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1

Water Quality Considerations and Related Dishwashing Problems.  

ERIC Educational Resources Information Center

A number of the chemical and physical factors which cause dishwashing problems are presented in a series of charts. Water quality considerations are vital, but the importance of good housekeeping and proper operating practices cannot and must not be minimized. Topics discussed include--(1) dissolved minerals, (2) dissolved gases, (3) detergents,…

McClelland, Nina I.

2

Perceptions of Neighborhood Problems and Health-Related Quality of Life  

ERIC Educational Resources Information Center

This article examines the association between perceptions of neighborhood problems and health-related quality of life (HRQOL) in a sample of New Zealand residents (n = 692). A modified version of the Neighborhood Problems Scale (originally developed by Steptoe and Feldman, 2001) and the World Health Organization Quality of Life (WHOQOL-BREF) were…

Hill, Erin M.; Shepherd, Daniel; Welch, David; Dirks, Kim N.; McBride, David

2012-01-01

3

Types and Qualities of Knowledge and Their Relations to Problem Solving in Physics  

ERIC Educational Resources Information Center

Based on empirical findings and theoretical considerations related to the field of expertise research, the importance of "types" and "qualities" of knowledge in relation to problem solving in physics was investigated. The students (N = 138) in this study had a level of competence that corresponds to an intensive beginner college course in physics.…

Friege, Gunnar; Lind, Gunter

2006-01-01

4

Gender-Related Quality of Parent-Child Interactions and Early Adolescent Problem Behaviors: Exploratory Study with Midwestern Samples  

ERIC Educational Resources Information Center

This article reports two exploratory studies testing a model guided by a social interactional perspective, positing an inverse relation between the quality of parent-child interactions and adolescent problem behaviors. It addresses mixed findings in the literature related to gender differences. Study 1 uses cross-sectional survey data from…

Spoth, Richard; Neppl, Tricia; Goldberg-Lillehoj, Catherine; Jung, Tony; Ramisetty-Mikler, Suhasini

2006-01-01

5

Health-related quality of life, cognitive functioning and behaviour problems in children with Langerhans cell histiocytosis  

Microsoft Academic Search

Background. This study was designed to evaluate generic and disease-specific health-related quality of life (HRQoL), cognitive functioning and behaviour problems of children with Langerhans Cell Histiocytosis (LCH). Furthermore, we investigated which medical determinants and social demographic factors were pre- dictive for HRQoL, cognitive functioning and behavioural problems. Procedure. In this cross-sectional case-control study 24 children ranging from 7 to 17

C. M. Jantien Vrijmoet-Wiersma; Vicky M. Kooloos; Hendrik M. Koopman; Annemarie M. Kolk; Ingrid van der Laan; Martha A. Grootenhuis; R. Maarten Egeler

2009-01-01

6

Power quality problems and solutions  

NASA Astrophysics Data System (ADS)

This paper addresses the power quality problems and solutions related to (i) wind power generation and (ii) large industrial customers. Intermittent nature of wind power affects the quality of its electrical power output. The usage of low cost energy saving equipments also generates harmonics and voltage flicker thus affects the quality of supply voltage. A wide rang of solutions are being already proposed with the development on power electronic devices and electrical machines. This paper is organized to discuss the (i) power quality problems in brief, (ii) four major developments in wind generator technologies and (iii) solutions to large industrial customers using Dynamic Voltage Restorer (DVR), Active Power Filter (APF) and Static Compensator (STATCOM). Finally development in power electronic devices' control is briefed in each of the devices, which has utilizes these power electronic devices with integrated solutions to solve number of power quality problems.

Atputharajah, A.; Ramachandaramurthy, V. K.; Pasupuleti, J.

2013-06-01

7

Household Water Quality Home Water Quality Problems  

E-print Network

Household Water Quality Home Water Quality Problems­ Causes and Treatments Blake Ross, Extension cause health problems, damage equipment or plumbing, or make the water undesirable due to taste, odor, appearance or staining. Waterrelated problems will be found primarily in homes serviced by a private water

Liskiewicz, Maciej

8

Reprocessing and reuse of waste tire rubber to solve air-quality related problems  

USGS Publications Warehouse

There is a potential for using waste tire rubber to make activated-carbon adsorbents for air-quality control applications. Such an approach provides a recycling path for waste tires and the production of new adsorbents from a low-cost waste material. Tire-derived activated carbons (TDACs) were prepared from waste tires. The resulting products are generally mesoporous, with N2-BET specific surface areas ranging from 239 to 1031 m2/g. TDACs were tested for their ability to store natural gas and remove organic compounds and mercury species from gas streams. TDACs are able to achieve 36% of the recommended adsorbed natural gas (methane) storage capacity for natural-gas-fueled vehicles. Equilibrium adsorption capacities for CH4 achieved by TDACs are comparable to Calgon BPL, a commercially available activated-carbon adsorbent. The acetone adsorption capacity for a TDAC is 67% of the adsorption capacity achieved by BPL at 1 vol % acetone. Adsorption capacities of mercury in simulated flue-gas streams are, in general, larger than adsorption capacities achieved by coal-derived activated carbons (CDACs) and BPL. Although TDACs may not perform as well as commercial adsorbents in some air pollution control applications, the potential lower cost of TDACS should be considered when evaluating economics.

Lehmann, C.M.B.; Rostam-Abadi, M.; Rood, M.J.; Sun, J.

1998-01-01

9

Problems related to water quality and algal control in Lopez Reservoir, San Luis Obispo County, California  

USGS Publications Warehouse

A study to determine the present enrichment status of Liopez Reservoir in San Luis Obispo county, California, and to evaluate copper sulfate algal treatment found that stratification in the reservoir regulates nutrient release and that algal control has been ineffective. Nuisance algal blooms, particularly from March to June, have been a problem in the warm multipurpose reservoir since it was initially filled following intense storms in 1968-69. The cyanophyte Anabaena unispora has been dominant; cospecies are the diatoms Stephanodiscus astraea and Cyclotella operculata, and the chlorophytes Pediastrum deplex and Sphaerocystis schroeteri. During an A. unispora bloom in May 1972 the total lake surface cell count was nearly 100,000 cells/ml. Thermal stratification from late spring through autumn results in oxygen deficiency in the hypolimnion and metalimnion caused by bacterial oxidation of organic detritus. The anaerobic conditions favor chemical reduction of organic matter, which constitute 10-14% of the sediment. As algae die, sink to the bottom, and decompose, nutrients are released to the hypolimnion , and with the autumn overturn are spread to the epilimnion. Algal blooms not only hamper recreation, but through depletion of dissolved oxygen in the epilimnion may have caused periodic fishkills. Copper sulfate mixed with sodium citrate and applied at 1.10-1.73 lbs/acre has not significantly reduced algal growth; a method for determining correct dosage is presented. (Lynch-Wisconsin)

Fuller, Richard H.; Averett, Robert C.; Hines, Walter G.

1975-01-01

10

Psychological Problems, Protective Factors and Health-Related Quality of Life in Youth Affected by Violence: The Burden of the Multiply Victimised  

ERIC Educational Resources Information Center

This study investigates self-rated mental health in terms of psychological problems, protective factors and health-related quality of life (HRQOL) in a nationally representative sample of adolescents (n = 6813) aged 11-17 involved in violence with varying frequency. Using MANCOVA and ANCOVA, youth with single and multiple histories of violent…

Schlack, Robert; Ravens-Sieberer, Ulrike; Petermann, Franz

2013-01-01

11

Parental Problem-Solving Abilities and the Association of Sickle Cell Disease Complications with Health-related Quality of Life for School-age Children  

PubMed Central

Children with sickle cell disease (SCD) are at risk for poor health-related quality of life (HRQOL). The current analysis sought to explore parent problem-solving abilities/skills as a moderator between SCD complications and HRQOL to evaluate applicability to pediatric SCD. At baseline, 83 children ages 6–12 years and their primary caregiver completed measures of the child HRQOL. Primary caregivers also completed a measure of social problem-solving. A SCD complications score was computed from medical record review. Parent problem-solving abilities significantly moderated the association of SCD complications with child self-report psychosocial HRQOL (p = .006). SCD complications had a direct effect on parent proxy physical and psychosocial child HRQOL. Enhancing parent problem-solving abilities may be one approach to improve HRQOL for children with high SCD complications; however, modification of parent perceptions of HRQOL may require direct intervention to improve knowledge and skills involved in disease management. PMID:24222378

Barakat, Lamia P.; Daniel, Lauren C.; Smith, Kelsey; Robinson, M. Renée; Patterson, Chavis A.

2013-01-01

12

Relations of parenting quality, interparental conflict, and overnights with mental health problems of children in divorcing families with high legal conflict.  

PubMed

The current study examined the associations between child mental health problems and the quality of maternal and paternal parenting, and how these associations were moderated by three contextual factors: quality of parenting by the other parent, interparental conflict, and the number of overnights parents had with the child. Data for the current study came from a sample of divorcing families who are in high legal conflict over developing or maintaining a parenting plan following divorce. Analyses revealed that the associations between child mental health problems and positive maternal and paternal parenting were moderated by the quality of parenting provided by the other parent and by the number of overnights children spent with parents, but not by the level of interparental conflict. When parenting by the other parent and number of overnights were considered together in the same model, only number of overnights moderated the relations between parenting and child-behavior problems. The results support the proposition that the well-being of children in high-conflict divorcing families is better when they spend adequate time with at least one parent who provides high-quality parenting. PMID:24098960

Sandler, Irwin N; Wheeler, Lorey A; Braver, Sanford L

2013-12-01

13

[Water and health-related problems, local perception and quality of water sources in a Toba (qom) community in the Impenetrable (Chaco, Argentina)].  

PubMed

We present a transdisciplinary study centering on aspects of environmental health of the Toba (qom) communities that relate to water and health problems of the Impenetrable Chaco region. Information was obtained through the methods and tools of participatory research, household participant observation, and ethnobotanical documentation of species related to water management and use. Vernacular terms referring to the suitability and taste of the water, as well as representations, attitudes and practices related to water collection and purification were recorded. In addition, a microbiological and physicochemical analysis of the water was performed and compared with the perceptual categories. It was observed that perceptual aspects were in tension with the hygienic quality of water. We documented phreatophyte plants, indicative of the presence of water, as well as plants that store water, act as flocculants, refresh the water or improve taste. The results of this research are discussed from an ecosystem approach and its relationship to the development of proposals for intervention. PMID:25237802

Martínez, Gustavo J; Beccaglia, Ana M; Llinares, Analía

2014-08-01

14

Global Problems in Mathematical Relativity  

E-print Network

____ 25 Global Problems in Mathematical Relativity Now, in contrast to Special Relativity, there are very definitely mathematical problems in General Relativity awaiting solution, and that was the topic of this programme. There are two approaches here: one may ask how this geometrically-based subject relates to other

15

DEMOS for RELATED RATE Problems  

NSDL National Science Digital Library

This demo provides a toolbox of visual aids that illustrate fundamental concepts for understanding and developing equations that model related rate problems. A gallery of animations for various problems is included.

Roberts, Lila F.

2002-02-11

16

AN APPLICATION OF THE RELATIVE WARPS ANALYSIS TO PROBLEMS IN HUMAN PALEONTOLOGY - WITH NOTES ON RAW DATA QUALITY  

Microsoft Academic Search

This study investigates the use of geometric morphometrics as well as methodological aspects specifically related to its application in paleoanthropology. Based on lateral photographs taken from a fossil sample of 58 specimens, a relative warps analysis was computed in order to assess the variation of cranial shape among various hominin groups. The fossil sample represents Middle and Late Pleistocene populations

MARTIN FRIEß

2003-01-01

17

A systematic review of the international published literature relating to quality of institutional care for people with longer term mental health problems  

Microsoft Academic Search

BACKGROUND: A proportion of people with mental health problems require longer term care in a psychiatric or social care institution. However, there are no internationally agreed quality standards for institutional care and no method to assess common care standards across countries. We aimed to identify the key components of institutional care for people with longer term mental health problems and

Tatiana L Taylor; Helen Killaspy; Christine Wright; Penny Turton; Sarah White; Thomas W Kallert; Mirjam Schuster; Jorge A Cervilla; Paulette Brangier; Jiri Raboch; Lucie Kališová; Georgi Onchev; Hristo Dimitrov; Roberto Mezzina; Kinou Wolf; Durk Wiersma; Ellen Visser; Andrzej Kiejna; Patryk Piotrowski; Dimitri Ploumpidis; Fragiskos Gonidakis; José Caldas-de-Almeida; Graça Cardoso; Michael B King

2009-01-01

18

Water quality problems of urban areas  

Microsoft Academic Search

The increases in population and building density that occur as predominantly rural catchment areas become progressively urbanised can have a far-reaching effect on the hydrological cycle, and therefore on both the quantity and quality of water resources. The success of management strategies intended to alleviate the flooding problems and to prevent the degradation of water quality within and downstream of

M. J. Hall; J. B. Ellis

1985-01-01

19

The Travelling Salesman Problem and Related Problems  

E-print Network

New formulations are presented for the Travelling Salesman problem, and their relationship to previous formulations is investigated. The new formulations are extended to include a variety of transportation scheduling ...

Gavish, Bezalel

20

Teaching Mathematical Word Problem Solving: The Quality of Evidence for Strategy Instruction Priming the Problem Structure  

ERIC Educational Resources Information Center

This study examined the quality of the research base related to strategy instruction priming the underlying mathematical problem structure for students with learning disabilities and those at risk for mathematics difficulties. We evaluated the quality of methodological rigor of 18 group research studies using the criteria proposed by Gersten et…

Jitendra, Asha K.; Petersen-Brown, Shawna; Lein, Amy E.; Zaslofsky, Anne F.; Kunkel, Amy K.; Jung, Pyung-Gang; Egan, Andrea M.

2015-01-01

21

Problem to Address: Local Air Quality  

NASA Technical Reports Server (NTRS)

This presentation discusses the problem of local air quality as it is affected by modern aircraft engine exhaust and the objective of this workshop. It begins with a discussion on the nature and sources of particulates and aerosols. The problems, and the technical considerations of how to regulate the aircraft emissions, are reviewed. There is no local (i.e., state or county) regulations of the aircraft operations. Amongst the conclusions are: (1) there is an inadequate database of information regarding the emittants from aircrafts. (2) That data which does exist represents older engines and aircraft, it is not representative of the advanced and future fleet.

Niedzwiecki, Richard W.

1999-01-01

22

Relating Preschool Quality to Children's Literacy Development  

ERIC Educational Resources Information Center

Preschool classrooms were investigated to determine the extent to which quality is related to children's literacy development. The study included 24 classrooms of 428 prekindergarten children in a large, urban Midwestern school district. Results suggest that global classroom quality and literacy environment quality are strongly related. Literacy…

Cunningham, Denise D.

2010-01-01

23

Health-Related Quality of Life  

Microsoft Academic Search

\\u000a This chapter provides an overview of the nature and status of quality of life evaluations of new medicines and other treatments\\u000a in clinical trials. There are two major aspects of quality of life: The environmental aspect of quality of life and health-related\\u000a quality of life. The environmental aspect of quality of life is often evaluated by organizations outside the medical

Bert Spilker

24

An Investigation Into HPLC Data Quality Problems  

NASA Technical Reports Server (NTRS)

This report summarizes the analyses and results produced by a five-member investigative team of Government, university, and industry experts, established by NASA HQ. The team examined data quality problems associated with high performance liquid chromatography (HPLC) analyses of pigment concentrations in seawater samples produced by the San Diego State University (SDSU) Center for Hydro-Optics and Remote Sensing (CHORS). This report shows CHORS did not validate the methods used before placing them into service to analyze field samples for NASA principal investigators (PIs), even though the HPLC literature contained easily accessible method validation procedures, and the importance of implementing them, more than a decade ago. In addition, there were so many sources of significant variance in the CHORS methodologies, that the HPLC system rarely operated within performance criteria capable of producing the requisite data quality. It is the recommendation of the investigative team to a) not correct the data, b) make all the data that was temporarily sequestered available for scientific use, and c) label the affected data with an appropriate warning, e.g., "These data are not validated and should not be used as the sole basis for a scientific result, conclusion, or hypothesis--independent corroborating evidence is required."

Hooker, Stanford B.; VanHeukelem, Laurie

2011-01-01

25

Water quality problems in Nogales, Sonora.  

PubMed Central

This article presents the results of a transboundary water quality monitoring program at the two Nogales area in the Arizona-Sonora border region. The program was carried out jointly in 1990 by U.S. and Mexican institutions. The results show pollution problems due to deficiencies in Nogales, Sonora municipal sewerage system, causing not only sewage spills in several parts of the city but also creating occasional transboundary problems. The results also showed potential illegal dumping of industrial hazardous waste (VOCs) into Nogales' municipal sewerage system. All of the organic compounds found in the sewage samples are solvents frequently used by the border industry. Occasional brakes of pipes spill the pollutants into the Nogales Wash, a water stream that runs parallel to Nogales' main sewerage line. Samples of the municipal water system showed no traces of pollutants. However, two rounds of samples detected concentrations of VOCs in wells used to supply water by trucks to low income neighborhoods in Nogales, Sonora. Ironically, the pollution detected in these wells has a greater impact in low income groups of the city that pay three to four times more per liter of water they consume, than the rest of the inhabitants with clean water from the municipal system. PMID:7621811

Sanchez, R A

1995-01-01

26

Teaching mathematical word problem solving: the quality of evidence for strategy instruction priming the problem structure.  

PubMed

This study examined the quality of the research base related to strategy instruction priming the underlying mathematical problem structure for students with learning disabilities and those at risk for mathematics difficulties. We evaluated the quality of methodological rigor of 18 group research studies using the criteria proposed by Gersten et al. and 10 single case design (SCD) research studies using criteria suggested by Horner et al. and the What Works Clearinghouse. Results indicated that 14 group design studies met the criteria for high-quality or acceptable research, whereas SCD studies did not meet the standards for an evidence-based practice. Based on these findings, strategy instruction priming the mathematics problem structure is considered an evidence-based practice using only group design methodological criteria. Implications for future research and for practice are discussed. PMID:23686999

Jitendra, Asha K; Petersen-Brown, Shawna; Lein, Amy E; Zaslofsky, Anne F; Kunkel, Amy K; Jung, Pyung-Gang; Egan, Andrea M

2015-01-01

27

[Alcohol-related problems in Cantabria].  

PubMed

It is a cross sectorial epidemiological community survey into a random sample of 1,816 adult people. The objetivo of our work is to test the existence of some social-demographic variables that can be accumulated to the existence of alcohol related problems. We found that the men, the young people, with low socioeconomic level, and semiurban style of life have the highest risk of alcohol related problems. 48% of the sample men have recognized any alcohol related problems during the previous year to our study. The highest problem prevalence is associated to increased alcohol consumption. After all, there are many people with low alcohol consumption who have alcohol related problems. PMID:7717148

Gutiérrez Pérez, A M; Díez Manrique, J F; Peña Martín, C; García Usieto, E

1995-01-01

28

Depression and Related Problems in University Students  

ERIC Educational Resources Information Center

Method: Depression and related problems were studied in a sample of 283 university students. Results: The students with high depression scores also had high scores on anxiety, intrusive thoughts, controlling intrusive thoughts and sleep disturbances scales. A stepwise regression suggested that those problems contributed to a significant proportion…

Field, Tiffany; Diego, Miguel; Pelaez, Martha; Deeds, Osvelia; Delgado, Jeannette

2012-01-01

29

Nintendo related injuries and other problems: review  

PubMed Central

Objective To identify all reported cases of injury and other problems caused by using a Nintendo video gaming system. Design Review. Data sources and review methods Search of PubMed and Embase in June 2014 for reports on injuries and other problems caused by using a Nintendo gaming system. Results Most of the 38 articles identified were case reports or case series. Injuries and problems ranged from neurological and psychological to surgical. Traditional controllers with buttons were associated with tendinitis of the extensor of the thumb. The joystick on the Nintendo 64 controller was linked to palmar ulceration. The motion sensitive Wii remote was associated with musculoskeletal problems and various traumas. Conclusions Most problems are mild and prevalence is low. The described injuries were related to the way the games are controlled, which varies according to the video game console. PMID:25515525

Heineman, Erik; Pierie, Jean-Pierre E N; ten Cate Hoedemaker, Henk O

2014-01-01

30

Water and related problems in coal-mine areas of Alabama. Water-resources investigations (interim)  

Microsoft Academic Search

Water-resource problems or potential problems in Alabama resulting from surface and subsurface coal mining include erosion and sedimentation, flooding, diversion of drainage, decline in water level, land subsidence, and the degradation of water quality. The degradation of water quality is the most serious and widespread coal-mine related problem in Alabama. The chemical quality of water in numerous streams draining coal-mine

A. L. Knight; J. G. Newton

1977-01-01

31

Pathological Gambling and Related Problems among Adolescents.  

ERIC Educational Resources Information Center

Evaluates the prevalence of pathological gambling and related problems among 3,426 students in junior and senior high schools in Quebec City. Results indicate that 77% have gambled in the last twelve months and 13% gamble at least once a week. Results also reveal that pathological gambling is associated with drug and alcohol use, poor grades, and…

Ladouceur, Robert; Boudreault, Normand; Jacques, Christian; Vitaro, Frank

1999-01-01

32

The Traveling Salesman and Related Stochastic Problems  

NASA Astrophysics Data System (ADS)

In the traveling salesman problem, one must find the length of the shortest closed tour visiting given ``cities''. We study the stochastic version of the problem, taking the locations of cities and the distances separating them to be random variables drawn from an ensemble. We consider first the ensemble where cities are placed in Euclidean space. We investigate how the optimum tour length scales with number of cities and with number of spatial dimensions. We then examine the analytical theory behind the random link ensemble, where distances between cities are independent random variables. Finally, we look at the related geometric issue of nearest neighbor distances, and find some remarkable universalities.

Percus, A. G.

1998-03-01

33

Relation Between Heart Rate and Problem Behaviors  

E-print Network

American Journal on Mental Retardation, 1999, Vol. 104, No. 4, 330-345 Relation Between Heart Rate and Problem Behaviors Rachel L. Freeman and Robert H. Horner University of Oregon Joe Reichle University of Minnesota A new... methodological approach for understanding self-injury, aggression, and property destruction exhibited by individuals with severe developmental disabilities was evaluated in this descriptive study. Measures of heart-rate changes before, during, and after...

Freeman, Rachel L.; Horner, Robert H.; Reichle, Joe

1999-01-01

34

Natural Resolution of Alcohol-Related Problems  

Microsoft Academic Search

The diverse research discussed here, ranging from surveys to RCTs to process-oriented naturalistic studies, converged to raise\\u000a previously overlooked research questions about relations between patterns of help-seeking and drinking problem resolutions.\\u000a Contrary to conventional views, treatment is neither a necessary nor a sufficient condition for resolution, which can occur\\u000a through a number of pathways and is influenced by extratherapeutic contextual

Jalie A. Tucker

35

Manufacturing Employers Report Widespread Problems with Labor Quality.  

ERIC Educational Resources Information Center

Labor quality is a chief concern of both rural and urban manufacturing employers. New skills required by advanced technology explain part of the problem, but dissatisfaction with work attitude is common to high- and low-tech employers. Lack of a high school diploma is linked to problems with worker skills and attitude. Employers are increasing…

Gale, Fred

1999-01-01

36

Quality-related variables at hepatological websites  

Microsoft Academic Search

Background. The amount of hepatology-related information available on the Internet has substantially increased, but little is known about the characteristics and quality of the websites.Aim. The aim of this study was to describe analytically and evaluate critically the information concerning three diseases of hepatological interest: chronic hepatitis, hemochromatosis and Caroli’s disease.Methods. In accordance with a validated method, the three search

M Fraquelli; D Conte; C Cammà; G Casazza; D Di Bona; P Rebulla; D Prati

2004-01-01

37

[Health problems related to occupational activities].  

PubMed

Statistical data obtained from insurance companies give certainly a good picture of work effects on health in the field of accidents. This is different for occupational diseases, which are more difficult to diagnose and which are recognized on the basis of medicolegal criteria. Statistics do not involve other aspects than diseases, such as discomfort, ergonomical questions, psychophysiological consequences and situations where there is a limited role of occupation. Prevention of work related health problems has to consider these characteristics and needs to be based on risk analysis, a prospective procedure. The advantage of such an approach is the possibility of adjustment to a changing work environment and to new technologies. PMID:8279200

Boillat, M A

1993-01-01

38

Relative locality and the soccer ball problem  

SciTech Connect

We consider the behavior of macroscopic bodies within the framework of relative locality [G. Amelino-Camelia, L. Freidel, J. Kowalski-Glikman, and L. Smolin, arXiv:1101.0931]. This is a recent proposal for Planck scale modifications of the relativistic dynamics of particles which are described as arising from deformations in the geometry of momentum space. We consider and resolve a common objection against such proposals, which is that, even if the corrections are small for elementary particles in current experiments, they are huge when applied to composite systems such as soccer balls, planets, and stars, with energies E{sub macro} much larger than M{sub P}. We show that this soccer ball problem does not arise within the framework of relative locality because the nonlinear effects for the dynamics of a composite system with N elementary particles appear at most of order E{sub macro}/N{center_dot}M{sub P}.

Amelino-Camelia, Giovanni [Dipartimento di Fisica, Universita La Sapienza and Sez. Roma1 INFN, P.le Moro 2, 00185 Roma (Italy); Freidel, Laurent; Smolin, Lee [Perimeter Institute for Theoretical Physics, 31 Caroline Street North, Waterloo, Ontario N2J 2Y5 (Canada); Kowalski-Glikman, Jerzy [Institute for Theoretical Physics, University of Wroclaw, Pl. Maxa Borna 9, 50-204 Wroclaw (Poland)

2011-10-15

39

On Problems Related to Primes: Some Ideas  

E-print Network

We present some new ideas on important problems related to primes. The topics of our discussion are: simple formulae for primes, twin primes, Sophie Germain primes, prime tuples less than or equal to a predefined number, and their infinitude; establishment of a kind of similarity between natural numbers and numbers that appear in an arithmetic progression, similar formulae for primes and the so called generalized twin primes in an arithmetic progression and their infinitude; generalization of Bertrand postulate and a Bertrand like postulate for twin primes; some elementary implications of a simple primality test, the use of Chinese remainder theorem in a possible proof of the Goldbach conjecture; Schinzel Sierpinski conjecture; and lastly the Mersenne primes and composites, Fermat primes, and their infinitude.

Dhananjay P. Mehendale

2014-08-18

40

INDOOR AIR QUALITY PROBLEMS AND ENGINEERING SOLUTIONS SYMPOSIUM  

EPA Science Inventory

Provide cosponsorship for the Indoor Air Quality Problems and Engineering Solutions Symposium to be held in Research Triangle Park on July 21-23, 2003. This is an international symposium that is held every 2 or 3 years. IEMB and AWMA (Air and Waste Management Association) have...

41

ECONOMIC/FINANCIAL ANALYSIS OF URBAN WATER QUALITY MANAGEMENT PROBLEMS  

EPA Science Inventory

Procedures for evaluating the technical, economic, and financial aspects of urban water quality management planning problems are presented. Accepted principles of benefit-cost analysis are used to conduct the economic analysis. Benefits are measured as the reduction in damages as...

42

Relating Actor Analysis Methods to Policy Problems  

Microsoft Academic Search

For a policy analyst the policy problem is the starting point for the policy analysis process. During this process the policy analyst structures the policy problem and makes a choice for an appropriate set of methods or techniques to analyze the problem (Goeller 1984). The methods of the policy analyst are often referred to as the toolbox or toolkit of

T. E. Van der Lei

2009-01-01

43

Separating Productivity and Quality Eects from Relative Prices  

Microsoft Academic Search

Based on a general equilibrium model, we derive a relative price func- tion which can be decomposed into productivity and quality eects. We then develop a method for inferring relative quality changes and apply that to US services versus US goods using NIPA data from 1946-2006. First, relative quality was decreasing after 1946 and has been increasing since the 1970s.

Thang Q. Nguyen

44

Quality Related Communication Approaches for Organic Food  

Microsoft Academic Search

As food quality becomes more complex, consumers tend to reduce their involvement in the food purchase and price becomes relevant, given the lack of information available on food products.The organic food sector provides high, complex food quality profiles and has therefore been seriously affected by this development. Some food SMEs are starting to emphasize certain quality factors, ie., sustainability in

A. Bodini; T. Richter; R. Felder

2009-01-01

45

Learning Related Visual Problems. ERIC Fact Sheet.  

ERIC Educational Resources Information Center

This fact sheet defines vision, outlines the visual skills needed for school achievement (ocular motility, binocularity, eye-hand coordination skills, and visual form perception), and describes how visual problems are evaluated and treated. The fact sheet also lists clues to look for when a visual problem is suspected, including the appearance of…

ERIC Clearinghouse on Handicapped and Gifted Children, Reston, VA.

46

EFFICIENCY PROBLEMS RELATED TO PERMANGANATE OXIDATION SCHEMES  

EPA Science Inventory

Oxidation schemes for the in-situ destruction of chlorinated solvents, using potassium permanganate, are receiving considerable attention. Indication from field studies and from our own work are that permanganate oxidation schemes have inherent problems that could severely limit...

47

Water and related problems in coal-mine areas of Alabama  

USGS Publications Warehouse

Water-resource problems or potential problems in Alabama resulting from surface and subsurface coal mining include erosion and sedimentation, flooding, diversion of drainage, decline in water level, land subsidence, and the degradation of water quality. The degradation of water quality is the most serious and widespread coal-mine related problem in Alabama. The chemical quality of water in numerous streams draining coal-mine areas has been altered drastically. The pH of water draining from mined areas commonly ranges from 2.1 to 5.0, generally has high sulfate and dissolved solids concentrations, is hard to very hard, and may contain objectionable amounts of iron. The detrimental quality of water in some streams may persist for decades after mining has ceased. Without proper safeguards, additional mining may cause a significant deterioration in the quality of water in major streams where the more mineralized mine waters are now diluted. (Woodard-USGS)

Knight, Alfred L.; Newton, John G.

1977-01-01

48

Some counting problems related to permutation groups  

E-print Network

in that of N.) Problem. How many (a) labelled, (b) unlabelled structures in Age (M)? As standard in combinatorial enumeration, labelled structures are based on the set {1, 2, . .,.n}; unlabelled structures many n-types for each n. This is part of the celebrated theorem of Engeler, Ryll

Cameron, Peter

49

The Gum nebula and related problems  

NASA Technical Reports Server (NTRS)

Papers were presented in conference sessions on the Gum nebula, the Vela X remnant, the hot stars gamma Velorum and zeta Puppis, the B associations in the Vela-Puppis complex, and pulsars. Ground-based optical and radio astronomy; rocket and satellite observations in the radio, visible, ultraviolet, and X-ray regions; and theoretical problems in the physical state of the interstellar medium, stellar evolution, and runaway star dynamics were considered.

Maran, S. P.; Brandt, J. C.; Stecher, T. P.

1971-01-01

50

The Quality of Registration of Clinical Trials: Still a Problem  

PubMed Central

Introduction The benefits of clinical trials registration include improved transparency on clinical trials for healthcare workers and patients, increased accountability of trialists, the potential to address publication bias and selective reporting, and possibilities for research collaboration and prioritization. However, poor quality of information in registered records of trials has been found to undermine these benefits in the past. Trialists' increasing experience with trial registration and recent developments in registration systems may have positively affected data quality. This study was conducted to investigate whether the quality of registration has improved. Methods We repeated a study from 2009, using the same methods and the same research team. A random sample of 400 records of clinical trials that were registered between 01/01/2012 and 01/01/2013 was taken from the International Clinical Trials Registry Platform (ICTRP) and assessed for the quality of information on 1) contact details, 2) interventions and 3) primary outcomes. Results were compared to the equivalent assessments from our previous study. Results There was a small and not statistically significant increase from 81.0% to 85.5% in the percentage of records that provided a name of a contact person. There was a significant increase from 68.7% to 74.9% in the number of records that provided either an email address or a telephone number. There was a significant increase from 44.2% to 51.9% in the number of intervention arms that were complete in registering intervention specifics. There was a significant increase from 38.2% to 57.6% in the number of primary outcomes that were specific measures with a meaningful timeframe. Approximately half of all trials continued to be retrospectively registered. Discussion There have been small but significant improvements in the quality of registration since 2009. Important problems with quality remain and continue to constitute an impediment to the meaningful utilization of registered trial information. PMID:24427293

Viergever, Roderik F.; Karam, Ghassan; Reis, Andreas; Ghersi, Davina

2014-01-01

51

Health Related Quality of Life in Common Variable Immunodeficiency  

PubMed Central

Purpose To quantify the health related quality of life in primary immunodeficiency patients. Materials and Methods We used generic health status and general psychological health questionnaires to determine the range of issues that needed to be considered in examining the burden of common variable immunodeficiency (CVID). Results The health status of patients with CVID was lower than that observed in normal subjects. Overall, Role-Physical and General Health scales correlated with a poorer clinical status. Surprisingly, the duration of disease did not influence health status. Being female, older, General Health Questionnaire-positive and alexithymic proved to be major risk factors associated with a poor health status. Patients with chronic lung disease and chronic diarrhea had the lowest values on the Medical Outcome Study, Short Form SF-36 (SF-36) scales. Disease severity perception was associated with the General Health Questionnaire and alexithymia status. Limitations in daily activities as a result of lower physical health were the major problems facing common variable immunodeficiency patients. Conclusion Our data underlined the importance of conducting a periodical health related quality of life assessment on patients with primary antibody deficiencies and, moreover, stressed the necessity of providing psychological support to at risk patients. PMID:22477006

Quinti, Isabella; Di Pietro, Cristina; Martini, Helene; Pesce, Anna Maria; Lombardi, Francesca; Baumghartner, Maddalena; Colantuono, Stefania; Milito, Cinzia

2012-01-01

52

Some studies on dark energy related problems  

E-print Network

In this work we perform some studies related to dark energy. Firstly, we propose a dynamical approach to explain the dark energy content of the universe. We assume that a massless scalar field couples to the Hubble parameter with some Planck-mass suppressed interactions. This scalar field developes a Hubble parameter-dependent (thus time-dependent) vacum expectation value, which renders a time-independent relative density for dark energy and thus can explain the coincidence of the dark energy density of the universe. Secondly, we assume the dark matter particle is meta-stable and decays very lately into the dark energy scalar field. Such a conversion of matter to dark energy can give an explanation for the starting time of the accelerating expansion of the universe. Thirdly, we introduce multiple Affleck-Dine fields to the landscape scenario of dark energy in order to have the required baryon-asymmetry universe.

Wang, F; Wang, Fei; Yang, Jin Min

2006-01-01

53

Some studies on dark energy related problems  

E-print Network

In this work we perform some studies related to dark energy. Firstly, we propose a dynamical approach to explain the dark energy content of the universe. We assume that a massless scalar field couples to the Hubble parameter with some Planck-mass suppressed interactions. This scalar field developes a Hubble parameter-dependent (thus time-dependent) vacum expectation value, which renders a time-independent relative density for dark energy and thus can explain the coincidence of the dark energy density of the universe. Secondly, we assume the dark matter particle is meta-stable and decays very lately into the dark energy scalar field. Such a conversion of matter to dark energy can give an explanation for the starting time of the accelerating expansion of the universe. Thirdly, we introduce multiple Affleck-Dine fields to the landscape scenario of dark energy in order to have the required baryon-asymmetry universe.

Fei Wang; Jin Min Yang

2005-04-06

54

GENOTYPE-RELATED FIBER QUALITY VARIABILITY  

Technology Transfer Automated Retrieval System (TEKTRAN)

The interaction of genotype with environment is important in genotype selection. The objective of this study was to assess fiber quality variability in four early maturity genotypes having different boll distribution patterns. Four cultivars (DP388, FM 958, PSE 355, and ST 474) which were part of...

55

Controlling alcohol-related global health problems.  

PubMed

Alcohol's adverse public health impact includes disease, injury, violence, disability, social problems, psychiatric illness, drunk driving, drug use, unsafe sex, and premature death. Furthermore, alcohol is a confirmed human carcinogen. The International Agency for Research on Cancer concluded that alcohol causes cancer of the oral cavity, pharynx, larynx, esophagus, liver, colon-rectum, and breast. World Cancer Research Fund/American Institute for Cancer Research concluded that the evidence justifies recommending avoidance of consuming any alcohol, even in small quantities. Despite being responsible for 3.8% of global deaths (2,255,000 deaths) and 4.6% of global disability-adjusted life years in 2004, alcohol consumption is increasing rapidly in China and Asia. Contrary to the World Health Assembly's call for global control action, Hong Kong has reduced wine and beer taxes to zero since 2008. An International Framework Convention on Alcohol Control is urgently needed. Increasing alcohol taxation and banning alcohol advertisement and promotion are among the most effective policies. PMID:20566555

Lam, Tai Hing; Chim, David

2010-07-01

56

The Gum Nebula and Related Problems  

NASA Technical Reports Server (NTRS)

Proceedings of a symposium concerning the Gum Nebula (GN) and related topics are reported. Papers presented include: Colin Gum and the discovery of the GN; identification of the GN as the fossil Stromgren sphere of Vela X Supernova; size and shape of GN; formation of giant H-2 regions following supernova explosions; radio astronomy Explorer 1 observations of GN; cosmic ray effects in the GN; low intensity H beta emission from the interstellar medium; and how to recognize and analyze GN. Astronomical charts and diagrams are included.

1973-01-01

57

Anomalous head posture related to visual problems.  

PubMed

The cause of the anomalous head posture (AHP) has been mainly assigned to ocular, orthopedic, and neurologic causes. The AHP can take the form of head tilt, face turn, chin up, chin down, or combined, depending on the specific etiology. However, there are many variations, and the type of the head posture cannot reliably predict the underlying cause. Ocular AHP is usually an attempt to improve visual acuity or binocularity. Since the etiology is not always obvious, we stress that these patients must be carefully evaluated by ophthalmologists. Our effort here is to offer the neurologist a thorough insight in the specific head posture pattern primarily related to visual disorders. PMID:24719022

Nucci, Paolo; Curiel, Batya; Lembo, Andrea; Serafino, Massimiliano

2015-04-01

58

Toward high-quality image communications: inverse problems in image processing  

NASA Astrophysics Data System (ADS)

Recently, image communications are becoming increasingly popular, and there is a growing need for consumers to be provided with high-quality services. Although the image communication services already exist over third-generation wireless networks, there are still obstacles that prevent high-quality image communications because of limited bandwidth. Thus, more research is required to overcome the limited bandwidth of current communications systems and achieve high-quality image reconstruction in real applications. From the point of view of image processing, core technologies for high-quality image reconstruction are face hallucination and compression artifact reduction. The main interests of consumers are facial regions and several compression artifacts inevitably occur by compression; these two technologies are closely related to inverse problems in image processing. We review recent studies on face hallucination and compression artifact reduction, and provide an outline of current research. Furthermore, we discuss practical considerations and possible solutions to implement these two technologies in real mobile applications.

Jung, Cheolkon; Jiao, Licheng; Liu, Bing; Qi, Hongtao; Sun, Tian

2012-10-01

59

Risk Analysis Related to Quality Management Principles  

NASA Astrophysics Data System (ADS)

Efficient and effective implementation of quality management principles asks for a responsible approach from top managers' perspectives. A study of the current state of affairs in Czech organizations discovers a lot of shortcomings in this field that can be changed to vary managerial risks. The article identifies and analyses some of them and gives short guidance for appropriate treatment. Text of the article reflects the authors' experience as well as knowledge obtained from the systematic analysis of industrial companies' environments.

Vykydal, David; Halfarová, Petra; Nenadál, Jaroslav; Plura, Ji?í; Hekelová, Edita

2012-12-01

60

Quality of sleep and health-related quality of life in haemodialysis patients  

Microsoft Academic Search

Background. Sleep complaints are common in haemo- dialysis patients. In the general population, insomnia impacts negatively on health-related quality of life (HRQoL). The objective of this study was to exa- mine the association between quality of sleep and HRQoL in haemodialysis patients independent of known predictors of HRQoL. Methods. Quality of sleep was measured using the Pittsburgh Sleep Quality Index

Eduard A. Iliescu; Helen Coo; Margo H. McMurray; Carol L. Meers; Margo M. Quinn; Michael A. Singer; Wilma M. Hopman

61

The Nottingham Health Profile--a measure of health-related quality of life.  

PubMed

Assessment of quality of life has attracted increasing interest in recent years. A standardized way of evaluating quality of life is by using questionnaires. One such, the Nottingham Health Profile (NHP), measures health-related quality of life within the sections of energy, sleep, emotions, pain, mobility and social isolation as well as the frequency of health-related problems pertaining to paid employment, housework, hobbies, family life, social life, sex life and holidays. The NHP is well-documented with regard to reliability and validity, and is useful in describing the impact of chronic disease. The NHP is, moreover, a useful evaluative tool in patients with more pronounced disability. PMID:2100359

Wiklund, I

1990-01-01

62

Quality analysis of the solution produced by dissection algorithms applied to the traveling salesman problem  

SciTech Connect

The aim of this paper is to analyze experimentally the quality of the solution obtained with dissection algorithms applied to the geometric Traveling Salesman Problem. Starting from Karp`s results. We apply a divide and conquer strategy, first dividing the plane into subregions where we calculate optimal subtours and then merging these subtours to obtain the final tour. The analysis is restricted to problem instances where points are uniformly distributed in the unit square. For relatively small sets of cities we analyze the quality of the solution by calculating the length of the optimal tour and by comparing it with our approximate solution. When the problem instance is too large we perform an asymptotical analysis estimating the length of the optimal tour. We apply the same dissection strategy also to classical heuristics by calculating approximate subtours and by comparing the results with the average quality of the heuristic. Our main result is the estimate of the rate of convergence of the approximate solution to the optimal solution as a function of the number of dissection steps, of the criterion used for the plane division and of the quality of the subtours. We have implemented our programs on MUSIC (MUlti Signal processor system with Intelligent Communication), a Single-Program-Multiple-Data parallel computer with distributed memory developed at the ETH Zurich.

Cesari, G.

1994-12-31

63

Content Quality Assessment Related Frameworks for Social Media  

Microsoft Academic Search

The assessment of content quality (CQ) in social media adds a layer of complexity over traditional information quality assessment\\u000a frameworks. Challenges arise in accurately evaluating the quality of content that has been created by users from different\\u000a backgrounds, for different domains and consumed by users with different requirements. This paper presents a comprehensive\\u000a review of 19 existing CQ assessment related

Kevin Chai; Vidyasagar Potdar; Tharam S. Dillon

2009-01-01

64

A Gallery of Visualization DEMOS for Related Rate Problems  

NSDL National Science Digital Library

This is a gallery of demos for visualizing common related rate situations. These animations can be used by instructors in a classroom setting or by students to aid in acquiring a visualization background relating to the steps for solving related problems. Two file formats, gif and mov are available.

Roberts, Lila F.

2003-01-02

65

Age-related differences in arithmetic problem-verification strategies.  

PubMed

To test age-related differences in split and problem-difficulty effects, adults between the ages of 20 and 80 years (N = 138) performed a simple and a complex inequality verification task (e.g., 6 + 3 < 11, 271 + 182 < 458; true or false?). Split effects in verification tasks (i.e., better performance for large-split than for small-split problems) reflect strategy selection between nonexhaustive verification (e.g., evaluation of plausibility; estimation) and exhaustive verification (e.g., retrieval; calculation). Problem-difficulty effects (i.e., better performance for easy than hard problems) reflect calculation processing. Results showed decreased split effects across age groups, particularly in the complex task. Moreover, problem-difficulty effects did not vary across age groups. Age-related changes were mostly mediated by age-related declines in processing speed. PMID:15118017

Duverne, Sandrine; Lemaire, Patrick

2004-05-01

66

Approach for measuring health-related quality management  

Microsoft Academic Search

Purpose – The purpose of this paper is to develop an approach to measuring health-related quality management based on earlier research on the connection between quality management and employee health. Design\\/methodology\\/approach – A questionnaire was developed and a research study was carried out at a manufacturing company. The constructs were tested for internal reliability using Cronbach's alpha tests. The dimensions’

Yvonne Lagrosen; Ingela Bäckström; Håkan Wiklund

2012-01-01

67

Development of analytical relation between maintenance, quality and productivity  

Microsoft Academic Search

Purpose – Factory management needs to find the technically feasible point up to which maintenance and quality activity levels of a factory should be selected to achieve highest productivity with a view to fulfil company objectives for higher profitability. This research paper aims to report the development of an analytical relation between maintenance, quality and productivity. Design\\/methodology\\/approach – An analytical

M. R. Rotab Khan; Ibrahim A. Darrab

2010-01-01

68

WATER QUALITY EFFECTS RELATED TO BLENDING WATERS IN DISTRIBUTION SYSTEMS  

EPA Science Inventory

This study was conducted to evaluate the effects of blending two or more waters of different quality and to relate their composition to the corrosive effects and calcium carbonate deposition tendency of the water on distribution systems. The EPA mobile water quality monitoring la...

69

AIR QUALITY CRITERIA FOR OZONE AND RELATED PHOTOCHEMICAL OXIDANTS  

EPA Science Inventory

The Clean Air Act requires periodic (5-year) update revision of criteria and National Ambient Air Quality Standards (NAAQS) for Ozone. The previous revision of the criteria contained in the Air Quality Criteria Document (AQCD) for Ozone and Related Photochemical Oxidants was co...

70

Variables Related to Sleep Problems in Children with Autism  

ERIC Educational Resources Information Center

Our study of 477 children with autism (1-15 years, IQs 9-146) showed that parent reported sleep problems are found in most children with autism and are not significantly related to age, IQ, gender, race, parent occupation, neuropsychological functioning, and learning ability. However, sleep problems increased with severity of autistic symptoms and…

Mayes, Susan Dickerson; Calhoun, Susan L.

2009-01-01

71

Inductive Influence of Related Quantitative and Conceptual Problems.  

ERIC Educational Resources Information Center

This paper addresses two questions: "Does conceptual understanding help students solve related quantitative problems?" and "Does working through a quantitative problem help students understand the concepts involved?" A class of approximately 100 students was split into two equally skillful groups, A and B. Group A was administered a tutorial…

Dukes, Phillip; Pritchard, David E.; Morote, Elsa-Sofia

72

Health Related Quality of Life and Influencing Factors among Welders  

PubMed Central

Background Occupational exposure to welding fumes is a serious occupational health problem all over the world. Welders are exposed to many occupational hazards; these hazards might cause some occupational diseases. The aim of the study was to assess the health related quality of life (HRQL) of electric welders in Shanghai China and explore influencing factors to HRQL of welders. Methods 301 male welders (without pneumoconiosis) and 305 non-dust male workers in Shanghai were enrolled in this study. Short Form-36 (SF-36) health survey questionnaires were applied in this cross-sectional study. Socio-demographic, working and health factors were also collected. Multiple stepwise regress analysis was used to identify significant factors related to the eight dimension scores. Results Six dimensions including role-physical (RP), bodily pain (BP), general health (GH), validity (VT), social function (SF), and mental health (MH) were significantly worse in welders compared to non-dust workers. Multiple stepwise regress analysis results show that native place, monthly income, quantity of children, drinking, sleep time, welding type, use of personal protective equipment (PPE), great events in life, and some symptoms including dizziness, discomfort of cervical vertebra, low back pain, cough and insomnia may be influencing factors for HRQL of welders. Among these factors, only sleep time and the use of PPE were salutary. Conclusions Some dimensions of HRQL of these welders have been affected. Enterprises which employ welders should take measures to protect the health of these people and improve their HRQL. PMID:25048102

Qin, Jingxiang; Liu, Wuzhong; Zhu, Jun; Weng, Wei; Xu, Jiaming; Ai, Zisheng

2014-01-01

73

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

ERIC Educational Resources Information Center

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

Wittek, Line; Kvernbekk, Tone

2011-01-01

74

Relational quality and media use in interpersonal relationships  

E-print Network

. Relationships with acquaintances had the lowest relational quality and romantic relationships, while closer, were less satisfying than either family or friendship relationships. Same-sex relationships were perceived as more satisfying than cross-sex...

Baym, Nancy K.; Zhang, Yan Bing; Kunkel, Adrianne; Lin, Mei-Chen; Ledbetter, Andrew

2007-10-01

75

INVENTORY OF CURRENT INDOOR AIR QUALITY-RELATED RESEARCH  

EPA Science Inventory

The Inventory lists a total of 171 current or recently completed projects relating to indoor air quality. It covers six specific areas of research: monitoring, instrumentation, health effects, control technology, risk assessment and pollutant characterization. It is cross-referen...

76

Health-related quality of life and radiographic vertebral fracture  

Microsoft Academic Search

Background: Vertebral fractures are associated with back pain and disability; however, relatively little is known about the impact of radiographic vertebral fractures on quality of life in population samples. The aim of this study was to determine the impact of a recent radiographic vertebral fracture on health-related quality of life (HRQoL). Methods: Men and women aged 50 years and over were

W. Cockerill; M. Lunt; A. J. Silman; C. Cooper; P. Lips; A. K. Bhalla; J. B. Cannata; R. Eastell; D. Felsenberg; C. Gennari; O. Johnell; J. A. Kanis; C. Kiss; P. Masaryk; M. Naves; G. Poor; H. Raspe; D. M. Reid; J. Reeve; J. Stepan; C. Todd; A. D. Woolf; T. W. O’Neill

2004-01-01

77

Using creative problem solving (TRIZ) in improving the quality of hospital services.  

PubMed

TRIZ is an initiative and SERVQUAL is a structured methodology for quality improvement. Using these tools, inventive problem solving can be applied for quality improvement, and the highest quality can be reached using creative quality improvement methodology. The present study seeks to determine the priority of quality aspects of services provided for patients in the hospital as well as how TRIZ can help in improving the quality of those services. This Study is an applied research which used a dynamic qualitative descriptive survey method during year 2011. Statistical population includes every patient who visited in one of the University Hospitals from March 2011. There existed a big gap between patients' expectations from what seemingly is seen (the design of the hospital) and timely provision of services with their perceptions. Also, quality aspects of services were prioritized as follows: keeping the appearance of hospital (the design), accountability, assurance, credibility and having empathy. Thus, the only thing which mattered most for all staff and managers of studied hospital was the appearance of hospital as well as its staff look. This can grasp a high percentage of patients' satisfaction. By referring to contradiction matrix, the most important principles of TRIZ model were related to tangible factors including principles No. 13 (discarding and recovering), 25 (self-service), 35 (parameter changes), and 2 (taking out). Furthermore, in addition to these four principles, principle No. 24 (intermediary) was repeated most among the others. By utilizing TRIZ, hospital problems can be examined with a more open view, Go beyond The conceptual framework of the organization and responded more quickly to patients ' needs. PMID:25560360

LariSemnani, Behrouz; Mohebbi Far, Rafat; Shalipoor, Elham; Mohseni, Mohammad

2015-01-01

78

Generalized relative quality assessment scheme for reconstructed medical images.  

PubMed

A generalized relative quality (RQ) assessment scheme is proposed here based on the Bayesian inference theory, which is reasonable to make use of full reference (FR) algorithms when the evaluation of the quality of homogeneous medical images is required. Each FR algorithm is taken as a kernel to represent the level of quality. Although, various kernels generate different order of magnitude, a normalization process can rationalize the quality index within 0 and 1, where 1 represent the highest quality and 0 represents the lowest quality. To validate the performance of the proposed scheme, a series of reconstructed susceptibility weighted imaging images are collected, where each image has its subjective scale. Both experimental results and a ROC analysis show that the RQ obtained from the proposed scheme is consistent with subjective evaluation. PMID:25226992

Wang, Shaoze; Ding, Yong; Dai, Hang; Qian, Dahong; Yu, Xinfeng; Zhang, Minming

2014-01-01

79

Health-related quality of life between naturalism and hermeneutics  

Microsoft Academic Search

Interest in measuring Quality of life (QOL) in modern medicine has increased considerably in recent years. However, there is no generally agreed definition of QOL, but the term encompasses several constructs, including physical, functional, emotional, social and cognitive domains. A psychometric approach is typically applied, but major problems conceptual confront this tradition. It is argued that QOL research follows a

Raben Rosenberg

1995-01-01

80

Cognition and health-related quality of life in chronic well-controlled patients with partial epilepsy on carbamazepine monotherapy  

Microsoft Academic Search

As a group, patients with epilepsy have reduced neuropsychological functioning and health-related quality of life (HRQOL), but the status of these factors is uncertain in seizure-free patients with seizure onset in adulthood on monotherapy. Nevertheless, some of these patients report neuropsychological problems. We hypothesized that subtle impairments in neuropsychological functioning and HRQOL may be underdiagnosed and related to these problems.

Nadine H. J. Engelberts; Martin Klein; Ploeg van der Henk M; Jan J. Heimans; Jelle Jolles

2002-01-01

81

Preventing Alcohol-Related Problems Through Health Policy Research  

PubMed Central

Alcohol-related health policy research is responsible for guiding the implementation of laws and public health policies that have reduced alcohol-related highway injuries and deaths, as well as other alcohol-related problems over the last 40 years. This research, which tests theories about potential policy changes and responds to specific problems, has examined a vast array of prevention programs. This article briefly identifies 10 program categories and highlights four programs to illustrate the scope and complexity of the individual health policy areas within the categories. PMID:23579933

Voas, Robert B.; Fell, James C.

2010-01-01

82

Relational Benefits of Relational Aggression: Adaptive and Maladaptive Associations with Adolescent Friendship Quality  

ERIC Educational Resources Information Center

Two longitudinal studies examined associations between relational aggression and friendship quality during adolescence. In Study 1, 62 adolescents in Grades 6 (25.8%), 7 (32.3%), and 8 (41.9%) completed assessments of friendship affiliations, relational and overt aggression, and friendship quality at 2 time points, 1 year apart. Results using…

Banny, Adrienne M.; Heilbron, Nicole; Ames, Angharad; Prinstein, Mitchell J.

2011-01-01

83

Alcohol-Related Problems Seen at the Student Health Services  

Microsoft Academic Search

The number and types of alcohol-related problems seen by medical, nursing, and mental health professionals at the University of Massachusetts Health Services has been assessed since 1975 as part of a Demonstration Alcohol Education Project.Medical outpatient clinic alcohol-related contacts using encounter forms completed on every outpatient visit during 1975 and 1976 revealed that 0.08% of approximately 92,500 visits annually were

David P. Kraft

1979-01-01

84

Simple Solutions to Complex Problems: Moral Panic and the Fluid Shift from "Equity" to "Quality" in Education  

ERIC Educational Resources Information Center

Education is increasingly conceptualised by governments and policymakers in western democracies in terms of productivity and human capital, emphasising elements of individualism and competition over concerns around democracy and equity. More and more, solutions to intransigent educational problems related to equity are seen in terms of quality and…

Mockler, Nicole

2014-01-01

85

College Students' Alcohol-Related Problems: An Autophotographic Approach  

ERIC Educational Resources Information Center

This study related standard self-report measures to an innovative approach (the autophotographic essay) as a way to provide insight into patterns of alcohol consumption and associated problem behaviors. College students (N = 135) completed self-report measures of alcohol consumption and created autophotographic essays of identity coded for alcohol…

Casey, Patrick F.; Dollinger, Stephen J.

2007-01-01

86

Contributions to Statistical Problems Related to Microarray Data  

ERIC Educational Resources Information Center

Microarray is a high throughput technology to measure the gene expression. Analysis of microarray data brings many interesting and challenging problems. This thesis consists three studies related to microarray data. First, we propose a Bayesian model for microarray data and use Bayes Factors to identify differentially expressed genes. Second, we…

Hong, Feng

2009-01-01

87

Quantitative Thermo-acoustics and related problems Guillaume Bal  

E-print Network

Quantitative Thermo-acoustics and related problems Guillaume Bal Department of Applied Physics of Mathematics, University of Washington, Seattle, WA 98195 E-mail: tzhou@math.washington.edu Abstract. Thermo-acoustic in tissues with the good resolution properties of ultrasounds. Thermo-acoustic imaging may be decomposed

Bal, Guillaume

88

Quantitative Thermo-acoustics and related problems Guillaume Bal  

E-print Network

Quantitative Thermo-acoustics and related problems Guillaume Bal Department of Applied Physics of Mathematics, University of Washington, Seattle, WA 98195 E-mail: tzhou@math.washington.edu Abstract. Thermo-acoustic in tissues with the good resolution properties of ultrasound. Thermo-acoustic imaging may be decomposed

Ren, Kui

89

The Relation of Parenting Transitions to Boys' Adjustment Problems.  

ERIC Educational Resources Information Center

The hypothesis that children are placed at increased risk for adjustment problems when parents divorce and remarry was tested with a sample of 206 boys in the fourth grade. It was also hypothesized that the relation of parenting transitions and boys' adjustment would be mediated by family management practices. Subjects attended schools in…

Capaldi, D. M.

90

METHODS OF PLANKTON INVESTIGATION IN THEIR RELATION TO PRACTICAL PROBLEMS.  

E-print Network

, it is customary to neglect the fixed plants along the shore and the animals that they harbor. That the plankton169 METHODS OF PLANKTON INVESTIGATION IN THEIR RELATION TO PRACTICAL PROBLEMS. By JACOB REIGHARD and animals which inhabit a body of water are interdependent. In the final analysis all the fishes

91

Risk minimization in water quality control problems of a river system  

Microsoft Academic Search

Methodologies are presented for minimization of risk in a river water quality management problem. A risk minimization model is developed to minimize the risk of low water quality along a river in the face of conflict among various stake holders. The model consists of three parts: a water quality simulation model, a risk evaluation model with uncertainty analysis and an

Subimal Ghosh; P. P. Mujumdar

2006-01-01

92

Addressing the Wicked Problem of Quality in Higher Education: Theoretical Approaches and Implications  

ERIC Educational Resources Information Center

This article explores the wicked problem of quality in higher education, arguing for a more robust theorising of the subject at national, institutional and local department level. The focus of the discussion rests on principles for theorising in more rigorous ways about the multidimensional issue of quality. Quality in higher education is proposed…

Krause, Kerri-Lee

2012-01-01

93

The Health-Related Quality of Life of Custodial Grandparents  

ERIC Educational Resources Information Center

Health-related quality of life (HRQOL) was explored in a sample of 119 custodial grandparents. A latent profile analysis identified three groups of grandparents along a continuum of good to poor HRQOL, with most custodial grandparents reporting Short Form-12 Health Survey (version 2) scores significantly below U.S. population means. Grandparent…

Neely-Barnes, Susan L.; Graff, J. Carolyn; Washington, Gregory

2010-01-01

94

Health-Related Quality of Life in Cardiovascular Disease.  

ERIC Educational Resources Information Center

Reviews several current approaches to the assessment of health outcomes in cardiovascular disease, including health-related quality of life. Offers a general health policy model as a method for comparing program options in cardiovascular disease that may have very different objectives. Uses examples from hypertension screening and treatment, heart…

Kaplan, Robert M.

1988-01-01

95

Health related quality of life of Canary Island citizens  

Microsoft Academic Search

BACKGROUND: The aim of the study was to describe the health-related quality of life of Canarian population using information from the Canary Island Health Survey and three observational studies developed in the Canary Islands. METHODS: A descriptive analysis was carried out on a sample of 5.549 Canarian citizens using information from 2004 Canary Island Health Survey and three observational studies

Juan Oliva-Moreno; Julio Lopez-Bastida; Melany Worbes-Cerezo; Pedro Serrano-Aguilar

2010-01-01

96

Climate change induced risk in water quality control problems  

NASA Astrophysics Data System (ADS)

SummaryA modeling framework is presented in this paper, integrating hydrologic scenarios projected from a General Circulation Model (GCM) with a water quality simulation model to quantify the future expected risk. Statistical downscaling with a Canonical Correlation Analysis (CCA) is carried out to develop the future scenarios of hydro-climate variables starting with simulations provided by a GCM. A Multiple Logistic Regression (MLR) is used to quantify the risk of Low Water Quality (LWQ) corresponding to a threshold quality level, by considering the streamflow and water temperature as explanatory variables. An Imprecise Fuzzy Waste Load Allocation Model (IFWLAM) presented in an earlier study is then used to develop adaptive policies to address the projected water quality risks. Application of the proposed methodology is demonstrated with the case study of Tunga-Bhadra river in India. The results showed that the projected changes in the hydro-climate variables tend to diminish DO levels, thus increasing the future risk levels of LWQ.

Rehana, S.; Mujumdar, P. P.

2012-06-01

97

a Simplified Two-Body Problem in General Relativity  

NASA Astrophysics Data System (ADS)

General relativity, Einstein's theory of gravity, predicts a universe full of black holes and gravitational waves. The prospects of detecting gravitational waves from inspirals of compact astrophysical objects into supermassive black holes have made it highly important to analyze in detail the gravitational two-body problem. While the two-body problem in Newtonian gravity (the weak-field limit) has a well-defined compact analytic solution, the corresponding problem in general relativity (the strong-field regime) is very complex and cannot be solved analytically. In this paper, we propose to model the two-body problem in general relativity using the analytically solvable model of a ring of particles in orbit around a central black hole. We use our model to calculate the innermost stable circular orbit (ISCO) frequency which characterizes the two-body dynamics. Remarkably, our expression for the characteristic ISCO frequency through linear order in the ring's mass predicts with astonishing accuracy the actual value of this fundamental parameter.

Hod, Shahar

2013-11-01

98

Exposure to Alcohol Advertisements and Teenage Alcohol-Related Problems  

PubMed Central

OBJECTIVE: This study used prospective data to test the hypothesis that exposure to alcohol advertising contributes to an increase in underage drinking and that an increase in underage drinking then leads to problems associated with drinking alcohol. METHODS: A total of 3890 students were surveyed once per year across 4 years from the 7th through the 10th grades. Assessments included several measures of exposure to alcohol advertising, alcohol use, problems related to alcohol use, and a range of covariates, such as age, drinking by peers, drinking by close adults, playing sports, general TV watching, acculturation, parents’ jobs, and parents’ education. RESULTS: Structural equation modeling of alcohol consumption showed that exposure to alcohol ads and/or liking of those ads in seventh grade were predictive of the latent growth factors for alcohol use (past 30 days and past 6 months) after controlling for covariates. In addition, there was a significant total effect for boys and a significant mediated effect for girls of exposure to alcohol ads and liking of those ads in 7th grade through latent growth factors for alcohol use on alcohol-related problems in 10th grade. CONCLUSIONS: Younger adolescents appear to be susceptible to the persuasive messages contained in alcohol commercials broadcast on TV, which sometimes results in a positive affective reaction to the ads. Alcohol ad exposure and the affective reaction to those ads influence some youth to drink more and experience drinking-related problems later in adolescence. PMID:23359585

Dent, Clyde W.; Stacy, Alan W.

2013-01-01

99

Asymmetry in Keratoconus and Vision-Related Quality of Life  

PubMed Central

Purpose To examine the relation of increased ocular asymmetry over time on vision-related quality of life in keratoconus. Methods Subjects were in the Collaborative Longitudinal Evaluation of Keratoconus (CLEK) Study and had complete data on a least one scale of the NEI VFQ and examination data at baseline and at least one follow-up visit. Three measures of disease asymmetry (visual acuity, corneal curvature, and refractive error) and better eye status were assessed. Multilevel models were fit to the data. Results Analyses were completed using 961 subjects. Six scales on the NEI VFQ had adequate variability to model (distance activity, driving, mental health, near activity, ocular pain, and role difficulties). Refractive error changes were not associated with statistically significant quality of life differences. Except for ocular pain, statistically significant, but not clinically meaningful, differences were found for visual acuity changes and corneal curvature changes. For a 0.1-unit logMAR visual acuity change, the quality of life scales decreased between 0.20 and 0.99 units. For a 1.00-D steepening of corneal curvature these decreases were on the order of 0.20 to 0.59 units. Changes related to asymmetry were small as well: decreases on the order of 0.20 to 0.38 units. Conclusions Increasing ocular asymmetry and decreases in visual acuity and corneal steepening in the better eye were associated with decreasing vision-related quality of life, though the magnitudes of the changes were not clinically meaningful. Of these two disease status indicators, the vision in the better eye had greater effect on vision-related quality of life. PMID:22825402

Jones-Jordan, Lisa A.; Walline, Jeffrey J.; Sinnott, Loraine T.; Kymes, Steven M.; Zadnik, Karla

2012-01-01

100

Health-related quality of life and cancer clinical trials  

PubMed Central

The measurement of patient-reported outcomes, including health-related quality of life, is a new initiative which has emerged and grown over the past four decades. Following the development of reliable and valid self-report questionnaires, health-related quality of life has been assessed in tens of thousands of patients and a wide variety of cancers. This review is based on a selection of data published in the last decade and is intended primarily for healthcare professionals. The assessments in clinical trials have been particularly useful for elucidating the effects of various cancers and their treatments on patients’ lives and have provided additional information that enhances the usual clinical endpoints used for determining the benefits and toxicity of treatment. With growing experience the quality of the health-related quality of studies has improved and, in general, recent studies are more likely to be methodologically robust than those that were performed in earlier decades. Health-related quality of life has become a more accurate predictor of survival than some other clinical parameters, such as performance status. The overall outlook for the routine assessment of patient-reported outcomes in clinical trials is assured and, eventually, it is likely to become a standard part of clinical practice. However, there is still a need for a clear method for determining the clinical meaningfulness of changes in scores. The answer will probably come from the greater use of patient-reported outcomes and the consequent growth of experience that is necessary to make such judgements. PMID:21789156

Osoba, David

2011-01-01

101

Undiagnosed malnutrition and nutrition-related problems in geriatric patients  

Microsoft Academic Search

Background & aims  Malnutrition is common in geriatric patients and associated with poor outcome. If recognised, effective treatment is possible.\\u000a In recent years, low nutritional awareness among health care professionals (HCPs) has been deplored with respect to the general\\u000a hospital population. The aim of the present cross-sectional study was to assess to which extent malnutrition and nutrition-related\\u000a problems are documented by

Dorothee Volkert; C. Saeglitz; H. Gueldenzoph; C. C. Sieber; P. Stehle

102

Undiagnosed malnutrition and nutrition-related problems in geriatric patients  

Microsoft Academic Search

Background & aims  Malnutrition is common in geriatric patients and associated with poor outcome. If recognised, effective treatment is possible.\\u000a In recent years, low nutritional awareness among health care professionals (HCPs) has been deplored with respect to the general\\u000a hospital population. The aim of the present cross-sectional study was to assess to which extent malnutrition and nutrition-related\\u000a problems are documented by

Dorothee Volkert; C. Saeglitz; H. Gueldenzoph; C. C. Sieber; P. Stehle

2010-01-01

103

Sleep-related problems in pediatric obsessive-compulsive disorder  

Microsoft Academic Search

Although attention has been given to presence of sleep related problems (SRPs) in children with psychiatric conditions, little has been reported on SRPs in youth with obsessive-compulsive disorder (OCD). Sixty-six children and adolescents with OCD were administered the Children's Yale Brown Obsessive-Compulsive Scale and completed the Children's Depression Inventory and Multidimensional Anxiety Scale. Their parents completed the Child Behavior Checklist

Eric A. Storch; Tanya K. Murphy; Caleb W. Lack; Gary R. Geffken; Marni L. Jacob; Wayne K. Goodman

2008-01-01

104

The fertility problem inventory: measuring perceived infertility-related stress  

Microsoft Academic Search

Objective: To develop a reliable, valid instrument to evaluate perceived infertility-related stress.Design: Prospective study.Setting: University-affiliated teaching hospital.Patient(s): Consecutively referred patients (1,153 women and 1,149 men) seen for infertility treatment.Intervention(s): None.Main Outcome Measure(s): Participants’ infertility-related stress was assessed by written questionnaire using the Fertility Problem Inventory. Current levels of anxiety, depression, and marital satisfaction also were determined.Result(s): Women described greater global

Christopher R Newton; Wendy Sherrard; Irene Glavac

1999-01-01

105

Sleep Characteristics, Sleep Problems, and Associations to Quality of Life among Psychotherapists.  

PubMed

Sleep problems, especially insomnia, are a common complaint among adults. International studies have shown prevalence rates between 4.7 and 36.2% for sleep difficulties in general, whereas 13.1-28.1% report insomnia symptoms. Sleep problems are associated with lower social and academic performance and can have a severe impact on psychological and physical health. Psychotherapists are suppliers within the public health system. The goal of this study was to outline sleep characteristics, prevalence of sleep problems, insomnia, and associations of quality of life among psychotherapists. A total of 774 psychotherapists (74.7% women; mean age 46 years) participated in the study. Sleep characteristics, sleep problems, well-being, life satisfaction and workload, as well as specific job demands, were assessed via a questionnaire. Analyses revealed that more than 4.2% of the surveyed psychotherapists have difficulties falling asleep, 12.7% often wake up in the night, and 26.6% feel tired, and 3.4% think that their interrupted sleep affects work performance. About 44.1% of them suffer from symptoms of insomnia. Path models showed that insomnia is significantly related to well-being and life satisfaction. PMID:23471477

Schlarb, Angelika A; Reis, Dorota; Schröder, Annette

2012-01-01

106

Relations between sleep, fatigue and health-related quality of life in individuals with insomnia  

PubMed Central

Objective This study explored the relations between sleep, fatigue and health-related quality of life in a sample of individuals with chronic insomnia. Methods A total of 160 adults meeting diagnostic criteria for chronic insomnia underwent three nights of polysomnography (PSG) and completed sleep diaries and questionnaires assessing daytime functioning including fatigue and health-related quality of life. Results A cluster analysis was conducted based on PSG-defined sleep disturbances and fatigue severity. A four-cluster solution (R2 = 0.68) was found, classifying individuals as having either (a) both severe sleep disturbance and severe fatigue (n = 15); (b) severe sleep disturbance but milder fatigue (n = 15); (c) milder sleep disturbance but severe fatigue (n = 68) or (d) both milder sleep disturbance and milder fatigue (n = 61). Health-related quality of life was lower in both clusters with severe fatigue compared to those with milder fatigue, and was further decreased when severe sleep disturbances were present. Relations between several indicators of fatigue and health-related quality of life were then examined using factor analysis in order to identify different domains of impairment. A three-factor structure was selected, suggesting that daytime symptoms can be classified as relating to fatigue, physical health, or mental health. These different subtypes of daytime impairment were predicted by distinct sets of variables. Conclusion More severe fatigue is not necessarily related to poorer PSG-defined sleep but appears associated with greater impairment in health-related quality of life. Fatigue and health-related quality of life appear to be distinct but interrelated constructs. PMID:20955867

Fortier-Brochu, Émilie; Beaulieu-Bonneau, Simon; Ivers, Hans; Morin, Charles M.

2010-01-01

107

Health-related quality of life and symptom profiles of female survivors of sexual abuse  

Microsoft Academic Search

OBJECTIVES: To determine the association between severity of sexual abuse and psychiatric or medical problems in a sample of female patients from primary care medical settings and to assess the relationship between sexual abuse severity and health-related quality of life before and after controlling for the effects of a current psychiatric or medical diagnosis.\\u000aDESIGN: Structured interview and self-report questionnaire.

L. Miriam Dickinson; Frank Verloin deGruy III; W. Perry Dickinson; Lucy M. Candib

1999-01-01

108

Measuring health-related quality of life in tuberculosis: a systematic review  

PubMed Central

Introduction Tuberculosis remains a major public health problem worldwide. In recent years, increasing efforts have been dedicated to assessing the health-related quality of life experienced by people infected with tuberculosis. The objectives of this study were to better understand the impact of tuberculosis and its treatment on people's quality of life, and to review quality of life instruments used in current tuberculosis research. Methods A systematic literature search from 1981 to 2008 was performed through a number of electronic databases as well as a manual search. Eligible studies assessed multi-dimensional quality of life in people with tuberculosis disease or infection using standardized instruments. Results of the included studies were summarized qualitatively. Results Twelve original studies met our criteria for inclusion. A wide range of quality of life instruments were involved, and the Short-Form 36 was most commonly used. A validated tuberculosis-specific quality of life instrument was not located. The findings showed that tuberculosis had a substantial and encompassing impact on patients' quality of life. Overall, the anti-tuberculosis treatment had a positive effect of improving patients' quality of life; their physical health tended to recover more quickly than the mental well-being. However, after the patients successfully completed treatment and were microbiologically 'cured', their quality of life remained significantly worse than the general population. Conclusion Tuberculosis has substantially adverse impacts on patients' quality of life, which persist after microbiological 'cure'. A variety of instruments were used to assess quality of life in tuberculosis and there has been no well-established tuberculosis-specific instrument, making it difficult to fully understand the impact of the illness. PMID:19224645

Guo, Na; Marra, Fawziah; Marra, Carlo A

2009-01-01

109

Isaac Newton Institute for Mathematical Science Free Boundary Problems and Related Topics  

E-print Network

Isaac Newton Institute for Mathematical Science Free Boundary Problems and Related Topics 6 January segregation Pierluigi Colli Free Boundary Problems and Related Topics Isaac Newton Institute for Mathematical

110

Cholestatic liver diseases and health-related quality of life  

Microsoft Academic Search

OBJECTIVE:Symptoms associated with primary biliary cirrhosis (PBC) and primary sclerosing cholangitis (PSC) negatively affect health-related quality of life (HRQL). The aim of this study was to measure HRQL in patients with chronic cholestatic liver diseases and to determine factors associated with more severe impairment.METHODS:We conducted a cross-sectional study in which we documented patients’ demographic and clinical characteristics, and measured their

Zobair M. Younossi; Michelle L. Kiwi; Navdeep Boparai; Lori Lyn Price; Gordon Guyatt

2000-01-01

111

Tethered body problems and relative motion orbit determination  

NASA Technical Reports Server (NTRS)

Selected problems dealing with orbiting tethered body systems have been studied. In addition, a relative motion orbit determination program was developed. Results from these tasks are described and discussed. The expected tethered body motions were examined, analytically, to ascertain what influence would be played by the physical parameters of the tether, the gravity gradient and orbit eccentricity. After separating the motion modes these influences were determined; and, subsequently, the effects of oscillations and/or rotations, on tether force, were described. A study was undertaken, by examining tether motions, to see what type of control actions would be needed to accurately place a mass particle at a prescribed position relative to a main vehicle. Other applications for tethers were studied. Principally these were concerned with the producing of low-level gee forces by means of stabilized tether configurations; and, the initiation of free transfer trajectories from tether supported vehicle relative positions.

Eades, J. B., Jr.; Wolf, H.

1972-01-01

112

The quality of water: problems, identification, and improvement  

Microsoft Academic Search

Within the next two or three decades, water problems in the United States, particularly in the western region, may well constitute a greater crisis than does energy today.' The major difference between the water and energy crises is that there are no known physical substitutes for water in satisfying direct demands by people, but there are many known substitutes for

John F. Timmons

1979-01-01

113

Negative affectivity and educational attainment as predictors of newlyweds' problem solving communication and marital quality.  

PubMed

This investigation examines the role of negative affectivity and educational attainment in newlywed couples' mutual problem solving and marital quality (i.e., personal commitment and divorce proneness). The vulnerability-stress-adaptation (VSA) model of marital development was used as a framework to explain the relationships between enduring vulnerabilities, adaptive processes, and marital quality. Dyadic analyses and tests of indirect effects were performed on data from 186 couples who had been married on average for 1.5 years. Spouses' negative affectivity and educational attainment were significantly associated with their own and their partner's mutual problem solving, personal commitment, and propensity to divorce. In addition, there was evidence supporting the assumption that the relationships between enduring vulnerabilities and marital quality can be explained, in part, by mutual problem solving for husbands. This study highlights the important role that enduring vulnerabilities have on mutual problem solving communication and marital quality. PMID:23472443

Woszidlo, Alesia; Segrin, Chris

2013-01-01

114

Relationships between Undergraduates' Argumentation Skills, Conceptual Quality of Problem Solutions, and Problem Solving Strategies in Introductory Physics  

ERIC Educational Resources Information Center

This study explored the effects of alternative forms of argumentation on undergraduates' physics solutions in introductory calculus-based physics. A two-phase concurrent mixed methods design was employed to investigate relationships between undergraduates' written argumentation abilities, conceptual quality of problem solutions, as well…

Rebello, Carina M.

2012-01-01

115

Less Drinking, Yet More Problems: Understanding African American Drinking and Related Problems  

PubMed Central

Researchers have found that, compared to European Americans, African Americans report later initiation of drinking, lower rates of use, and lower levels of use across almost all age groups. Nevertheless, African Americans also have higher levels of alcohol problems than European Americans. After reviewing current data regarding these trends, we provide a theory to understand this apparent paradox as well as to understand variability in risk among African Americans. Certain factors appear to operate as both protective factors against heavy use and risk factors for negative consequences from use. For example, African American culture is characterized by norms against heavy alcohol use or intoxication, which protects against heavy use but which also provides within group social disapproval when use does occur. African Americans are more likely to encounter legal problems from drinking than European Americans, even at the same levels of consumption, perhaps thus resulting in reduced consumption but more problems from consumption. There appears to be one particular group of African Americans, low-income African American men, who are at the highest risk for alcoholism and related problems. We theorize that this effect is due to the complex interaction of residential discrimination, racism, age of drinking, and lack of available standard life reinforcers (e.g., stable employment and financial stability). Further empirical research will be needed to test our theories and otherwise move this important field forward. A focus on within group variation in drinking patterns and problems is necessary. We suggest several new avenues of inquiry. PMID:23477449

Zapolski, Tamika C. B.; Pedersen, Sarah L.; McCarthy, Denis M.; Smith, Gregory T.

2013-01-01

116

Snake river water quality: A discussion of current practices and problems. Technical report  

Microsoft Academic Search

Water-quality impacts of a single hydroelectric impoundment are relatively simple to predict however, consideration of cumulative impacts to fisheries, wildlife, and water quality resulting from combinations of additional impoundments must also be considered. By constructing a water quality model, the Snake River Risk Assessment team intends to provide the means to fully assess the environmental risks associated with potential individual

1989-01-01

117

Internalizing problems among cyberbullying victims and moderator effects of friendship quality  

Microsoft Academic Search

Purpose – The purpose of this paper is to examine the relationship between cyberbullying victimization and internalizing problems among the youth. Moderator effects of a friendship quality were also investigated to examine if higher friendship quality moderated the negative effects of cyberbullying on psychological states of students. Design\\/methodology\\/approach – A total of 463 middle and high school students in Texas

Ikuko Aoyama; Terrill F. Saxon; Danielle D. Fearon

2011-01-01

118

Internalizing Problems among Cyberbullying Victims and Moderator Effects of Friendship Quality  

ERIC Educational Resources Information Center

Purpose: The purpose of this paper is to examine the relationship between cyberbullying victimization and internalizing problems among the youth. Moderator effects of a friendship quality were also investigated to examine if higher friendship quality moderated the negative effects of cyberbullying on psychological states of students.…

Aoyama, Ikuko; Saxon, Terrill F.; Fearon, Danielle D.

2011-01-01

119

Binge drinking among Brazilians: Higher drinking frequency increases related problems.  

PubMed

Abstract Aims: To correlate binge drinking (BD) with alcohol-related problems (ARP) in the Brazilian population. Methods: A representative cross-sectional survey was conducted in 143 Brazilian cities. Associations between the frequencies of BD and ARP were gathered using an ordered logit regression model. Results: Higher BD frequencies significantly increased the chance of injury in accidents, job loss, and involvement in intense arguments and assaults over the year. High frequency in BD increases the odds of all ARP. Conclusion: There is a dose-response association between the frequency BD and ARP and is therefore a possible target for public prevention policies. PMID:24829095

de Castro, Daniel Sócrates; Sanchez, Zila M; Zaleski, Marcos; Palhares Alves, Hamer Nastasy; Pinsky, Ilana; Caetano, Raul; Laranjeira, Ronaldo Ramos

2014-05-14

120

Stochastic partial differential equations in turbulence related problems  

NASA Technical Reports Server (NTRS)

The theory of stochastic partial differential equations (PDEs) and problems relating to turbulence are discussed by employing the theories of Brownian motion and diffusion in infinite dimensions, functional differential equations, and functional integration. Relevant results in probablistic analysis, especially Gaussian measures in function spaces and the theory of stochastic PDEs of Ito type, are taken into account. Linear stochastic PDEs are analyzed through linearized Navier-Stokes equations with a random forcing. Stochastic equations for waves in random media as well as model equations in turbulent transport theory are considered. Markovian models in fully developed turbulence are discussed from a stochastic equation viewpoint.

Chow, P.-L.

1978-01-01

121

Oral Health Related Quality of Life in Diabetic Patients  

PubMed Central

Background and aims. Diabetic patients display an increased risk of oral disorders, and oral health related quality of life (OHRQL) might affect their management and treatment modalities. The aim of the present study was to determine OHRQL and associated parameters in patients with diabetes. Materials and methods. In this study two hundred patients were recruited from the diabetes clinic in Mustafa Khomeini Hospital in Tehran, Iran. OHRQL was assessed using Oral Health Impact Profile Questionnaire (OHIP-20). Also, another questionnaire was designed which contained questions regarding participants’ knowledge about oral complications of diabetes and oral health behavior. OHRQL was categorized as low and good. Data were analyzed using logistic regression at P = 0.05. Results. Of the diabetic patients assessed, 77.5% were in good and 22.5% were in low categories of OHRQL. This quality was significantly associated with age (OR = 4.03, 95% CI = 1.63-11.29), knowledge about diabetes oral complications (OR = 18.17 95% CI = 4.42-158.6), educational level (OR = 26.31 95% CI = 4.2-1080.3), referred for dental visit by physician (OR = 3.16 95% CI = 1.48-6.69), frequency of brushing (OR = 10.29 95% CI = 3.96-31.2) and length of time diagnosed with diabetes (OR = 6.21 95% CI = 2.86-13.63). Conclusion. Oral health related quality of life was not negatively affected by diabetes mellitus in the assessed sample. PMID:25587385

Sadeghi, Rokhsareh; Taleghani, Ferial; Farhadi, Sareh

2014-01-01

122

The Relationships between Problem Characteristics, Achievement-Related Behaviors, and Academic Achievement in Problem-Based Learning  

ERIC Educational Resources Information Center

This study investigated the influence of five problem characteristics on students' achievement-related classroom behaviors and academic achievement. Data from 5,949 polytechnic students in PBL curricula across 170 courses were analyzed by means of path analysis. The five problem characteristics were: (1) problem clarity, (2) problem familiarity,…

Sockalingam, Nachamma; Rotgans, Jerome I.; Schmidt, Henk G.

2011-01-01

123

Quality of Rapport as a Setting Event for Problem Behavior: Assessment and Intervention  

ERIC Educational Resources Information Center

Relationship quality (rapport) between people with developmental disabilities and their caregivers has long been suggested as an important variable influencing the likelihood of problem behavior. However, to date, the association between rapport and problem behavior has not been systematically investigated. The authors evaluated a multimethod…

McLaughlin, Darlene Magito; Carr, Edward G.

2005-01-01

124

Causes of Indoor Air Quality Problems in Schools: Summary of Scientific Research. Revised Edition.  

ERIC Educational Resources Information Center

Understanding the primary causes of indoor air quality (IAQ) problems and how controllable factors--proper heating, ventilation and air-conditioning (HVAC) system design, allocation of adequate outdoor air, proper filtration, effective humidity control, and routine maintenance--can avert problems may help all building owners, operators, and…

Bayer, Charlene W.; Crow, Sidney A.; Fischer, John

125

Math Problems for Water Quality Control Personnel, Student Workbook. Second Edition.  

ERIC Educational Resources Information Center

This document is the student workbook for a course in mathematics for water quality control personnel. This version contains complete problems, answers and references. Problems are arranged alphabetically by treatment process. Charts, graphs, and drawings represent data forms an operator might see in a plant containing information necessary for…

Delvecchio, Fred; Brutsch, Gloria

126

Health-Related Quality of Life and Family Impact in Children with Attention-Deficit/Hyperactivity Disorder and Co-Morbid Psychiatric Conditions  

E-print Network

?? ?????? ?? ?? ??????? ? ? ??? ?? ? ?? ???? ????? ? ?? ??? ?? ??????? ?? ??? ?? ?? ?? ???? ? ???? ?? ??? ????? ?? ? ? ? ???? ????? ????? ???? ?? ?????? ? ???? ??????????? ????? ? ? ? ? ??? ???? ??????? ?? ???????? ?? ??? ? ?????? ??? ??? ? ? ?? ??? ???? ????? ? ? ???? ?? ??????? ??????????? ?? ?? ?????? ? ?? ?? ??? ? ????? ?? ????????? ??? ?? ? ?????????? ? ??????? ?? ?????? ?? ? ? ??? ???? ?????? ???????? ????? ?????????????? ?? ?????????? ? ?? ?? ?? ????? ??????? ???? ??? ?????? ????? ? ?????? ?? ???????? ??? ??? ? ? ????? ???????? ???? ???? ??? ? ? ? ? ??????? ?? ? ??????? ?????? ????????????? ???? ?? ??? ?? ? ??? ? ?? ? ??? ?? ?? ? ?????????????? ? ???? ? ?? ????????? ? ?? ?? ????? ? ??????????? ??????? ?? ? ???? ???? ??? ????? ????? ????? ? ? ?????? ?? ?? ??? ????? ? ??? ????? ??? ???????? ?? ? ???? ?????? ? ? ? ?? ? ??????? ???? ?????? ????? ?? ? ??? ?? ??? ????? ? ??? ?? ? ???? ? ??????????? ???? ???? ?? ?? ?? ? ???? ?? ? ? ?? ? ???? ????? ???? ? ? ???? ? ? ??? ? ???? ? ?? ???? ? ? ?? ? ? ??? ???? ??? ?????? ??? ???? ? ??? ?? ??????? ? ? ?? ???? ? ???????? ?? ?? ? ???????? ? ????? ????? ??????? ? ? ???? ???? ?? ???? ?? ?? ? ??? ?? ? ???? ?? ?????? ? ? ??? ???? ? ? ? ?? ?? ?????????? ? ? ? ?? ? ? ???????????? ???? ? ??????? ?? ??? ? ?????? ? ???????????? ? ? ????????????? ????????? ????? ????????? ??? ???? ????? ??? ? ????????? ?? ? ?? ? ?? ??? ????? ?? ???????? ?? ???? ? ???????? ? ? ?? ??? ?? ? ???? ? ??? ?? ?? ?? ??? ?? ?????????? ????? ?? ????? ? ???????? ? ??????????? ?? ??????? ? ?? ?? ???? ?? ??? ?? ? ???? ??????? ?? ???????? ?? ? ??? ?? ? ? ??? ??? ???????? ? ? ???? ??? ?????? ?? ? ??????? Health-Related Quality of Life... ??? ??? ???? ?????? ? ? ???????? ??????? ?? ? ??????? ? ????????????? ??????????? ? ??? ???? ?????? ?? ?????? ? ??? ?? ???? ? ??? ???????????? ???? ???????????? ???? ? ???? ??? ?? ???? ???????? ??? ? ?? ???????? ?? ??????? ?? ?? ? ?? ? ??????? ??? ?? ? ????????? ????????? ? ??? ????? ? ?????? ? ??????? ??? ?? ??? ???? ? ?? ? ??? ?????????? ? ?? ??????? ???? ????????????? ? ???????????? ?? ? ? ?? ????? ? ? ??????? ????? ??? ?? ??? ????? ? ?? ? ?? ? ??? ????? ???? ??? ?? ?????? ???????? ?? ?? ?? ? ????? ? ???? ??? ? ????????? ? ??? ?????? ???? ? ?? ?? ???? ? ?? ?? ??? ???? ? ?? ? ? ??? ?? ?? ???? ????? ??? ???? ?? ? ? ? ? ?? ???? ??? ?? ?????? ?????? ?? ? ???? ? ???? ? ? ?? ?? ?? ??? ? ????? ???? ?? ????? ?????????? ?? ????????? ? ? ?????? ?????????? ?? ??? ? ? ? ? ? ? ?????? ?? ? ? ??? ??? ?? ????? ????????? ? ? ????? ? ????? ?????? ????? ? ????????????? ? ?? ? ?? ? ??????? ??? ???????? ??? ?????? ??????? ?????? ?????? ?????? ? ??? ? ??????? ? ??????? ???? ?? ????????? ??? ?? ? ???? ??????????? ???????????? ? ???? ? ? ?????? ? ?? ????? ??? ? ? ? ?? ????? ?? ??? ????? ?? ????? ? ???? ???? ?? ??????? ? ? ? ?????? ?? ?? ? ???? ???? ?? ?? ? ??? ??? ???? ? ????? ???? ?????????? ?? ?????? ?? ?? ? ? ????? ???? ???? ?? ??? ????? ?????? ? ??? ? ?????? ?? ? ???? ?????????????? ????? ? ???????? ???????? ????????? ????? ??????? ??? ???? ??? ?? ? ? ????? ??? ????????? ??????? ? ??? ?? ? ????? ? ?????? ??? ???? ? ???????? ???????? ? ? ?? ?? ??? ??????????? ????????? ???? ????? ? ???? ???? ?? ?????? ?? ?? ??? ??????? ?? ????? ??? ? ?? ????????? ??? ??? ?? ? ?? ?????? ???????? ? ????? ? ???? ? ?? ????? ??? ??? ?? ??? ?????? ?? ? ?????? ??????? ?? ?? ??? ?? ???? ??????? ??????? ??? ? ????? ?????? ??? ?? ???? ?? ???????? ????? ?? ???????? ? ?? ? ??? ??? ?? ??? ? ? ? ??? ??? ?? ??? ??????? ??? ??? ? ? ? ?? ?? ? ???? ?? ?????????? ???? ????????? ?? ? ?? ? ?????????? ?? ????? ??? ?? ???? ??????? ?? ?? ???? ??? ??????? ???????? ???? ????? ? ???? ? ? ?? ?????? ?????????? ? ? ? ??? ????????? ???? ???? ????????? ?? ? ? ???? ?????? ??? ? ? ???? ??????? ?? ????? ?? ??????? ? ??? ?? ????? ?? ?????? ???? ???? ? ? ?????? ?? ? ? ??? ? ? ?? ???? ???? ??????? ?? ???????? ? ? ???? ??? ????? ????? ? ?? ???? ???????? ???? ????? ????? ??? ?? ????????? ???? ? ?? ??? ??? ? ??? ? ?????? ??????????????????? ???????? ?? ? ???????? ? ???????? ???? ?????? ?? ???? ??? ? ? ??? ??? ??? ??? ??? ?? ???? ???? ?? ???? ? ?? ?????????? ????

Limbers, Christine Ashley

2011-08-08

127

Mental Health, Sleep Quality, Drinking Motives, and Alcohol-Related Consequences: A Path-Analytic Model  

PubMed Central

Objective: Poor mental health, sleep problems, drinking motivations, and high-risk drinking are prevalent among college students. However, research designed to explicate the interrelationships among these health risk behaviors is lacking. This study was designed to assess the direct and indirect influences of poor mental health (a latent factor consisting of depression, anxiety, and stress) to alcohol use and alcohol-related consequences through the mediators of global sleep quality and drinking motives in a comprehensive model. Method: Participants were 1,044 heavy-drinking college students (66.3% female) who completed online surveys. Results: A hybrid structural equation model tested hypotheses involving relations leading from poor mental health to drinking motives and poorer global sleep quality to drinking outcomes. Results showed that poor mental health significantly predicted all four subscales of drinking motivations (social, coping, conformity, and enhancement) as well as poor sleep. Most of the drinking motives and poor sleep were found to explain alcohol use and negative alcohol consequences. Poor sleep predicted alcohol consequences, even after controlling for all other variables in the model. The hypothesized mediational pathways were examined with tests of indirect effects. Conclusions: This is the first study to assess concomitantly the relationships among three vital health-related domains (mental health, sleep behavior, and alcohol risk) in college students. Findings offer important implications for college personnel and interventionists interested in reducing alcohol risk by focusing on alleviating mental health problems and poor sleep quality. PMID:24172110

Kenney, Shannon R.; Lac, Andrew; LaBrie, Joseph W.; Hummer,, Justin F.; Pham, Andy

2013-01-01

128

Vision Related Quality of Life in Patients with Keratoconus  

PubMed Central

Purpose. The purpose of this study is to evaluate the vision related quality of life in patients with keratoconus by using the National Eye Institute Visual Function Questionnaire-25 (NEI-VFQ-25). Methods. Thirty patients presented with keratoconus (keratoconus group) and 30 healthy patients (control group) were included in this study. Twenty patients were using rigid gas permeable and 10 patients were not using contact lenses in keratoconus group. High and low contrast visual acuity and mean K values of the patients were recorded. Each subject completed the 25-item NEI-VFQ-25. Results. All subscales of NEI-VFQ-25 were lower in the keratoconus patients. The difference was more evident in the subscales of general vision, ocular pain, near vision, vision-specific mental health, vision-specific role difficulties, and peripheral vision (P < 0.05). Overall composite score was 75.2?±?17.2 in the keratoconus group and 93.2?±?5.6 in the control group (P = 0.00). Contact lens wearers had higher best corrected visual acuity in comparison with noncontact lens wearers (P = 0.028). Patients with low visual acuity (logMAR?>?0.4) in the better eye had lower distance vision, social functioning, mental health, and role difficulties. Meanwhile, patients with low visual acuity (logMAR?>?0.4) in the worse eye had lower general health scores (P < 0.05). Conclusions. Vision related quality of life was worse in keratoconus patients. Success in the contact lens usage and maintaining higher visual acuity may improve vision related quality of life. PMID:24868455

Aydin Kurna, Sevda; Altun, Ahmet; Gencaga, Tugba; Akkaya, Sezen; Sengor, Tomris

2014-01-01

129

Health-related Quality of Life Assessment & Application  

Cancer.gov

One of the main objectives of the Outcomes Research Branch (ORB) is to enhance the conceptualization and measurement of health-related quality of life (HRQOL) and to increase the application of HRQOL data for decision-making in research, practice, and policy. While there are many definitions of HRQOL, within the context of cancer outcomes research HRQOL can be understood as including physical and psychosocial well-being that are affected by cancer and its treatments as perceived by individuals throughout the cancer care continuum.

130

Ethiopian Youth in Israel: Gender-Related Alcohol Use and Related Problem Behaviour  

ERIC Educational Resources Information Center

Jewish people from Ethiopia have been immigrating to Israel since 1973. Difficulties with language, unemployment; low socioeconomic status and prejudice have been common place and linked to problem behaviour including school drop out, delinquency and drug abuse among Ethiopian youth. This research examines the patterns of alcohol use and related

Isralowitz, Richard; Shpiegel, Svetlana; Reznik, Alex; Laytin, Adam

2009-01-01

131

Autism severity and qualities of parent-child relations.  

PubMed

The aim of this study was to examine how severity of autism affects children's interactions (relatedness) and relationships with their parents. Participants were 25 parent-child dyads that included offspring who were children with autism aged from 4 to 14 years. The severity of the children's autism was assessed using the calibrated severity metric of the Autism Diagnostic Observation Schedule (Gotham et al. in J Autism Dev Disord 39:693-705, 2009). Parent-child dyads were videotaped in 10-min semi-structured play interactions, and qualities of interpersonal relatedness were rated with the Dyadic Coding Scales (Humber and Moss in Am J Orthopsychiatr 75(1):128-141, 2005). Quality of relationships between parents and children were evaluated with a parent self-report measure, the Parent Child Relationship Inventory (Gerard in Parent-Child Relationship Inventory (PCRI) manual. WPS, Los Angeles, 1994). Multivariate regression analysis revealed that severity of autism was inversely related to patterns of parent-child interaction but not to reported quality of parent-child relationship. We consider the implications for thinking about relatedness and relationships among children with autism, and opportunities for intervention. PMID:22673860

Beurkens, Nicole M; Hobson, Jessica A; Hobson, R Peter

2013-01-01

132

Postmenopausal Women's Quality of Sleep and its Related Factors  

PubMed Central

Aims: To asses self-reported sleep disturbance and its associated factors in 50-60-year-old Menopause women. Settings and Design: This cross sectional study included 700 healthy 50-60-year-old women volunteers who were postmenopausal for at least 1 year. The volunteers were interviewed after providing informed consent. The study questioner included two main aspects: Personal characteristics and the Pittsburgh Sleep Quality Index (PSQI). Data were analyzed by using SPSS 14 software. Results: The mean sleep scale score was 7.84 ± 4.4. Significant correlations had seen between sleep disturbance and characteristics of occupational status, educational status, husband's occupational status, and economical status, and (P = 0.002). There were no significant correlation between sleep disturbance and other personal characteristics, such as age; partner's age; number of children; family size; consumption of tea, coffee, or cola. Conclusions: Sleep disturbance is common in menopausal women. Taking into account the sleep-related personal characteristics, suitable interventions should be taken to improve sleep quality, which is a very important for maintaining the quality of life.

Taavoni, Simin; Ekbatani, Neda Nazem; Haghani, Hamid

2015-01-01

133

[Health-related quality of life in Parkinson's disease].  

PubMed

Parkinson's disease is a disabling and progressive neurological condition characterized by multiple motor and non motor symptoms that contribute to deterioration in quality of life. The diversity of symptoms associated with the disease and its management affect the patients on their physical, social and mental quality of life. The aim of this study was to identify key dimensions of health related quality of life (HRQOL) in a population affected with Parkinson's disease with a degree of mild-moderate impairment. Thirty six patients with Parkinson were recruited. The Hoehn and Yarh scale, the Unified Parkinson's Disease Rate Scale, the scale of activities of daily life and Schwab & England Get Up & Go Test were applied. HRQOL was assessed with the EuroQol-5D and the specific questionnaire Parkinson's Disease Questionnaire-39 items. The dimensions of the PDQ-39, except the PDQ-39 Pain domain and the EuroQol-5D correlated significantly with the severity of the disease. HRQOL was correlated with the functional status of patients. Only the PDQ-39 pain domain correlated with the risk of falls. Our results suggest that the HRQOL of patients with PD, in a state of mild-moderate impairment, is strongly influenced by disease severity and functional status. PMID:21163736

Cano-de la Cuerda, Roberto; Vela-Desojo, Lydia; Miangolarra-Page, Juan C; Macías-Macías, Yolanda; Muñoz-Hellin, Elena

2010-01-01

134

Is Quality Assurance in Higher Education Contextually Relative?  

ERIC Educational Resources Information Center

This article examines notions of quality and quality assurance in higher education. It does this by raising questions such as whether quality in higher education is the same as, for example, quality of clothing or the quality of meat in local butcheries. The article questions the assumption that if certain things, such as criteria or…

Ntshoe, I.; Higgs, P.; Wolhuter, C. C.; Higgs, L. G.

2010-01-01

135

Causes of Indoor Air Quality Problems in Schools: Summary of Scientific Research  

SciTech Connect

In the modern urban setting, most individuals spend about 80% of their time indoors and are therefore exposed to the indoor environment to a much greater extent than to the outdoors (Lebowitz 1992). Concomitant with this increased habitation in urban buildings, there have been numerous reports of adverse health effects related to indoor air quality (IAQ) (sick buildings). Most of these buildings were built in the last two decades and were constructed to be energy-efficient. The quality of air in the indoor environment can be altered by a number of factors: release of volatile compounds from furnishings, floor and wall coverings, and other finishing materials or machinery; inadequate ventilation; poor temperature and humidity control; re-entrainment of outdoor volatile organic compounds (VOCs); and the contamination of the indoor environment by microbes (particularly fungi). Armstrong Laboratory (1992) found that the three most frequent causes of IAQ are (1) inadequate design and/or maintenance of the heating, ventilation, and air-conditioning (HVAC) system, (2) a shortage of fresh air, and (3) lack of humidity control. A similar study by the National Institute for Occupational Safety and Health (NIOSH 1989) recognized inadequate ventilation as the most frequent source of IAQ problems in the work environment (52% of the time). Poor IAQ due to microbial contamination can be the result of the complex interactions of physical, chemical, and biological factors. Harmful fungal populations, once established in the HVAC system or occupied space of a modern building, may episodically produce or intensify what is known as sick building syndrome (SBS) (Cummings and Withers 1998). Indeed, SBS caused by fungi may be more enduring and recalcitrant to treatment than SBS from multiple chemical exposures (Andrae 1988). An understanding of the microbial ecology of the indoor environment is crucial to ultimately resolving many IAQ problems. The incidence of SBS related to multiple chemical sensitivity versus bioaerosols (aerosolized microbes), or the contribution of the microorganisms to the chemical sensitivities, is not yet understood. If the inhabitants of a building exhibit similar symptoms of a clearly defined disease with a nature and time of onset that can be related to building occupancy, the disease is generally referred to as ''building-related illness.'' Once the SBS has been allowed to elevate to this level, buildings are typically evacuated and the costs associated with disruption of the building occupants, identification of the source of the problem, and eventual remediation can be significant. Understanding the primary causes of IAQ problems and how controllable factors--proper HVAC system design, allocation of adequate outdoor air, proper filtration, effective humidity control, and routine maintenance--can avert the problems may help all building owners, operators, and occupants to be more productive (Arens and Baughman 1996). This paper provides a comprehensive summary of IAQ research that has been conducted in various types of facilities. However, it focuses primarily on school facilities because, for numerous reasons that will become evident, they are far more susceptible to developing IAQ problems than most other types of facilities; and the occupants, children, are more significantly affected than adults (EPA 1998).

Bayer, C.W.

2001-02-22

136

Health related quality of life in Malaysian children with thalassaemia  

PubMed Central

Background Health Related Quality of Life (HRQoL) studies on children with chronic illness such as thalassaemia are limited. We conducted the first study to investigate if children with thalassaemia have a lower quality of life in the four dimensions as measured using the PedsQL 4.0 generic Scale Score: physical, emotional, social and role (school) functioning compared to the healthy controls allowing for age, gender, ethnicity and household income. Methods The PedsQL 4.0 was administered to children receiving blood transfusions and treatments at Hospital Kuala Lumpur, Malaysia using PedsQL 4.0 generic Scale Score. Accordingly, the questionnaire was also administered to a control group of healthy school children. Socio-demographic data were also collected from patients and controls using an interview schedule designed for the study. Results Of the 96 thalassaemia patients approached, 78 gave consent to be interviewed giving a response rate of 81.3%. Out of 235 healthy controls approached, all agreed to participate giving a response rate of 100%. The mean age for the patients and schoolchildren is 11.9 and 13.2 years respectively. The age range for the patients and the schoolchildren is between 5 to 18 years and 7 to 18 years respectively. After controlling for age and demographic background, the thalassaemia patients reported having significantly lower quality of life than the healthy controls. Conclusion Thalassaemia has a negative impact on perceived physical, emotional, social and school functioning in thalassaemia patients which was also found to be worse than the children's healthy counterparts. Continuing support of free desferal from the Ministry of Health should be given to these patients. More understanding and support especially from health authorities, school authorities and the society is essential to enhance their quality of life. PMID:16813662

Ismail, Adriana; Campbell, Michael J; Ibrahim, Hishamshah Mohd; Jones, Georgina L

2006-01-01

137

A Solution to the Cosmological Problem of Relativity Theory  

NASA Astrophysics Data System (ADS)

After nearly a century of scientific investigation, the standard cosmological theory continues to have many unexplained problems, which invariably amount to one troubling statement: we know of no good reason for the Universe to appear just as it does, which is described extremely well by the flat ?CDM cosmological model. Therefore, the problem is not that the physical model is at all incompatible with observation, but that, as our empirical results have been increasingly constrained, it has also become increasingly obvious that the Universe does not meet our prior expectations; e.g., the evidence suggests that the Universe began from a singularity of the theory that is used to describe it, and with space expanding thereafter in cosmic time, even though relativity theory is thought to imply that no such objective foliation of the spacetime continuum should reasonably exist. Furthermore, the expanding Universe is well-described as being flat, isotropic, and homogeneous, even though its shape and expansion rate are everywhere supposed to be the products of local energy-content---and the necessary prior uniform distribution, of just the right amount of matter for all three of these conditions to be met, could not have been causally determined to begin with. And finally, the empirically constrained density parameters now indicate that all of the matter that we directly observe should make up only four percent of the total, so that the dominant forms of energy in the Universe should be dark energy in the form of a cosmological constant, ?, and cold dark matter (CDM). The most common ways of attacking these problems have been: to apply modifications to the basic physical model, e.g. as in the inflation and quintessence theories which strive to resolve the horizon, flatness, and cosmological constant problems; to use particle physics techniques in order to formulate the description of dark matter candidates that might fit with observations; and, in the case of the Big Bang singularity, to appeal to the need for a quantum theory of gravity. This thesis takes a very different approach to the problem, in hypothesising that, because our physical model really does appear to do a very good job of describing the observed cosmic expansion rate, and all the data indicate that our Universe might well expand precisely according to the flat ?CDM scale-factor, it may not be the model, but our basic expectations that need to be modified in order to derive a physical theory that stands in reasonable agreement with the empirical results; i.e., that it may actually be that we need to re-examine, and rationally modify our expectations of what should theoretically be, so that we might derive a theory to explain the empirical results of cosmology, which would be based solely on reasonably acceptable first principles. Therefore, a self-consistent theory is constructed here, upon re-consideration of the cosmological foundations of relativity theory, which eventually does afford an explanation of the cosmological problem, as it provides good reason to actually expect observations in the fundamental rest-frame to be described precisely by the flat ?CDM scale-factor which has been empirically constrained.

Janzen, Daryl

138

Resolving the Southern African Large Telescope's image quality problems  

NASA Astrophysics Data System (ADS)

Images obtained with the Southern African Large Telescope (SALT) during its commissioning phase in 2006 showed degradation due to a large focus gradient, astigmatism, and higher order optical aberrations. An extensive forensic investigation exonerated the primary mirror and the science instruments before pointing to the mechanical interface between the telescope and the spherical aberration corrector, the complex optical subassembly which corrects the spherical aberration introduced by the 11-m primary mirror. Having diagnosed the problem, a detailed repair plan was formulated and implemented when the corrector was removed from the telescope in April 2009. The problematic interface was replaced, and the four aspheric mirrors were optically tested and re-aligned. Individual mirror surface figures were confirmed to meet specification, and a full system test after the re-alignment yielded a root mean square wavefront error of 0.15 waves. The corrector was reinstalled in August 2010 and aligned with respect to the payload and primary mirror. Subsequent on-sky tests revealed spurious signals being sent to the tracker by the auto-collimator, the instrument that maintains the alignment of the corrector with respect to the primary mirror. After rectifying this minor issue, the telescope yielded uniform 1.1 arcsec star images over the full 10-arcmin field of view.

O'Donoghue, Darragh E.; Crause, Lisa A.; O'Connor, James; Strümpfer, Francois; Strydom, Ockert J.; Sass, Craig; Brink, Janus D.; Plessis, Charl du; Wiid, Eben; Love, Jonathan

2013-08-01

139

A radiation detector design mitigating problems related to sawed edges  

NASA Astrophysics Data System (ADS)

In pixelated silicon radiation detectors that are utilized for the detection of UV, visible, and in particular Near Infra-Red (NIR) light it is desirable to utilize a relatively thick fully depleted Back-Side Illuminated (BSI) detector design providing 100% Fill Factor (FF), low Cross-Talk (CT), and high Quantum Efficiency (QE). The optimal thickness of such detectors is typically less than 300?m and above 40?m and thus it is more or less mandatory to thin the detector wafer from the backside after the front side of the detector has been processed and before a conductive layer is formed on the backside. A TAIKO thinning process is optimal for such a thickness range since neither a support substrate on the front side nor lithographic steps on the backside are required. The conductive backside layer should, however, be homogenous throughout the wafer and it should be biased from the front side of the detector. In order to provide good QE for blue and UV light the conductive backside layer should be of opposite doping type than the substrate. The problem with a homogeneous backside layer being of opposite doping type than the substrate is that a lot of leakage current is typically generated at the sawed chip edges, which may increase the dark noise and the power consumption. These problems are substantially mitigated with a proposed detector edge arrangement which 2D simulation results are presented in this paper.

Aurola, A.; Marochkin, V.; Tuuva, T.

2014-12-01

140

Impact of problem finding on the quality of authentic open inquiry science research projects  

NASA Astrophysics Data System (ADS)

Problem finding is a creative process whereby individuals develop original ideas for study. Secondary science students who successfully participate in authentic, novel, open inquiry studies must engage in problem finding to determine viable and suitable topics. This study examined problem finding strategies employed by students who successfully completed and presented the results of their open inquiry research at the 2007 Connecticut Science Fair and the 2007 International Science and Engineering Fair. A multicase qualitative study was framed through the lenses of creativity, inquiry strategies, and situated cognition learning theory. Data were triangulated by methods (interviews, document analysis, surveys) and sources (students, teachers, mentors, fair directors, documents). The data demonstrated that the quality of student projects was directly impacted by the quality of their problem finding. Effective problem finding was a result of students using resources from previous, specialized experiences. They had a positive self-concept and a temperament for both the creative and logical perspectives of science research. Successful problem finding was derived from an idiosyncratic, nonlinear, and flexible use and understanding of inquiry. Finally, problem finding was influenced and assisted by the community of practicing scientists, with whom the students had an exceptional ability to communicate effectively. As a result, there appears to be a juxtaposition of creative and logical/analytical thought for open inquiry that may not be present in other forms of inquiry. Instructional strategies are suggested for teachers of science research students to improve the quality of problem finding for their students and their subsequent research projects.

Labanca, Frank

2008-11-01

141

Benchmarking Strategies for Measuring the Quality of Healthcare: Problems and Prospects  

PubMed Central

Over the last few years, increasing attention has been directed toward the problems inherent to measuring the quality of healthcare and implementing benchmarking strategies. Besides offering accreditation and certification processes, recent approaches measure the performance of healthcare institutions in order to evaluate their effectiveness, defined as the capacity to provide treatment that modifies and improves the patient's state of health. This paper, dealing with hospital effectiveness, focuses on research methods for effectiveness analyses within a strategy comparing different healthcare institutions. The paper, after having introduced readers to the principle debates on benchmarking strategies, which depend on the perspective and type of indicators used, focuses on the methodological problems related to performing consistent benchmarking analyses. Particularly, statistical methods suitable for controlling case-mix, analyzing aggregate data, rare events, and continuous outcomes measured with error are examined. Specific challenges of benchmarking strategies, such as the risk of risk adjustment (case-mix fallacy, underreporting, risk of comparing noncomparable hospitals), selection bias, and possible strategies for the development of consistent benchmarking analyses, are discussed. Finally, to demonstrate the feasibility of the illustrated benchmarking strategies, an application focused on determining regional benchmarks for patient satisfaction (using 2009 Lombardy Region Patient Satisfaction Questionnaire) is proposed. PMID:22666140

Lovaglio, Pietro Giorgio

2012-01-01

142

Health-related quality of life in clinical practice.  

PubMed

This month's question addressed something that many of us perhaps still have not formally incorporated into clinical practice, although we all are interested in our patients' health-related quality of life and want our inventions to result in improvements within this area. This view is exemplified by the response from Australia, which is one of several similar, unpublished, replies from the International Panel on this month's question (others came from Germany and Sweden). As mentioned in the introduction, health-related quality of life is becoming increasingly important as an outcome measure in clinical trials of new therapeutic interventions and several new measures have been and are developed. It is interesting and encouraging to hear about the new developments within this area that are being made by neuroscience nurses in different countries and within different subspecialties around the globe. As reported from the International Panel in here, new HRQL measures are currently developed in Canada and the UK focusing on patients with brains injuries and Huntington's disease (HD), respectively. In contrast to most established measures, the Canadian study has primarily been aimed at the positive aspects of life and not merely absence of the negative ones. Steve Smith in the UK has recently started developing a scale for use in clinical management of patients with HD. As far as I have been able to determine, this is the first measure of this kind to be developed for HD. Anyone who would like to know more about Steve's work or take part thereof is encouraged to contact him at this address above. Despite the fact that there already are several HRQL measures available, there is still a need for new instruments reflecting new aspects of health and disease. In addition, tools need to be designed for challenging conditions not readily addressed by existing measures. The replies from Canada and the UK represent these needs. It will be very interesting to eventually take part of the results from these colleagues' work. Finally, the terms HRQL and quality of life are often used interchangeable, indicating that focus also is needed on definition and conceptual construct within this field. There is still a great deal of controversy about what quality of life is and, as a result, how it is best measured and by whom. PMID:10726246

1999-12-01

143

75 FR 66125 - Federal Land Managers' Air Quality Related Values Work Group (FLAG)  

Federal Register 2010, 2011, 2012, 2013, 2014

...INTERIOR National Park Service Federal Land Managers' Air Quality Related Values Work Group...Comments document. The Federal Land Managers' Air Quality Related Values Work Group...objective approach for the Federal Land Managers (FLMs), i.e., National Park...

2010-10-27

144

Interaction Quality in Political-Administrative Relations in the United States: Testing a MultiDimensional Model  

Microsoft Academic Search

Complementarity has become the new label to characterize the relations between elected officials and professional public administrators. In response to increasingly complex and challenging problems that face local government officials today, public administration scholars have explored how to improve the efficacy of interactions between elected and appointed officials. To do so, scholars have proposed that characteristics of quality interactions include

Tansu Demir; Renee Nank

2012-01-01

145

Health-related quality of life in chronic coagulation disorders.  

PubMed

Measurement of health-related quality of life (HR-QoL) is used in patients with haemophilia as a way of assessing the effectiveness of health care, especially as cure is not possible. We report the first such study on patients with chronic coagulation disorders in Australia, using The RAND 36-item Health Survey 1.0 (SF-36), a standardized validated questionnaire combined with a semistructured interview. The mean scores for the eight domains of the SF-36 ranged from 52.5 +/- 42.1 for physical role to 80.0 +/- 20.0 for social functioning. Comparison with normative data obtained from the Australian Bureau of Statistics (ABS) demonstrated a reduction in all domains in this population with statistically significant reductions in general health, physical role limitation and vitality. Comparison with other studies indicates that the HR-QoL of patients with haemophilia and von Willebrand's disorder in Australia is comparable with other Western countries, reflecting the overall similar quality of care available to these patients. This study also provides a good cross-sectional view of the psychosocial factors of life in patients in Australia and recognizes the positive family support available to this population, while raising relevant shortcomings in schools and at the workplace that need to be studied further in a controlled manner. PMID:17083515

Talaulikar, D; Shadbolt, B; McDonald, A; Pidcock, M

2006-11-01

146

Health-Related Quality of Life in Pediatric Minor Injury  

PubMed Central

Objective To evaluate the feasibility, reliability, validity, and responsiveness of the Pediatric Quality of Life Inventory 4.0 Generic Core Scales (PedsQL) in the first 2 weeks after pediatric emergency department care of minor injury. Design Prospective cohort study. Setting Pediatric hospital emergency department. Participants Children and adolescents with minor injury (n = 334). Main Outcome Measures Child- and parent-reported clinical outcomes and PedsQL scale scores. Results The PedsQL had good to excellent internal consistency reliability (? range, 0.73–0.93). For each day that the clinical symptoms persisted, there were consistent decreases in mean health-related quality of life (HRQOL) scores (validity testing). There were significantly greater negative changes in mean HRQOL scores for fractures vs soft-tissue injuries and for lower vs upper extremity injuries. Clinical outcomes categorized as poor had large negative changes in HRQOL not seen in good outcome groups. Distribution-based indicators of change supported good responsiveness (effect sizes for the physical summary score, 0.01–2.44; group differences at follow-up exceeded estimates of the minimal importance difference). Conclusions The PedsQL is feasible, reliable, and demonstrates good construct and discriminant validity and responsiveness in measuring short-term outcome after minor injury care in the pediatric emergency department. Assessing short-term outcome from the patient perspective with HRQOL measures may greatly enhance our ability to evaluate the effectiveness of emergency department care. PMID:22213754

Stevens, Martha W.; Hainsworth, Keri R.; Weisman, Steven J.; Layde, Peter M.

2013-01-01

147

Quality of life of people with mental health problems: a synthesis of qualitative research  

PubMed Central

Purpose To identify the domains of quality of life important to people with mental health problems. Method A systematic review of qualitative research undertaken with people with mental health problems using a framework synthesis. Results We identified six domains: well-being and ill-being; control, autonomy and choice; self-perception; belonging; activity; and hope and hopelessness. Firstly, symptoms or ‘ill-being’ were an intrinsic aspect of quality of life for people with severe mental health problems. Additionally, a good quality of life was characterised by the feeling of being in control (particularly of distressing symptoms), autonomy and choice; a positive self-image; a sense of belonging; engagement in meaningful and enjoyable activities; and feelings of hope and optimism. Conversely, a poor quality life, often experienced by those with severe mental health difficulties, was characterized by feelings of distress; lack of control, choice and autonomy; low self-esteem and confidence; a sense of not being part of society; diminished activity; and a sense of hopelessness and demoralization. Conclusions Generic measures fail to address the complexity of quality of life measurement and the broad range of domains important to people with mental health problems. PMID:23173689

2012-01-01

148

Gender Differences among Adolescents with Gambling-Related Problems  

Microsoft Academic Search

Data from five recent studies using self-reports were merged to explore gender differences in the characteristics of adolescent\\u000a problem gambling, including comorbidity with other youth problems. The sample consisted of 2,750 male and 2,563 female participants.\\u000a Male problem gamblers were more likely than females to report signs of psychological difficulties while females were more\\u000a likely to note behavioural problems as

Stephen Ellenbogen; Jeffrey Derevensky; Rina Gupta

2007-01-01

149

Pediatrician-parent-child communication: problem-related or not?  

Microsoft Academic Search

Pediatricians are generally confronted with a variety of health problems. Each of these problems may benefit from another pattern of healthcare communication. It is unknown whether the communication process during pediatric visits actually differs by the nature of the child's problem. This study first examined whether three formerly identified communication patterns could be distinguished within real-life pediatric outpatient encounters (N

SANDRA VAN DULMEN

150

Boar seminal plasma components and their relation with semen quality.  

PubMed

Select boar seminal plasma (SP) components and their relation to semen quality were investigated. Thirty nine boars from three artificial insemination (AI) centers were divided into group A (GA:?>?80% normal sperm and >70% motility) and group B (GB:?related to semen quality. The analysis of biochemical parameters could provide extra information about reproductive health of AI boars. PMID:23083319

López Rodríguez, Alfonso; Rijsselaere, Tom; Beek, Josine; Vyt, Philip; Van Soom, Ann; Maes, Dominiek

2013-02-01

151

Indoor air quality research related to unvented space convective heaters  

SciTech Connect

Unvented hydrocarbon-fueled space heaters represent an alternative source of heating comfort for the consumer. Included in this category are kerosene, natural gas, and LPG-fueled convective heaters. The increased use of these heaters has drawn concern from some sources as presenting a potential health hazard as a result of decreased indoor air quality from the unvented combustion products. The U.S. Consumer Product Safety Commission (CPSC), in particular, has instituted a major program to bring about the adoption of voluntary standards for the emission rates of trace gases from unvented space heaters. Both the kerosene heater industry and the gas industry have established technical task groups to work with the CPSC to identify and resolve the technical issues associated with the need for an emission standard from unvented heaters. All three groups are supporting research to support these task groups. The research currently underway addresses problems associated with emission measurement protocols, emission product concentration distribution under controlled test house conditions, heater use studies, and field surveys of emission product levels. The gas industry's research projects are described and preliminary results from some of them presented.

Billick, I.H.

1985-01-01

152

Energy Use and Related Risk Management Problems in CEE Countries  

NASA Astrophysics Data System (ADS)

Nowadays, the efficiency of energy use in the Central and East-European (CEE) countries is insufficient, being much lower than in the "Old Europe". The problem becomes increasingly pressing due to non-stop increasing prices of energy carriers (especially of crude oil). The authors trace the development of research activities in this sphere, classifying the revealed changes in parameters of energy consumption processes in particular time intervals into deterministic, probabilistic, and fuzzy. The paper presents a thorough analysis of decision-making in the energy management at its different levels - normative, strategic, and operative. Particular attention is given to the management under uncertainty conditions - i.e. to the risk management. The most wanted research directions in this area proposed by the energy and environment policy (EEP) Center specially created for CEE countries concern management under risk connected with innovations, international activities, loss of reputation, etc. The authors consider in detail the risk management with insufficient knowledge (non-knowledge) and under chaos. Much consideration is given to the scenario management and the game theory principles as related to the sphere of energy use.

Ney, R.; Michna, J.; Ekmanis, J.; Zeltins, N.; Zebergs, V.

2008-03-01

153

Challenges facing the forest industry in relation to seed dormancy and seed quality.  

PubMed

Artificial regeneration of forests through planting requires high quantities of quality seeds for growing vigorous seedlings. These seedlings are raised in nurseries, where germination capacity (GC) and speed are the most important germination parameters. Germination performance is enhanced by prescribing species-specific dormancy-breaking treatments to individual seedlots in bare-root and container nurseries. For most conifer species in British Columbia, the dormancy-breaking treatments and germination conditions have been worked out, but fine-tuning and optimization could improve germination capacity and speed of germination. Implications of inter- and intra-species variations in germination behaviour and seed quality and their influence on the development of unintentional directional selection of specific genotypes are discussed. The potential of molecular and genomics approaches to understand the underlying biology of seed germination-related problems is also discussed. PMID:21898246

Stoehr, Michael U; El-Kassaby, Yousry A

2011-01-01

154

Modeling and efficient optimization for object-based scalability and some related problems.  

PubMed

MPEG-4 is the first visual coding standard that allows coding of scenes as a collection of individual audio-visual objects. We present mathematical formulations for modeling object-based scalability and some functionalities that it brings with it. Our goal is to study algorithms that aid in semi-automating the authoring and subsequent selective addition/dropping of objects from a scene to provide content scalability. We start with a simplistic model for object-based scalability using the "knapsack problem"--a problem for which the optimal object set can be found using known schemes such as dynamic programming, the branch and bound method and approximation algorithms. The above formulation is then generalized to model authoring or multiplexing of scalable objects (e.g., objects encoded at various target bit-rates) using the "multiple choice knapsack problem." We relate this model to several problems that arise in video coding, the most prominent of these being the bit allocation problem. Unlike previous approaches to solve the operational bit allocation problem using Lagrangean relaxation, we discuss an algorithm that solves linear programming (LP) relaxation of this problem. We show that for this problem the duality gap for Lagrange and LP relaxations is exactly the same. The LP relaxation is solved using strong duality with dual descent--a procedure that can be completed in "linear" time. We show that there can be at most two fractional variables in the optimal primal solution and therefore this relaxation can be justified for many practical applications. This work reduces problem complexity, guarantees similar performance, is slightly more generic, and provides an alternate LP-duality based proof for earlier work by Shoham and Gersho (1988). In addition, we show how additional constraints may be added to impose inter-dependencies among objects in a presentation and discuss how object aggregation can be exploited in reducing problem complexity. The marginal analysis approach of Fox (1966) is suggested as a method of re-allocation with incremental inputs. It helps in efficiently re-optimizing the allocation when a system has user interactivity, appearing or disappearing objects, time driven events, etc. Finally, we suggest that approximation algorithms for the multiple choice knapsack problem, which can be used to quantify complexity vs. quality tradeoff at the encoder in a tunable and universal way. PMID:18262907

Batra, P

2000-01-01

155

Lignocellulosic Biomass Quality Changes in Relation to Available Feedstock Tonnage  

Technology Transfer Automated Retrieval System (TEKTRAN)

The compositional and functional quality of lignocellulosic biomass impacts their utilization as feedstocks for ethanol production. However, these compositional and functional qualities are in turn skewed by the assembly system used for the biomass feedstock retrieval and delivery. Accessing differe...

156

Energy-related indoor environmental quality research: A priority agenda  

SciTech Connect

A multidisciplinary team of IEQ and energy researchers has defined a program of priority energy-related IEQ research. This paper describes the methods employed to develop the agenda, and 35 high priority research and development (R&D) project areas related to four broad goals: (1) identifying IEQ problems and opportunities; (2) developing and evaluating energy-efficient technologies for improving IEQ; (3) developing and evaluating energy-efficient practices for improving IEQ; and (4) encouraging or assisting the implementation of technologies or practices for improving IEQ. The identified R&D priorities reflect a strong need to benchmark IEQ conditions in small commercial buildings, schools, and residences. The R&D priorities also reflect the need to better understand how people are affected by IEQ conditions and by the related building characteristics and operation and maintenance practices. The associated research findings will provide a clearer definition of acceptable IEQ that is required to guide the development of technologies, practices, standards, and guidelines. Quantifying the effects of building characteristics and practices on IEQ conditions, in order to provide the basis for development of energy efficient and effective IEQ control measures, was also considered a priority. The development or advancement in a broad range of IEQ tools, technologies, and practices are also a major component of the priority research agenda. Consistent with the focus on ''energy-related'' research priorities, building ventilation and heating, ventilating and air conditioning (HVAC) systems and processes are very prominent in the agenda. Research related to moisture and microbiological problems, particularly within hot and humid climates, is also prominent within the agenda. The agenda tends to emphasize research on residences, small commercial buildings, and schools because these types of buildings have been underrepresented in prior research. Most of the research areas apply to both new construction and existing buildings. Nearly all of the recommended priority R&D project areas include tasks intended to facilitate the communication and implementation of the research results. In addition, the priority agenda includes several projects specifically designed to facilitate or stimulate the use of existing energy-efficient technologies and practices for improving IEQ. To assure that the research program continues to meet the needs of stakeholders and to facilitate the coordination of research among sponsors, the core team recommends an annual meeting attended by sponsors, a balanced group of stakeholders, and a selection of researchers implementing the agenda.

Fisk, W.J.; Brager, G.; Burge, H.; Cummings, J.; Levin, H.; Loftness, V.; Mendell, M.J.; Persily, A.; Taylor, S.; Zhang, J.S.

2002-08-01

157

Quality of life and the related factors in spouses of veterans with chronic spinal cord injury  

PubMed Central

Background The quality of life (QOL) of caregivers of individuals with chronic spinal cord injuries may be affected by several factors. Moreover, this issue is yet to be documented fully in the literature. The purpose of this study was to evaluate the health related quality of life of spouses who act as primary caregivers of veterans with chronic spinal cord injuries in Iran. Methods The study consisted of 72 wives of 72 veterans who were categorized as spinal cord injured patients based on the American Spinal Injury Association (ASIA) classification. Health related quality of life was assessed by the Short Form (SF-36) Health Survey. Pearson's correlation was carried out to find any correlation between demographic variables with SF-36 dimensions. To find the effect of the factors like age, employment status, duration of care giving, education, presence or absence of knee osteoarthritis, and mechanical back pain on different domains of the SF-36 health survey, Multivariate analysis of variance (MANOVA) was used. Results The mean age of the participants was 44.7 years. According to the ASIA classification 88.9% and 11.1% of the veterans were paraplegic and tetraplegic respectively. Fifty percent of them had a complete injury (ASIA A) and 85% of the spouses were exclusive care givers. All of the SF-36 scores of the spouses were significantly lower than the normal population. Pearson's correlation demonstrated a negative significant correlation between both age and duration of caring with the PF domain. The number of children had a negative correlation with RE and VT. Conclusion The burden of caregiving can impact the QOL of caregivers and cause health problems. These problems can cause limitations for caregiver spouses and it can lead to a decrease in the quality of given care. PMID:23506336

2013-01-01

158

Bacteriological monitoring and sustainable management of beach water quality in Malaysia: problems and prospects.  

PubMed

Despite the growing demand of tourism in Malaysia, there are no resolute efforts to develop beaches as tourist destinations. With no incentives to monitor public beaches or to use them in a sustainable manner, they might eventually degenerate in quality as a result of influx of pollutants. This calls for concerted action plans with a view to promoting their sustainable use. The success of such plans is inevitably anchored on the availability of robust quality monitoring schemes. Although significant efforts have been channelled to collation and public disclosure of bacteriological quality data of rivers, beach water monitoring appears left out. This partly explains the dearth of published information related to beach water quality data. As part of an on-going nation-wide surveillance study on the bacteriological quality of recreational beaches, this paper draws on a situation analysis with a view to proffering recommendations that could be adapted for ensuring better beach water quality in Malaysia. PMID:22980239

Dada, Ayokunle Christopher; Asmat, Ahmad; Gires, Usup; Heng, Lee Yook; Deborah, Bandele Oluwaseun

2012-05-01

159

Pediatrician–parent–child communication: problem-related or not?  

Microsoft Academic Search

Pediatricians are generally confronted with a variety of health problems. Each of these problems may benefit from another pattern of healthcare communication. It is unknown whether the communication process during pediatric visits actually differs by the nature of the child’s problem. This study first examined whether three formerly identified communication patterns could be distinguished within real-life pediatric outpatient encounters (N=846).

Sandra van Dulmen

2004-01-01

160

Health-related quality of life in migrant preschool children  

PubMed Central

Background Minority groups have a lower health-related quality of life (HRQOL), but there is little information if this finding also applies to children. In this study, we compared HRQOL between young children with and without migrant parents. Methods Two cross-sectional studies of culturally diverse preschool populations in Switzerland: Ballabeina (40 preschools, 258 girls and 232 boys aged 4 to 6 years) and Youp’là Bouge (58 child care centers, 453 girls and 522 boys aged 2 to 4 years). Most children were born in Switzerland (Ballabeina: 92.3%; Youp’là Bouge: 93.7%). Number of migrant parents was considered as the main exposure. HRQOL was measured using the 23-item Pediatric Quality of Life Inventory. Results Children of migrant parents had a significantly lower HRQOL total score (mean?±?SD, Ballabeina: 84.2?±?9.1; 82.7?±?9.6 and 81.7?±?11.7 for children with none, one or two migrant parents, respectively; Youp’là Bouge: 83.8?±?8.6; 82.9?±?9.5; 80.7?±?11.7, all p?

2013-01-01

161

Causes of Indoor Air Quality Problems in Schools: Summary of Scientific Research.  

ERIC Educational Resources Information Center

Research show that one in five U.S. schools has indoor air quality (IAQ) problems; 36 percent have inadequate heating, ventilation, and air conditioning (HVAC) systems; and there appears to be a correlation between IAQs and the proportion of a school's students coming from low-income households. This report examines the IAQ issue in U.S. public…

Bayer, Charlene W.; Crow, Sidney A.; Fischer, John

162

Preventing Indoor Air Quality Problems in Educational Facilities: Guidelines for Hot, Humid Climates. Revised.  

ERIC Educational Resources Information Center

This manual addresses the errors that occur during new construction that subsequently contribute to indoor air quality (IAQ) problems in newly constructed buildings in hot and humid climates, and offers guidelines for preventing them during the design and construction phases. It defines the roles and responsibilities of the design team, the…

Odom, J. David; DuBose, George

163

Reciprocal and Complementary Sibling Interactions, Relationship Quality and Socio-Emotional Problem Solving  

ERIC Educational Resources Information Center

Associations between reciprocal and complementary sibling interactions, sibling relationship quality, and children's socio-emotional problem solving were examined in 40 grade 5-6 children (M age = 11.5 years) from middle class, Caucasian, Canadian families using a multi-method approach (i.e. interviews, self-report questionnaires, daily diary…

Karos, Leigh Karavasilis; Howe, Nina; Aquan-Assee, Jasmin

2007-01-01

164

Summary of the setting, air quality problems, and meteorological activities in the oil shale region  

SciTech Connect

This document discusses air quality problems that may arise in the valleys of the Uinta mountains and the Roan Ridge in the oil shale area in western Colorado and eastern Utah. A meteorological field expedition that was undertaken in August 1980 by LASL and PNL is described. (DLC)

Barr, S.; Clements, W.E.

1981-01-01

165

Factors associated with health-related quality of life among Indian women in mining and agriculture  

PubMed Central

Background Women facing social and economic disadvantage in stressed communities of developing countries are at greater risk due to health problems. This paper investigates the relationships between structural, health and psychosocial predictors among women in mining and agricultural communities. This paper is a report of a study of the predictors of the health-related quality of life among Indian women in mining and agricultural communities. Methods A descriptive cross-sectional research design was used. The instruments used are SF-36 Health Survey and Coping Strategy Checklist. ANOVA, MANOVA and GLM were used in the analysis. The study was conducted between January-September 2008 with randomly selected women in a mining (145) and an agricultural community (133) in India. Results Women in the agricultural community had significantly increased Physical Health, Mental Health and SF36 scores compared with those in the mining community. Years of stay, education and employment were significant predictors among women in the agricultural community. 39% (33%) and 40% (26%) of the variance in Physical and Mental health respectively among women in agricultural and mining communities are predicted by the structural, health and psychosocial variables. Conclusion Perceived health status should be recognised as an important assessment of Physical and Mental Health among women in rural stressed communities. Cognitive, emotional and behavioural coping strategies are significant predictors of health related quality of life. Implications. Nurses should use the SF-36 as a diagnostic tool for assessing health related quality of life among women and discuss coping strategies, so that these can target women’s adaptive behaviour. This should be an essential part of the nursing process for facilitating adaptive process for improved health related quality of life. PMID:23336256

2013-01-01

166

Health-related quality of life and related factors of military police officers  

PubMed Central

Purpose The present study aimed to determine the effect of demographic characteristics, occupation, anthropometric indices, and leisure-time physical activity levels on coronary risk and health-related quality of life among military police officers from the State of Santa Catarina, Brazil. Methods The sample included 165 military police officers who fulfilled the study’s inclusion criteria. The International Physical Activity Questionnaire and the Short Form Health Survey were used, in addition to a spreadsheet of socio-demographic, occupational and anthropometric data. Statistical analyses were performed using descriptive analysis followed by Spearman Correlation and multiple linear regression analysis using the backward method. Results The waist-to-height ratio was identified as a risk factor low health-related quality of life. In addition, the conicity index, fat percentage, years of service in the military police, minutes of work per day and leisure-time physical activity levels were identified as risk factors for coronary disease among police officers. Conclusions These findings suggest that the Military Police Department should adopt an institutional policy that allows police officers to practice regular physical activity in order to maintain and improve their physical fitness, health, job performance, and quality of life. PMID:24766910

2014-01-01

167

Health-Related Quality of Life after Ischemic Stroke: The Impact of Pharmaceutical Interventions on Drug Therapy (Pharmaceutical Care Concept)  

Microsoft Academic Search

BACKGROUND: Health-related quality of life (HRQoL) after stroke is an important healthcare measure. Pharmaceutical Care (PC) is an evolving concept to optimize drug-therapy, minimize drug-related problems, and improve HRQoL of patients. The purpose of this study was to evaluate the impact of PC on HRQoL, as determined by Short Form 36 (SF-36) among patients after TIA or ischemic stroke one-year

Carina Hohmann; Roland Radziwill; Juergen M Klotz; Andreas H Jacobs

2010-01-01

168

Lifestyle and health-related quality of life in Asian patients with total hip arthroplasties.  

PubMed

Total hip arthroplasty reduces pain and restores physical function in patients with hip joint problems. This study examined lifestyle and health-related quality of life before and after total hip arthroplasty in Japanese and Chinese patients. Two hospitals in China recruited 120 patients and 120 Japanese patients matched by age and operative status were drawn from a prospective cohort database. Oxford Hip Score, EuroQol, and characteristics of Asian lifestyle and attitudes toward the operation were assessed. There were no differences between patients from the two countries in quality-of-life-scale scores: postoperative patients had significantly better quality-of-life scores than preoperative patients in both countries. In China, patients who reported that living at home was inconvenient had significantly worse Oxford Hip Scores than those who did not. Mean scores for anxiety items concerning possible dislocation and durability of the implant were significantly higher in Japanese than in Chinese subjects. Our findings suggest that providing information about housing conditions and lifestyles would result in improved quality of life and reduced anxiety in patients with implanted joints. PMID:24845456

Fujita, Kimie; Xia, Zhenlan; Liu, Xueqin; Mawatari, Masaaki; Makimoto, Kiyoko

2014-09-01

169

Quantification and relative comparison of different types of uncertainties in sewer water quality modeling.  

PubMed

Quantifiable sources of uncertainty have been identified for a case study of integrated modeling of a sewer system with a more downstream wastewater treatment plant and storage sedimentation tank. The different sources were classified in model input and model-structure-related uncertainties. They were quantified and propagated towards the uncertainty in the event-based prediction of sewer emissions (flow, and physico-chemical water quality concentrations and loads). Based on the concept of variance decomposition, the total prediction uncertainty was split into the contributions of the various uncertainty sources and the different submodels. Although the results strongly depend on the water quality variable considered, it is in most general terms concluded that the uncertainty contribution by the water quality submodels is an order of magnitude higher than that for the flow submodels. Future model improvement should therefore mainly focus on water quality data collection, which would reduce current problems of spurious model calibration and verification, but also of knowledge gaps in in-sewer processes. PMID:18554682

Willems, Patrick

2008-07-01

170

Free Boundary Problems in Shock Reflection/Diffraction and Related Transonic Flow Problems  

E-print Network

Shock waves are steep wave fronts that are fundamental in nature, especially in high-speed fluid flows. When a shock hits an obstacle, or a flying body meets a shock, shock reflection/diffraction phenomena occur. In this paper, we show how several longstanding shock reflection/diffraction problems can be formulated as free boundary problems, discuss some recent progress in developing mathematical ideas, approaches, and techniques for solving these problems, and present some further open problems in this direction. In particular, these shock problems include von Neumann's problem for shock reflection-diffraction by two-dimensional wedges with concave corner, Lighthill's problem for shock diffraction by two-dimensional wedges with convex corner, and Prandtl-Meyer's problem for supersonic flow impinging onto solid wedges, which are also fundamental in the mathematical theory of multidimensional conservation laws.

Gui-Qiang G. Chen; Mikhail Feldman

2014-12-03

171

Community Mobilization and the Framing of Alcohol-Related Problems  

PubMed Central

The goal of this study was to describe how activists engaged in campaigns to change alcohol policies in inner city areas framed alcohol problems, and whether or not their frameworks reflected major models used in the field, such as the alcoholism as a disease model, an alcohol problems perspective, or a public health approach to alcohol problems. The findings showed that activists’ models shared some aspects with dominant approaches which tend to focus on individuals and to a lesser extent on regulating alcohol marketing and sales. However, activists’ models differed in significant ways by focusing on community level problems with alcohol; on problems with social norms regarding alcohol use; and on the relationship of alcohol use to illicit drugs. PMID:20617029

Herd, Denise

2010-01-01

172

Self-reported sleep quality, strain and health in relation to perceived working conditions in females.  

PubMed

Self-reported sleep quality, strain and health in relation to perceived working conditions in females The aims of this study were to examine self-reported sleep quality, perceived strain and health in relation to working conditions; the prevalence and severity of sleep disturbances and daytime distress arising from poor sleep in women on different work shifts. Furthermore, to see whether females with gastrointestinal symptoms, joint-, back- or muscle-pain and who are dissatisfied with working hours differ with regard to the above aspects. Finally, degree of strain-related symptoms and sleep difficulties were tested as predictors of sleep quality and general health outcome. Important research questions are whether registered nurses and those on rotating work shifts have greater sleep problems than others. A total of 156 females, aged 20-59 years, working at three different casualty departments, answered structured questionnaires. The results showed a persistently high rate of psycho-physiological long-term effects of stress related to working conditions. Thirty-four per cent were dissatisfied with their working hours, and exhibited significantly more mental strain, fatigue/excessive tiredness and inability to relax after work because of involuntary thoughts, in relation to working conditions than others did. Sixty-two females (39.7%) complained of insufficient sleep. The sleep quality outcome was significantly predicted by difficulty falling asleep (odds ratio 8.4), difficulty in falling asleep after nocturnal awakening (odds ratio 3.4) and perceived exhaustion (odds ratio 2.6). Females suffering from gastrointestinal symptoms and joint-, back- and muscle symptoms for several days in a week or even everyday were especially sensitive to worse sleep quality. Independent of work shifts, registered nurses exhibited a higher degree of mental strain and prolonged recovery in comparison with others. In conclusions, sleep initiation difficulties, troubled sleep and exhaustion significantly predicted reduced sleep quality outcome with decreased resilience to stress and vulnerability to psycho-physiological disorders in females working within the health care system. PMID:12000672

Edéll-Gustafsson, Ulla M; Kritz, Eivor I K; Bogren, I Kristina

2002-06-01

173

RESEARCH Open Access Evaluation of health related quality of life in  

E-print Network

RESEARCH Open Access Evaluation of health related quality of life in children with immune disorder that is often life-altering for children and their parents. Health related quality of life (HRQL their inclusion in the study and 6 months after diagnosis. Results: Over the six month period, quality of life

Boyer, Edmond

174

HEALTH RELATED QUALITY OF LIFE MEASURES (HRQoL) IN ORTHOPTICS Jill Carlton and Eva Kaltenthaler  

E-print Network

HEALTH RELATED QUALITY OF LIFE MEASURES (HRQoL) IN ORTHOPTICS Jill Carlton and Eva Kaltenthaler.shef.ac.uk/scharr Contact: Jill Carlton - j.carlton@sheffield.ac.uk . Health related quality of life (HRQoL) measures OR visual acuity OR vision loss OR vision impairment 2. Questionnaire OR quality of life OR cosme* 3. 1

Oakley, Jeremy

175

Evaluating the Importance of Service Quality Factors in PMR Based on Grey Relational Theory  

Microsoft Academic Search

Based on the grey relation theory, the paper presented a grey relational assessment model to evaluate the importance of various quality factors in property management of residence (PMR). First, this study found out twenty main service quality factors that influence overall service quality of property management of residence (SQPMR) based on SERVQUAL instrument and interview with experts and literature review,

Chen Yongqing; Huang Jiatao

2009-01-01

176

Health-Related Quality of Life Following Blind Rehabilitation  

PubMed Central

Purpose The purpose of this study was to investigate the effect of residential blind rehabilitation on patients’ vision targeted health-related quality of life (HRQOL) and general physical and mental function. Methods The National Eye Institute 25-item Visual Function Questionnaire (NEI VFQ) plus appendix questions, the 12 item Short-Form Health Survey (SF-12), Hope Scale and Coopersmith self-esteem inventory were administered to 206 legally blind veterans prior to their entering a residential (in-patient) blind rehabilitation program and again to 185 and 176 of the original cohort at two and six months after completion of the rehabilitation program, respectively. Data on visual acuity, visual field extent, contrast sensitivity and scanning ability were also collected. The duration of the in-patient rehabilitation programs ranged from 11–109 days. Questionnaire scores were compared pre-rehabilitation and post-rehabilitation. Results Following rehabilitation there was a significant improvement in nine of eleven NEI VFQ subscales and in a composite score at both 2- and 6-month post-rehab intervals. Mental health (SF-12) and self esteem also improved significantly although physical health ratings declined over the course of the study (approximately 10 months). Conclusions Residential blind rehabilitation appears to improve patients’ self-reported vision-targeted HRQOL, self-esteem, and mental health aspects of generic HRQOL. PMID:18392688

Kuyk, Thomas; Liu, Lei; Elliott, Jeffry L.; Grubbs, Hartley E.; Owsley, Cynthia; McGwin, Gerald; Griffin, Russell L.; Fuhr, Patti S.

2009-01-01

177

Systematic review of health-related quality of life models  

PubMed Central

Background A systematic literature review was conducted to (a) identify the most frequently used health-related quality of life (HRQOL) models and (b) critique those models. Methods Online search engines were queried using pre-determined inclusion and exclusion criteria. We reviewed titles, abstracts, and then full-text articles for their relevance to this review. Then the most commonly used models were identified, reviewed in tables, and critiqued using published criteria. Results Of 1,602 titles identified, 100 articles from 21 countries met the inclusion criteria. The most frequently used HRQOL models were: Wilson and Cleary (16%), Ferrans and colleagues (4%), or World Health Organization (WHO) (5%). Ferrans and colleagues’ model was a revision of Wilson and Cleary’s model and appeared to have the greatest potential to guide future HRQOL research and practice. Conclusions Recommendations are for researchers to use one of the three common HRQOL models unless there are compelling and clearly delineated reasons for creating new models. Disease-specific models can be derived from one of the three commonly used HRQOL models. We recommend Ferrans and colleagues’ model because they added individual and environmental characteristics to the popular Wilson and Cleary model to better explain HRQOL. Using a common HRQOL model across studies will promote a coherent body of evidence that will more quickly advance the science in the area of HRQOL. PMID:23158687

2012-01-01

178

Impact of insomnia on health-related quality of life.  

PubMed

With the increased interest in sleep disorders, the definition of insomnia has been refined and extended so that the aetiology of these disorders is considered in addition to their operational characteristics. The International Classification of Sleep Disorders is the most advanced nosology available. It encompasses, although it does not define, the concept that sleep may be disturbed either through disruption of the mechanisms that control sleep and wakefulness, or by factors external to those mechanisms. Formal measures of quality of life invariably include assessment of sleep or the consequences of disturbed sleep, such as fatigue. Generally, when these assessments are used, sleep has been disturbed by external factors, rather than by disruption of the mechanisms that control sleep. Occasional insomnia does not necessarily need medical treatment, but it may nevertheless cost national economies significant sums through absenteeism and sleep-related accidents. Profound, longer term insomnias may arise either because of failure of the mechanisms central to sleep (i.e. as sleep disorders) or as a consequence of medical disorders (i.e. as disordered sleep). These insomnias should be treated, because the former may lead to the development of costlier and more intransigent psychiatric disorders, whereas the latter should be treated for compassionate reasons, within the framework of palliative medicine. Insomnia as a sleep disorder can require either psychological or pharmacological treatment, depending on the diagnosis, whereas insomnia as a symptom may require treatment with newer hypnotics, e.g. zopiclone. PMID:10163423

Idzikowski, C

1996-01-01

179

Quality of Working Life of Nurses and its Related Factors  

PubMed Central

Background: Nurses as the largest group of health care providers should enjoy a satisfactory quality of working life to be able to provide quality care to their patients. Therefore, attention should be paid to the nurses’ working life. Objectives: This study aimed to investigate the quality of nurses' working life in Kashans' hospitals during 2012. Materials and Methods: This cross-sectional study was conducted on 200 nurses during 2012. The data-gathering instrument consisted of two parts. The first part consisted of questions on demographic information and the second part was the Walton’s quality of work life questionnaire. Data were analyzed using the SPSS software. For statistical analysis T test and one way ANOVA were used. Results: The results of the study showed that 60% of nurses reported that they had moderate level of quality of working life while 37.1% and 2% had undesirable and good quality of working life, respectively. Nurses with associate degrees reported a better quality of working life than others. A significant relationship was found between variables such as education level, work experience, and type of hospital with quality of working life score (P < 0.05). No significant differences were observed between quality of working life score of nurses with employment status (P = 0.061), salary (P = 0.052), age, gender and marital status (P > 0.05). Conclusions: Nurses' quality of work life was at the moderate level. As quality of work life has an important impact on attracting and retaining employees, it is necessary to pay more attention to the nurses’ quality of work life and its affecting factors. PMID:25414904

Moradi, Tayebeh; Maghaminejad, Farzaneh; Azizi-Fini, Ismail

2014-01-01

180

Improved algorithms for integer programming and related lattice problems  

Microsoft Academic Search

The integer programming problem is: Given m×n and m×l matrices A and b respectively of integers, find whether, there exists an all integer n×l vector x satisfying the m inequalities A×?b. In settling an important open problem, Lenstra (1981) showed in an elegant way that when n, the number of dimensions is fixed, there is a polynomial-time algorithm to solve

Ravi Kannan

1983-01-01

181

Measuring health-related quality of life in men with osteoporosis or osteoporotic fracture  

PubMed Central

Background Osteoporosis is a serious health problem that worsens the quality of life and the survival rate of individuals with this disease on account the osteoporotic fractures. Studies have long focused on women, and its presence in men has been underestimated. While many studies conducted in different countries mainly assess health-related quality of life and identify fracture risks factors in women, few data are available on a Spanish male population. Methods/Design Observational study. Study population Men ? 40 years of age with/without diagnosed osteoporosis and with/without osteoporotic fracture included by their family doctor. Measurements The relationship between customary clinical risk factors for osteoporotic fracture and health-related quality of life in a Spanish male population. A telephone questionnaire on health-related quality of life is made. Statistical analysis The association between qualitative variables will be assessed by the Chi-square test. The distribution of quantitative variables by Student's t-test. If the conditions for using this test are not met, the non-parametric Mann-Whitney's U test will be used. The validation of the results obtained by the FRAX™ tool will be performed by way of the Hosmer-Lemeshow test and by calculating the area under the Receiver Operating Characteristic (ROC) curve (AUC). All tests will be performed with a confidence intervals set at 95%. Discussion The applicability and usefulness of Health-related quality of life (HRQOL) studies are well documented in many countries. These studies allow implementing cost-effective measures in cases of a given disease and reducing the costly consequences derived therefrom. This study attempts to provide objective data on how quality of life is affected by the clinical aspects involved in osteoporosis in a Spanish male population and can be useful as well in cost utility analyses conducted by health authorities. The sample selected is not based on a high fracture risk group. Rather, it is composed of men in the general population, and accordingly comparisons should not lead to erroneous interpretations. A possible bias correction will be ensured by checking reported fractures against healthcare reports and X-rays, or by consulting health care centers as applicable. PMID:21981790

2011-01-01

182

Symptoms and behavior problems of adolescents and adults with autism: effects of mother-child relationship quality, warmth, and praise.  

PubMed

Using a cross-lagged panel design, we investigated the impact of positive family processes on change in autism symptoms and behaviors. A sample of 149 co-residing mothers and their adolescent or adult child with autism was drawn from a large, longitudinal study. Maternal warmth and praise were measured using coded speech samples in which mothers talked about their son or daughter. A high level of relationship quality was associated with subsequent reductions in internalizing and externalizing problems as well as reductions in impairments in social reciprocity and repetitive behaviors. Maternal warmth and praise were also related to symptom abatement in the repetitive behaviors domain. PMID:18702558

Smith, Leann E; Greenberg, Jan S; Seltzer, Marsha Mailick; Hong, Jinkuk

2008-09-01

183

Singular perturbation analysis of AOTV-related trajectory optimization problems  

NASA Technical Reports Server (NTRS)

The problem of real time guidance and optimal control of Aeroassisted Orbit Transfer Vehicles (AOTV's) was addressed using singular perturbation theory as an underlying method of analysis. Trajectories were optimized with the objective of minimum energy expenditure in the atmospheric phase of the maneuver. Two major problem areas were addressed: optimal reentry, and synergetic plane change with aeroglide. For the reentry problem, several reduced order models were analyzed with the objective of optimal changes in heading with minimum energy loss. It was demonstrated that a further model order reduction to a single state model is possible through the application of singular perturbation theory. The optimal solution for the reduced problem defines an optimal altitude profile dependent on the current energy level of the vehicle. A separate boundary layer analysis is used to account for altitude and flight path angle dynamics, and to obtain lift and bank angle control solutions. By considering alternative approximations to solve the boundary layer problem, three guidance laws were derived, each having an analytic feedback form. The guidance laws were evaluated using a Maneuvering Reentry Research Vehicle model and all three laws were found to be near optimal. For the problem of synergetic plane change with aeroglide, a difficult terminal boundary layer control problem arises which to date is found to be analytically intractable. Thus a predictive/corrective solution was developed to satisfy the terminal constraints on altitude and flight path angle. A composite guidance solution was obtained by combining the optimal reentry solution with the predictive/corrective guidance method. Numerical comparisons with the corresponding optimal trajectory solutions show that the resulting performance is very close to optimal. An attempt was made to obtain numerically optimized trajectories for the case where heating rate is constrained. A first order state variable inequality constraint was imposed on the full order AOTV point mass equations of motion, using a simple aerodynamic heating rate model.

Calise, Anthony J.; Bae, Gyoung H.

1990-01-01

184

Body mass index, poor diet quality and health related quality of life are associated with mortality in rural older adults  

Technology Transfer Automated Retrieval System (TEKTRAN)

In an aging population, potentially modifiable factors impacting mortality such as diet quality, body mass index (BMI), and health-related quality of life (HRQOL) are of interest. Surviving members of the Geisinger Rural Aging Study (GRAS) (n = 5,993; aged =74 years) were contacted in the fall of 20...

185

Trends in groundwater quality in relation to groundwater age  

Microsoft Academic Search

Groundwater is a valuable natural resource and as such should be protected from chemical pollution. Because of the long travel times of pollutants through groundwater bodies, early detection of groundwater quality deterioration is necessary to efficiently protect groundwater bodies. The aim of this work was to develop and improve tools to detect trends in groundwater quality considering the reactive transport

Ate Visser

2009-01-01

186

Bobcat Home Range Size Relative to Habitat Quality  

Microsoft Academic Search

Bobcat (Lynx rufus) home range is generally considered to be a function of habitat quality, but there have been few published studies that explicitly address this idea. We used empirically developed bobcat habitat models to predict habitat quality within bobcat home ranges on 2 study areas in central Mississippi. We then assessed the relationship between home range size and habitat

L. Mike Conner; Joseph W. Jones; Michael J. Chamberlain; Bruce D. Leopold

2001-01-01

187

NUMERICAL MODELING OF WATER QUALITY AND SEDIMENT RELATED PROCESSES  

Technology Transfer Automated Retrieval System (TEKTRAN)

A three-dimensional water quality model was developed for simulating temporal and spatial variations of water quality with respect to phytoplankton, nutrients, and dissolved oxygen. Four major interacting systems were simulated, including phytoplankton dynamics, the nitrogen and phosphorus cycles, a...

188

Current trends in illegal drug use and drug related health problems in Switzerland  

Microsoft Academic Search

Background and method: As part of the evalua- tion of the Confederation's measures to reduce drug related problems, a review of available data on drug use and drug related problems in Switzer- land has been conducted. Source of data included: population surveys (adults and teenagers), surveys among drug users, health statistics (drug related and AIDS related deaths, HIV case reporting,

Elisabeth De Preux; Françoise Dubois-Arber; Frank Zobel

189

Intelligence-policy relations and the problem of politicization  

E-print Network

A growing literature in international relations theory explores how domestic institutions filter and mediate international signals. The study of intelligence-policy relations fits naturally into this mold, because intelligence ...

Rovner, Joshua Randall

2008-01-01

190

Depression and Health Related Quality of Life in Adolescent Survivors of a Traumatic Brain Injury: A Pilot Study  

PubMed Central

Traumatic brain injury is (TBI) a leading cause of morbidity and mortality in youth. Adult survivors of a severe pediatric TBI are vulnerable to global impairments, including greater employment difficulties, poor quality of life (HRQoL) and increased risk of mental health problems. When estimating the health related quality of life in adolescents, the presence of anxiety and depression and the quality of social relationships are important considerations, because adolescents are entrenched in social development during this phase of maturation. The influence of anxiety, depression and loneliness on health related quality of life in adolescent survivors of TBI has not been documented. This pilot study aimed to identify and measure the relationship between anxiety, depression and loneliness and perceived health related quality of life in adolescent survivors of a TBI. Method: mixed method/cohort pilot study (11 adolescents, mild to severe TBI; 9 parents), using self-report and proxy-report measures of anxiety, depression, health related quality of life, loneliness and clinical psychiatric interviews (adolescent only). Results: Self-reported depression was significantly correlated with self-reported HRQoL (rs [11]?=??0.88, p<0.001). Age at injury was significantly correlated with self-reported HRQoL (rs [11]?=??0.68, p?=?0.02). Self-reported depression predicted self-reported HRQoL (R2?=?0.79, F [1, 10]?=?33.48, p<0.001), but age at injury did not (R2?=?0.19, F [1, 10]?=?2.09, p?=?0.18). Conclusions: Our results suggest that depression is a predictor of health related quality of life in youth post-TBI. The possibility of using targeted assessment and therapy for depression post-TBI to improve health related quality of life should be explored. PMID:25010719

Di Battista, Ashley; Godfrey, Celia; Soo, Cheryl; Catroppa, Cathy; Anderson, Vicki

2014-01-01

191

Efficient parallel algorithms for string editing and related problems  

NASA Technical Reports Server (NTRS)

The string editing problem for input strings x and y consists of transforming x into y by performing a series of weighted edit operations on x of overall minimum cost. An edit operation on x can be the deletion of a symbol from x, the insertion of a symbol in x or the substitution of a symbol x with another symbol. This problem has a well known O((absolute value of x)(absolute value of y)) time sequential solution (25). The efficient Program Requirements Analysis Methods (PRAM) parallel algorithms for the string editing problem are given. If m = ((absolute value of x),(absolute value of y)) and n = max((absolute value of x),(absolute value of y)), then the CREW bound is O (log m log n) time with O (mn/log m) processors. In all algorithms, space is O (mn).

Apostolico, Alberto; Atallah, Mikhail J.; Larmore, Lawrence; Mcfaddin, H. S.

1988-01-01

192

The internationalization of industrial relations in Europe: Prospects and problems  

Microsoft Academic Search

European industrial relations are rapidly internationalizing; internationalization, however, is not necessarily de-nationalization. Even as European integration accelerates, national politics and industrial relations will remain the principal arenas for the social regulation of work and employment in Europe. The paper investigates the implications of European industrial relations developing into a multi-level system within which national regimes compete with each other in

Wolfgang Streeck; GILLES BOUSQUET; KEITH COHEN; CATHERINE CONNOR; COLLEEN DUNLAVY; ANDREAS KAZAMIAS; LEON LINDBERG; ELAINE MARKS; ANNE MINER; ROBERT OSTERGREN; MARK POLLACK; GREGORY SHAFFER; MARC SILBERMAN; JONATHAN ZEITLIN

1998-01-01

193

Problems Related to Computer Ethics: Origins of the Problems and Suggested Solutions  

ERIC Educational Resources Information Center

Increasing use of information and communication technologies (ICTs) help individuals to solve several everyday problems, which used to be harder, more complicated and time consuming. Even though ICTs provide individuals with many advantages, they might also serve as grounds for several societal and ethical problems which vary in accordance with…

Kuzu, Abdullah

2009-01-01

194

A profile of neuropsychiatric problems and their relationship to quality of life for Parkinson's disease patients without dementia  

Microsoft Academic Search

Neuropsychiatric problems are common in Parkinson's disease (PD) but there is little information regarding how they impact on quality of life. PD patients without dementia (49) were assessed for low mood\\/depression, fatigue, apathy, sleep problems and hallucinations. Measures of quality of life and motor function were also obtained. Over 77% of the patients reported symptoms consistent with one or more

A. McKinlay; R. C. Grace; J. C. Dalrymple-Alford; T. Anderson; J. Fink; D. Roger

2008-01-01

195

Assessment of the quality of measures of child oral health-related quality of life  

PubMed Central

Background Several measures of oral health-related quality of life have been developed for children. The most frequently used are the Child Perceptions Questionnaire (CPQ), the Child Oral Impacts on Daily Performances (C-OIDP) and the Child Oral Health Impact Profile (COHIP). The aim of this study was to assess the methodological quality of the development and testing of these three measures. Methods A systematic search strategy was used to identify eligible studies published up to December 2012, using both MEDLINE and Web of Science. Titles and abstracts were read independently by two investigators and full papers retrieved where the inclusion criteria were met. Data were extracted by two teams of two investigators using a piloted protocol. The data were used to describe the development of the measures and their use against existing criteria. The methodological quality and measurement properties of the measures were assessed using standards proposed by the Consensus-based Standards for the Selection of Health Measurement Instruments (COSMIN) group. Results The search strategy yielded 653 papers, of which 417 were duplicates. Following analysis of the abstracts, 119 papers met the inclusion criteria. The majority of papers reported cross-sectional studies (n?=?117) with three of longitudinal design. Fifteen studies which had used the original version of the measures in their original language were included in the COSMIN analysis. The most frequently used measure was the CPQ. Reliability and construct validity appear to be adequate for all three measures. Children were not fully involved in item generation which may compromise their content validity. Internal consistency was measured using classic test theory with no evidence of modern psychometric techniques being used to test unidimensionality of the measures included in the COSMIN analysis. Conclusion The three measures evaluated appear to be able to discriminate between groups. CPQ has been most widely tested and several versions are available. COHIP employed a rigorous development strategy but has been tested in fewer populations. C-OIDP is shorter and has been used successfully in epidemiological studies. Further testing using modern psychometric techniques such as item response theory is recommended. Future developments should also focus on the development of measures which can evaluate longitudinal change. PMID:24758535

2014-01-01

196

Stressors, Quality of the Child-Caregiver Relationship, and Children's Mental Health Problems After Parental Death: The Mediating Role of Self-System Beliefs  

ERIC Educational Resources Information Center

Investigated whether three self-system beliefs, fear of abandonment, coping efficacy, and self-esteem, mediated the relations of stressors and caregiver-child relationship quality with concurrent and prospective internalizing and externalizing problems in a sample of children who had experienced parental death in the previous 2.5 years. The…

Wolchik, Sharlene A.; Tein, Jenn-Yun; Sandler, Irwin N.; Ayers, Tim S.

2006-01-01

197

FISHES IN THEIR RELATION TO THE MOSQUITO PROBLEM By William P. Seal  

E-print Network

FISHES IN THEIR RELATION TO THE MOSQUITO PROBLEM oJ'- By William P. Seal .:I- Paper presentedbefore page retained for pagination #12;FISHES IN THEIR RELAT~ON TO THE MOSQUITO PROBLEM. .:A By WILLIAM P. SEAL· .:A Some phases of the mosquito problem are extremely simple and easy of solution

198

The evolving role of physician organizations in quality related activities  

PubMed Central

As the fields of quality assessment and improvement become integral parts of medical practice, the roles of National Medical Associations, and other physician organizations in these endeavors have undergone major changes in scope and intensity as well. The survey based report in this journal by Levi et al. suggests some major overall trends but also notes wide variation from country to country. In this commentary, we touch on some likely reasons for the variation seen in the focus of physician organization participation in quality activities, and offer some suggestions for why expanded involvement by physician organizations may be critical to quality efforts going forward. PMID:24959345

2014-01-01

199

Health- related quality of life in diabetic people with different vascular risk  

PubMed Central

Background The number of papers on the health related quality of life of patients with DM has grown in recent years but fewer studies have drawn comparisons between diabetic persons and the general population considering different risk groups. The aim of this study is to examine health related quality of life (HRQOL) in people with diabetes mellitus (DM) and to analyze the differences in HRQOL adjusting by vascular risk. Methods The data used in this analysis was obtained from the responses of 15,926 individuals who participated in the 2006 Catalonia Health Survey. Our analysis provides a number of multivariate statistical models designed for studying HRQOL, based on the EQ-5D questionnaire, controlling for demographic factors of survey participants and variables that identify diagnosed illnesses and health problems. Results Our findings suggest there is a significant, moderate negative relationship between DM and HRQOL in comparison with non diabetic people (absolute value of the coefficient ranges between ?0.04 and ?0.054 points on a scale of 1). A further analysis of subgroups reveals that diabetics who have not had vascular risk factors neither vascular diseases do not have a diminished HRQOL when compared to the non-diabetic population in general, when other factors are controlled for. In contrast, a comparison of diabetics and non-diabetics who exhibit vascular disease or risk factors for vascular disease reveals HRQOL is significantly diminished to a greater extent for those with diabetes (between 0.152 and 0.175 points loss when comparing a non-diabetic person with a diabetic with vascular disease). Also, HRQOL in diabetic patients who have additional risk factors or a vascular disease are lower than people non-diabetic who have additional risk factors or a vascular disease. When we focus our analysis to the EQ-5D dimensions, we observe that diabetic persons who are neither at risk for nor have a diagnosed vascular disease are no more likely than non-diabetics to report problems. However, diabetic patients who have additional risk factors for vascular disease or a diagnosed vascular disease are significantly more likely to report moderated or severe problems in 4 of the 5 dimensions of EQ-5D. Conclusions The HRQOL of a person who has diabetes is not necessarily lower than for a non-diabetic. Control of risk factors associated to vascular diseases is a key factor for an enhanced quality of life. Vascular disease or risk factors for vascular disease, on the other hand, are associated with a significantly diminished quality of life for diabetic persons. PMID:22994940

2012-01-01

200

The global existence problem and cosmic censorship in general relativity  

Microsoft Academic Search

We formulate two global existence conjectures for the Einstein equations and discuss their relevance to the cosmic censorship conjecture. We argue that the reformulation of the cosmic censorship conjecture as a global existence problem renders it more amenable to direct analytical attack. To demonstrate the facilty of this approach we prove the cosmological version of our global existence conjecture for

Vincent Moncrief; Douglas M. Eardley

1981-01-01

201

Income Inequality, Alcohol Use, and Alcohol-Related Problems  

PubMed Central

Objectives. We examined the relationship between state-level income inequality and alcohol outcomes and sought to determine whether associations of inequality with alcohol consumption and problems would be more evident with between-race inequality measures than with the Gini coefficient. We also sought to determine whether inequality would be most detrimental for disadvantaged individuals. Methods. Data from 2 nationally representative samples of adults (n?=?13?997) from the 2000 and 2005 National Alcohol Surveys were merged with state-level inequality and neighborhood disadvantage indicators from the 2000 US Census. We measured income inequality using the Gini coefficient and between-race poverty ratios (Black–White and Hispanic–White). Multilevel models accounted for clustering of respondents within states. Results. Inequality measured by poverty ratios was positively associated with light and heavy drinking. Associations between poverty ratios and alcohol problems were strongest for Blacks and Hispanics compared with Whites. Household poverty did not moderate associations with income inequality. Conclusions. Poverty ratios were associated with alcohol use and problems, whereas overall income inequality was not. Higher levels of alcohol problems in high-inequality states may be partly due to social context. PMID:23237183

C.?M. Roberts, Sarah; Bond, Jason

2013-01-01

202

Knives, Guns, and Interparent Violence: Relations With Child Behavior Problems  

Microsoft Academic Search

Behavior problems were examined across 3 groups of children (8–12 years of age), living in families characterized by recent physical spousal violence. The groups were (a) 47 children who reported observing marital violence that included the threat or use of knives or guns (observed); (b) 57 children who did not report witnessing marital violence involving knives or guns but whose

Ernest N. Jouriles; Renee McDonald; William D. Norwood; Holly Shinn Ware; Laura Collazos Spiller; Paul R. Swank

1998-01-01

203

Preventing Alcohol-Related Problems on Campus: Vandalism.  

ERIC Educational Resources Information Center

This bulletin provides suggestions for the components of a comprehensive approach to reducing student vandalism on college and university campuses. Numerous facets of the problem are addressed, including: the association of binge drinking with vandalism and school policies that tolerate or even facilitate binge drinking; a school's drinking…

Epstein, Joel; Finn, Peter

204

A comparison of optimization software for mesh shape-quality improvement problems.  

SciTech Connect

Simplicial mesh shape-quality can be improved by optimizing an objective function based on tetrahedral shape measures. If the objective function is formulated in terms of all elements in a given mesh rather than a local patch, one is confronted with a large-scale, nonlinear, constrained numerical optimization problem. We investigate the use of six general-purpose state-of-the-art solvers and two custom-developed methods to solve the resulting large-scale problem. The performance of each method is evaluated in terms of robustness, time to solution, convergence properties, and scalability on several two- and three-dimensional test cases.

Freitag, L.; Knupp, P.; Munson, T.; Shontz, S.

2002-08-19

205

The determinants of health-related quality of life in urban and rural isi-Xhosa-speaking people with disabilities.  

PubMed

This study aimed to establish the determinants of health-related quality of life in a rural and an urban sample of Xhosa-speaking people with disability. The sample was a convenience sample and was identified through a 'snowballing' process initiated by enumerators who were all members of Disabled People South Africa. The Xhosa version of the EQ-5D was utilized and the visual analogue scale which ranges from 0 (worst imaginable health state) to 100 (best imaginable health state) was used as the dependent measure. The sample consisted of 244 rural and 61 urban respondents, demonstrating a preponderance of physical disabilities. The urban sample reported more problems in each of the descriptor domains. The visual analogue scale score showed a bimodal distribution. The results of the multiple regression analysis indicated that the presence of pain detracted most from health-related quality of life (-20%), followed by anxiety and depression (-10%), and difficulty with performance of usual activities (-10%). Rural participants, with the same impairment level, reported 8% poorer health-related quality of life. The mean visual analogue scale scores were low (in the 60s), and would indicate that the majority of people living with disability do not necessarily adapt to their functional limitations and continue to experience diminished health-related quality of life. The bimodal distribution, however, did indicate that some respondents enjoyed good health-related quality of life. There is a need to manage symptoms, particularly pain and depression, as these have a severe negative impact on health-related quality of life. The rural setting seemed to contribute to a worse perceived health-related quality of life. This effect needs to be factored in when evaluating programmes. PMID:17473623

Jelsma, Jennifer; Maart, Soraya; Eide, Arne; Ka'Toni, Mzolisi; Loeb, Mitch

2007-06-01

206

Health related quality of life assessment in the routine clinical practice of a dermatology unit.  

PubMed

A descriptive study in a Dermatological Research Institution in Rome, Italy, was conducted to test the feasibility and acceptability of health related quality of life (HRQoL) assessment in the daily routine. Quality of life, and psychosocial distress evaluations were obtained for each patient. Patients were invited to complete the Skindex-29, GHQ-12, and SF-36. Results were returned to the clinical staff using standardised feed-back forms with: a) "categories" of QoL scores to help interpreting Skindex-29 scores; b) "warnings" pointing out problems that patients experienced "all the time"; c) categories of GHQ-12 scores for minor psychiatric problems; d) the classical SF-36 graph depicting the patient's "QoL profile" with normative references. The clinical staff were trained, and then their attitudes and behaviours were surveyed using a standardised questionnaire. For all 170 participants enrolled (63% males, 35% age > 64 years), feed-back forms were provided within three hours from data collection. For patients with repeated hospitalisations time-trends in HRQoL measurements were also provided. The acceptability, both for patients and the clinical staff, was high but the actual impact on clinical activities was limited. The routine assessment of HRQoL in dermatology is feasible and well accepted both by patients and by the clinical staff. The application of these widely used questionnaires should be implemented in a larger scale and evaluated in different settings. PMID:16935800

Tabolli, Stefano; Baliva, Giannandrea; Lombardo, Giuseppe Alfonso; Sampogna, Francesca; Di Pietro, Cristina; Mannooranparampil, T J; Alvetreti, Gabriele; Abeni, Damiano

2006-01-01

207

Child Health-Related Quality of Life and Parental Social Capital in Greece: An Exploratory Study  

ERIC Educational Resources Information Center

In this paper, we examined dimensions of child health-related quality of life in Greece in relation to parental assessments of neighbourhood social capital and social support networks. For the analysis, two main measures were used: (1) child self-reported health-related quality of life in ten dimensions, as measured by the KIDSCREEN questionnaire;…

El-Dardiry, Giulia; Dimitrakaki, Christine; Tzavara, Chara; Ravens-Sieberer, Ulrike; Tountas, Yannis

2012-01-01

208

Postadmission sepsis as a screen for quality problems: a case-control study.  

PubMed

The present on admission (POA) indicator used with diagnosis codes listed in hospital discharge abstracts makes it possible to screen for possible in-hospital complications, which may in turn point to quality of care problems. A case-control study was performed among 382 patients from 30 New York State hospitals to see if lapses in quality were associated with the development of postadmission sepsis. Cases with hospital-acquired sepsis (labeled not POA) were compared with matched controls without sepsis. The authors found that central venous catheters and emergently inserted peripheral intravenous catheters were associated with subsequent development of sepsis. Urethral catheters were associated with sepsis for medical patients but not for surgical patients. Adherence to several process of care guidelines was incomplete but none occurred statistically significantly more frequently among sepsis cases than controls. Using discharge abstract diagnosis codes to determine the presence of postadmission complications shows promise for identifying areas for quality improvement. PMID:24226649

Hughes, John S; Eisenhandler, Jon; Goldfield, Norbert; Weinberg, Patti G; Averill, Richard

2014-01-01

209

Workers' Education in Industrialised Countries and Its Specific Problems in Relation to Development.  

ERIC Educational Resources Information Center

Examines several problems that need to be addressed concerning world crisis: war, poverty, unemployment, overpopulation, environmental issues, and housing; developed versus developing countries; and social justice. The task for workers' education in relation to these problems is discussed. (CT)

Labour Education, 1986

1986-01-01

210

Health-Related Quality of Life in Children with High-Functioning Autism  

ERIC Educational Resources Information Center

The health-related quality of life of school-aged children with high-functioning autism is poorly understood. The objectives of this study were to compare the health-related quality of life of children with high-functioning autism to that of typically developing peers and to compare child-self and parent-proxy reports of health-related quality of…

Potvin, Marie-Christine; Snider, Laurie; Prelock, Patricia A.; Wood-Dauphinee, Sharon; Kehayia, Eva

2015-01-01

211

Health-related quality of life in patients with pulmonary arterial hypertension  

Microsoft Academic Search

BACKGROUND: Improved outcomes with expanding treatment options for patients with pulmonary arterial hypertension present the opportunity to consider additional end-points in approaching therapy, including factors that influence health-related quality of life. However, comparatively little is known about health-related quality of life and its determinants in patients with pulmonary arterial hypertension. METHODS: Health-related quality of life was evaluated in a cross

Darren B Taichman; Jennifer Shin; Laryssa Hud; Christine Archer-Chicko; Sandra Kaplan; Jeffery S Sager; Robert Gallop; Jason Christie; John Hansen-Flaschen; Harold Palevsky

2005-01-01

212

The Problem of Colliding Networks and its Relation to Cancer  

E-print Network

Complex systems, ranging from living cells to human societies, can be represented as attractor networks, whose basic property is to exist in one of allowed states, or attractors. We noted that merging two systems that are in distinct attractors creates uncertainty, as the hybrid system cannot assume two attractors at once. As a prototype of this problem, we explore cell fusion, whose ability to combine distinct cells into hybrids was proposed to cause cancer. By simulating cell types as attractors, we find that hybrids are prone to assume spurious attractors, which are emergent and sporadic states of networks, and propose that cell fusion can make a cell cancerous by placing it into normally inaccessible spurious states. We define basic features of hybrid networks and suggest that the problem of colliding networks has general significance in processes represented by attractor networks, including biological, social, and political phenomena.

Koulakov, Alexei A

2012-01-01

213

Progress on PRONGHORN Application to NGNP Related Problems  

SciTech Connect

We are developing a multiphysics simulation tool for Very High-Temperature gascooled Reactors (VHTR). The simulation tool, PRONGHORN, takes advantages of the Multiphysics Object-Oriented Simulation library, and is capable of solving multidimensional thermal-fluid and neutronics problems implicitly in parallel. Expensive Jacobian matrix formation is alleviated by the Jacobian-free Newton-Krylov method, and physics-based preconditioning is applied to improve the convergence. The initial development of PRONGHORN has been focused on the pebble bed corec concept. However, extensions required to simulate prismatic cores are underway. In this progress report we highlight progress on application of PRONGHORN to PBMR400 benchmark problems, extension and application of PRONGHORN to prismatic core reactors, and progress on simulations of 3-D transients.

Dana A. Knoll

2009-08-01

214

The Problem of Colliding Networks and its Relation to Cancer  

E-print Network

Complex systems, ranging from living cells to human societies, can be represented as attractor networks, whose basic property is to exist in one of allowed states, or attractors. We noted that merging two systems that are in distinct attractors creates uncertainty, as the hybrid system cannot assume two attractors at once. As a prototype of this problem, we explore cell fusion, whose ability to combine distinct cells into hybrids was proposed to cause cancer. By simulating cell types as attractors, we find that hybrids are prone to assume spurious attractors, which are emergent and sporadic states of networks, and propose that cell fusion can make a cell cancerous by placing it into normally inaccessible spurious states. We define basic features of hybrid networks and suggest that the problem of colliding networks has general significance in processes represented by attractor networks, including biological, social, and political phenomena.

Alexei A. Koulakov; Yuri Lazebnik

2012-01-13

215

Skin Problems: How to Protect Yourself from Job-Related Skin Problems  

MedlinePLUS

... workplace to provide a Material Safety Data Sheet (MSDS) for each chemical. The MSDS will describe any known risk for skin irritation, ... or skin cancer. Be sure to read each MSDS your company provides. Skin Problems Irritation and Rashes. ...

216

Image recovery via total variation minimization and related problems  

Microsoft Academic Search

Summary.  We study here a classical image denoising technique introduced by L. Rudin and S. Osher a few years ago, namely the constrained\\u000a minimization of the total variation (TV) of the image. First, we give results of existence and uniqueness and prove the link\\u000a between the constrained minimization problem and the minimization of an associated Lagrangian functional. Then we describe\\u000a a

Antonin Chambolle; Pierre-Louis Lions

1997-01-01

217

[Quality improvement in primary care. Financial incentives related to quality indicators in Europe].  

PubMed

Quality improvement in primary care has been an important issue worldwide for decades. Quality indicators are increasingly used quantitative tools for quality measurement. One of the possible motivational methods for doctors to provide better medical care is the implementation of financial incentives, however, there is no sufficient evidence to support or contradict their effect in quality improvement. Quality indicators and financial incentives are used in the primary care in more and more European countries. The authors provide a brief update on the primary care quality indicator systems of the United Kingdom, Hungary and other European countries, where financial incentives and quality indicators were introduced. There are eight countries where quality indicators linked to financial incentives are used which can influence the finances/salary of family physicians with a bonus of 1-25%. Reliable data are essential for quality indicators, although such data are lacking in primary care of most countries. Further, improvement of indicator systems should be based on broad professional consensus. PMID:23835354

Kolozsvári, László Róbert; Rurik, Imre

2013-07-14

218

Problems of Terminology in the Teaching of Plant Water Relations  

ERIC Educational Resources Information Center

Recommends use by teachers of new terminology regarding plant water relations. Includes definitions and Greek symbols for the following terms: water potential, water potential of cell, osmotic potential, matric potential, and pressure potential. (CS)

Bradbeer, Philip A.; And Others

1976-01-01

219

Eco-innovative design approach: Integrating quality and environmental aspects in prioritizing and solving engineering problems  

NASA Astrophysics Data System (ADS)

This study proposes an eco-innovative design process taking into consideration quality and environmental aspects in prioritizing and solving technical engineering problems. This approach provides a synergy between the Life Cycle Assessment (LCA), the nonquality matrix, the Theory of Inventive Problem Solving (TRIZ), morphological analysis and the Analytical Hierarchy Process (AHP). In the sequence of these tools, LCA assesses the environmental impacts generated by the system. Then, for a better consideration of environmental aspects, a new tool is developed, the non-quality matrix, which defines the problem to be solved first from an environmental point of view. The TRIZ method allows the generation of new concepts and contradiction resolution. Then, the morphological analysis offers the possibility of extending the search space of solutions in a design problem in a systematic way. Finally, the AHP identifies the promising solution(s) by providing a clear logic for the choice made. Their usefulness has been demonstrated through their application to a case study involving a centrifugal spreader with spinning discs.

Chakroun, Mahmoud; Gogu, Grigore; Pacaud, Thomas; Thirion, François

2014-09-01

220

Health-related quality of life and income-related social mobility in young adults  

PubMed Central

Background To assess the association of income-related social mobility between the age of 13 and 30 years on health-related quality of life among young adults. Methods In 1988-89 n?=?7,673 South Australian school children aged 13 years were sampled with n?=?4,604 children (60.0%) and n?=?4,476 parents (58.3%) returning questionnaires. In 2005-06 n?=?632 baseline study participants responded (43.0% of those traced and living in Adelaide). Results Multivariate regressions adjusting for sex, tooth brushing and smoking status at age 30 showed that compared to upwardly mobile persons social disadvantage was associated (p?related socioeconomic disadvantage was associated with more oral health impact, and lower health state and life satisfaction, while being downwardly mobile was associated with lower life satisfaction at age 30 years. Persons who were upwardly mobile were similar in health outcomes to stable advantaged persons. PMID:24735954

2014-01-01

221

[Development of Chinese herbal pieces and analysis of problems of total quality management].  

PubMed

Chinese herbal pieces are a key factor to protecting the quality of the clinical efficacy of traditional Chinese medicine (TCM), and it is one of the basic elements of ensuring the quality of TCM and people's usage safety. However, Chinese herbal pieces has massive problem such as adulteration and counterfeit, dyeing and weighting, pesticide residues, heavy metals in excess of the standards, and all the issues are repeated excessive in the clinic treatment. These issues impacted sound development of production, management and use of TCM, but also brings common people hidden trouble for the clinical safety of medication. Protect and improve the quality of the Chinese herbal pieces demand that continue improve quality system, in-depth scientific research, and strengthen self-discipline and other factors. So it is fundamentally to ensure good quality of Chinese herbal pieces with the color, taste and shape by systematic supervision to it from the source, production, management and research, with strengthened implementation and en- forcement of the "3G". PMID:25850288

Wang, Jie; Qiao, Xi-yao; Lin, Fei; Chen, Yin-feng

2014-11-01

222

Closed orbit related problems: Correction, feedback, and analysis  

SciTech Connect

Orbit correction - moving the orbit to a desired orbit, orbit stability - keeping the orbit on the desired orbit using feedback to filter out unwanted noise, and orbit analysis - to learn more about the model of the machine, are strongly interrelated. They are the three facets of the same problem. The better one knows the model of the machine, the better the predictions that can be made on the behavior of the machine (inverse modeling) and the more accurately one can control the machine. On the other hand, one of the tools to learn more about the machine (modeling) is to study and analyze the orbit response to {open_quotes}kicks.{close_quotes}

Bozoki, E.S.

1995-02-01

223

The role of best management practices in alleviating water quality problems associated with diffuse pollution  

Microsoft Academic Search

This paper introduces the concept of best management practices for the control of diffuse pollution. It considers where they are appropriate, and how the concept of a best management practice approach differs from the conventional means of controlling pollution by regulating each point source, in relation to established environmental quality standards and available dilution.

B. D'Arcy; A. Frost

2001-01-01

224

Inverse spin glass and related maximum entropy problems.  

PubMed

If we have a system of binary variables and we measure the pairwise correlations among these variables, then the least structured or maximum entropy model for their joint distribution is an Ising model with pairwise interactions among the spins. Here we consider inhomogeneous systems in which we constrain, for example, not the full matrix of correlations, but only the distribution from which these correlations are drawn. In this sense, what we have constructed is an inverse spin glass: rather than choosing coupling constants at random from a distribution and calculating correlations, we choose the correlations from a distribution and infer the coupling constants. We argue that such models generate a block structure in the space of couplings, which provides an explicit solution of the inverse problem. This allows us to generate a phase diagram in the space of (measurable) moments of the distribution of correlations. We expect that these ideas will be most useful in building models for systems that are nonequilibrium statistical mechanics problems, such as networks of real neurons. PMID:25260004

Castellana, Michele; Bialek, William

2014-09-12

225

Inverse Spin Glass and Related Maximum Entropy Problems  

NASA Astrophysics Data System (ADS)

If we have a system of binary variables and we measure the pairwise correlations among these variables, then the least structured or maximum entropy model for their joint distribution is an Ising model with pairwise interactions among the spins. Here we consider inhomogeneous systems in which we constrain, for example, not the full matrix of correlations, but only the distribution from which these correlations are drawn. In this sense, what we have constructed is an inverse spin glass: rather than choosing coupling constants at random from a distribution and calculating correlations, we choose the correlations from a distribution and infer the coupling constants. We argue that such models generate a block structure in the space of couplings, which provides an explicit solution of the inverse problem. This allows us to generate a phase diagram in the space of (measurable) moments of the distribution of correlations. We expect that these ideas will be most useful in building models for systems that are nonequilibrium statistical mechanics problems, such as networks of real neurons.

Castellana, Michele; Bialek, William

2014-09-01

226

Rationality Problems of the Principles of Equivalence and General Relativity  

E-print Network

It is pointed out that at present we only prove that inertial static mass and gravitational static mass are equivalent. We have not proved that inertial moving mass and gravitational moving mass are also equivalent. It is proved by the dynamic effect of special relativity that inertial moving mass and gravitational moving mass are not equivalent. Besides, it can be proved that the principle of general relativity is untenable. It is only an apparent felling of mankind actually. Therefore, there exists serious defect in the foundation of the Einsteins theory of gravitation. We need to renovate our basic idea of space-time and gravity.

Mei Xiaochun

2006-09-06

227

Rationality Problems of the Principles of Equivalence and General Relativity  

E-print Network

It is pointed out that at present we only prove that inertial static mass and gravitational static mass are equivalent. We have not proved that inertial moving mass and gravitational moving mass are also equivalent. It is proved by the dynamic effect of special relativity that inertial moving mass and gravitational moving mass are not equivalent. Besides, it can be proved that the principle of general relativity is untenable. It is only an apparent felling of mankind actually. Therefore, there exists serious defect in the foundation of the Einsteins theory of gravitation. We need to renovate our basic idea of space-time and gravity.

Xiaochun, M

2006-01-01

228

Cardiac rehabilitation programs and health-related quality of life. State of the art.  

PubMed

Cardiovascular disease is the main health problem in developed countries. Prevention is presented as the most effective and efficient primary care intervention, whereas cardiac rehabilitation programs are considered the most effective of secondary prevention interventions; however, these are underused. This literature review examines the effectiveness and the levels of evidence of cardiac rehabilitation programs, their components, their development and role in developed countries, applications in different fields of research and treatment, including their psychological aspects, and their application in heart failure as a paradigm of disease care under this type of intervention. It is completed by a review of the impact of such programs on measures of health-related quality of life, describing the instruments involved in studies in recent scientific literature. PMID:22015019

Cano de la Cuerda, Roberto; Alguacil Diego, Isabel María; Alonso Martín, Joaquín Jesús; Molero Sánchez, Alberto; Miangolarra Page, Juan Carlos

2012-01-01

229

Health-related quality of life in Swedish pediatric burn patients and associations with burn and family characteristics.  

PubMed

Although many children with burns recover well and have a satisfying quality of life after the burn, some children do not adjust as well. Health-related quality of life (HRQoL) focuses on the impact health status has on quality of life. The aim of this study was to assess HRQoL with the American Burn Association/Shriners Hospitals for Children Burn Outcomes Questionnaire (BOQ) in a nationwide Swedish sample of children with burns 0.3-9.0 years after injury. Participants were parents (n=109) of children aged up to 18 years at the time of investigation who were treated at the Linköping or Uppsala Burn Center between 2000 and 2008. The majority of children did not have limitations in physical function and they did not seem to experience much pain. However, there were indications of psychosocial problems. Parents of preschool children reported most problems with the children's behavior and family disruption, whereas parents of children aged 5-18 years reported most problems with appearance and emotional health. There were mainly burn-related variables associated with suboptimal HRQoL in children aged 5-18 years, while family-related variables did not contribute as much. PMID:24290162

Sveen, J; Sjöberg, F; Öster, C

2014-08-01

230

A note on static spaces and related problems  

NASA Astrophysics Data System (ADS)

In this paper we study static spaces introduced in Hawking and Ellis (1975) [1], Fischer and Marsden (1975) [3] and Riemannian manifolds possessing solutions to the critical point equation introduced in Besse (1987) [11], Hwang (2000) [12]. In both cases, on the manifolds there is a function satisfying a particular Ricci-Hessian type equation (1.6). With an idea similar to that used in Cao et al. (2012) [15,16], we have made progress in solving the problem raised in Fischer and Marsden (1975) [3] of classifying vacuum static spaces and in proving the conjecture proposed in Besse (1987) [11] concerning manifolds admitting solutions to the critical point equation in general dimensions. We obtain even stronger results in dimension 3.

Qing, Jie; Yuan, Wei

2013-12-01

231

Symplectic structures related with higher order variational problems  

E-print Network

In this paper we derive the symplectic framework for field theories defined by higher-order Lagrangians. The construction is based on the symplectic reduction of suitable spaces of iterated jets. The possibility of reducing a higher-order system of PDEs to a constrained first-order one, the symplectic structures naturally arising in the dynamics of a first-order Lagrangian theory, and the importance of the Poincar\\'e-Cartan form for variational problems, are all well-established facts. However, their adequate combination corresponding to higher-order theories is missing in the literature. Here we obtain a consistent and truly finite-dimensional canonical formalism, as well as a higher-order version of the Poincar\\'e-Cartan form. In our exposition, the rigorous global proofs of the main results are always accompanied by their local coordinate descriptions, indispensable to work out practical examples.

Jerzy Kijowski; Giovanni Moreno

2014-08-15

232

The spallation neutron source SINQ and related dosimetry problems  

SciTech Connect

The spallation neutron source SINQ, presently under construction at Switzerland`s Paul Scherrer Institut, will handle the highest proton current of any comparable facility in the world: a continuous beam of 1.5 mA, 590 MeV protons from an isochronous ring cyclotron. For the users, SINQ as a neutron source should resemble closely a medium flux research reactor; the presence of high and medium energy particles creates new technical problems in design and operation. The engineering design for the major components is based on the results of neutronic calculations, using a code package built around the HETC program. At present, opportunities to verify the theoretical calculations experimentally are very limited. Safety factors have to be built in which conflict with the optimization of SINQ as a neutron source. To benchmark the calculational methods, a wide ranging diagnostic system will be required.

Janett, A.; Atchison, F.; Bauer, G.S. [Paul Scherrer Inst., Villigen PSI (Switzerland)

1994-12-31

233

Investigation of the Problem of Singularities in General Relativity  

NASA Astrophysics Data System (ADS)

Recently Addy and Datta have obtained a linearized solution for isentropic motions of a perfect fluid by assigning Cauchy data on the hypersurface x 4=0 and by imposing a restriction on the equation of state. In the present paper we pursue this study and discuss the problem of singularities from the standpoint of a local observer for which a singularity is defined as a state with an infinite proper rest mass density. It is shown that for a closed universe with any distribution of matter whatsoever there occurred a singularity in the past in the nonrotating parts of the universe and it must recur in the future. Furthermore, the collapse of a rotating fluid to a singularity seems inevitable when the relativistic equation of state is considered.

Basu, Uma; Addy, Indira; Datta, Bidyut Kumar

1980-09-01

234

Problems related to alcohol use: a cross-cultural perspective.  

PubMed

The assessment, diagnosis, and classification of mental disorders are embedded in social and cultural norms. In view of their Anglo-Saxon origins, the prevailing diagnostic criteria and instruments for their assessment have a strong Western influence. Yet they are used internationally with the implied assumption of their cross-cultural applicability. The WHO Cross-Cultural Applicability Research (CAR) study was designed to test this assumption as it applies to disorders relating to the use of alcohol and drugs. This multi-disciplinary research project was conducted in nine countries having different patterns of alcohol and drug use. The results suggest that, even though some similarities exist with respect to the definition of problematic use of alcohol in these ethnically diverse societies, very substantial differences also exist. A number of core concepts underpinning diagnosis of disorders relating to the use of alcohol have no equivalence in the local languages of the various cultures, while some others lacked cultural applicability because of their relative 'distance' from cultural and ethnic norms of drinking. This distance often relates to the difficulties of adapting descriptors of drinking norms in a 'wet' culture to one that is decidedly 'dry'. PMID:9248678

Gureje, O; Mavreas, V; Vazquez-Barquero, J L; Janca, A

1997-06-01

235

Firework-related childhood injuries in Greece: a national problem  

Microsoft Academic Search

During a 5-year period, out of 110066 children with injuries recorded in the Greek Emergency Department Injury Surveillance System (EDISS), 91 had firework-related injuries. Descriptive analyses and the Barrell matrix were used to determine risk factors and extrapolated national firework childhood injury figures were calculated. The estimated annual incidence of childhood firework injuries treated in the emergency departments of hospitals

Konte Vassilia; Petridou Eleni; Trichopoulos Dimitrios

2004-01-01

236

Relationship Between Sleep Problems and Quality of Life in Children With ADHD.  

PubMed

Objective: The purpose of this study is to assess the sleep behaviors, sleep problems and frequency, and relationship with psychiatric comorbidities in ADHD Combined type and to evaluate the effect of sleep problems on quality of life. Method: Forty-six boys, aged 7 to 13 years, with ADHD-combined type and 31 healthy boys were included. ADHD children were never treated for sleep or psychiatric disorders. Intelligence quotient (IQ) test scores were minimum 80, body mass index were normal and did not have medical disorders. Parents completed Children's Sleep Habits Questionnaire, Conners' Parent Rating Scale and The Pediatric Quality of Life Inventory (PedsQL) and participants were asked about sleep behaviors and were administered PedsQL and Schedule for Affective Disorders and Schizophrenia. Results: The frequency of sleep problems in ADHD is 84.8%, higher than the control group (p = .002). Evaluating PedsQL scores, the quality of life is worse in physical, psychosocial health, and total life quality (p < .05). ADHD group with sleep problems have more night wakings than control group with sleep problems (p = .02). The comorbidity do not increase sleep problems. The frequency of parasomnias is increased in group with learning disorders (p = .05). Conclusion: The results of this study, which controls for a number of possible confounders found in previous examinations of ADHD and sleep, support the results of a number of other studies that have found an increased overall prevalence of parent-reported sleep disturbances in children with ADHD compared with healthy control participants. As the ADHD group have more night wakings than the control group through the night, it is thought that night wakings that cause a partitioned sleep may be important signs seen in ADHD. That could be suggested by two hypotheses. First one is that, daytime sleepiness is more common in ADHD and those children present excessive hyperactivity during the day to stay awake and the second one is the improvement of ADHD signs when the drugs for sleepiness are used. Usage of standardized and valid diagnostic criteria, exclusion of adolescence, gender, socioeconomic level, primary sleep problems, medical disorders and low IQ level, making allowances for effect of comorbidities and having compared with the control group are the important methodological features of this study. The most important limitation of this study is small sample size that makes the findings less generalizable to other groups of children with ADHD, and another one is not having used objective measurements together with subjective measurements. In conclusion, these results underscore the importance of screening all children who have a symptom constellation suggestive of ADHD for sleep problems that may either play a causative role or exacerbate the clinical appearance of ADHD in a given child. Correct evaluation and treatment of sleep problems increase the life quality of family and child and also decrease the severity of ADHD symptoms. (J. of Att. Dis. 2013; XX(X) 1-XX). PMID:23511553

Yürümez, Esra; Kiliç, Birim Günay

2013-03-19

237

Prejudices and elderly patients’ personality – the problem of quality of care and quality of life in geriatric medicine  

PubMed Central

Background The article discusses the position of elderly patients in the context of medical intervention. The phenomenon of a “greying” population has changed the attitude towards the elderly but common observations prove that the quality of geriatric care is still unsatisfactory. This is a comparative study of personality among people at different ages, designed to improve specialists’ understanding of ageing. The results are discussed in relation to the elderly patient-centered paradigm to counterbalance ageist practices. Material/Methods This study involved 164 persons in early and late adulthood. Among the old, there were the young old (ages 65–74) and the older old (ages 75+). All participants were asked to fill-out the NEO-FFI [11]. Results The results demonstrate age-related differences in personality. In late adulthood, in comparison to early adulthood, there is decreased openness to new experiences. Two traits – agreeableness and conscientiousness – increase significantly. Age did not differentiate significantly the level of neuroticism or extraversion. The results of cluster analyses show differences in taxonomies of personality traits at different periods of life. Conclusions The results challenge the stereotypes that present older people as neurotic and aggressive. Age did not significantly influence the level of neuroticism or extraversion. In general, the obtained results prove that the ageist assumption that geriatric patients are troublesome is false. This article builds support for effective change in geriatric professional practices and improvement in elderly patients’ quality of life. PMID:23949099

B?achnio, Aleksandra; Buli?ski, Leszek

2013-01-01

238

University and Industry Collaboration to Solve Welding Quality Problem Using Design of Experiments (DOE)  

NSDL National Science Digital Library

A local automotive seat supplier experienced a major quality problem in the fabrication of the metal seat frame used in the manufacture of the front bucket seats of automobiles. This quality concern was failure of the seat cushion weld nuts to adhere to the metal seat frame during random quality torque testing at the lower specification limit. A company executive contacted Middle Tennessee State University (MTSU) and requested a six-sigma study to determine the root causes of the problem and to work with his engineering and operations personnel to implement countermeasures. The six-sigma project team was setup by the company Project Champion and was led by the university Project Leader. The team consisted of the company welding engineer, three operations personnel, the MTSU professor, a graduate student, and three undergraduates. This paper focuses on the Design-of-Experiments portion of this project that required close collaboration between the industry and the university personnel. Note: This paper to be presented at the CIEC 2006 Conference.

Gore, David

239

Relations over Time among Children's Shyness, Emotionality, and Internalizing Problems  

ERIC Educational Resources Information Center

Data regarding children's shyness and emotionality were collected at three time points, two years apart (T1: N = 214, M = 6.12 years; T2: N = 185, M = 7.67 years; T3: N = 185, M = 9.70 years), and internalizing data were collected at T1 and T3. Relations among parent-rated shyness, emotionality [parent- and teacher-rated anger, sadness, and…

Eggum, Natalie D.; Eisenberg, Nancy; Reiser, Mark; Spinrad, Tracy L.; Valiente, Carlos; Sallquist, Julie; Michalik, Nicole M.; Liew, Jeffrey

2012-01-01

240

Love and the commitment problem in romantic relations and friendship  

Microsoft Academic Search

On the basis of the proposition that love promotes commitment, the authors predicted that love would motivate approach, have a distinct signal, and correlate with commitment-enhancing pro- cesses when relationships are threatened. The authors studied romantic partners and adolescent opposite-sex friends during interactions that elicited love and threatened the bond. As expected, the experience of love correlated with approach-related states

Gian C. Gonzaga; Dacher Keltner; Esme A. Londahl; Michael D. Smith

2001-01-01

241

Effects of global warming on floods and droughts and related water quality of rivers  

Microsoft Academic Search

This review focuses on the effect of global warming on droughts, rainstorms and floods and related water quality of rivers. Relations of temperature, rainstorms and river discharges with water quality variables like water temperature, chemical concentrations and microbiological activity are discussed. Examples out of literature are given, mainly for Europe and \\u000aThe Netherlands. Due to the background of Kiwa, the

B. De Jong

2006-01-01

242

Health-Related Quality of Life among Abused Women One Year after Leaving a Violent Partner  

ERIC Educational Resources Information Center

This is the first follow up study measuring quality of life among abused women who have left their abusive partner. The women (n = 22) answered a questionnaire while staying at women's shelter and one year later. The aim was to examine long-term effects of intimate partner violence against women on health-related quality of life. Health-related

Alsaker, Kjersti; Moen, Bente E.; Kristoffersen, Kjell

2008-01-01

243

Problems of the Sensitivity Parameter and Its Relation to the Time-varying Fundamental Couplings Problems  

E-print Network

The sensitivity parameter is widely used for quantifying fine tuning. However, examples show it fails to give correct results under certain circumstances. We argue that these problems only occur when calculating the sensitivity of a dimensionful mass parameter at one energy scale to the variation of a dimensionless coupling constant at another energy scale. Thus, by mechanisms such as dynamical symmetry breaking etc, the high sensitivity of the energy scale parameter (\\Lambda) to the dimensionless coupling constant can affect the reliability of the sensitivity parameter through the renormalization invariant factor of the dimensionful parameter. Theoretically, These phenomena are similar to the problems associated with the time-varying coupling constant discovered recently. We argue that, the reliability of the sensitivity parameter can be improved if it is used properly.

Su Yan

2007-10-23

244

Some three-dimensional problems related to dielectric breakdown and polycrystal plasticity  

E-print Network

Some three-dimensional problems related to dielectric breakdown and polycrystal plasticity Adriana by eccentric or unbounded yield sets Kbas; and dielectric breakdown is described by an L homogenization problem whether they can be improved. We examine this question for two model problems, involving 3D gradients

Garroni, Adriana

245

Moisture and Home Energy Conservation: How to Detect, Solve and Avoid Related Problems.  

ERIC Educational Resources Information Center

Moisture problems are identified as an important element in home energy conservation programs. A systematic approach to understanding, recognizing, solving, and preventing moisture-related problems is offered in this four-section report. Section I examines the root of moisture problems. Section II discusses symptoms and causes of excess moisture…

National Center for Appropriate Technology, Butte, MT.

246

The Relations among Cumulative Risk, Parenting, and Behavior Problems during Early Childhood  

ERIC Educational Resources Information Center

Background: This study examined relations among cumulative risk, nurturant and involved parenting, and behavior problems across early childhood. Methods: Cumulative risk, parenting, and behavior problems were measured in a sample of low-income toddlers participating in a family-centered program to prevent conduct problems. Results: Path analysis…

Trentacosta, Christopher J.; Hyde, Luke W.; Shaw, Daniel S.; Dishion, Thomas J.; Gardner, Frances; Wilson, Melvin

2008-01-01

247

The Relations of Internalizing Symptoms to Conflict and Interpersonal Problem Solving in Close Relationships  

Microsoft Academic Search

This study examined the relations between interpersonal conflict, interpersonal problem solving, and internalizing symptoms (viz., depression and anxiety symptoms) in a sample of 123 college students. Conflict was assessed in five different close relationships (viz., best friend, second best friend, romantic partner, mother, father). In addition, five dimensions of problem-solving ability were examined (viz., positive and negative problem orientation, rational

Esme A. Londahl; Anna Tverskoy; Thomas J. D’Zurilla

2005-01-01

248

Theory of Quantum Pulse Position Modulation and Related Numerical Problems  

E-print Network

The paper deals with quantum pulse position modulation (PPM), both in the absence (pure states) and in the presence (mixed states) of thermal noise, using the Glauber representation of coherent laser radiation. The objective is to find optimal (or suboptimal) measurement operators and to evaluate the corresponding error probability. For PPM, the correct formulation of quantum states is given by the tensorial product of m identical Hilbert spaces, where m is the PPM order. The presence of mixed states, due to thermal noise, generates an optimization problem involving matrices of huge dimensions, which already for 4-PPM, are of the order of ten thousand. To overcome this computational complexity, the currently available methods of quantum detection, which are based on explicit results, convex linear programming and square root measurement, are compared to find the computationally less expensive one. In this paper a fundamental role is played by the geometrically uniform symmetry of the quantum PPM format. The evaluation of error probability confirms the vast superiority of the quantum detection over its classical counterpart.

G. Cariolaro; G. Pierobon

2009-11-13

249

Assessment of oral health related quality of life  

Microsoft Academic Search

In Dentistry, as in other branches of Medicine, it has been recognised that objective measures of disease provide little insight\\u000a into the impact of oral disorders on daily living and quality of life. A significant body of development work has been undertaken\\u000a to provide health status measures for use as outcome measures in dentistry. In descriptive population studies, poor oral

P Finbarr Allen

2003-01-01

250

Health-related quality of life outcomes after cholecystectomy.  

PubMed

Gallbladder diseases are very common in developed countries. Complicated gallstone disease represents the most frequent of biliary disorders for which surgery is regularly advocated. As regards, cholecystectomy represents a common abdominal surgical intervention; it can be performed as either an elective intervention or emergency surgery, in the case of gangrene, perforation, peritonitis or sepsis. Nowadays, the laparoscopic approach is preferred over open laparotomy. Globally, numerous cholecystectomies are performed daily; however, little evidence exists regarding assessment of post-surgical quality of life (QOL) following these interventions. To assess post-cholecystectomy QOL, in fact, documentation of high quality care has been subject to extended discussions, and the use of patient-reported outcome satisfaction for quality improvement has been advocated for several years. However, there has been little research published regarding QOL outcomes following cholecystectomy; in addition, much of the current literature lacks systematic data on patient-centered outcomes. Then, although several tools have been used to measure QOL after cholecystectomy, difficulty remains in selecting meaningful parameters in order to obtain reproducible data to reflect postoperative QOL. The aim of this study was to review the impact of surgery for gallbladder diseases on QOL. This review includes Medline searches of current literature on QOL following cholecystectomy. Most studies demonstrated that symptomatic patients profited more from surgery than patients receiving an elective intervention. Thus, the gain in QOL depends on the general conditions before surgery, and patients without symptoms profit less or may even have a reduction in QOL. PMID:22174543

Carraro, Amedeo; Mazloum, Dania El; Bihl, Florian

2011-12-01

251

Problem of data quality and the limitations of the infrastructure approach  

NASA Astrophysics Data System (ADS)

The 'Infrastructure Approach' is a PACS implementation methodology wherein the archive, network and information systems interfaces are acquired first, and workstations are installed later. The approach allows building a history of archived image data, so that most prior examinations are available in digital form when workstations are deployed. A limitation of the Infrastructure Approach is that the deferred use of digital image data defeats many data quality management functions that are provided automatically by human mechanisms when data is immediately used for the completion of clinical tasks. If the digital data is used solely for archiving while reports are interpreted from film, the radiologist serves only as a check against lost films, and another person must be designated as responsible for the quality of the digital data. Data from the Radiology Information System and the PACS were analyzed to assess the nature and frequency of system and data quality errors. The error level was found to be acceptable if supported by auditing and error resolution procedures requiring additional staff time, and in any case was better than the loss rate of a hardcopy film archive. It is concluded that the problem of data quality compromises but does not negate the value of the Infrastructure Approach. The Infrastructure Approach should best be employed only to a limited extent, and that any phased PACS implementation should have a substantial complement of workstations dedicated to softcopy interpretation for at least some applications, and with full deployment following not long thereafter.

Behlen, Fred M.; Sayre, Richard E.; Rackus, Edward; Ye, Dingzhong

1998-07-01

252

Advective accretion disks and related problems including magnetic fields  

NASA Astrophysics Data System (ADS)

Accretion disk theory was first developed assuming local heat balance where the energy produced by viscous heating was emitted from the sides of the disk. One of the important inventions of this theory was the phenomenological treatment of the turbulent viscosity, known as the "alpha" prescription, where the ( r?) component of the stress tensor was approximated by ?p, where ? is a dimensionless constant and p is the pressure. This prescription played a role in the accretion disk theory as important as the mixing-length theory of convection for stellar evolution. Sources of turbulence in accretion disks are discussed, including hydrodynamical turbulence and convection and the role and of ordered and disordered magnetic fields. In parallel with the optically thick geometrically thin accretion disk models, a new branch of the optically thin accretion disk models was discovered, with a larger thickness for the same total luminosity. The choice between these solutions should be made on the basis of a stability analysis. The ideas underlying the necessity for including advection in accretion disk theory are presented and models with advection are reviewed. The low-luminosity, optically thin accretion disk models with advection are discussed, and the limits on advection dominated accretion flows (ADAF) imposed by the presence of a magnetic field are analyzed. The behavior of accretion disks in the presence of ordered and disordered magnetic fields are discussed. The interaction of an accretion disk with a rotating magnetized star is reviewed including the formation of magnetohydrodynamic (MHD) outflows, magnetic braking of the star's rotation, and the propeller effect. The problems of the MHD origin of jets from magnetized disks are discussed including the ejection of mass, energy, angular momentum, and magnetic flux from the disk in both in the hydromagnetic and Poynting flux regimes. Recent MHD simulation results are discussed.

Bisnovatyi-Kogan, G. S.; Lovelace, R. V. E.

2001-12-01

253

Applications of decision analysis and related techniques to industrial engineering problems at KSC  

NASA Technical Reports Server (NTRS)

This report provides: (1) a discussion of the origination of decision analysis problems (well-structured problems) from ill-structured problems; (2) a review of the various methodologies and software packages for decision analysis and related problem areas; (3) a discussion of how the characteristics of a decision analysis problem affect the choice of modeling methodologies, thus providing a guide as to when to choose a particular methodology; and (4) examples of applications of decision analysis to particular problems encountered by the IE Group at KSC. With respect to the specific applications at KSC, particular emphasis is placed on the use of the Demos software package (Lumina Decision Systems, 1993).

Evans, Gerald W.

1995-01-01

254

Wave Propagation in Solids Problem Set 4: Dispersion relation, Phase and  

E-print Network

Wave Propagation in Solids Problem Set 4: Dispersion relation, Phase and Group Velocity Sebastian Kr¨odel 11.10.2013 Problem 1 The most simple dispersive solid medium is a string on an elastic. Also derive the expression for the phase velocity. b) Draw the dispersion relation and highlight: Group

Daraio, Chiara

255

Beating the Odds: Preparing Graduates to Address Gambling-Related Problems  

ERIC Educational Resources Information Center

As gambling opportunities proliferate, social workers are likely to see clients with gambling-related problems, but they often lack the expertise to address these concerns. This descriptive study assessed the inclusion of content on gambling-related problems in graduate social work curricula. Responses to an online survey from 86 (43.7%) of the…

Engel, Rafael J.; Bechtold, Jody; Kim, Yoonmi; Mulvaney, Elizabeth

2012-01-01

256

Functional assessment of geriatric patients in regard to health-related quality of life (HRQoL)  

PubMed Central

Purpose The main aim of our research was to evaluate general health, functioning, and performance parameters, as well as care problems of Geriatric Clinic inpatients in relation to deficits in fulfilling needs. The assessment of health-related quality of life was also performed. Patients and methods The research subjects were patients attending the Clinic of Geriatrics: 149 women and 78 men; 227 persons in total. The research was carried out using a diagnostic poll method, with the application of the Activities of Daily Living questionnaire of assessment of daily efficiency on the basis of the Katz index, the Instrumental Activities of Daily Living questionnaire, the Care Dependency Scale used to measure the level of care dependency and human needs, and the Nottingham Health Profile scale. Results The results showed that the majority of respondents achieved high and medium levels of functional capability. The main problems associated with the fulfillment of needs were difficulties with the adoption of appropriate body posture, movement restrictions, and problems related to participating in unassisted leisure activities outside the home. The general deficit in fulfilling the needs of the patients was low. The most significant problems were related to sleep disorders, restrictions in freedom of movement, loss of vital energy, and ailments resulting in the observable presence of pain. Conclusion Good daily functioning of elderly patients significantly depended on their intellectual and mental efficiency. Elderly patients require a comprehensive, holistic approach to a variety of problems that occur with aging. PMID:25565788

Muszalik, Marta; Kornatowski, Tomasz; Zieli?ska-Wi?czkowska, Halina; K?dziora-Kornatowska, Kornelia; Dijkstra, Ate

2015-01-01

257

A Cube Dismantling Problem Related to Bootstrap Percolation  

NASA Astrophysics Data System (ADS)

An n× n×⋯× n hypercube is made from n d unit hypercubes. Two unit hypercubes are neighbours if they share a ( d-1)-dimensional face. In each step of a dismantling process, we remove a unit hypercube that has precisely d neighbours. A move is balanced if the neighbours are in d orthogonal directions. In the extremal case, there are n d-1 independent unit hypercubes left at the end of the dismantling. We call this set of hypercubes a solution. If a solution is projected in d orthogonal directions and we get the entire [ n] d-1 hypercube in each direction, then the solution is perfect. We show that it is possible to use a greedy algorithm to test whether a set of hypercubes forms a solution. Perfect solutions turn out to be precisely those which can be reached using only balanced moves. Every perfect solution corresponds naturally to a Latin hypercube. However, we show that almost all Latin hypercubes do not correspond to solutions. In three dimensions, we find at least n perfect solutions for every n, and we use our greedy algorithm to count the perfect solutions for n?6. We also construct an infinite family of imperfect solutions and show that the total size of its three orthogonal projections is asymptotic to the minimum possible value. Our results solve several conjectures posed in a proceedings paper by Barát, Korondi and Varga. If our dismantling process is reversed we get a build-up process very closely related to well-studied models of bootstrap percolation. We show that in an important special case our build-up reaches the same maximal position as bootstrap percolation.

Barát, János; Wanless, Ian M.

2012-11-01

258

Quality of life in relation to psychosocial risk variables for eating disorders in women and men  

Microsoft Academic Search

This study examined health-related quality of life in relation to psychosocial variables associated with eating disorders. A sample of 266 women and 114 men from a Midwestern university completed questionnaires asking about both generic and eating disorder-specific health-related quality of life, as well as body dissatisfaction, objectified body consciousness, internalization of sociocultural ideals, and restrained eating. Results revealed that women

Jennifer L. Sanftner

2011-01-01

259

Health Related Quality of Life in Children with Autism Spectrum Disorders: The Clinical and Demographic Related Factors in Turkey  

ERIC Educational Resources Information Center

We aimed to investigate the Health Related Quality of Life and related clinical variables (HRQoL) of children with Autism Spectrum Disorders (ASD). We included 102 children with ASD (46 with autism, 38 with pervasive developmental disorder not otherwise specified (PDD-NOS) and 18 with Asperger's syndrome (AS)) and 39 typically developing children…

Kose, Sezen; Erermis, Serpil; Ozturk, Onder; Ozbaran, Burcu; Demiral, Nagehan; Bildik, Tezan; Aydin, Cahide

2013-01-01

260

Social status, gender and alcohol-related problems: the black young adult experience  

Microsoft Academic Search

Objectives. Using data from the 2001–2002 National Epidemiologic Survey on Alcohol and Related Conditions, this study examined prevalence of drinking and related problems among five racial\\/ethnic groups aged 18–30.Design. Logistic regression analyses examined influences of gender and social status on alcohol-related problems among blacks, controlling for demographics.Results. Black drinkers were significantly less likely to be high-risk or risky\\/heavy episodic drinkers

Dionne C. Godette; Erika Edwards; Chandra L. Ford; Lee Strunin; Timothy Heeren; Ichiro Kawachi

2009-01-01

261

Health-related quality of life after serious occupational injury in Egyptian workers: a cross-sectional study  

PubMed Central

Objectives Occupational injuries can have severe socioeconomic consequences; however, little research has examined the health-related quality of life (HRQoL) of workers following occupational injuries, especially in developing countries. This study was to employ the European Quality of Life Five Dimensions (EQ-5D) tool to measure HRQoL 6?months following serious occupational injury sustained by insured workers in the East Delta Region of Egypt. Design This cross-sectional study was conducted from July to December 2008 among workers injured severely enough to be off work for at least 6?months after an occupational injury. Setting The Nile Insurance Hospital in Qalyubia, Egypt. Participants Adult workers returning for follow-up evaluation after being given 6?months off work by a physician for an occupational injury. Outcomes The workers described their health and quality of life using the EQ-5D instrument. Results Most study participants were male (n=118 (90%)), with mean age of 41.5?years. Fractures were the most common type of injury (n=96 (73%)), mostly involving the lower limbs (n=70 (53%)). Participants identified persistent problems related to mobility (n=78 (60%)), self-care (n=69 (53%)), performing usual activities (n=109 (83%)), pain/discomfort (n=119 (91%)) and anxiety/depression (n=51 (40%)). The perceived HRQoL estimated by the mean (±SD) visual analogue scale (VAS) score among injured workers was 61.6±17.9. Multivariate linear regression showed an association between poor VAS score and amputations, mobility limitation, self-care problems, pain/discomfort and anxiety/depression. Conclusions Some people with occupational injuries experience significant problems such as pain/discomfort, functional limitations and anxiety/depression, long after the injury. Improvement in pain management strategies and physical and psychological rehabilitation may improve their health-related quality of life. PMID:23187968

Salah Eldin, Waleed; Hirshon, Jon Mark; Smith, Gordon S; Kamal, Abdel-Aziz Mohamad; Abou-El-Fetouh, Aisha; El-Setouhy, Maged

2012-01-01

262

Health-Related Quality of Life in Female Long-Term Colorectal Cancer Survivors  

Microsoft Academic Search

Although the number of women who survive treat- ment for colorectal cancer is growing, little is known about the quality of life of long-term survivors. The purpose of analyses presented in this paper is to describe the overall health-related quality of life of female long-term colorectal cancer survivors and the factors that may modify their levels of quality of life.

A. Trentham-Dietz; P. L. REMINGTON; C. M. MOINPOUR; J. M. HAMPTON

2003-01-01

263

Health-related quality of life in children with high-functioning autism.  

PubMed

The health-related quality of life of school-aged children with high-functioning autism is poorly understood. The objectives of this study were to compare the health-related quality of life of children with high-functioning autism to that of typically developing peers and to compare child-self and parent-proxy reports of health-related quality of life of children. A cross-sectional study of children with high-functioning autism (n = 30) and peers (n = 31) was conducted using the Pediatric Quality of Life Inventory 4.0 Generic Core Scales. Children with high-functioning autism had significantly poorer health-related quality of life than peers whether reported by themselves (p < .001) or their parents (p < .001), although disagreement (intra-class coefficient = -.075) between children and parental scores suggested variance in points of view. This study specifically investigated health-related quality of life in children with high-functioning autism as compared to a sample of peers, from the child's perspective. It strengthens earlier findings that children with high-functioning autism experience poorer health-related quality of life than those without this disorder and points to the importance of clinicians working with families to identify areas in a child's life that promote or hinder their sense of well-being. PMID:24212259

Potvin, Marie-Christine; Snider, Laurie; Prelock, Patricia A; Wood-Dauphinee, Sharon; Kehayia, Eva

2015-01-01

264

PALEOENVIRONMENT OF COAL AND ITS RELATION TO DRAINAGE QUALITY  

EPA Science Inventory

The acid production potential of a coal was related to its paleoenvironment (environment of deposition) as interpreted from the overlying strata. Within the Appalachian coal field of eastern Kentucky, coals and associated strata were characterized as either back-barrier, lower de...

265

Problem Solving in the Presence of Others: How Rank and Relationship Quality Impact Resource Acquisition in Chimpanzees (Pan troglodytes)  

PubMed Central

In the wild, chimpanzees (Pan troglodytes) are often faced with clumped food resources that they may know how to access but abstain from doing so due to social pressures. To better understand how social settings influence resource acquisition, we tested fifteen semi-wild chimpanzees from two social groups alone and in the presence of others. We investigated how resource acquisition was affected by relative social dominance, whether collaborative problem solving or (active or passive) sharing occurred amongst any of the dyads, and whether these outcomes were related to relationship quality as determined from six months of observational data. Results indicated that chimpanzees obtained fewer rewards when tested in the presence of others compared to when they were tested alone, and this loss tended to be greater when paired with a higher ranked individual. Individuals demonstrated behavioral inhibition; chimpanzees who showed proficient skill when alone often abstained from solving the task when in the presence of others. Finally, individuals with close social relationships spent more time together in the problem solving space, but collaboration and sharing were infrequent and sessions in which collaboration or sharing did occur contained more instances of aggression. Group living provides benefits and imposes costs, and these findings highlight that one cost of group living may be diminishing productive individual behaviors. PMID:24695486

Cronin, Katherine A.; Pieper, Bridget A.; van Leeuwen, Edwin J. C.; Mundry, Roger; Haun, Daniel B. M.

2014-01-01

266

RELATIONS BETWEEN COPING STRATEGIES AND HEALTH-RELATED QUALITY OF LIFE IN PATIENTS WITH SPINAL CORD LESION  

Microsoft Academic Search

Objective: Although the use of appropriate coping strat- egies has been suggested to be a key factor in determining successful adjustment to severe physical illness\\/disability, little systematic support for this link has been found. We investigated relationships between spinal cord lesion-related coping strategies and health-related quality of life when studying for sociodemographic, disability-related and social support variables. Design and subjects:

Magnus L. Elfstrom; Anna Rydén; Margareta Kreuter; Charles Taft; Marianne Sullivan

2005-01-01

267

Cancer related fatigue: A ubiquitous problem yet so under reported, under recognized and under treated  

PubMed Central

Background: Cancer related fatigue (CRF) is a problem that is highly under reported, under recognized and thus, under treated. About 80% of patients receiving chemotherapy/radiotherapy experience CRF, making it the most common side effect of cancer treatment. Functional assessment of chronic illness therapy fatigue (FACIT-F) version-4 is a 13 item questionnaire that has been used to measure the level of fatigue of cancer patients during their daily activities over the past 7 days. Materials and Methods: 92 patients of age 18 years and above attending the oncology Out Patient Department (OPD) of a regional cancer center were recruited in this study and were given FACIT-F questionnaire. The relevant sociodemographic parameters were obtained from the medical records of the patients. The internal consistency of the 13 items was measured using the Cronbach's alpha. Results: The Cronbach alpha coefficient for FACIT-F scale in our study was found to be 0.74. Kendall's coefficient of concordance was estimated to be 0.080. The correlation between Eastern Cooperative Oncology Group (ECOG) performance status and mean score of FACIT-F was studied, Pearson correlation coefficient was estimated to be 0.271 (P = 0.009). Conclusions: FACIT-F is a brief, simple, easy to administer and patient friendly tool to measure the fatigue in last 7 days. CRF should be given adequate attention from the beginning of the treatment to improve the quality of life of cancer patients.

Kapoor, Akhil; Singhal, Mukesh Kumar; Bagri, Puneet Kumar; Narayan, Satya; Beniwal, Surender; Kumar, Harvindra Singh

2015-01-01

268

On the use of computation optimization opportunities in computer technologies for applied and computational mathematics problems with prescribed quality characteristics  

NASA Astrophysics Data System (ADS)

The use of various opportunities for computation optimization in computer technologies for applied and computational mathematics problems with prescribed quality characteristics is investigated. More precisely, the choice and determination of computational resources and methods of their efficient use for finding an approximate solution of problems up to prescribed accuracy in a limited amount of processor time are investigated.

Babich, M. D.; Zadiraka, V. K.; Lyudvichenko, V. A.; Sergienko, I. V.

2010-12-01

269

Negative Mood and Alcohol Problems are Related to Respiratory Dynamics in Young Adults  

PubMed Central

This study examined the relationship of negative affect and alcohol use behaviors to baseline respiration and respiratory response to emotional challenge in young adults (N = 138, 48% women). Thoracic-to-abdominal ratio, respiratory frequency and variability, and minute volume ventilation (MVV) were measured during a low-demand baseline task, and emotional challenge (viewing emotionally-valenced, emotionally-neutral, and alcohol-related pictures). Negative Mood and Alcohol Problems principal components were generated from self-report measures of negative affect and mood, alcohol use, and use-related problems. The Negative Mood component was positively related to a thoracic bias when measured throughout the study (including baseline and picture exposure). There was generally greater respiratory activity in response to the picture cues, although not specifically in response to the content (emotional or alcohol-related) of the picture cues. The Alcohol Problems component was positively associated with respiratory reactivity to picture cues, when baseline breathing patterns were controlled. Self-report arousal data indicated that higher levels of negative mood, but not alcohol problems, were associated with greater arousal ratings overall. However, those with alcohol problems reported greater arousal to alcohol cues, compared to emotionally neutral cues. These results are consistent with theories relating negative affect and mood to breathing patterns as well as the relationship between alcohol problems and negative emotions, suggesting that the use of respiratory interventions may hold promise for treating problems involving negative affect and mood, as well as drinking problems. PMID:23975541

Lehrer, Paul; Buckman, Jennifer F.; Mun, Eun-Young; Vaschillo, Evgeny G.; Vaschillo, Bronya; Udo, Tomoko; Nguyen, Tam; Bates, Marsha E.

2013-01-01

270

Does Understanding Relational Terminology Mediate Effects of Intervention on Compare Word Problems?  

PubMed Central

The purpose of this study was to assess whether understanding relational terminology (i.e., more, less, and fewer) mediates the effects of intervention on compare word problems. Second-grade classrooms (n = 31) were randomly assigned to 3 conditions: researcher-designed word-problem intervention, researcher-designed calculation intervention, or business-as-usual (teacher-designed) control. Students in word-problem intervention classrooms received instruction on the compare problem type, which included a focus on understanding relational terminology within compare word problems. Analyses, which accounted for variance associated with classroom clustering, indicated that (a) compared to the calculation intervention and business-as-usual conditions, word-problem intervention significantly increased performance on all three subtypes of compare problems and on understanding relational terminology; and (b) the intervention effect was fully mediated by students’ understanding of relational terminology for 1 subtype of compare problems and partially mediated by students’ understanding of relational terminology for the other 2 subtypes. PMID:22221461

Schumacher, Robin F.; Fuchs, Lynn S.

2012-01-01

271

In and Out of the ER: Protein Folding, Quality Control, Degradation, and Related Human Diseases  

E-print Network

In and Out of the ER: Protein Folding, Quality Control, Degradation, and Related Human Diseases 1377 C. Protein folding 1378 II. Protein Translocation, Folding, and Quality Control in the Endoplasmic Reticulum 1379 A. Protein targeting to the ER 1379 B. Chaperone-assisted protein folding in the ER 1379 C

Hebert, Daniel N.

272

Quality of Parent-Child Relations in Adolescence and Later Adult Parenting Outcomes  

ERIC Educational Resources Information Center

Data from the Christchurch Health and Development Study, a 30-year prospective longitudinal study, were used to examine the associations between the quality of parent-child relations in adolescence and adult parenting behaviour 15 years later. At ages 14 and 15 years, cohort members were interviewed about the quality of their relationship with…

Friesen, Myron D.; Woodward, Lianne J.; Horwood, L. John; Fergusson, David M.

2013-01-01

273

Genetic Loci Related to Kernal Quality Differences Between a Soft and a Hard Wheat Cultivar  

Technology Transfer Automated Retrieval System (TEKTRAN)

Hybridizations between hard and soft wheat types could be a source of novel variation for wheat quality improvement. This study was conducted to identify genomic regions related to differences in milling and baking quality between a soft and a hard cultivar of hexaploid wheat (Triticum aestivum L.)...

274

Rural-Urban Analyses of Health-Related Quality of Life among People with Multiple Sclerosis  

ERIC Educational Resources Information Center

Context: Health-related quality of life (HRQOL) is a multi-dimensional construct including aspects of life quality or function that are affected by physical health and symptoms, psychosocial factors, and psychiatric conditions. HRQOL gives a broader measure of the burden of disease than physical impairment or disability levels. Purpose: To…

Buchanan, Robert J.; Zhu, Li; Schiffer, Randolph; Radin, Dagmar; James, Wesley

2008-01-01

275

Wood quality and wood preferences in relation to food preparation and diet composition in Central Malawi  

Microsoft Academic Search

This paper reports a study of wood quality and preferences for type of wood in relation to food preparation and diet composition in Ntcheu District, Malawi. Women preferred splitwood or branches and were reluctant to use twigs and maize stalks because the former is transformed into more charcoal of a better quality with longer burning duration, needs less attention to

Inge D. Brouwer; Adel P. den Hartog; Mandaaliza O. K. Kamwendo; Marjon W. O. Heldens

1996-01-01

276

Desire to Institutionalize a Relative with Dementia: Quality of Premorbid Relationship and Caregiver Gender  

ERIC Educational Resources Information Center

The quality of the relationship between individuals with dementia and their family caregivers has an impact on important clinical outcomes for both. It is unclear, however, how quality of relationship (QoR) affects caregivers' desire to place their relative in a nursing home. We examined the association of QoR with caregivers' desire to…

Winter, Laraine; Gitlin, Laura N.; Dennis, Marie

2011-01-01

277

Is there a relation between neuropsychologic variables and quality of life after stroke?  

Microsoft Academic Search

Hochstenbach JB, Anderson PG, van Limbeek J, Mulder TT. Is there a relation between neuropsychologic variables and quality of life after stroke? Arch Phys Med Rehabil 2001;82:1360-6. Objectives: To describe the quality of life (QOL) of stroke patients and to distill neuropsychologic predictors for poor QOL. Design: A cohort study in which patients were neuropsychologically assessed at a mean of

Jacqueline B. Hochstenbach; Patricia G. Anderson; Jacques van Limbeek; Theo T. Mulder

2001-01-01

278

42 CFR 438.358 - Activities related to external quality review.  

Code of Federal Regulations, 2010 CFR

...related to external quality review. ...EQR must use information from the following...performance improvement projects required by...performance improvement projects and calculation...may also use information derived during...provider surveys of quality of care. ...performance improvement projects in...

2010-10-01

279

The CARES: a generic measure of health-related quality of life for patients with cancer  

Microsoft Academic Search

In spite of the prevalence of neoplastic disorders as a cause of chronic illness, very few of the currently available generic measures of health-related quality of life or health status have been utilized with cancer patients. In this paper we reviewed our studies with the Cancer Rehabilitation Evaluation System (CARES), a cancer-specific measure of rehabilitation needs and quality of life.

P. A. Ganz; C. A. C. Schag; J. J. Lee; M.-S. Sim

1992-01-01

280

Comparing Cognitive, Relational and Stress Mechanisms Underlying Gender Differences in Recovery from Bereavement-Related Internalizing Problems  

Microsoft Academic Search

Four putative mediators underlying gender differences in youths' recovery from bereavement-related internalizing problems were examined in a sample (N = 109; age range = 8–16 years at the initial assessment) of parentally bereaved youth: intrusive thoughts about grief, postdeath stressors, negative appraisals of postdeath stressors, and fear of abandonment. A three-wave parallel process longitudinal growth model design was employed. Changes in internalizing problems and

Michelle Little; Irwin N. Sandler; Sharlene A. Wolchik; Jenn-Yun Tein; Tim S. Ayers

2009-01-01

281

Psychosocial problems of donor heart recipients adversely affecting quality of life.  

PubMed

Heart transplantation has become an accepted therapy for patients suffering from terminal heart disease for whom neither standard forms of medication nor the usual surgery are of any benefit. Although results regarding postoperative quantity and quality of life are encouraging, it must not be overlooked that the patient and his family face, and have to overcome, profound psychosocial problems. The main stressors were identified in interviews with 47 heart transplant patients. The main preoperative problems were: the way of being informed about the diagnosis, the waiting period for transplantation, anguishing doubts about the decision to have a transplant, being a body without heart ('zombie'), guilt and shame regarding the donor, the reactions of others. Postoperatively the patients have to cope with: re-entering social systems, reactions of friends, neighbours and colleagues, rejection episodes, death of a fellow patient, the need to redesign family life. All the problems reported by the patients interviewed are discussed regarding their psychosocial implications, and hints are given on how to minimize them. PMID:1299462

Bunzel, B; Wollenek, G; Grundböck, A

1992-10-01

282

Health related quality of life in Critically ill Patients A study of health related quality of life in critically ill patients admitted on the Intensive Care  

Microsoft Academic Search

Health related quality of life (HRQOL) is a relevant outcome measure for patients admitted to the\\u000aintensive care unit (ICU). Long term outcome for physical and psychological factors, functional\\u000astatus and social interactions are becoming more and more important both for doctors and nurses\\u000aas well as for patients and their relatives (1;2). Therefore doctors and nurses want to know

J. G. M. Hofhuis

2008-01-01

283

Comparison of patient evaluations of health care quality in relation to WHO measures of achievement in 12 European countries.  

PubMed Central

OBJECTIVES: To gain insight into similarities and differences in patient evaluations of quality of primary care across 12 European countries and to correlate patient evaluations with WHO health system performance measures (for example, responsiveness) of these countries. METHODS: Patient evaluations were derived from a series of Quote (QUality of care Through patients' Eyes) instruments designed to measure the quality of primary care. Various research groups provided a total sample of 5133 patients from 12 countries: Belarus, Denmark, Finland, Greece, Ireland, Israel, Italy, the Netherlands, Norway, Portugal, United Kingdom, and Ukraine. Intraclass correlations of 10 Quote items were calculated to measure differences between countries. The world health report 2000 - Health systems: improving performance performance measures in the same countries were correlated with mean Quote scores. FINDINGS: Intra-class correlation coefficients ranged from low to very high, which indicated little variation between countries in some respects (for example, primary care providers have a good understanding of patients' problems in all countries) and large variation in other respects (for example, with respect to prescription of medication and communication between primary care providers). Most correlations between mean Quote scores per country and WHO performance measures were positive. The highest correlation (0.86) was between the primary care provider's understanding of patients' problems and responsiveness according to WHO. CONCLUSIONS: Patient evaluations of the quality of primary care showed large differences across countries and related positively to WHO's performance measures of health care systems. PMID:15042232

Kerssens, Jan J.; Groenewegen, Peter P.; Sixma, Herman J.; Boerma, Wienke G. W.; van der Eijk, Ingrid

2004-01-01

284

Development, Problem Behavior, and Quality of Life in a Population Based Sample of Eight-Year-Old Children with Down Syndrome  

Microsoft Academic Search

ObjectiveChildren with Down syndrome (DS) have delayed psychomotor development. We investigated levels of development, problem behavior, and Health-Related Quality of Life (HRQoL) in a population sample of Dutch eight-year-old children with DS. Developmental outcomes were compared with normative data of eight-year-old children from the general population.MethodOver a three-year-period all parents with an eight-year-old child with DS were approached by the

Helma B. M. van Gameren-Oosterom; Minne Fekkes; Simone E. Buitendijk; Ashna D. Mohangoo; Jeanet Bruil; Jacobus P. Van Wouwe

2011-01-01

285

Polymorphisms in epigenetic and meat quality related genes in fourteen cattle breeds and association with beef quality and carcass traits.  

PubMed

Improvement for carcass traits related to beef quality is the key concern in beef production. Recent reports found that epigenetics mediates the interaction of individuals with environment and nutrition. The present study was designed to analyze the genetic effect of single nucleotide polymorphisms (SNPs) in seven epigenetic-related genes (DNMT1, DNMT3a, DNMT3b, DNMT3L, Ago1, Ago2, and HDAC5) and two meat quality candidate genes (CAPN1 and PRKAG3) on fourteen carcass traits related to beef quality in a Snow Dragon beef population, and also to identify SNPs in a total of fourteen cattle populations. Sixteen SNPs were identified and genotyped in 383 individuals sampled from the 14 cattle breeds, which included 147 samples from the Snow Dragon beef population. Data analysis showed significant association of 8 SNPs within 4 genes related to carcass and/or meat quality traits in the beef populations. SNP1 (13154420A>G) in exon 17 of DNMT1 was significantly associated with rib-eye width and lean meat color score (p<0.05). A novel SNP (SNP4, 76198537A>G) of DNMT3a was significantly associated with six beef quality traits. Those individuals with the wild-type genotype AA of DNMT3a showed an increase in carcass weight, chilled carcass weight, flank thicknesses, chuck short rib thickness, chuck short rib score and in chuck flap weight in contrast to the GG genotype. Five out of six SNPs in DNMT3b gene were significantly associated with three beef quality traits. SNP15 (45219258C>T) in CAPN1 was significantly associated with chuck short rib thickness and lean meat color score (p<0.05). The significant effect of SNP15 on lean meat color score individually and in combination with each of other 14 SNPs qualify this SNP to be used as potential marker for improving the trait. In addition, the frequencies of most wild-type alleles were higher than those of the mutant alleles in the native and foreign cattle breeds. Seven SNPs were identified in the epigenetic-related genes. The SNP15 in CAPN1 could be used as a powerful genetic marker in selection programs for beef quality improvement in the Snow Dragon Beef population. PMID:25656186

Liu, Xuan; Usman, Tahir; Wang, Yachun; Wang, Zezhao; Xu, Xianzhou; Wu, Meng; Zhang, Yi; Zhang, Xu; Li, Qiang; Liu, Lin; Shi, Wanhai; Qin, Chunhua; Geng, Fanjun; Wang, Congyong; Tan, Rui; Huang, Xixia; Liu, Airong; Wu, Hongjun; Tan, Shixin; Yu, Ying

2015-04-01

286

Polymorphisms in Epigenetic and Meat Quality Related Genes in Fourteen Cattle Breeds and Association with Beef Quality and Carcass Traits  

PubMed Central

Improvement for carcass traits related to beef quality is the key concern in beef production. Recent reports found that epigenetics mediates the interaction of individuals with environment and nutrition. The present study was designed to analyze the genetic effect of single nucleotide polymorphisms (SNPs) in seven epigenetic-related genes (DNMT1, DNMT3a, DNMT3b, DNMT3L, Ago1, Ago2, and HDAC5) and two meat quality candidate genes (CAPN1 and PRKAG3) on fourteen carcass traits related to beef quality in a Snow Dragon beef population, and also to identify SNPs in a total of fourteen cattle populations. Sixteen SNPs were identified and genotyped in 383 individuals sampled from the 14 cattle breeds, which included 147 samples from the Snow Dragon beef population. Data analysis showed significant association of 8 SNPs within 4 genes related to carcass and/or meat quality traits in the beef populations. SNP1 (13154420A>G) in exon 17 of DNMT1 was significantly associated with rib-eye width and lean meat color score (p<0.05). A novel SNP (SNP4, 76198537A>G) of DNMT3a was significantly associated with six beef quality traits. Those individuals with the wild-type genotype AA of DNMT3a showed an increase in carcass weight, chilled carcass weight, flank thicknesses, chuck short rib thickness, chuck short rib score and in chuck flap weight in contrast to the GG genotype. Five out of six SNPs in DNMT3b gene were significantly associated with three beef quality traits. SNP15 (45219258C>T) in CAPN1 was significantly associated with chuck short rib thickness and lean meat color score (p<0.05). The significant effect of SNP15 on lean meat color score individually and in combination with each of other 14 SNPs qualify this SNP to be used as potential marker for improving the trait. In addition, the frequencies of most wild-type alleles were higher than those of the mutant alleles in the native and foreign cattle breeds. Seven SNPs were identified in the epigenetic-related genes. The SNP15 in CAPN1 could be used as a powerful genetic marker in selection programs for beef quality improvement in the Snow Dragon Beef population. PMID:25656186

Liu, Xuan; Usman, Tahir; Wang, Yachun; Wang, Zezhao; Xu, Xianzhou; Wu, Meng; Zhang, Yi; Zhang, Xu; Li, Qiang; Liu, Lin; Shi, Wanhai; Qin, Chunhua; Geng, Fanjun; Wang, Congyong; Tan, Rui; Huang, Xixia; Liu, Airong; Wu, Hongjun; Tan, Shixin; Yu, Ying

2015-01-01

287

Air Quality Criteria for Ozone and Related Photochemical Oxidants (First External Review Draft)  

EPA Science Inventory

This first external review draft of the Air Quality Criteria for Ozone and Related Photochemical Oxidants (Ozone Criteria Document) is being released in January 2005 for public comment and for review by EPA's Clean A...

288

AIR QUALITY CRITERIA FOR OZONE AND RELATED PHOTOCHEMICAL OXIDANTS, VOLUMES I-III, EXTERNAL REVIEW DRAFT  

EPA Science Inventory

There is no abstract available for this product. If further information is requested, please refer to the bibliographic citation and contact the Technical Information Staff at the number listed below.. Air Quality Criteria for Ozone and Related Photochemical Oxidants, Volu...

289

The Intervening Role of Relational Aggression between Psychological Control and Friendship Quality  

ERIC Educational Resources Information Center

This study investigated the associations among psychologically controlling parenting, relational aggression, friendship quality, and loneliness during adolescence. A model was proposed in which relational aggression plays an intervening role in the relations between both parental psychological control and friendship outcomes. In a sample comprised…

Soenens, Bart; Vansteenkiste, Maarten; Goossens, Luc; Duriez, Bart; Niemiec, Christopher P.

2008-01-01

290

The Intervening Role of Relational Aggression between Psychological Control and Friendship Quality  

Microsoft Academic Search

This study investigated the associations among psychologically controlling parenting, relational aggression, friendship quality, and loneliness during adolescence. A model was proposed in which relational aggression plays an intervening role in the relations between both parental psychological control and friendship outcomes. In a sample comprised of middle adolescents and their parents, process analyses revealed that psychological control (indexed by parent and

Bart Soenens; Maarten Vansteenkiste; Luc Goossens; Bart Duriez; Christopher P. Niemiec

2008-01-01

291

The Relations of Parental Emotional Expressivity With Quality of Indonesian Children's Social Functioning  

Microsoft Academic Search

In Western societies, parental expression of positive emotion has been positively related to the quality of children's social functioning, whereas their expression of negative emotion has been negatively or inconsistently related. The relations of parental expressivity to 3rd-grade Indonesian children's dispositional regulation, socially appropriate behavior, popularity, and sympathy were examined. Parents, teachers, and peers reported on children's social functioning and

Nancy Eisenberg; Jeffrey Liew; Sri Untari Pidada

2001-01-01

292

Patterns of Problem Behavior in Relation to Thriving and Precocious Behavior in Late Adolescence  

Microsoft Academic Search

Several studies have indicated that an early onset of delinquent and problem behaviors is associated with a greater risk of\\u000a subsequent behavioral and mental health problems. This study builds on that literature by examining histories of behavior\\u000a problems in relation to indicators of thriving and precocious behavior during late adolescence. Using longitudinal data from\\u000a 289 high-risk adolescents, participants were classified

Mary I. Campa; Catherine P. Bradshaw; John Eckenrode; David S. Zielinski

2008-01-01

293

Nutritional quality of southernpeas as related to nitrogen fixation  

E-print Network

of Various Southernpeas. N2 Fixation Cultivar Designation 7 Protein Dry Height Basis High PI 189099 Brown Crowder Calico Crowder 27. 96 a 20. 27 f 20. 97 ef Medium Purple Hull Sp-7 California Blackeye Cream 40 Knuckle Purple Hull 27. 68 a 21. 84... 29 Table 4. Protein Content of Dry Southernpeas as Related to Horticultural Group. Horticultural Group Black Purple Hull Cream Blackeye Brown Speckled / Protein Dr Wei ht Ba 27. 96 a 24. 31 b 24. 34 bc Z1. 84 bc 21. 71 c 20. 97 c...

Futch, Margaret Gwen

1979-01-01

294

Stress fractures in military men and bone quality related factors.  

PubMed

The aetiology of stress fractures is multifactorial, and many risk factors have been implicated. The aim of this study was to explore the relationship between stress fractures, factors and biochemical markers related to bone metabolism, and calcaneal stiffness index measured by quantitative ultrasound in a case control study including male military personnel beyond basic training. Thirty-two male patients with stress fractures were matched with 32 uninjured-healthy volunteers by age, height, body weight and level of physical performance. A questionnaire concerning the calcium intake, alcohol consumption and smoking was completed, the values of several biochemical markers were measured from blood samples, and calcaneal quantitative ultrasound was measured by heel ultrasound for all participants. Statistically significant higher levels of albumin (4.59 +/- 0.28 vs. 4.40 +/- 0.25, p = 0.006) and lower levels of serum osteocalcin (6.26 +/- 1.74 vs. 7.40 +/- 1.80, p = 0.012), mean values of T-scores (- 0.21 +/- 0.95 vs. 0.33 +/- 0.82, p = 0.018) and Z-scores (- 0.14 +/- 0.81 vs. 0.33 +/- 0.71, p = 0.016) were found among patients compared to controls. Based on the results, it seems that a decreased bone turnover and a low calcaneal stiffness index may be related to the incidence of stress fractures amongst male military personnel. PMID:18543161

Chatzipapas, C N; Drosos, G I; Kazakos, K I; Tripsianis, G; Iatrou, C; Verettas, D-A J

2008-11-01

295

Risk assessment modelling of microbiology-related solids separation problems in activated sludge systems  

Microsoft Academic Search

This paper proposes a risk assessment model for settling problems of microbiological origin in activated sludge systems (filamentous bulking, foaming and rising sludge). The aim of the model is not to diagnose microbiology-related solids separation problems with absolute certainty but to quantify in dynamic scenarios whether simulated operational procedures and control strategies lead to favourable conditions for them to arise

Joaquim Comas; Ignasi Rodríguez-roda; Krist V. Gernaey; C. Rosen; U. Jeppsson; Manel Poch

2008-01-01

296

Social Problem-Solving and Mild Intellectual Disabilities: Relations with Externalizing Behavior and Therapeutic Context  

ERIC Educational Resources Information Center

Relations among externalizing behavior, therapeutic context (community care vs. residential care), and social problem-solving by children with mild intellectual disabilities or borderline intelligence were examined. Participants were 186 children (12 to 14 years of age) who responded to a video-based social problem-solving task. Of these, 130…

van Nieuwenhuijzen, Maroesjka; de Castro, Bram Orobio; Wijnroks, Lex; Vermeer, Adri; Matthys, Walter

2009-01-01

297

Determination of School-Related Problems in Children Treated for Cancer  

ERIC Educational Resources Information Center

This descriptive and case-control study was carried out in a pediatric oncology outpatient clinic to determine the school-related physical, social, and psychological problems and problems experienced in academic achievement of children treated for cancer. The sample of the study consisted of 56 Turkish patients with cancer, aged 7-18 years, who…

Yilmaz, Medine C.; Sari, Hatice Yildirim; Cetingul, Nazan; Kantar, Mehmet; Erermis, Serpil; Aksoylar, Serap

2014-01-01

298

Implementation problem for the canonical commutation relation in terms of quantum white noise derivatives  

SciTech Connect

The implementation problem for the canonical commutation relation is reduced to a system of differential equations for Fock space operators containing new type of derivatives. We solve these differential equations systematically by means of quantum white noise calculus, and obtain the solution to the implementation problem.

Ji, Un Cig [Department of Mathematics, Research Institute of Mathematical Finance, Chungbuk National University, Cheongju 361-763 (Korea, Republic of); Obata, Nobuaki [Graduate School of Information Sciences, Tohoku University, Sendai 980-8579 (Japan)

2010-12-15

299

DISTRIBUTED APPROXIMATION ALGORITHMS FOR MINIMUM SPANNING TREES AND OTHER RELATED PROBLEMS WITH  

E-print Network

DISTRIBUTED APPROXIMATION ALGORITHMS FOR MINIMUM SPANNING TREES AND OTHER RELATED PROBLEMS for Minimum Spanning Trees in an Arbitrary Graph . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 Neighbor Tree Scheme . . . . . . . . . . . . . . . . . . . . . . . . . 7 2.1 NNT Scheme

Khan, Maleq

300

Patterns of alcohol consumption and related problems in the general population of Greece.  

PubMed

This paper focuses on patterns of alcohol consumption and related problems, based on a nation-wide home survey sample of 4290 respondents aged 12-64 years. The prevalence of lifetime, past year and past month alcohol use, as well as levels of quantity of alcohol consumed and the reported alcohol-related problems, are presented. Frequency and quantity of consumption increases as age increases. Males were found to drink alcohol more frequently and in higher quantities than females. A higher proportion of young adults reported alcohol-related problems, in comparison to the other age groups. Regional variations in the frequency of consumption of alcohol were observed. However, no differences were found in the geographic distribution of persons of all age groups reporting alcohol-related problems. Respondents of all groups with two or more alcohol related problems expressed a high number of dysphoric and depressive symptoms. Finally, a stepwise discriminant analysis revealed certain socio-demographic, familial, psychological and medical factors to discriminate optimally the "problem" and "non-problem" drinkers in both adolescent and adult age groups. PMID:7888982

Madianos, M G; Gefou-Madianou, D; Stefanis, C

1995-01-01

301

Rewarding results: Improving the quality of treatment for people with alcohol and drug problems.  

PubMed

Substance use disorders are the nation's number one health problem, and lie at the root of many public safety and workplace issues. Improving quality of treatment is as important as improving access to treatment. Leadership for improvement must come from many sources: Congress, SAMHSA, state legislatures, state and local treatment agencies, criminal justice, welfare and other public agencies, employers and managed care organizations, providers, and community leaders. We hope that our report helps leaders see ways to improve treatment quality. Our recommendations can be summed up in a single phrase: reward results. We recognize that there are many avenues for treatment quality improvement, including training, credentialing, best practice dissemination, work force development, facility licensing standards, improvement and implementation of new models for treatment of dual diagnosis patients. We believe, however, that rewarding results is essential to motivating action for improvement. We also believe that if providers receive rewards for improved results, they will creatively open new avenues for improvement--a focus on results gives greater freedom than more detailed mandates for change. Finally, we believe that rewards for result may lead to a restructured treatment system with greater stability and correspondingly greater capacity to improve. While we have placed central emphasis on the role of institutional buyers and managers of care, we believe that the voices of patients and families must be heard. People who have progressed to the stage of recovery, and their families, often have essential insight into what did and did not work for them--their personal stories are frequently compelling and persuasive. We also believe that providers of treatment for substance use disorders are profoundly committed to serving their patients, and often have great understanding of what works. Wise managers will listen very carefully and systematically to the voices of consumers, their families, and their providers. We have advocated that buyers reward results as a central strategy for improving quality. We believe that this is the best long-term strategy, not only to effect quality improvement, but also to end stigmatization and increase resources. We wish, in closing, to reemphasize our shared beliefs that adequate resources are essential, that treating persons with substance use disorders is always emotionally challenging and often profoundly frustrating and alienating, and that those on the front line deserve our unequivocal support and our profound gratitude for their service. Legislators should adequately fund public treatment and mandate parity in insurance reimbursement for treatment of substance use disorders. PMID:15285207

2004-03-01

302

Task-based measures of image quality and their relation to radiation dose and patient risk  

NASA Astrophysics Data System (ADS)

The theory of task-based assessment of image quality is reviewed in the context of imaging with ionizing radiation, and objective figures of merit (FOMs) for image quality are summarized. The variation of the FOMs with the task, the observer and especially with the mean number of photons recorded in the image is discussed. Then various standard methods for specifying radiation dose are reviewed and related to the mean number of photons in the image and hence to image quality. Current knowledge of the relation between local radiation dose and the risk of various adverse effects is summarized, and some graphical depictions of the tradeoffs between image quality and risk are introduced. Then various dose-reduction strategies are discussed in terms of their effect on task-based measures of image quality.

Barrett, Harrison H.; Myers, Kyle J.; Hoeschen, Christoph; Kupinski, Matthew A.; Little, Mark P.

2015-01-01

303

Task-based measures of image quality and their relation to radiation dose and patient risk.  

PubMed

The theory of task-based assessment of image quality is reviewed in the context of imaging with ionizing radiation, and objective figures of merit (FOMs) for image quality are summarized. The variation of the FOMs with the task, the observer and especially with the mean number of photons recorded in the image is discussed. Then various standard methods for specifying radiation dose are reviewed and related to the mean number of photons in the image and hence to image quality. Current knowledge of the relation between local radiation dose and the risk of various adverse effects is summarized, and some graphical depictions of the tradeoffs between image quality and risk are introduced. Then various dose-reduction strategies are discussed in terms of their effect on task-based measures of image quality. PMID:25564960

Barrett, Harrison H; Myers, Kyle J; Hoeschen, Christoph; Kupinski, Matthew A; Little, Mark P

2015-01-21

304

Gambling Related Cognitions Mediate the Association Between Thinking Style and Problem Gambling Severity  

Microsoft Academic Search

This study examined the associations among thinking style (rational versus experiential), gambling related cognitions, and\\u000a problem gambling severity. The participants were 70 female and 41 male regular gamblers who completed the Gambling Related\\u000a Cognitions Scale (Raylu and Oei, Addiction 99:757–769, 2004), the Rational-Experiential Inventory (Pacini and Epstien, J Pers Soc Psychol 76(6):972–987, 1999), and the Problem Gambling Severity Index (Ferris

Melissa S. Emond; Harvey H. C. Marmurek

2010-01-01

305

Solution of inverse problem of fuzzy relational equation by using perceptron model  

NASA Technical Reports Server (NTRS)

A Max-Min fuzzy system can be regarded as a network of max and min operational elements. Thus, the inverse problem of a fuzzy relational equation is interpreted as an input estimation problem from output values in the corresponding network. An approximate network model of a fuzzy relational system is proposed. An algorithm for obtaining an approximate solution of the system is presented for using a neural network technique.

Hirota, Kaoru; Ikoma, Norikazu

1991-01-01

306

Binge Drinking and Alcohol-Related Problems Among Community College Students: Implications for Prevention Policy  

Microsoft Academic Search

Binge drinking and alcohol-related problems among students at traditional 4-year universities have been well documented. However, little is known about the frequency of their such behaviors and its consequences among community college students, who comprise roughly 44% of all undergraduate students in the United States. The present study examined binge drinking and alcohol-related problems in 762 (61% female) ethnically diverse

Felicia D. Sheffield; Jack Darkes; Frances K. Del Boca; Mark S. Goldman

2005-01-01

307

Postoperative recovery and its association with health-related quality of life among day surgery patients  

PubMed Central

Background Day surgery holds advantages for both the patient and the health care organization. However, recovery beyond the first postoperative week and following different types of surgery has not been explored to any greater degree. The current aims were to prospectively describe postoperative recovery and health-related quality of life among different groups of day surgery patients and to explore the association between postoperative recovery and health-related quality of life 30 days after discharge. Methods A consecutive sample of 607 adult day surgery patients undergoing orthopaedic, gynaecological or general surgery was included. Postoperative recovery was assessed on days 1, 7 and 14 using the Swedish Post-discharge Surgery Recovery scale and the Quality of Recovery-23 scale. The EQ-5D was used to assess health-related quality of life preoperatively and 30 days following discharge. A repeated measure ANOVA was conducted to evaluate postoperative recovery from day 1 to day 14 and between different surgical groups. Hierarchical multiple linear regression models were used to explore the association between postoperative recovery and health-related quality of life. Results Postoperative recovery improved from day 1 to 14 in all surgical groups (p<0.001). The orthopaedic patients had lower postoperative recovery on day 14 compared to the general and the gynaecological patients (p<0.001). Health-related quality of life was lower among orthopaedic patients (p<0.001), even if significant improvements over time were seen in all groups. Recovery on day 7 was associated with health-related quality of life 30 days after the day surgery (p<0.05). Conclusion Particularly orthopaedic day surgical patients seem to favour a closer follow-up in order to support recovery and thereby also positively influence health-related quality of life. PMID:23148514

2012-01-01

308

Fuel cells provide a revenue-generating solution to power quality problems  

SciTech Connect

Electric power quality and reliability are becoming increasingly important as computers and microprocessors assume a larger role in commercial, health care and industrial buildings and processes. At the same time, constraints on transmission and distribution of power from central stations are making local areas vulnerable to low voltage, load addition limitations, power quality and power reliability problems. Many customers currently utilize some form of premium power in the form of standby generators and/or UPS systems. These include customers where continuous power is required because of health and safety or security reasons (hospitals, nursing homes, places of public assembly, air traffic control, military installations, telecommunications, etc.) These also include customers with industrial or commercial processes which can`t tolerance an interruption of power because of product loss or equipment damage. The paper discusses the use of the PC25 fuel cell power plant for backup and parallel power supplies for critical industrial applications. Several PC25 installations are described: the use of propane in a PC25; the use by rural cooperatives; and a demonstration of PC25 technology using landfill gas.

King, J.M. Jr.

1996-03-01

309

Comparison of Discriminative Properties Among Disease-Specific Questionnaires for Measuring Health-Related Quality of Life in Patients With Chronic Obstructive Pulmonary Disease  

Microsoft Academic Search

Three disease-specific, health-related quality of life (HRQL) questionnaires have been introduced to assess patients with chronic obstructive pulmonary disease (COPD): the St. George's Respiratory Questionnaire (SGRQ), the Breathing Problems Questionnaire (BPQ), and the Chronic Respiratory Disease Questionnaire (CRQ). The purpose of the present study was to make comparisons between the SGRQ , the BPQ , and the CRQ in their

TAKASHI HAJIRO; KOICHI NISHIMURA; MITSUHIRO TSUKINO; AKIHIKO IKEDA; HIROSHI KOYAMA; TAKATERU IZUMI

1999-01-01

310

On relative periodic solutions of the planar general three-body problem  

NASA Technical Reports Server (NTRS)

We describe two relatively simple reductions to order 6 for the planar general three-body problem. We also show that this reduction leads to the distinction between two types of periodic solutions: absolute or relative periodic solutions. An algorithm for obtaining relative periodic solutions using heliocentric coordinates is then described. It is concluded from the periodicity conditions that relative periodic solutions must form families with a single parameter. Finally, two such families have been obtained numerically and are described in some detail.

Broucke, R.

1975-01-01

311

Stressors, quality of the child-caregiver relationship, and children's mental health problems after parental death: the mediating role of self-system beliefs.  

PubMed

Investigated whether three self-system beliefs, fear of abandonment, coping efficacy, and self-esteem, mediated the relations of stressors and caregiver-child relationship quality with concurrent and prospective internalizing and externalizing problems in a sample of children who had experienced parental death in the previous 2.5 years. The cross-sectional sample consisted of 340 children ages 7-16 and their surviving parent/current caregiver; the longitudinal analyses employed a subset of this sample that consisted of 100 children and their parents/caregivers who were assessed at three time points. A multirater, multimethod measure of caregiver-child relationship quality and a multirater measure of children's mental health problems were used. The cross-sectional model supported a mediational relation for fear of abandonment, coping efficacy, and self-esteem. The three-wave longitudinal model showed that fear of abandonment at Time 2 mediated the relation between stressors at Time 1 and internalizing and externalizing problems at Time 3. Implications of these findings for understanding the development of mental health problems in parentally bereaved children and designing interventions for this at-risk group are discussed. PMID:16502140

Wolchik, Sharlene A; Tein, Jenn-Yun; Sandler, Irwin N; Ayers, Tim S

2006-04-01

312

Siblings exposed to intimate partner violence: linking sibling relationship quality & child adjustment problems.  

PubMed

Although the majority of families that experience intimate partner violence (IPV) have more than one child, most research to date has focused upon a single child within these families. A significant body of research has indicated siblings play an important role in children's adjustment and well-being. To address this gap, the three main goals of the present study were to compare the adjustment of older and younger siblings exposed to IPV, to describe and compare the quality of these sibling relationships from multiple perspectives, and to investigate how sibling adjustment and relationship quality influence children's adjustment. Forty-seven sibling pairs and their mothers were recruited from the community. Mothers self-reported on their violent experiences using the Conflict Tactics Scale, and also estimated the length of time their children were exposed to IPV. Mothers and children completed assessments of child adjustment and the quality of sibling relationships. Observers also assessed the quality of sibling interaction. Results indicated that adjustment between siblings was highly inter-related. On average, mothers reported sibling relationships as less positive but also as less hostile than did siblings themselves. Higher levels of sibling hostility, lower levels of sibling warmth and higher levels of disengagement each significantly predicted child adjustment; however, these effects were predicated upon the adjustment of the other sibling. The sibling relationships of children exposed to IPV made a difference in their individual adjustment, and their adjustment issues influenced how they feel about and interacted with their sibling. Sibling hostility played a stronger role in adjustment issues than sibling warmth. The nature of sibling influences and the direction of future research were discussed. PMID:24021818

Piotrowski, Caroline C; Tailor, Ketan; Cormier, Damien C

2014-01-01

313

Drinking motives as moderators of the effect of ambivalence on drinking and alcohol-related problems  

PubMed Central

The current study seeks to evaluate relationships between drinking motives and alcohol-related ambivalence in the prediction of problem drinking. We expected that: 1) main effects would emerge such that alcohol-related ambivalence would be positively associated with peak drinking and problems; drinking motives would be positively associated with drinking and problems, and 2) interactions would emerge between motives and ambivalence in predicting problematic drinking such that drinking motives would be positively associated with peak drinking and problems, especially among those high in ambivalence over drinking. Six hundred sixty-nine undergraduate students (mean age = 22.95, SD = 5.47, 82.22% female) completed study materials. Results showed that consistent with expectations, ambivalence was positively associated with peak drinking and problems. Further, consistent with expectations, drinking motives were positively associated with peak drinking and problems. Additionally, ambivalence was positively associated with drinking motives. Significant interactions emerged between drinking motives (social and coping) and ambivalence when predicting peak drinking and alcohol-related problems. These findings highlight the importance of considering motives in the relationship between ambivalence and drinking. Clinical implications include the need for tailoring interventions to target individual difference factors that increase risk for heavy drinking and associated problems. This is especially important among college students who may be at risk for problematic behavior. PMID:24094922

Foster, Dawn W.; Neighbors, Clayton; Prokhorov, Alexander

2014-01-01

314

Comparing cognitive, relational and stress mechanisms underlying gender differences in recovery from bereavement-related internalizing problems.  

PubMed

Four putative mediators underlying gender differences in youths' recovery from bereavement-related internalizing problems were examined in a sample (N = 109; age range = 8-16 years at the initial assessment) of parentally bereaved youth: intrusive thoughts about grief, postdeath stressors, negative appraisals of postdeath stressors, and fear of abandonment. A three-wave parallel process longitudinal growth model design was employed. Changes in internalizing problems and mediators were measured as a function of months since the death. Girls showed stability in depression symptoms and a slight rise in anxiety symptoms; boys' trajectories of symptoms of anxiety and depression declined. Girls' higher initial levels of postdeath stressors, threat appraisals and fear of abandonment mediated their higher level of internalizing problems 14 months later. Girls' higher initial fear of abandonment also mediated additional growth in anxiety relative to boys. PMID:20183636

Little, Michelle; Sandler, Irwin N; Wolchik, Sharlene A; Tein, Jenn-Yun; Ayers, Tim S

2009-07-01

315

PHYTOPLANKTON WATER-QUALITY RELATIONSHIPS IN U.S. LAKES. PART VIII: ALGAE ASSOCIATED WITH OR RESPONSIBLE FOR WATER-QUALITY PROBLEMS  

EPA Science Inventory

Environmental data are presented for 117 species and 24 genera of freshwater algae that have been associated with or are responsible for water quality problems. The environmental data are based upon algal occurrence records from 250 lakes sampled in Eastern and Southeastern State...

316

Indoor Air Quality in Schools: Understanding the Problem and Finding the Solution.  

ERIC Educational Resources Information Center

Describes issues and solutions involving indoor air quality in school. Includes indoor air quality action plans, the role of the environmental consultant, and resources available to help school districts develop an indoor air quality action plan. (PKP)

Bacci, Geoff

2002-01-01

317

Externalizing behavior and substance use related problems at 15 years in prenatally cocaine exposed adolescents.  

PubMed

The effect of prenatal cocaine exposure (PCE) on externalizing behavior and substance use related problems at 15 years of age was examined. Participants consisted of 358 adolescents (183 PCE, 175 non-cocaine exposed (NCE)), primarily African-American and of low socioeconomic status, prospectively enrolled in a longitudinal study from birth. Regression analyses indicated that the amount of PCE was associated with higher externalizing behavioral problems (? = .15, p = .02). Adolescents with PCE were also 2.8 times (95% CI = 1.38-5.56) more likely to have substance use related problems than their NCE counterparts. No differences between PCE adolescents in non-kinship adoptive/foster care (n = 44) and PCE adolescents in maternal/relative care (n = 139) were found in externalizing behavior or in the likelihood of substance use related problems. Findings demonstrate teratologic effects of PCE persisting into adolescence. PCE is a reliable marker for the potential development of problem behaviors in adolescence, including substance use related problems. PMID:24636687

Min, Meeyoung O; Minnes, Sonia; Lang, Adelaide; Weishampel, Paul; Short, Elizabeth J; Yoon, Susan; Singer, Lynn T

2014-04-01

318

Peer Victimization as a Mediator of the Relation between Facial Attractiveness and Internalizing Problems  

PubMed Central

This study examined the relations between facial attractiveness, peer victimization, and internalizing problems in early adolescence. We hypothesized that experiences of peer victimization would partially mediate the relationship between attractiveness and internalizing problems. Ratings of attractiveness were obtained from standardized photographs of participants (93 girls, 82 boys). Teachers provided information regarding peer victimization experiences in sixth grade, and seventh grade teachers assessed internalizing problems. Attractiveness was negatively correlated with victimization and internalizing problems. Experiences of peer victimization were positively correlated with internalizing problems. Structural equation modeling provided support for the hypothesized model of peer victimization partially mediating the relationship between attractiveness and internalizing problems. Implications for intervention programs and future research directions are discussed. PMID:21984861

Rosen, Lisa H.; Underwood, Marion K.; Beron, Kurt J.

2011-01-01

319

Using a PenBased Computer to Collect HealthRelated Quality of Life and Utilities Information  

E-print Network

Using a Pen­Based Computer to Collect Health­Related Quality of Life and Utilities Information­client­server paradigm to collect health­ related quality of life information from breast cancer patients attending. INTRODUCTION Information on the effect of disease and treatment on patients' health­related quality of life

Gabrieli, John

320

A quality evaluation methodology for health-related websites based on a 2-tuple fuzzy linguistic approach  

Microsoft Academic Search

Nowadays, the patients and physicians use the health-related websites as an important information source and, therefore, it is critical the quality evaluation of health- related websites. The quality assessment of health-related websites becomes especially relevant because their use imply the existence of a wide range of threats which can affect people's health. Additionally, website quality eval- uation can also contribute

Juan Manuel Moreno; José M. Morales-del-Castillo; Carlos Porcel; Enrique Herrera-Viedma

2010-01-01

321

Health-Related Quality of Life in Cervical Cancer Survivors: A Population-Based Survey  

SciTech Connect

Purpose: In a population-based sample of cervical cancer survivors, health-related quality of life (HRQoL) was assessed 2-10 years postdiagnosis. Methods and Materials: All patients given a diagnosis of cervical cancer in 1995-2003 in the Eindhoven region, The Netherlands, and alive after Jan 2006 were identified through the cancer registry. Generic HRQoL (36-Item Short-Form Health Survey, EQ-5D), cervical cancer-specific HRQoL (European Organization for Research and Treatment of Cancer Quality-of-Life questionnaire cervical cancer module), and anxiety (6-item State Trait Anxiety Inventory) were assessed and compared with a reference population (n = 349). Data for tumor characteristics at diagnosis and disease progression were available. Results: A total of 291 women responded (69%), with a mean age of 53 {+-} 13 (SD) years (range, 31-88 years). Treatment had consisted of surgery (n = 195) or a combination of therapies (n = 75); one woman had not been treated. Of all women, 85% were clinically disease free, 2% had a recurrence/metastasis, and in 13%, this was unknown. After controlling for background characteristics (age, education, job and marital status, having children, and country of birth), generic HRQoL scale scores were similar to the reference population, except for worse mental health in survivors. The most frequent symptoms were crampy pain in the abdomen or belly (17%), urinary leakage (15%), menopausal symptoms (18%), and problems with sexual activity. Compared with the 6-10-year survivors, more sexual worry and worse body image were reported by the 2-5-year survivors. Compared with surgery only, especially primary radiotherapy was associated with an increased frequency of treatment-related side effects, also after controlling for age and disease stage at diagnosis and follow-up. Conclusions: Most cervical cancer survivors were coping well, although their mental health was worse than in the reference population. Even after 2-10 years, radiotherapy was associated with an increased frequency of treatment-related side effects.

Korfage, Ida J. [Department of Public Health, Erasmus MC, University Medical Center Rotterdam, Rotterdam (Netherlands)], E-mail: i.korfage@erasmusmc.nl; Essink-Bot, Marie-Louise [Department of Public Health, Erasmus MC, University Medical Center Rotterdam, Rotterdam (Netherlands); Department of Social Medicine, Academic Medical Centre, University of Amsterdam, Amsterdam (Netherlands); Mols, Floortje; Poll-Franse, Lonneke van de [Center of Research on Psychology in Somatic Diseases (CoRPS), Tilburg University, Tilburg (Netherlands); Comprehensive Cancer Centre South, Eindhoven Cancer Registry, Eindhoven (Netherlands); Kruitwagen, Roy [Department of Gynecology, TweeSteden Hospital, Tilburg (Netherlands); Department of Obstetrics and Gynecology, Academic Hospital Maastricht, Maastricht (Netherlands); Ballegooijen, Marjolein van [Department of Public Health, Erasmus MC, University Medical Center Rotterdam, Rotterdam (Netherlands)

2009-04-01

322

Health-related quality of life and its determinants in children with a congenital diaphragmatic hernia  

PubMed Central

Background The development of new therapeutics has led to progress in the early management of congenital diaphragmatic hernia (CDH) in pediatric intensive care units (PICU). Little is known about the impact on the quality of life (QoL) of children and their family. The aim of this study was to assess the impact of CDH treated according to the most recent concepts and methods outlined above on child survivors’ QoL and their parents’ QoL. Patients and methods This study incorporated a cross-sectional design performed in two PICU (Marseille, France). Families of CDH survivors born between 1999 and 2008 were eligible. The following data were recorded: socio-demographics, antenatal history and delivery, initial hospitalization history. Self-reported data were collected by mail, including current clinical problems of the children (13-symptom list), children’s QoL (Kidscreen-27 questionnaire), and parents’ QoL (Short-Form 36 questionnaire). Children’s QoL score was compared with controls and QoL of survivors of childhood leukemia. Parent’s QoL was compared with controls. Non-parametric statistics were employed. Results Forty-two families agreed to participate and questionnaires were completed by 32 of them. Twenty-one children had a current clinical problems related to CDH. All the QoL scores of CHD survivors were significantly lower compared with controls. The physical well-being dimension was significantly higher for CHD survivors compared with survivors of childhood leukemia. Gastro-esophageal reflux at discharge, antenatal diagnosis, length of stay in the PICU, and neuropsychological and respiratory issues significantly impacted QoL scores of children. The parents of CHD survivors had significantly poorer score in emotional role dimension compared with controls. Conclusion The impact of CDH on QoL seems to be important and must be understood by clinicians who treat these children and their parents. PMID:23786966

2013-01-01

323

Pediatric Health-Related Quality of Life: A Structural Equation Modeling Approach  

PubMed Central

Objectives One of the most referenced theoretical frameworks to measure Health Related Quality of Life (HRQoL) is the Wilson and Cleary framework. With some adaptions this framework has been validated in the adult population, but has not been tested in pediatric populations. Our goal was to empirically investigate it in children. Methods The contributory factors to Health Related Quality of Life that we included were symptom status (presence of chronic disease or hospitalizations), functional status (developmental status), developmental aspects of the individual (social-emotional) behavior, and characteristics of the social environment (socioeconomic status and area of education). Structural equation modeling was used to assess the measurement structure of the model in 214 German children (3–5 years old) participating in a follow-up study that investigates pediatric health outcomes. Results Model fit was ?2?=?5.5; df?=?6; p?=?0.48; SRMR ?=?0.01. The variance explained of Health Related Quality of Life was 15%. Health Related Quality of Life was affected by the area education (i.e. where kindergartens were located) and development status. Developmental status was affected by the area of education, socioeconomic status and individual behavior. Symptoms did not affect the model. Conclusions The goodness of fit and the overall variance explained were good. However, the results between children' and adults' tests differed and denote a conceptual gap between adult and children measures. Indeed, there is a lot of variety in pediatric Health Related Quality of Life measures, which represents a lack of a common definition of pediatric Health Related Quality of Life. We recommend that researchers invest time in the development of pediatric Health Related Quality of Life theory and theory based evaluations. PMID:25415751

Villalonga-Olives, Ester; Kawachi, Ichiro; Almansa, Josué; Witte, Claudia; Lange, Benjamin; Kiese-Himmel, Christiane; von Steinbüchel, Nicole

2014-01-01

324

Long Term Health-Related Quality of Life in Survivors of Sepsis in South West Wales: An Epidemiological Study  

PubMed Central

Introduction Survivors of sepsis report persistent problems that can last years after hospital discharge. The main aim of this study was to investigate long-term health-related quality of life in survivors of SIRS and sepsis compared with Welsh normative data, controlling for age, length of stay and pre-existing conditions. The second aim was to investigate any differences in long-term health-related quality of life specifically with the patients categorised into three groups; SIRS, uncomplicated sepsis and severe sepsis/septic shock. Methods A prospective study design was used in order to investigate all sepsis patients either presenting to the Emergency Department or admitted to the Intensive Care Unit of a regional trauma centre. Baseline demographics, clinical characteristics and outcomes were collected and surviving patients were sent a SF-12v2 survey at between six months to two years post-hospital discharge. Results Quality of life was significantly reduced in all patients when compared to local normative data (all p<0.0001). Reductions in the physical components of health-related quality of life were more pronounced in severe sepsis/septic shock patients when compared to uncomplicated sepsis and SIRS patients, when controlling for age, pre-existing conditions, hospital and ICU length of stay. Conclusions This is the first observational study to specifically focus on the different groups of SIRS and sepsis patients to assess long-term quality of life. Local population norms were used for comparison, rather than UK-wide norms that fail to reflect the intricacies of a country’s population. PMID:25549097

Battle, Ceri E.; Davies, Gareth; Evans, Phillip A.

2014-01-01

325

Quality of life in relation to social and disease factors in patients with type 2 diabetes in Lithuania  

PubMed Central

Background Diabetic patients are more than twice as costly to manage as non-diabetic patients, due mainly to the high costs associated with management of diabetic complications. As in most nations of the world, the number of patients with DM is increasing every year in Lithuania. The aim of this study was to determine relation between quality of the life and disease and social factors of patients with type 2 diabetes in Lithuania. Material/Methods Independently prepared questions about the subjects of the survey were: gender; age; weight; education; social and marital status; duration of the disease (in years); treatment method; complications; morbidity with arterial hypertension; change in dietary habits after diagnosis of diabetes (started to eat accordingly to recommendations of the therapist); how often nourishment is taken accordingly to recommendations of the therapist; if beginning to exercise after diagnosis of the diabetes; and if exercising, exercises at least 2–3 times per week. Body mass index was calculated as the relation between body mass in kg and height m square (BMI=kg/m2). The hospital anxiety and depression (HAD) scale was used for the evaluation of depression and anxiety. Quality of life of patients was evaluated with the SF-36 questionnaire. We surveyed 1022 patients with type 2 diabetes (372 men and 650 women). Association between quality of the life and explanatory parameters (disease and social factors) were analyzed using the logistic regression analysis model. Results We found that women had lower scores than men in all fields of quality of life (p<0.001). Peroral treatment had a positive impact on the quality of life (QL) fields of the role limitations due to emotional problems (ORa 0.16. 95% CI 0.07–0.34; p<0.001). Treatment with insulin had a positive effect on restriction of activity because of emotional problems (ORa ? 0.23. 95% CI 0.11–0.49; p<0.001) and mental health (ORa ? 0.38. 95% CI 0.19–0.78; p=0.008), but had a negative impact on bodily pain (ORa ? 3.95. 95% CI 1.41–11.09; p=0.009) and physical health (ORa ? 4.14. 95% CI 2.03–8.47; p<0.001). Conclusions Age and BMI are less important factors that can influence quality of life. Peroral treatment positively acted on the role limitations due to emotional problems, bodily pain, and mental health, but had a strong negative effect on emotional state. PMID:23462804

Mikaili?kštien?, Aldona; Juozulynas, Algirdas; Narkauskait?, Laura; Žagminas, K?stutis; S?lyga, Jonas; Stukas, Rimantas

2013-01-01

326

Sleep-Related Problems among Children and Adolescents with Anxiety Disorders  

ERIC Educational Resources Information Center

Objective: The present study examined sleep-related problems (SRPs) among a large sample (n = 128) of youth with anxiety disorders (i.e., generalized, separation, and social). The frequency of eight specific SRPs was examined in relation to age, gender, type of anxiety disorder, anxiety severity, and functional impairment. The impact of…

Alfano, Candice A.; Ginsburg, Golda S.; Kingery, Julie Newman

2007-01-01

327

Anger and Approach Motivation in Infancy: Relations to Early Childhood Inhibitory Control and Behavior Problems  

ERIC Educational Resources Information Center

The relations among infant anger reactivity, approach behavior, and frontal electroencephalogram (EEG) asymmetry, and their relations to inhibitory control and behavior problems in early childhood were examined within the context of a longitudinal study of temperament. Two hundred nine infants' anger expressions to arm restraint were observed at 4…

He, Jie; Degnan, Kathryn Amey; McDermott, Jennifer Martin; Henderson, Heather A.; Hane, Amie Ashley; Xu, Qinmei; Fox, Nathan A.

2010-01-01

328

Relations between delay discounting and low to moderate gambling, cannabis, and alcohol problems among university students  

Microsoft Academic Search

Research has generally demonstrated that the discounting of delayed rewards is associated with severity of addictive behaviour. Less clear, however, is the relative strength of the relation for specific addictive behaviours. University students (N=218) completed a computerized delay discounting task for hypothetical monetary rewards, and gambling, cannabis, and alcohol problem severity was assessed. A multiple regression analysis revealed that while

Jonathan N. Stea; David C. Hodgins; Michael J. Lambert

2011-01-01

329

Obesity and Its Related Health Problems in People with Intellectual Disabilities  

ERIC Educational Resources Information Center

Obesity and its related health problems in people with intellectual disabilities were examined, focusing on differences related to their place of residence. The prevalence of obesity was higher in older women living in community group homes than in the same age group of women living in institutes or among the general population. Hyperglycemia,…

Ito, Jun-ichi

2006-01-01

330

Coping as a Moderator of Relations Between Reactivity to Interpersonal Stress, Health Status, and Internalizing Problems  

Microsoft Academic Search

Coping moderation of relations between involuntary stress-reactivity, health status, and internalizing problems was tested in sociotropic college students responding to a standardized laboratory interpersonal stressor. Coping moderated relations between heart rate reactivity and health status, with primary control engagement coping, secondary control engagement coping, and disengagement coping all serving as buffers. Primary control also buffered the link between self-reported arousal

Jennifer K. Connor-Smith; Bruce E. Compas

2004-01-01

331

Clustering Qualitative Data Based on Binary Equivalence Relations: Neighborhood Search Heuristics for the Clique Partitioning Problem  

ERIC Educational Resources Information Center

The clique partitioning problem (CPP) requires the establishment of an equivalence relation for the vertices of a graph such that the sum of the edge costs associated with the relation is minimized. The CPP has important applications for the social sciences because it provides a framework for clustering objects measured on a collection of nominal…

Brusco, Michael J.; Kohn, Hans-Friedrich

2009-01-01

332

Return to Play Guidelines Cannot Solve the Football-Related Concussion Problem  

ERIC Educational Resources Information Center

Background: High school football players are the single largest cohort of athletes playing tackle football, and account for the majority of sport-related concussions. Return to play guidelines (RTPs) have emerged as the preferred approach for addressing the problem of sport-related concussion in youth athletes. Methods: This article reviews…

Johnson, L. Syd M.

2012-01-01

333

Associations of diet quality with health-related quality of life in older Australian men and women.  

PubMed

This study investigated associations between diet quality measures and quality of life two years later. Adults 55-65years participating in the Wellbeing, Eating and Exercise for a Long Life (WELL) study in Victoria, Australia (n=1150 men and n=1307 women) completed a postal survey including a 111-item food frequency questionnaire in 2010. Diet quality in 2010 was assessed via the dietary guideline index (DGI), recommended food score (RFS) and Mediterranean diet score (MDS). The RAND 36-item survey assessed health-related quality of life in 2012. Associations were assessed using logistic regression adjusted for covariates. In men, DGI and RFS were associated with better reported energy (OR=1.79, CI: 1.25, 2.55 and OR=1.56, CI: 1.11, 2.19 respectively), and DGI was additionally associated with better general health (OR=1.54, 95% CI: 1.08, 2.20), and overall mental component summary scale (OR=1.51, CI: 1.07, 2.15) in the fully adjusted model. In women, associations between two indices of diet quality (DGI, RFS) physical function (OR=1.66, CI: 1.19, 2.31 and OR=1.70, CI: 1.21, 2.37 respectively) and general health (OR=1.83, CI: 1.32, 2.54 and OR=1.54, CI: 1.11, 2.14 respectively) were observed. DGI was also associated with overall physical component summary score (OR=1.56, CI: 1.12, 2.17). Additional associations between emotional wellbeing and DGI (OR=1.40, CI: 1.01, 1.93) and RFS (OR=1.44, CI: 1.04, 1.99), and MDS and energy (OR=1.53, CI: 1.11, 2.10) were observed in the fully adjusted model, in women only. Older adults with better quality diets report better health-related quality of life, with additional associations with emotional wellbeing observed in women. PMID:25639944

Milte, Catherine M; Thorpe, Maree G; Crawford, David; Ball, Kylie; McNaughton, Sarah A

2015-04-01

334

Assessing Health-Related Quality of Life in Cataract Patients: The Relationship between utility and Health-Related Quality of Life Measurement  

Microsoft Academic Search

The relationship between health-related quality of life (HQL) measures and patient preference for their health status was\\u000a studied. Study subjects consisted of 132 patients at four hospitals who were scheduled for cataract surgery. Generic and disease-specific\\u000a health status measures were determined in study subjects. The Medical Outcomes Study Short-form 36 (SF-36) item health status\\u000a instrument was used to measure generic

J. E. Lee; P. J. Fos; M. A. Zuniga; P. R. Kastl; J. H. Sung

2000-01-01

335

Gender differences among middle-aged Koreans for health-related quality of life related to metabolic syndrome  

Microsoft Academic Search

Purpose  The influence of metabolic syndrome (MS) on quality of life has not been studied much among Asians, especially Koreans. This\\u000a study compared the association between MS and health-related quality of life (HRQL) by gender for middle-aged Koreans.\\u000a \\u000a \\u000a \\u000a \\u000a Methods  We used data containing 2,264 adults between the ages of 40 and 59 years who participated in the 2005 Korean National Health\\u000a and Nutrition

Yeo-Jin Sohn; Hyun Soon Sohn; Jin-Won Kwon

2011-01-01

336

Assessing Cancer-Related Quality of Life Across a Spectrum of Applications  

Microsoft Academic Search

Health-related quality of life (HRQOL) is increasingly as- sessed to understand the effects of cancer and cancer-related interventions. At the macro level, monitoring HRQOL in the population and in cancer survivors may be important to track progress against cancer and evaluate the outcome of policies and programs. At the meso level, where most re- search, to date, has been focused,

Carolyn Cook Gotay

2004-01-01

337

Effects of aging on arithmetic problem-solving: an event-related brain potential study.  

PubMed

Younger and older participants were asked to indicate if 240 complex two-digit addition problems were smaller than 100 or not. Half of the problems were small-split problems (i.e., the proposed sums were 2% or 5% away from 100; e.g., 53 + 49) and half were large-split problems (i.e., proposed sums were 10% or 15% away from 100; 46 + 39). Behavioral and event-related potential (ERP) data revealed that (a) both groups showed a split effect on both reaction times and percent errors, (b) split effects were smaller for older than for younger adults in ERPs, and (c) the hemispheric asymmetry (left hemisphere advantage) reported for younger adults was reduced in older adults (age-related hemispheric asymmetry reduction). These results suggest that older adults tend to use only one strategy to solve all problems, whereas younger adults flexibly and adaptively use different strategies for small and large-split problems. Implications of these findings for our understanding of age-related similarities and differences in arithmetic problem-solving are discussed. PMID:15701238

El Yagoubi, Radouane; Lemaire, Patrick; Besson, Mireille

2005-01-01

338

The Huntington’s Disease health-related Quality of Life questionnaire (HDQoL): a  

E-print Network

disease-specific measure of health-related quality of life Hocaoglu MB, Gaffan EA, Ho AK. The Huntington’s disease health-related quality of life questionnaire: a disease-specific measure of health-related quality of life. Clin Genet 2012: 81: 117–122. © John Wiley & Sons A/S, 2011 Huntington’s disease (HD) is a genetic neurodegenerative disorder characterized by motor, cognitive and psychiatric disturbances, and yet there is no disease-specific patient-reported health-related quality of life outcome measure for patients. Our aim was to develop and validate such an instrument, i.e. the Huntington’s Disease health-related Quality of Life questionnaire (HDQoL), to capture the true impact of living with this disease. Semi-structured interviews were conducted with the full spectrum of people living with HD, to form a pool of items, which were then examined in a larger sample prior to data-driven item reduction. We provide the statistical basis for the extraction of three different sets of scales from the HDQoL, and present validation and psychometric data on these scales using a sample of 152 participants living with HD. These new patient-derived scales provide promising patient-reported outcome measures for HD. Conflictofinterest The authors have reported no conflicts of interest. Re-use of this article is permitted in accordance with the Terms and

John Wiley; Mb Hocaoglu; Ea Gaffan

2011-01-01

339

Health-related quality of life anticipated with different management strategies for paediatric febrile neutropaenia  

PubMed Central

Background: To describe (1) anticipated health-related quality of life during different strategies for febrile neutropaenia (FN) management and (2) attributes of those preferring inpatient management. Methods: Respondents were parents of children 0–18 years and children 12–18 years receiving cancer treatment. Anticipated health-related quality of life was elicited for four different FN management strategies: entire inpatient, early discharge, outpatient oral and outpatient intravenous (i.v.) therapy. Tools used to measure health-related quality of life were visual analogue scale (VAS), willingness to pay and time trade off. Results: A total of 155 parents and 43 children participated. For parents, median VAS scores were highest for early discharge (5.9, interquartile range 4.4–7.2) and outpatient i.v. (5.9, interquartile range 4.4–7.3). For children, median scores were highest for early discharge (6.1, interquartile range 4.6–7.2). In contrast, the most commonly preferred strategy for parents and children was inpatient in 55.0% and 37.2%, respectively. Higher current child health-related quality of life was associated with a stronger preference for outpatient management. Conclusion: Early discharge and outpatient i.v. management are associated with higher anticipated health-related quality of life, although the most commonly preferred strategy was inpatient care. This data may help with determining more cost-effective strategies for paediatric FN. PMID:21694729

Cheng, S; Teuffel, O; Ethier, M C; Diorio, C; Martino, J; Mayo, C; Regier, D; Wing, R; Alibhai, S M H; Sung, L

2011-01-01

340

Problems and solutions in calculating quality-adjusted life years (QALYs).  

PubMed

The quality-adjusted life-year (QALY) is a measure of the value of health outcomes. Since health is a function of length of life and quality of life, the QALY was developed as an attempt to combine the value of these attributes into a single index number. The QALY calculation is simple: the change in utility value induced by the treatment is multiplied by the duration of the treatment effect to provide the number of QALYs gained. QALYs can then be incorporated with medical costs to arrive at a final common denominator of cost/QALY. This parameter can be used to compare the cost-effectiveness of any treatment. Nevertheless, QALYs have been criticised on technical and ethical grounds. A salient problem relies on the numerical nature of its constituent parts. The appropriateness of the QALY arithmetical operation is compromised by the essence of the utility scale: while life-years are expressed in a ratio scale with a true zero, the utility is an interval scale where 0 is an arbitrary value for death. In order to be able to obtain coherent results, both scales would have to be expressed in the same units of measurement. The different nature of these two factors jeopardises the meaning and interpretation of QALYs. A simple general linear transformation of the utility scale suffices to demonstrate that the results of the multiplication are not invariant. Mathematically, the solution to these limitations happens through an alternative calculation of QALYs by means of operations with complex numbers rooted in the well known Pythagorean theorem. Through a series of examples, the new calculation arithmetic is introduced and discussed. PMID:14687421

Prieto, Luis; Sacristán, José A

2003-01-01

341

Validation of a rheumatoid arthritis health-related quality of life instrument, the CSHQ-RA  

Microsoft Academic Search

Objective. To test the validity and reliability of a newly developed disease-specific multidimensional quality of life instrument: the Cedars-Sinai Health-Related Quality of Life Instrument (CSHQ-RA). Methods. A total of 350 rheumatoid arthritis (RA) patients were asked to complete the CSHQ-RA at 2 time points (4 weeks apart). Patients also completed the Medical Outcomes Study Short Form 36 (SF-36) and the

S. M. Russak; C. D. Sherbourne; D. P. Lubeck; H. D. Paulus; C. F. Chiou; N. Sengupta; J. Borenstein; J. Ofman; A. Moadel; M. H. Weisman

2003-01-01

342

A health-related quality of life measure for multiple sclerosis  

Microsoft Academic Search

The need for measures of health-related quality of life (HRQOL) for clinical effectiveness research and for quality of care research, particularly for chronic diseases, is increasingly recognized. We assessed a measure of HRQOL for people with multiple sclerosis, a chronic neurological condition. We used the RAND 36-Item Health Survey 1.0 (aka SF-36) as a generic core measure, to enable comparisons

B. G. Vickrey; R. D. Hays; R. Harooni; L. W. Myers; G. W. Ellison

1995-01-01

343

Venom immunotherapy improves health-related quality of life in patients allergic to yellow jacket venom  

Microsoft Academic Search

Background: Venom immunotherapy (VIT) is effective in preventing anaphylactic reactions after insect stings. The effect of VIT on health-related quality of life (HRQL) was studied to evaluate whether this treatment is of importance to patients. Objective: We compared HRQL outcomes measured with a disease-specific instrument (Vespid Allergy Quality-of-Life Questionnaire [VQLQ]) in patients allergic to yellow jacket venom treated with VIT

Joanne N. G. Oude Elberink; Jan G. R. de Monchy; Sicco van der Heide; Gordon H. Guyatt; Anthony E. J. Dubois

2002-01-01

344

Health-related quality of life in patients with diabetes mellitus and foot ulcers  

Microsoft Academic Search

To investigate health-related quality of life (HRQL) in diabetes patients separately for those with current foot ulcers, those with primary healed ulcers, and those who have undergone minor or major amputations. The EuroQol quality of life (QoL) questionnaire including a visual analogue scale (VAS) was sent to 457 patients treated for foot ulcers by a multidisciplinary team between 1995 and

Gunnel Ragnarson Tennvall; Jan Apelqvist

2000-01-01

345

Measuring health-related quality of life for child maltreatment: a systematic literature review  

Microsoft Academic Search

Background  Child maltreatment causes substantial morbidity and mortality in the U.S. Morbidity associated with child maltreatment can\\u000a reduce health-related quality of life. Accurately measuring the reduction in quality of life associated with child maltreatment\\u000a is essential to the economic evaluation of educational programs and interventions to reduce the incidence of child maltreatment.\\u000a The objective of this study was to review the

Lisa A Prosser; Phaedra S Corso

2007-01-01

346

Interrelationships between Physical Environment Quality, Personal Interaction Quality, Satisfaction and Behavioural Intentions in Relation to Customer Loyalty: The Case of Kinmen's Bed and Breakfast Industry  

Microsoft Academic Search

This research was aimed at exploring an empirical understanding of interrelationships between service quality, customer satisfaction and customer loyalty in the bed and breakfast (B&B) market, using Kinmen Island as an example. Better understanding of B&B customer perceptions of physical environment quality, personal interaction quality and the effects of these perceptions on behavioural intentions relating to customer loyalty and customer

Chien Min Chen; Sheu Hua Chen; Hong Tau Lee

2012-01-01

347

Quantity and quality of obesity-related research in Arab countries: assessment and comparative analysis  

PubMed Central

Background Obesity is a serious worldwide medical condition, considered by some researchers as one of the most serious public health problems of the 21st century. The main objective of this study was to assess the quantity and quality of obesity-related research from Arab countries and compare it with that from non-Arab Middle Eastern countries. Methods Original scientific articles or reviews published by Arab countries about obesity up until 2011 were screened using the ISI Web of Science database. Research activity was assessed by analyzing the annual research productivity, journals names, citations, top 10 active institutions, and the contribution of each Arab country to obesity research. Results The total number of original and review research articles published globally about obesity was 110,167. The leading country in obesity research was United States of America (42.47%). Turkey, Israel, and Iran were in the top 30 countries while Kingdom of Saudi Arabia (KSA), Egypt, and Kuwait ranked 39th, 43rd, and 47th, respectively. A total of 1,121 documents about “obesity” were published by Arab countries, representing 1.0% of the global research output, with 13,343 citations (average citation of 11.9 per document) and an h-index of 44. The Arab countries’ research output was very low until the mid-1990s and then increased steadily. Of the 1,121 documents, 107 (9.55%) were published in the Saudi Medical Journal. KSA, with a total of 318 publications ranked first among Arab countries in research quantity while Kuwait ranked first after adjustment based on population size. King Saud University in KSA was the most productive institution with a total of 140 documents. Compared with other non-Arab Middle Eastern countries, the research productivity from Arab countries was lower than that from Turkey, higher than that from Iran, and close to that from Israel. However, the h-index of documents about obesity published from Arab countries was lower than that of Turkey and Israel, but slightly higher than that from Iran. Conclusions The present data reveals a good contribution by some Arab countries, particularly Arab gulf countries, to obesity research. More efforts are needed by other Arab countries to bridge the gap in this topic and to improve the quality of obesity-related research originating from Arab countries. PMID:25005130

2014-01-01

348

A Latino advantage in oral health-related quality of life is modified by nativity status.  

PubMed

Explanations for the social gradient in health status are informed by the rare exceptions. This cross-sectional observational study examined one such exception, the "Latino paradox" by investigating the presence of a Latino advantage in oral health-related quality of life and the effect of nativity status on this relationship. A nationally representative sample of adults (n=4208) completed the National Health and Nutrition Examination Survey (NHANES) 2003-2004. The impact of oral disorders on oral health-related quality of life was evaluated using the NHANES Oral Health Impact Profile. Exposures of interest were race, ethnicity and nativity status. Covariates included sociodemographic characteristics, smoking status, self-rated health, access to dental care and number of teeth. Unconditional logistic regression models estimated odds of impaired oral health-related quality of life for racial/ethnic and nativity groups compared to the Non-Latino white population. Overall, prevalence of impaired oral health-related quality of life was 15.1%. A protective effect of Latino ethnicity was modified by nativity status, such that Latino immigrants experienced substantially better outcomes than non-Latino whites. However, the effect was limited to first-generation Latinos. U.S. born Latinos did not share the oral health-related quality of life advantage of their foreign-born counterparts. This advantage was not attributable to the healthy migrant phenomenon since immigrants of non-Latino origin did not differ from Non-Latino whites. The excess risk among Non-Hispanic Blacks was rendered non-significant after adjustment for socioeconomic position. A protective effect conferred by Latino nativity is unexpected given relatively disadvantaged socioeconomic position of this group, their language barrier and restrictions to needed dental care. As the Latino advantage in oral health-related quality of life is not explained by healthy immigrant selection, cultural explanations seem more likely than explanations based on characteristics of individuals. PMID:20434250

Sanders, Anne E

2010-07-01

349

Health related quality of life of children with rheumatic heart diseases: reliability of the Brazilian version of the pediatric quality of life inventory™ cardiac module scale  

PubMed Central

Background This study aimed to translate the ‘Pediatric Quality of Life Inventory™ (PedsQL™ 3.0) Cardiac Module’ into Portuguese, adapt it to Brazilian culture, and assess its psychometric properties (validity and reproducibility), and to calculate health-related quality of life scores on the PedsQL 4.0 and PedsQL™ 3.0 Cardiac Module Scales for a group of patients 5 to 18 years old with rheumatic heart disease. Methods The methods suggested by the authors of the original version of the questionnaire included 1) translation by an expert panel; 2) translation back into English and revision by the authors of the original version; 3) pilot study with seven children and parents in each of three age ranges (5 to 7, 8 to 12, and 13 to 18 years old); and 4) assessment of the measurement properties. In this stage, the PedsQL™ 3.0 Cardiac Module and the PedsQL 4.0 Generic Scale were applied to a sample comprising 109 children and adolescents with rheumatic heart disease and their parents or caregivers. The version for parents or caregivers was administered separately on the same day. Results The values of Cronbach’s alpha for all scales assessed in the questionnaire (heart problems and treatment [symptoms], problems with perceived physical appearance, treatment anxiety, cognitive problems, and communication problems) varied from 0.6 to 0.8, indicating good internal consistency. Correlation was found between the scores for the Cardiac Module and the Generic Scale (0.36-0.86), demonstrating convergent validity (Spearman’s correlation coefficient, p?problems with perceived physical appearance, and cognitive and communication problem domains were able to distinguish between groups of patients with mild and moderate/severe heart disease (Student’s t-test, p?

2013-01-01

350

Alcohol expectancies and social deficits relating to problem drinking among college students.  

PubMed

Standardized questionnaires were administered to 116 male and female undergraduates to examine how social deficits and alcohol expectancies relate to alcohol use. Participants were classified as either problem or nonproblem drinkers based on the Rutgers Collegiate Substance Abuse Screening Test. Problem drinkers reported experiencing social anxiety, shyness, and lower self-esteem to a greater extent than nonproblem drinkers. Problem drinkers also held more positive alcohol expectancies than nonproblem drinkers. Contrary to our hypotheses, however, particular types of alcohol expectancies did not interact with specific areas of social functioning to influence problem drinking. Overall, these findings suggest that problem drinkers have positive expectations about the immediate effects of alcohol consumption even though drinking is linked to long-term impairment in social functioning. PMID:10795955

Lewis, B A; O'Neill, H K

2000-01-01

351

Variation and change in the meaning of oral health related quality of life: a ‘grounded’ systems approach  

Microsoft Academic Search

Changes in concepts of health and disease have led to increased interest in health related quality of life in medicine. Quality of life measures tend to treat quality of life as a stable construct that can be measured externally. They do not consider people's differing expectations and assume that what quality of life means to people is stable over time.

Jane Gregory; Barry Gibson; Peter G. Robinson

2005-01-01

352

On complexity of mixed discriminants of rank 2 matrices and related problems  

Microsoft Academic Search

We prove that it is {number_sign}P-hard to compute the mixed discriminant of rank 2 positive semidefinite matrices. We present poly-time algorithms to approximate the 'beast'. We also prove NP-hardness of two problems related to mixed discriminants of rank 2 positive semidefinite matrices. One of them, the so called Full Rank Avoidance problem, had been conjectured to be NP-Complete in [30

Gurvits

2003-01-01

353

Near-optimal hardness results and approximation algorithms for edge-disjoint paths and related problems  

Microsoft Academic Search

We study the approximability of edge-disjoint paths and related problems. In theedge-disjoint paths problem (EDP), we are given a network G with source-sink pairs(s i ; t i ), 1 i k, and the goal is to nd a largest subset of source-sink pairs thatcan be simultaneously connected in an edge-disjoint manner. We show that in directednetworks, for any >

Venkatesan Guruswami; Sanjeev Khanna; Rajmohan Rajaraman; Bruce Shepherd; Mihalis Yannakakis

1999-01-01

354

Physicians debate Internet-related marital problems on CMA's online service  

PubMed Central

The Internet itself has been the topic recently on the CMA's Internet-based discussion group for physicians, Clinical Q&A. A recent discussion involved physicians from around the country who have dealt with patients with marital problems related to the Internet. They concluded that the Internet may have made problems manifest, but the underlying issue--marital disharmony--already existed. PMID:9176432

Sullivan, P

1997-01-01

355

Computing the Smallest kEnclosing Circle and Related Problems \\Lambda  

E-print Network

Computing the Smallest k­Enclosing Circle and Related Problems \\Lambda Alon Efrat y Micha Sharir z­enclosing circle'' ( kSC ) problem: Given a set of n points in the plane and an integer k Ÿ n, find the smallest be solved in time O(nk log 2 n). When only O(n log n) storage is allowed, the running time is O(nk log 2 n

Efrat, Alon

356

The Association between Direct and Relational Bullying and Behaviour Problems among Primary School Children  

Microsoft Academic Search

The prevalence of direct and relational bullying and their dierential relationship to behaviour problems in young primary school children was investigated. Individual interviews were conducted with 1982 children aged 6-9 years (mean age 7-6 years) and 1639 parents completed the Strength and Diculties Questionnaire regarding behaviour problems of their children. Of the 1639 children with both data sets, 4-3% were

Dieter Wolke; Sarah Woods; Linda Bloomfield; Lyn Karstadt

2000-01-01

357

Relative pose problem for non-overlapping surveillance cameras with known gravity vector  

Microsoft Academic Search

We present a method for estimating the relative pose of two calibrated or uncalibrated non-overlapping surveillance cameras from observing a moving object. We show how to tackle the problem of missing point correspondences heavily required by SfM pipelines and how to go beyond this basic paradigm. We relax the non-linear nature of the problem by accepting two assumptions which surveillance

Branislav Micusik

2011-01-01

358

Home hemodialysis and conventional in-center hemodialysis in Japan: a comparison of health-related quality of life.  

PubMed

Health-related quality of life (HRQOL) is an important measure of how disease affects patients' daily life. Conventional in-center hemodialysis (CHD) patients have been found to have decreased HRQOL. Recent study reported that at-home hemodialysis (HHD) improved the long-term HRQOL compared with CHD; however, there have been no data from Japanese HHD patients. A sample of 80 Japanese hemodialysis patients (46 HHD and 34 CHD) was matched for age, sex, and cause of end-stage renal disease. Patient HRQOL was measured using two health surveys: Medical Outcomes Study 36 Item Short Form Health Survey-Version 2 and Kidney Disease Quality of Life-Short Form. HHD patients reported better scores on seven out of eight domains (all domains except general heath) of the Medical Outcomes Study 36 Item Short Form Health Survey-Version 2, as well as better Kidney Disease Quality of Life-Short Form scores with respect to symptoms and problems, effect of kidney disease, and work status. No significant differences were observed for burden of kidney disease, cognitive function, quality of social interaction, sexual function, or sleep. More than 65% of HHD patients stated that they were not bothered at all by limitations on food and water intake. Japanese HHD patients demonstrate significantly higher HRQOL scores. However, while their HRQOL and employment rate were high and they were able to enjoy fewer dietary restrictions, kidney disease remained a great burden. PMID:25330829

Watanabe, Yusuke; Ohno, Yoichi; Inoue, Tsutomu; Takane, Hiroshi; Okada, Hirokazu; Suzuki, Hiromichi

2014-10-01

359

Connecting health-related quality of life and mental health in dementia caregivers from Colombia, South America.  

PubMed

Research in Caucasian populations has begun to examine the broad associations between physical and mental health in dementia caregivers. However, the examination of this relationship in Latin America is largely absent from the literature despite the fact that the region will see a major increase in dementia cases over the next 20 years. The current study examined the associations between health-related quality of life (HRQOL) and mental health in 90 dementia caregivers from Colombia, South America. A canonical correlation found that higher caregiver HRQOL was related to better mental health, as expected. Caregivers with high vitality and low role limitations due to physical problems tended to have low depression and high satisfaction with life. Follow-up multiple regressions found that caregiver role limitations due to physical problems was uniquely associated with satisfaction with life, whereas vitality, role limitations due to physical problems, and pain were uniquely associated with burden (although the pain effect was likely error due to a suppressor effect). Additionally, vitality and social functioning were uniquely negatively related to depression. Because of the extremely high overlap between these two sets of variables, dementia interventions are needed in Latin America that target both caregiver mental and physical health, as both likely operate in unison and influence each other. PMID:24240638

Perrin, Paul B; Morgan, Matthew; Aretouli, Eleni; Sutter, Megan; Snipes, Daniel J; Hoyos, Guillermo Ramirez; Buraye, Jacqueline Arabia; Arango-Lasprilla, Juan Carlos

2014-01-01

360

Prevalence of self-reported nutrition-related health problems in the Lower Mississippi Delta.  

PubMed Central

OBJECTIVES: The purpose of this study was to assess demographic and geographic differences in prevalence of self-reported nutrition-related health problems in Arkansas, Louisiana, and Mississippi. METHODS: The authors analyzed 1991 and 1993 Behavioral Risk Factor Surveillance System data for adults 18 years or older. RESULTS: Less educated African American women and women of other minority groups who were aged 35 to 64 years reported the highest prevalence of health problems. Geographic differences involved prevalence of hypertension, health status, and insurance status. CONCLUSIONS: Specific demographic subgroups and geographic areas with a high risk of health problems are in particular need of targeted interventions. PMID:10474563

Smith, J; Lensing, S; Horton, J A; Lovejoy, J; Zaghloul, S; Forrester, I; McGee, B B; Bogle, M L

1999-01-01

361

A Mediational Model of Racial Discrimination and Alcohol-Related Problems Among African American College Students  

PubMed Central

Objective: Racial discrimination has been identified as an important predictor of alcohol-related outcomes for African Americans. The goal of the current study was to extend previously found links between lifetime discrimination, alcohol use, and alcohol problems as well as to elucidate the affective mechanisms underlying these associations, as moderated by gender. Method: A multiple-groups structural equation model was computed using survey data collected from 619 students from a historically Black college/university. Results: The final model provided excellent fit to the data, explaining 6% of the variance in alcohol consumption and 37% of the variance in alcohol problems. Discrimination was a significant predictor of alcohol-related problems but not, by and large, level of use. For men, anger—but not discrimination-specific anger—was a significant partial mediator of the link between discrimination and both alcohol use and alcohol problems. Depression partially mediated the link between discrimination and alcohol problems for both men and women. Conclusions: The results suggest that, for African Americans whose drinking leads to drinking-related problems, discrimination and poor affective self-regulation are highly relevant and predictive factors, especially for men. PMID:24650816

Boynton, Marcella H; O’Hara, Ross E; Covault, Jonathan; Scott, Denise; Tennen, Howard

2014-01-01

362

Spacer-related problems in two-stage revision knee arthroplasty.  

PubMed

Although articulated cement spacers are frequently used in a staged approach of an infected total knee arthroplasty (TKA), no data are available on the incidence and type of spacer-related problems in these patients. A retrospective analysis of 154 patients who underwent a two-stage revision procedure for an infected TKA was performed. All patients received an articulating cement spacer at the implant removal procedure; their radiographs were analyzed for spacer-related issues such as spacer dislocation, fracture, tilting or translation, and knee subluxation. In 43% of the patients, the spacer was considered as optimal. The main finding of this study is the large incidence (57%) of spacer-specific problems in two-stage revision knee arthroplasty for infected TKA. Spacer tilting and mediolateral translation were found to be the most frequent spacer-specific problems, in 24% and 21% of the cases respectively. These were considered as minor problems. Major problems were seen in 12 % : in 3% of the knees the spacer had dislocated, in 5% the spacer fractured and in 4%, although the spacer seemed to be adequately positioned relative to the femoral and tibial bone, frank knee subluxation could be noted. The impact of spacer-specific problems with articulating cement spacers on final outcome in two-stage revision knee surgery will be further investigated. PMID:24205773

Struelens, Bernard; Claes, Steven; Bellemans, Johan

2013-08-01

363

Changes in Alcohol-Related Problems After Alcohol Policy Changes in Denmark, Finland, and Sweden*  

PubMed Central

Objective: European Union travelers' allowances for alcohol import to Denmark, Sweden, and Finland were abolished in 2004. In addition, excise taxes on alcohol were lowered in 2003 and 2005 in Denmark, and in 2004 in Finland. Using northern Sweden as a control site, this study examines whether levels of reported alcohol problems have changed in Denmark, Finland, and southern Sweden as a consequence of these policy changes. Method: Annual cross-sectional surveys were conducted in Denmark, Finland, and Sweden from 2003 to 2006. Five dependency items and seven extrinsic alcohol-related problems were examined. Changes were analyzed within each country/region with logistic regressions and tested for short- and long-term changes. Differential change was also tested between each country and the control site, northern Sweden. Results: Prevalence of alcohol problems decreased over the study period. Only in selected subgroups did problems increase. This mainly occurred in the samples for northern Sweden and Finland, and mostly among older age groups and men. In relation to the control site, however, no increases in problem prevalence were found. Conclusions: Our findings on a decline in reported alcohol problems largely agree with published reports on alcohol consumption over the same period in the study countries. They do not agree, however, with findings on changes in health and social statistics in Finland and Denmark, where some significant increases in alcohol-related harm have been found. PMID:20105411

Bloomfield, Kim; Wicki, Matthias; Gustafsson, Nina-Katri; Mäkelä, Pia; Room, Robin

2010-01-01

364

Linking functional and relational service quality to customer satisfaction and loyalty: differences between men and women.  

PubMed

This study assessed differences between men and women in the association of perceptions of service quality with customer evaluations. Functional (efficiency with which the service is delivered) and relational (customers' emotional benefits, beyond the core performance, related to the social interaction of customers with employees) dimensions of service quality were measured as well as customer satisfaction and loyalty. The sample of 277 customers (191 men, 86 women), surveyed in 29 Mexican hotels, had a mean age of 38.1 yr. (SD=9.7) for men and 34.5 yr. (SD=11.0) for women. To be eligible for survey, customers had to have spent at least one night in the hotel in question. Analysis indicated that the women and men differed in the association of functional and relational dimensions of service quality with their satisfaction and loyalty. Functional service quality was higher for the men than the women, while relational service quality showed greater predictive power for women than for men, although these accounted for only 4% of the customers' satisfaction variance and 6% of the loyalty variance. PMID:20524565

Sánchez-Hernández, Rosa M; Martínez-Tur, Vicente; Peiró, José M; Moliner, Carolina

2010-04-01

365

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

SciTech Connect

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, and 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.

Not Available

1994-06-01

366

Subjective Sleepiness and Sleep Quality in Adolescents are Related to Objective and Subjective Measures of School Performance  

PubMed Central

This study investigated the relation between sleep and school performance in a large sample of 561 adolescents aged 11–18?years. Three subjective measures of sleep were used: sleepiness, sleep quality, and sleep duration. They were compared to three measures of school performance: objective school grades, self-reported school performance, and parent-reported school performance. Sleepiness – “I feel sleepy during the first hours at school” – appeared to predict both school grades and self-reported school performance. Sleep quality on the other hand – as a measure of (un)interrupted sleep and/or problems falling asleep or waking up – predicted parent-reported school performance. Self- and parent-reported school performance correlated only moderately with school grades. So it turns out that the measures used to measure either sleep or school performance impacts whether or not a relation is found. Further research on sleep and school performance should take this into account. The findings do underscore the notion that sleep in adolescence can be important for learning. They are compatible with the hypothesis that a reduced sleep quality can give rise to sleepiness in the first hours at school which results in lower school performance. This notion could have applied value in counseling adolescents and their parents in changing adolescents’ sleep behavior. PMID:23382727

Boschloo, Annemarie; Krabbendam, Lydia; Dekker, Sanne; Lee, Nikki; de Groot, Renate; Jolles, Jelle

2013-01-01

367

The arithmetic problem size effect in children: an event-related potential study  

PubMed Central

This study used for the first time event-related potentials (ERPs) to examine the well-known arithmetic problem size effect in children. The electrophysiological correlates of this problem size effect have been well documented in adults, but such information in children is lacking. In the present study, 22 typically developing 12-year-olds were asked to solve single-digit addition problems of small (sum ? 10) and large problem size (sum > 10) and to speak the solution into a voice key while ERPs were recorded. Children displayed similar early and late components compared to previous adult studies on the problem size effect. There was no effect of problem size on the early components P1, N1, and P2. The peak amplitude of the N2 component showed more negative potentials on left and right anterior electrodes for large additions compared to small additions, which might reflect differences in attentional and working memory resources between large and small problems. The mean amplitude of the late positivity component which follows the N2, was significantly larger for large than for small additions at right parieto-occipital electrodes, in line with previous adult data. The ERPs of the problem size effect during arithmetic might be a useful neural marker for future studies on fact retrieval impairments in children with mathematical difficulties. PMID:25309405

Van Beek, Leen; Ghesquièr, Pol; De Smedt, Bert; Lagae, Lieven

2014-01-01

368

Riazi HRQoL in obese pediatric sample 1 Health-related quality of life in a clinical sample of  

E-print Network

Riazi HRQoL in obese pediatric sample 1 Health-related quality of life in a clinical sample-related quality of life (HRQoL) in children and adolescents from mixed-ethnic samples. The purpose of this study the Pediatric Quality of Life Inventory (PedsQL; UK version 4). Age-appropriate versions were self

Sheldon, Nathan D.

369

Binge Drinking and Alcohol-Related Problems among U.S-Born Asian Americans  

PubMed Central

Binge drinking (five drinks or more in a 2-hour sitting for men, or four or more drinks in a 2-hour sitting for women) and alcohol-related problems are a growing problem among Asian American young adults. The current study examines the socio-cultural (i.e., generational status and ethnic identity) determinants of binge drinking and alcohol-related problems across U.S.-born, young adult, Asian American ethnic groups. Data were collected from 1,575 Asian American undergraduates from a public university in Southern California. Chinese Americans consisted of the largest Asian ethnicity in the study followed by Vietnamese, Filipino, Korean, South Asian, Japanese, Multi-Asian, and “other Asian American”. Participants completed a web-based assessment of binge drinking, alcohol-related problems, ethnic identity, descriptive norms (i.e., perceived peer drinking norms) and demographic information. An analysis of variance was used to determine potential gender and ethnic differences in binge drinking and alcohol-related problems. Negative binomial regression was selected to examine the relationship between the predictors and outcomes in our model. There were no gender differences between Asian American men and women in regards to binge drinking, however men reported more alcohol-related problems. Japanese Americans reported the highest number of binge drinking episodes and alcohol-related problems, followed by Filipino, and Multi-Asian Americans (e.g., Chinese and Korean). Living off-campus, higher scores in descriptive norms, Greek status, and belonging to the ethnic groups Japanese, Filipino, Multi-Asian, Korean, and South Asian increased the risk of engaging in binge drinking. Quantity of alcohol consumed, Greek status, gender, Filipino, South Asian “Other” Asian, and lower ethnic identity scores were related to alcohol-related problems. Using one of the largest samples collected to date on socio-cultural determinants and drinking among U.S.-born Asian American young adults, the findings highlight the significant variability in drinking patterns between Asian American ethnic groups. PMID:22686146

Iwamoto, Derek; Takamatsu, Stephanie; Castellanos, Jeanett

2012-01-01

370

Health-related quality of life of family caregivers—Evidence from Hesse  

Microsoft Academic Search

Aim  The aim of this study was to analyse the health-related quality of life (HRQOL) of primary family caregivers in comparison\\u000a to the reference values of the average population.\\u000a \\u000a \\u000a \\u000a \\u000a Subjects and methods  Data collection took place in the Werra-Meißner district in 2009 with a response rate of 102 primary family caregivers of\\u000a frail elderly people. The health-related quality of life was measured

Birgit Rösler-Schidlack; Harald Stummer; Herwig Ostermann

2011-01-01

371

Quality of Work Life: Theoretical and Methodological Problems, and Presentation of a New Model and Measuring Instrument  

ERIC Educational Resources Information Center

Purpose: Ever since the concept of Quality of Work Life (QWL) was first used over 30 years ago, a range of definitions and theoretical constructs have succeeded each other with the aim of mitigating the many problems facing the concept. A historical overview of the concept of QWL is presented here. Given the lack of consensus concerning the…

Martel, Jean-Pierre; Dupuis, Gilles

2006-01-01

372

Family Emotional Climate and Sibling Relationship Quality: Influences on Behavioral Problems and Adaptation in Preschool-Aged Children  

ERIC Educational Resources Information Center

We examined the impact of family emotional climate and sibling relationship quality on behavioral problems and adaptation in preschool-aged children. Participants were 63 mothers with a preschool-aged child enrolled in a Southern Arizona Head Start Program. Siblings were identified as children closest in age to target child. Mothers of…

Modry-Mandell, Kerri L.; Gamble, Wendy C.; Taylor, Angela R.

2007-01-01

373

Development of a Health-Related Quality of Life Questionnaire (HRQL) for patients with Extremity Soft Tissue Infections (ESTI)  

PubMed Central

Background Past clinical trials of antimicrobial treatment in soft tissue infections have focused on non-standardized clinical and physiological outcome variables, and have not considered the subjective experience of patients. The objective of this study was to develop a health-related quality of life questionnaire (HRQL) for patients with extremity soft tissue infections (ESTI) for future use in clinical trials. Methods The design of this study followed published guidelines and included item generation, item reduction, and questionnaire preparation. Study subjects were consenting English-speaking adults with acute ESTI requiring prescription of at least two days of outpatient intravenous antibiotic therapy. Results A list of 49 items that adversely impact the quality of life of patients with ESTI was generated by literature review, informal health professional feedback, and semi-structured interviews with twenty patients. A listing of these items was then administered to 95 patients to determine their relative importance on quality of life. A questionnaire was prepared that included the twenty most important items with a 5-point Likert scale response. Questionnaire domains included physical symptoms, problems performing their activities of daily living, impairment of their emotional functioning, and difficulties in their social interactions as related to their ESTI. The final questionnaire was pre-tested on a further ten patients and was named the ESTI-Score. Conclusion The ESTI-Score is a novel instrument designed to quantify the impact of ESTI on quality of life. Future study is required to determine its validity and responsiveness before use as an outcome measure in clinical trials. PMID:17034641

Storck, Aric J; Laupland, Kevin B; Read, Ronald R; Mah, Manuel W; Gill, John M; Nevett, Deborah; Louie, Thomas J

2006-01-01

374

Marijuana-related problems and social anxiety: the role of marijuana behaviors in social situations.  

PubMed

Individuals with elevated social anxiety appear particularly vulnerable to marijuana-related problems. In fact, individuals with social anxiety may be more likely to experience marijuana-related impairment than individuals with other types of anxiety. It is therefore important to determine whether constructs particularly relevant to socially anxious individuals play a role in the expression of marijuana-related problems in this vulnerable population. Given that both social avoidance and using marijuana to cope with negative affect broadly have been found to play a role in marijuana-related problems, the current study utilized a new measure designed to simultaneously assess social avoidance and using marijuana to cope in situations previously identified as anxiety-provoking among those with elevated social anxiety. The Marijuana Use to Cope with Social Anxiety Scale (MCSAS) assessed behaviors regarding 24 social situations: marijuana use to cope in social situations (MCSAS-Cope) and avoidance of social situations if marijuana was unavailable. In Study 1, we found preliminary support for the convergent and discriminant validity and internal consistency of the MCSAS scales. In Study 2, we examined if MCSAS scores were related to marijuana problems among those with (n = 44) and without (n = 44) clinically elevated social anxiety. Individuals with clinically meaningful social anxiety were more likely to use marijuana to cope in social situations and to avoid social situations if marijuana was unavailable. Of importance, MCSAS-Cope uniquely mediated the relationship between social anxiety group status and marijuana-related problems. Results highlight the importance of contextual factors in assessing marijuana-related behaviors among high-risk populations. PMID:22004129

Buckner, Julia D; Heimberg, Richard G; Matthews, Russell A; Silgado, Jose

2012-03-01

375

Tobacco-Related Mortality among Persons with Mental Health and Substance Abuse Problems  

PubMed Central

The rate of cigarette smoking is greater among persons with mental health and/or substance abuse problems. There are few population-based datasets with which to study tobacco mortality in these vulnerable groups. The Oregon Health Authority identified persons who received publicly-funded mental health or substance abuse services from January 1996 through December 2005. These cases were then matched to Oregon Vital Statistics records for all deaths (N= 148,761) in the period 1999-2005. The rate of tobacco-related death rates was higher among persons with substance abuse problems only (53.6%) and those with both substance abuse and mental health problems (46.8%), as compared to the general population (30.7%). The rate of tobacco-related deaths among persons with mental health problems (30%) was similar to that in the general population. Persons receiving substance abuse treatment alone, or receiving both substance abuse and mental health treatment, were more likely to die and more likely to die prematurely of tobacco-related causes as compared to the general population. Persons receiving mental health services alone were not more likely to die of tobacco-related causes, but tobacco-related deaths occurred earlier in this population. PMID:25807109

Bandiera, Frank C.; Anteneh, Berhanu; Le, Thao; Delucchi, Kevin; Guydish, Joseph

2015-01-01

376

Health related Quality of Life with HIV/AIDS in different stages of HIV infection.  

PubMed

Disease stages of HIV infection is one of the important predictor of Health related Quality of Life (HQoL) of the people living with HIV/AIDS. This cross sectional study was an attempt to compare the HQoL of HIV-infected patients across the three CDC stages of HIV-infection namely, asymptomatic, symptomatic, and AIDS-related conditions. A total of 82 patients, 28 in asymptomatic, 26 in symptomatic, and 28 in AIDS-related conditions, from three NGOs and one Infectious Disease Hospital (IDH) were interviewed using interviewer administered semi structured questionnaire developed by adopting "World Health Organization Quality of Life HIV BREF (WHOQOL-HIV BREF) instrument". Analysis revealed that AIDS-related conditions and symptomatic patients were experiencing significantly poorer quality of life than asymptomatic patients in the domain of physical (F=7.006, p <0.005), level of independence) F=6.552, p<0.005(, overall perception of health related quality of life (F=3.634, p<0.05) and overall general health perception (F=7.842, p<0.001). PMID:22828552

Imam, M H; Flora, M S; Moni, M A; Shameem, R K; Haque, M A; Mamun, S A

2012-07-01

377

A test of vegetation-related indicators of wetland quality in the prairie pothole region  

USGS Publications Warehouse

This study was part of an effort by the U.S. Environmental Protection Agency to quantitatively assess the environmental quality or 'health' of wetland resources on regional and national scales. During a two-year pilot study, we tested selected indicators of wetland quality in the U.S. portion of the prairie pothole region (PPR). We assumed that the amount of cropland versus non-cropland (mostly grassland) in the plots containing these basins was a proxy for their quality. We then tested indicators by their ability to discriminate between wetlands at the extremes of that proxy. Amounts of standing dead vegetation were greater in zones of greater water permanence. Depth of litter was greater in zones of greater water permanence and in zones of basins in poor-quality watersheds. Amounts of unvegetated bottom were greater in basins in poor-quality watersheds; lesser amounts occurred in all wetlands during a wetter year. Greater amounts of open water occurred during a wetter year and in zones of greater water permanence. When unadjusted for areas (ha) of communities, plant taxon richness was higher in wet-meadow and shallow-marsh zones in good-quality watersheds than in similar zones in poor-quality watersheds. Wet-meadow zones in good-quality watersheds had greater numbers of native perennials than those in poor-quality watersheds. This relation held when we eliminated all communities in good-quality watersheds larger than the largest communities in poor-quality watersheds from the data set. We conclude that although amounts of unvegetated bottom and plant taxon richness in wet-meadow zones were useful indicators of wetland quality during our study, the search for additional such indicators should continue. The value of these indicators may change with the notoriously unstable hydrological conditions in the PPR. Most valuable would be indicators that could be photographed or otherwise remotely sensed and would remain relatively stable under various hydrological conditions. An ideal set of indicators could detect the absence of stressors, as well as the presence of structures or functions, of known value to major groups of organisms.

Kantrud, H.A.; Newton, W.E.

1996-01-01

378

[Quality of life of deaf people's relatives assisted in a rehabilitation center].  

PubMed

The aim of this study was to assess the quality of life of deaf people's relatives in a rehabilitation service. This descriptive study was conducted from March to June 2005 and a sample of fifteen parents of deaf people assisted in CEPRE/FCM/UNICAMP was interviewed. It was used a Portuguese version of the generic instrument of quality of life assessment WHOQOL--BREF (World Health Organization Quality of Life), along with an identification questionnaire and socio-demographic data. The SPSS program was used in the statistics analysis, with the scores transformed from zero to 100. The Research Ethics Committee of the School of Medical Sciences of Unicamp approved this investigation. The sample interviewed consisted in a majority of women (93.3%), all homemakers with an average of 44 years old. The evaluation of the different items at WHOQOL--BREF indicated that the relatives interviewed admitted to have a good or a very good quality of life. The study showed a better quality of life in the physical (73.8%) and social relationship aspects (72.2%). A lower perception could be seen in the environment domain (51.8%) probably because of their socio-cultural conditions, as well as in the psychological domain (63.3%), which may be related to the fact of living together with a deaf child. PMID:19721963

Bittencourt, Zélia Zilda Lourenço de Camargo; Hoehne, Eduardo Luiz

2009-01-01

379

Health-related quality of life and activities of daily living in 85-year-olds in Sweden.  

PubMed

Few studies have examined health-related quality of life (HRQoL) with respect to daily living and health factors for relatively healthy elderly individuals. To this end, this study examines 85-year-olds' reported HRQoL in relation to social support, perceived health, chronic diseases, healthcare use and instrumental activities of daily living (IADL). Data were collected from 360 participants (55% response rate) between March 2007 and March 2008 using a postal questionnaire and a home visit interview. HRQoL was assessed using the EQ-5D-3L. For the items in the EQ-5D-3L, more problems were related to lower HRQoL. Restricted mobility and occurrence of pain/discomfort was common. Lower HRQoL was associated with increased risk for depression, increased use of medication, increased number of chronic diseases and more problems with IADL. Healthcare use and healthcare costs were correlated with lower HRQoL. HRQoL is of importance to healthcare providers and must be considered together with IADL in the elderly population when planning interventions. These should take into account the specific needs and resources of the older individuals. PMID:24313868

Andersson, Lena B; Marcusson, Jan; Wressle, Ewa

2014-07-01

380

Privacy issues in relational embarrassment: Impact on relational quality and communication satisfaction  

Microsoft Academic Search

Past theorizing on causes for embarrassing situations has not taken the context of the relationship into account. This study takes exception to that oversight and examines embarrassment within the context of romantic relationships. Respondents (n = 199) were asked to identify embarrassing situations caused by romantic partners. Responses were content analyzed and three major categories were found: revealing relational secrets,

Sandra Petronio; Clark Olson; Natalie Dollar

1989-01-01

381

Parental Meta-Emotion Philosophy in Families with Conduct-Problem Children: Links with Peer Relations  

Microsoft Academic Search

We addressed the question of whether mothers of conduct-problem (CP) children differ from mothers of non-CP children in their awareness and coaching of emotion, and also examined whether mother's awareness and coaching of emotion is associated with better peer relations in CP children. Meta-emotion philosophy, assessed through audio taped interviews, and preschool children's peer relations, observed in same-sex dyadic interaction

LynnFainsilber Katz; Bess Windecker-Nelson

2004-01-01

382

Detection of medication-related problems in hospital practice: a review  

PubMed Central

This review examines the effectiveness of detection methods in terms of their ability to identify and accurately determine medication-related problems in hospitals. A search was conducted of databases from inception to June 2012. The following keywords were used in combination: medication error or adverse drug event or adverse drug reaction, comparison, detection, hospital and method. Seven detection methods were considered: chart review, claims data review, computer monitoring, direct care observation, interviews, prospective data collection and incident reporting. Forty relevant studies were located. Detection methods that were better able to identify medication-related problems compared with other methods tested in the same study included chart review, computer monitoring, direct care observation and prospective data collection. However, only small numbers of studies were involved in comparisons with direct care observation (n = 5) and prospective data collection (n = 6). There was little focus on detecting medication-related problems during various stages of the medication process, and comparisons associated with the seriousness of medication-related problems were examined in 19 studies. Only 17 studies involved appropriate comparisons with a gold standard, which provided details about sensitivities and specificities. In view of the relatively low identification of medication-related problems with incident reporting, use of this method in tracking trends over time should be met with some scepticism. Greater attention should be placed on combining methods, such as chart review and computer monitoring in examining trends. More research is needed on the use of claims data, direct care observation, interviews and prospective data collection as detection methods. PMID:23194349

Manias, Elizabeth

2013-01-01

383

A systematic review of studies measuring health-related quality of life of general injury populations  

PubMed Central

Background It is important to obtain greater insight into health-related quality of life (HRQL) of injury patients in order to document people's pathways to recovery and to quantify the impact of injury on population health over time. We performed a systematic review of studies measuring HRQL in general injury populations with a generic health state measure to summarize existing knowledge. Methods Injury studies (1995-2009) were identified with main inclusion criteria being the use of a generic health status measure and not being restricted to one specific type of injury. Articles were collated by study design, HRQL instrument used, timing of assessment(s), predictive variables and ability to detect change over time. Results Forty one studies met inclusion criteria, using 24 different generic HRQL and functional status measures (most used were SF-36, FIM, GOS, EQ-5D). The majority of the studies used a longitudinal design, but with different lengths and timings of follow-up (mostly 6, 12, and 24 months). Different generic health measures were able to discriminate between the health status of subgroups and picked up changes in health status between discharge and 12 month follow-up. Most studies reported high prevalences of health problems within the first year after injury. The twelve studies that reported HRQL utility scores showed considerable but incomplete recovery in the first year after discharge. Conclusion This systematic review demonstrates large variation in use of HRQL instruments, study populations, and assessment time points used in studies measuring HRQL of general injury populations. This variability impedes comparison of HRQL summary scores between studies and prevented formal meta-analyses aiming to quantify and improve precision of the impact of injury on population health over time. PMID:21182775

2010-01-01

384

When is a conclusion worth deriving? A relevance-based analysis of indeterminate relational problems*  

E-print Network

problems* Jean-Baptiste Van der Henst (Institut Jean Nicod, Paris and University of Leuven) Dan Sperber (Institut Jean Nicod, Paris) Guy Politzer (C. N. R. S., Saint-Denis) Correspondance : Jean-Baptiste Van der investigated by researchers on reasoning are relational inferences (Burt, 1919; Piaget, 1921; Hunter, 1957; De

Paris-Sud XI, Université de

385

Relation of Counselor Identification of Client Problem Description to Continuance in a Behavioral Weight Loss Program.  

ERIC Educational Resources Information Center

Investigated relation of counselor ability to articulate salient client information to continuance in weight loss program. Counselors predicted client responses to questions regarding weight loss problems more accurately for clients who later completed program than for those who dropped out. Within one completer group, greater weight loss occurred…

Pekarik, Gene

1988-01-01

386

A SINGULAR LIMIT PROBLEM FOR CONSERVATION LAWS RELATED TO THE CAMASSA-HOLM SHALLOW WATER EQUATION  

E-print Network

A SINGULAR LIMIT PROBLEM FOR CONSERVATION LAWS RELATED TO THE CAMASSA-HOLM SHALLOW WATER EQUATION GIUSEPPE MARIA COCLITE AND KENNETH HVISTENDAHL KARLSEN Abstract. We consider a shallow water equation balance between these two parameters, smooth solutions of the shallow water equation converge

387

A SINGULAR LIMIT PROBLEM FOR CONSERVATION LAWS RELATED TO THE CAMASSAHOLM SHALLOW WATER EQUATION  

E-print Network

A SINGULAR LIMIT PROBLEM FOR CONSERVATION LAWS RELATED TO THE CAMASSA­HOLM SHALLOW WATER EQUATION and phrases. shallow water equation, Burgers equation, conservation law, entropy condition, singular limit GIUSEPPE MARIA COCLITE AND KENNETH HVISTENDAHL KARLSEN Abstract. We consider a shallow water equation

388

Unsolved Problems Related to the Covering Radius of Codes* N. J. A. Sloane  

E-print Network

, and a table of bounds on t[n, k] for n 64 is given in [6]. The first gap occurs when n = 15 and k = 6. A [15Unsolved Problems Related to the Covering Radius of Codes* N. J. A. Sloane Mathematical Sciences Research Center AT&T Bell Laboratories Murray Hill, New Jersey 07974 0. Introduction Codes with low

Sloane, Neil J. A.

389

Unsolved Problems Related to the Covering Radius of Codes * N. J. A. Sloane  

E-print Network

= 15 and k = 6. A [15, 6] codes exists with R = 4, but the best bound only guarantees that R ³ 3Unsolved Problems Related to the Covering Radius of Codes * N. J. A. Sloane Mathematical Sciences Research Center AT&T Bell Laboratories Murray Hill, New Jersey 07974 0. Introduction Codes with low

Sloane, Neil J. A.

390

Alcohol Prevention Strategies on College Campuses and Student Alcohol Abuse and Related Problems  

ERIC Educational Resources Information Center

This study examined the relationship between colleges' alcohol abuse prevention strategies and students' alcohol abuse and related problems. Alcohol prevention coordinators and first year students in 22 colleges reported whether their schools were implementing 48 strategies in six domains, and students (N = 2041) completed another survey…

Ringwalt, Christopher L.; Paschall, Mallie J.; Gitelman, Amy M.

2011-01-01

391

Asymptotic Analysis 52 (2007) 259297 259 On slender shells and related problems  

E-print Network

Asymptotic Analysis 52 (2007) 259­297 259 IOS Press On slender shells and related problems phenomenon for several thin slender bodies or shells, with a small curvature in the transversal direction-shaped" structure formed by two slender plates pasted together along two long edges forming a small angle between

Díaz, Jesús Ildefonso

2007-01-01

392

Binge Drinking and Alcohol-Related Problems among Community College Students: Implications for Prevention Policy  

ERIC Educational Resources Information Center

Binge drinking and alcohol-related problems among students at traditional 4-year universities have been well documented. However, little is known about the frequency of their such behaviors and its consequences among community college students, who comprise roughly 44% of all undergraduate students in the United States. The present study examined…

Sheffield, Felicia D.; Darkes, Jack; Del Boca, Frances K.; Goldman, Mark S.

2005-01-01

393

Using Text Mining to Uncover Students' Technology-Related Problems in Live Video Streaming  

ERIC Educational Resources Information Center

Because of their capacity to sift through large amounts of data, text mining and data mining are enabling higher education institutions to reveal valuable patterns in students' learning behaviours without having to resort to traditional survey methods. In an effort to uncover live video streaming (LVS) students' technology related-problems and to…

Abdous, M'hammed; He, Wu

2011-01-01

394

Cognitive Biases in Individuals with Mild to Borderline Intellectual Disability and Alcohol Use-Related Problems  

ERIC Educational Resources Information Center

The primary aim of the present pilot study was to examine cognitive biases in individuals with mild to borderline ID and alcohol use-related problems. Participants (N = 57) performed the approach avoidance task, picture rating task and visual dot probe task, which was combined with eye-tracking methodology. They were admitted to a forensic setting…

van Duijvenbode, Neomi; Didden, Robert; Voogd, Hubert; Korzilius, Hubert P. L. M.; Engels, Rutger C. M. E.

2012-01-01

395

The Neural Basis of Insight Problem Solving: An Event-Related Potential Study  

ERIC Educational Resources Information Center

The electrophysiological correlates of successful insight problem solving (Chinese logogriphs) were studied in 18 healthy subjects using high-density event-related potentials (ERPs). A new experimental paradigm (learning-testing model) was adopted in order to make subjects find a solution on their own initiative rather than receive an answer…

Qiu, Jiang; Li, Hong; Yang, Dong; Luo, Yuejia; Li, Ying; Wu, Zhenzhen; Zhang, Qinglin

2008-01-01

396

Can I Take the Car? Relations among Parenting Practices and Adolescent Problem-Driving Practices.  

ERIC Educational Resources Information Center

Examined relationships among parenting practices and problem-driving practices among licensed adolescents with less than 2 years of driving experience. Found that factors significantly related to risky driving behaviors, traffic violations, and motor vehicle crashes included lower levels of parental monitoring and control, lenient parental…

Hartos, Jessica L.; Eitel, Patricia; Haynie, Denise L.; Simons-Morton, Bruce G.

2000-01-01

397

Playing-Related Musculoskeletal Problems in Child Instrumentalists: The Influence of Gender, Age and Instrument Exposure  

ERIC Educational Resources Information Center

Playing-related musculoskeletal problems (PRMP) are common in adult musicians. The limited available evidence suggests PRMP are common in children and adolescents and that risk factors may be similar. The aim of this study was to determine the prevalence of PRMP in children and adolescents and their associations with female gender, age and…

Ranelli, Sonia; Smith, Anne; Straker, Leon

2011-01-01

398

Awareness of Gambling-Related Problems, Policies and Educational Programs Among High School and College Administrators  

Microsoft Academic Search

This brief report summarizes a survey of high school and college representatives and their awareness toward gambling-related problems. The Massachusetts Council on Compulsive Gambling developed a survey instrument to review the policies and training programs of 20 high schools and 10 colleges that were located within the catchment areas of Massachusetts Department of Public Health state-sponsored gambling treatment programs. The

Howard J. Shaffer; Dana P. Forman; Kathleen M. Scanlan; Francis Smith

2000-01-01

399

Developmental Trajectories of Chinese Children's Relational and Physical Aggression: Associations with Social-Psychological Adjustment Problems  

ERIC Educational Resources Information Center

The purpose of this short-term longitudinal study was to examine Chinese children's trajectories of physical and relational aggression and their association with social-psychological adjustment problems (i.e., depressive symptoms and delinquency) and gender. Fourth and fifth grade children in Taiwan (n = 739, age 9-11) were followed across 1 year.…

Kawabata, Yoshito; Tseng, Wan-Ling; Murray-Close, Dianna; Crick, Nicki R.

2012-01-01

400

Standardized Measures of Alcohol-Related Problems: A Review of Their Use Among College Students  

Microsoft Academic Search

College students' alcohol consumption has received considerable attention in the scientific literature and the media for its impact on students and the college community. Misuse of alcohol can lead to a wide range of consequences, the most severe being alcohol abuse, dependence, and death. Researchers have struggled to develop effective methods to assess problems related to alcohol, and the literature

Loraine Devos-Comby; James E. Lange

2008-01-01

401

Perfectionism, Perceived Stress, Drinking to Cope, and Alcohol-Related Problems among College Students  

ERIC Educational Resources Information Center

This study investigated the association between perfectionism (categorized by adaptive perfectionistic, maladaptive perfectionistic, or nonperfectionistic groups), perceived stress, drinking alcohol to cope, and alcohol-related problems in a large sample of college students (N = 354). Maladaptive perfectionists reported significantly higher levels…

Rice, Kenneth G.; Van Arsdale, Amy C.

2010-01-01

402

Truancy, Alcohol Use and Alcohol-Related Problems in Secondary School Pupils in Norway  

ERIC Educational Resources Information Center

This study focuses on a vulnerable group of pupils often missed by mainstream school surveys. It explores alcohol use and alcohol-related problems for a sample of truants of secondary school age, comparing behaviours with a school-based sample from the same geographical area. Analyses are based on a survey among truants (n = 107) and a school…

Mounteney, J.; Haugland, S.; Skutle, A.

2010-01-01

403

Mothers' Predictions of Their Son's Executive Functioning Skills: Relations to Child Behavior Problems  

ERIC Educational Resources Information Center

This study examined mothers' ability to accurately predict their sons' performance on executive functioning tasks in relation to the child's behavior problems. One-hundred thirteen mothers and their 4-7 year old sons participated. From behind a one-way mirror, mothers watched their sons perform tasks assessing inhibition and planning skills.…

Johnston, Charlotte

2011-01-01

404

How number line estimation skills relate to neural activations in single digit subtraction problems.  

PubMed

The Number Line (NL) task requires judging the relative numerical magnitude of a number and estimating its value spatially on a continuous line. Children's skill on this task has been shown to correlate with and predict future mathematical competence. Neurofunctionally, this task has been shown to rely on brain regions involved in numerical processing. However, there is no direct evidence that performance on the NL task is related to brain areas recruited during arithmetical processing and that these areas are domain-specific to numerical processing. In this study, we test whether 8- to 14-year-old's behavioral performance on the NL task is related to fMRI activation during small and large single-digit subtraction problems. Domain-specific areas for numerical processing were independently localized through a numerosity judgment task. Results show a direct relation between NL estimation performance and the amount of the activation in key areas for arithmetical processing. Better NL estimators showed a larger problem size effect than poorer NL estimators in numerical magnitude (i.e., intraparietal sulcus) and visuospatial areas (i.e., posterior superior parietal lobules), marked by less activation for small problems. In addition, the direction of the activation with problem size within the IPS was associated with differences in accuracies for small subtraction problems. This study is the first to show that performance in the NL task, i.e. estimating the spatial position of a number on an interval, correlates with brain activity observed during single-digit subtraction problem in regions thought to be involved in numerical magnitude and spatial processes. PMID:25497398

Berteletti, I; Man, G; Booth, J R

2015-02-15

405

Quality.  

ERIC Educational Resources Information Center

This issue of the Coordinator's Notebook focuses on the quality of Early Childhood Care and Development (ECCD) programs. The bulk of the issue is devoted to an article "Quality in ECCD: Everyone's Concern" (Judith Evans), which reviews the need for a definition of high quality in ECCD programs and discusses how diverse stakeholders define quality.…

Evans, Judith L.; Schaeffer, Sheldon

1996-01-01

406

Subjective and objective wine quality in Central Mediterranean in relation to large scale climate patterns  

NASA Astrophysics Data System (ADS)

Subjective wine ranking is based on three factors: appearance (eye), smell (nose) and taste (palate); this kind of subjective ranking is often preferred over that based on technical objective means. Wine quality depends on its composition, which is a function of a number of factors: grapevine variety, soil type, cultivation techniques, and climate conditions. Between them, the soil is the main fixed factor; the positive trend is determined by a combination of improved cultural techniques and of warming related to climate change; while the climate variability is the main factor in determining the year-to-year wine quality variations. Therefore, the analysis of the grape composition before harvest is crucial for establishing the quality-climate correlations. In this work, 40 years of objective and subjective wine quality data collected in Italy are analyzed in relation to the climate conditions. Results show that the year-to-year quality variation of wines produced in North and Central Italy depends on the large scale climate variability, and that the wine quality improvement in the last four decades is partially due to an increase of temperature and to a decrease of the precipitations in West and Central Mediterranean Europe (WME; CME). In addition, wine quality is positively correlated with air temperature throughout the entire active period of the grapevine; weakly negatively correlated with precipitation in spring, and well negatively correlated in summer and fall. The month-to-month composites of the NAO anomaly show that, in years of good quality wine, this anomaly is negative in late spring, oscillates around zero in summer, and is positive in early fall; while, in years of bad quality wine, it is positive in late spring and summer, and negative in early fall; i.e. its polarity has an opposite sign in spring and fall in good versus bad years. The composite seasonal maps show that good wines are produced when the spring jet stream over Atlantic diverts most of the weather perturbations towards North Europe, still providing a sufficient amount of rainwater to CME; when summer warming induced by southerly winds is balanced by the cooling induced by westerly winds; and when a positive geopotential anomaly over WME shelters CME from fall Atlantic storms. Bad quality wines are produced when the jet stream favors the intrusion of the Atlantic weather perturbations into the Mediterranean. Results suggest that the persistence of atmospheric patterns can be used as precursor for wine quality forecast.

Baldi, Marina; Dalu, John David; Dalla Marta, Anna; Orlandini, Simone; Maracchi, Gianpiero; Dalu, Giovannangelo; Grifoni, Daniele; Mancini, Marco

2013-04-01

407

Health-Related Quality of Life and Appropriateness of Knee or Hip Joint Replacement  

Microsoft Academic Search

Background: We studied the association between ex- plicit appropriateness criteria for total hip joint replace- ment (THR) and total knee replacement (TKR) with changes in health-related quality of life of patients un- dergoing these procedures. Methods: Prospective observational study of 1576 con- secutive patients with diagnoses of osteoarthritis on wait- ing lists to undergo THR or TKR. Explicit appropriate- ness

Jose M. Quintana; Antonio Escobar; Inmaculada Arostegui; Amaia Bilbao; Jesus Azkarate; J. Ignacio Goenaga; Juan C. Arenaza

2006-01-01

408

Dissonance in Experience of Teaching and Its Relation to the Quality of Student Learning.  

ERIC Educational Resources Information Center

Examined dissonant forms of teaching and their relation to student learning. Found that in units of study, students report a higher quality learning experience (deep approaches), and the relationships between approaches to teaching and perceptions of the teaching context are consonant and coherent for the more senior teachers. In units of study in…

Prosser, Michael; Ramsden, Paul; Trigwell, Keith; Martin, Elaine

2003-01-01

409

Psychometric considerations in evaluating health-related quality of life measures  

Microsoft Academic Search

How does one determine if a measure of health-related quality of life (HRQL) is adequate for clinical trials? Psychometric methods are frequently used to answer this question. What is psychometrics all about? In this paper we address these questions, discussing common psychometric evaluation procedures applied to HRQL measures. Specifically, we discuss issues regarding the evaluation of reliability and validity (including

R. D. Hays; R. Anderson; D. Revicki

1993-01-01

410

Coping with Recurrent Breast Cancer: Predictors of Distressing Symptoms and Health-Related Quality of Life  

Microsoft Academic Search

Little is known about how postmenopausal women with recurrent breast cancer cope with distressing symptoms and which factors predict health-related quality of life (HRQOL). In the present study, 56 consecutively enrolled patients completed questionnaires measuring symptom occurrence, coping capacity, coping efforts, and HRQOL at the time of recurrence. Results from this study illustrate that women with recurrent breast cancer suffer

Elisabeth Kenne Sarenmalm; Joakim Öhlén; Tommy Jonsson; Fannie Gaston-Johansson

2007-01-01

411

A review of health-related quality-of-life concepts and measures for Parkinson's disease  

Microsoft Academic Search

Parkinson's disease affects individuals' health-related quality of life (HQL). Including standardized HQL assessments in therapeutic clinical trials will broaden our understanding of treatment efficacy. Selecting appropriate HQL measures for clinical studies requires consideration of their comprehensiveness, psychometric properties and feasibility. To facilitate selection, this manuscript reviews the HQL areas affected by Parkinson's disease and available Parkinson's disease-specific HQL measures: the

Anne M. Damiano; Claire Snyder; Bim Strausser; Mary Kaye Willian

1999-01-01

412

Air Quality Criteria for Ozone and Related Photochemical Oxidants (Second External Review Draft)  

EPA Science Inventory

This second external review draft of the Air Quality Criteria for Ozone and Related Photochemical Oxidants, Volumes I-III (Ozone Criteria Document) is being released for public comment and for review by EPA's Clean Air Scientific Advisory Committee (CASAC) r...

413

Rural-Urban Disparities in Health-Related Quality of Life within Disease Categories of Veterans  

ERIC Educational Resources Information Center

Context: Compared to their urban counterparts, rural veterans have been found to have lower health-related quality of life. Purpose: To determine whether these disparities persist when examining disease categories of rural and urban veterans. Methods: We obtained survey data on 748,216 veterans who were current or anticipated Veterans Health…

Weeks, William B.; Wallace, Amy E.; Wang, Stanley; Lee, Austin; Kazis, Lewis E.

2006-01-01

414

The severity of vertebral fractures and health-related quality of life in osteoporotic postmenopausal women  

Microsoft Academic Search

Vertebral fractures are the hallmark of osteoporosis, responsible for increased back pain, impairment of mobility and functional limitations. These factors have an impact on patients’ health-related quality of life (QOL). The aim of this study was to assess QOL, using QUALEFFO, in osteoporotic postmenopausal women, according to the number and the severity of the vertebral fractures. A group of 629

J. Fechtenbaum; C. Cropet; S. Kolta; S. Horlait; P. Orcel; C. Roux

2005-01-01

415

Health-Related Quality of Life in the Family Caregivers of Stroke Survivors  

ERIC Educational Resources Information Center

The objective of this cross-sectional study was to identify the factors associated with health-related quality of life (HRQOL) of family caregivers of Chinese stroke patients. One hundred and twenty-three stroke patients consecutively admitted to a stroke clinic and their 123 family caregivers were recruited. The caregivers' HRQOLs were assessed…

Chen, Yangkun

2010-01-01

416

Adult Day Health Center Participation and Health-Related Quality of Life  

ERIC Educational Resources Information Center

Purpose: The purpose of this study was to assess the association between Adult Day Health Center (ADHC) participation and health-related quality of life. Design and Methods: Case-controlled prospective study utilizing the Medical Outcomes Survey Form 36 (SF-36) to compare newly enrolled participants from 16 ADHC programs with comparable…

Schmitt, Eva M.; Sands, Laura P.; Weiss, Sara; Dowling, Glenna; Covinsky, Kenneth

2010-01-01

417

Health-Related Quality of Life in People with Severe Aphasia  

ERIC Educational Resources Information Center

Background: Health-related quality of life (HRQL) measures are increasingly used to help us understand the impact of disease or disability on a person's life and to measure the effectiveness of interventions. A small number of studies have looked at perceived HRQL in people with mild or moderate aphasia. They report that reduced HRQL is associated…

Hilari, Katerina; Byng, Sally

2009-01-01

418

A systematic review of studies measuring health-related quality of life of general injury populations  

Microsoft Academic Search

BACKGROUND: It is important to obtain greater insight into health-related quality of life (HRQL) of injury patients in order to document people's pathways to recovery and to quantify the impact of injury on population health over time. We performed a systematic review of studies measuring HRQL in general injury populations with a generic health state measure to summarize existing knowledge.

Suzanne Polinder; Juanita A Haagsma; Eefje Belt; Ronan A Lyons; Vicki Erasmus; Johan Lund; Ed F van Beeck

2010-01-01

419

Critical Review of Generic and Dermatology-Specific Health-Related Quality of Life Instruments  

Microsoft Academic Search

The measurement of health-related quality of life (HRQOL) is increasingly important in patients with skin diseases. Despite the availability of a variety of instruments and new psychometric techniques, there is no consensus as to which HRQOL instruments are to be preferred in dermatology. The objective of this review is to evaluate the generic HRQOL measures (i.e., health profiles) that have

Hilde Both; Marie-Louise Essink-Bot; Jan Busschbach; Tamar Nijsten

2007-01-01

420

AD/HD Health Related Quality of Life Questionnaire Completed by Children or Adolescents  

ERIC Educational Resources Information Center

Assessing health-related quality of life (HQOL) for children or adolescents with attention-deficit/hyperactivity disorder (AD/HD) to corroborate a diagnosis and monitor treatment outcomes, is usually relegated to parent, teacher and physician observation of the child/adolescent. Allowing adults to act as proxy reporters for children/adolescents…

Erickson, Deborah; Clarke, Simon; Kohn, Michael

2010-01-01

421

Relations between Parenting Quality and Cognitive Performance of Children Experiencing Varying Amounts of Childcare  

ERIC Educational Resources Information Center

Associations between parenting quality and 3-year-olds' school readiness, receptive, and expressive language were examined in relation to the amount of time they spent in childcare, based on data from the NICHD Study of Early Child Care and Youth Development (N = 1,364). Associations for school readiness and receptive language were stronger among…

Adi-Japha, Esther; Klein, Pnina S.

2009-01-01

422

Symptom Management and Health-Related Quality of Life Steering Committee  

Cancer.gov

The Symptom Management and Health-Related Quality of Life (SxQOL) Steering Committee (SC) was established in April 2006. The core committee membership includes representatives from the NCI Community Oncology Research Program (NCORP) Research Bases, R01 investigators, community oncologists, biostatisticians, patient advocates, and NCI Staff.

423

Factors Influencing Health-Related Quality of Life of Overweight and Obese Children in South Korea  

ERIC Educational Resources Information Center

The purpose of this study was to identify factors influencing health-related quality of life (HRQoL) of overweight and obese children in Korea. This study employed a cross-sectional descriptive study design. A total of 132 overweight and obese children participated in the study. Anthropometric measurements included body mass index, percent body…

Kim, Hee Soon; Park, Jiyoung; Ma, Yumi; Ham, Ok Kyung

2013-01-01

424

Health-Related Quality of Life and Health-Promoting Behaviors in Black Men  

ERIC Educational Resources Information Center

This study examined the health-related quality of life and health-promoting behaviors in a convenience sample of low-income black men. Almost three-fourths reported their overall health as good or better. However, the mean number of recent (that is, past 30 days) mentally unhealthy days was 13.12, and more than half reported frequent (greater than…

Calvert, Wilma J.; Isaac,, E. Paulette; Johnson, Sharon

2012-01-01

425

Influences of Risk Behaviors on the Quality of Peer Relations in Adolescence  

Microsoft Academic Search

The majority of young people experiment with alcohol use, smoking, drug use, and delinquency. In order to understand why adolescents are engaged in potential risk behaviors, it is important to look at the functions of these behaviors for adolescents' social and personal functioning. In this study, we examined whether substance use, transgressive behavior, and delinquency are related to the quality

Rutger C. M. E. Engels; Tom ter Bogt

2001-01-01

426

A Longitudinal Analysis of Rural and Urban Veterans' Health-Related Quality of Life  

ERIC Educational Resources Information Center

Context: Cross-sectional studies have identified rural-urban disparities in veterans' health-related quality-of-life (HRQOL) scores. Purpose: To determine whether longitudinal analyses confirmed that these disparities in veterans' HRQOL scores persisted. Methods: We obtained data from the SF-12 portion of the veterans health administration's…

Wallace, Amy E.; Lee, Richard; MacKenzie, Todd A.; West, Alan N.; Wright, Steven; Booth, Brenda M.; Hawthorne, Kara; Weeks, William B.

2010-01-01

427

The Work-Related Quality of Life Scale for Higher Education Employees  

ERIC Educational Resources Information Center

Previous research suggests that higher education employees experience comparatively high levels of job stress. A range of instruments, both generic and job-specific, has been used to measure stressors and strains in this occupational context. The Work-related Quality of Life (WRQoL) scale is a measure designed to capture perceptions of the working…

Edwards, Julian A.; Van Laar, Darren; Easton, Simon; Kinman, Gail

2009-01-01

428

Cortisol Levels of Caregivers in Child Care Centers as Related to the Quality of their Caregiving  

ERIC Educational Resources Information Center

The present study examined whether stress in professional caregivers--as reflected in salivary cortisol levels--is related to the quality of their caregiving behavior. The 221 professional female caregivers in 64 child care centers were observed in three different situations and saliva samples were taken three times during the morning. Results…

de Schipper, Elles J.; Riksen-Walraven, J. Marianne; Geurts, Sabine A. E.; de Weerth, Carolina

2009-01-01

429

Quality of Life, Disability, and Body Mass Index Are Related in Obese Patients  

ERIC Educational Resources Information Center

The aim of this study is to analyze the relationship between health-related quality of life (QoL), disability, and degree of obesity. Adult obese patients (BMI greater than 30) were consecutively enrolled in this cross-sectional observational study. The WHO Disability Assessment Schedule (WHO-DAS II) and the short version of the impact of weight…

Sirtori, Anna; Brunani, Amelia; Liuzzi, Antonio; Pasqualinotto, Lucia; Villa, Valentina; Leonardi, Matilde; Raggi, Alberto

2011-01-01

430

Health-related quality of life in overweight youth in the Delta  

Technology Transfer Automated Retrieval System (TEKTRAN)

Purpose: Poor health-related quality of life (HRQOL) is associated with overweight youth seen in clinic settings. However, community-based samples have found more variability in HRQOL, possibly due to sociocultural differences. The Delta Nutrition Research Initiative (Delta NIRI) study investigates ...

431

Seeing Through OrganizationExploring the Constitutive Quality of Social Relations  

Microsoft Academic Search

This article reframes the relationship between people and organization to reveal the constitutive quality of social relations. Although agreeing with Karl Weick that organization emerges in interaction, the author theoretically integrates the work of Mary Parker Follett and Bowenian family systems theorists to go beyond Weick's focus on behaviors, examining instead the interpersonal dynamics thatfuel behavior According to this theoretical

Lisa Weinberg

1996-01-01

432

Changes in elderly women's health-related quality of life following discontinuation of hormone replacement therapy  

Microsoft Academic Search

BACKGROUND: Many women have discontinued hormone replacement therapy (HRT) in view of recent findings. The goal of this study was to determine if HRT discontinuation is associated with changes in health-related quality of life (HRQOL) in elderly women. METHODS: We studied women enrolled in Pennsylvania's Pharmaceutical Assistance Contract for the Elderly (PACE) program, linking prescription claims with data from a

Debra A Heller; Carol H Gold; Frank M Ahern; Kristine E Pringle; Theresa V Brown; Margaret R Glessner

2005-01-01

433

Effects of Transference Work in the Context of Therapeutic Alliance and Quality of Object Relations  

ERIC Educational Resources Information Center

Objective: Transference interpretation is considered as a core active ingredient in dynamic psychotherapy. In common clinical theory, it is maintained that more mature relationships, as well as a strong therapeutic alliance, may be prerequisites for successful transference work. In this study, the interaction between quality of object relations,…

Hoglend, Per; Hersoug, Anne Grete; Bogwald, Kjell-Petter; Amlo, Svein; Marble, Alice; Sorbye, Oystein; Rossberg, Jan Ivar; Ulberg, Randi; Gabbard, Glen O.; Crits-Christoph, Paul

2011-01-01

434

Health-related quality of life after laparoscopic and open nephrectomy  

Microsoft Academic Search

Background: Postoperative recovery often is assessed with parameters (pain and return to work) susceptible to bias. This study sought objectively to compare postoperative health-related quality of life (HRQL) after laparoscopic and open nephrectomy with the Postoperative Recovery (PRS) (a validated questionnaire designed to assess pain), activities of daily living (ADL), and HRQL in postoperative patients. Methods: Patients undergoing contemporaneous laparoscopic

K. T. Pace; S. J. Dyer; R. J. Stewart; R. J. Honey; E. C. Poulin; C. M. Schlachta; J. Mamazza

2003-01-01

435

Social Indicators Research and Health-Related Quality of Life Research.  

ERIC Educational Resources Information Center

The aim of this essay is to build a bridge between two intersecting areas of research, social indicators research on the one hand and health-related quality of life research on the other. The first substantive section of the paper introduces key concepts and definitions in the social indicators research tradition, e.g., social indicators,…

Michalos, Alex C.

2004-01-01

436

The nature and quality of periodontal related patient information on the world-wide web  

Microsoft Academic Search

Background The internet provides a potentially invaluable source of health education material for members of the public.Objectives This study aimed to investigate the nature and quality of periodontal-related patient information on the world-wide web.Methods The search term ' \\

I G Chestnutt

2002-01-01

437

Health-Related Quality of Life in Children and Adolescents Following Traumatic Injury: A Review  

ERIC Educational Resources Information Center

This paper comprehensively reviews the published literature investigating health-related quality of life (HRQOL) following general traumatic injury in individuals between birth and 18 years. Studies were not considered if they primarily compared medical treatment options, evaluated physical function but not other aspects of HRQOL, or focused on…

Martin-Herz, Susanne P.; Zatzick, Douglas F.; McMahon, Robert J.

2012-01-01

438

Factors Related to Oral Health-Related Quality of Life of Independent Brazilian Elderly  

PubMed Central

The aim of this cross-sectional study was to assess the factors associated with the impact of oral health on the quality of life in a sample of 504 Brazilian independent elderly. Data collection included oral examinations and structured interviews. The simplified form of the Oral Health Impact Profile (OHIP-14) was used to measure OHRQoL. Information on sociodemographic characteristics, use of dental services, and subjective measures of health was collected. Poisson regression within a hierarchical model was used to data analyses. The following variables were associated with a negative impact on OHRQoL: female gender (PR?=?1.40; CI 95%: 1.11–1.77); lower class (PR?=?1.58; CI 95%: 1.13–2.20); up to 3 occluding pairs of posterior teeth (PR?=?1.88; CI 95%: 1.13–3.14); at least one untreated caries (PR?=?1.28; CI 95%: 1.06–1.54); curative reasons for the last dental appointment (PR?=?1.52; CI 95%: 1.15–2.00); poor self-perception of oral health (PR?=?2.49; CI 95%: 1.92–3.24); and poor perception of dental care provided (PR?=?1.34; CI 95%: 1.12–1.59). The younger elderly also noticed this negative impact. These findings showed that the clinical, sociodemographic, and subjective factors evaluated exerted a negative impact on OHRQoL in elderly people. Health authorities must address all these factors when planning interventions on oral health for this population. PMID:23533414

Ulinski, Karla Giovana Bavaresco; do Nascimento, Mariele Andrade; Lima, Arinilson Moreira Chaves; Benetti, Ana Raquel; Poli-Frederico, Regina Célia; Fernandes, Karen Barros Parron; Fracasso, Marina Lourdes Calvo; Maciel, Sandra Mara

2013-01-01

439

Health related quality of life after extremely preterm birth: a matched controlled cohort study  

Microsoft Academic Search

BACKGROUND: The majority of infants born before the last trimester now grow up. However, knowledge on subsequent health related quality of life (HRQoL) is scarce. We therefore aimed to compare HRQoL in children born extremely preterm with control children born at term. Furthermore, we assessed HRQoL in relation to perinatal and neonatal morbidity and to current clinical and sociodemographic characteristics.

Bente J Vederhus; Trond Markestad; Geir E Eide; Marit Graue; Thomas Halvorsen

2010-01-01

440

Can parents rate their child's health-related quality of life? Results of a systematic review  

Microsoft Academic Search

A systematic review was conducted to determine the relationship between ratings of children's health-related quality of life\\u000a (HRQoL) made by parents and children. This was investigated in relation to four questions:- is agreement greater for some\\u000a domains (e.g. physical HRQoL) than others?; do parents perceive illness to have a greater impact than their child?; how is\\u000a agreement affected by child

Christine Eiser; Rachel Morse

2001-01-01

441

Vision-related quality of life in first stroke patients with homonymous visual field defects  

Microsoft Academic Search

BACKGROUND: To evaluate vision-related and health-related quality of life (VRQoL, HRQoL) in first stroke patients with homonymous visual field defects (VFD) with respect to the extent of the lesion. Since VFD occur in approximately 10% of stroke patients the main purpose of the study was to investigate the additional impact of VFD in stroke patients hypothesizing that VFD causes diminished

Carolin Gall; Gabriele H Franke; Bernhard A Sabel

2010-01-01

442

Caregiver burden and health-related quality of life among Japanese stroke caregivers  

Microsoft Academic Search

Objective: the present study had two main purposes: 1. To examine the relationship between caregiver burden and health-related quality of life in family caregivers of older stroke patients in Japan; and 2. To examine which characteristics of the caregiving situation significantly relate to increased burden. Methods: subjects (n=100) were recruited from seven randomly selected neurological hospitals with out-patient rehabilitation clinics

TOMOKO MORIMOTO; S. SCHREINER; H ITOSHI ASANO

2003-01-01

443

Satellite remote sensing of particulate matter air quality: the cloud-cover problem.  

PubMed

Satellite assessments of particulate matter (PM) air quality that use solar reflectance methods are dependent on availability of clear sky; in other words, mass concentrations of PM less than 2.5 microm in aerodynamic diameter (PM2.5) cannot be estimated from satellite observations under cloudy conditions or bright surfaces such as snow/ice. Whereas most ground monitors measure PM2.5 concentrations on an hourly basis regardless of cloud conditions, space-borne sensors can only estimate daytime PM2.5 in cloud-free conditions, therefore introducing a bias. In this study, an estimate of this clear-sky bias is provided from monthly to yearly time scales over the continental United States. One year of the Moderate Resolution Imaging Spectroradiometer (MODIS) 550-nm aerosol optical depth (AOD) retrievals from Terra and Aqua satellites, collocated with 371 U.S. Environmental Protection Agency (EPA) ground monitors, have been analyzed. The results indicate that the mean differences between PM2.5 reported by ground monitors and PM2.5 calculated from ground monitors during the satellite overpass times during cloud-free conditions are less than +/- 2.5 microg m(-3), although this value varies by season and location. The mean differences are not significant as calculated by t tests (alpha = 0.05). On the basis of this analysis, it is concluded that for the continental United States, cloud cover is not a major problem for inferring monthly to yearly PM2.5 from space-borne sensors. PMID:20480859

Christopher, Sundar A; Gupta, Pawan

2010-05-01

444

On the existence of the relative equilibria of a rigid body in the J 2 problem  

NASA Astrophysics Data System (ADS)

The motion of a point mass in the J 2 problem has been generalized to that of a rigid body in a J 2 gravity field for new high-precision applications in the celestial mechanics and astrodynamics. Unlike the original J 2 problem, the gravitational orbit-rotation coupling of the rigid body is considered in the generalized problem. The existence and properties of both the classical and non-classical relative equilibria of the rigid body are investigated in more details in the present paper based on our previous results. We nondimensionalize the system by the characteristic time and length to make the study more general. Through the study, it is found that the classical relative equilibria can always exist in the real physical situation. Numerical results suggest that the non-classical relative equilibria only can exist in the case of a negative J 2, i.e., the central body is elongated; they cannot exist in the case of a positive J 2 when the central body is oblate. In the case of a negative J 2, the effect of the orbit-rotation coupling of the rigid body on the existence of the non-classical relative equilibria can be positive or negative, which depends on the values of J 2 and the angular velocity ? e . The bifurcation from the classical relative equilibria, at which the non-classical relative equilibria appear, has been shown with different parameters of the system. Our results here have given more details of the relative equilibria than our previous paper, in which the existence conditions of the relative equilibria are derived and primarily studied. Our results have also extended the previous results on the relative equilibria of a rigid body in a central gravity field by taking into account the oblateness of the central body.

Wang, Yue; Xu, Shijie; Tang, Liang

2014-10-01

445

Evaluating the impact of wind turbine noise on health-related quality of life.  

PubMed

We report a cross-sectional study comparing the health-related quality of life (HRQOL) of individuals residing in the proximity of a wind farm to those residing in a demographically matched area sufficiently displaced from wind turbines. The study employed a nonequivalent comparison group posttest-only design. Self-administered questionnaires, which included the brief version of the World Health Organization quality of life scale, were delivered to residents in two adjacent areas in semirural New Zealand. Participants were also asked to identify annoying noises, indicate their degree of noise sensitivity, and rate amenity. Statistically significant differences were noted in some HRQOL domain scores, with residents living within 2 km of a turbine installation reporting lower overall quality of life, physical quality of life, and environmental quality of life. Those exposed to turbine noise also reported significantly lower sleep quality, and rated their environment as less restful. Our data suggest that wind farm noise can negatively impact facets of HRQOL. PMID:21959113

Shepherd, Daniel; McBride, David; Welch, David; Dirks, Kim N; Hill, Erin M

2011-01-01

446

Relative importance of male and territory quality in pairing success of male rock ptarmigan (Lagopus mutus)  

USGS Publications Warehouse

We studied pairing success in male rock ptarmigan (Lagopus mutus) in northern Alaska to learn whether males obtaining more females possessed phenotypic traits that influenced female choice directly, whether these traits permitted males to obtain territories favored by females, or whether both processes occurred. The number of females per male varied from zero to three. Several male and territory traits were significantly correlated with number of females per male. We used multiple regression to obtain a single measure of male quality and a single measure of territory quality. These measures of male and territory quality correlated with each other and with male pairing success. We used path analysis to separate direct effects of male quality on pairing success from indirect effects due to high-quality males obtaining high-quality territories. Both direct and indirect pathways had significant effects on pairing success, and direct and indirect effects of male traits on pairing success were about equal. This study illustrates an analytical approach for estimating the relative importance of direct and indirect causal relationships in natural systems.

Bart, Jonathan; Earnst, Susan L.

1999-01-01

447

Relations between Parent Psychopathology, Family Functioning, and Adolescent Problems in Substance-Abusing Families: Disaggregating the Effects of Parent Gender  

ERIC Educational Resources Information Center

The present study: (1) examined relations between parent psychopathology and adolescent internalizing problems, externalizing problems, and substance use in substance-abusing families; and (2) tested family functioning problems as mediators of these relations. Structural equation modeling was used to estimate the independent effects of parent…

Burstein, Marcy; Stanger, Catherine; Dumenci, Levent

2012-01-01

448

Which tinnitus-related aspects are relevant for quality of life and depression: results from a large international multicentre sample  

PubMed Central

Background The aim of the present study was to investigate, which aspects of tinnitus are most relevant for impairment of quality of life. For this purpose we analysed how responses to the Tinnitus Handicap Inventory (THI) and to the question “How much of a problem is your tinnitus at present” correlate with the different aspects of quality of life and depression. Methods 1274 patients of the Tinnitus Research Initiative database were eligible for analysis. The Tinnitus Research Initiative database is composed of eight study centres from five countries. We assessed to which extent the Tinnitus Handicap Inventory (THI) and its subscales and single items as well as the tinnitus severity correlate with Beck Depression Inventory (BDI) score and different domains of the short version of the WHO-Quality of Life questionnaire (WHO-QoL Bref) by means of simple and multiple linear regression models. Results The THI explained considerable portions of the variance of the WHO-QoL Physical Health (R2?=?0.39) and Psychological Health (R2?=?0.40) and the BDI (R2?=?0.46). Furthermore, multiple linear regression models which included each THI item separately explained an additional 5% of the variance compared to the THI total score. The items feeling confused from tinnitus, the trouble of falling asleep at night, the interference with job or household responsibilities, getting upset from tinnitus, and the feeling of being depressed were those with the highest influence on quality of life and depression. The single question with regard to tinnitus severity explained 18%, 16%, and 20% of the variance of Physical Health, Psychological Health, and BDI respectively. Conclusions In the context of a cross-sectional correlation analysis, our findings confirmed the strong and consistent relationships between self-reported tinnitus burden and both quality of life, and depression. The single question “How much of a problem is your tinnitus” reflects tinnitus-related impairment in quality of life and can thus be recommended for use in clinical routine. PMID:24422941

2014-01-01

449

Sleep quality is negatively related to video gaming volume in adults.  

PubMed

Most literature on the relationship between video gaming and sleep disturbances has looked at children and adolescents. There is little research on such a relationship in adult samples. The aim of the current study was to investigate the association of video game volume with sleep quality in adults via face-to-face interviews using standardized questionnaires. Adults (n = 844, 56.2% women), aged 18-94 years old, participated in the study. Sleep quality was measured using the Pittsburgh Sleep Quality Index, and gaming volume was assessed by asking the hours of gaming on a regular weekday (Mon-Thurs), Friday and weekend day (Sat-Sun). Adjusting for gender, age, educational level, exercise and perceived stress, results of hierarchical regression analyses indicated that video gaming volume was a significant predictor of sleep quality (? = 0.145), fatigue (? = 0.109), insomnia (? = 0.120), bedtime (? = 0.100) and rise time (? = 0.168). Each additional hour of video gaming per day delayed bedtime by 6.9 min (95% confidence interval 2.0-11.9 min) and rise time by 13.8 min (95% confidence interval 7.8-19.7 min). Attributable risk for having poor sleep quality (Pittsburgh Sleep Quality Index > 5) due to gaming >1 h day was 30%. When examining the components of the Pittsburgh Sleep Quality Index using multinomial regression analysis (odds ratios with 95% confidence intervals), gaming volume significantly predicted sleep latency, sleep efficiency and use of sleep medication. In general, findings support the conclusion that gaming volume is negatively related to the overall sleep quality of adults, which might be due to underlying mechanisms of screen exposure and arousal. PMID:25358428

Exelmans, Liese; Van den Bulck, Jan

2015-04-01

450

Health-related quality of life among Danish patients 3 and 12 months after TIA or mild stroke  

Microsoft Academic Search

AIM: This paper aimed to describe health related quality of life three and 12 months after mild stroke or transient ischemic attack, TIA, to describe the perceived changes from pre to post stroke status and to examine sociodemographic determinants for health related quality of life. METHODS: 105 patients with mild stroke or TIA delivered self reported data on health related

I. Muus; M. Petzold; K. C. Ringsberg

2010-01-01

451

Potential problems relative to TDRS/IUS tilt table elevation with failed VRCS  

NASA Technical Reports Server (NTRS)

Operational concerns and preliminary solution alternatives related to elevating the inertial upper stage/tracking and data relay satellite (IUS/TDRS) with a failed orbiter vernier reaction control system (VRCS) are presented. Problems arise from the combination of TDRS thermal constraints and tilt table constraints (the primary reaction control system (PRCS) cannot be used to hold attitude while the tilt table is being elevated), and the problems are compounded by the minimum PRCS attitude deadband. The potential solution options are affected by the launch window, flight profile, crew procedures, vehicle capability and constraints, and flight rules.

Bell, J.

1980-01-01

452

Health-related quality of life in women exposed to wood smoke while cooking.  

PubMed

Using the abbreviated World Health Organization Quality of Life (WHOQOL-Bref) questionnaire, we evaluated the effect of exposure to smoke from wood combustion while cooking on health-related quality of life (HRQL) in 85 women using wood and 85 women using liquefied petroleum gas (LPG) as cooking fuel in India. Age, years of cooking and hours spent daily in the kitchen were similar between women in the two groups. WHOQOL-Bref transformed scores in psychological, social relationships and environment domains were significantly lower in women in using wood than in those using LPG, suggesting that HRQL was impaired across domains among these women. PMID:25199018

Aggarwal, A N; Umasankar, K; Gupta, D

2014-08-01

453

Health-related quality of life measurement in oncology: Advances and opportunities.  

PubMed

The concept of health-related quality of life has a long history in the field of oncology treatment and research. We present a brief history of how the concept has evolved in oncology and the sentinel events in that process. We then focus on advances in measurement science as applied to health-related quality of life measures and argue that a compelling new set of measurement tools is now available, including brief, generic measures with good psychometric qualities (exemplified by the new PROMIS measures and the possibility of a common metric spanning all diseases). The last section of the paper turns to emerging opportunities for these measures, including in clinical trials, healthcare reform, and regulatory deliberations. Our conclusion is that health-related quality of life is more important today than it has ever been, and that the time has come for an even wider adoption of the new measures. (PsycINFO Database Record (c) 2015 APA, all rights reserved). PMID:25730723

Cella, David; Stone, Arthur A

2015-01-01

454

Impact of Problem Finding on the Quality of Authentic Open Inquiry Science Research Projects  

ERIC Educational Resources Information Center

Problem finding is a creative process whereby individuals develop original ideas for study. Secondary science students who successfully participate in authentic, novel, open inquiry studies must engage in problem finding to determine viable and suitable topics. This study examined problem finding strategies employed by students who successfully…

LaBanca, Frank

2008-01-01

455

Impact of problem finding on the quality of authentic open inquiry science research projects  

Microsoft Academic Search

Problem finding is a creative process whereby individuals develop original ideas for study. Secondary science students who successfully participate in authentic, novel, open inquiry studies must engage in problem finding to determine viable and suitable topics. This study examined problem finding strategies employed by students who successfully completed and presented the results of their open inquiry research at the 2007

Frank Labanca

2008-01-01

456

The Mediating Role of Rumination in the Relation between Quality of Attachment Relations and Depressive Symptoms in Non-Clinical Adolescents  

ERIC Educational Resources Information Center

This study examined associations between indices of the quality of attachment relationships of adolescents with parents and peers, rumination, and symptoms of depression. More specifically, a mediation model was investigated in which rumination was hypothesized to mediate the relation between quality of attachment relations and symptoms of…

Ruijten, Tamara; Roelofs, Jeffrey; Rood, Lea

2011-01-01

457

Alcohol-related problems and life satisfaction predict motivation to change among mandated college students.  

PubMed

The present study investigated the role specific types of alcohol-related problems and life satisfaction play in predicting motivation to change alcohol use. Participants were 548 college students mandated to complete a brief intervention following an alcohol-related policy violation. Using hierarchical multiple regression, we tested for the presence of interaction and quadratic effects on baseline data collected prior to the intervention. A significant interaction indicated that the relationship between a respondent's personal consequences and his/her motivation to change differs depending upon the level of concurrent social consequences. Additionally quadratic effects for abuse/dependence symptoms and life satisfaction were found. The quadratic probes suggest that abuse/dependence symptoms and poor life satisfaction are both positively associated with motivation to change for a majority of the sample; however, the nature of these relationships changes for participants with more extreme scores. Results support the utility of using a multidimensional measure of alcohol related problems and assessing non-linear relationships when assessing predictors of motivation to change. The results also suggest that the best strategies for increasing motivation may vary depending on the types of alcohol-related problems and level of life satisfaction the student is experiencing and highlight potential directions for future research. PMID:24531636

Diulio, Andrea R; Cero, Ian; Witte, Tracy K; Correia, Christopher J

2014-04-01

458

Daily mood and sleep: reciprocal relations and links with adjustment problems.  

PubMed

Children's sleep problems are common and associated with increased risk for adjustment problems. We examined daily links between children's sleep and mood, using a daily diary method and actigraphy. We also tested children's daily mood as a mediator of relations among sleep and children's broader internalizing and externalizing symptoms. A community sample of 142 children (mean age = 10.69 years; 57% girls; 69% European American, 31% African American) and their parents participated. For 1 week, children wore actigraphs and parents completed a daily telephone interview about their child's mood. Following the week of actigraphy, mothers and fathers reported on their child's adjustment. Multi-level models indicated within-person relations between children's mood and subsequent sleep fragmentation (indicated by increased activity) and sleep latency, and between-person relations between sleep latency and subsequent mood on the next day. Significant indirect effects were found such that a more negative daily mood (aggregated across diary days) mediated relations between poor sleep efficiency and longer sleep latency and parent-reported internalizing and externalizing symptoms. Findings extend previous research by highlighting disruptions to children's daily mood as a potential mechanism linking sleep problems to children's mental health. PMID:25212526

Kouros, Chrystyna D; El-Sheikh, Mona

2015-02-01

459

The Asymmetrical Quality of Psychological Internet Resources for Addressing Common versus Rare Problems.  

ERIC Educational Resources Information Center

The Internet provides a new means of obtaining psychological health care, but Internet site quality varies widely. To help in the search for reliable information in cyberspace, a ratings scale, which assesses six dimensions of site quality (accuracy, practicality, normalization, sense of belonging, referral, and feedback mechanisms) is offered…

Doran, Matt; Simonin, Danielle; Morse, Laura; Smith, Allyson; Maloney, Colleen; Wright, Cara; Underwood, Michelle; Hoppel, Andrea; O'Donnell, Shannon; Chambliss, Catherine

460

The Use of Quality Circle Techniques To Improve Problem Solving in Elementary School.  

ERIC Educational Resources Information Center

A sequentially planned program using quality circle techniques was adapted for the educational environment and Implemented in an elementary school in central Florida. The program consisted of 10 sessions designed to acquaint team leaders and administrators with the quality circle techniques and, under the direction of a trained facilitator, to…

De Candido, Linda S.

461

Problems and solutions in calculating quality-adjusted life years (QALYs)  

Microsoft Academic Search

The quality-adjusted life-year (QALY) is a measure of the value of health outcomes. Since health is a function of length of life and quality of life, the QALY was developed as an attempt to combine the value of these attributes into a single index number. The QALY calculation is simple: the change in utility value induced by the treatment is

Luis Prieto; José A Sacristán

2003-01-01