEWEB)

    Chareyron, Bruno

    2012-04-05

    As a part of the EJOLT (Environmental Justice Organizations Liability and Trade) project, EARTHLIFE Namibia and CRIIRAD (Commission for Independent Research and Information about Radiation) have organised visits in areas located in the vicinity of uranium mines in Namibia In the course of an on site mission carried out between September 22 and October 2 2011, scientists from the CRIIRAD laboratory took radiation measurements in situ, and collected 14 samples of top soil, 13 samples of surface sediments of the Swakop, Gawib and Khan rivers, 11 underground water samples in the alluvium of Swakop, and Khan rivers and tap water from Arandis city, and one sample of asparagus. Solid samples have been analysed at the CRIIRAD laboratory in France (measurements performed by HpGe gamma spectrometry) and water samples have been monitored for main chemicals by LDA 26 laboratory in France and for radium 226 and radon 222 at the CRIIRAD laboratory. Some of the preliminary findings are summarised in this report: 1 - The dose rate measured by CRIIRAD on the parking of Roessing mine is about 6 times above natural background value (0.9 {mu}Sv/h compared to 0.15 {mu}Sv/h); 2 - The management of waste rock dumps needs to be improved: Some waste rocks are dumped on the banks of Khan river (at the intersection with Dome Gorge) without fencing and confinement. The radiological impact of this activity has to be studied in detail but preliminary measurements show various impacts on the environment; 3 - The finest fraction of the radioactive tailings dumped on Roessing tailings dam is blown away by the wind and contaminates the surrounding environment; 4 - The high uranium concentration in underground water collected downstream Roessing uranium mine in the Khan river and Swakop river alluvium raises the question of the origin of this uranium

  9. Preliminary On-Orbit Neutron Dose Equivalent and Energy Spectrum Results from the ISS-RAD Fast Neutron Detector (FND)

    Science.gov (United States)

    Semones, Edward; Leitgab, Martin

    2016-01-01

    The ISS-RAD instrument was activated on ISS on February 1st, 2016. Integrated in ISS-RAD, the Fast Neutron Detector (FND) performs, for the first time on ISS, routine and precise direct neutron measurements between 0.5 and 8 MeV. Preliminary results for neutron dose equivalent and neutron flux energy distributions from online/on-board algorithms and offline ground analyses will be shown, along with comparisons to simulated data and previously measured neutron spectral data. On-orbit data quality and pre-launch analysis validation results will be discussed as well.

  10. Mechanical diagnosis and therapy enhances attitude toward self-management in people with musculoskeletal disorders: A preliminary evidence with a before-after design.

    Science.gov (United States)

    Takasaki, Hiroshi

    2017-01-01

    -management programs in previous studies (%> positive "reliable change': Self-monitoring and Insight = 20.5%, Skill and Technique Acquisition = 30.7%; % net positive "reliable change": Self-monitoring and Insight = 14.1%, Skill and Technique Acquisition = 23.0%). This study provides a preliminary evidence that mechanical diagnosis and therapy enhances patient's self-management skills, particularly in the self-monitoring skills for symptoms/functions and the self-management skill for symptoms/problems.

  11. Fractal Analysis of Elastographic Images for Automatic Detection of Diffuse Diseases of Salivary Glands: Preliminary Results

    Directory of Open Access Journals (Sweden)

    Alexandru Florin Badea

    2013-01-01

    Full Text Available The geometry of some medical images of tissues, obtained by elastography and ultrasonography, is characterized in terms of complexity parameters such as the fractal dimension (FD. It is well known that in any image there are very subtle details that are not easily detectable by the human eye. However, in many cases like medical imaging diagnosis, these details are very important since they might contain some hidden information about the possible existence of certain pathological lesions like tissue degeneration, inflammation, or tumors. Therefore, an automatic method of analysis could be an expedient tool for physicians to give a faultless diagnosis. The fractal analysis is of great importance in relation to a quantitative evaluation of “real-time” elastography, a procedure considered to be operator dependent in the current clinical practice. Mathematical analysis reveals significant discrepancies among normal and pathological image patterns. The main objective of our work is to demonstrate the clinical utility of this procedure on an ultrasound image corresponding to a submandibular diffuse pathology.

  12. Magnetic resonance velocity mapping of 3D cerebrospinal fluid flow dynamics in hydrocephalus: preliminary results

    Energy Technology Data Exchange (ETDEWEB)

    Stadlbauer, Andreas [Landesklinikum St. Poelten, MR Physics Group, Department of Radiology, St. Poelten (Austria); University of Erlangen-Nuremberg, Department of Neurosurgery, Erlangen (Germany); Salomonowitz, Erich [Landesklinikum St. Poelten, MR Physics Group, Department of Radiology, St. Poelten (Austria); Brenneis, Christian [Landesklinikum St. Poelten, Department of Neurology, St. Poelten (Austria); Ungersboeck, Karl [Landesklinikum St. Poelten, Department of Neurosurgery, St. Poelten (Austria); Riet, Wilma van der [European MRI Consultancy (EMRIC), Strasbourg (France); Buchfelder, Michael; Ganslandt, Oliver [University of Erlangen-Nuremberg, Department of Neurosurgery, Erlangen (Germany)

    2012-01-15

    To investigate the detectability of CSF flow alterations in the ventricular system of patients with hydrocephalus using time-resolved 3D MR velocity mapping. MR velocity mapping was performed in 21 consecutive hydrocephalus patients and 21 age-matched volunteers using a 3D phase-contrast (PC) sequence. Velocity vectors and particle path lines were calculated for visualisation of flow dynamics. CSF flow was classified as ''hypomotile flow'' if it showed attenuated dynamics and as ''hypermotile flow'' if it showed increased dynamics compared with volunteers. Diagnostic efficacy was compared with routine 2D cine PC-MRI. Seven patients showed hypomotile CSF flow: six had non-communicating hydrocephalus due to aqueductal stenosis. One showed oscillating flow between the lateral ventricles after craniotomy for intracranial haemorrhage. Seven patients showed normal flow: six had hydrocephalus ex vacuo due to brain atrophy. One patient who underwent ventriculostomy 10 years ago showed a flow path through the opening. Seven patients showed hypermotile flow: three had normal pressure hydrocephalus, three had dementia, and in one the diagnosis remained unclear. The diagnostic efficacy of velocity mapping was significantly higher except for that of aqueductal stenosis. Our approach may be useful for diagnosis, therapy planning, and follow-up of different kinds of hydrocephalus. (orig.)

  13. Could combined sleep and pain evaluation be useful in the diagnosis of disorders of consciousness (DOC)? Preliminary findings.

    Science.gov (United States)

    Aricò, Irene; Naro, Antonino; Pisani, Laura Rosa; Leo, Antonino; Muscarà, Nunzio; De Salvo, Simona; Silvestri, Rosalia; Bramanti, Placido; Calabrò, Rocco Salvatore

    2016-01-01

    The diagnosis of Disorders of Consciousness (DOC) is still challenging. Indeed, ~ 40% of patients in vegetative state (VS) are misdiagnosed, suggesting the need of more appropriate diagnostic tools. Emerging data are showing that EEG, including sleep structure evaluation and multimodal evoked potential recording could be helpful in DOC diagnosis. Moreover, pain perception evaluation could further increase diagnosis accuracy in such individuals. Fourteen individuals with DOC, due to severe brain injury, were enrolled and admitted to the Intensive Neurorehabilitation Unit of the Research Institute. All patients were evaluated by means of the Coma Recovery Scale-Revised, a 24(hh)-polysomnography and a Laser Evoked Potential (LEP) paradigm. Clinically-defined patients in Minimally Consciousness State showed a more preserved sleep structure, physiologic hypnic figures and preserved REM/NREM sleep distribution than subjects in VS. LEP showed increased latencies and reduced amplitudes and were also detectable in patients with more structured sleep. The data support previous findings concerning the importance of sleep study in DOC diagnosis, with more specific neurophysiological paradigms. Interestingly, the findings shed some light on the possible correlations among global brain connectivity, sleep structure and pain perception, which are related to the activity of the wide thalamo-cortical and cortico-cortical networks underlying consciousness.

  14. Coherent instabilities of proton beams in accelerators and storage rings - experimental results, diagnosis and cures

    International Nuclear Information System (INIS)

    Schnell, W.

    1977-01-01

    The author discusses diagnosis and cure of proton beam instabilities in accelerators and storage rings. Coasting beams and bunched beams are treated separately and both transverse and longitudinal instabilities are considered. (B.D.)

  15. Secure Microprocessor-Controlled Prosthetic Leg for Elderly Amputees: Preliminary Results

    Directory of Open Access Journals (Sweden)

    S. Krut

    2011-01-01

    Full Text Available We introduce a new prosthetic leg design, adapted to elderly trans-femoral amputees. Technical progress in prosthesis design mainly concerns active individuals. An important number of elderly amputees are not very mobile, tire easily, present reduced muscle strength, and have difficulties managing their balance. Therefore, the needs and characteristics of this specific population are very different from those of younger ones and the prosthetic solutions are not adapted. Our artificial knee has been designed to fulfill the specific requirements of this population in terms of capabilities, transfer assistance, security, intuitiveness, simplicity of use, and types of physical activity to be performed. We particularly focused our efforts on ensuring safe and secure stand-to-sit transfers. We developed an approach to control the different states of the prosthetic joint (blocked, free, resistant, associated with different physical activities. Amputee posture and motion are observed through a single multi-axis force sensor embedded in the prosthesis. The patient behaves naturally, while the controller analyses his movements in order to detect his intention to sit down. The detection algorithm is based on a reference pattern, calibrated individually, to which the sensor data are compared, and submitted to a set of tests allowing the discrimination of the intention to sit down from other activities. Preliminary validation of the system has been performed in order to verify the applicability of the prosthesis to different tasks: walking, standing, sitting down, standing up, picking up an object from a chair, slope and stair climbing.

  16. Prophylactic Bilateral Nipple-sparing Mastectomy and a Staged Breast Reconstruction Technique: Preliminary Results

    Science.gov (United States)

    Tondu, Thierry; Thiessen, Filip; Tjalma, Wiebren A.A.

    2016-01-01

    More high-risk women with breast cancer are identified using genetic testing at a younger age. These young women often opt for prophylactic surgery. Most patients are reluctant for extra donor-site scars besides infections and necrosis. In order to reduce these risks, a two-stage breast reconstruction technique is used for high-risk women with large or ptotic breasts. We presume that this procedure will reduce the risk of skin envelope and nipple–areola complex (NAC) necrosis to less than 1%. In the first stage, an inferior pedicle reduction is performed to obtain large volume reduction with maximal safety for the NAC. The ptosis, skin excess, and malpositioning of the NAC are corrected safely at this stage. In the second stage, the skin-sparing mastectomy is performed with or without nipple sparing. During this procedure, the areola is never removed. A bilateral breast reconstruction is then performed with an immediate subpectoral prothesis or delayed with the use of a subpectoral tissue expander. In this way, we aim to meet the patient’s wish to undergo bilateral risk reducing mastectomy in breasts that need ptosis correction without donor-site scarring. This article describes the procedure and reports the preliminary data. PMID:27867298

  17. Prophylactic Bilateral Nipple-sparing Mastectomy and a Staged Breast Reconstruction Technique: Preliminary Results

    Directory of Open Access Journals (Sweden)

    Thierry Tondu

    2016-01-01

    Full Text Available More high-risk women with breast cancer are identified using genetic testing at a younger age. These young women often opt for prophylactic surgery. Most patients are reluctant for extra donor-site scars besides infections and necrosis. In order to reduce these risks, a two-stage breast reconstruction technique is used for high-risk women with large or ptotic breasts. We presume that this procedure will reduce the risk of skin envelope and nipple–areola complex (NAC necrosis to less than 1%. In the first stage, an inferior pedicle reduction is performed to obtain large volume reduction with maximal safety for the NAC. The ptosis, skin excess, and malpositioning of the NAC are corrected safely at this stage. In the second stage, the skin-sparing mastectomy is performed with or without nipple sparing. During this procedure, the areola is never removed. A bilateral breast reconstruction is then performed with an immediate subpectoral prothesis or delayed with the use of a subpectoral tissue expander. In this way, we aim to meet the patient's wish to undergo bilateral risk reducing mastectomy in breasts that need ptosis correction without donor-site scarring. This article describes the procedure and reports the preliminary data.

  18. Mindfulness skills in borderline personality disorder patients during dialectical behavior therapy: preliminary results.

    Science.gov (United States)

    Perroud, Nader; Nicastro, Rosetta; Jermann, Françoise; Huguelet, Philippe

    2012-09-01

    One of the components of dialectical behavior therapy (DBT) is the use of mindfulness skills as a core component of treatment for subjects with borderline personality disorder (BPD). In this study, we investigated changes in and correlates of mindfulness skills over a 1-year follow-up including a 4-week session of intensive DBT followed by 10 months of standard DBT. Fifty-two BPD subjects were assessed several times using the Kentucky Inventory of Mindfulness Skills (KIMS) which describes mindfulness in four discrete dimensions: observing (Obs), describing (Des), acting with awareness (AwA) and accepting without judgment (AwJ). AwJ was the only dimension that increased significantly over time after adjustment for potential confounding factors (β = 0.24; P = 0.0002). Increases in AwJ correlated with improvement in BPD symptoms. This study highlights the usefulness of investigating changes in mindfulness dimensions during DBT. AwJ is a possible mechanism for positive change. Encouraging this skill should lead to a more adaptive response to problematic situations and counteract impulsive and problematic behaviors. The lack of specific control groups means that these findings are preliminary and replication is required.

  19. Preliminary results from the MEMO multicomponent measurements of waves on-board INTERBALL 2

    Directory of Open Access Journals (Sweden)

    F. Lefeuvre

    Full Text Available The MEMO (MEsure Multicomposante des Ondes experiment is a part of the INTERBALL 2 wave consortium. It is connected to a total of six electric and nine magnetic independent sensors. It provides waveforms associated with the measurement of two to five components in three frequency bands: ELF (5–1000 Hz, VLF (1–20 kHz, LF (20–250 kHz. Preliminary analyses of low and high resolution data are presented. The emphasis is put on the estimation of the propagation characteristics of the observed waves.VLF hiss emissions are shown to be mainly whistler mode emissions, but other modes are present. An accurate estimation of the local plasma frequency is proposed when the low L = 0 cutoff frequency is identified. AKR emissions observed just above source regions are studied. R-X and L-O modes are found: the first at the lowest frequencies and the second at the highest. Both propagate with wave normal directions weakly oblique or quasi-parallel to the Earth's magnetic field direction. Propagation characteristics are also determined for a (non-drifting fine structure of AKR. There is no fundamental difference with structurless events. Nightside and dayside bursts of ELF electromagnetic emissions are presented. It is not clear whether the two emissions belong to the "lion roar" emissions or not.

    Key words. Magnetospheric physics (auroral phenomena; plasma waves and instabilities; instruments and techniques

  20. Screening diagnostics of antivital experiences and propensity toward impulsive, autoagressive behavior in adolescents (preliminary results

    Directory of Open Access Journals (Sweden)

    Bannikov G.S.,

    2014-08-01

    Full Text Available Development of methods for revealing antivital experiences and propensity to autoaggressive behavior in educational institutions is one of the key steps in developing strategies for the primary prevention of suicidal behavior in adolescents. The purpose of this study was to develop an effective screening diagnostic package aimed at identifying antivital experiences and propensity to autoaggressive behavior. The survey methods we used were: Beck Hopelessness Scale, Russell Loneliness Scale, A.G. Shmelev Suicide Risk Questionnaire, PDQ-IV Borderline disorder and Narcissism scales. At the first stage we examined 750 minors aged 12-18 and identified risk group (85 people – 11.4%, which included adolescents with high levels of both individual scales, and their combination. At the second stage we examined 10 adolescents at risk. In 7 of them (70% were identified antivital, suicidal thoughts of passive or compulsive nature, signs of subjective and objective socio- psychological maladjustment. Our preliminary conclusion is that high levels of hopelessness and loneliness in adolescents are stable predictors of mental and emotional distress and psychosocial maladjustment in the period of psychological crises and decompensation of character accentuation of borderline and narcissistic types. These scales can be recommended for primary screening of antivital (depressive experiences and propensity to autoaggressive behavior in adolescents.