WorldWideScience

Sample records for center comparison study

  1. Process comparison study. MSFC Center Director's Discretionary Fund (CDDF)

    Science.gov (United States)

    Golden, T.; Krawiec, J.

    1992-11-01

    A process comparison study was conducted using four different advanced manufacturing techniques to fabricate a composite solid rocket booster systems tunnel cover. Costs and labor hours were tracked to provide the comparison between the processes. A relative structural comparison of the components is also included. The processes utilized included filament winding, pultrusion, automated tape laying, and thermoplastic thermoforming. The hand layup technique is also compared. Of the four advanced processes evaluated, the thermoformed thermoplastic component resulted in the least total cost. The automated tape laying and filament winding techniques closely followed the thermoplastic component in terms of total cost; and, these techniques show the most promise for high quality components and lower production costs. The pultruded component, with its expensive tooling and material requirements, was by far the most expensive process evaluated, although the results obtained would not be representative of large production runs.

  2. Comparison of endoscopic stenting for malignant biliaryobstruction: A single-center study

    Institute of Scientific and Technical Information of China (English)

    2015-01-01

    AIM: To evaluate the efficacy and safety of single-stependoscopic placement of self-expandable metallic stents(SEMS) for treatment of obstructive jaundice.METHODS: A retrospective study was performedamong 90 patients who underwent transpapillarybiliary metallic stent placement for malignant biliaryobstruction (MBO) between April 2005 and October2012. The diagnosis of primary disease and MBO wasbased on abdominal ultrasound, computed tomography,magnetic resonance imaging, endoscopic ultrasound,endoscopic retrograde cholangiopancreatography withbrush cytology, biopsy, and/or a combination of thesemodalities. The type of SEMS (covered or non-covered,8 mm or 10 mm in diameter) was determined by theendoscopist. Ninety patients were divided into twogroups: group 1 (49 patients) who underwent a singlestepSEMS placement and group 2 (41 patients) whounderwent a two-step SEMS placement. The technicalsuccess rate, complication rate, stent patency, andpatient survival rate were compared between thegroups. In addition, to identify the clinical prognosticfactors associated with patient survival, the followingvariables were evaluated in Cox-regression analysis:gender, age, etiology of MBO (pancreatic cancer or nonpancreaticcancer), clinical stage (Ⅳb; with distant metastases or Ⅳa 〉; without distant metastases),chemotherapy (with or without), patency of the stent,and the use of single-step or two-step SEMS.RESULTS: Immediate technical success was achievedin 93.9% (46/49) in group 1 and in 95.1% (39/41)in group 2, with no significant difference (P = 1.0).Similarly, there was no difference in the complicationrates between the groups (group 1, 4.1% and group 2,4.9%; P = 0.62). Stent failure was observed in 10 casesin group 1 (20.4%) and in 16 cases in group 2 (39.0%).The patency of stent and patient survival revealed nodifference between the two groups with Kaplan-Meieranalysis, with a mean patency of 111 ± 17

  3. Community health centers and primary care access and quality for chronically-ill patients – a case-comparison study of urban Guangdong Province, China

    OpenAIRE

    Shi, Leiyu; Lee, De-Chih; Liang, Hailun; Zhang, Luwen; Makinen, Marty; Blanchet, Nathan; Kidane, Ruth; Lindelow, Magnus; Wang, Hong; Wu, Shaolong

    2015-01-01

    Objective Reform of the health care system in urban areas of China has prompted concerns about the utilization of Community Health Centers (CHC). This study examined which of the dominant primary care delivery models, i.e., the public CHC model, the ‘gate-keeper’ CHC model, or the hospital-owned CHC models, was most effective in enhancing access to and quality of care for patients with chronic illness. Methods The case-comparison design was used to study nine health care organizations in Guan...

  4. A comparison of concurrent chemoradiotherapy and radiotherapy in Chinese patients with locally advanced cervical carcinoma: a multi-center study

    International Nuclear Information System (INIS)

    We investigated the efficacy of concurrent chemoradiotherapy (CCRT) over radiotherapy (RT) in Chinese patients with locally advanced cervical carcinoma. Between January 2005 and January 2008, 192 patients with squamous cell carcinoma of the cervix were included in the study: 96 in arm A (CCRT with 20 mg/m2 cisplatin for 5 days) and 96 in arm B (RT). The overall response rate was the primary endpoint. The secondary endpoints included overall survival, progression-free survival, and toxicity. The 5-year overall response rate was 67% and 53% for the CCRT and RT arms, respectively, and the difference was statistically significant, while the median overall survival was 68 months (range 3-85 months) and 61 months (range 4-83 months), respectively (P = 0.009). In addition, the median progression-free survival for CCRT was 62 months (range 3-83 months), whereas it was 51 months (range 4-81 months) for the RT arm (P = 0.025). The toxicity profile, both acute and late, was comparable in both arms. In summary, we demonstrate that CCRT was effective and better tolerated than RT alone in Chinese patients with locally advanced cervical carcinoma.

  5. CENTER FOR CYBER SECURITY STUDIES

    Data.gov (United States)

    Federal Laboratory Consortium — The mission of the Center for Cyber Security Studies is to enhance the education of midshipmen in all areas of cyber warfare, to facilitate the sharing of expertise...

  6. Reliability and validity of the Center for Epidemiologic Studies Depression Scale (CES-D) among suicide attempters and comparison residents in rural China

    OpenAIRE

    Yang, Li; Jia, Cun-Xian; Qin, Ping

    2015-01-01

    Background Depression is an important public health problem and is closely associated with suicidal behavior in the population. Although the Center for Epidemiologic Studies Depression Scale (CES-D) is widely used for assessment of depression, the psychometric characteristics of this scale have not been explored in studies of suicide attempters and local residents in rural areas. Methods In this study...

  7. Control Systems Security Center Comparison Study of Industrial Control System Standards against the Control Systems Protection Framework Cyber-Security Requirements

    Energy Technology Data Exchange (ETDEWEB)

    Robert P. Evans

    2005-09-01

    Cyber security standards, guidelines, and best practices for control systems are critical requirements that have been delineated and formally recognized by industry and government entities. Cyber security standards provide a common language within the industrial control system community, both national and international, to facilitate understanding of security awareness issues but, ultimately, they are intended to strengthen cyber security for control systems. This study and the preliminary findings outlined in this report are an initial attempt by the Control Systems Security Center (CSSC) Standard Awareness Team to better understand how existing and emerging industry standards, guidelines, and best practices address cyber security for industrial control systems. The Standard Awareness Team comprised subject matter experts in control systems and cyber security technologies and standards from several Department of Energy (DOE) National Laboratories, including Argonne National Laboratory, Idaho National Laboratory, Pacific Northwest National Laboratory, and Sandia National Laboratories. This study was conducted in two parts: a standard identification effort and a comparison analysis effort. During the standard identification effort, the Standard Awareness Team conducted a comprehensive open-source survey of existing control systems security standards, regulations, and guidelines in several of the critical infrastructure (CI) sectors, including the telecommunication, water, chemical, energy (electric power, petroleum and oil, natural gas), and transportation--rail sectors and sub-sectors. During the comparison analysis effort, the team compared the requirements contained in selected, identified, industry standards with the cyber security requirements in ''Cyber Security Protection Framework'', Version 0.9 (hereafter referred to as the ''Framework''). For each of the seven sector/sub-sectors listed above, one standard was

  8. Evaluation and Comparison of Changes in Microhardness of Primary and Permanent Enamel on Exposure to Acidic Center-filled Chewing Gum: An in vitro Study

    OpenAIRE

    Mudumba, Vijaya Lakshmi; Muppa, Radhika; Srinivas, NCH; Kumar, Duddu Mahesh

    2014-01-01

    ABSTRACT Objectives: The study is to evaluate changes in microhardness of enamel after exposure to acidic center filled chewing gum on primary and permanent teeth. Methods: Thirty primary and 30 permanent molar extracted teeth were painted with acid resistant varnish except a small window over buccal surface. Teeth were divided into four groups according to type of teeth and type of chewing gum (Center fresh and Bubbaloo) (D1, P1, D2 and P2); each tooth was exposed to whole chewing gum mashed...

  9. Center for Botanical Interaction Studies

    Data.gov (United States)

    Federal Laboratory Consortium — Research Area: Dietary Supplements, Herbs, Antioxidants Program:Centers for Dietary Supplements Research: Botanicals Description:This center will look at safety and...

  10. Center for Creative Studies, Detroit

    Science.gov (United States)

    AIA Journal, 1976

    1976-01-01

    One of the ten buildings chosen to receive 1976 AIA honor awards, the arts center houses the departments of sculpture, painting, graphics, advertising art, photography, and industrial design. (Author/MLF)

  11. Comparison of laparoscopy-assisted and open radical gastrectomy for advanced gastric cancer: A retrospective study in a single minimally invasive surgery center.

    Science.gov (United States)

    Hao, Yingxue; Yu, Peiwu; Qian, Feng; Zhao, Yongliang; Shi, Yan; Tang, Bo; Zeng, Dongzhu; Zhang, Chao

    2016-06-01

    Laparoscopy-assisted gastrectomy (LAG) has gained international acceptance for the treatment of early gastric cancer (EGC). However, the use of laparoscopic surgery in the management of advanced gastric cancer (AGC) has not attained widespread acceptance. This retrospective large-scale patient study in a single center for minimally invasive surgery assessed the feasibility and safety of LAG for T2 and T3 stage AGC. A total of 628 patients underwent LAG and 579 patients underwent open gastrectomy (OG) from Jan 2004 to Dec 2011. All cases underwent radical lymph node (LN) dissection from D1 to D2+. This study compared short- and long-term results between the 2 groups after stratifying by pTNM stages, including the mean operation time, volume of blood loss, number of harvested LNs, average days of postoperative hospital stay, mean gastrointestinal function recovery time, intra- and post-operative complications, recurrence rate, recurrence site, and 5-year survival curve. Thirty-five patients (5.57%) converted to open procedures in the LAG group. There were no significant differences in retrieved LN number (30.4 ± 13.4 vs 28.1 ± 17.2, P = 0.43), proximal resection margin (PRM) (6.15 ± 1.63 vs 6.09 ± 1.91, P = 0.56), or distal resection margin (DRM) (5.46 ± 1.74 vs 5.40 ± 1.95, P = 0.57) between the LAG and OG groups, respectively. The mean volume of blood loss (154.5 ± 102.6 vs 311.2 ± 118.9 mL, P < 0.001), mean postoperative hospital stay (7.6 ± 2.5 vs 10.7 ± 3.6 days, P < 0.001), mean time for gastrointestinal function recovery (3.3 ± 1.4 vs 3.9 ± 1.5 days, P < 0.001), and postoperative complications rate (6.4% vs 10.5%, P = 0.01) were clearly lower in the LAG group compared to the OG group. However, the recurrence pattern and site were not different between the 2 groups, even they were stratified by the TNM stage. The 5-year overall survival (OS) rates were 85.38%, 79.70%, 57

  12. A multi-center study for comparison of planar versus tomographic pulmonary ventilation/perfusion imaging for the diagnosis of pulmonary embolism

    International Nuclear Information System (INIS)

    Objective: To compare between one-day planar and tomographic pulmonary V/Q imaging for the diagnosis of PE using ROC analysis. Methods: From September 2010 to October 2011, 272 patients suspected or confirmed of acute/sub-acute PE with Wells scores ≥ 2 or blood D-Dimer values >500 μg/L were recruited into this study. Patients' data were collected from six hospitals in Beijing. All patients were followed clinically for at least six months after V/Q imaging. Based on the criteria of prospective investigation of pulmonary embolism diagnosis (PIOPED) study Ⅱ, the diagnosis by planar pulmonary V/Q scans was categorized as high-probability (definite PE), moderate or low probability (suspected PE), and very low probability or normal lung perfusion (no PE). The diagnosis by SPECT V/Q scans was also classified as definite PE, suspected PE and no PE. The final diagnosis was decided by doctors in consensus based on the results of multiple imaging modalities, laboratory tests,clinical data and a six-month follow-up. Kappa test was used to analyze the concordance between planar and tomographic V/Q scans. The difference between the two methods was tested using χ2 test. ROC analysis was used to determine the AUCs. Z test was used to calculate the statistical significance of the difference between the AUCs. Results: The uncertain diagnosis rate was 1.8% (5/272) for V/Q SPECT and 9.2% (25/272) for planar imaging. The diagnostic values for SPECT and planar V/Q scans were respectively: Se 83.6% (117/140) and 78.3% (101/129) (χ2=1.217, P>0.05); Sp 89.8%(114/127) and 94.9% (112/118) (χ2=2.269, P>0.05); PPV 90.0% (117/130) and 94.4% (101/107); NPV 83.2% (114/137) and 80.0% (112/140); Ac 86.5% (231/267) and 86.2% (213/247). There were no significant differences in Se and Sp between the two methods. The concordance between the two methods was 84.9% (231/272, Kappa=0.727, P<0.05). The AUC (95% CI) was 0.891 (0.848-0.933) and 0.865 (0.819-0.911) for SPECT and planar V

  13. American Studies Center:An Introduction

    Institute of Scientific and Technical Information of China (English)

    Shu; HONG

    2013-01-01

    <正>The year 2012 was remarkable in the history of American Studies at Sichuan University.First,it marked the 28thAnniversary of the founding of the American Studies Center,which had its official debut in May,1984,coinciding with the establishment of the US Consulate General in Chengdu.U.S.Vice President George Bush was present at the Inauguration Ceremony of the American Studies Center,and

  14. Cosmos, an international center for advanced studies

    Science.gov (United States)

    Ryzhov, Iurii; Alifanov, Oleg; Sadin, Stanley; Coleman, Paul

    1990-01-01

    The concept of Cosmos, a Soviet operating center for aerospace activities, is presented. The main Cosmos participants are the Institute for Aerospace Education, the Institute for Research and Commercial Development, and the Department of Space Policy and Socio-Economic Studies. Cosmos sponsors a number of educational programs, basic research, and studies of the social impact of space-related technologies.

  15. Symmetry comparison between sacrum and center of mass during walking.

    Science.gov (United States)

    Navvab Motlagh, Fateme; Arshi, Ahmed Reza

    2016-07-01

    Sacrum motion is used extensively in clinical research to represent movement of the entire body by replacing the center of mass. The primary objective of this article was to investigate the effect of this replacement on symmetry determination. The secondary objective was to assess the correlation between the symmetries of trajectories of center of mass and sacrum, and that of spatiotemporal parameters. Three-dimensional trajectories obtained from 37 markers placed on anatomical landmarks of 15 healthy subjects were recorded while walking at three speeds on the treadmill. Trajectory of center of mass was determined using segmental analysis method. The results indicated that two symmetries, one determined using sacrum marker and the other using segmental analysis method, were different and this difference was more pronounced in anterior-posterior direction. In other words, harmonic analysis of sacrum and center of mass trajectories revealed different results. Furthermore, low-to-moderate correlations were observed between spatiotemporal parameters symmetry and symmetries obtained from both center of mass and sacrum. In conclusion, the results indicated that it may not be analytically acceptable to substitute sacrum for center of mass in symmetry determination. PMID:27272201

  16. Matrixed business support comparison study.

    Energy Technology Data Exchange (ETDEWEB)

    Parsons, Josh D.

    2004-11-01

    The Matrixed Business Support Comparison Study reviewed the current matrixed Chief Financial Officer (CFO) division staff models at Sandia National Laboratories. There were two primary drivers of this analysis: (1) the increasing number of financial staff matrixed to mission customers and (2) the desire to further understand the matrix process and the opportunities and challenges it creates.

  17. Assessing Latina/o Undergraduates' Depressive Symptomatology: Comparisons of the Beck Depression Inventory-II, the Center for Epidemiological Studies-Depression Scale, and the Self-Report Depression Scale

    Science.gov (United States)

    Gloria, Alberta M.; Castellanos, Jeanett; Kanagui-Munoz, Marlen; Rico, Melissa A.

    2012-01-01

    The use of depression scales as screening tools at university and college centers is increasing and thus, the question of whether scales are culturally valid for different student groups is increasingly more relevant with increased severity of depression for students and changing student demographics. As such, this study examined the reliability…

  18. A Comparison of Organization-Centered and Agent-Centered Multi-Agent Systems

    DEFF Research Database (Denmark)

    Jensen, Andreas Schmidt; Villadsen, Jørgen

    2013-01-01

    Whereas most classical multi-agent systems have the agent in center, there has recently been a development towards focusing more on the organization of the system, thereby allowing the designer to focus on what the system goals are, without considering how the goals should be fulfilled. We have d...

  19. Report on the Center for Spatial Studies

    OpenAIRE

    Hegarty, Mary; GOODCHILD Michael; Janelle, Donald; Doehner, Karen

    2013-01-01

    This report documents the education, research, and outreach activities of the Center for the period beginning in July 2010. In addition, it presents a vision for the center based on plans set forth by the incoming (Dec. 2013) Director of the Center, Dr. Werner Kuhn.

  20. Center for Advanced Energy Studies Program Plan

    Energy Technology Data Exchange (ETDEWEB)

    Kevin Kostelnik

    2005-09-01

    The world is facing critical energy-related challenges regarding world and national energy demands, advanced science and energy technology delivery, nuclear engineering educational shortfalls, and adequately trained technical staff. Resolution of these issues is important for the United States to ensure a secure and affordable energy supply, which is essential for maintaining U.S. national security, continued economic prosperity, and future sustainable development. One way that the U.S. Department of Energy (DOE) is addressing these challenges is by tasking the Battelle Energy Alliance, LLC (BEA) with developing the Center for Advanced Energy Studies (CAES) at the Idaho National Laboratory (INL). By 2015, CAES will be a self-sustaining, world-class, academic and research institution where the INL; DOE; Idaho, regional, and other national universities; and the international community will cooperate to conduct critical energy-related research, classroom instruction, technical training, policy conceptualization, public dialogue, and other events.

  1. A comparison of mortality rates in three prospective studies from Copenhagen with mortality rates in the central part of the city, and the entire country. Copenhagen Center for Prospective Population Studies

    DEFF Research Database (Denmark)

    Andersen, L B; Vestbo, J; Juel, K;

    1998-01-01

    Copenhagen City Heart Study, whereas mortality rates in the Glostrup Population Studies were similar to rates for the whole country. The mortality rates among participants were lower than in the whole sample, and differences existed in relation to region and selection criteria of the cohorts. The Copenhagen...... Male Study, where only employed men were included, showed the lowest mortality rates, and higher rates were found in the study from the central part of the City (the Copenhagen City Heart Study) compared to the study from the suburbs (the Glostrup Population Studies). The difference between mortality...... rates in the cohorts and in Copenhagen City decreased with increasing age. The SMR converged towards 1.00 with increasing observation time. In conclusion, high participation rates were found in all three studies, resulting in SMR values for participants only slightly lower than in the source population...

  2. Center for the Study of Traumatic Stress

    Data.gov (United States)

    Federal Laboratory Consortium — As part of the Department of Psychiatry of our federal medical school, the Uniformed Services University of the Health Sciences (USUHS), the Center was established...

  3. Optimizing X Center experience : case study: Company X

    OpenAIRE

    Lehtinen, Timo

    2014-01-01

    This Master’s thesis explores customer experience management and customer experience optimization. The aim is to optimize customer experience in the case company’s X Center. The thesis studies customer experience and customer experience management as a core factor in holding successful X Center events. The study is conducted in cooperation with Company X. Company X launched a new concept called X Center in Finland 2011. X Center is a place where custom-ers and company representatives can ...

  4. Finite Element Analysis and Test Results Comparison for the Hybrid Wing Body Center Section Test Article

    Science.gov (United States)

    Przekop, Adam; Jegley, Dawn C.; Rouse, Marshall; Lovejoy, Andrew E.

    2016-01-01

    This report documents the comparison of test measurements and predictive finite element analysis results for a hybrid wing body center section test article. The testing and analysis efforts were part of the Airframe Technology subproject within the NASA Environmentally Responsible Aviation project. Test results include full field displacement measurements obtained from digital image correlation systems and discrete strain measurements obtained using both unidirectional and rosette resistive gauges. Most significant results are presented for the critical five load cases exercised during the test. Final test to failure after inflicting severe damage to the test article is also documented. Overall, good comparison between predicted and actual behavior of the test article is found.

  5. Student-Centered and Teacher-Centered Classroom Management: A Case Study of Three Elementary Teachers

    Science.gov (United States)

    Garrett, Tracey

    2008-01-01

    The major purpose of this case study was to document the classroom management beliefs and practices of three teachers reputed to implement student-centered instruction and to examine the relationship between their instructional and managerial approaches. More specifically, do teachers who use student-centered instruction also implement…

  6. A Brief Study on Autonomous Learning Mode in Self-study Center Based on Web

    Science.gov (United States)

    Tian, Xian Zhi

    In the paper, the author has studied the autonomous learning ability and its reform of linguistic-major students. All of the studies are based on web in self-study center. As for the author, she has used the method of comparison and at the same time, she also used showing examples. In order to show the views clearly, the author has made investigation in English major and law major students. Thus she thinks that teaching reform is necessary for development of students and some effective ways can be used in improving teaching efficiency.

  7. Lujan Center Cold Source Upgrade Studies

    International Nuclear Information System (INIS)

    The Manuel Lujan Jr. Neutron Scattering Center (Lujan Center) at the Los Alamos National Laboratory is the most powerful pulsed neutron scattering facility in North America. It currently produces the highest time-averaged cold source brightness of any pulsed neutron scattering facility in the world, and efforts are underway to increase this even further. The Lujan Center is a part of the Los Alamos Neutron Science Center (LANSCE), a complex centered around an 800-MeV proton linear accelerator capable of accelerating 1 mA beam current. The LANSCE accelerator delivers 125 μA of H¯ beam in 0.65-ms-long pulses at 20 Hz to a proton storage ring, which compresses them to a width of 300 ns, each of which contains 4 x 1013 protons per pulse. These pulses are then transported to a 90° dipole magnet which directs them vertically downward onto the Lujan Center target system. The protons induce spallation reactions in the split tungsten target, producing mostly evaporation neutrons, some of which are reflected by the surrounding Be reflector into one of six moderator. Four (three water and one liquid hydrogen) of these are arranged in flux-trap geometry between the upper and lower portions of the split tungsten target; the other two (one water and one liquid hydrogen) are located above the upper portion of the target in what is known as upstream backscattering geometry. Those arranged around the flux trap are called lower-tier moderators, and the other two are known as upper-tier moderators. The lower-tier moderators serve three flight paths each, while the upper-tier moderators serve two flight paths each, for a total of 16 flight paths. Fourteen of these flight paths have operating instruments on them, one more has an instrument under construction, and one is unassigned. The instruments serve a variety of applications, including materials science, biology, chemistry, nuclear physics, and engineering. The Lujan Center is currently operating on a third generation target

  8. Study of a conceptual nuclear energy center at Green River, Utah: regional considerations

    International Nuclear Information System (INIS)

    This document constitutes one segment of a feasibility study investigating the ramifications of constructing a nuclear energy center in an arid and remote Western region. This phase of the study discusses regional considerations involved in nuclear energy center development at Green River, Utah. Regional support for NEC development is assessed. In addition, possible regulatory constraints to NEC development are identified and analyzed. Possible resource allocation shortages resulting from NEC development are also considered. A comparison with a similar study on NEC development in the Southeastern United States is also included

  9. Comparison of calculated and measured high energy neutron reaction rates at the manual Jr. Lujan Center Spallation Source

    International Nuclear Information System (INIS)

    In December 2001, we measured the in beam high-energy neutron intensities on several of the beamlines at the spallation neutron source at the Lujan Center, Los Alamos, USA. This effort was then followed by a comparison of these measurements with Monte Carlo transport simulations. In this paper we present the results of these simulations and their comparison with the measurements

  10. Engaged or Not? A Comparative Study on Factors Inducing Work Engagement in Call Center and Service Sector Work.

    OpenAIRE

    Mustosmäki, Armi; Anttila, Timo; Oinas, Tomi

    2013-01-01

    The aim of this study was to compare the possibilities of experiencing positive well-being in call centers and other service sector work. The article focuses on the prevalence of working conditions (job demands, autonomy, and social support) in call centers and at other service sector workplaces and how these factors are related to work engagement. In addition, we examine whether the relationships are divergent in call centers in comparison to other service sector work. Analysis i...

  11. Comparison of quality control for trauma management between Western and Eastern European trauma center

    Directory of Open Access Journals (Sweden)

    Gambale Giorgio

    2008-11-01

    Full Text Available Abstract Background Quality control of trauma care is essential to define the effectiveness of trauma center and trauma system. To identify the troublesome issues of the system is the first step for validation of the focused customized solutions. This is a comparative study of two level I trauma centers in Italy and Romania and it has been designed to give an overview of the entire trauma care program adopted in these two countries. This study was aimed to use the results as the basis for recommending and planning changes in the two trauma systems for a better trauma care. Methods We retrospectively reviewed a total of 182 major trauma patients treated in the two hospitals included in the study, between January and June 2002. Every case was analyzed according to the recommended minimal audit filters for trauma quality assurance by The American College of Surgeons Committee on Trauma (ACSCOT. Results Satisfactory yields have been reached in both centers for the management of head and abdominal trauma, airway management, Emergency Department length of stay and early diagnosis and treatment. The main significant differences between the two centers were in the patients' transfers, the leadership of trauma team and the patients' outcome. The main concerns have been in the surgical treatment of fractures, the outcome and the lacking of documentation. Conclusion The analyzed hospitals are classified as Level I trauma center and are within the group of the highest quality level centers in their own countries. Nevertheless, both of them experience major lacks and for few audit filters do not reach the mmum standard requirements of ACS Audit Filters. The differences between the western and the eastern European center were slight. The parameters not reaching the minimum requirements are probably occurring even more often in suburban settings.

  12. Tri-Service Center for Oral Health Studies (TSCOHS)

    Data.gov (United States)

    Federal Laboratory Consortium — The Tri-Service Center for Oral Health Studies (TSCOHS), a service of the Postgraduate Dental College, is chartered by the Department of Defense TRICARE Management...

  13. Study of feasibility of daycare surgery in tertiary health center

    OpenAIRE

    Hedawoo, J. B.; Amrin Sheikh

    2016-01-01

    Aim: To study the feasibility of daycare surgery in a tertiary care center. Background: Day care surgery is advantageous to patient in terms of early recovery less hospital stay, less rate of complications. Now a-days number of day care surgeries has increased and nearly 50 percent surgeries in western countries are done on daycare basis. Methods: This is Hospital Based observational study carried out in Department of Surgery in tertiary care center over the period from August 2013 to Novembe...

  14. The Plant Information Center (PIC): A Web-Based Learning Center for Botanical Study.

    Science.gov (United States)

    Greenberg, J.; Daniel, E.; Massey, J.; White, P.

    The Plant Information Center (PIC) is a project funded under the Institute of Museum and Library Studies that aims to provide global access to both primary and secondary botanical resources via the World Wide Web. Central to the project is the development and employment of a series of applications that facilitate resource discovery, interactive…

  15. Eligibility Comparison of Beach Tourism and Non-Beach Tourism Health Centers in Bali Province (Secundery Analysis of Rifaskes 2011

    Directory of Open Access Journals (Sweden)

    Suharmiati Suharmiati

    2015-03-01

    Province of Bali service tourists. It should be the responsibility of the government. On the other hand the feasibility of health centers (HC based on the availability of coastal tourism facilities and infrastructure, including human resources available to the health service is not clear. This study compared the feasibility of health centers shore excursions and non touristic beach health centers in Bali Province. Methods:Secondary data Healthcare Research Facility (Rifaskes 2011 all health centers in the Province of Bali. The number of samples are 114 health centers. Variabels consisted of facilities, infrastructure, human resources and health programs. The analysis is done by giving the value (weight of each variabel, then performed the scoring of each variabel both in Beach Tourist and Non Tourist Health Centers. Distribution of of the multiplication of the value with a score used to determine the feasibility of each variabel by calculating the mean (x and standart deviation (SD. Comparison of eligibility of Health Centers by differentiating the mean (x of each health center using different test (t test. Result: There is no difference in viability between Tourist and Non Tourist Beach the shore excursions based on the availability of facilities, infrastructure, human resources and health services (p > 0.05. Recomendation: Suggested health centers increase the completeness and appropriate management to be a Health Centers for Tourist, and cooperation with private clinics, the has to monitor the services and the due to cases HC responsibility.Key words: feasibility, Tourist Health Centers, Health Centers Non Tourist, Bali Province

  16. A Gender Comparison of the Cooperation of 4-Year-Old Children in Classroom Activity Centers

    Science.gov (United States)

    Anderson, Genan T.; Hilton, Sterling C.; Wouden-Miller, Melissa

    2003-01-01

    This study examined the proportion of cooperative play in 4-year-old children across centers (housekeeping, block, manipulative, and computer) and gender in a natural classroom setting. Eighty-four white, middle-income children (41 boys and 43 girls, mean age = 55 months) were videotaped during free-play for 30 minutes per day for four weeks in…

  17. Comparison of total direct cost of conventional single use and mechanical reuse of dialyzers in patients of end-stage renal disease on maintenance hemodialysis: A single center study.

    Science.gov (United States)

    Qureshi, Ruqaya; Dhrolia, Murtaza F; Nasir, Kiran; Imtiaz, Salman; Ahmad, Aasim

    2016-01-01

    Reusing dialyzers is almost universal in developing countries to reduce the cost of hemodialysis (HD). Economic benefits of dialyzer reuse, when estimated only on the basis of the dialyzer and its consumables are very significant and attractive. In this study, we compared the cost of mechanical reuse of dialyzer considering all of the direct costs (medications, dialyzer, and its consumables, disinfection fluid, and hospitalization if any) in HD treatment, which if significantly different between single use and reuse, can nullify the obvious cost benefits. A total of 70 adult patients of any gender on maintenance HD at The Kidney Centre Post Graduate Training Institute for more than three months were included. Equal numbers of patients were on single use (Group A) and reuse of dialyzer (Group B). Both groups were compared for total direct costs of HD over a six months period. Average six monthly total direct cost per patient of Group A was significantly high as compared to Group B, the United States Dollar (USD) 1750.67 ± 135.31$ vs. USD 1488.50 ± 132.23$); difference USD 262.18$ (P <0.001). The total cost saving being 14.97% in Group B. Our study shows that dialyzer reuse provides a significant economic benefit and remains a means of reducing the cost of HD. PMID:27424697

  18. Comparison between doppler ultrasound resistive index, serum creatinine, and histopathologic changes in patients with kidney transplant dysfunction in early posttransplantation period: A single center study with review of literature.

    Science.gov (United States)

    Patel, Kajal N; Patel, Nitin A; Gandhi, Shruti P

    2016-01-01

    To determine the relationship between resistive index (RI) measured by Doppler ultrasound, serum creatinine (SCr), and histopathological changes on biopsy during kidney trans- plant dysfunction in early postoperative period, we studied 47 kidney transplant patients; 61% of the patients had acute transplant rejection, 19% had acute tubular necrosis, 4% had calcineurin inhibitor toxicity, 11% had normal morphology in biopsy, and 5% had changes compatible with pyelonephritis. None of the study patients had interstitial fibrosis or tubular atrophy on biopsy. We found that the sensitivity and specificity of RI in diagnosing transplant dysfunction was highly variable depending on the selected cutoff value. Sensitivity of RI decreased and its specificity increased with increasing the RI thresholds. Using an RI threshold of 0.7 resulted in a high sensitivity of 78% at a cost of very low specificity 40%, whereas using an RI threshold of 0.9 resulted in 100% specificity at a cost of very low sensitivity 16%. Acceptable specificity was only achieved at the expense of very low sensitivity, resulting in poor utility of RI as a screening tool for dysfunction. We found that there were no significant differences in the mean RI value between patients with and without biopsy-proven transplant dysfunction. However, we found a significant correlation between SCr value and RI of 0.383, P = 0.007. PMID:27215246

  19. Comparison of patient outcomes in academic medical centers with and without value analysis programs

    Directory of Open Access Journals (Sweden)

    Murray AS

    2012-09-01

    Full Text Available Adrienne S Murray, Michael Griswold, Imran Sunesara, Ed SmithUniversity of Mississippi Health Care, University of Mississippi Medical Center, Jackson, MS, USABackground: Value analysis is the science of balancing the mandate to deliver high-quality clinical outcomes with the necessity to drive down costs in order to thrive in the challenging economics of health care. This study compared average length of stay, direct cost, morbidity, and mortality across the cardiology, cardiovascular, neuroscience, and orthopedic service lines, in academic medical centers with and without value analysis programs (VAPs. The basic question was, “Do academic medical centers with VAPs have lower average length of stay, better morbidity and mortality rates, and lower overall supply costs?”Methods and results: The clinical data base/resource manager (CDB/RM of the University HealthSystem Consortium was utilized as secondary data for this study. Reports from the CDB/RM were generated from 2006 to 2011. Continuous variable differences across VAP status were examined using Wilcoxon two-sample tests. Primary analyses used multilevel linear mixed model methods to estimate the effects of VAPs on primary outcomes (average length of stay, cost, morbidity, mortality. Association components of the linear mixed models incorporated random effects at the hospital level and robust, Huber-White, standard errors were calculated. There was no significant difference for average length of stay, direct cost, morbidity, and mortality between academic medical centers with and without VAPs. However, outcomes were not noted to be substantially worse.Conclusion: Numerous case studies reveal that aggressively active VAPs do decrease hospital cost. Also, this study did not find a negative impact on patient care. Further studies are needed to explore the benefits of value analysis and its effect on patient outcomes.Keywords: value analysis, average length of stay, morbidity, mortality

  20. A feasibility study for a manufacturing technology deployment center

    Energy Technology Data Exchange (ETDEWEB)

    1994-10-31

    The Automation & Robotics Research Institute (ARRI) and the Texas Engineering Extension Service (TEEX) were funded by the U.S. Department of Energy to determine the feasibility of a regional industrial technology institute to be located at the Superconducting Super Collider (SSC) Central Facility in Waxahachie, Texas. In response to this opportunity, ARRI and TEEX teamed with the DOE Kansas City Plant (managed by Allied Signal, Inc.), Los Alamos National Laboratory (managed by the University of California), Vought Aircraft Company, National Center for Manufacturing Sciences (NCMS), SSC Laboratory, KPMG Peat Marwick, Dallas County Community College, Navarro Community College, Texas Department of Commerce (TDOC), Texas Manufacturing Assistance Center (TMAC), Oklahoma Center for the Advancement of Science and Technology, Arkansas Science and Technology Authority, Louisiana Productivity Center, and the NASA Mid-Continent Technology Transfer Center (MCTTC) to develop a series of options, perform the feasibility analysis and secure industrial reviews of the selected concepts. The final report for this study is presented in three sections: Executive Summary, Business Plan, and Technical Plan. The results from the analysis of the proposed concept support the recommendation of creating a regional technology alliance formed by the states of Texas, New Mexico, Oklahoma, Arkansas and Louisiana through the conversion of the SSC Central facility into a Manufacturing Technology Deployment Center (MTDC).

  1. Quantitative and qualitative assessment of structural magnetic resonance imaging data in a two-center study

    International Nuclear Information System (INIS)

    Multi-center magnetic resonance imaging (MRI) studies present an opportunity to advance research by pooling data. However, brain measurements derived from MR-images are susceptible to differences in MR-sequence parameters. It is therefore necessary to determine whether there is an interaction between the sequence parameters and the effect of interest, and to minimise any such interaction by careful choice of acquisition parameters. As an exemplar of the issues involved in multi-center studies, we present data from a study in which we aimed to optimize a set of volumetric MRI-protocols to define a protocol giving data that are consistent and reproducible across two centers and over time. Optimization was achieved based on data quality and quantitative measures, in our case using FreeSurfer and Voxel Based Morphometry approaches. Our approach consisted of a series of five comparisons. Firstly, a single-center dataset was collected, using a range of candidate pulse-sequences and parameters chosen on the basis of previous literature. Based on initial results, a number of minor changes were implemented to optimize the pulse-sequences, and a second single-center dataset was collected. FreeSurfer data quality measures were compared between datasets in order to determine the best performing sequence(s), which were taken forward to the next stage of testing. We subsequently acquired short-term and long-term two-center reproducibility data, and quantitative measures were again assessed to determine the protocol with the highest reproducibility across centers. Effects of a scanner software and hardware upgrade on the reproducibility of the protocols at one of the centers were also evaluated. Assessing the quality measures from the first two datasets allowed us to define artefact-free protocols, all with high image quality as assessed by FreeSurfer. Comparing the quantitative test and retest measures, we found high within-center reproducibility for all protocols, but lower

  2. Quantitative and qualitative assessment of structural magnetic resonance imaging data in a two-center study

    Directory of Open Access Journals (Sweden)

    Chalavi Sima

    2012-08-01

    Full Text Available Abstract Background Multi-center magnetic resonance imaging (MRI studies present an opportunity to advance research by pooling data. However, brain measurements derived from MR-images are susceptible to differences in MR-sequence parameters. It is therefore necessary to determine whether there is an interaction between the sequence parameters and the effect of interest, and to minimise any such interaction by careful choice of acquisition parameters. As an exemplar of the issues involved in multi-center studies, we present data from a study in which we aimed to optimize a set of volumetric MRI-protocols to define a protocol giving data that are consistent and reproducible across two centers and over time. Methods Optimization was achieved based on data quality and quantitative measures, in our case using FreeSurfer and Voxel Based Morphometry approaches. Our approach consisted of a series of five comparisons. Firstly, a single-center dataset was collected, using a range of candidate pulse-sequences and parameters chosen on the basis of previous literature. Based on initial results, a number of minor changes were implemented to optimize the pulse-sequences, and a second single-center dataset was collected. FreeSurfer data quality measures were compared between datasets in order to determine the best performing sequence(s, which were taken forward to the next stage of testing. We subsequently acquired short-term and long-term two-center reproducibility data, and quantitative measures were again assessed to determine the protocol with the highest reproducibility across centers. Effects of a scanner software and hardware upgrade on the reproducibility of the protocols at one of the centers were also evaluated. Results Assessing the quality measures from the first two datasets allowed us to define artefact-free protocols, all with high image quality as assessed by FreeSurfer. Comparing the quantitative test and retest measures, we found high within-center

  3. The Woodlands Metro Center energy study. Case studies of project planning and design for energy conservation

    Energy Technology Data Exchange (ETDEWEB)

    1980-03-01

    Appendix II of The Woodlands Metro Center Energy Study near Houston consists of the following: Metro Center Program, Conventional Plan Building Prototypes and Detail Parcel Analysis, Energy Plan Building Prototypes, and Energy Plan Detail Parcel Analysis.

  4. Usability Studies and User-Centered Design in Digital Libraries

    Science.gov (United States)

    Comeaux, David J.

    2008-01-01

    Digital libraries continue to flourish. At the same time, the principles of user-centered design and the practice of usability testing have been growing in popularity, spreading their influence into the library sphere. This article explores the confluence of these two trends by surveying the current literature on usability studies of digital…

  5. Environmental Studies Center Teacher Books. 4th Grade - Mangrove Communities.

    Science.gov (United States)

    Martin County Schools, Jensen Beach, FL. Environmental Studies Center.

    This teacher's guide, one of nine teacher packages developed for use in the sequential, hands-on, field-oriented, K-8 environmental education program of the Martin County Schools in Florida, was developed for use with elementary children in grade four prior to and after a visit to an environmental studies center located near an estuarine area. The…

  6. Comparison of baseline data between chronic kidney disease patients starting hemodialysis who live near and far from the dialysis center

    Directory of Open Access Journals (Sweden)

    Paulo Roberto Santos

    2014-09-01

    Full Text Available Introduction: The treatment offered to chronic kidney disease (CKD patients before starting hemodialysis (HD impacts prognosis. Objective: We seek differences among incident HD patients according to the distance between home and the dialysis center. Methods: We included 179 CKD patients undergoing HD. Patients were stratified in two groups: "living near the dialysis center" (patients whose hometown was in cities up to 100 km from the dialysis center or as "living far from the dialysis center" (patients whose hometown was more than 100 km from the dialysis center. Socioeconomic status, laboratory results, awareness of CKD before starting HD, consultation with nephrologist before the first HD session, and type of vascular access when starting HD were compared between the two groups. Comparisons of continuous and categorical variables were performed using Student's t-test and the Chi-square test, respectively. Results: Ninety (50.3% patients were classified as "living near the dialysis center" and 89 (49.7% as "living far from the dialysis center". Patients living near the dialysis center were more likely to know about their condition of CKD than those living far from the dialysis center, respectively 46.6% versus 28.0% (p = 0.015. Although without statistical significance, patients living near the dialysis center had more frequent previous consultation with nephrologists (55.5% versus 42.6%; p = 0.116 and first HD by fistula (30.0% versus 19.1%; p = 0.128 than those living far from the dialysis center. Conclusion: There are potential advantages of CKD awareness, referral to nephrologists and starting HD through fistula among patients living near the dialysis center.

  7. ORAM and shutdown PRA comparison study

    International Nuclear Information System (INIS)

    A comparison study between results obtained from an Outage Risk Assessment and Management (ORAM) model and a shutdown Probabilistic Risk Analysis (PRA) model was conducted. The purpose of the study was to provide useful risk information for better outage planning by focusing resources and contingency plans on risk significant configurations. The comparison study used selected configurations from the 8th refueling outage of the Hope Creek Generation Station (HCGS), a Boiling Water Reactor (BWR). A total of Eleven configurations were compared. Three configurations were selected to evaluate the impact of the Service Water System during the early stage of a refueling outage. (There are existing studies suggesting that the designed redundancy of Service Water Systems is needed during the early stage of a shutdown.) Four configurations were selected because they were deemed risk significant by the ORAM analysis. (For configurations deemed risk significant by ORAM results, compensatory actions have been taken and contingency plans have been developed to mitigate potential deviations from the configuration. The shutdown PRA was used to evaluate the necessity and effectiveness of these contingency plans and compensatory actions.) To increase the comparison population, an additional four configurations were randomly selected. Thus, a total of 15 configurations were evaluated by the shutdown PRA, and a total of 11 configurations were studied by the ORAM. (author)

  8. Fire analog: a comparison between fire plumes and energy center cooling tower plumes

    Energy Technology Data Exchange (ETDEWEB)

    Orgill, M.M.

    1977-10-01

    Thermal plumes or convection columns associated with large fires are compared to thermal plumes from cooling towers and proposed energy centers to evaluate the fire analog concept. Energy release rates of mass fires are generally larger than for single or small groups of cooling towers but are comparable to proposed large energy centers. However, significant physical differences exist between cooling tower plumes and fire plumes. Cooling tower plumes are generally dominated by ambient wind, stability and turbulence conditions. Fire plumes, depending on burning rates and other factors, can transform into convective columns which may cause the fire behavior to become more violent. This transformation can cause strong inflow winds and updrafts, turbulence and concentrated vortices. Intense convective columns may interact with ambient winds to create significant downwind effects such as wakes and Karman vortex streets. These characteristics have not been observed with cooling tower plumes to date. The differences in physical characteristics between cooling tower and fire plumes makes the fire analog concept very questionable even though the approximate energy requirements appear to be satisfied in case of large energy centers. Additional research is suggested in studying the upper-level plume characteristics of small experimental fires so this information can be correlated with similar data from cooling towers. Numerical simulation of fires and proposed multiple cooling tower systems could also provide comparative data.

  9. Comparison Study Of Multiobjective Evolutionary Algorithms

    OpenAIRE

    Syomkin, A. M.

    2004-01-01

    Many real-world problems involve two types of difficulties: 1) multiple, conflicting objectives and 2) a highly complex search space. Efficient evolutionary strategies have been developed to deal with both difficulties. Evolutionary algorithms possess several characteristics such as parallelism and robustness that make them preferable to classical optimization methods. In the presented paper I conducted comparison studies among the well-known evolutionary algorithms based on NP-hard 0-1 multi...

  10. Hydraulic fracture model comparison study: Complete results

    Energy Technology Data Exchange (ETDEWEB)

    Warpinski, N.R. [Sandia National Labs., Albuquerque, NM (United States); Abou-Sayed, I.S. [Mobil Exploration and Production Services (United States); Moschovidis, Z. [Amoco Production Co. (US); Parker, C. [CONOCO (US)

    1993-02-01

    Large quantities of natural gas exist in low permeability reservoirs throughout the US. Characteristics of these reservoirs, however, make production difficult and often economic and stimulation is required. Because of the diversity of application, hydraulic fracture design models must be able to account for widely varying rock properties, reservoir properties, in situ stresses, fracturing fluids, and proppant loads. As a result, fracture simulation has emerged as a highly complex endeavor that must be able to describe many different physical processes. The objective of this study was to develop a comparative study of hydraulic-fracture simulators in order to provide stimulation engineers with the necessary information to make rational decisions on the type of models most suited for their needs. This report compares the fracture modeling results of twelve different simulators, some of them run in different modes for eight separate design cases. Comparisons of length, width, height, net pressure, maximum width at the wellbore, average width at the wellbore, and average width in the fracture have been made, both for the final geometry and as a function of time. For the models in this study, differences in fracture length, height and width are often greater than a factor of two. In addition, several comparisons of the same model with different options show a large variability in model output depending upon the options chosen. Two comparisons were made of the same model run by different companies; in both cases the agreement was good. 41 refs., 54 figs., 83 tabs.

  11. The NASA Lewis Research Center: An Economic Impact Study

    Science.gov (United States)

    Austrian, Ziona

    1996-01-01

    The NASA Lewis Research Center (LeRC), established in 1941, is one of ten NASA research centers in the country. It is situated on 350 acres of land in Cuyahoga County and occupies more than 140 buildings and over 500 specialized research and test facilities. Most of LeRC's facilities are located in the City of Cleveland; some are located within the boundaries of the cities of Fairview Park and Brookpark. LeRC is a lead center for NASA's research, technology, and development in the areas of aeropropulsion and selected space applications. It is a center of excellence for turbomachinery, microgravity fluid and combustion research, and commercial communication. The base research and technology disciplines which serve both aeronautics and space areas include materials and structures, instrumentation and controls, fluid physics, electronics, and computational fluid dynamics. This study investigates LeRC's economic impact on Northeast Ohio's economy. It was conducted by The Urban Center's Economic Development Program in Cleveland State University's Levin College of Urban Affairs. The study measures LeRC's direct impact on the local economy in terms of jobs, output, payroll, and taxes, as well as the indirect impact of these economic activities when they 'ripple' throughout the economy. To fully explain LeRC's overall impact on the region, its contributions in the areas of technology transfer and education are also examined. The study uses a highly credible and widely accepted research methodology. First, regional economic multipliers based on input-output models were used to estimate the effect of LERC spending on the Northeast Ohio economy. Second, the economic models were complemented by interviews with industrial, civic, and university leaders to qualitatively assess LeRC's impact in the areas of technology transfer and education.

  12. Study of feasibility of daycare surgery in tertiary health center

    Directory of Open Access Journals (Sweden)

    J.B. Hedawoo

    2016-04-01

    Full Text Available Aim: To study the feasibility of daycare surgery in a tertiary care center. Background: Day care surgery is advantageous to patient in terms of early recovery less hospital stay, less rate of complications. Now a-days number of day care surgeries has increased and nearly 50 percent surgeries in western countries are done on daycare basis. Methods: This is Hospital Based observational study carried out in Department of Surgery in tertiary care center over the period from August 2013 to November 2015. Results: 300 patients selected for day care surgery in our institute. Among the 300 patients, males were 284(94.7%, females were 16 (5.3%. All patients discharge within 23 hr of surgery and follow up on 3rd day, 7th day, 1 month and 6 month. Age ranged from 1 to 80 years and mean age was 32.68+/-21.94 years. The procedures performed included surgery for inguinal hernia in 103(34.3%, appendicitis in 49 (16.3%, hydrocele in 45(15%, surgery for congenital hernia in 46(15.3% and phimosis in 40(13.3% patients. On evaluation of complications assessed at follow-up after 3 days, 8 patients had infection, on 7th day 1 patient had infection and 1 had reinfection, none of the patients required re-admission. Conclusions: Our study showed that daycare surgery is feasible in tertiary health center and advantageous to patient with low rates of complications.

  13. CENTER FOR PULSED POWER DRIVEN HIGH ENERGY DENSITY PLASMA STUDIES

    Energy Technology Data Exchange (ETDEWEB)

    Professor Bruce R. Kusse; Professor David A. Hammer

    2007-04-18

    This annual report summarizes the activities of the Cornell Center for Pulsed-Power-Driven High-Energy-Density Plasma Studies, for the 12-month period October 1, 2005-September 30, 2006. This period corresponds to the first year of the two-year extension (awarded in October, 2005) to the original 3-year NNSA/DOE Cooperative Agreement with Cornell, DE-FC03-02NA00057. As such, the period covered in this report also corresponds to the fourth year of the (now) 5-year term of the Cooperative Agreement. The participants, in addition to Cornell University, include Imperial College, London (IC), the University of Nevada, Reno (UNR), the University of Rochester (UR), the Weizmann Institute of Science (WSI), and the P.N. Lebedev Physical Institute (LPI), Moscow. A listing of all faculty, technical staff and students, both graduate and undergraduate, who participated in Center research activities during the year in question is given in Appendix A.

  14. A comparative study of Spacecraft Control Centers and SCADA Systems

    Energy Technology Data Exchange (ETDEWEB)

    Maisonobe, L. [CS, 31 - Toulouse (France); Poupart, E. [CNES Centre spatial de Toulouse, 31 (France)

    2009-07-01

    SCADA systems as used in fusion physics or industrial plants and control centers as used in space systems share the same global goal: monitoring and controlling a remote complex and costly device securely. These two fields have developed parallel technologies when facing similar concerns but up to now they have not exchanged much information and experience together. This paper is a comparison between SCADA systems and Spacecraft Control Centers (SCC), seen from the space field side. The first part of the paper explains the purpose of a SCC and its place in the ground segment of a global space system. The second part dives into the architectural and functional aspects of SCC and SCADA systems. It attempts to extract a common underlying structure and identify the specificities of each domain. It appears that many things are already generic enough and that similar solutions brought by current state of the art technology are used in both fields (mimics, trend analysis, soft points/derived parameters...). Some discrepancies appear however even for concepts that are not dedicated to the science field. They may come from historical reasons or priorities. As an example, the networking and computing aspects sometimes differ. The third part starts from these discrepancies to show how space systems have evolved and how there are made now. One major change was a switch from proprietary to open protocols started a long time ago and mostly visible in the standardization committees. In addition to the space specific standards acknowledged by spacecraft, launchers, tracking stations or control centers manufacturers, the wider industry standards are also mandatory (ethernet, TCP/IP...). Ground segments are now often built from separate components coming from various providers, some custom made, some generic, some open-source, some new, some reused. The life cycle of an operational system being quite long (typically 20 years) with regard to the fast pace of computing industry, this

  15. A comparative study of Spacecraft Control Centers and SCADA Systems

    International Nuclear Information System (INIS)

    SCADA systems as used in fusion physics or industrial plants and control centers as used in space systems share the same global goal: monitoring and controlling a remote complex and costly device securely. These two fields have developed parallel technologies when facing similar concerns but up to now they have not exchanged much information and experience together. This paper is a comparison between SCADA systems and Spacecraft Control Centers (SCC), seen from the space field side. The first part of the paper explains the purpose of a SCC and its place in the ground segment of a global space system. The second part dives into the architectural and functional aspects of SCC and SCADA systems. It attempts to extract a common underlying structure and identify the specificities of each domain. It appears that many things are already generic enough and that similar solutions brought by current state of the art technology are used in both fields (mimics, trend analysis, soft points/derived parameters...). Some discrepancies appear however even for concepts that are not dedicated to the science field. They may come from historical reasons or priorities. As an example, the networking and computing aspects sometimes differ. The third part starts from these discrepancies to show how space systems have evolved and how there are made now. One major change was a switch from proprietary to open protocols started a long time ago and mostly visible in the standardization committees. In addition to the space specific standards acknowledged by spacecraft, launchers, tracking stations or control centers manufacturers, the wider industry standards are also mandatory (ethernet, TCP/IP...). Ground segments are now often built from separate components coming from various providers, some custom made, some generic, some open-source, some new, some reused. The life cycle of an operational system being quite long (typically 20 years) with regard to the fast pace of computing industry, this

  16. Vegetation studies, National Training Center, Fort Irwin, California

    Energy Technology Data Exchange (ETDEWEB)

    Brandt, C.A.; Rickard, W.H.; Cadoret, N.A.

    1997-09-01

    During the spring of 1992, the Pacific Northwest National Laboratory (PNNL) conducted surveys of the Avawatz and Granite mountains springs for the National Training Center (NTC) to evaluate the occurrence of sensitive plant species in these areas. PNNL also conducted a survey of the eastern outwash of the Paradise Range for the occurrence of Lane Mountain milk vetch (Astragalus jaegerianus). In spring of 1993, PNNL conducted an additional study of Lane Mountain milk vetch on the NTC to determine habitat characteristics for this plant and to develop a method for predicting its potential occurrence, based on simple habitat attributes. The results of these studies are itemized.

  17. Study of color centers induced by PIXE irradiation

    International Nuclear Information System (INIS)

    The particle induced X-ray emission method is perfectly adapted to the study, by external beam, of art objects (like paintings) and allows non-destructive analysis of the atomic composition of the target. However, a strange phenomenon occurs during irradiation on some pigments: dark brownish stains appear, and this could be due to the formation of color centers. In fact, these darkening spots progressively fade out and disappear after a few weeks. Heat and UV light accelerate the decreasing process. The aim of this study is to understand the physical processes of the stain creation and to find a way to make stains disappear, avoiding any damage for the painting

  18. A Study on Self Centering of Face Bows

    OpenAIRE

    Veerareddy, Chandrika; Srividya, S.; Chandrasekharan Nair, K.; Shetty, Jayakar; Vishwanath, G.

    2010-01-01

    Hanau spring bow has been in use since 1986. Hanau spring bow is claimed to maintain self centering property when it is positioned in the patient as well as in the articulator. However there is no documented evidence to prove that feature. Mainly it was due to the absence of a testing device. Exclusively for the present study, the testing device consisting of a platform, stops and distance measuring system was designed by the third author. This study proved that Hanau has the capability of se...

  19. Study of color centers induced by PIXE irradiation

    CERN Document Server

    Absil, J; Strivay, D; Oger, C; Weber, G

    2002-01-01

    The particle induced X-ray emission method is perfectly adapted to the study, by external beam, of art objects (like paintings) and allows non-destructive analysis of the atomic composition of the target. However, a strange phenomenon occurs during irradiation on some pigments: dark brownish stains appear, and this could be due to the formation of color centers. In fact, these darkening spots progressively fade out and disappear after a few weeks. Heat and UV light accelerate the decreasing process. The aim of this study is to understand the physical processes of the stain creation and to find a way to make stains disappear, avoiding any damage for the painting.

  20. 40 CFR 761.326 - Conducting the comparison study.

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 30 2010-07-01 2010-07-01 false Conducting the comparison study. 761...-liquid PCB Remediation Waste Samples § 761.326 Conducting the comparison study. Extract or analyze the comparison study samples using the alternative method. For an alternative extraction method or...

  1. A Comparison of Two Electrophysiology Centers in Different Social And Economic Regions Of Turkey During First Quarter of the Year

    Directory of Open Access Journals (Sweden)

    Osman Can Yontar

    2014-02-01

    Full Text Available Introduction: More and more patients have been undergoing electrophysiological study (EPS as the number of rhythmologists have increased. Due to the increased interest in the study, today EPS applications are made even in second step public hospitals or private hospitals. Our aim is to compare two electrophysiology labs, that are in different regions with social and economic development, in terms of patient demography, diagnosis, amount of diagnostic and curative interventions. Materials and Methods: In this study, two centers from two different regions of Turkey were selected; a training and research center (center 1 in the Western part and a public hospital (center 2 in the Eastern part of the country. Records of the patients who undergone EPS in these two centers were retrospectively analyzed. Independent parametric data were evaluated by T-test, and categorical data via Mann-Whitney U test. A p value below 0.05 was accepted for significance. Results: A total of 83 patients were retrospectively analyzed (42 from center 1, 41 from center 2. Patients’ baseline demographic data was similar except intellectual status. Nevertheless, both groups differed based on the number of patients with diagnosis of atrioventricular reciprocating tachycardia (p=0.047. There was a significant difference in procedure types. Center 1 performed significantly higher number of curative procedures (p=0.039 than center 2. Conclusions: Nowadays, EPS is spread from specialized centers to middle-sized hospitals. Since specialized centers have more access to the advanced devices such as electro-anatomic mapping rather than conventional equipment, they are evaluating more complex cases with a variety of different diagnosis. Constructing a referral system from peripheral hospitals to distinguished centers in electrophysiology field would eliminate unnecessary and/or repeated procedures and decrease the expenses.

  2. Electromyographic comparison of grand battement devant at the barre, in the center, and traveling.

    Science.gov (United States)

    Krasnow, Donna; Ambegaonkar, Jatin P; Wilmerding, M Virginia; Stecyk, Shane; Koutedakis, Yiannis; Wyon, Matthew

    2012-09-01

    This study examined utilization of the trunk and lower extremity muscles during grand battement devant in three conditions: at the barre (supported stationary condition in 1st position), in the center (unsupported stationary condition in 1st position), and traveling through space. Forty dancers (age 30.0 ± 13.0 yrs, height 1.63 ± 0.06 m, weight 59.0 ± 7.4 kg, and 13.9 ± 13.3 yrs of training in ballet and/or modern dance) volunteered and were placed in three skill level groups: beginner (n = 12), intermediate (n = 14), and advanced (n = 14). Dancers executed five grand battement devant in each of the three conditions in randomized order. We examined muscle activation bilaterally in eight muscles (abdominals, abductor hallucis, erector spinae, gastrocnemius, gluteus maximus, hamstrings, quadriceps, and tibialis anterior) using surface electromyography, a three-dimensional video biomechanical tracking system to identify events, and force plates. All data were analyzed in four events: stance, initiation, peak, and end. Analysis was done using a linear mixed effects regression model with condition, event, muscle, level, and side as the fixed effects, and subject as the random effect. There were significant effects for muscle x event x condition (p<0.01) and for level x side x muscle (p<0.01). Muscle use varied according to the combination of event and condition that was executed, and these differences were also influenced by the level of training of the dancer and the side of the body used. It is recommended that dance educators consider the importance of allocating sufficient time to each of the three conditions (barre, center, and traveling) to ensure development of a variety of motor strategies and muscle activation levels for dance practice. PMID:22983132

  3. Service utilization in community health centers in China: a comparison analysis with local hospitals

    Directory of Open Access Journals (Sweden)

    Wang Xiaohang

    2006-08-01

    Full Text Available Abstract Background Being an important part of China's Urban Health Care Reform System, Community Health Centers (CHCs have been established throughout the entire country and are presently undergoing substantial reconstruction. However, the services being delivered by the CHCs are far from reaching their performance targets. In order to assess the role of the CHCs, we examined their performance in six cities located in regions of South-East China. The purpose of this investigation was to identify the utilization and the efficiency of community health resources that are able to provide basic medical and public health services. Methods The study was approved by Peking University Health Science Center Institutional Reviewing Board (NO: IRB00001052-T1. Data were collected from all the local health bureaux and processed using SPSS software. Methods of analysis mainly included: descriptive analysis, paired T-test and one-way ANOVA. Results The six main functions of the CHCs were not fully exploited and the surveys that were collected on their efficiency and utilization of resources indicate that they have a low level of performance and lack the trust of local communities. Furthermore, the CHCs seriously lack funding support and operate under difficult circumstances, and residents have less positive attitudes towards them. Conclusion The community health service must be adjusted according to the requirements of urban medical and health reform, taking into account communities' health needs. More research is required on the living standards and health needs of residents living within the CHC's range, taking into consideration the users' needs in expanding the newly implemented service, and at the same time revising the old service system so as to make the development of CHCs realistic and capable of providing a better service to patients. Several suggestions are put forward for an attainable scheme for developing a community health service.

  4. Comparison of three tests of homogeneity of odds ratios in multicenter trials with unequal sample sizes within and among centers

    Directory of Open Access Journals (Sweden)

    Ayatollahi Seyyed Mohammad Taghi

    2011-04-01

    Full Text Available Abstract Background Mixed effects logistic models have become a popular method for analyzing multicenter clinical trials with binomial data. However, the statistical properties of these models for testing homogeneity of odds ratios under various conditions, such as within-center and among-centers inequality, are still unknown and not yet compared with those of commonly used tests of homogeneity. Methods We evaluated the effect of within-center and among-centers inequality on the empirical power and type I error rate of the three homogeneity tests of odds ratios including likelihood ratio (LR test of a mixed logistic model, DerSimonian-Laird (DL statistic and Breslow-Day (BD test by simulation study. Moreover, the impacts of number of centers (K, number of observations in each center and amount of heterogeneity were investigated by simulation. Results As compared with the equal sample size design, the power of the three tests of homogeneity will decrease if the same total sample size, which can be allocated equally within one center or among centers, is allocated unequally. The average reduction in the power of these tests was up to 11% and 16% for within-center and among-centers inequality, respectively. Moreover, in this situation, the ranking of the power of the homogeneity tests was BD≥DL≥LR and the power of these tests increased with increasing K. Conclusions This study shows that the adverse effect of among-centers inequality on the power of the homogeneity tests was stronger than that of within-center inequality. However, the financial limitations make the use of unequal sample size designs inevitable in multicenter trials. Moreover, although the power of the BD is higher than that of the LR when K≤6, the proposed mixed logistic model is recommended when K≥8 due to its practical advantages.

  5. Comparison of Capsule Endoscopy Findings to Subsequent Double Balloon Enteroscopy: A Dual Center Experience

    Directory of Open Access Journals (Sweden)

    Amandeep S. Kalra

    2015-01-01

    Full Text Available Background. There has been a growing use of both capsule endoscopy (CE and double balloon enteroscopy (DBE to diagnose and treat patients with obscure gastrointestinal blood loss and suspected small bowel pathology. Aim. To compare and correlate sequential CE and DBE findings in a large series of patients at two tertiary level hospitals in Wisconsin. Methods. An IRB approved retrospective study of patients who underwent sequential CE and DBE, at two separate tertiary care academic centers from May 2007 to December 2011, was performed. Results. 116 patients were included in the study. The mean age ± SD was 66.6 ± 13.2 years. There were 56% males and 43.9% females. Measure of agreement between prior capsule and DBE findings was performed using kappa statistics, which gave kappa value of 0.396 with P<0.001. Also contingency coefficient was calculated and was found to be 0.732 (P<0.001. Conclusions. Our study showed good overall agreement between DBE and CE. Findings of angioectasia had maximum agreement of 69%.

  6. Comparison of motor and cognitive performance of children attending public and private day care centers

    Directory of Open Access Journals (Sweden)

    Mariana M. Santos

    2013-12-01

    Full Text Available BACKGROUND: Given that environmental factors, such as the school environment, can influence child development, more attention should be paid to the development of children attending day care centers. OBJECTIVE: Todetermine whether there are differences in the gross motor, fine motor, or cognitive performances of children between 1 and3 years-old of similar socioeconomic status attending public and private day care centers full time. METHOD: Participants were divided into 2 groups, 1 of children attending public day care centers (69 children and another of children attending private day care centers (47 children. All children were healthy and regularly attended day care full time for over 4 months. To assess cognitive, gross and fine motor performance, the Bayley Scales of Infant and Toddler Development III was used. The Mann-Whitney test was used for comparative analyses between groups of children between 13 and 24 months, 25 and 41 months, and 13 and 41 months. RESULTS: Children in public day care centers exhibited lower scores on the cognitive development scale beginning at 13 months old. The fine and gross motor performance scores were lower in children over the age of 25 months attending public centers. Maternal education was not related to the performance of children in either group. CONCLUSION: The scores of cognitive performance as well as fine and gross motor performance of children of similar socioeconomic status who attend public day care centers are lower than children attending private daycare centers.

  7. Comparison of Service Centers and Document Data Bases--A User's View

    Science.gov (United States)

    O'Donohue, C. H.

    1973-01-01

    An analysis of five commercial service centers and various data bases is presented. A current awareness profile covering both chemical and botanical fields was sent to each service center. The responses were evaluated on the basis of promptness, interaction with the user, and physical format of the listing, among other things. (Author/NH)

  8. New Mexico Center for Particle Physics: Studies of fundamental interactions

    International Nuclear Information System (INIS)

    The New Mexico Center/UNM group research program includes the CDF experiment at Fermilab and the SDC experiment at the SSC. In both experiments the UNM group research focuses on silicon strip tracking systems. The present research goals are to develop and utilize precision silicon tracking to increase significantly the physics reach of the Tevatron, and to make possible the study of high-Pt physics at the SSC. The search for the t-quark in CDF is the primary goal of the upcoming Tevatron runs. This Progress Report summarizes our research accomplishments from the last year

  9. New Mexico Center for Particle Physics: Studies of fundamental interactions

    Energy Technology Data Exchange (ETDEWEB)

    Matthews, J.A.J.

    1992-01-01

    The New Mexico Center/UNM group research program includes the CDF experiment at Fermilab and the SDC experiment at the SSC. In both experiments the UNM group research focuses on silicon strip tracking systems. The present research goals are to develop and utilize precision silicon tracking to increase significantly the physics reach of the Tevatron, and to make possible the study of high-P[sub t] physics at the SSC. The search for the t-quark in CDF is the primary goal of the upcoming Tevatron runs. This Progress Report summarizes our research accomplishments from the last year.

  10. Case study: a data warehouse for an academic medical center.

    Science.gov (United States)

    Einbinder, J S; Scully, K W; Pates, R D; Schubart, J R; Reynolds, R E

    2001-01-01

    The clinical data repository (CDR) is a frequently updated relational data warehouse that provides users with direct access to detailed, flexible, and rapid retrospective views of clinical, administrative, and financial patient data for the University of Virginia Health System. This article presents a case study of the CDR, detailing its five-year history and focusing on the unique role of data warehousing in an academic medical center. Specifically, the CDR must support multiple missions, including research and education, in addition to administration and management. Users include not only analysts and administrators but clinicians, researchers, and students. PMID:11452578

  11. Blanket comparison and selection study. Volume I

    International Nuclear Information System (INIS)

    The objectives of the Blanket Comparison and Selection Study (BCSS) can be stated as follows: (1) Define a small number (approx. 3) of blanket design concepts that should be the focus of the blanket R and D program. A design concept is defined by the selection of all materials (e.g., breeder, coolant, structure and multiplier) and other major characteristics that significantly influence the R and D requirements. (2) Identify and prioritize the critical issues for the leading blanket concepts. (3) Provide the technical input necessary to develop a blanket R and D program plan. Guidelines for prioritizing the R and D requirements include: (a) critical feasibility issues for the leading blanket concepts will receive the highest priority, and (b) for equally important feasibility issues, higher R and D priority will be given to those that require minimum cost and short time

  12. Study of a conceptual nuclear energy center at Green River, Utah. Power demand, load center assessment and transmission

    International Nuclear Information System (INIS)

    This document constitutes a segment of a feasibility study investigating the ramification of constructing a nuclear energy center in an arid western region. In this phase of the study. The projected power demands and load center locations were reviewed and assessed. Alternative transmission systems were analysed and a conceptual transmission for bulk power transportation is proposed with potential line routes. Environmental impacts of the proposed transmission were also identified

  13. Emergency call centers and large scale incidents: A comparison of the operators' perspective and a resilience model

    OpenAIRE

    2013-01-01

    A key feature of civil safety is the ability to respond to unwanted incidents. The first link in the response chain is usually the emergency call centers, and the purpose of this study was to investigate the work at an emergency call center in connection with large scale incidents. The delivery of the study is two-fold: firstly, a bottom-up analysis was performed in order to outline work at the emergency call center during large scale incidents. This approach resulted in a content model depic...

  14. A comparative study of Spacecraft Control Centers and SCADA Systems

    International Nuclear Information System (INIS)

    In order to assure the remote control in fusion machines or in industrial processes, SCADA (Supervisory Control and Data Acquisition) systems are used while the remote control of space systems is assured by satellite control centers (SCC). In this series of slides the author studies the similarities, constraints and differences of both systems, the presentation is a view from the space side. The first similarity is the geographic distribution: globally one nominal control center and numerous worker/ research staff in many countries. SCC and SCADA scope commonalities include no direct access to the machine, no big red stop button, and large number of interdependent and highly dynamic parameters. Among functional commonalities we have synopsis, alarms or trend analysis for monitoring and for control we have on-board automatism, high speed on-board loop and low speed network loop for human decision and reflex actions. In space systems scheduling is a core task because access times depend on orbit and ground stations and there are very few security aspects except for launch and reliability is assured through hardware redundancy. (A.C.)

  15. Micrometeorological study of the emplacement at the Ezeiza Atomic Center

    International Nuclear Information System (INIS)

    An evaluation of meteorological conditions searched at the Ezeiza Atomic Center is presented by means of the data obtained at the micrometeorological station of the Atomic Center during the period January-December 1979. The daily and yearly mean behaviour of the temperature, humidity and wind's directions and speed is shown as well as extreme values persistence of temperature and humidity, the annual behaviour of the precipitation and its relation with the wind's direction. Special attention is given to the atmospheric dispersion characteristic through the study of the low-wind-speed persistence, wind direction persistence and wind's direction distribution confronted with the stability classes. An evaluation of the dispersion factor or normalized concentration, both for short term releases (1 hour), as well as long term releases (time integrated concentration annual factor) is shown. Those factors are representative for mean situations; they can not be employed for isolated situations. Finally, it is emphasized that although the results were obtained by means of 1979 data, significative differences are no expected for other years. (M.E.L.)

  16. Comparison between dispersed nuclear power plants and a nuclear energy center at a hypothetical site on Kentucky Lake, Tennessee

    International Nuclear Information System (INIS)

    The thermal, ecological, and social impacts of a 40-reactor NEC are compared to impacts from four 10-reactor NECs and ten 4-reactor power plants. The comparison was made for surrogate sites in western Tennessee. The surrogate site for the 40-reactor NEC is located on Kentucky Lake. A layout is postulated for ten clusters of four reactors each with 2.5-mile spacing between clusters. The plants use natural-draft cooling towers. A transmission system is proposed for delivering the power (48,000 MW) to five load centers. Comparable transmission systems are proposed for the 10-reactor NECs and the 4-reactor dispersed sites delivering power to the same load centers

  17. Thermoluminescence Dosimetry Studies at the Philippine Atomic Research Center

    International Nuclear Information System (INIS)

    Thermoluminescence dosimetry studies have been initiated at the Philippine Atomic Research Center of the Philippine Atomic Energy Commission. A recalibration of the equipment indicates a divergence from supplied calibration curves, especially with regard to the dark current. Operating currents and heating temperatures also show a statistical uncertainty of approximately 7%. Gamma-dose calibrations were undertaken using a 60Co gamma garden previously mapped with an R-meter and chemical dosimeters. Neutron dose calibrations have been attempted using the Philippine research reactor. Some isodose curves in a dry gamma room from a 20 000 Ci 60Co source inside the PRR-I reactor pool were presented. The values of parameters α, β, Np, N0 were obtained for both unannealed LiF and annealed LiF. The values fitted the model of thermoluminescence versus dose suggested by Cameron et al. Using the same model the values of these parameters were obtained for CaSO4 : Mn. (author)

  18. Life Sciences Division and Center for Human Genome Studies 1994

    Energy Technology Data Exchange (ETDEWEB)

    Cram, L.S.; Stafford, C. [comp.

    1995-09-01

    This report summarizes the research and development activities of the Los Alamos National Laboratory`s Life Sciences Division and the biological aspects of the Center for Human Genome Studies for the calendar year 1994. The technical portion of the report is divided into two parts, (1) selected research highlights and (2) research projects and accomplishments. The research highlights provide a more detailed description of a select set of projects. A technical description of all projects is presented in sufficient detail so that the informed reader will be able to assess the scope and significance of each project. Summaries useful to the casual reader desiring general information have been prepared by the group leaders and appear in each group overview. Investigators on the staff of the Life Sciences Division will be pleased to provide further information.

  19. Gnathic osteosarcomas: A 10-year multi-center demographic study

    Directory of Open Access Journals (Sweden)

    T Azizi

    2009-01-01

    Full Text Available Background: Osteosarcomas (OS of the jaws are uncommon lesions representing 6-8% of skeletal OS. We assessed the characteristics, demographics, prevalence clinical and histopathological findings and distribution of gnathic OS relative to non-gnathic OS in four major treatment centers. Materials and Methods: This study assessed 13 gnathic OS patients of 98 OS patients from four major referral centers during 1996-2007. The age distribution, gender, involved site, clinical findings, signs, symptoms, grade and sub-types were assessed. Hematoxylin-eosin, Picrosirius red, Ponceau trichrome, Masson trichrome and osteoid staining methods were used. Results: Of the 98 OS lesions, 85 (86.8% involved the skeleton, the youngest patient was 6 and the oldest 60 years old; 13 lesions (13.2% involved the jaws (seven mandibular and six maxillary and the youngest and oldest patients were 15 and 50 years-old, respectively. Non-gnathic OS was more prevalent between the ages of 11 and 20 years (avg. 15 years and was common in the distal femur and proximal tibia, presenting most frequently with pain and swelling. OS of the jaws, however, presented more than 10 years later than non-gnathic OS, being more prevalent between the ages of 20 and 30 years (avg. 27 years. OS of the jaws most frequently involved the mandibular body and the posterior maxillary alveolar ridge, presenting frequently with pain, swelling and loosening of teeth. Two patients with gnathic OS died during the 10-year follow-up period (15.3%. Conclusion: Prevalence of OS of the jaws was about twice as high as that reported in other studies and presented later than non-gnathic cases. Pain and swelling were common signs and symptoms in this disease. The mixed sub-type was the most common sub-type of gnathic OS.

  20. A multi-center comparison of diagnostic methods for the biochemical evaluation of suspected mitochondrial disorders.

    Science.gov (United States)

    Rodenburg, R J T; Schoonderwoerd, G C; Tiranti, V; Taylor, R W; Rötig, A; Valente, L; Invernizzi, F; Chretien, D; He, L; Backx, G P B M; Janssen, K J G M; Chinnery, P F; Smeets, H J; de Coo, I F; van den Heuvel, L P

    2013-01-01

    A multicenter comparison of mitochondrial respiratory chain and complex V enzyme activity tests was performed. The average reproducibility of the enzyme assays is 16% in human muscle samples. In a blinded diagnostic accuracy test in patient fibroblasts and SURF1 knock-out mouse muscle, each lab made the correct diagnosis except for two complex I results. We recommend that enzyme activities be evaluated based on ratios, e.g. with complex IV or citrate synthase activity. In spite of large variations in observed enzyme activities, we show that inter-laboratory comparison of patient sample test results is possible by using normalization against a control sample. PMID:23164799

  1. The BirthPlace collaborative practice model: results from the San Diego Birth Center Study.

    Science.gov (United States)

    Swartz; Jackson; Lang; Ecker; Ganiats; Dickinson; Nguyen

    1998-07-01

    Objective: The search for quality, cost-effective health care programs in the United States is now a major focus in the era of health care reform. New programs need to be evaluated as alternatives are developed in the health care system. The BirthPlace program provides comprehensive perinatal services with certified nurse-midwives and obstetricians working together in an integrated collaborative practice serving a primarily low-income population. Low-risk women are delivered by nurse-midwives in a freestanding birth center (The BirthPlace), which is one component of a larger integrated health network. All others are delivered by team obstetricians at the affiliated tertiary hospital. Wellness, preventive measures, early intervention, and family involvement are emphasized. The San Diego Birth Center Study is a 4-year research project funded by the U.S. Federal Agency for Health Care Policy and Research (#R01-HS07161) to evaluate this program. The National Birth Center Study (NEJM, 1989; 321(26): 1801-11) described the advantages and safety of freestanding birth centers. However, a prospective cohort study with a concurrent comparison group of comparable risk had not been conducted on a collaborative practice-freestanding birth center model to address questions of safety, cost, and patient satisfaction.Methods: The specific aims of this study are to compare this collaborative practice model to the traditional model of perinatal health care (physician providers and hospital delivery). A prospective cohort study comparing these two health care models was conducted with a final expected sample size of approximately 2,000 birth center and 1,350 traditional care subjects. Women were recruited from both the birth center and traditional care programs (private physicians offices and hospital based clinics) at the beginning of prenatal care and followed through the end of the perinatal period. Prenatal, intrapartum, postpartum and infant morbidity and mortality are being

  2. Comparison of the Quality of Preschoolers' Play in Housekeeping and Thematic Sociodramatic Play Centers.

    Science.gov (United States)

    Bagley, Donna M.; Klass, Patricia H.

    1997-01-01

    Documented differences in the quality of play in thematic and housekeeping organizational patterns of the sociodramatic play center in a preschool classroom. Found the thematic organization resulted in higher quality sociodramatic play in which the children enacted more roles outside the home, utilized more aspects of their roles, demonstrated…

  3. Cooperative Research Paired Trawl Sweep Comparison Study

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — In the spring of 2009, Northeast Fisheries Science Center (NEFSC) replaced the previous standard bottom trawl gear (Yankee 36) with a new standard survey trawl...

  4. Comparative study of Treponemal and non-Treponemal test for screening of blood donated at a blood center

    OpenAIRE

    Naidu, Narinder Kaur; Bharucha, Z. S.; Sonawane, Vandana; Ahmed, Imran

    2012-01-01

    The non-Treponemal tests such as Rapid Plasma Reagin test (RPR) or the Venereal Disease Reference Laboratory test are the most commonly used test for screening of syphilis in the blood centers in India. Now, with the availability of Enzyme-linked immunosorbent assay (ELISA) and Immunochromatographic assays in the market, we decided to evaluate these assays in comparison with Treponema pallidum Haemagglutination Assay (TPHA) which was considered as a gold standard for this study. A total of 8 ...

  5. Economic feasibility study of regional centers for nuclear fuel reprocessing in the developing countries

    International Nuclear Information System (INIS)

    The fuel cycle costs for the following three different economic alternatives were studied: (1) Reprocessing in an industrialized country (such as the U.S.); (2) Reprocessing in the individual developing country; (3) Reprocessing in a regional center. The nuclear fuel cycle cost for the ''Throw-away'' fuel cycle was evaluated. Among the six regions which were considered in this study, region one (South America including Mexico) was selected for the economic analysis of the nuclear fuel cycle for the above three alternatives. For evaluation of the cases where the fuel is reprocessed in a regional center or in an individual developing country, a unit reprocessing cost equation was developed. An economic evaluation was developed to estimate the least expensive method for transporting radioactive nuclear material by either leased or purchased shipping casks. The necessary equations were also developed for estimating plutonium transportation and the safeguard costs. On the basis of nuclear material and services requirements and unit costs for each component, the levelized nuclear fuel cycle costs for each alternative were estimated. Finally, by a comparison of cost, among these three alternatives plus the ''Throw-away'' case,it was found that it is not at all economical to build individual reprocessing plants inside the developing countries in region one. However, it also was found that the economic advantage of a regional center with respect to the first alternative is less than a 4% difference between their total fuel cycle costs. It is concluded that there is no great economic advantage in any developing countries to seek to process their fuel in one of the advanced countries. Construction of regional reprocessing centers is an economically viable concept

  6. A Market Study for the Center for the Performing Arts.

    Science.gov (United States)

    Rae, John; And Others

    In fall 1983, a telephone survey was conducted by Macomb Community College (MCC) to assess community perceptions of the college's Center for the Performing Arts (CPA) and to aid in developing marketing strategies for the Center. Interviews were conducted with 500 randomly selected Macomb County (Michigan) residents to determine if they had…

  7. Service utilization in community health centers in China: a comparison analysis with local hospitals

    OpenAIRE

    Wang Xiaohang; Dib Hassan H; Pan Xilong; Zhang Hong

    2006-01-01

    Abstract Background Being an important part of China's Urban Health Care Reform System, Community Health Centers (CHCs) have been established throughout the entire country and are presently undergoing substantial reconstruction. However, the services being delivered by the CHCs are far from reaching their performance targets. In order to assess the role of the CHCs, we examined their performance in six cities located in regions of South-East China. The purpose of this investigation was to ide...

  8. Comparison of the socioeconomic impacts of international fuel service centers versus dispersed nuclear facilities

    International Nuclear Information System (INIS)

    The paper investigates a variety of community impacts including: public services, fiscal issues, economic matters, land and water use, political and social cohesion, and legal considerations. Comparisons of socioeconomic impacts of colocated versus dispersed sites are made on the basis of the size of the impacted communities, the size and type of nuclear facility, and the facility's construction time frame. The paper concludes that, under similar circumstances, most of the socioeconomic impacts of colocated nuclear facilities would be somewhat less than the sum of the impacts associated with equivalent dispersed sites. While empirical data is non-existent, the paper contends, however, that because the socioeconomic impacts of colocated facilities are so great and readily identifiable to a public unskilled in making comparisons with the dispersed alternative, the facilities will likely generate so much public opposition that IFSCs will probably prove infeasible

  9. Comparison of the socioeconomic impacts of international fuel service centers versus dispersed nuclear facilities

    Energy Technology Data Exchange (ETDEWEB)

    Braid, Jr., R. B.

    1979-01-01

    The paper investigates a variety of community impacts including: public services, fiscal issues, economic matters, land and water use, political and social cohesion, and legal considerations. Comparisons of socioeconomic impacts of colocated versus dispersed sites are made on the basis of the size of the impacted communities, the size and type of nuclear facility, and the facility's construction time frame. The paper concludes that, under similar circumstances, most of the socioeconomic impacts of colocated nuclear facilities would be somewhat less than the sum of the impacts associated with equivalent dispersed sites. While empirical data is non-existent, the paper contends, however, that because the socioeconomic impacts of colocated facilities are so great and readily identifiable to a public unskilled in making comparisons with the dispersed alternative, the facilities will likely generate so much public opposition that IFSCs will probably prove infeasible.

  10. A multi-center comparison of diagnostic methods for the biochemical evaluation of suspected mitochondrial disorders

    OpenAIRE

    Rodenburg, R.J.T.; Schoonderwoerd, G.C.; Tiranti, V.; Taylor, R. W.; Rötig, A; Valente, L.; Invernizzi, F.; CHRETIEN, D.; He, L.; Backx, G.P.B.M.; Janssen, K.J.G.M.; Chinnery, P. F.; Smeets, H.J.; De Coo, I F; L. P. van den Heuvel

    2013-01-01

    A multicenter comparison of mitochondrial respiratory chain and complex V enzyme activity tests was performed. The average reproducibility of the enzyme assays is 16% in human muscle samples. In a blinded diagnostic accuracy test in patient fibroblasts and SURF1 knock-out mouse muscle, each lab made the correct diagnosis except for two complex I results. We recommend that enzyme activities be evaluated based on ratios, e.g. with complex IV or citrate synthase activity. In spite of large varia...

  11. Comparative Study of Customer Satisfaction for Four Service Center by Using House of Quality (HoQ)

    International Nuclear Information System (INIS)

    The comparative study between four service center was constructed from the development of House of Quality (HoQ). HoQ is a simple and attractive service innovation tool which can be used to directly show a comprehensive information which contained the voice of customer (VOC), technical response, technical correlation and matrix relationship. The indirect information is a report on technical and planning part which shows the comparison between four service center. This study revealed that the information from HoQ with further discussion on planning part which can be used to assist management in knowing the overall detail information of service center achievement and recognizes the solution for unsatisfied customer through priority improvement activity to enhance the customer satisfaction in future. (author)

  12. Penn/VA center for studies of addiction.

    Science.gov (United States)

    O'Brien, Charles P; McLellan, A Thomas; Childress, Anna Rose; Woody, George E

    2009-01-01

    The Penn/VA Center was founded in 1971 because of great concern over the number of Vietnam veterans returning home addicted to heroin. At that time little was known about the science of addiction, so our program from the very beginning was designed to gather data about the nature of addiction and measure the effects of available treatments. In other words, the goals were always a combination of treatment and research. This combination has continued to the present day. A human laboratory for the study of addiction phenomena such as conditioned responses was also founded in 1971. The key clinician investigators in this group have remained in the Center since the 1970s with most of the research staff continuing to work together. Important new investigators have been added over the years. Treatment was empirically based with randomized, controlled clinical trials as the gold standard for determining evidence-based treatment. The patients coming to treatment do not distinguish between abuse of alcohol and other drugs, so the treatment and research programs have always focused on all drugs including ethyl alcohol and the combination of ethyl alcohol with other drugs such as cocaine and opioids. Most of the patients coming for treatment also suffered from additional psychiatric disorders such as depression, anxiety, bipolar disorder or schizophrenia. Thus, the addiction treatment program in 1980 absorbed the rest of the VA Psychiatry Service into the Substance Abuse Program forming a new Behavioral Health Service with responsibility for over 9000 patients. The integration of substance abuse treatment with overall mental health care was the most efficient way to handle patients with complicated combinations of disorders. While this continues to be the best way to treat patients, it has proven difficult in practice. The main reason for this difficulty is that most mental health therapists whether they are psychiatrists, psychologists or social workers feel very inadequate

  13. Data Information for Global Change Studies: NASA's Distributed Active Archive Centers and Cooperating Data Centers

    Science.gov (United States)

    2000-01-01

    The Earth Observing System (EOS) is an integral part of the National Aeronautics and Space Administration's (NASA's) Earth Science Enterprise (ESE). ESE is a long-term global change research program designed to improve our understanding of the Earth's interrelated processes involving the atmosphere, oceans, land surfaces, and polar regions. Data from EOS instruments and other Earth science measurement systems are useful in understanding the causes and processes of global climate change and the consequences of human activities. The EOS Data and Information System (EOSDIS) provides a structure for data management and user services for products derived from EOS satellite instruments and other NASA Earth science data. Within the EOSDIS framework, the Distributed Active Archive Centers (DAACs) have been established to provide expertise in one or more Earth science disciplines. The DAACs and cooperating data centers provide data and information services to support the global change research community. Much of the development of the DAACs has been in anticipation of the enormous amount of data expected from EOS instruments to be launched within the next two decades. Terra, the EOS flagship launched in December 1999, is the first of a series of EOS satellites to carry several instruments with multispectral capabilities. Some data products from these instruments are now available from several of the DAACs. These and other data products can be ordered through the EOS Data Gateway (EDG) and DAAC-specific online ordering systems.

  14. Medication wrong route administration: a poisons center-based study

    OpenAIRE

    Bloch-Teitelbaum, Alexandra; Lüde, Saskia; Rauber-Lüthy, Christine; Kupferschmidt, Hugo; Russmann, Stefan; Kullak-Ublick, Gerd A.; Ceschi, Alessandro

    2013-01-01

    OBJECTIVES: To describe clinical effects, circumstances of occurrence, management and outcomes of cases of inadvertent administration of medications by an incorrect parenteral route. METHODS: Retrospective single-center consecutive review of parenteral route errors of medications, reported to our center between January 2006 and June 2010. We collected demographic data and information on medications, route and time of administration, severity of symptoms/signs, treatment, and outcome. RE...

  15. Experimental Comparison of 56 Gbit/s PAM-4 and DMT for Data Center Interconnect Applications

    DEFF Research Database (Denmark)

    Eiselt, Nicklas; Dochhan, Annika; Griesser, Helmut;

    2016-01-01

    Four-level pulse amplitude modulation (PAM-4) and discrete multi-tone transmission (DMT) in combination with intensity modulation and direct-detection are two promising approaches for a low-power and low-cost solution for the next generation of data center interconnect applications. We...... experimentally investigate and compare both modulation formats at a data rate of 56 Gb/s and a transmission wavelength of 1544 nm using the same experimental setup. We show that PAM-4 outperforms double sideband DMT and also vestigial sideband DMT for the optical back-to-back (b2b) case and also for a...

  16. Comparison of Orion Vision Navigation Sensor Performance from STS-134 and the Space Operations Simulation Center

    Science.gov (United States)

    Christian, John A.; Patangan, Mogi; Hinkel, Heather; Chevray, Keiko; Brazzel, Jack

    2012-01-01

    The Orion Multi-Purpose Crew Vehicle is a new spacecraft being designed by NASA and Lockheed Martin for future crewed exploration missions. The Vision Navigation Sensor is a Flash LIDAR that will be the primary relative navigation sensor for this vehicle. To obtain a better understanding of this sensor's performance, the Orion relative navigation team has performed both flight tests and ground tests. This paper summarizes and compares the performance results from the STS-134 flight test, called the Sensor Test for Orion RelNav Risk Mitigation (STORRM) Development Test Objective, and the ground tests at the Space Operations Simulation Center.

  17. Comparison between dispersed nuclear power plants and a nuclear energy center at a hypothetical site on Kentucky Lake, Tennessee. Volume II. Transmission of power

    International Nuclear Information System (INIS)

    A comparison is made among power transmission systems required to serve a single set of load center demands from four modes of siting the generating facilities: a single generation site with an ultimate generation capacity of 48,000 MW; four generation sites each with a generation capacity of 12,000 MW; 10 generation sites each with a generation capacity of 4,800 MW; and a system that resulted when the existing utility plan for future generation was logically expanded. The time period for the study is from the year 1985 to the year 2020, when the full 48,000 MW of new capacity from the single large nuclear energy center is on-line. The load centers served are Huntsville, Alabama; Evansville, Indiana; Paducah, Kentucky; and Chattanooga, Nashville, and Memphis, Tennessee. Generation sites are real locations but are hypothetical in terms of miles of transmission lines, the product of the amount of power transmitted and the distance transmitted (GW-miles), and cost

  18. Fire analog: a comparison between fire plumes and energy center cooling tower plumes

    International Nuclear Information System (INIS)

    Thermal plumes or convection columns associated with large fires have been compared to thermal plumes from cooling tower systems to evaluate the fire analog concept. Energy release rate of mass fires is generally larger than that of single or small groups of cooling towers but may be comparable to proposed large energy centers. However, siginficant physical differences exist between cooling tower and fire plumes. Cooling tower plumes are usually dominated by ambient wind and turbulence conditions. Fire plumes, depending on fire intensity and area, can transform into free convection energy systems resulting in convective columns, strong inflow and updrafts, turbulence and concentrated vortices. Since these characteristics have not been observed with cooling tower plumes to date, the fire analog concept is questionable at this time. Additional research is needed on fire and cooling tower plumes

  19. Comparison of LHC collimator beam-based alignment to BPM-Interpolated centers

    CERN Document Server

    Valentino, G; Assmann, R W; Bruce, R; Muller, G J; Redaelli, S; Rossi, A; Lari, L

    2012-01-01

    The beam centers at the Large Hadron Collider collimators are determined by beam-based alignment, where both jaws of a collimator are moved in separately until a loss spike is detected on a Beam LossMonitor downstream. Orbit drifts of more than a few hundred micrometers cannot be tolerated, as they would compromise the performance of the collimation system. Beam Position Monitors (BPMs) are installed at various locations around the LHC ring, and a linear interpolation of the orbit can be obtained at the collimator positions. In this paper, the results obtained from beam-based alignment are compared with the orbit interpolated from the BPM data throughout the 2011 and 2012 LHC proton runs.

  20. Challenges for Study Centers in an Electronic Age: A Case Study of the Center for Distance Education at the University of Oldenburg, Germany.

    Science.gov (United States)

    Bernath, Ulrich; Kleinschmidt, Axel; Walti, Christine; Zawacki, Olaf

    2003-01-01

    The Center for Distance Education at the University of Oldenburg began offering online tutorials with mentors in the 1990s. Virtual study centers using Lotus Learning Space as the online learning management system were created in 1999. Appropriate technical support, technology training, and preparation of mentors to be online teachers were…

  1. HMI/ SCADA standards in the design of data center interfaces: A network operations center case study

    Directory of Open Access Journals (Sweden)

    Said Filali-Yachou

    2015-01-01

    Full Text Available En este artículo se presenta la evaluación de las interfaces de la sala del Centro de Operaciones NOC (Network Operations Cent er del NAP (Network Access Point de Canarias, siguiendo estándares y normativas HMI, así como la guía ergonómica de supervisión GEDI S. En base a los resultados obtenid os, se presenta un prototipo de mejora de la interfaz actual.El Centro de Operaciones NOC del Instituto Tecnológico y de Energías Renovables (ITER se encarga de monit orizar las diversas infraestructuras del Data Center como son l a climatización, suminis tro eléctrico, protec ción contra incendio s, seguridad, centros técnicos, parques eólicos, plantas fotovo ltaicas, así como las distintas infraestructura s desplegadas alrededor del c able submarino perteneciente al consorcio de Cana-Link (el cabl e que une la Península y Canarias, el anillo terrestre y la Red IRIS. Para unificar algunos de estos sistemas y facilitar la tarea diaria de supervisión, se emplea un software SC ADA especializad o en la gestió n de edificios.

  2. Issues in clustered nuclear siting: a comparison of a hypothetical nuclear energy center in New Jersey with dispersed nuclear siting

    International Nuclear Information System (INIS)

    The report is an analysis of a hypothetical nuclear energy center (NEC) conducted in support of the recently completed study by the Nuclear Regulatory Commission, mandated by the Congress in the Energy Reorganization Act of 1974. The intent of the analysis of the hypothetical, or ''surrogate'', site was to inject a local and regional perspective into the assessment of technical, environmental, institutional, and socioeconomic issues which could be adequately addressed only by reference to a specific site. The hypothetical NEC site in Ocean County, New Jersey, was chosen to illustrate the problems and impacts of potential energy centers in coastal and near-coastal sites in relatively close proximity to large metropolitan areas. Earlier studies of hypothetical energy centers on the Mississippi River at River Bend, La., and on the Columbia River near Hanford, Washington, were also re-examined for their relevance to this new study effort. Neither Ocean County, nor any of the other surrogate sites, have been considered for actual construction of an NEC, nor does their selection for study purposes imply any judgement of desirability. Indeed, the major finding of the report presented is that Ocean County is a relatively poor location for an energy center, and this may well be true of many coastal locations similar to the Jersey shore. The objective in selecting surrogate sites, then, was not to find the best locations, but to select sites that would illustrate the broadest range of potential public policy and siting issues

  3. Famitinib in metastatic renal cell carcinoma: a single center study

    Institute of Scientific and Technical Information of China (English)

    ZHANG Wen; ZHOU Ai-ping; QIN Qiong; CHANG Chun-xiao; JIANG Hao-yuan; MA Jian-hui; WANG Jin-wan

    2013-01-01

    Background Famitinib is a novel and potent multitargeting receptor tyrosine kinase inhibitor.The phase I clinical study showed that famitinib was well tolerated and had a broad anti-tumor spectrum.The purpose of this study was to examine the efficacy and safety of famitinib for the treatment of metastatic renal cell carcinoma (mRCC).Methods The data of famitinib in treating patients with mRCC from the single-center phases Ⅰ and Ⅱ clinical trials were analyzed.Famitinib was administered orally at the dose of 13-30 mg once daily until tumor progression,occurrence of intolerable adverse reactions or withdrawal of the informed consent.Results A total of 24 patients with mRCC were treated including 17 patients at a dose of 25 mg once daily,4 patients at a dose of 27 mg and 1 patient each at a dose of 13 mg,20 mg and 30 mg,respectively.Twelve (50.0%) patients achieved partial response (PR) and 9 patients achieved stable disease (SD).Progressive disease was found in 3 (12.5%) patients.The disease control rate was 87.5%.The median follow-up time was 17.6 months; the median progression free survival (PFS) was 10.7 (95% Cl7.0-14.4) months; and the estimated median overall survival (OS) time was 33.0 (95% Cl8.7-57.3) months.The adverse drug reactions mainly included hypertension (54.1%),hand-foot skin reactions (45.8%),diarrhea (33.3%),mucositis (29.2%),neutropenia (45.8%),thrombocytopenia (29.2%),hyperlipidemia (41.7%) and proteinuria (41.7%).The incidence rate of grades 3 and 4 adverse events was low,mainly including hypertension 12.5%,hand-foot skin reactions 4.2%,neutropenia 4.2%,thrombocytopenia 4.2%,hyperlipidemia 4.2% and proteinuria 12.5%.Conclusions Famitinib has significant anti-tumor activity in mRCC.The common adverse reactions are generally manageable.

  4. Centers for Catholic Studies and the Public Voice of Religion

    Science.gov (United States)

    Brigham, Erin

    2011-01-01

    This article explores debates about the public role of religion in a secular context. Drawing on the work of critical theorist, Jurgen Habermas, this article claims that the United States requires a viable public sphere in which religious and secular voices can learn from each other. Highlighting the work of the Lane Center for Catholic Studies…

  5. Nuclear energy center site survey: fuel cycle studies

    International Nuclear Information System (INIS)

    Background information for the Nuclear Regulatory Commission Nuclear Energy Center Site Survey is presented in the following task areas: economics of integrated vs. dispersed nuclear fuel cycle facilities, plutonium fungibility, fuel cycle industry model, production controls and failure contingencies, environmental impact, waste management, emergency response capability, and feasibility evaluations

  6. A Comparison of Patient-Centered Care in Pharmacy Curricula in the United States and Europe

    Science.gov (United States)

    Nunes-da-Cunha, Ines; Arguello, Blanca; Martinez, Fernando Martinez

    2016-01-01

    Objective. To compare United States and European Higher Education Area (EHEA) undergraduate pharmacy curricula in terms of patient-centered care courses. Methods. Websites from all pharmacy colleges or schools in the United States and the 41 countries in the EHEA were retrieved from the FIP Official World List of Pharmacy Schools and investigated. A random sample of schools was selected and, based on analyses of course descriptions from syllabi, each course was classified into the following categories: social/behavioral/administrative pharmacy sciences, clinical sciences, experiential, or other/basic sciences. Results. Of 147 schools of pharmacy, 59 were included (23 in US and 36 in the EHEA). Differences existed in the percentages of credits/hours in all of the four subject area categories. Conclusion. Institutions in EHEA countries maintain a greater focus on basic sciences and a lower load of clinical sciences in pharmacy curricula compared to the United States. These differences may not be in accordance with international recommendations to educate future pharmacists focused on patient care. PMID:27402986

  7. Dimensionality of the Center for Epidemiologic Studies Depression Scale: an exploratory bi-factor analytic study

    OpenAIRE

    Fong, Ted C. T.; Chan, Cecilia L. W.; Ho, Rainbow T. H.; Jessie S. M. Chan; Chan, Celia H. Y.; Ng, S. M.

    2015-01-01

    Objective The Center for Epidemiologic Studies Depression Scale (CES-D) is a widely used instrument for measuring depressive symptoms. Though conventional factor analytic evaluations supported the use of four sub-scales for the CES-D, existing studies have yet to adopt the bi-factor analytic approach in psychometric assessment of the 20-item inventory. The present study aimed to apply both confirmatory factor analysis and exploratory bi-factor analysis to evaluate the dimensionality of the CE...

  8. New Mexico center for particle physics: Studies of fundmental interactions

    International Nuclear Information System (INIS)

    This report summarizes the results of the research program in the New Mexico Center during the last year and presents our program of proposed research for the next year. The majority of the New Mexico Center group's research involves the CDF experiment at the Tevatron pp collider at Fermilab. Our group is a leader in all of the SVX vertex detector upgrades for CDF. These vertex detectors are of critical importance to the pursuit of our physics interests at the Tevatron; they are also an imposing instrumentation challenge. Our group is also deeply involved in several CDF B-physics analyses and in an exotics search. Our research also includes important contributions to R ampersand D for the ATLAS experiment at the LHC

  9. The Study of Students-centered English Teaching at Colleges

    Institute of Scientific and Technical Information of China (English)

    WANG Xue-zhu

    2015-01-01

    The lack of communicative efficiency among students is still an important problem in China ’s English teaching circle. Learner-centered language teaching and learning approach proposed by Nunan and Breenin 1980s is the best one to solve the problem. This paper briefly presents the approach and mainly talks about how to apply the approach in the authentic teaching and learning situation. The adoption of this method will definitely promote the English teaching reform in China.

  10. The Center for Civil-Military Relations / Spanish Case Study

    OpenAIRE

    Thomas C. Bruneau

    2000-01-01

    The Center for Civil-Military Relations at the Naval Post-Graduate School (CCMR, Monterey, CA) is an implementing organization of the U.S. Department of Defense's Expanded-International Military Education and Training Program and has amassed both scholarly and practical expertise educating civilian and military defense professionals from more than 40 countries. CCMR was established in 1994 and is sponsored by the Defense Security Cooperation Agency (DSCA). CCMR conducts civi...

  11. The Study of Students-centered English Teaching at Colleges

    Institute of Scientific and Technical Information of China (English)

    王雪竹

    2015-01-01

    The lack of communicative efficiency among students is still an important problem in China’s English teaching circle.Learner-centered language teaching and learning approach proposed by Nunan and Breenin 1980s is the best one to solve the problem.This paper briefly presents the approach and mainly talks about how to apply the approach in the authentic teaching and learning situation.The adoption of this method will definitely promote the English teaching reform in China.

  12. Factors Affecting Customer Loyalty of Fitness Centers: An Empirical Study

    OpenAIRE

    Livia Vania Suwono; Sabrina Oktaria Sihombing

    2016-01-01

    Awareness of healthy lifestyle in society is increasing day by day. Therefore, the fitness centers more motivated to focus on these business opportunities. Hence, it is important for companies to understand how to satisfy consumers to obtain consumer loyalty. Main variables were applied to predict customer loyalties areswitching cost, customer value, physical environment, and customer satisfaction. Data was collected through questionnaires distribution to students at private university in Tan...

  13. The Colorado Center for Lunar Dust and Atmospheric Studies

    Science.gov (United States)

    Collette, A.; Gruen, E.; Horanyi, M.; Munsat, T.; Poppe, A. R.; Robertson, S. H.; Srama, R.; Shu, A. J.; Sternovsky, Z.; Wang, X.; Ccldas Team

    2010-12-01

    The Colorado Center for Lunar Dust and Atmospheric Studies (CCLDAS) is a member of the NASA Lunar Science Institute, focused on experimental and theoretical investigations of the lunar surface, including dusty plasma and impact processes, the origins of the lunar atmosphere, and the development of new instrument concepts, with a complementary program of education and community development. The tenuous lunar atmosphere is a surface-bound exosphere (SBE) similar to that found throughout the solar system, for example on Mercury, various icy satellites, over the rings of Saturn, on large asteroids, and on Kuiper Belt objects. Its time-dependent constituents arise from a dynamic balance between sources that may be sporadic (solar wind, sputtering, micrometeoroid impacts, outgassing) and loss mechanisms (escape, ionization), creating a natural dusty plasma laboratory. CCLDAS supports a diverse experimental program, performed in conjunction with theory and simulation, to investigate the near-surface lunar plasma environment, dust charging and mobilization, and the effects of micrometeoroids. The flagship device at CCLDAS is a dust accelerator, currently under construction, which will allow simulation of micrometeoroid impacts at speeds relevant to the lunar environment. The accelerator will be available for direct science investigation as well as instrument calibration; in addition to our own research program, the experimental facilities are open to the lunar and space physics community. One use will be to support the calibration of the Lunar Dust EXperiment (LDEX) instrument, scheduled for launch in 2013 onboard the Lunar Atmosphere and Dust Environment Explorer (LADEE) spacecraft. LDEX will measure the density and temporal variation of micron and submicron sized dust particles released from the lunar surface and elevated to > 30 km altitude by micrometeoroid bombardment and/or electrostatic forces. The new Lunar Environment and Impact Laboratory (LEIL) at CCLDAS

  14. Reference Charts for Height and Weight of School Children from West Malaysia in Comparison with the United States Centers for Disease Control and Prevention

    Directory of Open Access Journals (Sweden)

    AM Majid

    2012-02-01

    Full Text Available Background: Reference charts are widely used in healthcare as a screening tool. This study aimed to produce reference growth charts for school children from West Malaysia in comparison with the United States Centers for Disease Control and Prevention (CDC chart.Methods: A total of 14,360 school children ranging from 7 to 17 years old from six states in West Malaysia were collected. A two-stage stratified random sampling technique was used to recruit the subjects. Curves were adjusted using Cole's LMS method. The LOWESS method was used to smooth the data.Results: The means and standard deviations for height and weight for both genders are presented. The results showed good agreement with growth patterns in other countries, i.e., males tend to be taller and heavier than females for most age groups. Height and weight of females reached a plateau at 17 years of age; however, males were still growing at this age. The growth charts for West Malaysian school children were compared with the CDC 2000 growth charts for school children in the United States.Conclusion: The height and weight for males and females at the start of school-going ages were almost similar. The comparison between the growth charts from this study and the CDC 2000 growth charts indicated that the growth patterns of West Malaysian school children have improved, although the height and weight of American school children were higher than those for West Malaysian school children.

  15. Addressing underutilization of consumer health information resource centers: a formative study*

    Science.gov (United States)

    Kennedy, May G.; Kiken, Laura; Shipman, Jean P.

    2008-01-01

    Problem: Four consumer health information centers in Richmond, Virginia, provide one-on-one assistance in accessing health information. Because they may not be fully utilized at present, an exploratory marketing study of factors affecting usage of the centers was conducted. Method: Observers counted center passers-by and tracked their paths. Also, brief intercept interviews were conducted with people who had just used a center, people nearby who could have used one but did not, and people on the street. Finally, in-depth individual interviews were conducted with key informants. Results: There was a high degree of satisfaction with the centers among users. Nonusers universally endorsed the center concept. However, most passers-by did not even glance at the centers, and intercept interviewees suggested better signage and promoting the resource centers through various media channels. Key informants added suggestions about interpersonal strategies (e.g., physician referrals) for center usage promotion but cautioned that a large increase in traffic could not be accommodated without increasing staff size or shifting from a model of individualized service. Conclusions: Triangulating findings from multiple data collection methods can provide useful guidance for efforts to promote center utilization. At minimum, steps should be taken to make the largest centers more noticeable. Because center utilization is not only associated with consumer satisfaction with hospitals, but may also foster health literacy, both hospital-based and community-based usage promotion strategies may be warranted. All such promotional strategies should be audience-tested before they are adopted. PMID:18219380

  16. Clinical and functional outcomes of the PCCP study : a multi-center prospective study in Italy

    OpenAIRE

    Antonini, G.; Giancola, R.; D. Berruti; E. Blanchietti; Pecchia, P.; Francione, V.; Greco, P.; T.C. Russo; L. Pietrogrande

    2013-01-01

    The standard surgical management of hip fractures is associated with tissue trauma and bleeding which are added to the fracture injury. The percutaneous compression plate (PCCP) is a minimally invasive device that has been demonstrated in previous studies to reduce postoperative complications and blood loss. This prospective, multi-center, observational study assessed clinical and functional outcomes with PCCP as treatment for trochanteric fractures. Patients with a stable or unstable proxima...

  17. Spatial and temporal dynamics of visual search tasks distinguish subtypes of unilateral spatial neglect: Comparison of two cases with viewer-centered and stimulus-centered neglect.

    Science.gov (United States)

    Mizuno, Katsuhiro; Kato, Kenji; Tsuji, Tetsuya; Shindo, Keiichiro; Kobayashi, Yukiko; Liu, Meigen

    2016-08-01

    We developed a computerised test to evaluate unilateral spatial neglect (USN) using a touchscreen display, and estimated the spatial and temporal patterns of visual search in USN patients. The results between a viewer-centered USN patient and a stimulus-centered USN patient were compared. Two right-brain-damaged patients with USN, a patient without USN, and 16 healthy subjects performed a simple cancellation test, the circle test, a visuomotor search test, and a visual search test. According to the results of the circle test, one USN patient had stimulus-centered neglect and a one had viewer-centered neglect. The spatial and temporal patterns of these two USN patients were compared. The spatial and temporal patterns of cancellation were different in the stimulus-centered USN patient and the viewer-centered USN patient. The viewer-centered USN patient completed the simple cancellation task, but paused when transferring from the right side to the left side of the display. Unexpectedly, this patient did not exhibit rightward attention bias on the visuomotor and visual search tests, but the stimulus-centered USN patient did. The computer-based assessment system provided information on the dynamic visual search strategy of patients with USN. The spatial and temporal pattern of cancellation and visual search were different across the two patients with different subtypes of neglect. PMID:26059555

  18. The Teaching of Afro-Asian Literature: A Comparison between the Nonconventional Learner-Centered and the Conventional Teacher-Centered Approaches

    Science.gov (United States)

    Wong Gonzales, Wilkinson Daniel O.

    2014-01-01

    In the past few decades, nonconventional learner-centered (NLC) trends in ELT have emerged amidst the current and probably dominant conventional teacher-centered (CTC) approaches used by majority of private and public schools in the Philippines. With the implementation of the K-12 curriculum, Afro-Asian literature remained the focus of the eighth…

  19. Aerial Measuring System (AMS)/ Israel Atomic Energy Commission (IAEC) Joint Comparison Study

    International Nuclear Information System (INIS)

    In support of the U.S. Department of Energy (DOE) International Emergency Management and Cooperation (IEMC/NA-46) Program, the comparison of the U.S. and Israeli Aerial Measuring Systems (AMS) study was proposed and accepted. The study, organized by the DOE/National Nuclear Security Administration (NNSA) Remote Sensing Laboratory (RSL), involved the DOE/NNSA Aerial Measuring System Project based at the RSL and operated under a contractor agreement by National Security Technologies, LLC (NSTec), and the Israel Atomic Energy Commission (IAEC) Aerial Measuring System. The operational comparison was conducted at RSL-Nellis in Las Vegas, Nevada, during week of June 24–27, 2013. The Israeli system, Air RAM 2000 (figure 1, down), was shipped to RSL-Nellis and mounted together with the DOE Spectral Advanced Radiological Computer System, Model A (SPARCS-A, figure 1 up) on U.S. DOE Bell-412 helicopter for a series of aerial comparison measurements at local test ranges, including the Desert Rock Airport and Area 3 at the Nevada National Security Site (NNSS). A four-person Israeli team from the IAEC, Nuclear Research Center – Negev (NRCN) supported the activity. The main objective of this joint comparison was use the DOE/RSL Bell-412 helicopter aerial platform, perform the comparison study of measuring techniques and radiation acquisition systems utilized for emergency response by IEAC and NNSA AMS

  20. Fire analog: a comparison between fire plumes and energy center cooling tower plumes

    International Nuclear Information System (INIS)

    Past studies on the waste heat from thermal power plant cooling towers and proposed energy parks suggest that the dissipation of this waste energy may result in significant meteorological effects. Preliminary calculations have shown that the rate of atmospheric dissipation of the waste energy from groupings of cooling towers is approximately equal to that by geophysical phenomena such as thunderstorms, volcanoes, and large fires. Cumulus clouds and convective vortices often result from these natural energy releases. One of the geophysical analogs, the large fire, is evaluated in terms of how good a physical analog it is to cooling towers or groups of cooling towers. The literature on experimental and wild fires was reviewed in relation to how fire thermal plume characteristics may be typical of a thermal plume from cooling towers

  1. A comparison of speciated atmospheric mercury at an urban center and an upwind rural location

    Science.gov (United States)

    Rutter, A.P.; Schauer, J.J.; Lough, G.C.; Snyder, D.C.; Kolb, C.J.; Von Klooster, S.; Rudolf, T.; Manolopoulos, H.; Olson, M.L.

    2008-01-01

    Gaseous elemental mercury (GEM), particulate mercury (PHg) and reactive gaseous mercury (RGM) were measured every other hour at a rural location in south central Wisconsin (Devil's Lake State Park, WI, USA) between April 2003 and March 2004, and at a predominantly downwind urban site in southeastern Wisconsin (Milwaukee, WI, USA) between June 2004 and May 2005. Annual averages of GEM, PHg, and RGM at the urban site were statistically higher than those measured at the rural site. Pollution roses of GEM and reactive mercury (RM; sum of PHg and RGM) at the rural and urban sites revealed the influences of point source emissions in surrounding counties that were consistent with the US EPA 1999 National Emission Inventory and the 2003-2005 US EPA Toxics Release Inventory. Source-receptor relationships at both sites were studied by quantifying the impacts of point sources on mercury concentrations. Time series of GEM, PHg, and RGM concentrations were sorted into two categories; time periods dominated by impacts from point sources, and time periods dominated by mercury from non-point sources. The analysis revealed average point source contributions to GEM, PHg, and RGM concentration measurements to be significant over the year long studies. At the rural site, contributions to annual average concentrations were: GEM (2%; 0.04 ng m-3); and, RM (48%; 5.7 pg m-3). At the urban site, contributions to annual average concentrations were: GEM (33%; 0.81 ng m-3); and, RM (64%; 13.8 pg m-3). ?? The Royal Society of Chemistry.

  2. Study of Wireless Authentication Center with Mixed Encryption in WSN

    Directory of Open Access Journals (Sweden)

    Yiqin Lu

    2016-01-01

    Full Text Available WSN (wireless sensor network has been used in a wide range of applications nowadays. Sensor networks may often relay critical data; thus, security must be a high priority. However, due to their limited computational, energy, and storage resources, sensor nodes are vulnerable to attack. So how to protect sensor nodes from attacks without raising computational capability and energy consumption is a worthwhile issue. A WAC (wireless authentication center with mixed encryption named “MEWAC” is proposed. MEWAC is based on MCU (Microcontroller Unit and WiFi (Wireless Fidelity module and uses RSA, AES (Advanced Encryption Standard, and SHA-1 (Secure Hash Algorithm 1 to provide high performance authentication and data encryption services for sensor nodes. The experimental results show that MEWAC has the advantages of low cost, low power consumption, good performance, and stability; moreover, the authentication protocol improves the security of WSN and reduces the overhead in node authentication.

  3. Statistical Machines for Trauma Hospital Outcomes Research: Application to the PRospective, Observational, Multi-Center Major Trauma Transfusion (PROMMTT Study.

    Directory of Open Access Journals (Sweden)

    Sara E Moore

    Full Text Available Improving the treatment of trauma, a leading cause of death worldwide, is of great clinical and public health interest. This analysis introduces flexible statistical methods for estimating center-level effects on individual outcomes in the context of highly variable patient populations, such as those of the PRospective, Observational, Multi-center Major Trauma Transfusion study. Ten US level I trauma centers enrolled a total of 1,245 trauma patients who survived at least 30 minutes after admission and received at least one unit of red blood cells. Outcomes included death, multiple organ failure, substantial bleeding, and transfusion of blood products. The centers involved were classified as either large or small-volume based on the number of massive transfusion patients enrolled during the study period. We focused on estimation of parameters inspired by causal inference, specifically estimated impacts on patient outcomes related to the volume of the trauma hospital that treated them. We defined this association as the change in mean outcomes of interest that would be observed if, contrary to fact, subjects from large-volume sites were treated at small-volume sites (the effect of treatment among the treated. We estimated this parameter using three different methods, some of which use data-adaptive machine learning tools to derive the outcome models, minimizing residual confounding by reducing model misspecification. Differences between unadjusted and adjusted estimators sometimes differed dramatically, demonstrating the need to account for differences in patient characteristics in clinic comparisons. In addition, the estimators based on robust adjustment methods showed potential impacts of hospital volume. For instance, we estimated a survival benefit for patients who were treated at large-volume sites, which was not apparent in simpler, unadjusted comparisons. By removing arbitrary modeling decisions from the estimation process and concentrating

  4. Blanket comparison and selection study. Volume II

    International Nuclear Information System (INIS)

    This volume contains extensive data for the following chapters: (1) solid breeder tritium recovery, (2) solid breeder blanket designs, (3) alternate blanket concept screening, and (4) safety analysis. The following appendices are also included: (1) blanket design guidelines, (2) power conversion systems, (3) helium-cooled, vanadium alloy structure blanket design, (4) high wall loading study, and (5) molten salt safety studies

  5. Blanket comparison and selection study. Volume II

    Energy Technology Data Exchange (ETDEWEB)

    1983-10-01

    This volume contains extensive data for the following chapters: (1) solid breeder tritium recovery, (2) solid breeder blanket designs, (3) alternate blanket concept screening, and (4) safety analysis. The following appendices are also included: (1) blanket design guidelines, (2) power conversion systems, (3) helium-cooled, vanadium alloy structure blanket design, (4) high wall loading study, and (5) molten salt safety studies. (MOW)

  6. A study on confidential unit exclusion at Shiraz Blood Transfusion Center, Iran

    Science.gov (United States)

    Kasraian, Leila; Karimi, Mohammad Hossein

    2016-01-01

    Background: Confidential unit exclusion (CUE) system has been designed to enhance transfusion safety as an extra additive approach. Aims: This study was designed to survey demographic characteristics, prevalence of serologic markers, and reasons of opting CUE. Materials and Methods: The cross-sectional study was performed at Shiraz Blood Transfusion Center (Southern Iran). CUE is used for all individuals who refer for blood donation, and donors can choose their blood not to be used if they have any doubt about their blood suitability for transfusion. The prevalence rate of HIV, hepatitis B virus (HBV), and hepatitis C virus (HCV) was compared between the blood donors who opted into and out of CUE. Then, the donors were contacted to give another blood sample and the reasons of deferral. Researchers also determined whether their reasons were logical or not. Data were analyzed using comparison of proportions in MedCalc software 7. Results: Out of all the donors, 2365 ones (2.3%) opted for CUE. CUE was more frequent among men, singles, donors with low education levels, between 18 and 25 years old, and with history of previous donation (P 0.05). Furthermore, 91.5% of the donors had opted for CUE by mistake and only 8% had chosen CUE logically. Conclusion: It is necessary to review the process of CUE, make some changes both in procedure and design, and then survey its effectiveness in blood safety.

  7. Acoustic noise analysis of echo planar imaging. Multi-center trial and comparison with other pulse sequences

    International Nuclear Information System (INIS)

    The purpose of this study was to evaluate acoustic noise in echo planar imaging (EPI) at various magnetic resonance imaging (MRI) centers, and to compare EPI acoustic noise with that in other principal pulse sequences. We measured the maximum clinical acoustic noise (A-weighted root-mean-square sound pressure levels (Leq) and peak impulse sound pressure levels (Lpeak)) for EPI under the same conditions in five clinical superconducting MRI systems (0.5-1.5 T). We also compared the sound pressure levels for EPI and nine different pulse sequences, and analyzed the acoustic noise spectra. There was no significant difference between acoustic noise levels in EPI and other pulse sequences, and these values were within Occupational Safety and Health Administration guidelines at all centers. However, of all the pulse sequences, EPI had the greatest proportion of high-frequency acoustic noise (>1,000 Hz). Single-shot EPI was subject to higher-pitched noise than multi-shot EPI. Even among centers using the same magnet and gradient coil systems, there was considerable difference in acoustic noise levels (maximum differences in Leq and Lpeak were 7.0 dBA and 7.7 dB, respectively). (author)

  8. The First Study of Patient Safety Culture in Iranian Primary Health Centers

    OpenAIRE

    Mojtaba Sedaghat; Narges Tabrizchi

    2012-01-01

    Although the error in health care has received attention recently, patient safety culture in health centers has been relatively neglected. To measure the patient safety culture in primary health centers. A cross-sectional study, utilizing the modified version of the Hospital Survey on Patient Safety Culture (HSOPSC) developed by the Agency for Healthcare Research and Quality (AHRQ) and a demographic questionnaire. Healthcare staffs from health centers were participated in the survey. The pati...

  9. Study of Traces of Tritium at the World Trade Center

    Energy Technology Data Exchange (ETDEWEB)

    Semkow, T M; Hafner, S R; Parekh, P P; Wozniak, G J; Haines, D K; Husain, L; Rabun, R L; Williams, P G

    2002-10-01

    Traces of tritiated water (HTO) were detected at the World Trade Center (WTC) ground zero after the 9/11/01 terrorist attack. A water sample from the WTC sewer, collected on 9/13/01, contained 0.164 {+-} 0.074 (2 {sigma}) nCi/L of HTO. A split water sample, collected on 9/21/01 from the basement of WTC Building 6, contained 3.53 {+-} 0.17 and 2.83 {+-} 0.15 nCi/L, respectively. These results are well below the levels of concern to human exposure. Several water and vegetation samples were analyzed from sites outside ground zero, located in Manhattan, Brooklyn, Queens, and the Kensico and Croton Reservoirs. No HTO above the background was found in those samples. Tritium radioluminescent (RL) devices were investigated as possible sources of the traces of tritium at ground zero. It was determined that the two Boeing 767 aircraft that hit the Twin Towers contained a combined 34 Ci of tritium at the time of impact in their emergency exit signs. There is also evidence that many weapons from law enforcement were present and destroyed at WTC. Such weaponry contains by design tritium sights. The fate and removal of tritium from ground zero were investigated, taking into consideration tritium chemistry and water flow originating from the fire fighting, rain, as well as leaks from the Hudson River and broken mains. A box model was developed to describe the above scenario. The model is consistent with instantaneous oxidation of the airplane tritium in the jet-fuel explosion, deposition of a small fraction of HTO at ground zero, and water-flow controlled removal of HTO from the debris. The model also suggests that tritium from the weapons would be released and oxidized to HTO at a much slower rate in the lingering fires at ground zero.

  10. Stockbridge Munsee Community Health and Wellness Center and the Mohican Family Center Renewable Energy and Energy Efficiency Feasibility Study

    Energy Technology Data Exchange (ETDEWEB)

    DeRocher, Andy [Stockbridge-Munsee Health and Wellness Center, Bowler, WI (United States); Barrnett, Michael [Stockbridge-Munsee Health and Wellness Center, Bowler, WI (United States)

    2014-03-14

    The results of the Renewable Energy and Energy Efficiency Feasibility Study of Stockbridge Munsee Community’s Health and Wellness Center (HWC) indicate that a variety of renewable energy options and energy conservation measures (ECMs) exist for the facility. A requirement of the Request for Proposal for this study was to assess renewable energy options that could offset 30 to 100 percent of the HWC’s energy use. This study identifies that a geothermal system is the most cost effective renewable energy option available to decrease the HWC’s energy consumption by 30 to 100 percent. Currently the HWC performs in the lowest 8 percent of buildings in its building category, as scored in the EPA portfolio manager benchmarking tool. Multiple ECM opportunities have been identified with paybacks of less than five years to yield an estimated 25-percent decrease in annual energyconsumption. The ECMs within this payback period are estimated to save $26,800 per year with an implementation cost of just $4,650 (0.2 year payback). For the Mohican Family Center document: The results of the Renewable Energy and Energy Efficiency Feasibility Study of Stockbridge Munsee Community’s Mohican Family Center (MFC) indicate that a variety of renewable energy options and energy conservation measures (ECMs) exist for the facility. A requirement of the Request for Proposal for this study was to assess renewable energy options that could offset 30 to 100 percent of the MFC’s energy use. This study identifies that a geothermal system is the most cost effective renewable energy option available to decrease the MFC’s energy consumption by 30 to 100 percent. Currently the MFC performs better than 80 percent of buildings in its building category, as scored in the EPA portfolio manager benchmarking tool. Multiple ECM opportunities have been identified with short term paybacks to yield an estimated 13-percent decrease in energy consumption. The ECMs within this payback period are estimated

  11. Data and spatial studies of the USGS Texas Water Science Center

    Science.gov (United States)

    Burley, Thomas E.

    2014-01-01

    Hydrologists, geographers, geophysicists, and geologists with the U.S. Geological Survey (USGS) Texas Water Science Center (TXWSC) work in the USGS Water Mission Area on a diverse range of projects built on a foundation of spatial data. The TXWSC has developed sophisticated data and spatial-studies-related capabilities that are an integral part of the projects undertaken by the Center.

  12. Ectopic pregnancy in a tertiary care center: a retrospective study

    OpenAIRE

    Chaitra Shivananjaiah; Ashwini Nayak U.; Kamya Ramesh Swaminathan; Asha Swarup; Suneha Pocha; Davis Sabu Pathadan

    2016-01-01

    Background: Ectopic pregnancy is an obstetric emergency which if not diagnosed in time can cost the life of the patient. This emphasizes the importance of diagnosing this perilous condition and hence this study was undertaken to study symptoms with which the patients with ectopic pregnancy present. Methods: Retrospective study of 5 years was done in the department of Obstetrics and Gynecology, M. S. Ramaiah medical college and teaching hospital, Bangalore, India between January 2011 to Ja...

  13. Regulation of spent sealed sources: Comparison study

    International Nuclear Information System (INIS)

    Sealed sources are used throughout the world for a variety of peaceful purposes. The small size, portability, and potential value of sealed sources make them vulnerable to misuse, improper disposal, and theft. In addition, management schemes and practices implemented in different countries can be somewhat conflicting and create problems for storage and disposal. In view of the importance of the radiological risks associated in management of these sources, most countries have laid down a regulatory framework to control it. In Egypt, the spent sources are generated mainly from medical/hospital industrial and research applications. This study identifies the spent sealed sources stored at Egypt and considers the regulation and management of spent sealed sources in Egypt, Czech Republic, Hungary, Estonia, Poland and Slovenia. Comparing between the existing Egyptian situation, IAEA Code of conduct on the safety and security of radioactive sources and the situation of these countries we can prepare developed regulatory recommendation package to the government of Egypt addressing all aspects of sealed sources management in Egypt. This work is performed through the joint project Integrated Management Program for Radioactive Sealed Sources (IMPRSS) between the government of Egypt and Sandia National Laboratories U.S., funded by the U.S, Agency for International Development and implemented through the U.S. Department of Energy. (author)

  14. Monitoring of fungal loads in seabird rehabilitation centers with comparisons to natural seabird environments in northern California.

    Science.gov (United States)

    Burco, Julia D; Massey, J Gregory; Byrne, Barbara A; Tell, Lisa; Clemons, Karl V; Ziccardi, Michael H

    2014-03-01

    Aspergillosis remains a major cause of mortality in captive and rehabilitated seabirds. To date, there has been poor documentation of fungal (particularly Aspergillus spp.) burdens in natural seabird loafing and roosting sites compared with fungal numbers in rehabilitation or captive settings and the various microenvironments that seabirds are exposed to during the rehabilitation process. This study compares fungal, particularly Aspergillus spp., burdens potentially encountered by seabirds in natural and rehabilitation environments. Differences among the various microenvironments in the rehabilitation facility were evaluated to determine the risk of infection when seabirds are experiencing high stress and poor immune function. Aspergillus spp. counts were quantified in three wildlife rehabilitation centers and five natural seabird loafing and roosting sites in northern California using a handheld impact air sampler and a water filtration system. Wildlife rehabilitation centers demonstrated an increase in numbers of conidia of Aspergillus spp. and Aspergillus fumigatus in air and water samples from select aquatic bird rehabilitation centers compared with natural seabird environments in northern California. Various microenvironments in the rehabilitation facility were identified as having higher numbers of conidia of Aspergillus spp. These results suggest that periodic monitoring of multiple local areas, where the birds spend time in a rehabilitation facility, should be done to identify "high risk" sites, where birds should spend minimal time, or sites that should be cleaned more frequently or have improved air flow to reduce exposure to fungal conidia. Overall, these results suggest that seabirds may be more likely to encounter Aspergillus spp. in various microenvironments in captivity, compared with their native habitats, which could increase their risk of developing disease when in a debilitated state. PMID:24712159

  15. Pediatric thrombotic events: a single-center study.

    Science.gov (United States)

    van den Broek, Annika; Williams, Vaughan K; Revesz, Tamas; Suppiah, Ram

    2015-05-01

    Recent literature has reported an apparent increase in the incidence of pediatric venous thromboembolism over the last 10 years. In our study, data were collected from all children (ages 0 to 18 y) with a thrombotic event between January 2000 and May 2012, to determine whether an increased incidence of thromboembolism (TE) was evident and to investigate mitigating factors in the development of the TE. A total of 134 patients were entered into the study, 42% under the age of 1 year. There was no conclusive evidence of an increased incidence in our population over the period of the study. Within our population the peripheral venous system was the most common location for TE followed by cerebral vascular accidents. A thrombophilic risk factor was found in 84% of the patients. In our study 4.5% of the children had a second event. PMID:25887641

  16. Recent study on μSR experiment. Muonium center in crystalline semiconductors under illumination

    International Nuclear Information System (INIS)

    Positive muon and muonium atom serve as pseudo-isotopes of proton and hydrogen, providing very sensitive probes to study the electronic structure and dynamics of hydrogen isotopes in the material where the hydrogen plays an essential role in determining its property. A recent study on muonium centers in crystalline semiconductors is reviewed as an example of such systems. We have found that the muonium center at the tetrahedral interstitial site (MuT) is rapidly converted into bond center muonium (MuBC) with supervening fast spin relaxation under illumination at lower temperatures, evidensing that the bond center site is the ground state for the muonium while MuT is a metastable center. (author)

  17. Case studies of individualized professional development at an outdoor education center

    Science.gov (United States)

    Pearsall, Marjorie

    various activities and lessons while at the center, and the assessment of the student's learning following the experience. The staff works with each teacher to prepare them to use transdisciplinary science lessons which were planned to satisfy and enrich state, district, and school expectations (Outdoor Education Guidebook, 1997). The staff members believe that if the teachers are prepared to do these things, not only will the current students learn more, but that the teacher will experience growth professionally and this will impact more children over time. The teachers gain science content knowledge and learn constructivist teaching strategies while learning how to use the facilities and equipment safely and confidently. Ideas for preparatory and follow-up activities are made available. This study looked closely at the individualization of the professional development provided by this informal science institution. Data from observations of professional development sessions as well as the on-site experiences with the children were used in the study. Teachers were asked to reflect on the degree to which the Arlington Echo approach to professional development was beneficial in building their confidence about providing science-based, interdisciplinary experiences for their students, with comparisons made between the responses of veteran teachers and those of teachers with fewer years of experience. Through the reflections of the participant teachers, it was possible to gather data about whether their beliefs about science and about how science is best taught were modified by this experience.

  18. Ectopic pregnancy in a tertiary care center: a retrospective study

    Directory of Open Access Journals (Sweden)

    Chaitra Shivananjaiah

    2016-04-01

    Conclusions: It is very essential to study the symptoms of ectopic pregnancy as this may help in early detection of ectopic pregnancy and hence can reduce the mortality in this catastrophic condition. [Int J Reprod Contracept Obstet Gynecol 2016; 5(4.000: 962-964

  19. NRUSINHWADI AS A RELIGIOUS TOURIST CENTER: A GEOGRAPHICAL STUDY

    OpenAIRE

    Dilip A. Gade; J. P. Jagtap

    2014-01-01

    Religion is historically associated with tourism. Some of our most popular tourist places are found on ancient places of worship. Religious tourism has a big future in the district. Kolhapur district is richly endowed with ancient temples and religious festivals. The purpose of this study is to examine facilities available for tourist. Th

  20. Clustering of Unhealthy Behaviors in the Aerobics Center Longitudinal Study

    OpenAIRE

    Héroux, Mariane; Janssen, Ian; Lee, Duck-chul; Sui, Xuemei; Hebert, James R.; Blair, Steven N.

    2011-01-01

    Background Clustering of unhealthy behaviors has been reported in previous studies; however the link with all-cause mortality and differences between those with and without chronic disease requires further investigation. Objectives To observe the clustering effects of unhealthy diet, fitness, smoking, and excessive alcohol consumption in adults with and without chronic disease and to assess all-cause mortality risk according to the clustering of unhealthy behaviors. Methods Participants were ...

  1. 1976-77 Internal Revenue Service Comparison Study. Final Report.

    Science.gov (United States)

    Applied Management Sciences, Inc., Silver Spring, MD.

    Application forms for the Basic Educational Opportunity Grant (BEOG) program for 1976-1977 were compared to 1975 tax forms filed with the Internal Revenue Service (IRS). Comparisons were also made to data from a similar 1974-1975 study. Based on a sample of 212,263 applicants, findings include the following: during 1976-1977, 70.7 percent of all…

  2. 1979-80 Internal Revenue Service Comparison Study. Final Report.

    Science.gov (United States)

    Applied Management Sciences, Inc., Silver Spring, MD.

    Application forms for the Basic Educational Opportunity Grant (BEOG) program for 1979-1980 were compared to 1978 tax forms filed with the Internal Revenue Service (IRS). Comparisons were also made to data from similar 1974-1975 and 1976-1977 studies. Based on a sample of 407,596 applicants, findings include the following: between 1976-1977 and…

  3. Spatial analysis and site selection post centers using Geographical Information System (Case study: zone 5 & 6 of Isfahan city

    Directory of Open Access Journals (Sweden)

    H. Kiumarsi

    2012-01-01

    Full Text Available Extended abstract1- Introduction In recent decades, rapid growth of urban population,rural-urban migrations & urban regions natural population growth, made very difficults for big cities & metropolises of our country. Before of this time Cities that had little growth, with very new difficults faced. One of the Maine needs of urban populations is fine access to urban sevices. Accabilitiy is one of the Maine characterizes of a good city and can divide to diver shape of access such as activities, goods, resources and services.2- MethodologyPrimary, Effective alternatives of post center site selection converted for information layer with shape file format.In next stage, best buffer for any layers determined and for each considered range weigth between 1(lowest value & 5(higthest value. Because the entire information layer that used isn't equall effect in post center site selection and because to be many Layers, compare & determine value of each seems very difficult, so AHP technique used for weigthing and combaine layers. The export of this stage is land zoning for locating post centers in 5 ranges with amount of goodness: very much, much, mediane, low & very low. So, in order to determining poor regions, network analysis tools in GIS environment used and 750 meters of standard buffer access for exist centers designed and with period rank planning, the best sites for construction post centers in 3 periods(low, mediane & long determined.3- DiscussionIn case study (zone 5 & 6 of Isfahan city, that 5 post services center exist, bad spatial distribution & locating near of the maine roads, created very difficults for settelers for access to this services. So in this research primary effective factor in post center site selection distincted that involved information layer such as radiant access, access to roads, nearest to attractive centers such as: educations, military, cultural, religious centers, center of regions and far from exists post centers. So

  4. Highlighting High Performance: Adam Joseph Lewis Center for Environmental Studies, Oberlin College, Oberlin, Ohio

    Energy Technology Data Exchange (ETDEWEB)

    None

    2002-11-01

    Oberlin College’s Adam Joseph Lewis Center for Environmental Studies is a high-performance building featuring an expansive photovoltaic system and a closed-loop groundwater heat pump system. Designers incorporated energy-efficient components and materials

  5. Comparison of radiation doses obtained for radiation monitoring of controlled areas with radiation doses obtained for personnel dosimetry in radiodiagnosis centers

    International Nuclear Information System (INIS)

    In this paper we propose to search an indicator that shows, at an objective way, the quality of the radioprotection actions. The method is about to determine doses, measured in the work area, connecting them with the workload, and finally get the dose for the center. Them we make a comparison with the personal film dosimetry data. We discuss the final results, evaluating the radioprotection conditions in daily work. (author)

  6. A Simulation Model for Machine Efficiency Improvement Using Reliability Centered Maintenance: Case Study of Semiconductor Factory

    OpenAIRE

    Srisawat Supsomboon; Kanthapong Hongthanapach

    2014-01-01

    The purpose of this study was to increase the quality of product by focusing on the machine efficiency improvement. The principle of the reliability centered maintenance (RCM) was applied to increase the machine reliability. The objective was to create preventive maintenance plan under reliability centered maintenance method and to reduce defects. The study target was set to reduce the Lead PPM for a test machine by simulating the proposed preventive maintenance plan. The simulation optimizat...

  7. Do environmental influences alter motor abilities acquisition? A comparison among children from day-care centers and private schools

    Directory of Open Access Journals (Sweden)

    Barros Karla Mônica F. T. de

    2003-01-01

    Full Text Available Development occurs in a proper rhythm as result of genetic inheritance and environment factors. This study had the aim to identify some environmental risk factors for the motor development in two groups of healthy children. 100 pre-school aged (five years children from two day-care centers and a private school were evaluated, in Recife-PE. All the children underwent to a motor skills assessment and their parents answered a questionnaire. The children from the public nursery remained behind in fine motor skills. The results showed that the biologically healthy children development can suffer negative influence of the environmental risk factors. In this research these factors were: the father absence, improper toys use to the correct age, the place were the child was kept in the early childhood, the lack of pedagogical guidance and extra-parental socialization and low familiar socioeconomic status.

  8. Analysis on productivity of clinical studies across -- Asian countries a case comparison.

    Science.gov (United States)

    Takahashi, K; Sengoku, S; Kimura, H

    2007-08-01

    In an era of increasing global competition and an increased interest in global clinical studies Japan has been concerned with the risk of losing its attractiveness due to perceived longer execution times and higher cost structure. In contrast, other Asian countries particularly China and Singapore are widely recognized as potential key centers for fast conduction of global clinical studies. We conducted a case comparison based on two clinical studies performed by a multinational pharmaceutical company in order to measure the productivity of clinical studies by region and country. We focused on the site-related study cost which constituted the largest portion of the cost breakdown and also impacted both time and quality management. For investigation of the productivity we propose a breakdown model with two Key Performance Indicators (KPIs), enrollment efficiency and site-related cost efficiency, for the comparison of the number of enrolled subject per site and cost, respectively. Through the comparative analysis we found that the Asian countries (excluding Japan) on average achieved higher efficiency than Japan in both indicators. In the Asian group, China and Singapore stood out as the most efficient on both speed and site-related cost. However, when the site-related cost efficiency was adjusted for Purchasing Power Parity (PPP) the cost advantage in China disappeared, implying the price level was critical for productivity management. Although quality aspects remain to be investigated we postulate that introducing a comparative approach based on a productivity framework would be useful for an accurate productivity comparison. PMID:22504357

  9. XML Comparison of Knowledge and Practice of Private Clinical Laboratories and Educational Centers Staff in Shiraz about AIDS,2011

    Directory of Open Access Journals (Sweden)

    Rezaei MA

    2011-01-01

    Full Text Available Abstract Background and objectives: Acquired immune deficiency syndrome(AIDS is one of the most well-known disease in the world .It is not only A heaththrapeutic problem but also with politic ,social, cultural and economic aspects. Paying attention to high-risk groups such as Lab staff is important. we decided to study and compare the knowledge of public and private Laboratories staff. Material and Methods: This cross sectional study, descriptive-analytic,was conducted on 350 personnel of private laboratories and educational centers of Shiraz University of Medical Sciences,2011.We collected Information by using a questionnaire including three parts of demographic characteristic questions, questions about knowledge in different fields of AIDS and those related to the performance of personnel. The results were reported as tables and graphs and analyzed by ANOVA,t-test and square. Results: The data, in different areas of AIDS, in public and private laboratories are similar and the difference statistically is not significant. Regarding to symptoms and treatment, the knowledge of privale Lab staff is higher than stste ones and this difference is significant (P=0.01.As a whole,the results show the knowledge of staff about the transmission modes(92.7%,the pathologic agent(99.2%,at risk people (61.2%and preventive measure (53.1%.both group have good practice in wearing gloves and using disposable syringes.Regarding to disposing infectious waste material,private and state center practice are 92.6% and 77%,respectively. Conclusion: Based on the result,the knowledge relating to preventive procedures and at risk people of AIDS is not enough.Therefore;it is a necessity to hold in service training for Lab staff,stressing on disposing infectious waste materials. Key words: AIDS, laboratory personnel, knowledge, practice

  10. A Radio Polarimetric Study of the Galactic Center Threads

    CERN Document Server

    Lang, C C; Echevarria, L; Lang, Cornelia C.; Morris, Mark

    1999-01-01

    Multi-frequency, polarimetric VLA observations of the non-thermal filaments (NTF's), G0.08+0.15, and G359.96+0.09, also known as the Northern and Southern Threads are presented at 20, 6, 3.6 and 2 cm, with high enough spatial resolution to be resolved for the first time at 6 and 3.6 cm. The 20 cm image reveals a wealth of new detail in the radio sources lying within the inner 60 pc of the Galaxy. The Southern Thread has a prominent split along its length, similar to splitting at the ends of previously studied NTF's. With resolutions as fine as 2'', the 3.6 and 6 cm images reveal a high degree of continuity and little substructure internal to the filament. The spectral index of the Northern Thread has been determined over a broad range of frequencies. Its flux density falls with frequency, alpha=-0.5 between 90 and 6 cm, and becomes much steeper (alpha=-2.0) between 6 and 2 cm. The spectral index does not vary significantly along the length of the Northern Thread, which implies either that the diffusion timesc...

  11. A Study of Flood Evacuation Center Using GIS and Remote Sensing Technique

    Science.gov (United States)

    Mustaffa, A. A.; Rosli, M. F.; Abustan, M. S.; Adib, R.; Rosli, M. I.; Masiri, K.; Saifullizan, B.

    2016-07-01

    This research demonstrated the use of Remote Sensing technique and GIS to determine the suitability of an evacuation center. This study was conducted in Batu Pahat areas that always hit by a series of flood. The data of Digital Elevation Model (DEM) was obtained by ASTER database that has been used to delineate extract contour line and elevation. Landsat 8 image was used for classification purposes such as land use map. Remote Sensing incorporate with GIS techniques was used to determined the suitability location of the evacuation center from contour map of flood affected areas in Batu Pahat. GIS will calculate the elevation of the area and information about the country of the area, the road access and percentage of the affected area. The flood affected area map may provide the suitability of the flood evacuation center during the several levels of flood. The suitability of evacuation centers can be determined based on several criteria and the existing data of the evacuation center will be analysed. From the analysis among 16 evacuation center listed, there are only 8 evacuation center suitable for the usage during emergency situation. The suitability analysis was based on the location and the road access of the evacuation center toward the flood affected area. There are 10 new locations with suitable criteria of evacuation center proposed on the study area to facilitate the process of rescue and evacuating flood victims to much safer and suitable locations. The results of this study will help in decision making processes and indirectly will help organization such as fire-fighter and the Department of Social Welfare in their work. Thus, this study can contribute more towards the society.

  12. Multiple Comparisons in Genetic Association Studies: A Hierarchical Modeling Approach

    Science.gov (United States)

    Yi, Nengjun; Xu, Shizhong; Lou, Xiang-Yang; Mallick, Himel

    2016-01-01

    Multiple comparisons or multiple testing has been viewed as a thorny issue in genetic association studies aiming to detect disease-associated genetic variants from a large number of genotyped variants. We alleviate the problem of multiple comparisons by proposing a hierarchical modeling approach that is fundamentally different from the existing methods. The proposed hierarchical models simultaneously fit as many variables as possible and shrink unimportant effects towards zero. Thus, the hierarchical models yield more efficient estimates of parameters than the traditional methods that analyze genetic variants separately, and also coherently address the multiple comparisons problem due to largely reducing the effective number of genetic effects and the number of statistically ‘significant’ effects. We develop a method for computing the effective number of genetic effects in hierarchical generalized linear models, and propose a new adjustment for multiple comparisons, the hierarchical Bonferroni correction, based on the effective number of genetic effects. Our approach not only increases the power to detect disease-associated variants but also controls the Type I error. We illustrate and evaluate our method with real and simulated data sets from genetic association studies. The method has been implemented in our freely available R package BhGLM (http://www.ssg.uab.edu/bhglm/). PMID:24259248

  13. Experience from the comparison of two PSA-studies

    International Nuclear Information System (INIS)

    Two probabilistic safety assessments (PSA) made for nearly identical reactors units (Forsmark 3 and Oskarshamn 3) have been compared. Two different analysis teams made the PSAs, and the analyses became quite different. The goal of the study is to identify, clarify and explain differences between PSA-studies. The purpose is to understand limitations and uncertainties in PSA, to explain reasons for differences between PSA-studies, and to give recommendations for comparison of PSA-studies and for improving the PSA-methodology. The reviews have been made by reading PSA-documentation, using the computer model and interviewing persons involved in the projects. The method and findings have been discussed within the project group. Both the PSA-project and various parts in the PSA-model have been reviewed. A major finding was that the two projects had different purpose and thus had different resources, scope and even methods in their study. The study shows that comparison of PSA results from different plants is normally not meaningful. It takes a very deep knowledge of the PSA studies to make a comparison of the results and usually one has to ensure that the compared studies have the same scope and are based on the same analysis methods. Harmonisation of the PSA-methodology is recommended in the presentation of results, presentation of methods, scope main limitation and assumption, and definitions for end states, initiating events and common cause failures. This would facilitate the comparison of the studies. Methods for validation of PSA for different application areas should be developed. The developed PSA review standards can be applied for a general validation of a study. The most important way to evaluate the real feasibility of PSA can take place only with practical applications. The PSA-documentation and models can be developed to facilitate the communication between PSA-experts and users. In any application consultation with the PSA-expert is however needed. Many

  14. The Significance of Person-Centered Information on Dental Anxiety – a mixed method study

    OpenAIRE

    Asad, Lanna; Jumaa, Hifi

    2014-01-01

    Dental anxieties are one of the most common forms of anxieties today and represent an obstacle for both the patients and the therapists. The aim of this study was twofold; first, to describe experiences of and assess dental anxiety among patients, and second, based on this develop, implement and evaluate a person-centered information program to decrease experiences of dental anxiety. Our hypothesis was that person-centered information reduces dental anxiety estimated by the Dental Anxiety Sca...

  15. Behavioural Biometrics and Cognitive Security Authentication Comparison Study

    OpenAIRE

    Karan Khare; Surbhi Rautji; Deepak Gaur

    2013-01-01

    Behaviouralbiometrics is a scientific study with the primary purpose of identifying the authenticity of auser based on the way they interact with an authentication mechanism. While Association based passwordauthentication is a cognitive model of authentication system.The work done shows the implementation of Keyboard Latency technique for Authentication,implementation of Association Based Password authentication and comparison among two. There areseveral forms of behavioural biometrics such a...

  16. Adaptation of Fuzzy Cognitive Maps – a Comparison Study

    Directory of Open Access Journals (Sweden)

    Ladislav Madarász

    2010-10-01

    Full Text Available This paper deals with the experimental study and comparison of variousadaptation methods for setting-up parameters of fuzzy cognitive maps (FCMs. A survey isgiven of the best known methods, which are mostly based on unsupervised learning. Theauthors show better performance using supervised learning, namely least mean squareapproaches. Experiments were done on a simulation example of autonomous vehiclenavigation. The paper is concluded by comparing their efficacy and properties.

  17. Adaptation of Fuzzy Cognitive Maps – a Comparison Study

    OpenAIRE

    Ladislav Madarász; Ján Vaščák

    2010-01-01

    This paper deals with the experimental study and comparison of variousadaptation methods for setting-up parameters of fuzzy cognitive maps (FCMs). A survey isgiven of the best known methods, which are mostly based on unsupervised learning. Theauthors show better performance using supervised learning, namely least mean squareapproaches. Experiments were done on a simulation example of autonomous vehiclenavigation. The paper is concluded by comparing their efficacy and properties.

  18. Comparison Study of Segmentation Techniques for Brain Tumour Detection

    OpenAIRE

    D. Manju; Dr.M.SEETHA; Dr. K. Venugopala Rao

    2013-01-01

    Image segmentation plays an important role in diagnosis and treatment of diseases. Imagesegmentation locates objects and boundaries with in images and the segmentation process is stopped whenregion of interest is separated from the input image. Based on the application, region of interest may differand hence none of the segmentation algorithm satisfies the global applications. Thus segmentation stillremains a challenging area for researchers. This paper emphasis on comparison study of segment...

  19. Comparison study of microarray meta-analysis methods

    OpenAIRE

    Yang Yee; Campain Anna

    2010-01-01

    Abstract Background Meta-analysis methods exist for combining multiple microarray datasets. However, there are a wide range of issues associated with microarray meta-analysis and a limited ability to compare the performance of different meta-analysis methods. Results We compare eight meta-analysis methods, five existing methods, two naive methods and a novel approach (mDEDS). Comparisons are performed using simulated data and two biological case studies with varying degrees of meta-analysis c...

  20. The false memory syndrome: Experimental studies and comparison to confabulations

    OpenAIRE

    Mendez, M F; Fras, I.A.

    2010-01-01

    False memories, or recollections that are factually incorrect but strongly believed, remain a source of confusion for both psychiatrists and neurologists. We propose model for false memories based on recent experimental investigations, particularly when analyzed in comparison to confabulations, which are the equivalent of false memories from neurological disease. Studies using the Deese/Roedinger–McDermott experimental paradigm indicate that false memories are associated with the need for com...

  1. The Lathrop Wells volcanic center: Status of field and geochronology studies

    International Nuclear Information System (INIS)

    The Lathrop Wells volcanic center is located 20 km south of the potential Yucca Mountain site, at the south end of the Yucca Mountain range. It has long been recognized as the youngest basalt center in the region. However, determination of the age and eruptive history of the center has proven problematic. The purpose of this paper is to describe the status of field and geochronology studies of the Lathrop Wells center. Our perspective is that it is critical to assess all possible methods for obtaining cross-checking data to resolve chronology and field problems. It is equally important to consider application of the range of chronology methods available in Quaternary geologic research. Such an approach seeks to increase the confidence in data interpretations through obtaining convergence among separate isotopic, radiogenic, and age-correlated methods. Finally, the assumptions, strengths, and weaknesses of each dating method need to be carefully described to facilitate an impartial evaluation of results

  2. Comparison Study of Thermal Insulation Characteristics from Oil Palm Fibre

    OpenAIRE

    Hassan S.; Tesfamichael Aklilu; Mohd Nor M.F.

    2014-01-01

    In this study, investigation was conducted to study the use of solid biomass from palm oil mill as insulation material. The experimental study concentrates on using oil palm fiber to determine the unidirectional thermal conductivity, k. The experiment was conducted at different temperature ranges and packing density. The values of k obtained were found to be 0.2 W/m.K to 0.069 W/m.K for a packing density between 66 kg/m3 to 110 kg/m3, and at a temperature between 40ºC to 70ºC. Comparisons wer...

  3. Multilingual Digital Libraries: a review of issues in system-centered and user-centered studies, information retrieval and user behavior

    OpenAIRE

    Βασιλακάκη, Ευγενία; Γαρουφάλλου, Εμμανουήλ

    2013-01-01

    Purpose: This study aims to identify, collect and critical review the research literature on Multilingual Digital Libraries in English language from 1997 to 2012. Design/methodology/approach: The present literature review has followed the rules of systematic review. In particular, the identified relevant papers were categorized based on their expressed aim on two core themes, that of system-centered and user-centered studies. The assigned papers were further analyzed and six su...

  4. Competitive service centers location in the cities with aim to reduce traffic (Case study: Health centers location in the city if Isfahan

    Directory of Open Access Journals (Sweden)

    Hamid Moradi

    2011-03-01

    Full Text Available Abstract   Distribution of goods and services in cities is of utmost importance. Selecting appropriate venues for different service centers in a city not only enables the citizens to access these services much more easily, but also reduces the traffic load caused by trips made to reach them. Unfortunately, the lack of a correct urban planning has led to inappropriate formation of many cities around the world in terms of the locations assumed for different service centers. Since the private sector has been given the responsibility to construct most of these centers, changing their current locations may be restricted due to legal obligations. Therefore, it seems necessary for the government to construct new service centers with high competitive facilities to attract customers and to compete with those built by the private sector. In this paper, the selection of appropriate locations to construct new service centers has been studied. Such locations have been selected in a way to fulfill goals such as rapid and easy accessibility for the customers and reduction of traffic drawbacks caused by the related trips. In this regard, a model for service centers with restricted capacity has been designed and a parallel simulated annealing algorithm has been proposed to solve it. Finally, the proposed algorithm has been utilized to locate the health centers around the city of Isfahan and its efficiency has been investigated. The findings highlight the accuracy and speed of the proposed algorithm in location of the health centers of Isfahan.

  5. The NASA Lewis Research Center's Expendable Launch Vehicle Program: An Economic Impact Study

    Science.gov (United States)

    Austrian, Ziona

    1996-01-01

    This study investigates the economic impact of the Lewis Research Center's (LeRC) Expendable Launch Vehicle Program (ELVP) on Northeast Ohio's economy. It was conducted by The Urban Center's Economic Development Program in Cleveland State University's Levin College of Urban Affairs. The study measures ELVP's direct impact on the local economy in terms of jobs, output, payroll, and taxes, as well as the indirect impact of these economic activities when they "ripple" throughout the economy. The study uses regional economic multipliers based on input-output models to estimate the effect of ELVP spending on the Northeast Ohio economy.

  6. Study of On-Ramp PI Controller Based on Dural Group QPSO with Different Well Centers Algorithm

    Directory of Open Access Journals (Sweden)

    Tao Wu

    2015-01-01

    Full Text Available A novel quantum-behaved particle swarm optimization (QPSO algorithm, dual-group QPSO with different well centers (DWC-QPSO algorithm, is proposed by constructing the master-slave subswarms. The new algorithm was applied in the parameter optimization of on-ramp traffic PI controller combining with nonlinear feedback theory. With the critical information contained in the searching space and results of the basic QPSO algorithm, this algorithm avoids the rapid disappearance of swarm diversity and enhances the global searching ability through collaboration between subswarms. Experiment results on an on-ramp traffic control simulation show that DWC-QPSO can be well applied in the study of on-ramp traffic PI controller and the comparison results illustrate that DWC-QPSO outperforms other evolutionary algorithms with enhancement in both adaptability and stability.

  7. Environmental Modeling Center

    Data.gov (United States)

    Federal Laboratory Consortium — The Environmental Modeling Center provides the computational tools to perform geostatistical analysis, to model ground water and atmospheric releases for comparison...

  8. A Case Study: An ACT Stress Management Group in a University Counseling Center

    Science.gov (United States)

    Daltry, Rachel M.

    2015-01-01

    The aim of this study was to examine the effectiveness of an acceptance and commitment therapy (ACT) stress management group in a college counseling center setting. This study explored (a) the effectiveness of ACT in increasing participants' ability to tolerate distress, which directly affects their ability to function in a stressful college…

  9. Standardization of measuring power output during wheelchair propulsion on a treadmill Pitfalls in a multi-center study

    NARCIS (Netherlands)

    de Groot, S; Zuidgeest, M; van der Woude, L H V

    2006-01-01

    OBJECTIVE: In a multi-center study the power output of wheelchair propulsion, attained by a wheelchair drag test, differed among rehabilitation centers. The purpose of this study was to investigate what causes the differences in drag force among centers. METHODS: A set of standardized drag tests was

  10. A Comparison Study of Two 3-UPU Translational Parallel Manipulators

    Directory of Open Access Journals (Sweden)

    Bo Hu

    2013-04-01

    Full Text Available A comparison study of two 3‐UPU translational parallel manipulators (PMs is investigated in this paper. The two 3‐UPU PMs have identical pure translational degree of freedoms (DOFs and an identical actuator arrangement, and thus have identical kinematics. But some differences between the two translational 3‐UPU PMs impliedly exist. The two PMs differ in terms of singularity configuration, constrained forces/torques situations and stiffness. This paper focuses on discussing the differences between the two translational 3‐UPU PMs. This study provides insights into PMs with identical kinematics.

  11. A real case study on transportation scenario comparison

    Directory of Open Access Journals (Sweden)

    Tsoukiás A.

    2002-01-01

    Full Text Available This paper presents a real case study dealing with the comparison of transport scenarios. The study is conducted within a larger project concerning the establishment of the maritime traffic policy in Greece. The paper presents the problem situation and an appropriate problem formulation. Moreover a detailed version of the evaluation model is presented in the paper. The model consists of a complex hierarchy of evaluation models enabling us to take into account the multiple dimensions and points of view of the actors involved in the evaluations.

  12. Issues of Occupational Stress: A Study on the Call Center Employees of Kolkata

    OpenAIRE

    Bose Indranil

    2010-01-01

    The objective of the study is to find out the stress and mental health among call center employees. For the purpose of the study a total number of 100 employees have been selected from two different processes i.e. Domestic (N=50) and International (N=50) of a call center of Kolkata. The sample has included both male and female employees in equal number. Two scales namely Life Stress Scale and Mental Health Inventory were administered to all the subjects. Scores obtained have been further anal...

  13. NASA Earth Science Mission Control Center Enterprise Emerging Technology Study Study (MCC Technology Study)

    Science.gov (United States)

    Smith, Dan; Horan, Stephen; Royer, Don; Sullivan, Don; Moe, Karen

    2015-01-01

    This paper reports on the results of the study to identify technologies that could have a significant impact on Earth Science mission operations when looking out at the 5-15 year horizon (through 2025). The potential benefits of the new technologies will be discussed, as well as recommendations for early research and development, prototyping, or analysis for these technologies.

  14. Governance in business process outsourcing: case study on call center outsourcing

    OpenAIRE

    Rantakari, Lauri

    2010-01-01

    GOVERNANCE IN BUSINESS PROCESS OUTSOURCING: Case study on call center outsourcing RESEARCH OBJECTIVES The main research question in this study is: what factors influence the governance of business process outsourcing? This study focuses on how to evaluate service provider capabilities in different service types and how to utilize this information in outsourcing vendor selection and governance. Theoretical basis for the study is built by reviewing latest theories on the subject. Using...

  15. RESULTS OF THE INTERNATIONAL INTERLABORATORY COMPARISON OF MGMT PROMOTER METHYLATION ANALYSIS INVOLVING TWENTY-THREE ACADEMIC CENTERS IN GERMANY, AUSTRIA AND THE NETHERLANDS

    Science.gov (United States)

    Reifenberger, Guido; Malzkorn, B.; Acker, T.; Bettstetter, M.; Buslei, R.; von Deimling, A.; Dietmaier, W.; Dubbink, H.J.; Eigenbrod, S.; Garvalov, B.K.; Gerstenmaier, U.; Giese, A.; Haase, D.; Hasselblatt, M.; Kirches, E.; Koch, A.; Marienfeld, R.; Mittelbronn, M.; Montesinos-Rongen, M.; Pagenstecher, A.; Riemenschneider, M.J.; Prinz, M.; Romeike, B.; Roos, A.; Spiegl-Kreinecker, S.; Schittenhelm, J.; Schlegel, J.; Thal, D.R.; Tops, B.B.J.; Weis, J.; Westphal, G.; Worm, K.; Felsberg, J.

    2014-01-01

    BACKGROUND: Molecular testing for MGMT promoter methylation has become of clinical importance in the diagnostic assessment of malignant gliomas since test results may guide therapeutic decision making, in particular in elderly patients with glioblastoma. However, the patterns and extent of MGMT promoter methylation may vary from tumor to tumor, and standardized approaches for its routine diagnostic assessment are lacking. Thus, external quality assessment (EQA) measures are required to ensure accuracy and reproducibility of results across different laboratories. METHODS: We performed an interlaboratory comparison of MGMT promoter methylation analysis involving twenty-three academic institutions in Germany, Austria and the Netherlands. Two different test rounds were carried out, the first one using high molecular weight DNA extracted from frozen tissue samples of 20 tumors and the second one using formalin-fixed paraffin-embedded tissue sections of 16 tumors. All samples were centrally retrieved from the CNS tumor tissue bank at Heinrich Heine University Düsseldorf. Each participating center evaluated the same set of samples using the locally established methods. Results were centrally collected, together with information on the individual assays and the number of tests carried out per year. RESULTS: Methylation specific-PCR was the most commonly used method at the participating centers. Other less common techniques included pyrosequencing of bisulfite-modified DNA, MethyQESD (methylation-quantification of endonuclease-resistant DNA), MLPA (Multiplex Ligation-dependent Probe Amplification), and PCR-based fragment analysis. MGMT testing results showed a good overall concordance across the participating laboratories for those tumors that either had strongly methylated or clearly unmethylated MGMT promoter sequences. However, poor concordance was obtained for cases with only weak or partial MGMT promoter methylation. CONCLUSIONS: Our study provides an overview of the

  16. A Comparison of Quality of Life and Travel-Related Factors between In-center and Satellite-Based Hemodialysis Patients

    OpenAIRE

    Diamant, Michael J; Harwood, Lori; Movva, Sujana; Wilson, Barbara; Stitt, Larry; Lindsay, Robert M.; Moist, Louise M.

    2010-01-01

    Background and objectives: Shorter travel times and distance to dialysis clinics have been associated with improved patient outcomes and a higher health-related quality of life (HRQOL). The objective of this study was to compare HRQOL between prevalent in-center and satellite dialysis patients, as well as compare travel-related factors that contribute to HRQOL between in-center and satellite-based patients.

  17. Customer Satisfaction: A Comparison of Community College and Employment Security Commission Joblink Career Centers in North Carolina.

    Science.gov (United States)

    Deese, Stephanie

    The Workforce Investment Act of 1998 provided states with a great amount of flexibility in the implementation of a system-wide approach to job training and workforce development. The legislation consolidated employment and training services into a one-stop system that is known as JobLink Career Centers in North Carolina. This document presents…

  18. A comparison of FBP and BPF reconstruction methods for circular X-ray tomography with off-center detector

    NARCIS (Netherlands)

    Schäfer, D.; Grass, M.; Van de Haar, P.

    2011-01-01

    Circular scanning with an off-center planar detector is an acquisi-tion scheme that allows to save detector area while keeping a largefield of view (FOV). Several filtered back-projection (FBP) algorithmshave been proposed earlier. The purpose of this work is to present twonewly developed back-

  19. Comparative study of Treponemal and non-Treponemal test for screening of blood donated at a blood center

    Directory of Open Access Journals (Sweden)

    Narinder Kaur Naidu

    2012-01-01

    Full Text Available The non-Treponemal tests such as Rapid Plasma Reagin test (RPR or the Venereal Disease Reference Laboratory test are the most commonly used test for screening of syphilis in the blood centers in India. Now, with the availability of Enzyme-linked immunosorbent assay (ELISA and Immunochromatographic assays in the market, we decided to evaluate these assays in comparison with Treponema pallidum Haemagglutination Assay (TPHA which was considered as a gold standard for this study. A total of 8 685 samples of voluntary blood donors were tested on Trepolisa 3.0 and then the initially reactive samples were retested in duplicate on the same assay as well as on Omega Pathozyme, RPR, RAPHA (Rapid Anti-Treponema pallidum Assay, and TPHA. Of the 158 initially reactive samples, 104 were repeatedly reactive on the same assay, 85 were reactive with RPR, 77 were reactive with RAPHA, 60 were reactive on Omega, and 53 were confirmed reactive on TPHA. 48 (56.4% of the results on RPR were biological false positive, while 21.9% of results were false negative on RPR. We evaluated that Omega Pathozyme was quite in agreement with TPHA as compared with Trepolisa 3.0, RAPHA, and RPR. We concluded that Omega Pathozyme (ELISA can be considered as a suitable test for screening of syphilis in a blood center.

  20. A journey to client and therapist mutuality in person-centered psychotherapy: a case study

    OpenAIRE

    Tickle, Emma; Murphy, David

    2014-01-01

    This aim of this case study was to build theory on the development of client–therapist mutuality in person-centered psychotherapy. A case study focusing on a 42-year-old female client who had presented for therapy following trauma within interpersonal relationships has been used. A reflective, theory-building, case study method was adopted that used data gathered from verbatim session notes and research interviews between the therapist (first author) and research supervisor (second author). T...

  1. Recruitment Challenges: Lessons from Senior Centers and Older African-American Participants in a Literacy Study

    Science.gov (United States)

    Ntiri, Daphne W.; Stewart, Merry

    2010-01-01

    This article reviews the challenges encountered in the recruitment of urban older African-Americans in a study to explore the effects of interactive educational intervention on functional health literacy and diabetes knowledge. Our methods included identification of challenges related to the individual characteristics of seniors' centers that…

  2. Evolving a University Center to a Branch Campus: A Case Study

    Science.gov (United States)

    Mills, Steven C.; Plumb, Robin

    2012-01-01

    Higher education is now expected to respond to community demands that include fueling economic development and addressing the needs of a wider range of students. Colleges and universities have responded to these demands using a variety of delivery models. A study was conducted by the Ardmore Higher Education Center to identify the advantages and…

  3. The Learner-Centered Instructional Design Model: A Modified Delphi Study

    Science.gov (United States)

    Melsom, Duane Allan

    2010-01-01

    The learner-centered instructional design model redefines the standard linear instructional design model to form a circular model where the learner's needs are the first item considered in the development of instruction. The purpose of this modified Delphi study was to have a panel of experts in the instructional design field review the…

  4. A Case Study Using Child-Centered Play Therapy Approach to Treat Enuresis and Encopresis.

    Science.gov (United States)

    Cuddy-Casey, Maria

    1997-01-01

    Demonstrates an alternative method (nondirective child-centered therapy) in treating enuresis and encopresis resulting from emotional disturbances. Examines various etiologies and approaches to treating these conditions. Provides a case study example. Claims that professionals must differentiate between primary and secondary occurrences of these…

  5. Validating the Center for Epidemiological Studies Depression Scale for Children in Rwanda

    Science.gov (United States)

    Betancourt, Theresa; Scorza, Pamela; Meyers-Ohki, Sarah; Mushashi, Christina; Kayiteshonga, Yvonne; Binagwaho, Agnes; Stulac, Sara; Beardslee, William R.

    2012-01-01

    Objective: We assessed the validity of the Center for Epidemiological Studies Depression Scale for Children (CES-DC) as a screen for depression in Rwandan children and adolescents. Although the CES-DC is widely used for depression screening in high-income countries, its validity in low-income and culturally diverse settings, including sub-Saharan…

  6. 75 FR 78212 - Proposed Information Collection; Comment Request; Center for Economic Studies Research Proposal...

    Science.gov (United States)

    2010-12-15

    ... Narrative--Describes in detail the research question(s) to be addressed, Census Bureau and researcher... Census Bureau Proposed Information Collection; Comment Request; Center for Economic Studies Research... ). SUPPLEMENTARY INFORMATION: I. Abstract The U.S. Census Bureau through its network of Census Research...

  7. Highlighting High Performance Buildings: Adam Joseph Lewis Center for Environmental Studies

    Energy Technology Data Exchange (ETDEWEB)

    None

    2002-11-01

    Oberlin College's Adam Joseph Lewis Center for Environmental Studies is a high-performance building featuring an expansive photovoltaic system and a closed-loop groundwater heat pump system. Designers incorporated energy-efficient components and materials that are local, non-toxic, and durable.

  8. The Minnesota Center for Twin and Family Research Genome-Wide Association Study

    DEFF Research Database (Denmark)

    Miller, M. B.; Basu, S.; Cunningham, J.; Eskin, E.; Malone, S. M.; Oetting, W. S.; Schork, N.; Sul, J. H.; Iacono, W. G.; McGue, M.

    2012-01-01

    As part of the Genes, Environment and Development Initiative, the Minnesota Center for Twin and Family Research (MCTFR) undertook a genome-wide association study, which we describe here. A total of 8,405 research participants, clustered in four-member families, have been successfully genotyped on...

  9. A-centers in silicon studied with hybrid density functional theory

    KAUST Repository

    Wang, Hao

    2013-07-29

    Density functional theory employing hybrid functional is used to gain fundamental insight into the interaction of vacancies with oxygen interstitials to form defects known as A-centers in silicon. We calculate the formation energy of the defect with respect to the Fermi energy for all possible charge states. It is found that the neutral and doubly negatively charged A-centers dominate. The findings are analyzed in terms of the density of states and discussed in view of previous experimental and theoretical studies.

  10. Study of structure modification influence of polymer matrix on the impurity centers luminescence

    International Nuclear Information System (INIS)

    Data on study of influence of polymer matrix structure change on impurity centers fluorescence are cited. In the capacity of polymer matrix the polyvinyl butyryl (PVB) serves, and as fluorescence centers the dye molecules the crystal violet (CV) are serving. Computerized simulation of processes of PVB matrixes structuring under the oxygen action from air, produced under annealing of the film at thermal treatment of liquid polymer. Calculation of KV spectral lines wave length under optimization of the dye-polymer system is carried out by the Mm+ molecular mechanics method, and then by semi-empiric method ZINDO1

  11. A Multi-center Study for Birth Defect Monitoring Systems in Korea

    OpenAIRE

    Yang, Jae-Hyug; Kim, Yon-Ju; Chung, Jin-Hoon; Kim, Moon-Young; Ryu, Hyun-Mee; Ahn, Hyun-Kyong; Han, Jung-Yul; Yang, Soon-Ha; Kim, Ahm; Kim, Hyun-Se; Lee, Pyo-Jong; Kim, Sung-Soo; Kim, Young-Ju; Koh, Kyung-Sim; Shin, Jong-Chul

    2004-01-01

    The aim of this study was to establish a multi-center birth defects monitoring system to evaluate the prevalence and the serial occurrence of birth defects in Korea. Ten medical centers participated in this program. A trained nurse collected relevant records from delivery units and pediatric clinics in participating hospitals on a monthly basis. We observed 1,537 cases of birth defects among 86,622 deliveries, which included live births and stillbirths. The prevalence of birth defects was 1.8...

  12. Technology utilization in a non-urban region: Further impact and technique of the Technology Use Studies Center

    Science.gov (United States)

    1976-01-01

    Updated information is given pertaining to Technology Use Studies Center (TUSC) clients who are those that receive/use information as disseminated by the center. The client information is presented as a continuation of client data as set forth in the center's previous annual report.

  13. Patient Satisfaction with Spanish Pain Centers: Observational Study with More than 3,000 Patients

    Science.gov (United States)

    Hernández-Puiggròs, Patricia; Tesedo Nieto, Javier; Acín Lázaro, María Pilar; Carrera González, Alfredo; Soler, Miguel José Arranz; Maldonado Vega, Sergio

    2016-01-01

    Chronic pain is a serious problem in Spain. This multicenter, epidemiological 3-month follow-up study investigates pain management efficacy in Spanish centers using patient satisfaction criteria. 3,414 eligible adult patients (65,6% female) with moderate to severe chronic pain from 146 pain centers were included. Patient satisfaction was assessed based onto question 18 of Spanish healthcare barometer-CSI. Pain evolution (Brief Pain Inventory-Short Form (BPI-SF) and visual analog scale (VAS)), quality of life/EuroQol-5, and pain control expectations fulfillment were also assessed. Mean age was 61.3 years. 64.4% of participating centers employed multidisciplinary pain management approach. After 3 months, mean patient satisfaction was 7.8 (1–10) on the CIS barometer. Medical staff received the highest scores, whereas waiting for tests, appointment request to appointment date time, and waiting times at the center the lowest. Mean pain decreased from 7.4 to 4.0; BPI-SF intensity decreased from 6.5 to 3.8; pain control expectations were met in 78.7% of patients; EuroQoL-5D utility index increased from 0.37 to 0.62, p Spanish centers care; 80% had their pain control expectations met. Quality of life improved remarkably: 71% felt moderately to significantly better. However, waiting times need improvement.

  14. Noise power spectrum studies of CT systems with off-centered image object and bowtie filter

    Science.gov (United States)

    Gomez-Cardona, Daniel; Cruz-Bastida, Juan P.; Li, Ke; Budde, Adam; Hsieh, Jiang; Chen, Guang-Hong

    2016-03-01

    In previous studies of the noise power spectrum (NPS) of multi-detector CT (MDCT) systems, the image object was usually placed at the iso-center of the CT system; therefore, the bowtie filter had negligible impact on the shape of the two-dimensional (2D) NPS of MDCT. This work characterized the NPS of off-centered objects when a bowtie filter is present. It was found that the interplay between the bowtie filter and object position has significant impact on the rotational symmetry of the 2D NPS. Depending on the size of the bowtie filter, the degree of object off-centering, and the location of the region of interest (ROI) used for the NPS measurements, the symmetry of the 2D NPS can be classified as circular, dumbbell, and a peculiar cloverleaf symmetry. An anisotropic NPS corresponds to structured noise texture, which may directly influence the detection performance of certain low contrast detection tasks.

  15. Clinical and functional outcomes of the PCCP study: a multi-center prospective study in Italy.

    Science.gov (United States)

    Antonini, G; Giancola, R; Berruti, D; Blanchietti, E; Pecchia, P; Francione, V; Greco, P; Russo, T C; Pietrogrande, L

    2013-04-01

    The standard surgical management of hip fractures is associated with tissue trauma and bleeding which are added to the fracture injury. The percutaneous compression plate (PCCP) is a minimally invasive device that has been demonstrated in previous studies to reduce postoperative complications and blood loss. This prospective, multi-center, observational study assessed clinical and functional outcomes with PCCP as treatment for trochanteric fractures. Patients with a stable or unstable proximal femoral fracture of type AO 31.A1 or 31.A2 were enrolled in eight hospitals in Italy. The primary outcome of interest was the recovery of the pre-fracture functional status at 1-year follow-up; secondary outcomes of interest included blood transfusions, surgical time, complications, and mortality. A total of 273 patients were enrolled. The ASA score was 3 or 4 in 72.5 % of patients. The mean surgical time was 44.1 min; the mean post-surgery blood transfusions was 0.9 units. At 1 year, 48 patients (17.6 %) died, 28 (10.2 %) were lost to follow-up, 4 patients (1.5 %) were excluded, hence 193 patients (70.3 %) were available for final evaluation. At the 1-year follow-up visit, 51.9 % of patients recovered or improved their pre-fracture modified Harris Hip Score, 49.1 % of patients improved or maintained their walking abilities, and 66.6 % of patients residing at home pre-surgery maintained their domicile. The overall mortality rate was 17.6 %. Major complications included two fracture collapses, one excessive sliding of the cephalic screw leading to a partial fracture collapse and one back-out of the diaphyseal screw. This study demonstrates that treatment of trochanteric fractures with PCCP gives good outcomes and significant advantages such as low blood loss, short surgical time, low risk of complications, and good functional recovery in the majority of the patients. PMID:23543403

  16. Economic evaluation of the Blanket Comparison and Selection Study

    International Nuclear Information System (INIS)

    The economic impact of employing the highly ranked blankets in the Blanket Comparison and Selection Study (BCSS) was evaluated in the context of both a tokamak and a tandem mirror power reactor (TMR). The economic evaluation criterion was determined to be the cost of electricity. The influencing factors that were considered are the direct cost of the blankets and related systems; the annual cost of blanket replacement; and the performance of the blanket, heat transfer, and energy conversion systems. The technical and cost bases for comparison were those of the STARFIRE and Mirror Advanced Reactor Study conceptual design power plants. The economic evaluation results indicated that the nitrate-salt-cooled blanket concept is an economically attractive concept for either reactor type. The water-cooled, solid breeder blanket is attractive for the tokamak and somewhat less attractive for the TMR. The helium-cooled, liquidlithium breeder blanket is the least economically desirable of higher ranked concepts. The remaining self-cooled liquid-metal and the helium-cooled blanket concepts represent moderately attractive concepts from an economic standpoint. These results are not in concert with those found in the other BCSS evaluation areas (engineering feasibility, safety, and research and development (R and D) requirements). The blankets faring well economically had generally lower cost components, lower pumping power requirements, and good power production capability. On the other hand, helium- and lithium-cooled systems were preferred from the standpoints of safety, engineering feasibility, and R and D requirements

  17. Nuclear Energy Center study. Phase II. Site suitability analysis. Final report

    International Nuclear Information System (INIS)

    A site screening study was conducted to identify a site or sites for detailed, site-specific study as a nuclear energy center. Using technical criteria of water requirements, geotechnical constraints, and projected load center and transmission considerations as well as environmental and institutional considerations, five potential study sites in the State of South Carolina were identified, evaluated against established criteria, and ranked according to their acceptability as potential nuclear energy center study sites. Consideration of what is ''representative'' of a site as well as the ranking score was factored into site recommendations, since the site deemed easiest to license and permit may not be the most desirable site for future study of the technical and institutional feasibility and practicality of a specific site. The sites near Lake Hartwell and the Savannah River Plant (SRP) of the Department of Energy were selected as potential study sites after consideration of the above criteria. Because the Lake Hartwell site offers the opportunity to consider institutional issues which may be more representative of other possible NEC sites, it is recommended that the Lake Hartwell site be studied to establish the feasibility and practicality of the nuclear energy concept on a site-specific basis

  18. Opiate Dependents’ Experiences of the Therapeutic Relationship in Methadone Centers; A Qualitative Study

    OpenAIRE

    Banazadeh, Nabi; Kheradmand, Ali; Abedi, Heidarali

    2009-01-01

    Background: Methadone maintenance therapy is a treatment of choice for opiate addiction. Understanding opiate dependents’ experiences of patients' treatment is a key to continue the treatment and can provide help to revise the standards of methadone centers and improve the quality of treatment. This study aimed to describe the essence and structure of opiate dependents’ experiences with methadone maintenance therapy. Methods: It was a qualitative phenomenological study, in which participants ...

  19. The Dust Accelerator Facility of the Colorado Center for Lunar Dust and Atmospheric Studies

    International Nuclear Information System (INIS)

    The NASA Lunar Institute's Colorado Center for Lunar Dust and Atmospheric Studies has recently completed the construction of a new experimental facility to study hypervelocity dust impacts. The installation includes a 3 MV Pelletron, accelerating small particles in the size range of 0.1 to few microns to velocities in the range of 1 to 100 km/s. Here we report the capabilities of our facility, and the results of our first experiments.

  20. BMI changes in children and adolescents attending a specialized childhood obesity center: a cohort study

    OpenAIRE

    Maggio, Albane Bertha; Saunders, Catherine Tamsin; Gal-Duding, Claudine; Beghetti, Maurice; Martin, Xavier; Farpour-Lambert, Nathalie; Chamay-weber, Catherine

    2013-01-01

    Background Multidisciplinary group therapies for obese children and adolescents are effective but difficult to implement. There is a crucial need to evaluate simpler management programs that target the obese child and his family. This study aimed to determine changes in body mass indexes (BMI) after individual family-based obesity intervention with a pediatrician in a specialized obesity center for child and adolescent. Methods This cohort study included 283 patients (3.3 to 17.1 years, mean ...

  1. Turkish Adaptation, Validity and Reliability Study of the Beach Center Family Quality of Life Scale

    OpenAIRE

    Meral, Bekir Fatih; Sakarya Üniversitesi, Eğitim Fakültesi, Özel Eğitim Bölümü; Cavkaytar, Atilla; Anadolu Üniversitesi, Eğitim Fakültesi, Özel Eğitim Bölümü

    2013-01-01

    The aim of this study is to adapt the Beach Center Family Quality of Life Scale to Turkish by examining its psychometric properties. Participants were 368 mothers of children with disabilities from 7 cities of Turkey. In this study firstly, the language equivalency between English and Turkish forms were tested. After that confirmatory factor analysis, criterion validity, the Cronbach’s alpha correlation coefficients, and split-half reliabilities, corrected item-total correlations and t-tests ...

  2. Study of a conceptual nuclear energy center at Green River, Utah: institutional and licensing issues

    International Nuclear Information System (INIS)

    This document constitutes a segment of a feasibility study investigating the ramification of construcing a nuclear energy center in an arid western region. In this phase of the study, the institutional and licensing issues impacting a NEC were analyzed. The most prominent issue facing such a concept is the ownership form of NEC. In addition, legislation and regulation also have a substantial impact regardless of the ownership format

  3. Cardiorespiratory fitness and digestive cancer mortality: findings from the Aerobics Center Longitudinal Study (ACLS)

    OpenAIRE

    Peel, J. Brent; Sui, Xuemei; Matthews, Charles E.; Adams, Swann A; Hébert, James R; Hardin, James W.; Timothy S Church; Blair, Steven N.

    2009-01-01

    Although higher levels of physical activity are inversely associated with risk of colon cancer, few prospective studies have evaluated overall digestive system cancer mortality in relation to cardiorespiratory fitness (CRF). The authors examined this association among 38,801 men aged 20−88 years and who performed a maximal treadmill exercise test at baseline in the Aerobics Center Longitudinal Study (Dallas, Texas) during 1974−2003. Mortality was assessed over 29 years of follow-up (1974−2003...

  4. Medical waste management in Jordan: A study at the King Hussein Medical Center

    International Nuclear Information System (INIS)

    As in many other developing countries, the generation of regulated medical waste (RMW) in Jordan has increased significantly over the last few decades. Despite the serious impacts of RMW on humans and the environment, only minor attention has been directed to its proper handling and disposal. This study was conducted in the form of a case study at one of Jordan's leading medical centers, namely, the King Hussein Medical Center (KHMC). Its purpose was to report on the current status of medical waste management at KHMC and propose possible measures to improve it. In general, it was found that the center's administration was reasonably aware of the importance of medical waste management and practiced some of the measures to adequately handle waste generated at the center. However, it was also found that significant voids were present that need to be addressed in the future including efficient segregation, the use of coded and colored bags, better handling and transfer means, and better monitoring and tracking techniques, as well as the need for training and awareness programs for the personnel

  5. Behavioural Biometrics and Cognitive Security Authentication Comparison Study

    Directory of Open Access Journals (Sweden)

    Karan Khare

    2013-11-01

    Full Text Available Behaviouralbiometrics is a scientific study with the primary purpose of identifying the authenticity of auser based on the way they interact with an authentication mechanism. While Association based passwordauthentication is a cognitive model of authentication system.The work done shows the implementation of Keyboard Latency technique for Authentication,implementation of Association Based Password authentication and comparison among two. There areseveral forms of behavioural biometrics such as voice analysis, signature verification, and keystrokedynamics. In this study, evidence is presented indicating that keystroke dynamics is a viable method notonly for user verification, but also for identification as well. The work presented in this model borrowsideas from the bioinformatics literature such as position specific scoring matrices (motifs and multiplesequence alignments to provide a novel approach to user verification and identification within the contextof a keystroke dynamics based user authentication system. Similarly Cognitive approach can be defined inmany ways of which one is association based Technique for authentication

  6. Student-Centered Teaching Meets New Media: Concept and Case Study

    Directory of Open Access Journals (Sweden)

    Andreas Holzinger

    2002-10-01

    Full Text Available There exists empirical evidence proving that students who are given the freedom to explore areas based on their personal interests, and who are accompanied in their learning by a supportive, understanding facilitator, not only achieve superior academic results but also develop socially and grow personally. However, pure Student-Centered Teaching is more demanding in terms of communication, organization, as well as the provision of learning material. Thus, the basic idea underlying our paradigm is to combine Student-Centered Teaching with eLearning in order to exploit the advantages of the two approaches. We refer to this combined style as Student-Centered eLearning (SCeL. Strongly simplified, the computer takes over the task of providing information, while presence phases can be used for giving the content more meaning by means of transparent, open, respectful and empathic interactions within the group. Our case study indicates that Student-Centered eLearning has the potential of reducing the increased demands of Student-Centered Teaching in the long run, while fully retaining all its benefits, such as deeper learning processes, personal growth, social skills, and a higher degree of flexibility. Furthermore, the maturity for life-long learning is cultivated. In this paper we introduce our concept and derive first hypotheses on the conditions under which our paradigm appears most effective. While potential continuations of our studies are manifold, we intend to employ SCeL in the course of the new curriculum of the medical faculty of GrazUniversity where a Virtual Medical Campus (http://vmc.uni-graz.at is currently being developed.

  7. An epidemiological study of Haemophilus influenzae at a Brazilian day care center

    Directory of Open Access Journals (Sweden)

    M.E. Bonifácio da Silva

    2001-10-01

    Full Text Available Day care centers are a relatively new phenomenon in Brazil that bring together large numbers of young children susceptible to contagious diseases. Haemophilus influenzae (Hi is an important infection in the age range of those attending day care centers. In the present study, the carriage rate of Haemophilus influenzae was identified in 38 day care attendees age 6 to 37 months, and 23 staff members, at a day care center in Ribeirão Preto-São Paulo, in 1997. To identify the carriers, two nasopharyngeal swabs were collected; one in July and one in December. The rate of H. influenzae carriers among the children was 77%. Only 2 of 23 staff members (9% had Hi. Among the children, there were 58 isolates in the two sampling periods; 6 of the Hi were serotype b, 1 was serotype e, and 48 isolates were non-typeable. Two were identified as H. parainfluenzae. One adult had a non-typeable Hi and 1 had H. paraphrohaemolyticus. Three of the 6 children with type B had received a conjugate vaccine against H. influenzae type b, but they still carried this bacterium in the nasopharynx (50%. Forty ribotype patterns were found among the isolates, showing a high exchange rate of nontypeable H. influenzae carriers. The results indicate that, because of the high and changing biotype of Hi carriage, day care centers should be carefully monitored as potential point source of HI disease in the community.

  8. Comparison of two LES codes for wind turbine wake studies

    DEFF Research Database (Denmark)

    Chivaee, Hamid Sarlak; Pierella, F.; Mikkelsen, Robert Flemming;

    2014-01-01

    of this paper is to investigate on two CFD solvers, the DTU's in-house code, EllipSys3D and the open-sourse toolbox, OpenFoam, for a set of actuator line based LES computations. Two types of simulations are performed: the wake behind a signle rotor and the wake behind a cluster of three inline rotors......For the third time a blind test comparison in Norway 2013, was conducted comparing numerical simulations for the rotor Cp and Ct and wake profiles with the experimental results. As the only large eddy simulation study among participants, results of the Technical University of Denmark (DTU) using....... Results are compared in terms of velocity deficit, turbulence kinetic energy and eddy viscosity. It is seen that both codes predict similar near-wake flow structures with the exception of OpenFoam's simulations without the subgrid-scale model. The differences begin to increase with increasing the distance...

  9. Inter-comparison study of the ENSEMBLE project

    International Nuclear Information System (INIS)

    During the days of the Chernobyl accident, the European national long-range dispersion forecasts would differ because of differences in national models, and differences in weather prediction methods. ENSEMBLE project was launched for a reconciliation and harmonization of the disparate long-range dispersion forecasts. Responsible European emergency organizations in addition to Canadian, Japanese, Korean and US agencies have participated in ENSEMBLE. KAERI joined the inter-comparison study for the exercise on the 901-001 scenario in ENSEMBLE. KAERI was assigned KR1 as a national code and 53 as a model number. The model of KAERI was compared with the other models of the participants in ENSEMBLE. The comparative results are presented with the scatter plots and statistical methods in this paper. (author)

  10. Socioeconomic impacts: study of a conceptual nuclear energy center at Green River, Utah

    International Nuclear Information System (INIS)

    This document constitutes a segment of a feasibility study investigating the ramifications of constructing a nuclear energy center (NEC) in an arid western region. In this phase of the study, the impacts on socioeconomic conditions in the surrounding communities and possible ways of financing and mitigating these impacts were examined. The general conclusion reached is that the socioeconomic impacts of a nuclear energy center in the Green River area of Southeastern Utah would not impose an absolute bar to NEC development. The economy of the NEC impact area would be substantially transformed by the NEC. In particular, Green River city itself would change from its current status as a relatively stable rural economy with an agricultural, mining, and recreation base to a major city with over 20,000 permanent relatively high income residents. The NEC, by itself, would provide a tax base more than adequate to finance required expansion of public facilities and public human service provisions

  11. Segmentation of age-related white matter changes in a clinical multi-center study

    DEFF Research Database (Denmark)

    Dyrby, Tim B.; Rostrup, E.; Baare, W.F.C.; van Straaten, E.C.W.; Barkhof, F.; Vrenken, H.; Ropele, S.; Schmidt, R.; Erkinjuntti, T.; Wahlund, L.O.; Pantoni, L.; Inzitari, D.; Paulson, O.B.; Hansen, Lars Kai; Waldemar, G.

    2008-01-01

    Leukoaraiosis And Disability (LADIS). Semi-manually delineated WMC were used for validating the segmentation produced by the neural networks. The neural network segmentation demonstrated high consistency between subjects and centers, making it a promising technique for large studies. For WMC volumes less than...... 10 ml, an increasing discrepancy between semi-manual and neural network segmentation was observed using the similarity index (SI) measure. The use of all three image modalities significantly improved cross-center generalizability compared to neural networks using the FLAIR image only. Expert......Age-related white matter changes (WMC) are thought to be a marker of vascular pathology, and have been associated with motor and cognitive deficits. In the present study, an optimized artificial neural network was used as an automatic segmentation method to produce probabilistic maps of WMC in a...

  12. A user-centered study for the improvement of Laurea LibGuides

    OpenAIRE

    Mohamed, Ahmednur

    2015-01-01

    The library of Laurea University of Applied Sciences is launching a new content management service that makes it easier for users to access available resources. This thesis report describes the findings of a user-centered study of the Business Information Technology LibGuide subject guide, the purpose of which is to develop an understanding of the users’ perspectives and expectations, as well as the perceived weaknesses of the service and the improvements the users are expecting to be made. ...

  13. Guiding center orbit studies in a Tokamak Edge geometry employing boozer and Cartesian coordinate

    International Nuclear Information System (INIS)

    Guiding center Monte-Carlo codes (GCMC) in both open and closed field line regions in the tokamak edge geometry are developed for the future applications in examining the integration of core and edge turbulence transport simulations. Introducing a simple analytical model for the edge geometry, the orbital studies are presented. (copyright 2008 WILEY-VCH Verlag GmbH and Co. KGaA, Weinheim) (orig.)

  14. Presentation of 493 Consecutive Girls with Idiopathic Central Precocious Puberty: A Single-Center Study

    OpenAIRE

    Eloïse Giabicani; Slimane Allali; Adélaïde Durand; Julie Sommet; Ana-Claudia Couto-Silva; Raja Brauner

    2013-01-01

    BACKGROUND: Despite the number of reported data concerning idiopathic central precocious puberty (CPP) in girls, major questions remain including its diagnosis, factors, and indications of gonadotropin releasing hormone (GnRH) analog treatment. METHODS: A retrospective, single-center study was carried out on 493 girls with CPP. RESULTS: Eleven girls (2.2%) were aged less than 3 years. Breast development was either isolated (Group 0, n = 99), or associated with one sign, pubic hair development...

  15. Prophylactic Pancreatic Stent Placement for Endoscopic Duodenal Ampullectomy: A Single-Center Retrospective Study

    OpenAIRE

    Chang, Woo Ik; Min, Yang Won; Yun, Hwan Sic; Lee, Kwang Hyuck; Lee, Jong Kyun; Lee, Kyu Taek; Rhee, Poong-Lyul

    2013-01-01

    Background/Aims We investigated the efficacy of prophylactic pancreatic stent placement for preventing postprocedure pancreatitis in patients undergoing endoscopic papillectomy. Methods This retrospective study included 82 consecutive patients who underwent endoscopic papillectomy for benign ampullary neoplasm at Samsung Medical Center between August 2002 and June 2011. The patients were subdivided into two groups, namely, those who received prophylactic pancreatic stent placement and those w...

  16. Naval Postgraduate School Center for Infosec Studies and Research: Teaching the Science of Computer Security (U)

    OpenAIRE

    Irvine, Cynthia E.

    1997-01-01

    (U) The Naval Postgraduate School Center for Information Systems Security (INFOSEC) Studies and Research (NPS CISR) is developing a comprehensive program in INFOSEC education and research that can become a resource for DoN/DoD and U.S Government in terms of educational materials and research. A security track within the Computer Science curriculum has been established. Its philosophical core is the abstract notion of conceptually complete security mechanism, the Refere...

  17. The Uses of the Smartphone for Doctors: An Empirical Study from Samsung Medical Center

    OpenAIRE

    Choi, Jong Soo; Yi, Byoungkee; PARK, Jong Hwan; Choi, Kyesook; Jung, Jaegon; Park, Seung Woo; Rhee, Poong-Lyul

    2011-01-01

    Objectives In healthcare, mobile computing made possible by smartphones is becoming an important tool among healthcare professionals. However, currently there is very little research into the effectiveness of such applications of technology. This study aims to present a framework for a smartphone application to give doctors mobile access to patient information, then review the consequences of its use and discuss its future direction. Methods Since 2003 when Samsung Medical Center introduced i...

  18. Leprosy classification methods: a comparative study in a referral center in Brazil

    OpenAIRE

    Ismael Alves Rodrigues Júnior; Letícia Trivellato Gresta; Maria de Lourdes Meirelles Noviello; Christiane Teixeira Cartelle; Sandra Lyon; Rosa Maria Esteves Arantes

    2016-01-01

    Objectives: Different methods for the classification of leprosy have been proposed since the 1930s. The aim of this study was to compare the current methods at a referral center in Brazil. Methods: The World Health Organization (WHO) operational classification was compared to the Ridley and Jopling classification, the Madrid classification, and a classification based on the number of body areas affected by skin and/or neural lesions (NBAA). The correlation between the clinical and histopat...

  19. Cambridge Center for Behavioral Studies Turing Test Transcript for Terminal 5

    OpenAIRE

    Weintraub, Joseph

    1992-01-01

    Can machines think? Alan Turing's decades-old question still influences artificial intelligence because of the simple test he proposed in his article in Mind. In this article, "AI Magazine collects presentations about the first round of the classic Turing Test of machine intelligence, held November 8, 1991 at The Computer Museum, Boston. Robert Epstein, Director Emeritus, Cambridge Center for Behavioral Studies, and an adjunct professor of psychology, Boston University, University of Massachu...

  20. Technology Transfer Challenges: A Case Study of User-Centered Design in NASA's Systems Engineering Culture

    Science.gov (United States)

    Quick, Jason

    2009-01-01

    The Upper Stage (US) section of the National Aeronautics and Space Administration's (NASA) Ares I rocket will require internal access platforms for maintenance tasks performed by humans inside the vehicle. Tasks will occur during expensive critical path operations at Kennedy Space Center (KSC) including vehicle stacking and launch preparation activities. Platforms must be translated through a small human access hatch, installed in an enclosed worksite environment, support the weight of ground operators and be removed before flight - and their design must minimize additional vehicle mass at attachment points. This paper describes the application of a user-centered conceptual design process and the unique challenges encountered within NASA's systems engineering culture focused on requirements and "heritage hardware". The NASA design team at Marshall Space Flight Center (MSFC) initiated the user-centered design process by studying heritage internal access kits and proposing new design concepts during brainstorming sessions. Simultaneously, they partnered with the Technology Transfer/Innovative Partnerships Program to research inflatable structures and dynamic scaffolding solutions that could enable ground operator access. While this creative, technology-oriented exploration was encouraged by upper management, some design stakeholders consistently opposed ideas utilizing novel, untested equipment. Subsequent collaboration with an engineering consulting firm improved the technical credibility of several options, however, there was continued resistance from team members focused on meeting system requirements with pre-certified hardware. After a six-month idea-generating phase, an intensive six-week effort produced viable design concepts that justified additional vehicle mass while optimizing the human factors of platform installation and use. Although these selected final concepts closely resemble heritage internal access platforms, challenges from the application of the

  1. The Lathrop Wells volcanic center: Status of field and geochronology studies

    International Nuclear Information System (INIS)

    The purpose of this paper is to describe the status of field and geochronology studies of the Lathrop Wells volcanic center. Our perspective is that it is critical to assess all possible methods for obtaining cross-checking data to resolve chronology and field problems. It is equally important to consider application of the range of chronology methods available in Quaternary geologic research. Such an approach seeks to increase the confidence in data interpretations through obtaining convergence among separate isotopic, radiogenic, and age-correlated methods. Finally, the assumptions, strengths, and weaknesses of each dating method need to be carefully described to facilitate an impartial evaluation of results. The paper is divided into two parts. The first part describes the status of continuing field studies for the volcanic center for this area south of Yucca Mountain, Nevada. The second part presents an overview of the preliminary results of ongoing chronology studies and their constraints on the age and stratigraphy of the Lathrop Wells volcanic center. Along with the chronology data, the assumptions, strengths, and limitations of each methods are discussed

  2. Comparison Of Seismic Performance Of Erciş Cultural Center Building With Observed And Calculated By Turkish Earthquake Code-2007

    Directory of Open Access Journals (Sweden)

    Recep Ali Dedecan

    2013-08-01

    Full Text Available The goal of this paper is to review the validity of seismic assessment procedure given in the Turkish Earthquake Code by comparing the assessment results with real structures from Eastern Turkey, where the 2011 Van earthquake occurred. To test the analysis methods for a typically suitable structure, the cultural center building at Erciş with 3 stories, is selected. In order to compare the results of the three different analysis techniques, for an identical earthquake, the ground motion used in analysis was characterized by equivalent elastic earthquake spectra, which were developed from available time history at the nearest construction site. It was found that the damage predictions by using the by Turkish Earthquake Code procedures point out the different level of damages. But, it is concluded that nonlinear time history analysis calculated the best estimation of the damage observed in the site.

  3. Comparison beetwen open and laparoscopic radical cistectomy in a latin american reference center: perioperative and oncological results

    Directory of Open Access Journals (Sweden)

    Marcos Tobias-Machado

    2015-08-01

    Full Text Available ABSTRACTObjectives:To evaluate the differences of peri-operatory and oncological outcomes between Laparoscopic Radical Cystectomy and Open Radical Cystectomy in our center.Materials and Methods:Overall, 50 patients were included in this non randomized match-pair analysis: 25 patients who had undergone Laparoscopic Radical Cystectomy for invasive bladder cancer (Group-1 and 25 patients with similar characteristics who had undergone Open Radical Cystectomy (Group-2. The patients were operated from January 2005 to December 2012 in a single Institution.Results:Mean operative time for groups 1 and 2 were 350 and 280 minutes (p=0.03 respectively. Mean blood loss was 330 mL for group 1 and 580 mL for group 2 (p=0.04. Intraoperative transfusion rate was 0% and 36% for groups 1 and 2 respectively (p=0.005. Perioperative complication rate was similar between groups. Mean time to oral intake was 2 days for group 1 and 3 days for group 2 (p=0.08. Median hospital stay was 7 days for group 1 and 13 for group 2 (p=0.04. There were no differences in positive surgical margins and overall survival, between groups.Conclusions:In a reference center with pelvic laparoscopic expertise, Laparoscopic Radical Cystectomy may be considered a safe procedure with similar complication rate of Open Radical Cystectomy. Laparoscopic Radical Cystectomy is more time consuming, with reduced bleeding and transfusion rate. Hospital stay seems to be shorter. Oncologically no difference was observed in our mid-term follow-up.

  4. The reader creates a personal meaning: A Comparative study of scenarios and human-centered stories

    DEFF Research Database (Denmark)

    Strøm, Georg

    Stories, human-centered stories, scenarios, software development, emotions, requirements, conceptual design......Stories, human-centered stories, scenarios, software development, emotions, requirements, conceptual design...

  5. Application of the Study Model of \\\\\\"Knowledge Management Infrastructure in Organizations\\\\\\" in Information Centers: The case of the Regional Information Center for Science and Technology (RICeST

    Directory of Open Access Journals (Sweden)

    Abdolhossein Farajpahlou

    2012-02-01

    Full Text Available Information centers are duly obliged to move in line with their parent organizations’ goals and missions in creating knowledge. In the age of information and communication revolution, and in a knowledge-based economy, organizations that are involved in creation of knowledge have an important role in communication and diffusion of knowledge. In the mean time, libraries and information centers change from being mere depository sources to knowledge institutions. The current research aimed to study the present state of knowledge management infrastructures of the Regional Information Center for Science and Technology (RICeST as a national and regional information center. The statistic population of this study was consisted of 87 staff. Data was collected by means of questionnaires, observation and interviews. The results showed the required infrastructure for KM activities were almost there, among different aspects of which, budgeting had a better situation in the institution under study. In regards with establishment of knowledge management, RICeST was paying more attention to information and communication technology and knowledge network via applications such as the Internet and extranets. Another fact was that in the RICeST, emphasis was on learning and on human resources as the substantial sources in creation of knowledge. Among other aspects, “organizational culture” was in a lower state compared with other aspects in the RICeST.

  6. Comparison Study of Thermal Insulation Characteristics from Oil Palm Fibre

    Directory of Open Access Journals (Sweden)

    Hassan S.

    2014-07-01

    Full Text Available In this study, investigation was conducted to study the use of solid biomass from palm oil mill as insulation material. The experimental study concentrates on using oil palm fiber to determine the unidirectional thermal conductivity, k. The experiment was conducted at different temperature ranges and packing density. The values of k obtained were found to be 0.2 W/m.K to 0.069 W/m.K for a packing density between 66 kg/m3 to 110 kg/m3, and at a temperature between 40ºC to 70ºC. Comparisons were made with others common insulating materials, and it was found that the experimental k values for oil palm waste insulation was lower by between 4 to 56 times for rockwool and between 7 to 57 times for glass fiber at low temperatures. The value k of oil palm fiber however showed an increase at higher temperatures and was lower at lower packing densities. Although not being able to match the k values of common insulators at higher temperatures, other factors such as cost and environmental benefits of using waste material should be taken into consideration and hence encouraging its use as at least a supplement to existing insulation materials

  7. Trap and recombination centers study in sprayed Cu2ZnSnS4 thin films

    International Nuclear Information System (INIS)

    In this work, a study of trap and recombination center properties in polycrystalline Cu2ZnSnS4 thin films is carried out in order to understand the poor performance in Cu2ZnSnS4 thin film solar cells. Thermally stimulated current has been studied in Cu2ZnSnS4 deposited by pneumatic spray pyrolysis method using various heating rates, in order to gain information about trap centers and/or deep levels present within the band-gap of this material. A set of temperature-dependent current curves revealed three levels with activation energy of 126 ± 10, 476 ± 25, and 1100 ± 100 meV. The possible nature of the three levels found is presented, in which the first one is likely to be related to CuZn antisites, while second and third to Sn vacancies and SnCu antisites, respectively. The values of frequency factor, capture cross section, and trap concentration have been determined for each center.

  8. Study of a conceptual nuclear energy center at Green River, Utah: water allocation issues

    International Nuclear Information System (INIS)

    According to preliminary studies, operation of a nine-reactor Nuclear Energy Center near Green River, Utah would require the acquisition of 126,630 acre-feet per year. Groundwater aquifers are a potential source of supply but do not present a viable option at this time due to insufficient data on aquifer characteristics. Surface supplies are available from the nearby Green and San Rafael Rivers, tributaries of the Colorado River, but are subject to important constraints. Because of these constraints, the demand for a dependable water supply for a Nuclear Energy Center could best be met by the acquisition of vested water rights from senior appropriators in either the Green or San Rafael Rivers. The Utah Water Code provides a set of procedures to accomplish such a transfer of water rights

  9. Wellness Center use at Los Alamos National Laboratory: a descriptive study

    Energy Technology Data Exchange (ETDEWEB)

    Wiggs, L.D.; Wilkinson, G.S.; Weber, C.

    1985-10-01

    This study describes employee participation during the first six months of the Los Alamos National Laboratory's corporate Wellness Program. We describe temporal patterns of use, preferred activities, frequency of use, and characteristics of employees participating in Wellness activities. Characteristics of Wellness participants are compared with characteristics of the Laboratory population. During this period the Wellness Center, a multi-use facility that houses Wellness Program activities, had 17,352 visits. Employees visiting the Wellness Center were typical of the Laboratory population in their racial and ethnic characteristics, but different in their sex and age composition. Wellness participants were younger and more likely to be female than the Laboratory population. 6 refs., 19 tabs.

  10. A Comparison of Staggered-Mesh Lagrange Plus Remap and Cell-Centered Direct Eulerian Godunov Schemes for Rulerian Shock Hydrodynamics

    Energy Technology Data Exchange (ETDEWEB)

    Pember, R.B.; Anderson, R.W.

    2000-11-22

    We present a comparison of two algorithms for solving the equations of unsteady inviscid compressible flow in a Eulerian frame. The first algorithm is a staggered grid Lagrange plus remap scheme. The Lagrange step in this method is a time-centered version of the scheme due to Tipton, while the remap step employs a variant of the corner transport upwind scheme due to Colella. The second algorithm is a spatially operator-split version of the higher-order Godunov scheme for gas dynamics due to Colella. They use the two methods to compute solutions to a number of one- and two-dimensional problems. The results show the accuracy and performance of the two schemes to be generally equivalent. In a 1984 survey paper by Woodward and Colella, staggered grid, Lagrange plus remap, artificial viscosity schemes did not compare favorably with cell-centered direct Eulerian higher-order Godunov methods. They examine, therefore, how certain features of the staggered grid scheme discussed here contribute to its improved accuracy. They show in particular that the improved accuracy of the present scheme is due in part to the use of a monotonic artificial viscosity in the Lagrange step and the use of an improved upwind method in the remap step.

  11. Problem Gambling Messages on College Counseling Center Websites: An Over-Time and Cross-Country Comparison.

    Science.gov (United States)

    McKinley, Christopher J; Luo, Yi; Wright, Paul J; Kraus, Ashley

    2016-03-01

    Gambling problems remain more prevalent among college students than any other adult population. Among the different informational services available to students struggling with this issue, the convenience, anonymity, and accessibility of the college counseling center website (CCW) make this a particularly appealing resource. This updated assessment explored the nature and frequency of problem gambling messages on U.S. CCWs. and assessed whether differences existed between U.S. and U.K. sites. Results showed that problem gambling remains disproportionately underrepresented on U.S. CCWs compared to other mental health concerns. Furthermore, in only one instance-links to pamphlets-did findings indicate any over-time increase in website communications. Overall, problem gambling than U.S. CCWs, this was mostly limited to links to self-help groups and issue-specific websites. Given the substantial health, social, and financial consequences linked to problem gambling behaviors, universities must focus on incorporating more information about this issue on CCWs and pursue initiatives to promote this service. PMID:25677613

  12. National Aeronautics and Space Administration Manned Spacecraft Center data base requirements study

    Science.gov (United States)

    1971-01-01

    A study was conducted to evaluate the types of data that the Manned Spacecraft Center (MSC) should automate in order to make available essential management and technical information to support MSC's various functions and missions. In addition, the software and hardware capabilities to best handle the storage and retrieval of this data were analyzed. Based on the results of this study, recommendations are presented for a unified data base that provides a cost effective solution to MSC's data automation requirements. The recommendations are projected through a time frame that includes the earth orbit space station.

  13. Differences in Cardiovascular Disease Risk Factors by Weight History: The Aerobics Center Longitudinal Study

    OpenAIRE

    Truesdale, Kimberly P.; Stevens, June; Cai, Jianwen

    2011-01-01

    The objective of this study was to compare cardiovascular disease (CVD) risk factor levels in adults with a history of weight loss to levels in adults who did not lose weight, after both groups subsequently experienced an approximate 1-year interval of weight maintenance. Extant data from the Aerobics Center Longitudinal Study (ACLS) were used to identify 5,151 adults who were weight maintainers (maintained weight within ±3.0% over two consecutive periods of ~1 year) or weight-loss maintainer...

  14. Radio study of the Arc and the Sgr A complex near the galactic center

    Energy Technology Data Exchange (ETDEWEB)

    Yusef-Zadeh, F.

    1986-01-01

    Radio-continuum and radio-recombination-line observations of the inner degree of the galactic center reveal a rich collection of thermal and nonthermal radio structures: (a) A network of linear filaments that are oriented perpendicular to the galactic plane constitute the major portion of the radio Arc at l approx. 0.2/sup 0/. (b) A number of thread-like filaments are situated asymmetrical with respect to the galactic plane and appear to be isolated unlike the linear filaments which are grouped together. (c) A network of arched filamentary structures that is disorganized in its appearance constitutes the curved portion of the Arc. Radio-recombination-line emission from these filaments indicates a thermal character for the emission. (d) An interaction between the linear and arched filaments is implied, and the strength of the magnetic field along the linear filaments is estimated to be between 10/sup -3/ and 10/sup -4/ gauss. (e) A very steep-spectrum ridge of emission is seen to emerge from Sgr A as it extends perpendicular to the galactic plane. (f) The relative location of Sgr A East, West, a cluster of H II regions, and the 50 km s/sup -1/ molecular cloud are discussed. Comparison of the low and high-frequency maps show clearly that Sgr A East lies behind Sgr A West.

  15. Radio study of the Arc and the Sgr A complex near the galactic center

    International Nuclear Information System (INIS)

    Radio-continuum and radio-recombination-line observations of the inner degree of the galactic center reveal a rich collection of thermal and nonthermal radio structures: (a) A network of linear filaments that are oriented perpendicular to the galactic plane constitute the major portion of the radio Arc at l ∼ 0.20. (b) A number of thread-like filaments are situated asymmetrical with respect to the galactic plane and appear to be isolated unlike the linear filaments which are grouped together. (c) A network of arched filamentary structures that is disorganized in its appearance constitutes the curved portion of the Arc. Radio-recombination-line emission from these filaments indicates a thermal character for the emission. (d) An interaction between the linear and arched filaments is implied, and the strength of the magnetic field along the linear filaments is estimated to be between 10-3 and 10-4 gauss. (e) A very steep-spectrum ridge of emission is seen to emerge from Sgr A as it extends perpendicular to the galactic plane. (f) The relative location of Sgr A East, West, a cluster of H II regions, and the 50 km s-1 molecular cloud are discussed. Comparison of the low and high-frequency maps show clearly that Sgr A East lies behind Sgr A West

  16. Center of Mass Compensation during Gait in Hip Arthroplasty Patients: Comparison between Large Diameter Head Total Hip Arthroplasty and Hip Resurfacing

    OpenAIRE

    Vicky Bouffard; Julie Nantel; Marc Therrien; Pascal-André Vendittoli; Martin Lavigne; François Prince

    2011-01-01

    Objective. To compare center of mass (COM) compensation in the frontal and sagittal plane during gait in patients with large diameter head total hip arthroplasty (LDH-THA) and hip resurfacing (HR). Design. Observational study. Setting. Outpatient biomechanical laboratory. Participants. Two groups of 12 patients with LDH-THA and HR recruited from a larger randomized study and 11 healthy controls. Interventions. Not applicable. Main Outcome Measures. To compare the distance between the hip pros...

  17. Fractal pattern growth simulation in electrodeposition and study of the shifting of center of mass

    International Nuclear Information System (INIS)

    We presented simulation of fractal pattern in electrodeposition (Diffusion limited aggregation) using concept of off lattice walk. It is seen that the growth patterns are based on a parameter called 'bias'. This parameter 'bias' controls the growth of patterns similar to that of electric field in electrodeposition technique. In present study the fractal patterns are grown for different values of 'bias'. Dendritic patterns grown at lower value of 'bias' comprises open structure and show limited branching. As the bias is increased the growth tends to be dense and show more crowded branching. Box counting was implemented to calculate fractal dimension. The structural and textural complexities and are compared with the experimental observations. It was also noted that in the evolution of DLA patterns, the center of mass of the growth is shifted slightly. We tracked the position of the center of mass of simulated electro deposits under different electric field conditions. The center of mass exhibit random walk like patterns and it wanders around the origin or the starting point of the growth.

  18. Hydrology and model study of the proposed Prosperity Reservoir, Center Creek Basin, southwestern Missouri

    Science.gov (United States)

    Harvey, Edward Joseph; Emmett, Leo F.

    1980-01-01

    A reservoir has been proposed on Center Creek, Jasper County, southwestern Missouri. Ground-water levels in the limestone uplands adjacent to the reservoir will rise when the impoundment is completed. The site is a few miles upstream from the Oronogo-Duenweg belt in the Tri-State zinc district. Grove Creek joins Center Creek downstream from the reservoir separating it from the mining belt. A model study indicates water-level rises varying from about 20 feet near the reservoir to 0.5 to 1.0 foot in the southern part of the Grove Creek drainage basin. A significant rise in the water table adjacent to the reservoir could increase mine-water discharge if Grove Creek is not an effective drain. However, it is probable that Grove Creek is an effective drain, and the higher ground-water levels in the reservoir area will increase ground-water discharge to Grove Creek, and in turn, Center Creek. The increase in ground-water discharge to Grove Creek will have the beneficial effect of diluting mine-water discharge from the Oronogo-Duenweg belt during periods of low flow. (USGS)

  19. Fractal pattern growth simulation in electrodeposition and study of the shifting of center of mass

    Energy Technology Data Exchange (ETDEWEB)

    Shaikh, Yusuf H. [Shivaji Arts, Commerce and Science College, Kannad 431103 (India)], E-mail: yusufshaikh123@yahoo.com; Khan, A.R. [Dr. Rafiq Zakaria Centre for Higher Learning, Dr. Rafiq Zakaria marg, Rauza Bagh, Aurangabad 431001 (India); Pathan, J.M. [Dr. Rafiq Zakaria Campus, Dr. Rafiq Zakaria marg, Rauza Bagh, Aurangabad 431001 (India); Patil, Aruna [Viveakanand College, Aurangabad 431001 (India); Behere, S.H. [Departments of Physics, Dr. Babasaheb Ambedkar Marathwada University, Aurangabad 431004 (India)

    2009-12-15

    We presented simulation of fractal pattern in electrodeposition (Diffusion limited aggregation) using concept of off lattice walk. It is seen that the growth patterns are based on a parameter called 'bias'. This parameter 'bias' controls the growth of patterns similar to that of electric field in electrodeposition technique. In present study the fractal patterns are grown for different values of 'bias'. Dendritic patterns grown at lower value of 'bias' comprises open structure and show limited branching. As the bias is increased the growth tends to be dense and show more crowded branching. Box counting was implemented to calculate fractal dimension. The structural and textural complexities and are compared with the experimental observations. It was also noted that in the evolution of DLA patterns, the center of mass of the growth is shifted slightly. We tracked the position of the center of mass of simulated electro deposits under different electric field conditions. The center of mass exhibit random walk like patterns and it wanders around the origin or the starting point of the growth.

  20. Anatomical study of the radius and center of curvature of the distal femoral condyle

    KAUST Repository

    Kosel, Jürgen

    2010-01-01

    In this anatomical study, the anteroposterior curvature of the surface of 16 cadaveric distal femurs was examined in terms of radii and center point. Those two parameters attract high interest due to their significance for total knee arthroplasty. Basically, two different conclusions have been drawn in foregoing studies: (1) The curvature shows a constant radius and (2) the curvature shows a variable radius. The investigations were based on a new method combining three-dimensional laser-scanning and planar geometrical analyses. This method is aimed at providing high accuracy and high local resolution. The high-precision laser scanning enables the exact reproduction of the distal femurs - including their cartilage tissue - as a three-dimensional computer model. The surface curvature was investigated on intersection planes that were oriented perpendicularly to the surgical epicondylar line. Three planes were placed at the central part of each condyle. The intersection of either plane with the femur model was approximated with the help of a b-spline, yielding three b-splines on each condyle. The radii and center points of the circles, approximating the local curvature of the b-splines, were then evaluated. The results from all three b-splines were averaged in order to increase the reliability of the method. The results show the variation in the surface curvatures of the investigated samples of condyles. These variations are expressed in the pattern of the center points and the radii of the curvatures. The standard deviations of the radii for a 90 deg arc on the posterior condyle range from 0.6 mm up to 5.1 mm, with an average of 2.4 mm laterally and 2.2 mm medially. No correlation was found between the curvature of the lateral and medial condyles. Within the range of the investigated 16 samples, the conclusion can be drawn that the condyle surface curvature is not constant and different for all specimens when viewed along the surgical epicondylar axis. For the portion

  1. A study of densitometry comparison among three radiographic processing solutions

    International Nuclear Information System (INIS)

    The radiographic image accuracy depends on the X-ray film information visibility. Good visibility is found by good contrast. Radiation exposure parameters (kVp, mAs) and film processing conditions have impact on contrast. In dentistry radiography machines, exposure time and processing procedure are set by radiographer. No optimized exposure time and processing conditions may lead to incorrect diagnosis and re-exposure of the patient. Therefore, we studied the performance of the three different available processing solutions with dental X-ray film. Materials and Methods: Dental intraoral E-speed films, size 2 (Kodak company, USA) were used in this study. These films were developed in a manual processor using three different brands of processing solution: 1) Taifsaz (Iran), 2) Darutasvir (Iran) and 3) Agfa (Germany) for temperatures of 25digC, 28digC and 30digC at the three different exposure times, 0.2 s, 0.25 s and 0.35 s. Performance was evaluated with respect to base plus fog, relative contrast and relative speed. Results: Darutasvir processing solution as the cheapest one showed higher base plus fog density at 25digC and 30digC than that of Taifsaz and Agfa solutions. Also, Darutasvir solution was found to have better relative contrast than that of the others, except for 30digC at 0.25 s. Relative speed was higher in Darutsavir solution than Agfa for 25digC at three exposure times used in this study, for 28digC at 0.2 s and for 30digC at 0.35 s. Taifsaz Processing solution was in the second order with respect to tested conditions. Conclusion: Comparison among available X-ray film processing solutions for different temperatures at different exposure times can help to maintain image quality while patient exposure and film cost are kept considerably low

  2. OECD/International Transport Forum Joint Transport Research Research Center Working Center Working Group Project : OECD Heavy Vehicle Benchmarking Study

    OpenAIRE

    Cerezo, Véronique; CENTRE D'ETUDES TECHNIQUES DE L'EQUIPEMENT DE LYON - CETE LYON; LABORATOIRE REGIONAL DES PONTS ET CHAUSSEES DE LYON - CETE DE LYON - LRPC LYON

    2009-01-01

    The Joint OECD/ITF Transport Research Centre (JTRC) Research Working Group has conducted a global study about the safety, environmental and productivity impacts of current and future heavy vehicle operations. The project Heavy Vehicles: Regulatory, Operational and Productivity Improvements included an investigation to benchmark the safety performance of representative vehicles from member countries participating in the OECD Working Group on heavy vehicles. This benchmarking study was done by ...

  3. Application of Interactive Classification System in University Study Course Comparison

    Directory of Open Access Journals (Sweden)

    Ilze BIRZNIECE

    2015-04-01

    Full Text Available The growing amount of information in the world has increased the need for computerized classification of different objects. This situation is present in higher education as well where the possibility of effortless detection of similarity between different study courses would give the opportunity to organize student exchange programmes effectively and facilitate curriculum management and development. This area which currently relies on manual time-consuming expert activities could benefit from application of smartly adapted machine learning technologies. Data in this problem domain is complex leading to inability for automatic classification approaches to always reach the desired result in terms of classification accuracy. Therefore, our approach suggests an automated/semi-automated classification solution, which incorporates both machine learning facilities and interactive involvement of a domain expert for improving classification results. The system's prototype has been implemented and experiments are carried out. This interactive classification system allows to classify educational data, which often comes in unstructured or semi-structured, incomplete and/or insufficient form, thus reducing the number of misclassified instances significantly in comparison with the automatic machine learning approach.

  4. Comparison study of microarray meta-analysis methods

    Directory of Open Access Journals (Sweden)

    Yang Yee

    2010-08-01

    Full Text Available Abstract Background Meta-analysis methods exist for combining multiple microarray datasets. However, there are a wide range of issues associated with microarray meta-analysis and a limited ability to compare the performance of different meta-analysis methods. Results We compare eight meta-analysis methods, five existing methods, two naive methods and a novel approach (mDEDS. Comparisons are performed using simulated data and two biological case studies with varying degrees of meta-analysis complexity. The performance of meta-analysis methods is assessed via ROC curves and prediction accuracy where applicable. Conclusions Existing meta-analysis methods vary in their ability to perform successful meta-analysis. This success is very dependent on the complexity of the data and type of analysis. Our proposed method, mDEDS, performs competitively as a meta-analysis tool even as complexity increases. Because of the varying abilities of compared meta-analysis methods, care should be taken when considering the meta-analysis method used for particular research.

  5. Laser Welding and Syncristallization Techniques Comparison: In Vitro Study

    Directory of Open Access Journals (Sweden)

    C. Fornaini

    2012-01-01

    Full Text Available Background. Laser welding was first reported in 1967 and for many years it has been used in dental laboratories with several advantages versus the conventional technique. Authors described, in previous works, the possibility of using also chair-side Nd : YAG laser device (Fotona Fidelis III, =1064 nm for welding metallic parts of prosthetic appliances directly in the dental office, extra- and also intra-orally. Syncristallisation is a soldering technique based on the creation of an electric arc between two electrodes and used to connect implants to bars intra-orally. Aim. The aim of this study was to compare two different laser welding devices with a soldering machine, all of these used in prosthetic dentistry. Material and Methods. In-lab Nd : YAG laser welding (group A = 12 samples, chair-side Nd : YAG laser welding (group B = 12 samples, and electrowelder (group C = 12 samples were used. The tests were performed on 36 CrCoMo plates and the analysis consisted in evaluation, by microscopic observation, of the number of fissures in welded areas of groups A and B and in measurement of the welding strength in all the groups. The results were statistically analysed by means of one-way ANOVA and Tukey-Kramer multiple comparison tests. Results. The means and standard deviations for the number of fissures in welded areas were 8.12±2.59 for group A and 5.20±1.38 for group B. The difference was statistical significant (=0.0023 at the level 95%. On the other hand, the means and standard deviations for the traction tests were 1185.50±288.56 N for group A, 896.41±120.84 N for group B, and 283.58±84.98 N for group C. The difference was statistical significant (=0.01 at the level 95%. Conclusion. The joint obtained by welding devices had a significant higher strength compared with that obtained by the electrowelder, and the comparison between the two laser devices used demonstrated that the chair-side Nd : YAG, even giving a

  6. Laser welding and syncristallization techniques comparison: in vitro study.

    Science.gov (United States)

    Fornaini, C; Merigo, E; Vescovi, P; Meleti, M; Nammour, S

    2012-01-01

    Background. Laser welding was first reported in 1967 and for many years it has been used in dental laboratories with several advantages versus the conventional technique. Authors described, in previous works, the possibility of using also chair-side Nd : YAG laser device (Fotona Fidelis III, λ = 1064 nm) for welding metallic parts of prosthetic appliances directly in the dental office, extra- and also intra-orally. Syncristallisation is a soldering technique based on the creation of an electric arc between two electrodes and used to connect implants to bars intra-orally. Aim. The aim of this study was to compare two different laser welding devices with a soldering machine, all of these used in prosthetic dentistry. Material and Methods. In-lab Nd : YAG laser welding (group A = 12 samples), chair-side Nd : YAG laser welding (group B = 12 samples), and electrowelder (group C = 12 samples) were used. The tests were performed on 36 CrCoMo plates and the analysis consisted in evaluation, by microscopic observation, of the number of fissures in welded areas of groups A and B and in measurement of the welding strength in all the groups. The results were statistically analysed by means of one-way ANOVA and Tukey-Kramer multiple comparison tests. Results. The means and standard deviations for the number of fissures in welded areas were 8.12 ± 2.59 for group A and 5.20 ± 1.38 for group B. The difference was statistical significant (P = 0.0023 at the level 95%). On the other hand, the means and standard deviations for the traction tests were 1185.50 ± 288.56 N for group A, 896.41 ± 120.84 N for group B, and 283.58 ± 84.98 N for group C. The difference was statistical significant (P = 0.01 at the level 95%). Conclusion. The joint obtained by welding devices had a significant higher strength compared with that obtained by the electrowelder, and the comparison between the two laser devices used demonstrated that the chair-side Nd : YAG, even giving

  7. Tip studies using CFD and comparison with tip loss models

    DEFF Research Database (Denmark)

    Hansen, Martin Otto Laver; Johansen, J.

    The flow past a rotating LM8.2 blade equipped with two different tips are computed using CFD. The different tip flows are analysed and a comparison with two different tip loss models is made. Keywords: tip flow, aerodynamics, CFD......The flow past a rotating LM8.2 blade equipped with two different tips are computed using CFD. The different tip flows are analysed and a comparison with two different tip loss models is made. Keywords: tip flow, aerodynamics, CFD...

  8. The QUASAR reproducibility study, Part II: Results from a multi center Arterial Spin Labeling test-retest Study

    OpenAIRE

    Petersen, Esben Thade; Mouridsen, Kim; Golay, Xavier

    2009-01-01

    Arterial Spin Labeling (ASL) is a method to measure perfusion using magnetically labeled blood water as an endogenous tracer. Being fully non-invasive, this technique is attractive for longitudinal studies of cerebral blood flow in healthy and diseased individuals, or as a surrogate marker of metabolism. So far, ASL has been restricted mostly to specialist centers due to a generally low SNR of the method and potential issues with user-dependent analysis needed to obtain quantitative measureme...

  9. Technology Transfer and Knowledge Management in Technological Innovation Center: A Case Study in Brazil

    OpenAIRE

    Luan Carlos Santos Silva; João Luiz Kovaleski; Silvia Gaia; Manon Garcia; Pedro Paulo de Andrade Júnior

    2013-01-01

    The purpose of this paper was to analyze the knowledge management in the process of technology transfer in a technological innovation center, known in Brazil as NIT. The used methodology included a qualitative approach. It was a case study of a Nucleus which is in a State University located in the south of Bahia state, Brazil. The results showed that this specific Nucleus presents a fine infrastructure regarding the legal regulation, based on the Federal Law of Innovation nº 10.973 and on the...

  10. Report on the feasibility study for improving electric motor service centers in Ghana

    Energy Technology Data Exchange (ETDEWEB)

    Hsu, J.S.; Jallouk, P.A.; Staunton, R.H.

    1999-12-10

    On March 3 and 4, 1998, a visit was made to Oak Ridge National Laboratory (ORNL) by two officials from Ghana: Mr. I.K. Mintah, Acting Executive Director, Technical Wing, Ministry of Mines and Energy (MOME) and Dr. A.K. Ofosu-Ahenkorah, Coordinator, Energy Efficiency and Conservation Program, MOME. As a result of this visit, Dr. John S. Hsu of ORNL was invited by MOME to visit the Republic of Ghana in order to study the feasibility of improving electric motor service centers in Ghana.

  11. Technology Transfer and Knowledge Management in Technological Innovation Center: A Case Study in Brazil

    OpenAIRE

    Luan Carlos Santos Silva; Joao Luiz Kovaleski; Silvia Gaia; Manon Garcia; Pedro Paulo de Andrade Junior

    2013-01-01

    The purpose of this paper was to analyze the knowledge management in the process of technology transfer in a technological innovation center, known in Brazil as NIT. The used methodology included a qualitative approach. It was a case study of a Nucleus which is in a State University located in the south of Bahia state, Brazil. The results showed that this specific Nucleus presents a fine infrastructure regarding the legal regulation, based on the Federal Law of Innovation no 10.973 and on the...

  12. AVTA Federal Fleet PEV Readiness Data Logging and Characterization Study for NASA Glenn Research Center

    Energy Technology Data Exchange (ETDEWEB)

    Schey, Stephen [Idaho National Lab. (INL), Idaho Falls, ID (United States); Francfort, Jim [Idaho National Lab. (INL), Idaho Falls, ID (United States)

    2014-10-01

    The Advanced Vehicle Testing Activity’s study seeks to collect and evaluate data to validate the utilization of advanced plug-in electric vehicle (PEV) transportation. This report focuses on the NASA Glenn Research Center (GRC) fleet to identify daily operational characteristics of select vehicles and report findings on vehicle and mission characterizations to support the successful introduction of PEVs into the agencies’ fleets. Individual observations of these selected vehicles provide the basis for recommendations related to electric vehicle adoption and whether a battery electric vehicle or plug-in hybrid electric vehicle (collectively referred to as PEVs) can fulfill the mission requirements.

  13. A study of shame from sexual abuse within the context of a Norwegian incest center.

    Science.gov (United States)

    Pettersen, Kaare Torgny

    2013-01-01

    Working with those who have experienced sexual abuse is a complicated matter because such abuse not only involves the violation of the victim's body, but it often generates shame in those involved. This article is based on empirical data from 26 hours of videotaped focus group interviews with 19 adult men and women in a Norwegian incest center who spoke openly of the shame they experienced from sexual abuse as children, parents, and employees. Findings from this study show that shame from sexual abuse can be grouped into seven major categories: (a) family, (b) emotions, (c) body, (d) food, (e) self-image, (f) sex, and (g) therapy. PMID:23924177

  14. Validade da escala de depressão do Center for Epidemiological Studies entre idosos brasileiros Validity of the Center for Epidemiological Studies Depression Scale among Brazilian elderly

    Directory of Open Access Journals (Sweden)

    Samila Sather Tavares Batistoni

    2007-08-01

    Full Text Available OBJETIVO: Obter validade interna, de construto e de critério para a escala Center for Epidemiological Studies - Depression, em idosos. MÉTODOS: O instrumento foi aplicado a 903 idosos residentes em Juiz de Fora, Estado de Minas Gerais, entre os anos de 2002-2003. Os resultados foram comparados com a versão brasileira da Geriatric Depression Scale, aplicado a uma subamostra de 446 respondentes. A consistência interna das duas escalas foi aferida pelo coeficiente alfa de Cronbach, calculado para os itens em sua totalidade e para os itens de cada fator obtido para o instrumento avaliado. Para avaliar a validade de construto, seus 20 itens foram submetidos à análise fatorial exploratória a fim de conhecer o padrão de variação conjunta dos itens e a variância explicada por cada fator. RESULTADOS: O instrumento revelou índices satisfatórios de validade interna (alfa=0,860, sensibilidade (74,6% e especificidade (73,6%, para nota de corte >11. Entretanto, apontou freqüência relativamente alta de falsos positivos em comparação à Geriatric Depression Scale: de 33,8% vs. 15%. A análise fatorial exploratória do instrumento gerou estrutura fatorial com três fatores: afetos negativos, dificuldades de iniciar comportamentos e afetos positivos. CONCLUSÕES: O instrumento mostrou-se psicometricamente adequado para uso entre idosos. Entretanto, estudos adicionais de natureza longitudinal e transversal, desenvolvidos em diferentes contextos, poderão esclarecer os efeitos de variáveis somáticas e situacionais sobre os resultados desse instrumento em pessoas idosas.OBJECTIVE: To obtain internal construct and criteria validity for the Center of Epidemiological Studies - Depression scale in elderly people. METHODS: The instrument was applied to 903 elderly living in a city in southeastern Brazil, between 2002 and 2003. Results were compared with the Brazilian version of the CES-D applied to a sub-sample of 446 participants. Internal consistency

  15. Executive summary. Conceptual studies nuclear energy center Lake Hartwell, S.C., Phase III

    International Nuclear Information System (INIS)

    This document summarizes a conceptual study on the feasibility and practicality of developing a nuclear energy center (NEC) at a specific site in the SSEB region. The site selected for this conceptual study is at Lake Hartwell, South Carolina. The conceptual NEC at Lake Hartwell consists of twelve 1250-MW(e) LWRs arranged on the site in four cluster of three units each, know as triads. The nominal distance between triads was selected as 2-1/2 miles. The total electric output of 15,000 MWe to be generated by the NEC would be transmitted to five major utilities in South Carolina, North Carolina, and Georgia. Objective of the study was to assess the technical, socioeconomic, environmental, and institutional issues relating to the NEC at the conceptual study site. The basic finding was that the concept of a NEC on the Lake Hartwell site is feasible, but further analysis of institutional issues and possible legislation would be required

  16. Occupational dose measurement in interventional cardiology, dosimetry comparison study

    International Nuclear Information System (INIS)

    The number of cardiology interventional procedures has significantly increased recently. This is due to the reliability of the diagnostic equipment to diagnose many heart disease. In the procedures the x-ray used results in increasing radiation doses to the staff. The cardiologists and other staff members in interventional cardiology are usually working close to the area under examination and receive the dose primarily from scattered radiation from the patient. Therefore workers in interventional cardiology are expected to receive high doses. This study overviews the status of occupational exposure at the three cardiology centers at three different hospitals in Khartoum compared with that received by workers at other medical practices (radiotherapy, nuclear medicine and diagnostic radiology) in the Institute of Nuclear and Technology (INMO) at El Gezira. The TLD Harshaw 6600 reader was used in the assessment of effective dose for Hp (10). Two TLDs were used by each worker at the three cardiology centres, one worn under a protective apron and the other worn outside and above the apron as specified by the ICRP. Each worker at the other sections was facilitated with one dosimeter to be worn on the chest. The annual doses received by 14 cardiologists, 13 nurses and 9 technologists at the three cardiology centres were in the range: (0.84-4.77), (0.15-2.08), (0.32-1.10) mSv respectively. In the INMO the annual doses received by 7 doctors, 5 nurses and 14 technologists were in the range: (0.12-0.51), (0.11-0.65), (0.03-1.39) mSv respectively. The results showed that the annual doses received by the workers do not exceed 20 mSv. The study also indicated that doses received by workers in interventional cardiology, in particular the cardiologists are high compared to that received at the other medical sections.(Author)

  17. Variable-Centered and Person-Centered Approaches to Studying Mexican-Origin Mother-Daughter Cultural Orientation Dissonance

    Science.gov (United States)

    Bamaca-Colbert, Mayra Y.; Gayles, Jochebed G.

    2010-01-01

    The overall aim of the current study was to identify the methodological approach and corresponding analytic procedure that best elucidated the associations among Mexican-origin mother-daughter cultural orientation dissonance, family functioning, and adolescent adjustment. To do so, we employed, and compared, two methodological approaches (i.e.,…

  18. Blanket comparison and selection study. Final report. Volume 1

    Energy Technology Data Exchange (ETDEWEB)

    1984-09-01

    The study focused on: (1) Development of reference design guidelines, evaluation criteria, and a methodology for evaluating and ranking candidate blanket concepts. (2) Compilation of the required data base and development of a uniform systems analysis for comparison. (3) Development of conceptual designs for the comparative evaluation. (4) Evaluation of leading concepts for engineering feasibility, economic performance, and safety. (5) Identification and prioritization of R and D requirements for the leading blanket concepts. Sixteen concepts (nine TMR and seven tokamak) which were identified as leading candidates in the early phases of the study, were evaluated in detail. The overall evaluation concluded that the following concepts should provide the focus for the blanket R and D program: (Breeder/Coolant/Structure), Lithium/Lithium/Vanadium Alloy, Li/sub 2/O/Helium/Ferritic Steel, LiPb Alloy/LiPb Alloy/Vanadium Alloy, and Lithium/Helium/Ferritic Steel. The primary R and D issues for the Li/Li/V concept are the development of an advanced structural alloy, resolution of MHD and corrosion problems, provision for an inert atmosphere (e.g., N/sub 2/) in the reactor building, and the development of non-water cooled near-plasma components, particularly for the tokamak. The main issues for the LiPb/LiPb/V concept are similar to the Li/Li/V blanket with the addition of resolving the tritium recovery issue. The R and D issues for Li/sub 2/O/He/FS concept include resolution of the tritium recovery/containment issue, achieving adequate tritium breeding and resolving other solid breeder issues such as swelling and fabrication concerns. Major concerns for the Li/He/FS concept are related to its rather poor economic performance. Improvement of its economic performance will be somewhat concept-dependent and will be more of a systems engineering issue.

  19. Blanket comparison and selection study. Final report. Volume 2

    International Nuclear Information System (INIS)

    The study focused on: (1) Development of reference design guidelines, evaluation criteria, and a methodology for evaluating and ranking candidate blanket concepts. (2) Compilation of the required data base and development of a uniform systems analysis for comparison. (3) Development of conceptual designs for the comparative evaluation. (4) Evaluation of leading concepts for engineering feasibility, economic performance, and safety. (5) Identification and prioritization of R and D requirements for the leading blanket concepts. Sixteen concepts (nine TMR and seven tokamak) which were identified as leading candidates in the early phases of the study, were evaluated in detail. The overall evaluation concluded that the following concepts should provide the focus for the blanket R and D program: (Breeder/Coolant/Structure), Lithium/Lithium/Vanadium Alloy, Li2O/Helium/Ferritic Steel, LiPb Alloy/LiPb Alloy/Vanadium Alloy, and Lithium/Helium/Ferritic Steel. The primary R and D issues for the Li/Li/V concept are the development of an advanced structural alloy, resolution of MHD and corrosion problems, provision for an inert atmosphere (e.g., N2) in the reactor building, and the development of non-water cooled near-plasma components, particularly for the tokamak. The main issues for the LiPb/LiPb/V concepts are similar to the Li/Li/V blanket with the addition of resolving the tritium recovery issue. The R and D issues for Li2O/He/FS concept include resolution of the tritium recovery/containment issue, achieving adequate tritium breeding and resolving other solid breeder issues such as swelling and fabrication concerns. Major concerns for the Li/He/FS concept are related to its rather poor economic performance. Improvement of its economic performance will be somewhat concept-dependent and will be more of a systems engineering issue

  20. Blanket comparison and selection study. Final report. Volume 1

    International Nuclear Information System (INIS)

    The study focused on: (1) Development of reference design guidelines, evaluation criteria, and a methodology for evaluating and ranking candidate blanket concepts. (2) Compilation of the required data base and development of a uniform systems analysis for comparison. (3) Development of conceptual designs for the comparative evaluation. (4) Evaluation of leading concepts for engineering feasibility, economic performance, and safety. (5) Identification and prioritization of R and D requirements for the leading blanket concepts. Sixteen concepts (nine TMR and seven tokamak) which were identified as leading candidates in the early phases of the study, were evaluated in detail. The overall evaluation concluded that the following concepts should provide the focus for the blanket R and D program: (Breeder/Coolant/Structure), Lithium/Lithium/Vanadium Alloy, Li2O/Helium/Ferritic Steel, LiPb Alloy/LiPb Alloy/Vanadium Alloy, and Lithium/Helium/Ferritic Steel. The primary R and D issues for the Li/Li/V concept are the development of an advanced structural alloy, resolution of MHD and corrosion problems, provision for an inert atmosphere (e.g., N2) in the reactor building, and the development of non-water cooled near-plasma components, particularly for the tokamak. The main issues for the LiPb/LiPb/V concept are similar to the Li/Li/V blanket with the addition of resolving the tritium recovery issue. The R and D issues for Li2O/He/FS concept include resolution of the tritium recovery/containment issue, achieving adequate tritium breeding and resolving other solid breeder issues such as swelling and fabrication concerns. Major concerns for the Li/He/FS concept are related to its rather poor economic performance. Improvement of its economic performance will be somewhat concept-dependent and will be more of a systems engineering issue

  1. Blanket comparison and selection study. Final report. Volume 2

    Energy Technology Data Exchange (ETDEWEB)

    1984-09-01

    The study focused on: (1) Development of reference design guidelines, evaluation criteria, and a methodology for evaluating and ranking candidate blanket concepts. (2) Compilation of the required data base and development of a uniform systems analysis for comparison. (3) Development of conceptual designs for the comparative evaluation. (4) Evaluation of leading concepts for engineering feasibility, economic performance, and safety. (5) Identification and prioritization of R and D requirements for the leading blanket concepts. Sixteen concepts (nine TMR and seven tokamak) which were identified as leading candidates in the early phases of the study, were evaluated in detail. The overall evaluation concluded that the following concepts should provide the focus for the blanket R and D program: (Breeder/Coolant/Structure), Lithium/Lithium/Vanadium Alloy, Li/sub 2/O/Helium/Ferritic Steel, LiPb Alloy/LiPb Alloy/Vanadium Alloy, and Lithium/Helium/Ferritic Steel. The primary R and D issues for the Li/Li/V concept are the development of an advanced structural alloy, resolution of MHD and corrosion problems, provision for an inert atmosphere (e.g., N/sub 2/) in the reactor building, and the development of non-water cooled near-plasma components, particularly for the tokamak. The main issues for the LiPb/LiPb/V concepts are similar to the Li/Li/V blanket with the addition of resolving the tritium recovery issue. The R and D issues for Li/sub 2/O/He/FS concept include resolution of the tritium recovery/containment issue, achieving adequate tritium breeding and resolving other solid breeder issues such as swelling and fabrication concerns. Major concerns for the Li/He/FS concept are related to its rather poor economic performance. Improvement of its economic performance will be somewhat concept-dependent and will be more of a systems engineering issue.

  2. Blanket comparison and selection study. Final report. Volume 3

    Energy Technology Data Exchange (ETDEWEB)

    1984-09-01

    The study focused on: (1) Development of reference design guidelines, evaluation criteria, and a methodology for evaluating and ranking candidate blanket concepts. (2) Compilation of the required data base and development of a uniform systems analysis for comparison. (3) Development of conceptual designs for the comparative evaluation. (4) Evaluation of leading concepts for engineering feasibility, economic performance, and safety. (5) Identification and prioritization of R and D requirements for the leading blanket concepts. Sixteen concepts (nine TMR and seven tokamak) which were identified as leading candidates in the early phases of the study, were evaluated in detail. The overall evaluation concluded that the following concepts should provide the focus for the blanket R and D program: (Breeder/Coolant/Structure), Lithium/Lithium/Vanadium Alloy, Li/sub 2/O/Helium/Ferritic Steel, LiPb Alloy/LiPb Alloy/Vanadium Alloy, and Lithium/Helium/Ferritic Steel. The primary R and D issues for the Li/Li/V concept are the development of an advanced structural alloy, resolution of MHD and corrosion problems, provision for an inert atmosphere (e.g., N/sub 2/) in the reactor building, and the development of non-water cooled near-plasma components, particularly for the tokamak. The main issues for the LiPb/LiPb/V concept are similar to the Li/Li/V blanket with the addition of resolving the tritium recovery issue. The R and D issues for Li/sub 2/O/He/FS concept include resolution of the tritium recovery/containment issue, achieving adequate tritium breeding and resolving other solid breeder issues such as swelling and fabrication concerns. Major concerns for the Li/He/FS concepts are related to its rather poor economic performance. Improvement of its economic performance will be somewhat concept-dependent and will be more of a systems engineering issue.

  3. Blanket comparison and selection study. Final report. Volume 3

    International Nuclear Information System (INIS)

    The study focused on: (1) Development of reference design guidelines, evaluation criteria, and a methodology for evaluating and ranking candidate blanket concepts. (2) Compilation of the required data base and development of a uniform systems analysis for comparison. (3) Development of conceptual designs for the comparative evaluation. (4) Evaluation of leading concepts for engineering feasibility, economic performance, and safety. (5) Identification and prioritization of R and D requirements for the leading blanket concepts. Sixteen concepts (nine TMR and seven tokamak) which were identified as leading candidates in the early phases of the study, were evaluated in detail. The overall evaluation concluded that the following concepts should provide the focus for the blanket R and D program: (Breeder/Coolant/Structure), Lithium/Lithium/Vanadium Alloy, Li2O/Helium/Ferritic Steel, LiPb Alloy/LiPb Alloy/Vanadium Alloy, and Lithium/Helium/Ferritic Steel. The primary R and D issues for the Li/Li/V concept are the development of an advanced structural alloy, resolution of MHD and corrosion problems, provision for an inert atmosphere (e.g., N2) in the reactor building, and the development of non-water cooled near-plasma components, particularly for the tokamak. The main issues for the LiPb/LiPb/V concept are similar to the Li/Li/V blanket with the addition of resolving the tritium recovery issue. The R and D issues for Li2O/He/FS concept include resolution of the tritium recovery/containment issue, achieving adequate tritium breeding and resolving other solid breeder issues such as swelling and fabrication concerns. Major concerns for the Li/He/FS concepts are related to its rather poor economic performance. Improvement of its economic performance will be somewhat concept-dependent and will be more of a systems engineering issue

  4. Gender and Women Development Initiatives in Bangladesh: A Study of Rural Mother Center.

    Science.gov (United States)

    Karim, K M Rabiul; Emmelin, Maria; Lindberg, Line; Wamala, Sarah

    2016-01-01

    Women-focused development initiatives have become a controversial issue connected with women's health and welfare. Previous studies indicated that development initiatives might increase women's workload, family conflict, and marital violence. This study explored the gendered characteristics of a development initiative Rural Mother Center in Bangladesh. Data incorporated policy document and interviews of social workers working with the mother centers in two northwest subdistricts. The qualitative content analysis of data emerged a general theme of expanding women's responsibility while maintaining male privilege explaining gendered design and practice of the development initiative. The theme was supported by two gendered categories related to the design: (a) essentializing women's participation; (b) maintaining traditional gender, and four categories related to the practice; (c) inadequate gender knowledge and skills; (d) reinforcing traditional gender; (e) using women for improving office performance; and (f) upholding male privilege. The study suggests that though women-focused development initiatives need to be embraced with gender-redistributive policies, the social workers should be trained for attaining gender-transformative motivation and competencies. PMID:27149647

  5. Prospective Randomized Comparison of Open versus Transperitoneal Laparoscopic Ureterolithotomy: Experience of a Single Center from Northern India

    OpenAIRE

    Garg, Manish; Singh, Vishwajeet; Sinha, Rahul J.; Sankhwar, Satya N.; Kumar, Manoj; Kumar, Amit; Prakash, Jai; Kumar, Pradeep; Pandey, Mohit

    2013-01-01

    Aim Prospective randomized study on transperitoneal laparoscopic ureterolithotomy (TPLU) versus open ureterolithotomy (OU) for treatment of large impacted ureteric stones (≥ 1.5 cm) and assessment of overall results. Material & Methods In a prospective study between 2010 to 2012, 30 patients underwent TPLU and 30 OU based on 1:1 randomization. The operation was indicated primarily in 44 cases or after failed shock-wave lithotripsy/ureteroscopy in 16 cases. Two groups were compared for operati...

  6. Structure and content of radiology reports, a quantitative and qualitative study in eight medical centers

    Energy Technology Data Exchange (ETDEWEB)

    Bosmans, Jan M.L. [Department of Radiology, Antwerp University Hospital (Belgium); Faculty of Medicine, Antwerp University (Belgium)], E-mail: jan.bosmans@uza.be; Weyler, Joost J. [Department of Epidemiology and Social Medicine, Antwerp University (Belgium); Parizel, Paul M. [Department of Radiology, Antwerp University Hospital (Belgium); Faculty of Medicine, Antwerp University (Belgium)

    2009-11-15

    Rationale and objectives: In order to determine how the quality of the radiology report can be improved, the variation in content, form and length of the report needs to be examined. The purpose of the present study was to investigate and compare the length and structure of radiology reports (reports of abdominal CT examinations) in eight hospitals in the Netherlands and Flanders, the Dutch speaking part of Belgium. Materials and methods: Eight hundred reports - 100 from each collaborating center - were collected. After exclusion of the reports that did not fulfill the criteria for a standard CT examination of the abdomen, 525 were retained for further study. The structure of each report was analyzed and the constituting parts (technical information, description of the findings, conclusion, advice, remark, note) were determined. The character and word count of the report and its constituting parts were measured and the results were grouped according to the country (Netherlands vs. Belgium/Flanders), the qualification of the radiologist (staff members vs. residents.) and the nature of the hospital (university medical centers vs. community hospitals). Results: Statistically significant differences were found between the Netherlands and Flanders, and between staff members and residents. The authors also found a wide variety in the lay-out and the overall content of the radiology report. Conclusion: While most of the differences we found are probably rooted in local tradition, a standard model for the radiology report in centers sharing the same language may be a means to avoid interpretation mistakes by referring physicians, and to promote better care.

  7. Structure and content of radiology reports, a quantitative and qualitative study in eight medical centers

    International Nuclear Information System (INIS)

    Rationale and objectives: In order to determine how the quality of the radiology report can be improved, the variation in content, form and length of the report needs to be examined. The purpose of the present study was to investigate and compare the length and structure of radiology reports (reports of abdominal CT examinations) in eight hospitals in the Netherlands and Flanders, the Dutch speaking part of Belgium. Materials and methods: Eight hundred reports - 100 from each collaborating center - were collected. After exclusion of the reports that did not fulfill the criteria for a standard CT examination of the abdomen, 525 were retained for further study. The structure of each report was analyzed and the constituting parts (technical information, description of the findings, conclusion, advice, remark, note) were determined. The character and word count of the report and its constituting parts were measured and the results were grouped according to the country (Netherlands vs. Belgium/Flanders), the qualification of the radiologist (staff members vs. residents.) and the nature of the hospital (university medical centers vs. community hospitals). Results: Statistically significant differences were found between the Netherlands and Flanders, and between staff members and residents. The authors also found a wide variety in the lay-out and the overall content of the radiology report. Conclusion: While most of the differences we found are probably rooted in local tradition, a standard model for the radiology report in centers sharing the same language may be a means to avoid interpretation mistakes by referring physicians, and to promote better care.

  8. Prediction of attendance at fitness center : a comparison between the theory of planned behavior, the social cognitive theory, and the physical activity maintenance theory

    OpenAIRE

    Jekauc, Darko; Völkle, Manuel; Wagner, Matthias O.; Mess, Filip; Reiner, Miriam; Renner, Britta

    2015-01-01

    In the processes of physical activity (PA) maintenance specific predictors are effective, which differ from other stages of PA development. Recently, Physical Activity Maintenance Theory (PAMT) was specifically developed for prediction of PA maintenance. The aim of the present study was to evaluate the predictability of the future behavior by the PAMT and compare it with the Theory of Planned Behavior (TPB) and Social Cognitive Theory (SCT). Participation rate in a fitness center was observed...

  9. A comparison of center of pressure variables recorded during running in barefoot, minimalist footwear, and traditional running shoes in the female population

    OpenAIRE

    Greenhalgh, Andrew; Hampson, Jenny; Thain, Peter; Sinclair, Jonathan

    2014-01-01

    In recent years, barefoot running and running in minimalist footwear as opposed to running in traditional running shoes has increased in popularity. The influence of such footwear choices on center of pressure (COP) displacements and velocity variables linked to injuries is yet to be understood. The aim of this study was to investigate differences between COP variables, linked to injuries measured in barefoot running, a minimalist running shoe, and with traditional running shoes and condition...

  10. Quality of life after pertrochanteric femoral fractures treated with a gamma nail: a single center study of 62 patients

    Directory of Open Access Journals (Sweden)

    Giessauf Christian

    2012-10-01

    Full Text Available Abstract Background Intramedullary nailing of pertrochanteric femoral fractures has grown in popularity over the past 2 decades likely because this procedure is associated with a low risk for postoperative morbidity and a fast recovery of function. The evaluation of outcomes associated with pertrochanteric nailing has mainly been based on objective measures. The purpose of the present study is to correlate patients’ health-related quality of life results after intramedullary nailing of pertrochanteric fractures with objective outcome measures. Methods We conducted a single-center study including 62 patients (mean age 80 ± 10 years with pertrochanteric fractures treated with a Gamma 3 Nail. Health related quality of life was measured using the Short Form-36. These results were compared to both US and Austrian age and sex-adjusted population norms. The objective outcome measures studied at one year postoperatively included Harris Hip Score, range of motion, leg length, body mass index, neck-shaft angle and grade of osteoarthritis. Results According to the Harris Hip Score 43 patients (67% had excellent or good results. There was no significant difference in the average neck-shaft angle comparing affected hip to non-affected hip at 12 months postoperatively. The average osteoarthritis score, for both the injured and uninjured hip, did not differ significantly. We found significant differences between the bodily pain, social functioning and mental health subscales and two summary scores of the Short-Form 36 in comparison to Austrian population norms. Complication rate was 8%. Conclusions The results of this study confirm that intramedullary nailing with the use of a Gamma Nail is a safe treatment option for stable and unstable pertrochanteric fractures. Despite good functional and radiographic results we noticed a substantial fall off in patients’ quality of life up to 12 months after operation.

  11. PERFORMANCE BASED PAY AS A DETERMINANT OF JOB SATISFACTION: A STUDY IN MALAYSIA GIATMARA CENTERS

    Directory of Open Access Journals (Sweden)

    Azman ISMAIL

    2011-01-01

    Full Text Available Compensation management literature highlights that performance based payhas two major characteristics: participation in pay systems and adequacy ofpay. The ability of management to properly implement such pay systems maylead to increased job satisfaction in organizations. Though, the nature of thisrelationship is interesting, little is known about the influence of performancebased pay on job satisfaction in compensation management literature.Therefore, this study was conducted to examine the relationship between payfor performance and job satisfaction in Malaysian GIATMARA centers. Theresults of exploratory factor analysis confirmed that measurement scalesused in this study satisfactorily met the standards of validity and reliabilityanalyses. An outcome of stepwise regression analysis shows thatdeterminant of job satisfaction is performance based pay. Further, this resultconfirms that pay for performance is an important antecedent for jobsatisfaction in the studied organizations.

  12. X-ray absorption spectroscopic studies of the dinuclear iron center in methane monooxygenase and the sulfure and chlorine centers in photographic materials

    Energy Technology Data Exchange (ETDEWEB)

    DeWitt, J.G.

    1992-12-01

    The dinuclear iron center of the hydroxylase component of soluble methane monooxygenase (MMO) from Methylococcus capsulatus and Methylosinus trichosporiwn has been studied by X-ray absorption spectroscopy. Analysis of the Fe K-edge EXAFS revealed that the first shell coordination of the Fe(HI)Fe(IH) oxidized state of the hydroxylase from M. capsulatus consists of approximately 6 N and 0 atoms at an average distance of 2.04 [Angstrom]. The Fe-Fe distance was determined to be 3.4 [Angstrom]. No evidence for the presence of a short oxo bridge in the iron center of the oxidized hydroxylase was found, suggesting that the active site of MMO is significantly different from the active sites of the dinuclear iron proteins hemery and ribonucleotide reductase. In addition, the results of the first shell fits suggest that there are more oxygen than nitrogen donor ligands.

  13. X-ray absorption spectroscopic studies of the dinuclear iron center in methane monooxygenase and the sulfure and chlorine centers in photographic materials

    Energy Technology Data Exchange (ETDEWEB)

    DeWitt, J.G.

    1992-12-01

    The dinuclear iron center of the hydroxylase component of soluble methane monooxygenase (MMO) from Methylococcus capsulatus and Methylosinus trichosporiwn has been studied by X-ray absorption spectroscopy. Analysis of the Fe K-edge EXAFS revealed that the first shell coordination of the Fe(HI)Fe(IH) oxidized state of the hydroxylase from M. capsulatus consists of approximately 6 N and 0 atoms at an average distance of 2.04 {Angstrom}. The Fe-Fe distance was determined to be 3.4 {Angstrom}. No evidence for the presence of a short oxo bridge in the iron center of the oxidized hydroxylase was found, suggesting that the active site of MMO is significantly different from the active sites of the dinuclear iron proteins hemery and ribonucleotide reductase. In addition, the results of the first shell fits suggest that there are more oxygen than nitrogen donor ligands.

  14. Sex expression and floral diversity in Jatropha curcas: a population study in its center of origin.

    Science.gov (United States)

    Adriano-Anaya, María de Lourdes; Pérez-Castillo, Edilma; Salvador-Figueroa, Miguel; Ruiz-González, Sonia; Vázquez-Ovando, Alfredo; Grajales-Conesa, Julieta; Ovando-Medina, Isidro

    2016-01-01

    Sex expression and floral morphology studies are central to understand breeding behavior and to define the productive potential of plant genotypes. In particular, the new bioenergy crop Jatropha curcas L. has been classified as a monoecious species. Nonetheless, there is no information about its reproductive diversity in the Mesoamerican region, which is considered its center of origin and diversification. Thus, we determined sex expression and floral morphology in J. curcas populations from southern Mexico and Guatemala. Our results showed that most of J. curcas specimens had typical inflorescences with separate sexes (monoecious); meanwhile, the rest were atypical (gynoecious, androecious, andromonoecious, androgynomonoecious). The most important variables to group these populations, based on a discriminant analysis, were: male flower diameter, female petal length and male nectary length. From southern Mexico "Guerrero" was the most diverse population, and "Centro" had the highest variability among the populations from Chiapas. A cluster analysis showed that the accessions from southern Mexico were grouped without showing any correlation with the geographical origin, while those accessions with atypical sexuality were grouped together. To answer the question of how informative are floral morphological traits compared to molecular markers, we perform a Mantel correlation test between the distance matrix generated in this study and the genetic distance matrix (AFLP) previously reported for the same accessions. We found significant correlation between data at the level of accessions. Our results contribute to design genetic improvement programs by using sexually and morphologically contrasting plants from the center of origin. PMID:27257548

  15. Study about diagnostic quality in a public-center of mammography of Santa Fe, Argentina

    International Nuclear Information System (INIS)

    The objective is to apply a method that allows us to evaluate the diagnostic quality of a public-center of mammography and to validate it. The representative centers of a social class were grouped; this one is evaluated measuring the mechanics, electrics, dosimetrics and personal parameters of the process to get the mammography diagnostic. The original study and the respective report was submitted to the valuation of a panel of experts, who evaluated image, techniques and diagnostics. The equipment and techniques used are described in this case. The judgment of the ACR and the Argentine legislation are applied. The dosimetric results of the mammography practice serve to determine the local reference levels. The people who intervened in the diagnosis are evaluated, as well as the services that can influence it. Seeking the parametric sensibility in relationship with the succeeded and precocious diagnosis, the success of it is confirmed by the panel of experts. We conclude by indicating that the success percentage in the diagnosis is about 98,36%, that there is 100% of coincidence among the perception and the value of the study quality. The valuation of the image reaches 69,2% of the maximum score, and the placement technique, 73,9%. The parametric sensibilities of the principal variables are discussed. (author)

  16. Sex expression and floral diversity in Jatropha curcas: a population study in its center of origin

    Science.gov (United States)

    Adriano-Anaya, María de Lourdes; Pérez-Castillo, Edilma; Salvador-Figueroa, Miguel; Ruiz-González, Sonia; Vázquez-Ovando, Alfredo; Grajales-Conesa, Julieta

    2016-01-01

    Sex expression and floral morphology studies are central to understand breeding behavior and to define the productive potential of plant genotypes. In particular, the new bioenergy crop Jatropha curcas L. has been classified as a monoecious species. Nonetheless, there is no information about its reproductive diversity in the Mesoamerican region, which is considered its center of origin and diversification. Thus, we determined sex expression and floral morphology in J. curcas populations from southern Mexico and Guatemala. Our results showed that most of J. curcas specimens had typical inflorescences with separate sexes (monoecious); meanwhile, the rest were atypical (gynoecious, androecious, andromonoecious, androgynomonoecious). The most important variables to group these populations, based on a discriminant analysis, were: male flower diameter, female petal length and male nectary length. From southern Mexico “Guerrero” was the most diverse population, and “Centro” had the highest variability among the populations from Chiapas. A cluster analysis showed that the accessions from southern Mexico were grouped without showing any correlation with the geographical origin, while those accessions with atypical sexuality were grouped together. To answer the question of how informative are floral morphological traits compared to molecular markers, we perform a Mantel correlation test between the distance matrix generated in this study and the genetic distance matrix (AFLP) previously reported for the same accessions. We found significant correlation between data at the level of accessions. Our results contribute to design genetic improvement programs by using sexually and morphologically contrasting plants from the center of origin. PMID:27257548

  17. A comparison study of electrodes for neonate electrical impedance tomography

    International Nuclear Information System (INIS)

    Electrical impedance tomography (EIT) is an imaging technique that has the potential to be used for studying neonate lung function. The properties of the electrodes are very important in multi-frequency EIT (MFEIT) systems, particularly for neonates, as the skin cannot be abraded to reduce contact impedance. In this work, the impedance of various clinical electrodes as a function of frequency is investigated to identify the optimum electrode type for this application. Six different types of self-adhesive electrodes commonly used in general and neonatal cardiology have been investigated. These electrodes are Ag/AgCl electrodes from the Ambu® Cardiology Blue sensors range (BR, NF and BRS), Kendall (KittyCat(TM) and ARBO®) and Philips 13953D electrodes. In addition, a textile electrode without gel from Textronics was tested on two subjects to allow comparison with the hydrogel-based electrodes. Two- and four-electrode measurements were made to determine the electrode-interface and tissue impedances, respectively. The measurements were made on the back of the forearm of six healthy adult volunteers without skin preparation with 2.5 cm electrode spacing. Impedance measurements were carried out using a Solartron SI 1260 impedance/gain-phase analyser with a frequency range from 10 Hz to 1 MHz. For the electrode-interface impedance, the average magnitude decreased with frequency, with an average value of 5 kΩ at 10 kHz and 337 Ω at 1 MHz; for the tissue impedance, the respective values were 987 Ω and 29 Ω. Overall, the Ambu BRS, Kendall ARBO® and Textronics textile electrodes gave the lowest electrode contact impedance at 1 MHz. Based on the results of the two-electrode measurements, simple RC models for the Ambu BRS and Kendall-ARBO and Textronics textile electrodes have been derived for MFEIT applications

  18. Comparison of two LES codes for wind turbine wake studies

    International Nuclear Information System (INIS)

    For the third time a blind test comparison in Norway 2013, was conducted comparing numerical simulations for the rotor Cp and Ct and wake profiles with the experimental results. As the only large eddy simulation study among participants, results of the Technical University of Denmark (DTU) using their in-house CFD solver, EllipSys3D, proved to be more reliable among the other models for capturing the wake profiles and the turbulence intensities downstream the turbine. It was therefore remarked in the workshop to investigate other LES codes to compare their performance with EllipSys3D. The aim of this paper is to investigate on two CFD solvers, the DTU's in-house code, EllipSys3D and the open-sourse toolbox, OpenFoam, for a set of actuator line based LES computations. Two types of simulations are performed: the wake behind a signle rotor and the wake behind a cluster of three inline rotors. Results are compared in terms of velocity deficit, turbulence kinetic energy and eddy viscosity. It is seen that both codes predict similar near-wake flow structures with the exception of OpenFoam's simulations without the subgrid-scale model. The differences begin to increase with increasing the distance from the upstream rotor. From the single rotor simulations, EllipSys3D is found to predict a slower wake recovery in the case of uniform laminar flow. From the 3-rotor computations, it is seen that the difference between the codes is smaller as the disturbance created by the downstream rotors causes break down of the wake structures and more homogenuous flow structures. It is finally observed that OpenFoam computations are more sensitive to the SGS models

  19. Data-driven Ontology Development: A Case Study at NASA's Atmospheric Science Data Center

    Science.gov (United States)

    Hertz, J.; Huffer, E.; Kusterer, J.

    2012-12-01

    Well-founded ontologies are key to enabling transformative semantic technologies and accelerating scientific research. One example is semantically enabled search and discovery, making scientific data accessible and more understandable by accurately modeling a complex domain. The ontology creation process remains a challenge for many anxious to pursue semantic technologies. The key may be that the creation process -- whether formal, community-based, automated or semi-automated -- should encompass not only a foundational core and supplemental resources but also a focus on the purpose or mission the ontology is created to support. Are there tools or processes to de-mystify, assess or enhance the resulting ontology? We suggest that comparison and analysis of a domain-focused ontology can be made using text engineering tools for information extraction, tokenizers, named entity transducers and others. The results are analyzed to ensure the ontology reflects the core purpose of the domain's mission and that the ontology integrates and describes the supporting data in the language of the domain - how the science is analyzed and discussed among all users of the data. Commonalities and relationships among domain resources describing the Clouds and Earth's Radiant Energy (CERES) Bi-Directional Scan (BDS) datasets from NASA's Atmospheric Science Data Center are compared. The domain resources include: a formal ontology created for CERES; scientific works such as papers, conference proceedings and notes; information extracted from the datasets (i.e., header metadata); and BDS scientific documentation (Algorithm Theoretical Basis Documents, collection guides, data quality summaries and others). These resources are analyzed using the open source software General Architecture for Text Engineering, a mature framework for computational tasks involving human language.

  20. Building a Student-Centered Culture in Times of Natural Disaster: A Case Study

    Science.gov (United States)

    Hlinka, Karen Ramey

    2013-01-01

    Increased rates of student success and persistence have been positively linked to community colleges with student-centered cultures. A student-centered culture is one in which policies and practices promote a consistent message of concern and respect while expecting high standards of academic accomplishment. Developing a student-centered culture…

  1. R&D Characteristics and Organizational Structure: Case Studies of University-Industry Research Centers

    Science.gov (United States)

    Hart, Maureen McArthur

    2013-01-01

    Within the past few decades, university-industry research centers have been developed in large numbers and emphasized as a valuable policy tool for innovation. Yet little is known about the heterogeneity of organizational structure within these centers, which has implications regarding policy for and management of these centers. This dissertation…

  2. Audit of a Scientific Data Center for Certification as a Trustworthy Digital Repository: A Case Study

    Science.gov (United States)

    Downs, R. R.; Chen, R. S.

    2011-12-01

    Services that preserve and enable future access to scientific data are necessary to ensure that the data that are being collected today will be available for use by future generations of scientists. Many data centers, archives, and other digital repositories are working to improve their ability to serve as long-term stewards of scientific data. Trust in sustainable data management and preservation capabilities of digital repositories can influence decisions to use these services to deposit or obtain scientific data. Building on the Open Archival Information System (OAIS) Reference Model developed by the Consultative Committee for Space Data Systems (CCSDS) and adopted by the International Organization for Standardization as ISO 14721:2003, new standards are being developed to improve long-term data management processes and documentation. The Draft Information Standard ISO/DIS 16363, "Space data and information transfer systems - Audit and certification of trustworthy digital repositories" offers the potential to evaluate digital repositories objectively in terms of their trustworthiness as long-term stewards of digital resources. In conjunction with this, the CCSDS and ISO are developing another draft standard for the auditing and certification process, ISO/DIS 16919, "Space data and information transfer systems - Requirements for bodies providing audit and certification of candidate trustworthy digital repositories". Six test audits were conducted of scientific data centers and archives in Europe and the United States to test the use of these draft standards and identify potential improvements for the standards and for the participating digital repositories. We present a case study of the test audit conducted on the NASA Socioeconomic Data and Applications Center (SEDAC) and describe the preparation, the audit process, recommendations received, and next steps to obtain certification as a trustworthy digital repository, after approval of the ISO/DIS standards.

  3. Renal denervation: Results of a single-center cohort study; Renale Denervation. Ergebnisse einer Single-Center Kohortenstudie

    Energy Technology Data Exchange (ETDEWEB)

    Luetkens, J.A.; Thomas, D.; Doerner, J.; Schild, H.H.; Naehle, C.P. [Bonn Univ. (Germany). Dept. of Radiology; Wilhelm, K. [Johanniter Hospital, Bonn (Germany). Dept. of Radiology; Duesing, R. [Hypertension Center, Bonn (Germany); Woitas, R.P.; Hundt, F. [Bonn Univ. (Germany). Dept. of Internal Medicine I

    2015-01-15

    To investigate the effect of renal denervation on office-based and 24-h ambulatory blood pressure measurements (ABPM) in a highly selective patient population with drug-resistant hypertension. Patients with drug resistant hypertension eligible for renal denervation were included in the study population. Office blood pressure and ABPM were assessed prior to and after renal denervation. To detect procedure related renal or renal artery damage, magnetic resonance imaging (MRI) and angiography (MRA) were performed pre-interventional, one day post-interventional, and one month after renal denervation. Mean follow-up time between renal denervation and blood pressure re-assessment was 9.5 ± 3.9 months. Between August 2011 and March 2013, 17 patients prospectively underwent renal denervation. Pre-interventional mean office blood pressure and ABPM were 177.3 ± 20.3/103.8 ± 20.4 mmHg and 155.2 ± 20.5/93.7 ± 14.5 mmHg, respectively. Post-interventional, office blood pressure was significantly reduced to 144.7 ± 14.9/89.5 ± 12.1 (p < 0.05). ABPM values remained unchanged (147.9 ± 20.3/90.3 ± 15.6, p > 0.05). The number of prescribed antihypertensive drugs was unchanged after renal denervation (4.7 ± 2.0 vs. 4.2 ± 1.2, p = 0.18). No renovascular complications were detected in follow-up MRI. After renal denervation, no significant decrease in ABPM was observed. These results may indicate a limited impact of renal denervation for drug resistant hypertension.

  4. NASA Langley Research Center Systems Analysis & Concepts Directorate Participation in the Exploration Systems Architecture Study

    Science.gov (United States)

    Keyes, Jennifer; Troutman, Patrick A.; Saucillo, Rudolph; Cirillo, William M.; Cavanaugh, Steve; Stromgren, Chel

    2006-01-01

    The NASA Langley Research Center (LaRC) Systems Analysis & Concepts Directorate (SACD) began studying human exploration missions beyond low Earth orbit (LEO) in the year 1999. This included participation in NASA s Decadal Planning Team (DPT), the NASA Exploration Team (NExT), Space Architect studies and Revolutionary Aerospace Systems Concepts (RASC) architecture studies that were used in formulating the new Vision for Space Exploration. In May of 2005, NASA initiated the Exploration Systems Architecture Study (ESAS). The primary outputs of the ESAS activity were concepts and functional requirements for the Crewed Exploration Vehicle (CEV), its supporting launch vehicle infrastructure and identification of supporting technology requirements and investments. An exploration systems analysis capability has evolved to support these functions in the past and continues to evolve to support anticipated future needs. SACD had significant roles in supporting the ESAS study team. SACD personnel performed the liaison function between the ESAS team and the Shuttle/Station Configuration Options Team (S/SCOT), an agency-wide team charged with using the Space Shuttle to complete the International Space Station (ISS) by the end of Fiscal Year (FY) 2010. The most significant of the identified issues involved the ability of the Space Shuttle system to achieve the desired number of flights in the proposed time frame. SACD with support from the Kennedy Space Center performed analysis showing that, without significant investments in improving the shuttle processing flow, that there was almost no possibility of completing the 28-flight sequence by the end of 2010. SACD performed numerous Lunar Surface Access Module (LSAM) trades to define top level element requirements and establish architecture propellant needs. Configuration trades were conducted to determine the impact of varying degrees of segmentation of the living capabilities of the combined descent stage, ascent stage, and other

  5. Comparison of the centering ability of Wave·One and Reciproc nickel-titanium instruments in simulated curved canals

    OpenAIRE

    Lim, Young-Jun; Park, Su-Jung; Kim, Hyeon-Cheol; Min, Kyung-San

    2013-01-01

    Objectives The aim of this study was to evaluate the shaping ability of newly marketed single-file instruments, Wave·One (Dentsply-Maillefer) and Reciproc (VDW GmbH), in terms of maintaining the original root canal configuration and curvature, with or without a glide-path. Materials and Methods According to the instruments used, the blocks were divided into 4 groups (n = 10): Group 1, no glide-path / Wave·One; Group 2, no glide-path / Reciproc; Group 3, #15 K-file / Wave·One; Group 4, #15 K-f...

  6. Comparison of biofilm formation in clinical isolates of Candida species in a tertiary care center, North India

    Directory of Open Access Journals (Sweden)

    Vivek Agwan

    2015-01-01

    Full Text Available Background and Objectives: Biofilms are colonies of microbial cells encased in a self-produced organic polymeric matrix. The biofilm production is more important for nonalbicans Candida (NAC; as C. albicans possess many other mechanisms to establish infections. Correct identification of Candida species has gained importance due to persistent rise in infections caused by NAC. We sought to isolate, identify Candida species in clinical isolates and study biofilm formation. Materials and Methods: Modified microtiter plate method was performed to study biofilm formation by isolates in Sabouraud's dextrose broth. It was then quantitatively assessed using a spectrophotometer. Biofilm formation was graded as negative, +1, +2, +3 and + 4 on the basis of percentage absorbance. Results: Biofilm formation was observed in 16 of 40 (40.0% isolates of C. albicans as compared to 39 of 78 (50.0% of isolates of NAC. Strong (+4 biofilm production was seen in maximum biofilm producers in C. tropicalis (12 of 27 followed by C. albicans (8 of 16. Total biofilm producers were significantly more among high vaginal swab isolates 63.2% (12 of 19 and urine isolates 59.2% (29 of 49, when compared to blood isolates 34.2% (13 of 38 as well as other isolates 27.5% (11 of 40. Interpretation and Conclusions: NAC species are qualitatively and quantitatively superior biofilm producers than C. albicans. Biofilm production is the most important virulence factor of NAC species and compared to other lesions, it is more significantly associated with luminal infections.

  7. Study of radiation-induced paramagnetic centers in quartz and its possible use in radiation dosimetry

    International Nuclear Information System (INIS)

    A new EPR dosimetry system has been developed based on the radiation-formed stable paramagnetic centers in quartz. The first part of the thesis includes the preparation of quartz rods (diameter = 3 mm, length = 10 mm) where quartz powder was mixed with molten mixture of paraffin wax and ethylene vinyl acetate copolymer (EVA). The binding-mixture EVA / paraffin do not present interference or noise in the EPR signal before or after irradiation to high doses. The quartz rods were prepared by different concentrations (5, 10, 20, 30 and 50 %). The rods (30 %) show good mechanical properties for safe and multi-use handling. The second part is concerned with studying the dosimetric characteristics of gamma irradiation sensitive rods where the radiation-formed stable free radicals (E-center, peroxy radical and non-bridging oxygen hole center) which analyzed by using electron paramagnetic resonance (EPR) spectrometer. Unirradiated rods have no EPR signals. The useful dose range of these rods was found to range from 0.1 to 80 kGy depending on concentration of quartz powder, indicating their suitability for low and high dose gamma radiation applications. Also it was found that quartz rod exhibits a linear dose response in the dose regions 0.1-2.34 and 2.34-26 kGy at optimum EPR parameters. The dosimeter response was assessed using the peak-to-peak amplitude of the first-derivatives EPR spectrum. Its EPR signal was found unchanged in shape with different doses and different concentrations. A signal line spectrum attributed to the E-center was observed after irradiation, and this radical is insensitive to temperature, light independence as well as it have a very low decay (4.768 % per year). The overall uncertainty for quartz rod dosimeters at 2σ (σ is standard deviation) was found to be 3.8436 %. The dosimetric parameters, e. g. dose response, effect of temperature during irradiation on response as well as pre- and post-irradiation stability at different storage conditions

  8. Center for Volcanic and Tectonic Studies: 1992--1993 annual report

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1994-12-31

    The annual report of the Center for Volcanic Studies (CVTS) contains a series of papers, reprints and a Master of Science thesis that review the progress made by the CVTS between October 1, 1992 and February 1, 1994. During this period CVTS staff focused on several topics that have direct relevance to volcanic hazards related to the proposed high-level nuclear waste repository at Yucca Mountain, Nevada. These topics include: (1) polygenetic/polycyclic volcanism in Crater Flat, Nevada; (2) the role of the mantle during crustal extension; (3) the detailed geology of Crater Flat, Nevada; (4) Pliocene volcanoes in the Reveille Range, south-central Nevada; (5) estimating the probability of disruption of the proposed repository by volcanic eruptions. This topic is being studied by Dr. C.H. Ho at UNLV. The report contains copies of these individual papers as they were presented in various conference proceedings.

  9. Center for Volcanic and Tectonic Studies: 1992--1993 annual report

    International Nuclear Information System (INIS)

    The annual report of the Center for Volcanic Studies (CVTS) contains a series of papers, reprints and a Master of Science thesis that review the progress made by the CVTS between October 1, 1992 and February 1, 1994. During this period CVTS staff focused on several topics that have direct relevance to volcanic hazards related to the proposed high-level nuclear waste repository at Yucca Mountain, Nevada. These topics include: (1) polygenetic/polycyclic volcanism in Crater Flat, Nevada; (2) the role of the mantle during crustal extension; (3) the detailed geology of Crater Flat, Nevada; (4) Pliocene volcanoes in the Reveille Range, south-central Nevada; (5) estimating the probability of disruption of the proposed repository by volcanic eruptions. This topic is being studied by Dr. C.H. Ho at UNLV. The report contains copies of these individual papers as they were presented in various conference proceedings

  10. Student-centered Role-based Case Study Model to Improve Learning in Decision Support Systems

    Directory of Open Access Journals (Sweden)

    Farrukh Nadeem

    2014-10-01

    Full Text Available One of the important learning objectives of our bachelor course on "Techniques in Decision Support Systems" is to develop understanding of core decision making process in real-life business situations. The conventional teaching methods are unable to explain complexities of real-life business. Although the classroom discussions can be effective to understand general factors, such as opportunity cost, return on investment, etc. affecting business decisions, the effects of factors like dynamic business environment, incomplete information, time pressure etc. can not be truly explained through such simple discussions. In this paper, we describe our experience of adopting student-centered, role-based, case study to deal with this situation. The interactive case-based study not only provided students with experiential learning, but also gave them liberty to test their thoughts. As a result, we observed improved students' learning as well as improved grades. In addition, this approach made classes more dynamic and interesting.

  11. Final report. Conceptual studies nuclear energy center Lake Hartwell, S.C., Phase III

    International Nuclear Information System (INIS)

    This document summarizes a conceptual study on the feasibility and practicality of developing a nuclear energy center (NEC) at a specific site in the SSEB region. The site selected for this conceptual study is at Lake Hartwell, South Carolina. The conceptual NEC at Lake Hartwell consists of twelve nuclear electric generating units, arranged on the site in four clusters of three units each, known as triads. The nominal distance between triads was selected as 2-1/2 miles. Each unit was assumed to be a 1250 MW(e). The total electric output of 15,000 MWe would be transmitted to five major utilities in South Carolina, North Carolina, and Georgia. The basic finding was that the concept of a NEC on the Lake Hartwell site is feasible, but further analysis of institutional issues and possible legislation would be required

  12. Fertility studies in female childhood cancer survivors: selecting appropriate comparison groups

    NARCIS (Netherlands)

    Berg, M. van den; Dulmen-den Broeder, E. van; Overbeek, A.; Ronckers, C.; Dorp, W. van; Kremer, L.; Heuvel-Eibrink, M. van den; Huizinga, G.; Loonen, J.J.; Versluys, A.; Bresters, D.; Lambalk, C.; Kaspers, G.; Leeuwen, F.N. van

    2014-01-01

    Little information is available on the use of appropriate comparison groups for studies investigating late effects of childhood cancer. Two comparison groups in a nationwide study on reproductive function and ovarian reserve in female childhood cancer survivors were recruited (The Dutch Childhood On

  13. Fertility studies in female childhood cancer survivors : selecting appropriate comparison groups

    NARCIS (Netherlands)

    van den Berg, M. H.; van Dulmen-den Broeder, E.; Overbeek, A.; Ronckers, C. M.; van Dorp, W.; Kremer, L. C.; van den Heuvel-Eibrink, M. M.; Huizinga, G. A.; Loonen, J. J.; Versluys, A. B.; Bresters, D.; Lambalk, C. B.; Kaspers, G. J. L.; van Leeuwen, F. E.

    2014-01-01

    Little information is available on the use of appropriate comparison groups for studies investigating late effects of childhood cancer. Two comparison groups in a nationwide study on reproductive function and ovarian reserve in female childhood cancer survivors were recruited (The Dutch Childhood On

  14. Community outreach and engagement strategies from the Wisconsin Study Center of the National Children's Study.

    Science.gov (United States)

    Riesch, Susan K; Ngui, Emmanuel M; Ehlert, Carey; Miller, M Katie; Cronk, Christine A; Leuthner, Steven; Strehlow, Mary; Hewitt, Jeanne B; Durkin, Maureen S

    2013-05-01

    The purpose of this methods article was to describe and evaluate outreach and engagement strategies designed to initially build county-wide awareness and support for the National Children's Study (NCS or the study) and subsequently to target the segment communities where recruitment for the study occurred. Selected principles from community outreach, social marketing, and health care system and personal referral formed the foundation for the strategies. The strategies included a celebration event, community advisory board, community needs assessment, building relationships with health care providers and systems, eliciting a network of study supporters, newsletters, appearances at local young family-oriented events (health fairs, parades), presentations to local community leaders, community forums, "branding" with assistance from a women-owned local marketing firm, and mailings including an oversized, second-touch postcard. Six months after study launch, approximately 4,600 study-eligible women were asked in a door-to-door survey if and how they became aware of the study. On average, 40% of eligible women reported being aware of the study. The most frequently cited strategy to cultivate their awareness was study-specific mailings. Awareness of the NCS increased by 7.5% among those receiving a second-touch postcard relative to controls (95% CIs [4.9, 10.7] z = 5.347, p < 0.0000, d = 0.16). Community outreach and engagement strategies, in particular the oversized postcard as a second-touch effort, may be used effectively by researchers for participant recruitment and by public health nurses for delivery of important population-focused messages. PMID:23586770

  15. Epidemiological, Clinical and Paraclinical Study of Hydatid Cysts in Three Educational Medical Centers in 10 Years

    Directory of Open Access Journals (Sweden)

    Simindokht Shoaee

    2016-01-01

    Full Text Available Background: Echinococcosis or hydatidosis, caused by the larval stage of Echinococcus granulosus (E. granulosus, is an important public health problem in many areas of the world  and  Iran is a country of endemic situation for hydatidosis In the present study, we evaluated epidemiological, complications and clinical characteristics of hydatidosis at three University Medical Centers in Tehran over a 10-year period.Materials and Methods: This is a descriptive cross-sectional study performed in patients with hydatid cysts. Information about age, gender, number of cysts, organ involvement, morbidity and mortality and relapse were collected from medical records of hydatid patients. Paraclinic information such as CT Scan, MRI, ultrasound, complete blood count, pathological diagnosis and complication of disease were collected.Results: Overall, 81 patients, 35 (43.2% male and 46 (56.8% female, who were diagnosed as having hydatid cyst by clinical and radiological findings, with pathologic documentation were studied in three university medical center registries over a 10-year period (2003- 2012 in Tehran. Fourteen patients (17% of cases had complications resulting from this disease. Patients' age ranged from 5 to 86 years, and the peak prevalence of the disease was between 20 and 40 (34% of cases.Conclusion: Iran  is a country of endemic situation for hydatidosis. Prevalence rate of hydatidosis in Iran was reported to be 0.61-2 in 100000 populations. The highest  rate of infection and complications were in patients of 20-40 years age. Clinical examination revealed that abdominal pain was the most common complaint and was present in 51.7% of the cases. Other most common complain were cough, abdominal mass, dyspnea, icterus, chest pain, dyspepsia, back pain and seizure; and it was result of occupying effect of cysts in organs. This is similar with previous studies in Iran

  16. The proton therapy nozzles at Samsung Medical Center: A Monte Carlo simulation study using TOPAS

    Science.gov (United States)

    Chung, Kwangzoo; Kim, Jinsung; Kim, Dae-Hyun; Ahn, Sunghwan; Han, Youngyih

    2015-07-01

    To expedite the commissioning process of the proton therapy system at Samsung Medical Center (SMC), we have developed a Monte Carlo simulation model of the proton therapy nozzles by using TOol for PArticle Simulation (TOPAS). At SMC proton therapy center, we have two gantry rooms with different types of nozzles: a multi-purpose nozzle and a dedicated scanning nozzle. Each nozzle has been modeled in detail following the geometry information provided by the manufacturer, Sumitomo Heavy Industries, Ltd. For this purpose, the novel features of TOPAS, such as the time feature or the ridge filter class, have been used, and the appropriate physics models for proton nozzle simulation have been defined. Dosimetric properties, like percent depth dose curve, spreadout Bragg peak (SOBP), and beam spot size, have been simulated and verified against measured beam data. Beyond the Monte Carlo nozzle modeling, we have developed an interface between TOPAS and the treatment planning system (TPS), RayStation. An exported radiotherapy (RT) plan from the TPS is interpreted by using an interface and is then translated into the TOPAS input text. The developed Monte Carlo nozzle model can be used to estimate the non-beam performance, such as the neutron background, of the nozzles. Furthermore, the nozzle model can be used to study the mechanical optimization of the design of the nozzle.

  17. Studies on off-center Cu+ ions dipoles in potassium halides

    International Nuclear Information System (INIS)

    The results obtained by ionic thermal-currents technique (ITC) to verify the electric dipole properties due to Cu+ ions in off-center position in KCL crystals are reported. This was developed to study the CU+ ion behavior in KBr and KI crystals. The ITC band observed in these crystals gave maxima at 62,70 and 830K, and the activation energies were 0.177,0.196 and 0.232 eV in KCL,KBr and KI, respectively. From the integration of the ITC bands and the concentration of Cu+ obtained by optical absorption, the dipole moment is determined, giving values of 1.5, 1.9 and 2.6 eA in KCL,KBr and KI, respectively. Due to the shape of the ITC band, it is concluded that the dipole reorientation follows the classical model with a single relaxation time, and that the Cu freezes in off-center position below those temperatures where maximum at the ITC band occurs

  18. A comparative study to analyze the cost of curative care at primary health center in Ahmedabad

    Directory of Open Access Journals (Sweden)

    Mathur Neeta

    2010-01-01

    Full Text Available Objectives: To determine the unit cost of curative care provided at Primary Health Centers (PHCs and to examine the variation in unit cost in different PHCs. Materials and Methods: The present study was carried out in three PHCs of Ahmedabad district namely Sanathal, Nandej, and Uperdal, between 1 April, 2006 and 31 March, 2007. For estimating the cost of a health program, information on all the physical and human resources that were basic inputs to the PHC services were collected and grouped into two categories, non-recurrent (capital resources vehicles, buildings, etc. and recurrent resources (salaries, drugs, vaccines, contraceptives, maintenance, etc.. To generate the required data, two types of schedules were developed, daily time schedule and PHC/SC (Subcenter information schedule. Results: The unit cost of curative care was lowest (Rs. 29.43 for the Sanathal PHC and highest (Rs. 88.26 for the Uperdal PHC, followed by the Nandej PHC with Rs. 40.88, implying severe underutilization of curative care at the Uperdal PHC. Conclusions: Location of health facilities is a problem at many places. As relocation is not possible or even feasible, strengthening of infrastructure and facilities at these centers can be taken up immediately.

  19. Factors associated with drug abuse relapse: A study on the clients of rehabilitation centers

    Directory of Open Access Journals (Sweden)

    Samir Bhandari

    2015-10-01

    Full Text Available Background and Objectives: Drug addiction is a chronic relapsing behavioral disorder characterized by compulsive substance seeking and use, despite of harmful consequences. Any substance that affects our nervous through intoxication produced by it’s repeated of chronic use which changes our mood, perception and sensation. The main purpose of this study was to explore the factors associated with drugs relapse. Methods: The research was carried out among 114 using semi structured questionnaires on the basis of primary data collection in rehabilitation centers of Lalitpur and Chitwan districts through the census technique for the drug user enrolled in the rehabilitation centers for the treatment. Results: Most of the respondents (94.7 percent were relapsed in drugs after abstinence. The average number of times relapse in drugs is 3.29 times per person According to the respondents the main causes for the drugs relapse were peer pressure and the family relations. The age of the respondents is associated with the drugs relapse (P<0.029. Educational level of the respondents is associated with the drug relapse (P<0.004. Conclusions: Medium and higher economic background, type of family, job holder, lower education level have more chance to be relapsed. Relapsed can be prevented by providing support, care, positive attitude and rehabilitation for the behavioral treatment of the drug users.

  20. 5-year Mortality in Hemodialysis Patients: A Single Center Study in Tripoli

    Directory of Open Access Journals (Sweden)

    Buargub Mahdia

    2008-01-01

    Full Text Available To investigate the 5-year mortality of patients undergoing maintenance hemo-dialysis (HD at Al-Shat center Tripoli, we reviewed during June 2007 the records of all the HD patients initiated on HD from Jun 2000 and Jan 2002.There were 124 patients in the study, 77 males (63.6% and 47 (36.4% females, with a mean age of 49 ± 14 years. Diabetic nephropathy (DN was the underlying kidney disease in 34 (27.4% patients. After 5 years; 3 patients were transferred to other centers, 18 (14.9% patients underwent kidney transplan-tation. Out of the 103 patients who continued on hemodialysis, 53 (51.4% expired during the 5-year follow-up. Mortality was associated with older age (p< 0.001 and odd ratio (OR of 4.2 for age > 50 years and DN (p< 0.002 and OR of 3.9. Mortality rate in diabetics was 74.1% and significantly associated with male sex (p< 0.0067 and OR of 2.4, older age (p< 0.004, presence of hypertension (p< 0.003 and OR of 3.9, type 1 diabetes (OR 1.6, and elevated mean body weight (p< 0.046. Mortality was also relatively higher in black patients (OR of 2.0 and smokers (OR of 1.39. In conclusion, the overall 5- year mortality for dialysis patients was elevated and higher in the diabetics.

  1. Identifying elements of patient-centered care in underserved populations: a qualitative study of patient perspectives.

    Directory of Open Access Journals (Sweden)

    Sheela Raja

    Full Text Available Patient-centered care is an important goal in the delivery of healthcare. However, many patients do not engage in preventive medical care. In this pilot study, we conducted twenty in depth, semi-structured qualitative interviews at the University of Illinois at Chicago Health Sciences campus in a four month time frame. Many patients were underserved and underinsured, and we wanted to understand their experiences in the healthcare system. Using content analysis, several themes emerged from the interview data. Participants discussed the need for empathy and rapport with their providers. They identified provider behaviors that fostered a positive clinical relationship, including step-by step explanations of procedures, attention to body language and clinic atmosphere, and appropriate time management. Participants identified cost as the most common barrier to engaging in preventive care and discussed children and social support as motivating factors. A long-term relationship with a provider was an important motivator for preventive care, suggesting that the therapeutic alliance was essential to many patients. Conversely, many participants discussed a sense of dehumanization in the healthcare system, reporting that their life circumstances were overlooked, or that they were judged based on insurance status or ethnicity. We discuss implications for provider training and healthcare delivery, including the importance of patient-centered medical homes.

  2. Lionfish string experiences of an inland poison center: a retrospective study of 23 cases.

    Science.gov (United States)

    Trestrail, J H; al-Mahasneh, Q M

    1989-04-01

    From January 1979 through March 1988, our regional poison center, located many hundreds of miles from the nearest coastal salt water, documented 23 cases of envenomation by "Lionfish" (members of genus Pterois). All cases involved specimens which were maintained in the homes of amateur aquarists. A study of patient epidemiology showed the following: patient's sex 91.3% male, 8.7% female; patients ages ranged from 17 to 50 years with an average age for males of 29.8 years and 35 years for females; the site of the envenomation accident was always in the home; the only part of the body envenomated was the hand or finger; and all of the patients were symptomatic. Symptoms noted included sharp pain, swelling, redness, bleeding, nausea, numbness, joint pain, anxiety, headache, disorientation, and dizziness. One patient had a complication of cellulitis. Treatment provided included immersion of the effected area in hot water at 40 C for 60 to 90 min, analgesics, tetanus toxoid, and antibiotics. There were no deaths noted and treatment proved effective in all cases. This paper also discusses the natural history, clinical effects, and current treatment for envenomations from these beautiful but dangerous venomous fish, which can cause poisoning exposures that are likely to be encountered by poison centers anywhere in the world. PMID:2929130

  3. STUDY ON THE MECHANISM OF 1-OCTENE ZIEGLER-NATTA POLYMERIZATION BASED ON THE NUMBER OF ACTIVE CENTERS

    Institute of Scientific and Technical Information of China (English)

    FAN Zhiqiang; FENG Linxian; YANG Shilin

    1991-01-01

    The number of active centers (Cp )-t and kp-t profiles of Solvay type TiCl3 - AlR3 (R= C2H5, i - C4H9 )or Stauffer AA TiCl3-Al (C2H5)3 catalyzed 1-octene polymerization were determined by using an acetyl chloride quenching method as well as kinetic data. The results show that in the studied systems kp decreases when Cp increases, indicating the presence of two or more types of different active centers. The Cp-t plots of the Solvay TiCl3- AlR3 systems show the presence of both stable active centers and unstable centers which decay in the polymerization process. The phenomena are explained based on a model of active center plurality. The increases of Cp in the induction periods are also discussed.

  4. Comparison of an SMS text messaging and phone reminder to improve attendance at a health promotion center: A randomized controlled trial*

    Science.gov (United States)

    Chen, Zhou-wen; Fang, Li-zheng; Chen, Li-ying; Dai, Hong-lei

    2008-01-01

    Objective: To compare the efficacy of a short messaging service (SMS) text messaging and phone reminder to improve attendance rates at a health promotion center. Methods: A total of 1 859 participants who had scheduled appointments in the health promotion center of our hospital from April 2007 to May 2007 were enrolled in the study and randomly assigned into 3 groups: control (no reminder) group, SMS text messaging reminder group and telephone reminder group. Attendance rates and costs of interventions were collected. Results: A total of 1848 participants were eligible for analysis. Attendance rates of control, SMS and telephone groups were 80.5%, 87.5% and 88.3%, respectively. The attendance rates were significantly higher in SMS and telephone groups than that in the control group, with odds ratio 1.698, 95% confidence interval 1.224 to 2.316, P=0.001 in the SMS group, and odds ratio 1.829, 95% confidence interval 1.333 to 2.509, PSMS group and the telephone group (P=0.670). The cost effectiveness analysis showed that the cost per attendance for the SMS group (0.31 Yuan) was significantly lower than that for the telephone group (0.48 Yuan). Conclusion: SMS and telephone are effective reminders for improving attendance rate at a health promotion center. SMS reminder may be more cost-effective compared with the telephone reminder. PMID:18196610

  5. A study of the Gaussian overlap approach in the two-center shell model

    International Nuclear Information System (INIS)

    The Gaussian overlap approach (GOA) to the generator coordinate method (GCM) is carried through up to fourth order in the derivatives. By diagonalizing the norm overlap, a collective Schroedinger equation is obtained. The potential therein contains the usual potential energy surface (PES) plus correction terms, which subtract the zero-point energies (ZPE) is the PES. The formalism is applied to BCS states obtained from a two-center shell model (TCSM). To understand the crucial role of the pairing contributions in the GOA a schematic picture, the multi-level model, is constructed. An explicit numerical study of the convergence of the GOA is given for the TCSM, with the result that the GOA seems to be justified for medium and heavy nuclei but critical for light nuclei. (Auth.)

  6. Pilot Study: Measuring the Effects of Center of Gravity Shift on Postural Stability

    Science.gov (United States)

    Times-Marshall, Chelsea; Reschke, Millard

    2009-01-01

    It has been shown that astronauts returning from space often experience postural instability due to the stimulus rearrangement of the visual, vestibular, and proprioceptive systems. However, postural control may also be influenced by the head-ward shift in their center of gravity (CG) that occurs as a result of the expansion of their spinal column by as much as two inches during long duration space flight, as well as the CG shift that occurs from the Life Support Pack on the extra-vehicular activity (EVA) suit. This study investigated the effect on postural stability after (1) an immediate shift in the CG towards the head, (2) a 30 minute adaptation to the shifted CG, and (3) immediate shift of the CG back to normal, accomplished by donning and removing a modified backpack. We hypothesized that at each immediate shift in CG, postural performance will be compromised.

  7. Scientific Visualization to Study Flux Transfer Events at the Community Coordinated Modeling Center

    Science.gov (United States)

    Rastatter, Lutz; Kuznetsova, Maria M.; Sibeck, David G.; Berrios, David H.

    2011-01-01

    In this paper we present results of modeling of reconnection at the dayside magnetopause with subsequent development of flux transfer event signatures. The tools used include new methods that have been added to the suite of visualization methods that are used at the Community Coordinated Modeling Center (CCMC). Flux transfer events result from localized reconnection that connect magnetosheath magnetic field and plasma with magnetospheric fields and plasma and results in flux rope structures that span the dayside magnetopause. The onset of flux rope formation and the three-dimensional structure of flux ropes are studied as they have been modeled by high-resolution magnetohydrodynamic simulations of the dayside magnetosphere of the Earth. We show that flux transfer events are complex three-dimensional structures that require modern visualization and analysis techniques. Two suites of visualization methods are presented and we demonstrate the usefulness of those methods through the CCMC web site to the general science user.

  8. AVTA Federal Fleet PEV Readiness Data Logging and Characterization Study for NASA Stennis Space Center

    Energy Technology Data Exchange (ETDEWEB)

    Schey, Stephen [Idaho National Lab. (INL), Idaho Falls, ID (United States); Francfort, Jim [Idaho National Lab. (INL), Idaho Falls, ID (United States)

    2015-05-01

    Federal agencies are mandated to purchase alternative fuel vehicles, increase consumption of alternative fuels, and reduce petroleum consumption. Available plug-in electric vehicles (PEVs) provide an attractive option in the selection of alternative fuel vehicles. PEVs, which consist of both battery electric vehicles (BEVs) and plug-in hybrid electric vehicles (PHEVs), have significant advantages over internal combustion engine (ICE) vehicles in terms of energy efficiency, reduced petroleum consumption, and reduced production of greenhouse gas (GHG) emissions, and they provide performance benefits with quieter, smoother operation. This study intended to evaluate the extent to which NASA Stennis Space Center (Stennis) could convert part or all of their fleet of vehicles from petroleum-fueled vehicles to PEVs.

  9. Production of beams from solid materials at Center for Nuclear Study electron cyclotron resonance ion source

    Science.gov (United States)

    Ohshiro, Y.; Yamaka, S.; Watanabe, S.; Kobayashi, K.; Kotaka, Y.; Nishimura, M.; Kase, M.; Muto, H.; Yamaguchi, H.; Shimoura, S.

    2014-02-01

    Two methods for the feed of vapor from solid materials in the Center for Nuclear Study ECR ion source are described. A rod placed near the wall of the plasma chamber, operating up to a melting point of 2600 °C, has been used for CaO, SiO2, and FeO. An oven with a number of openings, operating up to 800 °C, has been used for P2O5, Li, and S. Typical ion beam intensities of 7Li2+, 6Li3+, 40Ca12+, and 56Fe15+ are achieved 280, 75, 28, and 7 eμA, respectively. High intensity heavy ion beams are stably supplied into the azimuthally varying field cyclotron.

  10. Determination Anxiety Level of the Youngsters Studying in Denizli Apprenticeship Training Center

    Directory of Open Access Journals (Sweden)

    Ozgur Metin

    2008-04-01

    Full Text Available AIM/BACKGROUND: This study was carried out as a definitive work in order to determine the anxiety level and self-respect of the students studying in Denizli Apprenticeship Training Center. METHODS: The study population was composed of 1276 individuals registered at Denizli Apprenticeship Training Center. The size of the sample was established to be as 235 individuals considering the formula used in the conditions where the study population was determined but 231 individuals were contacted. Those recruited in the study were chosen with the stratified randomized sampling method. The data were obtained during February-March 2005 in the class via the questionnaire formed by the researcher, the State-Continuous Anxiety Inventory and Coopersmith Self-respect Scale. For the evaluation of the data mean, standard deviation, percentage and quantity estimations, Kruskal-Wallis test, t-test, Mann-Whitney Test and one way ANOVA tests were employed. RESULTS: The mean age of the youngsters recruited in the study was 17.06 1.45. 75.3% of the subjects were male, 33.8% had 4 or more siblings, 79.7% were graduated from middle school and 76.7% were living with their families. Another working individual was present in 87.9% of the subjects. 16.5% of the subjects pointed out that they their master did not provided them assistance for a job they held for the first time whereas 35.5% of the subjects stated that they experienced difficulties in case when they needed license of absence. 40.3% of the students enunciated that they were obliged to do work that strain their power, and 29.9% stated that they were not appreciated. The difference between the sex of the subjects, the education status of their fathers and the anxiety level of the youngsters was found to be significant (p0.05. CONCLUSION: The anxiety level of the females involved in the study and the youngsters whose fathers’ education level was middle school or higher was detected to be greater. [TAF Prev Med

  11. Experimental comparison studies with the VENUS-II disassembly code

    International Nuclear Information System (INIS)

    The Kiwi-TNT, SNAPTRAN-2 and SNAPTRAN-3 reactor disassembly experiments have been analyzed using the VENUS-II disassembly code. Modifications to the basic VENUS-II model required for the analysis of these tests are discussed. Key results from the analyses are compared to the experimental data and conclusions are drawn concerning the experimental validation of VENUS-II afforded by these comparisons

  12. Comparison between electron and neutron Compton scattering studies

    OpenAIRE

    Moreh Raymond; Finkelstein Yacov; Vos Maarten

    2015-01-01

    We compare two techniques: Electron Compton Scattering (ECS) and neutron Compton scattering (NCS) and show that using certain incident energies, both can measure the atomic kinetic energy of atoms in molecules and solids. The information obtained is related to the Doppler broadening of nuclear levels and is very useful for deducing the widths of excited levels in many nuclei in self absorption measurements. A comparison between the atomic kinetic energies measured by the two methods on the sa...

  13. Clinical features of Crohn disease concomitant with ankylosing spondylitis: A preliminary single-center study.

    Science.gov (United States)

    Liu, Song; Ding, Jie; Wang, Meng; Zhou, Wanqing; Feng, Min; Guan, Wenxian

    2016-07-01

    Extraintestinal manifestations (EIMs) cause increased morbidity and decreased quality of life in Crohn disease (CD). Ankylosing spondylitis (AS) belongs to EIMs. Very little is known on the clinical features of CD concomitant with AS. This study is to investigate the clinical features of CD patients with AS.We retrospectively collected all CD patients with AS in our hospital, and established a comparison group (CD without AS) with age, sex, and duration of Crohn disease matched. Clinical information was retrieved for comparison.Eight CD + AS patients were identified from 195 CD patients. Sixteen CD patients were randomly selected into comparison group. All CD + AS patients were male, HLA-B27 (+), and rheumatoid factor (-) with an average age of 40.8 ± 4.52 years. Significant correlation between disease activity of CD and AS was revealed (r = 0.857, P = 0.011). Significant correlation between disease activity of CD and functional limitation associated with AS was identified (r = 0.881, P < 0.01). C-reactive protein (CRP), erythrocyte sedimentation rate (ESR), and globulin were positively correlated to Crohn disease activity index (CDAI), Bath AS disease activity index, and Bath AS functional index(BASFI) scores (r = 0.73-0.93, P < 0.05). Albumin was negatively associated with CDAI and BASFI (r = -0.73 to -0.91, P < 0.05). The ratio of albumin to globulin (Alb/Glo) was significantly related to all 3 scores (r = -0.81 to -0.91, P < 0.05).Male predominance with a 4.12% concomitant incidence of AS is observed in CD patients. Disease activity of CD correlates with disease activity of AS and functional limitation caused by AS. CRP, ESR, and Alb/Glo may serve as biomarkers for disease activity and functional limitation in CD patients concomitant with AS, although future studies are expected. PMID:27428240

  14. Design and Implementation Content Validity Study: Development of an instrument for measuring Patient-Centered Communication

    Directory of Open Access Journals (Sweden)

    Vahid Zamanzadeh

    2015-06-01

    Full Text Available ABSTRACT Introduction: The importance of content validity in the instrument psychometric and its relevance with reliability, have made it an essential step in the instrument development. This article attempts to give an overview of the content validity process and to explain the complexity of this process by introducing an example. Methods: We carried out a methodological study conducted to examine the content validity of the patient-centered communication instrument through a two-step process (development and judgment. At the first step, domain determination, sampling (item generation and instrument formation and at the second step, content validity ratio, content validity index and modified kappa statistic was performed. Suggestions of expert panel and item impact scores are used to examine the instrument face validity. Results: From a set of 188 items, content validity process identified seven dimensions includes trust building (eight items, informational support (seven items, emotional support (five items, problem solving (seven items, patient activation (10 items, intimacy/friendship (six items and spirituality strengthening (14 items. Content validity study revealed that this instrument enjoys an appropriate level of content validity. The overall content validity index of the instrument using universal agreement approach was low; however, it can be advocated with respect to the high number of content experts that makes consensus difficult and high value of the S-CVI with the average approach, which was equal to 0.93. Conclusion: This article illustrates acceptable quantities indices for content validity a new instrument and outlines them during design and psychometrics of patient-centered communication measuring instrument.

  15. Therapy response evaluation of malignant lymphoma in a multicenter study. Comparison of manual and semiautomatic measurements in CT

    Energy Technology Data Exchange (ETDEWEB)

    Wessling, J.; Schuelke, C. [Muenster Univ. (Germany). Dept. of Clinical Radiology; Koch, R. [Muenster Univ. (Germany). Dept. of Medical Informatics and Biomathematics; and others

    2014-08-15

    Purpose: Comparison of manual one-/bi-dimensional measurements versus semi-automatically derived one-/bi-dimensional and volumetric measurements for therapy response evaluation of malignant lymphoma during CT follow-up examinations in a multicenter setting. Materials and Methods: MSCT data sets of patients with malignant lymphoma were evaluated before (baseline) and after two cycles of chemotherapy (follow-up) at radiological centers of five university hospitals. The long axis diameter (LAD), the short axis diameter (SAD) and the bi-dimensional WHO of 307 target lymph nodes were measured manually and semi-automatically using dedicated software. Lymph node volumetry was performed semi-automatically only. The therapeutic response was evaluated according to lymphoma-adapted RECIST. Results: Based on a single lymph node, semi-automatically derived multidimensional parameters allowed for significantly more accurate therapy response classification than the manual or the semi-automatic unidimensional parameters. Incorrect classifications were reduced by up to 9.6%. Compared to the manual approach, the influence of the study center on correct therapy classification is significantly less relevant when using semi-automatic measurements. Conclusion: Semi-automatic volumetry and bi-dimensional WHO significantly reduce the number of incorrectly classified lymphoma patients by approximately 9.6% in the multicenter setting in comparison to linear parameters. Semi-automatic quantitative software tools may help to significantly reduce wrong classifications that are associated with the manual assessment approach. (orig.)

  16. Therapy response evaluation of malignant lymphoma in a multicenter study. Comparison of manual and semiautomatic measurements in CT

    International Nuclear Information System (INIS)

    Purpose: Comparison of manual one-/bi-dimensional measurements versus semi-automatically derived one-/bi-dimensional and volumetric measurements for therapy response evaluation of malignant lymphoma during CT follow-up examinations in a multicenter setting. Materials and Methods: MSCT data sets of patients with malignant lymphoma were evaluated before (baseline) and after two cycles of chemotherapy (follow-up) at radiological centers of five university hospitals. The long axis diameter (LAD), the short axis diameter (SAD) and the bi-dimensional WHO of 307 target lymph nodes were measured manually and semi-automatically using dedicated software. Lymph node volumetry was performed semi-automatically only. The therapeutic response was evaluated according to lymphoma-adapted RECIST. Results: Based on a single lymph node, semi-automatically derived multidimensional parameters allowed for significantly more accurate therapy response classification than the manual or the semi-automatic unidimensional parameters. Incorrect classifications were reduced by up to 9.6%. Compared to the manual approach, the influence of the study center on correct therapy classification is significantly less relevant when using semi-automatic measurements. Conclusion: Semi-automatic volumetry and bi-dimensional WHO significantly reduce the number of incorrectly classified lymphoma patients by approximately 9.6% in the multicenter setting in comparison to linear parameters. Semi-automatic quantitative software tools may help to significantly reduce wrong classifications that are associated with the manual assessment approach. (orig.)

  17. 76 FR 21383 - Proposed Collection; Comment Request; Food Reporting Comparison Study (FORCS) and Food and Eating...

    Science.gov (United States)

    2011-04-15

    ... HUMAN SERVICES National Institutes of Health Proposed Collection; Comment Request; Food Reporting Comparison Study (FORCS) and Food and Eating Assessment Study (FEAST) (NCI) SUMMARY: In compliance with the... on proposed data collection projects, the National Cancer Institute (NCI), National Institutes...

  18. The QUASAR reproducibility study, Part II: Results from a multi-center Arterial Spin Labeling test-retest study

    DEFF Research Database (Denmark)

    Petersen, Esben Thade; Mouridsen, Kim; Golay, Xavier;

    2010-01-01

    metabolism. So far, ASL has been restricted mostly to specialist centers due to a generally low SNR of the method and potential issues with user-dependent analysis needed to obtain quantitative measurement of cerebral blood flow (CBF). Here, we evaluated a particular implementation of ASL (called......Arterial Spin Labeling (ASL) is a method to measure perfusion using magnetically labeled blood water as an endogenous tracer. Being fully non-invasive, this technique is attractive for longitudinal studies of cerebral blood flow in healthy and diseased individuals, or as a surrogate marker of...... Quantitative STAR labeling of Arterial Regions or QUASAR), a method providing user independent quantification of CBF in a large test-retest study across sites from around the world, dubbed "The QUASAR reproducibility study". Altogether, 28 sites located in Asia, Europe and North America participated and a...

  19. Comparison of Center of Force Trajectory during Sit-to-stand Movements Performed by Elderly and Old-old Elderly Subjects

    OpenAIRE

    Kim, Min-Hee; Yoo, Won-gyu

    2014-01-01

    [Purpose] This study compared the center of force (COF) trajectory during sit-to-stand (STS) movements performed by elderly and old-old elderly subjects. [Subjects] We recruited 9 elderly and 10 old-old elderly subjects with no knee joint pain or lower limb orthopedic problems. [Methods] The CONFORMat system was used to measure the length of the COF trajectory as the subjects performed the STS task. [Results] The total length of the COF trajectory during the STS movement was significantly gre...

  20. A single center study of the effects of trained fathers' participation in constant breastfeeding.

    Directory of Open Access Journals (Sweden)

    Khadijeh Raeisi

    2014-09-01

    Full Text Available Constant breastfeeding that depends on the family support. Fathers' involvement is as an important factor of successful breastfeeding. The aim of this study was to evaluate the influence of fathers' participation in constant breastfeeding in Vali-E-Asr Hospital, Tehran, Iran. This interventional study was piloted on spouses of pregnant women participating in pregnancy courses. The case group consisted of fathers attending training courses of breastfeeding during pregnancy (Group A, and the control group was made up of fathers who did not take part in training courses (Group B. The courses were held three times from the 30th week of gestation to the end of pregnancy in a family health research center. Fathers attended three training sessions where they were trained by brochures. After delivery newborns were weighted and examined for jaundice (3-5 days, 30 days, three and six months after birth. According to mothers' views, spouses' participation, encouragement and support in group A, was 11 times more than group B. It means that 47 (94% of spouses in the group A participated in mothers' constant breastfeeding, but fathers' participation in group B was 60% (30 spouses. This study showed that breastfeeding was more constant in the group that fathers participated in breastfeeding training course. One of the reasons for such a significant difference was spouses' participation, encouragement and support in the trained group. This study showed that fathers' involvement in training programs may influence constancy of breastfeeding.

  1. China Patient-centered Evaluative Assessment of Cardiac Events Prospective Study of Acute Myocardial Infarction:Study Design

    Institute of Scientific and Technical Information of China (English)

    Jing Li; Rachel P Dreyer; Xi Li; Xue Du; Nicholas S Downing; Li Li; Hai-Bo Zhang

    2016-01-01

    Background: Despite the rapid growth in the incidence of acute myocardial infarction (AMI) in China, there is limited information about patients' experiences after AMI hospitalization, especially on long-term adverse events and patient-reported outcomes (PROs).Methods: The China Patient-centered Evaluative Assessment of Cardiac Events (PEACE)-Prospective AMI Study will enroll 4000 consecutive AMI patients from 53 diverse hospitals across China and follow them longitudinally for 12 months to document their treatment, recovery, and outcomes.Details of patients' medical history, treatment, and in-hospital outcomes are abstracted from medical charts.Comprehensive baseline interviews are being conducted to characterize patient demographics, risk factors, presentation, and healthcare utilization.As part of these interviews, validated instruments are administered to measure PROs, including quality of life, symptoms, mood, cognition, and sexual activity.Follow-up interviews, measuring PROs, medication adherence, risk factor control, and collecting hospitalization events are conducted at 1, 6, and 12 months after discharge.Supporting documents for potential outcomes are collected for adjudication by clinicians at the National Coordinating Center.Blood and urine samples are also obtained at baseline, 1-and 12-month follow-up.In addition, we are conducting a survey of participating hospitals to characterize their organizational characteristics.Conclusion: The China PEACE-Prospective AMI study will be uniquely positioned to generate new information regarding patient's experiences and outcomes after AMI in China and serve as a foundation for quality improvement activities.

  2. Comparison of Pool/Loop Configurations in the JAEA feasibility study 1999-2006

    International Nuclear Information System (INIS)

    FR configuration comparison in the JAEA feasibility study (FS) from 1996 to 2006 has been summarized. A brief description of a FS pool concept and material mass comparison between FS pool and loop concepts have been provided. A shot review of pool designs has also been provided showing the FS pool concept has the most compact reactor vessel diameter. (author)

  3. New methods for solving a vertex p-center problem with uncertain demand-weighted distance: A real case study

    Directory of Open Access Journals (Sweden)

    Javad Nematian

    2015-04-01

    Full Text Available Vertex and p-center problems are two well-known types of the center problem. In this paper, a p-center problem with uncertain demand-weighted distance will be introduced in which the demands are considered as fuzzy random variables (FRVs and the objective of the problem is to minimize the maximum distance between a node and its nearest facility. Then, by introducing new methods, the proposed problem is converted to deterministic integer programming (IP problems where these methods will be obtained through the implementation of the possibility theory and fuzzy random chance-constrained programming (FRCCP. Finally, the proposed methods are applied for locating bicycle stations in the city of Tabriz in Iran as a real case study. The computational results of our study show that these methods can be implemented for the center problem with uncertain frameworks.

  4. Study of Admission Rate of Hepatitis B Surface Antigen Positive Patients in 50 Dentistry Centers in Tehran (Spring 2003

    Directory of Open Access Journals (Sweden)

    Seyed Moayed Alavian

    2008-02-01

    Full Text Available Background and Aims: Hepatitis B is one of the common diseases in the world and in Iran, caused by hepatitis B virus (HBV. This virus is transmitted by various ways including dentistry procedures and this may discourage dentists to admit hepatitis B surface antigen (HBsAg positive patients leading to hide the disease by the patients and increased transmission risk. Methods: During a cross-sectional descriptive study, 50 dentistry centers were chosen among dentistry centers of Tehran in various regions by cluster sampling. Two HBsAg positive medical students went to these centers and announced about their diseases and requested for dentistry. Samples (dentists and secretaries did not have any information about the research. They studied and examined reaction of dentists and their secretaries as well as admission rate.Results: Among 50 centers, 16 did not admit patients (5 cases by secretary and 11 cases by dentist and 16 centers admitted them as the last patient (last appointment and totally 32 cases met unfriendly. Among different regions of Tehran, the highest rate of non-admission was observed in the south (60% and the lowest rate in the north (P<0.01. Charity centers and private centers had the most and the least non-admission rate, respectively, and the difference was significant (P<0.01. There were 16 non-admission cases among general dentists but there was not any rejection in specialists.Conclusions: The higher rate of non-admission and unfriendly behavior in southern district of Tehran and military and charity centers may be related to the lack of awareness and proper communication between patient and dentist. It highlights the necessity of more educational workshop to promote dentists knowledge about HBV, encourage them to use disposable tools for the patients, more accurate supervision on centers by the ministry of health and finally to assume all patients as HBsAg positive.

  5. Management of groundwater in urban centers: A case study; Greater Dammam Metropolitan Area

    International Nuclear Information System (INIS)

    Effective management of groundwater resources in urban centers of arid regions is vital for sustainable development and groundwater protection especially with rapid growth of water demands under water stress conditions. Greater Dammam Metropolitan Area is a good example of rapid growing urban center due to comprehensive development and population growth. The water demand has increased by many times during the last three decades. Groundwater from local aquifers namely Dammam and Umm Er Radhuma, supplies more than 85% of the total water demands. The aquifers have been subjected to extensive and increasing groundwater pumping especially during last three decades. Negative impacts such as significant decline in water levels have been experienced in the area. A new groundwater management scheme in terms of improving the long-term water pumping policies is required for protection of the aquifers groundwater productivity. A special numerical simulation model of the multi-aquifer system including Dammam and Umm Er Radhuma aquifers has been developed to assess the behavior of the aquifer system under long term water stresses in Dammam Metropolitan Area. The developed numerical simulation model has been utilized to predict the responses of the aquifer system in terms of decline in terms of water level under different pumping schemes from the two aquifers during the next 30 years. The model results have postulated the importance of Umm Er Radhuma (UER) aquifer as a major water supply source to Dammam Metropolitan Area, as well as potential recharge source of more than 30% of the total water pumped from Dammam aquifer. These findings have been utilized in improving present and future groundwater management and conservation for the study area. Similar techniques can be used to improve the groundwater management in other parts of the country as well as other arid regions. (author)

  6. Retrospective study of oral lesions in the population attended at the Dental Specialty Center

    Directory of Open Access Journals (Sweden)

    Maurício Roth Volkweis

    2010-04-01

    Full Text Available Objectives: To identify the most prevalent stomatologic lesions in the population attended at the Dental Specialty Center of the Hospital “Nossa Senhora da Conceição”, quantify the distribution by sex and age group, verify the relationship of smoking as a predisposing factor to oral cancer, determine the number of consultations at the service for each patient until discharge and quantify the number of procedures performed. Methods: The sample consisted of 435 medical records of patients who sought the Stomatology Service of the Dental Specialty Center of the Hospital Nossa Senhora da Conceição. Of these, 249 were women and 186 were men. Therefore, a retrospective study was conducted from the analysis of the clinical records of all patients attended from October 2006 to March 2008. The variables were categorized and analyzed by Pearson’s Chi-square test. Results: Of the 435 patients, who sought the Stomatology service, 249 were women and 186 were men, and no statistically significant association of sex with any group of diseases was observed. The most prevalent diseases were stomatitis with 122 cases. Eighteen patients had malignant diseases (4%, 15 of them being diagnosed with squamous cell carcinoma. Of the total number of patients attended, 20.7% were referred to other professionals, 79.3% had their problems solved exclusively at the service, and in 173 cases (39.7% biopsies were performed. Conclusion: The most prevalent lesion group was stomatitis, being 28% of the total, and the predominant groups were women and the age group over 60 years. There was a statistically significant relationship between smoking and mouth cancer.

  7. Sonographic Findings of Benign Breast Diseases, A Study of 111 Cases in Iranian Center for Breast Cancer

    OpenAIRE

    Sedighi, N; A. A. Shadman Yazdi

    2005-01-01

    Introduction & Background: Benign lesions are very common in breast. The most important consideration for physicians is to differentiate benign processes from malignant ones .Hence the clinicians and radi-ologists both wish to differentiate them even before surgical procedures. The Iranian Center for Breast Cancer linked to Jahad Daneshgahi Center is a referral place for patients with breast complaints. Patients & Methods: Retrospective study of sonographic findings of 111 patients wi...

  8. Implications of task environment and corporate context on marketing measurement systems in shopping centers - a constructive case study

    OpenAIRE

    Lehtonen, Lotta

    2013-01-01

    Abstract Objectives of the study The objective of this thesis was to understand how marketing performance assessment can be organized in shopping centers. The purpose was to develop a recommendation of a marketing performance measurement system for the case company by identifying which marketing metrics were perceived relevant in the specific corporate context and how the marketing metrics fit the shopping center task environment. The empirical research also addressed perceived barrie...

  9. Comparison of continuous air monitor utilization: A case study

    Energy Technology Data Exchange (ETDEWEB)

    Rodgers, J.C.; Whicker, J.J.; Voss, J.T.

    1997-08-01

    The Chemical Metallurgy Research (CMR) building has been upgrading to different continuous air monitors (CAMs) over the past several years. During the transition, both the newer and older CAMs were positioned in the rooms for field testing and comparison. On December 19, 1996, an accidental release of plutonium aerosol occurred into a laboratory in the CMR building. The event occurred while the room was unoccupied, and no personnel were exposed from this incident. There were two fixed air samplers (FASs) and three CAMs operating in the room at the time the release occurred, including two of the recently installed Canberra Alpha Sentry CAMs and one older Eberline CAM. The apparent cause of the release was a procedure carried out in the basement involving the replacement of the HEPA filter in the ventilation exhaust of a slot-box in the laboratory. For a short period, the ventilation was disconnected from the slot-box in this room, but not from the chemical hood exhaust on the opposite side of the laboratory. Therefore, a condition was created where backflow could occur out of the slot-box and into the room. Eventually all three CAMs in the room alarmed, and the situation was successfully monitored and brought under control by health physics personnel. Data on CAM performance were logged, and Pu activity collected on CAM and FAS filters were measured. A comparison of the new and old continuous air monitoring programs was performed and many interesting lessons on CAM performance and CAM utilization were learned. Overall, this comparison showed the advantages of remote monitoring, timely spectral information, and concentration measurements resolved in time and space.

  10. Study of a conceptual nuclear energy center at Green River, Utah. Final summary report

    International Nuclear Information System (INIS)

    This document summarizes a conceptual study on the feasibility and practicality of developing a nuclear energy center (NEC) at a representative Western site. The site selected for this conceptual study, an area of about 50 square miles, is located 15 miles south of Green River, Utah. The conceptual NEC would consist of nine nuclear electric generating units, arranged on the site in three clusters of three reactors each (triads), separated by about 2 1/2 miles. Of the total electric output of 11,250 MWe that the NEC could produce, about 82% is assumed to be transmitted out of Utah to Colorado, New Mexico, Arizona, Nevada, and California. The technical engineering issues studied included geology and seismology, plant design, low-level radioactive waste disposal, transmission, and construction schedules and costs. Socioeconomic issues included were demographics, land use, community service needs, and fiscal impacts. Environmental considerations included terrestrial and aquatic ecology, visual impact, and secondary population impacts. Radiological issues were concerned with the safety and risks of an NEC and an on-site low-level waste facility. Institutional issues included methods of ownership, taxation, implications of energy export, and water allocation. The basic finding was that an NEC would be technically feasible, but a number of socioeconomic and institutional issues would require resolution before a Western regional NEC could be considered a viable power plant siting option

  11. Prevalence and Severity of Anemia in Pediatric Hemodialysis Patients; A Single Center Study

    Directory of Open Access Journals (Sweden)

    Alaleh Ghasari

    2007-04-01

    Full Text Available Objective: To determine the prevalence and severity of anemia in children and adolescents on chronic hemodialysis and to identify independent predictor for anemia in children on hemodialysis. Material & Methods: A cross sectional study was performed between September 2005 and January 2006. The study population consisted of 25 patients aged 7−20 years on chronic hemodialysis from pediatric hemodialysis centers in Isfahan, Iran. Findings: A total of 22 (82% patients had hemoglobin level of 200 pg/ml in 16 patients (66% and >400 pg/ml in 9 patients (37.5%. There was a reverse correlation between PTH level>200 pg/ml and hemoglobin level (r=-0.505, P=0.046. Conclusion: The prevalence of anemia in children on hemodialysis in Isfahan appears to be higher than that reported in the other studies in spite of extensive use of rHuEPO and iron supplementation. We found this to be especially true for patients new on hemodialysis (less than 6 months, low albumin and severe hyperparathyroidism.

  12. Photorejuvenation with intense pulsed light: results of a multi-center study.

    Science.gov (United States)

    Sadick, Neil S; Weiss, Robert; Kilmer, Suzanne; Bitter, Patrick

    2004-01-01

    This multi-center study evaluating the role of Intense Pulsed Light (IPL) in the non-ablative rejuvenation of Type I and Type II photoaged skin study was conducted in order to evaluate the clinical efficacy and safety of using IPL in treating clinical indications associated with photoaged skin. Ninety-three patients of Fitzpatrick skin phenotypes I-III, Fitzpatrick Wrinkle Classes I-II, and Elastosis Scores 1-6 were enrolled in the study. Up to five treatments were performed at 4-week intervals with follow-up visits at 4 and 6 months after the last treatment. Patients received full-face treatments using the recommended parameters of the Quantum SR/HR (Lumenis Ltd.) with the 560 or 640 nm cutoff filter. Parameters of elastometry, physicians' evaluation of the Elastosis Score ('W/ES'), and global improvement as well as patient satisfaction were analyzed. Results showed that the average Fitzpatrick W/ES improved significantly (pIPL treatment is an effective non-invasive, non-ablative method for rejuvenating photoaged skin with minimal adverse events, no downtime, excellent long-term results, and a very high measure of patient satisfaction. PMID:14964745

  13. Metabolic syndrome and discrepancy between actual and self-identified good weight: Aerobics Center Longitudinal Study.

    Science.gov (United States)

    Wirth, Michael D; Blake, Christine E; Hébert, James R; Sui, Xuemei; Blair, Steven N

    2015-03-01

    This study examined whether the discrepancy between measured and self-identified good weight (weight discrepancy) predicts metabolic syndrome (MetSyn). This study included 6,413 participants enrolled in the Aerobics Center Longitudinal Study (mean follow-up: 4.8±3.8 years). Weight discrepancy was defined as measured weight minus self-identified good weight. MetSyn was defined using standard definitions. Hazard ratios (HRs) and 95% confidence intervals (95% CIs) for incident MetSyn, by weight discrepancy category, were estimated using Cox proportional hazards regression. The multivariable-adjusted HR for MetSyn was 3.48 (95% CI=2.48-4.86) for those who maintained higher weight discrepancy over time compared to individuals with lower weight discrepancy. Additional adjustment for body mass index did not change this interpretation (HR=3.44; 95% CI=2.46-4.82). Weight discrepancy may be a useful screening characteristic and target for future interventions to further reduce the risk of chronic weight-related disorders, included MetSyn. PMID:25544742

  14. Structural studies of bacterioferritin B from Pseudomonas aeruginosa suggest a gating mechanism for iron uptake via the ferroxidase center .

    Science.gov (United States)

    Weeratunga, Saroja K; Lovell, Scott; Yao, Huili; Battaile, Kevin P; Fischer, Christopher J; Gee, Casey E; Rivera, Mario

    2010-02-16

    The structure of recombinant Pseudomonas aeruginosa bacterioferritin B (Pa BfrB) has been determined from crystals grown from protein devoid of core mineral iron (as-isolated) and from protein mineralized with approximately 600 iron atoms (mineralized). Structures were also obtained from crystals grown from mineralized BfrB after they had been soaked in an FeSO(4) solution (Fe soak) and in separate experiments after they had been soaked in an FeSO(4) solution followed by a soak in a crystallization solution (double soak). Although the structures consist of a typical bacterioferritin fold comprised of a nearly spherical 24-mer assembly that binds 12 heme molecules, comparison of microenvironments observed in the distinct structures provided interesting insights. The ferroxidase center in the as-isolated, mineralized, and double-soak structures is empty. The ferroxidase ligands (except His130) are poised to bind iron with minimal conformational changes. The His130 side chain, on the other hand, must rotate toward the ferroxidase center to coordinate iron. In comparison, the structure obtained from crystals soaked in an FeSO(4) solution displays a fully occupied ferroxidase center and iron bound to the internal, Fe((in)), and external, Fe((out)), surfaces of Pa BfrB. The conformation of His130 in this structure is rotated toward the ferroxidase center and coordinates an iron ion. The structures also revealed a pore on the surface of Pa BfrB that likely serves as a port of entry for Fe(2+) to the ferroxidase center. On its opposite end, the pore is capped by the side chain of His130 when it adopts its "gate-closed" conformation that enables coordination to a ferroxidase iron. A change to its "gate-open", noncoordinative conformation creates a path for the translocation of iron from the ferroxidase center to the interior cavity. These structural observations, together with findings obtained from iron incorporation measurements in solution, suggest that the ferroxidase

  15. Structural Studies of Bacterioferritin B from Pseudomonas aeruginosa Suggest a Gating Mechanism for Iron Uptake via the Ferroxidase Center

    Energy Technology Data Exchange (ETDEWEB)

    Weeratunga, Saroja K.; Lovell, Scott; Yao, Huili; Battaile, Kevin P.; Fischer, Christopher J.; Gee, Casey E.; Rivera, Mario (Kansas); (HWMRI)

    2010-03-16

    The structure of recombinant Pseudomonas aeruginosa bacterioferritin B (Pa BfrB) has been determined from crystals grown from protein devoid of core mineral iron (as-isolated) and from protein mineralized with {approx}600 iron atoms (mineralized). Structures were also obtained from crystals grown from mineralized BfrB after they had been soaked in an FeSO{sub 4} solution (Fe soak) and in separate experiments after they had been soaked in an FeSO{sub 4} solution followed by a soak in a crystallization solution (double soak). Although the structures consist of a typical bacterioferritin fold comprised of a nearly spherical 24-mer assembly that binds 12 heme molecules, comparison of microenvironments observed in the distinct structures provided interesting insights. The ferroxidase center in the as-isolated, mineralized, and double-soak structures is empty. The ferroxidase ligands (except His130) are poised to bind iron with minimal conformational changes. The His130 side chain, on the other hand, must rotate toward the ferroxidase center to coordinate iron. In comparison, the structure obtained from crystals soaked in an FeSO{sub 4} solution displays a fully occupied ferroxidase center and iron bound to the internal, Fe{sub (in)}, and external, Fe{sub (out)}, surfaces of Pa BfrB. The conformation of His130 in this structure is rotated toward the ferroxidase center and coordinates an iron ion. The structures also revealed a pore on the surface of Pa BfrB that likely serves as a port of entry for Fe{sup 2+} to the ferroxidase center. On its opposite end, the pore is capped by the side chain of His130 when it adopts its 'gate-closed' conformation that enables coordination to a ferroxidase iron. A change to its 'gate-open', noncoordinative conformation creates a path for the translocation of iron from the ferroxidase center to the interior cavity. These structural observations, together with findings obtained from iron incorporation measurements in

  16. Comparison study of hybrid VS critical systems in point kinetics

    International Nuclear Information System (INIS)

    An essential motivation for hybrid systems is a potentially high level of intrinsic safety against reactivity accidents. In this respect, it is necessary to assess the behaviour of an Accelerator Driven System during a TOP, LOF or TOC accident. A comparison between a critical and sub-critical reactor shows a larger sensitivity for the critical system. The ADS has an unquestionable advantage in case of TOP but a less favourable behaviour as for LOFWS type of accidents. However in the ADS cases, the beam could be easily shut off during the transient. Therefore, a part of the R and D effort should be focused on the monitoring and control of power. (author)

  17. A Quasi-Analytical Study of the Nonrelativistic Two-Center Coulomb Problem

    International Nuclear Information System (INIS)

    The Schroedinger equation with a pertaining two-center mean field potential scheme is solved by the quasi-analytical ansatz methodology. The ground-state wave function and the corresponding energy of a nonrelativistic nucleon moving in the fields of two fixed Coulomb centers are reported and the behavior of the energy vs. engaged parameters is depicted via illustrative figures. (author)

  18. Clinical and experimental studies of multiple sclerosis in Russia: experience of the leading national research centers

    Directory of Open Access Journals (Sweden)

    Zavalishin IA

    2015-08-01

    Full Text Available Igor A Zavalishin,1 Alexey A Belogurov Jr,2–4 Yakov A Lomakin,2 Natalia A Ponomarenko,2 Sofia N Morozova,1 Zinaida A Suslina,1,† Michael A Piradov,1 Sergey N Illarioshkin,1 Alexander G Gabibov2–5 1Research Center of Neurology, 2Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, 3Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Republic of Tatarstan, 4Institute of Gene Biology, RAS, 5Chemistry Department, Moscow State University, Moscow, Russia †Dr Zinaida A Suslina passed away on June 22, 2014 Abstract: Mechanisms of axonal damage and adaptive capacity in multiple sclerosis (MS, including cortical reorganization, have been actively studied in recent years. The lack of regenerative capabilities and the irreversibility of neurodegeneration in MS are critical factors for the optimization of MS treatment. In this study, we present the results of clinical and basic studies in the field of MS by two leading Russian centers. Clinical and neuroimaging correlations show that spinal damage in MS is accompanied by functional reorganization of the cerebral cortex, which is determined not only by the efferent component but also by the afferent component. Comparative analysis of MS treatment with both interferon β1b (IFN-β1b and IFN-β1a at a dosage of 22 µg for 3 years through subcutaneous administration and glatiramer acetate showed equally high efficiency in reducing the number of exacerbations in relapsing-remitting MS and secondary-progressive MS. We demonstrate a reduced risk of disability in relapsing-remitting MS and secondary-progressive MS patients in all groups treated with IFN-β1 and glatiramer acetate. MS appears to be a disease that would greatly benefit from the development of personalized therapy; thus, adequate molecular predictors of myelin degradation are greatly needed. Therefore, novel ideas related to the viral hypothesis of the etiology of MS and new targets for

  19. Comparison of TOPEX/Poseidon orbit determination solutions obtained by the Goddard Space Flight Center Flight Dynamics Division and Precision Orbit Determination Teams

    Science.gov (United States)

    Doll, C.; Mistretta, G.; Hart, R.; Oza, D.; Cox, C.; Nemesure, M.; Bolvin, D.; Samii, Mina V.

    1993-01-01

    Orbit determination results are obtained by the Goddard Space Flight Center (GSFC) Flight Dynamics Division (FDD) using the Goddard Trajectory Determination System (GTDS) and a real-time extended Kalman filter estimation system to process Tracking Data and Relay Satellite (TDRS) System (TDRSS) measurements in support of the Ocean Topography Experiment (TOPEX)/Poseidon spacecraft navigation and health and safety operations. GTDS is the operational orbit determination system used by the FDD, and the extended Kalman fliter was implemented in an analysis prototype system, the Real-Time Orbit Determination System/Enhanced (RTOD/E). The Precision Orbit Determination (POD) team within the GSFC Space Geodesy Branch generates an independent set of high-accuracy trajectories to support the TOPEX/Poseidon scientific data. These latter solutions use the Geodynamics (GEODYN) orbit determination system with laser ranging tracking data. The TOPEX/Poseidon trajectories were estimated for the October 22 - November 1, 1992, timeframe, for which the latest preliminary POD results were available. Independent assessments were made of the consistencies of solutions produced by the batch and sequential methods. The batch cases were assessed using overlap comparisons, while the sequential cases were assessed with covariances and the first measurement residuals. The batch least-squares and forward-filtered RTOD/E orbit solutions were compared with the definitive POD orbit solutions. The solution differences were generally less than 10 meters (m) for the batch least squares and less than 18 m for the sequential estimation solutions. The differences among the POD, GTDS, and RTOD/E solutions can be traced to differences in modeling and tracking data types, which are being analyzed in detail.

  20. Sage grouse on the Yakima Training Center: A summary of studies conducted during 1989 and 1990

    Energy Technology Data Exchange (ETDEWEB)

    Eberhardt, L.E. (Pacific Northwest Lab., Richland, WA (USA)); Hofmann, L.A. (Yakima Training Center, WA (USA). Coe-Truman Technologies)

    1991-03-01

    A two-year study, sponsored by the U.S. Department of the Army and conducted by Pacific Northwest Laboratory, was initiated in 1989 to study sage grouse on the Yakima Training Center (YTC). The specific objectives of this study were (1) to obtain detailed information on the distribution and relative density of sage grouse on the YTC, (2) to identify movement and habitat use patterns of sage grouse on the YTC, (3) to identify crucial habitat for sage grouse on the YTC, and (4) to provide management recommendations. Sage grouse were selected for study because they are a US Fish and Wildlife Service candidate species for the threatened and endangered list in Washington, and because the YTC probably contains the largest population of sage grouse left on federally owned lands in this state. The locations of 11 sage grouse leks, or breeding grounds, were determined on the YTC during extensive spring helicopter surveys. The maximum number of sage grouse observed during ground surveys of these leks varied from 2 to 55 birds. One lek, located near Range 19, was probably used by 40 to 50% of the YTC sage grouse population. Fifteen years of counts of males on leks indicate that the YTC sage grouse population was most numerous during the early to mid 1980s. Since the mid-1980s, sage grouse numbers appear to have declined on the YTC and in other locations in Washington. Forty-six sage grouse (17 females and 29 males) were captured and fitted with radio transmitters during 1989 and 1990. Movements by these sage grouse were both erratic and large when compared with other studies. We believe that many of the atypical movements were in response to military training activities. Sage grouse appeared to seek out areas on the YTC where human disturbance was low. Recommendations are made for improving the management of grouse habitat.

  1. User-Centered Design for Interactive Maps: A Case Study in Crime Analysis

    Directory of Open Access Journals (Sweden)

    Robert E. Roth

    2015-02-01

    Full Text Available In this paper, we address the topic of user-centered design (UCD for cartography, GIScience, and visual analytics. Interactive maps are ubiquitous in modern society, yet they often fail to “work” as they could or should. UCD describes the process of ensuring interface success—map-based or otherwise—by gathering input and feedback from target users throughout the design and development of the interface. We contribute to the expanding literature on UCD for interactive maps in two ways. First, we synthesize core concepts on UCD from cartography and related fields, as well as offer new ideas, in order to organize existing frameworks and recommendations regarding the UCD of interactive maps. Second, we report on a case study UCD process for GeoVISTA CrimeViz, an interactive and web-based mapping application supporting visual analytics of criminal activity in space and time. The GeoVISTA CrimeViz concept and interface were improved iteratively by working through a series of user→utility→usability loops in which target users provided input and feedback on needs and designs (user, prompting revisions to the conceptualization and functional requirements of the interface (utility, and ultimately leading to new mockups and prototypes of the interface (usability for additional evaluation by target users (user… and so on. Together, the background review and case study offer guidance for applying UCD to interactive mapping projects, and demonstrate the benefit of including target users throughout design and development.

  2. Implementing Cognitive Behavioral Therapy in the real world: A case study of two mental health centers

    Directory of Open Access Journals (Sweden)

    Burns Barbara J

    2008-02-01

    Full Text Available Abstract Background Behavioral health services for children and adolescents in the U.S. are lacking in accessibility, availability and quality. Evidence-based interventions for emotional and behavioral disorders can improve quality, yet few studies have systematically examined their implementation in routine care settings. Methods Using quantitative and qualitative data, we evaluated a multi-faceted implementation strategy to implement cognitive-behavioral therapy (CBT for depressed adolescents into two publicly-funded mental healthcare centers. Extent of implementation during the study's duration and variables influencing implementation were explored. Results Of the 35 clinicians eligible to participate, 25 (71% were randomized into intervention (n = 11 or usual care (n = 14. Nine intervention clinicians completed the CBT training. Sixteen adolescents were enrolled in CBT with six of the intervention clinicians; half of these received at least six CBT manually-based sessions. Multiple barriers to CBT adoption and sustained use were identified by clinicians in qualitative interviews. Conclusion Strategies to implement evidence-based interventions into routine clinical settings should include multi-method, pre-implementation assessments of the clinical environment and address multiple barriers to initial uptake as well as long-term sustainability.

  3. Vitamin D Deficiency in Healthy Male Population: Results of the Iranian Multi- Center Osteoporosis Study

    Directory of Open Access Journals (Sweden)

    Z Rahnavard

    2010-09-01

    Full Text Available "nBackground: The prevalence of vitamin D deficiency and its causative factors has been estimated more frequently in elder popula­tion, women, and patients with osteoporosis in different countries, but this issue is less defined in male population within different age groups especially in Asian countries. Therefore, we studied the role of effective factors in vitamin D defi­ciency and its prevalence in Iranian healthy men."nMethods: This study was a multi center and carried out in five metropolitans in Iran. Serum 25 Hydroxy vitamin D and other biochemical variables were determined in 2396 healthy men in late winter of 2001."nResults: 68.8% of participants suffered from vitamin D deficiency. Vitamin D levels were the highest in Bushehr (n= 111, 40.3% (P< 0.05 and between Shiraz and Tabriz, Shiraz had the better values (P< 0.05. Tehran had the highest prevalence of vitamin D deficiency (n= 380, n= 85.7%. Geographical zone independently predicted vitamin D status (P< 0.05. There was not any association among age (r= 0.035, P> 0.05, physical activity (r= 0.023, P> 0.05, and exposure of face & hands to sunlight (r= 0.022, P> 0.05 with vitamin D levels."nConclusion: Prevalence of vitamin D deficiency in Iranian male population is high, considering Iranian cultural and geographi­cal zones, food fortification and life style modification is recommended.

  4. A Polysomnography Study of Kleine-Levin Syndrome in a Single Center

    Institute of Scientific and Technical Information of China (English)

    Yan-Wen Luo; Huan Yu; Lu-Hua Yuan; Guo-Xing Zhu

    2016-01-01

    Background:Kleine-Levin syndrome (KLS) is a rare sleep disorder characterized by recurrent episodes of hypersomnia.Polysomnographic (PSG) researches of KLS have been reported only in few publications in the past decades.This study aimed to investigate the characteristics of PSG of KLS.Methods:This study,which was conducted from March 2010 to July 2014,included seven patients diagnosed with KLS in the Sleep and Wake Disorder Center of Huashan Hospital,Fudan University (Shanghai,China).PSG and multiple sleep latency tests (MSLT) were performed during their episodes and the results were evaluated.Results:Five of the seven patients were males.The mean age at KLS onset was 15.6 ± 3.6 years.The number of episodes ranged from 2 to 7.The duration of episodes lasted from 4 to 11 days.The sleep architecture and proportion were normal in most of the patients.The average value of mean sleep latency was 6.9 ± 4.1 min.No sleep-onset rapid eye movement (SOREM) was detected in three of the patients,whereas one patient experienced one period of SOREM,and such episodes occurred twice in other two patients.Conclusions:We found that sleep architecture and proportion were normal in most KLS patients.However,the results of PSG and MSLT had no specificity for KLS patients.

  5. In-hospital mortality following acute myocardial infarction in Kosovo: Asingle center study

    International Nuclear Information System (INIS)

    Randomized trials have demonstrated that primary angioplasty is moreeffective than intravenous thrombolysis in reducing mortality and morbidityin patients with acute myocardial infarction (AMI). The aim of this study wasto assess the in-hospital mortality of patients with AMI admitted to the onlytertiary care center in Kosovo, where coronary percutaneous interventionprocedures are unavailable. We also assessed the impact of age and gender onin-hospital mortality. Consecutive patients with the diagnosis of AMI,admitted in our institution between 1999 and 2007, were included in thisretrospective study. Of 2848 patients (mean age 61+- 1.3 years, 73.4% males)admitted with AMI, 292 (10.25%) died during in-hospital stay. The overallin-hospital mortality was 12.3% for women and 9.5% for men (P<05). Women weresignificantly older than men (64.2+-11 years vs. 59.7+-11.8 years, P<.05).Mean length of stay was 12.0+-94 for women and 10.7+-7.6 for men. From 1999break was detected by the application of thepatients with Ami but themortality rate remained stable. Compared to developed countries, patientswith AMI in Kososvo present at an early age but have a higher mortality rate.Women with AMI had a significantly higher in-hospital mortality rate thanmen. The lack of percutaneous coronary intervention procedures in AMIpatients may have contributed to the high in-hospital mortality in ourpopulation. (auhor)

  6. Inferior alveolar nerve injuries associated with mandibular fractures at risk: a two-center retrospective study.

    Science.gov (United States)

    Boffano, Paolo; Roccia, Fabio; Gallesio, Cesare; Karagozoglu, K; Forouzanfar, Tymour

    2014-12-01

    The aim of the study was to investigate the incidence of the inferior alveolar nerve (IAN) injury in mandibular fractures. This study is based on two databases that have continuously recorded patients hospitalized with maxillofacial fractures in two departments-Department of Maxillofacial Surgery, Vrije Universiteit University Medical Center, Amsterdam, the Netherlands, and Division of Maxillofacial Surgery, San Giovanni Battista Hospital, Turin, Italy. Demographic, anatomic, and etiology variables were considered for each patient and statistically assessed in relation to the neurosensory IAN impairment. Statistically significant associations were found between IAN injury and fracture displacement (p = 0.03), isolated mandibular fractures (p = 0.01), and angle fractures (p = 0.004). A statistically significant association was also found between IAN injury and assaults (p = 0.03). Displaced isolated mandibular angle fractures could be considered at risk for increased incidence of IAN injury. Assaults seem to be the most important etiological factor that is responsible for IAN lesions. PMID:25383147

  7. Erectile Dysfunction in Chronic Prostatitis/Chronic Pelvic Pain Syndrome: Outcomes from a Multi-Center Study and Risk Factor Analysis in a Single Center

    Science.gov (United States)

    Chen, Xin; Wang, Zhu; Chen, Shengfu; Yang, Qiyun; Wan, Zi; Han, Dayu; Xiao, Haipeng; Sun, Xiangzhou; Deng, Chunhua

    2016-01-01

    The aim of this study was to investigate the prevalence of erectile dysfunction (ED) in patients with chronic prostatitis/chronic pelvic pain syndrome (CP/CPPS) and explore the influence of UPOINT domains, National Institutes of Health-CP symptom index (NIH-CPSI) and other factors on ED prevalence. This was a prospective study of consecutive patients with CP/CPPS seen at 11 tertiary hospitals during January–July 2014. ED was diagnosed as a score ofclinical examination, asocio-demographic questionnaire, the Patient Health Questionnaire (PHQ), the Pain Catastrophizing Scale (PCS), NIH-CPSI and IIEF-5.1406 patients from 11 centers (mean age, 32.18 years; range 18–60 years) were enrolled. ED was found in 638/1406 patients (45.4%), and was categorized as mild in 291(45.6%), moderate in 297(46.6%) and severe in50(7.7%). 192 patients from one center(mean age,31.3 years; range 18–57 years) were further studied.IIEF-5 score correlated negatively with NIH-CPSI(r = 0.251), PHQ (r = 0.355) and PCS (r = 0.322)scores (P<0.001).PHQ score correlated positively with NIH-CPSI (r = 0.586) and PCS(r = 0.662) scores (P<0.001).NIH-CPSI, PHQ, PCS and IIEF-5 scores did not differ significantly between class IIIA and IIIB CP/CPPS. Multivariate logistic regression showed that UPOINT psychological (P) domain and NIH-CPSI symptom severity were independent risk factors for ED in CP/CPPS. It is concluded that psychological factors and symptom severity are independent risk factors for ED in CP/CPPS. PMID:27120096

  8. Aerial Measuring System (AMS)/Israel Atomic Energy Commission (IAEC) Joint Comparison Study Report

    Energy Technology Data Exchange (ETDEWEB)

    Wasiolek, P. [National Security Technologies, LLC. (NSTec), Mercury, NV (United States); Halevy, I. [Israel Atomic Energy Commission (IAEC), Yavne (Israel)

    2013-12-23

    Under the 13th Bilateral Meeting to Combat Nuclear Terrorism conducted on January 8–9, 2013, the committee approved the development of a cost-effective proposal to conduct a Comparison Study of the Aerial Measuring System (AMS) of the U.S. Department of Energy (DOE), National Nuclear Security Administration (NNSA) and Israel Atomic Energy Commission (IAEC). The study was to be held at the Remote Sensing Laboratory (RSL), Nellis Air Force Base, Las Vegas, Nevada, with measurements at the Nevada National Security Site (NNSS). The goal of the AMS and the IAEC joint survey was to compare the responses of the two agencies’ aerial radiation detection systems to varied radioactive surface contamination levels and isotopic composition experienced at the NNSS, and the differing data processing techniques utilized by the respective teams. Considering that for the comparison both teams were using custom designed and built systems, the main focus of the short campaign was to investigate the impact of the detector size and data analysis techniques used by both teams. The AMS system, SPectral Advanced Radiological Computer System, Model A (SPARCS-A), designed and built by RSL, incorporates four different size sodium iodide (NaI) crystals: 1" × 1", 2" × 4" × 4", 2" × 4" ×16", and an “up-looking” 2" × 4" × 4". The Israel AMS System, Air RAM 2000, was designed by the IAEC Nuclear Research Center – Negev (NRCN) and built commercially by ROTEM Industries (Israel) and incorporates two 2" diameter × 2" long NaI crystals. The operational comparison was conducted at RSL-Nellis in Las Vegas, Nevada, during week of June 24–27, 2013. The Israeli system, Air RAM 2000, was shipped to RSL-Nellis and mounted together with the DOE SPARCS on a DOE Bell-412 helicopter for a series of aerial comparison measurements at local test ranges, including the Desert Rock Airport and Area 3 at the NNSS. A 4-person Israeli team from the IAEC NRCN supported the activity together with 11

  9. Aerial Measuring System (AMS)/Israel Atomic Energy Commission (IAEC) Joint Comparison Study Report

    International Nuclear Information System (INIS)

    Under the 13th Bilateral Meeting to Combat Nuclear Terrorism conducted on January 8-9, 2013, the committee approved the development of a cost-effective proposal to conduct a Comparison Study of the Aerial Measuring System (AMS) of the U.S. Department of Energy (DOE), National Nuclear Security Administration (NNSA) and Israel Atomic Energy Commission (IAEC). The study was to be held at the Remote Sensing Laboratory (RSL), Nellis Air Force Base, Las Vegas, Nevada, with measurements at the Nevada National Security Site (NNSS). The goal of the AMS and the IAEC joint survey was to compare the responses of the two agencies' aerial radiation detection systems to varied radioactive surface contamination levels and isotopic composition experienced at the NNSS, and the differing data processing techniques utilized by the respective teams. Considering that for the comparison both teams were using custom designed and built systems, the main focus of the short campaign was to investigate the impact of the detector size and data analysis techniques used by both teams. The AMS system, SPectral Advanced Radiological Computer System, Model A (SPARCS-A), designed and built by RSL, incorporates four different size sodium iodide (NaI) crystals: 1'' x 1'', 2'' x 4'' x 4'', 2'' x 4'' x16'', and an ''up-looking'' 2'' x 4'' x 4''. The Israel AMS System, Air RAM 2000, was designed by the IAEC Nuclear Research Center - Negev (NRCN) and built commercially by ROTEM Industries (Israel) and incorporates two 2'' diameter x 2'' long NaI crystals. The operational comparison was conducted at RSL-Nellis in Las Vegas, Nevada, during week of June 24-27, 2013. The Israeli system, Air RAM 2000, was shipped to RSL-Nellis and mounted together with the DOE SPARCS on a DOE Bell-412 helicopter for a series of aerial comparison measurements at local test

  10. Acute promyelocytic leukemia, study of predictive factors for Differentiation Syndrome, single center experience

    International Nuclear Information System (INIS)

    Reports about patients with acute promyelocytic leukemia from the Middle East are few; in this study we are reporting our single center experience of treating 29 patients over 6 years. Acute promyelocytic leukemia treatment response is markedly improved after the introduction of ATRA. Treatment related complication is still an important issue particularly Differentiation Syndrome. Prediction to its occurrence has been tried by other groups. We aimed to study all the possible predictive factors of acute promyelocytic leukemia. Our chemotherapy induction protocol is AIDA protocol which includes ATRA 45 mg/m2/d in divided doses every 12h, and Idarubicin 12 mg/ m2/d IV on days 3, 5, 7, and 9. Differentiation Syndrome occurred in 48.3% of patients and was mainly presented by pulmonary symptoms in 55.2%, 6 cases died during induction. None of the predictive factors studied showed a statistically significant difference between patients who developed Differentiation Syndrome and those who did not. Differentiation Syndrome did not affect overall survival. Cox regression showed an inverse yet a non significant association between PET- HEMA and overall survival probability (P = 0.168). In conclusion, Differentiation Syndrome has no clear predictive factor to date. The best approach is to hold ATRA and give dexamethasone which is quite effective as reported in the literature. PETHEMA risk model has a moderately significant prognostic value look for all possible predictive factors of Differentiation syndrome (DS) which were first described in 1992 by frankel et al. (4) and represented the major complication through this disease course: studies had reported conflicting results about this (5,6). In addition we will compare our data to other areas of the world

  11. Study of Remote Monitoring and Maintenance Guiding Technique Based on LabVIEW for Machining Centers

    Institute of Scientific and Technical Information of China (English)

    JIA Zhi-cheng; HU Zhong-xiang; SHI Xiao-jun

    2005-01-01

    The virtual instruments (VIs), as a new type of instrument based on computer, has many advanced attractive characteristics.This research is based on VIs, and brings condition monitoring and knowledge-based maintenance support together through an integrated (including Intemet, ASP. NET, XML technique,VIs) network environment. Within the environment, machining centers operators, engineers or managers can share real-time data through the browser-based interface and minimize machining centers downtime by providing status monitoring and remote maintenance guiding from service centers.

  12. Prevalence estimates for primary brain tumors in China: a multi-center cross-sectional study

    Institute of Scientific and Technical Information of China (English)

    JIANG Tao; WU Nai-feng; CHEN Xiao-jun; XING Hou-xun; SU Tong-yong; WANG Zhong-cheng; TANG Gen-fu; LIN Yi; PENG Xiao-xia; ZHANG Xiao; ZHAI Xiu-wei; PENG Xiang; YANG Jin-qing; HUANG Hong-er

    2011-01-01

    Background Although the first leading cause of death in China was malignant neoplasms (mortality,374.1 per 100000 person-years),the full impact of primary brain tumors (PBT) on the healthcare system is not completely described because there are a few well documented reports about the epidemiologic features of brain tumors.This study aimed to report a comprehensive assessment on the prevalence of PBT.Methods A multicenter cross-sectional study on brain tumor (MCSBT) in China was initiated in five regional centers:Daqing (northeast),Puyang (north of China),Shiyan (center of China),Ma'anshan (center of China) and Shanghai (southeast).Prevalence rate was calculated by counting the number of people living with a PBT between October 1,2005 and September 30,2006 and dividing by the total population of the five communities at January 1,2006.Estimates of prevalence were expressed as percentages and grouped according to gender and to age in fifteen-year categories.Within these strata,the rates were estimated with 95% confidence intervals (C/) using the accurate calculation of CI for Poisson distribution.A chi-square test was used to compare the various frequencies with α<0.05.Age-standardized prevalence with the direct method was calculated with the ten-year age-specific prevalence and the age distribution of the Chinese population in 2010,obtained from Worldpopulation prospects:the 2008 revision.Results We estimated that the overall prevalence of PBT was 24.56 per 100 000 (95% CI,14.85 to 34.27),and the overall prevalence of PBT in female population (30.57 per 100 000 and its 95% CI ranged from 19.73 to 41.41 ) was higher than that in male population (18.84 per 100 000 and its 95% CI ranged from 10.33 to 27.35).However,the discrepancy between genders was not statistically significant because the 95% CI overlapped.Of 272 cases of newly diagnosed PBT,the proportion of histological subtypes by age groups,gender was statistically different (χ2=52.6510,P <0.0001).More than

  13. Future mission studies: Preliminary comparisons of solar flux models

    Science.gov (United States)

    Ashrafi, S.

    1991-01-01

    The results of comparisons of the solar flux models are presented. (The wavelength lambda = 10.7 cm radio flux is the best indicator of the strength of the ionizing radiations such as solar ultraviolet and x-ray emissions that directly affect the atmospheric density thereby changing the orbit lifetime of satellites. Thus, accurate forecasting of solar flux F sub 10.7 is crucial for orbit determination of spacecrafts.) The measured solar flux recorded by National Oceanic and Atmospheric Administration (NOAA) is compared against the forecasts made by Schatten, MSFC, and NOAA itself. The possibility of a combined linear, unbiased minimum-variance estimation that properly combines all three models into one that minimizes the variance is also discussed. All the physics inherent in each model are combined. This is considered to be the dead-end statistical approach to solar flux forecasting before any nonlinear chaotic approach.

  14. Comparison between electron and neutron Compton scattering studies

    Science.gov (United States)

    Moreh, Raymond; Finkelstein, Yacov; Vos, Maarten

    2015-05-01

    We compare two techniques: Electron Compton Scattering (ECS) and neutron Compton scattering (NCS) and show that using certain incident energies, both can measure the atomic kinetic energy of atoms in molecules and solids. The information obtained is related to the Doppler broadening of nuclear levels and is very useful for deducing the widths of excited levels in many nuclei in self absorption measurements. A comparison between the atomic kinetic energies measured by the two methods on the same samples is made. Some results are also compared with calculated atomic kinetic energies obtained using the harmonic approximation where the vibrational frequencies were taken from IR/Raman optical measurements. The advantages of the ECS method are emphasized.

  15. Comparison between electron and neutron Compton scattering studies

    Directory of Open Access Journals (Sweden)

    Moreh Raymond

    2015-01-01

    Full Text Available We compare two techniques: Electron Compton Scattering (ECS and neutron Compton scattering (NCS and show that using certain incident energies, both can measure the atomic kinetic energy of atoms in molecules and solids. The information obtained is related to the Doppler broadening of nuclear levels and is very useful for deducing the widths of excited levels in many nuclei in self absorption measurements. A comparison between the atomic kinetic energies measured by the two methods on the same samples is made. Some results are also compared with calculated atomic kinetic energies obtained using the harmonic approximation where the vibrational frequencies were taken from IR/Raman optical measurements. The advantages of the ECS method are emphasized.

  16. The NISE Net: Bringing the Study of the Very Small to US Science Centers

    OpenAIRE

    Glass, Margaret

    2007-01-01

    With funding from NSF, the Nanoscale Informal Science Education Network aims to use informal learning experiences to engage families, schoolchildren, and adults in nanoscale science, engineering, and technology in science centers and museums across the US.

  17. STUDY REGARDING THE ORGANIZATION OF MANAGEMENT ACCOUNTING IN THE CONTEXT OF RESPONSIBILITY CENTERS

    Directory of Open Access Journals (Sweden)

    RĂCHISAN PAULA RAMONA

    2009-05-01

    Full Text Available The organization on responsibility centers has lately become a generalized practice inside small and medium economic enterprises. Thus it made necessary the adaptation of management accounting to the new requirements. Introducing effective management by o

  18. An Evaluation of Surgical Prophylaxis Procedures in Turkey: A Multi-Center Point Prevalence Study

    Science.gov (United States)

    Kaya, Selcuk; Aktas, Seyhan; Senbayrak, Seniha; Tekin, Recep; Oztoprak, Nefise; Aksoy, Firdevs; Firat, Pinar; Yenice, Sevinc; Oncul, Ahsen; Gunduz, Alper; Solak, Semiha; Kadanali, Ayten; Cakar, Sule Eren; Caglayan, Derya; Yilmaz, Hava; Bozkurt, Ilkay; Elmaslar, Tulin; Tartar, Ayse Sagmak; Aynioglu, Aynur; Kocyigit, Nilgun Fidan; Koksal, Iftihar

    2016-01-01

    Objective: The purpose of this study was to evaluate compliance with guidelines in surgical prophylaxis (SP) procedures in Turkey. Materials and Methods: A point prevalence study involving 4 university, 5 education and research and 7 public hospitals was performed assessing compliance with guidelines for antibiotic use in SP. Compliance was based on the “Clinical Practice Guidelines for Antimicrobial Surgery (CPGAS) 2013” guideline. Results: Sixteen centers were included in the study, with 166 operations performed at these being evaluated. Parenteral antibiotic for SP was applied in 161 (96.9%) of these. Type of antibiotic was inappropriate in 66 (40.9%) cases and duration of use in 47 (29.1%). The main antibiotics used inappropriately in SP were ceftriaxone, glycopeptides and aminoglycosides. No significant difference was observed between secondary and tertiary hospitals in terms of inappropriate selection. Duration of prophylaxis was also incompatible with guideline recommendations in approximately half of surgical procedures performed in both secondary and tertiary hospitals, however statistical significance was observed between institutions in favor of tertiary hospitals. Conclusion: Antibiotics are to a considerable extent used in a manner incompatible with guidelines even in tertiary hospitals in Turkey. It must not be forgotten that several pre-, intra- and postoperative factors can be involved in the development of surgical site infections (SSI), and antibiotics are not the only option available for preventing these. A significant improvement can be achieved in prophylaxis with close observation, educational activities, collaboration with the surgical team and increasing compliance with guidelines. All health institutions must establish and apply their own SP consensus accompanied by the guidelines in order to achieve success in SP. PMID:27026760

  19. Impact of Pediatric Chronic Dialysis on Long-Term Patient Outcome: Single Center Study.

    Science.gov (United States)

    Levy Erez, Daniella; Krause, Irit; Dagan, Amit; Cleper, Roxana; Falush, Yafa; Davidovits, Miriam

    2016-01-01

    Objective. Owing to a shortage of kidney donors in Israel, children with end-stage renal disease (ESRD) may stay on maintenance dialysis for a considerable time, placing them at a significant risk. The aim of this study was to understand the causes of mortality. Study Design. Clinical data were collected retrospectively from the files of children on chronic dialysis (>3 months) during the years 1995-2013 at a single pediatric medical center. Results. 110 patients were enrolled in the study. Mean age was 10.7 ± 5.27 yrs. (range: 1 month-24 yrs). Forty-five children (42%) had dysplastic kidneys and 19 (17.5%) had focal segmental glomerulosclerosis. Twenty-five (22.7%) received peritoneal dialysis, 59 (53.6%) hemodialysis, and 6 (23.6%) both modalities sequentially. Median dialysis duration was 1.46 years (range: 0.25-17.54 years). Mean follow-up was 13.5 ± 5.84 yrs. Seventy-nine patients (71.8%) underwent successful transplantation, 10 (11.2%) had graft failure, and 8 (7.3%) continued dialysis without transplantation. Twelve patients (10.9%) died: 8 of dialysis-associated complications and 4 of their primary illness. The 5-year survival rate was 84%: 90% for patients older than 5 years and 61% for younger patients. Conclusions. Chronic dialysis is a suitable temporary option for children awaiting renal transplantation. Although overall long-term survival rate is high, very young children are at high risk for life-threatening dialysis-associated complications. PMID:27597898

  20. Etiological spectrum of recurrent jaundice in adults: A retrospective observational study from a tertiary care center

    Directory of Open Access Journals (Sweden)

    Gouranga Santra

    2016-01-01

    Full Text Available Introduction: Studies regarding etiological spectrum of recurrent jaundice are rare. We conducted this study to identify the causes of recurrent jaundice in a tertiary care center. Materials and Methods: Frequency of different causes of recurrent jaundice was assessed from 130 patients attended General Medicine Department over a period of 3 years. Recurrent jaundice was considered when patients had more than one episodes of jaundice with serum bilirubin ≥3 mg/dl since childhood. Recurrent jaundice was diagnosed from past medical records, records of follow-up visits, and current clinical presentation. Causes were identified from past and present medical records of history, clinical and laboratory examinations. Results: Causes of recurrent jaundice included prehepatic (30%, hepatic (59.23%, and posthepatic (10.77 % disorders. Prehepatic disorders were Gilbert′s syndrome (GS, megaloblastic anemia, autoimmune haemolytic anemia, Wilson′s disease, G6PD deficiency, etc. Hepatic disorders were exacerbations of alcoholic hepatitis, hepatitis B and C, autoimmune hepatitis, congestive cardiac failure, sarcoidosis, benign recurrent intrahepatic cholestasis, eclampsia, pregnancy induced cholestasis, falciparum malaria, drug induced liver injury (DILI, etc. Posthepatic causes were choledocholithiasis, recurrent pancreatitis, periampullary carcinoma, choledochal cyst, ascariasis, hemobilia, HIV cholangiopathy, autoimmune pancreatitis, etc. Prehepatic jaundice cases were younger. The highest level of total bilirubin was seen in alcoholic hepatitis, DILI, and hepatitis B. Alcoholic hepatitis was the most common cause of recurrent jaundice (19.23%. GS was the most common prehepatic cause. Mean age was lowest in GS and highest in DILI. Conclusion: Etiological spectrum of recurrent jaundice includes many prehepatic, hepatic or posthepatic disorders. A larger study may enlarge the spectrum.

  1. Prevalence of hyponatremia among patients who used indapamide and hydrochlorothiazide: A single center retrospective study

    Directory of Open Access Journals (Sweden)

    M Al Qahtani

    2013-01-01

    Full Text Available Hyponatremia is the most frequently encountered electrolyte abnormality among hospitalized patients and thiazide users. In this large single-center retrospective study, we aim to determine the prevalence and risk factors of hyponatremia among patients at the King Abdulaziz Medical City (KAMC, Riyadh, Saudi Arabia.To the best of our knowledge, this is the first such study in Saudi Arabia. A chart review was done for the years 2011-2012 of all admitted Saudi patients at KAMC who were treated with indapamide and hydrochlorothiazide. A total of 2000 patients were included [1237 females (629 indapamide and 608 hydrochlorothiazide and 762 males (371 indapamide and 391 hydrochlorothiazide]. Majority of the patients had type-2 diabetes mellitus (T2DM with an overall prevalence of 72.2%. The overall prevalence of hyponatremia, regardless of severity, in the indapamide group was 37.3% versus 38.7% in the hydrochlorothiazide group. Stratification for age revealed that older patients had relatively higher levels of sodium (Na as compared with younger patients, and this inverse association was significant (R = - 0.123; P <0.001. Increasing age, female gender and presence of T2DM were the significant risk factors for hyponatremia, explaining the 4.7% of the variance perceived (P <0.001. Our study suggests that the prevalence of hyponatremia among Saudi thiazide users is relatively high, and more so for the elderly and for those with T2DM. Early identification of this condition is important and caution should be exercised while prescribing thiazide drugs, particularly to those who are most at risk of developing hyponatremia to prevent related complications.

  2. Ecological baseline study of the Yakima Firing Center proposed land acquisition: A Preliminary Report

    Energy Technology Data Exchange (ETDEWEB)

    Rogers, L.E.; Beedlow, P.A.; Eberhardt, L.E.; Dauble, D.D.; Fitzner, R.E.

    1988-02-01

    A baseline census was conducted from October 1987 to Janurary 1988 on the property identified for possible expansion of the Yakima Firing Center. These studies provide general descriptions of the major plant communities presentand animal inhabitants during the late fall and winter study period. A vegetation map derived from a combination of onsite surveillance and remotely sensed imagery is also provided as part of this report. Through January 1988, 13 wildlife species of special interest to state and federal agencies, in addition to ducks and geese, were observed on the proposed expansion area. Then raptorial bird species were observed in the area, including bald eagles, golden eagles, and prairie falcons. Upland game bird species, such as sage grouse, California quail, chuckars, and gray (Hungarian) partridge were present. Loggerhead shrikes, a species of special interest, were also observed on the site. Estimates of waterfowl abundance are included for the Priest Rapids Pool of the Columbia River, which includes the proposed river crossing sites. The number of waterfowl on the proposed crossing areas were comparatively low during the winter of 1986 to 1987 and high in 1987 to 1988. Bald eagles ad common loons were observed on the crossing areas. Six small mammal species were captured during this study period;one, the sagebrush vole, is a species of special interest. Two large animal species, mule deer and elk, were noted on the site. Beaver were the only furbearig animals noted to date. Rainbow trout were the only fish species collected within the proposed northern expansion area. The distribution of fall chinook salmon spawning areas was documented within the proposed river crossing areas. 3 refs., 7 figs., 3 tabs.

  3. 3 MV hypervelocity dust accelerator at the Colorado Center for Lunar Dust and Atmospheric Studies

    International Nuclear Information System (INIS)

    A hypervelocity dust accelerator for studying micrometeorite impacts has been constructed at the Colorado Center for Lunar Dust and Atmospheric Studies (CCLDAS) at the University of Colorado. Based on the Max-Planck-Institüt für Kernphysik (MPI-K) accelerator, this accelerator is capable of emitting single particles of a specific mass and velocity selected by the user. The accelerator consists of a 3 MV Pelletron generator with a dust source, four image charge pickup detectors, and two interchangeable target chambers: a large high-vacuum test bed and an ultra-high vacuum impact study chamber. The large test bed is a 1.2 m diameter, 1.5 m long cylindrical vacuum chamber capable of pressures as low as 10−7 torr while the ultra-high vacuum chamber is a 0.75 m diameter, 1.1 m long chamber capable of pressures as low as 10−10 torr. Using iron dust of up to 2 microns in diameter, final velocities have been measured up to 52 km/s. The spread of the dust particles and the effect of electrostatic focusing have been measured using a long exposure CCD and a quartz target. Furthermore, a new technique of particle selection is being developed using real time digital filtering techniques. Signals are digitized and then cross-correlated with a shaped filter, resulting in a suppressed noise floor. Improvements over the MPI-K design, which include a higher operating voltage and digital filtering for detection, increase the available parameter space of dust emitted by the accelerator. The CCLDAS dust facility is a user facility open to the scientific community to assist with instrument calibrations and experiments.

  4. The causal relation between commitment and performance: a study in research centers

    International Nuclear Information System (INIS)

    In this work relation among leadership, motivation, organizational climate, teamwork, and the organizational and occupational commitment, were studied. The exploratory study was accomplished in three parts. In the first it was identified the more important performance factors in a larger relation resultant of the bibliographical research and in the second, it was undertaken a quantification the 4 performance factors together to the organizational and occupational commitments. In the first part, it was accomplished an exploratory research close to some experienced servants, with emphasis in the management area. In the second part it was interviewed 52 employees of the CCTM's at the Energy and Nuclear Research Institute - IPEN and 252 employees of the IAE at the Aerospace Technical Center - CTA. This research used 18 indicators of the organizational commitment and 18 indicators of the occupational commitment, all extracted from the instrument of Meyer, Allen and Smith. Beyond of these, it was used 7 demographic variables and 71 performance variables built from the theoretical revision. The results obtained with the exploratory research of the first part identified the 4 factors aforementioned performance factors. In the second part the obtained results in the two firsts places proved the hypothesis that the servants' locations or groups that show a higher degree of commitment tend to a higher degree of performance. In the third part of this study it was used the Structural Equations Modelling - SEM, from one theoretic model defined with the 12 more important variables from performance in both researched locals and with assistance of two statistical software SPSS and LISREL it was obtained a model of causal relations more strengthened to explain the relationship among the used variables. (author)

  5. Idaho Nuclear Technology and Engineering Center (INTEC) (formerly ICPP) ash reutilization study

    International Nuclear Information System (INIS)

    Since 1984, the coal-fired plant at the Idaho Nuclear Technology and Engineering Center (INTEC, formerly Idaho Chemical Processing Plant) has been generating fly ash at a rate of approximately 1,000 tons per year. This ash is hydrated and placed in an ash bury pit near the coal-fired plant. The existing ash bury pit will be full in less than 1 year at its present rate of use. A conceptual design to build a new ash bury pit was completed, and the new pit is estimated to cost $1.7 million. This report evaluates ash reutilization alternatives that propose to eliminate this waste stream and save the $1.7 million required to build a new pit. The alternatives include using ash for landfill day cover, concrete admixture, flowable fill, soil stabilization, waste remediation, and carbon recovery technology. Both physical and chemical testing, under the guidance of the American Society for Testing and Materials, have been performed on ash from the existing pit and from different steps within the facility's processes. The test results have been evaluated, compared to commercial ash, and are discussed as they relate to reutilization alternatives. This study recommends that the ash be used in flowable fill concrete for Deactivation and Demolition work at the Idaho National Engineering and Environmental Laboratory

  6. Irradiation studies at Los Alamos Neutron Science Center supporting the Accelerator Production of Tritium project

    International Nuclear Information System (INIS)

    Recognizing the need for definitive mechanical and physical property data supporting design work, the APT project sponsored an aggressive irradiation program at the beam stop area at the Los Alamos Neutron Science Center (LANSCE). The LANSCE beam energy is 800 MeV with a current of 2 mA. By focusing the beam, a proton flux prototype to that expected at APT was achieved. The initial irradiations focused on radiation damage effects on the mechanical and physical properties of materials selected for structural components and neutron-producing target elements. The irradiations also included models of the Pb-Al blanket module and capsules that served as models of the He gas containment system. The program was extended to include measurement of in situ corrosion0related phenomena, decay heat induced by proton bombardment of a W target, and performance of He-gas-handling equipment. These later measurements also were effective in developing instrumentation applicable to the surveillance of an operating plant. Results from these studies are becoming available and are summarized here

  7. A randomized study of internet parent training accessed from community technology centers.

    Science.gov (United States)

    Irvine, A Blair; Gelatt, Vicky A; Hammond, Michael; Seeley, John R

    2015-05-01

    Behavioral parent training (BPT) has been shown to be efficacious to improve parenting skills for problematic interactions with adolescents displaying oppositional and antisocial behaviors. Some research suggests that support group curricula might be transferred to the Internet, and some studies suggest that other curriculum designs might also be effective. In this research, a BPT program for parents of at-risk adolescents was tested on the Internet in a randomized trial (N = 307) from computer labs at six community technology centers in or near large metropolitan areas. The instructional design was based on asynchronous scenario-based e-learning, rather than a traditional parent training model where presentation of course material builds content sequentially over multiple class sessions. Pretest to 30-day follow-up analyses indicated significant treatment effects on parent-reported discipline style (Parenting Scale, Adolescent version), child behavior (Eyberg Child Behavior Inventory), and on social cognitive theory constructs of intentions and self-efficacy. The effect sizes were small to medium. These findings suggest the potential to provide effective parent training programs on the Internet. PMID:25351866

  8. Disparities in the use of ambulatory surgical centers: a cross sectional study

    Directory of Open Access Journals (Sweden)

    Wei John T

    2009-07-01

    Full Text Available Abstract Background Ambulatory surgical centers (ASCs provide outpatient surgical services more efficiently than hospital outpatient departments, benefiting patients through lower co-payments and other expenses. We studied the influence of socioeconomic status and race on use of ASCs. Methods From the 2005 State Ambulatory Surgery Database for Florida, a cohort of discharges for urologic, ophthalmologic, gastrointestinal, and orthopedic procedures was created. Socioeconomic status was established at the zip code level. Logistic regression models were fit to assess associations between socioeconomic status and ASC use. Results Compared to the lowest group, patients of higher socioeconomic status were more likely to have procedures performed in ASCs (OR 1.07 CI 1.05, 1.09. Overall, the middle socioeconomic status group was the most likely group to use the ASC (OR 1.23, CI 1.21 to 1.25. For whites and blacks, higher status is associated with increased ASC use, but for Hispanics this relationship was reversed (OR 0.84 CI 0.78, 0.91. Conclusion Patients of lower socioeconomic status treated with outpatient surgery are significantly less likely to have their procedures in ASCs, suggesting that less resourced patients are encountering higher cost burdens for care. Thus, the most economically vulnerable group is unnecessarily subject to higher charges for surgery.

  9. A Detailed Observational Study of Molecular Loops 1 and 2 in the Galactic Center

    CERN Document Server

    Torii, Kazufumi; Fujishita, Motosuji; Kawase, Tokuichi; Yamamoto, Hiroaki; Kawamura, Akiko; Mizuno, Norikazu; Onishi, Toshikazu; Mizuno, Akira; Machida, Mami; Takahashi, Kunio; Nozawa, Satoshi; Matsumoto, Ryoji; Fukui, Yasuo

    2009-01-01

    Fukui et al. (2006) discovered two molecular loops in the Galactic center that are likely created by the magnetic flotation due to the Parker instability. Following the discovery, we present here a detailed study of the two loops based on NANTEN 12CO(J=1-0) and 13CO(J=1-0) datasets. The two loops are located in (l, b) ~ (357, 1) deg. at a velocity range of -20 - -180 km/s with a projected total length of ~ 600 pc and heights of ~250 - 300 pc from the Galactic disk at a distance of 8.5 kpc. They show bright foot points in the 12CO emission in the edges of the loops at b ~ 0.8 - 1.0 deg.. These foot points are characterized by velocity dispersions of 50 - 100 km/s. The loops also show large-scale velocity gradients of ~30 - 50 km/s per ~100 pc. The loops also have counterparts of the HI gas and IRAS emissions. The HI gas with weaker intensity fills the inner part of the loops where there is no significant 12CO and 13CO emission. We estimate total mass and kinetic energy of the loops are ~1.5 - 2.5 x 10^6 Msun a...

  10. Ecological baseline study of the Yakima Firing Center proposed land acquisition: A status report

    Energy Technology Data Exchange (ETDEWEB)

    Rogers, L.E.; Beedlow, P.A.; Eberhardt, L.E.; Dauble, D.D.; Fitzner, R.E.

    1989-01-01

    This report provides baseline environmental information for the property identified for possible expansion of the Yakima Firing Center. Results from this work provide general descriptions of the animals and major plant communities present. A vegetation map derived from a combination of on-site surveillance and remotely sensed imagery is provided as part of this report. Twenty-seven wildlife species of special interest (protected, sensitive, furbearer, game animal, etc.), and waterfowl, were observed on the proposed expansion area. Bird censuses revealed 13 raptorial species (including four of special interest: bald eagle, golden eagle, osprey, and prairie falcon); five upland game bird species (sage grouse, California quail, chukar, gray partridge, and ring-necked pheasant); common loons (a species proposed for state listing as threatened); and five other species of special interest (sage thrasher, loggerhead shrike, mourning dove, sage sparrow, and long-billed curlew). Estimates of waterfowl abundance are included for the Priest Rapids Pool of the Columbia River. Six small mammal species were captured during this study; one, the sagebrush vole, is a species of special interest. Two large animal species, mule deer and elk, were noted on the site. Five species of furbearing animals were observed (coyote, beaver, raccoon, mink, and striped skunk). Four species of reptiles and one amphibian were noted. Fisheries surveys were conducted to document the presence of gamefish, and sensitive-classified fish and aquatic invertebrates. Rainbow trout were the only fish collected within the boundaries of the proposed northern expansion area. 22 refs., 10 figs., 4 tabs.

  11. Innovation in patient-centered care: lessons from a qualitative study of innovative health care organizations in Washington State

    Directory of Open Access Journals (Sweden)

    Reed Peter

    2012-12-01

    Full Text Available Abstract Background Growing interest in the promise of patient-centered care has led to numerous health care innovations, including the patient-centered medical home, shared decision-making, and payment reforms. How best to vet and adopt innovations is an open question. Washington State has been a leader in health care reform and is a rich laboratory for patient-centered innovations. We sought to understand the process of patient-centered care innovation undertaken by innovative health care organizations – from strategic planning to goal selection to implementation to maintenance. Methods We conducted key-informant interviews with executives at five health plans, five provider organizations, and ten primary care clinics in Washington State. At least two readers of each interview transcript identified themes inductively; final themes were determined by consensus. Results Innovation in patient-centered care was a strategic objective chosen by nearly every organization in this study. However, other goals were paramount: cost containment, quality improvement, and organization survival. Organizations commonly perceived effective chronic disease management and integrated health information technology as key elements for successful patient-centered care innovation. Inertia, resource deficits, fee-for-service payment, and regulatory limits on scope of practice were cited as barriers to innovation, while organization leadership, human capital, and adaptive culture facilitated innovation. Conclusions Patient-centered care innovations reflected organizational perspectives: health plans emphasized cost-effectiveness while providers emphasized health care delivery processes. Health plans and providers shared many objectives, yet the two rarely collaborated to achieve them. The process of innovation is heavily dependent on organizational culture and leadership. Policymakers can improve the pace and quality of patient-centered innovation by setting targets

  12. Differential Item Functioning for Lesbians, Bisexual, and Heterosexual Women in the Center for Epidemiological Studies Depression Scale

    Science.gov (United States)

    Birnholz, Justin L.; Young, Michael A.

    2012-01-01

    This study assessed whether the Center for Epidemiological Studies Depression Scale (CES-D) functions equivalently in assessing depressive symptom severity in lesbian, bisexual, and heterosexual women. Using differential item functioning methods, the authors examined (a) whether there is a bias in CES-D total scores and in individual item scores…

  13. Longitudinal Invariance of the Center for Epidemiologic Studies-Depression Scale among Girls and Boys in Middle School

    Science.gov (United States)

    Motl, Robert W.; Dishman, Rod K.; Birnbaum, Amanda S.; Lytle, Leslie A.

    2005-01-01

    This study tested the longitudinal factorial invariance of a theoretically consistent, higher-order model for Center for Epidemiologic Studies-Depression (CES-D) scores among adolescent girls and boys in middle school. Data were collected from 2,416 adolescents who completed a survey containing the CES-D in the fall of 1998, spring of 1999, and…

  14. Turning Processes: The Change of Representations in Consultee-Centered Case Consultation. Linkoping Studies in Education and Psychology No. 74.

    Science.gov (United States)

    Hylander, Ingrid

    This study investigates sudden changes in the consultee-centered case consultation method. Three types of sudden changes in consultation were identified: (1) turnings, (2) turning points, and (3) shifts. The first part of this study explores the turning of the consultee's representation of his/her interaction to the client. The second part…

  15. Fixation method does not affect restoration of rotation center in hip replacements: A single-site retrospective study

    Directory of Open Access Journals (Sweden)

    Wegner Alexander

    2012-06-01

    Full Text Available Abstract Background Aseptic loosening is one of the greatest problems in hip replacement surgery. The rotation center of the hip is believed to influence the longevity of fixation. The aim of this study was to compare the influence of cemented and cementless cup fixation techniques on the position of the center of rotation because cemented cup fixation requires the removal of more bone for solid fixation than the cementless technique. Methods We retrospectively compared pre- and post-operative positions of the hip rotation center in 25 and 68 patients who underwent artificial hip replacements in our department in 2007 using cemented or cementless cup fixation, respectively, with digital radiographic image analysis. Results The mean horizontal and vertical distances between the rotation center and the acetabular teardrop were compared in radiographic images taken pre- and post-operatively. The mean horizontal difference was −2.63 mm (range: -11.00 mm to 10.46 mm, standard deviation 4.23 mm for patients who underwent cementless fixation, and −2.84 mm (range: -10.87 to 5.30 mm, standard deviation 4.59 mm for patients who underwent cemented fixation. The mean vertical difference was 0.60 mm (range: -20.15 mm to 10.00 mm, standard deviation 3.93 mm and 0.41 mm (range: -9.26 mm to 6.54 mm, standard deviation 3.58 mm for the cementless and cemented fixation groups, respectively. The two fixation techniques had no significant difference on the position of the hip rotation center in the 93 patients in this study. Conclusions The hip rotation center was similarly restored using either the cemented or cementless fixation techniques in this patient cohort, indicating that the fixation technique itself does not interfere with the position of the center of rotation. To completely answer this question further studies with more patients are needed.

  16. Comparison of radiation doses obtained for radiation monitoring of controlled areas with radiation doses obtained for personnel dosimetry in radiodiagnosis centers; Comparacion de dosis obtenidas por monitoreo en areas controladas con las obtenidas por dosimetria personal en centros de radiodiagnostico

    Energy Technology Data Exchange (ETDEWEB)

    Lescano, Roberto; Caspani, Carlos [Ministerio de Salud y Medio Ambiente, Santa Fe (Argentina). Direccion General de Auditoria Medica. Radiofisica Sanitaria]|[Universidad Nacional del Litoral, Santa Fe (Argentina). Faculdad de Bioquimica y Ciencias Biologicas. Escuela Superior de Sanidad

    2001-07-01

    In this paper we propose to search an indicator that shows, at an objective way, the quality of the radioprotection actions. The method is about to determine doses, measured in the work area, connecting them with the workload, and finally get the dose for the center. Them we make a comparison with the personal film dosimetry data. We discuss the final results, evaluating the radioprotection conditions in daily work. (author)

  17. Cancer Therapy Directed by Comprehensive Genomic Profiling: A Single Center Study.

    Science.gov (United States)

    Wheler, Jennifer J; Janku, Filip; Naing, Aung; Li, Yali; Stephen, Bettzy; Zinner, Ralph; Subbiah, Vivek; Fu, Siqing; Karp, Daniel; Falchook, Gerald S; Tsimberidou, Apostolia M; Piha-Paul, Sarina; Anderson, Roosevelt; Ke, Danxia; Miller, Vincent; Yelensky, Roman; Lee, J Jack; Hong, David S; Kurzrock, Razelle

    2016-07-01

    Innovative molecular diagnostics deployed in the clinic enable new ways to stratify patients into appropriate treatment regimens. These approaches may resolve a major challenge for early-phase clinical trials, which is to recruit patients who, while having failed previous treatments, may nevertheless respond to molecularly targeted drugs. We report the findings of a prospective, single-center study conducted in patients with diverse refractory cancers who underwent comprehensive genomic profiling (CGP; next-generation sequencing, 236 genes). Of the 500 patients enrolled, 188 (37.6%) received either matched (N = 122/188, 65%) or unmatched therapy (N = 66/188, 35%). The most common reasons that patients were not evaluable for treatment included insufficient tissue, death, or hospice transfer. The median number of molecular alterations per patient was five (range, 1-14); median number of prior therapies, four. The most common diagnoses were ovarian cancer (18%), breast cancer (16%), sarcoma (13%), and renal cancer (7%). Of the 339 successfully profiled patients, 317 (93.5%) had at least one potentially actionable alteration. By calculating matching scores, based on the number of drug matches and genomic aberrations per patient, we found that high scores were independently associated with a greater frequency of stable disease ≥6 months/partial/complete remission [22% (high scores) vs. 9% (low scores), P = 0.024], longer time-to-treatment failure [hazard ratio (HR) = 0.52; 95% confidence interval (CI) = 0.36-0.74; P = 0.0003], and survival (HR = 0.65; 95% CI = 0.43-1.0; P = 0.05). Collectively, this study offers a clinical proof of concept for the utility of CGP in assigning therapy to patients with refractory malignancies, especially in those patients with multiple genomic aberrations for whom combination therapies could be implemented. Cancer Res; 76(13); 3690-701. ©2016 AACR. PMID:27197177

  18. A Retrospective Study on Snakebite Victims in a Tertiary Referral Center

    Directory of Open Access Journals (Sweden)

    Nasim Zamani

    2016-06-01

    Full Text Available Background: Snakebite is a serious public health problem in the world. The annual incidence of snakebites ranges from 4.5-9.1 in 100,000 population in Iran. With regard to diversity of envenomation profiles in different geographical parts of Iran, the aim of this study was to determine the demographical data, clinical and laboratory findings, and the outcome of the snakebite victims referred to a tertiary referral hospital. Methods: In this retrospective, cross-sectional study in Loghman Hakim Hospital Poisoning Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran, during a four-year period from March 2007 to March 2011. The demographic data, clinical manifestations, paraclinical findings, treatments performed before hospital admission, time elapsed between the bite and hospital admission, total dose of antivenom and the patients’ outcomes were investigated. Results: Seventy cases (58 males, 12 females were evaluated. Most of the cases (79% were older than 20 year old. The most common bite site was upper extremity (67%. Most of the patients were admitted within 5 h after the snakebite. The most common local and systemic manifestations were swelling (90%, pain (81.4%, nausea and vomiting (24.3%. Leukocytosis (35.7% and thrombocytopenia (25.7% were the most common laboratory abnormalities. Most of the patients (97.1% were treated with antivenom. Fifty percent of the patients only received 3-5 vials of antivenom. The mortality rate was 1.4%. Necrosis of the toes and compartment syndrome were the only serious complications. Conclusion: The findings emphasize the importance of early admission to the hospital and treatment with antivenom to avoid morbidity and mortality.

  19. Human-centered modeling in human reliability analysis: some trends based on case studies

    International Nuclear Information System (INIS)

    As an informal working group of researchers from France, Germany and The Netherlands created in 1993, the EARTH association is investigating significant subjects in the field of human reliability analysis (HRA). Our initial review of cases from nuclear operating experience showed that decision-based unrequired actions (DUA) contribute to risk significantly on the one hand. On the other hand, our evaluation of current HRA methods showed that these methods do not cover such actions adequately. Especially, practice-oriented guidelines for their predictive identification are lacking. We assumed that a basic cause for such difficulties was that these methods actually use a limited representation of the stimulus-organism-response (SOR) paradigm. We proposed a human-centered model, which better highlights the active role of the operators and the importance of their culture, attitudes and goals. This orientation was encouraged by our review of current HRA research activities. We therefore decided to envisage progress by identifying cognitive tendencies in the context of operating and simulator experience. For this purpose, advanced approaches for retrospective event analysis were discussed. Some orientations for improvements were proposed. By analyzing cases, various cognitive tendencies were identified, together with useful information about their context. Some of them match psychological findings already published in the literature, some of them are not covered adequately by the literature that we reviewed. Finally, this exploratory study shows that contextual and case-illustrated findings about cognitive tendencies provide useful help for the predictive identification of DUA in HRA. More research should be carried out to complement our findings and elaborate more detailed and systematic guidelines for using them in HRA studies

  20. In-hospital mortality following acute myocardial infarction in Kosovo : A single center study

    International Nuclear Information System (INIS)

    Randomized trials have demonstrated that primary angioplasty is more effective than intravenous thrombolysis in reducing mortality and morbidity in patients with acute myocardial infarction (AMI). The aim of this study was to assess the in-hospital mortality of patients with AMI admitted to the only tertiary care center in Kosovo, where coronary percutaneous intervention procedures are unavailable. We also assessed the impact of age and gender on in-hospital mortality. Patients and Consecutive patients with the diagnosis of AMI, admitted in our institution between 1999 and 2007, were included in this retrospective study. Of 2848 patients (mean age 61±11.3 years, 73.4% males) admitted with AMI, 292 (10.25%) patients died during in-hospital stay. The overall in-hospital mortality was 12.3% for women and 9.5% for men (P<.05). Women were significantly older than men (64.2±11 years vs 59.7±11.8 years, P<.05). Mean length of stay was 12.0±94 for women and 10.7±7.6 for men. From 1999 to 2007 there was an increase in the age of patients with AMI but the mortality rate remained stable.Compared to developed countries, patients with AMI in Kosovo present at an earlier age but have a higher mortality rate. Women with AMI had a significantly higher in-hospital mortality rate than men. The lack of percutaneous coronary intervention procedures in AMI patients may have contributed to the high in-hospital mortality in our population (Author).

  1. Vitamin D Deficiency in Iran: A Multi-center Study among Different Urban Areas

    Directory of Open Access Journals (Sweden)

    R Heshmat

    2008-11-01

    Full Text Available "nBackground: Recent studies have reported different prevalence of vitamin D deficiency in different sex and age groups in de­veloping countries. In the present survey, we elucidated the prevalence of vitamin D deficiency in a multi-center study among Iranian population. "nMethods: In a random cluster sample of healthy men and women (ranged 20 to 69 years old, a number of 5232 subjects from five urban metropolitans' cities (Tehran, Tabriz, Mashhad, Shiraz and Booshehr were recruited in 2001. Fasting blood sam­ple was taken from participants and sent to the laboratory for measurement of 25-hydroxy vitamin D level. Meta-analy­sis was performed using fixed effect method for estimation of vitamin D deficiency prevalence in a national level.      "nResults: Moderate to severe vitamin D deficiency was estimated in urban areas (except for Booshehr because of its heterogene­ity equal to 47.2, 45.7 and 44.2% in age groups of <50, 50-60 and 60≤ years, respectively among men and 54.2, 41.2 and 37.5 percent among women in the same age groups. The highest prevalence of moderate to severe vitamin D defi­ciency in men was observed in Tehran. Mashhad and Booshehr had also the lowest prevalence of moderate to severe vita­min D deficiency among men and women."nConclusion: Iran is a country with high prevalence of moderate to severe vitamin D deficiency and the prevalence of this defi­ciency is more evident in Tehran, capital of Iran. Therefore, consideration of main predictors for vitamin D deficiency in all age groups especially in Tehran is recommended.   

  2. Differences in cardiovascular disease risk factors by weight history: the Aerobics Center Longitudinal Study.

    Science.gov (United States)

    Truesdale, Kimberly P; Stevens, June; Cai, Jianwen

    2011-10-01

    The objective of this study was to compare cardiovascular disease (CVD) risk factor levels in adults with a history of weight loss to levels in adults who did not lose weight, after both groups subsequently experienced an approximate 1-year interval of weight maintenance. Extant data from the Aerobics Center Longitudinal Study (ACLS) were used to identify 5,151 adults who were weight maintainers (maintained weight within ± 3.0% over two consecutive periods of ~1 year) or weight-loss maintainers (lost >3.0- <5.0% or ≥ 5.0% of body weight in the first interval and maintained that loss in the second interval). Mixed models regression was used to accommodate repeated measures and adjust for gender, age, smoking, cardiorespiratory fitness, decade of clinic visit, interval length, and BMI at the time of risk factor measurement. Coefficients from the model were used to calculate the adjusted risk factor levels in the three groups. Differences in total cholesterol (-3.8 mg/dl, 95% confidence interval: -5.5, -2.0), low-density lipoprotein (LDL) cholesterol (-3.0 mg/dl, confidence interval: -4.8, -1.1), triglycerides (-6.1 mg/dl, confidence interval: -10.6, -1.7) and diastolic blood pressure (-0.8 mg/dl, confidence interval: -1.4, -0.3) indicated that levels were slightly more favorable in the ≥ 5.0% weight-loss maintenance group than weight maintenance group. Levels were similar for glucose, high-density lipoprotein (HDL) cholesterol and systolic blood pressure. This work indicates that, when adjusted for covariates including current BMI, adults with a history of weight loss may have CVD risk factors to levels as good, or perhaps even better than, those observed in adults who maintain their weight. PMID:21394090

  3. Cardiorespiratory fitness and digestive cancer mortality: findings from the aerobics center longitudinal study.

    Science.gov (United States)

    Peel, J Brent; Sui, Xuemei; Matthews, Charles E; Adams, Swann A; Hébert, James R; Hardin, James W; Church, Timothy S; Blair, Steven N

    2009-04-01

    Although higher levels of physical activity are inversely associated with risk of colon cancer, few prospective studies have evaluated overall digestive system cancer mortality in relation to cardiorespiratory fitness (CRF). The authors examined this association among 38,801 men ages 20 to 88 years who performed a maximal treadmill exercise test at baseline in the Aerobics Center Longitudinal Study (Dallas, TX) during 1974 to 2003. Mortality was assessed over 29 years of follow-up (1974-2003). Two hundred eighty-three digestive system cancer deaths occurred during a mean 17 years of observation. Age-adjusted mortality rates per 10,000 person-years according to low, moderate, and high CRF groups were 6.8, 4.0, and 3.3 for digestive system cancer (P(trend) < 0.001). After adjustment for age, examination year, body mass index, smoking, drinking, family history of cancer, personal history of diabetes, hazard ratios (95% confidence intervals) for overall digestive cancer deaths for those in the middle and upper 40% of the distribution of CRF relative to those in the lowest 20% were 0.66 (0.49-0.88) and 0.56 (0.40-0.80), respectively. Being fit (the upper 80% of CRF) was associated with a lower risk of mortality from colon [0.61 (0.37-1.00)], colorectal [0.58 (0.37-0.92)], and liver cancer [0.28 (0.11-0.72)] compared with being unfit (the lowest 20% of CRF). These findings support a protective role of CRF against total digestive tract, colorectal, and liver cancer deaths in men. PMID:19293313

  4. Cardiorespiratory fitness and digestive cancer mortality: findings from the Aerobics Center Longitudinal Study (ACLS)

    Science.gov (United States)

    Peel, J. Brent; Sui, Xuemei; Matthews, Charles E.; Adams, Swann A.; Hébert, James R.; Hardin, James W.; Church, Timothy S.; Blair, Steven N.

    2009-01-01

    Although higher levels of physical activity are inversely associated with risk of colon cancer, few prospective studies have evaluated overall digestive system cancer mortality in relation to cardiorespiratory fitness (CRF). The authors examined this association among 38,801 men aged 20−88 years and who performed a maximal treadmill exercise test at baseline in the Aerobics Center Longitudinal Study (Dallas, Texas) during 1974−2003. Mortality was assessed over 29 years of follow-up (1974−2003). 283 digestive system cancer deaths occurred during a mean 17-year of observation. Age-adjusted mortality rates per 10,000 person-yrs according to low, moderate, and high CRF groups were 6.8, 4.0, and 3.3 for digestive system cancer (trend p < 0.001). After adjustment for age, examination year, body mass index, smoking, drinking, family history of cancer, personal history of diabetes, hazard ratios for overall digestive cancer deaths (95% confidence interval) for those in the middle and upper 40% of the distribution of CRF relative to those in the lowest 20% were 0.66 (0.49, 0.88) and 0.56 (0.40, 0.80), respectively. Being fit (the upper 80% of CRF) was associated with a lower risk of mortality from colon (0.61 [0.37, 1.00]), colorectal (0.58 [0.37, 0.92]), and liver cancer (0.28 [0.11, 0.72]), compared with being unfit (the lowest 20% of CRF). These findings support a protective role of CRF against total digestive tract, colorectal, and liver cancer deaths in men. PMID:19293313

  5. IT Professionals Awareness: Green IT International Comparison Study

    Directory of Open Access Journals (Sweden)

    Nathalia Devina Widjaja

    2011-03-01

    Full Text Available Global warming and other environmental issues such as energy and resource constraint are becoming the world's major concerns and need to be solved. Information Technology (IT is perceived as an enabler to resolve those problems and bring greater efficiency. This concept is known as Green IT which covers energy conservation by IT and energy conservation of IT. It is important to analyse the awareness of IT professionals about Green IT in order to measure whether they are ready to implement a Green IT strategy. Many countries have already applied Green IT initiatives to reduce carbon emissions. Awareness of Green IT has been measured in many countries, except Indonesia, which has committed to reduce its carbon emissions by 26% in 2020. Green IT should be one of the potential enablers to achieve that goal. This paper provides a preliminary insight into Green IT awareness among Indonesian IT professionals and shows a comparison between attitude and awareness levels of other countries. Some recommendations will be discussed in order to increase the awareness and reduce the inhibiting factors that influence it. The current findings suggest that although IT professionals in Indonesia have already some concerns about climate change and the power consumption of IT, there is still a lack of implementation and action dimensions.

  6. Risperidone in Children and Adolescents with Conduct Disorder: A Single-Center, Open-Label Study

    Science.gov (United States)

    Ercan, Eyüp Sabri; Kutlu, Ayşe; Çıkoğlu, Sibel; Veznedaroğlu, Baybars; Erermiş, Serpil; Varan, Azmi

    2003-01-01

    Background: Risperidone is one of the most commonly used atypical antipsychotic drugs in the treatment of children and adolescents. However, the data about its use in children and adolescents with conduct disorder (CD) are limited. Objective: The aim of this study was to investigate the effectiveness and tolerability of risperidone in controlling major symptoms of CD in children and adolescents diagnosed with attention deficit hyperactivity disorder (ADHD), oppositional defiant disorder (ODD), and severe CD. Methods: Children and adolescents were eligible for this single-center, open-label study if they met the Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (DSM-IV) diagnostic criteria for ADHD and ODD and also were diagnosed with severe CD. The patients were treated with risperidone in an open-label fashion for 8 weeks, starting at a daily dosage of 0.25 mg or 0.5 mg (depending on their body weight) in 2 divided doses. Results: The study population comprised 21 children and adolescents (17 boys, 4 girls) with a mean (SD) age of 10.8 (3.6) years. The mean (SD) dosage of risperidone at the end of 8 weeks of treatment was 1.27 (0.42) mg/d (range, 0.75–2.0 mg/d). On the basis of the global improvement subscale of the Clinical Global Impression scale, 16 of 20 patients (80%) were classified as responders. Significant improvements were observed after risperidone treatment in the inattention, hyperactivity/impulsivity, ODD, and CD subscales of the Turgay DSM-IV–Based Child and Adolescent Behavior Disorders Screening and Rating Scale (parent and teacher forms). No severe adverse events were reported. Conclusions: The results of this study are consistent with previous findings and suggest that risperidone may be an effective and well-tolerated atypical antipsychotic drug for the treatment of children and adolescents with CD. However, further studies, particularly placebo-controlled and double-blinded, are needed to better define the clinical use

  7. A single-center study evaluating the effect of the controlled adverse environment (CAEsm model on tear film stability

    Directory of Open Access Journals (Sweden)

    Abelson R

    2012-11-01

    Full Text Available Richard Abelson,1,2 Keith J Lane,3 John Rodriguez,3 Patrick Johnston,3 Endri Angjeli,3 George Ousler,3 Douglas Montgomery11School of Computing, Informatics, and Decision Systems Engineering, Arizona State University, 2Statistics and Data Corporation, Tempe, AZ; 3Ora, Inc, Andover, MA, USAPurpose: To investigate use of an improved ocular tear film analysis protocol (OPI 2.0 in the Controlled Adverse Environment (CAESM model of dry eye disease, and to examine the utility of new metrics in the identification of subpopulations of dry eye patients.Methods: Thirty-three dry eye subjects completed a single-center, single-visit, pilot CAE study. The primary endpoint was mean break-up area (MBA as assessed by the OPI 2.0 system. Secondary endpoints included corneal fluorescein staining, tear film break-up time, and OPI 2.0 system measurements. Subjects were also asked to rate their ocular discomfort throughout the CAE. Dry eye endpoints were measured at baseline, immediately following a 90-minute CAE exposure, and again 30 minutes after exposure.Results: The post-CAE measurements of MBA showed a statistically significant decrease from the baseline measurements. The decrease was relatively specific to those patients with moderate to severe dry eye, as measured by baseline MBA. Secondary endpoints including palpebral fissure size, corneal staining, and redness, also showed significant changes when pre- and post-CAE measurements were compared. A correlation analysis identified specific associations between MBA, blink rate, and palpebral fissure size. Comparison of MBA responses allowed us to identify subpopulations of subjects who exhibited different compensatory mechanisms in response to CAE challenge. Of note, none of the measures of tear film break-up time showed statistically significant changes or correlations in pre-, versus post-CAE measures.Conclusion: This pilot study confirms that the tear film metric MBA can detect changes in the ocular surface

  8. Independent and joint effects of sedentary time and cardiorespiratory fitness on all-cause mortality: the Cooper Center Longitudinal Study

    Science.gov (United States)

    Shuval, Kerem; Finley, Carrie E; Barlow, Carolyn E; Nguyen, Binh T; Njike, Valentine Y; Pettee Gabriel, Kelley

    2015-01-01

    Objectives To examine the independent and joint effects of sedentary time and cardiorespiratory fitness (fitness) on all-cause mortality. Design, setting, participants A prospective study of 3141 Cooper Center Longitudinal Study participants. Participants provided information on television (TV) viewing and car time in 1982 and completed a maximal exercise test during a 1-year time frame; they were then followed until mortality or through 2010. TV viewing, car time, total sedentary time and fitness were the primary exposures and all-cause mortality was the outcome. The relationship between the exposures and outcome was examined utilising Cox proportional hazard models. Results A total of 581 deaths occurred over a median follow-up period of 28.7 years (SD=4.4). At baseline, participants’ mean age was 45.0 years (SD=9.6), 86.5% were men and their mean body mass index was 24.6 (SD=3.0). Multivariable analyses revealed a significant linear relationship between increased fitness and lower mortality risk, even while adjusting for total sedentary time and covariates (p=0.02). The effects of total sedentary time on increased mortality risk did not quite reach statistical significance once fitness and covariates were adjusted for (p=0.05). When examining this relationship categorically, in comparison to the reference category (≤10 h/week), being sedentary for ≥23 h weekly increased mortality risk by 29% without controlling for fitness (HR=1.29, 95% CI 1.03 to 1.63); however, once fitness and covariates were taken into account this relationship did not reach statistical significance (HR=1.20, 95% CI 0.95 to 1.51). Moreover, spending >10 h in the car weekly significantly increased mortality risk by 27% in the fully adjusted model. The association between TV viewing and mortality was not significant. Conclusions The relationship between total sedentary time and higher mortality risk is less pronounced when fitness is taken into account. Increased car time, but

  9. Fundamental study of inter-scanner difference for a multi-center study in brain positron emission tomography

    International Nuclear Information System (INIS)

    We showed scanner dependence of brain 18F-FDG and 11C-PiB images by using phantom examination with nine kinds of positron emission tomography (PET) scanners. We used two types of phantoms, cylindrical phantom with 15 cm inside diameter and three-dimensional (3D) brain phantom, and we set the body phantom on the bed to examine the effect of scatter and random coefficients from outside of the axial field of view (AFOV). Radioactivity and distance of the two phantoms were determined by a pilot study to obtain a condition similar to the clinical study. Axial uniformity was evaluated by circular region of interest (ROI) of 12 cm diameter, set in the center of the reconstruction image of the cylindrical phantom. As a result, the standardized uptake value (SUV) was lower than the true value in some scanners, and there was a scanner in which the axial uniformity was deteriorated by high radioactivity outside the AFOV. In the cylindrical phantom, the axial uniformity of the scanner was improved using the new dead-time correction method; however, it was not improved in the 3D brain phantom. Quality-controlled PET scanners are important to maintain constant levels for multicenter studies. (author)

  10. New Whole-House Solutions Case Study: New Town Builders' Power of Zero Energy Center - Denver, Colorado

    Energy Technology Data Exchange (ETDEWEB)

    None

    2014-10-01

    New Town Builders, a builder of energy efficient homes in Denver, Colorado, offers a zero energy option for all the homes it builds. To attract a wide range of potential homebuyers to its energy efficient homes, New Town Builders created a "Power of Zero Energy Center" linked to its model home in the Stapleton community. This case study presents New Town Builders' marketing approach, which is targeted to appeal to homebuyers' emotions rather than overwhelming homebuyers with scientific details about the technology. The exhibits in the Power of Zero Energy Center focus on reduced energy expenses for the homeowner, improved occupant comfort, the reputation of the builder, and the lack of sacrificing the homebuyers' desired design features to achieve zero net energy in the home. This case study also contains customer and realtor testimonials related to the effectiveness of the Center in influencing homebuyers to purchase a zero energy home.

  11. Building America Case Study: New Town Builders' Power of Zero Energy Center, Denver, Colorado (Brochure)

    Energy Technology Data Exchange (ETDEWEB)

    2014-10-01

    New Town Builders, a builder of energy efficient homes in Denver, Colorado, offers a zero energy option for all the homes it builds. To attract a wide range of potential homebuyers to its energy efficient homes, New Town Builders created a 'Power of Zero Energy Center' linked to its model home in the Stapleton community of Denver. This case study presents New Town Builders' marketing approach, which is targeted to appeal to homebuyers' emotions rather than overwhelming homebuyers with scientific details about the technology. The exhibits in the Power of Zero Energy Center focus on reduced energy expenses for the homeowner, improved occupant comfort, the reputation of the builder, and the lack of sacrificing the homebuyers' desired design features to achieve zero net energy in the home. The case study also contains customer and realtor testimonials related to the effectiveness of the Center in influencing homebuyers to purchase a zero energy home.

  12. Comparison of Acarbose and Voglibose in Diabetes Patients Who Are Inadequately Controlled with Basal Insulin Treatment: Randomized, Parallel, Open-Label, Active-Controlled Study

    OpenAIRE

    Lee, Mi Young; Choi, Dong Seop; Lee, Moon Kyu; Lee, Hyoung Woo; Park, Tae Sun; Kim, Doo Man; Chung, Choon Hee; Kim, Duk Kyu; Kim, In Joo; Jang, Hak Chul; Park, Yong Soo; Kwon, Hyuk Sang; Lee, Seung Hun; Shin, Hee Kang

    2013-01-01

    We studied the efficacy and safety of acarbose in comparison with voglibose in type 2 diabetes patients whose blood glucose levels were inadequately controlled with basal insulin alone or in combination with metformin (or a sulfonylurea). This study was a 24-week prospective, open-label, randomized, active-controlled multi-center study. Participants were randomized to receive either acarbose (n=59, 300 mg/day) or voglibose (n=62, 0.9 mg/day). The mean HbA1c at week 24 was significantly decrea...

  13. Lattice study on QCD-like theory with exact center symmetry

    Science.gov (United States)

    Iritani, Takumi; Itou, Etsuko; Misumi, Tatsuhiro

    2015-11-01

    We investigate QCD-like theory with exact center symmetry, with emphasis on the finite-temperature phase transition concerning center and chiral symmetries. On the lattice, we formulate center symmetric SU(3) gauge theory with three fundamental Wilson quarks by twisting quark boundary conditions in a compact direction ( Z 3-QCD model). We calculate the expectation value of Polyakov loop and the chiral condensate as a function of temperature on 163 × 4 and 203 × 4 lattices along the line of constant physics realizing m PS / m V = 0.70. We find out the first-order center phase transition, where the hysteresis of the magnitude of Polyakov loop exists depending on thermalization processes. We show that chiral condensate decreases around the critical temperature in a similar way to that of the standard three-flavor QCD, as it has the hysteresis in the same range as that of Polyakov loop. We also show that the flavor symmetry breaking due to the twisted boundary condition gets qualitatively manifest in the high-temperature phase. These results are consistent with the predictions based on the chiral effective model in the literature. Our approach could provide novel insights to the nonperturbative connection between the center and chiral properties.

  14. Prevalence and severity of anemia in pediatric hemodialysis patients, a single center study

    Directory of Open Access Journals (Sweden)

    Afshin Azhir

    2006-12-01

    Full Text Available BACKGROUNDS: This study was conducted to determine the prevalence and severity of anemia in children and adolescents on chronic hemodialysis, and to identify independent predictors of anemia in children on hemodialysis. METHODS: This cross-sectional study was performed between September 2005 and January 2006. The study population consisted of 25 patients aged 7−20 years on chronic hemodialysis from pediatric hemodialysis centers in Isfahan. RESULTS: A total of 22 (88% patients had hemoglobin levels of <11 g/dL (anemic and 12 patients (48% had hemoglobin levels of <8 g/dL (severe anemia. The mean age of these patients was 15.5 ± 3.7 years. Mean time on chronic dialysis was 20.44 ± 15.25 months. Anemia was more common and more severe among children who were on dialysis for less than 6 months. There was an inverse relationship between the severity of anemia and duration of hemodialysis (P = 0.019, r = – 0.465. Nearly all patients were treated with erythropoietin, Children with more severe anemia received slightly higher dose of erythropoietin (P = 0.09, r = 0.202. There was a significant difference between serum albumin values in anemic patients and patients without anemia (P = 0.023. There was a correlation between serum albumin and hemoglobin level (r = 0.511, P = 0.01. Intact PTH levels were >200 pg/ml in 16 patients (66% and >400 pg/ml in 9 patients (37. 5%. There was a reverse correlation between intact PTH level >200 pg/ml and hemoglobin level (r = -0.505, P = 0.046. CONCLUSIONS: The prevalence of anemia in hemodialysis children in Isfahan appears to be higher than that reported in the other studies in spite of extensive use of rHuEPO and iron supplementation. We found this to be especially true for patients new on hemodialysis (less than 6 months and in those with low albumin and severe hyperparathyroidism. KEY WORDS: Hemodialysis, anemia, children.

  15. Modality comparison for small animal radiotherapy: A simulation study

    Energy Technology Data Exchange (ETDEWEB)

    Bazalova, Magdalena, E-mail: bazalova@stanford.edu; Nelson, Geoff; Noll, John M.; Graves, Edward E. [Department of Radiation Oncology, Molecular Imaging Program at Stanford, Stanford University, Stanford, California 94305 (United States)

    2014-01-15

    Purpose: Small animal radiation therapy has advanced significantly in recent years. Whereas in the past dose was delivered using a single beam and a lead shield for sparing of healthy tissue, conformal doses can be now delivered using more complex dedicated small animal radiotherapy systems with image guidance. The goal of this paper is to investigate dose distributions for three small animal radiation treatment modalities. Methods: This paper presents a comparison of dose distributions generated by the three approaches—a single-field irradiator with a 200 kV beam and no image guidance, a small animal image-guided conformal system based on a modified microCT scanner with a 120 kV beam developed at Stanford University, and a dedicated conformal system, SARRP, using a 220 kV beam developed at Johns Hopkins University. The authors present a comparison of treatment plans for the three modalities using two cases: a mouse with a subcutaneous tumor and a mouse with a spontaneous lung tumor. A 5 Gy target dose was calculated using the EGSnrc Monte Carlo codes. Results: All treatment modalities generated similar dose distributions for the subcutaneous tumor case, with the highest mean dose to the ipsilateral lung and bones in the single-field plan (0.4 and 0.4 Gy) compared to the microCT (0.1 and 0.2 Gy) and SARRP (0.1 and 0.3 Gy) plans. The lung case demonstrated that due to the nine-beam arrangements in the conformal plans, the mean doses to the ipsilateral lung, spinal cord, and bones were significantly lower in the microCT plan (2.0, 0.4, and 1.9 Gy) and the SARRP plan (1.5, 0.5, and 1.8 Gy) than in single-field irradiator plan (4.5, 3.8, and 3.3 Gy). Similarly, the mean doses to the contralateral lung and the heart were lowest in the microCT plan (1.5 and 2.0 Gy), followed by the SARRP plan (1.7 and 2.2 Gy), and they were highest in the single-field plan (2.5 and 2.4 Gy). For both cases, dose uniformity was greatest in the single-field irradiator plan followed by

  16. Hotel Classification Systems: A Comparison of International Case Studies

    Directory of Open Access Journals (Sweden)

    Roberta Minazzi,

    2010-12-01

    Full Text Available Over the last few decades we have witnessed an increasing interest of scholars andespecially operators in service quality in the lodging business. Firstly, it is important to observe thatthe diverseness of the hospitality industry also affects the classification of hotel quality. We canactually find many programmes, classifications and seals of quality promoted by public authoritiesand private companies that create confusion in the consumer perceptions of hotel quality. Moreover,new electronic distribution channels and their ratings are becoming a new way to gather informationabout a hotel and its quality. Secondly, a point that can cause complications is that different countriesand regions can choose differing approaches depending on the features of the classification (numberof levels, symbols used, etc. and the nature of the programme (public, private. Considering theseassumptions and the recent changes in the Italian hotel classification system, this paper aims toanalyse the situation in Italy, underlining both its positive and negative aspects and comparing it withother European and North American cases. Based on a review of literature and tourism laws as wellas personal interviews with public authorities and exponents of the private sectors, we were able toidentify critical issues and trends in hotel classification systems. The comparison of case studiesshows a heterogeneous situation. Points in common are the scale and the symbol used but, if weanalyse the requirements of each category, we discover very different circumstances, also sometimesin the same country. A future European classification system could be possible only after astandardization of minimum requirements and criteria at a national level. In this situation brands andonline consumers’ feedbacks become even more considered by the customers in the hospitalityindustry.

  17. Interpersonal Risk Profiles for Youth Depression: A Person-Centered, Multi-Wave, Longitudinal Study.

    Science.gov (United States)

    Cohen, Joseph R; Spiro, Carolyn N; Young, Jami F; Gibb, Brandon E; Hankin, Benjamin L; Abela, John R Z

    2015-11-01

    Independent lines of research illustrate the benefits of social support and the negative consequences of conflict and emotional neglect across family and peer contexts with regard to depression. However, few studies have simultaneously examined negative and positive interactions across relationships. We sought to address this gap in the literature by utilizing a person-centered approach to a) understand empirical, interpersonal profiles in youth and b) understand how these profiles confer risk for prospective depression. At baseline, 678 youth (380 females; 298 males) 3rd (N = 208), 6th (N = 245), and 9th graders (N = 225) completed self-report measures for self-perceived negative/positive relationships across family and peers, anxiety symptoms, and depressive symptoms in a laboratory setting. Next, youth were called every 3 months for 18 months and completed self-report depressive and anxiety symptom forms. Two-step cluster analyses suggested that children and adolescents fell into one of three interpersonal clusters, labeled: Support, Conflict, and Neglect. Our analyses supported a convergence model in which the quality of relationship was consistent across peers and family. Furthermore, mixed-level modeling (MLM) findings demonstrated that youth in the Conflict cluster were at increased risk for prospective depressive symptoms, while the Supported and Neglected profiles demonstrated similar symptom levels. Findings were unique to depressive symptoms and consistent across sex and age. Conflict seemed to uniquely confer risk for depression as findings concerning anxiety were not significant. These findings influence our interpersonal conceptualization of depression as well as clinical implications for how to assess and treat depression in youth. PMID:25907029

  18. Pedestrian Planning in City Centers: a Study of Guimarães and Braga

    Directory of Open Access Journals (Sweden)

    Khan Rubayet Rahaman

    2010-04-01

    Full Text Available People are walking in cities for different reasons. Some walkers walk for going to work, some are walking for shopping and some are for leisure during day and night hours. Medium sized cities like Braga and Guimarães in Portugal are depending on car for even shorter trips up to 2 kilometers. However, the walkways are allowing people to walk in convenient and safe way including late night environment. The pedestrians feel troublesome to walk on the footpaths because of illegal parking and discontinuation of walkways. Municipality transport plans and master plans do not incorporate pedestrians as a major component. But this egress mode of transportation is very important in medium sized city centers like Guimarães and Braga for the people to enjoy city centers’ activities. This paper focuses on the types of walkers who use the walkways on a regular basis. Usually, people are feeling comfortable to walk when they go to clubs and bars in a group in these small cities especially after work. This paper again tries to focus the varieties of problems on walkways and to present policies that can improve the situation. Municipal master plan and transportation plan have been studied carefully to see the provisions of pedestrian planning options. Field surveys have been conducted both in form of questionnaire and observation during the end of 2009 and results show different patterns of pedestrian behavior as well as evidence that people get different experiences with problems while walking on the walkways in both surveyed towns. Considering the issues of sustainable mobility, this paper also tries to suggest policies to motivate more people to walk especially in the medium-sized cities of Portugal.

  19. Radionuclide Emission Estimation for the Center for Advanced Energy Studies (CAES)

    International Nuclear Information System (INIS)

    An Radiological Safety Analysis Computer Program (RSAC)-7 model dose assessment was performed to evaluate maximum Center for Advanced Energy Studies (CAES) boundary effective dose equivalent (EDE, in mrem/yr) for potential individual releases of radionuclides from the facility. The CAES is a public/private partnership between the State of Idaho and its academic research institutions, the federal government through the U.S. Department of Energy (DOE), and the Idaho National Laboratory (INL) managed by the Battelle Energy Alliance (BEA). CAES serves to advance energy security for our nation by expanding educational opportunities at Idaho universities in energy-related areas, creating new capabilities within its member institutions, and delivering technological innovations leading to technology-based economic development for the intermountain region. CAES has developed a strategic plan (INL/EXT-07-12950) based on the balanced scorecard approach. At the present time it is unknown exactly what processes will be used in the facility in support of this strategic plan. What is known is that the Idaho State University (ISU) Radioactive Materials License (Nuclear Regulatory Commission (NRC) license 11-27380-01) is the basis for handling radioactive material in the facility. The material in this license is shared between the ISU campus and the CAES facility. There currently are no agreements in place to limit the amount of radioactive material at the CAES facility or what is done to the material in the facility. The scope of this analysis is a summary look at the basis dose for each radionuclide included under the license at a distance of 100, 500, and 1,000 m. Inhalation, ingestion and ground surface dose was evaluated using the NRC design basis guidelines. The results can be used to determine a sum of the fractions approach to facility safety. This sum of the fractions allows a facility threshold value (TV) to be established and potential activities to be evaluated against

  20. A comparative study on optical effects of E' center in quartz grains from loess and fault

    International Nuclear Information System (INIS)

    This paper reports several light exposure experiments of quartz grains from loess and fault. We found that the ionizing radiation-induced E' center's ESR signal intensities of the samples collected from either loess or fault could not be erased by exposure to sunlight and other artificial light sources, but the radiation-induced E' signals of quartz from loess were obviously increased after exposure to sunlight and ultraviolet lamp. With the help of crystal defect theory, we give an explanation for the increase of E' center ESR signals in quartz grains from loess, while E' center signals in quartz from fault are strictly on the same level corresponding to the exposure to sunlight and other light sources. (author)

  1. The costs in provision of haemodialysis in a developing country: A multi-centered study

    Directory of Open Access Journals (Sweden)

    Wijesinghe Aruna

    2011-09-01

    % reduction. Conclusions This multi-centered study demonstrated that the costs of haemodialysis in a developing country remained significantly lower compared to developed countries. However, it still places a significant burden on the health care sector, whilst possibility of further cost reduction exists.

  2. Results from a Case Study Investigation on the Adoption of Learner-Centered Strategies in Introductory Astronomy

    Science.gov (United States)

    Bailey, Janelle M.; Nagamine, K.

    2008-05-01

    Recent research in science education suggests that learner-centered instructional strategies can promote more learning than traditional teacher-based strategies such as lecture. However, the adoption of such strategies by instructors can elicit many concerns, including, for example, concerns of increased time requirements for preparation and grading, reduced content coverage, reactions of students and colleagues, and, of course, student achievement. Ethan, an astronomy instructor early in his career, recently adopted learner-centered strategies into his introductory course for nonscience majors on stars and galaxies. He shared the concerns listed above, but after receiving training in learner-centered strategies from the Center for Astronomy Education and support from an experienced colleague while implementing the changes for the first time, Ethan's overall reaction was a positive one. Although the preparation time was somewhat higher than would have been required had he repeated his previous semester, Ethan felt that it was worth it to move away from lecture-only style and to incorporate learner-centered strategies into his course. For him, it simply felt more gratifying when he walked out of the classroom after using learner-centered methods than it had when he used only lecture. He also felt that many students learned more than those in previous lecture-based course offerings, and that their increased active participation during the class was a constructive change. In fact, average exam scores were comparable or higher than two previous semesters, as were student evaluations. Overall, Ethan felt that the integration of learner-centered strategies was well worth the time and effort, as evidenced by his statement, "I'll never go back to lecture-only again!" This project is supported by the University of Nevada, Las Vegas Division of Research and Graduate Studies.

  3. A study of characteristics of intercity transportation systems. Phase 1: Definition of transportation comparison methodology

    Science.gov (United States)

    English, J. M.; Smith, J. L.; Lifson, M. W.

    1978-01-01

    The objectives of this study are: (1) to determine a unified methodological framework for the comparison of intercity passenger and freight transportation systems; (2) to review the attributes of existing and future transportation systems for the purpose of establishing measures of comparison. These objectives were made more specific to include: (1) development of a methodology for comparing long term transportation trends arising from implementation of various R&D programs; (2) definition of value functions and attribute weightings needed for further transportation goals.

  4. TRADITIONAL AND DIGITAL AUTORADIOGRAPHY TECHNIQUES: A COMPARISON STUDY

    Energy Technology Data Exchange (ETDEWEB)

    Gibbs, K; Carol Kestin, C

    2006-08-29

    digital imaging technology to replace the current method. The purpose of this report is to provide a description of the current method, a description of the equipment for the new digital method and its capabilities, and a direct comparison of the results between the existing and proposed techniques. The advantages of the digital method is the reduced time of exposure (from 24 hours to around 10 minutes), increased sample throughput, reduced rework of samples, and the elimination of chemical processing.

  5. Structural alphabets for protein structure classification: a comparison study.

    Science.gov (United States)

    Le, Quan; Pollastri, Gianluca; Koehl, Patrice

    2009-03-27

    Finding structural similarities between proteins often helps reveal shared functionality, which otherwise might not be detected by native sequence information alone. Such similarity is usually detected and quantified by protein structure alignment. Determining the optimal alignment between two protein structures, however, remains a hard problem. An alternative approach is to approximate each three-dimensional protein structure using a sequence of motifs derived from a structural alphabet. Using this approach, structure comparison is performed by comparing the corresponding motif sequences or structural sequences. In this article, we measure the performance of such alphabets in the context of the protein structure classification problem. We consider both local and global structural sequences. Each letter of a local structural sequence corresponds to the best matching fragment to the corresponding local segment of the protein structure. The global structural sequence is designed to generate the best possible complete chain that matches the full protein structure. We use an alphabet of 20 letters, corresponding to a library of 20 motifs or protein fragments having four residues. We show that the global structural sequences approximate well the native structures of proteins, with an average coordinate root mean square of 0.69 A over 2225 test proteins. The approximation is best for all alpha-proteins, while relatively poorer for all beta-proteins. We then test the performance of four different sequence representations of proteins (their native sequence, the sequence of their secondary-structure elements, and the local and global structural sequences based on our fragment library) with different classifiers in their ability to classify proteins that belong to five distinct folds of CATH. Without surprise, the primary sequence alone performs poorly as a structure classifier. We show that addition of either secondary-structure information or local information from the

  6. A Comparison Study on the Chinese and Western Music Aesthetics

    Institute of Scientific and Technical Information of China (English)

    2007-01-01

    <正>Specialty:Literary Theory Music Aesthetics is a basic and theoretical subject,which studies the basic rules of music,and especially regards the study of the particularity of music and aesthetics as its general goal.Belonging to liberal arts,music aesthetics is the same as other

  7. The Obstacles against Nurse-Family Communication in Family-Centered Care in Neonatal Intensive Care Unit: a Qualitative Study

    OpenAIRE

    Zahra Hadian Shirazi; Farkhondeh Sharif; Mahnaz Rakhshan; Narjes Pishva; Faezeh Jahanpour

    2015-01-01

    Introduction: Communication is one of the key principles in Family-Centered Care (FCC). Studies have shown some drawbacks in communication between families and nurses. Therefore, the present study aimed to recognize the obstacles against nurse-family communication in FCC in Neonatal Intensive Care Unit (NICU). Methods: This qualitative study was conducted on 8 staff nurses in 2 NICUs affiliated to Shiraz University of Medical Sciences selected through purposive sampling. The data were collect...

  8. Center for Peace Studies and Violence Prevention, Department of Engineering Science and Mechanics present exhibit by local artist

    OpenAIRE

    Owczarski, Mark

    2010-01-01

    Virginia Tech's Center for Peace Studies and Violence Prevention and the Department of Engineering Science and Mechanics in the College of Engineering announce the next installment in an ongoing series of art exhibits to be displayed in the second floor west wing hallway of Norris Hall.

  9. A Study of Counseling Center Hiring Practices: What Does It Take for a Woman to be Hired?

    Science.gov (United States)

    Kitchener, Karen Strohm; And Others

    1975-01-01

    This study examined the effect of raters' level of self-acceptance on the ratings of three candidate types: a "traditional" woman, a "feminist", and a candidate with sex unspecified. Subjects were 81 male counseling center directors. Results reveal that subjects with higher self-acceptance were more likely to evaluate all candidates as more…

  10. A Study of the Leadership Styles of Campus Based Women's Centers in Higher Education in the Southeast United States

    Science.gov (United States)

    DeLuz, Nikki

    2013-01-01

    This study examined the organizational and institutional variables that influence the leadership styles of directors of campus-based women's centers at public and private four-year universities in the southeast United States. The researcher examined the leadership frame (or frames), as measured by Bolman and Deal's (1990) Leadership Orientations…

  11. Predicting sickness impact profile at six months after stroke: further results from the European multi-center CERISE study

    NARCIS (Netherlands)

    Stummer, C.A.; Verheyden, G.; Putman, K.; Jenni, W.; Schupp, W.; Wit, L. De

    2015-01-01

    PURPOSE: To develop prognostic models and equations for predicting participation at six months after stroke. METHODS: This European prospective cohort study recruited 532 consecutive patients from four rehabilitation centers. Participation was assessed at six months after stroke with the Sickness Im

  12. Identifying the HIV Testing Beliefs of Healthcare Provider Staff at a University Student Health Center: An Exploratory Study

    Science.gov (United States)

    Harris, Cornelia A.

    2012-01-01

    This research project examined the views and perceptions of healthcare provider staff regarding HIV testing and the implementation of HIV testing as a routine part of medical practice in a university student health center at a Historically Black College or University (HBCU). This study further explored whether healthcare provider staff promoted…

  13. Tolerability of Shortened Infliximab Infusion Times in Patients With Inflammatory Bowel Diseases : A Single-Center Cohort Study

    NARCIS (Netherlands)

    Breynaert, Christine; Ferrante, Marc; Fidder, Herma; Van Steen, Kristel; Noman, Maja; Ballet, Vera; Vermeire, Severine; Rutgeerts, Paul; Van Assche, Gert

    2011-01-01

    OBJECTIVES: Scheduled maintenance therapy with infliximab decreases the risk of infusion reactions. Many centers have accelerated infusion times to 1 h in selected patients who tolerate 5 mg/kg infliximab infusions. The aim of this study was to compare the tolerability of 1-h and 2-h infliximab infu

  14. ERGONOMIC ASPECTS IN THE PLANNING AND EXECUTION OF PROJECTS: A TEXTILE PRODUCTS DISTRIBUTION CENTER PROJECT CASE STUDY

    Directory of Open Access Journals (Sweden)

    Emerson Lourenço da Silva

    2013-01-01

    Full Text Available The planning and execution phases of a distribution center project of a large textile industry was made, evaluating the ergonomic aspects related to the operations to be performed in the facility and staff anthropometric data. The ergonomic collaborative analysis of the tasks associated with the method of movement plotting, guided the planning of the picking, manual induction and order consolidation areas from the distribution center. Using this methodology, it was possible to obtain a proper ergonomically project planning and execution of the three studied areas.

  15. A Study to Increase the Quality of Financial and Operational Performances of Call Centers using Speech Technology

    Directory of Open Access Journals (Sweden)

    R. Manoharan

    2015-04-01

    Full Text Available Everyone knows technology and automation are not the solutions to every business problem. But when used for the right reasons-and deployed and maintained wisely-speech based contact center applications can be good for the customers as well as business, if the money and time spent to implement and maintain contact center business. Speech based application is an experimental conversational speech system. Experience with redesigning the system based on user feedback indicates the importance of adhering to conversational conventions when designing speech interfaces, particularly in the face of speech recognition errors. Study results also suggest that speech-only interfaces should be designed from scratch rather than directly translated from their graphical counterparts. This paper examines a set of challenging issues facing speech interface designers and describes approaches to address some of these challenges. Let us highlight some of the specific constrains involved in this process of using speech technology in the main stream of business in general and of a Call Center specific and being resolved through the Industrial process. So the real challenge is “Developing a new Business Process Model for an Industry application, for a Call Center specific. And that paves the way to design and analyze the “Financial and Operational performance of call centers through the business process model using speech technology”.

  16. Transplant Nurses' Work Environment: A Cross-Sectional Multi-Center Study.

    Science.gov (United States)

    Kugler, Christiane; Akca, Selda; Einhorn, Ina; Rebafka, Anne; Russell, Cynthia L

    2016-01-01

    BACKGROUND Numerically, nurses represent the largest healthcare profession, thus setting norms for the quality and safety of direct patient care. Evidence of a global shortage of nurses in all clinical practice settings across different healthcare systems and countries has been documented. The aims of the present study were: (1) to assess work environments in a sample of German transplant nurses, and (2) to compare their statements with a US-based sample. MATERIAL AND METHODS In a cross-sectional study, 181 transplant nurses from 16 German transplant centers provided information on their work environments. The translated version of the Job Design (JD) and Job Satisfaction (JS) survey showed satisfactory internal consistency for the JD (0.78) and JS (0.93) subscales. German nurses' work environments were compared with 331 transplant nurses from the US. RESULTS The majority of transplant nurses were female (81.8%), 55.4% were age 21-40 years, and 78.1% were employed full-time. German (versus US) transplant nurses reported their job design to be best for 'skill varieties' (p≤0.0002), and worst for 'autonomy' (p≤0.01). Job satisfaction was best with 'opportunities for autonomy and growth' (p≤0.0001), and 'pay and benefits' (p≤0.0001) was lowest. A higher professional degree (OR 1.57; p≤0.03; 95% CI 1.19-2.86), and longer time in transplant (OR 1.24; p≤0.001; 95% CI 1.11-1.38) showed a positive impact on German transplant nurses' perceptions of 'job satisfaction'. Nurses with time-dependent working contracts perceived more stress negatively affecting job satisfaction (OR 1.13; p≤0.009; 95% CI 1.02-12.82). CONCLUSIONS German specialty nurses working in the field of solid organ transplantation rate their work environments with respect to job design and job satisfaction as satisfactory. Institutions' investment into satisfactory nurse work environments and specializing nurses might increase the quality of care, thus improving patient outcomes. PMID:27582230

  17. Presentation of 493 consecutive girls with idiopathic central precocious puberty: a single-center study.

    Directory of Open Access Journals (Sweden)

    Eloïse Giabicani

    Full Text Available BACKGROUND: Despite the number of reported data concerning idiopathic central precocious puberty (CPP in girls, major questions remain including its diagnosis, factors, and indications of gonadotropin releasing hormone (GnRH analog treatment. METHODS: A retrospective, single-center study was carried out on 493 girls with CPP. RESULTS: Eleven girls (2.2% were aged less than 3 years. Breast development was either isolated (Group 0, n = 99, or associated with one sign, pubic hair development, growth rate greater than 2 standard deviation score (SDS or bone age (BA >2 years above chronological age, (Group 1, n = 187, two signs (Group 2, n = 142 or three signs (Group 3, n = 65. The interval between onset of puberty and evaluation, body mass index (BMI SDS, plasma luteinising hormone (LH concentrations (basal and peak and LH/ follicle-stimulating hormone (FSH peak ratio after GnRH test, plasma estradiol and uterus length were significantly greater in Groups 2 and 3 than in Groups 0 and 1 respectively. 211 (42.8% patients were obese and/or had excessive weight gain during the year before puberty. Obese girls more often had BA advance of >2 years (p = 0.0004 and pubic hair development (p = 0.003 than the others. BMI did not correlate with LH or with LH/FSH peak ratio. Girls with familial history of early puberty (41.4% had greater frequencies of pubertal LH/FSH peak ratios (p = 0.02 than the others. During the 31 years of the study, there was no increase in the frequency of CPP or variation in its characteristics. CONCLUSION: Obesity is associated with a higher BA advance and higher frequency of pubic or axillary hair development but not with LH secretion, suggesting that obesity accelerates adrenarche but not the maturation of the hypothalamic-pituitary-ovarian axis. The LH/FSH peak ratio was more frequently pubertal in girls with a familial history of early puberty, suggesting that this maturation depends on genetic factors.

  18. Personality traits affect teaching performance of attending physicians: results of a multi-center observational study.

    Directory of Open Access Journals (Sweden)

    Renée A Scheepers

    Full Text Available BACKGROUND: Worldwide, attending physicians train residents to become competent providers of patient care. To assess adequate training, attending physicians are increasingly evaluated on their teaching performance. Research suggests that personality traits affect teaching performance, consistent with studied effects of personality traits on job performance and academic performance in medicine. However, up till date, research in clinical teaching practice did not use quantitative methods and did not account for specialty differences. We empirically studied the relationship of attending physicians' personality traits with their teaching performance across surgical and non-surgical specialties. METHOD: We conducted a survey across surgical and non-surgical specialties in eighteen medical centers in the Netherlands. Residents evaluated attending physicians' overall teaching performance, as well as the specific domains learning climate, professional attitude, communication, evaluation, and feedback, using the validated 21-item System for Evaluation of Teaching Qualities (SETQ. Attending physicians self-evaluated their personality traits on a 5-point scale using the validated 10-item Big Five Inventory (BFI, yielding the Five Factor model: extraversion, conscientiousness, neuroticism, agreeableness and openness. RESULTS: Overall, 622 (77% attending physicians and 549 (68% residents participated. Extraversion positively related to overall teaching performance (regression coefficient, B: 0.05, 95% CI: 0.01 to 0.10, P = 0.02. Openness was negatively associated with scores on feedback for surgical specialties only (B: -0.10, 95% CI: -0.15 to -0.05, P<0.001 and conscientiousness was positively related to evaluation of residents for non-surgical specialties only (B: 0.13, 95% CI: 0.03 to 0.22, p = 0.01. CONCLUSIONS: Extraverted attending physicians were consistently evaluated as better supervisors. Surgical attending physicians who display high levels of

  19. Center for Technology, Security, and Policy research faculty conduct study of New Madrid Seismic Zone

    OpenAIRE

    Micale, Barbara L.

    2010-01-01

    Theresa Jefferson and John Harrald, research faculty at the Virginia Tech Center for Technology, Security, and Policy in the National Capital Region recently completed a Federal Emergency Management Agency (FEMA)-funded research project to model the social impacts and disaster response requirements of a 7.7 magnitude catastrophic earthquake on the three segments of the New Madrid Seismic Zone.

  20. Usability Testing, User-Centered Design, and LibGuides Subject Guides: A Case Study

    Science.gov (United States)

    Sonsteby, Alec; DeJonghe, Jennifer

    2013-01-01

    Usability testing has become a routine way for many libraries to ensure that their Web presence is user-friendly and accessible. At the same time, popular subject guide creation systems, such as LibGuides, decentralize Web content creation and put authorship into the hands of librarians who may not be trained in user-centered design principles. At…

  1. Study of a conceptual nuclear-energy center at Green River, Utah: site-specific transportation

    International Nuclear Information System (INIS)

    The objective of the following report is to assess the adequacy of the local and regional transportation network for handling traffic, logistics, and the transport of major power plant components to the Utah Nuclear Energy Center (UNEC) Horse Bench site. The discussion is divided into four parts: (1) system requirements; (2) description of the existing transportation network; (3) evaluation; (4) summary and conclusions

  2. Lattice study on QCD-like theory with exact center symmetry

    CERN Document Server

    Iritani, Takumi; Misumi, Tatsuhiro

    2015-01-01

    We investigate QCD-like theory with exact center symmetry, with emphasis on the finite-temperature phase transition concerning center and chiral symmetries. On the lattice, we formulate center symmetric $SU(3)$ gauge theory with three fundamental Wilson quarks by twisting quark boundary conditions in a compact direction ($Z_3$-QCD model). We calculate the expectation value of Polyakov loop and the chiral condensate as a function of temperature on 16^3 x 4 and 20^3 x 4 lattices along the line of constant physics realizing $m_{PS}/m_{V}=0.70$. We find out the first-order center phase transition, where the hysteresis of the magnitude of Polyakov loop exists depending on thermalization processes. We show that chiral condensate decreases around the critical temperature in a similar way to that of the standard three-flavor QCD, as it has the hysteresis in the same range as that of Polyakov loop. We also show that the flavor symmetry breaking due to the twisted boundary condition gets qualitatively manifest in the h...

  3. Study of the Index System for Assessing Learner-Centered Online Courses

    Science.gov (United States)

    Li, Mei

    2015-01-01

    With the development of e-learning, the quality of web-based courses attracts extensive interest. This paper draws upon the results conducted amongst students enrolled in an online language course at a northern Chinese university. The design of the course aims to create the learner-centered environment: personalized learning environment,…

  4. Decentering Self in Leadership: Putting Community at the Center in Leadership Studies.

    Science.gov (United States)

    Hartman, Eric

    2016-06-01

    Although students' personal passions typically determine the issue addressed by service-learning leadership initiatives, this chapter advocates for a community-centered alternative. This in-depth exploration of a leadership development course series models a community-need driven project and explores the benefits for both community and student learning. PMID:27150906

  5. The Northwest Indiana Center for Data and Analysis: A Case Study of Academic Library Community Engagement

    Science.gov (United States)

    Sandberg, Scott; Morris, Cele; Sutherland, Timothy

    2013-01-01

    This paper details community engagement activity of an academic library coordinated within a broader university strategic plan. The Anderson Library at Indiana University Northwest (IU-Northwest) supports a service called the Northwest Indiana Center for Data and Analysis. Created in 1996 with funding made available from the Indiana University…

  6. Fighting Obsolescence in the Nuclear Power Industry. Motor Control Centers-solutions and Case Study

    Energy Technology Data Exchange (ETDEWEB)

    Portillo, J.; Torralba Piqueras, A.

    2014-07-01

    Motor Control Centers (MCCs) are vital to the operation and control of nuclear power plants. A significant and growing problem within the global nuclear industry is the aging of MCC components. Obsolescence of various components within the MCCs such as molded case circuit breakers, starters, relays, heaters, transformers, etc., are impacting the reliability of MCCs to perform their intended safety function. (Author)

  7. EPR study of charge compensation of chromium centers in the strontium titanate crystal

    Czech Academy of Sciences Publication Activity Database

    Badalyan, A. G.; Azamat, Dmitry; Babunts, R.A.; Neverova, E.V.; Dejneka, Alexandr; Trepakov, Vladimír; Jastrabík, Lubomír

    2013-01-01

    Roč. 55, č. 7 (2013), 1454-1458. ISSN 1063-7834 R&D Projects: GA ČR GAP108/12/1941 Institutional support: RVO:68378271 Keywords : EPR spectroscopy * SrTiO3:Cr crystal * chromium centers Subject RIV: BM - Solid Matter Physics ; Magnetism Impact factor: 0.782, year: 2013

  8. The first symposium of Research Center for Radiation Safety, NIRS. Perspective of future studies of radiation safety

    International Nuclear Information System (INIS)

    This paper summarizes presentations given in the title symposium, held at the Conference Room of National Institute of Radiological Sciences (NIRS) on November 29 and 30, 2001. Contained are Introductory remarks: Basic presentations concerning exposure dose in man; Environmental levels of radiation and radioactivity, environmental radon level and exposure dose, and radiation levels in the specific environment (like in the aircraft): Special lecture (biological effects given by space environment) concerning various needs for studies of radiation safety; Requirement for open investigations, from the view of utilization, research and development of atomic energy, from the clinical aspect, and from the epidemiological aspect: Special lecture (safety in utilization of atomic energy and radiation-Activities of Nuclear Safety Commission of Japan) concerning present state and perspective of studies of radiation safety; Safety of radiation and studies of biological effects of radiation-perspective, and radiation protection and radiation safety studies: Studies in the Research Center for Radiation Safety; Summary of studies in the center, studies of the biological effects of neutron beam, carcinogenesis by radiation and living environmental factors-complicated effects, and studies of hereditary effects: Panel discussion (future direction of studies of radiation safety for the purpose of the center's direction): and concluding remarks. (N.I.)

  9. Techno-economic benefits of radiation curing: a comparison studies

    International Nuclear Information System (INIS)

    In comparing radiation cure versus conventional heat cure systems, the factors are considered in this studies i.e. environmental laws - includes the future regulations concerning volatile organic emissions and waste disposal may weigh heavily in the decision

  10. Study Strategies Comparison and Self-Regulationin University Students

    OpenAIRE

    Irma Rosa Alvarado Guerrero; Zaira Vega Valero; María Luisa Cepeda Islas; Ana Elena Del Bosque Fuentes

    2014-01-01

    The main factors associated with academic performance are study strategies and self-regulation in university students, thus the objective of this paper is to compare two sample groups: those in a regular status and others under certain academic lag. The Study Strategies Inventory and Self-Regulation (IEEA) BY Castaneda was applied to 41 learners. It was observed that both groups need support to develop strategies for the four scales of the instrument: Information acquisition, memory resource ...

  11. Physical and biological studies with protons and HZE particles in a NASA supported research center in radiation health

    Science.gov (United States)

    Chatterjee, A.; Borak, T. H.

    2001-01-01

    NASA has established and supports a specialized center for research and training (NSCORT) to specifically address the potential deleterious effects of HZE particles on human health. The NSCORT in radiation health is a joint effort between Lawrence Berkeley National Laboratory (LBNL) and Colorado State University (CSU). The overall scope of research encompasses a broad range of subjects from microdosimetric studies to cellular and tissue responses to initial damage produced by highly energetic protons and heavy charged particles of the type found in galactic cosmic rays (GCR) spectrum. The objectives of the microdosimetry studies are to determine the response of Tissue Equivalent Proportional Counter (TEPC) to cosmic rays using ground based accelerators. This includes evaluation of energy loss due to the escape of high-energy delta rays and increased energy deposition due to the enhanced delta ray production in the wall of the detector. In this report major results are presented for 56Fe at 1000, 740, 600 and 400 MeV/nucleon. An assessment of DNA repair and early development of related chromosomal changes is extremely important to our overall understanding of enhanced biological effectiveness of high LET particle radiation. Results are presented with respect to the fidelity of the rejoining of double strand breaks and the implications of misrejoining. The relationship between molecular and cytogenetic measurements is presented by studying damage processing in highly heterochromatic supernumerary (correction of sypernumerary) X chromosomes and the active X-chromosome. One of the important consequences of cell's inability to handle DNA damage can be evaluated through mutation studies. Part of our goal is the assessment of potential radioprotectors to reduce the mutation yield following HZE exposures, and some promising results are presented on one compound. A second goal is the integration of DNA repair and mutation studies. Results are presented on a direct

  12. Study Strategies Comparison and Self-Regulationin University Students

    Directory of Open Access Journals (Sweden)

    Irma Rosa Alvarado Guerrero

    2014-04-01

    Full Text Available The main factors associated with academic performance are study strategies and self-regulation in university students, thus the objective of this paper is to compare two sample groups: those in a regular status and others under certain academic lag. The Study Strategies Inventory and Self-Regulation (IEEA BY Castaneda was applied to 41 learners. It was observed that both groups need support to develop strategies for the four scales of the instrument: Information acquisition, memory resource management, information processing and self-regulation in all three dimensions: people, tasks and materials. In conclusion there is a need to develop programs to help the consolidation of study strategies and self-regulation and highlights the importance of analyzing the factors in teacher’s education and development of programs and curricula, to improve academic performance in higher educationinstitutions.

  13. Studies on Solid Wood. IV. Comparison of Nordic Pine Trees

    DEFF Research Database (Denmark)

    Bjørkmann, Anders

    2002-01-01

    The methods developed previously for measuring stiffness, creep, and axial compression of solid wood have been used for a comparative study of three specimens of pine (Pinus silvestris), collected at different latitudes in Scandinavia (North Sweden, South Finland and Denmark). Axial samples taken...... were obtained. In spite of the distinct differences in morphology, the pine specimens were generally quite similar. The specimens were also studied by other wood scientists, but a combined evaluation with the present results is not really possible without a deeper understanding of the wood...

  14. A Comparison of Parameter Study Creation and Job Submission Tools

    Science.gov (United States)

    DeVivo, Adrian; Yarrow, Maurice; McCann, Karen M.; Biegel, Bryan (Technical Monitor)

    2001-01-01

    We consider the differences between the available general purpose parameter study and job submission tools. These tools necessarily share many features, but frequently with differences in the way they are designed and implemented For this class of features, we will only briefly outline the essential differences. However we will focus on the unique features which distinguish the ILab parameter study and job submission tool from other packages, and which make the ILab tool easier and more suitable for use in our research and engineering environment.

  15. Radiosurgery for skull base meningiomas: a study on 230 cases in Iranian Gamma Knife Center

    Directory of Open Access Journals (Sweden)

    Ali Bitara M

    2010-06-01

    Full Text Available "n Normal 0 false false false EN-US X-NONE AR-SA MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:Arial; mso-bidi-theme-font:minor-bidi;} Background: Meningiomas are among the most common tumors of the brain. Skull base meningiomas comprise s major part of brain meningiomas. They are difficult to treat because of proximity to major vital neuro-vascular structures which makes their surgical resection hazardous and fraught with a high rate of complications. Radiosurgery is considered as an alternative efficient way to treat them, which targets the tumor and its supplying vasculature. The standard treatment consists of tumor eradication and its supplying vessels through homogeneous dose of 201 rays of cobalt 60 source."n"nMethods: In a case-series study, we report 230 meningiomas referred to Iraninan Gamma Knife Center, treated by radiosurgery with type C Gamma Knife. Radio-surgery was performed at a mean dose of 15 Gy and 50% isodose."n"nResults: Two hundred and thirty of all meningioma cases refered to our institute were skull base lesions. Eighty (35% were new case and the rest were previously treated microsurgically one or more times. None of the patients died after treatment and the most common post-operative complications were headache (30 patients and peri-tumoral edema (12 patients."n"nConclusion: Tumoral control is defined as reduced tumor volume

  16. Comparison of solid food markers in gastric emptying studies

    International Nuclear Information System (INIS)

    In studies of gastric emptying of solid foods, it is essential that the radiolabel remain firmly bound to the food to trace its behavior. Initial studies with radiolabeled solid meals suffered from the apparent dissociation of the radiolabel from the solid food and actually traced the liquid phase of the gastric contents rather than the solid phase. This problem was eventually overcome by the introduction of technetium-99m-sulfur colloid labeled in vivo chicken liver, in which the radiocolloid is believed to the trapped intracellularly in the chicken liver. Although the in vivo chicken liver gives good results clinically, many patients do not care for chicken liver, and the agent requires the housing and slaughtering of live chickens, a process for which most Nuclear Medicine departments are not equipped. Some alternative radiolabeled solid foods have been evaluated for their stability in vitro and the best of these were then compared in vivo in normal subjects. When tested in vitro, the firmest label for solid food appears to be in vivo chicken liver, although Tc-ovalbumin-egg and Tc-sulfur colloid egg are almost as stable. Evaluation of solid food labels in vitro should be done in gastric juice, not HCl. Based on the studies of normal subjects, Tc-sulfur colloid-egg is equivalent to in vivo chicken liver for gastric emptying studies. In addition, it is more convenient to prepare, and has better patient acceptance

  17. COMPARISON OF SAMPLING TECHNIQUES USED IN STUDYING LEPIDOPTERA POPULATION DYNAMICS

    Science.gov (United States)

    Four methods (light traps, foliage samples, canvas bands, and gypsy moth egg mass surveys) that are used to study the population dynamics of foliage-feeding Lepidoptera were compared for 10 species, including gypsy moth, Lymantria dispar L. Samples were collected weekly at 12 sit...

  18. Application of Interactive Classification System in University Study Course Comparison

    Science.gov (United States)

    Birzniece, Ilze; Rudzajs, Peteris; Kalibatiene, Diana; Vasilecas, Olegas; Rencis, Edgars

    2015-01-01

    The growing amount of information in the world has increased the need for computerized classification of different objects. This situation is present in higher education as well where the possibility of effortless detection of similarity between different study courses would give the opportunity to organize student exchange programmes effectively…

  19. Comparison study of selected geophysical and geotechnical parameters

    DEFF Research Database (Denmark)

    Nissen, Randi Warncke; Poulsen, Søren Erbs

    2015-01-01

    Successful foundation of constructions relies on accurate characterization of the geotechnical properties of the subsurface. By implementing data from geophysical surveys, the placement of geotechnical drillings can be significantly improved, potentially reducing the number of required drillings....... This case study is mainly to compare geophysical investigations (MEP/IP) with existing PACES data and information from geotechnical drillings....

  20. Comparison study of selected Geophysical and geotechnical parameters

    DEFF Research Database (Denmark)

    Nissen, Randi Warncke; Poulsen, Søren Erbs

    2015-01-01

    Successful foundation of constructions relies on accurate characterization of the geotechnical properties of the subsurface. By implementing data from geophysical surveys, the placement of geotechnical drillings can be significantly improved, potentially reducing the number of required drillings....... This case study is mainly to compare geophysical investigations (MEP/IP) with existing PACES data and information from geotechnical drillings....

  1. Risk management study for the Hanford Site facilities: Risk reduction cost comparison for the retired Hanford Site facilities. Volume 4

    Energy Technology Data Exchange (ETDEWEB)

    Coles, G.A.; Egge, R.G.; Senger, E.; Shultz, M.W.; Taylor, W.E.

    1994-02-01

    This document provides a cost-comparison evaluation for implementing certain risk-reduction measures and their effect on the overall risk of the 100 and 200 Area retired, surplus facilities. The evaluation is based on conditions that existed at the time the risk evaluation team performed facility investigations, and does not acknowledge risk-reduction measures that occurred soon after risk identification. This evaluation is one part of an overall risk management study for these facilities. The retired facilities investigated for this evaluation are located in the 100 and 200 Areas of the 1450-km{sup 2} Hanford Site. The Hanford Site is a semiarid tract of land in southeastern Washington State. The nearest population center is Richland, Washington, (population 32,000) 30 km southeast of the 200 Area. This cost-comparison evaluation (1) determines relative costs for reducing risk to acceptable levels; (2) compares the cost of reducing risk using different risk-reduction options; and (3) compares the cost of reducing risks at different facilities. The result is an identification of the cost effective risk-reduction measures. Supporting information required to develop costs of the various risk-reduction options also is included.

  2. A comparison of different hydrologic modeling approaches: the case study of Cerfone river

    Science.gov (United States)

    Venturi, Sara; Di Francesco, Silvia; Manciola, Piergiorgio

    2016-04-01

    The increasing occurrence of extreme meteorological events and the strong land exploitation, especially the overbuilding and urbanization of the flood prone areas, has led to a considerable increase of the hydraulic risk associated to these areas and, consequently, to an effort of institutions and researchers to find proper solutions. The analyzed case study deals with the Cerfone river, a tributary of the Tiber River, in the Tuscany region (Italy). The complex morphology of the floodplains and the presence of hydraulic structures (i.e. bridges) that block the river discharge cross section, cause the periodic flooding of the neighbouring small villages during extreme weather events. The flood hazard management and safety plan implementation is strictly connected to the hydrological modeling of river basin.The uncertainty in rain- run off evaluation can lead to different results in terms of discharge peak and hydrographs shape, affecting then all the next risk analysis. The choice of the hydrologic model to apply in the study of Hydraulic Risk delineation is therefore a critical issue. In this work three different approaches to model the basin hydrological response are used and discussed: i) lumped model built in accordance with the standards of methodological model of ALTo (ALluvioni Toscana, Tuscany Region), generally used in the region for hydrologic and hydraulic studies; ii) a semi-distributed model, performed using the hydrological software model HEC - HMS (Hydrologic Engineering Center, US Army Corps of Engineers), which is based on the evaluation of the value of critical duration storm at significant sections of the basin. It is based on models for estimated losses, inflows - outflows transformation method and meteorological model in accordance with the standards of ALTo; iii) lumped model based on the rational equation and the concentration time of Giandotti, in accordance with the methodology of the Tiber River Basin Authority. The critical analysis and

  3. Science and Social Studies Teachers’ Beliefs and Practices about Teaching Controversial Issues: Certain Comparisons

    OpenAIRE

    Zafer Kuş

    2015-01-01

    The current study aims to investigate social studies and science teachers’ attitudes and classroom practices associated with controversial issues. The study is a qualitative research based on data collected through interviews and observation. Social studies and Science teachers participated in the current study which was conducted in Kirsehir, a city in the center of Turkey, during the 2012-2013 academic years. Data were collected through classroom observation and interviews with teachers. In...

  4. Empirical Study of IPTV Diffusion: Comparison between Japan and Korea

    OpenAIRE

    Kinugasa, Satoshi; MOTOHASHI Kazuyuki; Yeong-Wha SAWNG; Terada, Shinichiro

    2010-01-01

    This study analyzes a diffusion pattern of IPTV (Internet Protocol TV), based on TAM (Technology Acceptance Model). RIETI conducted a household survey of IPTV to understand factors behind advancement of "digital conversion" of Internet and broadcasting services in Japan. The results of this survey are compared with those of a similar survey in Korea, conducted by ETRI (Electronics and Telecommunications Research Institute). Our structural equation model (SEM) analysis reveals that "ease-of-us...

  5. Preliminary dose comparisons for the MRS Systems Study

    International Nuclear Information System (INIS)

    This report provides preliminary information on the radiological doses to the public and the workers for alternative system configurations proposed in the MRS Systems Study. Information published in the MRS Environmental Assessment (DOE 1986) was used as a basis for this analysis. The risk differences between alternative configurations were found to be small and should not be viewed as a major factor in selecting alternative configurations. 1 ref

  6. A comparison study of body dysmorphic disorder versus social phobia

    OpenAIRE

    Kelly, Megan M.; Dalrymple, Kristy; Zimmerman, Mark; Phillips, Katharine A.

    2012-01-01

    Body dysmorphic disorder (BDD) shares many characteristics with social phobia (SP), including high levels of social anxiety and avoidance, but to our knowledge no studies have directly compared these disorders’ demographic and clinical features. Demographic and clinical features were compared in individuals with BDD (n=172), SP (n=644), and comorbid BDD/SP (n=125). SP participants had a significantly earlier age of onset and lower educational attainment than BDD participants. BDD participants...

  7. Dosimetric measurements and comparison studies in digital imaging system

    Science.gov (United States)

    Jung, Ji-Young; Kim, Hee-Joung; Lee, Chang-Lae; Cho, Hyo-Min; Nam, Sora

    2008-03-01

    Number of radiologic exams using digital imaging systems has rapidly increased with advanced imaging technologies. However, it has not been paid attention to the radiation dose in clinical situations. It was the motivation to study radiation dosimetry in the DR system. The objective of this study was to measure beam quality and patient's dose using DR system and to compare them to both IEC standard and IAEA guidelines. The measured average dose for chest and abdomen was 1.376 mGy and 9.501 mGy, respectively, compared to 0.4 mGy and 10.0 mGy in IAEA guidelines. The results also indicated that the DR system has a lower radiation beam quality than that of the IEC standard. The results showed that the patients may be exposed higher radiation for chest exams and lower radiation for abdomen exams using DR system. IAEA Guidelines were prepared based on western people which may be different weight and height for patients compared them to Korean. In conclusion, a new guideline for acceptable DR dosimetry for Korean patients may need to be developed with further studies for large populations. We believe that this research greatly help to introduce the importance of the dosimetry in diagnostic radiology in Korea. And, a development of database for dosimetry in diagnostic radiology will become an opportunity of making aware of radiation safety of medical examination to patient.

  8. Cost containment in the concentrated care center: a study of nursing, bed and patient assignment policies.

    Science.gov (United States)

    Landau, T P; Thiagarajan, T R; Ledley, R S

    1983-01-01

    In an effort to deliver the best possible care to seriously ill patients in the most cost-effective manner, Georgetown University has developed the Concentrated Care Center (CCC) as an essential component of the medical center complex. The design of the CCC, together with the application of controlled variable staffing procedures, permits considerable flexibility in the assignment of nurses (as well as patients) to individual units. This report outlines certain research hypotheses regarding policies designed to increase the cost-effectiveness of patient care in the CCC environment. Statistical techniques based on the theory of stochastic processes are developed to test these hypotheses and a FORTRAN IV computer program is developed to analyze one year of operational data from the CCC. PMID:6413127

  9. A Proposed Experiment to Study Relaxation Formation of a Spherical Tokamak with a Plasma Center Column

    CERN Document Server

    Hsu, S C

    2006-01-01

    A spherical tokamak (ST) with a plasma center column (PCC) can be formed via driven magnetic relaxation of a screw pinch plasma. An ST-PCC could in principle eliminate many problems associated with a material center column, a key weakness of the ST reactor concept. This work summarizes the design space for an ST-PCC in terms of flux amplification, aspect ratio, and elongation, based on the zero-beta Taylor-relaxed analysis of Tang & Boozer [Phys. Plasmas 13, 042514 (2006)]. The paper will discuss (1) equilibrium and stability properties of the ST-PCC, (2) issues for an engineering design, and (3) key differences between the proposed ST-PCC and the ongoing Proto-Sphera effort in Italy.

  10. Ecological and phylogenetic studies on purple sulfur bacteria based on their pufLM genes of the photosynthetic reaction center

    OpenAIRE

    Tank, Marcus

    2010-01-01

    In this thesis pufLM genes were tested for their suitability as phylogenetic markers for purple sulfur bacteria (PSB) and applied in environmental community studies as well as in polyphasic taxonomy. pufLM genes encode for the light and medium subunit of the photosynthetic reaction center type II proteins exclusively present in the polyphyletic group of anoxygenic phototrophic purple bacteria and Chloroflexaceae. Congruency between 16S rRNA gene and pufLM phylogeny was obtained in this study ...

  11. TIMBULAN DAN KOMPOSISI SAMPAH DI KAWASAN PERKANTORAN DAN WISMA (Studi Kasus: Werdhapura Village Center, Kota Denpasar, Provinsi Bali)

    OpenAIRE

    Made W. Wardiha; Pradwi S. A. Putri; Lya M. Setyawati; Muhajirin Muhajirin

    2014-01-01

    Solid waste is one of the potential problems in Bali Province. One of the waste sources in urban areas especially Denpasar is the office and hotel/inn/guesthouse. Werdhapura Village Center is one of the office and hotel areas in Denpasar. Werdhapura management does not have an integrated waste management. Therefore, it should be made an integrated waste management plan started by doing study about waste generation and composition. The purpose of this study is to investigate the generation and...

  12. Preliminary study of environmental parameters associated with the feasibility of a polygeneration plant at Kennedy Space Center

    International Nuclear Information System (INIS)

    The feasibility of a polygeneration plant at Kennedy Space Center was studied. Liquid hydrogen and gaseous nitrogen are the two principal products in consideration. Environmental parameters (air quality, water quality, biological diversity and hazardous waste disposal) necessary for the feasibility study were investigated. A National Environmental Policy Act (NEPA) project flow sheet was to be formulated for the environmental impact statement. Water quality criteria for Florida waters were to be established

  13. 2014 Korean Liver Cancer Study Group-National Cancer Center Korea Practice Guideline for the Management of Hepatocellular Carcinoma

    OpenAIRE

    ,

    2015-01-01

    The guideline for the management of hepatocellular carcinoma (HCC) was first developed in 2003 and revised in 2009 by the Korean Liver Cancer Study Group and the National Cancer Center, Korea. Since then, many studies on HCC have been carried out in Korea and other countries. In particular, a substantial body of knowledge has been accumulated on diagnosis, staging, and treatment specific to Asian characteristics, especially Koreans, prompting the proposal of new strategies. Accordingly, the n...

  14. Sharing Knowledge in a Shared Services Center Context: An Explanatory Case Study of the Dialectics of Formal and Informal Practices

    OpenAIRE

    Vieru, Dragos; Arduin, Pierre-Emmanuel

    2016-01-01

    International audience This study focuses on how knowledge sharing across boundaries of merging entities during an information system (IS) implementation project in a shared services center (SSC) context affects the resulting system functionality. Although the literature stresses the growing adoption of the SSC as an outsourcing model, there is a lack of studies that examine shared services as a dynamic process of knowledge sharing across the organizational boundaries. We draw on a socioma...

  15. Colorectal cancer: A case control study of dietary factors, King Faisal specialist hospital and researh center, Riyadh, Saudi Arabia

    OpenAIRE

    Nashar, Reem M.; Khalid S Almurshed

    2008-01-01

    Objective: This study was designed to assess various dietary factors and the nutritional status of hospitalized patients with colorectal cancer. Materials and Methods: A case-controlled study of fifty newly-admitted patients at King Faisal Specialist Hospital & Research Center, Riyadh, Saudi Arabia diagnosed with colorectal cancer were interviewed to collect data on various dietary factors and their nutritional status. Their data were compared with a sex-matched control group aged fifty. ...

  16. Comparative analysis of MR imaging, Ictal SPECT and EEG in temporal lobe epilepsy: a prospective IAEA multi-center study

    Energy Technology Data Exchange (ETDEWEB)

    Zaknun, John J. [University Hospital of Innsbruck, Department of Nuclear Medicine, Innsbruck (Austria); International Atomic Energy Agency (IAEA), Nuclear Medicine Section, Division of Human Health, Vienna (Austria); IAEA, Nuclear Medicine Section, Division of Human Health, Wagramer Strasse 5, P.O. Box 100, Wien (Austria); Bal, Chandrasekhar [All India Institute of Medical Sciences, Department of Nuclear Medicine, New Delhi (India); Maes, Alex [Katholieke Universiteit Leuven, Leuven (Belgium); AZ Groeninge, Department of Nuclear Medicine, Kortrijk (Belgium); Tepmongkol, Supatporn [Chulalongkorn University, Nuclear Medicine Division, Department of Radiology, Bangkok (Thailand); Vazquez, Silvia [Instituto de Investigaciones Neurologicas, FLENI, Department of Radiology, Buenos Aires (Argentina); Dupont, Patrick [Katholieke Universiteit Leuven, Leuven (Belgium); Dondi, Maurizio [Ospedale Maggiore, Department of Nuclear Medicine, Bologna (Italy); International Atomic Energy Agency (IAEA), Nuclear Medicine Section, Division of Human Health, Vienna (Austria)

    2008-01-15

    MR imaging, ictal single-photon emission CT (SPECT) and ictal EEG play important roles in the presurgical localization of epileptic foci. This multi-center study was established to investigate whether the complementary role of perfusion SPECT, MRI and EEG for presurgical localization of temporal lobe epilepsy could be confirmed in a prospective setting involving centers from India, Thailand, Italy and Argentina. We studied 74 patients who underwent interictal and ictal EEG, interictal and ictal SPECT and MRI before surgery of the temporal lobe. In all but three patients, histology was reported. The clinical outcome was assessed using Engel's classification. Sensitivity values of all imaging modalities were calculated, and the add-on value of SPECT was assessed. Outcome (Engel's classification) in 74 patients was class I, 89%; class II, 7%; class III, 3%; and IV, 1%. Regarding the localization of seizure origin, sensitivity was 84% for ictal SPECT, 70% for ictal EEG, 86% for MRI, 55% for interictal SPECT and 40% for interictal EEG. Add-on value of ictal SPECT was shown by its ability to correctly localize 17/22 (77%) of the seizure foci missed by ictal EEG and 8/10 (80%) of the seizure foci not detected by MRI. This prospective multi-center trial, involving centers from different parts of the world, confirms that ictal perfusion SPECT is an effective diagnostic modality for correctly identifying seizure origin in temporal lobe epilepsy, providing complementary information to ictal EEG and MRI. (orig.)

  17. Comparative analysis of MR imaging, Ictal SPECT and EEG in temporal lobe epilepsy: a prospective IAEA multi-center study

    International Nuclear Information System (INIS)

    MR imaging, ictal single-photon emission CT (SPECT) and ictal EEG play important roles in the presurgical localization of epileptic foci. This multi-center study was established to investigate whether the complementary role of perfusion SPECT, MRI and EEG for presurgical localization of temporal lobe epilepsy could be confirmed in a prospective setting involving centers from India, Thailand, Italy and Argentina. We studied 74 patients who underwent interictal and ictal EEG, interictal and ictal SPECT and MRI before surgery of the temporal lobe. In all but three patients, histology was reported. The clinical outcome was assessed using Engel's classification. Sensitivity values of all imaging modalities were calculated, and the add-on value of SPECT was assessed. Outcome (Engel's classification) in 74 patients was class I, 89%; class II, 7%; class III, 3%; and IV, 1%. Regarding the localization of seizure origin, sensitivity was 84% for ictal SPECT, 70% for ictal EEG, 86% for MRI, 55% for interictal SPECT and 40% for interictal EEG. Add-on value of ictal SPECT was shown by its ability to correctly localize 17/22 (77%) of the seizure foci missed by ictal EEG and 8/10 (80%) of the seizure foci not detected by MRI. This prospective multi-center trial, involving centers from different parts of the world, confirms that ictal perfusion SPECT is an effective diagnostic modality for correctly identifying seizure origin in temporal lobe epilepsy, providing complementary information to ictal EEG and MRI. (orig.)

  18. Mössbauer studies of two-electron centers with negative correlation energy in crystalline and amorphous semiconductors

    International Nuclear Information System (INIS)

    The results of the study of donor U−-centers of tin and germanium in lead chalcogenides by Mössbauer emission spectroscopy are discussed. The published data regarding the identification of amphoteric U−-centers of tin in glassy binary arsenic and germanium chalcogenides using Mössbauer emission spectroscopy, and in multicomponent chalcogenide glasses using Mössbauer absorption spectroscopy are considered. Published data concerning the identification of two-atom U−-centers of copper in lattices of semimetal copper oxides by Mössbauer emission spectroscopy are analyzed. The published data on the detection of spatial inhomogeneity of the Bose-Einstein condensate in superconducting semiconductors and semimetal compounds, and on the existence of the correlation between the electron density in lattice sites and the superconducting transition temperature are presented. The principal possibility of using Mössbauer U−-centers as a tool for studying the Bose-Einstein condensation of electron pairs during the superconducting phase transition in semiconductors and semimetals is considered.

  19. Providing Co-Curricular Support: A Multi-Case Study of Engineering Student Support Centers

    OpenAIRE

    Lee Jr, Walter Curtis

    2015-01-01

    In response to the student retention and diversity issues that have been persistent in undergraduate engineering education, many colleges have developed Engineering Student Support Centers (ESSCs) such as Minority Engineering Programs (MEPs) and Women in Engineering Programs (WEPs). ESSCs provide underrepresented students with co-curricular support using student interventions in the form of programs, activities, and services. However, ESSCs have a relatively short history and there are gaps i...

  20. The World Trade Center Residents’ Respiratory Health Study: New-Onset Respiratory Symptoms and Pulmonary Function

    OpenAIRE

    Reibman, Joan; Lin, Shao; Hwang, Syni-An A.; Gulati, Mridu; Bowers, James A.; Rogers, Linda; Berger, Kenneth I.; Hoerning, Anne; Gomez, Marta; Fitzgerald, Edward F.

    2004-01-01

    The destruction of the World Trade Center (WTC) on 11 September 2001 in New York City resulted in the massive release of pulverized dust and combustion products. The dust and smoke settled in the surrounding area, which encompassed a large residential community. We hypothesized that previously normal residents in the community surrounding the former WTC would have an increased incidence of persistent respiratory symptoms and abnormalities in screening spirometry. A hybrid cross-sectional and ...

  1. PTSD and Alcohol Use After the World Trade Center Attacks: A Longitudinal Study

    OpenAIRE

    Boscarino, Joseph A.; Kirchner, H. Lester; Hoffman, Stuart N; Sartorius, Jennifer; Adams, Richard E.

    2011-01-01

    Research suggests that posttraumatic stress disorder (PTSD) is associated with increased alcohol use, but the findings have not been consistent. We assessed alcohol use, binge drinking, and psychotropic medication use longitudinally in 1,681 New York City adults, representative of the 2000 census, 2 years after the World Trade Center attacks. We found that, with the exception of a modified CAGE Questionnaire index for alcohol, alcohol use showed a modest increase over time and was related to ...

  2. Study of Construction of Personalized Service Oriented Government Virtual Information Service Center

    Institute of Scientific and Technical Information of China (English)

    2009-01-01

    In this paper, we proposed the idea of personalized information service for enterprises and customers through government visual information service center (GVISC). It discusses an extensible, reusable, reconstructive and integrated framework of GVISC with new techniques, such as XML, agent, data mining and information portal. They include the design and analysis of the logical structure, the design of the data layer, and the description of the function application. We show an example of personalized informa...

  3. 78 FR 42084 - Electronic Study Data Submission; Data Standard Support; Availability of the Center for Drug...

    Science.gov (United States)

    2013-07-15

    ...The Center for Drug Evaluation and Research (CDER) of the Food and Drug Administration (FDA) is announcing the availability of the CDER Data Standards Strategy (version 1.0) and the CDER Data Standards Strategy--Action Plan (version 1.0). This action is being taken to ensure that all interested stakeholders are aware that the data standards program documents are available and is intended to......

  4. Identifying the key success issues in shared service centers - A comparative case study

    OpenAIRE

    Kulju, Minna

    2016-01-01

    Over the recent years, more interest has been paid to ways to also develop the supporting processes and find and utilize the possible cost-cutting and performance improvement ideas available. One such improvement idea is the concentrating of supporting processes into a shared service center (SSC). In layman terms, shared services can be described as a strategic orientation organizing support functions within a company. In a sense, the company is concentrating certain support functions into on...

  5. Evaluation and Comparison of Clinical and Para- Clinical Diagnosis of Trichomonas Vaginitis in Women Referred to Shahroud City Health Care Centers

    Directory of Open Access Journals (Sweden)

    Nahid Bolbol-Haghighi

    2008-01-01

    Full Text Available Introduction: Trichomonas is a sexually transmitted disease and its agent is a flagellated parasite called trichomonas vaginitis. This is the third common reason of vaginities and 180 millions women at world and 2-3 millions at U.S suffer from it. Because of its high prevalence and expensive treatment, we decided to evaluate its clinical and para- clinical diagnosis. Methods: This is an analytic cross-sectional study and carried out on 300 women with signs of vaginitis infections and had indication for Pap smear which referred to shahrood city heath care centers. In this study we took two samples of secretion from both endocervix and exocervix by speculum spred them on two lame contemporaneous, and one sample from posterior koldosace secretions with cotton soup and entered to tube with sterilized physiological serum. Questionnaires were filled among patients by midwife. The cases were followed by taking Pap smear and wet smear, calturing and filling the second questionnaire. Finally, the results in medical, microbiological and cytological diagnosis were compared. The sensivity and specifity of each diagnostic method were evaluated using statistical methods. Results: Results of the study showed that the most outbreaks of trichomonas vaginitis were at age group between 21 to 35 (52.6% and the lowest prevalence was among women less than 20(5.3% years old. It is reported 78 cases of trichomonas in clinical examination, but none of culture medias has demonstrated trichomonas. Percentage of false positive at clinical diagnosis method was 26% more than culture method and 25.7 % more than wet smear and Pap smear methods. Conclusion: Paraclinic with clinical examination play an important role in diagnosis and treatment of vaginitis. Thus for preventing of unnecessary drug prescription and preventing it,s side effects, it is recommended para- clinical examination in suspect patients.

  6. Prediction of attendance at fitness center: a comparison between theory of planned behavior, social cognitive theory, and physical activity maintenance theory

    Directory of Open Access Journals (Sweden)

    Darko eJekauc

    2015-02-01

    Full Text Available In the processes of physical activity (PA maintenance specific predictors are effective, which differ from other stages of PA development. Recently, Physical Activity Maintenance Theory (PAMT was specifically developed for prediction of PA maintenance. The aim of the present study was to evaluate the predictability of the future behavior by the PAMT and compare it with the Theory of Planned Behavior (TPB and Social Cognitive Theory (SCT. Participation rate in a fitness center was observed for 101 college students (53 female aged between 19 and 32 years (M = 23.6; SD = 2.9 over 20 weeks using a magnetic card. In order to predict the pattern of participation TPB, SCT and PAMT were used. A latent class zero-inflated Poisson growth curve analysis identified two participation patterns: regular attenders and intermittent exercisers. SCT showed the highest predictive power followed by PAMT and TPB. Impeding aspects as life stress and barriers were the strongest predictors suggesting that overcoming barriers might be an important aspect for exercise maintenance. Self-efficacy, perceived behavioral control, and social support could also significantly differentiate between the participation patterns.

  7. The rate of pregnancy in Trinidad and Tobago: A comparison between pregnant teenagers and pregnant adults registered at three health centers

    Directory of Open Access Journals (Sweden)

    Joan M Rawlins

    2013-07-01

    Full Text Available Aim: This paper aims to determine the difference between the health and social conditions of women who had their first pregnancy as teenagers (13-19 years old and those who had their first pregnancy during post-adolescence (20-41 years old. Materials and Methods : The results were based on a structured, 60-item interview schedule with 132 cases (71 teenagers and 61 women ≥ 20 year old in Trinidad and Tobago. These cases comprised Afro-Trinidadians, Indo-Trinidadians, and Trinidadians of "Mixed" ancestry, who were all recruited by nurses in three health centers in Northern Trinidad, during the period October 2004 to October 2005. The main issues of concern regarding the respondents were history of stillbirths, abortion, contraceptive use, intended family size, marital status, and employment status. Data were analyzed, using Statistical Package for the Social Sciences (SPSS 12.0. Results : While the study shows similarity between the two groups of respondents, in terms of their breast-feeding practices, there were differences regarding teenage mothers who experienced a higher level of unemployment (35%, single and common law relationships (81%, and lower contraceptive use (11.8%. The older mothers were more likely to be classified as unskilled (34.4% compared to 22.5% for the teen group. Conclusions : The findings reveal that teenage pregnancy is considered a risk factor and has socio-economic implications regarding the lives of the mother and child in terms health, income, employment, and marital status.

  8. Soybean allergen detection methods--a comparison study

    DEFF Research Database (Denmark)

    Pedersen, M. Højgaard; Holzhauser, T.; Bisson, C.;

    2008-01-01

    Soybean containing products are widely consumed, thus reliable methods for detection of soy in foods are needed in order to make appropriate risk assessment studies to adequately protect soy allergic patients. Six methods were compared using eight food products with a declared content of soy: a...... direct sandwich ELISA based on polyclonal rabbit antibody (ab) to raw soy flakes, a commercial and an in-house competitive ELISA both based on ab to denatured, 'renatured' soy protein, an enzyme-allergosorbent test (EAST) inhibition based on two sera from soy allergic patients, histamine release (HR...

  9. P2P IPTV Measurement: A Comparison Study

    OpenAIRE

    Silverston, Thomas; Fourmaux, Olivier

    2006-01-01

    With the success of P2P file sharing, new emerging P2P applications arise on the Internet for streaming content like voice (VoIP) or live video (IPTV). Nowadays, there are lots of works measuring P2P file sharing or P2P telephony systems, but there is still no comprehensive study about P2P IPTV, whereas it should be massively used in the future. During the last FIFA world cup, we measured network traffic generated by P2P IPTV applications like PPlive, PPstream, TVants and Sopcast. In this pap...

  10. Cohort Comparisons in Resources and Functioning among Centenarians: Findings from the Georgia Centenarian Study

    Science.gov (United States)

    Cho, Jinmyoung; Martin, Peter; Margrett, Jennifer; MacDonald, Maurice; Poon, Leonard W.; Johnson, Mary Ann

    2012-01-01

    The purpose of this study was to examine cohort comparisons in levels of resources (e.g., mental health, physical functioning, economic and social resources, and cognitive functioning) for 211 community-dwelling centenarians (whose Mini-Mental Status Examination score was 23 or higher) of phases I and III of the Georgia Centenarian Study. The…

  11. Earth & Space-Based Power Generation Systems - A Comparison Study

    Science.gov (United States)

    Zerta, M.; Blandow, V.; Collins, P.; Guillet, J.; Nordmann, Thomas; Schmidt, Patrick; Weindorf, Werner; Zittel, Werner

    2004-12-01

    The objective of the study [1] is to comparatively assess the economic viability, energy investment, risk and reliability issues of broad-scale introduction of terrestrial and space based solar power systems for a European power supply in 2030 at various scenario power levels. The scenario design in terms of base load and non-base load cases is only suited to gain principle knowledge about both terrestrial and space-based solar power system architectures. The comparative cost, energy, risk and reliability discussions and evaluations are based on highly asymmetrical input data due to different magnitudes of practical experiences. However, under the study assumptions given, space- based solar power systems may potentially provide a firm power supply and could be economically competitive to terrestrial solar power systems if space transportation costs in the lower hundreds EUR/kg payload are achieved. The energy payback time could be in the range of other solar power technologies far below their operational lifetimes. Risks attributed with SPS are mainly in the field of health and public acceptance of microwave power transmission, the general R&D risk and geopolitical implications.

  12. A comparison study of body dysmorphic disorder versus social phobia.

    Science.gov (United States)

    Kelly, Megan M; Dalrymple, Kristy; Zimmerman, Mark; Phillips, Katharine A

    2013-01-30

    Body dysmorphic disorder (BDD) shares many characteristics with social phobia (SP), including high levels of social anxiety and avoidance, but to our knowledge no studies have directly compared these disorders' demographic and clinical features. Demographic and clinical features were compared in individuals with BDD (n=172), SP (n=644), and comorbid BDD/SP (n=125). SP participants had a significantly earlier age of onset and lower educational attainment than BDD participants. BDD participants were significantly less likely to ever be married than SP participants, had a greater likelihood of ever being psychiatrically hospitalized, and had significantly lower mean GAF scores than SP participants. The two groups had different comorbidity patterns, which included a greater likelihood for BDD participants to have comorbid obsessive-compulsive disorder (OCD) or an eating disorder, vs. a greater likelihood for SP participants to have a comorbid non-OCD anxiety disorder. The comorbid BDD/SP group had significantly greater morbidity across several domains than the SP only group, but not the BDD only group. In summary, although BDD and SP were similar across many demographic and clinical features, they had important differences. Future studies are needed to confirm these findings and address similarities and differences between these disorders across a broader range of variables. PMID:22999105

  13. A multi-center study of hemodynamic characteristics exhibited by children with unexplained syncope

    Institute of Scientific and Technical Information of China (English)

    CHEN Li; TANG Chao-shu; DU Jun-bao; YANG Yuan-yuan; WANG Cheng; WANG Hong-wei; TIAN Hong; ZHANG Qing-you; CHEN Jian-jun; WANG Yu-li; KANG Yi-long

    2006-01-01

    Background Syncope is common in children and adolescents, with 15% estimated to have had at least one syncopal episode by age 18. In recent years, an increasing number of children, especially girls at their school age,have developed unexplained syncope. The mechanism of an unexplained syncope exhibited by children is incompletely studied; the association between different hemodynamic patterns and clinical features is also not clear. The aim of the study was to investigate the hemodynamic patterns of children with unexplained syncope and to examine the clinical relevance.Methods Two hundred and eight children [87 boys, 121 girls, aged 3-19 years, mean (11.66±2.72) years]were selectively recruited from May 2000 to April 2006 when they presented syncope as their main complaint at the Multi-center Network for Childhood Syncope in Beijing, Hunan Province, Hubei Province, and Shanghai of China. All of the patients underwent head-up tilt tests; data were analyzed using SPSS version 10.0 for Windows.Continuous variables were expressed as the mean±standard deviation. Dichotomous variables were compared through a χ2 test. A value of P<0.05 (two sided) was regarded as statistically significant.Results The age distribution of children with syncope was approximately normal. Head-up tilt tests was positive in 155 children, and the incidence of positive response of the baseline head-up tilt test for diagnosing unexplained syncope was 50.48%. The sensitivity value and diagnostic value of sublingual nitroglycerin head-up tilt test were both 74.52%. The hemodynamic pattern was normal in 53 children. The 155 children, who were positive in head-up tilt tests, showed signs of postural orthostatic tachycardia syndrome (60, 28.8%), the vasoinhibitory pattern (72, 34.6%), the cardioinhibitory pattern (5, 2.4%), and the mixed pattern (18, 8.7%). The gender distribution between the two age groups (age < 12 years vs age ≥ 12 years) was not different (P>0.05).The distribution of

  14. Hepatocellular carcinoma in Egypt: A single center study over a decade

    Science.gov (United States)

    El-Zayadi, Abdel-Rahman; Badran, Hanaa M; Barakat, Eman MF; Attia, Mohy El-Deen; Shawky, Sherine; Mohamed, Mostafa K; Selim, Osaima; Saeid, Ahmed

    2005-01-01

    AIM: To identify the trend, possible risk factors and any pattern change of hepatocellular carcinoma (HCC) in Egypt over a decade. METHODS: All HCC patients attending Cairo Liver Center between January 1993 and December 2002, were enrolled in the study. Diagnosis of HCC was based on histopathological examination and/or detection of hepatic focal lesions by two imaging techniques plus α-fetoprotein level above 200 ng/mL. The duration of the study was divided into two periods of 5 years each; period I (1993-1997) and period II (1998-2002). Trend, demographic features of patients (age, gender, and residence), risk factors (HBsAg, HCV-Ab, schistosomiasis and others) and pattern of the focal lesions were compared between the two periods. Logistic regression model was fitted to calculate the adjusted odds ratios for the potential risk factors. The population attributable risk percentage was calculated to estimate the proportion of HCC attributed to hepatitis B and C viral infections. RESULTS: Over a decade, 1 328 HCC patients out of 22 450 chronic liver disease (CLD) patients were diagnosed with an overall proportion of 5.9%. The annual proportion of HCC showed a significant rising trend from 4.0% in 1993 to 7.2% in 2002 (P = 0.000). A significant increase in male proportion from 82.5% to 87.6% (P = 0.009); M/F from 5:1 to 7:1 and a slight increase of the predominant age group (40-59 years) from 62.6% to 66.8% (P = 0.387) in periods I and II respectively, reflecting a shift to younger age group. In the bivariate analysis, HCC was significantly higher in rural residents, patients with history of schistoso-miasis and/or blood transfusion. Yet, after adjustment, these variables did not have a significant risk for development of HCC. There was a significant decline of HBsAg from 38.6% to 20.5% (P = 0.000), and a slight increase of HCV-Ab from 85.6% to 87.9% in periods I and II respectively. HBV conferred a higher risk to develop HCC more than HCV in period I (OR 1.9 vs 1

  15. More standing and just as productive: Effects of a sit-stand desk intervention on call center workers’ sitting, standing, and productivity at work in the Opt to Stand pilot study

    OpenAIRE

    Chau, Josephine Y; Sukala, William; Fedel, Karla; Do, Anna; Engelen, Lina; Kingham, Megan; Sainsbury, Amanda; Bauman, Adrian E

    2015-01-01

    This study evaluated the effects of sit-stand desks on workers' objectively and subjectively assessed sitting, physical activity, and productivity. This quasi-experimental study involved one intervention group (n = 16) and one comparison group (n = 15). Participants were call center employees from two job-matched teams at a large telecommunications company in Sydney, Australia (45% female, 33 ± 11 years old). Intervention participants received a sit-stand desk, brief training, and daily e-mai...

  16. Evaluation of Brazilian Sugarcane Bagasse Characterization: An Interlaboratory Comparison Study

    Energy Technology Data Exchange (ETDEWEB)

    Sluiter, Justin B.; Chum, Helena; Gomes, Absai C.; Tavares, Renata P.A.; Azevedo, Vinicius; Pimenta, Maria T.B.; Rabelo, Sarita C.; Marabezi, Karen; Curvelo, Antonio A.S.; Alves, Aparecido R.; Garcia, Wokimar T.; Carvalho, Walter; Esteves, Paula J.; Mendonca, Simone; Oliveira, Patricia A.; Ribeiro, Jose A.A.; Mendes, Thais D.; Vicentin, Marcos P.; Duarte, Celina L.; Mori, Manoel N.

    2016-05-01

    This paper describes a study of the variability of measured composition for a single bulk sugarcane bagasse conducted across eight laboratories using similar analytical methods, with the purpose of determining the expected variation for compositional analysis performed by different laboratories. The results show good agreement of measured composition within a single laboratory, but greater variability when results are compared among laboratories. These interlaboratory variabilities do not seem to be associated with a specific method or technique or any single piece of instrumentation. The summary censored statistics provide mean values and pooled standard deviations as follows: total extractives 6.7% (0.6%), whole ash 1.5% (0.2%), glucan 42.3% (1.2%), xylan 22.3% (0.5%), total lignin 21.3% (0.4%), and total mass closure 99.4% (2.9%).

  17. Comparison studies on soda lignin and soda-anthraquinone lignin

    International Nuclear Information System (INIS)

    Soda lignin and soda anthraquinone lignin were compared in this study. The physico-chemical properties and structural features of the isolated lignin were characterized by Fourier Transform Infrared Spectroscopy (FTIR), Ultraviolet (UV), ash test, Carbon-Hydrogen-Nitrogen (CHN) analyzer, Nuclear Magnetic Resonance (13C-NMR) and High Performance Liquid Chromatography (HPLC). Nitrobenzene oxidation was performed on these two types of lignin especially for the HPLC analysis. Based on the CHN, 13C-NMR and UV results there were no significant differences between soda lignin and soda anthraquinone lignin. The FTIR results also showed that there were no significant differences in terms of functional groups that exist in both lignins. (author)

  18. Software development practices in academia: a case study comparison

    CERN Document Server

    Groen, Derek; Grogan, James A; Schiller, Ulf D; Osborne, James M

    2015-01-01

    Academic software development practices often differ from those of commercial development settings, yet only limited research has been conducted on assessing software development practises in academia. Here we present a case study of software development practices in four open-source scientific codes over a period of nine years, characterizing the evolution of their respective development teams, their scientific productivity, and the adoption (or discontinuation) of specific software engineering practises as the team size changes. We show that the transient nature of the development team results in the adoption of different development strategies. We relate measures of publication output to accumulated numbers of developers and find that for the projects considered the time-scale for returns on expended development effort is approximately three years. We discuss the implications of our findings for evaluating the performance of research software development, and in general any computationally oriented scienti...

  19. A comparison of methods used in root canal sealability studies

    International Nuclear Information System (INIS)

    The purpose of the study was to compare several methods that have been used to assess marginal leakage of root canal fillings. Sixty-three extracted, single-rooted teeth were instrumented and filled in a standardized manner. Teeth were randomly divided into groups of twenty and exposed to solutions containing methylene blue dye, calcium-45, carbon-14-labeled urea, and iodine-125-labeled albumin for 48 hours to compare the degree of leakage indicated by each technique. Methylene blue dye was found to penetrate farther up the canal than any of the isotope tracers. Carbon-14-labeled urea penetrated farther than the calcium-45- or iodine-125-labeled albumin. The mean volume of solution penetrating the teeth was exceedingly small (0.0011 ml) and probably unimportant physiologically

  20. A comparison of methods used in root canal sealability studies

    Energy Technology Data Exchange (ETDEWEB)

    Matloff, I.R.; Jensen, J.R.; Singer, L.; Tabibi, A.

    1982-02-01

    The purpose of the study was to compare several methods that have been used to assess marginal leakage of root canal fillings. Sixty-three extracted, single-rooted teeth were instrumented and filled in a standardized manner. Teeth were randomly divided into groups of twenty and exposed to solutions containing methylene blue dye, calcium-45, carbon-14-labeled urea, and iodine-125-labeled albumin for 48 hours to compare the degree of leakage indicated by each technique. Methylene blue dye was found to penetrate farther up the canal than any of the isotope tracers. Carbon-14-labeled urea penetrated farther than the calcium-45- or iodine-125-labeled albumin. The mean volume of solution penetrating the teeth was exceedingly small (0.0011 ml) and probably unimportant physiologically.

  1. Some Pharmacological Studies of Ropivacaine in comparison With bupivacaine

    Directory of Open Access Journals (Sweden)

    Hala Mohamed Nagiub, ** Mervat Mohamed El-Mously

    2001-06-01

    Full Text Available The effect of ropivacaine as a recent amino-amide local anaesthetic compared with bupivacaine on analgesic activities, cardiac contractility, blood pressure, heat rate, Electrocardiogram (ECG and toxicity was studied. The result of our study revealed that ropivacaine Exhibited a less degree of analgesic potency than bupivacain, it increase the reaction time by 20.6 and up to 167.6%while bupivacaine increased it by 37.32 up to 197.1%. On isolated rabbits heart, ropivacaine and bupivacaine induced a significant dose dependent ­ve inotropic effect. The cardiodepressant action of ropivacaine was lesser than that of bupivacaine. IV injection of ropivacaine (0.35-2.8mgkg produced slight increase in arterial blood pressure but in the last dose produce decrease in arterial blood pressure. Bupivacaine 0.5-1mgkg produce no significant change in arterial blood pressure but in the subsequent doses it produces hypotension up to death, this hypotension may be the beginning effect of high toxic blood level of the drug. Ropivacaine showed no alterations in ECG apart from significant decrease in heart rate only in high doses, but on the other hand bradycardia started earlier with bupivacaine (1mgkg and ECG changes were seen after 5 minutes from injecting 2mgkg which ended by cardiac arrest. In respect to toxicity, intra peritoneal LD50 of ropivacaine was found to be 115mgkg compared to 90mgkg of bupivacaine. We concluded that ropivacaine nearly resembles bupivacaine in its local analgesic effect but has a great margin of safety with less cardiodepressant action.

  2. Comparison of different UV models for cloud effect study

    International Nuclear Information System (INIS)

    Observations of UV radiation (290–400 nm) at Yanting, China (31°16′ N, 105°27′ E and 420 m above sea level) from 2005 to 2012 were used for investigating UV variability and its relationship with global solar radiation in Southwest China. Daily UV/G ratios generally increased from 3.7% in January to 4.5% in July with annual mean value of 4.2%. Clearness index was used for characterizing sky conditions and model development. Linear regression between UV and global solar radiation has been carried out and the results showed that the slope changed from 0.05 under overcast skies to 0.04 in clear skies. Nine UV models have been introduced by studying the dependence of hourly UV irradiation on the relative optical air mass, cloud modification factor and clearness index, respectively, which was assessed through the statistical indices: mean bias error, mean-absolute error and root-mean-square error. By comparing the statistical indices from different models, the most suitable UV model was chosen for analyzing the cloud effects. Finally, it was found that the attenuation of UV radiation caused by clouds increased from 35.6% in July to 64.4% in January. - Highlights: • 8-Year observations are used to show the temporal variability of UV and UV/G. • Relationship between both clearness indices is investigated. • Nine different UV models have been proposed. • UV attenuation indices are calculated for cloud effect study

  3. Pulse wave analysis with two tonometric devices: a comparison study

    International Nuclear Information System (INIS)

    Pulse wave analysis is a pivotal tool to estimate central haemodynamic parameters. Available commercial devices use applanation tonometry and have been validated against invasive catheterism. We previously observed differences on a radial second systolic peak (rSPB2) between two commonly used devices: SphygmoCor (AtCor, Australia) and PulsePen (DiaTecne, Italy). The aim of our study was to further quantify differences in radial and carotid signals from the two devices.We measured radial and carotid waveforms in 38 patients with minimal changes between systolic, diastolic blood pressure and heart rate. rSBP2, mean pressure, form factor and augmentation index were different with SphygmoCor providing lower values (mean differences: 2.2 ± 3.8 mmHg; 1.5 ± 1.7 mmHg; 3.2 ± 3.5%; 4.2 ± 8.4%, respectively). Carotid augmentation index and form factor were similar. However carotid systolic pressure (cSBP) from PulsePen was higher than cSBP from SphygmoCor (2.7 ± 4.4 mmHg, p < 0.001). For both carotid and radial signals, harmonics moduli were similar across the spectrum with the exception of the 1st harmonic. PulsePen and SphygmoCor sensors are not equivalent and provide different wave shapes despite similar harmonics content with more discrepancy on radial derived parameters than on carotid derived parameters. Further studies are required to compare invasive pressure parameters to indices derived from these two devices. (paper)

  4. The characteristics of serious suicide attempters in Japanese adolescents- comparison study between adolescents and adults

    Directory of Open Access Journals (Sweden)

    Kawashima Yoshitaka

    2012-11-01

    Full Text Available Abstract Background Suicide is the leading cause of death among Japanese adolescents, and they may commit suicide differently from adults. However, there are few studies in medical-based data concerning adolescent patients seriously attempting suicide. We aimed to explore the characteristics of serious suicide attempts in Japanese adolescents, comparing them with those in adults. Methods We investigated adolescents who seriously attempted suicide and were treated at the Critical Care Medical Center (CCMC of Nippon Medical School Hospital between 2000 and 2010, and we compared them with adult suicide attempters treated during 2009. We retrospectively studied medical records and collected clinical data and socio-demographic factors, including age, sex, psychiatric symptoms or diagnosis, methods of suicide attempt, motives for suicide attempt, previous deliberate self-harm, previous psychiatric history, parent loss experience, and previous psychiatric history in the family. Results Adolescent attempters were 15 males and 44 females, 13 to 18 years old (mean 16.39. Adult attempters were 37 males and 65 females, 19 to 79 years old (mean 39.45. In comparison to adult attempters, adolescent attempters were more frequently diagnosed with Borderline Personality Disorder (BPD, had more school problems and parent loss experience, but they had less financial problems. Gender differences between adolescents and adults were examined, and male adolescent attempters were found to be more frequently diagnosed with schizophrenia and had less financial problems than their adult counterparts, while female adolescent attempters were more frequently diagnosed with BPD, had more school problems and parent loss, but they had less previous psychiatric history than their adult counterparts. Conclusions Our findings indicated that adolescent attempters were more frequently diagnosed with BPD and had more school problems and parent loss experience but had less financial

  5. Association between co-authorship network and scientific productivity and impact indicators in academic medical research centers: A case study in Iran

    Directory of Open Access Journals (Sweden)

    Yousefi-Nooraie Reza

    2008-09-01

    Full Text Available Abstract Background We aimed to examine the co-authorship networks in three successful Iranian academic research centers, in order to find the association between the scientific productivity and impact indicators with network features in a case study. Methods We searched for English articles of the three research centers. We drew co-authorship maps of each center and calculated social network measures. Results The collaboration networks in centers shared many structural features, including a "star-like" pattern of relations. Centers with more successful scientific profile showed denser and more cooperative networks. Key figures in each center were interviewed for their understandings of the reasons for the emergence of these patterns. Conclusion Star shape network structure and dependency on a single big member is a common feature observed in our case study. Scientific output measures correlate with the network structure of research centers. Network analysis seems a useful method to explore the subtle scientific contexts in research organizations.

  6. Comparison study on cell calculation method of fast reactor

    International Nuclear Information System (INIS)

    Effective cross sections obtained by cell calculations are used in core calculations in current deterministic methods. Therefore, it is important to calculate the effective cross sections accurately and several methods have been proposed. In this study, some of the methods are compared to each other using a continuous energy Monte Carlo method as a reference. The result shows that the table look-up method used in Japan Nuclear Cycle Development Institute (JNC) sometimes has a difference over 10% in effective microscopic cross sections and be inferior to the sub-group method. The problem was overcome by introducing a new nuclear constant system developed in JNC, in which the ultra free energy group library is used. The system can also deal with resonance interaction effects between nuclides which are not able to be considered by other methods. In addition, a new method was proposed to calculate effective cross section accurately for power reactor fuel subassembly where the new nuclear constant system cannot be applied. This method uses the sub-group method and the ultra fine energy group collision probability method. The microscopic effective cross sections obtained by this method agree with the reference values within 5% difference. (author)

  7. Comparison of Mycotic Keratitis with Nonmycotic Keratitis: An Epidemiological Study

    Directory of Open Access Journals (Sweden)

    Mohammad M. Khater

    2014-01-01

    Full Text Available Purpose. This work aims to study the problems encountered with and the different epidemiological features of patients with fungal keratitis. Patients and Methods. All cases with keratitis attending the Outpatient Clinic of Ophthalmology Department at Tanta University Hospital during three years from the first of January 2011 to the end of December 2013 were selected and carefully examined and cases with mycotic keratitis were further examined and investigated. Results. From 66303 attendants during this period with different complaints, there were 361 cases (0.54% with mycotic keratitis and 473 cases (0.71% of nonmycotic origin. Mycotic keratitis is common between 40 and 60 years, more in farmers (64%, families with large number and large crowding index, rural than urban residence, and patients with outdoor water sources and insanitary sewage disposal. Positive fungal cultures were obtained in 84.5% and were negative in 15.5% of cases in spite of their typical clinical findings for diagnosis and their improvement with antifungal therapy. Conclusion. Mycotic keratitis is more frequent in farmers, rural areas, outdoor water supply, insanitary sewage disposal, and patients preceded with organic trauma. Atypical clinical findings were found in some cases and not all cases improved with specific antifungal therapy.

  8. Deep Energy Retrofit Performance Metric Comparison: Eight California Case Studies

    Energy Technology Data Exchange (ETDEWEB)

    Walker, Iain; Fisher, Jeremy; Less, Brennan

    2014-06-01

    In this paper we will present the results of monitored annual energy use data from eight residential Deep Energy Retrofit (DER) case studies using a variety of performance metrics. For each home, the details of the retrofits were analyzed, diagnostic tests to characterize the home were performed and the homes were monitored for total and individual end-use energy consumption for approximately one year. Annual performance in site and source energy, as well as carbon dioxide equivalent (CO2e) emissions were determined on a per house, per person and per square foot basis to examine the sensitivity to these different metrics. All eight DERs showed consistent success in achieving substantial site energy and CO2e reductions, but some projects achieved very little, if any source energy reduction. This problem emerged in those homes that switched from natural gas to electricity for heating and hot water, resulting in energy consumption dominated by electricity use. This demonstrates the crucial importance of selecting an appropriate metric to be used in guiding retrofit decisions. Also, due to the dynamic nature of DERs, with changes in occupancy, size, layout, and comfort, several performance metrics might be necessary to understand a project’s success.

  9. Comparison of two impression techniques for auricular prosthesis: Pilot study

    Directory of Open Access Journals (Sweden)

    Kasim Mohamed, MDS

    2013-11-01

    Full Text Available The purpose of this article was to compare the accuracy of a new impression technique, the triple-layer impression technique (TLIT, with the conventional impression technique (CIT to fabricate an auricular prosthesis. Fifteen male subjects (aged 22–45 yr were selected. Ten markings were made on the subject's ear (super aurale [sa], sub aurale [sba], pre aurale [pra], post aurale [poa], A, A1, B, B1, C, and C1 and five measurements (sa'sba, pra–poa, A–A1, B–B1, and C–C1 were made. Custom-made trays were used to record impression in CIT and TLIT. Impressions were made using alginate, and models were cast with type IV gypsum product. Markings were transferred on the cast. Measurements were rechecked on the models. Distribution analysis of difference in measurements between the two impression techniques and the subject's actual values was evaluated. Sign test was used to analyze the statistical significance. Statistically significant differences were found in measurements A–A1, B–B1, and C–C1 between the two techniques when compared with the subject's actual dimensions (p < 0.01. TLIT was found to produce accurate models when compared with CIT. The TLIT used in the study was cost effective, less technique sensitive, and tailor made to reduce chairside orientation time during wax try-in appointments for rehabilitating patients, especially those with unilateral auricular defects.

  10. Pharmacy Student Perceptions of Pharmacist Prescribing: A Comparison Study

    Directory of Open Access Journals (Sweden)

    Theresa L. Charrois

    2013-11-01

    Full Text Available Several jurisdictions throughout the world, such as the UK and Canada, now have independent prescribing by pharmacists. In some areas of Canada, initial access prescribing can be done by pharmacists. In contrast, Australian pharmacists have no ability to prescribe either in a supplementary or independent model. Considerable research has been completed regarding attitudes towards pharmacist prescribing from the perspective of health care professionals, however currently no literature exists regarding pharmacy student views on prescribing. The primary objective of this study is to examine pharmacy student’s opinions and attitudes towards pharmacist prescribing in two different settings. Focus groups were conducted with selected students from two universities (one in Canada and one in Australia. Content analysis was conducted. Four main themes were identified: benefits, fears, needs and pharmacist roles. Students from the Australian University were more accepting of the role of supplementary prescribing. In contrast, the Canadian students felt that independent prescribing was moving the profession in the right direction. There were a number of similarities with the two groups with regards to benefits and fears. Although the two cohorts differed in terms of their beliefs on many aspects of prescribing, there were similarities in terms of fears of physician backlash and blurring of professional roles.

  11. Binding energy and nonlinear optical properties of an on-center hydrogenic impurity in a spherical quantum dot placed at the center of a cylindrical nano-wire: Comparison of hydrogenic donor and acceptor impurities

    Energy Technology Data Exchange (ETDEWEB)

    Safarpour, Gh., E-mail: safarpour.ghasem@gmail.com [Zarghan Branch, Islamic Azad University, Zarghan (Iran, Islamic Republic of); Novzari, M.; Izadi, M.A.; Niknam, E. [Zarghan Branch, Islamic Azad University, Zarghan (Iran, Islamic Republic of); Barati, M. [Science and Research Branch, Islamic Azad University, Fars (Iran, Islamic Republic of)

    2014-03-01

    The binding energies and corresponding wave functions of ground and first excited states (1s, 2p) of on-center hydrogenic donor and acceptor impurities are calculated using finite difference approximation in the effective mass framework. The on-center impurities are assumed to be in an InAs spherical quantum dot which is located at the center of a GaAs cylindrical nano-wire. To test the validity of applied method the eigenvalues of ground and first excited states are compared with reported results which have been calculated by finite element methods and it is shown that the finite difference approximation is more accurate in this particular case. In addition, the oscillator strength, linear, third-order nonlinear and total optical absorption coefficients and refractive index changes have been calculated for 1s–2p transition by means of the compact density matrix approach. The results show that presence of impurity causes a blue shift in optical spectrum which is larger for acceptor impurity. Also, the amplitude of absorption coefficient, refractive index changes and oscillator strength depend on the absence, presence and type of impurity. Moreover, it is found that the saturation condition can be tuned by type of impurity and critical incident optical intensity is enhanced in presence of acceptor impurity.

  12. Binding energy and nonlinear optical properties of an on-center hydrogenic impurity in a spherical quantum dot placed at the center of a cylindrical nano-wire: Comparison of hydrogenic donor and acceptor impurities

    International Nuclear Information System (INIS)

    The binding energies and corresponding wave functions of ground and first excited states (1s, 2p) of on-center hydrogenic donor and acceptor impurities are calculated using finite difference approximation in the effective mass framework. The on-center impurities are assumed to be in an InAs spherical quantum dot which is located at the center of a GaAs cylindrical nano-wire. To test the validity of applied method the eigenvalues of ground and first excited states are compared with reported results which have been calculated by finite element methods and it is shown that the finite difference approximation is more accurate in this particular case. In addition, the oscillator strength, linear, third-order nonlinear and total optical absorption coefficients and refractive index changes have been calculated for 1s–2p transition by means of the compact density matrix approach. The results show that presence of impurity causes a blue shift in optical spectrum which is larger for acceptor impurity. Also, the amplitude of absorption coefficient, refractive index changes and oscillator strength depend on the absence, presence and type of impurity. Moreover, it is found that the saturation condition can be tuned by type of impurity and critical incident optical intensity is enhanced in presence of acceptor impurity

  13. Knowledge domains cartography of the radiopharmacy center of IPEN - A case study

    International Nuclear Information System (INIS)

    Management of resources is effective only when the object is known in terms of their relevance, demand, availability, repositories and other pertinent characteristics that can influence its administration. Knowledge Management is not different and, in this case, knowledge mapping identifies resources, characterizes their attributes and repositories. An evaluation of this knowledge is also necessary in order to have a coherent Knowledge Management strategy that guarantees the continuity and the development of this resource according to the objectives and goals of the organization in terms of its vision of future. Evaluation allows measuring the critical character of the knowledge sources, facilitating the identification of those likely to add value and those that present risks the organization survival. This kind of diagnostic makes clear the Knowledge Management objectives and, consequently, unveil solutions that correspond to the organization's needs (capitalization and preservation; sharing, appropriation and knowledge creation). There are several ways to organize and to represent the knowledge resources of an organization. The approach here is a conceptual classification, that organizes the knowledge in a Cartography according to subjects, themes or purposes of common knowledge and it shows the decomposition of the activities of an organization under the point of view of knowledge domains. This model was used by Ermine. A Knowledge Management Project was applied in the Radiopharmacy Center (CR) of the Nuclear and Energetic Research Institute (IPEN), organ of the Nuclear Energy National Commission (CNEN) according to methodology following described. 1. CR was studied under the logic of its processes and its interfaces, considered as a Strategic Business Unit inside of the possible limits of a unit of IPEN. The macro processes of CR were identified from the analyze of the Quality Management documentation (Integrated Management Norms, Operational Procedures, Work

  14. Cytomegalovirus Pneumonia in Patients with Rheumatic Diseases After Immunosuppressive Therapy: A Single Center Study in China

    Institute of Scientific and Technical Information of China (English)

    Yu Xue; Li Jiang; Wei-Guo Wan; Yu-Ming Chen; Jiong Zhang; Zhen-Chun Zhang

    2016-01-01

    Background: Rheumatic diseases involve multiple organs that are affected by immunological mechanisms.Treatment with corticosteroids and immunosuppressive agents may also increase the frequency of infection.Cytomegalovirus (CMV) is a widespread herpes virus and a well-recognized pathogen, which causes an opportunistic and potentially fatal infection in immunocompromised patients.This retrospective study aimed to investigate the clinical and laboratory characteristics of CMV pneumonia in patients with rheumatic diseases after immunosuppressive therapy in a single center in Shanghai, China.Methods: Eight hundred and thirty-four patients with rheumatic diseases who had undergone CMV-DNA viral load tests were included, and the medical records of 142 patients who were positive for CMV-DNA in plasma samples were evaluated.GraphPad Prism version 5.013 (San Diego, CA, USA) was used to conduct statistical analysis.The correlation between CMV-DNA viral loads and lymphocyte counts was assessed using the Spearman rank correlation coefficient test.Significance between qualitative data was analyzed using Pearson's Chi-squared test.The cut-offthresholds for CMV-DNA viral load and lymphocyte count were determined by receiver operating characteristic (ROC) curve analysis.Results: One hundred and forty-two patients had positive CMV viral load tests.Of these 142 patients, 73 patients with CMV pneumonia were regarded as symptomatic, and the other 69 were asymptomatic.The symptomatic group received higher doses ofprednisolone (PSL) and more frequently immunosuppressants than the asymptomatic group (P < 0.01).The symptomatic group had lower lymphocyte counts, especially CD4+ T-cells, than the asymptomatic group (P < 0.01).By ROC curve analysis, when CD4+ T-cell count was <0.39 × 109/L, patients with rheumatic diseases were at high risk for symptomatic CMV infection.The CMV-DNA load was significantly higher in the symptomatic patients than that in asymptomatic patients (P < 0

  15. A study of electrical power network of renewable energies and water desalination research center using power quality phenomena and indices

    International Nuclear Information System (INIS)

    Renewable energies and water distillation research center (REWDRC) is a very strategic research facility and contains many important and critical industrial and electrical loads that must to be operated as a group to fulfill the requirements and the needs of the center in the operation of the main research facility of the center which a 10 MW reactor. Faults on the electrical or the industrial system can occur on many ways such as a malfunction in the questioned system, power quality related problem, or a failure of any of the loads (such as central ventilation or water circulation system or one of the substations) have a great diverse effect on the operation of the main research facility (reactor). In this research common problems due to power quality phenomena were studied, assessed through a assigning some power quality indices to the electrical network of the center so that the operational condition of the REWDRC electrical and industrial network could be evaluated. power quality indices (PQI) were assigned based on results of real time measurements at the points of common coupling of the network (PCC) and the initial power quality survey report. indices analysis was done using three methods which were the normalization method, method of comparing to the limit value and analysis of measurement data time function profile. As a result of this research a recommendation for safe operation against power quality disturbances was pointed out through a continuous monitoring of assigned power quality indices. (Author)

  16. Electronic structure of deep levels in silicon. A study of gold, magnesium, and iron centers in silicon

    International Nuclear Information System (INIS)

    The electronic structure of gold, magnesium and iron related deep centers in silicon is investigated. Their deep and shallow levels are studied by means of fourier transform spectroscopy, combined with uniaxial stress and Zeeman spectroscopy. The neutral substitutional gold center in silicon is investigated and the center is paramagnetic, S=1/2, with g||≅2.8 and g≅0, and has a static distortion. Reorientation between different equivalent distortions is observed even at 1.9 K. A gold pair center in silicon is studied and several line series, with a zero-phonon line followed by several phonon replicas, are observed. Uniaxial stress and Zeeman results reveal a trigonal symmetry of the center, which together with the high dissociation energy of 1.7 eV suggests that the center consists of two nearest-neighbor substitutional gold atoms. A divacancy model is employed to explain the electronic properties of the center. The interstitial magnesium double donor in silicon in its two charge states Mgo and Mg+ is investigated. Deviations in the binding energies of the excited states from those calculated within the effective-mass theory (EMT) are found and explained by a perturbation in the central-cell region. The quadratic Zeeman effect of shallow donors in silicon is analyzed within the framework of the EMT using a numerical approach. The wave functions are calculated in a discrete radial mesh and the Zeeman Hamiltonian has be evaluated for the lowest excited states for fields up to 6 T. The neutral interstitial iron defect in silicon gives rise to two sets of line spectra. The first set arises when an electron is excited to a shallow donor like state where the electron is decoupled from the Fe+ core which has a 4T1 ground state term. The second set arises when an excited electron of a 1 symmetry is coupled by exchange interaction to the core, yielding at 5T1 final state. Experiments determine the multiplet splitting of the 4T1 and 5T1 states due to spring

  17. The QUASAR reproducibility study, Part II: Results from a multi-center Arterial Spin Labeling test-retest study

    DEFF Research Database (Denmark)

    Petersen, Esben Thade; Mouridsen, Kim; Golay, Xavier;

    2010-01-01

    metabolism. So far, ASL has been restricted mostly to specialist centers due to a generally low SNR of the method and potential issues with user-dependent analysis needed to obtain quantitative measurement of cerebral blood flow (CBF). Here, we evaluated a particular implementation of ASL (called...... total of 284 healthy volunteers were scanned. Minimal operator dependence was assured by using an automatic planning tool and its accuracy and potential usefulness in multi-center trials was evaluated as well. Accurate repositioning between sessions was achieved with the automatic planning tool showing...

  18. Evaluation of leakage from a metal machining center using tracer gas methods: a case study.

    Science.gov (United States)

    Heitbrink, W A; Earnest, G S; Mickelsen, R L; Mead, K R; D'Arcy, J B

    1999-01-01

    To evaluate the efficacy of engineering controls in reducing worker exposure to metalworking fluids, an evaluation of an enclosure for a machining center during face milling was performed. The enclosure was built around a vertical metal machining center with an attached ventilation system consisting of a 25-cm diameter duct, a fan, and an air-cleaning filter. The evaluation method included using sulfur hexafluoride (SF6) tracer gas to determine the ventilation system's flow rate and capture efficiency, a respirable aerosol monitor (RAM) to identify aerosol leak locations around the enclosure, and smoke tubes and a velometer to evaluate air movement around the outside of the enclosure. Results of the tracer gas evaluation indicated that the control system was approximately 98% efficient at capturing tracer gas released near the spindle of the machining center. This result was not significantly different from 100% efficiency (p = 0.2). The measured SF6 concentration when released directly into the duct had a relative standard deviation of 2.2%; whereas, when releasing SF6 at the spindle, the concentration had a significantly higher relative standard deviation of 7.8% (p = 0.016). This increased variability could be due to a cyclic leakage at a small gap between the upper and lower portion of the enclosure or due to cyclic stagnation. Leakage also was observed with smoke tubes, a velometer, and an aerosol photometer. The tool and fluid motion combined to induce a periodic airflow in and out of the enclosure. These results suggest that tracer gas methods could be used to evaluate enclosure efficiency. However, smoke tubes and aerosol instrumentation such as optical particle counters or aerosol photometers also need to be used to locate leakage from enclosures. PMID:10635544

  19. Comparisons of treatment means when factors do not interact in two-factorial studies

    KAUST Repository

    Wei, Jiawei

    2011-05-06

    Scientists in the fields of nutrition and other biological sciences often design factorial studies to test the hypotheses of interest and importance. In the case of two-factorial studies, it is widely recognized that the analysis of factor effects is generally based on treatment means when the interaction of the factors is statistically significant, and involves multiple comparisons of treatment means. However, when the two factors do not interact, a common understanding among biologists is that comparisons among treatment means cannot or should not be made. Here, we bring this misconception into the attention of researchers. Additionally, we indicate what kind of comparisons among the treatment means can be performed when there is a nonsignificant interaction among two factors. Such information should be useful in analyzing the experimental data and drawing meaningful conclusions.

  20. Advancing LGBT Health at an Academic Medical Center: A Case Study.

    Science.gov (United States)

    Yehia, Baligh R; Calder, Daniel; Flesch, Judd D; Hirsh, Rebecca L; Higginbotham, Eve; Tkacs, Nancy; Crawford, Beverley; Fishman, Neil

    2015-12-01

    Academic health centers are strategically positioned to impact the health of lesbian, gay, bisexual and transgender (LGBT) populations by advancing science, educating future generations of providers, and delivering integrated care that addresses the unique health needs of the LGBT community. This report describes the early experiences of the Penn Medicine Program for LGBT Health, highlighting the favorable environment that led to its creation, the mission and structure of the Program, strategic planning process used to set priorities and establish collaborations, and the reception and early successes of the Program. PMID:26788778