WorldWideScience
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Frictional amyloidosis in Oman - A study of ten cases  

Directory of Open Access Journals (Sweden)

Full Text Available Macular amyloidosis is an important cause for cutaneous pigmentation, the aetiology of which is poorly understood. Friction has recently been implicated the causation of early lesions, referred to as frictional amyloidosis. Confirmation of diagnosis by the detect on of amyloid using histochemical stains is inconsistent. Ten patients with pigmentation suggestive of macular amyloidosis were studied with detailed history, clinical examination, biopsy for histochemistry and electron microscopy. Nine out of ten patients had a history of prolonged friction with various objects such as bath sponges, brushes, towels, plant sticks and leaves. Amyloid was demonstrated by histochemical staining in only six out of ten cases. In the remaining four cases, amyloid was detected by electron microscopy. These consisted of aggregates of non-branching, extracellular, intertwining fibres measuring between 200-500 nm in length and between 20-25 nm in diameter. The study confirms the role of friction in the causation of this condition. Histochemical stains are not always successful in the detection of amyloid and electron microscopy is helpful for confirming its presence. The term frictional amyloidosis aptly describes the condition.

Mysore Venkataram

2002-01-01

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Keys to success: Ten case studies of effective weatherization programs  

Energy Technology Data Exchange (ETDEWEB)

In 1990, DOE initiated a nationwide evaluation of its Weatherization Program, with assistance from Oak Ridge National Laboratory and an advisory group of 40 weatherization professionals, program managers, and researchers. The evaluation is comprised of three impact studies covering the Program`s major market segments: Single-family homes, mobile homes, and dwellings in small (2 to 4-unit) multifamily buildings (the Single-Family Study), Single-family homes heated primarily with fuel oil (the Fuel-Oil Study), and Dwellings in buildings with five or more units (the Multifamily Study). The Single-Family Study, the subject of this report, is a critical part of this coordinated evaluation effort. Its focus on single-family dwellings, mobile homes, and dwellings in small multifamily buildings covers 83% of the income-eligible population and 96% of the dwellings weatherized during Program Year 1989. The first phase of the Single-Family Study involved the analysis of a massive data base of information collected from 368 local weatherization agencies and 543 electric and gas utilities. This analysis resulted in energy-saving and cost-effectiveness estimates for the Weatherization Program and the identification of a set of ten high-performing agencies located throughout the country. The second phase, which is the subject of this report, involves a ``process`` evaluation of these ten high performers, aimed at identifying those weatherization practices that explain their documented success.

Brown, M.A.; Berry, L.G.; Kolb, J.O.; White, D.L. [Oak Ridge National Lab., TN (United States); Kinney, L.F.; Wilson, T. [Synertech Systems Corp., Syracuse, NY (United States)

1993-11-01

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Understanding place value: A case study of the Base Ten Game  

Science.gov (United States)

This paper describes a research project carried out by nine teachers from diverse schools in Australia. The project explored the role of a commonly used teaching activity, referred to in this report as the Base Ten Game, in developing children’s understanding of our number system beginning with whole numbers and extending to decimals. The report includes a description of the game, two case studies, and results and implications for the classroom. An appendix includes strategies for managing the Base Ten Game.

Association of Independent Schools of South Australia

2004-01-01

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The acute radiation syndrome: A study of ten cases and a review of the problem  

Energy Technology Data Exchange (ETDEWEB)

In this report ten cases of acute radiation syndrome are described resulting from two accidents occurring at the Los Alamos Scientific Laboratory of unique nature involving fissionable material. These cases are described in considerable detail. The report comprises ten sections. This volume, part II of the report, is comprised of sections entitled: (1) the Biological Basis for the Clinical Response seen in the Acute radiation Syndrome, (2) Clinical Signs and Symptoms, (3) Discussion of Hematological Findings, (4) Chemistry of the Blood and Urine, (5) Discussion of Pathological Findings, and (6) Reconsiderations of the Calculated Radiation Doses in Terms of the Observed Biological Response of the Patients. This report was prepared primarily for the clinician who is interested in radiation injuries and therefore emphasis has been placed on the correlation of clinical and pathological changes with the type of cytogenetic change known to be produced by ionizing radiation.

Hempelmann, L.H.; Lisco, H.

1950-03-17

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Primary B-cell gastric lymphomas of mucosaassociated lymphoid tissue. Histological and immunohistochemical study of ten cases on surgical specimens  

OpenAIRE

Ten cases of gastric mucosa-associated lymphoid-tissue B-cell lymphoma were studied on surgical specimens by histology and immunohistochemistry, with monoclonal and polyclonal antibodies for B- and T-cells. For the first time, percentage of centroblast-like cells was appreciated, using their LN1 positivity, by opposition to the negativity of centrocyte-like cells (LN2 immunoreactivity alone). Lymphomas were divided into four main groups: A) centrocyte-like ...

Lavergne, Anne; Kanavaros, Panagiotis; Galian, Annie

1992-01-01

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PURPA Resource Development in the Pacific Northwest : Case Studies of Ten Electricity Generating Powerplants.  

Energy Technology Data Exchange (ETDEWEB)

The case studies in this document describe the Public Utilities, Regulatory Policies Act (PURPA) development process for a variety of generating technologies. Developer interactions with regulatory agencies and power purchasers are described in some detail. Equipment, installation, and maintenance costs are identified; power marketing considerations are taken into account; and potential environmental impacts, with corresponding mitigation approaches and practices are summarized. The project development case studies were prepared by the energy agencies of the four Northwest states, under contract to the Bonneville Power Administration.

Washington State Energy Office.

1990-07-01

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A clinical study on ten cases of superior mesenteric arterial occulusion  

International Nuclear Information System (INIS)

A total of 10 cases of acute superior mesenteric arterial occulusion (SMAO) treated in our department in a previous 11-year period were divided into the survival (n=4) and death (n=6) groups and studied for the diagnosis, treatment, and postoperative management. An averaged age of them was as high as 81 years. All the patients had some cardiovascular disorders as underlying diseases, and seven patients of them had atrial fibrillation. The time from the onset of SMAO to the treatment ranged from 4 to 96 hours, in that no significant difference was noted between the survival and death groups. Contrast enhanced abdominal CT was conducted preoperatively in all the patients. It was retrospectively considered that preoperative diagnosis had to be made by the CT scans in eight of them who had developed occulusion at the center of the superior mesenteric artery. Except one patient who could be treated by interventional radiology (IVR) using a balloon-tip catheter, the remaining nine patients underwent laparotomy and six out of the nine patients underwent the resection of massive intestines. Seven patients overcame postoperative acute phase, however, only four of them were able to recover their social activities. In order to improve the prognosis of the disease, we are required not only to avoid massive intestinal resection by making early diagnosis, but also to conduct long-term postoperative intensive therapies including those for underlying diseases as well as prevention ofderlying diseases as well as prevention of recurrence and nutritional management. (author)

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Azo dyes and related compounds as important aquatic contaminants: a ten-year case study  

Science.gov (United States)

Mutagenicity has been found in several aquatic systems in the world; however, this activity usually is not associated with any of the compounds that are currently regulated. Attempting to identify these hazardous compounds, an integrated study was conducted, employing several dif...

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Enabling frameworks for low-carbon technology transfer to small emerging economies: Analysis of ten case studies in Chile  

International Nuclear Information System (INIS)

Technology transfer is crucial to reduce the carbon intensity of developing countries. Enabling frameworks need to be in place to allow foreign technologies to flow, to be absorbed and to bring about technological change in the recipient country. This paper contributes to identifying these enabling factors by analysing 10 case studies of low-carbon technology transfer processes based in Chile. Our findings show the importance of strong economic and institutional fundamentals, a sound knowledge base, a sizable and stable demand and a functioning local industry. Policy recommendations are derived to improve the penetration of foreign low-carbon technologies in developing countries, focusing on the particularities of small and medium emerging economies. - Highlights: ? We analyse 10 case studies of low carbon technology transfer to Chile. ? We identify enablers of technology transfer to developing countries. ? We provide policy recommendations focusing on small and medium economies.

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CHILDHOOD HERPES ZOSTER: A CLUSTERING OF TEN CASES  

Science.gov (United States)

Herpes zoster occurs due to reactivation of the latent varicella zoster virus and is usually a disease of the elderly. Childhood herpes zoster is believed to be rare, though recent studies suggest increasing incidence in children. Here we report ten cases of childhood herpes zoster, seven of which occurred within a short span of six months, at a tertiary care level hospital in Pokhara, Nepal. Only three of the ten children reported previous history of varicella infection and none was immunized against varicella. Though childhood herpes zoster accounted for less than 1% of the total zoster cases in the past, recent reports show an increase in the number of cases in apparently healthy children. So far, no studies have been done linking childhood herpes zoster with HIV, though there are many studies linking it with other immunocompromised conditions. PMID:20049274

Prabhu, Smitha; Sripathi, H; Gupta, Sanjeev; Prabhu, Mukyaprana

2009-01-01

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Childhood herpes zoster: A clustering of ten cases  

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Full Text Available Herpes zoster occurs due to reactivation of the latent varicella zoster virus and is usually a disease of the elderly. Childhood herpes zoster is believed to be rare, though recent studies suggest increasing incidence in children. Here we report ten cases of childhood herpes zoster, seven of which occurred within a short span of six months, at a tertiary care level hospital in Pokhara, Nepal. Only three of the ten children reported previous history of varicella infection and none was immunized against varicella. Though childhood herpes zoster accounted for less than 1% of the total zoster cases in the past, recent reports show an increase in the number of cases in apparently healthy children. So far, no studies have been done linking childhood herpes zoster with HIV, though there are many studies linking it with other immunocompromised conditions.

Prabhu Smitha

2009-01-01

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Lifeline electric rates and alternative approaches to the problems of low-income ratepayers. Ten case studies of implemented programs  

Energy Technology Data Exchange (ETDEWEB)

Program summaries, issue developments, governmental processes, and impacts are discussed for 10 case studies dealing with lifeline electric rates and alternative approaches to the problems of low-income ratepayers, namely; the Boston Edison rate freeze; the California lifeline; Florida Power and Light conservation rate; the Iowa-Illinois Gas and Electric small-use rate; the Maine demonstration lifeline program; the Massachusetts Electric Company A-65 rate; the Michigan optional senior citizen rate; the Narragansett Electric Company A-65 SSI rate; the Northern States Power Company conservation rate break; and the Potomac Electric Power Company rate freeze. (MCW)

1980-07-01

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A temporal-spatial postprocessing model for probabilistic run-off forecast. With a case study from Ulla-Førre with five catchments and ten lead times  

Science.gov (United States)

This work is driven by the needs of next generation short term optimization methodology for hydro power production. Stochastic optimization are about to be introduced; i.e. optimizing when available resources (water) and utility (prices) are uncertain. In this paper we focus on the available resources, i.e. water, where uncertainty mainly comes from uncertainty in future runoff. When optimizing a water system all catchments and several lead times have to be considered simultaneously. Depending on the system of hydropower reservoirs, it might be a set of headwater catchments, a system of upstream /downstream reservoirs where water used from one catchment /dam arrives in a lower catchment maybe days later, or a combination of both. The aim of this paper is therefore to construct a simultaneous probabilistic forecast for several catchments and lead times, i.e. to provide a predictive distribution for the forecasts. Stochastic optimization methods need samples/ensembles of run-off forecasts as input. Hence, it should also be possible to sample from our probabilistic forecast. A post-processing approach is taken, and an error model based on Box- Cox transformation, power transform and a temporal-spatial copula model is used. It accounts for both between catchment and between lead time dependencies. In operational use it is strait forward to sample run-off ensembles from this models that inherits the catchment and lead time dependencies. The methodology is tested and demonstrated in the Ulla-Førre river system, and simultaneous probabilistic forecasts for five catchments and ten lead times are constructed. The methodology has enough flexibility to model operationally important features in this case study such as hetroscadasety, lead-time varying temporal dependency and lead-time varying inter-catchment dependency. Our model is evaluated using CRPS for marginal predictive distributions and energy score for joint predictive distribution. It is tested against deterministic run-off forecast, climatology forecast and a persistent forecast, and is found to be the better probabilistic forecast for lead time grater then two. From an operational point of view the results are interesting as the between catchment dependency gets stronger with longer lead-times.

Engeland, K.; Steinsland, I.

2012-04-01

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Cancer profile in Kolar: A ten years study  

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Full Text Available Context: Cancer profile varies in different regions and depends on race, lifestyle and diet. The study of a cancer profile helps to know the common cancers in a particular population, its probable risk factors and also helps in cancer control programs. AIM: To study the cancer profile at Kolar, based on Pathology Department records. Settings and Design: Retrospective study from January 1997 to December 2006. Materials and Methods: Cancer cases diagnosed by fine needle aspiration cytology (FNAC and histopathology in the Department of Pathology were included in the study. The relevant history, clinical findings, and sociodemographic information of each case was retrieved from hospital records. Statistical Analysis Used: Descriptive statistics. Results: Out of a total of 19,615 cases reported at the Department of Pathology, 2,744 (13.98% were cancer cases. The peak incidence was in the fifth decade in females and the seventh decade in males. Male : Female ratio was 0.7 : 1. Overall there was a steady rise in the number of cases from year 1997 to 2006. The top ten cancers in males were of oral cavity, stomach, esophagus, bone, non-Hodgkin?s lymphoma (NHL, prostate, liver, larynx, penis, and Hodgkin?s disease / bladder and those in females were oral cavity, cervix, breast, stomach, esophagus, thyroid, ovary, bone, rectum, and melanoma. Conclusions: Oral cavity and upper gastrointestinal cancers predominated in both genders. In females, cervical cancer predominated over breast cancer. Thyroid cancers were relatively more common in this region especially in females.

Kalyani R

2010-01-01

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Glenoid hypoplasia: A case series of ten shoulders  

Scientific Electronic Library Online (English)

Full Text Available SciELO South Africa | Language: English Abstract in english The terms 'glenoid hypoplasia', 'glenoid dysplasia' and 'dentate glenoid' refer to an uncommon developmental abnormality of the lower glenoid and scapular neck. The presenting symptoms are variable depending on the age at presentation, and in many cases the diagnosis is made incidentally on X-ray. T [...] he exact incidence is unknown, but is estimated in cadaveric and MRI studies to be in the region of 14.3% to 35% depending on the ethnic population studied.12 Current orthopaedic literature consists of case reports and small case series, with some of the more recent papers focusing on the arthroplasty management and implications.3-5

P, Ryan; P, Jordaan; JP, du Plessis; B, Vrettos; S, Roche.

2014-12-01

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Primary lymphoma of the central nervous system: a clinical-pathological and immunohistochemical study of ten autopsy cases Linfoma primário do sistema nervoso central: estudo clínico-patológico e imuno-histoquímico de dez casos de necropsia  

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Full Text Available CONTEXT: Primary central nervous system lymphomas (PCNSL are a rare subgroup of lymphomas generally associated with HIV and EBV. OBJECTIVE: To study ten autopsy cases of PCNSL, to describe the neuropathological findings, to characterize the phenotype of the neoplastic cells, to detect EBV in the lesion and to compare the findings with the clinical and laboratory data of the patients. METHOD: The clinical, histological and immunohistochemical data of ten cases of PCNSL, eight cases from patients with AIDS, identified among 265 autopsies of these patients were analyzed. RESULTS: Seven patients were males and the mean age was 40.9 years. The most frequent symptomatology was focal neurologic deficit (70%. Six patients presented with only one lesion. Histologically, densely cellular and polymorphous neoplasms with angiocentrism were observed, in 90% of cases. An association with other diseases was observed in four cases. Most patients had diffuse large B cell non-Hodgkin’s lymphoma. EBV was detected by immunohistochemistry in only one case. The lack of detection of the virus might have been due to the long time of fixation of the brain which might have inactivate epitopes therefore compromising the testing. CONCLUSION: In the present series, PCNSL presented with focal symptoms, with unifocal or multifocal lesions, with a predominant B-cell CD20 positive phenotype, rarely associated with EBV.CONTEXTO: Linfoma primário do sistema nervoso central (LP-SNC é raro subgrupo de linfomas relacionado à AIDS, geralmente associado EBV. OBJETIVO: Identificar os achados clínico-patológicos dos pacientes com LP-SNC. MÉTODO: Foram analisados dados clínicos, histológicos e imuno-histoquímicos de dez necrópsias de LP-SNC, oito deles de pacientes com AIDS, identificados entre 265 autopsias destes. RESULTADOS: Sete pacientes foram masculinos e a idade média foi 40,9 anos. A sintomatologia neurológica mais freqüente era focal (70%. Seis exibiram lesão única. Histologicamente, eram neoplasias densamente celulares e polimorfas, com angiocentrismo em 90% dos casos. Em quatro casos, houve associação com outras afecções. A maioria dos casos foi de linfoma não-Hodgkin difuso de grandes células B. A pesquisa para EBV foi positiva em um caso. CONCLUSÃO: Predominaram os LP-SNC associados à AIDS, com sintomatologia focal, lesão em massa ou multifocal, com predominância de células B CD-20.

Henrique Costa

2006-12-01

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TESTING THE HYPOTHESIS OF MARKET EFFICIENCY THROUGH ARTIFICIAL NEURAL NETWORKS: A CASE STUDY WITH THE TEN MAJOR IBOVESPA SHARES IN THE FIRST QUARTER OF 2011  

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Full Text Available Fuel market is facing political, economic, social and environmental problems that are fuzzing the future of fossil energy sources and in face of these facts, countries are looking for hybrid and electric vehicles as part of solution in transportation sector due to the fact of electric vehicles use few or no fossil fuel. The objective in this article was to identify options until 2020 to introduce electric vehicle in the urban traffic of São Paulo city and to develop this study the method of literature review in secondary sources was used to present electric vehicle technologies and to identify parameters that were assessed through morphological analysis technique. In morphological analysis, sets of values were defined by the author for these parameters, possible combinations were structured, clearly impractical deployment options before 2020 were discarded and some viable solutions were analyzed in details. These analyses concluded that there are viable options for actual days in São Paulo city, but important requirements regarding technology, politic, market, infrastructure and innovation in products and services still need to be addressed and it is the main reason of electric vehicle remain unnoticed by consumers as an viable option. The challenges are great and the actors who are willing to solve them will find a promising market to explore.

Luiz Henrique Herling

2013-01-01

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Astrophysical parameters of ten poorly studied open star clusters  

International Nuclear Information System (INIS)

We present the fundamental parameters of ten open star clusters, nominated from Kronberger et al. who presented some newly discovered stellar groups on the basis of the Two Micron All Sky Survey photometry and Digitized Sky Survey visual images. Star counts and photometric parameters (radius, membership, distance, color excess, age, luminosity function, mass function, total mass, and dynamical relaxation time) have been determined for these ten clusters for the first time. In order to calibrate our procedures, the main parameters (distance, age, and color excess) have been re-estimated for another five clusters, which are also studied by Kronberger et al. (research papers)

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Treatment of peripheral extremity pain with TENS: A report of three cases  

OpenAIRE

This paper reviews three cases in which radiculopathies of the cervical and lumbar spine were successfully managed by the use of transcutaneous electrical nerve stimulation (TENS) in addition to, or instead of, spinal manipulative therapy. Characteristics of TENS, indications for its use, and application procedures are discussed.

Thiel, Haymo W.; Cassidy, J. David; Mierau, Dale R.

1987-01-01

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Pulmonary Lymphangioleiomyomatosis: A Clinicopathological Analysis of Ten Cases.  

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Full Text Available Background: Lymphangioleiomyomatosis (LAM of the lung is a very rare disease ofunknown etiology which occurs particularly in women of childbearing age.So far, there have been very few reports of LAM in Taiwan.Methods: Data on all patients with a clinical or pathological diagnosis of LAM inChang Gung Memorial Hospital from 1990 to 2001 were collected from thepathology files or by consultation with thoracic surgeons, chest physicians,and radiologists of this institution. Cases were confirmed by lung biopsy andhigh-resolution computed tomographic scanning. Clinical data were obtainedfrom patients' charts. Additional immunostaining for HMB-45 antigen, estrogenreceptor, and progesterone receptor was carried out for cases with availableparaffin blocks.Results: In total, 10 patients confirmed with a diagnosis of LAM and adequate clinicalfollow-up information were found from 1991 to 2001. All were femalesof fertility age. The follow-up periods ranged from 18 to 167 months. Sixpatients received hormonal therapy. According to the pulmonary functiontests and clinical symptoms, 6 patients were in stable condition and 4 showedslow progression of disease by the time of the last follow-up. Two patientsdied after lung transplantation and abdominal surgery for retroperitonealLAM, respectively, at another medical center.Conclusions: The clinicopathological features of our series are similar to those reportedfrom other countries. The clinical course was slowly progressive with no significantresponse to hormonal therapy. Lung biopsies are important for adiagnosis, but the size and location of the biopsy specimens greatly affect thediagnostic reliability.

Shir-Hwa Ueng

2004-03-01

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TENS effects on salivary stress markers: A pilot study.  

Science.gov (United States)

Transcutaneous electrical nerve stimulation (TENS) is extensively used as pain relief through endorphins release. Moreover, recent findings showed a role in the activation of the autonomic nervous system (ANS); it was evidenced by modification in the heart rate variability and ANS-related marker. The objective of this pilot study is to evaluate salivary alpha amylase (sAA) as a marker of stress in two groups of healthy subjects, one receiving ultra-low frequency transcutaneous electrical nerve stimulation (ULF-TENS) and one without stimulation. Sixty healthy people were enrolled. The test group consisted of 30 participants (15 men, 15 women). The control group consisted of 30 participants (15 men, 15 women). Statistical analysis showed that sAA levels were statistically different between men and women independently from TENS; we hypothesize that treatment could influence sAA levels because it is thought to activate ? opioid receptors. The results of this study seem to indicate that the analysis of sAA, through a non-invasive saliva sample, could be an efficient aid for understanding the functions of the autonomic nervous system. PMID:25816413

Ortu, E; Pietropaoli, D; Mazzei, G; Cattaneo, R; Giannoni, M; Monaco, A

2015-03-01

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Hemicrania continua: a report of ten new cases  

OpenAIRE

Hemicrania continua (HC) is an uncommon primary headache first described as a syndrome in 1984. Being quite unusual, its clinical characterization still demands better description. The aim of this study is to present the main clinical characteristics of 10 patients with the diagnosis of HC seen in a tertiary center, critically discussing their main features. All subjects had strictly unilateral headache without side shift and absolute response to indomethacin. Seven patients (70%) presented a...

Bigal Marcelo E.; Tepper Stewart J; Sheftell Fred D.; Rapoport Alan M.

2002-01-01

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Hemicrania continua: a report of ten new cases  

Directory of Open Access Journals (Sweden)

Full Text Available Hemicrania continua (HC is an uncommon primary headache first described as a syndrome in 1984. Being quite unusual, its clinical characterization still demands better description. The aim of this study is to present the main clinical characteristics of 10 patients with the diagnosis of HC seen in a tertiary center, critically discussing their main features. All subjects had strictly unilateral headache without side shift and absolute response to indomethacin. Seven patients (70% presented autonomic features during pain exacerbations. Four (40% had migrainous symptoms during the exacerbations and one presented partial relief with dihydroergotamine. One patient had pain excruciatingly severe during the exacerbations. Although the cardinal features of HC - continuous, unilateral, indomethacin responsive, remain strongly reliable, a refinement on the clinical characterization is needful and desired.

Bigal Marcelo E.

2002-01-01

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Recurrent pulmonary hydatid disease. Analysis of ten cases  

International Nuclear Information System (INIS)

The purpose of this study was to investigate the incidence and define the importance of recurrent pulmonary hydatid cysts in developing countries. We analyzed the records of 312 patients with pulmonary hydatid cyst disease diagnosed in our center between 1999 and 2005. A recurrent pulmonary hydatid cyst was diagnosed in 10 (3.2%) of the 312 patients [8 men and 2 women, mean age 36.9 (range 20-60) years]. The diagnosis was based on radiographic, clinical, or serological findings, established intraoperatively. The most frequent symptom of recurrent pulmonary hydatid cyst was hemoptysis (60%). The mean interval between diagnosis of the initial hydatid cyst and detection of recurrence was 8.75 (range 3-15) years. Bronchoscopy was performed in all patients, but proved diagnostic in only one. The localization of the initial and recurrent cysts differed in seven patients. A median follow-up period of 5 years revealed second recurrences in only two patients; manifesting as an intrapleural rupture of the cyst in one and as empyema in one. The recurrence was treated by resection in all patients; as cystectomy in eight patients, lobectomy in one patient, and pneumonectomy in one patient. Pulmonary hydatid cyst may recur in the same or a different location in the lung. Patients with a pleural lesion must be followed up regularly for any signs of recurrence. (author)

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Fine needle aspiration cytology of primary thyroid lymphoma: a report of ten cases  

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Full Text Available Abstract Primary lymphoma is an uncommon malignancy of the thyroid, comprising of 0.6 to 5 per cent of thyroid cancers in most series. Primary thyroid lymphomas (PTL occur most commonly in elderly women and are commonly of B- cell origin. These frequently present in clinical stage IE and IIE. We report here ten cases of PTL diagnosed over a period of about 7 years in our institute. Out of these ten cases, nine were diagnosed on fine needle aspiration cytology (FNAC and one case was misdiagnosed as lymphocytic thyroiditis. This case was diagnosed as Non- Hodgkin's lymphoma on surgical specimen. Five patients are disease free and doing well, while two died of disease and the other two were lost to follow-up. One patient is currently on chemotherapy. The salient clinical, biochemical, radiological features, FNA findings along with diagnostic difficulties are discussed.

Gupta Nalini

2005-12-01

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Hepatopulmonary hydatidosis in a ten-year-old girl: a case report  

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Full Text Available Abstract Introduction Hydatid disease is a parasitic infection caused by the tapeworm Echinococcus granulosus and is characterised by cystic lesions in the liver and lungs. Concomitant pulmonary and hepatic localization of hydatid cysts in childhood is unusual and represents a distinct clinical entity called hepatopulmonary hydatidosis. Case presentation A ten-year-old Caucasian girl, a permanent resident of rural Greece, was admitted to hospital reporting a nonspecific symptomatology compatible with a diagnosis of viral infection. Chest radiography revealed a large homogenous circular opacity in the right lung field. On the basis of imaging studies, a diagnosis of hydatidosis was made with synchronous hepatic and pulmonary involvement, successfully managed through a single-stage transthoracic surgical approach. Conclusion This case report highlights the necessity of realizing that hydatid disease continues to be a public health problem, which often remains asymptomatic for years. Therefore, the presence of any homogeneous cystic spherical opacity on routine chest radiography should raise the suspicion of hydatid disease, mainly in endemic areas such as Greece. General practitioners and physicians involved in pediatric care need to be familiar with the diagnosis and management of the variable clinical manifestations of hydatid disease. Taking into consideration that hepatopulmonary hydatidosis represents a special entity that requires a different therapeutic approach may positively affect its economic and social-related burden.

Vlachakis Ioannis

2010-07-01

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Hepatopulmonary hydatidosis in a ten-year-old girl: a case report  

OpenAIRE

Abstract Introduction Hydatid disease is a parasitic infection caused by the tapeworm Echinococcus granulosus and is characterised by cystic lesions in the liver and lungs. Concomitant pulmonary and hepatic localization of hydatid cysts in childhood is unusual and represents a distinct clinical entity called hepatopulmonary hydatidosis. Case presentation A ten-year-old Caucasian girl, a permanent resident of rural Greece, was admitted to hospital reporting a nonspecific symptomatology compati...

Vlachakis Ioannis; Blevrakis Evangellos; Anyfantakis Dimitrios; Arbiros Ioannis

2010-01-01

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[Allergy to food colouring. A prospective study in ten children].  

Science.gov (United States)

In order to know more about allergy to food colouring, we conducted a prospective open study over 8 months in a group of 10 atopic children with repeated urticaria. The mean age was 6.5 years (4.2 - 13.5 years). The diagnosis was based on oral challenge tests along with hisory taking there were 3 cases of allergy to food colourings. Clinical features were mainly skin symptoms, sometimes associated with GI manifestations which were not only rare (1 case in our series) but also non specific. Colourings-free diet was recommended in consequence. It resulted in the disappearance of the symptoms in a child (Red cochineal) and their regression in the two others (Red cochineal, Red beet) with a follow up of 8 months and 3 months respectively. PMID:16220699

Zenaidi, Makram; Pauliat, Sylvie; Chaliier, Pierre; Fratta, Anne; Girardet, Jean Philippe

2005-07-01

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Spontaneous Mediastinitis in a Ten-year-old Girl: A Case Report  

Energy Technology Data Exchange (ETDEWEB)

Acute suppurative mediastinitis is an uncommon, life threatening condition with a mortality rate of up to 40%. It is mainly caused by esophageal perforation or post-operative complications, and acute mediastinitis not caused by trauma or surgery is rare. To the best of our knowledge, no cases of spontaneous mediastinal abscess in children have been reported in the English medical literature. We report here on a case of an acute mediastinal abscess in a ten-year-old girl and there was no demonstrable clinical or radiologic etiology for infection

Cho, Kyung Eun; Kim, Ji Hong; Yoon, Choon Sik [Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul (Korea, Republic of); Lee, Mi Jung; Kim, Myung Joon [Severance Hospital, Yonsei University College of Medicine, Seoul (Korea, Republic of)

2011-01-15

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Colorectal carcinoma in a ten-year-old girl: a case report.  

Science.gov (United States)

Colorectal carcinoma is very rare in childhood. In this case report, we depict a ten-year-old girl who presented with features of intestinal obstruction which turned out to be due to poorly differentiated mucin secreting adenocarcinoma of descending colon. Only increased awareness of this malignancy in this age-group and a high index of suspicion can help when a child complains of persistent pain of abdomen, altered bowel habits or rectal bleeding, and may provide diagnosis at an earlier stage, thereby improving the prognosis. PMID:22531529

Chattopadhyay, Sarbani; Gupta, Phalguni; Aich, Ranen Kanti; Deb, Asit Ranjan

2012-01-01

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Primary renal carcinoid natural history of the disease for ten years: case report  

OpenAIRE

Abstract Background Primary renal carcinoid is extremely rare and there are few reports on the natural history of the disease. Case presentation A 68-year-old male with a right renal mass who lost to follow-up for ten years has been presented. His only complaint was a mild flank pain. Upon admission to the hospital for his renal mass, he underwent a right radical nephrectomy and pathological examination revealed the diagnosis of primary renal carcinoid. Conclusions In light of the presented c...

Ugras Murat; Yilmaz Ugur; Gunes Ali; Mizrak Bulent

2002-01-01

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Ganglion cysts at the gastrocnemius origin: a series of ten cases  

Energy Technology Data Exchange (ETDEWEB)

To describe ganglion cysts arising close to the origin of the medial and lateral head of gastrocnemius as identified on magnetic resonance (MR) imaging. We present a series of ten cases of ganglion cysts arising close to the gastrocnemius origin from the medial and lateral femoral condyles. These were collected over a 6-year period from our imaging database. All patients attended for routine MR imaging of the knee with a variety of clinical presentations. Data collected included patient demographics, ganglion size, ganglion site, clinical presentation and ancillary MR imaging findings. The ten patients in this series consisted of seven males and three females, five right and five left knees, age range 27-68 years, mean age 40.6 years. The mean maximal dimension of the ganglion cysts was 26 mm, range 15-40 mm. The medial gastrocnemius origin was involved in eight patients and the lateral origin in two patients. The MR imaging findings consisted of both uni- and multi-loculated cysts, often containing numerous septations with fluid signal characteristics. The cysts were extra-capsular with no clear communication with the joint. One patient presented with a popliteal soft tissue mass and none of the cases required surgical intervention for cyst removal. MR imaging may identify ganglion cysts arising in an intra- or extra-articular site around the knee. This series documents the MR imaging characteristics of ganglion cysts arising close to the gastrocnemius origin and discusses the relevance of this imaging finding. (orig.)

James, S.L.J. [RNOH Stanmore, Department of Radiology, Middlesex (United Kingdom); Royal Orthopaedic Hospital, Department of Radiology, Birmingham (United Kingdom); Connell, D.A.; Saifuddin, A. [RNOH Stanmore, Department of Radiology, Middlesex (United Kingdom); Bell, J. [Kingston Hospital NHS Trust, Department of Orthopaedic Surgery, Surrey (United Kingdom)

2007-02-15

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Ganglion cysts at the gastrocnemius origin: a series of ten cases  

International Nuclear Information System (INIS)

To describe ganglion cysts arising close to the origin of the medial and lateral head of gastrocnemius as identified on magnetic resonance (MR) imaging. We present a series of ten cases of ganglion cysts arising close to the gastrocnemius origin from the medial and lateral femoral condyles. These were collected over a 6-year period from our imaging database. All patients attended for routine MR imaging of the knee with a variety of clinical presentations. Data collected included patient demographics, ganglion size, ganglion site, clinical presentation and ancillary MR imaging findings. The ten patients in this series consisted of seven males and three females, five right and five left knees, age range 27-68 years, mean age 40.6 years. The mean maximal dimension of the ganglion cysts was 26 mm, range 15-40 mm. The medial gastrocnemius origin was involved in eight patients and the lateral origin in two patients. The MR imaging findings consisted of both uni- and multi-loculated cysts, often containing numerous septations with fluid signal characteristics. The cysts were extra-capsular with no clear communication with the joint. One patient presented with a popliteal soft tissue mass and none of the cases required surgical intervention for cyst removal. MR imaging may identify ganglion cysts arising in an intra- or extra-articular site around the knee. This series documents the MR imaging characteristics of ganglion cysts arising close to the gastrocnemius origin and dis close to the gastrocnemius origin and discusses the relevance of this imaging finding. (orig.)

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The Gestational Trophoblastic Diseases: A Ten Year Retrospective Study  

OpenAIRE

Background: Gestational trophoblastic disease (GTD) defines a heterogenenous group ofinterrelated lesions that arise from the trophoblastic epithelium of the placenta. There are severalhistologically distinct types of GTD: hydatiform mole (complete or partial), persistant/invasivegestational trophoblastic neoplasia (GTN), choriocarcinoma and placenta site trophoblastictumors. The aim of this study was to determine the frequency and risk factors of GTD amongwomen admitted to Imam Khomeini Hosp...

Razieh Mohammadjafari; Parvin Abedi; Mitra Tadayon Najafabady

2010-01-01

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The Gestational Trophoblastic Diseases: A Ten Year Retrospective Study  

Directory of Open Access Journals (Sweden)

Full Text Available Background: Gestational trophoblastic disease (GTD defines a heterogenenous group ofinterrelated lesions that arise from the trophoblastic epithelium of the placenta. There are severalhistologically distinct types of GTD: hydatiform mole (complete or partial, persistant/invasivegestational trophoblastic neoplasia (GTN, choriocarcinoma and placenta site trophoblastictumors. The aim of this study was to determine the frequency and risk factors of GTD amongwomen admitted to Imam Khomeini Hospital in Ahvaz, Iran.Materials and Methods: This was a cross-sectional study conducted at Imam KhomeiniHospital in Ahvaz, Iran. All hospital records related to GTD (132 from 1996 until 2006 werereviewed. Demographic and histo-pathologic characteristics were extracted. Chi-square andFisher-exact tests were used to analyze all variables. P ? 0.05 was considered statisticallysignificant. SPSS, version 11 was used for statistical analysis.Results: The mean age of patients was 27.6 years. Most patients who presented with GTDwere of ages 18-35 years (71.3%. There was no relationship between age and hydatiformmole during the reproductive years. There were 28 (18.9% patients over the age 40, of which18 (15.90% of these had a complete hydatiform mole. Within this group, 9 (6.8% changedto a persistent mole. There was a significant relationship between age over 40 and completemole (p<0.02. The percentage of patients with blood groups A and O was the same (37.9%.There was a significant relationship between blood groups (O+ and A+ and complete mole(p<0.05.Conclusion: The most common age range for hydatiform mole was 18-35 years. Women overthe age of 40 had a more complete hydatiform mole, which is similar to the other countries.Age and blood group are two risk factors for hydatiform mole.

Razieh Mohammadjafari

2010-01-01

36

Ten years of Developing International Volcanology Graduate Study Programs  

Science.gov (United States)

In 2000 I reported at this symposium about multi-institutional graduate field trips to IAVCEI events, such as the Bali meeting and its importance in building international collegiality and awareness among the volcanology doctoral students. NSF was an enthusiastic supporter of these field sessions and this support has continued through the highly successful Pucon and Reykjavik sessions. International volcanology graduate program development began with several exchange programs. EHaz was a highly successful program (McGill, Simon Fraser, Michigan Tech, Buffalo, UNAM and Universidad de Colima) funded by the Department of Education (FIPSE) that moved students across North America where dozens of graduate students spent semesters of their study abroad and shared annual field trips and online student led graduate seminar classes. Michigan Tech’s volcanology graduate program started a Masters International program that combined Peace Corps service with hazards mitigation graduate study and students were placed by Peace Corps in countries with prominent natural hazards. The new program funded 2 year residences in foreign environments, principally in Pacific Latin America. NSF strongly supported this program from its inception, and eventually it gained NSF PIRE support. Dozens of students have initiated the 3 year program (15 completed) to date. A similar PIRE developed at UAF with a link to volcanology in the Russian Far East. One gain is the development of many socially-conscious research selections. Beginning this year transatlantic dual degree masters programs in volcanology are being offered by a consortium of US and European volcanology programs (Michigan Tech, Buffalo, Clermont Ferrand and University of Milan Bicocca), again aided by FIPSE funding. Students have dual advisors on both sides of the Atlantic and spend about half of their two year programs in Europe and half in US. Faculty also travel in the program and the four campuses are increasingly linked by coursework and research networks. Because the international developments of volcanology programs address the need for more robust coursework and research choices for students than are possible on one campus, and because they lead to a diverse network of professional contacts , we think the next decade will bring many more multi-university volcanology programs linked to field sites all over the world.

Rose, W. I.

2010-12-01

37

Prognostic factors in children with acute lymphoblastic leukemia: a ten year study  

Directory of Open Access Journals (Sweden)

Full Text Available Background: Acute lymphoblastic leukemia (ALL is the most common cancer in the pediatric population. With modern treatments, the chance of the complete recovery is nearly 100%. The most important prognostic factors are appropriate treatment protocol and determination of patient risk factors based on clinical, morphological, immunological and cytological characteristics. In this study we reviewed frequency of these factors, like as age, gender, the primary white blood cell number, sub- group on the base of FAB classification, immunophenotype and the clinical progress. Methods: In this retrospective study, we reviewed 877 pediatric patients with the diagnosis of ALL between the years of 1994 and 2004. In these patients the age, gender, primary WBC count, sub-group based on the FAB classification, immunophenotype and the clinical progress in 177 patient with acute lymphoblastic leukemia at Imam Khomeini Hospital between the years of 1994 to 2004 were determined. Results: Of these patients, 1.6% was younger than one year, 24.8% more than ten years old and 73.6% were between the ages of one and ten years; 63.8% were male. WBC counts were above 50,000/ul in 28.8% of the patients. FAB classifications included L1 in 80.2%, L2 in 17.5% and L3 in 2.3% of the patients. Immunophenotypes included pre-B cell in 63.8%, early pre-B cell in 23.1%, T cell in 12.3% and mature B cell in 0.8% of the patients. Marker CD10+ was detected in 88.1% of the B cell cases. In this study group, 74% of the patients recovered, 16.3% died and 16.5% relapsed.Conclusions: The prevalence of FAB-L1 and pre-B cell cases in this study is greater than a previous study, while the prevalence of FAB-L2 and early pre-B cell cases is less than that of the previous study.

Oloomi yazdi Z.

2008-06-01

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Case Study  

OpenAIRE

With the increase of e-learning by universities and educational institutes in the world through more electronic platforms, come the questions to researchers, educators and designers of electronic platforms about feasibility and using this method of learning. Are we achieving the desired goals and improving the quality of education? Are we improving their performance and ability to self-study without the need for a teacher? Is e-learning an effective and successful method from the students vie...

Ahmad, Taleb; Ha?rdle, Wolfgang Karl

2008-01-01

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A pilot study on using acupuncture and transcutaneous electrical nerve stimulation (TENS) to treat knee osteoarthritis (OA)  

OpenAIRE

Abstract Background The present study tests whether a combined treatment of acupuncture and transcutaneous electrical nerve stimulation (TENS) is more effective than acupuncture or TENS alone for treating knee osteoarthritis (OA). Methods Thirty-two patients with knee OA were randomly allocated to four groups. The acupuncture group (ACP) received only acupuncture treatment at selected acupoints for knee pain; the TENS group (TENS) received only TENS treatment at pain areas; the acupuncture an...

Ochi Hideki; Katsumi Yasukazu; Hirota Satoko; Itoh Kazunori; Kitakoji Hiroshi

2008-01-01

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Finding Top Ten Web Sites Using Search Engines: The Case of The Desalination  

OpenAIRE

The desalination industry involves the desalting of sea or brackish water and achieves the purpose of increasing the world's effective water supply. There are approximately 4,000 desalination Web sites. The six major Internet search engines were used to determine, according to each of the six, the top twenty Web sites for desalination. Each site was visited and the 120 gross returns were pared down to the final ten - the "Top Ten". The Top Ten were then analyzed to determine what it was t...

El-ramly, Nabil; Peterson, Richard Einer; Volonino, Linda

1998-01-01

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CASE STUDY CRITIQUE; UPPER CLINCH CASE STUDY  

Science.gov (United States)

Case study critique: Upper Clinch case study (from Research on Methods for Integrating Ecological Economics and Ecological Risk Assessment: A Trade-off Weighted Index Approach to Integrating Economics and Ecological Risk Assessment). This critique answers the questions: 1) does ...

42

Mature cystic teratomas (MCT) with atypical MR findings. Ten cases with comparison of MR, CT, and pathologic features  

International Nuclear Information System (INIS)

MRI of ten atypical MCT were reviewed correlating with pathology and to clarify why they did not include any hyperintense area on T1-weighted images (T1WI). Nine of the ten cases had a few sebaceous glands. Intra-tumoral chemical shift artifact was noted in four and the presence of the finding was diagnostic of the disease. Two with abundant thyroid tissue showed multilocular cyst whose fluid in some loculi indicated hyperintense on T1WI and hypointense on T2WI, which was similar to MR findings of struma ovarii. Four with complication such as hemorrhagic necrosis demonstrated inhomogeneous signals and they were hardly diagnosed correctly. (author)

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44: TBI before allogeneic BMT for leukemia: The dosimetry of ten cases  

International Nuclear Information System (INIS)

Total body irradiation (TBI) in conjunction with chemotherapy and bone marrow transplantation (BMT) is an effective therapy for leukemia. It is shown that a 8 or 10 MV linear accelerator is a suitable source of radiation for these procedures. Dosimetric and clinical results are presented for ten patients who were treated between Aug 1981 and Aug 1986 in Beijing Medical University in China. 1 reference; 3 figs.; 1 table

44

Medical School Attrition-Beyond the Statistics A Ten Year Retrospective Study  

OpenAIRE

Abstract Background Medical school attrition is important - securing a place in medical school is difficult and a high attrition rate can affect the academic reputation of a medical school and staff morale. More important, however, are the personal consequences of dropout for the student. The aims of our study were to examine factors associated with attrition over a ten-year period (2001–2011) and to study the personal effects of dropout on individual students. Methods The study included qu...

Maher Bridget M; Hynes Helen; Sweeney Catherine; Khashan Ali S; O’Rourke Margaret; Doran Kieran; Harris Anne; Flynn Siun

2013-01-01

45

Case Studies in Business Ethics  

Science.gov (United States)

The most recent guide from Inc.com offers case studies in business ethics and includes coverage of businesses striving to become more environmentally aware, provide community growth, and activate global change. One of the case studies follows Fetzer Vineyards, a California winery committed to reducing its own waste; another describes the way that the Philadelphia restaurant White Dog Cafe donates ten percent of its $4.4 million profit to a variety of nonprofit organizations. The case studies are generally quite short and easy to read; additionally, they link to several online polls that test users's business ethics skills. For more information on Guides @ Inc.com, see the August 10, 2000 Scout Report for Business and Economics.

46

ANALYSIS OF 138 CASES OF LUNG CANCER IN A TRAINING HOSPITAL COMPARED TO THE DATA OF LUNG CANCER CASES DIAGNOSED TEN YEARS PREVIOUSLY  

Directory of Open Access Journals (Sweden)

Full Text Available Objective: To analyze data of cases with lung cancer (LC diagnosed in our clinic over one year period and compare them with data of cases with LC diagnosed before ten years. Method: The demographic data, radiological and bronchoscopic findings, diagnostic methods, and histological type and stages of the patients diagnosed with lung cancer in year 2005 were evaluated. Results: Over one year period, 138 patients were diagnosed with LC. 104 (75.4% were men and 34 (24.6% were women. Mean age was 63.78±9.53 (38-83. 118 (86.5% of the patients had 39±16.34 (5-90 pack-years smoking history. Squamous cell carcinoma (SCC was diagnosed in 40.6% of patients, adenocarcinoma in 29.0%, small cell carcinoma in 21.0%, conbined type in 8.0% and carcinoma with unidentified cell type in 1.4%. Squamous cell carcinoma was more common among smoking patients. It was determined that the distribution of histological types in this study was similar to the previous studies, however the incidence of LC was found as increased in females in our study when compared to previous studies. Conclusion: We conclude that SCC is the most common histological type in patients with LC in our clinic and the male to female ratio for LC is decreasing.

Dilaver Ta?

2008-01-01

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Ten years of tuberculosis intervention in Greenland – has it prevented cases of childhood tuberculosis?  

Directory of Open Access Journals (Sweden)

Full Text Available Background: The incidence of tuberculosis (TB disease in Greenland doubled in the 1990s. To combat the increase, national TB interventions were initiated in 2000 and strengthened in 2007. Objective: To determine whether the effect of interventions could be detected, we estimated the TB disease risk among children?15 years before and after interventions were implemented. Design: For a study cohort, we recruited all children ?15 years of age included in the Greenlandic Civil Registration System (CRS from 1990 to 2010. The CRS identifier was used to link cohort participants with TB cases identified based on the Greenlandic National TB registry. Bacille Calmette Guerin (BCG vaccination status was identified through year of birth, as BCG was offered to newborns born either before 1991 or after 1996. Years with interventions were defined as 2000–2006 (primary interventions and 2007–2010 (intensified interventions. Risk of TB was estimated using Poisson regression. Results: The study included 35,858 children, of whom 209 had TB disease. The TB disease incidence decreased after interventions were implemented (2007–2010: IRR [incidence rate ratios] 0.62, 95% CI: 0.39–0.95, p=0.03, compared with the 1995–1999 period. The TB disease risk was inversely associated with BCG vaccination (IRR: 0.54, 95% CI: 0.41–0.72, p<0.001. Conclusions: Years with national TB interventions in Greenland, including neonate BCG vaccination, are associated with a lower TB disease incidence among children ?15 years of age.

Emilie Birch

2014-07-01

48

Native American Case Studies  

Science.gov (United States)

The Native American Case Studies collection includes more than 80 original, research-based teaching cases focusing on contemporary issues in Indian Country. Teaching notes accompany each case. These can be downloaded and used at no cost. Additional website resources include information on teaching with cases and assessment. Guidelines for submitting cases are also available.

The Evergreen State College

49

Comparative study of texture properties, color characteristics and chemical composition of ten white table grape varieties.  

OpenAIRE

The present study was carried out to compare ten white table grape varieties (Delizia del Vaprio, Matilde, Moscato di Terracina, Pansé precoce, Pizzutello bianco, Regina, Regina dei vigneti, Sublima seedless, Sultanina or Thompson seedless, Vincere) for their texture, color and chemical characteristics. It has been demonstrated in the literature that the consumer acceptability of table grapes depends on such factors as visual attributes, chemical constituents, nutritive values, m...

Gerbi, Vincenzo; Novello, Vittorino; Rolle, Luca Giorgio Carlo; Giacosa, Simone

2011-01-01

50

Case Study: Football Fanaticism  

Science.gov (United States)

This is a case study for undergraduate and professional degree students in anatomy, physiology and/or pharmaceutical sciences. In particular this case study explores the anatomy of the central nervous system, major motor and sensory tracts. Integrative physiology courses may use this case to incorporate the immune, nervous and cardiovascular systems. Users of the National Center for Case Study Teaching in Science will be required to register (free) to gain access to the answer key (and must be of teaching status to receive the key). Included in the resource are the case overview, objectives, case study, teaching notes and answer key.

PhD Dayton J Ford (St. Louis College of Pharmacy Department of Pharmaceutical Sciences)

2003-07-03

51

LITEE Case Studies  

Science.gov (United States)

The LITEE team has developed case studies designed to enhance student learning through direct participation in the decision-making process and development of higher-level cognitive skills. Case studies increase student interest in the engineering field and improve retention in engineering programs. Case Studies include lessons incorporating several different types of business models and are available to view online for free.

52

Pharmacological Studies of Ten Medicinal Plants Used for Analgesic Purposes in Congo Brazzaville  

Directory of Open Access Journals (Sweden)

Full Text Available The aim of this study was to assess ten plants from the Congolese pharmacopoeia for their analgesic activity as well as their cytotoxicity, in order to validate their traditional use. Thirty-three extracts were obtained in 3 different solvents (Water, Ethanol, DCM from these ten plants selected after an ethnobotanic survey in the region of the Pool (Congo Brazzaville: Leonotis nepetaefolia (Lamiaceae, Manotes pruinosa (Connaraceae, Spilanthes uliginosa (Asteraceae, Hymenocardia ulmoides (Euphorbiaceae, Celosia trigyna (Amaranthaceae, Cogniauxia podolaena (Cucurbitaceae, Brillantaisia patula (Acanthaceae, Urena lobata (Malvaceae , Mitracarpus scaber (Rubiaceae, Triumfetta rhomboidea (Tiliaceae. The writhing test (Siegmund Chemical Test was used for the pharmacological screening. The cytotoxicity of all the extracts was tested on KB (Human epidermoid carcinoma and Vero (African green monkey kidney cell lines with taxotere as positive control. A TLC chemical screening of the extracts was carried out to detect the major chemical classes present in the plants. The data of the traditional medicine were confirmed, since eight plants out of ten were active, aqueous and ethanolic extracts being the most active. Moreover, only C. podolaena leaf extracts were cytotoxic (87% of inhibition on KB. This work opens the way for the research of the active molecules from these plants and for their use as leads in the synthesis and the pharmacomodulation of compounds with analgesic potentiality.

Robin Janisson

2011-01-01

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In vitro antimicrobial activity of ten medicinal plants against clinical isolates of oral cancer cases  

Directory of Open Access Journals (Sweden)

Full Text Available Abstract Background Suppression of immune system in treated cancer patients may lead to secondary infections that obviate the need of antibiotics. In the present study, an attempt was made to understand the occurrence of secondary infections in immuno-suppressed patients along with herbal control of these infections with the following objectives to: (a isolate the microbial species from the treated oral cancer patients along with the estimation of absolute neutrophile counts of patients (b assess the in vitro antimicrobial activity medicinal plants against the above clinical isolates. Methods Blood and oral swab cultures were taken from 40 oral cancer patients undergoing treatment in the radiotherapy unit of Regional Cancer Institute, Pt. B.D.S. Health University, Rohtak, Haryana. Clinical isolates were identified by following general microbiological, staining and biochemical methods. The absolute neutrophile counts were done by following the standard methods. The medicinal plants selected for antimicrobial activity analysis were Asphodelus tenuifolius Cav., Asparagus racemosus Willd., Balanites aegyptiaca L., Cestrum diurnum L., Cordia dichotoma G. Forst, Eclipta alba L., Murraya koenigii (L. Spreng. , Pedalium murex L., Ricinus communis L. and Trigonella foenum graecum L. The antimicrobial efficacy of medicinal plants was evaluated by modified Kirby-Bauer disc diffusion method. MIC and MFC were investigated by serial two fold microbroth dilution method. Results Prevalent bacterial pathogens isolated were Staphylococcus aureus (23.2%, Escherichia coli (15.62%, Staphylococcus epidermidis (12.5%, Pseudomonas aeruginosa (9.37%, Klebsiella pneumonia (7.81%, Proteus mirabilis (3.6%, Proteus vulgaris (4.2% and the fungal pathogens were Candida albicans (14.6%, Aspergillus fumigatus (9.37%. Out of 40 cases, 35 (87.5% were observed as neutropenic. Eight medicinal plants (A. tenuifolius, A. racemosus, B. aegyptiaca, E. alba, M. koenigii, P. murex R. communis and T. foenum graecum showed significant antimicrobial activity (P P. aeruginosa was observed highest susceptible bacteria (46.6% on the basis of susceptible index. Conclusion It can be concluded that treated oral cancer patients were neutropenic and prone to secondary infection of microbes. The medicinal plant can prove as effective antimicrobial agent to check the secondary infections in treated cancer patients.

Kaushal Vivek

2011-05-01

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Hepatic resection for non-colorectal and non-neuroendocrine metastatic cancer: indications and results in ten resectable cases  

OpenAIRE

Objective: To report the early postoperative results and long-termsurvival on ten patients undergoing hepatectomy for treatmentof non-colorectal and non-neuroendocrine hepatic metastases.The study was carried out by the General Surgery Service of theDepartment of Digestive Tract Surgery of the Teaching Hospital ofthe Faculdade de Medicina do ABC, Santo André, São Paulo, Brazil.Methods: Complete follow-up data were available on 28 patientswith hepatic metastases who were operated on between ...

Sergio Renato Pais Costa; Sérgio Henrique Horta; Marcelo José Miotto; Maurício Campanelli Costas; Alexandre Cruz Henriques; Manlio Basílio Speranzini

2008-01-01

55

Geomagnetic response to solar activity: summary for the last ten years and analysis of selected cases  

Science.gov (United States)

The main sources of geomagnetic disturbances are either coronal mass ejections (CMEs), which are usually connected with eruptive flares, or high-speed streams of solar wind from coronal holes. Development of an eruptive flare and ejection of coronal mass is accompanied by magnetic reconnection. The evidence of reconnection can be found in a broad spectrum of observations. The observations of X-rays and radio bursts were used in our study. The geoeffectiveness of solar X-ray flares was initially analysed on data from the period 1996 - 2004 [1]. It was shown that the probability of geomagnetic response depends on the solar flare class and its position on the solar disc. The flares in the central region were found to be more geoeffective. The probability further increased if the flare was accompanied by Type II and/or Type IV of solar radio bursts. In the next step a neural network model was developed to determine the probability, with which flares will be followed by the geomagnetic response of a particular intensity. Enhancement of solar energetic particle flux was added to the set of input parameters. The results indicated that X-ray flares accompanied by solar radio bursts represent a good proxy of CMEs [2, 3]. This conclusion was now confirmed by the data from the period 2005 - 2012. Coronal holes are stable formations that can survive over several solar rotations. Corotating interaction regions (CIRs) between fast and slow solar wind can thus periodically pass over the Earth and cause recurrent geomagnetic storms. This periodicity makes the forecasts of the geomagnetic disturbances much easier [4] than in the case of eruptive phenomena. Our analysis confirmed that the strongest magnetic storms are caused by CMEs. Nevertheless, many geomagnetic disturbances in the active part of solar cycle are influenced by sequences of CMEs and CIRs, which increase their strength. [1] Bochní?ek, J., P. Hejda and F. Valach, Solar energetic events in the years 1996-2004. The analysis of their geoeffectiveness, Studia Geophysica et Geodaetica, 51, Issue 3, doi: 10.1007/s11200-007-0025-4, 439-447, 2007. [2] Valach, F., P. Hejda, and J. Bochní?ek, Geoeffectiveness of XRA events associated with RSP II and/or RSP IV estimated using the artificial neural network, Studia Geophysica et Geodaetica, 51, Issue 4, doi: 10.1007/s11200-007-0032-5, 551-562, 2007. [3] Valach, F., M. Revallo, J. Bochní?ek, and P. Hejda, Solar energetic particle flux enhancement as a predictor of geomagnetic activity in a neural network-based model, Space Weather, 7, S04004, doi:10.1029/2008SW000421, 2009. [4] Bochní?ek, J. and P. Hejda,. Areas of minimum intensity of soft X-rays as sources of solar wind high-speed streams. J. Atm Solar-Ter. Phys, 64, 511-515,2002.

Hejda, Pavel; Bochní?ek, Josef; Valach, Fridrich; Revallo, Miloš

2014-05-01

56

A pilot study on using acupuncture and transcutaneous electrical nerve stimulation (TENS to treat knee osteoarthritis (OA  

Directory of Open Access Journals (Sweden)

Full Text Available Abstract Background The present study tests whether a combined treatment of acupuncture and transcutaneous electrical nerve stimulation (TENS is more effective than acupuncture or TENS alone for treating knee osteoarthritis (OA. Methods Thirty-two patients with knee OA were randomly allocated to four groups. The acupuncture group (ACP received only acupuncture treatment at selected acupoints for knee pain; the TENS group (TENS received only TENS treatment at pain areas; the acupuncture and TENS group (A&T received both acupuncture and TENS treatments; the control group (CT received topical poultice (only when necessary. Each group received specific weekly treatment five times during the study. Outcome measures were pain intensity in a visual analogue scale (VAS and knee function in terms of the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC. Results The ACP, TENS and A&T groups reported lower VAS and WOMAC scores than the control group. Significant reduction in pain intensity (P = 0.039 and significant improvement in knee function (P = 0.008 were shown in the A&T group. Conclusion Combined acupuncture and TENS treatment was effective in pain relief and knee function improvement for the sampled patients suffering from knee OA.

Ochi Hideki

2008-02-01

57

Karyological studies in ten different populations of desert lily aloe vera from pakistan  

International Nuclear Information System (INIS)

To enhance theoretical basis of Aloe feeding and provide cytological basement, the karyotype and morphology of mitotic chromosomes, ten different populations of Aloe vera collected from various geographical locations of Karachi, Pakistan were studied by aceto-orcein staining technique. The results showed that chromosome number of Aloe vera is 2n=14. The karyotype is bimodal and consists of 14 chromosomes (8 large and 6 small) predominantly with submedian, median and subterminal centromere. Average chromosome lengths among populations ranged from 7.95-2.36 micro m. (author)

58

HURI SURI: Case Studies  

Science.gov (United States)

The HURI SURI project is developing a regional biotechnology workforce pipeline by expanding and supporting biotechnology research experiences for Jamestown Community College (JCC) undergraduates and disseminating these research experiences and materials to area high school teachers and students. This page includes two case studies, "Mosquito and walbachia" and "Heartworm Experimental Design." Students will examine these case studies and then complete the worksheet for the SCA in class case study

59

Meta-analysis of genome-wide association studies identifies ten loci influencing allergic sensitization.  

Science.gov (United States)

Allergen-specific immunoglobulin E (present in allergic sensitization) has a central role in the pathogenesis of allergic disease. We performed the first large-scale genome-wide association study (GWAS) of allergic sensitization in 5,789 affected individuals and 10,056 controls and followed up the top SNP at each of 26 loci in 6,114 affected individuals and 9,920 controls. We increased the number of susceptibility loci with genome-wide significant association with allergic sensitization from three to ten, including SNPs in or near TLR6, C11orf30, STAT6, SLC25A46, HLA-DQB1, IL1RL1, LPP, MYC, IL2 and HLA-B. All the top SNPs were associated with allergic symptoms in an independent study. Risk-associated variants at these ten loci were estimated to account for at least 25% of allergic sensitization and allergic rhinitis. Understanding the molecular mechanisms underlying these associations may provide new insights into the etiology of allergic disease. PMID:23817571

Bønnelykke, Klaus; Matheson, Melanie C; Pers, Tune H; Granell, Raquel; Strachan, David P; Alves, Alexessander Couto; Linneberg, Allan; Curtin, John A; Warrington, Nicole M; Standl, Marie; Kerkhof, Marjan; Jonsdottir, Ingileif; Bukvic, Blazenka K; Kaakinen, Marika; Sleimann, Patrick; Thorleifsson, Gudmar; Thorsteinsdottir, Unnur; Schramm, Katharina; Baltic, Svetlana; Kreiner-Møller, Eskil; Simpson, Angela; St Pourcain, Beate; Coin, Lachlan; Hui, Jennie; Walters, Eugene H; Tiesler, Carla M T; Duffy, David L; Jones, Graham; Ring, Susan M; McArdle, Wendy L; Price, Loren; Robertson, Colin F; Pekkanen, Juha; Tang, Clara S; Thiering, Elisabeth; Montgomery, Grant W; Hartikainen, Anna-Liisa; Dharmage, Shyamali C; Husemoen, Lise L; Herder, Christian; Kemp, John P; Elliot, Paul; James, Alan; Waldenberger, Melanie; Abramson, Michael J; Fairfax, Benjamin P; Knight, Julian C; Gupta, Ramneek; Thompson, Philip J; Holt, Patrick; Sly, Peter; Hirschhorn, Joel N; Blekic, Mario; Weidinger, Stephan; Hakonarsson, Hakon; Stefansson, Kari; Heinrich, Joachim; Postma, Dirkje S; Custovic, Adnan; Pennell, Craig E; Jarvelin, Marjo-Riitta; Koppelman, Gerard H; Timpson, Nicholas; Ferreira, Manuel A; Bisgaard, Hans; Henderson, A John

2013-08-01

60

Meta-analysis of genome-wide association studies identifies ten loci influencing allergic sensitization.  

DEFF Research Database (Denmark)

Allergen-specific immunoglobulin E (present in allergic sensitization) has a central role in the pathogenesis of allergic disease. We performed the first large-scale genome-wide association study (GWAS) of allergic sensitization in 5,789 affected individuals and 10,056 controls and followed up the top SNP at each of 26 loci in 6,114 affected individuals and 9,920 controls. We increased the number of susceptibility loci with genome-wide significant association with allergic sensitization from three to ten, including SNPs in or near TLR6, C11orf30, STAT6, SLC25A46, HLA-DQB1, IL1RL1, LPP, MYC, IL2 and HLA-B. All the top SNPs were associated with allergic symptoms in an independent study. Risk-associated variants at these ten loci were estimated to account for at least 25% of allergic sensitization and allergic rhinitis. Understanding the molecular mechanisms underlying these associations may provide new insights into the etiology of allergic disease.

BØnnelykke, Klaus; Matheson, Melanie C

2013-01-01

61

Ten years of siting studies and public dialogue: the main lessons learnt at SKB  

International Nuclear Information System (INIS)

It is more than 20 years since a co-ordinated nuclear waste management programme was set up in Sweden. Deep geological disposal of spent nuclear fuel in crystalline bedrock is the preferred option and an extensive R and D programme has been performed. A step-wise approach is being applied to development, technical demonstration and implementation of the disposal system. A key element of the programme is siting of the deep repository, which started in a focused manner almost ten years ago. Before that time a study-site drilling programme was performed 1977-85 and facilities for intermediate storage of the spent fuel (CLAB), final disposal of low and medium level waste (SFR) and underground research (Aespoe Hard Rock Laboratory) were sited during the 1980's [1, 2]. Thus, siting-related experiences to date within SKB encompasses: - Deep-drilling programme at about ten study-sites (1977-85). - Siting of CLAB, 1976-79. - Siting of SFR, 1980-83. - Siting of Aespoe HRL, 1986-90. - Feasibility studies on a voluntary basis in two municipalities in northern Sweden, Storuman and Mala, including local referenda 1995 and 1997. - Feasibility studies on a voluntary basis in six municipalities, Oesthammar, Nykoeping, Oskarshamn, Tierp, Hultsfred, Aelvkarleby, 1995-2001. By the end of this year SKB will present a comprehensive plan for the continuation of the siting programme at a few sites selected from the six municipalities where feasibility studies are now being finished. (author)y studies are now being finished. (author)

62

Hemicrania continua: a report of ten new cases Hemicrania continua: relato de dez novos casos  

OpenAIRE

Hemicrania continua (HC) is an uncommon primary headache first described as a syndrome in 1984. Being quite unusual, its clinical characterization still demands better description. The aim of this study is to present the main clinical characteristics of 10 patients with the diagnosis of HC seen in a tertiary center, critically discussing their main features. All subjects had strictly unilateral headache without side shift and absolute response to indomethacin. Seven patients (70%) presented a...

Bigal, Marcelo E.; Tepper, Stewart J.; Sheftell, Fred D.; Rapoport, Alan M.

2002-01-01

63

Mercury Studies around the Mediterranean Sea Basin: Ten years of Measurements and Modeling results  

Directory of Open Access Journals (Sweden)

Full Text Available Only a few years ago the presence of Reactive Gaseous Mercury (RGM was believed to be almost exclusively the result of anthropogenic emissions and that sustained high RGM concentrations in the MBL were not considered likely. During the past ten years, an in-depth investigation was carried out in the Marine Boundary Layer (MBL of the Mediterranean Sea to quantify and possibly explain spatial and temporal patterns of Hg-species concentrations. This paper provides an overview of modeling results and atmospheric measurements performed during several cruise campaigns performed aboard the Research Vessel (RV URANIA of the CNR over the Mediterranean sea basin. RGM concentrations have been modelled using a photochemical box model of the MBL and compared to measured data obtained during the research cruises. The comparison results supports the hypothesis that there are daytime mercury oxidation reactions occurring which have not yet been identified. Major findings of key studies carried out during ten years of ship-borne activities have been highlighted.

Sprovieri F.

2013-04-01

64

Materials Failure Case Studies  

Science.gov (United States)

This website offers innovative course materials for teaching engineering design and analysis through failure case studies, supporting the integration of research in forensic engineering into undergraduate education. The site includes an introduction to the overall project and a bibliography as well as typical civil engineering and engineering mechanics courses, with over 50 case studies currently listed. This web site is a companion to the book Beyond Failure: Forensic Case Studies for Civil Engineers, Delatte, Norbert J., ASCE Press. The site is a living document that will supplement the book with web links, additional information, and supplemental illustrations. At this time, not all of the cases have been filled in yet.

Delatte, Norbert J., Jr.

2008-12-12

65

PSU Case Studies  

Science.gov (United States)

How does one teach ethics? It can be a difficult subject and different fields (medicine, law, and so on) all have different ethical considerations and issues. This fine collection of engineering case studies from the Pennsylvania State University College of Engineering brings together resources from a variety of universities that have worked to address this matter. The cases are divided into separate areas that include Developing and Using Case Studies, General Science Cases, and Research Integrity Cases. Visitors shouldn't miss the bulk of the material covered in the General Engineering Cases area, which includes high-quality and contemplative materials on engineering practice ethics from SUNY-Buffalo and the National Science Foundation. The site is rounded out by a number of helpful cases developed in-house by Penn State engineering students.

2013-04-26

66

Study on the 123Te(n,??)120Sn reaction on resonance neutrons  

International Nuclear Information System (INIS)

The results of the study of the 120Te(n,??)120Sn reaction on resonance neutrons are given. The study was undertaken in order to derive information on primary soft ?-transitions. The GITAsub(??) width was measured in the 2.33 eV resonance and the upper estimate for GITAsub(??) width in the 24.1 eV resonance was obtained. The value of radiative strength function for soft ?- transitions Ssub(?)sup(cc), calculated on its basis, turned out to be a little less than the Ssub(?)sup(cc) mean value for other nuclei. The result obtained is discussed in connection with the hypothesis concerning possible correlation of Ssub(?)sup(cc) with neutron strength function value S0

67

Harry Benjamin's first ten cases (1938-1953): a clinical historical note.  

Science.gov (United States)

The value in studying Dr. Harry Benjamin's first gender dysphoria patients is in learning how they described themselves--without any books to read, without any other source of information, assuming that he or she was alone and unlike anyone else in the world--and before hardly any literature on the subject had been published. Just as today, Benjamin's earliest patients came to him self-diagnosed. Even without the terminology currently available, their early descriptions of this unique phenomenon are identical with cross-gender identity patients who present themselves today: a recognition of the condition very early in their lives; the attempts at cross-dressing; the secrecy; the guilt; the unsuccessful attempts at suppressing desires and feelings; the episodic and continuous purging. These early individuals who suffered from gender conflicts had discovered Benjamin who would try to understand their unusual dilemma and be a barometer and a guide for the changes they would make. Their early individualistic perceptions provided insights that led to the birth of a new discipline. These 10 people must be lauded for their courage in seeking a description and a solution for a phenomenon that had no description and no treatment. PMID:7733806

Schaefer, L C; Wheeler, C C

1995-02-01

68

Hemicrania continua: a report of ten new cases / Hemicrania continua: relato de dez novos casos  

Scientific Electronic Library Online (English)

Full Text Available Hemicrania continua (HC) é uma cefaléia primária relativamente incomum primeiramente descrita enquanto sindrome em 1984. Por ser relativamente rara, sua apresentação clínica ainda carece de melhor descrição. O objetivo do presente estudo é apresentar e criticamente discutir as principais característ [...] icas clínicas de 10 pacientes com HC consecutivamente vistos em um centro de atendimento especializado. Todos os pacientes apresentavam cefaléia estritamente unilateral, sem alternância de lado e com absoluta resposta a indometacina. Sete pacientes (70%) apresentavam sinais autonômicos durante a exacerbação da dor. Quatro (40%) apresentavam sintomas migranosos durante as exacerbações e um apresentava alívio parcial com diidroergotamina. Um paciente apresentava exacerbações excruciantemente severas. Embora as principais características da HC - dor continua, unilateral, responsiva à indometacina - permaneçam extremamente associados à sindrome, um refinamento na caracterização clínica é necessário. Abstract in english Hemicrania continua (HC) is an uncommon primary headache first described as a syndrome in 1984. Being quite unusual, its clinical characterization still demands better description. The aim of this study is to present the main clinical characteristics of 10 patients with the diagnosis of HC seen in a [...] tertiary center, critically discussing their main features. All subjects had strictly unilateral headache without side shift and absolute response to indomethacin. Seven patients (70%) presented autonomic features during pain exacerbations. Four (40%) had migrainous symptoms during the exacerbations and one presented partial relief with dihydroergotamine. One patient had pain excruciatingly severe during the exacerbations. Although the cardinal features of HC - continuous, unilateral, indomethacin responsive, remain strongly reliable, a refinement on the clinical characterization is needful and desired.

Marcelo E., Bigal; Stewart J, Tepper; Fred D., Sheftell; Alan M., Rapoport.

2002-09-01

69

Case Study: Trigger Cases Versus Capstone Cases  

Science.gov (United States)

Is it better to use a case at the beginning of a topic or at the end? To answer this, we need to examine both trigger and capstone cases in terms of their goals. The answer is not so inscrutable--it clearly depends upon your goal. Both trigger and capstone cases have their place, but the author would contend that if you wish to really engage a student in a subject, one can hardly do better than to start with an interesting, current, and controversial topic. And even if you sneak in a bunch of scientific lingo that initially doesn't make sense, a trigger case can surely prompt a student to want to learn more about the topic. And that is one heck of a great way to begin a day.

Clyde Freeman Herreid

2008-12-01

70

HYDROGEOLOGIC CASE STUDIES  

Science.gov (United States)

Hydrogeology is the foundation of subsurface site characterization for evaluations of monitored natural attenuation (MNA). Three case studies are presented. Examples of the potentially detrimental effects of drilling additives on ground-water samples from monitoring wells are d...

71

A Ten Year Descriptive Study of Adult Leukaemia at Al-Jomhori Teaching Hospital in Sana'a, Yemen  

Directory of Open Access Journals (Sweden)

Full Text Available Background: There is scarcity of data of the epidemiology of leukaemia in Arab countries including Yemen. Understanding patterns of leukaemia underpins epidemiology and can provide insight into disease etiology. The aim of this research is to determine the epidemiologic pattern of adult leukaemia in Yemen. Methods: The research is a descriptive cross-sectional study. We analyzed the data of 702 adult patients with leukaemia, who were newly diagnosed over a ten-year period between October 1999 and October 2009 at the referral haematology centre in Sana’a at Al-Jomhori Teaching Hospital, according to type of leukaemia, age, sex, geographic distribution and time of diagnosis. Results: Acute Myeloid Leukaemia (AML was found to be the most common (45.1% followed by Chronic Myeloid Leukaemia (CML (26.5%, Acute Lymphoid Leukaemia (ALL (17.7% and Chronic Lymphoid Leukaemia (CLL (10.7%, respectively. There was an almost equal prevalence of AML and CML for males and females but males had significantly more cases of ALL and CLL (p =0.008. A significant variation in geographic pattern showed that the highest number of cases is seen the Central mountainous region and the least number of cases in the South-eastern region which is coastal and lowland (p<0.001. The seasonal variation showed that higher number of ALL cases was seen in the summer months (33% compared with other seasons (21% in the spring, 24.2% in autumn and 21.8% in winter. Conclusions: The pattern of adult leukaemia in Yemen is different from that seen in western countries which could be attributed to different environmental exposure. The geographic pattern indicates a possible role of certain environmental factors which warrant further investigations. The pattern of seasonal variation needs further studies for evaluating the seasonality.

Jameel Al-Ghazaly

2014-12-01

72

Prehospital trauma care reduces mortality. Ten-year results from a time-cohort and trauma audit study in Iraq  

Directory of Open Access Journals (Sweden)

Full Text Available Abstract Background Blunt implementation of Western trauma system models is not feasible in low-resource communities with long prehospital transit times. The aims of the study were to evaluate to which extent a low-cost prehospital trauma system reduces trauma deaths where prehospital transit times are long, and to identify specific life support interventions that contributed to survival. Methods In the study period from 1997 to 2006, 2,788 patients injured by land mines, war, and traffic accidents were managed by a chain-of-survival trauma system where non-graduate paramedics were the key care providers. The study was conducted with a time-period cohort design. Results 37% of the study patients had serious injuries with Injury Severity Score ? 9. The mean prehospital transport time was 2.5 hours (95% CI 1.9 - 3.2. During the ten-year study period trauma mortality was reduced from 17% (95% CI 15 -19 to 4% (95% CI 3.5 - 5, survival especially improving in major trauma victims. In most patients with airway problems, in chest injured, and in patients with external hemorrhage, simple life support measures were sufficient to improve physiological severity indicators. Conclusion In case of long prehospital transit times simple life support measures by paramedics and lay first responders reduce trauma mortality in major injuries. Delegating life-saving skills to paramedics and lay people is a key factor for efficient prehospital trauma systems in low-resource communities.

Murad Mudhafar K

2012-02-01

73

Building Their Stories: Electronic Case Studies of Struggling Readers  

Science.gov (United States)

Ten university graduate students created electronic case studies describing the learning of struggling readers as a part of this study designed to yield insights about literacy education and the efficacy of electronic case study development. A variety of data, analyzed through a qualitative content analysis, revealed understandings regarding…

Atkinson, Terry S.; Williams, Sarah C.

2006-01-01

74

Mutagenesis studies on TenA: a thiamin salvage enzyme from Bacillus subtilis  

OpenAIRE

TenA catalyzes the hydrolysis of 4-amino-5-aminomethyl-2-methylpyrimidine and participates in the salvage of base-degraded thiamin. Here we describe mutagenesis of the active site of TenA guided by structures of the enzyme complexed to a substrate analog and to the product. Catalytic roles for each of the active site residues are identified and a mechanism for the reaction is described.

Jenkins, Amy L.; Zhang, Yang; Ealick, Steven E.; Begley, Tadhg P.

2007-01-01

75

Penile cutaneous horn ten years after treatment of verrucous squamous cell carcinoma on penile glans: case report.  

Science.gov (United States)

Penile cutaneous horn is a clinical term that describes protruding hyperkeratosis, usually conical in shape, located on penile glans. Penile localization of this lesion, predominantly located on sun-exposed areas, is very rare. The association with malignancy on the penis makes proper identification of these lesions essential. We present a 45-year-old man with a cutaneous horn, 25 mm in size, located on the basis of penile glans. The patient had a history of phimosis, pseudoepitheliomatous balanoposthitis, surgical excision of penile verrucous squamous cell carcinoma (SCC) and postoperative radiotherapy of carcinoma in situ on the same localization, ten years before. Complete surgical removal of the horn with separate excision of the margins and base was done. Pathologic examination revealed squamous hyperplasia with suspicion of carcinoma in situ. Additional negative p16(INK4a) immunohistochemical analysis confirmed benign proliferative lesion. DNA polymerase chain reaction for human papilloma virus infection was negative. These findings suggested sparing surgical procedure in our patient, without indication for partial penile amputation, but with mandatory follow-up. Our case confirmed the association of pseudoepitheliomatous balanoposthitis with verrucous SCC, as well as the possible influence of radiotherapy on the development of penile cutaneous horn. Additionally, we showed the important role p16(INK4a) immunohistochemical analysis in the differential diagnosis of alterations adjacent to invasive SCC of the penis. PMID:22507472

Mokos, Ivica; Bukvi? Mokos, Zrinka; Ljubojevi?, Suzana; Cori?, Marijana; Grce, Magdalena; Michal, Michal

2012-01-01

76

Engineering Case Studies  

Science.gov (United States)

This website on Engineering Case Studies has been developed by Geza Kardos from the Department of Mechanical and Aerospace Engineering and Neal Holtz from the Department of Civil and Environmental Engineering at Carleton University, Ottawa, Canada, in collaboration with the RHIT Logo Rose-Hulman Institute of Technology in Terre Haute, Indiana, and the American Society for Engineering Education, and the Canadian Design Engineering Network. They have gathered together a collection of information on engineering cases which provide accounts of real engineering projects. The collection of over 250 cases is intended for use in engineering education but may also be of interest to armchair engineers. Abstracts provide an overview of the case and a search function and classification system help visitors navigate the collection. They also provide an overview on how to write engineering cases, how to use engineering cases in the classroom, and "a short treatise on the use of engineering cases." Workshop notes and background on using engineering cases to introduce more design content into the engineering curriculum may also be of interest to educators.

77

Granuloma central de células gigantes: presentación de diez casos / Central giant cell granuloma: presentation of ten cases  

Scientific Electronic Library Online (English)

Full Text Available Fundamento: el granuloma central de células gigantes (GCCG) es una lesión que ocupa el 7 % de los tumores benignos que se encuentra exclusivamente en los maxilares. Se presenta con más frecuencia en mujeres que en hombres y predomina en la segunda y tercera década de la vida. Las características rad [...] iográficas del GCCG son variables y pueden ser confundidas con otras lesiones de los maxilares. El GCCG puede tener un comportamiento agresivo lo que permite establecer el tratamiento de elección, incluyendo la enucleación, el curetaje y la resección en bloque de la lesión. Caso clínico: se presentaron diez casos de pacientes diagnosticados con GCCG. El 80 % de los casos se localizaron en la mandíbula con las siguientes características clínicas: asimetría facial, desplazamiento dental, reabsorción radicular, alteración de la oclusión y trastorno nervioso. Conclusiones: en cuatro sujetos se realizó resección en bloque con placa de reconstrucción, mientras que en los otros seis pacientes se llevó a cabo enucleación y curetaje. En el 100 % de los casos se efectuó un abordaje intraoral y no se presentaron complicaciones graves. El seguimiento clínico y radiográfico evidenció recidiva en uno de los pacientes, razón por la cual se precedió a realizar resección en bloque con placa de reconstrucción. Abstract in english Background: central giant cell granuloma (CGCG) is a lesion that occupies 7 % of benign tumors found exclusively in the jaws. It occurs more frequently in women than in men and predominates in the second and third decades of life. Radiographic features of CGCG are changeable, and may be confused wit [...] h other jaws' lesions. The CGCG may have aggressive behavior which allows setting the treatment of choice, including enucleation, curettage and resection of the lesion. Clinical case: ten cases of patients diagnosed with CGCG were presented. The 80 % of the cases were located in the jaw with the following clinical features: facial asymmetry, dental displacement, root resorption, altered occlusion and nerve disorder. Conclusions: in four patients resection in block was performed with reconstruction plate, while in six other patients enucleation and curettage was carried out. In the 100 % of the cases an intraoral approach was made without severe complications. There was clinical and radiographic evidence of recidivation in one of the patients, a resection with reconstruction plate was made.

Francisco Levi, Duque Serna; Lina María, Franco; Carlos Martín, Ardila Medina.

2012-10-01

78

Nuclear medicine case studies  

International Nuclear Information System (INIS)

This text presents case studies in nuclear medicine which emphasize the diagnosis of the patient's problem rather than the technical performance of the procedure. The book is arranged by organ systems and each section begins with a description of the technique and findings in a normal study

79

Tumors of the liver; a ten year study in Children Medical Center  

Directory of Open Access Journals (Sweden)

Full Text Available Background: The aim of this study was to review the frequency, histopathology and outcome in children with tumors of the liver. Methods: Included in this retrospective/descriptive study were 30 children treated for liver tumors from 1375-1384 (ca. 1996-2005, at Children’s Hospital Medical Center, Tehran, Iran. We included the clinical, radiologic, and pathologic data of our patients, focusing on the frequency, etiology and outcome. Results: Patient ages ranged from three months to 12 years (median 3.8 years, with 18 males (60% and 12 females (40%. Of these, 17 patients had hepatoblastoma (55.66%, including 13 males and four females, with an age range of six months to five years. Four cases (13.33% had neuroblastoma. Hepatocellular carcinoma (HCC was found in three cases (10%, all of whom were carriers of hepatitis B. Two cases (6.66% were diagnosed with mesenchymal hamartoma, two cases (6.66% with hemangioendothelioma and two cases (6.66% with rhabdomyosarcoma and leiomyosarcoma of the biliary tract. Abdominal swelling and hepatomegaly were seen in all of patients. Jaundice was observed in two cases. Serum alpha-fetoprotein levels greater than 500 ng/ml were seen in 17 cases (56.66%. All patients were receiving specific treatment. The three-year survival rate was 65% for hepatoblastoma and 2% for HCC Conclusion: With the introduction of specific treatment, the survival rate for children with tumors of the liver has significantly increased. Further improvement can be achieved using diagnostic biopsy for hepatoblastoma, although it may result in complications, and preoperative chemotherapy followed by complete surgical excision (per International Society of Pediatric Oncology guidelines, yielding an outstanding survival rate of 80%.

Farahmand F

2007-06-01

80

Innovation for Sustainable Tourism : International Case Studies  

OpenAIRE

Innovation is the key to responding to the future challenges that confront all sectors of society and the economy, and especially in tourism. Within tourism, there are numerous corporations and destinations around the world that are responding to the ecological, social and economic challenges and making the transformation toward sustainability through innovation. This book assembles ten case studies of large and small enterprises and destinations in developed and developing nations that are p...

Carlsen, Jack; Edwards, D.; Forde, P.

2008-01-01

81

Do Karst Rivers “deserve” their own biotic index? A ten years study on macrozoobenthos in Croatia  

Directory of Open Access Journals (Sweden)

Full Text Available In this study we present the results of a ten year survey of the aquatic macroinvertebrate fauna along four karst rivers: Jadro, Žrnovnica, Grab and Ruda, all of them situated in the Middle Dalmatia region of Croatia, in an attempt to construct the Iliric Biotic Index, which will be more applicable for the water quality analysis than the most frequently applied biotic index in Croatia, the Italian Modification of Extended Biotic Index. The rivers geologically belong to the Dinaric karst, unique geological phenomena in Europe. Benthic macroinvertebrates were collected along each river at 15 sites by standard methods of sampling along with several physicochemical parameters, including: temperature, dissolved oxygen, carbon dioxide, alkalinity, hardness and pH. Univariate and multivariate techniques revealed differences in the macroinvertebrate community structure as well as in physicochemical parameters between the Karst rivers and continental rivers. Based on those differences, the Iliric Biotic Index was proposed as the standard of karst river water quality in Croatia in accordance with the EU Water Framework Directive. Differences between the Iliric Biotic Index and the most commonly used biotic indices in the European Community and the USA (The Biological Monitoring Working Party (B.M.W.P. scores, i.e. Extended Biotic Index, Indice Biotique, Family Biotic Index suggest that karst rivers need a new biotic index.

Ra?a Biljana

2010-07-01

82

Regulatory reform - case studies  

International Nuclear Information System (INIS)

This report focuses on issues associated with the President's regulatory reform program. The objectives of reform are related to the reduction of overall schedules and to the lowering of costs by reducing construction and engineering manpower, equipment costs and commodities. Consistent with these objectives is the goal to provide a more practical approach to engineering design and construction consistent with realistic safety goals. In order to assist DOE in its responsibility to recommend improvements to the nuclear regulatory process, specific examples of regulatory requirements and their industrial interpretation were sought on a case study basis. The case studies program is aimed at exploring the commodity and labor productivity aspects of piping, electrical systems, and concrete. Five nuclear power plant projects and a fossil project were visited for the case studies to determine design and construction procedures and relative productivity. The paper summarizes the findings

83

Perinatal Mortality And Pregnancy Wastage In Ten Punjab Villages During 1991-1996 - A Population Based Study  

Directory of Open Access Journals (Sweden)

Full Text Available Research question: What is the extent of perinatal mortality and pregnancy wastage in rural Punjab and what are risk factors for the same. Objective: To quantify the perinatal; wastage and risk factors including the prevalence of these factors to determine the loss attributable to these factors in ten Punjab villages during the period 1991-1996. Study Design: Case control. Sample Size: 2519 pregnant women with Known outcome of pregnancy. Study Variables: Cause, timing and factors affecting perinatal mortality and pregnancy wastage (viz Wt.<40kg; Ht, <152cm,BMI, <20 illiteracy, birth to conception interval <100wks, Prematurity (Gestation <37 wks. Registered in IIIrd trimester, Registered in IInd Trimester, Home delivery. Outcome variables: Contribution of these factors in perinatal loss and pregnancy wastage. Analysis; Percentages, Odds ratio, confidence interval and population attributable risk%. Results: The perinatal mortality rate was 34.57/1000 and pregnancy wastage was 7.23%. Prematurity was the leading cause of perinatal loss. 31.25% of perinatal deaths took place within 24 hours and 87.5% within 96 hours. In case of perinatal mortality the odds ration were significant (p<0.05 for the following risk factors: weight, height, body mass index, illiteracy, birth to conception interval <1000 weeks, prematurity, registration of pregnancy in IInd trimester, registration of pregnancy in IIIrd trimester, home delivery. In case of pregnancy wastage the odds ratio were significant for the following risk factors: weight, height, body mass index, illiteracy, birth to conception interval <100weeks, prematurity, past history of abortion and low socio-economic status.

Sachar R.K

1998-01-01

84

Hepatic resection for non-colorectal and non-neuroendocrine metastatic cancer: indications and results in ten resectable cases  

Directory of Open Access Journals (Sweden)

Full Text Available Objective: To report the early postoperative results and long-termsurvival on ten patients undergoing hepatectomy for treatmentof non-colorectal and non-neuroendocrine hepatic metastases.The study was carried out by the General Surgery Service of theDepartment of Digestive Tract Surgery of the Teaching Hospital ofthe Faculdade de Medicina do ABC, Santo André, São Paulo, Brazil.Methods: Complete follow-up data were available on 28 patientswith hepatic metastases who were operated on between January2002 and January 2007. Ten patients presented non-colorectal andnon-neuroendocrine primary neoplasms, and comprised the sampleof this study. There were five males and five females, mean age of53 years (28 to 68 years. The right lobe was involved in five patientsand the left lobe in five individuals. The number of metastasesranged from one to four. All metastases were unilateral. All primarytumors were identified. The histological types were adenocarcinoma(n = 7, germinative tumor (n = 1, melanoma (n = 1 and sarcoma(n = 1. The primary sites were: gastric (n = 1, kidney (n = 1,adrenal (n = 1, breast (n = 2, testicle (n = 1, ovary (n = 2,acral melanoma (n = 1 and retroperitoneal sarcoma (n = 1. Allpatients presented metachronous metastases. The median intervalbetween primary tumor treatment and diagnosis of metastases was20 months (12 to 33 months. Six patients received chemotherapyand four patients underwent exclusively surgical treatment. Results:There were seven major hepatic resections (three or more Couinaudsegments and three minor hepatic resections. The operative timevaried from 180 to 425 minutes with a median duration of 240minutes. Five patients received transfusions; blood loss ranged from200 to 3,000 ml. There were two postoperative complications andboth patients were re-operated (biliary fistula = 1; intra-abdominalabscess = 1. There were no postoperative deaths. All resectionswere R0. The three-year overall survival rate was 50%. Five patientsdeveloped tumor recurrence (50%. Conclusions: Hepatic resectionfor liver metastases other than of colorectal or neuroendocrine originpresents acceptable morbidity and no mortality. This approach mayresult in long-term survival in this group of patients.

Sergio Renato Pais Costa

2008-03-01

85

STRUCTURED CASE REVIEW STUDY.  

Science.gov (United States)

THIS STUDY EXAMINES A PROCEDURE FOR USING THE WRITTEN CASE RECORD AS A CRITERION FOR EVALUATING REHABILITATION COUNSELOR PERFORMANCE IN STATE "DVR" (STATE-FEDERAL GENERAL VOCATIONAL REHABILITATION PROGRAM) AGENCIES. THE RESEARCHERS OUTLINE CERTAIN OBJECTIVES (TECHNICAL, AGENCY SERVICES, AND STAFF DEVELOPMENT) AS DESIRABLE IN THE EVALUATION…

MILLER, LEONARD A.; MUTHARD, JOHN E.

86

Nesidioblastosis: a case study.  

Science.gov (United States)

Hypoglycemia is a common problem among neonates. Transient in nature, it usually resolves with an increase in glucose intake. However, as clinicians, we must recognize that prolonged hypoglycemia may be caused by increased insulin production. Nesidioblastosis is one cause of persistent hyperinsulinism of the newborn. This case study reviews fetal physiology, neonatal presentation, and treatment. PMID:9325879

Starbuck, A L

1997-09-01

87

The Result of The Treatment of Infantile Spasm After Two Year Follow-Up Review Of 45 Cases in Ten Past Years  

Directory of Open Access Journals (Sweden)

Full Text Available In the past ten years, 45 cases of infantile spasm treated in our center. From these patients, 15 cases received only steroid, other 15 cases only clonazepam, and the rest, a combination of clonazepam and steroid. All patients were observed for two years. This is a retrospective study, the data being extracted from patients record. A number of patients were treated in ambulatory and the others were patients of the hospital. The result of comparison of optimal control of seizures are as follow: 1 In only steroid group 27 percent of the patients were free of seizure, 2 In only clonazepam group 28 percent showed no seizure, 3 in combined clonazepam and steroid group 39% were seizure-free. Based on this trial we believe that treatment of infantile spasm with combined steroid and clonazepam is better than any of them alone. Considering these results, we believe that the treatment of infantile spasm with a combination of steroid and clonazepam is preferable to these drugs.

A Nasirian

2001-06-01

88

Prague Case Study Report.  

Czech Academy of Sciences Publication Activity Database

Aarau : Centre for Democracy Studies Aarau (ZDA), 2014 - (Widmer, C.; Kübler, D.), s. 131-177 ISBN 978-3-9524228-2-3 R&D Project s: GA AV ?R IAA700280802 Institutional support: RVO:68378025 Keywords : urban neighbourhods * regeneration * Prague Subject RIV: AD - Politology ; Political Sciences http://www.zdaarau.ch/dokumente/en/ZDA_Working-Papers/No3_RUN_case-studies_2014.pdf

Kostelecký, Tomáš; Pato?ková, V?ra; Illner, Michal; Vobecká, Jana; ?ermák, Daniel

89

Primary Embryonal Lung Carcinoma and Testicular Seminoma in the Same Patient Ten-Years Later: Case-Report and Literature Review  

Directory of Open Access Journals (Sweden)

Full Text Available Primary germ cell tumors of lung are extremely rare. The prognosis is usually poor, with various symptoms seriously affecting quality of life. In this paper we describe the unique case of a patient affected by an embryonal carcinoma of lung and a testicular seminoma after ten years. We also report literature about pulmonary extragonadal germ cell tumors.

Piera Federico

2012-05-01

90

Ten-year clinico-statistical study of oral squamous cell carcinoma  

International Nuclear Information System (INIS)

This clinico-statistical study includes 232 cases of oral squamous cell carcinoma that underwent radical treatment in the Department of Oral and Maxillofacial Surgery, Yokohama City University Hospital, during the decade from 1991 to 2000. Surgery was principally adopted as the first line for treatment in 199 cases, and radiotherapy in 33 cases. The 5-year overall survival rate was 73.4%. The results according to stage were as follows: stage I, 87.5%; Stage II, 77.9%; Stage III, 63.5%; and Stage IV A, 44.7%. The primary sites were classified as follows: upper gingiva, 85.2%; tongue, 73.7%; floor of mouth, 68.9%; lower gingiva, 66.3%; buccal mucosa, 63.9%; and hard palate, 50%. For tongue cancer, the 5-year overall survival rates by stage were: Stage I, 90.8%; Stage II, 82.1%; Stage III, 40.3%; and Stage IV A, 45.7%. Statistical significance was seen between cases of Stages I and II and those of Stages III and IV A stage. For lower gingival cancer, the 5-year overall survival rates by stage were: Stage I, 90.8%; Stage II, 82.1%; Stage III, 40.3%; and Stage IV A, 45.7%. Even in Stage I lower gingival cancers had unfavorable clinical outcomes. Preventive neck dissections were performed on 52 N 0 neck patients, but clinically negative nodes however showed metastasis in 14 patients (26.9%). (author)

91

Pathology Case Study: Sepsis  

Science.gov (United States)

This is a case study presented by the University of Pittsburgh Department of Pathology where a 74 year old man with a history of diabetes mellitus, coronary artery disease, inferior wall myocardial infarction, peripheral vascular disease, hypertension, and hypercholesterolemia. He was admitted for a left femoral-popliteal bypass graft. The case study provides both gross and microscopic descriptions along with pertinent laboratory studies in order to allow the user the opportunity to diagnose the patient. Clicking on the final diagnosis link will provide users with a discussion of the actual diagnosis along with important learning points as well as a list of references. This is an excellent resource for students in health sciences to familiarize themselves with using patient history and laboratory results to develop a diagnosis. It is also a helpful site for educators to use to introduce or test student learning in pathology and clinical microbiology.

Callahan, Debra L.

92

Flash Flood Case Studies  

Science.gov (United States)

This module takes the learner through seven case studies of flash flood events that occurred in the conterminous U.S. between 2003 and 2006. The cases covered include: * 30-31 August 2003: Chase & Lyon Counties, KS * 16-17 September 2004: Macon County, NC * 31 July 2006: Santa Catalina Mountains near Tucson, AZ * 25 December 2003: Fire burn area near San Bernardino, CA * 30 August 2004: Urban flash flood in Richmond, VA * 19-20 August 2003: Urban flash flood in Las Vegas, NV * 9 October 2005: Cheshire County, NH This module assists the learner in applying the concepts covered in the foundation topics of the Basic Hydrologic Sciences course. Some of the specific topics pertinent to these cases are the physical characteristics that make a basin prone to flash floods, basin response to precipitation, flash flood guidance (FFG), the relationship between wildfire and flash floods, and the relationship between urban development and flash floods. Related topics brought out in the cases include radar quantitative precipitation estimation (QPE), the National Weather Service Flash Flood Monitoring and Prediction (NWS FFMP) products, debris flows, impounded water, and interagency communications. The core foundation topics are recommended prerequisite materials since this module assumes some pre-existing knowledge of hydrologic principles. In particular, the Runoff Processes and Flash Flood Processes modules contain material directly related to these cases.

COMET

2007-06-26

93

Consequences from use of reminiscence - a randomised intervention study in ten Danish nursing homes  

Directory of Open Access Journals (Sweden)

Full Text Available Abstract Background Reminiscence is the systematic use of memories and recollections to strengthen self-identity and self-worth. The study aim was to investigate the consequences for nursing home residents and staff of integrating reminiscence into daily nursing care. Methods In this randomised study, ten nursing homes were matched into two groups on the basis of location, type and size. In the period August 2006 - August 2007, staff in the Intervention Group were trained and supported in the use of reminiscence, involving individual and group sessions with residents as well as reminiscence boxes, posters and exhibitions. At baseline and again 6 and 12 months after the intervention start, data were collected on residents' cognitive level, agitated behaviour, general functioning and proxy-assessed quality of life, as well as on staff well-being and job satisfaction. Mixed linear modelling was used to analyse differences in outcome between the intervention and control groups. Results Project drop-out rates were 32% for residents and 38% for nursing staff. Most staff in the Intervention Group considered reminiscence a useful tool that improved their communication with residents, and that they would recommend to other nursing homes. There were no significant differences between residents in the Intervention and the Control Group in cognitive level, agitated behaviour or general functioning. Residents in the Intervention Group showed significant higher score at 6 months in quality of life subscale 'Response to surroundings', but there was no significant difference at 12 months. Positive effects of reminiscence were observed for all staff outcome measures, the only exception being SF-12 self-rated physical health. At 6 months after start of reminiscence, staff in the Intervention Group had significantly better scores than those in the Control Group for Personal accomplishment, Emotional exhaustion, Depersonalisation, 'Attitude towards individual contact with residents' and SF-12 self-rated mental health. At 12 months after start of reminiscence, staff in the Intervention Group had significantly better scores than those in the Control Group for Emotional exhaustion and 'Professional role and development'. Conclusions The use of reminiscence appeared to have little long-term effect on the nursing home residents. Nursing staff in the Intervention Group experienced greater satisfaction with professional roles and developed a more positive view of the residents. International Standard Randomised Controlled Trial Number Register: ISRCTN90253170.

Sørensen Jan

2010-06-01

94

Corporate Governance. Case Studies  

OpenAIRE

This paper pretends to do a theoretical approach of Corporate Governance, having as support some case studies about companies like Coca-Cola, Nokia, Microsoft, and Amazon.com. The methodology adopted for this work is based in information from these companies available in their websites and annual reports. I concluded that both companies show the corporate governance components according to their core business and their environmental business.

Manuel, Eduardo

2007-01-01

95

Case study - Czechoslovakia  

International Nuclear Information System (INIS)

In the lecture Case Study - Czechoslovakia with the sub-title 'Unified System of Personnel Preparation for Nuclear Programme in Czechoslovakia' the actual status and the current experience of NPP personnel training and preparation in Czechoslovakia are introduced. The above mentioned training system is presented and demonstrated by the story of a proxy person who is going to become shift engineer in a nuclear power plant in Czechoslovakia. (orig./HP)

96

Ten-year study on varieties of parotid tumors in pediatrics  

International Nuclear Information System (INIS)

Parotid tumors are uncommon because they account for 0.5 % of all types of cancer in pediatrics. They generally occur as increased local asymptomatic volume, occasionally accompanied by pain and inflammatory signs. A retrospective, longitudinal and descriptive study was carried out to determine the frequency and forms of presentation of parotid tumors diagnosed in 0-18 years-old patients, who had been admitted to the oncological surgery service of 'William Soler' pediatric hospital from February 2001 to December 2010. The variables taken into account were sex, forms of presentation, response to treatment as well as the histological variants presented, with the objective of giving information about these variants of parotid tumors in pediatrics, which, despite their rareness, represent a high risk group when occur. Seven patients were diagnosed, of whom 3 were pleomorphic adenomas, one adenocarcinoma, one mucoepidermoid carcinoma of the gland, one parotid Hodgkin lymphoma and one mixed tumor with atypical cells of the gland. The onset of all the tumors was the presence of a parotid mass in 6 asymptomatic cases and in one case suffering local pain. They were all performed gland ultrasound and aspiration fine needle biopsy. Males prevailed over the females (ratio of 5:2) and the average age of presentation was 12.3 years. Surgery is the main therapeutic weapon in most of cases. It was recommended to closely follow the patients because of their high rate of local recurrence

97

Audit of waste collected over one week from ten dental practices. A pilot study.  

Science.gov (United States)

An audit of the waste practices of ten general dental surgeries identified problems that have occurred due to the lack of specific dental guidelines or codes of practice in this area. Occupational health and safety requirements for types and locations of sharps containers, and lack of consensus on what constitutes a sharp, were identified as areas needing attention. Cross-infection control items, such as gloves, masks, single-use cups, and protective coverings, were found to constitute up to 91 per cent of total waste. When infectious waste was reclassified by the audit team as 'that waste which was visibly blood stained,' a reduction in waste in this category was made, during the audit, at each practice. The practice of disposing of radiographic fixer and developer into the sewerage system occurred in three out of the ten practices, even though the Australian Dental Association Inc. has discouraged this practice. PMID:9153839

Farmer, G M; Stankiewicz, N; Michael, B; Wojcik, A; Lim, Y; Ivkovic, D; Rajakulendran, J

1997-04-01

98

Mercury Studies around the Mediterranean Sea Basin: Ten years of Measurements and Modeling results  

OpenAIRE

Only a few years ago the presence of Reactive Gaseous Mercury (RGM) was believed to be almost exclusively the result of anthropogenic emissions and that sustained high RGM concentrations in the MBL were not considered likely. During the past ten years, an in-depth investigation was carried out in the Marine Boundary Layer (MBL) of the Mediterranean Sea to quantify and possibly explain spatial and temporal patterns of Hg-species concentrations. This paper provides an overview of modeling resul...

Sprovieri F.; Hedgecock I. M.; Pirrone N.

2013-01-01

99

Multiple splenuculi - a case study  

International Nuclear Information System (INIS)

Full text: A 79-year-old woman with chronic lymphocytic leukaemia (CLL) and thrombocytopenia secondary to chronic idiopathic thrombocytopenia (ITP) was referred for a denatured red blood cell study. Previous treatment included Prednisone, oral Cyclophosphamide and regular Intragam infusions as well as a splenectomy in 1996. The patient presented with multiple oral haemorrhages with active bleeding and petechiae on the chest wall. Her haemoglobin was 14.1g/dl, white cell count 6.6x10E9/l, and platelets 7x10E9/l. Her red blood cells were normochromic and contained moderate numbers of Howell-Jolly bodies, this was consistent with a post-splenectomy or hyposplenism. After the administration of autologous denatured technetium labelled red blood cells, an abdominal SPECT and planar images from the lung bases to mid femurs were acquired. The imaging showed evidence of approximately six small splenuculi in the left anterolateral aspect of the abdomen. A CT abdomen was performed following to assess suitability for surgery. Ten millimeter sections from the lung bases to the pelvis with intravenous and oral contrast demonstrated no splenuculi. As a result of the negative finding on CT, the patient was not considered for surgery as it was doubtful that surgeons would be able to locate the splenuculi. In conclusion, the denatured red blood cell study showed superior sensitivity and specificity for the detection of splenuculi. By the elimination of surgery, this case demonstrated tation of surgery, this case demonstrated the importance of correlation with other modalities in providing cost effective patient management. Copyright (2000) The Australian and New Zealand Society of Nuclear Medicine Inc

100

UCLA Statistics Case Studies  

Science.gov (United States)

Created by the Department of Statistics at UCLA, this collection of case studies includes the following topics: stock prices; breast cancer research; effect of fitness program; water use in Los Angeles; oral hygiene in the ICS-II project; Brinks v. New York City; effect of exercise on heart disease; national assessment of educational progress; The London Underground; suicides of women and men; temperature in San Francisco; lead intake; voting for Johnson; salaries of Yale men; K-Mart cookie sales; skeleton differences between tribes; advertising for detergents; did Mendel fudge his data; rainfall in the United Kingdom; jury selection in Alameda County; racial bias in jury selection: Swain v. Alabama; gender bias in jury selection: the case of Dr. Spock; the ELISA test for the AIDS virus; school careers in the Netherlands in 1959; the Northridge Earthquake of January 1994 and the trial of the Pix. This large collection is great for anyone in the field of statistics.

Draper, David

101

Equity in HIV testing: evidence from a cross-sectional study in ten Southern African countries  

Directory of Open Access Journals (Sweden)

Full Text Available Abstract Background HIV testing with counseling is an integral component of most national HIV and AIDS prevention strategies in southern Africa. Equity in testing implies that people at higher risk for HIV such as women; those who do not use condoms consistently; those with multiple partners; those who have suffered gender based violence; and those who are unable to implement prevention choices (the choice-disabled are tested and can have access to treatment. Methods We conducted a household survey of 24,069 people in nationally stratified random samples of communities in Botswana, Lesotho, Malawi, Mozambique, Namibia, South Africa, Swaziland, Tanzania, Zambia, and Zimbabwe. We asked about testing for HIV in the last 12 months, intention to test, and about HIV risk behaviour, socioeconomic indicators, access to information, and attitudes related to stigma. Results Across the ten countries, seven out of every ten people said they planned to have an HIV test but the actual proportion tested in the last 12 months varied from 24% in Mozambique to 64% in Botswana. Generally, people at higher risk of HIV were not more likely to have been tested in the last year than those at lower risk, although women were more likely than men to have been tested in six of the ten countries. In Swaziland, those who experienced partner violence were more likely to test, but in Botswana those who were choice-disabled for condom use were less likely to be tested. The two most consistent factors associated with HIV testing across the countries were having heard about HIV/AIDS from a clinic or health centre, and having talked to someone about HIV and AIDS. Conclusions HIV testing programmes need to encourage people at higher risk of HIV to get tested, particularly those who do not interact regularly with the health system. Service providers need to recognise that some people are not able to implement HIV preventive actions and may not feel empowered to get themselves tested.

Mitchell Steven

2010-09-01

102

Pathology Case Study: Seizures  

Science.gov (United States)

This is a case study presented by the University of Pittsburgh Department of Pathology in which a 24-day-old baby is failing to thrive and experiencing seizures. Visitors are given the microscopic description, with images, the results of the postmortem examination, and are given the opportunity to diagnose the patient. This is an excellent resource for students in the health sciences to familiarize themselves with using patient history and laboratory results to diagnose disease. It is also a helpful site for educators to use to introduce or test student learning in pediatric pathology.

Dickman, Paul S.

103

Pathology Case Study: Peritonitis  

Science.gov (United States)

This is a case study presented by the University of Pittsburgh Department of Pathology in which a 26-year-old woman has had a 13-year history of poorly controlled insulin-dependent diabetes mellitus. Visitors are given both the patient history and laboratory results, including images, and are given the opportunity to diagnose the patient. This is an excellent resource for students in the health sciences to familiarize themselves with using patient history and laboratory results to diagnose disease. It is also a helpful site for educators to use to introduce or test student learning in pathology and clinical microbiology.

Anhalt, John P.

104

Is Electroconvulsive Therapy Fading into Oblivion? - A Study of Ten Year Trends  

OpenAIRE

Background: Despite proven efficacy, modified ECT has been variably used in the recent past, with data on the usage trend being scarce, worldwide. Aim: We aimed to do a time – series analysis to examine annual trends in modified ECT use in our tertiary teaching hospital in the last decade. Methods: A chart review was carried out on all patients who received m-ECT in our teaching hospital in the last ten years (2002 to 2011), and percentage of total inpatients receiving M-ECT each year was d...

Aruna G; Yadiyal, Muralidhara B.

2013-01-01

105

Early detection, early symptom progression and symptomatic remission after ten years in a first episode of psychosis study  

DEFF Research Database (Denmark)

Background: Poor symptom outcome remains a challenge in psychosis: At least 50% of first-episode patients continue to have positive and/or negative symptoms after ten years. Objective: To investigate rates, early predictors and early symptom progression of long-term non-remitted psychosis in an early detection study. Methods: Symptomatic remission according to new international criteria was assessed in 174 patients at ten-year follow-up. Remitted and non-remitted patients were compared on early symptom progression, and logistic regression was applied to predict non-remission. Results: At ten years, 50% of patients were in symptomatic remission. Non-remission was predicted by positive symptoms at inclusion and during the first year of treatment. Of individual symptoms only hallucinations were significantly predictive of ten-year non-remission. Early symptom differences were not reflected by differences in treatment. Conclusions: Long-term symptomatic non-remission is associated with early positive symptoms. More assertive intervention may be needed in patients who do not respond robustly in the first year of treatment, whether or not they have been detected “early”.

Simonsen, Erik; ten Velden Hegelstad, Wenche

2013-01-01

106

Ten-year experiences with Tracheostomy at a University teaching hospital in Northwestern Tanzania: A retrospective review of 214 cases  

Directory of Open Access Journals (Sweden)

Full Text Available Abstract Background Tracheostomy remains a very important life saving surgical procedure worldwide and particularly in our environment where patients present late in upper airway obstruction. Little work has been done on this subject in our environment and therefore it was necessary to conduct this study to describe our own experiences with tracheostomy, outlining the common indications and outcome of tracheostomized patients in our setting and compare our results with those from other centers in the world. Methods This was a 10-year retrospective study which was conducted at Bugando Medical Centre from January 2001 to December 2010. Data were retrieved from patients' files kept in the Medical record department and analyzed using SPSS computer software version 15.0. Ethical approval to conduct the study was obtained from relevant authority before the commencement of the study. Results A total of 214 patients were studied. The male to female ratio was 3.1: 1. The majority of patients were in the 3rd decade of life. The most common indication for tracheostomy was upper airway obstruction secondary to traumatic causes in 55.1% of patients, followed by upper airway obstruction due to neoplastic causes in 39.3% of cases. The majority of tracheostomies (80.4% were performed as an emergency. Transverse skin crease incision was employed in all the cases. Post-tracheostomy complication rate was 21.5%. Complication rate was significantly higher in emergency tracheostomy than in electives (P Conclusion Upper airway obstruction secondary to trauma and laryngeal tumors still remains the most common indication for tracheostomy in our centre and tracheostomy is still a life saving procedure in the surgical management of airway despite complications which are seen more commonly in paediatric patients. Most of tracheostomy related complications can be avoided by meticulous attention to the details of the technique and postoperative tracheostomy care by skilled and trained staff.

Gilyoma Japhet M

2011-11-01

107

Pathology Case Study: Lymphocytosis  

Science.gov (United States)

This is a case study presented by the University of Pittsburgh Department of Pathology, which describes "a 72-year-old white male who presented to an outside facility with chest pain of 24 hours duration." Visitors are given patient history, admission data, peripheral blood and bone marrow findings, including images. They are also given flow cytometry and cytogenic data as well as molecular genetics, with images, and are also given the opportunity to diagnose the patient. A "Final Diagnosis" section provides a discussion of the findings as well as references. This is an excellent resource for students in the health sciences to familiarize themselves with using patient history and laboratory results to diagnose disease. It is also a helpful site for educators to use to introduce or test student learning in hematopathology.

Contis, Lydia C.

108

Case Study: The Business End of Cases  

Science.gov (United States)

This article takes a retrospective look at how the folks in business schools look at the case method. The legacy of cases in business may seem short in the eyes of some but it is positively ancient when compared to the use of the case study in the sciences, which began to take hold in the 1990s. Surprisingly, in spite of its impeccable academic pedigree, there seems to be little literature on the success of the method; virtually no assessment data in business, law, or public policy teaching seems to exist.

Clyde Freeman Herreid

2005-11-01

109

Die invloed van wanpersepsies ten opsigte van die geskiedenis van Suid-Afrika op grondeise: Die BaPhalane ba Ramokoka grondeis as gevallestudie / The influence of misperceptions on the history of South Africa: The BaPhalane ba Ramokoka land claim as case study  

Scientific Electronic Library Online (English)

Full Text Available SciELO South Africa | Language: Afrikaner Abstract in english During the past few years, Archaetnos has been involved in various land claims, with a view to collecting historical, anthropological and archaeological information in order to determine the validity of such claims. This was done by doing deeds searches and studying archival material and anthropolog [...] ical literature, followed by a field survey where claimants indicated sites linked to their history and where they were interviewed. In some cases it was clear from the onset that misperceptions about South African history pertain. Even when information is correct, there is sometimes chronological chaos and in certain instances so-called "facts" are being fabricated. The above-mentioned information is used by the Land Claims Commission (LCC) to determine the merit of a claim. The lack of knowledge at this institution frequently results in cases being approved for the process even when such approval was clearly based on incorrect information. The land claim of the BaPhalane Ba Ramokoka community is one such example. In the article the reasons for land claims in general are listed. The merit of the BaPhalane claim, as well as the information obtained during the research process, is then discussed against this background. This is, however, not done in detail, as the article insteadfocuses on the general problem created by historical misperceptions. The findings of the research were that although the BaPhalane had a valid claim to at least four of the thirty-two farms listed, they had no valid claim to at least eighteen others. This was confirmed by the court judgement. It is concluded that the lack of knowledge at the Land Claims Commission results in many cases being unnecessarily investigated. This results in high costs, a waste of time and an unproductive system. It is therefore clear that information is required at a much earlier stage during the land claims process.

Anton C., van Vollenhoven.

2012-12-01

110

Stent-assisted coil embolization of complex wide-necked bifurcation cerebral aneurysms using the "waffle cone" technique. A review of ten consecutive cases.  

Science.gov (United States)

Endovascular treatment of complex, wide-necked bifurcation cerebral aneurysms is challenging.  Intra/extra-aneurysmal stent placement, the "waffle cone" technique, has the advantage of using a single stent to prevent coil herniation without the need to deliver the stent to the efferent vessel. The published data on the use of this technique is limited. We present our initial and follow-up experience with the waffle cone stent-assisted coiling (SAC) of aneurysms to evaluate the durability of the technique. We retrospectively identified ten consecutive patients who underwent SAC of an aneurysm using the waffle cone technique from July 2009 to March 2011. Clinical and angiographic outcomes after initial treatment and follow-up were evaluated. Raymond Class I or II occlusion of the aneurysm was achieved in all cases with the waffle cone technique. No intraoperative aneurysm rupture was noted. The parent arteries were patent at procedure completion. Clinical follow-up in nine patients (median 12.9 months) revealed no aneurysm rupture. Two patients had a transient embolic ischemic attack at 18 hours and three months after treatment, respectively. Catheter angiography or MRA at six-month follow-up demonstrated persistent occlusions of aneurysms in seven out of eight patients. Another patient had stable aneurysm occlusion at three-month follow-up study. Our experience in the small series suggests the waffle cone technique could be performed on complex, wide-necked aneurysms with relative safety, and it allowed satisfactory occlusions of the aneurysms at six months in most cases. PMID:22440597

Liu, W; Kung, D K; Policeni, B; Rossen, J D; Jabbour, P M; Hasan, D M

2012-03-01

111

Triacylglycerols in some underutilised tropical seed oils 1. Systematic studies of ten oils  

International Nuclear Information System (INIS)

Triacylglycerols composition of ten lesser known and underutilised tropical seed oils have been determined. The seed oils include Monodora tenuifolia, Monodora myristica, Colocynthis citrullus, Cyperus esculentus, Cucumeropsis edulis, Andenopus breviflorus, Telfairia occidentalis, Blighia sapida, Antiaris africana and Sesame indicum. In the Moreaceae family (M. tenuifolia, M. myristica) the dominant triacylglycerol are OPO/POO, LLO, OOL, and OOO. They accounted for over 60% of the total triacylglycerol content in the oils. In the Cyperaceae family (C. esculentus), OPP/POO, POL and OOO accounted for over 80% of the total triacylglycerol content. In the Cucurbitaceae family, SSP was the dominant triacylglycerol specie in A. breviflorus, while OPO/POO and OOO were the dominant species in C. citrullus and C. edulis. Blighia sapida recorded a different distribution of triacylglycerols composition. PLL occurred at the highest concentration, while other high molecular weight triacylglycerols were also identified in the oil. They include, SSA, OSA, LSA, OAA and LLA. Analysis of A. antiaris oil showed a different pattern in the distribution of the triacylglycerols. LaLaM, MMLa and LaLaLa accounted for about 80% of the total triacylglycerols. This result reflected the fatty acid composition of the oil. Lauric acid (C12:0) and Myristic acid (C14:0) accounted for 71.5% of the total fatty acid. The possible use of the oils as cocoa butter equivalents CBEs and cocoa butter substitutes CBSs are discussed. (author)

112

Big Sky Geophysics: Case Studies  

Science.gov (United States)

This site from the website of Big Sky Geophysics presents four case studies in geophysical exploration. Each case study examines the use of a particular exploration method: electrical, GPR, gravity, and magnetic/EM. The case studies lay out the circumstances of the exploration, the science behind the method and then displays the data that was gathered during the exploration.

Clark Jorgenson

113

FMCT verification: Case studies  

International Nuclear Information System (INIS)

Full text: How to manage the trade-off between the need for transparency and the concern about the disclosure of sensitive information would be a key issue during the negotiations of FMCT verification provision. This paper will explore the general concerns on FMCT verification; and demonstrate what verification measures might be applied to those reprocessing and enrichment plants. A primary goal of an FMCT will be to have the five declared nuclear weapon states and the three that operate unsafeguarded nuclear facilities become parties. One focus in negotiating the FMCT will be verification. Appropriate verification measures should be applied in each case. Most importantly, FMCT verification would focus, in the first instance, on these states' fissile material production facilities. After the FMCT enters into force, all these facilities should be declared. Some would continue operating to produce civil nuclear power or to produce fissile material for non- explosive military uses. The verification measures necessary for these operating facilities would be essentially IAEA safeguards, as currently being applied to non-nuclear weapon states under the NPT. However, some production facilities would be declared and shut down. Thus, one important task of the FMCT verifications will be to confirm the status of these closed facilities. As case studies, this paper will focus on the verification of those shutdown facilities. The FMCT verification system for former military facilities would have to differ in some ways from traditional IAEA safeguards. For example, there could be concerns about the potential loss of sensitive information at these facilities or at collocated facilities. Eventually, some safeguards measures such as environmental sampling might be seen as too intrusive. Thus, effective but less intrusive verification measures may be needed. Some sensitive nuclear facilities would be subject for the first time to international inspections, which could raise concerns for states that have traditionally had 'less transparency' in their military sectors. As case studies, first we investigate how to applied verification measures including remote sensing, off-site environmental sampling and on-site inspections to monitor the shutdown status of plutonium production facilities, and what measures could be taken to prevent the disclosure of sensitive information at the site. We find the most effective verification measure to monitor the status of the reprocessing plant would be on-site environmental sampling. Some countries may worry that sample analysis could disclose sensitive information about their past plutonium production activities. However, we find that sample analysis at the reprocessing site need not reveal such information. Sampling would not reveal such information as long as inspectors are not able to measure total quantities of Cs-137 and Sr-90 from HLW produced at former military plutonium production facilities. Secondly, we consider verification measures for shutdown gaseous diffusion uranium-enrichment plants (GDPs). The GDPs could be monitored effectively by satellite imagery, as one telltale operational signature of the GDP would be the water-vapor plume coming from the cooling tower, which should be easy to detect with satellite images. Furthermore, the hot roof of the enrichment building could be detectable using satellite thermal-infrared images. Finally, some on-site verification measures should be allowed, such as visual observation, surveillance and tamper-indicating seals. Finally, FMCT verification regime would have to be designed to detect undeclared fissile material production activities and facilities. These verification measures could include something like special or challenge inspections or complementary access. There would need to be provisions to prevent the abuse of such inspections, especially at sensitive and non-proscribed military and nuclear activities. In particular, to protect sensitive information, it is essential to have an appropriate managed access mechanism, which should be able to re

114

Painful bladder: Case studies  

OpenAIRE

As part of the program at the 3rd Annual Canadian Urology Forum (2013), participants engaged in interactive discussions of difficult cases throughout the event. The following is a summary of discussions pertaining to two cases illustrating the difficulties in diagnosis and management of bladder pain symptoms.

Bailly, Greg

2013-01-01

115

HI-TENS Reduces Moderate-to-Severe Pain Associated With Most Wound Care Procedures: A Pilot Study.  

Science.gov (United States)

This study systematically examined pain associated with wound care procedures (WCPs) and evaluated the effectiveness of high-intensity transcutaneous electrical nerve stimulation (HI-TENS) for reducing this pain in a two-phase design. Phase 1 (N = 57) examined patient, wound, and procedural factors, as well as analgesic intake, associated with WCPs. Pain during the WCPs was rated on a 0-10 numerical scale. Subjects reported a mean pain of 6.0 (standard deviation 3.04) during Phase 1, with 43 (75.4%) subjects experiencing moderate or severe pain (i.e., ?4). Subjects who received opioid and/or nonopioid analgesia 1 hr before or during the WCPs (36.8%) reported significantly higher pain levels than those who had not received analgesia (p = .013). In Phase 2, 23 subjects with ?4 pain during Phase 1 had HI-TENS applied to the area surrounding the wound during the WCPs. HI-TENS significantly reduced WCP pain by a mean of 2.0 (±2.31; effect size = 0.67; p = .001). This effect was significant for subjects with severe Phase 1 pain (i.e., ?8; effect size = 1.00; p = .007) but not for subjects with moderate Phase 1 pain (i.e., 4-7; effect size = 0.40; p = .053). These findings demonstrate that pain during WCPs is a significant problem, that nurses appropriately administer analgesics but these are not sufficient, and that using HI-TENS may further reduce pain, particularly in patients experiencing severe WCP pain. PMID:23956353

Gardner, Sue E; Blodgett, Nicole P; Hillis, Stephen L; Borhart, Ellen; Malloy, Lynna; Abbott, Linda; Pezzella, Pat; Jensen, Marge; Sommer, Teresa; Sluka, Kathleen A; Rakel, Barbara A

2013-08-15

116

Computational study of the structural and vibrational properties of ten and twelve vertex closo-carboranes  

Energy Technology Data Exchange (ETDEWEB)

Calculations using ab initio Hartree-Fock and Density Functional theories, the latter employing the B3LYP functional, in combination with a number of large standard basis sets ranging from 6-31G** to cc-pVDZ, have been performed on a series of ten and twelve vertex closo-carborane isomer species. Results obtained for optimized structural parameters and molecular properties are presented for 1,2-, 1,6- and 1,10-C{sub 2}B{sub 8}H{sub 10} and 1,2-, 1,7- and 1,12-C{sub 2}B{sub 10}H{sub 12} and compared, where possible, with both earlier theoretical data and experiment. Irrespective of the model chemistry chosen, the para-isomer in each class of carborane cluster is found to be the most stable species, corresponding to a structure in which the cage carbon atoms are positioned at diametrically opposed ends of the respective polyhedron. Boron-hydrogen and carbon-hydrogen bond lengths are found to change little on going from isomers of one particular cage size to another, supporting analogous conclusions previously established for small closo-carborane cages possessing five, six and seven vertices. The calculated vibrational spectra of the isomers of both decacarborane and dodecacarborane are seen to be similar to each other and reflect a high degree of rigidity within each cluster. Key polyhedral skeletal breathing modes along with characteristic boron-hydrogen and carbon-hydrogen stretching frequencies are identified in the spectra and compared with experiment. Thermochemical data relating to each species are also analyzed.

Salam, A.; Deleuze, M.S.; Francois, J.-P

2003-01-01

117

Computational study of the structural and vibrational properties of ten and twelve vertex closo-carboranes  

International Nuclear Information System (INIS)

Calculations using ab initio Hartree-Fock and Density Functional theories, the latter employing the B3LYP functional, in combination with a number of large standard basis sets ranging from 6-31G** to cc-pVDZ, have been performed on a series of ten and twelve vertex closo-carborane isomer species. Results obtained for optimized structural parameters and molecular properties are presented for 1,2-, 1,6- and 1,10-C2B8H10 and 1,2-, 1,7- and 1,12-C2B10H12 and compared, where possible, with both earlier theoretical data and experiment. Irrespective of the model chemistry chosen, the para-isomer in each class of carborane cluster is found to be the most stable species, corresponding to a structure in which the cage carbon atoms are positioned at diametrically opposed ends of the respective polyhedron. Boron-hydrogen and carbon-hydrogen bond lengths are found to change little on going from isomers of one particular cage size to another, supporting analogous conclusions previously established for small closo-carborane cages possessing five, six and seven vertices. The calculated vibrational spectra of the isomers of both decacarborane and dodecacarborane are seen to be similar to each other and reflect a high degree of rigidity within each cluster. Key polyhedral skeletal breathing modes along with characteristic boron-hydrogen and carbon-hydrogen stretching frequencies are identified in the spectra and comparedare identified in the spectra and compared with experiment. Thermochemical data relating to each species are also analyzed

118

Developing cloud business models: A case study on cloud gaming  

OpenAIRE

Cloud computing offers new ways for firms to operate in the global market so that even small firms can compete in markets traditionally dominated by multinational corporations. A case study considers how, over ten years, a small firm developed a successful business model to compete in computer gaming.

Ojala, Arto; Tyrva?inen, Pasi

2011-01-01

119

Self-Report Stability of Adolescent Cigarette Use across Ten Years of Panel Study Data  

Science.gov (United States)

This study is the first to examine adolescent cigarette report stability over 10 years. Six waves of data were utilized from the National Longitudinal Survey of Youth. This study examined internal/logical consistency and external consistency. Report stability was higher for lifetime use reports than the age of onset reports. Wave-by-wave…

Shillington, Audrey M.; Reed, Mark B.; Clapp, John D.

2010-01-01

120

Common variants at ten loci influence QT interval duration in the QTGEN Study.  

Science.gov (United States)

QT interval duration, reflecting myocardial repolarization on the electrocardiogram, is a heritable risk factor for sudden cardiac death and drug-induced arrhythmias. We conducted a meta-analysis of three genome-wide association studies in 13,685 individuals of European ancestry from the Framingham Heart Study, the Rotterdam Study and the Cardiovascular Health Study, as part of the QTGEN consortium. We observed associations at P LITAF and 17q12 near LIG3 and RFFL. Collectively, the 14 independent variants at these 10 loci explain 5.4-6.5% of the variation in QT interval. These results, together with an accompanying paper, offer insights into myocardial repolarization and suggest candidate genes that could predispose to sudden cardiac death and drug-induced arrhythmias. PMID:19305408

Newton-Cheh, Christopher; Eijgelsheim, Mark; Rice, Kenneth M; de Bakker, Paul I W; Yin, Xiaoyan; Estrada, Karol; Bis, Joshua C; Marciante, Kristin; Rivadeneira, Fernando; Noseworthy, Peter A; Sotoodehnia, Nona; Smith, Nicholas L; Rotter, Jerome I; Kors, Jan A; Witteman, Jacqueline C M; Hofman, Albert; Heckbert, Susan R; O'Donnell, Christopher J; Uitterlinden, André G; Psaty, Bruce M; Lumley, Thomas; Larson, Martin G; Stricker, Bruno H Ch

2009-04-01

121

Theory Testing Using Case Studies  

DEFF Research Database (Denmark)

The appropriateness of case studies as a tool for theory testing is still a controversial issue, and discussions about the weaknesses of such research designs have previously taken precedence over those about its strengths. The purpose of the paper is to examine and revive the approach of theory testing using case studies, including the associated research goal, analysis, and generalisability. We argue that research designs for theory testing using case studies differ from theorybuilding case study research designs because different research projects serve different purposes and follow different research paths.

MØller, Ann-Kristina LØkke; Dissing SØrensen, Pernille

2014-01-01

122

Case Studies in Economic Sanctions  

Science.gov (United States)

From the Institute for International Economics, Case Studies in Economic Sanctions presents, at present, eight in-depth case studies of the effects of economic sanctions in countries including Cuba, Libya, Pakistan, Iran, India, and Myanmar. Each case study is presented in three compact pages beginning with a detailed timeline of the history of the sanctions. The second page offers more information, including the chronological goals of the sender country, response of the target country, attitude of other countries, and legal notes. The final page contains economic statistics, assessments by economists, and concise authors's summaries. Worthy of note are the lengthy bibliographies that accompany each case study.

123

Case Study: Case Studies and the Flipped Classroom  

Science.gov (United States)

This column provides original articles on innovations in case study teaching, assessment of the method, as well as case studies with teaching notes. This month's issue discusses the positive and negative aspects of the "flipped classroom." In the flipped classroom model, what is normally done in class and what is normally done as…

Herreid, Clyde Freeman; Schiller, Nancy A.

2013-01-01

124

Reactive hyperplastic lesions of the oral cavity: A ten year observational study on North Indian Population  

OpenAIRE

Back ground: The aim of this study was to determine the frequency of focal reactive hyperplastic lesions of the oral cavity as reported in the Department of Oral Pathology and Microbiology, Subharti Dental College, Meerut and to compare these data with those of previously reported studies from other regions and countries. Material and Method: Patient records of the Department of Oral Pathology were retrieved during a 10 year period from 2001 to 2010. Data of all reactive hyperplasias namel...

Reddy, Vandana; Saxena, Susmita; Saxena, Sanjeev; Reddy, Munish

2012-01-01

125

Congenital anomalies among live births in a polluted area. A ten-year retrospective study  

Directory of Open Access Journals (Sweden)

Full Text Available Abstract Background Congenital anomalies and their primary prevention are a crucial public health issue. This work aimed to estimate the prevalence of congenital anomalies in Brindisi, a city in southeastern Italy at high risk of environmental crisis. Methods This research concerned newborns up to 28 days of age, born between 2001 and 2010 to mothers resident in Brindisi and discharged with a diagnosis of congenital anomaly. We classified cases according to the coding system adopted by the European Network for the Surveillance of Congenital Anomalies (EUROCAT. Prevalence rates of congenital anomalies in Brindisi were compared with those reported by EUROCAT. Logistic regression models were adapted to evaluate the association between congenital anomalies and municipality of residence of the mother during pregnancy. Results Out of 8,503 newborns we recorded 194 subjects with congenital anomalies (228.2/10,000 total births, 1.2 times higher than the one reported by the EUROCAT pool of registries. We observed 83 subjects with congenital heart diseases with an excess of 49.1%. Odds Ratios for congenital heart diseases significantly increased for newborns to mothers resident in Brindisi (OR 1.75 CI 95% 1.30-2.35. Conclusions Our findings indicated an increased prevalence of Congenital Anomalies (especially congenital heart diseases in the city of Brindisi. More research is needed in order to analyze the role of factors potentially involved in the causation of congenital anomalies.

Gianicolo Emilio Antonio Luca

2012-12-01

126

Perineal scar endometriosis ten years after Miles’ procedure for rectal cancer: Case report and review of the literature  

OpenAIRE

Endometriosis within a perineal scar after a Miles’ procedure has not been previously reported in literature. We report a case of a 35-year-old-female who was treated 10 years before at the same institution for a low rectal cancer that presents with two discrete subcutaneous bulges within her perineal wound. Since the patient was asymptomatic and the complete work up for recurrent disease showed no evidence of malignancy, first line therapy was conservative. After two pregnancies and a caes...

Cinardi, Nicola; Franco, Salvatore; Centonze, Danilo; Giannone, Giorgio

2011-01-01

127

Effect of TENS on pain in relation to central sensitization in patients with osteoarthritis of the knee: study protocol of a randomized controlled trial  

Directory of Open Access Journals (Sweden)

Full Text Available Abstract Background Central sensitization has recently been documented in patients with knee osteoarthritis (OAk. So far, the presence of central sensitization has not been considered as a confounding factor in studies assessing the pain inhibitory effect of tens on osteoarthritis of the knee. The purpose of this study is to explore the pain inhibitory effect of burst tens in OAk patients and to explore the prognostic value of central sensitization on the pain inhibitory effect of tens in OAk patients. Methods Patients with knee pain due to OAk will be recruited through advertisements in local media. Temporal summation, before and after a heterotopic noxious conditioning stimulation, will be measured. In addition, pain on a numeric rating score, WOMAC subscores for pain and function and global perceived effect will be assessed. Patients will be randomly allocated to one of two treatment groups (tens, sham tens. Follow-up measurements will be scheduled after a period of 6 and 12 weeks. Discussion Tens influences pain through the electrical stimulation of low-threshold A-beta cutaneous fibers. The responsiveness of central pain-signaling neurons of centrally sensitized OAk patients may be augmented to the input of these electrical stimuli. This would encompass an adverse therapy effect of tens. To increase treatment effectiveness it might be interesting to identify a subgroup of symptomatic OAk patients, i.e., non-sensitized patients, who are likely to benefit from burst tens. Trial Registration ClinicalTrials.gov: NCT01390285

Beckwée David

2012-02-01

128

Ten-Year Trend Analysis of Autism Severity: A Nationwide Population-Based Register Study  

Science.gov (United States)

The severity of autism spectrum disorder was strongly related to the education and service outcome. Without a clear profile of autistic population and its change, efforts to understand its nature and improve the quality of service or education will be impossible. The present study aims to describe the over time reported rate of autism severity…

Lin, Jin-Ding; Sung, Chang-Lin; Lin, Lan-Ping; Hsu, Shang-Wei; Chien, Wu-Chien; Su, Sui-Lung; Wu, Jia-Ling

2011-01-01

129

Ten Steps for Conceptualizing and Conducting Qualitative Research Studies in a Pragmatically Curious Manner  

Science.gov (United States)

In a world of methodological pluralism and mixed-methods, qualitative researchers can take a pathway of pragmatic curiosity by exploring their research interests and the possible design and methodology choices to create studies that not only allow them to pursue their investigative curiosities, but also result in coherent and effective systems of…

Chenail, Ronald J.

2011-01-01

130

[The NonaSantfeliu study. Baseline assessment and ten years of follow-up.  

Science.gov (United States)

NonaSantfeliu study: A review is presented of the studies that are part of the initial overall assessment and the studies performed during the 10 years of follow-up of a cohort of nonagenarians. It is a population-based study of 186 subjects, 76.5% women, mean age at baseline of 93.06 years, a quarter (26%) being institutionalized. The mean of baseline Barthel index was 60.8, and the mean for the Lobo's cognitive minimental was 21. Nonagenarian males with low comorbidity had more successful aging criteria than women with high comorbidity quantified with the Charlson Index. The survival rate at 10 years follow-up was very low, and 95.6% of the population had died. This represented an annual mortality rate of 9.5%. A common denominator on assessing all different annual cuts, is that the most important factors associated with mortality are those related to geriatric assessment, such as a function, cognition, dementia, and cumulative comorbidity and multiple medications, compared to more traditional risk factors described in younger populations. PMID:24854969

Formiga, Francesc; Ferrer, Assumpta; Lombarte, Inés; Fernández, Coral

2014-05-19

131

A study on ten short tandem repeat systems: African immigrant and Spanish population data.  

Science.gov (United States)

This work presents the results obtained from a genetic-population study for the D1S1656 system in the population of Southwest Spain (Huelva, Cádiz and Sevilla), Spaniards of Caucasian origin from North Africa (Ceuta), as well as in the black Central West African and Moroccan immigrant populations in Spain. The results of a study of the autochtonous population of the Canary Islands (n=138), and immigrant Central West African populations in Spain (n=132), obtained for nine short tandem repeat (STR) loci (D3S1358, VWA, FGA, D8S1179, D21S11, D18S51, D5S818, D13S317, D7S820), as well as the amelogenin locus, all contained in Profiler Plus (Perkin-Elmer) PCR amplification kits, are also presented. Except for the FGA and VWA data on immigrant Central West African populations in Spain, no deviations from the Hardy-Weinberg equilibrium were detected. PMID:10842028

Gamero, J J; Romero, J L; Gonzalez, J L; Arufe, M I; Cuesta, M I; Corte-Real, F; Carvalho, M; Anjos, M J; Vieira, D N; Vide, M C

2000-06-01

132

Personality Profiles Identify Depressive Symptoms over Ten Years? A Population-Based Study  

OpenAIRE

Little is known about the relationship between temperament and character inventory (TCI) profiles and depressive symptoms. Personality profiles are useful, because personality traits may have different effects on depressive symptoms when combined with different combinations of other traits. Participants were from the population-based Young Finns study with repeated measurements in 1997, 2001, and 2007 (n = 1402 to 1902). TCI was administered in 1997 and mild depressive symptoms (modified Beck...

Josefsson, Kim; Merjonen, Pa?ivi; Jokela, Markus; Pulkki-ra?back, Laura; Keltikangas-ja?rvinen, Liisa

2011-01-01

133

Meta-analysis of genome-wide association studies identifies ten loci influencing allergic sensitization.  

OpenAIRE

Allergen-specific immunoglobulin E (present in allergic sensitization) has a central role in the pathogenesis of allergic disease. We performed the first large-scale genome-wide association study (GWAS) of allergic sensitization in 5,789 affected individuals and 10,056 controls and followed up the top SNP at each of 26 loci in 6,114 affected individuals and 9,920 controls. We increased the number of susceptibility loci with genome-wide significant association with allergic sensitization from ...

Bønnelykke, K.; Matheson, Mc; Pers, Th; Granell, R.; Strachan, Dp; Alves, Ac; Linneberg, A.; Curtin, Ja; Warrington, Nm; Standl, M.; Kerkhof, M.; Jonsdottir, I.; Bukvic, Bk; Kaakinen, M.; Sleimann, P.

2013-01-01

134

River Forecasting Case Study  

Science.gov (United States)

This module takes the learner through the considerations for the river forecasting decisions associated with the remnants of Hurricane Ivan on 17-19 September, 2004 for the Susquehanna River system in Pennsylvania and New York. The module assists the learner with applying the concepts covered in the foundation topics of the Basic Hydrologic Sciences course. Some of the specific topics pertinent to this case are soil conditions, the impact of QPF on runoff, runoff models, runoff processes, routed flow and stage-discharge relationships. Observations of upstream conditions and comparisons to historic crests are also examined to assist with operational flood forecast decisions. The core foundation topics are recommended as a prerequisite since this module assumes some pre-existing knowledge of hydrologic principles.

COMET

2007-06-12

135

Estudo da estimulação elétrica nervosa transcutânea (TENS) nível sensório para efeito de analgesia em pacientes com osteoartrose de joelho / Study of transcutaneous electrical nerve stimulation (TENS) for the sensory effect of analgesia in patients with knee osteoarthritis  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: Portuguese Abstract in portuguese INTRODUÇÃO: A osteoartrose de joelho (OAJ) é uma das patologias que mais afetam o aparelho locomotor e interferem de forma considerável nas atividades da vida diária, acometendo os indivíduos em faixa etária variável e em diversos graus e níveis de dor articular. OBJETIVOS: Por causa da importância [...] da articulação do joelho nas atividades locomotoras, os pacientes com osteoartrose de joelho sofrem com a limitação de movimento e rigidez articular. O objetivo do presente estudo foi avaliar o efeito da estimulação elétrica nervosa transcutânea (TENS) nível sensório para tratamento de dor em pacientes com diagnóstico de osteoartrose de joelho, utilizando escalas de avaliação de dor. MÉTODOS: Foram estudados 10 pacientes com diagnóstico de osteoartrose de joelho, utilizando uma modalidade fisioterapêutica, a eletroterapia, especificamente a (TENS), com parâmetros de 80 Hz e 140 µs, com um total de 10 sessões, 30 minutos para cada sessão, o período total de tratamento compreendeu 4 semanas. Nesse total de 10 sessões, cada paciente foi entrevistado com um questionário na 1ª sessão, na 5ª e na 10ª sessão. Os formulários utilizados foram questionário da dor McGill - Melzack, escala Analógica visual da dor, escala numérica com expressão facial de sofrimento. RESULTADOS: O resultado com a TENS nível sensório para efeito de analgesia mostra que as diferenças foram estatisticamente significativas (p Abstract in english INTRODUCTION: Knee osteoarthritis (KOA) is one of the diseases that most affect the locomotor system and interfere significantly in activities of daily life, affecting individuals at varying ages and in different degrees and levels of joint pain. OBJECTIVES: Because of the importance of the knee joi [...] nt in locomotor activity, patients with knee osteoarthritis sufferers with limitation of movement, stiffness. The aim of this study was to evaluate the effect of transcutaneous electrical nerve stimulation (TENS) for the sensory processing of pain in patients with osteoarthritis of the knee, using rating scales of pain. METHODS: We studied 10 patients with osteoarthritis of the knee, using a modality physiotherapy, electrotherapy, specifically (TENS), with parameters of 80 Hz and 140 µs, with a total of 10 sessions, 30 minutes for each session, the period Total treatment included 4 weeks in total of 10 sessions, each patient was interviewed with a questionnaire in the first session, on the 5th and 10th session. The forms used were the McGill Pain Questionnaire - Melzack, visual analogue pain scale, numerical scale with facial expression of pain. RESULTS: The result with TENS for the effect of sensory analgesia shows that the differences were statistically significant (p

Charles Ricardo, Morgan; Franklin Santana, Santos.

2011-12-01

136

Three Community College Case Studies  

Science.gov (United States)

This article presents three case studies that focus on specific projects that are underway or have been completed. In the first case study, Joseph Wojtysiak and William J. Sutton, II discuss the Green Center of Central Pennsylvania, which is designed to serve as the state's preeminent source for education, training and public information about…

Wojtysiak, Joseph; Sutton, William J., II; Wright, Tommy; Brantley, Linda

2011-01-01

137

HEAD Academy PBL Case Studies  

Science.gov (United States)

This site contains case studies relevant to chemistry and related scientific areas, all using problem based learning methods. The case studies are in the form of downloadable pdf files that include materials to give to students as well as instructor guides.

138

Online Collaborative Case Study Learning  

Science.gov (United States)

Case study learning was integrated into a course designed to improve students' potential for academic success and increase student retention. Case studies related to self-regulation of behavior, motivation, and cognition for academic tasks were used to prompt students' critical thinking and facilitate deep learning of self-regulation topics,…

Lee, Kathryn

2007-01-01

139

A ten-year pathological study of renal tumours in port harcourt, Nigeria  

Directory of Open Access Journals (Sweden)

Full Text Available Background / Objective : To determine the relative frequency of renal tumours with respect to age, sex and clinical presentation. Method : A retrospective review of histologic reports and clinical notes. Nephrectomy and renal specimens from autopsy were routinely processed and stained with hematoxylin and Eosin (H& E stain. The completed slides were viewed under the light microscope for the diagnosis of the tumours. Results : Thirty nine specimens accounting for 0.5% of the total tumours satisfied the criteria for the study. Thirty seven tumours (94.9% were malignant while 2(5.1% were benign. The youngest was an 8 months old female while the oldest was a 65 year old female. A total of 24(61.5% tumours occurred in males while 15(38.5% in females giving a sex ratio of 1.6:1. Nephroblastoma (64.1% was the commonest malignancy and majority occurred in children while renal cell carcinoma was the most common adult renal tumour. Haematuria was the most frequent clinical presentation. Conclusion :Renal tumours are rare in this environment but they may pose a significant morbidity and mortality. Though some present with severe clinical symptoms others may go unnoticed.

Seleye-Fubara D

2006-06-01

140

Apathy in first episode psychosis patients: a ten year longitudinal follow-up study  

DEFF Research Database (Denmark)

BACKGROUND: Apathy is a common symptom in first episode psychosis (FEP), and is associated with poor functioning. Prevalence and correlates of apathy 10 years after the first psychotic episode remain unexplored. OBJECTIVE: The aims of the study were twofold: 1) to examine prevalence and predictors of apathy at 10 years, and 2) to examine the relationship between apathy at 10 years and concurrent symptoms, functioning and outcome, including subjective quality of life. METHODS: Three-hundred-and-one patients with FEP were included at baseline, 186 participated in the 10 year follow-up. Of these, 178 patients completed the Apathy Evaluation Scale (AES-S-Apathy). Patients were classified as having apathy (AES-S-Apathy?27) or not. The relationship between apathy and baseline variables (Demographics, Diagnosis, Duration of Untreated Psychosis), measures of symptomatology (Positive and Negative Syndrome Scale, Calgary Depression Scale for Schizophrenia), functioning (Global Assessment of Functioning Scale, Strauss Carpenter Level of Functioning Scale) and subjective quality of life (Lehman's Quality of Life Interview) were estimated through correlation analyses and blockwise multiple hierarchical regression analysis. RESULTS: Nearly 30% of patients met the threshold for being apathetic at follow-up. No baseline variables predicted apathy significantly at 10 years. Apathy was found to contribute independently to functioning and subjective quality of life, even when controlling for other significant correlates. CONCLUSIONS: Apathy is a common symptom in a FEP cohort 10 years after illness debut, and its presence relates to impaired functioning and poorer subjective quality of life.

Simonsen, Erik; Evensen, Julie

2012-01-01

141

Kickstarter - A Case Study  

OpenAIRE

This paper is an investigation of the online crowdfunding platform Kickstarter, and discusses what makes a Kickstarter campaign successful. Two previous Kickstarter campaigns have been debated in focus groups interviews, as the basis of the study is a reception analysis of two focus group interviews. Ee apply theories from Schrøder (2000) and Batey (2008) to our analysis to study how the campaigns appeal to their backers. By drawing on ideas from Rogers (2003) and Pine & Gilmore (1998), we f...

Willumsen, Ea Christina; Byg-fabritius, Edith Ursula Tvede

2013-01-01

142

Ten-Year Retrospective Longitudinal-Study of Student Perspectives on Value of REU  

Science.gov (United States)

For more than two decades, federal agencies have been enthusiastically supporting summer research experiences for undergraduates. These REU programs are tacitly intended to increase retention and provide "an important educational experience" for undergraduates, particularly women, minorities and underrepresented groups. Numerous authors (viz., Laursen, Lopatto, Dolan, among many others) have enthusiastically described positive impacts of summer REU programs from exit interview data. These results include enhanced persistence to pursue STEM careers and confirmed desire to attend graduate school in the field targeted by a particular REU. Perhaps surprisingly, negative student experiences are rarely described in the scholarly literature, but do appear in more informal publications (viz., Gueterma, 2007). One wonders how REU alumni, looking back over their entire collective portfolio of experiences, now perceive the educational value of their REU experience relative to their other educational experiences. To obtain a backwards-looking, reflective description from REU alumni on the value of their REU experiences, we conducted a 10-year, two-stage study was designed to explore the ways in which the REU acted as an educational experience for 51 women from a single geoscience sub-discipline. The first phase was an ex post facto longitudinal analysis of data, including multiple interviews with each participant during their REU, annual open-ended alumni surveys, faculty interviews, and extensive field notes, over a 10-year period. This analysis informed the second phase, a clinical interview. Over 10 hours of interviews with 8 participants were conducted and analyzed. These 8 participants were selected to represent a variety of career stages, and for their potential to reflect on a wide variety of educational experiences. Results from the interviews, done many years after their REU experience, indicate that the interviewees' REU did not provide a substantive educational experience related to the nature of scientific work, the scientific process, or the culture of academia when considered in a comparative context of students' other educational experiences. Results further indicated that the REU did not serve to transform participants' conceptions about themselves as situated in science, and learning gains with regard to other aspects of the self, were somewhat limited. Instead, the data suggests that these women arrived at the REU with pre-existing and remarkably strong conceptions in these areas, and that the REU did not functional to alter those states. These conceptions were frequently the result of interactions with mentors/scientists from middle school until well into the undergraduate period.

Slater, T. F.; Slater, S. J.

2013-12-01

143

Case study - Argentina  

International Nuclear Information System (INIS)

Antecedents and experience of nuclear activities in Argentina; the Atomic Energy Commission (CNEA). First development and research activities. Research reactors and radioisotopes plants. Health physics and safety regulations. - Feasibility studies for the first nuclear power plant. Awarding the first plant CNA I (Atucha I). Relevant data related to the different project stages. Plant performance. - Feasibility study for the second nuclear power plant. Awarding the second plant CNE (Central Nuclear Embalse). Relevant data related to established targets. Differences compared with the first station targets. Local participation. Plant performance. (orig./GL)

144

Innovation for Sustainable Tourism : International Case Studies  

DEFF Research Database (Denmark)

Innovation is the key to responding to the future challenges that confront all sectors of society and the economy, and especially in tourism. Within tourism, there are numerous corporations and destinations around the world that are responding to the ecological, social and economic challenges and making the transformation toward sustainability through innovation. This book assembles ten case studies of large and small enterprises and destinations in developed and developing nations that are pursuing innovative practices that will enhance the sustainability of their operations. The chapters in this volume are based on primary and secondary research by the contributing authors and each chapter has been peer reviewed prior to publication. Cross-case analysis (Patton 1990) was also used to provide a framework for comparing and contrasting the different types and contexts of innovation and provide for an integrated overview of the drivers, barriers, processes and networks for innovation. The cases have been prepared for use in research and teaching of innovation, and the analysis and case notes are both designed to facilitate discussion and further investigation of innovation, not only in tourism, but in other economic sectors as well. Being an online publication, it is expected that updates in successive editions of this first book will add further to the description and analysis of innovation for sustainable tourism and hence provide a resource for those seeking to enhance the teaching, research and practice of innovation.

Carlsen, Jack

2007-01-01

145

A case-study  

OpenAIRE

Objective: There is an increasing appreciation by clinicans and researchers that psychosocial adjustment and recovery after sustaining traumatic brain injury (TBI) is a multi-factorial process. The aim of the present study was to investigate if premorbid psychosocial functioning and cognitive status post-TBI are linked to long term psychosocial functioning. Methods: 12 patients who had sustained TBI at an average of 14.8 years prior to examination. Psychosocial adjustment both pre-TBI a...

Kelaidi, Ioanna

2007-01-01

146

Theoretical study on ten ?-S states of Si2- anion: Potential energy curves, spectroscopy and spin-orbit couplings  

Science.gov (United States)

The potential energy curves (PECs) of seventeen ? states generated from the ten ?-S states of the Si2- anion are studied in detail using an ab initio quantum chemical method for the first time. The PECs are calculated for internuclear separations from 0.10 to 1.20 nm by the complete active space self-consistent field method, which is followed by the internally contracted multireference configuration interaction approach with the Davidson modification. The spin-orbit coupling is accounted for by the Breit-Pauli Hamiltonian. Core-valence correlation and scalar relativistic corrections are considered. Core-valence correlation corrections are included using an aug-cc-pCVTZ basis set. Scalar relativistic correction calculations are made with the third-order Douglas-Kroll Hamiltonian approximation at the level of a cc-pV5Z basis set. Obvious effect of core-valence correlation corrections on the PECs is observed, in particular for the two lowest 2?u and 2?g+ ?-S states. All the PECs are extrapolated to the complete basis set limit. The lowest 2?u ?-S state is found to be the ground state of Si2- anion. The convergence observations of present calculations are made and the convergent behavior is discussed with respect to the basis set and level of theory. The effects of core-electron correlations on the energy splitting are studied by the all-electron aug-cc-pCVTZ basis set. Using these PECs, the spectroscopic parameters of ?-S and ? states involved are determined. The vibrational manifolds are evaluated for each ?-S and ? state of non-rotation Si2- anion. It shows that the spectroscopic parameters and molecular constants of ten ?-S and seventeen ? states reported here can be expected to be reliable predicted ones.

Liu, Hui; Shi, Deheng; Sun, Jinfeng; Zhu, Zunlue

2013-05-01

147

Ten Myths about Spanking Children.  

Science.gov (United States)

One of a series of studies on corporal punishment of children, this paper argues that the reasons provided for the strong support of spanking are myths. Ten myths about spanking children are discussed by offering arguments that support the action and by quoting findings from studies that refute the arguments. The ten myths are: (1) spanking works…

Straus, Murray A.

148

Endovascular treatment of false-aneurysm ten years after dacron patch aortoplasty for coarctation of the aortic isthmus. Report of a case.  

Science.gov (United States)

False aneurysm degeneration is a known complication of patch aortoplasty for coarctation of the aortic isthmus. Open surgical treatment consists of prosthetic graft repair of the involved aorta, often requires circulatory arrest to achieve a safe proximal aortic control and perform proximal anastomosis, and finally is associated with substantial perioperative morbidity. Endografting of the diseased aorta is a valuable alternative to open repair, when feasible, with good short and long term results. We now report one more case of false aneurysm ten years after Dacron patch aortoplasty for isthmic coarctation in a 26-year-old woman, successfully treated by endovascular repair via the left common iliac artery, and a complete exclusion of the aneurysm at two year follow-up. PMID:23080212

Illuminati, Giulio; Pacilè, Maria Antonietta; Palumbo, Piergaspare; Salvatori, Filippo Maria; Vietri, Francesco

2013-01-01

149

Geochemical modelling code: case studies  

International Nuclear Information System (INIS)

Some case studies of the application of geochemical modelling codes are given, including the investigation of adsorption processes for uranium by means of MINTEQA 2, and the application of EQ 3/6 in nuclear waste disposal

150

HYDROGEOLOGIC CASE STUDIES (CHICAGO, IL)  

Science.gov (United States)

Hydrogeology is the foundation of subsurface site characterization for evaluations of monitored natural attenuation (MNA). Three case studies are presented. Examples of the potentially detrimental effects of drilling additives on ground-water samples from monitoring wells are d...

151

Hydrogeologic Case Studies (Seattle, WA)  

Science.gov (United States)

Hydrogeology is the foundation of subsurface site characterization for evaluations of monitored natural attenuation (MNA). Three case studies are presented. Examples of the potentially detrimental effects of drilling additives on ground-water samples from monitoring wells are d...

152

HYDROGEOLOGIC CASE STUDIES (DENVER PRESENTATION)  

Science.gov (United States)

Hydrogeology is the foundation of subsurface site characterization for evaluations of monitored natural attenuation (MNA). Three case studies are presented. Examples of the potentially detrimental effects of drilling additives on ground-water samples from monitoring wells are d...

153

A TEN YEAR STUDY OF THE MANAGEMENT OF HAEMORRHOIDS AT A SECONDARY NURSING HOME IN SOUTH WEST NIGERIA  

OpenAIRE

This retrospective study evaluated the different treatment options used in the management of haemorrhoids in a state government owned secondary hospital, Jericho Nursing Home, Ibadan, Nigeria. The study was conducted for a period of two weeks covering June 5th – 17th 2007.The total of 120 case notes available for patients treated for haemorrhoids were used and thoroughly studied. The case notes consist of Thirty four (28.3%) males and 86 (71.7%) females who were aged between 21-40 years 57(...

Omole Moses Kayode; Adegboye Oyebukola O.

2012-01-01

154

Case Studies in Library Security  

CERN Document Server

This book employs a familiar vehicle in library literature—the case study—but in a departure from the expected, takes that time-honored genre into a new dimension. Shuman uses the conversational narrative as a vehicle for portraying 40 security and safety issues that may arise in libraries, disturbing or vexing patrons and library staff members, alike. Unlike the traditional narrative approach of other case study books, in this work, each case is presented as a soliloquy, within a fictional but plausible library situation, whereby the protagonist uses his or her own colorful mode of expression

Shuman, Bruce A

2002-01-01

155

Leukemia in women following radiotherapy for cervical cancer: ten-year follow-up of an international study  

International Nuclear Information System (INIS)

An international collaborative study, with 69 references, of 31,219 women treated for cervical cancer from 30 radiotherapy centers in nine countries was conducted. Patients were followed clinically and with blood studies between 1960 and 1970, and 148,000 woman-years (WY) were accumulated. Among 28,490 women treated with either intercavitary radium, external radiation, or both, 134,000 WY were accumulated and 13 cases of leukemia were observed. On the basis of general population rates, 15.5 cases were expected. A twofold risk could thus be excluded, but a 1.4-fold risk remained possible. In absolute terms, risks larger than 0.1 leukemia cases per 106 WY-rad could be excluded. Among 2,729 cervical cancer patients not irradiated but similarly evaluated, 14,000 WY were accumulated and 2 cases of leukemia were observed as compared with 1.0 expected. In the interval 4-8 years after exposure, the period in which any leukemogenic effect might be most apparent, 7 cases of leukemia were observed among exposed patients as compared with 5.4 expected. The absence of an increased leukemia risk suggested that the radiation regimens used to treat cervical cancer are not so effective in inducing leukemia as are other radiation exposures that have been studied

156

The Classic: Total Condylar Knee Replacement in Patients Who Have Rheumatoid Arthritis. A Ten-Year Follow-Up Study  

OpenAIRE

Eighty knee replacements with a total condylar prosthesis in patients who had rheumatoid arthritis were followed for ten years. At ten years, nineteen knees needed revision and sixty-one prostheses were still functioning. The major reasons for revision were loosening of the tibial component or late bacteremic seeding from another site. Radiolucency at the bone-cement interface adjacent to the tibial component was statistically related to malposition of the tibial component. According to the s...

Laskin, Richard S.

2008-01-01

157

Case Study: Sex and Vaccination  

Science.gov (United States)

This case study is centered upon the recent debate concerning the decision by Texas Governor Rick Perry to mandate the compulsory vaccination of girls in the Texas public school system against the human papillomavirus (HPV) prior to entering the sixth grade. The interrupted case method is particularly appropriate for this subject with the case sections providing a general overview of the disease, the reasons for such a mandatory vaccination program, the reasons against such a program, and finally a disclosure of what ultimately transpired in Texas.

Clyde Freeman Herreid

2008-05-01

158

Studies on some rare earth metal complexes: ten- and six-coordinated complexes of an unsymmetrical aminoacid derivative  

International Nuclear Information System (INIS)

2,4-dihydroxybenzaldehyde (N-benzoyl)glycyl hydrazone, H3 dhbbgh, has been synthesized and characterized. Rare earth metal complexes of the empirical formulae, [Ln(H3 dhbbgh)2Cl2]Cl.nH2O and [Ln(dhbbgh)(H2O)2], where Ln = La(III), Pr(III), Nd(III), Sm(III), Eu(III), Gd(III), Tb(III), Dy(III) and Y(III) have been synthesized and characterized by elemental analyses, molar conductances, magnetic susceptibilities, electronic, infrared and NMR spectral studies. Various bonding parameters (?,b1/2,% ? and ?) calculated from the electronic spectra of Pr(III), Nd(III), Sm(III) and Dy(III) complexes suggest a weak covalent bond between the metal and ligand. The theoretical oscillator strengths (Pcalcd) and a set of three intensity parameters (T?=2,4,6) computed from the Judd-Ofelt equation are found to be in good agreement with experimental values. On the basis of the spectral profiles of the hypersensitive transitions (4I9/2 --> 4G5/2, 2G7/2) in the Nd(III) complexes, coordination numbers ten and six have been proposed for the Ln(III) ions in the adduct and deprotonated complexes respectively. (author). 37 refs., 1 fig., 2 tabs

159

Case Studies in Climate Change  

Science.gov (United States)

This module is intended to be taught in an AP environmental science introductory unit and consists of 5 case studies. APES students choose one case based on their interest and work in a group to complete. Each case study includes an introduction with a news article or op-ed piece to start students thinking about their own opinions on the issue. Students then have time to research and build their background knowledge. Labs or activities are included to introduce students to methods used by scientists to study issues such as dendrochronology or ice core analysis. Students then analyze a real world set of data and create a presentation to present their findings to their class. Presentations include conclusions and recommendations for action to help solve the issue.

2012-01-01

160

Case Study on Logistics Performance  

Directory of Open Access Journals (Sweden)

Full Text Available The paper presents research carried out at a medium?size manufacturing organization in east Asia. The study tries to highlight the importance of supply chain management; specifically, our aim for this study is to understand logistics and performance measurement in the logistics and supply chain, and we include a theoretical discussion of online data collected and a case study of the logistic performance of a real organization. The study also examines the performance of the selected company, identifies the problems and provides recommendations for improvements. This study can be a guide for business advisers and those interested in analysing company performance, especially from a logistics viewpoint. We also suggest the methodology of this case study for those who want to have a better understanding of a business environment before starting their own business, or for benchmarking practice during strategic planning.

Shahryar Sorooshian

2013-05-01

161

Ten Common NWP Misconceptions  

Science.gov (United States)

This module introduces forecasters to ten of the most commonly encountered or significant misconceptions about NWP models. This list of ten misconceptions includes issues surrounding data assimilation, model resolution, physical parameterizations, and post-processing of model forecast output.

COMET

2002-05-02

162

eCompetence Case Studies  

DEFF Research Database (Denmark)

In this paper we present some details of the processes undertaken in the European eCompetence Initiative. We present two illustrative and representative case studies. The research aims to identify and understand patterns of individual and organisational eCompetence approaches.

Jensen, Helle Bækkelund

2006-01-01

163

Case study; Etude de cas  

Energy Technology Data Exchange (ETDEWEB)

The climatic change, by the earth warming, will lead to terrible consequences in the little islands and the coastal regions. Facing these environmental impacts, the governments have to decide measures. For developing countries a financial assistance is necessary from developed countries. This paper presents three case studies: the Bangladesh, the Maldives and the Camargue in France. (A.L.B.)

Huq, S. [International Institute for Environment and Development, London (United Kingdom); Saeed, S. [Ministere de l' Interieur, du Logement et de l' Environnement, Male (Maldives); Mongruel, S.; Provansal, M. [Universite de Provence, Aix Marseille 1, 13 (France); Picon, B. [Centre National de la Recherche Scientifique (CNRS), Lab. Dynamique Ecologique et Sociale en Milieu Deltaique, 13 - Marseille (France); Dlugolecki, A. [CGNU, Dir. de General Insurance Development, London (United Kingdom)

2001-07-01

164

The Case Study of Frank  

Science.gov (United States)

As a unifying feature of this Special Issue, we have asked proponents of each framework to analyse an empirical classroom account of one student's process of solving a mathematical problem. Here, for the case study of "Frank", we give the main data that were available to all authors.

Eynde, Peter Op't; Hannula, Markku S.

2006-01-01

165

Eco Audit Bottle Case Study  

Science.gov (United States)

10 minute excerpt from a web seminar with Mike Ashby (February 2011) describes a case study that can be used to introduce sustainability concepts to introductory level students. Based on Powerpoint lecture unit 12 which can also be found on the Granta Design site at http://teaching.grantadesign.com/open/eco.htm or on MatDL at http://matdl.org/repository/view/matdl:1058.

Ashby, Mike

2011-02-01

166

Continuing education case study quiz.  

Science.gov (United States)

Goal- The goal of this program is to educate pharmacists about the use of teriflunomide for the treatment of multiple sclerosis (MS). Objectives- At the completion of this program, the reader will be able to:Describe the pharmacology and pharmacokinetics of teriflunomide.Discuss the risks associated with the use of teriflunomide.Discuss the potential benefit of teriflunomide for an individual patient.Apply the information on the use of teriflunomide to a case study. PMID:24421468

2013-03-01

167

CAREM X INPRO case study  

International Nuclear Information System (INIS)

In order to assess and compare the performance of innovative nuclear energy systems INPRO has defined a set of basic principles, user requirements and criteria to be met in different areas (economics, sustainability and environment, safety, waste management and proliferation). This paper illustrates the use of INPRO methodology to a particular reactor system. Argentina is performing CAREM X Nuclear System Case Study based on CAREM nuclear reactor and Once Through Fuel Cycle, using SIGMA for enriched uranium production, and a deep geological repository for final disposal of high level waste after surface intermediate storage in horizontal natural convection silos, to verify INPRO (International Project on Innovative Nuclear Reactors and Fuel Cycles) methodology. 6 aspects have been considered: 1) enrichment based on Sigma enrichment plant (gas diffusion technology), 2) conversion to UO2, 3) fuel manufacturing, 4) CAREM-300 based reactor technology, 5) intermediate spent fuel storage, and 6) deep geological repository of spent fuels. Projections show that developing countries could play a crucial role in the deployment of nuclear energy, in the next fifty years. This case study will be highly useful for checking INPRO methodology for this scenario. In this paper, the preliminary findings of the Case Study are presented, including proposals to improve the INPRO methodology

168

CAREM X INPRO case study  

Energy Technology Data Exchange (ETDEWEB)

In order to assess and compare the performance of innovative nuclear energy systems INPRO has defined a set of basic principles, user requirements and criteria to be met in different areas (economics, sustainability and environment, safety, waste management and proliferation). This paper illustrates the use of INPRO methodology to a particular reactor system. Argentina is performing CAREM X Nuclear System Case Study based on CAREM nuclear reactor and Once Through Fuel Cycle, using SIGMA for enriched uranium production, and a deep geological repository for final disposal of high level waste after surface intermediate storage in horizontal natural convection silos, to verify INPRO (International Project on Innovative Nuclear Reactors and Fuel Cycles) methodology. 6 aspects have been considered: 1) enrichment based on Sigma enrichment plant (gas diffusion technology), 2) conversion to UO{sub 2}, 3) fuel manufacturing, 4) CAREM-300 based reactor technology, 5) intermediate spent fuel storage, and 6) deep geological repository of spent fuels. Projections show that developing countries could play a crucial role in the deployment of nuclear energy, in the next fifty years. This case study will be highly useful for checking INPRO methodology for this scenario. In this paper, the preliminary findings of the Case Study are presented, including proposals to improve the INPRO methodology.

Florido, P.C.; Brasnarof, D.; Delmastro, D. [Centro Atomico Bariloche, Bariloche (Argentina); Azpitarte, O.E. [International Atomic Energy Agency, Vienna (Austria)

2004-07-01

169

Pathology Case Study: Cushing's Syndrome  

Science.gov (United States)

The Department of Pathology at the University of Pittsburgh Medical Center has compiled a wide range of pathology case studies to aid students and instructors in the medical/health science field. This particular case involves a 41 year-old woman experiencing the following symptoms for a period of 18 months: fatigue, weakness, lethargy, and decreased concentration. The patientâ??s history, description of CT scans, and images from histological examinations, which contributed to the conclusive diagnosis, are all provided here for your review. The contributing doctors provide a detailed discussion of the patientâ??s condition in the â??Final Diagnosisâ? section. Students will find this resource especially helpful, as it provides experience with patient history, lab results, and diagnostics.

Dacic, Sanja

170

A case study of Impetigo  

Directory of Open Access Journals (Sweden)

Full Text Available This is a report of a case study on 234 patients with impetigo who referred to Razi Dermatology Hospital from April to November, 1989. Treatment was started immediately after obtaining direct smear and performing culture and antibiotic sensitivity test. The most common organism responsible for impetigo was the coagulase-positive staphylococcus (71%. In 13.7% of the cases, the coagulase-negative staphylococcus was grown on culture media, but none of the cultures showed streptococcus as the main organism. Treatment was started with oral penicillin V, oral erythromycin, benzathine penicillin G injection, oral cephalexin, and topical fuccidin. Clinical and bacteriological evaluation after 3-7 days showed that it is preferable to use oral cephalexin instead of other protocols such as oral erythromycin, which has previously been the drug of choice for impetigo. In addition, topical fuccidin with a 75% curative rate was the first drug for treatment, with the same effect as the oral cephalexin

Mansouri P

1993-05-01

171

[Juvenile dermatomyositis: 4 case studies].  

Science.gov (United States)

Juvenile dermatomyositis is a rare disease. The estimated incidence is 2 to 3 cases per million population. Before the use of corticosteroids, prognosis was poor for most patients. Today, despite a better prognosis, the side effects of long-term treatment still burden the outcome of the disease. The diagnosis of this entity is difficult and often delayed due to its rarity. It has been shown that the delay in diagnosis and care is a major factor for poor prognosis. Cutaneous findings are often inaugural, allowing early diagnosis. This study's aim was to share our 10-year experience with juvenile dermatomyositis. PMID:18676126

Marcil, T; Khoudri, I; Meziane, M; Beqqal, K; Khatibi, I; Hassam, B; Afifi, Y; Benzekri, L

2008-09-01

172

Pathology Case Study: Macrocytic Anemia  

Science.gov (United States)

This is a case study presented by the University of Pittsburgh Department of Pathology in which an older man suffering from chronic bronchitis and macrocytic anemia also developed persistent flu symptoms. Visitors view the microscopic and gross descriptions, including images, and have the opportunity to diagnose the patient. This is an excellent resource for students in the health sciences to familiarize themselves with using patient history and laboratory results to diagnose disease. It is also a helpful site for educators to use to introduce or test student learning in hematopathology.

Bahler, David

173

Pathology Case Study: Chronic Sinusitis  

Science.gov (United States)

This is a case study presented by the University of Pittsburgh Department of Pathology in which a man reported a history of chronic sinusitis that was not responding to nasal and antibiotic treatments. Visitors can view both microscopic and gross descriptions, including images, and have the opportunity to diagnose the patient. This is an excellent resource for students in the health sciences to familiarize themselves with using patient history and laboratory results to diagnose disease. It is also a helpful site for educators to introduce or test students of head and neck pathology.

Becich, Michael J.

174

Pathology Case Study: Metastasizing Tumor  

Science.gov (United States)

This is a case study presented by the University of Pittsburgh Department of Pathology in which a woman presented with a low-grade sarcoma with features of plexiform fibrohistiocytic tumor in the subcutaneous soft tissue of left posterior thigh. Visitors can view both gross and microscopic descriptions, including images, and have the opportunity to diagnose the patient. This is an excellent resource for students in the health sciences to familiarize themselves with using patient history and laboratory results to diagnose disease. It is also a helpful site for educators to introduce or test students of soft tissue pathology.

Rao, Uma N. M.

175

Pathology Case Study: Lung Mass  

Science.gov (United States)

The Department of Pathology at the University of Pittsburgh Medical Center has compiled a wide range of pathology case studies to aid students and instructors in learning. A 59-year-old patient with a history of smoking was admitted for a biopsy of his recently transplanted liver. Laboratory results, X-ray images, microscopic descriptions and images are provided to aid in the understanding of the final diagnosis. The doctor's official conclusions and references are included in the "Final Diagnosis" section. Students entering health sciences fields will find this resource very helpful, as it provides experience with patient history, lab results and diagnostics.

Bastacky, Sheldon

176

Appending epidemiological studies to conventional case-control studies (hybride case-control studies).  

Science.gov (United States)

This paper summarizes several studies that can be appended to conventional case-control studies especially in the context of case-control studies that focus on etiologic questions. Appending studies to case-control studies may further add to the understanding of the epidemiology of diseases under investigation. We explain their uses, implications and limitations. One can append the following studies to a case-control study: (1) case-only study, (2) case crossover study, (3) case cross-sectional study, (4) control cross-sectional study, (5) case follow-up study, and (6) control follow-up study. The choice of the additional studies that are appended to the conventional case-control study has implications for the set of data and biological material that has to be collected, the ethical review board and the informed consent. Due to several limitations, the attachment of additional studies to a case-control study should be carefully considered and limited to only few additional studies in order to avoid overburden of the study participants and study personnel. PMID:15330124

Stang, Andreas; Jöckel, Karl-Heinz

2004-01-01

177

Haemophilus somnus Infections I. A Ten Year (1969-1978) Retrospective Study of Losses in Cattle Herds in Western Canada  

OpenAIRE

A total of 838 outbreaks of fatal Haemophilus somnus infections in herds of cattle were diagnosed at provincial veterinary laboratories in Manitoba, Saskatchewan, Alberta and British Columbia during the period 1969-1978. The index cases from these outbreaks included 759 cases of thromboembolic meningoencephalitis, 78 cases of fibrinous pneumonia with pleuritis and one case of H. somnus abortion. The epizootics were subdivided on the basis of province, class and age of cattle and seasonal occu...

Saunders, J. R.; Thiessen, W. A.; Janzen, E. D.

1980-01-01

178

Case Study: Wake-up Call  

Science.gov (United States)

This is a case study for undergraduate students in anatomy and/or physiology. In particular this case study explores the cardiovascular system . Users of the National Center for Case Study Teaching in Science will be required to register (free) to gain access to the answer key (and must be of teaching status to receive the key). Included in the resource are the case overview, objectives, case study, teaching notes and answer key.

Lisa Marie Rubin (VA Western New York Health System Formulary Management)

2002-09-16

179

Case Study: Wearing on Her Nerves  

Science.gov (United States)

This is a case study for undergraduate students in anatomy and/or physiology. In particular this case study explores the nervous and muscular system . Users of the National Center for Case Study Teaching in Science will be required to register (free) to gain access to the answer key (and must be of teaching status to receive the key). Included in the resource are the case overview, objectives, case study, teaching notes and answer key.

Kathleen Brown (CUNY Queensborough Community College Nursing/Massage Therapy)

2011-05-23

180

Experimental study of a fast plasma focus discharge operated in the range of tens of joules emitting neutrons  

International Nuclear Information System (INIS)

In this doctoral research, a small plasma focus discharge operated at tens of joules and kilo amperes has been experimentally studied. This device produces a coaxial discharge by an electrode arrange which consists of an inner electrode, a cylindrical insulator, and an outer electrode. The discharge is driven by a capacitive generator and it is operated at pressures of some millibars. Typical electrical parameters of the device are T/4?150ns, 160 nF, 40 nH, 30-100J, 40-70kA. When Deuterium is used as filling gas, neutrons are produced by fusion reactions. The device, namely PF-50J, is one of the most extreme plasma focus reported in the literature to emit neutrons. The results of this work have demonstrated that the same dynamics found in larger machines (operated from kJ to MJ) is also found in this extremely low energy device which means that after the discharge is initiated, a plasma sheet is formed over the insulator. By the action of the Lorentz force, the plasma sheet moves axially. When the sheet reaches the top end of the inner electrode, it starts to implode radially to finally form a dense plasma column (pinch). Finally, the plasma column is disrupted 5-10ns after column formation. Shock piston velocities of the order of 104-105m/s were estimated from experiments for each discharge dynamical phase. Typical pinch densities of 1024-25m-3 were also observed in PF-50J. An interesting feature observed in this work is esting feature observed in this work is the formation of axial jet-like structures which appears at late times almost hundred nanoseconds after pinch disruption. These structures are composed by a metallic plasma which results from ablation of the inner electrode. The mechanism responsible for the formation of this kind of structure is still unknown, although evidence suggests that the phenomena is not related to the pinch formation process. One of the principal motivations of this thesis was to study the optimization for neutron emission in the PF-50J device. This plasma focus is expected to yield 103-104 neutrons per pulse when is operated with deuterium. Standard detection techniques, for example neutron activation detectors, present detection limits higher than 105 neutrons per pulse, so it was necessary to develop a measurement method for higher efficiency detectors based on the use moderated proportional counter tubes for the purpose of neutron optimization. In contrast to low rate continuous regime, this detectors show pulse piling up when irradiated with pulsed neutrons, which make impossible to count events with standard nuclear electronics. In this thesis, it is presented a detailed study of pulsed piling up statistics in the proportional counter and a complete characterization of the 3He tubes based detection system. Regarding that the net area of detector output signal is proportional to the number of detected events, a counting model was developed and thus a methodology for measurement of the neutron yield is proposed. Special emphasis was put on the sources of fluctuation that affects the measurement process, which are given by the counting statistics, piling up statistics, and background electrical noise. As a result, the methodology allows measurements uncertainties for pulsed D-D fusion neutrons lower than 30% in the range of Y ? 3x103n/shot, reducing in this way by almost two order of magnitude the detection limit of the state of art techniques. A theoretical study of the detection frequency or reproducibility for pulsed neutron sources is also presented. Comparisons with results in PF-50J show that theoretical models for reproducibility are reasonable high boundary estimations for the experimental values. The optimization study is presented in the last part of this work. Optimal conditions for neutron emission were experimentally obtained. An interesting finding is the observation of two regimes for pinch formation and neutron emission. The first regime is related to the pinch formation close to the first current maximum in the first quarter of period, while in the second one thes

181

L’utilisation du TENS en physiothérapie : la situation particulière des soins palliatifs oncologiques  

OpenAIRE

Trans-cutaneous electrical nerve stimulation (TENS) is a treatment against pain that uses the application of an electric current. Some studies suggest that TENS would reduce the pain associated with certain types of cancer and this treatment is regularly used in therapy in contexts of interdisciplinary practice specializing in palliative oncology. However, the use of TENS in cancer cases is a matter of controversy, and its application is contraindicated by Canadian standards governing the pra...

Laliberte?, Maude; Dyer, Joseph-omer

2012-01-01

182

Networks for Innovation for Sustainable Tourism : Case Studies and Cross-Case Analysis  

DEFF Research Database (Denmark)

Innovation is key to responding to the future challenges that confront all sectors of society and the economy. Within tourism, there are numerous corporations and destinations around the world that are responding to the challenges posed by ecological, social, cultural and economic forces and making the transformation toward sustainability through innovation. Networks for Innovation in Sustainable Tourism assembles ten case studies of large and small enterprises and destinations in developed and developing nations that are pursuing innovative practices that will enhance the sustainability of their operations. The cases have been prepared for use in research and teaching of innovation, and the analysis and case notes are designed to facilitate discussion and further investigation of innovation, not only in tourism, but in other economic sectors as well.

Liburd, Janne J.; Carlsen, Jack

2013-01-01

183

Probabilistic consequence study of residual radiological effects from a hypothetical ten-ton inadvertent nuclear yield. Weapons Safety Program  

International Nuclear Information System (INIS)

In this paper we study the potential radiological consequences of a strategic bomber accident, in which one of the assumed on-board nuclear weapons explodes with an arbitrarily chosen 10-ton nuclear yield. The frequency of such an occurrence is infinitesimal. The safety design features in today s nuclear weapons' systems essentially forbid its occurrence. We have a chosen a military base which has the feature of being a representative combination of urban and rural populations. The assumed ''crash site'' is near the northwest comer of the military base, close to civilian housing located just across the street from the base. A worst case wind would be from the ESE (east south east). This would cause fission debris to be dispersed toward the largest population centers and, thus, would lead to the largest Pu ''collective'' doses (i.e., a dose integrated over time and summed over individuals). Also, if an ESE wind were blowing at accident time, some people in nearby housing could receive lethal gamma-ray doses from fallout before evacuation could occur. It is assumed only one weapon undergoes nuclear yield; the other on-board weapons would HE detonate and the Pu would be aerosolized and lofted. We assume an activity-size distribution and lofting similar to those used to predict fallout measured at NTS. The main thrust of our study is to provide estimates of probabilistic radiological risks to the population local to a strategic bomber crash site. The studied radiological consequences are: cloud-passage doses from Pu inhalation; doses from groundshine due to gamma-producing radionuclides; and areal contamination from Pu and the long-lived fission products Cs-137 and Sr-90

184

Endometriosis-associated ovarian cancer: A ten-year cohort study of women living in the Estrie Region of Quebec, Canada  

Directory of Open Access Journals (Sweden)

Full Text Available Abstract Objectives Endometriosis has been believed to increase the risk of developing ovarian cancer, but recent data supporting this hypothesis are lacking. The aim of this study was to verify whether the incidence of endometriosis, ovarian cancer and the both increased during the last 10 years among women living in the Estrie region of Quebec. Methods We collected data of women diagnosed with endometriosis, ovarian cancer or both, between 1997 and 2006, from a population living in the Estrie region of Quebec. We performed this retrospective cross-sectional study from the CIRESSS (Centre Informatisé de Recherche Évaluative en Services et Soins de Santé system, the database of the CHUS (Centre Hospitalier Universitaire of Sherbrooke, Sherbrooke, Canada. Results Among the 2854 identified patients, 2521 had endometriosis, 292 patients had ovarian cancer and 41 patients had both ovarian cancer and endometriosis. We showed a constant increase in the number of ovarian cancer (OC between 1997 and 2006 (r2 = 0.557, P = 0.013, which is not the case for endometriosis (ENDO or endometriosis-associated ovarian cancer (EAOC. The mean age ± SD was 40.0 ± 9.9 and 53.9 ± 11.4 for patients having ENDO and OC, respectively. Mean age of women with EAOC was 48.3 ± 10.8, suggesting an early onset of ovarian cancer in women having endometriosis of about 5.5 years average, P = 0.003. Women with ENDO were at increased risk for developing OC (Rate Ratio [RR] = 1.6; 95% Confidence Interval [CI] = 1.12-2.09. Pathological analyses showed the predominance of endometrioid type (24.4% and clear-cell type (21.9% types in EAOC compared to OC, P = 0.0070 and 0.0029, respectively. However, the serous type is the most widespread in OC (44.5% in comparison to EAOC (19.51%, P = 0.0023. Conclusion Our findings highlight that the number of cases of ovarian cancer is constantly increasing in the last ten years and that endometriosis represents a serious risk factor which accelerates its apparition by about 5.5 years.

Aris Aziz

2010-01-01

185

Pathology Case Study: Bilateral Pneumonia  

Science.gov (United States)

This is a case study presented by the University of Pittsburgh Department of Pathology which describes a 75 year old woman "with a past medical history of significant for a 6 month history of cryoglobulinemia with vasculitis, congestive heart failure, hypertension, cryptogenic cirrhosis, peripheral vascular disease, chronic renal insufficiency, anemia, degenerative joint disease, and diverticulitis." Visitors are provided with patient history, admission data, and microscopic findings (lung), including images, and are given the opportunity to diagnose the patient. A "Final Diagnosis" section provides a discussion of the findings as well as references. This is an excellent resource for students in the health sciences to familiarize themselves with using patient history and laboratory results to diagnose disease. It is also a helpful site for educators to use to introduce or test student learning in clinical microbiology.

Davie, James

186

Pathology Case Study: Dog Bites  

Science.gov (United States)

This is a case study presented by the University of Pittsburgh Department of Pathology, which describes a 56-year-old male with a past medical history significant for lymphoma (in remission). The patient is a health care worker who presented to the emergency room because of a dog bite. Visitors are given a patient history and culture findings, including images. They are also given an opportunity to diagnose the patient before clicking on the "Final Diagnosis" section, which provides a discussion of the findings as well as references. This is an excellent resource for students in the health sciences to familiarize themselves with using patient history and laboratory results to diagnose disease. It is also a helpful site for educators to use to introduce or test student learning in clinical microbiology.

Driscoll, Eileen

187

Pragmatic Case Studies in Psychotherapy  

Science.gov (United States)

Started in 2005, the peer-reviewed, open-access journal Pragmatic Case Studies in Psychotherapy (PCSP) provides "innovative, quantitative and qualitative knowledge about psychotherapy process and outcome, for both researchers and practitioners." The publication is sponsored by the Rutgers University Graduate School of Applied and Professional Psychology, and first-time visitors can get a feel for their work by looking over the table of contents of the current issue on the right-hand side of their homepage. Visitors should also feel free to browse through the archives, register to receive the latest edition of PCSP via email, and also learn about their submission policies. Additionally, visitors can also sign up for their RSS feed and create their own collection of PCSP articles.

188

Pathology Case Study: Epileptic Seizures  

Science.gov (United States)

This is a case study presented by the University of Pittsburgh Department of Pathology which presents a 43 year old man with a "seizure" of dizziness associated with difficulty in walking and performing simple movements. Visitors are provided with patient history along with neuroimaging and microscopic description, including images, and are given the opportunity to diagnose the patient. A "Final Diagnosis" section provides a discussion of the findings as well as references. This is an excellent resource for students in the health sciences to familiarize themselves with using patient history and laboratory results to diagnose disease. It is also a helpful site for educators to use to introduce or test student learning in neuropathology.

189

Pathology Case Study: Abdominal Distention  

Science.gov (United States)

This is a case study presented by the University of Pittsburgh Department of Pathology, which describes a 60-year-old woman who presented with a history of marked abdominal distention lasted for several months with associated progressive fatigue, progressive weight loss and fever. Visitors are given patient history along with gross and microscopic descriptions, including images, and are given the opportunity to diagnose the patient. A "Final Diagnosis" section provides a discussion of the findings as well as references. This is an excellent resource for students in the health sciences to familiarize themselves with using patient history and laboratory results to diagnose disease. It is also a helpful site for educators to use to introduce or test student learning in soft tissue pathology.

Rao, Uma N. M.

190

Tumores malignos en nuestro medio: Estudio de 10 años Malignant neoplasms in our environment: A ten-year study  

Directory of Open Access Journals (Sweden)

Full Text Available Se estudian 616 pacientes con tumores malignos del aparato genital femenino, las que fueron intervenidas quirúrgicamente en el hospital ginecoobstétrico docente de Guanabacoa en el decenio 1984-1994. Como resultado de este trabajo se observó que el 2,9 % del total de biopsias correspondía a neoplasias malignas, y fue el carcinoma del cuello uterino el tumor más frecuente (423 casos para el 68,6 % del total de neoplasias. Los tumores de la mama y el endometrio ocuparon el 2do. y 3er. lugares en frecuencia, cuyas variedades histológicas se corresponden con lo reportado en la literatura. Se evidencia la importancia de redoblar la vigilancia e incrementar la labor y eficacia en la detección precoz del cáncer cervicouterino y de la glándula mamaria.616 patients with female genital malignant neoplasms, who had been operated on at the Teaching Gynecological and Obstetric Hospital in Guanabacoa from 1984-1994, were studied. As a result, it was observed that 2.9 % of biopsies corresponded to malignant neoplasms and the most frequent was the cervix-uteri carcinoma (423 cases accounting for 68,6 % of total number. Breast and endometriun neoplasms are the second and third causes. Whose histological varieties are similar to those reported in literature. The importance of strenghtening surveillance and increasing the effectiveness in the early detection of cervix uterine cancer and of breast cancer are evidenced.

Nancy Vasallo Pastor

1999-12-01

191

Tumores malignos en nuestro medio: Estudio de 10 años / Malignant neoplasms in our environment: A ten-year study  

Scientific Electronic Library Online (English)

Full Text Available SciELO Cuba | Language: Spanish Abstract in spanish Se estudian 616 pacientes con tumores malignos del aparato genital femenino, las que fueron intervenidas quirúrgicamente en el hospital ginecoobstétrico docente de Guanabacoa en el decenio 1984-1994. Como resultado de este trabajo se observó que el 2,9 % del total de biopsias correspondía a neoplasi [...] as malignas, y fue el carcinoma del cuello uterino el tumor más frecuente (423 casos para el 68,6 % del total de neoplasias). Los tumores de la mama y el endometrio ocuparon el 2do. y 3er. lugares en frecuencia, cuyas variedades histológicas se corresponden con lo reportado en la literatura. Se evidencia la importancia de redoblar la vigilancia e incrementar la labor y eficacia en la detección precoz del cáncer cervicouterino y de la glándula mamaria. Abstract in english 616 patients with female genital malignant neoplasms, who had been operated on at the Teaching Gynecological and Obstetric Hospital in Guanabacoa from 1984-1994, were studied. As a result, it was observed that 2.9 % of biopsies corresponded to malignant neoplasms and the most frequent was the cervix [...] -uteri carcinoma (423 cases accounting for 68,6 % of total number). Breast and endometriun neoplasms are the second and third causes. Whose histological varieties are similar to those reported in literature. The importance of strenghtening surveillance and increasing the effectiveness in the early detection of cervix uterine cancer and of breast cancer are evidenced.

Nancy, Vasallo Pastor; Adis L., Peña Cedeño; Alfredo, Rodríguez Pérez.

1999-12-01

192

5. A ten year study of the treatment of malaria in pregnancy at a secondary hospital in south west Nigeria  

Directory of Open Access Journals (Sweden)

Full Text Available Malaria in pregnancy has remained a major public health problem in Nigeria. The treatment of malaria in pregnancy at the Lady of Apostles Catholic Hospital, Oluyoro, Oke-Ofa, Ibadan in South West Nigeria between 1999 and 2008 was studied retrospectively. The objective of the study was to assess the rational use of anti-malarial drugs in the treatment of malaria in pregnancy. A total of 580 case notes of patients were collected from the medical records department. The most prevalent age group of between 15 and 20 years accounted for two hundred and two (202 (34.8%, while the least prevalent age group of between 41 and 45 years was 10 (1.7%. Majority of the patients 299 (39.5% had secondary education, and those with tertiary education being 200 (34.5%. The gestational fetal age at which malaria infection was most prevalent was between 4 and 6 months, while the least prevalent gestational fetal age was between 7 and 9 months. There was a rapid but consistent decline in the use of Chloroquine forty eight (48 (23% from 1999, to 3 (5% in 2008. Sulfadoxine-Pyrimethamine 6 (3.8% was observed to have a steady rise in use during the years 1999 to 30 (18.8% in 2008. In 1999 and 2000 there was no ACT used. In 2001, 2 (0.9% ACTs were used and increased significantly (p>0.01 to fifty three (53 (24.8% in 2008. The community was averagely literacy and most of the women could therefore be trained on proper antenatal care through seminars and counseling thereby reducing the incidence of malaria in pregnancy.

M.K. Omole

2011-02-01

193

The Ten Martini Problem  

OpenAIRE

We prove the conjecture (known as the ``Ten Martini Problem'' after Kac and Simon) that the spectrum of the almost Mathieu operator is a Cantor set for all non-zero values of the coupling and all irrational frequencies.

Avila, Artur; Jitomirskaya, Svetlana

2005-01-01

194

Ten Problems in Experimental Mathematics  

Energy Technology Data Exchange (ETDEWEB)

This article was stimulated by the recent SIAM ''100 DigitChallenge'' of Nick Trefethen, beautifully described in a recent book. Indeed, these ten numeric challenge problems are also listed in a recent book by two of present authors, where they are followed by the ten symbolic/numeric challenge problems that are discussed in this article. Our intent was to present ten problems that are characteristic of the sorts of problems that commonly arise in ''experimental mathematics''. The challenge in each case is to obtain a high precision numeric evaluation of the quantity, and then, if possible, to obtain a symbolic answer, ideally one with proof. Our goal in this article is to provide solutions to these ten problems, and in the process present a concise account of how one combines symbolic and numeric computation, which may be termed ''hybrid computation'', in the process of mathematical discovery.

Bailey, David H.; Borwein, Jonathan M.; Kapoor, Vishaal; Weisstein, Eric

2004-09-30

195

Case Study Protocol Systematic Procedures – The Case of ICT  

DEFF Research Database (Denmark)

The acceptance of empirical studies in all kind of research and their contributions is constantly growing (Yin, 2009; Farquhar, 2012). In seeking to investigate on complex real life issues for addressing human concerns on contemporary phenomena, a single analytical research method itself might not be able to corroborate the research aim (Yin, 2009). To overcome the problems of investigating on contemporary phenomenon objects, the case study methodology is well suited for such objects that hard to study in isolation (Eisenhardt, 1989; Yin, 2009). In spite of criticizing the case study research for lack of rigor, flaw in providing scientific generalization; and being biased by investigators, the critique can be met by applying suitable case study protocol with a proper guideline for understanding the study contemporary phenomena in its natural context in depth (Eisenhardt and Graebner, 2007; Yin, 2009). In practice, while few researchers are succeeding in achieving proper understanding upon contemporaryphenomenon by applying suitable case study methodology practices, there are many more researchers despite being expert lack the systematic procedures to apply for achieving that success (Yin, 2009). Thus, the need for having a suitable set of systematic procedures that contribute to the quality of the research is needed in the literature. To typify the subject, this work focuses on approaching paper’ aim by applying case study protocol on examples from information and communication technologies (ICTs). In this spirit, the rapidly expanding ICT industry is impacted by many of the same contemporary features facing the new high technology industries; in dealing with such contemporary phenomenon, ICT industry should augment experiential knowledge through empirical studies (Howells, 1995; Colecchia and Schreyer, 2002). Despite being previous empirical studies in domain of ICT (e.g. Howells, 1995), there has been a slow uptake in case study research side. It is thus important to flag this matter in the body of literature. Our research question is: what are the systematic procedures steps –ideal steps-­? for conducting case study research? And how to apply it in ICT research field? To address this question in details, this paper is compiled from literature review, mainly from the social science research area, as well as adapted to ICT research area needs. Extant literature on ICT case studies is included as well (e.g. Kozma and Anderson, 2002). Collectively, we set case study protocol into the context and discuss the motivations for ICT case studies. In essence, we design a robust case study protocol with its relevant guidelines (action plans) for applying during the study to collect, present, and analyze data fairly, in particular in domain of ICT. A further focus of our checklist in this work is to provide the necessary academic rigor to record, analyze and synthesize the comparative cases in combination with a review of the case study literature. It defines the information that needs to be gathered from the cases, the way this data is to be analyzed and the processes of reflections to be undertaken. Checklists for conducting the case study protocol are linked to each step of systematic procedures and applicable for researcher, ICT managers who study on contemporary phenomenon, reviewers, and readers. References: Colecchia, A. & Schreyer, P. (2002). ICT Investment and Economic Growth in the 1990s: Is the United States a Unique Case? : A Comparative Study of Nine OECD Countries. Review of Economic Dynamics, 5, 2, 408-­?442 Eisenhardt KM (1989). Building theories form case study research. Acad Manage Rev 14(4):532–550 doi:10.2307/258557 Eisenhardt, K. M., and Graebner, M. E. (2007). Theory building from cases: Opportunities and challenges. Academy of management journal, 50(1), 25–32. Farquhar, J. D. (2012). Case Study Research for Business. Sage Publications Ltd." Howells, J. R. (1995). Going global: the use of ICT networks in research and development. Research Policy, 24, 169-­?184 Kozma, R. & Anderson, R. (2002).

Yaghmaei, Emad; Brem, Alexander

2015-01-01

196

Mieloses funiculares considerações a propósito de 110 casos / Subacute combined degeneration of the spinal cord: an analysis of one hundred and ten cases  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: Portuguese Abstract in portuguese O autor, revendo o conceito atual da etiopatogenia das mieloses funiculares, conclui que, na determinação do processo desmielinizante, além da carência de vitamina B12 e da acloridria gástrica, participam outros fatores, carenciais e/ou alérgicos. Baseado no estudo de 110 casos com lesões gástricas [...] constitucionais (100 casos) ou adquiridas (10 casos), o autor discute o problema do diagnóstico. São consideradas as síndromes periférica, funicular dorsal, "piramidal" e encefálica. É ressaltada a importância do exame da sensibilidade vibratória, particularmente por método quantitativo, que revelou, em elevada percentagem dos casos, distúrbios da palestesia também nas mãos. Entre os exames complementares, é salientado o valor do hemograma, do mielograma, da dosagem da acidez gástrica, da determinação da absorção da vitamina B12 radioativa; são também consideradas as alterações electrencefalográficas e do liqüido cefalorraqueano. Os resultados terapêuticos em 44 casos são avaliados através do estudo semiquantitativo da sintomatologia neurológica. Embora a vitamina B12 tenha proporcionado maiores índices de melhora, os demais medicamentos (extrato hepático, ácido fólico e adrenocorticotropina) também influenciaram favoravelmente o quadro neurológico. Em vista da pequena representação numérica da casuística nos grupos correspondentes aos quatro esquemas terapêuticos, o autor não emite conclusão definitiva. Salienta, porém, que êsses resultados demonstram a necessidade de prosseguir nos estudos sôbre a etiopatogenia das mieloses funiculares, no sentido de esclarecer as numerosas incógnitas que ainda perduram. Abstract in english After a review on the present concept of the etiopathogenesis of funicular myelosis (subacute combined degeneration of the spinal cord) the author states the conclusion that in the causation of the demyelinating process, besides the lack of vitamin B]2 and gastric achlorhydria, other deficiency or a [...] llergic factors take part. Based on the study of 110 cases with constitutional (100 cases) or acquired (10 cases) gastric lesions, the author discusses the problem of the diagnosis. Peripheral, dorsal funicular, "pyramidal", and encephalic syndromes are considered. The importance of the examination of the vibration sense, particularly by quantitative methods, is emphasized; in a great percentage of cases, disturbances of this sensation were also disclosed in the upper limbs. Among the laboratory findings, the value of blood count, bone-marrow smear, gastric acidity analysis, and the study of absorption of radioactive vitamin B12 is stressed. Changes in the electroencephalogram and cerebrospinal fluid are also considered. Therapeutic results in 44 cases are estimated by the semi-quantitative study of the neurological signs. Although vitamin B12 displayed higher degree of improvement, the other drugs (liver extract, folic acid and adreno-corticotropin) have also influenced favorably the neurological manifestations. Owing to the low numerical representation of cases in the groups corresponding to the four schemes of treatment, the author does not state a definite conclusion. But he emphasizes that these results demonstrate the need of further studies on the etiopathogenesis of funicular myelosis, in an attempt to settle the several questions still unsolved.

Horacio Martins, Canelas.

1960-06-01

197

Concentrated photovoltaics, a case study  

Directory of Open Access Journals (Sweden)

Full Text Available Concentrated Photovoltaics (CPV, once a niche technology, has now reached the maturity and reliability for large scale power generation. Especially in regions where temperatures are very high, the use of high efficiency triple junction solar cells with concentrating optics allows stable energy yield. Thus CPV can be seen as complementary and not in concurrence with silicon photovoltaics. The state of the art, the advantages and limitations of this technology will be shown. Among the main advantages of CPV is the possibility of a much higher energy supply, when compared to silicon photovoltaics, both comparing CPV and silicon with same area or the same installed power. The use of recycled and recyclable materials allows a more environmentally friendly production. The possibility to couple CPV with desalination facilities, energy storage will be analysed. As an example a case study of a CPV installation in Northern Italy is discussed. Here the use of mature technologies, derived from automotive and lighting sectors resulted in a simple and efficient module.

Antonini Piergiorgio

2014-01-01

198

Horseshoe Canyon NGC case study  

Energy Technology Data Exchange (ETDEWEB)

This presentation reviewed an actual Horseshoe Canyon (HSC) natural gas from coal (NGC) case history. The HSC was chosen by Trident as a prospective for NGC in late 2000 due to its coal thickness, coal rank, shallow depth and good infrastructure. This presentation reviewed Trident's initial concept, exploration, pilot testing, commercial development and future prospects. Most of the land in the HSC was already held by various operators. Trident made deals to explore and assess whether the land was suitable for pilot testing based on permeability, gas in place, and water content. Trident drilled 6 exploratory wells at Fenn to assess HSC permeability and initial gas in place (IGIP). Core was obtained for desorption and isotherms. Results from 3 completed and tested wells revealed 30 to 140 Mcfd/well. The study showed that Fenn coals are dry and low pressure. The thickness and gas content vary and in some areas there is not enough gas in place (GIP) to warrant further testing. The main factors to consider for commercial development include productivity; drilling and completion procedures; operations; and, costs. The constraints to commercial development include surface lands; rig availability; nitrogen availability; pipelines and hookups; and, plant capacity. Trident expects to have more than 200 HSC wells drilled by year end, but ultimately, the HSC play may grow to more than 25,000 wells covering more than 8,000 square miles. tabs., figs.

Cox, D. [Trident Exploration Corp., Calgary, AB (Canada)

2004-07-01

199

Energy-motivation case study  

Energy Technology Data Exchange (ETDEWEB)

Most energy-management case studies focus on capital investments in new technical equipment, such as more-efficient boilers, lighting systems or computerised energy-management systems. The wide range of technical options for saving energy are well documented and advertised. Another aspect of energy management - namely the achievement of 'no cost' or 'good housekeeping' measures through well-organised motivation and incentive campaigns - is not so well reported. This is due to there being few examples of this type of project, which itself probably reflects the energy managers' preferences for dealing with 'hard' engineering rather than 'soft' people-orientated issues. This paper documents the development and implementation of a motivation campaign for the Social Services Department of Coventy City Council which was novel for two reasons: first, it is believed to be the first motivation campaign in a Social Services department; and secondly, it involved the use of training, incentives and feedback in an integrated way that it is believed greatly boosted its effectiveness. (author).

Fawkes, S. (Energy Partnership Ltd., London (GB)); Bratley, J. (P.A. Consulting Group, London (GB))

1989-01-01

200

Demystifying Instructional Innovation: The Case of Teaching with Case Studies  

Science.gov (United States)

Issues emerging from instructional innovation are inevitable, yet basing any curriculum shift on a theoretical framework is paramount. This paper grounds the case-based pedagogy in three learning theories: behaviorism, cognitivism, and constructivism. The three theories are described and situated in relation to the case study method. An…

Kantar, Lina D.

2013-01-01

201

Case Study: Anyone Who Had a Heart  

Science.gov (United States)

This is a case study for undergraduate students in animal physiology and can be adapted for anatomy, physiology, and/or anatomy and physiology courses. In particular this case study explores anatomy and physiology associated with the cardiovascular system (fetal and adult). Users of the National Center for Case Study Teaching in Science will be required to register (free) to gain access to the answer key (and must be of teaching status to receive the key). Included in the resource are the case overview, objectives, case study, teaching notes and answer key.

Philip J Stephens (Villanova University Biology)

2004-12-04

202

The 'fine structure' of nutrient dynamics in rivers: ten years of study using high-frequency monitoring  

Science.gov (United States)

A complete appraisal of material fluxes in flowing waters is really only possibly with high time resolution data synchronous with measurements of discharge. Defined by Kirchner et al. (2004; Hydrological Processes, 18/7) as the high-frequency wave of the future and with regard to disentangling signal noise from process pattern, this challenge has been met in terms of nutrient flux monitoring by automated bankside analysis. In Ireland over a ten-year period, time-series nutrient data collected on a sub-hourly basis in rivers have been used to distinguish fluxes from different catchment sources and pathways and to provide more certain temporal pictures of flux for the comparative definition of catchment nutrient dynamics. In catchments where nutrient fluxes are particularly high and exhibit a mix of extreme diffuse and point source influences, high time resolution data analysis indicates that there are no satisfactory statistical proxies for seasonal or annual flux predictions that use coarse datasets. Or at least exposes the limits of statistical approaches to catchment scale and hydrological response. This has profound implications for catchment monitoring programmes that rely on modelled relationships. However, using high resolution monitoring for long term assessments of catchment mitigation measures comes with further challenges. Sustaining continuous wet chemistry analysis at river stations is resource intensive in terms of capital, maintenance and quality assurance. Furthermore, big data capture requires investment in data management systems and analysis. These two institutional challenges are magnified when considering the extended time period required to identify the influences of land-based nutrient control measures on water based systems. Separating the 'climate signal' from the 'source signal' in river nutrient flux data is a major analysis challenge; more so when tackled with anything but higher resolution data. Nevertheless, there is scope to lower costs in bankside analysis through technology development, and the scientific advantages of these data are clear and exciting. When integrating its use with policy appraisal, it must be made clear that the advances in river process understanding from high resolution monitoring data capture come as a package with the ability to make more informed decisions through an investment in better information.

Jordan, Phil; Melland, Alice; Shore, Mairead; Mellander, Per-Erik; Shortle, Ger; Ryan, David; Crockford, Lucy; Macintosh, Katrina; Campbell, Julie; Arnscheidt, Joerg; Cassidy, Rachel

2014-05-01

203

Case Study of Tenure-Track Early Career Faculty in a College of Education  

Science.gov (United States)

This dissertation examines an understudied group according to the American Council on Education: the tenure-track early career faculty (ECF). The focus is on the culturalization, socialization, academic culture, and emergent themes discerned from ten semi-structured interviews with tenure-track ECF. This qualitative bounded system case study…

Esping, Gretchen Revay

2010-01-01

204

The case for case studies: Optimising the use of communication cases  

Directory of Open Access Journals (Sweden)

Full Text Available Case studies are widely used by communication and public relations practitioners and educators. Yet, despite their extensive use, the question should be asked whether public relations case studies are applied in the best possible way. Many tertiary education institutions are moving away from case study analysis as a discrete subject and instead adopting a ‘case study approach’ across the communication curriculum. This paper explores the merits of different styles of the case method and the reference materials available, and concludes that formalised analysis of case studies is essential to fully optimise their application.

Tony Jaques

2009-01-01

205

Enhancing Tourism Competitiveness of Hong Kong via Tourism Planning: A Comparative Case Study between Hong Kong and Singapore  

OpenAIRE

This article aims to recommend tourism planning in Hong Kong (HK). A comparison case study of tourism planning between Singapore and Hong Kong is discussed. Secondary data from web sites, observations and in-depth interviews of ten residents and ten tourists was conducted to investigate tourism planning in the two countries. The study discloses that the HK government should consider adopting a long term oriented plan and implement an integrated approach with their tourism planning. Sustainabi...

Kaewta Muangasame; Siyathorn Khunon

2013-01-01

206

Distinguishing case series from cohort studies.  

OpenAIRE

Case series are a commonly reported study design, but the label "case series" is used inconsistently and sometimes incorrectly. Mislabeling impairs the appropriate indexing and sorting of evidence. This article tries to clarify the concept of case series and proposes a way to distinguish them from cohort studies. In a cohort study, patients are sampled on the basis of exposure and are followed over time, and the occurrence of outcomes is assessed. A cohort study may include a comparison group...

Dekkers, Om; Egger, M.; Altman, Dg; Vandenbroucke, Jp

2012-01-01

207

Using Case Studies to Teach Science  

Science.gov (United States)

This article inspires educators to understand how case study teaching has gained a strong foothold in science education. Advances in the field include variations on methodology, from whole class discussion to the jigsaw approach, an increase in educational resources on the topic, over a thousand studies that show improved learning when case studies are used, and a survey that illustrates students enjoy and benefit from case studies.

Clyde Freeman Herreid (University at Buffalo, State University of New York; )

2005-05-01

208

The immune system status under the effect of low-level radiation: studies within the ten-kilometer zone of Chernobyl disaster  

International Nuclear Information System (INIS)

A study was made of the influence of high radiation contamination within the ten-kilometer zone of Chernobyl disaster on the structure and function of the immune system of mice. The cumulative radiation doses with respect to ?-radiation, were 0.024, 0.168 and 0.336 Gy. T-lymphocyte proliferation was shown to be activated with all radiation doses mentioned above but with doses of 0.024 and 0.168 Gy, helper T lymphocytes, and with 0.336 Gy, suppressor N-lymphocytes were primarilly activated. 9 refs., 7 figs., 2 tabs

209

Home Start Evaluation Study. Interim Case Studies IIb.  

Science.gov (United States)

The eight interim case study summaries included in this booklet are part of "Report II" of the "Home Start Evaluation Study." Each case study was developed after field visits to each of the demonstration programs by case study workers from the evaluation agencies. The summaries are divided into six areas: (1) a statistical description of the…

High/Scope Educational Research Foundation, Ypsilanti, MI.

210

The effect of manganese on the central nervous system. On the basis of ten cases with hyperintensities in the globus pallidus and a part of the brainstem on T1-weighted magnetic resonance imaging  

International Nuclear Information System (INIS)

We examined the effect of manganese (Mn) on the central nervous system, on the basis of ten cases with hyperintensities in the globus pallidus and a part of the brainstem on T1-weighted magnetic resonance imaging (MRI). These cases were divided into three groups; four cases with liver dysfunction, three cases with intravenous infusion containing Mn and three cases without any specific factor. Mn levels were measured in serum, whole blood and cerebrospinal fluid (CSF). As a result, their serum and CSF Mn levels were significantly higher (P<0.05 and P<0.01, respectively) than those of the control subjects, while their whole blood Mn levels were not significantly different. Single photon emission computed tomography demonstrated a decrease of the cerebral blood flow in the frontal lobe in four cases with the hyperintensities and in one of them the decrease improved after the disappearance of the hyperintensity. Oculogyric crisis in one case with intravenous infusion containing Mn and dystonia in one case without any specific factor also improved, when the hyperintensities disappeared. In the cases with T1-weighted MRI hyperintensities, it is important to measure serum and CSF Mn levels as well as to observe psychiatric and neurological symptoms. (author)

211

The effect of manganese on the central nervous system. On the basis of ten cases with hyperintensities in the globus pallidus and a part of the brainstem on T1-weighted magnetic resonance imaging  

Energy Technology Data Exchange (ETDEWEB)

We examined the effect of manganese (Mn) on the central nervous system, on the basis of ten cases with hyperintensities in the globus pallidus and a part of the brainstem on T1-weighted magnetic resonance imaging (MRI). These cases were divided into three groups; four cases with liver dysfunction, three cases with intravenous infusion containing Mn and three cases without any specific factor. Mn levels were measured in serum, whole blood and cerebrospinal fluid (CSF). As a result, their serum and CSF Mn levels were significantly higher (P<0.05 and P<0.01, respectively) than those of the control subjects, while their whole blood Mn levels were not significantly different. Single photon emission computed tomography demonstrated a decrease of the cerebral blood flow in the frontal lobe in four cases with the hyperintensities and in one of them the decrease improved after the disappearance of the hyperintensity. Oculogyric crisis in one case with intravenous infusion containing Mn and dystonia in one case without any specific factor also improved, when the hyperintensities disappeared. In the cases with T1-weighted MRI hyperintensities, it is important to measure serum and CSF Mn levels as well as to observe psychiatric and neurological symptoms. (author)

Katsuragi, Toshio [Yokohama City Univ. (Japan). School of Medicine

1998-03-01

212

The release of flexion contractures as a prerequisite for the treatment of pressure sores in multiple sclerosis: a report of ten cases.  

Science.gov (United States)

Ten patients with multiple sclerosis who had severe flexion contractures of the lower extremity ranging from 120 to 180 degrees were treated for large pressure sores. Each patient had at least one pressure sore in the sacral, greater trochanteric, or ischial areas. It was necessary to perform a tendon release procedure of the knee joint prior to addressing the problem of the pressure sores. Prior to treatment all patients were unable to utilize a wheelchair owing to their condition. Subsequent treatment, including development of skin flaps and skin grafts, postoperative casting, and immobilization in a special lamb's wool sling, allowed all 10 patients to improve to the point where they could utilize a wheelchair, with the result that their self-images improved. PMID:6638824

Haher, J N; Haher, T R; Devlin, V J; Schwartz, J

1983-09-01

213

The Wirtgen surface miner - two case studies  

Energy Technology Data Exchange (ETDEWEB)

This paper contains two case studies which illustrate the use of Wirtgen continuous surface miners. Case 1 is about gypsum mining in South Africa, while case 2 is concerned with production performance trials of a Wirtgen 3000 SM in a surface coal mine in Western Australia. The design, operation, operating conditions, and performance of the miners are described. 1 ref., 4 figs., 1 tab.

Buesching, R.

1988-08-01

214

Roadmaster Roading Contractors Case Study  

Directory of Open Access Journals (Sweden)

Full Text Available Systems analysis students seldom experience the practical difficulties of the initial investigation into a client?s requirements. They get little chance to practice the skills they need to investigate complex and confused problem situations, or to appreciate the wider organizational issues that can impact on a situation. This teaching case is designed to give students the opportunity to practice and apply investigation skills and to challenge them to consider the wider work environment when considering possible solutions to a problem situation. The case is conducted as a role-play, with students acting as systems analysts and teaching staff role-playing the clients. The students develop a report analyzing the client?s situation based on the issues that arise during the interviews. Feed-back sessions focus on discussing how well the students applied various interviewing strategies previously covered in lectures, and on the wider organizational problems that could impact proposed information system solutions.

Hazel Taylor

1999-01-01

215

[Leucinosis: study of a case].  

Science.gov (United States)

Report of a case of Maple syrup urine disease in a female neonate, with diagnosis at 26th day of life. The neurological picture consisted of alternating periods of hyper with hypotonicity, seizures, lethargy, poor feeding and respiratory arrest. Demonstration of elevation of plasma branched-chain amino-acids, was the most widely available confirmatory test, and the therapy with MSUD resulted in improvement of the patient. PMID:3833142

Moura-Ribeiro, M V; Funayama, C A

1985-12-01

216

Personality Effects on Romantic Relationship Quality through Friendship Quality: A Ten-Year Longitudinal Study in Youths  

OpenAIRE

This study examined whether individuals with different personality types (i.e., overcontrollers, undercontrollers, resilients) had different friendship quality development throughout adolescence. It also investigated whether personality types were indirectly related to romantic relationship quality in young adulthood, via friendship quality development in adolescence. The study employed six waves of longitudinal questionnaire data from Dutch youths who had a romantic relationship when they we...

Yu, Rongqin; Branje, Susan; Keijsers, Loes; Meeus, Wim H. J.

2014-01-01

217

Geothermal Exploration Case Studies on OpenEI (Presentation)  

Energy Technology Data Exchange (ETDEWEB)

The U.S. Geological Survey (USGS) resource assessment (Williams et al., 2008) outlined a mean 30 GWe of undiscovered hydrothermal resource in the western United States. One goal of the U.S. Department of Energy's (DOE) Geothermal Technology Office (GTO) is to accelerate the development of this undiscovered resource. DOE has focused efforts on helping industry identify hidden geothermal resources to increase geothermal capacity in the near term. Increased exploration activity will produce more prospects, more discoveries, and more readily developable resources. Detailed exploration case studies akin to those found in oil and gas (e.g. Beaumont and Foster, 1990-1992) will give developers central location for information gives models for identifying new geothermal areas, and guide efficient exploration and development of these areas. To support this effort, the National Renewable Energy Laboratory (NREL) has been working with GTO to develop a template for geothermal case studies on the Geothermal Gateway on OpenEI. In 2012, the template was developed and tested with two case studies: Raft River Geothermal Area (http://en.openei.org/wiki/Raft_River_Geothermal_Area) and Coso Geothermal Area (http://en.openei.org/wiki/Coso_Geothermal_Area). In 2013, ten additional case studies were completed, and Semantic MediaWiki features were developed to allow for more data and the direct citations of these data. These case studies are now in the process of external peer review. In 2014, NREL is working with universities and industry partners to populate additional case studies on OpenEI. The goal is to provide a large enough data set to start conducting analyses of exploration programs to identify correlations between successful exploration plans for areas with similar geologic occurrence models.

Young, K.; Bennett, M.; Atkins, D.

2014-03-01

218

Disaster exposure as a risk factor for mental health problems, eighteen months, four and ten years post-disaster – a longitudinal study  

Directory of Open Access Journals (Sweden)

Full Text Available Abstract Background Disaster experiences have been associated with higher prevalence rates of (mental health problems. The objective of this study was to examine the independent relation between a series of single disaster experiences versus the independent predictive value of a accumulation of disaster experiences, i.e. a sum score of experiences and symptoms of distress and post-traumatic stress disorder (PTSD. Methods Survivors of a fireworks disaster participated in a longitudinal study and completed a questionnaire three weeks (wave 1, eighteen months (wave 2 and four years post-disaster (wave 3. Ten years post-disaster (wave 4 the respondents consisted of native Dutch survivors only. Main outcome measures were general distress and symptoms of PTSD. Results Degree of disaster exposure (sum score and some disaster-related experiences (such as house destroyed, injured, confusion were related to distress at waves 2 and 3. This relation was mediated by distress at an earlier point in time. None of the individual disaster-related experiences was independently related to symptoms of distress. The association between the degree of disaster exposure and symptoms of PTSD at waves 2 and 3 was still statistically significant after controlling for symptoms of distress and PTSD at earlier point in time. The variable ‘house destroyed’ was the only factor that was independently related to symptoms of PTSD at wave 2. Ten years after the disaster, disaster exposure was mediated by symptoms of PTSD at waves 2 and 3. Disaster exposure was not independently related to symptoms of PTSD ten years post-disaster. Conclusions Until 4 years after the disaster, degree of exposure (a sum score was a risk factor for PTSD symptoms while none of the individual disaster experiences could be identified as an independent risk factor. Ten years post-disaster, disaster exposure was no longer an independent risk factor for symptoms of PTSD. Since symptoms of PTSD and distress at earlier waves perpetuate the symptoms at later waves, health care workers should aim their resources at those who still have symptoms after one and a half year post-disaster, to prevent health problems at medium and long-term.

van den Berg Bellis

2012-09-01

219

Case-control studies with affected sibships  

OpenAIRE

Abstract Related cases may be included in case-control association studies if correlations between related individuals due to identity-by-descent (IBD) sharing are taken into account. We derived a framework to test for association in a case-control design including affected sibships and unrelated controls. First, a corrected variance for the allele frequency difference between cases and controls was directly calculated or estimated in two ways on the basis of the fixation index FST and the in...

Köhler Karola; Sohns Melanie; Bickeböller Heike

2007-01-01

220

Waves and turbulences studies in plasmas: ten years of research on quiescent plasmas at the Brazilian Space Research National Institute  

International Nuclear Information System (INIS)

Quiescent plasmas generated by thermionic discharges and surface confined by multipole magnetic fields have been used in basic plasma research since 1973. The first machine was developed at UCLA (USA) to produce an uniform plasma for beam and waves studies in large cross section plasmas. A double quiescent plasma machine was constructed at the plasma laboratory of INPE in 1981, it began its operation producing linear ion-acoustic waves in an Argon plasma. Later on non linear ion acoustic waves and solitons were studied in plasma containing several species of negative and positive ions. The anomalous particle transport across multipole magnetic fields were also investigated. An anomalous resistivity associated with an ion acoustic turbulence is responsible for the formation of a small amplitude double-layer. The existence of a bootstrap mechanism is shown experimentally. Today, the main interest is toward the generation of Langmuir waves in non uniform plasmas. An experimental study on Langmuir wave generation using a grid system is been carried on. A magnetized quiescent plasma device for studies of whistle wave generation is been constructed. This machine will make possible future studies on several wave modes of magnetized plasmas. (author). 31 refs, 16 figs

221

Ten Emerging Technologies 2008  

Science.gov (United States)

Technology Review, published by MIT, presents their list of the ten technologies that they think are most likely to change the way we live. It includes the ten most exciting, world-changing technologies of the year. Each of the 10 technologies has a downloadable PDF description. The website also list Past 10 Emerging Techologies back to 2001. This is fun to read and may also start some interesting classroom discussions as you look back and to the future. Some of the topics include modeling surprise, probabilistic chips, nanoradio, wireless power, atomic magnetometers, offline web applications, graphene transistors, connectomics, reality mining, and cellulolytic enzymes. The resource is translated into Spanish, German, Italian and Japanese.

222

Yolngu Studies: A case study of Aboriginal community engagement  

OpenAIRE

The Yolngu studies program at Charles Darwin University has been active in the teaching of Yolngu (East Arnhemland Aboriginal) languages and culture, in collaborative transdisciplinary research, and in community engagement for well over ten years. The original undergraduate teaching program was set up under the guidance of Yolngu elders. They instituted key principles for the tertiary level teaching of Yolngu languages and culture, which reflected protocols for knowledge production and repres...

Michael Christie

2008-01-01

223

Powers of ten  

CERN Multimedia

Powers of Ten is a 1977 short documentary film written and directed by Charles Eames and his wife, Ray. The film depicts the relative scale of the Universe in factors of ten (see also logarithmic scale and order of magnitude). The film begins with an aerial image of a man reclining on a blanket; the view is that of one meter across. The viewpoint, accompanied by expository voiceover, then slowly zooms out to a view ten meters across ( or 101 m in standard form), revealing that the man is picnicking in a park with a female companion. The zoom-out continues, to a view of 100 meters (102 m), then 1 kilometer (103 m), and so on, increasing the perspectiveâ??the picnic is revealed to be taking place near Soldier Field on Chicago's waterfrontâ??and continuing to zoom out to a field of view of 1024 meters, or the size of the observable universe. The camera then zooms back in to the picnic, and then to views of negative powers of tenâ??10-1 m (10 centimeters), and so forth, until we are viewing a carbon nucl...

Pyramid FILMS

1977-01-01

224

The Study Guides and Strategies Website (www.studygs.net): Ten-Year Update and Current Applications  

Science.gov (United States)

Over five years ago the author began his "TechTrends" column, then titled "E-Learning by Design," with a self interview. In that first column he interviewed himself on how he came to develop the Study Guides and Strategies (SGS) Website www.studygs.net. This educational public service and resource now contains 120 topics (200 English webpages) in…

Landsberger, Joe

2006-01-01

225

Vasovagal Syncope Case Study/Laboratory Supplement  

Science.gov (United States)

This is a case study emphasizing neural control of the cardiovascular system. This study was designed to be completed during an undergraduate anatomy and physiology laboratory period on the study of blood pressure and hemodynamics. This case study involves guided student exploration in understanding of the autonomic nervous system, heart rate, total peripheral resistance, cardiac output, blood pressure, and autoregulatory range. This study also includes an optional section on cardiovascular responses in pregnancy.

PhD Jan Foster (North Greenville University Biology)

2012-05-01

226

Case studies in conservation science  

Science.gov (United States)

The research presented in this dissertation covers three separate topics of conservation as defined by the National Science Foundation: 1) Materials Stabilization, Strengthening, Monitoring, and Repair; 2. Understanding Material Degradation and Aging; and 3) Materials and Structural Characterization of Cultural Heritage Objects (the 'technical study'). The first topic is addressed through a study to assess the consolidant tetraethoxysilane for the stabilization of alum treated wood. Falling under materials degradation studies is a study published in American Museum Novitates to understand how environmental conditions affect the aging of fossil resins from five different deposits. Two separate studies are included in technical study of cultural heritage objects which comprises the third research area of materials characterization. The first is a survey of red dyes used in Chinese paintings from the Ming Dynasty to the Early Republic (1364-1911). The second is a study of the pigments, dyes and binders used in Hawaiian barkcloth (kapa) from the 19th century.

Bisulca, Christina

227

Teaching Business Demography Using Case Studies  

OpenAIRE

Many faculty members consider using case studies but not all end up using them. We provide a brief review of what cases are intended to do and identify three ways in which they can be used. We then use an example to illustrate how we have used the case study method in teaching business demography. Among other benefits, we note that the case studies method not only encourages the acquisition of skills by students, but can be used to promote “deep structure learning,” an approach naturally ...

Swanson, David A.; Morrison, Peter A.

2009-01-01

228

Trends of Tuberculosis Case Notification and Treatment Outcomes in the Sidama Zone, Southern Ethiopia: Ten-Year Retrospective Trend Analysis in Urban-Rural Settings  

Science.gov (United States)

Background Ethiopia is one of the high tuberculosis (TB) burden countries. An analysis of trends and differentials in case notifications and treatment outcomes of TB may help improve our understanding of the performance of TB control services. Methods A retrospective trend analysis of TB cases was conducted in the Sidama Zone in southern Ethiopia. We registered all TB cases diagnosed and treated during 2003–2012 from all health facilities in the Sidama Zone, and analysed trends of TB case notification rates and treatment outcomes. Results The smear positive (PTB+) case notification rate (CNR) increased from 55 (95% CI 52.5–58.4) to 111 (95% CI 107.4–114.4) per 105 people. The CNRs of PTB+ in people older than 45 years increased by fourfold, while the mortality of cases during treatment declined from 11% to 3% for smear negative (PTB-) (X2trend, P<0.001) and from 5% to 2% for PTB+ (X2trend, P<0.001). The treatment success was higher in rural areas (AOR 1.11; CI 95%: 1.03–1.2), less for PTB- (AOR 0.86; CI 95%: 0.80–0.92) and higher for extra-pulmonary TB (AOR 1.10; CI 95%: 1.02–1.19) compared to PTB+. A higher lost-to-follow up was observed in men (AOR 1.15; CI 95%: 1.06–1.24) and among PTB- cases (AOR 1.14; CI 95%: 1.03–1.25). More deaths occurred in PTB-cases (AOR 1.65; 95% CI: 1.44–1.90) and among cases older than 65 years (AOR 3.86; CI 95%: 2.94–5.10). Lastly, retreatment cases had a higher mortality than new cases (6% vs 3%). Conclusion Over the past decade TB CNRs and treatment outcomes improved, whereas the disparities of disease burden by gender and place of residence reduced and mortality declined. Strategies should be devised to address higher risk groups for poor treatment outcomes. PMID:25460363

Dangisso, Mesay Hailu; Datiko, Daniel Gemechu; Lindtjørn, Bernt

2014-01-01

229

Case study of sealant reversion  

Energy Technology Data Exchange (ETDEWEB)

Numerous failures of building seals and sealants have logical and, in most cases, simple explanations as to why the seal or sealant failed to function as intended. This paper focuses on a failure mechanism that is not as apparent or simple to explain, failure caused by improper mixing of two part sealant of the reversion of cured sealant. On two separate buildings with the same sealant, the authors encountered a varied mode of failure. This paper documents the investigation of one of these projects and discusses the failure phenomena in relation to the orientation of the sealant joints and the analysis of physical properties of seals exposed to varied conditions of ultraviolet radiation and elevated temperatures. It is concluded that reversion in certain types of polyurethane sealants compounded with benzoate based plasticizer is more likely when exposed to conditions of high levels of ultraviolet radiation and elevated temperatures.

Kenney, R.J.; Piper, R.S. [R.J. Kenney Associates, Inc., Plainville, MA (United States)

1996-12-31

230

Case Study: While you were sleeping...  

Science.gov (United States)

A case study designed for undergraduate biology majors enrolled in a two semester A&P course on an aspect of respiratory physiology. The case study on Obstructive Sleep Apnea is intended to stimulate critical thinking on the part of the students and to assist students in understanding the role of the chemoreceptors and their influence on the respiratory center in the medulla oblongata.

Ms. Jeannette K Hafey (Springfield College Biology/Chemistry)

2010-05-24

231

Ten-year absolute risk of osteoporotic fractures according to BMD T score at menopause : the Danish Osteoporosis Prevention Study  

DEFF Research Database (Denmark)

In the non-HRT arms of the DOPS study, 10-year fracture risk was higher at each level of T score than predicted by the Kanis algorithm. Under-reporting of fractures in registers and inclusion of HRT users are probable explanations for inappropriately low fracture risk estimates for younger women. INTRODUCTION: International recommendations highlight the importance of absolute fracture risk in establishing intervention thresholds. The available estimates of long-term risk have been derived by combining relative risks from meta-analyses with U.S. normative BMD data and Swedish fracture incidence records. We validated the 2001 Kanis risk algorithm using incident fractures observed in untreated women in the first 10 years of the Danish Osteoporosis Prevention Study (DOPS). Comparisons were also made with the relative risks derived from a recent meta-analysis of 12 cohort studies. MATERIALS AND METHODS: We analyzed DXA of the spine and hip from 872 women who were enrolled in the non-hormone replacement therapy (HRT) arms of the study and had not received HRT, bisphosphonates, or raloxifene. We collected verified reports of fractures at each visit. We focused on fractures of the hip, spine, shoulder, and forearm to provide risks comparable with the Kanis algorithm. Accordingly, asymptomatic radiographic vertebral fractures were not included. RESULTS: Seventy-eight women (9%) sustained relevant fractures. The risk of fracture increased by 1.32 (95% CI, 1.02; 1.70) for each unit decrease in femoral neck T score and by 1.30 (95% CI, 1.06; 1.58) for each unit decrease in lumbar spine T score at baseline. Absolute fracture risk was higher than expected from the Kanis algorithm at all T score levels. The difference was greatest for participants in the higher range of T scores. At T = -1, the observed risk was 10.9% as opposed to an expected risk of 5.7%. Relative risk gradients were similar to those of the recent meta-analysis. CONCLUSIONS: In healthy women, examined in the first year or two after menopause, 10-year fracturerisk was higher at each level of BMD T score than expected from the model by Kanis et al. Inclusion of HRT users in the cohorts used may have led to higher BMD values and lower absolute fracture risk in the Kanis model. These longitudinal data can be used directly in estimating absolute fracture risk in untreated north European women from BMD at menopause.

Abrahamsen, Bo; Vestergaard, Peter

2006-01-01

232

Ten-year absolute risk of osteoporotic fractures according to BMD T score at menopause: the Danish Osteoporosis Prevention Study  

DEFF Research Database (Denmark)

In the non-HRT arms of the DOPS study, 10-year fracture risk was higher at each level of T score than predicted by the Kanis algorithm. Under-reporting of fractures in registers and inclusion of HRT users are probable explanations for inappropriately low fracture risk estimates for younger women. INTRODUCTION: International recommendations highlight the importance of absolute fracture risk in establishing intervention thresholds. The available estimates of long-term risk have been derived by combining relative risks from meta-analyses with U.S. normative BMD data and Swedish fracture incidence records. We validated the 2001 Kanis risk algorithm using incident fractures observed in untreated women in the first 10 years of the Danish Osteoporosis Prevention Study (DOPS). Comparisons were also made with the relative risks derived from a recent meta-analysis of 12 cohort studies. MATERIALS AND METHODS: We analyzed DXA of the spine and hip from 872 women who were enrolled in the non-hormone replacement therapy (HRT) arms of the study and had not received HRT, bisphosphonates, or raloxifene. We collected verified reports of fractures at each visit. We focused on fractures of the hip, spine, shoulder, and forearm to provide risks comparable with the Kanis algorithm. Accordingly, asymptomatic radiographic vertebral fractures were not included. RESULTS: Seventy-eight women (9%) sustained relevant fractures. The risk of fracture increased by 1.32 (95% CI, 1.02; 1.70) for each unit decrease in femoral neck T score and by 1.30 (95% CI, 1.06; 1.58) for each unit decrease in lumbar spine T score at baseline. Absolute fracture risk was higher than expected from the Kanis algorithm at all T score levels. The difference was greatest for participants in the higher range of T scores. At T = -1, the observed risk was 10.9% as opposed to an expected risk of 5.7%. Relative risk gradients were similar to those of the recent meta-analysis. CONCLUSIONS: In healthy women, examined in the first year or two after menopause, 10-year fracture risk was higher at each level of BMD T score than expected from the model by Kanis et al. Inclusion of HRT users in the cohorts used may have led to higher BMD values and lower absolute fracture risk in the Kanis model. These longitudinal data can be used directly in estimating absolute fracture risk in untreated north European women from BMD at menopause.

Abrahamsen, Bo; Vestergaard, Peter

2006-01-01

233

Personality effects on romantic relationship quality through friendship quality: a ten-year longitudinal study in youths.  

Science.gov (United States)

This study examined whether individuals with different personality types (i.e., overcontrollers, undercontrollers, resilients) had different friendship quality development throughout adolescence. It also investigated whether personality types were indirectly related to romantic relationship quality in young adulthood, via friendship quality development in adolescence. The study employed six waves of longitudinal questionnaire data from Dutch youths who had a romantic relationship when they were young adults. Two age cohorts were followed, from 12 to 21 years and from 16 to 25 years, respectively. Findings showed that resilients reported higher mean levels of friendship quality during adolescence (i.e., more support from, less negative interaction with and less dominance from their best friend) than both overcontrollers and undercontrollers. Through the mean levels of friendship quality throughout adolescence, resilients indirectly experienced higher romantic relationship quality during young adulthood than both overcontrollers and undercontrollers. Thus, results provide support for a developmental model in which adolescent friendship quality is a mechanism linking personality types with young adulthood romantic relationship quality. PMID:25232964

Yu, Rongqin; Branje, Susan; Keijsers, Loes; Meeus, Wim H J

2014-01-01

234

Five case studies of multifamily weatherization programs  

Energy Technology Data Exchange (ETDEWEB)

The multifamily case studies that are the subject of this report were conducted to provide a better understanding of the approach taken by program operators in weatherizing large buildings. Because of significant variations in building construction and energy systems across the country, five states were selected based on their high level of multifamily weatherization. This report summarizes findings from case studies conducted by multifamily weatherization operations in five cities. The case studies were conducted between January and November 1994. Each of the case studies involved extensive interviews with the staff of weatherization subgrantees conducting multifamily weatherization, the inspection of 4 to 12 buildings weatherized between 1991 and 1993, and the analysis of savings and costs. The case studies focused on innovative techniques which appear to work well.

Kinney, L; Wilson, T.; Lewis, G. [Synertech Systems Corp. (United States); MacDonald, M. [Oak Ridge National Lab., TN (United States)

1997-12-31

235

Ten di- and trinucleotide microsatellite loci in the Caribbean spiny lobster, Panulirus argus, for studies of regional population connectivity.  

Science.gov (United States)

We describe 10 microsatellite loci for Panulirus argus (Caribbean spiny lobster). The number of alleles at each locus ranged from four to 39 (mean = 21.8) in 89 juvenile specimens collected at two different times at a recruitment site in south Florida. Levels of expected and observed heterozygosities ranged from 0.48 to 0.96 (mean = 0.83) and from 0.32 to 0.98 (mean = 0.71), respectively. Significant departures from Hardy-Weinberg equilibrium were observed at two loci. There was no evidence of genotypic disequilibrium for any pair of loci. Overall, the loci were well resolved, highly polymorphic and independently segregating, confirming their utility for population genetic studies. PMID:21585860

Tringali, Michael D; Seyoum, Seifu; Schmitt, Samantha L

2008-05-01

236

A retrospective study of 91 cases with gastroschisis or omphalocele 1956-1985.  

Science.gov (United States)

The experiences of treatment of 91 infants with abdominal wall defects during thirty years are presented. The occurrence of gastroschisis increased during the last ten years. The results of treatment have improved markedly during the period of study but there is still a high mortality rate in children with omphalocele and multiple concomitant malformations and in children with gastroschisis and coexisting intestinal atresia. In cases with large omphalocele defects, if primary closure is not possible, an implant is recommended instead of silastic silo, skin flap closure or mercurochrome application. The clinical course in thirty-six patients during the last ten years is reported. PMID:2964155

Lindham, S; Ramel, S

1987-12-01

237

Comparative pathogenicity study of ten different betanodavirus strains in experimentally infected European sea bass, Dicentrarchus labrax (L.).  

Science.gov (United States)

Viral encephalopathy and retinopathy (VER), otherwise known as viral nervous necrosis (VNN), is a severe pathological condition caused by RNA viruses belonging to the Nodaviridae family, genus Betanodavirus. The disease, described in more than 50 fish species worldwide, is considered as the most serious viral threat affecting marine farmed species in the Mediterranean region, thus representing one of the bottlenecks for further development of the aquaculture industry. To date, four different genotypes have been identified, namely red-spotted grouper nervous necrosis virus (RGNNV), striped jack nervous necrosis virus (SJNNV), tiger puffer nervous necrosis virus and barfin flounder nervous necrosis virus, with the RGNNV genotype appearing as the most widespread in the Mediterranean region, although SJNNV-type strains and reassortant viruses have also been reported. The existence of these genetically different strains could be the reason for the differences in mortality observed in the field. However, very little experimental data are available on the pathogenicity of these viruses in farmed fish. Therefore, in this study, the pathogenicity of 10 isolates has been assessed with an in vivo trial. The investigation was conducted using the European sea bass, the first target fish species for the disease in the Mediterranean basin. Naive fish were challenged by immersion and clinical signs and mortality were recorded for 68 days; furthermore, samples collected at selected time points were analysed to evaluate the development of the infection. Finally, survivors were weighed to estimate the growth reduction. The statistically supported results obtained in this study demonstrated different pathogenicity patterns, underlined the potential risk represented by different strains in the transmission of the infection to highly susceptible species and highlighted the indirect damage caused by a clinical outbreak of VER/VNN. PMID:23662921

Vendramin, N; Toffan, A; Mancin, M; Cappellozza, E; Panzarin, V; Bovo, G; Cattoli, G; Capua, I; Terregino, C

2014-04-01

238

Outage management: A case study  

Energy Technology Data Exchange (ETDEWEB)

Outage management issues identified from a field study conducted at a two-unit commercial pressurized water reactor (PWR), when one unit was in a refueling outage and the other unit was at full power operation, are the focus of this paper. The study was conduced as part of the US Nuclear Regulatory Commission's (NRC) organizational factors research program, and therefore the issues to be addressed are from an organizational perspective. Topics discussed refer to areas identified by the NRC as critical for safety during shutdown operations, including outage planning and control, personnel stress, and improvements in training and procedures. Specifically, issues in communication, management attention, involvement and oversight, administrative processes, organizational culture, and human resources relevant to each of the areas are highlighted by example from field data collection. Insights regarding future guidance in these areas are presented based upon additional data collection subsequent to the original study.

Haber, S.B.; Barriere, M.T. (Brookhaven National Lab., Upton, NY (United States)); Roberts, K.H. (California Univ., Berkeley, CA (United States). Walter A. Haas School of Business)

1992-01-01

239

Outage management: A case study  

Energy Technology Data Exchange (ETDEWEB)

Outage management issues identified from a field study conducted at a two-unit commercial pressurized water reactor (PWR), when one unit was in a refueling outage and the other unit was at full power operation, are the focus of this paper. The study was conduced as part of the US Nuclear Regulatory Commission`s (NRC) organizational factors research program, and therefore the issues to be addressed are from an organizational perspective. Topics discussed refer to areas identified by the NRC as critical for safety during shutdown operations, including outage planning and control, personnel stress, and improvements in training and procedures. Specifically, issues in communication, management attention, involvement and oversight, administrative processes, organizational culture, and human resources relevant to each of the areas are highlighted by example from field data collection. Insights regarding future guidance in these areas are presented based upon additional data collection subsequent to the original study.

Haber, S.B.; Barriere, M.T. [Brookhaven National Lab., Upton, NY (United States); Roberts, K.H. [California Univ., Berkeley, CA (United States). Walter A. Haas School of Business

1992-09-01

240

Assessment of the effectiveness of interferential current therapy and TENS in the management of carpal tunnel syndrome: a randomized controlled study.  

Science.gov (United States)

We assessed the effectiveness of interferential current (IFC) and transcutaneous electrical nerve stimulation (TENS) therapies in the management of carpal tunnel syndrome (CTS) compared with splint therapy, a standard treatment modality for CTS. This was a prospective, single-blinded, single-center, randomized, three-group parallel intervention study of 3 weeks duration. Efficacy was examined in the third week after the end of treatments. Subjects were assigned randomly to one of three groups: group I patients received splint therapy, group II patients received TENS applied on the palmar surface of the hand and the carpal tunnel, and group III patients underwent IFC therapy applied on the palmar surface of the hand and the volar surface of the forearm. TENS and ICF treatments were applied five times weekly for a total of 15 sessions. Group 1 patients were stabilized with volar wrist splints for 3 weeks. The efficacy of the therapies was assessed before initiation of therapy and at 3 weeks after completion of therapy using a visual analog scale (VAS), a symptom severity scale, the functional capacity scale of the BCTQ, and measurement of median nerve motor distal latency (mMDL) and median sensory nerve conduction velocity (mSNCV). Groups were compared pairwise using the Mann-Whitney U test to identify the source of differences between groups. The Wilcoxon test was used to analyze changes in variables over time within a group. In the VAS, BCTQ, MDL, and mSNCV, no significant difference was observed between the groups (p > 0.05). In the VAS, BCTQ, and mSNCV, statistically significant improvements were detected in all groups (p TENS and splint therapy with respect to improvement in clinical scores, whereas IFC therapy provided a significantly greater improvement in VAS, mMDL, and mSNCV values than splint therapy (VAS: 4.80 ± 1.18 and 6.37 ± 1.18; p = 0.001, mMDL: 3.89 ± 0.88 and 4.06 ± 0.61; p = 0.001, mSNCV: 41.80 ± 1.76 and 40.75 ± 1.48; p = 0.010). IFC therapy provided a significantly greater improvement in VAS, symptom severity, functional capacity, and mMDL and mSNCV values than TENS therapy (VAS: 4.80 ± 1.18 and 6.68 ± 1.42; p < 0.001, symptom severity: 2.70 ± 1.03 and 3.37 ± 1.21; p = 0.015, functional capacity: 1.90 ± 1.21 and 2.50 ± 0.78; p = 0.039, mMDL: 3.89 ± 0.88 and 4.06 ± 0.88; p = 0.003, and mSNCV: 41.80 ± 1.76 and 41.38 ± 1.78; p = 0.021). IFC may be considered a new and safe therapeutic option for the treatment of CTS. PMID:24728028

Koca, Irfan; Boyaci, Ahmet; Tutoglu, Ahmet; Ucar, Mehmet; Kocaturk, Ozcan

2014-12-01

241

Labyrinthine sequestrum: four case studies.  

Science.gov (United States)

Labyrinthine sequestrum, a rare form of labyrinthitis, is highly distinct from the more commonly encountered labyrinthitis ossificans based on its unique clinical, radiologic, and histologic characteristics. The study included 4 such patients who had undergone clinical and laboratory investigations, computed tomography (CT), and magnetic resonance imaging (MRI) assessments followed by surgical procedures and pathological evaluation. Their major symptoms were otorrhea, otalgia, tinnitus, and profound hearing loss. Imaging studies showed an osteolytic soft mass with calcified debris in the inner ear, and the bony labyrinth was eroded partly or completely by granulation mass, with loss of bony morphology. Further pathological examination was coincident with inflammatory granulation tissue with some calcification or osseous tissue. The disease process is attributed to chronic osteomyelitis due to the presence of osteonecrosis. Prompt CT and MRI examinations and optimal therapeutic management facilitate definitive diagnosis and protect against fatal complications. PMID:22467283

Lao, Zheng; Sha, Yan; Chen, Bing; Dai, Chun-Fu; Huang, Wen-Hu; Cheng, Yu-Shu

2012-09-01

242

Energy Audit: A Case Study  

OpenAIRE

This India is the Fifth largest producer of Electricalenergy in the world. Despite such achievements the gapbetween demand and supply of electrical energy is increasingevery year and power sector is highly capital – intensive. Thusthe deficit in installed capacity was nearly 10000MWper year.So the gap between demand and supply is continuouslyincreasing day by day. An energy audit is a study of a plant orfacility to determine how and where energy is used and toidentify methods for energy sav...

Sanjay Kumar; Tarlochan Kaur

2013-01-01

243

A Case Study of Engineering Ethics  

Science.gov (United States)

In Engineering Ethics Class at Shizuoka University, the Code of Ethics and Cases for Electrical Engineers by IEEJ Ethics committee is used to promote for high education effect to correspond large number of students (140students). In this paper, a case study in the class, and survey results for ethics value of students are presented. In addition, some comments for role playing act on the case of virtual experiences by students are described.

Shimizu, Kazuo

244

A study on heparin in complex with L1 protein of ten high risk Human Papillomavirus: new structural insights based on in silico analysis  

Directory of Open Access Journals (Sweden)

Full Text Available Human papillomavirus (HPV is one of the most common causes of sexually transmitted diseases in both men and women around the world. It has been suggested that the heparan sulfate constitute the main receptor recognized by HPV, however its role during the interactions with other HPV is not very clear. BC, DE, EF, FG, and HI are the five loops displayed on the surface of the pentamer which can interact with heparin as an analogue for heparan sulfate. In this study, the L1 late protein of ten high risks HPV (HR HPV L1 corresponding to the types 31/33/35/39/45/51/52/56/58/59 were analyzed using in silico methods by looking for insights related to HR HPV L1-loops and heparin interactions. The five loop regions (BC, DE, EF, FG and HI of the ten HR HPV L1 interact with heparin, where the interaction established between the BC-loop and heparin was found to be present in all the HR HPV L1 analyzed in this study as well as those reported in the scientist literature. Moreover it was found that lysine residues are involves in most of interactions and that the chargecharge and polar interactions are stabilizing the HR HPV L1-heparin interaction. The results obtained in this work with all the in silico methods; suggest that the heparin-binding site in the loops for all the HR HPV plays an important role during HR HPV infections, where BC-loop constitute the most required structure during the HR HPV L1-heparin interactions. The charge-charge and polar interactions are the main forces stabilizing the HR HPV L1-heparin.

Jorge Félix Beltrán Lissabet

2015-01-01

245

GeoTech Center Case Studies  

Science.gov (United States)

The GeoTech Center curated this list of case studies which will be useful sources of information for instructors in this subject area. Included in the list are Academic Case Studies, which  contain information which "highlights exemplary geospatial technology academic programs from around the US.  These programs exhibit the use of best practices in student recruitment, retainment, and graduation rates.â??" Also available are Administrative case studies, where instructors can find resources which "provides examples of innovative uses of GIS technology in the management and administration of colleges.â??"

246

Mining Product Data Models: A Case Study  

OpenAIRE

This paper presents two case studies used to prove the validity of some data-flow mining algorithms. We proposed the data-flow mining algorithms because most part of mining algorithms focuses on the control-flow perspective. First case study uses event logs generated by an ERP system (Navision) after we set several trackers on the data elements needed in the process analyzed; while the second case study uses the event logs generated by YAWL system. We offered a general solution of data-flow m...

Dolean, Cristina-claudia

2014-01-01

247

A network security case study  

International Nuclear Information System (INIS)

This paper reports on a study to validate the Graphical Network Representation (GRPHREP) model which is being conducted on the Los Alamos National Laboratory Integrated Computer Network (ICN). The GRPHREP model is a software system application based on graph theory and object-oriented programming methodologies. It codified the Department of Energy (DOE) Order 5637.1, which is concerned with classified computer secret policy, restrictions, and requirements. The Los Alamos ICN is required to control access to and support large-scale scientific and administrative computing. Thus, large-scale scientific and administrative computing. Thus we felt that this large, complex, and dynamic network would provide a good test for the graphical and functional capabilities of the model. Furthermore, the ICN is composed of multiple partitions that reflect the sensitivity and classification of the computation (data) and designate the required clearance level for the user

248

Case studies of steel structure failures  

Directory of Open Access Journals (Sweden)

Full Text Available The contribution deals with some case studies of steel structure failures, which happened in Slovakia a few years ago. Features of cracking are illustrated on real cases of breakdowns in the transmission gas pipelines, at the cement works and in the petrochemical indus-try. All failures were caused by an incorrect technical approach. Possible remedial measures are proposed.

P. Bernasovský

2010-01-01

249

Energy Audit: A Case Study  

Directory of Open Access Journals (Sweden)

Full Text Available This India is the Fifth largest producer of Electricalenergy in the world. Despite such achievements the gapbetween demand and supply of electrical energy is increasingevery year and power sector is highly capital – intensive. Thusthe deficit in installed capacity was nearly 10000MWper year.So the gap between demand and supply is continuouslyincreasing day by day. An energy audit is a study of a plant orfacility to determine how and where energy is used and toidentify methods for energy savings. The opportunities lie inthe use of existing renewable energy technologies, greaterefforts at energy efficiency and the dissemination of thesetechnologies and options. This thesis provides an overview of ageneral energy conservation measures (ECMs that can becommonly recommended for NIT Hamirpur. It should be notedthat the Energy auidut presented in this paper does not pretendto be exhaustive nor comprehensive. It provides merely toindicate some of the options that energy auditor can considerwhen performing an analysis of this institute. Energyconservation and exploration of new energy avenues are thewell accepted solution to fulfil the demand in future. The totalcost of energy plays a vital role in determining the product costof a commodity. Therefore the identification of potential energysavings and implementation for a given institutional facility isunimportant to ensure its competitive advantage over otherinstitute. This paper work presents such energy saving methodsin a methodological approach, experienced during a detailedenergy audit of NIT Hamirpur.

Sanjay Kumar

2013-06-01

250

Hemofiltración continua en pacientes con complicaciones abdominales del síndrome hemolítico urémico: Report of ten cases / Continuous hemofiltration in children with abdominal complications of hemolytic uremic syndrome  

Scientific Electronic Library Online (English)

Full Text Available SciELO Chile | Language: Spanish Abstract in spanish [...] Abstract in english Background: Close to one half of patients with hemolytic uremic syndrome (HUS) will require a dialytic therapy, mainly peritoneal dialysis (PD). In some cases, PD may have relative or absolute contraindications, usually when HUS is associated to severe intra-abdominal complications. Aim: To report t [...] he results of continuous hemofiltration use, in children with abdominal complications of HUS. Material and methods: Retrospective review of the files of 40 patients that were admitted to our pediatric unit with HUS, since 1995. Six children had relevant intra-abdominal complications and were treated with continuous hemofiltration (CHF). Four additional children, with similar HUS related complications and treated with CHF before 1995, were included in the analysis. Results: The age of the patients ranged from 5 to 66 months old. An arterio-venous CHF was performed in four and veno-venous CHF in six children. The duration of CHF was 93.2 hours in average. Adequate control of volemia was achieved in every patient; diafiltration with peritoneal dialysis solution was added in five patients, to improve azotemia. Four patients had complications related to the vascular access or the anticoagulation procedure. The procedure was terminated due to improvement of diuresis in five cases, transfer to PD in four and a cardiorespiratory arrest in one. Only one patient developed a chronic renal failure during the follow up. Conclusions: CHF is an effective and safe alternative of acute renal replacement therapy in the management of renal failure in pediatric cases with HUS, aggravated with abdominal complications (Rev Méd Chile 2002; 130: 768-72).

Felipe, Cavagnaro SM; Andrea, Vogel S; Ricardo, Ronco M; José Ignacio, Rodríguez C.

2002-07-01

251

Towards More Case Study Research in Entrepreneurship  

Directory of Open Access Journals (Sweden)

Full Text Available Entrepreneurship as an emerging discipline has made good strides, but according to some, has fallen short of bringing its theory and literature up to the standards of others in the management sciences. Rich with the descriptive detail needed for insightful theory building in entrepreneurship, scholars have called for more case study research, particularly those incorporating non-retrospective and longitudinal observations. At the same time however, it has become rare to find such research published in A-level journals dedicated to entrepreneurship. A survey presented here of major entrepreneurship journals over the past six years revealed a publication rate of only 3% using the case study method. This presents a major impediment for developing fresh research in this field based upon the study of real cases. The author explores how the case study method has been applied to entrepreneurship research and provides recommendations for improved publication rates.

Tom Duxbury

2012-03-01

252

A Comparative Comment on the Case Studies  

DEFF Research Database (Denmark)

Denne konklusion sammenfatter hovedtrækkene af de gennemførte case studies i WorkAble-projektet. Vigtige pointer er, at unge på tværs af de forskellige case studies har vanskeligt ved at blive hørt og taget alvorligt. I stedet spises de af med "realistisk vejledning" eller dårlige uddannelses- og arbejdstilbud. Konklusionen foreslår at give unge mere tid til at træffe de alvorlige valg vedr. deres fremtid ved at indføre et refugium, som i tankegang minder om Eriksons ungdomsmoratorium.

Kjeldsen, Christian Christrup; Ley, Thomas

2012-01-01

253

Using Case Studies to Teach Science  

Science.gov (United States)

Storytelling as a formal educational device arguably entered the didactic scene about 100 years ago with case study teaching at Harvard (Herreid 1994). There in the law and business schools, instructors and students analyzed realistic stories as exemplars of good and bad practice. Today, however, storytelling does not have to be limited to the traditional discussion formula advocated in these schools. This chapter describes various types of case study methods, reviews their virtues and weaknesses, and discusses the impact of case-based instruction in science education.

Clyde Freeman Herreid

2006-01-01

254

TenTen: A New Array of Multi-TeV Imaging Cherenkov Telescopes  

CERN Document Server

The exciting results from H.E.S.S. point to a new population of gamma-ray sources at energies E > 10 TeV, paving the way for future studies and new discoveries in the multi-TeV energy range. Connected with these energies is the search for sources of PeV cosmic-rays (CRs) and the study of multi-TeV gamma-ray production in a growing number of astrophysical environments. TenTen is a proposed stereoscopic array (with a suggested site in Australia) of modest-sized (10 to 30m^2) Cherenkov imaging telescopes with a wide field of view (8 to 10deg diameter) optimised for the E~10 to 100 TeV range. TenTen will achieve an effective area of ~10 km^2 at energies above 10 TeV. We outline here the motivation for TenTen and summarise key performance parameters.

Rowell, G; Clay, R; Dawson, B; Denman, J; Protheroe, R; Smith, A G K; Thornton, G; Wild, N

2007-01-01

255

A Case Study about Communication Strategies  

Science.gov (United States)

The primary purpose of this case study was to identify what were Taiwanese University English as a Foreign Language (EFL) learners' perceptions about learning communication strategies. This study collected qualitative data about students' beliefs and attitudes as they learned communication strategies. The research question guiding the study was:…

Lin, Grace Hui Chin

2011-01-01

256

Eccrine Angiomatous Hamartoma: A Retrospective Study of 15 Cases  

Directory of Open Access Journals (Sweden)

Full Text Available Background: Eccrine angiomatous hamartoma (EAH comprises a rare nevoid proliferation of normal eccrine glands and small blood vessels and occasionally otherelements in the middle and deep dermis with variable clinical manifestations.Case series have rarely been published except for case reports and literaturereviews. The aims of this article were to investigate the clinical and pathologic features of patients with EAH in Taiwan and to compare our resultswith the results of previous studies.Methods: A retrospective review of medical records and histopathological findings wasperformed on patients diagnosed with EAH in a medical center in Taiwanbetween 1994 and 2010.Results: Fifteen patients with pathologically diagnosed EAH were collected. Themean age at the time of diagnosis was 38.6 years (range, birth to 67 years.The male to female ratio was 3 to 2. In most cases, EAH arose as a singlelesion on a lower extremity. The symptoms and signs most commonly associated with EAH were pain (60%, hypertrichosis (13.3%, itching (13.3%and hyperhidrosis (6.7%. Additional pathological findings included hemangioma (13.3%, verrucous hemangioma (6.7%, arteriovenous malformation(6.7%, and angiokeratoma (6.7%. None of the patients experienced spontaneous regression of the lesions before excision. Excisions were done in onepatient under general anesthesia, and ten patients with local anesthesia. Fourpatients were kept under observation. Tumor recurrences were noted in twoout of the eleven patients whose lesions were excised.Conclusion: Compared with cases in the literature, we found additional histopathologicalfindings and an increased tumor recurrence risk in our cohort. EAH remainsa benign and uncommon hamartomatous condition. Further multi-center, retrospective studies with larger case numbers are needed to better characterizethe disease presentation in Asian populations.

Yi-Ting Lin

2012-04-01

257

Prophylactic titanium elastic nailing (TEN) following femoral lengthening (Lengthening then rodding) with one or two nails reduces the risk for secondary interventions after regenerate fractures: a cohort study in monolateral vs. bilateral lengthening procedures  

OpenAIRE

Background: Femoral fracture rates of up to 30% have been reported following lengthening procedures using fixators. “Lengthening then rodding” uses one or two titanium elastic nails (TENs) for prophylactic intramedullary nailing to reduce this complication. The aim of the study was to decide if usage of only one TEN is safe or has it a higher risk of getting a fracture? And we asked if there is a difference between patients with monolateral or bilateral lengthening procedures according to...

Schiedel, F.; Elsner, U.; Gosheger, G.; Vogt, B.; Ro?dl, R.

2014-01-01

258

Case-control studies: a sequential approach.  

Science.gov (United States)

A sequential approach to the design of a matched pair case-control study is proposed as an alternative to fixed sample plans when information on case-control pairs is acquired sequentially in time. The method described is that of Wald using the Sequential Probability Ratio Test (SPRT) for comparing two binomial populations. The test is an open, non-truncated procudure. Several tables are presented for the average sample numbers needed under the sequential plan and fixed sample plan for selected Type 1 and 2 errors, alternative relative risks of interest and exposure probabilities in case and controls. A hypothetical example is presented to illustrate the use of the method and discussion is given as to the possible advantages and disadvantages of the sequential approach to case-control studies. PMID:727211

O'Neill, R T; Anello, C

1978-11-01

259

The ten thousand Kims  

International Nuclear Information System (INIS)

In Korean culture, the names of family members are recorded in special family books. This makes it possible to follow the distribution of Korean family names far back in history. It is shown here that these name distributions are well described by a simple null model, the random group formation (RGF) model. This model makes it possible to predict how the name distributions change and these predictions are shown to be borne out. In particular, the RGF model predicts that for married women entering a collection of family books in a certain year, the occurrence of the most common family name 'Kim' should be directly proportional to the total number of married women with the same proportionality constant for all the years. This prediction is also borne out to a high degree. We speculate that it reflects some inherent social stability in the Korean culture. In addition, we obtain an estimate of the total population of the Korean culture down to the year 500 AD, based on the RGF model, and find about ten thousand Kims.

260

The ten thousand Kims  

Science.gov (United States)

In Korean culture, the names of family members are recorded in special family books. This makes it possible to follow the distribution of Korean family names far back in history. It is shown here that these name distributions are well described by a simple null model, the random group formation (RGF) model. This model makes it possible to predict how the name distributions change and these predictions are shown to be borne out. In particular, the RGF model predicts that for married women entering a collection of family books in a certain year, the occurrence of the most common family name 'Kim' should be directly proportional to the total number of married women with the same proportionality constant for all the years. This prediction is also borne out to a high degree. We speculate that it reflects some inherent social stability in the Korean culture. In addition, we obtain an estimate of the total population of the Korean culture down to the year 500 AD, based on the RGF model, and find about ten thousand Kims.

Baek, Seung Ki; Minnhagen, Petter; Kim, Beom Jun

2011-07-01

261

Ten steps or climbing a mountain: A study of Australian health professionals' perceptions of implementing the baby friendly health initiative to protect, promote and support breastfeeding  

Directory of Open Access Journals (Sweden)

Full Text Available Abstract Background The Baby Friendly Hospital (Health Initiative (BFHI is a global initiative aimed at protecting, promoting and supporting breastfeeding and is based on the ten steps to successful breastfeeding. Worldwide, over 20,000 health facilities have attained BFHI accreditation but only 77 Australian hospitals (approximately 23% have received accreditation. Few studies have investigated the factors that facilitate or hinder implementation of BFHI but it is acknowledged this is a major undertaking requiring strategic planning and change management throughout an institution. This paper examines the perceptions of BFHI held by midwives and nurses working in one Area Health Service in NSW, Australia. Methods The study used an interpretive, qualitative approach. A total of 132 health professionals, working across four maternity units, two neonatal intensive care units and related community services, participated in 10 focus groups. Data were analysed using thematic analysis. Results Three main themes were identified: 'Belief and Commitment'; 'Interpreting BFHI' and 'Climbing a Mountain'. Participants considered the BFHI implementation a high priority; an essential set of practices that would have positive benefits for babies and mothers both locally and globally as well as for health professionals. It was considered achievable but would take commitment and hard work to overcome the numerous challenges including a number of organisational constraints. There were, however, differing interpretations of what was required to attain BFHI accreditation with the potential that misinterpretation could hinder implementation. A model described by Greenhalgh and colleagues on adoption of innovation is drawn on to interpret the findings. Conclusion Despite strong support for BFHI, the principles of this global strategy are interpreted differently by health professionals and further education and accurate information is required. It may be that the current processes used to disseminate and implement BFHI need to be reviewed. The findings suggest that there is a contradiction between the broad philosophical stance and best practice approach of this global strategy and the tendency for health professionals to focus on the ten steps as a set of tasks or a checklist to be accomplished. The perceived procedural approach to implementation may be contributing to lower rates of breastfeeding continuation.

Sheehan Athena

2011-08-01

262

Case Study Report about Gender Impact Assessment  

DEFF Research Database (Denmark)

The aim of this national case study report is to take a closer look at the use of Gender Impact Assessments in Denmark in order to describe the Danish implementation of this specific Gender Mainstreaming method. By way of analyzing two selected cases (two law proposals put forward by The Danish Ministry of Employment and the Danish Ministry of Transport, respectively) the aim is to assess the transformative potential of GIA as it is performed in Denmark.

Faber, Stine Thidemann; Agustin, Lise Rolandsen

2013-01-01

263

Measuring marketing performance - A case study  

OpenAIRE

PURPOSE OF THE STUDY The purpose of this study is to develop a marketing dashboard for a Finnish company that operates in the financial industry. The identification of suitable metrics for assessing marketing performance is considered central. This study proposes a new construct (a dashboard) that aims to providing management relevant information on marketing performance from decision-making perspective. METHODOLOGY AND DATA The methodology is a constructive case study. In the...

Laakso, Vesa-pekka

2011-01-01

264

Hemangioma racemoso de retina (síndrome de Wyburn-Mason): acompanhamento de um paciente por dez anos: relato de caso / Retinal racemose hemangioma (Wyburn-Mason syndrome): a patient ten years follow-up: case report  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: Portuguese Abstract in portuguese Relatar o caso de um paciente que apresentou hemangioma racemoso de retina (síndrome de Wyburn-Mason) e seu acompanhamento por 10 anos. Dez anos após o diagnóstico da doença o exame oftalmológico não sofreu alterações, assim como o campo visual e a retinografia. O prognóstico a longo prazo é controv [...] erso. Alguns autores relatam estabilidade das lesões oculares, como no caso descrito, enquanto outros referem perda progressiva da visão. Abstract in english To describe the case of a patient who presents retinal racemose hemangioma (Wyburn-Mason syndrome) and his 10 years follow-up. Ten years after the disease diagnosis, the ophthalmologic exam had no changes, as well as the campimetry and the retinography. The long term prognosis is controversial. Some [...] authors report ocular lesions stability and others report progressive visual loss.

RL, Leitão Guerra; CL, Leitão Guerra; M, Guerra; AS, Guerra Neto; AA, Leitão Guerra.

2009-08-01

265

Journalists and Olympic athletes:a Norwegian case study of ambivalent relationship  

OpenAIRE

This case study explores the relationship between media and sport. More specifically, it examines the association (i.e., the contact and communication) between Norwegian journalists and athletes during the 2010 Olympic Winter Games in Vancouver, Canada. Ten athletes and three journalists were interviewed about their relationship. To regulate and improve the journalist–athlete relationship during special events like the Olympics, media rules have been formulated. In regard to the on-site int...

Kristiansen, Elsa; Hanstad, Dag Vidar

2012-01-01

266

High school learners' mental construction during solving optimisation problems in Calculus: a South African case study  

OpenAIRE

This qualitative case study in a rural school in Umgungundlovu District in KwaZulu-Natal, South Africa, explored Grade 12 learners' mental constructions of mathematical knowledge during engagement with optimisation problems. Ten Grade 12 learners who do pure Mathematics participated, and data were collected through structured activity sheets and semi-structured interviews. Structured activity sheets with three tasks were given to learners; these tasks were done in groups, and the group leader...

Deonarain Brijlall; Zanele Ndlovu

2013-01-01

267

Mining Product Data Models: A Case Study  

Directory of Open Access Journals (Sweden)

Full Text Available This paper presents two case studies used to prove the validity of some data-flow mining algorithms. We proposed the data-flow mining algorithms because most part of mining algorithms focuses on the control-flow perspective. First case study uses event logs generated by an ERP system (Navision after we set several trackers on the data elements needed in the process analyzed; while the second case study uses the event logs generated by YAWL system. We offered a general solution of data-flow model extraction from different data sources. In order to apply the data-flow mining algorithms the event logs must comply a certain format (using InputOutput extension. But to respect this format, a set of conversion tools is needed. We depicted the conversion tools used and how we got the data-flow models. Moreover, the data-flow model is compared to the control-flow model.

Cristina-Claudia DOLEAN

2014-01-01

268

Implementing Product Platforms: A Case Study  

DEFF Research Database (Denmark)

The paper describes a case study dealing with the process of creating and implementing a product platform. The paper espessially deals with the fact that to obtain the benefits of platforms a permanent change in behaviour in product development must be ensured. This change in behaviour requires acceptance and approval from the organisation in general and the commitment from management to enforce agreed-upon decisions. The case study itself was performed in the Danish company LEGO Group. The case study had two objectives: To create a technical architecture and align this architecture with the manufacturing setup; And to create procedures for using and maintaining the system and getting the commitment and approval of the platform.

Nielsen, Ole Fiil; Mortensen, Niels Henrik

2006-01-01

269

The importance of adequate stem anteversion for rotational stability in cemented total hip replacement: a radiostereometric study with ten-year follow-up.  

Science.gov (United States)

Progressive retroversion of a cemented stem is predictive of early loosening and failure. We assessed the relationship between direct post-operative stem anteversion, measured with CT, and the resulting rotational stability, measured with repeated radiostereometric analysis over ten years. The study comprised 60 cemented total hip replacements using one of two types of matt collared stem with a rounded cross-section. The patients were divided into three groups depending on their measured post-operative anteversion ( 25°). There was a strong correlation between direct post-operative anteversion and later posterior rotation. At one year the 25° group one stem (5%) was revised and another loose (5%) out of 20 stems. This poor outcome is partly dependent on the design of this prosthesis, but the results strongly suggest that the initial rotational position of cemented stems during surgery affects the subsequent progressive retroversion, subsidence and eventual loosening. The degree of retroversion may be sensitive to prosthetic design and stem size, but hip prosthetic stems. PMID:23307669

Kiernan, S; Hermann, K L; Wagner, P; Ryd, L; Flivik, G

2013-01-01

270

Pathology Case Study: Sore Throat and Leukocytosis  

Science.gov (United States)

The Department of Pathology at the University of Pittsburgh Medical Center has compiled a wide range of pathology case studies to aid students and instructors in the medical/health science field. A 68 year old female with a sore throat is the focus of this particular case. The patient's history reveals an increased white blood cell count, anemia and thrombocytopenia. A list of the her current medication, as well as the microscopic description, cell images, and flow cytometry are also included in the case file. This is an excellent resource for providing students experience with patient history, lab results and diagnostics. Students are encouraged to examine each aspect of the case and test their diagnostic skills against the official findings in the "Final Diagnosis" section.

Holst, Valerie

271

Analysis of the Case Studies Video Recordings  

Directory of Open Access Journals (Sweden)

Full Text Available Case study method of didactic situations is a modern procedure of effective development of professional abilities in future teachers. I have been using the method for many years in future teachers training in the field of preparation of subject methodologies. A case study does not develop only the subject and didactic competences of future teachers. The self-evaluation and self-reflection processes in students also play an important role. For this purpose the third – analytical – phase of the study is carried out. Two basic methods are used for a complex analysis – macro-analytic and micro- analytic. The macro-analytic method is used to examine the course and the results of the case study: suitability of the used methods, forms and tools; using communicative tools, creating proper climate etc. The micro-analytic method is used to find out changes in students personalities and causes of the outer demonstrations of the case study. One of the examined phenomena is e.g. flexibility and creativity in adjusting the pre-concept to the course of the realization phase of the study.

PaedDr. Petr Mach

2012-09-01

272

Michael's Story A Case Study in Autism  

Science.gov (United States)

This interdisciplinary case study is designed to interest general biology students as well as students of psychology and health studies. The study introduces us to the Greens, a family with a recently diagnosed autistic child. Students engage in a variety of activities to learn about the possible causative explanation for autism, its diagnosis, and treatment. A final activity is an optional writing exercise exploring the idea that there is intrinsic value in all persons' experiences, including those who are "different."

Kristen N. Hausmann

2011-01-01

273

Corporate Social Responsibility : A Case Study  

OpenAIRE

The importance of taking responsibility for the common environmental and social welfare has become of essence in the business world of the 21st century. This thesis provides the reader with knowledge on corporate social responsibility (CSR) and shows the reader a comparative study on how CSR is reported on in three case study companies chosen for this thesis. This thesis is a descriptive study that uses the research method of content analysis to determine the commonalities and differences...

Bjo?rkqvist, Kira

2012-01-01

274

Case study in time series analysis  

CERN Document Server

This book is a monograph on case studies using time series analysis, which includes the main research works applied to practical projects by the author in the past 15 years. The works cover different problems in broad fields, such as: engineering, labour protection, astronomy, physiology, endocrinology, oil development, etc. The first part of this book introduces some basic knowledge of time series analysis which is necessary for the reader to understand the methods and the theory used in the procedure for solving problems. The second part is the main part of this book - case studies in differ

Zhongjie, Xie

1993-01-01

275

Repurposing legacy data innovative case studies  

CERN Document Server

Repurposing Legacy Data: Innovative Case Studies takes a look at how data scientists have re-purposed legacy data, whether their own, or legacy data that has been donated to the public domain. Most of the data stored worldwide is legacy data-data created some time in the past, for a particular purpose, and left in obsolete formats. As with keepsakes in an attic, we retain this information thinking it may have value in the future, though we have no current use for it. The case studies in this book, from such diverse fields as cosmology, quantum physics, high-energy physics, microbiology,

Berman, Jules J

2015-01-01

276

RADPHARM case presentation - CSF shunt function case study  

International Nuclear Information System (INIS)

A CSF shunt study is a non-invasive investigation that provides unique physiological information about the patency of a ventriculoperitoneal (VP) shunt. This study can be used to compliment information provided by other imaging modalities such as CT and MRI. A 21-year-old female who had a VP shunt inserted at the age of 4 months presented with persistent headache, vomiting and swelling over the right side of her face and neck. A CT scan of the brain was performed and showed no change in ventricular size to suggest the presence of hydrocephalus. However, symptoms persisted and the CT brain scan was repeated. Neck and lateral skull x-rays were also performed. The CT brain scan showed no change when compared to the previous results and the plain x-rays were not helpful as the VP shunt was radiolucent. A CSF shunt study was then performed. This demonstrated tracer accumulation in the right side of the neck adjacent to the shunt indicating a VP shunt fracture. SPECT/CT imaging then confirmed the site of shunt fracture in the mid right neck. It is clear from this case that Nuclear Medicine CSF shunt function studies provide specific physiological information about CSF shunts. For this patient the results of this study confirmed the suspected diagnosis of a shunt fracture, directing an uncomplicated surgical repair with the resolution of the patient's symptoms

277

Department of Pathology-Case Studies  

Science.gov (United States)

Students in the health sciences learn from case studies, patient histories, and a variety of other means. In recent years, a number of medical schools in the United States have contributed to medical education by placing slide collections, pathology reports, and other related materials online. The University of Pittsburgh's School of Medicine is part of this delightful trend, and they have placed a number of case studies culled from their Department of Pathology's files here on this site. Visitors can look over these files by patient history or diagnosis, and all told, there are well over 500 cases offered here. Visitors can read the pathology reports, view selections of related medical images and scans, and also read the final diagnosis report.

278

A Single Case Study of a Three Year Coordinated School Health Program at a Rural North Mississippi Elementary School  

Science.gov (United States)

The single case study presents the story of the implementation of a three year Coordinated School Health Program (CSHP) at a rural North Mississippi school. The school was recognized by the Mississippi Department of Education, Office of Healthy Schools, as one of ten selected model Mississippi healthy schools. An awarded grant of one hundred…

Howell, Sandra Lena

2010-01-01

279

A Case Study on Collective Cognition and Operation in Team-Based Computer Game Design by Middle-School Children  

Science.gov (United States)

This case study examined team-based computer-game design efforts by children with diverse abilities to explore the nature of their collective design actions and cognitive processes. Ten teams of middle-school children, with a high percentage of minority students, participated in a 6-weeks, computer-assisted math-game-design program. Essential…

Ke, Fengfeng; Im, Tami

2014-01-01

280

Does present use of cardiovascular medication reflect elevated cardiovascular risk scores estimated ten years ago? A population based longitudinal observational study  

Directory of Open Access Journals (Sweden)

Full Text Available Abstract Background It is desirable that those at highest risk of cardiovascular disease should have priority for preventive measures, eg. treatment with prescription drugs to modify their risk. We wanted to investigate to what extent present use of cardiovascular medication (CVM correlates with cardiovascular risk estimated by three different risk scores (Framingham, SCORE and NORRISK ten years ago. Methods Prospective logitudinal observational study of 20 252 participants in The Hordaland Health Study born 1950-57, not using CVM in 1997-99. Prescription data obtained from The Norwegian Prescription Database in 2008. Results 26% of men and 22% of women aged 51-58 years had started to use some CVM during the previous decade. As a group, persons using CVM scored significantly higher on the risk algorithms Framingham, SCORE and NORRISK compared to those not treated. 16-20% of men and 20-22% of women with risk scores below the high-risk thresholds for the three risk scores were treated with CVM, while 60-65% of men and 25-45% of women with scores above the high-risk thresholds received no treatment. Among women using CVM, only 2.2% (NORRISK, 4.4% (SCORE and 14.5% (Framingham had risk scores above the high-risk values. Low education, poor self-reported general health, muscular pains, mental distress (in females only and a family history of premature cardiovascular disease correlated with use of CVM. Elevated blood pressure was the single factor most strongly predictive of CVM treatment. Conclusion Prescription of CVM to middle-aged individuals by large seems to occur independently of estimated total cardiovascular risk, and this applies especially to females.

Straand Jørund

2011-03-01

281

Why is seed production so variable among individuals? A ten-year study with oaks reveals the importance of soil environment.  

Science.gov (United States)

Mast-seeding species exhibit not only a large inter-annual variability in seed production but also considerable variability among individuals within the same year. However, very little is known about the causes and consequences for population dynamics of this potentially large between-individual variability. Here, we quantified seed production over ten consecutive years in two Mediterranean oak species - the deciduous Quercus canariensis and the evergreen Q. suber - that coexist in forests of southern Spain. First, we calibrated likelihood models to identify which abiotic and biotic variables best explain the magnitude (hereafter seed productivity) and temporal variation of seed production at the individual level (hereafter CVi), and infer whether reproductive effort results from the available soil resources for the plant or is primarily determined by selectively favoured strategies. Second, we explored the contribution of between-individual variability in seed production as a potential mechanism of satiation for predispersal seed predators. We found that Q. canariensis trees inhabiting moister and more fertile soils were more productive than those growing in more resource-limited sites. Regarding temporal variation, individuals of the two studied oak species inhabiting these resource-rich environments also exhibited larger values of CVi. Interestingly, we detected a satiating effect on granivorous insects at the tree level in Q. suber, which was evident in those years where between-individual variability in acorn production was higher. These findings suggest that individual seed production (both in terms of seed productivity and inter-annual variability) is strongly dependent on soil resource heterogeneity (at least for one of the two studied oak species) with potential repercussions for recruitment and population dynamics. However, other external factors (such as soil heterogeneity in pathogen abundance) or certain inherent characteristics of the tree might be also involved in this process. PMID:25532130

Pérez-Ramos, Ignacio M; Aponte, Cristina; García, Luis V; Padilla-Díaz, Carmen M; Marañón, Teodoro

2014-01-01

282

Performance-Related Pay: A Case Study.  

Science.gov (United States)

Discusses performance-related pay and why the system was introduced, how it was negotiated, and how it has operated. The case study illustrated is in a British financial services company where the system was negotiated in 1986 and began in 1987. (JOW)

Swabe, A. I. R.

1989-01-01

283

Marietta Celebration of Unity Case Study.  

Science.gov (United States)

This case study concerns the forming of a Marietta, Ohio unity committee, entitled Citizens for Social and Racial Justice, in response to the local Ku Klux Klan's (KKK) request for a parade permit in order to demonstrate against blacks in this city. Marietta, the county seat of Washington County, Ohio, has a population composed of both white and…

Philbin, Meg; Phillips, Rebecca

284

Lifelong Learning in SMEs: A Case Study.  

Science.gov (United States)

Learning centers using information-communications technologies were established in three British industrial estates. A case study of one organization shows the center contributed to lifelong learning and enhanced information technology training and employee confidence. Transfer of training and productivity improvements were not as clear. (Contains…

Holden, Rick; Smith, Vikki; Devins, Dave

2002-01-01

285

Learning Machine Learning: A Case Study  

Science.gov (United States)

This correspondence reports on a case study conducted in the Master's-level Machine Learning (ML) course at Blekinge Institute of Technology, Sweden. The students participated in a self-assessment test and a diagnostic test of prerequisite subjects, and their results on these tests are correlated with their achievement of the course's learning…

Lavesson, N.

2010-01-01

286

The Case Study: Avogadro Goes to Court  

Science.gov (United States)

The case study that follows was inspired by a novel assignment that Pace University Professor Carroll Zahn gave to his introductory computer class. The result of this assignment was certainly far different than anything that either the professor or his cl

Frank J. Dinan

1999-11-01

287

Successful Fundraising: Case Studies of Academic Libraries.  

Science.gov (United States)

The primary purpose of this book it to assist library directors and those who want to become fundraisers for libraries to learn more about fundraising and find answers to their questions. The 12 case studies presented in this book address issues of building a major gift program; developing library capital campaigns; competing for National…

Butler, Meredith A., Ed.

288

The Case Study: The Way of Flesch  

Science.gov (United States)

The 50-year-old book, The Art of Readable Writing , by Linguist Rudolf Flesch, is chock-full of great advice about writing. Here the author shares some of its wisdom because it is useful for any kind of writing, including case studies. Consider th

Clyde Freeman Herreid

2002-02-01

289

Climate wise case study compendium: Report 1  

Energy Technology Data Exchange (ETDEWEB)

This case study compendium is one of several Climate Wise tools available to help interested companies identify cost-effective options. Climate Wise, a private-public partnership program, is a key Federal initiative to return greenhouse gas emissions to 1990 levels by 2000.

NONE

1997-02-01

290

Case Studies of the AIA Movement.  

Science.gov (United States)

At least 17 university faculty members have been the direct objects of unfavorable public commentary by the conservative organization Accuracy in Academia, Inc (AIA). Two case studies that have received much attention involve two political science professors: Dr. Terry Anderson of Texas A & M University, and Dr. Mark Reader of Arizona State…

Ewbank, H. L.

291

Eastern's Employee Communication Crisis: A Case Study.  

Science.gov (United States)

Explores communication behaviors and reactions of employees during crisis periods, using a qualitative case study of Eastern Airlines pilots. Finds that useful theories for crisis communication can be developed only after sufficient inquiry into the communication needs and behaviors of message receivers. (MS)

Saunders, Martha

1988-01-01

292

New Lives: Some Case Studies in Minamata.  

Science.gov (United States)

Three case studies of young Japanese adults who fell ill with Minamata disease (a form of methyl-mercury poisoning) are presented and the adjustment of the individuals to the disease is analyzed in terms of a model of creativity. The model distinguishes three types of creativity: identificational (in which one identifies with old ideas and…

Tsurumi, Kazuko

293

Three Case Studies in Green Cleaning  

Science.gov (United States)

This article presents case studies from three districts implementing green cleaning. In 2008, Missouri passed legislation requiring state education officials to convene a committee of stakeholders with the purpose of developing green cleaning guidelines and specifications for schools. The guide, published by the Department of Elementary and…

State Education Standard, 2012

2012-01-01

294

Avio case study: the MRO process  

Science.gov (United States)

This chapter presents the case study of the Avio Brindisi plant where a profound process of change has been in progress for a number of years. We use the TEKNE Project methodology of change to analyze the different aspects of the case, highlighting the firm's strategic, organizational and technological characteristics and the environment it operates in. In particular, we envisage a change in the plant's business model in response to the expansion of its client segments and a potential new approach to MRO operations based on advanced fleet management practices that would radically change the firm's organization and value network with respect to its MRO service offering, thereby yielding extensive global market opportunities.

Corallo, Angelo; Dimartino, Angelo; Errico, Fabrizio; Giangreco, Enza

295

Are infundibular dilatations at risk of further transformation? Ten-year progression of a prior documented infundibulum into a saccular aneurysm and rupture: Case report and a review of the literature.  

Science.gov (United States)

Infundibular dilatations (IFDs) are conical, triangular, or funnel-shaped enlargements at the origin of cerebral arteries, and they are primarily located (7-25%) on the posterior communicating artery (PComA). Progression over time into a saccular aneurysm with a risk of rupture of a previously demonstrated IFD has rarely been reported. We report the case of a 60-year-old female who presented 10 years earlier with a subarachnoid hemorrhage caused by a left internal carotid artery aneurysm rupture. At that time, the carotid angiography showed the left internal carotid artery aneurysm and a right posterior communicating artery infundibular dilatation. Neck clipping for the left internal carotid artery aneurysm was performed and the patient was discharged with no neurological deficit. Ten years later, the patient suffered a second fatal subarachnoid hemorrhage; carotid angiography revealed a right posterior communicating artery aneurysm developed from the previously documented infundibular dilatation with a de novo right anterior choroidal artery aneurysm. This case is another proof of the small but growing number of examples of infundibular transformation over time, as well as their risk of progression into saccular aneurysms and subsequent rupture. PMID:25239381

Karekezi, C; Boutarbouch, M; Djoubairou, B O; Melhaoui, A; Arkha, Y; El Ouahabi, A

2014-12-01

296

Ten Challenges for Decision Neuroscience  

Directory of Open Access Journals (Sweden)

Full Text Available Decision neuroscience research, as currently practiced, employs the methods of neuroscience to investigate concepts drawn from the social sciences. A typical study selects one or more variables from psychological or economic models, manipulates or measures choices within a simplified choice task, and then identifies neural correlates. Using this “neuroeconomic” approach, researchers have described brain systems whose functioning shapes key economic variables, most notably aspects of subjective value. Yet, the standard approach has fundamental limitations. Important aspects of the mechanisms of decision making – from the sources of variability in decision making to the very computations supported by decision-related regions – remain incompletely understood. Here, I outline ten outstanding challenges for future research in decision neuroscience. While some will be readily addressed using current methods, others will require new conceptual frameworks. Accordingly, a new strain of decision neuroscience will marry methods from economics and cognitive science to concepts from neurobiology and cognitive neuroscience.

ScottAHuettel

2010-09-01

297

L’utilisation du TENS en physiothérapie : la situation particulière des soins palliatifs oncologiques  

Directory of Open Access Journals (Sweden)

Full Text Available Trans-cutaneous electrical nerve stimulation (TENS is a treatment against pain that uses the application of an electric current. Some studies suggest that TENS would reduce the pain associated with certain types of cancer and this treatment is regularly used in therapy in contexts of interdisciplinary practice specializing in palliative oncology. However, the use of TENS in cancer cases is a matter of controversy, and its application is contraindicated by Canadian standards governing the practice of physiotherapy. This article aims to present, through a case study, some principles to guide decision making regarding the choice of this therapy in cases of cancer. Scientific evidence, standards of practice and ethical principles that should guide the choice of therapy are discussed. The use of TENS therapy in palliative care is a paradigmatic example of a common situation: the weighing by health care professionals of the benefits and potential costs, such as potential adverse effects of treatment. In the case of TENS, the benefits are associated with the reduction of pain, while a potential adverse effect would increase tumour proliferation. This difficult calculation has implications for the various stakeholders such as patients and health professionals.

Laliberté, Maude

2012-11-01

298

Dez anos de experiência com cirurgia micrográfica pelo método de Munique: relato de 93 casos operados A ten-year experience with the Munich method of micrographic surgery: a report of 93 operated cases  

Directory of Open Access Journals (Sweden)

Full Text Available FUNDAMENTOS: A cirurgia de Mohs é um dos métodos mais eficazes de tratamento dos carcinomas basocelulares. A expansão de seus conceitos possibilitou o surgimento de outros métodos de checagem de margens cirúrgicas igualmente eficazes. O método de Munique é um exemplo disso. OBJETIVOS: Avaliar a eficácia da cirurgia micrográfica pelo método de Munique em um estudo de coorte com 10 anos de duração. MÉTODOS: 93 pacientes com 96 tumores cutâneos foram tratados com cirurgia micrográfica pelo método de Munique, participando de um protocolo de acompanhamento, no período de maio de 1994 a julho de 2004. RESULTADOS: 61,4% dos tumores eram recidivados; 42,3% eram recidivados mais de uma vez; 53% eram do tipo esclerodermiforme. A média do maior diâmetro dos tumores foi de 1,58cm e do menor 1,10cm. Em 95% dos casos se obteve a extirpação total do tumor, com até três estágios. A localização mais comum foi a nasal (46,3%, seguida da periocular (18,9% e da frontal (11,5%. Perdeu-se o contato apenas com dois pacientes. Dos 96 tumores operados, apenas 11 têm tempo de seguimento inferior a dois anos. 56 pacientes foram seguidos por pelo menos cinco anos, e 45 (47,3%, por mais de seis anos. Apenas um caso de recidiva foi verificado, tendo ocorrido no sexto ano de observação. CONCLUSÃO: O método de Munique é um método eficiente de cirurgia micrográfica, tanto quanto o método de Mohs. Este trabalho fornece mais um indício de que o conceito de cirurgia micrográfica deve ser ampliado para cirurgia microscopicamente controlada, e não ficar ligado estritamente ao termo cirurgia de Mohs.BACKGROUND: Mohs surgery is one of the most effective treatments for basal cell carcinomas. The expansion of its concepts enabled developing other equally effective methods to check surgical margins, and the Munich method is an example. OBJECTIVES: To evaluate the effectiveness of the Munich method of micrographic surgery in a ten-year cohort study. METHODS: Ninety-three patients with a total of 96 skin tumors were treated with the Munich method of micrographic surgery, taking part in a follow-up protocol, from May 1994 through July 2004. RESULTS: Of all tumors, 61.4% were recurrent, 42.3% were recurrent more than once, and 53% were of the sclerodermiform type. The mean larger diameter was 1.58cm, and the mean smaller diameter was 1.10cm. In 95% of the cases, total extirpation of the tumor was obtained in three stages. The most common site was nasal (46.3%, followed by periocular (18.9% and frontal (11.5%. Two patients were lost in follow-up. Of the 96 operated tumors, only 11 had a follow-up time shorter than 2 years. Fifty-six patients were followed for at least 5 years, and 45 (47.3% for over 6 years. A single relapse was observed, which took place in the sixth year of observation. CONCLUSION: The Munich method is an efficient method of micrographic surgery, as good as the Mohs method. This study provides further evidence that the concept of micrographic surgery must be broadened to surgical excision with microscopic margin control, rather than linking it exclusively to the term "Mohs micrographic surgery".

Luis Fernando Figueiredo Kopke

2005-12-01

299

Dez anos de experiência com cirurgia micrográfica pelo método de Munique: relato de 93 casos operados / A ten-year experience with the Munich method of micrographic surgery: a report of 93 operated cases  

Scientific Electronic Library Online (English)

Full Text Available FUNDAMENTOS: A cirurgia de Mohs é um dos métodos mais eficazes de tratamento dos carcinomas basocelulares. A expansão de seus conceitos possibilitou o surgimento de outros métodos de checagem de margens cirúrgicas igualmente eficazes. O método de Munique é um exemplo disso. OBJETIVOS: Avaliar a efic [...] ácia da cirurgia micrográfica pelo método de Munique em um estudo de coorte com 10 anos de duração. MÉTODOS: 93 pacientes com 96 tumores cutâneos foram tratados com cirurgia micrográfica pelo método de Munique, participando de um protocolo de acompanhamento, no período de maio de 1994 a julho de 2004. RESULTADOS: 61,4% dos tumores eram recidivados; 42,3% eram recidivados mais de uma vez; 53% eram do tipo esclerodermiforme. A média do maior diâmetro dos tumores foi de 1,58cm e do menor 1,10cm. Em 95% dos casos se obteve a extirpação total do tumor, com até três estágios. A localização mais comum foi a nasal (46,3%), seguida da periocular (18,9%) e da frontal (11,5%). Perdeu-se o contato apenas com dois pacientes. Dos 96 tumores operados, apenas 11 têm tempo de seguimento inferior a dois anos. 56 pacientes foram seguidos por pelo menos cinco anos, e 45 (47,3%), por mais de seis anos. Apenas um caso de recidiva foi verificado, tendo ocorrido no sexto ano de observação. CONCLUSÃO: O método de Munique é um método eficiente de cirurgia micrográfica, tanto quanto o método de Mohs. Este trabalho fornece mais um indício de que o conceito de cirurgia micrográfica deve ser ampliado para cirurgia microscopicamente controlada, e não ficar ligado estritamente ao termo cirurgia de Mohs. Abstract in english BACKGROUND: Mohs surgery is one of the most effective treatments for basal cell carcinomas. The expansion of its concepts enabled developing other equally effective methods to check surgical margins, and the Munich method is an example. OBJECTIVES: To evaluate the effectiveness of the Munich method [...] of micrographic surgery in a ten-year cohort study. METHODS: Ninety-three patients with a total of 96 skin tumors were treated with the Munich method of micrographic surgery, taking part in a follow-up protocol, from May 1994 through July 2004. RESULTS: Of all tumors, 61.4% were recurrent, 42.3% were recurrent more than once, and 53% were of the sclerodermiform type. The mean larger diameter was 1.58cm, and the mean smaller diameter was 1.10cm. In 95% of the cases, total extirpation of the tumor was obtained in three stages. The most common site was nasal (46.3%), followed by periocular (18.9%) and frontal (11.5%). Two patients were lost in follow-up. Of the 96 operated tumors, only 11 had a follow-up time shorter than 2 years. Fifty-six patients were followed for at least 5 years, and 45 (47.3%) for over 6 years. A single relapse was observed, which took place in the sixth year of observation. CONCLUSION: The Munich method is an efficient method of micrographic surgery, as good as the Mohs method. This study provides further evidence that the concept of micrographic surgery must be broadened to surgical excision with microscopic margin control, rather than linking it exclusively to the term "Mohs micrographic surgery".

Luis Fernando Figueiredo, Kopke; Patricia Salomé, Gouvêa; Jose Caldeira Ferreira, Bastos.

2005-12-01

300

An Industrial Case Study for Scrum Adoption  

Directory of Open Access Journals (Sweden)

Full Text Available Agile software development methods and techniqueshave been demonstrated to improve employee morale, enhanceend-product quality, and achieve customer satisfaction. Agileadoption always comes with special challenges and thus fundamental organizational changes are necessary for successful outcome. In this paper we present an in-depth case study for adopting Scrum in a multi-team and multi-project situation to a government entity in the United Arab Emirates (U.A.E. While there are many successful stories for adopting Scrum in large and small organizations, there is little known about adoption stories in a multi-project/multi-team environments. In this paper we present a case study for an unsuccessful adoption of Scrum in a government entity in the U.A.E. The government entity under study have used the traditional waterfall approach for many years and decided to move to Agile software development method.This study highlights the challenges faced during the adoptionof Scrum method with recommendations to address them. Eachorganization has its unique properties and one case study is not enough to draw conclusions for the U.A.E environment. However, the results obtained from this paper help software engineers to better understand the development environment and context factors for software projects in the U.A.E and many lessons may be learned for future Agile adoption.

Hassan Hajjdiab

2012-01-01

301

Chloride Channel Myotonia: Study of Five Cases  

Directory of Open Access Journals (Sweden)

Full Text Available Chloride channel Myotonia is a form of channelopathy, and Myotonia is its manifestation. Myotonia may be defined as delayed relaxation of skeletal muscle after its contraction. Decreased chloride conductance across the transverse tubular system, renders the muscle membrane hyper-excitable and leads to repetitive firing, creating Myotonia. Myotonia congenital is another name for chloride channel Myotonia. Myotonia congenital appears in autosomal dominant type called Thomson disease, autosomal recessive type called Becker disease, and a type with sporadic occurrence. Symptoms appear in the first or second decade of life. Repeated muscle contraction, the so called warm up, result in resolution of the Myotonia stiffness. Muscle stiffness and hypertrophy is another finding at physical examination. In this study we report on 5 patients, which had clinical and electrical signs of Myotonia. Muscle hypertrophy and warm up phenomena were present in all cases. CPK measurement of all cases were normal. 2 patients underwent muscle biopsy that showed only atrophy and increased central nuclei. In three cases autosomal recessive inheritance (Becker, in one case autosomal dominant inheritance (Thomsen and in one case sporadic occurrence was suggested. With respect to successful results of carbamazepine therapy in 4 patients, and being excellent in one of them, we suggest carbamazepine for the first choice of Myotonia treatment.

M Ghofrani

2002-09-01

302

Vitiligo: A study of 120 cases  

Directory of Open Access Journals (Sweden)

Full Text Available Vitiligo is a common pignientary disorder and of major social and cosmetic concern in India. Purpose of the study was to find out age at onset and sex incidence in vitiligo, role of hereditary factors and associations with other diseases. 120 self reporting vitiligo patients attending out patient department of a service hospital were selected for the study and this data was analysed. In the present series out of 120 cases 62 (51.6% were males and 58(48.35%were females. There was practically no difference in sex incidence. The lowest age of onset was two years and the oldest was 65 years. In the majority of patients,52(43.2%, disease started before twenty years of age.8 (6.6% cases gave definite family history of vitiligo. Exposed areas of the body were commonly affected in majority (66.6% of cases. The legs were commonest site of involvement in 60(50% cases. Circunicript type of vitiligo (46.6% was heading the list. Majority of patients (56.6% had multiple lesions. Diabetes mellitus was found in 2 (2.6% patients. Cause of vitiligo is still idiopathic. Hereditary factors hardly play any role in manifestation of vitiligo

Kar P

2001-11-01

303

Case studies of nurseries in Malawi  

DEFF Research Database (Denmark)

This study of 42 case studies of nurseries was made as part of a major sample survey of 360 nurseries in 6 districts in Malawi. The purpose of the study was to let the small nurseries in the country explain in their own words how they source seed, how and for whom they produce seedlings, and to explain about their problems and opportunities in the nursery business. The assessment was made within the framework of Improved Seed Supply for Agroforestry in African Countries (ISSAAC), a Danida supported programme implemented in cooperation between Forest & Landscape Denmark and World Agroforestry Centre (ICRAF).

Namoto, M.; Likoswe, M.G.

2007-01-01

304

Frequency and antimicrobial resistance patterns of bacteria implicated in community urinary tract infections: a ten-year surveillance study (2000–2009  

Directory of Open Access Journals (Sweden)

Full Text Available Abstract Background Urinary tract infection (UTI is one of the most common infectious diseases at the community level. In order to assess the adequacy of the empirical therapy, the prevalence and the resistance pattern of the main bacteria responsible for UTI in the community (in Aveiro, Portugal was evaluated throughout a ten-year period. Methods In this retrospective study, all urine samples from patients of the District of Aveiro, in ambulatory regime, collected at the Clinical Analysis Laboratory Avelab during the period 2000–2009 were analysed. Samples with more than 105 CFU/mL bacteria were considered positive and, for these samples, the bacteria were identified and the profile of antibiotic susceptibility was characterized. Results From the 155597 samples analysed, 18797 (12.1% were positive for bacterial infection. UTI was more frequent in women (78.5% and its incidence varied with age, affecting more the elderly patients (38.6%. Although E. coli was, as usual, the most common pathogen implicated in UTI, it were observed differences related to the other bacteria more implicated in UTI relatively to previous studies. The bacteria implicated in the UTI varied with the sex of the patient, being P. aeruginosa a more important cause of infection in men than in women. The incidence of the main bacteria changed over the study period (P. aeruginosa, Klebsiella spp and Providencia spp increased and Enterobacter spp decreased. Although E. coli was responsible for more than an half of UTI, its resistance to antibiotics was low when compared with other pathogens implicated in UTI, showing also the lowest percentage of multidrug resistant (MDR isolates (17%. Bacteria isolated from females were less resistant than those isolated from males and this difference increased with the patient age. Conclusions The differences in sex and age must be taken into account at the moment of empirical prescription of antimicrobials. From the recommended antimicrobials by the European Association of Urology guidelines, the first line drugs (pivmecillinam and nitrofurantoin and the alternative antibiotic amoxicillin-clavulanic acid (AMX-CLA are appropriate to treat community-acquired UTI, but the fluoroquinolones should not be suitable to treat male infections and the trimethoprim-sulfamethoxazole (SXT shall not be used in the treatment of UTI at this level.

Linhares Inês

2013-01-01

305

Electronic Document Management: A Human Resource Management Case Study  

Directory of Open Access Journals (Sweden)

Full Text Available This case study serve as exemplar regarding what can go wrong with the implementation of an electronic document management system. Knowledge agility and knowledge as capital, is outlined against the backdrop of the information society and knowledge economy. The importance of electronic document management and control is sketched thereafter. The literature review is concluded with the impact of human resource management on knowledge agility, which includes references to the learning organisation and complexity theory. The intervention methodology, comprising three phases, follows next. The results of the three phases are presented thereafter. Partial success has been achieved with improving the human efficacy of electronic document management, however the client opted to discontinue the system in use. Opsomming
Die gevalle studie dien as voorbeeld van wat kan verkeerd loop met die implementering van ’n elektroniese dokumentbestuur sisteem. Teen die agtergrond van die inligtingsgemeenskap en kennishuishouding word kennissoepelheid en kennis as kapitaal bespreek. Die literatuurstudie word afgesluit met die inpak van menslikehulpbronbestuur op kennissoepelheid, wat ook die verwysings na die leerorganisasie en kompleksietydsteorie insluit. Die metodologie van die intervensie, wat uit drie fases bestaan, volg daarna. Die resultate van die drie fases word vervolgens aangebied. Slegs gedeelte welslae is behaal met die verbetering van die menslike doeltreffendheid ten opsigte van elektroniese dokumentbestuur. Die klient besluit egter om nie voort te gaan om die huidige sisteem te gebruik nie.

Thomas Groenewald

2004-11-01

306

Smartphone Forensics Analysis: A Case Study  

Directory of Open Access Journals (Sweden)

Full Text Available Smartphone forensics is a sub-set of digital forensics, and refers to the investigation and acquisition of artefacts in mobile phones. New threats to mobile phones made forensic science a challenging endeavour in the last couple of years. Number of mobile users is increasing worldwide and createstremendous problems and challenges. The literature relevant to Smartphone forensics, as explored in this paper, focuses on the architecture of Smartphone operating systems and anti-forensics techniques. It also addresses the digital evidence of Smartphone applications. In this paper, through a consideration of types of crimes involving Smartphone’s, a real case study from the Sultanate of Oman is presented. This case study undertakes practical experiments to identified sources for evidence that can later be used in the judiciary system.

Mubarak Al-Hadadi

2013-12-01

307

Management & Communication: Project Management Case Study  

CERN Document Server

We are pleased to announce the recent launch of a new workshop on Project Management. This is designed for People with budgetary, scheduling and/or organizational responsibilities in a project or a sub-project. The objectives through a management case study specially suited to CERN are: to become familiar with modern management techniques in use for structuring, planning, scheduling, costing and progress monitoring of a project or a sub-project. to understand in-depth issues associated with Deliverable-oriented Project Management, Earned Value Management, Advanced Project Cost Engineering and Project Risk Management. The full description of this workshop can be found here. The next session will be held on 8 October 2004. If you are interested in this workshop, please contact Nathalie Dumeaux, email or 78144. Programme of Seminars October to December 2004 Situation : 21.09.2004 Séminaires bilingues Dates Jours Places disponibles Project Management Case study 8 October 1 oui Intr...

Nathalie Dumeaux

2004-01-01

308

Maternal Health: A Case Study of Rajasthan  

OpenAIRE

This case study has used the results of a review of literature to understand the persistence of poor maternal health in Rajasthan, a large state of north India, and to make some conclusions on reasons for the same. The rate of reduction in Rajasthan's maternal mortality ratio (MMR) has been slow, and it has remained at 445 per 1000 livebirths in 2003. The government system provides the bulk of maternal health services. Although the service infrastructure has improved in stages, the availabili...

Iyengar, Sharad D.; Iyengar, Kirti; Gupta, Vikram

2009-01-01

309

Case Study for Holylight(HK)  

OpenAIRE

In this thesis the case company – Holylight (HK) was thoroughly studied. The company structure, business strategic management and Marketing mix (4ps) were analyzed using SWOT analysis. It was found that Holylight (HK) had huge poten-tial in the business its stable supplies from the United States of America, Europe and Australia; Alliance partnership company ensure the steady sales channel in potential market – China that further development and expansion are highly feasible. Howeve...

Ha, Kong Ho

2013-01-01

310

BOOK REVIEW: Case Studies in Knowledge Management  

OpenAIRE

161Case Studies in Knowledge ManagementEdited by Murray JennexHersley: PA: Idea Group, 2005, pp. 372, ISBN 1-59140-352-9Reviewed by Dr. Adnan BOYACIAnadolu UniversityEski?ehir-TurkeyKnowledge management (KM) as a structured system and the way to the effectiveness isrelatively new field for the contemporary organizations functioning in different andcompetitive domain of public and private sectors in terms of getting optimal effectivenessunderlined by the concepts such as quality, productivity...

Boyaci, Reviewed By Dr Adnan

2005-01-01

311

An Industrial Case Study for Scrum Adoption  

OpenAIRE

Agile software development methods and techniqueshave been demonstrated to improve employee morale, enhanceend-product quality, and achieve customer satisfaction. Agileadoption always comes with special challenges and thus fundamental organizational changes are necessary for successful outcome. In this paper we present an in-depth case study for adopting Scrum in a multi-team and multi-project situation to a government entity in the United Arab Emirates (U.A.E). While there are many successfu...

Hassan Hajjdiab; Al Shaima Taleb; Jauhar Ali

2012-01-01

312

A warehouse design decision model: case study  

OpenAIRE

Today’s competitive and volatile market requires flexibility, quality and efficiency from the logistics operations. In this context, warehouses are an important link of the logistic chain and warehouse management plays an important role over customer's service. Throughout this work we analyze a mathematical model aiming to support warehouse management decisions. A case study is used for that purpose and the model jointly identifies product allocation to the functional areas in the warehouse...

Geraldes, Carla A. S.; Carvalho, Maria Do Sameiro; Pereira, Guilherme

2008-01-01

313

Sealed-Bid Auctions: Case Study  

OpenAIRE

Auctions are an important link in supply chains.This paper presents an empirical investigation of a single-shot simultaneous or sealed-bid auction.This case study concerns the mussel trade in Yerseke, the Netherlands.It surprisingly demonstrates that companies buying large quantities of mussels pay higher unit prices.It also reveals that auction prices react sharply to changes in annual supply and that seasonality causes a bullwhip effect.Finally, purchase managers perform significantly diffe...

Schaik, F. D. J.; Kleijnen, J. P. C.

2001-01-01

314

Marketing and clinical trials: a case study  

OpenAIRE

Abstract Background Publicly funded clinical trials require a substantial commitment of time and money. To ensure that sufficient numbers of patients are recruited it is essential that they address important questions in a rigorous manner and are managed well, adopting effective marketing strategies. Methods Using methods of analysis drawn from management studies, this paper presents a structured assessment framework or reference model, derived from a case analysis of the MRC's CRASH trial, o...

Entwistle Vikki A; Snowdon Claire; Garcia Jo; Knight Rosemary C; Shakur Haleema; Elbourne Diana R; Roberts Ian; Francis David; McDonald Alison M; Grant Adrian M; Campbell Marion K

2007-01-01

315

Private power financing: a case study  

International Nuclear Information System (INIS)

The Public Utility Regulatory Power Act (PURPA) in the USA and the UK's Electricity Act passed in 1989 are discussed and the first UK private power project is considered. A case study is presented, and covers the questions of when to approach the bank; banker versus investment bank; project fundamentals; the sponsor and the management team; the strength of the key project agreements; syndication of the project debt; and bank support during construction and operation. (author)

316

Transcultural Nursing: Basic Concepts and Case Studies  

Science.gov (United States)

Created by the nonprofit organization Transcultural Nursing, this very useful website covers both basic concepts related to diversity as well as providing an array of case studies designed to help students, nurses and anyone practicing in the health professions better understand cultural diversity. The case studies are nicely designed, divided by general cultural community (Hispanic, Middle Eastern, Deaf, Asian, Afro American and Migrant Worker) with basic information about religion(s) or other demographic information that might relate to that particular group. Following the general information are three or four case studies illustrating specific instances where cultural differences came into play in a nursing or medical situation. The site also has an introductory area, which outlines some basic concepts including defining terms such as, cultural values and ethnocentrism. A page dedicated to the topic of third world nursing offers insight into this type of hands on experience in nursing in diverse communities, and a list of references and related links round out this very useful site.

Fernandez, Kathy

317

Case studies in using alternative sampling technologies  

International Nuclear Information System (INIS)

Traditionally, site assessments for delineating petroleum hydrocarbon releases have been conducted in several phases. One way to improve the traditional assessment and remedial investigation methodology is to utilize alternative sampling techniques such as drive point sampling, combined with on-site field analytical methods. There are several drive point sampling technologies which have been used successfully in the past several years to collect both soil and groundwater samples. These drive point techniques include the Geoprobe trademark, Hydropunch trademark, Cone Penetrometer Testing (CPT) and KV trademark Sampling System. Utilized in combination with an on-site mobile laboratory equipped to conduct headspace analysis by EPA method 3810, these drive point sampling methods provide immediate, real-time data at a lower cost per data point. This paper presents three case studies in utilizing the Geoprobe trademark as an alternative sampling technology to gather both soil and groundwater data to delineate site contamination and provide for more informed, remedial solutions. In two of the cases (retail service stations), remediation by groundwater pump and treat had been on-going for several years with little remedial progress. The use of the alternative sampling technologies provided the needed information to expedite site clean-up. The remaining site is a petroleum refining facility where an active recovery system was planned. In this case, the data provided through thIn this case, the data provided through the expedited assessment provided imperative design information

318

Using Case Studies to Teach About Global Issues, Bali: A Case Study  

Science.gov (United States)

The South Pacific island of Bali is used as a case study of overpopulation and food shortage. A brief description of the resources, the typical lifestyle of the Balinese farmer, and possible teaching techniques are given. (DE)

Oswald, James M.

1974-01-01

319

Improving Computer-Mediated Synchronous Communication of Doctors in Rural Communities Through Cloud Computing: A Case Study of Rural Hospitals in South Africa  

OpenAIRE

This paper investigated how doctors in remote rural hospitals in South Africa use computer-mediated tool to communicate with experienced and specialist doctors for professional advice to improve on their clinical practices. A case study approach was used. Ten doctors were purposively selected from ten hospitals in the North West Province. Data was collected using semi-structured open ended interview questions. The interviewees were asked to tell in their own words the averag...

Alfred Coleman; Herselman, Marlien E.; Mary Coleman

2012-01-01

320

Case Study: Learning About the Nature of Science With Case Studies  

Science.gov (United States)

Case studies are an effective way to help students understand how science works, and perhaps even more importantly, how science knowledge is constructed. Yet often when we teach the content of science, we overlook the nature of science (NOS), and in particular, how knowledge claims of science are justified (Abd-El-Khalick, Bell, and Lederman 1998; Duschl 1990). The seven examples of case studies presented here attempt to contextualize NOS concepts focused on learning about how scientific knowledge is acquired.

Kathy Gallucci

2009-05-01

321

Why Is Seed Production So Variable among Individuals? A Ten-Year Study with Oaks Reveals the Importance of Soil Environment  

OpenAIRE

Mast-seeding species exhibit not only a large inter-annual variability in seed production but also considerable variability among individuals within the same year. However, very little is known about the causes and consequences for population dynamics of this potentially large between-individual variability. Here, we quantified seed production over ten consecutive years in two Mediterranean oak species – the deciduous Quercus canariensis and the evergreen Q. suber - that coexist in forests ...

Pe?rez-ramos, Ignacio M.; Aponte, Cristina; Garci?a, Luis V.; Padilla-di?az, Carmen M.; Maran?o?n, Teodoro

2014-01-01

322

The case study of biomaterials and biominerals  

Science.gov (United States)

The teaching of biomaterials as case study by on-line platform , susceptible to develop both individually and in groups, got different objectives proposed by the European Higher Education System, among which include: participate actively in the teaching-learning process by students, interpreting situations, adapt processes and solutions. It also improves oral and written communication, analytical skills and synthesis and also the ability to think critically. Biomaterials have their origin in biominerals. These are solid inorganic compounds of defined structure, consisting of molecular control mechanisms that operate in biological systems. Its main functions are: structural support, a reservoir of essential elements, sensors, mechanical protection and storage of toxic elements. Following the demand of materials compatible with certain functional systems of our body, developed biomaterials. Always meet the condition of biocompatibility. Should be tolerated by the body and do not provoke rejection. This involves a comprehensive study of physiological conditions and the anatomy of the body where a biomaterial has to be implemented. The possibility of generating new materials from biominerals has a major impact in medicine and other fields could reach as geology, construction, crystallography, etc. While the study of these issues is in its infancy today, can be viewed as an impact on the art and future technology. Planning case study that students would prepare its report for discussion in subgroups. Occurs then the pooling of individual analysis, joint case discussion and adoption by the subgroup of a consensual solution to the problem. The teacher as facilitator and coordinator of the final case analysis, sharing leads to group-wide class and said the unanimous decision reached by the students and gives his opinion on the resolution of the case. REFERENCES D.P. Ausubel. Psicología Educativa. Un punto de vista cognoscitivo. Trillas. Ed. 1983. E.W. Eisner. Procesos cognitivos y currículum. Una base para decidir lo que hay que enseñar. Martínez Roca Ed. 1987. C.O. Oriakhi. Polymer Nanocomposition Approach to Advanced Materials, Journal of Chemical Education. Vol. 77. 2000. 9-16. G. Lagaly & T. J. Pinnavaia.Clay Mineral-Polymer Nanocomposites, Applied Clay Science. Vol. 5. 1999. G. Gibbs. Changing lecturer's conceptions of teaching and learning through action research,. SRHE Press, 1995.

Del Hoyo Martínez, Carmen

2013-04-01

323

Terahertz applications in cultural heritage: case studies  

Science.gov (United States)

Terahertz (THz) spectroscopy and imaging is a non-destructive, non-contact, non-invasive technology emerging as a tool for the analysis of cultural heritage. THz Time Domain Spectroscopy (TDS) techniques have the ability to retrieve information from different layers within a stratified sample, that enable the identification of hidden sub-layers in the case of paints and mural paintings. In this paper, we present the THz TDS2 system developed in the European Commission's 7th Framework Program project CHARISMA [grant agreement no. 228330]. Bespoke single processing algorithms; including a deconvolution algorithm can be deployed to increase the resolution and the global performance of the system. The potential and impact of this work is demonstrated through two case studies of mural paintings, where the capability to reveal the stratigraphy of the artworks is demonstrated.

Giovannacci, D.; Martos-Levif, D.; Walker, G. C.; Menu, M.; Detalle, V.

2013-11-01

324

Pathology Case Study: Anterior Mediastinal Mass  

Science.gov (United States)

The Department of Pathology at the University of Pittsburgh Medical Center has compiled a wide range of pathology case studies to aid students and instructors in the medical/health science field. This specific case involves the evaluation of a fifty-seven year old female patient with an anterior mediastinal mass. From the patient's history we are aware of family history of Zollinger Ellison syndrome, and gastrinoma. It is also known that the patient has hyperparathyroidism and a 2 cm prolactin secreting pituitary adenoma. Clinical laboratory data, FNA cytology results, gross and microscopic descriptions, and images are all included to aid in the diagnosis. The official diagnosis is also included, which allows students to check their own conclusions. This is an excellent resource for providing students experience with patient history, lab results and diagnostics.

Nine, Jeff S.

325

Pathology Case Study: Recent Onset Seizures  

Science.gov (United States)

This neuropathology case study, provided by the University of Pittsburgh Department of Pathology, is an excellent learning tool for students and instructors in the health science fields. In this case, a 12-year-old boy presents with a history of headaches, â??and a recent onset of right-sided seizures followed by the loss of consciousnessâ?. Visitors are shown CT scan images of the patientâ??s brain, along with microscopic images. The official diagnosis found in the â??Final Diagnosisâ? section is accompanied by a discussion of the contributing doctorâ??s findings and a list of references. This is an excellent resource for students in the health sciences to familiarize themselves with using patient history and laboratory results to diagnose patientâ??s conditions.

Biernat, Wojciech

326

The comparison of grey-scale ultrasonic and clinical features of hepatoblastoma and hepatocellular carcinoma in children: a retrospective study for ten years  

Directory of Open Access Journals (Sweden)

Full Text Available Abstract Background Hepatoblastoma (HBL and hepatocellular carcinoma (HCC are respectively the first and the second most common pediatric malignant liver tumors. The purpose of this study was to evaluate the combined use of the ultrasound examination and the assessment of the patients' clinical features for differentiating HBL from HCC in children. Methods Thirty cases of the confirmed HBL and 12 cases of the confirmed HCC in children under the age of 15 years were enrolled into our study. They were divided into the HBL group and the HCC group according to the histological types of the tumors. The ultrasonic features and the clinical manifestations of the two groups were retrospectively analyzed, with an emphasis on the following parameters: onset age, gender (male/female ratio, positive epatitis-B-surface-antigen (HBV, alpha-fetoprotein increase, and echo features including septa, calcification and liquefaction within the tumors. Results Compared with the children with HCC, the children with HBL had a significantly younger onset age (8.2 years vs. 3.9 years, P Conclusion Ultrasonic features combined with clinical manifestations are valuable for differentiating HBL from HCC in children.

Luo Yan

2011-06-01

327

Case studies in organic contaminant hydrogeology  

International Nuclear Information System (INIS)

The effective management of domestic solid waste and hazardous, toxic, and radioactive waste is a major problem in the area of environmental geology and water sciences throughout the world. A series of case studies is presented of organic contaminants from both solid and hazardous waste disposal facilities to provide examples of these problems. The facilities were investigated to determine risks and liabilities before acquisition, to determine the site hydrogeologic conditions for design of appropriate groundwater monitoring plans, and/or to determine the potential for groundwater contamination. The case studies are of disposal facilities located in glacial tills, carbonaceous weathered clay soils, weathered shale, limestone bedrock, dolomite bedrock, and alluvial and sedimentary deposits. The results of these studies and investigations show certain relationships in the distribution of organic pollutants to the different geologic and hydrogeologic characteristics of each facility. In each of the four case studies, all 129 priority pollutants were analyzed in private wells and/or monitoring wells. The 31 volatile organic compounds (VOCs) of the priority pollutant list were the majority of organic compounds detected. When VOCs are found in groundwater impacted by disposal facilities, they are present in groups and tend to be distributed in patterns based on their relative concentrations. It is rare to find only one or two VOCs from facilities where leakage has been deterom facilities where leakage has been detected. The ethylenes and ethanes appear to be more prevalent and mobile than aromatic VOCs. The aromatics are restricted primarily to leachates and wastes and in monitoring wells located adjacent to facilities. 2 refs., 15 figs

328

Wind to Hydrogen in California: Case Study  

Energy Technology Data Exchange (ETDEWEB)

This analysis presents a case study in California for a large scale, standalone wind electrolysis site. This is a techno-economic analysis of the 40,000 kg/day renewable production of hydrogen and subsequent delivery by truck to a fueling station in the Los Angeles area. This quantity of hydrogen represents about 1% vehicle market penetration for a city such as Los Angeles (assuming 0.62 kg/day/vehicle and 0.69 vehicles/person) [8]. A wind site near the Mojave Desert was selected for proximity to the LA area where hydrogen refueling stations are already built.

Antonia, O.; Saur, G.

2012-08-01

329

Pathology Case Study: Cutaneous Nodules and Ulcers  

Science.gov (United States)

This is a case study presented by the University of Pittsburgh Department of Pathology, which presents "a 67 year old white male who underwent orthotopic cardiac transplantation in 1986 for cardiomyopathy." Visitors are given patient history, admission data, and pathological findings, including images, and are given the opportunity to diagnose the patient. A "Final Diagnosis" section provides a discussion of the findings as well as references. This is an excellent resource for students in the health sciences to familiarize themselves with using patient history and laboratory results to diagnose disease. It is also a helpful site for educators to use to introduce or test student learning in dermatologic pathology.

Abernethy, John

330

Pathology Case Study: Seizures and Progressive Dementia  

Science.gov (United States)

This is a neuropathology case study presented by the University of Pittsburgh Department of Pathology in which a 70-year-old female has seizures and progressive dementia. Visitors are given both the microscopic and gross descriptions, including images, and are given the opportunity to diagnose the patient. This is an excellent resource for students in the health sciences to familiarize themselves with using laboratory results to diagnose. It is also a helpful site for educators to use to introduce or test student learning in neuropathology.

Friese, Michael

331

A Case Study for HRT-UML  

Science.gov (United States)

The Hard-Real-Time Unified Modelling Language (HRT-UML) method replaces HRT-HOOD with a customized version of UML: it incorporates all the advantages of the HRT-HOOD method and improves the HRT-HOOD design concepts by converging to a more powerful and expressive modelling notation, that is currently a de-facto standard. This paper presents the principles of such a method and the related support toolset and describes the results of a case study showing how the method can be a comprehensive solution to the modelling of Hard Real Time systems.

D'Alessandro, M.; Mazzini, S.; Donati, F.

332

Pathology Case Study: Progressive Hearing Loss  

Science.gov (United States)

This is a case study presented by the University of Pittsburgh Department of Pathology in which a woman sought help for an progressive eight-year diminished sense of hearing, which developed with vertigo and left-side tinnitus. Visitors can view both microscopic and gross descriptions, including images, and have the opportunity to diagnose the patient. This is an excellent resource for students in the health sciences to familiarize themselves with using patient history and laboratory results to diagnose disease. It is also a helpful site for educators to introduce or test students of Neuropathology.

Böker, Dieter-Karsten

333

Pathology Case Study: Right Breast Mass  

Science.gov (United States)

This is a case study presented by the University of Pittsburgh Department of Pathology in which a woman found a mass in her right breast three weeks before seeking treatment. Visitors are given both the microscopic and gross descriptions, including images, and are given the opportunity to diagnose the patient. This is an excellent resource for students in the health sciences to familiarize themselves with using patient history and laboratory results to diagnose disease. It is also a helpful site for educators to use to introduce or test student learning in gynecologic pathology.

Amortegui, Antonio J.

334

Pathology Case Study: An Ovarian Mass  

Science.gov (United States)

This is a case study presented by the University of Pittsburgh Department of Pathology in which a girl discovered an ovarian mass at a young age. After surgical removal, the mass returned. Visitors can view gross and microscopic descriptions, including images, and have the opportunity to diagnose the patient. This is an excellent resource for students in the health sciences to familiarize themselves with using patient history and laboratory results to diagnose disease. It is also a helpful site for educators to introduce or test students of gynecological pathology.

Gupta, Dilip

335

Case study: Bioremediation in the Aleutian Islands  

International Nuclear Information System (INIS)

This case study describes the design, construction, and operation of a bioremediation pile on Adak Island, which is located in the Aleutian Island chain. Approximately 1,900 m3 of petroleum-contaminated soil were placed in the bioremediation pile. The natural bioremediation process was enhanced by an oxygen and nutrient addition system to stimulate microbial activity. Despite the harsh weather on the island, after the first 6 months of operation, laboratory analyses of soil samples indicated a significant (80%) reduction in diesel concentrations

336

Case study: Wireless Sensor Networks Technology  

Directory of Open Access Journals (Sweden)

Full Text Available This paper present the history of research in sensor networks over the past decades, including two important programs of the Defense Advanced Research Projects Agency (DARPA, and the Distributed Sensor Networks (DSN and the Sensor Information Technology (SensIT programs. Technology trends that impact the development of sensor networks are reviewed, and new applications such as infrastructure security, habitat monitoring. The paper concludes by presenting some recent case studies results in sensor network algorithms, including localized algorithms and directed diffusion, distributed tracking in wireless ad hoc networks, and distributed classification using local agents.

Naveen Jain

2013-03-01

337

Pathology Case Study: Repeat Heart Transplantation  

Science.gov (United States)

This is a case study presented by the University of Pittsburgh Department of Pathology in which a 47-year-old woman has developed coronary disease following a heart transplant. Visitors are given both the microscopic and gross descriptions, including images, and are given the opportunity to diagnose the patient. This is an excellent resource for students in the health sciences to familiarize themselves with using patient history and laboratory results to diagnose disease. It is also a helpful site for educators to use to introduce or test student learning in transplant pathology.

Richert, Charles A.

338

Pathology Case Study: Anterior Mediastinal Mass  

Science.gov (United States)

This is a hematopathology case study presented by the University of Pittsburgh Department of Pathology in which a 65 year old male has an anterior mediastinal mass. Visitors are given both the microscopic and gross descriptions, including images, and are given the opportunity to diagnose the patient. This is an excellent resource for students in the health sciences to familiarize themselves with using laboratory results to diagnose. It is also a helpful site for educators to use to introduce or test student learning in hematopathology medicine.

Callahan, Debra L.

339

Pathology Case Study: Hemangioma and Severe Thrombocytopenia  

Science.gov (United States)

This is a transfusion pathology case study presented by the University of Pittsburgh Department of Pathology in which a 3-week-old female has hemangioma and severe thrombocytopenia. Visitors are given laboratory values and images, and are granted the opportunity to diagnose the patient. This is an excellent resource for students in the health sciences to familiarize themselves with using laboratory results to diagnose. It is also a helpful site for educators to use to introduce or test student learning in transfusion pathology medicine.

Bontempo, Franklin

340

Pathology Case Study: Jaundice and Weight Loss  

Science.gov (United States)

This is a case study presented by the University of Pittsburgh Department of Pathology in which a 35-year-old man from Thailand has presented to the hospital with "jaundice, fatigue and weight loss of 10 to 15 pounds over the past few months." Visitors are given the patient history and microscopic description, including images, and are given the opportunity to diagnose the patient. This is an excellent resource for students in the health sciences to familiarize themselves with using patient history and laboratory results to diagnose disease. It is also a helpful site for educators to use to introduce or test student learning in surgical pathology.

Bastacky, Sheldon

341

Pathology Case Study: Irritable Bowel Syndrome (IBS)  

Science.gov (United States)

This is a case study presented by the University of Pittsburgh Department of Pathology in which a 64-year-old woman with a long history of IBS presents with a recent "exacerbation of diarrhea, increased abdominal cramping, and weight loss." Visitors are given both the gross and microscopic descriptions, including images, and are given the opportunity to diagnose the patient. This is an excellent resource for students in the health sciences to familiarize themselves with using patient history and laboratory results to diagnose disease. It is also a helpful site for educators to use to introduce or test student learning in gastrointestinal pathology.

Finkelstein, Sidney

342

Pathology Case Study: New Onset Seizures  

Science.gov (United States)

This is a case study presented by the University of Pittsburgh Department of Pathology in which a 26-year-old nurse is experiencing headaches and seizures. Visitors are given both the microscopic and gross descriptions, including neuroimaging results, and are given the opportunity to diagnose the patient. This is an excellent resource for students in the health sciences to familiarize themselves with using patient history and laboratory results to diagnose disease. It is also a helpful site for educators to use to introduce or test student learning in neuropathology.

Hamilton, Ronald

343

Pathology Case Study: Skin Rash and Proteinuria  

Science.gov (United States)

This is a case study presented by the University of Pittsburgh Department of Pathology in which a 8-year-old boy has a history of skin rash with concurrent hematuria and proteinuria. Visitors are given the microscopic and gross descriptions, immunoflourescent and electron microscopy findings, including images, and are given the opportunity to diagnose the patient. This is an excellent resource for students in the health sciences to familiarize themselves with using patient history and laboratory results to diagnose disease. It is also a helpful site for educators to use to introduce or test student learning in renal pathology.

Dickman, Paul S.

344

Pathology Case Study: Right Thigh Mass  

Science.gov (United States)

This is a case study presented by the University of Pittsburgh Department of Pathology in which a man presented with a painless mass in his right medial thigh, without an incidence of trauma. Visitors can view pathological findings, including images, to diagnose the patient. This is an excellent resource for students in the health sciences to familiarize themselves with using patient history and laboratory results to diagnose disease. It is also a helpful site for educators to introduce or test students of soft tissue pathology.

Rao, Uma N. M.

345

Case studies in Bayesian microbial risk assessments  

Directory of Open Access Journals (Sweden)

Full Text Available Abstract Background The quantification of uncertainty and variability is a key component of quantitative risk analysis. Recent advances in Bayesian statistics make it ideal for integrating multiple sources of information, of different types and quality, and providing a realistic estimate of the combined uncertainty in the final risk estimates. Methods We present two case studies related to foodborne microbial risks. In the first, we combine models to describe the sequence of events resulting in illness from consumption of milk contaminated with VTEC O157. We used Monte Carlo simulation to propagate uncertainty in some of the inputs to computer models describing the farm and pasteurisation process. Resulting simulated contamination levels were then assigned to consumption events from a dietary survey. Finally we accounted for uncertainty in the dose-response relationship and uncertainty due to limited incidence data to derive uncertainty about yearly incidences of illness in young children. Options for altering the risk were considered by running the model with different hypothetical policy-driven exposure scenarios. In the second case study we illustrate an efficient Bayesian sensitivity analysis for identifying the most important parameters of a complex computer code that simulated VTEC O157 prevalence within a managed dairy herd. This was carried out in 2 stages, first to screen out the unimportant inputs, then to perform a more detailed analysis on the remaining inputs. The method works by building a Bayesian statistical approximation to the computer code using a number of known code input/output pairs (training runs. Results We estimated that the expected total number of children aged 1.5-4.5 who become ill due to VTEC O157 in milk is 8.6 per year, with 95% uncertainty interval (0,11.5. The most extreme policy we considered was banning on-farm pasteurisation of milk, which reduced the estimate to 6.4 with 95% interval (0,11. In the second case study the effective number of inputs was reduced from 30 to 7 in the screening stage, and just 2 inputs were found to explain 82.8% of the output variance. A combined total of 500 runs of the computer code were used. Conclusion These case studies illustrate the use of Bayesian statistics to perform detailed uncertainty and sensitivity analyses, integrating multiple information sources in a way that is both rigorous and efficient.

Turner Joanne

2009-12-01

346

Reinforcement learning: Solving two case studies  

Science.gov (United States)

Reinforcement Learning algorithms offer interesting features for the control of autonomous systems, such as the ability to learn from direct interaction with the environment, and the use of a simple reward signalas opposed to the input-outputs pairsused in classic supervised learning. The reward signal indicates the success of failure of the actions executed by the agent in the environment. In this work, are described RL algorithmsapplied to two case studies: the Crawler robot and the widely known inverted pendulum. We explore RL capabilities to autonomously learn a basic locomotion pattern in the Crawler, andapproach the balancing problem of biped locomotion using the inverted pendulum.

Duarte, Ana Filipa; Silva, Pedro; dos Santos, Cristina Peixoto

2012-09-01

347

Pathology Case Study: Complications of Pregnancy  

Science.gov (United States)

This is a case study presented by the University of Pittsburgh Department of Pathology in which a pregnant woman experienced venous thrombosis and pulmonary embolism. Visitors are given both the microscopic and gross descriptions, including images, and are given the opportunity to diagnose the patient. This is an excellent resource for students in the health sciences to familiarize themselves with using patient history and laboratory results to diagnose disease. It is also a helpful site for educators to use to introduce or test student learning in gynecologic pathology.

348

Pathology Case Study: Chronic Myeloid Leukemia  

Science.gov (United States)

This is a case study presented by the University of Pittsburgh Department of Pathology in which a woman was diagnosed with Chronic Myeloid Leukemia, and became a candidate for a bone marrow transplant. Visitors can view both PB Count Chart and Flow Cytometry, including images, and have the opportunity to diagnose the patient. This is an excellent resource for students in the health sciences to familiarize themselves with using patient history and laboratory results to diagnose disease. It is also a helpful site for educators to introduce or test students of hematopathology.

Persad, Rajendra

349

Pathology Case Study: Large Right Lung Mass  

Science.gov (United States)

This is a case study presented by the University of Pittsburgh Department of Pathology in which a man presented with chest pain after 25 years of smoking. Tests revealed significant problems with the heart and lungs before the man suddenly went into cardiac arrest and died. Visitors can view both microscopic and gross descriptions, including images, and have the opportunity to diagnose the patient. This is an excellent resource for students in the health sciences to familiarize themselves with using patient history and laboratory results to diagnose disease. It is also a helpful site for educators to introduce or test students learning autopsy pathology.

Melhem, Mona

350

Pathology Case Study: Pineal Gland Mass  

Science.gov (United States)

This is a case study presented by the University of Pittsburgh Department of Pathology in which a 72-year-old diabetic woman presents to the hospital a two-week history of confusion, disorientation, and short-term memory loss. Visitors are given the microscopic description, including images, and are given the opportunity to diagnose the patient. This is an excellent resource for students in the health sciences to familiarize themselves with using patient history and laboratory results to diagnose disease. It is also a helpful site for educators to use to introduce or test student learning in neuropathology.

Dezube, Bruce J.

351

Prática do abortamento entre adolescentes: um estudo em dez escolas de Maceió (AL, Brasil Practice of abortion among teenagers: a study in ten schools of Maceió (AL, Brazil  

Directory of Open Access Journals (Sweden)

Full Text Available Trata-se de um estudo de corte transversal, realizado com o objetivo de investigar as razões que levaram adolescentes a provocarem o aborto, relacionando com idade e tipo de escola que frequentavam. A amostra foi calculada considerando o número de internações para curetagem pós-abortamento. Usou-se como instrumento um questionário semiestruturado, anônimo, aplicado em dez escolas, sorteadas dentre todas da cidade de Maceió (Alagoas, pesquisando-se adolescentes dos 12 aos 19 anos, do sexo feminino. Os dados foram analisados pelo Programa Epi Info, usando-se odds ratio e risco relativo para verificar associação entre variáveis e intervalo de confiança a 95%. Em uma amostra de 2.592 jovens, 559 (21,6% tinham vida sexual ativa, 182 (7,0% referiram ter engravidado e 149 (26,7% abortado. Medo da reação dos pais, idade, falta de apoio do companheiro e rejeição da gravidez foram razões para provocar o aborto, sendo medo a mais citada, em ambos os tipos de escola. O aborto foi mais citado nas escolas públicas, sendo significativo e protetor o risco para abortar antes dos 15 anos, e significativa a relação entre abortar e estudar em escolas públicas. O medo da reação dos pais como razão mais frequente sugere a necessidade de novos estudos sobre sexualidade e comunicação entre pais e filhos.This is a cross-cut study that was carried out with the objective of investigating the causes through which adolescents have provoked abortion, relating it to age and the type of school attended. The sample was calculated by taking into account the number of hospital admissions for post-abortion curettage. A semi-structured and anonymous questionnaire was used as a research instrument which was applied in ten schools randomly chosen among all schools, of Maceió (Alagoas, Brazil, to reach 12-19 years old female teenagers. The data were assessed by the Epi Info Program making use of odds ratio and a relative risk to verify any association among variables and a confidence interval at 95%. At a sample of 2,592 adolescents, 559 (21.6% had an active sexual life, 182 (7.0% informed to have been pregnant and 149 (26.7% to have aborted. The fear of the parents' reaction, age, lack of support of the partner and pregnancy rejection were the explanation to stimulate abortion. Fear was the most mentioned cause in both types of school. Abortion was more mentioned in public schools, being significant and protective the risk of aborting before the age of 15. The fear of the parents' reaction as a frequent cause suggests the necessity for additional studies on sexuality and communication between parents and children.

Divanise Suruagy Correia

2011-05-01

352

Prática do abortamento entre adolescentes: um estudo em dez escolas de Maceió (AL, Brasil) / Practice of abortion among teenagers: a study in ten schools of Maceió (AL, Brazil)  

Scientific Electronic Library Online (English)

Full Text Available Trata-se de um estudo de corte transversal, realizado com o objetivo de investigar as razões que levaram adolescentes a provocarem o aborto, relacionando com idade e tipo de escola que frequentavam. A amostra foi calculada considerando o número de internações para curetagem pós-abortamento. Usou-se [...] como instrumento um questionário semiestruturado, anônimo, aplicado em dez escolas, sorteadas dentre todas da cidade de Maceió (Alagoas), pesquisando-se adolescentes dos 12 aos 19 anos, do sexo feminino. Os dados foram analisados pelo Programa Epi Info, usando-se odds ratio e risco relativo para verificar associação entre variáveis e intervalo de confiança a 95%. Em uma amostra de 2.592 jovens, 559 (21,6%) tinham vida sexual ativa, 182 (7,0%) referiram ter engravidado e 149 (26,7%) abortado. Medo da reação dos pais, idade, falta de apoio do companheiro e rejeição da gravidez foram razões para provocar o aborto, sendo medo a mais citada, em ambos os tipos de escola. O aborto foi mais citado nas escolas públicas, sendo significativo e protetor o risco para abortar antes dos 15 anos, e significativa a relação entre abortar e estudar em escolas públicas. O medo da reação dos pais como razão mais frequente sugere a necessidade de novos estudos sobre sexualidade e comunicação entre pais e filhos. Abstract in english This is a cross-cut study that was carried out with the objective of investigating the causes through which adolescents have provoked abortion, relating it to age and the type of school attended. The sample was calculated by taking into account the number of hospital admissions for post-abortion cur [...] ettage. A semi-structured and anonymous questionnaire was used as a research instrument which was applied in ten schools randomly chosen among all schools, of Maceió (Alagoas, Brazil), to reach 12-19 years old female teenagers. The data were assessed by the Epi Info Program making use of odds ratio and a relative risk to verify any association among variables and a confidence interval at 95%. At a sample of 2,592 adolescents, 559 (21.6%) had an active sexual life, 182 (7.0%) informed to have been pregnant and 149 (26.7%) to have aborted. The fear of the parents' reaction, age, lack of support of the partner and pregnancy rejection were the explanation to stimulate abortion. Fear was the most mentioned cause in both types of school. Abortion was more mentioned in public schools, being significant and protective the risk of aborting before the age of 15. The fear of the parents' reaction as a frequent cause suggests the necessity for additional studies on sexuality and communication between parents and children.

Divanise Suruagy, Correia; Jairo Calado, Cavalcante; Eryvaldo Sócrates Tabosa do, Egito; Eulália Maria Chaves, Maia.

2469-24-01

353

The Effect of Using Case Studies in Business Statistics  

Science.gov (United States)

The authors evaluated the effect on learning of using case studies in business statistics courses. The authors divided students into 3 groups: a control group, a group that completed 1 case study, and a group that completed 3 case studies. Results evidenced that, on average, students whom the authors required to complete a case analysis received…

Pariseau, Susan E.; Kezim, Boualem

2007-01-01

354

Study of enzyme replacement therapy for Gaucher Disease: comparative analysis of clinical and laboratory parameters at diagnosis and after two, five and ten years of treatment  

Scientific Electronic Library Online (English)

Full Text Available Objective: To evaluate the impact of enzyme replacement therapy for Gaucher Disease on clinical and laboratory parameters after two, five and ten years of treatment. Methods: Data were collected from patient records and analyzed using BioEstat software (version 5.0). Student's t-test, Analysis of [...] Variance (ANOVA), Wilcoxon test and Kruskal–Wallis test were used for statistical analysis. Hepatomegaly and splenomegaly were analyzed using the Kappa test. Results: There was a significant increase in hemoglobin levels (p-value

Ana Maria Almeida, Souza; Thiago Pimentel, Muniz; Rafael Maciel, Brito.

2014-10-01

355

The Danish National Case Study Report  

DEFF Research Database (Denmark)

This report is the Danish case study report in the EU-financed project INTERACTS, which analyses experience and expectations to the interaction between NGOs, Science Shops and universities. The report analyses potentials and barriers to NGO’s and similar civil society groups’ use of research and science through co-operation with Science Shops as a mediator between universities and civil society. The Danish national case study report analyses three projects carried out through the Science Shops at DTU and RUC. One case is a co-operation between two DTU students and an NGO, whom is working towards promoting the use of bicycles. The project addresses how different actors perceive and understand the bicycles as technology, and how this is incorporated in traffic strategies and planning. A second case is a co-operation between two DTU students and a day-care centre, aiming at investigating storage facilities for organic food and the possibilities of local supply of organic food to the day-care centre. The third case is a co-operation between four RUC students and a local branch of a larger NGO working with nature and environment. This co-operation aims at investigating the pollution level in a village pond. Each case is described and reflected separately. A cross-analysis analyses the interactions among the involved actor group (clients, students, researchers, and Science Shops) discussing how the knowledge in the projects were developed and how the knowledge were used by the actors to try to gain impact on either research development or societal discourses. When civil society groups request assistance through the Science Shops, their need for knowledge and research is based on a need for scientific documentation of a certain topic, a need for enhancement of new knowledge and/or a need for development of new solutions and perspectives to problems. All three types of knowledge need is covered by one or more of the cases. The cases show that NGOs perceive research done through universities as neutral and creating more legitimacy than research done by the organisation itself. The cases show that all three NGO’s have used the results and findings to try influencing the societal discourses, and that the results and findings have helped two of the NGOs to gain influence. The analysis further shows that this influence seems to depend on the ability of the NGOs to build alliances with other actors. Knowledge in itself is not enough to get influence. The cases show that some students choose to conduct research through the Science Shops, because their research can be beneficial for someone, who does not have access to science and knowledge. Aspects like the possibility of gaining skills in co-operation and communication and knowledge about real life problems are also part of the students’ considerations when they chose to co-operate with civil society organisations through a Science Shop. Supervisors and scientists get engaged in Science Shop projects either because the topic of the investigation is within their own research area, because they find the topic interesting or because they see the project as a possibility to recruit students for later thesis projects or research projects. The challenges in the co-operation with civil society groups are to secure the scientific level in the projects, design the projects so it fits into the university schedule, without leaving out the time perspective of the clients, and secure the research is applicable for the clients and based on their need for knowledge. The case studies have shown different roles of a Science Shop. All Science Shops have a role as mediator between science and civil society by establishing contact between students, researchers and civil society organisations, but a Science Shop can also have a role as incubator in curricula and research development within the university based on the knowledge needs raised by civil society organisations. Through these activities a Science Shop might contribute to societal discourses, like when the Science Shop at DTU started addre

Brodersen, SØsser Grith Kragh; JØrgensen, Michael SØgaard

2003-01-01

356

VINKA, ten years on. Main scientific results  

International Nuclear Information System (INIS)

The VINKA facility in the TRITON swimming-pool reactor at Fontenay-aux-Roses allows the irradiation of solids at low temperatures in order to study crystalline defects. After ten years of operation the main scientific results obtained in the fields of creep and growth (chapter I), point defects (chapter II), amorphisation (chapter III) and dechanneling of particles (chapter IV) are summarised

357

Combining genetic association study designs: a GWAS case study  

OpenAIRE

Genome-wide association studies (GWAS) explore the relationship between genome variability and disease susceptibility with either population- or family-based data. Here, we have evaluated the utility of combining population- and family-based statistical association tests and have proposed a method for reducing the burden of multiple testing. Unrelated singleton and parent-offspring trio cases and controls from the Genetics of Kidneys in Diabetes (GoKinD) study were analyzed for genetic associ...

Estus, Janice L.; Fardo, David W.

2013-01-01

358

Formal Methods Case Studies for DO-333  

Science.gov (United States)

RTCA DO-333, Formal Methods Supplement to DO-178C and DO-278A provides guidance for software developers wishing to use formal methods in the certification of airborne systems and air traffic management systems. The supplement identifies the modifications and additions to DO-178C and DO-278A objectives, activities, and software life cycle data that should be addressed when formal methods are used as part of the software development process. This report presents three case studies describing the use of different classes of formal methods to satisfy certification objectives for a common avionics example - a dual-channel Flight Guidance System. The three case studies illustrate the use of theorem proving, model checking, and abstract interpretation. The material presented is not intended to represent a complete certification effort. Rather, the purpose is to illustrate how formal methods can be used in a realistic avionics software development project, with a focus on the evidence produced that could be used to satisfy the verification objectives found in Section 6 of DO-178C.

Cofer, Darren; Miller, Steven P.

2014-01-01

359

Siting case studies in Western Europe  

International Nuclear Information System (INIS)

As a Fellow of the European Environmental Fellowhip Program for U.S. Environmentalists in 1987-88, the investigator collected case studies relating to the siting of controversial facilities in Western Europe. The focus of the data collection was to determine which policies and procedures were thought to have contributed to public acceptability, and conversely, which policies and procedures were thought to have contributed to public opposition. Case studies were analyzed to determine patterns and agreement. The investigator presents preliminary findings with regard to factors which may contribute to increased public acceptability in the siting of controversial facilities. Factors thought to have the most potential effect include sensitivity to cultural differences, the amount of time which is allowed to pass from the announcement of the siting plans to the opening of the facility, credibility of the technical staff, and sensitivity to the needs of politicians. Implications for policy and practice in the siting of facilities for nuclear waste management are discussed. Preliminary evidence suggests a need for more in-depth research and analysis of the effects of specific factors on public acceptability

360

Pathology Case Study: Substernal Chest Pain  

Science.gov (United States)

This is a case study presented by the University of Pittsburgh Department of Pathology featuring a 49-year-old married white male school teacher was a 2 pack/day smoker with a history of diabetes mellitus, hyperlipidemia and obesity, and a family history of coronary artery disease. He was awakened from his sleep at 03:00 with crushing substernal chest pain which radiated to his left arm and was accompanied by shortness of breath. This case study provides learning objectives along with autopsy findings both gross and microscopic in order to allow the user the opportunity to diagnose the patient. Clicking on the final diagnosis link will provide users with a discussion of the actual diagnosis along with important learning points as well as a list of references. This is an excellent resource for students in health sciences to familiarize themselves with using patient history and laboratory results to develop a diagnosis. It is also a helpful site for educators to use to introduce or test student learning in cardiovascular pathology.

Nichols, Larry

361

Commercializing Emerging Renewable Energy: A Case Study  

Directory of Open Access Journals (Sweden)

Full Text Available A broad scientific consensus exists that the global climate is changing. The Earth’s surface temperature could rise significantly over the next few decades, leading to us witnessing an entirely new and unknown planet. Improved energy efficiency, decreasing use of fossil fuels and wide diffusion of various renewable energy sources are among the focal measures to limit global warming to a sustainable level. The objective of this study is to analyse how renewable energy, such as wind power and bioenergy, could be efficiently commercialized. The evaluation is based on a case study and expert analyses exploiting lateral and parallel thinking methods, and group decision support systems tools. The results reveal that some of the generated ideas are ready for implementation to commercialize renewable energy, whereas others still require technical and commercial development and improvements before maturity.

Matti Lehtovaara

2012-12-01

362

Sedimentology of sandstone reservoirs: case studies  

Energy Technology Data Exchange (ETDEWEB)

Case studies of a number of sandstone reservoirs in Alberta and British Columbia are presented. These studies cover stratigraphy, log interpretation, drill cores, depositional history and environments, lithology, sedimentary structures, facies description, and petroleum occurrences. Specific formations included are: the Falher Member of the Spirit River Formation, used to show regional environmental interpretation made primarily by log correlations; point bar deposits of the Gething Formation; braided fluvial deposits of the Cadomin Formation; wave-dominated shoreline sequences of the Falher Member; shoreline facies of the Cardium Formation; tidal inlet reservoirs of the Halfway Formation; shelf sands of the Doe Creek Member of the Kaskapau Formation; tidally influenced, regressive shelf deposits of the Viking Formation; and the Glauconite Formation, used to demonstrate how integrated core, log and petrographic data can be compiled to solve complex stratigraphic and sedimentological problems. 7 refs., 37 figs.

Leckie, D.; Rosenthal, L.

1987-01-01

363

STAKEHOLDERS AND APART HOTELS: MULTIPLE CASE STUDY  

Directory of Open Access Journals (Sweden)

Full Text Available Means of accommodation involve a wide range of social actors and agents, as well as different business models. Management strategies in this sector have been increasingly important for long-term sustainability and competitiveness of business organizations. This study aims to analyze the interactions between apart-hotels and their stakeholders to foster an improvement of services provided, aligning the interface of strategic management from the point of view of managers and their key stakeholders. It is an exploratory study, with qualitative chacter, along with multiple case studies of the following establishments: Travel Inn, Hotels Slaviero and Etoile george v. Brazilian enterprises, which manage lodging facilities with apart-hotel concepts, combining features that enable comparative analysis of the study. For conceptual understanding, this study was based on literature about stakeholders, taking the work of Freeman (1984 and Freeman et al (2010 as main references. The research was conducted through semi-structured interviews with managers of lodging facilities and their key stakeholders and through direct observation and documentation. We found that not all groups of influence are considered in the planning of service flats. However, the organizations surveyed indicated that the market has realized the importance of the groups that exert influence and are influenced by their goals, and are therefore increasingly alert for integration of such groups in their strategic planning.

Patrícia Freire Ferreira Oliveira

2012-09-01

364

BOOK REVIEW: Case Studies in Knowledge Management  

Directory of Open Access Journals (Sweden)

Full Text Available 161Case Studies in Knowledge ManagementEdited by Murray JennexHersley: PA: Idea Group, 2005, pp. 372, ISBN 1-59140-352-9Reviewed by Dr. Adnan BOYACIAnadolu UniversityEski?ehir-TurkeyKnowledge management (KM as a structured system and the way to the effectiveness isrelatively new field for the contemporary organizations functioning in different andcompetitive domain of public and private sectors in terms of getting optimal effectivenessunderlined by the concepts such as quality, productivity…etc. Because of the growingimportance and the popularity of the KM either as a research topic or specialized coursesubject, a crucial need for understanding, conceptualization and implementation of KM asa system has emerged since the mid 1990’s. In this sense, the book contributes criticallyto fill the gap between theory and implementation as a teaching material.This edited book is published by Idea Group Publishing. The book has twenty chaptersdivided into seven sections. In addition to a section of authors’ biography contributing thebook and an index, there is a preface that the basic terms and key concepts underliningthe cases discussed following chapters, which is explained in a schematized way.Besides the editor, total of 47 authors have contributed to the book. These authors arefrom different countries, academic backgrounds, and institutions. Although approximatelyone third of the authors are from USA, the rest of the authors are from Canada, England,Austria, Germany, Australia, New Zealand, Egypt, Bahrain and China. The authorsrepresent a variety of universities, private companies, and military institutions. Most ofthem have strong professional backgrounds, which help them address the issues bothfrom theoretical and practical perspectives. Contributions of authors having differentbackgrounds and institutions enable the book to have very comprehensive spectrum andthis makes the book attractive practically for those working different sectors.The book presents case studies explaining actual applications of KM in a different oforganizational and global settings. Different subjects and issues associated withconstruction of KM system in different kinds of organizations are explored within eachsection. Organizational learning (OL, knowledge, culture and productivity are some ofthe issues tackled with construction of KM system in a variety of organizational andglobal settings.The book is organized into seven sections; KM in support of organizational learning,knowledge management in support of retaining organizational knowledge, knowledgemanagement strategy, issues in knowledge management, KM is support of knowledgetransfer, KM in support of projects, KM outcomes. Each section is related with an area KMresearch.In section I, there are two cases discussing KM in support of OL. The first case is fromLynne P. Cooper, Rebecca L. Nash, Tu-Anh T. Phan, and Teresa R. Bailey and describesdevelopment and operation of knowledge system in order to support learning oforganizational knowledge at the Jet Propulsion Laboratory in USA. It presents in detailimplementation and rollout of the system and argues the results from performance andusage data collected over 19 weeks. The second case is from Brigette McGregor-MacDonald and describes the work of global organizations in its KM efforts to sustain andtransfer learning from global leadership curriculum. It mainly focuses on KM solution162developed to support employees to sustain their learning, to enable them to share theirinsights and experiences with others, and thus increase organizational capability.Section 2 explores using KM to support the retention of organizational knowledge inorganizations where the work forces are in transition. In third chapter in this section HaniAbdel-Aziz, and Khaled Wahba discuss the building of organizational memory informationsystem (OMIS in an Egyptian Professional Services company suffering from knowledgeloss due to high rate of employee turnover In the fourth chapter, Gail Corbitt discussesdefinition identification and the transfer of the

Reviewed by Dr. Adnan BOYACI

2005-10-01

365

Socio-demographic profile and suicidal intent of attempted suicide cases: A hospital based study in West Bengal, India  

OpenAIRE

Background: Suicide is one of the ten major causes of death in India. Suicidal intent score has been found to be a good predictor of a subsequent completed suicide. The present study was conducted to find out the socio-demographic profile and the suicidal intent score of the cases of attempted suicide as well as to determine the association of suicidal intent score with various factors. Methodology: We conducted the present hospital based observational cross sectional study at a rural hospita...

Subhadip Bharati; Sharmila Mallik; Pratyay Pratim Datta; Asish Mukhopadhyay; Debalina Datta; Sahina Haq

2013-01-01

366

Histopathological Study of 100 Cases of Vasculartumours  

Directory of Open Access Journals (Sweden)

Full Text Available Introduction: Vascular tumors show a broad variety of morphological appearances and cilinical behavior, the lesions are ranging from benign hemangiomas to intermediate lesion, which are locally aggressive, to highly malignant angiosarcoma. There is also the grey zone between true neoplasia and hamartoma, which makes difficulty in histopathological assessment. It is also important to decide the degree of malignancy as it can strongly influence the choice of treatment and prognosis. Methodology: Hundred cases of vascular tumors received at the department of pathology, medical college and SSG hospital, Baroda have been studied with a view to carrying out a histopathological analysis. Results: mploying modified Enzinger’s classification (2001 the break up of 100 cases was as follows : 37 – capillary hemangiomas, 26 – granuloma pyogenicum, 15 – cavernous hemangiomas, 07 – lymphangiomas, 04 – masson’s hemangiomas (papillary endothelial hyperplasia, 03 – epithelioid hemangiomas, 03 – lymphangiomas circumscriptum, 01 – cystic hygroma, 01 – spindle cell hemangioendothelioma, 01 – epithelioid hemangioendothelioma, 01 – glomus tumor, 01 – angiosarcoma. Majority of vascular tumors were benign, more common in children and young adults, most common sites were head and neck, which required only local surgical excision. Conclusion: Malignant and intermediate tumors formed as extremely small proportion of vascular tumors, which should be treated aggressively and closely followed up. [National J of Med Res 2012; 2(2.000: 152-155

Kapuriya Dharmesh P

2012-04-01

367

Building energy information systems. User case studies  

Energy Technology Data Exchange (ETDEWEB)

Measured energy performance data are essential to national efforts to improve building efficiency, as evidenced in recent benchmarking mandates, and in a growing body of work that indicates the value of permanent monitoring and energy information feedback. This paper presents case studies of energy information systems (EIS) at four enterprises and university campuses, focusing on the attained energy savings, and successes and challenges in technology use and integration. EIS are broadly defined as performance monitoring software, data acquisition hardware, and communication systems to store, analyze, and display building energy information. Case investigations showed that the most common energy savings and instances of waste concerned scheduling errors, measurement and verification, and inefficient operations. Data quality is critical to effective EIS use, and is most challenging at the subsystem or component level, and with non-electric energy sources. Sophisticated prediction algorithms may not be well understood but can be applied quite effectively, and sites with custom benchmark models or metrics are more likely to perform analyses external to the EIS. Finally, resources and staffing were identified as a universal challenge, indicating a need to identify additional models of EIS use that extend beyond exclusive in-house use, to analysis services.

Granderson, J.; Piette, M.A.; Ghatikar, G. [Lawrence Berkeley, National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720 (United States)

2011-01-15

368

Building Energy Information Systems: User Case Studies  

Energy Technology Data Exchange (ETDEWEB)

Measured energy performance data are essential to national efforts to improve building efficiency, as evidenced in recent benchmarking mandates, and in a growing body of work that indicates the value of permanent monitoring and energy information feedback. This paper presents case studies of energy information systems (EIS) at four enterprises and university campuses, focusing on the attained energy savings, and successes and challenges in technology use and integration. EIS are broadly defined as performance monitoring software, data acquisition hardware, and communication systems to store, analyze and display building energy information. Case investigations showed that the most common energy savings and instances of waste concerned scheduling errors, measurement and verification, and inefficient operations. Data quality is critical to effective EIS use, and is most challenging at the subsystem or component level, and with non-electric energy sources. Sophisticated prediction algorithms may not be well understood but can be applied quite effectively, and sites with custom benchmark models or metrics are more likely to perform analyses external to the EIS. Finally, resources and staffing were identified as a universal challenge, indicating a need to identify additional models of EIS use that extend beyond exclusive in-house use, to analysis services.

Granderson, Jessica; Piette, Mary Ann; Ghatikar, Girish

2010-03-22

369

Cancer preceding Wegener's granulomatosis: a case-control study  

DEFF Research Database (Denmark)

OBJECTIVE: To investigate whether patients with WG have an increased risk of malignancies prior to and/or around the time of the vasculitis diagnosis, as suggested by previous studies. METHODS: A total of 293 WG patients were included in the study. Ten gender- and age-matched controls were selected randomly for each patient from the Danish Central Population Register. Information on malignancies was obtained through the Danish Cancer Registry. Occurrence of malignancies before WG diagnosis among patients and before WG diagnosis of their matched case among controls (reference date) was compared by calculation of prevalence odds ratios (OR). RESULTS: Twenty-six patients were diagnosed with cancer before WG, while 194 controls were diagnosed with cancer before the reference date (OR 1.4; 95% CI 0.9, 2.2). Among specific malignancies, a significantly increased prevalence was found for testis cancer (OR 6.4; 95% CI 1.1, 38) based on two patients, who developed testis cancer >10 years before WG. The overall prevalence of malignancies diagnosed <2 years before WG was not significantly increased (OR: 1.6; 95% CI: 0.8, 3.4), but non-melanoma skin cancer occurred with an increased prevalence within this time interval (OR 4.0; 95% CI 1.4, 12). CONCLUSIONS: We did not find clear evidence of an increased prevalence of preceding cancer in our WG cohort, indicating that shared risk factors are of minor importance for the excess of malignancies that occur in WG patients after the vasculitis diagnosis. Furthermore, our current and previously reported latency analyses do not substantiate that serious malignancies play a significant role in the pathogenic events that trigger development of WG.

Faurschou, Mikkel; Mellemkjaer, Lene

2009-01-01

370

Case studies of attacks on communication networks  

Energy Technology Data Exchange (ETDEWEB)

Recently, as the computer hardware and communications are developed, the data exchange through inter-networking has been highlighted and the data is being recognized as a great asset. Most of the organizations, businesses and enterprises are open to the external world-computer communication networks, attention must be focused on the securities of the information infrastructure. A government organization has been developing 'Circuits Analyzers', and 'Hacker-Tracking Program' and is struggling to track down sneakers. In this report, we analyze the contents of the cases where the communication network has been invaded, from the past up until now in Korea. This report also contains the result of a study on E-mail security, for the protection of KAERI Integrated Management Information System under which utilizes the CALS concepts and web services. (Author)

Kang, Sin Bok; Han, Eon Suk [Korea Atomic Energy Research Institute, Taejon (Korea, Republic of)

1996-06-15

371

Case Studies in Primary Health Care  

Science.gov (United States)

The Johns Hopkins University's Bloomberg School of Public Health has participated in the OpenCourseWare program for a number of years, and this course is one of their most recent offerings. Created by Henry Taylor and Henry Perry, these course materials introduce "students to the origins, concepts, and development of community-based primary health care through case studies from both developing and developed countries." On this course site, visitors can read through the syllabus, examine the course schedule, and look over the lecture materials. In the lecture materials area, visitors will find lecture slides and their corresponding audio files. Some of the topics covered here include the roots of community-based primary health care and women's empowerment in Afghanistan. Finally, visitors can check out some of the course readings, which are offered in the pdf format.

Perry, Henry

2011-01-01

372

Corporate Government Strategy Development: A Case Study  

Directory of Open Access Journals (Sweden)

Full Text Available In this article, we present a case study of one the successful government organisation strategy development exercises in the United Arab Emirates (UAE. The 2010-2013 strategy of Emirates Identity Authority (Emirates ID supported organisational development and allowed the Emirates ID to become a pioneer in its field of practice. Its strategy was among the reasons behind its selection and winning the Best Federal Authority Award in the 2012 UAE's federal Government Excellence Programme. This article attempts to describe the principles on which the organisational strategy was developed. It also outlines major accomplishments and the strategy's impact on overall organisational performance. We conclude that the new strategy helped the organisation become a successful example in the UAE and that further lessons can be learned from it, as we outline and discuss them to influence the field of practice.

Ali M. Al-Khouri

2012-07-01

373

The virtual information: a case study  

Directory of Open Access Journals (Sweden)

Full Text Available In todays economics, the fact that information is a major factor of production and of increasing importance as a source of competitive advantage is a generally accepted truism. The trend towards global markets has strongly impacted the competitive situation of many enterprises. Never has the economic environment been subject to so many drastic and rapid changes. This put new weight factors on the requirements for design of business process. This paper explores the case of an Italian legal office that has studied more and more innovative solutions both to satisfy the demands of the clienteles and to oppose the action of the new competitors. Comparing classic models and the theories of Porter with the characteristics and needs of new economy, it shows as the ability to possess, to easily have access, to creatively use of information constitutes one of the more strategic sources of the competitive advantage.

Ginevra Gravili

2012-09-01

374

Pathology Case Study: Enlarged Axillary Lymph Node  

Science.gov (United States)

This is a case study presented by the University of Pittsburgh Department of Pathology, which describes a 73 year old female who had a history of thyroidectomy for benign nodules who presented with a lump in her thyroidectomy scar. Visitors are given a patient history, microscopic description, and immunohistochemistry, including images. They are also given an opportunity to diagnose the patient before clicking on the "Final Diagnosis" section, which provides a discussion of the findings as well as references. This is an excellent resource for students in the health sciences to familiarize themselves with using patient history and laboratory results to diagnose disease. It is also a helpful site for educators to use to introduce or test student learning in hematopatholgy.

Contis, Lydia C.

375

Robust control systems theory and case studies  

CERN Document Server

"Robust Control Systems" gives a self-contained introduction to modern Control Theory. It thus adds a textbook to the existing research-oriented literature on Robust Control. The author lays emphasis on the modern aspects of the design of controllers with prescribed performance and robustness properties. Different to the classical engineering approach, a rigorous mathematical treatment is essential for the full understanding and applicability of the modern methods such as H2 or H8 control or methods based on the structured singular value µ. Nevertheless, no prior knowledge of Control Theory is required as the classical fundamentals are introduced within the first few chapters. Subsequently a large part of the text provides elementary examples and industrial case studies, which are developed in full detail to show how modern methods can be applied to advanced problems. They make intensive use of MATLAB, especially the Control Systems Toolbox and the µ-Analysis and Synthesis Toolbox.

Mackenroth, Uwe

2004-01-01

376

ASME Section III upgrading - case studies  

International Nuclear Information System (INIS)

Nuclear utilities are constantly facing problems obtaining ASME Section III pressure-boundary components, due to manufacturers' not having acceptable American Society of Mechanical Engineers (ASME) III or Technical Standards and Safety Association (TSSA) N285.0 Certificates of Authorization, or allowing their ASME III programs to lapse. The list of qualified manufacturers is relatively tiny, thereby restricting the availability of acceptable pressure-boundary components. Nuclear Logistics, Inc. (NLI) works with cooperative Original Equipment Manufacturer's (OEM's) to produce their equipment under NLI's ASME Section III Certificates of Authorization. This engineering and manufacturing model allows utilities access to a much wider range of pressure-boundary equipment, available from NLI as N285.0 Class 1, 2 or 3. This presentation outlines some case studies describing NLI's ASME Section III upgrading process. (author)

377

Predicting Vocabulary Comprehension: A Case Study  

Directory of Open Access Journals (Sweden)

Full Text Available The role of vocabulary comprehension in the reading process may be easily overlooked in fifth/sixth semester college Spanish courses taught in the USA. The teaching materials available for these courses may be deceiving in that the types of readings and the absence of systematic pedagogical treatment of the vocabulary may create the impression that students master more vocabulary than they actually do. Therefore, instructors' ability to predict what vocabulary will cause a comprehension breakdown becomes valuable. This case study presents data from a class that was either a fifth/sixth semester Spanish class taught at a university in the USA. The data show that the instructor was 37% accurate in predicting what words would have to be looked up by the students when they were given the task of reading a passage

Concepción B. Godev

2011-01-01

378

Pathology Case Study: Post Transfusion Hemolysis  

Science.gov (United States)

This is a case study presented by the University of Pittsburgh Department of Pathology, which describes a 56-year-old female with a 20 year history of systemic lupus erythematosis with a history of deep venous thrombosis and a recent myocardial infarct. Visitors are given patient history and admission data along with data results from the resulting transfusion reaction investigation. A "Final Diagnosis" section provides a discussion of the findings as well as references. This is an excellent resource for students in the health sciences to familiarize themselves with using patient history and laboratory results to diagnose disease. It is also a helpful site for educators to use to introduce or test student learning in pathology and transfusion medicine.

Hari, Raj

379

Pathology Case Study: Large Anterior Abdominal Mass  

Science.gov (United States)

This is a case study presented by the University of Pittsburgh Department of Pathology which describes a 72 year old woman who presents with a three day history of constipation and a five year history of a large anterior abdominal mass in the right lower quadrant. Visitors are provided with patient history, admission data, hospital treatment course, and gross and microscopic descriptions, including images, and are given the opportunity to diagnose the patient. A "Final Diagnosis" section provides a discussion of the findings as well as references. This is an excellent resource for students in the health sciences to familiarize themselves with using patient history and laboratory results to diagnose disease. It is also a helpful site for educators to use to introduce or test student learning in surgical pathology.

Pushkar, Irina

380

Pathology Case Study: Dementia with Motor Dysfunction  

Science.gov (United States)

This is a case study presented by the University of Pittsburgh Department of Pathology, which a "77-year-old Hispanic-American man with a history of alcoholism and hepatitis C infection suffered severe bouts of recurrent hepatic encephalopathy." Visitors are given patient history, admission data, along with gross and microscopic descriptions, including images, and are given the opportunity to diagnose the patient. A "Final Diagnosis" section provides a discussion of the findings as well as references. This is an excellent resource for students in the health sciences to familiarize themselves with using patient history and laboratory results to diagnose disease. It is also a helpful site for educators to use to introduce or test student learning in neuropathology.

Spencer, David C.

381

Case studies of attacks on communication networks  

International Nuclear Information System (INIS)

Recently, as the computer hardware and communications are developed, the data exchange through inter-networking has been highlighted and the data is being recognized as a great asset. Most of the organizations, businesses and enterprises are open to the external world-computer communication networks, attention must be focused on the securities of the information infrastructure. A government organization has been developing 'Circuits Analyzers', and 'Hacker-Tracking Program' and is struggling to track down sneakers. In this report, we analyze the contents of the cases where the communication network has been invaded, from the past up until now in Korea. This report also contains the result of a study on E-mail security, for the protection of KAERI Integrated Management Information System under which utilizes the CALS concepts and web services. (Author)

382

Management by Values: A Case Study  

Directory of Open Access Journals (Sweden)

Full Text Available

The intention of this paper is to conclude the management approach by the case study of Chinese enterprise. There are a lot of management approaches in practice, one of the most influential and famous one is management by objective which is invented by the father of modern management discipline Peter F Drucker, he observed the case of American most successful enterprise such as GM and then concluded and created the relevant meaningful management tools, in effect, such valuable management theory is stemmed from the practice of management, and the premise is that there must have great enterprise first then the effective management way could be concluded, therefore, many management theories are created in America because that the US have many great organizations other countries did not have at that time. However, after more than thirty years’ efforts and accumulation of the development of reform and openingup in China, it is our pride that such accumulation has lead to a lot of successful enterprises in China, one of such great companies is Alibaba, which is created at the right time and the right place. Alibaba is chosen because that the reason of its success is different with other enterprises in China and even in the world, it is a company which never place high value on benefit, however, it is more successful than any other companies which are benefit-oriented, by the case study we find out that the secret of its success is nothing but an innovational practice of management, that is, Management by Values (MBV. As it is shown in this paper: Alibaba, the mission of which is to create easy way to trade anywhere. Such visionary mission gives Alibaba a dream of unlimited growth space, but only the mission itself is not enough, effective management by values helps Alibaba to realize this potential. Its practice implies the content of values and how to manage it in an organization; besides, it tells us the bases of managing by values, which are about the character of the leader and the purpose of the organization, Jack ma and Alibaba are good cases in point, Jack ma himself is poor in education, but he is really a practical dreamer and is also a leader who is good at developing others, as an organization , the purpose of Alibaba is the benefit of outside instead of its profit, both are really precious in today’s business; and what is more, its experience also witnesses the process of management by values: start an enterprise with an agreeable basic principles of values ; shaping the values when the enterprise begin to take shape; evaluating the values of all the employees when the enterprise become big; at last, the developing of values itself should be an important part of this management, which part of the values should be persisted, which part might be changed, Alibaba provide us a good case in point.

Key words: Management; Values; Business

Zhen LIU

2012-05-01

383

Compactified vacuum in ten dimensions  

International Nuclear Information System (INIS)

Since the 1920's, theories which unify gravity with the other fundamental forces have called for more than the four observed dimensions of space-time. According to such a theory, the vacuum consists of flat four-dimensional space-time described by the Minkowski metric M4 and a compactified space B. The dimensions of B are small, and the space can only be observed at distance scales smaller than the present experimental limit. These theories have had serious difficulties. The equations of gravity severely restrict the possible choices for the space B. The allowed spaces are complicated and difficult to study. The vacuum is furthermore unstable in the sense that a small perturbation causes the compactified dimensions to expand indefinitely. There is an addition a semi-classical argument which implies that the compactified vacuum by annihilated by virtual black holes. It follows that a universe with compactified extra dimensions could not have survived to the present. These results were derived by applying the equations of general relativity to spaces of more than four dimensions. The form of these equations was assumed to be unchanged by an increase in the number of dimensions. The authors illustrate the effect of such terms by considering the example B = S6 where S6 is the six-dimensional sphere. Only when the extra terms are included is this choice of the compactified space allowed. He explore the effect of a small perturbation on suchthe effect of a small perturbation on such a vacuum. The ten-dimensional spherically symmetric potential is examined, and I determine conditions under which the formation of virtual black holes is forbidden. The examples M4 x S6 is still plagued by the semi-classical instability, but this result does not hold in general. The requirement that virtual black holes be forbidden provides a test for any theory which predicts a compactified vacuum

384

National Center for Case Study Teaching in Science  

Science.gov (United States)

The web site of the National Center for Case Study Teaching in Science includes descriptions of this teaching method, discussions of its uses and advantages in science pedagogy, information on assessing case-based instruction, and an extensive collection of case studies for use in the classroom. These cover a variety of topics, including atmospheric science, geology, chemistry, medicine, and food science. Each study is accompanied by an instructor guide for teaching the case. Other site materials include information on conferences and workshops, a collection of ideas for creating case studies, a directory of educators involved in case-study teaching, and links to related web sites and journals.

2002-07-22

385

Ten Essentials for Character Education  

Science.gov (United States)

This essay asks and answers ten questions that the author believes can serve as a primer or heuristic for educators who are considering character education as a meaningful part of their pedagogical objectives in both the university core curriculum and specific disciplines. All of the questions and answers are premised around the key assertion that…

Rivers, Thomas M.

2004-01-01

386

Combining genetic association study designs: a GWAS case study.  

Science.gov (United States)

Genome-wide association studies (GWAS) explore the relationship between genome variability and disease susceptibility with either population- or family-based data. Here, we have evaluated the utility of combining population- and family-based statistical association tests and have proposed a method for reducing the burden of multiple testing. Unrelated singleton and parent-offspring trio cases and controls from the Genetics of Kidneys in Diabetes (GoKinD) study were analyzed for genetic association with diabetic nephropathy (DN) in type 1 diabetics (T1D). The Cochran-Armitage test for trend and the family-based association test were employed using either unrelated cases and controls or trios, respectively. In addition to combining single nucleotide polymorphism (SNP) p-values across these tests via Fisher's method, we employed a novel screening approach to rank SNPs based on conditional power for more efficient testing. Using either the population-based or family-based subset alone predictably limited resolution to detect DN SNPs. For 384,197 SNPs passing quality control (QC), none achieved strict genome-wide significance (1.4 × 10(-7)) using 1171 singletons (577/594 cases/controls) or 1738 pooled singletons and offspring probands (841/897). Similarly, none of the 352,004 SNPs passing QC in 567 family trios (264/303 case/control proband trios) reached genome-wide significance. Testing the top 10 SNPs ranked using aggregated conditional power resulted in two SNPs reaching genome-wide significance, rs11645147 on chromosome 16 (p = 1.74 × 10(-4) family-based data may help to uncover associations otherwise difficult to detect in the presence of massive multiple testing corrections. Capitalizing on the strengths of both types while using screening approaches may be useful especially in light of large-scale, next-generation sequencing and rare variant studies. PMID:24098305

Estus, Janice L; Fardo, David W

2013-01-01

387

EST Case Studies and Perspectives in Japan  

International Nuclear Information System (INIS)

Results and discussion of the Environmentally Sustainable Transport (EST) Case Study for Japan are introduced within this paper. According to procedures defined in the EST project by the OECD, the targets for a major reduction of environmental load within the transport sector are defined to be CO2, NOx, PM, and VOC. Three scenarios to accomplish these reduction targets, with respect to these environmental loads are detailed: a techno-optimistic scenario (EST1), a transport demand management scenario (EST2), and a composite scenario (EST3). All of the scenarios are examined and compared to the business-as-usual (BAU) scenario. Policy instruments to realize these scenarios and their socio-economic impacts were, to date, not assessed within the study. Utilizing a 'back casting' methodology, expected changes in technology and transport behavior in order to meet an ultimate target of emissions reduction were examined by each of the scenarios. The objective areas consisted of a national study, encompassing the whole of Japan, and a regional (Aichi prefecture) study. The forecasts indicate that CO2 emissions increase by about 10% in Japan but are almost stable in Aichi prefecture. NOx and HC emissions in 2030 are about half, and PM emissions around one quarter of those in 1990 in Aichi prefecture. The results of the back casting indicate that CO2 and NOx reduction targets have severely restrictive conditions. The achievement of targets utilizing only EST1 and EST2 is totallyts utilizing only EST1 and EST2 is totally unfeasible. Even in the combined EST3 scenario, and in light of current trends requirements must include strong recommendations for change such as the significant wide spread use of fuel cell vehicles and the reduction of freight transport demands, and hence the scenario still needs to be discussed further

388

Estudio de diez años sobre variedades de tumores de parótida en pediatría / Ten-year study on varieties of parotid tumors in pediatrics  

Scientific Electronic Library Online (English)

Full Text Available SciELO Cuba | Language: Spanish Abstract in spanish Los tumores de parótida en pediatría son infrecuentes, pues constituyen aproximadamente el 0,5 % de todos los cánceres. Se presentan, generalmente, como un aumento de volumen local y asintomático, otras veces se acompañan de dolor y signos inflamatorios. Se realizó un estudio retrospectivo, longitud [...] inal y descriptivo, para determinar la frecuencia y formas de presentación de los tumores de parótida diagnosticados en pacientes con edades comprendidas de 0 a 18 años, que han sido ingresados en el servicio de oncocirugía del Hospital "William Soler", entre febrero del año 2001 y diciembre de 2010, teniendo en cuenta: sexo, las formas de presentación, respuesta al tratamiento, así como las variantes histológicas presentadas, con el objetivo de dar a conocer estas variantes de tumores de parótida en pediatría, que, a pesar de ser infrecuentes, cuando se presentan constituyen un grupo de alto riesgo. Se diagnosticaron 7 pacientes, de los cuales 3 fueron adenomas pleomorfos, un adenocarcinoma, un carcinoma mucoepidermoide de la glándula, un linfoma de Hodgkin parotídeo y un tumor mixto con células atípicas de la glándula. El inicio de todos fue la presencia de una masa parotídea, en 6 de los casos asintomáticos, y en un caso con dolor local. Se le realizó ultrasonido de la glándula y biopsia aspirativa con aguja fina a todos los pacientes. El sexo masculino predominó sobre el femenino en una proporción 5 a 2, la edad media de presentación fue 12,3 años. La cirugía es el arma terapéutica principal en la mayoría de los casos. Se recomienda el seguimiento estrecho de los pacientes por el alto índice de recurrencia local. Abstract in english Parotid tumors are uncommon because they account for 0.5 % of all types of cancer in pediatrics. They generally occur as increased local asymptomatic volume, occasionally accompanied by pain and inflammatory signs. A retrospective, longitudinal and descriptive study was carried out to determine the [...] frequency and forms of presentation of parotid tumors diagnosed in 0-18 years-old patients, who had been admitted to the oncological surgery service of "William Soler" pediatric hospital from February 2001 to December 2010. The variables taken into account were sex, forms of presentation, response to treatment as well as the histological variants presented, with the objective of giving information about these variants of parotid tumors in pediatrics, which, despite their rareness, represent a high risk group when occur. Seven patients were diagnosed, of whom 3 were pleomorphic adenomas, one adenocarcinoma, one mucoepidermoid carcinoma of the gland, one parotid Hodgkin lymphoma and one mixed tumor with atypical cells of the gland. The onset of all the tumors was the presence of a parotid mass in 6 asymptomatic cases and in one case suffering local pain. They were all performed gland ultrasound and aspiration fine needle biopsy. Males prevailed over the females (ratio of 5:2) and the average age of presentation was 12.3 years. Surgery is the main therapeutic weapon in most of cases. It was recommended to closely follow the patients because of their high rate of local recurrence.

Caridad, Verdecia Cañizares; Osiris, Cubero Meléndez; Magda, Alonso Pírez; Andrés Manuel, Portugués Díaz.

2012-06-01

389

Case Study on Printed Matter in Denmark  

DEFF Research Database (Denmark)

The implementation of the EU REACH regulation will most probably promote substitution within sectors handling a lot of different chemicals such as the printing industry. With the aim of being at the cutting edge of this development, the Danish printing industry started up a substitution project in 2006. A major part of the work has been mapping the presence of chemicals, which are the potential candidates for substitution (e.g., PBT, CMR, vPvB, EDS). The mapping comprises a combination of a literature study and an investigation of the actual (2007) presence of candidate substances at 15 Danish printing houses including the examination of almost 900 MSDSs (i.e., products). Furthermore, a focused search in the Danish Product Register has been included. More than 200 of the mapped substances are candidates for substitution according to Danish legislation (List of Undesirable Substances) and about 60 of these substances fulfill one or more of the criteria (e.g., CMR, EDS) for the REACH Annex XIV candidate list (Authorisation List). This case study presents the results of the mapping of chemical substitution candidates some of which may be relevant regarding accumulation of additives/impurities in globally recycled paper.

Larsen, Henrik Fred

2012-01-01

390

Odontoma: a retrospective study of 73 cases  

Energy Technology Data Exchange (ETDEWEB)

The purpose of the present study was to retrospectively evaluate the clinical findings and treatment results for impacted permanent teeth associated with odontomas. We retrospectively investigated 73 odontomas in 72 patients who visited Kyungpook National University Dental Hospital from April 2004 through November 2011. The study was performed using medical records, panoramic radiographs, and pathological reports. Data gathered included age, gender, location, chief complaints, effects on dentition, and treatment of odontoma and the impacted tooth associated with odontoma. Most compound odontomas (46.7%) were found in the second decade and complex odontomas were not related to age. Odontomas showed no gender predilection. Fifty-five cases (75.3%) of odontomas were detected on routine dental radiographs. Sixty percent of compound odontomas occurred in the canine area and 57.1% of complex odontomas in the molar areas. Impaction of permanent teeth (61.6%) was the most common complication on the adjacent teeth. Most odontomas (84.9%) were removed surgically and impacted permanent teeth were managed by surgical removal (53.2%), orthodontic treatment (25.5%), or surgical repositioning (6.4%). There was a statistically significant relation between age and preservation of the impacted permanent teeth associated with odontomas (p<0.01). Early detection and treatment of odontomas increase the possibility of preservation of the impacted tooth. Therefore, it would be suggested that periodic panoramic examination during the first and second decade of life might be beneficial for the early detection and better prognosis of odontomas.

An, Seo Young; An, Chang Hyeon; Choi, Karp Shik [School of Dentistry, Kyungpook National University, Daegu (Korea, Republic of)

2012-06-15

391

Antineutrino reactor safeguards - a case study  

CERN Document Server

Antineutrinos have been proposed as a means of reactor safeguards for more than 30 years and there has been impressive experimental progress in neutrino detection. In this paper we conduct, for the first time, a case study of the application of antineutrino safeguards to a real-world scenario - the North Korean nuclear crisis in 1994. We derive detection limits to a partial or full core discharge in 1989 based on actual IAEA safeguards access and find that two independent methods would have yielded positive evidence for a second core with very high confidence. To generalize our results, we provide detailed estimates for the sensitivity to the plutonium content of various types of reactors, including most types of plutonium production reactors, based on detailed reactor simulations. A key finding of this study is that a wide class of reactors with a thermal power of less than 0.1-1 GWth can be safeguarded achieving IAEA goals for quantitative sensitivity and timeliness with detectors right outside the reactor ...

Christensen, Eric; Jaffke, Patrick

2013-01-01

392

Go with the flow: A case study  

International Nuclear Information System (INIS)

Full text: A 55-year-old female presented to the Alfred Emergency Department semi-conscious with frank rectal bleeding requiring blood volume replacement. Labelled red blood cell (RBC) scintigraphy was requested in order to locate the site of bleeding. In vitro labelling of 3 mL of patient''s blood was performed (PYP as a diluted tinning agent and 1 GBq of freshly eluted 99mTc) and suspended red cells were injected. Using a GE Starcam system with high resolution collimation, images were acquired for 30 seconds (2 s per frame) and thereafter continuously for 1. 5 hours (30 s per frame). During imaging, patient history became available revealing portal hypertension, oesophageal and anal varices due to myelofibrosis and previous cholecystectomy. Initial flow images showed bizarre abdominal collateral vessels. Accumulation of labelled RBC over 1.5 hours in the right upper quadrant indicated the hepatic flexure as the site of bleeding. The initial flow study showing major porto-systemic collateral vessels indicated that therapeutic embolisation via angiography would be life threatening. The patient underwent emergency hemicolectomy and has been bleed-free to date. In this case, delayed RBC scintigraphy accurately located the haemorrhage site. However, the initial flow study demonstrating major vessel collateral flow was crucial in contraindicating angiographic embolisation. Surgery was then the only therapeutic option

393

Go with the flow: A case study  

Energy Technology Data Exchange (ETDEWEB)

Full text: A 55-year-old female presented to the Alfred Emergency Department semi-conscious with frank rectal bleeding requiring blood volume replacement. Labelled red blood cell (RBC) scintigraphy was requested in order to locate the site of bleeding. In vitro labelling of 3 mL of patient``s blood was performed (PYP as a diluted tinning agent and 1 GBq of freshly eluted {sup 99}mTc) and suspended red cells were injected. Using a GE Starcam system with high resolution collimation, images were acquired for 30 seconds (2 s per frame) and thereafter continuously for 1. 5 hours (30 s per frame). During imaging, patient history became available revealing portal hypertension, oesophageal and anal varices due to myelofibrosis and previous cholecystectomy. Initial flow images showed bizarre abdominal collateral vessels. Accumulation of labelled RBC over 1.5 hours in the right upper quadrant indicated the hepatic flexure as the site of bleeding. The initial flow study showing major porto-systemic collateral vessels indicated that therapeutic embolisation via angiography would be life threatening. The patient underwent emergency hemicolectomy and has been bleed-free to date. In this case, delayed RBC scintigraphy accurately located the haemorrhage site. However, the initial flow study demonstrating major vessel collateral flow was crucial in contraindicating angiographic embolisation. Surgery was then the only therapeutic option.

Moran, J.A. [Alfred Hospital, Prahran, VIC (Australia)

1998-03-01

394

Biotechnology research in Venezuela: Five case studies  

Scientific Electronic Library Online (English)

Full Text Available SciELO Chile | Language: English Abstract in english The organization of biotechnology differs across countries. The structure of the industry, the academia, and the links between these two sectors vary according to which country is studied. Biotechnology is organized in Venezuela mainly around the research done by special research and development uni [...] ts at national universities. The paper describes some of these units in order to shed light about their performance. Two economic approaches are used to explain the academic production of these biotech research organizations: the technological and organizational approaches. A case study methodology is used in this research. The results can be summarized as: The percentage of researchers who are doctors is less than seventy percent in each research and development unit, funding source comes basically from the Venezuelan government, strategic alliances are mainly formed between universities, performance of research and development units is mostly oriented to research but not to development . The main conclusion of this paper is that the research and development organizations are only carrying out the research function because (i) the low number of doctors, (ii) the few number of strategic alliances with the private sector and (iii) the form the research and development units finance themselves.

Rosa, Morales.

2006-10-15

395

Ten Tips to Improve Indoor Air Quality  

Science.gov (United States)

... Effective Disinfection Ten Tips to Improve Indoor Air Quality If you don’t use a toxic chemical ... Tip Sheets Ten Tips to Improve Indoor Air Quality (English) >> Ten Tips to Improve Indoor Air Quality ( ...

396

Do case studies mislead about the nature of reality?  

OpenAIRE

This paper attempts a partial, critical look at the construction and use of case studies in ethics education. It argues that the authors and users of case studies are often insufficiently aware of the literary nature of these artefacts: this may lead to some confusion between fiction and reality. Issues of the nature of the genre, the fictional, story-constructing aspect of case studies, the nature of authorship, and the purposes and uses of case studies as "texts" are outlined and discussed....

Pattison, S.; Dickenson, D.; Parker, M.; Heller, T.

1999-01-01

397

Study on the correlation between spiral CT features and expression of phosphatase and tensin homology deleted on chromosome ten, basic fibroblast growth factor in gastric carcinoma  

International Nuclear Information System (INIS)

Objective: To investigate the spiral CT features of gastric carcinoma in the invasion and metastasis and its correlation with the expression of phosphatase and tensin homology deleted on chromosome ten (PTEN) and basic fibroblast growth factor (bFGF). Methods: Spiral CT plain scan and triphasic enhanced scans were performed in 83 patients. The postoperative specimens were embedded with paraffin to obtain 5 ?m thickness tissues and stained with HE and immunohistochemistry. Spiral CT findings were compared with the expression of phosphatase and tensin homology deleted on chromosome ten (PTEN) and basic fibroblast growth factor (bFGF). Results: (1) The accuracy of spiral CT in T and N staging of gastric carcinoma was 94.0% (78/83) and 89.2% (74/83), respectively. (2) The expression of PTEN was 47.0% (39/83) in gastric carcinoma. The expression of PTEN in T3-4(40.8%, 29/71) and N1+2 (38.3%, 23/60) gastric carcinoma was significantly lower than that of T2(10/12) and N0 (16/23)gastric carcinoma, respectively (?2=7.439, P=0.006; ?2=6.511, P=0.011). (3) The expression of bFGF was 63.9% (53/83) in gastric carcinoma. The expression of bFGF in T3-4 (70.4%, 50/71 )and N1+2 (71.7%, 43/60) gastric carcinoma was significantly higher than that of T2(3/12) and N0(10/23) gastric carcinoma, respectively (?2=7.314, P=0.007; ?2=5.724, P=0.017). (4) Both up>2=5.724, P=0.017). (4) Both PTEN-positive expression and bFGF-positive expression were detected in 16 specimens. The expression of PTEN (41.0%, 16/39) was negatively correlated with that of bFGF (30.2%, 16/53) (r=-0.447, P=0.000). Conclusion: Spiral CT triphasic enhanced scans combined with biologic characteristics can improve diagnostic accuracy of gastric carcinoma in the invasion, metastasis and prognosis. (authors)

398

Elegant solutions ten beautiful experiments in chemistry  

CERN Document Server

Devising and performing a scientific experiment is an art, and it is common to hear scientists talk about the 'beauty' of an experiment. What does this mean in chemistry, the experimental science par excellence? And what are the most beautiful chemical experiments of all time? This book offers ten suggestions for where beauty might reside in experimental chemistry. In some cases the beauty lies in the clarity of conception; sometimes it is a feature of the instrumental design. But for chemistry, there can also be a unique beauty in the way atoms are put together to make new molecules, substanc

Ball, Philip

2005-01-01

399

Arsenic Removal: Adsorptive Media and Coagulation/Filtration Case Studies  

Science.gov (United States)

This presentation provides information on the results of three case studies from USEPA arsenic demonstration program. The first case study presented is on the Rimrock, AZ project that used an adsorptive media technology (E33 media) to remove arsenic. The second case study is on...

400

Case Study Research in Software Engineering Guidelines and Examples  

CERN Document Server

Based on their own experiences of in-depth case studies of software projects in international corporations, in this book the authors present detailed practical guidelines on the preparation, conduct, design and reporting of case studies of software engineering.  This is the first software engineering specific book on the case study research method.

Runeson, Per; Rainer, Austen; Regnell, Bjorn

2012-01-01

401

Ten past and ten future GAS/MAUS-payloads  

Science.gov (United States)

MAUS (materials science autonomous experiments) is one out of a series of flight opportunities which the Space Program of West Germany offers to scientists from the disciplines of materials research and processing for performing materials science investigations under microgravity conditions. Up to now, ten MAUS experiments were flown which were dealing with the following scientific topics: decomposition of binary alloys with miscibility gap in the liquid state, interaction of a solidification front with dispersed particles, critical Marangoni number, investigation of the magnetic compound MnBi, shrinkage of gas bubbles in glass melts and slip casting. The ten future experiments are partly reflights with modification of the scientific objectives as well as new experiments in the fields of chemical reactions, heat transfer, glass technology and Ostwald ripening. Looking to ten flown payloads, the peculiarities of instrument technology in GAS-cans and its evolution is discussed with emphasis on structure, electronics and thermal design. A typical modern payload using 100 percent of the resource is presented.

Staniek, S.; Otto, G.; Doepkess, J.

1988-01-01

402

Engaged Learning and Change through Undergraduate Research: A Case Study of the Heart of Gold Community Empowerment Project  

OpenAIRE

The focus of this paper is to describe a best-practice undergraduate research-involved case study of the Heart of Gold Rural Community Empowerment Project (HG) that has demonstrated significant gains in social and economic capital over the last ten years. The HG is an international community-university research alliance between the Farm and Agro-tourism Association of Los Santos (FAALS) cooperative in Costa Rica and Vancouver Island University (VIU) in Canada that uses cooperative inquiry met...

David William Robinson; Laureen Styles, J.; Nichola Evernden; Kassandra Kirkham

2013-01-01

403

The usability of green building rating systems in hot arid climates: A case study in Siwa, Egypt  

OpenAIRE

In the last ten years there has been a proliferation of regional building rating systems across the Middle East (ME). Most those emerging rating systems and labels emulate the British and American rating systems BREEAM and LEED that emerged in industrial countries context with an impact reduction paradigm. Thus they are neglecting the local historic, climatic, economic, technological, cultural and social context of the ME. This paper presents a case study of a recently constructed eco-lodge,...

Attia, Shady; Dabaieh, Marwa

2013-01-01

404

Case studies in post-prostatectomy complications  

OpenAIRE

As part of the program at the 3rd Annual Canadian Urology Forum (2013), participants engaged in interactive discussions of difficult cases throughout the event. The following is a summary of discussions pertaining to two challenging cases illustrating the management of complications, subsequent to radical prostatectomy.

Bailly, Greg

2013-01-01

405

Environmental injustice: case studies from the South  

International Nuclear Information System (INIS)

We selected three case studies to illustrate environmental injustice issues in the South. These examples relate to migrant agricultural workers, the maquiladora industry and artisanal mining, while reviewing some of the major mechanisms involved, e.g. multinational corporations, the development of free trade zones, multilateral free trade agreements and the export of hazards. A series of strategies are discussed in order to address environmental injustice and health disparities that exist on a global scale. Some of the recommendations involve policy initiatives; others, such as research and mentorship, fall within the traditional domain of public health practice. In this paper, special attention is given to concerned environmental and occupational health professionals using evidence-based data for advocacy. For lasting changes to be made, however, stronger institutions and legislation are required. Those who have the 'right to know' about environmental injustice issues include communities of concern, workers' representatives and lawyers. Government officials and company officials may eventually work on the basis of conflict resolution, compensation and remediation, to quote some examples. Systematic approaches to protect both the environment and public health must be updated

406

Comparative economic analysis: Anaerobic digester case study  

International Nuclear Information System (INIS)

An economic guide is developed to assess the value of anaerobic digesters used on dairy farms. Two varieties of anaerobic digesters, a conventional mixed-tank mesophilic and an innovative earthen psychrophilic, are comparatively evaluated using a cost-effectiveness index. The two case study examples are also evaluated using three other investment merit statistics: simple payback period, net present value, and internal rate of return. Life-cycle savings are estimated for both varieties, with sensitivities considered for investment risk. The conclusion is that an earthen psychrophilic digester can have a significant economic advantage over a mixed-tank mesophilic digester because of lower capital cost and reduced operation and maintenance expenses. Because of this economic advantage, additional projects are being conducted in North Carolina to increase the rate of biogas utilization. The initial step includes using biogas for milk cooling at the dairy farm where the existing psychrophilic digester is located. Further, a new project is being initiated for electricity production with thermal reclaim at a swine operation

407

Case study for a vaccine against leishmaniasis.  

Science.gov (United States)

Leishmaniasis in many ways offers a unique vaccine case study. Two reasons for this are that leishmaniasis is a disease complex caused by several different species of parasite that are highly related, thus raising the possibility of developing a single vaccine to protect against multiple diseases. Another reason is the demonstration that a leishmaniasis vaccine may be used therapeutically as well as prophylactically. Although there is no registered human leishmaniasis vaccine today, immunization approaches using live or killed organisms, as well as defined vaccine candidates, have demonstrated at least some degree of efficacy in humans to prevent and to treat some forms of leishmaniasis, and there is a vigorous pipeline of candidates in development. Current approaches include using individual or combined antigens of the parasite or of salivary gland extract of the parasites' insect vector, administered with or without formulation in adjuvant. Animal data obtained with several vaccine candidates are promising and some have been or will be entered into clinical testing in the near future. There is sufficient scientific and epidemiological justification to continue to invest in the development of vaccines against leishmaniasis. PMID:23598489

Alvar, Jorge; Croft, Simon L; Kaye, Paul; Khamesipour, Ali; Sundar, Shyam; Reed, Steven G

2013-04-18

408

Environmental injustice: case studies from the South  

Science.gov (United States)

We selected three case studies to illustrate environmental injustice issues in the South. These examples relate to migrant agricultural workers, the maquiladora industry and artisanal mining, while reviewing some of the major mechanisms involved, e.g. multinational corporations, the development of free trade zones, multilateral free trade agreements and the export of hazards. A series of strategies are discussed in order to address environmental injustice and health disparities that exist on a global scale. Some of the recommendations involve policy initiatives; others, such as research and mentorship, fall within the traditional domain of public health practice. In this paper, special attention is given to concerned environmental and occupational health professionals using evidence-based data for advocacy. For lasting changes to be made, however, stronger institutions and legislation are required. Those who have the 'right to know' about environmental injustice issues include communities of concern, workers' representatives and lawyers. Government officials and company officials may eventually work on the basis of conflict resolution, compensation and remediation, to quote some examples. Systematic approaches to protect both the environment and public health must be updated.

Cifuentes, Enrique; Frumkin, Howard

2007-10-01

409

CFD analysis for road vehicles - case study  

Directory of Open Access Journals (Sweden)

Full Text Available This is a case study on the influence of the lower part of road vehicles on the global drag characteristics. Reducing overall drag by redesigning the lower part of the road vehicles has a potential of almost 20% in the overall drag breakdown, mainly due to the viscous effects and the fluidic interaction of the flow under the car with the typical bluff body flow pattern behind the vehicle. A special parameterization is proposed for the global shape of the sedan car, with respect to the lower part of the body, taking into account most of the specificities of the system. For such a complex interaction, CFD analysis is probably the only efficient tool in order to assess specific design parameterization of a generic car shape. Building on the credibility of such instruments is one of the major goals of this paper. Also, with respect to a target sedan car configuration, examples of successful design strategies are presented. Based on the CFD results, possible strategies to be used in order to reduce viscous drag and global drag characteristics are proposed.

Eugen Mihai NEGRUS

2011-09-01

410

Case studies: Redevelopment of former industrial sites  

International Nuclear Information System (INIS)

This paper presents the case studies of the redevelopment of two sites: Herr's Island, located in the Allegheny River in Pittsburgh, Pennsylvania and the Union Pacific Resources Company's site located near the Port of Long Beach in Wilmington, California. The common goal in cleaning up both sites is the transformation of environmentally unsound property into flourishing residential and commercial use. Herr's Island site has included a petroleum refinery, an asphalt plant, pipe mills, a meat packing plant, and a transformer dismantling facility. A small portion of the island was investigated as part of a Phase 2 audit. The investigation identified contamination in the southern portion of the island with maximum polynuclear aromatic hydrocarbon (PAH) and polychlorinated biphenyl (PCB) concentrations in soils at 40 and 200 parts per million (ppm), respectively. The Union Pacific Resources Company (UPRC) site, located in Wilmington, California, is situated within a 600-acre oil field production area. A phased remedial investigation (RI) of the site was initiated in 1991 pursuant to a consent agreement between UPRC and the California Department of Toxic Substances Control (DTSC). The RI identified the presence of volatile organic compounds (VOCs), semi-volatile organic compounds, chlorinated pesticides, PAHs, PCBs and metals at various concentrations throughout the soils. VOCs and metals were also detected in the groundwater. In particular, arsenic, benzene, vinyl chloriderticular, arsenic, benzene, vinyl chloride, and mercury were encountered at concentration levels at, or slightly above, drinking water standards in a few samples

411

Jazz improvisers' shared understanding: a case study.  

Science.gov (United States)

To what extent and in what arenas do collaborating musicians need to understand what they are doing in the same way? Two experienced jazz musicians who had never previously played together played three improvisations on a jazz standard ("It Could Happen to You") on either side of a visual barrier. They were then immediately interviewed separately about the performances, their musical intentions, and their judgments of their partner's musical intentions, both from memory and prompted with the audiorecordings of the performances. Statements from both (audiorecorded) interviews as well as statements from an expert listener were extracted and anonymized. Two months later, the performers listened to the recordings and rated the extent to which they endorsed each statement. Performers endorsed statements they themselves had generated more often than statements by their performing partner and the expert listener; their overall level of agreement with each other was greater than chance but moderate to low, with disagreements about the quality of one of the performances and about who was responsible for it. The quality of the performances combined with the disparities in agreement suggest that, at least in this case study, fully shared understanding of what happened is not essential for successful improvisation. The fact that the performers endorsed an expert listener's statements more than their partner's argues against a simple notion that performers' interpretations are always privileged relative to an outsider's. PMID:25152740

Schober, Michael F; Spiro, Neta

2014-01-01

412

Jazz improvisers’ shared understanding: A case study  

Directory of Open Access Journals (Sweden)

Full Text Available To what extent and in what arenas do collaborating musicians need to understand what they are doing in the same way? Two experienced jazz musicians who had never previously played together played three improvisations on a jazz standard (“It Could Happen to You” on either side of a visual barrier. They were then immediately interviewed separately about the performances, their musical intentions, and their judgments of their partner’s musical intentions, both from memory and prompted with the audiorecordings of the performances. Statements from both (audiorecorded interviews as well as statements from an expert listener were extracted and anonymized. Two months later, the performers listened to the recordings and rated the extent to which they endorsed each statement. Performers endorsed statements they themselves had generated more often than statements by their performing partner and the expert listener; their overall level of agreement with each other was greater than chance but moderate to low, with disagreements about the quality of one of the performances and about who was responsible for it. The quality of the performances combined with the disparities in agreement suggest that, at least in this case study, fully shared understanding of what happened is not essential for successful improvisation. The fact that the performers endorsed an expert listener’s statements more than their partner’s argues against a simple notion that performers’ interpretations are always privileged relative to an outsider’s.

MichaelF.Schober

2014-08-01

413

VINCRISTINE INDUCED NEUROTOXICITY: STUDY OF 75 CASES  

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Full Text Available ObjectiveConcern for side-effects of therapy related to treatment of childhood malignancies is becoming an increasingly important topic. In this study, we evaluated extent of vincristine (VCR induced neurotoxicity in a group of children who underwent chemotherapy, with VCR being part of the regimen.Materials & MethodsIn this investigation, for 75 children (54% boys, 46% girls, aged between 1 to 14 (mean 6.5±4.3 years, serial weekly neurological examinations were performed; of the 75, 70 had acute lymphoblastic leukemia and 5 Wilm's tumor. All patients were on a chemotherapy protocol of at least 4 consecutive VCR (1.5mg/m2 injections.ResultsDecreased deep tendons reflexes were seen in the Achilles reflex in 78%, and the patellar reflex in 53% of patients. Muscle weakness was found in 70% of patients, being mild in 76% of them. Four percent of patients showed severe weakness. Petosis, jaw pain, hoarseness, abdominal pain and constipation were seen in 15%, 6%, 12%, 12% and 12% respectively. Paresthesia was observed in 32 of 52 patients, over 4 years old. No cases of foot drop, urinary retention or facial nerve palsy were seen in this patient group.ConclusionChildren on usual doses of vincristine regimen may have neuropathic side effects but most of these side effects are mild and not troublesome.

M.T. Arzanian

2009-06-01

414

A case study in coastal flooding analysis  

Science.gov (United States)

Floods are among the most frequent and costly natural disasters in terms of human hardship and economic loss. Depending on topography, soil condition, ground cover, human settlements and other factors, flood can produce catastrophic impacts both in terms of damages and modification of the landscape. The Salerno province experienced numerous flooding events after heavy thunderstorm, that triggered intense landslides (debris-mudflow), inundations, denudation, shore line progradation, etc. Recent study (Porfido et al. 2009) show that in this area more than 100 flooding events occurred since 1500. Among these four events have been estimate in the maximum severity class. Research into the historical flooding highlights the case of the event of 11 November 1773 as one of the major flooding occurred in Cava de' Tirreni, Campanian region, Southern Italy. About 400 - 450 people died; severe damage to the buildings were registered in a wide area of the Salerno province; several mud flows invested large areas of coastal territory which caused progradation phenomena of the shoreline of several hundreds of meters. The main objectives of this paper are: the historical reconstruction of the event considering contemporary documents found at Archives and National Libreries; characterization of the rainfall timing using historical descriptions; delimitation of inundated area; distribution of damage levels and identification and classification of flood-induced geological phenomena.

Esposito, E.; Porfido, S.; Santoro, G.; Violante, C.; Foscari, G.; Sciarrotta, S.; Alaia, F.

2009-04-01

415

Bayesian inference in physics: case studies  

International Nuclear Information System (INIS)

This report describes the Bayesian approach to probability theory with emphasis on the application to the evaluation of experimental data. A brief summary of Bayesian principles is given, with a discussion of concepts, terminology and pitfalls. The step from Bayesian principles to data processing involves major numerical efforts. We address the presently employed procedures of numerical integration, which are mainly based on the Monte Carlo method. The case studies include examples from electron spectroscopies, plasma physics, ion beam analysis and mass spectrometry. Bayesian solutions to the ubiquitous problem of spectrum restoration are presented and advantages and limitations are discussed. Parameter estimation within the Bayesian framework is shown to allow for the incorporation of expert knowledge which in turn allows the treatment of under-determined problems which are inaccessible by the traditional maximum likelihood method. A unique and extremely valuable feature of Bayesian theory is the model comparison option. Bayesian model comparison rests on Ockham's razor which limits the complexity of a model to the amount necessary to explain the data without fitting noise. Finally we deal with the treatment of inconsistent data. They arise frequently in experimental work either from incorrect estimation of the errors associated with a measurement or alternatively from distortions of the measurement signal by some unrecognized spurious source. Bayesian data analysis d spurious source. Bayesian data analysis sometimes meets with spectacular success. However, the approach cannot do wonders, but it does result in optimal robust inferences on the basis of all available and explicitly declared information

416

Case Study on social software in distributed working environments  

OpenAIRE

This document outlines four different case studies on the use of Social Software in distributed working environments. While two case studies focus on the corporate world, two other case studies look at the use of Social Software in academic workplaces. The concluding remarks identify some common benefits as well as issues with the use of Social Software and to derive some further research challenges from the different cases. The findings for future research need to be directed towards strateg...

Kieslinger, Barbara; Hofer, Margit; Cao, Yiwei; Ehms, Karsten; Fiedler, Sebastian; Kairamo, Anna-kaarina; Klamma, Ralf; Krause, Beate; Kravcik, Milos; Ryyppo?, Tommi; Spaniol, Marc; Stumme, Gerd; Wild, Fridolin

2007-01-01

417

Real or Illusory? Case Studies on the Public Perception of Environmental Health Risks in the North West of England  

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Full Text Available Applied research in a public health setting seeks to provide professionals with insights and knowledge into complex environmental issues to guide actions that reduce inequalities and improve health. We describe ten environmental case studies that explore the public perception of health risk. We employed logical analysis of components of each case study and comparative information to generate new evidence. The findings highlight how concerns about environmental issues measurably affect people’s wellbeing and led to the development of new understanding about the benefits of taking an earlier and more inclusive approach to risk communication that can now be tested further.

Richard Jarvis

2010-03-01

418

Do case studies mislead about the nature of reality?  

Science.gov (United States)

This paper attempts a partial, critical look at the construction and use of case studies in ethics education. It argues that the authors and users of case studies are often insufficiently aware of the literary nature of these artefacts: this may lead to some confusion between fiction and reality. Issues of the nature of the genre, the fictional, story-constructing aspect of case studies, the nature of authorship, and the purposes and uses of case studies as "texts" are outlined and discussed. The paper concludes with some critical questions that can be applied to the construction and use of case studies in the light of the foregoing analysis. PMID:10070638

Pattison, S; Dickenson, D; Parker, M; Heller, T

1999-02-01

419

Noble Power in Ten Middle English Romances  

OpenAIRE

This research explores the depiction of the nobility in ten romances composed in the thirteenth, fourteenth and fifteenth centuries. It looks into the extent of the nobility’s power in these texts, and the ways in which this power is evoked. It is likely the first study to use a theoretical framework based on the work of the sociologist Michael Mann in the analysis of Middle English literature. Mann’s theory distinguishes between four forms of social power: economic, military, ideological...

Iersel, G. F. M.

2010-01-01

420

IIA/IIB supergravity and ten-forms  

OpenAIRE

We perform a careful investigation of which p-form fields can be introduced consistently with the supersymmetry algebra of IIA and/or IIB ten-dimensional supergravity. In particular the ten-forms, also known as "top-forms", require a careful analysis since in this case, as we will show, closure of the supersymmetry algebra at the linear level does not imply closure at the non-linear level. Consequently, some of the (IIA and IIB) ten-form potentials introduced in earlier work...

Bergshoeff, Eric A.; Hartong, Jelle; Howe, J. S.; Orti?n Miguel, Toma?s; Riccioni, Fabio

2010-01-01

421

Treating Ed A Medical Ethics Case Study  

Science.gov (United States)

Ed is dying. How should his wishes for medical treatment be carried out? As the case unfolds, students explore the rights and responsibilities of doctors, patients, and patient representatives regarding difficult medical decisions. Specifically, students consider the ramifications of Advance Directives and Durable Powers of Attorney. The case was written for an introductory biology course, but could easily be used in or modified for a human anatomy and physiology, introductory nursing, or medical ethics course.

Eric Ribbens

2008-01-01

422

Brazilian oil spills chemical characterization : case studies  

International Nuclear Information System (INIS)

The Petrobras Research Centre has been active in responding to some significant oil spills in Brazil in the past decade. The centre has characterized spilled oil, monitored the affected ecosystems and determined the fate of oil in the environment. This paper described the use of some advanced chemical analytical techniques used in Brazilian oil spill studies to determine fractions and individual petroleum hydrocarbons in water, groundwater, sediment, sand, fish and the spilled oil itself. Some of the most recent oil spill cases were discussed in terms of chemical characterization of the spilled oil and the environmental samples from different matrices of the affected ecosystems for determining the fate of the oil in the environment and to assess environmental damage. In particular, methods such as gas chromatography/flame ionization detector, P and T/GC/PID and gas chromatography/mass spectrometry have been used to examine crude and fuel oil spills in Guanabara Bay, Barigui and Iguassu Rivers, and the Sao Sebastiao Channel. The chemical analytical methods are used to determine total petroleum hydrocarbons, n-alkanes, isoprenoids, unresolved complex mixtures, volatile monoaromatic compounds such as BTEX (benzene, toluene, ethylbenzene and xylenes), as well as parent and alkylated homologues polycyclic aromatic hydrocarbons (PAH) and terpanes and steranes. Acute ecotoxicity data for water and sediment samples was also included. It was determined that with certain limitaIt was determined that with certain limitations, PAH ratios can help determine the origin of hydrocarbons as being either petrogenic or pyrolytic. However, alkylated PAH homologues and parent compounds such as dibenzothiophene and perylene give more precise interpretation of the data. 30 refs., 9 tabs., 11 figs

423

Brazilian oil spills chemical characterization : case studies  

Energy Technology Data Exchange (ETDEWEB)

The Petrobras Research Centre has been active in responding to some significant oil spills in Brazil in the past decade. The centre has characterized spilled oil, monitored the affected ecosystems and determined the fate of oil in the environment. This paper described the use of some advanced chemical analytical techniques used in Brazilian oil spill studies to determine fractions and individual petroleum hydrocarbons in water, groundwater, sediment, sand, fish and the spilled oil itself. Some of the most recent oil spill cases were discussed in terms of chemical characterization of the spilled oil and the environmental samples from different matrices of the affected ecosystems for determining the fate of the oil in the environment and to assess environmental damage. In particular, methods such as gas chromatography/flame ionization detector, P and T/GC/PID and gas chromatography/mass spectrometry have been used to examine crude and fuel oil spills in Guanabara Bay, Barigui and Iguassu Rivers, and the Sao Sebastiao Channel. The chemical analytical methods are used to determine total petroleum hydrocarbons, n-alkanes, isoprenoids, unresolved complex mixtures, volatile monoaromatic compounds such as BTEX (benzene, toluene, ethylbenzene and xylenes), as well as parent and alkylated homologues polycyclic aromatic hydrocarbons (PAH) and terpanes and steranes. Acute ecotoxicity data for water and sediment samples was also included. It was determined that with certain limitations, PAH ratios can help determine the origin of hydrocarbons as being either petrogenic or pyrolytic. However, alkylated PAH homologues and parent compounds such as dibenzothiophene and perylene give more precise interpretation of the data. 30 refs., 9 tabs., 11 figs.

Meniconi, M.F.G.; Gabardo, I.T.; Carneiro, M.E.R. [Petrobras Cenpes, Rio de Janeiro (Brazil); Barbanti, S.M. [Pontificia Universidad Catolica Foundation, Rio de Janeiro (Brazil); Silva, G.C.; Massone, C.G. [Gorceix Foundation, Rio de Janeiro (Brazil)

2002-07-01

424

Erythroderma: A clinical study of 97 cases  

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Full Text Available Abstract Background Erythroderma is a rare skin disorder that may be caused by a variety of underlying dermatoses, infections, systemic diseases and drugs. Methods We reviewed the clinical, laboratory and biopsy material of 97 patients diagnosed with erythroderma who were treated in our department over a 6-year period (1996 through 2002. Results The male-female ratio was 1.85:1. The mean age at diagnosis was 46.2 years. The most common causative factors were dermatoses (59.7%, followed by drug reactions (21.6%, malignancies (11.3% and idiopathic causes (7.2%. Carbamazepine was the most common drug (57.1%. The best clinicopathologic correlation was found in cutaneous T-cell lymphoma and pityriasis rubra pilaris related erythroderma. Apart from scaling and erythema that were present in all patients, pruritus was the most common finding (97.5%, followed by fever (33.6%, lymphadenopathy (21.3%, edema (14.4% and hyperkeratosis (7.2%. Conclusion This study outlines that underlying etiologic factors of erythroderma may show geographic variations. Our series had a high percentage of erythroderma secondary to preexisting dermatoses and a low percentage of idiopathic cases. There was no HIV-infected patient among our series based on multiple serum antibody tests. The clinical features of erythroderma were identical, irrespective of the etiology. The onset of the disease was usually insidious except in drug-induced erythroderma, where it was acute. The group associated with the best prognosis was that related to drugs.

Toosi Siavash

2005-05-01

425

A Case Study Model for Augmentative and Alternative Communication Outcomes  

Science.gov (United States)

Case studies are an accepted method for reporting treatment outcomes. However, to be useful and authentic, a systematic and principled approach to collecting, analyzing, and reporting case data must be observed. This paper proposes a basic case study format for documenting augmentative and alternative communication (AAC) intervention to ensure…

Hill, Katya

2006-01-01

426

Case Study: Bad Fish: Human Anatomy and Physiology Edition  

Science.gov (United States)

This is a case study for high school and undergraduate students in anatomy, physiology, and/or anatomy and physiology courses. In particular this case study explores anatomy and physiology associated with the nervous system. Users of the National Center for Case Study Teaching in Science will be required to register (free) to gain access to the answer key (and must be of teaching status to receive the key). Included in the resource are the case overview, objectives, case study, teaching notes and answer key.

James Hewlett (Finger Lakes Community College Science and Technology)

2003-04-13

427

Case Study: Am I a Girl, or a Boy?  

Science.gov (United States)

This is a case study for undergraduate students in molecular biology and can be adapted for anatomy, physiology, and/or anatomy and physiology courses. In particular this case study explores anatomy and physiology associated with reproductive biology. Users of the National Center for Case Study Teaching in Science will be required to register (free) to gain access to the answer key (and must be of teaching status to receive the key). Included in the resource are the case overview, objectives, case study, teaching notes and answer key.

2012-03-26

428

Case Study: Dem Bones - Forensic Resurrection of a Skeleton  

Science.gov (United States)

This is a case study for high school and undergraduate students in anatomy and physiology. In particular this case study explores anatomy of the skeleton (including landmarks), sex and age determination via pelvic and skull morphology. Users of the National Center for Case Study Teaching in Science will be required to register (free) to gain access to the answer key (and must be of teaching status to receive the key). Included in the resource are the case overview, objectives, case study, teaching notes and answer key.

Alease S. Bruce (University of Massachusetts-Lowell Department of Health and Clinical Sciences)

2001-07-09

429

Astrocitoma subependimário de células gigantes em pacientes com esclerose tuberosa: achados em ressonância magnética de dez casos / Subependymal giant cell astrocytoma in patients with tuberous sclerosis: magnetic resonance imaging findings in ten cases  

Scientific Electronic Library Online (English)

Full Text Available OBJETIVO: Relatar os achados de ressonância magnética (RM) em 10 casos de astrocitoma subependimário de células gigantes (ASCG) em pacientes com esclerose tuberosa (ET). MÉTODO: Foram estudados de forma retrospectiva 10 pacientes com ET e diagnóstico histológico comprovado de ASCG. Quatro pacientes [...] eram do sexo masculino e seis do feminino, com idade média de 15,7 anos. Todos os pacientes foram investigados com RM, sendo os exames revisados por dois radiologistas, havendo decisão por consenso sobre os achados de imagem. Foram analisados os seguintes achados: localização, dimensões, intensidade de sinal em T1/T2, realce pós-contraste e outros achados associados. RESULTADOS: Todos os pacientes apresentaram lesão única sugestiva de ASCG, medindo entre 1,5 cm e 8 cm em seu maior diâmetro. Oito lesões foram encontradas junto ao forame de Monro (80%) e duas adjacentes ao corpo do ventrículo lateral (20%). Os tumores apresentavam nas imagens pesadas em T1 médio sinal (70%) e em T2 alto sinal (100%), com realce intenso após a administração do gadolínio (100%). CONCLUSÃO: Os astrocitomas subependimários de células gigantes em pacientes com ET em geral apresentam-se como lesão única próxima ao forame de Monro, com médio sinal nas imagens ponderadas em T1, alto sinal em T2 e realce intenso após a administração de contraste. Abstract in english OBJECTIVE: To report the magnetic resonance imaging (MRI) findings in 10 patients with subependimal giant cell astrocytoma (SGCA) and tuberous sclerosis (TS). METHOD: Ten patients were retrospectively studied, presenting TS and histologically proven SGCA. Four patients were male and six female, with [...] mean age 15.7 years. All patients underwent MRI, which was analyzed by two radiologists, final diagnosis was reached by consensus. The following findings were studied: topography, size, signal intensity on T1/T2-weighted images, contrast enhancement and associated findings. RESULTS: All patients presented a single lesion suggestive of SGCA, measuring between 1.5 cm and e 8 cm in the largest diameter. Eight lesions were found near the foramen of Monro and two in the body of the lateral ventricles. The tumors showed preferentially intermediate signal on T1 (70%), high signal on T2-weighted images (100%), with intense enhancement after contrast administration (100%). CONCLUSION: SGCA in patients with TS usually presents as a single lesion near the foramen of Monro, with intermediate signal on T1, high signal on T2-weighted images and intense contrast enhancement.

Karina, Takata; Emerson L., Gasparetto; Claudia da Costa, Leite; Leandro T., Lucato; Umbertina C., Reed; Hamilton, Matushita; Paulo Henrique P. de, Aguiar; Sérgio, Rosemberg.

2007-06-01

430

Astrocitoma subependimário de células gigantes em pacientes com esclerose tuberosa: achados em ressonância magnética de dez casos Subependymal giant cell astrocytoma in patients with tuberous sclerosis: magnetic resonance imaging findings in ten cases  

Directory of Open Access Journals (Sweden)

Full Text Available OBJETIVO: Relatar os achados de ressonância magnética (RM em 10 casos de astrocitoma subependimário de células gigantes (ASCG em pacientes com esclerose tuberosa (ET. MÉTODO: Foram estudados de forma retrospectiva 10 pacientes com ET e diagnóstico histológico comprovado de ASCG. Quatro pacientes eram do sexo masculino e seis do feminino, com idade média de 15,7 anos. Todos os pacientes foram investigados com RM, sendo os exames revisados por dois radiologistas, havendo decisão por consenso sobre os achados de imagem. Foram analisados os seguintes achados: localização, dimensões, intensidade de sinal em T1/T2, realce pós-contraste e outros achados associados. RESULTADOS: Todos os pacientes apresentaram lesão única sugestiva de ASCG, medindo entre 1,5 cm e 8 cm em seu maior diâmetro. Oito lesões foram encontradas junto ao forame de Monro (80% e duas adjacentes ao corpo do ventrículo lateral (20%. Os tumores apresentavam nas imagens pesadas em T1 médio sinal (70% e em T2 alto sinal (100%, com realce intenso após a administração do gadolínio (100%. CONCLUSÃO: Os astrocitomas subependimários de células gigantes em pacientes com ET em geral apresentam-se como lesão única próxima ao forame de Monro, com médio sinal nas imagens ponderadas em T1, alto sinal em T2 e realce intenso após a administração de contraste.OBJECTIVE: To report the magnetic resonance imaging (MRI findings in 10 patients with subependimal giant cell astrocytoma (SGCA and tuberous sclerosis (TS. METHOD: Ten patients were retrospectively studied, presenting TS and histologically proven SGCA. Four patients were male and six female, with mean age 15.7 years. All patients underwent MRI, which was analyzed by two radiologists, final diagnosis was reached by consensus. The following findings were studied: topography, size, signal intensity on T1/T2-weighted images, contrast enhancement and associated findings. RESULTS: All patients presented a single lesion suggestive of SGCA, measuring between 1.5 cm and e 8 cm in the largest diameter. Eight lesions were found near the foramen of Monro and two in the body of the lateral ventricles. The tumors showed preferentially intermediate signal on T1 (70%, high signal on T2-weighted images (100%, with intense enhancement after contrast administration (100%. CONCLUSION: SGCA in patients with TS usually presents as a single lesion near the foramen of Monro, with intermediate signal on T1, high signal on T2-weighted images and intense contrast enhancement.

Karina Takata

2007-06-01

431

A clinico-pathological study of 70 cases of pemphigus  

Directory of Open Access Journals (Sweden)

Full Text Available A clinicopalhological study of 70 cases of pemphigus observed over a span of four and a half years from January 1992 to June 1996 at the Sir J.J. Group of Hospitals and Grant Medical College, Mumbai is reported. Pemphigus vulgaris constituted the single largest group of 43 cases, followed by pemphigus foliaceus (25 cases and pemphigus vegetans (2 cases. Majority of the cases were seen in the age group of 21-60 years, with a slight male predominance. The youngest patient was 14 years while the eldest was aged 75 years. Mucosal involvement was seen in 31 cases of pemphigus vulgaris, as opposed to only 5 cases of pemphigus foliaceus. Flaccid bullae were present in 100% cases. Pruritus was complained of in 14 cases, though it was more common in pemphigus vegetans and vulgaris. Salient histopathological features of pemphigus vulgaris observed were (I intraepidermal suprabasal blisters (35 cases, (2 presence of acantholytic cells (40 cases, (3 "Row of tombstone appearance" (I8 cases and (4 acantholysis involving follicular sheath (20 cases. Main histopathological features of pemphigus foliaceus were (1 subcorneal blister (15 case, (2 acantholysis (24 cases and (3 bulla cavity containing inflammatory infiltrate (12 cases. Both cases of pemphigus vegetans showed hyperkeratosis, papillomatosis and irregular acanthosis with intra-epidermal eosinophilic abscesses besides suprabasal lacunae.

Arya S

1999-01-01

432

Studies on five cases of radiation enterocolitis  

International Nuclear Information System (INIS)

Five patients with radiation enterocolitis who were surgically treated are reported. The 5 patients had received irradiation therapy more than 5,000 rad for ginecologic malignancies. The period for the onset of symptoms of irradiation enteritis ranged from 8 months to 20 years however, 3 of them developed the symptoms within one year after irradiation therapy. Emergency surgery was carried out for bowel obstruction in 3 cases and for intestinal perforation in 2 cases. Bowel resection and primary anastomosis were performed by a one-step approach in 4 of them. Transient colostomy as preventive measure was added in 2 cases. It is very important for the one-step approach to resect the intestine at the healthy part far from the lesion of irradiation enteritis and to add a transient colostomy to prevent anastomolic insufficiency. Furthermore, suture material should be used less tissue reactive one. (author)

433

Studies on five cases of radiation enterocolitis  

Energy Technology Data Exchange (ETDEWEB)

Five patients with radiation enterocolitis who were surgically treated are reported. The 5 patients had received irradiation therapy more than 5,000 rad for ginecologic malignancies. The period for the onset of symptoms of irradiation enteritis ranged from 8 months to 20 years however, 3 of them developed the symptoms within one year after irradiation therapy. Emergency surgery was carried out for bowel obstruction in 3 cases and for intestinal perforation in 2 cases. Bowel resection a