WorldWideScience

Sample records for average quality factors

  1. Gallium nitride L3 photonic crystal cavities with an average quality factor of 16 900 in the near infrared

    Energy Technology Data Exchange (ETDEWEB)

    Vico Triviño, Noelia; Carlin, Jean-François; Butté, Raphaël; Grandjean, Nicolas [Institute of Condensed Matter Physics, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne (Switzerland); Minkov, Momchil, E-mail: momchil.minkov@epfl.ch; Savona, Vincenzo [Laboratory of Theoretical Physics of Nanosystems, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne (Switzerland); Urbinati, Giulia; Galli, Matteo [Dipartimento di Fisica, Università di Pavia, via Bassi 6, 27100 Pavia (Italy)

    2014-12-08

    Photonic crystal point-defect cavities were fabricated in a GaN free-standing photonic crystal slab. The cavities are based on the popular L3 design, which was optimized using an automated process based on a genetic algorithm, in order to maximize the quality factor. Optical characterization of several individual cavity replicas resulted in an average unloaded quality factor Q = 16 900 at the resonant wavelength λ∼1.3 μm, with a maximal measured Q value of 22 500. The statistics of both the quality factor and the resonant wavelength are well explained by first-principles simulations including fabrication disorder and background optical absorption.

  2. Technological progress and average job matching quality

    OpenAIRE

    Centeno, Mário; Corrêa, Márcio V.

    2009-01-01

    Our objective is to study, in a labor market characterized by search frictions, the effect of technological progress on the average quality of job matches. For that, we use an extension of Mortensen and Pissarides (1998) and obtain as results that the effects of technological progress on the labor market depend upon the initial conditions of the economy. If the economy is totally characterized by the presence of low-quality job matches, an increase in technological progress is accompanied by ...

  3. Technological progress and average job matching quality

    Directory of Open Access Journals (Sweden)

    Mário Centeno

    2009-12-01

    Full Text Available Our objective is to study, in a labor market characterized by search frictions, the effect of technological progress on the average quality of job matches. For that, we use an extension of Mortensen and Pissarides (1998 and obtain as results that the effects of technological progress on the labor market depend upon the initial conditions of the economy. If the economy is totally characterized by the presence of low-quality job matches, an increase in technological progress is accompanied by an increase in the quality of jobs. In turn, if the economy is totally characterized by the presence of high-quality job matches, an increase in the technological progress rate implies the reverse effect. Finally, if the economy is totally characterized by the presence of very high-quality jobs, an increase in the technological progress rate implies an increase in the average quality of the job matches.O objetivo deste artigo é o de estudar, em um mercado de trabalho caracterizado por fricções, os efeitos do progresso tecnológico sobre a qualidade média das parcerias produtivas. Para tal, utilizamos uma extensão do modelo de Mortensen and Pissarides (1998 e obtivemos, como resultados, que os efeitos de variações na taxa de progresso tecnológico sobre o mercado de trabalho dependerão das condições da economia. Se a economia for totalmente caracterizada pela presença de parcerias produtivas de baixa qualidade, um aumento na taxa de progresso tecnológico vem acompanhado por um aumento na qualidade médias das parcerias produtivas. Por sua vez, se a economia for totalmente caracterizada pela presença de parcerias produtivas de alta qualidade, um aumento na taxa de progresso tecnológico gera um efeito inverso. Finalmente, se a economia for totalmente caracterizada pela presença de parcerias produtivas de muito alta qualidade, um aumento na taxa de progresso tecnológico virá acompanhado de uma elevação na qualidade média dos empregos.

  4. ANALYSIS OF THE FACTORS AFFECTING THE AVERAGE

    Directory of Open Access Journals (Sweden)

    Carmen BOGHEAN

    2013-12-01

    Full Text Available Productivity in agriculture most relevantly and concisely expresses the economic efficiency of using the factors of production. Labour productivity is affected by a considerable number of variables (including the relationship system and interdependence between factors, which differ in each economic sector and influence it, giving rise to a series of technical, economic and organizational idiosyncrasies. The purpose of this paper is to analyse the underlying factors of the average work productivity in agriculture, forestry and fishing. The analysis will take into account the data concerning the economically active population and the gross added value in agriculture, forestry and fishing in Romania during 2008-2011. The distribution of the average work productivity per factors affecting it is conducted by means of the u-substitution method.

  5. Average spreading and beam quality evolution of Gaussian array beams propagating through oceanic turbulence

    International Nuclear Information System (INIS)

    Zhi, Dong; Chen, Yizhu; Tao, Rumao; Ma, Yanxing; Zhou, Pu; Si, Lei

    2015-01-01

    The propagation properties of a radial Gaussian beam array through oceanic turbulence are studied analytically. The analytical expressions for the average intensity and the beam quality (power-in-the-bucket (PIB) and M 2 -factor) of a radial beam array in a turbulent ocean are derived based on an account of statistical optics methods, the extended Huygens-Fresnel principle, and the second order moments of the Wigner distribution function. The influences of w, ε, and χ T on the average intensity are investigated. The array divergence increases and the laser beam spreads as the salinity-induced dominant, ε decreased, and χ T increased. Further, the analytical expression of PIB and the M 2 -factor in the target plane is obtained. The changes of PIB and the M 2 -factor with three oceanic turbulence parameters indicate that the stronger turbulence with a larger w, smaller ε, and larger χ T results in the value of PIB decreasing, the value of the M 2 -factor increasing, and the beam quality degrading. (letter)

  6. A main factors affecting average number of teats in pigs

    Directory of Open Access Journals (Sweden)

    Emil Krupa

    2016-09-01

    Full Text Available The influence of factors (breed, year and season of farrowing, herd, parity order, sire of litter, total number of born piglets - TNB, number of piglets born alive - NBA, number of weaned piglets - NW, and linear and quadratic regression on the number of teats, found for all piglets in the litter till ten days after born, expressed as arithmetic mean for each litter as sum of all teats number of each piglet in appropriate litter divided by number of piglets in this litter at first litter (ANT1 and second and subsequent litters (ANT2+ were analysed. The coefficient of determination was 0.46 and 0.33 for ANT1 and ANT2+, respectively. The statistically high influence (P<0.001 on ANT1 and ANT2+ was determined for year and season of farrowing, herd, parity order (only for ANT2+ and sire of litter effects. Impact of breed was found only on ANT2+ (P<0.001. The rest of factors have negligible of no impact on traits. Based on the data available for analyses, obtained results will serve as a relevant set-up in developing the model for genetic evaluation for these traits.

  7. A Dependence between Average Call Duration and Voice Transmission Quality: Measurement and applications

    NARCIS (Netherlands)

    Holub, J.; Beerends, J.G.; Smid, R.

    2004-01-01

    This contribution deals with the estimation of the relation between speech transmission quality and average call duration for a given network and portfolio of customers. It uses non-intrusive speech quality measurements on live speech calls. The basic idea behind this analysis is an expectation that

  8. Neutron quality factor

    International Nuclear Information System (INIS)

    1995-06-01

    Both the International Commission on Radiological Protection (ICRP) and the National Council on Radiation Protection and Measurements (NCRP) have recommended that the radiation quality weighting factor for neutrons (Q n , or the corresponding new modifying factor, w R ) be increased by a value of two for most radiation protection practices. This means an increase in the recommended value for Q n from a nominal value of 10 to a nominal value of 20. This increase may be interpreted to mean that the biological effectiveness of neutrons is two times greater than previously thought. A decision to increase the value of Q n will have a major impact on the regulations and radiation protection programs of Federal agencies responsible for the protection of radiation workers. Therefore, the purposes of this report are: (1) to examine the general concept of open-quotes quality factorclose quotes (Q) in radiation protection and the rationale for the selection of specific values of Q n ; and (2) to make such recommendations to the Federal agencies, as appropriate. This report is not intended to be an exhaustive review of the scientific literature on the biological effects of neutrons, with the aim of defending a particular value for Q n . Rather, the working group examined the technical issues surrounding the current recommendations of scientific advisory bodies on this matter, with the aim of determining if these recommendations should be adopted by the Federal agencies. Ultimately, the group concluded that there was no compelling basis for a change in Q n . The report was prepared by Federal scientists working under the auspices of the Science Panel of the Committee on Interagency Radiation Research and Policy Coordination (CIRRPC)

  9. Factors Influencing Healthcare Service Quality

    OpenAIRE

    Ali Mohammad Mosadeghrad

    2014-01-01

    Background The main purpose of this study was to identify factors that influence healthcare quality in the Iranian context. Methods Exploratory in-depth individual and focus group interviews were conducted with 222 healthcare stakeholders including healthcare providers, managers, policy-makers, and payers to identify factors affecting the quality of healthcare services provided in Iranian healthcare organisations. Results Quality in healthcare is a production o...

  10. Exponentially Weighted Moving Average Chart as a Suitable Tool for Nuchal Translucency Quality Review

    Czech Academy of Sciences Publication Activity Database

    Hynek, M.; Smetanová, D.; Stejskal, D.; Zvárová, Jana

    2014-01-01

    Roč. 34, č. 4 (2014), s. 367-376 ISSN 0197-3851 Institutional support: RVO:67985807 Keywords : nuchal translucency * exponentially weighted moving average model * statistics Subject RIV: BB - Applied Statistics, Operational Research Impact factor: 3.268, year: 2014

  11. State Averages

    Data.gov (United States)

    U.S. Department of Health & Human Services — A list of a variety of averages for each state or territory as well as the national average, including each quality measure, staffing, fine amount and number of...

  12. Wood quality of Eucalyptus grandis dominant and average trees submitted to drying

    Directory of Open Access Journals (Sweden)

    Joel Telles de Souza

    2012-03-01

    Full Text Available This study determined, in trees of dominant and average diameter, the influence of air seasoning followed by kiln drying in the sawn wood quality of 14 years old stand of Eucalyptus grandis W. Hill ex Maiden, located in Capivari do Sul municipality, state of Rio Grande do Sul. The sampling of trees was performed after a pilot inventory on the basis of the dominant and average diameter at breast height (DBH. After cutting down the trees, there were selected the logs located between the DBH and 25% of commercial height. The logs were then sawn using into boards that were submitted to air seasoning from green up to 18% of moisture content, followed by kiln drying until 13% of moisture content. End checking and board crook were evaluate after sawing, following air seasoning and kiln drying. The results indicate that, both for dominant and average trees, end checking and board crook were not influenced by different wood process stage. However, the contrast between dominant and average trees shows that the magnitude of defects is higher in the average trees.

  13. The Average Age of Menopause and Its Associated Factors Among Women in Tehran

    Directory of Open Access Journals (Sweden)

    F. Jafari

    2013-05-01

    Conclusion: With regard to life expectancy, women spend approximately one third of their life after menopause. Identification of factors associated with these issue particularly aspects of quality of life is important.

  14. Factors influencing bone scan quality

    International Nuclear Information System (INIS)

    Adams, F.G.; Shirley, A.W.

    1983-01-01

    A reliable subjective method of assessing bone scan quality is described. A large number of variables which theoretically could influence scan quality were submitted to regression and factor analysis. Obesity, age, sex and abnormality of scan were found to be significant but weak variables. (orig.)

  15. Factors Influencing Healthcare Service Quality

    Directory of Open Access Journals (Sweden)

    Ali Mohammad Mosadeghrad

    2014-07-01

    Full Text Available Background The main purpose of this study was to identify factors that influence healthcare quality in the Iranian context. Methods Exploratory in-depth individual and focus group interviews were conducted with 222 healthcare stakeholders including healthcare providers, managers, policy-makers, and payers to identify factors affecting the quality of healthcare services provided in Iranian healthcare organisations. Results Quality in healthcare is a production of cooperation between the patient and the healthcare provider in a supportive environment. Personal factors of the provider and the patient, and factors pertaining to the healthcare organisation, healthcare system, and the broader environment affect healthcare service quality. Healthcare quality can be improved by supportive visionary leadership, proper planning, education and training, availability of resources, effective management of resources, employees and processes, and collaboration and cooperation among providers. Conclusion This article contributes to healthcare theory and practice by developing a conceptual framework that provides policy-makers and managers a practical understanding of factors that affect healthcare service quality.

  16. Factors That Predict Marijuana Use and Grade Point Average among Undergraduate College Students

    Science.gov (United States)

    Coco, Marlena B.

    2017-01-01

    The purpose of this study was to analyze factors that predict marijuana use and grade point average among undergraduate college students using the Core Institute national database. The Core Alcohol and Drug Survey was used to collect data on students' attitudes, beliefs, and experiences related to substance use in college. The sample used in this…

  17. Can a combination of average of normals and "real time" External Quality Assurance replace Internal Quality Control?

    Science.gov (United States)

    Badrick, Tony; Graham, Peter

    2018-03-28

    Internal Quality Control and External Quality Assurance are separate but related processes that have developed independently in laboratory medicine over many years. They have different sample frequencies, statistical interpretations and immediacy. Both processes have evolved absorbing new understandings of the concept of laboratory error, sample material matrix and assay capability. However, we do not believe at the coalface that either process has led to much improvement in patient outcomes recently. It is the increasing reliability and automation of analytical platforms along with improved stability of reagents that has reduced systematic and random error, which in turn has minimised the risk of running less frequent IQC. We suggest that it is time to rethink the role of both these processes and unite them into a single approach using an Average of Normals model supported by more frequent External Quality Assurance samples. This new paradigm may lead to less confusion for laboratory staff and quicker responses to and identification of out of control situations.

  18. A study on the image quality of mammography and the average glandular dose

    International Nuclear Information System (INIS)

    Lee, In Ja; Kim, Hak Sung; Kim, Sung Soo; Huh, Joon

    2002-01-01

    We came to the following conclusion as the results of experiment on the image quality of mammography and the average glandular dose using 4 apparatuses at 3 hospital in Seoul. Whereas the measurement of half value layer showed no differences among the apparatuses, the measurement by an attenuation curve method showed some differences by 5.9%. There were 9.1% differences in the measurement by aluminum conversion method. The basic density of an automatic exposure control unit must be D = 1.40, but there was no automatic exposure unit adjusted precisely at any hospital. The unit at the B hospital exceeded the allowable limit by ± 0.15. In the photographing using an automatic exposure control unit and the management of an automatic film processor using a sensitometer, most automatic film processors were well kept. But in some cases the mean value of a fluctuation coefficient exceeded the allowable limit. There is a need for more cautious management. The image quality of breast phantom photography was affected by the screen/film system among the hospital. The average glandular dose at a breast of 4.2 cm thickness depended on the tube voltage, In the case of Mo/Mo, it was measured 0.26 ∼ 1.39 mGy less than ACR standard 3.0 mGy

  19. A Two-Factor Autoregressive Moving Average Model Based on Fuzzy Fluctuation Logical Relationships

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    Shuang Guan

    2017-10-01

    Full Text Available Many of the existing autoregressive moving average (ARMA forecast models are based on one main factor. In this paper, we proposed a new two-factor first-order ARMA forecast model based on fuzzy fluctuation logical relationships of both a main factor and a secondary factor of a historical training time series. Firstly, we generated a fluctuation time series (FTS for two factors by calculating the difference of each data point with its previous day, then finding the absolute means of the two FTSs. We then constructed a fuzzy fluctuation time series (FFTS according to the defined linguistic sets. The next step was establishing fuzzy fluctuation logical relation groups (FFLRGs for a two-factor first-order autoregressive (AR(1 model and forecasting the training data with the AR(1 model. Then we built FFLRGs for a two-factor first-order autoregressive moving average (ARMA(1,m model. Lastly, we forecasted test data with the ARMA(1,m model. To illustrate the performance of our model, we used real Taiwan Stock Exchange Capitalization Weighted Stock Index (TAIEX and Dow Jones datasets as a secondary factor to forecast TAIEX. The experiment results indicate that the proposed two-factor fluctuation ARMA method outperformed the one-factor method based on real historic data. The secondary factor may have some effects on the main factor and thereby impact the forecasting results. Using fuzzified fluctuations rather than fuzzified real data could avoid the influence of extreme values in historic data, which performs negatively while forecasting. To verify the accuracy and effectiveness of the model, we also employed our method to forecast the Shanghai Stock Exchange Composite Index (SHSECI from 2001 to 2015 and the international gold price from 2000 to 2010.

  20. Factors affecting dental service quality.

    Science.gov (United States)

    Bahadori, Mohammadkarim; Raadabadi, Mehdi; Ravangard, Ramin; Baldacchino, Donia

    2015-01-01

    Measuring dental clinic service quality is the first and most important factor in improving care. The quality provided plays an important role in patient satisfaction. The purpose of this paper is to identify factors affecting dental service quality from the patients' viewpoint. This cross-sectional, descriptive-analytical study was conducted in a dental clinic in Tehran between January and June 2014. A sample of 385 patients was selected from two work shifts using stratified sampling proportional to size and simple random sampling methods. The data were collected, a self-administered questionnaire designed for the purpose of the study, based on the Parasuraman and Zeithaml's model of service quality which consisted of two parts: the patients' demographic characteristics and a 30-item questionnaire to measure the five dimensions of the service quality. The collected data were analysed using SPSS 21.0 and Amos 18.0 through some descriptive statistics such as mean, standard deviation, as well as analytical methods, including confirmatory factor. Results showed that the correlation coefficients for all dimensions were higher than 0.5. In this model, assurance (regression weight=0.99) and tangibility (regression weight=0.86) had, respectively, the highest and lowest effects on dental service quality. The Parasuraman and Zeithaml's model is suitable to measure quality in dental services. The variables related to dental services quality have been made according to the model. This is a pioneering study that uses Parasuraman and Zeithaml's model and CFA in a dental setting. This study provides useful insights and guidance for dental service quality assurance.

  1. Extending a Consensus-based Fuzzy Ordered Weighting Average (FOWA Model in New Water Quality Indices

    Directory of Open Access Journals (Sweden)

    Mohammad Ali Baghapour

    2017-07-01

    Full Text Available In developing a specific WQI (Water Quality Index, many quality parameters are involved with different levels of importance. The impact of experts’ different opinions and viewpoints, current risks affecting their opinions, and plurality of the involved parameters double the significance of the issue. Hence, the current study tries to apply a consensus-based FOWA (Fuzzy Ordered Weighting Average model as one of the most powerful and well-known Multi-Criteria Decision- Making (MCDM techniques to determine the importance of the used parameters in the development of such WQIs which is shown with an example. This operator has provided the capability of modeling the risks in decision-making through applying the optimistic degree of stakeholders and their power coupled with the use of fuzzy numbers. Totally, 22 water quality parameters for drinking purposes were considered in this study. To determine the weight of each parameter, the viewpoints of 4 decision-making groups of experts were taken into account. After determining the final weights, to validate the use of each parameter in a potential WQI, consensus degrees of both the decision makers and the parameters are calculated. The highest and the lowest weight values, 0.999 and 0.073 respectively, were related to Hg and temperature. Regarding the type of consumption that was drinking, the parameters’ weights and ranks were consistent with their health impacts. Moreover, the decision makers’ highest and lowest consensus degrees were 0.9905 and 0.9669, respectively. Among the water quality parameters, temperature (with consensus degree of 0.9972 and Pb (with consensus degree of 0.9665, received the highest and lowest agreement with the decision-making group. This study indicated that the weight of parameters in determining water quality largely depends on the experts’ opinions and approaches. Moreover, using the FOWA model provides results accurate and closer- to-reality on the significance of

  2. An average/deprivation/inequality (ADI) analysis of chronic disease outcomes and risk factors in Argentina

    Science.gov (United States)

    De Maio, Fernando G; Linetzky, Bruno; Virgolini, Mario

    2009-01-01

    Background Recognition of the global economic and epidemiological burden of chronic non-communicable diseases has increased in recent years. However, much of the research on this issue remains focused on individual-level risk factors and neglects the underlying social patterning of risk factors and disease outcomes. Methods Secondary analysis of Argentina's 2005 Encuesta Nacional de Factores de Riesgo (National Risk Factor Survey, N = 41,392) using a novel analytical strategy first proposed by the United Nations Development Programme (UNDP), which we here refer to as the Average/Deprivation/Inequality (ADI) framework. The analysis focuses on two risk factors (unhealthy diet and obesity) and one related disease outcome (diabetes), a notable health concern in Latin America. Logistic regression is used to examine the interplay between socioeconomic and demographic factors. The ADI analysis then uses the results from the logistic regression to identify the most deprived, the best-off, and the difference between the two ideal types. Results Overall, 19.9% of the sample reported being in poor/fair health, 35.3% reported not eating any fruits or vegetables in five days of the week preceding the interview, 14.7% had a BMI of 30 or greater, and 8.5% indicated that a health professional had told them that they have diabetes or high blood pressure. However, significant variation is hidden by these summary measures. Educational attainment displayed the strongest explanatory power throughout the models, followed by household income, with both factors highlighting the social patterning of risk factors and disease outcomes. As educational attainment and household income increase, the probability of poor health, unhealthy diet, obesity, and diabetes decrease. The analyses also point toward important provincial effects and reinforce the notion that both compositional factors (i.e., characteristics of individuals) and contextual factors (i.e., characteristics of places) are

  3. Experimental study of relationship between average isotopic fractionation factor and evaporation rate

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    Tao Wang

    2010-12-01

    Full Text Available Isotopic fractionation is the basis of tracing the water cycle using hydrogen and oxygen isotopes. Isotopic fractionation factors in water evaporating from free water bodies are mainly affected by temperature and relative humidity, and vary significantly with these atmospheric factors over the course of a day. The evaporation rate (E can reveal the effects of atmospheric factors. Therefore, there should be a certain functional relationship between isotopic fractionation factors and E. An average isotopic fractionation factor (α* was defined to describe isotopic differences between vapor and liquid phases in evaporation with time intervals of days. The relationship between α* and E based on the isotopic mass balance was investigated through an evaporation pan experiment with no inflow. The experimental results showed that the isotopic compositions of residual water were more enriched with time; α* was affected by air temperature, relative humidity, and other atmospheric factors, and had a strong functional relation with E. The values of α* can be easily calculated with the known values of E, the initial volume of water in the pan, and isotopic compositions of residual water.

  4. On the laws of thermodynamics from the escort average and on the uniqueness of statistical factors

    International Nuclear Information System (INIS)

    Yamano, Takuya

    2003-01-01

    We consider the relation between the statistical weight and the laws of thermodynamics. Our path bases on the infinitesimal perturbation from outside of the thermodynamical system. It is fair to say that the form of the first laws of thermodynamics and the Clausius' definition of thermodynamic entropy are commensurately altered once we employ the escort average of statistical weight but preserves the forms in the limit of the usual weight. We also see an example for the unique determination of the statistical factor (so-called the Gibbs theorem) in addition to the Boltzmann and the Tsallis ones

  5. Calculation of air kerma to average glandular tissue dose conversion factors for mammography

    International Nuclear Information System (INIS)

    Zoetelief, J.; Jansen, J.T.M.

    1995-01-01

    Among the quantities used for dose specification in mammography the average absorbed dose in glandular tissue is most appropriate for risk assessments. Generally, average absorbed dose in glandular tissue is derived from measurement of air kerma free-in-air combined with conversion factors obtained from radiation transport calculations in mathematical breast models. Air kerma to glandular tissue dose conversion factors are published by various authors as a function of half-value layer (HVL) for simple breast phantoms. Calculations by different authors differ in radiation transport codes, photon interaction data, photon spectra, composition and thickness of superficial layer (representing skin and subcutaneous adipose tissue), presence of compression plate, and are not performed with the tissue compositions recommended by the ICRU. Protocols for dosimetry in mammography in different European countries (UK, Netherlands, Sweden) use results from different authors. To study the influence of the parameters indicated, air kerma to glandular tissue dose conversion factors, g, are calculated using the MCNP radiation transport code. Use of different spectra can cause differences in g values up to about 7%. The use of a compression plate results in a 4.5 ± 1.5% smaller g value for the same HVL. The use of MCPLIB cross sections results in 10% higher g values compared to the use of XCOM data. The influence of the backscatter material (composition and thickness) on the g value is marginal (< 1%). The different superficial layers used result in differences in g values of up to 19%. When the breast thickness is changed from 2 cm to 8 cm, g values decrease by a factor of about 4. Employing Hammerstein's tissue compositions compared to those from the ICRU results in differences in g values up to about 14%. (Author)

  6. Biosphere Dose Conversion Factors for Reasonably Maximally Exposed Individual and Average Member of Critical Group

    International Nuclear Information System (INIS)

    K. Montague

    2000-01-01

    The purpose of this calculation is to develop additional Biosphere Dose Conversion Factors (BDCFs) for a reasonably maximally exposed individual (RMEI) for the periods 10,000 years and 1,000,000 years after the repository closure. In addition, Biosphere Dose Conversion Factors for the average member of a critical group are calculated for those additional radionuclides postulated to reach the environment during the period after 10,000 years and up to 1,000,000 years. After the permanent closure of the repository, the engineered systems within the repository will eventually lose their abilities to contain radionuclide inventory, and the radionuclides will migrate through the geosphere and eventually enter the local water table moving toward inhabited areas. The primary release scenario is a groundwater well used for drinking water supply and irrigation, and this calculation takes these postulated releases and follows them through various pathways until they result in a dose to either a member of critical group or a reasonably maximally exposed individual. The pathways considered in this calculation include inhalation, ingestion, and direct exposure

  7. A Review on Audit Quality Factors

    OpenAIRE

    Seyed Mahmoud Hosseinniakani; Helena Inacio; Rui Mota

    2014-01-01

    “Audit Quality” is not easy to define because of many diverse factors affecting quality. According to the consultation paper of the International Auditing and Assurance Standards Board (IAASB), audit quality is the significant issue that requires more considerable attention. Understanding how audit quality is important requires investigating audit quality factors more precisely. So, the present article aims to review and summarize the different audit quality factors, comparing the results ach...

  8. Barrier-relevant crash modification factors and average costs of crashes on arterial roads in Indiana.

    Science.gov (United States)

    Zou, Yaotian; Tarko, Andrew P

    2018-02-01

    The objective of this study was to develop crash modification factors (CMFs) and estimate the average crash costs applicable to a wide range of road-barrier scenarios that involved three types of road barriers (concrete barriers, W-beam guardrails, and high-tension cable barriers) to produce a suitable basis for comparing barrier-oriented design alternatives and road improvements. The intention was to perform the most comprehensive and in-depth analysis allowed by the cross-sectional method and the crash data available in Indiana. To accomplish this objective and to use the available data efficiently, the effects of barrier were estimated on the frequency of barrier-relevant (BR) crashes, the types of harmful events and their occurrence during a BR crash, and the severity of BR crash outcomes. The harmful events component added depth to the analysis by connecting the crash onset with its outcome. Further improvement of the analysis was accomplished by considering the crash outcome severity of all the individuals involved in a crash and not just drivers, utilizing hospital data, and pairing the observations with and without road barriers along same or similar road segments to better control the unobserved heterogeneity. This study confirmed that the total number of BR crashes tended to be higher where medians had installed barriers, mainly due to collisions with barriers and, in some cases, with other vehicles after redirecting vehicles back to traffic. These undesirable effects of barriers were surpassed by the positive results of reducing cross-median crashes, rollover events, and collisions with roadside hazards. The average cost of a crash (unit cost) was reduced by 50% with cable barriers installed in medians wider than 50ft. A similar effect was concluded for concrete barriers and guardrails installed in medians narrower than 50ft. The studied roadside guardrails also reduced the unit cost by 20%-30%. Median cable barriers were found to be the most effective

  9. Total Quality Management (TQM) Practices and School Climate amongst High, Average and Low Performance Secondary Schools

    Science.gov (United States)

    Ismail, Siti Noor

    2014-01-01

    Purpose: This study attempted to determine whether the dimensions of TQM practices are predictors of school climate. It aimed to identify the level of TQM practices and school climate in three different categories of schools, namely high, average and low performance schools. The study also sought to examine which dimensions of TQM practices…

  10. PRICE VS QUALITY COMPETITION AND THE SPATIAL PATTERN OF AVERAGE PRICES IN INTERNATIONAL TRADE

    Directory of Open Access Journals (Sweden)

    Mattoscio Nicola

    2012-07-01

    Full Text Available This work investigates the relationship between the average export prices and the distance between the origin and the destination market in international trade. Distance between trading partners obviously stands at the core of I international trade literature and is strictly related with the issue of how countries and firms compete on export markets when transport costs become increasingly stiff. Heterogeneous-Firm Trade (HFT models predict that only most competitive firms are able to export on distant markets, where it is more difficult to recover from freight costs. However, this simple concept does not lead to unambiguous predictions on the spatial pattern of average export f.o.b. prices. \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\r\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\

  11. Underwater image quality enhancement through Rayleigh-stretching and averaging image planes

    Directory of Open Access Journals (Sweden)

    Ahmad Shahrizan Abdul Ghani

    2014-12-01

    Full Text Available Visibility in underwater images is usually poor because of the attenuation of light in the water that causes low contrast and color variation. In this paper, a new approach for underwater image quality improvement is presented. The proposed method aims to improve underwater image contrast, increase image details, and reduce noise by applying a new method of using contrast stretching to produce two different images with different contrasts. The proposed method integrates the modification of the image histogram in two main color models, RGB and HSV The histograms of the color channel in the RGB color model are modified and remapped to follow the Rayleigh distribution within certain ranges. The image is then converted to the HSV color model, and the S and V components are modified within a certain limit. Qualitative and quantitative analyses indicate that the proposed method outperforms other state-of-the-art methods in terms of contrast, details, and noise reduction. The image color also shows much improvement.

  12. Underwater image quality enhancement through Rayleigh-stretching and averaging image planes

    Directory of Open Access Journals (Sweden)

    Ghani Ahmad Shahrizan Abdul

    2014-12-01

    Full Text Available Visibility in underwater images is usually poor because of the attenuation of light in the water that causes low contrast and color variation. In this paper, a new approach for underwater image quality improvement is presented. The proposed method aims to improve underwater image contrast, increase image details, and reduce noise by applying a new method of using contrast stretching to produce two different images with different contrasts. The proposed method integrates the modification of the image histogram in two main color models, RGB and HSV. The histograms of the color channel in the RGB color model are modified and remapped to follow the Rayleigh distribution within certain ranges. The image is then converted to the HSV color model, and the S and V components are modified within a certain limit. Qualitative and quantitative analyses indicate that the proposed method outperforms other state-of- the-art methods in terms of contrast, details, and noise reduction. The image color also shows much improvement.

  13. Environmental factors and semen quality

    DEFF Research Database (Denmark)

    Jurewicz, Joanna; Hanke, Wojciech; Radwan, Michal

    2009-01-01

    OBJECTIVES: An increasing number of reports suggest that chemical and physical agents in the environment, introduced and spread by human activity, may affect male fertility in humans. This article aims at evaluating the impact of environmental exposures (pesticides, phthalates, PCBs, air pollution...... to sperm motility. In case of air pollution, studies suggest a link between ambient air pollutants and various semen characteristics. Additional research is needed to corroborate this association and to establish the causal agents. Results of few studies on subfertile men demonstrate associations between...... phthalate levels commonly experienced by the public and impaired sperm quality (impact on sperm concentration, morphology, motility), but the findings have not been corroborated in studies of men from the general population. Mobile phones might adversely affect the quality of semen by decreasing mostly...

  14. Individual and average responses of sleep quality and daytime sleepiness after four weeks of strength training in adolescents

    Directory of Open Access Journals (Sweden)

    Maria Julia Lyra

    2018-01-01

    Full Text Available Abstract Aims: To analyze the average and individual responses of sleep quality and daytime sleepiness in adolescents after four weeks of strength training. Methods: 19 adolescents with sleep problems recruited in the Federal Institute of Pernambuco, were subject to anthropometric evaluations as well as those for body composition assessment, a 1 repetition maximum test, the sleep parameters (Pittsburgh Sleep Quality Index-PSQI and Epworth Sleepiness Scale-ESS and were submitted to four weeks of strength-training, performed alternately by segment, two sessions per week, according to recommendations for this population. Results: A decrease in the average PSQI score was observed (10.3±3.3 vs 8.8±4.0; p=0.006, but not in ESS (p>0.05, after intervention. The individual analyses demonstrated that ~63% of adolescents experienced reductions ≥ 3 points in the PSQI and ~58% of them experienced reductions ≥ 3 points in the measure of daytime sleepiness. The prevalence of poor sleep quality and daytime sleepiness reduced from 84.2% to 68.4% and from 52.6% to 31.6%, respectively. The comparisons of high and low responders to exercise training show that adolescents who reduced ≥3 points in the score of a least one sleep parameter presented lower weight, fat mass, and fat percentage (p<0.05. Conclusion: A short-term strength-training program is able to improve global sleep quality, but not daytime sleepiness in adolescents. Furthermore, the changes after training are highly heterogeneous. Further studies are required to better understand the effects of strength training on sleep parameters of adolescents.

  15. Average value of the shape and direction factor in the equation of refractive index

    Science.gov (United States)

    Zhang, Tao

    2017-10-01

    The theoretical calculation of the refractive indices is of great significance for the developments of new optical materials. The calculation method of refractive index, which was deduced from the electron-cloud-conductor model, contains the shape and direction factor 〈g〉. 〈g〉 affects the electromagnetic-induction energy absorbed by the electron clouds, thereby influencing the refractive indices. It is not yet known how to calculate 〈g〉 value of non-spherical electron clouds. In this paper, 〈g〉 value is derived by imaginatively dividing the electron cloud into numerous little volume elements and then regrouping them. This paper proves that 〈g〉 = 2/3 when molecules’ spatial orientations distribute randomly. The calculations of the refractive indices of several substances validate this equation. This result will help to promote the application of the calculation method of refractive index.

  16. Surface water quality assessment using factor analysis

    African Journals Online (AJOL)

    2006-01-16

    Jan 16, 2006 ... factors extracted by the Centroid method, rotated by Varimax rotation (Ahmed et al., 2005). Calculated eigenvalues, per cent. Figure 1. Sketch map of water quality monitoring stations in Buyuk. Menderes Basin in Turkey. TABLE 1. Descriptive statistics of water quality data under low-flow conditions. Variable.

  17. Factors associated with poor sleep quality in women with cancer

    Directory of Open Access Journals (Sweden)

    Thalyta Cristina Mansano-Schlosser

    Full Text Available ABSTRACT Objectives: to analyze the factors associated with poor sleep quality, its characteristics and components in women with breast cancer prior to surgery for removing the tumor and throughout the follow-up. Method: longitudinal study in a teaching hospital, with a sample of 102 women. The following were used: a questionnaire for sociodemographic and clinical characterization, the Pittsburgh Sleep Quality Index; the Beck Depression Inventory; and the Herth Hope Scale. Data collection covered from prior to the surgery for removal of the tumor (T0 to T1, on average 3.2 months; T2, on average 6.1 months; and T3, on average 12.4 months. Descriptive statistics and the Generalized Estimating Equations model were used. Results: depression and pain contributed to the increase in the score of the Pittsburgh Sleep Quality Index, and hope, to the reduction of the score - independently - throughout follow-up. Sleep disturbances were the component with the highest score throughout follow-up. Conclusion: the presence of depression and pain, prior to the surgery, contributed to the increase in the global score of the Pittsburgh Sleep Quality Index, which indicates worse quality of sleep throughout follow-up; greater hope, in its turn, influenced the reduction of the score of the Pittsburgh Sleep Quality Index.

  18. Nanodosimetry-based quality factors for radiation protection in space

    International Nuclear Information System (INIS)

    Schulte, Reinhard W.; Wroe, Andrew J.; Bashkirov, Vladimir A.; Garty, Guy Y.; Breskin, Amos; Chechik, Rachel; Shchemelinin, Sergei; Gargioni, Elisabetta; Grosswendt, Bernd; Rosenfeld, Anatoly B.

    2008-01-01

    Evaluation and monitoring of the cancer risk from space radiation exposure is a crucial requirement for the success of long-term space missions. One important task in the risk calculation is to properly weigh the various components of space radiation dose according to their assumed contribution to the cancer risk relative to the risk associated with radiation of low ionization density. Currently, quality factors of radiation both on the ground and in space are defined by national and international commissions based on existing radiobiological data and presumed knowledge of the ionization density distribution of the radiation field at a given point of interest. This approach makes the determination of the average quality factor of a given radiation field a rather complex task. In this contribution, we investigate the possibility to define quality factors of space radiation exposure based on nanodosimetric data. The underlying formalism of the determination of quality factors on the basis of nanodosimetric data is described, and quality factors for protons and ions (helium and carbon) of different energies based on simulated nanodosimetric data are presented. The value and limitations of this approach are discussed. (orig.)

  19. A Bayesian model averaging approach to examining changes in quality of life among returning Iraq and Afghanistan veterans.

    Science.gov (United States)

    Stock, Eileen M; Kimbrel, Nathan A; Meyer, Eric C; Copeland, Laurel A; Monte, Ralph; Zeber, John E; Gulliver, Suzy Bird; Morissette, Sandra B

    2014-09-01

    Many Veterans from the conflicts in Iraq and Afghanistan return home with physical and psychological impairments that impact their ability to enjoy normal life activities and diminish their quality of life (QoL). The present research aimed to identify predictors of QoL over an eight-month period using Bayesian model averaging (BMA), which is a statistical technique useful for maximizing power with smaller sample sizes. A sample of 117 Iraq and Afghanistan Veterans receiving care in a southwestern health care system was recruited, and BMA examined the impact of key demographics (e.g., age, gender), diagnoses (e.g., depression), and treatment modalities (e.g., individual therapy, medication) on QoL over time. Multiple imputation based on Gibbs sampling was employed for incomplete data (6.4% missingness). Average follow-up QoL scores were significantly lower than at baseline (73.2 initial versus 69.5 four-month and 68.3 eight-month). Employment was associated with increased QoL during each follow-up, while post-traumatic stress disorder and Black race were inversely related. Additionally, predictive models indicated that depression, income, treatment for a medical condition, and group psychotherapy were strong negative predictors of four-month QoL but not eight-month QoL. Copyright © 2014 John Wiley & Sons, Ltd.

  20. A Path Model of Psychosocial Factors Influencing Quality, Quality ...

    African Journals Online (AJOL)

    This study adopted the survey research design using an ex-post facto type to investigate path modeling of psychosocial factors influencing quality marital relationship among married individuals in Southwest Nigeria. The target population ... Three research questions were answered using path analysis. The result showed ...

  1. Fish milt quality and major factors influencing the milt quality ...

    African Journals Online (AJOL)

    In commercial fish production, the evaluation of milt quality is essential in order to increase the efficiency of artificial fertilization. Numerous studies have demonstrated that qualitative parameters of milt (i.e. seminal fluid composition, spermatozoa motility and sperm production) could be influence by several factors including ...

  2. Factors influencing microinjection molding replication quality

    Science.gov (United States)

    Vera, Julie; Brulez, Anne-Catherine; Contraires, Elise; Larochette, Mathieu; Trannoy-Orban, Nathalie; Pignon, Maxime; Mauclair, Cyril; Valette, Stéphane; Benayoun, Stéphane

    2018-01-01

    In recent years, there has been increased interest in producing and providing high-precision plastic parts that can be manufactured by microinjection molding: gears, pumps, optical grating elements, and so on. For all of these applications, the replication quality is essential. This study has two goals: (1) fabrication of high-precision parts using the conventional injection molding machine; (2) identification of robust parameters that ensure production quality. Thus, different technological solutions have been used: cavity vacuuming and the use of a mold coated with DLC or CrN deposits. AFM and SEM analyses were carried out to characterize the replication profile. The replication quality was studied in terms of the process parameters, coated and uncoated molds and crystallinity of the polymer. Specific studies were processed to quantify the replicability of injection molded parts (ABS, PC and PP). Analysis of the Taguchi experimental designs permits prioritization of the impact of each parameter on the replication quality. A discussion taking into account these new parameters and the thermal and spreading properties on the coatings is proposed. It appeared that, in general, increasing the mold temperature improves the molten polymer fill in submicron features except for the steel insert (for which the presence of a vacuum is the most important factor). Moreover, the DLC coating was the best coating to increase the quality of the replication. This result could be explained by the lower thermal diffusivity of this coating. We noted that the viscosity of the polymers is not a primordial factor of the replication quality.

  3. Identifying key hospital service quality factors in online health communities.

    Science.gov (United States)

    Jung, Yuchul; Hur, Cinyoung; Jung, Dain; Kim, Minki

    2015-04-07

    The volume of health-related user-created content, especially hospital-related questions and answers in online health communities, has rapidly increased. Patients and caregivers participate in online community activities to share their experiences, exchange information, and ask about recommended or discredited hospitals. However, there is little research on how to identify hospital service quality automatically from the online communities. In the past, in-depth analysis of hospitals has used random sampling surveys. However, such surveys are becoming impractical owing to the rapidly increasing volume of online data and the diverse analysis requirements of related stakeholders. As a solution for utilizing large-scale health-related information, we propose a novel approach to identify hospital service quality factors and overtime trends automatically from online health communities, especially hospital-related questions and answers. We defined social media-based key quality factors for hospitals. In addition, we developed text mining techniques to detect such factors that frequently occur in online health communities. After detecting these factors that represent qualitative aspects of hospitals, we applied a sentiment analysis to recognize the types of recommendations in messages posted within online health communities. Korea's two biggest online portals were used to test the effectiveness of detection of social media-based key quality factors for hospitals. To evaluate the proposed text mining techniques, we performed manual evaluations on the extraction and classification results, such as hospital name, service quality factors, and recommendation types using a random sample of messages (ie, 5.44% (9450/173,748) of the total messages). Service quality factor detection and hospital name extraction achieved average F1 scores of 91% and 78%, respectively. In terms of recommendation classification, performance (ie, precision) is 78% on average. Extraction and

  4. Exploring Factors That Influence Quality Literature Circles

    Science.gov (United States)

    Young, Chase; Mohr, Kathleen A. J.

    2018-01-01

    Research indicates that literature circles are an authentic means for literacy development that students typically enjoy. To better understand the potential value and to add to the research base regarding literature circles, this study, involving 17 fourth graders, explores factors that may influence the quality of literature discussions,…

  5. 7 CFR 52.782 - Allowances for quality factors.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 2 2010-01-01 2010-01-01 false Allowances for quality factors. 52.782 Section 52.782... for Quality Factors § 52.782 Allowances for quality factors. Table IV—Allowances for Quality Factors Factor Sample unit size Maximum number permissible for the respective grade A A B B C C Pits 20 ozs Not...

  6. 7 CFR 52.810 - Allowances for quality factors.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 2 2010-01-01 2010-01-01 false Allowances for quality factors. 52.810 Section 52.810... for Quality Factors § 52.810 Allowances for quality factors. Table I—Allowances for Quality Factors Factor Sample unit size Maximum number permissible for the respective grade A B C Color: Vary markedly or...

  7. Implementation and application of moving average as continuous analytical quality control instrument demonstrated for 24 routine chemistry assays.

    Science.gov (United States)

    Rossum, Huub H van; Kemperman, Hans

    2017-07-26

    General application of a moving average (MA) as continuous analytical quality control (QC) for routine chemistry assays has failed due to lack of a simple method that allows optimization of MAs. A new method was applied to optimize the MA for routine chemistry and was evaluated in daily practice as continuous analytical QC instrument. MA procedures were optimized using an MA bias detection simulation procedure. Optimization was graphically supported by bias detection curves. Next, all optimal MA procedures that contributed to the quality assurance were run for 100 consecutive days and MA alarms generated during working hours were investigated. Optimized MA procedures were applied for 24 chemistry assays. During this evaluation, 303,871 MA values and 76 MA alarms were generated. Of all alarms, 54 (71%) were generated during office hours. Of these, 41 were further investigated and were caused by ion selective electrode (ISE) failure (1), calibration failure not detected by QC due to improper QC settings (1), possible bias (significant difference with the other analyzer) (10), non-human materials analyzed (2), extreme result(s) of a single patient (2), pre-analytical error (1), no cause identified (20), and no conclusion possible (4). MA was implemented in daily practice as a continuous QC instrument for 24 routine chemistry assays. In our setup when an MA alarm required follow-up, a manageable number of MA alarms was generated that resulted in valuable MA alarms. For the management of MA alarms, several applications/requirements in the MA management software will simplify the use of MA procedures.

  8. Factors influencing quality of life in asthmatics

    DEFF Research Database (Denmark)

    Al-kalemji, Abir; Petersen, Karin Dam; Sørensen, Jan

    2013-01-01

    INTRODUCTION: The quality of life (QOL) in persons with asthma is reduced and different factors such as demography, asthma severity and psychiatric comorbidity play an influential role. However, little is known about the interplay of these factors. OBJECTIVE: To describe QOL in relation to asthma...... gender and smoking were associated with reduced QOL, suggesting that these factors play an independent role on lowering QOL. Depression did not inflate the relationship between asthma severity and worse QOL, suggesting that asthma severity plays an independent role on everyday life regardless...

  9. Monte Carlo generated conversion factors for the estimation of average glandular dose in contact and magnification mammography

    Science.gov (United States)

    Koutalonis, M.; Delis, H.; Spyrou, G.; Costaridou, L.; Tzanakos, G.; Panayiotakis, G.

    2006-11-01

    Magnification mammography is a special technique used in the cases where breast complaints are noted by a woman or when an abnormality is found in a screening mammogram. The carcinogenic risk in mammography is related to the dose deposited in the glandular tissue of the breast rather than the adipose, and average glandular dose (AGD) is the quantity taken into consideration during a mammographic examination. Direct measurement of the AGD is not feasible during clinical practice and thus, the incident air KERMA on the breast surface is used to estimate the glandular dose, with the help of proper conversion factors. Additional conversion factors adapted for magnification and tube voltage are calculated, using Monte Carlo simulation. The effect of magnification degree, tube voltage, various anode/filter material combinations and glandularity on AGD is also studied, considering partial breast irradiation. Results demonstrate that the estimation of AGD utilizing conversion factors depends on these parameters, while the omission of correction factors for magnification and tube voltage can lead to significant underestimation or overestimation of AGD. AGD was found to increase with filter material's k-absorption edge, anode material's k-emission edge, tube voltage and magnification. Decrease of the glandularity of the breast leads to higher AGD due to the increased penetrating ability of the photon beam in thick breasts with low glandularity.

  10. Monte Carlo generated conversion factors for the estimation of average glandular dose in contact and magnification mammography

    Energy Technology Data Exchange (ETDEWEB)

    Koutalonis, M [Department of Medical Physics, School of Medicine, University of Patras, 265 00 Patras (Greece); Delis, H [Department of Medical Physics, School of Medicine, University of Patras, 265 00 Patras (Greece); Spyrou, G [Department of Medical Physics, School of Medicine, University of Patras, 265 00 Patras (Greece); Costaridou, L [Department of Medical Physics, School of Medicine, University of Patras, 265 00 Patras (Greece); Tzanakos, G [Department of Physics, Div. Nucl. and Particle Physics, University of Athens, 157 71 Athens (Greece); Panayiotakis, G [Department of Medical Physics, School of Medicine, University of Patras, 265 00 Patras (Greece)

    2006-11-07

    Magnification mammography is a special technique used in the cases where breast complaints are noted by a woman or when an abnormality is found in a screening mammogram. The carcinogenic risk in mammography is related to the dose deposited in the glandular tissue of the breast rather than the adipose, and average glandular dose (AGD) is the quantity taken into consideration during a mammographic examination. Direct measurement of the AGD is not feasible during clinical practice and thus, the incident air KERMA on the breast surface is used to estimate the glandular dose, with the help of proper conversion factors. Additional conversion factors adapted for magnification and tube voltage are calculated, using Monte Carlo simulation. The effect of magnification degree, tube voltage, various anode/filter material combinations and glandularity on AGD is also studied, considering partial breast irradiation. Results demonstrate that the estimation of AGD utilizing conversion factors depends on these parameters, while the omission of correction factors for magnification and tube voltage can lead to significant underestimation or overestimation of AGD. AGD was found to increase with filter material's k-absorption edge, anode material's k-emission edge, tube voltage and magnification. Decrease of the glandularity of the breast leads to higher AGD due to the increased penetrating ability of the photon beam in thick breasts with low glandularity.

  11. The quality factor in ionising radiation

    International Nuclear Information System (INIS)

    Chen Changmao

    1990-12-01

    The existing quality factors for ionizing radiation and the Q values recommended by ICRU report 40 are briefly introduced, and the relevant aspects are also discussed. It is recommended that the new Q values presented by ICRU should not be adopted in protection radiation practices, but the ultimate decision from ICRP should be noted. It is pointed out that the relevant academic discussion should be developed at present, in order to study the position and policy which should be taken. (author)

  12. Factors that Influence Quality Service of Teachers

    Directory of Open Access Journals (Sweden)

    M. Nur Mustafa

    2013-07-01

    Full Text Available Education as a profession requires a thorough commitment and sincerity among educators in guiding and shaping the patterns of learning toward forming identities and lead change in the students. As an adult with a lot of knowledge and experience, classroom becomes an important medium for the delivery and access to knowledge to the students in an instructional condition that effectively and efficiently. Therefore, all educators need to prepare themselves to face challenges to deal with children as a leader in charge in constructing a conducive and persuasive educational relationship. Important characteristics in this context is how to create a memorable delivery systems that meet the standard qualities and aligned with the education laws enforced. As a teacher who has received training from experts and civil servants thus all actions taken should be sincere, open, meet the service specification that gives attention to the self-esteem of the students with a good service, quality, and meet their needs. Therefore, this study will discuss the main factors that affect the quality of service to the students among the teachers namely motivation and professional competence. Selected samples in this study were 327 teachers from Secondary School in Pekanbaru. This study has shown a clear interest in improving the quality of motivation and the quality of service of teachers to the students. The aspects of the professional competence of teachers are still experiencing problems in applying the knowledge and skills to lead and manage the classroom inrealizing   a conducive environment.

  13. Average glandular dose in paired digital mammography and digital breast tomosynthesis acquisitions in a population based screening program: effects of measuring breast density, air kerma and beam quality

    Science.gov (United States)

    Helge Østerås, Bjørn; Skaane, Per; Gullien, Randi; Catrine Trægde Martinsen, Anne

    2018-02-01

    The main purpose was to compare average glandular dose (AGD) for same-compression digital mammography (DM) and digital breast tomosynthesis (DBT) acquisitions in a population based screening program, with and without breast density stratification, as determined by automatically calculated breast density (Quantra™). Secondary, to compare AGD estimates based on measured breast density, air kerma and half value layer (HVL) to DICOM metadata based estimates. AGD was estimated for 3819 women participating in the screening trial. All received craniocaudal and mediolateral oblique views of each breasts with paired DM and DBT acquisitions. Exposure parameters were extracted from DICOM metadata. Air kerma and HVL were measured for all beam qualities used to acquire the mammograms. Volumetric breast density was estimated using Quantra™. AGD was estimated using the Dance model. AGD reported directly from the DICOM metadata was also assessed. Mean AGD was 1.74 and 2.10 mGy for DM and DBT, respectively. Mean DBT/DM AGD ratio was 1.24. For fatty breasts: mean AGD was 1.74 and 2.27 mGy for DM and DBT, respectively. For dense breasts: mean AGD was 1.73 and 1.79 mGy, for DM and DBT, respectively. For breasts of similar thickness, dense breasts had higher AGD for DM and similar AGD for DBT. The DBT/DM dose ratio was substantially lower for dense compared to fatty breasts (1.08 versus 1.33). The average c-factor was 1.16. Using previously published polynomials to estimate glandularity from thickness underestimated the c-factor by 5.9% on average. Mean AGD error between estimates based on measurements (air kerma and HVL) versus DICOM header data was 3.8%, but for one mammography unit as high as 7.9%. Mean error of using the AGD value reported in the DICOM header was 10.7 and 13.3%, respectively. Thus, measurement of breast density, radiation dose and beam quality can substantially affect AGD estimates.

  14. Average glandular dose in paired digital mammography and digital breast tomosynthesis acquisitions in a population based screening program: effects of measuring breast density, air kerma and beam quality.

    Science.gov (United States)

    Østerås, Bjørn Helge; Skaane, Per; Gullien, Randi; Martinsen, Anne Catrine Trægde

    2018-01-25

    The main purpose was to compare average glandular dose (AGD) for same-compression digital mammography (DM) and digital breast tomosynthesis (DBT) acquisitions in a population based screening program, with and without breast density stratification, as determined by automatically calculated breast density (Quantra ™ ). Secondary, to compare AGD estimates based on measured breast density, air kerma and half value layer (HVL) to DICOM metadata based estimates. AGD was estimated for 3819 women participating in the screening trial. All received craniocaudal and mediolateral oblique views of each breasts with paired DM and DBT acquisitions. Exposure parameters were extracted from DICOM metadata. Air kerma and HVL were measured for all beam qualities used to acquire the mammograms. Volumetric breast density was estimated using Quantra ™ . AGD was estimated using the Dance model. AGD reported directly from the DICOM metadata was also assessed. Mean AGD was 1.74 and 2.10 mGy for DM and DBT, respectively. Mean DBT/DM AGD ratio was 1.24. For fatty breasts: mean AGD was 1.74 and 2.27 mGy for DM and DBT, respectively. For dense breasts: mean AGD was 1.73 and 1.79 mGy, for DM and DBT, respectively. For breasts of similar thickness, dense breasts had higher AGD for DM and similar AGD for DBT. The DBT/DM dose ratio was substantially lower for dense compared to fatty breasts (1.08 versus 1.33). The average c-factor was 1.16. Using previously published polynomials to estimate glandularity from thickness underestimated the c-factor by 5.9% on average. Mean AGD error between estimates based on measurements (air kerma and HVL) versus DICOM header data was 3.8%, but for one mammography unit as high as 7.9%. Mean error of using the AGD value reported in the DICOM header was 10.7 and 13.3%, respectively. Thus, measurement of breast density, radiation dose and beam quality can substantially affect AGD estimates.

  15. Yogurt, diet quality and lifestyle factors.

    Science.gov (United States)

    Panahi, S; Fernandez, M A; Marette, A; Tremblay, A

    2017-05-01

    Yogurt consumption has been associated with healthy dietary patterns and lifestyles, better diet quality and healthier metabolic profiles. Studies have shown that frequent yogurt consumers do not only have higher nutrient intakes, but also an improved diet quality, which includes higher consumption of fruits and vegetables, whole grains, and dairy compared with low or non-consumers indicating better compliance with dietary guidelines. Recent epidemiological and clinical evidence suggests that yogurt contributes to better metabolic health because of its effects on the control of body weight, energy homeostasis and glycemic control. Furthermore, yogurt consumers have been shown to be more physically active (⩾ 2 h/week), smoke less, have higher education and knowledge of nutrition compared with non-consumers. Thus, yogurt consumption may be considered a signature of a healthy diet through its nutritional content, impact on metabolic health including the control of energy balance, body weight and glycemia and its relationships with healthier behaviors and lifestyle factors.

  16. Evaluation of the quality consistency of powdered poppy capsule extractive by an averagely linear-quantified fingerprint method in combination with antioxidant activities and two compounds analyses.

    Science.gov (United States)

    Zhang, Yujing; Sun, Guoxiang; Hou, Zhifei; Yan, Bo; Zhang, Jing

    2017-12-01

    A novel averagely linear-quantified fingerprint method was proposed and successfully applied to monitor the quality consistency of alkaloids in powdered poppy capsule extractive. Averagely linear-quantified fingerprint method provided accurate qualitative and quantitative similarities for chromatographic fingerprints of Chinese herbal medicines. The stability and operability of the averagely linear-quantified fingerprint method were verified by the parameter r. The average linear qualitative similarity SL (improved based on conventional qualitative "Similarity") was used as a qualitative criterion in the averagely linear-quantified fingerprint method, and the average linear quantitative similarity PL was introduced as a quantitative one. PL was able to identify the difference in the content of all the chemical components. In addition, PL was found to be highly correlated to the contents of two alkaloid compounds (morphine and codeine). A simple flow injection analysis was developed for the determination of antioxidant capacity in Chinese Herbal Medicines, which was based on the scavenging of 2,2-diphenyl-1-picrylhydrazyl radical by antioxidants. The fingerprint-efficacy relationship linking chromatographic fingerprints and antioxidant activities was investigated utilizing orthogonal projection to latent structures method, which provided important pharmacodynamic information for Chinese herbal medicines quality control. In summary, quantitative fingerprinting based on averagely linear-quantified fingerprint method can be applied for monitoring the quality consistency of Chinese herbal medicines, and the constructed orthogonal projection to latent structures model is particularly suitable for investigating the fingerprint-efficacy relationship. © 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

  17. Correlation of the clinical and physical image quality in chest radiography for average adults with a computed radiography imaging system.

    Science.gov (United States)

    Moore, C S; Wood, T J; Beavis, A W; Saunderson, J R

    2013-07-01

    The purpose of this study was to examine the correlation between the quality of visually graded patient (clinical) chest images and a quantitative assessment of chest phantom (physical) images acquired with a computed radiography (CR) imaging system. The results of a previously published study, in which four experienced image evaluators graded computer-simulated postero-anterior chest images using a visual grading analysis scoring (VGAS) scheme, were used for the clinical image quality measurement. Contrast-to-noise ratio (CNR) and effective dose efficiency (eDE) were used as physical image quality metrics measured in a uniform chest phantom. Although optimal values of these physical metrics for chest radiography were not derived in this work, their correlation with VGAS in images acquired without an antiscatter grid across the diagnostic range of X-ray tube voltages was determined using Pearson's correlation coefficient. Clinical and physical image quality metrics increased with decreasing tube voltage. Statistically significant correlations between VGAS and CNR (R=0.87, pquality metrics described here in quality assurance programmes and optimisation studies with a degree of confidence that they reflect the clinical image quality in chest CR images acquired without an antiscatter grid. A statistically significant correlation has been found between the clinical and physical image quality in CR chest imaging. The results support the value of using CNR and eDE in the evaluation of quality in clinical thorax radiography.

  18. Preliminary results of the average glandular dose to the breast with TLDS measure is computed as the conversion factors

    International Nuclear Information System (INIS)

    Sardo, Luiz T.L.; Almeida, Claudio D.; Coutinho, Celia M.C.

    2013-01-01

    At mammography exams there is a risk of a breast cancer induced from the absorbed dose by the glandular tissue. According to the National Institute of Cancer, INCA, breast cancer is the second type most frequent in the world and the most common among women, therefore the necessity of monitoring the mean glandular dose, D G . Measuring methods of D G were established by some authors. Among the established methods the method of Dance is one of the most known. In this study was utilized a measurement method realized with TL dosimeters inserted in a breast tissue equivalent phantom, BTE, with 46% of glandularity and exposed using Mo/Mo and Mo/Rh target/filter combination and 28kV. To ensure this measurement method the results were compared with a calculation method, used by Dance, of D G from the measurement of incident air kerma, K i , and conversion factors to consider mainly the beam quality, the compressed thickness and the glandularity of the breast. The results of the comparison of the D G measurement with the obtained dose by the method of Dance demonstrated that for the thickness of 4.0 and 6.0 cm the doses were consistent. For the thickness of 5.0 cm the difference was higher, indicating that the glandularity may influence, suggesting further investigation. (author)

  19. Biophysics of NASA radiation quality factors.

    Science.gov (United States)

    Cucinotta, Francis A

    2015-09-01

    NASA has implemented new radiation quality factors (QFs) for projecting cancer risks from space radiation exposures to astronauts. The NASA QFs are based on particle track structure concepts with parameters derived from available radiobiology data, and NASA introduces distinct QFs for solid cancer and leukaemia risk estimates. The NASA model was reviewed by the US National Research Council and approved for use by NASA for risk assessment for International Space Station missions and trade studies of future exploration missions to Mars and other destinations. A key feature of the NASA QFs is to represent the uncertainty in the QF assessments and evaluate the importance of the QF uncertainty to overall uncertainties in cancer risk projections. In this article, the biophysical basis for the probability distribution functions representing QF uncertainties was reviewed, and approaches needed to reduce uncertainties were discussed. © The Author 2015. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oup.com.

  20. The TIMSS Study: The Quality of Education in Mathematics and Natural Sciences in Russia Exceeds Average International Indicators

    Science.gov (United States)

    Kovaleva, G.

    2010-01-01

    In terms of the quality of the teaching of mathematics and the natural sciences, Russia's school students in the fourth and eighth grades rank among the top ten countries out of the fifty-nine countries taking part in the TIMSS-2007 study. For Russia, TIMSS [Trends in International Mathematics and Science Study] is the first international…

  1. Effect of average flow and capacity utilization on effluent water quality from US municipal wastewater treatment facilities.

    Science.gov (United States)

    Weirich, Scott R; Silverstein, Joann; Rajagopalan, Balaji

    2011-08-01

    There is increasing interest in decentralization of wastewater collection and treatment systems. However, there have been no systematic studies of the performance of small treatment facilities compared with larger plants. A statistical analysis of 4 years of discharge monthly report (DMR) data from 210 operating wastewater treatment facilities was conducted to determine the effect of average flow rate and capacity utilization on effluent biochemical oxygen demand (BOD), total suspended solids (TSS), ammonia, and fecal coliforms relative to permitted values. Relationships were quantified using generalized linear models (GLMs). Small facilities (40 m³/d) had violation rates greater than 10 times that of the largest facilities (400,000 m³/d) for BOD, TSS, and ammonia. For facilities with average flows less than 40,000 m³/d, increasing capacity utilization was correlated with increased effluent levels of BOD and TSS. Larger facilities tended to operate at flows closer to their design capacity while maintaining treatment suggesting greater efficiency. Copyright © 2011 Elsevier Ltd. All rights reserved.

  2. Dual-energy CT of head and neck cancer: average weighting of low- and high-voltage acquisitions to improve lesion delineation and image quality-initial clinical experience.

    Science.gov (United States)

    Tawfik, Ahmed M; Kerl, J Matthias; Bauer, Ralf W; Nour-Eldin, Nour-Eldin; Naguib, Nagy N N; Vogl, Thomas J; Mack, Martin G

    2012-05-01

    Mixing low- and high-voltage acquisitions of dual-energy CT (DECT) scan using different weighting factors leads to differences in attenuation values and image quality. The aim of this work was to evaluate whether average weighting of DECT acquisitions could improve delineation of head and neck cancer and image quality. Among 60 consecutive patients who underwent DECT scan of the head and neck, 35 patients had positive findings and were included in the study. Images were reconstructed as pure 80 kVp, pure Sn140 kVp, and weighted-average (WA) image datasets from low- and high-voltage acquisitions using 3 different weighting factors (0.3, 0.6, 0.8) incorporating 30%, 60%, 80% from the 80 kVp data, respectively. Lesion contrast-to-noise ratio (CNR), attenuation measurements, and objective noise were compared between different image datasets. Two independent blinded radiologists subjectively rated the overall image quality of each image dataset on a 5-point grading scale comprising lesion delineation, image sharpness, and subjective noise. Mean venous and tumor enhancement and muscle attenuation increased stepwise with decreasing tube voltage from Sn140 kVp through 80 kVp. CNR increased significantly from Sn140 kVp to weighting factor 0.3 then to weighting factor 0.6 (P acquisition.

  3. On the suitability of an allometric proxy for nondestructive estimation of average leaf dry weight in eelgrass shoots I: sensitivity analysis and examination of the influences of data quality, analysis method, and sample size on precision.

    Science.gov (United States)

    Echavarría-Heras, Héctor; Leal-Ramírez, Cecilia; Villa-Diharce, Enrique; Cazarez-Castro, Nohe

    2018-03-06

    The effects of current anthropogenic influences on eelgrass (Zostera marina) meadows are noticeable. Eelgrass ecological services grant important benefits for mankind. Preservation of eelgrass meadows include several transplantation methods. Evaluation of establishing success relies on the estimation of standing stock and productivity. Average leaf biomass in shoots is a fundamental component of standing stock. Existing methods of leaf biomass measurement are destructive and time consuming. These assessments could alter shoot density in developing transplants. Allometric methods offer convenient indirect assessments of individual leaf biomass. Aggregation of single leaf projections produce surrogates for average leaf biomass in shoots. Involved parameters are time invariant, then derived proxies yield simplified nondestructive approximations. On spite of time invariance local factors induce relative variability of parameter estimates. This influences accuracy of surrogates. And factors like analysis method, sample size and data quality also impact precision. Besides, scaling projections are sensitive to parameter fluctuation. Thus the suitability of the addressed allometric approximations requires clarification. The considered proxies produced accurate indirect assessments of observed values. Only parameter estimates fitted from raw data using nonlinear regression, produced robust approximations. Data quality influenced sensitivity and sample size for an optimal precision. Allometric surrogates of average leaf biomass in eelgrass shoots offer convenient nondestructive assessments. But analysis method and sample size can influence accuracy in a direct manner. Standardized routines for data quality are crucial on granting cost-effectiveness of the method.

  4. Quality factor improvement of silicon nitride micro string resonators

    DEFF Research Database (Denmark)

    Schmid, Silvan; Malm, Bjarke; Boisen, Anja

    2011-01-01

    Resonant micro and nano strings are of interest for sensor applications due to their extraordinary high quality factors, low mass and tunable resonant frequency. It has been found that the quality factor of strings is usually limited by clamping loss. In this work, clamping loss has been addressed...... by varying the clamping design and string geometry. We present silicon nitride micro strings with quality factors (Q) of up to 4 million in high vacuum achieved by minimizing clamping loss. For applications such as for chemical sensing, strings need to vibrate at atmospheric pressure. Maximal quality factor...

  5. Radiation quality factor of spherical antennas with material cores

    DEFF Research Database (Denmark)

    Hansen, Troels Vejle; Kim, Oleksiy S.; Breinbjerg, Olav

    2011-01-01

    This paper gives a description of the radiation quality factor and resonances of spherical antennas with material cores. Conditions for cavity and radiating resonances are given, and a theoretical description of the radiation quality factor, as well as simple expressions describing the relative...... increase in quality factor due to the effect of the internally stored energy are given in special cases. For the air-core antenna of vanishing size, it is shown that the dipole modes are the modes providing the lowest quality factor of all modes. Finally an investigation of the effect of the core...

  6. Backus and Wyllie Averages for Seismic Attenuation

    Science.gov (United States)

    Qadrouh, Ayman N.; Carcione, José M.; Ba, Jing; Gei, Davide; Salim, Ahmed M.

    2018-01-01

    Backus and Wyllie equations are used to obtain average seismic velocities at zero and infinite frequencies, respectively. Here, these equations are generalized to obtain averages of the seismic quality factor (inversely proportional to attenuation). The results indicate that the Wyllie velocity is higher than the corresponding Backus quantity, as expected, since the ray velocity is a high-frequency limit. On the other hand, the Wyllie quality factor is higher than the Backus one, following the velocity trend, i.e., the higher the velocity (the stiffer the medium), the higher the attenuation. Since the quality factor can be related to properties such as porosity, permeability, and fluid viscosity, these averages can be useful for evaluating reservoir properties.

  7. Factors affecting the quality of cryoprecipitate

    Directory of Open Access Journals (Sweden)

    Rajeswari Subramaniyan

    2017-01-01

    Conclusion: The factor VIII recovery in CRYO improves significantly with higher baseline factor VIII: C levels, blood group A donor, and rapid freezing using blast freezer. Rapid freezing also increases the fibrinogen yield.

  8. Factor selection for service quality evaluation: a hospital case study.

    Science.gov (United States)

    Ameryoun, Ahmad; Najafi, Seyedvahid; Nejati-Zarnaqi, Bayram; Khalilifar, Seyed Omid; Ajam, Mahdi; Ansarimoghadam, Ahmad

    2017-02-13

    Purpose The purpose of this paper is to develop a systematic approach to predict service quality dimension's influence on service quality using a novel analysis based on data envelopment and SERVQUAL. Design/methodology/approach To assess hospital service quality in Tehran, expectation and perception of those who received the services were evaluated using SERVQUAL. The hospital service quality dimensions were found by exploratory factor analysis (EFA). To compare customer expectation and perception, perceived service quality index (PSQI) was measured using a new method based on common weights. A novel sensitivity approach was used to test the service quality factor's impact on the PSQI. Findings A new service quality dimension named "trust in services" was found using EFA, which is not an original SERVQUAL factor. The approach was applied to assess the hospital's service quality. Since the PSQI value was 0.76 it showed that improvements are needed to meet customer expectations. The results showed the factor order that affect PSQI. "Trust in services" has the strongest influence on PSQI followed by "tangibles," "assurance," "empathy," and "responsiveness," respectively. Practical implications This work gives managers insight into service quality by following a systematic method; i.e., measuring perceived service quality from the customer viewpoint and service factors' impact on customer perception. Originality/value The procedure helps managers to select the required service quality dimensions which need improvement and predict their effects on customer perception.

  9. Factors Affecting Quality of Audit; Empirical Evidence from Iran ...

    African Journals Online (AJOL)

    This study examines factors affecting quality of audit using empirical evidence from Iran Quality of audit was seen as the degree to which an audit report is free from deficiencies and distortions which show up later on. The quality of an audit was measured in terms of an auditor's ability to report financial distortions willingly ...

  10. Factors Affecting Time, Cost and Quality Management in Building ...

    African Journals Online (AJOL)

    The study is an assessment of time, cost and quality management in the Nigerian construction industry, and it aims to explore time cost and quality management in the construction industry. The objective of the study is to identify factors affecting time; cost and quality management in building construction projects. This study ...

  11. Understanding the Institutional-Level Factors of Urban School Quality

    Science.gov (United States)

    Gottfried, Michael A.

    2012-01-01

    Background/Context: This article addresses which school-level factors contribute to school quality. Previous research has focused on assessing the effects of school-level variables on student-level quality (e.g., achievement). However, the field has been limited in not evaluating the effects of school-level factors directly on measured…

  12. CELL AVERAGING CFAR DETECTOR WITH SCALE FACTOR CORRECTION THROUGH THE METHOD OF MOMENTS FOR THE LOG-NORMAL DISTRIBUTION

    Directory of Open Access Journals (Sweden)

    José Raúl Machado Fernández

    2018-01-01

    Full Text Available Se presenta el nuevo detector LN-MoM-CA-CFAR que tiene una desviación reducida en la tasa de probabilidad de falsa alarma operacional con respecto al valor concebido de diseño. La solución corrige un problema fundamental de los procesadores CFAR que ha sido ignora-do en múltiples desarrollos. En efecto, la mayoría de los esquemas previamente propuestos tratan con los cambios bruscos del nivel del clutter mientras que la presente solución corrige los cambios lentos estadísticos de la señal de fondo. Se ha demostrado que estos tienen una influencia marcada en la selección del factor de ajuste multiplicativo CFAR, y consecuen-temente en el mantenimiento de la probabilidad de falsa alarma. Los autores aprovecharon la alta precisión que se alcanza en la estimación del parámetro de forma Log-Normal con el MoM, y la amplia aplicación de esta distribución en la modelación del clutter, para crear una arquitectura que ofrece resultados precisos y con bajo costo computacional. Luego de un procesamiento intensivo de 100 millones de muestras Log-Normal, se creó un esquema que, mejorando el desempeño del clásico CA-CFAR a través de la corrección continua de su fac-tor de ajuste, opera con una excelente estabilidad alcanzando una desviación de solamente 0,2884 % para la probabilidad de falsa alarma de 0,01.

  13. Factors Determining e-Learning Service Quality

    Science.gov (United States)

    Uppal, Muhammad Amaad; Ali, Samnan; Gulliver, Stephen R.

    2018-01-01

    e-Learning courses are fast becoming common-place, yet the success of these online courses varies considerably. Since limited research addresses the issue of e-learning quality (ELQ) of service in higher education environments, there is an increasing need to effectively assess ELQ. In this paper, we argue that to obtain a satisfactory e-learning…

  14. Damping scaling factors for elastic response spectra for shallow crustal earthquakes in active tectonic regions: "average" horizontal component

    Science.gov (United States)

    Rezaeian, Sanaz; Bozorgnia, Yousef; Idriss, I.M.; Abrahamson, Norman; Campbell, Kenneth; Silva, Walter

    2014-01-01

    Ground motion prediction equations (GMPEs) for elastic response spectra are typically developed at a 5% viscous damping ratio. In reality, however, structural and nonstructural systems can have other damping ratios. This paper develops a new model for a damping scaling factor (DSF) that can be used to adjust the 5% damped spectral ordinates predicted by a GMPE for damping ratios between 0.5% to 30%. The model is developed based on empirical data from worldwide shallow crustal earthquakes in active tectonic regions. Dependencies of the DSF on potential predictor variables, such as the damping ratio, spectral period, ground motion duration, moment magnitude, source-to-site distance, and site conditions, are examined. The strong influence of duration is captured by the inclusion of both magnitude and distance in the DSF model. Site conditions show weak influence on the DSF. The proposed damping scaling model provides functional forms for the median and logarithmic standard deviation of DSF, and is developed for both RotD50 and GMRotI50 horizontal components. A follow-up paper develops a DSF model for vertical ground motion.

  15. THE FACTORS FORMING QUALITY OF GRANULATED SUGAR

    Directory of Open Access Journals (Sweden)

    N. G. Kulneva

    2015-01-01

    Full Text Available Sugar, with good taste and high caloric, is one of the most popular human food. Consumers sugar must be sure that the sugar under normal conditions of use is of high quality and is not harmful to the health of the product. One reason for the decline in the quality of sugar is bacterial contamination. This is because the sugar industry products are good targets for the development of different groups of microorganisms, e.g., Bacillus subtilis, Clostridium perfringes, Leuconostoc dextranicum, Torula alba, Pseudomonas fluorescens, Sarcina lutea and others. These organisms are affected with beets, and then with sugar beet chips and diffusion juice fall into the processing line of sugar production. Their number in the diffusion juice varies and depends on many facto rs such as the quality of raw materials, the quality of cleaning beet root colonization of transporter-washing and the supply of water to the diffusion process, the temperature of the diffusion and others. In the diffusion unit has the most favorable conditions for the development of micro-organisms. Some of them, especially resistant bacteria and thermophilic bacteria or their spores, forming a capsule which protects against external influences occur in the final product sugar. When injected into the fresh crop of product (juice, syrup, they begin to multiply rapidly, causing difficulties in the process. The higher seeding beet microorganisms, the more they decompose and emit sucrose metabolism byproducts. To reduce the negative impact of microbiological and reduce losses from decomposition of sucrose conducted research on the possibility of using chlorine-containing substances in the sugar industry. It was established experimentally that the investigated chlorinated drug has bacteriostatic action and can be recommended for use in sugar beet production.

  16. Factors affecting quality of life in Hungarian adults with epilepsy

    DEFF Research Database (Denmark)

    Kováts, Daniella; Császár, Noémi; Haller, József

    2017-01-01

    PURPOSE: We investigated the impact of 19 factors on life quality in Hungarian patients with epilepsy. Wellbeing was evaluated by several inventories to investigate the impact of factors in more detail. METHODS: A cross-sectional study was performed in 170 patients. Wellbeing was evaluated...... with the WHO-5 Well-being Index (WHOQOL-5), Diener Satisfaction with Life Scale (SwLS), and the Quality of Life in Epilepsy-31 Questionnaire (Qolie-31). We investigated their association with demographic characteristics, general health status, epilepsy, and its treatment. The impact of these factors on illness...... associations with epilepsy-related factors. All four categories of factors were associated with Qolie-31 and IPQ scores. Factors had an additive impact on IPQ, but not on Qolie-31. SIGNIFICANCE: Our findings reveal interactions between the method of life quality assessment and the factors that are identified...

  17. Evaluation of diet quality of the elderly and associated factors.

    Science.gov (United States)

    Pinto de Souza Fernandes, Dalila; Duarte, Maria Sônia Lopes; Pessoa, Milene Cristine; Franceschini, Sylvia do Carmo Castro; Ribeiro, Andréia Queiroz

    2017-09-01

    Observational studies suggest healthy dietary patterns are associated with risk reduction and better control of various chronic diseases. However, few Brazilian studies have focused on evaluating the quality of the elderly diet and its relationship with diseases. This study aimed to estimate the association between diet quality and socioeconomic factors, health and nutrition of the elderly. This is a cross-sectional population-based study whose target population were non-institutionalized elderly residents in the city of Viçosa, Brazil. Anthropometric, socioeconomic, health conditions, lifestyle and food consumption variables were obtained from a semi-structured questionnaire. The quality of the diet was assessed by the revised Healthy Eating Index classified into tertiles, considering the first tertile as "Poor diet quality," the second as 'Intermediate diet quality' and the third as "Better diet quality." To identify factors independently associated with diet quality model, the works used multinomial logistic regression. In the results of the multivariate analysis, the factors independently associated with "better diet quality" included female gender, higher education, history of one to five medical visits in the past year, history of diabetes mellitus, dyslipidemia and the use of polypharmacy. Our results show that most seniors need to improve the quality of their diet and those of male gender with no or little education, and those who do not seek medical services constitute the group that needs attention concerning the measures to improve the quality of their diet. Copyright © 2017 Elsevier B.V. All rights reserved.

  18. Non-relativistic Free–Free Emission due to the n -distribution of Electrons—Radiative Cooling and Thermally Averaged and Total Gaunt Factors

    Energy Technology Data Exchange (ETDEWEB)

    De Avillez, Miguel A. [Department of Mathematics, University of Évora, R. Romão Ramalho 59, 7000 Évora (Portugal); Breitschwerdt, Dieter, E-mail: mavillez@galaxy.lca.uevora.pt [Zentrum für Astronomie und Astrophysik, Technische Universität Berlin, Hardenbergstrasse 36, D-10623 Berlin (Germany)

    2017-09-01

    Tracking the thermal evolution of plasmas, characterized by an n -distribution, using numerical simulations, requires the determination of the emission spectra and of the radiative losses due to free–free emission from the corresponding temperature-averaged and total Gaunt factors. Detailed calculations of the latter are presented and associated with n -distributed electrons with the parameter n ranging from 1 (corresponding to the Maxwell–Boltzmann distribution) to 100. The temperature-averaged and total Gaunt factors with decreasing n tend toward those obtained with the Maxwell–Boltzmann distribution. Radiative losses due to free–free emission in a plasma evolving under collisional ionization equilibrium conditions and composed by H, He, C, N, O, Ne, Mg, Si, S, and Fe ions, are presented. These losses decrease with a decrease in the parameter n , reaching a minimum when n  = 1, and thus converge with the loss of thermal plasma. Tables of the thermal-averaged and total Gaunt factors calculated for n -distributions, and a wide range of electron and photon energies, are presented.

  19. Additional quality factors for the World Wide Web.

    OpenAIRE

    Fitzpatrick, Ronan

    2000-01-01

    Web site development is maturing from the enthusiastic experimental practice of early years to a more professional discipline, addressing the needs of Web site visitors and owner organisations. Quality is central to this maturing and it is necessary to have a full understanding of the meaning of quality in the context of the ever-changing Web. This paper identifies five new quality factors for the Web (visibility, credibility, intelligibility, engagibility and differentiation), together with ...

  20. Iranian Voice Quality of Life Profile (IVQLP): Factor Analysis.

    Science.gov (United States)

    Dehqan, Ali; Yadegari, Fariba; Scherer, Ronald C; Asgari, Ali; Dabirmoghadam, Payman

    2017-09-01

    An important domain in health-related quality of life evaluations is quality of life perceptions due to having a voice disorder. The objective of this study was to examine the factor structure of the Iranian Voice Quality of Life Profile (IVQLP) based on Exploratory Factor Analysis and confirmatory factor analysis. The study sample consisted of 280 patients (174 males and 106 females) diagnosed with MTD, benign organic disorders such as polyps and nodules, and unilateral vocal fold paralysis and cancer. To evaluate the different dimensions of the IVQLP, a principal component analysis (PCA) was conducted. Confirmatory factor analysis (CFA) was used to investigate the fitting of extracted dimensions and construct validity of the IVQLP. The results showed that the IVQLP has a 4-factor structure. The first factor has 17 items and refers to Emotions. The second factor has 12 items and refers to Individual/Social Relations. The third factor with 6 items refers to Occupation, and the forth with 5 items relates to Psychosomatic characteristics. The conclusion of this study is that the concept of quality of life in Iranian patients with voice disorders is somewhat different from that of Western patients. This difference can be seen in. the large number of items related to an Emotional factor and the identification of a Psychosomatic factor. Copyright © 2017 The Voice Foundation. All rights reserved.

  1. Factors impacting on the microbiological quality and safety of ...

    African Journals Online (AJOL)

    Problems with the safety and shelf life of export hake have been raised by the Namibian fishing industry. This prompted an investigation into the factors that may have an impact on the microbiological quality and safety of processed hake. Samples were collected along the processing line; the general microbiological quality ...

  2. Factors Affecting Soil Quality Maintenance in Northern Katsina State ...

    African Journals Online (AJOL)

    Factors affecting soil quality maintenance in the area according to the findings are natural and man-induced, including agricultural practices in general and deforestation, soil degradation and erosion, as well as biodiversity loss in particular. The results also indicated that values of the selected elements affecting soil quality ...

  3. Surface water quality assessment using factor analysis | Boyacioglu ...

    African Journals Online (AJOL)

    In this study, the factor analysis technique is applied to surface water quality data sets obtained from the Buyuk Menderes River Basin, Turkey, during two different hydrological periods. Results show that the indices which changed the quality of water in two seasons and locations differed. During low-flow conditions, water ...

  4. Factors associated with poor sleep quality in women with cancer.

    Science.gov (United States)

    Mansano-Schlosser, Thalyta Cristina; Ceolim, Maria Filomena

    2017-03-02

    to analyze the factors associated with poor sleep quality, its characteristics and components in women with breast cancer prior to surgery for removing the tumor and throughout the follow-up. longitudinal study in a teaching hospital, with a sample of 102 women. The following were used: a questionnaire for sociodemographic and clinical characterization, the Pittsburgh Sleep Quality Index; the Beck Depression Inventory; and the Herth Hope Scale. Data collection covered from prior to the surgery for removal of the tumor (T0) to T1, on average 3.2 months; T2, on average 6.1 months; and T3, on average 12.4 months. Descriptive statistics and the Generalized Estimating Equations model were used. depression and pain contributed to the increase in the score of the Pittsburgh Sleep Quality Index, and hope, to the reduction of the score - independently - throughout follow-up. Sleep disturbances were the component with the highest score throughout follow-up. the presence of depression and pain, prior to the surgery, contributed to the increase in the global score of the Pittsburgh Sleep Quality Index, which indicates worse quality of sleep throughout follow-up; greater hope, in its turn, influenced the reduction of the score of the Pittsburgh Sleep Quality Index. analizar los factores asociados a la mala calidad del sueño, sus características y componentes en mujeres con cáncer de mama, antes de la cirugía de retirada del tumor y a lo largo del seguimiento. estudio longitudinal, en hospital universitario con muestra de 102 mujeres. Fueron utilizados: un cuestionario de caracterización sociodemográfica y clínica; el Índice de Calidad del Sueño de Pittsburgh; el Inventario de Depresión de Beck; y la Escala de Esperanza de Herth. La recolección comprendió los momentos: antes de la cirugía de retirada del tumor (T0), en (T1) en promedio 3,2 meses, en (T2) en promedio 6,1 meses y en (T3) en promedio 12,4 meses. Se utilizó estadística descriptiva y el modelo de

  5. Climatic factors affecting quantity and quality grade of in vivo derived embryos of cattle.

    Science.gov (United States)

    Chinchilla-Vargas, Josué; Jahnke, Marianna M; Dohlman, Tyler M; Rothschild, Max F; Gunn, Patrick J

    2018-02-17

    The present study investigated the effects of climatic variables on the quality grade and quantity of in vivo derived cattle embryos in the Midwestern United States. Climatic information included greatest and least daily temperature, average daily wind speed and average temperature-humidity index for each of the 765 records. The response variables included the number of ovarian structures, viable embryos, quality grade 1 embryos, quality grade 2 embryos, quality grade 3 embryos, freezable embryos (sum of quality grade 1 and quality grade 2 embryos), transferable embryos (sum of quality grade 1-3 embryos), degenerate embryos and unfertilized ova. Measures for variables among the breeds of donors and sires grouped by geographical origin were compared. A negative effect of greater temperatures during the early embryonic development stage tended (P climatic variables have significant effects on the in vivo production of cattle embryos and that wind speed should be considered in future analyses of factors affecting embryo quality. Copyright © 2018 Elsevier B.V. All rights reserved.

  6. Approaching Safety through Quality: Factors Influencing College Student Perceptions.

    Science.gov (United States)

    Ramaswamy, S K; Mosher, G A

    2016-04-01

    Quality management practices have been identified by previous literature as a factor that could potentially reduce the level of safety incidents and hazards in agricultural work environments. The present study used multivariate analysis to examine the effect of independent variables such as quality and safety awareness, work experience, safety and quality management experience, and the perceived importance of safety and quality on the role of quality management practices as a mitigating factor for safety hazards and incidents in agriculture. Variables were measured on a five-point scale using a survey questionnaire. Data were collected from approximately 900 undergraduates enrolled in the College of Agriculture and Life Sciences at a large land grant university in the U.S. The level of student work experience and student perceptions of the importance of quality explained a significant amount of the variance in student views of quality management practices as a mitigating factor for safety hazards and incidents. The findings of this study provide further evidence for using quality management practices as a basis for safety interventions targeted at the agricultural workforce.

  7. Preadoptive factors predicting lesbian, gay, and heterosexual couples' relationship quality across the transition to adoptive parenthood.

    Science.gov (United States)

    Goldberg, Abbie E; Smith, Julianna Z; Kashy, Deborah A

    2010-06-01

    The authors examined preadoptive factors as predictors of relationship quality (love, ambivalence, and conflict) among 125 couples (44 lesbian couples, 30 gay male couples, and 51 heterosexual couples) across the 1st year of adoptive parenthood. On average, all new parents experienced declines in their relationship quality across the 1st year of parenthood regardless of sexual orientation, with women experiencing steeper declines in love. Parents who, preadoption, reported higher levels of depression, greater use of avoidant coping, lower levels of relationship maintenance behaviors, and less satisfaction with their adoption agencies reported lower relationship quality at the time of the adoption. The effect of avoidant coping on relationship quality varied by gender. Parents who, preadoption, reported higher levels of depression, greater use of confrontative coping, and higher levels of relationship maintenance behaviors reported greater declines in relationship quality. These findings have implications for professionals who work with adoptive parents both pre- and postadoption. (c) 2010 APA, all rights reserved.

  8. Quality attributes and socio-demographic factors affecting channel choices

    OpenAIRE

    Lupín, Beatriz; Rodríguez, Elsa Mirta M.

    2012-01-01

    Potato is an important staple food and horticultural crop for Argentina and it is included in almost every meal prepared by households. The annual average per capita consumption of potatoes is 40 kg. Despite the rapid rise of supermarkets, small fruit and vegetable shops still dominate horticultural retail in Argentina. The fresh potato quality is a wide and subjective notion that deals with different kinds of attributes e.g., colour, flavor, nutritional contents, added substances during the ...

  9. DETERMINANT FACTORS OF FINANCIAL REPORTING QUALITY AND ECONOMIC CONSEQUENCES

    Directory of Open Access Journals (Sweden)

    Zaenal Fanani

    2017-03-01

    Full Text Available The aim of this research was to prove empirically the determining factors that influence the quality of financialreporting and the economic consequences, and there were influence differences of quality attributes of financialreporting to the economic consequences. The research samples were taken by purposive sampling so it obtained141 listed manufacturing businesses from 2001 to 2006. The research used four data analysis technique:auxiliary regression R2, confirmatory factor analysis, simple regression, and multiple regressions. The resultsshowed seven attributes, there were five attributes that gave contribution for financial reporting quality namelyaccrual quality, predictability, smoothness, relevance value, and conservatism while the persistence and timelinessgave small contribution. The five attributes were also different each other. From the thirteen determiningfactors, it showed nine factors that produced significant influences namely operation cycle, sales volatility,firm size, firm age, loss proportion, leverage, environmental risk, institutional ownership, market concentration,and auditor quality, while the other three, they were liquidity, managerial ownership, and investmentgrowth that were not significant. Testing results of economic consequences of quality of financial reportingshowed that the quality of factorial financial reporting influenced negatively and significantly toward informationasymmetry.

  10. The geographical factor in the determination of audit quality

    Directory of Open Access Journals (Sweden)

    Antonio luis duréndez gómez-guillamón

    2012-07-01

    Full Text Available The aim of this research paper is to analyze the role of the spatial factor in the determination of audit quality. Concretely, we hypothesize that audit quality is influenced by location and by the existence of spill-over effects generated by two factors: (1 the specialization and reputation of auditing firms and (2 the economic and institutional development of the audit firm's location. We developed an empirical research to test the existence of such spatial effects (location and spill-over on a representative sample of the Spanish audit market. The study includes spatial econometric techniques taking into account the auditee specific characteristics, as well as other external factors. The findings highlight the relevance of including the spatial dimension when the audit quality is being studied. The results confirm the existence of a location effect according to the highest quality values are found in the most developed Spanish areas. Furthermore, we find a spatial spill-over effect among regions, affecting audit quality values. This effect confirms that audit quality within a location spreads to its surroundings. The results support the promotion of governmental policies leading to improve audit quality considering the spill-over effect.

  11. Prevalence of poor sleep quality, sleepiness and obstructive sleep apnoea risk factors in athletes.

    Science.gov (United States)

    Swinbourne, Richard; Gill, Nicholas; Vaile, Joanna; Smart, Daniel

    2016-10-01

    Despite the perceived importance of sleep for athletes, little is known regarding athlete sleep quality, their prevalence of daytime sleepiness or risk factors for obstructive sleep apnoea (OSA) such as snoring and witnessed apnoeic episodes. The purpose of the present study was to characterise normative sleep quality among highly trained team sport athletes. 175 elite or highly trained rugby sevens, rugby union and cricket athletes completed the Pittsburgh Sleep Quality Index (PSQI), Epworth Sleepiness Score (ESS) and Quality of Life questionnaires and an OSA risk factor screen. On average, athletes reported 7.9 ± 1.3 h of sleep per night. The average PSQI score was 5.9 ± 2.6, and 50% of athletes were found to be poor sleepers (PSQI > 5). Daytime sleepiness was prevalent throughout the population (average global score of 8.5) and clinically significant (ESS score of ≥10) in 28% of athletes. OSA may be an important clinical consideration within athletic populations, as a considerable number of athletes (38%) defined themselves as snorers and 8% reported having a witnessed apnoeic episode. The relationship between self-rated sleep quality and actual PSQI score was strong (Pearson correlation of 0.4 ± 0.1, 90% confidence limits). These findings suggest that this cohort of team sport athletes suffer a preponderance of poor sleep quality, with associated high levels of daytime sleepiness. Athletes should receive education about how to improve sleep wake schedules, extend total sleep time and improve sleep quality.

  12. URBAN LANDSCAPE QUALITY AND FACTORS THAT HAVE INFLUENCE ON LANDSCAPE QUALITY IN LATGALE REGION

    OpenAIRE

    Matisovs, Ivars

    2005-01-01

    The paper deals with urban landscape individualities in the cities and towns of Latgale region. Also show facilities and methods of integrated assessment of urban landscape quality. Article provides information about specifics of urban landscape and factors, that have influence on landscape quality. The paper presents the results of Daugavpils and Rēzekne urban landscape quality complex assessment, that have been realised in 2003- 2005. This results don’t establish significant disparities bet...

  13. High quality factor, fully switchable terahertz superconducting metasurface

    Energy Technology Data Exchange (ETDEWEB)

    Scalari, G., E-mail: scalari@phys.ethz.ch; Maissen, C.; Faist, J. [Institute of Quantum Electronics, Eidgenössische Technische Hochschule Zürich (Switzerland); Cibella, S.; Leoni, R. [Istituto di Fotonica e Nanotecnologie (IFN), CNR, via Cineto Romano 42, 00156 Rome (Italy)

    2014-12-29

    We present a complementary THz metasurface realised with Niobium thin film which displays a quality factor Q = 54 and a fully switchable behaviour as a function of the temperature. The switching behaviour and the high quality factor are due to a careful design of the metasurface aimed at maximising the ohmic losses when the Nb is above the critical temperature and minimising the radiative coupling. The superconductor allows the operation of the cavity with high Q and the use of inductive elements with a high aspect ratio. Comparison with three dimensional finite element simulations highlights the crucial role of the inductive elements and of the kinetic inductance of the Cooper pairs in achieving the high quality factor and the high field enhancement.

  14. FACTORS DESCRIBING STUDENTS´ PERCEPTION ON EDUCATION QUALITY STANDARDS

    Directory of Open Access Journals (Sweden)

    Lucie Vnoučková

    2017-12-01

    Full Text Available Education quality assurance is the necessity for today’s competitive environment in university education. Quality assurance standards and strategies are being used in most of universities and higher education institutions. But the perception of quality standards is being usually seen from the perspective of a university management. This study aims to analyze and present perceptions of students towards a measurement of education quality standards and to identify significant groups of students according to their preferences in education quality. Students’ questionnaires and focus groups collected the data. Two dimensional and multi-dimensional statistical methods were used to evaluate the results. The outputs show five groups of students based on their perception of the education quality. Examination of students’ interest in specific areas, subjects and courses leads to identification of factors which affect their preferences in education. The paper found five significant groups of perceived quality by students. These are Quality receptionists, Business oriented, Expert innovators, Distance learners and Arrangement oriented. Limit of the study is a narrow focus on one private university. This study may encourage other papers to develop and test further the impact of education quality on students’ preferences for measurable improvements. The paper is an extension of the conference paper presented on ERIE conference 2017.

  15. Project quality management critical success factors for buildings

    CERN Document Server

    Low, Sui Pheng

    2014-01-01

    The book presents the development of the Construction Quality Assessment System (CONQUAS), Singapore’s de facto quality performance measurement system, explains the application of the Quality Management System (QMS) to manage CONQUAS and identifies 33 critical success factors (CSFs) for achieving high CONQUAS scores. Through CONQUAS, the reader benefits from understanding how the Singapore government developed and implemented the first objective system for measuring what many building professionals have perceived to be elusive quality standards in the construction industry. The book presents both the theoretical concepts as well as the practical aspects to achieving strategic Project Quality Management that is anchored on the CSFs to building best practices. To realistically reflect the practical aspects and challenging issues faced by stakeholders in the construction industry, questionnaire surveys were conducted with building professionals to distinguish the importance level and extent of adoption of the ...

  16. Organisational factors affecting the quality of hospital clinical coding.

    Science.gov (United States)

    Santos, Suong; Murphy, Gregory; Baxter, Kathryn; Robinson, Kerin M

    The influence of organisational factors on the quality of hospital coding using the International Statistical Classification of Diseases and Health Related Problems, 10th Revision, Australian Modification (ICD-10-AM) was investigated using a mixed quantitative-qualitative approach. The organisational variables studied were: hospital specialty; geographical locality; structural characteristics of the coding unit; education, training and resource supports for Clinical Coders; and quality control mechanisms. Baseline data on the hospitals' coding quality, measured by the Performance Indicators for Coding Quality tool, were used as an independent index measure. No differences were found in error rates between rural and metropolitan hospitals, or general and specialist hospitals. Clinical Coder allocation to "general" rather than "specialist" unit coding resulted in fewer errors. Coding Managers reported that coding quality can be improved by: Coders engaging in a variety of role behaviours; improved Coder career opportunities; higher staffing levels; reduced throughput; fewer time constraints on coding outputs and associated work; and increased Coder interactions with medical staff.

  17. Key factors for a high-quality VR experience

    Science.gov (United States)

    Champel, Mary-Luc; Doré, Renaud; Mollet, Nicolas

    2017-09-01

    For many years, Virtual Reality has been presented as a promising technology that could deliver a truly new experience to users. The media and entertainment industry is now investigating the possibility to offer a video-based VR 360 experience. Nevertheless, there is a substantial risk that VR 360 could have the same fate as 3DTV if it cannot offer more than just being the next fad. The present paper aims at presenting the various quality factors required for a high-quality VR experience. More specifically, this paper will focus on the main three VR quality pillars: visual, audio and immersion.

  18. Factors affecting the quality of external auditing services

    OpenAIRE

    Alaraji Fedaa Abd Almajid Sabbar; Al-Dulaimi Zaid Yaseen Saud; Sabri Thamer Mahdi Muhamed; Ion Elena Iuliana

    2017-01-01

    This study is aim to adopt knowledge the specific concept to external audit quality and which are the factors that affecting on those qualities in the State of Iraq. As well as, to knowledge the range of depend this job in Iraq on international or local criterion to external audit quality or not. Also, to identify the satisfaction of interested parties about job of audit on service of external audit or not. According to viewpoint external audit the workers in this job and interested parties a...

  19. Factors associated with diet quality of older adults

    Directory of Open Access Journals (Sweden)

    Tatiana Império de FREITAS

    Full Text Available ABSTRACT Objective Evaluate the factors associated with diet quality of older adults from the city of São Caetano do Sul, São Paulo, Brazil. Methods A cross-sectional study was carried out on a sample of 295 older adults receiving care in health care units in São Caetano do Sul. Diet quality was assessed using the Brazilian Healthy Eating Index. The associations between the diet quality mean score and the socio-demographic, economic, and anthropometric characteristics and lifestyle and health conditions were verified using multiple linear regression. Results Lower diet quality mean score were associated with the variables: marital status (widowed or separated (β=-2.02; p=0.047, retired (β=-4.24; p=0.034, and smoking (β=-8.06; p=0.001; whereas higher diet quality mean score were associated with higher education level (9 years or more (β=3.49; p=0.013. Conclusion Individuals with higher education level had better diet quality, and those who were widowed or separated, retired, and smokers had worse diet quality indicating that socio-demographic, economic, and lifestyle are factors that can influence food choice of older adults.

  20. Deconstructing racial differences: the effects of quality of education and cerebrovascular risk factors.

    Science.gov (United States)

    Carvalho, Janessa O; Tommet, Doug; Crane, Paul K; Thomas, Michael L; Claxton, Amy; Habeck, Christian; Manly, Jennifer J; Romero, Heather R

    2015-07-01

    To evaluate the effects of vascular conditions and education quality on cognition over time in White and African American (AA) older adults. We investigated cross-sectional and longitudinal racial differences in executive functioning (EF) and memory composites among Whites (n = 461) and AAs (n = 118) enrolled in a cohort study. We examined whether cerebrovascular risk factors and Shipley Vocabulary scores (a proxy for education quality) accounted for racial differences. On average, AAs had lower quality of education and more cerebrovascular risk factors including hypertension, diabetes, and obesity. AAs had lower mean EF and memory at baseline, but there were no group differences in rates of decline. Cross-sectional racial differences in EF and memory persisted after controlling for vascular disease, but disappeared when controlling for Shipley Vocabulary. Quality of education appears to be more important than cerebrovascular risk factors in explaining cross-sectional differences in memory and EF performance between White and AA older adults. Further investigation is needed regarding the relative contribution of education quality and cerebrovascular risk factors to cognitive decline among ethnically/racially diverse older adults. © The Author 2014. Published by Oxford University Press on behalf of The Gerontological Society of America. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.

  1. Quantification frameworks and their application for evaluating the software quality factor using quality characteristic value

    International Nuclear Information System (INIS)

    Kim, C.; Chung, C.H.; Won-Ahn, K.

    2004-01-01

    Many problems, related with safety, frequently occur because Digital Instrument and Control Systems are widely used and expanding their ranges to many applications in Nuclear Power Plants. It, however, does not hold a general position to estimate an appropriate software quality. Thus, the Quality Characteristic Value, a software quality factor through each software life cycle, is suggested in this paper. The Quality Characteristic Value is obtained as following procedure: 1) Scoring Quality Characteristic Factors (especially correctness, traceability, completeness, and understandability) onto Software Verification and Validation results, 2) Deriving the diamond-shaped graphs by setting values of Factors at each axis and lining every points, and lastly 3) Measuring the area of the graph for Quality Characteristic Value. In this paper, this methodology is applied to Plant Control System. In addition, the series of quantification frameworks exhibit some good characteristics in the view of software quality factor. More than any thing else, it is believed that introduced framework may be applicable to regulatory guide, software approval procedures, due to its soundness and simple characteristics. (authors)

  2. Survey of Quality of Life and Influencing Factors in Alborz University of Medical Sciences Staff

    Directory of Open Access Journals (Sweden)

    S. Amiri

    2014-01-01

    Full Text Available Background & Aims: Quality of life is a concept beyond the physical health. It is an important index in health research that its independent quantification as an important outcome is essential. Work environment consists of physical, mental and social stimuli and each of these factors can cause stress. These stresses and pressures have inappropriate effects on physical–emotional welfare, health and its function. Therefore, this study was performed on the Faculty of Medicine of Karaj staffs in 1390 to investigate their quality of life and the governing factors. Materials and Methods: In this descriptive and sectional study, a group of 100 of Faculty of Medicine and of Alborz University of Medical Sciences employees were participated. Sampling was done as census. Data collection was performed by means of the questionnaire of standard of quality of life (WHOQOL-BREF and the questionnaire of demographic information collected. Results: The results show that 51 percent of the employees have reported their quality of life in the average range and 6% in poor range. Furthermore, in the physical aspect of quality of life, 34% of the results are good, 59% moderate and the remaining 7% are poor. Likewise, in the quality of life from psychological aspect, 33% of the results are good, 64 percent moderate, and only 3% are poor. The data for the social relationships aspect are 28% good, 59% moderate, and 13% poor. Finally, in the quality of life from environmental health aspect, 36% of the staffs reported good, 55% moderate, and 9% poor condition. Pearson’s test results show that there is a meaningful correlation between the quality of life and the lower number of children, and also increasing years of service (P=0.00. However, the quality of life does not show any significant relationship with age and income. ANOVA test results indicate that there is a significant relationship between quality of life and the type of employment (P=0.017. Conclusion: Quality

  3. Application of factor analysis to the water quality in reservoirs

    Science.gov (United States)

    Silva, Eliana Costa e.; Lopes, Isabel Cristina; Correia, Aldina; Gonçalves, A. Manuela

    2017-06-01

    In this work we present a Factor Analysis of chemical and environmental variables of the water column and hydro-morphological features of several Portuguese reservoirs. The objective is to reduce the initial number of variables, keeping their common characteristics. Using the Factor Analysis, the environmental variables measured in the epilimnion and in the hypolimnion, together with the hydromorphological characteristics of the dams were reduced from 63 variables to only 13 factors, which explained a total of 83.348% of the variance in the original data. After performing rotation using the Varimax method, the relations between the factors and the original variables got clearer and more explainable, which provided a Factor Analysis model for these environmental variables using 13 varifactors: Water quality and distance to the source, Hypolimnion chemical composition, Sulfite-reducing bacteria and nutrients, Coliforms and faecal streptococci, Reservoir depth, Temperature, Location, among other factors.

  4. Normal modes and quality factors of spherical dielectric resonators: I ...

    Indian Academy of Sciences (India)

    Parameters suitable for their application in the optical and microwave frequency ranges have been used to compute the frequencies corresponding to the normal modes for the TE and TM modes. Expressions for the quality factors for realistic resonators, i.e., for a dielectric sphere with a non-zero conductivity and a metal ...

  5. Sexually transmitted infections - factors associated with quality of ...

    African Journals Online (AJOL)

    Objectives: To study the factors associated with quality of sexually transmitted infection (STI) care among private general practitioners in Gauteng. Methods: We analysed 1 194 records of patients attending 26 randomly selected GP practices in the first 3 months of 2000 and 2002, for 3 STI syndromes, namely urethral ...

  6. Factors Affecting Soil Quality Maintenance In Northern Katsina State

    African Journals Online (AJOL)

    Factors affecting soil quality maintenance in the area according to the findings are natural and man-induced, including agricultural practices in general and ..... Global warming. 5. 3.03. Total. 165. 100. As the presence of vegetation helps to shield the soil from the direct ray of the sun so it helps to act as wind-brake. The.

  7. A simple quality factor for characterization of thin silicon films

    Czech Academy of Sciences Publication Activity Database

    Kočka, Jan; Mates, Tomáš; Ledinský, Martin; Stuchlíková, The-Ha; Stuchlík, Jiří; Fejfar, Antonín

    2008-01-01

    Roč. 354, 19-25 (2008), s. 2227-2230 ISSN 0022-3093 R&D Projects: GA MŽP(CZ) SN/3/172/05 Keywords : microcrystalline silicon * deposition process * high growth rate * quality evaluation Subject RIV: BM - Solid Matter Physics ; Magnetism Impact factor: 1.449, year: 2008

  8. FACTORS AFFECTING WATER QUALITY IN A WATER SUPPLY NETWORK

    Directory of Open Access Journals (Sweden)

    Artur Jachimowski

    2017-07-01

    Full Text Available An effect of factors determining water quality in the water supply network in Kraków is assessed. Data collected over a four-year research period included quality parameters of water taken from the water distribution system in the period between 1 January 2011 and 31 December 2014. In analysis the supply zones of four municipal water treatment plants in Krakow were considered. The selection of 29 water sampling points within the supply area allowed water quality to to be compared with respect to operational and technological aspects. Factor analysis enabled 4 components explaining correlations between tap water quality variables to be distinguished. It follows from the research performed that the obtained factors applied to 77% of overall water variability. The highest share was assigned to factor 1 that explained in 32% the chemical composition of water under consideration and was correlated with calcium, conductance, nitrates (V, magnesium and to a moderate extent with ∑ THM (with negative sign.

  9. DEPENDENCE RELATIONSHIP BETWEEN THE CRITICAL QUALITY FACTORS AND SOCIAL IMPACT

    Directory of Open Access Journals (Sweden)

    José Álvarez García

    2014-10-01

    Full Text Available This paper shows the results of the empirical study conducted in 186 tourist accommodation businesses in Spain certified under the “Q for Tourist Quality”, own System Quality Management. It was raised with the purpose of analyzing the structure of the relationship between critical quality factors and results-social impact, how they operate and the level of their influence on obtaining these results within the company. Starting from a deep theoretical revision we propose a theoretical model together with the hypotheses to be tested, and we proceed to validation using the technique of Structural Equation Models. The results obtained show that companies wishing to improve their social impact should take into account that leadership is the most important factor to achieve it. Leadership indirectly affects the social impact through its influence on alliances and resources, quality policy/planning, personnel management and learning.

  10. IMPROVING THE QUALITY OF LIFE IN CLIMAX WITH KINETOTHERAPY AND NATURAL FACTORS IN VATRA DORNEI RESORT

    Directory of Open Access Journals (Sweden)

    CRACIUN Maria Daniela

    2015-05-01

    Full Text Available Introduction Menopause is a physiological period of a woman's life accompanied by multiple symptoms that affect quality of life. Functional disorders caused by menopause may benefit from prophylactic treatment in Vatra Dornei resort to rebalance the body. Material and Methods The study was conducted between July10, 2014 – September 15, 2014 on a group of 15 women, who received specific kinetic and resort treatment for 18 days, being individualized based on personal history. Evaluation of patients was done at beginning of the treatment the day 10th of July, and the last day of treatment the day 15th of September, recording pain score on VAS scale, the score for quality of life WHQ, and 10 parameters characteristic of menopause. The treatment with natural factors applied in Vatra Dornei resort consisted of the following procedures: mountain landscaped climbing paths, massage, kinetotherapy, general warm baths with peat mud, plants, carbonated mineral spring waters, electrotherapy, crenotherapy. Results: Age patients monitored ranged between 40 and 63 years with an average 50.67 (± 8.07. At the onset of this treatment pain average value was 3.93 (± 1.48 and at the final the average value of only 1.13 (± 0.74. After applying balneo-physio-kinetic treatment it was observed an improvement of the average of the 10 tested parameters. At the beginning of the treatment WHQ index shows an impairment of quality of life on average 56%, after 10 days 31% and by the end of treatment only 14%. Conclusions: After the application of the treatment with natural balneo-kineto-therapeutical factors of Vatra-Dornei resort, there is a significant improvement in specific climax disorders.

  11. [Quality of life and related factors among climacteric women from south Brazil].

    Science.gov (United States)

    de Lorenzi, Dino R S; Saciloto, Bruno; Artico, Graziela R; Fontana, Sabrina K R

    2009-01-01

    This study aimed to evaluate the quality of life in climacteric and associated factor among women from Southeast Brazil. A cross-section study of 506 women aged between 45 and 60 years old attended at a university climacteric clinic from South Brazil from June to October 2002. Hysterectomized women, as well as hormonal therapy or hormonal contraceptive users were excluded. The quality of life was evaluated by the Women's Health Questionnaire (WHQ). Statistical analysis was performed with multiple linear regression analysis. The average of the age among the studied women was 51.3 (+/- 4.5) years old. About 15.4% were premenopausal, 34.4% perimenopausal and 50.2% postmenopausal women. The quality of life showed up deteriorated among the studied women. The factors related with quality of life were: the educational level (p < 0.01), the confirmation of smoking in the last year (p < 0.01), regular physical activity (p < 0.01), the confirmation of previous co-morbidities (p < 0.01) and the menopausal status (p < 0.01). A higher educational level, as well as the confirmation of regular physical activity led to a significant increase on their life quality. Smoking and previous clinical co-morbidities were responsible for the lower scores of quality of life. The pre-menopause was associated with a higher life quality level if compared to peri and post menopause. No differences in relation to the scores of life were identified among the perimenopausal and postmenopausal women. Nevertheless the menopausal status showed up associated to the quality of life, the results of the study pointed out that the climacteric is not just influenced by biological factors, but also by psychosocial and cultural factors.

  12. Factors affecting the quality of life of homebound elderly hemiparetic stroke patients with cognitive impairment.

    Science.gov (United States)

    Takemasa, Seiichi; Nakagoshi, Ryoma; Uesugi, Masayuki; Inoue, Yuri; Gotou, Makoto; Koeda, Hideki; Naruse, Susumu

    2016-12-01

    [Purpose] This study examined the quality of life of homebound elderly hemiparetic stroke patients with cognitive impairment and the factors affecting their quality of life. [Subjects and Methods] The subjects of the study were 17 home-based elderly hemiparetic stroke patients with cognitive impairment (8 males and 9 females, average age: 76.3 ± 10.5 years old). Their physical and psychological conditions, quality of life and other items were investigated. Nishimura's Mental State Scale for the Elderly was used for the cognitive impairment assessment. The Functional Independence Measure was used to assess activities of daily living, and the Japanese Quality of Life Inventory for the Elderly with Dementia was used to assess quality of life. [Results] The subjects' quality of life was affected by their cognitive impairment level and independence of activities of daily living. However, no correlations were observed between the quality of life of the homebound elderly hemiparetic stroke patients with cognitive impairment, age, gender or care-need level. [Conclusion] In order to improve the quality of life of homebound elderly hemiparetic stroke patients with cognitive impairment, assistance helping them to maintain their cognitive abilities and on-going rehabilitation for improving activities of daily living independence are required.

  13. [Analysis of occupational quality of life and related factors in a primary health care unit].

    Science.gov (United States)

    Garzón González, G; Chacón García, A; Rodrigo Yudego, R; Alemany López, A; Domínguez Peña, C; Martínez Cervell, C

    2010-01-01

    To determine the professionals' valuation on his quality of worklife and the factors related to this one. Observacional transversely study. Questionnaire Setting: Area 1 of primary care. SERMAS Participants: Voluntary and confidential response to the questionnaire requested all the workers. Unit type, labour statement, manager rol, work years old, work burden, rural environment, profession, punctuation average of the questionnaire and punctuation in each of 11 questionnaire factors. Questionnaire Q-Labors 56 was used. Answers ratio 58% (n=883). The average punctuation±standard deviation was 3,0±0,47 (maximum punctuation 5) globally. The worse punctuated factors were salary (2,07±1,03), burden (2,33±0,88) and promotion (2,44±0,92), and the best punctuated factors were interpersonal relations (3,74±0,76) and patients relations (3,72±0,62). The best logistic regression model to explain global punctuation more than 3 included only manager rol, labour statement and profession. The punctuation of quality worklife was 3 in a scale from 1 to 5. The most determinant variable has been the profession. Influence of Work burden, Work years old or Rural environment wasn't found. The worse valuated factors were salary, burden and promotion. Interpersonal relations and patients relations were the best punctuated. Copyright © 2009 SECA. Published by Elsevier Espana. All rights reserved.

  14. Factors affecting the quality of external auditing services

    Directory of Open Access Journals (Sweden)

    Alaraji Fedaa Abd Almajid Sabbar

    2017-07-01

    Full Text Available This study is aim to adopt knowledge the specific concept to external audit quality and which are the factors that affecting on those qualities in the State of Iraq. As well as, to knowledge the range of depend this job in Iraq on international or local criterion to external audit quality or not. Also, to identify the satisfaction of interested parties about job of audit on service of external audit or not. According to viewpoint external audit the workers in this job and interested parties about external audit in Iraq where practice the profession of external audit under the supervision and control of the board of the profession consists of members appointed by the government ministries no are elected. The study reached to a set of many conclusions, most important of all that the realization external audit in Iraq for importance of external audit quality. Although no existence no concept of specific criterion for quality, whether international or local. Therefore, this study recommends a set of recommendations necessary to adopt uniform criterion for the quality of the external audit job in Iraq, whether international or local, to achieve high quality in audit services and achieving satisfaction of interested parties on those services.

  15. Factors affecting quality and safety of fresh-cut produce.

    Science.gov (United States)

    Francis, G A; Gallone, A; Nychas, G J; Sofos, J N; Colelli, G; Amodio, M L; Spano, G

    2012-01-01

    The quality of fresh-cut fruit and vegetable products includes a combination of attributes, such as appearance, texture, and flavor, as well as nutritional and safety aspects that determine their value to the consumer. Nutritionally, fruit and vegetables represent a good source of vitamins, minerals, and dietary fiber, and fresh-cut produce satisfies consumer demand for freshly prepared, convenient, healthy food. However, fresh-cut produce deteriorates faster than corresponding intact produce, as a result of damage caused by minimal processing, which accelerates many physiological changes that lead to a reduction in produce quality and shelf-life. The symptoms of produce deterioration include discoloration, increased oxidative browning at cut surfaces, flaccidity as a result of loss of water, and decreased nutritional value. Damaged plant tissues also represent a better substrate for growth of microorganisms, including spoilage microorganisms and foodborne pathogens. The risk of pathogen contamination and growth is one of the main safety concerns associated with fresh-cut produce, as highlighted by the increasing number of produce-linked foodborne outbreaks in recent years. The pathogens of major concern in fresh-cut produce are Listeria monocytogenes, pathogenic Escherichia coli mainly O157:H7, and Salmonella spp. This article describes the quality of fresh-cut produce, factors affecting quality, and various techniques for evaluating quality. In addition, the microbiological safety of fresh-cut produce and factors affecting pathogen survival and growth on fresh-cut produce are discussed in detail.

  16. Quality of life and its influencing factors in patients with

    Directory of Open Access Journals (Sweden)

    LIU Song-yan

    2011-04-01

    Full Text Available 【Abstract】Objective: To observe the quality of life in patients with post-traumatic epilepsy and discuss the influencing factors. Methods: We assessed 105 patients with post-traumatic epilepsy and 100 healthy people as control using Quality of Life Scale-31 (QOL-31, Self-rating Depressing Scale (SDS and Self-rating Anxiety Scale (SAS, and conducted retrospective analysis on the depression, anxiety, site of trauma, control of seizure, EEG and therapeutic compliance. Results: Patients with post-traumatic epilepsy scored much lower than the control group on QOL-31 (P<0.01, but higher than the control group on SDS and SAS (P<0.01. Multiple regression analysis indicated that major influencing factors on the quality of life were anxiety, therapeutic compliance, depression, poor control of epileptic seizure and site of trauma. Conclusions: The quality of life in patients with posttraumatic epilepsy has significantly declined. Doctors should pay attention to psychological and mental problems of patients with epilepsy, such as depression and anxiety, enhancing therapeutic compliance and controlling epileptic seizure, which are the keys to improving prognosis. Key words: Epilepsy, post-traumatic; Quality of life; Anxiety

  17. The study of surgical image quality evaluation system by subjective quality factor method

    Science.gov (United States)

    Zhang, Jian J.; Xuan, Jason R.; Yang, Xirong; Yu, Honggang; Koullick, Edouard

    2016-03-01

    GreenLightTM procedure is an effective and economical way of treatment of benign prostate hyperplasia (BPH); there are almost a million of patients treated with GreenLightTM worldwide. During the surgical procedure, the surgeon or physician will rely on the monitoring video system to survey and confirm the surgical progress. There are a few obstructions that could greatly affect the image quality of the monitoring video, like laser glare by the tissue and body fluid, air bubbles and debris generated by tissue evaporation, and bleeding, just to name a few. In order to improve the physician's visual experience of a laser surgical procedure, the system performance parameter related to image quality needs to be well defined. However, since image quality is the integrated set of perceptions of the overall degree of excellence of an image, or in other words, image quality is the perceptually weighted combination of significant attributes (contrast, graininess …) of an image when considered in its marketplace or application, there is no standard definition on overall image or video quality especially for the no-reference case (without a standard chart as reference). In this study, Subjective Quality Factor (SQF) and acutance are used for no-reference image quality evaluation. Basic image quality parameters, like sharpness, color accuracy, size of obstruction and transmission of obstruction, are used as subparameter to define the rating scale for image quality evaluation or comparison. Sample image groups were evaluated by human observers according to the rating scale. Surveys of physician groups were also conducted with lab generated sample videos. The study shows that human subjective perception is a trustworthy way of image quality evaluation. More systematic investigation on the relationship between video quality and image quality of each frame will be conducted as a future study.

  18. Influence factors of visual quality after phacoemulsification for cataract

    Directory of Open Access Journals (Sweden)

    Zhen-Lin Lin

    2017-12-01

    Full Text Available Cataract refers to the degenerative changes in lens quality caused by various causes of reduced transparency or color change. Surgical treatment is the main treatment modality at present. Among them, phacoemulsification has become the main surgical treatment for cataract because of its advantages such as short operation time, small incision and quicker healing. Today, cataract surgery has gradually shift to refractive surgery, and is no longer simply as cataract surgery. But after cataract phacoemulsification, the symptoms and visual quality are different. The main causes include refractive error, postoperative dry eyes and postoperative corneal astigmatism. This article reviews the factors that influence the visual quality of cataract phacoemulsification and its future trends.

  19. Impact of Constant Rate Factor on Objective Video Quality Assessment

    Directory of Open Access Journals (Sweden)

    Juraj Bienik

    2017-01-01

    Full Text Available This paper deals with the impact of constant rate factor value on the objective video quality assessment using PSNR and SSIM metrics. Compression efficiency of H.264 and H.265 codecs defined by different Constant rate factor (CRF values was tested. The assessment was done for eight types of video sequences depending on content for High Definition (HD, Full HD (FHD and Ultra HD (UHD resolution. Finally, performance of both mentioned codecs with emphasis on compression ratio and efficiency of coding was compared.

  20. Data quality and factor analysis of the Danish version of the Relationship Scale Questionnaire.

    Science.gov (United States)

    Andersen, Christina Maar; Pedersen, Anette Fischer; Carlsen, Anders Helles; Olesen, Frede; Vedsted, Peter

    2017-01-01

    The Relationship Scale Questionnaire (RSQ) is a widely-used measure of adult attachment, but whether the results obtained by the RSQ fit the attachment construct has only been examined to a limited extent. The objectives of this study were to investigate the psychometric properties of the Danish translation of the RSQ and to test whether the results are consistent with the hypothesized model of attachment. The study included two samples: 602 general practitioners and 611 cancer patients. The two samples were analyzed separately. Data quality was assessed by mean, median and missing values for each item, floor and ceiling effects, average inter-item correlations and Cronbach's α for each subscale. Test-retest was assessed by intra-class correlations among 76 general practitioners. A confirmatory factor analysis was conducted to establish evidence of the four proposed subscales. Due to an inadequate fit of the model, data was randomly split into two equally sized subsamples and an exploratory factor analysis was conducted for all 30 items in the first subsample comprised of 286 cancer patients and 285 general practitioners. The EFA yielded a three-factor structure which was validated through a confirmatory factor analyses in a second subsample comprised of 278 cancer patients and 289 general practitioners. The data quality of the RSQ was generally good, except low internal consistency and low to moderate test-retest reliability. The four subscales of the RSQ were not confirmed by the confirmatory factor analysis. An exploratory factor analysis suggested a three-factor solution for both general practitioners and patients, which accounted for 61.1% of the variance among general practitioners and 62.5% among patients. The new three-factor solution was verified in a confirmatory factor analyses. The proposed four-factor model of the RSQ could not be confirmed in this study. Similar challenges have been found by other studies validating the RSQ. An alternative three-factor

  1. Quality management in the nuclear industry: the human factor

    Energy Technology Data Exchange (ETDEWEB)

    1990-01-01

    In the nuclear industry it is vital to understand the 'human factor' with regard to plant performance and plant safety. A proper management system ensures that personnel perform their duties correctly. 'Quality Management in the Nuclear Industry: the Human Factor', was a conference organized by the Institution of Mechanical Engineers in October 1990. The conference covered a wide range of topics on an international level including: standards, licensing and regulatory procedures; selection assessment and training of personnel; feedback from experience of good practice and of deviations; management and support of personnel performance; modelling and evaluation of human factors. The papers presented at the conference are contained in this volume. All twenty papers are indexed separately. (author).

  2. The geographical factor in the determination of audit quality

    Directory of Open Access Journals (Sweden)

    Antonio Luis Duréndez Gómez-Guillamón

    2012-12-01

    Full Text Available The aim of this research paper is to analyze the role of the spatial factor in the determination of audit quality. Concretely, we hypothesize that audit quality is influenced by location and by the existence of spill-over effects generated by two factors: (1 the specialization and reputation of auditing firms and (2 the economic and institutional development of the audit firm’s location. We developed an empirical research to test the existence of such spatial effects (location and spill-over on a representative sample of the Spanish audit market. The study includes spatial econometric techniques taking into account the auditee specific characteristics, as well as other external factors. The findings highlight the relevance of including the spatial dimension when the audit quality is being studied. The results confirm the existence of a location effect according to the highest quality values are found in the most developed Spanish areas. Furthermore, we find a spatial spill-over effect among regions, affecting audit quality values. This effect confirms that audit quality within a location spreads to its surroundings. The results support the promotion of governmental policies leading to improve audit quality considering the spill-over effect.KEYWORDS: RESUMENEl objetivo de este artículo es analizar la influencia del factor geográfico en la determinación de la calidad de la auditoría. En concreto, la hipótesis que se plantea sostiene que la calidad de la auditoría se ve afectada por la ubicación y por la existencia de efectos indirectos generados por dos factores: (1 la especialización y la reputación de las firmas de auditoría y (2 el desarrollo económico e institucional de la provincia donde se localiza la firma de auditoría. Con este objetivo hemos desarrollado un estudio empírico para probar la existencia de tales efectos espaciales (ubicación y desbordamiento en una muestra representativa del mercado de auditoría español. El

  3. Factors influencing groundwater quality: towards an integrated management approach.

    Science.gov (United States)

    De Giglio, O; Quaranta, A; Barbuti, G; Napoli, C; Caggiano, G; Montagna, M T

    2015-01-01

    The safety of groundwater resources is a serious issue, particularly when these resources are the main source of water for drinking, irrigation and industrial use in coastal areas. In Italy, 85% of the water used by the public is of underground origin. The aim of this report is to analyze the main factors that make groundwater vulnerable. Soil characteristics and filtration capacity can promote or hinder the diffusion of environmental contaminants. Global climate change influences the prevalence and degree of groundwater contamination. Anthropic pressure causes considerable exploitation of water resources, leading to reduced water availability and the progressive deterioration of water quality. Management of water quality will require a multidisciplinary, dynamic and practical approach focused on identifying the measures necessary to reduce contamination and mitigate the risks associated with the use of contaminated water resources.

  4. Survey-assessed quality and organizational factors related to quality in Pursuing Perfection hospitals.

    Science.gov (United States)

    Shwartz, Michael; Cramer, Irene E; Holmes, Sally K; Cohen, Alan B; Restuccia, Joseph D; VanDeusen Lukas, Carol; Sullivan, Jennifer L; Charns, Martin P

    2010-01-01

    The goal of the Pursuing Perfection (P2) program was to encourage organizations to push quality improvement to new levels of excellence. As part of an evaluation of P2, we surveyed employees at the 7 participating P2 organizations to (1) assess their perceptions of patient care quality and improvement progress and (2) examine perceived performance on organizational and workgroup characteristics associated with quality. Many survey questions were drawn from existing conceptual models and survey instruments. We used factor analysis to create new scales from questions that were not part of established scales. We used correlation coefficients and multivariable models to examine relationships among variables. Variables most strongly associated with perceived quality included standardized and simplified care processes resulting in coordinated care and smooth handoffs, a clear sense of organizational direction and clear action plans, and communication with staff about reasons for change and improvement progress made. Of those variables with a strong relationship to quality, ones with relatively low mean ratings included workgroup coordination; sufficient resources and support for improvement; training; and efficient use of people, time, and energy. These are important areas on which management should focus to improve employee ratings of quality.

  5. Factors Associated with the Quality of Transient Elastography.

    Science.gov (United States)

    Juárez-Hernández, Eva; Uribe-Ramos, Martha Helena; Ramos-Ostos, Martha Helena; López-Ramírez, Angélica Yanine; Ornelas-Arroyo, Sofía; Romero-Flores, Juan Luis; Méndez-Sánchez, Nahúm; Uribe, Misael; Chávez-Tapia, Norberto C

    2015-07-01

    Transient elastography is a noninvasive method for the evaluation of fibrosis in chronic liver disease. However, its reliability is variable, and the factors associated with its accuracy have not been identified completely. To identify the factors associated with the reliability of transient elastography. A total of 2033 transient elastography measurements were taken from March 2009 to October 2013. Reliability was determined according to the interquartile range/median (IQR/M reliable; IQR/M reliable). Other indicators such as the percentage of successful measurements (>60 %), time of performance, and probe size were recorded. Potential factors that could affect the reliability of the procedure were analyzed using multivariate logistic regression. Slightly less than 5 % of the measurements were unsuccessful, and 83 % of the successful measurements were found to be reliable. Factors associated with an unsuccessful measurement were female gender, incorrect probe size, and the presence of HCV infection. Unreliable measurements were associated with use of the procedure as part of a clinical study and success rate. Very reliable evaluations were associated with >10 measurements, the presence of chronic hepatic disease, and a success rate of >60 %. The operator and clinical and anthropometric characteristics are factors that influence the success and reliability of transient elastography. Improvements in the quality of the procedure are needed to provide better diagnostic accuracy in clinical practice.

  6. Health related quality of life and influencing factors among welders.

    Directory of Open Access Journals (Sweden)

    Jingxiang Qin

    Full Text Available 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.

  7. Normal modes and quality factors of spherical dielectric resonators: I ...

    Indian Academy of Sciences (India)

    Normal modes and quality factors of spherical dielectric resonators. Hθ = A. jωµ0r d dr {√. rJn+(1/2)(kr)} d dθ {P m n (cos θ)} cos mφ,. (12b). Hφ = −. mA. jωµ0r sin θ d dr {√. rJn+(1/2)(kr)} Pm n (cos θ) sin mφ. (12c). Similarly, for the TM modes the field components are given by. Er = n(n + 1)A jωε0εrr3/2. Jn+(1/2)(kr)Pm n (cos ...

  8. A simple quality factor for characterization of thin silicon films

    Czech Academy of Sciences Publication Activity Database

    Kočka, Jan; Mates, Tomáš; Ledinský, Martin; Stuchlíková, The-Ha; Stuchlík, Jiří; Fejfar, Antonín

    2008-01-01

    Roč. 354, 19-25 (2008), s. 2227-2230 ISSN 0022-3093 R&D Projects: GA MŠk(CZ) LC06040; GA ČR(CZ) GD202/05/H003; GA MŠk LC510; GA AV ČR IAA1010413; GA AV ČR IAA1010316; GA MŽP(CZ) SN/3/172/05 Institutional research plan: CEZ:AV0Z10100521 Keywords : microcrystalline silicon * deposition process * high growth rate * quality evaluation Subject RIV: BM - Solid Matter Physics ; Magnetism Impact factor: 1.449, year: 2008

  9. Generalized beam quality factor of aberrated truncated Gaussian laser beams

    CSIR Research Space (South Africa)

    Mafusire, C

    2011-07-01

    Full Text Available very much like a normal lens (without the rotational symmetry associated with defocus) since the beam quality factor is calculated in the principal axes. With y-astigmatism, the lenslike behavior does not take place in the principal axes where...,13]. In this work we have adopted the sensible approach of choosing the principal axes Fig. 1. (Color online) Added far-field divergence due to the aperture size as a result of truncation. 1374 J. Opt. Soc. Am. A / Vol. 28, No. 7 / July 2011 C. Mafusire and A...

  10. Difference of performance in response to disease admissions between daily time air quality indices and those derived from average and entropy functions.

    Science.gov (United States)

    Lai, Li-Wei; Cheng, Wan-Li

    2017-06-01

    Daily time air quality indices, which can reflect air quality in 1 day, are suitable for identifying daily exposure during conditions of poor air quality. The aim of this study is to compare the main effectiveness of four daily time indices in representing variation in the number of disease admissions. These indices include pollution standard index (PSI), air quality index (AQI) and their respective indices derived from mean and entropy functions: MEPSI and MEAQI. The hourly concentrations of fine particulate matter less than 10 μm in diameter (PM 10 ), PM 2.5 , O 3 , CO, NO 2 and SO 2 from 1 January 2006 to 31 December 2010 were obtained from 14 air quality monitoring stations owned by the Environmental Protection Administration (EPA) in the Kaoping region, Taiwan.Instead of circulatory system disease admissions, the indices were correlative with the number of respiratory disease admissions with correlative coefficients of 0.49 to 0.56 (P entropy functions improved their performance of reactive range and air pollution identification. The reactive range of MEPSI and MEAQI was 1.4-3 times that of the original indices. The MEPSI and MEAQI increased identification from 40 to 180 in index scale and revealed one to two additional categories of public health effect information. In comparison with other indices, MEAQI is more effective for application to pollution events with multiple air pollutants.

  11. Averaging in cosmological models

    OpenAIRE

    Coley, Alan

    2010-01-01

    The averaging problem in cosmology is of considerable importance for the correct interpretation of cosmological data. We review cosmological observations and discuss some of the issues regarding averaging. We present a precise definition of a cosmological model and a rigorous mathematical definition of averaging, based entirely in terms of scalar invariants.

  12. Quality correction factors of composite IMRT beam deliveries: Theoretical considerations

    International Nuclear Information System (INIS)

    Bouchard, Hugo

    2012-01-01

    Purpose: In the scope of intensity modulated radiation therapy (IMRT) dosimetry using ionization chambers, quality correction factors of plan-class-specific reference (PCSR) fields are theoretically investigated. The symmetry of the problem is studied to provide recommendable criteria for composite beam deliveries where correction factors are minimal and also to establish a theoretical limit for PCSR delivery k Q factors. Methods: The concept of virtual symmetric collapsed (VSC) beam, being associated to a given modulated composite delivery, is defined in the scope of this investigation. Under symmetrical measurement conditions, any composite delivery has the property of having a k Q factor identical to its associated VSC beam. Using this concept of VSC, a fundamental property of IMRT k Q factors is demonstrated in the form of a theorem. The sensitivity to the conditions required by the theorem is thoroughly examined. Results: The theorem states that if a composite modulated beam delivery produces a uniform dose distribution in a volume V cyl which is symmetric with the cylindrical delivery and all beams fulfills two conditions in V cyl : (1) the dose modulation function is unchanged along the beam axis, and (2) the dose gradient in the beam direction is constant for a given lateral position; then its associated VSC beam produces no lateral dose gradient in V cyl , no matter what beam modulation or gantry angles are being used. The examination of the conditions required by the theorem lead to the following results. The effect of the depth-dose gradient not being perfectly constant with depth on the VSC beam lateral dose gradient is found negligible. The effect of the dose modulation function being degraded with depth on the VSC beam lateral dose gradient is found to be only related to scatter and beam hardening, as the theorem holds also for diverging beams. Conclusions: The use of the symmetry of the problem in the present paper leads to a valuable theorem showing

  13. Mie Plasmons: Modes Volumes, Quality Factors, and Coupling Strengths (Purcell Factor to a Dipolar Emitter

    Directory of Open Access Journals (Sweden)

    G. Colas des Francs

    2012-01-01

    Full Text Available Using either quasistatic approximation or exact Mie expansion, we characterize the localized surface plasmons supported by a metallic spherical nanoparticle. We estimate the quality factor Qn and define the effective volume Vn of the nth mode in such a way that coupling strength with a neighbouring dipolar emitter is proportional to the ratio Qn/Vn (Purcell factor. The role of Joule losses, far-field scattering, and mode confinement in the coupling mechanism is introduced and discussed with simple physical understanding, with particular attention paid to energy conservation.

  14. Expected quality factor of a simple tuned oscillator.

    Science.gov (United States)

    Tan, Kia Hock

    2011-05-01

    A positive feedback system oscillating under self-sustained mode is shown to have an extremely high gain. Modeled as one port, the expected Q is much higher than the loaded Q-factor of the resonator. With just thermal noise present, random phase/frequency deviation is linear. Centered about the oscillator frequency omega/(0), noise frequency on both sides is more amplified with decreasing separation distance. Ultimately, frequency pulling may result in synchronous locking with hysteresis, which occurs because a real oscillator displays a truncated limiting curve. Once locked onto a signal, smaller levels are ignored. A new approach to the design and characterization of a simple tuned oscillator is offered: According to the phenomenon of injection locking, there exists an expected quality factor relating the shape of the truncated limiting curve to an ideal curve. In this paper, synthesis and innovative analytical methods of academic interest are revealed: 1) application of the transducer loss method is revised to establish a new method for oscillator characterization; 2) a transparent method of normalizing a two-port network in the presence of white noise is developed; and 3) in quartz crystal controlled oscillators, characterization of the noise originating from an equivalent noise-resistance determined from parameter of the quartz crystal is proposed. It is shown that the two-port model can also be approximated on a one-port basis. In conclusion, a sample of closed-form estimation of expected Q-factor order of magnitude of piezoelectric resonator oscillators is calculated.

  15. Comparison of Different Numerical Methods for Quality Factor Calculation of Nano and Micro Photonic Cavities

    DEFF Research Database (Denmark)

    Taghizadeh, Alireza; Mørk, Jesper; Chung, Il-Sug

    2014-01-01

    Four different numerical methods for calculating the quality factor and resonance wavelength of a nano or micro photonic cavity are compared. Good agreement was found for a wide range of quality factors. Advantages and limitations of the different methods are discussed.......Four different numerical methods for calculating the quality factor and resonance wavelength of a nano or micro photonic cavity are compared. Good agreement was found for a wide range of quality factors. Advantages and limitations of the different methods are discussed....

  16. Examining the Factor Structure and Hierarchical Nature of the Quality of Life Construct

    Science.gov (United States)

    Wang, Mian; Schalock, Robert L.; Verdugo, Miguel A.; Jenaro, Christina

    2010-01-01

    There is considerable debate in the area of individual quality of life research regarding the factor structure and hierarchical nature of the quality of life construct. Our purpose in this study was to test via structural equation modeling an a priori quality of life model consisting of eight first-order factors and one second-order factor. Data…

  17. [Quality-of-life-related factors in adolescents].

    Science.gov (United States)

    Lima-Serrano, Marta; Martínez-Montilla, José Manuel; Guerra-Martín, María Dolores; Vargas-Martínez, Ana Magdalena; Lima-Rodríguez, Joaquín S

    To determine quality of life (QoL) and its relationship to lifestyles in adolescents in high schools. Cross-sectional, observational study with 256 students aged 12 to 17 in Seville (Spain). Multiple linear regression models were tested (p <0.05). The boys had higher scores in most of the QoL areas. The female gender was inversely related to physical, psychological, familial QoL areas and the general QoL index. Family functionality and performing physical activity were the factors most associated with better QoL in all areas. All multivariate models were statistically significant and explained from 11% of social QoL variability to 35% of the general QoL index. The findings could be useful for developing interventions to promote health in schools, with the objective of promoting healthy lifestyles and QoL. Copyright © 2016 SESPAS. Publicado por Elsevier España, S.L.U. All rights reserved.

  18. THE INSPECTION LIKE QUALITY FACTOR IN THE EDUCATIONAL SYSTEM

    Directory of Open Access Journals (Sweden)

    Joaquín Oliver Pozo

    2016-07-01

    Full Text Available The Inspection, along with other educational sectors, shapes from complementarity, coordination and communication between them, the architecture of the educational system. Each has its specificity and its own space in Education. The aim of this study is simply identify and define the location of the inspection into the education system, between educational administration and schools, and the "why" (their mission, and consistent with it, "which makes" (its functions and assignations. Mission and functions that take place in schools, at the sight of the Educational Administration and the society, through the Inspectorate as organization. Of the principles underlying this organization and of the communication, training, and technical and professional exchange that drives through their organizational structures, will depend its leadership in Education and to be seen as a quality factor.

  19. Analysis of factors affecting the LOCA test quality

    International Nuclear Information System (INIS)

    Wang Lu

    2008-01-01

    Localization of nuclear safety-related equipment has become an important way of nuclear power development in China. To meet this demand, the competence should be promoted in the following two areas, one is to develop the capability of R and D and manufacturing of nuclear safety-related equipment, the other is to implement equipment qualification according to relevant codes and standards. As LOCA test is one of the most important parts in the qualification test of nuclear safety-related equipment, the main factors related with the quality of the LOCA test are analyzed in this paper, and this may be a reference to improve the skills in designing, constructing and operating LOCA test devices. (authors)

  20. Factors affecting quality of social interaction park in Jakarta

    Science.gov (United States)

    Mangunsong, N. I.

    2018-01-01

    The existence of social interactions park in Jakarta is an oasis in the middle of a concrete jungle. Parks is a response to the need for open space as a place of recreation and community interaction. Often the social interaction parks built by the government does not function as expected, but other functions such as a place to sell, trash, unsafe so be rarely visited by visitors. The purpose of this study was to analyze the factors that affect the quality of social interaction parks in Jakarta by conducting descriptive analysis and correlation analysis of the variables assessment. The results of the analysis can give an idea of social interactions park based on community needs and propose the development of social interactioncity park. The object of study are 25 social interaction parks in 5 municipalities of Jakarta. The method used is descriptive analysis method, correlation analysis using SPSS 19 and using crosstab, chi-square tests. The variables are 5 aspects of Design, Plants composition: Selection type of plant (D); the beauty and harmony (Ind); Maintenance and fertility (P); Cleanliness and Environmental Health (BS); Specificity (Drainage, Multi Function garden, Means, Concern/Mutual cooperation, in dense settlements) (K). The results of analysis show that beauty is the most significant correlation with the value of the park followed by specificity, cleanliness and maintenance. Design was not the most significant variable affecting the quality of the park. The results of this study can be used by the Department of Parks and Cemeteries as input in managing park existing or to be developed and to improve the quality of social interaction park in Jakarta.

  1. Patient factors associated with quality of life in atrial fibrillation.

    Science.gov (United States)

    Randolph, Tiffany C; Simon, DaJuanicia N; Thomas, Laine; Allen, Larry A; Fonarow, Gregg C; Gersh, Bernard J; Kowey, Peter R; Reiffel, James A; Naccarelli, Gerald V; Chan, Paul S; Spertus, John A; Peterson, Eric D; Piccini, Jonathan P

    2016-12-01

    As treatment options for atrial fibrillation (AF) increase, more attention is focused on patients' experiences and quality of life (QoL). However, little is known about the factors associated with these outcomes. The Atrial Fibrillation Effect on QualiTy-of-life (AFEQT) is a disease-specific QoL tool for AF, with domain and summary scores ranging from 0 (the worst QoL) to 100. Using multivariable linear regression, we evaluated factors associated with baseline AFEQT Summary and Subscale Scores in ORBIT AF, a large, community-based AF registry. Independent associations were reported as coefficient estimates in scores and 95% confidence intervals (CI). Overall, AFEQT was assessed in 2007 AF outpatients from 99 sites. Median age (IQR) was 76 years (67-82) and 43% were female. The median AFEQT summary score was 82 (67-94). Female sex, younger age, new onset AF, higher heart rate, obstructive sleep apnea, symptomatic heart failure (HF), chronic obstructive pulmonary disease and coronary artery disease were all independently associated with reduced QoL. Female sex [Estimate -7.03, 95% CI (-9.31, -4.75)] and new onset versus permanent AF [Estimate -7.44, 95% CI (-11.03, -3.84)] were independently associated with increased symptoms. NYHA Class III or IV HF [Estimate -14.44, 95% CI (-19.46, -8.76)] and female sex [Estimate -7.91, 95% CI (-9.95, -5.88)] were most independently associated with impaired daily activities. QoL in patients with AF varies widely and is associated with several patient factors. Understanding patient factors independently associated with worse QoL can be a foundation for tailoring treatment. Copyright © 2016 Elsevier Inc. All rights reserved.

  2. Enhancing selectivity of infrared emitters through quality-factor matching

    Science.gov (United States)

    Sakr, Enas; Zhou, Zhiguang; Bermel, Peter

    2015-09-01

    It has recently been proposed that designing selective emitters with photonic crystals (PhCs) or plasmonic metamaterials can suppress low-energy photon emission, while enhancing higher-energy photon emission. Here, we will consider multiple approaches to designing and fabricating nanophotonic structures concentrating infrared thermal radiation at energies above a critical threshold. These are based on quality factor matching, in which one creates resonant cavities that couple light out at the same rate that the underlying materials emit it. When this quality-factor matching is done properly, emissivities can approach those of a blackbody, but only within a selected range of thermal photon energies. One potential application is for improving the conversion of heat to electricity via a thermophotovoltaic (TPV) system, by using thermal radiation to illuminate a photovoltaic (PV) diode. In this study, realistic simulations of system efficiencies are performed using finite-difference time domain (FDTD) and rigorous coupled wave analysis (RCWA) to capture both thermal radiation and PV diode absorption. We first consider a previously studied 2D molybdenum photonic crystal with a commercially-available silicon PV diode, which can yield TPV efficiencies up to 26.2%. Second, a 1D-periodic samarium-doped glass emitter with a gallium antimonide (GaSb) PV diode is presented, which can yield efficiencies up to 38.5%. Finally, a 2D tungsten photonic crystal with a 1D integrated, chirped filter and the GaSb PV diode can yield efficiencies up to 38.2%; however, the fabrication procedure is expected to be more challenging. The advantages and disadvantages of each strategy will be discussed.

  3. Effects of various factors on sleep disorders and quality of life in Parkinson's disease.

    Science.gov (United States)

    Telarovic, Srdjana; Mijatovic, Dragana; Telarovic, Irma

    2015-12-01

    In Parkinson's disease (PD), sleep disorders (SD) occur as a result of the neurochemical changes in sleep centres, neurodegenerative changes in dopaminergic neurons, and other factors. The most common SD include excessive daytime sleepiness, insomnia, restless legs syndrome and nocturia. The aim of the study was to compare quality of sleep, as a factor that greatly impacts quality of life (QoL), between PD patients and a control group and to further examine SD in the PD group with focus on incidence and SD types as well as on effects various factors (age, sex, PD characteristics, medication usage) have on these disorders. The study included 110 patients who met the criteria for the diagnosis of PD and 110 age-matched healthy controls. We used the Pittsburgh Sleep Quality Index, PD Sleep Scale, Epworth Sleepiness Scale, PD QoL Questionnaire-8 and PD Questionnaire-39 (items 30 and 33). In the group with PD, we considered the duration of the disease, the stage of disease according to the Hoehn and Yahr scale, medications and their impact on the SD. The average duration of the disease was 6 years and the mean stage was 2.44. The result showed significant differences in the sleep quality between groups. In the PD group, SD differences were also found according to gender, duration of the disease and medication usage. The most common SD were fragmented sleep, insomnia and nocturia. To improve the QoL of PD patients, it is necessary to pay more attention to detecting and solving SD.

  4. Associated Factors of Sleep Quality and Behavior among Students of Two Tertiary Institutions in Northern Malaysia.

    Science.gov (United States)

    Lai, P P; Say, Y H

    2013-06-01

    The objective of the study was to investigate the associated factors of sleep quality and behavior among Malaysian tertiary students. The response rate to the questionnaire study was 41.0%. 1,118 students (M = 486, F = 632; mean age = 20.06 ± 1.53 years) were recruited from Universiti and Kolej Tunku Abdul Rahman (Perak campuses) who completed a sleep quality and behavior questionnaire based on Pittsburgh Sleep Quality Index (PSQI), Epworth Sleepiness Scale (ESS), Horne-Ostberg Morningness-Eveningness Scale (MES) and craving of high-calorie foods. Results showed that students had the following sleeping habits - bed time = 2.41 a.m. ± 3.35 hr, rise time = 9.00 a.m. ± 1.76 hr, sleep latency = 16.65 ± 14.30 min and sleep duration = 7.31 ± 1.45 hr. 32.9% of the students were defined as poor quality sleepers, 30.6% suffering excessive daytime sleepiness (EDS) and 81.6% were categorized as individuals with 'definitely eveningness', defined as people who are definitely most alert in the late evening hours and prefer to go to bed late. There were no significant gender differences in sleep quality, 'chronotype' and EDS. Although there was no association of sleep quality and EDS with cumulative Grade Point Average (cGPA) and class skipping, EDS was associated with the tendency to fall asleep in class. Body Mass Index (BMI) was not associated with total sleep, PSQI, ESS and MES scores. Meanwhile, high-calorie food craving was associated with sleep duration, PSQI and ESS, but not MES. In conclusion, poor sleep behavior among Malaysian tertiary students in this study was not associated with gender, academic performance and BMI, but was associated with craving of high-calorie foods instead.

  5. On Averaging Rotations

    DEFF Research Database (Denmark)

    Gramkow, Claus

    1999-01-01

    In this article two common approaches to averaging rotations are compared to a more advanced approach based on a Riemannian metric. Very offten the barycenter of the quaternions or matrices that represent the rotations are used as an estimate of the mean. These methods neglect that rotations belong...... approximations to the Riemannian metric, and that the subsequent corrections are inherient in the least squares estimation. Keywords: averaging rotations, Riemannian metric, matrix, quaternion...

  6. The Quality of Discharge Care Planning in Acute Stroke Care: Influencing Factors and Association with Postdischarge Outcomes.

    Science.gov (United States)

    Andrew, Nadine E; Busingye, Doreen; Lannin, Natasha A; Kilkenny, Monique F; Cadilhac, Dominique A

    2018-03-01

    Comprehensive discharge planning is important for successful transitions from hospital to home after stroke. The aim of this study was to describe the quality of discharge planning received by patients discharged home from acute care, identify factors associated with a positive discharge experience, and assess the influence of discharge quality on outcomes. Patients discharged to the community and registered in the Australian Stroke Clinical Registry in 2014 were invited to participate. Patient-perceived discharge quality was evaluated using the Prescriptions, Ready to re-enter community, Education, Placement, Assurance of safety, Realistic expectations, Empowerment, Directed to appropriate services questionnaire (recall at 3-9 months). Factors associated with higher discharge quality scores were identified and associations between quality scores of more than 80% and outcomes were investigated using multivariable, multilevel regression analyses. There were 200 of 434 eligible registrants who responded; responders and nonresponders were similar with respect to age, sex, and type of stroke. The average overall quality score was 73% (standard deviation: 21). However, only 18% received all aspects of discharge care planning. Quality scores of more than 80% were independently associated with receiving hospital specific information (odds ratio: 5.7, 95% confidence interval [CI]: 2.7, 12.4), and referral to a local support group (odds ratio: 2.5, 95% CI: 1.1, 5.9). Discharge quality scores of more than 80% were associated with higher European Quality of Life-5 Dimensions EQ-5D scores (coefficient: .1, 95% CI: .04, .2) and a reduction in the rate of unmet needs reported at 3-9 months postdischarge (incidence rate ratio: .5, 95% CI: .3, .7). We provide new information on the quality of discharge planning from acute care after stroke. Aspects of discharge planning that correlate with quality of care may reduce unmet needs and improve quality of life outcomes. Copyright

  7. Influencing Factors for Sleep Quality Among Shift-working Nurses: A Cross-Sectional Study in China Using 3-factor Pittsburgh Sleep Quality Index.

    Science.gov (United States)

    Zhang, Li; Sun, Dong-Mei; Li, Chang-Bing; Tao, Min-Fang

    2016-12-01

    The aim of this study was to identify influencing factors for sleep quality among shift-working nurses based on a three-factor scoring model that included sleep efficacy, sleep quality and daily dysfunction. A cross-sectional survey of 513 nurses in a hospital in Shanghai, China, was conducted using a self-reported questionnaire. Sleep quality was measured by the Pittsburgh Sleep Quality Index (PSQI). Data were analyzed based on the three-factor PSQI model: Factor 1, sleep efficacy; Factor 2, sleep quality; Factor 3, daily disturbances. After adjusting for age, marital status, and having children, multivariate logistic regression analysis showed that participants who had previous shift work experience which was at least 6 months ago, or were currently performing shift work were significantly more likely to have poor sleep quality (PSQI > 5) than those who had never done shift work (adjusted odds ratios of 3.943 and 3.975, respectively, both p sleep quality. An appropriate arrangement and intervention strategies are needed in Chinese hospitals in order to improve sleep quality among shift-working nurses. Copyright © 2016. Published by Elsevier B.V.

  8. Quality Factor for the Hadronic Calorimeter in High Luminosity Conditions

    CERN Document Server

    Seixas, Jose; The ATLAS collaboration; Manhaes de Andrade Filho, Luciano; Sotto-Maior-Peralva, Bernardo

    2015-01-01

    The Tile Calorimeter (TileCal) is the central section of the hadronic calorimeter of ATLAS experiment and has about 10,000 eletronic channels. An Optimal Filter (OF) has been used to estimate the energy sampled by the calorimeter and applies a Quality Factor (QF) for signal acceptance. An approach using Matched Filter (MF) has also been pursued. In order to cope with the luminosity rising foreseen for LHC operation upgrade, different algorithms have been developed. Currently, the OF measure for signal acceptance is implemented through a chi-square test. At a low luminosity scenario, such QF measure has been used as a way to describe how the acquired signal is compatible to the pulse shape pattern. However, at high-luminosity conditions, due to pile up, this QF acceptance is no longer possible when OF is employed, and the QF becomes a measure to indicate whether the reconstructed signal suffers or not from pile up. Methods are being developed in order to recover the superposed information, and the QF may be us...

  9. Quality of life and associated factors in elderly people at a Reference Center.

    Science.gov (United States)

    Miranda, Lívia Carvalho Viana; Soares, Sônia Maria; Silva, Patrícia Aparecida Barbosa

    2016-11-01

    Studies have evaluated the quality of life (QOL) of many groups; however, such studies in relation to Reference Centers for the Elderly are scarce. This research identified factors associated with a good QOL of people using a Reference Center in the city of Belo Horizonte, MG, Brazil. Transversal study of 257 elderly people who used a Reference Center for the Elderly. The short version of the World Health Organization Quality of Life Assessment (WHOQOL-BREF) was used to evaluate the QOL of the elderly people. The analysis was rationalized by defining two groups in relation to perceptions of QOL and satisfaction regarding health. Logistic regression analysis was performed to assess the direction and magnitude of the association of each variable with QOL. The results showed that the majority (63.4%) of the elderly people considered that they had a good QOL and that they were satisfied with their health. The environmental domain received the lowest scores (average = 14.4). The factors of advanced age, being from the interior of the state of Minas Gerais, physical activity, diabetes, musculoskeletal diseases, hypertension and depression remained independently associated with QOL and satisfaction with health after the model was adjusted. The data that was obtained can be used to direct care strategies for the most vulnerable elderly people, with particular attention to issues that affect the environment.

  10. Shear wave velocity versus quality factor: results from seismic noise recordings

    Science.gov (United States)

    Boxberger, Tobias; Pilz, Marco; Parolai, Stefano

    2017-08-01

    The assessment of the shear wave velocity (vs) and shear wave quality factor (Qs) for the shallow structure below a site is necessary to characterize its site response. In the past, methods based on the analysis of seismic noise have been shown to be very efficient for providing a sufficiently accurate estimation of the vs versus depth at reasonable costs for engineering seismology purposes. In addition, a slight modification of the same method has proved to be able to provide realistic Qs versus depth estimates. In this study, data sets of seismic noise recorded by microarrays of seismic stations in different geological environments of Europe and Central Asia are used to calculate both vs and Qs versus depth profiles. Analogous to the generally adopted approach in seismic hazard assessment for mapping the average shear wave velocity in the uppermost 30 m (vs30) as a proxy of the site response, this approach was also applied to the quality factor within the uppermost 30 m (Qs30). A slightly inverse correlation between both parameters is found based on a methodological consistent determination for different sites. Consequently, a combined assessment of vs and Qs by seismic noise analysis has the potential to provide a more comprehensive description of the geological structure below a site.

  11. Average-energy games

    Directory of Open Access Journals (Sweden)

    Patricia Bouyer

    2015-09-01

    Full Text Available Two-player quantitative zero-sum games provide a natural framework to synthesize controllers with performance guarantees for reactive systems within an uncontrollable environment. Classical settings include mean-payoff games, where the objective is to optimize the long-run average gain per action, and energy games, where the system has to avoid running out of energy. We study average-energy games, where the goal is to optimize the long-run average of the accumulated energy. We show that this objective arises naturally in several applications, and that it yields interesting connections with previous concepts in the literature. We prove that deciding the winner in such games is in NP inter coNP and at least as hard as solving mean-payoff games, and we establish that memoryless strategies suffice to win. We also consider the case where the system has to minimize the average-energy while maintaining the accumulated energy within predefined bounds at all times: this corresponds to operating with a finite-capacity storage for energy. We give results for one-player and two-player games, and establish complexity bounds and memory requirements.

  12. The level and influencing factors of quality of life in patients with brachial plexus injury

    Directory of Open Access Journals (Sweden)

    Jie Shen

    2014-06-01

    Conclusions: A brachial plexus injury significantly compromises an individual's quality of life. Multiple factors influence this quality, which should be targeted to augment the physical and psychological care provided.

  13. Quality of Life and Its Factors in Korean Elderly With Mild Cognitive Impairment.

    Science.gov (United States)

    Kang, Younhee; Lee, Eliza

    2017-06-01

    Based on the secondary data analysis, this study aimed to identify quality of life and factors that affect quality of life among Korean elderly with mild cognitive impairment. Demographic characteristics, physical factors, and psychosocial factors as well as quality of life of the elderly with mild cognitive impairment were comprehensively measured. The research subjects consisted of 348 home-resident elderly and their quality of life scores were relatively high at 29.86. Their quality of life varied according to education and gender, and instrumental activities of daily living (actual, latent), somatic symptoms, sleep quality, depression, and social support affected their quality of life. Depression and social support were predictors of quality of life. The most powerful predictor was depression (β = -.583, p quality of life among elderly with mild cognitive impairment, nursing interventions to alleviate depression and to enhance social support from family, friends, and relevant neighbors are needed.

  14. Factors associated with the impact of quality improvement collaboratives in mental healthcare: An exploratory study

    Science.gov (United States)

    2012-01-01

    Background Quality improvement collaboratives (QICs) bring together groups of healthcare professionals to work in a structured manner to improve the quality of healthcare delivery within particular domains. We explored which characteristics of the composition, participation, functioning, and organization of these collaboratives related to changes in the healthcare for patients with anxiety disorders, dual diagnosis, or schizophrenia. Methods We studied three QICs involving 29 quality improvement (QI) teams representing a number of mental healthcare organizations in the Netherlands. The aims of the three QICs were the implementation of multidisciplinary practice guidelines in the domains of anxiety disorders, dual diagnosis, and schizophrenia, respectively. We used eight performance indicators to assess the impact of the QI teams on self-reported patient outcomes and process of care outcomes for 1,346 patients. The QI team members completed a questionnaire on the characteristics of the composition, participation in a national program, functioning, and organizational context for their teams. It was expected that an association would be found between these team characteristics and the quality of care for patients with anxiety disorders, dual diagnosis, and schizophrenia. Results No consistent patterns of association emerged. Theory-based factors did not perform better than practice-based factors. However, QI teams that received support from their management and both active and inspirational team leadership showed better results. Rather surprisingly, a lower average level of education among the team members was associated with better results, although less consistently than the management and leadership characteristics. Team views with regard to the QI goals of the team and attitudes towards multidisciplinary practice guidelines did not correlate with team success. Conclusions No general conclusions about the impact of the characteristics of QI teams on the quality of

  15. Factors associated with the impact of quality improvement collaboratives in mental healthcare: An exploratory study

    Directory of Open Access Journals (Sweden)

    Versteeg Marleen H

    2012-01-01

    Full Text Available Abstract Background Quality improvement collaboratives (QICs bring together groups of healthcare professionals to work in a structured manner to improve the quality of healthcare delivery within particular domains. We explored which characteristics of the composition, participation, functioning, and organization of these collaboratives related to changes in the healthcare for patients with anxiety disorders, dual diagnosis, or schizophrenia. Methods We studied three QICs involving 29 quality improvement (QI teams representing a number of mental healthcare organizations in the Netherlands. The aims of the three QICs were the implementation of multidisciplinary practice guidelines in the domains of anxiety disorders, dual diagnosis, and schizophrenia, respectively. We used eight performance indicators to assess the impact of the QI teams on self-reported patient outcomes and process of care outcomes for 1,346 patients. The QI team members completed a questionnaire on the characteristics of the composition, participation in a national program, functioning, and organizational context for their teams. It was expected that an association would be found between these team characteristics and the quality of care for patients with anxiety disorders, dual diagnosis, and schizophrenia. Results No consistent patterns of association emerged. Theory-based factors did not perform better than practice-based factors. However, QI teams that received support from their management and both active and inspirational team leadership showed better results. Rather surprisingly, a lower average level of education among the team members was associated with better results, although less consistently than the management and leadership characteristics. Team views with regard to the QI goals of the team and attitudes towards multidisciplinary practice guidelines did not correlate with team success. Conclusions No general conclusions about the impact of the characteristics of

  16. [Quality of realgar and its influencing factors based on toxicity].

    Science.gov (United States)

    Jiang, La; Xu, Huan-Hua; Jiang, Zhen-Hong; Yang, Shi-Han; Shi, Qiao-Li; Ma, Zeng-Chun; Gao, Yue; Chen, Zhi-Wu

    2017-12-01

    The results of a toxicity analysis showed differences from those of the existing experimental data. Therefore, HPLC-ICP-MS was used to analyze the soluble arsenic content at different valences in realgar prepared with water grind processing, which were collected from 3 companies. The results showed that the free arsenic of the 3 companies did not exceed the limit of Chinese Pharmacopoeia. However, if the free arsenic was calculated based on the total value of As(Ⅲ) + As(Ⅴ), free arsenic of 1 company exceeded the limit of Chinese Pharmacopoeia. The method of determining free arsenic in Chinese Pharmacopoeia. was ancient Cai's arsenic detection method, which had a certain limitation and failed to effectively avoid the toxicity of remaining arsenics except for trivalent arsenic. Then, we examined the effects of water and temperature on the content and form of soluble arsenic in realgar. The results showed that the content of soluble arsenic increased with the rise of water content, and the form of soluble arsenic did not change, there were only As (Ⅲ) and As (Ⅴ); With the simple temperature factor, there was an increasing trend in the content of soluble arsenic in the samples, the maximum increment was As (Ⅲ) 2.489 mg•g⁻¹ and As (Ⅴ) 0.546 mg•g⁻¹; When water and temperature played an synergistic effect, the increase of soluble arsenic in the samples significantly changed, the maximum increment was As (Ⅲ) 23.690 mg•g⁻¹, As (Ⅴ) 0.468 mg•g⁻¹, respectively. Through comprehensive analysis, we believed that the quality of realgar was susceptible to water content and temperature. Both of the single effect of water content and the synergistic effect of water and temperature can significantly change the content of soluble arsenic in realgar, and the water content was a high-risk factor. In the current Chinese Pharmacopoeia 2015 version, the free arsenic detection method had limitations, hence new techniques shall be introduced; At the same

  17. Factors associated with women's perception of and satisfaction with quality of intrapartum care practices in Swaziland.

    Science.gov (United States)

    Gamedze-Mshayisa, Dumsile Innocentia; Kuo, Su-Chen; Liu, Chieh-Yu; Lu, Yu-Ying

    2018-02-01

    giving birth is a lifetime event, where the quality of care a woman receives has the potential to affect her or her baby both physically and emotionally either on a short-term or long-term basis. This study aimed at identifying factors associated with women's perception of and satisfaction with the quality of intrapartum care as well as their future loyalty intentions in two regional hospitals in Swaziland. this is a correlational study where data were collected from 383 women conveniently selected from two regional hospitals where they gave birth. The QPP-I, SHPC, AND WOM questionnaires were used for data collection which was done from July to September 2016. the results reflected that women's satisfaction with quality of intrapartum care total mean score was (M±SD = 74.17±10.1), a perceived reality of intrapartum care practices total mean score of (M±SD = 96.94±16.0), a high subjective importance total mean score (M±SD = 117.78±10.5), and above average future loyalty intension total mean score (M±SD 1.67±0.69). Factors that significantly predicted women's satisfaction with quality of intrapartum care include, perceived quality (F = 54.13, p<0.001 with 28% R 2 variance), demographic variables (educational level, employment status and gestational weeks) (F = 10.66, p =<0.001, with 8% R 2 variance), future loyalty intensions (F = 48.57, p<0.001with 7% R 2 variance), and subjective importance (F = 44.74, p<0.001 with 1% R 2 variance). the study revealed that women's perceived reality of and satisfaction with the quality of intrapartum care practices was suboptimal. Improvement should be focused on evidence-based intrapartum care that is women-centered, involving the clients in decision-making and also a comprehensive childbirth education for the pregnant mothers. Copyright © 2017 Elsevier Ltd. All rights reserved.

  18. Factors Affecting Quality of Laboratory Services in Public and Private Health Facilities in Addis Ababa, Ethiopia

    OpenAIRE

    Mesfin, Eyob Abera; Taye, Binyam; Belay, Getachew; Ashenafi, Aytenew; Girma, Veronica

    2017-01-01

    Background Quality laboratory service is an essential component of health care system but in Sub-Saharan Africa such as Ethiopia, laboratories quality system remains weak due to several factors and it needs more attention to strengthen its capacity and quality system. Methodology A cross sectional study was conducted using a questionnaire to assess factors affecting the quality of laboratory service at private and public health institutions in Addis Ababa. Results A total of 213 laboratory pr...

  19. Fractionated irradiation of meningiomas of the optic nerve: the average ocular dose is a predictive factor of the visual function future

    International Nuclear Information System (INIS)

    Abouaf, L.; Tilikete, C.; Vighetto, A.; Girard, N.; Mornex, F.; Lefort, T.

    2011-01-01

    As radiotherapy is efficient in terms of tumour growth control in the case of optic nerve meningiomas and allows a stabilization of visual acuity, but as radio-induced toxicity may threaten the functional benefit, the authors report a study which aimed at identifying predictive factors of a pejorative evolution of the visual function for patients submitted to radiotherapy for an optic nerve meningioma. Files of ten patients have been analyzed in terms clinical, radiological and dosimetric aspects. Visual acuity and visual field before and after conformational radiotherapy have been compared by means of the Wilcoxon Rank test. It appears that the visual function future can be threatened by irradiation side effects. Short communication

  20. Averaging operations on matrices

    Indian Academy of Sciences (India)

    2014-07-03

    Jul 3, 2014 ... Arithmetic mean of objects in a space need not lie in the space. [Frechet; 1948] Finding mean of right-angled triangles. S = {(x,y,z) ∈ R+3 : x2 + y2 = z2}. = {. [ z x − ιy x + ιy z. ] : x,y,z > 0,z2 = x2 + y2}. Surface of right triangles : Arithmetic mean not on S. Tanvi Jain. Averaging operations on matrices ...

  1. Averaging operations on matrices

    Indian Academy of Sciences (India)

    2014-07-03

    Jul 3, 2014 ... flow at each voxel of brain scan. • Elasticity: 6 × 6 pd matrices model stress tensors. • Machine Learning: n × n pd matrices occur as kernel matrices. ... then the expected extension of geometric mean A1/2B1/2 is not even self-adjoint, leave alone positive definite. Tanvi Jain. Averaging operations on matrices ...

  2. Factors Associated With Quality of Life in Patients With Diabetic Foot Ulcers

    Directory of Open Access Journals (Sweden)

    Nasiriziba

    2015-01-01

    Full Text Available Background Diabetic foot ulcer (DFU is a serious and costly complication in diabetes which affects approximately 15% of patients with diabetes and affects their quality of life (QOL. Objectives The purpose of this study was to investigate the factors associated with QOL in patients with DFU. Patients and Methods This cross-sectional study was performed on 60 patients (32 males and 28 females hospitalized for DFU, performed through convenience sampling. Data related factors and the QOL questionnaire for patients with DFU were abridged. This questionnaire has 29 questions in six dimensions of enjoying life, physical health, daily activities dependence, negative emotions, concern about wound, and wound caring, which evaluate the QOL in patients with DFU. The scoring method for this tool is five optional Likert. Descriptive and analytic statistical methods were used to analyze the data. Results Of the 60 patients with DFU, 53% were male and 47% female with an average age of 58.08 ± 11.95 years and average QOL of 41.1 ± 9.15. Statistical analysis showed that age (P = 0.002, employment (P ≤ 0001, socioeconomic status (P = 0.016, leg ulcer (P ≤ 0001, and the number of foot ulcer (P = 0.017 had a statistically significant relationship with QOL and its dimensions. Other variables did not have a significant relationship with QOL, but some of them such as smoking during negative emotions (P = 0.046 and marital status affecting the foot care difficulties (P = 0.03 had significant statistical relationships with QOL. Conclusions Diabetic foot ulcer affects different aspects of life and can reduce patient’s QOL. To improve the care behaviors and have a better control of foot ulcers and improve the QOL for these patients, taking into account factors such as age, occupation, marital status, number of wounds, and economic status is essential to plan for care and health needs in these patients.

  3. CRITERIA AND FACTORS THAT INSURE THE QUALITY IN PROVISION OF AUDIT SERVICES, DIFFERENT FROM AUDIT

    Directory of Open Access Journals (Sweden)

    Antoniuk O.

    2018-03-01

    Full Text Available Introduction. Quality management of audit services requires further theoretical research and development in the field of audit activity and quality of audit, continuous improvement of the organization and methodology in providing audit services. Purpose. The article deals with the theoretical and practical questions of assessing the quality of audit services that are different from the audit in order to identify ways to improve the methodological quality assurance in the provision of these services. Results. It is proved that factors (economic, methodological, organizational and conditions have an impact on the quality of audit services. This, in general, affects the content of audit services regulation and their social and economic significance. The terms of quality assurance, which are considered in the article, have a decisive influence on the implementation of those specific factors that directly change the properties of the audit services and create the services of the required quality. Assurance of the quality of audit services is considered as the creation of the necessary conditions for the implementation of all factors that affect the quality of audit services, maintanence of the given level of quality of audit services in accordance with the requirements of legal acts and market needs. Conclusions. The issue of identifying criteria, factors and indicators for assessing the quality in audit services is raised. In the generalized form, the matrix of quality assurance of audit services is presented, which indicates the interconnection of various conditions, factors, quality indicators in audit services.

  4. Some factors governing the water quality of microtidal estuaries in ...

    African Journals Online (AJOL)

    The role of coastal geomorphology and Man-made alterations, including reduced river flow through dam construction, determines, at least in part, the water quality of South African microtidal estuaries. To offer increased understanding of the manner in which these features may modify water quality, a short description of the ...

  5. Factors influencing quality of leadership in public higher institutions ...

    African Journals Online (AJOL)

    The study investigates the quality of leadership in higher institutions of learning in Ghana using data from three (3) public universities. Using a mixed method, the study employed both exploratory and causal design to investigate the dimensions of Quality of Leadership from the Ghanaian perspective. The paper proceeded ...

  6. The Impact Factor: Implications of Open Access on Quality

    Science.gov (United States)

    Grozanick, Sara E.

    2010-01-01

    There has been debate about the extent to which open access affects the quality of scholarly work. At the same time, researchers have begun to look for ways to evaluate the quality of open access publications. Dating back to the growth of citation indexes during the 1960s and 1970s, citation analysis--examining citation statistics--has since been…

  7. Some Factors Affecting the Quality of Meat from Ruminants and ...

    African Journals Online (AJOL)

    Further, means for obtaining quality meat under Tanzanian conditions are pointed out. Meat quality encompasses various attributes ranging from carcass composition to health and production-related issues including animal welfare. These attributes can be manipulated to man's advantage at different stages of obtaining ...

  8. Reclaiming Quality in Higher Education: A Human Factor Approach

    Science.gov (United States)

    Cheng, Ming

    2017-01-01

    Interest in quality is well established within higher education. This paper will critically review the most commonly used definitions of quality: fitness for purpose and value for money. It will point out that these two definitions are important but they ignore the emancipatory power of higher education and the development needs of academics and…

  9. WHAT FACTORS INFLUENCE QUALITY SERVICE IMPROVEMENT IN MONTENEGRO: EMPIRICAL ANALYSIS

    Directory of Open Access Journals (Sweden)

    Djurdjica Perovic

    2013-03-01

    Full Text Available In this paper, using an Ordinary Least Square regression (OLS, we investigate whether intangible elements influence tourist's perception about service quality. Our empirical results based on tourist survey in Montenegro, indicate that intangible elements of tourism product have positive impact on tourist's overall perception of service quality in Montenegro.

  10. Factors Influencing Perceptions of Service Quality in Cooperative Extension Workers

    Science.gov (United States)

    Anaza, Nwamaka A.; Rutherford, Brian N.; Widdows, Richard

    2012-01-01

    The authors examined the direct and indirect impact of empowerment on service quality as perceived by Extension staff. Using a sample 283 respondents, the results revealed that along with empowerment, constructs such as job satisfaction and organizational identification positively affected service quality. Undoubtedly, each of these variables…

  11. On the Use of Quality Factor in Seismology (Invited)

    Science.gov (United States)

    Morozov, I. B.

    2009-12-01

    Despite its canonical character and widespread use in attenuation studies, suitability of the quality factor Q for describing the Earth still needs to be reviewed. Specifically, we need to consider the following fundamental questions: 1) How close is Q-1 to representing a true medium property? 2) Theoretically, can or should Q-1 be related to complex arguments of the elastic moduli of the medium? and 3) What attenuation property is typically measured and transformed into Q? An attempt for answering these questions shows that not Q but the spatial attenuation coefficient, α, represents a consistent property of energy dissipation by the medium which is also actually measured in most cases. Transformation of α into the apparent Q = πf/αV (V is the wave velocity and f - frequency) makes this Q a phenomenological attribute of the wave and also leads to its built-in positive frequency dependence. Such strong positive Q(f) is often reported, particularly for the “scattering Q,” but it may be entirely due to near-constant values of α. The above transformation is also prone of the well-known uncertainties related to the compensation of geometrical spreading (GS). Q can be adequately used to model wave amplitudes but it includes the effects of the structure (e.g., diving or reflected-wave GS) but becomes ambiguous when applied to describing the in-situ attenuation. By using α(f) in interpretation, such effects are explicitly measured, and several general observations can be made, such as: 1) α(f) often shows linear dependencies on f in both real data and modeling, whereas the corresponding Q(f) may be complex; 2) the zero-frequency limit of α(f)=γ can be interpreted as a generalized measure of geometrical spreading, and 3) frequency-dependent in-situ Q is not as widespread as it is commonly thought. Quantity γ is variable and correlates with tectonic age of the lithosphere, whereas the effective frequency-independent Qe is typically significantly higher than

  12. Predictive factors of subjective sleep quality and insomnia complaint in patients with stroke: implications for clinical practice.

    Science.gov (United States)

    Da Rocha, Patrícia C; Barroso, Marina T M; Dantas, Ana Amália T S G; Melo, Luciana P; Campos, Tania F

    2013-09-01

    The complaints regarding sleep problems have not been well identified after a stroke. The aim of this study was to investigate the predictive factors of sleep quality and insomnia complaints in patients with stroke. A total of 70 subjects, 40 patients (57 ± 7 years) and 30 healthy controls (52 ± 6 years) assessed by the Pittsburgh Sleep Quality Index (PSQI) and the Sleep Habits Questionnaire took part in the study. The data were analyzed using the chi-square test, the Student's t-test and logistic regression analysis. On average, the patients showed poor sleep quality (patients: 6.3 ± 3.5; controls: 3.9 ± 2.2; p= 0.002) and insomnia complaint was the most prevalent (patients: 37.5%; controls: 6.7%; p= 0.007). The absence of insomnia complaint (OR= 0.120; 95%CI= 0.017-0.873; p= 0.036) and the decreased latency of sleep (OR= 0.120; 95%CI= 0.017-0.873; p= 0.036) were the protective factors of sleep quality. Female sex (OR= 11.098; 95%CI= 1.167-105.559; p= 0.036) and fragmented sleep (OR= 32.040; 95%CI= 3.236-317.261; p= 0.003) were the risk factors for insomnia complaint. We suggest that complaints of poor sleep quality and insomnia should be given priority assessment during clinical diagnosis of sleep disorders in stroke.

  13. Predictive factors of subjective sleep quality and insomnia complaint in patients with stroke: implications for clinical practice

    Directory of Open Access Journals (Sweden)

    PATRICIA C. DA ROCHA

    2013-09-01

    Full Text Available The complaints regarding sleep problems have not been well identified after a stroke. The aim of this study was to investigate the predictive factors of sleep quality and insomnia complaints in patients with stroke. A total of 70 subjects, 40 patients (57 ± 7 years and 30 healthy controls (52 ± 6 years assessed by the Pittsburgh Sleep Quality Index (PSQI and the Sleep Habits Questionnaire took part in the study. The data were analyzed using the chi-square test, the Student's t-test and logistic regression analysis. On average, the patients showed poor sleep quality (patients: 6.3 ± 3.5; controls: 3.9 ± 2.2; p= 0.002 and insomnia complaint was the most prevalent (patients: 37.5%; controls: 6.7%; p= 0.007. The absence of insomnia complaint (OR= 0.120; 95%CI= 0.017-0.873; p= 0.036 and the decreased latency of sleep (OR= 0.120; 95%CI= 0.017-0.873; p= 0.036 were the protective factors of sleep quality. Female sex (OR= 11.098; 95%CI= 1.167-105.559; p= 0.036 and fragmented sleep (OR= 32.040; 95%CI= 3.236-317.261; p= 0.003 were the risk factors for insomnia complaint. We suggest that complaints of poor sleep quality and insomnia should be given priority assessment during clinical diagnosis of sleep disorders in stroke.

  14. Factors influencing quality of life in patients with active tuberculosis

    Directory of Open Access Journals (Sweden)

    Cox Victoria C

    2004-10-01

    Full Text Available Abstract Background With effective treatment strategies, the focus of tuberculosis (TB management has shifted from the prevention of mortality to the avoidance of morbidity. As such, there should be an increased focus on quality of life (QoL experienced by individuals being treated for TB. The objective of our study was to identify areas of QoL that are affected by active TB using focus groups and individual interviews. Methods English, Cantonese, and Punjabi-speaking subjects with active TB who were receiving treatment were eligible for recruitment into the study. Gender-based focus group sessions were conducted for the inner city participants but individual interviews were conducted for those who came to the main TB clinic or were hospitalized. Facilitators used open-ended questions and participants were asked to discuss their experiences of being diagnosed with tuberculosis, what impact it had on their lives, issues around adherence to anti-TB medications and information pertaining to their experience with side effects to these medications. All data were audio-recorded, transcribed verbatim, and analyzed using constant comparative analysis. Results 39 patients with active TB participated. The mean age was 46.2 years (SD 18.4 and 62% were male. Most were Canadian-born being either Caucasian or Aboriginal. Four themes emerged from the focus groups and interviews. The first describes issues related to the diagnosis of tuberculosis and sub-themes were identified as 'symptoms', 'health care provision', and 'emotional impact'. The second theme discusses TB medication factors and the sub-themes identified were 'adverse effects', 'ease of administration', and 'adherence'. The third theme describes social support and functioning issues for the individuals with TB. The fourth theme describes health behavior issues for the individuals with TB and the identified sub-themes were "behavior modification" and "TB knowledge." Conclusion Despite the ability to

  15. Quality of life of postgraduate students stricto sensu in dentistry and sociodemographic factors

    Directory of Open Access Journals (Sweden)

    Cinthia Nara Gadelha TEIXEIRA

    2017-10-01

    Full Text Available Abstract Introduction Quality of life (QL is subjective and must be based on a multidimensional construct and on positive and negative factors in the individual’s life. Objective The objective of this study was to evaluate the QL of the students of the Postgraduate Program in Dentistry (PPGO of the Federal University of Ceará. Material and method Cross-sectional study with a quantitative approach, conducted with 88 students regularly enrolled in PPGO. The QL was measured by the World Health Organization Questionnaire for Quality of Life-bref (WHOQOL-bref. For a better analysis of the QL scores, they were categorized into three levels: dissatisfaction, uncertainty and satisfaction. A multinomial logistic regression model was used. Result The majority of the respondents (55.7% was classified in the area of satisfaction with QL, with 14,05 total average scores, corresponding to 62.8% of the total. By associating the socio-demographic data with the categories of analysis of QL, it was observed relevant in single students (p=0.005, those who considered themselves religious (p=0.041 and those who did not have a postgraduate scholarship (p=0.025, being evaluated in the area of dissatisfaction/uncertainty about the QL. Conclusion It was concluded that marital status, religion and scholarship in postgraduate school were relevant in the QL of stricto sensu postgraduate students in Dentistry.

  16. Average is Over

    Science.gov (United States)

    Eliazar, Iddo

    2018-02-01

    The popular perception of statistical distributions is depicted by the iconic bell curve which comprises of a massive bulk of 'middle-class' values, and two thin tails - one of small left-wing values, and one of large right-wing values. The shape of the bell curve is unimodal, and its peak represents both the mode and the mean. Thomas Friedman, the famous New York Times columnist, recently asserted that we have entered a human era in which "Average is Over" . In this paper we present mathematical models for the phenomenon that Friedman highlighted. While the models are derived via different modeling approaches, they share a common foundation. Inherent tipping points cause the models to phase-shift from a 'normal' bell-shape statistical behavior to an 'anomalous' statistical behavior: the unimodal shape changes to an unbounded monotone shape, the mode vanishes, and the mean diverges. Hence: (i) there is an explosion of small values; (ii) large values become super-large; (iii) 'middle-class' values are wiped out, leaving an infinite rift between the small and the super large values; and (iv) "Average is Over" indeed.

  17. Human Factors in Software Development Processes: Measuring System Quality

    DEFF Research Database (Denmark)

    Abrahão, Silvia; Baldassarre, Maria Teresa; Caivano, Danilo

    2016-01-01

    Software Engineering and Human-Computer Interaction look at the development process from different perspectives. They apparently use very different approaches, are inspired by different principles and address different needs. But, they definitively have the same goal: develop high quality software...... in the most effective way. The second edition of the workshop puts particular attention on efforts of the two communities in enhancing system quality. The research question discussed is: who, what, where, when, why, and how should we evaluate?...

  18. Gingivitis, Psychological Factors and Quality of Life in Children.

    Science.gov (United States)

    da Silva, Priscila de Lima; Barbosa, Taís de Souza; Amato, Juliana Neide; Montes, Ana Bheatriz Marangoni; Gavião, Maria Beatriz Duarte

    2015-01-01

    To evaluate the associations between gingivitis, emotional status and quality of life in children. Sixty-four Brazilian students (11 to 12 years old) were examined for clinical and self-reported gingivitis. The participants were divided into two groups: those with gingivitis (n = 21) and controls (n = 43). Quality of life, anxiety and depression were measured using self-administered questionnaires. Saliva was collected 30 min after waking and at bedtime to measure the diurnal decline in salivary cortisol. The results were analysed using bivariate and multivariate analyses. There were significantly more female participants in the control group. Approximately 90% of the children with gingivitis had good oral hygiene and 10.5% had satisfactory oral hygiene. There was a significant positive correlation between anxiety and depression in both clinical groups. Anxiety was negatively correlated with quality of life in the control group. Depression was negatively correlated with quality of life and cortisol concentrations in the group with gingivitis, and with quality of life in the control group. Children with gingivitis were more likely to be older and males. Older children are more likely to experience gingival bleeding. The presence of gingivitis in children may be associated with worse psychological well-being, possibly compromising the quality of life.

  19. Factors affecting the incidence of first-quality wheels of Trentingrana cheese.

    Science.gov (United States)

    Bittante, G; Cecchinato, A; Cologna, N; Penasa, M; Tiezzi, F; De Marchi, M

    2011-07-01

    Trentingrana (or Grana Trentino) is a Protected Designation of Origin hard cheese produced in the eastern Italian Alps by small cooperative dairy factories. To obtain the certification of quality, wheels are evaluated at 9±1 mo of ripening and those classified as first quality are revaluated at 18±1 mo. Traditionally, the assessment is based on 2 sensory features: namely, the external aspect of the wheel and the internal texture; the latter is evaluated through the sound produced by beating the wheel with a special hammer. Traits considered in the study were the percentage of first-quality wheels of total wheels examined at 9±1 (QW(9 mo)) and 18±1 (QW(18 mo)) mo of ripening, and their combination [i.e., the percentage of first-quality wheels at 18±1 mo of ripening of the number of wheels evaluated at 9±1 mo (QW(tot))]. The experimental unit was the batch of 2 mo of production of each of 10 cooperative dairy factories from 2002 to 2008. Data were analyzed with a model that included fixed effects of dairy factory, year and season of production, and interactions between dairy factory and year, and dairy factory and season. The coefficients of determination of the models were 0.57, 0.68, and 0.67 for QW(9mo), QW(18 mo), and QW(tot), respectively. All factors significantly influenced the traits, with dairy factory being the most important source of variation, followed by season and year of production. Remarkable differences were found between the best and the worst dairy factory for QW(9 mo) (11.5%), QW(18 mo) (21.1%), and QW(tot) (25.6%). The first 4 yr of production had a negative effect on the percentage of wheels labeled as first quality and QW(tot) decreased from 74 to 64%; nevertheless, a complete recovery was detected in the following years. The season of production strongly influenced the studied traits with the best results in spring and summer, and the worst in autumn and winter. Compared with average, the 3 best dairy factories were smaller, with

  20. Americans' Average Radiation Exposure

    International Nuclear Information System (INIS)

    2000-01-01

    We live with radiation every day. We receive radiation exposures from cosmic rays, from outer space, from radon gas, and from other naturally radioactive elements in the earth. This is called natural background radiation. It includes the radiation we get from plants, animals, and from our own bodies. We also are exposed to man-made sources of radiation, including medical and dental treatments, television sets and emission from coal-fired power plants. Generally, radiation exposures from man-made sources are only a fraction of those received from natural sources. One exception is high exposures used by doctors to treat cancer patients. Each year in the United States, the average dose to people from natural and man-made radiation sources is about 360 millirem. A millirem is an extremely tiny amount of energy absorbed by tissues in the body

  1. On Averaging Rotations

    DEFF Research Database (Denmark)

    Gramkow, Claus

    2001-01-01

    In this paper two common approaches to averaging rotations are compared to a more advanced approach based on a Riemannian metric. Very often the barycenter of the quaternions or matrices that represent the rotations are used as an estimate of the mean. These methods neglect that rotations belong...... to a non-linear manifold and re-normalization or orthogonalization must be applied to obtain proper rotations. These latter steps have been viewed as ad hoc corrections for the errors introduced by assuming a vector space. The article shows that the two approximative methods can be derived from natural...... approximations to the Riemannian metric, and that the subsequent corrections are inherent in the least squares estimation....

  2. Analysis Supporting Factors and Constraints LPMP Performance in Improving the Quality of Education in Jambi Province

    Science.gov (United States)

    Rosadi, Kemas Imron

    2015-01-01

    Development of education in Indonesia is based on three aspects, namely equity and expansion, quality and relevance, as well as good governance. Quality education is influenced by several factors related to quality education managerial leaders, limited funds, facilities, educational facilities, media, learning resources, tools and training…

  3. Quality factors quantification/assurance for software related to safety in nuclear power plants

    International Nuclear Information System (INIS)

    Nunez McLeod, J.E.; Rivera, S.S.

    1997-01-01

    Quality assurance plan is needed to guarantee the software quality. The use of such a plan involves activities that should take place all along the life cycle, and which can be evaluated using the so called quality factors. This is due to the fact that the quality itself cannot be measured, but some of its manifestations can be used for this purpose. In the present work, a methodology to quantify a set of quality factors is proposed, for software based systems to be used in safety related areas in nuclear power plants. (author) [es

  4. The human factors of quality and QA in R D environments

    Energy Technology Data Exchange (ETDEWEB)

    Hill, S.G.

    1990-01-01

    Achieving quality is a human activity. It is therefore important to consider the human in the design, development and evaluation of work processes and environments in an effort to enhance human performance and minimize error. It is also important to allow for individual differences when considering human factors issues. Human Factors is the field of study which can provide information on integrating the human into the system. Human factors and quality are related for the customer of R D work, R D personnel who perform the work, and the quality professional who overviews the process of quality in the work. 18 refs., 1 fig.

  5. [Correlations between wild Polygonatum odoratum quality and main ecological factors].

    Science.gov (United States)

    Bu, Jing; Li, Deng-Wu; Wang, Dong-Mei

    2012-06-01

    By the methods of stepwise regression, principal component analysis, and grey relational grade analysis, this paper studied the correlations between the effective components (polysaccharides and water- and alcohol-soluble substances) contents and antioxidant activity of wild Polygonatum odoratum in different places and the ecological factors. Among the test ecological factors, the mean air temperature in January and in July, mean annual precipitation, frost-free period, and soil pH and total potassium were the main factors affecting the effective component contents of P. odoratum, with a contribution rate of 99.0%. As compared with soil factors, climatic factors made more contribution to the effective component contents. Soil total potassium was the key factor controlling the effective component contents, mean annual precipitation was the main decision factor, and mean air temperature in January was the main limiting factor. The plant polysaccharides and water-soluble substance contents were the key factors affecting the antioxidant activity of P. odoratum, and the capability of P. odoratum in excavating DPPH free radical increased with increasing contents of polysaccharides and water-soluble substances.

  6. Quality factor due to roughness scattering of shear horizontal surface acoustic waves in nanoresonators

    NARCIS (Netherlands)

    Palasantzas, G.

    2008-01-01

    In this work we study the quality factor associated with dissipation due to scattering of shear horizontal surface acoustic waves by random self-affine roughness. It is shown that the quality factor is strongly influenced by both the surface roughness exponent H and the roughness amplitude w to

  7. Sleep quality in women with systemic lupus erythematosus: contributing factors and effects on health-related quality of life.

    Science.gov (United States)

    Mirbagher, Leila; Gholamrezaei, Ali; Hosseini, Naeimeh; Sayed Bonakdar, Zahra

    2016-03-01

    Sleep quality disturbances are common in patients with systemic lupus erythematosus (SLE). We evaluated sleep quality and its contributors in women with SLE. Also we evaluated the effects of sleep quality disturbance on patients' health-related quality of life (HRQoL). Sleep quality was assessed in 77 women with SLE (age 36.5 ± 10.1 years) using the Pittsburgh Sleep Quality Index (PSQI). Disease activity and cumulative disease damage were assessed with standard indices. Patients completed the Hospital Anxiety and Depression Scale and LupusQoL. Univariate and multivariate analyses were performed to find contributors of poor sleep quality and association of sleep quality with HRQoL. Poor sleep quality was present in 44 patients (57.1%). Poor sleepers were older (P = 0.015) and had higher body mass index (P = 0.027) and more severe anxiety (P psychological factors were determinants of sleep quality in our study. Studies with objective sleep measures as well as interventional studies are warranted in this regard. © 2014 Asia Pacific League of Associations for Rheumatology and Wiley Publishing Asia Pty Ltd.

  8. Quality of life, socioeconomic and clinical factors, and physical exercise in persons living with HIV/AIDS

    Directory of Open Access Journals (Sweden)

    Rafaela Catherine da Silva Cunha de Medeiros

    Full Text Available ABSTRACT OBJECTIVE To analyze whether socioeconomic and clinical aspects and the aspects of healthy life habits are associated with the quality of life of persons living with HIV/AIDS. METHODS This is a cross-sectional exploratory quantitative research, with 227 persons living with HIV/AIDS, treated at two hospitals of reference between April 2012 and June 2014. We used structured questionnaires to assess socioeconomic aspects (gender, age, education level, marital status, race, socioeconomic status, dependents on family income, employment relationship, clinical parameters (time of disease diagnosis, use and time of medication, CD4 T-cell count, and viral load, and practice of physical exercise. To assess quality of life, we used the Quality of Life questionnaire (HAT-QoL. For characterization of the socioeconomic and clinical data and domains of quality of life, we conducted a descriptive analysis (simple frequency, averages, and standard deviations. We applied linear regression, following a hierarchical model for each domain of quality of life. RESULTS The domains that presented lower averages for quality of life were financial concern, concern with confidentiality, general function, and satisfaction with life. We found associations with the variables of socioeconomic status and physical exercise, therapy, and physical exercise for the last two domains, consecutively. CONCLUSIONS The quality of life of persons living with HIV/AIDS shows losses, especially in the financial and confidentiality areas, followed by general function of the body and satisfaction with life, in which socioeconomic and clinical aspects and healthy living habits, such as the practice of physical exercise, are determining factors for this reality.

  9. Quality of life, socioeconomic and clinical factors, and physical exercise in persons living with HIV/AIDS

    Science.gov (United States)

    de Medeiros, Rafaela Catherine da Silva Cunha; de Medeiros, Jason Azevedo; da Silva, Tatiane Andreza Lima; de Andrade, Ricardo Dias; de Medeiros, Danielle Coutinho; Araújo, Juliany de Souza; de Oliveira, Antônio Manuel Gouveia; Costa, Marcos Aurélio de Albuquerque; Dantas, Paulo Moreira Silva

    2017-01-01

    ABSTRACT OBJECTIVE To analyze whether socioeconomic and clinical aspects and the aspects of healthy life habits are associated with the quality of life of persons living with HIV/AIDS. METHODS This is a cross-sectional exploratory quantitative research, with 227 persons living with HIV/AIDS, treated at two hospitals of reference between April 2012 and June 2014. We used structured questionnaires to assess socioeconomic aspects (gender, age, education level, marital status, race, socioeconomic status, dependents on family income, employment relationship), clinical parameters (time of disease diagnosis, use and time of medication, CD4 T-cell count, and viral load), and practice of physical exercise. To assess quality of life, we used the Quality of Life questionnaire (HAT-QoL). For characterization of the socioeconomic and clinical data and domains of quality of life, we conducted a descriptive analysis (simple frequency, averages, and standard deviations). We applied linear regression, following a hierarchical model for each domain of quality of life. RESULTS The domains that presented lower averages for quality of life were financial concern, concern with confidentiality, general function, and satisfaction with life. We found associations with the variables of socioeconomic status and physical exercise, therapy, and physical exercise for the last two domains, consecutively. CONCLUSIONS The quality of life of persons living with HIV/AIDS shows losses, especially in the financial and confidentiality areas, followed by general function of the body and satisfaction with life, in which socioeconomic and clinical aspects and healthy living habits, such as the practice of physical exercise, are determining factors for this reality. PMID:28746573

  10. Do Non-Economic Quality of Life Factors Drive Immigration?

    Science.gov (United States)

    Pacheco, Gail Anne; Rossouw, Stephanie; Lewer, Joshua

    2013-01-01

    This paper contributes to the immigration literature by generating two unique non-economic quality of life (QOL) indices and testing their role on recent migration patterns. Applying the generated QOL indices in conjunction with four independent welfare measures to an augmented gravity model of immigration, this paper finds an insignificant…

  11. Associated Factors and Quality of Care Received among Maternal ...

    African Journals Online (AJOL)

    USER

    Deaths at a Regional Hospital in Ghana: Maternal Death Audit Review. Akosua Owusu-Sarpong. 1. *, Kwame A. Boamah ... measure to ensure the quality of institutional maternal health services in the country, all health facilities .... management of patients prior to referral and insufficient information on the referral letter from.

  12. Factors associated with low quality of life in schizophrenia

    Directory of Open Access Journals (Sweden)

    Cardoso Clareci Silva

    2005-01-01

    Full Text Available Interest in quality of life in mental health care has been stimulated by the deinstitutionalization of psychiatric patients as well as a parallel interest in understanding the scope of their daily lives. This study aims to investigate the socio-demographic and clinical variables related to low quality of life, using a cross-sectional design to evaluate quality of life by means of the QLS-BR scale. We interviewed a sample of 123 outpatients from a reference mental health center in Divinópolis, Minas Gerais State, Brazil, clinically diagnosed with schizophrenia. Univariate and multivariate logistic regression analyses were carried out. The results showed that low quality of life is associated with one or more of the following: male gender, single marital status, low income plus low schooling, use of three or more prescribed psychoactive drugs, psychomotor agitation during the interview, and current follow-up care. The study identifies plausible indicators for the attention and care needed to improve psychiatric patient treatment.

  13. Factors impacting on the microbiological quality and safety of ...

    African Journals Online (AJOL)

    hope&shola

    2010-12-06

    Dec 6, 2010 ... observed after filleting. It has been suggested that this contamination could be due to biofilms present in the distribution system for the treated sea-water used during processing. Although, sea-water could be an alternative source of water for marine fish processing plants, the treatment and the quality of the.

  14. Factors Affecting Drinking Water Quality from Source to Home in ...

    African Journals Online (AJOL)

    BACK GROUND: Water becomes contaminated with faecal material due to inadequate protection of the source, unhygienic practices of the community at the source and poor household handling practices. The objective of this study was to identify the risks associated with the protected source, to determine the water quality ...

  15. Factors influencing assessment quality in higher vocational education

    NARCIS (Netherlands)

    Baartman, L.; Gulikers, J.T.M.; Dijkstra, A.

    2013-01-01

    The development of assessments that are fit to assess professional competence in higher vocational education requires a reconsideration of assessment methods, quality criteria and (self)evaluation. This article examines the self-evaluations of nine courses of a large higher vocational education

  16. A review of the scientific basis for the quality factor for fast neutrons

    International Nuclear Information System (INIS)

    Myers, D.K.; Johnson, J.R.

    1986-04-01

    Recently, the ICRP has recommended that the quality factor for fast neutrons be increased by a factor of two. They did not give a detailed explanation of the reasons for their recommendations, but indicated that the reasons would be developed as part of a much larger review of the quality factor for all radiations. Since it is AECB's policy to follow ICRP's recommendations unless there is good reason not to do so, and since the changing of the quality factor for neutrons has not been generally accepted by other countries a review of the scientific basis for the neutron quality factor was requested. This report gives results of that review. The report reviews the available published information on the relative biological effectiveness (RBE) of neutrons and on the physical basis for the neutron quality factor for use in personnel dosimetry programs. It is concluded that some, but by no means all, of the RBE data supports an increased quality factor, but the relevance of this data to the quality factor for use in radiaton protection is not clear for two reasons. Firstly, the biological endpoints are not all directly extrapolatable to late stochastic effects in humans, and secondly, the current conservative selection of a quality factor for neutrons, and the conservative practise of equating whole body dose to the maximum dose equivalent, leads to a factor of about 10 conservatism in the assignment of neutron dose equivalents. The overall conclusion of the review is that there is no compelling reason to increase the quality factor for neutrons at least until the ICRP has completed its comprehensive review of the subject. 58 refs

  17. Sleep quality and some factors affecting sleep quality in the students living in the residence hall of a university

    OpenAIRE

    Ozge Yavuz Sari; Sarp Uner; Berkem Buyukakkus; Emine Ozlem Bostanci; Aytek Huseyin Celiksoz; Mehmet Budak

    2015-01-01

    AIM: Sleep disorders are remarkable public health problems as they adversely affect physical, mental and social health and may cause accidents and decline in academic performance and labor productivity. Aim of the study is assessing sleep quality and determining some factors affecting sleep quality in the students living in the residence hall of a university. METHOD: It is a cross sectional study conducted with 277 students, 180 of whom are female. Data were collected via a questionnaire ...

  18. Feedstock Quality Factor Calibration and Data Model Development

    Energy Technology Data Exchange (ETDEWEB)

    Richard D. Boardman; Tyler L. Westover; Garold L. Gresham

    2010-05-01

    The goal of the feedstock assembly operation is to deliver uniform, quality-assured feedstock materials that will enhance downstream system performance by avoiding problems in the conversion equipment. In order to achieve this goal, there is a need for rapid screening tools and methodologies for assessing the thermochemical quality characteristics of biomass feedstock through the assembly process. Laser-induced breakdown spectroscopy (LIBS) has been identified as potential technique that could allow rapid elemental analyses of the inorganic content of biomass feedstocks; and consequently, would complement the carbohydrate data provided by near-infrared spectrometry (NIRS). These constituents, including Si, K, Ca, Na, S, P, Cl, Mg, Fe and Al, create a number of downstream problems in thermochemical processes. In particular, they reduce the energy content of the feedstock, influence reaction pathways, contribute to fouling and corrosion within systems, poison catalysts, and impact waste streams.

  19. Factors related to the quality of life of older prisoners.

    Science.gov (United States)

    De Smet, Stefaan; De Donder, Liesbeth; Ryan, Denis; Van Regenmortel, Sofie; Brosens, Dorien; Vandevelde, Stijn

    2017-06-01

    There is evidence of an increasing emphasis on the relevance of the quality of life-paradigm as an outcome measure for clients in geriatric, forensic, as well as correctional care. This paper aims to explore to what extent variables that were categorized according to the main areas of the Good Lives Model ('the self', 'the body' and 'social life') are related to the quality of life domains of older imprisoned offenders. Data were collected by means of a structured questionnaire administered in individual interviews with 93 older prisoners aged 60 years and over in 16 prisons of the Dutch-speaking region in Belgium. Characteristics of the main GLM-areas were identified by specifically designed items as well three validated instruments (psychiatric disorders, loneliness, and frailty). Dependent variables consisted of the four sub-domains of the WHOQOL-BREF instrument which measures quality of life in four domains, namely: (1) physical health, (2) psychological health, (3) social relationships, and (4) environment. Structural equation modelling (SEM) was used for statistical analysis. Individual variables, such as satisfaction with activities, were related to the older prisoners' QoL in several domains simultaneously. Other than suicidal ideation, psychopathological symptoms had no significant relation to quality of life. Approaches enabling older prisoner to disclose their interests, experiences, and feelings are important in prison. Special attention should be given to psychiatric and age-related symptoms of older prisoners, since they may not be noted by the prison staff, as older prisoners seem to be poorer self-advocates as compared to their younger peers.

  20. PSYCHOSOCIAL FACTORS CONSUMER PERCEPTION OF QUALITY DENTAL CARE

    Directory of Open Access Journals (Sweden)

    Надежда Алексеевна Кудинова

    2013-04-01

    Full Text Available Purpose to examine the motivational space, values and health-social and psychological portrait of patients who rated the quality of dental care.Methodology historical, sociological, statistical. Results: In a market economy, patients’ satisfaction is of one of the most important regulators of demand.  Estimate of the quality of dental services (QDS depends on the patients having stable socio-psychological status being in a certain system of values, in space of some motives and needs. Got data have revealed that nearly 17.5% of patients dissatisfied with the quality of dental care, but the size of the motivational area of this group by nearly 20% higher than that of their opponents. With the structure of the motives are no such positions as "visiting the dentist enters my behavior stereotype", "I want to know the details of my dental health" and "The process of dental treatment gives me pleasure" In the group of patients who are satisfied QDS, relevance value orientation "good health" is 1.5 times the value of "education" in 2.5 times, and the value of "high social security" is 4.5 times higher than among the dissatisfied patients.Practical implications public health and health care.DOI: http://dx.doi.org/10.12731/2218-7405-2013-2-22

  1. PSYCHOSOCIAL FACTORS CONSUMER PERCEPTION OF QUALITY DENTAL CARE

    Directory of Open Access Journals (Sweden)

    Kudinova Nadezhda Alekseevna

    2013-02-01

    Full Text Available Purpose to examine the motivational space, values ​​and health-social and psychological portrait of patients who rated the quality of dental care. Methodology historical, sociological, statistical. Results: In a market economy, patients’ satisfaction is of one of the most important regulators of demand. Estimate of the quality of dental services (QDS depends on the patients having stable socio-psychological status being in a certain system of values, in space of some motives and needs. Got data have revealed that nearly 17.5% of patients dissatisfied with the quality of dental care, but the size of the motivational area of this group by nearly 20% higher than that of their opponents. With the structure of the motives are no such positions as "visiting the dentist enters my behavior stereotype", "I want to know the details of my dental health" and "The process of dental treatment gives me pleasure" In the group of patients who are satisfied QDS, relevance value orientation "good health" is 1.5 times the value of "education" in 2.5 times, and the value of "high social security" is 4.5 times higher than among the dissatisfied patients. Practical implications public health and health care.

  2. Factors influencing the surface quality of polished tool steels

    International Nuclear Information System (INIS)

    Rebeggiani, S; Rosén, B-G

    2014-01-01

    Today’s demands on surface quality of moulds for injection moulding of plastic components involve no/low defect contents and roughness levels in the nm-range for high gloss applications. Material properties as well as operating conditions influence the mould finish, and thus the final surface of moulded products. This paper focuses on how particle content and different polishing strategies influence final surface qualities of moulds. Visual estimations of polished tool steel samples were combined with non-contact 3D-surface texture analysis in order to correlate traditional assessments to more quantitative methods, and to be able to analyse the surfaces at nanometre-level. It was found that steels with a lower proportion of particles, like carbides and oxides, gave rise to smoother polished surfaces. In a comparative study of polishers from different polishing shops, it was found that while different surface preparation strategies can lead to similar final roughness, similar preparation techniques can produce high-quality surfaces from different steel grades. However, the non-contact 3D-surface texture analysis showed that not all smooth polished surfaces have desirable functional topographies for injection moulding of glossy plastic components. (paper)

  3. Factors that determine the quality of bigeye tuna, caught in the western tropical Atlantic Ocean

    Directory of Open Access Journals (Sweden)

    C.C. Nóbrega

    2014-06-01

    Full Text Available Tuna are highly prized in Oriental cuisine, and the bigeye tuna (Thunnus obesus is of great commercial importance. Quality is assessed by the tuna meat quality, freshness, texture and fat, which can be altered by factors inherent to capture, such as days of onboard storage, months of the year, whether the catch was living or dead, fish weight and year. These factors were correlated to identify those that affect quality. We obtained data from nine vessels, from January 2007 to April 2010, creating an information bank of 21,908 bigeye tuna. Fish quality and parameters were related using multiple linear regression analysis, in which the variables were included in the model by a stepwise procedure (F>4. We found that live catch, heavier fish and fewer days of storage positively affected the quality, and that there is a seasonality of quality related to biological factors, which are not amenable to control.

  4. Quality factors in the life cycle of software oriented to safety systems in nuclear power plants

    International Nuclear Information System (INIS)

    Nunez McLeod, J.E.; Rivera, S.S.

    1997-01-01

    The inclusion of software in safety related systems for nuclear power plants, makes it necessary to include the software quality assurance concept. The software quality can be defined as the adjustment degree between the software and the specified requirements and user expectations. To guarantee a certain software quality level it is necessary to make a systematic and planned set of tasks, that constitute a software quality guaranty plan. The application of such a plan involves activities that should be performed all along the software life cycle, and that can be evaluated through the so called quality factors, due to the fact that the quality itself cannot be directly measured, but indirectly as some of it manifestations. In this work, a software life cycle model is proposed, for nuclear power plant safety related systems. A set os software quality factors is also proposed , with its corresponding classification according to the proposed model. (author) [es

  5. Association between socioeconomic factors and sleep quality in an urban population-based sample in Germany

    DEFF Research Database (Denmark)

    Anders, Markus P; Breckenkamp, Jürgen; Blettner, Maria

    2014-01-01

    , but also health status, are also associated with sleep quality and can influence in part the socioeconomic levels seen in sleep quality. CONCLUSION: SES and sleep quality are associated. However, there are important additional determinants that influence the level of association between SES and sleep......BACKGROUND: Good sleep quality is essential for recovery. The risk factors of sleep disorders have been extensively investigated, but there is sparse information on the association of socioeconomic factors with a person's sleep quality. The aim of the present analysis is to investigate...... from the baseline survey taken in 2004. Sleep quality for the same participants was measured with in-depth personal interviews in 2006 using the Pittsburgh Sleep Quality Index, together with other relevant characteristics (e.g. anxiety, depression and health status). Multiple logistic regression...

  6. The determination of beam quality correction factors: Monte Carlo simulations and measurements.

    Science.gov (United States)

    González-Castaño, D M; Hartmann, G H; Sánchez-Doblado, F; Gómez, F; Kapsch, R-P; Pena, J; Capote, R

    2009-08-07

    Modern dosimetry protocols are based on the use of ionization chambers provided with a calibration factor in terms of absorbed dose to water. The basic formula to determine the absorbed dose at a user's beam contains the well-known beam quality correction factor that is required whenever the quality of radiation used at calibration differs from that of the user's radiation. The dosimetry protocols describe the whole ionization chamber calibration procedure and include tabulated beam quality correction factors which refer to 60Co gamma radiation used as calibration quality. They have been calculated for a series of ionization chambers and radiation qualities based on formulae, which are also described in the protocols. In the case of high-energy photon beams, the relative standard uncertainty of the beam quality correction factor is estimated to amount to 1%. In the present work, two alternative methods to determine beam quality correction factors are prescribed-Monte Carlo simulation using the EGSnrc system and an experimental method based on a comparison with a reference chamber. Both Monte Carlo calculations and ratio measurements were carried out for nine chambers at several radiation beams. Four chamber types are not included in the current dosimetry protocols. Beam quality corrections for the reference chamber at two beam qualities were also measured using a calorimeter at a PTB Primary Standards Dosimetry Laboratory. Good agreement between the Monte Carlo calculated (1% uncertainty) and measured (0.5% uncertainty) beam quality correction factors was obtained. Based on these results we propose that beam quality correction factors can be generated both by measurements and by the Monte Carlo simulations with an uncertainty at least comparable to that given in current dosimetry protocols.

  7. The analysis on factors affecting the quality of proton magnetic resonance spectroscopy of prostate

    International Nuclear Information System (INIS)

    Mao Lijuan; Lin Erjian; Guo Yan; Liu Mingjuan; Meng Quanfei

    2009-01-01

    Objective: To discuss all sorts of factors affecting the quality of proton magnetic resonance spectroscopy of prostate and try to find a better method to improve the quality and accuracy of MRS in prostate, and to be helpful to clinical diagnosis. Methods: Three-dimensional proton MR spectroscopy of the prostate was performed on 15 patients with prostate illness and 35 healthy volunteers. And all sorts of factors affecting the exam were analyzed. Results: The impact factors included subjective and objective factors. The subjective factors included the cooperation of patients, the localization, and the selection of ROI. The objective factors included the magnetic homogeneity, effects of peripheral tissue, lesion of the prostate, foreign body, staxis after puncture and contrast medium after enhancement. Conclusion: Just by controlling the subjective and objective factors, the quality and accuracy of the exam can be improved. (authors)

  8. Vibration factors impact analysis on aerial film camera imaging quality

    Science.gov (United States)

    Xie, Jun; Han, Wei; Xu, Zhonglin; Tan, Haifeng; Yang, Mingquan

    2017-08-01

    Aerial film camera can acquire ground target image information advantageous, but meanwhile the change of aircraft attitude, the film features and the work of camera inside system could result in a vibration which could depress the image quality greatly. This paper presented a design basis of vibration mitigation stabilized platform based on the vibration characteristic of the aerial film camera and indicated the application analysis that stabilized platform could support aerial camera to realize the shoot demand of multi-angle and large scale. According to the technique characteristics of stabilized platform, the development direction are high precision, more agility, miniaturization and low power.

  9. Pediatric Coccidioidomycosis Patients: Perceptions, Quality of Life and Psychosocial Factors

    Directory of Open Access Journals (Sweden)

    Erin Mary Gaab

    2015-08-01

    Full Text Available Research investigating the effects of coccidioidomycosis (valley fever on children and the psychosocial implications of this disease in general is lacking. This study reviews what is known about pediatric coccidioidomycosis patients. It documents the psychological functioning, quality of life, and illness perceptions of a sample of coccidioidomycosis patient families. Primary caregivers of pediatric patients and patients from a major hospital in the San Joaquin Valley of California were interviewed regarding their perceptions of disease detection, access to care and the patient/family experience.

  10. Effect of Occupational Factors on the Quality of Life of Workers in ...

    African Journals Online (AJOL)

    as work stress and job satisfaction. These occupational factors generally affect the physical, social and mental states of an individual; these factors being domains of quality of life; will invariably reflect the individual's wellbeing as a result of his occupation when assessed. Related work factors such as job satisfaction, job.

  11. Key Factors of Quality in the Sector of Tourism Services Providers: Case Study: Czech Republic

    Directory of Open Access Journals (Sweden)

    Ida Vajčnerová

    2014-01-01

    Full Text Available The paper summarizes main results of partial research aimed at detection of the key factors affecting quality in the sector of tourism services providers, namely tour operators and travel agencies. A primary questionnaire survey was conducted; the researched factors were distributed in the context of service quality dimensions (Grönroos model; the dimensions were tested in relation to sex, age and education of the respondents (ANOVA; Brown-Forsythe test. Assurance was identified as the most important dimension. The output of the study is determining the significance of individual quality factors from the perspective of a potential customer when selecting a service provider.

  12. Quality of life, general health status and related factors in women of polycystic ovary syndrome in Yazd (IRAN 2014

    Directory of Open Access Journals (Sweden)

    Farzaneh Ebrahimi

    2016-07-01

    Full Text Available polycystic ovary syndrome leads to augmentation of behavioral disorders among women and the affects their quality of life. The present study is being carried out in order to assess the quality of life and the level of general health in women suffering polycystic ovary syndrome in Baghayipour Treatment Center customers in the city of Yazd in IRAN 2013-14 and its relevant factors. This descriptive-analytical study has been done in a cross-sectional method during nine months on seventy three women who were suffering polycystic ovary syndrome through convenience sampling technique. For data collection PCOSQ and GHQ-28 surveys are used. Factors to enter the study involve the age range of 15-49, affliction with PCO, satisfaction of taking part in a study and the factors for leaving it including being affected with galactorrhoea (i.e. automatic lactation from breasts, thyroid problems, Cushing syndrome or the consumers of corticosteroid drugs. The data were analyzed by means of SPSS software and the descriptive statistics tests and regression. The results of descriptive statistics tests indicated that the average age of 26.28± 5.59 years, body mass index (BMI of 28.09 ± 5.06, %5.5 of the participants are illiterate, %17.8 of them are people with less than high school diploma, %24.7 have high school diploma degree, and %52.1 of them have university degrees. The average score for the quality of life among women was 111.36 ± 21.39 as well. The greatest factor influencing the quality of life according to the achieved score in these patients were menstruation problems, hirsutism, emotional problems, weight, and finally infertility respectively. By means of regression test there was a meaningful statistical correlation with significance level value of (p<0.05 between the quality of life with BMI, number of pregnancy, intervals between menstruation cycles, and the extent of satisfaction with body image. Polycystic ovary syndrome has a negative impact on

  13. A Multivariate Evaluation of Factors Affecting the Quality of Freshly Frozen Tissue Specimens.

    Science.gov (United States)

    Wang, Tong-Hong; Chen, Chin-Chuan; Liang, Kung-Hao; Chen, Chi-Yuan; Chuang, Wen-Yu; Ueng, Shir-Hwa; Chu, Pao-Hsien; Huang, Chung-Guei; Chen, Tse-Ching; Hsueh, Chuen

    2017-08-01

    Well-prepared and preserved freshly frozen specimens are indispensable materials for clinical studies. To manage specimen quality and to understand the factors potentially affecting specimen quality during preservation processes, we analyzed the quality of RNA and genomic DNA of various tissues collected between 2002 and 2011 in Linkou Chang Gung Memorial Hospital, Taiwan. During this period, a total of 1059 freshly frozen specimens from eight major cancer categories were examined. It was found that preservation duration, organ origin, and tissue type could all influence the quality of RNA samples. The increased preservation period correlated with decreased RNA quality; the brain, breast, and stomach RNA specimens displayed faster degradation rates than those of other organs, and RNA specimens isolated from tumor tissues were apparently more stable than those of other tissues. These factors could all be used as quality predictors of RNA quality. In contrast, almost all analyses revealed that the genomic DNA samples had good quality, which was not influenced by the aforementioned factors. The results assisted us in determining preservation factors that affect specimen quality, which could provide evidence for improving processes of sample collection and preservation. Furthermore, the results are also useful for researchers to adopt as the evaluation criteria for choosing specimen collection and preservation strategies.

  14. Factors affecting quality of nurse shift handover in the emergency department.

    Science.gov (United States)

    Thomson, Heather; Tourangeau, Ann; Jeffs, Lianne; Puts, Martine

    2018-04-01

    The aim of this study was to explore and test factors hypothesized to influence quality of Emergency Department nurse-to-nurse shift handover communication. Nurse-to-nurse shift handover communication includes the transfer of information and responsibility for patients at shift change. The unique environment of the Emergency Department, where there is a high degree of patient unpredictability, increased patient volumes and rapid patient turnover, can create challenges for high quality handover communication. There is considerable literature addressing handover communication and factors that influence quality or effectiveness. However, few studies have empirically tested those factors. A quantitative, cross-sectional design was used to test a conceptual model of factors hypothesized to influence quality of handover communication. In 2014, data were gathered using surveys mailed to Emergency Department nurses across Ontario, Canada. The final eligible sample was 231 of 576 for an overall response rate of 40.1%. Analysis was performed using backwards elimination stepwise multiple linear regression. Four statistically significant explanatory variables were retained in the final multiple regression model, explaining 34% (p quality. Handover quality was increased when patients flowed smoothly through triage, when nurses experienced positive intrusions, in the presence of a positive safety climate and when there were positive relationships between incoming and outgoing nurses. By understanding those factors that contribute to handover quality, it is possible to develop targeted interventions aimed at improving the quality of Emergency Department nurse-to-nurse shift handover. © 2017 John Wiley & Sons Ltd.

  15. Quality of synthetic speech perceptual dimensions, influencing factors, and instrumental assessment

    CERN Document Server

    Hinterleitner, Florian

    2017-01-01

    This book reviews research towards perceptual quality dimensions of synthetic speech, compares these findings with the state of the art, and derives a set of five universal perceptual quality dimensions for TTS signals. They are: (i) naturalness of voice, (ii) prosodic quality, (iii) fluency and intelligibility, (iv) absence of disturbances, and (v) calmness. Moreover, a test protocol for the efficient indentification of those dimensions in a listening test is introduced. Furthermore, several factors influencing these dimensions are examined. In addition, different techniques for the instrumental quality assessment of TTS signals are introduced, reviewed and tested. Finally, the requirements for the integration of an instrumental quality measure into a concatenative TTS system are examined.

  16. Systematic monitoring of male circumcision scale-up in Nyanza, Kenya: exploratory factor analysis of service quality instrument and performance ranking.

    Science.gov (United States)

    Omondi Aduda, Dickens S; Ouma, Collins; Onyango, Rosebella; Onyango, Mathews; Bertrand, Jane

    2014-01-01

    Considerable conceptual and operational complexities related to service quality measurements and variability in delivery contexts of scaled-up medical male circumcision, pose real challenges to monitoring implementation of quality and safety. Clarifying latent factors of the quality instruments can enhance contextual applicability and the likelihood that observed service outcomes are appropriately assessed. To explore factors underlying SYMMACS service quality assessment tool (adopted from the WHO VMMC quality toolkit) and; determine service quality performance using composite quality index derived from the latent factors. Using a comparative process evaluation of Voluntary Medical Male Circumcision Scale-Up in Kenya site level data was collected among health facilities providing VMMC over two years. Systematic Monitoring of the Medical Male Circumcision Scale-Up quality instrument was used to assess availability of guidelines, supplies and equipment, infection control, and continuity of care services. Exploratory factor analysis was performed to clarify quality structure. Fifty four items and 246 responses were analyzed. Based on Eigenvalue >1.00 cut-off, factors 1, 2 & 3 were retained each respectively having eigenvalues of 5.78; 4.29; 2.99. These cumulatively accounted for 29.1% of the total variance (12.9%; 9.5%; 6.7%) with final communality estimates being 13.06. Using a cut-off factor loading value of ≥0.4, fifteen items loading on factor 1, five on factor 2 and one on factor 3 were retained. Factor 1 closely relates to preparedness to deliver safe male circumcisions while factor two depicts skilled task performance and compliance with protocols. Of the 28 facilities, 32% attained between 90th and 95th percentile (excellent); 45% between 50th and 75th percentiles (average) and 14.3% below 25th percentile (poor). the service quality assessment instrument may be simplified to have nearly 20 items that relate more closely to service outcomes. Ranking of

  17. Systematic monitoring of male circumcision scale-up in Nyanza, Kenya: exploratory factor analysis of service quality instrument and performance ranking.

    Directory of Open Access Journals (Sweden)

    Dickens S Omondi Aduda

    Full Text Available Considerable conceptual and operational complexities related to service quality measurements and variability in delivery contexts of scaled-up medical male circumcision, pose real challenges to monitoring implementation of quality and safety. Clarifying latent factors of the quality instruments can enhance contextual applicability and the likelihood that observed service outcomes are appropriately assessed.To explore factors underlying SYMMACS service quality assessment tool (adopted from the WHO VMMC quality toolkit and; determine service quality performance using composite quality index derived from the latent factors.Using a comparative process evaluation of Voluntary Medical Male Circumcision Scale-Up in Kenya site level data was collected among health facilities providing VMMC over two years. Systematic Monitoring of the Medical Male Circumcision Scale-Up quality instrument was used to assess availability of guidelines, supplies and equipment, infection control, and continuity of care services. Exploratory factor analysis was performed to clarify quality structure.Fifty four items and 246 responses were analyzed. Based on Eigenvalue >1.00 cut-off, factors 1, 2 & 3 were retained each respectively having eigenvalues of 5.78; 4.29; 2.99. These cumulatively accounted for 29.1% of the total variance (12.9%; 9.5%; 6.7% with final communality estimates being 13.06. Using a cut-off factor loading value of ≥0.4, fifteen items loading on factor 1, five on factor 2 and one on factor 3 were retained. Factor 1 closely relates to preparedness to deliver safe male circumcisions while factor two depicts skilled task performance and compliance with protocols. Of the 28 facilities, 32% attained between 90th and 95th percentile (excellent; 45% between 50th and 75th percentiles (average and 14.3% below 25th percentile (poor.the service quality assessment instrument may be simplified to have nearly 20 items that relate more closely to service outcomes

  18. Stability of period and quality factor of free core nutation

    Czech Academy of Sciences Publication Activity Database

    Vondrák, Jan; Ron, Cyril

    2009-01-01

    Roč. 6, č. 3 (2009), s. 217-224 ISSN 1214-9705. [Czech-Polish Workshop on Recent Geodynamics /9./. Náchod, 12.11.2008-14.11.2009] R&D Projects: GA MŠk(CZ) LC506 Institutional research plan: CEZ:AV0Z10030501 Keywords : Earth orientation * nutation * geophysical excitation * VLBI Subject RIV: BN - Astronomy, Celestial Mechanics, Astrophysics Impact factor: 0.275, year: 2009

  19. Nontraditional factors influencing the quality of life of hemodialysis patients

    Directory of Open Access Journals (Sweden)

    Diana-Cristina Varela

    2014-06-01

    Full Text Available Introduction: The prevalence of CKD patients in advanced stages with dialysis requirement continues to grow. A goal for the medical team, the patient and their caregivers is to provide a treatment that offers an impact on the prognosis and quality of life (QOL. Methods: In 100 patients with CKD on hemodialysis, randomized assigned, the quality of life by SF-36 was assessed, it was evaluated the functional capacity using the Karnofsky, ability to perform basic tasks of daily life through the index Barthel, presence of depression using the Beck test, family functioning through family APGAR, cognitive state through Minimental and presence of comorbidities using the Charlson index correlated with the sum of physical components (PCS and mental components (MCS of the SF-36 in patients in two renal units in Medellín and Bogotá, Colombia. Results: A decrease in QOL in the physical components (PCS Mental components (MCS regarding the general population. A significant correlation between low PCS and diabetes mellitus (-16 p=0.008 95% CI 2.49 was found. Low MCS showed relation with PTH (p=0.046 95% CI 0.000-0.014, Karnofsky index (p=0.034 95% CI 0.244 to 5.984 and Beck depression test (p=0.000 95% CI -13.606 to 6.253. Conclusions: The QOL of hemodialysis patients is affected with more impact on PCS, there is significant relationship between MCS with functional status and depression. To improve QOL in hemodialysis patients, non traditionally-measured variables should be measured and monitored and the therapeutic focus should be optimized addressed to physical rehabilitation, nutritional, functional and psychological state.

  20. The Impact of Soft Factors on Quality Improvement in Manufacturing Industry

    Science.gov (United States)

    Chan, Shiau Wei; Fauzi Ahmad, Md; Kong, Mei Wan

    2017-08-01

    Nowadays, soft factors have become the key factors of success in quality improvement of an organisation. Many organisations have neglected the importance of soft factors, this may influence the organisational performance. Hence, the purpose of this research is to examine the impact of soft factors on quality improvement in manufacturing industries. Six hypotheses were examined while considering six dimensions of soft factors including management commitment, customer focus, supplier relationship, employee involvement, training and education, and reward and recognition that have a positive impact on quality improvement. In this study, eighty one managers from the quality department were randomly selected in the manufacturing industry in Batu Pahat, Johor. The questionnaires were distributed to them. The researcher analysed the quantitatively collected data using descriptive analysis and correlation analysis. The findings of this study revealed that all soft factors are correlated to the quality improvement in an organisation with a high significant value but the regression analysis shows that the supplier relationship and employee involvement has more significant impact on quality improvement as compared to other soft factors which contributes of this study.

  1. Effective quality factors for neutrons based on the revised ICRP/ICRU recommendations

    International Nuclear Information System (INIS)

    Veinot, K. G.; Hertel, N. E.

    2005-01-01

    The quality factor (Q) is intended to relate the biological effectiveness of a radiation to the absorbed dose delivered in tissue. Quality factors are defined as a function of the unrestricted linear energy transfer (L) relationship in water and are used with operational quantities. Radiation weighting factors (wR) are used in protection quantities to take into account total radiation detriment. While the International Commission on Radiological Protection (ICRP) defines the Q(L) relationship, the International Commission on Radiation Units and Measurements (ICRU) recommends the charged particle stopping power and range data. If either of these data recommendations change, the quality factors must be recomputed. The latest guidance from both organisations applicable to neutron quality factors are the ICRP Publication 60 (Q(L) relationship) and the ICRU Report 49 (stopping power and range data). In the present study, absorbed dose conversion coefficients (pGy cm 2 ) were calculated for two operational quantities defined by the ICRU - the ambient absorbed dose and the personal absorbed dose. Dose-equivalent (pSv cm 2 ) conversion coefficients were also computed using mean quality factors based on ICRP 60 and ICRU 49 recommendations. Effective quality factors were then calculated from the ratio of the dose-equivalent to the absorbed dose conversion coefficients for both the personal dose-equivalent and ambient dose-equivalent and compared to values reported in the literature. (authors)

  2. Factors related to quality of life among older adults in Bangladesh: A cross sectional survey.

    Science.gov (United States)

    Uddin, Mohammad Abbas; Soivong, Pratum; Lasuka, Duangruedee; Juntasopeepun, Phanida

    2017-12-01

    This cross-sectional design study aimed to describe quality of life and examine factors related to quality of life among older adults in Bangladesh. Convenience sampling was used to recruit 280 older adults from ten villages in two southern districts. The results demonstrate that the majority of the participants reported an overall moderate score of quality of life. Moreover, participants' sleep problems, depression, religiosity, and activities of daily living were negatively correlated with quality of life whereas social support and health service availability were positively correlated with quality of life. Implementing intervention programs upon the significant related factors to improve older adults' quality of life is recommended. © 2017 John Wiley & Sons Australia, Ltd.

  3. Winter wheat quality monitoring and forecasting system based on remote sensing and environmental factors

    International Nuclear Information System (INIS)

    Haiyang, Yu; Yanmei, Liu; Guijun, Yang; Xiaodong, Yang; Chenwei, Nie; Dong, Ren

    2014-01-01

    To achieve dynamic winter wheat quality monitoring and forecasting in larger scale regions, the objective of this study was to design and develop a winter wheat quality monitoring and forecasting system by using a remote sensing index and environmental factors. The winter wheat quality trend was forecasted before the harvest and quality was monitored after the harvest, respectively. The traditional quality-vegetation index from remote sensing monitoring and forecasting models were improved. Combining with latitude information, the vegetation index was used to estimate agronomy parameters which were related with winter wheat quality in the early stages for forecasting the quality trend. A combination of rainfall in May, temperature in May, illumination at later May, the soil available nitrogen content and other environmental factors established the quality monitoring model. Compared with a simple quality-vegetation index, the remote sensing monitoring and forecasting model used in this system get greatly improved accuracy. Winter wheat quality was monitored and forecasted based on the above models, and this system was completed based on WebGIS technology. Finally, in 2010 the operation process of winter wheat quality monitoring system was presented in Beijing, the monitoring and forecasting results was outputted as thematic maps

  4. Factors predicting team climate, and its relationship with quality of care in general practice

    OpenAIRE

    Goh, Teik T; Eccles, Martin P; Steen, Nick

    2009-01-01

    Abstract Background Quality of care in general practice may be affected by the team climate perceived by its health and non-health professionals. Better team working is thought to lead to higher effectiveness and quality of care. However, there is limited evidence available on what affects team functioning and its relationship with quality of care in general practice. This study aimed to explore individual and practice factors that were associated with team climate, and to explore the relatio...

  5. Nutrition myths - the factor influencing the quality of children's diets

    Directory of Open Access Journals (Sweden)

    Slávka Mrosková

    2016-03-01

    Full Text Available Aim: To analyse the influence of parents' belief in nutrition myths on the frequency of their serving certain foods to their children. Design: Cross-sectional study. Methods: Survey carried out with 297 respondents - parents of children aged 5-18 years. The data collection took place between September 2013 and December 2014. The questionnaire focussed on 14 nutrition myths related to selected foods (milk, dairy products, meat, offal, fruit, vegetables, eggs, fish, legumes, soya, and flour dishes. At the same time, the parents reported the frequency of their serving the monitored foods to their children. In the statistical analysis, Spearman's rank correlation coefficient was used. Results: For nine nutrition myths we found significant negative coefficients between a certain nutrition myth and the frequency of the serving of the food. The nutrition myths related to the consumption of fish (r = -0.328, eggs (r = -0.203, soya (r = -0.301; -0.290, offal (r = -0.155, meat (r = -0.128, milk (r = -0.272; -0.254, and fruit/vegetables (r = -0.104. Conclusion: The belief in nutrition myths appears to be a determinant modifying parental behaviour and subsequently the quality of children's diets.

  6. Factors Associated with the Utilization and Quality of Prenatal Care in Western Rural Regions of China

    Science.gov (United States)

    Dongxu, Wang; Yuhui, Shi; Stewart, Donald; Chun, Chang; Chaoyang, Li

    2012-01-01

    Purpose: The paper seeks to identify key features of prenatal care utilization and quality in western regions of China and to determine the factors affecting the quality of prenatal care. Design/methodology/approach: A descriptive, cross-sectional study was conducted. The instrument for the study was a 10-stem respondent-administered, structured…

  7. Change in Quality of Life after Rehabilitation: Prognostic Factors for Visually Impaired Adults

    Science.gov (United States)

    Langelaan, Maaike; de Boer, Michiel R.; van Nispen, Ruth M. A.; Wouters, Bill; Moll, Annette C.; van Rens, Ger H. M. B.

    2009-01-01

    The overall aim of rehabilitation for visually impaired adults is to improve the quality of life and (societal) participation. The objectives of this study were to obtain the short-term and long-term outcome of a comprehensive rehabilitation programme on quality of life for visually impaired adults, and prognostic baseline factors responsible for…

  8. Factors associated with poor sleep quality in patients with multiple sclerosis differ by disease duration

    NARCIS (Netherlands)

    Vitkova, Marianna; Gdovinova, Zuzana; Rosenberger, Jaroslav; Szilasiova, Jarmila; Nagyova, Iveta; Mikula, Pavol; Krokavcova, Martina; Groothoff, Johan W.; van Dijk, Jitse P.

    2014-01-01

    Background: Sleep disturbance is a common symptom of multiple sclerosis (MS) and knowledge about factors that contribute to poor sleep quality is scarce. Objective: The aim was to explore the differences in the prevalence and determinants of poor sleep quality in a sample of patients with MS with

  9. Bloch-Wave Engineered Submicron Diameter Micropillars with Quality Factors Exceeding 10,000

    DEFF Research Database (Denmark)

    Hofling, S.; Lermer, M.; Gregersen, Niels

    2011-01-01

    Adiabatic design submicron diameter quantum-dot micropillars have been designed and implemented for cavity quantum electrodynamics experiments. Ultra-high experimental quality factors (>10,000) are obtained for submicron diameters and strong light-matter interaction is observed.......Adiabatic design submicron diameter quantum-dot micropillars have been designed and implemented for cavity quantum electrodynamics experiments. Ultra-high experimental quality factors (>10,000) are obtained for submicron diameters and strong light-matter interaction is observed....

  10. Factors influencing the perceived quality of clinical supervision of occupational therapists in a large Australian state.

    Science.gov (United States)

    Martin, Priya; Kumar, Saravana; Lizarondo, Lucylynn; Tyack, Zephanie

    2016-10-01

    Clinical supervision is important for effective health service delivery, professional development and practice. Despite its importance there is a lack of evidence regarding the factors that improve its quality. This study aimed to investigate the factors that influence the quality of clinical supervision of occupational therapists employed in a large public sector health service covering mental health, paediatrics, adult physical and other practice areas. A mixed method, sequential explanatory study design was used consisting of two phases. This article reports the quantitative phase (Phase One) which involved administration of the Manchester Clinical Supervision Scale (MCSS-26) to 207 occupational therapists. Frequency of supervision sessions, choice of supervisor and the type of supervision were found to be the predictor variables with a positive and significant influence on the quality of clinical supervision. Factors such as age, length of supervision and the area of practice were found to be the predictor variables with a negative and significant influence on the quality of clinical supervision. Factors that influence the perceived quality of clinical supervision among occupational therapists have been identified. High quality clinical supervision is an important component of clinical governance and has been shown to be beneficial to practitioners, patients and the organisation. Information on factors that make clinical supervision effective identified in this study can be added to existing supervision training and practices to improve the quality of clinical supervision. © 2016 Occupational Therapy Australia.

  11. Quality of life and its related factors in infertile couples.

    Science.gov (United States)

    Keramat, Afsaneh; Masoomi, Seyyedeh Zahra; Mousavi, Seyed Abbas; Poorolajal, Jalal; Shobeiri, Fatemeh; Hazavhei, Seyyed Mohammad Mehdi

    2014-01-01

    Health related quality of life (QoL) has now been considered as a main tool for outcome measurement in infertility. The present study aimed to determine the association between general and specified QoL with different psychological aspects of self-esteem, social support, sexual satisfaction, and marital satisfaction in a sample of Iranian infertile couples. This cross-sectional study was conducted on 385 infertile couples referred to the Fatemieh Hospital in Hamadan City, western Iran in 2012.To measure the self-esteem, the Iseng test was used. The social support scaling developed by Cassidy and Long was used for assessment of social support. The sexual satisfaction was also assessed by the Lindaberg questionnaire. For assessing the general QoL state, the WHO-QoL-BREF and FertiQoL tools were employed. Self-esteem scores were lower in the couples with longer infertility duration. The social support mean score was lower in low income couples. Those with higher educational level, shorter infertility duration, and higher income were more satisfied from their marital relationships. Besides, we revealed that the previous failed efforts for treatment of infertility were adversely associated with the lower social support and sexual satisfaction. The higher educational level, higher monthly income, living in urban area, shorter duration of marriage and infertility, and male gender were associated with better. QoL status in the most components.Associations between QoL and self-esteem, social support, sexual satisfaction, and marital satisfaction were significant (Pself-esteem, social support, sexual satisfaction, and marital satisfaction.

  12. Identifying items to assess methodological quality in physical therapy trials: a factor analysis.

    Science.gov (United States)

    Armijo-Olivo, Susan; Cummings, Greta G; Fuentes, Jorge; Saltaji, Humam; Ha, Christine; Chisholm, Annabritt; Pasichnyk, Dion; Rogers, Todd

    2014-09-01

    Numerous tools and individual items have been proposed to assess the methodological quality of randomized controlled trials (RCTs). The frequency of use of these items varies according to health area, which suggests a lack of agreement regarding their relevance to trial quality or risk of bias. The objectives of this study were: (1) to identify the underlying component structure of items and (2) to determine relevant items to evaluate the quality and risk of bias of trials in physical therapy by using an exploratory factor analysis (EFA). A methodological research design was used, and an EFA was performed. Randomized controlled trials used for this study were randomly selected from searches of the Cochrane Database of Systematic Reviews. Two reviewers used 45 items gathered from 7 different quality tools to assess the methodological quality of the RCTs. An exploratory factor analysis was conducted using the principal axis factoring (PAF) method followed by varimax rotation. Principal axis factoring identified 34 items loaded on 9 common factors: (1) selection bias; (2) performance and detection bias; (3) eligibility, intervention details, and description of outcome measures; (4) psychometric properties of the main outcome; (5) contamination and adherence to treatment; (6) attrition bias; (7) data analysis; (8) sample size; and (9) control and placebo adequacy. Because of the exploratory nature of the results, a confirmatory factor analysis is needed to validate this model. To the authors' knowledge, this is the first factor analysis to explore the underlying component items used to evaluate the methodological quality or risk of bias of RCTs in physical therapy. The items and factors represent a starting point for evaluating the methodological quality and risk of bias in physical therapy trials. Empirical evidence of the association among these items with treatment effects and a confirmatory factor analysis of these results are needed to validate these items.

  13. Factors Affecting Quality of Laboratory Services in Public and Private Health Facilities in Addis Ababa, Ethiopia

    Science.gov (United States)

    Taye, Binyam; Belay, Getachew; Ashenafi, Aytenew; Girma, Veronica

    2017-01-01

    Background Quality laboratory service is an essential component of health care system but in Sub-Saharan Africa such as Ethiopia, laboratories quality system remains weak due to several factors and it needs more attention to strengthen its capacity and quality system. Methodology A cross sectional study was conducted using a questionnaire to assess factors affecting the quality of laboratory service at private and public health institutions in Addis Ababa. Results A total of 213 laboratory professionals participated in the study and 131 (61.5%) participants had bachelor degree. Majority, 133 (62.4%), of the professionals did not attend any work related training. Seventy five (35.2%) respondents believed that their laboratories did not provide quality laboratory services and the major reported factors affecting provision of quality services were shortage of resources (64.3%), poor management support (57.3%), poor equipment quality (53.4%), high workload (41.1%), lack of equipment calibration (38.3%) and lack of knowledge (23.3%). Moreover logistic regression analysis showed that provision of quality laboratory service was significantly associated with result verification (AOR=9.21, 95% CI=2.26, 37.48), internal quality control (AOR= 6.11, 95% CI=2.11, 17.70), turnaround time (AOR=5.11, 95% CI=1.94, 13.46), shortage of equipment (AOR=7.76, 95% CI=2.55, 23.66), communication with clinicians (AOR=3.24, 95% CI=1.25, 8.41) and lack of job description (AOR=3.67, 95% CI=1.319, 10.22). Conclusion In conclusion, the major factors that affecting the quality of laboratory service were associated with poor human resource management, poor resources provision, poor management commitment, ineffective communication system and lack of well-established quality management system. PMID:29075171

  14. Factors Affecting Quality of Laboratory Services in Public and Private Health Facilities in Addis Ababa, Ethiopia.

    Science.gov (United States)

    Mesfin, Eyob Abera; Taye, Binyam; Belay, Getachew; Ashenafi, Aytenew; Girma, Veronica

    2017-10-01

    Quality laboratory service is an essential component of health care system but in Sub-Saharan Africa such as Ethiopia, laboratories quality system remains weak due to several factors and it needs more attention to strengthen its capacity and quality system. A cross sectional study was conducted using a questionnaire to assess factors affecting the quality of laboratory service at private and public health institutions in Addis Ababa. A total of 213 laboratory professionals participated in the study and 131 (61.5%) participants had bachelor degree. Majority, 133 (62.4%), of the professionals did not attend any work related training. Seventy five (35.2%) respondents believed that their laboratories did not provide quality laboratory services and the major reported factors affecting provision of quality services were shortage of resources (64.3%), poor management support (57.3%), poor equipment quality (53.4%), high workload (41.1%), lack of equipment calibration (38.3%) and lack of knowledge (23.3%). Moreover logistic regression analysis showed that provision of quality laboratory service was significantly associated with result verification (AOR=9.21, 95% CI=2.26, 37.48), internal quality control (AOR= 6.11, 95% CI=2.11, 17.70), turnaround time (AOR=5.11, 95% CI=1.94, 13.46), shortage of equipment (AOR=7.76, 95% CI=2.55, 23.66), communication with clinicians (AOR=3.24, 95% CI=1.25, 8.41) and lack of job description (AOR=3.67, 95% CI=1.319, 10.22). In conclusion, the major factors that affecting the quality of laboratory service were associated with poor human resource management, poor resources provision, poor management commitment, ineffective communication system and lack of well-established quality management system.

  15. Factors controlling air quality in different European subway systems.

    Science.gov (United States)

    Martins, Vânia; Moreno, Teresa; Mendes, Luís; Eleftheriadis, Konstantinos; Diapouli, Evangelia; Alves, Célia A; Duarte, Márcio; de Miguel, Eladio; Capdevila, Marta; Querol, Xavier; Minguillón, María Cruz

    2016-04-01

    Sampling campaigns using the same equipment and methodology were conducted to assess and compare the air quality at three South European subway systems (Barcelona, Athens and Oporto), focusing on concentrations and chemical composition of PM2.5 on subway platforms, as well as PM2.5 concentrations inside trains. Experimental results showed that the mean PM2.5 concentrations widely varied among the European subway systems, and even among different platforms within the same underground system, which might be associated to distinct station and tunnel designs and ventilation systems. In all cases PM2.5 concentrations on the platforms were higher than those in the urban ambient air, evidencing that there is generation of PM2.5 associated with the subway systems operation. Subway PM2.5 consisted of elemental iron, total carbon, crustal matter, secondary inorganic compounds, insoluble sulphate, halite and trace elements. Of all metals, Fe was the most abundant, accounting for 29-43% of the total PM2.5 mass (41-61% if Fe2O3 is considered), indicating the existence of an Fe source in the subway system, which could have its origin in mechanical friction and wear processes between rails, wheels and brakes. The trace elements with the highest enrichment in the subway PM2.5 were Ba, Cu, Mn, Zn, Cr, Sb, Sr, Ni, Sn, Co, Zr and Mo. Similar PM2.5 diurnal trends were observed on platforms from different subway systems, with higher concentrations during subway operating hours than during the transport service interruption, and lower levels on weekends than on weekdays. PM2.5 concentrations depended largely on the operation and frequency of the trains and the ventilation system, and were lower inside the trains, when air conditioning system was operating properly, than on the platforms. However, the PM2.5 concentrations increased considerably when the train windows were open. The PM2.5 levels inside the trains decreased with the trains passage in aboveground sections. Copyright © 2015

  16. Factors of Quality Improvement of the Foreign Language Teaching in Technical University

    Directory of Open Access Journals (Sweden)

    Ira R. Agasieva

    2017-03-01

    Full Text Available In the article the problem of quality of teaching and knowledge of the English language has been considered. The factors that influence the improvement of the quality of teaching and knowledge of the English language in a technical college, the use of various methods of enhancing the quality of teaching and knowledge of the English language has been analyzed. It has been distinguished the necessity of taking into account the factors such as emotional maturity of the student, the desire for success, student cognitive style, its consistency and independence.

  17. Spacetime averaging of exotic singularity universes

    International Nuclear Information System (INIS)

    Dabrowski, Mariusz P.

    2011-01-01

    Taking a spacetime average as a measure of the strength of singularities we show that big-rips (type I) are stronger than big-bangs. The former have infinite spacetime averages while the latter have them equal to zero. The sudden future singularities (type II) and w-singularities (type V) have finite spacetime averages. The finite scale factor (type III) singularities for some values of the parameters may have an infinite average and in that sense they may be considered stronger than big-bangs.

  18. Temporal and spatial distribution characteristics and influencing factors of air quality index in Xuchang

    Science.gov (United States)

    Wang, Zhenghua; Tian, Zhihui

    2018-01-01

    In recent years, the problem of air pollution becomes more and more serious. Based on the geographic and seasonal climatic characteristics of Xuchang City, this paper studies the temporal and spatial distribution characteristics of air quality index. The results show that: from the time point of view, air quality index shows seasonal difference. Air quality index is highest in winter and is lowest in summer. From the space point of view, there are differences between the north and the south to a certain extent. Changge City, Yuzhou city and central Xuchang county is higher than the southeast of Xiangcheng county and Yanling county. The spatial and temporal variation characteristics of air quality index in Xuchang are influenced by natural factors and human activities, and the economic development and population are the important factors affecting the urban air quality.

  19. Influence of stress factors and socio-demographic characteristics on the sleep quality of nursing students

    Directory of Open Access Journals (Sweden)

    Sonia Betzabeth Ticona Benavente

    2014-06-01

    Full Text Available Objective:To analyze the influence of stress factors and socio-demographic characteristics on the sleep quality of nursing students. Method: An analytical cross-sectional and quantitative study, conducted with 151 nursing students in São Paulo between March and April of 2012. A form for socio-demographic characteristics, the Instrument to Evaluate Stress in Nursing Students and the Pittsburgh Sleep Index were applied. Results: High levels of stress was predominant for Time Management (27.8% and Professional Training (30.5% and low sleep quality (78.8%. The Professional Communication, Professional Training and Theoretical Activity are positively correlated to sleep quality. Work activity, academic year and time for daily studies contributed to a low quality of sleep. Conclusion: Few stress factors from the academic environment and some socio-demographic characteristics contributed to the reduction of sleep quality in students.

  20. [Influence of stress factors and socio-demographic characteristics on the sleep quality of nursing students].

    Science.gov (United States)

    Benavente, Sonia Betzabeth Ticona; Silva, Rodrigo Marques da; Higashi, Aline Baraldi; Guido, Laura de Azevedo; Costa, Ana Lucia Siqueira

    2014-06-01

    To analyze the influence of stress factors and socio-demographic characteristics on the sleep quality of nursing students. An analytical cross-sectional and quantitative study, conducted with 151 nursing students in São Paulo between March and April of 2012. A form for socio-demographic characteristics, the Instrument to Evaluate Stress in Nursing Students and the Pittsburgh Sleep Index were applied. High levels of stress was predominant for Time Management (27.8%) and Professional Training (30.5%) and low sleep quality (78.8%). The Professional Communication, Professional Training and Theoretical Activity are positively correlated to sleep quality. Work activity, academic year and time for daily studies contributed to a low quality of sleep. Few stress factors from the academic environment and some socio-demographic characteristics contributed to the reduction of sleep quality in students.

  1. Nanotube mechanical resonators with quality factors of up to 5 million

    Science.gov (United States)

    Moser, J.; Eichler, A.; Güttinger, J.; Dykman, M. I.; Bachtold, A.

    2014-12-01

    Carbon nanotube mechanical resonators have attracted considerable interest because of their small mass, the high quality of their surfaces, and the pristine electronic states they host. However, their small dimensions result in fragile vibrational states that are difficult to measure. Here, we observe quality factors Q as high as 5 × 106 in ultra-clean nanotube resonators at a cryostat temperature of 30 mK, where we define Q as the ratio of the resonant frequency over the linewidth. Measuring such high quality factors requires the use of an ultra-low-noise method to rapidly detect minuscule vibrations, as well as careful reduction of the noise of the electrostatic environment. We observe that the measured quality factors fluctuate because of fluctuations of the resonant frequency. We measure record-high quality factors, which are comparable to the highest Q values reported in mechanical resonators of much larger size, a remarkable result considering that reducing the size of resonators is usually concomitant with decreasing quality factors. The combination of ultra-low mass and very large Q offers new opportunities for ultra-sensitive detection schemes and quantum optomechanical experiments.

  2. Not So Fast: Inflation in Impact Factors Contributes to Apparent Improvements in Journal Quality

    Science.gov (United States)

    Neff, Bryan D.; Olden, Julian D.

    2010-01-01

    The Institute for Scientific Information (ISI) impact factor has become an important standard for assessing journal quality. Here we propose that impact factors may be subject to inflation analogous to changes in monetary prices in economics. The possibility of inflation came to light as a result of the observation that papers published today tend…

  3. Factors Affecting Perceived Learning, Satisfaction, and Quality in the Online MBA: A Structural Equation Modeling Approach

    Science.gov (United States)

    Sebastianelli, Rose; Swift, Caroline; Tamimi, Nabil

    2015-01-01

    The authors examined how six factors related to content and interaction affect students' perceptions of learning, satisfaction, and quality in online master of business administration (MBA) courses. They developed three scale items to measure each factor. Using survey data from MBA students at a private university, the authors estimated structural…

  4. The comparison of dementia patient's quality of life and influencing factors in two cities.

    Science.gov (United States)

    Li, Xiao-Jing; Suishu, Chizuko; Hattori, Sonomi; Liang, Hu-Die; Gao, Hui; Feng, Chen-Qiu; Lou, Feng-Lan

    2013-08-01

    To determine the current status of dementia patient's quality of life and compare influencing factors in China and Japan to inform nursing care and potentially improve the patient's quality of life. The prevalence of dementia is increasing related to lack of a cure, thus prompting some researchers and clinicians to focus on patient's quality of life. A cross-sectional study. A convenience sample of 200 mild-to-moderate dementia patients was obtained in Jinan city and 205 ones in Wakayama city. Then, we measured patient's quality of life and analysed the relation between general demographic information, cognitive function, activities of living, behavioural and psychological symptoms, and the patient's quality of life. The total score of Dementia Quality of Life in Jinan city was 89·82 ± 15·11; multiple linear regression showed that the influencing factors of quality of life were marital, economics, characteristics, activities of living, hypertension and irritability. And the total score in Wakayama city was 118·30 ± 14·56; the influencing factors were education, body mass index, activities of living and depression. The total score of Dementia Quality of Life in Jinan city was significantly lower than Wakayama city. The same influencing factor between these two cities was activities of living. Nurses could implement interventions to focus on many of the patient's influencing factors, so that to improve their mental and physical health, which may slow the disease process and further improve the patient's quality of life. In addition, Chinese government could learn some experience from Japanese government, such as perfect the system of nursing insurance for elderly and introduce professional geriatric nursing talents to provide better service for the elderly. © 2012 Blackwell Publishing Ltd.

  5. Factors affecting quality of life in Hungarian adults with epilepsy: A comparison of four psychiatric instruments.

    Science.gov (United States)

    Kováts, Daniella; Császár, Noémi; Haller, József; Juhos, Vera; Sallay, Viola; Békés, Judit; Kelemen, Anna; Fabó, Dániel; Rásonyi, György; Folyovich, András; Kurimay, Tamás

    2017-09-01

    We investigated the impact of 19 factors on life quality in Hungarian patients with epilepsy. Wellbeing was evaluated by several inventories to investigate the impact of factors in more detail. A cross-sectional study was performed in 170 patients. Wellbeing was evaluated with the WHO-5 Well-being Index (WHOQOL-5), Diener Satisfaction with Life Scale (SwLS), and the Quality of Life in Epilepsy-31 Questionnaire (Qolie-31). We investigated their association with demographic characteristics, general health status, epilepsy, and its treatment. The impact of these factors on illness perception (Illness Perception Questionnaire, IPQ) was also studied. The four measures correlated highly significantly. In addition, the predictive power of factors was comparable with the four inventories as evaluated by Multiple Regression. Factors explained 52%, 41%, 63% and 46% in the variance of WHOQOL-5, SwLS, Qolie-31, and IPQ scores, respectively. However, associations with particular factors were instrument-specific. The WHOQOL-5 was associated with factors indicative of general health. SwLS scores were associated with health-related and several demographic factors. Neither showed associations with epilepsy-related factors. All four categories of factors were associated with Qolie-31 and IPQ scores. Factors had an additive impact on IPQ, but not on Qolie-31. Our findings reveal interactions between the method of life quality assessment and the factors that are identified as influencing life quality. This appears to be the first study that analyses the factors that influence illness perception in epilepsy patients, and suggests that the IPQ may become a valuable tool in epilepsy research. Copyright © 2017 Elsevier Inc. All rights reserved.

  6. Confirmatory factor analysis of the quality of life scale and new proposed factor structure for the quality of life scale-revised.

    Science.gov (United States)

    Mueser, Kim T; Kim, Min; Addington, Jean; McGurk, Susan R; Pratt, Sarah I; Addington, Donald E

    2017-03-01

    The Quality of Life Scale (QLS) is a frequently used semistructured interview for the assessment of functional outcomes in schizophrenia. Despite the use of the QLS for over 30years, the original 4-factor structure of the instrument (Interpersonal Relations, Instrumental Role, Intrapsychic Foundations, and Common Objects and Activities) has not been rigorously examined. Exploratory factor analyses (EFAs) and confirmatory factor analyses (CFAs) were used to evaluate the factor structure of the QLS in two independent datasets, including a mixed diagnostic sample of multi-episode participants (N=247), and a sample of individuals with a first episode of psychosis (N=337). A CFA with the first dataset indicated a poor fit for the 4-factor model of the QLS. Subsequent EFAs on this dataset led to a more promising 3-factor solution including 16/21 of the QLS items, which were similar to the first 3 of 4 factors originally proposed for the QLS. CFAs on the same dataset indicated that the 3-factor model for the QLS-Revised (QLS-R) fit the data well. This factor structure was evaluated with the second dataset using CFA and was also found to be fit the data well. The results support the robustness of the 3-factor model of the QLS-R in schizophrenia and mixed diagnostic samples. Future research should evaluate the validity of the 3-factor model of the QLS-R, and consider the merits of changing the name of the Intrapsychic Foundations factor to Motivation. Copyright © 2016 Elsevier B.V. All rights reserved.

  7. Factors affecting the quality of life in childhood epilepsy in China.

    Science.gov (United States)

    Yong, L; Chengye, J; Jiong, Q

    2006-03-01

    To explore the level of, and factors affecting the quality of life (QOL) in childhood epilepsy in China. At the Peking University First Hospital, we consecutively identified 418 parents whose children were with known epilepsy to complete a questionnaire, which included children's demographic characteristics, clinical message of epilepsy, QOL, familial message, parental symptoms of anxiety/depression. Significant (paffecting factors of children's quality of life included current educational degree, mental development, age at diagnosis, age at onset, seizure frequency, duration, AED number; parental significant (paffecting factors included anxiety, depression and health. On regression analysis, parental anxiety was the most important factor in explaining lower QOL in childhood epilepsy. AEDs, familial economic state, paternal career, seizure frequency were also significant factors. Parental anxiety outweighed the physical factors in determining QOL in childhood epilepsy. Recognition of this will be helpful for professionals to treat disease and improve the QOL of childhood epilepsy.

  8. Sleep Quality and Associated Factors in Older Turkish Adults With Hypertension: A Pilot Study.

    Science.gov (United States)

    Kara, Belgüzar; Tenekeci, Elif Gökçe

    2017-05-01

    The purpose of this study was to evaluate sleep quality and to explore its associations with participant characteristics, anemia, excessive daytime sleepiness, and physical activity in older Turkish adults with hypertension. This cross-sectional study included 128 adults aged 60 years or older with hypertension. Data were collected by using a personal information form, the Pittsburgh Sleep Quality Index, the Epworth Sleepiness Scale, and the International Physical Activity Questionnaire. Anemia was assessed by hemoglobin levels. Eighty-one patients (63.3%) reported poor sleep quality. Anemia was present in 35.2% of the patients (defined as hemoglobin sleep quality. Conclusion/Implication: The majority of the participants had poor sleep quality. Better understanding of risk factors associated with poor sleep quality may contribute to more effective interventions to improve health and well-being.

  9. Experimental RBE values of high LET radiations at low doses and the implications for quality factor assignment

    International Nuclear Information System (INIS)

    Sinclair, W.K.

    1985-01-01

    RBE determinations of special relevance to the quality factor assigned for radiation protection purposes are those relating to the effects of special importance at low doses, namely carcinogenesis and mutagenesis. Measurements of RBE that enable the maximum value of RBE, namely RBEsub(M), to be determined at low doses require data points as low as 0.1 Gy or even 0.01 Gy or high LET radiation. Corresponding data points as low as 0.5 Gy to 0.25 Gy or less of low LET radiation are also needed. Relatively few such measurements have been made, but many more are available now than formerly. A review of recent RBEs for tumour induction, life shortening, transformation, cytogenetics and genetic endpoints, which updated an earlier review, indicates a broad range of results. The principle findings are that X rays are more effective than hard γ rays at low doses by a factor of about 2, and that fission neutrons, alpha particles and heavy ions may be 30-50 times more effective, on the average, (some endpoints give higher, some lower values) than hard γ rays. The data would seem to indicate that in order to provide approximately equal protection against the risks at low doses from all radiations, adjustments upward in the quality factors for high LET radiations need to be considered. (author)

  10. Factors Affecting the Provision of Quality Service in Real Estate Agency in Lagos Metropolis, Nigeria

    OpenAIRE

    Funmilayo Moyinola Araloyin; OJO Olatoye

    2011-01-01

    Real estate firms attempting to increase and retain their customers need to know the factors contributing to customers¡¯ satisfaction and retention. This study investigate into real estate agency market with the purposes of identifying factors that affect quality in service provision and possible factors contributing to customers¡¯ satisfaction and retention in real estate agency. This study uses survey questionnaires to obtain information from real estate consumers. This sample size consiste...

  11. Correctional Facility Average Daily Population

    Data.gov (United States)

    Montgomery County of Maryland — This dataset contains Accumulated monthly with details from Pre-Trial Average daily caseload * Detention Services, Average daily population for MCCF, MCDC, PRRS and...

  12. Sleep quality and some factors affecting sleep quality in the students living in the residence hall of a university

    Directory of Open Access Journals (Sweden)

    Ozge Yavuz Sari

    2015-04-01

    Full Text Available AIM: Sleep disorders are remarkable public health problems as they adversely affect physical, mental and social health and may cause accidents and decline in academic performance and labor productivity. Aim of the study is assessing sleep quality and determining some factors affecting sleep quality in the students living in the residence hall of a university. METHOD: It is a cross sectional study conducted with 277 students, 180 of whom are female. Data were collected via a questionnaire including Pittsburgh Sleep Quality Index (PSQI, Epworth Sleepiness Scale (ESS and socio-demographic characteristics query. RESULTS: According to PSQI, 41.1% of students have bad sleep quality. Sleep quality of male students and students who are overweight/obese or living in more crowded rooms in the hall of residence is worse than other students and #8217;. Prevalence of bad sleep quality is higher in medication users, participants thinking that they have problems in sleeping or falling asleep and had stressful experience in the last month. The differences between groups were statistically significant. In logistic regression analyzes, using medication (OR=2.54, having problems in sleep (OR=12.75, having problems in falling asleep (OR=8.83 and bad experiences in the last month (OR=2.66 have effects on sleep quality. CONCLUSIONS: Interventions about sleep disorders are important due to their preventable characteristics. Developing healthy life habits, improving physical conditions and coping with stress will be effective on preventing and treating sleep disorders. [TAF Prev Med Bull 2015; 14(2.000: 93-100

  13. Factors Affecting Quality of Life and Fatigue in Gynaecologic Cancer Patients

    Directory of Open Access Journals (Sweden)

    Güngör İ

    2017-06-01

    Full Text Available Background: Cancer-related fatigue (CRF is the most commonly reported and most distressing symptom in cancer patients. Health-related quality of life (QOL is an important outcome in cancer management, the authors sought to better understand its determinants. Aim: This study aims to identify quality of life and fatigue levels and the affecting factors in gynaecologic cancer patients. Method: This descriptive and cross-sectional study was conducted with 154 volunteer women with gynaecologic cancer. The data were collected through the interview form, functional assessment of cancer therapy-general (FACT-G Quality of Life Scale, and Piper Fatigue Scale. Results: The mean score of total quality of life in gynaecologic cancer patients was low, 53.4 ± 15.4. Physical and emotional states were found to be the mostly affected states in the quality of life. According to the Piper Fatigue Scale, the total fatigue score was mild, 3.5 ± 2.4. Total fatigue scores were found to be high in metastatic cancers. Multivariate analyses indicate that the most important factor affecting the quality of life is economic condition, and the most important variables affecting fatigue are the level of activity and use of medicine. Conclusion: This study found that quality of life dimensions in women with gynaecologic cancer was affected by factors such as cancer type, time of diagnosis, and stage and spread of the cancer.

  14. Management of Highway Projects in Egypt through Identifying Factors Influencing Quality Performance

    Directory of Open Access Journals (Sweden)

    Ahmed Ebrahim Abu El-Maaty

    2016-01-01

    Full Text Available While project management success focuses upon the processes and the successful accomplishments of cost and time objectives, product success deals with the quality of the final product. Recently, quality of the constructed highway has been considered highly important reason for the pavement response and its design life. The main objective of this paper is to improve the management of highway projects in Egypt by determining the most important factors influencing the quality performance of this industry. In total, 39 factors that may influence the quality of highway projects have been defined through a detailed literature review. The factors are tabulated in a questionnaire form, which is sent out to 13 owners of divided highways, 27 owners of regional roads, and 15 consultants. The analysis of the respondents’ perspectives using fuzzy triangle approach shows that the most important factors affecting the quality are availability of experienced staff in the owner’s and contractor’s teams during the project execution; efficiency of the owner’s inspection team; clarity of responsibilities and roles for each owner, consultant, and contractor; pavement which is not designed according to the regional conditions (e.g., soil type, temperature, and traffic volume; and asphalt quality and type used in the construction process.

  15. Judging the quality of evidence in reviews of prognostic factor research: adapting the GRADE framework

    Science.gov (United States)

    2013-01-01

    Background Prognosis research aims to identify factors associated with the course of health conditions. It is often challenging to judge the overall quality of research evidence in systematic reviews about prognosis due to the nature of the primary studies. Standards aimed at improving the quality of primary studies on the prognosis of health conditions have been created, but these standards are often not adequately followed causing confusion about how to judge the evidence. Methods This article presents a proposed adaptation of Grading of Recommendations Assessment, Development and Evaluation (GRADE), which was developed to rate the quality of evidence in intervention research, to judge the quality of prognostic evidence. Results We propose modifications to the GRADE framework for use in prognosis research along with illustrative examples from an ongoing systematic review in the pediatric pain literature. We propose six factors that can decrease the quality of evidence (phase of investigation, study limitations, inconsistency, indirectness, imprecision, publication bias) and two factors that can increase it (moderate or large effect size, exposure-response gradient). Conclusions We describe criteria for evaluating the potential impact of each of these factors on the quality of evidence when conducting a review including a narrative synthesis or a meta-analysis. These recommendations require further investigation and testing. PMID:24007720

  16. Sleep quality in Chinese patients with rheumatoid arthritis: contributing factors and effects on health-related quality of life.

    Science.gov (United States)

    Guo, Genkai; Fu, Ting; Yin, Rulan; Zhang, Lijuan; Zhang, Qiuxiang; Xia, Yunfei; Li, Liren; Gu, Zhifeng

    2016-11-16

    Poor sleep quality is common in rheumatoid arthritis (RA) patients and may lead to disease aggravation and decreased health-related quality of life (HRQoL). The increasing prevalence of poor sleep in RA patients is associated with adverse demographic, clinical, and psychological characteristics. However, there are currently no known reported studies related to the effects of sleep quality on HRQoL in RA patients from China. This cross-sectional study aims to evaluate the contributors of poor sleep and the effects of sleep quality on HRQoL in Chinese RA patients. A self-report survey was administered to 131 RA patients and 104 healthy individuals using the Pittsburgh Sleep Quality Index (PSQI) for sleep quality. RA patients completed the Hospital Anxiety and Depression Scale for anxiety and depression, the 28-joint Disease Activity Score for disease activity, the 10 cm Visual Analog Scale for pain, the Health Assessment Questionnaire-Disability Index for functional capacity and the Short Form 36 health survey for HRQoL. Blood samples were taken to gain some biochemical indicators (e.g., erythrocyte sedimentation rate, C-reactive protein, rheumatoid factor, and anti-cyclic citrullinated peptide). Independent samples t-tests, Chi square analysis, logistic regression modeling and linear regression were used to analyze these data. Our results found that the prevalence of poor sleep (PSQI ≥ 5) was 78.6% and the mean global score of PSQI was 7.93 (SD 3.98) in patients, which were significantly higher than the controls (18.7% and 3.88 (SD 1.89), respectively). There were significant correlations among synthetic disease-modifying antirheumatic drugs, erythrocyte sedimentation rate, pain, disease activity, functional capacity, anxiety/depression and sleep quality in RA patients. Meanwhile, logistic regression models identified disease activity and depression as predictors of poor sleep quality. Poor RA sleepers had impaired HRQoL than good RA sleepers, and sleep

  17. Associations of Environmental Factors With Quality of Life in Older Adults.

    Science.gov (United States)

    Gobbens, Robbert J J; van Assen, Marcel A L M

    2018-01-18

    Environmental factors play an important role in the quality of life of older people who often have difficulty maintaining physical, psychological, and social functioning. In this study, we aimed at (a) developing a measurement instrument assessing the factors of older adults' perceptions of their environment, (b) examining the associations of these environmental factors with quality of life domains physical health, psychological, social relations, and environmental, controlling for background characteristics. Associations between environmental factors and quality of life domains were examined in a cross-sectional study using a sample of 1,031 Dutch people aged 65 years and older. Participants completed a Web-based questionnaire, the "Senioren Barometer." Forty-two questions on environmental factors were asked, and quality of life domains were assessed by the WHOQOL-BREF. Seven scales (comprising 3-9 items) of environment were constructed-housing, facilities, nuisance, residents, neighborhood, stench/noise, and traffic. All quality of life domains (physical, psychological, social, environmental) were associated with at least one environmental scale. Housing, residents, and nuisance were associated with 4, 3, and 2 domains, respectively. Facilities, neighborhood, stench/noise, and traffic were associated only with quality of life environmental. This study showed that multiple environmental factors are associated with quality of life in older people. To support independent living in older people health and social care professionals and policymakers may need to carry out interventions, in particular focusing on housing, residents, and nuisance. © The Author 2017. Published by Oxford University Press on behalf of The Gerontological Society of America. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.

  18. Critical review of factors governing data quality of integrative samplers employed in environmental water monitoring.

    Science.gov (United States)

    Roll, Isaac B; Halden, Rolf U

    2016-05-01

    Integrative sampling enables the collection of analyte mass from environmental liquids over extended timeframes from hours to months. While the incentives to complement or replace conventional, time-discrete sampling have been widely discussed, the data quality implications of employing alternative, integrative methods have not yet been systematically studied. A critical analysis of contemporary literature reports showed the data quality of integrative samplers, whether active-advection or passive-diffusion, to be governed by uncertainty in both sampling rate and analyte recovery. Derivation of two lumped parameters, representing the coefficient of accumulation (α) of a contaminant from an environmental fluid and the coefficient of subsequent recovery (ρ) of its mass from the sampler, produced a conceptual framework for quantifying error sources in concentration data derived from accumulative samplers. Whereas the precision associated with recovery was found to be fairly consistent across eight passive-diffusion and active-advection devices (averaging 5-16% relative standard deviation, RSD), active-advection samplers effectively improve precision in sampling rate (analyte uptake), as determined for two active-advection devices (2-7% average RSD) and five passive devices (12-42% average RSD). In summary, an approach is presented whereby the data quality implications of integrative sampler design can be compared, which can inform the selection, optimization, and development of sampling systems to complement the state of the art. Copyright © 2016 Elsevier Ltd. All rights reserved.

  19. Factors responsible for poor sleep quality in patients with chronic obstructive pulmonary disease.

    Science.gov (United States)

    Chang, Chih-Hao; Chuang, Li-Pang; Lin, Shih-Wei; Lee, Chung-Shu; Tsai, Ying-Huang; Wei, Yu-Feng; Cheng, Shih-Lung; Hsu, Jeng-Yuan; Kuo, Ping-Hung; Yu, Chong-Jen; Chen, Ning-Hung

    2016-08-08

    Sleep disturbance is a common complaint in patients with chronic obstructive lung disease (COPD). However, the factors resulting in sleep disturbance remain unclear. This retrospective, observational, multicenter study aimed to identify the factors associated with sleep disturbance in patients with COPD. The study was a retrospective, observational, and multicenter research. Data including age, sex, body mass index, smoking status, COPD inhaler prescribed, clinical symptoms, pulmonary function tests, medical history of comorbidities, and questionnaires were collected. Parameters including demographics, symptoms, medication, severity, functional classification, and comorbidities were correlated with sleep quality scores. Among 377 patients with COPD, 200 (53 %) patients experienced poor sleep quality (Pittsburg Sleep Quality Index scores > 5). A significant difference in sleep quality, as measured by PSQI scores, was noted between groups based on the 2011 Global Initiatives for Chronic Obstructive Lung Disease (GOLD) classification system. The most common sleep disturbances included "getting up to use the bathroom" (70.3 %), "wake up at night or early morning" (40.3 %), and "cough and snore loudly at night" (15.9 %). The use of inhaled corticosteroids, the presence of wheezing, COPD Assessment Test (CAT) scores, and Modified Medical Research Council (mMRC) dyspnea scale scores positively correlated with poor sleep quality (odds ratio: 1.51, 1.66, 1.09, and 1.30, respectively). Upon multivariate analysis, the CAT score was an independent factor for poor sleep quality in these patients. With the exception of sleep problem items, based on the CAT questionnaire, phlegm was significantly higher in COPD patients with poor sleep quality. Poor sleep quality is common among patients with COPD and symptoms including wheeze, phlegm, and inhaled corticosteroid use may contribute to poor sleep quality. The CAT score is a good indicator of poor sleep quality in patients

  20. Identification and assessment of potential water quality impact factors for drinking-water reservoirs.

    Science.gov (United States)

    Gu, Qing; Deng, Jinsong; Wang, Ke; Lin, Yi; Li, Jun; Gan, Muye; Ma, Ligang; Hong, Yang

    2014-06-10

    Various reservoirs have been serving as the most important drinking water sources in Zhejiang Province, China, due to the uneven distribution of precipitation and severe river pollution. Unfortunately, rapid urbanization and industrialization have been continuously challenging the water quality of the drinking-water reservoirs. The identification and assessment of potential impacts is indispensable in water resource management and protection. This study investigates the drinking water reservoirs in Zhejiang Province to better understand the potential impact on water quality. Altogether seventy-three typical drinking reservoirs in Zhejiang Province encompassing various water storage levels were selected and evaluated. Using fifty-two reservoirs as training samples, the classification and regression tree (CART) method and sixteen comprehensive variables, including six sub-sets (land use, population, socio-economy, geographical features, inherent characteristics, and climate), were adopted to establish a decision-making model for identifying and assessing their potential impacts on drinking-water quality. The water quality class of the remaining twenty-one reservoirs was then predicted and tested based on the decision-making model, resulting in a water quality class attribution accuracy of 81.0%. Based on the decision rules and quantitative importance of the independent variables, industrial emissions was identified as the most important factor influencing the water quality of reservoirs; land use and human habitation also had a substantial impact on water quality. The results of this study provide insights into the factors impacting the water quality of reservoirs as well as basic information for protecting reservoir water resources.

  1. Psychosocial factors and health as determinants of quality of life in community-dwelling older adults.

    Science.gov (United States)

    Brett, Caroline E; Gow, Alan J; Corley, Janie; Pattie, Alison; Starr, John M; Deary, Ian J

    2012-04-01

    It is important to understand the determinants of differences in quality of life in old age and to include a wide range of possible predictors. The present study investigated the determinants of quality of life in two groups of older adults for whom there was an unusually informative set of possible predictor variables. Participants were members of the Lothian Birth Cohorts of 1921 (n = 550) or 1936 (n = 1,091). Four facets of quality of life (QoL) and general QoL were measured using the WHOQOL-BREF. Possible determinants included personality traits, measured with the International Personality Item Pool (IPIP) scales; childhood and old age general cognitive ability, measured with the Moray House Test; minor psychological symptoms, measured with the Hospital Anxiety and Depression Scale (HADS); physical health, assessed by grip strength and cardiovascular disease history; and sociodemographic factors, assessed by interview. Linear regression analyses revealed that HADS depression had the greatest influence on quality of life. Personality traits, most notably Emotional Stability, also predicted quality of life to varying degrees, along with factors reflecting current life circumstances. There were differences between the two cohorts in the variables which predicted quality of life. There were different, conceptually relevant, contributions to the different QoL facets. Personality traits and minor depressive symptoms have an important influence on self-reported quality of life in old age. Quality of life may be influenced more by current than past circumstances, and this relationship may change with age.

  2. Factor Analysis Affecting The Audit Quality Study On Inspectorate In Riau Province

    Directory of Open Access Journals (Sweden)

    Nur Azlina

    2017-07-01

    Full Text Available This study aims to determine 1 the influence of integrity on audit quality 2 the influence of objectivity on audit quality 3 the effect of work experience on audit quality 4 the influence of knowledge on financial management on audit quality and 5 Motivation to audit quality. The sample of this study is the auditor who works in inspectorate in Riau Province precisely in Inspectorate of Bengkalis Siak Pelalawan Kuantan Singingi and Pekanbaru City. Data were analyzed by using multiple regression method using SPSS version 21. The data used is primary data by using questionnaire. The analytical technique used to perform the hypothesis is random sampling. The results showed that integrity work experience knowledge of local financial management and motivation had no effect on audit quality while objectivity had an effect on audit quality. Adjusted R Square of 0.626. This shows that the quality of audit on Inspectorate in Riau Province can be influenced by factors studied by 62.6 and 37.4 influenced by factors not observed in this study.

  3. The difference between alternative averages

    Directory of Open Access Journals (Sweden)

    James Vaupel

    2012-09-01

    Full Text Available BACKGROUND Demographers have long been interested in how compositional change, e.g., change in age structure, affects population averages. OBJECTIVE We want to deepen understanding of how compositional change affects population averages. RESULTS The difference between two averages of a variable, calculated using alternative weighting functions, equals the covariance between the variable and the ratio of the weighting functions, divided by the average of the ratio. We compare weighted and unweighted averages and also provide examples of use of the relationship in analyses of fertility and mortality. COMMENTS Other uses of covariances in formal demography are worth exploring.

  4. Factors influencing nurse-assessed quality nursing care: A cross-sectional study in hospitals.

    Science.gov (United States)

    Liu, Ying; Aungsuroch, Yupin

    2018-04-01

    To propose a hypothesized theoretical model and apply it to examine the structural relationships among work environment, patient-to-nurse ratio, job satisfaction, burnout, intention to leave and quality nursing care. Improving quality nursing care is a first consideration in nursing management globally. A better understanding of factors influencing quality nursing care can help hospital administrators implement effective programmes to improve quality of services. Although certain bivariate correlations have been found between selected factors and quality nursing care in different study models, no studies have examined the relationships among work environment, patient-to-nurse ratio, job satisfaction, burnout, intention to leave and quality nursing care in a more comprehensive theoretical model. A cross-sectional survey. The questionnaires were collected from 510 Chinese nurses in four Chinese tertiary hospitals in January 2015. The validity and internal consistency reliability of research instruments were evaluated. Structural equation modelling was used to test a theoretical model. The findings revealed that the data supported the theoretical model. Work environment had a large total effect size on quality nursing care. Burnout largely and directly influenced quality nursing care, which was followed by work environment and patient-to-nurse ratio. Job satisfaction indirectly affected quality nursing care through burnout. This study shows how work environment past burnout and job satisfaction influences quality nursing care. Apart from nurses' work conditions of work environment and patient-to-nurse ratio, hospital administrators should pay more attention to nurse outcomes of job satisfaction and burnout when designing intervention programmes to improve quality nursing care. © 2017 John Wiley & Sons Ltd.

  5. Factors Affecting Customers’ Satisfaction and Perception: Case Study of Islamic Banks’Service Quality

    Directory of Open Access Journals (Sweden)

    Yayah Cheriyah

    2010-06-01

    Full Text Available This study aims to investigate the perception and expectation of the Islamic bank customers on the banks’ service quality, and how these factors affect their satisfaction and their intention to buy and to use the Islamic banks products and services.This finding implies that the Islamic banks should have pay more attention to their service quality since it would have a positif influence on customer satisfaction and purchase intention.

  6. FACTORS INFLUENCING THE QUALITY OF PROVIDED SERVICES IN THE VISION OF TRAVEL AGENTS IN SUCEAVA MUNICIPALITY

    Directory of Open Access Journals (Sweden)

    Cristian Valentin HAPENCIUC

    2015-07-01

    Full Text Available Taking into account its pragmatic meaning, the success of a travel agency frequently relies on the activity of travel agents. In the process of promoting and selling flat voyages, customer service can be directly influenced by the interaction of factors such as: offer accuracy, sales representatives quality, employee timeliness, politeness of the travel agent, maintaining eye contact etc., all of which are components of the offered product. Thereby, we conducted, within the period 5 - 15 March 2015, a research based on interviews with 26 travel agents from 20 different units, in order to determine their awareness about potential factors that may have an influence on the quality of offered services. By the instrumentality of a questionnaire, we attempted to assess the integrity and loyalty of employees, their attitude regarding the activities they carry, their dissatisfaction, negative and  positive factors influencing service quality, and their positioning to the organization and brand.

  7. Influence factors analysis of water environmental quality of main rivers in Tianjin

    Science.gov (United States)

    Li, Ran; Bao, Jingling; Zou, Di; Shi, Fang

    2018-01-01

    According to the evaluation results of the water environment quality of main rivers in Tianjin in 1986-2015, this paper analyzed the current situation of water environmental quality of main rivers in Tianjin retrospectively, established the index system and multiple factors analysis through selecting factors influencing the water environmental quality of main rivers from the economy, industry and nature aspects with the combination method of principal component analysis and linear regression. The results showed that water consumption, sewage discharge and water resources were the main factors influencing the pollution of main rivers. Therefore, optimizing the utilization of water resources, improving utilization efficiency and reducing effluent discharge are important measures to reduce the pollution of surface water environment.

  8. Structural validity of the Pittsburgh Sleep Quality Index in Chinese undergraduate students: A confirmatory factor analysis

    Directory of Open Access Journals (Sweden)

    Suran Guo

    2016-08-01

    Full Text Available The purpose of this study was to examine the structural validity of the Pittsburgh Sleep Quality Index (PSQI in Chinese undergraduate students. A cross-sectional questionnaire survey with 631 Chinese undergraduate students was conducted, and the questionnaire package included a measure of demographic characteristics, Pittsburgh Sleep Quality Index (PSQI, Chinese editions of Center for Epidemiologic Studies-Depression, State- Trait Anxiety Inventory, Rumination Response Scale, and Perceived Social Support Scale. Results showed that the item use of sleep medicine was not suitable for use with this population, that a two-factor model provided the best fit to the data as assessed through confirmatory factor analysis, and that other indices were consistently correlated with the sleep quality but not the sleep efficiency factor.

  9. Factor Analysis in Assessing the Research Methodology Quality of Systematic Reviews

    Directory of Open Access Journals (Sweden)

    Andrada Elena URDA-CÎMPEAN

    2011-12-01

    Full Text Available Introduction: Many high quality systematic reviews available from medical journals, data bases and other electronic sources differ in quality and provide different answers to the same question. The literature recommended the use of a checklist type approach, which exceeds many of the problems associated with measurements. Aim: This study proposes to identify in a checklist type approach the most commonly used factors (from a methodological point of view in assessing the quality of systematic reviews, and then mirror the actual stage of medical writing. We want to analyze the factors’ occurrence and / or their development in the text and in the abstract of systematic reviews published in 2011. Methods: The present study randomly selected only free full text systematic reviews published in 2011, systematic reviews found in Pubmed and in Cochrane Database. The most commonly used factors were identified in PRISMA statement and quality measurement tools. Results: The evaluated systematic reviews mentioned or developed several of the factors studied. Only 78% of the papers surveyed have used the correct IMRAD format and 59% of them have mentioned the sample size used. The correspondence between the content of the paper and its abstract is summarized in the proportion of 54.63% and 51.85% for the two sets of factors, and it can lead to scarce appreciation of the article provided that only abstracts are read. Conclusions: Researchers do not properly take into consideration scientific articles and assessment tools used for quality evaluation. They should place more value over methodological factors which help assess systematic review quality, while journals form the only party who can enforce quality standards in medical writing.

  10. Factors Affecting Parent's Perception on Air Quality-From the Individual to the Community Level.

    Science.gov (United States)

    Guo, Yulin; Liu, Fengfeng; Lu, Yuanan; Mao, Zongfu; Lu, Hanson; Wu, Yanyan; Chu, Yuanyuan; Yu, Lichen; Liu, Yisi; Ren, Meng; Li, Na; Chen, Xi; Xiang, Hao

    2016-05-12

    The perception of air quality significantly affects the acceptance of the public of the government's environmental policies. The aim of this research is to explore the relationship between the perception of the air quality of parents and scientific monitoring data and to analyze the factors that affect parents' perceptions. Scientific data of air quality were obtained from Wuhan's environmental condition reports. One thousand parents were investigated for their knowledge and perception of air quality. Scientific data show that the air quality of Wuhan follows an improving trend in general, while most participants believed that the air quality of Wuhan has deteriorated, which indicates a significant difference between public perception and reality. On the individual level, respondents with an age of 40 or above (40 or above: OR = 3.252; 95% CI: 1.170-9.040), a higher educational level (college and above: OR = 7.598; 95% CI: 2.244-25.732) or children with poor healthy conditions (poor: OR = 6.864; 95% CI: 2.212-21.302) have much more negative perception of air quality. On the community level, industrial facilities, vehicles and city construction have major effects on parents' perception of air quality. Our investigation provides baseline information for environmental policy researchers and makers regarding the public's perception and expectation of air quality and the benefits to the environmental policy completing and enforcing.

  11. Influence factors for decreased quality of life in thyroid-associated ophthalmo-pathy patients

    Directory of Open Access Journals (Sweden)

    Si-Si Zhong

    2017-02-01

    Full Text Available AIM: To study the quality of life in patients with thyroid associated ophthalmopathy in China, to analyze the factors related to the decline of quality of life and to provide evidence for the clinical diagnosis and treatment. METHODS: Totally 125 patients diagnosed with thyroid associated ophthalmopathy from January 2015 to January 2016 at Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine were included. Clinical data including gender, age, eyelid, conjunctival hyperemia and edema, lacrimal caruncle swelling, degree of proptosis, eyelid retraction volume, vision, diplopia were recorded. TAO-QOL questionnaire were investigated. The content was divided into two dimensions: visual function and appearance. Each dimension contains eight related questions. Final indicators for each dimension was the score. Independent t test, ANOVA and multiple regression analysis were performed using SPSS tactics 22.0 software. RESULTS: Eighty-eight valid questionnaires were included. The average score of visual function was 72.6±28.3 and that of appearance was 66.8±26.0; 28 cases(28/88were in active phase while 60 cases(60/88were in inactive phase. Visual function and appearance scores were 59.4±28.8 and 56.1±26.0 in active group; 78.8±26.1 and 71.8±24.6 in inactive group. Active group has decreased score for both visual function sore and appearance score(P=0.002 and P=0.008. The score of patients with mild TAO(26/88 was 86.2±17.1 and 82.1±17.8; 70.3±28.3 and 63.3±25.5 for moderate-severe patients(55/88, 41.1±34.6 and 37.6±22.7 for extremely severe patients(7/88. The score of both visual function and appearance in severe group were significantly lower than those in the moderate-severe group(P=0.006 and P=0.007.Compared to mild group, those of moderate-severe group were significantly lower(P=0.012, P=0.001.The visual function score of patients in constant diplopia group were significantly lower than the no diplopia group

  12. Medical-and-psychosocial factors influencing on the quality of life in patients with cervix cancer

    International Nuclear Information System (INIS)

    Chun, Mi Son; Kang, Seung Hee; Ryu, Hee Sug; Lee, Eun Hyun; Moon, Seong Mi

    2005-01-01

    Quality of life in patients with cancer may be influenced by various kinds of variables, such as personal, environmental, and medical factors. the purpose of this study was to identify the influencing factors on the quality of life in patients with cancer. One hundred and forty seven patients, who were taking medical therapy or following up after surgery for cervix cancer, participated in the present study. Quality of life, medical variables (cancer stage, type of treatment, follow-up status, and symptom distress), and psychosocial variables (mood disturbance, orientation to life, and social support) were measured. The obtained data were computed using multiple regression analyses. The medical-and-psychosocial variables explained 63.3% of the total variance in the quality of life (R 2 = 0.633, F = 16.969, ρ = .000). Cancer stage, symptom distress, mood disturbance, social support (family), and optimistic orientation to life were significant factors influencing on the quality of life in patients with cervix cancer. An integrative care program which includes medical-and-psychosocial characteristics of patients is essential to improve quality of life in patients with cervix cancer

  13. ASVCP quality assurance guidelines: control of general analytical factors in veterinary laboratories.

    Science.gov (United States)

    Flatland, Bente; Freeman, Kathy P; Friedrichs, Kristen R; Vap, Linda M; Getzy, Karen M; Evans, Ellen W; Harr, Kendal E

    2010-09-01

    Owing to lack of governmental regulation of veterinary laboratory performance, veterinarians ideally should demonstrate a commitment to self-monitoring and regulation of laboratory performance from within the profession. In response to member concerns about quality management in veterinary laboratories, the American Society for Veterinary Clinical Pathology (ASVCP) formed a Quality Assurance and Laboratory Standards (QAS) committee in 1996. This committee recently published updated and peer-reviewed Quality Assurance Guidelines on the ASVCP website. The Quality Assurance Guidelines are intended for use by veterinary diagnostic laboratories and veterinary research laboratories that are not covered by the US Food and Drug Administration Good Laboratory Practice standards (Code of Federal Regulations Title 21, Chapter 58). The guidelines have been divided into 3 reports on 1) general analytic factors for veterinary laboratory performance and comparisons, 2) hematology and hemostasis, and 3) clinical chemistry, endocrine assessment, and urinalysis. This report documents recommendations for control of general analytical factors within veterinary clinical laboratories and is based on section 2.1 (Analytical Factors Important In Veterinary Clinical Pathology, General) of the newly revised ASVCP QAS Guidelines. These guidelines are not intended to be all-inclusive; rather, they provide minimum guidelines for quality assurance and quality control for veterinary laboratory testing. It is hoped that these guidelines will provide a basis for laboratories to assess their current practices, determine areas for improvement, and guide continuing professional development and education efforts. ©2010 American Society for Veterinary Clinical Pathology.

  14. Poor sleep quality as a risk factor for lapse following a cannabis quit attempt.

    Science.gov (United States)

    Babson, Kimberly A; Boden, Matthew Tyler; Harris, Alex H; Stickle, Timothy R; Bonn-Miller, Marcel O

    2013-04-01

    Treatments for cannabis dependence are associated with high rates of lapse/relapse, underscoring the importance of identifying malleable risk factors that are associated with quit failure. Whereas research has demonstrated that poor sleep quality following cannabis discontinuation is related to subsequent use, there has yet to be an examination of whether poor sleep quality prior to a quit attempt results in a similar pattern of lapse. The present study addressed this gap by examining the role of pre-quit sleep quality on early lapse to cannabis use following a self-guided quit attempt, among 55 cannabis dependent military veterans. Results indicated that participants who experienced poor pre-quit sleep quality had greater risk for lapse within the first 2 days (out of 7) following their quit attempt. Findings are discussed in terms of improving treatments for individuals who report poor sleep quality prior to a cannabis quit attempt. Published by Elsevier Inc.

  15. [Influence of socioeconomic factors on the quality of life of elderly hypertensive individuals].

    Science.gov (United States)

    Andrade, João Marcus Oliveira; Rios, Lorena Roseli; Teixeira, Larissa Silva; Vieira, Fernanda Silva; Mendes, Danilo Cangussu; Vieira, Maria Aparecida; Silveira, Marise Fagundes

    2014-08-01

    This study sought to evaluate the association between socioeconomic variables and the quality of life of elderly hypertensive patients treated under the Family Health Program in the city of Montes Claros, Minas Gerais, Brazil. An analytical cross study was conducted in a representative sample of 294 elderly hypertensive patients. Data were collected using a questionnaire on socioeconomic characteristics and quality of life (MINICHAL). The data were analyzed using the nonparametric Mann-Whitney and Kuskall-Wallis tests. The results showed that marital status, religion and education affect the quality of life of elderly hypertensive patients in a statistically significant way. Elderly hypertensive patients who were single/divorced/widowed, evangelical, spiritualist and belonging to other religious bodies, illiterate achieved lower scores in terms of quality of life. For the remaining variables, there was no statistical association. The conclusion, drawn is that socioeconomic factors such as marital status, education and religion influence the quality of life of elderly hypertensive patients.

  16. Factors that affect quality of life from the perspective of people with dementia: a metasynthesis.

    Science.gov (United States)

    O'Rourke, Hannah M; Duggleby, Wendy; Fraser, Kimberly D; Jerke, Lauren

    2015-01-01

    To comprehensively and systematically identify, appraise, and synthesize qualitative research findings on factors that affect quality of life from the perspective of people with dementia. Systematic review and metasynthesis of primary qualitative studies in published and gray literature that aimed to identify factors that influence quality of life from the perspective of people with dementia. Expert-developed search strategies were applied in nine electronic databases. Reference lists of included articles and literature reviews identified during the search were reviewed. Structured inclusion criteria were applied to screen 5,625 titles and abstracts to identify 11 qualitative studies published from 1975 to April 2012. Two independent reviewers appraised study quality. Primary study recruitment sites included long-term care and community-based settings in the United Kingdom, the United States, Canada, the Netherlands, Ireland, Australia, and Japan. A combined sample of 345 people with mild, moderate, and severe dementia. The primary studies used interview and focus group methods. Findings from primary studies were synthesized using techniques of taxonomic analysis, constant comparison, and importing concepts. Four factors and the experience of connectedness or disconnectedness within each factor influenced quality of life according to people with dementia. These factors, and the terms that represent connectedness and disconnectedness, were relationships (together vs alone), agency in life today (purposeful vs aimless), wellness perspective (well vs ill), and sense of place (located vs unsettled). Happiness and sadness were key outcomes of good and poor quality of life, respectively. The four factors identified potentially modifiable areas to improve quality of life for people with dementia, even in the context of worsening cognitive function. © 2015, Copyright the Authors Journal compilation © 2015, The American Geriatrics Society.

  17. Effects of early life factors on the health and quality of life of older adults.

    Science.gov (United States)

    Yilmaz, Fikriye; N Tekin, Rukiye

    2018-01-01

    Few studies on the effects of early life factors on the health and quality of life of adults have been conducted in Turkey. We aimed to investigate the effects of early life factors on the health and quality of life of older adults. We administered a questionnaire to 350 adults, aged 50-89 years, living in Cankaya, Ankara. The questionnaire covered sociodemographic characteristics, early life characteristics, health status, and the World Health Organization Quality of Life-Ageing scale. Data were analyzed using χ 2 tests, independent samples t-tests, one-way anova, and binary logistic regression analysis. The analyses showed that the most important risk factors for chronic disease were being ≥65 years (odds ratio (OR) = 2.34), having a chronic health problem before 18 years of age (OR = 2.48), experiencing prolonged hospitalization or bed rest before 18 years of age (OR = 2.65), and experiencing parental unconcern during early life (OR = 2.13) (P quality of life (P life factors are among the important determinants of the health and quality of life of older adults in Turkey. © 2017 Japanese Psychogeriatric Society.

  18. Factors predicting quality of life in older people with diabetes in Thailand

    Directory of Open Access Journals (Sweden)

    Tassana Choowattanapakorn

    2016-12-01

    Full Text Available The study aimed to investigate factors affecting the quality of life of older persons with diabetes. Data were collected on 345 persons from 5 regional hospitals in Thailand. The instruments measured characteristic, quality of life, resilience and selfcare behavior. Participants exhibited low-level physical and mental health quality of life ( x =45.78, 47.60; SD=8.963, 8.93. Resilience and self-care behavior showed a moderate level ( x=121.89, 38.2; SD=21.084, 7.363. Stepwise regression indicated that resilience, self-care behavior, age, education and gender were predictive of physical health quality of life. Mental health quality of life was found to be predicted by resilience, self-care behavior and marital status. We determined that resilience, personal characteristics, self-care behavior and demographic factors were predictive of quality of life among older diabetics. Health care professionals need to be aware of individual differences among older diabetics towards promoting better quality of life.

  19. Factors affecting the quality of voice in the early glottic cancer treated with radiotherapy

    International Nuclear Information System (INIS)

    Agarwal, Jai Prakash; Baccher, Gurmit K.; Waghmare, Chaitali M.; Mallick, Indranil; Ghosh-Laskar, Sarbani; Budrukkar, Ashwini; Pai, Prathamesh; Chaturvedi, Pankaj; D'Cruz, Anil; Shrivastava, Shyam K.; Dinshaw, Ketayun A.

    2009-01-01

    Aims: To prospectively analyze the objective voice quality before and after radiotherapy (RT) for early glottic cancer and to evaluate the role of different factors that may affect it. Methods: Patients with T1-T2N0M0 glottic cancer underwent voice quality assessment before treatment and after radical RT. Post-RT voice quality was compared to the voice at diagnosis and the voice of healthy individuals used as controls. A comprehensive set of voice parameters were measured. The effects of age, smoking history, T stage, anterior commissure (AC) involvement, radiation dose, fractionation and volumes on pre-treatment and post-treatment voice quality were analyzed. Results: The voice quality data of 50 patients were analyzed. Following treatment, there was a significant improvement in the majority of measured parameters. However, perturbation and HNR remained inferior compared to controls. A history of smoking, AC involvement and larger RT volumes resulted in poorer voice parameters following RT. There was no significant impact of age alone. T2 tumors had an inferior voice quality before treatment, but did not remain inferior following RT. Hypofractionated RT did not show any negative impact. Conclusions: There is a considerable improvement of voice quality following RT. Several factors may have specific effects on pre-treatment and post-treatment voice

  20. Analysis of factors affecting the life quality of the patients with late stomach cancer.

    Science.gov (United States)

    Ma, Yan-Mei; Ba, Cai-Feng; Wang, Yu-Bin

    2014-05-01

    To provide a theoretical basis for the clinical care of patients with late stomach cancer, we investigated the life quality and analysed its related factor in the patients with late stomach cancer. Due to the lack of effective screening methods, stomach cancer usually has been in the advanced stage when patients are diagnosed. However, the treatment for late stomach cancer is a tough problem in today's medicine. Chemotherapy or radiotherapy brings patients physiological and psychological distress and heavy financial burden, affecting patients' therapeutic effects, prognosis and life quality. The patients with late stomach cancer were included, and then, questionnaires about the life quality were completed. Questionnaires including European Organisation for Research on Treatment of Cancer Quality of Life Questionnaire-Core 30, Social Support Rating Scale, Medical Coping Modes Questionnaire and Self-rating Anxiety Scale were completed by 173 patients with late stomach cancer who received treatment in our hospital between May 2010 and May 2011. Correlation analyses were performed. The overall score of the life quality of the patients with late stomach cancer was only 29·54 ± 12·21. The social support, medical coping modes, anxiety and patients' clinical data (except radiotherapy) markedly affected the overall life quality of the patients with late stomach cancer (p stomach cancer is poor and is associated with many factors. This study provides a theoretical basis for better nursing the patients with late stomach cancer and improving their life quality. © 2013 John Wiley & Sons Ltd.

  1. Analysis of factors affecting the quality of life of those suffering from Crohn's disease.

    Science.gov (United States)

    Chrobak-Bień, Joanna; Gawor, Anna; Paplaczyk, Małgorzata; Małecka-Panas, Ewa; Gąsiorowska, Anita

    2017-08-31

    Crohn's disease is an inflammatory bowel disease of unknown etiology. Its chronic nature, as well as symptoms of intestinal and overall significantly impedes the daily functioning of patients. Alternately occurring periods of exacerbation and remission are the cause of reduced quality of life of patients. Understanding the factors that caused the decrease in the quality of life, it allows us to understand the behavior and the situation of the patient and the ability to cope with stress caused by the disease. The aim of the study was to analyze the factors affecting the quality of life of people with Crohn's disease. The study group consisted of 50 people diagnosed with Crohn's disease. Respondents were treated at the Department of General Surgery and Colorectal Medical University of Lodz and Gastroenterological Clinic at the University Clinical Hospital No. 1 in Lodz. Quality of Life Survey was carried out by a diagnostic survey using a research tool SF-36v2 and surveys of its own design. Analysis of the results demonstrated that the quality of life of patients with Crohn's disease was reduced, especially during exacerbations. Evaluation of the quality of life of respondents in physical terms was slightly higher than in the mental aspect. Higher education subjects and the lack of need for surgical treatment significantly improves the quality of life. The occurrence of chronic disease reduces the quality of life of respondents. Elderly patients are better able to adapt to the difficult situation caused by the disease. The quality of life of women and men is at a similar level and patients in remission of the disease have a better quality of life of patients during exacerbations.

  2. Quality of carrots as affected by pre- and postharvest factors and processing

    DEFF Research Database (Denmark)

    Seljåsen, Randi; Kristensen, Hanne L; Lauridsen, Charlotte

    2013-01-01

    in content of terpenes, β-carotene, magnesium, iron and phenolics as well as a 1–4-fold difference in falcarindiol, bitter taste and sweet taste. Climate-related factors may cause a difference of up to 20-fold for terpenes, 82% for total sugars and 30–40% for β-carotene, sweet taste and bitter taste. Organic...... of furan accumulation. Sensory and chemical quality parameters of carrots are determined mainly by genetic and climate-related factors and to a minor extent by cultivation method. Retail temperature and storage atmosphere as well as heating procedure in processing have the highest impact in quality...

  3. Electrically Small Magnetic Dipole Antennas With Quality Factors Approaching the Chu Lower Bound

    DEFF Research Database (Denmark)

    Kim, Oleksiy S.; Breinbjerg, Olav; Yaghjian, Arthur D.

    2010-01-01

    that serves to reduce the internal stored energy. Closed-form expressions for the internal and external stored energies as well as for the quality factor Q are derived. The influence of the sphere radius and the material permeability and permittivity on the quality factor Q is determined and verified...... numerically. It is found that for a given antenna size and permittivity there is an optimum permeability that ensures the lowest possible Q, and this optimum permeability is inversely proportional to the square of the antenna electrical radius. When the relative permittivity is equal to 1, the optimum...

  4. Enhancement in Quality Factor of SRF Niobium Cavities by Material Diffusion

    Energy Technology Data Exchange (ETDEWEB)

    Dhakal, Pashupati [JLAB; Ciovati, Gianluigi [JLAB; Kneisel, Peter K. [JLAB; Myneni, Ganapati Rao [JLAB

    2015-06-01

    An increase in the quality factor of superconducting radiofrequency cavities is achieved by minimizing the surface resistance during processing steps. The surface resistance is the sum of temperature independent residual resistance and temperature/material dependent Bardeen-Cooper-Schrieffer (BCS) resistance. High temperature heat treatment usually reduces the impurities concentration from the bulk niobium, lowering the residual resistance. The BCS part can be reduced by selectively doping non-magnetic impurities. The increase in quality factor, termed as Q-rise, was observed in cavities when titanium or nitrogen thermally diffused in the inner cavity surface.

  5. The N-Pact Factor: Evaluating the Quality of Empirical Journals with Respect to Sample Size and Statistical Power

    Science.gov (United States)

    Fraley, R. Chris; Vazire, Simine

    2014-01-01

    The authors evaluate the quality of research reported in major journals in social-personality psychology by ranking those journals with respect to their N-pact Factors (NF)—the statistical power of the empirical studies they publish to detect typical effect sizes. Power is a particularly important attribute for evaluating research quality because, relative to studies that have low power, studies that have high power are more likely to (a) to provide accurate estimates of effects, (b) to produce literatures with low false positive rates, and (c) to lead to replicable findings. The authors show that the average sample size in social-personality research is 104 and that the power to detect the typical effect size in the field is approximately 50%. Moreover, they show that there is considerable variation among journals in sample sizes and power of the studies they publish, with some journals consistently publishing higher power studies than others. The authors hope that these rankings will be of use to authors who are choosing where to submit their best work, provide hiring and promotion committees with a superior way of quantifying journal quality, and encourage competition among journals to improve their NF rankings. PMID:25296159

  6. The N-pact factor: evaluating the quality of empirical journals with respect to sample size and statistical power.

    Science.gov (United States)

    Fraley, R Chris; Vazire, Simine

    2014-01-01

    The authors evaluate the quality of research reported in major journals in social-personality psychology by ranking those journals with respect to their N-pact Factors (NF)-the statistical power of the empirical studies they publish to detect typical effect sizes. Power is a particularly important attribute for evaluating research quality because, relative to studies that have low power, studies that have high power are more likely to (a) to provide accurate estimates of effects, (b) to produce literatures with low false positive rates, and (c) to lead to replicable findings. The authors show that the average sample size in social-personality research is 104 and that the power to detect the typical effect size in the field is approximately 50%. Moreover, they show that there is considerable variation among journals in sample sizes and power of the studies they publish, with some journals consistently publishing higher power studies than others. The authors hope that these rankings will be of use to authors who are choosing where to submit their best work, provide hiring and promotion committees with a superior way of quantifying journal quality, and encourage competition among journals to improve their NF rankings.

  7. Design Factors Influencing Quality of Building Projects in Nigeria: Consultants' Perception

    Directory of Open Access Journals (Sweden)

    Lukumon Oyedele

    2012-11-01

    Full Text Available Various factors identified from the literature that caninfluence quality of building projects in Nigeria have beenstudied by means of questionnaire survey sent to architects,engineers and quantity surveyors in the industry. From atotal response of 107 consultants, the importance of eachfactor was obtained via severity and frequency responsesof the factors. Data analysis includes comparisons ofranking among consultants using severity, frequency andimportance indexes, correlation analysis, and percentagerank agreement factor (PRAF to measure the agreement inthe importance ranking among the consultants.Correlation results between the professionals are architects/quantity surveyors (0.75, architects/engineers (0.21 ,and engineers/quantity surveyors (0.24. The percentagerank agreement factor (PRAF shows that the five mostimportant factors affecting quality are 'design changes'(78.9%; 'inadequate involvement of other professionalsduring the design stage' (78.9%; 'insufficient andunrealistic constraints of project cost' (71.1 %; 'poor levelof commitment to quality improvement among designprofessionals' (63.2%; and 'making design decisions oncost and not value of work' (55.3%. The results of this studywould provide feedback for the clients, project and qualitymangers and all the consultants in the industry, so thateffective management of quality can be ensured from theconceptual-design stage of the project.

  8. The Effective Spatial Qualities on Urban Tourism in Iran Focusing on Social Factors

    Directory of Open Access Journals (Sweden)

    Razavi Kambiz

    2017-01-01

    Full Text Available Considering the increasing challenges of the current cities, the urban tourism has been proposed as a solution for solving or minimizing different problems. Including economic, social and environmental aspects, this approach can lead to the fulfillment of sustainable development theory. Accordingly, there is no doubt about the successful results of the urban tourism development and all urban managers and authorities agree on this point. Meanwhile, what threatens the success of the urban tourism development plans is to ignore the all effective factors that make effect on the quality of travel experience. In their best, the cities are projected in their public spaces, and any tourist spent a considerable part of his travel in such spaces. Thus the quality of urban spaces is an important factor on the successfulness of urban tourism development plans and hence their environmental desirability must be studied and evaluated more precise under a comprehensive approach. The main objective of this research is to answer the main question of how the effective spatial qualities on tourism are explain with regard to the social factors. Since the man and his activities are the base of the urban studies, this article uses an urban-strategic approach based on the descriptive-analytical method using library resources to study the social factors that are effective on the qualities of urban spaces. The analytical model of the research will be presented based on the theoretical studies. The results show that some qualities such as flexibility, functional diversity, physical diversity, vegetation, safety, lightening, landscape attractiveness, identity, and memorability in relation to the urban space, and social and arbitrary activities based on Gehl theory can make effect as the complementary factors of the urban tourism attraction and make effect on social factors such as vitality, sense of security, arbitrary activity, social activity and tourists sense of peace

  9. Crew Factors in Flight Operations XII: A Survey of Sleep Quantity and Quality in On-Board Crew Rest Facilities

    Science.gov (United States)

    Rosekind, Mark R.; Gregory, Kevin B.; Co, Elizabeth L.; Miller, Donna L.; Dinges, David F.

    2000-01-01

    Many aircraft operated on long-haul commercial airline flights are equipped with on-board crew rest facilities, or bunks, to allow crewmembers to rest during the flight. The primary objectives of this study were to gather data on how the bunks were used, the quantity and quality of sleep obtained by flight crewmembers in the facilities, and the factors that affected their sleep. A retrospective survey comprising 54 questions of varied format addressed demographics, home sleep habits, and bunk sleep habits. Crewmembers from three airlines with long-haul fleets carrying augmented crews consisting of B747-100/200, B747-400, and MD-11 aircraft equipped with bunks returned a total of 1404 completed surveys (a 37% response rate). Crewmembers from the three carriers were comparable demographically, although one carrier had older, more experienced flight crewmembers. Each group, on average, rated themselves as "good" or "very good" sleepers at home, and all groups obtained about the same average amount of sleep each night. Most were able to sleep in the bunks, and about two thirds indicated that these rest opportunities benefited their subsequent flight deck alertness and performance. Comfort, environment, and physiology (e.g., being ready for sleep) were identified as factors that most promoted sleep. Factors cited as interfering with sleep included random noise, thoughts, heat, and the need to use the bathroom. These factors, in turn, suggest potential improvements to bunk facilities and their use. Ratings of the three aircraft types suggested differences among facilities. Bunks in the MD-11 were rated significantly better than either of the B747 types, and the B747-400 bunks received better ratings than did the older, B747-100/200 facilities.

  10. Quality of life, self-esteem and psychosocial factors in adolescents with acne vulgaris.

    Science.gov (United States)

    Vilar, Gustavo Nunes; Santos, Laís Araújo dos; Sobral Filho, Jader Freire

    2015-01-01

    Dermatological diseases, among which acne vulgaris, have psychological impact on the affected generating feelings of guilt, shame and social isolation. To compare quality of life, self-esteem and other psychosocial variables amongst adolescents with and without acne vulgaris, and between levels of severity. Cross-sectional observational study in a sample of 355 high school students from the city of João Pessoa. Data collection was performed with questionnaires and clinical-dermatological evaluation. The primary variables were the incidence of AV; quality of life, set by the Children's Dermatology Quality of Life Index and Dermatology Quality of Life Index; and self-esteem, measured by the Rosenberg Self-Esteem Scale. For calculation of statistical tests, we used the SPSS 20.0 software, considering p=0.05. The sample, with an average age of 16, showed 89.3% prevalence of acne vulgaris. The most prevalent psychosocial issue was "afraid that acne will never cease", present in 58% of affected youth. The median score of Quality of Life in Children's Dermatology Index was different amongst students with and without acne vulgaris (p=0.003), as well as the Quality of Life in Dermatology (p=0.038) scores, so that students with acne vulgaris have worse QoL. There was a correlation between the severity of acne vulgaris and worse quality of life. Self-esteem was not significantly associated with the occurrence or severity of acne vulgaris. acne vulgaris assumes significance in view of its high prevalence and the effect on quality of life of adolescents, more severe at the more pronounced stages of disease (pacne vulgaris should be valued in the management of patients with this condition.

  11. Factors predicting team climate, and its relationship with quality of care in general practice

    Directory of Open Access Journals (Sweden)

    Eccles Martin P

    2009-08-01

    Full Text Available Abstract Background Quality of care in general practice may be affected by the team climate perceived by its health and non-health professionals. Better team working is thought to lead to higher effectiveness and quality of care. However, there is limited evidence available on what affects team functioning and its relationship with quality of care in general practice. This study aimed to explore individual and practice factors that were associated with team climate, and to explore the relationship between team climate and quality of care. Methods Cross sectional survey of a convenience sample of 14 general practices and their staff in South Tyneside in the northeast of England. Team climate was measured using the short version of Team Climate Inventory (TCI questionnaire. Practice characteristics were collected during a structured interview with practice managers. Quality was measured using the practice Quality and Outcome Framework (QOF scores. Results General Practitioners (GP had a higher team climate scores compared to other professionals. Individual's gender and tenure, and number of GPs in the practice were significantly predictors of a higher team climate. There was no significant correlation between mean practice team climate scores (or subscales with QOF scores. Conclusion The absence of a relationship between a measure of team climate and quality of care in this exploratory study may be due to a number of methodological problems. Further research is required to explore how to best measure team functioning and its relationship with quality of care.

  12. Factors predicting team climate, and its relationship with quality of care in general practice.

    Science.gov (United States)

    Goh, Teik T; Eccles, Martin P; Steen, Nick

    2009-08-04

    Quality of care in general practice may be affected by the team climate perceived by its health and non-health professionals. Better team working is thought to lead to higher effectiveness and quality of care. However, there is limited evidence available on what affects team functioning and its relationship with quality of care in general practice. This study aimed to explore individual and practice factors that were associated with team climate, and to explore the relationship between team climate and quality of care. Cross sectional survey of a convenience sample of 14 general practices and their staff in South Tyneside in the northeast of England. Team climate was measured using the short version of Team Climate Inventory (TCI) questionnaire. Practice characteristics were collected during a structured interview with practice managers. Quality was measured using the practice Quality and Outcome Framework (QOF) scores. General Practitioners (GP) had a higher team climate scores compared to other professionals. Individual's gender and tenure, and number of GPs in the practice were significantly predictors of a higher team climate. There was no significant correlation between mean practice team climate scores (or subscales) with QOF scores. The absence of a relationship between a measure of team climate and quality of care in this exploratory study may be due to a number of methodological problems. Further research is required to explore how to best measure team functioning and its relationship with quality of care.

  13. Quality of life of cancer patients - definition, stages of survival and factors of influence

    International Nuclear Information System (INIS)

    Yaneva, M.

    2005-01-01

    The aim of the review is to represent the state of assessment of quality of life of cancer patients in the investigation of different authors. It is important to know the basic ideas of quality of life during the complex treatment of cancer patients, in order to choose such methods that will lead to an improvement of their living. The definition of the concept 'quality of life', the stages that patients pass and the influencing factors should be familiar to the therapists. Today patients live longer after a complex treatment - it is important how and what challenges they are facing together with their relatives and the medical staff. The attempts to define and measure the quality of life of cancer patients date from the last ten years. This is a social demand to get such medical care, which should be at a certain level leading not only to a longer survival but this life to be of a higher quality. The patients' perceptions and preferences concerning quality of life must be given greater emphasis in cancer treatment decision making which will better his state after a competent explanation of therapists. A quality of life of every patient is as an individual problem as a part of the social health. A classification of the problem of quality of life will enlarge the oncological therapeutic concept

  14. Insufficient quality of sputum submitted for tuberculosis diagnosis and associated factors, in Klaten district, Indonesia

    Science.gov (United States)

    Sakundarno, Mateus; Nurjazuli, Nurjazuli; Jati, Sutopo Patria; Sariningdyah, Retna; Purwadi, Sumarsono; Alisjahbana, Bachti; van der Werf, Marieke J

    2009-01-01

    Background Sputum smear microscopy is the standard diagnostic method for detection of smear positive pulmonary tuberculosis (TB). Insufficient quality of sputum might result in missing cases. In this study we aimed at assessing the quality of sputum in a district in Central Java and determining patient and health worker factors associated with submission of three good quality sputum samples. Methods In 16 health centers information was collected on the quality of sputum submitted by TB suspects, i.e. volume, color, and viscosity. TB suspects were interviewed to assess their knowledge of TB, motivation to provide sputum and whether they were informed why and how to produce a sputum sample. Health workers were interviewed to assess what information they provided to TB suspects about the reason for sputum examination, methods to produce sputum and characteristics of a good quality sputum sample. All health worker and patient factors were evaluated for association with sputum quality. Results Of 387 TB suspects, 294 (76.0%) could be traced and interviewed, and of 272 (70.3%) information about sputum quality was available. Of those 203 (74.6%) submitted three samples, 90 (33.1%) provided at least one good sample, and 37 (13.6%) provided three good quality sputum samples. Of the 272 TB suspects, 168 (61.8%) mentioned that information on the reason for sputum examination was provided, 66 (24.3%) remembered that they were informed about how to produce sputum and 40 (14.7%) recalled being informed about the characteristics of good quality sputum. Paramedics reported to provide often/always information on the importance of sputum examination, and when to produce sputum. Information on how to produce sputum and characteristics of a good sputum sample was less often provided. None of the studied patient characteristics or health worker factors was associated with providing good quality sputum. Conclusion A considerable number of TB suspects did not provide three sputum samples

  15. Factors influencing quality of life of elderly people with dementia and care implications: A systematic review.

    Science.gov (United States)

    Jing, Wenbo; Willis, Rosalind; Feng, Zhixin

    2016-01-01

    Identifying factors associated with Quality of Life (QoL) of elderly people with dementia could contribute to finding pathways to improve QoL for elderly people in dementia. This paper systematically reviews all possible factors that influence QoL of elderly people with dementia, identifies how these factors are different by different stages of dementia and living settings, and explores how the influencing factors could be perceive differently by elderly people with dementia, family members, and caregivers. PubMed, PsycINFO, Web of Science and DelphiS searches from 2000 to 2015 and hand searches of publication lists, reference lists and citations were used to identify primary studies on 'quality of life' and 'dementia' elderly people. The results suggest that there are a complex variety of factors influencing QoL of elderly people with dementia, and the factors cover demographic, physical, psychological, social, and religious aspects. And the factors influencing QoL of elderly people with dementia are different in different living settings (care institutions and communities) as well as different people's perspectives (elderly people with dementia, family members and care staff). Environmental factors and quality of care are important for elderly people in care institutions; while religious seem to only affect QoL of those living in communities. However, this review fails to comprehensively identify unique or common factors associated QoL in dementia across three stages. Further study should pay more attention to comparing factors associated with QoL in dementia across three stages of dementia. Copyright © 2016 Elsevier Ireland Ltd. All rights reserved.

  16. Risk factors for equine laminitis: a systematic review with quality appraisal of published evidence.

    Science.gov (United States)

    Wylie, Claire E; Collins, Simon N; Verheyen, Kristien L P; Newton, J Richard

    2012-07-01

    Epidemiological studies into the risk factors for naturally-occurring equine laminitis are limited. There are a small number of such studies, although the results are inconsistent and remain disputed. The reasons for the conflicting results remain unclear. The aim of this review was to critically evaluate previous research in order to identify publications which provide the best evidence of risk factors for naturally-occurring equine laminitis. A systematic review of English language publications was conducted using MEDLINE (1950-2010), CAB Direct (1910-2010) and IVIS (1997-2010). Additional publications were included by searching bibliographies. Search terms included laminitis, equine, risk factors and epidemiology. Publications which compared a case population to a control population and made inferences about parameters as risk factors for naturally-occurring equine laminitis were included. Information was extracted using predefined data fields, including 18 study quality indicators. In total, 17 publications were fully appraised. Six were considered to provide the most reliable information about risk factors for naturally-occurring laminitis. Information on signalment was well researched and there was good evidence for an association with chronic laminitis and increasing age. There remain inconsistent results for many other horse-level risk factors including gender, breed and bodyweight. Previous publications estimating risk factors for equine laminitis were of reasonable quality, although they were limited in the number and scope of the risk factors studied. High-quality, evidence-based studies are needed to identify further risk factors and to establish consensus over previously identified risk factors for different equine populations. Copyright © 2011 Elsevier Ltd. All rights reserved.

  17. Study on the factors affecting the quality of public bus transportation service in Bali Province using factor analysis

    Science.gov (United States)

    Susilawati, M.; Nilakusmawati, D. P. E.

    2017-06-01

    The volume of mobility flows are increasing day by day and the condition of the number of people using private transport modes contribute to traffic congestion. With the limited capacity of the road, one of the alternatives solution to reduce congestion is to optimize the use of public transport. The purposes of this study are to determine the factors that influence user’s satisfaction on the quality of public bus transportation service and determine variables that became identifier on the dominant factor affecting user’s satisfaction. The study was conducted for the public bus transportation between districts in the province of Bali, which is among the eight regencies and one municipality, using a questionnaire as a data collection instrument. Service variables determinant of user’s satisfaction in this study, described in 25 questions, which were analyzed using factor analysis. The results showed there were six factors that explain the satisfaction of users of public transport in Bali, with a total diversity of data that can be parsed by 61.436%. These factors are: Safety and comfort, Responsiveness, Capacity, Tangible, Safety, Reliability. The dominant factor affecting public transport user satisfaction is the safety and comfort, with the most influential variable is feeling concerned about the personal safety of users when on the bus.

  18. Quality of Life and Its Related Factors of Radiation Therapy Cancer Patients

    Energy Technology Data Exchange (ETDEWEB)

    Shin, Ryung Mi; Jung, Won Seok; Oh, Byeong Heon; Jo, Jun Young; Kim, Gi Chul; Choi, Tae Gyu [Dept. of Radiation Oncology, Kyunghee University Medical Center, Seoul (Korea, Republic of); Lee, Sok Goo [Dept. of Preventive Medicine, Chungnam National University College of Medicine, Daejeon (Korea, Republic of)

    2011-03-15

    The purpose of this master's thesis is to utilize basic data in order to improve the quality of life of cancer patients who received radiation therapy after analysing related factors that influence patient's quality of life and obtaining information about physical, mental problems of patients. By using a structured questionnaire about various characteristics and forms of support, I carried out a survey targeting 107 patients that experienced radiation therapy at a university hospital in the Daejeon metropolitan area from July 15 to August 15, 2010 and analysed the factors influencing quality of life. In case of pain due to disease, 65.15 and painless 81.87 showed a high grade quality of life. As body weight decreases, the quality of life become lower. When the grade of quality of life according to economic characteristics was compared, all items except treatment period showed a difference (P=0.000). When the score of social support, family support, medical support and self-esteem was low, the mark of quality of life showed respectively 61.71, 68.77, 71.31, and 69.39 on the basis of 128 points. When the score of support form was high, the mark of quality of life showed 90.47, 83.29, 90.40, and 90.36 (P<0.05). When analyzing the correlation between social support, family support, medical support and self-esteem and the degree of quality of life, social support was 0.768, family support 0.596, medical support 0.434, self-esteem 0.516. They indicated the correlation of meaningful quantity statistically (P<0.01). The factors that improved the quality of life were married state, having a job and painless status. As monthly income increases, the quality of life was also much improved (P<0.05). Among the factors related to quality of life, social support and medical support and higher self-esteem scores of the quality of life score increased 0.979 point, 0.508 points and 1.667 point, respectively. In conclusion, the quality of life of cancer patients that

  19. Quality of Life and Its Related Factors of Radiation Therapy Cancer Patients

    International Nuclear Information System (INIS)

    Shin, Ryung Mi; Jung, Won Seok; Oh, Byeong Heon; Jo, Jun Young; Kim, Gi Chul; Choi, Tae Gyu; Lee, Sok Goo

    2011-01-01

    The purpose of this master's thesis is to utilize basic data in order to improve the quality of life of cancer patients who received radiation therapy after analysing related factors that influence patient's quality of life and obtaining information about physical, mental problems of patients. By using a structured questionnaire about various characteristics and forms of support, I carried out a survey targeting 107 patients that experienced radiation therapy at a university hospital in the Daejeon metropolitan area from July 15 to August 15, 2010 and analysed the factors influencing quality of life. In case of pain due to disease, 65.15 and painless 81.87 showed a high grade quality of life. As body weight decreases, the quality of life become lower. When the grade of quality of life according to economic characteristics was compared, all items except treatment period showed a difference (P=0.000). When the score of social support, family support, medical support and self-esteem was low, the mark of quality of life showed respectively 61.71, 68.77, 71.31, and 69.39 on the basis of 128 points. When the score of support form was high, the mark of quality of life showed 90.47, 83.29, 90.40, and 90.36 (P<0.05). When analyzing the correlation between social support, family support, medical support and self-esteem and the degree of quality of life, social support was 0.768, family support 0.596, medical support 0.434, self-esteem 0.516. They indicated the correlation of meaningful quantity statistically (P<0.01). The factors that improved the quality of life were married state, having a job and painless status. As monthly income increases, the quality of life was also much improved (P<0.05). Among the factors related to quality of life, social support and medical support and higher self-esteem scores of the quality of life score increased 0.979 point, 0.508 points and 1.667 point, respectively. In conclusion, the quality of life of cancer patients that received

  20. Factor analysis as a tool in groundwater quality management: two southern African case studies

    Science.gov (United States)

    Love, David; Hallbauer, Dieter; Amos, Amos; Hranova, Roumiana

    Although developed as a tool in the social sciences, R-mode factor analysis, a multivariate statistical tool, has proven highly effective in studies of groundwater quality. The technique examines the relationships between variables (such as chemical parameters in groundwater), which are shown by a number of cases (such as sampling points). In this study, two examples are presented. The first is of groundwater around a southern African iron ore mine and the second is of groundwater in the vicinity of a southern African municipal sewage disposal works. Groundwater samples were collected, their chemistry analysed and factor analysis was performed on each of the chemical datasets. In the first case study, factor analysis successfully separated signatures due to uncontaminated groundwater (calcium, magnesium and bicarbonate), agricultural activities (potassium and ammonium) and mining activities (sodium, chloride and sulphate). In the second case study, factor analysis did identify a chemical signature (nitrate and phosphate; minor iron) related to the sewage works-but since this signature involved parameters that were within regulated limits, the finding was of limited value for management purposes. Thus although R-mode factor analysis can be a valuable tool studies of groundwater quality, this is not always the case. Multivariate statistical techniques like factor analysis should thus be used as supplementary to, but not in replacement of, conventional groundwater quality data treatment methods.

  1. Symmetric Euler orientation representations for orientational averaging.

    Science.gov (United States)

    Mayerhöfer, Thomas G

    2005-09-01

    A new kind of orientation representation called symmetric Euler orientation representation (SEOR) is presented. It is based on a combination of the conventional Euler orientation representations (Euler angles) and Hamilton's quaternions. The properties of the SEORs concerning orientational averaging are explored and compared to those of averaging schemes that are based on conventional Euler orientation representations. To that aim, the reflectance of a hypothetical polycrystalline material with orthorhombic crystal symmetry was calculated. The calculation was carried out according to the average refractive index theory (ARIT [T.G. Mayerhöfer, Appl. Spectrosc. 56 (2002) 1194]). It is shown that the use of averaging schemes based on conventional Euler orientation representations leads to a dependence of the result from the specific Euler orientation representation that was utilized and from the initial position of the crystal. The latter problem can be overcome partly by the introduction of a weighing factor, but only for two-axes-type Euler orientation representations. In case of a numerical evaluation of the average, a residual difference remains also if a two-axes type Euler orientation representation is used despite of the utilization of a weighing factor. In contrast, this problem does not occur if a symmetric Euler orientation representation is used as a matter of principle, while the result of the averaging for both types of orientation representations converges with increasing number of orientations considered in the numerical evaluation. Additionally, the use of a weighing factor and/or non-equally spaced steps in the numerical evaluation of the average is not necessary. The symmetrical Euler orientation representations are therefore ideally suited for the use in orientational averaging procedures.

  2. Investigation of factors associated with health-related quality of life and psychological distress in vitiligo.

    Science.gov (United States)

    Bonotis, Konstantinos; Pantelis, Konstantinos; Karaoulanis, Sokratis; Katsimaglis, Chrysanthos; Papaliaga, Maria; Zafiriou, Efterpi; Tsogas, Panagiotis

    2016-01-01

    Skin diseases distort the body image with possible negative effects on the quality of life and psychosocial health of patients. While vitiligo does not affect the physical well-being, it may be psychologically distressing. The present study was based on the hypothesis that particular factors might be critical regarding the adjustment to the disease. We investigated the vitiligo-related quality of life and psychological distress of 216 patients diagnosed with the disease in relation to demographic factors, disease components, and personality traits. For this purpose, we administered the self-completed questionnaires Dermatological Quality of Life Index, General Health Questionnaire, Eysenck Personality Inventory, and Rosenberg Self-Esteem Scale. Statistical analysis revealed a significant positive correlation between patients' distress and health-related quality of life. Moreover, the impact of vitiligo on the quality of life was significantly associated with disease variables as well as personality traits and gender. On the other hand, psychological distress was significantly associated with personality traits and gender, but not with disease components. Our results indicate that the psychosocial adjustment to the disease is mainly influenced by subjective factors. This observation could imply the need for targeted support interventions in the treatment of vitiligo. © 2015 Deutsche Dermatologische Gesellschaft (DDG). Published by John Wiley & Sons Ltd.

  3. Critical Factors Affecting the Quality of Industrialized Building System Projects in China

    Directory of Open Access Journals (Sweden)

    Yuanyan Gan

    2017-02-01

    Full Text Available Whilst the benefits of applying an industrialized building system (IBS have been well recognized globally in the construction industry, the application of IBS is particularly limited in developing countries such as China, and quality is considered one of the key issues affecting its application. This paper identifies a number of the key quality factors which present barriers to the promotion of IBS within the context of the Chinese construction industry. These include key factors such as “Inaccurate design of the connecting points between core components”, “Lack of design norms and standards for IBS components”, “Lack of quality criteria for IBS components”, “Lack of production norms and standards for IBS components”, “Lack of quality management system in production process”, and “Lack of technical guidelines for the construction of IBS projects”. The data used for analysis are derived from a comprehensive practical survey. The validity of the data is examined by using a statistical method. The findings from the study provide valuable references for formulating effective measures to mitigate the negative effects of these quality factors on IBS application in China, thereby ensuring that practice of the IBS system can be further developed within the country.

  4. Authentic sheep meat in the European Union: Factors influencing and validating its unique meat quality.

    Science.gov (United States)

    Erasmus, Sara W; Muller, Magdalena; Hoffman, Louwrens C

    2017-05-01

    Authentic meat products are gaining attention through their unique quality characteristics linked to their origin. Various factors are known to influence the quality of fresh meat. This review describes the different Protected Designation of Origin (PDO) and Protected Geographical Indication (PGI) lamb types and discusses the factors which influences its unique sensory and chemical characteristics. Flavour, aroma, texture and colour play an integral part in the sensory quality of denomination of origin fresh meat products. For authentic fresh sheep meat the sensory (as well as chemical) quality is largely influenced by diet followed by breed, age and gender. However, diet forms the link with the geographical area of origin, which together with the traditional production system and sheep breeds used, lends the product its authentic nature. This review shows how diet linked to origin can affect the quality of the meat and furthermore how other factors such as breed can also have an effect. Research relating to the authentic lamb types were evaluated and the shortcomings highlighted in order to assist with the development of PDO and PGI specifications in the future. © 2016 Society of Chemical Industry. © 2016 Society of Chemical Industry.

  5. [Post-partum depressive symptoms: Prevalence, risk factors and relationship with quality of life].

    Science.gov (United States)

    Cherif, R; Feki, I; Gassara, H; Baati, I; Sellami, R; Feki, H; Chaabene, K; Masmoudi, J

    2017-10-01

    The objective of our study was to estimate the prevalence of the post-partum depressive symptomatology in a sample of Tunisian women, to study associated factors and to assess its relationship to quality of life. This is a prospective study carried out in two stages: during the first week (T1), then between sixth and eighth week post-partum (T2). Depressive symptomatology and quality of life were assessed respectively by the Edinburgh Postnatal Depression Scale and the World Health Organization Quality of Life scale. In the first stage, the prevalence of depressive symptomatology in the total sample (150 women) was 14.7% and was related to age above 35 years, low school level, personal psychiatric history, multiparity, caesarean delivery or forceps in the previous pregnancy and unplanned pregnancy. This prevalence was 19.8% among the 126 women reviewed in T2 and was correlated with the exaggerated sympathetic signs during pregnancy, namely perversion of taste and fatigue. Quality of life was strongly correlated with depressive symptoms in T1 and T2. Post-partum depressive symptoms were common in our sample and were correlated with quality of life. Therapeutic measures should be proposed for women with post-partum depressive symptoms and particularly with several risk factors in order to improve their quality of life. Copyright © 2017 Elsevier Masson SAS. All rights reserved.

  6. [Social and family factors associated with quality of life in children in schools from Piura, Peru].

    Science.gov (United States)

    Solano, Fiorela E; Vilela-Estrada, Martin A; Meza-Liviapoma, Jessica; Araujo-Chumacero, Mary M; Vilela-Estrada, Ana L; Mejia, Christian R

    2017-04-01

    To determine the socio-familial factors associated with quality of life within the family in children of schools in Piura, Peru. A cross-sectional study in a convenience sample of children between 3 to 6 years in schools in the city of Piura, Perú. The quality of life was measured by the HOME test, with data adjusted to the Machover and Koppitz test, and were also associated with other social and family variables. P values were obtained by generalised linear models, adjusting for the residence of each subject. Of the 431 respondents, 64% (275) were male. The median age was 4 years old. A poor quality of life was observed in 50% of children. Traits of violence (p < .001) and aggression (p < .001) were associated to higher frequencies of poor quality of life, adjusted for shyness, dependence, and immaturity. The perception of parent’s love (p = .005), living with both parents (p < .001), playing with someone at home (p = .036), the person with whom plays most is the mother (p = .003) or both parents (p = .004) were associated with the quality of life in the survey. A large percentage of children who had a poor quality of life was found. The social and family protective factors were to live with both parents, and the demonstration of affection between both parents and play with both.

  7. Developing Student Housing Quality Scale in Higher Institutions of Learning: A Factor Analysis Approach

    Directory of Open Access Journals (Sweden)

    F. K. Bondinuba

    2013-01-01

    Full Text Available The researchers developed an instrument for measuring student housing quality (SHQ in Higher Institutions of Learning (HIL in Ghana. The paper sought to validate the student housing quality scale (SHOQUAL through factor analysis approach. 700 respondents were sampled from two public HIL in Ghana in a cross-sectional survey that used a self-administered structured questionnaire for data collection. Confirmatory factor fnalysis (CFA was conducted to detect the underlying latent variables that significantly determine SHQ in Ghanaian HIL. The findings indicate that four emerged SHQ dimensions relevant to the research context were labelled as follows: core facility quality, enabling facility quality, support facility quality, and cost of housing. The constructs in the derived model possess high reliability and validity. Student housing service providers could conveniently use the derived instrument items for measuring SHQ in HIL. Implications are discussed and limitations are noted. The paper contributes to the literature in the areas of models of service quality in student housing management in HIL.

  8. Information quality for PPC: analysis of influence factors and diagnosis method proposal

    Directory of Open Access Journals (Sweden)

    Eduardo Belmonte Möller

    2013-03-01

    Full Text Available One of the most important problems that companies have to face for Production Planning and Control (PPC is the lack of Information Quality (IQ to support the decision making process. In this context, determining which factors affect the IQ necessary for PPC is a key issue. This paper presents a case study that analyzes the main influence factors on IQ. Furthermore, this paper proposes a method to perform diagnosis about these influence factors in companies. To analyze the IQ influence factors, a classification based on the sociotechnical approach was used and a set of matrixes that relate the IQ influence factors with the different functional areas that support the PPC were proposed. Results enable to identify which are the main factors and the functional areas and processes that can be improved to increase the IQ for PPC. This paper presents also practical results that show how to drive an IQ diagnosis.

  9. Quality-factor and reflection-coefficient estimation using reflected surface waves

    NARCIS (Netherlands)

    Draganov, D.S.; Ruigrok, E.N.; Ghose, R.; Mikesell, D.; Van Wijk, K.

    2014-01-01

    We propose a method for estimating the reflection coefficient of a subvertical boundary and the the quality factor of the medium between a receiver and the subvertical boundary. The method uses surface waves from transient deterministic sources and is inspired by the occurrence of non-physical

  10. Quality of Life after Young Ischemic Stroke of Mild Severity Is Mainly Influenced by Psychological Factors

    NARCIS (Netherlands)

    Bruijn, M.A. de; Synhaeve, N.E.; Rijsbergen, M.W. van; Leeuw, F.E. de; Mark, R.E.; Jansen, B.P.; Kort, P.L. de

    2015-01-01

    BACKGROUND: Long-term prognosis in terms of quality of life (QoL) in young stroke patients is of importance because they usually have a long life expectancy and extensive daily life demands. We aimed at determining which medical and psychological factors influence the QoL in young stroke patients

  11. Quality of life after young ischemic stroke of mild severity is mainly influenced by psychological factors

    NARCIS (Netherlands)

    de Bruijn, M.; Synhaeve, N.A.; van Rijsbergen, Marielle; de Leeuw, F.-E.; Mark, Ruth; Jansen, B.; de Kort, P.L.

    2015-01-01

    Background Long-term prognosis in terms of quality of life (QoL) in young stroke patients is of importance because they usually have a long life expectancy and extensive daily life demands. We aimed at determining which medical and psychological factors influence the QoL in young stroke patients

  12. Exploring Factors Influencing Collaborative Knowledge Construction in Online Discussions: Student Facilitation and Quality of Initial Postings

    Science.gov (United States)

    Ioannou, Andri; Demetriou, Skevi; Mama, Maria

    2014-01-01

    Although lots of studies have investigated collaborative knowledge construction in online courses, the factors influencing this process are yet to be fully determined. This study provides quantitative and qualitative types of evidence on how (naturally emerged) student facilitation and quality of initial postings influence collaborative knowledge…

  13. Quality of agricultural-food products as a factor of the Republic of ...

    African Journals Online (AJOL)

    This study analyzes the competitiveness of agricultural-food products of Serbia in the local and international markets. The subject of this research is analysis of relevant competitiveness factors of agricultural-food products, aiming to assess the products' quality and highlight the main intentions of production and processing.

  14. 3D microwave cavity with magnetic flux control and enhanced quality factor

    Energy Technology Data Exchange (ETDEWEB)

    Reshitnyk, Yarema [The University of Queensland, School of Mathematics and Physics, St Lucia (Australia); Jerger, Markus [The University of Queensland, ARC Centre of Excellence for Engineered Quantum Systems, 4072 (Australia); Fedorov, Arkady [The University of Queensland, School of Mathematics and Physics, St Lucia (Australia); The University of Queensland, ARC Centre of Excellence for Engineered Quantum Systems, 4072 (Australia)

    2016-12-15

    Three-dimensional (3D) microwave cavities have been extensively used for coupling and interacting with superconducting quantum bits (qubits), providing a versatile platform for quantum control experiments and for realizing hybrid quantum systems. While having high quality factors (>10{sup 6}) superconducting cavities do not permit magnetic field control of qubits. In contrast, cavities made of normal metals are transparent to magnetic fields, but experience lower quality factors (∝10{sup 4}). We have created a hybrid cavity which is primarily composed of aluminium but also contains a small copper insert reaching the internal quality factor of ≅10{sup 5}, an order of magnitude improvement over all previously tested normal metal cavities. In order to demonstrate precise magnetic control, we performed spectroscopy of three superconducting qubits, where individual control of each qubit's frequency was exerted with small external wire coils. An improvement in quality factor and magnetic field control makes this 3D hybrid cavity an attractive new element for circuit quantum electrodynamics experiments. (orig.)

  15. Factors Influencing Health-Related Quality of Life of Overweight and Obese Children in South Korea

    Science.gov (United States)

    Kim, Hee Soon; Park, Jiyoung; Ma, Yumi; Ham, Ok Kyung

    2013-01-01

    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…

  16. Controllable factors affecting the epitaxial quality of LaCoO3 films ...

    Indian Academy of Sciences (India)

    63

    Controllable factors affecting the epitaxial quality of LaCoO3 films grown by polymer assisted deposition. YANPING ZHANG 1,2, HAIFENG LIU 2,*, RUISHI XIE 2, GUOHUA MA 2, JICHUAN. HUO 2,* and HAIBIN WANG 3. 1 School of Materials Science and Engineering, Southwest University of Science and Technology, ...

  17. Impact of environmental factors on maintaining water quality of Bakreswar reservoir, India

    Directory of Open Access Journals (Sweden)

    Moitreyee Banerjee

    2015-09-01

    Full Text Available Reservoirs and dams are engineered systems designed to serve purposes like supply of drinking water as well as other commercial and industrial use. A thorough assessment of water quality for these systems is thus necessary. The present study is carried out at Bakreswar reservoir, in Birbhum district, which was created by the dam, built on Bakreswar River. The major purpose of the reservoir is the supply of drinking water to the surrounding villages and Bakreswar Thermal Power Station. Water samples were collected fortnightly from three different stations of the reservoir. Physical and chemical factors like dissolved oxygen, atmospheric temperature, pH, conductivity, salinity, solar radiation, water temperature, alkalinity, hardness, chloride, productivity etc. were analysed using standard procedure. Abundance data is calculated for four major groups of zooplanktons (Cladocera, Copepoda, Ostracoda, and Rotifera with the software PAST 2.1. Multivariate statistical analysis like PCA, hierarchical cluster and CCA are performed in order to predict the temporal variation in the water quality factors using SPSS 20. Distinct seasonal variation was found for environmental factors and zooplankton groups. Bakreswar reservoir has good assemblage of zooplankton and distinct temporal variation of environmental factors and its association with zooplankton predicts water quality condition. These results could help in formulating proper strategies for advanced water quality management and conservation of reservoir ecosystem. Key elements for growth and sustenance of the system can then be evaluated and this knowledge can be further applied for management purposes.

  18. Effect of face fracturing on shear wave coda quality factor estimated from acoustic emission events

    CSIR Research Space (South Africa)

    Kgarume, T

    2013-10-01

    Full Text Available The dependency of the quality factor derived from S wave coda (Q(subc)) on frequency is analysed in order to understand the effect of fracturing ahead of a mining stope. Micro seismic events recorded using acoustic emission sensors in a mining...

  19. Factors Influencing Older Worker Quality of Life and Intent to Continue to Work

    Science.gov (United States)

    Spokus, Diane

    2008-01-01

    High turnover has been a major problem in healthcare organizations. The purpose of this study was to examine the relationship among job characteristics, social support, and organizational characteristics on quality of the working life. Subsequently, the intent was to examine how those factors collectively influence turnover intention. A…

  20. Silicon nitride membrane resonators at millikelvin temperatures with quality factors exceeding 10^8

    NARCIS (Netherlands)

    Yuan, M.; Cohen, M.A.; Steele, G.A.

    2015-01-01

    We study the mechanical dissipation of the fundamental mode of millimeter-sized, high quality-factor (Q) metalized silicon nitride membranes at temperatures down to 14?mK using a three-dimensional optomechanical cavity. Below 200?mK, high-Q modes of the membranes show a diverging increase of Q with

  1. Factors contributing to the health-related quality of life of people ...

    African Journals Online (AJOL)

    This study identified factors that influence the health-related quality of life of people living with HIV (PLWH). A qualitative research approach was used for this study and focus group discussions (FGDs) were used for data collection, while grounded theory informed the data analysis. The key finding of this study is that ...

  2. Oscillatory variations in the Q factors of high quality micropillar cavities

    DEFF Research Database (Denmark)

    Reitzenstein, S.; Gregersen, Niels; Kistner, C.

    2009-01-01

    We report on the observation of oscillatory variations in the quality Q factor of quantum dot-micropillar cavities based on planar Bragg reflectors. The oscillatory behavior in the Q versus diameter dependence appears in the diameter range between 1.0 and 4.0 m, has a characteristic period of a few...

  3. QUALITY OF HOTEL SERVICES AS A FACTOR DETERMINING THE TRUST OF CUSTOMERS – CONSUMER RESEARCH

    Directory of Open Access Journals (Sweden)

    Jerzy Cieślik

    2017-06-01

    Full Text Available The aim of the study was to investigate the respondents' opinion about the quality of hotel services as a factor conditioning the trust of customers occupying accommodation facilities in the province of Silesia. The study was conducted in late May and June 2013 among 100 respondents. In order to establish a statistically significant correlation between the answers and the factors differentiating Chi2 test was used using Statistica software v.10.0. The strength of the correlation between responses and factors differentiating the study group established by the designation factor V Cramer. The analysis found that the preferences and behavior of guests occupying accommodations in Silesia are not dependent on gender, age, education or place of (permanent/ temporary residence of respondents. Hotel guests occupying accommodations in Silesia are characterized by high awareness on the categorization of hotels, which is based on frequent use of hotel services for tourism, mainly accommodation of individual or group trips. The main determinants of the choice of accommodation facilities in Silesia by hotel guests proved to be the location of the property but also the price and the comfort of its rooms and the quality of services offered, including the quality of the work of the staff and the quality of additional services.

  4. Identification af explosive power factors as predictors of player quality in young female volleyball players.

    Science.gov (United States)

    Grgantov, Zoran; Milić, Mirjana; Katić, Ratko

    2013-05-01

    With the purpose of determining the factor structure of explosive power, as well as the influence of each factor on situational efficiency, 56 young female volleyball players were tested using 14 tests for assessing nonspecific and specific explosive power. By factor analysis, 4 significant factors were isolated which explained the total of over 80% of the common variability in young female volleyball players. The first factor was defined as volleyball-specific jumping, the second factor as nonspecific jumping and sprinting, the third factor as throwing explosive power, while the fourth factor was interpreted as volleyball-specific throwing and spiking speed from the ground. Results obtained by regression analysis in the latent space of explosive power indicate that the identified factors are good predictors of player quality in young female volleyball players. The fourth factor defined as throwing and spiking speed from the ground had the largest influence on player quality, followed by volleyball-specific jumping and nonspecific jumping and sprinting, and to a much lesser extent, by throwing explosive power The results obtained in this age group bring to the fore the ability of spiking and serving a ball of high speed, which hinders the opponents from playing those balls in serve reception and field defence. This ability, combined with a high standing vertical jump reach and spike approach vertical jump reach (which is the basis of the 1st varimax factor) enables successful performance of all volleyball elements by which points are won in complex 1 (spike) and complex 2 (serve and block). Even though the 2nd factor (nonspecific jumping and sprinting) has a slightly smaller impact on situational efficiency in young players, this ability provides preconditions i.e. preparation for successful realisation of all volleyball elements, so greater attention must be paid to perfecting it in young female volleyball players.

  5. Quality services as a key factor of competitiveness of transport companies

    Directory of Open Access Journals (Sweden)

    Bogetić Srđan

    2014-01-01

    Full Text Available This paper deals with the question of the service quality as an important factor of transport companies in the process of improving competitiveness. Due to global competition and great opportunities that are offered to customers, transporting enterprises need to change their current relationship with the end consumer in order to improve the quality of offered services. Traffic enterprises have realized that improvement of the business processes comes with the use of modern ICT solutions and applications that will ensure that protection of the environment has been taken into account and the quality of service improved as well. Domestic traffic enterprises are not yet ready to accept the change of the way of conducting their business, which furtherly affects the quality of services, and they are still not prepared for the arrival of competition in the transport market.

  6. Association of sleep hygiene-related factors and sleep quality among university students in Hong Kong.

    Science.gov (United States)

    Suen, Lorna K P; Tam, Wilson W S; Hon, K L

    2010-06-01

    To examine whether sleep hygiene-related factors are associated with sleep quality among university students. Cross-sectional survey. A university in Hong Kong. Full-time university students recruited by convenience sampling. Responses to a sleep questionnaire containing the Pittsburgh Sleep Quality Index and obtaining sleep hygiene knowledge and practice, as well as knowledge on caffeine were used for data collection. Regression analysis with stepwise selection procedure revealed that sleep hygiene practice was significantly associated with the Pittsburgh Sleep Quality Index score after adjusting for age, gender, year of study, and type of residence (b= -0.08, Psleep hygiene practice was significantly associated with sleep quality. Appropriate measures and sleep hygiene education need to be emphasised among university students in order to increase their awareness on the importance of adopting healthy sleep hygiene practices.

  7. Diet quality is associated with mental health, social support, and neighborhood factors among Veterans.

    Science.gov (United States)

    Hoerster, Katherine D; Wilson, Sarah; Nelson, Karin M; Reiber, Gayle E; Masheb, Robin M

    2016-12-01

    United States Veterans have a higher prevalence of overweight and related chronic conditions compared to the general population. Although diet is a primary and modifiable contributor to these conditions, little is known about factors influencing diet quality among Veterans. The goal of this study is to examine individual, social environment, and physical environment correlates of general diet quality among Veterans. Study participants (N=653) received care at an urban VA Medical Center in Seattle, WA and completed a mailed survey in 2012 and 2013. Diet quality was assessed with Starting the Conversation, an instrument that measures consumption of unhealthy snacks, fast food, desserts, sugar-sweetened beverages, and fats; fruits and vegetables; and healthy proteins. Variables significantly (pfoods in neighborhood stores where the Veteran shops (Diff=-0.37; CI=-0.6, -0.2; pfoods are needed to improve Veteran diet quality. Published by Elsevier Ltd.

  8. Associations of quality of sleep with lifestyle factors and profile of studies among Lithuanian students.

    Science.gov (United States)

    Preišegolavičiūtė, Evelina; Leskauskas, Darius; Adomaitienė, Virginija

    2010-01-01

    The objective of the study was to analyze associations among quality of sleep, profile of the studies, and lifestyle factors among the students of three different study profiles (medicine, economics, and law). A total of 405 randomly selected students from the first and fourth years of studies from 4 different universities in Lithuania answered the standardized questionnaires consisting of two parts: 1) the Pittsburgh Sleep Quality Index (PSQI) for subjective evaluation of sleep quality; 2) the questionnaire about sleep and lifestyle habits and impact of poor sleep on the quality of life developed by the researchers. More than half (59.4%) of the students scored higher than 5 on the PSQI, which allowed suspecting sleep disorders. A significant difference in the frequency of poor sleepers was found regarding the profile of studies (Pstudents. There was a significant correlation between quality of sleep and subjective evaluation of quality of life (Pstudents experienced the highest impact of poor sleep on the quality of life (P=0.008). Students studying before going to sleep, spending more time studying, and having less leisure time had worse quality of sleep (Pstudents of medicine. The incidence of sleep problems is high among students in Lithuania, reaching 59.4%. Medical students have worse quality of sleep and worse impact of poor sleep on the quality of life compared to students of law and economics. A significant difference was found between medical students and their peers in other profiles of studies regarding their attitudes and habits related to studies: medical students spent more time for studying, were more anxious about studies and less satisfied with the results, studied more often before going to sleep.

  9. Health-related quality of life of patients with rheumatoid arthritis. Which factors are of significance?

    DEFF Research Database (Denmark)

    Linde, L.; Sørensen, J.; Ostergaard, M.

    2008-01-01

    Rheumatoid arthritis (RA) is a chronic inflammatory disease causing joint pain, loss of function and decreased health-related quality of life (HRQoL). HRQoL in RA patients is associated with several risk factors; in this paper the evidence relating to the most important risk factors is reviewed....... Modern medical therapy has improved HRQoL in RA patients, while demographic factors (female sex and older age), low socioeconomic status (in terms of education and position in the work force) and the presence of comorbid conditions appear to be associated with poorer HRQoL Udgivelsesdato: 2008/3/3...

  10. Quality of life and related factors in Menopausal women in Kashan city

    Directory of Open Access Journals (Sweden)

    Masoomeh Abedzadeh

    2009-09-01

    Full Text Available Background: Menopause is a physiological event that occurs in women's life and result in physical, emotional and social changes which affects their quality of life. Because of controversial finding in previous researches and lack of such study in kashan city, this study investigated the quality of life in menopausal women and its related factors. Methods: A cross - sectional study was performed on 700 menopausal women aged 40-60 in Kashan city with cluster sampling. Menopausal Specific Quality of life questionnaire (MENQOL was used for estimation of QOL and related factor such as age, job, educational level, marital status, duration of menopause, child at home, income satisfaction, marital satisfaction, exercise, smoking and family smoking were examined with statistical tests. Results: The quality of life was high in 17.9%, intermediate in 68.9% and low in 13.3% of women. Most of women had intermediate quality of life at vasomotor domain (67.3 %, psychosomatic domain (67.4%, physical domain(46.3% and sexual domain (51.6%.Also there was a significant difference between quality of life and educational level (P=0.004, income satisfaction (P=0.01 and exercise (P=0.0001. Conclusions: Educational level, exercise and income satisfaction are related with quality of life in menopausal women. Based on our findings, we emphasis on teaching about menopause, its symptom and adverse effects. Also emphasizes the necessity use of non pharmacological methods such as exercise and change in life style and diet to improve quality of life in menopausal women.

  11. Hearing the patient's voice? Factors affecting the use of patient survey data in quality improvement.

    Science.gov (United States)

    Davies, E; Cleary, P D

    2005-12-01

    To develop a framework for understanding factors affecting the use of patient survey data in quality improvement. Qualitative interviews with senior health professionals and managers and a review of the literature. A quality improvement collaborative in Minnesota, USA involving teams from eight medical groups, focusing on how to use patient survey data to improve patient centred care. Eight team leaders (medical, clinical improvement or service quality directors) and six team members (clinical improvement coordinators and managers). Respondents reported three types of barriers before the collaborative: organisational, professional and data related. Organisational barriers included lack of supporting values for patient centred care, competing priorities, and lack of an effective quality improvement infrastructure. Professional barriers included clinicians and staff not being used to focusing on patient interaction as a quality issue, individuals not necessarily having been selected, trained or supported to provide patient centred care, and scepticism, defensiveness or resistance to change following feedback. Data related barriers included lack of expertise with survey data, lack of timely and specific results, uncertainty over the effective interventions or time frames for improvement, and consequent risk of perceived low cost effectiveness of data collection. Factors that appeared to have promoted data use included board led strategies to change culture and create quality improvement forums, leadership from senior physicians and managers, and the persistence of quality improvement staff over several years in demonstrating change in other areas. Using patient survey data may require a more concerted effort than for other clinical data. Organisations may need to develop cultures that support patient centred care, quality improvement capacity, and to align professional receptiveness and leadership with technical expertise with the data.

  12. Identification and Assessment of Potential Water Quality Impact Factors for Drinking-Water Reservoirs

    Science.gov (United States)

    Gu, Qing; Deng, Jinsong; Wang, Ke; Lin, Yi; Li, Jun; Gan, Muye; Ma, Ligang; Hong, Yang

    2014-01-01

    Various reservoirs have been serving as the most important drinking water sources in Zhejiang Province, China, due to the uneven distribution of precipitation and severe river pollution. Unfortunately, rapid urbanization and industrialization have been continuously challenging the water quality of the drinking-water reservoirs. The identification and assessment of potential impacts is indispensable in water resource management and protection. This study investigates the drinking water reservoirs in Zhejiang Province to better understand the potential impact on water quality. Altogether seventy-three typical drinking reservoirs in Zhejiang Province encompassing various water storage levels were selected and evaluated. Using fifty-two reservoirs as training samples, the classification and regression tree (CART) method and sixteen comprehensive variables, including six sub-sets (land use, population, socio-economy, geographical features, inherent characteristics, and climate), were adopted to establish a decision-making model for identifying and assessing their potential impacts on drinking-water quality. The water quality class of the remaining twenty-one reservoirs was then predicted and tested based on the decision-making model, resulting in a water quality class attribution accuracy of 81.0%. Based on the decision rules and quantitative importance of the independent variables, industrial emissions was identified as the most important factor influencing the water quality of reservoirs; land use and human habitation also had a substantial impact on water quality. The results of this study provide insights into the factors impacting the water quality of reservoirs as well as basic information for protecting reservoir water resources. PMID:24919129

  13. Geographic factors as determinants of food security: a Western Australian food pricing and quality study.

    Science.gov (United States)

    Pollard, Christina Mary; Landrigan, Timothy John; Ellies, Pernilla Laila; Kerr, Deborah Anne; Lester, Matthew Langdon Underwood; Goodchild, Stanley Edward

    2014-01-01

    Food affordability and quality can influence food choice. This research explores the impact of geographic factors on food pricing and quality in Western Australia (WA). A Healthy Food Access Basket (HFAB) was cost and a visual and descriptive quality assessment of 13 commonly consumed fresh produce items was conducted in-store on a representative sample of 144 food grocery stores. The WA retail environment in 2010 had 447 grocery stores servicing 2.9 million people: 38% of stores the two major chains (Coles® Supermarkets Australia and Woolworths ® Limited) in population dense areas, 50% were smaller independently owned stores (Independent Grocers Association®) in regional areas as well, and 12% Indigenous community stores in very remote areas. The HFAB cost 24% (pquality with only 80% of very remote stores meeting all criteria for fresh produce compared with 93% in Perth. About 30% of very remote stores did not meet quality criteria for bananas, green beans, lettuce, and tomatoes. With increasing geographic isolation, most foods cost more and the quality of fresh produce was lower. Food affordability and quality may deter healthier food choice in geographically isolated communities. Improving affordability and quality of nutritious foods in remote communities may positively impact food choices, improve food security and prevent diet-sensitive chronic disease. Policy makers should consider influencing agriculture, trade, commerce, transport, freight, and modifying local food economies.

  14. Lagrangian averaging with geodesic mean

    Science.gov (United States)

    Oliver, Marcel

    2017-11-01

    This paper revisits the derivation of the Lagrangian averaged Euler (LAE), or Euler-α equations in the light of an intrinsic definition of the averaged flow map as the geodesic mean on the volume-preserving diffeomorphism group. Under the additional assumption that first-order fluctuations are statistically isotropic and transported by the mean flow as a vector field, averaging of the kinetic energy Lagrangian of an ideal fluid yields the LAE Lagrangian. The derivation presented here assumes a Euclidean spatial domain without boundaries.

  15. Risk factors for bacteriological quality of bulk tank milk in Prince Edward Island dairy herds. Part 1: overall risk factors.

    Science.gov (United States)

    Elmoslemany, A M; Keefe, G P; Dohoo, I R; Jayarao, B M

    2009-06-01

    The objective of this study was to determine on-farm risk factors for bacteriological quality of bulk tank milk. Bulk tank raw milk quality was evaluated on all Prince Edward Island dairy herds (n = 235) over a 2-yr period (March 2005 to March 2007). Biweekly total bacterial, preliminary incubation, laboratory pasteurization, and coliform counts were conducted using a Petrifilm culture system. For the assessment of risk factors, a case-control study was conducted from January 2006 to May 2007. Case and control herds were defined based on the last 6 analyses of bulk tank bacterial counts before on-farm evaluation. Cases were herds that had multiple elevated counts for any of the parameters measured. A total of 69 herds (39 cases and 30 control herds) were evaluated. Data collection included 1) observation and questionnaire on basic hygiene and farm management practices; 2) complete wash analysis of the milking equipment, monitoring the presence of bacterial films on equipment and evaluation of cooling system function; and 3) environmental and cow hygiene scoring. Data were analyzed using multivariable logistic regression. The results of the final model indicated that high alkalinity in the wash water and poor teat-end cleanliness were associated with high bacterial counts in bulk tank milk (odds ratios = 12 and 5.3, respectively). It was also observed that high water temperature of detergent wash and the use of a water softener were associated with low bacterial counts in bulk tank milk (odds ratios = 0.87 and 0.11, respectively). A significant association between udder hair clipping and teat-end cleanliness was also observed. In conclusion, this study highlights the importance of udder hygiene and milking system washing factors on hygienic quality of bulk tank milk.

  16. Factors affecting the quality of cardiopulmonary resuscitation in inpatient units: perception of nurses

    Directory of Open Access Journals (Sweden)

    Clairton Marcos Citolino Filho

    2015-12-01

    Full Text Available Abstract OBJECTIVE To identify, in the perception of nurses, the factors that affect the quality of cardiopulmonary resuscitation (CPR in adult inpatient units, and investigate the influence of both work shifts and professional experience length of time in the perception of these factors. METHOD A descriptive, exploratory study conducted at a hospital specialized in cardiology and pneumology with the application of a questionnaire to 49 nurses working in inpatient units. RESULTS The majority of nurses reported that the high number of professionals in the scenario (75.5%, the lack of harmony (77.6% or stress of any member of staff (67.3%, lack of material and/or equipment failure (57.1%, lack of familiarity with the emergency trolleys (98.0% and presence of family members at the beginning of the cardiopulmonary arrest assistance (57.1% are factors that adversely affect the quality of care provided during CPR. Professional experience length of time and the shift of nurses did not influence the perception of these factors. CONCLUSION The identification of factors that affect the quality of CPR in the perception of nurses serves as parameter to implement improvements and training of the staff working in inpatient units.

  17. Quality of Life and Its Related Factors Among Elderly With Diabetes

    Directory of Open Access Journals (Sweden)

    Vahidreza Borhaninejad

    2016-04-01

    Conclusion: In our society, no normative standard has been set for the “quality of life.” However, the mean value of 50 with standard deviation of 10 can be an acceptable and standard score for the “quality of life” among the elderly. The mean score of “quality of life” among diabetic elderly people in this study was 46.48 which was lower than our standard. Also, in studying the 8 dimensions of “quality of life,” the mean score of all dimensions was lower than 50. Prevalence of chronic diseases like diabetes among the older people could end in lowering the mean score of physical dimensions as compared to mental dimensions of “quality of life.” Something that was mentioned in the present study, too.The lower quality of life among women could be due to gender inequality in using health system. As a result, the women are more vulnerable to problems as well as mental and physical diseases which decreases their quality of lives. There was a significant relationship between the educational level of diabetic older people and their quality of lives. Those with higher educational level enjoyed a better quality of life. The effect of higher education on the “quality of life” could be due to the people’sawareness of the importance of diet, exercise, proper medication, and control of risk factors of chronic diseases like diabetes. Furthermore,he higher education could increase quality of life through promotion of social class, increasing income, and self-esteem. Also, the people with higher education, armed with their health knowledge and using self-care methods provide the grounds for increasing their quality of lives.As regards the increasing rate of diabetic patients in ageing population and considering that chronic diseases affect and lower physical and mental aspects of “quality of life” in older people, and in line with improving the “quality of life” in these people, we suggest that policymakers and authorities pay

  18. The risk factors and quality of life in children with allergic rhinitis in relation to seasonal attack patterns.

    Science.gov (United States)

    Chen, Bing-Yu; Chan, Chang-Chuan; Han, Yueh-Ying; Wu, Hung-Pin; Guo, Yue Leon

    2012-03-01

    A questionnaire survey was conducted to examine whether risk factors and allergic rhinitis (AR)-related quality of life (QOL) were different among children with different seasonal patterns of AR. Participants were students enrolled in elementary and middle schools in Taipei County, Taiwan. Using moving average and principal component analysis, children with current AR were grouped by attack seasons. The effects of personal and environmental factors on AR seasonality were assessed by logistic regression models. AR severity and AR-related QOL were compared within AR seasonal subtypes. Among 4221 children who completed the questionnaire, 1144 and 1605 children were current AR cases and healthy controls, respectively. Four AR subtypes were categorised as follows: perennial, spring, summer/fall, and winter. Age, gender, parental education, maternal passive smoking during pregnancy, breast feeding, and mouldy walls were found to contribute differentially to different AR subtypes. Children suffering from perennial and winter AR were found to have more severe symptoms and significantly lower QOL score compared with other subtypes. Specific personal and environmental risk factors could contribute to different AR seasonal subtypes. Active allergen avoidance and symptomatic treatment should be the focus of management aiming to improve the QOL among children with perennial and winter subtype. © 2011 Blackwell Publishing Ltd.

  19. Quality planning in Construction Project

    Science.gov (United States)

    Othman, I.; Shafiq, Nasir; Nuruddin, M. F.

    2017-12-01

    The purpose of this paper is to investigate deeper on the factors that contribute to the effectiveness of quality planning, identifying the common problems encountered in quality planning, practices and ways for improvements in quality planning for construction projects. This paper involves data collected from construction company representatives across Malaysia that are obtained through semi-structured interviews as well as questionnaire distributions. Results shows that design of experiments (average index: 4.61), inspection (average index: 4.45) and quality audit as well as other methods (average index: 4.26) rank first, second and third most important factors respectively.

  20. High quality factor surface Fabry-Perot cavity of acoustic waves

    Science.gov (United States)

    Xu, Yuntao; Fu, Wei; Zou, Chang-ling; Shen, Zhen; Tang, Hong X.

    2018-02-01

    Surface acoustic wave (SAW) resonators are critical components in wireless communications and many sensing applications. They have also recently emerged as a subject of study in quantum acoustics at the single phonon level. Acoustic loss reduction and mode confinement are key performance factors in SAW resonators. Here, we report the design and experimental realization of high quality factor Fabry-Perot SAW resonators formed in between the tapered phononic crystal mirrors patterned on a GaN-on-sapphire material platform. The fabricated SAW resonators are characterized by both an electrical network analyzer and an optical heterodyne vibrometer. We observed standing Rayleigh waves inside the cavity, with an intrinsic quality factor exceeding 1.3 × 104 at ambient conditions.

  1. Controlling the quality factor of a tuning-fork resonance between 9 and 300 K for scanning-probe microscopy

    Energy Technology Data Exchange (ETDEWEB)

    Ctistis, G; Frater, E H; Huisman, S R; Korterik, J P; Herek, J L; Vos, W L; Pinkse, P W H, E-mail: g.ctistis@utwente.nl, E-mail: P.W.H.Pinkse@utwente.nl [MESA Institute for Nanotechnology, University of Twente, 7500 AE Enschede (Netherlands)

    2011-09-21

    We study the dynamic response of a mechanical quartz tuning fork in the temperature range from 9 to 300 K. Since the quality factor Q of the resonance strongly depends on temperature, we implement a procedure to control the quality factor of the resonance. We show that we are able to dynamically change the quality factor and keep it constant over the whole temperature range. This procedure is suitable for applications in scanning-probe microscopy.

  2. Empirical investigation to explore factors that achieve high quality of mobile learning system based on students’ perspectives

    Directory of Open Access Journals (Sweden)

    Mohammed Amin Almaiah

    2016-09-01

    Full Text Available This study presents three frameworks for mobile learning system based on quality factors derived from the updated DeLone and McLean information system success model. This study used the questionnaire as a quantitative method to explore quality factors for mobile learning system based on perspectives of 392 students. This study opens future work for using the identified quality factors as guidelines for researchers and designers to design and develop mobile learning applications.

  3. Nutritional and Hygienic Quality of Raw Milk in the Mid-Northern Region of Algeria: Correlations and Risk Factors

    Directory of Open Access Journals (Sweden)

    Soumeya Adjlane-Kaouche

    2014-01-01

    Full Text Available This paper aims to study the overall quality of raw milk in the mid-northern region of Algeria. The analysis results showed a decrease in the average temperature for the delivery of 1,54°C with P0.05 was observed in almost all the physical and nutritional parameters studied (pH, fat content, and protein content between M1 and M2. The average contamination by total mesophilic aerobic bacteria (TMAB, coliforms, yeasts, molds, and different pathogens in samples taken at M1 showed significant changes at M2. This was confirmed by the decrease of reduction time of methylene blue (RTMB, about 54%. The variation was described as follows: (P>0.05 for yeasts and (P<0.05 for molds in M1 and M2, (P<0.05 for TMAB in M1, and (P<0.001 for TC, FC, and TMAB in M2. The analysis for the detection of Salmonella spp. showed no contamination in all samples tested, while antibiotic residues were detected in 35% of milks delivered. In conclusion, several risk factors have been identified in this study, namely, the effect of the season and the distance between the farm and the dairy unit.

  4. Climatic factors directly impact the volatile organic compound fingerprint in green Arabica coffee bean as well as coffee beverage quality.

    Science.gov (United States)

    Bertrand, B; Boulanger, R; Dussert, S; Ribeyre, F; Berthiot, L; Descroix, F; Joët, T

    2012-12-15

    Coffee grown at high elevations fetches a better price than that grown in lowland regions. This study was aimed at determining whether climatic conditions during bean development affected sensory perception of the coffee beverage and combinations of volatile compounds in green coffee. Green coffee samples from 16 plots representative of the broad range of climatic variations in Réunion Island were compared by sensory analysis. Volatiles were extracted by solid phase micro-extraction and the volatile compounds were analysed by GC-MS. The results revealed that, among the climatic factors, the mean air temperature during seed development greatly influenced the sensory profile. Positive quality attributes such as acidity, fruity character and flavour quality were correlated and typical of coffees produced at cool climates. Two volatile compounds (ethanal and acetone) were identified as indicators of these cool temperatures. Among detected volatiles, most of the alcohols, aldehydes, hydrocarbons and ketones appeared to be positively linked to elevated temperatures and high solar radiation, while the sensory profiles displayed major defects (i.e. green, earthy flavour). Two alcohols (butan-1,3-diol and butan-2,3-diol) were closely correlated with a reduction in aromatic quality, acidity and an increase in earthy and green flavours. We assumed that high temperatures induce accumulation of these compounds in green coffee, and would be detected as off-flavours, even after roasting. Climate change, which generally involves a substantial increase in average temperatures in mountainous tropical regions, could be expected to have a negative impact on coffee quality. Copyright © 2012 Elsevier Ltd. All rights reserved.

  5. Aperture averaging in strong oceanic turbulence

    Science.gov (United States)

    Gökçe, Muhsin Caner; Baykal, Yahya

    2018-04-01

    Receiver aperture averaging technique is employed in underwater wireless optical communication (UWOC) systems to mitigate the effects of oceanic turbulence, thus to improve the system performance. The irradiance flux variance is a measure of the intensity fluctuations on a lens of the receiver aperture. Using the modified Rytov theory which uses the small-scale and large-scale spatial filters, and our previously presented expression that shows the atmospheric structure constant in terms of oceanic turbulence parameters, we evaluate the irradiance flux variance and the aperture averaging factor of a spherical wave in strong oceanic turbulence. Irradiance flux variance variations are examined versus the oceanic turbulence parameters and the receiver aperture diameter are examined in strong oceanic turbulence. Also, the effect of the receiver aperture diameter on the aperture averaging factor is presented in strong oceanic turbulence.

  6. Convergence of multiple ergodic averages

    OpenAIRE

    Host, Bernard

    2006-01-01

    These notes are based on a course for a general audience given at the Centro de Modeliamento Matem\\'atico of the University of Chile, in December 2004. We study the mean convergence of multiple ergodic averages, that is, averages of a product of functions taken at different times. We also describe the relations between this area of ergodic theory and some classical and some recent results in additive number theory.

  7. Understanding critical factors for the quality and shelf-life of MAP fresh meat: a review.

    Science.gov (United States)

    Singh, Preeti; Wani, Ali Abas; Saengerlaub, Sven; Langowski, Horst-Christian

    2011-02-01

    Due to increased demands for greater stringency in relation to hygiene and safety issues associated with fresh food products, coupled with ever-increasing demands by retailers for cost-effective extensions to product shelf-lives and the requirement to meet consumer expectations in relation to convenience and quality, the food packaging industry has rapidly developed to meet and satisfy expectations. One of the areas of research that has shown promise, and had success, is modified atmosphere packaging (MAP). The success of MAP-fresh meat depends on many factors including good initial product quality, good hygiene from the source plants, correct packaging material selection, the appropriate gas mix for the product, reliable packaging equipment, and maintenance of controlled temperatures and humidity levels. Advances in plastic materials and equipment have propelled advances in MAP, but other technological and logistical considerations are needed for successful MAP systems for raw chilled meat. Although several parameters critical for the quality of MA packed meat have been studied and each found to be crucial, understanding of the interactions between the parameters is needed. This review was undertaken to present the most comprehensive and current overview of the widely available, scattered information about the various integrated critical factors responsible for the quality and shelf life of MA packed meat with an interest to stimulate further research to optimize different quality parameters.

  8. Economic cost analysis of service quality as a factor of sustainable development of enterprises

    Directory of Open Access Journals (Sweden)

    Gritsenko Olena Ivanivna

    2015-02-01

    Full Text Available In the article possibilities of economic analysis are considered in the context of improvement of quality of service and effective realization of the charges related to him. The analysis of existent principles of theory of cognition is conducted, that directly related to the economic analysis of quality. The basic factors of forming and improvement of functioning of quality of service for providing of competitiveness subjects of ménage are considered at the market of commodities in the state and after his limits. There were determined the main factors, which affect the sum and level of spending on quality of service. It is well-proven that charges on quality of service are a difficult economic category, and the mainly existent methods of account and accounting do not allow directly and exactly to select such charges of enterprise structures. It is for this purpose necessary to conduct the concrete and detailed (empiric analysis of structure of charges and its elements.

  9. Factors associated with the quality of patients' surgical decisions for treatment of hip and knee osteoarthritis.

    Science.gov (United States)

    Sepucha, Karen; Feibelmann, Sandra; Chang, Yuchiao; Clay, Catharine F; Kearing, Stephen A; Tomek, Ivan; Yang, Theresa; Katz, Jeffrey N

    2013-10-01

    Shared decision making requires informing patients and ensuring that treatment decisions reflect their goals. It is not clear to what extent this happens for patients considering total joint replacement (TJR) for hip or knee osteoarthritis. We conducted a cross-sectional mail survey of osteoarthritis patients at 4 sites, who made a decision about TJR. The survey measured knowledge and goals, the decision making process, decision confidence, and decision regret. Decision quality was defined as the percentage of patients who had high knowledge scores and received treatments that matched their goals. Multivariable regression models examined factors associated with knowledge and decision quality. There were 382 patients who participated (78.6% response rate). Mean knowledge score was 61% (SD 20.7%). In multivariate linear regression, higher education, having TJR, and site were associated with higher knowledge. Many patients (73%) received treatments that matched their goals. Thirty-one percent of patients met our definition for high decision quality. Higher decision making process scores, higher quality of life scores, and site were associated with higher decision quality. Patients who had high decision quality had less regret (73.1% vs 58.5%, p = 0.007) and greater confidence (9.0 [SD 1.6] vs 8.2 [SD 2.3] out of 10, p osteoarthritis treatment met both criteria for a high quality decision. Controlling for treatment, patients reporting more involvement in the decision making process, higher quality of life, and being seen at a site that uses decision aids were associated with higher decision quality. Copyright © 2013 American College of Surgeons. Published by Elsevier Inc. All rights reserved.

  10. Study of motivational factors in doctors in respect of healthcare quality improvement.

    Science.gov (United States)

    Smiianov, Vladyslav A; Smiianova, Olga I; Gruzieva, Tetiana S; Vygivska, Liudmyla; Rudenko, Lesia A

    The article presents the results of a survey among doctors with different certification categories and experience who work at inpatient and outpatient departments of Sumy healthcare institutions, in respect of the main factors that motivate them to provide quality healthcare. The aim of the study is to identify the factors that may be used as motivators to improve healthcare quality in terms of medical staff in order to ensure system construction of motivational component of healthcare quality management ("incentive picture"). We conducted a survey among physicians working at inpatient and outpatient departments. A total of 167 respondents were interviewed. The obtained results were processed using OCA-program. We have found an association between the salary level and certification category of a physician. Despite heavy workload, most doctors were willing to work harder and better for some additional payment. Even though financial satisfaction was low, most doctors did not agree to change their profession for a more payable one. The study revealed that, in doctors' opinion, the introduction of incentive system in healthcare institutions was necessary to provide quality healthcare. Regardless of length of service and workplace, two of the main motivational factors for doctors were moral satisfaction from work and respect of people.

  11. The relationship between risk factors for falling and the quality of life in older adults

    Directory of Open Access Journals (Sweden)

    Ozdirenc Mehtap

    2005-08-01

    Full Text Available Abstract Background Falls are one of the major health problems that effect the quality of life among older adults. The aim of this study was to explore the relationship between quality of life (Short Form-12 and the risk factors of falls (balance, functional mobility, proprioception, muscle strength, flexibility and fear of falling in older adults. Methods One hundred sixteen people aged 65 or older and living in the T.C. Emekli Sandigi Narlidere nursing home participated in the study. Balance (Berg Balance test, functional mobility (Timed Up and Go, proprioception (joint position sense, muscle strength (back/leg dynamometer, flexibility (sit and reach and fear of falling (Visual Analogue Scale were assessed as risk factors for falls. The quality of life was measured by Short Form-12 (SF-12. Results A strong positive correlation was observed between Physical Health Component Summary of SF-12, General Health Perception and balance, muscle strength. Proprioception and flexibility did not correlated with SF-12 (p > 0.05. There was negative correlation between Physical Health Component Summary of SF-12, General Health Perception and fear of falling, functional mobility (p Conclusion We concluded that the risk factors for falls (balance, functional mobility, muscle strength, fear of falling in older adults are associated with quality of life while flexibility and proprioception are not.

  12. Assessment of the effect of quality factors on the assortment structure in poplar plantations

    Directory of Open Access Journals (Sweden)

    Danilović Milorad

    2008-01-01

    Full Text Available Quality factors affecting the assortment quality structure in poplar plantations were researched on nine temporary sample plots in the period 1997-2004, from the aspect of the implementation of roundwood standards. Sample plots were selected depending on the factors, the effect of which was studied. The following factors were researched: clonal species, planting pattern, flood risk, pruning of branches, plantation position and age. The study was performed by the original methodology. Based on the study results, it is concluded that knots have the highest effect on the assortment quality structure in poplar plantations, regardless of the site and stand conditions. Their effect rises significantly with the increase of tree diameter. Also, the analyses show that the number of large and rotten knots on the tree trunk increases considerably with the older age. In the flooded area, the sweep of the lower part of the stem is more intensive and multiple curvatures are frequent on the trees growing immediately along the river, whereas curvature decreases with the distance from the river bank. Based on the study results, it is concluded that the percentage of best quality assortments is considerably reduced by the above wood defects.

  13. Proteomic Assessment of the Relevant Factors Affecting Pork Meat Quality Associated with Muscles in Duroc Pigs

    Directory of Open Access Journals (Sweden)

    Jin Hyoung Cho

    2016-11-01

    Full Text Available Meat quality is a complex trait influenced by many factors, including genetics, nutrition, feeding environment, animal handling, and their interactions. To elucidate relevant factors affecting pork quality associated with oxidative stress and muscle development, we analyzed protein expression in high quality longissimus dorsi muscles (HQLD and low quality longissimus dorsi muscles (LQLD from Duroc pigs by liquid chromatographytandem mass spectrometry (LC-MS/MS–based proteomic analysis. Between HQLD (n = 20 and LQLD (n = 20 Duroc pigs, 24 differentially expressed proteins were identified by LC-MS/MS. A total of 10 and 14 proteins were highly expressed in HQLD and LQLD, respectively. The 24 proteins have putative functions in the following seven categories: catalytic activity (31%, ATPase activity (19%, oxidoreductase activity (13%, cytoskeletal protein binding (13%, actin binding (12%, calcium ion binding (6%, and structural constituent of muscle (6%. Silver-stained image analysis revealed significant differential expression of lactate dehydrogenase A (LDHA between HQLD and LQLD Duroc pigs. LDHA was subjected to in vitro study of myogenesis under oxidative stress conditions and LDH activity assay to verification its role in oxidative stress. No significant difference of mRNA expression level of LDHA was found between normal and oxidative stress condition. However, LDH activity was significantly higher under oxidative stress condition than at normal condition using in vitro model of myogenesis. The highly expressed LDHA was positively correlated with LQLD. Moreover, LDHA activity increased by oxidative stress was reduced by antioxidant resveratrol. This paper emphasizes the importance of differential expression patterns of proteins and their interaction for the development of meat quality traits. Our proteome data provides valuable information on important factors which might aid in the regulation of muscle development and the improvement of

  14. Analysis of quality of life and influencing factors in 197 Chinese patients with port-wine stains.

    Science.gov (United States)

    Wang, Juan; Zhu, Yu-You; Wang, Zhong-Ying; Yao, Xiu-Hua; Zhang, Lan-Fang; Lv, Hong; Zhang, Si-Ping; Hu, Bai

    2017-12-01

    Port-wine stains (PWS) are congenital capillary malformations, usually occurring on the face, neck, and other exposed parts of the skin, that have serious psychological and social impact on the patient. Most researchers focus on the treatment of PWS, but the quality of life (QoL) of PWS patients is seldom researched. The objective of this study is to evaluate the QoL of patients with PWS on exposed parts and explore the factors influencing the QoL of PWS patients. The QoL of 197 cases with PWS on exposed parts were prospectively studied using the Dermatology Life Quality Index questionnaire (DLQI), and the factors influencing the patients' QoL were analyzed by single-factor analysis and multiple-factor logistic regression analysis. The reliability and validity of the QoL of PWS patients were then assessed by DLQI. A total of 197 valid questionnaires were collected. The DLQI scores in PWS cases ranged from 2 to 16, with 2 to 5 in 52.29% (103/197), 6 to 10 in 42.13% (83/197), and 11 to 20 in 5.58% (11/197). The main score elements of the DLQI focused on symptoms and feelings, daily activities, and social entertainment. Single-factor analysis and multiple-factor logistic regression analysis showed that the main influencing factors were female sex, skin hypertrophy, and lesion area >30 cm. The inter-item correlation averaged 47.46% and the Cronbach α was 0.740, indicating high internal consistency. Correlation of the 6 dimensions of the DLQI questionnaires with the total scores showed that the Spearman correlation coefficient r ranged from 0.550 to 0.782 (P < .001), with symptoms and feelings having a correlation coefficient of 0.782 and a high correlation with total scores. This study shows that PWS has mild to moderate influence on the QoL of most patients, mainly on daily activities, social entertainment, and feelings. Copyright © 2017 The Authors. Published by Wolters Kluwer Health, Inc. All rights reserved.

  15. Factors associated with changes in quality of life of COPD patients: a prospective study in primary care.

    Science.gov (United States)

    Monteagudo, Mònica; Rodríguez-Blanco, Teresa; Llagostera, Maria; Valero, Carles; Bayona, Xavier; Ferrer, Montserrat; Miravitlles, Marc

    2013-10-01

    A primary objective in the treatment of patients with chronic obstructive pulmonary disease (COPD) is to improve their health status. To identify the factors associated with changes in health-related quality of life (HRQoL) in patients with COPD after one year of follow-up in primary care. Multicenter, prospective study with one year of follow-up. The end-point was the change in total score on the Saint George's Respiratory Questionnaire (SGRQ). Patients with a clinically relevant (>4 points) decrease or increase in SGRQ total score were compared. Factors associated with the changes in HRQoL observed after one year were determined by logistic regression analysis. A total of 791 patients (mean age, 70.2 years) were analyzed. Mean FEV1 (% predicted) was 52.4%. Average total SGQR score was 37.1 (SD = 19.1) at baseline and 35.6 (SD = 18.9) at follow-up. Significantly improved HRQoL was observed in 36.7% of patients, and was associated with starting polymedication, pulmonology visits, and balanced diet; ending respiratory rehabilitation, quitting smoking; and not being a frequent exacerbator. Quality of life worsened significantly in 29.2% of patients, and was associated with worsening respiratory symptoms and increased hospital admissions. Although overall changes in HRQoL observed after one year were minimal, more than one third of patients improved significantly, and one third had significantly worse HRQoL. Clinical factors were independently associated with these changes, emphasizing the relevance to improved HRQoL of starting a healthy lifestyle and respiratory treatments and the negative impact on HRQoL of COPD symptoms onset and admissions. Copyright © 2013 Elsevier Ltd. All rights reserved.

  16. Society demands for the quality of education as a factor of modern education space forming

    Directory of Open Access Journals (Sweden)

    Ivanova Svetlana V.

    2016-01-01

    Full Text Available The authors research the problems of increasing in modern conditions society demands for qualitative characteristics of education services. The quality of education is considered as one of the determining factors of forming educational space. The paper analyzes the influence of social and economic conditions inherent in the post-industrial era on forming and transforming of education space at the modern stage of society development, shows the ways to overcome emerging contradictions. The authors pay special attention to the significance of project approach in solving the problems of improving education quality.

  17. Confirmatory factor analysis of the thyroid-related quality of life questionnaire ThyPRO

    DEFF Research Database (Denmark)

    Grønvold, Mogens; Deng, N; Gandek, B

    2014-01-01

    Background and aimThyroid diseases are prevalent and chronic. With treatment, quality of life is restored in most, but not all patients. Construct validity of the thyroid-related quality of life questionnaire, ThyPRO, has been established by multi-trait scaling, but not evaluated with more...... (4 scales) and mental (2 scales) symptoms, function and well-being (3 scales) and participation/social function (4 scales). The data were collected from a cross-sectional sample of 907 thyroid patients. One-factor confirmatory models were fitted to each scale, and evaluated by model fit statistics...

  18. THE ACADEMIC PERSONNEL MOTIVATION - A FACTOR FOR HIGH QUALITY EDUCATIONAL PRODUCT

    Directory of Open Access Journals (Sweden)

    Viara Slavianska

    2014-06-01

    Full Text Available The present paper consecutively puts an accent on 1 the quality of higher education as a national priority, 2 the qualification and motivation of the academic staff as factors for offering an educational product of high quality, 3 the strategies, policies and practices for motivating the academic personnel. The necessity of education improvement is adduced, the strategies and politics in the field of academic personnel training are presented, and the possible effects from a wrong approach to employees’ motivation in academic environment are commented.

  19. Preliminary results of the average glandular dose to the breast with TLDS measure is computed as the conversion factors; Resultados preliminares da dose glandular media na mama medida com TLDS e calculada atraves de fatores de conversao

    Energy Technology Data Exchange (ETDEWEB)

    Sardo, Luiz T.L.; Almeida, Claudio D.; Coutinho, Celia M.C., E-mail: ltsardo@yahoo.com.br, E-mail: claudio@ird.gov.br, E-mail: celia@ird.gov.br [Instituto de Radioprotecao e Dosimetria (IRD/CNEN-RJ), Rio de Janeiro, RJ (Brazil)

    2013-07-01

    At mammography exams there is a risk of a breast cancer induced from the absorbed dose by the glandular tissue. According to the National Institute of Cancer, INCA, breast cancer is the second type most frequent in the world and the most common among women, therefore the necessity of monitoring the mean glandular dose, D{sub G}. Measuring methods of D{sub G} were established by some authors. Among the established methods the method of Dance is one of the most known. In this study was utilized a measurement method realized with TL dosimeters inserted in a breast tissue equivalent phantom, BTE, with 46% of glandularity and exposed using Mo/Mo and Mo/Rh target/filter combination and 28kV. To ensure this measurement method the results were compared with a calculation method, used by Dance, of D{sub G} from the measurement of incident air kerma, K{sub i}, and conversion factors to consider mainly the beam quality, the compressed thickness and the glandularity of the breast. The results of the comparison of the D{sub G} measurement with the obtained dose by the method of Dance demonstrated that for the thickness of 4.0 and 6.0 cm the doses were consistent. For the thickness of 5.0 cm the difference was higher, indicating that the glandularity may influence, suggesting further investigation. (author)

  20. Interactions among Ecological Factors That Explain the Psychosocial Quality of Life of Children with Complex Needs

    Directory of Open Access Journals (Sweden)

    Sandy Thurston

    2010-01-01

    Full Text Available Purpose. To explore the associations and interactions among ecological factors and explain the psychosocial quality of life of children with complex needs. Methods. In this cross-sectional survey consenting parents were identified by the Children's Treatment Network. Families were eligible if the child from 0 to 19 years, resided in Simcoe/York, and there were multiple family needs. Regression analysis was used to explore associations and interactions. n=429. Results. Younger children, without conduct disorder, without hostile and punitive parenting and with low adverse family impact demonstrated the highest levels of psychosocial quality of life. Statistically significant interactions between processes of care and parent variables highlight the complexity of real life situations. Conclusions. It is not possible to fully understand the child's psychosocial quality of life in complex needs families by considering only simple associations between ecological factors. A multitude of factors and interactions between these factors are simultaneously present and the care of these families requires a holistic approach.

  1. The factor harmful to the quality of human life--shift-work.

    Science.gov (United States)

    Strzemecka, Joanna; Pencuła, Marcin; Owoc, Alfred; Szot, Wojciech; Strzemecka, Ewa; Jabłoński, Mirosław; Bojar, Iwona

    2013-01-01

    The system of human activity, which is established by genetics and regulated by outer and inner factors, is associated with many characteristics which maintain the body in the best condition and ensure appropriate life quality. To evaluate of life quality among male shift-workers. Research based on a self-devised questionnaire, conducted among 700 shift-workers, followed by statistical analysis of the results. Nearly a half of respondents (43.00%) reported that shift-work influences the quality of their family life. Remarkably, such an opinion was often stated by people with children (46.01%) pwork negatively influence their sexual life (31.14%). It was shown that shift-work negatively influences the respondents' life quality in the form of deterioration of the quality of family life; the respondents, regardless of marital status, age and having children, most often complained about the lack of contact with the family and irregular eating with them; negative influence on sexual life, which was the case in one-third of respondents. In order to encourage healthy behaviour and increase the quality of life of people performing shift-work, training and programmes should be introduced. These would help shift- workers to adjust their work time to their family and social life.

  2. Quality of carrots as affected by pre- and postharvest factors and processing.

    Science.gov (United States)

    Seljåsen, Randi; Kristensen, Hanne L; Lauridsen, Charlotte; Wyss, Gabriela S; Kretzschmar, Ursula; Birlouez-Aragone, Inès; Kahl, Johannes

    2013-08-30

    The aim of this review is to provide an update on factors contributing to quality of carrots, with special focus on the role of pre- and postharvest factors and processing. The genetic factor shows the highest impact on quality variables in carrots, causing a 7-11-fold difference between varieties in content of terpenes, β-carotene, magnesium, iron and phenolics as well as a 1-4-fold difference in falcarindiol, bitter taste and sweet taste. Climate-related factors may cause a difference of up to 20-fold for terpenes, 82% for total sugars and 30-40% for β-carotene, sweet taste and bitter taste. Organic farming in comparison with conventional farming has shown 70% higher levels for magnesium and 10% for iron. Low nitrogen fertilisation level may cause up to 100% increase in terpene content, minor increase in dry matter (+4 to +6%) and magnesium (+8%) and reduction in β-carotene content (-8 to -11%). Retail storage at room temperature causes the highest reduction in β-carotene (-70%) and ascorbic acid (-70%). Heat processing by boiling reduces shear force (-300 to -1000%) and crispiness (-67%) as well as content of phenolics (-150%), terpenes (-85%) and total carotenes (-20%) and increases the risk of furan accumulation. Sensory and chemical quality parameters of carrots are determined mainly by genetic and climate-related factors and to a minor extent by cultivation method. Retail temperature and storage atmosphere as well as heating procedure in processing have the highest impact in quality reduction. © 2013 Society of Chemical Industry.

  3. Analysis of the covariance function and aperture averaged fluctuations of irradiance to calculate Cn2

    Science.gov (United States)

    Cauble, Galen D.; Wayne, David T.

    2017-09-01

    The growth of optical communication has created a need to correctly characterize the atmospheric channel. Atmospheric turbulence along a given channel can drastically affect optical communication signal quality. One means of characterizing atmospheric turbulence is through measurement of the refractive index structure parameter, Cn2. When calculating Cn2 from the scintillation index, σΙ2,the point aperture scintillation index is required. Direct measurement of the point aperture scintillation index is difficult at long ranges due to the light collecting abilities of small apertures. When aperture size is increased past the atmospheric correlation width, aperture averaging decreases the scintillation index below that of the point aperture scintillation index. While the aperture averaging factor can be calculated from theory, it does not often agree with experimental results. Direct measurement of the aperture averaging factor via the pupil plane irradiance covariance function allows conversion from the aperture averaged scintillation index to the point aperture scintillation index. Using a finite aperture, camera, and detector, the aperture averaged scintillation index and aperture averaging factor are measured in parallel and the point aperture scintillation index is calculated. A new instrument built by SSC Pacific was used to collect scintillation data at the Townes Institute Science and Technology Experimentation Facility (TISTEF). This new instrument's data was then compared to BLS900 data. The results show that direct measurement of the aperture averaging factor is achievable using a camera and matches well with groundtruth instrumentation.

  4. Olive (Olea europaea L.) tree nitrogen status is a key factor for olive oil quality.

    Science.gov (United States)

    Erel, Ran; Kerem, Zohar; Ben-Gal, Alon; Dag, Arnon; Schwartz, Amnon; Zipori, Isaac; Basheer, Loai; Yermiyahu, Uri

    2013-11-27

    The influence of macronutrient status on olive oil properties was studied for three years. Data were analyzed by a multivariate model considering N, P, K, and fruiting year as explanatory factors. Oil quality parameters were primarily associated with N concentration in leaves and fruits which increased with N in irrigation solution. The effect of P on oil quality was mainly indirect since increased P availability increased N accumulation. The potassium level had negligible effects. The oil phenolic content decreased linearly as a function of increased leaf N, indicating protein-phenol competition in leaves. The overall saturation level of the fatty acids decreased with fruit N, resulting in increased polyunsaturated fatty acids. Free fatty acids increased with increased levels of fruit N. High fruit load tended to reduce fruit N and subsequently improve oil quality. The effect of N on oil properties depended solely on its concentration in leaves or fruits, regardless of the cause.

  5. Ergodic averages via dominating processes

    DEFF Research Database (Denmark)

    Møller, Jesper; Mengersen, Kerrie

    2006-01-01

    We show how the mean of a monotone function (defined on a state space equipped with a partial ordering) can be estimated, using ergodic averages calculated from upper and lower dominating processes of a stationary irreducible Markov chain. In particular, we do not need to simulate the stationary...... Markov chain and we eliminate the problem of whether an appropriate burn-in is determined or not. Moreover, when a central limit theorem applies, we show how confidence intervals for the mean can be estimated by bounding the asymptotic variance of the ergodic average based on the equilibrium chain....

  6. Evaluation of the Menopause-Specific Quality of Life Questionnaire: a factor-analytic approach.

    Science.gov (United States)

    Van Dole, Kristen B; DeVellis, Robert F; Brown, Rebekkah D; Funk, Michele L Jonsson; Gaynes, Bradley N; Williams, Rachel E

    2012-02-01

    Despite being used in multiple studies, the Menopause-Specific Quality of Life Questionnaire (MENQOL) has not been assessed with factor analysis, a common method of item reduction in quality of life tools. The Menopause Epidemiology Study is a cross-sectional population-based study of women 40 to 65 years old in the United States chosen from a source population selected by random digit dialing and probability sampling. We focused on 2,703 postmenopausal women for our analyses. Before analysis and to prevent model overfitting, we split our sample into two equal groups using a uniform random sample. Using parallel analysis for factor extraction, we performed confirmatory factor analysis on the MENQOL to examine the current factor structure and to evaluate the efficiency of the items in the existing tool. Reliability coefficients (Cronbach α) were calculated for each of the domains. With few exceptions, the items from the original MENQOL factored into the domains under which they were originally placed. Using this method, five items did not add significant statistical value to the scoring of the domains: difficulty sleeping; poor memory; accomplishing less than I used to; changes in appearance, texture, or tone of my skin; and feeling tired. Reliability coefficients for the four original domains were acceptable: vasomotor, 0.87; psychosocial, 0.85; physical, 0.88; and sexual, 0.77. Results from factor analysis indicate that although the MENQOL was developed more than 15 years ago, the strength of the items is still highly valuable today in the assessment of women's menopause-related quality of life.

  7. Hybrid Active-Passive Microwave Photonic Filter with High Quality Factor

    International Nuclear Information System (INIS)

    En-Ming, Xu; Xin-Liang, Zhang; Li-Na, Zhou; Yu, Zhang; De-Xiu, Huang

    2009-01-01

    A hybrid high quality factor (Q-factor) microwave photonic filter with a cascaded active filter and a passive filter is presented and experimentally demonstrated. The active infinite impulse response filter is realized by a recirculating delay line loop with a semiconductor optical amplifier, and a much narrower 3 dB bandwidth of response peaks can be achieved. A passive finite impulse response filter is realized by an unbalance Mach–Zehnder interferometer, and it is cascaded to select the desired filter frequencies and to suppress the intermediate peaks. Compared with the purely active filter scheme, the free spectrum range and the Q-factor of the hybrid structure can be doubled. Stable operation and a high Q-factor of 362 are experimentally demonstrated

  8. Measurement of mechanical quality factors of polymers in flexural vibration for high-power ultrasonic application.

    Science.gov (United States)

    Wu, Jiang; Mizuno, Yosuke; Tabaru, Marie; Nakamura, Kentaro

    2016-07-01

    A method for measuring the mechanical quality factor (Q factor) of materials in large-amplitude flexural vibrations was devised on the basis of the original definition of the Q factor. The Q factor, the ratio of the reactive energy to the dissipated energy, was calculated from the vibration velocity distribution. The bar thickness was selected considering the effect of the thickness on the estimation error. In the experimental setup, a 1-mm-thick polymer-based bar was used as a sample and fixed on the top of a longitudinal transducer. Using transducers of different lengths, flexural waves in the frequency range of 20-90kHz were generated on the bar. The vibration strain in the experiment reached 0.06%. According to the Bernoulli-Euler model, the reactive energy and dissipated energy were estimated from the vertical velocity distribution on the bar, and the Q factors were measured as the driving frequency and strain were varied. The experimental results showed that the Q factors decrease as the driving frequencies and strains increase. At a frequency of 28.30kHz, the Q factor of poly(phenylene sulfide) (PPS) reached approximately 460 when the strain was smaller than 0.005%. PPS exhibited a much higher Q factor than the other tested polymers, which implies that it is a potentially applicable material as the elastomer for high-power ultrasonic devices. Copyright © 2016 Elsevier B.V. All rights reserved.

  9. Modeling and analysis of mechanical Quality factor of the resonator for cylinder vibratory gyroscope

    Science.gov (United States)

    Xi, Xiang; Wu, Xuezhong; Wu, Yulie; Zhang, Yongmeng

    2017-01-01

    Mechanical Quality factor( Q factor) of the resonator is an important parameter for the cylinder vibratory gyroscope(CVG). Traditional analytical methods mainly focus on a partial energy loss during the vibration process of the CVG resonator, thus are not accurate for the mechanical Q factor prediction. Therefore an integrated model including air damping loss, surface defect loss, support loss, thermoelastic damping loss and internal friction loss is proposed to obtain the mechanical Q factor of the CVG resonator. Based on structural dynamics and energy dissipation analysis, the contribution of each energy loss to the total mechanical Q factor is quantificationally analyzed. For the resonator with radius ranging from 10 mm to 20 mm, its mechanical Q factor is mainly related to the support loss, thermoelastic damping loss and internal friction loss, which are fundamentally determined by the geometric sizes and material properties of the resonator. In addition, resonators made of alloy 3J53 (Ni42CrTiAl), with different sizes, were experimentally fabricated to test the mechanical Q factor. The theoretical model is well verified by the experimental data, thus provides an effective theoretical method to design and predict the mechanical Q factor of the CVG resonator.

  10. Data quality and factor analysis of the Danish version of the Relationship Scale Questionnaire

    DEFF Research Database (Denmark)

    Andersen, Christina Maar; Pedersen, Anette Fischer; Carlsen, Anders Helles

    2017-01-01

    BACKGROUND: The Relationship Scale Questionnaire (RSQ) is a widely-used measure of adult attachment, but whether the results obtained by the RSQ fit the attachment construct has only been examined to a limited extent.OBJECTIVE: The objectives of this study were to investigate the psychometric......-factor structure which was validated through a confirmatory factor analyses in a second subsample comprised of 278 cancer patients and 289 general practitioners.RESULTS: The data quality of the RSQ was generally good, except low internal consistency and low to moderate test-retest reliability. The four subscales...

  11. High quality-factor fano metasurface comprising a single resonator unit cell

    Science.gov (United States)

    Sinclair, Michael B.; Warne, Larry K.; Basilio, Lorena I.; Langston, William L.; Campione, Salvatore; Brener, Igal; Liu, Sheng

    2017-06-20

    A new monolithic resonator metasurface design achieves ultra-high Q-factors while using only one resonator per unit cell. The metasurface relies on breaking the symmetry of otherwise highly symmetric resonators to induce intra-resonator mixing of bright and dark modes (rather than inter-resonator couplings), and is scalable from the near-infrared to radio frequencies and can be easily implemented in dielectric materials. The resulting high-quality-factor Fano metasurface can be used in many sensing, spectral filtering, and modulation applications.

  12. INFLUENCE OF THE IMPLEMENTATION FACTORS IN THE INFORMATION SYSTEMS QUALITY FOR THE USER SATISFACTION

    Directory of Open Access Journals (Sweden)

    María Isabel de la Garza Ramos

    2009-07-01

    Full Text Available This research studies the influence range of the organizational, planning and technical factors within the information quality, system quality and information systems services quality, in the user satisfaction, based on the designed model research for this purpose. The empirical study takes place in six Higher Education Institutes (94 questionnaires by the Partial Least Square statistic tool. The results has shown that Organizational Factor (information needs, management support, institutional objectives satisfaction is which has the most impact because its high correlation value (R=0.624; R=0.435 yR=0.428 and significance (p<0.001, p<0.01 and p<0.01 in the three raised hypotheses, taking into consideration an explained variance of 78.8% in the User Satisfaction. In the same way, with the quality in general, the users think that the information systems help to satisfy their information needs and increase their productivity into making decisions in their jobs.

  13. A Network and Visual Quality Aware N-Screen Content Recommender System Using Joint Matrix Factorization

    Directory of Open Access Journals (Sweden)

    Farman Ullah

    2014-01-01

    Full Text Available We propose a network and visual quality aware N-Screen content recommender system. N-Screen provides more ways than ever before to access multimedia content through multiple devices and heterogeneous access networks. The heterogeneity of devices and access networks present new questions of QoS (quality of service in the realm of user experience with content. We propose, a recommender system that ensures a better visual quality on user’s N-screen devices and the efficient utilization of available access network bandwidth with user preferences. The proposed system estimates the available bandwidth and visual quality on users N-Screen devices and integrates it with users preferences and contents genre information to personalize his N-Screen content. The objective is to recommend content that the user’s N-Screen device and access network are capable of displaying and streaming with the user preferences that have not been supported in existing systems. Furthermore, we suggest a joint matrix factorization approach to jointly factorize the users rating matrix with the users N-Screen device similarity and program genres similarity. Finally, the experimental results show that we also enhance the prediction and recommendation accuracy, sparsity, and cold start issues.

  14. A network and visual quality aware N-screen content recommender system using joint matrix factorization.

    Science.gov (United States)

    Ullah, Farman; Sarwar, Ghulam; Lee, Sungchang

    2014-01-01

    We propose a network and visual quality aware N-Screen content recommender system. N-Screen provides more ways than ever before to access multimedia content through multiple devices and heterogeneous access networks. The heterogeneity of devices and access networks present new questions of QoS (quality of service) in the realm of user experience with content. We propose, a recommender system that ensures a better visual quality on user's N-screen devices and the efficient utilization of available access network bandwidth with user preferences. The proposed system estimates the available bandwidth and visual quality on users N-Screen devices and integrates it with users preferences and contents genre information to personalize his N-Screen content. The objective is to recommend content that the user's N-Screen device and access network are capable of displaying and streaming with the user preferences that have not been supported in existing systems. Furthermore, we suggest a joint matrix factorization approach to jointly factorize the users rating matrix with the users N-Screen device similarity and program genres similarity. Finally, the experimental results show that we also enhance the prediction and recommendation accuracy, sparsity, and cold start issues.

  15. Psychopathology, quality of life, and related factors in children with celiac disease.

    Science.gov (United States)

    Sevinç, Eylem; Çetin, Fatih Hilmi; Coşkun, Banu Demet

    This study aimed to survey children with celiac disease (CD) for psychiatric disorders, determine the possible factors that predict psychopathology, and analyze health-related quality of life and possible factors that could affect the quality of life. In this study, all children completed the Schedule for Affective Disorders and Schizophrenia for School Age Children - Present and Lifetime Version - Turkish Version (K-SADS-PL-T), as well as the Pediatric Quality of Life Inventory (PedsQL) for the 8-12 age group, and a sentence completion test. A face-to-face interview was performed with the parents of the participants to inform them about the study. This study included 52 children with celiac disease in the age range of 8-12 years, and 40 healthy children. The mean age of the study group was 10.36±0.36 years, and 31 (59%) of them were females. The mean age of the control group was 10.35±0.46 years and 24 (60%) of them were females. The mean subscale scores of the Pediatric Quality of Life Inventory were significantly lower in children with celiac disease when compared to the control group (pde Pediatria. Published by Elsevier Editora Ltda. All rights reserved.

  16. Examining the Key Factors Affecting e-Service Quality of Small Online Apparel Businesses in Malaysia

    OpenAIRE

    Che Nawi Noorshella; Al Mamun Abdullah; Ahmad Raston Nursalihah

    2015-01-01

    e-Service quality (eSQ) is increasingly recognized as an important aspect, as well as the key to determining the competitive advantage and factor in the long-term retention of firms operating online. This study, therefore, is aimed at identifying the key determinants of eSQ among the small online apparel businesses in Malaysia. This study used a cross-sectional design, and data were collected from 765 customers who pur...

  17. Influence of stress factors and socio-demographic characteristics on the sleep quality of nursing students

    OpenAIRE

    Benavente, Sonia Betzabeth Ticona; Silva, Rodrigo Marques da; Higashi, Aline Baraldi; Guido, Laura de Azevedo; Costa, Ana Lucia Siqueira

    2014-01-01

    Objective:To analyze the influence of stress factors and socio-demographic characteristics on the sleep quality of nursing students. Method: An analytical cross-sectional and quantitative study, conducted with 151 nursing students in São Paulo between March and April of 2012. A form for socio-demographic characteristics, the Instrument to Evaluate Stress in Nursing Students and the Pittsburgh Sleep Index were applied. Results: High levels of stress was predominant for Time Management (27.8%) ...

  18. Factors Influencing the Choice and Quality Assessment of Hotel Facilities in Poland

    Directory of Open Access Journals (Sweden)

    Ozimek Irena

    2017-06-01

    Full Text Available The aim of this study was to investigate the effect of selected factors on the choice of hotel facilities by customers. Particular attention was focused on the perception of the quality of services by consumers. The field research, the results of which are presented in the article, was conducted on a nationwide sample of 1,000 persons aged from 15 to 70 according to the author’s questionnaire.

  19. Factors influencing the psychology and quality of life in lung cancer patients

    OpenAIRE

    Bin Wang; Nan Hao; Xun Zhang

    2017-01-01

    Objectives: To determine the factors closely correlated with the unhealthy psychological status of patients with lung cancer and to ascertain whether the unhealthy psychology adversely affects their quality-of-life (QOL). Methods: Patients newly diagnosed with lung cancer between May 2013 and December 2015 in the Department of Thoracic Surgery, Tianjin 4th Centre Hospital, Tianjin, China were enrolled in this cross-sectional study. Patients were asked to complete the Symptom Checkli...

  20. Factors influencing the psychology and quality of life in lung cancer patients

    OpenAIRE

    Wang, Bin; Hao, Nan; Zhang, Xun

    2017-01-01

    Objectives: To determine the factors closely correlated with the unhealthy psychological status of patients with lung cancer and to ascertain whether the unhealthy psychology adversely affects their quality-of-life (QOL). Methods: Patients newly diagnosed with lung cancer between May 2013 and December 2015 in the Department of Thoracic Surgery, Tianjin 4th Centre Hospital, Tianjin, China were enrolled in this cross-sectional study. Patients were asked to complete the Symptom Checklist 90 (SCL...

  1. Factors associated with Oral Health-Related Quality of Life of preschool children in Southern Brazil

    OpenAIRE

    ORTIZ, Fernanda Ruffo; RAMADAN, Yassmín Hêllwaht; GONZÁLEZ, Rubén Alberto BAYARDO; ARDENGHI, Thiago Machado

    2016-01-01

    ABSTRACT Objective: The aim of this study was to assess the impact of socioeconomic factors and clinical conditions on the child oral health-related quality of life (COHRQoL) of preschool children. Methods: A cross-sectional study was conducted with a representative sample of 547 children of 0-5-years-old from Santa Maria, RS, Brazil, in 2013. Data were collect in the National Children's Vaccination Day Program by calibrated dentists. Clinical examinations assessed the prevalence of dental ...

  2. Modeling water quality in an urban river using hydrological factors--data driven approaches.

    Science.gov (United States)

    Chang, Fi-John; Tsai, Yu-Hsuan; Chen, Pin-An; Coynel, Alexandra; Vachaud, Georges

    2015-03-15

    Contrasting seasonal variations occur in river flow and water quality as a result of short duration, severe intensity storms and typhoons in Taiwan. Sudden changes in river flow caused by impending extreme events may impose serious degradation on river water quality and fateful impacts on ecosystems. Water quality is measured in a monthly/quarterly scale, and therefore an estimation of water quality in a daily scale would be of good help for timely river pollution management. This study proposes a systematic analysis scheme (SAS) to assess the spatio-temporal interrelation of water quality in an urban river and construct water quality estimation models using two static and one dynamic artificial neural networks (ANNs) coupled with the Gamma test (GT) based on water quality, hydrological and economic data. The Dahan River basin in Taiwan is the study area. Ammonia nitrogen (NH3-N) is considered as the representative parameter, a correlative indicator in judging the contamination level over the study. Key factors the most closely related to the representative parameter (NH3-N) are extracted by the Gamma test for modeling NH3-N concentration, and as a result, four hydrological factors (discharge, days w/o discharge, water temperature and rainfall) are identified as model inputs. The modeling results demonstrate that the nonlinear autoregressive with exogenous input (NARX) network furnished with recurrent connections can accurately estimate NH3-N concentration with a very high coefficient of efficiency value (0.926) and a low RMSE value (0.386 mg/l). Besides, the NARX network can suitably catch peak values that mainly occur in dry periods (September-April in the study area), which is particularly important to water pollution treatment. The proposed SAS suggests a promising approach to reliably modeling the spatio-temporal NH3-N concentration based solely on hydrological data, without using water quality sampling data. It is worth noticing that such estimation can be

  3. Averaging of multivalued differential equations

    Directory of Open Access Journals (Sweden)

    G. Grammel

    2003-04-01

    Full Text Available Nonlinear multivalued differential equations with slow and fast subsystems are considered. Under transitivity conditions on the fast subsystem, the slow subsystem can be approximated by an averaged multivalued differential equation. The approximation in the Hausdorff sense is of order O(ϵ1/3 as ϵ→0.

  4. Fuzzy Weighted Average: Analytical Solution

    NARCIS (Netherlands)

    van den Broek, P.M.; Noppen, J.A.R.

    2009-01-01

    An algorithm is presented for the computation of analytical expressions for the extremal values of the α-cuts of the fuzzy weighted average, for triangular or trapeizoidal weights and attributes. Also, an algorithm for the computation of the inverses of these expressions is given, providing exact

  5. High average power supercontinuum sources

    Indian Academy of Sciences (India)

    The physical mechanisms and basic experimental techniques for the creation of high average spectral power supercontinuum sources is briefly reviewed. We focus on the use of high-power ytterbium-doped fibre lasers as pump sources, and the use of highly nonlinear photonic crystal fibres as the nonlinear medium.

  6. Polyhedral Painting with Group Averaging

    Science.gov (United States)

    Farris, Frank A.; Tsao, Ryan

    2016-01-01

    The technique of "group-averaging" produces colorings of a sphere that have the symmetries of various polyhedra. The concepts are accessible at the undergraduate level, without being well-known in typical courses on algebra or geometry. The material makes an excellent discovery project, especially for students with some background in…

  7. Physics and material science of ultra-high quality factor superconducting resonator

    Energy Technology Data Exchange (ETDEWEB)

    Vostrikov, Alexander [Univ. of Chicago, IL (United States)

    2015-08-01

    The nitrogen doping into niobium superconducting radio frequency cavity walls aiming to improve the fundamental mode quality factor is the subject of the research in the given work. Quantitative nitrogen diffusion into niobium model calculating the concentration profile was developed. The model estimations were confirmed with secondary ion mass spectrometry technique measurements. The model made controlled nitrogen doping recipe optimization possible. As a result the robust reproducible recipe for SRF cavity walls treatment with nitrogen doping was developed. The cavities produced with optimized recipe met LCLS–II requirements on quality factor of 2.7 ∙ 1010 at acceleration field of 16 MV/m. The microscopic effects of nitrogen doping on superconducting niobium properties were studied with low energy muon spin rotation technique and magnetometer measurements. No significant effect of nitrogen on the following features was found: electron mean free path, magnetic field penetration depth, and upper and surface critical magnetic fields. It was detected that for nitrogen doped niobium samples magnetic flux starts to penetrate inside the superconductor at lower external magnetic field value compared to the low temperature baked niobium ones. This explains lower quench field of SRF cavities treated with nitrogen. Quality factor improvement of fundamental mode forced to analyze the high order mode (HOM) impact on the particle beam dynamics. Both resonant and cumulative effects caused by monopole and dipole HOMs respectively are found to be negligible within the requirements for LCLS–II.

  8. Factors affecting age of onset of menopause and determination of quality of life in menopause.

    Science.gov (United States)

    Ceylan, Burcu; Özerdoğan, Nebahat

    2015-03-01

    Menopause is a process in the climacteric period, characterized by a reduction in ovarian activity, a fall in the fertility rate, and a range of symptoms including irregular menstruation intervals. Most women enter menopause in their 40s, but this can vary from one individual to another. Although there are many factors affecting the age of menopause onset, there is no general agreement on them. Studies have shown many factors to affect the age of menopause, such as the mother's age at menopause, the age at menarche, gestational age, use of oral contraceptives, irregular menstrual cycle, number of pregnancies, body mass index, use of tobacco and alcohol, physical activity, unilateral oophorectomy, serum lead levels, consumption of polyunsaturated fat, socioeconomic status and educational level. During this period, hormonal and biochemical changes give rise to various symptoms in the woman's body. In menopause period, physical, psychological, social and sexual changes have a negative effect on quality of life in women. Recently, different measures have been used to assess women's quality of life in this period of change. The purpose of this review was to examine the factors affecting the onset age of menopause and the measures of quality of life related to menopause.

  9. Eating Disorder Quality of Life Scale (EDQLS) in ethnically diverse college women: an exploratory factor analysis.

    Science.gov (United States)

    Akoury, Liya M; Rozalski, Vincent; Barchard, Kimberly A; Warren, Cortney S

    2018-03-01

    Extant research suggests that disordered eating is common in college women and is associated with decreased quality of life. The Eating Disorder Quality of Life Scale (EDQLS) examines impairment to disordered eating-related quality of life, but has not been validated in college women. Accordingly, the purpose of this study was to examine the reliability, validity, and factor structure of the EDQLS in a diverse sample of 971 college women. Students from a large United States university completed questionnaires examining disordered eating and the EDQLS online. The EDQLS demonstrated excellent internal consistency and good convergent validity with the Eating Disorder Examination Questionnaire (EDEQ). Contrary to the original 12-domain design of the EDQLS, principal component analyses suggested five factors that mapped onto the following constructs: (1) Positive Emotionality; (2) Body/Weight Dissatisfaction; (3) Disordered Eating Behaviors; (4) Negative Emotionality; and (5) Social Engagement. However, 15 of the 40 items loaded onto multiple factors. Total scores on the EDQLS are reliable and valid when used with diverse samples of college women, but some revisions are needed to create subscales than can justifiably be used in clinical practice.

  10. Prediction of quality attributes of chicken breast fillets by using Vis/NIR spectroscopy combined with factor analysis method

    Science.gov (United States)

    Visible/near-infrared (Vis/NIR) spectroscopy with wavelength range between 400 and 2500 nm combined with factor analysis method was tested to predict quality attributes of chicken breast fillets. Quality attributes, including color (L*, a*, b*), pH, and drip loss were analyzed using factor analysis ...

  11. Magnetic field emission comparison at different quality factors with series-series compensation network for inductive power transfer to vehicles

    DEFF Research Database (Denmark)

    Batra, Tushar; Schaltz, Erik

    2014-01-01

    of all in this paper an analytic expression for comparing the magnetic emissions at different quality factors is introduced. It is shown with help of simulations on Comsol that emissions have a lower increase as compared to linear increase in the power transferred with the quality factor as suggested...... by the analytical calculations....

  12. Magnetic Field Emission Comparison at Different Quality Factors with Series-Parallel Compensation Network for Wireless Power Transfer to Vehicles

    DEFF Research Database (Denmark)

    Batra, Tushar; Schaltz, Erik

    2014-01-01

    to the surroundings also increase with increase in the quality factor. In this paper, first analytical expressions are developed for comparing magnetic emissions at different quality factors. Theoretical and simulation (Comsol) results show comparatively lower increase for the magnetic field emissions to the linear...

  13. Source-Based Modeling Of Urban Stormwater Quality Response to the Selected Scenarios Combining Future Changes in Climate and Socio-Economic Factors.

    Science.gov (United States)

    Borris, Matthias; Leonhardt, Günther; Marsalek, Jiri; Österlund, Heléne; Viklander, Maria

    2016-08-01

    The assessment of future trends in urban stormwater quality should be most helpful for ensuring the effectiveness of the existing stormwater quality infrastructure in the future and mitigating the associated impacts on receiving waters. Combined effects of expected changes in climate and socio-economic factors on stormwater quality were examined in two urban test catchments by applying a source-based computer model (WinSLAMM) for TSS and three heavy metals (copper, lead, and zinc) for various future scenarios. Generally, both catchments showed similar responses to the future scenarios and pollutant loads were generally more sensitive to changes in socio-economic factors (i.e., increasing traffic intensities, growth and intensification of the individual land-uses) than in the climate. Specifically, for the selected Intermediate socio-economic scenario and two climate change scenarios (RSP = 2.6 and 8.5), the TSS loads from both catchments increased by about 10 % on average, but when applying the Intermediate climate change scenario (RCP = 4.5) for two SSPs, the Sustainability and Security scenarios (SSP1 and SSP3), the TSS loads increased on average by 70 %. Furthermore, it was observed that well-designed and maintained stormwater treatment facilities targeting local pollution hotspots exhibited the potential to significantly improve stormwater quality, however, at potentially high costs. In fact, it was possible to reduce pollutant loads from both catchments under the future Sustainability scenario (on average, e.g., TSS were reduced by 20 %), compared to the current conditions. The methodology developed in this study was found useful for planning climate change adaptation strategies in the context of local conditions.

  14. Source-Based Modeling Of Urban Stormwater Quality Response to the Selected Scenarios Combining Future Changes in Climate and Socio-Economic Factors

    Science.gov (United States)

    Borris, Matthias; Leonhardt, Günther; Marsalek, Jiri; Österlund, Heléne; Viklander, Maria

    2016-08-01

    The assessment of future trends in urban stormwater quality should be most helpful for ensuring the effectiveness of the existing stormwater quality infrastructure in the future and mitigating the associated impacts on receiving waters. Combined effects of expected changes in climate and socio-economic factors on stormwater quality were examined in two urban test catchments by applying a source-based computer model (WinSLAMM) for TSS and three heavy metals (copper, lead, and zinc) for various future scenarios. Generally, both catchments showed similar responses to the future scenarios and pollutant loads were generally more sensitive to changes in socio-economic factors (i.e., increasing traffic intensities, growth and intensification of the individual land-uses) than in the climate. Specifically, for the selected Intermediate socio-economic scenario and two climate change scenarios (RSP = 2.6 and 8.5), the TSS loads from both catchments increased by about 10 % on average, but when applying the Intermediate climate change scenario (RCP = 4.5) for two SSPs, the Sustainability and Security scenarios (SSP1 and SSP3), the TSS loads increased on average by 70 %. Furthermore, it was observed that well-designed and maintained stormwater treatment facilities targeting local pollution hotspots exhibited the potential to significantly improve stormwater quality, however, at potentially high costs. In fact, it was possible to reduce pollutant loads from both catchments under the future Sustainability scenario (on average, e.g., TSS were reduced by 20 %), compared to the current conditions. The methodology developed in this study was found useful for planning climate change adaptation strategies in the context of local conditions.

  15. The Analysis Of Factors Affect The Quality Of Competitive Strategy In Industry SME For Embroidery At Padang City

    Directory of Open Access Journals (Sweden)

    dahliana kamener dahlia

    2016-10-01

    Full Text Available The study aimed to analyze the quality factors of competitive strategy on SME for Industrial embroidery in Padang city. With this research is expected to provide benefits to the industry, especially SMEs Industrial embroidery to be able to improve and consider the factors that can affect the quality of competitive strategy in this industry, which the factors influenced such as Quality Strategic Asset, Environment Adabtability and price strategic to the Quality Strategic Competition. The populations of this study were SME industry for the embroidery product in the city of Padang and used census sampling. Data retrieved from the primary data by spreading questionnaires and the measurement by using a Likert scale. Methods of analysis by using descriptive analysis, multiple regression analysis to test the hyphotheses. The result showed that the quality of asset strategik was postively significant effect the Quality Strategic Competition, and enviromental adaptability and price strategy have positively not significant effect on the Quality Strategic Competition.

  16. Impairment-Factor-Based Audiovisual Quality Model for IPTV: Influence of Video Resolution, Degradation Type, and Content Type

    Directory of Open Access Journals (Sweden)

    Garcia MN

    2011-01-01

    Full Text Available This paper presents an audiovisual quality model for IPTV services. The model estimates the audiovisual quality of standard and high definition video as perceived by the user. The model is developed for applications such as network planning and packet-layer quality monitoring. It mainly covers audio and video compression artifacts and impairments due to packet loss. The quality tests conducted for model development demonstrate a mutual influence of the perceived audio and video quality, and the predominance of the video quality for the overall audiovisual quality. The balance between audio quality and video quality, however, depends on the content, the video format, and the audio degradation type. The proposed model is based on impairment factors which quantify the quality-impact of the different degradations. The impairment factors are computed from parameters extracted from the bitstream or packet headers. For high definition video, the model predictions show a correlation with unknown subjective ratings of 95%. For comparison, we have developed a more classical audiovisual quality model which is based on the audio and video qualities and their interaction. Both quality- and impairment-factor-based models are further refined by taking the content-type into account. At last, the different model variants are compared with modeling approaches described in the literature.

  17. Mineral nutrition as a factor of stability of technological quality in winter wheat cultivars

    Directory of Open Access Journals (Sweden)

    Đurić Veselinka

    2005-01-01

    Full Text Available Afield trial was carried out with eight cultivars (Libellula, Drina, Sremica NSR-2, Jugoslavija, Somborka, Lasta and Pobeda of winter wheat (Trticum aestivum L representing several different periods in our country's wheat selection and having different potentials for technological grain quality. Six different rates of nitrogen fertilizer were tested: 0, 60, 90, 120, 150 and 180 kgNha-1. Increasing N fertilizer rates resulted in a linear increase of the direct and indirect indicators of quality. The best results were obtained with the cultivar Sremica and the poorest with Lasta, while Jugoslavija and Pobeda were shown to be of approximately the same quality. The contribution of N fertilizer variance to total variance was the largest for protein content (43.7%. N nutrition had a greater influence on protein content in cultivars from the earlier periods of selection. Its effect on sedimentation value, on the other hand, was greater in the recently released cultivars. The contribution of the genetic factor to total variance was the highest for crumb value number (CVN (58.7% and bread volume yield (44.2% and the lowest for protein content (20.8%. The absence of significant differences in the CVN means at any of the N nutrition levels studied resulted from the variability of the indirect indicators closely linked with the direct indicators of baking quality, showing the importance of N nutrition for maintaining the stability of technological quality in winter wheat cultivars.

  18. FACTORS AFFECTING QUALITY OF LIFE AND LEVEL OF SOCIAL SUPPORT IN CANCER PATIENTS

    Directory of Open Access Journals (Sweden)

    Ayse Berivan Bakan

    2017-04-01

    Full Text Available Background: When people face health problems, their life satisfaction levels and social relations could be ruined. When it comes to an eerie, deadly and chronic disease like cancer, the individual is much more likely to be affected by it. Objective: This descriptive study aims to identify quality of life and level of social support and the affecting factors in cancer patients. Methods: The sample included 170 patients who applied to Internal Diseases, Radiation Oncology, Thorax diseases clinics and Chemotherapy polyclinic in a university hospital in Turkey between March and August, 2005, who met the research criteria, and who volunteered to participate in the study. The sample represented 20 % of the target population. Data were collected through SF-36 Quality of Life Scale and Multidimensional Scale of Perceived Social Support. Results: The patients’ Global Quality of Life mean score was found 38.67 ± 13.64, and mean score for the Perceived Social Support was found 59.19 ± 17.5. Global Quality of Life score was higher in those who underwent an operation and who received ambulatory health care. Although Global Quality of Life was not influenced by the gender variable, male patients’ level of well-being was found to be higher. Perceived Social Support total score was found to be higher in those who knew about their disease. Family support was found to be higher in those who were married and who lived in town; it was found to be low in those who had low socio-economic level and who received inpatient treatment. Friend support was found to be high in those who knew about their disease. Conclusion: There was a linear relationship between Perceived Social Support and Quality of Life. It is recommended that more studies with wider groups of participants would shed more light to the issue of identifying quality of life, social support level and the relationships between them in cancer patients.

  19. Factors influencing success in quality-improvement collaboratives: development and psychometric testing of an instrument

    Directory of Open Access Journals (Sweden)

    Grol Richard PTM

    2010-10-01

    Full Text Available Abstract Background To increase the effectiveness of quality-improvement collaboratives (QICs, it is important to explore factors that potentially influence their outcomes. For this purpose, we have developed and tested the psychometric properties of an instrument that aims to identify the features that may enhance the quality and impact of collaborative quality-improvement approaches. The instrument can be used as a measurement instrument to retrospectively collect information about perceived determinants of success. In addition, it can be prospectively applied as a checklist to guide initiators, facilitators, and participants of QICs, with information about how to perform or participate in a collaborative with theoretically optimal chances of success. Such information can be used to improve collaboratives. Methods We developed an instrument with content validity based on literature and the opinions of QIC experts. We collected data from 144 healthcare professionals in 44 multidisciplinary improvement teams participating in two QICs and used exploratory factor analysis to assess the construct validity. We used Cronbach's alpha to ascertain the internal consistency. Results The 50-item instrument we developed reflected expert-opinion-based determinants of success in a QIC. We deleted nine items after item reduction. On the basis of the factor analysis results, one item was dropped, which resulted in a 40-item questionnaire. Exploratory factor analysis showed that a three-factor model provided the best fit. The components were labeled 'sufficient expert team support', 'effective multidisciplinary teamwork', and 'helpful collaborative processes'. Internal consistency reliability was excellent (alphas between .85 and .89. Conclusions This newly developed instrument seems a promising tool for providing healthcare workers and policy makers with useful information about determinants of success in QICs. The psychometric properties of the instrument are

  20. National Assessment of Data Quality and Associated Systems-Level Factors in Malawi.

    Science.gov (United States)

    O'Hagan, Richael; Marx, Melissa A; Finnegan, Karen E; Naphini, Patrick; Ng'ambi, Kumbukani; Laija, Kingsley; Wilson, Emily; Park, Lois; Wachepa, Sautso; Smith, Joseph; Gombwa, Lewis; Misomali, Amos; Mleme, Tiope; Yosefe, Simeon

    2017-09-27

    Routine health data can guide health systems improvements, but poor quality of these data hinders use. To address concerns about data quality in Malawi, the Ministry of Health and National Statistical Office conducted a data quality assessment (DQA) in July 2016 to identify systems-level factors that could be improved. We used 2-stage stratified random sampling methods to select health centers and hospitals under Ministry of Health auspices, included those managed by faith-based entities, for this DQA. Dispensaries, village clinics, police and military facilities, tertiary-level hospitals, and private facilities were excluded. We reviewed client registers and monthly reports to verify availability, completeness, and accuracy of data in 4 service areas: antenatal care (ANC), family planning, HIV testing and counseling, and acute respiratory infection (ARI). We also conducted interviews with facility and district personnel to assess health management information system (HMIS) functioning and systems-level factors that may be associated with data quality. We compared systems and quality factors by facility characteristics using 2-sample t tests with Welch's approximation, and calculated verification ratios comparing total entries in registers to totals from summarized reports. We selected 16 hospitals (of 113 total in Malawi), 90 health centers (of 466), and 16 district health offices (of 28) in 16 of Malawi's 28 districts. Nearly all registers were available and complete in health centers and district hospitals, but data quality varied across service areas; median verification ratios comparing register and report totals at health centers ranged from 0.78 (interquartile range [IQR]: 0.25, 1.07) for ARI and 0.99 (IQR: 0.82, 1.36) for family planning to 1.00 (IQR: 0.96, 1.00) for HIV testing and counseling and 1.00 (IQR: 0.80, 1.23) for ANC. More than half (60%) of facilities reported receiving a documented supervisory visit for HMIS in the prior 6 months. A recent

  1. Factores moduladores de la percepción de la calidad docente. [Modulating factors in the perception of teaching quality].

    Directory of Open Access Journals (Sweden)

    Casero, Antonio

    2010-09-01

    Full Text Available This article examines the existing research findings in relation to the research of the factors that are presumably involved in university students’ evaluations of the teaching quality they receive, possibly threatening the validity of the construct. The review is organized around the three implicated sources in the perceptive process of the student, being the student himself, the professor, and the context. The review concludes that, despite some minor effects, the factors under analysis do not represent a substantial threat to the system’s validity. The unproductive debate that has gone on for decades about guarantees in the evaluation of teaching staff has largely been used to cover up the absence of a desire to institutionalize this kind of evaluation system. El presente artículo tiene como objetivo presentar una revisión sobre los hallazgos existentes en relación a la investigación de los factores supuestamente implicados en la valoración que el alumnado universitario realiza sobre la tarea docente de sus profesores, pudiendo suponer una amenaza a la validez de dicho constructo. La revisión se presenta organizada en torno a las tres fuentes implicadas en el proceso perceptivo del alumno, siendo éstas el propio alumno, el profesor y el contexto. La revisión concluye que, a pesar de efectos menores, los factores analizados no representan una amenaza substancial a la validez del sistema. El debate infructuoso que se ha producido durante décadas sobre las garantías en la valoración del personal docente ha sido usado en gran parte para encubrir la falta de deseo de institucionalizar este tipo de sistemas de evaluación.

  2. Factors associated with quality of life among hemodialysis patients in Malaysia.

    Directory of Open Access Journals (Sweden)

    Nor Baizura Md Yusop

    Full Text Available Although hemodialysis treatment has greatly increased the life expectancy of end stage renal disease patients, low quality of life among hemodialysis patients is frequently reported. This cross-sectional study aimed to determine the relationship between medical history, hemodialysis treatment and nutritional status with the mental and physical components of quality of life in hemodialysis patients. Respondents (n=90 were recruited from Hospital Kuala Lumpur and dialysis centres of the National Kidney Foundation of Malaysia. Data obtained included socio-demography, medical history, hemodialysis treatment and nutritional status. Mental and physical quality of life were measured using the Mental Composite Summary (MCS and Physical Composite Summary (PCS of the Short-Form Health Survey 36-items, a generic core of the Kidney Disease Quality of Life Short Form. Two summary measures and total SF-36 was scored as 0-100, with a higher score indicating better quality of life. Approximately 26 (30% of respondents achieved the body mass index (24 kg/m(2 and more than 80% (n=77 achieved serum albumin level (>35.0 mg/dL recommended for hemodialysis patients. The majority of respondents did not meet the energy (n=72, 80% and protein (n=68,75% recommendations. The total score of SF-36 was 54.1 ± 19.2, while the score for the mental and physical components were 45.0 ± 8.6 and 39.6 ± 8.6, respectively. Factors associated with a higher MCS score were absence of diabetes mellitus (p=0.000 and lower serum calcium (p=0.004, while higher blood flow (p=0.000, higher serum creatinine (p=0.000 and lower protein intake (p=0.006 were associated with a higher PCS score. To improve the overall quality of life of hemodialysis patients, a multidisciplinary intervention that includes medical, dietetic and psychosocial strategies that address factors associated with mental and physical quality of life are warranted to reduce further health complications and to improve quality

  3. Factors Associated with Quality of Life among Hemodialysis Patients in Malaysia

    Science.gov (United States)

    Md. Yusop, Nor Baizura; Yoke Mun, Chan; Shariff, Zalilah Mohd; Beng Huat, Choo

    2013-01-01

    Although hemodialysis treatment has greatly increased the life expectancy of end stage renal disease patients, low quality of life among hemodialysis patients is frequently reported. This cross-sectional study aimed to determine the relationship between medical history, hemodialysis treatment and nutritional status with the mental and physical components of quality of life in hemodialysis patients. Respondents (n=90) were recruited from Hospital Kuala Lumpur and dialysis centres of the National Kidney Foundation of Malaysia. Data obtained included socio-demography, medical history, hemodialysis treatment and nutritional status. Mental and physical quality of life were measured using the Mental Composite Summary (MCS) and Physical Composite Summary (PCS) of the Short-Form Health Survey 36-items, a generic core of the Kidney Disease Quality of Life Short Form. Two summary measures and total SF-36 was scored as 0–100, with a higher score indicating better quality of life. Approximately 26 (30%) of respondents achieved the body mass index (24 kg/m2) and more than 80% (n=77) achieved serum albumin level (>35.0 mg/dL) recommended for hemodialysis patients. The majority of respondents did not meet the energy (n=72, 80%) and protein (n=68,75%) recommendations. The total score of SF-36 was 54.1±19.2, while the score for the mental and physical components were 45.0±8.6 and 39.6±8.6, respectively. Factors associated with a higher MCS score were absence of diabetes mellitus (p=0.000) and lower serum calcium (p=0.004), while higher blood flow (p=0.000), higher serum creatinine (p=0.000) and lower protein intake (p=0.006) were associated with a higher PCS score. To improve the overall quality of life of hemodialysis patients, a multidisciplinary intervention that includes medical, dietetic and psychosocial strategies that address factors associated with mental and physical quality of life are warranted to reduce further health complications and to improve quality of life

  4. Factors associated with quality of life among hemodialysis patients in Malaysia.

    Science.gov (United States)

    Md Yusop, Nor Baizura; Yoke Mun, Chan; Shariff, Zalilah Mohd; Beng Huat, Choo

    2013-01-01

    Although hemodialysis treatment has greatly increased the life expectancy of end stage renal disease patients, low quality of life among hemodialysis patients is frequently reported. This cross-sectional study aimed to determine the relationship between medical history, hemodialysis treatment and nutritional status with the mental and physical components of quality of life in hemodialysis patients. Respondents (n=90) were recruited from Hospital Kuala Lumpur and dialysis centres of the National Kidney Foundation of Malaysia. Data obtained included socio-demography, medical history, hemodialysis treatment and nutritional status. Mental and physical quality of life were measured using the Mental Composite Summary (MCS) and Physical Composite Summary (PCS) of the Short-Form Health Survey 36-items, a generic core of the Kidney Disease Quality of Life Short Form. Two summary measures and total SF-36 was scored as 0-100, with a higher score indicating better quality of life. Approximately 26 (30%) of respondents achieved the body mass index (24 kg/m(2)) and more than 80% (n=77) achieved serum albumin level (>35.0 mg/dL) recommended for hemodialysis patients. The majority of respondents did not meet the energy (n=72, 80%) and protein (n=68,75%) recommendations. The total score of SF-36 was 54.1 ± 19.2, while the score for the mental and physical components were 45.0 ± 8.6 and 39.6 ± 8.6, respectively. Factors associated with a higher MCS score were absence of diabetes mellitus (p=0.000) and lower serum calcium (p=0.004), while higher blood flow (p=0.000), higher serum creatinine (p=0.000) and lower protein intake (p=0.006) were associated with a higher PCS score. To improve the overall quality of life of hemodialysis patients, a multidisciplinary intervention that includes medical, dietetic and psychosocial strategies that address factors associated with mental and physical quality of life are warranted to reduce further health complications and to improve quality of

  5. The impact of factors influencing destination quality on overall customer satisfaction

    Directory of Open Access Journals (Sweden)

    Ida Vajčnerová

    2013-01-01

    Full Text Available The paper deals with problems concerning tourist destination quality and the impact of individual factors on the overall satisfaction of a customer – a visitor to a destination. The methodology is based on the evaluation of individual factors that were identified on the basis of previously conducted researches and that consider all attributes of a destination which visitors are able to evaluate on the basis of their experience and consequent satisfaction. The used data were obtained by a questionnaire surveys, the evaluation is qualitative, and the ten-degree Likert scale is used. The practical part of the paper will focus on creating a multidimensional regression model for overall customer satisfaction for evaluating individual quality factors. The objective of the paper is to identify factors that influence overall customer satisfaction the most; this will be done on the basis of the statistical importance of individual regression parameters. The analysis will be conducted for the data from the regions of Lednice-Valtice Area and Znojemsko and Podyjí; subsequently these two regions will be compared.

  6. The dynamics of narrative writing in primary grade children: writing process factors predict story quality.

    Science.gov (United States)

    von Koss Torkildsen, Janne; Morken, Frøydis; Helland, Wenche A; Helland, Turid

    In this study of third grade school children, we investigated the association between writing process measures recorded with key stroke logging and the final written product. Moreover, we examined the cognitive predictors of writing process and product measures. Analyses of key strokes showed that while most children spontaneously made local online revisions while writing, few revised previously written text. Children with good reading and spelling abilities made more online revisions than their peers. Two process factors, transcription fluency and online revision activity, contributed to explaining variance in narrative macrostructural quality and story length. As for cognitive predictors, spelling was the only factor that gave a unique contribution to explaining variance in writing process factors. Better spelling was associated with more revisions and faster transcription. The results show that developing writers' ability to make online revisions in creative writing tasks is related to both the quality of the final written product and to individual literacy skills. More generally, the findings indicate that investigations of the dynamics of the writing process may provide insights into the factors that contribute to creative writing during early stages of literacy.

  7. When good = better than average

    Directory of Open Access Journals (Sweden)

    Don A. Moore

    2007-10-01

    Full Text Available People report themselves to be above average on simple tasks and below average on difficult tasks. This paper proposes an explanation for this effect that is simpler than prior explanations. The new explanation is that people conflate relative with absolute evaluation, especially on subjective measures. The paper then presents a series of four studies that test this conflation explanation. These tests distinguish conflation from other explanations, such as differential weighting and selecting the wrong referent. The results suggest that conflation occurs at the response stage during which people attempt to disambiguate subjective response scales in order to choose an answer. This is because conflation has little effect on objective measures, which would be equally affected if the conflation occurred at encoding.

  8. Factors affecting the quality of life of cancer patients undergoing chemotherapy: A questionnaire study

    Directory of Open Access Journals (Sweden)

    Sema Üstündag

    2015-01-01

    Full Text Available Objective: This descriptive and cross-sectional study was undertaken to determine the factors affecting cancer patients′ quality of life. Methods: We collected data from 352 chemotherapy patients of an Outpatient Chemotherapy Unit in a state hospital. We included volunteered chemotherapy patients with a signed informed consent and at least 50 Karnofsky Performance Scale points. We gathered data by Personal Information Form and Nightingale Symptom Assessment Scale (N-SAS and analyzed via basic descriptive statistics and linear regression analysis. Results: Patients were women (54.8%, married (83.5%, elementary school graduates (57.1%, housewives (44.6% and undergoing fluorouracil-based therapy (47.2%, and almost all patients had religious and cultural rituals for the disease. Women experienced worse physical and social well-being than men (P = 0.001, P = 0.0001. Singles had worse psychological and general well-being (P = 0.0001, P = 0.0001. Housewives had the worst physical and social well-being (P 0.05. Breast cancer and sarcoma patients had the worst social well-being than other cancer patients. The N-SAS points of patients were not affected by blessings/prays, vow/sacrifice, consulting local herbalists and visiting "ocaks (folk physicians" (P > 0.05. Patients with bad quality of life practiced lead pouring and amulets (P < 0.05. Gender was the first factor affecting the quality of life. Conclusion: Advanced studies on individual quality of life factors affecting cancer would empower nurses for better personal care techniques and patients for easily overcoming the disease.

  9. Psychosocial factors, quality of life, and psychological distress: ethnic differences in patients with heart failure.

    Science.gov (United States)

    Bean, Melanie K; Gibson, Douglas; Flattery, Maureen; Duncan, Angela; Hess, Michael

    2009-12-01

    Advances in treatment have prolonged life in heart failure (HF) patients, leading to increased attention to quality of life (QOL) and psychological functioning. It is not clear if ethnic differences exist in factors associated with psychological well-being. We examined psychosocial factors associated with depression and anxiety in 97 HF patients. Medical records were reviewed and patients (M age 53, 50% African American) completed surveys examining social support, coping, spirituality, and QOL for their association with depression and anxiety. Multiple regressions suggested that psychosocial factors were associated with psychological health. Patients with lower social support, lower meaning/peace and more negative coping reported greater depression; positive coping, and lower meaning/peace were associated with higher anxiety. Ethnicity stratified models suggested that spiritual well-being was associated with depression only among African Americans and QOL partially mediated this relationship. Findings suggest the importance of considering the unique psychosocial needs of diverse populations to appropriately target clinical interventions.

  10. High average power induction accelerators

    International Nuclear Information System (INIS)

    Swingle, J.C.

    1985-10-01

    The induction accelerator is discussed with respect to general background and concept, beam transport, scaling, pulse power technology, and the electron beam injector. A discussion of the factors which affect the scaling of the intensity of the beam is given. Limiting factors include collective forces in the beam, virtual cathode formation, surroundings, and beam breakup instability. 24 refs., 11 figs

  11. Influence of socioeconomic factors on daily life activities and quality of life of Thai elderly

    Directory of Open Access Journals (Sweden)

    Ratana Somrongthong

    2017-06-01

    Full Text Available Background: The increasing number of older people is a significant issue in Thailand, resulted in growing demands of health and social welfare services. The study aim was to explore the influence of socioeconomic factors on activities of daily living and quality of life of Thai seniors. Design and methods: Using randomised cluster sampling, one province was sampled from each of the Central, North, Northeast and South regions, then one subdistrict sampled in each province, and a household survey used to identify the sample of 1678 seniors aged 60 years and over. The Mann-Whitney U-test and binary logistic regression were used to compare and determine the association of socioeconomic variables on quality of life and activities of daily living. Results: The findings showed that sociodemographic and socioeconomic factors were significantly related to functional capacity of daily living. Education levels were strongly associated with daily life activities, with 3.55 adjusted ORs for respondents with secondary school education. Gender was important, with females comprising 61% of dependent respondents but only 47% of independent respondents. Seniors with low incomes were more likely to be anxious in the past, present and future and less likely to accept death in the late stage, with 1.40 Adjusted ORs (95%CI: 1.02-1.92, and 0.72 (95%CI: 0.53-0.98, respectively. However, they were more likely to engage in social activities. Conclusions: While socioeconomic factors strongly indicated the functional capacity to live independently, a good quality of life also required other factors leading to happiness and life satisfaction.

  12. Leadership quality: a factor important for social capital in healthcare organizations.

    Science.gov (United States)

    Strömgren, Marcus; Eriksson, Andrea; Ahlstrom, Linda; Bergman, David Kristofer; Dellve, Lotta

    2017-04-10

    Purpose The purpose of this paper is to investigate the relation between leadership and social capital and what qualities of leadership are important for social capital among employees in hospital settings over time. Design/methodology/approach A cohort of employees in hospitals answered a questionnaire at three occasions. Five small (approx. 100-bed) or mid-sized (approx. 500-bed) hospitals were included. The response rate was 54 percent at baseline ( n=865), 59 percent at one-year follow-up ( n=908) and 67 percent at two-year follow-up ( n=632). Findings Repeated measures over time showed differences between groups in levels of social capital with respect to levels of leadership quality. Relation-oriented leadership had the strongest association with social capital. There was evidence that leadership was associated with social capital over time and that different kinds of leadership qualities were associated with social capital. Research limitations/implications This study conducted and analyzed quantitative data, and therefore, there is no knowledge of managers' or employees' own perceptions in this study. However, it would be interesting to compare managers' decreased and increased leadership quality and how such differences affect social capital over time. Practical implications The findings feature the possibility for healthcare leaders to build high quality leadership as an important resource for social capital, by using different leadership orientations under different circumstances. Originality/value The paper showed that leadership was an important factor for building social capital and that different leadership qualities have different importance with respect to certain circumstances.

  13. Weighted estimates for the averaging integral operator

    Czech Academy of Sciences Publication Activity Database

    Opic, Bohumír; Rákosník, Jiří

    2010-01-01

    Roč. 61, č. 3 (2010), s. 253-262 ISSN 0010-0757 R&D Projects: GA ČR GA201/05/2033; GA ČR GA201/08/0383 Institutional research plan: CEZ:AV0Z10190503 Keywords : averaging integral operator * weighted Lebesgue spaces * weights Subject RIV: BA - General Mathematics Impact factor: 0.474, year: 2010 http://link.springer.com/article/10.1007%2FBF03191231

  14. Does spinal stenosis correlate with MRI findings and pain, psychologic factor and quality of life?

    Science.gov (United States)

    Lee, Mi Young; Jung, Sung Won; Lee, Su Yong

    2015-01-01

    Background To investigate and analyze MRI findings in relation to visual analogue scale (VAS), Oswestry Disability Index (ODI), psychological-factor, sleep-quality, and Short-Form Health Survey (SF-36) scores among patients with central lumbar spinal stenosis (LSS) for the purpose of elucidating a correlation. Methods From July 2013 to May 2014, 117 consecutive patients with central LSS were included in this study. All of the MRIs were evaluated by one of the authors, and the evaluated items were the dural sac cross-sectional area (DSCSA), the number of stenotic levels, and the presence and levels of spondylolisthesis. The ODI, VAS, 36-item SF-36, Beck Depression Inventory (BDI), Beck Anxiety Inventory (BAI), and Pittsburgh Sleep Quality Index (PSQI) questionnaires were used to evaluate the participants. Results There are no correlations between the ODI, VAS, BDI, BAI, PSQI, and SF-36 scores and the minimum DSCSA; however, a significant correlation was found between the ODI scores and multilevel LSS. The BDI, BAI, and PSQI scores are higher for multilevel LSS compared with single-level LSS, but the difference of this mean value is not statistically significant. Conclusions A significant correlation was shown between those patients with multilevel LSS and the ODI scores; however, significant correlations were not found between the MRI findings and the psychological factors pertaining to sleep and life qualities. PMID:26495059

  15. Quality of Life and Related Demographic Factor of the Elderly in Tehran

    Directory of Open Access Journals (Sweden)

    Leili Panaghi

    2010-03-01

    Full Text Available Objectives: The object of this research was to investigate the «quality of life» and relation to demographic characteristics in elderly peopel of Tehran. Methods & Materials: the method of this research was a descriptive-correlation. In this research 243 of elder were selected with accessible sampling from people who referred to elder centers, cultural centers, and public parks in deferent districts of Tehran. The instruments were “demographic characteristics” and “quality of life questionnaire” (WHOQOL-BREF. in order to analyze data, descriptive statistics and stepwise regression were used. Results: In this research 134 male and 109 female were participated and their mean age was 71.41. Results of regression showed that in physical health, mental health and social relationships, good family relations was a positive predictor and in sequence physical illness, mental illness and weak family relations were predictors of decreasing scores. In environment domain, good economic status was a predictive factor of increasing scores and weak family relations was predictor ofdecreasing scores. Conclusion: according to data it’s clarified that family relations isone of the most effective factors on various domains in quality of life.

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

    Science.gov (United States)

    da Silva, Franciele Cascaes; Hernandez, Salma Stéphany Soleman; Arancibia, Beatriz Angélica Valdivia; Castro, Thiago Luis da Silva; Filho, Paulo José Barbosa Gutierres; da Silva, Rudney

    2014-04-27

    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. 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. 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. 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.

  17. Strategic Factors on Interpreting Remanufacturing Quality-Certifying Framework to Address Warranty Aftermarket for Malaysian Industry

    Science.gov (United States)

    Mohamed, N.; Saman, M. Z. M.; Sharif, S.; Hamzah, H. S.

    2018-03-01

    While the concept of remanufacturing is gaining popularity globally, literature and theory on strategic decision-making on certifying for warranty in this area remain limited. A strategic and establish concept flow is developed based on extensive literature review and surveys with experienced experts who are dealing with remanufactured, reconditioned, rebuilt and reused components. The remanufacturing research on evaluating quality assurance of remanufactured component targets macro-level parameters and the indicators which must be confirmed for evaluation. The strategic remanufacturing factors identified from the literature review are discussed in a brainstorming session with a number of remanufacturing researchers and academic experts. The study is further broadened by industrial surveys and case studies to justify the inputs on developing a framework to certify remanufactured components. Preliminary results have established the key factors of remanufacturing quality control that might lead to the strict quality assurance of remanufactured components. Later, the developed framework can be used as a benchmarking tool to certify remanufactured components and warranty issuance. The findings serve as the foundation for further research concerning Original Equipment Manufacturer (OEM) or Original Equipment Remanufacturer (OER) and Independent Equipment Remanufacturer (IER) in the Malaysian Remanufacturing Industry.

  18. Living with psoriasis: An insight into factors associated with quality of life

    Directory of Open Access Journals (Sweden)

    Milutinović Jelena D.

    2017-01-01

    Full Text Available Background: Patients with psoriasis show physical discomfort, stigma, loss of productivity, low self-esteem, and are often limited in everyday activities, social contacts and at work. Objective: The aim of this study was to reveal factors which may influence quality of life in patients with psoriasis, using qualitative research methodology. Methods: This study used grounded theory approach, which consist mainly of conducting interviews and collecting observational data. The subjects were patients who suffer from psoriasis. Results: After making interviews which were audio taped, they were transcribed and analysed in detail, revealing semantic units and combining them in seven categories and themes. Advertizing perfect skin through media, promoting it as a social ideal, ignorance and lack of understanding by others and unacceptance of own condition are main factors that significantly affect quality of life in patients suffering from psoriasis. Conclusion: Individual approach to every patient is necessary prerequisite for adequate treatment and building realistic expectation sac cording to severity of the disease. Relatively small changes in lifestyle and attitude towards the disease may significantly improve quality of life.

  19. Air quality: how to assess air quality management policies on a short and on a long term? The integration of the climate factor

    International Nuclear Information System (INIS)

    Prevot, Aurelie

    2014-01-01

    This document presents the activities and works performed by the INERIS Institute in the development of tools for the assessment of air quality management policies including the climate factor. This comprises the development of simulations within the frame of the SALUT'AIR project, and also within the frame of the reviewing of the European policy on air quality (directives 2008/50/CE on ambient air quality and 2001/81/CE on national limits of emissions of some pollutants). The CHIMERE model of chemistry and transport is one of these tools. Simulations are performed to analyse the impact of scenarios of air quality management on a short term, in terms of pollutant emissions, pollutant concentration, and particle concentrations. The integration of a climate factor is justified by the existence of interactions between climate and air quality

  20. Modeling study on the factors affecting regional air quality during the Beijing 2008 Olympic Games

    Science.gov (United States)

    Wei, C.; Carmichael, G. R.; Adhikary, B.; D'Allura, A.; Cheng, Y.; Tang, Y.; Zhang, Q.; Streets, D. G.; Pierce, R.; Al-Saadi, J. A.; Flowers, B. A.; Dubey, M. K.; Krotkov, N. A.; Pickering, K. E.; Ramanathan, V.

    2009-12-01

    Chinese government took measures to control emissions of pollutants before and during the Beijing 2008 Olympic Games in order to get better air quality for the event. A 3-dimensional regional chemical transport model, the University of Iowa’s Sulfur Transport and dEposition Model (STEM), is used to evaluate the effects of emission reductions on regional air quality by this event. The emission inventories with and without the consideration of emission reductions are used in case studies. Impacts of the emissions from different regions and sectors on Beijing and regional air quality are discussed in this study. Meteorological factor on the improvement of air quality during this event is also assessed by using the meteorological conditions from different years to drive the model. Model performance is evaluated by comparing the modeled trace gases and aerosols with the surface measurements from Beijing, the field observations from the Cheju ABC Plume-Asian Monsoon Experiment (CAPMEX) during this summer, and satellite data from NASA.

  1. A Psychological Perspective on Preterm Children: The Influence of Contextual Factors on Quality of Family Interactions

    Directory of Open Access Journals (Sweden)

    Michela Gatta

    2017-01-01

    Full Text Available Preterm birth has a critical influence on interactive, communicative, and expressive child behaviour, particularly during the first years of life. Few studies have stressed the assessment of mother-father-child interaction in families with preterm children, generating contradictory results. The present study wished to develop these fields: (i comparing the quality of family interactions between families with preterm children and families with children born at full term; (ii observing the development of family interactions after six months in the families with children born preterm; (iii assessing family and contextual factors, as parental stress and social support, in parents of preterm children in order to observe their influence on the quality of family interactions. 78 families are recruited: 39 families with preterm children (M = 19,8 months, SD = 11,05 and 39 families with full-term children (M = 19,66 months; SD = 13,10. Results show that families with preterm children display a low quality of mother-father-child interactions. After six months, family interactions result is generally stable, except for some LTP-scales reflecting a hard adjustment of parenting style to the evolution of the child. In families with preterm children, the parenting stress seemed to be correlated with the quality of mother-father-child interactions.

  2. A Psychological Perspective on Preterm Children: The Influence of Contextual Factors on Quality of Family Interactions.

    Science.gov (United States)

    Gatta, Michela; Miscioscia, Marina; Svanellini, Lorenza; Peraro, Chiara; Simonelli, Alessandra

    2017-01-01

    Preterm birth has a critical influence on interactive, communicative, and expressive child behaviour, particularly during the first years of life. Few studies have stressed the assessment of mother-father-child interaction in families with preterm children, generating contradictory results. The present study wished to develop these fields: (i) comparing the quality of family interactions between families with preterm children and families with children born at full term; (ii) observing the development of family interactions after six months in the families with children born preterm; (iii) assessing family and contextual factors, as parental stress and social support, in parents of preterm children in order to observe their influence on the quality of family interactions. 78 families are recruited: 39 families with preterm children ( M = 19,8 months, SD = 11,05) and 39 families with full-term children ( M = 19,66 months; SD = 13,10). Results show that families with preterm children display a low quality of mother-father-child interactions. After six months, family interactions result is generally stable, except for some LTP-scales reflecting a hard adjustment of parenting style to the evolution of the child. In families with preterm children, the parenting stress seemed to be correlated with the quality of mother-father-child interactions.

  3. Direct measurement of electron beam quality conversion factors using water calorimetry.

    Science.gov (United States)

    Renaud, James; Sarfehnia, Arman; Marchant, Kristin; McEwen, Malcolm; Ross, Carl; Seuntjens, Jan

    2015-11-01

    In this work, the authors describe an electron sealed water calorimeter (ESWcal) designed to directly measure absorbed dose to water in clinical electron beams and its use to derive electron beam quality conversion factors for two ionization chamber types. A functioning calorimeter prototype was constructed in-house and used to obtain reproducible measurements in clinical accelerator-based 6, 9, 12, 16, and 20 MeV electron beams. Corrections for the radiation field perturbation due to the presence of the glass calorimeter vessel were calculated using Monte Carlo (MC) simulations. The conductive heat transfer due to dose gradients and nonwater materials was also accounted for using a commercial finite element method software package. The relative combined standard uncertainty on the ESWcal dose was estimated to be 0.50% for the 9-20 MeV beams and 1.00% for the 6 MeV beam, demonstrating that the development of a water calorimeter-based standard for electron beams over such a wide range of clinically relevant energies is feasible. The largest contributor to the uncertainty was the positioning (Type A, 0.10%-0.40%) and its influence on the perturbation correction (Type B, 0.10%-0.60%). As a preliminary validation, measurements performed with the ESWcal in a 6 MV photon beam were directly compared to results derived from the National Research Council of Canada (NRC) photon beam standard water calorimeter. These two independent devices were shown to agree well within the 0.43% combined relative uncertainty of the ESWcal for this beam type and quality. Absorbed dose electron beam quality conversion factors were measured using the ESWcal for the Exradin A12 and PTW Roos ionization chambers. The photon-electron conversion factor, kecal, for the A12 was also experimentally determined. Nonstatistically significant differences of up to 0.7% were found when compared to the calculation-based factors listed in the AAPM's TG-51 protocol. General agreement between the relative

  4. Use of multiple methods to determine factors affecting quality of care of patients with diabetes.

    Science.gov (United States)

    Khunti, K

    1999-10-01

    The process of care of patients with diabetes is complex; however, GPs are playing a greater role in its management. Despite the research evidence, the quality of care of patients with diabetes is variable. In order to improve care, information is required on the obstacles faced by practices in improving care. Qualitative and quantitative methods can be used for formation of hypotheses and the development of survey procedures. However, to date few examples exist in general practice research on the use of multiple methods using both quantitative and qualitative techniques for hypothesis generation. We aimed to determine information on all factors that may be associated with delivery of care to patients with diabetes. Factors for consideration on delivery of diabetes care were generated by multiple qualitative methods including brainstorming with health professionals and patients, a focus group and interviews with key informants which included GPs and practice nurses. Audit data showing variations in care of patients with diabetes were used to stimulate the brainstorming session. A systematic literature search focusing on quality of care of patients with diabetes in primary care was also conducted. Fifty-four potential factors were identified by multiple methods. Twenty (37.0%) were practice-related factors, 14 (25.9%) were patient-related factors and 20 (37.0%) were organizational factors. A combination of brainstorming and the literature review identified 51 (94.4%) factors. Patients did not identify factors in addition to those identified by other methods. The complexity of delivery of care to patients with diabetes is reflected in the large number of potential factors identified in this study. This study shows the feasibility of using multiple methods for hypothesis generation. Each evaluation method provided unique data which could not otherwise be easily obtained. This study highlights a way of combining various traditional methods in an attempt to overcome the

  5. Sleep quality and associated factors in ankylosing spondylitis: relationship with disease parameters, psychological status and quality of life.

    Science.gov (United States)

    Batmaz, İbrahim; Sarıyıldız, Mustafa Akif; Dilek, Banu; Bez, Yasin; Karakoç, Mehmet; Çevik, Remzi

    2013-04-01

    The aim of this study is to investigate sleep quality in patients with ankylosing spondylitis (AS) and to evaluate the relationship of the disease parameters with sleep disturbance. Eighty AS patients (60 males and 20 females) fulfilling the modified New York criteria, and 52 age- and gender-matched controls (33 males and 19 females) were enrolled in the study. Sleep quality was assessed using the Pittsburgh Sleep Quality Index (PSQI). Pain was measured by visual analogue scale. The disease activity and functional status were assessed by the Bath AS disease Activity Index and the Bath AS Functional Index. The Bath AS Metrology Index was used to evaluate mobility restrictions, and the Bath AS Radiology Index was employed to evaluate the radiological damage. The psychological status and quality of life were assessed with the hospital anxiety-depression scale and AS quality of life scale. The patients with AS had significantly more unfavourable scores in the subjective sleep quality, habitual sleep efficiency domains (p sleep quality (total PSQI score) was positively correlated with increased pain, poor quality of life, higher depressed mood, higher disease activity and mobility restrictions. Pain was also an independent contributor to poorer sleep quality (p = 0.002). The sleep quality is disturbed in patients with AS. The lower quality of sleep is greatly associated with the pain, disease activity, depression, quality of life and increased limitation of mobility.

  6. Quality of life of people living with HIV/AIDS under the new epidemic characteristics in China and the associated factors.

    Directory of Open Access Journals (Sweden)

    Wei Sun

    Full Text Available BACKGROUND: Improvement of quality of life has been one of goals in health care for people living with HIV/AIDS (PLWHA. In China, the epidemic characteristics have changed and transmission is now most commonly sexual contact. However, the assessment of quality of life of PLWHA under new characteristics has limited reporting. This study was designed to assess the quality of life among PLWHA who contracted disease mainly via sexual contact and to clarify the associated factors. METHODS: A cross-sectional study was performed in Liaoning Province. Sample size (800 was calculated based on the fatality rate and enlarged with consideration on the loss of response. Participants were sampled by tables of random numbers among all registered PLWHA. Questionnaires pertaining to quality of life (SF-36 and related factors (demographic characteristics, social support and network, HIV/AIDS awareness, and behavior factors were distributed during December 2010-April 2011. 783 effective responses were obtained. RESULTS: The average scores of physical component summary (PCS, mental component summary (MCS, and total score (TS were 66.8±21.9 (Mean±SD, 62.2±20.9, and 64.5±20.2. General linear model analysis revealed that, in standardized estimate (β sequence, PCS was significantly associated with monthly income, perceived social support, antiretroviral therapy, transmission, and ethnicity; MCS was associated with perceived social support, antiretroviral therapy, condom use, monthly income, transmission, ethnicity, and alcohol consumption; whereas TS was associated with perceived social support, antiretroviral therapy, monthly income, transmission, condom use, and ethnicity. CONCLUSIONS: Quality of life for PLWHA who contracted HIV mainly via sexual contact was worse and both physical conditions and social integration were impacted. Under current epidemic characteristics, efforts to increase social support and enhance the implementation of supporting policy are

  7. Mechanically stable tuning fork sensor with high quality factor for the atomic force microscope.

    Science.gov (United States)

    Kim, Kwangyoon; Park, Jun-Young; Kim, K B; Lee, Naesung; Seo, Yongho

    2014-01-01

    A quartz tuning fork was used instead of cantilever as a force sensor for the atomic force microscope. A tungsten tip was made by electrochemical etching from a wire of 50 µm diameter. In order to have mechanical stability of the tuning fork, it was attached on an alumina plate. The tungsten tip was attached on the inside end of a prong of a tuning fork. The phase shift was used as a feedback signal to control the distance between the tip and sample, and the amplitude was kept constant using a lock-in amplifier and a homemade automatic gain controller. Due to the mechanical stability, the sensor shows a high quality factor (∼10(3)), and the image quality obtained with this sensor was equivalent to that of the cantilever-based AFM. © 2014 Wiley Periodicals, Inc.

  8. Questionnaire survey on factors influencing comfort with indoor environmental quality in Danish housing

    DEFF Research Database (Denmark)

    Frontczak, Monika Joanna; Andersen, Rune Vinther; Wargocki, Pawel

    2012-01-01

    for controlling indoor environmental quality in their homes should be used. 54% of them reported to have had at least one problem related to the indoor environment at home. A majority of those respondents did not try to search for information on how to solve the problem. This may suggest that there is a need....... A total of 2499 questionnaires were sent to inhabitants of the most common types of housing in Denmark; 645 persons replied (response rate of 26%). The results show that the main indoor environmental parameters (visual, acoustic and thermal conditions, and air quality) are considered by occupants......A questionnaire survey in Danish homes investigated the factors that influence occupants’ comfort. The questionnaire contained questions on inhabitants’ behaviour, their knowledge as regards building systems designed for controlling the indoor environment and the ways in which they achieve comfort...

  9. Water quality in turkey farms in Khemisset (Morocco) and potential risk factors.

    Science.gov (United States)

    El Allaoui, A; Rhazi Filali, F; Derouich, A

    2016-12-01

    The objectives of this study were to assess the microbiological and physical/chemical quality of water in broiler turkey farms in the province of Khemisset (north-western Morocco) and, based on a questionnaire, to ascertain potential risk factors for contamination of drinking water with faecal coliforms. A total of 80 samples were collected and analysed in 20 farms (four from each farm). At the main inlet to the water line at the entrance to each turkey house, 100% of the samples were of unacceptable quality in terms of faecal coliforms, Escherichia coli, faecal streptococci, sulphitereducing anaerobes and enterococci. A significant reduction in microbiological contamination of the water line (p farms, farmers are advised to protect wells from contamination and to install water purification units (pre-oxidation, coagulation, flocculation, disinfection). In addition, turkey houses and rearing equipment should be rigorously cleaned and disinfected between each batch of birds. © OIE (World Organisation for Animal Health), 2016.

  10. Association between lifestyle factors and quality-adjusted life years in the EPIC-NL cohort.

    Science.gov (United States)

    Fransen, Heidi P; May, Anne M; Beulens, Joline W J; Struijk, Ellen A; de Wit, G Ardine; Boer, Jolanda M A; Onland-Moret, N Charlotte; Hoekstra, Jeljer; van der Schouw, Yvonne T; Bueno-de-Mesquita, H Bas; Peeters, Petra H M

    2014-01-01

    The aim of our study was to relate four modifiable lifestyle factors (smoking status, body mass index, physical activity and diet) to health expectancy, using quality-adjusted life years (QALYs) in a prospective cohort study. Data of the prospective EPIC-NL study were used, including 33,066 healthy men and women aged 20-70 years at baseline (1993-7), followed until 31-12-2007 for occurrence of disease and death. Smoking status, body mass index, physical activity and adherence to a Mediterranean-style diet (excluding alcohol) were investigated separately and combined into a healthy lifestyle score, ranging from 0 to 4. QALYs were used as summary measure of healthy life expectancy, combining a person's life expectancy with a weight for quality of life when having a chronic disease. For lifestyle factors analyzed separately the number of years living longer in good health varied from 0.12 year to 0.84 year, after adjusting for covariates. A combination of the four lifestyle factors was positively associated with higher QALYs (P-trend healthy lifestyle score of 4 compared to a score of 0 was associated with almost a 2 years longer life in good health (1.75 QALYs [95% CI 1.37, 2.14]).

  11. The relationship of sleep complaints risk factors with sleep phase, quality, and quantity in Japanese workers.

    Science.gov (United States)

    Matsumoto, Yuuki; Uchimura, Naohisa; Ishida, Tetsuya; Morimatsu, Yoshitaka; Mori, Mihoko; Inoue, Miyako; Kushino, Nanae; Hoshiko, Michiko; Ishitake, Tatsuya

    2017-01-01

    Numerous studies have determined that lifestyle factors (smoking, drinking, snacking, etc.) and the bedroom environment can influence sleep. We developed a new sleep scale-the 3-Dimensional Sleep Scale (3DSS)-which measures three elements of sleep: phase, quality, and quantity. The purpose of this study is to determine which risk factors of sleep complaints are associated with these sleep elements. Data were obtained from 366 Japanese day workers (302 men and 64 women). Sleep condition was assessed with the 3DSS, and we also assessed various habits within 2 h of going to bed, including smoking, drinking, snacking, caffeine intake, mobile phone use, and working. We also asked about bedroom environmental conditions (noise, lighting, and temperature and humidity). Multivariate logistic regression analysis using the backward selection method (likelihood ratio) was used, with 3DSS scores as the outcome (i.e., over or under the cutoff). The results showed that smoking was associated with significantly greater odds ratio [2.71 (1.65-4.44)] of disordered sleep phase, while lighting as well as temperature and humidity led to greater odds [3.67 (1.55-8.68), 1.93 (1.20-3.11)] of poor sleep quality. Finally, only noise was significantly related to greater odds [1.98 (1.13-3.46)] of low sleep quantity. These findings indicated the various risk factors of sleep complaints could be associated with different sleep elements. This might help in the effective treatment of sleep complaints.

  12. Dysphagia: epidemiology, risk factors and impact on quality of life--a population-based study.

    Science.gov (United States)

    Eslick, G D; Talley, N J

    2008-05-01

    Data on the population epidemiology of dysphagia are scarce. Little is known about the prevalence, risk factors and impact on quality of life of dysphagia in the general community. To determine the magnitude and impact of dysphagia in the general community. A random sample of 1000 individuals of Sydney, Australia, were mailed a validated self-report questionnaire to assess dysphagia. Measured were dysphagia symptoms, potential mechanisms, risk factors, psychological disorders, quality of life and demographics. The response rate of included subjects (n = 926) was 73% (n = 672). Dysphagia ever was reported by 16% (n = 110). Multiple logistic regression analysis found that odynophagia was independently associated with gastro-oesophageal reflux disease (GERD) (OR = 3.41, 95% CI: 1.16-10.04). Intermittent dysphagia was independently associated with GERD (OR = 2.96, 95% CI: 1.76-4.98) and anxiety (OR = 1.09, 95% CI: 1.01-1.19). The presence of progressive dysphagia was independently associated with depression (OR = 1.34, 95% CI: 1.07-1.67). Progressive dysphagia was independently associated with reduced 'general health' (OR = 0.95, 95% CI: 0.90-0.99), while intermittent dysphagia was associated with a reduction in the 'role physical' subscale (OR = 0.98, 95% CI: 0.97-0.99). Dysphagia is remarkably common in the general population. GERD is a risk factor for dysphagia as well as odynophagia. Intermittent dysphagia was associated with anxiety, while progressive dysphagia was associated with depression.

  13. Determinant factors of quality of life in adult patients with eosinophilic esophagitis.

    Science.gov (United States)

    Lucendo, Alfredo J; Arias-González, Laura; Molina-Infante, Javier; Arias, Ángel

    2018-02-01

    Eosinophilic esophagitis (EoE) affects health-related quality of life (HRQoL). Data on determinant factors and the influence of dietary interventions are scarce. The objective of this article is to evaluate factors influencing HRQoL in adult EoE patients. We conducted a multicenter observational, cross-sectional study. A validated Spanish version of the self-administered Adult Eosinophilic Esophagitis Quality of Life (EoE-QoL-A) questionnaire and specific surveys were used. Multiple linear regression was used to identify and quantify determinant factors of HRQoL. Responses provided by 170 patients were assessed (73.5% male; mean age 33.5 ± 11.4 years). Overall mean score for the EoE-QoL-A index was 1.4 ± 0.8, with no differences between patients on dietary or pharmacological therapy (1.82 ± 0.8 vs. 1.62 ± 0.8; p  = 0.132). Disease anxiety showed the highest mean score (2.13 ± 0.9 points), followed by choking anxiety (1.97 ± 1.1); social impact (1.77 ± 1.1), and diet/eating impact (1.68 ± 0.9). Emotional impact had the lowest rating (1.15 ± 0.9), and only with a significantly worse score in patients under dietary restrictions. Recurrent food impaction, a higher educational level, dietary interventions and symptom duration were all independent determinant factors significantly impairing HRQoL. Female gender and empiric elimination diets negatively influenced on diet/eating impact. Recurrent food impaction, dietary interventions and symptom duration are the most important factors influencing the perception of HRQoL in adults with EoE.

  14. Factors affecting team leadership skills and their relationship with quality of cardiopulmonary resuscitation.

    Science.gov (United States)

    Yeung, Joyce H Y; Ong, G J; Davies, Robin P; Gao, Fang; Perkins, Gavin D

    2012-09-01

    This study aims to explore the relationship between team-leadership skills and quality of cardiopulmonary resuscitation in an adult cardiac-arrest simulation. Factors affecting team-leadership skills were also assessed. Forty advanced life-support providers leading a cardiac arrest team in a standardized cardiac-arrest simulation were videotaped. Background data were collected, including age (in yrs), sex, whether they had received any leadership training in the past, whether they were part of a professional group, the most recent advanced life-support course (in months) they had undergone, advanced life-support instructor/provider status, and whether they had led in any cardiac arrest situation in the preceding 6 months. Participants were scored using the Cardiac Arrest Simulation test score and Leadership Behavior Description Questionnaire for leadership skills. Process-focused quality of cardiopulmonary resuscitation data were collected directly from manikin and video recordings. Primary outcomes were complex technical skills (measured as Cardiac Arrest Simulation test score, preshock pause, and hands-off ratio). Secondary outcomes were simple technical skills (chest-compression rate, depth, and ventilation rate). Univariate linear regressions were performed to examine how leadership skills affect quality of cardiopulmonary resuscitation and bivariate correlations elicited factors affecting team-leadership skills.Teams led by leaders with the best leadership skills performed higher quality cardiopulmonary resuscitation with better technical performance (R = 0.75, p Leadership skills were not significantly associated with more simple technical skills such as chest-compression rate, depth, and ventilation rate. Prior training in team leader skills was independently associated with better leadership behavior. There is an association between team leadership skills and cardiac arrest simulation test score, preshock pause, and hands off ratio. Developing leadership

  15. Factors affecting general sleep pattern and quality of sleep in pregnant women.

    Science.gov (United States)

    Ölmez, Soner; Keten, Hamit Sırrı; Kardaş, Selçuk; Avcı, Fazıl; Dalgacı, Ahmet Ferit; Serin, Salih; Kardaş, Fatma

    2015-03-01

    To investigate factors affecting general sleep pattern and sleep quality in pregnant women. We assessed all pregnant women applied to Department of Obstetrics and Gynecology in Training and Research Hospital, School of Medicine, Kahramanmaraş Sütçü İmam University between 01 January 2014 and 01 March 2014. The participants were informed prior to the study and 100 pregnant women who gave their informed consent were included in the study. Questionnaires consisting sociodemographic characteristics, pregnancy history and the Epworth sleepiness scale were applied to the patients. Factors affecting general sleep pattern and sleep quality in pregnant women were compared. The mean age of 100 pregnant women was 27.9 years (min=16, max=42). The mean gestational age of participants was found to be 24.8 weeks (min=5, max=40). In obstetric history, 9% of women previously had a stillbirth and also 25% of women previously had curettage performed. There were tobacco use in 6% of participants and 6% of patients previously had been to the hospital due to a sleep disorder. The mean excessive daytime sleepiness scale score of pregnant women were found to be 4.56. There were no significant difference among the patients regarding regular exercise (p=0.137), tobacco use (p=0.784), accompanying disease (p=0.437) and excessive daytime sleepiness scale score. In our study, patients who had a complaint of sleep disorder before and who were previously admitted to a health center for this problem, were also found to suffer from the same problem during pregnancy. Treatment of sleep disorders in preconception period for women planning pregnancy is important in terms of mother and the baby's health. Pregnant women should be informed about factors reducing sleep quality during pregnancy.

  16. Sociodemographic factors affecting the quality of life of patients with asthma

    Directory of Open Access Journals (Sweden)

    Uchmanowicz B

    2016-03-01

    Full Text Available Bartosz Uchmanowicz,1 Bernard Panaszek,2 Izabella Uchmanowicz,1 Joanna Rosinczuk3 1Department of Clinical Nursing, 2Department and Clinic of Internal Diseases, Geriatry and Allergology, 3Department of Nervous System Diseases, Wroclaw Medical University, Wroclaw, Poland Background: In recent years, there has been an increased interest in the subjective quality of life (QoL of patients with bronchial asthma. Patients diagnosed with asthma experience a number of problems with regard to everyday activities and functions, which adversely affects their health-related QoL. Aim: The aim of this study is to analyze the sociodemographic factors affecting the QoL of patients with asthma. Patients and methods: The study comprised of 100 patients (73 females and 27 males aged 18–84 years (mean age 45.7 years treated in the Department and Clinic of Internal Diseases, Geriatrics and Allergology, Wroclaw Medical University. All patients with asthma who met the inclusion criteria participated in the study. We used medical record analysis and two questionnaires: the asthma quality of life questionnaire (AQLQ and the asthma control test. Up-to-date sociodemographic data were collected from all participants, including sex, age, marital status, education, and sources of income. Results: The sociodemographic variables that correlated positively with QoL in all domains of the AQLQ were professional activity and higher education level of respondents. Factors that negatively influenced the AQLQ domains were older age and lack of professional activity. Conclusion: This study shows that age, physical work, and lack of professional activity decreased the QoL in this patient group. It was found that higher education contributes to better QoL scores. Keywords: bronchial asthma, health related quality of life, sociodemographic factors

  17. Chronic pain and opioid abuse: Factors associated with health-related quality of life.

    Science.gov (United States)

    Jones, Jermaine D; Vogelman, Jonathan S; Luba, Rachel; Mumtaz, Mudassir; Comer, Sandra D

    2017-12-01

    While research on the separate relationships between health-related quality of life (HRQOL) and chronic pain, and HRQOL and opioid abuse has been sparse, even less work has investigated the factors associated with HRQOL in individuals who have both chronic pain and meet criteria for opioid use disorder. The data presented in this analysis should allow a better understanding the factors important to quality of life among this dual-diagnosed population. Individuals with dual diagnoses of chronic pain and opioid use disorder were recruited for clinical research studies at Columbia University Medical Center. Participants (n = 47) completed inventories to assess pain (Brief Pain Inventory), opioid (ab)use, and depression (Beck Depression Inventory). Variable from these and other inventories, along with demographic factors (age, race, sex, pain severity, depressive symptoms, duration of opioid use, route of opioid use, amount of opioid use) were entered into a regression analysis in order to identify the strongest predictors of SF-36 Health Survey score. In the bivariate analysis we found that demographic and drug use variables were rarely associated with HRQOL. Typically, ratings of pain severity and pain interference were the best predictors. In the multivariate analysis, we found that across the several HRQOL dimensions greater Brief Pain Inventory (BPI) ratings of pain "interference" and Beck Depression Inventory (BDI) scores were consistently associated with lower HRQOL. These data suggest that insufficient pain management and depression are significant variables contributing to lower quality of life among individuals with chronic pain and opioid use disorder. (Am J Addict 2017;26:815-821). © 2017 American Academy of Addiction Psychiatry.

  18. Constellations of dyadic relationship quality in stepfamilies: A factor mixture model.

    Science.gov (United States)

    Jensen, Todd M

    2017-12-01

    Stepfamilies are an increasingly common family form, marked by distinct challenges, opportunities, and complex networks of dyadic relationships that can transcend single households. There exists a dearth of typological analyses by which constellations of dyadic processes in stepfamilies are holistically analyzed. Factor mixture modeling is used to identify population heterogeneity with respect to features of mother-child, stepfather-child, nonresident father-child, and stepcouple relationships using a representative sample of 1,182 adolescents in mother-stepfather families with living nonresident fathers from Wave I of the National Longitudinal Study of Adolescent to Adult Health. Results favor a 4-class factor-mixture solution with class-specific factor covariance matrices. Class 1 (n = 302, 25.5%), the residence-centered pattern, was marked by high-quality residential relationships. Class 2 (n = 307, 26%), the inclusive pattern, was marked by high-quality relationships across all four dyads, with an especially involved nonresident father-child relationship. Class 3 (n = 350, 29.6%), the unhappy couple pattern, was marked by very low stepcouple relationship quality. Class 4 (n = 223, 18.9%), the parent-child disconnection pattern, was marked by distant relationships between youth and all three parental figures. The residence-centered and inclusive patterns encompassed some positive correlations between dyadic relationships whereas the unhappy couple and parent-child disconnection patterns encompassed some negative correlations between dyadic relationships. The patterns present with differences across sociodemographic and substantive covariates and highlight important opportunities for the development of new and innovative interventions, particularly to meet the needs of stepfamilies that reflect the parent-child disconnection pattern. (PsycINFO Database Record (c) 2018 APA, all rights reserved).

  19. Quality Minus Junk

    DEFF Research Database (Denmark)

    Asness, Clifford S.; Frazzini, Andrea; Heje Pedersen, Lasse

    We define a quality security as one that has characteristics that, all-else-equal, an investor should be willing to pay a higher price for: stocks that are safe, profitable, growing, and well managed. High-quality stocks do have higher prices on average, but not by a very large margin. Perhaps...... because of this puzzlingly modest impact of quality on price, high-quality stocks have high risk-adjusted returns. Indeed, a quality-minus-junk (QMJ) factor that goes long high-quality stocks and shorts low-quality stocks earns significant risk-adjusted returns in the U.S. and globally across 24 countries....... The price of quality – i.e., how much investors pay extra for higher quality stocks – varies over time, reaching a low during the internet bubble. Further, a low price of quality predicts a high future return of QMJ. Finally, controlling for quality resurrects the otherwise moribund size effect....

  20. Quality Minus Junk

    DEFF Research Database (Denmark)

    Asness, Clifford S.; Frazzini, Andrea; Heje Pedersen, Lasse

    We define a quality security as one that has characteristics that, all-else-equal, an investor should be willing to pay a higher price for: stocks that are safe, profitable, growing, and well managed. High-quality stocks do have higher prices on average, but not by a very large margin. Perhaps....... The price of quality – i.e., how much investors pay extra for higher quality stocks – varies over time, reaching a low during the internet bubble. Further, a low price of quality predicts a high future return of QMJ. Finally, controlling for quality resurrects the otherwise moribund size effect....... because of this puzzlingly modest impact of quality on price, high-quality stocks have high risk-adjusted returns. Indeed, a quality-minus-junk (QMJ) factor that goes long high-quality stocks and shorts low-quality stocks earns significant risk-adjusted returns in the U.S. and globally across 24 countries...

  1. Investigation on the Quality Factor Limit of the (111 Silicon Based Disk Resonator

    Directory of Open Access Journals (Sweden)

    Xin Zhou

    2018-01-01

    Full Text Available Quality factor is one of the most important parameters for a MEMS resonator. Most MEMS resonators are dominated by thermoelastic dissipation (TED. This paper demonstrates that the TED in a disk resonator that is made of (111 single-crystal silicon is surpassed by clamping loss. The stiffness-mass decoupling design method, combined with reducing the beam width, was used to engineer high QTED. Experiments show that Q of the (111 disk resonator have an upper boundary that is determined by the clamping loss caused by the unbalanced out-of-plane displacement. The origin of the out-of-plane displacement is explained by theory and simulation.

  2. Silicon nitride membrane resonators at millikelvin temperatures with quality factors exceeding 108

    Science.gov (United States)

    Yuan, Mingyun; Cohen, Martijn A.; Steele, Gary A.

    2015-12-01

    We study the mechanical dissipation of the fundamental mode of millimeter-sized, high quality-factor (Q) metalized silicon nitride membranes at temperatures down to 14 mK using a three-dimensional optomechanical cavity. Below 200 mK, high-Q modes of the membranes show a diverging increase of Q with decreasing temperature, reaching Q =1.27 ×108 at 14 mK, an order of magnitude higher than that reported before. The ultra-low dissipation makes the membranes highly attractive for the study of optomechanics in the quantum regime, as well as for other applications of optomechanics such as microwave to optical photon conversion.

  3. Modelling nutrient concentration to determine the environmental factors influencing grass quality

    CSIR Research Space (South Africa)

    Dudeni-Tlhone, N

    2010-10-01

    Full Text Available CONCENTRATION TO DETERMINE THE ENVIRONMENTAL FACTORS INFLUENCING GRASS QUALITY N. Dudeni-Tlhone1 , A. Ramoelo2, M. A. Cho2, P. Debba1 R. Mathieu2 1Logistics and Quantitative Methods, Built Environment, CSIR, P O. Box 395, Preotria, 0001 2Ecosystems and Earth... production yields desirable outputs, the environment on the other hand becomes under pressure. Animal production has also been reported to be on the increase since 1995. The main concern, however, is that the total stocking densities exceed the grazing...

  4. Factors associated with quality of life of people with dementia in long-term care facilities: a systematic review.

    Science.gov (United States)

    Beerens, Hanneke C; Zwakhalen, Sandra M G; Verbeek, Hilde; Ruwaard, Dirk; Hamers, Jan P H

    2013-09-01

    Quality of life has become an important outcome measure in dementia research. Currently there is no convincing evidence about which factors are associated with quality of life of people with dementia living in long-term care facilities. This study aims to investigate which factors are associated with quality of life, including factors associated with change over time, of people with dementia living in long-term care facilities. A systematic literature review was performed. Cochrane, Pubmed, CINAHL, Web of Science, and PsycINFO were searched. Three researchers independently assessed studies for eligibility. The inclusion criteria were: (1) the primary focus was on factors related to quality of life; (2) the study was performed in long-term care facilities; (3) the study regarded quality of life as multidimensional construct. Methodological quality of studies included in the review was assessed with a quality criteria checklist. Ten cross-sectional and three longitudinal articles were included in the review. In cross-sectional studies, depressive symptoms were negatively related to self-rated quality of life of people with dementia. The association between depressive symptoms and proxy-rated quality of life was less clear. Behavioural disturbances, especially agitation, appeared to be negatively related to proxy-rated quality of life. There appeared to be a negative relation between quality of life, activities of daily living and cognition, although this could not be confirmed in all studies. In longitudinal studies, depressive symptoms were negatively related and cognition was positively related to self-rated quality of life, whereas dependency and depressive symptoms were negatively related to proxy-rated quality of life. There are only few high quality studies that investigate associations of (change in) quality of life of people with dementia living in long-term care facilities. Our results suggest that depressive symptoms and agitation are related to lower

  5. Quality

    International Nuclear Information System (INIS)

    Burnett, N.; Jeffries, J.; Mach, J.; Robson, M.; Pajot, D.; Harrigan, J.; Lebsack, T.; Mullen, D.; Rat, F.; Theys, P.

    1993-01-01

    What is quality? How do you achieve it? How do you keep it once you have got it. The answer for industry at large is the three-step hierarchy of quality control, quality assurance and Total quality Management. An overview is given of the history of quality movement, illustrated with examples from Schlumberger operations, as well as the oil industry's approach to quality. An introduction of the Schlumberger's quality-associated ClientLink program is presented. 15 figs., 4 ills., 16 refs

  6. [Analysis of quality of life and its influencing factors of heroin dependent patients with methadone maintenance therapy in Dehong prefecture, Yunnan province].

    Science.gov (United States)

    Zhang, Guang; Liu, Hui; Xue, Hui; Shan, Duo; Yang, Yue-cheng; Duan, Song; Sun, Jiang-ping

    2011-11-01

    To investigate the quality of life of heroin dependent patients with methadone maintenance therapy and its influencing factors. Totally 462 heroin dependent patients who were receiving methadone maintenance therapy in Mangshi, Ruili, Longchuan, Yingjiang, Lianghe of Dehong prefecture, Yunnan province were randomly selected using proportional stratified sampling and interviewed with the WHO Quality of Life-BREF (QOL-BREF) in order to understand their quality of life in the fields of physical, psychological, social relationships, and environmental function during 4 weeks ago before interviewing, and the influencing factors of the quality of life. Among the 462 patients, 451 patients (97.6%) were male and 11 (2.4%) were female. Their average age was (37.80 ± 9.13) years old; 145 patients (31.39%) unmarried, 270 patients (58.44%) were married; 35.93% (166/462) of patients had primary school education, 37.23% (172/462) of patients had senior high school education. The patients had a score of 54.11 ± 6.74 for total quality of life and well being and a score of 14.31 ± 2.23, 13.28 ± 1.79, 13.90 ± 2.52, 12.63 ± 1.77 for physical, psychological, social relationships and environmental function, respectively. The quality of life for physical, psychological, social relationships and environmental function of the group of patients which ages between 30 to 40, unmarried, high middle school and above education, length of drug addiction more than 10 years before receiving treatment, treatment duration less than 6 months, incoming from temporary job were with lower score for total quality of life and well being. The quality of life for physical, psychological was lower for those aged between 16 and 30 when becoming first time drug user, which scores were 14.29 ± 2.25 and 13.22 ± 1.84, respectively. The quality of life for physical, psychological, social relationships of the group of patients which injecting drug only or injecting drug with other manners before receiving

  7. Relative Contributions of Different Lifestyle Factors to Health-Related Quality of Life in the Elderly

    Directory of Open Access Journals (Sweden)

    Xiaona Zhang

    2018-02-01

    Full Text Available Much of the previous literature has studied the relationship between individual lifestyle factors and the health-related quality of life (HRQOL. However, only a few studies combined them to explore their relative importance to the HRQOL in the elderly. This study assesses the HRQOL of the urban, rural, and institutionalized Chinese elderly and explores the relative contributions of different lifestyle factors to their HRQOL. The SF-36v2 Health Survey, the WHOQOL-OLD module, and the socio-demographic and lifestyle questionnaire were utilized in this study. Hierarchical regression was performed in order to analyze the results. The physical and mental component scores of the SF-36v2 survey were 47.05 ± 9.95 and 54.92 ± 9.92, respectively. The total score for the WHOQOL-OLD module was 73.01 ± 11.99, with institutionalized persons reporting lower scores. For the physical component of the elderly participants’ HRQOL, the R2 value changed the most (0.116 when exercise-and-labor-related factors were added in. For the mental component, sleep-related (0.054, and leisure-time-activity-related factors (0.053 caused the largest change of the R2 value. For the elderly-specific HRQOL, measured by the WHOQOL-OLD module, the leisure-time-activity-related factors caused the largest change in the R2 value (0.119, followed by exercise-and-labor-related factors (0.078. Heterogeneity was present among the three subgroups. In sum, compared with their community-dwelling counterparts, the HRQOL of institutionalized older people was relatively poor and different lifestyle factors contributed to the HRQOL differently.

  8. [Factors affecting the quality of life of elderly diabetic patients: survey in north and south Wanjiang river regions].

    Science.gov (United States)

    Jin, Yuelong; Ding, Lingling; Wang, Quanhai; He, Lianping; Nie, Miao; Song, Xiuli; Tang, Hui; Guo, Daoxia; Chen, Yan; Yao, Yingshui

    2014-02-01

    To investigate the quality of life of elderly diabetic patients and its influencing factors. By randomized cluster sampling, we conducted a survey in 1450 elderly residents (over 60 years old) living in urban, suburban and rural areas in south and north Anhui province. We evaluated the quality of life of the elderly diabetic patients using a demographic information questionnaire and full items on Short Form (36) Health Survey (SF-36). The elderly diabetic patients had lower scores in all dimensions of quality of life than the elderly without diabetes. Multiple linear regression analysis showed a linear regression in the quality of life among the elderly diabetic patients in terms of geographic regions, education, personality, sleep quality, and age. Elderly diabetic patients have generally poor quality of life, which was subjected to the influences by geographic regions, education, personality, sleep quality, and age, suggesting the necessity of corresponding interventions to improve the quality of life of these patients.

  9. Statistical Analysis of Spatiotemporal Heterogeneity of the Distribution of Air Quality and Dominant Air Pollutants and the Effect Factors in Qingdao Urban Zones

    Directory of Open Access Journals (Sweden)

    Xiangwei Zhao

    2018-04-01

    Full Text Available Air pollution has impacted people’s lives in urban China, and the analysis of the distribution and driving factors behind air quality has become a current research focus. In this study, the temporal heterogeneity of air quality (AQ and the dominant air pollutants across the four seasons were analyzed based on the Kruskal-Wallis rank-sum test method. Then, the spatial heterogeneity of AQ and the dominant air pollutants across four sites were analyzed based on the Wilcoxon signed-rank test method. Finally, the copula model was introduced to analyze the effect of relative factors on dominant air pollutants. The results show that AQ and dominant air pollutants present significant spatiotemporal heterogeneity in the study area. AQ is worst in winter and best in summer. PM10, O3, and PM2.5 are the dominant air pollutants in spring, summer, and winter, respectively. The average concentration of dominant air pollutants presents significant and diverse daily peaks and troughs across the four sites. The main driving factors are pollutants such as SO2, NO2, and CO, so pollutant emission reduction is the key to improving air quality. Corresponding pollution control measures should account for this heterogeneity in terms of AQ and the dominant air pollutants among different urban zones.

  10. Impact of selected risk factors on quality-adjusted life expectancy in Denmark

    DEFF Research Database (Denmark)

    Brønnum-Hansen, Henrik; Juel, Knud; Davidsen, Michael

    2007-01-01

    and 3 QALYs, respectively. Sedentary persons could expect to have about 7 fewer QALYs than physically active persons. Obesity shortened QALYs by almost 3 for men and 6 for women. CONCLUSIONS: Smoking, high alcohol consumption, physical inactivity, and obesity strongly reduce life expectancy and health......AIMS: The construct quality-adjusted life years (QALYs) combines mortality and overall health status and can be used to quantify the impact of risk factors on population health. The purpose of the study was to estimate the impact of tobacco smoking, high alcohol consumption, physical inactivity......, and overweight on QALYs. METHODS: Life tables for each level of exposure to the risk factor were constructed mainly on the basis of the Danish National Cohort Study. QALYs were estimated for exposed and unexposed by Sullivan's method, by combining life tables, EQ-5D self-classified health status from the Danish...

  11. Factors influencing health-related quality of life of overweight and obese children in South Korea.

    Science.gov (United States)

    Kim, Hee Soon; Park, Jiyoung; Ma, Yumi; Ham, Ok Kyung

    2013-10-01

    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 fat, and waist-hip ratio. The instruments included lifestyle patterns, psychosocial characteristics (stress, self-esteem, and depression), and HRQoL. The study found that significant predictors of HRQoL included self-esteem, depression, and physical stress; these variables accounted for 58.7% of the variance (p overweight and obese children should focus on psychological health, and consider social and environmental factors as well.

  12. Laser-vibrometric ultrasonic characterization of resonant modes and quality factors of Ge membranes

    Directory of Open Access Journals (Sweden)

    Oksana Trushkevych

    2014-04-01

    Full Text Available The vibrations of a single-crystal germanium (Ge membrane are studied in air and vacuum using laser vibrometry, in order to determine mechanical properties such as Q-factors, tensile stress, anisotropy, and robustness to shock. Resonance modes up to 3:2 are identified, giving a residual stress measurement of 0.22 GPa, consistent with the value obtained from x-ray relaxation studies. The membrane is found to be isotropic, with Q-factors ranging from around 40 at atmospheric pressure to over 3200 at mbar, significantly lower than those found in polycrystalline Ge micromechanical devices. The robustness to shock is explained through the high resonance mode frequencies and the dissipation mechanism into the substrate, which is a direct consequence of having a high quality film with low residual tensile stress, giving the potential for such films to be used in optoelectronic devices.

  13. Design of slotted high quality factor photonic-crystal nanocavities embedded in electro-optic polymers

    Science.gov (United States)

    Nakadai, Masahiro; Konoike, Ryotaro; Tanaka, Yoshinori; Asano, Takashi; Noda, Susumu

    2017-09-01

    We improve design quality factors of slotted photonic crystal nanocavities embedded in electro-optic polymers (EOPs), which enables control of resonant wavelengths without the use of light-absorbing free carriers. We form nanocavities by modifying single- and double-slotted line-defect waveguides with lattice-constant modulations analytically determined based on dispersions of the waveguides. A double-slotted nanocavity achieves a fourfold increase in Q factor (36 million) compared to a single-slotted nanocavity with similar modulation of lattice constants. Both structures can realize large concentration of light in the EOP region (50%), and resonant wavelength modulations of ∼0.01% are expected with applied voltage of 2 V.

  14. Resident Workflow and Psychiatric Emergency Consultation: Identifying Factors for Quality Improvement in a Training Environment.

    Science.gov (United States)

    Blair, Thomas; Wiener, Zev; Seroussi, Ariel; Tang, Lingqi; O'Hora, Jennifer; Cheung, Erick

    2017-06-01

    Quality improvement to optimize workflow has the potential to mitigate resident burnout and enhance patient care. This study applied mixed methods to identify factors that enhance or impede workflow for residents performing emergency psychiatric consultations. The study population consisted of all psychiatry program residents (55 eligible, 42 participating) at the Semel Institute for Neuroscience and Human Behavior, University of California, Los Angeles. The authors developed a survey through iterative piloting, surveyed all residents, and then conducted a focus group. The survey included elements hypothesized to enhance or impede workflow, and measures pertaining to self-rated efficiency and stress. Distributional and bivariate analyses were performed. Survey findings were clarified in focus group discussion. This study identified several factors subjectively associated with enhanced or impeded workflow, including difficulty with documentation, the value of personal organization systems, and struggles to communicate with patients' families. Implications for resident education are discussed.

  15. THE INFLUENCE OF MICROBIOLOGICAL POLLUTION FACTORS ON THE QUALITY OF CONSUMPTION EGGS

    Directory of Open Access Journals (Sweden)

    Ionut Silviu BEIA

    2014-04-01

    Full Text Available Eggs’ microbiological status intended for human consumption represents a determining factor of products’ quality and safety. The possible contamination of eggs with pathogene microorganisms presents a major risk for food safety. In comparison with meat and milk, eggs have a better capacity of conservation and therefore they are more resistant to the aggression of damaging factors. However it is a perishable product and its age as food may cause affections to consumers. One cannot find out the defficiencies and prevent the risks of food safety without the awareness and knowledge of microbiological, enzymatic and biochemical mechanisms that occur in the process of eggs’ becoming old. Thus, one can establish the critical limits in which eggs as food may endanger consumers’ health status.

  16. Household air quality risk factors associated with childhood pneumonia in urban Dhaka, Bangladesh.

    Science.gov (United States)

    Ram, Pavani K; Dutt, Dhiman; Silk, Benjamin J; Doshi, Saumil; Rudra, Carole B; Abedin, Jaynal; Goswami, Doli; Fry, Alicia M; Brooks, W Abdullah; Luby, Stephen P; Cohen, Adam L

    2014-05-01

    To inform interventions to reduce the high burden of pneumonia in urban settings such as Kamalapur, Bangladesh, we evaluated household air quality risk factors for radiographically confirmed pneumonia in children. In 2009-2010, we recruited children pneumonia and controls from a population-based surveillance for respiratory and febrile illnesses. Piped natural gas was used by 85% of 331 case and 91% of 663 control households. Crowding, a tin roof in the living space, low socioeconomic status, and male sex of the child were risk factors for pneumonia. The living space in case households was 28% less likely than in control households to be cross-ventilated. Particulate matter concentrations were not significantly associated with pneumonia. With increasing urbanization and supply of improved cooking fuels to urban areas, the high burden of respiratory illnesses in urban populations such as Kamalapur may be reduced by decreasing crowding and improving ventilation in living spaces.

  17. [Change patterns, influencing factors and predictors of quality of life in patients with Alzheimer's disease].

    Science.gov (United States)

    Li, Mingqiu; Huang, Haihua; Jiang, Gaoxuan; Mou, Xin; Chen, Qinghong

    2015-04-21

    To explore the change patterns, influencing factors and predictors of quality of life for 4 years in patients with Alzheimer's disease (AD). A total of 96 mild-moderate AD patients on combined therapies of medicine and recuperation were enrolled. Their clinical symptoms were graded by mini-mental state examination (MMSE), activity of daily living (ADL), global deterioration scale (GDS), neuropsychiatric inventory (NPI), Hamilton depression scale (HRSD), Hamilton anxiety scale (HAMA) and Pittsburgh sleep quality index (PQSI). And their qualities of life were evaluated by Quality of Life-Alzheimer's Disease (QOL-AD) at baseline and at the end of 1, 2, 3, 4 year. (1) During a 4-year follow-up, the scores of QOL-AD, MMSE, ADL, GDS, NPI, HRSD, HAMA and PQSI decreased markedly compared with baseline [(17.5±1.9), (12±3), (45±9), (5.2±0.8), (31±11), (20±6), (14±6), (14±4) vs (30.5±4.6), (21±4), (34±10), (3.3±0.9), (22±9), (18±6), (11±4), (12±4) respectively, t=25.31, 15.42, -7.16, -14.83, -5.56, -2.94, -4.45, -5.60, all Pqualities of life decreased significantly. (2) Spearman's correlation analysis showed that the scores of 4-year QOL-AD were correlated with the 4-year score changes of MMSE, ADL, GDS (r=0.344, 0.368, 0.213; P=0.002, 0.001, 0.047). (3) Multiple Logistic regression model showed that the baseline scores of NPI and HRSD were strong predictors of loss of quality of life (OR=1.697, 1.269; P=0.000, 0.006). And the area under the curve of receiver operating characteristic (ROC) of NPI and HRSD were 0.918 (95% CI: 0.844-0.991) and 0.878 (95% CI: 0.804-0.953) respectively. With the deterioration of AD, the quality of life decreases significantly and has correlations with the score changes of MMSE, ADL and GDS. High scores of NPI and HRSD are the important predictors for a loss of quality of life in AD patients. Early detection and timely interventions are necessary.

  18. Flexible time domain averaging technique

    Science.gov (United States)

    Zhao, Ming; Lin, Jing; Lei, Yaguo; Wang, Xiufeng

    2013-09-01

    Time domain averaging(TDA) is essentially a comb filter, it cannot extract the specified harmonics which may be caused by some faults, such as gear eccentric. Meanwhile, TDA always suffers from period cutting error(PCE) to different extent. Several improved TDA methods have been proposed, however they cannot completely eliminate the waveform reconstruction error caused by PCE. In order to overcome the shortcomings of conventional methods, a flexible time domain averaging(FTDA) technique is established, which adapts to the analyzed signal through adjusting each harmonic of the comb filter. In this technique, the explicit form of FTDA is first constructed by frequency domain sampling. Subsequently, chirp Z-transform(CZT) is employed in the algorithm of FTDA, which can improve the calculating efficiency significantly. Since the signal is reconstructed in the continuous time domain, there is no PCE in the FTDA. To validate the effectiveness of FTDA in the signal de-noising, interpolation and harmonic reconstruction, a simulated multi-components periodic signal that corrupted by noise is processed by FTDA. The simulation results show that the FTDA is capable of recovering the periodic components from the background noise effectively. Moreover, it can improve the signal-to-noise ratio by 7.9 dB compared with conventional ones. Experiments are also carried out on gearbox test rigs with chipped tooth and eccentricity gear, respectively. It is shown that the FTDA can identify the direction and severity of the eccentricity gear, and further enhances the amplitudes of impulses by 35%. The proposed technique not only solves the problem of PCE, but also provides a useful tool for the fault symptom extraction of rotating machinery.

  19. Factors influencing the quality of life of haemodialysis patients according to symptom cluster.

    Science.gov (United States)

    Shim, Hye Yeung; Cho, Mi-Kyoung

    2017-05-30

    To identify the characteristics in each symptom cluster and factors influencing the quality of life of haemodialysis patients in Korea according to cluster. Despite developments in renal replacement therapy, haemodialysis still restricts the activities of daily living due to pain and impairs physical functioning induced by the disease and its complications. Descriptive survey. Two hundred and thirty dialysis patients aged >18 years. They completed self-administered questionnaires of Dialysis Symptom Index and Kidney Disease Quality of Life instrument-Short Form 1.3. To determine the optimal number of clusters, the collected data were analysed using polytomous variable latent class analysis in R software (poLCA) to estimate the latent class models and the latent class regression models for polytomous outcome variables. Differences in characteristics, symptoms and QOL according to the symptom cluster of haemodialysis patients were analysed using the independent t test and chi-square test. The factors influencing the QOL according to symptom cluster were identified using hierarchical multiple regression analysis. Physical and emotional symptoms were significantly more severe, and the QOL was significantly worse in Cluster 1 than in Cluster 2. The factors influencing the QOL were spouse, job, insurance type and physical and emotional symptoms in Cluster 1, with these variables having an explanatory power of 60.9%. Physical and emotional symptoms were the only influencing factors in Cluster 2, and they had an explanatory power of 37.4%. Mitigating the symptoms experienced by haemodialysis patients and improving their QOL require educational and therapeutic symptom management interventions that are tailored according to the characteristics and symptoms in each cluster. The findings of this study are expected to lead to practical guidelines for addressing the symptoms experienced by haemodialysis patients, and they provide basic information for developing nursing

  20. THE QUALITY OF THE TOURIST DESTINATIONS A KEY FACTOR FOR INCREASING THEIR ATTRACTIVENESS

    Directory of Open Access Journals (Sweden)

    Daliborka Blazeska

    2015-12-01

    Full Text Available Taking into consideration that the tourism is extremely important for any country including Republic of Macedonia, it is necessary to pay attention to the quality of the tourist destinations and increasing of their attractiveness. So winners in the field of tourism will be those countries that have attractive tourist destination that will attract a lot of visitors. In this paper is defined the relationship between the factors of attractiveness of the destination and the achieving of competitiveness. In order to become competitive in the global market, the tourist destination has to be innovative and to continually search for new competitive advantages. Those kind of competitive advantages enable stable and long-term sustainable development of the tourist destination. In this paper special emphasis is put to the monitoring of the quality of the tourist destination with constant inquiries of the tourists (domestic and foreign regarding the most important segments of the quality of the tourist product which they are using, in order to perceive the satisfaction or the eventual dissatisfaction in order to be taken concrete strategies for the following period. The obtained results clearly confirm the dissatisfaction with the road infrastructure and signalization, the price of the services and the conditions for the stay, as well as the additional attractions that were expected to get.

  1. Factors Associated With Ulcer Healing and Quality of Life in Patients With Diabetic Foot Ulcer.

    Science.gov (United States)

    Spanos, Konstantinos; Saleptsis, Vasileios; Athanasoulas, Athanasios; Karathanos, Christos; Bargiota, Alexandra; Chan, Philip; Giannoukas, Athanasios D

    2017-03-01

    A prospective nonrandomized cohort study on consecutive diabetic patients with foot ulcer was undertaken to assess the factors associated with the healing process or limb salvage and evaluate the impact of their treatment on their quality of life. Quality of life was evaluated using Diabetic Foot Ulcer Scale-Short Form (DFS-SF) questionnaire before and after treatment. A total of 103 diabetic patients with ulcer (mean age 69.7 ± 9.6 years, 77% male) were treated and followed up for 12 months. Ulcer healing, minor amputation, and major amputation rates were 41%, 41%, and 18%, respectively, while the mortality rate was 18%. Ulcer healing was associated with University of Texas wound grade 1 and the Study of Infections in Diabetic feet comparing Efficacy, Safety and Tolerability of Ertapenem versus Piperacillin/Tazobactam trial's diabetic foot infection wound score. Limb loss was associated with nonpalpable popliteal artery, longer in-hospital stay, and delay until referral. Quality of life was improved in all domains of DFS-SF ( P < .0001) throughout the cohort of our patients regardless of their outcome, and no outcome (healing, minor amputation, or major amputation) was superior to other. Significant improvement was observed in all domains of hygiene self-management after consultation during the follow-up period.

  2. Quality of life in liver transplant recipients and the influence of sociodemographic factors.

    Science.gov (United States)

    Aguiar, Maria Isis Freire de; Braga, Violante Augusta Batista; Garcia, José Huygens Parente; Lima, Clébia Azevedo de; Almeida, Paulo César de; Souza, Angela Maria Alves E; Rolim, Isaura Letícia Tavares Palmeira

    2016-01-01

    To verify the influence of sociodemographic factors on the quality of life of patients after liver transplant. Cross-sectional study with 150 patients who underwent liver transplant at a referral center. A sociodemographic instrument and the Liver Disease Quality of Life questionnaire were applied. The analysis of variance (ANOVA) was performed, as well as multiple comparisons by the Tukey test and Games-Howell tests when p qualidade de vida dos pacientes depois do transplante de fígado. Estudo transversal, com 150 pacientes submetidos ao transplante de fígado em um centro de referência. Aplicou-se um instrumento sociodemográfico e o questionário Liver Disease Quality of Life. Foi realizada Análise de Variância (ANOVA) e comparações múltiplas pelo teste de Tukey e Games-Howell, quando pde instrução mais alto apresentaram maiores valores no domínio estigma da doença hepática (p=0,014). Houve interferência da renda nos domínios qualidade da interação social (p=0,033) e estigma da doença (p=0,046). Em metade dos domínios de qualidade de vida, houve influência de alguma variável sociodemográfica.

  3. Factors Influencing Continuous Quality Improvement Programme In Government Hospitals Of Sri Lanka

    Directory of Open Access Journals (Sweden)

    Somatunga L C

    2015-06-01

    Full Text Available Abstract Health care systems are accountable to their patients and society to provide quality cost effective care and to seek ways to improve that care. By doing this positive patient outcomes are ensured. Those factors which affect the delivery of a good service have to be identified. It is important to determine whether the environment of an organization type of hospitals plays an important role in determining the implementation of quality improvement programmes Methodology This was a hospital-based descriptive cross-sectional survey carried out in selected hospitals in Sri Lanka. Sixteen Line Ministry Hospitals where Quality Management Units are already in place were selected for the study. Staff working in these hospitals including doctors nurses and allied health staff was included. The data was collected using a self-administered questionnaire. The questionnaire was repeated after three weeks. Findings A total of 378 participants responded in the study. This study identified top management commitment training teamwork physical structure and monitoring system as independent variables that influence the CQI implementation programme. All the participants rated lower for teamwork and felt that teamwork had little influence on CQI programme implementation. The type of hospital has not influenced the implementation of CQI programme.

  4. Operation of a high quality-factor gyroscope in electromechanical nonlinearities regime

    Science.gov (United States)

    Taheri-Tehrani, P.; Defoort, M.; Horsley, D. A.

    2017-07-01

    This paper describes the operation of a high quality factor gyroscope in various regimes where electromechanical nonlinearities introduce different forms of amplitude-frequency (A-f) dependence. Experiments are conducted using an epitaxially-encapsulated 2  ×  2 mm2 quad-mass gyroscope (QMG) with a quality factor of 85 000. The device exhibits third-order Duffing nonlinearity at low bias voltages (15 V) due to the mechanical nonlinearity in the flexures and at high bias voltages (35 V) due to third-order electrostatic nonlinearity. At intermediate voltages (~26 V), these third-order nonlinearities cancel and the amplitude-frequency dependence is greatly reduced. A model is developed to demonstrate the connection between the electromechanical nonlinearities and the amplitude-frequency dependence, also known as the backbone curve. Gyroscope operation is demonstrated in each nonlinear operating regime and the key performance measures of the gyroscope’s performance, angle random walk (ARW) and bias instability, are measured as a function of drive-mode vibration amplitude. We find that low ARW can be achieved even though the gyroscope’s drive mode exhibits large amplitude-frequency dependence, and that bias instability is largely independent of the operating regime.

  5. Nanomechanical control of optical field and quality factor in photonic crystal structures

    Science.gov (United States)

    Cotrufo, Michele; Midolo, Leonardo; Zobenica, Žarko; Petruzzella, Maurangelo; van Otten, Frank W. M.; Fiore, Andrea

    2018-03-01

    Actively controlling the properties of localized optical modes is crucial for cavity quantum electrodynamics experiments. While several methods to tune the optical frequency have been demonstrated, the possibility of controlling the shape of the modes has scarcely been investigated. Yet an active manipulation of the mode pattern would allow direct control of the mode volume and the quality factor and therefore of the radiative processes. In this work, we propose and demonstrate a nano-optoelectromechanical device in which a mechanical displacement affects the spatial pattern of the electromagnetic field. The device is based on a double-membrane photonic crystal waveguide which, upon bending, creates a spatial modulation of the effective refractive index, resulting in an effective potential well or antiwell for the optical modes. The change in the field pattern drastically affects the optical losses: large modulations of the quality factors and dissipative coupling rates larger than 1 GHz/nm are predicted by calculations and confirmed by experiments. This concept opens new avenues in solid-state cavity quantum electrodynamics in which the field, instead of the frequency, is coupled to the mechanical motion.

  6. Quality-Shaping Factors and Endodontic Treatment amongst General Dental Practitioners with a Focus on Denmark

    Directory of Open Access Journals (Sweden)

    Sune Demant

    2012-01-01

    Full Text Available There is a gap between the endodontic outcome that can be achieved and the outcome observed on the basis of worldwide general dental practitioner data. The quality of root canal treatment (RCT is shaped by the dentist's knowledge, attitude, and skills, but it may also be influenced by the patient's demands and degree of satisfaction. The topic has only been sparsely investigated. Although dental health has increased over the years in Denmark, the number of performed root fillings has also increased, probably because the number of tooth extractions have declined and more molar teeth have been treated. Caries appears to be the main cause for performing RCT and a preventive approach by employing stepwise excavation may reduce RCT, but this strategy does not remove the gap. Factors influencing RCT quality could be the status on adoption of nickel-titanium rotary technology, more focus on infection control (rubber dam use, knowledge of factors important for prognosis, as dentists often think that they are good at doing RCT, but often perform inadequately, an alteration of clinician's awareness of their performance in the context of dental practices, seems warranted. Finally, the development of new preventive modalities for pulp and apical inflammation are crucial.

  7. Confirmatory factor analysis for indicators of perceived environmental quality of the stadium (IPEQS).

    Science.gov (United States)

    Manca, Sara; Fornara, Ferdinando

    2015-09-01

    Studies conducted in the 1980s (see Canter et al. in Football in its place. An environmental psychology of football grounds. Routledge, London, 1989) highlighted the prominent role of the spatial-physical features of football grounds in influencing users' perception of safety, comfort, and general satisfaction towards the stadium experience. In particular, the importance of fulfilling the spectators' needs of personal space (e.g. presence of an open view, proper distance between the seats) and movement opportunity was analysed. The aim of this study is to confirm the factorial structure of a set of indicators--the IPEQS--concerning the perceived quality of an array of aspects (i.e. architectural, social, functional, and safety issues) related to the stadium design. Participants (N = 255), who were selected on the basis of their stadium experience, filled in a self-report questionnaire measuring a set of indicators developed on the basis of both validated tools [i.e. the perceived residential environment quality indicators (PREQIs): Bonaiuto et al. in J Environ Psychol 19:331-352, 1999] and outcomes of semi-structured interviews. Confirmatory factor analyses (CFA) were performed for each scale, and reliability assessments were then carried out for each indicator. IPEQS' factorial structures found through the CFA procedure substantially confirm the results of exploratory factor analyses run with previous data. Outcomes of this study should provide a useful tool for managers and designers of football grounds, in order to improve the overall experience of the spectators.

  8. Quality of life of Chinese schizophrenia outpatients in Hong Kong: relationship to sociodemographic factors and symptomatology.

    Science.gov (United States)

    Xiang, Yu-Tao; Weng, Yong-Zhen; Leung, Chi-Ming; Tang, Wai-Kwong; Ungvari, Gabor S

    2007-05-01

    To explore the relationships between sociodemographic and clinical factors and quality of life (QOL) in a cohort of Chinese schizophrenia outpatients. Two hundred subjects with a diagnosis of DSM-IV schizophrenia aged 18-60 years were randomly selected, and their sociodemographic and clinical characteristics including psychotic and depressive symptoms, extrapyramidal symptoms (EPS), and quality of life were assessed. Correlation and multiple regression analyses were used to evaluate the relationships of sociodemographic, clinical data and QOL. Compared to normative data obtained for the general population in Hong Kong, significantly lower scores in physical, psychological, and social QOL domains were found in the patient group. History of suicidal attempts and the presence of positive, negative, depressive, anxiety and EPS symptoms were all significantly correlated with QOL in schizophrenia patients. After controlling for the effects of variables that were significantly correlated with QOL in the correlation analysis, however, only depressive symptoms were still significantly correlated with each QOL domain. Multiple regression analysis showed that depressive symptoms predicted all QOL domains, while positive symptoms predicted overall and physical QOL domains. Chinese outpatients with schizophrenia had poorer QOL than the general population. In this patient population, QOL was more strongly related to the severity of depressive symptoms and was independent of sociodemographic factors.

  9. Single-crystal diamond nanomechanical resonators with quality factors exceeding one million.

    Science.gov (United States)

    Tao, Y; Boss, J M; Moores, B A; Degen, C L

    2014-04-08

    Diamond has gained a reputation as a uniquely versatile material, yet one that is intricate to grow and process. Resonating nanostructures made of single-crystal diamond are expected to possess excellent mechanical properties, including high-quality factors and low dissipation. Here we demonstrate batch fabrication and mechanical measurements of single-crystal diamond cantilevers with thickness down to 85 nm, thickness uniformity better than 20 nm and lateral dimensions up to 240 μm. Quality factors exceeding one million are found at room temperature, surpassing those of state-of-the-art single-crystal silicon cantilevers of similar dimensions by roughly an order of magnitude. The corresponding thermal force noise for the best cantilevers is ~5·10(-19) N Hz(-1/2) at millikelvin temperatures. Single-crystal diamond could thus directly improve existing force and mass sensors by a simple substitution of resonator material. Presented methods are easily adapted for fabrication of nanoelectromechanical systems, optomechanical resonators or nanophotonic devices that may lead to new applications in classical and quantum science.

  10. Surface Water Quality Assessment and Prioritize the Factors Pollute This Water Using Topsis Fuzzy Hierarchical Analysis

    Directory of Open Access Journals (Sweden)

    Mehdi Komasi

    2017-03-01

    Full Text Available Background & Objective: Nowadays, according to growth of industry and increasing population, water resources are seriousely shortened. This lack of water resources will require special management to be considered in industry and agriculture. Among the various sources of water, surface waters are more susceptible to infection. The most important of these sources of pollution are industrial pollution, detergent, pesticides, radioactive materials, heat and salt concentration.  Materials & methods: In this article, at first the importance of each pollutant will be evaluated base on the effects and its results and then quality evaluation of surface water will be studied. In order to assess the relative importance of these pollutants primarily using TOPSIS software, prioritize these factors as one of the hierarchical analysis and then is modeled with decision tree method using Weka software, the importance of each factor is evaluated and if it does not meet the minimal importance of the decision tree will be removed. Results: The results obtained from the Topsis fuzzy analysis indicate that surface water and groundwater are exposed to pollution about 74% and 26% respectively among the six pollutants examined in this study. In addition, results obtaned from the hierarchical tree in software Weka has shown that the heat factor, soluble salts and industrial pollutants give impac factor or purity about 0.1338, 0.0523 and 1.2694 respectively. Conclusion: Surface water is at greater risk of being polluted compared with groundwater. The heat factor and low concentration of dissolved salts have the low impact and industrial pollutants are considered as the most influential factors in surface water pollution.

  11. Post-Mastectomy and Phantom Breast Pain: Risk Factors, Natural History, and Impact on Quality of Life

    National Research Council Canada - National Science Library

    Dworkin, Robert

    1999-01-01

    ... from substantial reductions in quality of life. The primary aims of this research project are to identify risk factors for these chronic pain syndromes following surgical procedures for breast cancer, characterize their natural history...

  12. FACTORES QUE AFECTAN LA CALIDAD SEMINAL EN TOROSFACTORS AFFECTING SEMINAL QUALITY IN BULLS

    Directory of Open Access Journals (Sweden)

    Lozano Marquez Harvey

    2009-05-01

    Full Text Available La calidad seminal de los toros se puede ver afectada por múltiples causas tanto de origen infeccioso o no infeccioso. El entendimiento adecuado de estas causas es de gran importancia ya que de este modo se pueden tomar los correctivos necesarios ya sea para tratar al toro, o en otros casos para descartarlo del sistema productivo del cual haga parte. No se debe olvidar como la presencia física del toro se puede dar a partir de un banco de germoplasma (semen congelado, el cual puede tener problemas de calidad no inherentes al proceso de criopreservación sino a factores infecciosos o no infecciosos previos a la congelación. Los problemas de calidad seminal se verán reflejados en los diferentes parámetros reproductivos del sistema productivo, lo que a su véz será de gran relevancia al hacer un balance de pérdidas y ganancias de una ganadería tanto de ganado de carne como de leche.Semen quality of bulls can be affected by multiple causes, both infectious and non infectious. Proper understanding of these causes is imperative, either to take the necessary correctives to treat the bull or to discard it from the productive system. It is important not to forget that the physical presence of the bull can be from a germoplasm bank (frozen semen which can have quality problems not related to the cryopreservation procedure but to infectious or not infectious factors before freezing. Seminal quality problems will be reflected on different reproductive parameters of the productive system and these will be highly relevant when estimating earnings and losses of the productive system, both for beef or milk production.

  13. The Fourth/Final-Year University Student Future Professional Career: Analysis of Factors and Personal Qualities

    Directory of Open Access Journals (Sweden)

    V. Lamanauskas

    2017-12-01

    Full Text Available Career management as a lifelong lasting process becomes very actual in today's modern society because of many reasons. The environment becomes turbulent, in a general sense; therefore, it is natural that career environment, basically, is chaotic as well. Nevertheless, career for many people is, undoubtedly, very important, because it is directly related to life quality. Professional activity satisfies almost all human needs: physiological, safety, social, attainment, self-realisation, independence, autonomy and other. The efficiency of the mentioned activity and the ability of the personality to construct his career are closely related things. Individual's career process studies are especially popular recently, because deeper career perception helps to understand the most important relations between man and work, career management and constant learning, helps not only to know man's abilities, but also the abilities to give oneself to modern environment, to understand career projection possibilities, to plan one's professional future. Seeking to analyse final-year university student position regarding career questions, a written form survey was carried out. The research was carried out between September 2015 and March 2016. The research sample (185 was structured applying a consecutive 'bunch' system. The respondents from three Lithuanian universities Klaipėda, Vilnius and Šiauliai, were selected in the sample. Professional career parameters were evaluated: career conception, the importance of work values and abilities, study influence, promoting and limiting factors and personal qualities. The research is grounded on a mixed strategy, when quantitative and qualitative research approach is combined. The obtained results, based on qualitative analysis, about professional personal career promoting and limiting factors and personal qualities are presented in this research.

  14. Factors Associated with Pain, Disability and Quality of Life in Patients Suffering from Frozen Shoulder

    Directory of Open Access Journals (Sweden)

    Farshid Bagheri

    2016-07-01

    Full Text Available Background: Frozen shoulder is resulting in limb disability and reduction of quality of life but the factors associated with patients’ disability and quality of life is not clear. To assess pain, disability, the quality of life and factors associated with them in patients suffering from frozen shoulder.  Methods: We enrolled 120 patients (37 men and 83 women with phase-II idiopathic frozen shoulder in our cross-sectional study. Demographic data were collected and shoulder range of motion was measured in four different directions (elevation, abduction, external and internal rotation in both upper limbs. Patients were asked to fill out Visual Analog Scale for pain (VAS and, Short-Form Health Survey questionnaire (SF-36 as well as Disabilities of the Arm, Shoulder and Hand (DASH questionnaires. We asked the patients to fill out the Hamilton anxiety and depression questionnaires. Results: The mean of VAS pain, DASH, PCS, and MCS scores were 69(18, 53(17, 35(8.0, and 42(10 respectively. All the domains of SF36 questionnaires where below the normal population except physical function. VAS pain score was correlated to Hamilton depression scores in both bivariate and mulivarilable analysis. DASH score were correlated to sex, age, ROM, and both Hamilton anxiety and depression scores; However, DASH score only impact with Hamilton anxiety and ROM independently. PCS is correlated to age and MCS to Hamilton depression. Conclusion: Patient with frozen shoulder are more suffering from pain and disability secondary to psychiatric parameters such as depression and anxiety than demographic features or even restriction of range of motion.

  15. Slag melt granulation and factors affecting the quality of Granulated slag

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    Володимир Петрович Кравченко

    2015-10-01

    Full Text Available An analysis of the state of slags recycling in foreign countries was carried out. A modern principle was put forward in the article: blast furnace is an apparatus for manufacturing of two basic types of products : cast iron and slag. Granulation, as the primary recycling of slag melt fixes the structure with certain properties at rapid cooling. An analysis of the existing methods of granulation was carried out and factors influencing the quality of granular slag were determined, as well as the ways of obtaining granular slag with the required physical and mechanical characteristics. The main factors of granulated slags quality, employed for manufacturing of binding materials are chemical composition and the structure of fine granulated particles. All wet methods of granulation are characterized by high humidity of granulated slag, its value reaching 24,5%, due to increase in granules’ porosity. Real options for reducing humidity of granulated slag may include: development of the process of granulation, ensuring manufacturing of products with increased density and low content of fine fractions, dehydration of slag in high bunkers and stacks at sufficient soaking time and slag blowdown with a stream moving downwards. Using mechanical granulators and gaseous energy carriers (air for melt’s dispersion is an efficient way of reducing water consumption for granulation (semi-dry or dry methods of granulation. It also makes it possible to reduce r consumption of water, supplied for granulation from 3,0 to 0,7-1,5m3/min. Application of air blast for melt’s dispersion influences its fractional composition and grain shape in the slag: the content of the fraction less than 1,25mm reduces to 49,1%, as compared to conventional 92,8%. The content of spherical grains is with tough surface is 33%, it promoting reduction of residual humidity of granulated slag. Thus, application of air blast for granulation of slags is an efficient way of obtaining high

  16. Convenience-based food purchase patterns: identification and associations with dietary quality, sociodemographic factors and attitudes.

    Science.gov (United States)

    Peltner, Jonas; Thiele, Silke

    2018-02-01

    The present study aimed to derive food purchase patterns considering the convenience level of foods. Associations between identified patterns and dietary quality were analysed, as well as household characteristics associated with the dietary patterns. A Convenience Food Classification Scheme (CFCS) was developed. After classifying basic food groups into the CFCS, the formed groups were used to apply a factor analysis to identify convenience-based food purchase patterns. For these patterns nutrient and energy densities were examined. Using regression analysis, associations between the adherence to the patterns and household characteristic and attitude variables were analysed. The study used representative German food purchase data from 2011. Approximately 12 million purchases of 13 131 households were recorded in these data. Three convenience-based patterns were identified: a low-convenience, a semi-convenience and a ready-to-eat food pattern. Tighter adherence to the semi-convenience pattern was shown to result in the lowest nutrient and highest energy densities. Important factors influencing adherence to the patterns were household size, presence of children and attitudes. Working full-time was negatively associated with adherence to the low-convenience pattern and positively with the ready-to-eat pattern. Convenience foods were an important part of households' food baskets which in some cases led to lower nutritional quality. Therefore, it is important to offer convenience foods higher in nutrient density and lower in energy density. Interventions targeted on enhancing cooking skills could be an effective strategy to increase purchases of unprocessed foods, which, in turn, could also contribute to an improved diet quality.

  17. Dissection of genetic and environmental factors involved in tomato organoleptic quality

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    Frusciante Luigi

    2011-03-01

    Full Text Available Abstract Background One of the main tomato breeding objectives is to improve fruit organoleptic quality. However, this task is made somewhat challenging by the complex nature of sensory traits and the lack of efficient selection criteria. Sensory quality depends on numerous factors, including fruit colour, texture, aroma, and composition in primary and secondary metabolites. It is also influenced by genotypic differences, the nutritional regime of plants, stage of ripening at harvest and environmental conditions. In this study, agronomic, biochemical and sensory characterization was performed on six Italian heirlooms grown in different environmental conditions. Result We identified a number of links among traits contributing to fruit organoleptic quality and to the perception of sensory attributes. PCA analysis was used to highlight some biochemical, sensory and agronomic discriminating traits: this statistical test allowed us to identify which sensory attributes are more closely linked to environmental conditions and those, instead, linked to the genetic constitution of tomato. Sweetness, sourness, saltiness and tomato flavour are not only grouped in the same PCA factor, but also result in a clear discrimination of tomato ecotypes in the three different fields. The three different traditional varieties cluster on the basis of attributes like juiciness, granulosity, hardness and equatorial diameter, and are therefore more closely related to the genetic background of the cultivar. Conclusion This finding suggests that a different method should be undertaken to improve sensory traits related to taste perception and texture. Our results might be used to ascertain in what direction to steer breeding in order to improve the flavour characteristics of tomato ecotypes.

  18. Perceived quality of life in obsessive-compulsive disorder: related factors

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    Saiz-Ruiz Jeronimo

    2006-05-01

    Full Text Available Abstract Background Obsessive-compulsive disorder (OCD affects young adults and has great impact on the social, emotional and work spheres. Methods We measured perceived quality of life (QOL in OCD patients, in order to analyse socio-demographic and clinical factors that may be associated with QOL perception. 64 OCD outpatients were assessed with the Mini International Neuropsychiatric Interview for DSM-IV, the Yale-Brown Obsessions and Compulsions scale (Y-BOCS, Hamilton's depression scale and the SF-36 self-administered global QOL perception scale. Results We found a correlation among Hamilton's scale scores and all SF-36 subscales. The severity of the obsessive-compulsive disorder was correlated with all SF-36 subscales and with the highest scores in Hamilton's scale. The obsessions subscale was correlated to all SF-36 subscales, while the compulsions subscale was correlated only to social functioning, emotional role, mental health and vitality. Compulsions were not related to general health perception. There were significant differences between OCD patients and the Spanish general population in all SF-36 subscales except those related to physical health and pain. Gender, age, age of onset of the disorder, years of evolution and marital status of the patients did not significantly affect quality of life perception. Being employed was related to better scores in the subscale of physical role. Patients with medical comorbidity scored lower in the subscales of general health, social functioning and mental health. Patients with comorbid psychiatric disorders had worse scores in the subscales of pain, general health, social functioning and mental health. Conclusion Quality of life perception was different in OCD patients and the general population. Quality of life perception was related to severity of the disorder, physical and psychiatric comorbidity and employment status.

  19. Evaluation of factors affecting the diet quality of patients with orthodontic malocclusion

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    Nehir Canıgür Bavbek

    2016-08-01

    Full Text Available OBJECTIVE: The aim was to assess factors which may contribute to the diet quality of adolescents with orthodontic malocclusion. MATERIALS and METHOD: Demographic and dietary data of 46 girls and 30 boys (mean age 11.4 ± 1.4 years, with good oral and systemic health were obtained. Data were evaluated in relation to skeletal growth pattern, malocclusion, overjet, overbite, number of posterior functional tooth units (PFTU and parental education level. Dietary intake was measured by using 24-hour dietary recall method, and diet quality was assessed by using the Healthy Eating Index-2010 (HEI-2010. Energy and nutrient intake was calculated by using the Nutrition Information System (BeBiS program. Intergroup comparisons were performed by using Mann-Whitney U and Kruskal-Wallis tests. RESULTS: Maternal education level affected the total HEI (p = 0.002, total fruit (p = 0.007, whole fruit (p = 0.018 and refined grains (p = 0.044 scores. Skeletal growth patterns, malocclusions, overjet and overbite did not alter the diet quality. Overbite was positively correlated with energy (r = 0.297, p = 0.009, carbohydrate (r = 0.238, p = 0.039 and protein (r = 0.305, p = 0.007 intake. Overjet was positively correlated with greens and beans scores (r = 0.238, p = 0.038. PFTU was positively correlated with the body mass index (r = 0.327, p = 0.004. CONCLUSION: From a clinical perspective, malocclusion may not have a significant impact on the nutritional habits of adolescents. Maternal educational level, however, was found to be the main determinant for the diet quality during adolescence.

  20. Factors influencing quality of life in patients with inherited ichthyosis: a qualitative study in adults using focus groups.

    Science.gov (United States)

    Mazereeuw-Hautier, J; Dreyfus, I; Barbarot, S; Serrentino, L; Bourdon-Lanoy, E; Ezzedine, K; Maza, A; Aujoulat, I; Le Rhun, A

    2012-03-01

    There is limited information regarding quality of life in patients with inherited ichthyosis. To identify factors influencing quality of life in patients with inherited ichthyosis. The study used focus groups and involved adult patients suffering from inherited ichthyosis from three French hospital centres. Group discussions were conducted by two facilitators and were continued until data saturation was reached. The verbatim transcripts were analysed independently by two investigators. Categories considered as key factors in the modulation of quality of life were negotiated until agreement was obtained. Data saturation was reached after the fifth group. A total of 25 patients affected by various forms of ichthyosis attended these focus groups. The identified factors influencing quality of life were related to physical health, daily life, relations with others or oneself. However, together with difficulties related to ichthyosis, patients also underlined some positive aspects of the disease and described specific measures used to improve their quality of life. This is the first study investigating the different factors that could impact quality of life in patients with ichthyosis. This provides an essential framework from which physicians can develop strategies to improve patient care and quality of life and to develop a specific quality of life questionnaire. © 2011 The Authors. BJD © 2011 British Association of Dermatologists.

  1. Student Motivation and the "Feel Good" Factor: An Empirical Examination of Motivational Predictors of University Service Quality Evaluation

    Science.gov (United States)

    Chong, Yit Sean; Ahmed, Pervaiz K.

    2015-01-01

    With the globalisation of the higher education industry, service quality in the higher education services is seen as a vital factor in determining a university's competitive advantage. The purpose of this study is to extend current conceptualisation of quality research in higher education by investigating the influence of self-determination and…

  2. Factors Associated with Subjective Quality of Life of Adults with Autism Spectrum Disorder: Self-Report versus Maternal Reports

    Science.gov (United States)

    Hong, Jinkuk; Bishop-Fitzpatrick, Lauren; Smith, Leann E.; Greenberg, Jan S.; Mailick, Marsha R.

    2016-01-01

    We examined factors related to subjective quality of life (QoL) of adults with autism spectrum disorder (ASD) aged 25-55 (n = 60), using the World Health Organization Quality of Life measure (WHOQOL-BREF). We used three different assessment methods: adult self-report, maternal proxy-report, and maternal report. Reliability analysis showed that…

  3. Quality of Life after Young Ischemic Stroke of Mild Severity Is Mainly Influenced by Psychological Factors.

    Science.gov (United States)

    de Bruijn, Marienke A A M; Synhaeve, Nathalie E; van Rijsbergen, Mariëlle W A; de Leeuw, Frank-Erik; Mark, Ruth E; Jansen, Ben P W; de Kort, Paul L M

    2015-10-01

    Long-term prognosis in terms of quality of life (QoL) in young stroke patients is of importance because they usually have a long life expectancy and extensive daily life demands. We aimed at determining which medical and psychological factors influence the QoL in young stroke patients (Young ischemic stroke patients admitted to the St. Elisabeth Hospital and the TweeSteden Hospital, Tilburg, the Netherlands, between 2000 and 2010 were included. One hundred seventy patients and 61 controls filled out the following questionnaires: (1) the Hospital Anxiety and Depression Scale, (2) the Fatigue Assessment Scale, and (3) the shortened World Health Organization Quality of Life scale. Using linear multiple regression analysis, we assessed the factors influencing QoL. QoL did not differ significantly between patients (median modified Rankin Scale score at follow-up, 0) and controls after a mean follow-up of 4.5 (standard deviation, 2.8) years. The presence of excessive fatigue was associated with lower scores on all domains of the QoL (P ≤ .003), but not for general health domain (P = .010). Similarly, depression was associated with worse QoL on the physical (P = .004) and psychological (P = .001) domains and anxiety with lower scores on the psychological (P stroke-specific factors and QoL. Fatigue and to a lesser extent depression and anxiety affect the QoL in young adults after ischemic stroke of mild severity. Therefore, young stroke patients should be informed about, screened, and, if possible, treated for fatigue, depression, and anxiety. Copyright © 2015 National Stroke Association. Published by Elsevier Inc. All rights reserved.

  4. Quality of Life and Bariatric Surgery: Cross-Sectional Study and Analysis of Factors Influencing Outcome.

    Science.gov (United States)

    Janik, Michał Robert; Rogula, Tomasz; Bielecka, Ilona; Kwiatkowski, Andrzej; Paśnik, Krzysztof

    2016-12-01

    The aims of our study were to compare quality of life (QOL) in obese patients after bariatric surgery with that in controls seeking surgery and to investigate which factors are associated with QOL in the Moorehead-Ardelt Quality of Life Questionnaire II (MA II). This was a cross-sectional study. The operated group consisted of patients after laparoscopic sleeve gastrectomy or laparoscopic Roux-en-Y gastric bypass. The MA II was administered by e-mail to 305 patients 12-18 months after surgery. The control groups consisted of 101 obese patients. We compared the QOL scores and considered good and very good outcomes to be satisfactory. Multiple logistic regression and correlation analysis was performed to identify factors associated with QOL. In the operated group, the total MA II score was 1.70 ± 0.76, which was higher than 0.59 ± 1.17 in the control group. The score adjusted for the type of surgery was comparable. The prevalence of satisfactory QOL outcomes was similar in both post-operative subgroups and was still higher than in the control group. We identified four factors associated with higher QOL in obese patients. Weight loss was not correlated with total score in MAII. This study demonstrates that patients after bariatric surgery have a higher score in MA II, which reflects better QOL. The scoring adjusted by type of operation is comparable. QOL among obese patients is dependent on age, gender, history of bariatric surgery, and partnered status. Body mass reduction was not associated with outcome in MAII.

  5. Factors Determining Quality of Care in Family Planning Services in Africa: A Systematic Review of Mixed Evidence.

    Science.gov (United States)

    Tessema, Gizachew Assefa; Streak Gomersall, Judith; Mahmood, Mohammad Afzal; Laurence, Caroline O

    2016-01-01

    Improving use of family planning services is key to improving maternal health in Africa, and provision of quality of care in family planning services is critical to support higher levels of contraceptive uptake. The objective of this systematic review was to synthesize the available evidence on factors determining the quality of care in family planning services in Africa. Quantitative and qualitative studies undertaken in Africa, published in English, in grey and commercial literature, between 1990 and 2015 were considered. Methodological quality of included studies was assessed using standardized tools. Findings from the quantitative studies were summarized using narrative and tables. Client satisfaction was used to assess the quality of care in family planning services in the quantitative component of the review. Meta-aggregation was used to synthesize the qualitative study findings. From 4334 records, 11 studies (eight quantitative, three qualitative) met the review eligibility criteria. The review found that quality of care was influenced by client, provider and facility factors, and structural and process aspects of the facilities. Client's waiting time, provider competency, provision/prescription of injectable methods, maintaining privacy and confidentiality were the most commonly identified process factors. The quality of stock inventory was the most commonly identified structural factor. The quality of care was also positively associated with privately-owned facilities. The qualitative synthesis revealed additional factors including access related factors such as 'pre-requisites to be fulfilled by the clients and cost of services, provider workload, and providers' behaviour. There is limited evidence on factors determining quality of care in family planning services in Africa that shows quality of care is influenced by multiple factors. The evidence suggests that lowering access barriers and avoiding unnecessary pre-requisites for taking contraceptive

  6. Factors Determining Quality of Care in Family Planning Services in Africa: A Systematic Review of Mixed Evidence.

    Directory of Open Access Journals (Sweden)

    Gizachew Assefa Tessema

    Full Text Available Improving use of family planning services is key to improving maternal health in Africa, and provision of quality of care in family planning services is critical to support higher levels of contraceptive uptake. The objective of this systematic review was to synthesize the available evidence on factors determining the quality of care in family planning services in Africa.Quantitative and qualitative studies undertaken in Africa, published in English, in grey and commercial literature, between 1990 and 2015 were considered. Methodological quality of included studies was assessed using standardized tools. Findings from the quantitative studies were summarized using narrative and tables. Client satisfaction was used to assess the quality of care in family planning services in the quantitative component of the review. Meta-aggregation was used to synthesize the qualitative study findings.From 4334 records, 11 studies (eight quantitative, three qualitative met the review eligibility criteria. The review found that quality of care was influenced by client, provider and facility factors, and structural and process aspects of the facilities. Client's waiting time, provider competency, provision/prescription of injectable methods, maintaining privacy and confidentiality were the most commonly identified process factors. The quality of stock inventory was the most commonly identified structural factor. The quality of care was also positively associated with privately-owned facilities. The qualitative synthesis revealed additional factors including access related factors such as 'pre-requisites to be fulfilled by the clients and cost of services, provider workload, and providers' behaviour.There is limited evidence on factors determining quality of care in family planning services in Africa that shows quality of care is influenced by multiple factors. The evidence suggests that lowering access barriers and avoiding unnecessary pre-requisites for taking

  7. Absorbed-dose beam quality conversion factors for cylindrical chambers in high energy photon beams.

    Science.gov (United States)

    Seuntjens, J P; Ross, C K; Shortt, K R; Rogers, D W

    2000-12-01

    Recent working groups of the AAPM [Almond et al., Med. Phys. 26, 1847 (1999)] and the IAEA (Andreo et al., Draft V.7 of "An International Code of Practice for Dosimetry based on Standards of Absorbed Dose to Water," IAEA, 2000) have described guidelines to base reference dosimetry of high energy photon beams on absorbed dose to water standards. In these protocols use is made of the absorbed-dose beam quality conversion factor, kQ which scales an absorbed-dose calibration factor at the reference quality 60Co to a quality Q, and which is calculated based on state-of-the-art ion chamber theory and data. In this paper we present the measurement and analysis of beam quality conversion factors kQ for cylindrical chambers in high-energy photon beams. At least three chambers of six different types were calibrated against the Canadian primary standard for absorbed dose based on a sealed water calorimeter at 60Co [TPR10(20)=0.572, %dd(10)x=58.4], 10 MV [TPR10(20)=0.682, %dd(10)x=69.6), 20 MV (TPR10(20)=0.758, %dd(10)x= 80.5] and 30 MV [TPR10(20) = 0.794, %dd(10)x= 88.4]. The uncertainty on the calorimetric determination of kQ for a single chamber is typically 0.36% and the overall 1sigma uncertainty on a set of chambers of the same type is typically 0.45%. The maximum deviation between a measured kQ and the TG-51 protocol value is 0.8%. The overall rms deviation between measurement and the TG-51 values, based on 20 chambers at the three energies, is 0.41%. When the effect of a 1 mm PMMA waterproofing sleeve is taken into account in the calculations, the maximum deviation is 1.1% and the overall rms deviation between measurement and calculation 0.48%. When the beam is specified using TPR10(20), and measurements are compared with kQ values calculated using the version of TG-21 with corrected formalism and data, differences are up to 1.6% when no sleeve corrections are taken into account. For the NE2571 and the NE2611A chamber types, for which the most literature data are

  8. Factors associated with the quality of life of people living with HIV in Finland.

    Science.gov (United States)

    Nobre, Nuno; Pereira, Marco; Roine, Risto P; Sintonen, Harri; Sutinen, Jussi

    2017-08-01

    In recent years, the concept of quality of life (QoL) has received significant attention in the HIV/AIDS literature. In Finland, however, the factors associated with the QoL of people living with HIV/AIDS (PLWHA) still remain unknown. The aim of this study was to identify the sociodemographic and HIV-related factors associated with the different domains of QoL of PLWHA in Finland. The sample of this cross-sectional study consisted of 453 HIV-infected patients (Mean age = 46.5 years; 76.5% male) followed at the Infectious Disease Clinic of Helsinki University Hospital. Participants completed a self-reported questionnaire covering sociodemographic and HIV-related information, and the Finnish version of the WHOQOL-HIV-Bref questionnaire. Participants reported rather high scores in the six QoL domains, which ranged between 68.48 (Social relationships) and 78.05 (Environment) on a 0-100 scale. Multiple regression analyses revealed that male gender, being married or living in a partnered relationship, being employed, having fewer financial concerns, and not having depression and other medical comorbidities were the main factors positively and consistently associated with higher scores in the different domains of the QoL. HIV-related variables were not significantly associated with QoL ratings. Sociodemographic factors were independently associated with the QoL of PLWHA in Finland. Psychosocial support should reflect these factors in order to improve the health status and well-being of PLWHA.

  9. Online newspapers: the impact of culture, sex, and age on the perceived importance of specified quality factors

    Directory of Open Access Journals (Sweden)

    Beverley G. Hope

    2004-01-01

    Full Text Available There has been a proliferation of online newspapers over recent years. Despite this, or perhaps because of it, factors affecting the quality of online newspapers remain only partially understood. Based on a two-factor model of hygiene and motivator factors, this paper examines quality for online newspapers giving attention to differences across culture, sex, and age. Hygiene factors are essential requirements whose absence causes dissatisfaction, while motivators are desirable elements that add value and increase user satisfaction. The paper presents findings from an empirical study of eighty-four Web users. Results show that hygiene factors for our respondents were: Timeliness, Content attractiveness, Content coverage, Usefulness, and Navigation, while motivators were: Writing style, Layout, Archives, Services, Interactivity, and Multimedia presentation. Four factors were borderline: Journalism ethics, Ease of use, Front page and headlines, and Locating information. However, the research reveals some differences in classification of factors across culture, sex, and age.

  10. Patient size and x-ray technique factors in head computed tomography examinations. II. Image quality

    International Nuclear Information System (INIS)

    Huda, Walter; Lieberman, Kristin A.; Chang, Jack; Roskopf, Marsha L.

    2004-01-01

    We investigated how patient head characteristics, as well as the choice of x-ray technique factors, affect lesion contrast and noise values in computed tomography (CT) images. Head sizes and mean Hounsfield unit (HU) values were obtained from head CT images for five classes of patients ranging from the newborn to adults. X-ray spectra with tube voltages ranging from 80 to 140 kV were used to compute the average photon energy, and energy fluence, transmitted through the heads of patients of varying size. Image contrast, and the corresponding contrast to noise ratios (CNRs), were determined for lesions of fat, muscle, and iodine relative to a uniform water background. Maintaining a constant image CNR for each lesion, the patient energy imparted was also computed to identify the x-ray tube voltage that minimized the radiation dose. For adults, increasing the tube voltage from 80 to 140 kV changed the iodine HU from 2.62x10 5 to 1.27x10 5 , the fat HU from -138 to -108, and the muscle HU from 37.1 to 33.0. Increasing the x-ray tube voltage from 80 to 140 kV increased the percentage energy fluence transmission by up to a factor of 2. For a fixed x-ray tube voltage, the percentage transmitted energy fluence in adults was more than a factor of 4 lower than for newborns. For adults, increasing the x-ray tube voltage from 80 to 140 kV improved the CNR for muscle lesions by 130%, for fat lesions by a factor of 2, and for iodine lesions by 25%. As the size of the patient increased from newborn to adults, lesion CNR was reduced by about a factor of 2. The mAs value can be reduced by 80% when scanning newborns while maintaining the same lesion CNR as for adults. Maintaining the CNR of an iodine lesion at a constant level, use of 140 kV increases the energy imparted to an adult patient by nearly a factor of 3.5 in comparison to 80 kV. For fat and muscle lesions, raising the x-ray tube voltage from 80 to 140 kV at a constant CNR increased the patient dose by 37% and 7

  11. Quality of life and predictive factors in patients undergoing assisted reproduction techniques.

    Science.gov (United States)

    Heredia, M; Tenías, J M; Rocio, R; Amparo, F; Calleja, M A; Valenzuela, J C

    2013-04-01

    To evaluate the quality of life (QOL) of a cohort of women undergoing assisted reproduction techniques (ART), to compare two QOL questionnaires [Short Form 36 (SF36) and FertiQoL], and to identify the predictive factors related to QOL. Women who received infertility medication from a hospital pharmacist during a one-year period were included in this study. Two standardized validated questionnaires - FertiQoL and SF36 - were used. Multivariate analyses were used to assess predictive factors for QOL. Sixty-one women participated in this study. Median QOL scores ranged from 58 to 100. Comparisons between the two questionnaires revealed lower QOL scores when using FertiQoL. Most correlations between the questionnaires were positive, and significant for the majority of SF36 mental dimensions. The major predictors of QOL were: accompanied to the pharmacist's visit by partner, nationality, ART (in vitro fertilization or artificial insemination), employment status (employed or unemployed), tobacco consumption, age, number of cycles, infertility factor and treatment results (pregnancy, no pregnancy or treatment cancellation). FertiQoL examines dimensions such as partner and social relationships. As such, it is recommended that FertiQoL should be used together with a short version of SF36 to investigate QOL among patients undergoing ART. Copyright © 2013 Elsevier Ireland Ltd. All rights reserved.

  12. Factors influencing residents' evaluations of clinical faculty member teaching qualities and role model status.

    Science.gov (United States)

    Arah, Onyebuchi A; Heineman, Maas J; Lombarts, Kiki M J M H

    2012-04-01

      Evaluations of faculty members are widely used to identify excellent or substandard teaching performance. In order to enable such evaluations to be properly interpreted and used in faculty development, it is essential to understand the factors that influence resident doctors' (residents) evaluations of the teaching qualities of faculty members and their perceptions of faculty members as role-model specialists.   We carried out a cross-sectional survey within a longitudinal study of the System for Evaluation of Teaching Qualities (SETQ) of clinical teachers. The study sample included 889 residents and 1014 faculty members in 61 teaching programmes spanning 22 specialties in 20 hospitals in the Netherlands. Main outcome measures included residents' (i) global and (ii) specific ratings of faculty member teaching qualities, and (iii) global ratings of faculty members as role-model specialists. Statistical analysis was conducted using adjusted multivariable logistic generalised estimating equations.   In total, 690 residents (77.6%) completed 6485 evaluations of 962 faculty members, 848 (83.6%) of whom also self-evaluated. More recently certified faculty members, those who had attended a teacher training programme, and those who spent more time teaching than seeing patients or conducting research were more likely to score highly on most teaching qualities. However, faculty members who had undergone teacher training were less likely to be seen as role models (odds ratio [OR] 0.72, 95% confidence interval [CI] 0.59-0.88). In addition, faculty members were evaluated slightly higher by male than female residents on core teaching domains and overall teaching quality, but were less likely to be seen as role models by male residents (OR 0.80, 95% CI 0.67-0.97). Lastly, faculty members had higher odds of receiving top scores in specific teaching domains from residents in the first 4 years of residency and were less likely to be considered as role models by more

  13. HbA(1c) and mean blood glucose show stronger associations with cardiovascular disease risk factors than do postprandial glycaemia or glucose variability in persons with diabetes: the A1C-Derived Average Glucose (ADAG) study

    NARCIS (Netherlands)

    Borg, R.; Kuenen, J.C.; Carstensen, B.; Zheng, H.; Nathan, D.M.; Heine, R.J.; Nerup, J.; Borch-Johnsen, K.; Witte, D.R.

    2011-01-01

    Aims: Increased glucose excursions and postprandial hyperglycaemia have been suggested as unique risk factors for cardiovascular disease (CVD) and mortality in patients with diabetes mellitus. Much of the evidence is based on a single 2 h glucose value after oral glucose tolerance testing in

  14. People living with HIV/AIDS in the city of Bangkok: quality of life and related factors.

    Science.gov (United States)

    Munsawaengsub, Chokchai; Khair, Basamat Berair Ebella Mohammed; Nanthamongkolchai, Sutham

    2012-06-01

    To assess the quality of life and factors related to quality of life among people living with HIV/AIDS in Bangkok, Thailand. A cross-sectional survey research was conducted among 138 people aged over 18 years living with HIV/AIDS in Bangkok. The sample was selected by purposive sampling from HIV infected persons who attended the HIV clinic at the hospitals in Bangkok. Data were collected by self-administered questionnaires from June to July 2010 and analyzed by frequency, percentage, mean, standard deviation, Chi-square test and Pearson Product Moment Correlation Coefficient. The finding revealed that of the people living with HIV/AIDS, 67.4% reported a moderate level with respect to quality of life and 32.6% reported a good level concerning the quality of life. Factors related to quality of life were age, education level, monthly income, self-esteem,family relationships and social support (p education to the community were deemed important.

  15. An Empirical Study of Critical Soft Factors for Quality Improvement in The Electrical and Electronics Firms in Malaysia

    Directory of Open Access Journals (Sweden)

    Muhammad Madi Abdullah

    2009-03-01

    Full Text Available Soft factors are important aspect that sustains the organizations in their efforts towards continuous quality improvement (QI and customer satisfaction. The conventional wisdom states that quality improvement in organizations increases profits and productivity. Therefore, the aim of the paper is to examine the influence of critical soft factors (CSF on quality improvement (QI. For that purpose, this study examine: (i the relationship between the CSF and QI and (ii to what extent the six CSF explain QI. The study used survey data from 255 electrical and electronics (E&E firms in Malaysia. The individual managers representing the each firm made the unit of analysis of the study. The finding reveals that QI was significantly influenced by the following soft factors: management commitment, customer focus, employee involvement, training & education, and reward & recognition. Supplier relationship was not a significant predictor of quality improvement. Finally, this study has empirically shown that quality improvement will increase when the organizations emphasize more on soft factors.Keywords: Critical soft factors, quality improvement, Electrical and Electronics firms

  16. Fitting relationship between the beam quality β factor of high-energy laser and the wavefront aberration of laser beam

    Science.gov (United States)

    Ji, Zhong-Ye; Zhang, Xiao-Fang

    2018-01-01

    The mathematical relation between the beam quality β factor of high-energy laser and the wavefront aberration of laser beam is important in beam quality control theory of the high-energy laser weapon system. In order to obtain this mathematical relation, numerical simulation is used in