Known TCP Implementation Problems

NASA Technical Reports Server (NTRS)

Paxson, Vern (Editor); Allman, Mark; Dawson, Scott; Fenner, William; Griner, Jim; Heavens, Ian; Lahey, K.; Semke, J.; Volz, B.

1999-01-01

This memo catalogs a number of known TCP implementation problems. The goal in doing so is to improve conditions in the existing Internet by enhancing the quality of current TCP/IP implementations. It is hoped that both performance and correctness issues can be resolved by making implementors aware of the problems and their solutions. In the long term, it is hoped that this will provide a reduction in unnecessary traffic on the network, the rate of connection failures due to protocol errors, and load on network servers due to time spent processing both unsuccessful connections and retransmitted data. This will help to ensure the stability of the global Internet. Each problem is defined as follows: Name of Problem The name associated with the problem. In this memo, the name is given as a subsection heading. Classification one or more problem categories for which the problem is classified: "congestion control", "performance", "reliability", "resource management". Description A definition of the problem, succinct but including necessary background material. Significance A brief summary of the sorts of environments for which the problem is significant.

Limits of detection and decision. Part 4

NASA Astrophysics Data System (ADS)

Voigtman, E.

2008-02-01

Probability density functions (PDFs) have been derived for a number of commonly used limit of detection definitions, including several variants of the Relative Standard Deviation of the Background-Background Equivalent Concentration (RSDB-BEC) method, for a simple linear chemical measurement system (CMS) having homoscedastic, Gaussian measurement noise and using ordinary least squares (OLS) processing. All of these detection limit definitions serve as both decision and detection limits, thereby implicitly resulting in 50% rates of Type 2 errors. It has been demonstrated that these are closely related to Currie decision limits, if the coverage factor, k, is properly defined, and that all of the PDFs are scaled reciprocals of noncentral t variates. All of the detection limits have well-defined upper and lower limits, thereby resulting in finite moments and confidence limits, and the problem of estimating the noncentrality parameter has been addressed. As in Parts 1-3, extensive Monte Carlo simulations were performed and all the simulation results were found to be in excellent agreement with the derived theoretical expressions. Specific recommendations for harmonization of detection limit methodology have also been made.

Developing a Framework for Analyzing Definitions: A Study of "The Feynman Lectures"

ERIC Educational Resources Information Center

Wong, Chee Leong; Chu, Hye-Eun; Yap, Kueh Chin

2014-01-01

One important purpose of a definition is to explain the meaning of a word. Any problems associated with a definition may impede students' learning. However, research studies on the definitional problems from the perspective of physics education are limited. Physics educators may not be aware of the nature and extent of definitional problems.…

SFTYCHEF: A Consultative, Diagnostic Expert System for Trench Excavation Safety Analysis on Light Commercial Construction Projects.

DTIC Science & Technology

1987-03-30

Safe Trench Excavation ...... 2 Applicability to Solution via Expert System. 3 Background: Expert Systems ..................... 4 Definition of an...trench, drownings in the trench, and other mishaps which are the result of a lack of S C- proper consideration for safe construction practices. Although...the problem is not a new one, there is as yet no *" obvious method that will guarantee a safe trench. In addition, the expertise needed to provide case

An Examination of the Use of Lists of Recent Publications Found in Selected Journals in British and European History for Collection Development and Current Awareness by Librarians and Historians: A Master's Paper for the M.S. in L.S. Degree, July, 1985.

ERIC Educational Resources Information Center

Barringer, Sallie H.

This master's paper examines the use, by historians and librarians, of lists of recent publications, bibliographies, and reviews appearing in selected British and European history journals. Part 1 contains: (1) an introduction; (2) background information; (3) a literature review; (4) the problem statement; (5) a definition of terms; and (6) the…

MIDSHIPS: Multicentre Intervention Designed for Self-Harm using Interpersonal Problem-Solving: protocol for a randomised controlled feasibility study

PubMed Central

2014-01-01

Background Around 150,000 people each year attend hospitals in England due to self-harm, many of them more than once. Over 5,000 people die by suicide each year in the UK, a quarter of them having attended hospital in the previous year because of self-harm. Self-harm is a major identifiable risk factor for suicide. People receive variable care at hospital; many are not assessed for their psychological needs and little psychological therapy is offered. Despite its frequent occurrence, we have no clear research evidence about how to reduce the repetition of self-harm. Some people who have self-harmed show less active ways of solving problems, and brief problem-solving therapies are considered the most promising psychological treatments. Methods/Design This is a pragmatic, individually randomised, controlled, feasibility study comparing interpersonal problem-solving therapy plus treatment-as-usual with treatment-as-usual alone, for adults attending a general hospital following self-harm. A total of 60 participants will be randomised equally between the treatment arms, which will be balanced with respect to the type of most recent self-harm event, number of previous self-harm events, gender and age. Feasibility objectives are as follows: a) To establish and field test procedures for implementing the problem-solving intervention; b) To determine the feasibility and best method of participant recruitment and follow up; c) To assess therapeutic delivery; d) To assess the feasibility of obtaining the definitive trial’s primary and secondary outcomes; e) To assess the perceived burden and acceptability of obtaining the trial’s self-reported outcome data; f) To inform the sample size calculation for the definitive trial. Discussion The results of this feasibility study will be used to determine the appropriateness of proceeding to a definitive trial and will allow us to design an achievable trial of interpersonal problem-solving therapy for adults who self-harm. Trial registration Current Controlled Trials (ISRCTN54036115) PMID:24886683

Conceptual measurement framework for help-seeking for mental health problems

PubMed Central

Rickwood, Debra; Thomas, Kerry

2012-01-01

Background Despite a high level of research, policy, and practice interest in help-seeking for mental health problems and mental disorders, there is currently no agreed and commonly used definition or conceptual measurement framework for help-seeking. Methods A systematic review of research activity in the field was undertaken to investigate how help-seeking has been conceptualized and measured. Common elements were used to develop a proposed conceptual measurement framework. Results The database search revealed a very high level of research activity and confirmed that there is no commonly applied definition of help-seeking and no psychometrically sound measures that are routinely used. The most common element in the help-seeking research was a focus on formal help-seeking sources, rather than informal sources, although studies did not assess a consistent set of professional sources; rather, each study addressed an idiosyncratic range of sources of professional health and community care. Similarly, the studies considered help-seeking for a range of mental health problems and no consistent terminology was applied. The most common mental health problem investigated was depression, followed by use of generic terms, such as mental health problem, psychological distress, or emotional problem. Major gaps in the consistent measurement of help-seeking were identified. Conclusion It is evident that an agreed definition that supports the comparable measurement of help-seeking is lacking. Therefore, a conceptual measurement framework is proposed to fill this gap. The framework maintains that the essential elements for measurement are: the part of the help-seeking process to be investigated and respective time frame, the source and type of assistance, and the type of mental health concern. It is argued that adopting this framework will facilitate progress in the field by providing much needed conceptual consistency. Results will then be able to be compared across studies and population groups, and this will significantly benefit understanding of policy and practice initiatives aimed at improving access to and engagement with services for people with mental health concerns. PMID:23248576

Big 6 Tips: Teaching Information Problem Solving. #1 Task Definition: What Needs To Be Done.

ERIC Educational Resources Information Center

Eisenberg, Michael

1997-01-01

Explains task definition which is the first stage in the Big 6, an approach to information and technology skills instruction. Highlights include defining the problem; identifying the information requirements of the problem; transferability from curriculum-based problems to everyday tasks; and task definition logs kept by students. (LRW)

From problem solving to problem definition: scrutinizing the complex nature of clinical practice.

PubMed

Cristancho, Sayra; Lingard, Lorelei; Regehr, Glenn

2017-02-01

In medical education, we have tended to present problems as being singular, stable, and solvable. Problem solving has, therefore, drawn much of medical education researchers' attention. This focus has been important but it is limited in terms of preparing clinicians to deal with the complexity of the 21st century healthcare system in which they will provide team-based care for patients with complex medical illness. In this paper, we use the Soft Systems Engineering principles to introduce the idea that in complex, team-based situations, problems usually involve divergent views and evolve with multiple solution iterations. As such we need to shift the conversation from (1) problem solving to problem definition, and (2) from a problem definition derived exclusively at the level of the individual to a definition derived at the level of the situation in which the problem is manifested. Embracing such a focus on problem definition will enable us to advocate for novel educational practices that will equip trainees to effectively manage the problems they will encounter in complex, team-based healthcare.

Doha agreement meeting on terminology and definitions in groin pain in athletes

PubMed Central

Weir, Adam; Brukner, Peter; Delahunt, Eamonn; Ekstrand, Jan; Griffin, Damian; Khan, Karim M; Lovell, Greg; Meyers, William C; Muschaweck, Ulrike; Orchard, John; Paajanen, Hannu; Philippon, Marc; Reboul, Gilles; Robinson, Philip; Schache, Anthony G; Schilders, Ernest; Serner, Andreas; Silvers, Holly; Thorborg, Kristian; Tyler, Timothy; Verrall, Geoffrey; de Vos, Robert-Jan; Vuckovic, Zarko; Hölmich, Per

2015-01-01

Background Heterogeneous taxonomy of groin injuries in athletes adds confusion to this complicated area. Aim The ‘Doha agreement meeting on terminology and definitions in groin pain in athletes’ was convened to attempt to resolve this problem. Our aim was to agree on a standard terminology, along with accompanying definitions. Methods A one-day agreement meeting was held on 4 November 2014. Twenty-four international experts from 14 different countries participated. Systematic reviews were performed to give an up-to-date synthesis of the current evidence on major topics concerning groin pain in athletes. All members participated in a Delphi questionnaire prior to the meeting. Results Unanimous agreement was reached on the following terminology. The classification system has three major subheadings of groin pain in athletes: 1. Defined clinical entities for groin pain: Adductor-related, iliopsoas-related, inguinal-related and pubic-related groin pain. 2. Hip-related groin pain. 3. Other causes of groin pain in athletes. The definitions are included in this paper. Conclusions The Doha agreement meeting on terminology and definitions in groin pain in athletes reached a consensus on a clinically based taxonomy using three major categories. These definitions and terminology are based on history and physical examination to categorise athletes, making it simple and suitable for both clinical practice and research. PMID:26031643

The Nature and Impact of Task Definition: Information Problem Categorization during Task Definition within the Information Problem-Solving Process

ERIC Educational Resources Information Center

Marino, John L., Jr.

2017-01-01

Information literacy describes expertise in information problem-solving. This expertise includes facility in several endeavors addressed by the information behavior literature, including information needs, seeking, and use. Definitions and descriptions of information literacy suggest that this expertise is broadly applicable to a variety of…

Estimating effective data density in a satellite retrieval or an objective analysis

NASA Technical Reports Server (NTRS)

Purser, R. J.; Huang, H.-L.

1993-01-01

An attempt is made to formulate consistent objective definitions of the concept of 'effective data density' applicable both in the context of satellite soundings and more generally in objective data analysis. The definitions based upon various forms of Backus-Gilbert 'spread' functions are found to be seriously misleading in satellite soundings where the model resolution function (expressing the sensitivity of retrieval or analysis to changes in the background error) features sidelobes. Instead, estimates derived by smoothing the trace components of the model resolution function are proposed. The new estimates are found to be more reliable and informative in simulated satellite retrieval problems and, for the special case of uniformly spaced perfect observations, agree exactly with their actual density. The new estimates integrate to the 'degrees of freedom for signal', a diagnostic that is invariant to changes of units or coordinates used.

The Difficulty of Selecting the NANDA-I Nursing Diagnosis (2015-2017) of "Death Anxiety" in Japan.

PubMed

Shimomai, Kimiyo; Furukawa, Hidetoshi; Kuroda, Yuko; Fukuda, Kazuaki; Masuda, Mitsumi; Koizumi, Junko

2018-01-01

The purpose of our study was to clarify any difficulties or problems that exist in Japanese healthcare sites regarding the selection of death anxiety as a nursing diagnosis. This study was a qualitative, inductive research design. The semistructured interviews were conducted on the participants who were nurses and had 3 or more years of clinical experience in Japan. Results showed four categories: "The Japanese have a culture of avoiding death," "It is extremely difficult to match diagnostic indicators and related factors with specific patient cases," "Other diagnoses exist that are effective and enable proactive intervention," and "The definition of death anxiety and the meaning of its diagnostic indicators are unintelligible." It is thought that nursing diagnoses that reflect specific cultural backgrounds require definitions appropriate to each country and appropriate revisions to diagnostic indicators. © 2016 NANDA International, Inc.

Competing definitions: a public policy analysis of the federal recreational fee demonstration program

Treesearch

Thomas A. E. More

2003-01-01

Problem definition theory specifies that however controls the definition of a problem is in a unique position to control debate over the issue, influence others, and determine the problem's place on the agenda. This paper uses a rhetorical analysis and a questionnaire survey of congressional aides to examine the federal Recreational Fee Demonstration Program....

Command and Control in a Complex World

DTIC Science & Technology

2012-05-22

definition of command and control does not adequately address changes introduced through technology trends, our understanding of the global operating...processes. The current joint definition of command and control does not adequately address changes introduced through technology trends, our...the problem is actually solved.  There are no  definitive ,  objective solutions to wicked problems.  For a complete  definition  of wicked problems, see

Defining pollen exposure times for clinical trials of allergen immunotherapy for pollen-induced rhinoconjunctivitis - an EAACI position paper.

PubMed

Pfaar, O; Bastl, K; Berger, U; Buters, J; Calderon, M A; Clot, B; Darsow, U; Demoly, P; Durham, S R; Galán, C; Gehrig, R; Gerth van Wijk, R; Jacobsen, L; Klimek, L; Sofiev, M; Thibaudon, M; Bergmann, K C

2017-05-01

Clinical efficacy of pollen allergen immunotherapy (AIT) has been broadly documented in randomized controlled trials. The underlying clinical endpoints are analysed in seasonal time periods predefined based on the background pollen concentration. However, any validated or generally accepted definition from academia or regulatory authorities for this relevant pollen exposure intensity or period of time (season) is currently not available. Therefore, this Task Force initiative of the European Academy of Allergy and Clinical Immunology (EAACI) aimed to propose definitions based on expert consensus. A Task Force of the Immunotherapy and Aerobiology and Pollution Interest Groups of the EAACI reviewed the literature on pollen exposure in the context of defining relevant time intervals for evaluation of efficacy in AIT trials. Underlying principles in measuring pollen exposure and associated methodological problems and limitations were considered to achieve a consensus. The Task Force achieved a comprehensive position in defining pollen exposure times for different pollen types. Definitions are presented for 'pollen season', 'high pollen season' (or 'peak pollen period') and 'high pollen days'. This EAACI position paper provides definitions of pollen exposures for different pollen types for use in AIT trials. Their validity as standards remains to be tested in future studies. © 2016 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.

Small-inclusion asymptotic of misfit functionals for inverse problems in acoustics

NASA Astrophysics Data System (ADS)

Guzina, Bojan B.; Bonnet, Marc

2006-10-01

The aim of this study is an extension and employment of the concept of topological derivative as it pertains to the nucleation of infinitesimal inclusions in a reference (i.e. background) acoustic medium. The developments are motivated by the need to develop a preliminary indicator functional that would aid the solution of inverse scattering problems in terms of a rational initial 'guess' about the geometry and material characteristics of a hidden (finite) obstacle; an information that is often required by iterative minimization algorithms. To this end the customary definition of topological derivative, which quantifies the sensitivity of a given cost functional with respect to the creation of an infinitesimal hole, is adapted to permit the nucleation of a dissimilar acoustic medium. On employing the Green's function for the background domain, computation of topological sensitivity for the three-dimensional Helmholtz equation is reduced to the solution of a reference, Laplace transmission problem. Explicit formulae are given for the nucleating inclusions of spherical and ellipsoidal shapes. For generality the developments are also presented in an alternative, adjoint-field setting that permits nucleation of inclusions in an infinite, semi-infinite or finite background medium. Through numerical examples, it is shown that the featured topological sensitivity could be used, in the context of inverse scattering, as an effective obstacle indicator through an assembly of sampling points where it attains pronounced negative values. On varying a material characteristic (density) of the nucleating obstacle, it is also shown that the proposed methodology can be used as a preparatory tool for both geometric and material identification.

The Problem of Defining Intelligence.

ERIC Educational Resources Information Center

Lubar, David

1981-01-01

The major philosophical issues surrounding the concept of intelligence are reviewed with respect to the problems surrounding the process of defining and developing artificial intelligence (AI) in computers. Various current definitions and problems with these definitions are presented. (MP)

Research on the Improved Image Dodging Algorithm Based on Mask Technique

NASA Astrophysics Data System (ADS)

Yao, F.; Hu, H.; Wan, Y.

2012-08-01

The remote sensing image dodging algorithm based on Mask technique is a good method for removing the uneven lightness within a single image. However, there are some problems with this algorithm, such as how to set an appropriate filter size, for which there is no good solution. In order to solve these problems, an improved algorithm is proposed. In this improved algorithm, the original image is divided into blocks, and then the image blocks with different definitions are smoothed using the low-pass filters with different cut-off frequencies to get the background image; for the image after subtraction, the regions with different lightness are processed using different linear transformation models. The improved algorithm can get a better dodging result than the original one, and can make the contrast of the whole image more consistent.

The future of infrastructure security :

DOE Office of Scientific and Technical Information (OSTI.GOV)

Garcia, Pablo; Turnley, Jessica Glicken; Parrott, Lori K.

2013-05-01

Sandia National Laboratories hosted a workshop on the future of infrastructure security on February 27-28, 2013, in Albuquerque, NM. The 17 participants came from backgrounds as diverse as federal policy, the insurance industry, infrastructure management, and technology development. The purpose of the workshop was to surface key issues, identify directions forward, and lay groundwork for cross-sectoral and cross-disciplinary collaborations. The workshop addressed issues such as the problem space (what is included in infrastructure problems?), the general types of threats to infrastructure (such as acute or chronic, system-inherent or exogenously imposed) and definitions of secure and resilient infrastructures. The workshop concludedmore » with a consideration of stakeholders and players in the infrastructure world, and identification of specific activities that could be undertaken by the Department of Homeland Security (DHS) and other players.« less

Predicting Rural Practice Using Different Definitions to Classify Medical School Applicants as Having a Rural Upbringing

ERIC Educational Resources Information Center

Owen, John A.; Conaway, Mark R.; Bailey, Beth A.; Hayden, Gregory F.

2007-01-01

Purpose: This study determines the relationship between a medical school applicant's rural background and the likelihood of rural practice using different definitions of rural background. Methods: Cohort study of 599 physicians who entered the University of Virginia School of Medicine in 1990-1995 and graduated in 1994-1999. The…

Induced abortion and psychological sequelae.

PubMed

Cameron, Sharon

2010-10-01

The decision to seek an abortion is never easy. Women have different reasons for choosing an abortion and their social, economic and religious background may influence how they cope. Furthermore, once pregnant, the alternatives of childbirth and adoption or keeping the baby may not be psychologically neutral. Research studies in this area have been hampered by methodological problems, but most of the better-quality studies have shown no increased risk of mental health problems in women having an abortion. A consistent finding has been that of pre-existing mental illness and subsequent mental health problems after either abortion or childbirth. Furthermore, studies have shown that only a minority of women experience any lasting sadness or regret. Risk factors for this include ambivalence about the decision, level of social support and whether or not the pregnancy was originally intended. More robust, definitive research studies are required on mental health after abortion and alternative outcomes such as childbirth. Copyright 2010 Elsevier Ltd. All rights reserved.

Informal Payments for Health Care in Iran: Results of a Qualitative Study

PubMed Central

PARSA, Mojtaba; ARAMESH, Kiarash; NEDJAT, Saharnaz; KANDI, Mohammad Jafar; LARIJANI, Bagher

2015-01-01

Abstract Background Informal payments to health care providers have been reported in many African, Asian and European countries. This study aimed to investigate different aspects of these payments that are also known as under-the-table payments in Iran. Methods This is an in-depth interview-based qualitative study conducted on 12 purposively chosen clinical specialists. The interviewees answered 9 questions including the ones about, definitions of informal payments, the specialties and hospitals mostly involved with the problem, how they are paid, factors involved, motivation of patients for the payments, impact of the payments on the health care system and physician-patient relationship and the ways to face up with the problem. The findings of the study were analyzed using qualitative content analysis method. Results Six topics were extracted from the interviews including definitions, commonness, varieties, motivations, outcomes and preventive measures. It was revealed that under-the-table payments are the money taken (either in private or public portions) from patients in addition to what formally is determined. This problem is mostly seen in surgical services and the most important reason for it is unrealistic tariffs. Conclusion Regarding the soaring commonness of informal payments rooted in underpayments of health expenditures in some specialties, which deeply affect the poor, the government has to boost the capitation and to invest on health sectors through supporting the health insurance companies and actualizing the health care costs in accord with the real price of the health care delivered. PMID:26060779

77 FR 16183 - Energy Conservation Program: Data Collection and Comparison With Forecasted Unit Sales of Five...

Federal Register 2010, 2011, 2012, 2013, 2014

2012-03-20

... . SUPPLEMENTARY INFORMATION: Table of Contents I. Background II. Definitions A. Rough Service Lamps B. Vibration... Department did not receive any comments challenging this assumption or the general approach. II. Definitions... the definition of a ``rough service lamp.'' The statutory definition reads as follows: ``The term...

16 CFR 1102.6 - Definitions.

Code of Federal Regulations, 2014 CFR

2014-01-01

... AVAILABLE CONSUMER PRODUCT SAFETY INFORMATION DATABASE Background and Definitions § 1102.6 Definitions. (a... Database. (2) Commission or CPSC means the Consumer Product Safety Commission. (3) Consumer product means a... private labeler. (7) Publicly Available Consumer Product Safety Information Database, also referred to as...

16 CFR 1102.6 - Definitions.

Code of Federal Regulations, 2012 CFR

2012-01-01

... AVAILABLE CONSUMER PRODUCT SAFETY INFORMATION DATABASE Background and Definitions § 1102.6 Definitions. (a... Database. (2) Commission or CPSC means the Consumer Product Safety Commission. (3) Consumer product means a... private labeler. (7) Publicly Available Consumer Product Safety Information Database, also referred to as...

[Between faith and delusion].

PubMed

Rosenleitner, Jan; Rittmannsberger, Hans

2013-01-01

Religious beliefs can lead to difficulties in psychiatric diagnosis, when it comes to distinguishing between faith and delusion. Delusion is defined as a false assessment of reality combined with subjective certainty, which is in contrast with the reality of the social environment. The problem with this definition is that reality cannot be examined with scientific methods/criteria and that the assessment of reality itself underlies historical and cultural fluctuations. The current diagnostic manuals for psychiatric disorders DSM 5 and ICD-10 require, that the content of the belief has to be inadequate even in the subculture of the patient (ICD-10) and that the cultural and socioeconomic background of the patient has to be taken into account (DSM 5). On the basis of this case-report and of selected publications on this topic we want to discuss this diagnostic problem. After that we present a diagnostic model for delusion, which is easy to handle in the daily routine of psychiatrists.

16 CFR § 1102.6 - Definitions.

Code of Federal Regulations, 2013 CFR

2013-01-01

... AVAILABLE CONSUMER PRODUCT SAFETY INFORMATION DATABASE Background and Definitions § 1102.6 Definitions. (a... Database. (2) Commission or CPSC means the Consumer Product Safety Commission. (3) Consumer product means a... private labeler. (7) Publicly Available Consumer Product Safety Information Database, also referred to as...

78 FR 15891 - Energy Conservation Program: Data Collection and Comparison With Forecasted Unit Sales of Five...

Federal Register 2010, 2011, 2012, 2013, 2014

2013-03-13

...: [email protected] . SUPPLEMENTARY INFORMATION: Table of Contents I. Background II. Definitions A... general approach. II. Definitions A. Rough Service Lamps Section 321(a)(1)(B) of EISA 2007 amended section 321(30) of EPCA by adding the definition of a ``rough service lamp.'' The statutory definition reads...

Internet gaming disorder in children and adolescents: a systematic review.

PubMed

Paulus, Frank W; Ohmann, Susanne; von Gontard, Alexander; Popow, Christian

2018-04-06

Internet gaming disorder (IGD) is a serious disorder leading to and maintaining pertinent personal and social impairment. IGD has to be considered in view of heterogeneous and incomplete concepts. We therefore reviewed the scientific literature on IGD to provide an overview focusing on definitions, symptoms, prevalence, and aetiology. We systematically reviewed the databases ERIC, PsyARTICLES, PsycINFO, PSYNDEX, and PubMed for the period January 1991 to August 2016, and additionally identified secondary references. The proposed definition in the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition provides a good starting point for diagnosing IGD but entails some disadvantages. Developing IGD requires several interacting internal factors such as deficient self, mood and reward regulation, problems of decision-making, and external factors such as deficient family background and social skills. In addition, specific game-related factors may promote IGD. Summarizing aetiological knowledge, we suggest an integrated model of IGD elucidating the interplay of internal and external factors. So far, the concept of IGD and the pathways leading to it are not entirely clear. In particular, long-term follow-up studies are missing. IGD should be understood as an endangering disorder with a complex psychosocial background. In representative samples of children and adolescents, on average, 2% are affected by Internet gaming disorder (IGD). The mean prevalences (overall, clinical samples included) reach 5.5%. Definitions are heterogeneous and the relationship with substance-related addictions is inconsistent. Many aetiological factors are related to the development and maintenance of IGD. This review presents an integrated model of IGD, delineating the interplay of these factors. This article's abstract has been translated into Spanish and Portuguese. Follow the links from the abstract to view the translations. © 2018 Mac Keith Press.

Career Education for Behaviorally Disordered Students.

ERIC Educational Resources Information Center

Fink, Albert H., Ed.; Kokaska, Charles J., Ed.

Ten papers address topics in career education for students with behavior disorders. W. Morse points out "Problems and Promises," including problems with the definition and scope of career education and the needs for individualization and support systems. C. Kokaska and L. Cook in "Concepts and Definitions" offer insight on problems in defining…

Changes in the Arctic: Background and Issues for Congress

DTIC Science & Technology

2011-04-07

resources and to address socioeconomic impacts of changing patterns in the use of natural resources. Changes in the Arctic: Background and Issues for...also increasingly being viewed by some observers as a potential emerging security issue. In varying degrees, the Arctic coastal states have...by the term. Policy discussions of the Arctic can employ varying definitions of the region, and readers should bear in mind that the definition used

On the Problems of Asking for a Definition of Quality in Education

ERIC Educational Resources Information Center

Wittek, Line; Kvernbekk, Tone

2011-01-01

In this article we discuss the problems of asking for a definition of quality in education from a philosophy of language perspective. We take the concept of quality as it appears in higher education discourse as our example. More specifically we discuss the possibility of obtaining a precise, unified definition of quality by addressing the problem…

Donor's understanding of the definition of sex as applied to predonation screening questions.

PubMed

O'Brien, S F; Ram, S S; Yi, Q-L; Goldman, M

2008-05-01

Predonation screening questions about sexual risk factors should provide an extra layer of safety from recently acquired infections that may be too early to be detected by testing. Donors are required to read a definition of sex as it applies to predonation screening questions each time they come to donate, but how well donors apply such definitions has not been evaluated. We aimed to determine how donors define sex when answering screening questions. In total, 1297 whole blood donors were asked in a private interview to select from a list of sexual activities which ones they believed were being asked about in sexual background questions. Donors' definitions were coded as under-inclusive, correct or over-inclusive in relation to the blood services' definition. Qualitative interviews were carried out with 21 donors to understand reasoning behind definitions. Most donors had an over-inclusive definition (58.7%) or the correct definition (31.9%). Of the 9.4% of donors who had an under-inclusive definition, 95% included both vaginal and anal sex, but not oral sex. About 9% in each group were first-time donors (P > 0.05) who had never read the definition. The qualitative interviews indicated that donors reason their definition based on their own concept of transmissible disease risk. Donors apply a range of definitions of sex when answering questions about their sexual background. This may be due to different concepts of risk activities, and required reading of the definition has little impact.

Practices & Problems in Competency-Based Measurement.

ERIC Educational Resources Information Center

Bunda, Mary Anne, Ed.; Sanders, James R., Ed.

Three basic areas of definition, measurement, and research, voiced as concerns by members of the National Council of Measurement in Education (NCME) to its Task Force on Measurement Problems in Competency-Based Programs, are used as an organizer for a sponsored symposia and the papers in this monograph. The problem of the definition of competency…

The European Cystic Fibrosis Society Patient Registry: valuable lessons learned on how to sustain a disease registry

PubMed Central

2014-01-01

Background Disease registries have the invaluable potential to provide an insight into the natural history of the disease under investigation, to provide useful information (e.g. through health indicators) for planning health care services and to identify suitable groups of patients for clinical trials enrolment. However, the establishment and maintenance of disease registries is a burdensome initiative from economical and organisational points of view and experience sharing on registries management is important to avoid waste of resources. The aim of this paper is to discuss the problems embedded in the institution and management of an international disease registry to warn against common mistakes that can derail the best of intentions: we share the experience of the European Cystic Fibrosis Society Patient Registry, which collects data on almost 30,000 patients from 23 countries. Methods We discuss the major problems that researchers often encounter in the creation and management of disease registries: definition of the aims the registry has to reach, definition of the criteria for patients referral to the registry, definition of the information to record, set up of a data quality process, handling of missing data, maintenance of data confidentiality, regulation of data use and dissemination of research results. Results We give examples on how many crucial aspects were solved by the European Cystic Fibrosis Society Patient Registry regarding objectives, inclusion criteria and variables definition, data management, data quality controls, missing data handling, confidentiality maintenance, data use and results dissemination. Conclusions We suggest an extensive literature research and discussions in working groups with different stake holders, including patient representatives, on the objectives, inclusion criteria and the information to record. We propose to pilot the recording of few variables and test the applicability of their definition first. The use of a shared electronic platform for data collection that automatically computes derived variables, and automatically performs basic data quality controls is a good data management practice, that also helps in reducing missing data. We found crucial for success the collaboration with existing national and international registries, cystic fibrosis organisations and patients’ associations. PMID:24908055

What Does "Apple" Mean? Learning To Define Words.

ERIC Educational Resources Information Center

Marinellie, Sally A.

2001-01-01

This article discusses the importance of learning to define a word. It provides a brief background on the contribution of the definitional skills to communication and school success, information on children's development of definitions, and teacher and family strategies for enhancing young children's definitions in relation to other skills.…

Medicolegal aspects of doping in football

PubMed Central

Graf‐Baumann, T

2006-01-01

This article describes the historical background of the medicolegal aspects of doping in sports and especially in football. The definitions of legal terms are explained and the procedure of individual case management as part of FIFA's approach to doping is presented. Finally, three medicolegal problems awaiting urgent solution are outlined: firstly, the difficulties in decision making arising from the decrease of the T/E ratio from 6 to 4; secondly, the therapeutic application of α‐reductase inhibitors for male pattern baldness in the face of the classification of finasteride as a forbidden masking agent; and lastly, the increasing use of recreational drugs and its social and legal implications in positive cases. PMID:16799105

Does post-exercise massage treatment reduce delayed onset muscle soreness? A systematic review

PubMed Central

Ernst, E.

1998-01-01

BACKGROUND: Delayed onset muscle soreness (DOMS) is a frequent problem after unaccustomed exercise. No universally accepted treatment exists. Massage therapy is often recommended for this condition but uncertainty exists about its effectiveness. AIM: To determine whether post-exercise massage alleviates the symptoms of DOMS after a bout of strenuous exercise. METHOD: Various computerised literature searches were carried out and located seven controlled trials. RESULTS: Most of the trials were burdened with serious methodological flaws, and their results are far from uniform. However, most suggest that post-exercise massage may alleviate symptoms of DOMS. CONCLUSIONS: Massage therapy may be a promising treatment for DOMS. Definitive studies are warranted. 


 PMID:9773168

Weighted Description Logics Preference Formulas for Multiattribute Negotiation

NASA Astrophysics Data System (ADS)

Ragone, Azzurra; di Noia, Tommaso; Donini, Francesco M.; di Sciascio, Eugenio; Wellman, Michael P.

We propose a framework to compute the utility of an agreement w.r.t a preference set in a negotiation process. In particular, we refer to preferences expressed as weighted formulas in a decidable fragment of First-order Logic and agreements expressed as a formula. We ground our framework in Description Logics (DL) endowed with disjunction, to be compliant with Semantic Web technologies. A logic based approach to preference representation allows, when a background knowledge base is exploited, to relax the often unrealistic assumption of additive independence among attributes. We provide suitable definitions of the problem and present algorithms to compute utility in our setting. We also validate our approach through an experimental evaluation.

NASA/MSFC multilayer diffusion models and computer program for operational prediction of toxic fuel hazards

NASA Technical Reports Server (NTRS)

Dumbauld, R. K.; Bjorklund, J. R.; Bowers, J. F.

1973-01-01

The NASA/MSFC multilayer diffusion models are discribed which are used in applying meteorological information to the estimation of toxic fuel hazards resulting from the launch of rocket vehicle and from accidental cold spills and leaks of toxic fuels. Background information, definitions of terms, description of the multilayer concept are presented along with formulas for determining the buoyant rise of hot exhaust clouds or plumes from conflagrations, and descriptions of the multilayer diffusion models. A brief description of the computer program is given, and sample problems and their solutions are included. Derivations of the cloud rise formulas, users instructions, and computer program output lists are also included.

Changes in the Arctic: Background and Issues for Congress

DTIC Science & Technology

2010-10-15

resources and to address socioeconomic impacts of changing patterns in the use of natural resources. Changes in the Arctic: Background and Issues for...by some observers as a potential emerging security issue. In varying degrees, the Arctic coastal states have indicated a willingness to establish and...varying definitions of the region, and readers should bear in mind that the definition used in one discussion may differ from that used in another. This

Northwestern University Flexible Subischial Vacuum Socket for persons with transfemoral amputation-Part 1: Description of technique

PubMed Central

Fatone, Stefania; Caldwell, Ryan

2017-01-01

Background: Current transfemoral prosthetic sockets restrict function, lack comfort, and cause residual limb problems. Lower proximal trim lines are an appealing way to address this problem. Development of a more comfortable and possibly functional subischial socket may contribute to improving quality of life of persons with transfemoral amputation. Objectives: The purpose of this study was to (1) describe the design and fabrication of a new subischial socket and (2) describe efforts to teach this technique. Study design: Development project. Methods: Socket development involved defining the following: subject and liner selection, residual limb evaluation, casting, positive mold rectification, check socket fitting, definitive socket fabrication, and troubleshooting of socket fit. Three hands-on workshops to teach the socket were piloted and attended by 30 certified prosthetists and their patient models. Results: Patient models responded positively to the comfort, range of motion, and stability of the new socket while prosthetists described the technique as “straight forward, reproducible.” Conclusion: To our knowledge, this is the first attempt to create a teachable subischial socket, and while it appears promising, more definitive evaluation is needed. Clinical relevance We developed the Northwestern University Flexible Subischial Vacuum (NU-FlexSIV) Socket as a more comfortable alternative to current transfemoral sockets and demonstrated that it could be taught successfully to prosthetists. PMID:28094686

Qualities in Friendship--Within an Outside Perspective--Definitions Expressed by Adolescents with Mild Intellectual Disabilities

ERIC Educational Resources Information Center

Sigstad, Hanne Marie Høybråten

2017-01-01

Background: This study examined how adolescents with mild intellectual disabilities define qualities of friendship and discussed the extent to which these definitions adhere to established definitions of close friendship. Materials and Methods: The study was based on qualitative interviews with 11 adolescents in secondary school. The interviews…

CAPELLA: Software for stellar photometry in dense fields with an irregular background

NASA Astrophysics Data System (ADS)

Debray, B.; Llebaria, A.; Dubout-Crillon, R.; Petit, M.

1994-01-01

We describe CAPELLA, a photometric reduction package developed top automatically process images of very crowded stellar fields with an irregular background. Detection is performed by the use of a derivative filter (the laplacian of a gaussian), the measuring of position and flux of the stars uses a profile fitting technique. The Point Spread Function (PSF) is empirical. The traditional multiparmetric non-linear fit is replaced by a set of individual linear fits. The determination of the background, the detection, the definition of the PSF and the basics of the methods are successively addressed in details. The iterative procedure as well as some aspects of the sampling problem are also discussed. Precision tests, performances in uncrowded and crowded fields are given CAPELLA has been used to process crowded stellar fields obtained with different detectors such as electronographic cameras, CCD's photographic films coupled to image intensifiers. It has been applied successfully in the extreme cases of close associations of the galaxy M33, of the composite Wolf-Rayet Brey 73 in the Large Magellanic Cloud (LMC) and of the central parts of globular clusters as 47 TUC and M15.

General Definitions of Work and Heat in Thermodynamic Processes.

ERIC Educational Resources Information Center

Gislason, Eric A.; Craig, Norman C.

1987-01-01

Argues that previous definitions of work and heat are inappropriate. Presents new definitions that are formulated using experimental quantities, claiming that they apply equally well to reversible and irreversible processes. Indicates some of the problems with earlier definitions and applies the new definitions to the First Law of thermodynamics.…

Problemes et methodes de la lexicographie quebecoise (Problems and Methods of Quebec Lexicography).

ERIC Educational Resources Information Center

Cormier, Monique C., Ed.; Francoeur, Aline, Ed.

Papers on lexicographic research in Quebec (Canada) include: "Indications semantiques dans les dictionnaires bilingues" ("Semantic Indications in Bilingual Dictionaries) (Johanne Blais, Roda P. Roberts); "Definitions predictionnairiques de 'maison, batiment, et pavillon'" ("Pre-dictionary definitions of 'house,…

Problems for Clinical Diagnosis.

ERIC Educational Resources Information Center

Campbell, Susan B. Goodman

1979-01-01

The author examines implications of the P.L. 94-142 (the Education for All Handicapped Children Act) definition of learning disability, and cites two cases to illustrate two basic problems: that the definition is both overinclusive and underinclusive, and that it does not consider underlying causes. (CL)

The Influence of Injury Definition on Injury Burden in Preprofessional Ballet and Contemporary Dancers.

PubMed

Kenny, Sarah J; Palacios-Derflingher, Luz; Whittaker, Jackie L; Emery, Carolyn A

2018-03-01

Study Design Cohort study. Background Multiple operational definitions of injury exist in dance research. The influence that these different injury definitions have on epidemiological estimations of injury burden among dancers warrants investigation. Objective To describe the influence of injury definition on injury prevalence, incidence, and severity in preprofessional ballet and contemporary dancers. Methods Dancers registered in full-time preprofessional ballet (n = 85; 77 female; median age, 15 years; range, 11-19 years) and contemporary (n = 60; 58 female; median age, 19 years; range, 17-30 years) training completed weekly online questionnaires (modified Oslo Sports Trauma Research Centre questionnaire on health problems) using 3 injury definitions: (1) time loss (unable to complete 1 or more classes/rehearsals/performances for 1 or more days beyond onset), (2) medical attention, and (3) any complaint. Physical therapists completed injury report forms to capture dance-related medical attention and time-loss injuries. Percent agreement between injury registration methods was estimated. Injury prevalence (seasonal proportion of dancers injured), incidence rates (count of new injuries per 1000 dance-exposure hours), and severity (total days lost) were examined across each definition, registration method, and dance style. Results Questionnaire response rate was 99%. Agreement between registration methods ranged between 59% (time loss) and 74% (injury location). Depending on definition, registration, and dance style, injury prevalence ranged between 9.4% (95% confidence interval [CI]: 4.1%, 17.7%; time loss) and 82.4% (95% CI: 72.5%, 89.8%; any complaint), incidence rates between 0.1 (95% CI: 0.03, 0.2; time loss) and 4.9 (95% CI: 4.1, 5.8; any complaint) injuries per 1000 dance-hours, and days lost between 111 and 588 days. Conclusion Time-loss and medical-attention injury definitions underestimate the injury burden in preprofessional dancers. Accordingly, injury surveillance methodologies should consider more inclusive injury definitions. J Orthop Sports Phys Ther 2018;48(3):185-193. Epub 13 Dec 2017. doi:10.2519/jospt.2018.7542 Level of Evidence Symptom prevalence study, level 1b.

Algorithmics - Is There Hope for a Unified Theory?

NASA Astrophysics Data System (ADS)

Hromkovič, Juraj

Computer science was born with the formal definition of the notion of an algorithm. This definition provides clear limits of automatization, separating problems into algorithmically solvable problems and algorithmically unsolvable ones. The second big bang of computer science was the development of the concept of computational complexity. People recognized that problems that do not admit efficient algorithms are not solvable in practice. The search for a reasonable, clear and robust definition of the class of practically solvable algorithmic tasks started with the notion of the class {P} and of {NP}-completeness. In spite of the fact that this robust concept is still fundamental for judging the hardness of computational problems, a variety of approaches was developed for solving instances of {NP}-hard problems in many applications. Our 40-years short attempt to fix the fuzzy border between the practically solvable problems and the practically unsolvable ones partially reminds of the never-ending search for the definition of "life" in biology or for the definitions of matter and energy in physics. Can the search for the formal notion of "practical solvability" also become a never-ending story or is there hope for getting a well-accepted, robust definition of it? Hopefully, it is not surprising that we are not able to answer this question in this invited talk. But to deal with this question is of crucial importance, because only due to enormous effort scientists get a better and better feeling of what the fundamental notions of science like life and energy mean. In the flow of numerous technical results, we must not forget the fact that most of the essential revolutionary contributions to science were done by defining new concepts and notions.

23 CFR 1327.3 - Definitions.

Code of Federal Regulations, 2011 CFR

2011-04-01

... RECEIVING INFORMATION FROM THE NATIONAL DRIVER REGISTER PROBLEM DRIVER POINTER SYSTEM § 1327.3 Definitions... drivers who are, based on their records, suspected of being or known to be problem drivers. (d) Driver... personal identifying information in an inquiry compares with the personal identifying information on a...

A Heuristic Approach to the Theater Distribution Problem

DTIC Science & Technology

2014-03-27

outstanding guidance on this thesis research as well as the introduction to joint mobility modeling in OPER 674 which sparked my interest in this area of...32 xi List of Acronyms Acronym Definition AMP Analysis of Mobility Platform DARP Dial-A-Ride problem...tabu SMM Strategic Mobility Modeling TDD time definite delivery TDM Theater Distribution Model TDP Theater Distribution Problem TPFDD Time Phased Force

An automated diagnostic process (PDA) in clinical psychopharmacology. An exemplification of its use in a sulpiride versus haloperidol comparative trial.

PubMed

Castrogiovanni, P; Cassano, G B; Conti, L; Maggini, C; Bonollo, L; Sarteschi, P

1976-01-01

One of the main unsolved problems, and one which produces divergent results in clinical psychopharmacology, is that concerning the selection of patients and their diagnostic definition. An automated diagnostic procedure (PDA) was set up in order to classify each patient into one nosographic category on the basis of a cross-sectional examination of his mental state. Such diagnostic procedure appears particularly suitable for multicenter drug trials, since it gives a profile and a diagnostic definition of patients, assessed by investigators from different areas and with different cultural, and clinical backgrounds. In a multicenter trial (sulpiride versus haloperidol) PDA offered a chance to re-examine and analyze the characteristics of each patient and therefore to control the criteria followed for the sample selection in the various experimental settings. The agreement between clinician and computer diagnosis was 78.9%; this agreement rises to 85.5% if the computerlabelled schizo-affective syndromes are considered within the schizophrenic group. Moreover, and attempt has been made to relate psychopathological patterns to drug responses.

Factors influencing common diagnoses made during first-opinion small-animal consultations in the United Kingdom.

PubMed

Robinson, N J; Dean, R S; Cobb, M; Brennan, M L

2016-09-01

It is currently unclear how frequently a diagnosis is made during small-animal consultations or how much of a role making a diagnosis plays in veterinary decision-making. Understanding more about the diagnostic process will help direct future research towards areas relevant to practicing veterinary surgeons. The aim of this study was to determine the frequency with which a diagnosis was made, classify the types of diagnosis made (and the factors influencing these) and determine which specific diagnoses were made for health problems discussed during small-animal consultations. Data were gathered during real-time direct observation of small-animal consultations in eight practices in the United Kingdom. Data collected included characteristics of the consultation (e.g. consultation type), patient (e.g. breed), and each problem discussed (e.g. new or pre-existing problem). Each problem discussed was classified into one of the following diagnosis types: definitive; working; presumed; open; previous. A three-level multivariable logistic-regression model was developed, with problem (Level 1) nested within patient (Level 2) nested within consulting veterinary surgeon (Level 3). Problems without a previous diagnosis, in cats and dogs only, were included in the model, which had a binary outcome variable of definitive diagnosis versus no definitive diagnosis. Data were recorded for 1901 animals presented, and data on diagnosis were gathered for 3192 health problems. Previous diagnoses were the most common diagnosis type (n=1116/3192; 35.0%), followed by open (n=868/3192; 27.2%) then definitive (n=660/3192; 20.7%). The variables remaining in the final model were patient age, problem history, consultation type, who raised the problem, and body system affected. New problems, problems in younger animals, and problems raised by the veterinary surgeon were more likely to result in a definitive diagnosis than pre-existing problems, problems in older animals, and problems raised by the owner. The most common diagnoses made were overweight/obese and periodontal disease (both n=210; 6.6%). Definitive diagnoses are rarely made during small-animal consultations, with much of the veterinary caseload involving management of ongoing problems or making decisions around new problems prior to a diagnosis being made. This needs to be taken into account when considering future research priorities, and it may be necessary to conduct research focused on the approach to common clinical presentations, rather than purely on the common diagnoses made. Examining how making a diagnosis affects the actions taken during the consultation may shed further light on the role of diagnosis in the clinical decision-making process. Copyright © 2016 The Authors. Published by Elsevier B.V. All rights reserved.

What is biomedical informatics?

PubMed Central

Bernstam, Elmer V.; Smith, Jack W.; Johnson, Todd R.

2009-01-01

Biomedical informatics lacks a clear and theoretically grounded definition. Many proposed definitions focus on data, information, and knowledge, but do not provide an adequate definition of these terms. Leveraging insights from the philosophy of information, we define informatics as the science of information, where information is data plus meaning. Biomedical informatics is the science of information as applied to or studied in the context of biomedicine. Defining the object of study of informatics as data plus meaning clearly distinguishes the field from related fields, such as computer science, statistics and biomedicine, which have different objects of study. The emphasis on data plus meaning also suggests that biomedical informatics problems tend to be difficult when they deal with concepts that are hard to capture using formal, computational definitions. In other words, problems where meaning must be considered are more difficult than problems where manipulating data without regard for meaning is sufficient. Furthermore, the definition implies that informatics research, teaching, and service should focus on biomedical information as data plus meaning rather than only computer applications in biomedicine. PMID:19683067

Problems with the Construct and Measurement of Social Anxiety.

ERIC Educational Resources Information Center

Leary, Mark R.

There has been little agreement regarding appropriate definitions of social anxiety. Many existing definitions are conceptually problematic and these problems have had serious methodological implications. Social anxiety may be defined as anxiety resulting from the prospect or presence of interpersonal evaluation in real or imagined social…

Generalizing Atoms in Constraint Logic

NASA Technical Reports Server (NTRS)

Page, C. David, Jr.; Frisch, Alan M.

1991-01-01

This paper studies the generalization of atomic formulas, or atoms, that are augmented with constraints on or among their terms. The atoms may also be viewed as definite clauses whose antecedents express the constraints. Atoms are generalized relative to a body of background information about the constraints. This paper first examines generalization of atoms with only monadic constraints. The paper develops an algorithm for the generalization task and discusses algorithm complexity. It then extends the algorithm to apply to atoms with constraints of arbitrary arity. The paper also presents semantic properties of the generalizations computed by the algorithms, making the algorithms applicable to such problems as abduction, induction, and knowledge base verification. The paper emphasizes the application to induction and presents a pac-learning result for constrained atoms.

Infrared small target detection with kernel Fukunaga Koontz transform

NASA Astrophysics Data System (ADS)

Liu, Rui-ming; Liu, Er-qi; Yang, Jie; Zhang, Tian-hao; Wang, Fang-lin

2007-09-01

The Fukunaga-Koontz transform (FKT) has been proposed for many years. It can be used to solve two-pattern classification problems successfully. However, there are few researchers who have definitely extended FKT to kernel FKT (KFKT). In this paper, we first complete this task. Then a method based on KFKT is developed to detect infrared small targets. KFKT is a supervised learning algorithm. How to construct training sets is very important. For automatically detecting targets, the synthetic target images and real background images are used to train KFKT. Because KFKT can represent the higher order statistical properties of images, we expect better detection performance of KFKT than that of FKT. The well-devised experiments verify that KFKT outperforms FKT in detecting infrared small targets.

Biopharming, bananas and bureaucracy: the banana vaccine as a case study for products that straddle the definitional food/drug divide.

PubMed

Birdsall, Margaux

2011-01-01

This paper examines the definition of the terms "food" and "drug" as used in the Food, Drug and Cosmetic Act through the lens of biopharmed products. The paper uses the so-called "banana vaccine" as a case study to highlight the problems that occur when attempting to regulate a product that could be safely used as a food or as a drug. Specifically, the examination of this model illustrates the problems in the current definitional scheme. The paper considers how a product that straddles the definitional line between food and drug could be regulated and proposes a reformation to how the definitions are applied to products to better suit new technology in food and drugs.

Sexual Behaviors in Autism: Problems of Definition and Management.

ERIC Educational Resources Information Center

Realmuto, George M.; Ruble, Lisa A.

1999-01-01

Explores the problems of definition of sexual behaviors in individuals with autism and describes a case that highlights the difficulties of management. After failure of behavioral and educational programs, a testosterone-suppressing medication was used resulting in suppression of public masturbation behaviors and retention of the participant's…

Educational Technology: Definition of the Problem.

ERIC Educational Resources Information Center

Razavi, Hossein

1978-01-01

An analysis of the evolution of educational technology demonstrates that the expansion of the concept has been unavoidable. A definition of educational technology as an economic approach to the micro and macro planning of education is introduced, and problems and guidelines for implementation in developing countries are discussed. (Author/JEG)

Is What Is Good for General Motors Good for Architecture?

ERIC Educational Resources Information Center

Myrick, Richard; And Others

1966-01-01

Problems of behavioral evaluation and determination of initial building stimuli are discussed in terms of architectural analysis. Application of management research techniques requires problem and goal definition. Analysis of both lower and higher order needs is contingent upon these definitions. Lower order needs relate to more abstract…

Simulation of Mach Probes in Non-Uniform Magnetized Plasmas: the Influence of a Background Density Gradient

NASA Astrophysics Data System (ADS)

Haakonsen, Christian Bernt; Hutchinson, Ian H.

2013-10-01

Mach probes can be used to measure transverse flow in magnetized plasmas, but what they actually measure in strongly non-uniform plasmas has not been definitively established. A fluid treatment in previous work has suggested that the diamagnetic drifts associated with background density and temperature gradients affect transverse flow measurements, but detailed computational study is required to validate and elaborate on those results; it is really a kinetic problem, since the probe deforms and introduces voids in the ion and electron distribution functions. A new code, the Plasma-Object Simulator with Iterated Trajectories (POSIT) has been developed to self-consistently compute the steady-state six-dimensional ion and electron distribution functions in the perturbed plasma. Particle trajectories are integrated backwards in time to the domain boundary, where arbitrary background distribution functions can be specified. This allows POSIT to compute the ion and electron density at each node of its unstructured mesh, update the potential based on those densities, and then iterate until convergence. POSIT is used to study the impact of a background density gradient on transverse Mach probe measurements, and the results compared to the previous fluid theory. C.B. Haakonsen was supported in part by NSF/DOE Grant No. DE-FG02-06ER54512, and in part by an SCGF award administered by ORISE under DOE Contract No. DE-AC05-06OR23100.

16 CFR 1102.6 - Definitions.

Code of Federal Regulations, 2011 CFR

2011-01-01

... AVAILABLE CONSUMER PRODUCT SAFETY INFORMATION DATABASE (Eff. Jan. 10, 2011) Background and Definitions... Product Safety Information Database. (2) Commission or CPSC means the Consumer Product Safety Commission... Information Database, also referred to as the Database, means the database on the safety of consumer products...

Republication of "Toward an Acceptable Definition of Emotional Disturbance"

ERIC Educational Resources Information Center

Algozzine, Bob; Schmid, Rex; Conners, Bob

2017-01-01

Most definitions of emotionally disturbed youngsters suggest that disturbances in the child's behavior patterns cause academic and social problems which affect the child and his peers. While the process of identification may be facilitated by operational criteria within a definition, these factors are noticeably absent from definitions of…

Defining and redefining the scope and goals of genetic counseling.

PubMed

Resta, Robert G

2006-11-15

Many definitions of genetic counseling have been proposed since Sheldon Reed first defined the term in 1947. This study reviews selected definitions of genetic counseling including the most recent definition proposed by a committee of the National Society of Genetic Counselors. The analysis focuses on the professional background of who was formulating the definition; the reasons why the definition was created; medical, historical, and social factors; and the definer's implicit or explicit goals of genetic counseling. No definition of genetic counseling is ideal, and any definition can only reflect the values, ethics, goals, and medical practices of the person or group defining the practice of genetic counseling. (c) 2006 Wiley-Liss, Inc.

A technique for solving constraint satisfaction problems using Prolog's definite clause grammars

NASA Technical Reports Server (NTRS)

Nachtsheim, Philip R.

1988-01-01

A new technique for solving constraint satisfaction problems using Prolog's definite clause grammars is presented. It exploits the fact that the grammar rule notation can be viewed as a state exchange notation. The novel feature of the technique is that it can perform informed as well as blind search. It provides the Prolog programmer with a new technique for application to a wide range of design, scheduling, and planning problems.

Cognitive Profiles of Mathematical Problem Solving Learning Disability for Different Definitions of Disability

PubMed Central

Tolar, Tammy D.; Fuchs, Lynn; Fletcher, Jack M.; Fuchs, Douglas; Hamlett, Carol L.

2014-01-01

Three cohorts of third-grade students (N = 813) were evaluated on achievement, cognitive abilities, and behavioral attention according to contrasting research traditions in defining math learning disability (LD) status: low achievement versus extremely low achievement and IQ-achievement discrepant versus strictly low-achieving LD. We use methods from these two traditions to form math problem solving LD groups. To evaluate group differences, we used MANOVA-based profile and canonical analyses to control for relations among the outcomes and regression to control for group definition variables. Results suggest that basic arithmetic is the key distinguishing characteristic that separates low-achieving problem solvers (including LD, regardless of definition) from typically achieving students. Word problem solving is the key distinguishing characteristic that separates IQ-achievement-discrepant from strictly low-achieving LD students, favoring the IQ-achievement-discrepant students. PMID:24939971

Concepts, Structures, and Goals: Redefining Ill-Definedness

ERIC Educational Resources Information Center

Lynch, Collin; Ashley, Kevin D.; Pinkwart, Niels; Aleven, Vincent

2009-01-01

In this paper we consider prior definitions of the terms "ill-defined domain" and "ill-defined problem". We then present alternate definitions that better support research at the intersection of Artificial Intelligence and Education. In our view both problems and domains are ill-defined when essential concepts, relations, or criteria are un- or…

[The use of census data to estimate levels of urbanization].

PubMed

Darwin, M; Tukiran

1991-01-01

Problems concerning changes in the definition of urbanization for demographic analysis are examined. "This article attempts to examine the problem by clarifying the definition of the concept and indicators of urban and urbanization and by making a longitudinal analysis of urbanization using the Indonesian 1920-1990 Census data." (SUMMARY IN ENG) excerpt

The Importance of Language Games in School Public Relations

ERIC Educational Resources Information Center

Fusarelli, Lance; Sanders, Marla

2005-01-01

This article examines the language games played by superintendents as they work with school boards and community activists to craft school policy. We begin by examining the role of language in problem definition and the agenda-setting process. We then examine how political culture and the media affect problem definition. We argue that school…

What do we mean by sensitivity analysis? The need for comprehensive characterization of "global" sensitivity in Earth and Environmental systems models

NASA Astrophysics Data System (ADS)

Razavi, Saman; Gupta, Hoshin V.

2015-05-01

Sensitivity analysis is an essential paradigm in Earth and Environmental Systems modeling. However, the term "sensitivity" has a clear definition, based in partial derivatives, only when specified locally around a particular point (e.g., optimal solution) in the problem space. Accordingly, no unique definition exists for "global sensitivity" across the problem space, when considering one or more model responses to different factors such as model parameters or forcings. A variety of approaches have been proposed for global sensitivity analysis, based on different philosophies and theories, and each of these formally characterizes a different "intuitive" understanding of sensitivity. These approaches focus on different properties of the model response at a fundamental level and may therefore lead to different (even conflicting) conclusions about the underlying sensitivities. Here we revisit the theoretical basis for sensitivity analysis, summarize and critically evaluate existing approaches in the literature, and demonstrate their flaws and shortcomings through conceptual examples. We also demonstrate the difficulty involved in interpreting "global" interaction effects, which may undermine the value of existing interpretive approaches. With this background, we identify several important properties of response surfaces that are associated with the understanding and interpretation of sensitivities in the context of Earth and Environmental System models. Finally, we highlight the need for a new, comprehensive framework for sensitivity analysis that effectively characterizes all of the important sensitivity-related properties of model response surfaces.

Shuttle Contamination And Experimentation: DoD Implications

NASA Astrophysics Data System (ADS)

Barnhart, B. J.; Baker, J. C.

1981-07-01

As the DOD makes the transition into the Shuttle era, experimenters are becoming more concerned about the environmental contamination of the Shuttle Orbiter. Their concern is that Shuttle contamination could prevent major planned experiments from obtaining required data, particularly sensitive infrared systems (e.g., Talon Gold, SIRE, STMP). The performance of optical experiments could be limited by the natural background, by light scattering and emissions from particulates and molecules, and by molecular absorption. Deposition and optical surface degradation may prove to be extensive problems, particularly for cryogenic optics. Other experiments such as communications and space environment tests may also be affected by deposition as well as electromagnetic interference. It has been known that the Shuttle's environment could cause contamination problems during water dumps, thruster firings, paint outgassing and other sources. Predictions have been made, but the contamination species and extent of these problems will not be known definitely until space measurements are made. This paper identifies the contamination types, sources, and their possible effect on particular types of space experiments. The paper also discusses NASA's plans for contamination measurements and the Space Test experiments which could contribute to early resolution of the contamination questions.

Shuttle Contamination And Experimentation: DoD Implications

NASA Astrophysics Data System (ADS)

Barnhart, B. J.; Baker, J. C.

1982-02-01

As the DOD makes the transition into the Shuttle era, experimenters are becoming more concerned about the environmental contamination of the Shuttle Orbiter. Their concern is that Shuttle contamination could prevent major planned experiments from obtaining required data, particularly sensitive infrared systems (e.g., Talon Gold, SIRE, STMP). The performance of optical experiments could be limited by the natural background, by light scattering and emissions from particulates and molecules, and by molecular absorption. Deposition and optical surface degradation may prove to be extensive problems, particularly for cryogenic optics. Other experiments such as communications and space environment tests may also be affected by deposition as well as electromagnetic interference. It has been known that the Shuttle's environment could cause contamination problems during water dumps, thruster firings, paint outgassing and other sources. Predictions have been made, but the contamination species and extent of these problems will not be known definitely until space measurements are made. This paper identifies the contamination types, sources, and their possible effect on particular types of space experiments. The paper also discusses NASA's plans for contamination measurements and the Space Test experiments which could contribute to early resolution of the contamination questions.

Rethinking the 'global' in global health: a dialectic approach

PubMed Central

2010-01-01

Background Current definitions of 'global health' lack specificity about the term 'global'. This debate presents and discusses existing definitions of 'global health' and a common problem inherent therein. It aims to provide a way forward towards an understanding of 'global health' while avoiding redundancy. The attention is concentrated on the dialectics of different concepts of 'global' in their application to malnutrition; HIV, tuberculosis & malaria; and maternal mortality. Further attention is payed to normative objectives attached to 'global health' definitions and to paradoxes involved in attempts to define the field. Discussion The manuscript identifies denotations of 'global' as 'worldwide', as 'transcending national boundaries' and as 'holistic'. A fourth concept of 'global' as 'supraterritorial' is presented and defined as 'links between the social determinants of health anywhere in the world'. The rhetorical power of the denotations impacts considerably on the object of 'global health', exemplified in the context of malnutrition; HIV, tuberculosis & malaria; and maternal mortality. The 'global' as 'worldwide', as 'transcending national boundaries' and as 'holistic' house contradictions which can be overcome by the fourth concept of 'global' as 'supraterritorial'. The 'global-local-relationship' inherent in the proposed concept coheres with influential anthropological and sociological views despite the use of different terminology. At the same time, it may be assembled with other views on 'global' or amend apparently conflicting ones. The author argues for detaching normative objectives from 'global health' definitions to avoid so called 'entanglement-problems'. Instead, it is argued that the proposed concept constitutes an un-euphemistical approach to describe the inherently politicised field of 'global health'. Summary While global-as-worldwide and global-as-transcending-national-boundaries are misleading and produce redundancy with public and international health, global-as-supraterritorial provides 'new' objects for research, education and practice while avoiding redundancy. Linked with 'health' as a human right, this concept preserves the rhetorical power of the term 'global health' for more innovative forms of study, research and practice. The dialectic approach reveals that the contradictions involved in the different notions of the term 'global' are only of apparent nature and not exclusive, but have to be seen as complementary to each other if expected to be useful in the final step. PMID:21029401

Fuzzy Analysis in Creative Problem Solving.

ERIC Educational Resources Information Center

Carey, Russell L.

1984-01-01

"Diagraming Analysis of a Fuzzy Technique" (DAFT) is a model rectifying two problems associated with Future Problem Solving Bowl activities, namely problem definition by teams and evaluation of team responses. (MC)

Fragmentation of Thinking Structure's Students to Solving the Problem of Application Definite Integral in Area

ERIC Educational Resources Information Center

Wibawa, Kadek Adi; Nusantara, Toto; Subanji; Parta, I. Nengah

2017-01-01

This study aims to reveal the fragmentation of thinking structure's students in solving the problems of application definite integral in area. Fragmentation is a term on the computer (storage) that is highly relevant correlated with theoretical constructions that occur in the human brain (memory). Almost every student has a different way to…

The Atomic Mass Unit, the Avogadro Constant, and the Mole: A Way to Understanding

ERIC Educational Resources Information Center

Baranski, Andrzej

2012-01-01

Numerous articles have been published that address problems encountered in teaching basic concepts of chemistry such as the atomic mass unit, Avogadro's number, and the mole. The origin of these problems is found in the concept definitions. If these definitions are adjusted for teaching purposes, understanding could be improved. In the present…

Expanding color design methods for architecture and allied disciplines

NASA Astrophysics Data System (ADS)

Linton, Harold E.

2002-06-01

The color design processes of visual artists, architects, designers, and theoreticians included in this presentation reflect the practical role of color in architecture. What the color design professional brings to the architectural design team is an expertise and rich sensibility made up of a broad awareness and a finely tuned visual perception. This includes a knowledge of design and its history, expertise with industrial color materials and their methods of application, an awareness of design context and cultural identity, a background in physiology and psychology as it relates to human welfare, and an ability to problem-solve and respond creatively to design concepts with innovative ideas. The broadening of the definition of the colorists's role in architectural design provides architects, artists and designers with significant opportunities for continued professional and educational development.

Teachers' and Pupils' Definitions of Bullying

ERIC Educational Resources Information Center

Naylor, Paul; Cowie, Helen; Cossin, Fabienne; de Bettencourt, Rita; Lemme, Francesca

2006-01-01

Background: Comparison of teachers' and pupils' definitions of bullying is important for considering the implications for reports of its incidence in schools, for the study of developmental trends in children's and adolescents' perceptions of the phenomenon and for evaluating the effectiveness of interventions designed to combat bullying. Aims: To…

An Employment-Oriented Definition of the Information Systems Field: An Educator's View

ERIC Educational Resources Information Center

Westfall, Ralph D.

2012-01-01

Defining information systems has been a longstanding problem for the field. This paper suggests that, since it may not be possible to develop a universal definition, consideration should be given to a plurality of definitions aligned toward specific purposes. As an implementation of this approach it recommends the following shorter definition for…

On the Usefulness of "Value" in the Definition of Creativity

ERIC Educational Resources Information Center

Weisberg, Robert W.

2015-01-01

Current definitions of creativity almost universally include "value" or a close cognate as one of the criteria. This article discusses two problems that arise as the result of the inclusion of value in those definitions. First, there is a conflict between the researchers' definition of the relevant phenomena and that used in the ordinary…

Frequent attendance in primary care: comparison and implications of different definitions

PubMed Central

Luciano, Juan V; Fernández, Ana; Pinto-Meza, Alejandra; Luján, Leila; Bellón, Juan A; García-Campayo, Javier; Peñarrubia, María T; Fernández, Rita; Sanavia, Marta; Blanco, María E; Haro, Josep M; Palao, Diego J; Serrano-Blanco, Antoni

2010-01-01

Background The diversity of definitions of frequent attendance in the literature hampers comparison of their precision, validity, and associated factors. Aim To examine different definitions of frequent attendance in order to identify the sociodemographic and clinical factors associated with frequent attendance in primary care, according to each definition. Design of study One-phase cross-sectional study. Setting Seventy-seven primary care centres in Catalonia, Spain. Method A total of 3815 primary care patients were interviewed between October 2005 and March 2006. Three definitions of frequent attendance were tested: (1) frequent attenders as the top 25% and the top 10% consulting patients; (2) frequent attenders as the top 25% and the top 10% consulting patients stratified by age and sex; and (3) frequent attenders as the top 25% and the top 10% consulting patients stratified by the presence of physical/mental conditions (patients with only mental disorders, with only chronic physical conditions, with comorbid conditions, and with no condition). Multilevel logistic regressions were used. Results The following factors were systematically related to frequent attender status: being on sick leave, being born outside of Spain, reporting mental health problems as the main reason for consulting, and having arthritis/rheumatism, or bronchitis. Major depression was related to frequent attendance in two of the three definitions. The factor ‘GP’ was related to frequent attendance when the top decile cut-off point was used. The models with a 10% cut-off point were more discriminative than those with a 25% cut-off point: the area under the receiver operating characteristic curve for models with a 25% cut-off and a 10% cut-off ranged between 0.71 (95% confidence interval [CI] = 0.70 to 0.73) and 0.75 (95% CI = 0.74 to 0.77) and between 0.79 (95% CI = 0.78 to 0.81) and 0.85 (95% CI = 0.83 to 0.86), respectively. Conclusion The way frequent attendance is defined is of crucial importance. It is recommended that a more discriminative definition of frequent attendance is used (the top 10%). PMID:20132693

"My child has a sleep problem": a cross-cultural comparison of parental definitions.

PubMed

Sadeh, Avi; Mindell, Jodi; Rivera, Luis

2011-05-01

Sleep problems are highly prevalent in early childhood. In many cases, parents seek professional help when they suspect their child suffers from a sleep problem. The aim of this study was to explore sleep, demographic and cultural factors associated with parental definition of child sleep problem in a large-scale, cross cultural study. Parents (or caregivers) of 29,287 infants and toddlers (aged 0-3 years) from 17 countries completed a questionnaire on their child's sleep patterns, sleep setting, and demographic variables. The results indicated that, in comparison to parents from predominantly Caucasian (PC) countries, parents from predominantly Asian (PA) countries were significantly more likely to identify a sleep problem in their children (26% vs 52% overall; 2% vs 17% "severe" sleep problem). Furthermore, whereas infant sleep variables were strong predictors of a sleep problem definition in PC countries, they were significantly less predictive in PA countries where demographic variables played a significant role. These results highlight the need to further explore the role of demographic and cultural variables in determining parental perception of a sleep problem, a perception that relates to help seeking professional treatment for infant sleep problems. Our findings also emphasize the need to educate parents about infant and toddler sleep and to provide parents information and screening tools to help them identify sleep problems in a more evidence-based approach. Copyright © 2011 Elsevier B.V. All rights reserved.

Some Problems in Educational Administration

ERIC Educational Resources Information Center

Lyons, Raymond F.

1977-01-01

Educational administration problems in developing countries are discussed. Possible solutions to problems of decision-making, decision implementation, communications, task definition, and financial control are suggested. (Author/DB)

77 FR 30932 - Approval and Promulgation of Air Quality Implementation Plans; Massachusetts; Regional Haze

Federal Register 2010, 2011, 2012, 2013, 2014

2012-05-24

... background for EPA's proposed action? A. The Regional Haze Problem B. Background Information C. Roles of... the background for EPA's proposed action? A. The Regional Haze Problem Regional haze is visibility... distances, even hundreds of kilometers. Therefore, to effectively address the problem of visibility...

Rationale for the Definition of the Particular Solution to an Initial Value Problem: A Unique Solution Is Guaranteed

ERIC Educational Resources Information Center

Perna, James

2016-01-01

The purpose of this article is to examine the reasoning behind the wording of the definition of the particular solution to an initial value problem. This article will be of practical importance for students taking a first year calculus course that includes the study of first order linear separable differential equations.

The Administrative Problems Involved in Executing Clinical Recommendations for the Treatment of Severe Reading Disorders Within an Ongoing Educational System.

ERIC Educational Resources Information Center

Schiffman, Gilbert B.

Developing a program of treatment for dyslexic readers involves four major problems: (1) definition of the reading isability, (2) administrative and educational inertia, (3) organization of the treatment program, and (4) the need for evaluatio and research. There is great disagreement over definitions of reading disabilities, yet an effective…

28 CFR 105.10 - Definitions, purpose, and scope.

Code of Federal Regulations, 2013 CFR

2013-07-01

... Section 105.10 Judicial Administration DEPARTMENT OF JUSTICE (CONTINUED) CRIMINAL HISTORY BACKGROUND... certification, or rating are not included in this definition. When the Department of Defense or the U.S. Coast Guard, or an entity providing training pursuant to a contract with the Department of Defense or the U.S...

28 CFR 105.10 - Definitions, purpose, and scope.

Code of Federal Regulations, 2011 CFR

2011-07-01

... Section 105.10 Judicial Administration DEPARTMENT OF JUSTICE (CONTINUED) CRIMINAL HISTORY BACKGROUND... certification, or rating are not included in this definition. When the Department of Defense or the U.S. Coast Guard, or an entity providing training pursuant to a contract with the Department of Defense or the U.S...

28 CFR 105.10 - Definitions, purpose, and scope.

Code of Federal Regulations, 2014 CFR

2014-07-01

... Section 105.10 Judicial Administration DEPARTMENT OF JUSTICE (CONTINUED) CRIMINAL HISTORY BACKGROUND... certification, or rating are not included in this definition. When the Department of Defense or the U.S. Coast Guard, or an entity providing training pursuant to a contract with the Department of Defense or the U.S...

28 CFR 105.10 - Definitions, purpose, and scope.

Code of Federal Regulations, 2012 CFR

2012-07-01

... Section 105.10 Judicial Administration DEPARTMENT OF JUSTICE (CONTINUED) CRIMINAL HISTORY BACKGROUND... certification, or rating are not included in this definition. When the Department of Defense or the U.S. Coast Guard, or an entity providing training pursuant to a contract with the Department of Defense or the U.S...

Engineering Geodesy - Definition and Core Competencies

NASA Astrophysics Data System (ADS)

Kuhlmann, Heiner; Schwieger, Volker; Wieser, Andreas; Niemeier, Wolfgang

2014-11-01

This article summarises discussions concerning the definition of "engineering geodesy" within the German Geodetic Commission. It is noted that engineering geodesy by means of its tasks, methods and characteristics is an application-oriented science whose research questions often arise from observed phenomena or from unsolved practical problems. In particular it is characterised by the professional handling of geometry-related problems in a cost-effective manner that includes comprehensive quality assessment at all phases of the problem solution - from planning through measurement to data processing and interpretation. The current methodical developments are primarily characterised by the increasing integration of the measurement and analysis into challenging construction, production and monitoring processes as well as by the transition to spatially continuous methods. A modern definition of engineering geodesy is proposed at the end of this article.

The Exploring Nature of Definitions and Classifications of Language Learning Strategies (LLSs) in the Current Studies of Second/Foreign Language Learning

ERIC Educational Resources Information Center

Fazeli, Seyed Hossein

2011-01-01

This study aims to explore the nature of definitions and classifications of Language Learning Strategies (LLSs) in the current studies of second/foreign language learning in order to show the current problems regarding such definitions and classifications. The present study shows that there is not a universal agreeable definition and…

Educational Choice. A Background Paper.

ERIC Educational Resources Information Center

Quality Education for Minorities Network, Washington, DC.

This paper addresses school choice, one proposal to address parental involvement concerns, focusing on historical background, definitions, rationale for advocating choice, implementation strategies, and implications for minorities and low-income families. In the past, transfer payment programs such as tuition tax credits and vouchers were…

2010 Data Standards Manual Student Background Characteristics. For Use by Schools and School Systems Test Administration Authorities and Assessment Contractors. Fifth Edition

ERIC Educational Resources Information Center

Ministerial Council for Education, Early Childhood Development and Youth Affairs (NJ1), 2009

2009-01-01

The process of collecting student background information from parents using nationally agreed definitions of student background characteristics began in 2005. The original edition of this manual, titled "Data Implementation Manual for Enrolments for the 2005 and 2006 School Years," was prepared to assist schools and systems in modifying…

State Decision-Makers Guide for Hazardous Waste Management: Defining Hazardous Wastes, Problem Recognition, Land Use, Facility Operations, Conceptual Framework, Policy Issues, Transportation.

ERIC Educational Resources Information Center

Corson, Alan; And Others

Presented are key issues to be addressed by state, regional, and local governments and agencies in creating effective hazardous waste management programs. Eight chapters broadly frame the topics which state-level decision makers should consider. These chapters include: (1) definition of hazardous waste; (2) problem definition and recognition; (3)…

A Structured Approach to Teaching Applied Problem Solving through Technology Assessment.

ERIC Educational Resources Information Center

Fischbach, Fritz A.; Sell, Nancy J.

1986-01-01

Describes an approach to problem solving based on real-world problems. Discusses problem analysis and definitions, preparation of briefing documents, solution finding techniques (brainstorming and synectics), solution evaluation and judgment, and implementation. (JM)

How Should Energy Be Defined Throughout Schooling?

NASA Astrophysics Data System (ADS)

Bächtold, Manuel

2017-02-01

The question of how to teach energy has been renewed by recent studies focusing on the learning and teaching progressions for this concept. In this context, one question has been, for the most part, overlooked: how should energy be defined throughout schooling? This paper addresses this question in three steps. We first identify and discuss two main approaches in physics concerning the definition of energy, one claiming there is no satisfactory definition and taking conservation as a fundamental property, and the other based on Rankine's definition of energy as the capacity of a system to produce changes. We then present a study concerning how energy is actually defined throughout schooling in the case of France by analyzing national programs, physics textbooks, and the answers of teachers to a questionnaire. This study brings to light a consistency problem in the way energy is defined across school years: in primary school, an adapted version of Rankine's definition is introduced and conservation is ignored; in high school, conservation is introduced and Rankine's definition is ignored. Finally, we address this consistency problem by discussing possible teaching progressions. We argue in favor of the use of Rankine's definition throughout schooling: at primary school, it is a possible substitute to students' erroneous conceptions; at secondary school, it might help students become aware of the unifying role of energy and thereby overcome the compartmentalization problem.

Defining “Binge” Drinking as Five Drinks per Occasion or Drinking to a 0.08% BAC: Which is More Sensitive to Risk?

PubMed Central

Fillmore, Mark T.; Jude, Rebecca

2011-01-01

Heavy episodic or “binge” drinking is commonly defined as drinking 4–5 drinks per occasion (5/4 definition) or drinking that results in a blood alcohol concentration (BAC) of 0.08%. The present study compared the validity of each binge definition as an indicator of at-risk, problem drinking. 251 college students were classified as non-binge drinkers or as binge drinkers based on the 5/4 definition or the 0.08% BAC definition. The two definitions of binge drinking were examined in terms of their sensitivity and specificity as indicators of alcohol-related problems as determined by scores on the Alcohol Use Disorders Identification Test (AUDIT). Over half the sample (56%) were at-risk drinkers according to the AUDIT. The 0.08% definition detected only one-half of these individuals. Gender differences were also evident. Female binge drinkers actually achieved significantly higher estimated BACs per episode than their male binge drinking counterparts. The findings suggest that drinking to a sub-threshold BAC (i.e., < 0.08%) is not sufficient to avoid alcohol-related problems, and that total quantity (i.e., total standard drinks) per occasion might contribute to risk independent of the BAC achieved during drinking episodes. The findings also highlight the importance of considering frequency of consumption in determining risky drinking versus relying solely on quantity measures. PMID:21838847

A Multilevel Approach to the Algebraic Image Reconstruction Problem

DTIC Science & Technology

1994-06-01

and later use this fact to show that the Gauss-Seidel method when applied to the problem cannot diverge and in fact must converge. Theorem 4.2: B is...First, we show that the Gauss-Seidel method cannot diverge for this problem. We introduce the following definitions: 71 Definition 5.1: The energy...Seidel cannot diverge . Recall that (5.4) is ~k+l) - _2_ (b·- ~ .. (k+l) - ~ .. (k)) x~ - , L......t q,1 x 1 L......t a,1 x 1 , qii j=l j=i+l 1 ~ i

Some problems concerned with the geodetic use of high precision altimeter data

NASA Technical Reports Server (NTRS)

Lelgemann, D.

1976-01-01

The definition of the geoid in view of different height systems is discussed. A definition is suggested which makes it possible to take into account the influence of the unknown corrections to the various height systems on the solution of Stokes' problem. A solution to Stokes' problem with an accuracy of 10 cm is derived which allows the inclusion of the results of satellite geodesy. In addition equations are developed for the determination of spherical harmonies using altimeter measurements. The influence of the ellipticity of the reference surface is considered.

16 CFR 1615.1 - Definitions.

Code of Federal Regulations, 2011 CFR

2011-01-01

... yellow background and black lettering. The color yellow must meet the specifications for Standard Safety... must not be obscured by the hole provided for attaching the hangtag to the garment. The hangtag must be.../Helvetica in black lettering against a yellow background. The packages must be prominently, conspicuously...

Definitive Surgical Treatment of Infected or Exposed Ventral Hernia Mesh

PubMed Central

Szczerba, Steven R.; Dumanian, Gregory A.

2003-01-01

Objective To discuss the difficulties in dealing with infected or exposed ventral hernia mesh, and to illustrate one solution using an autogenous abdominal wall reconstruction technique. Summary Background Data The definitive treatment for any infected prosthetic material in the body is removal and substitution. When ventral hernia mesh becomes exposed or infected, its removal requires a solution to prevent a subsequent hernia or evisceration. Methods Eleven patients with ventral hernia mesh that was exposed, nonincorporated, with chronic drainage, or associated with a spontaneous enterocutaneous fistula were referred by their initial surgeons after failed local wound care for definitive management. The patients were treated with radical en bloc excision of mesh and scarred fascia followed by immediate abdominal wall reconstruction using bilateral sliding rectus abdominis myofascial advancement flaps. Results Four of the 11 patients treated for infected mesh additionally required a bowel resection. Transverse defect size ranged from 8 to 18 cm (average 13 cm). Average procedure duration was 3 hours without bowel repair and 5 hours with bowel repair. Postoperative length of stay was 5 to 7 days without bowel repair and 7 to 9 days with bowel repair. Complications included hernia recurrence in one case and stitch abscesses in two cases. Follow-up ranges from 6 to 54 months (average 24 months). Conclusions Removal of infected mesh and autogenous flap reconstruction is a safe, reliable, and one-step surgical solution to the problem of infected abdominal wall mesh. PMID:12616130

How Can We Detect Life When We Cannot Define It in a General Way?

NASA Astrophysics Data System (ADS)

Leitner, Johannes1, 2; Firneis, M. G. 1, 2

2012-05-01

During recent months and years a large number of proposals for the definitions of life have been published. Nevertheless, an international consensus on this question has not been achieved up to now. There is also an ongoing discussion if it is possible to define life with only the terrestrial sample at hand and the fact that a general theory of life is necessary before defining life as a universal concept (Cleland and Chyba, 2002). Considering this background a "definition" of life is not only of philosophical interest, but seems to be a necessary antecedent for the detection of extraterrestrial life. A number of definitions and hypotheses for life focus on the ability to reproduce itself and leads to the problem that a single individual cannot be considered formally as life as well as that sterile species of mules can also not considered to be alive. Viruses are classically also not categorized as life. Kolb (2007) defined the need of viruses to have host cells as "assisted reproduction". Also a human being is only able to manage essential parts of its metabolism with the help of microorganisms, which are needed for example for the supply of some vitamins or for the reduction of carbohydrates as well as the synthesis of some amino acids. This kind of symbiosis between microorganisms and humans could also be interpreted as "assisted metabolism" and leads once more to the question, how can we count humanity as being alive, but viruses declared as being not alive?

An Operational Definition of Learning

ERIC Educational Resources Information Center

Harel, Guershon; Koichu, Boris

2010-01-01

An operational definition offered in this paper posits learning as a multi-dimensional and multi-phase phenomenon occurring when individuals attempt to solve what they view as a problem. To model someone's learning accordingly to the definition, it suffices to characterize a particular sequence of that person's disequilibrium-equilibrium phases in…

Assessment of the Knowledge and Beliefs regarding Probiotic Use

ERIC Educational Resources Information Center

Stanczak, Melanie; Heuberger, Roschelle

2009-01-01

Background: Although there is mounting evidence of the benefits of probiotics, many consumers are unaware of the definition of probiotics and are unable to state which foods contain these live microorganisms. Purpose: This study attempted to determine if participants were able to state the definition of probiotics, whether they utilize these…

8 CFR 240.67 - Procedure for interview before an asylum officer.

Code of Federal Regulations, 2013 CFR

2013-01-01

... definitive response from the FBI that a full criminal background check has been completed. A definitive...) Confirmation from the FBI that an applicant does not have an administrative or criminal record; (2) Confirmation from the FBI that an applicant has an administrative or a criminal record; or (3) Confirmation...

8 CFR 240.67 - Procedure for interview before an asylum officer.

Code of Federal Regulations, 2014 CFR

2014-01-01

... definitive response from the FBI that a full criminal background check has been completed. A definitive...) Confirmation from the FBI that an applicant does not have an administrative or criminal record; (2) Confirmation from the FBI that an applicant has an administrative or a criminal record; or (3) Confirmation...

Information and Knowledge: An Evolutionary Framework for Information Science

ERIC Educational Resources Information Center

Bates, Marcia J.

2005-01-01

Background: Many definitions of information, knowledge, and data have been suggested throughout the history of information science. In this article, the objective is to provide definitions that are usable for the physical, biological, and social meanings of the terms, covering the various senses important to our field. Argument: Information 1 is…

Exemplar-Based Image Inpainting Using a Modified Priority Definition.

PubMed

Deng, Liang-Jian; Huang, Ting-Zhu; Zhao, Xi-Le

2015-01-01

Exemplar-based algorithms are a popular technique for image inpainting. They mainly have two important phases: deciding the filling-in order and selecting good exemplars. Traditional exemplar-based algorithms are to search suitable patches from source regions to fill in the missing parts, but they have to face a problem: improper selection of exemplars. To improve the problem, we introduce an independent strategy through investigating the process of patches propagation in this paper. We first define a new separated priority definition to propagate geometry and then synthesize image textures, aiming to well recover image geometry and textures. In addition, an automatic algorithm is designed to estimate steps for the new separated priority definition. Comparing with some competitive approaches, the new priority definition can recover image geometry and textures well.

Exemplar-Based Image Inpainting Using a Modified Priority Definition

PubMed Central

Deng, Liang-Jian; Huang, Ting-Zhu; Zhao, Xi-Le

2015-01-01

Exemplar-based algorithms are a popular technique for image inpainting. They mainly have two important phases: deciding the filling-in order and selecting good exemplars. Traditional exemplar-based algorithms are to search suitable patches from source regions to fill in the missing parts, but they have to face a problem: improper selection of exemplars. To improve the problem, we introduce an independent strategy through investigating the process of patches propagation in this paper. We first define a new separated priority definition to propagate geometry and then synthesize image textures, aiming to well recover image geometry and textures. In addition, an automatic algorithm is designed to estimate steps for the new separated priority definition. Comparing with some competitive approaches, the new priority definition can recover image geometry and textures well. PMID:26492491

Tackling wicked problems in infection prevention and control: a guideline for co-creation with stakeholders.

PubMed

van Woezik, Anne F G; Braakman-Jansen, Louise M A; Kulyk, Olga; Siemons, Liseth; van Gemert-Pijnen, Julia E W C

2016-01-01

Infection prevention and control can be seen as a wicked public health problem as there is no consensus regarding problem definition and solution, multiple stakeholders with different needs and values are involved, and there is no clear end-point of the problem-solving process. Co-creation with stakeholders has been proposed as a suitable strategy to tackle wicked problems, yet little information and no clear step-by-step guide exist on how to do this. The objectives of this study were to develop a guideline to assist developers in tackling wicked problems using co-creation with stakeholders, and to apply this guideline to practice with an example case in the field of infection prevention and control. A mixed-method approach consisting of the integration of both quantitative and qualitative research was used. Relevant stakeholders from the veterinary, human health, and public health sectors were identified using a literature scan, expert recommendations, and snowball sampling. The stakeholder salience approach was used to select key stakeholders based on 3 attributes: power, legitimacy, and urgency. Key values of stakeholders (N = 20) were derived by qualitative semi-structured interviews and quantitatively weighted and prioritized using an online survey. Our method showed that stakeholder identification and analysis are prerequisites for understanding the complex stakeholder network that characterizes wicked problems. A total of 73 stakeholders were identified of which 36 were selected as potential key stakeholders, and only one was seen as a definite stakeholder. In addition, deriving key stakeholder values is a necessity to gain insights into different problem definitions, solutions and needs stakeholders have regarding the wicked problem. Based on the methods used, we developed a step-by-step guideline for co-creation with stakeholders when tackling wicked problems. The mixed-methods guideline presented here provides a systematic, transparent method to identify, analyze, and co-create with stakeholders, and to recognize and prioritize their values, problem definitions, and solutions in the context of wicked problems. This guideline consists of a general framework and although it was applied in an eHealth context, may be relevant outside of eHealth as well.

Microgravity: Teacher's Guide with Activities for Physical Science.

ERIC Educational Resources Information Center

Vogt, Gregory L.; Wargo, Michael J.

This teacher's guide to microgravity contains 16 student science activities with full background information to facilitate an understanding of the concepts of microgravity for teachers and students. Topics covered in the background sections include the definitions of gravity and microgravity, creating microgravity, the fluid state, combustion…

Self-management of chronic low back pain and osteoarthritis.

PubMed

May, Stephen

2010-04-01

Chronic low back pain and osteoarthritis are two musculoskeletal problems that are highly prevalent in the general population, are frequently episodic and persistent, and are associated with high costs to society, both direct and indirect. This epidemiological picture provides the background that justifies the use of self-management strategies in managing these problems. For this Review, relevant systematic reviews were included that related to effectiveness; other study designs were included that addressed other aspects of the topic. The accepted definition of self-management includes liaison between health professionals and individuals with these problems, as well as independent health-promotion activities. Independent self-management strategies, such as exercise and self-medication, are practiced by individuals in the general population. Consistent evidence shows that self-management programs for osteoarthritis are effective in addressing pain and function, but effect sizes are small and might be clinically negligible. Educational programs for patients with back pain are effective in an occupational setting and if combined with an exercise program. Exercise is an effective strategy in the management of both chronic low back pain and osteoarthritis, although it is unclear what the optimum exercise is. Exercise, supported by advice and education, should be at the core of self-management strategies for chronic low back pain and osteoarthritis.

Integral definition of the logarithmic function and the derivative of the exponential function in calculus

NASA Astrophysics Data System (ADS)

Vaninsky, Alexander

2015-04-01

Defining the logarithmic function as a definite integral with a variable upper limit, an approach used by some popular calculus textbooks, is problematic. We discuss the disadvantages of such a definition and provide a way to fix the problem. We also consider a definition-based, rigorous derivation of the derivative of the exponential function that is easier, more intuitive, and complies with the standard definitions of the number e, the logarithmic, and the exponential functions.

Peer-assisted learning (PAL) in undergraduate medical education: An overview.

PubMed

Herrmann-Werner, Anne; Gramer, Regina; Erschens, Rebecca; Nikendei, Christoph; Wosnik, Annette; Griewatz, Jan; Zipfel, Stephan; Junne, Florian

2017-04-01

Peer-assisted learning (PAL) has a long tradition and is nowadays implemented in the curricula of most medical faculties. Besides traditional areas of application like problem-based learning, anatomy, or CPR, more and more departments and institutes have established PAL as part of their everyday teaching. This narrative review provides some background information and basic definitions of PAL. It offers an overview on features and determinants as well as underlying learning theories and developments in PAL. In addition, motives for implementation are highlighted followed by a comparison of advantages and disadvantages. After outlining aspects of quality management including the training of tutors and the evaluation and acceptance of PAL formats, this review concludes with an outlook on how PAL can proceed into the future and where further research is necessary. Copyright © 2017. Published by Elsevier GmbH.

Ponderable soliton stars

NASA Technical Reports Server (NTRS)

Chiu, Hong-Yee

1990-01-01

The theory of Lee and Pang (1987), who obtained solutions for soliton stars composed of zero-temperature fermions and bosons, is applied here to quark soliton stars. Model soliton stars based on a simple physical model of the proton are computed, and the properties of the solitons are discussed, including the important problem of the existence of a limiting mass and thus the possible formation of black holes of primordial origin. It is shown that there is a definite mass limit for ponderable soliton stars, so that during cooling a soliton star might reach a stage beyond which no equilibrium configuration exists and the soliton star probably will collapse to become a black hole. The radiation of ponderable soliton stars may alter the short-wavelength character of the cosmic background radiation, and may be observed as highly redshifted objects at z of about 100,000.

Numerical calculation of ion runaway distributions

DOE Office of Scientific and Technical Information (OSTI.GOV)

Embréus, O.; Stahl, A.; Hirvijoki, E.

2015-05-15

Ions accelerated by electric fields (so-called runaway ions) in plasmas may explain observations in solar flares and fusion experiments; however, limitations of previous analytic work have prevented definite conclusions. In this work, we describe a numerical solver of the 2D non-relativistic linearized Fokker-Planck equation for ions. It solves the initial value problem in velocity space with a spectral-Eulerian discretization scheme, allowing arbitrary plasma composition and time-varying electric fields and background plasma parameters. The numerical ion distribution function is then used to consider the conditions for runaway ion acceleration in solar flares and tokamak plasmas. Typical time scales and electric fieldsmore » required for ion acceleration are determined for various plasma compositions, ion species, and temperatures, and the potential for excitation of toroidal Alfvén eigenmodes during tokamak disruptions is considered.« less

Myths and realities: Defining re-engineering for a large organization

NASA Technical Reports Server (NTRS)

Yin, Sandra; Mccreary, Julia

1992-01-01

This paper describes the background and results of three studies concerning software reverse engineering, re-engineering, and reuse (R3) hosted by the Internal Revenue Service in 1991 and 1992. The situation at the Internal Revenue--aging, piecemeal computer systems and outdated technology maintained by a large staff--is familiar to many institutions, especially among management information systems. The IRS is distinctive for the sheer magnitude and diversity of its problems; the country's tax records are processed using assembly language and COBOL and spread across tape and network DBMS files. How do we proceed with replacing legacy systems? The three software re-engineering studies looked at methods, CASE tool support, and performed a prototype project using re-engineering methods and tools. During the course of these projects, we discovered critical issues broader than the mechanical definitions of methods and tool technology.

Treatment of lithium intoxication: facing the need for evidence.

PubMed

Haussmann, R; Bauer, M; von Bonin, S; Grof, P; Lewitzka, U

2015-12-01

Lithium has been used as the gold standard in the treatment of major depressive and bipolar disorders for decades. Due to its narrow therapeutic index, lithium toxicity is a common clinical problem. Although risk factors for lithium intoxication seem to be well-described, lacking patient education and inexperience of treatment are assumed to contribute to the probability of lithium intoxication. A review of literature shows that the treatment of lithium intoxication has not been adequately studied or standardized. The aim of this literature review is to compile and present current evidence on the treatment of lithium intoxication and contribute to a standardization regarding general treatment recommendations as well as evidence on indication for extracorporeal methods. Against the background of this common and potentially life-threatening condition, the standardization of the treatment of lithium intoxication is definitely a task for the future.

Application of Research on the Metallogenic Background in the Assessment of Mineral Resources Potentiality

NASA Astrophysics Data System (ADS)

Jia, D.; Feng, Y.; Liu, J.; Yao, X.; Zhang, Z.; Ye, T.

2017-12-01

1. Working BackgroundCurrent Status of Geological Prospecting: Detecting boundaries and bottoms, making ore search nearby; Seeing the stars, not seeing the Moon; Deep prospecting, undesirable results. The reasons of these problems are the regional metallogenic backgroud unclear and the metallogenic backgroud of the exploration regions unknown. Accordingly, Development and Research Center, CGS organized a geological setting research, in detail investigate metallogenic geological features and acquire mineralization information. 2. Technical SchemeCore research content is prediction elements of Metallogenic Structure. Adopt unified technical requirements from top to bottom, and technical route from bottom to top; Divide elements of mineral forecast and characteristics of geological structure into five elements for research and expression; Make full use of geophysical, geochemical and remote sensing inferences for the interpretation of macro information. After eight years the great project was completed. 3. Main AchievementsInnovation of basic maps compilation content of geological background, reinforce of geological structure data base of potentiality valuation. Preparation of geotectonic facies maps in different scales and professions, providing brand-new geologic background for potentiality assessment, promoting Chinese geotectonic research to the new height. Preparation of 3,375 geological structure thematic base maps of detecting working area in 6 kinds of prediction methods, providing base working maps, rock assemblage, structure of the protolith of geologic body / mineralization / ore controlling for mineral prediction of 25 ores. Enrichment and development of geotectonic facies analysis method, establishment of metallogenic background research thoughts and approach system for assessment of national mineral resources potentiality for the first time. 4. Application EffectOrientation——More and better results with less effort. Positioning——Have a definite object in view. Heart calm down——Confidence.

16 CFR 1616.2 - Definitions.

Code of Federal Regulations, 2011 CFR

2011-01-01

... have a yellow background and black lettering. The color yellow must meet the specifications for... blank. The text must not be obscured by the hole provided for attaching the hangtag to the garment. The... text must be 11 point Arial/Helvetica in black lettering against a yellow background. The packages must...

Problem-Framing: A perspective on environmental problem-solving

NASA Astrophysics Data System (ADS)

Bardwell, Lisa V.

1991-09-01

The specter of environmental calamity calls for the best efforts of an involved public. Ironically, the way people understand the issues all too often serves to discourage and frustrate rather than motivate them to action. This article draws from problem-solving perspectives offered by cognitive psychology and conflict management to examine a framework for thinking about environmental problems that promises to help rather than hinder efforts to address them. Problem-framing emphasizes focusing on the problem definition. Since how one defines a problem determines one's understanding of and approach to that problem, being able to redefine or reframe a problem and to explore the “problem space” can help broaden the range of alternatives and solutions examined. Problem-framing incorporates a cognitive perspective on how people respond to information. It explains why an emphasis on problem definition is not part of people's typical approach to problems. It recognizes the importance of structure and of having ways to organize that information on one's problem-solving effort. Finally, problem-framing draws on both cognitive psychology and conflict management for strategies to manage information and to create a problem-solving environment that not only encourages participation but can yield better approaches to our environmental problems.

Information needs related to extension service and community outreach.

PubMed

Bottcher, Robert W

2003-06-01

Air quality affects everyone. Some people are affected by air quality impacts, regulations, and technological developments in several ways. Stakeholders include the medical community, ecologists, government regulators, industries, technology providers, academic professionals, concerned citizens, the news media, and elected officials. Each of these groups may perceive problems and opportunities differently, but all need access to information as it is developed. The diversity and complexity of air quality problems contribute to the challenges faced by extension and outreach professionals who must communicate with stakeholders having diverse backgrounds. Gases, particulates, biological aerosols, pathogens, and odors all require expensive and relatively complex technology to measure and control. Economic constraints affect the ability of regulators and others to measure air quality, and industry and others to control it. To address these challenges, while communicating air quality research results and concepts to stakeholders, three areas of information needs are evident. (1) A basic understanding of the fundamental concepts regarding air pollutants and their measurement and control is needed by all stakeholders; the Extension Specialist, to be effective, must help people move some distance up the learning curve. (2) Each problem or set of problems must be reasonably well defined since comprehensive solution of all problems simultaneously may not be feasible; for instance, the solution of an odor problem associated with animal production may not address atmospheric effects due to ammonia emissions. (3) The integrity of the communication process must be preserved by avoiding prejudice and protectionism; although stakeholders may seek to modify information to enhance their interests, extension and outreach professionals must be willing to present unwelcome information or admit to a lack of information. A solid grounding in fundamental concepts, careful and fair problem definition, and a resolute commitment to integrity and credibility will enable effective communication of air quality information to and among diverse stakeholders.

A Mathematical Experience Involving Defining Processes: In-Action Definitions and Zero-Definitions

ERIC Educational Resources Information Center

Ouvrier-Buffet, Cecile

2011-01-01

In this paper, a focus is made on defining processes at stake in an unfamiliar situation coming from discrete mathematics which brings surprising mathematical results. The epistemological framework of Lakatos is questioned and used for the design and the analysis of the situation. The cognitive background of Vergnaud's approach enriches the study…

A Scoping Review of Scoping Reviews: Advancing the Approach and Enhancing the Consistency

ERIC Educational Resources Information Center

Pham, Mai T.; Rajic, Andrijana; Greig, Judy D.; Sargeant, Jan M.; Papadopoulos, Andrew; McEwen, Scott A.

2014-01-01

Background: The scoping review has become an increasingly popular approach for synthesizing research evidence. It is a relatively new approach for which a universal study definition or definitive procedure has not been established. The purpose of this scoping review was to provide an overview of scoping reviews in the literature. Methods: A…

Defining of the BDX930 Assembly Language

NASA Technical Reports Server (NTRS)

Boyer, R. S.; Moore, J. S.

1983-01-01

A definition of the BDX930 assembly language is presented. Various definition problems and suggested solutions are included. A class of defined recognizers based on boolean valued nowrecursive functions is employed in preprocessing.

Honor crimes: review and proposed definition.

PubMed

Elakkary, Sally; Franke, Barbara; Shokri, Dina; Hartwig, Sven; Tsokos, Michael; Püschel, Klaus

2014-03-01

There is every reason to believe that honor based violence is one of the forms of domestic violence that is being practiced against females all over the world. This type of violence includes a wide range of crimes, the severest of which is honor killing. Many studies have adopted different definitions for the so-called honor killing. In this paper some of these definitions are discussed and a working definition is proposed. The scope of the problem worldwide is presented. Honor killing goes beyond ethnicity, class, and religion. It is a very old phenomenon that was practiced in ancient Rome, guided by penal codes. Some of the older as well as new penal codes are discussed concerning this matter from different regions of the world. The different efforts of international governmental and nongovernmental organizations in combating this problem are also presented.

Assessment of the Influence of Background Noise on Escape-Maintained Problem Behavior and Pain Behavior in a Child with Williams Syndrome.

ERIC Educational Resources Information Center

O'Reilly, Mark F.; Lacey, Claire; Lancioni, Giulio E.

2000-01-01

A study examined the influence of background noise on levels of problem behavior and pain behavior under functional analysis conditions for a 5-year-old with Williams syndrome and hyperacusis. When the child was fitted with earplugs, there were substantial decreases in both problem and pain behavior under the background noise condition. (Contains…

Lessons In Operational Art: An Analysis of the Allied Expeditionary Forces in North Russia, 1918-1919

DTIC Science & Technology

2014-04-30

operations. To identify these lessons, this monograph first reviews the origins and definitions of operational art. Next, the case study of the...commanders to consider in future expeditionary operations. To identify these lessons, this monograph first reviews the origins and definitions of...environment to better understand the problem or problems at hand.”4 The next section describes the origins and modern theoretical explanations of

[Child abuse: a world problem].

PubMed

Santana-Tavira, R; Sánchez-Ahedo, R; Herrera-Basto, E

1998-01-01

Several problems are encountered in the study of child abuse: ignorance of its real proportions, deep cultural and historical roots, diversity of opinion as to its definition and classification and, finally, very diverse considerations on its repercussions and therapeutic management. The present study approaches child abuse from its historical precedents, its classifications, definitions and epidemiology. In addition, repercussions are reviewed, and treatment alternatives considered which are held as fundamental to confront this alarmingly increasing phenomenon. It is important to unify criteria as to the definition and classification of scientific information surrounding demographic data which, in the end, will situate the problem, the progress related to its causes, diagnosis, preventive measures and treatment. It is extremely important to prevent child abuse by all possible means, since this harm is reflected in the adult life of the child. Various classifications are considered, as well as characteristics of the abuser and of the abused.

A Bourdieusian Analysis of U.S. Military Culture Ground in the Mental Help-Seeking Literature.

PubMed

Abraham, Traci; Cheney, Ann M; Curran, Geoffrey M

2017-09-01

This theoretical treatise uses the scientific literature concerning help seeking for mental illness among those with a background in the U.S. military to posit a more complex definition of military culture. The help-seeking literature is used to illustrate how hegemonic masculinity, when situated in the military field, informs the decision to seek formal treatment for mental illness among those men with a background in the U.S. military. These analyses advocate for a nuanced, multidimensional, and situated definition of U.S. military culture that emphasizes the way in which institutional structures and social relations of power intersect with individual values, beliefs, and motivations to inform and structure health-related practices.

Teaching Students with Special Needs in the 21st-Century Classroom. A Scarecrow Education Book.

ERIC Educational Resources Information Center

Mayberry, Sally Cox; Lazarus, Brenda Belson

This book offers educators both background information and practical guidance for implementing the inclusion of students with special needs in their classrooms. Part 1 provides background information with chapters on what inclusion is, an historical perspective and the laws, the rationale for inclusion, definitions of specific disabilities, and…

Focus on Literacy. Part 1: The Numbers Game. A National Association of Broadcasters On-Air Initiative.

ERIC Educational Resources Information Center

Lewis, Anne; And Others

This booklet provides background information on literacy for television and radio broadcasters. It focuses first on the numbers of functionally illiterate persons in the United States and what those numbers mean. Central to understanding those numbers, as pointed out by the booklet, is the definition of illiteracy that is used, a definition that…

Will the right Robin patient rise, please? Definitions and criteria during management of Robin sequence patients in the Netherlands and Belgium.

PubMed

Basart, Hanneke; Kruisinga, Frea H; Breugem, Corstiaan C; Don Griot, J Peter W; Hennekam, Raoul C; Van der Horst, Chantal M A M

2015-01-01

Robin Sequence (RS) is characterized by micrognathia and upper airway obstruction (UAO), with or without cleft palate, causing respiratory and feeding problems. Management options are: positioning; nasopharyngeal airway (NPA); tongue-lip adhesion (TLA); mandibular distraction (MDO); and tracheostomy. Controversy exists in literature regarding RS definition and management. Here we describe definitions, management strategies and criteria in opting for management strategies, used by Dutch and Belgian cleft teams. A specifically designed questionnaire was sent to members of all 16 Dutch and Belgian cleft teams. 14 cleft teams returned 35 questionnaires. All used micrognathia as definition criterion, 93.4% cleft palate, 51.5%glossoptosis and 45.7% UAO. Six different RS definitions were used; even within a single team >1 definition was used. All teams used different management strategies: all used positioning, 10 NPA, 6 TLA, 7 MDO, 8 tracheostomy, 5 refer patients with invasive treatment indication. Criteria in opting management modalities were: O2-saturation (89.3%), clinical presentation (86.2%), growth and feeding problems (69.0%), polysomnography (62.1%), and differed within teams. The Dutch and Belgian cleft teams use variable RS definitions, different management modalities and criteria in choosing management strategies. A single, strict definition and evidence-based management guidelines should be formulated for optimal patient care. Copyright © 2014 European Association for Cranio-Maxillo-Facial Surgery. Published by Elsevier Ltd. All rights reserved.

Assessing quality of life in diabetes: I. A practical guide to selecting the best instruments and using them wisely.

PubMed

Fisher, Lawrence; Tang, Tricia; Polonsky, William

2017-04-01

The rapid development of new medications and devices in diabetes research and clinical care has led to an increased need to assess their impact on health-related quality of life (HRQOL). Unfortunately, the lack of consensus definitions and guidelines has led to the use of HRQOL measures that are often imprecise and inappropriate. The goal of this report is to provide a practical structure to the definition and measurement of HRQOL in diabetes research and clinical care. Following a brief historical background to provide context, we define HRQOL and provide a three-step framework for scale selection: identify the specific, proximal intervention targets; decide how reaching these targets will affect HRQOL; and select appropriate measures based on sample diversity, the intervention and the targets using a 2×2 grid (generic vs. diabetes specific measures; global vs. component measures). Practical tips for scale selection include: gaining patient input to document important potential HRQOL effects, varying scale selection by patient characteristics, considering common HRQOL measurement problems, and considering the timing of HRQOL assessment. We emphasize the importance of a careful, planned evaluation of HRQOL in diabetes, rather than an "off the shelf" approach. Copyright © 2016 Elsevier Ireland Ltd. All rights reserved.

Quelques problemes poses a la grammaire casuelle (Some Problems Regarding Case Grammar)

ERIC Educational Resources Information Center

Fillmore, Charles J.

1975-01-01

Discusses problems related to case grammar theory, including: the organizations of a case grammar; determination of semantic roles; definition and hierarchy of cases; cause-effect relations; and formalization and notation. (Text is in French.) (AM)

Using templates and linguistic patterns to define process performance indicators

NASA Astrophysics Data System (ADS)

del-Río-Ortega, Adela; Resinas, Manuel; Durán, Amador; Ruiz-Cortés, Antonio

2016-02-01

Process performance management (PPM) aims at measuring, monitoring and analysing the performance of business processes (BPs), in order to check the achievement of strategic and operational goals and to support decision-making for their optimisation. PPM is based on process performance indicators (PPIs), so having an appropriate definition of them is crucial. One of the main problems of PPIs definition is to express them in an unambiguous, complete, understandable, traceable and verifiable manner. In practice, PPIs are defined informally - usually in ad hoc, natural language, with its well-known problems - or they are defined from an implementation perspective, hardly understandable to non-technical people. In order to solve this problem, in this article we propose a novel approach to improve the definition of PPIs using templates and linguistic patterns. This approach promotes reuse, reduces both ambiguities and missing information, is understandable to all stakeholders and maintains traceability with the process model. Furthermore, it enables the automated processing of PPI definitions by its straightforward translation into the PPINOT metamodel, allowing the gathering of the required information for their computation as well as the analysis of the relationships between them and with BP elements.

A Comparison of Bridging Methods in the Analysis of NAEP Trends with the New Race Subgroup Definitions

ERIC Educational Resources Information Center

Meyer, J. Patrick; Setzer, J. Carl

2009-01-01

Recent changes to federal guidelines for the collection of data on race and ethnicity allow respondents to select multiple race categories. Redefining race subgroups in this manner poses problems for research spanning both sets of definitions. NAEP long-term trends have used the single-race subgroup definitions for over thirty years. Little is…

Organic food processing: a framework for concept, starting definitions and evaluation.

PubMed

Kahl, Johannes; Alborzi, Farnaz; Beck, Alexander; Bügel, Susanne; Busscher, Nicolaas; Geier, Uwe; Matt, Darja; Meischner, Tabea; Paoletti, Flavio; Pehme, Sirli; Ploeger, Angelika; Rembiałkowska, Ewa; Schmid, Otto; Strassner, Carola; Taupier-Letage, Bruno; Załęcka, Aneta

2014-10-01

In 2007 EU Regulation (EC) 834/2007 introduced principles and criteria for organic food processing. These regulations have been analysed and discussed in several scientific publications and research project reports. Recently, organic food quality was described by principles, aspects and criteria. These principles from organic agriculture were verified and adapted for organic food processing. Different levels for evaluation were suggested. In another document, underlying paradigms and consumer perception of organic food were reviewed against functional food, resulting in identifying integral product identity as the underlying paradigm and a holistic quality view connected to naturalness as consumers' perception of organic food quality. In a European study, the quality concept was applied to the organic food chain, resulting in a problem, namely that clear principles and related criteria were missing to evaluate processing methods. Therefore the goal of this paper is to describe and discuss the topic of organic food processing to make it operational. A conceptual background for organic food processing is given by verifying the underlying paradigms and principles of organic farming and organic food as well as on organic processing. The proposed definition connects organic processing to related systems such as minimal, sustainable and careful, gentle processing, and describes clear principles and related criteria. Based on food examples, such as milk with different heat treatments, the concept and definitions were verified. Organic processing can be defined by clear paradigms and principles and evaluated according criteria from a multidimensional approach. Further work has to be done on developing indicators and parameters for assessment of organic food quality. © 2013 Society of Chemical Industry.

On some universal features of the holographic quantum complexity of bulk singularities

NASA Astrophysics Data System (ADS)

Bolognesi, Stefano; Rabinovici, Eliezer; Roy, Shubho R.

2018-06-01

We perform a comparative study of the time dependence of the holographic quantum complexity of some space like singular bulk gravitational backgrounds. This is done by considering the two available notions of complexity, one that relates it to the maximal spatial volume and the other that relates it to the classical action of the Wheeler-de Witt patch. We calculate and compare the leading and the next to leading terms and find some universal features. The complexity decreases towards the singularity for both definitions, for all types of singularities studied. In addition the leading terms have the same quantitative behavior for both definitions in restricted number of cases and the behaviour itself is different for different singular backgrounds. The quantitative details of the next to leading terms, such as their specific form of time dependence, are found not to be universal. They vary between the different cases and between the different bulk definitions of complexity. We also address some technical points inherent to the calculation.

Automatic background updating for video-based vehicle detection

NASA Astrophysics Data System (ADS)

Hu, Chunhai; Li, Dongmei; Liu, Jichuan

2008-03-01

Video-based vehicle detection is one of the most valuable techniques for the Intelligent Transportation System (ITS). The widely used video-based vehicle detection technique is the background subtraction method. The key problem of this method is how to subtract and update the background effectively. In this paper an efficient background updating scheme based on Zone-Distribution for vehicle detection is proposed to resolve the problems caused by sudden camera perturbation, sudden or gradual illumination change and the sleeping person problem. The proposed scheme is robust and fast enough to satisfy the real-time constraints of vehicle detection.

Using Problem-Based Learning to Enhance Team and Player Development in Youth Soccer

ERIC Educational Resources Information Center

Hubball, Harry; Robertson, Scott

2004-01-01

Problem-based learning (PBL) is a coaching and teaching methodology that develops knowledge, abilities, and skills. It also encourages participation, collaborative investigation, and the resolution of authentic, "ill-structured" problems through the use of problem definition, teamwork, communication, data collection, decision-making,…

Widespread pain: is an improved classification possible?

PubMed

MacFarlane, G J; Croft, P R; Schollum, J; Silman, A J

1996-09-01

The classification of widespread pain, proposed by the American College of Rheumatology (ACR) for use in the clinic as a screen for fibromyalgia, as described, does not require truly widespread pain. Studies considering the epidemiology of widespread pain per se may therefore require a definition with greater face validity, which might also show enhanced associations with other physical and psychological measures. We aimed to develop a more coherent definition of widespread pain for use in epidemiological studies and to compare performance in identifying individuals with significant morbidity. A group of 172 subjects who had participated in a community based study on the occurrence of pain were identified and categorized by their pain experience as indicated on line drawings of the body according to ACR definition and to a new, more stringent definition that required the presence of more diffuse limb pain. A number of other clinical and psychological measures were recorded for these individuals and the association between their pain status measures and these other variables was assessed and compared. Persons satisfying the newly proposed definition for chronic widespread pain, in comparison with those who satisfied only the present ACR definition, had a significantly higher score on the General Health Questionnaire [median difference (MD) 7.95% CI 1.13], a higher score on the Health and Fatigue Questionnaire (MD 10.95% CI 0.15), and greater problems with sleep (sleep problem score MD 4.95% CI 0.9). Those satisfying the new definition also had a greater number of tender points on examination (MD 3.95% CI -1.7). The morbidity of those satisfying only the present ACR definition was closer to persons who had regional pain. A redefinition of widespread pain has produced a group of subjects whose pain is (a) likely to be more "widespread" and (b) is associated more strongly with factors such as psychological disturbance, fatigue, sleep problems, and tender points, and may be more appropriate in epidemiological studies.

Chromatographic test methods for characterizing alkylsiloxane-bonded silica columns for reversed-phase liquid chromatography.

PubMed

Poole, Colin F

2018-06-07

Major obstacles to formulating a simple retention mechanism for reversed-phase liquid chromatography have a direct impact on the development of experimental methods for column characterization as they limit our capability to understand observed differences in retention at a system level. These problems arise from the heterogeneous composition of the stationary phase, the difficulty of providing a working definition for the phase ratio, and uncertainty as to whether the distribution mechanism for varied compounds is a partition, adsorption or mixed (combination) of these models. Retention factor and separation factor measurements offer little guidance as they represent an average of various and variable contributing factors that can only be interpreted by assuming a specific model. Column characterization methods have tended to ignore these difficulties by inventing a series of terms to describe column properties, such as hydrophobicity, hydrophilicity, silanol activity, steric resistance, etc., without proper definition. This has allowed multiple scales to be proposed for the same property which generally are only weakly correlated. Against this background we review the major approaches for the characterization of alkylsiloxane-bonded silica stationary phases employing prototypical compounds, the hydrophobic-subtraction model and the solvation parameter model. Those methods using prototypical compounds are limited by the lack of compounds with a singular dominant interaction. The multivariate approaches that extract column characteristic properties from the retention of varied compounds are more hopeful but it is important to be more precise in defining the characteristic column properties and cognizant that general interpretation of these properties for varied columns cannot escape the problem of a poor understanding of the distribution mechanism. Copyright © 2018 Elsevier B.V. All rights reserved.

Children's Mental Health: Problems and Services. Background Paper.

ERIC Educational Resources Information Center

Congress of the U.S., Washington, DC. Office of Technology Assessment.

This background paper on children's mental health indicates that less than one-third of the children who have mental health problems receive treatment. Types of mental health problems are discussed, including intellectual, developmental, behavior, emotional, psychophysiological, and adjustment disorders. Enviromental risk factors of poverty and…

Intercultural policy in times of crisis: theory and practice in the case of Turin, Italy.

PubMed

Caponio, Tiziana; Donatiello, Davide

2017-01-01

In this article we analyse how interculturalism, intended as a new paradigm of immigrant integration policies, has been taking shape in an Italian city, i.e. Turin, in the context of the current economic crisis. We argue for the necessity of going beyond official statements on intercultural policy by undertaking a comparative analysis of policy practices in three Neighbourhood Houses (NHs, Case del quartiere ), which are defined by the Municipality as open and intercultural spaces in which associations and citizens can develop activities aimed at expressing different cultural backgrounds, fostering participation and supporting social inclusion. The study shows how the three NHs pursue different approaches - social, cultural or more political - to interculturalism, somewhat reflecting the social and structural context in which the three NHs were established, as well as problem definitions and policy frames of the founding organisations.

[BASIC PRINCIPLES AND METHODS TO THE USE IMMUNOMODULATING PREPARATIONS IN CLINICAL PRACTICE: CLASSIFICATION, INDICATIONS AND CONTRAINDICATIONS].

PubMed

Sepiashvili, R

2015-06-01

This paper is devoted to one of the most pressing issues in modern clinical medicine, the problem of immunomodulators and immunotropic therapy. The materials presented are the logical sequel of the papers published by Revaz I. Sepiashvili in 2001-2015. In these articles, the author proposed the first classification of immunotropic preparations, a brief historical background and chronological emergence of the concept of therapies, as well as definition of immunomodulators. This paper presents an updated classification of immunomodulatory drugs which is valid for January 2015. The paper also outlines basic principles for therapies that allow the clinician not only to select a proper immunomodulator but also to develop strategy and tactics in treatment of the patient, taking into account his/her individual characteristics and the need to use in clinical practice only officially registered immunotropic preparations.

A Paradox of Power: Voices of Warning and Reason in the Geosciences

NASA Astrophysics Data System (ADS)

Thompson, Douglas

As a culture, we are faced with a series of increasingly complex environmental problems. As geoscientists, we are often asked to assume the role of technical experts to provide guidance or solutions to these difficult dilemmas. Unfortunately, the political, social, economic, and judicial aspects of environmental management often require geoscientists to advocate choices or provide definitive answers that are in conflict with our training as never-ending hypothesis testers and unbiased observers of nature.A Paradox of Power: Voices of Warning and Reason in the Geosciences addresses this topic by providing a collection of works that highlights various discrepancies between standard scientific procedures and the public decision-making process. The book presents a range of views and examples that provides geoscientists with a background on the issues surrounding the use of their expertise and analyses in typical law and policy decisions.

Problems, Perplexities, and Politics of Program Evaluation.

ERIC Educational Resources Information Center

Schneider, Gail Thierbach

All educational evaluations share common problems, perplexities, and political considerations. Logistic problems include incomplete definition of purpose, unclear timelines and personnel allocations, inadequate support services, and the lack of a program plan. Interpersonal dynamics and conflicts plus unwieldy committee structures are perplexities…

Defining Morphology: Hands and Feet

PubMed Central

Biesecker, Leslie G.; Aase, Jon M.; Clericuzio, Carol; Gurrieri, Fiorella; Temple, I. Karen; Toriello, Helga

2009-01-01

An international group of clinicians working in the field of Dysmorphology has initiated the (re-) definition of all terms used to describe the external human phenotype. The goal is that through standardization of all terms and consensus regarding their definitions the reliability of description of features in humans will increase, comparisons of findings between patients will become more reliable, and discussions with other workers in the field such as developmental biologists and molecular geneticists will become more accurate. Here we report on the (re-) definition of terms needed to describe the major characteristics of the hands and feet. We provide a limited description of the anatomy of this region, limited background anthropometry, and an illustrated list of definitions. PMID:19125433

Convection Regularization of High Wavenumbers in Turbulence ANS Shocks

DTIC Science & Technology

2011-07-31

dynamics of particles that adhere to one another upon collision and has been studied as a simple cosmological model for describing the nonlinear formation of...solution we mean a solution to the Cauchy problem in the following sense. Definition 5.1. A function u : R × [0, T ] 7→ RN is a weak solution of the...step 2 the limit function in the α → 0 limit is shown to satisfy the definition of a weak solution for the Cauchy problem. Without loss of generality

16 CFR § 1102.4 - Scope.

Code of Federal Regulations, 2013 CFR

2013-01-01

... AVAILABLE CONSUMER PRODUCT SAFETY INFORMATION DATABASE Background and Definitions § 1102.4 Scope. This part... Product Safety Information Database, including all information published therein. ...

Mississippi River Headwaters Lakes in Minnesota. Feasibility Study. Appendices.

DTIC Science & Technology

1982-09-01

CONTENTS ITEM PAGE INTRODUCTION A-1 PROBLEM 1 - HEADWATERS LAKES OPERATING PLANS A-1 BACKGROUND A-1 GEOLOGY AND SOILS A-3 STREAM CHARACTERISTICS A- 7...HEADWATERS LAKES A-134 BACKGROUND A- 134 GEOLOGY AND SOILS A-135 HYDROLOGY AND HYDRAULIC STUDIES A- 135 COST ESTIMATE A- 142 RECOMMENDED ACT ION A...143 PLATE SUMMARY A-144 PROBLEM 3 - EROSION PROBLEMS DOWNSTREAM OF POKEGAMA DAM A-158 BACKGROUND A- 158 GEOLOGY AND SOILS A- 158 HYDROLOGY AND HYDRAULIC

Vocational Education and Training for People from Non-English-Speaking Backgrounds. Review of Research.

ERIC Educational Resources Information Center

Volkoff, Veronica; Golding, Barry

Research on the provision of vocational education and training (VET) for Australia's very culturally diverse work force with non-English-speaking backgrounds (NESBs) considers the extent and nature of the disadvantage. The current definition of NESB limits membership to those born overseas; a proposed two-pronged approach is based on "first…

The new frontier of public health education.

PubMed

Birnbaum, David; Gretsinger, Kathryn; Ellis, Ursula

2017-02-06

Purpose The aim of this paper is to describe the experience and educational benefits of a course that has several unique educational design features. Design/methodology/approach This includes narrative description of faculty and student experience from participants in a flipped-instructional-design inter-professional education course. Findings "Improving Public Health - An Interprofessional Approach to Designing and Implementing Effective Interventions" is an undergraduate public health course open to students regardless of background. Its student activities mirror the real-life tasks and challenges of working in a public health agency, including team-building and leadership; problem and project definition and prioritization; evidence-finding and critical appraisal; written and oral presentation; and press interviews. Students successfully developed project proposals to address real problems in a wide range of communities and settings and refined those proposals through interaction with professionals from population and public health, journalism and library sciences. Practical implications Undergraduate public health education is a relatively new endeavor, and experience with this new approach may be of value to other educators. Originality/value Students in this course, journalism graduate students who conducted mock interviews with them and instructors who oversaw the course all describe unique aspects and related personal benefit from this novel approach.

Mexico City air quality research initiative. Volume 2, Problem definition, background, and summary of prior research

DOE Office of Scientific and Technical Information (OSTI.GOV)

Not Available

1994-06-01

Air pollution in Mexico City has increased along with the growth of the city, the movement of its population, and the growth of employment created by industry. The main cause of pollution in the city is energy consumption. Therefore, it is necessary to take into account the city`s economic development and its prospects when considering the technological relationships between well-being and energy consumption. Air pollution in the city from dust and other particles suspended in the air is an old problem. However, pollution as we know it today began about 50 years ago with the growth of industry, transportation, andmore » population. The level of well-being attained in Mexico City implies a high energy use that necessarily affects the valley`s natural air quality. However, the pollution has grown so fast that the City must act urgently on three fronts: first, following a comprehensive strategy, transform the economic foundation of the city with nonpolluting activities to replace the old industries, second, halt pollution growth through the development of better technologies; and third, use better fuels, emission controls, and protection of wooded areas.« less

[The concept and measurement of food security].

PubMed

Kim, Kirang; Kim, Mi Kyung; Shin, Young Jeon

2008-11-01

During the past two decades, food deprivation and hunger have been recognized to be not just the concerns of only underdeveloped or developing countries, but as problems for many affluent Western nations as well. Many countries have made numerous efforts to define and measure the extent of these problems. Based on these efforts, the theory and practice of food security studies has significantly evolved during the last decades. Thus, this study aims to provide a comprehensive review of the concept and measurement of food security. In this review, we introduce the definition and background of food security, we describe the impact of food insecurity on nutrition and health, we provide its measurements and operational instruments and we discuss its applications and implications. Some practical information for the use of the food security index in South Korea is also presented. Food security is an essential element in achieving a good nutritional and health status and it has an influence to reduce poverty. The information about the current understanding of food security can help scientists, policy makers and program practitioners conduct research and maintain outreach programs that address the issues of poverty and the promotion of food security.

Problems in Bilingual Lexicography: Romance and English

ERIC Educational Resources Information Center

Wiezell, Richard John

1975-01-01

A bilingual dictionary must be more accurate in definitions than a monolingual. This paper touches on problems of transference between languages, linguistic "cannibalism," and lexical versus connotative meaning. (CK)

16 CFR 1102.4 - Scope.

Code of Federal Regulations, 2011 CFR

2011-01-01

... CONSUMER PRODUCT SAFETY INFORMATION DATABASE (Eff. Jan. 10, 2011) Background and Definitions § 1102.4 Scope... Available Consumer Product Safety Information Database, including all information published therein. ...

A Bourdieusian Analysis of U.S. Military Culture Ground in the Mental Help-Seeking Literature

PubMed Central

Abraham, Traci; Cheney, Ann M.; Curran, Geoffrey M.

2015-01-01

This theoretical treatise uses the scientific literature concerning help seeking for mental illness among those with a background in the U.S. military to posit a more complex definition of military culture. The help-seeking literature is used to illustrate how hegemonic masculinity, when situated in the military field, informs the decision to seek formal treatment for mental illness among those men with a background in the U.S. military. These analyses advocate for a nuanced, multidimensional, and situated definition of U.S. military culture that emphasizes the way in which institutional structures and social relations of power intersect with individual values, beliefs, and motivations to inform and structure health-related practices. PMID:26229053

2T Physics, Weyl Symmetry and the Geodesic Completion of Black Hole Backgrounds

NASA Astrophysics Data System (ADS)

Araya Quezada, Ignacio Jesus

In this thesis, we discuss two different contexts where the idea of gauge symmetry and duality is used to solve the dynamics of physical systems. The first of such contexts is 2T-physics in the worldline in d+2 dimensions, where the principle of Sp(2,R) gauge symmetry in phase space is used to relate different 1T systems in (d -- 1) + 1 dimensions, such as a free relativistic particle, and a relativistic particle in an arbitrary V(x2) potential. Because each 1T shadow system corresponds to a particular gauge of the underlying symmetry, there is a web of dualities relating them. The dualities between said systems amount to canonical transformations including time and energy, which allows the different systems to be described by different Hamiltonians, and consequently, to correspond to different dynamics in the (d -- 1)+1 phase space. The second context, corresponds to a Weyl invariant scalar-tensor theory of gravity, obtained as a direct prediction of 2T gravity, where the Weyl symmetry is used to obtain geodesically complete dynamics both in the context of cosmology and black hole (BH) backgrounds. The geodesic incompleteness of usual Einstein gravity, in the presence of singularities in spacetime, is related to the definition of the Einstein gauge, which fixes the sign and magnitude of the gravitational constant GN, and therefore misses the existence of antigravity patches, which are expected to arise generically just beyond gravitational singularities. The definition of the Einstein gauge can be generalized by incorporating a sign flip of the gravitational constant GN at the transitions between gravity and antigravity. This sign is a key aspect that allows us to define geodesically complete dynamics in cosmology and in BH backgrounds, particularly, in the case of the 4D Schwarzschild BH and the 2D stringy BH. The complete nature of particle geodesics in these BH backgrounds is exhibited explicitly at the classical level, and the extension of these results to the behavior of fields, interpreted as the first quantized particle wavefunctions in the backgrounds is discussed for the 2D stringy BH case. It is shown that the geodesic completion also carries through at the quantum level, by examining the effective potential of the corresponding Schwarzschild problem. Also, in the case of the 2D stringy BH, it is explicitly shown that the spacetime has a multi-sheeted structure, which resolves possible issues like the presence of closed timelike curves. This multi-sheeted structure is conjectured to exist also for the 4D Schwarzschild BH (and perhaps for all BH backgrounds). The main new results of this thesis are the extended network of dualities, in the form of canonical transformations including time and energy, between the 1T dynamical systems, presented in Chapter 2 and the construction of the geodesically complete 4D Schwarzschild and 2D stringy black hole backgrounds, presented in Chapter 3.

Bipolar disorder-methodological problems and future perspectives

PubMed Central

Angst, Jules

2008-01-01

Since its “rebirth” in 1966, bipolar disorder (BPD) has rapidly come to occupy a central position in the research and treatment of mood disorders. Compared with major depressive disorder (MDD), BPD is a more serious condition, characterized by much more frequent recurrence, more complex comorbidity, and higher mortality. One major problem is the lack of valid definitions in adult and in child psychiatry; the current definitions are unsatisfactory, and heavily favor an overdiagnosis of MDD. Biological research is partially based on those definitions, which have a short half-life. An additional, dimensional, approach, quantifying hypomania, depression, and anxiety by self-assessment and symptom checklists is recommended, A further, related problem is the early recognition of the onset of BPD, especially in adolescence, and the identification of correlates in childhood. Early and timely diagnosis of BPD is necessary to enable prompt intervention and secondary prevention of the disorder. The paper describes the current status and future directions of developing clinical concepts of bipolarity PMID:18689284

Temporary Stabilization with External Fixator in ‘Tripolar’ Configuration in Two Steps Treatment of Tibial Pilon Fractures

PubMed Central

Daghino, Walter; Messina, Marco; Filipponi, Marco; Alessandro, Massè

2016-01-01

Background: The tibial pilon fractures represent a complex therapeutic problem for the orthopedic surgeon, given the frequent complications and outcomes disabling. The recent medical literature indicates that the best strategy to reduce amount of complications in tibial pilon fractures is two-stages procedure. We describe our experience in the primary stabilization of these fractures. Methods: We treated 36 cases with temporary external fixation in a simple configuration, called "tripolar": this is an essential structure (only three screws and three rods), that is possible to perform even without the availability of X-rays and with simple anesthesia or sedation. Results: We found a sufficient mechanical stability for the nursing post-operative, in absence of intraoperative and postoperative problems. The time between trauma and temporary stabilization ranged between 3 and 144 hours; surgical average time was 8.4 minutes. Definitive treatment was carried out with a delay of a minimum of 4 and a maximum of 15 days from the temporary stabilization, always without problems, both in case of ORIF (open reduction, internal fixation) or circular external fixation Conclusion: Temporary stabilization with external fixator in ‘tripolar’ configuration seems to be the most effective strategy in two steps treatment of tibial pilon fractures. These preliminary encouraging results must be confirmed by further studies with more cases. PMID:27123151

The Factors Affecting Definition of Research Problems in Educational Technology Researches

ERIC Educational Resources Information Center

Bahçekapili, Ekrem; Bahçekapili, Tugba; Fis Erümit, Semra; Göktas, Yüksel; Sözbilir, Mustafa

2013-01-01

Research problems in a scientific research are formed after a certain process. This process starts with defining a research topic and transforms into a specific research problem or hypothesis. The aim of this study was to examine the way educational technology researchers identify their research problems. To this end, sources that educational…

Distributed problem solving by pilots and dispatchers

NASA Technical Reports Server (NTRS)

Orasanu, Judith; Wich, Mike; Fischer, Ute; Jobe, Kim; Mccoy, Elaine; Beatty, Roger; Smith, Phil

1993-01-01

The study addressed the following question: Are flight planning problems solved differently by PILOTS and DISPATCHERS when they work alone versus when they work together? Aspect of their performance that were of interest include the following: Problem perception and definition; Problem solving strategies and information use; Options considered; Solution and rational; and errors.

A Contingency View of Problem Solving in Schools: A Case Analysis

ERIC Educational Resources Information Center

Hanson, E. Mark; Brown, Michael E.

1977-01-01

Gives definition to the problem-solving process as a cycle of events. The cycle contains numerous stages at which the problem can be deflected in any number of directions depending on the various contingencies surrounding the situation. As a result, problem solving is often an unpredictable process. (Author/IRT)

Teenage Pregnancy: A Theoretical Analysis of a Social Problem.

ERIC Educational Resources Information Center

Davis, Richard A.

1989-01-01

Broadly outlines scope of the problem of teenage pregnancy, some of its more obvious causes, and some of the long-term implications of not truly understanding the nature of the problem. Concludes with theoretical critique of social disorganizational, social definitional, and social organizational approaches to the problem of teenage pregnancy.…

Dynamics of on-orbit construction process

NASA Technical Reports Server (NTRS)

Chiou, J. C.; Alexander, S.; Natori, M. C.; Mikulas, M.; Park, K. C.

1991-01-01

The topics covered are presented in viewgraph form and include the following: problem definition and motivation; survey of current technology; focus problems; approach; progress/discussion; and future direction and anticipated results.

Children with behavioral problems and motor problems have a worse neurological condition than children with behavioral problems only.

PubMed

Peters, Lieke H J; Maathuis, Carel G B; Hadders-Algra, Mijna

2014-12-01

Some evidence suggests that children with specific behavioral problems are at risk for motor problems. It is unclear whether neurological condition plays a role in the propensity of children with behavioral problems to develop motor problems. To examine the relation between behavioral problems, motor performance and neurological condition in school-aged children. Cross-sectional study. 174 children (95 boys) receiving mainstream education and 106 children (82 boys) receiving special education aged 6 to 13 years (mean 9 y 7 m, SD 1 y 10 m). Behavior was assessed with questionnaires: the parental Child Behavior Checklist (CBCL) and Teacher's Report Form (TRF). Motor performance was assessed with the Movement Assessment Battery for Children (MABC). MABC-scores ≥5th percentile were considered as age-adequate and scores <5th percentile indicated definite motor problems. Neurological condition was assessed in terms of Minor Neurological Dysfunction (MND). The majority of specific behavioral problems were associated with definite motor problems, except somatic complaints and rule breaking behavior. Children with externalizing problems, according to the CBCL or TRF, and motor problems had more often MND than children with externalizing problems only. The same holds true for internalizing problems according to the CBCL. The present study demonstrated that various forms of behavioral problems were associated with motor problems. Especially children with motor and behavioral problems showed MND. Copyright © 2014 Elsevier Ltd. All rights reserved.

Prostitutes and chimney sweeps both have problems: towards full integration of both sexes in the study of occupational health.

PubMed

Messing, K; Dumais, L; Romito, P

1993-01-01

Recently, natural and social scientists have pointed out that the need to make scientific results apply to both sexes is not met by simply adding women as research subjects. They suggest that the social and biological specificity of both sexes must be recognized and adjustments made to the ways questions are asked, hypotheses are generated, research subjects are chosen, and data are analysed. It is important to examine the definitions, concepts and methods used in research in occupational health to see whether they obstruct recognition of women's occupational health problems or interfere with gender-neutral standard setting. Unravelling the effects of sex on occupational health is complicated by the fact that women and men do not, by and large, work at the same jobs. Definitions of "work" must in some cases be adjusted to take account of women's occupations, just as definitions involving "health" must include women's biological specificity. Appropriate changes must be made to generate sex-inclusive definitions of exposures to occupational hazards and of health effects. Methods for evaluating exposures typical of women's work must be developed. Women and their work must be appropriately included when standards for occupational exposures are set. If these adjustments are not made, women's occupational health problems will be seriously underestimated and understanding of health problems of both sexes will be hindered. Sociological analysis should also be done to reveal the mechanisms by which biased concepts and procedures develop and are reinforced.

Measuring nanoparticles size distribution in food and consumer products: a review.

PubMed

Calzolai, L; Gilliland, D; Rossi, F

2012-08-01

Nanoparticles are already used in several consumer products including food, food packaging and cosmetics, and their detection and measurement in food represent a particularly difficult challenge. In order to fill the void in the official definition of what constitutes a nanomaterial, the European Commission published in October 2011 its recommendation on the definition of 'nanomaterial'. This will have an impact in many different areas of legislation, such as the European Cosmetic Products Regulation, where the current definitions of nanomaterial will come under discussion regarding how they should be adapted in light of this new definition. This new definition calls for the measurement of the number-based particle size distribution in the 1-100 nm size range of all the primary particles present in the sample independently of whether they are in a free, unbound state or as part of an aggregate/agglomerate. This definition does present great technical challenges for those who must develop valid and compatible measuring methods. This review will give an overview of the current state of the art, focusing particularly on the suitability of the most used techniques for the size measurement of nanoparticles when addressing this new definition of nanomaterials. The problems to be overcome in measuring nanoparticles in food and consumer products will be illustrated with some practical examples. Finally, a possible way forward (based on the combination of different measuring techniques) for solving this challenging analytical problem is illustrated.

Solving Constraint-Satisfaction Problems In Prolog Language

NASA Technical Reports Server (NTRS)

Nachtsheim, Philip R.

1991-01-01

Technique for solution of constraint-satisfaction problems uses definite-clause grammars of Prolog computer language. Exploits fact that grammar-rule notation viewed as "state-change notation". Facilitates development of dynamic representation performing informed as well as blind searches. Applicable to design, scheduling, and planning problems.

Youth at Risk: In Search of a Definition.

ERIC Educational Resources Information Center

Tidwell, Romeria; Garrett, Susan Corona

1994-01-01

Reviews the definitions of the term "youth at risk" and their perspectives on predisposing conditions. Discusses implications for counseling. Asserts that the sound diagnosis and treatment of adolescents' problems involves careful identification of predisposing conditions and negative outcomes. Includes 16 citations. (Author/CRR)

Continuous Problem of Function Continuity

ERIC Educational Resources Information Center

Jayakody, Gaya; Zazkis, Rina

2015-01-01

We examine different definitions presented in textbooks and other mathematical sources for "continuity of a function at a point" and "continuous function" in the context of introductory level Calculus. We then identify problematic issues related to definitions of continuity and discontinuity: inconsistency and absence of…

The prevalence of Achilles and patellar tendon injuries in Australian football players beyond a time-loss definition.

PubMed

Docking, S I; Rio, E; Cook, J; Orchard, J W; Fortington, L V

2018-03-23

Little is known about the prevalence and associated of morbidity of tendon problems. With only severe cases of tendon problems missing games, players that have their training and performance impacted are not captured by traditional injury surveillance. The aim of this study was to report the prevalence of Achilles and patellar tendon problems in elite male Australian football players using the Oslo Sports Trauma Research Centre (OSTRC) overuse questionnaire, compared to a time-loss definition. Male athletes from 12 professional Australian football teams were invited to complete a monthly questionnaire over a 9-month period in the 2016 pre- and competitive season. The OSTRC overuse injury questionnaire was used to measure the prevalence and severity of Achilles and patellar tendon symptoms and was compared to traditional match-loss statistics. A total of 441 participants were included. Of all participants, 21.5% (95% CI: 17.9-25.6) and 25.2% (95% CI 21.3-29.4) reported Achilles or patellar tendon problems during the season, respectively. Based on the traditional match-loss definition, a combined 4.1% of participants missed games due to either Achilles or patellar tendon injury. A greater average monthly prevalence was observed during the pre-season compared to the competitive season. Achilles and patellar tendon problems are prevalent in elite male Australian football players. These injuries are not adequately captured using a traditional match-loss definition. Prevention of these injuries may be best targeted during the off- and pre-season due to higher prevalence of symptoms during the pre-season compared to during the competitive season. © 2018 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.

[State of the art diagnostic criteria of severe periodontitis].

PubMed

Ouyang, X Y

2017-02-09

Periodontitis could be categorized as mild, moderate, and severe according to the severity of the disease. This categorizing system could also be used together with other classification systems. The present article introduced the status about the case definition of severe periodontitis, including the standard of case definitions for surveillance of periodontitis reported by the Centers for Disease Control and Prevention (CDC) in partnership with the American Academy of Periodontology (AAP) and the consensus report on the definition of periodontitis case for use in risk factor research by Europe workshop. A consensus on the state of the art definition of severe periodontitis for use in clinical work was gained base on the expertise of Chinese Society of Periodontology, Chinese Association of Stomatology. The background of this consensus and the significance of the criteria for the case definition were discussed.

Identifying Patients with Severe Sepsis Using Administrative Claims: Patient-Level Validation of the Angus Implementation of the International Consensus Conference Definition of Severe Sepsis

PubMed Central

Iwashyna, Theodore J.; Odden, Andrew; Rohde, Jeffrey; Bonham, Catherine; Kuhn, Latoya; Malani, Preeti; Chen, Lena; Flanders, Scott

2012-01-01

Background Severe sepsis is a common and costly problem. Although consistently defined clinically by consensus conference since 1991, there have been several different implementations of the severe sepsis definition using ICD-9-CM codes for research. We conducted a single center, patient-level validation of one common implementation of the severe sepsis definition, the so-called “Angus” implementation. Methods Administrative claims for all hospitalizations for patients initially admitted to general medical services from an academic medical center in 2009–2010 were reviewed. On the basis of ICD-9-CM codes, hospitalizations were sampled for review by three internal medicine-trained hospitalists. Chart reviews were conducted with a structured instrument, and the gold standard was the hospitalists’ summary clinical judgment on whether the patient had severe sepsis. Results 3,146 (13.5%) hospitalizations met ICD-9-CM criteria for severe sepsis by the Angus implementation (“Angus-positive”) and 20,142 (86.5%) were Angus-negative. Chart reviews were performed for 92 randomly-selected Angus-positive and 19 randomly-selected Angus-negative hospitalizations. Reviewers had a kappa of 0.70. The Angus implementation’s positive predictive value (PPV) was 70.7% (95%CI: 51.2%, 90.5%). The negative predictive value was 91.5% (95%CI: 79.0%, 100%). The sensitivity was 50.4% (95%CI: 14.8%, 85.7%). Specificity was 96.3% (95%CI: 92.4%, 100%). Two alternative ICD-9-CM implementations had high PPVs but sensitivities of less than 20%. Conclusions The Angus implementation of the international consensus conference definition of severe sepsis offers a reasonable but imperfect approach to identifying patients with severe sepsis when compared with a gold standard of structured review of the medical chart by trained hospitalists. PMID:23001437

INVESTIGATE-I (INVasive Evaluation before Surgical Treatment of Incontinence Gives Added Therapeutic Effect?): study protocol for a mixed methods study to assess the feasibility of a future randomised controlled trial of the clinical utility of invasive urodynamic testing

PubMed Central

2011-01-01

Background Urinary incontinence is an important health problem to the individual sufferer and to health services. Stress and stress predominant mixed urinary incontinence are increasingly managed by surgery due to advances in surgical techniques. Despite the lack of evidence for its clinical utility, most clinicians undertake invasive urodynamic testing (IUT) to confirm a functional diagnosis of urodynamic stress incontinence before offering surgery for this condition. IUT is expensive, embarrassing and uncomfortable for women and carries a small risk. Recent systematic reviews have confirmed the lack of high quality evidence of effectiveness. The aim of this pilot study is to test the feasibility of a future definitive randomised control trial that would address whether IUT alters treatment decisions and treatment outcome in these women and would test its clinical and cost effectiveness. Methods/design This is a mixed methods pragmatic multicentre feasibility pilot study with four components:- (a) A multicentre, external pilot randomised trial comparing basic clinical assessment with non-invasive tests and IUT. The outcome measures are rates of recruitment, randomisation and data completion. Data will be used to estimate sample size necessary for the definitive trial. (b) Qualitative interviews of a purposively sampled sub-set of women eligible for the pilot trial will explore willingness to participate, be randomised and their overall trial experience. (c) A national survey of clinicians to determine their views of IUT in this context, the main outcome being their willingness to randomise patients into the definitive trial. (d) Qualitative interviews of a purposively sampled group of these clinicians will explore whether and how they use IUT to inform their decisions. Discussion The pilot trial will provide evidence of feasibility and acceptability and therefore inform the decision whether to proceed to the definitive trial. Results will inform the design and conduct of the definitive trial and ensure its effectiveness in achieving its research aim. Trial registration number Current Controlled Trials ISRCTN71327395 assigned 7th June 2010. PMID:21733166

Laparoscopic cholecystectomy in acute gallstone pancreatitis in index hospital admission: feasibility and safety

PubMed Central

Sangrasi, Ahmed Khan; Syed, BM; Memon, Amir Iqbal; Laghari, Abdul Aziz; Talpur, K. Altaf Hussain; Qureshi, Jawaid Naeem

2014-01-01

Background and Objective: Acute gallstone pancreatitis is quite common throughout the globe. Conventionally definitive cholecystectomy has been delayed in index hospital admission. Since the last decade timing of cholecystectomy is gradually shifting towards the earlier phase of disease and currently gallstone pancreatitis is being evaluated as a further indication for laparoscopic cholecystectomy. There is also great concern regarding compliance of patients for definitive surgery due to poverty, ignorance and illiteracy in developing countries. The aim of this study was to assess the feasibility and safety of laparoscopic cholecystectomy as a definitive treatment in patients with mild and resolving gall stone pancreatitis. Methods: This was a prospective study from July 2009 to June 2012. Patients were diagnosed by clinical examination, biochemical tests, ultrasonography and contrast enhanced CT. Patients with mild form of the disease (Ranson Score ≤3) and who showed clinical improvement were offered laparoscopic cholecystectomy in index hospital admission. Those who were unfit for surgery were referred for endoscopic sphincterotomy. Common bile duct stones were excluded preoperatively. Results: A total of 38 patients were admitted with acute gallstone pancreatitis in the study period. The mean age of patients was 46.3 years with male to female ratio of 11/27. 22 (57.8%) patients were selected for laparoscopic cholecystectomy and procedure was completed successfully. Ten (26.3%) patients were referred for ERCP and endoscopic sphincterotomy and 11 (28.9%) were managed by conservative treatment and went without any definitive treatment. Mean duration of time from onset of symptoms and laparoscopic cholecystectomy was 7 days (range 4-10). Mean duration of operative time was 45 minutes and hospital stay was 7 days. There was no operative mortality. No major intra-operative or post-operative complication was recorded. two patients (9%) had minor complications. Conclusion: Laparoscopic cholecystectomy can be safely performed in selected cases of mild gallstone pancreatitis in order to prevent further attacks of acute pancreatitis and other consequences of delayed treatment. Furthermore it resolves the problem of noncompliance of patients in third world countries where many patients are lost for definitive treatment. PMID:24948988

Definitions of sleeplessness in children with attention-deficit hyperactivity disorder (ADHD): implications for mothers' mental state, daytime sleepiness and sleep-related cognitions.

PubMed

Montgomery, P; Wiggs, L

2015-01-01

Sleep disturbances are common in children with attention-deficit hyperactivity disorder (ADHD). Sleeplessness is frequently reported although results are inconsistent perhaps because different definitions for it are applied. This study looked at maternal functioning and child objective sleep patterns in relation to different definitions of sleeplessness in children with ADHD. The study included 45 children (aged 3-14 years) with ADHD and their mothers. Sleeplessness was defined according to: (i) yes/no report of whether mothers thought their children had a problem with sleeplessness (Maternal definition MD) and (ii) mothers' responses to a quantitative standardized questionnaire (Quantitative definition QD) designed to detect the frequency and duration of parent-reported problems with settling, night waking and early waking. Objective sleep patterns were also assessed by means of actigraphy. Maternal mental health, daytime sleepiness and cognitions related to child sleep were assessed by questionnaire. Both definitions appeared to tap similar although slightly different constructs. There were no group differences in objective sleep patterns. Maternal mental health was found to be significantly worse in the mothers who considered their child to be sleepless (MD) (P < 0.025), but not in those mothers whose child was found to be sleepless according to the standardized criteria (QD). Maternal sleepiness did not differ between groups. For both categories of sleepless children (MD and QD), the mothers had significantly more doubts about their competency as a parent (P < 0.01 and P < 0.025, respectively) compared to mothers of children without sleeplessness. Two different maternal assessments of child sleeplessness in children with ADHD may assess subtly different constructs, but both may provide useful information about potential problems across the family. © 2014 John Wiley & Sons Ltd.

Implementation of Video Teleconferencing for the Republic of China Navy

DTIC Science & Technology

1990-03-01

INTRODUCTION 1 A. BACKGROUND 1 1. Communications Environment, Needs, and Plans 1 2. Republic of China History and Threat of Invasion 4 B ...TELECONFERENCING 8 1. Definition 8 2. History of Video Teleconferencing 9 B . CATEGORIES OF TELECONFERENCING 11 1. Audio Conferencing 11 2. Audio...RELATED TO TELECONFERENCING 52 A. PNTRODUCTION OF HUMAN FACTORS 52 1. Definition of Human Factors 52 2. History of Human Factors 53 IV B

76 FR 73955 - Approval and Promulgation of Air Quality Implementation Plans; Maine; Regional Haze

Federal Register 2010, 2011, 2012, 2013, 2014

2011-11-29

...: Table of Contents I. What is the background for EPA's proposed action? A. The Regional Haze Problem B... the background for EPA's proposed action? A. The Regional Haze Problem Regional haze is visibility... hundreds of kilometers. Therefore, to effectively address the problem of visibility impairment in Class I...

77 FR 3975 - Approval and Promulgation of Air Quality Implementation Plans; Indiana; Regional Haze

Federal Register 2010, 2011, 2012, 2013, 2014

2012-01-26

.... What is the background for EPA's proposed action? A. The Regional Haze Problem B. Requirements of the... is the background for EPA's proposed action? A. The Regional Haze Problem Regional haze is visibility..., to effectively address the problem of visibility impairment in Class I areas, states need to develop...

Understanding Adults' Strong Problem-Solving Skills Based on PIAAC

ERIC Educational Resources Information Center

Hämäläinen, Raija; De Wever, Bram; Nissinen, Kari; Cincinnato, Sebastiano

2017-01-01

Purpose: Research has shown that the problem-solving skills of adults with a vocational education and training (VET) background in technology-rich environments (TREs) are often inadequate. However, some adults with a VET background do have sound problem-solving skills. The present study aims to provide insight into the socio-demographic,…

Temporal evolution of acute respiratory distress syndrome definitions.

PubMed

Fioretto, José R; Carvalho, Werther B

2013-01-01

to review the evolution of acute respiratory distress syndrome (ARDS) definitions and present the current definition for the syndrome. a literature review and selection of the most relevant articles on ARDS definitions was performed using the MEDLINE®/PubMed® Resource Guide database (last ten years), in addition to including the most important articles (classic articles) that described the disease evolution. the review included the following subjects: introduction; importance of definition; description of the first diagnostic criterion and subsequently used definitions, such as acute lung injury score; definition by the American-European Consensus Conference, and its limitations; description of the definition by Delphi, and its problems; accuracy of the aforementioned definitions; description of most recent definition (the Berlin definition), and its limitations; and practical importance of the new definition. ARDS is a serious disease that remains an ongoing diagnostic and therapeutic challenge. The evolution of definitions used to describe the disease shows that studies are needed to validate the current definition, especially in pediatrics, where the data are very scarce. Copyright © 2013 Sociedade Brasileira de Pediatria. Published by Elsevier Editora Ltda. All rights reserved.

Exploratory Workshop on the Social Impacts of Robotics. Summary and Issues. A Background Paper.

ERIC Educational Resources Information Center

Congress of the U.S., Washington, DC. Office of Technology Assessment.

This report contains a summary of the results of an exploratory workshop to discuss the future of industrial robotics and its likely impact on public policy. Background information is presented, and workshop goals are delineated. Under the general area of robot technology, these topics are covered: the roots of robotics technology, a definition of…

The Effects of Radiation on Imagery Sensors in Space

NASA Technical Reports Server (NTRS)

Mathis, Dylan

2007-01-01

Recent experience using high definition video on the International Space Station reveals camera pixel degradation due to particle radiation to be a much more significant problem with high definition cameras than with standard definition video. Although it may at first appear that increased pixel density on the imager is the logical explanation for this, the ISS implementations of high definition suggest a more complex causal and mediating factor mix. The degree of damage seems to vary from one type of camera to another, and this variation prompts a reconsideration of the possible factors in pixel loss, such as imager size, number of pixels, pixel aperture ratio, imager type (CCD or CMOS), method of error correction/concealment, and the method of compression used for recording or transmission. The problem of imager pixel loss due to particle radiation is not limited to out-of-atmosphere applications. Since particle radiation increases with altitude, it is not surprising to find anecdotal evidence that video cameras subject to many hours of airline travel show an increased incidence of pixel loss. This is even evident in some standard definition video applications, and pixel loss due to particle radiation only stands to become a more salient issue considering the continued diffusion of high definition video cameras in the marketplace.

Dyscalculia and Other Learning Problems in Arithmetic: A Historical Perspective.

ERIC Educational Resources Information Center

Sharma, Mahesh C.

1986-01-01

Evidence on learning problems due to dyscalculia is surveyed. Definitions, factors responsible for dyscalculia, split-brain research and hemispheric roles, mathematics learning problems and personality, materials for instruction, and levels of knowing mathematics are among the topics discussed with an extensive list of references. (MNS)

45 CFR 1611.2 - Definitions.

Code of Federal Regulations, 2010 CFR

2010-10-01

... relevant to the client's legal problem(s) and counseling the client on the relevant law and/or suggested... supported with LSC funds from a recipient. The term does not include a group, corporation or association. (d...

Factors influencing the spatial extent of mobile source air pollution impacts: a meta-analysis

PubMed Central

Zhou, Ying; Levy, Jonathan I

2007-01-01

Background There has been growing interest among exposure assessors, epidemiologists, and policymakers in the concept of "hot spots", or more broadly, the "spatial extent" of impacts from traffic-related air pollutants. This review attempts to quantitatively synthesize findings about the spatial extent under various circumstances. Methods We include both the peer-reviewed literature and government reports, and focus on four significant air pollutants: carbon monoxide, benzene, nitrogen oxides, and particulate matter (including both ultrafine particle counts and fine particle mass). From the identified studies, we extracted information about significant factors that would be hypothesized to influence the spatial extent within the study, such as the study type (e.g., monitoring, air dispersion modeling, GIS-based epidemiological studies), focus on concentrations or health risks, pollutant under study, background concentration, emission rate, and meteorological factors, as well as the study's implicit or explicit definition of spatial extent. We supplement this meta-analysis with results from some illustrative atmospheric dispersion modeling. Results We found that pollutant characteristics and background concentrations best explained variability in previously published spatial extent estimates, with a modifying influence of local meteorology, once some extreme values based on health risk estimates were removed from the analysis. As hypothesized, inert pollutants with high background concentrations had the largest spatial extent (often demonstrating no significant gradient), and pollutants formed in near-source chemical reactions (e.g., nitrogen dioxide) had a larger spatial extent than pollutants depleted in near-source chemical reactions or removed through coagulation processes (e.g., nitrogen oxide and ultrafine particles). Our illustrative dispersion model illustrated the complex interplay of spatial extent definitions, emission rates, background concentrations, and meteorological conditions on spatial extent estimates even for non-reactive pollutants. Our findings indicate that, provided that a health risk threshold is not imposed, the spatial extent of impact for mobile sources reviewed in this study is on the order of 100–400 m for elemental carbon or particulate matter mass concentration (excluding background concentration), 200–500 m for nitrogen dioxide and 100–300 m for ultrafine particle counts. Conclusion First, to allow for meaningful comparisons across studies, it is important to state the definition of spatial extent explicitly, including the comparison method, threshold values, and whether background concentration is included. Second, the observation that the spatial extent is generally within a few hundred meters for highway or city roads demonstrates the need for high resolution modeling near the source. Finally, our findings emphasize that policymakers should be able to develop reasonable estimates of the "zone of influence" of mobile sources, provided that they can clarify the pollutant of concern, the general site characteristics, and the underlying definition of spatial extent that they wish to utilize. PMID:17519039

Identification of source velocities on 3D structures in non-anechoic environments: Theoretical background and experimental validation of the inverse patch transfer functions method

NASA Astrophysics Data System (ADS)

Aucejo, M.; Totaro, N.; Guyader, J.-L.

2010-08-01

In noise control, identification of the source velocity field remains a major problem open to investigation. Consequently, methods such as nearfield acoustical holography (NAH), principal source projection, the inverse frequency response function and hybrid NAH have been developed. However, these methods require free field conditions that are often difficult to achieve in practice. This article presents an alternative method known as inverse patch transfer functions, designed to identify source velocities and developed in the framework of the European SILENCE project. This method is based on the definition of a virtual cavity, the double measurement of the pressure and particle velocity fields on the aperture surfaces of this volume, divided into elementary areas called patches and the inversion of impedances matrices, numerically computed from a modal basis obtained by FEM. Theoretically, the method is applicable to sources with complex 3D geometries and measurements can be carried out in a non-anechoic environment even in the presence of other stationary sources outside the virtual cavity. In the present paper, the theoretical background of the iPTF method is described and the results (numerical and experimental) for a source with simple geometry (two baffled pistons driven in antiphase) are presented and discussed.

The management of breakthrough cancer pain--educational needs a European nursing survey.

PubMed

Wengström, Y; Rundström, C; Geerling, J; Pappa, T; Weisse, I; Williams, S C; Zavratnik, B; Rustøen, T

2014-01-01

Poorly managed cancer pain is well known to profoundly impact the patient's daily life and interfere with quality of life. Nurses who cared for patients with cancer from 12 European countries participated in a survey of breakthrough cancer pain practice. The purpose was to investigate how nurses assess breakthrough cancer pain, use of standardised tools, confidence in supporting patients and awareness of medications. Responses from 1241 participants showed country variations. The majority of the sample was female, Germany had the highest proportion of male nurses (21.0%), followed by Greece (15.8%). A significantly larger proportion of nurses with longer experience and more education (78.8%) used a comprehensive definition of breakthrough cancer pain. Significant variations in training were found; 71% of Finnish nurses had received training compared with 6% of Greek nurses. Training and using a standardised assessment tool was associated with a significant increase in the nurses' perceived ability to distinguish between breakthrough and background pain. Nurses in countries with the highest proportion of training were most confident in supporting patients. In conclusion, there still exists problems with effective management of patients' breakthrough cancer pain, continuing inability to define the difference between background and breakthrough cancer pain leads to poor treatment. © 2013 John Wiley & Sons Ltd.

Topological charge and the spectrum of exactly massless fermions on the lattice

NASA Astrophysics Data System (ADS)

Chiu, Ting-Wai

1998-10-01

The square root of the positive definite Hermitian operator D†wDw in Neuberger's proposal of exactly massless quarks on the lattice is implemented by the recursion formula Yk+1=12(Yk+D†wDwY-1k) with Y0=1, where Y2k converges to D†wDw quadratically. The spectrum of the lattice Dirac operator for single massless fermion in two dimensional background U(1) gauge fields is investigated. For smooth background gauge fields with nonzero topological charge, the exact zero modes with definite chirality are reproduced to a very high precision on a finite lattice and the index theorem is satisfied exactly. The fermionic determinants are also computed and they are in good agreement with the continuum exact solution.

Common quandaries and their practical solutions in Bayesian network modeling

Treesearch

Bruce G. Marcot

2017-01-01

Use and popularity of Bayesian network (BN) modeling has greatly expanded in recent years, but many common problems remain. Here, I summarize key problems in BN model construction and interpretation,along with suggested practical solutions. Problems in BN model construction include parameterizing probability values, variable definition, complex network structures,...

Quality Control in Title I Evaluation: Problems and Approaches.

ERIC Educational Resources Information Center

Hansen, Joe B.

Educational program evalaution is subject to many difficulties. Problems with evaluation include such conceptual problems as: (1) understanding of decisions to be made; (2) adequate definition; (3) consensus on values and criteria; (4) coordination among administrative levels; and (5) use of an appropriate evaluation model. Technical problems…

The Process of Solving Complex Problems

ERIC Educational Resources Information Center

Fischer, Andreas; Greiff, Samuel; Funke, Joachim

2012-01-01

This article is about Complex Problem Solving (CPS), its history in a variety of research domains (e.g., human problem solving, expertise, decision making, and intelligence), a formal definition and a process theory of CPS applicable to the interdisciplinary field. CPS is portrayed as (a) knowledge acquisition and (b) knowledge application…

Binge Drinking in Young Adults: Data, Definitions and Determinants

ERIC Educational Resources Information Center

Courtney, Kelly E.; Polich, John

2009-01-01

Binge drinking is an increasingly important topic in alcohol research, but the field lacks empirical cohesion and definitional precision. The present review summarizes findings and viewpoints from the scientific binge-drinking literature. Epidemiological studies quantify the seriousness of alcohol-related problems arising from binge drinking, with…

Locating underwater objects. [technology transfer

NASA Technical Reports Server (NTRS)

Grice, C. F.

1974-01-01

Underwater search operations are considered to be engineering and operational problems. A process for proper definition of the problem and selection of instrumentation and operational procedures is described. An outline of underwater search instrumentation and techniques is given.

Standardization of Clinical Assessment and Sample Collection Across All PERCH Study Sites

PubMed Central

Prosperi, Christine; Baggett, Henry C.; Brooks, W. Abdullah; Deloria Knoll, Maria; Hammitt, Laura L.; Howie, Stephen R. C.; Kotloff, Karen L.; Levine, Orin S.; Madhi, Shabir A.; Murdoch, David R.; O’Brien, Katherine L.; Thea, Donald M.; Awori, Juliet O.; Bunthi, Charatdao; DeLuca, Andrea N.; Driscoll, Amanda J.; Ebruke, Bernard E.; Goswami, Doli; Hidgon, Melissa M.; Karron, Ruth A.; Kazungu, Sidi; Kourouma, Nana; Mackenzie, Grant; Moore, David P.; Mudau, Azwifari; Mwale, Magdalene; Nahar, Kamrun; Park, Daniel E.; Piralam, Barameht; Seidenberg, Phil; Sylla, Mamadou; Feikin, Daniel R.; Scott, J. Anthony G.; O’Brien, Katherine L.; Levine, Orin S.; Knoll, Maria Deloria; Feikin, Daniel R.; DeLuca, Andrea N.; Driscoll, Amanda J.; Fancourt, Nicholas; Fu, Wei; Hammitt, Laura L.; Higdon, Melissa M.; Kagucia, E. Wangeci; Karron, Ruth A.; Li, Mengying; Park, Daniel E.; Prosperi, Christine; Wu, Zhenke; Zeger, Scott L.; Watson, Nora L.; Crawley, Jane; Murdoch, David R.; Brooks, W. Abdullah; Endtz, Hubert P.; Zaman, Khalequ; Goswami, Doli; Hossain, Lokman; Jahan, Yasmin; Ashraf, Hasan; Howie, Stephen R. C.; Ebruke, Bernard E.; Antonio, Martin; McLellan, Jessica; Machuka, Eunice; Shamsul, Arifin; Zaman, Syed M.A.; Mackenzie, Grant; Scott, J. Anthony G.; Awori, Juliet O.; Morpeth, Susan C.; Kamau, Alice; Kazungu, Sidi; Kotloff, Karen L.; Tapia, Milagritos D.; Sow, Samba O.; Sylla, Mamadou; Tamboura, Boubou; Onwuchekwa, Uma; Kourouma, Nana; Toure, Aliou; Madhi, Shabir A.; Moore, David P.; Adrian, Peter V.; Baillie, Vicky L.; Kuwanda, Locadiah; Mudau, Azwifarwi; Groome, Michelle J.; Baggett, Henry C.; Thamthitiwat, Somsak; Maloney, Susan A.; Bunthi, Charatdao; Rhodes, Julia; Sawatwong, Pongpun; Akarasewi, Pasakorn; Thea, Donald M.; Mwananyanda, Lawrence; Chipeta, James; Seidenberg, Phil; Mwansa, James; wa Somwe, Somwe; Kwenda, Geoffrey

2017-01-01

Abstract Background. Variable adherence to standardized case definitions, clinical procedures, specimen collection techniques, and laboratory methods has complicated the interpretation of previous multicenter pneumonia etiology studies. To circumvent these problems, a program of clinical standardization was embedded in the Pneumonia Etiology Research for Child Health (PERCH) study. Methods. Between March 2011 and August 2013, standardized training on the PERCH case definition, clinical procedures, and collection of laboratory specimens was delivered to 331 clinical staff at 9 study sites in 7 countries (The Gambia, Kenya, Mali, South Africa, Zambia, Thailand, and Bangladesh), through 32 on-site courses and a training website. Staff competency was assessed throughout 24 months of enrollment with multiple-choice question (MCQ) examinations, a video quiz, and checklist evaluations of practical skills. Results. MCQ evaluation was confined to 158 clinical staff members who enrolled PERCH cases and controls, with scores obtained for >86% of eligible staff at each time-point. Median scores after baseline training were ≥80%, and improved by 10 percentage points with refresher training, with no significant intersite differences. Percentage agreement with the clinical trainer on the presence or absence of clinical signs on video clips was high (≥89%), with interobserver concordance being substantial to high (AC1 statistic, 0.62–0.82) for 5 of 6 signs assessed. Staff attained median scores of >90% in checklist evaluations of practical skills. Conclusions. Satisfactory clinical standardization was achieved within and across all PERCH sites, providing reassurance that any etiological or clinical differences observed across the study sites are true differences, and not attributable to differences in application of the clinical case definition, interpretation of clinical signs, or in techniques used for clinical measurements or specimen collection. PMID:28575355

Adjustment Disorder: epidemiology, diagnosis and treatment

PubMed Central

2009-01-01

Background Adjustment Disorder is a condition strongly tied to acute and chronic stress. Despite clinical suggestion of a large prevalence in the general population and the high frequency of its diagnosis in the clinical settings, there has been relatively little research reported and, consequently, very few hints about its treatments. Methods the authors gathered old and current information on the epidemiology, clinical features, comorbidity, treatment and outcome of adjustment disorder by a systematic review of essays published on PUBMED. Results After a first glance at its historical definition and its definition in the DSM and ICD systems, the problem of distinguishing AD from other mood and anxiety disorders, the difficulty in the definition of stress and the implied concept of 'vulnerability' are considered. Comorbidity of AD with other conditions, and outcome of AD are then analyzed. This review also highlights recent data about trends in the use of antidepressant drugs, evidence on their efficacy and the use of psychotherapies. Conclusion AD is a very common diagnosis in clinical practice, but we still lack data about its rightful clinical entity. This may be caused by a difficulty in facing, with a purely descriptive methods, a "pathogenic label", based on a stressful event, for which a subjective impact has to be considered. We lack efficacy surveys concerning treatment. The use of psychotropic drugs such as antidepressants, in AD with anxious or depressed mood is not properly supported and should be avoided, while the usefulness of psychotherapies is more solidly supported by clinical evidence. To better determine the correct course of therapy, randomized-controlled trials, even for the combined use of drugs and psychotherapies, are needed vitally, especially for the resistant forms of AD. PMID:19558652

Life sciences payload definition and integration study, task C and D. Volume 2: Payload definition, integration, and planning studies

NASA Technical Reports Server (NTRS)

1973-01-01

The Life Sciences Payload Definition and Integration Study was composed of four major tasks. Tasks A and B, the laboratory definition phase, were the subject of prior NASA study. The laboratory definition phase included the establishment of research functions, equipment definitions, and conceptual baseline laboratory designs. These baseline laboratories were designated as Maxi-Nom, Mini-30, and Mini-7. The outputs of Tasks A and B were used by the NASA Life Sciences Payload Integration Team to establish guidelines for Tasks C and D, the laboratory integration phase of the study. A brief review of Tasks A and B is presented provide background continuity. The tasks C and D effort is the subject of this report. The Task C effort stressed the integration of the NASA selected laboratory designs with the shuttle sortie module. The Task D effort updated and developed costs that could be used by NASA for preliminary program planning.

Advanced Thermal Emission Imaging Systems Definition and Development

NASA Technical Reports Server (NTRS)

Blasius, Karl; Nava, David (Technical Monitor)

2002-01-01

Santa Barbara Remote Sensing (SBRS), Raytheon Company, is pleased to submit this quarterly progress report of the work performed in the third quarter of Year 2 of the Advanced THEMIS Project, July through September 2002. We review here progress in the proposed tasks. During July through September 2002 progress was made in two major tasks, Spectral Response Characterization and Flight Instrument Definition. Because of staffing problems and technical problems earlier in the program we have refocused the remaining time and budget on the key technical tasks. Current technical problems with a central piece of test equipment has lead us to request a 1 quarter extension to the period of performance. This request is being made through a separate letter independent of this report.

The making of a public health problem: multi-drug resistant tuberculosis in India.

PubMed

Engel, Nora C

2013-07-01

This paper examines how actors construct the public problem of multi-drug resistant tuberculosis (MDR-TB) in India. MDR-TB has been framed by the World Health Organization as a pressing, global public health problem. The responses to MDR-TB are complicated as treatment takes longer and is more expensive than routine TB treatment. This is particularly problematic in countries, such as India, with high patient loads, a large and unregulated private sector, weak health systems and potentially high numbers of MDR-TB cases. This paper analyses how actors struggle for control over ownership, causal theories and political responsibility of the public problem of MDR-TB in India. It combines Gusfield's theory on the construction of public problems with insights from literature on the social construction of diseases and on medical social control. It highlights that there are flexible definitions of public problems, which are negotiated among actor groups and which shift over time. The Indian government has shifted its policy in recent years and acknowledged that MDR-TB needs to be dealt with within the TB programme. The study results reveal how the policy shift happened, why debates on the construction of MDR-TB as a public problem in India continue, and why actors with alternative theories than the government do not succeed in their lobbying efforts. Two main arguments are put forward. First, the construction of the public problem of MDR-TB in India is a social and political process. The need for representative data, international influence and politics define what is controllable. Second, the government seems to be anxious to control the definition of India's MDR-TB problem. This impedes an open, critical and transparent discussion on the definition of the public problem of MDR-TB, which is important in responding flexibly to emerging public health challenges.

Toward A Literate Society; The Report of the Committee on Reading.

ERIC Educational Resources Information Center

Carroll, John B., Ed.; Cahall, Jeanne S., Ed.

The problems and possibilities involved in developing a national Right-to-Read program are discussed in this book, and it is argued that there is no one reading problem but rather a series of reading problems calling for a wide variety of responses. The report begins with a definition and a diagnosis of the national reading problems, a national…

Development of a clinical definition for acute respiratory distress syndrome using the Delphi technique.

PubMed

Ferguson, Niall D; Davis, Aileen M; Slutsky, Arthur S; Stewart, Thomas E

2005-06-01

The objective of this study is to describe the implementation of formal consensus techniques in the development of a clinical definition for acute respiratory distress syndrome. A Delphi consensus process was conducted using e-mail. Sixteen panelists who were both researchers and opinion leaders were systematically recruited. The Delphi technique was performed over 4 rounds on the background of an explicit definition framework. Item generation was performed in round 1, item reduction in rounds 2 and 3, and definition evaluation in round 4. Explicit consensus thresholds were used throughout. Of the 16 panelists, 11 actually participated in developing a definition that met a priori consensus rules on the third iteration. New incorporations in the Delphi definition include the use of a standardized oxygenation assessment and the documentation of either a predisposing factor or decreased thoracic compliance. The panelists rated the Delphi definition as acceptable to highly acceptable (median score, 6; range, 5-7 on a 7-point Likert scale). We conclude that it is feasible to consider using formal consensus in the development of future definitions of acute respiratory distress syndrome. Testing of sensibility, reliability, and validity are needed for this preliminary definition; these test results should be incorporated into future iterations of this definition.

Assessment of nutritional status in the elderly: a proposed function-driven model

PubMed Central

Engelheart, Stina; Brummer, Robert

2018-01-01

Background There is no accepted or standardized definition of ‘malnutrition’. Hence, there is also no definition of what constitutes an adequate nutritional status. In elderly people, assessment of nutritional status is complex and is complicated by multi-morbidity and disabilities combined with nutrition-related problems, such as dysphagia, decreased appetite, fatigue, and muscle weakness. Objective We propose a nutritional status model that presents nutritional status from a comprehensive functional perspective. This model visualizes the complexity of the nutritional status in elderly people. Design and results The presented model could be interpreted as the nutritional status is conditional to a person’s optimal function or situation. Another way of looking at it might be that a person’s nutritional status affects his or her optimal situation. The proposed model includes four domains: (1) physical function and capacity; (2) health and somatic disorders; (3) food and nutrition; and (4) cognitive, affective, and sensory function. Each domain has a major impact on nutritional status, which in turn has a major impact on the outcome of each domain. Conclusions Nutritional status is a multifaceted concept and there exist several knowledge gaps in the diagnosis, prevention, and optimization of treatment of inadequate nutritional status in elderly people. The nutritional status model may be useful in nutritional assessment research, as well as in the clinical setting. PMID:29720931

Advanced health biotechnologies in Thailand: redefining policy directions

PubMed Central

2013-01-01

Background Thailand faces a significant burden in terms of treating and managing degenerative and chronic diseases. Moreover, incidences of rare diseases are rising. Many of these—such as diabetes, cancer, and inherited inborn metabolic diseases—have no definite treatments or cure. Meanwhile, advanced health biotechnology has been found, in principle, to be an effective solution for these health problems. Methods Qualitative approaches were employed to analyse the current situation and examine existing public policies related to advanced health biotechnologies in Thailand. The results of this analysis were then used to formulate policy recommendations. Results Our research revealed that the system in Thailand in relation to advanced health biotechnologies is fragmented, with multiple unaddressed gaps, underfunding of research and development (R&D), and a lack of incentives for the private sector. In addition, there are no clear definitions of advanced health biotechnologies, and coverage pathways are absent. Meanwhile, false advertising and misinformation are prevalent, with no responsible bodies to actively and effectively provide appropriate information and education (I&E). The establishment of a specialised institution to fill the gaps in this area is warranted. Conclusion The development and implementation of a comprehensive national strategic plan related to advanced health biotechnologies, greater investment in R&D and I&E for all stakeholders, collaboration among agencies, harmonisation of reimbursement across public health schemes, and provision of targeted I&E are specifically recommended. PMID:23281771

Teacher Professional Development as a Scientific Problem in Comparative Pedagogics

ERIC Educational Resources Information Center

Avshenyuk, Natalia; Kostina, Lyudmyla

2014-01-01

Cogent argument for better understanding of the take-up of teacher professional development through understanding the definition itself has been presented. The main constituents of the definition with reference to different sources of information in psychology, philosophy and pedagogics have been analyzed. To make the research more logical, the…

International Cooperation for a Single World Production Standard of High Definition Television.

ERIC Educational Resources Information Center

Hongcharu, Boonchai

Broadcasters, television engineers and the production industry have encountered many problems with diverse television standards since the introduction of color television. With the advent of high definition television (HDTV), the chance to have a common production standard for international exchange of programs and technical information has…

Engaging FCS Partners in an International Service Learning Initiative

ERIC Educational Resources Information Center

Keino, Leah C.; Torrie, Margaret C.; Hausafus, Cheryl O.; Trost, Betty C.

2010-01-01

Several definitions of service learning exist. For this initiative, the authors used Torres and Sinton's (2000) definition that students are learning about social issues and applying new knowledge to real problems in their communities. This project entailed a partnership of committed citizens of different groups (middle, secondary, and university…

Visually Handicapped People and the Law.

ERIC Educational Resources Information Center

Bishop, V. E.

1987-01-01

The paper explores the definitional problems of visual handicaps, especially in terms of the legal definition of blindness. A brief history of relevant laws and a discussion of current case law precede a section providing suggestions for strengthening the legal position of the visually handicapped in future litigation. (Author/DB)

Relevance: The Search for a Definition.

ERIC Educational Resources Information Center

Schamber, Linda; Eisenberg, Michael

Arguing that relevance judgments are fundamental to the design and evaluation of all information retrieval systems, and that a consensus on the definition of the central concept of relevance has not been reached, this paper begins by critically reviewing four approaches to the problem of defining relevance: (1) the system-oriented approach…

Storytelling as an Instructional Method: Definitions and Research Questions

ERIC Educational Resources Information Center

Andrews, Dee H.; Hull, Thomas D.; Donahue, Jennifer A.

2009-01-01

This paper discusses the theoretical and empirical foundations of the use of storytelling in instruction. The definition of "story" is given and four instructional methods are identified related to storytelling: case-based, narrative-based, scenario-based, and problem-based instruction. The article provides descriptions of the four…

Extending Social Cognitive Theory to Counselor Training: Problems and Prospects.

ERIC Educational Resources Information Center

Lent, Robert W.; Hackett, Gail; Brown, Steven D.

1998-01-01

Reviews the articles on counselor and supervisory self-efficacy in this issue of JCP (Larson's Social Cognitive Model of Counselor Training is the theme). Provides advice about cafeteria-style theorizing, and deals with definitional and measurement issues (particularly the definition of counselor self-efficacy). Discusses relationship issues and…

Defining Conceptual Understanding for Teaching in International Business

ERIC Educational Resources Information Center

Ashley, Sue; Schaap, Harmen; de Bruijn, Elly

2016-01-01

The aim of this exploratory study is to develop a definition of conceptual understanding for teaching in international business. In international business, professionals face complex problems like what to produce, where to manufacture, which markets to target, and when to expand abroad. A clear definition of conceptual understanding needed to…

Astronomical Catalogues - Definition Elements and Afterlife

NASA Astrophysics Data System (ADS)

Jaschek, C.

1984-09-01

Based on a look at the different meanings of the term catalogue (or catalog), a definition is proposed. In an analysis of the main elements, a number of requirements that catalogues should satisfy are pointed out. A section is devoted to problems connected with computer-readable versions of printed catalogues.

Assessing Algebraic Solving Ability: A Theoretical Framework

ERIC Educational Resources Information Center

Lian, Lim Hooi; Yew, Wun Thiam

2012-01-01

Algebraic solving ability had been discussed by many educators and researchers. There exists no definite definition for algebraic solving ability as it can be viewed from different perspectives. In this paper, the nature of algebraic solving ability in terms of algebraic processes that demonstrate the ability in solving algebraic problem is…

37 CFR 380.21 - Definitions.

Code of Federal Regulations, 2011 CFR

2011-07-01

... operations of which are staffed substantially by students enrolled at, a domestically accredited primary or...; and (ii) Other than ambient music that is background at a public event, does not contain an entire...

[Review of the gender research in cross-cultural psychology since 1990: conceptual definitions and methodology].

PubMed

Suzuki, Atsuko

2004-06-01

A review of the cross-cultural research on gender in psychology since 1990 reveals (1) conceptual confusion of the definitions of sex, gender, man, and woman; (2) diversification, refinement, reification, and a problem-solving orientation in the research topics; and (3) the possibility of the elucidation of the psychological sex-difference mechanism in relation to the biological sex differences. A comparison of 1990 and 2000 cross-cultural psychological articles published in "Sex Roles" found that overall, the research is Western-centered and some methodological problems remain to be solved concerning the measures and the sampling. These findings lead to the following suggestions for cross-cultural research on gender to resolve the problems and contribute to the development of psychology in general: (1) use of an operational definition for conceptual equivalence; (2) conducting more etic-approach research; (3) avoiding ethnocentric or androcentric research attitudes; (4) use of a theoretical framework; (5) strict examination of methodologies; and (6) examination of the specific context of participants in terms of cultural diversity, dynamics of husband-wife relationships, and relationships with husbands and fathers.

Symmetric tridiagonal structure preserving finite element model updating problem for the quadratic model

NASA Astrophysics Data System (ADS)

Rakshit, Suman; Khare, Swanand R.; Datta, Biswa Nath

2018-07-01

One of the most important yet difficult aspect of the Finite Element Model Updating Problem is to preserve the finite element inherited structures in the updated model. Finite element matrices are in general symmetric, positive definite (or semi-definite) and banded (tridiagonal, diagonal, penta-diagonal, etc.). Though a large number of papers have been published in recent years on various aspects of solutions of this problem, papers dealing with structure preservation almost do not exist. A novel optimization based approach that preserves the symmetric tridiagonal structures of the stiffness and damping matrices is proposed in this paper. An analytical expression for the global minimum solution of the associated optimization problem along with the results of numerical experiments obtained by both the analytical expressions and by an appropriate numerical optimization algorithm are presented. The results of numerical experiments support the validity of the proposed method.

The use of interlocking prostheses for both temporary and definitive management of infected periprosthetic femoral fractures.

PubMed

Konan, Sujith; Rayan, Faizal; Manketelow, Andrew R J; Haddad, Fares S

2011-12-01

Infected periprosthetic fractures around total hip arthroplasties are an extremely challenging problem. We describe our experience of managing infected periprosthetic femoral fractures using interlocking long-stem femoral prostheses either as temporary functional spacers or as definitive implants. The Cannulock (Orthodesign, Christchurch, United Kingdom) uncoated stem was used in 12 cases, and the Kent hip prosthesis (Biomet Merck, Bridgend, United Kingdom), in 5 cases. Satisfactory outcome was noted in all cases, and in 11 cases, revision to a definitive stem has been undertaken after successful control of infection and fracture union. The use of interlocking stems offers a relatively appealing solution for a complex problem and avoids the complications that would be associated with resection of the entire femur or the use of large quantities of bone cement. Copyright © 2011 Elsevier Inc. All rights reserved.

A data management system for engineering and scientific computing

NASA Technical Reports Server (NTRS)

Elliot, L.; Kunii, H. S.; Browne, J. C.

1978-01-01

Data elements and relationship definition capabilities for this data management system are explicitly tailored to the needs of engineering and scientific computing. System design was based upon studies of data management problems currently being handled through explicit programming. The system-defined data element types include real scalar numbers, vectors, arrays and special classes of arrays such as sparse arrays and triangular arrays. The data model is hierarchical (tree structured). Multiple views of data are provided at two levels. Subschemas provide multiple structural views of the total data base and multiple mappings for individual record types are supported through the use of a REDEFINES capability. The data definition language and the data manipulation language are designed as extensions to FORTRAN. Examples of the coding of real problems taken from existing practice in the data definition language and the data manipulation language are given.

A Cognitive Information Processing Approach to Employment Problem Solving and Decision Making.

ERIC Educational Resources Information Center

Sampson, James P., Jr.; Lenz, Janet G.; Reardon, Robert C.; Peterson, Gary W.

1999-01-01

Applies a cognitive information processing approach to the specific process of employment problem solving and decision making. Definitions and accompanying employment examples are followed by an exploration of the nature of employment problems. Examples of positive and negative cognitions that have an impact on the effectiveness of employment…

The Challenge of Problem-Based Learning. 2nd Edition.

ERIC Educational Resources Information Center

Boud, David, Ed.; Feletti, Grahame I., Ed.

Problem-based learning is an approach to structuring the curriculum which involves confronting students with problems from practice which provide a stimulus for learning. However, there are many possible forms that a curriculum and process for teaching and learning might take and still be compatible with this definition. This book explores these…

Defining the Problem of Practice Dissertation: Where's the Practice, What's the Problem?

ERIC Educational Resources Information Center

Belzer, Alisa; Ryan, Sharon

2013-01-01

This article describes the evolution of the conceptualization of the "problem of practice" dissertation in the new EdD Program at the Graduate School of Education at Rutgers, the State University of New Jersey. Our definition and conceptualization of the professional practice dissertation is grounded in a review of relevant literature…

Definitions of cardiovascular insufficiency and relation to outcomes in critically ill newborn infants

PubMed Central

Fernandez, Erika; Watterberg, Kristi L.; Faix, Roger G.; Yoder, Bradley A.; Walsh, Michele C.; Lacy, Conra Backstrom; Osborne, Karen A.; Das, Abhik; Kendrick, Douglas E.; Stoll, Barbara J.; Poindexter, Brenda B.; Laptook, Abbot R.; Kennedy, Kathleen A.; Schibler, Kurt; Bell, Edward F.; Van Meurs, Krisa P.; Frantz, Ivan D.; Goldberg, Ronald N.; Shankaran, Seetha; Carlo, Waldemar A.; Ehrenkranz, Richard A.; Sanchez, Pablo J.; Higgins, Rosemary D.

2015-01-01

Background We previously reported on the overall incidence, management and outcomes in infants with cardiovascular insufficiency (CVI). However, there are limited data on the relationship of the specific different definitions of CVI to short term outcomes in term and late preterm newborn infants. Objective To evaluate how 4 definitions of CVI relate to short term outcomes and death. Study Design The previously reported study was a multicenter, prospective cohort study of 647 infants ≥ 34 weeks gestation admitted to a Neonatal Research Network (NRN) newborn intensive care unit (NICU) and mechanically ventilated (MV) during their first 72 hours. The relationship of five short term outcomes at discharge and 4 different definitions of CVI were further analyzed. Results All 4 definitions were associated with greater number of days on MV & days on O2. The definition using a threshold blood pressure (BP) measurement alone was not associated with days to full feeding, days in the NICU or death. The definition based on treatment of CVI was associated with all outcomes including death. Conclusions The definition using a threshold BP alone was not consistently associated with adverse short term outcomes. Using only a threshold BP to determine therapy may not improve outcomes. PMID:25825962

Legal regime of human activities in outer space law

NASA Technical Reports Server (NTRS)

Golda, Carlo

1994-01-01

Current developments in space activities increasingly involve the presence of humans on board spacecraft and, in the near future, on the Moon, on Mars, on board Space Stations, etc. With respect to these challenges, the political and legal issues connected to the status of astronauts are largely unclear and require a new doctrinal attention. In the same way, many legal and political questions remain open in the structure of future space crews: the need for international standards in the definition and training of astronauts, etc.; but, first of all, an international uniform legal definition of astronauts. Moreover, the legal structure for human life and operations in outer space can be a new and relevant paradigm for the definition of similar rules in all the situations and environments in which humans are involved in extreme frontiers. The present article starts from an overview on the existing legal and political definitions of 'astronauts', moving to the search of a more useful definition. This is followed by an analysis of the concrete problems created by human space activities, and the legal and political responses to them (the need for a code of conduct; the structure of the crew and the existing rules in the US and ex-USSR; the new legal theories on the argument; the definition and structure of a code of conduct; the next legal problems in fields such as privacy law, communications law, business law, criminal law, etc.).

34 CFR 648.9 - What definitions apply?

Code of Federal Regulations, 2010 CFR

2010-07-01

... fellowships for more than a single academic department in areas of national need designated as priorities by... backgrounds mean women and minorities who traditionally are underrepresented in areas of national need as...

Geostatistics as a tool to improve the natural background level definition: An application in groundwater.

PubMed

Dalla Libera, Nico; Fabbri, Paolo; Mason, Leonardo; Piccinini, Leonardo; Pola, Marco

2017-11-15

The Natural Background Level (NBL), suggested by UE BRIDGE project, is suited for spatially distributed datasets providing a regional value that could be higher than the Threshold Value (TV) set by every country. In hydro-geochemically dis-homogeneous areas, the use of a unique regional NBL, higher than TV, could arise problems to distinguish between natural occurrences and anthropogenic contaminant sources. Hence, the goal of this study is to improve the NBL definition employing a geostatistical approach, which reconstructs the contaminant spatial structure accounting geochemical and hydrogeological relationships. This integrated mapping is fundamental to evaluate the contaminant's distribution impact on the NBL, giving indications to improve it. We decided to test this method on the Drainage Basin of Venice Lagoon (DBVL, NE Italy), where the existing NBL is seven times higher than the TV. This area is notoriously affected by naturally occurring arsenic contamination. An available geochemical dataset collected by 50 piezometers was used to reconstruct the spatial distribution of arsenic in the densely populated area of the DBVL. A cokriging approach was applied exploiting the geochemical relationships among As, Fe and NH4+. The obtained spatial predictions of arsenic concentrations were divided into three different zones: i) areas with an As concentration lower than the TV, ii) areas with an As concentration between the TV and the median of the values higher than the TV, and iii) areas with an As concentration higher than the median. Following the BRIDGE suggestions, where enough samples were available, the 90th percentile for each zone was calculated to obtain a local NBL (LNBL). Differently from the original NBL, this local value gives more detailed water quality information accounting the hydrogeological and geochemical setting, and contaminant spatial variation. Hence, the LNBL could give more indications about the distinction between natural occurrence and anthropogenic contamination. Copyright © 2017 Elsevier B.V. All rights reserved.

Transferring technology to the public sector.

NASA Technical Reports Server (NTRS)

Alper, M. E.

1972-01-01

Approximately four years ago the Jet Propulsion Laboratory, under NASA sponsorship, began to devote some of its resources to examining ways to transfer space technology to the civil sector. As experience accumulated under this program, certain principles basic to success in technology transfer became apparent. An adequate definition of each problem must be developed before any substantial effort is expended on a solution. In most instances, a source of funds other than the potential user is required to support the problem definition phase of the work. Sensitivity to the user's concerns and effective interpersonal communications between the user and technical personnel are essential to success.

Space Shuttle Plume and Plume Impingement Study

NASA Technical Reports Server (NTRS)

Tevepaugh, J. A.; Penny, M. M.

1977-01-01

The extent of the influence of the propulsion system exhaust plumes on the vehicle performance and control characteristics is a complex function of vehicle geometry, propulsion system geometry, engine operating conditions and vehicle flight trajectory were investigated. Analytical support of the plume technology test program was directed at the two latter problem areas: (1) definition of the full-scale exhaust plume characteristics, (2) application of appropriate similarity parameters; and (3) analysis of wind tunnel test data. Verification of the two-phase plume and plume impingement models was directed toward the definition of the full-scale exhaust plume characteristics and the separation motor impingement problem.

On substructuring algorithms and solution techniques for the numerical approximation of partial differential equations

NASA Technical Reports Server (NTRS)

Gunzburger, M. D.; Nicolaides, R. A.

1986-01-01

Substructuring methods are in common use in mechanics problems where typically the associated linear systems of algebraic equations are positive definite. Here these methods are extended to problems which lead to nonpositive definite, nonsymmetric matrices. The extension is based on an algorithm which carries out the block Gauss elimination procedure without the need for interchanges even when a pivot matrix is singular. Examples are provided wherein the method is used in connection with finite element solutions of the stationary Stokes equations and the Helmholtz equation, and dual methods for second-order elliptic equations.

Expedient Gap Definition Using 3D LADAR

DTIC Science & Technology

2006-09-01

Research and Development Center (ERDC), ASI has developed an algorithm to reduce the 3D point cloud acquired with the LADAR system into sets of 2D...ATO IV.GC.2004.02. The GAP Program is conducted by the U.S. Army Engineer Research and Development Center (ERDC) in conjunction with the U.S. Army...Introduction 1 1 Introduction Background The Battlespace Gap Definition and Defeat ( GAP ) Program is conducted by the U.S. Army Engineer Research and

Autonomous Intersection Management

DTIC Science & Technology

2009-12-01

is irrelevant. Fortunately, researchers are attacking this problem with many techniques. In 2004, Honda introduced an intelligent night vision system...or less a solved problem . The problem itself is not too difficult: there are no pedestrians or cyclists and vehicles travel in the same direction at...organized according to the following subgoals, each of which is a contribution of the thesis. 1. Problem definition First, this thesis contributes a

An Integrated Architecture for Engineering Problem Solving

DTIC Science & Technology

1998-12-01

mentioned in the problem statement In the next section, we describe the definition of qualitative state and our extension to Gizmo (Forbus & de Kleer...possible qualitative transitions Figure 28: Mapping from problem specification to qualitative states We use Gizmo (Forbus, 1984b), developed by Ken...Forbus, to perform the necessary qualitative analysis. The initial partial problem specification becomes the scenario for Gizmo . The domain knowledge

Results of the Software Process Improvement Efforts of the Early Adopters in NAVAIR 4.0

DTIC Science & Technology

2007-12-01

and customer satisfaction. AIRSpeed utilizes a structured, problem solving methodology called DMAIC (Define, Measure, Analyze, Improve, Control...widely used in business. DMAIC leads project teams through the logical steps from problem definition to problem resolution. Each phase has a specific set...costs and improving productivity and customer satisfaction. AIRSpeed utilizes the DMAIC (Define, Measure, Analyze, Improve, Control) structured problem

Perspectives of the Continuing Education Unit

ERIC Educational Resources Information Center

Long, Huey B.

1974-01-01

The article discusses the Continuing Education Unit's chameleon-like nature by focusing on its definition and background and possible perceptions from the academic perspective, the user group perspective and the individual learner's perspective. (AG)

U.S. intermodal freight transportation : opportunities and obstacles

DOT National Transportation Integrated Search

1996-08-01

This study offers background information on, definition and system architecture of, and stakeholders and impediments of intermodal freight transportation. The research also provides brief information on the current and future freight movement, domest...

Culture.

PubMed

Smith, Timothy B; Rodríguez, Melanie Domenech; Bernal, Guillermo

2011-02-01

This article summarizes the definitions, means, and research of adapting psychotherapy to clients' cultural backgrounds. We begin by reviewing the prevailing definitions of cultural adaptation and providing a clinical example. We present an original meta-analysis of 65 experimental and quasi-experimental studies involving 8,620 participants. The omnibus effect size of d = .46 indicates that treatments specifically adapted for clients of color were moderately more effective with that clientele than traditional treatments. The most effective treatments tended to be those with greater numbers of cultural adaptations. Mental health services targeted to a specific cultural group were several times more effective than those provided to clients from a variety of cultural backgrounds. We recommend a series of research-supported therapeutic practices that account for clients' culture, with culture-specific treatments being more effective than generally culture-sensitive treatments. © 2010 Wiley Periodicals, Inc.

Multicultural voices: Attitudes of older adults in the United States about elder mistreatment.

PubMed

Enguidanos, Susan; DeLiema, Marguerite; Aguilar, Iris; Lambrinos, Jorge; Wilber, Kathleen

2014-05-01

Despite international growth in policies to increase the identification and response to elder abuse and neglect, there remain considerable barriers to treating the problem. Some of these barriers may be attributed to how older adults from different racial/ethnic backgrounds define, experience, and seek to remedy elder mistreatment. Using focus group discussions based on case vignettes, this paper examines how older adults from different racial and ethnic backgrounds in the United States perceive elder mistreatment. Five focus groups were conducted with African Americans, English-speaking Latinos, Spanish-speaking Latinos, non-Latino Whites and African American caregivers for older adults. While similar definitions and meanings of elder abuse were expressed across the different racial/ethnic groups, Latino participants introduced additional themes of machismo, respect, love , and e arly intervention to stop abuse, suggesting that perceptions/beliefs about elder mistreatment are determined by culture and degree of acculturation in addition to race/ethnicity. Most differences in attitudes occurred within groups, demonstrating that perceptions vary by individual as well as by culture. In identifying scenarios that constitute elder mistreatment, some participants felt that certain cases of abuse are actually the persistence of intimate partner violence into old age. Participants also indicated that victims may prefer to tolerate mistreatment in exchange for other perceived benefits (e.g., companionship, security); and out of fear that they could be placed in an institution if mistreatment is reported. Findings suggest the need for person-centred intervention and prevention models that integrate the cultural background, care needs, and individual preferences of older adults.

Multicultural voices: Attitudes of older adults in the United States about elder mistreatment

PubMed Central

Enguidanos, Susan; DeLiema, Marguerite; Aguilar, Iris; Lambrinos, Jorge; Wilber, Kathleen

2014-01-01

Despite international growth in policies to increase the identification and response to elder abuse and neglect, there remain considerable barriers to treating the problem. Some of these barriers may be attributed to how older adults from different racial/ethnic backgrounds define, experience, and seek to remedy elder mistreatment. Using focus group discussions based on case vignettes, this paper examines how older adults from different racial and ethnic backgrounds in the United States perceive elder mistreatment. Five focus groups were conducted with African Americans, English-speaking Latinos, Spanish-speaking Latinos, non-Latino Whites and African American caregivers for older adults. While similar definitions and meanings of elder abuse were expressed across the different racial/ethnic groups, Latino participants introduced additional themes of machismo, respect, love, and early intervention to stop abuse, suggesting that perceptions/beliefs about elder mistreatment are determined by culture and degree of acculturation in addition to race/ethnicity. Most differences in attitudes occurred within groups, demonstrating that perceptions vary by individual as well as by culture. In identifying scenarios that constitute elder mistreatment, some participants felt that certain cases of abuse are actually the persistence of intimate partner violence into old age. Participants also indicated that victims may prefer to tolerate mistreatment in exchange for other perceived benefits (e.g., companionship, security); and out of fear that they could be placed in an institution if mistreatment is reported. Findings suggest the need for person–centred intervention and prevention models that integrate the cultural background, care needs, and individual preferences of older adults. PMID:25364064

Defining Information Security.

PubMed

Lundgren, Björn; Möller, Niklas

2017-11-15

This article proposes a new definition of information security, the 'Appropriate Access' definition. Apart from providing the basic criteria for a definition-correct demarcation and meaning concerning the state of security-it also aims at being a definition suitable for any information security perspective. As such, it bridges the conceptual divide between so-called 'soft issues' of information security (those including, e.g., humans, organizations, culture, ethics, policies, and law) and more technical issues. Because of this it is also suitable for various analytical purposes, such as analysing possible security breaches, or for studying conflicting attitudes on security in an organization. The need for a new definition is demonstrated by pointing to a number of problems for the standard definition type of information security-the so-called CIA definition. Besides being too broad as well as too narrow, it cannot properly handle the soft issues of information security, nor recognize the contextual and normative nature of security.

Development of guidelines for the definition of the relavant information content in data classes

NASA Technical Reports Server (NTRS)

Schmitt, E.

1973-01-01

The problem of experiment design is defined as an information system consisting of information source, measurement unit, environmental disturbances, data handling and storage, and the mathematical analysis and usage of data. Based on today's concept of effective computability, general guidelines for the definition of the relevant information content in data classes are derived. The lack of a universally applicable information theory and corresponding mathematical or system structure is restricting the solvable problem classes to a small set. It is expected that a new relativity theory of information, generally described by a universal algebra of relations will lead to new mathematical models and system structures capable of modeling any well defined practical problem isomorphic to an equivalence relation at any corresponding level of abstractness.

A Subspace Semi-Definite programming-based Underestimation (SSDU) method for stochastic global optimization in protein docking*

PubMed Central

Nan, Feng; Moghadasi, Mohammad; Vakili, Pirooz; Vajda, Sandor; Kozakov, Dima; Ch. Paschalidis, Ioannis

2015-01-01

We propose a new stochastic global optimization method targeting protein docking problems. The method is based on finding a general convex polynomial underestimator to the binding energy function in a permissive subspace that possesses a funnel-like structure. We use Principal Component Analysis (PCA) to determine such permissive subspaces. The problem of finding the general convex polynomial underestimator is reduced into the problem of ensuring that a certain polynomial is a Sum-of-Squares (SOS), which can be done via semi-definite programming. The underestimator is then used to bias sampling of the energy function in order to recover a deep minimum. We show that the proposed method significantly improves the quality of docked conformations compared to existing methods. PMID:25914440

World Refugee Crisis: Winning the Game. Facts for Action #6.

ERIC Educational Resources Information Center

Oxfam America, Boston, MA.

Definitions, statistics, and problems of world refugees are presented in this document for high school global education classes. Although various agencies have determined different definitions of the term, the authors consider as refugees all those forced to flee their native land in order to survive. For most refugees the attraction of a higher…

Information Resources Management: An Overview for Educators.

ERIC Educational Resources Information Center

Daniel, Evelyn H.

This paper presents an overview of the emerging information resources management (IRM) concept and suggests reasons why IRM would be a useful framework for educational institutions. An introductory look at current information problems precedes a review of definitions of information and IRM in the literature, and a definition of IRM as used in this…

76 FR 20598 - Approval and Promulgation of Air Quality Implementation Plans; Ohio; Control of Emissions of...

Federal Register 2010, 2011, 2012, 2013, 2014

2011-04-13

... methods and definitions. The most significant problem with the prior version is the definition of... submitted to EPA a new Rule 3745-21-25 ``Control of VOC emissions from reinforced plastic composites... acceptable because Ohio has adopted OAC 3745-21- 25 for Reinforced Plastics Composites Production Operations...

A Qualitative Assessment of the Meaning of Shared Governance at a Parochial University

ERIC Educational Resources Information Center

Glover-Alves, Shaton Monique

2012-01-01

Shared governance is a treasured tradition of academe. Problems of administrative practice arise when meanings and definitions of shared governance are undefined and implicit rather than defined and explicit. What are the meanings and definitions of shared governance when several governance models are considered and how does shared governance…

Habitat II and the Challenge of the Urban Environment: Bringing Together the Two Definitions of Habitat.

ERIC Educational Resources Information Center

Cohen, Michael

1996-01-01

Identifies major problems and concerns to be addressed at the upcoming Habitat II conference in Istanbul, Turkey. Details a number of recent significant developments, all of them related to emerging patterns of economic productivity, demographic concentration, and environmental pollution. Proposes a dual-definition of "habitat" as both…

Urogenital tuberculosis: definition and classification.

PubMed

Kulchavenya, Ekaterina

2014-10-01

To improve the approach to the diagnosis and management of urogenital tuberculosis (UGTB), we need clear and unique classification. UGTB remains an important problem, especially in developing countries, but it is often an overlooked disease. As with any other infection, UGTB should be cured by antibacterial therapy, but because of late diagnosis it may often require surgery. Scientific literature dedicated to this problem was critically analyzed and juxtaposed with the author's own more than 30 years' experience in tuberculosis urology. The conception, terms and definition were consolidated into one system; classification stage by stage as well as complications are presented. Classification of any disease includes dispersion on forms and stages and exact definitions for each stage. Clinical features and symptoms significantly vary between different forms and stages of UGTB. A simple diagnostic algorithm was constructed. UGTB is multivariant disease and a standard unified approach to it is impossible. Clear definition as well as unique classification are necessary for real estimation of epidemiology and the optimization of therapy. The term 'UGTB' has insufficient information in order to estimate therapy, surgery and prognosis, or to evaluate the epidemiology.

Northwestern University Flexible Subischial Vacuum Socket for persons with transfemoral amputation: Part 2 Description and Preliminary evaluation

PubMed Central

Fatone, Stefania; Caldwell, Ryan

2017-01-01

Background: Current transfemoral prosthetic sockets are problematic as they restrict function, lack comfort, and cause residual limb problems. Development of a subischial socket with lower proximal trim lines is an appealing way to address this problem and may contribute to improving quality of life of persons with transfemoral amputation. Objectives: The purpose of this study was to illustrate the use of a new subischial socket in two subjects. Study design: Case series. Methods: Two unilateral transfemoral prosthesis users participated in preliminary socket evaluations comparing functional performance of the new subischial socket to ischial containment sockets. Testing included gait analysis, socket comfort score, and performance-based clinical outcome measures (Rapid-Sit-To-Stand, Four-Square-Step-Test, and Agility T-Test). Results: For both subjects, comfort was better in the subischial socket, while gait and clinical outcomes were generally comparable between sockets. Conclusion: While these evaluations are promising regarding the ability to function in this new socket design, more definitive evaluation is needed. Clinical relevance Using gait analysis, socket comfort score and performance-based outcome measures, use of the Northwestern University Flexible Subischial Vaccum Socket was evaluated in two transfemoral prosthesis users. Socket comfort improved for both subjects with comparable function compared to ischial containment sockets. PMID:28132589

Intersection negotiation problems of older drivers. Volume 2, Background synthesis on age and intersection driving difficulties

DOT National Transportation Integrated Search

1998-09-01

This project included a background literature synthesis and observational field study. The research goals were to document driving problems and errors at intersections, for older drivers using their own cars to travel familiar and unfamiliar routes, ...

Looking back at 'looking back': operationalising referential gaze for dingoes in an unsolvable task.

PubMed

Smith, Bradley Philip; Litchfield, Carla Anita

2013-11-01

This paper examined the performance of dingoes (Canis dingo) on the rope-pulling task, previously used by Miklósi et al. (Curr Biol 13:763-766, 2003) to highlight a key distinction in the problem-solving behaviour of wolves compared to dogs when in the company of humans. That is, when dogs were confronted with an unsolvable task, following a solvable version of the task they looked back or gazed at the human, whereas, wolves did not. We replicated the rope-pulling task using 12 sanctuary-housed dingoes and used the Miklósi et al. (Curr Biol 13:763-766, 2003) definition of looking back behaviour to analyse the data. However, at least three different types of look backs were observed in our study. We, then developed a more accurate operational definition of looking back behaviour that was task specific and reanalysed the data. We found that the operational definition employed greatly influences the results, with vague definitions potentially overestimating the prevalence of looking back behaviour. Thus, caution must be taken when interpreting the results of studies utilising looking back as behaviour linked to assistance seeking during problem solving. We present a more stringent definition and make suggestions for future research.

Strategic action or self-control? Adolescent information management and delinquency.

PubMed

Grigoryeva, Maria S

2018-05-01

Recent scholarship has begun to challenge the prevailing view that children are passive recipients of parental socialization, including the common belief that parental disciplinary practices are central to explaining adolescent problem behaviors. This research shows that children exert a significant influence over parents via information management, or the degree to which children disclose information about their behavior to parents. Despite the incorporation of child information management into contemporary models of parenting, significant theoretical and empirical concerns cast doubt on its utility over classic parent-centered approaches. The current paper addresses these concerns and adjudicates between disparate definitions of adolescent information management in two ways. First, it provides a theoretically grounded definition of information management as agentic behavior. Second, it specifies a model that tests definitions of secret keeping as agentic against a non-agentic definition of secret keeping supplied by criminological theories of self-control. The model is estimated with three four-wave cross-lagged panel models, which disentangle the interrelationships between parenting, child concealment of information, and child problem behavior in a sample of high risk youth. The results offer support for a definition of concealment as strategic and self-regarding, and have implications for research on delinquency, parent-child interactions, and child agency. Copyright © 2018 Elsevier Inc. All rights reserved.

Combination of Didactic Lectures with Problem-Based Learning Sessions in Physiology Teaching in a Developing Medical College in Nepal.

ERIC Educational Resources Information Center

Ghosh, Sarmishtha; Dawka, Violet

2000-01-01

Introduces the SPICES curriculum of the Manipal College of Medical Sciences in Nepal, which is student centered, problem based, integrated, community-based, elective oriented, and systematic. Reports that the majority of students opined that the combination of didactic lectures and problem-based learning sessions were definitely beneficial.…

The Application of Problem Solving Method on Science Teacher Trainees on the Solution of the Environmental Problems

ERIC Educational Resources Information Center

Dogru, Mustafa

2008-01-01

Helping students to improve their problems solving skills is the primary target of science teacher trainees. In modern science, for training the students, methods should be used for improving their thinking skills, making connections with events and concepts and scientific operations skills rather than information and definition giving. One of…

Functional Behavioral Assessment for a Boy with Duchenne Muscular Dystrophy and Problem Behavior: A Case Study from Greece

ERIC Educational Resources Information Center

Theodoridou, Zoe; Koutsoklenis, Athanasios

2013-01-01

This article focuses on the application of functional behavioral assessment (FBA) to design a positive behavior intervention (PBI) for a boy with Duchenne muscular dystrophy (DMD) who encounters serious difficulties at the mainstream school because of behavioral problems and physical limitations. After the definition of problem behavior and its…

Preliminary Validation of a New Clinical Tool for Identifying Problem Video Game Playing

ERIC Educational Resources Information Center

King, Daniel Luke; Delfabbro, Paul H.; Zajac, Ian T.

2011-01-01

Research has estimated that between 6 to 13% of individuals who play video games do so excessively. However, the methods and definitions used to identify "problem" video game players often vary considerably. This research presents preliminary validation data for a new measure of problematic video game play called the Problem Video Game…

Problem Definition as a Stimulus to the Creative Process: Analysis of a Classroom Exercise

ERIC Educational Resources Information Center

Vizioli, Renato; Kaminski, Paulo Carlos

2017-01-01

Dealing with problem-solving has been a growing challenge in teaching engineering and over the career of these professionals. To increase the ability to understand a problem and consequently improve the quality of the solutions, an exercise was proposed to students of an MBA program, and they have experienced some challenges on interpreting…

Topics on data transmission problem in software definition network

NASA Astrophysics Data System (ADS)

Gao, Wei; Liang, Li; Xu, Tianwei; Gan, Jianhou

2017-08-01

In normal computer networks, the data transmission between two sites go through the shortest path between two corresponding vertices. However, in the setting of software definition network (SDN), it should monitor the network traffic flow in each site and channel timely, and the data transmission path between two sites in SDN should consider the congestion in current networks. Hence, the difference of available data transmission theory between normal computer network and software definition network is that we should consider the prohibit graph structures in SDN, and these forbidden subgraphs represent the sites and channels in which data can't be passed by the serious congestion. Inspired by theoretical analysis of an available data transmission in SDN, we consider some computational problems from the perspective of the graph theory. Several results determined in the paper imply the sufficient conditions of data transmission in SDN in the various graph settings.

Manifold Preserving: An Intrinsic Approach for Semisupervised Distance Metric Learning.

PubMed

Ying, Shihui; Wen, Zhijie; Shi, Jun; Peng, Yaxin; Peng, Jigen; Qiao, Hong

2017-05-18

In this paper, we address the semisupervised distance metric learning problem and its applications in classification and image retrieval. First, we formulate a semisupervised distance metric learning model by considering the metric information of inner classes and interclasses. In this model, an adaptive parameter is designed to balance the inner metrics and intermetrics by using data structure. Second, we convert the model to a minimization problem whose variable is symmetric positive-definite matrix. Third, in implementation, we deduce an intrinsic steepest descent method, which assures that the metric matrix is strictly symmetric positive-definite at each iteration, with the manifold structure of the symmetric positive-definite matrix manifold. Finally, we test the proposed algorithm on conventional data sets, and compare it with other four representative methods. The numerical results validate that the proposed method significantly improves the classification with the same computational efficiency.

Proposed definition of the term en route in en route aircraft noise

NASA Technical Reports Server (NTRS)

Garbell, Maurice A.

1990-01-01

The problem of en route aircraft noise was examined in a formal, dedicated, setting. Whereas the general meaning of the term en route might be intuitively understood, it is suggested that a precise formal definition of the term en route would be opportune from the outset, especially since the scientific and technical investigation of the problem of noise immissions on the ground from aircraft in flight away from the airspace of an airport may conceivably lead to administrative, regulatory, and legal consequences that would mandatorily require a precise definition of the term en route. Five flight segments, with their differing airframe configurations, engine thrusts, and airspeed management, should form the basis for the differential consideration of the noise immissions perceived on the ground underneath or near the defined segments of the flightpath in en route flight, from the end of the initial climb from an airport after takeoff until the final approach to an airport.

Family violence.

PubMed

Emery, R E

1989-02-01

Researchers and policymakers have begun to recognize the extent and severity of family violence in recent years, particularly its effects on children. Despite a flurry of research, however, there is much disagreement about the definition of violence, its development, the consequences for victims, and the most effective avenues for intervention. Similar conceptual, methodological, and practical problems are faced by those working in the areas of physical child abuse, child sex abuse, and child witnesses to spouse abuse. In further research on these complex problems, researchers are encouraged to use operational definitions that avoid terms like abuse and violence, to focus new efforts on emotional mediators of violent actions, to evaluate the effects of violence on the entire family system, and to redouble efforts to conduct systematic outcome research. Those professionals who are currently responsible for intervention are encouraged to use definitions of and responses to family violence that match those used for assaults between strangers.

A proposal for a new definition of the axial rotation angle of the shoulder joint.

PubMed

Masuda, Tadashi; Ishida, Akimasa; Cao, Lili; Morita, Sadao

2008-02-01

The Euler/Cardan angles are commonly used to define the motions of the upper arm with respect to the trunk. This definition, however, has a problem in that the angles of both the horizontal flexion/extension and the axial rotation of the shoulder joint become unstable at the gimbal-lock positions. In this paper, a new definition of the axial rotation angle was proposed. The proposed angle was stable over the entire range of the shoulder motion. With the new definition, the neutral position of the axial rotation agreed with that in the conventional anatomy. The advantage of the new definition was demonstrated by measuring actual complex motions of the shoulder with a three-dimensional motion capture system.

The Meaning of Black Music

ERIC Educational Resources Information Center

Byrd, Donald

1972-01-01

Discusses the definition of black music in terms of the history and cultural background of black people, places it within the larger scope of western music, and suggests its survival value with respect to black people. (JM)

Environmental Sustainability, Ecosystem Services, and Human Well-being

EPA Science Inventory

This article examines environmental sustainability from several perspectives. First we offer definitions and some historical background. Then through case studies of marine fisheries, agricultural systems, and urban environments, we illustrate contrasts between unsustainable and ...

Development of simulation computer complex specification

NASA Technical Reports Server (NTRS)

1973-01-01

The Training Simulation Computer Complex Study was one of three studies contracted in support of preparations for procurement of a shuttle mission simulator for shuttle crew training. The subject study was concerned with definition of the software loads to be imposed on the computer complex to be associated with the shuttle mission simulator and the development of procurement specifications based on the resulting computer requirements. These procurement specifications cover the computer hardware and system software as well as the data conversion equipment required to interface the computer to the simulator hardware. The development of the necessary hardware and software specifications required the execution of a number of related tasks which included, (1) simulation software sizing, (2) computer requirements definition, (3) data conversion equipment requirements definition, (4) system software requirements definition, (5) a simulation management plan, (6) a background survey, and (7) preparation of the specifications.

Basic research for the geodynamics program

NASA Technical Reports Server (NTRS)

1991-01-01

The mathematical models of space very long base interferometry (VLBI) observables suitable for least squares covariance analysis were derived and estimatability problems inherent in the space VLBI system were explored, including a detailed rank defect analysis and sensitivity analysis. An important aim is to carry out a comparative analysis of the mathematical models of the ground-based VLBI and space VLBI observables in order to describe the background in detail. Computer programs were developed in order to check the relations, assess errors, and analyze sensitivity. In order to investigate the estimatability of different geodetic and geodynamic parameters from the space VLBI observables, the mathematical models for time delay and time delay rate observables of space VLBI were analytically derived along with the partial derivatives with respect to the parameters. Rank defect analysis was carried out both by analytical and numerical testing of linear dependencies between the columns of the normal matrix thus formed. Definite conclusions were formed about the rank defects in the system.

[The body as source of significance. Interdisciplinary perspectives].

PubMed

Tofan, I A; Crumpei, Irina

2010-01-01

This paper concerns a general theoretical aspect, followed by different examples which discusses the thesis in relation to major connected domains of research: psychology and philosophy. The thesis which we are arguing for is that the body represents a source of significance in the definitions of he self used as theoretical background in moral problems (philosophical aspect) and the explanations of the way the image of the self is constituted (psychological aspect). The philosophical "conclusion" is that the body, in its materiality, cannot be judged by the metaphysical dualism scheme, which assigns it a secondary role in the hierarchy of categories. From a psychological point of view, this paper tends to show that the body does not represent an accident of personality or a "prison of the soul" as Plato refers to it, but rather an element through which personality is built on and develops and similarly, the mental and personality structures are those which allow the forming of corporeality and then the person's reference to it.

Enhanced definitions of intimate partner violence for DSM-5 and ICD-11 may promote improved screening and treatment.

PubMed

Heyman, Richard E; Slep, Amy M Smith; Foran, Heather M

2015-03-01

Nuanced, multifaceted, and content valid diagnostic criteria for intimate partner violence (IPV) have been created and can be used reliably in the field even by those with little-to-no clinical training/background. The use of such criteria such as these would likely lead to more reliable decision making in the field and more consistency across studies. Further, interrater agreement was higher than that usually reported for individual mental disorders. This paper will provide an overview of (a) IPV's scope and impact; (b) the reliable and valid diagnostic criteria that have been used and the adaptation of these criteria inserted in the latest Diagnostic and Statistical Manual of Mental Disorders (DSM) and another adaptation proposed for the forthcoming International Statistical Classification of Diseases and Related Health Problems (ICD); (c) suggestions for screening of IPV in primary care settings; (d) interventions for IPV; and (e) suggested steps toward globally accepted programs. © 2015 Family Process Institute.

Exercise and the heart: can you have too much of a good thing?

PubMed

George, Keith; Shave, Rob; Warburton, Darren; Scharhag, Jürgen; Whyte, Greg

2008-08-01

Reports that participation in prolonged exercise can lead to a transient depression in ventricular function and/or a minor increase in biomarkers of cardiomyocyte insult have stimulated significant media and scientific attention in the last few years. Despite being of relevance to the scientist, the clinician, and a broad spectrum of athletes, these phenomena are poorly defined and controversial. Specifically, the definition and the description of these topics are quite limited, and conflicting data are available. Further, the mechanisms underpinning these events are not clear. Finally, a clear message related to the short- and the long-term impact on cardiovascular health and/or sports performance is lacking. The symposium "Exercise and the heart: Can you have too much of a good thing?" was presented at the ACSM Annual Meeting in New Orleans on June 1, 2007 to specifically address these issues. This initial introduction sets out the background to the main articles that will document our current understanding of these problems as well as suggest important avenues for further research.

Study of a quadratic redshift-based correction in f(R) gravity with Baryonic matter

NASA Astrophysics Data System (ADS)

Masoudi, Mozhgan; Saffari, Reza

2015-08-01

This paper is considered as a second-order redshift-based corrections in derivative of modified gravitational action, f(R), to explain the late time acceleration which is appeared by Supernova Type Ia (SNeIa) without considering the dark components. Here, we obtained the cosmological dynamic parameters of universe for this redshift depended corrections. Next, we used the recent data of SNeIa Union2, shift parameter of the cosmic background radiation, Baryon acoustic oscillation from sloan digital sky survey (SDSS), and combined analysis of these observations to put constraints on the parameters of the selected F(z) model. It is very interesting that the well-known age problem of the three old objects for combined observations can be alleviated in this model. Finally, the reference action will be constructed in terms of its Taylor expansion. Also, we show that the reconstructed action definitely pass the solar system and stability of the cosmological solution tests.

An analysis of temperature-induced errors for an ultrasound distance measuring system. M. S. Thesis

NASA Technical Reports Server (NTRS)

Wenger, David Paul

1991-01-01

The presentation of research is provided in the following five chapters. Chapter 2 presents the necessary background information and definitions for general work with ultrasound and acoustics. It also discusses the basis for errors in the slant range measurements. Chapter 3 presents a method of problem solution and an analysis of the sensitivity of the equations to slant range measurement errors. It also presents various methods by which the error in the slant range measurements can be reduced to improve overall measurement accuracy. Chapter 4 provides a description of a type of experiment used to test the analytical solution and provides a discussion of its results. Chapter 5 discusses the setup of a prototype collision avoidance system, discusses its accuracy, and demonstrates various methods of improving the accuracy along with the improvements' ramifications. Finally, Chapter 6 provides a summary of the work and a discussion of conclusions drawn from it. Additionally, suggestions for further research are made to improve upon what has been presented here.

Police Self-Deployment at Critical Incidents: A Wicked Problem or a Part of the Solution

DTIC Science & Technology

2017-09-01

bombings , this thesis explored police self-deployment through the lens of wicked problems. A better understanding of the definition resulted in...police, ICS, wicked problems, Boston Marathon bombings , edge of chaos, apperception, phronesis, self-initiated, Cynefin framework, after-action...manhunt and 2013 Boston Marathon bombings , this thesis explored police self-deployment through the lens of wicked problems. A better understanding of

Installation Restoration Program. Phase II: Stage 1 Problem Confirmation Study, Duluth International Airport, Duluth, Minnesota.

DTIC Science & Technology

1984-10-01

8 iii "i t-. Table of Contents (cont.) Section Title Page -APPENDIX A Acronyms, Definitions, Nomenclature and Units of Measure B Scope of Work, Task...Identification/Records Search Phase II - Problem Confirmation and Quantification Phase III - Technology Base Development Phase IV - Corrective Action Only...Problem Identification/Records Search Phase II - Problem Confirmation and Quantification Phase III - Technology Base Development Phase IV - Corrective

Solving Multi-variate Polynomial Equations in a Finite Field

DTIC Science & Technology

2013-06-01

Algebraic Background In this section, some algebraic definitions and basics are discussed as they pertain to this re- search. For a more detailed...definitions and basics are discussed as they pertain to this research. For a more detailed treatment, consult a graph theory text such as [10]. A graph G...graph if V(G) can be partitioned into k subsets V1,V2, ...,Vk such that uv is only an edge of G if u and v belong to different partite sets. If, in

Reference earth orbital research and applications investigations (blue book). Volume 1: Summary

NASA Technical Reports Server (NTRS)

1971-01-01

The criteria, guidelines, and an organized approach for use in the space station and space shuttle program definition phase are presented. Subjects discussed are: (1) background information and evolution of the studies, (2) definition of terms used, (3) concepts of the space shuttle, space station, experiment modules, shuttle-sortie operations and modular space station, and (4) summary of functional program element (FPE) requirements. Diagrams of the various configurations and the experimental equipment to be installed in the structures are included.

EAP and LLNP Students: Common Problems and Strategies

ERIC Educational Resources Information Center

Nguyen, Thi Minh Phuong

2010-01-01

As English learners originate from many cultural and language backgrounds, they come to class with different circumstances. This paper examines the backgrounds, common problems and solutions for English for Academic Purposes (EAP) students and Language, Literacy, and Numeracy Programme (LLNP) students. EAP students are from Meridian International…

Contracting for Change

ERIC Educational Resources Information Center

Scholtes, Peter R.

1975-01-01

An organizational workshop for staff members focused on organizational change through identification of problems, one-to-one communication, and the writing of contracts for behavioral change. Contract forming assists members to agree on definition of problems, to involve and commit themselves, and to define processes for change. (EA)

The European General Practice Research Network Presents the Translations of Its Comprehensive Definition of Multimorbidity in Family Medicine in Ten European Languages

PubMed Central

Le Reste, Jean Yves; Nabbe, Patrice; Rivet, Charles; Lygidakis, Charilaos; Doerr, Christa; Czachowski, Slawomir; Lingner, Heidrun; Argyriadou, Stella; Lazic, Djurdjica; Assenova, Radost; Hasaganic, Melida; Munoz, Miquel Angel; Thulesius, Hans; Le Floch, Bernard; Derriennic, Jeremy; Sowinska, Agnieska; Van Marwijk, Harm; Lietard, Claire; Van Royen, Paul

2015-01-01

Background Multimorbidity, according to the World Health Organization, exists when there are two or more chronic conditions in one patient. This definition seems inaccurate for the holistic approach to Family Medicine (FM) and long-term care. To avoid this pitfall the European General Practitioners Research Network (EGPRN) designed a comprehensive definition of multimorbidity using a systematic literature review. Objective To translate that English definition into European languages and to validate the semantic, conceptual and cultural homogeneity of the translations for further research. Method Forward translation of the EGPRN’s definition of multimorbidity followed by a Delphi consensus procedure assessment, a backward translation and a cultural check with all teams to ensure the homogeneity of the translations in their national context. Consensus was defined as 70% of the scores being higher than 6. Delphi rounds were repeated in each country until a consensus was reached Results 229 European medical expert FPs participated in the study. Ten consensual translations of the EGPRN comprehensive definition of multimorbidity were achieved. Conclusion A comprehensive definition of multimorbidity is now available in English and ten European languages for further collaborative research in FM and long-term care. PMID:25607642

Mapping Turnaround Times (TAT) to a Generic Timeline: A Systematic Review of TAT Definitions in Clinical Domains

PubMed Central

2011-01-01

Background Assessing turnaround times can help to analyse workflows in hospital information systems. This paper presents a systematic review of literature concerning different turnaround time definitions. Our objectives were to collect relevant literature with respect to this kind of process times in hospitals and their respective domains. We then analysed the existing definitions and summarised them in an appropriate format. Methods Our search strategy was based on Pubmed queries and manual reviews of the bibliographies of retrieved articles. Studies were included if precise definitions of turnaround times were available. A generic timeline was designed through a consensus process to provide an overview of these definitions. Results More than 1000 articles were analysed and resulted in 122 papers. Of those, 162 turnaround time definitions in different clinical domains were identified. Starting and end points vary between these domains. To illustrate those turnaround time definitions, a generic timeline was constructed using preferred terms derived from the identified definitions. The consensus process resulted in the following 15 terms: admission, order, biopsy/examination, receipt of specimen in laboratory, procedure completion, interpretation, dictation, transcription, verification, report available, delivery, physician views report, treatment, discharge and discharge letter sent. Based on this analysis, several standard terms for turnaround time definitions are proposed. Conclusion Using turnaround times to benchmark clinical workflows is still difficult, because even within the same clinical domain many different definitions exist. Mapping of turnaround time definitions to a generic timeline is feasible. PMID:21609424

The Montreux definition of neonatal ARDS: biological and clinical background behind the description of a new entity.

PubMed

De Luca, Daniele; van Kaam, Anton H; Tingay, David G; Courtney, Sherry E; Danhaive, Olivier; Carnielli, Virgilio P; Zimmermann, Luc J; Kneyber, Martin C J; Tissieres, Pierre; Brierley, Joe; Conti, Giorgio; Pillow, Jane J; Rimensberger, Peter C

2017-08-01

Acute respiratory distress syndrome (ARDS) is undefined in neonates, despite the long-standing existing formal recognition of ARDS syndrome in later life. We describe the Neonatal ARDS Project: an international, collaborative, multicentre, and multidisciplinary project which aimed to produce an ARDS consensus definition for neonates that is applicable from the perinatal period. The definition was created through discussions between five expert members of the European Society for Paediatric and Neonatal Intensive Care; four experts of the European Society for Paediatric Research; two independent experts from the USA and two from Australia. This Position Paper provides the first consensus definition for neonatal ARDS (called the Montreux definition). We also provide expert consensus that mechanisms causing ARDS in adults and older children-namely complex surfactant dysfunction, lung tissue inflammation, loss of lung volume, increased shunt, and diffuse alveolar damage-are also present in several critical neonatal respiratory disorders. Copyright © 2017 Elsevier Ltd. All rights reserved.

Definitions in use by the visible and near-infrared, and thermal working groups

NASA Technical Reports Server (NTRS)

Bruegge, Carol J.; Miller, ED; Martin, Bob; Kieffer, Hugh H.; Palmer, James M.

1992-01-01

The Calibration Advisory Panel (CAP) is composed of calibration experts from each of the Earth Observing System (EOS) instruments, science investigation, and cross-calibration teams. These members come from a variety of institutions and backgrounds. In order to facilitate an exchange of ideas, and assure a common basis for communication, it was desirable to assemble this list of definitions. These definitions were developed for use by the visible and near-infrared working group, and the thermal infrared working group. Where necessary or appropriate, deviations from these for specific instruments or other sensor types are given in the individual calibration plans. The definitions contained in this document are derived, wherever possible, from definitions accepted by international and national metrological commissions including the United States National Institute of Standards and Technology (NIST), the International Bureau of Weights and Measures (BIPM), the International Electrotechnical Commission (IEC), the International Organization for Standardization (ISO), and the International Organization of Legal Metrology (OIML).

Problem of Determining the Chance (Casus) in Criminal Law

ERIC Educational Resources Information Center

Veresha, Roman V.

2016-01-01

The article considers a concept of chance (casus) in criminal law and its main features. A definition of chance (casus) was analyzed as faultless causing of harm from a perspective of delimitation of the concept from carelessness in the form of criminal negligence. Particular attention is paid to the legislative definition of faultless causing of…

Aspect and the Biblical Hebrew Niphal and Hitpael

ERIC Educational Resources Information Center

Benton, Richard Charles, Jr.

2009-01-01

This dissertation analyzes two derived Biblical Hebrew verbal forms, the Niphal and the Hitpael. Present scholarship on Biblical Hebrew does not agree on the definition or relationship of these two stems. In chapter 1 I outline the two major problems for the Niphal and Hitpael: (1) unified definitions for each, and (2) their functional overlap. An…

Defining Literacy and Illiteracy

ERIC Educational Resources Information Center

Horning, Alice S.

2007-01-01

To understand the problem of illiteracy, a detailed review of the definitions of literacy and illiteracy is in order. A full definition of these terms in the current print and electronic context of adult American society in school and out of school, and for adult learners of English as both a first and a second language is presented here. Strong,…

Putting the puzzle together: the role of 'problem definition' in complex clinical judgement.

PubMed

Cristancho, Sayra; Lingard, Lorelei; Forbes, Thomas; Ott, Michael; Novick, Richard

2017-02-01

We teach judgement in pieces; that is, we talk about each aspect separately (patient, plan, resources, technique, etc.). We also let trainees figure out how to put the pieces together. In complex situations, this might be problematic. Using data from a drawing-based study on surgeons' experiences with complex situations, we explore the notion of 'problem definition' in real-world clinical judgement using the theoretical lens of systems engineering. 'Emergence', the sensitising concept for analysis, is rooted in two key systems premises: that person and context are inseparable and that what emerges is an act of choice. Via a 'gallery walk' we used these premises to perform analysis on individual drawings as well as cross-comparisons of multiple drawings. Our focus was to understand similarities and differences among the vantage points used by multiple surgeons. In this paper we challenge two assumptions from current models of clinical judgement: that experts hold a fixed and static definition of the problem and that consequently the focus of the expert's work is on solving the problem. Each situation described by our participants revealed different but complementary perspectives of what a surgical problem might come to be: from concerns about ensuring standard of care, to balancing personal emotions versus care choices, to coordinating resources, and to maintaining control while in the midst of personality clashes. We suggest that it is only at the situation and system level, not at the individual level, that we are able to appreciate the nuances of defining the problem when experts make judgements during real-world complex situations. © 2016 John Wiley & Sons Ltd and The Association for the Study of Medical Education.

SCHOOL AND FAMILY BACKGROUND CORRELATES OF CHILDREN'S SCHOOL ANXIETY.

ERIC Educational Resources Information Center

DUNN, JAMES A.

A STUDY WAS MADE OF THE RELATIONSHIP OF CHILDREN'S SCHOOL MENTAL HEALTH PROBLEMS TO (1) THEIR INTELLECTUAL, ACADEMIC, AND SOCIAL PERFORMANCE AND (2) CERTAIN FAMILY, SCHOOL, AND COMMUNITY BACKGROUND VARIABLES. LITERATURE PERTINENT TO THE PROBLEM IS REVIEWED. THE SAMPLE CONSISTED OF 400 ELEMENTARY SCHOOL STUDENTS. GROUP INTELLIGENCE TESTS, AN…

28 CFR 105.22 - Definitions.

Code of Federal Regulations, 2011 CFR

2011-07-01

... Judicial Administration DEPARTMENT OF JUSTICE (CONTINUED) CRIMINAL HISTORY BACKGROUND CHECKS Private... to request a criminal history record information search of an employee through a state identification... official or the state legislature to perform centralized recordkeeping functions for criminal history...

28 CFR 105.22 - Definitions.

Code of Federal Regulations, 2012 CFR

2012-07-01

... Judicial Administration DEPARTMENT OF JUSTICE (CONTINUED) CRIMINAL HISTORY BACKGROUND CHECKS Private... to request a criminal history record information search of an employee through a state identification... official or the state legislature to perform centralized recordkeeping functions for criminal history...

28 CFR 105.22 - Definitions.

Code of Federal Regulations, 2013 CFR

2013-07-01

... Judicial Administration DEPARTMENT OF JUSTICE (CONTINUED) CRIMINAL HISTORY BACKGROUND CHECKS Private... to request a criminal history record information search of an employee through a state identification... official or the state legislature to perform centralized recordkeeping functions for criminal history...

28 CFR 105.22 - Definitions.

Code of Federal Regulations, 2014 CFR

2014-07-01

... Judicial Administration DEPARTMENT OF JUSTICE (CONTINUED) CRIMINAL HISTORY BACKGROUND CHECKS Private... to request a criminal history record information search of an employee through a state identification... official or the state legislature to perform centralized recordkeeping functions for criminal history...

28 CFR 105.22 - Definitions.

Code of Federal Regulations, 2010 CFR

2010-07-01

... Judicial Administration DEPARTMENT OF JUSTICE (CONTINUED) CRIMINAL HISTORY BACKGROUND CHECKS Private... to request a criminal history record information search of an employee through a state identification... official or the state legislature to perform centralized recordkeeping functions for criminal history...

Recommendations for numerical solution of reinforced-panel and fuselage-ring problems

NASA Technical Reports Server (NTRS)

Hoff, N J; Libby, Paul A

1949-01-01

Procedures are recommended for solving the equations of equilibrium of reinforced panels and isolated fuselage rings as represented by the external loads and the operations table established according to Southwell's method. From the solution of these equations the stress distribution can be easily determined. The method of systematic relaxations, the matrix-calculus method, and several other methods applicable in special cases are discussed. Definite recommendations are made for obtaining the solution of reinforced-panel problems which are generally designated as shear lag problems. The procedures recommended are demonstrated in the analysis of a number of panels. In the case of fuselage rings it is not possible to make definite recommendations for the solution of the equilibrium equations for all rings and loadings. However, suggestions based on the latest experience are made and demonstrated on several rings.

Problem Definition and Solution Strategies in Dental Practice. Final Report, September 19, 1979-October 31, 1980.

ERIC Educational Resources Information Center

Dane, J. K.; And Others

A study was conducted to identify and analyze clinical and nonclinical problems commonly met by dental practitioners, and the strategies and resources used by dentists to resolve these problems. Nearly 50 individuals in dentistry and related areas were organized into a steering committee and four task groups. Data were gathered through meetings of…

Structuring an Adult Learning Environment. Part IV: Establishing an Environment for Problem Solving.

ERIC Educational Resources Information Center

Frankel, Alan; Brennan, James

Through the years, many researchers have advanced theories of problem solving. Probably the best definition of problem solving to apply to adult learning programs is Wallas' (1926) four-stage theory. The stages are (1) a preparation, (2) an incubation period, (3) a moment of illumination, and (4) final application or verification of the solution.…

"We Definitely Wouldn't Be Able to Solve It All by Ourselves, but Together…": Group Synergy in Tertiary Students' Problem-Solving Practices

ERIC Educational Resources Information Center

Clark, Kathleen; James, Alex; Montelle, Clemency

2014-01-01

The ability to address and solve problems in minimally familiar contexts is the core business of research mathematicians. Recent studies have identified key traits and techniques that individuals exhibit while problem solving, and revealed strategies and behaviours that are frequently invoked in the process. We studied advanced calculus students…

"Cast Your Net Widely": Three Steps to Expanding and Refining Your Problem before Action Learning Application

ERIC Educational Resources Information Center

Reese, Simon R.

2015-01-01

This paper reflects upon a three-step process to expand the problem definition in the early stages of an action learning project. The process created a community-powered problem-solving approach within the action learning context. The simple three steps expanded upon in the paper create independence, dependence, and inter-dependence to aid the…

A RE-DEFINITION OF EDUCATIONAL PROBLEMS OCCASIONED BY DESEGREGATION AND TITLE IV OF THE CIVIL RIGHTS ACT OF 1964.

ERIC Educational Resources Information Center

BLAKE, ELIAS, JR.

THIS PAPER REVIEWS SOME OF THE PROBLEMS IN IMPLEMENTING TITLE IV OF THE CIVIL RIGHTS ACT OF 1964. THERE WAS CONFUSION ABOUT THE INTENT OF THE DIRECTIVES FOR INSTITUTES TO IMPROVE THE ABILITY OF SCHOOL PERSONNEL "TO DEAL EFFECTIVELY WITH SPECIAL EDUCATIONAL PROBLEMS" STEMMING FROM DESEGREGATION. THE TRAINING INSTITUTES ON TEACHING THE…

Linear Equations. [Student Worksheets for Vocational Agricultural Courses].

ERIC Educational Resources Information Center

Jewell, Larry R.

This learning module provides students with practice in applying algebraic operations to vocational agriculture. The module consists of unit objectives, definitions, information, problems to solve, worksheets suitable for various levels of vocational agriculture instruction, and answer keys for the problems and worksheets. This module, which…

The "B" in EBD Is Not Just for Bullying

ERIC Educational Resources Information Center

Kauffman, James M.

2015-01-01

Problems in defining emotional and behavioural difficulties of all types, including bullying, are discussed. Interactions among seeing, naming and communicating about these phenomena are considered. School and community characteristics of students with emotional and behavioural difficulties are touched upon. Major problems in definition and…

Common Fractions. [Student Worksheets for Vocational Agricultural Courses].

ERIC Educational Resources Information Center

Jewell, Larry R.

This learning module provides students with practice in applying mathematical operations to vocational agriculture. The module consists of unit objectives, definitions, information, problems to solve, worksheets suitable for various levels of vocational agriculture instruction, and answer keys for the problems and worksheets. This module, which…

Aeromagnetic Detection and Definition of Seamounts.

DTIC Science & Technology

1982-06-01

airborne gravimetry may be feasible, al- though further testing is necessary. A possible difficulty may result from the problem of obtaining useful data on...high calcium precipitation . Hopefully, the curves will increase the "safety factor" by an under-estimation of seamount peak depths. Another problem

A Systems Approach to Research in Vocational Education.

ERIC Educational Resources Information Center

Miller, Larry E.

1991-01-01

A methodology to address "soft system" problems (those that are unstructured or fuzzy) has these steps: (1) mapping the problem; (2) constructing a root definition; (3) applying conceptual models; (4) comparing models to the real world; and (5) finding and implementing feasible solutions. (SK)

Intelligence and Creativity in Problem Solving: The Importance of Test Features in Cognition Research

PubMed Central

Jaarsveld, Saskia; Lachmann, Thomas

2017-01-01

This paper discusses the importance of three features of psychometric tests for cognition research: construct definition, problem space, and knowledge domain. Definition of constructs, e.g., intelligence or creativity, forms the theoretical basis for test construction. Problem space, being well or ill-defined, is determined by the cognitive abilities considered to belong to the constructs, e.g., convergent thinking to intelligence, divergent thinking to creativity. Knowledge domain and the possibilities it offers cognition are reflected in test results. We argue that (a) comparing results of tests with different problem spaces is more informative when cognition operates in both tests on an identical knowledge domain, and (b) intertwining of abilities related to both constructs can only be expected in tests developed to instigate such a process. Test features should guarantee that abilities can contribute to self-generated and goal-directed processes bringing forth solutions that are both new and applicable. We propose and discuss a test example that was developed to address these issues. PMID:28220098

Use of various versions of Schwarz method for solving the problem of contact interaction of elastic bodies

NASA Astrophysics Data System (ADS)

Galanin, M. P.; Lukin, V. V.; Rodin, A. S.

2018-04-01

A definition of a sufficiently common problem of mechanical contact interaction in a system of elastic bodies is given. Various versions of realization of the Schwarz method for solving the contact problem numerically are described and the results of solution of a number of problems are presented. Special attention is paid to calculations where the grids in the bodies significantly differ in steps.

Addendum Guidelines for the Prevention of Peanut Allergy in the United States

PubMed Central

Togias, Alkis; Cooper, Susan F.; Acebal, Maria L.; Assa’ad, Amal; Baker, James R.; Beck, Lisa A.; Block, Julie; Byrd-Bredbenner, Carol; Chan, Edmond S.; Eichenfield, Lawrence F.; Fleischer, David M.; Fuchs, George J.; Furuta, Glenn T.; Greenhawt, Matthew J.; Gupta, Ruchi S.; Habich, Michele; Jones, Stacie M.; Keaton, Kari; Muraro, Antonella; Plaut, Marshall; Rosenwasser, Lanny J.; Rotrosen, Daniel; Sampson, Hugh A.; Schneider, Lynda C.; Sicherer, Scott H.; Sidbury, Robert; Spergel, Jonathan; Stukus, David R.; Venter, Carina; Boyce, Joshua A.

2016-01-01

Background Food allergy is an important public health problem because it affects children and adults, it may be severe and even life-threatening, and it may be increasing in prevalence. Beginning in 2008, the National Institute of Allergy and Infectious Diseases (NIAID), working with other organizations and advocacy groups, led the development of the first clinical guidelines for the diagnosis and management of food allergy. A recent landmark clinical trial and other emerging data suggest that peanut allergy can be prevented through introduction of peanut-containing foods beginning in infancy. Objectives Prompted by these findings, along with 25 professional organizations, federal agencies, and patient advocacy groups, NIAID facilitated development of Addendum Guidelines to specifically address the prevention of peanut allergy. Results The Addendum provides three separate guidelines for infants at various risk levels for development of peanut allergy and is intended for use by a wide variety of health care providers. Topics addressed include the definition of risk categories, appropriate use of testing (specific IgE, skin prick testing, and oral food challenge) and the timing and approaches for introduction of peanut-containing foods in the health care provider’s office or at home. The Addendum Guidelines provide the background, rationale, and strength of evidence for each recommendation. Conclusions Guidelines have been developed for early introduction of peanut-containing foods into the diets of infants at various risk levels for peanut allergy. PMID:28065278

Lie-Mei symmetry and conserved quantities of the Rosenberg problem

NASA Astrophysics Data System (ADS)

Liu, Xiao-Wei; Li, Yuan-Cheng

2011-07-01

The Rosenberg problem is a typical but not too complicated problem of nonholonomic mechanical systems. The Lie—Mei symmetry and the conserved quantities of the Rosenberg problem are studied. For the Rosenberg problem, the Lie and the Mei symmetries for the equation are obtained, the conserved quantities are deduced from them and then the definition and the criterion for the Lie—Mei symmetry of the Rosenberg problem are derived. Finally, the Hojman conserved quantity and the Mei conserved quantity are deduced from the Lie—Mei symmetry.

Re-examining Definitions of Spirituality in Nursing Research

PubMed Central

Garcia, Katia; KOENIG, Harold G.

2013-01-01

Aim This article presents a discussion of the definition of spirituality and its limitations for nursing research. It proposes a definition that will capture more accurately the role of spirituality in health outcomes. Background Studies have increasingly examined spirituality in nursing research as a coping mechanism attenuating the negative impact of traumatic stress on mental health. Existing definitions of spirituality in nursing research include elements of positive emotional states (meaning, purpose, general well-being) which confound mental health outcomes. Data sources Medline and CINAHL databases were searched from 2007–2011 for research articles examining spirituality definitions and measures used by nurse researchers. Discussion An analysis of the definitions of spirituality in nursing research reveals inconsistencies and confounding mental health concepts. The authors propose defining spirituality in the context of religious involvement when conducting research, while using a broader definition of spirituality when providing spiritual care. They argue such definition provides a more appropriate method of measuring this concept in research aimed at evaluating mental health outcomes while preserving the currently used patient- defined definition of spirituality when providing spiritual care. Nursing Implications A consistent definition of spirituality in nursing research evaluating mental health outcomes, distinct from ‘spiritual care’ in a clinical setting, is essential to avoid tautological results that are meaningless. Appropriate definitions will enable nursing researchers to more clearly identify resilience mechanisms and improved health outcomes in those exposed to traumatic stress. Conclusion A definition of spirituality that focuses on religious involvement provides a more uniform and consistent measure for evaluating mental health outcomes in nursing research. PMID:23600849

Duration of Hemodialysis Following Peritoneal Dialysis Cessation in Australia and New Zealand: Proposal for a Standardized Definition of Technique Failure.

PubMed

Lan, Patrick G; Clayton, Philip A; Johnson, David W; McDonald, Stephen P; Borlace, Monique; Badve, Sunil V; Sud, Kamal; Boudville, Neil

♦ BACKGROUND: Although technique failure is a key outcome in peritoneal dialysis (PD), there is currently no agreement on a uniform definition. We explored different definitions of PD technique failure using data from the Australia and New Zealand Dialysis and Transplant (ANZDATA) Registry. ♦ METHODS: We included 16,612 incident PD patients in Australia and New Zealand from January 1998 to December 2012. Different definitions of technique failure were applied according to the minimum number of days (30, 60, 90, 180, or 365) the patient received hemodialysis after cessation of PD. ♦ RESULTS: Median technique survival varied from 2.0 years with the 30-day definition to 2.4 years with the 365-day definition. For all definitions, the most common causes of technique failure were death, followed by infectious complications. The likelihood of a patient returning to PD within 12 months of technique failure was highest in the 30-day definition (24%), and was very small when using the 180- and 365-day definitions (3% and 0.8%, respectively). Patients whose technique failed due to mechanical reasons were the most likely to return to PD (46% within 12 months using the 30-day definition). ♦ CONCLUSIONS: Both 30- and 180-day definitions have clinical relevance but offer different perspectives with very different prognostic implications for further PD. Therefore, we propose that PD technique failure be defined by a composite endpoint of death or transfer to hemodialysis using both 30-day and 180-day definitions. Copyright © 2016 International Society for Peritoneal Dialysis.

[Acute respiratory distress syndrome: a review of the Berlin definition].

PubMed

de Luis Cabezón, N; Sánchez Castro, I; Bengoetxea Uriarte, U X; Rodrigo Casanova, M P; García Peña, J M; Aguilera Celorrio, L

2014-01-01

Acute Respiratory Distress Syndrome (ARDS) is due to many causes. The absence of a universal definition up until now has led to a series of practical problems for a definitive diagnosis. The incidences of ARDS and Acute Lung Injury (ALI) vary widely in the current literature. The American-European Consensus Conference definition has been applied since its publication in 1994 and has helped to improve knowledge about ARDS. However, 18 years later, in 2011, the European Intensive Medicine Society, requested a team of international experts to meet in Berlin to review the ARDS definition. The purpose of the Berlin definition is not to use it as a prognostic tool, but to improve coherence between research and clinical practice. Copyright © 2013 Sociedad Española de Anestesiología, Reanimación y Terapéutica del Dolor. Published by Elsevier España. All rights reserved.

Intervention strategies for children: a research agenda.

PubMed Central

Roghmann, K J

1985-01-01

This background review has attempted to pinpoint problems and issues of intervention strategies to promote health among children. Some traditional interventions as they are now provided in preventive service packages, for example, are critically assessed; new interventions like neonatal intensive care, prenatal diagnosis, periconceptional vitamin supplementation, and nutritional supplementation during later pregnancy are welcome; supportive outreach services through nurse home visitors to bring proved technologies to those in greatest need, while they may not be new have shown renewed effectiveness. Recently recognized problems like the "new morbidity," and newly recognized prevention potentials like the great prospects for accident prevention, adequate school health programs, and special adolescent care programs are promising areas for preventive services effectiveness. We do not claim that a comprehensive list has been presented. Rather, an attempt has been made to challenge some traditional preventive techniques, e.g., preoperative x-rays, to stimulate thinking about new organizational forms of care delivery, and to keep an open agenda. As a result, the reader will feel a "lack of closure"--challenges without definitive answers. The general assertion is that personal preventive care is only weakly related to health and that preventive care delivery is not a simple technical problem. Let me summarize the main points. First, the lack of evidence and comprehensiveness. Other reviews of preventive care packages could have been discussed. The presentation by Fielding [164] in the Institute of Medicine's background papers to Healthy People also includes service listings for pregnant women, normal infants, preschool children, schoolchildren, and adolescents. The Lifetime Health-Monitoring program by Breslow and Somers [165] set goals and services that have already become practice patterns for large parts of the country. Many more cost-effectiveness studies of immunizations and screenings could have been cited. The point, however, is not whether technologies with the potential for prevention exist, but whether these technologies have been used and are now used effectively for that purpose, and whether their performance in the real world represents the best use of scarce and expensive resources. Scientific evidence of organized delivery effectiveness is rare.(ABSTRACT TRUNCATED AT 400 WORDS) PMID:3882632

A Monte-Carlo game theoretic approach for Multi-Criteria Decision Making under uncertainty

NASA Astrophysics Data System (ADS)

Madani, Kaveh; Lund, Jay R.

2011-05-01

Game theory provides a useful framework for studying Multi-Criteria Decision Making problems. This paper suggests modeling Multi-Criteria Decision Making problems as strategic games and solving them using non-cooperative game theory concepts. The suggested method can be used to prescribe non-dominated solutions and also can be used as a method to predict the outcome of a decision making problem. Non-cooperative stability definitions for solving the games allow consideration of non-cooperative behaviors, often neglected by other methods which assume perfect cooperation among decision makers. To deal with the uncertainty in input variables a Monte-Carlo Game Theory (MCGT) approach is suggested which maps the stochastic problem into many deterministic strategic games. The games are solved using non-cooperative stability definitions and the results include possible effects of uncertainty in input variables on outcomes. The method can handle multi-criteria multi-decision-maker problems with uncertainty. The suggested method does not require criteria weighting, developing a compound decision objective, and accurate quantitative (cardinal) information as it simplifies the decision analysis by solving problems based on qualitative (ordinal) information, reducing the computational burden substantially. The MCGT method is applied to analyze California's Sacramento-San Joaquin Delta problem. The suggested method provides insights, identifies non-dominated alternatives, and predicts likely decision outcomes.

[New TNM classification of lung tumors].

PubMed

Wittekind, C

2014-11-01

The TNM classification of lung tumors has undergone many changes in the seventh edition published in 2010. These changes reflect current data and are based on the findings of the International Association for the Study of Lung Cancer (IASLC) from 81,495 patients and concern definitions of the T and M categories as well as stage grouping. They include a better description of regional lymph nodes of the lungs based on uniformly accepted definitions by the IASLC. The changes can lead to problems in the use of the definitions and will be discussed.

[The definition of benefits: from the benefit package to the supply of services].

PubMed

Elola Somoza, J

1995-01-01

The definition of a "benefit package" of services covered by the National Health System of Spain--NHSS--raises technical and political problems. This article examines six relevant issues related with the implementation of this strategy: the instrument to define the services covered by the public system; health care expenditures; access to the services; quality; and the decision making-process. The definition of a comprehensive package of--broadly defined--services covered by the NHSS seems to be the most appropriate strategy, instead of a very detailed "catalog" of medical practices.

Filter size definition in anisotropic subgrid models for large eddy simulation on irregular grids

NASA Astrophysics Data System (ADS)

Abbà, Antonella; Campaniello, Dario; Nini, Michele

2017-06-01

The definition of the characteristic filter size to be used for subgrid scales models in large eddy simulation using irregular grids is still an unclosed problem. We investigate some different approaches to the definition of the filter length for anisotropic subgrid scale models and we propose a tensorial formulation based on the inertial ellipsoid of the grid element. The results demonstrate an improvement in the prediction of several key features of the flow when the anisotropicity of the grid is explicitly taken into account with the tensorial filter size.

On the place of fuzzy health in medical theory.

PubMed

Nordenfelt, L

2000-10-01

This commentary on Sadegh-Zadeh's article 'Fuzzy health, illness and disease,' has its focus on the philosophical background for applying fuzzy logic to medical theory. I concentrate on four issues. First, I contest some of Sadegh-Zadeh's statements on the present state of the theory of medicine, in particular with regard to assumptions ascribed to contemporary theorists. Second, I consider Sadegh-Zadeh's interesting idea that a person can have a disease to varying degrees, from not having it at all to having it completely. I argue that there are difficulties pertaining to the definition of particular diseases, which obstruct the application of this idea. The following two points concern medical semantics and principles for definition in general. I take issue with Sadegh-Zadeh's description of the correct procedure for definition. I also contest his unconditional proposal for a social definition of health, illness and disease.

Latchkey Children and School-Age Child Care: A Background Briefing. Policy Issues.

ERIC Educational Resources Information Center

Fink, Dale B.

This background briefing paper synthesizes current thinking and practice on the issue of latchkey children and school-age child care (SACC). The paper defines the problem of latchkey children; reviews related literature and programmatic responses to the problem; reports responses of four southern states; and points out implications for policy…

10 CFR 73.2 - Definitions.

Code of Federal Regulations, 2012 CFR

2012-01-01

... check includes, at a minimum, a Federal Bureau of Investigation (FBI) criminal history records check (including verification of identity based on fingerprinting), employment history, education, and personal... fingerprinting and criminal history records checks before granting access to Safeguards Information. A background...

7 CFR 4284.902 - Definitions.

Code of Federal Regulations, 2013 CFR

2013-01-01

... economic planning activities to determine the viability of a potential value-added venture, and... and sufficient to evidence the viability of the venture. It may also contain background information... analysis by a qualified consultant of the economic, market, technical, financial, and management...

7 CFR 4284.902 - Definitions.

Code of Federal Regulations, 2014 CFR

2014-01-01

... economic planning activities to determine the viability of a potential value-added venture, and... and sufficient to evidence the viability of the venture. It may also contain background information... analysis by a qualified consultant of the economic, market, technical, financial, and management...

7 CFR 4284.902 - Definitions.

Code of Federal Regulations, 2012 CFR

2012-01-01

... economic planning activities to determine the viability of a potential value-added venture, and... and sufficient to evidence the viability of the venture. It may also contain background information... analysis by a qualified consultant of the economic, market, technical, financial, and management...

Neal-Schuman Electronic Classroom Handbook.

ERIC Educational Resources Information Center

Hinchliffe, Lisa Janicke

This book discusses planning, designing, and implementing electronic classrooms. Chapters cover: (1) background, including the definition of electronic classrooms, classroom types, and justifications; (2) planning, including planners and the planning process; (3) gathering and analyzing information, including instructional needs assessment,…

WhatisKT wiki: a case study of a platform for knowledge translation terms and definitions — descriptive analysis

PubMed Central

2013-01-01

Background More than a hundred terms, often with unclear definitions and varying emphases, are used by health research and practice communities across the world who are interested in getting the best possible evidence applied (e.g., knowledge translation, implementation science, diffusion of innovations, and technology transfer). This makes finding published evidence difficult and can result in reduced, misinterpreted, or challenging interactions among professionals. Open dialogue and interaction among various professionals is needed to achieve consolidation of vocabulary. We use case report methods to describe how we sought to build an online tool to present the range of terms and facilitate the dialogue process across groups and disciplines interested in harnessing research evidence for healthcare. Methods We used a wiki platform from Wikispaces to present the problem of terminology and make a case and opportunity for collaboration on usage. Wikis are web sites where communities of users can collaborate online to build content and discuss progress. We gathered terms related to getting research into practice, sought published definitions, and posted these on the wiki (WhatisKT http://whatiskt.wikispaces.com/). We built the wiki in mid-2008 and promoted it through various groups and publications. This report describes the content of the site, our promotion efforts, use of the site, and how the site was used for collaboration up to the end of 2011. Results The WhatisKT wiki site now includes more than 120 pages. Traffic to the site has increased substantially from an average of 200 monthly visits in 2008 to 1700 in 2011. Visitors from 143 countries viewed the wiki in 2011, compared with 12 countries in 2008. However, most use has been limited to short term accesses of about 40 seconds per visit, and discussion of consolidation and solidifying terminology is conspicuously absent. Conclusions Although considerable interest exists in the terms and definitions related to getting research into practice based on increasing numbers of accesses, use of the WhatisKT wiki site for anything beyond quick lookups was minimal. Additional efforts must be directed towards increasing the level of interaction among the members of the site to encourage collaboration on term use. PMID:23347357

Fatigue after stroke: the development and evaluation of a case definition.

PubMed

Lynch, Joanna; Mead, Gillian; Greig, Carolyn; Young, Archie; Lewis, Susan; Sharpe, Michael

2007-11-01

While fatigue after stroke is a common problem, it has no generally accepted definition. Our aim was to develop a case definition for post-stroke fatigue and to test its psychometric properties. A case definition with face validity and an associated structured interview was constructed. After initial piloting, the feasibility, reliability (test-retest and inter-rater) and concurrent validity (in relation to four fatigue severity scales) were determined in 55 patients with stroke. All participating patients provided satisfactory answers to all the case definition probe questions demonstrating its feasibility For test-retest reliability, kappa was 0.78 (95% CI, 0.57-0.94, P<.01) and for inter-rater reliability kappa was 0.80 (95% CI, 0.62-0.99, P<.01). Patients fulfilling the case definition also had substantially higher fatigue scores on four fatigue severity scales (P<.001) indicating concurrent validity. The proposed case definition is feasible to administer and reliable in practice, and there is evidence of concurrent validity. It requires further evaluation in different settings.

Population Genetics of Schistosoma japonicum within the Philippines Suggest High Levels of Transmission between Humans and Dogs

PubMed Central

Rudge, James W.; Carabin, Hélène; Balolong, Ernesto; Tallo, Veronica; Shrivastava, Jaya; Lu, Da-Bing; Basáñez, María-Gloria; Olveda, Remigio; McGarvey, Stephen T.; Webster, Joanne P.

2008-01-01

Background Schistosoma japonicum, which remains a major public health problem in the Philippines and mainland China, is the only schistosome species for which zoonotic transmission is considered important. While bovines are suspected as the main zoonotic reservoir in parts of China, the relative contributions of various non-human mammals to S. japonicum transmission in the Philippines remain to be determined. We examined the population genetics of S. japonicum in the Philippines in order to elucidate transmission patterns across host species and geographic areas. Methodology/Principal Findings S. japonicum miracidia (hatched from eggs within fecal samples) from humans, dogs, pigs and rats, and cercariae shed from snail-intermediate hosts, were collected across two geographic areas of Samar Province. Individual isolates were then genotyped using seven multiplexed microsatellite loci. Wright's FST values and phylogenetic trees calculated for parasite populations suggest a high frequency of parasite gene-flow across definitive host species, particularly between dogs and humans. Parasite genetic differentiation between areas was not evident at the definitive host level, possibly suggesting frequent import and export of infections between villages, although there was some evidence of geographic structuring at the snail–intermediate host level. Conclusions/Significance These results suggest very high levels of transmission across host species, and indicate that the role of dogs should be considered when planning control programs. Furthermore, a regional approach to treatment programs is recommended where human migration is extensive. PMID:19030225

Endoscopic Findings and Clinical Outcomes in Ventricular Assist Device Recipients with Gastrointestinal Bleeding

PubMed Central

Elmunzer, B. Joseph; Padhya, Kunjali T.; Lewis, Jason J.; Rangnekar, Amol S.; Saini, Sameer D.; Eswaran, Shanti L.; Scheiman, James M.; Pagani, Francis D.; Haft, Jonathan W.; Waljee, Akbar K.

2015-01-01

Background Gastrointestinal bleeding (GIB) is an important clinical problem in recipients of ventricular assist devices (VAD), although data pertaining to the endoscopic evaluation and management of this complication are limited in the medical literature. Aims We sought to identify the most common endoscopic findings in VAD recipients with GIB, and to better define the diagnostic and therapeutic utility of endosopy for this patient population. Methods Twenty-six subjects with VAD and overt GIB were retrospectively identified. Clinical and endoscopic data were abstracted for each subject on to standardized forms in duplicate and independent fashion. Raw data and descriptive statistics were reported. Results Non-peptic vascular lesions were the most common cause of GIB. A definitive cause of bleeding was identified by endoscopy in almost 60% of subjects. Endoscopic hemostasis was achieved in 14/15 patients in whom bleeding did not stop spontaneously. Rebleeding occurred in 50% of subjects and was successfully retreated or stopped spontaneously in all cases. Colonoscopy did not establish a definitive diagnosis or deliver hemostatic therapy in any case. Conclusions Vascular malformations account for the overwhelming majority of bleeding lesions in VAD patients with GIB. Endoscopy seems to be a safe and effective tool for diagnosing, risk stratifying, and treating this patient population, although multiple endoscopies may be necessary before therapeutic success, and the incidence of rebleeding is high. A prospective multi-center registry is necessary to establish evidence-based management algorithms for VAD recipients with GIB. PMID:21792619

Anticipation Guides: Reading for Mathematics Understanding

ERIC Educational Resources Information Center

Adams, Anne E.; Pegg, Jerine; Case, Melissa

2015-01-01

With the acceptance by many states of the Common Core State Standards for Mathematics, new emphasis is being placed on students' ability to engage in mathematical practices such as understanding problems (including word problems), reading and critiquing arguments, and making explicit use of definitions (CCSSI 2010). Engaging students in…

Conducting Research in School Systems.

ERIC Educational Resources Information Center

Schutz, Richard E.

The problems of conducting research in schools are discussed. Solutions to social psychological problems are suggested, and an improved design for research is recommended. Clearer definition of terminology is recommended to avoid the confusion that can result from ambiguous terms. A research design should be adaptable to the administrative and…

The Metric System. [Student Worksheets for Vocational Agricultural Courses].

ERIC Educational Resources Information Center

Jewell, Larry R.

This learning module provides students with practice in applying mathematical operations to vocational agriculture. The module consists of unit objectives, definitions, information, problems to solve, worksheets suitable for various levels of vocational agriculture instruction, and answer keys for the problems and worksheets. This module, which…

On Schrödinger's bridge problem

NASA Astrophysics Data System (ADS)

Friedland, S.

2017-11-01

In the first part of this paper we generalize Georgiou-Pavon's result that a positive square matrix can be scaled uniquely to a column stochastic matrix which maps a given positive probability vector to another given positive probability vector. In the second part we prove that a positive quantum channel can be scaled to another positive quantum channel which maps a given positive definite density matrix to another given positive definite density matrix using Brouwer's fixed point theorem. This result proves the Georgiou-Pavon conjecture for two positive definite density matrices, made in their recent paper. We show that the fixed points are unique for certain pairs of positive definite density matrices. Bibliography: 15 titles.

Definition of current density in the presence of a non-local potential.

PubMed

Li, Changsheng; Wan, Langhui; Wei, Yadong; Wang, Jian

2008-04-16

In the presence of a non-local potential arising from electron-electron interaction, the conventional definition of current density J(c) = (e/2m)([(p-eA)ψ](*)ψ-ψ(*)[(p-eA)ψ]) cannot satisfy the condition of current conservation, i.e., [Formula: see text] in the steady state. In order to solve this problem, we give a new definition of current density including the contribution due to the non-local potential. We show that the current calculated based on the new definition of current density conserves the current and is the same as that obtained from the Landauer-Büttiker formula. Examples are given to demonstrate our results.

Violence: a glossary

PubMed Central

Rutherford, Alison; Zwi, Anthony B; Grove, Natalie J; Butchart, Alexander

2007-01-01

Violence has been explicitly identified as a significant public health problem. This glossary clarifies widely used definitions and concepts of violence within the public health field, building on those promoted through the 2002 World Report on Violence and Health. We provide definitions and concepts that can be usefully applied to identify points for public health intervention to prevent the social and health impacts of violence. PMID:17630364

A Special Application of Absolute Value Techniques in Authentic Problem Solving

ERIC Educational Resources Information Center

Stupel, Moshe

2013-01-01

There are at least five different equivalent definitions of the absolute value concept. In instances where the task is an equation or inequality with only one or two absolute value expressions, it is a worthy educational experience for learners to solve the task using each one of the definitions. On the other hand, if more than two absolute value…

Problems of Policing Plagiarism and Cheating in University Institutions Due to Incomplete or Inconsistent Definitions

ERIC Educational Resources Information Center

Soiferman, L. Karen

2016-01-01

The purpose of this article was to gain an understanding of the definitions of plagiarism, and cheating that are used in the literature, in institutions, and by students. The information was gathered from a literature review, from university and college websites, and from an informal sampling of students from five different first-year classes. The…

Empirical support for the definition of a complex trauma event in children and adolescents.

PubMed

Wamser-Nanney, Rachel; Vandenberg, Brian R

2013-12-01

Complex trauma events have been defined as chronic, interpersonal traumas that begin early in life (Cook, Blaustein, Spinazzola, & van der Kolk, 2003). The complex trauma definition has been examined in adults, as indicated by the Diagnostic and Statistical Manual of Mental Disorders (4th ed.; DSM-IV) field trial; however, this research was lacking in child populations. The symptom presentations of complexly traumatized children were contrasted with those exposed to other, less severe trauma ecologies that met 1 or 2 features of the complex trauma definition. Included in this study were 346 treatment-seeking children and adolescents (ages 3–18 years) who had experienced atraumatic event. Results indicated that child survivors of complex trauma presented with higher levels of generalized behavior problems and trauma-related symptoms than those who experienced (a) acute noninterpersonal trauma, (b) chronic interpersonal trauma that begins later in life, and (c) acute interpersonal trauma. Greater levels of behavioral problems were observed in children exposed to complex trauma as compared to those who experienced a traumatic event that begins early in life. These results provide support for the complex trauma event definition and suggest the need for a complex trauma diagnostic construct for children and adolescents.

On the background independence of two-dimensional topological gravity

NASA Astrophysics Data System (ADS)

Imbimbo, Camillo

1995-04-01

We formulate two-dimensional topological gravity in a background covariant Lagrangian framework. We derive the Ward identities which characterize the dependence of physical correlators on the background world-sheet metric defining the gauge-slice. We point out the existence of an "anomaly" in Ward identitites involving correlators of observables with higher ghost number. This "anomaly" represents an obstruction for physical correlators to be globally defined forms on moduli space which could be integrated in a background independent way. Starting from the anomalous Ward identities, we derive "descent" equations whose solutions are cocycles of the Lie algebra of the diffeomorphism group with values in the space of local forms on the moduli space. We solve the descent equations and provide explicit formulas for the cocycles, which allow for the definition of background independent integrals of physical correlators on the moduli space.

ADULT LITERACY--PROGRESS AND PROBLEMS.

ERIC Educational Resources Information Center

CURRY, ROBERT L.

THE PROBLEMS CONNECTED WITH THE ELIMINATION OF ILLITERACY IN THE UNITED STATES ARE DISCUSSED IN AN EXAMINATION OF ADULT LITERACY TODAY. THE EFFECT WHICH ILLITERACY HAS ON THE ABILITY OF THE INDIVIDUAL TO ACQUIRE AND RETAIN A JOB IS EXPLAINED, AS ARE THE ECONOMIC, PHYSICAL, MENTAL, EMOTIONAL, AND MORAL REPERCUSSIONS OF ILLITERACY. DEFINITIONS OF…

Definition of the Engineering Method.

ERIC Educational Resources Information Center

Koen, Billy Vaughn

In an effort to more clearly define the engineering method, this document attempts to draw distinctions between engineering and science. Part I, "Some Thoughts on Engineering," discusses strategies that engineers employ to solve problems, and the characteristics of the types of engineering problems. Part II, "The Principal Rule of the Engineering…

America's Competitive Crisis: Confronting the New Reality.

ERIC Educational Resources Information Center

Council on Competitiveness, Washington, DC.

Efforts to restore America's competitive position must proceed from an accurate definition of what competitiveness is. The U.S. competitiveness problem has three dimensions: long-standing structural problems, macroeconomic policies, and the trade and economic policies of foreign countries. The long-term erosion of U.S. competitiveness is suggested…

Optimizing Value and Avoiding Problems in Building Schools.

ERIC Educational Resources Information Center

Brevard County School Board, Cocoa, FL.

This report describes school design and construction delivery processes used by the School Board of Brevard County (Cocoa, Florida) that help optimize value, avoid problems, and eliminate the cost of maintaining a large facility staff. The project phases are examined from project definition through design to construction. Project delivery…

A Performance-Based Method of Student Evaluation

ERIC Educational Resources Information Center

Nelson, G. E.; And Others

1976-01-01

The Problem Oriented Medical Record (which allows practical definition of the behavioral terms thoroughness, reliability, sound analytical sense, and efficiency as they apply to the identification and management of patient problems) provides a vehicle to use in performance based type evaluation. A test-run use of the record is reported. (JT)

Exceptional Children Conference Papers: Behavioral and Emotional Problems.

ERIC Educational Resources Information Center

Council for Exceptional Children, Arlington, VA.

Four of the seven conference papers treating behavioral and emotional problems concern the Conceptual Project, an attempt to provide definition and evaluation of conceptual models of the various theories of emotional disturbance and their basic assumptions, and to provide training packages based on these materials. The project is described in…

Teacher Pedagogical Constructions: A Reconfiguration of Pedagogical Content Knowledge

ERIC Educational Resources Information Center

Hashweh, Maher Z.

2005-01-01

A brief review of the history of pedagogical content knowledge reveals various definitions and conceptualizations of the construct, as well as some conceptual problems. A new conceptualization--teacher pedagogical constructions--is offered to address some of the problems associated with PCK. Seven assertions that comprise the new conceptualization…

Workshop on problem areas associated with developing carcinogen guidelines

DOE Office of Scientific and Technical Information (OSTI.GOV)

Not Available

1984-06-01

A workshop was conducted to discuss problem areas associated with developing carcinogen guidelines. Session topics included (1) definition of a carcinogen for regulatory purposes; (2) potency; (3) risk assessment; (4) uncertainties; (5) de minimis quantity; and (6) legal and regulatory issues. Separate abstracts have been prepared for individual papers. (ACR)

[Ethics in clinical research: contextualizing and reductionist problem definitions, forms of ethical reflection and some particular implications].

PubMed

Roelcke, Volker

2003-12-01

The present paper starts off with a short outline of issues, conflicts, and goals of ethical reflection about clinical research. It is then argued that non-reductionist, patient-centred ethics should critically reflect on medically preformed problem definitions, ways of problem solution, and evaluations. The shortcomings of such preformed perceptions and interpretations are illustrated using the examples of dementia research, and the complexities of the notion of risk. A more comprehensive approach including the perceptions, interpretations, and evaluations of the patients' perspective necessitates a form of ethical reflection which takes into account the social and cultural contexts of clinical research, and which therefore relies on concepts and methods of the cultural sciences (in particular history, sociology, and cultural anthropology). The decision for a reductionist, or for a contextualising mode of ethical reflection represents in itself a value decision and needs to be explicitly justified.

Central Configurations of the Curved N-Body Problem

NASA Astrophysics Data System (ADS)

Diacu, Florin; Stoica, Cristina; Zhu, Shuqiang

2018-06-01

We consider the N-body problem of celestial mechanics in spaces of nonzero constant curvature. Using the concept of effective potential, we define the moment of inertia for systems moving on spheres and hyperbolic spheres and show that we can recover the classical definition in the Euclidean case. After proving some criteria for the existence of relative equilibria, we find a natural way to define the concept of central configuration in curved spaces using the moment of inertia and show that our definition is formally similar to the one that governs the classical problem. We prove that, for any given point masses on spheres and hyperbolic spheres, central configurations always exist. We end with results concerning the number of central configurations that lie on the same geodesic, thus extending the celebrated theorem of Moulton to hyperbolic spheres and pointing out that it has no straightforward generalization to spheres, where the count gets complicated even for two bodies.

A continuum of sociotechnical requirements for patient-centered problem lists.

PubMed

Collins, Sarah; Tsivkin, Kira; Hongsermeier, Tonya; Dubois, David; Nandigam, Hari Krishna; Rocha, Roberto A

2013-01-01

Specific requirements for patient-centered health information technology remain ill-defined. To create operational definitions of patient-centered problem lists, we propose a continuum of sociotechnical requirements with five stages: 1) Intradisciplinary Care Planning: Viewing and searching for problems by discipline; 2) Multi-disciplinary Care Planning: Categorizing problem states to meet discipline-specific needs; 3) Interdisciplinary Care Planning: Sharing and linking problems between disciplines; 4) Integrated and Coordinated Care Planning: Associating problems with assessments, tasks, interventions and outcomes across disciplines for coordination, knowledge development, and reporting; and 5) Patient-Centered Care Planning: Engaging patients in identification of problems and maintenance of their problem list.

Study designs appropriate for the workplace.

PubMed

Hogue, C J

1986-01-01

Carlo and Hearn have called for "refinement of old [epidemiologic] methods and an ongoing evaluation of where methods fit in the overall scheme as we address the multiple complexities of reproductive hazard assessment." This review is an attempt to bring together the current state-of-the-art methods for problem definition and hypothesis testing available to the occupational epidemiologist. For problem definition, meta analysis can be utilized to narrow the field of potential causal hypotheses. Passive active surveillance may further refine issues for analytic research. Within analytic epidemiology, several methods may be appropriate for the workplace setting. Those discussed here may be used to estimate the risk ratio in either a fixed or dynamic population.

Disease-mongering through clinical trials.

PubMed

González-Moreno, María; Saborido, Cristian; Teira, David

2015-06-01

Our goal in this paper is to articulate a precise concept of at least a certain kind of disease-mongering, showing how pharmaceutical marketing can commercially exploit certain diseases when their best definition is given through the success of a treatment in a clinical trial. We distinguish two types of disease-mongering according to the way they exploit the definition of the trial population for marketing purposes. We argue that behind these two forms of disease-mongering there are two well-known problems in the statistical methodology of clinical trials (the reference class problem and the distinction between statistical and clinical significance). Overcoming them is far from simple. Copyright © 2015 Elsevier Ltd. All rights reserved.

Differential Relations between Facets of Complex Problem Solving and Students' Immigration Background

ERIC Educational Resources Information Center

Sonnleitner, Philipp; Brunner, Martin; Keller, Ulrich; Martin, Romain

2014-01-01

Whereas the assessment of complex problem solving (CPS) has received increasing attention in the context of international large-scale assessments, its fairness in regard to students' cultural background has gone largely unexplored. On the basis of a student sample of 9th-graders (N = 299), including a representative number of immigrant students (N…

[Mental health in adolescents in Germany: A comparison with regard to migration background and country of origin].

PubMed

Brettschneider, Anna-Kristin; Hölling, H; Schlack, R; Ellert, U

2015-04-01

Many children and adolescents in Germany grow up in families with a migration background. Different cultural, religious, and linguistic backgrounds have an influence on their behavior in various ways. Health status can be affected both negatively and positively by a migration background. The aim of this study was to analyze associations between migration background and self-reported psychological problems. In addition, it was tested whether country of origin had a differential effect on the associations found. Because of its migration-specific approach, the baseline survey (2003-2006) of the nationwide German Health Interview and Examination Survey for Children and Adolescents (KiGGS) offers a solid basis for migrant-specific analyses. Self-reported mental health problems were assessed using the Strengths and Difficulties Questionnaire (SDQ), which was completed by 6,719 adolescents aged 11-17 years. Adolescents with a two-sided migration background (i.e., both parents) reported higher SDQ total difficulties scores compared with adolescents without a migration background (16.9 vs 11.5%) or those with a one-sided migration background (16.9 vs 11.3%). Adolescents with a Turkish background had higher odds (boys: OR 2.0; 95%CI 1.3-3.2; girls: OR 2.0; 95%CI 1.2-3.4) of reporting mental health problems than adolescents without a migration background. Also, girls with a migration background from Western Europe, the USA or Canada had higher odds (OR 2.2; 95%CI 1.3-3.6). In some cases, adjusting for socioeconomic status led to insignificant associations with regard to the country of origin. The findings underline the importance of migrant-specific and culture-sensitive prevention, which also takes the environment and culture-specific characteristics into account.

Scattering and bound states of spinless particles in a mixed vector-scalar smooth step potential

DOE Office of Scientific and Technical Information (OSTI.GOV)

Garcia, M.G.; Castro, A.S. de

2009-11-15

Scattering and bound states for a spinless particle in the background of a kink-like smooth step potential, added with a scalar uniform background, are considered with a general mixing of vector and scalar Lorentz structures. The problem is mapped into the Schroedinger-like equation with an effective Rosen-Morse potential. It is shown that the scalar uniform background present subtle and trick effects for the scattering states and reveals itself a high-handed element for formation of bound states. In that process, it is shown that the problem of solving a differential equation for the eigenenergies is transmuted into the simpler and moremore » efficient problem of solving an irrational algebraic equation.« less

Update of the Case Definitions for Population-Based Surveillance of Periodontitis

PubMed Central

Eke, Paul I.; Page, Roy C.; Wei, Liang; Thornton-Evans, Gina; Genco, Robert J.

2018-01-01

Background This report adds a new definition for mild periodontitis that allows for better descriptions of the overall prevalence of periodontitis in populations. In 2007, the Centers for Disease Control and Prevention in partnership with the American Academy of Periodontology developed and reported standard case definitions for surveillance of moderate and severe periodontitis based on measurements of probing depth (PD) and clinical attachment loss (AL) at interproximal sites. However, combined cases of moderate and severe periodontitis are insufficient to determine the total prevalence of periodontitis in populations. Methods The authors proposed a definition for mild periodontitis as ≥2 interproximal sites with AL ≥3 mm and ≥2 interproximal sites with PD ≥4 mm (not on the same tooth) or one site with PD ≥5 mm. The effect of the proposed definition on the total burden of periodontitis was assessed in a convenience sample of 456 adults ≥35 years old and compared with other previously reported definitions for similar categories of periodontitis. Results Addition of mild periodontitis increases the total prevalence of periodontitis by ≈31% in this sample when compared with the prevalence of severe and moderate disease. Conclusion Total periodontitis using the case definitions in this study should be based on the sum of mild, moderate, and severe periodontitis. PMID:22420873

Bariatric surgery for obese children and adolescents: a review of the moral challenges

PubMed Central

2013-01-01

Background Bariatric surgery for children and adolescents is becoming widespread. However, the evidence is still scarce and of poor quality, and many of the patients are too young to consent. This poses a series of moral challenges, which have to be addressed both when considering bariatric surgery introduced as a health care service and when deciding for treatment for young individuals. A question based (Socratic) approach is applied to reveal underlying moral issues that can be relevant to an open and transparent decision making process. Discussion A wide range of moral issues with bariatric surgery for children and adolescents is identified in the literature. There is a moral imperative to help obese minors avoiding serious health problems, but there is little high quality evidence on safety, outcomes, and cost-effectiveness for bariatric surgery in this group. Lack of maturity and family relations poses a series of challenges with autonomy, informed consent, assent, and assessing the best interest of children and adolescents. Social aspects of obesity, such as medicalization, prejudice, and discrimination, raise problems with justice and trust in health professionals. Conceptual issues, such as definition of obesity and treatment end-points, present moral problems. Hidden interests of patients, parents, professionals, industry, and society need to be revealed. Summary Performing bariatric surgery for obese children and adolescents in order to discipline their behavior warrants reflection and caution. More evidence on outcomes is needed to be able to balance benefits and risks, to provide information for a valid consent or assent, and to advise minors and parents. PMID:23631445

Diagrams Benefit Symbolic Problem-Solving

ERIC Educational Resources Information Center

Chu, Junyi; Rittle-Johnson, Bethany; Fyfe, Emily R.

2017-01-01

Background: The format of a mathematics problem often influences students' problem-solving performance. For example, providing diagrams in conjunction with story problems can benefit students' understanding, choice of strategy, and accuracy on story problems. However, it remains unclear whether providing diagrams in conjunction with symbolic…

Regulatory impediments jeopardizing the conduct of clinical trials in Europe funded by the National Institutes of Health

PubMed Central

Neaton, James D; Babiker, Abdel; Bohnhorst, Mark; Darbyshire, Janet; Denning, Eileen; Frishman, Arnie; Grarup, Jesper; Larson, Gregg; Lundgren, Jens

2011-01-01

Background A number of reports have highlighted problems of conducting publicly funded trials in Europe as a consequence of the European Union (EU) Clinical Trials Directive. The impact of the EU Directive on multi-national trials, which include sites in Europe that are funded by the US National Institutes of Health (NIH) have not been described. Methods Four problems in the conduct of two international HIV treatment trials funded by NIH in the EU are described: (1) conflicting regulations on the continuing review of protocols by Institutional Review Boards/Research Ethics Committees; (2) US regulations requiring Federalwide Assurances for sites which are only partially funded by NIH; (3) EU guidance on the designation of studies as a trial of an investigational medicinal product; and (4) EU guidance on trial sponsorship and the requirements for insurance and indemnification. Following the description of the problems, recommendations for improving global collaborations are made to the US Office of Human Research Protections, to NIH, and to the EU and its Member States. Results A lack of harmonization of regulations at multiple levels caused enrollment in one study to be interrupted for several months and delayed for one year the initiation of another study aimed at obtaining definitive evidence to guide the timing of the initiation of antiretroviral therapy for individuals infected with HIV. The delays and the purchase of insurance resulted in substantial increases in trial costs and caused substantial disruption at clinical sites among staff and study participants. Limitations The problems cited and recommendations made pertain to trials funded by NIH and conducted by sites in the EU. There are many other challenges in the conduct of international research, public and private, that global harmonization would alleviate. Conclusions Disharmony, at multiple levels, in international regulations and guidelines is stifling publicly funded global research. International scientific organizations and government groups should make the documentation and solution of these problems a priority. PMID:20729252

Insight and analysis problem solving in microbes to machines.

PubMed

Clark, Kevin B

2015-11-01

A key feature for obtaining solutions to difficult problems, insight is oftentimes vaguely regarded as a special discontinuous intellectual process and/or a cognitive restructuring of problem representation or goal approach. However, this nearly century-old state of art devised by the Gestalt tradition to explain the non-analytical or non-trial-and-error, goal-seeking aptitude of primate mentality tends to neglect problem-solving capabilities of lower animal phyla, Kingdoms other than Animalia, and advancing smart computational technologies built from biological, artificial, and composite media. Attempting to provide an inclusive, precise definition of insight, two major criteria of insight, discontinuous processing and problem restructuring, are here reframed using terminology and statistical mechanical properties of computational complexity classes. Discontinuous processing becomes abrupt state transitions in algorithmic/heuristic outcomes or in types of algorithms/heuristics executed by agents using classical and/or quantum computational models. And problem restructuring becomes combinatorial reorganization of resources, problem-type substitution, and/or exchange of computational models. With insight bounded by computational complexity, humans, ciliated protozoa, and complex technological networks, for example, show insight when restructuring time requirements, combinatorial complexity, and problem type to solve polynomial and nondeterministic polynomial decision problems. Similar effects are expected from other problem types, supporting the idea that insight might be an epiphenomenon of analytical problem solving and consequently a larger information processing framework. Thus, this computational complexity definition of insight improves the power, external and internal validity, and reliability of operational parameters with which to classify, investigate, and produce the phenomenon for computational agents ranging from microbes to man-made devices. Copyright © 2015 Elsevier Ltd. All rights reserved.

The modulating impact of illumination and background radiation on 8 Hz-induced infrasound effect on physicochemical properties of physiolagical solution.

PubMed

Baghdasaryan, Naira; Mikayelyan, Yerazik; Barseghyan, Sedrak; Dadasyan, Erna; Ayrapetyan, Sinerik

2012-12-01

At present, when the level of background ionizing radiation is increasing in a number of world locations, the problem of the study of biological effect of high background radiation becomes one of the extremely important global problems in modern life sciences. The modern research in biophysics proved that water is a most essential target, through which the biological effects of ionizing and non-ionizing radiations are realized. Therefore, there is no doubt about the strong dependency of non-ionizing radiation-induced effect on the level of background radiation. Findings have shown that illumination and background radiation have a strong modulation effect on infrasound-induced impacts on water physicochemical properties, which could also have appropriate effect on living organisms.

Local (L, [epsilon])-Approximation of a Function of Single Variable: An Alternative Way to Define Limit

ERIC Educational Resources Information Center

Bokhari, M. A.; Yushau, B.

2006-01-01

At the start of a freshman calculus course, many students conceive the classical definition of limit as the most problematic part of calculus. They not only find it difficult to understand, but also consider it of no use while solving most of the limit problems and therefore, skip it. This paper reformulates the rigorous definition of limit, which…

A Reflection on the Past Trends in the Delivery of Literacy Education in Zambia: Challenges and Prospects

ERIC Educational Resources Information Center

Luchembe, Musonda

2016-01-01

This paper examines the different views about the definition of "literacy" and how it is applied in the Zambian context. It argues that the absence of a contextual definition of literacy or illiteracy has raised some doubt on the magnitude of the problem and the extent to which success has been achieved through various literacy…

Solving a Hamiltonian Path Problem with a bacterial computer

PubMed Central

Baumgardner, Jordan; Acker, Karen; Adefuye, Oyinade; Crowley, Samuel Thomas; DeLoache, Will; Dickson, James O; Heard, Lane; Martens, Andrew T; Morton, Nickolaus; Ritter, Michelle; Shoecraft, Amber; Treece, Jessica; Unzicker, Matthew; Valencia, Amanda; Waters, Mike; Campbell, A Malcolm; Heyer, Laurie J; Poet, Jeffrey L; Eckdahl, Todd T

2009-01-01

Background The Hamiltonian Path Problem asks whether there is a route in a directed graph from a beginning node to an ending node, visiting each node exactly once. The Hamiltonian Path Problem is NP complete, achieving surprising computational complexity with modest increases in size. This challenge has inspired researchers to broaden the definition of a computer. DNA computers have been developed that solve NP complete problems. Bacterial computers can be programmed by constructing genetic circuits to execute an algorithm that is responsive to the environment and whose result can be observed. Each bacterium can examine a solution to a mathematical problem and billions of them can explore billions of possible solutions. Bacterial computers can be automated, made responsive to selection, and reproduce themselves so that more processing capacity is applied to problems over time. Results We programmed bacteria with a genetic circuit that enables them to evaluate all possible paths in a directed graph in order to find a Hamiltonian path. We encoded a three node directed graph as DNA segments that were autonomously shuffled randomly inside bacteria by a Hin/hixC recombination system we previously adapted from Salmonella typhimurium for use in Escherichia coli. We represented nodes in the graph as linked halves of two different genes encoding red or green fluorescent proteins. Bacterial populations displayed phenotypes that reflected random ordering of edges in the graph. Individual bacterial clones that found a Hamiltonian path reported their success by fluorescing both red and green, resulting in yellow colonies. We used DNA sequencing to verify that the yellow phenotype resulted from genotypes that represented Hamiltonian path solutions, demonstrating that our bacterial computer functioned as expected. Conclusion We successfully designed, constructed, and tested a bacterial computer capable of finding a Hamiltonian path in a three node directed graph. This proof-of-concept experiment demonstrates that bacterial computing is a new way to address NP-complete problems using the inherent advantages of genetic systems. The results of our experiments also validate synthetic biology as a valuable approach to biological engineering. We designed and constructed basic parts, devices, and systems using synthetic biology principles of standardization and abstraction. PMID:19630940

Surrogate Endpoint Evaluation: Principal Stratification Criteria and the Prentice Definition.

PubMed

Gilbert, Peter B; Gabriel, Erin E; Huang, Ying; Chan, Ivan S F

2015-09-01

A common problem of interest within a randomized clinical trial is the evaluation of an inexpensive response endpoint as a valid surrogate endpoint for a clinical endpoint, where a chief purpose of a valid surrogate is to provide a way to make correct inferences on clinical treatment effects in future studies without needing to collect the clinical endpoint data. Within the principal stratification framework for addressing this problem based on data from a single randomized clinical efficacy trial, a variety of definitions and criteria for a good surrogate endpoint have been proposed, all based on or closely related to the "principal effects" or "causal effect predictiveness (CEP)" surface. We discuss CEP-based criteria for a useful surrogate endpoint, including (1) the meaning and relative importance of proposed criteria including average causal necessity (ACN), average causal sufficiency (ACS), and large clinical effect modification; (2) the relationship between these criteria and the Prentice definition of a valid surrogate endpoint; and (3) the relationship between these criteria and the consistency criterion (i.e., assurance against the "surrogate paradox"). This includes the result that ACN plus a strong version of ACS generally do not imply the Prentice definition nor the consistency criterion, but they do have these implications in special cases. Moreover, the converse does not hold except in a special case with a binary candidate surrogate. The results highlight that assumptions about the treatment effect on the clinical endpoint before the candidate surrogate is measured are influential for the ability to draw conclusions about the Prentice definition or consistency. In addition, we emphasize that in some scenarios that occur commonly in practice, the principal strata sub-populations for inference are identifiable from the observable data, in which cases the principal stratification framework has relatively high utility for the purpose of effect modification analysis, and is closely connected to the treatment marker selection problem. The results are illustrated with application to a vaccine efficacy trial, where ACN and ACS for an antibody marker are found to be consistent with the data and hence support the Prentice definition and consistency.

Surrogate Endpoint Evaluation: Principal Stratification Criteria and the Prentice Definition

PubMed Central

Gilbert, Peter B.; Gabriel, Erin E.; Huang, Ying; Chan, Ivan S.F.

2015-01-01

A common problem of interest within a randomized clinical trial is the evaluation of an inexpensive response endpoint as a valid surrogate endpoint for a clinical endpoint, where a chief purpose of a valid surrogate is to provide a way to make correct inferences on clinical treatment effects in future studies without needing to collect the clinical endpoint data. Within the principal stratification framework for addressing this problem based on data from a single randomized clinical efficacy trial, a variety of definitions and criteria for a good surrogate endpoint have been proposed, all based on or closely related to the “principal effects” or “causal effect predictiveness (CEP)” surface. We discuss CEP-based criteria for a useful surrogate endpoint, including (1) the meaning and relative importance of proposed criteria including average causal necessity (ACN), average causal sufficiency (ACS), and large clinical effect modification; (2) the relationship between these criteria and the Prentice definition of a valid surrogate endpoint; and (3) the relationship between these criteria and the consistency criterion (i.e., assurance against the “surrogate paradox”). This includes the result that ACN plus a strong version of ACS generally do not imply the Prentice definition nor the consistency criterion, but they do have these implications in special cases. Moreover, the converse does not hold except in a special case with a binary candidate surrogate. The results highlight that assumptions about the treatment effect on the clinical endpoint before the candidate surrogate is measured are influential for the ability to draw conclusions about the Prentice definition or consistency. In addition, we emphasize that in some scenarios that occur commonly in practice, the principal strata sub-populations for inference are identifiable from the observable data, in which cases the principal stratification framework has relatively high utility for the purpose of effect modification analysis, and is closely connected to the treatment marker selection problem. The results are illustrated with application to a vaccine efficacy trial, where ACN and ACS for an antibody marker are found to be consistent with the data and hence support the Prentice definition and consistency. PMID:26722639

Exceedance probability map: a tool helping the definition of arsenic Natural Background Level (NBL) within the Drainage Basin to the Venice Lagoon (NE Italy)

NASA Astrophysics Data System (ADS)

Dalla Libera, Nico; Fabbri, Paolo; Mason, Leonardo; Piccinini, Leonardo; Pola, Marco

2017-04-01

Arsenic groundwater contamination affects worldwide shallower groundwater bodies. Starting from the actual knowledges around arsenic origin into groundwater, we know that the major part of dissolved arsenic is naturally occurring through the dissolution of As-bearing minerals and ores. Several studies on the shallow aquifers of both the regional Venetian Plain (NE Italy) and the local Drainage Basin to the Venice Lagoon (DBVL) show local high arsenic concentration related to peculiar geochemical conditions, which drive arsenic mobilization. The uncertainty of arsenic spatial distribution makes difficult both the evaluation of the processes involved in arsenic mobilization and the stakeholders' decision about environmental management. Considering the latter aspect, the present study treats the problem of the Natural Background Level (NBL) definition as the threshold discriminating the natural contamination from the anthropogenic pollution. Actually, the UE's Directive 2006/118/EC suggests the procedures and criteria to set up the water quality standards guaranteeing a healthy status and reversing any contamination trends. In addition, the UE's BRIDGE project proposes some criteria, based on the 90th percentile of the contaminant's concentrations dataset, to estimate the NBL. Nevertheless, these methods provides just a statistical NBL for the whole area without considering the spatial variation of the contaminant's concentration. In this sense, we would reinforce the NBL concept using a geostatistical approach, which is able to give some detailed information about the distribution of arsenic concentrations and unveiling zones with high concentrations referred to the Italian drinking water standard (IDWS = 10 µg/liter). Once obtained the spatial information about arsenic distribution, we can apply the 90th percentile methods to estimate some Local NBL referring to every zones with arsenic higher than IDWS. The indicator kriging method was considered because it estimates the spatial distribution of the exceedance probabilities respect some pre-defined thresholds. This approach is largely mentioned in literature to face similar environmental problems. To test the validity of the procedure, we used the dataset from "A.Li.Na" project (founded by the Regional Environmental Agency) that defined regional NBLs of As, Fe, Mn and NH4+ into DBVL's groundwater. Primarily, we defined two thresholds corresponding respectively to the IDWS and the median of the data over the IDWS. These values were decided basing on the dataset's statistical structure and the quality criteria of the GWD 2006/118/EC. Subsequently, we evaluated the spatial distribution of the probability to exceed the defined thresholds using the Indicator kriging. The results highlight different zones with high exceedance probability ranging from 75% to 95% respect both the IDWS and the median value. Considering the geological setting of the DBVL, these probability values correspond with the occurrence of both organic matter and reducing conditions. In conclusion, the spatial prediction of the exceedance probability could be useful to define the areas in which estimate the local NBLs, enhancing the procedure of NBL definition. In that way, the NBL estimation could be more realistic because it considers the spatial distribution of the studied contaminant, distinguishing areas with high natural concentrations from polluted ones.

A qualitative approach to assessing work ability.

PubMed

Tengland, Per-Anders

2013-01-01

We often need to be able to assess the extent to which individuals have or lack work ability. For this we need instruments. Most of the instruments available have flaws. They either lack validity or they use roundabout methods when collecting information about the individual's work ability. The aim of this paper is to present a conceptual model for constructing a questionnaire that can be used for assessing work ability. The methods used are philosophical, i.e. analytical and deductive. A conceptual theory is provided, and based on the resulting definition of the concept of "work ability" conclusions are drawn regarding how to assess work ability. When constructing quantitative instruments, we can increase validity through using a more strict definition of work ability. However, such an approach will only solve some of the problems noted above. The proposal is, instead, to create a qualitative questionnaire, founded on a definition of "work ability", which focuses on the concrete problems concerning the work ability of the individual. Finally, a sketch of such an instrument is provided, with questions covering all the relevant aspects of work ability. The qualitative questionnaire proposed is believed to be superior to more traditional (quantitative) instruments for assessing a person's work ability, as well as for finding solutions to her problems concerning work ability.

A functional approach to cerebral visual impairments in very preterm/very-low-birth-weight children.

PubMed

Geldof, Christiaan J A; van Wassenaer-Leemhuis, Aleid G; Dik, Marjolein; Kok, Joke H; Oosterlaan, Jaap

2015-08-01

Cerebral visual impairment (CVI) is a major cause of visual impairment, with very preterm birth/very low birth weight (VP/VLBW) being a major risk factor. There is no generally accepted definition of CVI. This study aims to investigate the usefulness of an empirically-based functional definition of CVI. One-hundred-five VP/VLBW children and 67 controls participated. CVI was defined after comprehensive oculomotor, visual sensory and perceptive assessment, and validated against vision problems in daily life and in terms of intellectual, behavioral, emotional and social functioning, as well as use of therapeutic services. Twenty-four per cent of the VP/VLBW children met criteria for CVI, compared to 7% of controls (P = 0.006, OR: 3.86, 95% CI: 1.40-10.70). VP/VLBW children with CVI had lower performance IQ, but not verbal IQ, than those without CVI. Visual problems in daily life were confirmed in VP/VLBW children classified with CVI. Additionally, difficulties in behavioral and social functioning were most prominent among VP/VLBW children with CVI. In VP/VLBW children, CVI defined in terms of visual function deficits is accompanied by intellectual, behavioral, and social impairments, validating our operational definition of CVI. CVI might act as a marker for developmental problems in VP/VLBW children.

An Ada Based Expert System for the Ada Version of SAtool II. Volume 1 and 2

DTIC Science & Technology

1991-06-06

Integrated Computer-Aided Manufacturing (ICAM) (20). In fact, IDEF 0 stands for ICAM Definition Method Zero . IDEF0 defines a subset of SA that omits...reasoning that has been programmed). An expert’s knowledge is specific to one problem domain as opposed to knowledge about general problem-solving...techniques. General problem domains are medicine, finance, science or engineering and so forth in which an expert can solve specific problems very well

Eigenvectors phase correction in inverse modal problem

NASA Astrophysics Data System (ADS)

Qiao, Guandong; Rahmatalla, Salam

2017-12-01

The solution of the inverse modal problem for the spatial parameters of mechanical and structural systems is heavily dependent on the quality of the modal parameters obtained from the experiments. While experimental and environmental noises will always exist during modal testing, the resulting modal parameters are expected to be corrupted with different levels of noise. A novel methodology is presented in this work to mitigate the errors in the eigenvectors when solving the inverse modal problem for the spatial parameters. The phases of the eigenvector component were utilized as design variables within an optimization problem that minimizes the difference between the calculated and experimental transfer functions. The equation of motion in terms of the modal and spatial parameters was used as a constraint in the optimization problem. Constraints that reserve the positive and semi-positive definiteness and the inter-connectivity of the spatial matrices were implemented using semi-definite programming. Numerical examples utilizing noisy eigenvectors with augmented Gaussian white noise of 1%, 5%, and 10% were used to demonstrate the efficacy of the proposed method. The results showed that the proposed method is superior when compared with a known method in the literature.

Indoor air quality: A psychosocial perspective

DOE Office of Scientific and Technical Information (OSTI.GOV)

Boxer, P.A.

1990-05-01

The incidence of indoor air quality problems has increased dramatically over the past decade. Investigation of these problems has yielded a definitive cause in only one third of the cases. Psychosocial factors may play a key role in the development and propagation of symptoms attributed to poor indoor air quality. Guidelines for managing indoor air quality problems from the organizational perspective are based upon psychosocial principles and elements of risk perception.

The Importance of Contexts in Strategies of Environmental Organizations with Regard to Climate Change

PubMed

Pleune

1997-09-01

/ The purpose of the study was to investigate the extent to which strategies of environmental organizations depend on contexts. I examined this dependence by analyzing the strategies of five environmental organizations in the Netherlands with regard to climate change. These strategies were investigated over time and compared with the strategies these organizations had used in relation to ozone depletion and acidification. The results indicate that several of the organizations changed their strategies with respect to climate change over time. Furthermore, different strategies were used simultaneously in relation to the three problems. The findings suggest that strategies concerning climate change were to a considerable extent determined by the dominant framing of the problem in society. This framing was defined mainly by actors other than environmental organizations. The initial framing of climate change as a CO2 problem, which brought the issue into the energy debate, as well as the more general definition of the problem in the late 1980s as a greenhouse problem, were very important for determining the strategies of the organizations. It can be concluded that strategies of Dutch environmental organizations with regard to climate change were strongly dependent on the context.KEY WORDS: Environmental organization; Strategy; Climate change; Man-nature relationship; Problem definition; Context

Commentary: getting real on addressing health care disparities and other systems problems.

PubMed

Madara, James L

2012-06-01

Physician membership organizations vary in the extent of their engagement in activities to address health disparities. Increasing engagement of those organizations not already highly active in this critical area is, thus, an opportunity. Studies that provide definitional contours of key issues, like disparities, are necessary and must be iteratively refined. However, parallel activities of intervention with measured outcomes to assess the effects of these interventions are necessary to truly address major problems in the health care system. To date, work in the problem definition category exceeds work toward intervention in and mitigation of these problems with measured outcomes. Many problems in health care, including disparities, are now sufficiently understood that it is time to shift focus toward bold intervention with measured outcomes. Optimal approaches that yield superior outcomes generally require collaboration across the provider-payer spectrum and the private sectors, including physicians, hospitals, insurers, etc. Stakeholders are now free to act in such coordinated fashion; it only requires social capital that permits cooperation and compromise. Interventions for problems such as health care disparities can be developed in the private sector and mirrored by government payers if physicians and organizations can get real about collaborating to implement outcomes-based initiatives to improve the health of all patients.

A new definition of maternal depletion syndrome.

PubMed Central

Winkvist, A; Rasmussen, K M; Habicht, J P

1992-01-01

BACKGROUND. Although the term "maternal depletion syndrome" has been commonly used to explain poor maternal and infant health, whether such a syndrome actually exists remains unclear. This uncertainty may be due to the lack of a clear definition of the syndrome and the absence of theoretical frameworks that account for the many factors related to reproductive nutrition. METHODS. We propose a new definition of maternal depletion syndrome within a framework that accounts for potential confounding factors. RESULTS. Our conceptual framework distinguishes between childbearing pattern and inadequate diet as causes of poor maternal health; hence, our definition of maternal depletion syndrome has both biological and practical meaning. The new definition is based on overall change in maternal nutritional status over one reproductive cycle in relation to possible depletion and repletion phases and in relation to initial nutritional status. CONCLUSIONS. The empirical application of this approach should permit the testing of the existence of maternal depletion syndrome in the developing world, and the distinction between populations where family planning will alleviate maternal depletion and those in which an improved diet is also necessary. PMID:1566948

What Is Community? An Evidence-Based Definition for Participatory Public Health

PubMed Central

MacQueen, Kathleen M.; McLellan, Eleanor; Metzger, David S.; Kegeles, Susan; Strauss, Ronald P.; Scotti, Roseanne; Blanchard, Lynn; Trotter, Robert T.

2001-01-01

Increased emphasis on community collaboration indicates the need for consensus regarding the definition of community within public health. This study examined whether members of diverse US communities described community in similar ways. To identify strategies to support community collaboration in HIV vaccine trials, qualitative interviews were conducted with 25 African Americans in Durham, NC; 26 gay men in San Francisco, Calif; 25 injection drug users in Philadelphia, Pa; and 42 HIV vaccine researchers across the United States. Verbatim responses to the question “What does the word community mean to you?” were analyzed. Cluster analysis was used to identify similarities in the way community was described. A common definition of community emerged as a group of people with diverse characteristics who are linked by social ties, share common perspectives, and engage in joint action in geographical locations or settings. The participants differed in the emphasis they placed on particular elements of the definition. Community was defined similarly but experienced differently by people with diverse backgrounds. These results parallel similar social science findings and confirm the viability of a common definition for participatory public health. PMID:11726368

Forest conflict in Thailand: northern minorities in focus.

PubMed

Hares, Minna

2009-03-01

This paper aims at exploring the local background of and solutions to the forest conflict in upland areas inhabited by ethnic minorities, who are called hill tribes, in northern Thailand. A so-called hill tribe problem has been officially identified as a result of the slash-and-burn cultivation and other perceived problems, such as opium poppy cultivation, illegal immigration, and the suspicion of disloyalty to the state. This has created distrust and tension between the groups and authorities. The local conflict has recently been related to the dilemma of conserving the forest from all human interference, while many people live and make their livelihood within and adjacent to the protected areas. Furthermore, as the results imply, strictly protected areas and reforestation have also increased the competition over land and natural resources and, thereby, the likelihood of local conflicts. The scarcity and pollution of water, illegal logging, and poor fire control have contributed to the conflicts between local communities. The conflicts between the local communities and officials have been nourished by political and public discussions. Using definitions and terms with negative connotations and ignoring the heterogeneity between the groups or labeling some groups as malevolent have increased distrust and strengthened existing stereotypical images. Conflict resolution starts with efforts toward better mutual understanding, and changes in structures and attitudes are necessary. Local cooperation, utilization of traditional methods, and local institutions are central to conflict solving.

SPD-based Logistics Management Model of Medical Consumables in Hospitals

PubMed Central

LIU, Tongzhu; SHEN, Aizong; HU, Xiaojian; TONG, Guixian; GU, Wei; YANG, Shanlin

2016-01-01

Background: With the rapid development of health services, the progress of medical science and technology, and the improvement of materials research, the consumption of medical consumables (MCs) in medical activities has increased in recent years. However, owing to the lack of effective management methods and the complexity of MCs, there are several management problems including MC waste, low management efficiency, high management difficulty, and frequent medical accidents. Therefore, there is urgent need for an effective logistics management model to handle these problems and challenges in hospitals. Methods: We reviewed books and scientific literature (by searching the articles published from 2010 to 2015 in Engineering Village database) to understand supply chain related theories and methods and performed field investigations in hospitals across many cities to determine the actual state of MC logistics management of hospitals in China. Results: We describe the definition, physical model, construction, and logistics operation processes of the supply, processing, and distribution (SPD) of MC logistics because of the traditional SPD model. With the establishment of a supply-procurement platform and a logistics lean management system, we applied the model to the MC logistics management of Anhui Provincial Hospital with good effects. Conclusion: The SPD model plays a critical role in optimizing the logistics procedures of MCs, improving the management efficiency of logistics, and reducing the costs of logistics of hospitals in China. PMID:27957435

Prevalence and determinants of disability among adults in Malaysia: results from the National Health and Morbidity Survey (NHMS) 2015.

PubMed

Ahmad, Noor Ani; Mohamad Kasim, Noraida; Mahmud, Nur Azna; Mohd Yusof, Yusniza; Othman, Salimah; Chan, Ying Ying; Abd Razak, Mohamad Aznuddin; Yusof, Muslimah; Omar, Maisarah; Abdul Aziz, Fazly Azry; Jamaluddin, Rasidah; Ibrahim Wong, Norazizah; Aris, Tahir

2017-09-29

Reliable national data on disability which is internationally comparable is needed in Malaysia. This study aims to examine the prevalence of disability among adults in Malaysia and its determinants, particularly the socioeconomic factors and comorbidities. This study was based on the disability module, which is part of the National Health and Morbidity Survey 2015. This survey was implemented using a multi-stage stratified sampling design. A locally validated Washington Group questionnaire was used to collect data on disability. Based on the definition of having at least one domain scored "a lot of difficulty or unable to do at all" or at least "some difficulty" scored in two domains, the prevalence of disability among adults in Malaysia was 11.8% (95% CI: 11.15, 12.53). Logistic regression analysis performed showed that population at risk of having disability in Malaysia were those of older people, ethnic minority, low level of education, single, obese, physically inactive and having mental health problems. Among older people, disability was significantly higher among those with no formal education, having mental health problems and physically inactive. The prevalence of disability among adults in Malaysia is comparable to WHO estimates and most developing countries. Planning for healthcare services should consider at-risk population, particularly older people and those from disadvantaged background to ensure equity healthcare.

Stakeholder Perspectives on Barriers for Healthy Living for Low-Income African American Families

PubMed Central

Jones, Veronnie Faye; Rowland, Michael L.; Young, Linda; Atwood, Katherine; Thompson, Kirsten; Sterrett, Emma; Honaker, Sarah Morsbach; Williams, Joel E.; Johnson, Knowlton; Davis, Deborah Winders

2014-01-01

Background: Childhood obesity is a growing problem for children in the United States, especially for children from low-income, African American families. Objective: The purpose of this qualitative study was to understand facilitators and barriers to engaging in healthy lifestyles faced by low-income African American children and their families. Methods: This qualitative study used semi-structured focus group interviews with eight African American children clinically identified as overweight or obese (BMI ≥ 85) and their parents. An expert panel provided insights in developing culturally appropriate intervention strategies. Results: Child and parent focus group analysis revealed 11 barriers and no definitive facilitators for healthy eating and lifestyles. Parents reported confusion regarding what constitutes nutritional eating, varying needs of family members in terms of issues with weight, and difficulty in engaging the family in appropriate and safe physical activities; to name a few themes. Community experts independently suggested that nutritional information is confusing and, often, contradictory. Additionally, they recommended simple messaging and practical interventions such as helping with shopping lists, meal planning, and identifying simple and inexpensive physical activities. Conclusion: Childhood obesity in the context of low-resource families is a complex problem with no simple solutions. Culturally sensitive and family informed interventions are needed to support low-income African American families in dealing with childhood obesity. PMID:25538931

The value of public health research and the division between basic vs. applied science.

PubMed

Almeida-Filho, Namoar; Goldbaum, Moisés

2003-02-01

We question the movement towards exclusion of population and social health research from the field of science. The background under analysis is contemporary Brazil, where the scientific field that hosts this kind of research is known as Collective Health. First, the problem is formalized on logical grounds, evaluating the pertinence of considering unscientific the many objects and methods of public health research. Secondly, the cases of pulmonary tuberculosis and external causes are brought in as illustrations of the kind of scientific problem faced in health research today. The logical and epistemological basis of different forms of "scientific segregation" based on biomedical reductionism is analyzed, departing from three theses: (i) the ethics of the general application of science; (ii) the inappropriateness of monopolies for objectivity in the sciences; (iii) the specificity of scientific fields. In the current panorama of health research in Brazil, a residual hegemonic position that defends a narrow and specific definition of the object of knowledge was found. The denial of validity and specificity to objects, methods and research techniques that constitute social and population research in health is linked to elements of irrationality in reductionism approaches. Nevertheless, efforts should be directed to overcome this scientific division, in order to develop a pluralist and interdisciplinary national science, committed to the health care realities of our country.

Forest Conflict in Thailand: Northern Minorities in Focus

NASA Astrophysics Data System (ADS)

Hares, Minna

2009-03-01

This paper aims at exploring the local background of and solutions to the forest conflict in upland areas inhabited by ethnic minorities, who are called hill tribes, in northern Thailand. A so-called hill tribe problem has been officially identified as a result of the slash-and-burn cultivation and other perceived problems, such as opium poppy cultivation, illegal immigration, and the suspicion of disloyalty to the state. This has created distrust and tension between the groups and authorities. The local conflict has recently been related to the dilemma of conserving the forest from all human interference, while many people live and make their livelihood within and adjacent to the protected areas. Furthermore, as the results imply, strictly protected areas and reforestation have also increased the competition over land and natural resources and, thereby, the likelihood of local conflicts. The scarcity and pollution of water, illegal logging, and poor fire control have contributed to the conflicts between local communities. The conflicts between the local communities and officials have been nourished by political and public discussions. Using definitions and terms with negative connotations and ignoring the heterogeneity between the groups or labeling some groups as malevolent have increased distrust and strengthened existing stereotypical images. Conflict resolution starts with efforts toward better mutual understanding, and changes in structures and attitudes are necessary. Local cooperation, utilization of traditional methods, and local institutions are central to conflict solving.

Well-posedness, linear perturbations, and mass conservation for the axisymmetric Einstein equations

DOE Office of Scientific and Technical Information (OSTI.GOV)

Dain, Sergio; Ortiz, Omar E.; Facultad de Matematica, Astronomia y Fisica, FaMAF, Universidad Nacional de Cordoba, Instituto de Fisica Enrique Gaviola, IFEG, CONICET, Ciudad Universitaria

2010-02-15

For axially symmetric solutions of Einstein equations there exists a gauge which has the remarkable property that the total mass can be written as a conserved, positive definite, integral on the spacelike slices. The mass integral provides a nonlinear control of the variables along the whole evolution. In this gauge, Einstein equations reduce to a coupled hyperbolic-elliptic system which is formally singular at the axis. As a first step in analyzing this system of equations we study linear perturbations on a flat background. We prove that the linear equations reduce to a very simple system of equations which provide, thoughmore » the mass formula, useful insight into the structure of the full system. However, the singular behavior of the coefficients at the axis makes the study of this linear system difficult from the analytical point of view. In order to understand the behavior of the solutions, we study the numerical evolution of them. We provide strong numerical evidence that the system is well-posed and that its solutions have the expected behavior. Finally, this linear system allows us to formulate a model problem which is physically interesting in itself, since it is connected with the linear stability of black hole solutions in axial symmetry. This model can contribute significantly to solve the nonlinear problem and at the same time it appears to be tractable.« less

Quality Assessment of Internationalised Studies: Theory and Practice

ERIC Educational Resources Information Center

Juknyte-Petreikiene, Inga

2013-01-01

The article reviews forms of higher education internationalisation at an institutional level. The relevance of theoretical background of internationalised study quality assessment is highlighted and definitions of internationalised studies quality are presented. Existing methods of assessment of higher education internationalisation are criticised…

Readability versus Leveling.

ERIC Educational Resources Information Center

Fry, Edward

2002-01-01

Shows some similarities and differences between readability formulas and leveling procedures and reports some current large-scale uses of readability formulas. Presents a dictionary definition of readability and leveling, and a history and background of readability and leveling. Discusses what goes into determining readability and leveling scores.…

16 CFR § 1102.2 - Purpose.

Code of Federal Regulations, 2013 CFR

2013-01-01

... AVAILABLE CONSUMER PRODUCT SAFETY INFORMATION DATABASE Background and Definitions § 1102.2 Purpose. This... establishment and maintenance of a Publicly Available Consumer Product Safety Information Database (also referred to as the “Database”) on the safety of consumer products and other products or substances...

16 CFR 1102.2 - Purpose.

Code of Federal Regulations, 2011 CFR

2011-01-01

... CONSUMER PRODUCT SAFETY INFORMATION DATABASE (Eff. Jan. 10, 2011) Background and Definitions § 1102.2... establishment and maintenance of a Publicly Available Consumer Product Safety Information Database (also referred to as the “Database”) on the safety of consumer products and other products or substances...

The Negro in America: A Bibliography. Second Edition.

ERIC Educational Resources Information Center

Miller, Elizabeth W., Comp.; Fisher, Mary L., Comp.

Contents of this annotated bibliography, containing 6500 entries embracing significant citations, scholarly and popular, of books, journals, pamphlets and government documents mainly published between 1954 and February 1970, includes the following sections: general background; history; demography; definition and description; biography and letters;…

I-CAN: The Classification and Prediction of Support Needs

ERIC Educational Resources Information Center

Arnold, Samuel R. C.; Riches, Vivienne C.; Stancliffe, Roger J.

2014-01-01

Background: Since 1992, the diagnosis and classification of intellectual disability has been dependent upon three constructs: intelligence, adaptive behaviour and support needs (Luckasson "et al." 1992. Mental Retardation: Definition, Classification and Systems of Support. American Association on Intellectual and Developmental…

Taxonomy of Tuition Discounting.

ERIC Educational Resources Information Center

Allan, Ronald Gage

1999-01-01

Reviews issues surrounding college tuition discounting, and outlines sources of confusion, defines various discount types, provides historical background prior to recent changes in fund accounting rules, describes the new rules' impact, outlines different uses of tuition discounting by three groups, and applies the accumulated definitions to an…

Research for Progress in Education. Annual Report: Fiscal Year 1970.

ERIC Educational Resources Information Center

National Center for Educational Research and Development (DHEW/OE), Washington, DC.

This annual report begins with a brief overview of cooperative research objectives and background. The five major sections are 1) "Cooperative Research Authorization" including the basic authorizations and subsequent amendments; 2) "Management Policies and Procedures;" 3) "Definitions and Distinctions" covering major…

Career Development Standards. What Are They? Background Paper.

ERIC Educational Resources Information Center

Pruitt, Wes

Washington's Workforce Training and Education Coordinating Board (WTECB) conducted research to identify components that constitute a content definition of career development by relating history, defining nomenclature, identifying issues, and describing the various approaches to such standards. Past efforts to establish academic and career…

Microcanonical entropy for classical systems

NASA Astrophysics Data System (ADS)

Franzosi, Roberto

2018-03-01

The entropy definition in the microcanonical ensemble is revisited. We propose a novel definition for the microcanonical entropy that resolve the debate on the correct definition of the microcanonical entropy. In particular we show that this entropy definition fixes the problem inherent the exact extensivity of the caloric equation. Furthermore, this entropy reproduces results which are in agreement with the ones predicted with standard Boltzmann entropy when applied to macroscopic systems. On the contrary, the predictions obtained with the standard Boltzmann entropy and with the entropy we propose, are different for small system sizes. Thus, we conclude that the Boltzmann entropy provides a correct description for macroscopic systems whereas extremely small systems should be better described with the entropy that we propose here.

Addiction recovery: its definition and conceptual boundaries.

PubMed

White, William L

2007-10-01

The addiction field's failure to achieve consensus on a definition of "recovery" from severe and persistent alcohol and other drug problems undermines clinical research, compromises clinical practice, and muddles the field's communications to service constituents, allied service professionals, the public, and policymakers. This essay discusses 10 questions critical to the achievement of such a definition and offers a working definition of recovery that attempts to meet the criteria of precision, inclusiveness, exclusiveness, measurability, acceptability, and simplicity. The key questions explore who has professional and cultural authority to define recovery, the defining ingredients of recovery, the boundaries (scope and depth) of recovery, and temporal benchmarks of recovery (when recovery begins and ends). The process of defining recovery touches on some of the most controversial issues within the addictions field.

Claims-Based Definition of Death in Japanese Claims Database: Validity and Implications

PubMed Central

Ooba, Nobuhiro; Setoguchi, Soko; Ando, Takashi; Sato, Tsugumichi; Yamaguchi, Takuhiro; Mochizuki, Mayumi; Kubota, Kiyoshi

2013-01-01

Background For the pending National Claims Database in Japan, researchers will not have access to death information in the enrollment files. We developed and evaluated a claims-based definition of death. Methodology/Principal Findings We used healthcare claims and enrollment data between January 2005 and August 2009 for 195,193 beneficiaries aged 20 to 74 in 3 private health insurance unions. We developed claims-based definitions of death using discharge or disease status and Charlson comorbidity index (CCI). We calculated sensitivity, specificity and positive predictive values (PPVs) using the enrollment data as a gold standard in the overall population and subgroups divided by demographic and other factors. We also assessed bias and precision in two example studies where an outcome was death. The definition based on the combination of discharge/disease status and CCI provided moderate sensitivity (around 60%) and high specificity (99.99%) and high PPVs (94.8%). In most subgroups, sensitivity of the preferred definition was also around 60% but varied from 28 to 91%. In an example study comparing death rates between two anticancer drug classes, the claims-based definition provided valid and precise hazard ratios (HRs). In another example study comparing two classes of anti-depressants, the HR with the claims-based definition was biased and had lower precision than that with the gold standard definition. Conclusions/Significance The claims-based definitions of death developed in this study had high specificity and PPVs while sensitivity was around 60%. The definitions will be useful in future studies when used with attention to the possible fluctuation of sensitivity in some subpopulations. PMID:23741526

Pacing: A concept analysis of a chronic pain intervention

PubMed Central

Jamieson-Lega, Kathryn; Berry, Robyn; Brown, Cary A

2013-01-01

BACKGROUND: The intervention of pacing is regularly recommended for chronic pain patients. However, pacing is poorly defined and appears to be interpreted in varying, potentially contradictory manners within the field of chronic pain. This conceptual lack of clarity has implications for effective service delivery and for researchers’ ability to conduct rigorous study. An examination of the background literature demonstrates that while pacing is often one part of a multidisciplinary pain management program, outcome research is hindered by a lack of a clear and shared definition of this currently ill-defined construct. OBJECTIVES: To conduct a formal concept analysis of the term ‘pacing’. METHODS: A standardized concept analysis process (including literature scoping to identify all uses of the concept, analysis to determine defining attributes of the concept and identification of model, borderline and contrary cases) was used to determine what the concept of pacing does and does not represent within the current evidence base. RESULTS: A conceptual model including the core attributes of action, time, balance, learning and self-management emerged. From these attributes, an evidence-based definition for pacing was composed and distributed to stakeholders for review. After consideration of stakeholder feedback, the emergent definition of pacing was finalized as follows: “Pacing is an active self-management strategy whereby individuals learn to balance time spent on activity and rest for the purpose of achieving increased function and participation in meaningful activities”. CONCLUSION: The findings of the present concept analysis will help to standardize the use and definition of the term pacing across disciplines for the purposes of both pain management and research. PMID:23717825

Systems biology definition of the core proteome of metabolism and expression is consistent with high-throughput data.

PubMed

Yang, Laurence; Tan, Justin; O'Brien, Edward J; Monk, Jonathan M; Kim, Donghyuk; Li, Howard J; Charusanti, Pep; Ebrahim, Ali; Lloyd, Colton J; Yurkovich, James T; Du, Bin; Dräger, Andreas; Thomas, Alex; Sun, Yuekai; Saunders, Michael A; Palsson, Bernhard O

2015-08-25

Finding the minimal set of gene functions needed to sustain life is of both fundamental and practical importance. Minimal gene lists have been proposed by using comparative genomics-based core proteome definitions. A definition of a core proteome that is supported by empirical data, is understood at the systems-level, and provides a basis for computing essential cell functions is lacking. Here, we use a systems biology-based genome-scale model of metabolism and expression to define a functional core proteome consisting of 356 gene products, accounting for 44% of the Escherichia coli proteome by mass based on proteomics data. This systems biology core proteome includes 212 genes not found in previous comparative genomics-based core proteome definitions, accounts for 65% of known essential genes in E. coli, and has 78% gene function overlap with minimal genomes (Buchnera aphidicola and Mycoplasma genitalium). Based on transcriptomics data across environmental and genetic backgrounds, the systems biology core proteome is significantly enriched in nondifferentially expressed genes and depleted in differentially expressed genes. Compared with the noncore, core gene expression levels are also similar across genetic backgrounds (two times higher Spearman rank correlation) and exhibit significantly more complex transcriptional and posttranscriptional regulatory features (40% more transcription start sites per gene, 22% longer 5'UTR). Thus, genome-scale systems biology approaches rigorously identify a functional core proteome needed to support growth. This framework, validated by using high-throughput datasets, facilitates a mechanistic understanding of systems-level core proteome function through in silico models; it de facto defines a paleome.

Community Background Reports: Papago Reservation, Sells, Arizona. National Study of American Indian Education, Series I, No. 17, Final Report.

ERIC Educational Resources Information Center

Mackett, Robert; Chilcott, John H.

Number 17 in Series I of the final report of the National Study of American Indian Education describes the small community of Sells, Arizona, in terms of (1) location and climate, (2) sociocultural background, (3) transportation problems, (4) housing problems, (5) governmental influence, (6) recreation, (7) educational opportunities, and (8)…

Boosted Schwarzschild metrics from a Kerr–Schild perspective

NASA Astrophysics Data System (ADS)

Mädler, Thomas; Winicour, Jeffrey

2018-02-01

The Kerr–Schild version of the Schwarzschild metric contains a Minkowski background which provides a definition of a boosted black hole. There are two Kerr–Schild versions corresponding to ingoing or outgoing principle null directions. We show that the two corresponding Minkowski backgrounds and their associated boosts have an unexpected difference. We analyze this difference and discuss the implications in the nonlinear regime for the gravitational memory effect resulting from the ejection of massive particles from an isolated system. We show that the nonlinear effect agrees with the linearized result based upon the retarded Green function only if the velocity of the ejected particle corresponds to a boost symmetry of the ingoing Minkowski background. A boost with respect to the outgoing Minkowski background is inconsistent with the absence of ingoing radiation from past null infinity.

Outdoor Behavioral Healthcare: Definitions, Common Practice, Expected Outcomes, and a Nationwide Survey of Programs. Technical Report.

ERIC Educational Resources Information Center

Russell, Keith C.; Hendee, John C.

Outdoor behavioral healthcare (OBH) is an emerging mental health intervention/treatment to help adolescents overcome emotional, psychological, and addiction problems. Currently, over 100 OBH programs in the United States use elements of wilderness therapy to address adolescents' problem behaviors and foster responsibility and personal growth.…

Research Paradigm Shifts and Their Bibliographic Consequences for English Composition Researchers.

ERIC Educational Resources Information Center

Scott, Patrick

There are four problems in modern composition bibliography that result directly from the continuing research paradigm instability in the field. The first problem is that of definition. Composition is a hybrid, practical sort of field, with very ill-defined and shifting boundaries. The recent extension of composition from "formal writing…

Defining Problematic Infant Sleep: Shifting the Focus from Deviance to Difference

ERIC Educational Resources Information Center

Middlemiss, Wendy

2004-01-01

This article examines research that calls into question the soundness of current definitions of problematic infant sleep. Current research suggests that infant night wakings and signaling behaviors may be normative. Research is inconclusive on whether early sleep problems are predictive of later sleep problems. The article also describes research…

The Third Wave. . . America's New Conservation, Conservation Yearbook No. 3.

ERIC Educational Resources Information Center

Department of the Interior, Washington, DC.

Concerned first with the definition of conservation and its problems, and then with specific actions by the Department of the Interior in response to these problems, this 1966 yearbook provides highlights of work done by the 26 bureaus, offices, and/or administrations within the Department. Coverage is broad, relating to many aspects of…

Analyzing Algebraic Thinking Using "Guess My Number" Problems

ERIC Educational Resources Information Center

Patton, Barba; De Los Santos, Estella

2012-01-01

The purpose of this study was to assess student knowledge of numeric, visual and algebraic representations. A definite gap between arithmetic and algebra has been documented in the research. The researchers' goal was to identify a link between the two. Using four "Guess My Number" problems, seventh and tenth grade students were asked to write…

Mind and Inferiority: Reflections on "English" as a University Discipline in a Black Context.

ERIC Educational Resources Information Center

Aitken, Richard

1987-01-01

The social/political issues facing university English departments in South Africa include problems of identity and definition, the need for instruction within the context of social and political history, the problems of cultural relativism, the corrosive implications of Black subordination, and the complex alternatives of private and public…

The LACIE data bases: Design considerations

NASA Technical Reports Server (NTRS)

Westberry, L. E. (Principal Investigator)

1979-01-01

The implementation of direct access storage devices for LACIE is discussed with emphasis on the storage and retrieval of image data. Topics covered include the definition of the problem, the solution methodology (design decisions), the initial operational structure, and the modifications which were incorporated. Some conclusions and projections of future problems to be solved are also presented.

Bending Back on High School Programs for Youth with Learning Disabilities

ERIC Educational Resources Information Center

Edgar, Eugene

2005-01-01

In this opinion piece, the author views several major problems facing those who care about students labeled has having learning disabilities (LD). He believes that while there are technical problems that educators should be able to fix (definition of LD, best instructional practices for students so identified, powerful secondary programs that…

Methodological Issues and Practical Problems in Conducting Research on Abused Children.

ERIC Educational Resources Information Center

Kinard, E. Milling

In order to inform policy and programs, research on child abuse must be not only methodologically rigorous, but also practically feasible. However, practical problems make child abuse research difficult to conduct. Definitions of abuse must be explicit and different types of abuse must be assessed separately. Study samples should be as…

Latent Class Analysis of Conduct Problems of Elementary Students Receiving Special Education Services

ERIC Educational Resources Information Center

Toupin, Jean; Déry, Michèle; Verlaan, Pierrette; Lemelin, Jean-Pascal; Lecocq, Aurélie; Jagiellowicz, Jadwiga

2016-01-01

Students with conduct problems (CPs) may present heterogeneity in terms of behavioral manifestations and service needs. Previous studies using Latent Class Analysis (LCA) to capture this heterogeneity have been conducted mostly with community samples and have often applied a narrow definition of CP. Considering this context, this study…

Inappropriate and Excessive Guilt: Instrument Validation and Developmental Differences in Relation to Depression

ERIC Educational Resources Information Center

Tilghman-Osborne, Carlos; Cole, David A.; Felton, Julia W.

2012-01-01

Inappropriate or excessive guilt is listed as a symptom of depression by the American Psychiatric Association ("1994"). Although many measures of guilt have been developed, definitional and operational problems exist, especially in the application of such measures in childhood and adolescence. To address these problems, the current study…

Creative and Critical Thinking Skills in Problem-Based Learning Environments

ERIC Educational Resources Information Center

Birgili, Bengi

2015-01-01

Creative and critical thinking skills are the abilities, which can sometimes be used interchangeably in definition. In fact, they have different constructs because they differentiate in outcome of human behaviours. Also one of today's requirements is that individuals should approach everyday problems by using both competences. So, one of the…

Visitor perception of wilderness recreation carrying capacity

Treesearch

George H. Stankey

1973-01-01

Presents results of a study of wilderness users in the Bob Marshall, Bridger, High Uintas, and the Boundary Waters Canoe Area (BWCA) to determine their perception of, and reaction to, problems such as crowding, littering, and conflicts between user groups, and to management actions to alleviate such problems. Definitions of crowding included references to conflicts...

Conceptions of Efficiency: Applications in Learning and Problem Solving

ERIC Educational Resources Information Center

Hoffman, Bobby; Schraw, Gregory

2010-01-01

The purpose of this article is to clarify conceptions, definitions, and applications of learning and problem-solving efficiency. Conceptions of efficiency vary within the field of educational psychology, and there is little consensus as to how to define, measure, and interpret the efficiency construct. We compare three diverse models that differ…

The quandaries and promise of risk management: a scientist's perspective on integration of science and management.

Treesearch

B.G. Marcot

2007-01-01

This paper briefly lists constraints and problems of traditional approaches to natural resource risk analysis and risk management. Such problems include disparate definitions of risk, multiple and conflicting objectives and decisions, conflicting interpretations of uncertainty, and failure of articulating decision criteria, risk attitudes, modeling assumptions, and...

Rural Communities: Legacy & Change.

ERIC Educational Resources Information Center

Flora, Cornelia Butler; And Others

This book is designed to help identify, analyze, and address problems that are found in rural parts of the United States. It focuses on the community as the place where individuals come together in order to solve those problems. The book's 13 chapters are divided into 4 sections. The first section discusses rural definition and community…

Food Science in Developing Countries: A Selection of Unsolved Problems.

ERIC Educational Resources Information Center

National Academy of Sciences - National Research Council, Washington, DC.

Presented are summaries of 42 unsolved problems in food science which exist in various developing countries throughout the world. Problems deal with new foods, food processing, food composition, nutrition, and health. Each problem presented includes the problem description, background information, possible approaches to solutions, special…

The Line-drawing Problem in Disease Definition.

PubMed

Rogers, Wendy A; Walker, Mary Jean

2017-08-01

Biological dysfunction is regarded, in many accounts, as necessary and perhaps sufficient for disease. But although disease is conceptualized as all-or-nothing, biological functions often differ by degree. A tension is created by attempting to use a continuous variable as the basis for a categorical definition, raising questions about how we are to pinpoint the boundary between health and disease. This is the line-drawing problem. In this paper, we show how the line-drawing problem arises within "dysfunction-requiring" accounts of disease, such as those of Christopher Boorse and Jerome Wakefield. We then provide several detailed examples to establish that biological dysfunction cannot provide a boundary. We examine potential ways of resolving the line-drawing problem, either by dropping one of the claims that generates it, or by appealing to additional criteria. We argue that two of these options are plausible, and that each of these can be applied with regard to different diseases. © The Author 2017. Published by Oxford University Press, on behalf of the Journal of Medicine and Philosophy Inc. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.

The relation between the bifactor model of the Youth Psychopathic Traits Inventory and conduct problems in adolescence: Variations across gender, ethnic background, and age.

PubMed

Zwaanswijk, Wendy; Veen, Violaine C; van Geel, Mitch; Andershed, Henrik; Vedder, Paul

2017-08-01

The current study examines how the bifactor model of the Youth Psychopathic Traits Inventory (YPI) is related to conduct problems in a sample of Dutch adolescents (N = 2,874; 43% female). It addresses to what extent the YPI dimensions explain variance over and above a General Psychopathy factor (i.e., one factor related to all items) and how the general factor and dimensional factors are related to conduct problems. Group differences in these relations for gender, ethnic background, and age were examined. Results showed that the general factor is most important, but dimensions explain variance over and above the general factor. The general factor, and Affective and Lifestyle dimensions, of the YPI were positively related to conduct problems, whereas the Interpersonal dimension was not, after taking the general factor into account. However, across gender, ethnic background, and age, different dimensions were related to conduct problems over and above the general factor. This suggests that all 3 dimensions should be assessed when examining the psychopathy construct. (PsycINFO Database Record (c) 2017 APA, all rights reserved).

Drug-resistant tuberculosis clinical trials: proposed core research definitions in adults.

PubMed

Furin, J; Alirol, E; Allen, E; Fielding, K; Merle, C; Abubakar, I; Andersen, J; Davies, G; Dheda, K; Diacon, A; Dooley, K E; Dravnice, G; Eisenach, K; Everitt, D; Ferstenberg, D; Goolam-Mahomed, A; Grobusch, M P; Gupta, R; Harausz, E; Harrington, M; Horsburgh, C R; Lienhardt, C; McNeeley, D; Mitnick, C D; Nachman, S; Nahid, P; Nunn, A J; Phillips, P; Rodriguez, C; Shah, S; Wells, C; Thomas-Nyang'wa, B; du Cros, P

2016-03-01

Drug-resistant tuberculosis (DR-TB) is a growing public health problem, and for the first time in decades, new drugs for the treatment of this disease have been developed. These new drugs have prompted strengthened efforts in DR-TB clinical trials research, and there are now multiple ongoing and planned DR-TB clinical trials. To facilitate comparability and maximise policy impact, a common set of core research definitions is needed, and this paper presents a core set of efficacy and safety definitions as well as other important considerations in DR-TB clinical trials work. To elaborate these definitions, a search of clinical trials registries, published manuscripts and conference proceedings was undertaken to identify groups conducting trials of new regimens for the treatment of DR-TB. Individuals from these groups developed the core set of definitions presented here. Further work is needed to validate and assess the utility of these definitions but they represent an important first step to ensure there is comparability in clinical trials on multidrug-resistant TB.

An Analysis of Secondary and Middle School Teachers' Mathematical Problem Posing

ERIC Educational Resources Information Center

Stickles, Paula R.

2011-01-01

This study identifies the kinds of problems teachers pose when they are asked to (a) generate problems from given information and (b) create new problems from ones given to them. To investigate teachers' problem posting, preservice and inservice teachers completed background questionnaires and four problem-posing instruments. Based on previous…

Subspace-based optimization method for inverse scattering problems with an inhomogeneous background medium

NASA Astrophysics Data System (ADS)

Chen, Xudong

2010-07-01

This paper proposes a version of the subspace-based optimization method to solve the inverse scattering problem with an inhomogeneous background medium where the known inhomogeneities are bounded in a finite domain. Although the background Green's function at each discrete point in the computational domain is not directly available in an inhomogeneous background scenario, the paper uses the finite element method to simultaneously obtain the Green's function at all discrete points. The essence of the subspace-based optimization method is that part of the contrast source is determined from the spectrum analysis without using any optimization, whereas the orthogonally complementary part is determined by solving a lower dimension optimization problem. This feature significantly speeds up the convergence of the algorithm and at the same time makes it robust against noise. Numerical simulations illustrate the efficacy of the proposed algorithm. The algorithm presented in this paper finds wide applications in nondestructive evaluation, such as through-wall imaging.

Difficulty understanding speech in noise by the hearing impaired: underlying causes and technological solutions.

PubMed

Healy, Eric W; Yoho, Sarah E

2016-08-01

A primary complaint of hearing-impaired individuals involves poor speech understanding when background noise is present. Hearing aids and cochlear implants often allow good speech understanding in quiet backgrounds. But hearing-impaired individuals are highly noise intolerant, and existing devices are not very effective at combating background noise. As a result, speech understanding in noise is often quite poor. In accord with the significance of the problem, considerable effort has been expended toward understanding and remedying this issue. Fortunately, our understanding of the underlying issues is reasonably good. In sharp contrast, effective solutions have remained elusive. One solution that seems promising involves a single-microphone machine-learning algorithm to extract speech from background noise. Data from our group indicate that the algorithm is capable of producing vast increases in speech understanding by hearing-impaired individuals. This paper will first provide an overview of the speech-in-noise problem and outline why hearing-impaired individuals are so noise intolerant. An overview of our approach to solving this problem will follow.

Does the Reliability of Reporting in Injury Surveillance Studies Depend on Injury Definition?

PubMed Central

Cross, Matthew; Williams, Sean; Kemp, Simon P.T.; Fuller, Colin; Taylor, Aileen; Brooks, John; Trewartha, Grant; Stokes, Keith

2018-01-01

Background: Choosing an appropriate definition for injury in injury surveillance studies is essential to ensure a balance among reporting reliability, providing an accurate representation of injury risk, and describing the nature of the clinical demand. Purpose: To provide guidance on the choice of injury definition for injury surveillance studies by comparing within- and between-team variability in injury incidence with >24-hour and >7-day time-loss injury definitions in a large multiteam injury surveillance study. Study Design: Cohort study (diagnosis); Level of evidence, 2. Methods: Injury data were reported for 2248 professional rugby union players from 15 Premiership Rugby clubs over 12 seasons. Within-team percentage coefficient of variation and mean between-team standard deviation (expressed as a percentage coefficient of variation) in injury incidence rates (injuries per 1000 player match hours) were calculated. For both variables, a comparison was made between >24-hour and >7-day injury incidence rates in terms of the magnitude of the observed effects. Results: The overall mean incidence across the population with a >24-hour time-loss injury definition was approximately double the reported incidence with the >7-day definition. There was a 10% higher between-team variation in match injury incidence rates with the >24-hour time-loss definition versus the >7-day definition. Conclusion: There was a likely higher degree of between-team variation in match injury incidence rates with a >24-hour time-loss definition than with a >7-day definition of injury. However, in professional sports settings, it is likely that the benefits of using a more inclusive definition of injury (improved understanding of clinical demand and the appropriate and accurate reporting of injury risk) outweigh the small increase in variation in reporting consistency. PMID:29581994

Varying Definitions for Periprocedural Myocardial Infarction Alter Event Rates and Prognostic Implications

PubMed Central

Idris, Hanan; Lo, Sidney; Shugman, Ibrahim M.; Saad, Yousef; Hopkins, Andrew P.; Mussap, Christian; Leung, Dominic; Thomas, Liza; Juergens, Craig P.; French, John K.

2014-01-01

Background Periprocedural myocardial infarction (PMI) has had several definitions in the last decade, including the Society for Cardiovascular Angiography and Interventions (SCAI) definition, that requires marked biomarker elevations congruent with surgical PMI criteria. Methods and Results The aim of this study was to examine the definition‐based frequencies of PMI and whether they influenced the reported association between PMI and increased rates of late death/ myocardial infarction (MI). We studied 742 patients; 492 (66%) had normal troponin T (TnT) levels and 250 (34%) had elevated, but stable or falling, TnT levels. PMI, using the 2007 and the 2012 universal definition, occurred in 172 (23.2%) and in 99 (13.3%) patients, respectively, whereas 19 (2.6%) met the SCAI PMI definition (P<0.0001). Among patients with PMI using the 2012 definition, occlusion of a side branch ≤1 mm occurred in 48 patients (48.5%) and was the most common angiographic finding for PMI. The rates of death/MI at 2 years in patients with, compared to those without, PMI was 14.7% versus 10.1% (P=0.087) based on the 2007 definition, 16.9% versus 10.3% (P=0.059) based on the 2012 definition, and 29.4% versus 10.7% (P=0.015) based on the SCAI definition. Conclusion In this study, PMI, according to the SCAI definition, was associated with more‐frequent late death/MI, with ≈20% of all patients, who had PMI using the 2007 universal MI definition, not having SCAI‐defined PMI. Categorizing these latter patients as SCAI‐defined no PMI did not alter the rate of death/MI among no‐PMI patients. PMID:25359403

Understanding `green chemistry' and `sustainability': an example of problem-based learning (PBL)

NASA Astrophysics Data System (ADS)

Günter, Tuğçe; Akkuzu, Nalan; Alpat, Şenol

2017-10-01

Background: This study uses problem-based learning (PBL) to ensure that students comprehend the significance of green chemistry better by experiencing the stages of identifying the problem, developing hypotheses, and providing solutions within the problem-solving process.

Limits of operationalization: a critique of Spitzer and Endicott's (1978) proposed operational criteria for mental disorder.

PubMed

Wakefield, J C

1993-02-01

Spitzer and Endicott (1978) proposed an operational definition of mental disorder that is a more rigorous version of the brief definitions that appeared in the 3rd and revised 3rd editions of the Diagnostic and Statistical Manual of Mental Disorders. The heart of their proposal is a translation of the concept of dysfunction into operational terms. I argue that their definition fails to capture the concept of dysfunction and is subject to many counterexamples. I use my harmful dysfunction account of disorder (Wakefield, 1992a, 1992b), which interprets dysfunction in evolutionary terms, to explain both the appeal and the problems of Spitzer and Endicott's definition and to provide support for the harmful dysfunction view. I conclude that the failure of Spitzer and Endicott's sophisticated attempt at operationalization indicates that nonoperational definitions that use functional concepts must play a role in formulating valid diagnostic criteria.

Definitions and the experience of fertility problems: infertile and sub-fertile women, childless mothers, and honorary mothers in two southern Nigerian communities.

PubMed

Whitehouse, Bruce; Hollos, Marida

2014-03-01

Although infertility causes women considerable grief, social stigma, and economic deprivation, scholars have paid little attention to infertility's definitions that may depart from the standard Western usage and how such definitions influence the way women experience the condition. This article, by listening to individual women's experiences of infertility in two Nigerian communities, examines these definitions and differentiates between culturally salient categories of infertility. In distinguishing between different kinds of childless women and those with low fertility, we intend to enhance understandings of infertility by considering women's subjective understandings of the condition and thus moving beyond the current medical definition. By comparing women's experiences in two different ethnic groups in Nigeria, we show how distinct forms of kinship structures and social organizations shape the ways low fertility is defined, managed, and experienced. © 2013 by the American Anthropological Association.

The end height of fireball as a function of their residual kinetic energy

NASA Technical Reports Server (NTRS)

Revelle, D. O.

1987-01-01

Previous analyses of meteoroid compositional groupings have utilized the end height of fireballs as a diagnostic tool. From an observational perspective this definition is straight forward, but from a theoretical viewpoint there are problems with using this operational definition. In order to realistically assess the estimated geometric uncertainty of + 1 km in the observed end height, a theoretical definition of the end height of meteoritic fireballs is proposed using the results from the integral radiation efficiency model of ReVelle. Three photographed and recovered meteorites are used as a calibration for this proposed definition. This definition was used to evaluate the end height of all fireballs that were deduced by Wetherill and ReVelle as being meteoritic. In almost all cases the theoretical values are lower than the observed values, in some cases as much as 5 km lower. A preliminary summary of results are given.

Definitions and the Experience of Fertility Problems: Infertile and Sub-fertile Women, Childless Mothers, and Honorary Mothers in Two Southern Nigerian Communities

PubMed Central

Whitehouse, Bruce; Hollos, Marida

2015-01-01

Although infertility causes women considerable grief, social stigma, and economic deprivation, scholars have paid little attention to infertility’s definitions that may depart from the standard Western usage and how such definitions influence the way women experience the condition. This article, by listening to individual women’s experiences of infertility in two Nigerian communities, examines these definitions and differentiates between culturally salient categories of infertility. In distinguishing between different kinds of childless women and those with low fertility, we intend to enhance understandings of infertility by considering women’s subjective understandings of the condition and thus moving beyond the current medical definition. By comparing women’s experiences in two different ethnic groups in Nigeria, we show how distinct forms of kinship structures and social organizations shape the ways low fertility is defined, managed, and experienced. PMID:24578250

37 CFR 262.2 - Definitions.

Code of Federal Regulations, 2010 CFR

2010-07-01

... commercials or program segments, brief performances during news, talk and sports programming, brief background... distinguished from data that predominantly concern nonsubscribers or other services; and (5) Bad debts recovered... shall be permitted to deduct bad debts actually written off during a reporting period. [69 FR 5695, Feb...

37 CFR 262.2 - Definitions.

Code of Federal Regulations, 2011 CFR

2011-07-01

... commercials or program segments, brief performances during news, talk and sports programming, brief background... distinguished from data that predominantly concern nonsubscribers or other services; and (5) Bad debts recovered... shall be permitted to deduct bad debts actually written off during a reporting period. [69 FR 5695, Feb...

Ownership, Privacy, Confidentiality, and Security Data.

ERIC Educational Resources Information Center

Staman, E. Michael

1986-01-01

One of the areas most often neglected by those responsible for information systems in colleges and universities relates to ownership, privacy, confidentiality, and security of data. Background information and definitions are provided, and a suggested environment is described. Model recommendations for institutional policy are offered. (MLW)

Dyscalculia in Harrow

ERIC Educational Resources Information Center

Messenger, Chris; Emerson, Jane; Bird, Ronit

2007-01-01

In this article, the authors offer three definitions of dyscalculia, then describe the background and initial progress of the Harrow Dyscalculia Project. Their project in Harrow is associated with ongoing research into numeracy and brain development led by Brian Butterworth, Professor of Cognitive Neuropsychology at UCL. Pupils from Harrow schools…

22 CFR 96.2 - Definitions.

Code of Federal Regulations, 2011 CFR

2011-04-01

... means a social work professional or organization that performs a home study on prospective adoptive..., but not limited to, photographs, videos, correspondence, personal effects, medical and social... of parental rights and to adoption; (3) Performing a background study on a child or a home study on a...

22 CFR 96.2 - Definitions.

Code of Federal Regulations, 2010 CFR

2010-04-01

... means a social work professional or organization that performs a home study on prospective adoptive..., but not limited to, photographs, videos, correspondence, personal effects, medical and social... of parental rights and to adoption; (3) Performing a background study on a child or a home study on a...

22 CFR 96.2 - Definitions.

Code of Federal Regulations, 2014 CFR

2014-04-01

... means a social work professional or organization that performs a home study on prospective adoptive..., but not limited to, photographs, videos, correspondence, personal effects, medical and social... of parental rights and to adoption; (3) Performing a background study on a child or a home study on a...

22 CFR 96.2 - Definitions.

Code of Federal Regulations, 2013 CFR

2013-04-01

... means a social work professional or organization that performs a home study on prospective adoptive..., but not limited to, photographs, videos, correspondence, personal effects, medical and social... of parental rights and to adoption; (3) Performing a background study on a child or a home study on a...

Guidelines for the Practice of Adaptive Diabetes Education for Visually Impaired Persons.

ERIC Educational Resources Information Center

Berkowitz, Kathy

1993-01-01

This article presents guidelines developed by the American Association of Diabetes Educators concerning adaptive diabetes education for visually impaired persons (ADEVIP). The article discusses definitions, values, and assumptions; recommended professional educational background; role delineation; and process and content of ADEVIP. (DB)

16 CFR 1102.2 - Purpose.

Code of Federal Regulations, 2014 CFR

2014-01-01

... CONSUMER PRODUCT SAFETY INFORMATION DATABASE Background and Definitions § 1102.2 Purpose. This part sets... maintenance of a Publicly Available Consumer Product Safety Information Database (also referred to as the “Database”) on the safety of consumer products and other products or substances regulated by the Commission. ...

16 CFR 1102.2 - Purpose.

Code of Federal Regulations, 2012 CFR

2012-01-01

... CONSUMER PRODUCT SAFETY INFORMATION DATABASE Background and Definitions § 1102.2 Purpose. This part sets... maintenance of a Publicly Available Consumer Product Safety Information Database (also referred to as the “Database”) on the safety of consumer products and other products or substances regulated by the Commission. ...

48 Capabilities of Highly Educated People

ERIC Educational Resources Information Center

Greene, Richard Tabor

2008-01-01

Purpose: To get beyond religious, philosophic, and political definitions of educatedness by going empirical. To redo Plato, in effect, by defining "the good" empirically. Background: This research was part of the Excellence Science (orthogonal disciplines) Research Project at the University of Chicago. That project redid Plato by…

MIDSHIPS: multicentre intervention designed for self-harm using interpersonal problem-solving: protocol for a randomised controlled feasibility study.

PubMed

Collinson, Michelle; Owens, David; Blenkiron, Paul; Burton, Kayleigh; Graham, Liz; Hatcher, Simon; House, Allan; Martin, Katie; Pembroke, Louise; Protheroe, David; Tubeuf, Sandy; Farrin, Amanda

2014-05-10

Around 150,000 people each year attend hospitals in England due to self-harm, many of them more than once. Over 5,000 people die by suicide each year in the UK, a quarter of them having attended hospital in the previous year because of self-harm. Self-harm is a major identifiable risk factor for suicide. People receive variable care at hospital; many are not assessed for their psychological needs and little psychological therapy is offered. Despite its frequent occurrence, we have no clear research evidence about how to reduce the repetition of self-harm. Some people who have self-harmed show less active ways of solving problems, and brief problem-solving therapies are considered the most promising psychological treatments. This is a pragmatic, individually randomised, controlled, feasibility study comparing interpersonal problem-solving therapy plus treatment-as-usual with treatment-as-usual alone, for adults attending a general hospital following self-harm. A total of 60 participants will be randomised equally between the treatment arms, which will be balanced with respect to the type of most recent self-harm event, number of previous self-harm events, gender and age. Feasibility objectives are as follows: a) To establish and field test procedures for implementing the problem-solving intervention; b) To determine the feasibility and best method of participant recruitment and follow up; c) To assess therapeutic delivery; d) To assess the feasibility of obtaining the definitive trial's primary and secondary outcomes; e) To assess the perceived burden and acceptability of obtaining the trial's self-reported outcome data; f) To inform the sample size calculation for the definitive trial. The results of this feasibility study will be used to determine the appropriateness of proceeding to a definitive trial and will allow us to design an achievable trial of interpersonal problem-solving therapy for adults who self-harm. Current Controlled Trials (ISRCTN54036115).

Problem Posing with the Multiplication Table

ERIC Educational Resources Information Center

Dickman, Benjamin

2014-01-01

Mathematical problem posing is an important skill for teachers of mathematics, and relates readily to mathematical creativity. This article gives a bit of background information on mathematical problem posing, lists further references to connect problem posing and creativity, and then provides 20 problems based on the multiplication table to be…

Definition of life law and the situation with problems of China's life jurisprudence.

PubMed

Liu, Changqiu

2008-12-01

Life law is a new conception brought by the development of modern life science and biotechnology. There are many different ideas on the conception of life law in academy. The definition of life law should be footed on the domain of bioethics. Based on bioethics, life law is a group of legislations which are enacted or acknowledged by the state and implemented by the state compulsively with the goal of regulating all types of relations revolving the survival as well as terminal of human beings and some other creatures which play important roles in the maintenance of human's life and health. There are many problems in China's study on science of life law, which need paying special attention to by China's scholars.

An application of computer aided requirements analysis to a real time deep space system

NASA Technical Reports Server (NTRS)

Farny, A. M.; Morris, R. V.; Hartsough, C.; Callender, E. D.; Teichroew, D.; Chikofsky, E.

1981-01-01

The entire procedure of incorporating the requirements and goals of a space flight project into integrated, time ordered sequences of spacecraft commands, is called the uplink process. The Uplink Process Control Task (UPCT) was created to examine the uplink process and determine ways to improve it. The Problem Statement Language/Problem Statement Analyzer (PSL/PSA) designed to assist the designer/analyst/engineer in the preparation of specifications of an information system is used as a supporting tool to aid in the analysis. Attention is given to a definition of the uplink process, the definition of PSL/PSA, the construction of a PSA database, the value of analysis to the study of the uplink process, and the PSL/PSA lessons learned.

[Discussion of some problems in the new centurial planning material the therapeutics of acupuncture and moxibustion].

PubMed

Yang, Yun-kuan; Hu, You-ping; Wang, Yan

2006-11-01

Some problems were found for argument in the teaching of The Therapeutics of Acupuncture & Moxibustion, the new centurial national advanced Chinese medical school's planning material, including errors in compiling, some concepts lacking definition, and some acupuncture treatment methods in the material deviating off clinical practice, etc.. Study on these problems so as to make the teaching material more perfect, more scientific, accurate and authoritative.

Etiological Beliefs, Treatments, Stigmatizing Attitudes toward Schizophrenia. What Do Italians and Israelis Think?

PubMed

Mannarini, Stefania; Boffo, Marilisa; Rossi, Alessandro; Balottin, Laura

2017-01-01

Background: Although scientific research on the etiology of mental disorders has improved the knowledge of biogenetic and psychosocial aspects related to the onset of mental illness, stigmatizing attitudes and behaviors are still very prevalent and pose a significant social problem. Aim: The aim of this study was to deepen the knowledge of how attitudes toward people with mental illness are affected by specific personal beliefs and characteristics, such as culture and religion of the perceiver. More precisely, the main purpose is the definition of a structure of variables, namely perceived dangerousness, social closeness, and avoidance of the ill person, together with the beliefs about the best treatment to be undertaken and the sick person' gender, capable of describing the complexity of the stigma construct in particular as far as schizophrenia is concerned. Method: The study involved 305 university students, 183 from the University of Padua, Italy, and 122 from the University of Haifa, Israel. For the analyses, a latent class analysis (LCA) approach was chosen to identify a latent categorical structure accounting for the covariance between the observed variables. Such a latent structure was expected to be moderated by cultural background (Italy versus Israel) and religious beliefs, whereas causal beliefs, recommended treatment, dangerousness, social closeness, and public avoidance were the manifest variables, namely the observed indicators of the latent variable. Results: Two sets of results were obtained. First, the relevance of the manifest variables as indicators of the hypothesized latent variable was highlighted. Second, a two-latent-class categorical dimension represented by prejudicial attitudes, causal beliefs, and treatments concerning schizophrenia was found. Specifically, the differential effects of the two cultures and the religious beliefs on the latent structure and their relations highlighted the relevance of the observed variables as indicators of the expected latent variable. Conclusion: The present study contributes to the improvement of the understanding of how attitudes toward people with mental illness are affected by specific personal beliefs and characteristics of the perceiver. The definition of a structure of variables capable of describing the complexity of the stigma construct in particular as far as schizophrenia is concerned was achieved from a cross-cultural perspective.

Black lung: the social production of diseas

DOE Office of Scientific and Technical Information (OSTI.GOV)

Smith, B.E.

1981-01-01

The black lung movement that erupted in West Virginia in 1968 was not simply a struggle for recognition of an occupational disease; it grew into a bitter controversy over who would control the definition of that disease. This article examines the historical background and medical politics of that controversy, arguing that black lung was socially produced and defined on several different levels. As a medical construct, the changing definitions of this disease can be traced to major shifts in the political economy of the coal industry. As an occupational disease, the history of black lung is internally related to themore » history of the workplace in which it is produced. As the object of a mass movement, black lung acquired a political definition that grew out of the collective experience of miners and their families. The definition of disease with which black lung activists challenged the medical establishment has historical roots and justification; their experience suggests that other health advocates may need to redefine the diseases they hope to eradicate.« less

Globally Convergent Numerical Methods for Coefficient Inverse Problems

DTIC Science & Technology

2008-09-23

backgrounds. Probing radiations are usually thought as electric and acoustic waves for the first two applications and light originated by lasers in...fundamental laws of physics. Electric , acoustic or light scattering properties of both unknown targets and the backgrounds are described by coefficients of...with the back-reflected data here, Army applications are quite feasible. The 2-D inverse problem of the determination of the unknown electric

Knowledge Acquisition: A Review of Tools and Ideas.

DTIC Science & Technology

1987-08-01

tools. However, none could be applied directly to solving the problem of acquiring knowledge for the ASPA. RECOMMENDATIONS Develop a tool based on...the social sciences. BACKGROUND Because of the newness and complexity of the knowledge acquisition problem, the background of the knowledge...4. Minimal (does not incorporate any unnecessary complexities ) 5. Expected (experts are not in disagreement over any important aspect) (Grover 1983

The Effects of Problem-Based Learning on Metacognitive Awareness and Attitudes toward Chemistry of Prospective Teachers with Different Academic Backgrounds

ERIC Educational Resources Information Center

Tosun, Cemal; Senocak, Erdal

2013-01-01

The aim of this study was to reveal the effects of Problem-based Learning (PBL) on the metacognitive awareness and attitudes toward chemistry of teacher candidates with different academic backgrounds. The study was carried out on one group using both pre-and post-test experimental studies. The findings of the study were obtained through…

The terminal area automated path generation problem

NASA Technical Reports Server (NTRS)

Hsin, C.-C.

1977-01-01

The automated terminal area path generation problem in the advanced Air Traffic Control System (ATC), has been studied. Definitions, input, output and the interrelationships with other ATC functions have been discussed. Alternatives in modeling the problem have been identified. Problem formulations and solution techniques are presented. In particular, the solution of a minimum effort path stretching problem (path generation on a given schedule) has been carried out using the Newton-Raphson trajectory optimization method. Discussions are presented on the effect of different delivery time, aircraft entry position, initial guess on the boundary conditions, etc. Recommendations are made on real-world implementations.

2nd Generation RLV Risk Reduction Definition Program: Pratt & Whitney Propulsion Risk Reduction Requirements Program (TA-3 & TA-4)

NASA Technical Reports Server (NTRS)

Matlock, Steve

2001-01-01

This is the final report and addresses all of the work performed on this program. Specifically, it covers vehicle architecture background, definition of six baseline engine cycles, reliability baseline (space shuttle main engine QRAS), and component level reliability/performance/cost for the six baseline cycles, and selection of 3 cycles for further study. This report further addresses technology improvement selection and component level reliability/performance/cost for the three cycles selected for further study, as well as risk reduction plans, and recommendation for future studies.

Natural Hazard Problem and Solution Definition in the News Media: the Case of Tropical Storm Allison

NASA Astrophysics Data System (ADS)

Lindquist, Eric; Mosher-Howe, Katrina

2010-05-01

Focusing events such as natural or technological disasters can have significant impacts on public policy and planning in both the near and long term. These impacts can manifest at different temporal scales ranging from the period of immediate attention and disaster relief through the period of recovery and reconstruction and beyond. These impacts and associated decisions can be studied in retrospect and understood as not only short-term reactions, but as long-term components of subsequent natural hazard planning and public policy. By studying in detail how an event was defined, and the policy and planning alternatives that were raised or recommended in response to a disaster event, we can better understand the role that disaster-related focusing events play in the long-term evolution of a community's public policy, infrastructural planning efforts, and responses to natural disasters. This paper will use a focusing event framework to explore the local and regional policy impacts over time of a major urban flood in Houston, Texas, Tropical Storm Allison. Tropical Storm Allison (TSA), dropped 36 inches of rain on Houston over a period of four days in early June 2001, and was responsible for 22 deaths, 70,000 flood damaged homes, and 5 billion in damage to the region. The primary data source for this effort is a database of 500 articles from the major regional newspaper, the Houston Chronicle, over the period of 2001 through 2008. These articles were coded for multiple variables, including, cause, effect and impact (financial and social), blame, problem and solution definition and solution acceptance). This paper focuses primarily on the measures of problem definition (how was TSA, as an event, defined in the media, for example, as an act of God, or as a result of poor planning or decision making, etc), and on solution definition (what solutions were proposed to mitigate or adapt to future storms of this magnitude, how were they linked to the definition of the problem, and what was the perceived acceptability of such solutions among divers stakeholders). As such, this paper will contribute to our efforts to further link the social and policy sciences theory and methods with natural hazards research.

Self-management interventions: Proposal and validation of a new operational definition.

PubMed

Jonkman, Nini H; Schuurmans, Marieke J; Jaarsma, Tiny; Shortridge-Baggett, Lillie M; Hoes, Arno W; Trappenburg, Jaap C A

2016-12-01

Systematic reviews on complex interventions like self-management interventions often do not explicitly state an operational definition of the intervention studied, which may impact the review's conclusions. This study aimed to propose an operational definition of self-management interventions and determine its discriminative performance compared with other operational definitions. Systematic review of definitions of self-management interventions and consensus meetings with self-management research experts and practitioners. Self-management interventions were defined as interventions that aim to equip patients with skills to actively participate and take responsibility in the management of their chronic condition in order to function optimally through at least knowledge acquisition and a combination of at least two of the following: stimulation of independent sign/symptom monitoring, medication management, enhancing problem-solving and decision-making skills for medical treatment management, and changing their physical activity, dietary, and/or smoking behavior. This definition substantially reduced the number of selected studies (255 of 750). In two preliminary expert meetings (n = 6), the proposed definition was identifiable for self-management research experts and practitioners (80% and 60% agreement, respectively). Future systematic reviews must carefully consider the operational definition of the intervention studied because the definition influences the selection of studies on which conclusions and recommendations for clinical practice are based. Copyright © 2016 Elsevier Inc. All rights reserved.

Robust finger vein ROI localization based on flexible segmentation.

PubMed

Lu, Yu; Xie, Shan Juan; Yoon, Sook; Yang, Jucheng; Park, Dong Sun

2013-10-24

Finger veins have been proved to be an effective biometric for personal identification in the recent years. However, finger vein images are easily affected by influences such as image translation, orientation, scale, scattering, finger structure, complicated background, uneven illumination, and collection posture. All these factors may contribute to inaccurate region of interest (ROI) definition, and so degrade the performance of finger vein identification system. To improve this problem, in this paper, we propose a finger vein ROI localization method that has high effectiveness and robustness against the above factors. The proposed method consists of a set of steps to localize ROIs accurately, namely segmentation, orientation correction, and ROI detection. Accurate finger region segmentation and correct calculated orientation can support each other to produce higher accuracy in localizing ROIs. Extensive experiments have been performed on the finger vein image database, MMCBNU_6000, to verify the robustness of the proposed method. The proposed method shows the segmentation accuracy of 100%. Furthermore, the average processing time of the proposed method is 22 ms for an acquired image, which satisfies the criterion of a real-time finger vein identification system.

Robust Finger Vein ROI Localization Based on Flexible Segmentation

PubMed Central

Lu, Yu; Xie, Shan Juan; Yoon, Sook; Yang, Jucheng; Park, Dong Sun

2013-01-01

Finger veins have been proved to be an effective biometric for personal identification in the recent years. However, finger vein images are easily affected by influences such as image translation, orientation, scale, scattering, finger structure, complicated background, uneven illumination, and collection posture. All these factors may contribute to inaccurate region of interest (ROI) definition, and so degrade the performance of finger vein identification system. To improve this problem, in this paper, we propose a finger vein ROI localization method that has high effectiveness and robustness against the above factors. The proposed method consists of a set of steps to localize ROIs accurately, namely segmentation, orientation correction, and ROI detection. Accurate finger region segmentation and correct calculated orientation can support each other to produce higher accuracy in localizing ROIs. Extensive experiments have been performed on the finger vein image database, MMCBNU_6000, to verify the robustness of the proposed method. The proposed method shows the segmentation accuracy of 100%. Furthermore, the average processing time of the proposed method is 22 ms for an acquired image, which satisfies the criterion of a real-time finger vein identification system. PMID:24284769

THE DISCOUNTED REPRODUCTIVE NUMBER FOR EPIDEMIOLOGY

PubMed Central

Reluga, Timothy C.; Medlock, Jan; Galvani, Alison

2013-01-01

The basic reproductive number, , and the effective reproductive number, , are commonly used in mathematical epidemiology as summary statistics for the size and controllability of epidemics. However, these commonly used reproductive numbers can be misleading when applied to predict pathogen evolution because they do not incorporate the impact of the timing of events in the life-history cycle of the pathogen. To study evolution problems where the host population size is changing, measures like the ultimate proliferation rate must be used. A third measure of reproductive success, which combines properties of both the basic reproductive number and the ultimate proliferation rate, is the discounted reproductive number . The discounted reproductive number is a measure of reproductive success that is an individual’s expected lifetime offspring production discounted by the background population growth rate. Here, we draw attention to the discounted reproductive number by providing an explicit definition and a systematic application framework. We describe how the discounted reproductive number overcomes the limitations of both the standard reproductive numbers and proliferation rates, and show that is closely connected to Fisher’s reproductive values for different life-history stages PMID:19364158

Solution state nuclear magnetic resonance spectroscopy for biological metabolism and pathway intermediate analysis.

PubMed

Nealon, Gareth L; Howard, Mark J

2016-12-15

Using nuclear magnetic resonance (NMR) spectroscopy in the study of metabolism has been immensely popular in medical- and health-related research but has yet to be widely applied to more fundamental biological problems. This review provides some NMR background relevant to metabolism, describes why 1 H NMR spectra are complex as well as introducing relevant terminology and definitions. The applications and practical considerations of NMR metabolic profiling and 13 C NMR-based flux analyses are discussed together with the elegant 'enzyme trap' approach for identifying novel metabolic pathway intermediates. The importance of sample preparation and data analysis are also described and explained with reference to data precision and multivariate analysis to introduce researchers unfamiliar with NMR and metabolism to consider this technique for their research interests. Finally, a brief glance into the future suggests NMR-based metabolism has room to expand in the 21st century through new isotope labels, and NMR technologies and methodologies. © 2016 The Author(s). published by Portland Press Limited on behalf of the Biochemical Society.

Arthroscopic management of the painful total elbow arthroplasty

PubMed Central

Bain, Gregory I

2015-01-01

Background Failure of total elbow arthroplasty is more common than after other major joint arthroplasties and is often a result of aseptic loosening, peri-prosthetic infection, fracture and instability. Infection can be a devastating complication, yet there are no established guidelines for the pre-operative diagnosis of total elbow peri-prosthetic infection. This is because pre-operative clinical, radiographic and biochemical tests are often unreliable. Methods Using three case examples, a standardized protocol for the clinical and arthroscopic assessment of the painful total elbow arthroplasty is described. This is used to provide a mechanical and microbiological diagnosis of the patient’s pain. Results There have been no complications resulting from the use of this technique in the three patients described, nor in any other patient to date. Conclusions The staged protocol described in the present study, utilizing arthroscopic assessment, has refined the approach to the painful total elbow arthroplasty because it directly influences the definitive surgical management of the patient. It is recommended that other surgeons follow the principles outlined in the present study when faced with this challenging problem. PMID:27583000

Space Station Freedom biomedical monitoring and countermeasures: Biomedical facility hardware catalog

NASA Technical Reports Server (NTRS)

1990-01-01

This hardware catalog covers that hardware proposed under the Biomedical Monitoring and Countermeasures Development Program supported by the Johnson Space Center. The hardware items are listed separately by item, and are in alphabetical order. Each hardware item specification consists of four pages. The first page describes background information with an illustration, definition and a history/design status. The second page identifies the general specifications, performance, rack interface requirements, problems, issues, concerns, physical description, and functional description. The level of hardware design reliability is also identified under the maintainability and reliability category. The third page specifies the mechanical design guidelines and assumptions. Described are the material types and weights, modules, and construction methods. Also described is an estimation of percentage of construction which utilizes a particular method, and the percentage of required new mechanical design is documented. The fourth page analyzes the electronics, the scope of design effort, and the software requirements. Electronics are described by percentages of component types and new design. The design effort, as well as, the software requirements are identified and categorized.

Thermal modeling of lesion growth with radiofrequency ablation devices

PubMed Central

Chang, Isaac A; Nguyen, Uyen D

2004-01-01

Background Temperature is a frequently used parameter to describe the predicted size of lesions computed by computational models. In many cases, however, temperature correlates poorly with lesion size. Although many studies have been conducted to characterize the relationship between time-temperature exposure of tissue heating to cell damage, to date these relationships have not been employed in a finite element model. Methods We present an axisymmetric two-dimensional finite element model that calculates cell damage in tissues and compare lesion sizes using common tissue damage and iso-temperature contour definitions. The model accounts for both temperature-dependent changes in the electrical conductivity of tissue as well as tissue damage-dependent changes in local tissue perfusion. The data is validated using excised porcine liver tissues. Results The data demonstrate the size of thermal lesions is grossly overestimated when calculated using traditional temperature isocontours of 42°C and 47°C. The computational model results predicted lesion dimensions that were within 5% of the experimental measurements. Conclusion When modeling radiofrequency ablation problems, temperature isotherms may not be representative of actual tissue damage patterns. PMID:15298708

From Clock Synchronization to Dark Matter as a Relativistic Inertial Effect

NASA Astrophysics Data System (ADS)

Lusanna, Luca

Clock synchronization leads to the definition of instantaneous 3-spaces (to be used as Cauchy surfaces) in non-inertial frames, the only ones allowed by the equivalence principle. ADM canonical tetrad gravity in asymptotically Minkowskian space-times can be described in this framework. This allows to find the York canonical basis in which the inertial (gauge) and tidal (physical) degrees of freedom of the gravitational field can be identified. A Post-Minkowskian linearization with respect to the asymptotic Minkowski metric (asymptotic background) allows to solve the Dirac constraints in non-harmonic 3-orthogonal gauges and to find non-harmonic TT gravitational waves. The inertial gauge variable York time (the trace of the extrinsic curvature of the 3-space) describes the general relativistic freedom in clock synchronization. After a digression on the gauge problem in general relativity, it is shown that dark matter, whose experimental signatures are the rotation curves and the mass of galaxies, may be described (at least partially) as an inertial relativistic effect (absent in Newton gravity) connected with the York time.

A New Equivalence Theory Method for Treating Doubly Heterogeneous Fuel - I. Theory

DOE PAGES

Williams, Mark L.; Lee, Deokjung; Choi, Sooyoung

2015-03-04

A new methodology has been developed to treat resonance self-shielding in doubly heterogeneous very high temperature gas-cooled reactor systems in which the fuel compact region of a reactor lattice consists of small fuel grains dispersed in a graphite matrix. This new method first homogenizes the fuel grain and matrix materials using an analytically derived disadvantage factor from a two-region problem with equivalence theory and intermediate resonance method. This disadvantage factor accounts for spatial self-shielding effects inside each grain within the framework of an infinite array of grains. Then the homogenized fuel compact is self-shielded using a Bondarenko method to accountmore » for interactions between the fuel compact regions in the fuel lattice. In the final form of the equations for actual implementations, the double-heterogeneity effects are accounted for by simply using a modified definition of a background cross section, which includes geometry parameters and cross sections for both the grain and fuel compact regions. With the new method, the doubly heterogeneous resonance self-shielding effect can be treated easily even with legacy codes programmed only for a singly heterogeneous system by simple modifications in the background cross section for resonance integral interpolations. This paper presents a detailed derivation of the new method and a sensitivity study of double-heterogeneity parameters introduced during the derivation. The implementation of the method and verification results for various test cases are presented in the companion paper.« less

Advanced Background Subtraction Applied to Aeroacoustic Wind Tunnel Testing

NASA Technical Reports Server (NTRS)

Bahr, Christopher J.; Horne, William C.

2015-01-01

An advanced form of background subtraction is presented and applied to aeroacoustic wind tunnel data. A variant of this method has seen use in other fields such as climatology and medical imaging. The technique, based on an eigenvalue decomposition of the background noise cross-spectral matrix, is robust against situations where isolated background auto-spectral levels are measured to be higher than levels of combined source and background signals. It also provides an alternate estimate of the cross-spectrum, which previously might have poor definition for low signal-to-noise ratio measurements. Simulated results indicate similar performance to conventional background subtraction when the subtracted spectra are weaker than the true contaminating background levels. Superior performance is observed when the subtracted spectra are stronger than the true contaminating background levels. Experimental results show limited success in recovering signal behavior for data where conventional background subtraction fails. They also demonstrate the new subtraction technique's ability to maintain a proper coherence relationship in the modified cross-spectral matrix. Beam-forming and de-convolution results indicate the method can successfully separate sources. Results also show a reduced need for the use of diagonal removal in phased array processing, at least for the limited data sets considered.

Definitions and methods of measuring and reporting on injurious falls in randomised controlled fall prevention trials: a systematic review

PubMed Central

2012-01-01

Background The standardisation of the assessment methodology and case definition represents a major precondition for the comparison of study results and the conduction of meta-analyses. International guidelines provide recommendations for the standardisation of falls methodology; however, injurious falls have not been targeted. The aim of the present article was to review systematically the range of case definitions and methods used to measure and report on injurious falls in randomised controlled trials (RCTs) on fall prevention. Methods An electronic literature search of selected comprehensive databases was performed to identify injurious falls definitions in published trials. Inclusion criteria were: RCTs on falls prevention published in English, study population ≥ 65 years, definition of injurious falls as a study endpoint by using the terms "injuries" and "falls". Results The search yielded 2089 articles, 2048 were excluded according to defined inclusion criteria. Forty-one articles were included. The systematic analysis of the methodology applied in RCTs disclosed substantial variations in the definition and methods used to measure and document injurious falls. The limited standardisation hampered comparability of study results. Our results also highlight that studies which used a similar, standardised definition of injurious falls showed comparable outcomes. Conclusions No standard for defining, measuring, and documenting injurious falls could be identified among published RCTs. A standardised injurious falls definition enhances the comparability of study results as demonstrated by a subgroup of RCTs used a similar definition. Recommendations for standardising the methodology are given in the present review. PMID:22510239

TORO II: A finite element computer program for nonlinear quasi-static problems in electromagnetics: Part 1, Theoretical background

DOE Office of Scientific and Technical Information (OSTI.GOV)

Gartling, D.K.

The theoretical and numerical background for the finite element computer program, TORO II, is presented in detail. TORO II is designed for the multi-dimensional analysis of nonlinear, electromagnetic field problems described by the quasi-static form of Maxwell`s equations. A general description of the boundary value problems treated by the program is presented. The finite element formulation and the associated numerical methods used in TORO II are also outlined. Instructions for the use of the code are documented in SAND96-0903; examples of problems analyzed with the code are also provided in the user`s manual. 24 refs., 8 figs.

From the exposome to mechanistic understanding of chemical-induced adverse effects

EPA Science Inventory

BACKGROUND: Current definitions of the exposome expand beyond the initial idea to consider the totality of exposure and aim to relate to biological effects. While the exposome has been established for human health, its principles can be extended to include broader ecological issu...

Language as Cultural Practice: Mexicanos en el Norte.

ERIC Educational Resources Information Center

Schecter, Sandra R.; Bayley, Robert

This book offers an ethnographic account of language socialization practices within Mexican-background families residing in California and Texas. It illustrates cases where language is used by speakers to choose between alternative self-definitions and where language interacts differentially with other defining categories (ethnicity, gender, and…

Effect of physical activity on frailty and associated negative outcomes: the LIFE randomized trial

USDA-ARS?s Scientific Manuscript database

Background: Limited evidence suggests that physical activity may prevent frailty and associated negative outcomes in older adults. Definitive data from large, long-term, randomized trials are lacking. Objective: To determine whether a long-term structured moderate-intensity physical activity (PA) p...

Affirmative Action: The Scheduled Castes and the Scheduled Tribes.

ERIC Educational Resources Information Center

Sivaramayya, B.

This paper considers Indian affirmative action policies that provide reservations (quotas) in favor of two disadvantaged groups, the scheduled castes and the scheduled tribes. First, definitions and background are presented. The scheduled castes ("untouchables") are said to suffer from social segregation, and the scheduled tribes from…

Accommodating the Spectrum of Individual Abilities. Clearinghouse Publication 81.

ERIC Educational Resources Information Center

Commission on Civil Rights, Washington, DC.

The monograph addresses legal issues involving discrimination against handicapped persons and the key legal requirement of reasonable accommodation. Four chapters in Part I examine background issues, including definitions and statistical overviews of handicaps; historical attitudes toward handicapped persons and an analysis of the extent of…

Emergent Literacy of Deaf Children

ERIC Educational Resources Information Center

Williams, Cheri

2004-01-01

This article reviews the literature on emergent literacy in young deaf children, focusing on the nature and course of both emergent reading and emergent writing. Beginning with definitions and background information concerning emergent literacy as a field of study, it examines instructional approaches that support emergent literacy learning. The…

Perceptions and Correlates of Peer-Victimization and Bullying

ERIC Educational Resources Information Center

Hunter, Simon C.; Boyle, James M. E.; Warden, David

2007-01-01

Background: The experiences of peer-victimization and bullying are often treated empirically as though they are conceptually indistinct. Both involve repeated aggression, but definitions of bullying additionally emphasize the importance of aggressor intent and imbalance of power between the aggressor and the victim (Olweus, 1978; Whitney &…

Using Records of Achievement in Higher Education.

ERIC Educational Resources Information Center

Assiter, Alison, Ed.; Shaw, Eileen, Ed.

This collection of 22 essays examines the use of records of achievement (student profiles or portfolios) in higher and vocational education in the United Kingdom. They include: (1) "Records of Achievement: Background, Definitions, and Uses" (Alison Assiter and Eileen Shaw); (2) "Profiling in Higher Education" (Alison Assiter…

A Re-Examination of the Argument against Problem-Based Learning in the Classroom

ERIC Educational Resources Information Center

Bryant, Lauren H.

2011-01-01

The primary purpose of this study is to examine Kirschner, Sweller, and Clark's (2006) argument against problem-based learning (PBL) by analyzing research used to support their stance. The secondary purpose is to develop a definition of PBL that helps practitioners use this technique. Seven studies were analyzed to determine whether the PBL…

Problem Definition and Solution Strategies in Dental Practice. Executive Summary, September 19, 1979-October 31, 1980.

ERIC Educational Resources Information Center

Dane, J. K.; And Others

An executive summary of a study designed to investigate the identification and solution of clinical and nonclinical problems in dental practice is presented. The study used a combination of structured group meetings of individuals involved in dentistry and related areas and written workbooks completed by participants. A steering committee advised…

Towards Detection of Learner Misconceptions in a Medical Learning Environment: A Subgroup Discovery Approach

ERIC Educational Resources Information Center

Poitras, Eric G.; Doleck, Tenzin; Lajoie, Susanne P.

2018-01-01

Ill-structured problems, by definition, have multiple paths to a solution and are multifaceted making automated assessment and feedback a difficult challenge. Diagnostic reasoning about medical cases meet the criteria of ill-structured problem solving since there are multiple solution paths. The goal of this study was to develop an adaptive…

Wine and Maths: Mathematical Solutions to Wine-Inspired Problems

ERIC Educational Resources Information Center

Cadeddu, L.; Cauli, A.

2018-01-01

We deal with an application of partial differential equations to the correct definition of a wine cellar. We present some historical details about this problem. We also discuss how to build or renew a wine cellar, creating ideal conditions for the ageing process and improving the quality of wines. Our goal is to calculate the optimal depth…

The "Dual Usage Problem" in the Explanations of "Joint Attention" and Children's Socioemotional Development: A Reconceptualization

ERIC Educational Resources Information Center

Tasker, Susan L.; Schmidt, Louis A.

2008-01-01

The term "joint attention", which first gained currency in the early 1960s in studies of the development of language and symbolic thought, remains significant in the developmental literature. However, its meaning is unclear. A definitional problem exists similar to what Patterson [Patterson, M. L. (1982). "A sequential functional model of…