WorldWideScience

Sample records for empirical quality assessment

  1. Validation of an empirically based instrument for the assessment of the quality of teaching in medicine

    OpenAIRE

    Prescher, Anja

    2016-01-01

    Measuring the quality of teaching is a necessary prerequisite for the evaluation and development of medical education and thus for high-quality patient care. Corresponding quality indicators can make the feedback for teachers comprehensible. A completely empirically based instrument for the assessment of the quality of teaching in medicine has not yet been described. Ten empirically based criteria from the field of general pedagogy were developed: clear structure, amount of true learning time...

  2. Coal quality assessment - the validity of empirical tests

    Energy Technology Data Exchange (ETDEWEB)

    Carpenter, A.M.

    2002-09-01

    In the current increasingly environment, long established quality criteria for assessing coals for pulverised fuel-power plants are being re-examined. Reliable tests are needed for evaluating potential fuels. There is a growing consensus that the current standard tests are inadequate and inaccurate, and their ability to predict full-scale performance can be unreliable. Among the tests whose validity has been questioned are the ash fusion temperature, volatile matter, and Hardgrove Grindability Index. This report reviews these and other tests currently in use, examines their validity, and assesses proposed alternatives. It includes tests for assessing a coal's handling and milling behaviour, its combustion characteristics (ignition, flame stability, char reactivity and burnout), and its slagging and fouling propensities. Coal properties affecting the emission of air pollutants (sulphur dioxide, nitrogen oxides, particulates, trace elements and carbon dioxide) and methods for their determination are also covered. It is concluded that the tests will probably be used, for the foreseeable future, primarily to rank unfamiliar coals in comparison with known coals, rather than to give absolute performance parameters. 252 refs., 32 figs., 28 tabs.

  3. Determinants of Bank Asset Quality and Profitability - An Empirical Assessment

    OpenAIRE

    Swamy, Vighneswara

    2013-01-01

    Determinants of default risk of banks in emerging economies have so far received inadequate attention in the literature. Using panel data techniques, this paper seeks to study the determinants bank asset quality and profitability using robust data sets for the period from 1997-2009. The findings of the study reveal some interesting inferences contrary to the established perceptions. Priority sector credit has been found to be not significant in affecting the NPAs contrary to the general perce...

  4. Performance-based management and quality of work: an empirical assessment.

    Science.gov (United States)

    Falzon, Pierre; Nascimento, Adelaide; Gaudart, Corinne; Piney, Cécile; Dujarier, Marie-Anne; Germe, Jean-François

    2012-01-01

    In France, in the private sector as in the public sector, performance-based management tends to become a norm. Performance-based management is supposed to improve service quality, productivity and efficiency, transparency of allotted means and achieved results, and to better focus the activity of employees and of the whole organization. This text reports a study conducted for the French Ministry of Budget by a team of researchers in ergonomics, sociology and management science, in order to assess the impact of performance-based management on employees, on teams and on work organization. About 100 interviews were conducted with employees of all categories and 6 working groups were set up in order to discuss and validate or amend our first analyses. Results concern several aspects: workload and work intensification, indicators and performance management and the transformation of jobs induced by performance management.

  5. An Empirical Assessment of the Impact of Requirements Uncertainty on Development Quality Performance

    National Research Council Canada - National Science Library

    Aldaijy, Ayad Y

    2004-01-01

    .... The main purpose of this research is to examine the impact of requirements uncertainty and task uncertainty on outcomes in software development projects, limiting the attention to process and product quality...

  6. Service Quality Assessment of Hospitals in Asian Context: An Empirical Evidence From Pakistan

    Science.gov (United States)

    Shafiq, Muhammad; Naeem, Muhammad Azhar; Munawar, Zartasha; Fatima, Iram

    2017-01-01

    Hospitals vary from one another in terms of their specialty, services offered, and resource availability. Their services are widely measured with scales that gauge patients’ perspective. Therefore, there is a need for research to develop a scale that measures hospital service quality in Asian hospitals, regardless of their nature or ownership. To address this research need, this study adapted the SERVQUAL instrument to develop a service quality measurement scale. Data were collected from inpatients and outpatients at 9 different hospitals, and the scale was developed using structural equation modeling. The developed scale was then validated by identifying service quality gaps and ranking the areas that require managerial effort. The findings indicated that all 5 dimensions of SERVQUAL are valid in Asian countries such as Pakistan, with 13 items retained. Reliability, tangibility, responsiveness, empathy, and assurance were ranked first, second, third, fourth, and fifth, respectively, in terms of the size of the quality gap. The gaps were statistically significant, with values ≤.05; therefore, hospital administrators must focus on each of these areas. By focusing on the identified areas of improvement, health care authorities, managers, practitioners, and decision makers can bring substantial change within hospitals. PMID:28660771

  7. Service Quality Assessment of Hospitals in Asian Context: An Empirical Evidence From Pakistan.

    Science.gov (United States)

    Shafiq, Muhammad; Naeem, Muhammad Azhar; Munawar, Zartasha; Fatima, Iram

    2017-01-01

    Hospitals vary from one another in terms of their specialty, services offered, and resource availability. Their services are widely measured with scales that gauge patients' perspective. Therefore, there is a need for research to develop a scale that measures hospital service quality in Asian hospitals, regardless of their nature or ownership. To address this research need, this study adapted the SERVQUAL instrument to develop a service quality measurement scale. Data were collected from inpatients and outpatients at 9 different hospitals, and the scale was developed using structural equation modeling. The developed scale was then validated by identifying service quality gaps and ranking the areas that require managerial effort. The findings indicated that all 5 dimensions of SERVQUAL are valid in Asian countries such as Pakistan, with 13 items retained. Reliability, tangibility, responsiveness, empathy, and assurance were ranked first, second, third, fourth, and fifth, respectively, in terms of the size of the quality gap. The gaps were statistically significant, with values ≤.05; therefore, hospital administrators must focus on each of these areas. By focusing on the identified areas of improvement, health care authorities, managers, practitioners, and decision makers can bring substantial change within hospitals.

  8. PERCEIVED VALUE, SERVICE QUALITY, CORPORATE IMAGE AND CUSTOMER LOYALTY: EMPIRICAL ASSESSMENT FROM PAKISTAN

    Directory of Open Access Journals (Sweden)

    Muhammad Ishtiaq Ishaq

    2012-02-01

    Full Text Available Today’s economy is becoming extremely service-oriented, changing the paradigm of marketingresearch towards services (Carrillat, Jaramillo, & Mulki 2007. Corporate image, perceived value andservice quality have got paramount significance among researchers interested in customer retentionstrategies. In view of that, this study aimed to determine the antecedents of customer loyalty intelecommunication sector of Pakistan. Data were collected from mobile phones users throughquestionnaire-based survey and stepwise regression was applied to test the study hypotheses. Thestudy helps the management of telecommunication companies to develop customer orientedstrategies. Providing insights regarding relative importance of corporate image, perceived value andservice quality for building customer loyalty this research is first of its kind in telecommunicationsector of Pakistan.

  9. Perceptions of Service Quality: An Empirical Assessment of Modified SERVQUAL Model among Domestic Airline Carriers in Nigeria

    Directory of Open Access Journals (Sweden)

    Ganiyu Rahim A.

    2016-12-01

    Full Text Available Literature is replete with a large number of theories related to service quality measurement and dimensions in an airline context. To date, there is no consensus of opinion on the generic model and of the number of dimensions most appropriate to evaluate service quality in airline industry. This study investigates service quality dimensions in the Nigerian airline industry. The cross-sectional survey research design was adopted. Convenience sampling was used to select 800 respondents among departing air travellers in Lagos State. A structured questionnaire containing 28 items was developed to evaluate the perceived service quality of domestic airlines. The data collected were analysed using descriptive statistics, Pearson’s correlation analysis, and one-sample t-test. The dimensionality of perceived service quality in Nigeria’s airline industry was explored using exploratory factor analysis. From the analysis carried out, it was established that the modified SERVQUAL model provided a satisfactory level of overall reliability in Nigeria’s airline context, which implies that all the items were cohesive in forming the SERVQUAL dimensions. According to the findings of this study, all service quality dimensions are positively and significantly interrelated. The perceived service quality of domestic airlines across these dimensions was found to be poor. The most dissatisfied dimensions in order of ranking were: flight pattern, reliability, facilities, assurance, responsiveness, employee, and customization. On the basis of the aforementioned findings, this study concludes that airline operators should redefine their service standards to one that is customer-focused by identifying the dimension of service quality most preferred by the passengers and continuously strive to improve service delivery. The study recommends that airline operators should recognize the changing needs and expectations of air travellers and customize their range of services

  10. Perceived health status and environmental quality in the assessment of external costs of waste disposal facilities. An empirical investigation.

    Science.gov (United States)

    Giaccaria, Sergio; Frontuto, Vito

    2012-08-01

    Taxation for urban waste management has been reformed in Italy by the introduction of an environmental law in 2006. In the planning phase of waste management, externalities generated by new facilities remain widely unaccounted, with a consequent distortion for prices, often raising local conflicts. The paper presents a survey based on the choice modelling methodology, aimed to evaluate on a monetary scale the disamenity effect perceived by incinerator and landfills in an Italian urban context: the city of Turin. In a random utility framework the behaviour of respondents, whose choices are found to be driven by the endowment of information about technological options, socio-economic characteristics as income, education, family composition, and also by their health status was modelled. Furthermore, empirical evidence that the behaviour in residential location choices is affected by different aspects of the respondent life and in particular by the health status was found. Distinct estimates of willingness to accept compensation for disamenity effects of incinerator (Euro 2670) and landfill (Euro 3816) are elicited. The effect of health status of the respondents, their level of information about the waste disposal infrastructure, the presence of a subjective strong aversion (NIMBY) and the actual endowment and concentration of infrastructures are demonstrated to be significant factors determining the choice behaviour, but differentiated and specific for incinerators and landfills.

  11. An empirical assessment of service quality in the context of travel agencies in the Republic of Macedonia

    Directory of Open Access Journals (Sweden)

    Anita Ciunova-Shuleska

    2013-06-01

    Full Text Available This paper investigates the service quality of travel agencies in the Republic of Macedonia from a customer perspective. Its authors applied a modified version of the SERVQUAL instrument for measuring service quality. The results of the performed paired sample t-testing indicated significant differences between expectations and perceptions, with two exceptions. A positive correlation was identified between expectation means and perception means as well as between perception means and gap score means, with a negative correlation identified between expectation means and gap means. Furthermore, factor analysis of the gap score means was performed, revealing the existence of 3 dimensions: customer orientation, reliability and tangibles. Data analysis showed negative gaps between expectations and perception on all three dimensions. Finally, by using the ANOVA test, significant differences among the gap scores of the three different classes of travel agencies (with “A”, “B” and “C” licenses were determined, both in total and with regard to the identified dimensions. There are a number of areas of the travel agencies’ service quality where enhancements are needed in order to satisfy the customers more fully.

  12. An empirical assessment of boarding and quality of care: delays in care among chest pain, pneumonia, and cellulitis patients.

    Science.gov (United States)

    Liu, Shan W; Chang, Yuchiao; Weissman, Joel S; Griffey, Richard T; Thomas, James; Nergui, Suvd; Hamedani, Azita G; Camargo, Carlos A; Singer, Sara

    2011-12-01

    As hospital crowding has increased, more patients have ended up boarding in the emergency department (ED) awaiting their inpatient beds. To the best of our knowledge, no study has compared the quality of care of boarded and nonboarded patients. This study sought to examine whether being a boarded patient and boarding longer were associated with more delays, medication errors, and adverse events among ED patients admitted with chest pain, pneumonia, or cellulitis. This study was a retrospective cohort design in which data collection was accomplished via medical record review from two urban teaching hospitals. Patients admitted with chest pain, pneumonia, or cellulitis between August 2004 and January 2005 were eligible for inclusion. Our outcomes measures were: 1) delays in administration of home medications, cardiac enzyme tests, partial thromboplastin time (PTT), and antibiotics; 2) medication errors; and 3) adverse events or near misses. Primary independent variables were boarded status, boarding time, and boarded time interval. Multiple logistic regression models controlling for patient, ED, and hospital characteristics were used. A total of 1,431 patient charts were included: 811 with chest pain, 387 with pneumonia, and 233 with cellulitis. Boarding time was associated with an increased odds of home medication delays (adjusted odds ratio [AOR] = 1.07, 95% confidence interval [CI] = 1.05 to 1.10), as were boarded time intervals of 12, 18, and 24 hours. Boarding time also was associated with lower odds of having a late cardiac enzyme test (AOR = 0.93, 95% CI = 0.88 to 0.97). Boarding was associated with home medication delays, but fewer cardiac enzyme test delays. Boarding was not associated with delayed PTT checks, antibiotic administration, medication errors, or adverse events/near misses. These findings likely reflect the inherent resources of the ED and the inpatient units. © 2011 by the Society for Academic Emergency Medicine.

  13. Assessing potential effects of highway runoff on receiving-water quality at selected sites in Oregon with the Stochastic Empirical Loading and Dilution Model (SELDM)

    Science.gov (United States)

    Risley, John C.; Granato, Gregory E.

    2014-01-01

    In 2012, the U.S. Geological Survey and the Oregon Department of Transportation began a cooperative study to demonstrate use of the Stochastic Empirical Loading and Dilution Model (SELDM) for runoff-quality analyses in Oregon. SELDM can be used to estimate stormflows, constituent concentrations, and loads from the area upstream of a stormflow discharge site, from the site of interest and in the receiving waters downstream of the discharge. SELDM also can be used to assess the potential effectiveness of best management practices (BMP) for mitigating potential effects of runoff in receiving waters. Nominally, SELDM is a highway-runoff model, but it is well suited for analysis of runoff from other land uses as well. This report provides case studies and examples to demonstrate stochastic-runoff modeling concepts and to demonstrate application of the model. Basin characteristics from six Oregon highway study sites were used to demonstrate various applications of the model. The highway catchment and upstream basin drainage areas of these study sites ranged from 3.85 to 11.83 acres and from 0.16 to 6.56 square miles, respectively. The upstream basins of two sites are urbanized, and the remaining four sites are less than 5 percent impervious. SELDM facilitates analysis by providing precipitation, pre-storm streamflow, and other variables by region or from hydrologically similar sites. In Oregon, there can be large variations in precipitation and streamflow among nearby sites. Therefore, spatially interpolated geographic information system data layers containing storm-event precipitation and pre-storm streamflow statistics specific to Oregon were created for the study using Kriging techniques. Concentrations and loads of cadmium, chloride, chromium, copper, iron, lead, nickel, phosphorus, and zinc were simulated at the six Oregon highway study sites by using statistics from sites in other areas of the country. Water‑quality datasets measured at hydrologically similar

  14. Impact of Office Automation: An Empirical Assessment

    Science.gov (United States)

    1988-12-01

    imp F rq(I NAVAL POSTGRADUATE SCHOOL Monterey, California N I < DTIC S ELECTEI THESIS -’° "I I MPACT OF OFFICE AUTOMATION : AN EMPIRICAL ASSESSMENT by...FLNDiNG NUMBERS PROGRAM PROCT TASK IWORK UNIT ELEMNT O NONO ACCESSION NO 11 TITLE (Include Security Classification) IMPACT OF OFFICE AUTOMATION : AN...identity by block number) FIELD GROUP I SB-GROLP Productivity Assessment; SACONS; Office Automation I I 19 ABSTRACT (Continue on reverse if necessary

  15. Data envelopment analysis in service quality evaluation: an empirical study

    Science.gov (United States)

    Najafi, Seyedvahid; Saati, Saber; Tavana, Madjid

    2015-09-01

    Service quality is often conceptualized as the comparison between service expectations and the actual performance perceptions. It enhances customer satisfaction, decreases customer defection, and promotes customer loyalty. Substantial literature has examined the concept of service quality, its dimensions, and measurement methods. We introduce the perceived service quality index (PSQI) as a single measure for evaluating the multiple-item service quality construct based on the SERVQUAL model. A slack-based measure (SBM) of efficiency with constant inputs is used to calculate the PSQI. In addition, a non-linear programming model based on the SBM is proposed to delineate an improvement guideline and improve service quality. An empirical study is conducted to assess the applicability of the method proposed in this study. A large number of studies have used DEA as a benchmarking tool to measure service quality. These models do not propose a coherent performance evaluation construct and consequently fail to deliver improvement guidelines for improving service quality. The DEA models proposed in this study are designed to evaluate and improve service quality within a comprehensive framework and without any dependency on external data.

  16. An empirical assessment of the SERVQUAL scale

    Directory of Open Access Journals (Sweden)

    Mahla Zargar

    2015-11-01

    Full Text Available During the past few years, many people have used point of sales for purchasing goods and services. Point of sales tends to provide a reliable method for making purchases in stores. Implementation of point of sales may reduce depreciation cost of automated telling machines and helps banks increase their productivities. Therefore, for bank managers, it is important to provide high quality services. This paper presents an empirical investigation to measure quality service using SERVQUAL scale. The study first extracts six factors including Trust, Responsiveness, Reliability, Empathy, Tangibles and getting insight for future development through the implementation of structural equation modeling. Next, it has implemented structural equation modeling and realizes that all components had positive impacts on customer satisfaction.

  17. 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 ...

  18. Empirical generalization assessment of neural network models

    DEFF Research Database (Denmark)

    Larsen, Jan; Hansen, Lars Kai

    1995-01-01

    competing models. Since all models are trained on the same data, a key issue is to take this dependency into account. The optimal split of the data set of size N into a cross-validation set of size Nγ and a training set of size N(1-γ) is discussed. Asymptotically (large data sees), γopt→1......This paper addresses the assessment of generalization performance of neural network models by use of empirical techniques. We suggest to use the cross-validation scheme combined with a resampling technique to obtain an estimate of the generalization performance distribution of a specific model....... This enables the formulation of a bulk of new generalization performance measures. Numerical results demonstrate the viability of the approach compared to the standard technique of using algebraic estimates like the FPE. Moreover, we consider the problem of comparing the generalization performance of different...

  19. 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.

  20. Gun Laws and Crime: An Empirical Assessment

    OpenAIRE

    Matti Viren

    2012-01-01

    This paper deals with the effect of gun laws on crime. Several empirical analyses are carried to investigate the relationship between five different crime rates and alternative law variables. The tests are based on cross-section data from US sates. Three different law variables are used in the analysis, together with a set of control variables for income, poverty, unemployment and ethnic background of the population. Empirical analysis does not lend support to the notion that crime laws would...

  1. Principles Involving Marketing Policies: An Empirical Assessment

    OpenAIRE

    JS Armstrong; Randall L. Schultz

    2005-01-01

    We examined nine marketing textbooks, published since 1927, to see if they contained useful marketing principles. Four doctoral students found 566 normative statements about pricing, product, place, or promotion in these texts. None of these stateinents were supported by empirical evidence. Four raters agreed on only twenty of these 566 statements as providing meaningful principles. Twenty marketing professors rated whether the twenty meaningful principles were correct, supported by empirical...

  2. An empirical investigation of quality performance expectations in the software industry: A gap analysis approach

    OpenAIRE

    Mehrez, Ahmed

    2014-01-01

    The assessment of quality is pervasive but vital in organisations. It is particularly important in the design of an effective quality management system. The assessment is often considered from the perspective of fulfilling customers' requirements; however, the level of compatibility between a product or service providers' perceptions of what to deliver and the customers' desires or expectations is often uncertain. This paper describes an empirical study evaluating, within the software industr...

  3. Life Quality Index – an empirical or a normative concept?

    DEFF Research Database (Denmark)

    Ditlevsen, Ove Dalager; Friis-Hansen, Peter

    2007-01-01

    The Life Quality Index introduced by Nathwani, Lind and Pandey is a social indicator that by invariance serves the purpose of allocating a balanced and ethically reasonable part of the Gross Domestic Product of a country to life saving initiatives. In the attempts to understand the reasoning behind...... and available OECD-data show that the theory quite well represents the data for several countries. From the logical analysis of the theory it can be concluded that the empirical evidence cannot support the invariance principle of the LQI for money allocation as an empirically verified rule, but only...

  4. A Systematic Assessment of Empirical Research on Foreign Entry Mode

    DEFF Research Database (Denmark)

    Wulff, Jesper

    2016-01-01

    Purpose Reviews on foreign market entry mode are limited by their methodological approach. The purpose of this paper is to overcome some of these limitations by systematically assessing the empirical support for central relationships in the empirical literature. Design/methodology/approach This r......Purpose Reviews on foreign market entry mode are limited by their methodological approach. The purpose of this paper is to overcome some of these limitations by systematically assessing the empirical support for central relationships in the empirical literature. Design....../methodology/approach This review provides a systematic assessment of empirical support through a simple quantitative procedure using transparent criteria for article selection. In total, 1217 statistical tests from 119 studies published in 44 different scientific journals in the period 1997-2013 are examined across a range...

  5. Evaluating Process Quality Based on Change Request Data - An Empirical Study of the Eclipse Project

    Science.gov (United States)

    Schackmann, Holger; Schaefer, Henning; Lichter, Horst

    The information routinely collected in change request management systems contains valuable information for monitoring of the process quality. However this data is currently utilized in a very limited way. This paper presents an empirical study of the process quality in the product portfolio of the Eclipse project. It is based on a systematic approach for the evaluation of process quality characteristics using change request data. Results of the study offer insights into the development process of Eclipse. Moreover the study allows assessing applicability and limitations of the proposed approach for the evaluation of process quality.

  6. Research across the disciplines: a road map for quality criteria in empirical ethics research

    Science.gov (United States)

    2014-01-01

    Background Research in the field of Empirical Ethics (EE) uses a broad variety of empirical methodologies, such as surveys, interviews and observation, developed in disciplines such as sociology, anthropology, and psychology. Whereas these empirical disciplines see themselves as purely descriptive, EE also aims at normative reflection. Currently there is literature about the quality of empirical research in ethics, but little or no reflection on specific methodological aspects that must be considered when conducting interdisciplinary empirical ethics. Furthermore, poor methodology in an EE study results in misleading ethical analyses, evaluations or recommendations. This not only deprives the study of scientific and social value, but also risks ethical misjudgement. Discussion While empirical and normative-ethical research projects have quality criteria in their own right, we focus on the specific quality criteria for EE research. We develop a tentative list of quality criteria – a “road map” – tailored to interdisciplinary research in EE, to guide assessments of research quality. These quality criteria fall into the categories of primary research question, theoretical framework and methods, relevance, interdisciplinary research practice and research ethics and scientific ethos. Summary EE research is an important and innovative development in bioethics. However, a lack of standards has led to concerns about and even rejection of EE by various scholars. Our suggested orientation list of criteria, presented in the form of reflective questions, cannot be considered definitive, but serves as a tool to provoke systematic reflection during the planning and composition of an EE research study. These criteria need to be tested in different EE research settings and further refined. PMID:24580847

  7. AN EMPIRICAL ASSESSMENT OF THE RELATIONSHIP OF

    African Journals Online (AJOL)

    ETIWISTIC

    2013-04-29

    Apr 29, 2013 ... Some of these ICTs sources are: (1) Digital video camera (2) Multimedia computer (PC) ... with information in an academic environment. Supporting this ..... to play various songs in a performance. 3.20 1.82 HE. 2.85. 1.03 HE. 13 Helps to improve the quality of presentation and recording. 3.10 1.42 HE. 3.11.

  8. AN EMPIRICAL ASSESSMENT OF THE RELATIONSHIP OF

    African Journals Online (AJOL)

    ETIWISTIC

    2013-05-06

    May 6, 2013 ... Key words: Vocational and technical education, Global economic recession, internally generated revenue .... view of the foregoing fact and in recognition of the importance of Vocational and Technical Education .... manufacturing for their assessment under the guidance and supervision of their teachers.

  9. AN EMPIRICAL ASSESSMENT OF THE RELATIONSHIP OF

    African Journals Online (AJOL)

    ETIWISTIC

    2013-05-06

    May 6, 2013 ... Taylor International. Gray, M. R. & Steinberg, L. (1999). Unpacking authoritative parenting: re- assessing multidimensional construct. Journal of Marriage and the. Family, (61), 574 – 587. Ijaya, N. Y. S. (2004). Agents of Examination Malpractice in Nigerian Public. Examinations: Who is the Strongest Link?

  10. Power quality assessment

    International Nuclear Information System (INIS)

    Fathi, H.M.E.

    2012-01-01

    The electrical power systems are exposed to different types of power quality disturbances problems. Assessment of power quality is necessary for maintaining accurate operation of sensitive equipment's especially for nuclear installations, it also ensures that unnecessary energy losses in a power system are kept at a minimum which lead to more profits. With advanced in technology growing of industrial / commercial facilities in many region. Power quality problems have been a major concern among engineers; particularly in an industrial environment, where there are many large-scale type of equipment. Thus, it would be useful to investigate and mitigate the power quality problems. Assessment of Power quality requires the identification of any anomalous behavior on a power system, which adversely affects the normal operation of electrical or electronic equipment. The choice of monitoring equipment in a survey is also important to ascertain a solution to these power quality problems. A power quality assessment involves gathering data resources; analyzing the data (with reference to power quality standards); then, if problems exist, recommendation of mitigation techniques must be considered. The main objective of the present work is to investigate and mitigate of power quality problems in nuclear installations. Normally electrical power is supplied to the installations via two sources to keep good reliability. Each source is designed to carry the full load. The Assessment of power quality was performed at the nuclear installations for both sources at different operation conditions. The thesis begins with a discussion of power quality definitions and the results of previous studies in power quality monitoring. The assessment determines that one source of electricity was deemed to have relatively good power quality; there were several disturbances, which exceeded the thresholds. Among of them are fifth harmonic, voltage swell, overvoltage and flicker. While the second

  11. Institutional quality and private sector participation: theory and empirical findings

    Directory of Open Access Journals (Sweden)

    Rahel Schomaker

    2014-12-01

    Full Text Available Through several conduits, sound institutional quality is pivotal for economic development, as there is evidence that stable democratic institutions, rule of law and sound governance structures in the administration are highly conducive to promote growth. Therefore, a high institutional quality is not only the end point, but also the starting point of a more sustainable development. In this paper we provide some theoretical considerations as well as empirical evidence, based on several regression analyses, that the quality of institutions in a wider sense, and governance, which includes not only the level of “politics” itself, but also the administrative level, is relevant not only for the macro-level of development (i.e. the increase of the national welfare and foreign investment, but also on a micro-level: A stronger participation of private enterprises in public service provision and the introduction of public-private part¬nerships depends to a high degree on the institutional quality. This is even more relevant as the improvement of public services and of core infrastructures can be seen as crucial multipliers for future growth.

  12. Life Quality Index – an empirical or a normative concept?

    DEFF Research Database (Denmark)

    Ditlevsen, Ove Dalager; Friis-Hansen, Peter

    2007-01-01

    The Life Quality Index introduced by Nathwani, Lind and Pandey is a social indicator that by invariance serves the purpose of allocating a balanced and ethically reasonable part of the Gross Domestic Product of a country to life saving initiatives. In the attempts to understand the reasoning behind...... the construction of the LQI one may ask whether the LQI is built on empirical evidence of social behavior that implies the modeled balance between the free time and the work time. Even if so, one may ask whether the invariance principle is a fact of social life or a normative principle of ethical social behavior....... By using a dimensionless representation of the work time value production and the free time and an optimal balancing of the two against each other, it is demonstrated that there is a specific mathematical formula that connects work time and value productivity. Moreover, comparisons of the theory...

  13. Patent Assessment Quality

    DEFF Research Database (Denmark)

    Burke, Paul F.; Reitzig, Markus

    2006-01-01

    of the patent office is one important dimension, particularly in new patenting areas (emerging technologies). In order to understand whether patent offices appear capable of providing consistent assessments of a patent's technological quality in such novel industries from the beginning, we study the concordance...... of the European Patent Office's (EPO's) granting and opoposition decisions for individual patents. We use the historical example of biotech patens filed between 1978 until 1986, the early stage of the industry. Our results indicate that the EPO shows systematically different assessments of technological quality...

  14. An Empirical Study of a Solo Performance Assessment Model

    Science.gov (United States)

    Russell, Brian E.

    2015-01-01

    The purpose of this study was to test a hypothesized model of solo music performance assessment. Specifically, this study investigates the influence of technique and musical expression on perceptions of overall performance quality. The Aural Musical Performance Quality (AMPQ) measure was created to measure overall performance quality, technique,…

  15. Assessment of water quality

    International Nuclear Information System (INIS)

    Qureshi, I.H.

    2002-01-01

    Water is the most essential component of all living things and it supports the life process. Without water, it would not have been possible to sustain life on this planet. The total quantity of water on earth is estimated to be 1.4 trillion cubic meter. Of this, less than 1 % water, present in rivers and ground resources is available to meet our requirement. These resources are being contaminated with toxic substances due to ever increasing environmental pollution. To reduce this contamination, many countries have established standards for the discharge of municipal and industrial waste into water streams. We use water for various purposes and for each purpose we require water of appropriate quality. The quality of water is assessed by evaluating the physical chemical, biological and radiological characteristics of water. Water for drinking and food preparation must be free from turbidity, colour, odour and objectionable tastes, as well as from disease causing organisms and inorganic and organic substances, which may produce adverse physiological effects, Such water is referred to as potable water and is produced by treatment of raw water, involving various unit operations. The effectiveness of the treatment processes is checked by assessing the various parameters of water quality, which involves sampling and analysis of water and comparison with the National Quality Standards or WHO standards. Water which conforms to these standards is considered safe and palatable for human consumption. Periodic assessment of water is necessary, to ensure the quality of water supplied to the public. This requires proper sampling at specified locations and analysis of water, employing reliable analytical techniques. (author)

  16. AN APPROACH TO THE EXTERNAL ASSESSMENT THROUGH EMPIRICAL EVIDENCE

    Directory of Open Access Journals (Sweden)

    Ismael Sanz Labrador

    2015-06-01

    Full Text Available This article presents the empiral evidences of standardized evaluations and explores the aspects of such evaluations more interesting to the educational community, and investigates the effects in implementing those exams on the performance of students. Furthermore, it is analyzed the relationship between external evaluations and teaching to the test , it is seen how it affects the introduction of these evaluations in student learning and their performance in international assessments of different characteristics, and the effect it produces in schools located in disadvantaged areas.

  17. Web applications quality assessment

    OpenAIRE

    Tamulynaitė, Donaira

    2017-01-01

    Web applications are becoming more and more popular. Web application quality may determine its success, however, there is no one generally accepted standard or quality model for web applications quality evaluation. The aim of this thesis is to provide a quality model for web applications. The constructed quality model is based on ISO Systems and software Quality evaluation standard, as well as on theoretical research results analysed in this topic. 18 web application characteristics have been...

  18. Drinking water quality assessment.

    Science.gov (United States)

    Aryal, J; Gautam, B; Sapkota, N

    2012-09-01

    Drinking water quality is the great public health concern because it is a major risk factor for high incidence of diarrheal diseases in Nepal. In the recent years, the prevalence rate of diarrhoea has been found the highest in Myagdi district. This study was carried out to assess the quality of drinking water from different natural sources, reservoirs and collection taps at Arthunge VDC of Myagdi district. A cross-sectional study was carried out using random sampling method in Arthunge VDC of Myagdi district from January to June,2010. 84 water samples representing natural sources, reservoirs and collection taps from the study area were collected. The physico-chemical and microbiological analysis was performed following standards technique set by APHA 1998 and statistical analysis was carried out using SPSS 11.5. The result was also compared with national and WHO guidelines. Out of 84 water samples (from natural source, reservoirs and tap water) analyzed, drinking water quality parameters (except arsenic and total coliform) of all water samples was found to be within the WHO standards and national standards.15.48% of water samples showed pH (13) higher than the WHO permissible guideline values. Similarly, 85.71% of water samples showed higher Arsenic value (72) than WHO value. Further, the statistical analysis showed no significant difference (Pwater for collection taps water samples of winter (January, 2010) and summer (June, 2010). The microbiological examination of water samples revealed the presence of total coliform in 86.90% of water samples. The results obtained from physico-chemical analysis of water samples were within national standard and WHO standards except arsenic. The study also found the coliform contamination to be the key problem with drinking water.

  19. A Scoping Review of Empirical Research Relating to Quality and Effectiveness of Research Ethics Review

    Science.gov (United States)

    Nicholls, Stuart G.; Hayes, Tavis P.; Brehaut, Jamie C.; McDonald, Michael; Weijer, Charles; Saginur, Raphael; Fergusson, Dean

    2015-01-01

    Background To date there is no established consensus of assessment criteria for evaluating research ethics review. Methods We conducted a scoping review of empirical research assessing ethics review processes in order to identify common elements assessed, research foci, and research gaps to aid in the development of assessment criteria. Electronic searches of Ovid Medline, PsychInfo, and the Cochrane DSR, ACP Journal Club, DARE, CCTR, CMR, HTA, and NHSEED, were conducted. After de-duplication, 4234 titles and abstracts were reviewed. Altogether 4036 articles were excluded following screening of titles, abstracts and full text. A total of 198 articles included for final data extraction. Results Few studies originated from outside North America and Europe. No study reported using an underlying theory or framework of quality/effectiveness to guide study design or analyses. We did not identify any studies that had involved a controlled trial - randomised or otherwise – of ethics review procedures or processes. Studies varied substantially with respect to outcomes assessed, although tended to focus on structure and timeliness of ethics review. Discussion Our findings indicate a lack of consensus on appropriate assessment criteria, exemplified by the varied study outcomes identified, but also a fragmented body of research. To date research has been largely quantitative, with little attention given to stakeholder experiences, and is largely cross sectional. A lack of longitudinal research to date precludes analyses of change or assessment of quality improvement in ethics review. PMID:26225553

  20. A Scoping Review of Empirical Research Relating to Quality and Effectiveness of Research Ethics Review.

    Science.gov (United States)

    Nicholls, Stuart G; Hayes, Tavis P; Brehaut, Jamie C; McDonald, Michael; Weijer, Charles; Saginur, Raphael; Fergusson, Dean

    2015-01-01

    To date there is no established consensus of assessment criteria for evaluating research ethics review. We conducted a scoping review of empirical research assessing ethics review processes in order to identify common elements assessed, research foci, and research gaps to aid in the development of assessment criteria. Electronic searches of Ovid Medline, PsychInfo, and the Cochrane DSR, ACP Journal Club, DARE, CCTR, CMR, HTA, and NHSEED, were conducted. After de-duplication, 4234 titles and abstracts were reviewed. Altogether 4036 articles were excluded following screening of titles, abstracts and full text. A total of 198 articles included for final data extraction. Few studies originated from outside North America and Europe. No study reported using an underlying theory or framework of quality/effectiveness to guide study design or analyses. We did not identify any studies that had involved a controlled trial--randomised or otherwise--of ethics review procedures or processes. Studies varied substantially with respect to outcomes assessed, although tended to focus on structure and timeliness of ethics review. Our findings indicate a lack of consensus on appropriate assessment criteria, exemplified by the varied study outcomes identified, but also a fragmented body of research. To date research has been largely quantitative, with little attention given to stakeholder experiences, and is largely cross sectional. A lack of longitudinal research to date precludes analyses of change or assessment of quality improvement in ethics review.

  1. A Scoping Review of Empirical Research Relating to Quality and Effectiveness of Research Ethics Review.

    Directory of Open Access Journals (Sweden)

    Stuart G Nicholls

    Full Text Available To date there is no established consensus of assessment criteria for evaluating research ethics review.We conducted a scoping review of empirical research assessing ethics review processes in order to identify common elements assessed, research foci, and research gaps to aid in the development of assessment criteria. Electronic searches of Ovid Medline, PsychInfo, and the Cochrane DSR, ACP Journal Club, DARE, CCTR, CMR, HTA, and NHSEED, were conducted. After de-duplication, 4234 titles and abstracts were reviewed. Altogether 4036 articles were excluded following screening of titles, abstracts and full text. A total of 198 articles included for final data extraction.Few studies originated from outside North America and Europe. No study reported using an underlying theory or framework of quality/effectiveness to guide study design or analyses. We did not identify any studies that had involved a controlled trial--randomised or otherwise--of ethics review procedures or processes. Studies varied substantially with respect to outcomes assessed, although tended to focus on structure and timeliness of ethics review.Our findings indicate a lack of consensus on appropriate assessment criteria, exemplified by the varied study outcomes identified, but also a fragmented body of research. To date research has been largely quantitative, with little attention given to stakeholder experiences, and is largely cross sectional. A lack of longitudinal research to date precludes analyses of change or assessment of quality improvement in ethics review.

  2. Information System Quality Assessment Methods

    OpenAIRE

    Korn, Alexandra

    2014-01-01

    This thesis explores challenging topic of information system quality assessment and mainly process assessment. In this work the term Information System Quality is defined as well as different approaches in a quality definition for different domains of information systems are outlined. Main methods of process assessment are overviewed and their relationships are described. Process assessment methods are divided into two categories: ISO standards and best practices. The main objective of this w...

  3. An Empirical Study of State University Students' Perceived Service Quality

    Science.gov (United States)

    Sumaedi, Sik; Bakti, Gede Mahatma Yuda; Metasari, Nur

    2012-01-01

    Purpose: This paper aims to identify: university students' perceived service quality dimensions; the dimensions contributing most towards overall students' perceived service quality; and whether there is a difference in perceived quality level of each dimension based on students' year of study and gender in the context of undergraduate students of…

  4. Academic Staff Quality in Higher Education: An Empirical Analysis of Portuguese Public Administration Education

    Science.gov (United States)

    Sarrico, Cláudia S.; Alves, André A.

    2016-01-01

    Higher education accreditation frameworks typically consider academic staff quality a key element. This article embarks on an empirical study of what academic staff quality means, how it is measured, and how different aspects of staff quality relate to each other. It draws on the relatively nascent Portuguese experience with study programme…

  5. Social Advertising Quality: Assessment Criteria

    Directory of Open Access Journals (Sweden)

    S. B. Kalmykov

    2017-01-01

    Full Text Available Purpose: the The purpose of the publication is development of existing criterial assessment in social advertising sphere. The next objectives are provided for its achievement: to establish research methodology, to develop the author’s version of necessary notional apparatus and conceptual generalization, to determine the elements of social advertising quality, to establish the factors of its quality, to conduct the systematization of existing criteria and measuring instruments of quality assessment, to form new criteria of social advertising quality, to apply received results for development of criterial assessment to determine the further research perspectives. Methods: the methodology of research of management of social advertising interaction with target audience, which has dynamic procedural character with use of sociological knowledge multivariate paradigmatic status, has been proposed. Results: the primary received results: the multivariate paradigmatic research basis with use of works of famous domestic and foreign scientists in sociology, qualimetry and management spheres; the definitions of social advertising, its quality, sociological quality provision system, target audience behavior model during social advertising interaction are offered; the quality factors with three groups by level of effect on consumer are established; the systematization of existing quality and its measure instruments assessment criteria by detected social advertising quality elements are conducted; the two new criteria and its management quality assessment measuring instruments in social advertising sphere are developed; the one of the common groups of production quality criteria – adaptability with considering of new management quality criteria and conducted systematization of existing social advertising creative quality assessment criteria development; the perspective of further perfection of quality criterial assessment based on social advertising

  6. Conceptual Principles of Quality of Life: An Empirical Exploration

    Science.gov (United States)

    Bramston, P.; Chipuer, H.; Pretty, G.

    2005-01-01

    Background: Quality of life is a popular measure of outcomes and its widespread use has led to recent calls for a better understanding of the construct, emphasizing the need to build a substantial body of knowledge around what determines perceptions of life quality. Three widely reported and used conceptual principles are examined in this study.…

  7. Sliding Window Empirical Mode Decomposition -its performance and quality

    Directory of Open Access Journals (Sweden)

    Stepien Pawel

    2014-12-01

    Proposed algorithm speeds up (about 10 times the computation with acceptable quality of decomposition. Conclusions Sliding Window EMD algorithm is suitable for decomposition of long signals with high sampling frequency.

  8. Website Service Quality in Ireland: An Empirical Study

    Science.gov (United States)

    Connolly, Regina

    Despite the fact that service quality is a critical determinant of website success, studies show that consumers frequently view the service quality delivered through websites as unsatisfactory. This paper outlines a study that investigated the dimensions of website service excellence valued by Irish customers of a small-to-medium enterprise specialising in gifts. The E-S-QUAL measurement instrument was applied to the customers who purchase products online from this retailer, in order to determine their purchasing patterns and the dimensions of e-service quality that they value. The results of this study indicate the effectiveness of the instrument in determining gaps in e-service quality. The findings will be of benefit both to practitioners and researchers seeking to improve their understanding of the factors that contribute towards the creation and maintenance of consumer satisfaction in Irish online transactions.

  9. Job Satisfaction and Quality Management: An Empirical Analysis

    OpenAIRE

    de Menezes, L. M.

    2011-01-01

    Purpose\\ud – Quality management requires increasing employee involvement that could empower employees, leading to employee and customer satisfaction. Although the literature describes a picture of increasing job demands and work intensification, the evidence of an association between employee job satisfaction and quality management remains mixed and narrow. The purpose of this paper is to investigate this link in the wider economy, and address the roles of human resource management practices ...

  10. TECHNOLOGY ASSESSMENT IN HOSPITALS: LESSONS LEARNED FROM AN EMPIRICAL EXPERIMENT.

    Science.gov (United States)

    Foglia, Emanuela; Lettieri, Emanuele; Ferrario, Lucrezia; Porazzi, Emanuele; Garagiola, Elisabetta; Pagani, Roberta; Bonfanti, Marzia; Lazzarotti, Valentina; Manzini, Raffaella; Masella, Cristina; Croce, Davide

    2017-01-01

    Hospital Based Health Technology Assessment (HBHTA) practices, to inform decision making at the hospital level, emerged as urgent priority for policy makers, hospital managers, and professionals. The present study crystallized the results achieved by the testing of an original framework for HBHTA, developed within Lombardy Region: the IMPlementation of A Quick hospital-based HTA (IMPAQHTA). The study tested: (i) the HBHTA framework efficiency, (ii) feasibility, (iii) the tool utility and completeness, considering dimensions and sub-dimensions. The IMPAQHTA framework deployed the Regional HTA program, activated in 2008 in Lombardy, at the hospital level. The relevance and feasibility of the framework were tested over a 3-year period through a large-scale empirical experiment, involving seventy-four healthcare professionals organized in different HBHTA teams for assessing thirty-two different technologies within twenty-two different hospitals. Semi-structured interviews and self-reported questionnaires were used to collect data regarding the relevance and feasibility of the IMPAQHTA framework. The proposed HBHTA framework proved to be suitable for application at the hospital level, in the Italian context, permitting a quick assessment (11 working days) and providing hospital decision makers with relevant and quantitative information. Performances in terms of feasibility, utility, completeness, and easiness proved to be satisfactory. The IMPAQHTA was considered to be a complete and feasible HBHTA framework, as well as being replicable to different technologies within any hospital settings, thus demonstrating the capability of a hospital to develop a complete HTA, if supported by adequate and well defined tools and quantitative metrics.

  11. Life Quality Index – an empirical or a normative concept?

    DEFF Research Database (Denmark)

    Ditlevsen, Ove Dalager; Friis-Hansen, Peter

    2007-01-01

    The Life Quality Index introduced by Nathwani, Lind and Pandey is a social indicator that by invariance serves the purpose of allocating a balanced and ethically reasonable part of the Gross Domestic Product of a country to life saving initiatives. In the attempts to understand the reasoning behi...

  12. Performance-Based Service Quality Model: An Empirical Study on Japanese Universities

    Science.gov (United States)

    Sultan, Parves; Wong, Ho

    2010-01-01

    Purpose: This paper aims to develop and empirically test the performance-based higher education service quality model. Design/methodology/approach: The study develops 67-item instrument for measuring performance-based service quality with a particular focus on the higher education sector. Scale reliability is confirmed using the Cronbach's alpha.…

  13. Empirical Assessment on Financial Regulations and Banking Sector Performance

    Directory of Open Access Journals (Sweden)

    Igbinosa S.

    2017-09-01

    Full Text Available This study examines financial regulation and banking sector performance in Nigeria. Specifically, the study determines the impact of reforms on banking sector performance and also assesses the nexus between capital adequacy and banking sector performance. Time series data for the period 1993 to 2014 was used. As an analytical tool, the study uses unit root test to determine the stationary state of the variables. We also employed the Johansson co-integration and error correction model (ECM statistical techniques to establish both short-run and long-run dynamic relationships between the endogenous and exogenous variables. The empirical findings indicate that financial regulation significantly impacts the banking sector performance while financial regulation has both short-run and long-run dynamic relationships with the banking sector performance in Nigeria. It was found that the four-period lag of capital adequacy negatively affects banking sector performance and is not statistically significant. The paper suggests that the Central Bank of Nigeria (CBN should continually make public the impacts that the various financial regulations and reforms have on the performance of Nigerian banks. Majority of the policies on financial regulation by the apex bank (CBN need to be long-run which can enable confidence of stakeholders, shareholders and the general public in the Nigerian banking industry when critically evaluated.

  14. An Empirical Research on Bank Client Credit Assessments

    Directory of Open Access Journals (Sweden)

    Quan Chen

    2018-05-01

    Full Text Available Individual microcredit loans involve large quantities and small amounts and necessitate rapid approval, therefore making simple and fast application approvals rather critical. Creditors must evaluate clients’ credit status and default risk within the shortest time when determining whether to approve or decline their applications, preventing overdue responses that negatively impact bank profits and management practices, and could trigger domestic financial crises. This study investigates client credit quality criteria, focusing on the expert opinions of bank managers. The decision-making trial and evaluation laboratory method is adopted to enable a comparison and analysis of the similarities and differences in how banks evaluate their clients’ character, ability, financial capability, and collateral. Based on causality and correlations among the criteria, we also identify the core problems and key improvement criteria in the evaluation system. Through survey results of professional managers from Taiwanese banks, this study uses the DEMATEL method to compare the differences in bank evaluation methods based on the four dimensions of clients’ character, ability, pockets, and collateral, as well as the corresponding 14 criteria. In order to improve the reliability and usefulness in bank client credit risk assessment, the assessment dimensions and indicators of bank client credit risk assessment are first discussed; second, the causal relationship and degree of mutual influence between different dimensions and criteria are researched and assessed; in the end, the paper discusses how to improve the function and the benefits of bank client credit risk assessment.

  15. Indoor climate quality assessment

    CERN Document Server

    Gameiro da Silva, Manuel; Ansaldi, Roberta; Asadi, Ehsan; Costa, Joaquim José; Filippi, Marco; Kaczmarczyk, Jan; Melikov, Arsen Krikor; Olesen, Bjarne W; Popiolek, Zbigniew; Wargocki, Pawel

    2011-01-01

    This new REHVA Guidebook gives building professionals a useful support in the practical measurements and monitoring of the indoor climate in buildings. Wireless technologies for measurement and monitoring has allowed enlarging significantly number of possible applications, especially in existing buildings. The Guidebook illustrates with several cases the instrumentation for the monitoring and assessment of indoor climate.

  16. Does better information about hospital quality affect patients’ choice? Empirical findings from Germany

    OpenAIRE

    Wübker, Ansgar; Sauerland, Dirk; Wübker, Achim

    2008-01-01

    Background: Economic theory strongly suggests that better information about the quality of care affects patients’ choice of health service providers. However, we have little empirical evidence about the impact of information provided on provider’s choice in Germany. Problem: In Germany, we recently find publicly available information about hospital quality. For example, 50 percent of the hospitals in the Rhine-Ruhr area do now publish their quality data voluntarily in a comprehensive, underst...

  17. Service Quality of Online Shopping Platforms: A Case-Based Empirical and Analytical Study

    OpenAIRE

    Choi, Tsan-Ming; Chow, Pui-Sze; Kwok, Bowood; Liu, Shuk-Ching; Shen, Bin

    2013-01-01

    Customer service is crucially important for online shopping platforms (OSPs) such as eBay and Taobao. Based on the well-established service quality instruments and the scenario of the specific case on Taobao, this paper focuses on exploring the service quality of an OSP with an aim of revealing customer perceptions of the service quality associated with the provided functions and investigating their impacts on customer loyalty. By an empirical study, this paper finds that the “fulfillment and...

  18. Quality assessment of urban environment

    Science.gov (United States)

    Ovsiannikova, T. Y.; Nikolaenko, M. N.

    2015-01-01

    This paper is dedicated to the research applicability of quality management problems of construction products. It is offered to expand quality management borders in construction, transferring its principles to urban systems as economic systems of higher level, which qualitative characteristics are substantially defined by quality of construction product. Buildings and structures form spatial-material basis of cities and the most important component of life sphere - urban environment. Authors justify the need for the assessment of urban environment quality as an important factor of social welfare and life quality in urban areas. The authors suggest definition of a term "urban environment". The methodology of quality assessment of urban environment is based on integrated approach which includes the system analysis of all factors and application of both quantitative methods of assessment (calculation of particular and integrated indicators) and qualitative methods (expert estimates and surveys). The authors propose the system of indicators, characterizing quality of the urban environment. This indicators fall into four classes. The authors show the methodology of their definition. The paper presents results of quality assessment of urban environment for several Siberian regions and comparative analysis of these results.

  19. The costs and benefits of pollinator dependence: empirically-based simulations predict raspberry fruit quality.

    Science.gov (United States)

    Sáez, Agustín; Morales, Juan M; Morales, Carolina L; Harder, Lawrence D; Aizen, Marcelo A

    2018-03-24

    Globally, agriculture increasingly depends on pollinators to produce many seed and fruit crops. However, what constitutes optimal pollination service for pollinator-dependent crops remains unanswered. We developed a simulation model to identify the optimal pollination service that maximizes fruit quality in crops. The model depicts the pollination (i.e. autonomous self-fertilization, pollen deposition) and post-pollination (i.e. pollen germination, and time from germination to ovule fertilization) processes leading to fruit and seed set and allows for negative flower-pollinator interactions, specifically pistil damage. We parameterized and validated the model based on empirical observations of commercial raspberry in western Argentina. To assess the effects of pollination intensity for fruit production, we conducted simulations over a range of visit number per flower by the two primary managed pollinators worldwide, Apis mellifera and Bombus terrestris. Simulations identified that ~15-35 visits per flower by A. mellifera or ~10-20 visits by B. terrestris provide adequate pollination and maximize raspberry fruit quality (i.e. estimated as the proportion of ovules that develop into drupelets). Visits in excess of these optima reduce simulated fruit quality, and flowers receiving > 670 honey-bee visits or > 470 bumble-bee visits would produce fruits of poorer quality than those receiving no bee visits. The simulations generated consistent, unbiased predictions of fruit quality for 12 raspberry fields. This model could be adapted easily to other animal-pollinated crops and used to guide efficient pollinator management in any agro-ecosystem. This article is protected by copyright. All rights reserved. This article is protected by copyright. All rights reserved.

  20. An Empirical Investigation of the Relationship between Quality Initiatives and Financial Performance

    Directory of Open Access Journals (Sweden)

    Ali Uyar

    2008-01-01

    Full Text Available Using survey data from 102 industrial enterprises, this study empirically examines the extent to which quality initiatives are implemented and the effects of quality initiatives on financial performance amongst top Turkish 500 industrial enterprises. The findings of the study are: (1 majority of Turkey’s top 500 industrial enterprises implement at least one quality initiative; (2 there are significant associations between implementing quality initiatives and top 500 ranking; (3 and qualityinitiative implementing companies outperform in financial performance compared to non-quality-initiative implementing companies.

  1. The Northeast Stream Quality Assessment

    Science.gov (United States)

    Van Metre, Peter C.; Riva-Murray, Karen; Coles, James F.

    2016-04-22

    In 2016, the U.S. Geological Survey (USGS) National Water-Quality Assessment (NAWQA) is assessing stream quality in the northeastern United States. The goal of the Northeast Stream Quality Assessment (NESQA) is to assess the quality of streams in the region by characterizing multiple water-quality factors that are stressors to aquatic life and evaluating the relation between these stressors and biological communities. The focus of NESQA in 2016 will be on the effects of urbanization and agriculture on stream quality in all or parts of eight states: Connecticut, Massachusetts, New Hampshire, New Jersey, New York, Pennsylvania, Rhode Island, and Vermont.Findings will provide the public and policymakers with information about the most critical factors affecting stream quality, thus providing insights about possible approaches to protect the health of streams in the region. The NESQA study will be the fourth regional study conducted as part of NAWQA and will be of similar design and scope to the first three, in the Midwest in 2013, the Southeast in 2014, and the Pacific Northwest in 2015 (http://txpub.usgs.gov/RSQA/).

  2. Indoor Climate Quality Assessment -

    DEFF Research Database (Denmark)

    Ansaldi, Roberta; Asadi, Ehsan; Costa, José Joaquim

    This Guidebook gives building professionals useful support in the practical measurements and monitoring of the indoor climate in buildings. It is evident that energy consumption in a building is directly influenced by required and maintained indoor comfort level. Wireless technologies for measure......This Guidebook gives building professionals useful support in the practical measurements and monitoring of the indoor climate in buildings. It is evident that energy consumption in a building is directly influenced by required and maintained indoor comfort level. Wireless technologies...... for measurement and monitoring have allowed a significantly increased number of possible applications, especially in existing buildings. The Guidebook illustrates several cases with the instrumentation of the monitoring and assessment of indoor climate....

  3. Empirical Evaluation Indicators in Thai Higher Education: Theory-Based Multidimensional Learners' Assessment

    Science.gov (United States)

    Sritanyarat, Dawisa; Russ-Eft, Darlene

    2016-01-01

    This study proposed empirical indicators which can be validated and adopted in higher education institutions to evaluate quality of teaching and learning, and to serve as an evaluation criteria for human resource management and development of higher institutions in Thailand. The main purpose of this study was to develop empirical indicators of a…

  4. The French CAT: An Assessment of Its Empirical Validity.

    Science.gov (United States)

    Burston, Jack

    1995-01-01

    Investigates the empirical validity of the Monash-Melbourne computer adaptive test for French (French CAT). The article focuses on the accuracy of the French CAT as a tool for streaming incoming university students into three levels of a first-year (post-high school) French course. The test is demonstrated to be a good predictor of short-term…

  5. The Socratic Method: Empirical Assessment of a Psychology Capstone Course

    Science.gov (United States)

    Burns, Lawrence R.; Stephenson, Paul L.; Bellamy, Katy

    2016-01-01

    Although students make some epistemological progress during college, most graduate without developing meaning-making strategies that reflect an understanding that knowledge is socially constructed. Using a pre-test-post-test design and a within-subjects 2 × 2 mixed-design ANOVA, this study reports on empirical findings which support the Socratic…

  6. Competition and quality indicators in the health care sector : Empirical evidence from the Dutch hospital sector

    NARCIS (Netherlands)

    Croes, Ramsis; Krabbe, Yvonne; Mikkers, Misja

    There is much debate about the effect of competition in healthcare and especially the effect of competition on the quality of healthcare, although empirical evidence on this subject is mixed. The Netherlands provides an interesting case in this debate. The Dutch system could be characterized as a

  7. CAN QUALITY STANDARDS INDIRECTLY IMPROVE EMPLOYEE'S WAGE: EMPIRICAL EVIDENCES FROM MONTENEGRO

    OpenAIRE

    Tatjana Stanovcic; Djurdjica Perovic; Ilija Moric; Sanja Pekovic

    2010-01-01

    In this paper we investigate the indirect effect of ISO 9000 adoption on employees' wage. Actually, the adoption of quality standards induces firm's re-organization, underlying improvement of work environment and employees' involvement. Therefore, in this paper, we analyze how work environment and employees' involvement are associated with employees' wage. Our empirical results based on Montenegrin employee database from two quality certified firms indicate that better work environment has no...

  8. Assessment of Corporate Governance in Jordan: An Empirical Study

    Directory of Open Access Journals (Sweden)

    Sinan S. Abbadi

    2011-09-01

    Full Text Available This paper assesses the reality of corporate governance in Jordan. It identifies the framework of corporate governance, which has here been set into two dimensions – institutionalisations and regulations – and describes the five major principles of corporate governance. The study was carried out by interviews with key employees and the review of related laws and selected annual reports. The study found (1 basic shareholder rights were honoured in decision-making, except for large decisions such as major asset sales; (2 shareholders were not treated equitably in practice, although controllers sometimes took action and prohibited insider trading; (3 the role and rights of stakeholders in corporate governance were respected, and stakeholders had a number of legal protections, which were largely covered in Jordan's Company Law; (4 disclosure and transparency were observed to a large extent, although limited to quantity rather than quality, because Jordan has fully adopted IFRS and ISA and (5 boards largely fulfilled their responsibilities, as these are extensively defined by law and regulation.

  9. An empirical assessment of high-performing medical groups: results from a national study.

    Science.gov (United States)

    Shortell, Stephen M; Schmittdiel, Julie; Wang, Margaret C; Li, Rui; Gillies, Robin R; Casalino, Lawrence P; Bodenheimer, Thomas; Rundall, Thomas G

    2005-08-01

    The performance of medical groups is receiving increased attention. Relatively little conceptual or empirical work exists that examines the various dimensions of medical group performance. Using a national database of 693 medical groups, this article develops a scorecard approach to assessing group performance and presents a theory-driven framework for differentiating between high-performing versus low-performing medical groups. The clinical quality of care, financial performance, and organizational learning capability of medical groups are assessed in relation to environmental forces, resource acquisition and resource deployment factors, and a quality-centered culture. Findings support the utility of the performance scorecard approach and identification of a number of key factors differentiating high-performing from low-performing groups including, in particular, the importance of a quality-centered culture and the requirement of outside reporting from third party organizations. The findings hold a number of important implications for policy and practice, and the framework presented provides a foundation for future research.

  10. The relation of auditor tenure to audit quality: Empirical evidence from the German audit market

    Directory of Open Access Journals (Sweden)

    Patrick Krauß

    2013-03-01

    Full Text Available This study investigates whether and how the length of an auditor-client relationship affects audit quality. Using a sample of 1,071 firm observations of large listed companies for the sample period of 2005 to 2011, the study is one of the first to empirically analyze this auditing issue for the German audit market. The empirical results demonstrate that neither short term nor long term audit firm tenure seems to be a significant factor with regard to audit quality in Germany. In the wake of the ongoing discussion in the European Union regarding the optimal audit tenure length for the quality of the conducted statutory audits, our findings do not support the idea of a mandatory audit firm rotation rule.

  11. EQA: Educational Quality Assessment. Commentary.

    Science.gov (United States)

    Pennsylvania State Dept. of Education, Harrisburg. Div. of Educational Testing and Evaluation.

    In response to a prevailing demand for better quality education in public schools in Pennsylvania, procedures were developed to measure the adequacy and the efficiency of the educational programs in public schools. The objectives currently assessed are in the following areas: communication skills (reading and writing), mathematics, self-esteem,…

  12. hydrochemical characteristics and quality assessment

    African Journals Online (AJOL)

    The drinking water quality assessment indicates the values for all the hydrochemical parameters are within the maximum permissible standard by WHO, ... (RUWATSAN) and United Nation Children Education. Fund (UNICEF). Because of ... hydrochemical characteristics and evaluation of shallow groundwater in a typical ...

  13. Assessing Question Quality Using NLP

    Science.gov (United States)

    Kopp, Kristopher J.; Johnson, Amy M.; Crossley, Scott A.; McNamara, Danielle S.

    2017-01-01

    An NLP algorithm was developed to assess question quality to inform feedback on questions generated by students within iSTART (an intelligent tutoring system that teaches reading strategies). A corpus of 4575 questions was coded using a four-level taxonomy. NLP indices were calculated for each question and machine learning was used to predict…

  14. Semi-Empiric Algorithm for Assessment of the Vehicle Mobility

    Directory of Open Access Journals (Sweden)

    Ticusor CIOBOTARU

    2009-12-01

    Full Text Available The mobility of military vehicles plays a key role in operation. The ability to reach the desired area in war theatre represents the most important condition for a successful accomplishment of the mission for military vehicles. The off-road vehicles face a broad spectrum of terrains to cross. These terrains differ by geometry and the soil characteristics.NATO References Mobility Model (NRMM software is based on empirical relationship between the terrain characteristics, running conditions and vehicles design. The paper presents the main results of a comparative mobility analysis for M1 and HMMWV vehicles obtained using NRMM.

  15. The relationship between productivity and health-related quality of life: an empirical exploration in persons with low back pain.

    Science.gov (United States)

    Lamers, Leida M; Meerding, Willem-Jan; Severens, Johan L; Brouwer, Werner B F

    2005-04-01

    In economic evaluation of health care programmes normally health-related quality of life is part of measurement of a programme's effectiveness and productivity part of its costs. In this paper the relationship between quality of life and productivity is highlighted and empirically assessed in persons suffering from low back pain. A secondary analysis was performed on data from a sample of 483 patients treated for low back pain. Periodically, both quality of life (EQ-5D) and productivity indicators for both paid and unpaid work were measured. Mean EQ-5D scores were compared for groups of patients classified by level of productivity. The relationship between quality of life and productivity was also assessed using Spearman rank correlation coefficients. Mean EQ-5D scores for patients without productivity losses were a half to a full standard deviation higher than for patients with the lowest levels of productivity. The correlation between quality of life and productivity was moderate. Lower levels of quality of life were associated with efficiency loss and absenteeism. However, due to the moderate strength of the relation the use of information on quality of life to model productivity costs in case of absence of productivity data was not recommended.

  16. Selection in reported epidemiological risks: an empirical assessment.

    Directory of Open Access Journals (Sweden)

    Fotini K Kavvoura

    2007-03-01

    Full Text Available Epidemiological studies may be subject to selective reporting, but empirical evidence thereof is limited. We empirically evaluated the extent of selection of significant results and large effect sizes in a large sample of recent articles.We evaluated 389 articles of epidemiological studies that reported, in their respective abstracts, at least one relative risk for a continuous risk factor in contrasts based on median, tertile, quartile, or quintile categorizations. We examined the proportion and correlates of reporting statistically significant and nonsignificant results in the abstract and whether the magnitude of the relative risks presented (coined to be consistently > or =1.00 differs depending on the type of contrast used for the risk factor. In 342 articles (87.9%, > or =1 statistically significant relative risk was reported in the abstract, while only 169 articles (43.4% reported > or =1 statistically nonsignificant relative risk in the abstract. Reporting of statistically significant results was more common with structured abstracts, and was less common in US-based studies and in cancer outcomes. Among 50 randomly selected articles in which the full text was examined, a median of nine (interquartile range 5-16 statistically significant and six (interquartile range 3-16 statistically nonsignificant relative risks were presented (p = 0.25. Paradoxically, the smallest presented relative risks were based on the contrasts of extreme quintiles; on average, the relative risk magnitude was 1.41-, 1.42-, and 1.36-fold larger in contrasts of extreme quartiles, extreme tertiles, and above-versus-below median values, respectively (p < 0.001.Published epidemiological investigations almost universally highlight significant associations between risk factors and outcomes. For continuous risk factors, investigators selectively present contrasts between more extreme groups, when relative risks are inherently lower.

  17. Empirical Evaluation Indicators in Thai Higher Education: Theory-Based Multidimensional Learners’ Assessment

    OpenAIRE

    Dawisa Sritanyarat; Darlene Russ-Eft

    2016-01-01

    This study proposed empirical indicators which can be validated and adopted in higher education institutions to evaluate quality of teaching and learning, and to serve as an evaluation criteria for human resource management and development of higher institutions in Thailand. The main purpose of this study was to develop empirical indicators of a theoretically-based multidimensional learners’ evaluation in Thai higher education adopting the National Institute of Development A...

  18. Assessing quality in cardiac surgery

    Directory of Open Access Journals (Sweden)

    Samer A.M. Nashef

    2005-07-01

    Full Text Available There is a the strong temporal, if not causal, link between the intervention and the outcome in cardiac surgery and therefore a link becomes established between operative mortality and the measurement of surgical performance. In Britain the law stipulates that data collected by any public body or using public funds must be made freely available. Tools and mechanisms we devise and develop are likely to form the models on which the quality of care is assessed in other surgical and perhaps medical specialties. Measuring professional performance should be done by the profession. To measure risk there are a number of scores as crude mortality is not enough. A very important benefit of assessing the risk of death is to use this knowledge in the determination of the indication to operate. The second benefit is in the assessment of the quality of care as risk prediction gives a standard against performance of hospitals and surgeons. Peer review and “naming and shaming” are two mechanisms to monitor quality. There are two potentially damaging outcomes from the publication of results in a league-table form: the first is the damage to the hospital; the second is to refuse to operate on high-risk patients. There is a real need for quality monitoring in medicine in general and in cardiac surgery in particular. Good quality surgical work requires robust knowledge of three crucial variables: activity, risk prediction and performance. In Europe, the three major specialist societies have agreed to establish the European Cardiovascular and Thoracic Surgery Institute of Accreditation (ECTSIA. Performance monitoring is soon to become imperative. If we surgeons are not on board, we shall have no control on its final destination, and the consequences may be equally damaging to us and to our patients.

  19. External quality assessment: best practice.

    Science.gov (United States)

    James, David; Ames, Darren; Lopez, Berenice; Still, Rachel; Simpson, Wiliam; Twomey, Patrick

    2014-08-01

    There is a requirement for accredited laboratories to participate in external quality assessment (EQA) schemes, but there is wide variation in understanding as to what is required by the laboratories and scheme providers in fulfilling this. This is not helped by a diversity of language used in connection with EQA; Proficiency testing (PT), EQA schemes, and EQA programmes, each of which have different meanings and offerings in the context of improving laboratory quality. We examine these differences, and identify what factors are important in supporting quality within a clinical laboratory and what should influence the choice of EQA programme. Equally as important is how EQA samples are handled within the laboratory, and how the information provided by the EQA programme is used. EQA programmes are a key element of a laboratory's quality assurance framework, but laboratories should have an understanding of what their EQA programmes are capable of demonstrating, how they should be used within the laboratory, and how they support quality. EQA providers should be clear as to what type of programme they provide - PT, EQA Scheme or EQA Programme. Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://group.bmj.com/group/rights-licensing/permissions.

  20. Orion Entry Handling Qualities Assessments

    Science.gov (United States)

    Bihari, B.; Tiggers, M.; Strahan, A.; Gonzalez, R.; Sullivan, K.; Stephens, J. P.; Hart, J.; Law, H., III; Bilimoria, K.; Bailey, R.

    2011-01-01

    The Orion Command Module (CM) is a capsule designed to bring crew back from the International Space Station (ISS), the moon and beyond. The atmospheric entry portion of the flight is deigned to be flown in autopilot mode for nominal situations. However, there exists the possibility for the crew to take over manual control in off-nominal situations. In these instances, the spacecraft must meet specific handling qualities criteria. To address these criteria two separate assessments of the Orion CM s entry Handling Qualities (HQ) were conducted at NASA s Johnson Space Center (JSC) using the Cooper-Harper scale (Cooper & Harper, 1969). These assessments were conducted in the summers of 2008 and 2010 using the Advanced NASA Technology Architecture for Exploration Studies (ANTARES) six degree of freedom, high fidelity Guidance, Navigation, and Control (GN&C) simulation. This paper will address the specifics of the handling qualities criteria, the vehicle configuration, the scenarios flown, the simulation background and setup, crew interfaces and displays, piloting techniques, ratings and crew comments, pre- and post-fight briefings, lessons learned and changes made to improve the overall system performance. The data collection tools, methods, data reduction and output reports will also be discussed. The objective of the 2008 entry HQ assessment was to evaluate the handling qualities of the CM during a lunar skip return. A lunar skip entry case was selected because it was considered the most demanding of all bank control scenarios. Even though skip entry is not planned to be flown manually, it was hypothesized that if a pilot could fly the harder skip entry case, then they could also fly a simpler loads managed or ballistic (constant bank rate command) entry scenario. In addition, with the evaluation set-up of multiple tasks within the entry case, handling qualities ratings collected in the evaluation could be used to assess other scenarios such as the constant bank angle

  1. CAN QUALITY STANDARDS INDIRECTLY IMPROVE EMPLOYEE'S WAGE: EMPIRICAL EVIDENCES FROM MONTENEGRO

    Directory of Open Access Journals (Sweden)

    Tatjana Stanovcic

    2010-12-01

    Full Text Available In this paper we investigate the indirect effect of ISO 9000 adoption on employees' wage. Actually, the adoption of quality standards induces firm's re-organization, underlying improvement of work environment and employees' involvement. Therefore, in this paper, we analyze how work environment and employees' involvement are associated with employees' wage. Our empirical results based on Montenegrin employee database from two quality certified firms indicate that better work environment has no influence on employees' wage while employee involvement is positively associated with higher wages.

  2. Continuous assessment and matriculation examination marks – An empirical examination

    Directory of Open Access Journals (Sweden)

    Servaas van der Berg

    2015-12-01

    This study compares CASS data to the externally assessed matric exam marks for a number of subjects. There are two signalling dimensions to inaccurate assessments: (i Inflated CASS marks can give students a false sense of security and lead to diminished exam effort. (ii A weak correlation between CASS and the exam marks could mean poor signalling in another dimension: Relatively good students may get relatively low CASS marks. Such low correlations indicate poor assessment reliability, as the examination and continuous assessment should both be testing mastery of the same national curriculum. The paper analyses the extent of each of these dimensions of weak signalling in South African schools and draws disturbing conclusions for a large part of the school system.

  3. How does auditors’ work stress affect audit quality? Empirical evidence from the Chinese stock market

    Directory of Open Access Journals (Sweden)

    Huanmin Yan

    2016-12-01

    Full Text Available With reference to the Job Demands–Control Model, we empirically examine the effect of auditors’ work stress on audit quality using a sample of Chinese A-share listed companies and their signature auditors from 2009 to 2013. The results show that (1 there is generally no pervasive deterioration in audit quality resulting from auditors’ work stress; (2 there is a significant negative association between work stress and audit quality in the initial audits of new clients; and (3 the perception of work stress depends on auditors’ individual characteristics. Auditors from international audit firms and those in the role of partner respond more strongly to work stress than industry experts. Auditors tend to react more intensively when dealing with state-owned companies. We suggest that audit firms attach more importance to auditors’ work stress and rationalize their allocation of audit resources to ensure high audit quality.

  4. Competition and quality indicators in the health care sector: empirical evidence from the Dutch hospital sector.

    Science.gov (United States)

    Croes, R R; Krabbe-Alkemade, Y J F M; Mikkers, M C

    2018-01-01

    There is much debate about the effect of competition in healthcare and especially the effect of competition on the quality of healthcare, although empirical evidence on this subject is mixed. The Netherlands provides an interesting case in this debate. The Dutch system could be characterized as a system involving managed competition and mandatory healthcare insurance. Information about the quality of care provided by hospitals has been publicly available since 2008. In this paper, we evaluate the relationship between quality scores for three diagnosis groups and the market power indicators of hospitals. We estimate the impact of competition on quality in an environment of liberalized pricing. For this research, we used unique price and production data relating to three diagnosis groups (cataract, adenoid and tonsils, bladder tumor) produced by Dutch hospitals in the period 2008-2011. We also used the quality indicators relating to these diagnosis groups. We reveal a negative relationship between market share and quality score for two of the three diagnosis groups studied, meaning that hospitals in competitive markets have better quality scores than those in concentrated markets. We therefore conclude that more competition is associated with higher quality scores.

  5. Assessment Of Bubblepoint Oil Formation Volume Factor Empirical ...

    African Journals Online (AJOL)

    The oil formation volume factor (FVF) among other factors is the most important factor that enables the calculation of the amount of reserves in a particular reservoir. In this paper, the existing oil formation volume factor correlations were assessed for their performance using data from the Niger Delta Region. Two hundred ...

  6. Technology Applications for Children with ADHD: Assessing the Empirical Support.

    Science.gov (United States)

    Xu, Chunzhen; Reid, Robert; Steckelberg, Allen

    2002-01-01

    This article reviews technology research (n=20) with students with attention deficit hyperactivity disorder (ADHD) in five categories: computer-assisted instruction, computer-based cognitive training, biofeedback training, assessment, and behavior modification. Analysis of available research suggests there is little well controlled experimental…

  7. Quality assessment in higher education using the SERVQUALQ model

    Directory of Open Access Journals (Sweden)

    Sabina Đonlagić

    2015-01-01

    Full Text Available Economy in Bosnia and Herzegovina is striving towards growth and increased employment and it has been proven by empirical studies worldwide that higher education contributes to socio-economic development of a country. Universities are important for generation, preservation and dissemination of knowledge in order to contribute to socio-economic benefits of a country. Higher education institutions are being pressured to improve value for their activities and providing quality higher education service to students should be taken seriously. In this paper we will address the emerging demand for quality in higher education. Higher education institutions should assess quality of their services and establish methods for improving quality. Activities of quality assurance should be integrated into the management process at higher education institutions. This paper is addressing the issue of service quality measurement in higher education institutions. The most frequently used model in this context is the SERVQUAL model. This model is measuring quality from the students' point of view, since students are considered to be one of the most important stakeholders for a higher education institution. The main objective of this research is to provide empirical evidence that the adapted SERVQAL model can be used in higher education and to identify the service quality gap based on its application at one institution of higher education (Faculty of Economics in Bosnia and Herzegovina. Furthermore, results of the gap analysis using the SERVQUAL methodology provide relevant information in which areas improvement is necessary in order to enhance service quality.

  8. lessons and challenges from software quality assessment

    African Journals Online (AJOL)

    DJFLEX

    We discussed these lessons and challenges across two measurable characteristics namely quality of design (life cycle ... KEYWORDS: Software, Software Quality ,Quality Standard, Characteristics, Assessment, Challanges, lessons. 1. ... F. Bakpo, Department of Computer Science, University of Nigeria, Nsukka, Nigeria ...

  9. Empirical assessment of a threshold model for sylvatic plague

    DEFF Research Database (Denmark)

    Davis, Stephen; Leirs, Herwig; Viljugrein, H.

    2007-01-01

    Plague surveillance programmes established in Kazakhstan, Central Asia, during the previous century, have generated large plague archives that have been used to parameterize an abundance threshold model for sylvatic plague in great gerbil (Rhombomys opimus) populations. Here, we assess the model...... examine six hypotheses that could explain the resulting false positive predictions, namely (i) including end-of-outbreak data erroneously lowers the estimated threshold, (ii) too few gerbils were tested, (iii) plague becomes locally extinct, (iv) the abundance of fleas was too low, (v) the climate...

  10. MULTICRITERIA APPROACH FOR ASSESSMENT OF ENVIRONMENTAL QUALITY

    OpenAIRE

    Boris Agarski; Igor Budak; Janko Hodolič; Đorđe Vukelić

    2010-01-01

    Environment is important and inevitable element that has direct impact on life quality. Furthermore, environmental protection represents prerequisite for healthy and sustainable way of life. Environmental quality can be represented through specific indicators that can be identified, measured, analyzed, and assessed with adequate methods for assessment of environmental quality. Problem of insight in total environmental quality, caused by different, mutually incomparable, indicators of environm...

  11. An empirical assessment of bulimic patients using multiple measures.

    Science.gov (United States)

    Rybicki, D J; Lepkowsky, C M; Arndt, S

    1989-01-01

    This paper examines personality and clinical assessment data from bulimic patients and from a control group of normal volunteer subjects. Thirty-eight bulimic females representing consecutive admissions to an outpatient treatment program were administered a battery of tests including the MMPI, FIRO-B, Beck Depression Inventory, Moos Family Environment Scale, Bem Sex Role Inventory, and Conte Borderline Syndrome Index. Twenty-six normal females also completed this testing battery. As expected, bulimics differed from normals on several clinical scales, including the MMPI, Beck Depression Inventory, and Conte Borderline Syndrome Index. More importantly, however, were the results of the cluster analysis of the bulimic MMPI scores which demonstrated two clearly defined subtypes of bulimia: a mildly disturbed group that shows developmental conflicts and adjustment difficulties, and a severely disturbed group that displays low ego strength and characteristics suggesting an Axis II personality disturbance. The other testing measures failed to reach significance levels. Implications for assessment and treatment are explored in the context of these results.

  12. Treatment Utility of Functional versus Empiric Assessment within Consultation for Reading Problems

    Science.gov (United States)

    Beavers, Karen F.; Kratochwill, Thomas R.; Braden, Jeffery P.

    2004-01-01

    In this study, 18 teachers and 32 of their students who had reading difficulties were randomly assigned to one of two assessment conditions. In the functional assessment condition, consultants identified functional relationships among environmental events and targeted reading behaviors to develop an intervention plan. In the empiric condition,…

  13. Higher Education Quality Assessment Model: Towards Achieving Educational Quality Standard

    Science.gov (United States)

    Noaman, Amin Y.; Ragab, Abdul Hamid M.; Madbouly, Ayman I.; Khedra, Ahmed M.; Fayoumi, Ayman G.

    2017-01-01

    This paper presents a developed higher education quality assessment model (HEQAM) that can be applied for enhancement of university services. This is because there is no universal unified quality standard model that can be used to assess the quality criteria of higher education institutes. The analytical hierarchy process is used to identify the…

  14. How magnetic are Finnish hospitals measured by transformational leadership and empirical quality outcomes?

    Science.gov (United States)

    Kvist, Tarja; Mäntynen, Raija; Turunen, Hannele; Partanen, Pirjo; Miettinen, Merja; Wolf, Gail A; Vehviläinen-Julkunen, Katri

    2013-01-01

      The overall aim of this study was to examine nurses' and patients' perceptions of the Magnet model components of transformational leadership and empirical quality outcomes in four Finnish hospitals and to determine if the evidence for transformational leadership and empirical quality outcomes is the same or different in the four hospitals.   This report presents baseline measurements for a longitudinal study of the adaptation of the Magnet model in Finnish hospitals.   Web-based surveys and mailed questionnaires were used in 2008-2009 to collect data from patients (n = 2566) about their satisfaction with care, and from nursing staff about transformational leadership (n = 1151), job satisfaction (n = 2707) and patient safety culture (n = 925) in the selected hospitals.   Awareness of the work of nursing leaders was low. Nurses reported a high level of job satisfaction. Patient safety culture varied considerably between the four hospitals. Patients believed they generally received excellent quality care.   Leadership systems are in transition at the hospitals. Patient safety culture is a complex phenomenon that may be unfamiliar to respondents. The results of the study provide a baseline description to guide the journey toward development of Magnet standards.   Finnish nursing leaders, especially nursing directors, should increase their visibility by working more closely with their staff. They should also pay attention to giving direct feedback about work generally and patient safety issues in particular. © 2012 Blackwell Publishing Ltd.

  15. Institutional quality and economic growth: Empirical evidence from the Sudanese economy

    Directory of Open Access Journals (Sweden)

    Alexiou Constantinos

    2014-01-01

    Full Text Available This study aims to explore the extent to which conventional methods used in the majority of relevant growth studies can successfully interpret the economic performance of a highly underdeveloped African country such as Sudan. Applying an ARDL boundstesting approach to cointegration proposed by Pesaran et al. (2001, we look into the short-run as well as long-run relationships between institutional and various other key economic variables and economic growth over the period 1972-2008. The empirical results obtained suggest that, for the Sudanese economy, the quality of the institutional environment is one of the most important factors in defining economic prosperity.

  16. Repeat: a framework to assess empirical reproducibility in biomedical research

    Directory of Open Access Journals (Sweden)

    Leslie D. McIntosh

    2017-09-01

    Full Text Available Abstract Background The reproducibility of research is essential to rigorous science, yet significant concerns of the reliability and verifiability of biomedical research have been recently highlighted. Ongoing efforts across several domains of science and policy are working to clarify the fundamental characteristics of reproducibility and to enhance the transparency and accessibility of research. Methods The aim of the proceeding work is to develop an assessment tool operationalizing key concepts of research transparency in the biomedical domain, specifically for secondary biomedical data research using electronic health record data. The tool (RepeAT was developed through a multi-phase process that involved coding and extracting recommendations and practices for improving reproducibility from publications and reports across the biomedical and statistical sciences, field testing the instrument, and refining variables. Results RepeAT includes 119 unique variables grouped into five categories (research design and aim, database and data collection methods, data mining and data cleaning, data analysis, data sharing and documentation. Preliminary results in manually processing 40 scientific manuscripts indicate components of the proposed framework with strong inter-rater reliability, as well as directions for further research and refinement of RepeAT. Conclusions The use of RepeAT may allow the biomedical community to have a better understanding of the current practices of research transparency and accessibility among principal investigators. Common adoption of RepeAT may improve reporting of research practices and the availability of research outputs. Additionally, use of RepeAT will facilitate comparisons of research transparency and accessibility across domains and institutions.

  17. Patients' perceptions of service quality dimensions: an empirical examination of health care in New Zealand.

    Science.gov (United States)

    Clemes, M D; Ozanne, L K; Laurensen, W L

    2001-01-01

    The 1984 liberalization of the New Zealand economy has resulted in a health care sector that has become very competitive (Zwier and Clarke, 1999). The private sector is now able to supply health care services and, as a result, a greater value is being placed on patient satisfaction (Zwier and Clarke, 1999). However, despite the increasing focus on customer satisfaction, research into health care patients' perceptions of the dimensions of service quality is scarce. This can be problematic, as quality of care is an essential issue in the strategic marketing of health care services (Turner and Pol, 1995). This study takes a step towards addressing this deficiency by identifying patients' perceptions of the dimensions of service quality in health care. The findings of this study are based on the empirical analysis of a sample of 389 respondents interviewed by telephone. The findings indicate that the service quality dimensions identified in this health care specific study differ in number and dimensional structure from the widely adopted service quality dimensions first identified by Parasuraman, Berry and Zeithaml (1988): reliability, responsiveness, assurance, empathy and tangibles. The service quality dimensions identified in this study were: reliability, tangibles, assurance, empathy, food, access, outcome, admission, discharge and responsiveness. In addition, health care patients perceive the service quality dimensions relating to the core product in health care delivery (for example, outcome and reliability) as more important than the service quality dimensions relating to the peripheral product in health care delivery (for example, food, access and tangibles). Finally, the results of this study suggest that patients with different geographic, demographic, and behavioristic characteristics have different needs and wants during health care delivery and therefore perceive different service quality dimensions as important.

  18. An empirical assessment of which inland floods can be managed.

    Science.gov (United States)

    Mogollón, Beatriz; Frimpong, Emmanuel A; Hoegh, Andrew B; Angermeier, Paul L

    2016-02-01

    Riverine flooding is a significant global issue. Although it is well documented that the influence of landscape structure on floods decreases as flood size increases, studies that define a threshold flood-return period, above which landscape features such as topography, land cover and impoundments can curtail floods, are lacking. Further, the relative influences of natural versus built features on floods is poorly understood. Assumptions about the types of floods that can be managed have considerable implications for the cost-effectiveness of decisions to invest in transforming land cover (e.g., reforestation) and in constructing structures (e.g., storm-water ponds) to control floods. This study defines parameters of floods for which changes in landscape structure can have an impact. We compare nine flood-return periods across 31 watersheds with widely varying topography and land cover in the southeastern United States, using long-term hydrologic records (≥20 years). We also assess the effects of built flow-regulating features (best management practices and artificial water bodies) on selected flood metrics across urban watersheds. We show that landscape features affect magnitude and duration of only those floods with return periods ≤10 years, which suggests that larger floods cannot be managed effectively by manipulating landscape structure. Overall, urban watersheds exhibited larger (270 m(3)/s) but quicker (0.41 days) floods than non-urban watersheds (50 m(3)/s and 1.5 days). However, urban watersheds with more flow-regulating features had lower flood magnitudes (154 m(3)/s), but similar flood durations (0.55 days), compared to urban watersheds with fewer flow-regulating features (360 m(3)/s and 0.23 days). Our analysis provides insight into the magnitude, duration and count of floods that can be curtailed by landscape structure and its management. Our findings are relevant to other areas with similar climate, topography, and land use, and can help

  19. A New Empirical Sewer Water Quality Model for the Prediction of WWTP Influent Quality

    NARCIS (Netherlands)

    Langeveld, J.G.; Schilperoort, R.P.S.; Rombouts, P.M.M.; Benedetti, L.; Amerlinck, Y.; de Jonge, J.; Flameling, T.; Nopens, I.; Weijers, S.

    2014-01-01

    Modelling of the integrated urban water system is a powerful tool to optimise wastewater system performance or to find cost-effective solutions for receiving water problems. One of the challenges of integrated modelling is the prediction of water quality at the inlet of a WWTP. Recent applications

  20. School Responsiveness to Quality Rankings. An Empirical Analysis of Secondary Education in the Netherlands

    NARCIS (Netherlands)

    Koning, P.W.C.; van der Wiel, K.

    2012-01-01

    This paper assesses the response of Dutch secondary schools to the publication of relative quality ratings in a national newspaper (Trouw). Our research design exploits the discontinuities in the ranking formula that was used to generate five consecutive levels for the overall quality of schools. We

  1. Vertical Integration of Hospitals and Physicians: Economic Theory and Empirical Evidence on Spending and Quality.

    Science.gov (United States)

    Post, Brady; Buchmueller, Tom; Ryan, Andrew M

    2017-08-01

    Hospital-physician vertical integration is on the rise. While increased efficiencies may be possible, emerging research raises concerns about anticompetitive behavior, spending increases, and uncertain effects on quality. In this review, we bring together several of the key theories of vertical integration that exist in the neoclassical and institutional economics literatures and apply these theories to the hospital-physician relationship. We also conduct a literature review of the effects of vertical integration on prices, spending, and quality in the growing body of evidence ( n = 15) to evaluate which of these frameworks have the strongest empirical support. We find some support for vertical foreclosure as a framework for explaining the observed results. We suggest a conceptual model and identify directions for future research. Based on our analysis, we conclude that vertical integration poses a threat to the affordability of health services and merits special attention from policymakers and antitrust authorities.

  2. Competition policies and environmental quality: Empirical analysis of the electricity sector in OECD countries

    International Nuclear Information System (INIS)

    Asane-Otoo, Emmanuel

    2016-01-01

    Over the last decades, electricity markets across OECD countries have been subjected to profound structural changes with far-reaching implications on the economy and the environment. This paper investigates the effect of restructuring – changes in entry regulations, the degree of vertical integration and ownership structure – on GHG emissions. The findings show that competition policies – particularly reducing the degree of vertical integration and increasing privatization – correlate negatively with emission intensity. However, the environmental effect of reducing market entry barriers is generally insignificant. Integration of competition and stringent environmental policies are required to reduce GHG emissions and improve environmental quality. - Highlights: •Empirical study on competition policies and GHG emissions from the electricity sector. •Product market regulation scores for OECD countries are used to measure the extent of competition. •Evidence of a positive relationship between competition policies and environmental quality. •Integration of competition and stringent environmental policies is recommended.

  3. MULTICRITERIA APPROACH FOR ASSESSMENT OF ENVIRONMENTAL QUALITY

    Directory of Open Access Journals (Sweden)

    Boris Agarski

    2010-06-01

    Full Text Available Environment is important and inevitable element that has direct impact on life quality. Furthermore, environmental protection represents prerequisite for healthy and sustainable way of life. Environmental quality can be represented through specific indicators that can be identified, measured, analyzed, and assessed with adequate methods for assessment of environmental quality. Problem of insight in total environmental quality, caused by different, mutually incomparable, indicators of environmental load and difficult expression of overall environment quality, can be solved with multicriterial assessment. This paper presents appliance of multicriterial methods for analysis of indicators that represent environmental quality for several sites.

  4. Material quality assurance risk assessment.

    Science.gov (United States)

    2013-01-01

    Over the past two decades the role of SHA has shifted from quality control (QC) of materials and : placement techniques to quality assurance (QA) and acceptance. The role of the Office of Materials : Technology (OMT) has been shifting towards assuran...

  5. Empirical Test of Bullies’ Status Goals : Assessing Direct Goals, Aggression, and Prestige

    NARCIS (Netherlands)

    Sijtsema, Jelle J.; Veenstra, Rene; Lindenberg, Siegwart; Salmivalli, Christina

    2009-01-01

    The literature suggests that status goals are one of the driving motivations behind bullying behavior, yet this conjecture has rarely if ever been examined empirically. This study assessed status goals in three ways, using dyadic network analysis to analyze the relations and goals among 10-11 and

  6. An empirical, hierarchical typology of tree species assemblages for assessing forest dynamics under global change scenarios

    Science.gov (United States)

    Jennifer K. Costanza; John W. Coulston; David N. Wear

    2017-01-01

    The composition of tree species occurring in a forest is important and can be affected by global change drivers such as climate change. To inform assessment and projection of global change impacts at broad extents, we used hierarchical cluster analysis and over 120,000 recent forest inventory plots to empirically define forest tree assemblages across the U.S., and...

  7. Assessing for suicidal behavior in youth using the Achenbach System of Empirically Based Assessment.

    Science.gov (United States)

    Van Meter, Anna R; Algorta, Guillermo Perez; Youngstrom, Eric A; Lechtman, Yana; Youngstrom, Jen K; Feeny, Norah C; Findling, Robert L

    2018-02-01

    This study investigated the clinical utility of the Achenbach System of Empirically Based Assessment (ASEBA) for identifying youth at risk for suicide. Specifically, we investigated how well the Total Problems scores and the sum of two suicide-related items (#18 "Deliberately harms self or attempts suicide" and #91 "Talks about killing self") were able to distinguish youth with a history of suicidal behavior. Youth (N = 1117) aged 5-18 were recruited for two studies of mental illness. History of suicidal behavior was assessed by semi-structured interviews (K-SADS) with youth and caregivers. Youth, caregivers, and a primary teacher each completed the appropriate form (YSR, CBCL, and TRF, respectively) of the ASEBA. Areas under the curve (AUCs) from ROC analyses and diagnostic likelihood ratios (DLRs) were used to measure the ability of both Total Problems T scores, as well as the summed score of two suicide-related items, to identify youth with a history of suicidal behavior. The Suicide Items from the CBCL and YSR performed well (AUCs = 0.85 and 0.70, respectively). The TRF Suicide Items did not perform better than chance, AUC = 0.45. The AUCs for the Total Problems scores were poor-to-fair (0.33-0.65). The CBCL Suicide Items outperformed all other scores (ps = 0.04 to youth's risk for suicidal behavior. The low burden of this approach could facilitate wide-spread screening for suicide in an increasingly at-risk population.

  8. Healthcare quality maturity assessment model based on quality drivers.

    Science.gov (United States)

    Ramadan, Nadia; Arafeh, Mazen

    2016-04-18

    Purpose - Healthcare providers differ in their readiness and maturity levels regarding quality and quality management systems applications. The purpose of this paper is to serve as a useful quantitative quality maturity-level assessment tool for healthcare organizations. Design/methodology/approach - The model proposes five quality maturity levels (chaotic, primitive, structured, mature and proficient) based on six quality drivers: top management, people, operations, culture, quality focus and accreditation. Findings - Healthcare managers can apply the model to identify the status quo, quality shortcomings and evaluating ongoing progress. Practical implications - The model has been incorporated in an interactive Excel worksheet that visually displays the quality maturity-level risk meter. The tool has been applied successfully to local hospitals. Originality/value - The proposed six quality driver scales appear to measure healthcare provider maturity levels on a single quality meter.

  9. Quality-assessment expectations and quality-assessment reality in ...

    African Journals Online (AJOL)

    dissonance between stated and actual quality criteria among a group of lecturers in a particular. 1 For a discussion of quality in .... 6 The feasibility study undertaken by the SU Language Centre and its impact on interpreting at SU will be discussed in detail in a ..... Communication & Cognition 38(1-2): 27-46. Kopczynski, A.

  10. Is There Such a Thing as School Quality Culture? In Search of Conceptual Clarity and Empirical Evidence

    Science.gov (United States)

    Markowitsch, Jörg

    2018-01-01

    Purpose: The purpose of this paper is to clarify the concept of "school quality management culture" in relation to the general notion of "school organizational culture" and to review empirical studies that scrutinised the relation between organisational culture and quality management practices in education and business.…

  11. Empirical sewer water quality model for generating influent data for WWTP modelling

    OpenAIRE

    Langeveld, Jeroen; Van Daal, Petra; Schilperoort, Remy; Nopens, Ingmar; Flameling, Tony; Weijers, Stefan

    2017-01-01

    Wastewater treatment plants (WWTP) typically have a service life of several decades. During this service life, external factors, such as changes in the effluent standards or the loading of the WWTP may change, requiring WWTP performance to be optimized. WWTP modelling is widely accepted as a means to assess and optimize WWTP performance. One of the challenges for WWTP modelling remains the prediction of water quality at the inlet of a WWTP. Recent applications of water quality sensors have re...

  12. Quality assurance in performance assessments

    Energy Technology Data Exchange (ETDEWEB)

    Maul, P.R.; Watkins, B.M.; Salter, P.; Mcleod, R [QuantiSci Ltd, Henley-on-Thames (United Kingdom)

    1999-01-01

    Following publication of the Site-94 report, SKI wishes to review how Quality Assurance (QA) issues could be treated in future work both in undertaking their own Performance Assessment (PA) calculations and in scrutinising documents supplied by SKB (on planning a repository for spent fuels in Sweden). The aim of this report is to identify the key QA issues and to outline the nature and content of a QA plan which would be suitable for SKI, bearing in mind the requirements and recommendations of relevant standards. Emphasis is on issues which are specific to Performance Assessments for deep repositories for radioactive wastes, but consideration is also given to issues which need to be addressed in all large projects. Given the long time over which the performance of a deep repository system must be evaluated, the demonstration that a repository is likely to perform satisfactorily relies on the use of computer-generated model predictions of system performance. This raises particular QA issues which are generally not encountered in other technical areas (for instance, power station operations). The traceability of the arguments used is a key QA issue, as are conceptual model uncertainty, and code verification and validation; these were all included in the consideration of overall uncertainties in the Site-94 project. Additionally, issues which are particularly relevant to SKI include: How QA in a PA fits in with the general QA procedures of the organisation undertaking the work. The relationship between QA as applied by the regulator and the implementor of a repository development programme. Section 2 introduces the discussion of these issues by reviewing the standards and guidance which are available from national and international organisations. This is followed in Section 3 by a review of specific issues which arise from the Site-94 exercise. An outline procedure for managing QA issues in SKI is put forward as a basis for discussion in Section 4. It is hoped that

  13. Quality assurance in performance assessments

    International Nuclear Information System (INIS)

    Maul, P.R.; Watkins, B.M.; Salter, P.; Mcleod, R

    1999-01-01

    Following publication of the Site-94 report, SKI wishes to review how Quality Assurance (QA) issues could be treated in future work both in undertaking their own Performance Assessment (PA) calculations and in scrutinising documents supplied by SKB (on planning a repository for spent fuels in Sweden). The aim of this report is to identify the key QA issues and to outline the nature and content of a QA plan which would be suitable for SKI, bearing in mind the requirements and recommendations of relevant standards. Emphasis is on issues which are specific to Performance Assessments for deep repositories for radioactive wastes, but consideration is also given to issues which need to be addressed in all large projects. Given the long time over which the performance of a deep repository system must be evaluated, the demonstration that a repository is likely to perform satisfactorily relies on the use of computer-generated model predictions of system performance. This raises particular QA issues which are generally not encountered in other technical areas (for instance, power station operations). The traceability of the arguments used is a key QA issue, as are conceptual model uncertainty, and code verification and validation; these were all included in the consideration of overall uncertainties in the Site-94 project. Additionally, issues which are particularly relevant to SKI include: How QA in a PA fits in with the general QA procedures of the organisation undertaking the work. The relationship between QA as applied by the regulator and the implementor of a repository development programme. Section 2 introduces the discussion of these issues by reviewing the standards and guidance which are available from national and international organisations. This is followed in Section 3 by a review of specific issues which arise from the Site-94 exercise. An outline procedure for managing QA issues in SKI is put forward as a basis for discussion in Section 4. It is hoped that

  14. Service Quality of Online Shopping Platforms: A Case-Based Empirical and Analytical Study

    Directory of Open Access Journals (Sweden)

    Tsan-Ming Choi

    2013-01-01

    Full Text Available Customer service is crucially important for online shopping platforms (OSPs such as eBay and Taobao. Based on the well-established service quality instruments and the scenario of the specific case on Taobao, this paper focuses on exploring the service quality of an OSP with an aim of revealing customer perceptions of the service quality associated with the provided functions and investigating their impacts on customer loyalty. By an empirical study, this paper finds that the “fulfillment and responsiveness” function is significantly related to the customer loyalty. Further analytical study is conducted to reveal that the optimal service level on the “fulfillment and responsiveness” function for the risk averse OSP uniquely exists. Moreover, the analytical results prove that (i if the customer loyalty is more positively correlated to the service level, it will lead to a larger optimal service level, and (ii the optimal service level is independent of the profit target, the source of uncertainty, and the risk preference of the OSP.

  15. The Pacific northwest stream quality assessment

    Science.gov (United States)

    Van Metre, Peter C.; Morace, Jennifer L.; Sheibley, Rich W.

    2015-01-01

    In 2015, the U.S. Geological Survey (USGS) National Water-Quality Assessment (NAWQA) program is assessing stream quality in the Pacific Northwest. The goals of the Pacific Northwest Stream Quality Assessment (Pacific Northwest study) are to assess the quality of streams in the region by characterizing multiple water-quality factors that are stressors to aquatic life and to evaluate the relation between these stressors and biological communities. The effects of urbanization and agriculture on stream quality for the Puget Lowlands and Willamette Valley are the focus of this regional study. Findings will provide the public and policymakers with information regarding which human and environmental factors are the most critical in affecting stream quality and, thus, provide insights about possible approaches to protect or improve the health of streams in the region.

  16. Soldier Quality of Life Assessment

    Science.gov (United States)

    2016-09-01

    prioritized many attributes related to creating conditions conducive to quality sleep . This includes bed type (the overall most important attribute...optimal sleep conditions.  Overall, dinner was the most important meal of the day in terms of Soldier preferences for having freshly cooked, non-ration...TECHNICAL REPORT AD ________________ NATICK/TR-16/022 SOLDIER QUALITY OF LIFE

  17. STATISTICS IN SERVICE QUALITY ASSESSMENT

    Directory of Open Access Journals (Sweden)

    Dragana Gardašević

    2012-09-01

    Full Text Available For any quality evaluation in sports, science, education, and so, it is useful to collect data to construct a strategy to improve the quality of services offered to the user. For this purpose, we use statistical software packages for data processing data collected in order to increase customer satisfaction. The principle is demonstrated by the example of the level of student satisfaction ratings Belgrade Polytechnic (as users the quality of institutions (Belgrade Polytechnic. Here, the emphasis on statistical analysis as a tool for quality control in order to improve the same, and not the interpretation of results. Therefore, the above can be used as a model in sport to improve the overall results.

  18. Linking Supply Chain Network Complexity to Interdependence and Risk-Assessment: Scale Development and Empirical Investigation

    Directory of Open Access Journals (Sweden)

    Samyadip Chakraborty

    2015-12-01

    Full Text Available Concepts like supply chain network complexity, interdependence and risk assessment have been prominently discussed directly and indirectly in management literature over past decades and plenty of frameworks and conceptual prescriptive research works have been published contributing towards building the body of knowledge. However previous studies often lacked quantification of the findings. Consequently, the need for suitable scales becomes prominent for measuring those constructs to empirically support the conceptualized relationships. This paper expands the understanding of supply chain network complexity (SCNC and also highlights its implications on interdependence (ID between the actors and risk assessment (RAS in transaction relationships. In doing so, SCNC and RAS are operationalized to understand how SCNC affects interdependence and risk assessment between the actors in the supply chain network. The contribution of this study lies in developing and validating multi-item scales for these constructs and empirically establishing the hypothesized relationships in the Indian context based on firm data collected using survey–based questionnaire. The methodology followed included structural equation modeling. The study findings indicate that SCNC had significant relationship with interdependence, which in turn significantly affected risk assessment. This study carries both academic and managerial implications and provides an empirically supported framework linking network complexity with the two key variables (ID and RAS, playing crucial roles in managerial decision making. This study contributes to the body of knowledge and aims at guiding managers in better understanding transaction relationships.

  19. How do customers evaluate hotel service quality? An empirical study in Tehran hotels

    Directory of Open Access Journals (Sweden)

    Seyedvahid Najafi

    2013-12-01

    Full Text Available The purpose of this study is to investigate the dimensions of hotel service quality, to assess relative importance of them and to evaluate service quality of Tehran hotels in terms of guests’ perspectives. The paper examines the reliability and validity of the designed scale based on SERVQUAL model. A cross-sectional research based on SERVQUAL model conducted on nine hotels in Tehran (n=1080. Several statistical analyses such as EFA, CFA, Linear regression and t-test were applied to analyze the data. Five service quality dimensions were identified and named as “tangibles”, “problem solving”, “service supply”, “empathy” and “security”. Even though our findings confirmed five dimensional SERVQUAL constructs, some dimensions have been identified differing from SERVQUAL scale dimensions. Finding showed that the best overall service quality predictor is “tangibles” followed by “service supply”, “problem solving”, “assurance” and “empathy”.

  20. Visual signal quality assessment quality of experience (QOE)

    CERN Document Server

    Ma, Lin; Lin, Weisi; Ngan, King

    2015-01-01

    This book provides comprehensive coverage of the latest trends/advances in subjective and objective quality evaluation for traditional visual signals, such as 2D images and video, as well as the most recent challenges for the field of multimedia quality assessment and processing, such as mobile video and social media. Readers will learn how to ensure the highest storage/delivery/ transmission quality of visual content (including image, video, graphics, animation, etc.) from the server to the consumer, under resource constraints, such as computation, bandwidth, storage space, battery life, etc.    Provides an overview of quality assessment for traditional visual signals; Covers newly emerged visual signals such as social media, 3D image/video, mobile video, high dynamic range (HDR) images, graphics/animation, etc., which demand better quality of experience (QoE); Helps readers to develop better quality metrics and processing methods for newly emerged visual signals; Enables testing, optimizing, benchmarking...

  1. Poverty and Inequality in Sub-Saharan Africa: Literature Survey and Empirical Assessment

    OpenAIRE

    Delfin Go; Denis Nikitin; Xiongjian Wang; Heng-fu Zou

    2011-01-01

    This paper surveys the literature and assesses the magnitude, persistence, and depth of poverty and inequality in Sub-Saharan Africa using empirical analysis. Our analysis explores linkages between three key facts about development in Sub-Saharan Africa: poor economic growth, poor performance in terms of public health indicators, and resilient high-income inequality. Most of the differential between growth rates in Sub-Saharan Africa and other developing countries can be explained by two meas...

  2. Have food and financial markets integrated? An empirical assessment on aggregate data

    OpenAIRE

    Lehecka, Georg V.

    2013-01-01

    This paper analyzes co-movements and discusses possible market integration between aggregate food and stock markets in the period of 1990 to 2012. Correlations, price return distributions, cointegration, and Granger-causalities are tested in subsamples on monthly FAO Food Price Index and MSCI World Stock Market Index data to better assess why and whether linkages between food and financial markets have increased. Empirical results suggest that while there is only weak indication of greater co...

  3. Evaluation of Empirical and Machine Learning Algorithms for Estimation of Coastal Water Quality Parameters

    Directory of Open Access Journals (Sweden)

    Majid Nazeer

    2017-11-01

    Full Text Available Coastal waters are one of the most vulnerable resources that require effective monitoring programs. One of the key factors for effective coastal monitoring is the use of remote sensing technologies that significantly capture the spatiotemporal variability of coastal waters. Optical properties of coastal waters are strongly linked to components, such as colored dissolved organic matter (CDOM, chlorophyll-a (Chl-a, and suspended solids (SS concentrations, which are essential for the survival of a coastal ecosystem and usually independent of each other. Thus, developing effective remote sensing models to estimate these important water components based on optical properties of coastal waters is mandatory for a successful coastal monitoring program. This study attempted to evaluate the performance of empirical predictive models (EPM and neural networks (NN-based algorithms to estimate Chl-a and SS concentrations, in the coastal area of Hong Kong. Remotely-sensed data over a 13-year period was used to develop regional and local models to estimate Chl-a and SS over the entire Hong Kong waters and for each water class within the study area, respectively. The accuracy of regional models derived from EPM and NN in estimating Chl-a and SS was 83%, 93%, 78%, and 97%, respectively, whereas the accuracy of local models in estimating Chl-a and SS ranged from 60–94% and 81–94%, respectively. Both the regional and local NN models exhibited a higher performance than those models derived from empirical analysis. Thus, this study suggests using machine learning methods (i.e., NN for the more accurate and efficient routine monitoring of coastal water quality parameters (i.e., Chl-a and SS concentrations over the complex coastal area of Hong Kong and other similar coastal environments.

  4. 137Cs applicability to soil erosion assessment: theoretical and empirical model

    International Nuclear Information System (INIS)

    Andrello, Avacir Casanova

    2004-02-01

    The soil erosion processes acceleration and the increase of soil erosion rates due to anthropogenic perturbation in soil-weather-vegetation equilibrium has influenced in the soil quality and environment. So, the possibility to assess the amplitude and severity of soil erosion impact on the productivity and quality of soil is important so local scale as regional and global scale. Several models have been developed to assess the soil erosion so qualitative as quantitatively. 137 Cs, an anthropogenic radionuclide, have been very used to assess the superficial soil erosion process Empirical and theoretical models were developed on the basis of 137 Cs redistribution as indicative of soil movement by erosive process These models incorporate many parameters that can influence in the soil erosion rates quantification by 137 Cs redistribution. Statistical analysis was realized on the models recommended by IAEA to determinate the influence that each parameter generates in results of the soil redistribution. It was verified that the most important parameter is the 137 Cs redistribution, indicating the necessity of a good determination in the 137 Cs inventory values with a minimum deviation associated with these values. After this, it was associated a 10% deviation in the reference value of 137 Cs inventory and the 5% in the 137 Cs inventory of the sample and was determinate the deviation in results of the soil redistribution calculated by models. The results of soil redistribution was compared to verify if there was difference between the models, but there was not difference in the results determinate by models, unless above 70% of 137 Cs loss. Analyzing three native forests and an area of the undisturbed pasture in the Londrina region, can be verified that the 137 Cs spatial variability in local scale was 15%. Comparing the 137 Cs inventory values determinate in the three native forest with the 137 Cs inventory value determinate in the area of undisturbed pasture in the

  5. Perceived Quality of Full HD Video - Subjective Quality Assessment

    Directory of Open Access Journals (Sweden)

    Juraj Bienik

    2016-01-01

    Full Text Available In recent years, an interest in multimedia services has become a global trend and this trend is still rising. The video quality is a very significant part from the bundle of multimedia services, which leads to a requirement for quality assessment in the video domain. Video quality of a streamed video across IP networks is generally influenced by two factors “transmission link imperfection and efficiency of compression standards. This paper deals with subjective video quality assessment and the impact of the compression standards H.264, H.265 and VP9 on perceived video quality of these compression standards. The evaluation is done for four full HD sequences, the difference of scenes is in the content“ distinction is based on Spatial (SI and Temporal (TI Index of test sequences. Finally, experimental results follow up to 30% bitrate reducing of H.265 and VP9 compared with the reference H.264.

  6. EVALUATION OF PERCEIVED QUALITY OF THE WEBSITE OF AN ONLINE BOOKSTORE: AN EMPIRICAL APPLICATION OF THE BARNES AND VIDGEN MODEL

    Directory of Open Access Journals (Sweden)

    Ueliton da Costa Leonidio

    2011-05-01

    Full Text Available This paper’s objective is to evaluate the perceived quality of the Website of an online bookstore using the Barnes and Vidgen Model. Implemented over the Internet, this empirical research collected data on the perceived quality of the Website, used to sell products and online services. The questionnaire used to gather the data was answered by a convenience sample of 213 respondents. The importance of quality attributes and the dimension of perceived quality were investigated. The results indicate that the three dimensions named Reliability, Usability and Information were the most noticeable.

  7. Quality-Enhancing Interventions for People with Profound Intellectual and Multiple Disabilities: A Review of the Empirical Research Literature

    Science.gov (United States)

    Maes, Bea; Lambrechts, Greet; Hostyn, Ine; Petry, Katja

    2007-01-01

    Background: This study provides an overview of empirical research on the effectiveness of quality-enhancing interventions for people with profound intellectual and multiple disabilities (PIMD). Method: Through computerised searches of the PsycINFO and ERIC databases, and using several search criteria specifically relating to the target group and…

  8. Empirical Evaluation Indicators in Thai Higher Education: Theory-Based Multidimensional Learners’ Assessment

    Directory of Open Access Journals (Sweden)

    Dawisa Sritanyarat

    2016-09-01

    Full Text Available This study proposed empirical indicators which can be validated and adopted in higher education institutions to evaluate quality of teaching and learning, and to serve as an evaluation criteria for human resource management and development of higher institutions in Thailand. The main purpose of this study was to develop empirical indicators of a theoretically-based multidimensional learners’ evaluation in Thai higher education adopting the National Institute of Development Administration as a case study. Research method of this study was developed based on Dubin’s Theory Building Model. Units, which are basic building blocks of newly developed concept, were developed qualitatively and quantitatively by triangulating data obtained from the systematic literature review, the qualitative data collection, and the Likert-scale survey. Patterson’s (in Holton and Lowe, 2007 criterion was used to evaluate the conceptual framework. Questionnaire was used as a tool for data collection. Exploratory factor analysis and Cronbach’s alpha analysis were used to analyse the collected data in order to develop empirical indicators.

  9. Welfare Quality assessment protocol for laying hens = Welfare Quality assessment protocol voor leghennen

    NARCIS (Netherlands)

    Niekerk, van T.G.C.M.; Gunnink, H.; Reenen, van C.G.

    2012-01-01

    Results of a study on the Welfare Quality® assessment protocol for laying hens. It reports the development of the integration of welfare assessment as scores per criteria as well as simplification of the Welfare Quality® assessment protocol. Results are given from assessment of 122 farms.

  10. Assessment and treatment of PTSD after a motor vehicle collision: Empirical findings and clinical observations

    Science.gov (United States)

    Beck, J. Gayle; Coffey, Scott F.

    2007-01-01

    Individuals who experience a serious motor vehicle accident (MVA) are at increased risk for psychological problems, particularly Posttraumatic Stress Disorder (PTSD). In this article, we review the literature on PTSD among MVA survivors, with particular attention to available instruments to screen for and assess symptomatology of the disorder. Approaches to the treatment of PTSD in this population are reviewed, separated into interventions designed to prevent PTSD in unselected samples, treatment targeting individuals with Acute Stress Disorder that are designed to prevent subsequent development of PTSD, and therapy for individuals with chronic PTSD. Treatment process issues are discussed, in an effort to integrate empirical findings with clinical observations. The empirical literature suggests several approaches to treatment that have good potential outcomes, although continued work is needed to identify factors that predict treatment response, as well as augment individual-based treatment formats. PMID:18509507

  11. Empirically Derived Dietary Patterns in UK Adults Are Associated with Sociodemographic Characteristics, Lifestyle, and Diet Quality

    Science.gov (United States)

    Cade, Janet; Dawson, Jeremy; Holdsworth, Michelle

    2018-01-01

    The aim of this study was to examine empirical dietary patterns in UK adults and their association with sociodemographic characteristics, lifestyle factors, self-reported nutrient intake, nutrient biomarkers, and the Nutrient-based Diet Quality Score (NDQS) using National Diet and Nutrition Survey data 2008–2012 (n = 2083; mean age 49 years; 43.3% male). Four patterns explained 13.6% of the total variance: ‘Snacks, fast food, fizzy drinks’ (SFFFD), ‘Fruit, vegetables, oily fish’ (FVOF), ‘Meat, potatoes, beer’ (MPB), and ‘Sugary foods, dairy’ (SFD). ‘SFFFD’ was associated positively with: being male; smoking; body mass index (BMI); urinary sodium; intake of non-milk extrinsic sugars (NMES), fat and starch; and negatively with: age; plasma carotenoids; and NDQS. ‘FVOF’ was associated positively with: being non-white; age; income; socioeconomic classification (National Statistics Socio-economic Classifications; NSSEC); plasma carotenoids; intake of non-starch polysaccharides and polyunsaturated fatty acids. It was negatively associated with: being male, smoking, BMI, urinary sodium, intake of saturated fat; and NMES and NDQS. Whilst the patterns explained only 13.6% of the total variance, they were associated with self-reported nutrient intake, biomarkers of nutrient intake, sociodemographic and lifestyle variables, and the NDQS. These findings provide support for dietary patterns analyses as a means of exploring dietary intake in the UK population to inform public health nutrition policy and guidance. PMID:29415478

  12. Empirically Derived Dietary Patterns in UK Adults Are Associated with Sociodemographic Characteristics, Lifestyle, and Diet Quality

    Directory of Open Access Journals (Sweden)

    Katharine Roberts

    2018-02-01

    Full Text Available The aim of this study was to examine empirical dietary patterns in UK adults and their association with sociodemographic characteristics, lifestyle factors, self-reported nutrient intake, nutrient biomarkers, and the Nutrient-based Diet Quality Score (NDQS using National Diet and Nutrition Survey data 2008–2012 (n = 2083; mean age 49 years; 43.3% male. Four patterns explained 13.6% of the total variance: ‘Snacks, fast food, fizzy drinks’ (SFFFD, ‘Fruit, vegetables, oily fish’ (FVOF, ‘Meat, potatoes, beer’ (MPB, and ‘Sugary foods, dairy’ (SFD. ‘SFFFD’ was associated positively with: being male; smoking; body mass index (BMI; urinary sodium; intake of non-milk extrinsic sugars (NMES, fat and starch; and negatively with: age; plasma carotenoids; and NDQS. ‘FVOF’ was associated positively with: being non-white; age; income; socioeconomic classification (National Statistics Socio-economic Classifications; NSSEC; plasma carotenoids; intake of non-starch polysaccharides and polyunsaturated fatty acids. It was negatively associated with: being male, smoking, BMI, urinary sodium, intake of saturated fat; and NMES and NDQS. Whilst the patterns explained only 13.6% of the total variance, they were associated with self-reported nutrient intake, biomarkers of nutrient intake, sociodemographic and lifestyle variables, and the NDQS. These findings provide support for dietary patterns analyses as a means of exploring dietary intake in the UK population to inform public health nutrition policy and guidance.

  13. Empirically derived dietary patterns and health-related quality of life in the SUN project.

    Directory of Open Access Journals (Sweden)

    Cristina Ruano

    Full Text Available The analysis of dietary patterns has become a valuable tool to examine diet-disease relationships but little is known about their effects on quality of life. Our aim was to ascertain the association between major dietary patterns and mental and physical quality of life after 4 years of follow-up.This analysis included 11,128 participants from the "Seguimiento Universidad de Navarra" (SUN cohort. Dietary habits were assessed using a validated food-frequency questionnaire. Factor analysis was used to derive dietary patterns. Quality of life was measured with the validated Spanish version of the SF-36 Health Survey.Two major dietary patterns were identified, the 'Western' dietary pattern (rich in red meats, processed pastries and fast-food and the "Mediterranean" dietary pattern (high in fruits, vegetables and olive oil. After controlling for confounders, the Western dietary pattern was associated with quality of life in all domains. The magnitude of these differences between the subjects in the highest (quintile 5 and the lowest quintile of adherence to the Western pattern ranged from -0.8 (for mental health to -3.5 (for vitality. On the contrary, the Mediterranean dietary pattern was associated with better quality of life domains: differences ranged from +1.3 (for physical functioning to +3.4 (for vitality when comparing extreme quintiles of adherence. Additional sensitivity analyses did not change the reported differences.Whereas baseline adherence to a Western dietary pattern was inversely associated with self-perceived quality of life after 4 years of follow-up, baseline adherence to a Mediterranean dietary pattern was directly associated with better scores in quality of life four years later in the SUN Project.

  14. Individual Breast Cancer risk assessment in Underserved Populations: Integrating empirical Bioethics and Health Disparities Research

    Science.gov (United States)

    Anderson, Emily E.; Hoskins, Kent

    2013-01-01

    Research suggests that individual breast cancer risk assessment may improve adherence to recommended screening and prevention guidelines, thereby decreasing morbidity and mortality. Further research on the use of risk assessment models in underserved minority populations is critical to informing national public health efforts to eliminate breast cancer disparities. However, implementing individual breast cancer risk assessment in underserved patient populations raises particular ethical issues that require further examination. After reviewing these issues, we will discuss how empirical bioethics research can be integrated with health disparities research to inform the translation of research findings. Our in-progress National Cancer Institute (NCI) funded study, How Do Underserved Minority Women Think About Breast Cancer?, conducted in the context of a larger study on individual breast cancer risk assessment, is presented as a model. PMID:23124498

  15. Assessing Participation in Secondary Education Quality Enhancement

    African Journals Online (AJOL)

    Assessing Participation in Secondary Education Quality Enhancement: Teachers, Parents and Communities in Cross River State. ... ailing economy, low moral values and philosophy of the end justifies the means were reasons for low parents and communities involvement in secondary education-quality improvement.

  16. Water quality assessment and hydrochemical characteristics of ...

    Indian Academy of Sciences (India)

    The present study is aimed at assessing the water quality and discussing the hydrochemical characteristics and seasonal ... Keywords. Groundwater; metal; water quality; hydrochemical characteristics; seasonal variation; principal components analysis. J. Earth Syst. Sci. 123, No. ... Pearl River, south China. It belongs to the ...

  17. Quality assessment of differently treated mackerel ( Scomber ...

    African Journals Online (AJOL)

    The different preservation techniques were therefore observed to have varying effects on the keeping quality of mackerel (Scomber scombrus), with brining and salting being the most preferred. Keywords: mackerel, spoilage, brining, marinade, organoleptic assessment, keeping quality. Animal Production Research ...

  18. Supporting visual quality assessment with machine learning

    NARCIS (Netherlands)

    Gastaldo, P.; Zunino, R.; Redi, J.

    2013-01-01

    Objective metrics for visual quality assessment often base their reliability on the explicit modeling of the highly non-linear behavior of human perception; as a result, they may be complex and computationally expensive. Conversely, machine learning (ML) paradigms allow to tackle the quality

  19. Debris flow susceptibility assessment based on an empirical approach in the central region of South Korea

    Science.gov (United States)

    Kang, Sinhang; Lee, Seung-Rae

    2018-05-01

    Many debris flow spreading analyses have been conducted during recent decades to prevent damage from debris flows. An empirical approach that has been used in various studies on debris flow spreading has advantages such as simple data acquisition and good applicability for large areas. In this study, a GIS-based empirical model that was developed at the University of Lausanne (Switzerland) is used to assess the debris flow susceptibility. Study sites are classified based on the types of soil texture or geological conditions, which can indirectly consider geotechnical or rheological properties, to supplement the weaknesses of Flow-R which neglects local controlling factors. The mean travel angle for each classification is calculated from a debris flow inventory map. The debris flow susceptibility is assessed based on changes in the flow-direction algorithm, an inertial function with a 5-m DEM resolution. A simplified friction-limited model was applied to the runout distance analysis by using the appropriate travel angle for the corresponding classification with a velocity limit of 28 m/s. The most appropriate algorithm combinations that derived the highest average of efficiency and sensitivity for each classification are finally determined by applying a confusion matrix with the efficiency and the sensitivity to the results of the susceptibility assessment. The proposed schemes can be useful for debris flow susceptibility assessment in both the study area and the central region of Korea, which has similar environmental factors such as geological conditions, topography and rainfall characteristics to the study area.

  20. Quality Assessment in the Primary care

    Directory of Open Access Journals (Sweden)

    Muharrem Ak

    2013-04-01

    Full Text Available -Quality Assessment in the Primary care Dear Editor; I have read the article titled as “Implementation of Rogi Kalyan Samiti (RKS at Primary Health Centre Durvesh” with great interest. Shrivastava et all concluded that assessment mechanism for the achievement of objectives for the suggested RKS model was not successful (1. Hereby I would like to emphasize the importance of quality assessment (QA especially in the era of newly established primary care implementations in our country. Promotion of quality has been fundamental part of primary care health services. Nevertheless variations in quality of care exist even in the developed countries. Accomplishment of quality in the primary care has some barriers like administration and directorial factors, absence of evidence-based medicine practice lack of continuous medical education. Quality of health care is no doubt multifaceted model that covers all components of health structures and processes of care. Quality in the primary care set up includes patient physician relationship, immunization, maternal, adolescent, adult and geriatric health care, referral, non-communicable disease management and prescribing (2. Most countries are recently beginning the implementation of quality assessments in all walks of healthcare. Organizations like European society for quality and safety in family practice (EQuiP endeavor to accomplish quality by collaboration. There are reported developments and experiments related to the methodology, processes and outcomes of quality assessments of health care. Quality assessments will not only contribute the accomplishment of the program / project but also detect the areas where obstacles also exist. In order to speed up the adoption of QA and to circumvent the occurrence of mistakes, health policy makers and family physicians from different parts of the world should share their experiences. Consensus on quality in preventive medicine implementations can help to yield

  1. Quality of Experience Assessment of Video Quality in Social Clouds

    Directory of Open Access Journals (Sweden)

    Asif Ali Laghari

    2017-01-01

    Full Text Available Video sharing on social clouds is popular among the users around the world. High-Definition (HD videos have big file size so the storing in cloud storage and streaming of videos with high quality from cloud to the client are a big problem for service providers. Social clouds compress the videos to save storage and stream over slow networks to provide quality of service (QoS. Compression of video decreases the quality compared to original video and parameters are changed during the online play as well as after download. Degradation of video quality due to compression decreases the quality of experience (QoE level of end users. To assess the QoE of video compression, we conducted subjective (QoE experiments by uploading, sharing, and playing videos from social clouds. Three popular social clouds, Facebook, Tumblr, and Twitter, were selected to upload and play videos online for users. The QoE was recorded by using questionnaire given to users to provide their experience about the video quality they perceive. Results show that Facebook and Twitter compressed HD videos more as compared to other clouds. However, Facebook gives a better quality of compressed videos compared to Twitter. Therefore, users assigned low ratings for Twitter for online video quality compared to Tumblr that provided high-quality online play of videos with less compression.

  2. Methods and dimensions of electronic health record data quality assessment: enabling reuse for clinical research.

    Science.gov (United States)

    Weiskopf, Nicole Gray; Weng, Chunhua

    2013-01-01

    To review the methods and dimensions of data quality assessment in the context of electronic health record (EHR) data reuse for research. A review of the clinical research literature discussing data quality assessment methodology for EHR data was performed. Using an iterative process, the aspects of data quality being measured were abstracted and categorized, as well as the methods of assessment used. Five dimensions of data quality were identified, which are completeness, correctness, concordance, plausibility, and currency, and seven broad categories of data quality assessment methods: comparison with gold standards, data element agreement, data source agreement, distribution comparison, validity checks, log review, and element presence. Examination of the methods by which clinical researchers have investigated the quality and suitability of EHR data for research shows that there are fundamental features of data quality, which may be difficult to measure, as well as proxy dimensions. Researchers interested in the reuse of EHR data for clinical research are recommended to consider the adoption of a consistent taxonomy of EHR data quality, to remain aware of the task-dependence of data quality, to integrate work on data quality assessment from other fields, and to adopt systematic, empirically driven, statistically based methods of data quality assessment. There is currently little consistency or potential generalizability in the methods used to assess EHR data quality. If the reuse of EHR data for clinical research is to become accepted, researchers should adopt validated, systematic methods of EHR data quality assessment.

  3. ASSESSMENT OF QUALITY OF INNOVATIVE TECHNOLOGIES

    Directory of Open Access Journals (Sweden)

    Larisa Alexejevna Ismagilova

    2016-12-01

    Full Text Available We consider the topical issue of implementation of innovative technologies in the aircraft engine building industry. In this industry, products with high reliability requirements are developed and mass-produced. These products combine the latest achievements of science and technology. To make a decision on implementation of innovative technologies, a comprehensive assessment is carried out. It affects the efficiency of the innovations realization. In connection with this, the assessment of quality of innovative technologies is a key aspect in the selection of technological processes for their implementation. Problems concerning assessment of the quality of new technologies and processes of production are considered in the suggested method with respect to new positions. The developed method of assessing the quality of innovative technologies stands out for formed system of the qualimetric characteristics ensuring the effectiveness, efficiency, adaptability of innovative technologies and processes. The feature of suggested system of assessment is that it is based on principles of matching and grouping of quality indicators of innovative technologies and the characteristics of technological processes. The indicators are assessed from the standpoint of feasibility, technologies competiveness and commercial demand of products. In this paper, we discuss the example of implementing the approach of assessing the quality of the innovative technology of high-tech products such as turbine aircraft engine.

  4. Elementary Students as Active Agents in Their Learning: An Empirical Study of the Connections between Assessment Practices and Student Metacognition

    Science.gov (United States)

    Braund, Heather; DeLuca, Christopher

    2018-01-01

    This study explored how elementary teachers leveraged and structured student-involved formative assessment to promote metacognition and self-regulation. Research has suggested a connection between formative assessment practices (e.g., self-assessment and peer-assessment) and metacognition. However, this connection has limited empirical support,…

  5. The Influence of Quality on E-Commerce Success: An Empirical Application of the Delone and Mclean IS Success Model

    OpenAIRE

    Ultan Sharkey; Murray Scott; Thomas Acton

    2010-01-01

    This research addresses difficulties in measuring e-commerce success by implementing the DeLone and McLean (D&M) model of IS success (1992, 2003) in an e-commerce environment. This research considers the influence of quality on e-commerce success by measuring the information quality and system quality attributes of an e-commerce system and the intention to use, user satisfaction and intention to transact from a sample of respondents. This research provides an empirical e-commerce application ...

  6. Time-varying disaster risk models: An empirical assessment of the Rietz-Barro hypothesis

    DEFF Research Database (Denmark)

    Irarrazabal, Alfonso; Parra-Alvarez, Juan Carlos

    This paper revisits the fit of disaster risk models where a representative agent has recursive preferences and the probability of a macroeconomic disaster changes over time. We calibrate the model as in Wachter (2013) and perform two sets of tests to assess the empirical performance of the model ...... and hence to reduce the Sharpe Ratio, a lower elasticity of substitution generates a more reasonable level for the equity risk premium and for the volatility of the government bond returns without compromising the ability of the price-dividend ratio to predict excess returns....

  7. Quality of Student–Faculty Interaction at University: An Empirical Approach of Gender and ICT Usage

    Directory of Open Access Journals (Sweden)

    Ana Criado-Gomis

    2013-02-01

    Full Text Available Purpose—This paper studies the relationship of gender and ICT usage as significant variables in the formation of perceived value, satisfaction and loyalty to educational institutions, and in the quality of the student-faculty interaction to discuss how these variables determine the bond between students and the University, in order to improve this interaction. Design/methodology/approach—The empirical research designed to test the proposed model was conducted in two Spanish universities (a random sample of 1000 graduates—500 from each university—from two academic years, all areas of knowledge and proportional for men/women. They were individually interviewed by personnel of an external market research institute, using CATI (Computer Assisted Telephone Interview. For the measurement of the latent variables in the proposed model, we use an 11-point Likert scale (adapted to the particular context of the present study by means of several in-depth interviews with students and academics. ICT usage—classified in communication, author and administration tools, supporting the teaching, research and administrative management processes of the educational service—was measured with a scale of 7 items, which cover the main ICT used by students during their learning process and checked by an expert panel. These items were also examined more rigorously to validate their psychometric properties with the estimation of a confirmatory factor analysis via the maximum-likelihood method of structural equation modeling with LISREL 8.5. The evaluation of discriminant validity was testing by the AVE for each construct, which exhibited all of the constructs, discriminant validity in the model. Moreover, it was also verified through analysis of the confidence interval for the correlation coefficient between ICT usage and quality of interaction, and performing a model with construct correlations constrained to 1.00 was compared to an unconstrained model

  8. Quality of Student–Faculty Interaction at University: An Empirical Approach of Gender and ICT Usage

    Directory of Open Access Journals (Sweden)

    M. Angeles Iniesta-Bonillo

    2012-12-01

    Full Text Available Purpose—This paper studies the relationship of gender and ICT usage as significant variables in the formation of perceived value, satisfaction and loyalty to educational institutions, and in the quality of the student-faculty interaction to discuss how these variables determine the bond between students and the University, in order to improve this interaction.Design/methodology/approach—The empirical research designed to test the proposed model was conducted in two Spanish universities (a random sample of 1000 graduates—500 from each university—from two academic years, all areas of knowledge and proportional for men/women. They were individually interviewed by personnel of an external market research institute, using CATI (Computer Assisted Telephone Interview.For the measurement of the latent variables in the proposed model, we use an 11-point Likert scale (adapted to the particular context of the present study by means of several in-depth interviews with students and academics. ICT usage—classified in communication, author and administration tools, supporting the teaching, research and administrative management processes of the educational service—was measured with a scale of 7 items, which cover the main ICT used by students during their learning process and checked by an expert panel. These items were also examined more rigorously to validate their psychometric properties with the estimation of a confirmatory factor analysis via the maximum-likelihood method of structural equation modeling with LISREL 8.5.The evaluation of discriminant validity was testing by the AVE for each construct, which exhibited all of the constructs, discriminant validity in the model. Moreover, it was also verified through analysis of the confidence interval for the correlation coefficient between ICT usage and quality of interaction, and performing a model with construct correlations constrained to 1.00 was compared to an unconstrained model

  9. Assessing product image quality for online shopping

    Science.gov (United States)

    Goswami, Anjan; Chung, Sung H.; Chittar, Naren; Islam, Atiq

    2012-01-01

    Assessing product-image quality is important in the context of online shopping. A high quality image that conveys more information about a product can boost the buyer's confidence and can get more attention. However, the notion of image quality for product-images is not the same as that in other domains. The perception of quality of product-images depends not only on various photographic quality features but also on various high level features such as clarity of the foreground or goodness of the background etc. In this paper, we define a notion of product-image quality based on various such features. We conduct a crowd-sourced experiment to collect user judgments on thousands of eBay's images. We formulate a multi-class classification problem for modeling image quality by classifying images into good, fair and poor quality based on the guided perceptual notions from the judges. We also conduct experiments with regression using average crowd-sourced human judgments as target. We compute a pseudo-regression score with expected average of predicted classes and also compute a score from the regression technique. We design many experiments with various sampling and voting schemes with crowd-sourced data and construct various experimental image quality models. Most of our models have reasonable accuracies (greater or equal to 70%) on test data set. We observe that our computed image quality score has a high (0.66) rank correlation with average votes from the crowd sourced human judgments.

  10. Development of a quality-assessment tool for experimental bruxism studies: reliability and validity

    NARCIS (Netherlands)

    Dawson, A.; Raphael, K.G.; Glaros, A.; Axelsson, S.; Arima, T.; Ernberg, M.; Farella, M.; Lobbezoo, F.; Manfredini, D.; Michelotti, A.; Svensson, P.; List, T.

    2013-01-01

    AIMS: To combine empirical evidence and expert opinion in a formal consensus method in order to develop a quality-assessment tool for experimental bruxism studies in systematic reviews. METHODS: Tool development comprised five steps: (1) preliminary decisions, (2) item generation, (3) face-validity

  11. Assessment of empirical potential for MOX nuclear fuels and thermomechanical properties

    Science.gov (United States)

    Balboa, Hector; Van Brutzel, Laurent; Chartier, Alain; Le Bouar, Yann

    2017-11-01

    We assess five empirical interatomic potentials in the approximation of rigid ions and pair interactions for the (U1-y,Puy)O solid solution. The assessment compares available experimental data and Fink's recommendation with simulations on: the structural, thermodynamics, and mechanical properties over the full range of plutonium composition, from pure UO2 to pure PuO2 and for temperatures ranging from 300 K to the melting point. The best results are obtained by potentials referred as Cooper and Potashnikov potentials. The first one reproduces more accurately recommendations for the thermodynamics and mechanical properties exhibiting ductile-like behaviour during crack propagation, while the second one gives brittle behaviour at low temperature.

  12. Assessing Accrual Accounting Reform in Greek Public Hospitals: An Empirical Investigation

    Directory of Open Access Journals (Sweden)

    Dimitrios Vasiliou

    2011-03-01

    Full Text Available During the last decades, several countries worldwide have introduced financial management reforms, as an important part of the New Public Management (NPM initiative at one or more levels of government sector, by either replacing or transforming their traditional budgetary cash accounting systems towards a business-like accrual accounting concept. Following the example of this upcoming managerial trend, the Greek government introduced in 2003 the accrual basis accounting into public hospitals, as the hospital sector is one of the areas where NPM reforms have been introduced in search of higher efficiency, effectiveness and economy in service production.The purpose of this paper is twofold. The first goal is to provide an overview of the government sector reform initiatives in Greece and to present empirical evidence regarding the adoption level of the accrual basis accounting standards in the Greek public Health sector. The second goal of the research is to investigate the impact of a range of potentially contingent factors on hospitals compliance with the accrual financial and cost accounting reform.The present analysis is based on the results of an empirical survey that took place during 2009. For the purposes of this survey, a structured questionnaire was prepared and sent to the Chief Financial Officers (CFOs of 132 Greek public hospitals. In particular, alinear regression model analysis was used to examine the cross-sectional differences on a number of explanatory and implementation factors of the accounting reform adoption level.The empirical evidence reveals that the level of accrual and especially cost accounting adoption in Greek public hospitals is realized only to a limited extent. In particular, results show that the level of reform adoption is positively related to IT quality, reform related training, education level of accounting staff, and professional consultants’ support. However, no significant relationship was found between

  13. Decision-oriented environmental assessment: An empirical study of its theory and methods

    International Nuclear Information System (INIS)

    Pischke, Frederik; Cashmore, Matthew

    2006-01-01

    The potential advantages of a decision-oriented theory of environmental assessment have long been recognised, but it is only in recent years that this topic has received concerted attention. This research advanced contemporary debate on environmental assessment through an empirically-informed evaluation of strategic theoretical and methodological issues associated with the practical application of decision-oriented theory. This was undertaken by critically analysing the decision-oriented Environmental Impact Assessment system of the German Development Cooperation (a bilateral development assistance agency) using a modified version of a recent conceptual and methodological development, Analytical Strategic Environmental Assessment. The results indicate that some aspects of decision-oriented theory offer considerable potential for environmental assessment process management, and should be employed routinely. Yet uncertainty remains about whether certain core concepts, notably the detailed a priori description of decision processes, can be achieved in practice. The analysis also indicates that there is considerably more common ground in many contemporary debates about environmental assessment than the literature, which has tended towards polarisation suggests. The significance of this research is that it recognises and highlights the contribution of decision-oriented theory to refocusing attention on the substantive intent of this globally significant policy tool

  14. Image Quality Assessment via Quality-aware Group Sparse Coding

    Directory of Open Access Journals (Sweden)

    Minglei Tong

    2014-12-01

    Full Text Available Image quality assessment has been attracting growing attention at an accelerated pace over the past decade, in the fields of image processing, vision and machine learning. In particular, general purpose blind image quality assessment is technically challenging and lots of state-of-the-art approaches have been developed to solve this problem, most under the supervised learning framework where the human scored samples are needed for training a regression model. In this paper, we propose an unsupervised learning approach that work without the human label. In the off-line stage, our method trains a dictionary covering different levels of image quality patch atoms across the training samples without knowing the human score, where each atom is associated with a quality score induced from the reference image; at the on-line stage, given each image patch, our method performs group sparse coding to encode the sample, such that the sample quality can be estimated from the few labeled atoms whose encoding coefficients are nonzero. Experimental results on the public dataset show the promising performance of our approach and future research direction is also discussed.

  15. Quality Management Plan for the Environmental Assessment and Innovation Division

    Science.gov (United States)

    Quality management plan (QMP) which identifies the mission, roles, responsibilities of personnel with regard to quality assurance and quality management for the environmental assessment and innovation division.

  16. Assessment Quality in Tertiary Education: An Integrative Literature Review

    OpenAIRE

    Gerritsen-van Leeuwenkamp, Karin; Joosten-ten Brinke, Desirée; Kester, Liesbeth

    2018-01-01

    In tertiary education, inferior assessment quality is a problem that has serious consequences for students, teachers, government, and society. A lack of a clear and overarching conceptualization of assessment quality can cause difficulties in guaranteeing assessment quality in practice. Thus, the aim of this study is to conceptualize assessment quality in tertiary education by providing an overview of the assessment quality criteria, their influences, the evaluation of the assessment quality ...

  17. Measuring hospital service quality and its influence on patient satisfaction: An empirical study using structural equation modeling

    OpenAIRE

    Nasim Kazemi; Parisa Ehsani; Farshid Abdi; Mohammad Kazem Bighami

    2013-01-01

    This paper presents an empirical investigation to measure different dimensions of hospital service quality (HSQ) by gap analysis and patient satisfaction (PS). It also attempts to measure patients’ satisfaction with three dimensions extracted from exploratory factor analysis (EFA) by Principle component analysis method and conformity factor analysis (CFA). In addition, the study analyzes relationship between HSQ and PS in the context of Iranian hospital services, using structural equation mod...

  18. Software quality assessment for health care systems.

    Science.gov (United States)

    Braccini, G; Fabbrini, F; Fusani, M

    1997-01-01

    The problem of defining a quality model to be used in the evaluation of the software components of a Health Care System (HCS) is addressed. The model, based on the ISO/IEC 9126 standard, has been interpreted to fit the requirements of some classes of applications representative of Health Care Systems, on the basis of the experience gained both in the field of medical Informatics and assessment of software products. The values resulting from weighing the quality characteristics according to their criticality outline a set of quality profiles that can be used both for evaluation and certification.

  19. The influence of system quality characteristics on health care providers' performance: Empirical evidence from Malaysia.

    Science.gov (United States)

    Mohd Salleh, Mohd Idzwan; Zakaria, Nasriah; Abdullah, Rosni

    The Ministry of Health Malaysia initiated the total hospital information system (THIS) as the first national electronic health record system for use in selected public hospitals across the country. Since its implementation 15 years ago, there has been the critical requirement for a systematic evaluation to assess its effectiveness in coping with the current system, task complexity, and rapid technological changes. The study aims to assess system quality factors to predict the performance of electronic health in a single public hospital in Malaysia. Non-probability sampling was employed for data collection among selected providers in a single hospital for two months. Data cleaning and bias checking were performed before final analysis in partial least squares-structural equation modeling. Convergent and discriminant validity assessments were satisfied the required criterions in the reflective measurement model. The structural model output revealed that the proposed adequate infrastructure, system interoperability, security control, and system compatibility were the significant predictors, where system compatibility became the most critical characteristic to influence an individual health care provider's performance. The previous DeLone and McLean information system success models should be extended to incorporate these technological factors in the medical system research domain to examine the effectiveness of modern electronic health record systems. In this study, care providers' performance was expected when the system usage fits with patients' needs that eventually increased their productivity. Copyright © 2016 King Saud Bin Abdulaziz University for Health Sciences. Published by Elsevier Ltd. All rights reserved.

  20. A three-model comparison of the relationship between quality, satisfaction and loyalty: an empirical study of the Chinese healthcare system.

    Science.gov (United States)

    Lei, Ping; Jolibert, Alain

    2012-11-30

    Previous research has addressed the relationship between customer satisfaction, perceived quality and customer loyalty intentions in consumer markets. In this study, we test and compare three theoretical models of the quality-satisfaction-loyalty relationship in the Chinese healthcare system. This research focuses on hospital patients as participants in the process of healthcare procurement. Empirical data were obtained from six Chinese public hospitals in Shanghai. A total of 630 questionnaires were collected in two studies. Study 1 tested the research instruments, and Study 2 tested the three models. Confirmatory factor analysis was used to assess the scales' construct validity by testing convergent and discriminant validity. A structural equation model (SEM) specified the distinctions between each construct. A comparison of the three theoretical models was conducted via AMOS analysis. The results of the SEM demonstrate that quality and satisfaction are distinct concepts and that the first model (satisfaction mediates quality and loyalty) is the most appropriate one in the context of the Chinese healthcare environment. In this study, we test and compare three theoretical models of the quality-satisfaction-loyalty relationship in the Chinese healthcare system. Findings show that perceived quality improvement does not lead directly to customer loyalty. The strategy of using quality improvement to maintain patient loyalty depends on the level of patient satisfaction. This implies that the measurement of patient experiences should include topics of importance for patients' satisfaction with health care services.

  1. Body surface assessment with 3D laser-based anthropometry: reliability, validation, and improvement of empirical surface formulae.

    Science.gov (United States)

    Kuehnapfel, Andreas; Ahnert, Peter; Loeffler, Markus; Scholz, Markus

    2017-02-01

    Body surface area is a physiological quantity relevant for many medical applications. In clinical practice, it is determined by empirical formulae. 3D laser-based anthropometry provides an easy and effective way to measure body surface area but is not ubiquitously available. We used data from laser-based anthropometry from a population-based study to assess validity of published and commonly used empirical formulae. We performed a large population-based study on adults collecting classical anthropometric measurements and 3D body surface assessments (N = 1435). We determined reliability of the 3D body surface assessment and validity of 18 different empirical formulae proposed in the literature. The performance of these formulae is studied in subsets of sex and BMI. Finally, improvements of parameter settings of formulae and adjustments for sex and BMI were considered. 3D body surface measurements show excellent intra- and inter-rater reliability of 0.998 (overall concordance correlation coefficient, OCCC was used as measure of agreement). Empirical formulae of Fujimoto and Watanabe, Shuter and Aslani and Sendroy and Cecchini performed best with excellent concordance with OCCC > 0.949 even in subgroups of sex and BMI. Re-parametrization of formulae and adjustment for sex and BMI slightly improved results. In adults, 3D laser-based body surface assessment is a reliable alternative to estimation by empirical formulae. However, there are empirical formulae showing excellent results even in subgroups of sex and BMI with only little room for improvement.

  2. Data, Information, Knowledge, Wisdom (DIKW: A Semiotic Theoretical and Empirical Exploration of the Hierarchy and its Quality Dimension

    Directory of Open Access Journals (Sweden)

    Sasa Baskarada

    2013-03-01

    Full Text Available What exactly is the difference between data and information? What is the difference between data quality and information quality; is there any difference between the two? And, what are knowledge and wisdom? Are there such things as knowledge quality and wisdom quality? As these primitives are the most basic axioms of information systems research, it is somewhat surprising that consensus on exact definitions seems to be lacking. This paper presents a theoretical and empirical exploration of the sometimes directly quoted, and often implied Data, Information, Knowledge, Wisdom (DIKW hierarchy and its quality dimension. We first review relevant literature from a range of perspectives and develop and contextualise a theoretical DIKW framework through semiotics. The literature review identifies definitional commonalities and divergences from a scholarly perspective; the theoretical discussion contextualises the terms and their relationships within a semiotic framework and proposes relevant definitions grounded in that framework. Next, rooted in Wittgenstein’s ordinary language philosophy, we analyse 20 online news articles for their uses of the terms and present the results of an online focus group discussion comprising 16 information systems experts. The empirical exploration identifies a range of definitional ambiguities from a practical perspective.

  3. An Empirical Bayes Framework for Assessing Changes in the Hydrological Cycle

    Science.gov (United States)

    Cheng, L.; AghaKouchak, A.

    2014-12-01

    Greenhouse gases in the atmosphere have been increasing since the industrial revolution, leading to the warming of the Earth through an increase in downwelling infrared radiation. Warming of the atmosphere increases its water holding capacity and could intensify the hydrological cycle. Several methods have been developed for evaluating changes in climatic variables. On the other hand, numerous indices have been developed for monitoring changes in climatic variables. Most change detection methods, indices, and trend studies focus on changes in one variable at the time. However, hydrologic variables are dependent, and a change in one variable can alter extreme and non-extreme values of other variables. In this study, a new approach for modeling multivariate extreme values through a conditional distribution framework using the empirical Bayes approach is proposed. This study highlights the value of empirical Bayes conditional extreme value analysis as a tool for simulating and assessing conditional extremes (e.g., changes in the distribution of precipitation conditioned on extreme temperature). The model has been applied to several locations across the world. This presentation will summarize the findings on changes in the hydrological cycle over the United States and Australia.

  4. Assessment of texture stationarity using the asymptotic behavior of the empirical mean and variance.

    Science.gov (United States)

    Blanc, Rémy; Da Costa, Jean-Pierre; Stitou, Youssef; Baylou, Pierre; Germain, Christian

    2008-09-01

    Given textured images considered as realizations of 2-D stochastic processes, a framework is proposed to evaluate the stationarity of their mean and variance. Existing strategies focus on the asymptotic behavior of the empirical mean and variance (respectively EM and EV), known for some types of nondeterministic processes. In this paper, the theoretical asymptotic behaviors of the EM and EV are studied for large classes of second-order stationary ergodic processes, in the sense of the Wold decomposition scheme, including harmonic and evanescent processes. Minimal rates of convergence for the EM and the EV are derived for these processes; they are used as criteria for assessing the stationarity of textures. The experimental estimation of the rate of convergence is achieved using a nonparametric block sub-sampling method. Our framework is evaluated on synthetic processes with stationary or nonstationary mean and variance and on real textures. It is shown that anomalies in the asymptotic behavior of the empirical estimators allow detecting nonstationarities of the mean and variance of the processes in an objective way.

  5. A balanced scorecard approach in assessing IT value in healthcare sector: an empirical examination.

    Science.gov (United States)

    Wu, Ing-Long; Kuo, Yi-Zu

    2012-12-01

    Healthcare sector indicates human-based and knowledge-intensive property. Massive IT investments are necessary to maintain competitiveness in this sector. The justification of IT investments is the major concern of senior management. Empirical studies examining IT value have found inconclusive results with little or no improvement in productivity. Little research has been conducted in healthcare sector. The balanced scorecard (BSC) strikes a balance between financial and non-financial measure and has been applied in evaluating organization-based performance. Moreover, healthcare organizations often consider their performance goal at customer satisfaction in addition to financial performance. This research thus proposed a new hierarchical structure for the BSC with placing both finance and customer at the top, internal process at the next, and learning and growth at the bottom. Empirical examination has found the importance of the new BSC structure in assessing IT investments. Learning and growth plays the initial driver for reaching both customer and financial performance through the mediator of internal process. This can provide deep insight into effectively managing IT resources in the hospitals.

  6. Soil quality assessment under emerging regulatory requirements.

    Science.gov (United States)

    Bone, James; Head, Martin; Barraclough, Declan; Archer, Michael; Scheib, Catherine; Flight, Dee; Voulvoulis, Nikolaos

    2010-08-01

    New and emerging policies that aim to set standards for protection and sustainable use of soil are likely to require identification of geographical risk/priority areas. Soil degradation can be seen as the change or disturbance in soil quality and it is therefore crucial that soil and soil quality are well understood to protect soils and to meet legislative requirements. To increase this understanding a review of the soil quality definition evaluated its development, with a formal scientific approach to assessment beginning in the 1970s, followed by a period of discussion and refinement. A number of reservations about soil quality assessment expressed in the literature are summarised. Taking concerns into account, a definition of soil quality incorporating soil's ability to meet multifunctional requirements, to provide ecosystem services, and the potential for soils to affect other environmental media is described. Assessment using this definition requires a large number of soil function dependent indicators that can be expensive, laborious, prone to error, and problematic in comparison. Findings demonstrate the need for a method that is not function dependent, but uses a number of cross-functional indicators instead. This method to systematically prioritise areas where detailed investigation is required, using a ranking based against a desired level of action, could be relatively quick, easy and cost effective. As such this has potential to fill in gaps and compliment existing monitoring programs and assist in development and implementation of current and future soil protection legislation. Copyright 2010 Elsevier Ltd. All rights reserved.

  7. Development of Instruments to Assess Shame and Guilt in Adolescents: Empirical Differences Between the Constructs

    Directory of Open Access Journals (Sweden)

    Lorena Maria Laskoski

    2013-05-01

    Full Text Available Shame and guilt are terms easily mixed in everyday life and often used as synonyms. Although they are words of similar use, they represent theoretically different moral emotions. The aims of this study were to develop and validate instruments to assess shame and guilt and to test the empirical independence of the constructs. Five hundred and eighty high school students from three Brazilian states participated in this study, 55% of them female, with an average age of 16.0 years. The participants answered a questionnaire containing socio demographic questions and scales designed for this study in order to assess shame and guilt. The scales developed gave appropriate evidence of validity and reliability. A single factor was extracted to assess shame and two factors to assess guilt (recognition of mistake and regret. The constructs revealed to be correlated, but independent. It is considered that there is sufficient evidence to affirm that shame and guilt are emotions with distinctive peculiarities and can be measured using the instruments developed in this research.

  8. Quality assessment of pacemaker implantations in Denmark

    DEFF Research Database (Denmark)

    Møller, M; Arnsbo, P; Asklund, Mogens

    2002-01-01

    AIMS: Quality assessment of therapeutic procedures is essential to insure a cost-effective health care system. Pacemaker implantation is a common procedure with more than 500,000 implantations world-wide per year, but the general complication rate is not well described. We studied procedure relat...

  9. Quality assessment of human behavior models

    NARCIS (Netherlands)

    Doesburg, W.A. van

    2007-01-01

    Accurate and efficient models of human behavior offer great potential in military and crisis management applications. However, little attention has been given to the man ner in which it can be determined if this potential is actually realized. In this study a quality assessment approach that

  10. An assessment model for quality management

    Science.gov (United States)

    Völcker, Chr.; Cass, A.; Dorling, A.; Zilioli, P.; Secchi, P.

    2002-07-01

    SYNSPACE together with InterSPICE and Alenia Spazio is developing an assessment method to determine the capability of an organisation in the area of quality management. The method, sponsored by the European Space Agency (ESA), is called S9kS (SPiCE- 9000 for SPACE). S9kS is based on ISO 9001:2000 with additions from the quality standards issued by the European Committee for Space Standardization (ECSS) and ISO 15504 - Process Assessments. The result is a reference model that supports the expansion of the generic process assessment framework provided by ISO 15504 to nonsoftware areas. In order to be compliant with ISO 15504, requirements from ISO 9001 and ECSS-Q-20 and Q-20-09 have been turned into process definitions in terms of Purpose and Outcomes, supported by a list of detailed indicators such as Practices, Work Products and Work Product Characteristics. In coordination with this project, the capability dimension of ISO 15504 has been revised to be consistent with ISO 9001. As contributions from ISO 9001 and the space quality assurance standards are separable, the stripped down version S9k offers organisations in all industries an assessment model based solely on ISO 9001, and is therefore interesting to all organisations, which intend to improve their quality management system based on ISO 9001.

  11. Water quality assessment and hydrochemical characteristics of ...

    Indian Academy of Sciences (India)

    Home; Journals; Journal of Earth System Science; Volume 123; Issue 1 ... Abstract. The present study is aimed at assessing the water quality and discussing the hydrochemical characteristics and seasonal variation of shallow groundwater on the aspect of metals in the eastern Chancheng district of Foshan city, south China.

  12. The biological basis for environmental quality assessments

    International Nuclear Information System (INIS)

    Karpov, V.I.; Kudritsky, Y.K.; Georgievsky, A.B.

    1991-01-01

    A systematic approach is required to environmental quality assessments with regard to the Baltic regions in order to address the problem of pollution abatement. The proposed systematization of adaptive states stems from the general theory of adaptation. The various types of adaption are described. (AB)

  13. Hydrogeochemistry and groundwater quality assessment of Ranipet ...

    Indian Academy of Sciences (India)

    This poses a problem of supply of safe drinking water in the rural parts of the country. A study was carried out to assess the groundwater pollution and identify major variables affecting the groundwater quality in Ranipet industrial area. Twenty five wells were monitored during pre- and post-monsoon in 2008 and analyzed for ...

  14. Quality Assessment on Environmental Conservation Interventions in ...

    African Journals Online (AJOL)

    need for immediate attention. Development in those selected councils involves environmental use which should not ignore the question of environmental conservation interventions. The main objective this study was to assess the environmental interventions by local government authorities on quality of environment ...

  15. Firm performance and employment in the EU emissions trading scheme: An empirical assessment for Germany

    International Nuclear Information System (INIS)

    Anger, Niels; Oberndorfer, Ulrich

    2008-01-01

    This paper empirically investigates the role of the EU Emissions Trading Scheme (EU ETS) for firm performance and employment in Germany. We provide an overview of relative allowance allocation within the EU ETS as well as an econometric analysis for a large sample of German firms covered by the scheme in order to assess the impacts of EU emissions regulation on both firm revenues and employment. The dataset indicates that the EU ETS was in an overall long position in 2005, although allowance allocation was very heterogeneous across member states. Our econometric analysis suggests that, within the first phase of the EU ETS, relative allowance allocation did not have a significant impact on firm performance and employment of regulated German firms

  16. Multidimensional Assessment of Spirituality/Religion in Patients with HIV: Conceptual Framework and Empirical Refinement

    Science.gov (United States)

    Kudel, Ian; Cotton, Sian; Leonard, Anthony C.; Tsevat, Joel; Ritchey, P. Neal

    2011-01-01

    A decade ago, an expert panel developed a framework for measuring spirituality/religion in health research (Brief Multidimensional Measure of Religiousness/Spirituality), but empirical testing of this framework has been limited. The purpose of this study was to determine whether responses to items across multiple measures assessing spirituality/religion by 450 patients with HIV replicate this model. We hypothesized a six-factor model underlying a collective of 56 items, but results of confirmatory factor analyses suggested eight dimensions: Meaning/Peace, Tangible Connection to the Divine, Positive Religious Coping, Love/Appreciation, Negative Religious Coping, Positive Congregational Support, Negative Congregational Support, and Cultural Practices. This study corroborates parts of the factor structure underlying the Brief Multidimensional Measure of Religiousness/Spirituality and some recent refinements of the original framework. PMID:21136166

  17. Air Quality Assessment Using Interpolation Technique

    Directory of Open Access Journals (Sweden)

    Awkash Kumar

    2016-07-01

    Full Text Available Air pollution is increasing rapidly in almost all cities around the world due to increase in population. Mumbai city in India is one of the mega cities where air quality is deteriorating at a very rapid rate. Air quality monitoring stations have been installed in the city to regulate air pollution control strategies to reduce the air pollution level. In this paper, air quality assessment has been carried out over the sample region using interpolation techniques. The technique Inverse Distance Weighting (IDW of Geographical Information System (GIS has been used to perform interpolation with the help of concentration data on air quality at three locations of Mumbai for the year 2008. The classification was done for the spatial and temporal variation in air quality levels for Mumbai region. The seasonal and annual variations of air quality levels for SO2, NOx and SPM (Suspended Particulate Matter have been focused in this study. Results show that SPM concentration always exceeded the permissible limit of National Ambient Air Quality Standard. Also, seasonal trends of pollutant SPM was low in monsoon due rain fall. The finding of this study will help to formulate control strategies for rational management of air pollution and can be used for many other regions.

  18. A high-resolution, empirical approach to climate impact assessment for regulatory analysis

    Science.gov (United States)

    Delgado, M.; Simcock, J. G.; Greenstone, M.; Hsiang, S. M.; Kopp, R. E.; Carleton, T.; Hultgren, A.; Jina, A.; Rising, J. A.; Nath, I.; Yuan, J.; Rode, A.; Chong, T.; Dobbels, G.; Hussain, A.; Wang, J.; Song, Y.; Mohan, S.; Larsen, K.; Houser, T.

    2017-12-01

    Recent breakthroughs in computing, data availability, and methodology have precipitated significant advances in the understanding of the relationship between climate and socioeconomic outcomes [1]. And while the use of estimates of the global marginal costs of greenhouse gas emissions (e.g. the SCC) are a mandatory component of regulatory policy in many jurisdictions, existing SCC-IAMs have lagged advances in impact assessment and valuation [2]. Recent work shows that incorporating high spatial and temporal resolution can significantly affect the observed relationships of economic outcomes to climate and socioeconomic factors [3] and that maintaining this granularity is critical to understanding the sensitivity of aggregate measures of valuation to inequality and risk adjustment methodologies [4]. We propose a novel framework that decomposes uncertainty in the SCC along multiple sources, including aggregate climate response parameters, the translation of global climate into local weather, the effect of weather on physical and economic systems, human and macro-economic responses, and impact valuation methodologies. This work extends Hsiang et al. (2017) [4] to directly estimate local response functions for multiple sectors in each of 24,378 global regions and to estimate impacts at this resolution daily, incorporating endogenous, empirically-estimated adaptation and costs. The goal of this work is to provide insight into the heterogeneity of climate impacts and to work with other modeling teams to enhance the empirical grounding of integrated climate impact assessment in more complex energy-environment-economics models. [1] T. Carleton and S. Hsiang (2016), DOI: 10.1126/science.aad9837. [2] National Academies of Sciences, Engineering, and Medicine (2017), DOI: 10.17226/24651. [3] Burke, M., S. Hsiang, and E. Miguel (2015), DOI: 10.1038/nature15725. [4] S. Hsiang et al. (2017), DOI: 10.1126/science.aal4369.

  19. Parasitology: United Kingdom National Quality Assessment Scheme.

    Science.gov (United States)

    Hawthorne, M.; Chiodini, P. L.; Snell, J. J.; Moody, A. H.; Ramsay, A.

    1992-01-01

    AIMS: To assess the results from parasitology laboratories taking part in a quality assessment scheme between 1986 and 1991; and to compare performance with repeat specimens. METHODS: Quality assessment of blood parasitology, including tissue parasites (n = 444; 358 UK, 86 overseas), and faecal parasitology, including extra-intestinal parasites (n = 205; 141 UK, 64 overseas), was performed. RESULTS: Overall, the standard of performance was poor. A questionnaire distributed to participants showed that a wide range of methods was used, some of which were considered inadequate to achieve reliable results. Teaching material was distributed to participants from time to time in an attempt to improve standards. CONCLUSIONS: Since the closure of the IMLS fellowship course in 1972, fewer opportunities for specialised training in parasitology are available: more training is needed. Poor performance in the detection of malarial parasites is mainly attributable to incorrect speciation, misidentification, and lack of equipment such as an eyepiece graticule. PMID:1452791

  20. Water Quality Assessment using Satellite Remote Sensing

    Science.gov (United States)

    Haque, Saad Ul

    2016-07-01

    The two main global issues related to water are its declining quality and quantity. Population growth, industrialization, increase in agriculture land and urbanization are the main causes upon which the inland water bodies are confronted with the increasing water demand. The quality of surface water has also been degraded in many countries over the past few decades due to the inputs of nutrients and sediments especially in the lakes and reservoirs. Since water is essential for not only meeting the human needs but also to maintain natural ecosystem health and integrity, there are efforts worldwide to assess and restore quality of surface waters. Remote sensing techniques provide a tool for continuous water quality information in order to identify and minimize sources of pollutants that are harmful for human and aquatic life. The proposed methodology is focused on assessing quality of water at selected lakes in Pakistan (Sindh); namely, HUBDAM, KEENJHAR LAKE, HALEEJI and HADEERO. These lakes are drinking water sources for several major cities of Pakistan including Karachi. Satellite imagery of Landsat 7 (ETM+) is used to identify the variation in water quality of these lakes in terms of their optical properties. All bands of Landsat 7 (ETM+) image are analyzed to select only those that may be correlated with some water quality parameters (e.g. suspended solids, chlorophyll a). The Optimum Index Factor (OIF) developed by Chavez et al. (1982) is used for selection of the optimum combination of bands. The OIF is calculated by dividing the sum of standard deviations of any three bands with the sum of their respective correlation coefficients (absolute values). It is assumed that the band with the higher standard deviation contains the higher amount of 'information' than other bands. Therefore, OIF values are ranked and three bands with the highest OIF are selected for the visual interpretation. A color composite image is created using these three bands. The water quality

  1. Increasing the Rigor of Procedural Fidelity Assessment: An Empirical Comparison of Direct Observation and Permanent Product Review Methods

    Science.gov (United States)

    Sanetti, Lisa M. Hagermoser; Collier-Meek, Melissa A.

    2014-01-01

    Although it is widely accepted that procedural fidelity data are important for making valid decisions about intervention effectiveness, there is little empirical guidance for researchers and practitioners regarding how to assess procedural fidelity. A first step in moving procedural fidelity assessment research forward is to develop a…

  2. External Quality Assessment Schemes in Latin America

    Science.gov (United States)

    2015-01-01

    As professionals of the clinical laboratory we must generate clinically useful results, products and services for the patients’ health care. Laboratories must participate in one or more proficiency testing (PT) or external quality assessment (EQA) programs as part of routine quality assurance. Nevertheless participating per se is not enough. There are critical factors to take into consideration when selecting a PT or EQA providers. In most cases the survey’s providers offer assigned values obtained from consensus of results provided by the participants for comparison, it is critical to evaluate consistency of the comparison group before interpretation and decision-making. PMID:27683496

  3. Quality Assessment of Domesticated Animal Genome Assemblies

    DEFF Research Database (Denmark)

    Seemann, Stefan E; Anthon, Christian; Palasca, Oana

    2015-01-01

    domesticated animal genomes still need to be sequenced deeper in order to produce high-quality assemblies. In the meanwhile, ironically, the extent to which RNAseq and other next-generation data is produced frequently far exceeds that of the genomic sequence. Furthermore, basic comparative analysis is often...... affected by the lack of genomic sequence. Herein, we quantify the quality of the genome assemblies of 20 domesticated animals and related species by assessing a range of measurable parameters, and we show that there is a positive correlation between the fraction of mappable reads from RNAseq data...

  4. Arbuscular mycorrhiza in soil quality assessment

    DEFF Research Database (Denmark)

    Kling, M.; Jakobsen, I.

    1998-01-01

    Arbuscular mycorrhizal (AM) fungi constitute a living bridge for the transport of nutrients from soil to plant roots, and are considered as the group of soil microorganisms that is of most direct importance to nutrient uptake by herbaceous plants. AM fungi also contribute to the formation of soil...... aggregates and to the protection of plants against drought and root pathogens. Assessment of soil quality, defined as the capacity of a soil to function within ecosystem boundaries to sustain biological productivity, maintain environmental quality, and promote plant health, should therefore include both...

  5. An empirical, hierarchical typology of tree species assemblages for assessing forest dynamics under global change scenarios.

    Directory of Open Access Journals (Sweden)

    Jennifer K Costanza

    Full Text Available The composition of tree species occurring in a forest is important and can be affected by global change drivers such as climate change. To inform assessment and projection of global change impacts at broad extents, we used hierarchical cluster analysis and over 120,000 recent forest inventory plots to empirically define forest tree assemblages across the U.S., and identified the indicator and dominant species associated with each. Cluster typologies in two levels of a hierarchy of forest assemblages, with 29 and 147 groups respectively, were supported by diagnostic criteria. Groups in these two levels of the hierarchy were labeled based on the top indicator species in each, and ranged widely in size. For example, in the 29-cluster typology, the sugar maple-red maple assemblage contained the largest number of plots (30,068, while the butternut-sweet birch and sourwood-scarlet oak assemblages were both smallest (6 plots each. We provide a case-study demonstration of the utility of the typology for informing forest climate change impact assessment. For five assemblages in the 29-cluster typology, we used existing projections of changes in importance value (IV for the dominant species under one low and one high climate change scenario to assess impacts to the assemblages. Results ranged widely for each scenario by the end of the century, with each showing an average decrease in IV for dominant species in some assemblages, including the balsam fir-quaking aspen assemblage, and an average increase for others, like the green ash-American elm assemblage. Future work should assess adaptive capacity of these forest assemblages and investigate local population- and community-level dynamics in places where dominant species may be impacted. This typology will be ideal for monitoring, assessing, and projecting changes to forest communities within the emerging framework of macrosystems ecology, which emphasizes hierarchies and broad extents.

  6. Quality assurance in diagnostic radiology - assessing the fluoroscopic image quality

    International Nuclear Information System (INIS)

    Tabakov, S.

    1995-01-01

    The X-ray fluoroscopic image has a considerably lower resolution than the radiographic one. This requires a careful quality control aiming at optimal use of the fluoroscopic equipment. The basic procedures for image quality assessment of Image Intensifier/TV image are described. Test objects from Leeds University (UK) are used as prototypes. The results from examining 50 various fluoroscopic devices are shown. Their limiting spatial resolution varies between 0.8 lp/mm (at maximum II field size) and 2.24 lp/mm (at minimum field size). The mean value of the limiting spatial resolution for a 23 cm Image Intensifier is about 1.24 lp/mm. The mean limits of variation of the contrast/detail diagram for various fluoroscopic equipment are graphically expressed. 14 refs., 1 fig. (author)

  7. Quality Assessment of Urinary Stone Analysis

    DEFF Research Database (Denmark)

    Siener, Roswitha; Buchholz, Noor; Daudon, Michel

    2016-01-01

    After stone removal, accurate analysis of urinary stone composition is the most crucial laboratory diagnostic procedure for the treatment and recurrence prevention in the stone-forming patient. The most common techniques for routine analysis of stones are infrared spectroscopy, X-ray diffraction...... and chemical analysis. The aim of the present study was to assess the quality of urinary stone analysis of laboratories in Europe. Nine laboratories from eight European countries participated in six quality control surveys for urinary calculi analyses of the Reference Institute for Bioanalytics, Bonn, Germany......, between 2010 and 2014. Each participant received the same blinded test samples for stone analysis. A total of 24 samples, comprising pure substances and mixtures of two or three components, were analysed. The evaluation of the quality of the laboratory in the present study was based on the attainment...

  8. Multiple Image Arrangement for Subjective Quality Assessment

    Science.gov (United States)

    Wang, Yan; Zhai, Guangtao

    2017-12-01

    Subjective quality assessment serves as the foundation for almost all visual quality related researches. Size of the image quality databases has expanded from dozens to thousands in the last decades. Since each subjective rating therein has to be averaged over quite a few participants, the ever-increasing overall size of those databases calls for an evolution of existing subjective test methods. Traditional single/double stimulus based approaches are being replaced by multiple image tests, where several distorted versions of the original one are displayed and rated at once. And this naturally brings upon the question of how to arrange those multiple images on screen during the test. In this paper, we answer this question by performing subjective viewing test with eye tracker for different types arrangements. Our research indicates that isometric arrangement imposes less duress on participants and has more uniform distribution of eye fixations and movements and therefore is expected to generate more reliable subjective ratings.

  9. Air quality assessment in Salim Slam Tunnel

    International Nuclear Information System (INIS)

    El-Fadel, M.; Hashisho, Z.; Saikaly, P.

    1999-01-01

    Full text.Vehicle emissions constitute a serious occupational environmental hazard particularly in confined spaces such as tunnels and underground parking garages. these emissions at elevated concentrations, can cause adverse health effects, which range from nausea and eye irritation to mutagenicity, carcinogenicity and even death. This paper presents an environmental air quality assessment in a tunnel located in a highly congested urban area. For this purpose, air samples were collected and analyzed for the presence of primary air pollutants, priority metals, and volatile organic carbons. Air quality modeling was conducted to simulate variations of pollutant concentrations in the tunnel under worst case scenarios including traffic congestion and no air ventilation. Field measurements and mathematical simulation results were used to develop a strategy for proper air quality management in tunnels

  10. Visual quality assessment by machine learning

    CERN Document Server

    Xu, Long; Kuo, C -C Jay

    2015-01-01

    The book encompasses the state-of-the-art visual quality assessment (VQA) and learning based visual quality assessment (LB-VQA) by providing a comprehensive overview of the existing relevant methods. It delivers the readers the basic knowledge, systematic overview and new development of VQA. It also encompasses the preliminary knowledge of Machine Learning (ML) to VQA tasks and newly developed ML techniques for the purpose. Hence, firstly, it is particularly helpful to the beginner-readers (including research students) to enter into VQA field in general and LB-VQA one in particular. Secondly, new development in VQA and LB-VQA particularly are detailed in this book, which will give peer researchers and engineers new insights in VQA.

  11. A three-model comparison of the relationship between quality, satisfaction and loyalty: an empirical study of the Chinese healthcare system

    Directory of Open Access Journals (Sweden)

    Lei Ping

    2012-11-01

    Full Text Available Abstract Background Previous research has addressed the relationship between customer satisfaction, perceived quality and customer loyalty intentions in consumer markets. In this study, we test and compare three theoretical models of the quality–satisfaction–loyalty relationship in the Chinese healthcare system. Methods This research focuses on hospital patients as participants in the process of healthcare procurement. Empirical data were obtained from six Chinese public hospitals in Shanghai. A total of 630 questionnaires were collected in two studies. Study 1 tested the research instruments, and Study 2 tested the three models. Confirmatory factor analysis was used to assess the scales’ construct validity by testing convergent and discriminant validity. A structural equation model (SEM specified the distinctions between each construct. A comparison of the three theoretical models was conducted via AMOS analysis. Results The results of the SEM demonstrate that quality and satisfaction are distinct concepts and that the first model (satisfaction mediates quality and loyalty is the most appropriate one in the context of the Chinese healthcare environment. Conclusions In this study, we test and compare three theoretical models of the quality–satisfaction–loyalty relationship in the Chinese healthcare system. Findings show that perceived quality improvement does not lead directly to customer loyalty. The strategy of using quality improvement to maintain patient loyalty depends on the level of patient satisfaction. This implies that the measurement of patient experiences should include topics of importance for patients’ satisfaction with health care services.

  12. A three-model comparison of the relationship between quality, satisfaction and loyalty: an empirical study of the Chinese healthcare system

    Science.gov (United States)

    2012-01-01

    Background Previous research has addressed the relationship between customer satisfaction, perceived quality and customer loyalty intentions in consumer markets. In this study, we test and compare three theoretical models of the quality–satisfaction–loyalty relationship in the Chinese healthcare system. Methods This research focuses on hospital patients as participants in the process of healthcare procurement. Empirical data were obtained from six Chinese public hospitals in Shanghai. A total of 630 questionnaires were collected in two studies. Study 1 tested the research instruments, and Study 2 tested the three models. Confirmatory factor analysis was used to assess the scales’ construct validity by testing convergent and discriminant validity. A structural equation model (SEM) specified the distinctions between each construct. A comparison of the three theoretical models was conducted via AMOS analysis. Results The results of the SEM demonstrate that quality and satisfaction are distinct concepts and that the first model (satisfaction mediates quality and loyalty) is the most appropriate one in the context of the Chinese healthcare environment. Conclusions In this study, we test and compare three theoretical models of the quality–satisfaction–loyalty relationship in the Chinese healthcare system. Findings show that perceived quality improvement does not lead directly to customer loyalty. The strategy of using quality improvement to maintain patient loyalty depends on the level of patient satisfaction. This implies that the measurement of patient experiences should include topics of importance for patients’ satisfaction with health care services. PMID:23198824

  13. An empirical study of the impact of service quality on patient satisfaction in private hospitals, Iran.

    Science.gov (United States)

    Zarei, Ehsan; Daneshkohan, Abbas; Pouragha, Behrouz; Marzban, Sima; Arab, Mohammad

    2014-07-29

    Perceived service quality is the most important predictor of patient satisfaction. The purpose of this study was to investigate the impact of the service quality on the overall satisfaction of patients in private hospitals of Tehran, Iran. This cross-sectional study was conducted in the year 2010. The study's sample consisted of 969 patients who were recruited from eight private general hospitals in Tehran, Iran using consecutive sampling. A questionnaire was used for data collection; contacting 21 items (17 items about service quality and 4 items about overall satisfaction) and its validity and reliability were confirmed. Data analysis was performed using t-test, ANOVA and multivariate regression. this study found a strong relationship between service quality and patient satisfaction. About 45% of the variance in overall satisfaction was explained by four dimensions of perceived service quality. The cost of services, the quality of the process and the quality of interaction had the greatest effects on the overall satisfaction of patients, but not found a significant effect on the quality of the physical environment on patient satisfaction. Constructs related to costs, delivery of service and interpersonal aspect of care had the most positive impact on overall satisfaction of patients. Managers and owners of private hospitals should set reasonable prices compared to the quality of service. In terms of process quality, waiting time for visits, admissions, and surgeries must be declined and services provided at the fastest possible time. It should be emphasized to strengthen of interpersonal aspects of care and communication skills of care providers.

  14. Underground Water Assessment using Water Quality Index

    Directory of Open Access Journals (Sweden)

    Jonathan YISA

    2012-12-01

    Full Text Available This study was designed to assess the quality of selected hand dug wells in Maikunkele area of Niger State, Nigeria using Water Quality Index (WQI. ten hand dug wells were randomly selected in Maikunkele area of Bosso Local Government and were tested for nine (9 parameters of National Sanitation Foundation (NSF using standard analytical procedures. WQI results indicated that the quality of the selected well water samples were medium except for sample 2 that was extremely bad. The findings also revealed that all the samples except samples 2 and 3 had high coliform levels as high as 91 coliform/100cm3. This was an indication of faecal contamination substantiating the proximity of some of the wells to septic systems. The nitrate levels in all the samples exceeded the Maximum Contaminant Level (MCL of WHO, EPA, APHA and the Nigerian Drinking Water Standards. Based on the results obtained, the quality of the well water samples was therefore not suitable for human consumption without adequate treatment. Regular monitoring of groundwater quality, abolishment of unhealthy waste disposal practices and introduction of modern techniques were highly recommended.

  15. Students’ Perceptions about Role of Faculty and Administrative Staff in Business Education Service Quality Assessment

    Directory of Open Access Journals (Sweden)

    Maja Arslanagić-Kalajdžić

    2014-06-01

    Full Text Available This paper focuses on dimensions of the perceived service quality measurement for business schools. We propose an adapted SERVQUAL measure of expected and perceived quality, where employees at business schools are split into two groups: faculty and administrative staff, and assessed separately. This measure represents a tool for comparable service quality assessment at business schools. Empirical data were collected among undergraduate students in a developing economy. A total of 282 respondents were used to assess the overall fit of the proposed model and to test the differences between the expectations and the perceptions of service quality in a business school. The results support usability of the proposed adapted SERVQUAL measure. Therefore, the study contributes to the existing literature reporting the findings on service quality in an educational context.

  16. 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

  17. Measuring Service Quality Dimensions: An Empirical Analysis of Thai Hotel Industry

    OpenAIRE

    Dr. Sakun Boon-itt; Dr. Nopadol Rompho

    2012-01-01

    The aim of this study is to focus on hotel service quality based on the application of 29 characteristic indicators from the SERVQUAL model by comparing two hotel types, namely the boutique and the business hotel, in Thailand and to understand the expectation, perception and gaps between expectation and perception regarding hotel service quality. The study applied a self-administered questionnaire to measure the expectation and perception of service quality characteristics of hotels in Thaila...

  18. CUSTOMERS’ PERCEPTIONS OF SERVICE QUALITY DIMENSIONS IN THE INDONESIAN BANKING INDUSTRY: AN EMPIRICAL STUDY

    Directory of Open Access Journals (Sweden)

    Ananda Sabil Hussein

    2015-01-01

    Full Text Available This study aims to investigate the dimensions of hierarchical service quality in the area of the banking sector as well as to determine its relationships with other constructs, namely corpo-rate image and customer loyalty. One hundred and eleven respondents participated in this study. Partial Least Squares were employed to analyse the data. The inner and outer model evaluations showed that the proposed model was robust. This study found that the interaction quality, outcome quality and physical quality were the dimensions of service quality which were formed in the hierarchical model. In addition, this study indicated that service quality was a robust determinant of corporate image and customer loyalty in the banking sector. Similar to service quality, corporate image was also found to be an essential predictor of customer loyalty as well as the mediator between service quality and customer loyalty. To enhance the under-standing of service quality in the banking sector, further studies might add additional constructs such as brand engagement, perceived value, and customer experience.

  19. Development of Management Quality Assessment Methodology in the Public Sector: Problems and Contradictions

    Directory of Open Access Journals (Sweden)

    Olga Vladimirovna Kozhevina

    2015-09-01

    Full Text Available The development management quality assessment methodology in the public sector is relevant scientific and practical problem of economic research. The utilization of the results of the assessment on the basis of the authors’ methodology allows us to rate the public sector organizations, to justify decisions on the reorganization and privatization, and to monitor changes in the level of the management quality of the public sector organizations. The study determined the place of the quality of the control processes of the public sector organization in the system of “Quality of public administration — the effective operation of the public sector organization,” the contradictions associated with the assessment of management quality are revealed, the conditions for effective functioning of the public sector organizations are proved, a mechanism of comprehensive assessment and algorithm for constructing and evaluating the control models of management quality are developed, the criteria for assessing the management quality in the public sector organizations, including economic, budgetary, social and public, informational, innovation and institutional criteria are empirically grounded. By utilizing the proposed algorithm, the assessment model of quality management in the public sector organizations, including the financial, economic, social, innovation, informational and institutional indicators is developed. For each indicator of quality management, the coefficients of importance in the management quality assessment model, as well as comprehensive and partial evaluation indicators are determined on the basis of the expert evaluations. The main conclusion of the article is that management quality assessment for the public sector organizations should be based not only on the indicators achieved in the dynamics and utilized for analyzing the effectiveness of management, but also should take into account the reference levels for the values of these

  20. GTest: a software tool for graphical assessment of empirical distributions' Gaussianity.

    Science.gov (United States)

    Barca, E; Bruno, E; Bruno, D E; Passarella, G

    2016-03-01

    In the present paper, the novel software GTest is introduced, designed for testing the normality of a user-specified empirical distribution. It has been implemented with two unusual characteristics; the first is the user option of selecting four different versions of the normality test, each of them suited to be applied to a specific dataset or goal, and the second is the inferential paradigm that informs the output of such tests: it is basically graphical and intrinsically self-explanatory. The concept of inference-by-eye is an emerging inferential approach which will find a successful application in the near future due to the growing need of widening the audience of users of statistical methods to people with informal statistical skills. For instance, the latest European regulation concerning environmental issues introduced strict protocols for data handling (data quality assurance, outliers detection, etc.) and information exchange (areal statistics, trend detection, etc.) between regional and central environmental agencies. Therefore, more and more frequently, laboratory and field technicians will be requested to utilize complex software applications for subjecting data coming from monitoring, surveying or laboratory activities to specific statistical analyses. Unfortunately, inferential statistics, which actually influence the decisional processes for the correct managing of environmental resources, are often implemented in a way which expresses its outcomes in a numerical form with brief comments in a strict statistical jargon (degrees of freedom, level of significance, accepted/rejected H0, etc.). Therefore, often, the interpretation of such outcomes is really difficult for people with poor statistical knowledge. In such framework, the paradigm of the visual inference can contribute to fill in such gap, providing outcomes in self-explanatory graphical forms with a brief comment in the common language. Actually, the difficulties experienced by colleagues and

  1. An empirical research on evaluating banks' credit assessment of corporate customers.

    Science.gov (United States)

    Tsai, Sang-Bing; Li, Guodong; Wu, Chia-Huei; Zheng, Yuxiang; Wang, Jiangtao

    2016-01-01

    Under the rapid change of the global financial environment, the risk control of the credit granting is viewed as the foremost task to each bank. With the impact one by one from financial crisis and European debt crisis, the steady bank business is also facing the severe challenge. Banks approve the credits for their customers and then make money from the interest. Credit granting is not only the primary job but also the main source of income. The quality of credit granting concerns not just the reclaims of creditor's rights; it also affects the successful running of banks. To enhance the reliability and usefulness of bank credit risk assessment, we first will delve in the facets and indexes in the bank credit risk assessment. Then, we will examine the different dimensions of cause-effect relationships and correlations in the assessment process. Finally, the study focuses on how to raise the functions and benefits of the bank credit risk assessment. In those five credit risk evaluation dimensions, A "optional capability" and D "competitiveness" are of high relation and high prominence among those dimensions, influencing other items obviously. By actively focusing on these two dimensions and improving their credit risk assessment ability will solve the foremost problems and also solve other facets of credit risk assessment problems at the same time.

  2. External quality assessment of hormone determinations.

    Science.gov (United States)

    Sturgeon, Catharine M

    2013-12-01

    Hormone determinations are of central importance to the practice of Clinical Endocrinology, and ensuring their correct use and performance is a multidisciplinary responsibility involving clinicians, laboratory staff, manufacturers of diagnostic systems and healthcare regulatory agencies. All these professional groups have, therefore, an interest in external quality assessment (EQA) as an audit tool that can identify areas where use of tests in routine practice requires improvement to reduce risks to patients. This chapter reviews the principles of EQA, and outlines its strengths and limitations, illustrated with example data from the UK National External Quality Assessment Service (UK NEQAS). The immunological nature of many hormone assays, often further complicated by heterogeneity of analyte structure and lack of suitable calibrators, presents special problems for the designers of EQA schemes in ensuring that specimens are appropriate and that target values are accurate. Laboratory users of EQA should have sufficient knowledge of the characteristics of the EQA schemes in which they participate to make informed interpretation of their data. The trend since the 1980s for in-house assays designed in individual laboratories to be superseded by automated assays provided by a small number of diagnostics manufacturers places a special responsibility on manufacturers to ensure reliable assay design and calibration. In collaboration with other parties EQA can help identify priorities for improved assay design and calibration. Although traditionally the focus of EQA has been on assessing the analytical phase it can also make some assessment of other important aspects of performance, e.g. the consistency of reference ranges and how results are interpreted. Overall, EQA has a valuable role both in laboratory accreditation and as an educational resource, thereby helping to ensure and improve the quality of laboratory services that support patient care. Copyright © 2013

  3. Airline Service Quality Dimensions and Customer Loyalty: Empirical Evidence from Air Passengers’ in Lagos State

    Directory of Open Access Journals (Sweden)

    Ben Akpoyomare Oghojafor

    2016-12-01

    Full Text Available Air travellers are increasingly becoming more demanding in terms of their expectations of the quality of service offered by airline carriers. Hence, operators must improve service delivery to retain their loyalty. This study investigates the relationship between airline service quality dimensions and customer loyalty among air passengers in Lagos state. Causal research design was adopted to examine the aforementioned relationship. Convenience sampling technique was used to survey 600 air travellers. Data collected from the respondents were analysed by using Pearson correlation analysis and Anova. The findings reveal that the service quality and its dimensions are positive and significantly related to each other, overall service quality and customer loyalty. The results of the study indicate no significant difference between customers’ travelling for different motives in their perception of the quality of services. It was also discovered that flight frequency was insignificantly connected to customer loyalty. In line with the above findings, the study concludes that the airline service quality improvement initiatives should begin with recognition of customers’ needs. Correspondingly, airline operators should cultivate strategies to fulfil their service promise along the service quality dimensions, most important to air travellers to enhance customer loyalty.

  4. AN EMPIRICAL EXAMINATION OF QUALITY TOOLS IMPACT ON FINANCIAL PERFORMANCES: EVIDENCE FROM SERBIA

    Directory of Open Access Journals (Sweden)

    Vesna Spasojević Brkić

    2012-02-01

    Full Text Available This study examines the impact of quality tools on financial performances using a sample of 119Serbian industrial firms. Factor and reliability analysis are used to show that quality tools may beclassified into three primary categories: quality tools for reviewing current conditions (for decisionmaking, quality tools for analyzing current conditions (for problems solving and quality tools forproduction planning and control (for improvement. The relationships between these 3 groups ofquality tools and financial performances were tested using the stepwise regression analysis. It wasconcluded that the first group of quality tools (quality tools for reviewing current condition, e.g. fordecision making has significant impact on most of the dimensions of financial performances, whilefor the second and third group there is no statistical support. Influence of the first group of qualitytools on sales revenue is statistically significant at a p<0.01 significance level while it`s influence oncompany profit and total revenue per employee are statistically significant at p<0.05 significancelevel. The model ranged from 4% to 7%.

  5. Using Data Mining for Wine Quality Assessment

    Science.gov (United States)

    Cortez, Paulo; Teixeira, Juliana; Cerdeira, António; Almeida, Fernando; Matos, Telmo; Reis, José

    Certification and quality assessment are crucial issues within the wine industry. Currently, wine quality is mostly assessed by physicochemical (e.g alcohol levels) and sensory (e.g. human expert evaluation) tests. In this paper, we propose a data mining approach to predict wine preferences that is based on easily available analytical tests at the certification step. A large dataset is considered with white vinho verde samples from the Minho region of Portugal. Wine quality is modeled under a regression approach, which preserves the order of the grades. Explanatory knowledge is given in terms of a sensitivity analysis, which measures the response changes when a given input variable is varied through its domain. Three regression techniques were applied, under a computationally efficient procedure that performs simultaneous variable and model selection and that is guided by the sensitivity analysis. The support vector machine achieved promising results, outperforming the multiple regression and neural network methods. Such model is useful for understanding how physicochemical tests affect the sensory preferences. Moreover, it can support the wine expert evaluations and ultimately improve the production.

  6. Empirical assessment of energy-price policies: the case for cross-price elasticities

    International Nuclear Information System (INIS)

    Frondel, M.

    2004-01-01

    Evaluations of energy-price policies are necessarily based on measures of the substitution of energy and non-energy inputs. Facing a variety of substitution elasticities, the central question arises which measure would be appropriate. Apparently, for a long time, this question has not been at issue: Allen's elasticities of substitution (AES) have been the most-used measures in applied production analysis. This paper's main contribution is an instructive survey of the origin of substitution measures and of the trinity of empirical substitution elasticities-AES, cross-price elasticities, and the Morishima elasticities of substitution (MES)-with particular emphasis on their interpretations and the perspectives that will be captured by these measures. This survey clarifies why classical cross-price elasticities are to be preferred for many practical purposes. Berndt and Wood's (Rev. Econom. Stat. 57(1975) 259) frequently applied data set of US manufacturing is used to illustrate why assessments of energy-price policies would be better based on cross-price elasticities like the energy-price elasticity of capital, rather than on AES or MES. (author)

  7. Empirical assessment of published effect sizes and power in the recent cognitive neuroscience and psychology literature

    Science.gov (United States)

    Szucs, Denes; Ioannidis, John P. A.

    2017-01-01

    We have empirically assessed the distribution of published effect sizes and estimated power by analyzing 26,841 statistical records from 3,801 cognitive neuroscience and psychology papers published recently. The reported median effect size was D = 0.93 (interquartile range: 0.64–1.46) for nominally statistically significant results and D = 0.24 (0.11–0.42) for nonsignificant results. Median power to detect small, medium, and large effects was 0.12, 0.44, and 0.73, reflecting no improvement through the past half-century. This is so because sample sizes have remained small. Assuming similar true effect sizes in both disciplines, power was lower in cognitive neuroscience than in psychology. Journal impact factors negatively correlated with power. Assuming a realistic range of prior probabilities for null hypotheses, false report probability is likely to exceed 50% for the whole literature. In light of our findings, the recently reported low replication success in psychology is realistic, and worse performance may be expected for cognitive neuroscience. PMID:28253258

  8. Empirical assessment of published effect sizes and power in the recent cognitive neuroscience and psychology literature.

    Science.gov (United States)

    Szucs, Denes; Ioannidis, John P A

    2017-03-01

    We have empirically assessed the distribution of published effect sizes and estimated power by analyzing 26,841 statistical records from 3,801 cognitive neuroscience and psychology papers published recently. The reported median effect size was D = 0.93 (interquartile range: 0.64-1.46) for nominally statistically significant results and D = 0.24 (0.11-0.42) for nonsignificant results. Median power to detect small, medium, and large effects was 0.12, 0.44, and 0.73, reflecting no improvement through the past half-century. This is so because sample sizes have remained small. Assuming similar true effect sizes in both disciplines, power was lower in cognitive neuroscience than in psychology. Journal impact factors negatively correlated with power. Assuming a realistic range of prior probabilities for null hypotheses, false report probability is likely to exceed 50% for the whole literature. In light of our findings, the recently reported low replication success in psychology is realistic, and worse performance may be expected for cognitive neuroscience.

  9. The behavioral consequences of service quality: an empirical study in the Chinese retail pharmacy industry.

    Science.gov (United States)

    Chen, Yuwen; Fu, Frank Q

    2015-01-01

    This study focuses on the impacts of service quality and examines the mediating effects of customer satisfaction and customer loyalty on willingness to pay more. The authors collected survey data from 479 actual retail pharmacy customers in China and used the structural equation modeling approach to test the hypotheses. The results reveal six dimensions of service quality and the differential impact of these dimensions on customer satisfaction and behavioral intentions. This study contributes to the existing literature by exploring the dimensionality of the service quality construct and mediating effects of customer satisfaction and customer loyalty in a non-Western setting.

  10. Empirical Testing of a Conceptual Model and Measurement Instrument for the Assessment of Trustworthiness of Project Team Members

    NARCIS (Netherlands)

    Rusman, Ellen; Van Bruggen, Jan; Valcke, Martin

    2009-01-01

    Rusman, E., Van Bruggen, J., & Valcke, M. (2009). Empirical Testing of a Conceptual Model and Measurement Instrument for the Assessment of Trustworthiness of Project Team Members. Paper presented at the Trust Workshop at the Eighth International Conference on Autonomous Agents and Multiagent Systems

  11. An Empirical Investigation into the Construct of Higher Education Service Quality

    Directory of Open Access Journals (Sweden)

    Jaroslav Dado

    2011-01-01

    Full Text Available The paper addresses the issue of higher education service quality measurement and stresses the need of devising psychometrically as well as diagnostically sound measurement instruments, suitable to the context being investigated. The study builds upon the SERVQUAL scale, the inventory successfully tried and tested across a broad spectrum of service industries. Notwithstanding significant resemblance with the original five dimensions of service quality, research findings indicate six-dimensional structure of the construct of higher education service quality. Study performed on a sample of Engineering Management students reveals perceptions falling short of expectations across all of the determinants of service quality. The largest negative gap between students’ perceptions and expectations has been discovered concerning the potential for future career development, whereas research findings indicate the same dimension to be the most important predictor of students’ future behavioral intentions. In an attempt to inspire further interests in this field, managerial implications and directions for future research have been discussed.

  12. Depression assessment after traumatic brain injury: an empirically based classification method.

    Science.gov (United States)

    Seel, Ronald T; Kreutzer, Jeffrey S

    2003-11-01

    classifications emerged: minimally depressed (13-28), borderline depressed (29-42), and clinically depressed (43-65). Our study provided further evidence that screening for depression should be a standard component of TBI assessment protocols. Between 30% and 38% of patients with TBI were classified as depressed with the NFI Depression Scale and the BDI, respectively. Our findings also provided empirical evidence that the NFI Depression Scale is a useful tool for classifying postinjury depression.

  13. Topological image texture analysis for quality assessment

    Science.gov (United States)

    Asaad, Aras T.; Rashid, Rasber Dh.; Jassim, Sabah A.

    2017-05-01

    Image quality is a major factor influencing pattern recognition accuracy and help detect image tampering for forensics. We are concerned with investigating topological image texture analysis techniques to assess different type of degradation. We use Local Binary Pattern (LBP) as a texture feature descriptor. For any image construct simplicial complexes for selected groups of uniform LBP bins and calculate persistent homology invariants (e.g. number of connected components). We investigated image quality discriminating characteristics of these simplicial complexes by computing these models for a large dataset of face images that are affected by the presence of shadows as a result of variation in illumination conditions. Our tests demonstrate that for specific uniform LBP patterns, the number of connected component not only distinguish between different levels of shadow effects but also help detect the infected regions as well.

  14. Airline Service Quality Dimensions and Customer Loyalty: Empirical Evidence from Air Passengers’ in Lagos State

    OpenAIRE

    Ben Akpoyomare Oghojafor; Kunle Adeosun Ladipo Patrick; Ganiyu Rahim Ajao

    2016-01-01

    Air travellers are increasingly becoming more demanding in terms of their expectations of the quality of service offered by airline carriers. Hence, operators must improve service delivery to retain their loyalty. This study investigates the relationship between airline service quality dimensions and customer loyalty among air passengers in Lagos state. Causal research design was adopted to examine the aforementioned relationship. Convenience sampling technique was used to survey 600 air trav...

  15. Assessment of the quality of educational portals

    Directory of Open Access Journals (Sweden)

    R. G. Bolbakov

    2017-01-01

    Full Text Available The article describes the results of theoretical and experimental studies on the evaluation of the quality of educational information placed on information and educational portals. The methodology allows you to compare not only portals, but also the results of training on exam scores and test scores. The methodological basis of the assessment is the cognitive approach and the negentropic approach. The article gives a comparison of entropy and negentropy. On the basis of comparison, the authors propose a negentropic approach to assessing the quality of educational resources obtained as a result of information retrieval. The search results are evaluated by cognitive and perpetual scores. Estimates are introduced into the entropy formula and converted to the formula of negentropy. The negentropic approach serves as the basis for calculating the statistical amount of information obtained as a result of information retrieval. The cognitive approach serves as a basis for assessing the qualitative characteristics of educational information, such as: visibility, perceptibility, interpretability. Open information portalsare the source of educational resources. The article shows that modern information portals are often clogged with unreliable or unnecessary information, which makes it difficult to find relevant educational information. In contrast to the widespread methods for one relevanceassess of the information retrieval, this article differentiates the notion of the relevance of the information retrieval. The article introduces three qualitatively different notions of relevance: formal, semantic and perpetual – relevance. The article introduces new additional characteristics of the quality of information search, the coefficient of cognition and the coefficient of perpetuation. These coefficients are introduced into the formula for estimating entropy and obtain the cognitive-entropy formula. As a result, a new method for assessing the content of

  16. Quality management and the work environment: an empirical investigation in a public sector organization.

    Science.gov (United States)

    Taveira, Alvaro D; James, Craig A; Karsh, Ben -Tzion; Sainfort, François

    2003-07-01

    The integration of quality management initiatives, particularly total quality management (TQM), and ergonomics has received increasing attention from scholars and practitioners. Above all, the question of how TQM programs relate to ergonomic aspects of organizational design and culture is at the center of this discussion. This study examines how elements of a "typical", Deming-inspired, TQM program in the public sector interact with the work environment. Elements of the TQM program were defined and measured using the Malcom Baldridge Award criteria. The specific elements examined were "Management Support of Quality", "Information and Analysis", "Human Resources", "Processes and Quality Results", and "Customer Focus and Satisfaction". The relationship between these TQM elements and the work environment were defined through five separate hypotheses. The work environment was described by the constructs "Supervisor Support", "Task Clarity", "Task Orientation", and "Innovation". Data were obtained through survey questionnaires administered to employees of four departments in a municipal government organization. Results supported three of the hypotheses, but produced some unanticipated outcomes with regard to the other two. Namely, "Management Support of Quality" was significantly related to "Supervisor Support", "Task Orientation", "Task Clarity" and "Innovation"; "Human Resources" was significantly related to "Supervisor Support"; "Processes and Quality Results" was significantly related to "Task Orientation" and "Innovation". Contrary to predicted "Information and Analysis" was negatively related to "Innovation", and "Customer Focus" was unrelated to any of the outcome variables. The relationships between these TQM elements and work environment dimensions are discussed. Implications for TQM and ergonomic practice are analyzed, and directions for future research proposed.

  17. Service quality in peacekeeping mission as a determinant of customer’s perceived value: Empirical evidence

    Directory of Open Access Journals (Sweden)

    Azman Bin Ismail

    2014-05-01

    Full Text Available Purpose: Previous studies have been employing SERVQUAL by Parasuraman et al. (1985, 1988 to measure service quality in various service sectors due to its generic nature. Understanding the relationship between service quality and customer’s perceived value in non-business organizational settings is equally important with business setting as positive perception leads to favorable outcome. Hence, the aim of this study is to examine the relationship between service quality and perceived value. Design/methodology/approach: The self-administered survey questionnaires were employed to gather data from Malaysian soldiers who involved in peacekeeping mission at a Middle Eastern country. The hypothesized model was analyzed using the SmartPLS 2.0. Findings: The outcomes of SmartPLS path model confirmed that that all service quality dimensions namely tangible, responsiveness, reliability, assurance, empathy did act as important determinants of customer’s perceived value in the organizational sample. Practical implications: The findings of this study may be used as guidelines by practitioners to formulate relevant and appropriate strategies in order to enhance quality of service delivery in agile organizations. Originality/value: The work deals with service quality in non-business setting. Although the scale has been widely used, some modifications are generally needed in order to reflect specific characteristics of service sectors under study. The findings confirmed that in general SERVQUAL five dimensions are important determinants to the various service sectors.

  18. No training blind image quality assessment

    Science.gov (United States)

    Chu, Ying; Mou, Xuanqin; Ji, Zhen

    2014-03-01

    State of the art blind image quality assessment (IQA) methods generally extract perceptual features from the training images, and send them into support vector machine (SVM) to learn the regression model, which could be used to further predict the quality scores of the testing images. However, these methods need complicated training and learning, and the evaluation results are sensitive to image contents and learning strategies. In this paper, two novel blind IQA metrics without training and learning are firstly proposed. The new methods extract perceptual features, i.e., the shape consistency of conditional histograms, from the joint histograms of neighboring divisive normalization transform coefficients of distorted images, and then compare the length attribute of the extracted features with that of the reference images and degraded images in the LIVE database. For the first method, a cluster center is found in the feature attribute space of the natural reference images, and the distance between the feature attribute of the distorted image and the cluster center is adopted as the quality label. The second method utilizes the feature attributes and subjective scores of all the images in the LIVE database to construct a dictionary, and the final quality score is calculated by interpolating the subjective scores of nearby words in the dictionary. Unlike the traditional SVM based blind IQA methods, the proposed metrics have explicit expressions, which reflect the relationships of the perceptual features and the image quality well. Experiment results in the publicly available databases such as LIVE, CSIQ and TID2008 had shown the effectiveness of the proposed methods, and the performances are fairly acceptable.

  19. Sonic testing in assessment of casting quality

    Directory of Open Access Journals (Sweden)

    A. Białobrzeski

    2008-04-01

    Full Text Available The aim of the present study has been designing and putting in operation of a stand for sonic testing equipped with modern and readily available numerical devices and with the author’s own computer program, which enables recording and analysis of acoustic fields and of the frequency of free vibrations in selected castings made from Fe and Al alloys, and specifically also from magnesium alloys, and mastering the technique of making such tests along with their practical application in assessment of the quality of castings made from magnesium alloys and investment castings made from carbon steel.

  20. Assessment of daylight quality in simple rooms

    DEFF Research Database (Denmark)

    Johnsen, Kjeld; Dubois, Marie-Claude; Sørensen, Karl Grau

    The present report documents the results of a study on daylight conditions in simple rooms of residential buildings. The overall objective of the study was to develop a basis for a method for the assessment of daylight quality in a room with simple geometry and window configurations. As a tool...... the windows). A number of light indicators allowed understanding and describing the geometry of daylight in the space in a very detailed and thorough manner. The inclusion of the daylight factor, horizontal illuminance, luminance distribution, cylindrical illuminance, the Daylight Glare Index, vertical...

  1. Service Quality and Process Maturity Assessment

    Directory of Open Access Journals (Sweden)

    Serek Radomir

    2013-12-01

    Full Text Available This article deals with service quality and the methods for its measurement and improvements to reach the so called service excellence. Besides older methods such as SERVQUAL and SERPERF, there are also shortly described capability maturity models based on which the own methodology is developed and used for process maturity assessment in organizations providing technical services. This method is equally described and accompanied by examples on pictures. The verification of method functionality is explored on finding a correlation between service employee satisfaction and average process maturity in a service organization. The results seem to be quite promising and open an arena for further studies.

  2. Empirical Study on the Relationships of Internet Banking Quality, Customer Value, and Customer Satisfaction

    Directory of Open Access Journals (Sweden)

    Umbas KRISNANTO

    2017-06-01

    Full Text Available The purpose of this conducted study was to test the direct and indirect effects of internet banking quality and customer value to customer satisfaction. This study uses descriptive analysis and multiple regression analysis to examine these relationships. The study is based on a survey conducted with respondents who use internet banking in their day-to-day activities, and all questionnaire items are deemed valid and reliable. For data analysis, the descriptive analysis for the indicators, dimensions, and variables proved to be in a good category. Research findings and implications of the regression analysis show that internet banking quality and customer value had a greater direct impact on customer satisfaction, rather the partial relationships of these variables to satisfaction. In the partial relationships, customer value has a higher influence on customer satisfaction, than internet banking quality. As a research recommendation, banks should provide a more humanistic internet banking service for better consumer satisfaction. A major research limitation of the study is that it does not measure service quality of internet banking, and only focuses on customers of internet banking use of one single bank. The originality of this research relies on the insights of internet banking quality leading to customer satisfaction and increasing the value of a bank to its main target markets.

  3. Assessing biodiesel quality parameters for wastewater grown Chlorella sp.

    Science.gov (United States)

    Bagul, Samadhan Yuvraj; K Bharti, Randhir; Dhar, Dolly Wattal

    2017-07-01

    Microalgae are reported as the efficient source of renewable biodiesel which should be able to meet the global demand of transport fuels. Present study is focused on assessment of wastewater grown indigenous microalga Chlorella sp. for fuel quality parameters. This was successfully grown in secondary treated waste water diluted with tap water (25% dilution) in glass house. The microalga showed a dry weight of 0.849 g L -1 with lipid content of 27.1% on dry weight basis on 21st day of incubation. After transesterification, the yield of fatty acid methyl ester was 80.64% with major fatty acids as palmitic, linoleic, oleic and linolenic. The physical parameters predicted from empirical equations in the biodiesel showed cetane number as 56.5, iodine value of 75.5 g I 2 100 g -1 , high heating value 40.1 MJ kg -1 , flash point 135 °C, kinematic viscosity 4.05 mm 2 s -1 with density of 0.86 g cm 3 and cold filter plugging point as 0.7 °C. Fourier transform infra-red (FTIR), 1 H, 13 C NMR spectrum confirmed the chemical nature of biodiesel. The results indicated that the quality of biodiesel was almost as per the criterion of ASTM standards; hence, wastewater grown Chlorella sp. can be used as a promising strain for biodiesel production.

  4. Assessment of sleep quality in powernapping

    DEFF Research Database (Denmark)

    Kooravand Takht Sabzy, Bashaer; Thomsen, Carsten E

    2011-01-01

    The purpose of this study is to assess the Sleep Quality (SQ) in powernapping. The contributed factors for SQ assessment are time of Sleep Onset (SO), Sleep Length (SL), Sleep Depth (SD), and detection of sleep events (K-complex (KC) and Sleep Spindle (SS)). Data from daytime nap for 10 subjects, 2...... days each, including EEG and ECG were recorded. The SD and sleep events were analyzed by applying spectral analysis. The SO time was detected by a combination of signal spectral analysis, Slow Rolling Eye Movement (SREM) detection, Heart Rate Variability (HRV) analysis and EEG segmentation using both...... Autocorrelation Function (ACF), and Crosscorrelation Function (CCF) methods. The EEG derivation FP1-FP2 filtered in a narrow band and used as an alternative to EOG for SREM detection. The ACF and CCF segmentation methods were also applied for detection of sleep events. The ACF method detects segment boundaries...

  5. Investigating the effects of service quality and hedonic on behavioral intentions: An empirical survey on restaurant industry

    Directory of Open Access Journals (Sweden)

    Seyed Hossein Mansouri

    2013-10-01

    Full Text Available This research proposes a comprehensive model that investigates the relationships between service quality, hedonic, perceived value and behavioral intentions. The purpose of this study is to build a better understanding of the determinants of customer satisfaction and customer loyalty throughout the restaurant services by incorporating the perceptions of hedonic effect in service delivery and outlining why and how service quality is important to customer satisfaction and customer loyalty. Respondents were chosen from three regular customers of Atawich chain restaurants in city of Tehran by using stratified random sampling method. A total of 390 questionnaires were used for data analysis. Structural equations modeling by using LISREL was performed to empirically test the relationships between the constructs of this study. Results show that both service quality and hedonic effect are importance predictors of customer satisfaction in Iranian society. In addition, results indicate that service quality and hedonic effect have positive and significant effects on perceived value. However, relationship between customer satisfaction and perceived value with attitudinal loyalty was not significant. Finally, it suggests that restaurant managers should improve their restaurant service offerings to satisfy customers. In addition, the results emphasize the significance of hedonic effect and positive emotions in creating perceived value and customer satisfaction.

  6. Ergonomics, quality and continuous improvement--conceptual and empirical relationships in an industrial context.

    Science.gov (United States)

    Eklund, J

    1997-10-01

    This paper reviews the literature comparing the fields of ergonomics and quality, mainly in an industrial context, including mutual influences, similarities and differences. Relationships between ergonomics and the factors: work conditions, product design, ISO 9000, continuous improvements and TQM are reviewed in relation to the consequence, application, and process domains. The definitions of ergonomics and quality overlap substantially. Quality deficiencies, human errors and ergonomics problems often have the same cause, which in many cases can be traced to the design of work, workplace and environment e.g. noise, light, postures, loads, pace and work content. In addition, the possibility of performing to a high standard at work is an important prerequisite for satisfaction and well-being. Contradictions between the two fields have been identified in the view of concepts such as standardization, reduction of variability and copying of best practice, requiring further research. The field of quality would gain by incorporating ergonomics knowledge, especially in the areas of work design and human capability, since these factors are decisive for human performance and also therefore the performance of the systems involved. The field of ergonomics, on the other hand, would benefit from developing a stronger emphasis on methodologies and structures for improvement processes, including a clearer link with leadership and company strategies. Just as important is a further development of practicable participative ergonomics methods and tools for use at workplaces by the workers themselves, in order to integrate the top-down and the bottom-up processes and achieve better impact. Using participative processes for problem-solving and continuous improvement, focusing ergonomics and quality jointly has a great potential for improving working conditions and quality results simultaneously, and satisfying most of the interested parties.

  7. Asset quality in a crisis period: An empirical examination of Ghanaian banks

    Directory of Open Access Journals (Sweden)

    Abdul Latif Alhassan

    2014-01-01

    Full Text Available This paper examines the factors that account for the deterioration in the asset quality of Ghanaian banks during a period of financial crises using a unique dataset on 25 banks from 2005 to 2010. Based on system Generalized Method of Moments estimations, we find that the persistence of non-performing loans in addition to loan growth, bank market structure, bank size, inflation, real exchange rate and GDP growth are the significant determinants of banks asset quality in Ghana. The findings have implications for both bank management and regulators in emerging economies.

  8. Water-quality impact assessment for hydropower

    International Nuclear Information System (INIS)

    Daniil, E.I.; Gulliver, J.; Thene, J.R.

    1991-01-01

    A methodology to assess the impact of a hydropower facility on downstream water quality is described. Negative impacts can result from the substitution of discharges aerated over a spillway with minimally aerated turbine discharges that are often withdrawn from lower reservoir levels, where dissolved oxygen (DO) is typically low. Three case studies illustrate the proposed method and problems that can be encountered. Historic data are used to establish the probability of low-dissolved-oxygen occurrences. Synoptic surveys, combined with downstream monitoring, give an overall picture of the water-quality dynamics in the river and the reservoir. Spillway aeration is determined through measurements and adjusted for temperature. Theoretical computations of selective withdrawal are sensitive to boundary conditions, such as the location of the outlet-relative to the reservoir bottom, but withdrawal from the different layers is estimated from measured upstream and downstream temperatures and dissolved-oxygen profiles. Based on field measurements, the downstream water quality under hydropower operation is predicted. Improving selective withdrawal characteristics or diverting part of the flow over the spillway provided cost-effective mitigation solutions for small hydropower facilities (less than 15 MW) because of the low capital investment required

  9. Water Quality Assessment and Total Maximum Daily Loads Information (ATTAINS)

    Data.gov (United States)

    U.S. Environmental Protection Agency — The Water Quality Assessment TMDL Tracking And Implementation System (ATTAINS) stores and tracks state water quality assessment decisions, Total Maximum Daily Loads...

  10. Antecedents of big data quality : An empirical examination in financial service organizations

    NARCIS (Netherlands)

    Haryadi, Adiska Fardani; Hulstijn, Joris; Wahyudi, A.; van der Voort, H.G.; Janssen, M.F.W.H.A.

    Big data has been acknowledged for its enormous potential. In contrast to the potential, in a recent survey more than half of financial service organizations reported that big data has not delivered the expected value. One of the main reasons for this is related to data quality. The objective of

  11. Antecedents of big data quality : An empirical examination in financial service organizations

    NARCIS (Netherlands)

    Fardani Haryadi, Adiska; Janssen, Marijn; Hulstijn, Joris; van der Voort, Haiko; Wahyudi, Agung

    2016-01-01

    Big data has been acknowledged for its enormous potential. In contrast to the potential, in a recent survey more than half of financial service organizations reported that big data has not delivered the expected value. One of the main reasons for this is related to data quality. The objective of

  12. Social Exclusion and Quality of Life: An Empirical Study from Turkey

    Science.gov (United States)

    Bayram, Nuran; Bilgel, Firat; Bilgel, Nazan Gonul

    2012-01-01

    We examine the perception of social exclusion and quality of life and their interactions among a group of Turkish citizens. For this purpose we used the social exclusion scale developed by Jehoel-Gijsbers and Vrooman and the WHOQOL-BREF scale. The study group consists of 2,493 participants who are residents of a city in Turkey. Our study was based…

  13. Comparison of empirical and numerical methods for the assessment of coastal vulnerability to erosion

    Science.gov (United States)

    Kokkinos, Dimitris; Prinos, Panagiotis

    2017-04-01

    Assessing the vulnerability to erosion is an important step in order to identify the prone areas and propose an adaptation policy to climate change in coastal areas. In this paper two coastal areas at the Northern part of the Aegean Sea are selected to examine their vulnerability to erosion. The first case is Lesbos Island where the most common feature is pocket beaches and the second one is the coast of Thrace composed by long sandy beaches. In both case studies, the same simplified methodology proposed by Mendoza and Jimenez (2009) is used, which links the vulnerability to erosion with morphodynamic parameters such as beach retreat and beach width. The key parameter for the vulnerability assessment is the beach retreat. For its calculation two different approaches are used and compared. The first approach divides the eroded volume with the eroded depth and it is based on an empirical formula, derived for the Greek seas from the CCSEAWAVS project (Kokkinos et al, 2014), which links the eroded volume with JA parameter, a beach erosion predictor proposed by Jimenez (1993). The sediment fall velocity, the beach slope and the wave characteristics are the only necessary parameters to calculate JA. The second approach is based on the results derived from the numerical model Xbeach (Roelvink et al., 2009), which is an open source, state-of the-art, two-dimensional model including the hydrodynamic processes of short and long wave transformation, wave-induced setup, overwash, inundation, as well as the morphodynamic processes of bed load and suspended sediment transport, dune face avalanching, bed update and breaching. The results indicate that the area of Thrace is very prone to erosion at the eastern and western part of the study area, while the Island of Lesbos appears to have very low vulnerability. The application of this methodology with the two different approaches aims to generate useful information about the vulnerability to erosion, to examine the reliability of

  14. Towards web documents quality assessment for digital humanities scholars

    NARCIS (Netherlands)

    Ceolin, D.; Noordegraaf, Julia; Aroyo, L.M.; van Son, C.M.; Nejdl, Wolfgang; Hall, Wendy; Parigi, Paolo; Staab, Steffen

    2016-01-01

    We present a framework for assessing the quality of Web documents, and a baseline of three quality dimensions: trustworthiness, objectivity and basic scholarly quality. Assessing Web document quality is a "deep data" problem necessitating approaches to handle both data size and complexity.

  15. Gearing service quality into public and private hospitals in small islands: empirical evidence from Cyprus.

    Science.gov (United States)

    Arasli, Huseyin; Ekiz, Erdogan Haktan; Katircioglu, Salih Turan

    2008-01-01

    The purpose of this research is to develop and compare some determinants of service quality in both the public and private hospitals of Northern Cyprus. There is considerable lack of literature with respect to service quality in public and private hospitals. Randomly, 454 respondents, who have recently benefited from hospital services in Famagusta, were selected to answer a modified version of the SERVQUAL Instrument. The instrument contained both service expectations and perceptions questions. This study identifies six factors regarding the service quality as perceived in both public and private Northern Cyprus hospitals. These are: empathy, giving priority to the inpatients needs, relationships between staff and patients, professionalism of staff, food and the physical environment. Research results revealed that the various expectations of inpatients have not been met in either the public or the private hospitals At the micro level, the lack of management commitment to service quality in both hospital settings leads doctors and nurses to expend less effort increasing or improving inpatient satisfaction. Hospital managers should also satisfy their employees, since job satisfaction leads to customer satisfaction and loyalty. Additionally, hospital administrations need to gather systematic feedback from their inpatients, establish visible and transparent complaint procedures so that inpatients' complaints can be addressed effectively and efficiently. The hospitals need to organize training sessions based on the critical importance of service quality and the crucial role of inpatient satisfaction in the health care industry. Future studies should include the remaining regions in Cyprus in order to increase research findings' generalizability. Additionally, including other dimensions such as hospital processes and discharge management and co-ordination may provide further insights into understanding inpatients' perceptions and intentions.

  16. Empirical models of demand for out-patient physician services and their relevance to the assessment of patient payment policies: a critical review of the literature.

    Science.gov (United States)

    Skriabikova, Olga; Pavlova, Milena; Groot, Wim

    2010-06-01

    This paper reviews the existing empirical micro-level models of demand for out-patient physician services where the size of patient payment is included either directly as an independent variable (when a flat-rate co-payment fee) or indirectly as a level of deductibles and/or co-insurance defined by the insurance coverage. The paper also discusses the relevance of these models for the assessment of patient payment policies. For this purpose, a systematic literature review is carried out. In total, 46 relevant publications were identified. These publications are classified into categories based on their general approach to demand modeling, specifications of data collection, data analysis, and main empirical findings. The analysis indicates a rising research interest in the empirical micro-level models of demand for out-patient physician services that incorporate the size of patient payment. Overall, the size of patient payments, consumer socio-economic and demographic features, and quality of services provided emerge as important determinants of demand for out-patient physician services. However, there is a great variety in the modeling approaches and inconsistencies in the findings regarding the impact of price on demand for out-patient physician services. Hitherto, the empirical research fails to offer policy-makers a clear strategy on how to develop a country-specific model of demand for out-patient physician services suitable for the assessment of patient payment policies in their countries. In particular, theoretically important factors, such as provider behavior, consumer attitudes, experience and culture, and informal patient payments, are not considered. Although we recognize that it is difficult to measure these factors and to incorporate them in the demand models, it is apparent that there is a gap in research for the construction of effective patient payment schemes.

  17. Empirical Models of Demand for Out-Patient Physician Services and Their Relevance to the Assessment of Patient Payment Policies: A Critical Review of the Literature

    Directory of Open Access Journals (Sweden)

    Olga Skriabikova

    2010-06-01

    Full Text Available This paper reviews the existing empirical micro-level models of demand for out-patient physician services where the size of patient payment is included either directly as an independent variable (when a flat-rate co-payment fee or indirectly as a level of deductibles and/or co-insurance defined by the insurance coverage. The paper also discusses the relevance of these models for the assessment of patient payment policies. For this purpose, a systematic literature review is carried out. In total, 46 relevant publications were identified. These publications are classified into categories based on their general approach to demand modeling, specifications of data collection, data analysis, and main empirical findings. The analysis indicates a rising research interest in the empirical micro-level models of demand for out-patient physician services that incorporate the size of patient payment. Overall, the size of patient payments, consumer socio-economic and demographic features, and quality of services provided emerge as important determinants of demand for out-patient physician services. However, there is a great variety in the modeling approaches and inconsistencies in the findings regarding the impact of price on demand for out-patient physician services. Hitherto, the empirical research fails to offer policy-makers a clear strategy on how to develop a country-specific model of demand for out-patient physician services suitable for the assessment of patient payment policies in their countries. In particular, theoretically important factors, such as provider behavior, consumer attitudes, experience and culture, and informal patient payments, are not considered. Although we recognize that it is difficult to measure these factors and to incorporate them in the demand models, it is apparent that there is a gap in research for the construction of effective patient payment schemes.

  18. An Empirical Assessment of Social Unrest Dynamics and State Response in Eurasian Countries

    Directory of Open Access Journals (Sweden)

    Gonzalo de Cadenas-Santiago

    2015-08-01

    Full Text Available This paper shows an empirical assessment of social unrest dynamics in the Eurasian countries. We use a big database of social events (GDELT to build up several real time indexes of social unrest escalation by social agents divided in several stages consistent with the Unrest Lifecycle Theory (vindication, protest and conflict and alternatives measures of state response (repression and cooperation. We build a Vector Autoregressive (VAR model to analyse the unrest dynamic cycle of social agents and state response. Our results show that Eurasia is a fairly volatile region in what shock-generation and inertia relates. Social reactivity is also relevant but we find that this is stronger at the initial stages of unrest while it decays as the intensity of shocks increases. Repressive state response is a fact but it decays too in intensity as the conflict escalates along the unrest cycle, falling even into an accommodative mode. We attribute this behaviour to the limited state enforcing ability of among other things. Unrest and government action are not homogenous across the region, West and Central Eurasia are more prone to conflict escalation and their enforcing ability of the state is also lower. This gives an insight were prevalent unrest theories such as unrest lifecycle; deterrence and backslash seem more dominant. We also find traces of spill over-effects or contagion among countries who share boundaries but the intensity and sign is undefined. We compare these stylized facts against the MENA region and suggest that Eurasia carries similar though milder dynamics in all terms, volatility and reactivity of social unrest, state response and enforcing inability and contagion.

  19. Quality assessment of orthodontic radiography in children.

    Science.gov (United States)

    Pakbaznejad Esmaeili, Elmira; Ekholm, Marja; Haukka, Jari; Waltimo-Sirén, Janna

    2016-02-01

    Numbers of dental panoramic tomographs (DPTs) and lateral cephalometric radiographs (LCRs) outweigh other radiographic examinations in 7- to 12-year-old Finns. Orthodontists and general practitioners (GPs) involved in orthodontics hold therefore the highest responsibility of the exposure of children to ionising radiation with its risks. Against this background, lack of reports on the quality of orthodontic radiography is surprising. The purpose of our study was to shed some light and draw the awareness of the orthodontic community on the subject by analyzing the quality of orthodontic radiography in Oral Healthcare Department of City of Helsinki, in the capital of Finland. We analyzed randomly selected 241 patient files with DPTs and 118 patient files with LCRs of 7- to 12-year-olds for the indications of radiography, quality of referrals, status of interpretation, and number of failed radiographs. The majority of DPTs (95%) and all LCRs had been ordered for orthodontic reasons. Of the DPTs, 60% were ordered by GPs, and of the LCRs, 64% by orthodontists. The referrals were adequate for most DPTs (78%) and LCRs (73%), orthodontists being responsible for the majority of inadequate referrals. Of the DPTs, 80% had been interpreted. Of the LCRs, 65% lacked interpretation, but 67% had been analysed cephalometrically. Failed radiographs, leading to repeated exposure, were found in 2-3%. The quality assessment revealed that orthodontic radiography may not completely fulfill the criteria of good practice. Our results stress further need of continuing education in radiation protection among both orthodontists and GPs involved in orthodontics. © The Author 2015. Published by Oxford University Press on behalf of the European Orthodontic Society. All rights reserved. For permissions, please email: journals.permissions@oup.com.

  20. Evaluating how variants of floristic quality assessment indicate wetland condition.

    Science.gov (United States)

    Kutcher, Thomas E; Forrester, Graham E

    2018-03-28

    Biological indicators are useful tools for the assessment of ecosystem condition. Multi-metric and multi-taxa indicators may respond to a broader range of disturbances than simpler indicators, but their complexity can make them difficult to interpret, which is critical to indicator utility for ecosystem management. Floristic Quality Assessment (FQA) is an example of a biological assessment approach that has been widely tested for indicating freshwater wetland condition, but less attention has been given to clarifying the factors controlling its response. FQA quantifies the aggregate of vascular plant species tolerance to habitat degradation (conservatism), and model variants have incorporated species richness, abundance, and indigenity (native or non-native). To assess bias, we tested FQA variants in open-canopy freshwater wetlands against three independent reference measures, using practical vegetation sampling methods. FQA variants incorporating species richness did not correlate with our reference measures and were influenced by wetland size and hydrogeomorphic class. In contrast, FQA variants lacking measures of species richness responded linearly to reference measures quantifying individual and aggregate stresses, suggesting a broad response to cumulative degradation. FQA variants incorporating non-native species, and a variant additionally incorporating relative species abundance, improved performance over using only native species. We relate our empirical findings to ecological theory to clarify the functional properties and implications of the FQA variants. Our analysis indicates that (1) aggregate conservatism reliably declines with increased disturbance; (2) species richness has varying relationships with disturbance and increases with site area, confounding FQA response; and (3) non-native species signal human disturbance. We propose that incorporating species abundance can improve FQA site-level relevance with little extra sampling effort. Using our

  1. Assessment Quality in Tertiary Education: An Integrative Literature Review

    NARCIS (Netherlands)

    Gerritsen-van Leeuwenkamp, Karin; Joosten-ten Brinke, Desirée; Kester, Liesbeth

    2018-01-01

    In tertiary education, inferior assessment quality is a problem that has serious consequences for students, teachers, government, and society. A lack of a clear and overarching conceptualization of assessment quality can cause difficulties in guaranteeing assessment quality in practice. Thus, the

  2. The relationship between intellectual capital quality and corporate performance: An empirical study of Russian and European companies

    Directory of Open Access Journals (Sweden)

    Shakina Elena

    2012-01-01

    Full Text Available The purpose of this research is to develop cost-effectiveness tools for the analysis of company’s intellectual resources, in terms of resource-based and value-based approaches. Our study focuses on the evaluation of intellectual capital methods to discover the drivers of company growth. We suppose that the potential effectiveness of intellectual capital resources varies according to different institutional factors. Several statistical methods will be used for the empirical issues in this research, including common cross-sectional and panel data analysis, and the instrumental variables method. The database collected for this purpose will consist of financial and economic indicators underlying the intellectual capital evaluation, such as strategic performance indicators (EVA© and FGV©. The dataset includes companies from different countries and industries according to the Knowledge Economy Index of the World Bank. The industries presented in the dataset are selected according to the predominance of several intellectual capital elements. The database includes financial services, wholesale and retail trade, machinery and equipment manufacture, the chemical industry, and transport and communications. As a result of the empirical research, we expect to answer the following questions: • Is there a close relationship between intellectual capital quality and company performance? • What are the external and internal factors affecting this relationship? (country, industry, company size, market dynamics, etc.

  3. SERVICE QUALITY MEASUREMENT AND DEMAND FOR INSURANCE: AN EMPIRICAL STUDY FROM NIGERIAN INSURANCE INDUSTRY

    Directory of Open Access Journals (Sweden)

    Abass, OlufemiAdebowale

    2016-11-01

    Full Text Available Insurance provides financial protection to the insured, though; its acceptance by Nigerian insuring public is still low. This can sharply be traced to low awareness of insurance service. More importantly, quality of service to the few who embraced it had been low. Therefore, insuring public perceives insurance service as defective because customers’ expectations are not met. The objective of this research is to find out whether application of service quality measurement will drive demand for insurance products. Hypothesis was tested to find out whether SERVQUAL measurement is not significantly related to demand for insurance products in Nigeria. The study adopts descriptive research design; hypothesis was tested using regression analysis. The study reveals that there is a significant relationship between application of SERVQUAL measurement and demand for insurance. It is recommended that insurance companies operating in Nigeria should adopt SERVQUAL measurement which will further increase customer retention and loyalty.

  4. An empirical survey to investigate quality of men's clothing market using QFD method

    Directory of Open Access Journals (Sweden)

    Samira Golshan

    2012-08-01

    Full Text Available One of the most important techniques on improving customer satisfaction in clothing and textile industry is to increase the quality of goods and services. There are literally different methods for detecting important items influencing clothing products and the proposed model of this paper uses quality function deployment (QFD. The proposed model of this paper designs and distributes a questionnaire among some experts to detect necessary factors and using house of quality we determine the most important factors impacting the customer's clothing selection. The proposed study of this paper focuses men who are 15 to 45 years old living in Yazd/Iran. The brand we do the investigation sells the products in three shopping centers located in this city. We have distributed 100 questionnaires and collected 65 properly filled ones. Based on the results of our survey, suitable design, printing and packaging specifications, necessary requirements, optimization of production planning and appropriate sewing machine setting are considered as the most important characteristics influencing the purchase of a clothing products.

  5. An empirical inquiry into the objective assessment and the top management perception of the need for organisational restructuring in large Croatian enterprises

    Directory of Open Access Journals (Sweden)

    Nikša Alfirević

    2000-01-01

    Full Text Available On the basis of the extensive empirical research, this paper examines the objective need for organisational restructuring in large Croatian enterprises versus the managerial perceptions of the same issue. Building upon the analysis of the economic performance of the Croatian large enterprise sector and the assessment of the organisational design quality in large Croatian enterprises, the urgency for further organisational restructuring is established. On the other hand, the major restructuring motives at the top management level are also examined, leading to the conclusion that both the perceived quality of the organisational design, as well as the perceived gap between the enterprise competitive ability and the threats from the business environment at the top management level do not support the further restructuring of the Croatian large enterprise sector.

  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. PMID:25296159

  7. 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.

  8. A simple semi-empirical technique for apportioning the impact of roadways on air quality in an urban neighbourhood

    Science.gov (United States)

    Elangasinghe, M. A.; Dirks, K. N.; Singhal, N.; Costello, S. B.; Longley, I.; Salmond, J. A.

    2014-02-01

    Air pollution from the transport sector has a marked effect on human health, so isolating the pollutant contribution from a roadway is important in understanding its impact on the local neighbourhood. This paper proposes a novel technique based on a semi-empirical air pollution model to quantify the impact from a roadway on the air quality of a local neighbourhood using ambient records of a single air pollution monitor. We demonstrate the proposed technique using a case study, in which we quantify the contribution from a major highway with respect to the local background concentration in Auckland, New Zealand. Comparing the diurnal variation of the model-separated background contribution with real measurements from a site upwind of the highway shows that the model estimates are reliable. Amongst all of the pollutants considered, the best estimations of the background were achieved for nitrogen oxides. Although the multi-pronged approach worked well for predominantly vehicle-related pollutants, it could not be used effectively to isolate emissions of PM10 due to the complex and less predictable influence of natural sources (such as marine aerosols). The proposed approach is useful in situations where ambient records from an upwind background station are not available (as required by other techniques) and is potentially transferable to situations such as intersections and arterial roads. Applying this technique to longer time series could help to understand the changes in pollutant concentrations from the road and background sources for different emission scenarios, for different years or seasons. Modelling results also show the potential of such a hybrid semi-empirical models to contribute to our understanding of the physical parameters determining air quality and to validate emissions inventory data.

  9. Material quality assurance risk assessment : [summary].

    Science.gov (United States)

    2013-01-01

    With the shift from quality control (QC) of materials and placement techniques : to quality assurance (QA) and acceptance over the years, the role of the Office : of Materials Technology (OMT) has been shifting towards assurance of : material quality...

  10. On the effects of search attributes on price variability: An empirical investigation on quality wines

    OpenAIRE

    Seccia Antonio; Carlucci Domenico; Santeramo Fabio Gaetano; Sarnari Tiziana; Nardone Gianluca

    2017-01-01

    The choice of a bottle of wine is affected by the presence of attributes that are searched by consumers and can be evaluated before the purchase. The aim of the paper is to analyze the effect of some search attributes on wine price variability applying the Hedonic Price Model. It allows explaining how the price of wine varies depending on its main quality attributes. The analysis has been based on a sample of wines made in Puglia, Italian region characterized by a tradition in wine production...

  11. Quality assessment of pacemaker implantations in Denmark

    DEFF Research Database (Denmark)

    Møller, M; Arnsbo, P; Asklund, Mogens

    2002-01-01

    AIMS: Quality assessment of therapeutic procedures is essential to insure a cost-effective health care system. Pacemaker implantation is a common procedure with more than 500,000 implantations world-wide per year, but the general complication rate is not well described. We studied procedure related...... complications for all implantations performed in an entire nation over a 3-year period. METHODS AND RESULTS: A prospective study of complications related to 99% of the 5648 primary pacemaker implantations performed in the 12 Danish pacemaker centres in 1997-1999 was carried out. Overall 76% of the patients...... received a physiological pacemaker system and 91% received the optimal pacing mode according to international guidelines. Perioperative complications requiring reoperation were: haematoma 0.3%, atrial lead related 1.9%, ventricular lead related 1.7%. Late complications requiring reoperation were: infection...

  12. Quality assessment of clinical computed tomography

    Science.gov (United States)

    Berndt, Dorothea; Luckow, Marlen; Lambrecht, J. Thomas; Beckmann, Felix; Müller, Bert

    2008-08-01

    Three-dimensional images are vital for the diagnosis in dentistry and cranio-maxillofacial surgery. Artifacts caused by highly absorbing components such as metallic implants, however, limit the value of the tomograms. The dominant artifacts observed are blowout and streaks. Investigating the artifacts generated by metallic implants in a pig jaw, the data acquisition for the patients in dentistry should be optimized in a quantitative manner. A freshly explanted pig jaw including related soft-tissues served as a model system. Images were recorded varying the accelerating voltage and the beam current. The comparison with multi-slice and micro computed tomography (CT) helps to validate the approach with the dental CT system (3D-Accuitomo, Morita, Japan). The data are rigidly registered to comparatively quantify their quality. The micro CT data provide a reasonable standard for quantitative data assessment of clinical CT.

  13. External quality assessment schemes for toxicology.

    Science.gov (United States)

    Wilson, John

    2002-08-14

    A variety of external quality assurance (EQA) schemes monitor quantitative performance for routine biochemical analysis of agents such as paracetamol, salicylate, ethanol and carboxyhaemoglobin. Their usefulness for toxicologists can be lessened where the concentrations monitored do not extend fully into the toxic range or where the matrix is synthetic, of animal origin or serum as opposed to whole human blood. A scheme for quantitative determinations of a wider range of toxicological analytes such as opioids, benzodiazepines and tricyclics in human blood has been piloted by the United Kingdom National External Quality Assessment Scheme (UKNEQAS). Specialist schemes are available for drugs of abuse testing in urine and for hair analysis. Whilst these programmes provide much useful information on the performance of analytical techniques, they fail to monitor the integrated processes that are needed in investigation of toxicological cases. In practice, both qualitative and quantitative tests are used in combination with case information to guide the evaluation of the samples and to develop an interpretation of the analytical findings that is used to provide clinical or forensic advice. EQA programs that combine the analytical and interpretative aspects of case studies are available from EQA providers such as UKNEQAS and the Dutch KKGT program (Stichting Kwaliteitsbewaking Klinische Geneesmiddelanalyse en Toxicologie).

  14. QUAST: quality assessment tool for genome assemblies.

    Science.gov (United States)

    Gurevich, Alexey; Saveliev, Vladislav; Vyahhi, Nikolay; Tesler, Glenn

    2013-04-15

    Limitations of genome sequencing techniques have led to dozens of assembly algorithms, none of which is perfect. A number of methods for comparing assemblers have been developed, but none is yet a recognized benchmark. Further, most existing methods for comparing assemblies are only applicable to new assemblies of finished genomes; the problem of evaluating assemblies of previously unsequenced species has not been adequately considered. Here, we present QUAST-a quality assessment tool for evaluating and comparing genome assemblies. This tool improves on leading assembly comparison software with new ideas and quality metrics. QUAST can evaluate assemblies both with a reference genome, as well as without a reference. QUAST produces many reports, summary tables and plots to help scientists in their research and in their publications. In this study, we used QUAST to compare several genome assemblers on three datasets. QUAST tables and plots for all of them are available in the Supplementary Material, and interactive versions of these reports are on the QUAST website. http://bioinf.spbau.ru/quast . Supplementary data are available at Bioinformatics online.

  15. Innovative technique for assessment of groundwater quality

    International Nuclear Information System (INIS)

    Ahmad, N.; Ahmad, M.; Sajjad, M.I.

    2001-07-01

    Groundwater quality of a part of Chaj Doab has been assessed with innovative techniques which are not reported in literature. The concept of triangular coordinates is modified by multi-rectangular ones for the classification of major cations and anions analysed in the ground water. A Multi-Rectangular Diagram (MRD) has been developed with the combination of rectangular coordinates by virtue of which milli-equivalent per liter percentages (meq/1%) of major cations and anions could be classified into different categories more efficiently as compared to classical trilinear diagrams. Both Piper diagram and MRD are used for the assessment of 259 data sets analysed from ground water of Chaj Doab area, Pakistan. The differentiated ground water types with MRD in the study area are calcium bicarbonate, magnesium bicarbonate, sodium bicarbonate and sodium sulfate. Sodium bicarbonate type emerges as the most abundant type of ground water in the study area. A map showing spatial variation of groundwater quality has been constructed with the help of MRD. This map shows that, in the vicinity of rivers Chenab and Jhelum, calcium bicarbonate type of waters occur while the central area is mainly covered by sodium bicarbonate dominant waters. Groundwaters near the upper Jhelum canal are dominant in sodium sulfate. An important relation between calcium and sodium is proposed which explains the movement history of groundwater in the aquifer. Hydrogeochemical processes have been evaluated with new methods. Ion exchange between calcium and sodium, precipitation of calcium bicarbonate and dissolution of rock forming minerals are the major delineated hydrogeochemical processes. (author)

  16. Video quality assessment for web content mirroring

    Science.gov (United States)

    He, Ye; Fei, Kevin; Fernandez, Gustavo A.; Delp, Edward J.

    2014-03-01

    Due to the increasing user expectation on watching experience, moving web high quality video streaming content from the small screen in mobile devices to the larger TV screen has become popular. It is crucial to develop video quality metrics to measure the quality change for various devices or network conditions. In this paper, we propose an automated scoring system to quantify user satisfaction. We compare the quality of local videos with the videos transmitted to a TV. Four video quality metrics, namely Image Quality, Rendering Quality, Freeze Time Ratio and Rate of Freeze Events are used to measure video quality change during web content mirroring. To measure image quality and rendering quality, we compare the matched frames between the source video and the destination video using barcode tools. Freeze time ratio and rate of freeze events are measured after extracting video timestamps. Several user studies are conducted to evaluate the impact of each objective video quality metric on the subjective user watching experience.

  17. Assessment Quality and Practices in Secondary PE in the Netherlands

    Science.gov (United States)

    Borghouts, Lars B.; Slingerland, Menno; Haerens, Leen

    2017-01-01

    Background: Assessment can have various functions, and is an important impetus for student learning. For assessment to be effective, it should be aligned with curriculum goals and of sufficient quality. Although it has been suggested that assessment quality in physical education (PE) is suboptimal, research into actual assessment practices has…

  18. An Empirical Assessment of an Activity to Teach Sensory Change in Aging

    Science.gov (United States)

    Dickinson, Paige E.; Schwarzmueller, April; Martin, Bret

    2014-01-01

    This study empirically tested the effectiveness of a brief, inexpensive aging simulation activity to educate traditional-aged students about sensory declines and their potential causes in older adulthood development. Students in a life-span development course wore specific props (e.g., thick gloves, earplugs, and obscured glasses) to simulate…

  19. An Efficiency Assessment among Empirically Defined Labor Markets for Determining Pay for Teachers

    Science.gov (United States)

    Tran, Henry; Young, I. Phillip

    2013-01-01

    Fundamental to updating a fixed-rate salary schedule for teachers is the reliance on a relevant labor market containing comparisons to other school districts--that is, object school districts, which can be chosen from a policy or empirical/efficiency perspective. As such, four relevant markets having roots in neoclassical economic…

  20. Use of combined biogeochemical model approaches and empirical data to assess critical loads of nitrogen

    Science.gov (United States)

    Mark Fenn; Charles Driscoll; Quingtao Zhou; Leela Rao; Thomas Meixner; Edith Allen; Fengming Yuan; Timothy Sullivan

    2015-01-01

    Empirical and dynamic biogeochemical modelling are complementary approaches for determining the critical load (CL) of atmospheric nitrogen (N) or other constituent deposition that an ecosystem can tolerate without causing ecological harm. The greatest benefits are obtained when these approaches are used in combination. Confounding environmental factors can complicate...

  1. An empirical assessment of forest floor carbon stock components across the United States

    Science.gov (United States)

    Christopher W. Woodall; Charles H. Perry; James A. Westfall

    2012-01-01

    Despite its prevalent reporting in regional/national greenhouse gas inventories (NGHGI), forest floor (FF) carbon (C) stocks (including litter, humus, and fine woody debris [FWD]) have not been empirically measured using a consistent approach across forests of the US. The goal of this study was to use the first national field inventory of litter and humic layer depths...

  2. Audiovisual quality assessment and prediction for videotelephony

    CERN Document Server

    Belmudez, Benjamin

    2015-01-01

    The work presented in this book focuses on modeling audiovisual quality as perceived by the users of IP-based solutions for video communication like videotelephony. It also extends the current framework for the parametric prediction of audiovisual call quality. The book addresses several aspects related to the quality perception of entire video calls, namely, the quality estimation of the single audio and video modalities in an interactive context, the audiovisual quality integration of these modalities and the temporal pooling of short sample-based quality scores to account for the perceptual quality impact of time-varying degradations.

  3. Research Quality Plus (RQ+) Assessment Instrument

    International Development Research Centre (IDRC) Digital Library (Canada)

    sclarke

    Facilitating research networks, research to policy linkages and access to resources. Building constituencies ... empirically warranted conclusions) and is effective, where the latter refers to use, influence, policy. 1 Studies ... key influences for each project; and (2) to understand better the performance along a certain trajectory ...

  4. On the effects of search attributes on price variability: An empirical investigation on quality wines

    Directory of Open Access Journals (Sweden)

    Seccia Antonio

    2017-01-01

    Full Text Available The choice of a bottle of wine is affected by the presence of attributes that are searched by consumers and can be evaluated before the purchase. The aim of the paper is to analyze the effect of some search attributes on wine price variability applying the Hedonic Price Model. It allows explaining how the price of wine varies depending on its main quality attributes. The analysis has been based on a sample of wines made in Puglia, Italian region characterized by a tradition in wine production and consumption. Data have been collected from a wine guidebook considering the years 2008–2013. The study provided a measure of the market value of some search attributes for wines produced in Puglia. Attributes as alcoholic content, age and score given by experts, influence price variability allowing wines to obtain a premium price, such as the most known Protected Designation of Origin (PDO and some Protected Geographical Indication (PGI. The name of the variety seems not to have high influence with the exception of less known and locally grown varieties. Results may be of interest for marketers and policy makers of wine industry. Managerial implications could refer to the importance of differentiation strategies aimed to market segmentation and to the pricing strategy. Policymakers could also find interesting hints about the influence of the different appellations and the importance of minor autochthonous grape varieties.

  5. An Empirical Investigation of the Universal Effectiveness of Quality Management Practices: A Structural Equation Modeling Approach

    Directory of Open Access Journals (Sweden)

    Young Sik Cho

    2016-05-01

    Full Text Available Institutional theory argues that the isomorphic nature of quality management (QM practices leads to similar QM implementation and performance among QM-embedded firms. However, contingency theory questions such 'universal effectiveness of QM practices'. Considering these conflicting arguments, this study tests samples from the U.S. and China to examine whether the 'universal effectiveness of QM practices’ across national boundaries actually exists. First, the confirmatory factor analysis was performed to examine the validity of the survey instruments developed in this study. Then, the hypotheses were tested using the structural equation modeling (SEM analysis. The SEM test results indicated that the positive effect of behavioral QM on firm performance was more significant in the U.S. sample than in the China sample. The test results also presented that the relative effect of behavioral QM versus technical QM on firm performance was noticeably different in service firms, according to national economic maturity. The study’s findings demonstrated that a firm's contingency factors, such as national economic maturity and industry type, could result in the heterogeneous implementation of the firm’s TQM program; consequently, the findings weakened the 'universal effectiveness of QM practices'.

  6. Balancing Attended and Global Stimuli in Perceived Video Quality Assessment

    DEFF Research Database (Denmark)

    You, Junyong; Korhonen, Jari; Perkis, Andrew

    2011-01-01

    The visual attention mechanism plays a key role in the human perception system and it has a significant impact on our assessment of perceived video quality. In spite of receiving less attention from the viewers, unattended stimuli can still contribute to the understanding of the visual content....... This paper proposes a quality model based on the late attention selection theory, assuming that the video quality is perceived via two mechanisms: global and local quality assessment. First we model several visual features influencing the visual attention in quality assessment scenarios to derive...... an attention map using appropriate fusion techniques. The global quality assessment as based on the assumption that viewers allocate their attention equally to the entire visual scene, is modeled by four carefully designed quality features. By employing these same quality features, the local quality model...

  7. Quality Assessment of Compressed Video for Automatic License Plate Recognition

    DEFF Research Database (Denmark)

    Ukhanova, Ann; Støttrup-Andersen, Jesper; Forchhammer, Søren

    2014-01-01

    Definition of video quality requirements for video surveillance poses new questions in the area of quality assessment. This paper presents a quality assessment experiment for an automatic license plate recognition scenario. We explore the influence of the compression by H.264/AVC and H.265/HEVC...

  8. Monitoring and Assessment of Youshui River Water Quality in Youyang

    Science.gov (United States)

    Wang, Xue-qin; Wen, Juan; Chen, Ping-hua; Liu, Na-na

    2018-02-01

    By monitoring the water quality of Youshui River from January 2016 to December 2016, according to the indicator grading and the assessment standard of water quality, the formulas for 3 types water quality indexes are established. These 3 types water quality indexes, the single indicator index Ai, single moment index Ak and the comprehensive water quality index A, were used to quantitatively evaluate the quality of single indicator, the water quality and the change of water quality with time. The results show that, both total phosphorus and fecal coliform indicators exceeded the standard, while the other 16 indicators measured up to the standard. The water quality index of Youshui River is 0.93 and the grade of water quality comprehensive assessment is level 2, which indicated that the water quality of Youshui River is good, and there is room for further improvement. To this end, several protection measures for Youshui River environmental management and pollution treatment are proposed.

  9. Assessing water quality in Lake Naivasha

    NARCIS (Netherlands)

    Ndungu, J.N.

    2014-01-01

    Water quality in aquatic systems is important because it maintains the ecological processes that support biodiversity. However, declining water quality due to environmental perturbations threatens the stability of the biotic integrity and therefore hinders the ecosystem services and functions of

  10. Quality assessment for online iris images

    CSIR Research Space (South Africa)

    Makinana, S

    2015-01-01

    Full Text Available Iris recognition systems have attracted much attention for their uniqueness, stability and reliability. However, performance of this system depends on quality of iris image. Therefore there is a need to select good quality images before features can...

  11. ASSESSMENT OF WATER QUALITY INDEX FOR GROUNDWATER ...

    African Journals Online (AJOL)

    2013-12-31

    COD) and metals like Copper (Cu), Lead (Pb) and Manganese (Mn). The WQI for Valsad district suggests that the groundwater quality is marginal. Key Words: Ground Water, Water quality index, Valsad District, Gujarat. 1.

  12. Traditional Arabic & Islamic medicine: validation and empirical assessment of a conceptual model in Qatar.

    Science.gov (United States)

    AlRawi, Sara N; Khidir, Amal; Elnashar, Maha S; Abdelrahim, Huda A; Killawi, Amal K; Hammoud, Maya M; Fetters, Michael D

    2017-03-14

    Evidence indicates traditional medicine is no longer only used for the healthcare of the poor, its prevalence is also increasing in countries where allopathic medicine is predominant in the healthcare system. While these healing practices have been utilized for thousands of years in the Arabian Gulf, only recently has a theoretical model been developed illustrating the linkages and components of such practices articulated as Traditional Arabic & Islamic Medicine (TAIM). Despite previous theoretical work presenting development of the TAIM model, empirical support has been lacking. The objective of this research is to provide empirical support for the TAIM model and illustrate real world applicability. Using an ethnographic approach, we recruited 84 individuals (43 women and 41 men) who were speakers of one of four common languages in Qatar; Arabic, English, Hindi, and Urdu, Through in-depth interviews, we sought confirming and disconfirming evidence of the model components, namely, health practices, beliefs and philosophy to treat, diagnose, and prevent illnesses and/or maintain well-being, as well as patterns of communication about their TAIM practices with their allopathic providers. Based on our analysis, we find empirical support for all elements of the TAIM model. Participants in this research, visitors to major healthcare centers, mentioned using all elements of the TAIM model: herbal medicines, spiritual therapies, dietary practices, mind-body methods, and manual techniques, applied singularly or in combination. Participants had varying levels of comfort sharing information about TAIM practices with allopathic practitioners. These findings confirm an empirical basis for the elements of the TAIM model. Three elements, namely, spiritual healing, herbal medicine, and dietary practices, were most commonly found. Future research should examine the prevalence of TAIM element use, how it differs among various populations, and its impact on health.

  13. Food purchase patterns: empirical identification and analysis of their association with diet quality, socio-economic factors, and attitudes.

    Science.gov (United States)

    Thiele, Silke; Peltner, Jonas; Richter, Almut; Mensink, Gert B M

    2017-10-12

    Empirically derived food purchase patterns provide information about which combinations of foods were purchased from households. The objective of this study was to identify what kinds of patterns exist, which level of diet quality they represent and which factors are associated with the patterns. The study made use of representative German consumption data in which approximately 12 million food purchases from 13,125 households are recorded. In accordance with healthy diet criteria the food purchases were assigned to 18 food groups of the German Food Pyramid. Based on these groups a factor analysis with a principal component technique was applied to identify food patterns. For these patterns nutrient and energy densities were examined. Using regression analysis, associations between pattern scores and socio-economic as well as attitude variables, reflecting personal statements about healthy eating, were analyzed. In total, three food purchase patterns could be identified: a natural, a processed and a traditional one. The first one was characterized by a higher purchasing of natural foods, the second by an increased purchasing of processed foods and the third by a meat-oriented diet. In each pattern there were specific diet quality criteria that could be improved whereas others were in line with actual dietary guidelines. In addition to socio-demographic factors, attitudes were significantly associated with the purchase patterns. The findings of this study are interesting from a public health perspective, as it can be assumed that measures focusing on specific aspects of diet quality are more promising than general ones. However, it is a major challenge to identify the population groups with their specific needs of improvement. As the patterns were associated with both socio-economic and attitude variables these grouping criteria could be used to define target groups.

  14. Food quality assessment by NIR hyperspectral imaging

    Science.gov (United States)

    Whitworth, Martin B.; Millar, Samuel J.; Chau, Astor

    2010-04-01

    Near infrared reflectance (NIR) spectroscopy is well established in the food industry for rapid compositional analysis of bulk samples. NIR hyperspectral imaging provides new opportunities to measure the spatial distribution of components such as moisture and fat, and to identify and measure specific regions of composite samples. An NIR hyperspectral imaging system has been constructed for food research applications, incorporating a SWIR camera with a cooled 14 bit HgCdTe detector and N25E spectrograph (Specim Ltd, Finland). Samples are scanned in a pushbroom mode using a motorised stage. The system has a spectral resolution of 256 pixels covering a range of 970-2500 nm and a spatial resolution of 320 pixels covering a swathe adjustable from 8 to 300 mm. Images are acquired at a rate of up to 100 lines s-1, enabling samples to be scanned within a few seconds. Data are captured using SpectralCube software (Specim) and analysed using ENVI and IDL (ITT Visual Information Solutions). Several food applications are presented. The strength of individual absorbance bands enables the distribution of particular components to be assessed. Examples are shown for detection of added gluten in wheat flour and to study the effect of processing conditions on fat distribution in chips/French fries. More detailed quantitative calibrations have been developed to study evolution of the moisture distribution in baguettes during storage at different humidities, to assess freshness of fish using measurements of whole cod and fillets, and for prediction of beef quality by identification and separate measurement of lean and fat regions.

  15. The ethical health lawyer: an empirical assessment of moral decision making.

    Science.gov (United States)

    Perry, Joshua E; Moore, Ilene N; Barry, Bruce; Clayton, Ellen Wright; Carrico, Amanda R

    2009-01-01

    Writing in 1999, legal ethics scholar Brad Wendel noted that "[v]ery little empirical work has been done on the moral decision making of lawyers." Indeed, since the mid-1990s, few empirical studies have attempted to explore how attorneys deliberate about ethical dilemmas they encounter in their practice. Moreover, while past research has explored some of the ethical issues confronting lawyers practicing in certain specific areas of practice, no published data exists probing the moral mind of health care lawyers. As signaled by the creation of a regular column "devoted to ethical issues arising in the practice of health law" in the Journal of Law, Medicine & Ethics, the time to address the empirical gap in the professional ethics literature is now. Accordingly, this article presents data collected from 120 health care lawyers. Presenting this population with a number of hypothetical scenarios relating to how they would respond when confronting an ethical dilemma without an obvious solution or when facing a situation in which their personal values were in tension with their professional obligations, this article represents a first step toward better understanding how lawyers who practice in health care settings understand and resolve the moral discomfort they encounter in their professional lives.

  16. The PARETO RATING Software System for the Paretoapproximation Quality Assessment in Multi-criteria Optimization Problem

    Directory of Open Access Journals (Sweden)

    S. V. Groshev

    2014-01-01

    Full Text Available We consider the task to assess the quality of Pareto set (front numerical approximation in a multi-criteria optimization (MOC problem. We mean that Pareto-approximation is obtained by means of this or that population e.g. genetic algorithm.Eventually, the purpose of work is a comparative assessment of the efficiency of population algorithms of Pareto-approximation. The great number of characteristics (indicators of the Pareto-approximation quality is developed. Therefore an assessment problem of the Paretoapproximation quality is also considered as multi-criteria (multi-indicator. There are a number of well-known software systems to solve an assessment problem of the Pareto-approximation quality in different degree. Common drawback of these systems is a lack of both the WEB INTERFACE and the support of a multi-indicator assessment of Pareto-approximation quality (though there is a support to calculate the values of a large number of these indicators. The PARETO RATING software system is urged to eliminate the specified shortcomings of known systems. As population algorithms of Pareto-approximation are, as a rule, stochastic, we consider statistical methods to assess the quality of two and more Pareto-approximations (and thereby the estimates of algorithms used to obtain these approximations as well as follows: methods based on the ranging of the specified approximations; methods based on the quality indicators; methods based on the so-called empirical functions of approachability. We give formal statement of the MOC-problem and general scheme of the population algorithms of its solution, present reviews of known indicators of Pareto-approximation quality and statistical methods for assessment of Pareto-approximation quality. We describe the system architecture and main features of its software implementation and illustrate efficiency of made algorithmic and software solutions.

  17. Attention modeling for video quality assessment

    DEFF Research Database (Denmark)

    You, Junyong; Korhonen, Jari; Perkis, Andrew

    2010-01-01

    averaged spatiotemporal pooling. The local quality is derived from visual attention modeling and quality variations over frames. Saliency, motion, and contrast information are taken into account in modeling visual attention, which is then integrated into IQMs to calculate the local quality of a video frame...

  18. assessing participation in secondary education quality enhancement

    African Journals Online (AJOL)

    PROF. BARTH EKWEME

    for low parents and communities involvement in secondary education-quality improvement. It was recommended that the quality of instruction in ... concern on standard of education hinges on the quality of instruction the children are ... NTI, 2000). This implies that teachers have a duty of helping students under their care to.

  19. Significance of system approach in health system quality assessment

    Directory of Open Access Journals (Sweden)

    Bojanka Štern

    2006-05-01

    Full Text Available Abstract: Quality is a concept that defines a value-dependent judgement about a certain object or phenomenon under consideration. Quality assessment is a process, showing the level of accordance between quality criteria of the reviewer/-s (customers, clients, stakeholders and actual attributes of products, services or systems. Quality assessment therefore always contains subjective values of the reviewer/-s. This also means, that some differences in quality assessment of dimensions, elements and processes of health system and health system as a whole are inevitable and legitimate and indicates the need for focusing essential attention to such differences in the origins of projecting of systems for quality assessment and in the management of different aspects of quality within the health system. Nevertheless, a certain degree of »common validity« of definitions, criteria, indicators and reference values (quality standards is needed to create an effective quality assessment model. The complex nature of the quality concept demands systemic, interdisciplinary/transdisciplinary approach and use of qualitative and quantitative methods of scientific work either in health sistem quality assessment or in the process of creation of health quality systems. Every health quality system modelling should also consider environmental influences upon the estimated system.

  20. Indoor Air Quality Building Education and Assessment Model Forms

    Science.gov (United States)

    The Indoor Air Quality Building Education and Assessment Model (I-BEAM) is a guidance tool designed for use by building professionals and others interested in indoor air quality in commercial buildings.

  1. Indoor Air Quality Building Education and Assessment Model

    Science.gov (United States)

    The Indoor Air Quality Building Education and Assessment Model (I-BEAM), released in 2002, is a guidance tool designed for use by building professionals and others interested in indoor air quality in commercial buildings.

  2. Assessing the Functionality of Mechanisms for Quality Assurance ...

    African Journals Online (AJOL)

    The paper further highlight the problems of quality assurance and the roles NUC, institutions Audit and Research assessment mechanisms towards quality ... design, week internal governance, loss of autonomy an academic freedom, politics, absolute dependence on government, inconsistent policies and mismanagement.

  3. Does restaurant performance meet customers' expectations? An assessment of restaurant service quality using a modified DINESERV approach

    OpenAIRE

    Marković, Suzana; Raspor, Sanja; Šegarić, Klaudio

    2010-01-01

    The purpose of this study is to determine restaurant service quality. The aims are to: (a) assess customers’ expectations and perceptions, (b) establish the significance of difference between perceived and expected service quality, (c) identify the number of dimensions for expectations and perceptions scales of modified DINESERV model, (d) test the reliability of the applied DINESERV model. The empirical research was conducted using primary data. The questionnaire is based on Stevens et al. (...

  4. Lupus anticoagulant : case-based external quality assessment

    NARCIS (Netherlands)

    van den Besselaar, A. M. H. P.; Devreese, K. M. J.; de Groot, P. G.; Castel, A.

    Aims: A model for presenting case histories with quality assessment material is to be developed for the Dutch external quality assessment (EQA) scheme for blood coagulation testing. The purpose of the present study was to assess the performance of clinical laboratories in casebased EQA using the

  5. The Challenges of Data Quality and Data Quality Assessment in the Big Data Era

    OpenAIRE

    Li Cai; Yangyong Zhu

    2015-01-01

    High-quality data are the precondition for analyzing and using big data and for guaranteeing the value of the data. Currently, comprehensive analysis and research of quality standards and quality assessment methods for big data are lacking. First, this paper summarizes reviews of data quality research. Second, this paper analyzes the data characteristics of the big data environment, presents quality challenges faced by big data, and formulates a hierarchical data quality framework from the pe...

  6. Quality assessment in higher education using the SERVQUALQ model

    OpenAIRE

    Đonlagić, Sabina; Fazlić, Samira

    2015-01-01

    Economy in Bosnia and Herzegovina is striving towards growth and increased employment and it has been proven by empirical studies worldwide that higher education contributes to socio-economic development of a country. Universities are important for generation, preservation and dissemination of knowledge in order to contribute to socio-economic benefits of a country. Higher education institutions are being pressured to improve value for their activities and providing quality higher education s...

  7. Building quality into performance and safety assessment software

    International Nuclear Information System (INIS)

    Wojciechowski, L.C.

    2011-01-01

    Quality assurance is integrated throughout the development lifecycle for performance and safety assessment software. The software used in the performance and safety assessment of a Canadian deep geological repository (DGR) follows the CSA quality assurance standard CSA-N286.7 [1], Quality Assurance of Analytical, Scientific and Design Computer Programs for Nuclear Power Plants. Quality assurance activities in this standard include tasks such as verification and inspection; however, much more is involved in producing a quality software computer program. The types of errors found with different verification methods are described. The integrated quality process ensures that defects are found and corrected as early as possible. (author)

  8. The Impact of an Epidemic Outbreak on Consumer Expenditures:An Empirical Assessment for MERS Korea

    Directory of Open Access Journals (Sweden)

    Hojin Jung

    2016-05-01

    Full Text Available In this paper, we investigate the effect of an epidemic outbreak on consumer expenditures. In light of scanner panel data on consumers’ debit and credit card transactions, we present empirical evidence that outbreaks cause considerable disruption in total consumer expenditures with significant heterogeneity across categories. Our findings strongly imply that customers alter their behaviors to reduce the risk of infection. The estimated effect of an epidemic outbreak is qualitatively different from that of other macroeconomic factors. The implications of this research provide important guidance for policy interventions and marketing decisions aimed at sustaining economic growth.

  9. QUALITY ASSESSMENT IN URBAN PUBLIC TRANSPORT

    OpenAIRE

    Vasile DRAGU; Eugenia Alina ROMAN; Vlad C?t?lin ROMAN

    2013-01-01

    The performance of a transport service is measured by its quality attribute, which is the most synthetic and comprehensive indicator. However, it is difficult to identify this service quality attribute because it involves the various customer perceptions and it may be influenced by the passengers’ preferences or by the travel behavior corresponding to a certain social category. The modal split of passenger transport is also influenced by the quality of supplied services which establishes a ma...

  10. Soil erosion risk assessment using interviews, empirical soil erosion modeling (RUSLE) and fallout radionuclides in a volcanic crater lake watershed subjected to land use change, western Uganda

    Science.gov (United States)

    De Crop, Wannes; Ryken, Nick; Tomma Okuonzia, Judith; Van Ranst, Eric; Baert, Geert; Boeckx, Pascal; Verschuren, Dirk; Verdoodt, Ann

    2017-04-01

    Population pressure results in conversion of natural vegetation to cropland within the western Ugandan crater lake watersheds. These watersheds however are particularly prone to soil degradation and erosion because of the high rainfall intensity and steep topography. Increased soil erosion losses expose the aquatic ecosystems to excessive nutrient loading. In this study, the Katinda crater lake watershed, which is already heavily impacted by agricultural land use, was selected for an explorative study on its (top)soil characteristics - given the general lack of data on soils within these watersheds - as well as an assessment of soil erosion risks. Using group discussions and structured interviews, the local land users' perceptions on land use, soil quality, soil erosion and lake ecology were compiled. Datasets on rainfall, topsoil characteristics, slope gradient and length, and land use were collected. Subsequently a RUSLE erosion model was run. Results from this empirical erosion modeling approach were validated against soil erosion estimates based on 137Cs measurements.

  11. Stereoscopic image quality assessment using disparity-compensated view filtering

    Science.gov (United States)

    Song, Yang; Yu, Mei; Jiang, Gangyi; Shao, Feng; Peng, Zongju

    2016-03-01

    Stereoscopic image quality assessment (IQA) plays a vital role in stereoscopic image/video processing systems. We propose a new quality assessment for stereoscopic image that uses disparity-compensated view filtering (DCVF). First, because a stereoscopic image is composed of different frequency components, DCVF is designed to decompose it into high-pass and low-pass components. Then, the qualities of different frequency components are acquired according to their phase congruency and coefficient distribution characteristics. Finally, support vector regression is utilized to establish a mapping model between the component qualities and subjective qualities, and stereoscopic image quality is calculated using this mapping model. Experiments on the LIVE 3-D IQA database and NBU 3-D IQA databases demonstrate that the proposed method can evaluate stereoscopic image quality accurately. Compared with several state-of-the-art quality assessment methods, the proposed method is more consistent with human perception.

  12. Water quality assessment of bioenergy production

    Science.gov (United States)

    Rocio Diaz-Chavez; Goran Berndes; Dan Neary; Andre Elia Neto; Mamadou Fall

    2011-01-01

    Water quality is a measurement of the biological, chemical, and physical characteristics of water against certain standards set to ensure ecological and/or human health. Biomass production and conversion to fuels and electricity can impact water quality in lakes, rivers, and aquifers with consequences for aquatic ecosystem health and also human water uses. Depending on...

  13. 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.

  14. Microbiological quality assessment of facial cosmetics | Stanley ...

    African Journals Online (AJOL)

    Cosmetics are beauty enhancing agents for which microbial quality concerns have been neglected by users who often see them as innocuous. The aim of this study was to investigate the microbiological quality of selected facial cosmetic products. Thirty (30) samples each of in-use and unused cosmetics were obtained from ...

  15. Microbiological methods for assessing soil quality

    NARCIS (Netherlands)

    Bloem, J.; Hopkins, D.W.; Benedetti, A.

    2006-01-01

    This book provides a selection of microbiological methods that are already applied in regional or national soil quality monitoring programs. It is split into two parts: part one gives an overview of approaches to monitoring, evaluating and managing soil quality. Part two provides a selection of

  16. QUALITY ASSESSMENT OF EFFLUENT DISCHARGES FROM ...

    African Journals Online (AJOL)

    Osondu

    Abstract. The quality of effluent discharges from a vegetable oil processing company, located in Anambra State –. South east Nigeria, was evaluated relative to regulatory body – Federal Environmental Protection. Agency (FEPA) standard. Wastewater quality parameters namely; biochemical oxygen demand (BOD),.

  17. Assessment of Groundwater Quality in Shallow

    African Journals Online (AJOL)

    This paper investigates the aquifer system and groundwater quality of Okrika Island using lithological logs, static ... quantity is as important as its quality. This is ..... Ibadan, Evans. Brothers Nigeria Limited. Olobaniyi, S.B. and Owoyemi, F.B. 2006. Characterization by factor analysis of the chemical facies of groundwater in the.

  18. SOIL QUALITY ASSESSMENT USING FUZZY MODELING

    Science.gov (United States)

    Maintaining soil productivity is essential if agriculture production systems are to be sustainable, thus soil quality is an essential issue. However, there is a paucity of tools for measurement for the purpose of understanding changes in soil quality. Here the possibility of using fuzzy modeling t...

  19. Current hybrid-electric powertrain architectures: Applying empirical design data to life cycle assessment and whole-life cost analysis

    International Nuclear Information System (INIS)

    Hutchinson, Tim; Burgess, Stuart; Herrmann, Guido

    2014-01-01

    Highlights: • Design data for 44 hybrid cars available in the US has been gathered and analysed. • An empirical life cycle assessment of greenhouse gas emissions is performed. • Empirical whole-life cost modelling is used to evaluate powertrain architectures. • The value to be seen in each architecture is highly dependent on its application. • Mild, HSD and Plug-in HSD powertrains are the most likely architectures to dominate. - Abstract: The recent introduction of hybrid-electric powertrain technology has disrupted the automotive industry, causing significant powertrain design divergence. As this radical powertrain innovation matures, will hybrid vehicles dominate the future automotive market and does this represent a positive shift in the environmental impact of the industry? The answer to this question is sought within this paper. It seeks to take advantage of the position that the industry has reached, replacing previous theoretical studies with the first extensive empirical models of life cycle emissions and whole-life costing. A comprehensive snapshot of today’s hybrid market is presented, with detailed descriptions of the various hybrid powertrain architectures. Design data has been gathered for 44 hybrid passenger cars currently available in the US. The empirical data is used to explore the relative life cycle greenhouse gas emissions and whole-life costing of different hybrid powertrain architectures. Potential dominant designs are identified and their emissions are shown to be reduced. However, both the emissions and economic competitiveness of different hybrid powertrains are shown to vary significantly depending on how the vehicle is used

  20. Ljubljana quality selection (LQS) - innovative case of restaurant assessment system

    OpenAIRE

    Maja Uran Maravić; Daniela Gračan; Zrinka Zadel

    2014-01-01

    The purpose – The purpose of this paper is to briefly present the most well-known restaurant assessment systems where restaurant are assessed by experts. The aim is to highlight the strengths and weaknesses of each system. Design –The special focus is to give answers on questions: how are the restaurants assessed by experts, which are the elements and standards of assessment and whether they are consistent with the quality dimensions as advocated in the theory of service quality. Methodology ...

  1. The Depression Inventory Development Workgroup: A Collaborative, Empirically Driven Initiative to Develop a New Assessment Tool for Major Depressive Disorder.

    Science.gov (United States)

    Vaccarino, Anthony L; Evans, Kenneth R; Kalali, Amir H; Kennedy, Sidney H; Engelhardt, Nina; Frey, Benicio N; Greist, John H; Kobak, Kenneth A; Lam, Raymond W; MacQueen, Glenda; Milev, Roumen; Placenza, Franca M; Ravindran, Arun V; Sheehan, David V; Sills, Terrence; Williams, Janet B W

    2016-01-01

    The Depression Inventory Development project is an initiative of the International Society for CNS Drug Development whose goal is to develop a comprehensive and psychometrically sound measurement tool to be utilized as a primary endpoint in clinical trials for major depressive disorder. Using an iterative process between field testing and psychometric analysis and drawing upon expertise of international researchers in depression, the Depression Inventory Development team has established an empirically driven and collaborative protocol for the creation of items to assess symptoms in major depressive disorder. Depression-relevant symptom clusters were identified based on expert clinical and patient input. In addition, as an aid for symptom identification and item construction, the psychometric properties of existing clinical scales (assessing depression and related indications) were evaluated using blinded datasets from pharmaceutical antidepressant drug trials. A series of field tests in patients with major depressive disorder provided the team with data to inform the iterative process of scale development. We report here an overview of the Depression Inventory Development initiative, including results of the third iteration of items assessing symptoms related to anhedonia, cognition, fatigue, general malaise, motivation, anxiety, negative thinking, pain and appetite. The strategies adopted from the Depression Inventory Development program, as an empirically driven and collaborative process for scale development, have provided the foundation to develop and validate measurement tools in other therapeutic areas as well.

  2. Quantitative assessment of structural image quality.

    Science.gov (United States)

    Rosen, Adon F G; Roalf, David R; Ruparel, Kosha; Blake, Jason; Seelaus, Kevin; Villa, Lakshmi P; Ciric, Rastko; Cook, Philip A; Davatzikos, Christos; Elliott, Mark A; Garcia de La Garza, Angel; Gennatas, Efstathios D; Quarmley, Megan; Schmitt, J Eric; Shinohara, Russell T; Tisdall, M Dylan; Craddock, R Cameron; Gur, Raquel E; Gur, Ruben C; Satterthwaite, Theodore D

    2017-12-24

    Data quality is increasingly recognized as one of the most important confounding factors in brain imaging research. It is particularly important for studies of brain development, where age is systematically related to in-scanner motion and data quality. Prior work has demonstrated that in-scanner head motion biases estimates of structural neuroimaging measures. However, objective measures of data quality are not available for most structural brain images. Here we sought to identify quantitative measures of data quality for T1-weighted volumes, describe how these measures relate to cortical thickness, and delineate how this in turn may bias inference regarding associations with age in youth. Three highly-trained raters provided manual ratings of 1840 raw T1-weighted volumes. These images included a training set of 1065 images from Philadelphia Neurodevelopmental Cohort (PNC), a test set of 533 images from the PNC, as well as an external test set of 242 adults acquired on a different scanner. Manual ratings were compared to automated quality measures provided by the Preprocessed Connectomes Project's Quality Assurance Protocol (QAP), as well as FreeSurfer's Euler number, which summarizes the topological complexity of the reconstructed cortical surface. Results revealed that the Euler number was consistently correlated with manual ratings across samples. Furthermore, the Euler number could be used to identify images scored "unusable" by human raters with a high degree of accuracy (AUC: 0.98-0.99), and out-performed proxy measures from functional timeseries acquired in the same scanning session. The Euler number also was significantly related to cortical thickness in a regionally heterogeneous pattern that was consistent across datasets and replicated prior results. Finally, data quality both inflated and obscured associations with age during adolescence. Taken together, these results indicate that reliable measures of data quality can be automatically derived from T1

  3. Assessment of the Quality Management Models in Higher Education

    Science.gov (United States)

    Basar, Gulsun; Altinay, Zehra; Dagli, Gokmen; Altinay, Fahriye

    2016-01-01

    This study involves the assessment of the quality management models in Higher Education by explaining the importance of quality in higher education and by examining the higher education quality assurance system practices in other countries. The qualitative study was carried out with the members of the Higher Education Planning, Evaluation,…

  4. Quality Assurance of Assessment and Moderation Discourses Involving Sessional Staff

    Science.gov (United States)

    Grainger, Peter; Adie, Lenore; Weir, Katie

    2016-01-01

    Quality assurance is a major agenda in tertiary education. The casualisation of academic work, especially in teaching, is also a quality assurance issue. Casual or sessional staff members teach and assess more than 50% of all university courses in Australia, and yet the research in relation to the role sessional staff play in quality assurance of…

  5. The Emergence of Quality Assessment in Brazilian Basic Education

    Science.gov (United States)

    Kauko, Jaakko; Centeno, Vera Gorodski; Candido, Helena; Shiroma, Eneida; Klutas, Anni

    2016-01-01

    The focus in this article is on Brazilian education policy, specifically quality assurance and evaluation. The starting point is that quality, measured by means of large-scale assessments, is one of the key discursive justifications for educational change. The article addresses the questions of how quality evaluation became a significant feature…

  6. Mycoflora and Water Quality index Assessment of Water Sources in ...

    African Journals Online (AJOL)

    Mycoflora and Water quality index assessment studies of hand-dug wells and a river in Oproama Community, Niger Delta were studied. Water samples was taken from the ten sampling stations (7 wells and 3 river points) and water quality index using water quality index calculator given by National Sanitation Foundation ...

  7. Service Quality and Customer Satisfaction: An Assessment and Future Directions.

    Science.gov (United States)

    Hernon, Peter; Nitecki, Danuta A.; Altman, Ellen

    1999-01-01

    Reviews the literature of library and information science to examine issues related to service quality and customer satisfaction in academic libraries. Discusses assessment, the application of a business model to higher education, a multiple constituency approach, decision areas regarding service quality, resistance to service quality, and future…

  8. Quality Assessment of Compressed Video for Automatic License Plate Recognition

    DEFF Research Database (Denmark)

    Ukhanova, Ann; Støttrup-Andersen, Jesper; Forchhammer, Søren

    2014-01-01

    Definition of video quality requirements for video surveillance poses new questions in the area of quality assessment. This paper presents a quality assessment experiment for an automatic license plate recognition scenario. We explore the influence of the compression by H.264/AVC and H.265/HEVC...... standards on the recognition performance. We compare logarithmic and logistic functions for quality modeling. Our results show that a logistic function can better describe the dependence of recognition performance on the quality for both compression standards. We observe that automatic license plate...

  9. A new air quality monitoring and early warning system: Air quality assessment and air pollutant concentration prediction.

    Science.gov (United States)

    Yang, Zhongshan; Wang, Jian

    2017-10-01

    Air pollution in many countries is worsening with industrialization and urbanization, resulting in climate change and affecting people's health, thus, making the work of policymakers more difficult. It is therefore both urgent and necessary to establish amore scientific air quality monitoring and early warning system to evaluate the degree of air pollution objectively, and predict pollutant concentrations accurately. However, the integration of air quality assessment and air pollutant concentration prediction to establish an air quality system is not common. In this paper, we propose a new air quality monitoring and early warning system, including an assessment module and forecasting module. In the air quality assessment module, fuzzy comprehensive evaluation is used to determine the main pollutants and evaluate the degree of air pollution more scientifically. In the air pollutant concentration prediction module, a novel hybridization model combining complementary ensemble empirical mode decomposition, a modified cuckoo search and differential evolution algorithm, and an Elman neural network, is proposed to improve the forecasting accuracy of six main air pollutant concentrations. To verify the effectiveness of this system, pollutant data for two cities in China are used. The result of the fuzzy comprehensive evaluation shows that the major air pollutants in Xi'an and Jinan are PM 10 and PM 2.5 respectively, and that the air quality of Xi'an is better than that of Jinan. The forecasting results indicate that the proposed hybrid model is remarkably superior to all benchmark models on account of its higher prediction accuracy and stability. Copyright © 2017 Elsevier Inc. All rights reserved.

  10. Assessing Software Quality Through Visualised Cohesion Metrics

    Directory of Open Access Journals (Sweden)

    Timothy Shih

    2001-05-01

    Full Text Available Cohesion is one of the most important factors for software quality as well as maintainability, reliability and reusability. Module cohesion is defined as a quality attribute that seeks for measuring the singleness of the purpose of a module. The module of poor quality can be a serious obstacle to the system quality. In order to design a good software quality, software managers and engineers need to introduce cohesion metrics to measure and produce desirable software. A highly cohesion software is thought to be a desirable constructing. In this paper, we propose a function-oriented cohesion metrics based on the analysis of live variables, live span and the visualization of processing element dependency graph. We give six typical cohesion examples to be measured as our experiments and justification. Therefore, a well-defined, well-normalized, well-visualized and well-experimented cohesion metrics is proposed to indicate and thus enhance software cohesion strength. Furthermore, this cohesion metrics can be easily incorporated with software CASE tool to help software engineers to improve software quality.

  11. Real Time Face Quality Assessment for Face Log Generation

    DEFF Research Database (Denmark)

    Kamal, Nasrollahi; Moeslund, Thomas B.

    2009-01-01

    Summarizing a long surveillance video to just a few best quality face images of each subject, a face-log, is of great importance in surveillance systems. Face quality assessment is the back-bone for face log generation and improving the quality assessment makes the face logs more reliable....... Developing a real time face quality assessment system using the most important facial features and employing it for face logs generation are the concerns of this paper. Extensive tests using four databases are carried out to validate the usability of the system....

  12. Standard setting and quality of assessment: A conceptual approach ...

    African Journals Online (AJOL)

    Quality performance standards and the effect of assessment outcomes are important in the educational milieu, as assessment remains the representative ... not be seen as a methodological process of setting pass/fail cut-off points only, but as a powerful catalyst for quality improvements in HPE by promoting excellence in ...

  13. Crowdsourcing based subjective quality assessment of adaptive video streaming

    DEFF Research Database (Denmark)

    Shahid, M.; Søgaard, Jacob; Pokhrel, J.

    2014-01-01

    humans are considered to be the most valid method of the as- sessment of QoE. Besides lab-based subjective experiments, crowdsourcing based subjective assessment of video quality is gaining popularity as an alternative method. This paper presents insights into a study that investigates perceptual pref......- erences of various adaptive video streaming scenarios through crowdsourcing based subjective quality assessment....

  14. A ranking index for quality assessment of forensic DNA profiles forensic DNA profiles

    Directory of Open Access Journals (Sweden)

    Ansell Ricky

    2010-11-01

    Full Text Available Abstract Background Assessment of DNA profile quality is vital in forensic DNA analysis, both in order to determine the evidentiary value of DNA results and to compare the performance of different DNA analysis protocols. Generally the quality assessment is performed through manual examination of the DNA profiles based on empirical knowledge, or by comparing the intensities (allelic peak heights of the capillary electrophoresis electropherograms. Results We recently developed a ranking index for unbiased and quantitative quality assessment of forensic DNA profiles, the forensic DNA profile index (FI (Hedman et al. Improved forensic DNA analysis through the use of alternative DNA polymerases and statistical modeling of DNA profiles, Biotechniques 47 (2009 951-958. FI uses electropherogram data to combine the intensities of the allelic peaks with the balances within and between loci, using Principal Components Analysis. Here we present the construction of FI. We explain the mathematical and statistical methodologies used and present details about the applied data reduction method. Thereby we show how to adapt the ranking index for any Short Tandem Repeat-based forensic DNA typing system through validation against a manual grading scale and calibration against a specific set of DNA profiles. Conclusions The developed tool provides unbiased quality assessment of forensic DNA profiles. It can be applied for any DNA profiling system based on Short Tandem Repeat markers. Apart from crime related DNA analysis, FI can therefore be used as a quality tool in paternal or familial testing as well as in disaster victim identification.

  15. Assessment of quality indicators in Spanish higher military education

    OpenAIRE

    Olmos Gómez Maria del Carmen; de Luna Emilio Berrocal; Olmedo Moreno Eva M.; Eisman Leonor Buendía; López Jorge Expósito; Núñez Christian Sánchez; Ramírez Eva Aguaded; Moral Marciana Pegalajar; Ruiz Pelegrina Juan José

    2016-01-01

    The quality assessment is subject to multiple interpretations of its content and purpose, and also regarding to methods and techniques used to develop it. Although purposes of assessment are varied, usually pursuit three goals: Improvement, accountability and information. Currently, the concept of quality evaluation has been replaced by the management of educational quality, as Matthew [6] point “the new culture of evaluation is no longer oriented to penalty, ranking or selection of people, a...

  16. Assessment of quality indicators in spanish higher military education

    OpenAIRE

    Olmos Gómez Maria del Carmen; de Luna Emilio Berrocal; Olmedo Moreno Eva M.; Eisman Leonor Buendía; López Jorge Expósito; Núñez Christian Sánchez; Ramírez Eva Aguaded; Moral Marciana Pegalajar; Ruiz Pelegrina Juan José

    2016-01-01

    The quality assessment is subject to multiple interpretations of its content and purpose, and also regarding to methods and techniques used to develop it. Although purposes of assessment are varied, usually pursuit three goals: Improvement, accountability and information. Currently, the concept of quality evaluation has been replaced by the management of educational quality, as Matthew [6] point “the new culture of evaluation is no longer oriented to penalty, ranking or selection of people, a...

  17. Development of An Empirical Water Quality Model for Stormwater Based on Watershed Land Use in Puget Sound

    Energy Technology Data Exchange (ETDEWEB)

    Cullinan, Valerie I.; May, Christopher W.; Brandenberger, Jill M.; Judd, Chaeli; Johnston, Robert K.

    2007-03-29

    The Sinclair and Dyes Inlet watershed is located on the west side of Puget Sound in Kitsap County, Washington, U.S.A. (Figure 1). The Puget Sound Naval Shipyard (PSNS), U.S Environmental Protection Agency (USEPA), the Washington State Department of Ecology (WA-DOE), Kitsap County, City of Bremerton, City of Bainbridge Island, City of Port Orchard, and the Suquamish Tribe have joined in a cooperative effort to evaluate water-quality conditions in the Sinclair-Dyes Inlet watershed and correct identified problems. A major focus of this project, known as Project ENVVEST, is to develop Water Clean-up (TMDL) Plans for constituents listed on the 303(d) list within the Sinclair and Dyes Inlet watershed. Segments within the Sinclair and Dyes Inlet watershed were listed on the State of Washington’s 1998 303(d) because of fecal coliform contamination in marine water, metals in sediment and fish tissue, and organics in sediment and fish tissue (WA-DOE 2003). Stormwater loading was identified by ENVVEST as one potential source of sediment contamination, which lacked sufficient data for a contaminant mass balance calculation for the watershed. This paper summarizes the development of an empirical model for estimating contaminant concentrations in all streams discharging into Sinclair and Dyes Inlets based on watershed land use, 18 storm events, and wet/dry season baseflow conditions between November 2002 and May 2005. Stream pollutant concentrations along with estimates for outfalls and surface runoff will be used in estimating the loading and ultimately in establishing a Water Cleanup Plan (TMDL) for the Sinclair-Dyes Inlet watershed.

  18. INFORMATION AND COMMUNICATION TECHNOLOGIES TRAINING: CRITERIA FOR INTERNAL QUALITY ASSESSMENT

    Directory of Open Access Journals (Sweden)

    Oleg M. Spirin

    2011-02-01

    Full Text Available In the article the concept of information and communication technology training is specified. It is grounded an internal criteria of information and communication technologies training quality assessment based on experience of the organization, carrying out, analysis of experimental work results on quality assessment of designing, working out, efficiency of methodical system of informatics teachers base vocational training introduction in the conditions of credit-modular technology. Indicators and approaches of their assessment to define the criteria degree are resulted. Indicators of criteria "level differentiation", "individualization" and "intensification" of educational process for information and communication technologies training quality assessment are specified.

  19. Semi-empirical model for the assessment of railway ballast using GPR

    Science.gov (United States)

    Giulia Brancadoro, Maria; Benedetto, Andrea

    2017-04-01

    Over time, railways have become a very competitive mean of transportation, especially for long distances. In order to ensure high level of safety, comfort and regularity of transportation, an efficient maintenance of the railway track-bed is crucial. In fact, the cyclic loads passing on the rails produce a progressive deterioration of railway ballast beneath the sleepers, and a breakdown of its particles that causes a general decrease of railway performances. This work aims at proposing a semi-empirical model for the characterisation of railway ballast grading, through the spectral analysis of Ground-Penetrating Radar (GPR) signal. To this effect, a theoretical study has been preliminary conducted to investigate the propagation and scattering phenomena of the electromagnetic waves within a ballast layer. To confirm the theoretical assumptions, high-frequency GPR signals have been both collected in laboratory and virtual environment. Concerning the latter, progressively more complex numerical domains have been designed and subjected to synthetic GPR test, by a Finite Different Time Domain (FTDT) procedure, run in GPR Max 2D simulator. As first simulation steps, ballast aggregates simplified through circles have been accounted for, with increasing values of radius. Subsequently, real-scale scenarios characterized by multi-size ballast particles, consistent with three different grain size distribution from railway network standards, have been reproduced by the employment of Random Sequential Adsorption - RSA algorithm. As far as the laboratory procedures, real GPR tests have been carried out on an experimental framework purposely set up, and composed of a methacrylate tank filled up with limestone-derived railway ballast. The ballast aggregates grading has been retrieved by means of an automatic image analysis algorithm, run on the lateral sight of the transparent tank. Through their spectral analysis, an empirical relationship between the position of the amplitude

  20. Doctors or technicians: assessing quality of medical education

    Directory of Open Access Journals (Sweden)

    Tayyab Hasan

    2010-09-01

    Full Text Available Tayyab HasanPAPRSB Institute of Health Sciences, University Brunei Darussalam, Bandar Seri Begawan, BruneiAbstract: Medical education institutions usually adapt industrial quality management models that measure the quality of the process of a program but not the quality of the product. The purpose of this paper is to analyze the impact of industrial quality management models on medical education and students, and to highlight the importance of introducing a proper educational quality management model. Industrial quality management models can measure the training component in terms of competencies, but they lack the educational component measurement. These models use performance indicators to assess their process improvement efforts. Researchers suggest that the performance indicators used in educational institutions may only measure their fiscal efficiency without measuring the quality of the educational experience of the students. In most of the institutions, where industrial models are used for quality assurance, students are considered as customers and are provided with the maximum services and facilities possible. Institutions are required to fulfill a list of recommendations from the quality control agencies in order to enhance student satisfaction and to guarantee standard services. Quality of medical education should be assessed by measuring the impact of the educational program and quality improvement procedures in terms of knowledge base development, behavioral change, and patient care. Industrial quality models may focus on academic support services and processes, but educational quality models should be introduced in parallel to focus on educational standards and products.Keywords: educational quality, medical education, quality control, quality assessment, quality management models

  1. The Dynamics of Ending a Romantic Relationship: An Empirical Assessment of Grief in College Students.

    Science.gov (United States)

    Kaczmarek, Peggy; And Others

    1990-01-01

    Used an adaptation of the Texas Revised Inventory of Grief which assesses the grief resulting from loss through death to assess the grief resulting from the ending of a romantic relationship in a college student population (N=337). Results validated the grief response in college students resulting from the ending of a romantic relationship.…

  2. Water quality assessment and hydrochemical characteristics of ...

    Indian Academy of Sciences (India)

    China 2008 Standards for groundwater quality, exposure draft (in Chinese). Ouyang T P, Zhu Z Y, Kuang Y Q, Huang N S, Tan J J, Guo. G Z, Gu L S and Sun B 2006 Dissolved trace elements in river water: Spatial distribution and the influencing factor, a study for the Pearl River Delta Economic Zone,. China; Environ. Geol.

  3. Assessing air quality impacts of managed lanes.

    Science.gov (United States)

    2010-12-01

    Impacts on transit bus performance and air quality were investigated for a case study high-occupancy / toll (HOT) lane project on a corridor of I-95 near Miami. Trends in air pollutant concentration monitoring data in the study area first were analyz...

  4. Quality and effectiveness of strategic environmental assessment ...

    African Journals Online (AJOL)

    However, the SEA also achieved significant successes in terms of 'indirect outputs', such as a more holistic approach to water management, facilitated more effective public participation and contributed to broader strategic planning in the department. The paper concludes by making recommendations to improve the quality ...

  5. Assessing the colour quality of LED sources

    DEFF Research Database (Denmark)

    Jost-Boissard, S.; Avouac, P.; Fontoynont, Marc

    2015-01-01

    The CIE General Colour Rendering Index is currently the criterion used to describe and measure the colour-rendering properties of light sources. But over the past years, there has been increasing evidence of its limitations particularly its ability to predict the perceived colour quality of light...... but also with a preference index or a memory index calculated without blue and purple hues. A very low correlation was found between appreciation and naturalness indicating that colour quality needs more than one metric to describe subjective aspects.......The CIE General Colour Rendering Index is currently the criterion used to describe and measure the colour-rendering properties of light sources. But over the past years, there has been increasing evidence of its limitations particularly its ability to predict the perceived colour quality of light...... sources and especially some LEDs. In this paper, several aspects of perceived colour quality are investigated using a side-by-side paired comparison method, and the following criteria: naturalness of fruits and vegetables, colourfulness of the Macbeth Color Checker chart, visual appreciation...

  6. Physicochemical and bacteriological quality assessment of the ...

    African Journals Online (AJOL)

    In order to ascertain water quality for human consumption, physical and chemical parameters, together with faecal forms of bacteria were evaluated in the drinking water resources of the Bambui community in the North West region of Cameroon. This study was necessitated by the occasional presence of suspended ...

  7. Soil quality assessment in rice production systems

    NARCIS (Netherlands)

    Rodrigues de Lima, A.C.

    2007-01-01

    In the state of Rio Grande do Sul, Brazil, rice production is one of the most important regional activities. Farmers are concerned that the land use practices for rice production in the Camaquã region may not be sustainable because of detrimental effects on soil quality. The study presented in this

  8. assessing participation in secondary education quality enhancement

    African Journals Online (AJOL)

    PROF. BARTH EKWEME

    and parents of students in public secondary schools were used. A total of 8,590 ... activities. The teacher's role in enhancing the quality of education is quite crucial since learning in the school system does not occur in a vacuum. Perhaps, this is the basis of the axiom that a .... have low education get more money and.

  9. ASSESSMENT OF THE NUTRITIONAL QUALITY OF SMOKED ...

    African Journals Online (AJOL)

    Ibrahim Baba Usman

    ABSTRACT. This study examined the nutritional quality of smoked Catfish. Clarias gariepinusI obtained in three different markets in Lapai,. Niger State, Nigeria for a period of three months. Proximate compositions of smoked Clarias gariepinus were determined. The highest protein content (49.27 ± 2.59) was recorded in ...

  10. Quality Assessment of Sharpened Images: Challenges, Methodology, and Objective Metrics.

    Science.gov (United States)

    Krasula, Lukas; Le Callet, Patrick; Fliegel, Karel; Klima, Milos

    2017-01-10

    Most of the effort in image quality assessment (QA) has been so far dedicated to the degradation of the image. However, there are also many algorithms in the image processing chain that can enhance the quality of an input image. These include procedures for contrast enhancement, deblurring, sharpening, up-sampling, denoising, transfer function compensation, etc. In this work, possible strategies for the quality assessment of sharpened images are investigated. This task is not trivial because the sharpening techniques can increase the perceived quality, as well as introduce artifacts leading to the quality drop (over-sharpening). Here, the framework specifically adapted for the quality assessment of sharpened images and objective metrics comparison in this context is introduced. However, the framework can be adopted in other quality assessment areas as well. The problem of selecting the correct procedure for subjective evaluation was addressed and a subjective test on blurred, sharpened, and over-sharpened images was performed in order to demonstrate the use of the framework. The obtained ground-truth data were used for testing the suitability of state-ofthe- art objective quality metrics for the assessment of sharpened images. The comparison was performed by novel procedure using ROC analyses which is found more appropriate for the task than standard methods. Furthermore, seven possible augmentations of the no-reference S3 metric adapted for sharpened images are proposed. The performance of the metric is significantly improved and also superior over the rest of the tested quality criteria with respect to the subjective data.

  11. Daily Encounter Cards-Evaluating the Quality of Documented Assessments.

    Science.gov (United States)

    Cheung, Warren J; Dudek, Nancy; Wood, Timothy J; Frank, Jason R

    2016-10-01

    Concerns over the quality of work-based assessment (WBA) completion has resulted in faculty development and rater training initiatives. Daily encounter cards (DECs) are a common form of WBA used in ambulatory care and shift work settings. A tool is needed to evaluate initiatives aimed at improving the quality of completion of this widely used form of WBA. The completed clinical evaluation report rating (CCERR) was designed to provide a measure of the quality of documented assessments on in-training evaluation reports. The purpose of this study was to provide validity evidence to support using the CCERR to assess the quality of DEC completion. Six experts in resident assessment grouped 60 DECs into 3 quality categories (high, average, and poor) based on how informative each DEC was for reporting judgments of the resident's performance. Eight supervisors (blinded to the expert groupings) scored the 10 most representative DECs in each group using the CCERR. Mean scores were compared to determine if the CCERR could discriminate based on DEC quality. Statistically significant differences in CCERR scores were observed between all quality groups ( P  evaluate DEC quality. It can serve as an outcome measure for studying interventions targeted at improving the quality of assessments documented on DECs.

  12. Daily Encounter Cards—Evaluating the Quality of Documented Assessments

    Science.gov (United States)

    Cheung, Warren J.; Dudek, Nancy; Wood, Timothy J.; Frank, Jason R.

    2016-01-01

    ABSTRACT Background  Concerns over the quality of work-based assessment (WBA) completion has resulted in faculty development and rater training initiatives. Daily encounter cards (DECs) are a common form of WBA used in ambulatory care and shift work settings. A tool is needed to evaluate initiatives aimed at improving the quality of completion of this widely used form of WBA. Objective  The completed clinical evaluation report rating (CCERR) was designed to provide a measure of the quality of documented assessments on in-training evaluation reports. The purpose of this study was to provide validity evidence to support using the CCERR to assess the quality of DEC completion. Methods  Six experts in resident assessment grouped 60 DECs into 3 quality categories (high, average, and poor) based on how informative each DEC was for reporting judgments of the resident's performance. Eight supervisors (blinded to the expert groupings) scored the 10 most representative DECs in each group using the CCERR. Mean scores were compared to determine if the CCERR could discriminate based on DEC quality. Results  Statistically significant differences in CCERR scores were observed between all quality groups (P < .001). A generalizability analysis demonstrated the majority of score variation was due to differences in DECs. The reliability with a single rater was 0.95. Conclusions  The CCERR is a reliable and valid tool to evaluate DEC quality. It can serve as an outcome measure for studying interventions targeted at improving the quality of assessments documented on DECs. PMID:27777675

  13. Clinical ethics and the quality initiative: a pilot study for the empirical evaluation of ethics case consultation.

    Science.gov (United States)

    Nilson, Elizabeth G; Acres, Cathleen A; Tamerin, Naomi G; Fins, Joseph J

    2008-01-01

    The Institute of Medicine's quality imperatives include the need to provide safe, effective, patient-centered, timely, efficient, and equitable care. Less attention has been paid to quality metrics as they relate to the assessment of clinical ethics consultation and its impact on care. A better understanding of how ethics consultation influences the quality of care might identify opportunities for improvement. A descriptive pilot study, involving 7 hospitals in the New York-Presbyterian Healthcare System, was conducted to identify key elements of the ethics consultative process that might impact clinical and psychosocial outcomes. A majority of consults involved medical or intensive care unit patients and end-of-life decision making; 75.5% had or received a do-not-resuscitate order, 90.6% lacked decision-making capacity, 43.4% had an advance directive. Conflict existed in a majority. Future research should include surrogate decision making, patients on nonmedical services who may have unrecognized ethical dilemmas, and the role of conflict in clinical care.

  14. How do Experts Assess Usability Problems? An Empirical Analysis of cognitive Shortcuts

    NARCIS (Netherlands)

    Lentz, Leo; de Jong, Menno D.T.

    2009-01-01

    Discusses the cognitive shortcuts that may hinder technical communicators in empathizing with readers. Explores the issue of judging the severity of problems detected in a document evaluation. Demonstrates how cognitive shortcuts may affect technical communicators' capability to assess the

  15. Developing and validating a psychometric scale for image quality assessment

    International Nuclear Information System (INIS)

    Mraity, H.; England, A.; Hogg, P.

    2014-01-01

    Purpose: Using AP pelvis as a catalyst, this paper explains how a psychometric scale for image quality assessment can be created using Bandura's theory for self-efficacy. Background: Establishing an accurate diagnosis is highly dependent upon the quality of the radiographic image. Image quality, as a construct (i.e. set of attributes that makes up the image quality), continues to play an essential role in the field of diagnostic radiography. The process of assessing image quality can be facilitated by using criteria, such as the European Commission (EC) guidelines for quality criteria as published in 1996. However, with the advent of new technology (Computed Radiography and Digital Radiography), some of the EC criteria may no longer be suitable for assessing the visual quality of a digital radiographic image. Moreover, a lack of validated visual image quality scales in the literature can also lead to significant variations in image quality evaluation. Creating and validating visual image quality scales, using a robust methodology, could reduce variability and improve the validity and reliability of perceptual image quality evaluations

  16. Exploring the Notion of Quality in Quality Higher Education Assessment in a Collaborative Future

    Science.gov (United States)

    Maguire, Kate; Gibbs, Paul

    2013-01-01

    The purpose of this article is to contribute to the debate on the notion of quality in higher education with particular focus on "objectifying through articulation" the assessment of quality by professional experts. The article gives an overview of the differentiations of quality as used in higher education. It explores a substantial…

  17. Palm Beach Quality Counts: QRS Profile. The Child Care Quality Rating System (QRS) Assessment

    Science.gov (United States)

    Child Trends, 2010

    2010-01-01

    This paper presents a profile of Palm Beach's Quality Counts prepared as part of the Child Care Quality Rating System (QRS) Assessment Study. The profile consists of several sections and their corresponding descriptions including: (1) Program Information; (2) Rating Details; (3) Quality Indicators for Center-Based Programs; (4) Indicators for…

  18. Development of a quality-assessment tool for experimental bruxism studies: reliability and validity.

    Science.gov (United States)

    Dawson, Andreas; Raphael, Karen G; Glaros, Alan; Axelsson, Susanna; Arima, Taro; Ernberg, Malin; Farella, Mauro; Lobbezoo, Frank; Manfredini, Daniele; Michelotti, Ambra; Svensson, Peter; List, Thomas

    2013-01-01

    To combine empirical evidence and expert opinion in a formal consensus method in order to develop a quality-assessment tool for experimental bruxism studies in systematic reviews. Tool development comprised five steps: (1) preliminary decisions, (2) item generation, (3) face-validity assessment, (4) reliability and discriminitive validity assessment, and (5) instrument refinement. The kappa value and phi-coefficient were calculated to assess inter-observer reliability and discriminative ability, respectively. Following preliminary decisions and a literature review, a list of 52 items to be considered for inclusion in the tool was compiled. Eleven experts were invited to join a Delphi panel and 10 accepted. Four Delphi rounds reduced the preliminary tool-Quality-Assessment Tool for Experimental Bruxism Studies (Qu-ATEBS)- to 8 items: study aim, study sample, control condition or group, study design, experimental bruxism task, statistics, interpretation of results, and conflict of interest statement. Consensus among the Delphi panelists yielded good face validity. Inter-observer reliability was acceptable (k = 0.77). Discriminative validity was excellent (phi coefficient 1.0; P reviews of experimental bruxism studies, exhibits face validity, excellent discriminative validity, and acceptable inter-observer reliability. Development of quality assessment tools for many other topics in the orofacial pain literature is needed and may follow the described procedure.

  19. Water Quality Index Assessment of Pogradec Water- Supply, in Albania

    OpenAIRE

    , P. Icka; , R. Damo

    2016-01-01

    In this paper is applied for the first time in Albania Water Quality Index (WQI) of the Canadian Council of Ministries of the Environment (CCME) for assessment of water quality of water supply network on Pogradec city. CCME WQI, a technique of rating water quality, is an effective tool to assess spatial and temporal changes on the quality of any water body. Calculations of the index are based on a combination of three factors: scope - the number of variables whose objectives are not met; freq...

  20. Environmental Monitoring, Water Quality - Lakes Assessments - Attaining

    Data.gov (United States)

    NSGIC Education | GIS Inventory — This layer shows only attaining lakes of the Integrated List. The Lakes Integrated List represents lake assessments in an integrated format for the Clean Water Act...

  1. Quality assessment of forest cutting with chainsaw

    Directory of Open Access Journals (Sweden)

    Octávio Barbosa Plaster

    2012-06-01

    Full Text Available This research evaluated the quality of forest harvest using chainsaw, in farms in the south of Espirito Santo state, Brazil, considering aspects of quality and loss of wood left in the strains. A total of 250 m² plots were launched to collect data of forest cut with chainsaw, for evaluating the quality of the cut related mto: presence of skewers; crack damage; strains burst range nonstandard; strains without the notch directional, and the remaining height of the strain, in order to measure the loss of wood held in the strains. The main results were: the spike was present in 21.9% of the strains, the cracks in 17.2% of the strains, non-standard strains in 44.6% of them and unnotched directional strains in 34.5% of the evaluations. To check the influence of the realization of the directional notch on the height of the strains t-test, at 5% probability, has shown that there is an increased contribution to height of the strains, where the cut was made without the directional notch. The amount of wood held in the strains above the recommended maximum was, on average, 2.43 m³.ha-1, representing a loss of R$ 172.53 ha-1. It was verified that the loss of timber remaining in eucalyptus strains was higher in places where, for the logging, there was not done the directional notch. The items evaluated showed uneven quality, indicating the need to improve cutting with chainsaw.

  2. lessons and challenges from software quality assessment

    African Journals Online (AJOL)

    DJFLEX

    ANSI/ASQCA3/1978) gave the definition of quality as. “The totality of features and characteristics of a product or service that bear on its ability to satisfy stated or implied needs.” Software is a critical core industry that is essential to national interests in science, technology, etc. It is in several places at the same time in today's ...

  3. ASSESSMENT OF QUALITY OF INNOVATIVE TECHNOLOGIES

    OpenAIRE

    Larisa Alexejevna Ismagilova; Nadegda Aleksandrovna Sukhova

    2016-01-01

    We consider the topical issue of implementation of innovative technologies in the aircraft engine building industry. In this industry, products with high reliability requirements are developed and mass-produced. These products combine the latest achievements of science and technology. To make a decision on implementation of innovative technologies, a comprehensive assessment is carried out. It affects the efficiency of the innovations realization. In connection with this, the assessment of qu...

  4. QRS detection based ECG quality assessment

    International Nuclear Information System (INIS)

    Hayn, Dieter; Jammerbund, Bernhard; Schreier, Günter

    2012-01-01

    Although immediate feedback concerning ECG signal quality during recording is useful, up to now not much literature describing quality measures is available. We have implemented and evaluated four ECG quality measures. Empty lead criterion (A), spike detection criterion (B) and lead crossing point criterion (C) were calculated from basic signal properties. Measure D quantified the robustness of QRS detection when applied to the signal. An advanced Matlab-based algorithm combining all four measures and a simplified algorithm for Android platforms, excluding measure D, were developed. Both algorithms were evaluated by taking part in the Computing in Cardiology Challenge 2011. Each measure's accuracy and computing time was evaluated separately. During the challenge, the advanced algorithm correctly classified 93.3% of the ECGs in the training-set and 91.6 % in the test-set. Scores for the simplified algorithm were 0.834 in event 2 and 0.873 in event 3. Computing time for measure D was almost five times higher than for other measures. Required accuracy levels depend on the application and are related to computing time. While our simplified algorithm may be accurate for real-time feedback during ECG self-recordings, QRS detection based measures can further increase the performance if sufficient computing power is available. (paper)

  5. An empirical evaluation of software quality assurance practices and challenges in a developing country: a comparison of Nigeria and Turkey

    OpenAIRE

    Sowunmi, Olaperi Yeside; Misra, Sanjay; Fernandez-Sanz, Luis; Crawford, Broderick; Soto, Ricardo

    2016-01-01

    Background The importance of quality assurance in the software development process cannot be overemphasized because its adoption results in high reliability and easy maintenance of the software system and other software products. Software quality assurance includes different activities such as quality control, quality management, quality standards, quality planning, process standardization and improvement amongst others. The aim of this work is to further investigate the software quality assu...

  6. Assessment report for Hanford analytical services quality assurance plan

    International Nuclear Information System (INIS)

    Taylor, L.H.

    1994-11-01

    This report documents the assessment results of DOE/RL-94-55, Hanford Analytical Services Quality Assurance Plan. The assessment was conducted using the Requirement and Self-Assessment Database (RSAD), which contains mandatory and nonmandatory DOE Order statements for the relevant DOE orders

  7. Educational Quality Assessment in Pennsylvania. A Decade of Progress. Revised.

    Science.gov (United States)

    Seiverling, Richard F.

    This pamphlet surveys the last ten years of a Pennsylvania assessment program called Educational Quality Assessment (EQA). The assessment, mandated by state law, measures student achievement in ten goal areas. Pamphlet topics cover legislation and history, administration of the program, the EQA inventory, and the school report. (Author/LD)

  8. 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

  9. Empirical assessment of state-and-transition models with a long-term vegetation record from the Sonoran Desert.

    Science.gov (United States)

    Bagchi, Sumanta; Briske, David D; Wu, X B; McClaran, Mitchel P; Bestelmeyer, Brandon T; Fernández-Giménez, Maria E

    2012-03-01

    Resilience-based frameworks, including state-and-transition models (STM), are being increasingly called upon to inform policy and guide ecosystem management, particularly in rangelands. Yet, multiple challenges impede their effective implementation: (1) paucity of empirical tests of resilience concepts, such as alternative states and thresholds, and (2) heavy reliance on expert models, which are seldom tested against empirical data. We developed an analytical protocol to identify unique plant communities and their transitions, and applied it to a long-term vegetation record from the Sonoran Desert (1953-2009). We assessed whether empirical trends were consistent with resilience concepts, and evaluated how they may inform the construction and interpretation of expert STMs. Seven statistically distinct plant communities were identified based on the cover of 22 plant species in 68 permanent transects. We recorded 253 instances of community transitions, associated with changes in species composition between successive samplings. Expectedly, transitions were more frequent among proximate communities with similar species pools than among distant communities. But unexpectedly, communities and transitions were not strongly constrained by soil type and topography. Only 18 transitions featured disproportionately large compositional turnover (species dissimilarity ranged between 0.54 and 0.68), and these were closely associated with communities that were dominated by the common shrub (burroweed, Haplopappus tenuisecta); indicating that only some, and not all, communities may be prone to large compositional change. Temporal dynamics in individual transects illustrated four general trajectories: stability, nondirectional drift, reversibility, and directional shifts that were not reversed even after 2-3 decades. The frequency of transitions and the accompanying species dissimilarity were both positively correlated with fluctuation in precipitation, indicating that climatic

  10. Noise Estimation and Quality Assessment of Gaussian Noise Corrupted Images

    Science.gov (United States)

    Kamble, V. M.; Bhurchandi, K.

    2018-03-01

    Evaluating the exact quantity of noise present in an image and quality of an image in the absence of reference image is a challenging task. We propose a near perfect noise estimation method and a no reference image quality assessment method for images corrupted by Gaussian noise. The proposed methods obtain initial estimate of noise standard deviation present in an image using the median of wavelet transform coefficients and then obtains a near to exact estimate using curve fitting. The proposed noise estimation method provides the estimate of noise within average error of +/-4%. For quality assessment, this noise estimate is mapped to fit the Differential Mean Opinion Score (DMOS) using a nonlinear function. The proposed methods require minimum training and yields the noise estimate and image quality score. Images from Laboratory for image and Video Processing (LIVE) database and Computational Perception and Image Quality (CSIQ) database are used for validation of the proposed quality assessment method. Experimental results show that the performance of proposed quality assessment method is at par with the existing no reference image quality assessment metric for Gaussian noise corrupted images.

  11. Objective and Subjective Assessment of Digital Pathology Image Quality

    Directory of Open Access Journals (Sweden)

    Prarthana Shrestha

    2015-03-01

    Full Text Available The quality of an image produced by the Whole Slide Imaging (WSI scanners is of critical importance for using the image in clinical diagnosis. Therefore, it is very important to monitor and ensure the quality of images. Since subjective image quality assessments by pathologists are very time-consuming, expensive and difficult to reproduce, we propose a method for objective assessment based on clinically relevant and perceptual image parameters: sharpness, contrast, brightness, uniform illumination and color separation; derived from a survey of pathologists. We developed techniques to quantify the parameters based on content-dependent absolute pixel performance and to manipulate the parameters in a predefined range resulting in images with content-independent relative quality measures. The method does not require a prior reference model. A subjective assessment of the image quality is performed involving 69 pathologists and 372 images (including 12 optimal quality images and their distorted versions per parameter at 6 different levels. To address the inter-reader variability, a representative rating is determined as a one-tailed 95% confidence interval of the mean rating. The results of the subjective assessment support the validity of the proposed objective image quality assessment method to model the readers’ perception of image quality. The subjective assessment also provides thresholds for determining the acceptable level of objective quality per parameter. The images for both the subjective and objective quality assessment are based on the HercepTestTM slides scanned by the Philips Ultra Fast Scanners, developed at Philips Digital Pathology Solutions. However, the method is applicable also to other types of slides and scanners.

  12. Water quality assessment of Australian ports using water quality evaluation indices

    OpenAIRE

    Jahan, Sayka; Strezov, Vladimir

    2017-01-01

    Australian ports serve diverse and extensive activities, such as shipping, tourism and fisheries, which may all impact the quality of port water. In this work water quality monitoring at different ports using a range of water quality evaluation indices was applied to assess the port water quality. Seawater samples at 30 stations in the year 2016-2017 from six ports in NSW, Australia, namely Port Jackson, Botany, Kembla, Newcastle, Yamba and Eden, were investigated to determine the physicochem...

  13. Regulated payments for living kidney donation: an empirical assessment of the ethical concerns.

    Science.gov (United States)

    Halpern, Scott D; Raz, Amelie; Kohn, Rachel; Rey, Michael; Asch, David A; Reese, Peter

    2010-03-16

    . Theoretical concerns about paying persons for living kidney donation are not corroborated by empirical evidence. A real-world test of regulated payments for kidney donation is needed to definitively show whether payment provides a viable and ethical method to increase the supply of kidneys available for transplantation. None.

  14. Mapping sediment thickness of Islamabad city using empirical relationships: Implications for seismic hazard assessment

    Science.gov (United States)

    Khan, Sarfraz; Khan, M. Asif

    2016-04-01

    Soft sediments make an important component of the subsurface lithology, especially in areas underlain by river/stream basins. Occupying a position directly above the bedrock up to the land surface, these soft sediments can range in thickness from few centimeters to hundreds of meters. They carry a special nuisance in seismic hazards, as they serve as a source of seismic amplification that may enhance the seismic shaking of many folds. Determination of the thickness of the soft sediments is therefore crucial in seismic hazard analysis. A number of studies in recent years have demonstrated that frequency and amplitude spectrum obtained from the noise measurements during the recording of natural seismicity can be used to obtain thickness of soft sediments covering the bedrock. Nakamura (1989) presented a technique to determine such spectrum using ratio of horizontal to vertical components of the Rayleigh waves. The present study is based on an extensive set of microtremor measurements carried out in the Islamabad city, Pakistan. Fundamental frequencies were obtained from weak motion sensors and Tromino Engy Plus instruments to show that the correlation is clearly valid for a wide range of sediment thickness. A simple formula was derived for the investigated area to determine directly the thickness of sediments from the main peaks in the H/ V spectrum for seismometer and Tromino data separately. A comparison is made between sediment thicknesses derived from empirical relations developed in this study with those given in literature to demonstrate a positive correlation. The correlation of instrumental resonant frequencies with calculated resonant frequencies (theoretical) suggests that the relation derived from the noise measurements mostly depends on the velocity depth function of the shear wave. The fundamental frequency of the main peak of spectral ratio of H/ V using the both instruments correlates well with the thickness of sediments at the site obtained from the

  15. Assessment of Power Quality Problems for TRIGA PUSPATI Reactor (RTP)

    International Nuclear Information System (INIS)

    Mohd Fazli Zakaria; Ramachandaramurthy, V.K.

    2016-01-01

    The electrical power systems are exposed to different types of power quality disturbances. Investigation and monitoring of power quality is necessary to maintain accurate operation of sensitive equipment especially for nuclear installations. This paper will discuss the power quality problems observed at the electrical sources of PUSPATI TRIGA Reactor (RTP). Assessment of power quality requires the identification of any anomalous behavior on a power system, which adversely affects the normal operation of electrical or electronic equipment. A power quality assessment involves gathering data resources; analyzing the data (with reference to power quality standards) then, if problems exist, recommendation of mitigation techniques must be considered. Field power quality data is collected by power quality recorder and analyzed with reference to power quality standards. Normally the electrical power is supplied to the RTP via two sources in order to keep a good reliability where each of them is designed to carry the full load. The assessment of power quality during reactor operation was performed for both electrical sources. There were several disturbances such as voltage harmonics and flicker that exceeded the thresholds. (author)

  16. National Water-Quality Assessment Program: Island of Oahu, Hawaii

    Science.gov (United States)

    Anthony, Stephen S.

    1998-01-01

    During the past 25 years, our Nation has sought to improve its water quality; however, many water-quality issues remain unresolved. To address the need for consistent and scientifically sound information for managing the Nation's water resources, the U.S. Geological Survey began a full-scale National Water-Quality Assessment (NAWQA) Program in 1991. This program is unique compared with other national water-quality assessment studies in that it integrates the monitoring of the quality of surface and ground waters with the study of aquatic ecosystems. The goals of the NAWQA Program are to (1) describe current water-quality conditions for a large part of the Nation's freshwater streams and aquifers, (2) describe how water quality is changing over time, and (3) improve our understanding of the primary natural and human factors affecting water quality. Assessing the quality of water in every location of the Nation would not be practical; therefore, NAWQA Program studies are conducted within a set of areas called study units. These study units represent the diverse geography, water resources, and land and water uses of the Nation. The island of Oahu, Hawaii, is one such study unit designed to supplement water-quality information collected in other study units across the Nation while addressing issues relevant to the island of Oahu.

  17. STANDARDIZING QUALITY ASSESSMENT OF FUSED REMOTELY SENSED IMAGES

    Directory of Open Access Journals (Sweden)

    C. Pohl

    2017-09-01

    Full Text Available The multitude of available operational remote sensing satellites led to the development of many image fusion techniques to provide high spatial, spectral and temporal resolution images. The comparison of different techniques is necessary to obtain an optimized image for the different applications of remote sensing. There are two approaches in assessing image quality: 1. Quantitatively by visual interpretation and 2. Quantitatively using image quality indices. However an objective comparison is difficult due to the fact that a visual assessment is always subject and a quantitative assessment is done by different criteria. Depending on the criteria and indices the result varies. Therefore it is necessary to standardize both processes (qualitative and quantitative assessment in order to allow an objective image fusion quality evaluation. Various studies have been conducted at the University of Osnabrueck (UOS to establish a standardized process to objectively compare fused image quality. First established image fusion quality assessment protocols, i.e. Quality with No Reference (QNR and Khan's protocol, were compared on varies fusion experiments. Second the process of visual quality assessment was structured and standardized with the aim to provide an evaluation protocol. This manuscript reports on the results of the comparison and provides recommendations for future research.

  18. Standardizing Quality Assessment of Fused Remotely Sensed Images

    Science.gov (United States)

    Pohl, C.; Moellmann, J.; Fries, K.

    2017-09-01

    The multitude of available operational remote sensing satellites led to the development of many image fusion techniques to provide high spatial, spectral and temporal resolution images. The comparison of different techniques is necessary to obtain an optimized image for the different applications of remote sensing. There are two approaches in assessing image quality: 1. Quantitatively by visual interpretation and 2. Quantitatively using image quality indices. However an objective comparison is difficult due to the fact that a visual assessment is always subject and a quantitative assessment is done by different criteria. Depending on the criteria and indices the result varies. Therefore it is necessary to standardize both processes (qualitative and quantitative assessment) in order to allow an objective image fusion quality evaluation. Various studies have been conducted at the University of Osnabrueck (UOS) to establish a standardized process to objectively compare fused image quality. First established image fusion quality assessment protocols, i.e. Quality with No Reference (QNR) and Khan's protocol, were compared on varies fusion experiments. Second the process of visual quality assessment was structured and standardized with the aim to provide an evaluation protocol. This manuscript reports on the results of the comparison and provides recommendations for future research.

  19. Is the Learning Community of Economics and Accounting Effective? Empirical Assessment of Class Achievements

    Science.gov (United States)

    Stumph, Carolyn Fabian; Kim, Myeong Hwan; Han, Yongseung; Minke, Susan

    2017-01-01

    Learning communities are increasingly used at colleges and universities, as one of the goals of a learning community is to increase interaction among students and teach them how to apply knowledge. The goal of this research is to assess the learning community of the economics and accounting students in their class performance measured by class…

  20. Assessment in Play-Based Kindergarten Classrooms: An Empirical Study of Teacher Perspectives and Practices

    Science.gov (United States)

    Pyle, Angela; DeLuca, Christopher

    2017-01-01

    Kindergarten education is changing. Current reforms have increased accountability structures requiring teachers to integrate assessments throughout their instruction to support academic learning while retaining developmentally appropriate pedagogies such as play-based learning. Despite these reforms, comparatively little research has been…

  1. Stakeholders Perceptions of a Universal Sustainability Assessment in Higher Education--A Review of Empirical Evidence

    Science.gov (United States)

    Maragakis, Antonios; van den Dobbelsteen, Andy; Maragakis, Alexandros

    2016-01-01

    The progress of sustainability within higher education has steadily increased in focus over the last decade and has increasingly become a topic of academic research. As institutions investigate, implement and market sustainability efforts, there is a myriad of sustainability assessment methodologies currently available. This assortment of…

  2. Competencies in Geriatric Nursing: Empirical Evidence from a Computer-Based Large-Scale Assessment Calibration Study

    Science.gov (United States)

    Kaspar, Roman; Döring, Ottmar; Wittmann, Eveline; Hartig, Johannes; Weyland, Ulrike; Nauerth, Annette; Möllers, Michaela; Rechenbach, Simone; Simon, Julia; Worofka, Iberé

    2016-01-01

    Valid and reliable standardized assessment of nursing competencies is needed to monitor the quality of vocational education and training (VET) in nursing and evaluate learning outcomes for care work trainees with increasingly heterogeneous learning backgrounds. To date, however, the modeling of professional competencies has not yet evolved into…

  3. Total Quality Management of Information System for Quality Assessment of Pesantren Using Fuzzy-SERVQUAL

    Science.gov (United States)

    Faizah, Arbiati; Syafei, Wahyul Amien; Isnanto, R. Rizal

    2018-02-01

    This research proposed a model combining an approach of Total Quality Management (TQM) and Fuzzy method of Service Quality (SERVQUAL) to asses service quality. TQM implementation was as quality management orienting on customer's satisfaction by involving all stakeholders. SERVQUAL model was used to measure quality service based on five dimensions such as tangible, reliability, responsiveness, assurance, and empathy. Fuzzy set theory was to accommodate subjectivity and ambiguity of quality assessment. Input data consisted of indicator data and quality assessment aspect. Input data was, then, processed to be service quality assessment questionnaires of Pesantren by using Fuzzy method to get service quality score. This process consisted of some steps as follows : inputting dimension and questionnaire data to data base system, filling questionnaire through system, then, system calculated fuzzification, defuzzification, gap of quality expected and received by service receivers, and calculating each dimension rating showing quality refinement priority. Rating of each quality dimension was, then, displayed at dashboard system to enable users to see information. From system having been built, it could be known that tangible dimension had the highest gap, -0.399, thus it needs to be prioritized and gets evaluation and refinement action soon.

  4. Combining catchment and instream modelling to assess physical habitat quality

    DEFF Research Database (Denmark)

    Olsen, Martin

    the physical habitat quality of stream Ledreborg using af habitat hydraulic model • to assess the present and potential physical habitat quality of stream Ledreborg • to evaluate the suitability and applicability of habitat hydraulic models to Danish stream management Results • Precipitation and evaporation...... the best potential physical habitat quality for trout fry and juvenile trout and the lowest potential physical habitat quality for adult trout. This finding supports previous evaluations of the stream as a trout habitat, concluding that stream Ledreborg has very few suitable habitats for adult trout...... in the modelling. • Although more time consuming than present Danish methods for assessment of physical habitat quality in streams, the habitat hydraulic models can be used to evaluate physical habitat conditions at reach level and work as a basis for a more objective assessment method....

  5. Prior learning assessment and quality assurance practice ...

    African Journals Online (AJOL)

    The use of RPL (Recognition of Prior Learning) in higher education to assess RPL candidates for admission into programmes of study met with a lot of criticism from faculty academics. Lecturers viewed the possibility of admitting large numbers of under-qualified adult learners, as a threat to the institution's reputation, or an ...

  6. the research quality plus (rq+) assessment instrument

    International Development Research Centre (IDRC) Digital Library (Canada)

    sclarke

    the research, and the extent to which attention to integrity is reflected in the research outputs. Ways of judging integrity will differ for qualitative, quantitative or mixed methods designs; care should be taken to ensure that appropriate standards are applied for each case. In making this assessment, external reviewers should ...

  7. Questioning the Technical Quality of Performance Assessment.

    Science.gov (United States)

    Baker, Eva L.

    1993-01-01

    Ongoing research finds that alternatives to formal tests carry hidden costs and require trade-offs. National Center for Research on Evaluation, Standards, and Student Testing (CRESST) is studying how performance assessments work so that they may be designed to help students reach their highest potential. This article raises priority questions,…

  8. Assessment of physicochemical qualities, heavy metal ...

    African Journals Online (AJOL)

    Ogbe

    2012-08-23

    Aug 23, 2012 ... flame and single element hollow cathode lamp. Isolation, detection and estimation of bacteria ..... Earth Sci. 1:45-53. Aktar MW, Paramasivam M, Ganguly M, Purkait S, Sengupta D (2010). Assessment and occurrence of various heavy metals in surface water of Ganga river around Kolkata: a study for toxicity ...

  9. Hydrochemical characteristics and quality assessment of ...

    African Journals Online (AJOL)

    Physiochemical assessment of shallow groundwater in Gboloko area was carried out to determine its suitability for drinking and irrigation purposes. Eighteen (18) groundwater samples were collected from different rural communities' wells and subjected field measurements of physical parameters followed by chemical ...

  10. Combining Self-Assessments and Achievement Tests in Information Literacy Assessment: Empirical Results and Recommendations for Practice

    Science.gov (United States)

    Rosman, Tom; Mayer, Anne-Kathrin; Krampen, Günter

    2015-01-01

    This article examines the significance of information literacy self-assessments in higher education with a special focus on situational conditions increasing their explanatory power. First, it was hypothesised that self-assessments of information literacy correlate higher with factual information literacy if measured after the administration of…

  11. AN EMPIRICAL ASSESSMENT OF THE WALKING ENVIRONMENT IN A MEGACITY: CASE STUDY OF VALIASR STREET, TEHRAN

    Directory of Open Access Journals (Sweden)

    Bahareh Motamed

    2016-11-01

    Full Text Available High air pollution, car dependency, and increasing statistics of obesity and cardiovascular diseases are growing issues in the mega city of Tehran, the capital city of Iran. Therefore, investigating the quality of walkability as an effective solution for these issues in Valiasr Street, the longest street of Middle East and one of the key vena of Tehran, becomes significant. Research shows that despite the attempts of executed projects, the majority of implemented actions in this street were not in accordance with services of its pedestrian facilities. Even in some cases, they may threaten the walking environment. This paper discusses not only the physical features of Valiasr Street but it also considers the consequences of policies and municipal decisions in light of walkability criteria. Using walkability indexes from various scholars, this study seeks to investigate the level of walkability in Valiasr Street through field observation and mapping by trained observers/ auditors.

  12. EMPIRICAL ASSESSMENT OF MICROFINANCE BANKS IN NIGERIA USING EFQM EXCELLENCE MODEL

    Directory of Open Access Journals (Sweden)

    Chijioke Nwachukwu

    2017-06-01

    Full Text Available Measuring the performance of microfinance banks ensure that the banks create value for their various stakeholders. Achieving and sustaining superior business performance is important for organisations. The goal of this study is to assess microfinance banks in Nigeria using EFQM Excellence Model. The study adapts the EFQM self- assessment questionnaire for collecting data from 53 senior staff of selected Microfinance banks in Nigeria. In analyzing our data, Pearson correlation, ANOVA, and multiple regression techniques were used. The result shows that a significant positive association exists between the enablers (leadership, strategy, people, partnerships and resources, processes, products, and services and results (customer, people, society, and business criterion. More important, all the 4 hypotheses are supported. The authors suggest that a robust performance management system that integrates leadership, strategy, people, resources, processes, products, and services are important to achieve and sustain excellent results for various stakeholders.

  13. Reporting of Human Genome Epidemiology (HuGE association studies: An empirical assessment

    Directory of Open Access Journals (Sweden)

    Gwinn Marta

    2008-05-01

    Full Text Available Abstract Background Several thousand human genome epidemiology association studies are published every year investigating the relationship between common genetic variants and diverse phenotypes. Transparent reporting of study methods and results allows readers to better assess the validity of study findings. Here, we document reporting practices of human genome epidemiology studies. Methods Articles were randomly selected from a continuously updated database of human genome epidemiology association studies to be representative of genetic epidemiology literature. The main analysis evaluated 315 articles published in 2001–2003. For a comparative update, we evaluated 28 more recent articles published in 2006, focusing on issues that were poorly reported in 2001–2003. Results During both time periods, most studies comprised relatively small study populations and examined one or more genetic variants within a single gene. Articles were inconsistent in reporting the data needed to assess selection bias and the methods used to minimize misclassification (of the genotype, outcome, and environmental exposure or to identify population stratification. Statistical power, the use of unrelated study participants, and the use of replicate samples were reported more often in articles published during 2006 when compared with the earlier sample. Conclusion We conclude that many items needed to assess error and bias in human genome epidemiology association studies are not consistently reported. Although some improvements were seen over time, reporting guidelines and online supplemental material may help enhance the transparency of this literature.

  14. National Impact Assessment of CMS Quality Measures Reports

    Data.gov (United States)

    U.S. Department of Health & Human Services — The National Impact Assessment of the Centers for Medicare and Medicaid Services (CMS) Quality Measures Reports (Impact Reports) are mandated by section 3014(b), as...

  15. No-Reference Video Quality Assessment by HEVC Codec Analysis

    DEFF Research Database (Denmark)

    Huang, Xin; Søgaard, Jacob; Forchhammer, Søren

    2015-01-01

    This paper proposes a No-Reference (NR) Video Quality Assessment (VQA) method for videos subject to the distortion given by High Efficiency Video Coding (HEVC). The proposed assessment can be performed either as a BitstreamBased (BB) method or as a Pixel-Based (PB). It extracts or estimates...... the transform coefficients, estimates the distortion, and assesses the video quality. The proposed scheme generates VQA features based on Intra coded frames, and then maps features using an Elastic Net to predict subjective video quality. A set of HEVC coded 4K UHD sequences are tested. Results show...... that the quality scores computed by the proposed method are highly correlated with the subjective assessment....

  16. PIE Nacelle Flow Analysis and TCA Inlet Flow Quality Assessment

    Science.gov (United States)

    Shieh, C. F.; Arslan, Alan; Sundaran, P.; Kim, Suk; Won, Mark J.

    1999-01-01

    This presentation includes three topics: (1) Analysis of isolated boattail drag; (2) Computation of Technology Concept Airplane (TCA)-installed nacelle effects on aerodynamic performance; and (3) Assessment of TCA inlet flow quality.

  17. Assessment of quality of drinking water in Amasaman, Accra (Ghana ...

    African Journals Online (AJOL)

    , IOA Hodgson, JA Ampofo, SJ Cobbina, JE Koku. Abstract. The physico-chemical and microbial quality attributes of untreated water samples from hand dug wells and treated water delivered by tankers (mobile services) were assessed to ...

  18. Water quality assessment of selected domestic water sources in ...

    African Journals Online (AJOL)

    . The town is witnessing rapid urban expansion with increasing demand in water use, without expansion in the existing water facilities. The research assessed water quality of selected water sources in Dutsinma town. Five (5) categories of ...

  19. Quality Assessment and Improvement Methods in Statistics – what Works?

    Directory of Open Access Journals (Sweden)

    Hans Viggo Sæbø

    2014-12-01

    Full Text Available Several methods for quality assessment and assurance in statistics have been developed in a European context. Data Quality Assessment Methods (DatQAM were considered in a Eurostat handbook in 2007. These methods comprise quality reports and indicators, measurement of process variables, user surveys, self-assessments, audits, labelling and certifi cation. The entry point for the paper is the development of systematic quality work in European statistics with regard to good practices such as those described in the DatQAM handbook. Assessment is one issue, following up recommendations and implementation of improvement actions another. This leads to a discussion on the eff ect of approaches and tools: Which work well, which have turned out to be more of a challenge, and why? Examples are mainly from Statistics Norway, but these are believed to be representative for several statistical institutes.

  20. Quality assessment of groundwater from shallow aquifers in Hong ...

    African Journals Online (AJOL)

    Quality assessment of groundwater from shallow aquifers in Hong area, Adamawa state, northeastern Nigeria. ... The high content of fluoride and iron in the groundwater may have contributed to the high EC and TDS especially during the rainy season when the rate of leaching and infiltration is high. Keywords: Quality ...

  1. water quality assessment of selected domestic water sources in ...

    African Journals Online (AJOL)

    Nwokem et al.

    with increasing demand in water use, without expansion in the existing water facilities. The research assessed water quality ... were collected in clean sterilized plastic bottles in the rainy season and taken for laboratory analysis. ... The essential nature of water to man's daily usage vis-à-vis quantity and quality right from time ...

  2. Assessment of changes in drinking water quality during distribution ...

    African Journals Online (AJOL)

    The quality of drinking water at the point of delivery to the consumer is crucial in safeguarding people's health. This study assesses changes in drinking water quality during distribution at Area 25 Township in Lilongwe, Malawi. Water samples were collected from the exit point of the treatment plant, storage tank and taps at ...

  3. Rainwater Quality Assessment in Uyo Metropolis using Water ...

    African Journals Online (AJOL)

    Rainwater is source of water for drinking and for other purposes in Akwa Ibom State. Water quality index (WQI) was used to assess the quality of rainwater in Uyo metropolis, and pollution index to identify the individual parameter that was of risk. Twenty-two physiocochemical parameters and seven toxic metals were ...

  4. Quality assessment in small businesses: the case of Dutch culinary ...

    African Journals Online (AJOL)

    ... are very important in customer decision-making. This research will stimulate discourse on quality in the relatively underexplored sector of culinary restaurant small businesses. Keywords:culinary restaurants, quality assessment, service management, small business. Research in Hospitality Management 2012, 1(2): 75–84 ...

  5. Food quality assessment in parent-offspring dyads

    DEFF Research Database (Denmark)

    Bech-Larsen, Tino; Jensen, Birger Boutrup

    When the buyer and the consumer of a food product are not identical, the risk of discrepancies between food quality expectations and experiences is even higher. We introduce the concept of dyadic quality assessment and apply it to an exploration of parents' willingness to pay for new and healthier...

  6. quality assessment of sandcrete blocks produced in adeta, kwara ...

    African Journals Online (AJOL)

    HOD

    The durability of a building is determined to a great extent by the quality of materials used in its construction. Sandcrete block is a major building material in Nigeria. This research assessed the quality of blocks produced in. Adeta, Ilorin West Local Government Area of Kwara State, Nigeria. Eight block factories were selected ...

  7. Assessment of protein quality of processed melon seed as a ...

    African Journals Online (AJOL)

    Ninety six day - old broiler chicks were used in a 4 - week feeding trial to determine the protein quality of processed melon seed as a component of broiler chick diet. The protein quality was assessed using blood associated parameters including Haemoglobin indices and selected serum enzymes. The processed melon ...

  8. Quality Assessment of Family Planning Services in Ife/Ijesa ...

    African Journals Online (AJOL)

    Context: Medical audit in healthcare has a goal to monitor and upgrade the standard of health care in a setting. Whether a client will accept, use effectively and continue to practice contraception depends on the quality of services rendered. Objective: To assess the quality of our family planning services as perceived by our ...

  9. Assessment of Physico-chemical and Microbiological qualities of ...

    African Journals Online (AJOL)

    Assessment of Physico-chemical and Microbiological qualities of Abattoir Wastewater in Sokoto, Nigeria. AB Rabah, UJJ Ijah, SB Manga, ML Ibrahim. Abstract. Wastewater samples were collected from three different points in Sokoto (Nigeria) abattoir and the physico-chemical and the microbiological qualities were ...

  10. Assessment of the water quality parameters in relation to fish ...

    African Journals Online (AJOL)

    Physicochemical indices of water body changed seasonally and this necessitated an investigation to assess the water quality parameters of Osinmo reservoir in relation to its fish species. The water quality parameters were measured using standard methods. Results obtained show that the reservoir is alkaline in nature with ...

  11. River Pollution: Part II. Biological Methods for Assessing Water Quality.

    Science.gov (United States)

    Openshaw, Peter

    1984-01-01

    Discusses methods used in the biological assessment of river quality and such indicators of clean and polluted waters as the Trent Biotic Index, Chandler Score System, and species diversity indexes. Includes a summary of a river classification scheme based on quality criteria related to water use. (JN)

  12. External quality assessment of AFB smear microscopy performances ...

    African Journals Online (AJOL)

    External quality assessment of AFB smear microscopy performances and its associated factors in selected private health facilities in Addis Ababa, Ethiopia. ... and poorly maintained equipments; thus, there is a critical need for investments in laboratory infrastructure, capacity building, and quality assurance schemes.

  13. Goals of Peer Assessment and Their Associated Quality Concepts

    Science.gov (United States)

    Gielen, Sarah; Dochy, Filip; Onghena, Patrick; Struyven, Katrien; Smeets, Stijn

    2011-01-01

    The output of peer assessment in higher education has been investigated increasingly in recent decades. However, this output is evaluated against a variety of quality criteria, resulting in a cluttered picture. This article analyses the different conceptualisations of quality that appear in the literature. Discussions about the most appropriate…

  14. Promoting quality in the actuarial assessment of quantum of ...

    African Journals Online (AJOL)

    This paper applies a quality framework theory to a field of actuarial practice. The paper is relevant to the professionalism of actuaries in general, and to those who assess the quantum of damages in particular. Quality framework theories propose that practitioners need to apply a range of technical and normative capabilities ...

  15. Water quality assessment and mapping using inverse distance ...

    African Journals Online (AJOL)

    Water quality assessment and mapping using inverse distance weighted interpolation: a case of River Kaduna, Nigeria. ... Several researchers have studied the water quality of the upper and lower stretches of River Kaduna with little on the middle stretch of the river. Besides, no work has ever been done on mapping the ...

  16. Assessment of water quality of Obueyinomo River, Ovia North East ...

    African Journals Online (AJOL)

    This study was carried out to assess the water quality of Obueyinomo River using water quality index. Ambient and water temperatures were determined in-situ while total dissolved solids (TDS), total suspended solids (TSS), total solids (TS), turbidity, pH, conductivity, hardness, alkalinity, dissolved Oxygen (DO), ...

  17. Original Research Article In Vitro Assessment of Quality Control ...

    African Journals Online (AJOL)

    Erah

    medication and with a resultant effect of inability of the patient to ... Quality control parameters are important tools that can be used in assessing the genuine quality of content before their consideration for possible substitution and/or interchangeability of different ... nifedipine is a calcium channel blocker, which in addition to ...

  18. Quality assessment of home births in Denmark

    DEFF Research Database (Denmark)

    Jensen, Sabrina; Colmorn, Lotte B.; Schroll, Anne-Mette

    2017-01-01

    INTRODUCTION: The safety of home births has been widely debated. Observational studies examining maternal and neonatal outcomes of home births have become more frequent, and the quality of these studies has improved. The aim of the present study was to describe neonatal outcomes of home births...... compared with hospital births and to discuss which data are needed to evaluate the safety of home births. METHODS: This was a register-based cohort study. Data on all births in Denmark (2003-2013) were collected from the Danish Medical Birth Registry (DMBR). The cohort included healthy women...... with uncomplicated pregnancies and no medical interventions during delivery. A total of 6,395 home births and 266,604 hospital births were eligible for analysis. Comparative analyses were performed separately in nulliparous and multiparous women. The outcome measures were neonatal mortality and morbidity. RESULTS...

  19. Development of a dementia assessment quality database

    DEFF Research Database (Denmark)

    Johannsen, P.; Jørgensen, Kasper; Korner, A.

    2011-01-01

    database for dementia evaluation in the secondary health system. One volume and seven process quality indicators on dementia evaluations are monitored. Indicators include frequency of demented patients, percentage of patients evaluated within three months, whether the work-up included blood tests, Mini...... Mental State Examination (MMSE), brain scan and activities of daily living and percentage of patients treated with anti-dementia drugs. Indicators can be followed over time in an individual clinic. Up to 20 variables are entered to calculate the indicators and to provide risk factor variables...... with MMSE, and a brain scan is performed in almost all patients. Differences in the prevalence of etiological diagnoses indicate differences in the application of the diagnostic criteria. This has initiated a process to harmonize the use of diagnostic criteria and the MMSE including administration guide...

  20. The Impact of Organizational Structure on Internal and External Integration: An empirical, cross-regional assessment

    Directory of Open Access Journals (Sweden)

    Xenophon Koufteros

    2014-06-01

    Full Text Available We examine the effects of organizational structure on cross-functional integration, supplier integration, and customer integration and assess whether such effects vary by geographical region. Specifically, we investigate the impact of centralization, formalization, and complexity on both internal (cross-functional and external (supplier, customer integration. Relationships are examined across Western and East Asian environments using data collected from 238 manufacturing plants in eight countries. We find that structural features have differing impacts on cross-functional, supplier, and customer integration, and these effects vary across geographical regions.

  1. Soil quality assessment using weighted fuzzy association rules

    Science.gov (United States)

    Xue, Yue-Ju; Liu, Shu-Guang; Hu, Yue-Ming; Yang, Jing-Feng

    2010-01-01

    Fuzzy association rules (FARs) can be powerful in assessing regional soil quality, a critical step prior to land planning and utilization; however, traditional FARs mined from soil quality database, ignoring the importance variability of the rules, can be redundant and far from optimal. In this study, we developed a method applying different weights to traditional FARs to improve accuracy of soil quality assessment. After the FARs for soil quality assessment were mined, redundant rules were eliminated according to whether the rules were significant or not in reducing the complexity of the soil quality assessment models and in improving the comprehensibility of FARs. The global weights, each representing the importance of a FAR in soil quality assessment, were then introduced and refined using a gradient descent optimization method. This method was applied to the assessment of soil resources conditions in Guangdong Province, China. The new approach had an accuracy of 87%, when 15 rules were mined, as compared with 76% from the traditional approach. The accuracy increased to 96% when 32 rules were mined, in contrast to 88% from the traditional approach. These results demonstrated an improved comprehensibility of FARs and a high accuracy of the proposed method.

  2. Using patient evaluations to empirically assess medicaid programs for social justice.

    Science.gov (United States)

    Clark, Paul Alexander; Gesell, Sabina B

    2010-09-01

    The Medicaid program serves a social justice function in the United States. The program's effectiveness in achieving this aim is traditionally evaluated in terms of resource allocation and distribution using measures and concepts such as financing, access, and enrollment. The patient's perspective in ascertaining the quality of actual care delivery has not been utilized to ascertain social justice. This paper uses the confidential evaluations of 40% of the hospitals in Rhode Island, New Jersey, and Connecticut to compare the experiences of Medicaid patients versus privately insured patients hospitalized in 2002 and cross-validates results in independent samples collected in 2003 and 2004. The results found that Medicaid patients experienced interactions with physicians that resulted in lower ratings of statistical and practical significance than privately insured patients. Admissions and discharge processes were also rated lower by Medicaid patients. The "hotel" amenities provided by hospitals-room and meals-were rated more favorably by Medicaid patients. Yet there were no significant differences in Medicaid and private insurance patients' overall satisfaction with their acute care experience. Medicaid patients' evaluations should be considered a key component of evaluating whether a state's Medicaid program has achieved patients' and society's need for social justice.

  3. An Empirical Assessment of Transgene Flow from a Bt Transgenic Poplar Plantation.

    Directory of Open Access Journals (Sweden)

    Jianjun Hu

    Full Text Available To assess the possible impact of transgenic poplar plantations on the ecosystem, we analyzed the frequency and distance of gene flow from a mature male transgenic Populus nigra plantation carrying the Bacillus thuringiensis toxin gene (Bt poplar and the survival of Bt poplar seeds. The resultant Bt poplar seeds occurred at a frequency of ~0.15% at 0 m to ~0.02% at 500 m from the Bt poplar plantation. The germination of Bt poplar seeds diminished within three weeks in the field (germination rate from 68% to 0% compared to 48% after three weeks of storage at 4°C. The survival rate of seedlings in the field was 0% without any treatment but increased to 1.7% under the addition of four treatments (cleaning and trimming, watering, weeding, and covering with plastic film to maintain moisture after being seeded in the field for eight weeks. The results of this study indicate that gene flow originating from the Bt poplar plantation occurred at an extremely low level through pollen or seeds under natural conditions. This study provides first-hand field data on the extent of transgene flow in poplar plantations and offers guidance for the risk assessment of transgenic poplar plantations.

  4. Preliminary quality assessment of bovine colostrum

    Directory of Open Access Journals (Sweden)

    Alessandro Taranto

    2013-02-01

    Full Text Available Data on bovine colostrum quality are scarce or absent, although Commission Regulations No 1662/2006 and No 1663/2006 include colostrum in the context of chapters on milk. Thus the aim of the present work is to study some physical, chemical, hygiene and safety quality parameters of bovine colostrum samples collected from Sicily and Calabria dairy herds. Thirty individual samples were sampled after 2-3 days from partum. The laboratory tests included: pH, fat (FT, total nitrogen (TN, lactose (LTS and dry matter (NM percentage (Lactostar and somatic cell count (CCS (DeLaval cell counter DCC. Bacterial counts included: standard plate count (SPC, total psychrophilic aerobic count (PAC, total, fecal coliforms by MPN (Most Probable Number, sulphite-reducing bacteria (SR. Salmonella spp. was determined. Bacteriological examinations were performed according to the American Public Health Association (APHA methods, with some adjustements related to the requirements of the study. Statistical analysis of data was performed by Spearman’s rank correlation coefficient. The results showed a low variability of pH values and FT, TN and DM percentage between samples; whereas LTS trend was less noticeable. A significant negative correlation (P<0.01 was observed between pH, TN and LTS amount. The correlation between LTS and TN contents was highly significant (P<0.001. Highly significant and negative was the correlation (P<0.001 between DM, NT and LTS content. SPC mean values were 7.54 x106 CFU/mL; PAC mean values were also high (3.3x106 CFU/mL. Acceptable values of coagulase positive staphylococci were showed; 3 Staphylococcus aureus and 1 Staphylococcus epidermidis strains was isolated. Coagulase negative staphylococci counts were low. A high variability in the number of TC, as for FC was observed; bacterial loads were frequently fairly high. Salmonella spp. and SR bacteria were absent. It was assumed that bacteria from samples had a prevailing environmental origin

  5. Probabilistic seismic hazard assessment of Bishkek, Kyrgyzstan, considering empirically estimated site effects

    Directory of Open Access Journals (Sweden)

    Shahid Ullah

    2015-04-01

    Full Text Available It is well known that variability in the surface geology potentially leads to the modification of earthquake-induced ground motion over short distances. Although this effect is of major importance when seismic hazard is assessed at the urban level, it is very often not appropriately accounted for. In this paper, we present a first attempt at taking into account the influence of the shallow geological structure on the seismic hazard assessment for Bishkek, Kyrgyzstan, using a proxy (Vs30 that has been estimated from in situ seismic noise array analyses, and considering response spectral ratios calculated by analyzing a series of earthquake recordings of a temporary seismic network. To highlight the spatial variability of the observed ground motion, the obtained results are compared with those estimated assuming a homogeneous Vs30 value over the whole urban area. The seismic hazard is evaluated in terms of peak ground acceleration (PGA and spectral acceleration (SA at different periods (frequencies. The presented results consider the values obtained for a 10% probability of exceedance in 50 years. The largest SA estimated considering a rock site classification of the area (0.43 g is observed for a period of 0.1 s (10 Hz, while the maximum PGA reaches 0.21 g. When site effects are included through the Vs30 proxy in the seismic hazard calculation, the largest SA, 0.67 g, is obtained for a period of 0.3 s (about 3.3 Hz. In terms of PGA, in this case the largest estimated value reaches 0.31 g in the northern part of the town. When the variability of ground motion is accounted for through response spectrum ratios, the largest SA reaches a value as high as 1.39 g at a period of 0.5 s. In general, considering site effects in the seismic hazard assessment of Bishkek leads to an increase of seismic hazard in the north of the city, which is thus identified as the most hazardous part within the study area and which is more far away from the faults.

  6. An Empirical Study on the Effect of Different Technology Environments on Students’ Assessment

    DEFF Research Database (Denmark)

    Khalid, Md. Saifuddin; Sujan, Khaled Mahmud; Haque, Indrani

    2011-01-01

    Multiple choice question (MCQ)-based assessment for higher education students can be a solution to reduce workload where teacher-student ratio is significantly high and also in distance learning approaches. Originating from the users problem claiming that “web-based and mobile-based tests...... experienced in implementing such web-based and SMS based system in Bangladesh are discussed. In Bangladesh, some telecentres has been established by government and NGOs which are engaged in educating people in the rural and remote areas of the country. This low-cost SMS-based testing can be used for testing...... in Bangladesh attended MCQ tests under the same instructor’s lecture and appeared for the tests using paper based, web-based and mobile SMS-based testing systems. Results of such tests are analyzed. The variance test shows that paper-based, web-based and mobile-based test scores do not vary. Problems...

  7. An empirical approach to the credit risk assessment of a microfinance institution in Peru

    Directory of Open Access Journals (Sweden)

    Juan Lara Rubio

    2011-06-01

    Full Text Available The growth of micro-credit along with the excellent conditions to carry out microfinance activity in the economy and financial system of the Republic of Peru are pushing for Microfinance Institutions (IMF increased competition with banks in this segment business. Like in commercial banks, in microfinance questions such as: is this customer profitable?, What is the credit limit that I must accept to his/her application?, What interest rate should I charge to him/ her?, How I can reduce the risk default?, etc., are matters to be assessed properly. We propose a method that could facilitate improvement in customer qualification between failed and not failed. To this end, we propose a methodology that analyzes credit risk in the provision of microcredit through the design of a credit scoring model that we apply to a Development Agency for Small and Micro Enterprise (EDPYME, which is an IMF under the supervision by the Banking and Insurance Superintendency (SBS.

  8. An empirical exploration of metacognitive assessment activities in a third-year civil engineering hydraulics course

    Science.gov (United States)

    Meyer, Jan H. F.; Knight, David B.; Callaghan, David P.; Baldock, Tom E.

    2015-05-01

    Threshold concepts are transformative, integrative, and provocative; understanding these difficult concepts allows students to be capable of solving advanced problems. This investigation and evaluation of a metacognitive curricular approach explore variation in students' and teachers' discernment of structural complexity of concepts and its potential for enhancing students' learning and conceptual understanding of threshold concepts. Three trials of a metacognitive assessment activity administered to two cohorts of a civil engineering course (n = 276 and n = 264) were investigated. Students were presented with several answers (varying in structural complexity) to a question about a threshold concept and asked to mark each response. Quantitative analyses compared students' and teachers' marking schemes within and across trials, and qualitative analyses explored students' written reflections following the activity. Students' justifications for their marking schemes, their reflections on the activity's usefulness, and the convergence of students' and teachers' marking schemes suggest that the activity supported deep forms of student learning.

  9. Comparison of tools for assessing the methodological quality of primary and secondary studies in health technology assessment reports in Germany

    Directory of Open Access Journals (Sweden)

    Walter, Ulla

    2010-01-01

    items of internal validity but also the items of quality of reporting and external validity. No tool covers all elements or domains. Design-specific generic tools are presented, which cover most of the content criteria. Discussion: The evaluation of QAT by using content criteria is difficult, because there is no scientific consensus on the necessary elements of internal validity, and not all of the generally accepted elements are based on empirical evidence. Comparing QAT with regard to contents neglects the operationalisation of the respective parameters, for which the quality and precision are important for transparency, replicability, the correct assessment and interrater reliability. QAT, which mix items on the quality of reporting and internal validity, should be avoided. Conclusions: There are different, design-specific tools available which can be preferred for quality assessment, because of its wider coverage of substantive elements of internal validity. To minimise the subjectivity of the assessment, tools with a detailed and precise operationalisation of the individual elements should be applied. For health economic studies, tools should be developed and complemented with instructions, which define the appropriateness of the criteria. Further research is needed to identify study characteristics that influence the internal validity of studies.

  10. An Empirical Typology of Tree Species Assemblages across the U.S. for Assessing Climate Change Threats to Forest Communities

    Science.gov (United States)

    Costanza, J. K.; Coulston, J.; Wear, D. N.

    2016-12-01

    An understanding of how the composition of forest tree communities will change in the future is critical for assessing the effects of climate change on forests. Recent research suggests that simply knowing the responses of individual species to changing climate does not adequately capture likely community-level response. In part, this is because some tree species in a community play a larger role than others, and thus, any climate change effects on those species will have greater effects on the associated forest tree community. As the basis of an assessment of climate change impacts to forest communities, we used hierarchical cluster analysis of over 120,000 recent forest inventory plots to empirically define forest tree communities across the U.S. We then used indicator species analysis to define the important tree species in each community. The result was a U.S.-wide typology of 29 clusters representing empirical forest communities. Clusters contained between six and 30,000 inventory plots each, and were associated with between one and twelve indicator species. We show how these clusters can be used to assess forest community-level climate change impacts. For a subset of clusters in the eastern U.S., we overlaid projected habitat suitability maps from USDA Forest Service Climate Change Tree Atlas for the indicator species under two climate change scenarios for the end of the century. Climate change threat results ranged widely for both scenarios, showing an average loss of habitat across all indicator species in some communities, and an average gain for others. For example, the balsam fir-quaking aspen community in the northeastern U.S. was projected to see the most loss of habitat for indicator species, with a change of 47.0% and 73.4% in importance value under the low and high climate change scenarios, respectively. Conversely, the indicator species in the green ash-American elm community were projected to see gains of 32.7% and 117.4% in importance value in

  11. Measuring data quality for ongoing improvement a data quality assessment framework

    CERN Document Server

    Sebastian-Coleman, Laura

    2013-01-01

    The Data Quality Assessment Framework shows you how to measure and monitor data quality, ensuring quality over time. You'll start with general concepts of measurement and work your way through a detailed framework of more than three dozen measurement types related to five objective dimensions of quality: completeness, timeliness, consistency, validity, and integrity. Ongoing measurement, rather than one time activities will help your organization reach a new level of data quality. This plain-language approach to measuring data can be understood by both business and IT and provides pra

  12. Economic Journal in Russia: Quality Assessment Issues

    Directory of Open Access Journals (Sweden)

    Ol’ga Valentinovna Tret’yakova

    2016-05-01

    Full Text Available The paper attempts to assess economic journals included in the List of peer-reviewed scientific journals and editions that are authorized to publish the principal research findings of doctoral (candidate’s dissertations (the VAK List, it was established by the Decision of the Ministry of Education and Science of the Russian Federation and entered into force on December 01, 2016. The general assessment of the journals that include more than 380 titles is carried out by analyzing their bibliometric indicators in the system of the Russian Science Citation Index, in particular, by examining the values of their impact factors. The analysis conducted at the Institute of Socio-economic Development of Territories of RAS shows that a relatively small number of economic journals publish a significant proportion of articles that obtain a large share of citations. The author reveals that the new VAK List includes over 50% of journals specializing in economic sciences, which have a lower level of citation or which are virtually not cited at all. This indirectly indicates that such journals are “left behind” the “main stream of science”, that their significance is local, availability low, attractiveness for the audience and scientific authority insufficient. The analysis proves that when forming the list of peer-reviewed scientific publications recommended for publication of dissertation research findings, along with other criteria, it is advisable to use tools that help assess the level of the journal. It is very important that the evaluation had quantitative expression and served as a specific measure for ranking the journals. One of these tools may be a criterion value for the two-year impact factor, which helps identify journals with a sufficient citation level. The paper presents the results of analysis of the RSCI list, which was proposed by the Council for Science under the Ministry of Education and Science of the Russian Federation as an

  13. Assessing quality management in an R and D environment

    Energy Technology Data Exchange (ETDEWEB)

    Thompson, B.D.

    1998-02-01

    Los Alamos National Laboratory (LANL) is a premier research and development institution operated by the University of California for the US Department of Energy. Since 1991, LANL has pursued a heightened commitment to developing world-class quality in management and operations. In 1994 LANL adopted the Malcolm Baldrige National Quality Award criteria as a framework for all activities and initiated more formalized customer focus and quality management. Five measurement systems drive the current integration of quality efforts: an annual Baldrige-based assessment, a customer focus program, customer-driven performance measurement, an employee performance management system and annual employee surveys, and integrated planning processes with associated goals and measures.

  14. Quality Assessment in the Logistics of Rail Passenger Transport

    Directory of Open Access Journals (Sweden)

    Dedík Milan

    2017-01-01

    Full Text Available The article is focused on analysis and rating of the quality in the passenger railway transport logistics. At first is described the relationships between logistics and transport, logistical demands for transport and functions of logistics in rail transport. In the third chapter is explained quality assessment including the description of the quality indicators in passenger rail transport and making a proposal of the new methodology for this rating. Consequently this methodology is tested for chosen transport route and is concerned with monitoring quality of the transport routes in the railway network.

  15. The art of assessing quality for images and video

    International Nuclear Information System (INIS)

    Deriche, M.

    2011-01-01

    The early years of this century have witnessed a tremendous growth in the use of digital multimedia data for di?erent communication applications. Researchers from around the world are spending substantial research efforts in developing techniques for improving the appearance of images/video. However, as we know, preserving high quality is a challenging task. Images are subject to distortions during acquisition, compression, transmission, analysis, and reconstruction. For this reason, the research area focusing on image and video quality assessment has attracted a lot of attention in recent years. In particular, compression applications and other multimedia applications need powerful techniques for evaluating quality objectively without human interference. This tutorial will cover the di?erent faces of image quality assessment. We will motivate the need for robust image quality assessment techniques, then discuss the main algorithms found in the literature with a critical perspective. We will present the di?erent metrics used for full reference, reduced reference and no reference applications. We will then discuss the difference between image and video quality assessment. In all of the above, we will take a critical approach to explain which metric can be used for which application. Finally we will discuss the different approaches to analyze the performance of image/video quality metrics, and end the tutorial with some perspectives on newly introduced metrics and their potential applications.

  16. Defining wet season water quality target concentrations for ecosystem conservation using empirical light attenuation models: A case study in the Great Barrier Reef (Australia).

    Science.gov (United States)

    Petus, Caroline; Devlin, Michelle; Teixera da Silva, Eduardo; Lewis, Stephen; Waterhouse, Jane; Wenger, Amelia; Bainbridge, Zoe; Tracey, Dieter

    2018-05-01

    Optically active water quality components (OAC) transported by flood plumes to nearshore marine environments affect light levels. The definition of minimum OAC concentrations that must be maintained to sustain sufficient light levels for conservation of light-dependant coastal ecosystems exposed to flood waters is necessary to guide management actions in adjacent catchments. In this study, a framework for defining OAC target concentrations using empirical light attenuation models is proposed and applied to the Wet Tropics region of the Great Barrier Reef (GBR) (Queensland, Australia). This framework comprises several steps: (i) light attenuation (Kd(PAR)) profiles and OAC measurements, including coloured dissolved organic matter (CDOM), chlorophyll-a (Chl-a) and suspended particulate matter (SPM) concentrations collected in flood waters; (ii) empirical light attenuation models used to define the contribution of CDOM, Chl-a and SPM to the light attenuation, and; (iii) translation of empirical models into manageable OAC target concentrations specific for wet season conditions. Results showed that (i) Kd(PAR) variability in the Wet Tropics flood waters is driven primarily by SPM and CDOM, with a lower contribution from Chl-a (r2 = 0.5, p reefs and seagrass ecosystems exposed to 'brownish' flood waters. Additional data will be collected to validate the light attenuation models and the wet season target concentration which in future will be incorporated into wider catchment modelling efforts to improve coastal water quality in the Wet Tropics and the GBR. Copyright © 2018 Elsevier Ltd. All rights reserved.

  17. Assessing wine quality using isotopic methods

    International Nuclear Information System (INIS)

    Costinel, Diana; Ionete, Roxana Elena; Vremera, Raluca; Stefanescu, Ioan

    2010-01-01

    Full text: The analytical methods used to determine the isotope ratios of deuterium, carbon-13 and oxygen-18 in wines have gained official recognition from the Office International de la Vigne et du Vin (OIV) and National Organisation of Vine and Wine. The amount of stable isotopes in water and carbon dioxide from plant organic materials and their distribution in sugar and ethanol molecules are influenced by geo-climatic conditions of the region, grape varieties and the year of harvest. For wine characterization, to prove the botanical and geographical origin of the raw material, the isotopic analysis by continuous flow mass spectrometry CF-IRMS has made a significant contribution. This paper emphasize the results of a study concerning the assessing of water adulterated wines and non-grape alcohol and sugar additions at different concentration levels, using CF-IRMS analytical technique. (authors)

  18. Quality assessment in competency based physiotherapy education

    DEFF Research Database (Denmark)

    Brandt, Jørgen

    Purpose: To ensure a transparent and competency related assessment of physiotherapy education, in order to accomplish a close relationship between competencies at entry level to the profession and challenges in current and future health practice. Relevance: Perspectives and metods regarding...... between education and current practice in physiotherapy settings. It is an on going challenge to assure responses from the students both regarding the evaluation of the response and learning level regarding their own perception of the study and their achievement of learning outcomes. Steps are being taken...... rehabilitation and health promotion change with demografic evolvement, health politics and patterns of diseases. This calls for an ever ongoing improvement and adjustment of professional competencies being achieved during physiotherapy education. At the same time the education itself is an entity, comitted...

  19. An innovative road marking quality assessment mechanism using computer vision

    Directory of Open Access Journals (Sweden)

    Kuo-Liang Lin

    2016-06-01

    Full Text Available Aesthetic quality acceptance for road marking works has been relied on subjective visual examination. Due to a lack of quantitative operation procedures, acceptance outcome can be biased and results in great quality variation. To improve aesthetic quality acceptance procedure of road marking, we develop an innovative road marking quality assessment mechanism, utilizing machine vision technologies. Using edge smoothness as a quantitative aesthetic indicator, the proposed prototype system first receives digital images of finished road marking surface and has the images processed and analyzed to capture the geometric characteristics of the marking. The geometric characteristics are then evaluated to determine the quality level of the finished work. System is demonstrated through two real cases to show how it works. In the end, a test comparing the assessment results between the proposed system and expert inspection is conducted to enhance the accountability of the proposed mechanism.

  20. Assessment of quality of anti-corruption state programmes

    Directory of Open Access Journals (Sweden)

    Hubarieva Iryna O.

    2014-01-01

    Full Text Available Complex use of target programming, expert assessment and taxonomic analysis allows assessment of quality of state anti-corruption programmes by such criteria as: integrity, correspondence with regulatory acts, structure and content, scientific justification and ability to solve problems (realisability, at which it is directed, with the aim of improving the quality of state policy documents. The conducted analysis shows low quality of regional anti-corruption policy in structural and content contexts, resource provision and mechanisms of realisation and control, which negatively influences effectiveness of introduction of mechanisms of crime prevention and corruption fighting. Assessment of quality of target regional anti-corruption programmes in Ukraine on the basis of the developed methodical approach confirmed inefficiency of the modern policy approach to solution of problems of reduction of the corruption level in the country.

  1. Criteria for assessment of bridge aesthetic and visual quality

    Science.gov (United States)

    Rozentale, I.; Paeglitis, A.

    2017-10-01

    The bridge designers should find an ideal balance between structure, economy, buildability, aesthetics, durability and harmony with industrial or natural landscape. During the last years, the society has adopted documents providing procedures for evaluation of the impact of the structural appearance on surrounding landscape. The European Landscape Convention defines the landscape as an area perceived by people, whose character is the result of the action and interaction of natural and/or human factors. The Convention indicates the methods for clear and objective assessment of the landscape’s visual qualities. The esthetical qualities of bridge structures, appearance and attraction should satisfy not only the technicians - engineers and architects, but mostly the surrounding population. Each of these groups has a different perception of esthetical qualities of structure. Many authors have used different methods and criteria for assessment of bridge aesthetics. The aim of this paper is to provide an overview of the bridge aesthetic and visual quality assessment methods and criteria.

  2. Compensating for Type-I Errors in Video Quality Assessment

    DEFF Research Database (Denmark)

    Brunnström, Kjell; Tavakoli, Samira; Søgaard, Jacob

    2015-01-01

    This paper analyzes the impact on compensating for Type-I errors in video quality assessment. A Type-I error is to incorrectly conclude that there is an effect. The risk increases with the number of comparisons that are performed in statistical tests. Type-I errors are an issue often neglected in...... in Quality of Experience and video quality assessment analysis. Examples are given for the analysis of subjective experiments and the evaluation of objective metrics by correlation.......This paper analyzes the impact on compensating for Type-I errors in video quality assessment. A Type-I error is to incorrectly conclude that there is an effect. The risk increases with the number of comparisons that are performed in statistical tests. Type-I errors are an issue often neglected...

  3. AVLIS Production Plant Preliminary Quality Assurance Plan and Assessment

    International Nuclear Information System (INIS)

    1984-01-01

    This preliminary Quality Assurance Plan and Assessment establishes the Quality Assurance requirements for the AVLIS Production Plant Project. The Quality Assurance Plan defines the management approach, organization, interfaces, and controls that will be used in order to provide adequate confidence that the AVLIS Production Plant design, procurement, construction, fabrication, installation, start-up, and operation are accomplished within established goals and objectives. The Quality Assurance Program defined in this document includes a system for assessing those elements of the project whose failure would have a significant impact on safety, environment, schedule, cost, or overall plant objectives. As elements of the project are assessed, classifications are provided to establish and assure that special actions are defined which will eliminate or reduce the probability of occurrence or control the consequences of failure. 8 figures, 18 tables

  4. No-reference visual quality assessment for image inpainting

    Science.gov (United States)

    Voronin, V. V.; Frantc, V. A.; Marchuk, V. I.; Sherstobitov, A. I.; Egiazarian, K.

    2015-03-01

    Inpainting has received a lot of attention in recent years and quality assessment is an important task to evaluate different image reconstruction approaches. In many cases inpainting methods introduce a blur in sharp transitions in image and image contours in the recovery of large areas with missing pixels and often fail to recover curvy boundary edges. Quantitative metrics of inpainting results currently do not exist and researchers use human comparisons to evaluate their methodologies and techniques. Most objective quality assessment methods rely on a reference image, which is often not available in inpainting applications. Usually researchers use subjective quality assessment by human observers. It is difficult and time consuming procedure. This paper focuses on a machine learning approach for no-reference visual quality assessment for image inpainting based on the human visual property. Our method is based on observation that Local Binary Patterns well describe local structural information of the image. We use a support vector regression learned on assessed by human images to predict perceived quality of inpainted images. We demonstrate how our predicted quality value correlates with qualitative opinion in a human observer study. Results are shown on a human-scored dataset for different inpainting methods.

  5. Different methods for ethical analysis in health technology assessment: an empirical study.

    Science.gov (United States)

    Saarni, Samuli I; Braunack-Mayer, Annette; Hofmann, Bjørn; van der Wilt, Gert Jan

    2011-10-01

    Ethical analysis can highlight important ethical issues related to implementing a technology, values inherent in the technology itself, and value-decisions underlying the health technology assessment (HTA) process. Ethical analysis is a well-acknowledged part of HTA, yet seldom included in practice. One reason for this is lack of knowledge about the properties and differences between the methods available. This study compares different methods for ethical analysis within HTA. Ethical issues related to bariatric (obesity) surgery were independently evaluated using axiological, casuist, principlist, and EUnetHTA models for ethical analysis within HTA. The methods and results are presented and compared. Despite varying theoretical underpinnings and practical approaches, the four methods identified similar themes: personal responsibility, self-infliction, discrimination, justice, public funding, and stakeholder involvement. The axiological and EUnetHTA models identified a wider range of arguments, whereas casuistry and principlism concentrated more on analyzing a narrower set of arguments deemed more important. Different methods can be successfully used for conducting ethical analysis within HTA. Although our study does not show that different methods in ethics always produce similar results, it supports the view that different methods of ethics can yield relevantly similar results. This suggests that the key conclusions of ethical analyses within HTA can be transferable between methods and countries. The systematic and transparent use of some method of ethics appears more important than the choice of the exact method.

  6. An empirical method for calculating thermodynamic parameters for U(6) phases, applications to performance assessment calculations

    International Nuclear Information System (INIS)

    Ewing, R.C.; Chen, F.; Clark, S.B.

    2002-01-01

    Uranyl minerals form by oxidation and alteration of uraninite, UO 2+x , and the UO 2 in used nuclear fuels. The thermodynamic database for these phases is extremely limited. However, the Gibbs free energies and enthalpies for uranyl phases may be estimated based on a method that sums polyhedral contributions. The molar contributions of the structural components to Δ f G m 0 and Δ f H m 0 are derived by multiple regression using the thermodynamic data of phases for which the crystal structures are known. In comparison with experimentally determined values, the average residuals associated with the predicted Δ f G m 0 and Δ f H m 0 for the uranyl phases used in the model are 0.08 and 0.10%, respectively. There is also good agreement between the predicted mineral stability relations and field occurrences, thus providing confidence in this method for the estimation of Δ f G m 0 and Δ f H m 0 of the U(VI) phases. This approach provides a means of generating estimated thermodynamic data for performance assessment calcination and a basic for making bounding calcination of phase stabilities and solubilities. (author)

  7. Assessing the Potential Economic Viability of Precision Irrigation: A Theoretical Analysis and Pilot Empirical Evaluation

    Directory of Open Access Journals (Sweden)

    Francesco Galioto

    2017-12-01

    Full Text Available The present study explores the value generated by the use of information to rationalize the use of water resources in agriculture. The study introduces the value of information concept in the field of irrigation developing a theoretical assessment framework to evaluate whether the introduction of “Precision Irrigation” (PI practices can improve expectations on income. This is supported by a Stakeholders consultation and by a numerical example, using secondary data and crop growth models. The study reveals that the value generated with the transition to PI varies with pedo-climate, economic, technological and other conditions, and it depends on the initial status of the farmer’s information environment. These factors affect the prerequisite needed to make viable PI. To foster the adoption of PI, stakeholders envisaged the need to set up free meteorological information and advisory service that supports farmers in using PI, as well as other type of instruments. The paper concludes that the profitability of adoption and the relevant impact on the environment cannot be considered as generally given, but must be evaluated case by case justifying (or not the activation of specific agricultural policy measures supporting PI practices to target regions.

  8. A Total Factor Productivity Based Structure for Tactical Cluster Assessment: Empirical Investigation in the Airline Industry

    Science.gov (United States)

    Vasigh, Bijan; Fleming, Kenneth

    2005-01-01

    In this paper we analyze and assess the efficiency of the United States (U.S.) airline industry through the total factor productivity (TFP) method. While airlines use various resources to produce a heterogeneous group of outputs, this article focuses on certain fundamental outputs as final products of selected airlines. The results from this analysis indicate that the national airlines (US. domestic carriers) have higher TFP as compared to the major airlines. While major airlines have drastically cut costs in the past few years, they also need to improve efficiency or risk going out of business. In this paper, we investigate the efficiency and productivity of a selection of U.S. airlines for the years 1996 through 2001. These years have been chosen as a good example of years in which the industry experienced normal growth and generally positively returns. Subsequent to 2001 the industry experienced two severe external shocks, namely, the September 11, 2001. terrorist attacks and the Iraq war. These anomalous shocks make the years after 2001 inconsistent with respect to the type of index developed in this article.

  9. Assessment of scar quality after cleft lip closure

    NARCIS (Netherlands)

    Frans, F.A.; van Zuijlen, P.P.M.; Griot, J.P.W.D.; van der Horst, C.M.A.M.

    2012-01-01

    Objective: To assess scar quality after cleft lip repair. Design: The linear scars of patients with cleft lip with or without cleft palate were evaluated in a prospective study using the Patient and Observer Scar Assessment Scale. Linear regression was performed to identify which scar

  10. Assessment of Anthropogenic Activities on Water Quality of Benin ...

    African Journals Online (AJOL)

    Assessment of water quality was conducted from June to December, 2011 in five stations along the stretch of the Benin River between Ajimele and Koko town in attempt to assess and determine the source of anthropogenic activities affecting the river. Twentyfour parameters have been monitored on 5 sampling stations on a ...

  11. No-Reference Video Quality Assessment by HEVC Codec Analysis

    DEFF Research Database (Denmark)

    Huang, Xin; Søgaard, Jacob; Forchhammer, Søren

    2015-01-01

    This paper proposes a No-Reference (NR) Video Quality Assessment (VQA) method for videos subject to the distortion given by High Efficiency Video Coding (HEVC). The proposed assessment can be performed either as a BitstreamBased (BB) method or as a Pixel-Based (PB). It extracts or estimates the t...

  12. Assessment of scar quality after cleft lip closure

    NARCIS (Netherlands)

    Frans, Franceline A.; van Zuijlen, Paul P. M.; Griot, J. P. W. Don; van der Horst, Chantal M. A. M.

    2012-01-01

    To assess scar quality after cleft lip repair. The linear scars of patients with cleft lip with or without cleft palate were evaluated in a prospective study using the Patient and Observer Scar Assessment Scale. Linear regression was performed to identify which scar characteristics were important

  13. Assessment of microbiological quality of drinking water treated with ...

    African Journals Online (AJOL)

    The quality of drinking water at the point of delivery to the consumer is crucial in safeguarding consumer's health. The current study was undertaken to assess the changes in residual chlorine content with distance in water distribution system in Gwalior city of Madhya Pradesh and assess its relation with the occurrence of ...

  14. External Quality Assessments for Microbiologic Diagnosis of Diphtheria in Europe

    Science.gov (United States)

    Both, Leonard; Neal, Shona; De Zoysa, Aruni; Mann, Ginder; Czumbel, Ida

    2014-01-01

    The European Diphtheria Surveillance Network (EDSN) ensures the reliable epidemiological and microbiologic assessment of disease prevalence in the European Union. Here, we describe a survey of current diagnostic techniques for diphtheria surveillance conducted across the European Union and report the results from three external quality assessment (EQA) schemes performed between 2010 and 2014. PMID:25297336

  15. Evaluating and Enhancing Outcomes Assessment Quality in Higher Education Programs

    Science.gov (United States)

    Wolf, Kenneth; Goodwin, Laura

    2007-01-01

    Accreditation is a mark of distinction indicating that an institution has met high standards set by the profession, and an increasingly important feature of the accreditation process in higher education is "outcomes assessment." This article presents two rubrics for evaluating the quality of an institution's outcomes assessment system. One rubric…

  16. An assessment of the quality of various brands of paracetamol ...

    African Journals Online (AJOL)

    To assess the seriousness of the global counterfeiting problem, we quantified the amount of active ingredient present in paracetamol tablets by various official and non-official methods. Eight brands of Paracetamol 500mg tablets were assessed using the quality control parameters of weight uniformity, active ingredient ...

  17. External quality assessments for microbiologic diagnosis of diphtheria in Europe.

    Science.gov (United States)

    Both, Leonard; Neal, Shona; De Zoysa, Aruni; Mann, Ginder; Czumbel, Ida; Efstratiou, Androulla

    2014-12-01

    The European Diphtheria Surveillance Network (EDSN) ensures the reliable epidemiological and microbiologic assessment of disease prevalence in the European Union. Here, we describe a survey of current diagnostic techniques for diphtheria surveillance conducted across the European Union and report the results from three external quality assessment (EQA) schemes performed between 2010 and 2014. Copyright © 2014, American Society for Microbiology. All Rights Reserved.

  18. A Methodology for Anatomic Ultrasound Image Diagnostic Quality Assessment

    DEFF Research Database (Denmark)

    Hemmsen, Martin Christian; Lange, Theis; Brandt, Andreas Hjelm

    2017-01-01

    This paper discusses methods for assessment of ultrasound image quality based on our experiences with evaluating new methods for anatomic imaging. It presents a methodology to ensure a fair assessment between competing imaging methods using clinically relevant evaluations. The methodology...... to properly reveal the clinical value. The paper exemplifies the methodology using recent studies of Synthetic Aperture Sequential Beamforming tissue harmonic imaging....

  19. Assessment of Consumers' Satisfaction with the Automotive Product Quality

    Science.gov (United States)

    Amineh, Hadi; Kosach, Nataliya

    2016-01-01

    Relevance of article is caused by the fact that customer's satisfaction currently serves as the mechanism allowing the carmakers to be competitive in the market. The paper describes issues of assessment of the quality of products manufactured by automobile companies. The assessment is based on widely applicable complex characteristics of the…

  20. Assessing communities of practice in health policy: a conceptual framework as a first step towards empirical research.

    Science.gov (United States)

    Bertone, Maria Paola; Meessen, Bruno; Clarysse, Guy; Hercot, David; Kelley, Allison; Kafando, Yamba; Lange, Isabelle; Pfaffmann, Jérôme; Ridde, Valéry; Sieleunou, Isidore; Witter, Sophie

    2013-10-20

    Communities of Practice (CoPs) are groups of people that interact regularly to deepen their knowledge on a specific topic. Thanks to information and communication technologies, CoPs can involve experts distributed across countries and adopt a 'transnational' membership. This has allowed the strategy to be applied to domains of knowledge such as health policy with a global perspective. CoPs represent a potentially valuable tool for producing and sharing explicit knowledge, as well as tacit knowledge and implementation practices. They may also be effective in creating links among the different 'knowledge holders' contributing to health policy (e.g., researchers, policymakers, technical assistants, practitioners, etc.). CoPs in global health are growing in number and activities. As a result, there is an increasing need to document their progress and evaluate their effectiveness. This paper represents a first step towards such empirical research as it aims to provide a conceptual framework for the analysis and assessment of transnational CoPs in health policy.The framework is developed based on the findings of a literature review as well as on our experience, and reflects the specific features and challenges of transnational CoPs in health policy. It organizes the key elements of CoPs into a logical flow that links available resources and the capacity to mobilize them, with knowledge management activities and the expansion of knowledge, with changes in policy and practice and, ultimately, with an improvement in health outcomes. Additionally, the paper addresses the challenges in the operationalization and empirical application of the framework.

  1. Assessing communities of practice in health policy: a conceptual framework as a first step towards empirical research

    Science.gov (United States)

    2013-01-01

    Communities of Practice (CoPs) are groups of people that interact regularly to deepen their knowledge on a specific topic. Thanks to information and communication technologies, CoPs can involve experts distributed across countries and adopt a ‘transnational’ membership. This has allowed the strategy to be applied to domains of knowledge such as health policy with a global perspective. CoPs represent a potentially valuable tool for producing and sharing explicit knowledge, as well as tacit knowledge and implementation practices. They may also be effective in creating links among the different ‘knowledge holders’ contributing to health policy (e.g., researchers, policymakers, technical assistants, practitioners, etc.). CoPs in global health are growing in number and activities. As a result, there is an increasing need to document their progress and evaluate their effectiveness. This paper represents a first step towards such empirical research as it aims to provide a conceptual framework for the analysis and assessment of transnational CoPs in health policy. The framework is developed based on the findings of a literature review as well as on our experience, and reflects the specific features and challenges of transnational CoPs in health policy. It organizes the key elements of CoPs into a logical flow that links available resources and the capacity to mobilize them, with knowledge management activities and the expansion of knowledge, with changes in policy and practice and, ultimately, with an improvement in health outcomes. Additionally, the paper addresses the challenges in the operationalization and empirical application of the framework. PMID:24139662

  2. No Reference Video-Quality-Assessment Model for Monitoring Video Quality of IPTV Services

    Science.gov (United States)

    Yamagishi, Kazuhisa; Okamoto, Jun; Hayashi, Takanori; Takahashi, Akira

    Service providers should monitor the quality of experience of a communication service in real time to confirm its status. To do this, we previously proposed a packet-layer model that can be used for monitoring the average video quality of typical Internet protocol television content using parameters derived from transmitted packet headers. However, it is difficult to monitor the video quality per user using the average video quality because video quality depends on the video content. To accurately monitor the video quality per user, a model that can be used for estimating the video quality per video content rather than the average video quality should be developed. Therefore, to take into account the impact of video content on video quality, we propose a model that calculates the difference in video quality between the video quality of the estimation-target video and the average video quality estimated using a packet-layer model. We first conducted extensive subjective quality assessments for different codecs and video sequences. We then model their characteristics based on parameters related to compression and packet loss. Finally, we verify the performance of the proposed model by applying it to unknown data sets different from the training data sets used for developing the model.

  3. Towards an empirical vulnerability function for use in debris flow risk assessment

    Directory of Open Access Journals (Sweden)

    S. Fuchs

    2007-08-01

    Full Text Available In quantitative risk assessment, risk is expressed as a function of the hazard, the elements at risk and the vulnerability. From a natural sciences perspective, vulnerability is defined as the expected degree of loss for an element at risk as a consequence of a certain event. The resulting value is dependent on the impacting process intensity and the susceptibility of the elements at risk, and ranges from 0 (no damage to 1 (complete destruction. With respect to debris flows, the concept of vulnerability – though widely acknowledged – did not result in any sound quantitative relationship between process intensities and vulnerability values so far, even if considerable loss occurred during recent years.

    To close this gap and establish this relationship, data from a well-documented debris flow event in the Austrian Alps was used to derive a quantitative vulnerability function applicable to buildings located on the fan of the torrent. The results suggest a second order polynomial function to fit best to the observed damage pattern. Vulnerability is highly dependent on the construction material used for exposed elements at risk. The buildings studied within the test site were constructed by using brick masonry and concrete, a typical design in post-1950s building craft in alpine countries. Consequently, the presented intensity-vulnerability relationship is applicable to this construction type within European mountains. However, a wider application of the presented method to additional test sites would allow for further improvement of the results and would support an enhanced standardisation of the vulnerability function.

  4. Empirical assessment of a research advance directive for persons with dementia and their proxies.

    Science.gov (United States)

    Stocking, Carol B; Hougham, Gavin W; Danner, Deborah D; Patterson, Marian B; Whitehouse, Peter J; Sachs, Greg A

    2007-10-01

    To evaluate a research advance directive for persons with established dementia diagnoses and their family caregivers or proxies. Prospective randomized, controlled trial. Three clinics, one each in Ohio, Kentucky, and Illinois. At the end of separate interviews about enrollment choices in five types of hypothetical research projects, 149 persons with established dementia diagnoses and their family proxies were randomized to jointly complete the Planning Ahead Together (PAT) document, a research advance directive (n=69) or to remain in the control group (n=80). The directive was assessed at two points: immediately after sample members received naturally occurring invitations to participate in other studies and again 2 years after initial enrollment. Personal enrollment rates, reported ease of enrollment decision for patients and proxies, and proxy comfort were compared between the experimental and control groups. Forty-one dyads were reinterviewed immediately after consent discussions for other trials. Forty-seven patients and 106 proxies were interviewed at 2-year follow-up. There was no evidence immediately after a trial enrollment opportunity or in the follow-up interview that the research advance directive (PAT) assisted patients or proxies. Enrollment rates, decision ease, and proxy comfort and certainty were similar in the PAT and control groups. Patient and proxy experience making hypothetical decisions in the interview may have affected enrollment decisions by the PAT and control groups. Although the low number of recruitment attempts and the natural attrition of the geriatric population limit conclusions about effectiveness that may be drawn from this unique data set, the feasibility of a research advance directive is clearly demonstrated.

  5. Strategic environmental assessment performance factors and their interaction: An empirical study in China

    Energy Technology Data Exchange (ETDEWEB)

    Li, Tianwei, E-mail: li.tianwei@mep.gov.cn [Appraisal Center for Environment and Engineering, MEP (China); Wang, Huizhi, E-mail: huizhiwangnk@163.com [Tianjin Academy of Social Sciences (China); Deng, Baole, E-mail: dengbaolekobe@126.com [Tianjin Environmental Monitoring Center (China); Ren, Wei, E-mail: wei.ren1012@gmail.com [School of the Built Environment, Oxford Brookes University (United Kingdom); Xu, He, E-mail: seacenter@nankai.edu.cn [Research center for Strategic Environmental Assessment, Nankai University (China)

    2016-07-15

    Strategic Environmental Assessment (SEA) has been seen as a preventive and participatory environmental management tool designed to integrate environmental protection into the decision-making process. However, the debate about SEA performance and effectiveness has increased in recent decades. Two main challenges exist in relation to this issue. The first is identifying the key influencing factors that affect SEA effectiveness, and the second is analyzing the relationship between SEA and these influencing factors. In this study, influencing factors were investigated through questionnaire surveys in the Chinese context, and then a Structural Equation Model (SEM) was developed and tested to identify potential links and causal relationships among factors. The associations between the independent factors were divided into direct and indirect causal associations. The results indicate that the decision-making process and policy context directly affect SEA implementation, while information and data sharing, public participation, expertise and SEA institutions are indirectly related with SEA. The results also suggest that a lack of cooperation between different sectors is an obstacle to the implementation of SEA. These findings could potentially contribute to the future management and implementation of SEA or enhance existing knowledge of SEA. The results show that the proposed model has a degree of feasibility and applicability. - Highlights: • Influencing factors were identified and investigated through questionnaire surveys. • Structural Equation Model (SEM) was developed and tested to identify potential links and causal relationships among factors. • Decision-making process and policy context directly affect SEA implementation. • Lack of cooperation among different sectors is an obstacle to the implementation of SEA. • The proposed model has a degree of feasibility and applicability.

  6. Quality Assessment of solid waste used for obtaining biogas

    International Nuclear Information System (INIS)

    Tamayo Cuellar, Ernesto Antonio; Menendez Perez, Manuel German

    2011-01-01

    The solid residuals are in our days an important factor in the processes of recycling of materials, composting and obtaining of biogas, however, sometimes doesn't keep in mind the quality of these for their productive acting. Therefore the present work has as objective, in the peculiar case of the biogas production, to propose a method to evaluate the quality of the solid residuals used in the biogas process starting from the biodegradable organic fraction contained in these. For the investigative development of the work theoretical methods were used as the hypothetical-deductive method, the systemic one, the structural-functional one and empiric methods as the scientific observation and the mensuration. The results of their application, although discreet still, have been evidenced in the evaluation of the quality of the solid residuals in the plant of recycling -composting of the City of Holguin in the compost production. The main conclusion to which you can arrive with the carried out investigation is that the evaluation of the quality of the solid residuals is important to make studies of feasibility in the design and implementation of new projects of recycling units, composting and biogas. (author)

  7. Voice and Speech Quality Perception Assessment and Evaluation

    CERN Document Server

    Jekosch, Ute

    2005-01-01

    Foundations of Voice and Speech Quality Perception starts out with the fundamental question of: "How do listeners perceive voice and speech quality and how can these processes be modeled?" Any quantitative answers require measurements. This is natural for physical quantities but harder to imagine for perceptual measurands. This book approaches the problem by actually identifying major perceptual dimensions of voice and speech quality perception, defining units wherever possible and offering paradigms to position these dimensions into a structural skeleton of perceptual speech and voice quality. The emphasis is placed on voice and speech quality assessment of systems in artificial scenarios. Many scientific fields are involved. This book bridges the gap between two quite diverse fields, engineering and humanities, and establishes the new research area of Voice and Speech Quality Perception.

  8. Food quality assessment in parent–child dyads

    DEFF Research Database (Denmark)

    Bech-Larsen, Tino; Jensen, Birger Boutrup

    2011-01-01

    When the buyer and the consumer of a food product are not identical, the risk of discrepancies between food quality expectations and experience is even higher than when the buyer is also the consumer. In such situations the interpersonal aspects of food quality formation become the focus of atten......When the buyer and the consumer of a food product are not identical, the risk of discrepancies between food quality expectations and experience is even higher than when the buyer is also the consumer. In such situations the interpersonal aspects of food quality formation become the focus...... of attention. The purpose of this article is to discuss the interpersonal aspects of food quality formation, and to explore these in the context of parents buying new types of healthier in-between meals for their children. To pursue this we introduce the concept of dyadic quality assessment and apply...

  9. Reliability of medical audit in quality assessment of medical care

    Directory of Open Access Journals (Sweden)

    Camacho Luiz Antonio Bastos

    1996-01-01

    Full Text Available Medical audit of hospital records has been a major component of quality of care assessment, although physician judgment is known to have low reliability. We estimated interrater agreement of quality assessment in a sample of patients with cardiac conditions admitted to an American teaching hospital. Physician-reviewers used structured review methods designed to improve quality assessment based on judgment. Chance-corrected agreement for the items considered more relevant to process and outcome of care ranged from low to moderate (0.2 to 0.6, depending on the review item and the principal diagnoses and procedures the patients underwent. Results from several studies seem to converge on this point. Comparisons among different settings should be made with caution, given the sensitivity of agreement measurements to prevalence rates. Reliability of review methods in their current stage could be improved by combining the assessment of two or more reviewers, and by emphasizing outcome-oriented events.

  10. [Systematic economic assessment and quality evaluation for traditional Chinese medicines].

    Science.gov (United States)

    Sun, Xiao; Guo, Li-ping; Shang, Hong-cai; Ren, Ming; Lei, Xiang

    2015-05-01

    To learn about the economic studies on traditional Chinese medicines in domestic literatures, in order to analyze the current economic assessment of traditional Chinese medicines and explore the existing problems. Efforts were made to search CNKI, VIP, Wanfang database and CBM by computer and include all literatures about economic assessment of traditional Chinese medicines published on professional domestic journals in the systematic assessment and quality evaluation. Finally, 50 articles were included in the study, and the systematic assessment and quality evaluation were made for them in terms of titles, year, authors' identity, expense source, disease type, study perspective, study design type, study target, study target source, time limit, cost calculation, effect indicator, analytical technique and sensitivity analysis. The finally quality score was 0.74, which is very low. The results of the study showed insufficient studies on economics of traditional Chinese medicines, short study duration and simple evaluation methods, which will be solved through unremitting efforts in the future.

  11. Evaluation of Educational Quality Assessment (EQA) (Follow-up Survey for the 1976 Assessment).

    Science.gov (United States)

    Kim, Joyce S.

    Superintendents from 155 school districts in Pennsylvania were surveyed regarding their participation in Pennsylvania's 1976 Educational Quality Assessment (EQA). Ten state goals for quality public school education were assessed in grades 5, 8, and 11, as part of the EQA. Questionnaire responses were returned by superintendents from 128 school…

  12. Service Quality Assessment Scale (SQAS): An Instrument for Evaluating Service Quality of Health-Fitness Clubs

    Science.gov (United States)

    Lam, Eddie T. C.; Zhang, James J.; Jensen, Barbara E.

    2005-01-01

    This study was designed to develop the Service Quality Assessment Scale to evaluate the service quality of health-fitness clubs. Through a review of literature, field observations, interviews, modified application of the Delphi technique, and a pilot study, a preliminary scale with 46 items was formulated. The preliminary scale was administered to…

  13. An assessment of groundwater quality using water quality index in Chennai, Tamil Nadu, India

    Directory of Open Access Journals (Sweden)

    I Nanda Balan

    2012-01-01

    Full Text Available Context : Water, the elixir of life, is a prime natural resource. Due to rapid urbanization in India, the availability and quality of groundwater have been affected. According to the Central Groundwater Board, 80% of Chennai′s groundwater has been depleted and any further exploration could lead to salt water ingression. Hence, this study was done to assess the groundwater quality in Chennai city. Aim : To assess the groundwater quality using water quality index in Chennai city. Materials and Methods: Chennai city was divided into three zones based on the legislative constituency and from these three zones three locations were randomly selected and nine groundwater samples were collected and analyzed for physiochemical properties. Results: With the exception of few parameters, most of the water quality assessment parameters showed parameters within the accepted standard values of Bureau of Indian Standards (BIS. Except for pH in a single location of zone 1, none of the parameters exceeded the permissible values for water quality assessment as prescribed by the BIS. Conclusion: This study demonstrated that in general the groundwater quality status of Chennai city ranged from excellent to good and the groundwater is fit for human consumption based on all the nine parameters of water quality index and fluoride content.

  14. Assessing Quality in Graduate Programs: An Internal Quality Indicator. AIR Forum 1981 Paper.

    Science.gov (United States)

    DiBiasio, Daniel A.; And Others

    Four approaches to measuring quality in graduate education are reviewed, and the approach used at the graduate school at Ohio State University is assessed. Four approaches found in the literature are: measuring quality by reputation, by scholarly productivity, by correlating reputation and scholarly productivity, and by multiple measures. Ohio…

  15. Assessing the quality of a student-generated question repository

    Science.gov (United States)

    Bates, Simon P.; Galloway, Ross K.; Riise, Jonathan; Homer, Danny

    2014-12-01

    We present results from a study that categorizes and assesses the quality of questions and explanations authored by students in question repositories produced as part of the summative assessment in introductory physics courses over two academic sessions. Mapping question quality onto the levels in the cognitive domain of Bloom's taxonomy, we find that students produce questions of high quality. More than three-quarters of questions fall into categories beyond simple recall, in contrast to similar studies of student-authored content in different subject domains. Similarly, the quality of student-authored explanations for questions was also high, with approximately 60% of all explanations classified as being of high or outstanding quality. Overall, 75% of questions met combined quality criteria, which we hypothesize is due in part to the in-class scaffolding activities that we provided for students ahead of requiring them to author questions. This work presents the first systematic investigation into the quality of student produced assessment material in an introductory physics context, and thus complements and extends related studies in other disciplines.

  16. Retinal image quality assessment based on image clarity and content

    Science.gov (United States)

    Abdel-Hamid, Lamiaa; El-Rafei, Ahmed; El-Ramly, Salwa; Michelson, Georg; Hornegger, Joachim

    2016-09-01

    Retinal image quality assessment (RIQA) is an essential step in automated screening systems to avoid misdiagnosis caused by processing poor quality retinal images. A no-reference transform-based RIQA algorithm is introduced that assesses images based on five clarity and content quality issues: sharpness, illumination, homogeneity, field definition, and content. Transform-based RIQA algorithms have the advantage of considering retinal structures while being computationally inexpensive. Wavelet-based features are proposed to evaluate the sharpness and overall illumination of the images. A retinal saturation channel is designed and used along with wavelet-based features for homogeneity assessment. The presented sharpness and illumination features are utilized to assure adequate field definition, whereas color information is used to exclude nonretinal images. Several publicly available datasets of varying quality grades are utilized to evaluate the feature sets resulting in area under the receiver operating characteristic curve above 0.99 for each of the individual feature sets. The overall quality is assessed by a classifier that uses the collective features as an input vector. The classification results show superior performance of the algorithm in comparison to other methods from literature. Moreover, the algorithm addresses efficiently and comprehensively various quality issues and is suitable for automatic screening systems.

  17. Quality, management, and the interplay of self-assessment, process assessments, and performance-based observations

    Energy Technology Data Exchange (ETDEWEB)

    Willett, D. J.

    1993-04-01

    In this document, the author presents his observations on the topic of quality assurance (QA). Traditionally the focus of quality management has been on QA organizations, manuals, procedures, audits, and assessments; quality was measured by the degree of conformance to specifications or standards. Today quality is defined as satisfying user needs and is measured by user satisfaction. The author proposes that quality is the responsibility of line organizations and staff and not the responsibility of the QA group. This work outlines an effective Conduct of Operations program. The author concludes his observations with a discussion of how quality is analogous to leadership.

  18. Examining the Psychometric Quality of Multiple-Choice Assessment Items using Mokken Scale Analysis.

    Science.gov (United States)

    Wind, Stefanie A

    The concept of invariant measurement is typically associated with Rasch measurement theory (Engelhard, 2013). Concerned with the appropriateness of the parametric transformation upon which the Rasch model is based, Mokken (1971) proposed a nonparametric procedure for evaluating the quality of social science measurement that is theoretically and empirically related to the Rasch model. Mokken's nonparametric procedure can be used to evaluate the quality of dichotomous and polytomous items in terms of the requirements for invariant measurement. Despite these potential benefits, the use of Mokken scaling to examine the properties of multiple-choice (MC) items in education has not yet been fully explored. A nonparametric approach to evaluating MC items is promising in that this approach facilitates the evaluation of assessments in terms of invariant measurement without imposing potentially inappropriate transformations. Using Rasch-based indices of measurement quality as a frame of reference, data from an eighth-grade physical science assessment are used to illustrate and explore Mokken-based techniques for evaluating the quality of MC items. Implications for research and practice are discussed.

  19. Assessment of sleep quality in bipolar euthymic patients.

    Science.gov (United States)

    Keskin, Necla; Tamam, Lut; Ozpoyraz, Nurgul

    2018-01-01

    Sleep quality is affected in bipolar disorder even in euthymic episodes. The aim of this study was to assess sleep quality in bipolar euthymic patients, determine related clinical characteristics and evaluate its effects on functionality. A total of 122 outpatients were included. Scales were used to confirm that patients were euthymic. Mini Mental Test was performed to exclude patients with a diagnosis of dementia. A data form for socio-demographic features and clinical characteristics of bipolar disorder have been completed. SCID-I and SCID II were used. The general features of sleep were investigated by General Sleep Questionnaire. All patients completed Pittsburgh Sleep Quality Index, Epworth Sleepiness Scale and Bipolar Disorder Functioning Questionnaire. 56.5% of our sample had poor sleep quality. Patients with poor sleep had a longer time to fall asleep and more frequent waking after sleep onset. Caffeine use and smoking, history of suicide attempts, seasonality, comorbidity of lifetime anxiety, somatoform and impulse control disorders, using antidepressant medication and administration of electroconvulsive therapy were significantly higher; emotional and intellectual functioning, household relations, taking initiative, self-sufficiency and total functionality were lower in bipolar patients with poor sleep quality (p<0.05). The strongest predictor of sleep quality problem was seasonality, recording an odds ratio of 3.91. Sleep quality is closely related with clinical features of bipolar disorder. Sleep quality is affected negatively in euthymic episodes of bipolar disorder and poor sleep quality cause loss in functionality. Assessment of sleep disturbances routinely in psychiatric interviews and dealing with sleep problems regardless mood episodes may improve sleep quality, thereby functionality and quality of life. Copyright © 2017 Elsevier Inc. All rights reserved.

  20. Cost efficiency assessment of automated quality control of precast structures

    Directory of Open Access Journals (Sweden)

    Kaverzina Liudmila

    2018-01-01

    Full Text Available Relevance of the research is conditioned by the necessity to enhance the factory quality control of reinforced concrete structures based on integral assessment of their reliability. The current system of selective quality control of precast concrete structures does not provide reliability assurance of the whole lot of products. The present research aims to develop operational procedure and consider economic feasibility of automated quality control of precast RC structures. Quality control is performed each shift according to the developed software system based on probabilistic methods considering statistic variability of the controlled parameters. The critical criterion of operational integrity of structures is integral assessment of the reliability indicators. The following theoretical research methods were used in the study: probabilistic-statistical, methods of system and economic analysis. Validity of the obtained results and economic feasibility were proved by experimental studies including full-scale tests.

  1. Quality assessment in prospective nuchal translucency screening for Down syndrome

    DEFF Research Database (Denmark)

    Wøjdemann, K R; Christiansen, M; Sundberg, K

    2001-01-01

    OBJECTIVES: To develop and apply a quality control system in a Down syndrome screening study using nuchal translucency as an interventional marker. METHODS: In a prospective Down syndrome screening study fetal nuchal translucency thickness was measured in 9236 of the 10 045 examined pregnancies....... For quality assessment two models were introduced: firstly, image-scoring evaluation of the nuchal translucency thickness measurements and secondly, establishment of the distributions of nuchal translucency multiples of the median over time and the influence of intervention. RESULTS: The observer variability...... evaluation of the distribution of the nuchal translucency multiples of the median seems to be a good method to assess the quality for a center and may also be used to identify individual examiners deviating from the mean performance. The image-scoring methods we introduced cannot be recommended for quality...

  2. 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.

  3. Development and quality assurance of computer-based assessment batteries.

    Science.gov (United States)

    Schlegel, Robert E; Gilliland, Kirby

    2007-02-01

    The purpose of this article is to outline critical elements in the development and quality assurance (QA) assessment of a computer-based assessment battery (CAB). The first section of the article provides an overview of the life cycle of a representative CAB, typical evolutionary stages, and many of the essential considerations for designing and developing a CAB. The second section of the article presents a model for conducting a quality assurance assessment of a CAB. A general narrative of several steps in the QA process is supported by a table of recommended QA assessment elements. Although this QA process model may not be definitive for all cases, it provides a general framework within which a systematic assessment of any CAB can be conducted.

  4. Bearing performance degradation assessment based on a combination of empirical mode decomposition and k-medoids clustering

    Science.gov (United States)

    Rai, Akhand; Upadhyay, S. H.

    2017-09-01

    Bearing is the most critical component in rotating machinery since it is more susceptible to failure. The monitoring of degradation in bearings becomes of great concern for averting the sudden machinery breakdown. In this study, a novel method for bearing performance degradation assessment (PDA) based on an amalgamation of empirical mode decomposition (EMD) and k-medoids clustering is encouraged. The fault features are extracted from the bearing signals using the EMD process. The extracted features are then subjected to k-medoids based clustering for obtaining the normal state and failure state cluster centres. A confidence value (CV) curve based on dissimilarity of the test data object to the normal state is obtained and employed as the degradation indicator for assessing the health of bearings. The proposed outlook is applied on the vibration signals collected in run-to-failure tests of bearings to assess its effectiveness in bearing PDA. To validate the superiority of the suggested approach, it is compared with commonly used time-domain features RMS and kurtosis, well-known fault diagnosis method envelope analysis (EA) and existing PDA classifiers i.e. self-organizing maps (SOM) and Fuzzy c-means (FCM). The results demonstrate that the recommended method outperforms the time-domain features, SOM and FCM based PDA in detecting the early stage degradation more precisely. Moreover, EA can be used as an accompanying method to confirm the early stage defect detected by the proposed bearing PDA approach. The study shows the potential application of k-medoids clustering as an effective tool for PDA of bearings.

  5. Ultrasound Image Quality Assessment: A framework for evaluation of clinical image quality

    DEFF Research Database (Denmark)

    Hemmsen, Martin Christian; Pedersen, Mads Møller; Nikolov, Svetoslav Ivanov

    2010-01-01

    Improvement of ultrasound images should be guided by their diagnostic value. Evaluation of clinical image quality is generally performed subjectively, because objective criteria have not yet been fully developed and accepted for the evaluation of clinical image quality. Based on recommendation 500...... from the International Telecommunication Union - Radiocommunication (ITU-R) for such subjective quality assessment, this work presents equipment and a methodology for clinical image quality evaluation for guiding the development of new and improved imaging. The system is based on a BK-Medical 2202 Pro...... information, which is fast enough to get sufficient number of scans under realistic operating conditions, so that statistical evaluation is valid and reliable....

  6. Empirical Study on the Sustainability of China's Grain Quality Improvement: The Role of Transportation, Labor, and Agricultural Machinery.

    Science.gov (United States)

    Zhang, Ming; Duan, Fang; Mao, Zisen

    2018-02-05

    As a major part of farming sustainability, the issues of grain production and its quality improvement have been important in many countries. This paper aims to address these issues in China. Based on the data from the main production provinces and by applying the stochastic frontier analysis methodology, we find that the improvement of transportation and the use of agricultural machinery have become the main driving forces for grain quality improvement in China. After further studying different provinces' potentials of grain quality improvement, we show that grain quality has increased steadily. Therefore, we can conclude China's grain quality improvement is indeed sustainable. Furthermore, different grains like rice, wheat, and corn share similar characteristics in terms of quality improvement, but the improvement rate for rice is relatively low, while those of corn and wheat are relatively high. Moreover, the overall change of efficiency gain of grain quality improvement is not significant for different provinces. The efficiency gains of the quality improvements for rice and wheat even decrease slightly. In addition, we find that only expanding grain quality improvement potential can simultaneously achieve the dual objectives of improving grain quality and increasing yield.

  7. Empirical Study on the Sustainability of China’s Grain Quality Improvement: The Role of Transportation, Labor, and Agricultural Machinery

    Science.gov (United States)

    Zhang, Ming; Duan, Fang; Mao, Zisen

    2018-01-01

    As a major part of farming sustainability, the issues of grain production and its quality improvement have been important in many countries. This paper aims to address these issues in China. Based on the data from the main production provinces and by applying the stochastic frontier analysis methodology, we find that the improvement of transportation and the use of agricultural machinery have become the main driving forces for grain quality improvement in China. After further studying different provinces’ potentials of grain quality improvement, we show that grain quality has increased steadily. Therefore, we can conclude China’s grain quality improvement is indeed sustainable. Furthermore, different grains like rice, wheat, and corn share similar characteristics in terms of quality improvement, but the improvement rate for rice is relatively low, while those of corn and wheat are relatively high. Moreover, the overall change of efficiency gain of grain quality improvement is not significant for different provinces. The efficiency gains of the quality improvements for rice and wheat even decrease slightly. In addition, we find that only expanding grain quality improvement potential can simultaneously achieve the dual objectives of improving grain quality and increasing yield. PMID:29401727

  8. Empirical Study on the Sustainability of China’s Grain Quality Improvement: The Role of Transportation, Labor, and Agricultural Machinery

    Directory of Open Access Journals (Sweden)

    Ming Zhang

    2018-02-01

    Full Text Available As a major part of farming sustainability, the issues of grain production and its quality improvement have been important in many countries. This paper aims to address these issues in China. Based on the data from the main production provinces and by applying the stochastic frontier analysis methodology, we find that the improvement of transportation and the use of agricultural machinery have become the main driving forces for grain quality improvement in China. After further studying different provinces’ potentials of grain quality improvement, we show that grain quality has increased steadily. Therefore, we can conclude China’s grain quality improvement is indeed sustainable. Furthermore, different grains like rice, wheat, and corn share similar characteristics in terms of quality improvement, but the improvement rate for rice is relatively low, while those of corn and wheat are relatively high. Moreover, the overall change of efficiency gain of grain quality improvement is not significant for different provinces. The efficiency gains of the quality improvements for rice and wheat even decrease slightly. In addition, we find that only expanding grain quality improvement potential can simultaneously achieve the dual objectives of improving grain quality and increasing yield.

  9. Valuation of Biochemical and Microbiological Indicators in Soil Quality Assessment

    OpenAIRE

    Peruzzi, Elisabetta

    2017-01-01

    This thesis research aimed at valuating the suitability of biochemical and microbiological indicators in soil quality and soil health assessment, applying an interdisciplinary approach by means of different methodologies. As the concept of soil quality encompasses both functionality and biological diversity, two cases of study are proposed and each of them aimed at the description of this two aspects. The first case study examined the degree of interference of high soil copper contamination w...

  10. A quality assessment of orthodontic patient information leaflets

    Directory of Open Access Journals (Sweden)

    Jadbinder Seehra

    2016-05-01

    Full Text Available Abstract Background Patient information leaflets (PILs are often used to reinforce and provide further information relating to treatment choices, risks, and alternatives. An assessment of the quality of commonly used orthodontic patient information leaflets is lacking. Methods A cross-sectional assessment of patient information leaflets from two international orthodontic societies was undertaken. The quality of each leaflet was assessed using the DISCERN instrument. The readability of each leaflet was assessed using the Flesch Reading Ease instrument, Flesch-Kincaid Grade Level and Simple Measure of Gobbledygook (SMOG index. Descriptive statistics followed by univariate analysis was conducted. Results Thirty-six patient information leaflets were identified. Reporting of DISCERN instrument items relating to aims, description of sources, details of additional sources, consequences of no treatment, possible treatment options, and support for a shared decision process was of low quality. The overall quality score for the total sample was 44. The median Flesch Reading Ease, Flesch-Kincaid Grade Level, and SMOG index scores were 70 (interquartile range (IQR 53.3–73.9, 7.2 (IQR 6–9.7, and 7.3 (IQR 6.7–9.1, respectively. There was a significant difference between the quality (−8.00, 95 % CI: −14.62, −1.38, p < 0.001, Flesch Reading Ease (−22.30, 95 % CI: −26.77, 17.83, p < 0.001 and the Flesch-Kincaid Grade Level (3.80, 95 % CI: 2.74, 4.86, p < 0.001 scores between the two societies’ PILs. Conclusions In relation to the DISCERN instrument, the quality of orthodontic PILs is deemed of moderate quality. There is a significant difference between the quality scores and the readability of PILs from different societies.

  11. Self-Organizing Maps for Fingerprint Image Quality Assessment

    DEFF Research Database (Denmark)

    Olsen, Martin Aastrup; Tabassi, Elham; Makarov, Anton

    2013-01-01

    for a quality assessment algorithm is to meet the low computational complexity requirement of mobile platforms used in national biometric systems, by military and police forces. We propose a computationally efficient means of predicting biometric performance based on a combination of unsupervised and supervised...... and identification of individuals). Measuring and reporting quality allows processing enhancements to increase probability of detection and track accuracy while decreasing probability of false alarms. Aside from predictive capabilities with respect to the recognition performance, another important design criteria...

  12. Space Shuttle flying qualities and flight control system assessment study

    Science.gov (United States)

    Myers, T. T.; Johnston, D. E.; Mcruer, D.

    1982-01-01

    The suitability of existing and proposed flying quality and flight control system criteria for application to the space shuttle orbiter during atmospheric flight phases was assessed. An orbiter experiment for flying qualities and flight control system design criteria is discussed. Orbiter longitudinal and lateral-directional flying characteristics, flight control system lag and time delay considerations, and flight control manipulator characteristics are included. Data obtained from conventional aircraft may be inappropriate for application to the shuttle orbiter.

  13. Assessment of Soil Environmental Quality in Huangguoshu Waterfalls Scenic Area

    Science.gov (United States)

    Luo, Rongbin; Feng, Kaiyu; Gu, Bo; Xu, Chengcheng

    2018-03-01

    This paper concentrates on five major heavy metal pollutants as soil environmental quality evaluation factors, respectively Lead (Pb), Cadmium (Cd), Mercury (Hg), Arsenic (As), Chromium (Cr), based on the National Soil Environmental Quality Standards (GB15618 - 1995), we used single factor index evaluation model of soil environmental quality and comprehensive index evaluation model to analyze surface soil environmental quality in the Huangguoshu Waterfalls scenic area. Based on surface soil analysis, our results showed that the individual contamination index, Pb, Hg, As and Cr in the Huangguoshu Waterfalls scenic area met class I according to requirements of National Soil Environmental Quality Standards, which indicated that Pb, Hg, As and Cr were not main heavy metal pollutants in this area, but the individual contamination index of Cd in soil was seriously exceeded National Soil Environmental Quality Standards’ requirement. Soil environmental quality in Shitouzhai, Luoshitan, Langgong Hongyan Power Plant have exceeded the requirement of National Soil Environmental Quality Standards “0.7soils had been slightly polluted; the classification of soil environmental quality assessment in Longgong downstream area was above “Alert Level”, it indicated that soil in this area was not polluted. Above all, relevant measures for soil remediation are put forward.

  14. Scoping review of pediatric tonsillectomy quality of life assessment instruments.

    Science.gov (United States)

    Kao, Stephen Shih-Teng; Peters, Micah D J; Dharmawardana, Nuwan; Stew, Benjamin; Ooi, Eng Hooi

    2017-10-01

    Sleep-disordered breathing or recurrent tonsillitis have detrimental effects on the child's physical health and quality of life. Tonsillectomy is commonly performed to treat these common conditions and improve the child's quality of life. This scoping review aims to present a comprehensive and descriptive analysis of quality of life questionnaires as a resource for clinicians and researchers when deciding which tool to use when assessing the quality of life effects after tonsillectomy. A comprehensive search strategy was undertaken across MEDLINE (PubMed), CINAHL, Embase, and Cochrane CENTRAL. Quality of life questionnaires utilized in studies investigating pediatric patients undergoing tonsillectomy for chronic tonsillitis or sleep-disordered breathing were included. Methodological quality and data extraction were conducted as per Joanna Briggs Institute methodology. Ten questionnaires were identified, consisting of six generic and four disease-specific instruments. The Pediatric Quality of Life Inventory was the most commonly utilized generic questionnaire. The Obstructive Sleep Apnea-18 was the most commonly utilized disease-specific questionnaire. This review identified a range of generic and disease-specific quality of life questionnaires utilized in pediatric patients who have undergone tonsillectomy with or without adenoidectomy for sleep-disordered breathing or chronic tonsillitis. Important aspects of each questionnaire have been summarized to aid researchers and clinicians in choosing the appropriate questionnaire when evaluating the quality of life effects of tonsillectomy. NA Laryngoscope, 127:2399-2406, 2017. © 2017 The American Laryngological, Rhinological and Otological Society, Inc.

  15. No-Reference Video Quality Assessment using Codec Analysis

    DEFF Research Database (Denmark)

    Søgaard, Jacob; Forchhammer, Søren; Korhonen, Jari

    2015-01-01

    A no-reference video quality assessment (VQA) method is presented for videos distorted by H.264/AVC and MPEG-2. The assessment is performed without access to the bit-stream. Instead we analyze and estimate coefficients based on decoded pixels. The approach involves distinguishing between the two...... types of videos, estimating the level of quantization used in the I-frames, and exploiting this information to assess the video quality. In order to do this for H.264/AVC, the distribution of the DCT-coefficients after intra-prediction and deblocking are modeled. To obtain VQA features for H.264/AVC, we...... propose a novel estimation method of the quantization in H.264/AVC videos without bitstream access, which can also be used for Peak Signalto-Noise Ratio (PSNR) estimation. The results from the MPEG-2 and H.264/AVC analysis are mapped to a perceptual measure of video quality by Support Vector Regression...

  16. Water quality assessment of Australian ports using water quality evaluation indices

    Science.gov (United States)

    Jahan, Sayka

    2017-01-01

    Australian ports serve diverse and extensive activities, such as shipping, tourism and fisheries, which may all impact the quality of port water. In this work water quality monitoring at different ports using a range of water quality evaluation indices was applied to assess the port water quality. Seawater samples at 30 stations in the year 2016–2017 from six ports in NSW, Australia, namely Port Jackson, Botany, Kembla, Newcastle, Yamba and Eden, were investigated to determine the physicochemical and biological variables that affect the port water quality. The large datasets obtained were designed to determine the Water Quality Index, Heavy metal Evaluation Index, Contamination Index and newly developed Environmental Water Quality Index. The study revealed medium water quality index and high and medium heavy metal evaluation index at three of the study ports and high contamination index in almost all study ports. Low level dissolved oxygen and higher level of total dissolved solids, turbidity, fecal coliforms, copper, iron, lead, zinc, manganese, cadmium and cobalt are mainly responsible for the poor water qualities of the port areas. Good water quality at the background samples indicated that various port activities are the likely cause for poor water quality inside the port area. PMID:29244876

  17. Water quality assessment of Australian ports using water quality evaluation indices.

    Directory of Open Access Journals (Sweden)

    Sayka Jahan

    Full Text Available Australian ports serve diverse and extensive activities, such as shipping, tourism and fisheries, which may all impact the quality of port water. In this work water quality monitoring at different ports using a range of water quality evaluation indices was applied to assess the port water quality. Seawater samples at 30 stations in the year 2016-2017 from six ports in NSW, Australia, namely Port Jackson, Botany, Kembla, Newcastle, Yamba and Eden, were investigated to determine the physicochemical and biological variables that affect the port water quality. The large datasets obtained were designed to determine the Water Quality Index, Heavy metal Evaluation Index, Contamination Index and newly developed Environmental Water Quality Index. The study revealed medium water quality index and high and medium heavy metal evaluation index at three of the study ports and high contamination index in almost all study ports. Low level dissolved oxygen and higher level of total dissolved solids, turbidity, fecal coliforms, copper, iron, lead, zinc, manganese, cadmium and cobalt are mainly responsible for the poor water qualities of the port areas. Good water quality at the background samples indicated that various port activities are the likely cause for poor water quality inside the port area.

  18. Water quality assessment of Australian ports using water quality evaluation indices.

    Science.gov (United States)

    Jahan, Sayka; Strezov, Vladimir

    2017-01-01

    Australian ports serve diverse and extensive activities, such as shipping, tourism and fisheries, which may all impact the quality of port water. In this work water quality monitoring at different ports using a range of water quality evaluation indices was applied to assess the port water quality. Seawater samples at 30 stations in the year 2016-2017 from six ports in NSW, Australia, namely Port Jackson, Botany, Kembla, Newcastle, Yamba and Eden, were investigated to determine the physicochemical and biological variables that affect the port water quality. The large datasets obtained were designed to determine the Water Quality Index, Heavy metal Evaluation Index, Contamination Index and newly developed Environmental Water Quality Index. The study revealed medium water quality index and high and medium heavy metal evaluation index at three of the study ports and high contamination index in almost all study ports. Low level dissolved oxygen and higher level of total dissolved solids, turbidity, fecal coliforms, copper, iron, lead, zinc, manganese, cadmium and cobalt are mainly responsible for the poor water qualities of the port areas. Good water quality at the background samples indicated that various port activities are the likely cause for poor water quality inside the port area.

  19. Inglorious Empire

    DEFF Research Database (Denmark)

    Khair, Tabish

    2017-01-01

    Review of 'Inglorious Empire: What the British did to India' by Shashi Tharoor, London, Hurst Publishers, 2017, 296 pp., £20.00......Review of 'Inglorious Empire: What the British did to India' by Shashi Tharoor, London, Hurst Publishers, 2017, 296 pp., £20.00...

  20. Assessment Methods of Quality of Life of Living Organ Donors

    Directory of Open Access Journals (Sweden)

    S. V. Gautier

    2017-01-01

    Full Text Available The study of quality of life of living organ donors in transplantation by questionnaires has increasingly become the subject of clinical studies. However, there are no unified criteria and standard norms of quality of life. Each questionnaire has its own criteria and evaluation scale. This review presents the main general questionnaires that have been applied worldwide for the quality of life assessment of living kidney and liver donors. Special questionnaires used to refine the parameters of quality of life and their coordination with common questionnaires are considered. Optimal questionnaire to detect quality of life in modern research for living organ donors is identified.

  1. The Role of Learning in Health Technology Assessments: An Empirical Assessment of Endovascular Aneurysm Repairs in German Hospitals.

    Science.gov (United States)

    Varabyova, Yauheniya; Blankart, Carl Rudolf; Schreyögg, Jonas

    2017-02-01

    Changes in performance due to learning may dynamically influence the results of a technology evaluation through the change in effectiveness and costs. In this study, we estimate the effect of learning using the example of two minimally invasive treatments of abdominal aortic aneurysms: endovascular aneurysm repair (EVAR) and fenestrated EVAR (fEVAR). The analysis is based on the administrative data of over 40,000 patients admitted with unruptured abdominal aortic aneurysm to more than 500 different hospitals over the years 2006 to 2013. We examine two patient outcomes, namely, in-hospital mortality and length of stay using hierarchical regression models with random effects at the hospital level. The estimated models control for patient and hospital characteristics and take learning interdependency between EVAR and fEVAR into account. In case of EVAR, we observe a significant decrease both in the in-hospital mortality and length of stay with experience accumulated at the hospital level; however, the learning curve for fEVAR in both outcomes is effectively flat. To foster the consideration of learning in health technology assessments of medical devices, a general framework for estimating learning effects is derived from the analysis. © 2017 The Authors. Health Economics published by John Wiley & Sons, Ltd. © 2017 The Authors. Health Economics published by John Wiley & Sons, Ltd.

  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. An empirical evaluation of software quality assurance practices and challenges in a developing country: a comparison of Nigeria and Turkey.

    Science.gov (United States)

    Sowunmi, Olaperi Yeside; Misra, Sanjay; Fernandez-Sanz, Luis; Crawford, Broderick; Soto, Ricardo

    2016-01-01

    The importance of quality assurance in the software development process cannot be overemphasized because its adoption results in high reliability and easy maintenance of the software system and other software products. Software quality assurance includes different activities such as quality control, quality management, quality standards, quality planning, process standardization and improvement amongst others. The aim of this work is to further investigate the software quality assurance practices of practitioners in Nigeria. While our previous work covered areas on quality planning, adherence to standardized processes and the inherent challenges, this work has been extended to include quality control, software process improvement and international quality standard organization membership. It also makes comparison based on a similar study carried out in Turkey. The goal is to generate more robust findings that can properly support decision making by the software community. The qualitative research approach, specifically, the use of questionnaire research instruments was applied to acquire data from software practitioners. In addition to the previous results, it was observed that quality assurance practices are quite neglected and this can be the cause of low patronage. Moreover, software practitioners are neither aware of international standards organizations or the required process improvement techniques; as such their claimed standards are not aligned to those of accredited bodies, and are only limited to their local experience and knowledge, which makes it questionable. The comparison with Turkey also yielded similar findings, making the results typical of developing countries. The research instrument used was tested for internal consistency using the Cronbach's alpha, and it was proved reliable. For the software industry in developing countries to grow strong and be a viable source of external revenue, software assurance practices have to be taken seriously

  4. Quality assessment of systematic reviews on periodontal regeneration in humans.

    Science.gov (United States)

    Elangovan, Satheesh; Avila-Ortiz, Gustavo; Johnson, Georgia K; Karimbux, Nadeem; Allareddy, Veerasathpurush

    2013-02-01

    Systematic reviews represent the highest form of evidence in the current hierarchy of evidence-based dentistry. Critical analysis of published systematic reviews may help to analyze their strengths and weaknesses and to identify areas that need future improvement. The aim of this overview is to determine and compare the quality of systematic reviews published in the field of periodontal regeneration using established checklists, such as the Assessment of Multiple Systematic Reviews (AMSTAR) guidelines. A systematic search was conducted to retrieve reviews on periodontal regeneration in humans. A total of 14 systematic reviews were selected using a set of inclusion and exclusion criteria. Two independent reviewers appraised the quality of the selected reviews using AMSTAR guidelines. Each article was given an AMSTAR total score, based on the number of AMSTAR criteria that were fulfilled. The quality of included reviews was further assessed using a checklist proposed in 2003. Only one of the selected systematic reviews satisfied all the AMSTAR guidelines, whereas two reviews satisfied just two of the 11 items. This study shows that published systematic reviews on periodontal regeneration exhibit significant structural and methodologic variability. Quality assessment using the additional checklist further confirmed the variability in the way systematic reviews were conducted and/or reported. Consideration of guidelines for quality assessment, such as AMSTAR, when designing and conducting systematic reviews may increase the validity and clinical applicability of future reviews.

  5. Non-human biota dose assessment. Sensitivity analysis and knowledge quality assessment

    International Nuclear Information System (INIS)

    Smith, K.; Robinson, C.; Jackson, D.; La Cruz, I. de; Zinger, I.; Avila, R.

    2010-10-01

    This report provides a summary of a programme of work, commissioned within the BIOPROTA collaborative forum, to assess the quantitative and qualitative elements of uncertainty associated with biota dose assessment of potential impacts of long-term releases from geological disposal facilities (GDF). Quantitative and qualitative aspects of uncertainty were determined through sensitivity and knowledge quality assessments, respectively. Both assessments focused on default assessment parameters within the ERICA assessment approach. The sensitivity analysis was conducted within the EIKOS sensitivity analysis software tool and was run in both generic and test case modes. The knowledge quality assessment involved development of a questionnaire around the ERICA assessment approach, which was distributed to a range of experts in the fields of non-human biota dose assessment and radioactive waste disposal assessments. Combined, these assessments enabled critical model features and parameters that are both sensitive (i.e. have a large influence on model output) and of low knowledge quality to be identified for each of the three test cases. The output of this project is intended to provide information on those parameters that may need to be considered in more detail for prospective site-specific biota dose assessments for GDFs. Such information should help users to enhance the quality of their assessments and build greater confidence in the results. (orig.)

  6. Assessment of visual landscape quality using IKONOS imagery.

    Science.gov (United States)

    Ozkan, Ulas Yunus

    2014-07-01

    The assessment of visual landscape quality is of importance to the management of urban woodlands. Satellite remote sensing may be used for this purpose as a substitute for traditional survey techniques that are both labour-intensive and time-consuming. This study examines the association between the quality of the perceived visual landscape in urban woodlands and texture measures extracted from IKONOS satellite data, which features 4-m spatial resolution and four spectral bands. The study was conducted in the woodlands of Istanbul (the most important element of urban mosaic) lying along both shores of the Bosporus Strait. The visual quality assessment applied in this study is based on the perceptual approach and was performed via a survey of expressed preferences. For this purpose, representative photographs of real scenery were used to elicit observers' preferences. A slide show comprising 33 images was presented to a group of 153 volunteers (all undergraduate students), and they were asked to rate the visual quality of each on a 10-point scale (1 for very low visual quality, 10 for very high). Average visual quality scores were calculated for landscape. Texture measures were acquired using the two methods: pixel-based and object-based. Pixel-based texture measures were extracted from the first principle component (PC1) image. Object-based texture measures were extracted by using the original four bands. The association between image texture measures and perceived visual landscape quality was tested via Pearson's correlation coefficient. The analysis found a strong linear association between image texture measures and visual quality. The highest correlation coefficient was calculated between standard deviation of gray levels (SDGL) (one of the pixel-based texture measures) and visual quality (r = 0.82, P quality of urban woodland landscapes can be estimated by using texture measures extracted from satellite data in combination with appropriate modelling

  7. Assessing users satisfaction with service quality in Slovenian public library

    Directory of Open Access Journals (Sweden)

    Igor Podbrežnik

    2016-07-01

    Full Text Available Purpose: A research was made into user satisfaction with regard to the quality of library services in one of the Slovenian public libraries. The aim was to establish the type of service quality level actually expected by the users, and to determine their satisfaction with the current quality level of available library services.Methodology: The research was performed by means of the SERVQUAL measuring tool which was used to determine the size and direction of the gap between the detected and the expected quality of library services among public library users.Results: Different groups of users provide different assessments of specific quality factors, and a library cannot satisfy the expectations of each and every user if most quality factors display discrepancies between the estimated perception and expectations. The users expect more reliable services and more qualified library staff members who would understand and allocate time for each user’s individual needs. The largest discrepancies from the expectations are detected among users in the under-35 age group and among the more experienced and skilled library users. The results of factor analysis confirm the fact that a higher number of quality factors can be explained by three common factors affecting the satisfaction of library users. A strong connection between user satisfaction and their assessment of the integral quality of services and loyalty has been established.Research restrictions: The research results should not be generalised and applied to all Slovenian public libraries since they differ in many important aspects. In addition, a non-random sampling method was used.Research originality/Applicability: The conducted research illustrates the use of a measuring tool that was developed with the aim of determining the satisfaction of users with the quality of library services in Slovenian public libraries. Keywords: public library, user satisfaction, quality of library services, user

  8. Assessing service quality satisfying the expectations of library customers

    CERN Document Server

    Hernon, Peter; Dugan, Robert

    2015-01-01

    Academic and public libraries are continuing to transform as the information landscape changes, expanding their missions into new service roles that call for improved organizational performance and accountability. Since Assessing Service Quality premiered in 1998, receiving the prestigious Highsmith Library Literature Award, scores of library managers and administrators have trusted its guidance for applying a customer-centered approach to service quality and performance evaluation. This extensively revised and updated edition explores even further the ways technology influences both the experiences of library customers and the ways libraries themselves can assess those experiences.

  9. Surface wave mode coupling and the validity of the path average approximation in surface waveform inversions: an empirical assessment

    Science.gov (United States)

    Datta, Arjun; Priestley, Keith F.; Roecker, Steve; Chapman, Chris H.

    2017-11-01

    We employ an empirical approach to study the phenomenon of surface wave mode conversion due to lateral heterogeneity, and, as an example, assess its impact on a specific waveform inversion methodology used for surface wave tomography. Finite difference modelling in 2-D media, using a method that allows modelling of a single surface wave mode at a time, is combined with frequency domain decomposition of the wavefield onto a basis of local mode eigenfunctions, to illuminate mode conversion as a function of frequency and heterogeneity parameters. Synthetic waveforms generated by the modelling are inverted to study the effects of mode conversion on the inversion process. For heterogeneities in the upper mantle depth range of ∼40-300 km, we find that heterogeneity strengths of about 5 per cent (with sharp lateral boundaries), or lateral boundary length scales of 10-15 times the seismic wavelength (with 10 per cent maximum strength) produce significant mode conversion at periods of 30 s and shorter. These are significant in the sense that, depending on source strength, converted mode amplitudes can be well above typical noise levels in seismology. Correspondingly, waveform inversion with higher modes reveals the inadequacy of the path average approximation at these periods, with the potential for errors as large as 7 per cent in inferred group velocities, which will translate into errors in the inverted shear-velocity structure.

  10. On the role of environmental corruption in healthcare infrastructures: An empirical assessment for Italy using DEA with truncated regression approach.

    Science.gov (United States)

    Cavalieri, Marina; Guccio, Calogero; Rizzo, Ilde

    2017-05-01

    This paper investigates empirically whether the institutional features of the contracting authority as well as the level of 'environmental' corruption in the area where the work is localised affect the efficient execution of public contracts for healthcare infrastructures. A two-stage Data Envelopment Analysis (DEA) is carried out based on a sample of Italian public contracts for healthcare infrastructures during the period 2000-2005. First, a smoothed bootstrapped DEA estimator is used to assess the relative efficiency in the implementation of each single infrastructure contract. Second, the determinants of the efficiency scores variability are considered, paying special attention to the effect exerted by 'environmental' corruption on different types of contracting authorities. Our results show that the performance of the contracts for healthcare infrastructures is significantly affected by 'environmental' corruption. Furthermore, healthcare contracting authorities are, on average, less efficient and the negative effect of corruption on efficiency is greater for this type of public procurers. The policy recommendation coming out of the study is to rely on 'qualified' contracting authorities since not all the public bodies have the necessary expertise to carry on public contracts for healthcare infrastructures efficiently. Copyright © 2017. Published by Elsevier B.V.

  11. An empirical assessment of the effects of the 1994 In Trust Agreements on IRRI Germplasm Acquisition and Distribution

    Directory of Open Access Journals (Sweden)

    Elisabetta Gotor

    2009-12-01

    Full Text Available The objective of this paper is to assess the possible influence of the 1994 In Trust Agreements (ITAs on acquisition and distribution of germplasm held by the International Research Rice Institute (IRRI genebank. The agreements, legally affirmed the ‘public good’ status of the collections that were placed ‘In Trust’ for the benefit of the world community under agreements with FAO. They initiated a formal system of multilateral access to CGIAR-held ex situ genetic resources. The hypothesis that the consequences of the ITAs lead to an enhancement of CGIAR germplasm utilization is tested here using a basic conceptual framework to infer on factors determining the distribution of germplasm. Subsequently a Bayesian empirical model is applied to IRRI accessions distribution’s time-series to provide formal evidence to the hypothesis. Results show that there is a discernible ‘change’ point that would support a significant drop in germplasm distribution followed by a new growing trend around the establishment of the ITAs. This had followed a period beginning around 1989 and leading up to the establishment of the ITAs of a large number of requests for restoration of germplasm back to countries of origin and a reduction in acquisitions. As a result the number of accessions held by IRRI reached a low point around 1994. The number of accessions might not have been built back up without the establishment of a stable policy environment that was provided by the ITAs.

  12. The Chemical Qualities of Some Milky Desserts Produced Empirically and Consumed in the Centre of Konya Province

    OpenAIRE

    SEÇİM, Yılmaz; UÇAR, Gürkan

    2014-01-01

    Eight milky desserts prepared for the consumption in Konya, and milky desserts made by empirical production were examined in terms of pH, viscosity, dry matter, ash, sugar, and fat. The average pH, viscosity, dry matter, ash, sugar and fat values of milky desserts offered for sale on the market were determined between 6.66-6.94, 9.36-85.00, 36.55-48.98, 0.35- 0.78, 24.26-27.69, 2.25-4.62, respectively. The values of milky desserts produced experimentally were determined 6.76-6.92, 13.40-106.4...

  13. Quality of life assessment in dogs and cats receiving chemotherapy

    DEFF Research Database (Denmark)

    Vøls, Kåre Kryger; Heden, Martin Anker; Kristensen, Annemarie Thuri

    2017-01-01

    comparative analysis of published papers on the effects of chemotherapy on QoL in dogs and cats were conducted. This was supplemented with a comparison of the parameters and domains used in veterinary QoL-assessments with those used in the Pediatric Quality of Life Inventory (PedsQL™) questionnaire designed...... to assess QoL in toddlers. Each of the identified publications including QoL-assessment in dogs and cats receiving chemotherapy applied a different method of QoL-assessment. In addition, the veterinary QoL-assessments were mainly focused on physical clinical parameters, whereas the emotional (6/11), social...... (4/11) and role (4/11) domains were less represented. QoL-assessment of cats and dogs receiving chemotherapy is in its infancy. The most commonly reported method to assess QoL was questionnaire based and mostly included physical and clinical parameters. Standardizing and including a complete range...

  14. Methodological Quality Assessment of Meta-analyses in Endodontics.

    Science.gov (United States)

    Kattan, Sereen; Lee, Su-Min; Kohli, Meetu R; Setzer, Frank C; Karabucak, Bekir

    2018-01-01

    The objectives of this review were to assess the methodological quality of published meta-analyses related to endodontics using the assessment of multiple systematic reviews (AMSTAR) tool and to provide a follow-up to previously published reviews. Three electronic databases were searched for eligible studies according to the inclusion and exclusion criteria: Embase via Ovid, The Cochrane Library, and Scopus. The electronic search was amended by a hand search of 6 dental journals (International Endodontic Journal; Journal of Endodontics; Australian Endodontic Journal; Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology; Endodontics and Dental Traumatology; and Journal of Dental Research). The searches were conducted to include articles published after July 2009, and the deadline for inclusion of the meta-analyses was November 30, 2016. The AMSTAR assessment tool was used to evaluate the methodological quality of all included studies. A total of 36 reports of meta-analyses were included. The overall quality of the meta-analyses reports was found to be medium, with an estimated mean overall AMSTAR score of 7.25 (95% confidence interval, 6.59-7.90). The most poorly assessed areas were providing an a priori design, the assessment of the status of publication, and publication bias. In recent publications in the field of endodontics, the overall quality of the reported meta-analyses is medium according to AMSTAR. Copyright © 2017 American Association of Endodontists. Published by Elsevier Inc. All rights reserved.

  15. Coupling hydrodynamic modeling and empirical measures of bed mobility to assess the risk of redd scour on a large regulated river

    Science.gov (United States)

    Christine L. May; Bonnie S. Pryor; Thomas E. Lisle; Margaret M. Lang

    2009-01-01

    n order to assess the risk of scour and fill of spawning redds during floods, an understanding of the relations among river discharge, bed mobility, and scour and fill depths in areas of the streambed heavily utilized by spawning salmon is needed. Our approach coupled numerical flow modeling and empirical data from the Trinity River, California, to quantify spatially...

  16. An Empirical Analysis of the Service Quality Gap in Business Education: Evidence from Higher Education in Pakistan

    Science.gov (United States)

    Sardar, Amber; Amjad, Shehla; Ali, Ubaid

    2016-01-01

    This survey investigated the relationship and gap between students' expectations and perceptions of perceived service quality of education, emphasizing the least effective service quality dimension. The study was based on primary data, which turned out to be most significant. Data were collected from 349 of 405 students through a questionnaire…

  17. 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…

  18. Conceptual frameworks and empirical approaches used to assess the impact of health research: an overview of reviews

    Directory of Open Access Journals (Sweden)

    Pistotti Vanna

    2011-06-01

    Full Text Available Abstract Background How to assess the impact of research is of growing interest to funders, policy makers and researchers mainly to understand the value of investments and to increase accountability. Broadly speaking the term "research impact" refers to the contribution of research activities to achieve desired societal outcomes. The aim of this overview is to identify the most common approaches to research impact assessment, categories of impact and their respective indicators. Methods We systematically searched the relevant literature (PubMed, The Cochrane Library (1990-2009 and funding agency websites. We included systematic reviews, theoretical and methodological papers, and empirical case-studies on how to evaluate research impact. We qualitatively summarised the included reports, as well the conceptual frameworks. Results We identified twenty-two reports belonging to four systematic reviews and 14 primary studies. These publications reported several theoretical frameworks and methodological approaches (bibliometrics, econometrics, ad hoc case studies. The "payback model" emerged as the most frequently used. Five broad categories of impact were identified: a advancing knowledge, b capacity building, c informing decision-making, d health benefits, e broad socio-economic benefits. For each proposed category of impact we summarized a set of indicators whose pros and cons are presented and briefly discussed. Conclusions This overview is a comprehensive, yet descriptive, contribution to summarize the conceptual framework and taxonomy of an heterogeneous and evolving area of research. A shared and comprehensive conceptual framework does not seem to be available yet and its single components (epidemiologic, economic, and social are often valued differently in different models.

  19. Conceptual frameworks and empirical approaches used to assess the impact of health research: an overview of reviews

    Science.gov (United States)

    2011-01-01

    Background How to assess the impact of research is of growing interest to funders, policy makers and researchers mainly to understand the value of investments and to increase accountability. Broadly speaking the term "research impact" refers to the contribution of research activities to achieve desired societal outcomes. The aim of this overview is to identify the most common approaches to research impact assessment, categories of impact and their respective indicators. Methods We systematically searched the relevant literature (PubMed, The Cochrane Library (1990-2009)) and funding agency websites. We included systematic reviews, theoretical and methodological papers, and empirical case-studies on how to evaluate research impact. We qualitatively summarised the included reports, as well the conceptual frameworks. Results We identified twenty-two reports belonging to four systematic reviews and 14 primary studies. These publications reported several theoretical frameworks and methodological approaches (bibliometrics, econometrics, ad hoc case studies). The "payback model" emerged as the most frequently used. Five broad categories of impact were identified: a) advancing knowledge, b) capacity building, c) informing decision-making, d) health benefits, e) broad socio-economic benefits. For each proposed category of impact we summarized a set of indicators whose pros and cons are presented and briefly discussed. Conclusions This overview is a comprehensive, yet descriptive, contribution to summarize the conceptual framework and taxonomy of an heterogeneous and evolving area of research. A shared and comprehensive conceptual framework does not seem to be available yet and its single components (epidemiologic, economic, and social) are often valued differently in different models. PMID:21702930

  20. Research Notes - Openness and Evolvability - Documentation Quality Assessment

    Science.gov (United States)

    2016-08-01

    4 2.1.8 Any issues with spelling, grammar or punctuation? ......................... 4 2.1.9 Any issues with sentence structure...5 2.1.11 Are illustrations relevant, consistent and clear? ................................. 6 2.1.12 Is translation to English clear...Assessment This process should be used to gauge the quality of documentation being assessed as part of the Standards, Architecture, Infrastructure and