Exit Prostitution

DEFF Research Database (Denmark)

Henriksen, Theresa Dyrvig; Aslaug Kjær, Agnete; Christensen, Gunvor

2015-01-01

Dette midtvejsnotat omhandler projektet ”Exit prostitution”. Exit-projektet blev påbegyndt i april 2012 og løber til udgangen af 2015 og befinder sig i øjeblikket midtvejs i projektets afprøvningsfase. I projektet anvendes metoden Critical Time Intervention (CTI), der er en evidensbaseret...... til det. Exit-projektet er dermed en central socialpolitisk indsats overfor borgere i prostitution i det danske samfund. I dette notat belyser vi midtvejsresultater for, hvordan udviklingen er for de borgere, der er nået halvt igennem et CTI-forløb. I den afsluttende evaluering af projektet i 2015 vil...

Exam-busting tips how to pass exams the easy way

CERN Document Server

Anderson, Gary

2005-01-01

The one-stop expert guide to coordinating your lifestyle and your revision during any exam period, for all levels of education For many people, exams represent weeks of furious last-minute cramming and days of torturous apocalyptic judgement. This guide is designed to ease that academic angst. It's time to say goodbye to anxious exam-day tension and embrace the tranquillity of organization.

Adolescents' sleep in low-stress and high-stress (exam) times: a prospective quasi-experiment

NARCIS (Netherlands)

Dewald, J.F.; Meijer, A.M.; Oort, F.J.; Kerkhof, G.A.; Bögels, S.M.

2014-01-01

This prospective quasi-experiment (N=175; mean age: 15.14 years) investigates changes in adolescents' sleep from low-stress (regular school week) to high-stress times (exam week) and examines the (moderating) role of chronic sleep reduction, baseline stress, and gender. Sleep was monitored over

Adolescents' Sleep in Low-Stress and High-Stress (Exam) Times: A Prospective Quasi-Experiment

NARCIS (Netherlands)

Dewald, Julia F.; Meijer, Anne Marie; Oort, Frans J.; Kerkhof, Gerard A.; Bögels, Susan M.

2014-01-01

This prospective quasi-experiment (N = 175; mean age = 15.14 years) investigates changes in adolescents' sleep from low-stress (regular school week) to high-stress times (exam week), and examines the (moderating) role of chronic sleep reduction, baseline stress, and gender. Sleep was monitored over

Exit prostitution

DEFF Research Database (Denmark)

Mehlsen, Line; Aslaug Kjær, Agnete; Amilon, Anna

2016-01-01

Dette statusnotat for projektet ”Exit Prostitution” belyser de foreløbige resultater og tendenser for projektet. Exit Prostitution løb oprindeligt fra april 2012 til udgangen af 2015, men med en nylig forlængelse løber projektet til udgangen af 2016. Projektet befinder sig således i slutningen af...... afprøvet med succes i forhold til hjemløshed både nationalt og internationalt. Målet med anvendelsen af metoden i forhold til målgruppen for Exit Prostitution er, at borgere med prostitutionserfaring, som ønsker at ophøre med salg af seksuelle ydelser eller ønsker at opleve en forbedring af deres...

X-Ray Exam: Pelvis

Science.gov (United States)

... Staying Safe Videos for Educators Search English Español X-Ray Exam: Pelvis KidsHealth / For Parents / X-Ray Exam: ... Ray Exam: Hip Broken Bones Getting an X-ray (Video) X-Ray (Video) View more Partner Message About Us ...

Digital rectal exam

Science.gov (United States)

... this page: //medlineplus.gov/ency/article/007069.htm Digital rectal exam To use the sharing features on this page, please enable JavaScript. A digital rectal exam is an examination of the lower ...

Exams: The Secret Ingredients

Science.gov (United States)

DiJulio, Betsy

2012-01-01

This year, many high-school teachers in the district where the author teaches experienced exam anxiety because midterms--as they had come to know and love them--were no more. For a variety of reasons, the semester exam schedule looked very different. More to the point is the new philosophy about exam content and format that underpinned the…

USEFUL: Ultrasound Exam for Underlying Lesions Incorporated into Physical Exam

Directory of Open Access Journals (Sweden)

Jon Steller

2014-05-01

Full Text Available Introduction: The Ultrasound Screening Exam for Underlying Lesions (USEFUL was developed in an attempt to establish a role for bedside ultrasound in the primary and preventive care setting. It is the purpose of our pilot study to determine if students were first capable of performing all of the various scans required of our USEFUL while defining such an ultrasound-assisted physical exam that would supplement the standard hands-on physical exam in the same head-to-toe structure. We also aimed to assess the time needed for an adequate exam and analyze if times improved with repetition and previous ultrasound training. Methods: Medical students with ranging levels of ultrasound training received a 25-minute presentation on our USEFUL followed by a 30-minute hands-on session. Following the hands-on session, the students were asked to perform a timed USEFUL on 2-3 standardized subjects. All images were documented as normal or abnormal with the understanding that an official detailed exam would be performed if an abnormality were to be found. All images were read and deemed adequate by board eligible emergency medicine ultrasound fellows. Results: Twenty-six exams were performed by 9 students. The average time spent by all students per USEFUL was 11 minutes and 19 seconds. Students who had received the University of California, Irvine School of Medicine’s integrated ultrasound curriculum performed the USEFUL significantly faster (p< 0.0025. The time it took to complete the USEFUL ranged from 6 minutes and 32 seconds to 17 minutes, and improvement was seen with each USEFUL performed. The average time to complete the USEFUL on the first standardized patient was 13 minutes and 20 seconds, while 11 minutes and 2 seconds, and 9 minutes and 20 seconds were spent performing the exam on the second and third patient, respectively. Conclusion: Students were able to effectively complete all scans required by the USEFUL in a timely manner. Students who have

29 CFR 1917.122 - Employee exits.

Science.gov (United States)

2010-07-01

... 29 Labor 7 2010-07-01 2010-07-01 false Employee exits. 1917.122 Section 1917.122 Labor Regulations...) MARINE TERMINALS Terminal Facilities § 1917.122 Employee exits. (a) Employee exits shall be clearly marked. (b) If an employee exit is not visible from employees' work stations, directional signs...

76 FR 58565 - Proposed Information Collection (Exam for Housebound Status or Permanent Need for Regular Aid and...

Science.gov (United States)

2011-09-21

... DEPARTMENT OF VETERANS AFFAIRS [OMB Control No. 2900-0721] Proposed Information Collection (Exam... PRA of 1995 (Pub. L. 104-13; 44 U.S.C. 3501-3521), Federal agencies must obtain approval from the... request for comment is being made pursuant to Section 3506(c)(2)(A) of the PRA. With respect to the...

Do Collaborative Exams Really Promote Learning?

Science.gov (United States)

Miller, Scott; James, C. Renee

2018-01-01

Collaborative, two-stage exams are becoming more popular in physics and astronomy courses, and their supposed benefits in terms of collaborative learning have been reported in the field of physics. In a collaborative, two-stage exam, students first complete an exam individually. Once that portion of the exam is over, students then retake all or part of the exam within a group, where they are able to discuss the questions with their peers and arrive at a common answer. While there are a number of papers that discuss the purported benefits of this method from a collaborative point of view, few, if any discuss the actual benefits in terms of student learning. One paper found that when students were presented with previous exam questions a few weeks later, they performed better on questions covered previously in the group portion of the exam compared to similar questions which were tested but not part of the group portion. But, when students were retested on exam questions which were administered earlier, roughly six to seven weeks beforehand, no difference was found in their performance on the two sets of questions.We present preliminary findings comparing student performance levels on multiple sets of exam questions administered to students in an introductory astronomy course where two-stage exams are administered. Questions were administered first in an exam during the course of the semester, then again during a final exam. During the semester exams, one set of questions was also contained within the group portion of the exam, while questions similar in concept and difficulty were not. A comparison of student performance on these two sets of questions are compared to evaluate the usefulness of collaborative exams to promote learning.

[Why are some high achievers on the course final exam unsuccessful on the proficiency exam in English?].

Science.gov (United States)

Matsunuma, Mitsuyasu

2009-04-01

This study examined why some high achievers on the course final exam were unsuccessful on the proficiency exam in English. We hypothesized that the learning motives and learning behaviors (learning strategy, learning time) had different effects on the outcomes of the exams. First, the relation between the variables was investigated using structural equation modeling. Second, the learning behaviors of students who got good marks on both exams were compared with students who did well only on the course final exam. The results were as follows. (a) Learning motives influenced test performance via learning behaviors. (b) Content-attached motives influenced all variables concerning learning behaviors. (c) Content-detached motives influenced all variables concerning learning behaviors that were related only to the course final exam. (d) The students who got good marks on both exams performed the learning behaviors that were useful on the proficiency exam more frequently than the students who did well only on the course final exam.

Exit Polls and Voter Turnout

DEFF Research Database (Denmark)

Andersen, Asger Lau; Jensen, Thomas

2014-01-01

After the 2009 referendum on a proposed change to the Danish Law of Succession, it was widely claimed that the early publication of exit poll results changed the rate of turnout and eventually the outcome. We investigate this claim and contribute to the wider debate on the implications of exit...... polls by setting up and analyzing a formal model. We find that the introduction of an exit poll influences the incentive to vote both before and after the poll is published, but the signs of the effects are generally ambiguous. The observation that exit polls influence the incentive to vote even before...

CompTIA Linux+ study guide exam LX0-103 and exam LX0-104

CERN Document Server

Bresnahan, Christine

2015-01-01

CompTIA Authorized Linux+ prepCompTIA Linux+ Study Guide is your comprehensive study guide for the Linux+ Powered by LPI certification exams. With complete coverage of 100% of the objectives on both exam LX0-103 and exam LX0-104, this study guide provides clear, concise information on all aspects of Linux administration, with a focus on the latest version of the exam. You'll gain the insight of examples drawn from real-world scenarios, with detailed guidance and authoritative coverage of key topics, including GNU and Unix commands, system operation, system administration, system services, secu

Firm Exit, Technological Progress and Trade

DEFF Research Database (Denmark)

Schröder, Philipp; Sørensen, Allan

The dynamics of export market exit and firm closure have found limited attention in the new heterogeneous-firms trade literature. In fact, several of the predictions on firm survival and exit stemming from this new class of models are at odds with the stylized facts. Empirically, higher productiv......The dynamics of export market exit and firm closure have found limited attention in the new heterogeneous-firms trade literature. In fact, several of the predictions on firm survival and exit stemming from this new class of models are at odds with the stylized facts. Empirically, higher...... productivity firms survive longer, most firm closures are young firms, higher productivity exporters are more likely to continue to export compared to less productive exporters and market exits as well as firm closures are typically preceded by periods of contracting market shares. The present paper shows...... liberalization on export market exit and firm closure....

Pharyngoceles aspects in imaging exams

International Nuclear Information System (INIS)

Diniz, Fabio de Vilhena; Nakamura, Olavo Kyosen; Grassi, Caio Giometti; Barbosa Junior, Alcino Alves; Gomes, Regina Lucia Elia; Daniel, Mauro Miguel; Garcia, Marcio Ricardo Taveira; Funari, Marcelo Buarque de Gusmao

2010-01-01

Objective: the present study is aimed at showing the different characteristics of pharyngoceles in imaging exams (video fluoroscopic swallowing exam [VFSE] and computed tomography) and its correlation with clinical presentation. Material and method: pharyngocele cases were selected in imaging exams (video fluoroscopic swallowing exam [VFSE] and computed tomography) realized in our service, realizing clinical presentation correlation. Results: pharyngocele presents frequently with small dimensions and narrow orifice. When the size enlarges, clinical presentation is more evident and diverse, which can confuse with other cervical lesions that enlarge with Valsalva maneuver. Differential diagnosis can be done by imaging evaluation. Conclusion: we intended to demonstrate that many times pharyngocele can be presented with different aspects, not always being easy to recognize by clinics or imaging exams, but its diagnosis must be always remembered in our daily practice. (author)

LPIC-1 Linux Professional Institute certification study guide exam 101-400 and exam 102-400

CERN Document Server

Bresnahan, Christine

2015-01-01

Thorough LPIC-1 exam prep, with complete coverage and bonus study tools LPIC-1Study Guide is your comprehensive source for the popular Linux Professional Institute Certification Level 1 exam, fully updated to reflect the changes to the latest version of the exam. With 100% coverage of objectives for both LPI 101 and LPI 102, this book provides clear and concise information on all Linux administration topics and practical examples drawn from real-world experience. Authoritative coverage of key exam topics includes GNU and UNIX commands, devices, file systems, file system hierarchy, user interf

MCSE Core Elective Exams in a Nutshell Covers exams 70-270, 70-297, and 70-298

CERN Document Server

Bhardwaj, Pawan

2006-01-01

For Windows XP and Windows Server 2003 administrators preparing forMicrosoft Certified Systems Engineer (MCSE) core exam 70-270, and core exams 70-297, and 70-298, this book is invaluable. Not only does it provide the resources you need to succeed on the exams, but to succeed in the real world as well. Think of this book as the notes you would have taken if you were to capture every essential nugget of information related to the skills measured in the core elective exams. To begin with, MCSE Core Elective Exams in a Nutshell allows you to see all of the topics expected for mastery in each

X-Ray Exam: Forearm

Science.gov (United States)

... Staying Safe Videos for Educators Search English Español X-Ray Exam: Forearm KidsHealth / For Parents / X-Ray Exam: ... Muscles, and Joints Broken Bones Getting an X-ray (Video) X-Ray (Video) View more Partner Message About Us ...

X-Ray Exam: Foot

Science.gov (United States)

... Staying Safe Videos for Educators Search English Español X-Ray Exam: Foot KidsHealth / For Parents / X-Ray Exam: ... Muscles, and Joints Broken Bones Getting an X-ray (Video) X-Ray (Video) View more Partner Message About Us ...

X-Ray Exam: Wrist

Science.gov (United States)

... Staying Safe Videos for Educators Search English Español X-Ray Exam: Wrist KidsHealth / For Parents / X-Ray Exam: ... Muscles, and Joints Broken Bones Getting an X-ray (Video) X-Ray (Video) View more Partner Message About Us ...

X-Ray Exam: Finger

Science.gov (United States)

... Staying Safe Videos for Educators Search English Español X-Ray Exam: Finger KidsHealth / For Parents / X-Ray Exam: ... Muscles, and Joints Broken Bones Getting an X-ray (Video) X-Ray (Video) View more Partner Message About Us ...

Promoting Exit from Violent Extremism

DEFF Research Database (Denmark)

Dalgaard-Nielsen, Anja

2013-01-01

A number of Western countries are currently adding exit programs targeting militant Islamists to their counterterrorism efforts. Drawing on research into voluntary exit from violent extremism, this article identifies themes and issues that seem to cause doubt, leading to exit. It then provides a ...... the influence attempt as subtle as possible, use narratives and self-affirmatory strategies to reduce resistance to persuasion, and consider the possibility to promote attitudinal change via behavioral change as an alternative to seek to influence beliefs directly....

Optimal Weighting for Exam Composition

Directory of Open Access Journals (Sweden)

Sam Ganzfried

2018-03-01

Full Text Available A problem faced by many instructors is that of designing exams that accurately assess the abilities of the students. Typically, these exams are prepared several days in advance, and generic question scores are used based on rough approximation of the question difficulty and length. For example, for a recent class taught by the author, there were 30 multiple choice questions worth 3 points, 15 true/false with explanation questions worth 4 points, and 5 analytical exercises worth 10 points. We describe a novel framework where algorithms from machine learning are used to modify the exam question weights in order to optimize the exam scores, using the overall final score as a proxy for a student’s true ability. We show that significant error reduction can be obtained by our approach over standard weighting schemes, i.e., for the final and midterm exam, the mean absolute error for prediction decreases by 90.58% and 97.70% for linear regression approach respectively resulting in better estimation. We make several new observations regarding the properties of the “good” and “bad” exam questions that can have impact on the design of improved future evaluation methods.

X-Ray Exam: Hip

Science.gov (United States)

... for Educators Search English Español X-Ray Exam: Hip KidsHealth / For Parents / X-Ray Exam: Hip What's in this article? What It Is Why ... You Have Questions Print What It Is A hip X-ray is a safe and painless test ...

X-Ray Exam: Ankle

Science.gov (United States)

... for Educators Search English Español X-Ray Exam: Ankle KidsHealth / For Parents / X-Ray Exam: Ankle What's in this article? What It Is Why ... You Have Questions Print What It Is An ankle X-ray is a safe and painless test ...

PMP Project Management Professional Exam Study Guide

CERN Document Server

Heldman, Kim

2011-01-01

Completely updated for the 2011 version of the PMP exam! If you're preparing for the Project Management Professional (PMP) exam, this thorough book is what you need. Not only does it reflect the very latest version of the exam, it is written by popular project management expert Kim Heldman—author of the five previous editions of this top-selling book—and it also includes a CD with practice exams, exam prep software, electronic flashcards, and over two hours of additional audio review. All exam objectives, as well as essential PMP topics, concepts, and key terms are covered.Prepares

The Latin Matura exam

Directory of Open Access Journals (Sweden)

Tea Dolenc

2003-12-01

Full Text Available In students' opinion the tasks of this year's Pre-Matura exam are neither too easy nor too difficult. 51 % of  the students claim that the translation from Slovene to Latin is the most difficult task, which is not surprising. The students have to recognise the appropriate grammatical constructions without the help of any comments. In this way they can show their autonomy in the use of  the language. Very high quality of the Latin Matura exam tasks can be clearly seen from graph 3. Namely, the students have quite different opinions on which task is the most difficult and which one the easiest. This means that each student can find the type of a task that suits them most and so they can excel in that particular area. At the oral part of the exam 46 % of the students would like to eliminate the grammar question, as they find it difficult to define grammar rules precisely, while they do not have any problems using them in a sentence. Quite surprisingly there are 20 % who dislike the question from culture and civilisation. Their main argument is that in this way they would be able to save a lot of time and so concentrate on other areas. According to the students, the good points of the Latin Matura exam are: a better insight into Latin language and Roman culture, and a good foundation for further study at the university. As far as the bad points of the exam are concerned, they mostly complain about the translation from Latin to Slovene, as they believe they do not have a lot of freedom in translating. They also wish there were more books with different types of  Matura exercises. Teachers mainly agree with their students, but they also pointed out a certain problem: it can be quite tempting to deal only with the topics appearing at the Latin Matura exam and eliminate all others. Namely, every teacher wants to prepare their students for the exam in the best possible way, as they feel their pedagogical and  professional skills are tested too.

Adequate procedures for specific exams

International Nuclear Information System (INIS)

Staevie, G.L.G.; Gattringer, D.K.; Dal Mas, C.R.; Tessman, M.

1996-01-01

Some ideal procedures for specific radiographic exams are briefly presented. The aim is to improve the quality standard, establishing a specific method for each exam in order to decrease films waste and reduce the patient dose exposure

Spoiled Onions: Exposing Malicious Tor Exit Relays

OpenAIRE

Winter, Philipp; Lindskog, Stefan

2014-01-01

Several hundred Tor exit relays together push more than 1 GiB/s of network traffic. However, it is easy for exit relays to snoop and tamper with anonymised network traffic and as all relays are run by independent volunteers, not all of them are innocuous. In this paper, we seek to expose malicious exit relays and document their actions. First, we monitored the Tor network after developing a fast and modular exit relay scanner. We implemented several scanning modules for detecting common attac...

The Veterans Affairs Saint Louis University mental status exam (SLUMS exam) and the Mini-mental status exam as predictors of mortality and institutionalization.

Science.gov (United States)

Cruz-Oliver, D M; Malmstrom, T K; Allen, C M; Tumosa, N; Morley, J E

2012-07-01

To evaluate predictive validity of cognitive dysfunction of the Saint Louis University mental status (SLUMS) exam or mini-mental state exam (MMSE) for institutionalization and mortality after 7.5-years. Longitudinal study. Geriatric Research, Education and Clinical Center Veterans Affairs Hospital St. Louis, MO. Patients (N=705) were screened for cognitive dysfunction in 2003 using the SLUMS exam and MMSE, and mortality and institutionalization up to 7.5-years later were evaluated as outcome measures. The associations between outcome measures and MMSE and SLUMS exam total scores, and cognitive status were examined using Kaplan-Meier curves and Cox proportional-hazards regression. Five hundred thirty-three charts were reviewed, 176/533(33%) patients had died and 31/526 (6%) were institutionalized during 7.5-year follow-up period. All subjects were male with a mean age of 75 years and most had high school education or greater (71%). MMSE dementia, SLUMS dementia (ps<.001) and MCI (p<.05) groups had significantly lower survival rates than normal cognition group in the Kaplan-Meier curves. Scores classified as dementia on SLUMS (HR=2.4, 95% CI 1.6-3.7; p <.001) or MMSE (HR=2.3, 95% CI 1.5-3.6; p <.001) both predicted mortality and, also, institutionalization (SLUMS: HR=3.5, 95% CI 1.3-9.1; p <.01; MMSE: HR=3.8, 95% CI 1.6-9.0; p <.001) after adjustment for covariates. Unadjusted SLUMS exam MCI predicted morality (HR=1.5, 95% CI 1.1-2.2; p <.019) but not institutionalization. The SLUMS exam and MMSE both predict mortality and institutionalization for male patients screened as positive for dementia.

Understanding international exit from a non-economic and emotional perspective: the case of Taiwanese entrepreneurs exit China

OpenAIRE

Lin, Yangpei

2015-01-01

I investigate why Taiwanese entrepreneurs who have invested in China exit. Viewed from the non-economic perspective, there are three main themes in this thesis. Theme A focuses on the non-economic variables in international exit. Theme B examines how incident-generated emotions shape entrepreneur’s actions in internationalization. Theme C presents an overview of the decision-making of international exit, summarizing the finding in Theme A and Theme B and revisiting the theor...

ITIL Foundation exam study guide

CERN Document Server

Gallacher, Liz

2012-01-01

Everything you need to prepare for the ITIL exam The ITIL (Information Technology Infrastructure Library) exam is the ultimate certification for IT service management. This essential resource is a complete guide to preparing for the ITIL Foundation exam and includes everything you need for success. Organized around the ITIL Foundation syllabus, the study guide addresses the ITIL Service Lifecycles, the ITIL processes, roles, and functions, and also thoroughly explains how the Service Lifecycle provides effective and efficient IT services. Offers an introduction to IT service management and ITI

14 CFR 25.809 - Emergency exit arrangement.

Science.gov (United States)

2010-01-01

... moveable door or hatch in the external walls of the fuselage, allowing an unobstructed opening to the... event of failure of the primary system. Manual operation of the exit (after failure of the primary... during flight. (i) Each emergency exit must have a means to retain the exit in the open position, once...

Video exams and the external examiners

DEFF Research Database (Denmark)

Qvist, Palle

to the Master’s programme. The programme offers streamed videos in combination with other learning resources. Oral exams have been mediated with the help of Skype and later with Adobe Connect Professional. It has for all participants - students, examiners and external examiners – been both a challenge...... and an opportunity which has brought about new knowledge and experience. All students in the MPBL Master’s programme responded to a questionnaire [1] that they did not cheat or receive any help from outside. It was also shown that the more experience the respondents had with video exams, the more satisfied they were...... with the exams. Almost all respondents thought that video exams gave the external examiner the possibility to ensure that the demands were in accordance with the defined outcomes and see to that the exams were completed in accordance with the rules. This paper presents results from a questionnaire focusing...

Quantum exam

International Nuclear Information System (INIS)

Nguyen, Ba An

2006-01-01

Absolutely and asymptotically secure protocols for organizing an exam in a quantum way are proposed basing judiciously on multipartite entanglement. The protocols are shown to stand against common types of eavesdropping attack

Radiation exams in occupational medical evaluations

International Nuclear Information System (INIS)

Gelsleichter, A.M.; Hunh, A.; Nandi, D.M.

2017-01-01

Introduction: In occupational medicine, medical care must be geared toward the prevention of worker health. However, occupational medical exams often seek only through rigorous screening, reduce absenteeism, and thus increase productivity. To meet this goal, many institutions include radiological examinations indiscriminately in their medical and expert evaluations, contrary to the principle of justification. Objective: To provide a reflection about the presence of radiological exams in occupational medical evaluations. Methodology: Literary review including legislation related to the research topic. Results: Portaria 453/98 ANVISA prohibits the performance of radiological examinations for employment or expert purposes, except in cases where the exam may bring a benefit to the health of the individual examined or to society. However, in some situations the Norma Regulamentadora number 7 of the Ministry of Labor and Employment provides for radiological exams as a parameter for monitoring occupational exposure. Article 168 of the Consolidation of Labor Laws also prescribes that additional examinations may be required, at the medical discretion, to determine the physical and mental fitness of the employee for the job. Conclusion: Although there are legal provisions that prohibit and others that allow radiological exams in medical occupational evaluations, companies and institutions should take into account that any radiological exam has a risk involved and should not request them in a compulsory and indiscriminate manner. Radiological exams are only permissible to elucidate the diagnostic hypothesis produced by clinical evaluation, in order to provide a real benefit for the individual

Pelvic Exam

Science.gov (United States)

... each step so that nothing comes as a surprise to you. After the pelvic exam After the ... Clinic does not endorse any of the third party products and services advertised. Advertising and sponsorship policy ...

Clinic exam room design: present and future.

Science.gov (United States)

Freihoefer, Kara; Nyberg, Gary; Vickery, Christine

2013-01-01

This article aims to deconstruct various design qualities and strategies of clinic exam rooms, and discuss how they influence users' interaction and behavior in the space. Relevant literature supports the advantages and disadvantages of different design strategies. Annotated exam room prototypes illustrate the design qualities and strategies discussed. Advancements in technology and medicine, along with new legislative policies, are influencing the way care providers deliver care and ultimately clinic exam room designs. The patient-centered medical home model has encouraged primary care providers to make patients more active leaders of their health plan which will influence the overall functionality and configuration of clinic exam rooms. Specific design qualities discussed include overall size, location of doors and privacy curtains, positioning of exam tables, influence of technology in the consultation area, types of seating, and placement of sink and hand sanitizing dispensers. In addition, future trends of exam room prototypes are presented. There is a general lack of published evidence to support design professionals' design solutions for outpatient exam rooms. Future research should investigate such topics as the location of exam tables and privacy curtains as they relate to patient privacy; typical size and location of consultation table as it relates to patient connection and communication; and placement of sinks and sanitization dispensers as they relate to frequency and patterns of usage. Literature review, outpatient, technology, visual privacy.

Towards A Model of Identity and Role Exit

Directory of Open Access Journals (Sweden)

Jason S. Milne

2011-11-01

Full Text Available Explanations of role exit often focus on how factors associated with a specific role that affect whether the individual will exit a role or not. Other research explains how identities affect our performance in a role. However, no one has yet to demonstrate the connection between role-set factors and identities, and role exit. Using data from a survey of 940 current and former soccer referees, this paper provides a model of role exit that involves a complex of processes that include role-set factors (structural and cultural factors associated with a specific role and identity processes. Specifically, this paper demonstrates that, other than role conflict, identity processes explain the relationship between role-set factors and role exit. The model provides a beginning method for understanding the connection between identities and role exit.

Attendance and Exam Performance at University

OpenAIRE

David O. Allen; Don J. Webber

2006-01-01

Marburger (2006) explored the link between absenteeism and exam performance by assessing the impact on absenteeism of removing a university wide policy of mandatory attendance for a single class. His results indicate that while an attendance policy has a strong impact on reducing absenteeism the link between absenteeism and exam performance is weak.This paper presents an alternative exploration into the link between absenteeism and exam performance by assessing the impact of implementing a mo...

Physics Exam Preparation: A Comparison of Three Methods

Science.gov (United States)

Fakcharoenphol, Witat; Stelzer, Timothy

2014-01-01

In this clinical study on helping students prepare for an exam, we compared three different treatments. All students were asked to take a practice exam. One group was then given worked-out solutions for that exam, another group was given the solutions and targeted exercises to do as homework based on the result of their practice exam, and the…

Security+ study guide study guide and practice exam

CERN Document Server

Dubrawsky, Ido; Dubrawsky

2007-01-01

Over 700,000 IT Professionals Have Prepared for Exams with Syngress Authored Study GuidesThe Security+ Study Guide & Practice Exam is a one-of-a-kind integration of text and and Web-based exam simulation and remediation. This system gives you 100% coverage of official CompTIA Security+ exam objectives plus test preparation software for the edge you need to achieve certification on your first try! This system is comprehensive, affordable, and effective!* Completely Guaranteed Coverage of All Exam ObjectivesAll five Security+ domains are covered in full: General Securi

Cognitive Difficulty and Format of Exams Predicts Gender and Socioeconomic Gaps in Exam Performance of Students in Introductory Biology Courses

Science.gov (United States)

Wright, Christian D.; Eddy, Sarah L.; Wenderoth, Mary Pat; Abshire, Elizabeth; Blankenbiller, Margaret; Brownell, Sara E.

2016-01-01

Recent reform efforts in undergraduate biology have recommended transforming course exams to test at more cognitively challenging levels, which may mean including more cognitively challenging and more constructed-response questions on assessments. However, changing the characteristics of exams could result in bias against historically underserved groups. In this study, we examined whether and to what extent the characteristics of instructor-generated tests impact the exam performance of male and female and middle/high- and low-socioeconomic status (SES) students enrolled in introductory biology courses. We collected exam scores for 4810 students from 87 unique exams taken across 3 yr of the introductory biology series at a large research university. We determined the median Bloom’s level and the percentage of constructed-response questions for each exam. Despite controlling for prior academic ability in our models, we found that males and middle/high-SES students were disproportionately favored as the Bloom’s level of exams increased. Additionally, middle/high-SES students were favored as the proportion of constructed-response questions on exams increased. Given that we controlled for prior academic ability, our findings do not likely reflect differences in academic ability level. We discuss possible explanations for our findings and how they might impact how we assess our students. PMID:27252299

CompTIA Security+ Review Guide Exam SY0-301

CERN Document Server

Stewart, James M

2011-01-01

Reinforce your preparation for CompTIA's new Security+ exam with this focused review tool Before you take CompTIA's new Security+ exam SY0-301, reinforce your learning with a thorough review and lots of practice. The new edition of this concise guide helps you do just that. It covers all six domains of exam SY0-301, all exam objectives, and includes a helpful "Exam Essentials" section after each domain to help you zero in on what you need to know for the exam. A companion CD offers additional study tools, including two complete practice exams, over a hundred electronic flashcards, and more.Rev

Exit or revival?

International Nuclear Information System (INIS)

Anon.

2001-01-01

The answer given by the international representative at the colloquium:'nuclear: exit or revival? ' was tending towards the revival. The international, democratic, ecological and of energy policy stakes are tackled. (N.C.)

Radiation exams in occupational medical evaluations; Exames radiológicos em avaliações médico ocupacionais

Energy Technology Data Exchange (ETDEWEB)

Gelsleichter, A.M.; Hunh, A.; Nandi, D.M., E-mail: alyson.marcos@gmail.com [Departamento Acadêmico de Saúde e Serviços - DASS, Instituto Federal de Santa Catarina - IFSC, Florianópolis/SC (Brazil)

2017-07-01

Introduction: In occupational medicine, medical care must be geared toward the prevention of worker health. However, occupational medical exams often seek only through rigorous screening, reduce absenteeism, and thus increase productivity. To meet this goal, many institutions include radiological examinations indiscriminately in their medical and expert evaluations, contrary to the principle of justification. Objective: To provide a reflection about the presence of radiological exams in occupational medical evaluations. Methodology: Literary review including legislation related to the research topic. Results: Portaria 453/98 ANVISA prohibits the performance of radiological examinations for employment or expert purposes, except in cases where the exam may bring a benefit to the health of the individual examined or to society. However, in some situations the Norma Regulamentadora number 7 of the Ministry of Labor and Employment provides for radiological exams as a parameter for monitoring occupational exposure. Article 168 of the Consolidation of Labor Laws also prescribes that additional examinations may be required, at the medical discretion, to determine the physical and mental fitness of the employee for the job. Conclusion: Although there are legal provisions that prohibit and others that allow radiological exams in medical occupational evaluations, companies and institutions should take into account that any radiological exam has a risk involved and should not request them in a compulsory and indiscriminate manner. Radiological exams are only permissible to elucidate the diagnostic hypothesis produced by clinical evaluation, in order to provide a real benefit for the individual.

Exit from Synchrony in Joint Improvised Motion.

Directory of Open Access Journals (Sweden)

Assi Dahan

Full Text Available Motion synchrony correlates with effective and well-rated human interaction. However, people do not remain locked in synchrony; Instead, they repeatedly enter and exit synchrony. In many important interactions, such as therapy, marriage and parent-infant communication, it is the ability to exit and then re-enter synchrony that is thought to build strong relationship. The phenomenon of entry into zero-phase synchrony is well-studied experimentally and in terms of mathematical modeling. In contrast, exit-from-synchrony is under-studied. Here, we focus on human motion coordination, and examine the exit-from-synchrony phenomenon using experimental data from the mirror game paradigm, in which people perform joint improvised motion, and from human tracking of computer-generated stimuli. We present a mathematical mechanism that captures aspects of exit-from-synchrony in human motion. The mechanism adds a random motion component when the accumulated velocity error between the players is small. We introduce this mechanism to several models for human coordinated motion, including the widely studied HKB model, and the predictor-corrector model of Noy, Dekel and Alon. In all models, the new mechanism produces realistic simulated behavior when compared to experimental data from the mirror game and from tracking of computer generated stimuli, including repeated entry and exit from zero-phase synchrony that generates a complexity of motion similar to that of human players. We hope that these results can inform future research on exit-from-synchrony, to better understand the dynamics of coordinated action of people and to enhance human-computer and human-robot interaction.

Estudo retrospectivo dos níveis de ácido hipúrico urinário em exames de toxicologia ocupacional A retrospective study analysis of urinary hippuric acid levels in occupational toxicology exams

Directory of Open Access Journals (Sweden)

Kelly Cristina Gonzalez

2010-06-01

Full Text Available O ácido hipúrico é o principal metabólito do tolueno, solvente amplamente utilizado em processos industriais e com importantes efeitos tóxicos, fato que justifica a preocupação em monitorar regularmente sujeitos com risco de exposição ocupacional a este solvente. O objetivo deste trabalho foi avaliar os níveis de ácido hipúrico encontrados em trabalhadores submetidos à monitorização biológica. Foi realizado um estudo retrospectivo com dados dos anos de 2002 a 2005, no qual foram analisados os resultados e a situação do empregado na oportunidade do exame (periódico, demissional e admissional. Os resultados indicam uma redução significativa nos níveis de ácido hipúrico em 2005. Exames periódicos obtiveram resultados superiores aos exames admissionais e demissionais, e não foi verificada diferença significativa nas proporções dos sujeitos agrupados de acordo com a situação funcional em cada um dos intervalos estabelecidos segundo o valor de referência e o índice biológico máximo permitido. Os níveis de ácido hipúrico detectados indicam um baixo de risco de exposição ao tolueno na população avaliada, provavelmente em decorrência da preocupação crescente com a implantação de medidas de higiene ocupacional.Hippuric acid is the primary metabolite of toluene, a solvent widely used in industrial processes with considerable toxic effects, a fact which justifies regularly monitoring individuals with occupational exposure to this solvent. This work aims at evaluating urinary hippuric acid levels found in workers subject to biological monitoring. A retrospective study was carried out with data referring from 2002 to 2005, in which exams results and employment status were analyzed (periodic, post-employment, and pre-employment exams. Results indicate a significant reduction in hippuric acid levels for 2005. Periodic exams presented higher results than pre-employment and post-employment exams. No significant

Assessment of exit block following pulmonary vein isolation: far-field capture masquerading as entrance without exit block.

Science.gov (United States)

Vijayaraman, Pugazhendhi; Dandamudi, Gopi; Naperkowski, Angela; Oren, Jess; Storm, Randle; Ellenbogen, Kenneth A

2012-10-01

Complete electrical isolation of pulmonary veins (PVs) remains the cornerstone of ablation therapy for atrial fibrillation. Entrance block without exit block has been reported to occur in 40% of the patients. Far-field capture (FFC) can occur during pacing from the superior PVs to assess exit block, and this may appear as persistent conduction from PV to left atrium (LA). To facilitate accurate assessment of exit block. Twenty consecutive patients with symptomatic atrial fibrillation referred for ablation were included in the study. Once PV isolation (entrance block) was confirmed, pacing from all the bipoles on the Lasso catheter was used to assess exit block by using a pacing stimulus of 10 mA at 2 ms. Evidence for PV capture without conduction to LA was necessary to prove exit block. If conduction to LA was noticed, pacing output was decreased until there was PV capture without conduction to LA or no PV capture was noted to assess for far-field capture in both the upper PVs. All 20 patients underwent successful isolation (entrance block) of all 76 (4 left common PV) veins: mean age 58 ± 9 years; paroxysmal atrial fibrillation 40%; hypertension 70%, diabetes mellitus 30%, coronary artery disease 15%; left ventricular ejection fraction 55% ± 10%; LA size 42 ± 11 mm. Despite entrance block, exit block was absent in only 16% of the PVs, suggesting persistent PV to LA conduction. FFC of LA appendage was noted in 38% of the left superior PVs. FFC of the superior vena cava was noted in 30% of the right superior PVs. The mean pacing threshold for FFC was 7 ± 4 mA. Decreasing pacing output until only PV capture (loss of FFC) is noted was essential to confirm true exit block. FFC of LA appendage or superior vena cava can masquerade as persistent PV to LA conduction. A careful assessment for PV capture at decreasing pacing output is essential to exclude FFC. Copyright © 2012 Heart Rhythm Society. Published by Elsevier Inc. All rights reserved.

Tritium in Exit Signs | RadTown USA | US EPA

Science.gov (United States)

2017-08-07

Many exit signs contain tritium to light the sign without batteries or electricity. Using tritium in exit signs allows the sign to remain lit if the power goes out. Tritium is most dangerous when it is inhaled or swallowed. Never tamper with a tritium exit sign. If a tritium exit sign is broken, leave the area immediately and notify the building maintenance staff.

Physics exam preparation: A comparison of three methods

Directory of Open Access Journals (Sweden)

Witat Fakcharoenphol

2014-03-01

Full Text Available In this clinical study on helping students prepare for an exam, we compared three different treatments. All students were asked to take a practice exam. One group was then given worked-out solutions for that exam, another group was given the solutions and targeted exercises to do as homework based on the result of their practice exam, and the third group was given the solutions, homework, and also an hour of one-on-one tutoring. Participants from all three conditions significantly outperformed the control group on the midterm exam. However, participants that had one-on-one tutoring did not outperform the other two participant groups.

Entry and Exit Dynamics of Nascent Business Owners

DEFF Research Database (Denmark)

Rocha, Vera; Carneiro, Anabela; Varum, Celeste

2015-01-01

results suggest that different exit modes can be predicted by business owners’ entry route. Furthermore, different exit modes exhibit different duration dependence patterns according to the entry mode. Additionally, the paper shows that businesses started after a displacement episode are not necessarily......This paper reports a comprehensive study on the dynamics of nascent business owners using a unique longitudinal matched employer–employee dataset. We follow over 157,000 individuals who leave paid employment and become business owners during the period 1992–2007. The contributions of this paper...... are twofold. First, we analyze both entry and exit, identifying and characterizing different profiles of individuals leaving paid employment to become business owners, and distinguishing exits by dissolution from exits by ownership transfer. Second, we provide new evidence on how particular experiences...

X-Ray Exam: Neck (For Parents)

Science.gov (United States)

... Staying Safe Videos for Educators Search English Español X-Ray Exam: Neck KidsHealth / For Parents / X-Ray Exam: ... Neck Enlarged Adenoids Croup Sinusitis Getting an X-ray (Video) X-Ray (Video) View more Partner Message About Us ...

Exploring the Reasons and Ways to Exit: The Entrepreneur Perspective

NARCIS (Netherlands)

Parastuty, Zulaicha; Breitenecker, Robert J.; Schwarz, Erich J.; Harms, Rainer; Bögenhold, Dieter; Bonnet, Jean; Dejardin, Marcus; Garcia Perez de Lema, Domingo

2016-01-01

Research on entrepreneurial exit has received growing attention recently, attributing to the importance of exit in the entrepreneurial process. Yet, the complex phenomena of exit render the research scattered in the field. This research is aimed at understanding entrepreneurial exit at the

The Political Economy of Early Exit

DEFF Research Database (Denmark)

Schmitt, Carina; Starke, Peter

2016-01-01

Large-scale exit from the labour market began in the 1970s in many OECD countries. The literature indicates that individual early retirement decisions are facilitated by generous and accessible ‘pathways’ into retirement in the public pension system, unemployment insurance or disability benefits....... in the tradable sector, against a more traditional class-based logic of welfare state policy-making. Quantitative analysis of employment outcomes in 21 countries shows that the political economy of early exit clearly rests on the sectoral politics of cost-shifting.......Large-scale exit from the labour market began in the 1970s in many OECD countries. The literature indicates that individual early retirement decisions are facilitated by generous and accessible ‘pathways’ into retirement in the public pension system, unemployment insurance or disability benefits....... It is unclear, however, why early exit became so much more prevalent in some countries than in others and why such differences remain, despite a recent shift back towards higher employment rates and ‘active ageing’. We test a logic of sectoral cost-shifting politics involving cross-class alliances...

Being Indigenous in the Bureaucracy: Narratives of Work and Exit

Directory of Open Access Journals (Sweden)

Julie Lahn

2018-01-01

Full Text Available Australia’s civil service has had some success in attracting substantial numbers of Indigenous employees. But significant numbers also regularly exit the bureaucracy. Retaining Indigenous employees is recognised as an ongoing difficulty for government. This research with former and current Indigenous civil servants outlines factors they identify as contributing to decisions to leave the bureaucracy. A key finding involves their general sense of being underutilised and undervalued— that forms of experience and understanding as Indigenous people go largely unrecognised within government, which in turn constrains their potential to meaningfully contribute to improving government relations with Indigenous Australians or to enhancing the effectiveness of the bureaucracy more broadly. Work as an Indigenous civil servant emerges as a space of contestation with the possibilities and limits of statecraft.

Physics exam preparation: A comparison of three methods

OpenAIRE

Witat Fakcharoenphol; Timothy Stelzer

2014-01-01

In this clinical study on helping students prepare for an exam, we compared three different treatments. All students were asked to take a practice exam. One group was then given worked-out solutions for that exam, another group was given the solutions and targeted exercises to do as homework based on the result of their practice exam, and the third group was given the solutions, homework, and also an hour of one-on-one tutoring. Participants from all three conditions significantly outperforme...

Oral Exams as a Tool for Teaching and Assessment

Science.gov (United States)

Sayre, Eleanor C.

2014-01-01

Oral exams are a fruitful and practical alternative to written exams in small-enrolment Science classes. In an oral exam, the instructor can assess conceptual understanding, problem-solving, scientific communication skills, and a student's philosophy of science. In contrast, a written exam gives a much poorer picture of how students learn and…

Sleep and Final Exam Performance in Introductory Physics

Science.gov (United States)

Coletta, Vincent; Wikholm, Colin; Pascoe, Daniel

2018-03-01

Most physics instructors believe that adequate sleep is important in order for students to perform well on problem solving, and many instructors advise students to get plenty of sleep the night before an exam. After years of giving such advice to students at Loyola Marymount University (LMU), one of us decided to find out how many hours students actually do sleep the night before an exam, and how that would relate to their performance. The effect of inadequate sleep on exam performance was explored in a second-semester introductory physics course. At the end of the final exam, students reported the number of hours they slept the night before. Sleep deprivation corresponded to lower final exam scores. The main purpose of this study is to provide evidence that instructors can provide to their students to convince them that their time is better spent sleeping rather than studying all night before an exam.

29 CFR 1910.36 - Design and construction requirements for exit routes.

Science.gov (United States)

2010-07-01

... construction requirements for exit routes. (a) Basic requirements. Exit routes must meet the following design... your workplace, consult NFPA 101-2000, Life Safety Code. (c) Exit discharge. (1) Each exit discharge... route must be adequate. (1) Exit routes must support the maximum permitted occupant load for each floor...

CompTIA network+ study guide exam N10-006

CERN Document Server

Lammle, Todd

2015-01-01

All-star N10-006 prep, fully updated for the new exam The CompTIA Network+ Study Guide is your one-stop comprehensive resource in preparing for exam N10-006 Bestselling author and networking Guru Todd Lammle guides you through 100% of all exam objectives detailing the fundamental concepts you will need to know to prepare for the exam. Coverage includes network technologies, installation and configuration, media and topologies, security, and much more, plus practical examples drawn from real-world situations. You also gain access to practice exams and electronic flashcards that facilitate info

Cognitive Difficulty and Format of Exams Predicts Gender and Socioeconomic Gaps in Exam Performance of Students in Introductory Biology Courses.

Science.gov (United States)

Wright, Christian D; Eddy, Sarah L; Wenderoth, Mary Pat; Abshire, Elizabeth; Blankenbiller, Margaret; Brownell, Sara E

2016-01-01

Recent reform efforts in undergraduate biology have recommended transforming course exams to test at more cognitively challenging levels, which may mean including more cognitively challenging and more constructed-response questions on assessments. However, changing the characteristics of exams could result in bias against historically underserved groups. In this study, we examined whether and to what extent the characteristics of instructor-generated tests impact the exam performance of male and female and middle/high- and low-socioeconomic status (SES) students enrolled in introductory biology courses. We collected exam scores for 4810 students from 87 unique exams taken across 3 yr of the introductory biology series at a large research university. We determined the median Bloom's level and the percentage of constructed-response questions for each exam. Despite controlling for prior academic ability in our models, we found that males and middle/high-SES students were disproportionately favored as the Bloom's level of exams increased. Additionally, middle/high-SES students were favored as the proportion of constructed-response questions on exams increased. Given that we controlled for prior academic ability, our findings do not likely reflect differences in academic ability level. We discuss possible explanations for our findings and how they might impact how we assess our students. © 2016 C. D. Wright, S. L. Eddy, et al. CBE—Life Sciences Education © 2016 The American Society for Cell Biology. This article is distributed by The American Society for Cell Biology under license from the author(s). It is available to the public under an Attribution–Noncommercial–Share Alike 3.0 Unported Creative Commons License (http://creativecommons.org/licenses/by-nc-sa/3.0).

Spatial signals link exit from mitosis to spindle position.

Science.gov (United States)

Falk, Jill Elaine; Tsuchiya, Dai; Verdaasdonk, Jolien; Lacefield, Soni; Bloom, Kerry; Amon, Angelika

2016-05-11

In budding yeast, if the spindle becomes mispositioned, cells prevent exit from mitosis by inhibiting the mitotic exit network (MEN). The MEN is a signaling cascade that localizes to spindle pole bodies (SPBs) and activates the phosphatase Cdc14. There are two competing models that explain MEN regulation by spindle position. In the 'zone model', exit from mitosis occurs when a MEN-bearing SPB enters the bud. The 'cMT-bud neck model' posits that cytoplasmic microtubule (cMT)-bud neck interactions prevent MEN activity. Here we find that 1) eliminating cMT- bud neck interactions does not trigger exit from mitosis and 2) loss of these interactions does not precede Cdc14 activation. Furthermore, using binucleate cells, we show that exit from mitosis occurs when one SPB enters the bud despite the presence of a mispositioned spindle. We conclude that exit from mitosis is triggered by a correctly positioned spindle rather than inhibited by improper spindle position.

Synchronisation phenomenon in three blades rotor driven by regular or chaotic oscillations

Directory of Open Access Journals (Sweden)

Szmit Zofia

2018-01-01

Full Text Available The goal of the paper is to analysed the influence of the different types of excitation on the synchronisation phenomenon in case of the rotating system composed of a rigid hub and three flexible composite beams. In the model is assumed that two blades, due to structural differences, are de-tuned. Numerical calculation are divided on two parts, firstly the rotating system is exited by a torque given by regular harmonic function, than in the second part the torque is produced by chaotic Duffing oscillator. The synchronisation phenomenon between the beams is analysed both either for regular or chaotic motions. Partial differential equations of motion are solved numerically and resonance curves, time series and Poincaré maps are presented for selected excitation torques.

Diagnostic Accuracy of Secondary Ultrasound Exam in Blunt Abdominal Trauma

International Nuclear Information System (INIS)

Rajabzadeh Kanafi, Alireza; Giti, Masoumeh; Gharavi, Mohammad Hossein; Alizadeh, Ahmad; Pourghorban, Ramin; Shekarchi, Babak

2014-01-01

In stable patients with blunt abdominal trauma, accurate diagnosis of visceral injuries is crucial. To determine whether repeating ultrasound exam will increase the sensitivity of focused abdominal sonography for trauma (FAST) through revealing additional free intraperitoneal fluid in patients with blunt abdominal trauma. We performed a prospective observational study by performing primary and secondary ultrasound exams in blunt abdominal trauma patients. All ultrasound exams were performed by four radiology residents who had the experience of more than 400 FAST exams. Five routine intraperitoneal spaces as well as the interloop space were examined by ultrasound in order to find free fluid. All patients who expired or were transferred to the operating room before the second exam were excluded from the study. All positive ultrasound results were compared with intra-operative and computed tomography (CT) findings and/or the clinical status of the patients. Primary ultrasound was performed in 372 patients; 61 of them did not undergo secondary ultrasound exam; thus, were excluded from the study.Three hundred eleven patients underwent both primary and secondary ultrasound exams. One hundred and two of all patients were evaluated by contrast enhanced CT scan and 31 underwent laparotomy. The sensitivity of ultrasound exam in detecting intraperitoneal fluid significantly increased from 70.7% for the primary exam to 92.7% for the secondary exam. Examining the interloop space significantly improved the sensitivity of ultrasonography in both primary (from 36.6% to 70.7%) and secondary (from 65.9% to 92.7%) exams. Performing a secondary ultrasound exam in stable blunt abdominal trauma patients and adding interloop space scan to the routine FAST exam significantly increases the sensitivity of ultrasound in detecting intraperitoneal free fluid

CompTIA Network+ Review Guide Exam N10-005

CERN Document Server

Ferguson, Bill

2012-01-01

Fast, focused review for the latest CompTIA Network+ Exam N10-005 CompTIA's Network+ certification is the leading non-vendor networking certification in the world and has become the standard certification for networking professionals. Make sure you're ready for CompTIA's new Network+ certification (exam N10-005) with this new edition of Sybex's CompTIA Network+ Review Guide. This concise guide is efficiently organized by exam objectives and covers all five exam domains. The book also includes 50 chapter review questions, as well as access to two online practice exams, and much more. It's the p

CompTIA Network+ Review Guide (Exam N10-004)

CERN Document Server

Ferguson, Bill

2009-01-01

Serving as a concise, focused study aid to help you prepare for the leading non-vendor-specific networking certification exam, this book features more review questions and study review features than any other guide, with over 120 review questions, two bonus exams, and electronic Flashcard, as well as a searchable Glossary of Terms database on CD-ROM. Fully updated for the first revision of the CompTIA Network+ exam since 2005, the book is organized by exam objectives and broken into six parts corresponding to the six domain areas of the Network+ exam: technologies, media and topologies, device

Enhanced Security for Online Exams Using Group Cryptography

Science.gov (United States)

Jung, I. Y.; Yeom, H. Y.

2009-01-01

While development of the Internet has contributed to the spread of online education, online exams have not been widely adopted. An online exam is defined here as one that takes place over the insecure Internet, and where no proctor is in the same location as the examinees. This paper proposes an enhanced secure online exam management environment…

Class size, type of exam and student achievement

DEFF Research Database (Denmark)

Madsen, Erik

Education as a road to growth has been on the political agenda in recent years and promoted not least by the institutions of higher education. At the same time the universities have been squeezed for resources for a long period and the average class size has increased as a result. However......, the production technology for higher education is not well known and this study highlights the relation between class size and student achievement using a large dataset of 80.000 gradings from the Aarhus School of Business. The estimations show a large negative effect of larger classes on the grade level...... of students. The type of exam also has a large and significant effect on student achievements and oral exam, take-home exam and group exam reward the student with a significantly higher grade compared with an on-site written exam....

Class Size, Type of Exam and Student Achievement

DEFF Research Database (Denmark)

Madsen, Erik Strøjer

2011-01-01

Education as a road to growth has been on the political agenda in recent years and promoted not least by the institutions of higher education. At the same time the universities have been squeezed for resources for a long period and the average class size has increased as a result. However......, the production technology for higher education is not well known and this study highlights the relation between class size and student achievement using a large dataset of 80.000 gradings from the Aarhus School of Business. The estimations show a large negative effect of larger classes on the grade level...... of students. The type of exam also has a large and significant effect on student achievements and oral exam, take-home exam and group exam reward the student with a significantly higher grade compared with an on-site written exam....

Dissuasive exit signage for building fire evacuation.

Science.gov (United States)

Olander, Joakim; Ronchi, Enrico; Lovreglio, Ruggiero; Nilsson, Daniel

2017-03-01

This work presents the result of a questionnaire study which investigates the design of dissuasive emergency signage, i.e. signage conveying a message of not utilizing a specific exit door. The work analyses and tests a set of key features of dissuasive emergency signage using the Theory of Affordances. The variables having the largest impact on observer preference, interpretation and noticeability of the signage have been identified. Results show that features which clearly negate the exit-message of the original positive exit signage are most effective, for instance a red X-marking placed across the entirety of the exit signage conveys a clear dissuasive message. Other features of note are red flashing lights and alternation of colour. The sense of urgency conveyed by the sign is largely affected by sensory inputs such as red flashing lights or other features which cause the signs to break the tendencies of normalcy. Copyright © 2016 Elsevier Ltd. All rights reserved.

Follow-groups, Enhancing Learning Potential at Project Exams

DEFF Research Database (Denmark)

Tollestrup, Christian H. T.

2016-01-01

In the Problem Based, Project Oriented Learning Program of Industrial Design Engineering at AAU students work and are examined/evaluated in groups. Following a period of a 6 years of ban on group-based exams by the government, the return of the group-based exam at Universities in 2014 has...... and the supervisor. Having the group based exam re-introduced sparked the interest for even further utilizing the exam situation for enhancing the learning outcome for each project and at the same time promote a more open atmosphere. Can the students learn even more and/or put their own project learning...... into perspective by seeing other project exams? So in order to investigate whether there was a possibility to further enhance the learning potential and understanding of the learning outcome the study board for the Architecture & Design program opened for a trial period for 2 semesters for voluntarily organizing...

Comptia Network+ review guide exam N10-006

CERN Document Server

Ferguson, Bill

2015-01-01

Be prepared for the Network+ exam CompTIA Network+ Review Guide is your ideal study companion for preparing for the CompTIA Network+ exam (N10-006). This concise review is the perfect companion to the CompTIA Network+ Study Guide and the CompTIA Network+ Deluxe Study Guide, with full exam coverage organized by objective for quick review and reinforcement of key topics. Each of the book's five parts is devoted to a specific domain area of the exam, providing a focused review to bolster areas of weak understanding. You get access to the Sybex test engine, which includes two bonus practice tests

Evaluating multiple-choice exams in large introductory physics courses

OpenAIRE

Gary Gladding; Tim Stelzer; Michael Scott

2006-01-01

The reliability and validity of professionally written multiple-choice exams have been extensively studied for exams such as the SAT, graduate record examination, and the force concept inventory. Much of the success of these multiple-choice exams is attributed to the careful construction of each question, as well as each response. In this study, the reliability and validity of scores from multiple-choice exams written for and administered in the large introductory physics courses at the Unive...

CCNA Security Study Guide, Exam 640-553

CERN Document Server

Boyles, Tim

2010-01-01

A complete study guide for the new CCNA Security certification exam. In keeping with its status as the leading publisher of CCNA study guides, Sybex introduces the complete guide to the new CCNA security exam. The CCNA Security certification is the first step towards Cisco's new Cisco Certified Security Professional (CCSP) and Cisco Certified Internetworking Engineer-Security. With a foreword by CCNA networking authority Todd Lammle, CCNA Security Study Guide fully covers every exam objective. The companion CD includes the Sybex Test Engine, flashcards, and a PDF of the book.: The CCNA Securit

Exit interviews to reduce turnover amongst healthcare professionals.

Science.gov (United States)

Webster, Joan; Flint, Anndrea

2014-08-19

Exit interviews are widely used in healthcare organisations to identify reasons for staff attrition, yet their usefulness in limiting turnover is unclear. To determine the effectiveness of various exit interview strategies in decreasing turnover rates amongst healthcare professionals. We searched the Cochrane EPOC Group Specialised Register; Cochrane Central Register of Controlled Trials (CENTRAL), Issue 11, 2012; MEDLINE, Ovid (1950- ); EMBASE, Ovid (1947- ); CINAHL, EbscoHost (1980- ), and PsycINFO, OVID (1806-) between October 31 and November 6, 2012. We also screened the reference lists of included studies and relevant reviews; and searched trial registries for planned and on-going studies. We did not restrict searches by language or publication date. Randomised controlled trials, controlled clinical trials, controlled before-after studies and interrupted time series studies comparing turnover rates between healthcare professionals who had undergone one form of exit interview with another form of exit interview or with no interview. Two review authors independently assessed trial quality and extracted data. The original search identified 1560 citations, of which we considered 19 potentially relevant. The two authors independently reviewed the abstracts of these studies and retrieved the full texts of eight studies. We excluded all eight following independent assessment; they were either interviews, commentaries on how to do an exit interview or descriptive studies about reasons for leaving. We found no studies that matched our inclusion criteria. For this first update, we screened 2220 citations and identified no new studies. Evidence about the effectiveness of exit interviews to reduce turnover is currently not available. However, exit interviews may provide useful information about the work environment which, in turn, may be useful in the development of interventions to reduce turnover.

FLEX: A Modular Software Architecture for Flight License Exam

Science.gov (United States)

Arsan, Taner; Saka, Hamit Emre; Sahin, Ceyhun

This paper is about the design and implementation of an examination system based on World Wide Web. It is called FLEX-Flight License Exam Software. We designed and implemented flexible and modular software architecture. The implemented system has basic specifications such as appending questions in system, building exams with these appended questions and making students to take these exams. There are three different types of users with different authorizations. These are system administrator, operators and students. System administrator operates and maintains the system, and also audits the system integrity. The system administrator can not be able to change the result of exams and can not take an exam. Operator module includes instructors. Operators have some privileges such as preparing exams, entering questions, changing the existing questions and etc. Students can log on the system and can be accessed to exams by a certain URL. The other characteristic of our system is that operators and system administrator are not able to delete questions due to the security problems. Exam questions can be inserted on their topics and lectures in the database. Thus; operators and system administrator can easily choose questions. When all these are taken into consideration, FLEX software provides opportunities to many students to take exams at the same time in safe, reliable and user friendly conditions. It is also reliable examination system for the authorized aviation administration companies. Web development platform - LAMP; Linux, Apache web server, MySQL, Object-oriented scripting Language - PHP are used for developing the system and page structures are developed by Content Management System - CMS.

From Exam to Education: The Math Exam/Education Resources

Science.gov (United States)

Bruni, Carmen; Koch, Christina; Konrad, Bernhard; Lindstrom, Michael; Moyles, Iain; Thompson, Will

2016-01-01

The Math Exam/Education Resources (MER) is an open online learning resource hosted at The University of British Columbia (UBC), aimed at providing mathematics education resources for students and instructors at UBC. In this paper, there will be a discussion of the motivation for creating this resource on the MediaWiki platform, key features of the…

Exit examinations, peer academic climate, and adolescents' developmental outcomes.

Science.gov (United States)

Benner, Aprile D

2013-02-01

Implications of high school exit examination performance were examined with a sample of 672 racial/ethnic minority students. Exit examination failure in the 10th grade was negatively linked to subsequent grade point average, school engagement, and school belonging one year later, controlling for outcomes prior to taking the examination. Academically incongruent students-those who failed the exit examination but were in schools where their same-race/ethnicity peers were performing well academically-seemed to be at particular risk for struggling grades and poorer socioemotional well-being (e.g., experiencing greater depressive symptoms and loneliness). Findings contribute to the limited research base on exit examinations and highlight the links between exit examination performance and developmental outcomes beyond the oft-studied academic domain. Copyright © 2012 Society for the Study of School Psychology. Published by Elsevier Ltd. All rights reserved.

Final Exam Weighting as Part of Course Design

Directory of Open Access Journals (Sweden)

Matthew Franke

2018-03-01

Full Text Available The weighting of a final exam or a final assignment is an essential part of course design that is rarely discussed in pedagogical literature. Depending on the weighting, a final exam or assignment may provide unequal benefits to students depending on their prior performance in the class. Consequently, uncritical grade weighting can discount student learning, by ensuring that improved mastery of material at the semester’s end is not reflected in the course grade. Problems related to several common final exam weights are explored, as are potential solutions to unequal student outcomes made possible by uncritical grade weighting. Ultimately, this essay argues that choosing a weight for a final exam or a final assignment determines what types of student success ought to be possible in the class; therefore, instructors should assign exam weights intentionally, being fully aware of the potential benefits and problems of the weights that they choose.

Is the publication of exit poll results morally permissible?

DEFF Research Database (Denmark)

Sønderholm, Jørn

2016-01-01

This article is about exit polls. It addresses the question of whether or not it is morally permissible to publish exit poll results. The conclusion of the article is that an affirmative answer should be given to this question. In section 2, the master argument in favor of the moral permissibility...... of the publication of exit poll results is introduced. This is a strong argument. It is, however, argued that it might be the case that the conclusion of this argument should be rejected if there are other, and weightier, arguments against the idea that the publication of exit poll results is morally permissible....... In section 3, the strongest arguments against the moral permissibility of the publication of exit poll results are outlined and discussed. The conclusion of this section is that all these arguments fail in their intended purpose. The conclusion of the article is therefore justified....

IPO as an Exit startegy in Management Buyouts

OpenAIRE

Sheth, Vidhi Chetan

2008-01-01

The basic subject to this research project is,IPO as an exit strategy in management buyouts. The paper provides with an understanding of the various characteristics and factors that have an impact on a buyout exit through an IPO. Discussions on the issues like the IPO versus other exit strategies, performance of a company's pre-IPO as well as post-IPO, the trends in the buyout and the IPO market, etc are done. For a better understanding and an in-depth knowledge about the topic, we have analy...

Investigating the effects of exam length on performance and cognitive fatigue.

Directory of Open Access Journals (Sweden)

Jamie L Jensen

Full Text Available This study examined the effects of exam length on student performance and cognitive fatigue in an undergraduate biology classroom. Exams tested higher order thinking skills. To test our hypothesis, we administered standard- and extended-length high-level exams to two populations of non-majors biology students. We gathered exam performance data between conditions as well as performance on the first and second half of exams within conditions. We showed that lengthier exams led to better performance on assessment items shared between conditions, possibly lending support to the spreading activation theory. It also led to greater performance on the final exam, lending support to the testing effect in creative problem solving. Lengthier exams did not result in lower performance due to fatiguing conditions, although students perceived subjective fatigue. Implications of these findings are discussed with respect to assessment practices.

OCA/OCP Oracle database 11g all-in-one exam guide exams 1Z0-051, 1Z0-052, 1Z0-053

CERN Document Server

Watson, John

2010-01-01

A Fully Integrated Study System for OCA Exams 1Z0-051 and 1Z0-052, and OCP Exam 1Z0-053 Prepare for the Oracle Certified Associate Administration I and SQL Fundamentals I exams and the Oracle Certified Professional Administration II exam with help from this exclusive Oracle Press guide. In each chapter, you'll find challenging exercises, practice questions, and a two-minute drill to highlight what you've learned. This authoritative guide will help you pass the test and serve as your essential on-the-job reference. Get complete coverage of all objectives for exams 1Z0-051, 1Z0-052, and 1Z0-053, including: Instance management Networking and storage Security SQL Oracle Recovery Manager and Oracle Flashback Oracle Automatic Storage Management Resource manager Oracle Scheduler Automatic workload repository Performance tuning And more On the CD-ROM: Three full practice exams Detailed answers and explanations Score report performance assessment tool Complete electronic book Three bonus exams available with free onli...

Exit by Afghanisation

DEFF Research Database (Denmark)

Holmberg, Hasse

USA’s exit-strategi fra Afghanistan har båret præg af et italesat hovedmål om overdragelse af ansvar til de nationale myndigheder i landet. Exit-strategien udmærker sig ved sin lighed med USA’s afvikling af sit engagement i Vietnam for snart et halvt århundrede siden, hvor begrebet Vietnamisation...... om national selvbestemmelse. Den amerikanske opinion spillede en afgørende rolle og afslutningen af engagementet i Vietnam kan i lige så høj grad ses som en reaktion på den massive folkelige modstand mod krigen. Omtrent 40 år efter kan Obama-administrationen notere sig en lignende negativ trend i...... Kissinger vidste, at krigen i Vietnam var tabt. Vietnamisation havde i høj grad til formål at slutte USA’s engagement på en måde, der tog hensyn til USA’s internationale renomme. Spørgsmålet er så om de mange strategiske ligheder kan overføres til samme konklusion: krigen er tabt. Briefet har til hensigt...

MCTS (Exams 70-640, 70-642 and 70-643)

CERN Document Server

Panek, William

2011-01-01

The must-have study guide for all three Windows Server 2008 R2 MCTS examsNetwork administrators boost their value to their employers with certification, and Microsoft?s three Windows Server 2008 exams offer certification specialties in configuring Active Directory, Network Infrastructure, and Applications Infrastructure. With complete coverage to prepare you for all three exams, this comprehensive study guide has three times the value. Real-world scenarios and hands-on exercises supplement the information to facilitate learning.The three Windows Server 2008 R2 exams (70-640, 70-642, and 70-643

Eleventh Hour Network+ Exam N10-004 Study Guide

CERN Document Server

Alpern, Naomi

2009-01-01

The 11th Hour Network+ Study Guide is keyed to the N10-004 revision of the CompTIA Network+ exam. This book is streamlined to include only core certification information and is presented for ease of last-minute studying. Main objectives of the exam are covered with key concepts highlighted. ..: ..; Fast Facts quickly review fundamentals ..; Exam Warnings highlight particularly tough sections of the exam ..; Crunch Time sidebars point out key concepts to remember ..; Did You Know? sidebars cover sometimes forgotten details ..; Top Five Toughest Questions and answers help you to prepare ..

Auto-exame das mamas entre estudantes de medicina Breast self-examination among medical students

Directory of Open Access Journals (Sweden)

Ruffo de Freitas Júnior

1999-06-01

Full Text Available Objetivo: avaliar o nível de conhecimento e prática do auto-exame da mama entre os estudantes do curso médico e determinar possíveis fatores associados a esta prática. Métodos: foi utilizado um questionário que continha informações sobre os alunos e o seu conhecimento a respeito do auto-exame, permitindo ainda, verificar entre as alunas a prática do mesmo. Utilizaram-se os testes do qui quadrado e "t" de Student, quando aplicáveis, para verificar a associação de alguns fatores com o auto-exame. Resultados: dos 348 questionários respondidos, 55 (16% pertenciam aos alunos do 5º ano (estudantes que haviam cursado a Disciplina de Ginecologia da Universidade Federal de Goiás, 43% eram mulheres, 62% tinham familiares médicos e 17% apresentavam história familiar de câncer de mama. Em relação ao conhecimento do auto-exame, 95% conheciam o método. Das 149 estudantes, apenas 64% o praticavam. Os motivos para não fazê-lo eram: por ser muito jovem (24%, por não acreditar que pudesse acontecer com ela (4%, por medo (9% e por preguiça (19%, sendo que 44% das alunas não souberam explicar o motivo. Tanto o conhecimento quanto a prática do auto-exame não estiveram associados ao ano do curso médico, história familiar de câncer de mama ou à presença de familiar médico. Conclusão: o auto-exame é conhecido por praticamente todos os estudantes de medicina mesmo assim, um terço das estudantes não o praticam. Com isso ressalta-se a importância do auto-exame no curso médico, a fim de que os alunos possam levar mais informações à população, não limitando esta tarefa aos meios de comunicação.Purpose: to evaluate the knowledge and practice of breast self-examination among medical students and to determine possible factors associated with this practice. Method: the authors used a questionnaire to gather information about the students and their knowledge of this self-examination. This questionnaire also allowed the authors to

Evaluating multiple-choice exams in large introductory physics courses

Directory of Open Access Journals (Sweden)

Gary Gladding

2006-07-01

Full Text Available The reliability and validity of professionally written multiple-choice exams have been extensively studied for exams such as the SAT, graduate record examination, and the force concept inventory. Much of the success of these multiple-choice exams is attributed to the careful construction of each question, as well as each response. In this study, the reliability and validity of scores from multiple-choice exams written for and administered in the large introductory physics courses at the University of Illinois, Urbana-Champaign were investigated. The reliability of exam scores over the course of a semester results in approximately a 3% uncertainty in students’ total semester exam score. This semester test score uncertainty yields an uncertainty in the students’ assigned letter grade that is less than 1 / 3 of a letter grade. To study the validity of exam scores, a subset of students were ranked independently based on their multiple-choice score, graded explanations, and student interviews. The ranking of these students based on their multiple-choice score was found to be consistent with the ranking assigned by physics instructors based on the students’ written explanations ( r>0.94 at the 95% confidence level and oral interviews (r=0.94−0.09+0.06 .

Entry and exit decisions under uncertainty

DEFF Research Database (Denmark)

Kongsted, Hans Christian

1996-01-01

This paper establishes the general deterministic limit that corresponds to Dixit's model of entry and exit decisions under uncertainty. The interlinked nature of decisions is shown to be essential also in the deterministic limit. A numerical example illustrates the result......This paper establishes the general deterministic limit that corresponds to Dixit's model of entry and exit decisions under uncertainty. The interlinked nature of decisions is shown to be essential also in the deterministic limit. A numerical example illustrates the result...

Adaptive selection of heuristics for improving exam timetables

OpenAIRE

Burke, Edmund; Qu, Rong; Soghier, Amr

2014-01-01

This paper presents a hyper-heuristic approach which hybridises low-level heuristic moves to improve timetables. Exams which cause a soft-constraint violation in the timetable are ordered and rescheduled to produce a better timetable. It is observed that both the order in which exams are rescheduled and the heuristic moves used to reschedule the exams and improve the timetable affect the quality of the solution produced. After testing different combinations in a hybrid hyper-heuristic approac...

Evaluating Multiple-Choice Exams in Large Introductory Physics Courses

Science.gov (United States)

Scott, Michael; Stelzer, Tim; Gladding, Gary

2006-01-01

The reliability and validity of professionally written multiple-choice exams have been extensively studied for exams such as the SAT, graduate record examination, and the force concept inventory. Much of the success of these multiple-choice exams is attributed to the careful construction of each question, as well as each response. In this study,…

Jet Exit Rig Six Component Force Balance

Science.gov (United States)

Castner, Raymond; Wolter, John; Woike, Mark; Booth, Dennis

2012-01-01

A new six axis air balance was delivered to the NASA Glenn Research Center. This air balance has an axial force capability of 800 pounds, primary airflow of 10 pounds per second, and a secondary airflow of 3 pounds per second. Its primary use was for the NASA Glenn Jet Exit Rig, a wind tunnel model used to test both low-speed, and high-speed nozzle concepts in a wind tunnel. This report outlines the installation of the balance in the Jet Exit Rig, and the results from an ASME calibration nozzle with an exit area of 8 square-inches. The results demonstrated the stability of the force balance for axial measurements and the repeatability of measurements better than 0.20 percent.

Criticality safety analysis of a calciner exit chute

International Nuclear Information System (INIS)

Haught, C.F.; Basoglu, B.; Brewer, R.W.; Hollenback, D.F.; Wilkinson, A.D.; Dodds, H.L.

1994-01-01

Calcination of uranyl nitrate into uranium oxide is part of normal operations of some enrichment plants. Typically, a calciner discharges uranium oxide powder (U 3 O 8 ) into an exit chute that directs the powder into a receiving can located in a glove box. One possible scenario for a criticality accident is the exit chute becoming blocked with powder near its discharge. The blockage restricts the flow of powder causing the exit chute to become filled with the powder. If blockage does occur, the height of the powder could reach a level that would not be safe from a criticality point of view. In this analysis, the subcritical height limit is examined for 98% enriched U 3 O 8 in the exit chute with full water reflection and optimal water moderation. The height limit for ensuring criticality safety during such an accumulation is 28.2 cm above the top of the discharge pipe at the bottom of the chute. Chute design variations are also evaluated with full water reflection and optimal water moderation. Subcritical configurations for the exit chute variation are developed, but the configurations are not safe when combined with the calciner. To ensure criticality safety, modifications must be made to the calciner tube or safety measures must be implemented if these designs are to be utilized with 98% enriched material. A geometrically safe configuration for the exit chute is developed for a blockage of 20% enriched powder with full water reflection and optimal water moderation, and this configuration is safe when combined with the existing calciner

Will students pass a competitive exam that they failed in their dreams?

Science.gov (United States)

Arnulf, Isabelle; Grosliere, Laure; Le Corvec, Thibault; Golmard, Jean-Louis; Lascols, Olivier; Duguet, Alexandre

2014-10-01

We tested whether dreams can anticipate a stressful exam and how failure/success in dreams affect next-day performance. We collected information on students' dreams during the night preceding the medical school entrance exam. Demographic, academic, sleep and dream characteristics were compared to the students' grades on the exam. Of the 719 respondents to the questionnaire (of 2324 total students), 60.4% dreamt of the exam during the night preceding it. Problems with the exam appeared in 78% of dreams and primarily involved being late and forgetting answers. Reporting a dream about the exam on the pre-exam night was associated with better performance on the exam (p=.01). The frequency of dreams concerning the exam during the first term predicted proportionally higher performance on the exam (R=0.1, p=.01). These results suggest that the negative anticipation of a stressful event in dreams is common and that this episodic simulation provides a cognitive gain. Copyright © 2014 Elsevier Inc. All rights reserved.

Residency program characteristics that are associated with pass rate of the American Board of Pediatrics certifying exam.

Science.gov (United States)

Atsawarungruangkit, Amporn

2015-01-01

The US is home to almost 200 pediatrics residency programs; despite this, there is little information about the relationship between program characteristics and performance in the American Board of Pediatrics (ABP) certifying exam. To evaluate the relationship between pass rate of the ABP certifying exam with the characteristics of categorical pediatrics residency programs. This retrospective, cross-sectional study used publicly available data from the ABP website and the Fellowship and Residency Electronic Interactive Database. All programs that reported pass rates were included. The analysis, comprising univariate and multivariate linear regression, involved determining how 69 factors (eg, general information, number of faculty and trainees, work schedule, educational environment) related to the pass rate. Of 199 programs, 194 reported pass rates. The univariate analysis revealed 20 program characteristics with P-values program characteristics: ratio of full-time equivalent paid faculty to positions, percentage of US medical graduates, and average hours per week of regularly scheduled lectures or conferences. Unlike in previous studies, location and program size were not significantly associated with the pass rate in this multivariate analysis. The finding regarding the ratio of full-time equivalent paid faculty to positions highlighted the benefits of a well-supervised training environment, while that regarding the percentage of US medical graduates indicated the necessity of high competition in residency programs. Finally, longer hours per week of regularly scheduled lectures or conferences were associated with better academic outcomes, both statistically and intuitively.

CompTIA Network+ Study Guide Exam N10-005

CERN Document Server

Lammle, Todd

2012-01-01

Todd Lammle's latest CompTIA Network+ Study Guide, now updated for the new exam! CompTIA's Network+ certification tells the world you have the skills to install, configure, and troubleshoot today's basic networking hardware peripherals and protocols. But first, you have to pass the exam! This detailed CompTIA Authorized study guide by networking guru Todd Lammle has everything you need to prepare for the CompTIA's new Network+Exam N10-005. All exam objectives are covered. He thoroughly explains key topics, offers plenty of practical examples, and draws upon his own invaluable 25+ years of netw

MCSD certification toolkit (exam 70-483) programming in C#

CERN Document Server

Covaci, Tiberiu; Varallo, Vincent; O'Brien, Gerry

2013-01-01

A perfectly crafted prep guide that prepares you for the MCSD 70-483 The MCSD 70-483 exam is the entry-level Microsoft certification exam for C# developers and this must-have resource offers essential coverage of the exam that will test your competency in C# programming. Each chapter covers one of the core subject domains that comprise the exam. Among the authors are experienced trainers who advised Microsoft on the development of its certification programs, affording them a unique understanding of both the objectives and what it takes to master them. This invaluable knowledge is p

Medical Student Dissection of CadaversImproves Performance on Practical Exams, but not Dissection-Relevant Questions in the NBME Gross Anatomy and Embryology Final Exam

Directory of Open Access Journals (Sweden)

Leslie Sargent Jones

2001-03-01

Full Text Available We have examined whether cadaver dissection by first year medical students (MIs affected their performance in two test measures: the NBME Gross Anatomy and Embryology Subject Exam (dissection-relevant questions only, and practical exams given at the end of each major section within the course. The dissections for the entire course were divided into 18 regional dissection units and each student was assigned to dissect one third of the regional units; the other two-thirds of the material was learned from the partner-prosected cadavers. Performance for each student on the exams was then assessed as a function of the regions those students actually dissected. While the results indicated a small performance advantage for MIs answering questions on material they had dissected on the NBME Subject Exam questions relevant to dissection (78-88% of total exam, the results were not statistically significant. However, a similar, small performance advantage on the course practical exams was highly significant.

24 CFR 3280.106 - Exit facilities; egress windows and devices.

Science.gov (United States)

2010-04-01

... 24 Housing and Urban Development 5 2010-04-01 2010-04-01 false Exit facilities; egress windows and... § 3280.106 Exit facilities; egress windows and devices. (a) Every room designed expressly for sleeping purposes, unless it has an exit door (see § 3280.105), shall have at least one outside window or approved...

An Identity Theory of Role Exit among Soccer Referees

OpenAIRE

Milne, Jason Syme

2006-01-01

This study examines how identity processes affect role exit. I test a model of role exit that situates the identity processes of cognitive processes (reflected appraisals and social comparisons), rewards and costs related to the role, commitment to the role, and identity centrality as mediating factors between role-set and social characteristic background factors, and role exit. Using a sample of 940 current and former soccer referees in Virginia and the District of Columbia, the results s...

Prior-to-Exam: What Activities Enhance Performance?

Science.gov (United States)

Rhoads, C. J.; Healy, Therese

2013-01-01

Can instructors impact their student performance by recommending an activity just prior to taking an exam? In this study, college students were randomly assigned to one of three treatment groups (study, exercise, or meditation) or a control group. Each group was given two different types of tests; a traditional concept exam, and a non-traditional…

Exit channels of autoionization resonances in atoms

International Nuclear Information System (INIS)

Krause, M.O.

1985-01-01

In many-electron atoms with open shells strong autoionization resonances occur when an electron from an inner, weakly bound subshell is excited. Usually, the resonance state lies above several ionization thresholds and, hence, will decay into more than one exit or continuum channel. Several cases are discussed in which the resonance state is induced by synchrotron radiation, and the exit channels are differentiated and characterized by the analysis of the ejected electrons

Effect of Paper Color and Question Order on Exam Performance

Science.gov (United States)

Tal, Ilanit R.; Akers, Katherine G.; Hodge, Gordon K.

2008-01-01

To deter cheating, teachers commonly use exams printed on differently colored paper or with varied question orders. Previous studies, however, reported that paper color and question order affect exam performance and suggested that teachers should adjust students' scores accordingly and discontinue the use of alternate exam forms. We conducted 2…

Does Question Structure Affect Exam Performance in the Geosciences?

Science.gov (United States)

Day, E. A.; D'Arcy, M. K.; Craig, L.; Streule, M. J.; Passmore, E.; Irving, J. C. E.

2015-12-01

The jump to university level exams can be challenging for some students, often resulting in poor marks, which may be detrimental to their confidence and ultimately affect their overall degree class. Previous studies have found that question structure can have a strong impact on the performance of students in college level exams (see Gibson et al., 2015, for a discussion of its impact on physics undergraduates). Here, we investigate the effect of question structure on the exam results of geology and geophysics undergraduate students. Specifically, we analyse the performance of students in questions that have a 'scaffolded' framework and compare them to their performance in open-ended questions and coursework. We also investigate if observed differences in exam performance are correlated with the educational background and gender of students, amongst other factors. It is important for all students to be able to access their degree courses, no matter what their backgrounds may be. Broadening participation in the geosciences relies on removing systematic barriers to achievement. Therefore we recommend that exams are either structured with scaffolding in questions at lower levels, or students are explicitly prepared for this transition. We also recommend that longitudinal studies of exam performance are conducted within individual departments, and this work outlines one approach to analysing performance data.

Control of the mitotic exit network during meiosis

Science.gov (United States)

Attner, Michelle A.; Amon, Angelika

2012-01-01

The mitotic exit network (MEN) is an essential GTPase signaling pathway that triggers exit from mitosis in budding yeast. We show here that during meiosis, the MEN is dispensable for exit from meiosis I but contributes to the timely exit from meiosis II. Consistent with a role for the MEN during meiosis II, we find that the signaling pathway is active only during meiosis II. Our analysis further shows that MEN signaling is modulated during meiosis in several key ways. Whereas binding of MEN components to spindle pole bodies (SPBs) is necessary for MEN signaling during mitosis, during meiosis MEN signaling occurs off SPBs and does not require the SPB recruitment factor Nud1. Furthermore, unlike during mitosis, MEN signaling is controlled through the regulated interaction between the MEN kinase Dbf20 and its activating subunit Mob1. Our data lead to the conclusion that a pathway essential for vegetative growth is largely dispensable for the specialized meiotic divisions and provide insights into how cell cycle regulatory pathways are modulated to accommodate different modes of cell division. PMID:22718910

MCTS Microsoft Windows 7 Configuration Study Guide Exam 70-680

CERN Document Server

Panek, William

2011-01-01

A fully updated study guide for MCTS exam 70-680 Demand for experienced, qualified Windows 7 administrators remains high. IT professionals seeking certification in Windows 7 administration will find everything they need to learn to pass the MCTS exam (70-680) in this complete Sybex Study Guide. Updated to cover the most recent version of the exam, this comprehensive guide examines all the exam objectives, using real-world scenarios, hands-on exercises, and challenging review questions.Certification in Windows 7 administration is highly prized by IT professionals and employers; this comprehensi

Providing Opportunities for Argumentation in Science Exam Settings

Science.gov (United States)

Swanson, Lauren; Solorza, Ruben; Fissore, Cinzia

2018-01-01

This article explores undergraduates' efforts to engage in scientific argumentation during exam settings. Thirteen undergraduate students enrolled in an environmental science course completed exams with questions linked around a central theme. Three types of questions were used, including those that prompted students to construct scientific…

Turbine-missile casing exit tests

International Nuclear Information System (INIS)

Yoshimura, H.R.; Sliter, G.E.

1978-01-01

Nuclear power plant designers are required to provide safety-related components with adequate protection against hypothetical turbine-missile impacts. In plants with a ''peninsula'' arrangement, protection is provided by installing the turbine axis radially from the reactor building, so that potential missile trajectories are not in line with the plant. In plants with a ''non-peninsula'' arrangement (turbine axis perpendicular to a radius), designers rely on the low probability of a missile strike and on the protection provided by reinforced concrete walls in order to demonstrate an adequate level of protection USNRC Regulatory Guide 1.115). One of the critical first steps in demonstrating adequacy is the determination of the energy and spin of the turbine segments as they exit the turbine casing. The spin increases the probability that a subsequent impact with a protective barrier will be off-normal and therefore less severe than the normal impact assumed in plant designs. Two full-scale turbine-missile casing exit tests which were conducted by Sandia Laboratories at their rocket-sled facility in Albuquerque, New Mexico, are described. Because of wide variations in turbine design details, postulated failure conditions, and missile exit scenarios, the conditions for the two tests were carefully selected to be as prototypical as possible, while still maintaining the well-controlled and well-characterized test conditions needed for generating benchmark data

Entry and Exit.

Science.gov (United States)

1987-03-01

1. Introduction R Analyses of industrial competition have attained a new vigor with the application of game -theoretic methods. The process of... competition is represented in models that reflect genuine struggles for entry, market power, and continuing survival. Dynamics and informational effects are...presents a few of the models developed recently to study competitive processes that affect a firm’s entry into a market , and the decision to exit. The

Exiting and Returning to the Parental Home for Boomerang Kids.

Science.gov (United States)

Sandberg-Thoma, Sara E; Snyder, Anastasia R; Jang, Bohyun Joy

2015-06-01

Young adults commonly exit from and return to the parental home, yet few studies have examined the motivation behind these exits and returns using a life course framework. Using data from the National Longitudinal Survey of Youth 1997, the authors examined associations between mental health problems and economic characteristics and exits from (n = 8,162), and returns to (n = 6,530), the parental home during the transition to adulthood. The average age of the respondents was 24 years. The authors found evidence that mental health and economic characteristics were related to home leaving and returning. Emotional distress was associated with earlier exits from, and returns to, the parental home; alcohol problems were associated with earlier returns to the parental home. The findings regarding economic resources were unexpectedly mixed. Greater economic resources were linked to delayed exits from, and earlier returns to, the parental home. The implications of these findings for young adults are discussed.

Shored gunshot wound of exit. A phenomenon with identity crisis.

Science.gov (United States)

Aguilar, J C

1983-09-01

Shored gunshot wound of exit is produced when the outstretched skin is impaled, sandwiched, and crushed between the outgoing bullet and the unyielding object over the exit site, thus leaving an abrasion collar on the wound margin. Proper coaptation of the wound margin is impossible because of the loss of skin just like those observed in entrance wounds. In contrast to the entrance wound, the supported exit wound shows a scalloped or punched-out abrasion collar and sharply contoured skin in between the radiating skin lacerations marginating the abrasion (Fig. 1). Should gunpowder be observed around the exit site, it is often unevenly distributed, and is not associated with searing, gunpowder stippled abrasion, tatooing, and deposition of soot.

INTERFERÊNCIAS EM EXAMES LABORATORIAIS: CRITÉRIO DIAGNÓSTICO PARA O DIABETES MELLITUS E PRINCIPAIS FÁRMACOS HIPOGLICEMIANTES

Directory of Open Access Journals (Sweden)

Daniela Hisaye KANASHIRO, Flávia Domingues GAMEIRO, Válter Luiz da COSTA JÚNIOR, Alexsandro Macedo SILVA, Luciane Maria RIBEIRO NETO, Reiko Soraya MATSUI, Sandro Jorge JANUÁRIO, Paulo Caleb Júnior de Lima SANTOS

2013-12-01

Full Text Available O diabetes mellitus (DM está entre as principais condições crônicas de saúde. O critério diagnóstico atual para o DM propõe os seguintes testes laboratoriais: glicose plasmática em jejum, hemoglobina glicada ou glicosilada, teste oral de tolerância à glicose, frutosamina, insulina, peptídeo C e glucagon. Estes exames laboratoriais podem apresentar interferências de medicamentos, sejam fisiológicas ou analíticas. Na literatura consultada foi possível identificar 30 fármacos ou grupo de fármacos que possuem evidências de interferir nos principais exames de diagnóstico da DM. Ressalta-se que praticamente na sua totalidade estes interferem nos níveis de glicemia, sendo que, 81,5% destes contribuem de forma a aumentar estes valores. Dentre estes fármacos encontram-se MIPs (medicamentos isentos de prescrição, como o paracetamol e o ácido acetilsalicílico, e anti-inflamatórios esteroidais, como a dexametasona e prednisolona, amplamente utilizados na terapêutica medicamentosa. Da mesma forma, os medicamentos empregados no tratamento de pacientes diabéticos incluído na RENAME como insulina NPH (protamina neutra Hagedorn, insulina humana regular, glibenclamida, gliclazida e cloridrato de metformina podem interferir em exames laboratoriais. O diagnóstico precoce e o tratamento adequado se fazem necessários a fim de prevenirem maiores danos aos portadores desta doença complexa sub diagnosticada. Neste contexto, as interferências medicamentosas são importantes achados nos exames laboratoriais que avaliam o DM e devem ser reconhecidas pelos profissionais de saúde envolvidos.

Cloud essentials CompTIA authorized courseware for exam CLO-001

CERN Document Server

Hausman, Kirk; Sampaio, Telmo

2013-01-01

CompTIA-Authorized courseware for the Cloud Essentials Exam (CLO-001) What better way to get up to speed on cloud computing than with this new book in the popular Sybex Essentials series? Cloud Essentials covers the basics of cloud computing and its place in the modern enterprise. Explore public and private clouds; contrast the ""as a service"" models for PaaS, SaaS, IaaS, or XaaS platforms; plan security; and more. In addition, the book covers the exam objectives for the both the CompTIA Cloud Essentials (Exam CLO-001) exam and the EXIN Cloud Computing Foundation (EX0-1

Are study strategies related to medical licensing exam performance?

Science.gov (United States)

West, Courtney; Kurz, Terri; Smith, Sherry; Graham, Lori

2014-11-02

To examine the relationship between study strategies and performance on a high stakes medical licensing exam entitled the United States Medical Licensing Examination Step 1. The action research project included seventy nine student participants at the Texas A & M Health Science Center College of Medicine during their pre-clinical education. Data collection included pre-matriculation and matriculation academic performance data, standardized exam data, and the Learning and Study Strategies Instrument. Multiple regression analyses were conducted. For both models, the dependent variable was the Step 1 score, and the independent variables included Medical College Admission Test, Undergraduate Grade Point Average, Year 1 Average, Year 2 Average, Customized National Board of Medical Examiners Average, Comprehensive Basic Science Exam score, and Learning and Study Strategy Instrument sub-scores. Model 2 added Comprehensive Basic Science Self-Assessment average. Concentration (Model 1 - β = .264; Model 2 - β = .254) was the only study strategy correlated with Step 1 performance. The other statistically significant predictors were Customized National Board of Medical Examiners Average (β = .315) and Year 2 Average (β = .280) in Model 1 and Comprehensive Basic Science Self-Assessment Average (β = .338) in Model 2. There does appear to be a relationship between the study strategy concentration and Step 1 licensing exam performance. Teaching students to practice and utilize certain techniques to improve concentration skills when preparing for and taking exams may help improve licensing exam scores.

Exit and Voice: Organizational Loyalty and Dispute Resolution Strategies

Science.gov (United States)

Hoffmann, Elizabeth A.

2006-01-01

This study compares workplace dispute resolution strategies (exit, voice and toleration) in matched pairs of conventional and worker-owned cooperative organizations operating in three industries--coal mining, taxicab driving and organic food distribution. Building on Hirschman's classic exit, voice and loyalty thesis, this research demonstrates…

Lingering illness or sudden death? Pre-exit employment developments in German establishments

OpenAIRE

Fackler, Daniel; Schnabel, Claus; Wagner, Joachim

2012-01-01

Using a large administrative dataset for Germany, this paper compares employment developments in exiting and surviving establishments. For both West and East Germany we find a clear 'shadow of death' effect reflecting lingering illness: establishments shrink dramatically already several years before closure, employment growth rates differ strongly between exiting and surviving establishments, and this difference becomes stronger as exit approaches. We further show that prior to exit the workf...

Effective dose and cancer risk in PET/CT exams; Dose efetiva e risco de cancer em exames de PET/CT

Energy Technology Data Exchange (ETDEWEB)

Pinto, Gabriella M.; Sa, Lidia Vasconcellos de, E-mail: montezano@ird.gov.br, E-mail: Iidia@ird.gov.br [Instituto de Radioprotecao e Dosimetria (IRD/CNEN-RJ), Rio de Janeiro, RJ (Brazil)

2013-07-01

Due to the use of radiopharmaceutical positron-emitting in PET exam and realization of tomography by x-ray transmission in CT examination, an increase of dose with hybrid PET/CT technology is expected. However, differences of doses have been reported in many countries for the same type of procedure. It is expected that the dose is an influent parameter to standardize the protocols of PET/CT. This study aimed to estimate the effective doses and absorbed in 65 patients submitted to oncological Protocol in a nuclear medicine clinic in Rio de Janeiro, considering the risk of induction of cancer from the scan. The CT exam-related doses were estimated with a simulator of PMMA and simulated on the lmPACT resistance, which for program effective dose, were considered the weight factors of the lCRP 103. The PET exam doses were estimated by multiplying the activity administered to the patient with the ICRP dose 80 factors. The radiological risk for cancer incidence were estimated according to the ICRP 103. The results showed that the effective dose from CT exam is responsible for 70% of the effective total in a PET/CT scan. values of effective dose for the PET/CT exam reached average values of up to 25 mSv leading to a risk of 2, 57 x 10{sup -4}. Considering that in staging of oncological diseases at least four tests are performed annually, the total risk comes to 1,03x 10{sup -3}.

Needs Analysis and Course Design; A Framework for Designing Exam Courses

Directory of Open Access Journals (Sweden)

Reza Eshtehardi

2017-09-01

Full Text Available This paper introduces a framework for designing exam courses and highlights the importance of needs analysis in designing exam courses. The main objectives of this paper are to highlight the key role of needs analysis in designing exam courses, to offer a framework for designing exam courses, to show the language needs of different students for IELTS (International English Language Testing System exam, to offer an analysis of those needs and to explain how they will be taken into account for the design of the course. First, I will concentrate on some distinguishing features in exam classes, which make them different from general English classes. Secondly, I will introduce a framework for needs analysis and diagnostic testing and highlight the importance of needs analysis for the design of syllabus and language courses. Thirdly, I will describe significant features of syllabus design, course assessment, and evaluation procedures.

Analysis of unexpected exits using the Fokker - Planck equation

NARCIS (Netherlands)

Herwaarden, van O.A.

1996-01-01

In this thesis exit problems are considered for stochastic dynamical systems with small random fluctuations. We study exit from a domain in the state space through a boundary, or a specified part of the boundary, that is unattainable in the underlying deterministic system. We analyze

Final Exam Weighting as Part of Course Design

Science.gov (United States)

Franke, Matthew

2018-01-01

The weighting of a final exam or a final assignment is an essential part of course design that is rarely discussed in pedagogical literature. Depending on the weighting, a final exam or assignment may provide unequal benefits to students depending on their prior performance in the class. Consequently, uncritical grade weighting can discount…

Development of the Exams Data Analysis Spreadsheet as a Tool to Help Instructors Conduct Customizable Analyses of Student ACS Exam Data

Science.gov (United States)

Brandriet, Alexandra; Holme, Thomas

2015-01-01

The American Chemical Society Examinations Institute (ACS-EI) has recently developed the Exams Data Analysis Spread (EDAS) as a tool to help instructors conduct customizable analyses of their student data from ACS exams. The EDAS calculations allow instructors to analyze their students' performances both at the total score and individual item…

The ExamBase Project at the University of Auckland 2001-2005

OpenAIRE

Holley, Rose

2005-01-01

Exam papers have always been a heavily used resource in University of Auckland libraries. Prior to 2001 the library provided hard copies of exam papers in all its 15 libraries. These were heavily used at all times of the year, especially in the weeks leading up to exams. In 1996 the University Library first began to explore the possibility of providing past exam papers electronically to University students and staff. In 2001 a trial pilot project was carried out, which was successful result...

Going, Going, Gone. Innovation and Exit in Manufacturing Firms

NARCIS (Netherlands)

E. Cefis (Elena); O. Marsili (Orietta)

2007-01-01

textabstractThis paper examines the effect of innovation on the risk of exit of a firm, distinguishing between different modes of exits. Innovation represents a resource and a capability that helps a firm to build competitive advantage and remain in the market. At the same time, the resources and

CWAP Certified Wireless Analysis Professional Official Study Guide Exam PW0-270

CERN Document Server

Westcott, David A; Miller, Ben; Mackenzie, Peter

2011-01-01

The official study guide for the Certified Wireless Analysis Professional certification from CWNPFour leading wireless experts thoroughly prepare you for the vendor-neutral CWAP exam administered by CWNP, the industry leader for enterprise Wi-Fi training and certification.  This official study guide not only covers all exam objectives for the CWAP exam, it also prepares you to administer and troubleshoot complex enterprise WLAN environments.Covers all exam objectives for the Certified Wireless Analysis Professional (CWAP) examCovers 802.11 physical (PHY) and 802.11 MAC layer frame formats and

Comparison of sources of exit fluence variation for IMRT

International Nuclear Information System (INIS)

Gardner, Joseph K; Gordon, J James; Wang Song; Siebers, Jeffrey V; Clews, Luke; Greer, Peter B

2009-01-01

The fluence exiting a patient during beam delivery can be used as treatment delivery quality assurance, either by direct comparison with expected exit fluences or by backprojection to reconstruct the patient dose. Multiple possible sources of measured exit fluence deviations exist, including changes in the beam delivery and changes in the patient anatomy. The purpose of this work is to compare the deviations caused by these sources. Machine delivery-related variability is measured by acquiring multiple dosimetric portal images (DPIs) of several test fields without a patient/phantom in the field over a time period of 2 months. Patient anatomy-related sources of fluence variability are simulated by computing transmission DPIs for a prostate patient using the same incident fluence for 11 different computed tomography (CT) images of the patient anatomy. The standard deviation (SD) and maximum deviation of the exit fluence, averaged over 5 mm x 5 mm square areas, is calculated for each test set. Machine delivery fluence SDs as large as 1% are observed for a sample patient field and as large as 2.5% for a picket-fence dMLC test field. Simulations indicate that day-to-day patient anatomy variations induce exit fluence SDs as large as 3.5%. The largest observed machine delivery deviations are 4% for the sample patient field and 7% for the picket-fence field, while the largest difference for the patient anatomy-related source is 8.5%. Since daily changes in patient anatomy can result in substantial exit fluence deviations, care should be taken when applying fluence back-projection to ensure that such deviations are properly attributed to their source. (note)

Observing and Deterring Social Cheating on College Exams

Science.gov (United States)

Fendler, Richard J.; Yates, Michael C.; Godbey, Johnathan M.

2018-01-01

This research introduces a unique multiple choice exam design to observe and measure the degree to which students copy answers from their peers. Using data collected from the exam, an empirical experiment is conducted to determine whether random seat assignment deters cheating relative to a control group of students allowed to choose their seats.…

Performance Analysis of Exam Gloves Used for Aseptic Rodent Surgery

Science.gov (United States)

LeMoine, Dana M; Bergdall, Valerie K; Freed, Carrie

2015-01-01

Aseptic technique includes the use of sterile surgical gloves for survival surgeries in rodents to minimize the incidence of infections. Exam gloves are much less expensive than are surgical gloves and may represent a cost-effective, readily available option for use in rodent surgery. This study examined the effectiveness of surface disinfection of exam gloves with 70% isopropyl alcohol or a solution of hydrogen peroxide and peracetic acid (HP–PA) in reducing bacterial contamination. Performance levels for asepsis were met when gloves were negative for bacterial contamination after surface disinfection and sham ‘exertion’ activity. According to these criteria, 94% of HP–PA-disinfected gloves passed, compared with 47% of alcohol-disinfected gloves. In addition, the effect of autoclaving on the integrity of exam gloves was examined, given that autoclaving is another readily available option for aseptic preparation. Performance criteria for glove integrity after autoclaving consisted of: the ability to don the gloves followed by successful simulation of wound closure and completion of stretch tests without tearing or observable defects. Using this criteria, 98% of autoclaved nitrile exam gloves and 76% of autoclaved latex exam gloves met performance expectations compared with the performance of standard surgical gloves (88% nitrile, 100% latex). The results of this study support the use of HP–PA-disinfected latex and nitrile exam gloves or autoclaved nitrile exam gloves as viable cost-effective alternatives to sterile surgical gloves for rodent surgeries. PMID:26045458

Performance analysis of exam gloves used for aseptic rodent surgery.

Science.gov (United States)

LeMoine, Dana M; Bergdall, Valerie K; Freed, Carrie

2015-05-01

Aseptic technique includes the use of sterile surgical gloves for survival surgeries in rodents to minimize the incidence of infections. Exam gloves are much less expensive than are surgical gloves and may represent a cost-effective, readily available option for use in rodent surgery. This study examined the effectiveness of surface disinfection of exam gloves with 70% isopropyl alcohol or a solution of hydrogen peroxide and peracetic acid (HP-PA) in reducing bacterial contamination. Performance levels for asepsis were met when gloves were negative for bacterial contamination after surface disinfection and sham 'exertion' activity. According to these criteria, 94% of HP-PA-disinfected gloves passed, compared with 47% of alcohol-disinfected gloves. In addition, the effect of autoclaving on the integrity of exam gloves was examined, given that autoclaving is another readily available option for aseptic preparation. Performance criteria for glove integrity after autoclaving consisted of: the ability to don the gloves followed by successful simulation of wound closure and completion of stretch tests without tearing or observable defects. Using this criteria, 98% of autoclaved nitrile exam gloves and 76% of autoclaved latex exam gloves met performance expectations compared with the performance of standard surgical gloves (88% nitrile, 100% latex). The results of this study support the use of HP-PA-disinfected latex and nitrile exam gloves or autoclaved nitrile exam gloves as viable cost-effective alternatives to sterile surgical gloves for rodent surgeries.

Gender discrimination in exam grading?

DEFF Research Database (Denmark)

Rangvid, Beatrice Schindler

2018-01-01

Girls, on average, obtain higher test scores in school than boys, and recent research suggests that part of this difference may be due to discrimination against boys in grading. This bias is consequential if admission to subsequent education programs is based on exam scores. This study assesses t...... tendencies are in accordance with statistical discrimination as a mechanism for grading bias in essay writing and with gender-stereotyped beliefs of math being a male domain....... are scored twice (blind and non-blind). Both strategies use difference-in-differences methods. Although imprecisely estimated, the point estimates indicate a blind grading advantage for boys in essay writing of approximately 5-8% SD, corresponding to 9-15% of the gender gap in essay exam grades. The effect...

Using an electronic portal imaging device for exit dose measurements in radiotherapy

International Nuclear Information System (INIS)

Ganowicz, M.; Wozniak, B.; Bekman, A.; Maniakowski, Z.

2003-01-01

To present a method of determining the exit dose with the use of an electronic portal imaging device (EPID). The device used was the Portal Vision LC250 (Varian). The EPID signals on the central beam axis have been related to the exit dose. The exit dose measurements were performed with the ionisation chamber in the slab phantom at the distance of dose maximum from the exit surface of the phantom. EPID reading was investigated as a function of field size, phantom thickness and source-detector distance. The relation between dose rate and the EPID reading is described with empirical functions applicable to the obtained data. The exit dose is calculated from the EPID reading as a product of the calibration factor and appropriate correction factors. The determination of the exit dose rate from the EPID signal requires the knowledge of many parameters and earlier determination of essential characteristics. (author)

CompTIA security+ review guide exam SY0-401

CERN Document Server

Stewart , James M

2014-01-01

Focused review for the CompTIA Security+ certification exam The CompTIA Security+ certification offers tremendous opportunities for IT professionals. For those who want to take their careers to the next level, CompTIA Security+ Review Guide: Exam SY0-401 is here to serve as a great resource for certification preparation. This concise, focused guide is easy to use and is organized by each exam objective for quick review and reinforcement of key topics. You'll find information on network security, compliance and operational security, and threats and vulnerabilities. Additionally, this indispensa

Should the MCAT exam be used for medical school admissions in Canada?

Science.gov (United States)

Eskander, Antoine; Shandling, Maureen; Hanson, Mark D

2013-05-01

In light of the structural and content changes to the Medical College Admission Test (MCAT) to be implemented in 2015 and the recent diversity- and social-accountability-based recommendations of the Future of Medical Education in Canada (FMEC) project, the authors review and reexamine the use of the MCAT exam in Canadian medical school admissions decisions.This Perspective article uses a point-counterpoint format to discuss three main advantages and disadvantages of using the MCAT exam in the medical school admissions process, from a Canadian perspective. The authors examine three questions regarding the FMEC recommendations and the revised MCAT exam: (1) Is the MCAT exam equal and useful in Canadian admissions? (2) Does the MCAT exam affect matriculant diversity? and (3) Is the MCAT exam a strong predictor of future performance? They present the most recent arguments and evidence for and against use of the MCAT exam, with the purpose of summarizing these different perspectives for readers.

UNFOLDED REGULAR AND SEMI-REGULAR POLYHEDRA

Directory of Open Access Journals (Sweden)

IONIŢĂ Elena

2015-06-01

Full Text Available This paper proposes a presentation unfolding regular and semi-regular polyhedra. Regular polyhedra are convex polyhedra whose faces are regular and equal polygons, with the same number of sides, and whose polyhedral angles are also regular and equal. Semi-regular polyhedra are convex polyhedra with regular polygon faces, several types and equal solid angles of the same type. A net of a polyhedron is a collection of edges in the plane which are the unfolded edges of the solid. Modeling and unfolding Platonic and Arhimediene polyhedra will be using 3dsMAX program. This paper is intended as an example of descriptive geometry applications.

The determinants of firm exit in the French food industries

OpenAIRE

Blanchard, Pierre; Mathieu, Claude

2012-01-01

A semi-parametric approach is used to estimate firm propensity to exit. The unobserved individual productivity of a firm is first estimated using the Ackerberg et al. (2006) approach and then introduced as a determinant of firm exit in conjunction with other variables that may serve as barriers to exit, including the firm’s level of sunk costs and the industry concentration. Using an unbalanced panel of data for 5,849 firms in French food industries from 1996 to 2002, we find a signifi...

Congenital Cervical Teratoma: Anaesthetic Management (The EXIT Procedure

Directory of Open Access Journals (Sweden)

Ferruh Bilgin

2009-01-01

Full Text Available Ex utero intrapartum treatment (EXIT is a procedure performed during caesarean section with preservation of fetal-placental circulation, which allows the safe handling of fetal airways with risk of airways obstruction. This report aimed at describing a case of anaesthesia for EXIT in a fetus with cervical teratoma. A 30-year-old woman, 70 kg, 160 cm, gravida 2, para 1, was followed because of polyhydramniosis diagnosed at 24 weeks′ gestation. During a routine ultrasonographic examination at 35 weeks′ gestation, it was noticed that the fetus had a tumoral mass on the anterior neck, the mass had cystic and calcified components and with a size of was 10 x 6 x5 cm. The patient with physical status ASA I, was submitted to caesarean section under general anaesthesia with mechanically controlled ventilation for exutero intrapartum treatment (EXIT. Anaesthesia was induced in rapid sequence with fentanyl, propofol and rocuronium and was maintained with isoflurane in 2.5 at 3 % in O 2 and N 2 O (50%. After hysterotomy, fetus was partially released assuring uterus-placental circulation, followed by fetal laryngoscopy and tracheal intuba-tion. The infant was intubated with an uncuffed, size 2.5 endotracheal tube. Excision of the mass was performed under general anaesthesia. After surgical intervention, on the fourth postoperative day, the infant was extubated and the newborn was discharged to the pediatric neonatal unit and on the seventh day postoperatively to home without complications. Major recommendations for EXIT are maternal-fetal safety, uterine relaxation to maintain uterine volume and uterus-placental circulation, and fetal immobility to help airway handling. We report one case of cervical teratoma managed successfully with EXIT procedure.

The Effect of Exit Strategy on Optimal Portfolio Selection with Birandom Returns

Directory of Open Access Journals (Sweden)

Guohua Cao

2013-01-01

Full Text Available The aims of this paper are to use a birandom variable to denote the stock return selected by some recurring technical patterns and to study the effect of exit strategy on optimal portfolio selection with birandom returns. Firstly, we propose a new method to estimate the stock return and use birandom distribution to denote the final stock return which can reflect the features of technical patterns and investors' heterogeneity simultaneously; secondly, we build a birandom safety-first model and design a hybrid intelligent algorithm to help investors make decisions; finally, we innovatively study the effect of exit strategy on the given birandom safety-first model. The results indicate that (1 the exit strategy affects the proportion of portfolio, (2 the performance of taking the exit strategy is better than when the exit strategy is not taken, if the stop-loss point and the stop-profit point are appropriately set, and (3 the investor using the exit strategy become conservative.

30 CFR 56.4530 - Exits.

Science.gov (United States)

2010-07-01

... Resources MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR METAL AND NONMETAL MINE SAFETY AND HEALTH SAFETY AND HEALTH STANDARDS-SURFACE METAL AND NONMETAL MINES Fire Prevention and Control... a sufficient number of exits to permit prompt escape in case of fire. ...

Multiple-Choice and Short-Answer Exam Performance in a College Classroom

Science.gov (United States)

Funk, Steven C.; Dickson, K. Laurie

2011-01-01

The authors experimentally investigated the effects of multiple-choice and short-answer format exam items on exam performance in a college classroom. They randomly assigned 50 students to take a 10-item short-answer pretest or posttest on two 50-item multiple-choice exams in an introduction to personality course. Students performed significantly…

Dialogic oral exam in nursing education: A qualitative study of nursing students' perceptions.

Science.gov (United States)

Turjamaa, Riitta; Hynynen, Marja-Anneli; Mikkonen, Irma; Ylinen, Eeva-Riitta

2018-03-01

The purpose of this articl is to explore nursing students' experiences of dialogic group oral exams used in the assessment of a medical nursing course. We discuss a small-group, educator-facilitated exam (dialogue exam). The data were gathered in April 2015 via an online survey including open questions. The participants were nursing students (n = 58) at a University of Applied Sciences. The data were subjected to inductive content analysis. The results suggest that students' experiences of the dialogue exam can be represented by four themes: context bound dynamics, new shared understanding, verified competences and holistic nursing care. The students liked the dialogue exam format, preferring it to the traditional individual written exam. The prerequisite for successful use of the dialogue exam format is that candidates perceived the exam situation as safe. Students need to be given information about the schedule and assessment criteria beforehand and should have some experience of the format. Copyright © 2017 Elsevier Ltd. All rights reserved.

STIMULATION METHODS IMPROVEMENT OF EXIT ROUTE ON RAILWAY TRANSPORT

Directory of Open Access Journals (Sweden)

A. I. Verlan

2014-01-01

Full Text Available Purpose. The purpose of the article is to assess the costs, which are redistributed in the system «shipper−railroad−consignee» during routing of rail transportation and the development of tariff simulation methods of shippers to the exit routes formation. Methodology. Using economic and mathematical analysis the distribution of costs among the various participants of transportation process during the exit routes formation is investigated in the article. Findings. For implementation of the tariff simulation methods of exit routes and retention of the existing tariff structure it is proposed to provide in the «Tariff catalogue for freight transportation by railway transport of Ukraine» the discount, differentiated from haulage distance. A new method for determining the fees amount for cars supply and removal on approach tracks by train locomotives was also offered. Originality. As a result of the research a new method for determination of the exit rout efficiency that, unlike the existing one, takes into account the various interests of the individual participants in the transportation process was proposed. The dependence of the correction factors to the tariff for freight transportation in their own cars by direct exit routes from distance haulage was obtained. Implementation of these coefficients provides an approximation of railway tariffs to the traffic handling costs. A method for determination the rate of fees for cars supply and removal on approach tracks by train locomotives was offered. Practical value. InUkraine creation of the tariff discounts system for freight transportation by exit routes consistent with international practice and allows bringing the tariff to the real traffic handling cost. This change on the one hand will provide stimulation for private capital investments in infrastructure development and shunting means of approach tracks, on the other – it will fix the shippers to the railroads and stop their outflow

Computer-aided training exam creation and personnel records management

International Nuclear Information System (INIS)

Lawton, R.K.; Louche, K.A.

1985-01-01

A problem has existed in nuclear power plant training departments about how to choose questions for examinations without instructor bias, how to permanently store this exam so that it can be reconstructed, how to statistically analyze class, instructor, and student performance, and how to keep accurate, easily accessible records of all training. The design of the software package discussed in the paper is such that a complete record of classes, quizzes, exams, instructors, and analysis is available for each trainee. The need for classes is automatically available from the computer with randomly created exams available on request

UOP FIN 571 Final Exam Guide New

OpenAIRE

ADMIN

2018-01-01

UOP FIN 571 Final Exam Guide New Check this A+ tutorial guideline at http://www.fin571assignment.com/fin-571-uop/fin-571-final-exam-guide -latest For more classes visit http://www.fin571assignment.com Question 1 The underlying assumption of the dividend growth model is that a stock is worth: A. An amount computed as the next annual dividend divided by the required rate of return. B. An amount computed as the next annual dividend divided by the ma...

Accuracy synthesis of T-shaped exit fixed mechanism in a double-crystal monochromator

International Nuclear Information System (INIS)

Wang Fengqin; Cao Chongzhen; Wang Jidai; Li Yushan; Gao Xueguan

2007-01-01

It is a key performance requirement for a double-crystal monochromator that the exit is fixed, and in order to improve the height accuracy of the exit in T-shaped exit fixed mechanism, the expression between the height of the exit and various original errors was put forward using geometrical analysis method. According to the independent action principle of original errors, accuracy synthesis of T-shaped exit fixed mechanism was studied by using the equal accuracy method, and the tolerance ranges of original errors were obtained. How to calculate the tolerance ranges of original errors was explained by giving an example. (authors)

Technological Progress, Exit and Trade

DEFF Research Database (Denmark)

Schröder, Philipp; Sørensen, Allan

productivity exporters are more likely to continue to export, and market exit is typically preceded by periods of contracting market shares. We show that the simple inclusion of exogenous economy wide technological progress into the standard Melitz (2003) model generates a tractable dynamic framework...

Do spouses coordinate their work exits? A combined survey and register analysis from Norway.

Science.gov (United States)

Syse, Astri; Solem, Per Erik; Ugreninov, Elisabeth; Mykletun, Reidar; Furunes, Trude

2014-09-01

Research on spouses' joint work exits is scarce, although household factors such as spouses' work status, marital quality, and caregiving burdens are likely to affect seniors' work engagement. We therefore examine whether the work exit probability of one spouse affects that of the other. Discrete-time hazard regression analyses of survey data linked to later registry information including all gainfully employed married respondents aged 50-74 with a working spouse (N = 1,764) were used to assess subsequent work exits. A spouse's work exit is a strong predictor of a respondent's work exit (hazard ratio 3.1, 95% confidence interval [2.5, 4.0]). Educational attainment, poor marital quality, and spouses' health and care needs do not predict work exits. Surprisingly, no gender differences are observed. Research on larger survey samples to distinguish different work exit routes and reasons for spouses' joint work exits appears warranted. To account for cultural and welfare state characteristics, cross-national studies ought to be undertaken. © The Author(s) 2013.

Experiment of cavitation erosion at the exit of a long orifice

Energy Technology Data Exchange (ETDEWEB)

Yagi, Yoshinori; Murase, Michio [Inst. of Nuclear Safety System Inc., Mihama, Fukui (Japan)

2002-09-01

We performed experiments to clarify mechanism of cavitation erosion and to predict cavitation erosion rate at the exit of a long orifice equipped at the chemical and volume control system in a pressurized water reactor (PWR). In order to find this mechanism, we used a high speed video camera. As the result, we observed bubble collapses near the exit of the orifice when flow condition was oscillating. So the bubble collapses due to the oscillation might cause the first stage erosion at the exit of the orifice. Using the orifice which had the cone-shaped exit, we observed that bubbles collapsed near the exit and then they collapsed at the upstream like a chain reaction. So this bubble collapse mechanism could be explained as follows: shock wave was generated by the bubble collapse near the exit, then it propagated upwards, consequently it caused the bubble collapse at the upstream. And we predicted erosion rate by evaluating the effect of the velocity and comparing the erosion resistance between the test speciment (aluminum) and the plant material (stainless steel) by means of vibratory tests. We compared the predicted erosion rate with that of the average value estimated from plant investigation, then we examined the applicability of these method to the plant evaluations. (author)

AWS certified solutions architect official study guide associate exam

CERN Document Server

Baron, Joe; Bixler, Tim; Gaut, Biff; Kelly, Kevin E; Senior, Sean; Stamper, John

2017-01-01

This is your opportunity to take the next step in your career by expanding and validating your skills on the AWS cloud. AWS has been the frontrunner in cloud computing products and services, and the AWS Certified Solutions Architect Official Study Guide for the Associate exam will get you fully prepared through expert content, and real-world knowledge, key exam essentials, chapter review questions, access to Sybex's interactive online learning environment, and much more. This official study guide, written by AWS experts, covers exam concepts, and provides key review on exam topics, including: * Mapping Multi-Tier Architectures to AWS Services, such as web/app servers, firewalls, caches and load balancers * Understanding managed RDBMS through AWS RDS (MySQL, Oracle, SQL Server, Postgres, Aurora) * Understanding Loose Coupling and Stateless Systems * Comparing Different Consistency Models in AWS Services * Understanding how AWS CloudFront can make your application more cost efficient, faster and secure * Implem...

“Understanding exit from the founder’s business in family firms”

OpenAIRE

C. Salvato; F. Chirico; P. Sharma

2010-01-01

In this chapter we investigate the role of family-specific factors in facilitating or constraining business exit in family firms. Family business literature seems to have an implicit bias towards continuity and persistence in the founder’s business. This is explained by heavy emotional involvement and development of path-dependent core competences over generations. However, several long-lived family firms were able to successfully exit the founder’s business. Exit allowed them to free signifi...

Diagnosis of Alzheimer's disease in Brazil: Supplementary exams

Directory of Open Access Journals (Sweden)

Paulo Caramelli

Full Text Available Abstract This article presents a review of the recommendations on supplementary exams employed for the clinical diagnosis of Alzheimer's disease (AD in Brazil published in 2005. A systematic assessment of the consensus reached in other countries, and of articles on AD diagnosis in Brazil available on the PUBMED and LILACS medical databases, was carried out. Recommended laboratory exams included complete blood count, serum creatinine, thyroid stimulating hormone (TSH, albumin, hepatic enzymes, Vitamin B12, folic acid, calcium, serological reactions for syphilis and serology for HIV in patients aged younger than 60 years with atypical clinical signs or suggestive symptoms. Structural neuroimaging, computed tomography or - preferably - magnetic resonance exams, are indicated for diagnostic investigation of dementia syndrome to rule out secondary etiologies. Functional neuroimaging exams (SPECT and PET, when available, increase diagnostic reliability and assist in the differential diagnosis of other types of dementia. The cerebrospinal fluid exam is indicated in cases of pre-senile onset dementia with atypical clinical presentation or course, for communicant hydrocephaly, and suspected inflammatory, infectious or prion disease of the central nervous system. Routine electroencephalograms aid the differential diagnosis of dementia syndrome with other conditions which impair cognitive functioning. Genotyping of apolipoprotein E or other susceptibility polymorphisms is not recommended for diagnostic purposes or for assessing the risk of developing the disease. Biomarkers related to the molecular alterations in AD are largely limited to use exclusively in research protocols, but when available can contribute to improving the accuracy of diagnosis of the disease.

Water-Exit Process Modeling and Added-Mass Calculation of the Submarine-Launched Missile

Directory of Open Access Journals (Sweden)

Yang Jian

2017-11-01

Full Text Available In the process that the submarine-launched missile exits the water, there is the complex fluid solid coupling phenomenon. Therefore, it is difficult to establish the accurate water-exit dynamic model. In the paper, according to the characteristics of the water-exit motion, based on the traditional method of added mass, considering the added mass changing rate, the water-exit dynamic model is established. And with help of the CFX fluid simulation software, a new calculation method of the added mass that is suit for submarine-launched missile is proposed, which can effectively solve the problem of fluid solid coupling in modeling process. Then by the new calculation method, the change law of the added mass in water-exit process of the missile is obtained. In simulated analysis, for the water-exit process of the missile, by comparing the results of the numerical simulation and the calculation of theoretical model, the effectiveness of the new added mass calculation method and the accuracy of the water-exit dynamic model that considers the added mass changing rate are verified.

Collective behavior of mice passing through an exit under panic

Science.gov (United States)

Zhang, Teng; Zhang, Xuelin; Huang, Shenshi; Li, Changhai; Lu, Shouxiang

2018-04-01

Collective movement of animal in emergency condition has attracted growing attentions among researchers. However, many rules still need to be confirmed with adequate explanation. Study of collective behavior of mice can improve our understanding about the dynamics of pedestrian movement. However, its rules still need to be confirmed with adequate explanation. In this paper, collective behavior of mice passing through an exit under panic was investigated. The results showed that the total evacuation time decreased with exit width increasing in a certain range. Based on the different tendency of the curve in temporal evolution, the process of mice flow was divided into three stages. The density of mice near the exit peaks at a certain horizontal offset and starts to decrease over time. With the increase of the exit width, the duration of the higher density state decreased. We found that the frequency of time intervals obeyed a lognormal distribution or an exponential decay for different exit widths. In addition, the relationship between the group size and the group flow rate in different scenarios was analyzed. The phenomena found in our experiments show the collective behavioral characteristic of mice under panic. Our analysis in this paper will deepen our understanding of crowd dynamics in emergency condition.

Redesigning the MCAT exam: balancing multiple perspectives.

Science.gov (United States)

Schwartzstein, Richard M; Rosenfeld, Gary C; Hilborn, Robert; Oyewole, Saundra Herndon; Mitchell, Karen

2013-05-01

The authors of this commentary discuss the recently completed review of the current Medical College Admission Test (MCAT), which has been used since 1991, and describe the blueprint for the new test that will be introduced in 2015. The design of the MCAT exam reflects changes in medical education, medical science, health care delivery, and the needs of the populations served by graduates of U.S. and Canadian medical schools. The authors describe how balancing the ambitious goals for the new exam and the varying priorities of the testing program's many stakeholders made blueprint design complex. They discuss the tensions and trade-offs that characterized the design process as well as the deliberations and data that shaped the blueprint.The blueprint for the MCAT exam balances the assessment of a broad range of competencies in the natural, social, and behavioral sciences and critical analysis and reasoning skills that are essential to entering students' success in medical school. The exam will include four sections: Biological and Biochemical Foundations of Living Systems; Chemical and Physical Foundations of Biological Systems; Psychological, Social, and Biological Foundations of Behavior; and Critical Analysis and Reasoning Skills.The authors also offer recommendations for admission committees, advising them to review applicants' test scores, course work, and other academic, personal, and experiential credentials as part of a holistic admission process and in relation to their institutions' educational, scientific, clinical, and service-oriented goals.

Investigating the Variables in a Mock Exam Study Session Designed to Improve Student Exam Performance in an Undergraduate Behavior Modification and Therapy Course

Science.gov (United States)

Dotson, Wesley H.

2010-01-01

The purpose of the present study was to identify components of an optional mock exam review session (e.g. requiring students to write answers, providing students grading keys for questions) responsible for improvements in student performance on application-based short-essay exams in an undergraduate behavior modification course. Both…

30 CFR 57.4530 - Exits for surface buildings and structures.

Science.gov (United States)

2010-07-01

... 30 Mineral Resources 1 2010-07-01 2010-07-01 false Exits for surface buildings and structures. 57... Fire Prevention and Control Installation/construction/maintenance § 57.4530 Exits for surface buildings and structures. Surface buildings or structures in which persons work shall have a sufficient number...

Exit, punishment and rewards in commons dilemmas: an experimental study.

Directory of Open Access Journals (Sweden)

Giangiacomo Bravo

Full Text Available Commons dilemmas are interaction situations where a common good is provided or exploited by a group of individuals so that optimal collective outcomes clash with private interests. Although in these situations, social norms and institutions exist that might help individuals to cooperate, little is known about the interaction effects between positive and negative incentives and exit options by individuals. We performed a modified public good game experiment to examine the effect of exit, rewards and punishment, as well as the interplay between exit and rewards and punishment. We found that punishment had a stronger effect than rewards on cooperation if considered by itself, whereas rewards had a stronger effect when combined with voluntary participation. This can be explained in terms of the 'framing effect', i.e., as the combination of exit and rewards might induce people to attach higher expected payoffs to cooperative strategies and expect better behaviour from others.

Identification of moving vehicle forces on bridge structures via moving average Tikhonov regularization

Science.gov (United States)

Pan, Chu-Dong; Yu, Ling; Liu, Huan-Lin

2017-08-01

Traffic-induced moving force identification (MFI) is a typical inverse problem in the field of bridge structural health monitoring. Lots of regularization-based methods have been proposed for MFI. However, the MFI accuracy obtained from the existing methods is low when the moving forces enter into and exit a bridge deck due to low sensitivity of structural responses to the forces at these zones. To overcome this shortcoming, a novel moving average Tikhonov regularization method is proposed for MFI by combining with the moving average concepts. Firstly, the bridge-vehicle interaction moving force is assumed as a discrete finite signal with stable average value (DFS-SAV). Secondly, the reasonable signal feature of DFS-SAV is quantified and introduced for improving the penalty function (∣∣x∣∣2 2) defined in the classical Tikhonov regularization. Then, a feasible two-step strategy is proposed for selecting regularization parameter and balance coefficient defined in the improved penalty function. Finally, both numerical simulations on a simply-supported beam and laboratory experiments on a hollow tube beam are performed for assessing the accuracy and the feasibility of the proposed method. The illustrated results show that the moving forces can be accurately identified with a strong robustness. Some related issues, such as selection of moving window length, effect of different penalty functions, and effect of different car speeds, are discussed as well.

X-Ray Exam: Cervical Spine

Science.gov (United States)

... Staying Safe Videos for Educators Search English Español X-Ray Exam: Cervical Spine KidsHealth / For Parents / X-Ray ... MRI): Lumbar Spine Broken Bones Getting an X-ray (Video) X-Ray (Video) View more Partner Message About Us ...

Critical heat flux and exit film flow rate in a flow boiling system

International Nuclear Information System (INIS)

Ueda, Tatsuhiro; Isayama, Yasushi

1981-01-01

The critical heat flux in a flowing boiling system is an important problem in the evaporating tubes with high thermal load such as nuclear reactors and boilers, and gives the practical design limit. When the heat flux in uniformly heated evaporating tubes is gradually raised, the tube exit quality increases, and soon, the critical heat flux condition arises, and the wall temperature near tube exit rises rapidly. In the region of low exit quality, the critical heat flux condition is caused by the transition from nucleating boiling, and in the region of high exit quality, it is caused by dry-out. But the demarcation of both regions is not clear. In this study, for the purpose of obtaining the knowledge concerning the critical heat flux condition in a flowing boiling system, the relation between the critical heat flux and exit liquid film flow rate was examined. For the experiment, a uniformly heated vertical tube supplying R 113 liquid was used, and the measurement in the range of higher heating flux and mass velocity than the experiment by Ueda and Kin was carried out. The experimental setup and experimental method, the critical heat flux and exit quality, the liquid film flow rate at heating zone exit, and the relation between the critical heat flux and the liquid film flow rate at exit are described. (Kako, I.)

First Degree Pacemaker Exit Block

Directory of Open Access Journals (Sweden)

Johnson Francis

2016-10-01

Full Text Available Usually atrial and ventricular depolarizations follow soon after the pacemaker stimulus (spike on the ECG. But there can be an exit block due to fibrosis at the electrode - tissue interface at the lead tip. This can increase the delay between the spike and atrial or ventricular depolarization.

Exit Planning At Joost El

DEFF Research Database (Denmark)

Nellemann, Camilla

2017-01-01

This is a Danish version. This case focuses on an owner-manager's considerations regarding his exit. Carsten Joost established Joost El in 2005. It currently employs 10 people. He has two sons but no intention to hand over the business to them. Rather, he hopes that his key employee eventually...

Improving Patient Safety: Avoiding Unread Imaging Exams in the National VA Enterprise Electronic Health Record.

Science.gov (United States)

Bastawrous, Sarah; Carney, Benjamin

2017-06-01

In the current digital and filmless age of radiology, rates of unread radiology exams remain low, however, may still exist in unique environments. Veterans Affairs (VA) health care systems may experience higher rates of unread exams due to coexistence of Veterans Health Information Systems and Technology Architecture (VistA) imaging and commercial picture archiving and communication systems (PACS). The purpose of this patient safety initiative was to identify any unread exams and causes leading to unread exams. Following approval by departmental quality assurance committee, a comprehensive review was performed of all radiology exams within VistA imaging from July 1, 2009 to June 30, 2014 to identify unread radiology exams. Over the 5-year period, the total unread exam rate was calculated to be 0.17%, with the highest yearly unread exam rate of 0.25%. The leading majority of unread exam type was plain radiographs. Analysis revealed unfinished dictations, unassociated accession numbers, technologist errors, and inefficient radiologist work lists as top contributors to unread exams. Once unread radiology exams were discovered and the causes identified, valuable process changes were implemented within our department to ensure simultaneous tracking of all unread exams in VistA imaging as well as the commercial PACS.

Self-Directed Learning Modules for Independent Learning: IELTS Exam Preparation

Directory of Open Access Journals (Sweden)

Brian R. Morrison

2011-06-01

Full Text Available Learners studying for exams sometimes show a lack of awareness in their abilities as tested through the framework of that exam. Instead, such learners focus on the score obtained in exams, and exam preparation includes using textbooks, online materials and timed use of past papers. The purpose of exam-focused flexible self-directed learning modules (FSDLMs at Kanda University of International Studies have been designed to address this by developing learners’ ability to identify their strengths and weaknesses, to make informed decisions about their own learning, and to improve their test-taking skills. Each FSDLM has at its core a diagnostic for learners to use for self-evaluation, often with guidance from a learning advisor. This process leads to the setting of clear goals and the development and implementation of an individual learning plan through a variety of dialogues. Learners have the potential to transfer this skill beyond examination preparation to other areas of learning. In other words, learners’ awareness of needs analysis, planning, implementation and evaluation is fostered with a view to developing their language learning ability within and beyond this module.

Effects of injection nozzle exit width on rotating detonation engine

Science.gov (United States)

Sun, Jian; Zhou, Jin; Liu, Shijie; Lin, Zhiyong; Cai, Jianhua

2017-11-01

A series of numerical simulations of RDE modeling real injection nozzles with different exit widths are performed in this paper. The effects of nozzle exit width on chamber inlet state, plenum flowfield and detonation propagation are analyzed. The results are compared with that using an ideal injection model. Although the ideal injection model is a good approximation method to model RDE inlet, the two-dimensional effects of real nozzles are ignored in the ideal injection model so that some complicated phenomena such as the reflected waves caused by the nozzle walls and the reversed flow into the nozzles can not be modeled accurately. Additionally, the ideal injection model overpredicts the block ratio. In all the cases that stabilize at one-wave mode, the block ratio increases as the nozzle exit width gets smaller. The dual-wave mode case also has a relatively high block ratio. A pressure oscillation in the plenum with the same main frequency with the rotating detonation wave is observed. A parameter σ is applied to describe the non-uniformity in the plenum. σ increases as the nozzle exit width gets larger. Under some condition, the heat release on the interface of fresh premixed gas layer and detonation products can be strong enough to induce a new detonation wave. A spontaneous mode-transition process is observed for the smallest exit width case. Due to the detonation products existing in the premixed gas layer before the detonation wave, the detonation wave will propagate through reactants and products alternately, and therefore its strength will vary with time, especially near the chamber inlet. This tendency gets weaker as the injection nozzle exit width increases.

Revisit the faster-is-slower effect for an exit at a corner

Science.gov (United States)

Chen, Jun Min; Lin, Peng; Wu, Fan Yu; Li Gao, Dong; Wang, Guo Yuan

2018-02-01

The faster-is-slower effect (FIS), which means that crowd at a high enough velocity could significantly increase the evacuation time to escape through an exit, is an interesting phenomenon in pedestrian dynamics. Such phenomenon had been studied widely and has been experimentally verified in different systems of discrete particles flowing through a centre exit. To experimentally validate this phenomenon by using people under high pressure is difficult due to ethical issues. A mouse, similar to a human, is a kind of self-driven and soft body creature with competitive behaviour under stressed conditions. Therefore, mice are used to escape through an exit at a corner. A number of repeated tests are conducted and the average escape time per mouse at different levels of stimulus are analysed. The escape times do not increase obviously with the level of stimulus for the corner exit, which is contrary to the experiment with the center exit. The experimental results show that the FIS effect is not necessary a universal law for any discrete system. The observation could help the design of buildings by relocating their exits to the corner in rooms to avoid the formation of FIS effect.

Preparing Students to Take SOA/CAS Exam FM/2

Science.gov (United States)

Marchand, Richard J.

2014-01-01

This paper provides suggestions for preparing students to take the actuarial examination on financial mathematics, SOA/CAS Exam FM/2. It is based on current practices employed at Slippery Rock University, a small public liberal arts university. Detailed descriptions of our Theory of Interest course and subsequent Exam FM/2 prep course are provided…

Hot topics flashcards for passing the PMP and CAPM exams

CERN Document Server

Mulcahy, Rita

2013-01-01

If you are looking for a way to prepare for the PMP or the CAPM exam that fits into your busy schedule, these flashcards are it. Now you can study at the office, on a plane or even in your car with RMC's portable and extremely valuable Hot Topics Exam Flashcards-in hard copy or audio CD format. Over 300 of the most important and difficult to recall PMP® and CAPM® exam-related terms and concepts are now available for study as you drive, fly or take your lunch break. Order them both!

MO-F-204-01: Preparing for Part 1 of the ABR Diagnostic Physics Exam

International Nuclear Information System (INIS)

McKenney, S.

2016-01-01

Adequate, efficient preparation for the ABR Diagnostic and Nuclear Medical Physics exams is key to successfully obtain ABR certification. Each part of the ABR exam presents its own challenges: Part I: Determine the scope of basic medical physics study material, efficiently review this material, and solve related written questions/problems. Part II: Understand imaging principles, modalities, and systems, including image acquisition, processing, and display. Understand the relationship between imaging techniques, image quality, patient dose and safety, and solve related written questions/problems. Part III: Gain crucial, practical, clinical medical physics experience. Effectively communicate and explain the practice, performance, and significance of all aspects of clinical medical physics. All parts of the ABR exam require specific skill sets and preparation: mastery of basic physics and imaging principles; written problem solving often involving rapid calculation; responding clearly and succinctly to oral questions about the practice, methods, and significance of clinical medical physics. This symposium focuses on the preparation necessary for each part of the ABR exam. Although there is some overlap, the nuclear exam covers a different body of knowledge than the diagnostic exam. A separate speaker will address those unique aspects of the nuclear exam, and how preparing for a second specialty differs from the first. Medical physicists who recently completed each ABR exam portion will share their experiences, insights, and preparation methods to help attendees best prepare for the challenges of each part of the ABR exam. In accordance with ABR exam security policy, no recalls or exam questions will be discussed. Learning Objectives: How to prepare for Part 1 of the ABR exam by determining the scope of basic medical physics study material and related problem solving/calculations How to prepare for Part 2 of the ABR exam by understanding diagnostic and/or nuclear

WE-D-213-03: Preparing for Part 3 of the ABR Diagnostic Physics Exam

International Nuclear Information System (INIS)

Bevins, N.

2015-01-01

Adequate, efficient preparation for the ABR Diagnostic and Nuclear Medical Physics exams is key to successfully obtain ABR professional certification. Each part of the ABR exam presents its own challenges: Part I: Determine the scope of basic medical physics study material, efficiently review this material, and solve related written questions/problems. Part II: Understand imaging principles, modalities, and systems, including image acquisition, processing, and display. Understand the relationship between imaging techniques, image quality, patient dose and safety, and solve related written questions/problems. Part III: Gain crucial, practical, clinical medical physics experience. Effectively communicate and explain the practice, performance, and significance of all aspects of clinical medical physics. All three parts of the ABR exam require specific skill sets and preparation: mastery of basic physics and imaging principles; written problem solving often involving rapid calculation; responding clearly and succinctly to oral questions about the practice, methods, and significance of clinical medical physics. This symposium focuses on the preparation and skill sets necessary for each part of the ABR exam. Although there is some overlap, the nuclear exam covers a different body of knowledge than the diagnostic exam. A separate speaker will address those aspects that are unique to the nuclear exam. Medical physicists who have recently completed each of part of the ABR exam will share their experiences, insights, and preparation methods to help attendees best prepare for the challenges of each part of the ABR exam. In accordance with ABR exam security policy, no recalls or exam questions will be discussed. Learning Objectives: How to prepare for Part 1 of the ABR exam by determining the scope of basic medical physics study material and related problem solving/calculations How to Prepare for Part 2 of the ABR exam by understanding diagnostic and/or nuclear imaging physics

MO-F-204-02: Preparing for Part 2 of the ABR Diagnostic Physics Exam

International Nuclear Information System (INIS)

Szczykutowicz, T.

2016-01-01

Adequate, efficient preparation for the ABR Diagnostic and Nuclear Medical Physics exams is key to successfully obtain ABR certification. Each part of the ABR exam presents its own challenges: Part I: Determine the scope of basic medical physics study material, efficiently review this material, and solve related written questions/problems. Part II: Understand imaging principles, modalities, and systems, including image acquisition, processing, and display. Understand the relationship between imaging techniques, image quality, patient dose and safety, and solve related written questions/problems. Part III: Gain crucial, practical, clinical medical physics experience. Effectively communicate and explain the practice, performance, and significance of all aspects of clinical medical physics. All parts of the ABR exam require specific skill sets and preparation: mastery of basic physics and imaging principles; written problem solving often involving rapid calculation; responding clearly and succinctly to oral questions about the practice, methods, and significance of clinical medical physics. This symposium focuses on the preparation necessary for each part of the ABR exam. Although there is some overlap, the nuclear exam covers a different body of knowledge than the diagnostic exam. A separate speaker will address those unique aspects of the nuclear exam, and how preparing for a second specialty differs from the first. Medical physicists who recently completed each ABR exam portion will share their experiences, insights, and preparation methods to help attendees best prepare for the challenges of each part of the ABR exam. In accordance with ABR exam security policy, no recalls or exam questions will be discussed. Learning Objectives: How to prepare for Part 1 of the ABR exam by determining the scope of basic medical physics study material and related problem solving/calculations How to prepare for Part 2 of the ABR exam by understanding diagnostic and/or nuclear

WE-D-213-01: Preparing for Part 1 of the ABR Diagnostic Physics Exam

International Nuclear Information System (INIS)

Simiele, S.

2015-01-01

Adequate, efficient preparation for the ABR Diagnostic and Nuclear Medical Physics exams is key to successfully obtain ABR professional certification. Each part of the ABR exam presents its own challenges: Part I: Determine the scope of basic medical physics study material, efficiently review this material, and solve related written questions/problems. Part II: Understand imaging principles, modalities, and systems, including image acquisition, processing, and display. Understand the relationship between imaging techniques, image quality, patient dose and safety, and solve related written questions/problems. Part III: Gain crucial, practical, clinical medical physics experience. Effectively communicate and explain the practice, performance, and significance of all aspects of clinical medical physics. All three parts of the ABR exam require specific skill sets and preparation: mastery of basic physics and imaging principles; written problem solving often involving rapid calculation; responding clearly and succinctly to oral questions about the practice, methods, and significance of clinical medical physics. This symposium focuses on the preparation and skill sets necessary for each part of the ABR exam. Although there is some overlap, the nuclear exam covers a different body of knowledge than the diagnostic exam. A separate speaker will address those aspects that are unique to the nuclear exam. Medical physicists who have recently completed each of part of the ABR exam will share their experiences, insights, and preparation methods to help attendees best prepare for the challenges of each part of the ABR exam. In accordance with ABR exam security policy, no recalls or exam questions will be discussed. Learning Objectives: How to prepare for Part 1 of the ABR exam by determining the scope of basic medical physics study material and related problem solving/calculations How to Prepare for Part 2 of the ABR exam by understanding diagnostic and/or nuclear imaging physics

WE-D-213-00: Preparing for the ABR Diagnostic and Nuclear Medicine Physics Exams

Energy Technology Data Exchange (ETDEWEB)

NONE

2015-06-15

Adequate, efficient preparation for the ABR Diagnostic and Nuclear Medical Physics exams is key to successfully obtain ABR professional certification. Each part of the ABR exam presents its own challenges: Part I: Determine the scope of basic medical physics study material, efficiently review this material, and solve related written questions/problems. Part II: Understand imaging principles, modalities, and systems, including image acquisition, processing, and display. Understand the relationship between imaging techniques, image quality, patient dose and safety, and solve related written questions/problems. Part III: Gain crucial, practical, clinical medical physics experience. Effectively communicate and explain the practice, performance, and significance of all aspects of clinical medical physics. All three parts of the ABR exam require specific skill sets and preparation: mastery of basic physics and imaging principles; written problem solving often involving rapid calculation; responding clearly and succinctly to oral questions about the practice, methods, and significance of clinical medical physics. This symposium focuses on the preparation and skill sets necessary for each part of the ABR exam. Although there is some overlap, the nuclear exam covers a different body of knowledge than the diagnostic exam. A separate speaker will address those aspects that are unique to the nuclear exam. Medical physicists who have recently completed each of part of the ABR exam will share their experiences, insights, and preparation methods to help attendees best prepare for the challenges of each part of the ABR exam. In accordance with ABR exam security policy, no recalls or exam questions will be discussed. Learning Objectives: How to prepare for Part 1 of the ABR exam by determining the scope of basic medical physics study material and related problem solving/calculations How to Prepare for Part 2 of the ABR exam by understanding diagnostic and/or nuclear imaging physics

WE-D-213-02: Preparing for Part 2 of the ABR Diagnostic Physics Exam

Energy Technology Data Exchange (ETDEWEB)

Zambelli, J. [Spectrum Health, Grand Rapids, MI (United States)

2015-06-15

Adequate, efficient preparation for the ABR Diagnostic and Nuclear Medical Physics exams is key to successfully obtain ABR professional certification. Each part of the ABR exam presents its own challenges: Part I: Determine the scope of basic medical physics study material, efficiently review this material, and solve related written questions/problems. Part II: Understand imaging principles, modalities, and systems, including image acquisition, processing, and display. Understand the relationship between imaging techniques, image quality, patient dose and safety, and solve related written questions/problems. Part III: Gain crucial, practical, clinical medical physics experience. Effectively communicate and explain the practice, performance, and significance of all aspects of clinical medical physics. All three parts of the ABR exam require specific skill sets and preparation: mastery of basic physics and imaging principles; written problem solving often involving rapid calculation; responding clearly and succinctly to oral questions about the practice, methods, and significance of clinical medical physics. This symposium focuses on the preparation and skill sets necessary for each part of the ABR exam. Although there is some overlap, the nuclear exam covers a different body of knowledge than the diagnostic exam. A separate speaker will address those aspects that are unique to the nuclear exam. Medical physicists who have recently completed each of part of the ABR exam will share their experiences, insights, and preparation methods to help attendees best prepare for the challenges of each part of the ABR exam. In accordance with ABR exam security policy, no recalls or exam questions will be discussed. Learning Objectives: How to prepare for Part 1 of the ABR exam by determining the scope of basic medical physics study material and related problem solving/calculations How to Prepare for Part 2 of the ABR exam by understanding diagnostic and/or nuclear imaging physics

MO-F-204-01: Preparing for Part 1 of the ABR Diagnostic Physics Exam

Energy Technology Data Exchange (ETDEWEB)

McKenney, S. [Children’s National Medical Center (United States)

2016-06-15

Adequate, efficient preparation for the ABR Diagnostic and Nuclear Medical Physics exams is key to successfully obtain ABR certification. Each part of the ABR exam presents its own challenges: Part I: Determine the scope of basic medical physics study material, efficiently review this material, and solve related written questions/problems. Part II: Understand imaging principles, modalities, and systems, including image acquisition, processing, and display. Understand the relationship between imaging techniques, image quality, patient dose and safety, and solve related written questions/problems. Part III: Gain crucial, practical, clinical medical physics experience. Effectively communicate and explain the practice, performance, and significance of all aspects of clinical medical physics. All parts of the ABR exam require specific skill sets and preparation: mastery of basic physics and imaging principles; written problem solving often involving rapid calculation; responding clearly and succinctly to oral questions about the practice, methods, and significance of clinical medical physics. This symposium focuses on the preparation necessary for each part of the ABR exam. Although there is some overlap, the nuclear exam covers a different body of knowledge than the diagnostic exam. A separate speaker will address those unique aspects of the nuclear exam, and how preparing for a second specialty differs from the first. Medical physicists who recently completed each ABR exam portion will share their experiences, insights, and preparation methods to help attendees best prepare for the challenges of each part of the ABR exam. In accordance with ABR exam security policy, no recalls or exam questions will be discussed. Learning Objectives: How to prepare for Part 1 of the ABR exam by determining the scope of basic medical physics study material and related problem solving/calculations How to prepare for Part 2 of the ABR exam by understanding diagnostic and/or nuclear

MO-F-204-00: Preparing for the ABR Diagnostic and Nuclear Medical Physics Exams

Energy Technology Data Exchange (ETDEWEB)

NONE

2016-06-15

Adequate, efficient preparation for the ABR Diagnostic and Nuclear Medical Physics exams is key to successfully obtain ABR certification. Each part of the ABR exam presents its own challenges: Part I: Determine the scope of basic medical physics study material, efficiently review this material, and solve related written questions/problems. Part II: Understand imaging principles, modalities, and systems, including image acquisition, processing, and display. Understand the relationship between imaging techniques, image quality, patient dose and safety, and solve related written questions/problems. Part III: Gain crucial, practical, clinical medical physics experience. Effectively communicate and explain the practice, performance, and significance of all aspects of clinical medical physics. All parts of the ABR exam require specific skill sets and preparation: mastery of basic physics and imaging principles; written problem solving often involving rapid calculation; responding clearly and succinctly to oral questions about the practice, methods, and significance of clinical medical physics. This symposium focuses on the preparation necessary for each part of the ABR exam. Although there is some overlap, the nuclear exam covers a different body of knowledge than the diagnostic exam. A separate speaker will address those unique aspects of the nuclear exam, and how preparing for a second specialty differs from the first. Medical physicists who recently completed each ABR exam portion will share their experiences, insights, and preparation methods to help attendees best prepare for the challenges of each part of the ABR exam. In accordance with ABR exam security policy, no recalls or exam questions will be discussed. Learning Objectives: How to prepare for Part 1 of the ABR exam by determining the scope of basic medical physics study material and related problem solving/calculations How to prepare for Part 2 of the ABR exam by understanding diagnostic and/or nuclear

MO-F-204-02: Preparing for Part 2 of the ABR Diagnostic Physics Exam

Energy Technology Data Exchange (ETDEWEB)

Szczykutowicz, T. [University Wisconsin-Madison (United States)

2016-06-15

Adequate, efficient preparation for the ABR Diagnostic and Nuclear Medical Physics exams is key to successfully obtain ABR certification. Each part of the ABR exam presents its own challenges: Part I: Determine the scope of basic medical physics study material, efficiently review this material, and solve related written questions/problems. Part II: Understand imaging principles, modalities, and systems, including image acquisition, processing, and display. Understand the relationship between imaging techniques, image quality, patient dose and safety, and solve related written questions/problems. Part III: Gain crucial, practical, clinical medical physics experience. Effectively communicate and explain the practice, performance, and significance of all aspects of clinical medical physics. All parts of the ABR exam require specific skill sets and preparation: mastery of basic physics and imaging principles; written problem solving often involving rapid calculation; responding clearly and succinctly to oral questions about the practice, methods, and significance of clinical medical physics. This symposium focuses on the preparation necessary for each part of the ABR exam. Although there is some overlap, the nuclear exam covers a different body of knowledge than the diagnostic exam. A separate speaker will address those unique aspects of the nuclear exam, and how preparing for a second specialty differs from the first. Medical physicists who recently completed each ABR exam portion will share their experiences, insights, and preparation methods to help attendees best prepare for the challenges of each part of the ABR exam. In accordance with ABR exam security policy, no recalls or exam questions will be discussed. Learning Objectives: How to prepare for Part 1 of the ABR exam by determining the scope of basic medical physics study material and related problem solving/calculations How to prepare for Part 2 of the ABR exam by understanding diagnostic and/or nuclear

MO-F-204-03: Preparing for Part 3 of the ABR Diagnostic Physics Exam

Energy Technology Data Exchange (ETDEWEB)

Zambelli, J. [Spectrum Health Grand Rapids (United States)

2016-06-15

Adequate, efficient preparation for the ABR Diagnostic and Nuclear Medical Physics exams is key to successfully obtain ABR certification. Each part of the ABR exam presents its own challenges: Part I: Determine the scope of basic medical physics study material, efficiently review this material, and solve related written questions/problems. Part II: Understand imaging principles, modalities, and systems, including image acquisition, processing, and display. Understand the relationship between imaging techniques, image quality, patient dose and safety, and solve related written questions/problems. Part III: Gain crucial, practical, clinical medical physics experience. Effectively communicate and explain the practice, performance, and significance of all aspects of clinical medical physics. All parts of the ABR exam require specific skill sets and preparation: mastery of basic physics and imaging principles; written problem solving often involving rapid calculation; responding clearly and succinctly to oral questions about the practice, methods, and significance of clinical medical physics. This symposium focuses on the preparation necessary for each part of the ABR exam. Although there is some overlap, the nuclear exam covers a different body of knowledge than the diagnostic exam. A separate speaker will address those unique aspects of the nuclear exam, and how preparing for a second specialty differs from the first. Medical physicists who recently completed each ABR exam portion will share their experiences, insights, and preparation methods to help attendees best prepare for the challenges of each part of the ABR exam. In accordance with ABR exam security policy, no recalls or exam questions will be discussed. Learning Objectives: How to prepare for Part 1 of the ABR exam by determining the scope of basic medical physics study material and related problem solving/calculations How to prepare for Part 2 of the ABR exam by understanding diagnostic and/or nuclear

WE-D-213-01: Preparing for Part 1 of the ABR Diagnostic Physics Exam

Energy Technology Data Exchange (ETDEWEB)

Simiele, S. [University of Wisconsin-Madison (United States)

2015-06-15

Adequate, efficient preparation for the ABR Diagnostic and Nuclear Medical Physics exams is key to successfully obtain ABR professional certification. Each part of the ABR exam presents its own challenges: Part I: Determine the scope of basic medical physics study material, efficiently review this material, and solve related written questions/problems. Part II: Understand imaging principles, modalities, and systems, including image acquisition, processing, and display. Understand the relationship between imaging techniques, image quality, patient dose and safety, and solve related written questions/problems. Part III: Gain crucial, practical, clinical medical physics experience. Effectively communicate and explain the practice, performance, and significance of all aspects of clinical medical physics. All three parts of the ABR exam require specific skill sets and preparation: mastery of basic physics and imaging principles; written problem solving often involving rapid calculation; responding clearly and succinctly to oral questions about the practice, methods, and significance of clinical medical physics. This symposium focuses on the preparation and skill sets necessary for each part of the ABR exam. Although there is some overlap, the nuclear exam covers a different body of knowledge than the diagnostic exam. A separate speaker will address those aspects that are unique to the nuclear exam. Medical physicists who have recently completed each of part of the ABR exam will share their experiences, insights, and preparation methods to help attendees best prepare for the challenges of each part of the ABR exam. In accordance with ABR exam security policy, no recalls or exam questions will be discussed. Learning Objectives: How to prepare for Part 1 of the ABR exam by determining the scope of basic medical physics study material and related problem solving/calculations How to Prepare for Part 2 of the ABR exam by understanding diagnostic and/or nuclear imaging physics

WE-D-213-03: Preparing for Part 3 of the ABR Diagnostic Physics Exam

Energy Technology Data Exchange (ETDEWEB)

Bevins, N. [Henry Ford Health System, Detroit, MI (United States)

2015-06-15

Adequate, efficient preparation for the ABR Diagnostic and Nuclear Medical Physics exams is key to successfully obtain ABR professional certification. Each part of the ABR exam presents its own challenges: Part I: Determine the scope of basic medical physics study material, efficiently review this material, and solve related written questions/problems. Part II: Understand imaging principles, modalities, and systems, including image acquisition, processing, and display. Understand the relationship between imaging techniques, image quality, patient dose and safety, and solve related written questions/problems. Part III: Gain crucial, practical, clinical medical physics experience. Effectively communicate and explain the practice, performance, and significance of all aspects of clinical medical physics. All three parts of the ABR exam require specific skill sets and preparation: mastery of basic physics and imaging principles; written problem solving often involving rapid calculation; responding clearly and succinctly to oral questions about the practice, methods, and significance of clinical medical physics. This symposium focuses on the preparation and skill sets necessary for each part of the ABR exam. Although there is some overlap, the nuclear exam covers a different body of knowledge than the diagnostic exam. A separate speaker will address those aspects that are unique to the nuclear exam. Medical physicists who have recently completed each of part of the ABR exam will share their experiences, insights, and preparation methods to help attendees best prepare for the challenges of each part of the ABR exam. In accordance with ABR exam security policy, no recalls or exam questions will be discussed. Learning Objectives: How to prepare for Part 1 of the ABR exam by determining the scope of basic medical physics study material and related problem solving/calculations How to Prepare for Part 2 of the ABR exam by understanding diagnostic and/or nuclear imaging physics

MO-F-204-00: Preparing for the ABR Diagnostic and Nuclear Medical Physics Exams

International Nuclear Information System (INIS)

2016-01-01

Adequate, efficient preparation for the ABR Diagnostic and Nuclear Medical Physics exams is key to successfully obtain ABR certification. Each part of the ABR exam presents its own challenges: Part I: Determine the scope of basic medical physics study material, efficiently review this material, and solve related written questions/problems. Part II: Understand imaging principles, modalities, and systems, including image acquisition, processing, and display. Understand the relationship between imaging techniques, image quality, patient dose and safety, and solve related written questions/problems. Part III: Gain crucial, practical, clinical medical physics experience. Effectively communicate and explain the practice, performance, and significance of all aspects of clinical medical physics. All parts of the ABR exam require specific skill sets and preparation: mastery of basic physics and imaging principles; written problem solving often involving rapid calculation; responding clearly and succinctly to oral questions about the practice, methods, and significance of clinical medical physics. This symposium focuses on the preparation necessary for each part of the ABR exam. Although there is some overlap, the nuclear exam covers a different body of knowledge than the diagnostic exam. A separate speaker will address those unique aspects of the nuclear exam, and how preparing for a second specialty differs from the first. Medical physicists who recently completed each ABR exam portion will share their experiences, insights, and preparation methods to help attendees best prepare for the challenges of each part of the ABR exam. In accordance with ABR exam security policy, no recalls or exam questions will be discussed. Learning Objectives: How to prepare for Part 1 of the ABR exam by determining the scope of basic medical physics study material and related problem solving/calculations How to prepare for Part 2 of the ABR exam by understanding diagnostic and/or nuclear

MO-F-204-03: Preparing for Part 3 of the ABR Diagnostic Physics Exam

International Nuclear Information System (INIS)

Zambelli, J.

2016-01-01

Adequate, efficient preparation for the ABR Diagnostic and Nuclear Medical Physics exams is key to successfully obtain ABR certification. Each part of the ABR exam presents its own challenges: Part I: Determine the scope of basic medical physics study material, efficiently review this material, and solve related written questions/problems. Part II: Understand imaging principles, modalities, and systems, including image acquisition, processing, and display. Understand the relationship between imaging techniques, image quality, patient dose and safety, and solve related written questions/problems. Part III: Gain crucial, practical, clinical medical physics experience. Effectively communicate and explain the practice, performance, and significance of all aspects of clinical medical physics. All parts of the ABR exam require specific skill sets and preparation: mastery of basic physics and imaging principles; written problem solving often involving rapid calculation; responding clearly and succinctly to oral questions about the practice, methods, and significance of clinical medical physics. This symposium focuses on the preparation necessary for each part of the ABR exam. Although there is some overlap, the nuclear exam covers a different body of knowledge than the diagnostic exam. A separate speaker will address those unique aspects of the nuclear exam, and how preparing for a second specialty differs from the first. Medical physicists who recently completed each ABR exam portion will share their experiences, insights, and preparation methods to help attendees best prepare for the challenges of each part of the ABR exam. In accordance with ABR exam security policy, no recalls or exam questions will be discussed. Learning Objectives: How to prepare for Part 1 of the ABR exam by determining the scope of basic medical physics study material and related problem solving/calculations How to prepare for Part 2 of the ABR exam by understanding diagnostic and/or nuclear

WE-D-213-02: Preparing for Part 2 of the ABR Diagnostic Physics Exam

International Nuclear Information System (INIS)

Zambelli, J.

2015-01-01

Adequate, efficient preparation for the ABR Diagnostic and Nuclear Medical Physics exams is key to successfully obtain ABR professional certification. Each part of the ABR exam presents its own challenges: Part I: Determine the scope of basic medical physics study material, efficiently review this material, and solve related written questions/problems. Part II: Understand imaging principles, modalities, and systems, including image acquisition, processing, and display. Understand the relationship between imaging techniques, image quality, patient dose and safety, and solve related written questions/problems. Part III: Gain crucial, practical, clinical medical physics experience. Effectively communicate and explain the practice, performance, and significance of all aspects of clinical medical physics. All three parts of the ABR exam require specific skill sets and preparation: mastery of basic physics and imaging principles; written problem solving often involving rapid calculation; responding clearly and succinctly to oral questions about the practice, methods, and significance of clinical medical physics. This symposium focuses on the preparation and skill sets necessary for each part of the ABR exam. Although there is some overlap, the nuclear exam covers a different body of knowledge than the diagnostic exam. A separate speaker will address those aspects that are unique to the nuclear exam. Medical physicists who have recently completed each of part of the ABR exam will share their experiences, insights, and preparation methods to help attendees best prepare for the challenges of each part of the ABR exam. In accordance with ABR exam security policy, no recalls or exam questions will be discussed. Learning Objectives: How to prepare for Part 1 of the ABR exam by determining the scope of basic medical physics study material and related problem solving/calculations How to Prepare for Part 2 of the ABR exam by understanding diagnostic and/or nuclear imaging physics

WE-D-213-00: Preparing for the ABR Diagnostic and Nuclear Medicine Physics Exams

International Nuclear Information System (INIS)

2015-01-01

Adequate, efficient preparation for the ABR Diagnostic and Nuclear Medical Physics exams is key to successfully obtain ABR professional certification. Each part of the ABR exam presents its own challenges: Part I: Determine the scope of basic medical physics study material, efficiently review this material, and solve related written questions/problems. Part II: Understand imaging principles, modalities, and systems, including image acquisition, processing, and display. Understand the relationship between imaging techniques, image quality, patient dose and safety, and solve related written questions/problems. Part III: Gain crucial, practical, clinical medical physics experience. Effectively communicate and explain the practice, performance, and significance of all aspects of clinical medical physics. All three parts of the ABR exam require specific skill sets and preparation: mastery of basic physics and imaging principles; written problem solving often involving rapid calculation; responding clearly and succinctly to oral questions about the practice, methods, and significance of clinical medical physics. This symposium focuses on the preparation and skill sets necessary for each part of the ABR exam. Although there is some overlap, the nuclear exam covers a different body of knowledge than the diagnostic exam. A separate speaker will address those aspects that are unique to the nuclear exam. Medical physicists who have recently completed each of part of the ABR exam will share their experiences, insights, and preparation methods to help attendees best prepare for the challenges of each part of the ABR exam. In accordance with ABR exam security policy, no recalls or exam questions will be discussed. Learning Objectives: How to prepare for Part 1 of the ABR exam by determining the scope of basic medical physics study material and related problem solving/calculations How to Prepare for Part 2 of the ABR exam by understanding diagnostic and/or nuclear imaging physics

MCSA Windows Server 2012 R2 administration study guide exam 70-411

CERN Document Server

Panek, William

2015-01-01

Complete exam coverage, hands-on practice, and interactive studytools for the MCSA: Administering Windows Server 2012 R2 exam70-411 MCSA: Windows Server 2012 R2 Administration Study Guide: Exam70-411 provides comprehensive preparation for exam 70-411:Administering Windows Server 2012 R2. With full coverage of allexam domains, this guide contains everything you need to know to befully prepared on test day. Real-world scenarios illustrate thepractical applications of the lessons, and hands-on exercises allowyou to test yourself against everyday tasks. You get access to aninteractive practice te

Application of an entry-exit tariff model to the gas transport system in Spain

International Nuclear Information System (INIS)

Alonso, Alejandro; Serrano, Miguel; Olmos, Luis

2010-01-01

Under an entry-exit gas tariff system, reservation of capacity is split into entry capacity, to transport gas from the injection points to a virtual balancing point, and exit capacity, to transport gas from the balancing point to the exit points in the system. Entry-exit tariff for gas transport systems have been recommended by the 3rd EU Energy Package, since they are cost reflective, facilitate gas trade and can provide signals for the location of gas injections or off-takes. The advisability of applying an entry-exit tariff system is discussed in this paper. Apart from this, authors propose an entry-exit tariff model and apply it to compute charges for the Spanish gas transport system in 2009. Results produced by the model are presented as coefficients which should multiply the current postal transport tariff. The paper concludes that entry-exit tariffs would be useful location signals which would result in a better use of the gas transport system in Spain. In those cases where demand exceeds available capacity, as it occurs at the congested connection with France, entry-exit tariffs could be supplemented by capacity charges at entry points resulting from auctions. (author)

The Management Skills of Exam Process for Undergraduate Students

Science.gov (United States)

Cetin, Filiz; Cetin, Saban

2017-01-01

This study aims to identify to what degree undergraduate students are able to manage the exam process to be successful in exams. The study group of the research, which utilizes the survey model, consists of 350 students in total, 185 female and 165 male, attending 4 different teaching programs in Faculty of Education, Gazi University. "The…

The use of the exit interview to reduce turnover amongst healthcare professionals.

Science.gov (United States)

Flint, Anndrea; Webster, Joan

2011-01-19

Exit interviews are widely used in healthcare organisations to identify reasons for staff attrition, yet their usefulness in limiting turnover is unclear. To determine the effectiveness of various exit interview strategies in decreasing turnover rates amongst healthcare professionals. We used a comprehensive search strategy including an electronic search of the following databases: DARE, CENTRAL, MEDLINE, EMBASE, CINAHL, PsycINFO, ERIC (search date: 7 September 2010) and EPOC Specialised Register (search date: 30 September 2009). We also screened the reference lists of included studies and relevant reviews. Randomised controlled trials, controlled clinical trials, controlled before and after studies and interrupted time series studies comparing turnover rates between healthcare professionals who had undergone one form of exit interview with another form of exit interview or with no interview. Two review authors independently assessed trial quality and extracted data. The search identified 1560 citations of which we considered 19 potentially relevant. The two authors independently reviewed the abstracts of these studies and retrieved the full texts of eight studies. We excluded all eight following independent assessment. They were either interviews, commentaries on how to do an exit interview or descriptive studies about reasons for leaving. We found no trials that matched our inclusion criteria. Evidence about the effectiveness of exit interviews to reduce turnover is currently not available. However, exit interviews may provide useful information about the work environment which, in turn, may be useful in the development of interventions to reduce turnover.

Exploring the Relationship of Exit Flow and Jam Density in Panic Scenarios Using Animal Dynamics

NARCIS (Netherlands)

Sobhani, A.; Sarvi, M.; Duives, D.C.; Ejtemai, O.; Aghabayk, K.; Hoogendoorn, S.P.

2014-01-01

There are few studies investigating crowd dynamics in panic situations. They used measures such as exit flow rate to explore the exit performance in evacuation scenarios. However, there is limited research exploring the relationship of exit flow rate and density behind the exit for panic scenarios.

Effective dose and cancer risk in PET/CT exams

International Nuclear Information System (INIS)

Pinto, Gabriella M.; Sa, Lidia Vasconcellos de

2013-01-01

Due to the use of radiopharmaceutical positron-emitting in PET exam and realization of tomography by x-ray transmission in CT examination, an increase of dose with hybrid PET/CT technology is expected. However, differences of doses have been reported in many countries for the same type of procedure. It is expected that the dose is an influent parameter to standardize the protocols of PET/CT. This study aimed to estimate the effective doses and absorbed in 65 patients submitted to oncological Protocol in a nuclear medicine clinic in Rio de Janeiro, considering the risk of induction of cancer from the scan. The CT exam-related doses were estimated with a simulator of PMMA and simulated on the lmPACT resistance, which for program effective dose, were considered the weight factors of the lCRP 103. The PET exam doses were estimated by multiplying the activity administered to the patient with the ICRP dose 80 factors. The radiological risk for cancer incidence were estimated according to the ICRP 103. The results showed that the effective dose from CT exam is responsible for 70% of the effective total in a PET/CT scan. values of effective dose for the PET/CT exam reached average values of up to 25 mSv leading to a risk of 2, 57 x 10 -4 . Considering that in staging of oncological diseases at least four tests are performed annually, the total risk comes to 1,03x 10 -3

Validity and reliability of The Johns Hopkins Adapted Cognitive Exam for critically ill patients.

Science.gov (United States)

Lewin, John J; LeDroux, Shannon N; Shermock, Kenneth M; Thompson, Carol B; Goodwin, Haley E; Mirski, Erin A; Gill, Randeep S; Mirski, Marek A

2012-01-01

To validate The Johns Hopkins Adapted Cognitive Exam designed to assess and quantify cognition in critically ill patients. Prospective cohort study. Neurosciences, surgical, and medical intensive care units at The Johns Hopkins Hospital. One hundred six adult critically ill patients. One expert neurologic assessment and four measurements of the Adapted Cognitive Exam (all patients). Four measurements of the Folstein Mini-Mental State Examination in nonintubated patients only. Adapted Cognitive Exam and Mini-Mental State Examination were performed by 76 different raters. One hundred six patients were assessed, 46 intubated and 60 nonintubated, resulting in 424 Adapted Cognitive Exam and 240 Mini-Mental State Examination measurements. Criterion validity was assessed by comparing Adapted Cognitive Exam with a neurointensivist's assessment of cognitive status (ρ = 0.83, p validity was assessed by comparing Adapted Cognitive Exam with Mini-Mental State Examination in nonintubated patients (ρ = 0.81, p validity was assessed by surveying raters who used both the Adapted Cognitive Exam and Mini-Mental State Examination and indicated the Adapted Cognitive Exam was an accurate reflection of the patient's cognitive status, more sensitive a marker of cognition than the Mini-Mental State Examination, and easy to use. The Adapted Cognitive Exam demonstrated excellent interrater reliability (intraclass correlation coefficient = 0.997; 95% confidence interval 0.997-0.998) and interitem reliability of each of the five subscales of the Adapted Cognitive Exam and Mini-Mental State Examination (Cronbach's α: range for Adapted Cognitive Exam = 0.83-0.88; range for Mini-Mental State Examination = 0.72-0.81). The Adapted Cognitive Exam is the first valid and reliable examination for the assessment and quantification of cognition in critically ill patients. It provides a useful, objective tool that can be used by any member of the interdisciplinary critical care team to support

CCNA Cisco Certified Network Associate Study Guide: Exam 640-801

CERN Document Server

Lammle, Todd

2006-01-01

Here's the book you need to prepare for Cisco's revised CCNA exam, 640-801. This new edition of the best-selling CCNA Study Guide provides in-depth coverage of every CCNA exam objective, practical information on Cisco internetworking solutions and hundreds of challenging review questions.

CompTIA A+ complete study guide exams 220-801 and 220-802

CERN Document Server

Docter, Quentin; Skandier, Toby

2012-01-01

CompTIA Authorized, fully updated Study Guide for the leading IT certification: CompTIA A+ CompTIA A+ is the de facto certification for IT technicians. Some vendors even require employees to achieve certification as part of their job training. This book prepares you for both required exams: 220-801 and 220-802. Totally updated to cover the 2012 exams, this popular prep guide covers all the exam objectives. Readers will also have access to additional study tools, including the Sybex Test Engine with bonus practice exams, electronic flashcards, and a glossary of important terms in searchable PD

Analysis of Low Appropriateness Score Exam Trends in Decision Support-based Radiology Order Entry System.

Science.gov (United States)

Gupta, Supriya; Klein, Kandace; Singh, Anand H; Thrall, James H

2017-05-01

Awareness of imaging utilization increased after implementation of Radiology Order Entry with decision support systems (ROE-DS). Our hypothesis is few exams with low Clinical Appropriateness Score (CAS) on ROE-DS are performed. Clinical indications of exams with CAS less than 3 (9-point scale) were re-reviewed and reports analyzed. Structured Query Language-based query retrieved exams with CAS less than 3 in ROE-DS from January 2007 to December 2011. Reasons provided by physicians for ordering these exams and reports of exams performed were analyzed. For each indication, number of exams ordered and performed was calculated. Statistical significance was assessed using Student's t test and χ 2 analysis (P < .05). From 445,984 exams, 12,615 exams (2.8%) had CAS less than 3, and 7,956 exams (63%) were performed. Reasons for ordering of 12,615 low CAS exams were as follows: Requests by physician specialists without further explanation (4,516 = 35.8%), notation of special clinical circumstances (2,877 = 22.8%), requests by nonphysician staff without further explanation (1,383 = 10.9%), absence of suspected finding on previous modality (1,099 = 8.7%), patient preference (737 = 5.8%), and requests based on radiologists' recommendations (706 = 5.6%). Difference between male and female (male < female) preferences for low CAS exams was statistically significant (P < .01). Imaging outcome was highest for extremity MRI cases (66.7%; P < .01). Less than 3% of exams ordered had low CAS and about two-thirds of these were performed. Most common indication for ordering these exams was physician specialist request based on opinion of medical necessity without specification. Extremity MRI constituted the highest positive findings for low CAS exams performed. Published by Elsevier Inc.

International Competition and Small-Firm Exit in US Manufacturing

OpenAIRE

Robert M Feinberg

2013-01-01

This study analyzes both the determinants of small firm exit rates in US manufacturing over the 1989–2004 period, especially the reaction of domestic firms to the nature of foreign competition as measured by industry-specific real exchange rate movements (interacted with import penetration by industry). These international pressures seem to lead to increased rates of smallest-firm exit in manufacturing, though the magnitudes of these effects are smaller than sometimes discussed. However, high...

Auricular Acupuncture for Exam Anxiety in Medical Students-A Randomized Crossover Investigation.

Directory of Open Access Journals (Sweden)

Catharina Klausenitz

Full Text Available Auricular acupuncture (AA is effective in the treatment of preoperative anxiety. The aim was to investigate whether AA can reduce exam anxiety as compared to placebo and no intervention. Forty-four medical students were randomized to receive AA, placebo, or no intervention in a crossover manner and subsequently completed three comparable oral anatomy exams with an interval of 1 month between the exams/interventions. AA was applied using indwelling fixed needles bilaterally at points MA-IC1, MA-TF1, MA-SC, MA-AT1 and MA-TG one day prior to each exam. Placebo needles were used as control. Levels of anxiety were measured using a visual analogue scale before and after each intervention as well as before each exam. Additional measures included the State-Trait-Anxiety Inventory, duration of sleep at night, blood pressure, heart rate and the extent of participant blinding. All included participants finished the study. Anxiety levels were reduced after AA and placebo intervention compared to baseline and the no intervention condition (p < 0.003. AA was better at reducing anxiety than placebo in the evening before the exam (p = 0.018. Participants were able to distinguish between AA and placebo intervention. Both AA and placebo interventions reduced exam anxiety in medical students. The superiority of AA over placebo may be due to insufficient blinding of participants.

Improved social force model based on exit selection for microscopic pedestrian simulation in subway station

Institute of Scientific and Technical Information of China (English)

郑勋; 李海鹰; 孟令云; 许心越; 陈旭

2015-01-01

An improved social force model based on exit selection is proposed to simulate pedestrians’ microscopic behaviors in subway station. The modification lies in considering three factors of spatial distance, occupant density and exit width. In addition, the problem of pedestrians selecting exit frequently is solved as follows: not changing to other exits in the affected area of one exit, using the probability of remaining preceding exit and invoking function of exit selection after several simulation steps. Pedestrians in subway station have some special characteristics, such as explicit destinations, different familiarities with subway station. Finally, Beijing Zoo Subway Station is taken as an example and the feasibility of the model results is verified through the comparison of the actual data and simulation data. The simulation results show that the improved model can depict the microscopic behaviors of pedestrians in subway station.

Introducing Computer-Based Testing in High-Stakes Exams in Higher Education: Results of a Field Experiment.

Science.gov (United States)

Boevé, Anja J; Meijer, Rob R; Albers, Casper J; Beetsma, Yta; Bosker, Roel J

2015-01-01

The introduction of computer-based testing in high-stakes examining in higher education is developing rather slowly due to institutional barriers (the need of extra facilities, ensuring test security) and teacher and student acceptance. From the existing literature it is unclear whether computer-based exams will result in similar results as paper-based exams and whether student acceptance can change as a result of administering computer-based exams. In this study, we compared results from a computer-based and paper-based exam in a sample of psychology students and found no differences in total scores across the two modes. Furthermore, we investigated student acceptance and change in acceptance of computer-based examining. After taking the computer-based exam, fifty percent of the students preferred paper-and-pencil exams over computer-based exams and about a quarter preferred a computer-based exam. We conclude that computer-based exam total scores are similar as paper-based exam scores, but that for the acceptance of high-stakes computer-based exams it is important that students practice and get familiar with this new mode of test administration.

CCNA routing and switching review guide exams 100-101, 200-101, and 200-120

CERN Document Server

Lammle, Todd

2013-01-01

Todd Lammle's focused, concise review guide, updated for the latest CCNA exams CCNA is one of the most sought after certifications for IT professionals. If you're preparing for the CCNA Routing and Switching certification, this Sybex review guide offers the best quick review available. Organized by exam objective, it's the perfect supplement to other learning tools, including the Sybex CCNA Routing and Switching Study Guide (ISBN: 9781118749616). All exam topics from exams 100-101, 200-101, and 200-120 are thoroughly covered, and additional study materials including bonus exams, electronic f

Does Business Cycle Have an Impact on Entrants and Exits?

Directory of Open Access Journals (Sweden)

Nikolay Sterev

2017-03-01

Full Text Available Purpose: The role of entrants and exits has enlarged indisputably over recent years. The basic explanation is connected to the deepening of innovation's influence on industrial growth. Furthermore, new businesses have to be more effective, and based on products, technological or organizational innovations, and exits have to be ineffective (respectively unprofitable, based on denoted products or technology. Design/methodology/approach: According to the above-mentioned prerequisites, policymakers need to manage the role (respectively the impact that entrants (new start-up companies and exits play in industrial growth. Nevertheless, this impact is not a cornerstone of the Bulgarian National Strategy, or the Europe 2020 Strategy. Findings: The paper tries to answer the following two questions: 1 Do new start-up companies and exits have any role and influence on economic growth in Bulgaria? and 2 Does the role (respectively the impact of entrants and exits in industrial growth change according to economic cycle? Research limitations/implications: In addition, according to the Lisbon Strategy, as well as the European Union's (EU Strategy 2020, the current economic policy supports entrepreneurship and innovations. Thus, the establishment of innovative companies, as well as the development of innovative, incumbent business are core issues of EU economic policy for the past decade. Originality/value: The paper builds on the industrial dynamic methodology and on the understanding of how business decisions (entrepreneurship, innovations, and R&D on micro level correspond to macro level (GDP growth and innovation policy.

The comparison of exit-site care with normal saline and povidone-iodine in preventing exit-site infection and peritonitis in children on chronic peritoneal dialysis treatment

Directory of Open Access Journals (Sweden)

Onder Yavascan

2011-01-01

Full Text Available Peritonitis and catheter exit- site infections (ESI are important causes of hospitalization and catheter loss in patients undergoing chronic peritoneal dialysis (CPD. The frequency of infection can be reduced by scrupulous exit- site care with or without topical antiseptics. There are no studies showing any benefit in the use of povidone-iodine or normal saline for care of exit- sites in long- term CPD patients. In this study, we aimed to determine the potential effectiveness of the application of povidone-iodine or normal saline at the catheter exit- site in preventing ESI and peritonitis in children on CPD. A total of 98 patients treated with either povidone-iodine or normal saline were included in this study. Group I (34 patients used povidone-iodine and group II (64 patients simply cleansed the exit- site with normal saline (0.9% NaCl. Dressings were changed 2 to 3 times in a week. The total cumulative follow- up time was 3233 patient- months. ESIs occurred in 10 (29.4% of 34 patients using povidone-iodine and in 10 (15.6% of 64 patients using normal saline. The frequency of ESI was significantly high in group I (povidone-iodine patients. The mean rate of ESI was 1 episode/60.8 patient- months for group I versus 1 episode/144 patient- months for group II (P 0.05. In conclusion, exit- site care with normal saline is an effective strategy in reducing the incidence of ESI in children on CPD. It can thus significantly reduce morbidity, catheter loss, and the need to transfer patients on peritoneal dialysis to hemodialysis.

Influence of drill helical direction on exit damage development in drilling carbon fiber reinforced plastic

Science.gov (United States)

Bai, Y.; Jia, Z. Y.; Wang, F. J.; Fu, R.; Guo, H. B.; Cheng, D.; Zhang, B. Y.

2017-06-01

Drilling is inevitable for CFRP components’ assembling process in the aviation industry. The exit damage frequently occurs and affects the load carrying capacity of components. Consequently, it is of great urgency to enhance drilling exit quality on CFRP components. The article aims to guide the reasonable choice of drill helical direction and effectively reduce exit damage. Exit observation experiments are carried out with left-hand helical, right-hand helical and straight one-shot drill drilling T800S CFRP laminates separately. The development rules of exit damage and delamination factor curves are obtained. Combined with loading conditions and fracture modes of push-out burrs, and thrust force curves, the influence of drill helical direction on exit damage development is derived. It is found that the main fracture modes for left-hand helical, right-hand helical, and straight one-shot drill are mode I, extrusive fracture, mode III respectively. Among them, mode III has the least effect on exit damage development. Meanwhile, the changing rate of thrust force is relative slow for right-hand helical and straight one-shot drill in the thrust force increasing phase of stage II, which is disadvantaged for exit damage development. Therefore, straight one-shot drill’s exit quality is the best.

The Red Effect, Anxiety, and Exam Performance: A Multistudy Examination

Science.gov (United States)

Smajic, Adnan; Merritt, Stephanie; Banister, Christina; Blinebry, Amanda

2014-01-01

Laboratory studies have established a negative relationship between the color red and academic performance. This research examined whether this effect would generalize to classroom performance and whether anxiety and negative affect might mediate the effect. In two studies, students taking classroom exams were randomly assigned an exam color. We…

The use of low-osmolar water-soluble contrast in videofluoroscopic swallowing exams.

Science.gov (United States)

Harris, Julie A; Bartelt, Detlef; Campion, Molly; Gayler, Bob W; Jones, Bronwyn; Hayes, Andrea; Haynos, Judith; Herbick, Seanne; Kling, Therese; Lingaraj, Arpana; Singer, Michele; Starmer, Heather; Smith, Christine; Webster, Kim

2013-12-01

The selection of the contrast agent used during fluoroscopic exams is an important clinical decision. The purpose of this article is to document the usage of a nonionic, water-soluble contrast (iohexol) and barium contrast in adult patients undergoing fluoroscopic exams of the pharynx and/or esophagus and provide clinical indications for the use of each. For 1 year, data were collected on the use of iohexol and barium during fluoroscopic exams. The contrast agent used was selected by the speech language pathologist (SLP) or the radiologist based on the exam's indications. A total of 1,978 fluoroscopic exams were completed in the 12-month period of documentation. Of these exams, 60.6 % were completed for medical reasons and 39.4 % for surgical reasons. Fifty-five percent of the exams were performed jointly by a SLP and a radiologist and 45 % were performed by a radiologist alone. Aspiration was present in 22 % of the exams, vestibular penetration occurred in 38 %, extraluminal leakage of contrast was observed in 4.6 %, and both aspiration and leakage were seen in 1 % of the exams. In cases with aspiration, iohexol was used alone in 8 %, iohexol and barium were both used in 45 %, and barium was used alone in 47 %. In cases with extraluminal leakage, iohexol was used alone in 58 %, iohexol and barium were both used in 31 %, and barium was used alone in 11 %. No adverse effects were seen with the use of iohexol. When barium was used in cases of aspiration and extraluminal leakage, the amount of aspirated barium was small and the extraluminal barium in the instances of leakage was small. Iohexol is a useful screening contrast agent and can safely provide information, and its use reduces the risk of aspiration and the chance of leakage of large amounts of barium.

Introducing Computer-Based Testing in High-Stakes Exams in Higher Education: Results of a Field Experiment

Science.gov (United States)

Boevé, Anja J.; Meijer, Rob R.; Albers, Casper J.; Beetsma, Yta; Bosker, Roel J.

2015-01-01

The introduction of computer-based testing in high-stakes examining in higher education is developing rather slowly due to institutional barriers (the need of extra facilities, ensuring test security) and teacher and student acceptance. From the existing literature it is unclear whether computer-based exams will result in similar results as paper-based exams and whether student acceptance can change as a result of administering computer-based exams. In this study, we compared results from a computer-based and paper-based exam in a sample of psychology students and found no differences in total scores across the two modes. Furthermore, we investigated student acceptance and change in acceptance of computer-based examining. After taking the computer-based exam, fifty percent of the students preferred paper-and-pencil exams over computer-based exams and about a quarter preferred a computer-based exam. We conclude that computer-based exam total scores are similar as paper-based exam scores, but that for the acceptance of high-stakes computer-based exams it is important that students practice and get familiar with this new mode of test administration. PMID:26641632

Prototype of a computer system for managing data and video colonoscopy exams

Directory of Open Access Journals (Sweden)

Renato Bobsin Machado

2012-03-01

Full Text Available OBJECTIVE: Develop a prototype using computer resources to optimize the management process of clinical information and video colonoscopy exams. MATERIALS AND METHODS: Through meetings with medical and computer experts, the following requirements were defined: management of information about medical professionals, patients and exams; video and image captured by video colonoscopes during the exam, and the availability of these videos and images on the Web for further analysis. The technologies used were Java, Flex, JBoss, Red5, JBoss SEAM, MySQL and Flamingo. RESULTS AND DISCUSSION: The prototype contributed to the area of colonocospy by providing resources to maintain the patients' history, tests and images from video colonoscopies. The web-based application allows greater flexibility to physicians and specialists. The resources for remote analysis of data and tests can help doctors and patients in the examination and diagnosis. CONCLUSION: The implemented prototype has contributed to improve colonoscopy-related processes. Future activities include the prototype deployment in the Service of Coloproctology and the utilization of this model to allow real-time monitoring of these exams and knowledge extraction from such structured database using artificial intelligence.OBJETIVO: Desenvolver um protótipo por meio de recursos computacionais para a otimização de processos de gerenciamento de informações clínicas e de exames de videocolonoscopia. MATERIAIS E MÉTODOS: Por meio de reuniões com especialistas médicos e computacionais, definiram-se os seguintes requisitos: gestão de informações sobre profissionais médicos, pacientes e exames complementares; aquisição dos vídeos e captura de imagens a partir do videocolonoscópio durante a realização desse exame, e a disponibilidade por meio da Web para análise posterior dessas imagens. As tecnologias aplicadas foram: Java, Flex, JBOSS, Red5, JBOSS SEAM, MySQL e Flamingo. RESULTADOS E

Epigenetics as a First Exit Problem

Science.gov (United States)

Aurell, E.; Sneppen, K.

2002-01-01

We develop a framework to discuss the stability of epigenetic states as first exit problems in dynamical systems with noise. We consider in particular the stability of the lysogenic state of the λ prophage. The formalism defines a quantitative measure of robustness of inherited states.

Evaluation of six TPS algorithms in computing entrance and exit doses

Science.gov (United States)

Metwaly, Mohamed; Glegg, Martin; Baggarley, Shaun P.; Elliott, Alex

2014-01-01

Entrance and exit doses are commonly measured in in vivo dosimetry for comparison with expected values, usually generated by the treatment planning system (TPS), to verify accuracy of treatment delivery. This report aims to evaluate the accuracy of six TPS algorithms in computing entrance and exit doses for a 6 MV beam. The algorithms tested were: pencil beam convolution (Eclipse PBC), analytical anisotropic algorithm (Eclipse AAA), AcurosXB (Eclipse AXB), FFT convolution (XiO Convolution), multigrid superposition (XiO Superposition), and Monte Carlo photon (Monaco MC). Measurements with ionization chamber (IC) and diode detector in water phantoms were used as a reference. Comparisons were done in terms of central axis point dose, 1D relative profiles, and 2D absolute gamma analysis. Entrance doses computed by all TPS algorithms agreed to within 2% of the measured values. Exit doses computed by XiO Convolution, XiO Superposition, Eclipse AXB, and Monaco MC agreed with the IC measured doses to within 2%‐3%. Meanwhile, Eclipse PBC and Eclipse AAA computed exit doses were higher than the IC measured doses by up to 5.3% and 4.8%, respectively. Both algorithms assume that full backscatter exists even at the exit level, leading to an overestimation of exit doses. Despite good agreements at the central axis for Eclipse AXB and Monaco MC, 1D relative comparisons showed profiles mismatched at depths beyond 11.5 cm. Overall, the 2D absolute gamma (3%/3 mm) pass rates were better for Monaco MC, while Eclipse AXB failed mostly at the outer 20% of the field area. The findings of this study serve as a useful baseline for the implementation of entrance and exit in vivo dosimetry in clinical departments utilizing any of these six common TPS algorithms for reference comparison. PACS numbers: 87.55.‐x, 87.55.D‐, 87.55.N‐, 87.53.Bn PMID:24892349

After exit: Academic achievement patterns of former English language learners.

Directory of Open Access Journals (Sweden)

Ester J. de Jong

2004-09-01

Full Text Available With few exceptions, accountability systems for programs for English language learners (ELLs have focused on the achievement patterns of ELLs who are still considered “limited English proficient” and program evaluations have been unable to answer the question whether ELLs actually catch up with English proficient peers after attending a bilingual or English as a Second Language (ESL program. Disaggregating data for former ELLs can therefore provide important information for long-term district and program accountability. The study was concerned with the achievement patterns in English language arts, Math, and Science of former ELLs who attended a bilingual and a English as a Second Language (ESL program. It also explored whether length of program participation and grade level exited played a significant role in predicting academic achievement patterns for these exited students. Results indicate that 4th grade students more closely paralleled non- ELL students’ achievement patterns than 8th grade students, particularly for the BE students. While length of program participation is not a significant predictor of former ELLs’ academic success, exit grade does emerge as an important variable to take into consideration in setting exit guidelines.

FormScanner: Open-Source Solution for Grading Multiple-Choice Exams

Science.gov (United States)

Young, Chadwick; Lo, Glenn; Young, Kaisa; Borsetta, Alberto

2016-01-01

The multiple-choice exam remains a staple for many introductory physics courses. In the past, people have graded these by hand or even flaming needles. Today, one usually grades the exams with a form scanner that utilizes optical mark recognition (OMR). Several companies provide these scanners and particular forms, such as the eponymous…

Commitment to Study as a Technique to Improve Exam Performance.

Science.gov (United States)

Leeming, Frank C.

1997-01-01

Reports on a technique that could increase study time by reducing procrastination. Randomly selected college students (N=197) made written commitments to study for an exam. Students in the commitment condition reported significantly more study time than did students in a control group; they also performed significantly better on the exam. (RJM)

Automating Exams for a Statistics Course: II. A Case Study.

Science.gov (United States)

Michener, R. Dean; And Others

A specific application of the process of automating exams for any introductory statistics course is described. The process of automating exams was accomplished by using the Statistical Test Item Collection System (STICS). This system was first used to select a set of questions based on course requirements established in advance; afterward, STICS…

Drink Specials and the Intoxication Levels of Patrons Exiting College Bars

Science.gov (United States)

Thombs, Dennis L.; Dodd, Virginia; Porkorny, Steven B.; Omli, Morrow R.; O'Mara, Ryan; Webb, Monica C.; Lacaci, Diana M.; Werch, Chad

2008-01-01

Objectives: To determine whether drink specials independently increase patrons' risk of achieving a high level of intoxication upon exiting drinking establishments. Methods: In a campus community, data were collected from exiting patrons (N=291) via sidewalk interviews and breath tests on 6 nights of 2 consecutive semesters. Results: A…

Multiple-Choice Exams: An Obstacle for Higher-Level Thinking in Introductory Science Classes

Science.gov (United States)

Stanger-Hall, Kathrin F.

2012-01-01

Learning science requires higher-level (critical) thinking skills that need to be practiced in science classes. This study tested the effect of exam format on critical-thinking skills. Multiple-choice (MC) testing is common in introductory science courses, and students in these classes tend to associate memorization with MC questions and may not see the need to modify their study strategies for critical thinking, because the MC exam format has not changed. To test the effect of exam format, I used two sections of an introductory biology class. One section was assessed with exams in the traditional MC format, the other section was assessed with both MC and constructed-response (CR) questions. The mixed exam format was correlated with significantly more cognitively active study behaviors and a significantly better performance on the cumulative final exam (after accounting for grade point average and gender). There was also less gender-bias in the CR answers. This suggests that the MC-only exam format indeed hinders critical thinking in introductory science classes. Introducing CR questions encouraged students to learn more and to be better critical thinkers and reduced gender bias. However, student resistance increased as students adjusted their perceptions of their own critical-thinking abilities. PMID:22949426

14 CFR 135.129 - Exit seating.

Science.gov (United States)

2010-01-01

... emergency evacuation provided by the certificate holder in printed or graphic form or the ability to... accordance with this section. (d) Each certificate holder shall include on passenger information cards.... (e) Each certificate holder shall include on passenger information cards, at each exit seat— (1) In...

Test anxiety levels of board exam going students in Tamil Nadu, India.

Science.gov (United States)

Mary, Revina Ann; Marslin, Gregory; Franklin, Gregory; Sheeba, Caroline J

2014-01-01

The latest report by the National Crime Records Bureau has positioned Tamil Nadu as the Indian state with highest suicide rate. At least in part, this is happening due to exam pressure among adolescents, emphasizing the imperative need to understand the pattern of anxiety and various factors contributing to it among students. The present study was conducted to analyze the level of state anxiety among board exam attending school students in Tamil Nadu, India. A group of 100 students containing 50 boys and 50 girls from 10th and 12th grades participated in the study and their state anxiety before board exams was measured by Westside Test Anxiety Scale. We found that all board exam going students had increased level of anxiety, which was particularly higher among boys and 12th standard board exam going students. Analysis of various demographic variables showed that students from nuclear families presented higher anxiety levels compared to their desired competitive group. Overall, our results showing the prevalence of state anxiety among board exam going students in Tamil Nadu, India, support the recent attempt taken by Tamil Nadu government to improve student's academic performance in a healthier manner by appointing psychologists in all government schools.

Door locking and exit security measures on acute psychiatric admission wards

NARCIS (Netherlands)

Nijman, H.L.I.; Bowers, L.; Haglund, K.; Muir-Cochrane, E.; Simpson, A.; Merwe, M. van der

2011-01-01

Locking the exit doors of psychiatric wards is believed to reduce the risk of patients absconding. The aims of the study were to investigate both the prevalence of door locking and other exit security measures on UK admission wards, as well as whether door locking appears to be effective in keeping

Challenges in Creating Online Exercises and Exams in Organic Chemistry.

Science.gov (United States)

Jaun, Bernhard; Thilgen, Carlo

2018-02-01

e-Learning has become increasingly important in chemical education and online exams can be an attractive alternative to traditional exams written on paper, particularly in classes with a large number of students. Ten years ago, we began to set up an e-course complementing our lecture courses Organic Chemistry I and II within the open-source e-learning environment Moodle. In this article, we retrace a number of decisions we took over time, thereby illustrating the challenges one faces when creating online exercises and exams in (organic) chemistry. Special emphasis is put on the development of MOSFECCS (MOlecular Structural Formula Editor and Calculator of Canonical SMILES), our new editor for drawing structural formulae and converting them to alphanumeric SMILES codes that can be submitted as answers to e-problems. Convinced that the possibility for structure input is essential to set up sensible chemistry quizzes and exams, and realising that existing tools present major flaws in an educational context, we decided to embark on the implementation of MOSFECCS which takes into account a number of didactic aspects.

The justification principle applied to Computed tomography exams

International Nuclear Information System (INIS)

Machado Tejeda, A.; Mora Machado, R. de la; Garcia Moreira, T.; Hing Perdomo, J.

2008-01-01

The increasing use of imaging technologies and the installation of more sophisticated equipment in radiology services, such as multi-slice CT scanners have consequently increased the number of treated patients, as well as the collective doses to population. Radiation doses received from CT exams are higher than those received in conventional radiology. The optimal use of CT equipment, considering optimized techniques, and the justification of examinations, are imperative in order to minimize the undesirable effects of radiation. In this paper we do set out to the assessment of justification criteria applied for CT exams in a Cuban Hospital. The justification of prescribed tests by physicians was analyzed, assessing its incidence depending on the kind of studies and percentage (%) of positive and negative cases. The study was carried out in a Clinical Surgical Hospital in Havana City. This hospital has installed a Shimadzu SCT-7800TC helical single-slice device. The sample is made up of 81 patients, between 24 and 80 years old, both men and women. For all of them the pathology that causes the order of the exam as well as the existence of other previous tests, were considered. As a result of the assessment, the 56.8% of all cases turned out to be positives; the 55.5% only confirmed the pathologies and the 1.23% produced new evidences. On the other hand, the remaining 43.2% were negatives noting that the 65.3% of the patients there were not previous imaging tests. Skull exam was the most incidences compiling the 67.7% of cases, and it was the headache the most frequent clinical problem to perform the 41.1%. In terms of justification, the evaluation of prescriptions evidenced that CT exams were not justified in 43.2% of cases. As part of this last group, it was also found that 46.9% of clinical studies were negative. (author)

Correlation between clinical examination, mammography and ultrasonography with histopathological exam in the determination of tumor size in breast cancer; Correlacao entre o exame clinico, a mamografia e a ultra-sonografia com o exame anatomopatologico na determinacao do tamanho tumoral no cancer de mama

Energy Technology Data Exchange (ETDEWEB)

Siqueira, Fernanda Monteiro de Paula; Rezende, Cezar Alencar de Lima [Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, MG (Brazil). Faculdade de Medicina. Dept. de Ginecologia e Obstetricia]. E-mail: fersiqueira75@yahoo.com.br; Barra, Alexandre de Almeida [Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, MG (Brazil). Hospital das Clinicas. Servico de Diagnostico por Imagem

2008-07-01

Purpose: to evaluate which method is the best to determine pre-surgically the size of breast cancer: clinical examination, mammography or ultrasonography, using as a reference the anatomopathological exam. Methods: this study has included 184 patients with palpable-or-not breast lesions, detected by mammography and ultrasonography, that were submitted to surgical resection of the tumor, with histopathological diagnosis of breast cancer. The same examiner evaluated clinically the largest tumoral diameter, through clinical examination, mammography and ultrasonography, and the measurements obtained by each method were correlated with the maximum diameter obtained by the anatomopathological exam. The comparative analysis has been done by Pearson's correlation coefficient (r). Results: Pearson's correlation coefficient between the anatomopathological and the clinical exams was 0.8; between the anatomopathological exam and the mammography, 0.7; and between anatomopathological exam and ultrasonography 0.7 (p<0.05). Pearson's correlation coefficients among the methods evaluated were also calculated and r=0.7 was obtained between clinical exam and mammography, r=0.8 between clinical examination and ultrasonography, and r=0.8 between mammography and ultrasonography (p<0.05). Conclusions: clinical examination, mammography and ultrasonography have presented high correlation with the anatomopathological measures, besides high correlations among themselves, what seems to show that they may be used as equivalent methods in the pre-surgical evaluation of the breast tumoral size. Nevertheless, due to specific limitations of each method, clinical examination, mammography and ultrasonography should be seen as complementary to each other, in order to obtain a more accurate measurement of the breast cancer tumor.(author)

EXIT Chart Analysis of Binary Message-Passing Decoders

DEFF Research Database (Denmark)

Lechner, Gottfried; Pedersen, Troels; Kramer, Gerhard

2007-01-01

Binary message-passing decoders for LDPC codes are analyzed using EXIT charts. For the analysis, the variable node decoder performs all computations in the L-value domain. For the special case of a hard decision channel, this leads to the well know Gallager B algorithm, while the analysis can...... be extended to channels with larger output alphabets. By increasing the output alphabet from hard decisions to four symbols, a gain of more than 1.0 dB is achieved using optimized codes. For this code optimization, the mixing property of EXIT functions has to be modified to the case of binary message......-passing decoders....

Predicting The Exit Time Of Employees In An Organization Using Statistical Model

Directory of Open Access Journals (Sweden)

Ahmed Al Kuwaiti

2015-08-01

Full Text Available Employees are considered as an asset to any organization and each organization provide a better and flexible working environment to retain its best and resourceful workforce. As such continuous efforts are being taken to avoid or extend the exitwithdrawal of employees from the organization. Human resource managers are facing a challenge to predict the exit time of employees and there is no precise model existing at present in the literature. This study has been conducted to predict the probability of exit of an employee in an organization using appropriate statistical model. Accordingly authors designed a model using Additive Weibull distribution to predict the expected exit time of employee in an organization. In addition a Shock model approach is also executed to check how well the Additive Weibull distribution suits in an organization. The analytical results showed that when the inter-arrival time increases the expected time for the employees to exit also increases. This study concluded that Additive Weibull distribution can be considered as an alternative in the place of Shock model approach to predict the exit time of employee in an organization.

Teaching Materials and Strategies for the AP Music Theory Exam

Science.gov (United States)

Lively, Michael T.

2017-01-01

Each year, many students take the Advanced Placement (AP) Music Theory Exam, and the majority of these students enroll in specialized AP music theory classes as part of the preparation process. For the teachers of these AP music theory classes, a number of challenges are presented by the difficulty and complexity of the exam subject material as…

Approaches to Studying and Academic Performance in Short Essay Exams

Science.gov (United States)

Minbashian, Amirali; Huon, Gail F.; Bird, Kevin D.

2004-01-01

Previous research has generally failed to find a relation between the way students approach the task of studying and their exam grades. The present study investigated why it is that a deep approach to studying, which has been shown to result in a higher quality of learning, does not consistently result in higher exam grades. The participants in…

14 CFR 121.585 - Exit seating.

Science.gov (United States)

2010-01-01

... section and related to emergency evacuation provided by the certificate holder in printed or graphic form... include on passenger information cards, presented in the language in which briefings and oral commands are... passenger information cards, at each exit seat— (1) In the primary language in which emergency commands are...

Introducing Standardized EFL/ESL Exams

Science.gov (United States)

Laborda, Jesus Garcia

2007-01-01

This article presents the features, and a brief comparison, of some of the most well-known high-stakes exams. They are classified in the following fashion: tests that only include multiple-choice questions, tests that include writing and multiple-choice questions, and tests that include speaking questions. The tests reviewed are: BULATS, IELTS,…

Diverse Regular Employees and Non-regular Employment (Japanese)

OpenAIRE

MORISHIMA Motohiro

2011-01-01

Currently there are high expectations for the introduction of policies related to diverse regular employees. These policies are a response to the problem of disparities between regular and non-regular employees (part-time, temporary, contract and other non-regular employees) and will make it more likely that workers can balance work and their private lives while companies benefit from the advantages of regular employment. In this paper, I look at two issues that underlie this discussion. The ...

Aggregating job exit statuses of a plurality of compute nodes executing a parallel application

Science.gov (United States)

Aho, Michael E.; Attinella, John E.; Gooding, Thomas M.; Mundy, Michael B.

2015-07-21

Aggregating job exit statuses of a plurality of compute nodes executing a parallel application, including: identifying a subset of compute nodes in the parallel computer to execute the parallel application; selecting one compute node in the subset of compute nodes in the parallel computer as a job leader compute node; initiating execution of the parallel application on the subset of compute nodes; receiving an exit status from each compute node in the subset of compute nodes, where the exit status for each compute node includes information describing execution of some portion of the parallel application by the compute node; aggregating each exit status from each compute node in the subset of compute nodes; and sending an aggregated exit status for the subset of compute nodes in the parallel computer.

Comparison of exit time moment spectra for extrinsic metric balls

DEFF Research Database (Denmark)

Hurtado, Ana; Markvorsen, Steen; Palmer, Vicente

2012-01-01

We prove explicit upper and lower bounds for the $L^1$-moment spectra for the Brownian motion exit time from extrinsic metric balls of submanifolds $P^m$ in ambient Riemannian spaces $N^n$. We assume that $P$ and $N$ both have controlled radial curvatures (mean curvature and sectional curvature...... obtain new intrinsic comparison results for the exit time spectra for metric balls in the ambient manifolds $N^n$ themselves....

Want to Reduce Guessing and Cheating While Making Students Happier? Give More Exams!

Science.gov (United States)

Laverty, James T.; Bauer, Wolfgang; Kortemeyer, Gerd; Westfall, Gary

2012-12-01

It is almost universally agreed that more frequent formative assessment (homework, clicker questions, practice tests, etc.) leads to better student performance and generally better course evaluations. There is, however, only anecdotal evidence that the same would be true for more frequent summative assessment (exams). There maybe many arguments against giving more exams, including the general "pain" associated with examinations, as well as reduced teaching time, since classroom sessions are dedicated to exams rather than lecturing. We present evidence that increasing the number of exams in fact does lead to better learning success, less cheating and guessing on homework, and better student course evaluations.

Formal procedures of the exit from a community for a university social media agency

OpenAIRE

Peleschyshyn, Andriy; Peleschyshyn, Oksana; Korzh, Roman

2016-01-01

The aim of the paper is to consider the process of exiting of a university from an online community. The importance of performing the task of exiting in a proper way is proved. Preconditions and risks of the process are investigated. All the stages of the suggested algorithm for exiting from online community are scrutinized.

MR detection of retinal hemorrhages: correlation with graded ophthalmologic exam

International Nuclear Information System (INIS)

Beavers, Angela J.; Allbery, Sandra M.; Stagner, Anna M.; Hejkal, Thomas W.; Lyden, Elizabeth R.; Haney, Suzanne B.

2015-01-01

Dilated fundoscopic exam is considered the gold standard for detecting retinal hemorrhage, but expertise in obtaining this exam is not always immediately available. MRI can detect retinal hemorrhages, but correlation of the grade or severity of retinal hemorrhage on dilated fundoscopic exam with retinal hemorrhage visibility on MRI has not been described. To determine the value of standard brain protocol MRI in detecting retinal hemorrhage and to determine whether there is any correlation with MR detection of retinal hemorrhage and the dilated fundoscopic exam grade of hemorrhage. We conducted a retrospective chart review of 77 children <2 years old who were seen for head trauma from April 2007 to July 2013 and had both brain MRI and dilated fundoscopic exam or retinal camera images. A staff pediatric radiologist and radiology resident reviewed the MR images. Retinal hemorrhages were graded by a chief ophthalmology resident on a 12-point scale based on the retinal hemorrhage type, size, location and extent as seen on review of retinal camera images and detailed reports by ophthalmologists. Higher scores indicated increased severity of retinal hemorrhages. There was a statistically significant difference in the median grade of retinal hemorrhage examination between children who had retinal hemorrhage detected on MRI and children who did not have retinal hemorrhage detected on MRI (P = 0.02). When examination grade was categorized as low-grade (1-4), moderate-grade (5-8) or high-grade (>8) hemorrhage, there was a statistically significant association between exam grade and diagnosis based on MRI (P = 0.008). For example, only 14% of children with low-grade retinal hemorrhages were identified on MRI compared to 76% of children with high-grade hemorrhages. MR detection of retinal hemorrhage demonstrated a sensitivity of 61%, specificity of 100%, positive predictive value of 100% and negative predictive value of 63%. Retinal hemorrhage was best seen on the gradient

X-Ray Exam: Femur (Upper Leg)

Science.gov (United States)

... Staying Safe Videos for Educators Search English Español X-Ray Exam: Femur (Upper Leg) KidsHealth / For Parents / X- ... Muscles, and Joints Broken Bones Getting an X-ray (Video) X-Ray (Video) View more Partner Message About Us ...

Efficiency, Leverage and Exit: The Role of Information Asymmetry in Concentrated Industries

DEFF Research Database (Denmark)

Siyahhan, Baran

2011-01-01

This paper develops a real options model of imperfect competition with asymmetric information that analyzes firms’ exit decisions. Optimal exit decision is linked to firm characteristics such as financial leverage and efficiency. The model shows that informational asymmetries can lead more...

Efficiency, Leverage and Exit: The Role of Information Asymmetry in Concentrated Industries

DEFF Research Database (Denmark)

Siyahhan, Baran

This paper develops a real options model of imperfect competition with asymmetric information that analyzes firms’ exit decisions. Optimal exit decision is linked to firm characteristics such as financial leverage and efficiency. The model shows that informational asymmetries can lead more...

Radiation Exposure from Medical Exams and Procedures

Science.gov (United States)

Fact Sheet Adopted: January 2010 Health Physics Society Specialists in Radiation Safety Radiation Exposure from Medical Exams and Procedures Ionizing radiation is used daily in hospitals and clinics ...

MCTS self-paced training kit (exam 70-680) configuring Windows 7

CERN Document Server

McLean, Ian

2010-01-01

NOTE: The most recent printings of this title incorporate corrections to errors found in the earlier printings. This Self-Paced Training Kit is designed to help maximize your performance on 70-680, the required exam for the Microsoft® Certified Technology Specialist (MCTS): Windows 7, Configuration certification.This 2-in-1 kit includes the official Microsoft study guide, plus practice tests on CD to help you assess your skills. It comes packed with the tools and features exam candidates want most-including in-depth, self-paced training based on final exam content; rigorous, objective-by-obj

English-Spanish Verbatim Translation Exam.

Science.gov (United States)

Stansfield, Charles W.; And Others

The development and validation of the English-Spanish Verbatim Translation Exam (ESVTE) is described. The test is for use by the Federal Bureau of Investigation (FBI) in the selection of applicants for the positions of Language Specialist or Contract Linguist. The report is divided into eight sections. Section 1 describes the need for the test,…

Effect of Repeated/Spaced Formative Assessments on Medical School Final Exam Performance

Directory of Open Access Journals (Sweden)

Edward K. Chang

2017-06-01

Discussion: Performance on weekly formative assessments was predictive of final exam scores. Struggling medical students will benefit from extra cumulative practice exams while students who are excelling do not need extra practice.

Sleep quality during exam stress: the role of alcohol, caffeine and nicotine.

Science.gov (United States)

Zunhammer, Matthias; Eichhammer, Peter; Busch, Volker

2014-01-01

Academic exam stress is known to compromise sleep quality and alter drug consumption in university students. Here we evaluated if sleeping problems and changes in legal drug consumption during exam stress are interrelated. We used the Pittsburgh Sleep Quality Index (PSQI) to survey sleep quality before, during, and after an academic exam period in 150 university students in a longitudinal questionnaire study. Self-reports of alcohol, caffeine, and nicotine consumption were obtained. The Perceived Stress Questionnaire (PSQ-20) was used as a measure of stress. Sleep quality and alcohol consumption significantly decreased, while perceived stress and caffeine consumption significantly increased during the exam period. No significant change in nicotine consumption was observed. In particular, students shortened their time in bed and showed symptoms of insomnia. Mixed model analysis indicated that sex, age, health status, as well as the amounts of alcohol and caffeine consumed had no significant influence on global sleep quality. The amount of nicotine consumed and perceived stress were identified as significant predictors of diminished sleep quality. Nicotine consumption had a small-to-very-small effect on sleep quality; perceived stress had a small-to-moderate effect. In conclusion, diminished sleep quality during exam periods was mainly predicted by perceived stress, while legal drug consumption played a minor role. Exam periods may pose an interesting model for the study of stress-induced sleeping problems and their mechanisms.

Toward 3D structural information from quantitative electron exit wave analysis

International Nuclear Information System (INIS)

Borisenko, Konstantin B; Moldovan, Grigore; Kirkland, Angus I; Wang, Amy; Van Dyck, Dirk; Chen, Fu-Rong

2012-01-01

Simulations show that using a new direct imaging detector and accurate exit wave restoration algorithms allows nearly quantitative restoration of electron exit wave phase, which can be regarded as only qualitative for conventional indirect imaging cameras. This opens up a possibility of extracting accurate information on 3D atomic structure of the sample even from a single projection.

Official (ISC)2 guide to the CISSP exam

CERN Document Server

Hansche, Susan; Hare, Chris

2003-01-01

Candidates for the CISSP exam can now go directly to the source for study materials that are indispensable in achieving certification. The Official (ISC)2 Guide to the CISSP Exam is derived from the actual CBK review course created and administered by the non-profit security consortium (ISC)2. In addition to being an invaluable study guide, this book is detailed enough to serve as an authoritative information security resource. Both of the guide's co-authors are CISSPs, and the entire text has been reviewed and approved by Hal Tipton, Co-Founder and Past President of ISSA and Co-Founder of (I

Beta-Blockers for Exams Identify Students at High Risk of Psychiatric Morbidity.

Science.gov (United States)

Butt, Jawad H; Dalsgaard, Søren; Torp-Pedersen, Christian; Køber, Lars; Gislason, Gunnar H; Kruuse, Christina; Fosbøl, Emil L

2017-04-01

Beta-blockers relieve the autonomic symptoms of exam-related anxiety and may be beneficial in exam-related and performance anxiety, but knowledge on related psychiatric outcomes is unknown. We hypothesized that beta-blocker therapy for exam-related anxiety identifies young students at risk of later psychiatric events. Using Danish nationwide administrative registries, we studied healthy students aged 14-30 years (1996-2012) with a first-time claimed prescription for a beta-blocker during the exam period (May-June); students who were prescribed a beta-blocker for medical reasons were excluded. We matched these students on age, sex, and time of year to healthy and study active controls with no use of beta-blockers. Risk of incident use of antidepressants, incident use of other psychotropic medications, and suicide attempts was examined by cumulative incidence curves for unadjusted associations and multivariable cause-specific Cox proportional hazard analyses for adjusted hazard ratios (HRs). We identified 12,147 healthy students with exam-related beta-blocker use and 12,147 matched healthy students with no current or prior use of beta-blockers (median age, 19 years; 80.3% women). Among all healthy students, 0.14% had a first-time prescription for a beta-blocker during the exam period with the highest proportion among students aged 19 years (0.39%). Eighty-one percent of the students filled only that single prescription for a beta-blocker during follow-up. During follow-up, 2225 (18.3%) beta-blocker users and 1400 (11.5%) nonbeta-blocker users were prescribed an antidepressant (p beta-blocker users and 658 (5.4%) nonbeta-blocker users were prescribed a psychotropic drug (p beta-blocker users and 6 (0.05%) nonbeta-blocker users attempted suicide (p = 0.03). Exam-related beta-blocker use was associated with an increased risk of antidepressant use (adjusted HRs, 1.68 [95% confidence intervals (CIs), 1.57-1.79], p beta-blockers during the exam period was

WE-D-213-04: Preparing for Parts 2 & 3 of the ABR Nuclear Medicine Physics Exam

Energy Technology Data Exchange (ETDEWEB)

MacDougall, R. [Children’s Hospital (United States)

2015-06-15

Adequate, efficient preparation for the ABR Diagnostic and Nuclear Medical Physics exams is key to successfully obtain ABR professional certification. Each part of the ABR exam presents its own challenges: Part I: Determine the scope of basic medical physics study material, efficiently review this material, and solve related written questions/problems. Part II: Understand imaging principles, modalities, and systems, including image acquisition, processing, and display. Understand the relationship between imaging techniques, image quality, patient dose and safety, and solve related written questions/problems. Part III: Gain crucial, practical, clinical medical physics experience. Effectively communicate and explain the practice, performance, and significance of all aspects of clinical medical physics. All three parts of the ABR exam require specific skill sets and preparation: mastery of basic physics and imaging principles; written problem solving often involving rapid calculation; responding clearly and succinctly to oral questions about the practice, methods, and significance of clinical medical physics. This symposium focuses on the preparation and skill sets necessary for each part of the ABR exam. Although there is some overlap, the nuclear exam covers a different body of knowledge than the diagnostic exam. A separate speaker will address those aspects that are unique to the nuclear exam. Medical physicists who have recently completed each of part of the ABR exam will share their experiences, insights, and preparation methods to help attendees best prepare for the challenges of each part of the ABR exam. In accordance with ABR exam security policy, no recalls or exam questions will be discussed. Learning Objectives: How to prepare for Part 1 of the ABR exam by determining the scope of basic medical physics study material and related problem solving/calculations How to Prepare for Part 2 of the ABR exam by understanding diagnostic and/or nuclear imaging physics

MO-F-204-04: Preparing for Parts 2 & 3 of the ABR Nuclear Medicine Physics Exam

International Nuclear Information System (INIS)

MacDougall, R.

2016-01-01

Adequate, efficient preparation for the ABR Diagnostic and Nuclear Medical Physics exams is key to successfully obtain ABR certification. Each part of the ABR exam presents its own challenges: Part I: Determine the scope of basic medical physics study material, efficiently review this material, and solve related written questions/problems. Part II: Understand imaging principles, modalities, and systems, including image acquisition, processing, and display. Understand the relationship between imaging techniques, image quality, patient dose and safety, and solve related written questions/problems. Part III: Gain crucial, practical, clinical medical physics experience. Effectively communicate and explain the practice, performance, and significance of all aspects of clinical medical physics. All parts of the ABR exam require specific skill sets and preparation: mastery of basic physics and imaging principles; written problem solving often involving rapid calculation; responding clearly and succinctly to oral questions about the practice, methods, and significance of clinical medical physics. This symposium focuses on the preparation necessary for each part of the ABR exam. Although there is some overlap, the nuclear exam covers a different body of knowledge than the diagnostic exam. A separate speaker will address those unique aspects of the nuclear exam, and how preparing for a second specialty differs from the first. Medical physicists who recently completed each ABR exam portion will share their experiences, insights, and preparation methods to help attendees best prepare for the challenges of each part of the ABR exam. In accordance with ABR exam security policy, no recalls or exam questions will be discussed. Learning Objectives: How to prepare for Part 1 of the ABR exam by determining the scope of basic medical physics study material and related problem solving/calculations How to prepare for Part 2 of the ABR exam by understanding diagnostic and/or nuclear

WE-D-213-04: Preparing for Parts 2 & 3 of the ABR Nuclear Medicine Physics Exam

International Nuclear Information System (INIS)

MacDougall, R.

2015-01-01

Adequate, efficient preparation for the ABR Diagnostic and Nuclear Medical Physics exams is key to successfully obtain ABR professional certification. Each part of the ABR exam presents its own challenges: Part I: Determine the scope of basic medical physics study material, efficiently review this material, and solve related written questions/problems. Part II: Understand imaging principles, modalities, and systems, including image acquisition, processing, and display. Understand the relationship between imaging techniques, image quality, patient dose and safety, and solve related written questions/problems. Part III: Gain crucial, practical, clinical medical physics experience. Effectively communicate and explain the practice, performance, and significance of all aspects of clinical medical physics. All three parts of the ABR exam require specific skill sets and preparation: mastery of basic physics and imaging principles; written problem solving often involving rapid calculation; responding clearly and succinctly to oral questions about the practice, methods, and significance of clinical medical physics. This symposium focuses on the preparation and skill sets necessary for each part of the ABR exam. Although there is some overlap, the nuclear exam covers a different body of knowledge than the diagnostic exam. A separate speaker will address those aspects that are unique to the nuclear exam. Medical physicists who have recently completed each of part of the ABR exam will share their experiences, insights, and preparation methods to help attendees best prepare for the challenges of each part of the ABR exam. In accordance with ABR exam security policy, no recalls or exam questions will be discussed. Learning Objectives: How to prepare for Part 1 of the ABR exam by determining the scope of basic medical physics study material and related problem solving/calculations How to Prepare for Part 2 of the ABR exam by understanding diagnostic and/or nuclear imaging physics

MO-F-204-04: Preparing for Parts 2 & 3 of the ABR Nuclear Medicine Physics Exam

Energy Technology Data Exchange (ETDEWEB)

MacDougall, R. [Boston Children’s Hospital (United States)

2016-06-15

Adequate, efficient preparation for the ABR Diagnostic and Nuclear Medical Physics exams is key to successfully obtain ABR certification. Each part of the ABR exam presents its own challenges: Part I: Determine the scope of basic medical physics study material, efficiently review this material, and solve related written questions/problems. Part II: Understand imaging principles, modalities, and systems, including image acquisition, processing, and display. Understand the relationship between imaging techniques, image quality, patient dose and safety, and solve related written questions/problems. Part III: Gain crucial, practical, clinical medical physics experience. Effectively communicate and explain the practice, performance, and significance of all aspects of clinical medical physics. All parts of the ABR exam require specific skill sets and preparation: mastery of basic physics and imaging principles; written problem solving often involving rapid calculation; responding clearly and succinctly to oral questions about the practice, methods, and significance of clinical medical physics. This symposium focuses on the preparation necessary for each part of the ABR exam. Although there is some overlap, the nuclear exam covers a different body of knowledge than the diagnostic exam. A separate speaker will address those unique aspects of the nuclear exam, and how preparing for a second specialty differs from the first. Medical physicists who recently completed each ABR exam portion will share their experiences, insights, and preparation methods to help attendees best prepare for the challenges of each part of the ABR exam. In accordance with ABR exam security policy, no recalls or exam questions will be discussed. Learning Objectives: How to prepare for Part 1 of the ABR exam by determining the scope of basic medical physics study material and related problem solving/calculations How to prepare for Part 2 of the ABR exam by understanding diagnostic and/or nuclear

The AP Calculus Exam Reading Experience: Implications for Teacher Classroom Practice and Student Comprehension

Science.gov (United States)

Corcoran, Mimi

2017-01-01

This dissertation explores the views and experiences of high school calculus teachers and college mathematics professors on the professional development which occurs at the annual national AP Calculus exam grading. This professional development experience comes in several forms: the exam briefing sessions, the actual reading of the exams, the…

Association Between Health Plan Exit From Medicaid Managed Care and Quality of Care, 2006-2014.

Science.gov (United States)

Ndumele, Chima D; Schpero, William L; Schlesinger, Mark J; Trivedi, Amal N

2017-06-27

State Medicaid programs have increasingly contracted with insurers to provide medical care services for enrollees (Medicaid managed care plans). Insurers that provide these plans can exit Medicaid programs each year, with unclear effects on quality of care and health care experiences. To determine the frequency and interstate variation of health plan exit from Medicaid managed care and evaluate the relationship between health plan exit and market-level quality. Retrospective cohort of all comprehensive Medicaid managed care plans (N = 390) during the interval 2006-2014. Plan exit, defined as the withdrawal of a managed care plan from a state's Medicaid program. Eight measures from the Healthcare Effectiveness Data and Information Set were used to construct 3 composite indicators of quality (preventive care, chronic disease care management, and maternity care). Four measures from the Consumer Assessment of Healthcare Providers and Systems were combined into a composite indicator of patient experience, reflecting the proportion of beneficiaries rating experiences as 8 or above on a 0-to-10-point scale. Outcome data were available for 248 plans (68% of plans operating prior to 2014, representing 78% of beneficiaries). Of the 366 comprehensive Medicaid managed care plans operating prior to 2014, 106 exited Medicaid. These exiting plans enrolled 4 848 310 Medicaid beneficiaries, with a mean of 606 039 beneficiaries affected by plan exits annually. Six states had a mean of greater than 10% of Medicaid managed care recipients enrolled in plans that exited, whereas 10 states experienced no plan exits. Plans that exited from a state's Medicaid market performed significantly worse prior to exiting than those that remained in terms of preventive care (57.5% vs 60.4%; difference, 2.9% [95% CI, 0.3% to 5.5%]), maternity care (69.7% vs 73.6%; difference, 3.8% [95% CI, 1.7% to 6.0%]), and patient experience (73.5% vs 74.8%; difference, 1.3% [95% CI, 0.6% to 1

Stor forskel på kommuners bande-exit

DEFF Research Database (Denmark)

Mørck, Line Lerche

2015-01-01

DEBAT: Kommunerne har meget forskellige exit-tilbud til bande- og rockermedlemmer. Der er brug for mere indgående forskning, så vi ved, hvad der virker bedst, skriver Line Lerche Mørck, lektor i pædagogisk psykologi....

UOP HRM 300 Final Exam Guide (New, 2017) NEW

OpenAIRE

ADMIN

2018-01-01

UOP HRM 300 Final Exam Guide (New, 2017) NEW Check this A+ tutorial guideline at http://www.hrm300assignment.com/hrm-300-uop/hrm-300-final-exam-guide-latest For more classes visit http://www.hrm300assignment.com True and False: Please mark either T or F in the appropriate space before the question 1. ____A strategic plan is the company’s plan for how it will match its internal strengths and weaknesses with external opportunities and threats in or...

MCSA Windows Server 2012 R2 installation and configuration study guide exam 70-410

CERN Document Server

Panek, William

2015-01-01

Master Windows Server installation and configuration withhands-on practice and interactive study aids for the MCSA: WindowsServer 2012 R2 exam 70-410 MCSA: Windows Server 2012 R2 Installation and ConfigurationStudy Guide: Exam 70-410 provides complete preparationfor exam 70-410: Installing and Configuring Windows Server 2012 R2.With comprehensive coverage of all exam topics and plenty ofhands-on practice, this self-paced guide is the ideal resource forthose preparing for the MCSA on Windows Server 2012 R2. Real-worldscenarios demonstrate how the lessons are applied in everydaysettings. Reader

14 CFR 23.805 - Flightcrew emergency exits.

Science.gov (United States)

2010-01-01

... emergency exit must be located to allow rapid evacuation of the crew and have a size and shape of at least a... than six feet from the ground, an assisting means must be provided. The assisting means may be a rope...

Exit Polling in an Emergent Democracy: The Complex Case of Ukraine

Directory of Open Access Journals (Sweden)

Natalya Nikolaevna Kharchenko

2010-05-01

Full Text Available This report considers the methodological specifics of conducting exit polls to verify election returns, mainly using an example of election campaigns in Ukraine from 2002-2007. The deepest public resonance was aroused by exit polls conducted after the second round of Ukrainian presidential elections in 2004. These polls were one of the factors, which led to massive demonstrations (the so-called "Orange Revolution" and the revocation of election results. The authors show that in the environment of administrative pressure on voters, governmental control of mass media, and severe political struggle, inaccuracy increases. Thus, to acquire reliable and valid information, the polling methods used must be modified. The recommendations given for the methodology of conducting exit polls may be useful for emergent democratic countries.

Principal Licensure Exams and Future Job Performance: Evidence from the School Leaders Licensure Assessment

Science.gov (United States)

Grissom, Jason A.; Mitani, Hajime; Blissett, Richard S. L.

2017-01-01

Many states require prospective principals to pass a licensure exam to obtain an administrative license, but we know little about the potential effects of principal licensure exams on the pool of available principals or whether scores predict later job performance. We investigate the most commonly used exam, the School Leaders Licensure Assessment…

Sleep quality during exam stress: the role of alcohol, caffeine and nicotine.

Directory of Open Access Journals (Sweden)

Matthias Zunhammer

Full Text Available Academic exam stress is known to compromise sleep quality and alter drug consumption in university students. Here we evaluated if sleeping problems and changes in legal drug consumption during exam stress are interrelated. We used the Pittsburgh Sleep Quality Index (PSQI to survey sleep quality before, during, and after an academic exam period in 150 university students in a longitudinal questionnaire study. Self-reports of alcohol, caffeine, and nicotine consumption were obtained. The Perceived Stress Questionnaire (PSQ-20 was used as a measure of stress. Sleep quality and alcohol consumption significantly decreased, while perceived stress and caffeine consumption significantly increased during the exam period. No significant change in nicotine consumption was observed. In particular, students shortened their time in bed and showed symptoms of insomnia. Mixed model analysis indicated that sex, age, health status, as well as the amounts of alcohol and caffeine consumed had no significant influence on global sleep quality. The amount of nicotine consumed and perceived stress were identified as significant predictors of diminished sleep quality. Nicotine consumption had a small-to-very-small effect on sleep quality; perceived stress had a small-to-moderate effect. In conclusion, diminished sleep quality during exam periods was mainly predicted by perceived stress, while legal drug consumption played a minor role. Exam periods may pose an interesting model for the study of stress-induced sleeping problems and their mechanisms.

Beta-blockers for exams identify students at high risk of psychiatric morbidity

DEFF Research Database (Denmark)

Butt, Jawad H.; Dalsgaard, Søren; Torp-Pedersen, Christian

2017-01-01

Objectives: Beta-blockers relieve the autonomic symptoms of exam-related anxiety and may be beneficial in exam-related and performance anxiety, but knowledge on related psychiatric outcomes is unknown. We hypothesized that beta-blocker therapy for exam-related anxiety identifies young students...... at risk of later psychiatric events. Methods: Using Danish nationwide administrative registries, we studied healthy students aged 14-30 years (1996-2012) with a first-time claimed prescription for a beta-blocker during the exam period (May-June); students who were prescribed a beta-blocker for medical...... reasons were excluded. We matched these students on age, sex, and time of year to healthy and study active controls with no use of beta-blockers. Risk of incident use of antidepressants, incident use of other psychotropic medications, and suicide attempts was examined by cumulative incidence curves...

A Diversity Exit Interview/Survey for the Military

National Research Council Canada - National Science Library

Knouse, Stephen

2001-01-01

The exit interview and survey are means for identifying organizational problems, including diversity issues, through individuals separating from the organization, who are in a unique position to supply candid feedback...

Symmetry associated with symmetry break: Revisiting ants and humans escaping from multiple-exit rooms

Science.gov (United States)

Ji, Q.; Xin, C.; Tang, S. X.; Huang, J. P.

2018-02-01

Crowd panic has incurred massive injuries or deaths throughout the world, and thus understanding it is particularly important. It is now a common knowledge that crowd panic induces "symmetry break" in which some exits are jammed while others are underutilized. Amazingly, here we show, by experiment, simulation and theory, that a class of symmetry patterns come to appear for ants and humans escaping from multiple-exit rooms while the symmetry break exists. Our symmetry pattern is described by the fact that the ratio between the ensemble-averaging numbers of ants or humans escaping from different exits is equal to the ratio between the widths of the exits. The mechanism lies in the effect of heterogeneous preferences of agents with limited information for achieving the Nash equilibrium. This work offers new insights into how to improve public safety because large public areas are always equipped with multiple exits, and it also brings an ensemble-averaging method for seeking symmetry associated with symmetry breaking.

Exits from Temporary Jobs in Europe: A Competing Risks Analysis

DEFF Research Database (Denmark)

D'Addio, Anna Christina; Rosholm, Michael

2005-01-01

We study transitions out of temporary jobs using the waves 1994-1999 of the European Community Household Panel applying a discrete time duration model. Specifically, we use a multinomial logitmodel distinguishing between exits into permanent employment and non-employment. Two different specificat......We study transitions out of temporary jobs using the waves 1994-1999 of the European Community Household Panel applying a discrete time duration model. Specifically, we use a multinomial logitmodel distinguishing between exits into permanent employment and non-employment. Two different...

Medical students’ logbook case loads do not predict final exam scores in surgery clerkship

Directory of Open Access Journals (Sweden)

Alabbad J

2018-04-01

Full Text Available Jasim Alabbad,1,2 Fawaz Abdul Raheem,2 Ahmad Almusaileem,1 Sulaiman Almusaileem,1 Saba Alsaddah,2 Abdulaziz Almubarak2 1Department of Surgery, Faculty of Medicine, Kuwait University, Kuwait City, Kuwait; 2Department of Surgery, Mubarak Al-Kabeer Hospital, Jabriya, Kuwait Purpose: To investigate the reliability of medical student logbook data in assessing student performance and predicting outcomes in an objective standardized clinical exam and a multiple-choice exam during surgery rotation. In addition, we examined the relationship between exam performance and the number of clinical tutors per student.Materials and methods: A retrospective review of the logbooks of first and third clinical year medical students at the Faculty of Medicine, Kuwait University, was undertaken during their surgery rotation during the academic year 2012–2013.Results: Logbooks of 184 students were reviewed and analyzed. There were 92 and 93 students in the first and third clinical years, respectively. We did not identify any correlation between the number of clinical encounters and clinical exam or multiple-choice exam scores; however, there was an inverse relationship between the number of clinical tutors encountered during a rotation and clinical exam scores.Conclusion: Overall, there was no correlation between the volume of self-reported clinical encounters and exam scores. Furthermore, an inverse correlation between the number of clinical tutors encountered and clinical exam scores was detected. These findings indicate a need for reevaluation of the way logbook data are entered and used as an assessment tool. Keywords: OSCE, assessment, Kuwait, universities, rotation

An innovative addition to team-based-learning pedagogy to enhance teaching and learning: Students' perceptions of team exams.

Science.gov (United States)

Khansari, Parto S; Coyne, Leanne

The study investigates students' perceptions of the value of implementing a team exam to enhance learning prior to a summative assessment. Team exams are similar to midterm exams, except that answering questions is a team effort. Data was collected from second year pharmacy students at California Northstate University College of Pharmacy (CNUCOP) through a self-administered online survey. The survey questions included closed-ended questions to evaluate students' perception on preparedness for a summative assessment and to rank advantages and disadvantages of the team exams. Of the 40 students who completed the survey (38% response rate), 100% of participants agreed that having a team exam prior to a major exam made them feel more prepared for a major summative exam. Ninety-seven percent of students believed that the team exam helped them to identify gaps in their knowledge and 85% agreed that taking a team exam reinforced their knowledge by teaching other students. The survey results did not identify any major disadvantages to holding a team exam. Students perceived that taking a team exam prior to a midterm exam is an effective approach to review the course contents and identify areas of improvement. Copyright © 2017. Published by Elsevier Inc.

Adolescents Exiting Homelessness over Two Years: The Risk Amplification and Abatement Model

Science.gov (United States)

Milburn, Norweeta G.; Rice, Eric; Rotheram-Borus, Mary Jane; Mallett, Shelley; Rosenthal, Doreen; Batterham, Phillip; May, Susanne J.; Witkin, Andrea; Duan, Naihua

2009-01-01

The Risk Amplification and Abatement Model (RAAM) demonstrates that negative contact with socializing agents amplify risk, while positive contact abates risk for homeless adolescents. To test this model, the likelihood of exiting homelessness and returning to familial housing at 2 years and stably exiting over time are examined with longitudinal…

Transgenic C. elegans dauer larvae expressing hookworm phospho null DAF-16/FoxO exit dauer.

Directory of Open Access Journals (Sweden)

Verena Gelmedin

Full Text Available Parasitic hookworms and the free-living model nematode Caenorhabtidis elegans share a developmental arrested stage, called the dauer stage in C. elegans and the infective third-stage larva (L3 in hookworms. One of the key transcription factors that regulate entrance to and exit from developmental arrest is the forkhead transcription factor DAF-16/FoxO. During the dauer stage, DAF-16 is activated and localized in the nucleus. DAF-16 is negatively regulated by phosphorylation by the upstream kinase AKT, which causes DAF-16 to localize out of the nucleus and the worm to exit from dauer. DAF-16 is conserved in hookworms, and hypothesized to control recovery from L3 arrest during infection. Lacking reverse genetic techniques for use in hookworms, we used C. elegans complementation assays to investigate the function of Ancylostoma caninum DAF-16 during entrance and exit from L3 developmental arrest. We performed dauer switching assays and observed the restoration of the dauer phenotype when Ac-DAF-16 was expressed in temperature-sensitive dauer defective C. elegans daf-2(e1370;daf-16(mu86 mutants. AKT phosphorylation site mutants of Ac-DAF-16 were also able to restore the dauer phenotype, but surprisingly allowed dauer exit when temperatures were lowered. We used fluorescence microscopy to localize DAF-16 during dauer and exit from dauer in C. elegans DAF-16 mutant worms expressing Ac-DAF-16, and found that Ac-DAF-16 exited the nucleus during dauer exit. Surprisingly, Ac-DAF-16 with mutated AKT phosphorylation sites also exited the nucleus during dauer exit. Our results suggest that another mechanism may be involved in the regulation DAF-16 nuclear localization during recovery from developmental arrest.

Two-dimensional exit dosimetry using a liquid-filled electronic portal imaging device and a convolution model

International Nuclear Information System (INIS)

Boellaard, Ronald; Herk, Marcel van; Uiterwaal, Hans; Mijnheer, Ben

1997-01-01

Background and purpose: To determine the accuracy of two-dimensional exit dose measurements with an electronic portal imaging device, EPID, using a convolution model for a variety of clinically relevant situations. Materials and methods: Exit doses were derived from portal dose images, obtained with a liquid-filled EPID at distances of 50 cm or more behind the patient, by using a convolution model. The resulting on- and off-axis exit dose values were first compared with ionization chamber exit dose measurements for homogeneous and inhomogeneous phantoms in open and wedged 4,8 and 18 MV photon beams. The accuracy of the EPID exit dose measurements was then determined for a number of anthropomorphic phantoms (lung and larynx) irradiated under clinical conditions and for a few patients treated in an 8 MV beam. The latter results were compared with in vivo exit dose measurements using diodes. Results: The exit dose can be determined from portal images with an accuracy of 1.2% (1 SD) compared with ionization chamber measurements for open beams and homogeneous phantoms at all tested beam qualities. In the presence of wedges and for inhomogeneous phantoms the average relative accuracy slightly deteriorated to 1.7% (1 SD). For lung phantoms in a 4 MV beam a similar accuracy was obtained after refinement of our convolution model, which requires knowledge of the patient contour. Differences between diode and EPID exit dose measurements for an anthropomorphic lung phantom in an 8 MV beam were 2.5% at most, with an average agreement within 1% (1 SD). For larynx phantoms in a 4 MV beam exit doses obtained with an ionization chamber and EPID agreed within 1.5% (1 SD). Finally, exit doses in a few patients irradiated in an 8 MV beam could be determined with the EPID with an accuracy of 1.1% (1 SD) relative to exit dose measurements using diodes. Conclusions: Portal images, obtained with our EPID and analyzed with our convolution model, can be used to determine the exit dose

Explaining discrepancies in reproductive health indicators from population-based surveys and exit surveys: a case from Rwanda.

Science.gov (United States)

Meekers, D; Ogada, E A

2001-06-01

Reproductive health programmes often need exit surveys and population-based surveys for monitoring and evaluation. This study investigates why such studies produce discrepant estimates of condom use, sexual behaviour and condom brand knowledge, and discusses the implications for future use of exit surveys for programme monitoring. Logistic regression is used to explain differences between a household survey of 1295 persons and an exit survey among a random sample of 2550 consumers at retail outlets in RWANDA: Discrepancies in ever use of condoms and risky sexual behaviours are due to differences in socioeconomic status of the two samples. After controls, exit surveys at most outlet types have the same results as the household survey. Only exit surveys at bars, nightclubs and hotels yield significantly different estimates. However, the above-average knowledge of Prudence Plus condoms in the exit interviews is not attributable to socioeconomic or demographic variables, most likely because respondents have seen the product at the outlets. Information about condom use and sexual behaviour obtained from exit surveys appears as accurate as that obtained through household surveys. Nevertheless, exit surveys must be used cautiously. Because exit surveys may include wealthier and better-educated respondents, they are not representative of the general population. The composition of exit survey samples should be validated through existing household surveys. Comparisons across survey types are generally unadvisable, unless they control for sample differences. When generalizing to the population at large is not needed (e.g. for studies aimed at identifying the characteristics and behaviour of users of particular products or services), exit surveys can provide an appropriate alternative to household surveys.

An investigation of the issues involved in creating a bank of exam questions

OpenAIRE

Truscott, Harriet

2010-01-01

The project explored the potential for the University Library to provide staff and students with personalised resources and services, taking as a test case the Faculties' archives of past exam papers, attempting to provide students with a single web-page linking to all the past exam papers for the exams they are registered to take. This work was conducted as part of the Arcadia Programme, a three year programme funded by a grant from the Arcadia Fund.

Adolescents' sleep in low-stress and high-stress (exam) times: a prospective quasi-experiment.

Science.gov (United States)

Dewald, Julia F; Meijer, Anne Marie; Oort, Frans J; Kerkhof, Gerard A; Bögels, Susan M

2014-01-01

This prospective quasi-experiment (N = 175; mean age = 15.14 years) investigates changes in adolescents' sleep from low-stress (regular school week) to high-stress times (exam week), and examines the (moderating) role of chronic sleep reduction, baseline stress, and gender. Sleep was monitored over three consecutive weeks using actigraphy. Adolescents' sleep was more fragmented during the high-stress time than during the low-stress time, meaning that individuals slept more restless during stressful times. However, sleep efficiency, total sleep time, and sleep onset latency remained stable throughout the three consecutive weeks. High chronic sleep reduction was related to later bedtimes, later sleep start times, later sleep end times, later getting up times, and more time spent in bed. Furthermore, low chronic sleep reduction and high baseline stress levels were related to more fragmented sleep during stressful times. This study shows that stressful times can have negative effects on adolescents' sleep fragmentation, especially for adolescents with low chronic sleep reduction or high baseline stress levels.

Coordinate-invariant regularization

International Nuclear Information System (INIS)

Halpern, M.B.

1987-01-01

A general phase-space framework for coordinate-invariant regularization is given. The development is geometric, with all regularization contained in regularized DeWitt Superstructures on field deformations. Parallel development of invariant coordinate-space regularization is obtained by regularized functional integration of the momenta. As representative examples of the general formulation, the regularized general non-linear sigma model and regularized quantum gravity are discussed. copyright 1987 Academic Press, Inc

A comparison between students' attitudes and their performance regarding the factors influencing learning and exam results

Directory of Open Access Journals (Sweden)

A Ebrahimi

2009-03-01

Full Text Available Background: Various educational approaches to learning have been proposed. It is, of course, of vital importance to study those that have resulted in effective educational achievements.Purpose: To assess the student's attitudes and performance in order to evaluate educational approaches and identify the variables leading to students gaining good marks.Methods: The subjects of the study were medical students at pathophysiology  phase. A multiple-choice questionnaire was prepared, the reliability and validity of which were confirmed. A paired-sample T­ test was used to compare and analyze  the student's  Basic Sciences Comprehensive  Exam scores in each discipline and their average score during the basic sciences course.Results: With respect to attitudes, the students highly valued the importance of teacher's methodology and mutual  respect, as an influential  factor in Learning. Furthermore, the majority  of the students relied heavily  on their textbooks  as the main source of information  and preferred to study at home, rather than any other places. Most of the students prefer to study in the morning. They believed that mid-term exams, quizzes, and active class participation do not have much effect on learning. However, it was of high importance to them to attend practical claSSfS (labs. With respect to performance, most of the students used lecture notes as the main references, and considered their home as a good place to study and  preferred to study in the morning,  but have  participated  in theoretical  and  practical classes regularly.Conclusion: Most successful students attributed their success to active class participation,  takingmid-term exams, quizzes, and using library. Having analyzed the data, we recommend the authorities to provide more methodology  workshops for teachers,  sufficient  number of textbooks,  expanding  or increasing the number of the reading rooms with essential equipment

Solar photovoltaic basics a study guide for the NABCEP entry level exam

CERN Document Server

White, Sean

2014-01-01

Whether or not you are taking the NABCEP Entry Level Exam, learning the material covered in this book is the best investment you can make towards your place in the solar industry.This book explains the science of photovoltaics (PV) in a way that most people can understand using the curriculum which reflects the core modules of the NABCEP Entry Level Exam.Providing complete coverage of the NABCEP syllabus in easily accessible chapters, addressing all of the core objectives that will aid in passing the PV Entry Level Exam including the ten main skill sets:PV Markets and Applications Safety Basic

Ethnic variations in immigrant poverty exit and female employment: the missing link.

Science.gov (United States)

Kaida, Lisa

2015-04-01

Despite widespread interest in poverty among recent immigrants and female immigrant employment, research on the link between the two is limited. This study evaluates the effect of recently arrived immigrant women's employment on the exit from family poverty and considers the implications for ethnic differences in poverty exit. It uses the bivariate probit model and the Fairlie decomposition technique to analyze data from the Longitudinal Survey of Immigrants to Canada (LSIC), a nationally representative survey of immigrants arriving in Canada, 2000-2001. Results show that the employment of recently arrived immigrant women makes a notable contribution to lifting families out of poverty. Moreover, the wide ethnic variations in the probability of exit from poverty between European and non-European groups are partially explained by the lower employment rates among non-European women. The results suggest that the equal earner/female breadwinner model applies to low-income recent immigrant families in general, but the male breadwinner model explains the low probability of poverty exit among select non-European groups whose female employment rates are notably low.

Mean-Variance portfolio optimization when each asset has individual uncertain exit-time

Directory of Open Access Journals (Sweden)

Reza Keykhaei

2016-12-01

Full Text Available The standard Markowitz Mean-Variance optimization model is a single-period portfolio selection approach where the exit-time (or the time-horizon is deterministic. ‎In this paper we study the Mean-Variance portfolio selection problem ‎with ‎uncertain ‎exit-time ‎when ‎each ‎has ‎individual uncertain ‎xit-time‎, ‎which generalizes the Markowitz's model‎. ‎‎‎‎‎‎We provide some conditions under which the optimal portfolio of the generalized problem is independent of the exit-times distributions. Also, ‎‎it is shown that under some general circumstances, the sets of optimal portfolios‎ ‎in the generalized model and the standard model are the same‎.

[Relieving pre-exam anxiety syndrome with wrist-ankle acupuncture: a randomized controlled trial].

Science.gov (United States)

Shu, Shi; Li, Tong-ming; Fang, Fan-fu; He, Hou-luo; Zhou, Qing-hui; Gu, Wei; Zhou, Shuang

2011-06-01

Pre-exam anxiety syndrome is a common condition occurring in pre-exam students and directly affects their examination performance and physical state. Wrist-ankle acupuncture has significant therapeutic effects in treating mental disorders and may also relieve the symptoms of pre-exam anxiety syndrome. To assess the therapeutic effect of wrist-ankle acupuncture on pre-exam anxiety syndrome. A total of 60 students who met the inclusion criteria of pre-exam anxiety syndrome were enrolled from a university in Shanghai and they were randomly divided into treatment group and control group. There were 30 cases in each group, and no case failed to follow-up. In the treatment group, wrist-ankle acupuncture was adopted to point upper 1 bilaterally (impression between flexor carpi ulnaris tendon and ulnar margin), and there was no requirement for Deqi (arrival of qi). In the control group, sham acupuncture was adopted. The treatment was applied 3 times totally in both groups one week before the exam, once every other day, each time with the needles retained for 30 min. The therapeutic effects were compared between two groups. Before and after 3 treatments, Sarason Test Anxiety Scale (TAS) and Expectation and Treatment Credibility Scale (ETCS) were measured and evaluated. The therapeutic effect experienced by the treatment group was better than that of the control group (PETCS before treatment between the two groups. The scores of TAS after treatment in two groups were higher than those before treatment (PETCS than those in the control group (P<0.05, P<0.01). No adverse reaction was reported. Wrist-ankle acupuncture can relieve the symptoms of pre-exam anxiety syndrome significantly, and this therapy is highly safe.

Tunneling time, exit time and exit momentum in strong field tunnel ionization

International Nuclear Information System (INIS)

Teeny, Nicolas

2016-01-01

Tunnel ionization belongs to the fundamental processes of atomic physics. It is still an open question when does the electron tunnel ionize and how long is the duration of tunneling. In this work we solve the time-dependent Schroedinger equation in one and two dimensions and use ab initio quantum calculations in order to answer these questions. Additionally, we determine the exit momentum of the tunnel ionized electron from first principles. We find out results that are different from the assumptions of the commonly employed two-step model, which assumes that the electron ionizes at the instant of electric field maximum with a zero momentum. After determining the quantum final momentum distribution of tunnel ionized electrons we show that the two-step model fails to predict the correct final momentum. Accordingly we suggest how to correct the two-step model. Furthermore, we determine the instant at which tunnel ionization starts, which turns out to be different from the instant usually assumed. From determining the instant at which it is most probable for the electron to enter the tunneling barrier and the instant at which it exits we determine the most probable time spent under the barrier. Moreover, we apply a quantum clock approach in order to determine the duration of tunnel ionization. From the quantum clock we determine an average tunneling time which is different in magnitude and origin with respect to the most probable tunneling time. By defining a probability distribution of tunneling times using virtual detectors we relate both methods and explain the apparent discrepancy. The results found have in general an effect on the interpretation of experiments that measure the spectra of tunnel ionized electrons, and specifically on the calibration of the so called attoclock experiments, because models with imprecise assumptions are usually employed in order to interpret experimental results.

Tunneling time, exit time and exit momentum in strong field tunnel ionization

Energy Technology Data Exchange (ETDEWEB)

Teeny, Nicolas

2016-10-18

Tunnel ionization belongs to the fundamental processes of atomic physics. It is still an open question when does the electron tunnel ionize and how long is the duration of tunneling. In this work we solve the time-dependent Schroedinger equation in one and two dimensions and use ab initio quantum calculations in order to answer these questions. Additionally, we determine the exit momentum of the tunnel ionized electron from first principles. We find out results that are different from the assumptions of the commonly employed two-step model, which assumes that the electron ionizes at the instant of electric field maximum with a zero momentum. After determining the quantum final momentum distribution of tunnel ionized electrons we show that the two-step model fails to predict the correct final momentum. Accordingly we suggest how to correct the two-step model. Furthermore, we determine the instant at which tunnel ionization starts, which turns out to be different from the instant usually assumed. From determining the instant at which it is most probable for the electron to enter the tunneling barrier and the instant at which it exits we determine the most probable time spent under the barrier. Moreover, we apply a quantum clock approach in order to determine the duration of tunnel ionization. From the quantum clock we determine an average tunneling time which is different in magnitude and origin with respect to the most probable tunneling time. By defining a probability distribution of tunneling times using virtual detectors we relate both methods and explain the apparent discrepancy. The results found have in general an effect on the interpretation of experiments that measure the spectra of tunnel ionized electrons, and specifically on the calibration of the so called attoclock experiments, because models with imprecise assumptions are usually employed in order to interpret experimental results.

Ecologies of ideologies : Explaining party entry and exit in European parliaments, 1945-2013

NARCIS (Netherlands)

van de Wardt, Marc; Berkhout, Joost; Vermeulen, Floris

This study introduces a population-ecological approach to the entry and exit of political parties. A primary proposition of population ecology is that organizational entry and exit depends on the number of organizations already present: that is, density. We propose that political parties mainly

Market entry and exit by biotech and device companies funded by venture capital.

Science.gov (United States)

Burns, Lawton R; Housman, Michael G; Robinson, Charles A

2009-01-01

Start-up companies in the biotechnology and medical device sectors are important sources of health care innovation. This paper describes the role of venture capital in supporting these companies and charts the growth in venture capital financial support. The paper then uses longitudinal data to describe market entry and exit by these companies. Similar factors are associated with entry and exit in the two sectors. Entries and exits in one sector also appear to influence entry in the other. These findings have important implications for developing innovative technologies and ensuring competitive markets in the life sciences.

Evaluating outcomes of computer-based classroom testing: Student acceptance and impact on learning and exam performance.

Science.gov (United States)

Zheng, Meixun; Bender, Daniel

2018-03-13

Computer-based testing (CBT) has made progress in health sciences education. In 2015, the authors led implementation of a CBT system (ExamSoft) at a dental school in the U.S. Guided by the Technology Acceptance Model (TAM), the purposes of this study were to (a) examine dental students' acceptance of ExamSoft; (b) understand factors impacting acceptance; and (c) evaluate the impact of ExamSoft on students' learning and exam performance. Survey and focus group data revealed that ExamSoft was well accepted by students as a testing tool and acknowledged by most for its potential to support learning. Regression analyses showed that perceived ease of use and perceived usefulness of ExamSoft significantly predicted student acceptance. Prior CBT experience and computer skills did not significantly predict acceptance of ExamSoft. Students reported that ExamSoft promoted learning in the first program year, primarily through timely and rich feedback on examination performance. t-Tests yielded mixed results on whether students performed better on computerized or paper examinations. The study contributes to the literature on CBT and the application of the TAM model in health sciences education. Findings also suggest ways in which health sciences institutions can implement CBT to maximize its potential as an assessment and learning tool.

Applied electro-optics educational and training program with multiple entrance and exit pathways

Science.gov (United States)

Scott, Patricia; Zhou, Feng; Zilic, Dorothy

2007-06-01

This paper presents an innovative hands-on training program designed to create a pipeline of highly-skilled technical workers for today's workforce economy. The 2+2+2 Pennsylvania Integrated Workforce Leadership Program in Electro-Optics prepares students for a career in this new high-tech field. With seamless transition from high school into college, the program offers the versatility of multiple entrance and exit pathways. After completion of each educational level, students can exit the program with various skill levels, including certificates, an associate's degree, or a bachelor's degree. Launched by Indiana University of Pennsylvania (IUP) in partnership with Lenape Vocational School (Lenape), the 2+2+2 educational pathway program was implemented to promote early training of high-school students. During the first level, students in their junior and/or senior year enroll in four Electro-Optics courses at Lenape. Upon completion of these courses and an Advanced Placement Equivalency course with an appropriate exam score, students can earn a certificate from Lenape for the 15+ credits, which also can be articulated into IUP's associate degree program in Electro-Optics. During the second level, students can earn an associate's degree in Electro-Optics, offered only at the IUP Northpointe Campus. After completion of the Associate in Applied Science (A.A.S.), students are prepared to enter the workforce as senior technicians. During the third level, students who have completed the Associate of Science (A.S.) in Electro-Optics have the opportunity to matriculate at IUP's Indiana Campus to earn a Bachelor of Science (B.S.) degree in Applied Physics with a track in Electro-Optics. Hence, the name 2+2+2 refers to getting started in high school, continuing the educational experience with an associate's degree program, and optionally moving on to a bachelor's degree. Consequently, students move from one educational level to the next with advanced credits toward the next

The Role of Frequent Short Exams in Improving Student Performance in Hybrid Global Business Classes

Science.gov (United States)

Nakos, George; Whiting, Anita

2018-01-01

The authors investigate whether frequent in class exams can improve the performance of students in hybrid global business courses. An experiment was conducted in three hybrid sections of a global business course exposing students to short in class exams. The expectation of a short exam forces students to watch the online lectures and study the…

Wives' Relative Wages, Husbands' Paid Work Hours, and Wives' Labor-Force Exit

Science.gov (United States)

Shafer, Emily Fitzgibbons

2011-01-01

Economic theories predict that women are more likely to exit the labor force if their partners' earnings are higher and if their own wage rate is lower. In this article, I use the National Longitudinal Survey of Youth (N = 2,254) and discrete-time event-history analysis to show that wives' relative wages are more predictive of their exit than are…

Selection of regularization parameter for l1-regularized damage detection

Science.gov (United States)

Hou, Rongrong; Xia, Yong; Bao, Yuequan; Zhou, Xiaoqing

2018-06-01

The l1 regularization technique has been developed for structural health monitoring and damage detection through employing the sparsity condition of structural damage. The regularization parameter, which controls the trade-off between data fidelity and solution size of the regularization problem, exerts a crucial effect on the solution. However, the l1 regularization problem has no closed-form solution, and the regularization parameter is usually selected by experience. This study proposes two strategies of selecting the regularization parameter for the l1-regularized damage detection problem. The first method utilizes the residual and solution norms of the optimization problem and ensures that they are both small. The other method is based on the discrepancy principle, which requires that the variance of the discrepancy between the calculated and measured responses is close to the variance of the measurement noise. The two methods are applied to a cantilever beam and a three-story frame. A range of the regularization parameter, rather than one single value, can be determined. When the regularization parameter in this range is selected, the damage can be accurately identified even for multiple damage scenarios. This range also indicates the sensitivity degree of the damage identification problem to the regularization parameter.

Relationship between manual dexterity and the unified parkinson's disease rating scale-motor exam.

Science.gov (United States)

Hwang, Sujin; Song, Chiang-Soon

2016-12-01

[Purpose] The purpose of this study was to examine the relationships between manual dexterity and the Unified Parkinson's Disease Rating Scale-Motor Exam as a clinical tool for quantifying upper extremity function in persons with Parkinson's disease. [Subjects and Methods] Thirty-two persons with idiopathic Parkinson's disease participated in this study. This study measured two clinical outcomes, the box-and-block test and the Unified Parkinson's Disease Rating Scale-Motor Exam, to investigate the relationships between manual dexterity and the Unified Parkinson's Disease Rating Scale-Motor Exam. [Results] The box-and-block test on the more affected side was positive relationship with the box-and-block test on the less affected side. The Unified Parkinson's Disease Rating Scale-motor exam score had a negative correlation with the box-and-block test results for both sides. [Conclusion] A positive association was noted between manual dexterity and motor function in patients with idiopathic Parkinson disease. The results of this study suggest that the box-and-block test and the Unified Parkinson's Disease Rating Scale-Motor Exam are good clinical measures that quantify upper extremity function and are necessary for the accurate evaluation of patients and to plan intervention strategies.

First exit times of harmonically trapped particles: a didactic review

International Nuclear Information System (INIS)

Grebenkov, Denis S

2015-01-01

We revise the classical problem of characterizing first exit times of a harmonically trapped particle whose motion is described by a one- or multidimensional Ornstein–Uhlenbeck process. We start by recalling the main derivation steps of a propagator using Langevin and Fokker–Planck equations. The mean exit time, the moment-generating function and the survival probability are then expressed through confluent hypergeometric functions and thoroughly analyzed. We also present a rapidly converging series representation of confluent hypergeometric functions that is particularly well suited for numerical computation of eigenvalues and eigenfunctions of the governing Fokker–Planck operator. We discuss several applications of first exit times, such as the detection of time intervals during which motor proteins exert a constant force onto a tracer in optical tweezers single-particle tracking experiments; adhesion bond dissociation under mechanical stress; characterization of active periods of trend-following and mean-reverting strategies in algorithmic trading on stock markets; relation to the distribution of first crossing times of a moving boundary by Brownian motion. Some extensions are described, including diffusion under quadratic double-well potential and anomalous diffusion. (topical review)

Do continuous assessment results affect final exam outcomes? Evidence from a microeconomics course

Directory of Open Access Journals (Sweden)

Juan Carlos Reboredo

2017-04-01

Full Text Available Continuous assessment aims to enhance student learning and understanding of a subject and so achieve better educational outcomes. We investigated how continuous assessment grades affected final exam grades. Using a dataset for six academic post-Bologna Process years (2009-2015 for a first-year undergraduate microeconomics course offered at a Spanish public university, we examined conditional dependence between continuous assessment and final exam grades. Our results would indicate a limited contribution of continuous assessment results to final exam results: the probability of the final exam performance improving on the continuous assessment grade was lower than the probability of the opposite occurring. A consistent exception, however, was students who obtained an A grade for continuous assessment. Our results would cast some doubt on the beneficial effects of continuous assessment advocated by the Bologna Process.

Red vs. green: Does the exam booklet color matter in higher education summative evaluations? Not likely.

Science.gov (United States)

Arthur, Winfred; Cho, Inchul; Muñoz, Gonzalo J

2016-10-01

We examined the so-called "red effect" in the context of higher education summative exams under the premise that unlike the conditions or situations where this effect typically has been obtained, the totality of factors, such as higher motivation, familiarity with exam material, and more reliance on domain knowledge that characterize high-stakes testing such as those in operational educational settings, are likely to mitigate any color effects. Using three naturally occurring archival data sets in which students took exams on either red or green exam booklets, the results indicated that booklet color (red vs. green) did not affect exam performance. From a scientific perspective, the results suggest that color effects may be attenuated by factors that characterize high-stakes assessments, and from an applied perspective, they suggest that the choice of red vs. green exam booklets in higher education summative evaluations is likely not a concern.

Perceptions of students on the physical exams in clinical nursing practice

Directory of Open Access Journals (Sweden)

Maria de Fátima Lima de Oliveira

2016-05-01

Full Text Available Objective: to understand the perceptions of students from an undergraduate course in nursing on the importance of physical exams in clinical nursing practice. Methods: a qualitative study with 12 students of a private institution. For data analysis, the method of interpretation of meanings was used, based on the hermeneutic-dialectic perspective. Results: directions have been identified which give the physical exam an objective dimension, in which the accuracy of propaedeutic techniques is essential, and a relational dimension in which to give meaning to human actions permeated by subjectivity, new forms of production clinical nursing care are used. Conclusion: the physical exam contributes to the development of critical thinking in nursing care for the safety of the patient and autonomy to act in the scope of the clinical practice.

The Impact of Assessment Policy on Learning: Replacement Exams or Grade Dropping

Science.gov (United States)

MacDermott, Raymond J.

2013-01-01

Instructors often debate the merits of alternate grading policies such as dropping the lowest exam or offering an additional exam to replace the lowest score. To date, there has been little research conducted on the impact of these policies on performance. In this study, the author investigates student performance in intermediate macroeconomics…

Check your English vocabulary for FCE + all you need to pass your exams

CERN Document Server

Wyatt, Rawdon

2009-01-01

This workbook is designed to help students studying for the FCE (First Certificate Examination). This University of Cambridge exam is taken by over 250,000 people worldwide every year and is one of the most popular English Language Teaching (ELT) exams.

Inhibition of the mitotic exit network in response to damaged telomeres.

Directory of Open Access Journals (Sweden)

Mauricio Valerio-Santiago

Full Text Available When chromosomal DNA is damaged, progression through the cell cycle is halted to provide the cells with time to repair the genetic material before it is distributed between the mother and daughter cells. In Saccharomyces cerevisiae, this cell cycle arrest occurs at the G2/M transition. However, it is also necessary to restrain exit from mitosis by maintaining Bfa1-Bub2, the inhibitor of the Mitotic Exit Network (MEN, in an active state. While the role of Bfa1 and Bub2 in the inhibition of mitotic exit when the spindle is not properly aligned and the spindle position checkpoint is activated has been extensively studied, the mechanism by which these proteins prevent MEN function after DNA damage is still unclear. Here, we propose that the inhibition of the MEN is specifically required when telomeres are damaged but it is not necessary to face all types of chromosomal DNA damage, which is in agreement with previous data in mammals suggesting the existence of a putative telomere-specific DNA damage response that inhibits mitotic exit. Furthermore, we demonstrate that the mechanism of MEN inhibition when telomeres are damaged relies on the Rad53-dependent inhibition of Bfa1 phosphorylation by the Polo-like kinase Cdc5, establishing a new key role of this kinase in regulating cell cycle progression.

Visual Barriers to Prevent Ambulatory ALzheimer's Patients from Exiting through an Emergency Door.

Science.gov (United States)

Namazi, Kevan H.; And Others

1989-01-01

Conducted study on Alzheimer's unit to test seven different visual barrier conditions for reducing patient exits. Findings indicated that exiting was eliminated under two conditions. Results suggest visual agnosia, the inability to interpret what the eye sees, may be used as tool in managing wandering behavior of Alzheimer's patients. (Author/NB)

Entrance, exit, and reentrance of one shot with a shotgun

DEFF Research Database (Denmark)

Gulmann, C; Hougen, H P

1999-01-01

The case being reported is one of a homicidal shotgun fatality with an unusual wound pattern. A 34-year-old man was shot at close range with a 12-gauge shotgun armed with No. 5 birdshot ammunition. The shot entered the left axillary region, exited through the left infraclavicular region, and ther......The case being reported is one of a homicidal shotgun fatality with an unusual wound pattern. A 34-year-old man was shot at close range with a 12-gauge shotgun armed with No. 5 birdshot ammunition. The shot entered the left axillary region, exited through the left infraclavicular region...

Formation Mechanisms for Entry and Exit Defects in Bobbin Friction Stir Welding

Directory of Open Access Journals (Sweden)

Abbas Tamadon

2018-01-01

Full Text Available Bobbin friction stir welding (BFSW is an innovative variant for the solid state welding process whereby a rotating symmetrical tool causes a fully penetrated bond. Despite the process development, there are still unknown variables in the characterization of the process parameters which can cause uncontrolled weld defects. The entry zone and the exit zone consist of two discontinuity-defects and removing them is one of the current challenges for improving the weld quality. In the present research, the characteristic features of the entry and exit defects in the weld structure and formation mechanism of them during the BFSW processing was investigated. Using stacked layers of multi-colour plasticine the material flow, analogous to metal flow, can be visualised. By using different colours as the path markers of the analogue model, the streamline flow can be easily delineated in the discontinuity defects compared with the metal welds. AA6082-T6 aluminium plates and multi-layered plasticine slabs were employed to replicate the entry-exit defects in the metal weld and analogue samples. The fixed-bobbin tool utilized for this research was optimized by adding a thread feature and tri-flat geometry to the pin and closed-end spiral scrolls on both shoulder surfaces. Samples were processed at different rotating and longitudinal speeds to show the degree of dependency on the welding parameters for the defects. The analogue models showed that the entry zone and the exit zone of the BFSW are affected by the inhomogeneity of the material flow regime which causes the ejection or disruption of the plastic flow in the gap between the bobbin shoulders. The trial aluminium welds showed that the elimination of entry-exit defects in the weld body is not completely possible but the size of the defects can be minimized by modification of the welding parameters. For the entry zone, the flow pattern evolution suggested formation mechanisms for a sprayed tail, island zone

The impact of ill health on exit from paid employment in Europe among older workers.

Science.gov (United States)

van den Berg, Tilja; Schuring, Merel; Avendano, Mauricio; Mackenbach, Johan; Burdorf, Alex

2010-12-01

To determine the impact of ill health on exit from paid employment in Europe among older workers. Participants of the Survey on Health and Ageing in Europe (SHARE) in 11 European countries in 2004 and 2006 were selected when 50-63 years old and in paid employment at baseline (n=4611). Data were collected on self-rated health, chronic diseases, mobility limitations, obesity, smoking, alcohol use, physical activity and work characteristics. Participants were classified into employed, retired, unemployed and disabled at the end of the 2-year follow-up. Multinomial logistic regression was used to estimate the effect of different measures of ill health on exit from paid employment. During the 2-year follow-up, 17% of employed workers left paid employment, mainly because of early retirement. Controlling for individual and work related characteristics, poor self-perceived health was strongly associated with exit from paid employment due to retirement, unemployment or disability (ORs from 1.32 to 4.24). Adjustment for working conditions and lifestyle reduced the significant associations between ill health and exit from paid employment by 0-18.7%. Low education, obesity, low job control and effort-reward imbalance were associated with measures of ill health, but also risk factors for exit from paid employment after adjustment for ill health. Poor self-perceived health was strongly associated with exit from paid employment among European workers aged 50-63 years. This study suggests that the influence of ill health on exit from paid employment could be lessened by measures targeting obesity, problematic alcohol use, job control and effort-reward balance.

49 CFR 238.113 - Emergency window exits.

Science.gov (United States)

2010-10-01

..., electrical locker, or kitchen); and (B) There are no more than eight seats in the seating area. (4) Cars with...), a bathroom, kitchen, or locomotive cab is not considered a “compartment.” (b) Ease of operability. On or after November 8, 1999, each emergency window exit shall be designed to permit rapid and easy...

Factors Affecting Success in the Professional Entry Exam for Accountants in Brazil

Science.gov (United States)

Lima Rodrigues, Lúcia; Pinho, Carlos; Bugarim, Maria Clara; Craig, Russell; Machado, Diego

2018-01-01

This paper explores factors that have affected the success of candidates in the professional entry exam conducted by Brazil's Federal Council of Accounting. We analyse results of 18,948 candidates who sat for the exam in 2012, using a logistic regression model and the key indicators used by government to monitor the performance of higher education…

Passing the ITIL V3 intermediate exams the study guide

CERN Document Server

Bernard, Pierre

2011-01-01

This book helps people prepare for the ITIL® Intermediate qualification exams. It contains tips for selecting the appropriate course, preparation and finally what trainers and examiners expect you to achieve during pre-exam training sessions. Additionally, this book covers tips on reading and understanding the syllabi, scenarios, supplemental information, and sample question and the answers.Written by a respected ITIL trainer and reviewed by other global professionals this unique work provides clear and concise guidance for all those seeking to build on the ITIL training they have received at

CompTIA Network+ Certification Study Guide, Exam N10-004

CERN Document Server

Shimonski, Robert

2009-01-01

CompTIA's Network+ certification is a globally-recognized, vendor neutral exam that has helped over 235,000 IT professionals reach further and higher in their careers. The 2009 Network+ exam (N10-004) is a major update with more focus on security and wireless aspects of networking. Our new study guide has been updated accordingly with focus on network, systems, and WAN security and complete coverage of today's wireless networking standards. As always this companion covers the core Network+ material including basic design principles, management and operation of a network infrastructure, and tes

NAD+ Is a Food Component That Promotes Exit from Dauer Diapause in Caenorhabditis elegans.

Directory of Open Access Journals (Sweden)

Mykola Mylenko

Full Text Available The free-living soil nematode Caenorhabditis elegans adapts its development to the availability of food. When food is scarce and population density is high, worms enter a developmentally arrested non-feeding diapause stage specialized for long-term survival called the dauer larva. When food becomes available, they exit from the dauer stage, resume growth and reproduction. It has been postulated that compound(s present in food, referred to as the "food signal", promote exit from the dauer stage. In this study, we have identified NAD+ as a component of bacterial extract that promotes dauer exit. NAD+, when dissolved in alkaline medium, causes opening of the mouth and ingestion of food. We also show that to initiate exit from the dauer stage in response to NAD+ worms require production of serotonin. Thus, C. elegans can use redox cofactors produced by dietary organisms to sense food.

Exit, voice, and loyalty in the Italian public health service: macroeconomic and corporate implications.

Science.gov (United States)

Ippolito, Adelaide; Impagliazzo, Cira; Zoccoli, Paola

2013-01-01

The paper analyses how customers of public health organizations can express their dissatisfaction for the services offered to them. The main aim is to evaluate the effects that possible dissatisfaction of Italian public health service customers can have on public health organizations. We adopted the methodological scheme developed by Hirschman with exit, voice, and loyalty, considering the macroeconomic and corporate implications that it causes for Italian public health organizations. The study investigated the effects developed by exit of the patients on the system of financing of local health authorities considering both the corporate level of analysis and the macroeconomic level. As a result, local health authority management is encouraged to pay greater attention to the exit phenomena through the adoption of tools that promote loyalty, such as the promotion of voice, even if exit is not promoting, at a macroeconomic level, considerable attention to this phenomenon.

Exit, Voice, and Loyalty in the Italian Public Health Service: Macroeconomic and Corporate Implications

Science.gov (United States)

Impagliazzo, Cira; Zoccoli, Paola

2013-01-01

The paper analyses how customers of public health organizations can express their dissatisfaction for the services offered to them. The main aim is to evaluate the effects that possible dissatisfaction of Italian public health service customers can have on public health organizations. We adopted the methodological scheme developed by Hirschman with exit, voice, and loyalty, considering the macroeconomic and corporate implications that it causes for Italian public health organizations. The study investigated the effects developed by exit of the patients on the system of financing of local health authorities considering both the corporate level of analysis and the macroeconomic level. As a result, local health authority management is encouraged to pay greater attention to the exit phenomena through the adoption of tools that promote loyalty, such as the promotion of voice, even if exit is not promoting, at a macroeconomic level, considerable attention to this phenomenon. PMID:24348148

TH-AB-207A-03: Skin Dose to Patients Receiving Multiple CTA and CT Exams of the Head

International Nuclear Information System (INIS)

Nawfel, RD; Young, G

2016-01-01

Purpose: To measure patient skin dose from CT angiography (CTA) and CT exams of the head, and determine if patients having multiple exams could receive cumulative doses that approach or exceed deterministic thresholds. Methods: This study was HIPAA compliant and conducted with IRB approval. Patient skin doses were measured over a 4 month period using nanoDot OSL dosimeters placed on the head of 52 patients for two CT scanners. On each scanner, 26 patients received CT exams (scanner 1: 10 females, 16 males, mean age 64.2 years; scanner 2: 18 females, 8 males, mean age 61.2 years). CT exam dose metrics, CTDIvol and dose-length product (DLP) were recorded for each exam. Additionally, skin dose was measured on an acrylic skull phantom in each scanner and on a neuro-interventional imaging system using clinical protocols. Measured dose data was used to estimate peak skin dose (PSD) for 4 patients receiving multiple exams including CTA, head CT, and cerebral angiography. Results: For scanner 1, the mean PSD for CTA exams (98.9 ± 5.3 mGy) and for routine head CT exams (39.2 ± 3.7 mGy) agreed reasonably well with the PSD measured on the phantom, 105.4 mGy and 40.0 mGy, respectively. Similarly for scanner 2, the mean PSD for CTA exams (98.8 ± 7.4 mGy) and for routine head CT exams (42.9 ± 9.4 mGy) compared well with phantom measurements, 95.2 mGy and 37.6 mGy, respectively. In addition, the mean PSD was comparable between scanners for corresponding patient exams, CTA and routine head CT respectively. PSD estimates ranged from 1.9 – 4.5 Gy among 4 patients receiving multiple exams. Conclusion: Patients having several exams including both CTA and routine head CT may receive cumulative doses approaching or exceeding the threshold for single dose deterministic effects.

TH-AB-207A-03: Skin Dose to Patients Receiving Multiple CTA and CT Exams of the Head

Energy Technology Data Exchange (ETDEWEB)

Nawfel, RD; Young, G [Brigham & Women’s Hospital, Boston, MA (United States)

2016-06-15

Purpose: To measure patient skin dose from CT angiography (CTA) and CT exams of the head, and determine if patients having multiple exams could receive cumulative doses that approach or exceed deterministic thresholds. Methods: This study was HIPAA compliant and conducted with IRB approval. Patient skin doses were measured over a 4 month period using nanoDot OSL dosimeters placed on the head of 52 patients for two CT scanners. On each scanner, 26 patients received CT exams (scanner 1: 10 females, 16 males, mean age 64.2 years; scanner 2: 18 females, 8 males, mean age 61.2 years). CT exam dose metrics, CTDIvol and dose-length product (DLP) were recorded for each exam. Additionally, skin dose was measured on an acrylic skull phantom in each scanner and on a neuro-interventional imaging system using clinical protocols. Measured dose data was used to estimate peak skin dose (PSD) for 4 patients receiving multiple exams including CTA, head CT, and cerebral angiography. Results: For scanner 1, the mean PSD for CTA exams (98.9 ± 5.3 mGy) and for routine head CT exams (39.2 ± 3.7 mGy) agreed reasonably well with the PSD measured on the phantom, 105.4 mGy and 40.0 mGy, respectively. Similarly for scanner 2, the mean PSD for CTA exams (98.8 ± 7.4 mGy) and for routine head CT exams (42.9 ± 9.4 mGy) compared well with phantom measurements, 95.2 mGy and 37.6 mGy, respectively. In addition, the mean PSD was comparable between scanners for corresponding patient exams, CTA and routine head CT respectively. PSD estimates ranged from 1.9 – 4.5 Gy among 4 patients receiving multiple exams. Conclusion: Patients having several exams including both CTA and routine head CT may receive cumulative doses approaching or exceeding the threshold for single dose deterministic effects.

Cisco CCNA/CCENT Exam 640-802, 640-822, 640-816 Preparation Kit With Cisco Router Simulations

CERN Document Server

Liu, Dale

2009-01-01

Three exams, two certifications, one complete Cisco training solution for networking professionals! .. .. The CCNA exam is an entry-level IT certification from Cisco Systems for professionals installing and maintaining route and switched networks. The current exam material covers networking concepts along with new and updated content on network security fundamentals and the basics of wireless networking. .. .. This book can be used as a study guide for either track you choose to receive your CCNA – the single exam, 640-802 or the combined 640-822 and 640-816, and for the CCENT certification wh

Does Missing Classes Decelerate Student Exam Performance Progress? Empirical Evidence and Policy Implications

Science.gov (United States)

Lin, Tin-Chun

2014-01-01

A total of 389 business students in undergraduate introductory microeconomics classes in spring 2007, 2009, and 2011, and fall 2012 participated in an exam performance progress study. Empirical evidence suggested that missing classes decelerates and hampers high-performing students' exam performance progress. Nevertheless, the evidence does…

The relationship of high school graduation exams to graduation rates and SAT scores.

Directory of Open Access Journals (Sweden)

Gregory J. Marchant

2005-01-01

Full Text Available The current study examined the effect of high school graduation exams on states' graduation rates, states' aggregated SAT scores, and individual students' SAT scores. Three data sources were used: One source identified states requiring a standardized test for graduation; the NCES provided state aggregated data on graduation rates for the class of 2002; and the College Board provided its 2001 SAT database for all test-takers. After controlling for students' demographic characteristics (e.g., race, family education and income, GPA and class rank, regression analyses revealed that states requiring graduation exams had lower graduation rates and lower SAT scores. Individually, students from states requiring a graduation exam performed more poorly on the SAT than did students from states not requiring an exam. The impact of high stakes tests' on students' motivation to stay in school and on the teaching of critical thinking skills (tested by the SAT are discussed.

Ecologies of Ideologies : Explaining Party Entry and Exit in West-European Parliaments, 1945-2013

NARCIS (Netherlands)

van de Wardt, M.; Berkhout, J.; Vermeulen, F.

2017-01-01

This study introduces a population-ecological approach to the entry and exit of political parties. A primary proposition of population ecology is that organizational entry and exit depends on the number of organizations already present: that is, density. We propose that political parties mainly

Sampling for Patient Exit Interviews: Assessment of Methods Using Mathematical Derivation and Computer Simulations.

Science.gov (United States)

Geldsetzer, Pascal; Fink, Günther; Vaikath, Maria; Bärnighausen, Till

2018-02-01

(1) To evaluate the operational efficiency of various sampling methods for patient exit interviews; (2) to discuss under what circumstances each method yields an unbiased sample; and (3) to propose a new, operationally efficient, and unbiased sampling method. Literature review, mathematical derivation, and Monte Carlo simulations. Our simulations show that in patient exit interviews it is most operationally efficient if the interviewer, after completing an interview, selects the next patient exiting the clinical consultation. We demonstrate mathematically that this method yields a biased sample: patients who spend a longer time with the clinician are overrepresented. This bias can be removed by selecting the next patient who enters, rather than exits, the consultation room. We show that this sampling method is operationally more efficient than alternative methods (systematic and simple random sampling) in most primary health care settings. Under the assumption that the order in which patients enter the consultation room is unrelated to the length of time spent with the clinician and the interviewer, selecting the next patient entering the consultation room tends to be the operationally most efficient unbiased sampling method for patient exit interviews. © 2016 The Authors. Health Services Research published by Wiley Periodicals, Inc. on behalf of Health Research and Educational Trust.

University mathematics teachers' views on the required reasoning in calculus exams

OpenAIRE

Bergqvist, Ewa

2012-01-01

Students often use imitative reasoning, i.e. copy algorithms or recall facts, when solving mathematical tasks. Research show that this type of imitative reasoning might weaken the students' understanding of the underlying mathematical concepts. In a previous study, the author classified tasks from 16 final exams from introductory calculus courses at Swedish universities. The results showed that it was possible to pass 15 of the exams, and solve most of the tasks, using imitative reasoning. Th...

Evaluation of virtual environment as a form of interactive resuscitation exam

Science.gov (United States)

Leszczyński, Piotr; Charuta, Anna; Kołodziejczak, Barbara; Roszak, Magdalena

2017-10-01

There is scientific evidence confirming the effectiveness of e-learning within resuscitation, however, there is not enough research on modern examination techniques within the scope. The aim of the pilot research is to compare the exam results in the field of Advanced Life Support in a traditional (paper) and interactive (computer) form as well as to evaluate satisfaction of the participants. A survey was conducted which meant to evaluate satisfaction of exam participants. Statistical analysis of the collected data was conducted at a significance level of α = 0.05 using STATISTICS v. 12. Final results of the traditional exam (67.5% ± 15.8%) differed significantly (p test. Significant differences between the results of a traditional test and the one supported by Computer Based Learning system showed the possibility of achieving a more detailed competence verification in the field of resuscitation thanks to interactive solutions.

Dose measurement in periapical radiographic exams using dosemeter pen: a look at the radioprotection

Energy Technology Data Exchange (ETDEWEB)

Oliveira, Renato; Ferreira, Vanessa, E-mail: vanessamachado@ufmg.br [Curso Superior de Tecnologia em Radiologia. Faculdade de Medicina. Universidade Federal de Minas Gerais, Belo Horizonte, MG (Brazil); Pereira, Claubia; Oliveira, Arno H.; Veloso, M.A.F., E-mail: gbarros@nuclear.ufmg.br, E-mail: claubia@nuclear.ufmg.br, E-mail: heeren@nuclear.ufmg.br, E-mail: Dora@nuclear.ufmg.br [Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, MG (Brazil). Dept. de Engenharia Nuclear

2011-07-01

The use of radiology has been a large increase with the crescent accessibility to dental care, orthodontics and aesthetic. Besides the increase in the number of exams, there was an increase in radiation dose during dental exams such as computed tomography. The objective of this work is to evaluate the radiation dose to which the patient is subjected in a peri apical dental radiography. The dose values were measured with a dosimeter pen during radiographs in real exams peri apical with the X-ray equipment Timex 70 C Gnatus. During the exams realization, was maintained, in the holder, the dosimeter pen near to the region of interest. The values collected were recorded in dosimeter pen. These values were compared with the reference doses of the Portaria 453 of ANVISA, this procedure allows to verify if the recommended dose limits for this exam are being respected. These data indicates if the used equipment is calibrated and in good condition of use. It was performed a comparison between the obtained experimental dose values and the values found from computer simulation with the code MCNPX 2.6.0. (author)

Dose measurement in periapical radiographic exams using dosemeter pen: a look at the radioprotection

International Nuclear Information System (INIS)

Oliveira, Renato; Ferreira, Vanessa; Pereira, Claubia; Oliveira, Arno H.; Veloso, M.A.F.

2011-01-01

The use of radiology has been a large increase with the crescent accessibility to dental care, orthodontics and aesthetic. Besides the increase in the number of exams, there was an increase in radiation dose during dental exams such as computed tomography. The objective of this work is to evaluate the radiation dose to which the patient is subjected in a peri apical dental radiography. The dose values were measured with a dosimeter pen during radiographs in real exams peri apical with the X-ray equipment Timex 70 C Gnatus. During the exams realization, was maintained, in the holder, the dosimeter pen near to the region of interest. The values collected were recorded in dosimeter pen. These values were compared with the reference doses of the Portaria 453 of ANVISA, this procedure allows to verify if the recommended dose limits for this exam are being respected. These data indicates if the used equipment is calibrated and in good condition of use. It was performed a comparison between the obtained experimental dose values and the values found from computer simulation with the code MCNPX 2.6.0. (author)

Correlação entre o exame clínico, a mamografia e a ultra-sonografia com o exame anatomopatológico na determinação do tamanho tumoral no câncer de mama Correlation between clinical examination, mammography and ultrasonography with histopathological exam in the determination of tumor size in breast cancer

Directory of Open Access Journals (Sweden)

Fernanda Monteiro de Paula Siqueira

2008-03-01

Full Text Available OBJETIVO: avaliar qual o melhor método entre o exame clínico (EC, a mamografia (MMG e a ultra-sonografia (US na determinação pré-operatória do tamanho tumoral no câncer de mama, tendo como referência o exame anatomopatológico. MÉTODOS: foram incluídas neste estudo 184 pacientes com lesões mamárias detectadas por MMG e US, palpáveis ou não, e que foram submetidas a ressecção cirúrgica do tumor, com diagnóstico histopatológico de câncer de mama. O maior diâmetro tumoral foi avaliado por EC, MMG e US por um mesmo examinador, e a medida obtida por cada método foi correlacionada com o diâmetro máximo obtido pelo exame anatomopatológico. A análise comparativa foi feita por meio do coeficiente de correlação de Pearson (r. RESULTADOS: o coeficiente de correlação de Pearson encontrado entre o exame anatomopatológico e o EC foi 0,8; entre o exame anatomopatológico e a MMG foi 0,7 e entre o exame anatomopatológico e a US foi 0,7 (pPURPOSE: to evaluate which method is the best to determine pre-surgically the size of breast cancer: clinical examination, mammography or ultrasonography, using as a reference the anatomopathological exam. METHODS: this study has included 184 patients with palpable-or-not breast lesions, detected by mammography and ultrasonography, that were submitted to surgical resection of the tumor, with histopathological diagnosis of breast cancer. The same examiner evaluated clinically the largest tumoral diameter, through clinical examination, mammography and ultrasonography, and the measurements obtained by each method were correlated with the maximum diameter obtained by the anatomopathological exam. The comparative analysis has been done by Pearson's correlation coefficient (r. RESULTS: Pearson's correlation coefficient between the anatomopathological and the clinical exams was 0.8; between the anatomopathological exam and the mammography, 0.7; and between anatomopathological exam and ultrasonography 0

School Quality, Exam Performance and Career Choice

NARCIS (Netherlands)

Dustmann, C.; Rajah, N.; van Soest, A.H.O.

1998-01-01

The purpose of this paper is to examine the effects of school quality on performance in national exams and the career decision at age 16. We use micro data for the UK, which provides a rich set of variables on parental background, previous achievements, and community variables. We find that,

The exit-time problem for a Markov jump process

Science.gov (United States)

Burch, N.; D'Elia, M.; Lehoucq, R. B.

2014-12-01

The purpose of this paper is to consider the exit-time problem for a finite-range Markov jump process, i.e, the distance the particle can jump is bounded independent of its location. Such jump diffusions are expedient models for anomalous transport exhibiting super-diffusion or nonstandard normal diffusion. We refer to the associated deterministic equation as a volume-constrained nonlocal diffusion equation. The volume constraint is the nonlocal analogue of a boundary condition necessary to demonstrate that the nonlocal diffusion equation is well-posed and is consistent with the jump process. A critical aspect of the analysis is a variational formulation and a recently developed nonlocal vector calculus. This calculus allows us to pose nonlocal backward and forward Kolmogorov equations, the former equation granting the various moments of the exit-time distribution.

A history and overview of the certification exam for medical dosimetrists

International Nuclear Information System (INIS)

Pusey, Damien; Smith, Lisette; Zeman, Elaine M.; Adams, Robert

2005-01-01

During the last century, the creation and implementation of board certification has had a powerful impact on the medical community. Board certification has helped to shape the scope and practice of medical professionals and the care they provide, as well as to influence the way the health insurance industry sets standards for reimbursement. One profession that offers board certification to its members is medical dosimetry. The Medical Dosimetrist Certification Board exam has been administered since 1988 and its content covers a broad spectrum of information from the radiation therapy sciences. The exam has strict application requirements and is rather difficult to pass. Those who pass the exam can then call themselves Certified Medical Dosimetrists. For data purposes of this study, several members of the dosimetry community were solicited to participate in a survey regarding the exam's content and history, and to provide relevant statistical data. Currently 2,177 medical dosimetrists are board certified, with an additional 1,500 estimated to be working without certification. Although board certification is not currently required to practice medical dosimetry, new legislation known as the CARE Bill could change this. The CARE Bill, if passed, would mandate nationwide compulsory licensure and/or certification for medical dosimetrists and other medical professionals who want to work in radiation-related health care. Health maintenance organizations and other insurance carriers may likewise require certification for reimbursement purposes

Test anxiety levels and related factors: students preparing for university exams.

Science.gov (United States)

Kurt, Ayse Sonay; Balci, Serap; Kose, Dilek

2014-11-01

To assess test anxiety levels and related factors among students preparing for university exams. The descriptive, cross-sectional study was conducted at Istanbul University, Turkey, and comprised students preparing for exams in two private courses for the 2010-11 academic year. Data was collected via an original questionnaire and the Test Anxiety Inventory. SPSS 20 was used for statistical analyses. Of the 1250 students who qualified for the study, the final sample size was 376 (30%). Of them, 210 (55.9%) were females, and 154 (41%) were 18 years old. Students' mean Test Anxiety Inventory scores were 39.44±11.34. Female students' overall test anxiety scores and mean emotionality subscale score were significantly higher than those of their male counterparts. Students whose mothers had an educational attainment between primary school n=170 (45.2%) and a high school diploma n=184 (48.9%), as well as those with four or more siblings n=49 (15%), had significantly higher mean overall Test Anxiety Inventory scores. Among other things, test anxiety is influenced by maternal educational level, type of high school, number of exams, and number of siblings. Preparing a relaxed study environment for students, providing the family monetary or social support, and encouraging participation in social activities are recommendedto decreajb anxiety in students preparing for university exams.

Are tutor-students capable of writing good biochemistry exams?

Directory of Open Access Journals (Sweden)

Sé Alexandre B.

2004-05-01

Full Text Available In a previous article we described the relevance of student seminars for the learning process of appliedbiochemistry for medical and nutrition students (Hermes-Lima et al., Biochem. Mol.Biol.Educ. 30:30-34,2002. First semester students of a basic biochemistry course (BioBio are divided in 10 groupsof 5 members, and each group is assigned to a specic topic (diabetes, cholesterol, etc under thesupervision of a tutor-student. The tutors have already coursed BioBio and are currently undertakingan advanced biochemistry course. In order to evaluate the learning of applied biochemistry for BioBiostudents a true or false exam (TFE is performed. This exam is made of 50 questions (5 on eachtopic elaborated by the tutors under the supervision of the teacher. The TFE corresponds to 10percent of the grade of BioBio and focus on clinical and/or applied biochemistry situations. At theend of the exam, BioBio students were asked to share their opinions about TFEs (n = 401, from2001/1 to 2003/2. When asked to give a 0-to-4 score regarding (a the diculty level of the test,(b the technical quality and (c if the exam makes an appropriate evaluation of applied biochemistryknowledge, the scores were 2.9, 3.4 and 2.9, respectively. BioBio students were also asked if they ndvalid to be evaluated by a tutor-made exam and if they would like to participate in the making ofTFEs; 96 and 58 percent answered yes, respectively.In another survey, we interviewed former BioBio students from the 2nd to the 7th semesters (n=95about TFEs (since 1999-1 regarding technical aspects, which included (1 clarity of questions, (2 levelof diculty, (3 clinical application and (4 thinking (as opposed to memorizing abilities demanded;the 0-to-4 scores were 3.1, 2.9, 2.6, and 2.5, respectively. Other four questions were on the validityof tutors writing TFEs and their capacity to perform such a task; the average score was 3.2. Oursurveys show the students good acceptance of the seminar system

X-Ray Exam: Lower Leg (Tibia and Fibula)

Science.gov (United States)

... Staying Safe Videos for Educators Search English Español X-Ray Exam: Lower Leg (Tibia and Fibula) KidsHealth / For ... Muscles, and Joints Broken Bones Getting an X-ray (Video) X-Ray (Video) View more Partner Message About Us ...

Probability evolution method for exit location distribution

Science.gov (United States)

Zhu, Jinjie; Chen, Zhen; Liu, Xianbin

2018-03-01

The exit problem in the framework of the large deviation theory has been a hot topic in the past few decades. The most probable escape path in the weak-noise limit has been clarified by the Freidlin-Wentzell action functional. However, noise in real physical systems cannot be arbitrarily small while noise with finite strength may induce nontrivial phenomena, such as noise-induced shift and noise-induced saddle-point avoidance. Traditional Monte Carlo simulation of noise-induced escape will take exponentially large time as noise approaches zero. The majority of the time is wasted on the uninteresting wandering around the attractors. In this paper, a new method is proposed to decrease the escape simulation time by an exponentially large factor by introducing a series of interfaces and by applying the reinjection on them. This method can be used to calculate the exit location distribution. It is verified by examining two classical examples and is compared with theoretical predictions. The results show that the method performs well for weak noise while may induce certain deviations for large noise. Finally, some possible ways to improve our method are discussed.

Histopathological detection of entry and exit holes in human skin wounds caused by firearms.

Science.gov (United States)

Baptista, Marcus Vinícius; d'Ávila, Solange C G P; d'Ávila, Antônio Miguel M P

2014-07-01

The judiciary needs forensic medicine to determine the difference between an entry hole and an exit hole in human skin caused by firearms for civilian use. This important information would be most useful if a practical and accurate method could be done with low-cost and minimal technological resources. Both macroscopic and microscopic analyses were performed on skin lesions caused by firearm projectiles, to establish histological features of 14 entry holes and 14 exit holes. Microscopically, in the abrasion area macroscopically observed, there were signs of burns (sub-epidermal cracks and keratinocyte necrosis) in the entrance holes in all cases. These signs were not found in three exit holes which showed an abrasion collar, nor in other exit holes. Some other microscopic features not found in every case were limited either to entry holes, such as cotton fibres, grease deposits, or tattooing in the dermis, or to exit holes, such as adipose tissue, bone or muscle tissue in the dermis. Coagulative necrosis of keratinocytes and sub-epidermal cracks are characteristic of entry holes. Despite the small sample size, it can be safely inferred that this is an important microscopic finding, among others less consistently found, to define an entry hole in questionable cases. Copyright © 2014 Elsevier Ltd and Faculty of Forensic and Legal Medicine. All rights reserved.

Do Resit Exams Promote Lower Investments of Study Time? Theory and Data from a Laboratory Study.

Science.gov (United States)

Nijenkamp, Rob; Nieuwenstein, Mark R; de Jong, Ritske; Lorist, Monicque M

2016-01-01

Although many educational institutions allow students to resit exams, a recently proposed mathematical model suggests that this could lead to a dramatic reduction in study-time investment, especially in rational students. In the current study, we present a modification of this model in which we included some well-justified assumptions about learning and performance on multiple-choice tests, and we tested its predictions in two experiments in which participants were asked to invest fictional study time for a fictional exam. Consistent with our model, the prospect of a resit exam was found to promote lower investments of study time for a first exam and this effect was stronger for participants scoring higher on the cognitive reflection test. We also found that the negative effect of resit exams on study-time investment was attenuated when access to the resit was made uncertain by making it probabilistic or dependent on obtaining a minimal, non-passing grade for the first attempt. Taken together, these results suggest that offering students resit exams may compromise the achievement of learning goals, and they raise the more general implication that second chances promote risky behavior.

WASHBACK OF THE ENGLISH SECTION OF COLLEGE ENTRANCE EXAM ON THE STUDENTS’ PRODUCTIVE AND RECEPTIVE SKILLS

Directory of Open Access Journals (Sweden)

Fitri Wulandari Wulandari

2016-09-01

Full Text Available Exam plays a powerful role in educational system and exerts significant washback onstudents’ learning. Washback, the impact of exams on education in general andlanguage examining in particular, has become a popular area of study withineducational research. This paper focuses on the washback effects of college entranceexam on students’ productive and receptive skills in STKIP MuhammadiyahPringsewu Lampung. The main concern of the study was to investigate the impact ofcollege entrance exam on productive and receptive language skills in STKIPMuhammadiyah Pringsewu Lampung. 53 first year students at English EducationDepartment in the academic year of 2015-2016 of STKIP Muhammadiyah PringsewuLampung attended the study. A 26-item questionnaire was designed and administeredto 53 students. The data were analyzed using statistical analysis including descriptivestatistics (frequency, percentage, mean, and standard deviation. It has been found outthat the exam has some negative effects on students’ language productive andreceptive skills on the first year students at English Education Department of STKIPMuhammadiyah Pringsewu Lampung. Some changes to exam that might be gratefulare discussed in the last section of the paper.Keywords: washback effect, college entrance exam, students’ productive skills

Exit and Failure of Credit Unions in Brazil: A Risk Analysis

Directory of Open Access Journals (Sweden)

Flávio Leonel de Carvalho

2015-04-01

Full Text Available This study aims to investigate the factors that affect the market exit of Brazilian singular credit unions from 1995 to 2009; it also identifies and lists the determinants of various types of market exits and analyzes whether profitability is a significant factor for credit union survival. This study was conducted with accounting data provided by the Central Bank of Brazil, which derives only from individual cooperatives, i.e. singular credit unions. Quarterly financial statements from these credit unions that were active from 1995 to the second quarter of 2009 were employed, totaling 71,325 observations for 1,929 credit unions. Based on survival and the model of competing risks (such as the Cox, Exponential, Weibull, Gompertz, and Competing Risk models, the results show that there is no statistical evidence to ensure a correlation between profitability and credit union survival. The results also suggest that the size of credit unions plays a key role in their survival and longevity and that their funding and investment management are related to their survival and risk of market exit. In conclusion, the results confirm the initial idea that the duality inherent to credit unions - cooperative principles versus economic efficiency - might influence the stability, survival, and longevity of these institutions. Such results may also imply that a credit union embracing the rationale of a private bank will become more estranged from its members, something which will hinder its future operations and increase the likelihood of its exit from the market.

Pilot study: relative dose of the TLD, OSL and Radiochromic film applied in CT exams dosimetry

International Nuclear Information System (INIS)

Kikuti, C.F.; Maia, R.S.I.; Romano, R.F.T.; Daros, K. A.C.

2015-01-01

At DDI/UNIFESP, the abdomen and chest CT exams correspond to 38% of the exams, becoming the focus of studies. The aim of this study is to assess the relative dose using TLDs, OSLs and RF for the evaluation of the dose distribution in the skin in abdomen CT exams. The simulation of the CT exam was performed in an anthropomorphic phantom, using a CT scanner Philips, Brilliance/64 and TLDs, OSLs and RF fixed along the sagittal axis of the phantom. The OSLs showed similar performance to the TLDs and RF shows low accuracy, resulting in an average value (0.927±0.022). (author)

Pilot study: relative dose of the TLD, OSL and Radiochromic film applied in CT exams dosimetry

Energy Technology Data Exchange (ETDEWEB)

Kikuti, C.F. [Universidade Federal do Mato Grosso do Sul (UFMS), Campo Grande, MS (Brazil). Hospital Universitario Maria Aparecida Pedrossian; Maia, R.S.I.; Romano, R.F.T.; Daros, K. A.C., E-mail: daros.kellen@unifesp.br [Universidade Federal de Sao Paulo (UNIFESP), Sao Paulo, SP (Brazil). Escola Paulista de Medicina. Departamento de Diagnostico por Imagem

2015-07-01

At DDI/UNIFESP, the abdomen and chest CT exams correspond to 38% of the exams, becoming the focus of studies. The aim of this study is to assess the relative dose using TLDs, OSLs and RF for the evaluation of the dose distribution in the skin in abdomen CT exams. The simulation of the CT exam was performed in an anthropomorphic phantom, using a CT scanner Philips, Brilliance/64 and TLDs, OSLs and RF fixed along the sagittal axis of the phantom. The OSLs showed similar performance to the TLDs and RF shows low accuracy, resulting in an average value (0.927±0.022). (author)

Fast Water Transport in CNTs: length dependence and entrane/exit effects

DEFF Research Database (Denmark)

Walther, Jens Honore; Koumoutsakos, Petros

Superfast water transport in carbon nanotube (CNT) membranes has been reported in experimental studies. We use Molecular Dynamics simulations to elucidate the mechanisms of water entry, exit and transport in 2nm-diameter hydrophobic CNTs embedded in a hydrophilic membrane matrix. We demonstrate......, for the first time, that under imposed pressures of the order of 1 bar, water entry into the CNT cavity and exit from the CNT end, can occur only on pre-wetted membranes. We conduct large scale simulations for up to 500nm long CNTs and observe a previously unseen dependence of the flow enhancement rates...

Forthcoming EU Rules on Exit Taxes for Companies

NARCIS (Netherlands)

van de Streek, J.

2015-01-01

Rules on exit taxation for the EU as a whole are under construction at European Council level. Formally, the work on this piece of EU tax legislation is part of the controversial Common Consolidated Corporate Tax Base (CCCTB). But it is also thinkable that even without a CCCTB being established in

Including an Exam P/1 Prep Course in a Growing Actuarial Science Program

Science.gov (United States)

Wakefield, Thomas P.

2014-01-01

The purpose of this article is to describe the actuarial science program at our university and the development of a course to enhance students' problem solving skills while preparing them for Exam P/1 of the Society of Actuaries (SOA) and the Casualty Actuary Society (CAS). The Exam P/1 prep course, formally titled Mathematical Foundations of…

CompTIA Linux+ Complete Study Guide (Exams LX0-101 and LX0-102)

CERN Document Server

Smith, Roderick W

2010-01-01

Prepare for CompTIA's Linux+ Exams. As the Linux server and desktop markets continue to grow, so does the need for qualified Linux administrators. CompTIA's Linux+ certification (Exams LX0-101 and LX0-102) includes the very latest enhancements to the popular open source operating system. This detailed guide not only covers all key exam topics—such as using Linux command-line tools, understanding the boot process and scripts, managing files and file systems, managing system security, and much more—it also builds your practical Linux skills with real-world examples. Inside, you'll find:. Full co

CCNA routing and switching study guide exams 100-101, 200-101, and 200-120

CERN Document Server

Lammle, Todd

2013-01-01

Prepare for the new CCNA exams with this Todd Lammle study guide Cisco author, speaker, and trainer Todd Lammle is considered the authority on all things networking, and his books have sold almost a million copies worldwide. This all-purpose CCNA study guide methodically covers all the objectives of the ICND1 (100-101) and ICND2 (200-101) exams as well as providing additional insight for those taking CCNA Composite (200-120) exam. It thoroughly examines operation of IP data networks, LAN switching technologies, IP addressing (IPv4/IPv6), IP routing technologies, IP services, network device s

Head First PMP A Brain-Friendly Guide to Passing the Project Management Professional Exam

CERN Document Server

Greene, Jennifer

2009-01-01

Learn the latest principles and certification objectives in The PMBOK Guide, Fourth Edition, in a unique and inspiring way with Head First PMP . The second edition of this book helps you prepare for the PMP certification exam using a visually rich format designed for the way your brain works. You'll find a full-length sample exam included inside the book. More than just proof of passing a test, a PMP certification means that you have the knowledge to solve most common project problems. But studying for a difficult four-hour exam on project management isn't easy, even for experienced project

Analysis of placenta vascularization in patients with uterine altered artery Doppler flow velocity exams.

Science.gov (United States)

Gilio, Daniel Bruno; Miranda Corrêa, Rosana Rosa; Souza de Oliveira Guimarães, Camila; Peres, Luiz Cesar; Marques Salge, Ana Karina; Cavellani, Camila Lourencini; de Paula Antunes Teixeira, Vicente; Costa da Cunha Castro, Eumenia

2009-08-01

One of the frequent questions in obstetric practice is to determine placental vascular changes that may account for abnormal Doppler flow velocity alterations in maternal uterine vessels from women and fetuses without pregnancy pathology. A retrospective morphometric study was realized using 27 placentas from patients submitted for Doppler flow velocity exam during pregnancy. The placentas were morphologically examined using hematoxylin-eosin staining. Measurements of villi were made with the use of a video camera coupled to a common light microscope and a computer with automatic image analyzing software. Of the 27 placentas, 13 (48%) were of patients showing unaltered Doppler and 14 (52%) showing altered Doppler. The number of stem villi vessels was significantly larger in the placentas of patients with Doppler exam alterations (P = 0.003). This group also presented greater stem villi vessel thickness, although without significant difference. The number of intermediary and terminal villi vessels was greater in the placentas of patients with altered Doppler exams (P < 0.001), and a greater terminal villi area was observed in these cases (P < 0.001). The morphological proof that uterine artery Doppler flow velocity exam alterations are associated with placental vascular alterations demonstrates the importance of this exam during prenatal care, even in the absence of maternal-fetal alterations.

Customer Protest: Exit, Voice or Negative Word of Mouth

Directory of Open Access Journals (Sweden)

Solvang, B. K.

2008-01-01

Full Text Available Of the three forms of protest the propensity of word of mouth (WOM seems to be the most common, and the most exclusive form of protest seems to be exit. The propensity for voice lies in between. The costs linked to voice influence the propensity for WOM. The customers seem to do an evaluation between the three forms of protest, yet the rational picture of the customers should be moderated.Leaders should improve their treatment of the customers making complaints. The more they can treat customer complaints in an orderly and nice way the less informal negative word of mouth activity they will experience and they will reduce the exit propensity and lead the customers to the complain organisation. They should also ensure that their customers feel they get equal treatment by the staff.

The molecular chaperone Hsp90 is required for cell cycle exit in Drosophila melanogaster.

Directory of Open Access Journals (Sweden)

Jennifer L Bandura

Full Text Available The coordination of cell proliferation and differentiation is crucial for proper development. In particular, robust mechanisms exist to ensure that cells permanently exit the cell cycle upon terminal differentiation, and these include restraining the activities of both the E2F/DP transcription factor and Cyclin/Cdk kinases. However, the full complement of mechanisms necessary to restrain E2F/DP and Cyclin/Cdk activities in differentiating cells are not known. Here, we have performed a genetic screen in Drosophila melanogaster, designed to identify genes required for cell cycle exit. This screen utilized a PCNA-miniwhite(+ reporter that is highly E2F-responsive and results in a darker red eye color when crossed into genetic backgrounds that delay cell cycle exit. Mutation of Hsp83, the Drosophila homolog of mammalian Hsp90, results in increased E2F-dependent transcription and ectopic cell proliferation in pupal tissues at a time when neighboring wild-type cells are postmitotic. Further, these Hsp83 mutant cells have increased Cyclin/Cdk activity and accumulate proteins normally targeted for proteolysis by the anaphase-promoting complex/cyclosome (APC/C, suggesting that APC/C function is inhibited. Indeed, reducing the gene dosage of an inhibitor of Cdh1/Fzr, an activating subunit of the APC/C that is required for timely cell cycle exit, can genetically suppress the Hsp83 cell cycle exit phenotype. Based on these data, we propose that Cdh1/Fzr is a client protein of Hsp83. Our results reveal that Hsp83 plays a heretofore unappreciated role in promoting APC/C function during cell cycle exit and suggest a mechanism by which Hsp90 inhibition could promote genomic instability and carcinogenesis.

The molecular chaperone Hsp90 is required for cell cycle exit in Drosophila melanogaster.

Science.gov (United States)

Bandura, Jennifer L; Jiang, Huaqi; Nickerson, Derek W; Edgar, Bruce A

2013-01-01

The coordination of cell proliferation and differentiation is crucial for proper development. In particular, robust mechanisms exist to ensure that cells permanently exit the cell cycle upon terminal differentiation, and these include restraining the activities of both the E2F/DP transcription factor and Cyclin/Cdk kinases. However, the full complement of mechanisms necessary to restrain E2F/DP and Cyclin/Cdk activities in differentiating cells are not known. Here, we have performed a genetic screen in Drosophila melanogaster, designed to identify genes required for cell cycle exit. This screen utilized a PCNA-miniwhite(+) reporter that is highly E2F-responsive and results in a darker red eye color when crossed into genetic backgrounds that delay cell cycle exit. Mutation of Hsp83, the Drosophila homolog of mammalian Hsp90, results in increased E2F-dependent transcription and ectopic cell proliferation in pupal tissues at a time when neighboring wild-type cells are postmitotic. Further, these Hsp83 mutant cells have increased Cyclin/Cdk activity and accumulate proteins normally targeted for proteolysis by the anaphase-promoting complex/cyclosome (APC/C), suggesting that APC/C function is inhibited. Indeed, reducing the gene dosage of an inhibitor of Cdh1/Fzr, an activating subunit of the APC/C that is required for timely cell cycle exit, can genetically suppress the Hsp83 cell cycle exit phenotype. Based on these data, we propose that Cdh1/Fzr is a client protein of Hsp83. Our results reveal that Hsp83 plays a heretofore unappreciated role in promoting APC/C function during cell cycle exit and suggest a mechanism by which Hsp90 inhibition could promote genomic instability and carcinogenesis.

Students’ engagement with a collaborative wiki tool predicts enhanced written exam performance

Directory of Open Access Journals (Sweden)

Tom Stafford

2014-08-01

Full Text Available We introduced voluntary wiki-based exercises to a long-running cognitive psychology course, part of the core curriculum for an undergraduate degree in psychology. Over 2 yearly cohorts, students who used the wiki more also scored higher on the final written exam. Using regression analysis, it is possible to account for students’ tendency to score well on other psychology exams, thus statistically removing some obvious candidate third factors, such as general talent or enthusiasm for psychology, which might drive this correlation. Such an analysis shows that both high- and low-grading students who used the wiki got higher scores on the final exam, with engaged wiki users scoring an average of an extra 5 percentage points. We offer an interpretation of the mechanisms of action in terms of the psychological literature on learning and memory.

Evaluation of a novel scoring and grading model for VP-based exams in postgraduate nurse education.

Science.gov (United States)

Forsberg, Elenita; Ziegert, Kristina; Hult, Håkan; Fors, Uno

2015-12-01

For Virtual Patient-based exams, several scoring and grading methods have been proposed, but none have yet been validated. The aim of this study was to evaluate a new scoring and grading model for VP-based exams in postgraduate paediatric nurse education. The same student group of 19 students performed a VP-based exam in three consecutive courses. When using the scoring and grading assessment model, which contains a deduction system for unnecessary or unwanted actions, a progression was found in the three courses: 53% of the students passed the first exam, 63% the second and 84% passed the final exam. The most common reason for deduction of points was due to students asking too many interview questions or ordering too many laboratory tests. The results showed that the new scoring model made it possible to judge the students' clinical reasoning process as well as their progress. Copyright © 2015 Elsevier Ltd. All rights reserved.

Spanish-English Verbatim Translation Exam. Final Report.

Science.gov (United States)

Stansfield, Charles W.; And Others

The development and validation of the Spanish-English Verbatim Translation Exam (SEVTE) is described. The test is for use by the Federal Bureau of Investigation (FBI) in the selection of applicants for the positions of Language Specialist or Contract Linguist. The report is divided into eight sections. Section 1 describes the need for the test,…

Chapter 9: Questions from CNEN specific exams

Energy Technology Data Exchange (ETDEWEB)

NONE

2018-04-01

The following are real questions from CNEN specific exams for obtaining the certification of RSO for gamma irradiators. These are questions that require essay answers, that are interpretative ones and therefore that may accept more than one interpretation, therefore more than one answer. For this reason, suggestions of answers will be presented in the second part of this chapter.

Chapter 9: Questions from CNEN specific exams

International Nuclear Information System (INIS)

2018-01-01

The following are real questions from CNEN specific exams for obtaining the certification of RSO for gamma irradiators. These are questions that require essay answers, that are interpretative ones and therefore that may accept more than one interpretation, therefore more than one answer. For this reason, suggestions of answers will be presented in the second part of this chapter

What grading can tell about a course - and it's exam

DEFF Research Database (Denmark)

Christiansen, Thomas Bøhm

2004-01-01

The purpose of this article is to illustrate how the data from grading students in a course can give valuable feedback to 1) the effectiveness and efficiency of the exam and 2) if there are aspects of the learning process that need attention. Before investigating three propositions, the article...... briefly describes a newly-developed course in Operations Management at the Technical University of Denmark. Since the introduction it has increased the number of students by more than 20% annually. The findings are that male students get significantly higher grades than females, and that a certain part...... of the exam is not sufficiently difficult. These findings suggest that improvements should be made....

Flexible Generation of E-Learning Exams in R: Moodle Quizzes, OLAT Assessments, and Beyond

Directory of Open Access Journals (Sweden)

Achim Zeileis

2014-06-01

Full Text Available The capabilities of the package exams for automatic generation of (statistical exams in R are extended by adding support for learning management systems: As in earlier versions of the package exam generation is still based on separate Sweave ?les for each exercise but rather than just producing di?erent types of PDF output ?les, the package can now render the same exercises into a wide variety of output formats. These include HTML (with various options for displaying mathematical content and XML speci?cations for online exams in learning management systems such as Moodle or OLAT. This ?exibility is accomplished by a new modular and extensible design of the package that allows for reading all weaved exercises into R and managing associated supplementary ?les (such as graphics or data ?les. The manuscript discusses the readily available user interfaces, the design of the underlying infrastructure, and how new functionality can be built on top of the existing tools.

45 CFR 670.34 - Entry and exit ports.

Science.gov (United States)

2010-10-01

... ANTARCTIC ANIMALS AND PLANTS Import Into and Export From the United States § 670.34 Entry and exit ports. (a) Any native mammal, native bird, or native plants taken within Antarctica that are imported into or... Orleans, Louisiana. (7) New York, New York. (8) Seattle, Washington. (9) Dallas/Fort Worth, Texas. (10...

Does China¡¯s National College Entrance Exam Effectively Evaluate Applicants?

OpenAIRE

Wei Hu; Feng Li; Li Gan

2014-01-01

Based on micro-level student data from one Chinese academic institution, we study the validity of the national college entrance exam from the perspective of student performance in college and employment prospects after graduation. We find that the current college entrance exam could reflect the students¡¯ learning ability to a certain degree, providing a relatively valid evaluation. Demonstration of well-rounded development ability should be an important factor in the evaluation system. Based...

An algorithm for calculating exam quality as a basis for performance-based allocation of funds at medical schools.

Science.gov (United States)

Kirschstein, Timo; Wolters, Alexander; Lenz, Jan-Hendrik; Fröhlich, Susanne; Hakenberg, Oliver; Kundt, Günther; Darmüntzel, Martin; Hecker, Michael; Altiner, Attila; Müller-Hilke, Brigitte

2016-01-01

The amendment of the Medical Licensing Act (ÄAppO) in Germany in 2002 led to the introduction of graded assessments in the clinical part of medical studies. This, in turn, lent new weight to the importance of written tests, even though the minimum requirements for exam quality are sometimes difficult to reach. Introducing exam quality as a criterion for the award of performance-based allocation of funds is expected to steer the attention of faculty members towards more quality and perpetuate higher standards. However, at present there is a lack of suitable algorithms for calculating exam quality. In the spring of 2014, the students' dean commissioned the "core group" for curricular improvement at the University Medical Center in Rostock to revise the criteria for the allocation of performance-based funds for teaching. In a first approach, we developed an algorithm that was based on the results of the most common type of exam in medical education, multiple choice tests. It included item difficulty and discrimination, reliability as well as the distribution of grades achieved. This algorithm quantitatively describes exam quality of multiple choice exams. However, it can also be applied to exams involving short assay questions and the OSCE. It thus allows for the quantitation of exam quality in the various subjects and - in analogy to impact factors and third party grants - a ranking among faculty. Our algorithm can be applied to all test formats in which item difficulty, the discriminatory power of the individual items, reliability of the exam and the distribution of grades are measured. Even though the content validity of an exam is not considered here, we believe that our algorithm is suitable as a general basis for performance-based allocation of funds.

An algorithm for calculating exam quality as a basis for performance-based allocation of funds at medical schools

Directory of Open Access Journals (Sweden)

Kirschstein, Timo

2016-05-01

Full Text Available Objective: The amendment of the Medical Licensing Act (ÄAppO in Germany in 2002 led to the introduction of graded assessments in the clinical part of medical studies. This, in turn, lent new weight to the importance of written tests, even though the minimum requirements for exam quality are sometimes difficult to reach. Introducing exam quality as a criterion for the award of performance-based allocation of funds is expected to steer the attention of faculty members towards more quality and perpetuate higher standards. However, at present there is a lack of suitable algorithms for calculating exam quality.Methods: In the spring of 2014, the students‘ dean commissioned the „core group“ for curricular improvement at the University Medical Center in Rostock to revise the criteria for the allocation of performance-based funds for teaching. In a first approach, we developed an algorithm that was based on the results of the most common type of exam in medical education, multiple choice tests. It included item difficulty and discrimination, reliability as well as the distribution of grades achieved. Results: This algorithm quantitatively describes exam quality of multiple choice exams. However, it can also be applied to exams involving short assay questions and the OSCE. It thus allows for the quantitation of exam quality in the various subjects and – in analogy to impact factors and third party grants – a ranking among faculty. Conclusion: Our algorithm can be applied to all test formats in which item difficulty, the discriminatory power of the individual items, reliability of the exam and the distribution of grades are measured. Even though the content validity of an exam is not considered here, we believe that our algorithm is suitable as a general basis for performance-based allocation of funds.

MCTS Microsoft SharePoint 2010 Configuration Study Guide Exam 70-667

CERN Document Server

Pyles, James

2010-01-01

A Sybex study guide for the new SharePoint Server 2010 Configuration examSharePoint holds 55 percent of the collaboration and content management market, with many more companies indicating they plan to join the fold. IT professionals interested in enhancing their marketability with the new Microsoft Certified Technology Specialist: Microsoft SharePoint Server 2010 Configuring exam will find this guide may be their only alternative to costly classroom training.Microsoft SharePoint claims over half the market for collaboration and content management software; IT professionals will boost their ma

CASP CompTIA Advanced Security Practitioner Study Guide Exam CAS-001

CERN Document Server

Gregg, Michael

2012-01-01

Get Prepared for CompTIA Advanced Security Practitioner (CASP) Exam Targeting security professionals who either have their CompTIA Security+ certification or are looking to achieve a more advanced security certification, this CompTIA Authorized study guide is focused on the new CompTIA Advanced Security Practitioner (CASP) Exam CAS-001. Veteran IT security expert and author Michael Gregg details the technical knowledge and skills you need to conceptualize, design, and engineer secure solutions across complex enterprise environments. He prepares you for aspects of the certification test that as

MCSA Windows Server 2012 R2 complete study guide exams 70-410, 70-411, 70-412, and 70-417

CERN Document Server

Panek, William

2014-01-01

Prepare for the MCSA Windows Server 2012 R2 Exams Microsoft's new version of the MCSA certification for WindowsServer 2012 R2 requires passing three exams (or one Upgrade exam ifyou have your MCSA or MCITP in Windows Server 2008). Thisvalue-priced study guide includes more than 1,000 pages of qualityexam-prep content, covering 100% of the objective domains of allthree exams (as well as the Upgrade exam, 70-417). In addition, you get access to an interactive practice testenvironment with more than 500 questions, electronic flashcards,and videos showing how to perform the more difficult tasks.

The new features of the ExaMe evaluation system and reliability of its fixed tests.

Science.gov (United States)

Martinková, P; Zvára, K; Zvárová, J; Zvára, K

2006-01-01

The ExaMe system for the evaluation of targeted knowledge has been in development since 1998. The new features of the ExaMe system are introduced in this paper. Especially, the new three-layer architecture is described. Besides the system itself, the properties of fixed tests in the ExaMe system are studied. In special detail, the reliability of the fixed tests is discussed. The theory background is explained and some limitations of the reliability are pointed out. Three characteristics used for estimation of reliability of educational tests are discussed: Cronbach's alpha, standardized item alpha and split half coefficient. The relation between these characteristics and reliability and between characteristics themselves is investigated. In more detail, the properties of Cronbach's alpha, the characteristics mostly used for the estimation of reliability, are discussed. A confidence interval is introduced for the characteristics. Since 2000, the serviceability of the ExaMe evaluation system as the supporting evaluation tool has been repeatedly shown at the courses of Ph.D. studies in biomedical informatics at Charles University in Prague. The ExaMe system also opens new possibilities for self-evaluation and distance learning, especially when connected with electronic books on the Internet. The estimation of reliability of tests contains some limitations. Keeping them in mind, we can still get some information about the quality of certain educational tests. Therefore, the estimation of reliability of the fixed tests is implemented in the ExaMe system.

A simplified approach for exit dose in vivo measurements in radiotherapy and its clinical application

International Nuclear Information System (INIS)

Banjade, D.P.; Shukri, A.; Tajuddin, A.A.; Shrestha, S.L.; Bhat, M.

2002-01-01

This is a study using LiF:Mg;Ti thermoluminescent dosimeter (TLD) rods in phantoms to investigate the effect of lack of backscatter on exit dose. Comparing the measured dose with anticipated dose calculated using tissue maximum ratio (TMR) or percentage depth dose (PDD) gives rise to a correction factor. This correction factor may be applied to in-vivo dosimetry results to derive true dose to a point within the patient. Measurements in a specially designed humanoid breast phantom as well as patients undergoing radiotherapy treatment were also been done. TLDs with reproducibility of within ±3% (1 SD) are irradiated in a series of measurements for 6 and 10 MV photon beams from a medical linear accelerator. The measured exit doses for the different phantom thickness for 6 MV beams are found to be lowered by 10.9 to 14.0% compared to the dose derived from theoretical estimation (normalized dose at d max ). The same measurements for 10 MV beams are lowered by 9.0 to 13.5%. The variations of measured exit dose for different field sizes are found to be within 2.5%. The exit doses with added backscatter material from 2 mm up to 15 cm, shows gradual increase and the saturated values agreed within 1.5% with the expected results for both beams. The measured exit doses in humanoid breast phantom as well as in the clinical trial on patients undergoing radiotherapy also agreed with the predicted results based on phantom measurements. The authors' viewpoint is that this technique provides sufficient information to design exit surface bolus to restore build down effect in cases where part of the exit surface is being considered as a target volume. It indicates that the technique could be translated for in vivo dose measurements, which may be a conspicuous step of quality assurance in clinical practice. Copyright (2002) Australasian College of Physical Scientists and Engineers in Medicine

Association of rheumatic diseases with early exit from paid employment in Portugal.

Science.gov (United States)

Laires, Pedro A; Gouveia, Miguel

2014-04-01

To examine the association between rheumatic diseases (RD) and other chronic morbidity with early exit from paid employment in the Portuguese population. The study population consisted of all people between 50 and 64 years of age (3,762 men and 4,241 women) who participated in the Portuguese National Health Survey, conducted in 2005/2006. Data were collected on demographics, ill-health, lifestyle, and socioeconomic factors. Logistic regression was used to estimate the isolated effect of rheumatic diseases and other chronic diseases on the likelihood of exit from paid employment. At the time of the survey, 45.1 % of the Portuguese population with ages between 50 and 64 years old were not employed. In the nonemployed population, 31.6 % self-reported "poor" to "very poor" health, whereas 16.4 % did so in the employed population. A larger average number of major chronic diseases per capita were also found in those not employed (1.9 vs. 1.4, p paid employment. In particular, rheumatic diseases were more prevalent (43.4 vs. 32.1 %) and associated with early exit from work (OR 1.31; CI 1.12-1.52, p = 0.001). This study suggests an association between RD and other major chronic diseases with early exit from paid employment in Portugal. Thus, health and social protection policies should target these chronic disorders in order to better address sustainability issues and social protection effectiveness.

Airport exit and entry screening for Ebola--August-November 10, 2014.

Science.gov (United States)

Brown, Clive M; Aranas, Aaron E; Benenson, Gabrielle A; Brunette, Gary; Cetron, Marty; Chen, Tai-Ho; Cohen, Nicole J; Diaz, Pam; Haber, Yonat; Hale, Christa R; Holton, Kelly; Kohl, Katrin; Le, Amanda W; Palumbo, Gabriel J; Pearson, Kate; Phares, Christina R; Alvarado-Ramy, Francisco; Roohi, Shah; Rotz, Lisa D; Tappero, Jordan; Washburn, Faith M; Watkins, James; Pesik, Nicki

2014-12-12

In response to the largest recognized Ebola virus disease epidemic now occurring in West Africa, the governments of affected countries, CDC, the World Health Organization (WHO), and other international organizations have collaborated to implement strategies to control spread of the virus. One strategy recommended by WHO calls for countries with Ebola transmission to screen all persons exiting the country for "unexplained febrile illness consistent with potential Ebola infection." Exit screening at points of departure is intended to reduce the likelihood of international spread of the virus. To initiate this strategy, CDC, WHO, and other global partners were invited by the ministries of health of Guinea, Liberia, and Sierra Leone to assist them in developing and implementing exit screening procedures. Since the program began in August 2014, an estimated 80,000 travelers, of whom approximately 12,000 were en route to the United States, have departed by air from the three countries with Ebola transmission. Procedures were implemented to deny boarding to ill travelers and persons who reported a high risk for exposure to Ebola; no international air traveler from these countries has been reported as symptomatic with Ebola during travel since these procedures were implemented.

Toward electron exit wave tomography of amorphous materials at atomic resolution

Energy Technology Data Exchange (ETDEWEB)

Borisenko, Konstantin B., E-mail: konstantin.borisenko@materials.ox.ac.uk [Department of Materials, University of Oxford, Parks Road, Oxford OX1 3PH (United Kingdom); Moldovan, Grigore [Department of Materials, University of Oxford, Parks Road, Oxford OX1 3PH (United Kingdom); Kirkland, Angus I., E-mail: angus.kirkland@materials.ox.ac.uk [Department of Materials, University of Oxford, Parks Road, Oxford OX1 3PH (United Kingdom); Van Dyck, Dirk [Department of Physics, University of Antwerp, Groenenborgerlaan 171, 2020 Antwerp (Belgium); Tang, Hsin-Yu; Chen, Fu-Rong [Department of Engineering and System Science, National Tsing Hua University, Kuang-Fu Road, 300 Hsinchu, Taiwan (China)

2012-09-25

Highlights: Black-Right-Pointing-Pointer We suggest a novel electron exit wave tomography approach to obtain three dimensional atomic structures of amorphous materials. Black-Right-Pointing-Pointer Theoretical tests using a model of amorphous Si doped with Au show that it is feasible to reconstruct both Si and Au atoms positions. Black-Right-Pointing-Pointer Reconstructions of the strongly scattering Au atoms positions appear to be insensitive to typical experimental errors. - Abstract: We suggest to use electron exit wave phase for tomographic reconstruction of structure of Au-doped amorphous Si with atomic resolution. In the present theoretical investigation into the approach it is found that the number of projections and the accuracy of defocus in the focal series restoration are the main factors that contribute to the final resolution. Although resolution is ultimately limited by these factors, phase shifts in the exit wave are sufficient to identify the position of Au atoms in an amorphous Si needle model, even when only 19 projections with defocus error of 4 nm are used. Electron beam damage will probably further limit the resolution of such tomographic reconstructions, however beam damage can be mitigated using lower accelerating voltages.

Head First PMP A Brain-Friendly Guide to Passing the Project Management Professional Exam

CERN Document Server

Stellman, Andrew

2008-01-01

Media Reviews "I have been doing project management for over 30 years and am considered a subject matter expert in the PMBOK(r) Guide -Third Edition primarily because I am the Project Manager who led the team that developed this edition. As a consultant I was hired to review and evaluate eight of the top selling PMP Exam Preparation books for their accuracy in following the PMBOK® Guide - Third Edition. I have developed and taught a PMP Exam Prep course for a leading R.E.P., and taught PMP Exam preparation classes for PMI Chapters. I can honestly say that Head First PMP is by far the best P

A balance of FGF and BMP signals regulates cell cycle exit and Equarin expression in lens cells

Science.gov (United States)

Jarrin, Miguel; Pandit, Tanushree; Gunhaga, Lena

2012-01-01

In embryonic and adult lenses, a balance of cell proliferation, cell cycle exit, and differentiation is necessary to maintain physical function. The molecular mechanisms regulating the transition of proliferating lens epithelial cells to differentiated primary lens fiber cells are poorly characterized. To investigate this question, we used gain- and loss-of-function analyses to modulate fibroblast growth factor (FGF) and/or bone morphogenetic protein (BMP) signals in chick lens/retina explants. Here we show that FGF activity plays a key role for proliferation independent of BMP signals. Moreover, a balance of FGF and BMP signals regulates cell cycle exit and the expression of Ccdc80 (also called Equarin), which is expressed at sites where differentiation of lens fiber cells occurs. BMP activity promotes cell cycle exit and induces Equarin expression in an FGF-dependent manner. In contrast, FGF activity is required but not sufficient to induce cell cycle exit or Equarin expression. Furthermore, our results show that in the absence of BMP activity, lens cells have increased cell cycle length or are arrested in the cell cycle, which leads to decreased cell cycle exit. Taken together, these findings suggest that proliferation, cell cycle exit, and early differentiation of primary lens fiber cells are regulated by counterbalancing BMP and FGF signals. PMID:22718906

Modelo computacional para o gerenciamento de dados e exames de pacientes para o acompanhamento remoto por meio de conferência multimídia Computational model for data and patients' exams management for remote follow-up by multimedia conferences

Directory of Open Access Journals (Sweden)

Huei Diana Lee

2010-12-01

Full Text Available OBJETIVO: Desenvolver um modelo computacional para aquisição, gerenciamento e armazenamento de dados e exames de pacientes, e definir uma arquitetura de conferência multimídia para o acompanhamento remoto de exames. MATERIAIS E MÉTODOS: Definiu-se uma arquitetura computacional para a aquisição de exames a partir de equipamentos hospitalares, e para o armazenamento e gerenciamento de dados e exames de pacientes foram utilizados o servidor de aplicações Jboss, o sistema gerenciador de banco de dados MySQL, o servidor de páginas Apache e o framework Jboss-Seam para o desenvolvimento de aplicações. Para a conferência multimídia, foi aplicado um estudo de caso utilizando a arquitetura Openmeetings. RESULTADOS: Foram definidos modelos computacionais para o gerenciamento consistente e seguro de dados e exames de pacientes e estudou-se uma arquitetura para conferência multimídia. CONCLUSÃO: Os modelos computacionais, o protótipo implementado e a arquitetura de conferência multimídia avaliada poderão ser aplicados em situações reais da área médica, contribuindo para o acompanhamento remoto de pacientes.OBJECTIVE: To develop a computational model for acquisition, management and storing data and patients' exams, and to define a multimedia conference architecture to remote patients' follow-up. MATERIALS AND METHODS: A computational architecture was defined to acquire exams' information from hospital equipment and to store and manage patients' data and exams using the JBoss application server, the MySql database manager system, the Apache web page server and the Jboss Seam framework for application development. For multimedia conference, a case study using the Openmeetins architecture was performed. RESULTS: computational models intended to the consistent and safe management of data and patients' exams were defined and a multimedia conference architecture was studied. CONCLUSION: The computational models, the prototype developed and

Determination of the availability of core exit thermocouples during severe accident situations

International Nuclear Information System (INIS)

Edson, J.L.

1985-04-01

This report presents the findings and recommendations of the Nuclear Power Plant Instrumentation Evaluation (NPPIE) program concerning signal validation methods to determine the on-line availability of core exit thermocouples during accident situations. Methods of selecting appropriate signal validation techniques are discussed and sources of error identified. This report shows that through the use of these techniques the existence of high-temperature-caused errors may be detected as they occur. Specific recommendations for application of selected signal validation techniques to core exit thermocouples and other measurement systems are made. 23 refs., 22 figs., 3 tabs

Molecular signature of cell cycle exit induced in human T lymphoblasts by IL-2 withdrawal

Directory of Open Access Journals (Sweden)

Pfeifer Aleksandra

2009-06-01

Full Text Available Abstract Background The molecular mechanisms of cell cycle exit are poorly understood. Studies on lymphocytes at cell cycle exit after growth factor deprivation have predominantly focused on the initiation of apoptosis. We aimed to study gene expression profile of primary and immortalised IL-2-dependent human T cells forced to exit the cell cycle by growth factor withdrawal, before apoptosis could be evidenced. Results By the Affymetrix microarrays HG-U133 2.0 Plus, 53 genes were distinguished as differentially expressed before and soon after IL-2 deprivation. Among those, PIM1, BCL2, IL-8, HBEGF, DUSP6, OSM, CISH, SOCS2, SOCS3, LIF and IL13 were down-regulated and RPS24, SQSTM1, TMEM1, LRRC8D, ECOP, YY1AP1, C1orf63, ASAH1, SLC25A46 and MIA3 were up-regulated. Genes linked to transcription, cell cycle, cell growth, proliferation and differentiation, cell adhesion, and immune functions were found to be overrepresented within the set of the differentially expressed genes. Conclusion Cell cycle exit of the growth factor-deprived T lymphocytes is characterised by a signature of differentially expressed genes. A coordinate repression of a set of genes known to be induced during T cell activation is observed. However, growth arrest following exit from the cell cycle is actively controlled by several up-regulated genes that enforce the non-dividing state. The identification of genes involved in cell cycle exit and quiescence provides new hints for further studies on the molecular mechanisms regulating the non-dividing state of a cell, the mechanisms closely related to cancer development and to many biological processes.

The Effect of Exit-Site Antibacterial Honey Versus Nasal Mupirocin Prophylaxis on the Microbiology and Outcomes of Peritoneal Dialysis-Associated Peritonitis and Exit-Site Infections: A Sub-Study of the Honeypot Trial.

Science.gov (United States)

Zhang, Lei; Badve, Sunil V; Pascoe, Elaine M; Beller, Elaine; Cass, Alan; Clark, Carolyn; de Zoysa, Janak; Isbel, Nicole M; McTaggart, Steven; Morrish, Alicia T; Playford, E Geoffrey; Scaria, Anish; Snelling, Paul; Vergara, Liza A; Hawley, Carmel M; Johnson, David W

2015-12-01

♦ The HONEYPOT study recently reported that daily exit-site application of antibacterial honey was not superior to nasal mupirocin prophylaxis for preventing overall peritoneal dialysis (PD)-related infection. This paper reports a secondary outcome analysis of the HONEYPOT study with respect to exit-site infection (ESI) and peritonitis microbiology, infectious hospitalization and technique failure. ♦ A total of 371 PD patients were randomized to daily exit-site application of antibacterial honey plus usual exit-site care (N = 186) or intranasal mupirocin prophylaxis (in nasal Staphylococcus aureus carriers only) plus usual exit-site care (control, N = 185). Groups were compared on rates of organism-specific ESI and peritonitis, peritonitis- and infection-associated hospitalization, and technique failure (PD withdrawal). ♦ The mean peritonitis rates in the honey and control groups were 0.41 (95% confidence interval [CI] 0.32 - 0.50) and 0.41 (95% CI 0.33 - 0.49) episodes per patient-year, respectively (incidence rate ratio [IRR] 1.01, 95% CI 0.75 - 1.35). When specific causative organisms were examined, no differences were observed between the groups for gram-positive (IRR 0.99, 95% CI 0.66 - 1.49), gram-negative (IRR 0.71, 95% CI 0.39 - 1.29), culture-negative (IRR 2.01, 95% CI 0.91 - 4.42), or polymicrobial peritonitis (IRR 1.08, 95% CI 0.36 - 3.20). Exit-site infection rates were 0.37 (95% CI 0.28 - 0.45) and 0.33 (95% CI 0.26 - 0.40) episodes per patient-year for the honey and control groups, respectively (IRR 1.12, 95% CI 0.81 - 1.53). No significant differences were observed between the groups for gram-positive (IRR 1.10, 95% CI 0.70 - 1.72), gram-negative (IRR: 0.85, 95% CI 0.46 - 1.58), culture-negative (IRR 1.88, 95% CI 0.67 - 5.29), or polymicrobial ESI (IRR 1.00, 95% CI 0.40 - 2.54). Times to first peritonitis-associated and first infection-associated hospitalization were similar in the honey and control groups. The rates of technique failure (PD

Influence of Preparatory Workshops on Dental Students' Academic Performance and Stress on Their First Operative Dentistry Psychomotor Exam.

Science.gov (United States)

Dilbone, Deborah A; Feng, Xiaoying; Su, Yu; Xirau-Probert, Patricia; Behar-Horenstein, Linda S; Nascimento, Marcelle M

2018-06-01

Predoctoral dental psychomotor examinations are known to generate high levels of stress among dental students, which may compromise their academic performance. At one U.S. dental school, all 93 first-year dental students were invited to attend a series of three workshop sessions prior to enrollment in their initial operative dentistry course. The workshops were developed to facilitate academic transition from the dental anatomy course to the operative dentistry course; provide early exposure to materials, instruments, and laboratory techniques; support the early development of psychomotor and self-assessment skills; and lessen students' stress and anxiety levels regarding psychomotor examinations. The aim of this study was to assess the impact of the workshops on the students' academic performance and self-reported stress and preparedness. All students who attended the workshop sessions and all who did not were asked to complete a pre-exam survey (immediately preceding the exam) and a post-exam survey (immediately after the exam) on the day of their first operative dentistry psychomotor exam. Of the 93 students, 21 attended one, 34 attended two, and 25 attended three workshop sessions, while 13 students did not attend any. Response rates for the pre- and post-exam surveys were 100% and 98.9%, respectively. Students who attended all three workshop sessions reported being significantly less stressed about taking the exam than the other groups. The mean exam grade of students who attended the workshop sessions was significantly higher than that of students who did not attend the sessions. These findings support the development and implementation of preparatory workshops to improve academic performance and decrease the stress levels of dental students prior to the first operative dentistry psychomotor exam.

EFFECT OF REVENUE INSURANCE ON ENTRY AND EXIT DECISIONS IN TABLE GRAPE PRODUCTION: A REAL OPTION APPROACH

OpenAIRE

Seo, Sangtaek; Salin, Victoria; Mitchell, Paul D.; Leatham, David J.

2004-01-01

This study determines the entry and exit thresholds of table grape farming with irreversible investment under uncertainty. Real option approach is adopted to consider the investment and management flexibility. Also revenue insurance is introduced to consider the effect of the risk management programs on the entry and exit thresholds. Results show that revenue insurance increases the entry and exit thresholds by 1% and 4%, respectively, thus discouraging new investment and current farming, as ...

Distance-regular graphs

NARCIS (Netherlands)

van Dam, Edwin R.; Koolen, Jack H.; Tanaka, Hajime

2016-01-01

This is a survey of distance-regular graphs. We present an introduction to distance-regular graphs for the reader who is unfamiliar with the subject, and then give an overview of some developments in the area of distance-regular graphs since the monograph 'BCN'[Brouwer, A.E., Cohen, A.M., Neumaier,

Efeitos de um programa regular de atividade generalizada sobre os distúrbios motores de uma pessoa com doença de Parkinson The Effects of a Regular Physical Activity Program on the Motor Disorders of a Parkinson Patient. Efectos de un programa regular de actividad generalizada sobre los disturbios motores de una persona con enfermedad de parkinson

Directory of Open Access Journals (Sweden)

2006-11-01

Full Text Available O objetivo deste estudo foi analisar os efeitos de seis meses de um programa regular de atividade física sobre os distúrbios motores em uma pessoa idosa com a doença de parkinson. O sujeito pesquisado foi uma pessoa idosa do sexo feminino, sedentária, portadora da doença há dez anos. O programa foi desenvolvido durante seis meses com o apoio do Centro Goiano de Neurologia e Neurocirurgia. Para avaliar o nível de rigidez, a bradicinesia, a capacidade de se levantar da cadeira e se locomover e as alterações posturais foi utilizado um exame motor (BRITO, 1998, com avaliações antes e após o programa. Com dois meses de atividade física houve melhora na rigidez, na bradicinesia e no equilíbrio, contribuindo para a autonomia e independência do sujeito pesquisado. PALAVRAS-CHAVE: Doença de Parkinson – Idoso – Atividade física This study aims at analyzing the effects of a six-month program of regular physical activity upon the motor disorders of an elderly Parkinson patient. The subject was an elderly, physically inactive woman, who has had Parkinson for ten years. The six-month program was developed with the help of the Centro Goiano de Neurologia e Neurocirurgia (The Goianian Center for Neurology and Neuro-surgery. A motor exam (Brito, 1998 was used to evaluate the level of rigidness, bradicinesia, the capacity to raise from a chair and walk, and posture changes. Evaluations were conducted before and after the program. After two months of regular physical activity, improvements were noticed on rigidness, bradicinesia, and balance, which brought autonomy and independence to the subject. KEY-WORDS: Parkinson - elderly - physical activity El objetivo de este estudio fue analizar los efectos de seis meses de un programa regular de actividad física sobre los disturbios motores en una persona mayor con la enfermedad de parkinson. El sujeto investigado fue una persona mayor del sexo femenino, sedentaria portadora de la enfermedad

The Exit Gradient As a Measure of Groundwater Dependency of Watershed Ecosystem Services

Science.gov (United States)

Faulkner, B. R.; Canfield, T. J.; Justin, G. F.

2014-12-01

Flux of groundwater to surface water is often of great interest for the determination of the groundwater dependency of ecosystem services, such as maintenance of wetlands and of baseflow as a contributor to stream channel storage. It is difficult to measure. Most methods are based on coarse mass balance estimates or seepage meters. One drawback of these methods is they are not entirely spatially explicit. The exit gradient is commonly used in engineering studies of hydraulic structures affected by groundwater flow. It can be simply defined in the groundwater modeling context as the ratio of the difference between the computed head and the land surface elevation, for each computational cell, to the thickness of the cell, as it varies in space. When combined with calibrated groundwater flow models, it also has the potential to be useful in watershed scale evaluations of groundwater dependency in a spatially explicit way. We have taken advantage of calibrated models for the Calapooia watershed, Oregon, to map exit gradients for the watershed. Streams in the Calapooia are hydraulically well connected with groundwater. Not surprisingly, we found large variations in exit gradients between wet and dry season model runs, supporting the notion of stream expansion, as observed in the field, which may have a substantial influence on water quality. We have mapped the exit gradients in the wet and dry seasons, and compared them to regions which have been mapped in wetland surveys. Those classified as Palustrine types fell largest in the area of contribution from groundwater. In many cases, substantially high exit gradients, even on average, did not correspond to mapped wetland areas, yet nutrient retention ecosystem services may still be playing a role in these areas. The results also reinforce the notion of the importance of baseflow to maintenance of stream flow, even in the dry summer season in this Temperate/Mediterranean climate. Exit gradient mapping is a simple, yet

Regular expressions cookbook

CERN Document Server

Goyvaerts, Jan

2009-01-01

This cookbook provides more than 100 recipes to help you crunch data and manipulate text with regular expressions. Every programmer can find uses for regular expressions, but their power doesn't come worry-free. Even seasoned users often suffer from poor performance, false positives, false negatives, or perplexing bugs. Regular Expressions Cookbook offers step-by-step instructions for some of the most common tasks involving this tool, with recipes for C#, Java, JavaScript, Perl, PHP, Python, Ruby, and VB.NET. With this book, you will: Understand the basics of regular expressions through a

The CPA Exam as a Postcurriculum Accreditation Assessment

Science.gov (United States)

Barilla, Anthony G.; Jackson, Robert E.; Mooney, J. Lowell

2008-01-01

Business schools often attain accreditation to demonstrate program efficacy. J. A. Marts, J. D. Baker, and J. M. Garris (1988) hypothesized that candidates from Association to Advance Collegiate Schools of Business International (AACSB)-accredited accounting programs perform better on the CPA exam than do candidates from non-AACSB-accredited…

Hydroelastic slamming of flexible wedges: Modeling and experiments from water entry to exit

Science.gov (United States)

Shams, Adel; Zhao, Sam; Porfiri, Maurizio

2017-03-01

Fluid-structure interactions during hull slamming are of great interest for the design of aircraft and marine vessels. The main objective of this paper is to establish a semi-analytical model to investigate the entire hydroelastic slamming of a wedge, from the entry to the exit phase. The structural dynamics is described through Euler-Bernoulli beam theory and the hydrodynamic loading is estimated using potential flow theory. A Galerkin method is used to obtain a reduced order modal model in closed-form, and a Newmark-type integration scheme is utilized to find an approximate solution. To benchmark the proposed semi-analytical solution, we experimentally investigate fluid-structure interactions through particle image velocimetry (PIV). PIV is used to estimate the velocity field, and the pressure is reconstructed by solving the incompressible Navier-Stokes equations from PIV data. Experimental results confirm that the flow physics and free-surface elevation during water exit are different from water entry. While water entry is characterized by positive values of the pressure field, with respect to the atmospheric pressure, the pressure field during water exit may be less than atmospheric. Experimental observations indicate that the location where the maximum pressure in the fluid is attained moves from the pile-up region to the keel, as the wedge reverses its motion from the entry to the exit stage. Comparing experimental results with semi-analytical findings, we observe that the model is successful in predicting the free-surface elevation and the overall distribution of the hydrodynamic loading on the wedge. These integrated experimental and theoretical analyses of water exit problems are expected to aid in the design of lightweight structures, which experience repeated slamming events during their operation.

Assessment of the Assessment Tool: Analysis of Items in a Non-MCQ Mathematics Exam

Science.gov (United States)

Khoshaim, Heba Bakr; Rashid, Saima

2016-01-01

Assessment is one of the vital steps in the teaching and learning process. The reported action research examines the effectiveness of an assessment process and inspects the validity of exam questions used for the assessment purpose. The instructors of a college-level mathematics course studied questions used in the final exams during the academic…

Additional Support for the Information Systems Analyst Exam as a Valid Program Assessment Tool

Science.gov (United States)

Carpenter, Donald A.; Snyder, Johnny; Slauson, Gayla Jo; Bridge, Morgan K.

2011-01-01

This paper presents a statistical analysis to support the notion that the Information Systems Analyst (ISA) exam can be used as a program assessment tool in addition to measuring student performance. It compares ISA exam scores earned by students in one particular Computer Information Systems program with scores earned by the same students on the…

LL-regular grammars

NARCIS (Netherlands)

Nijholt, Antinus

1980-01-01

Culik II and Cogen introduced the class of LR-regular grammars, an extension of the LR(k) grammars. In this paper we consider an analogous extension of the LL(k) grammars called the LL-regular grammars. The relation of this class of grammars to other classes of grammars will be shown. Any LL-regular

Exit interviews administered to patients participating in the COSTOP placebo controlled randomised trial in Uganda

Directory of Open Access Journals (Sweden)

Andrew Nunn

2016-08-01

Discussion: The exit interview demonstrated that there was some evidence of open label drug being taken by the participants. However, the results from the interview do not suggest that the trial results would have been seriously compromised. We would recommend the exit interview as a valuable way of assessing adherence to trial procedures.

Assessment of preoperative exams request in a teaching hospital

Directory of Open Access Journals (Sweden)

Eduardo Toshiyuki Moro

2014-04-01

Background: preoperative exams aim to identify disorders that may compromise the patient´s perioperative care. However, unnecessary tests rarely change the outcome, and are expensive to institution. The aim of this study was to evaluate the preoperative tests ordered in Santa Lucinda hospital, Sorocaba - SP. Methods: after approval by the Ethics Committee of PUC-SP University, we assessed pre-anesthetic evaluation of patients undergoing elective surgery from march to August, 2011. We recorded: age, sex, ASA physical status, the presence of coexisting diseases, medication use, type of surgery and preoperative tests. They were classified as sufficient, sufficient with unnecessary tests, insufficient, or insufficient with unnecessary tests. Results: two hundred and nineteen records were evaluated, of which 52% were considered sufficient, but with unnecessary tests. For 24% of patients, the tests were insufficient, with some ordered unnecessarily. To 8% of patients, the tests were insufficient, and only 16% didn´t have insufficient and unnecessary tests. The most frequently ordered tests were hematocrit and hemoglobin. The exams most unnecessarily ordered were coagulation tests and dosage of serum urea. Among the necessary examinations, but unsolicited, there were ECG (27%, electrolytes (13% and creatinine (11%. Seventy-nine tests showed some kind of problem, but they didn´t change in behavior. Conclusions: preoperative tests unnecessarily ordered are frequent, which do not guarantee that some patients present to surgery without fundamental exams according to their risk group.

New approach of a traditional analysis for predicting near-exit jet liquid instabilities

Science.gov (United States)

Jaramillo, Guillermo; Collicott, Steven

2015-11-01

Traditional linear instability theory for round liquid jets requires an exit-plane velocity profile be assumed so as to derive the characteristic growth rates and wavelengths of instabilities. This requires solving an eigenvalue problem for the Rayleigh Equation. In this new approach, a hyperbolic tangent velocity profile is assumed at the exit-plane of a round jet and a comparison is made with a hyperbolic secant profile. Temporal and Spatial Stability Analysis (TSA and SSA respectively) are the employed analytical tools to compare results of predicted most-unstable wavelengths from the given analytical velocity profiles and from previous experimental work. The local relevance of the velocity profile in the near-exit region of a liquid jet and the validity of an inviscid formulation through the Rayleigh equation are discussed as well. A comparison of numerical accuracy is made between two different mathematical approaches for the hyperbolic tangent profile with and without the Ricatti transformation. Reynolds number based on the momentum thickness of the boundary layer at the exit plane non-dimensionalizes the problem and, the Re range, based on measurements by Portillo in 2011, is 185 to 600. Wavelength measurements are taken from Portillo's experiment. School of Mechanical Engineering at Universidad del Valle, supported by a grant from Fulbright and Colciencias. Ph.D. student at the School of Aeronautics and Astronautics Purdue University.

Skipping Class in College and Exam Performance: Evidence from a Regression Discontinuity Classroom Experiment

Science.gov (United States)

Dobkin, Carlos; Gil, Ricard; Marion, Justin

2010-01-01

In this paper we estimate the effect of class attendance on exam performance by implementing a policy in three large economics classes that required students scoring below the median on the midterm exam to attend class. This policy generated a large discontinuity in the rate of post-midterm attendance at the median of the midterm score. We…

Ecologies of ideologies: Explaining party entry and exit in West-European parliaments, 1945-2013.

Science.gov (United States)

van de Wardt, Marc; Berkhout, Joost; Vermeulen, Floris

2017-06-01

This study introduces a population-ecological approach to the entry and exit of political parties. A primary proposition of population ecology is that organizational entry and exit depends on the number of organizations already present: that is, density. We propose that political parties mainly experience competition from parties in the same ideological niche (left, centre, right). Pooled time-series analyses of 410 parties, 263 elections and 18 West-European countries largely support our expectations. We find that political parties are more likely to exit when density within their niche increases. Also there is competition between adjacent ideological niches, i.e. between centrist and right-wing niches. In contrast to our expectations, neither density nor institutional rules impact party entry. This raises important questions about the rationale of prospective entrants.

Prediction of midline dose from entrance ad exit dose using OSLD measurements for total irradiation

Energy Technology Data Exchange (ETDEWEB)

Choi, Chang Heon; Park, Jong Min; Park, So Yeon; Chun, Min Soo; Han, Ji Hye; Cho, Jin Dong; Kim, Jung In [Dept. of Radiation Oncology, Seoul National University Hospital, Seoul (Korea, Republic of)

2017-06-15

This study aims to predict the midline dose based on the entrance and exit doses from optically stimulated luminescence detector (OSLD) measurements for total body irradiation (TBI). For TBI treatment, beam data sets were measured for 6 MV and 15 MV beams. To evaluate the tissue lateral effect of various thicknesses, the midline dose and peak dose were measured using a solid water phantom (SWP) and ion chamber. The entrance and exit doses were measured using OSLDs. OSLDs were attached onto the central beam axis at the entrance and exit surfaces of the phantom. The predicted midline dose was evaluated as the sum of the entrance and exit doses by OSLD measurement. The ratio of the entrance dose to the exit dose was evaluated at various thicknesses. The ratio of the peak dose to the midline dose was 1.12 for a 30 cm thick SWP at both energies. When the patient thickness is greater than 30 cm, the 15 MV should be used to ensure dose homogeneity. The ratio of the entrance dose to the exit dose was less than 1.0 for thicknesses of less than 30 cm and 40 cm at 6 MV and 15 MV, respectively. Therefore, the predicted midline dose can be underestimated for thinner body. At 15 MV, the ratios were approximately 1.06 for a thickness of 50 cm. In cases where adult patients are treated with the 15 MV photon beam, it is possible for the predicted midline dose to be overestimated for parts of the body with a thickness of 50 cm or greater. The predicted midline dose and OSLD-measured midline dose depend on the phantom thickness. For in-vivo dosimetry of TBI, the measurement dose should be corrected in order to accurately predict the midline dose.

The use of an electronic portal imaging device for exit dosimetry and quality control measurements

International Nuclear Information System (INIS)

Kirby, Michael C.; Williams, Peter C.

1995-01-01

Purpose: To determine ways in which electronic portal imaging devices (EPIDs) could be used to (a) measure exit doses for external beam radiotherapy and (b) perform quality control checks on linear accelerators. Methods and Materials: When imaging, our fluoroscopic EPID adjusts the gain, offset, and frame acquisition time of the charge coupled device (CCD) camera automatically, to allow for the range of photon transmissions through the patient, and to optimize the signal-to-noise ratio. However, our EPID can be programmed to act as an integrating dosemeter. EPID dosemeter measurements were made for 20 MV photons, for different field sizes and thicknesses of unit density phantom material placed at varying exit surface to detector distances. These were compared with simultaneous Silicon diode exit dose measurements. Our exit dosimetry technique was verified using an anthropomorphic type phantom, and some initial measurements have been made for patients treated with irregularly shaped 20 MV x-ray fields. In this dosimetry mode, our EPID was also used to measure certain quality control parameters, x-ray field flatness, and the verification of segmented intensity modulated field prescriptions. Results: Configured for dosimetry, our EPID exhibited a highly linear response, capable of resolving individual monitor units. Exit doses could be measured to within about 3% of that measured using Silicon diodes. Field flatness was determined to within 1.5% of Farmer dosemeter measurements. Segmented intensity modulated fields can be easily verified. Conclusions: Our EPID has the versatility to assess a range of parameters pertinent to the delivery of high quality, high precision radiotherapy. When configured appropriately, it can measure exit doses in vivo, with reasonable accuracy, perform certain quick quality control checks, and analyze segmented intensity modulated treatment fields

Exit, voice and loyalty in Kenya's French bean industry: What ...

African Journals Online (AJOL)

response affected their continued participation in the supermarket business. It applies Hirschman's concept of exit, voice and loyalty to assess the strategies used by ... This strategy of compliance with IFSS has since become the model in

On a mean field game optimal control approach modeling fast exit scenarios in human crowds

KAUST Repository

Burger, Martin; Di Francesco, Marco; Markowich, Peter A.; Wolfram, Marie Therese

2013-01-01

The understanding of fast exit and evacuation situations in crowd motion research has received a lot of scientific interest in the last decades. Security issues in larger facilities, like shopping malls, sports centers, or festivals necessitate a better understanding of the major driving forces in crowd dynamics. In this paper we present an optimal control approach modeling fast exit scenarios in pedestrian crowds. The model is formulated in the framework of mean field games and based on a parabolic optimal control problem. We consider the case of a large human crowd trying to exit a room as fast as possible. The motion of every pedestrian is determined by minimizing a cost functional, which depends on his/her position and velocity, the overall density of people, and the time to exit. This microscopic setup leads in a mean-field formulation to a nonlinear macroscopic optimal control problem, which raises challenging questions for the analysis and numerical simulations.We discuss different aspects of the mathematical modeling and illustrate them with various computational results. ©2013 IEEE.

On a mean field game optimal control approach modeling fast exit scenarios in human crowds

KAUST Repository

Burger, Martin

2013-12-01

The understanding of fast exit and evacuation situations in crowd motion research has received a lot of scientific interest in the last decades. Security issues in larger facilities, like shopping malls, sports centers, or festivals necessitate a better understanding of the major driving forces in crowd dynamics. In this paper we present an optimal control approach modeling fast exit scenarios in pedestrian crowds. The model is formulated in the framework of mean field games and based on a parabolic optimal control problem. We consider the case of a large human crowd trying to exit a room as fast as possible. The motion of every pedestrian is determined by minimizing a cost functional, which depends on his/her position and velocity, the overall density of people, and the time to exit. This microscopic setup leads in a mean-field formulation to a nonlinear macroscopic optimal control problem, which raises challenging questions for the analysis and numerical simulations.We discuss different aspects of the mathematical modeling and illustrate them with various computational results. ©2013 IEEE.

Exame físico na criança: um guia para o enfermeiro

Directory of Open Access Journals (Sweden)

Josilene de Melo Buriti Vasconcelos

1999-12-01

Full Text Available O exame físico constitui-se numa importante etapa dentro do processo de avaliação à criança, através do qual o enfermeiro enriquece as informações obtidas durante a entrevista e fundamenta a assistência de enfermagem. Na atualidade, mediante o crescente interesse dos enfermeiros em aplicar o processo de enfermagem em todas as suas etapas, o exame físico tem ocupado lugar de destaque, por permitir que os enfermeiros conheçam as necessidades de seus clientes, no que diz respeito aos seus aspectos físicos e fisiológicos, permitindo a identificação dos diagnósticos de enfermagem, alem de servir como recurso para avaliação efetiva das intervenções de enfermagem. Este estudo, de caráter bibliográfico, objetivou elaborar um guia para realização do exame físico na criança, a ser utilizado por enfermeiros, durante o processo de avaliação à criança. Nele apresentamos o exame físico de forma sistemática, utilizando a seqüência céfalo-caudal, descrevendo os possíveis achados normais e anormais ao examinarmos a criança.

Drivers' Visual Characteristics when Merging onto or Exiting an Urban Expressway.

Directory of Open Access Journals (Sweden)

Ying Cheng

Full Text Available The aim of this study is to examine drivers' visual and driving behavior while merging onto or exiting an urban expressway with low and high traffic densities. The analysis was conducted according to three periods (approaching, merging or exiting, and accelerating or decelerating. A total of 10 subjects (8 males and 2 females with ages ranging from 25 to 52 years old (M = 30.0 years old participated in the study. The research was conducted in a natural driving situation, and the drivers' eye movements were monitored and recorded using an eye tracking system. The results show that the influence of traffic density on the glance duration and scan duration is more significant when merging than when exiting. The results also demonstrate that the number of glances and the mean glance duration are mainly related to the driving task (e.g., the merging period. Therefore, drivers' visual search strategies mainly depend on the current driving task. With regard to driving behavior, the variation tendencies of the duration and the velocity of each period are similar. These results support building an automated driving assistant system that can automatically identify gaps and accelerate or decelerate the car accordingly or provide suggestions to the driver to do so.

Graphical modeling for item difficulty in medical faculty exams

African Journals Online (AJOL)

. Conclusion: The ... difficulty criteria. Key words: Item difficulty, quality control, statistical process control, variable control charts ..... assumed that 68% of the values fall in the interval ± 1.S; .... The balance of the construction of items of exam has ...

High resolution electron exit wave reconstruction from a diffraction pattern using Gaussian basis decomposition

International Nuclear Information System (INIS)

Borisenko, Konstantin B; Kirkland, Angus I

2014-01-01

We describe an algorithm to reconstruct the electron exit wave of a weak-phase object from single diffraction pattern. The algorithm uses analytic formulations describing the diffraction intensities through a representation of the object exit wave in a Gaussian basis. The reconstruction is achieved by solving an overdetermined system of non-linear equations using an easily parallelisable global multi-start search with Levenberg-Marquard optimisation and analytic derivatives

Hedgehog signaling acts with the temporal cascade to promote neuroblast cell cycle exit.

Directory of Open Access Journals (Sweden)

Phing Chian Chai

Full Text Available In Drosophila postembryonic neuroblasts, transition in gene expression programs of a cascade of transcription factors (also known as the temporal series acts together with the asymmetric division machinery to generate diverse neurons with distinct identities and regulate the end of neuroblast proliferation. However, the underlying mechanism of how this "temporal series" acts during development remains unclear. Here, we show that Hh signaling in the postembryonic brain is temporally regulated; excess (earlier onset of Hh signaling causes premature neuroblast cell cycle exit and under-proliferation, whereas loss of Hh signaling causes delayed cell cycle exit and excess proliferation. Moreover, the Hh pathway functions downstream of Castor but upstream of Grainyhead, two components of the temporal series, to schedule neuroblast cell cycle exit. Interestingly, hh is likely a target of Castor. Hence, Hh signaling provides a link between the temporal series and the asymmetric division machinery in scheduling the end of neurogenesis.

[Transformation Regularity of Nitrogen in Aqueous Product Derived from Hydrothermal Liquefaction of Sewage Sludge in Subcritical Water].

Science.gov (United States)

Sun, Yan-qing; Sun, Zhen; Zhang, Jing-lai

2015-06-01

Hydrothermal liquefaction in subcritical water is a potential way to treat sewage sludge as a resource rather than a waste. This study focused on the transformation regularity of nitrogen in aqueous product which was derived from hydrothermal liquefaction of sewage sludge under different operating conditions. Results showed, within the studied temperature scope and time span, the concentration of total nitrogen (TN) fluctuated in the range of 2867.62 mg x L(-1) to 4171.30 mg x L(-1). The two major exiting formation of nitrogen in aqueous product was ammonia nitrogen (NH4+ -N) and organic nitrogen (Org-N). NH4+ -N possessed 54.6%-90.7% of TN, while Org-N possessed 7.4%-44.5%. The concentration of nitrate nitrogen (NO- -N) was far more less than NH4+ -N and Org-N. Temperature had a great influence on the transformation regularity of nitrogen. Both the concentration of TN and Org-N increased accordingly to the increase of reaction temperature. With the reaction time prolonging, the concentration of TN and Org-N increased, while the concentration of NH4+ -N increased first, then became stationary, and then decreased slightly.

Condensate subcooling near tube exit during horizontal in-tube condensation

International Nuclear Information System (INIS)

Hashizume, K.; Abe, N.; Ozeki, T.

1992-01-01

In-tube condensation is encountered in various applications for heat exchangers, such as domestic air-conditioning equipment, industrial air-cooled condensers, and moisture separator reheaters (MSRs) for nuclear power pants. Numerous research work has been conducted to predict the condensation heat transfer coefficient, and we have now enough information for thermal design of heat exchangers with horizontal in-tube condensation. Most of the research is analytical and/or experimental work in the annular or stratified flow regime, or experimental work on bulk condensation, i.e., from saturated vapor to complete condensation. On the other hand, there exist few data about the heat transfer phenomena in the very lower-quality region near the tube exit. The purpose of this paper is to clarify the condensation heat transfer phenomena near the tube exit experimentally and analytically, and to predict the degree of condensate subcooling

Predictors of Academic Success for the National Board Dental Hygiene Examination and the Southern Regional Testing Agency Clinical Exam

Science.gov (United States)

Efurd, Melissa G.

2012-01-01

The purpose for conducting this study was to investigate and describe the relationship between applicant criteria for a dental hygiene program and subsequent outcomes on credentialing exams: the National Board Dental Hygiene Exam and the Southern Regional Testing Agency clinical exam. Because admission criteria play a crucial role in applicant…

Corpo e masculinidade na revista VIP Exame Body and masculinity in the magazine VIP Exame

Directory of Open Access Journals (Sweden)

Marko Monteiro

2001-01-01

Full Text Available Nesse artigo elaboro comentários teóricos acerca de novas formas de se vivenciar a corporalidade presentes contemporaneamente, a partir da análise da revista masculina VIP Exame. O texto baseia-se numa pesquisa que incluiu uma observação dentro da redação da revista e análise de materiais impressos, centrando-se na forma como a revista aborda o corpo masculino e coloca a preocupação com a aparência como importante para uma masculinidade bem sucedida. Com base nestes dados busco avaliar, a partir de perspectivas feministas e sobre o corpo, a influência do valor dado ao corpo e ao seu monitoramento reflexivo na constituição de identidades de gênero.In this article I elaborate theoretical comments on the subject of corporeality and the new forms of experiencing the body that are present in contemporary times. On the basis of a research with a Brazilian men's magazine, VIP Exame, which involved the analysis of issues of the magazine as well as an observation of the working process of the reporters and journalists, I focus my comments on the way the masculine body is treated by the magazine and how a discourse emerges on masculinity where attention to "good looks" becomes an important feature of a successful masculinity. On the basis of these observations I go on to discuss feminist and other theories of the subject, in order to understand how the reflexive monitoring of the body is increasingly important in the constitution of gender identities.

An iterative method for Tikhonov regularization with a general linear regularization operator

NARCIS (Netherlands)

Hochstenbach, M.E.; Reichel, L.

2010-01-01

Tikhonov regularization is one of the most popular approaches to solve discrete ill-posed problems with error-contaminated data. A regularization operator and a suitable value of a regularization parameter have to be chosen. This paper describes an iterative method, based on Golub-Kahan

Ecologies of Ideologies: Explaining Party Entry and Exit in West-European Parliaments, 1945-2013

OpenAIRE

van de Wardt, M.; Berkhout, J.; Vermeulen, F.

2017-01-01

This study introduces a population-ecological approach to the entry and exit of political parties. A primary proposition of population ecology is that organizational entry and exit depends on the number of organizations already present: that is, density. We propose that political parties mainly experience competition from parties in the same ideological niche (left, centre, right). Pooled time-series analyses of 410 parties, 263 elections and 18 West-European countries largely support our exp...

Web-based online system for recording and examing of events in power plants

International Nuclear Information System (INIS)

Seyd Farshi, S.; Dehghani, M.

2004-01-01

Occurrence of events in power plants could results in serious drawbacks in generation of power. This suggests high degree of importance for online recording and examing of events. In this paper an online web-based system is introduced, which records and examines events in power plants. Throughout the paper, procedures for design and implementation of this system, its features and results gained are explained. this system provides predefined level of online access to all data of events for all its users in power plants, dispatching, regional utilities and top-level managers. By implementation of electric power industry intranet, an expandable modular system to be used in different sectors of industry is offered. Web-based online recording and examing system for events offers the following advantages: - Online recording of events in power plants. - Examing of events in regional utilities. - Access to event' data. - Preparing managerial reports

Why do some women refuse to allow male residents to perform pelvic exams?

Science.gov (United States)

Rifkin, Julie I; Shapiro, Howard; Regensteiner, Judith G; Stotler, Jeanne K; Schmidt, Betty

2002-10-01

Many women who receive medical care in residency training clinics refuse to allow male residents to perform their pelvic exams. This study was conducted to identify which women were most likely to refuse and to learn their reasons for refusing. From January to March 1997, a questionnaire was given to all women entering a Tri-County Health office and a Planned Parenthood clinic, both in the Denver, Colorado, metropolitan area, who consented to participate in the study. Data from the questionnaire were analyzed using a statistical software package. A total of 1,437 women entered the clinics during the study period. Of these patients, 1,078 consented to complete the questionnaire. Seven of these 1,078 women did not complete the questionnaire. Women who did not know the training level of the resident performing the pelvic exam were more likely to refuse than were women who knew the training level of the resident (p =.001), but many women preferred a female physician regardless of the physician's training level. Fifty-eight percent said they would allow a male resident to observe a female attending physician perform the exam, compared with 36% who said they would allow a male resident to observe if the attending physician was a man. Common statements from those who would refuse were: "I am just more comfortable with a female," "Women do not want men to examine their private body parts," and "Women explain things better." A woman's knowledge of the resident's training level correlates with her willingness to have a pelvic exam performed by a male resident. Women who said they would refuse a pelvic exam performed by a male resident gave specific reasons for their decision.

Cheating on Exams: The Case of Israeli Students

Science.gov (United States)

Siniver, Erez

2013-01-01

The phenomenon of cheating on exams, which harms both the reputation of an academic institution and the students who don't cheat, is becoming increasingly common. We attempt to shed light on this phenomenon using data from a survey of graduates of the College of Management Academic Studies in Israel. Three aspects of the problem are examined: 1)…

Sleep and Final Exam Performance in Introductory Physics

Science.gov (United States)

Coletta, Vincent; Wikholm, Colin; Pascoe, Daniel

2018-01-01

Most physics instructors believe that adequate sleep is important in order for students to perform well on problem solving, and many instructors advise students to get plenty of sleep the night before an exam. After years of giving such advice to students at Loyola Marymount University (LMU), one of us decided to find out how many hours students…

Regular Expression Pocket Reference

CERN Document Server

Stubblebine, Tony

2007-01-01

This handy little book offers programmers a complete overview of the syntax and semantics of regular expressions that are at the heart of every text-processing application. Ideal as a quick reference, Regular Expression Pocket Reference covers the regular expression APIs for Perl 5.8, Ruby (including some upcoming 1.9 features), Java, PHP, .NET and C#, Python, vi, JavaScript, and the PCRE regular expression libraries. This concise and easy-to-use reference puts a very powerful tool for manipulating text and data right at your fingertips. Composed of a mixture of symbols and text, regular exp

Spanish exit polls. Sampling error or nonresponse bias?

Directory of Open Access Journals (Sweden)

Pavía, Jose M.

2016-09-01

Full Text Available Countless examples of misleading forecasts on behalf of both pre-election and exit polls can be found all over the world. Non-representative samples due to differential nonresponse have been claimed as being the main reason for inaccurate exit-poll projections. In real inference problems, it is seldom possible to compare estimates and true values. Electoral forecasts are an exception. Comparisons between estimates and final outcomes can be carried out once votes have been tallied. In this paper, we examine the raw data collected in seven exit polls conducted in Spain and test the likelihood that the data collected in each sampled voting location can be considered as a random sample of actual results. Knowing the answer to this is relevant for both electoral analysts and forecasters as, if the hypothesis is rejected, the shortcomings of the collected data would need amending. Analysts could improve the quality of their computations by implementing local correction strategies. We find strong evidence of nonsampling error in Spanish exit polls and evidence that the political context matters. Nonresponse bias is larger in polarized elections and in a climate of fearExiste un gran número de ejemplos de predicciones inexactas obtenidas a partir tanto de encuestas pre-electorales como de encuestas a pie de urna a lo largo del mundo. La presencia de tasas de no-respuesta diferencial entre distintos tipos de electores ha sido la principal razón esgrimida para justificar las proyecciones erróneas en las encuestas a pie de urna. En problemas de inferencia rara vez es posible comparar estimaciones y valores reales. Las predicciones electorales son una excepción. La comparación entre estimaciones y resultados finales puede realizarse una vez los votos han sido contabilizados. En este trabajo, examinamos los datos brutos recogidos en siete encuestas a pie de urna realizadas en España y testamos la hipótesis de que los datos recolectados en cada punto

76 FR 56879 - Open Meeting of the Taxpayer Advocacy Panel Small Business/Self Employed Correspondence Exam...

Science.gov (United States)

2011-09-14

... Small Business/Self Employed Correspondence Exam Practitioner Engagement Project Committee AGENCY... Taxpayer Advocacy Panel Small Business/ Self Employed Correspondence Exam Practitioner Engagement Project... Advisory Committee Act, 5 U.S.C. App. (1988) that an open meeting of the Taxpayer Advocacy Panel Small...

76 FR 37200 - Open Meeting of the Taxpayer Advocacy Panel Small Business/Self Employed Correspondence Exam...

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2011-06-24

... Small Business/Self Employed Correspondence Exam Practitioner Engagement Project Committee AGENCY... Taxpayer Advocacy Panel Small Business/ Self Employed Correspondence Exam Practitioner Engagement Project... Act, 5 U.S.C. App. (1988) that an open meeting of the Taxpayer Advocacy Panel Small Business/Self...

76 FR 22170 - Open Meeting of the Taxpayer Advocacy Panel Small Business/Self Employed Correspondence Exam...

Science.gov (United States)

2011-04-20

... Small Business/Self Employed Correspondence Exam Practitioner Engagement Project Committee AGENCY... Taxpayer Advocacy Panel Small Business/ Self Employed Correspondence Exam Practitioner Engagement Project... Act, 5 U.S.C. App. (1988) that an open meeting of the Taxpayer Advocacy Panel Small Business/Self...

76 FR 63715 - Open Meeting of the Taxpayer Advocacy Panel Small Business/Self Employed Correspondence Exam...

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2011-10-13

... Small Business/Self Employed Correspondence Exam Practitioner Engagement Project Committee AGENCY... Taxpayer Advocacy Panel Small Business/ Self Employed Correspondence Exam Practitioner Engagement Project... Advisory Committee Act, 5 U.S.C. App. (1988) that an open meeting of the Taxpayer Advocacy Panel Small...

76 FR 46897 - Open Meeting of the Taxpayer Advocacy Panel Small Business/Self Employed Correspondence Exam...

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2011-08-03

... Small Business/Self Employed Correspondence Exam Practitioner Engagement Project Committee AGENCY... Taxpayer Advocacy Panel Small Business/ Self Employed Correspondence Exam Practitioner Engagement Project... Advisory Committee Act, 5 U.S.C. App. (1988) that an open meeting of the Taxpayer Advocacy Panel Small...

76 FR 6189 - Open Meeting of the Taxpayer Advocacy Panel Small Business/Self Employed Correspondence Exam...

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2011-02-03

... Small Business/Self Employed Correspondence Exam Practitioner Engagement Project Committee AGENCY... Taxpayer Advocacy Panel Small Business/ Self Employed Correspondence Exam Practitioner Engagement Project... Act, 5 U.S.C. App. (1988) that an open meeting of the Taxpayer Advocacy Panel Small Business/Self...

76 FR 10942 - Open Meeting of the Taxpayer Advocacy Panel Small Business/Self Employed Correspondence Exam...

Science.gov (United States)

2011-02-28

... Small Business/Self Employed Correspondence Exam Practitioner Engagement Project Committee AGENCY... Taxpayer Advocacy Panel Small Business/ Self Employed Correspondence Exam Practitioner Engagement Project... Act, 5 U.S.C. App. (1988) that an open meeting of the Taxpayer Advocacy Panel Small Business/Self...

The importance of the first ultrasonic exam of newborn hips.

Science.gov (United States)

Grubor, Predrag; Asotic, Mithat; Biscevic, Mirza; Grubor, Milan

2012-01-01

Developmental hip disorder (DHD) is a disorder in development of the acetabulum which remains abrupt (dysplasia) and probably consequential cranialisation of the femur head (luxation). The aim of this paper is to establish the total number of DHD and its subtypes at the first clinical and ultrasound exam of newborns in a retrospective-prospective study made in the period from 1st Jan 2006 through to 31 Dec 2010 at the Clinic for orthopaedics and traumatology in Banja Luka. In total 6132 patients were examined and 99 cases diagnosed with DHD (dysplasia and luxation). Ultrasonic exam was done by means of electronic probe of 5-12 MHz according to standard method after Graph. Girls were significantly more present (96%). Positive family anamnesis on DHD was present with 7.8% examinee, mainly with primiparas, and/ or with 77.8% children with DHD. Dominant intrauterine risk factors for DHD were: mal position of foetus in uterus (78.6%), oligoamnion (17.9%), malformation of the spinal column of the pregnant woman (3.6%), whereas with 38.4% of children with a certain form of DHD the following were found: breech presentation, caesarean section or twin pregnancy. The clinical exam indicated DHD with 8.87% examinee, out of which hip looseness was found with 5% examinees. Ultrasonic finding was positive with 99 examinee, that is with 1.61% of them (deficient and badly formed acetabulum, sleeked protrusion; 8 luxations and 91 dysplasia). Prophylactic measures were requested by 58.6% children (abductive bending and exercises), whereas 41.4 % needed non-intervention therapeutic measures (traction, Pavlik's straps, Graph's knickers, plastering), after which there were no children needing surgical correction of DHD. These data indicate that clinical exam is unreliable for DHD diagnostics, and that Ultrasonic diagnostics and treatment of DHD should start as early as possible applying atraumatic helping devices and procedures in the period when all structures are elastic, flexible and

OCP exam 1Z0-063

CERN Document Server

Freeman, Robert G

2014-01-01

An updated guide for an updated certification exam! As the most popular database software in the world, Oracle Database 12c has been updated for the first time in nearly six years and the changes are significant. This study guide reviews how Oracle 12c allows multiple instances to be used simultaneously via the cloud. You''ll sharpen your skills to prepare for the three levels of certification: Oracle Certified Associate, Oracle Certified Professional, and Oracle Certified Master. Workbook exercise appendix, test engine, chapter review questions, electronic flashcards, searchable PDF glossary

TH-C-18A-09: Exam and Patient Parameters Affecting the DNA Damage Response Following CT Studies

International Nuclear Information System (INIS)

Elgart, S; Adibi, A; Bostani, M; Ruehm, S; Enzmann, D; McNitt-Gray, M; Iwamoto, K

2014-01-01

Purpose: To identify exam and patient parameters affecting the biological response to CT studies using in vivo and ex vivo blood samples. Methods: Blood samples were collected under IRB approval from 16 patients undergoing clinically-indicated CT exams. Blood was procured prior to, immediately after and 30minutes following irradiation. A sample of preexam blood was placed on the patient within the exam region for ex vivo analysis. Whole blood samples were fixed immediately following collection and stained for γH2AX to assess DNA damage response (DDR). Median fluorescence of treated samples was compared to non-irradiated control samples for each patient. Patients were characterized by observed biological kinetic response: (a) fast — phosphorylation increased by 2minutes and fell by 30minutes, (b) slow — phosphorylation continued to increase to 30minutes and (c) none — little change was observed or irradiated samples fell below controls. Total dose values were normalized to exam time for an averaged dose-rate in dose/sec for each exam. Relationships between patient biological responses and patient and exam parameters were investigated. Results: A clearer dose response at 30minutes is observed for young patients (<61yoa; R2>0.5) compared to old patients (>61yoa; R 2 <0.11). Fast responding patients were significantly younger than slow responding patients (p<0.05). Unlike in vivo samples, age did not significantly affect the patient response ex vivo. Additionally, fast responding patients received exams with significantly smaller dose-rate than slow responding patients (p<0.05). Conclusion: Age is a significant factor in the biological response suggesting that DDR may be more rapid in a younger population and slower as the population ages. Lack of an agerelated response ex vivo suggests a systemic response to radiation not present when irradiated outside the body. Dose-rate affects the biological response suggesting that patient response may be related to scan

Validating the Use of AP® Exam Scores for College Course Placement. Research Report 2013-2

Science.gov (United States)

Patterson, Brian F.; Ewing, Maureen

2013-01-01

The Advanced Placement Program® (AP®) was created to provide access to rigorous, college-level curricula to motivated and prepared high school students. This study evaluated whether the AP Exam scores from the summative exams associated with 10 courses were valid for the placement of students into higher-level college courses in the subject area…

Repressive histone methylation regulates cardiac myocyte cell cycle exit.

Science.gov (United States)

El-Nachef, Danny; Oyama, Kyohei; Wu, Yun-Yu; Freeman, Miles; Zhang, Yiqiang; Robb MacLellan, W

2018-05-22

Mammalian cardiac myocytes (CMs) stop proliferating soon after birth and subsequent heart growth comes from hypertrophy, limiting the adult heart's regenerative potential after injury. The molecular events that mediate CM cell cycle exit are poorly understood. To determine the epigenetic mechanisms limiting CM cycling in adult CMs (ACMs) and whether trimethylation of lysine 9 of histone H3 (H3K9me3), a histone modification associated with repressed chromatin, is required for the silencing of cell cycle genes, we developed a transgenic mouse model where H3K9me3 is specifically removed in CMs by overexpression of histone demethylase, KDM4D. Although H3K9me3 is found across the genome, its loss in CMs preferentially disrupts cell cycle gene silencing. KDM4D binds directly to cell cycle genes and reduces H3K9me3 levels at these promotors. Loss of H3K9me3 preferentially leads to increased cell cycle gene expression resulting in enhanced CM cycling. Heart mass was increased in KDM4D overexpressing mice by postnatal day 14 (P14) and continued to increase until 9-weeks of age. ACM number, but not size, was significantly increased in KDM4D expressing hearts, suggesting CM hyperplasia accounts for the increased heart mass. Inducing KDM4D after normal development specifically in ACMs resulted in increased cell cycle gene expression and cycling. We demonstrated that H3K9me3 is required for CM cell cycle exit and terminal differentiation in ACMs. Depletion of H3K9me3 in adult hearts prevents and reverses permanent cell cycle exit and allows hyperplastic growth in adult hearts in vivo. Copyright © 2017. Published by Elsevier Ltd.

46 CFR 71.50-3 - Drydock examination, internal structural examination, underwater survey, and alternate hull exam...

Science.gov (United States)

2010-10-01

..., underwater survey, and alternate hull exam intervals. 71.50-3 Section 71.50-3 Shipping COAST GUARD...-3 Drydock examination, internal structural examination, underwater survey, and alternate hull exam... wooden hulls must undergo two drydock and two internal structural examinations within any five year...

76 FR 17995 - Open Meeting of the Taxpayer Advocacy Panel Small Business/Self Employed Correspondence Exam...

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2011-03-31

... Small Business/Self Employed Correspondence Exam Practitioner Engagement Project Committee AGENCY... Taxpayer Advocacy Panel Small Business/ Self Employed Correspondence Exam Practitioner Engagement Project... Section 10(a)(2) of the Federal Advisory Committee Act, 5 U.S.C. App. (1988) that an open meeting of the...

76 FR 2193 - Open Meeting of the Taxpayer Advocacy Panel Small Business/Self Employed Correspondence Exam...

Science.gov (United States)

2011-01-12

... Small Business/Self Employed Correspondence Exam Practitioner Engagement AGENCY: Internal Revenue... Small Business/ Self Employed Correspondence Exam Practitioner Engagement will be conducted. The...: Notice is hereby given pursuant to Section 10(a)(2) of the Federal Advisory Committee Act, 5 U.S.C. App...

The Right of Exit in the Context of Multiculturalism

Directory of Open Access Journals (Sweden)

Ana Maria D'Ávila Lopes

2015-12-01

Full Text Available http://dx.doi.org/10.5007/2177-7055.2015v36n71p155 The terrorist attack on the Twin Towers in the United States provoked heated discussions about the need to limit and control the performance of some cultural minorities, as well as to create mechanisms to protect members of these minorities against the decisions taken by the group. In this context, this paper aims to analyze the possibilities and limits of the right of exit in the context of Multiculturalism. To this end, a literature research was performed in national and foreign doctrine. After analyzing the data, it was found that the right to exit is a valuable mechanism for protecting members of cultural minorities, however, there are situations, especially in cases where the values of the group are internalized by the members, in which this right is insufficient and should be supplemented by other human rights.

KLF4 Nuclear Export Requires ERK Activation and Initiates Exit from Naive Pluripotency.

Science.gov (United States)

Dhaliwal, Navroop K; Miri, Kamelia; Davidson, Scott; Tamim El Jarkass, Hala; Mitchell, Jennifer A

2018-04-10

Cooperative action of a transcription factor complex containing OCT4, SOX2, NANOG, and KLF4 maintains the naive pluripotent state; however, less is known about the mechanisms that disrupt this complex, initiating exit from pluripotency. We show that, as embryonic stem cells (ESCs) exit pluripotency, KLF4 protein is exported from the nucleus causing rapid decline in Nanog and Klf4 transcription; as a result, KLF4 is the first pluripotency transcription factor removed from transcription-associated complexes during differentiation. KLF4 nuclear export requires ERK activation, and phosphorylation of KLF4 by ERK initiates interaction of KLF4 with nuclear export factor XPO1, leading to KLF4 export. Mutation of the ERK phosphorylation site in KLF4 (S132) blocks KLF4 nuclear export, the decline in Nanog, Klf4, and Sox2 mRNA, and differentiation. These findings demonstrate that relocalization of KLF4 to the cytoplasm is a critical first step in exit from the naive pluripotent state and initiation of ESC differentiation. Copyright © 2018 The Authors. Published by Elsevier Inc. All rights reserved.

Organized medicine and Scandinavian professional unionism: hospital policies and exit options in Denmark and Sweden.

Science.gov (United States)

Heidenheimer, A J; Johansen, L N

1985-01-01

Strikes by junior hospital doctors over the issue of on-call remuneration in Denmark and Sweden in 1981 are analyzed to clarify the impact of public-sector cost-control policies on intra- and interprofessional solidarity within the Scandinavian professional peak associations. The junior doctors' grievances could find expression either through increased "voice" within the medical negotiating machinery, or by pursuing the exit option in having the medical associations quit the peak associations. The article explains why the "exit" option was selected in Denmark, while in Sweden the granting of additional voice helped persuade the medical association to withdraw its exit threat and to remain within the peak association. The two cases are interpreted as presaging a divergence in the paths being taken by the various Scandinavian welfare states.

Ecologies of ideologies: Explaining party entry and exit in West-European parliaments, 1945–2013

Science.gov (United States)

Berkhout, Joost; Vermeulen, Floris

2016-01-01

This study introduces a population-ecological approach to the entry and exit of political parties. A primary proposition of population ecology is that organizational entry and exit depends on the number of organizations already present: that is, density. We propose that political parties mainly experience competition from parties in the same ideological niche (left, centre, right). Pooled time-series analyses of 410 parties, 263 elections and 18 West-European countries largely support our expectations. We find that political parties are more likely to exit when density within their niche increases. Also there is competition between adjacent ideological niches, i.e. between centrist and right-wing niches. In contrast to our expectations, neither density nor institutional rules impact party entry. This raises important questions about the rationale of prospective entrants. PMID:29046613

Development of a testlet generator in re-engineering the Indonesian physics national-exams

Science.gov (United States)

Mindyarto, Budi Naini; Mardapi, Djemari; Bastari

2017-08-01

The Indonesian Physics national-exams are end-of-course summative assessments that could be utilized to support the assessment for learning in physics educations. This paper discusses the development and evaluation of a testlet generator based on a re-engineering of Indonesian physics national exams. The exam problems were dissected and decomposed into testlets revealing the deeper understanding of the underlying physical concepts by inserting a qualitative question and its scientific reasoning question. A template-based generator was built to facilitate teachers in generating testlet variants that would be more conform to students' scientific attitude development than their original simple multiple-choice formats. The testlet generator was built using open source software technologies and was evaluated focusing on the black-box testing by exploring the generator's execution, inputs and outputs. The results showed the correctly-performed functionalities of the developed testlet generator in validating inputs, generating testlet variants, and accommodating polytomous item characteristics.

A smooth exit from eternal inflation?

Science.gov (United States)

Hawking, S. W.; Hertog, Thomas

2018-04-01

The usual theory of inflation breaks down in eternal inflation. We derive a dual description of eternal inflation in terms of a deformed Euclidean CFT located at the threshold of eternal inflation. The partition function gives the amplitude of different geometries of the threshold surface in the no-boundary state. Its local and global behavior in dual toy models shows that the amplitude is low for surfaces which are not nearly conformal to the round three-sphere and essentially zero for surfaces with negative curvature. Based on this we conjecture that the exit from eternal inflation does not produce an infinite fractal-like multiverse, but is finite and reasonably smooth.

Factors influencing the stay-exit intention of small livestock farmers

NARCIS (Netherlands)

Carter-Leal, Luis M.; Oude-Lansink, Alfons; Saatkamp, Helmut

2018-01-01

This study analyses the factors driving the stay-exit intention of small livestock farmers located in southern Chile. Technical, economic, and social characteristics from 212 farmers were included in this study. Through an empirical probit model we identified the variables that should be considered

Exit From the High Street

DEFF Research Database (Denmark)

Bly, Sarah; Gwozdz, Wencke; Reisch, Lucia

2015-01-01

by focusing on a previously under-researched group of consumers – ‘sustainable fashion consumption pioneers’ who actively engage and shape their own discourse around the notion of sustainable fashion consumption. These pioneers actively create and communicate strategies for sustainable fashion behaviour...... of sustainable fashion including such key behaviours as purchasing fewer garments of higher quality, exiting the retail market, purchasing only second-hand fashion goods and sewing or upgrading their own clothing. Central to much of these behaviours is the notion that personal style, rather than fashion, can...... bridge the potential disconnect between sustainability and fashion while also facilitating a sense of well-being not found in traditional fashion consumption. As such, our research suggests that for these consumers sustainability is as much about reducing measurable environmental or social impacts...

ADVANCED SECURE EXAM MANAGEMENT SYSTEM THROUGH QR CODE BASED AUTHENTICATION

OpenAIRE

MR. OMKAR RAJENDRA URUNKAR , PROF. S. A. JOSHI

2018-01-01

M-Learning has enhanced the e-learning by making the learning process learner-centered. However, obligating exam security in environments which are open, every student has devices or Laptop connected to a Wi-Fi network or internet.

A 9-hour biochemistry exam. An iron man competition or a good way of evaluating undergraduate students?

Directory of Open Access Journals (Sweden)

Alexandre B. Sé

2005-07-01

Full Text Available In a previous work we discus sed the capability of peer-tutors to write good true-or-fals e biochemistryexams (Sé et al. Are tutor-students capable of writing good biochemistry exams? SBBq 2004, abstractK-18. We are currently reporting the experience of 12 semesters in which a pair of peer-tutors ,coordinated by a professor, write a discursive exam. It has themes like obesity, cholesterol, diabetesand alimentation as de scribed in Passos et al, A lunch of pizza and pasta used for the learning ofmetabolic biochemistry, SBBq 2003, abstract K-10. The themes are chosen basedon 2 articles fromimportant international journals , such as the American Journal of Physiology. These articles have beenpreviously discussed in an Advanced Biochemistry class with all peer-tutors and the professor. Thequestions are base di practical situations, ac cording to what was exposed previously in a text, whichis written by the peer-tutors and base don the articles. The focus of the exam is the discussion of thesituation exposed and the development of a line of thoughts instead of just memorizing biochemic alconcepts . In order to facilitate this process, the students are divided in pairs to answer the questions(the y must have a di? erence in the previous exam grade lower than 1.3. They are allowed to bringbooks and class notes to the test to help the discussion. To avoid the rush and let the students discussand think freely, the y have 9 hours to do the exam . During this period, we evaluated the qualityof the 9-h-examby a survey at the end of it. When asked to give a 0-to- 4 score re garding (a thedi? culty level of the exam (4 m ean ve ry hard, (b if the exams makes an appropriate evaluation ofbiochemical knowledge (4 m ean it do e s (c if the exams make you re ason ab out applied biochemistry(4 me an it do es , the scores were 3.14, 3.61 and 3.82 respective ly (n=469. Our survey show thestudents good acceptance of the 9- h-e xam. The grades along 12 semesters have

Indicação de exames pré-operatórios segundo critérios clínicos: necessidade de supervisão

Directory of Open Access Journals (Sweden)

Aline Pallaoro Garcia

2014-01-01

Full Text Available Justificativa e objetivos: a solicitação indiscriminada de exames complementares na avaliação pré-anestésica é comum na prática clínica e implica custos adicionais e a possibilidade de resultados falso-positivos. Os objetivos desta pesquisa foram analisar se os exames pré-operatórios em cirurgias eletivas são solicitados segundo critério clínico e avaliar os custos desnecessários para a instituição. Métodos: foram avaliadas as solicitações de exames pré-operatórios em pacientes adultos submetidos a cirurgias eletivas não cardíacas. Os exames foram solicitados pelos cirurgiões, conforme protocolo do Serviço de Anestesia. Foram avaliados dados demográficos, estado físico, comorbidades e tipo de exame complementar solicitado. Os exames feitos foram comparados com os exames indicados. O custo dos exames foi baseado na tabela Datasus. Resultados: foram avaliados 1.063 pacientes. Verificou-se que 41,9% dos exames feitos nos pacientes classificados como ASA I não estavam indicados. No grupo de risco ASA II foram feitos 442 exames (17,72% sem necessidade. Perceberam-se elevadas porcentagens na solicitação de hemograma, creatinina, coagulograma, raios X de tórax e ECG nos grupos ASA I-II. Apenas 40 (5,25% dos exames feitos no grupo ASA III não estavam indicados. Nos pacientes do grupo ASA IV, 22,5% dos exames necessários não foram feitos. Ressalta-se uma economia anual de 13% (R$1.923,13 caso os exames fossem feitos conforme o protocolo. Conclusões: os exames pré-operatórios nem sempre são solicitados de acordo com critérios clínicos, o que resulta em maiores custos para a instituição.

[The touched masculinity: a discussion about the digital rectal exam for prostate cancer prevention].

Science.gov (United States)

Gomes, Romeu; do Nascimento, Elaine Ferreira; Rebello, Lúcia Emília Figueiredo de Sousa; de Araújo, Fábio Carvalho

2008-01-01

The present study aims at analyzing the meanings attributed to the digital rectal exam, seeking to problematize questions underlying the masculine discourse on the basis of aspects of the hegemonic masculinity model. Semi-structured interviews were held with 28 men in the city of Rio de Janeiro, in 2004. Among the main results is the idea that the digital rectal exam is something that violates an interdicted space, something that compromises the current understanding of masculinity, shall say, the digital rectal exam does not only affect the prostate, it also affects the masculinity, puts it to shame. We conclude that for understanding and problematizing the questions related to the prostate cancer prevention in special, and to the question of taking care of oneself from the masculine perspective in general, we need to consider the structural and symbolic aspects that underlie these questions.

Film techniques in radiotherapy for treatment verification, determination of patient exit dose, and detection of localization error

International Nuclear Information System (INIS)

Haus, A.G.; Marks, J.E.

1974-01-01

In patient radiation therapy, it is important to know that the diseased area is included in the treatment field and that normal anatomy is properly shielded or excluded. Since 1969, a film technique developed for imaging of the complete patient radiation exposure has been applied for treatment verification and for the detection and evaluation of localization errors that may occur during treatment. The technique basically consists of placing a film under the patient during the entire radiation exposure. This film should have proper sensitivity and contrast in the exit dose exposure range encountered in radiotherapy. In this communication, we describe how various exit doses fit the characteristic curve of the film; examples of films exposed to various exit doses; the technique for using the film to determine the spatial distribution of the absorbed exit dose; and types of errors commonly detected. Results are presented illustrating that, as the frequency of use of this film technique is increased, localization error is reduced significantly

Exit points, on plasma, of lost fast ions during NBI in TJ-II

International Nuclear Information System (INIS)

Guasp, J.

1995-09-01

The distribution of the exit points, on plasma border, for the lost fast ions during tangential balanced NBI in TJ-II helical axis Stellarator is theoretically analysed, as well for direct as for delayed losses. The link between the position of those exit points and the corresponding at birth, orbits and drifts is analysed also, it is shown that such relation is rather independent of beam energy and plasma density and is mainly related to the magnetic configuration characteristics. This study is a needed intermediate step to the analysis of impacts of those ions on the vacuum vessel of TJ-II

Monetary Policy of the Federal Reserve System from the Perspective of Exit Strategies

Directory of Open Access Journals (Sweden)

Aleksandra Nocoń

2015-07-01

Full Text Available Central banks, after the experience of the global financial crisis, are now starting the implementation of the exit strategies, which are the process of normalization of monetary policy. The pace of monetary policy normalization process depends on the market reaction to central bank's decisions and macroeconomic conditions, in which they will be implemented. The main aim of the study is to present the principles of the exit strategy of the Federal Reserve System (Fed, on the background of the changes that have occurred in the United States within the monetary policy during the global financial crisis.

SEC16 in COPII coat dynamics at ER exit sites

NARCIS (Netherlands)

Sprangers, Joep; Rabouille, Catherine

Protein export from the endoplasmic reticulum (ER), the first step in protein transport through the secretory pathway, is mediated by coatomer protein II (COPII)-coated vesicles at ER exit sites. COPII coat assembly on the ER is well understood and the conserved large hydrophilic protein Sec16

A Quantitative Analysis of Uncertainty in the Grading of Written Exams in Mathematics and Physics

Science.gov (United States)

Hammer, Hugo Lewi; Habib, Laurence

2016-01-01

The most common way to grade students in courses at university and university college level is to use final written exams. The aim of final exams is generally to provide a reliable and a valid measurement of the extent to which a student has achieved the learning outcomes for the course. A source of uncertainty in grading students based on an exam…

Explicit solutions for exit-only radioactive decay chains

International Nuclear Information System (INIS)

Yuan, Ding; Kernan, Warnick

2007-01-01

In this study, we extended Bateman's [Proc. Cambridge Philos. Soc. 15, 423 (1910)] original work for solving radioactive decay chains and explicitly derived analytic solutions for generic exit-only radioactive decay problems under given initial conditions. Instead of using the conventional Laplace transform for solving Bateman's equations, we used a much simpler algebraic approach. Finally, we discuss methods of breaking down certain classes of large decay chains into collections of simpler chains for easy handling

The geometry of continuum regularization

International Nuclear Information System (INIS)

Halpern, M.B.

1987-03-01

This lecture is primarily an introduction to coordinate-invariant regularization, a recent advance in the continuum regularization program. In this context, the program is seen as fundamentally geometric, with all regularization contained in regularized DeWitt superstructures on field deformations

Nuclear energy - no thanks. The long way to the exit

International Nuclear Information System (INIS)

Sternstein, Wolfgang

2013-01-01

The anti-nuclear movement is one of the most successful social movements of the recent history of Germany and firmly anchored in huge parts of the population. After a struggle lasting more than forty years it has nearly reached its aims: The exit from nuclear energy and a rethinking in direction of alternative energy concepts. Decisive for the nuclear exit of the Federal government were thereby less the nuclear accidents of Harrisburg (1979), Chernobyl (1986), and Fukushima (2011) but rather the decades-long, stubborn commitment of numerous citizens as well as of citizen's initiatives. ''Nuclear energy - no thanks.'' is the analysis of the citizen's movement from Wyhl until Gorleben. The nonviolent activist and peace researcher Sternstein was there from the beginning and reports about anger and indignation that has been condensed to the social movement with political objectives. Extremely helpful are thereby the methods and strategies of nonviolent actions described by him.

Regular expression containment

DEFF Research Database (Denmark)

Henglein, Fritz; Nielsen, Lasse

2011-01-01

We present a new sound and complete axiomatization of regular expression containment. It consists of the conventional axiomatiza- tion of concatenation, alternation, empty set and (the singleton set containing) the empty string as an idempotent semiring, the fixed- point rule E* = 1 + E × E......* for Kleene-star, and a general coin- duction rule as the only additional rule. Our axiomatization gives rise to a natural computational inter- pretation of regular expressions as simple types that represent parse trees, and of containment proofs as coercions. This gives the axiom- atization a Curry......-Howard-style constructive interpretation: Con- tainment proofs do not only certify a language-theoretic contain- ment, but, under our computational interpretation, constructively transform a membership proof of a string in one regular expres- sion into a membership proof of the same string in another regular expression. We...

Supersymmetric dimensional regularization

International Nuclear Information System (INIS)

Siegel, W.; Townsend, P.K.; van Nieuwenhuizen, P.

1980-01-01

There is a simple modification of dimension regularization which preserves supersymmetry: dimensional reduction to real D < 4, followed by analytic continuation to complex D. In terms of component fields, this means fixing the ranges of all indices on the fields (and therefore the numbers of Fermi and Bose components). For superfields, it means continuing in the dimensionality of x-space while fixing the dimensionality of theta-space. This regularization procedure allows the simple manipulation of spinor derivatives in supergraph calculations. The resulting rules are: (1) First do all algebra exactly as in D = 4; (2) Then do the momentum integrals as in ordinary dimensional regularization. This regularization procedure needs extra rules before one can say that it is consistent. Such extra rules needed for superconformal anomalies are discussed. Problems associated with renormalizability and higher order loops are also discussed

Knowledge Assessment of Food Safety Managers in Utah and Its Implications on the Exam and Instruction

Science.gov (United States)

Nummer, Brian A.; Guy, Stanley M.; Bentley, Joanne P. H.

2010-01-01

Food Safety Manager's Certification is offered through a state-local Extension partnership in Utah using an online course management system. Exams and course materials were created by an Extension Specialist at Utah State Univ. Extension Agents provide exam and curriculum facilitation in each county. This form of distance education enables access…

Reading Quizzes Improve Exam Scores for Community College Students

Science.gov (United States)

Pape-Lindstrom, Pamela; Eddy, Sarah; Freeman, Scott

2018-01-01

To test the hypothesis that adding course structure may encourage self-regulated learning skills resulting in an increase in student exam performance in the community college setting, we added daily preclass online, open-book reading quizzes to an introductory biology course. We compared three control terms without reading quizzes and three…

Evaluation of skin entrance radiation dose in pediatric patients undergoing chest X-rays exams; Avaliacao da dose de entrada na pele em pacientes pediatricos submetidos a exames radiograficos do torax

Energy Technology Data Exchange (ETDEWEB)

Gabardo, Farly Piantini

2016-07-01

The aim of this work was to estimate the incident air kerma of lateral (LAT) and anterior-posterior (AP) together with posterior-anterior (PA) projection chest X-ray exams in one of the largest pediatric hospitals in Brazil. Dosimetric results are accompanied with the detailed analysis of patient characteristics and radiographer strategy. The exams of 225 (119 male and 106 female) patients were studied and 389 X-ray exams (200 AP/PA projections and 189 LAT projections) of pediatric patients were acquired. Patient thickness can be restored from age, height or weight with the uncertainty of ∼20-30%. Very slight correlation between the patient dose and thickness was observed with the difference in dose for patients of the same thickness reaching 4 times. By standardization of radiological protocols, it should be possible to keep dose within the intervals 50-100 μGy for LAT projection and 40-80 μGy for AP/PA projection. The dose values are lower than those recommended by major European guidelines to good practice. (author)

VCP VMware Certified Professional on vSphere 4 Study Guide, Exam VCP-410

CERN Document Server

Perry, Brian; Fields, Jeantet

2010-01-01

VMware vSphere 4 virtualization certification-here's how to prepare for the exam!. VMware's vSphere 4 is the latest offering from this leading virtualization software provider. With today's emphasis on going green and cutting costs, virtualization of IT infrastructures is a hot topic. What better way to show the marketplace your virtualization expertise than with a VMware Certified Professional on vSphere 4 certification? This in-depth study guide covers all exam objectives, thoroughly preparing you with challenging review questions, real-world scenarios, hands-on exercises, and more.: VMware'

Regularization by External Variables

DEFF Research Database (Denmark)

Bossolini, Elena; Edwards, R.; Glendinning, P. A.

2016-01-01

Regularization was a big topic at the 2016 CRM Intensive Research Program on Advances in Nonsmooth Dynamics. There are many open questions concerning well known kinds of regularization (e.g., by smoothing or hysteresis). Here, we propose a framework for an alternative and important kind of regula......Regularization was a big topic at the 2016 CRM Intensive Research Program on Advances in Nonsmooth Dynamics. There are many open questions concerning well known kinds of regularization (e.g., by smoothing or hysteresis). Here, we propose a framework for an alternative and important kind...

10 CFR 431.204 - Uniform test method for the measurement of energy consumption of illuminated exit signs.

Science.gov (United States)

2010-01-01

... 10 Energy 3 2010-01-01 2010-01-01 false Uniform test method for the measurement of energy consumption of illuminated exit signs. 431.204 Section 431.204 Energy DEPARTMENT OF ENERGY ENERGY CONSERVATION... Procedures § 431.204 Uniform test method for the measurement of energy consumption of illuminated exit signs...

76 FR 46897 - Open Meeting of the Taxpayer Advocacy Panel Small Business/Self Employed Correspondence Exam Toll...

Science.gov (United States)

2011-08-03

... Small Business/Self Employed Correspondence Exam Toll Free Project Committee AGENCY: Internal Revenue... Panel Small Business/ Self Employed Correspondence Exam Toll Free Project Committee will be conducted....C. App. (1988) that an open meeting of the Taxpayer Advocacy Panel Small Business/Self Employed...

76 FR 6190 - Open Meeting of the Taxpayer Advocacy Panel Small Business/Self Employed Correspondence Exam Toll...

Science.gov (United States)

2011-02-03

... Small Business/Self Employed Correspondence Exam Toll Free Project Committee AGENCY: Internal Revenue... Panel Small Business/ Self Employed Correspondence Exam Toll Free Project Committee will be conducted....C. App. (1988) that an open meeting of the Taxpayer Advocacy Panel Small Business/Self Employed...

76 FR 37893 - Open Meeting of the Taxpayer Advocacy Panel Small Business/Self Employed Correspondence Exam Toll...

Science.gov (United States)

2011-06-28

... Small Business/Self Employed Correspondence Exam Toll Free Project Committee AGENCY: Internal Revenue... Panel Small Business/ Self Employed Correspondence Exam Toll Free Project Committee will be conducted....C. App. (1988) that an open meeting of the Taxpayer Advocacy Panel Small Business/Self Employed...

76 FR 10942 - Open Meeting of the Taxpayer Advocacy Panel Small Business/Self Employed Correspondence Exam Toll...

Science.gov (United States)

2011-02-28

... Small Business/Self Employed Correspondence Exam Toll Free Project Committee AGENCY: Internal Revenue... Panel Small Business/ Self Employed Correspondence Exam Toll Free Project Committee will be conducted....C. App. (1988) that an open meeting of the Taxpayer Advocacy Panel Small Business/Self Employed...

Ramp Metering Influence on Freeway Operational Safety near On-ramp Exits

Directory of Open Access Journals (Sweden)

Chiu Liu, PhD, PE, PTOE

2013-06-01

Full Text Available Ramp metering has been widely installed in urban areas where congestion on a freeway or an expressway may occur recurrently during weekday peak periods to enhance mainline throughput and reduce system-wide delay. These operational benefits may also help reduce vehicular emissions and improve air quality in urban areas. However, the impact on traffic safety due to ramp metering hasn't been explored in details before. Supported by physical understanding and arguments, we characterize the ramp metering influence on freeway safety by examining vehicular collisions near on-ramp exits within the ramp meter operating hours before and after the activation of the ramp metering. Collisions for a sample of 19 operating ramp meters along several freeways in northern California were collected and organized to show that ramp metering can help reduce freeway collisions at the vicinity of on-ramp exits. It was found that the average reductions on freeway collisions in the vicinity of an on-ramp exit are around 36%. Although most of the reduced collisions belong to the property damage only category, a 36% reduction shows the significant safety benefit of ramp metering. The traffic congestion induced by each collision, especially during peak hours when ramp metering is in operation, could last for an hour or two. Consequently, ramp metering must be contributing to the reduction of non-recurrent congestion in addition to mitigating recurrent congestion, which is better documented. This study strongly supports the implementation of ramp metering in California.

Regular Single Valued Neutrosophic Hypergraphs

Directory of Open Access Journals (Sweden)

Muhammad Aslam Malik

2016-12-01

Full Text Available In this paper, we define the regular and totally regular single valued neutrosophic hypergraphs, and discuss the order and size along with properties of regular and totally regular single valued neutrosophic hypergraphs. We also extend work on completeness of single valued neutrosophic hypergraphs.

Mini‑Mental State Exam versus Montreal Cognitive Assessment in ...

African Journals Online (AJOL)

Background: Mini‑mental state exam (MMSE) was used several times but no study has examined cognition on the Montreal Cognitive Assessment (MoCA) in diabetes and diabetic retinopathy (DR). In this study, we compared MMSE with MoCA in patients with DR and searched for an association between the severity of DR ...

TomoTherapy MLC verification using exit detector data

Energy Technology Data Exchange (ETDEWEB)

Chen Quan; Westerly, David; Fang Zhenyu; Sheng, Ke; Chen Yu [TomoTherapy Inc., 1240 Deming Way, Madison, Wisconsin 53717 (United States); Department of Radiation Oncology, University of Colorado School of Medicine, Aurora, Colorado 80045 (United States); Xinghua Cancer Hospital, Xinghua, Jiangsu 225700 (China); Department of Radiation Oncology, University of California-Los Angeles, Los Angeles, California 90095 (United States); TomoTherapy Inc., 1240 Deming Way, Madison, Wisconsin 53717 (United States)

2012-01-15

Purpose: Treatment delivery verification (DV) is important in the field of intensity modulated radiation therapy (IMRT). While IMRT and image guided radiation therapy (IGRT), allow us to create more conformal plans and enables the use of tighter margins, an erroneously executed plan can have detrimental effects on the treatment outcome. The purpose of this study is to develop a DV technique to verify TomoTherapy's multileaf collimator (MLC) using the onboard mega-voltage CT detectors. Methods: The proposed DV method uses temporal changes in the MVCT detector signal to predict actual leaf open times delivered on the treatment machine. Penumbra and scattered radiation effects may produce confounding results when determining leaf open times from the raw detector data. To reduce the impact of the effects, an iterative, Richardson-Lucy (R-L) deconvolution algorithm is applied. Optical sensors installed on each MLC leaf are used to verify the accuracy of the DV technique. The robustness of the DV technique is examined by introducing different attenuation materials in the beam. Additionally, the DV technique has been used to investigate several clinical plans which failed to pass delivery quality assurance (DQA) and was successful in identifying MLC timing discrepancies as the root cause. Results: The leaf open time extracted from the exit detector showed good agreement with the optical sensors under a variety of conditions. Detector-measured leaf open times agreed with optical sensor data to within 0.2 ms, and 99% of the results agreed within 8.5 ms. These results changed little when attenuation was added in the beam. For the clinical plans failing DQA, the dose calculated from reconstructed leaf open times played an instrumental role in discovering the root-cause of the problem. Throughout the retrospective study, it is found that the reconstructed dose always agrees with measured doses to within 1%. Conclusions: The exit detectors in the TomoTherapy treatment

TomoTherapy MLC verification using exit detector data

International Nuclear Information System (INIS)

Chen Quan; Westerly, David; Fang Zhenyu; Sheng, Ke; Chen Yu

2012-01-01

Purpose: Treatment delivery verification (DV) is important in the field of intensity modulated radiation therapy (IMRT). While IMRT and image guided radiation therapy (IGRT), allow us to create more conformal plans and enables the use of tighter margins, an erroneously executed plan can have detrimental effects on the treatment outcome. The purpose of this study is to develop a DV technique to verify TomoTherapy's multileaf collimator (MLC) using the onboard mega-voltage CT detectors. Methods: The proposed DV method uses temporal changes in the MVCT detector signal to predict actual leaf open times delivered on the treatment machine. Penumbra and scattered radiation effects may produce confounding results when determining leaf open times from the raw detector data. To reduce the impact of the effects, an iterative, Richardson-Lucy (R-L) deconvolution algorithm is applied. Optical sensors installed on each MLC leaf are used to verify the accuracy of the DV technique. The robustness of the DV technique is examined by introducing different attenuation materials in the beam. Additionally, the DV technique has been used to investigate several clinical plans which failed to pass delivery quality assurance (DQA) and was successful in identifying MLC timing discrepancies as the root cause. Results: The leaf open time extracted from the exit detector showed good agreement with the optical sensors under a variety of conditions. Detector-measured leaf open times agreed with optical sensor data to within 0.2 ms, and 99% of the results agreed within 8.5 ms. These results changed little when attenuation was added in the beam. For the clinical plans failing DQA, the dose calculated from reconstructed leaf open times played an instrumental role in discovering the root-cause of the problem. Throughout the retrospective study, it is found that the reconstructed dose always agrees with measured doses to within 1%. Conclusions: The exit detectors in the TomoTherapy treatment systems

Assessment of the relationship between stress and temporomandibular joint disorder in female students before university entrance exam (Konkour exam).

Science.gov (United States)

Mottaghi, Ahmad; Razavi, S Mohammad; Pozveh, Elham Zamani; Jahangirmoghaddam, Milad

2011-12-01

Temporomandibular joint is one of the most complicated joints of the body and plays an important role in the head and neck system. One of the factors affecting the temporomandibular joint and lead to temporomandibular disorder is anxiety with all the events causing it. The aim of this study was to determine a relationship between anxiety and temporomandibular disorders. In this prospective study, subjects were randomly selected. One hundred and thirty pre-university students in Isfahan were evaluated with Ketel's test of anxiety, exam stress test and temporomandibular disorder questionnaires. The evaluation was done in two stages 10 months and 1 month prior to the university entrance exam (Konkour), clinical assessments consisted of masticatory muscles and sternocleidomastoid muscle palpation, temporomandibular joint palpation for pain and noise and its movement, and mouth opening limitations. The Wilcoxon rank test and paired t-test were used to analyze the data and the P value under 0.05 was considered significant. The level of anxiety and occurrence of temporomandibular disorders were increased between two stages and had the highest level in the second stage. There was a significant increase between two stages (Ptemporomandibular disorders and anxiety between the two stages can suggest a possible relationship between anxiety and temporomandibular disorders. Therefore, the effect of anxiety in triggering temporomandibular disorder symptoms is probable.

A study on the impulse wave discharged from the exit of a right-angle pipe bend

International Nuclear Information System (INIS)

Lee, D. H.; Hur, S. C.; Kweon, Y. H.; Kim, H. D.

2001-01-01

The current study addresses experimental and computational work of impulse wave discharged from the exit of two kinds of right-angle pipe bends, which are attached to the open end of a simple shock tube. The weak normal shock wave with its magnitude of Mach number from 1.02 to 1.20 is employed to obtain the impulse wave propagating outside the exit of the pipe bends. A Schlieren optical system visualizes the impulse wave discharged from the exit of the pipe bends at an instant. The experimental data of the magnitude of the impulse wave and its propagating directivity are analyzed to characterize the impulse waves discharged from the exit of the pipe bends and compared with those discharged from a straight pipe. Computational results well predict the experimented dynamic behaviors of the impulse wave. The results obtained show that a right-angle miter bend considerably reduces the magnitude of the impulse wave and its directivity toward to the pipe axis, compared with the straight pipe and right-angle smooth bend. It is believed that the right-angle miter bend pipe can play a role of a passive control against the impulse wave

An Eclectic Approach to Loyalty-Promoting Instruments in Corporate Law: Revisiting Hirschman's Model of Exit, Voice, and Loyalty

NARCIS (Netherlands)

A.A. Bootsma (Bart)

2013-01-01

markdownabstract__Abstract__ This essay analyses the shareholder role in corporate governance in terms of Albert Hirschman's Exit, Voice, and Loyalty. The term 'exit' is embedded in a law & economics framework, while 'voice' relates to a corporate constitutional framework. The essay takes an

Medication competency of nurses according to theoretical and drug calculation online exams: A descriptive correlational study.

Science.gov (United States)

Sneck, Sami; Saarnio, Reetta; Isola, Arja; Boigu, Risto

2016-01-01

Medication administration is an important task of registered nurses. According to previous studies, nurses lack theoretical knowledge and drug calculation skills and knowledge-based mistakes do occur in clinical practice. Finnish health care organizations started to develop a systematic verification processes for medication competence at the end of the last decade. No studies have yet been made of nurses' theoretical knowledge and drug calculation skills according to these online exams. The aim of this study was to describe the medication competence of Finnish nurses according to theoretical and drug calculation exams. A descriptive correlation design was adopted. Participants and settings All nurses who participated in the online exam in three Finnish hospitals between 1.1.2009 and 31.05.2014 were selected to the study (n=2479). Quantitative methods like Pearson's chi-squared tests, analysis of variance (ANOVA) with post hoc Tukey tests and Pearson's correlation coefficient were used to test the existence of relationships between dependent and independent variables. The majority of nurses mastered the theoretical knowledge needed in medication administration, but 5% of the nurses struggled with passing the drug calculation exam. Theoretical knowledge and drug calculation skills were better in acute care units than in the other units and younger nurses achieved better results in both exams than their older colleagues. The differences found in this study were statistically significant, but not high. Nevertheless, even the tiniest deficiency in theoretical knowledge and drug calculation skills should be focused on. It is important to identify the nurses who struggle in the exams and to plan targeted educational interventions for supporting them. The next step is to study if verification of medication competence has an effect on patient safety. Copyright © 2015 Elsevier Ltd. All rights reserved.

Acute vocal fold hemorrhage caught on video during office exam.

Science.gov (United States)

Carroll, Thomas L; Smith, Libby J

2009-03-01

This article presents a unique video of a laryngeal exam during which a vocal fold hemorrhage occurs. This patient had likely been suffering from intermittent vocal fold hemorrhages for the last decade due to a persistent vascular lesion and an underlying chronic cough.

USER MANUAL FOR EXPRESS, THE EXAMS-PRZM EXPOSURE SIMULATION SHELL

Science.gov (United States)

The Environmental Fate and Effects Division (EFED) of EPA's Office of Pesticide Programs(OPP) uses a suite of ORD simulation models for the exposure analysis portion of regulatory risk assessments. These models (PRZM, EXAMS, AgDisp) are complex, process-based simulation codes tha...

Association between scores in high school, aptitude and achievement exams and early performance in health science college

Directory of Open Access Journals (Sweden)

Al-Alwan Ibrahim

2009-01-01

Full Text Available This retrospective study was carried out to assess the correlation between admi-ssion criteria to health science colleges, namely, final high school grade and Saudi National Apti-tude and Achievement exams, and early academic performance in these colleges. The study inclu-ded 91 male students studying in the two-year pre-professional program at the King Saud bin Abdulaziz University for Health Sciences (KSAU-HS, Riyadh, Saudi Arabia. Records of these students were used to extract relevant information and their academic performance (based on the grade point average achieved at the end of the first semester of the pre-professional program, which were analytically studied. Pearson correlation coefficient was used to assess the associa-tions between the different scores. SPSS statistical program (version 12.0 was used for data ana-lyses. We found a strong correlation between the academic performance and the Achievement Exam, Aptitude Exam and high school final grade, with Pearson Correlation Coefficients of 0.96, 0.93, 0.87, respectively. The Saudi National Achievement Exam showed the most significant correla-tion. Our results indicate that academic performance showed good correlation with the admission criteria used, namely final high school grade, Saudi National Aptitude and Achievement Exams.

How Much Is that Exam Grade Really Worth? An Estimation of Student Risk Aversion to Their Unknown Final College Course Grades

Science.gov (United States)

Nalley, Lanier; McKenzie, Andrew

2011-01-01

This study created an experimental design with which students can empirically assess their risk behavior with respect to exam grades within an expected utility framework. Specifically, the authors analyzed students' risk preferences associated with taking exams and earning a "risky" unknown grade versus not taking exams and instead…

Privacy-Preserving Verifiability: A Case for an Electronic Exam Protocol

DEFF Research Database (Denmark)

Giustolisi, Rosario; Iovino, Vincenzo; Lenzini, Gabriele

2017-01-01

We introduce the notion of privacy-preserving verifiability for security protocols. It holds when a protocol admits a verifiability test that does not reveal, to the verifier that runs it, more pieces of information about the protocol’s execution than those required to run the test. Our definition...... of privacy-preserving verifiability is general and applies to cryptographic protocols as well as to human security protocols. In this paper we exemplify it in the domain of e-exams. We prove that the notion is meaningful by studying an existing exam protocol that is verifiable but whose verifiability tests...... are not privacy-preserving. We prove that the notion is applicable: we review the protocol using functional encryption so that it admits a verifiability test that preserves privacy according to our definition. We analyse, in ProVerif, that the verifiability holds despite malicious parties and that the new...

Students' attitude toward use of over the counter medicines during exams in Saudi Arabia.

Science.gov (United States)

Almalak, Haya; Albluwi, Ala'a Ibrahim; Alkhelb, Dalal Ahmed; Alsaleh, Hajar Mohmmed; Khan, Tahir Mehmood; Hassali, Mohamed Azmi Ahmad; Aljadhey, Hisham

2014-04-01

To explore the use of over the counter (OTC) medicines among students during exams in Riyadh City, Kingdom of Saudi Arabia. A cross-sectional study was designed; using a self-administered twenty-two item online questionnaire for the students' convenience and easy response disclosure. Data were analyzed using Statistical Package for Social Science (SPSS) version 13®. A total of N = 1596 students participated in this survey, of whom 829 (51.9%) were university students and 767 (48.1%) were high school students. Overall, 80.0% of the respondents disclosed the use of OTC non-steroidal anti-inflammatory drugs for headache and pain relief. In addition, other substances used during the exams were Energy Drinks (5.0%), Flu Medication (5.0%), Vitamins (5.0%) and Antibiotics (5.0%). Female students were found to be more knowledgeable about safety issues concerning the use of OTC medicines (5.11 ± 1.27, p = media were the main factors disclosed by the respondents that may result in an increase in the use of OTC products. The use of OTC medicines was generally higher among female students (p = 0.001). The use of OTC medication during exams was more among high school and university students. Gender, age and educational institution were found significantly affecting the use of OTC medicines during exams.

Dose estimation in CT exams of the abdomen based on values of DLP; Estimativa da dose em exames de tomografia de abdome com base nos valores de DLP

Energy Technology Data Exchange (ETDEWEB)

Kikuti, C.F.; Medeiros, R.B.; Salvadori, P.S.; Costa, D.M.C; D' lppolito, G., E-mail: kikuticf@gmail.com, E-mail: rbitelli2011@gmail.com [Universidade Federal de Sao Paulo (UNIFESP), SP (Brazil). Coordenadoria de Fisica e Higiene das Radiacoes. Departamento de Diagnostico por Imagem

2013-10-01

One of the challenges of multidetector computerized tomography is to minimize the risk of ionizing radiation using optimized protocols since higher doses are necessary to obtain high image quality. It was also noted that, due to the geometry in image acquisition using MDCT becomes necessary to estimate dose values consistent with the hypothesis clinically and with the specificities of the tomographic equipment. The aim of this study was to estimate the doses in abdomen exams from the data recorded on the MDCT console and dimensions obtained from DICOM images of patients undergoing different clinical protocols. Were collected, from the image DICOM of 101 exams, values of the dose length product (DLP) provided by Philips Health Care - Brilliance 64 equipment console, in order to relate them with the dose values obtained by means of thermoluminescent dosimeters ( TLD ) of CasSo{sub 4}:Mn placed on the surface of a cylindrical simulator abdomen acrylic manufactured under the technical - operational conditions for a typical abdomen exam. From the data obtained, it was possible to find a factor of 1.16 ( 5 % ) indicating that the DLP values Brilliance 64 console underestimate the doses and this should be used with correction factor to estimate the total dose of the patient. (author)

Nasolaringoscopia ou laringotraqueoscopia: qual o melhor exame para avaliação da via aérea infantil? Nasolaryngoscopy or laryngotracheoscopy: which is the best exam for assessing the airways of children?

Directory of Open Access Journals (Sweden)