WorldWideScience

Sample records for rigorous quality measures

  1. Quality of nuchal translucency measurements correlates with broader aspects of program rigor and culture of excellence.

    Science.gov (United States)

    Evans, Mark I; Krantz, David A; Hallahan, Terrence; Sherwin, John; Britt, David W

    2013-01-01

    To determine if nuchal translucency (NT) quality correlates with the extent to which clinics vary in rigor and quality control. We correlated NT performance quality (bias and precision) of 246,000 patients with two alternative measures of clinic culture - % of cases for whom nasal bone (NB) measurements were performed and % of requisitions correctly filled for race-ethnicity and weight. When requisition errors occurred in 5% (33%), the curve lowered to 0.93 MoM (p 90%, MoM was 0.99 compared to those quality exists independent of individual variation in NT quality, and two divergent indices of program rigor are associated with NT quality. Quality control must be program wide, and to effect continued improvement in the quality of NT results across time, the cultures of clinics must become a target for intervention. Copyright © 2013 S. Karger AG, Basel.

  2. Measuring Principal Performance: How Rigorous Are Commonly Used Principal Performance Assessment Instruments? A Quality School Leadership Issue Brief

    Science.gov (United States)

    Condon, Christopher; Clifford, Matthew

    2010-01-01

    This brief reviews the publicly available principal assessments and points superintendents and policy makers toward strong instruments to measure principal performance. Specifically, the measures included in this review are expressly intended to evaluate principal performance and have varying degrees of publicly available evidence of psychometric…

  3. Quality properties of pre- and post-rigor beef muscle after interventions with high frequency ultrasound.

    Science.gov (United States)

    Sikes, Anita L; Mawson, Raymond; Stark, Janet; Warner, Robyn

    2014-11-01

    The delivery of a consistent quality product to the consumer is vitally important for the food industry. The aim of this study was to investigate the potential for using high frequency ultrasound applied to pre- and post-rigor beef muscle on the metabolism and subsequent quality. High frequency ultrasound (600kHz at 48kPa and 65kPa acoustic pressure) applied to post-rigor beef striploin steaks resulted in no significant effect on the texture (peak force value) of cooked steaks as measured by a Tenderometer. There was no added benefit of ultrasound treatment above that of the normal ageing process after ageing of the steaks for 7days at 4°C. Ultrasound treatment of post-rigor beef steaks resulted in a darkening of fresh steaks but after ageing for 7days at 4°C, the ultrasound-treated steaks were similar in colour to that of the aged, untreated steaks. High frequency ultrasound (2MHz at 48kPa acoustic pressure) applied to pre-rigor beef neck muscle had no effect on the pH, but the calculated exhaustion factor suggested that there was some effect on metabolism and actin-myosin interaction. However, the resultant texture of cooked, ultrasound-treated muscle was lower in tenderness compared to the control sample. After ageing for 3weeks at 0°C, the ultrasound-treated samples had the same peak force value as the control. High frequency ultrasound had no significant effect on the colour parameters of pre-rigor beef neck muscle. This proof-of-concept study showed no effect of ultrasound on quality but did indicate that the application of high frequency ultrasound to pre-rigor beef muscle shows potential for modifying ATP turnover and further investigation is warranted. Crown Copyright © 2014. Published by Elsevier B.V. All rights reserved.

  4. Rigorous results on measuring the quark charge below color threshold

    International Nuclear Information System (INIS)

    Lipkin, H.J.

    1979-01-01

    Rigorous theorems are presented showing that contributions from a color nonsinglet component of the current to matrix elements of a second order electromagnetic transition are suppressed by factors inversely proportional to the energy of the color threshold. Parton models which obtain matrix elements proportional to the color average of the square of the quark charge are shown to neglect terms of the same order of magnitude as terms kept. (author)

  5. Single-case synthesis tools I: Comparing tools to evaluate SCD quality and rigor.

    Science.gov (United States)

    Zimmerman, Kathleen N; Ledford, Jennifer R; Severini, Katherine E; Pustejovsky, James E; Barton, Erin E; Lloyd, Blair P

    2018-03-03

    Tools for evaluating the quality and rigor of single case research designs (SCD) are often used when conducting SCD syntheses. Preferred components include evaluations of design features related to the internal validity of SCD to obtain quality and/or rigor ratings. Three tools for evaluating the quality and rigor of SCD (Council for Exceptional Children, What Works Clearinghouse, and Single-Case Analysis and Design Framework) were compared to determine if conclusions regarding the effectiveness of antecedent sensory-based interventions for young children changed based on choice of quality evaluation tool. Evaluation of SCD quality differed across tools, suggesting selection of quality evaluation tools impacts evaluation findings. Suggestions for selecting an appropriate quality and rigor assessment tool are provided and across-tool conclusions are drawn regarding the quality and rigor of studies. Finally, authors provide guidance for using quality evaluations in conjunction with outcome analyses when conducting syntheses of interventions evaluated in the context of SCD. Copyright © 2018 Elsevier Ltd. All rights reserved.

  6. Differential rigor development in red and white muscle revealed by simultaneous measurement of tension and stiffness.

    Science.gov (United States)

    Kobayashi, Masahiko; Takemori, Shigeru; Yamaguchi, Maki

    2004-02-10

    Based on the molecular mechanism of rigor mortis, we have proposed that stiffness (elastic modulus evaluated with tension response against minute length perturbations) can be a suitable index of post-mortem rigidity in skeletal muscle. To trace the developmental process of rigor mortis, we measured stiffness and tension in both red and white rat skeletal muscle kept in liquid paraffin at 37 and 25 degrees C. White muscle (in which type IIB fibres predominate) developed stiffness and tension significantly more slowly than red muscle, except for soleus red muscle at 25 degrees C, which showed disproportionately slow rigor development. In each of the examined muscles, stiffness and tension developed more slowly at 25 degrees C than at 37 degrees C. In each specimen, tension always reached its maximum level earlier than stiffness, and then decreased more rapidly and markedly than stiffness. These phenomena may account for the sequential progress of rigor mortis in human cadavers.

  7. Effects of rigor status during high-pressure processing on the physical qualities of farm-raised abalone (Haliotis rufescens).

    Science.gov (United States)

    Hughes, Brianna H; Greenberg, Neil J; Yang, Tom C; Skonberg, Denise I

    2015-01-01

    High-pressure processing (HPP) is used to increase meat safety and shelf-life, with conflicting quality effects depending on rigor status during HPP. In the seafood industry, HPP is used to shuck and pasteurize oysters, but its use on abalones has only been minimally evaluated and the effect of rigor status during HPP on abalone quality has not been reported. Farm-raised abalones (Haliotis rufescens) were divided into 12 HPP treatments and 1 unprocessed control treatment. Treatments were processed pre-rigor or post-rigor at 2 pressures (100 and 300 MPa) and 3 processing times (1, 3, and 5 min). The control was analyzed post-rigor. Uniform plugs were cut from adductor and foot meat for texture profile analysis, shear force, and color analysis. Subsamples were used for scanning electron microscopy of muscle ultrastructure. Texture profile analysis revealed that post-rigor processed abalone was significantly (P abalone meat was more tender than pre-rigor processed meat, and post-rigor processed foot meat was lighter in color than pre-rigor processed foot meat, suggesting that waiting for rigor to resolve prior to processing abalones may improve consumer perceptions of quality and market value. © 2014 Institute of Food Technologists®

  8. Measuring Quality

    DEFF Research Database (Denmark)

    Næsby, Torben

    local differences in the quality of day care facilities in Denmark (Nordahl et al, 2012; Hansen et al, 2016) and also that we in fact have little knowledge of whether the desired politically determined targets are being met or not and what the quality is really like. In order to measure the quality......The Danish Day Care Facilities Act (2015), which provides the curriculum on which day care education is based, does not stipulate very clearly what children should learn and therefore how educational processes in preschools should be organised. This means that we must accept that there are large...... of preschool in Denmark a new research project using the ECERS 3 instrument has been launched. This could capture quality from a global quality standard’s perspective, building the basis for a further investigation of practice in Danish early childhood provisions and centers in a more narrow approach...

  9. Rigorous approximation of stationary measures and convergence to equilibrium for iterated function systems

    International Nuclear Information System (INIS)

    Galatolo, Stefano; Monge, Maurizio; Nisoli, Isaia

    2016-01-01

    We study the problem of the rigorous computation of the stationary measure and of the rate of convergence to equilibrium of an iterated function system described by a stochastic mixture of two or more dynamical systems that are either all uniformly expanding on the interval, either all contracting. In the expanding case, the associated transfer operators satisfy a Lasota–Yorke inequality, we show how to compute a rigorous approximations of the stationary measure in the L "1 norm and an estimate for the rate of convergence. The rigorous computation requires a computer-aided proof of the contraction of the transfer operators for the maps, and we show that this property propagates to the transfer operators of the IFS. In the contracting case we perform a rigorous approximation of the stationary measure in the Wasserstein–Kantorovich distance and rate of convergence, using the same functional analytic approach. We show that a finite computation can produce a realistic computation of all contraction rates for the whole parameter space. We conclude with a description of the implementation and numerical experiments. (paper)

  10. Evaluation of physical dimension changes as nondestructive measurements for monitoring rigor mortis development in broiler muscles.

    Science.gov (United States)

    Cavitt, L C; Sams, A R

    2003-07-01

    Studies were conducted to develop a non-destructive method for monitoring the rate of rigor mortis development in poultry and to evaluate the effectiveness of electrical stimulation (ES). In the first study, 36 male broilers in each of two trials were processed at 7 wk of age. After being bled, half of the birds received electrical stimulation (400 to 450 V, 400 to 450 mA, for seven pulses of 2 s on and 1 s off), and the other half were designated as controls. At 0.25 and 1.5 h postmortem (PM), carcasses were evaluated for the angles of the shoulder, elbow, and wing tip and the distance between the elbows. Breast fillets were harvested at 1.5 h PM (after chilling) from all carcasses. Fillet samples were excised and frozen for later measurement of pH and R-value, and the remainder of each fillet was held on ice until 24 h postmortem. Shear value and pH means were significantly lower, but R-value means were higher (P rigor mortis by ES. The physical dimensions of the shoulder and elbow changed (P rigor mortis development and with ES. These results indicate that physical measurements of the wings maybe useful as a nondestructive indicator of rigor development and for monitoring the effectiveness of ES. In the second study, 60 male broilers in each of two trials were processed at 7 wk of age. At 0.25, 1.5, 3.0, and 6.0 h PM, carcasses were evaluated for the distance between the elbows. At each time point, breast fillets were harvested from each carcass. Fillet samples were excised and frozen for later measurement of pH and sacromere length, whereas the remainder of each fillet was held on ice until 24 h PM. Shear value and pH means (P rigor mortis development. Elbow distance decreased (P rigor development and was correlated (P rigor mortis development in broiler carcasses.

  11. Experimental evaluation of rigor mortis. VIII. Estimation of time since death by repeated measurements of the intensity of rigor mortis on rats.

    Science.gov (United States)

    Krompecher, T

    1994-10-21

    The development of the intensity of rigor mortis was monitored in nine groups of rats. The measurements were initiated after 2, 4, 5, 6, 8, 12, 15, 24, and 48 h post mortem (p.m.) and lasted 5-9 h, which ideally should correspond to the usual procedure after the discovery of a corpse. The experiments were carried out at an ambient temperature of 24 degrees C. Measurements initiated early after death resulted in curves with a rising portion, a plateau, and a descending slope. Delaying the initial measurement translated into shorter rising portions, and curves initiated 8 h p.m. or later are comprised of a plateau and/or a downward slope only. Three different phases were observed suggesting simple rules that can help estimate the time since death: (1) if an increase in intensity was found, the initial measurements were conducted not later than 5 h p.m.; (2) if only a decrease in intensity was observed, the initial measurements were conducted not earlier than 7 h p.m.; and (3) at 24 h p.m., the resolution is complete, and no further changes in intensity should occur. Our results clearly demonstrate that repeated measurements of the intensity of rigor mortis allow a more accurate estimation of the time since death of the experimental animals than the single measurement method used earlier. A critical review of the literature on the estimation of time since death on the basis of objective measurements of the intensity of rigor mortis is also presented.

  12. [A new formula for the measurement of rigor mortis: the determination of the FRR-index (author's transl)].

    Science.gov (United States)

    Forster, B; Ropohl, D; Raule, P

    1977-07-05

    The manual examination of rigor mortis as currently used and its often subjective evaluation frequently produced highly incorrect deductions. It is therefore desirable that such inaccuracies should be replaced by the objective measuring of rigor mortis at the extremities. To that purpose a method is described which can also be applied in on-the-spot investigations and a new formula for the determination of rigor mortis--indices (FRR) is introduced.

  13. Study of the quality characteristics in cold-smoked salmon (Salmo salar) originating from pre- or post-rigor raw material.

    Science.gov (United States)

    Birkeland, S; Akse, L

    2010-01-01

    Improved slaughtering procedures in the salmon industry have caused a delayed onset of rigor mortis and, thus, a potential for pre-rigor secondary processing. The aim of this study was to investigate the effect of rigor status at time of processing on quality traits color, texture, sensory, microbiological, in injection salted, and cold-smoked Atlantic salmon (Salmo salar). Injection of pre-rigor fillets caused a significant (Prigor processed fillets; however, post-rigor (1477 ± 38 g) fillets had a significant (P>0.05) higher fracturability than pre-rigor fillets (1369 ± 71 g). Pre-rigor fillets were significantly (Prigor fillets (37.8 ± 0.8) and had significantly lower (Prigor processed fillets. This study showed that similar quality characteristics can be obtained in cold-smoked products processed either pre- or post-rigor when using suitable injection salting protocols and smoking techniques. © 2010 Institute of Food Technologists®

  14. Rigorous approach to the comparison between experiment and theory in Casimir force measurements

    International Nuclear Information System (INIS)

    Klimchitskaya, G L; Chen, F; Decca, R S; Fischbach, E; Krause, D E; Lopez, D; Mohideen, U; Mostepanenko, V M

    2006-01-01

    In most experiments on the Casimir force the comparison between measurement data and theory was done using the concept of the root-mean-square deviation, a procedure that has been criticized in the literature. Here we propose a special statistical analysis which should be performed separately for the experimental data and for the results of the theoretical computations. In so doing, the random, systematic and total experimental errors are found as functions of separation, taking into account the distribution laws for each error at 95% confidence. Independently, all theoretical errors are combined to obtain the total theoretical error at the same confidence. Finally, the confidence interval for the differences between theoretical and experimental values is obtained as a function of separation. This rigorous approach is applied to two recent experiments on the Casimir effect

  15. Effects of Pre and Post-Rigor Marinade Injection on Some Quality Parameters of Longissimus Dorsi Muscles

    Science.gov (United States)

    Fadıloğlu, Eylem Ezgi; Serdaroğlu, Meltem

    2018-01-01

    Abstract This study was conducted to evaluate the effects of pre and post-rigor marinade injections on some quality parameters of Longissimus dorsi (LD) muscles. Three marinade formulations were prepared with 2% NaCl, 2% NaCl+0.5 M lactic acid and 2% NaCl+0.5 M sodium lactate. In this study marinade uptake, pH, free water, cooking loss, drip loss and color properties were analyzed. Injection time had significant effect on marinade uptake levels of samples. Regardless of marinate formulation, marinade uptake of pre-rigor samples injected with marinade solutions were higher than post rigor samples. Injection of sodium lactate increased pH values of samples whereas lactic acid injection decreased pH. Marinade treatment and storage period had significant effect on cooking loss. At each evaluation period interaction between marinade treatment and injection time showed different effect on free water content. Storage period and marinade application had significant effect on drip loss values. Drip loss in all samples increased during the storage. During all storage days, lowest CIE L* value was found in pre-rigor samples injected with sodium lactate. Lactic acid injection caused color fade in pre-rigor and post-rigor samples. Interaction between marinade treatment and storage period was found statistically significant (p<0.05). At day 0 and 3, the lowest CIE b* values obtained pre-rigor samples injected with sodium lactate and there were no differences were found in other samples. At day 6, no significant differences were found in CIE b* values of all samples. PMID:29805282

  16. Diffraction-based overlay measurement on dedicated mark using rigorous modeling method

    Science.gov (United States)

    Lu, Hailiang; Wang, Fan; Zhang, Qingyun; Chen, Yonghui; Zhou, Chang

    2012-03-01

    Diffraction Based Overlay (DBO) is widely evaluated by numerous authors, results show DBO can provide better performance than Imaging Based Overlay (IBO). However, DBO has its own problems. As well known, Modeling based DBO (mDBO) faces challenges of low measurement sensitivity and crosstalk between various structure parameters, which may result in poor accuracy and precision. Meanwhile, main obstacle encountered by empirical DBO (eDBO) is that a few pads must be employed to gain sufficient information on overlay-induced diffraction signature variations, which consumes more wafer space and costs more measuring time. Also, eDBO may suffer from mark profile asymmetry caused by processes. In this paper, we propose an alternative DBO technology that employs a dedicated overlay mark and takes a rigorous modeling approach. This technology needs only two or three pads for each direction, which is economic and time saving. While overlay measurement error induced by mark profile asymmetry being reduced, this technology is expected to be as accurate and precise as scatterometry technologies.

  17. Software product quality measurement

    OpenAIRE

    Godliauskas, Eimantas

    2016-01-01

    This paper analyses Ruby product quality measures, suggesting three new measures for Ruby product quality measurement tool Rubocop to measure Ruby product quality characteristics defined in ISO 2502n standard series. This paper consists of four main chapters. The first chapter gives a brief view of software product quality and software product quality measurement. The second chapter analyses object oriented quality measures. The third chapter gives a brief view of the most popular Ruby qualit...

  18. Total Data Quality Management: A Study of Bridging Rigor and Relevance

    NARCIS (Netherlands)

    Wijnhoven, Alphonsus B.J.M.; Boelens, R.; Middel, H.G.A.; Louissen, K.

    2007-01-01

    Ensuring data quality is of crucial importance to organizations. The Total Data Quality Management (TDQM) theory provides a methodology to ensure data quality. Although well researched, the TDQM methodology is not easy to apply. In the case of Honeywell Emmen, we found that the application of the

  19. A rigorous assessment of tree height measurements obtained using airborne LIDAR and conventional field methods.

    Science.gov (United States)

    Hans-Erik Andersen; Stephen E. Reutebuch; Robert J. McGaughey

    2006-01-01

    Tree height is an important variable in forest inventory programs but is typically time-consuming and costly to measure in the field using conventional techniques. Airborne light detection and ranging (LIDAR) provides individual tree height measurements that are highly correlated with field-derived measurements, but the imprecision of conventional field techniques does...

  20. Effect of pre-rigor stretch and various constant temperatures on the rate of post-mortem pH fall, rigor mortis and some quality traits of excised porcine biceps femoris muscle strips.

    Science.gov (United States)

    Vada-Kovács, M

    1996-01-01

    Porcine biceps femoris strips of 10 cm original length were stretched by 50% and fixed within 1 hr post mortem then subjected to temperatures of 4 °, 15 ° or 36 °C until they attained their ultimate pH. Unrestrained control muscle strips, which were left to shorten freely, were similarly treated. Post-mortem metabolism (pH, R-value) and shortening were recorded; thereafter ultimate meat quality traits (pH, lightness, extraction and swelling of myofibrils) were determined. The rate of pH fall at 36 °C, as well as ATP breakdown at 36 and 4 °C, were significantly reduced by pre-rigor stretch. The relationship between R-value and pH indicated cold shortening at 4 °C. Myofibrils isolated from pre-rigor stretched muscle strips kept at 36 °C showed the most severe reduction of hydration capacity, while paleness remained below extreme values. However, pre-rigor stretched myofibrils - when stored at 4 °C - proved to be superior to shortened ones in their extractability and swelling.

  1. Meat quality and rigor mortis development in broiler chickens with gas-induced anoxia and postmortem electrical stimulation.

    Science.gov (United States)

    Sams, A R; Dzuik, C S

    1999-10-01

    This study was conducted to evaluate the combined rigor-accelerating effects of postmortem electrical stimulation (ES) and argon-induced anoxia (Ar) of broiler chickens. One hundred broilers were processed in the following treatments: untreated controls, ES, Ar, or Ar with ES (Ar + ES). Breast fillets were harvested at 1 h postmortem for all treatments or at 1 and 6 h postmortem for the control carcasses. Fillets were sampled for pH and ratio of inosine to adenosine (R-value) and were then individually quick frozen (IQF) or aged on ice (AOI) until 24 h postmortem. Color was measured in the AOI fillets at 24 h postmortem. All fillets were then cooked and evaluated for Allo-Kramer shear value. The Ar treatment accelerated the normal pH decline, whereas the ES and AR + ES treatments yielded even lower pH values at 1 h postmortem. The Ar + ES treatment had a greater R-value than the ES treatment, which was greater than either the Ar or 1-h controls, which, in turn, were not different from each other. The ES treatment had the lowest L* value, and ES, Ar, and Ar + ES produced significantly higher a* values than the 1-h controls. For the IQF fillets, the ES and Ar + ES treatments were not different in shear value but were lower than Ar, which was lower than the 1-h controls. The same was true for the AOI fillets except that the ES and the Ar treatments were not different. These results indicated that although ES and Ar had rigor-accelerating and tenderizing effects, ES seemed to be more effective than Ar; there was little enhancement when Ar was added to the ES treatment and fillets were deboned at 1 h postmortem.

  2. MDS Quality Measures

    Data.gov (United States)

    U.S. Department of Health & Human Services — A list of the quality measures displayed on Nursing Home Compare, excluding Measures of Rehospitalization, Emergency Room Visit, and Community Discharge. Each row...

  3. Is there anything nontrivial about caring in nursing that is rigorously measureable?

    Science.gov (United States)

    Sumner, J.; Fisher, W. P., Jr.

    2016-11-01

    Is there anything about the well-developed body of theory around caring in nursing that leads towards improved measurement and management? Nursing is primarily practical in character; remarkably, the theory of caring in nursing remains to this day disconnected from practice in fundamental ways. Habermas' developmental theory of moral consciousness, rooted in the work of Kohlberg, supports a theory of caring in nursing as a form of communicative action. The genesis of this connection between caring in nursing and communicative action is deeply rooted in human vulnerability and the need for ‘considerateness.’ Vulnerability is always present in any human interaction and none more so than in nursing. The theory components were the personal selves of both nurse and patient, the professional self of the nurse, the illness self of the patient and interaction. It is within the latter that moral maturity emerges across preconventional, conventional and post conventional developmental levels. Metrologically, concept analysis of the theory had to be focused by the demands of scale construction on writing testable items. Pilot studies were conducted in three countries; seven subscales were theorized and identified in the data. Cronbach's Alpha was over .85 for all scales, with acceptable model fit. The subscales measure the theoretical constructs in ways utilizable in nursing practice.

  4. Measurement quality assurance

    International Nuclear Information System (INIS)

    Eisenhower, E.H.

    1988-01-01

    The quality of a radiation protection program can be no better than the quality of the measurements made to support it. In many cases, that quality is unknown and is merely implied on the basis of a calibration of a measuring instrument. If that calibration is inappropriate or is performed improperly, the measurement result will be inaccurate and misleading. Assurance of measurement quality can be achieved if appropriate procedures are followed, including periodic quality control actions that demonstrate adequate performance. Several national measurement quality assurance (MQA) programs are operational or under development in specific areas. They employ secondary standards laboratories that provide a high-quality link between the National Bureau of Standards and measurements made at the field use level. The procedures followed by these secondary laboratories to achieve MQA will be described, as well as plans for similar future programs. A growing general national interest in quality assurance, combined with strong specific motivations for MQA in the area of ionizing radiation, will provide continued demand for appropriate national programs. Such programs must, however, employ procedures that are cost effective and must be developed with participation by all affected parties

  5. Measurements of the degree of development of rigor mortis as an indicator of stress in slaughtered pigs.

    Science.gov (United States)

    Warriss, P D; Brown, S N; Knowles, T G

    2003-12-13

    The degree of development of rigor mortis in the carcases of slaughter pigs was assessed subjectively on a three-point scale 35 minutes after they were exsanguinated, and related to the levels of cortisol, lactate and creatine kinase in blood collected at exsanguination. Earlier rigor development was associated with higher concentrations of these stress indicators in the blood. This relationship suggests that the mean rigor score, and the frequency distribution of carcases that had or had not entered rigor, could be used as an index of the degree of stress to which the pigs had been subjected.

  6. ASTM Committee C28: International Standards for Properties and Performance of Advanced Ceramics-Three Decades of High-Quality, Technically-Rigorous Normalization

    Science.gov (United States)

    Jenkins, Michael G.; Salem, Jonathan A.

    2016-01-01

    Physical and mechanical properties and performance of advanced ceramics and glasses are difficult to measure correctly without the proper techniques. For over three decades, ASTM Committee C28 on Advanced Ceramics, has developed high-quality, technically-rigorous, full-consensus standards (e.g., test methods, practices, guides, terminology) to measure properties and performance of monolithic and composite ceramics that may be applied to glasses in some cases. These standards contain testing particulars for many mechanical, physical, thermal, properties and performance of these materials. As a result these standards are used to generate accurate, reliable, repeatable and complete data. Within Committee C28, users, producers, researchers, designers, academicians, etc. have written, continually updated, and validated through round-robin test programs, 50 standards since the Committee's founding in 1986. This paper provides a detailed retrospective of the 30 years of ASTM Committee C28 including a graphical pictogram listing of C28 standards along with examples of the tangible benefits of standards for advanced ceramics to demonstrate their practical applications.

  7. ASTM Committee C28: International Standards for Properties and Performance of Advanced Ceramics, Three Decades of High-quality, Technically-rigorous Normalization

    Science.gov (United States)

    Jenkins, Michael G.; Salem, Jonathan A.

    2016-01-01

    Physical and mechanical properties and performance of advanced ceramics and glasses are difficult to measure correctly without the proper techniques. For over three decades, ASTM Committee C28 on Advanced Ceramics, has developed high quality, rigorous, full-consensus standards (e.g., test methods, practices, guides, terminology) to measure properties and performance of monolithic and composite ceramics that may be applied to glasses in some cases. These standards testing particulars for many mechanical, physical, thermal, properties and performance of these materials. As a result these standards provide accurate, reliable, repeatable and complete data. Within Committee C28 users, producers, researchers, designers, academicians, etc. have written, continually updated, and validated through round-robin test programs, nearly 50 standards since the Committees founding in 1986. This paper provides a retrospective review of the 30 years of ASTM Committee C28 including a graphical pictogram listing of C28 standards along with examples of the tangible benefits of advanced ceramics standards to demonstrate their practical applications.

  8. Measurement and characterization of slippage and slip-law using a rigorous analysis in dynamics of oscillating rheometer: Newtonian fluid

    Science.gov (United States)

    Azese, Martin Ndi

    2018-02-01

    This article presents a rigorous calculation involving velocity slip of Newtonian fluid where we analyze and solve the unsteady Navier-Stokes equation with emphasis on its rheological implication. The goal of which is to model a simple yet effective non-invasive way of quantifying and characterizing slippage. Indeed this contrasts with previous techniques that exhibit inherent limitations whereby injecting foreign objects usually alter the flow. This problem is built on the Couette rheological flow system such that μ-Newton force and μ-stress are captured and processed to obtain wall slip. Our model leads to a linear partial differential equation and upon enforcing linear-Navier slip boundary conditions (BC) yields inhomogeneous and unsteady "Robin-type" BC. A dimensional analysis reveals salient dimensionless parameters: Roshko, Strouhal, and Reynolds while highlighting slip-numbers from BC. We also solve the slip-free case to corroborate and validate our results. Several graphs are generated showing slip effects, particularly, studying how slip-numbers, a key input, differentiate themselves to the outputs. We also confirm this in a graphical fashion by presenting the flow profile across channel width, velocity, and stress at both walls. A perturbation scheme is introduced to calculate long-time behavior when the system seats for long. More importantly, in the end, we justify the existence of a reverse mechanism, where an inverse transformation like Fourier transform uses the output data to retrieve slip-numbers and slip law, thus quantifying and characterizing slip. Therefore, we not only substantiate our analysis, but we also justify our claim, measurement and characterization, and theorize realizability of our proposition.

  9. Measuring physical neighborhood quality related to health.

    Science.gov (United States)

    Rollings, Kimberly A; Wells, Nancy M; Evans, Gary W

    2015-04-29

    Although sociodemographic factors are one aspect of understanding the effects of neighborhood environments on health, equating neighborhood quality with socioeconomic status ignores the important role of physical neighborhood attributes. Prior work on neighborhood environments and health has relied primarily on level of socioeconomic disadvantage as the indicator of neighborhood quality without attention to physical neighborhood quality. A small but increasing number of studies have assessed neighborhood physical characteristics. Findings generally indicate that there is an association between living in deprived neighborhoods and poor health outcomes, but rigorous evidence linking specific physical neighborhood attributes to particular health outcomes is lacking. This paper discusses the methodological challenges and limitations of measuring physical neighborhood environments relevant to health and concludes with proposed directions for future work.

  10. Monitoring muscle optical scattering properties during rigor mortis

    Science.gov (United States)

    Xia, J.; Ranasinghesagara, J.; Ku, C. W.; Yao, G.

    2007-09-01

    Sarcomere is the fundamental functional unit in skeletal muscle for force generation. In addition, sarcomere structure is also an important factor that affects the eating quality of muscle food, the meat. The sarcomere structure is altered significantly during rigor mortis, which is the critical stage involved in transforming muscle to meat. In this paper, we investigated optical scattering changes during the rigor process in Sternomandibularis muscles. The measured optical scattering parameters were analyzed along with the simultaneously measured passive tension, pH value, and histology analysis. We found that the temporal changes of optical scattering, passive tension, pH value and fiber microstructures were closely correlated during the rigor process. These results suggested that sarcomere structure changes during rigor mortis can be monitored and characterized by optical scattering, which may find practical applications in predicting meat quality.

  11. Comparison of rigorous modelling of different structure profiles on photomasks for quantitative linewidth measurements by means of UV- or DUV-optical microscopy

    Science.gov (United States)

    Ehret, Gerd; Bodermann, Bernd; Woehler, Martin

    2007-06-01

    The optical microscopy is an important instrument for dimensional characterisation or calibration of micro- and nanostructures, e.g. chrome structures on photomasks. In comparison to scanning electron microscopy (possible contamination of the sample) and atomic force microscopy (slow, risk of damage) optical microscopy is a fast and non destructive metrology method. The precise quantitative determination of the linewidth from the microscope image is, however, only possible by knowledge of the geometry of the structures and their consideration in the optical modelling. We compared two different rigorous model approaches, the Rigorous Coupled Wave Analysis (RCWA) and the Finite Elements Method (FEM) for modelling of structures with different edge angles, linewidths, line to space ratios and polarisations. The RCWA method can adapt inclined edges profiles only by a staircase approximation leading to increased modelling errors of the RCWA method. Even today's sophisticated rigorous methods still show problems with TM-polarisation. Therefore both rigorous methods are compared in terms of their convergence for TE and TM- polarisation. Beyond that also the influence of typical illumination wavelengths (365 nm, 248 nm and 193 nm) on the microscope images and their contribution to the measuring uncertainty budget will be discussed.

  12. Measuring quality progress

    Science.gov (United States)

    Lambert, Larry D.

    The study by the American Productivity & Quality Center (APQC) was commissioned by Loral Space Information Systems, Inc. and the National Aeronautics and Space Administration (NASA) to evaluate internal assessment systems. APQC benchmarked approaches to the internal assessment of quality management systems in three phases. The first phase included work conducted for the International Benchmarking Clearinghouse (IBC) and consisted of an in-depth analysis of the 1991 Malcolm Baldrige National Quality Award criteria. The second phase was also performed for the IBC and compared the 1991 award criteria among the following quality awards: Deming Prize, Malcolm Baldrige National Quality Award, The President's Award for Quality and Productivity Improvement, The NASA Excellence Award (The George M. Lowe Trophy) for Quality and Productivity Improvement and the Shigeo Shingo Award for Excellence in Manufacturing. The third phase compared the internal implementation approaches of 23 companies selected from American industry for their recognized, formal assessment systems.

  13. Measuring quality progress

    Science.gov (United States)

    Lambert, Larry D.

    1992-01-01

    The study by the American Productivity & Quality Center (APQC) was commissioned by Loral Space Information Systems, Inc. and the National Aeronautics and Space Administration (NASA) to evaluate internal assessment systems. APQC benchmarked approaches to the internal assessment of quality management systems in three phases. The first phase included work conducted for the International Benchmarking Clearinghouse (IBC) and consisted of an in-depth analysis of the 1991 Malcolm Baldrige National Quality Award criteria. The second phase was also performed for the IBC and compared the 1991 award criteria among the following quality awards: Deming Prize, Malcolm Baldrige National Quality Award, The President's Award for Quality and Productivity Improvement, The NASA Excellence Award (The George M. Lowe Trophy) for Quality and Productivity Improvement and the Shigeo Shingo Award for Excellence in Manufacturing. The third phase compared the internal implementation approaches of 23 companies selected from American industry for their recognized, formal assessment systems.

  14. Measuring health care process quality with software quality measures.

    Science.gov (United States)

    Yildiz, Ozkan; Demirörs, Onur

    2012-01-01

    Existing quality models focus on some specific diseases, clinics or clinical areas. Although they contain structure, process, or output type measures, there is no model which measures quality of health care processes comprehensively. In addition, due to the not measured overall process quality, hospitals cannot compare quality of processes internally and externally. To bring a solution to above problems, a new model is developed from software quality measures. We have adopted the ISO/IEC 9126 software quality standard for health care processes. Then, JCIAS (Joint Commission International Accreditation Standards for Hospitals) measurable elements were added to model scope for unifying functional requirements. Assessment (diagnosing) process measurement results are provided in this paper. After the application, it was concluded that the model determines weak and strong aspects of the processes, gives a more detailed picture for the process quality, and provides quantifiable information to hospitals to compare their processes with multiple organizations.

  15. Quality measurement in diabetes care.

    Science.gov (United States)

    Leas, Brian F; Berman, Bettina; Kash, Kathryn M; Crawford, Albert G; Toner, Richard W; Goldfarb, Neil I; Nash, David B

    2009-10-01

    This study aimed to evaluate diabetes quality measurement efforts, assess their strengths and areas for improvement, and identify gaps not adequately addressed by these measures. We conducted an environmental scan of diabetes quality measures, focusing on metrics included in the National Quality Measures Clearinghouse or promulgated by leading measurement organizations. Key informant interviews were also completed with thought leaders who develop, promote, and use quality measures. The environmental scan identified 146 distinct measures spanning 31 clinical processes or outcomes. This suggests a measurement system that is both redundant and inconsistent, with many different measures assessing the same clinical indicators. Interviewees believe that current diabetes measurement efforts are excessively broad and complex and expressed a need for better harmonization of these measures. Several gaps were also found, including a lack of measures focusing on population health, structural elements of health care, and prevention of diabetes.

  16. Measuring quality of care: considering conceptual approaches to quality indicator development and evaluation.

    Science.gov (United States)

    Stelfox, Henry T; Straus, Sharon E

    2013-12-01

    In this article, we describe one approach for developing and evaluating quality indicators. We focus on describing different conceptual approaches to quality indicator development, review one approach for developing quality indicators, outline how to evaluate quality indicators once developed, and discuss quality indicator maintenance. The key steps for developing quality indicators include specifying a clear goal for the indicators; using methodologies to incorporate evidence, expertise, and patient perspectives; and considering contextual factors and logistics of implementation. The Strategic Framework Board and the National Quality Measure Clearinghouse have developed criteria for evaluating quality indicators that complement traditional psychometric evaluations. Optimal strategies for quality indicator maintenance and dissemination have not been determined, but experiences with clinical guideline maintenance may be informative. For quality indicators to effectively guide quality improvement efforts, they must be developed, evaluated, maintained, and implemented using rigorous evidence-informed practices. Copyright © 2013 Elsevier Inc. All rights reserved.

  17. Service Quality Measurements: A Review

    OpenAIRE

    Ali Ramezani Ghotbabadi; Setareh Feiz; Rohaizat Baharun

    2015-01-01

    Service quality measurement is one of the significant measurement tools for firms to understand consumers’ needs and wants by analyzing the experience of consumers and customers’ satisfaction on the services provided. Although there is no general agreement on one particular model used as the measurement of service quality perceived, there are some effective models offered by researchers during decades of study in this area. In the recent years, researchers believe that service quality is mult...

  18. Performance of biometric quality measures.

    Science.gov (United States)

    Grother, Patrick; Tabassi, Elham

    2007-04-01

    We document methods for the quantitative evaluation of systems that produce a scalar summary of a biometric sample's quality. We are motivated by a need to test claims that quality measures are predictive of matching performance. We regard a quality measurement algorithm as a black box that converts an input sample to an output scalar. We evaluate it by quantifying the association between those values and observed matching results. We advance detection error trade-off and error versus reject characteristics as metrics for the comparative evaluation of sample quality measurement algorithms. We proceed this with a definition of sample quality, a description of the operational use of quality measures. We emphasize the performance goal by including a procedure for annotating the samples of a reference corpus with quality values derived from empirical recognition scores.

  19. Quality Assurance of Chemical Measurements.

    Science.gov (United States)

    Taylor, John K.

    1981-01-01

    Reviews aspects of quality control (methods to control errors) and quality assessment (verification that systems are operating within acceptable limits) including an analytical measurement system, quality control by inspection, control charts, systematic errors, and use of SRMs, materials for which properties are certified by the National Bureau…

  20. Classroom Talk for Rigorous Reading Comprehension Instruction

    Science.gov (United States)

    Wolf, Mikyung Kim; Crosson, Amy C.; Resnick, Lauren B.

    2004-01-01

    This study examined the quality of classroom talk and its relation to academic rigor in reading-comprehension lessons. Additionally, the study aimed to characterize effective questions to support rigorous reading comprehension lessons. The data for this study included 21 reading-comprehension lessons in several elementary and middle schools from…

  1. AMOS Seeing Quality Measurements.

    Science.gov (United States)

    1976-01-01

    Measurement Atmosphere Turbulence Propagation Observatory Acoustic Sounder Maui Optical Station Astronomy Microthermal Probe TEAL BLUE Degradation...presence of the site structures. Instruments used were an acoustic sounder (to probe the altitudes of 100 to 1000 ft), fine- wire microthermal probes...responsibility during the experiment for the microthermal probes. The report itself, while compiled and edited at RADC, may be considered as coming from

  2. Venous Thromboembolism Quality Measures Fail to Accurately Measure Quality.

    Science.gov (United States)

    Lau, Brandyn D; Streiff, Michael B; Pronovost, Peter J; Haut, Elliott R

    2018-03-20

    Venous thromboembolism (VTE) is 1 of the most common causes of preventable harm for patients in hospitals. Consequently, the Joint Commission, the Centers for Medicare and Medicaid Services, the Agency for Healthcare Research and Quality, the United Kingdom Care Quality Commission, the Australian Commission on Safety and Quality in Health Care, the Maryland Health Services Cost Review Commission, and the American College of Surgeons have prioritized measuring and reporting VTE outcomes with the goal of reducing the incidence of and preventable harm from VTE. We developed a rubric for defect-free VTE prevention, graded each organizational VTE quality measure, and found that none of the current VTE-related quality measures adequately characterizes VTE prevention efforts or outcomes in hospitalized patients. Effective VTE prevention is multifactorial: clinicians must assess patients' risk for VTE and prescribe therapy appropriate for each patient's risk profile, patients must accept the prescribed therapy, and nurses must administer the therapy as prescribed. First, an ideal, defect-free VTE prevention process measure requires: (1) documentation of a standardized VTE risk assessment; (2) prescription of optimal, risk-appropriate VTE prophylaxis; and (3) administration of all risk-appropriate VTE prophylaxis as prescribed. Second, an ideal VTE outcome measure should define potentially preventable VTE as VTE that developed in patients who experienced any VTE prevention process failures. © 2018 American Heart Association, Inc.

  3. Lessons learned from a rigorous peer-review process for building the Climate Literacy and Energy Awareness (CLEAN) collection of high-quality digital teaching materials

    Science.gov (United States)

    Gold, A. U.; Ledley, T. S.; McCaffrey, M. S.; Buhr, S. M.; Manduca, C. A.; Niepold, F.; Fox, S.; Howell, C. D.; Lynds, S. E.

    2010-12-01

    The topic of climate change permeates all aspects of our society: the news, household debates, scientific conferences, etc. To provide students with accurate information about climate science and energy awareness, educators require scientifically and pedagogically robust teaching materials. To address this need, the NSF-funded Climate Literacy & Energy Awareness Network (CLEAN) Pathway has assembled a new peer-reviewed digital collection as part of the National Science Digital Library (NSDL) featuring teaching materials centered on climate and energy science for grades 6 through 16. The scope and framework of the collection is defined by the Essential Principles of Climate Science (CCSP 2009) and a set of energy awareness principles developed in the project. The collection provides trustworthy teaching materials on these socially relevant topics and prepares students to become responsible decision-makers. While a peer-review process is desirable for curriculum developer as well as collection builder to ensure quality, its implementation is non-trivial. We have designed a rigorous and transparent peer-review process for the CLEAN collection, and our experiences provide general guidelines that can be used to judge the quality of digital teaching materials across disciplines. Our multi-stage review process ensures that only resources with teaching goals relevant to developing climate literacy and energy awareness are considered. Each relevant resource is reviewed by two individuals to assess the i) scientific accuracy, ii) pedagogic effectiveness, and iii) usability/technical quality. A science review by an expert ensures the scientific quality and accuracy. Resources that pass all review steps are forwarded to a review panel of educators and scientists who make a final decision regarding inclusion of the materials in the CLEAN collection. Results from the first panel review show that about 20% (~100) of the resources that were initially considered for inclusion

  4. Scientific rigor through videogames.

    Science.gov (United States)

    Treuille, Adrien; Das, Rhiju

    2014-11-01

    Hypothesis-driven experimentation - the scientific method - can be subverted by fraud, irreproducibility, and lack of rigorous predictive tests. A robust solution to these problems may be the 'massive open laboratory' model, recently embodied in the internet-scale videogame EteRNA. Deploying similar platforms throughout biology could enforce the scientific method more broadly. Copyright © 2014 Elsevier Ltd. All rights reserved.

  5. Statistical mechanics rigorous results

    CERN Document Server

    Ruelle, David

    1999-01-01

    This classic book marks the beginning of an era of vigorous mathematical progress in equilibrium statistical mechanics. Its treatment of the infinite system limit has not been superseded, and the discussion of thermodynamic functions and states remains basic for more recent work. The conceptual foundation provided by the Rigorous Results remains invaluable for the study of the spectacular developments of statistical mechanics in the second half of the 20th century.

  6. Measurement of laser spot quality

    Science.gov (United States)

    Milster, T. D.; Treptau, J. P.

    1991-01-01

    Several ways of measuring spot quality are compared. We examine in detail various figures of merit such as full width at half maximum (FWHM), full width at 1/(e exp 2) maximum, Strehl ratio, and encircled energy. Our application is optical data storage, but results can be applied to other areas like space communications and high energy lasers. We found that the optimum figure of merit in many cases is Strehl ratio.

  7. High survival rates of Campylobacter coli under different stress conditions suggest that more rigorous food control measures might be needed in Brazil.

    Science.gov (United States)

    Gomes, Carolina N; Passaglia, Jaqueline; Vilela, Felipe P; Pereira da Silva, Fátima M H S; Duque, Sheila S; Falcão, Juliana P

    2018-08-01

    Campylobacter spp. have been the most commonly reported gastrointestinal bacterial pathogen in many countries. Consumption of improperly prepared poultry meat has been the main transmission route of Campylobacter spp. Although Brazil is the largest exporter of poultry meat in the world, campylobacteriosis has been a neglected disease in the country. The aim of this study was to characterize 50 Campylobacter coli strains isolated from different sources in Brazil regarding the frequency of 16 virulence genes and their survival capability under five different stress conditions. All strains studied presented the cadF, flaA, and sodB genes that are considered essential for colonization. All strains grew at 4 °C and 37 °C after 24 h. High survival rates were observed when the strains were incubated in BHI with 7.5% NaCl and exposed to acid and oxidative stress. In conclusion, the pathogenic potential of the strains studied was reinforced by the presence of several important virulence genes and by the high growth and survival rates of the majority of those strains under different stress conditions. The results enabled a better understanding of strains circulating in Brazil and suggest that more rigorous control measures may be needed, given the importance of contaminated food as vehicles for Campylobacter coli. Copyright © 2018 Elsevier Ltd. All rights reserved.

  8. Radiation measurements and quality control

    International Nuclear Information System (INIS)

    McLaughlin, W.L.

    1977-01-01

    Accurate measurements are essential to research leading to a successful radiation process and to the commissioning of the process and the facility. On the other hand, once the process is in production, the importance to quality control of measuring radiation quantities (i.e., absorbed dose, dose rate, dose distribution) rather than various other parameters of the process (i.e. conveyor speed, dwell time, radiation field characteristics, product dimensions) is not clearly established. When the safety of the product is determined by the magnitude of the administered dose, as in radiation sterilization, waste control, or food preservation, accuracy and precision of the measurement of the effective dose are vital. Since physical dose measurements are usually simpler, more reliable and reproducible than biological testing of the product, there is a trend toward using standardized dosimetry for quality control of some processes. In many industrial products, however, such as vulcanized rubber, textiles, plastics, coatings, films, wire and cable, the effective dose can be controlled satisfactorily by controlling process variables or by product testing itself. In the measurement of radiation dose profiles by dosimetry, it is necessary to have suitable dose meter calibrations, to account for sources of error and imprecision, and to use correct statistical procedures in specifying dwell times or conveyor speeds and source and product parameters to achieve minimum and maximum doses within specifications. (author)

  9. Quality assurance in biomarker measurement.

    Science.gov (United States)

    Aitio, A; Apostoli, P

    1995-05-01

    Quality assurance (QA) concerns the validity of all the analytical processes (from collection of the samples to interpretation of the results). It is not an abstract concept but must be adapted to the different situations such as the different exposure levels, the different analytical methods, and the context of use (risk assessment procedures, research, routine determinations). The main requirements in QA programmes regard the control of all the known sources of preanalytical and analytical variations, while the instruments with which adequate QA can be implemented are the certified materials and the quality control programmes (quality manual, internal and external quality controls). Another important concept in QA is that measurements must be placed a different metrological levels: at the highest there are the methods (definitive, reference) to be used for assessing accuracy of routine methods. QA programmes should enable a grading of biomarkers (from experimental only to full evaluated) and of the laboratories in order to identify the significance of the test and to assess the level at which a laboratory could operate.

  10. Experimental evaluation of rigor mortis. V. Effect of various temperatures on the evolution of rigor mortis.

    Science.gov (United States)

    Krompecher, T

    1981-01-01

    Objective measurements were carried out to study the evolution of rigor mortis on rats at various temperatures. Our experiments showed that: (1) at 6 degrees C rigor mortis reaches full development between 48 and 60 hours post mortem, and is resolved at 168 hours post mortem; (2) at 24 degrees C rigor mortis reaches full development at 5 hours post mortem, and is resolved at 16 hours post mortem; (3) at 37 degrees C rigor mortis reaches full development at 3 hours post mortem, and is resolved at 6 hours post mortem; (4) the intensity of rigor mortis grows with increase in temperature (difference between values obtained at 24 degrees C and 37 degrees C); and (5) and 6 degrees C a "cold rigidity" was found, in addition to and independent of rigor mortis.

  11. Quality Assurance In Radioactivity Measurements

    International Nuclear Information System (INIS)

    Riekstina, D.; Veveris, O.; Smilskalne, G.

    2007-01-01

    The credibility of obtained results is ensured by the quality assurance and control. The main requisitions involved in the quality assurance of the laboratory according to the requirements of LVS EN ISO/IEC 17025:2005 are: 1) the use of calibrated equipment only; 2) the regular and long-time use of reference materials in the control of equipment; 3) the estimation of uncertainty sources and determination of uncertainties within the given interval of credibility; 4) the validation and verification. The very important requirement is regular participation in the interlaboratory intercomparison exercises that makes it possible to estimate and find possible error sources and carry out the corrective actions. The measurements of the radioactivity of Cs-137, Co-60, H-3, the natural radioactive nuclides as well as other radionuclides in different environmental (soil, precipitation, different types of water, needles, et al.) samples, and in various radioactive polluted objects are carried out in the Laboratory of Radiation physics. The quality assurance system was implemented in our laboratory in 2000. Since 1999 laboratory is regular participant in the interlaboratory intercomparison exercises, organized by the RISO National Laboratory (Denmark) and IAEA (Vienna). The paper shows the laboratory's system of quality assurance and its implementation. We have the internal quality audit program that takes into account the requirements of LVS EN ISO/IEC 17025: 2005, but the main attention is paid to the intercomparison of the results of analyses of laboratories, their evaluation and interpretation. Only credible and justified results can be the basis for further use in any field, thus making it possible to make legitimate decisions. (Authors)

  12. Development of rigor mortis is not affected by muscle volume.

    Science.gov (United States)

    Kobayashi, M; Ikegaya, H; Takase, I; Hatanaka, K; Sakurada, K; Iwase, H

    2001-04-01

    There is a hypothesis suggesting that rigor mortis progresses more rapidly in small muscles than in large muscles. We measured rigor mortis as tension determined isometrically in rat musculus erector spinae that had been cut into muscle bundles of various volumes. The muscle volume did not influence either the progress or the resolution of rigor mortis, which contradicts the hypothesis. Differences in pre-rigor load on the muscles influenced the onset and resolution of rigor mortis in a few pairs of samples, but did not influence the time taken for rigor mortis to reach its full extent after death. Moreover, the progress of rigor mortis in this muscle was biphasic; this may reflect the early rigor of red muscle fibres and the late rigor of white muscle fibres.

  13. Determining the Measurement Quality of a Montessori High School Teacher Evaluation Survey

    Science.gov (United States)

    Setari, Anthony Philip; Bradley, Kelly D.

    2017-01-01

    The purpose of this study was to conduct a psychometric validation of a course evaluation instrument, known as a student evaluation of teaching (SET), implemented in a Montessori high school. The authors demonstrate to the Montessori community how to rigorously examine the measurement and assessment quality of instruments used within Montessori…

  14. Translating Oral Health-Related Quality of Life Measures: Are There Alternative Methodologies?

    Science.gov (United States)

    Brondani, Mario; He, Sarah

    2013-01-01

    Translating existing sociodental indicators to another language involves a rigorous methodology, which can be costly. Free-of-charge online translator tools are available, but have not been evaluated in the context of research involving quality of life measures. To explore the value of using online translator tools to develop oral health-related…

  15. Achieving Improvement Through Nursing Home Quality Measurement

    OpenAIRE

    Harris, Yael; Clauser, Steven B.

    2002-01-01

    CMS has initiated the Nursing Home Quality Initiative (NHQI) to improve the quality of nursing home care. Central to the NHQI is the public reporting of nursing home quality measures that serve as the basis for the Initiative's communication and quality improvement program. This article provides an overview of the NHQI, focusing on the role of nursing home quality measures in achieving improvements in nursing home care. We also describe the evolution of quality measurement in nursing homes, a...

  16. Measuring effectiveness of food quality management

    NARCIS (Netherlands)

    Spiegel, van der M.

    2004-01-01

    Keywords: effectiveness, food quality management, instrument, quality performance, contextual factors, agri-food production, conceptual model, performance measurement indicators, identification, validation, assessment, quality assurance systems, QA systems, HACCP, Hygiene code, ISO, BRC, GMP, bakery

  17. Hospital Quality Initiative - Outcome Measures

    Data.gov (United States)

    U.S. Department of Health & Human Services — In the interest of promoting high-quality, patient-centered care and accountability, the Centers for Medicare and Medicaid Services (CMS) and Hospital Quality...

  18. Criteria and tools for scientific software quality measurements

    Energy Technology Data Exchange (ETDEWEB)

    Tseng, M Y [Previse Inc., Willowdale ON (Canada)

    1995-12-01

    Not all software used in the nuclear industry needs the rigorous formal verification, reliability testing and quality assessment that are being applied to safety critical software. Recently, however, there is increasing recognition that systematic and objective quality assessment of the scientific software used in design and safety analyses of nuclear facilities is necessary to support safety and licensing decisions. Because of the complexity and large size of these programs and the resource constraints faced by the AECB reviewer, it is desirable that appropriate automated tools are used wherever practical. To objectively assess the quality of software, a set of attributes of a software product by which its quality is described and evaluated must be established. These attributes must be relevant to the application domain of software under evaluation. To effectively assess the quality of software, metrics defining quantitative scale and method appropriate to determine the value of attributes need to be applied. To cost-effectively perform the evaluation, use of suitable automated tools is desirable. In this project, criteria for evaluating the quality of scientific software are presented; metrics for which those criteria can be evaluated are identified; a survey of automated tools to measure those metrics was conducted and the most appropriate tool (QA Fortran) was acquired; and the tool usage was demonstrated on three sample programs. (author) 5 refs.

  19. Criteria and tools for scientific software quality measurements

    International Nuclear Information System (INIS)

    Tseng, M.Y.

    1995-12-01

    Not all software used in the nuclear industry needs the rigorous formal verification, reliability testing and quality assessment that are being applied to safety critical software. Recently, however, there is increasing recognition that systematic and objective quality assessment of the scientific software used in design and safety analyses of nuclear facilities is necessary to support safety and licensing decisions. Because of the complexity and large size of these programs and the resource constraints faced by the AECB reviewer, it is desirable that appropriate automated tools are used wherever practical. To objectively assess the quality of software, a set of attributes of a software product by which its quality is described and evaluated must be established. These attributes must be relevant to the application domain of software under evaluation. To effectively assess the quality of software, metrics defining quantitative scale and method appropriate to determine the value of attributes need to be applied. To cost-effectively perform the evaluation, use of suitable automated tools is desirable. In this project, criteria for evaluating the quality of scientific software are presented; metrics for which those criteria can be evaluated are identified; a survey of automated tools to measure those metrics was conducted and the most appropriate tool (QA Fortran) was acquired; and the tool usage was demonstrated on three sample programs. (author) 5 refs

  20. Scattering parameters of the 3.9 GHz accelerating module in a free-electron laser linac: A rigorous comparison between simulations and measurements

    Directory of Open Access Journals (Sweden)

    Thomas Flisgen

    2014-02-01

    Full Text Available This article presents a comparison between measured and simulated scattering parameters in a wide frequency interval for the third harmonic accelerating module ACC39 in the linear accelerator FLASH, located at DESY in Hamburg/Germany. ACC39 is a cryomodule housing four superconducting 3.9  GHz accelerating cavities. Due to the special shape of the cavities (in particular its end cells and the beam pipes in ACC39, the electromagnetic field in the module is, in many frequency ranges, coupled from one cavity to the next. Therefore, the scattering parameters are determined by the entire string and not solely by the individual cavities. This makes the determination of the scattering properties demanding. As far as the authors can determine, this paper shows for the first time a direct comparison between state-of-the-art simulations and measurements of rf properties of long, complex, and asymmetric structures over a wide frequency band. Taking into account the complexity of the system and various geometrical unknowns, the agreement between experimental measurements and simulations is remarkably good for several distinct measurements, although a variety of effects (e.g. cavity deviations from the ideal shape or interactions with not modeled parts of the structure is not considered in the computer simulation. After a short introduction, the paper provides detailed descriptions of simulations and experimental measurements performed at the module. In this context, the estimation of the cable properties is discussed as well. As a central part of the article, the comparison between measured and simulated transmission spectra and quality factors is presented. This study represents one of the first detailed comparisons between simulations and measurements for a coupled accelerator cavity system.

  1. Challenges of measuring quality in emergency management

    DEFF Research Database (Denmark)

    Lynette, Jennifer Elyse

    2016-01-01

    This paper describes the challenges and importance of measuring quality within the field of emergency response. Using quality as a standard of measurement to evaluate response efforts of trained personnel in emergency situations is necessary to increase effectiveness in the response phase...... of an emergency event. The intended outcome of utilizing quality as a tool of measurement is to save additional lives, property, and resources. The adoption of a system to measure quality can be utilized by multiple professions under the broader field of emergency response services. Quality is discussed in terms...

  2. Quality assurance handbook for measurement laboratories

    International Nuclear Information System (INIS)

    Delvin, W.L.

    1984-10-01

    This handbook provides guidance in the application of quality assurance to measurement activities. It is intended to help those persons making measurements in applying quality assurance to their work activities by showing how laboratory practices and quality assurance requirements are integrated to provide control within those activities. The use of the guidance found in this handbook should help provide consistency in the interpretation of quality assurance requirements across all types of measurement laboratories. This handbook also can assist quality assurance personnel in understanding the relationships between laboratory practices and quality assurance requirements. The handbook is composed of three chapters and several appendices. Basic guidance is provided by the three chapters. In Chapter 1, the role of quality assurance in obtaining quality data and the importance of such data are discussed. Chapter 2 presents the elements of laboratory quality assurance in terms of practices that can be used in controlling work activities to assure the acquisition of quality data. Chapter 3 discusses the implementation of laboratory quality assurance. The appendices provide supplemental information to give the users a better understanding of the following: what is quality assurance; why quality assurance is required; where quality assurance requirements come from; how those requirements are interpreted for application to laboratory operations; how the elements of laboratory quality assurance relate to various laboratory activities; and how a quality assurance program can be developed

  3. [Rigor mortis -- a definite sign of death?].

    Science.gov (United States)

    Heller, A R; Müller, M P; Frank, M D; Dressler, J

    2005-04-01

    In the past years an ongoing controversial debate exists in Germany, regarding quality of the coroner's inquest and declaration of death by physicians. We report the case of a 90-year old female, who was found after an unknown time following a suicide attempt with benzodiazepine. The examination of the patient showed livores (mortis?) on the left forearm and left lower leg. Moreover, rigor (mortis?) of the left arm was apparent which prevented arm flexion and extension. The hypothermic patient with insufficient respiration was intubated and mechanically ventilated. Chest compressions were not performed, because central pulses were (hardly) palpable and a sinus bradycardia 45/min (AV-block 2 degrees and sole premature ventricular complexes) was present. After placement of an intravenous line (17 G, external jugular vein) the hemodynamic situation was stabilized with intermittent boli of epinephrine and with sodium bicarbonate. With improved circulation livores and rigor disappeared. In the present case a minimal central circulation was noted, which could be stabilized, despite the presence of certain signs of death ( livores and rigor mortis). Considering the finding of an abrogated peripheral perfusion (livores), we postulate a centripetal collapse of glycogen and ATP supply in the patients left arm (rigor), which was restored after resuscitation and reperfusion. Thus, it appears that livores and rigor are not sensitive enough to exclude a vita minima, in particular in hypothermic patients with intoxications. Consequently a careful ABC-check should be performed even in the presence of apparently certain signs of death, to avoid underdiagnosing a vita minima. Additional ECG- monitoring is required to reduce the rate of false positive declarations of death. To what extent basic life support by paramedics should commence when rigor and livores are present until physician DNR order, deserves further discussion.

  4. Quality control of gamma radiation measuring systems

    International Nuclear Information System (INIS)

    Surma, M.J.

    2002-01-01

    The problem of quality control and assurance of gamma radiation measuring systems has been described in detail. The factors deciding of high quality of radiometric measurements as well as statistical testing and calibration of measuring systems have been presented and discussed

  5. Measuring earnings quality: Evidence from New Zealand

    Directory of Open Access Journals (Sweden)

    Muhammad Nurul Houqe

    2011-01-01

    Full Text Available We utilize two basic approaches to measure the quality of earnings which control two different dimensions of earnings management. The research design is structured primary on the basis of calculating two different measures of the quality of earnings on the industry level and on the company level. We calculate earnings quality for New Zealand public firms from the OSIRIS (http://www.osiris.com database for 2004-2007. This research concludes that various stakeholders should apply more than one measure for the quality of earning in order to have strong evidence about the level of quality before taking any corrective action or making any decision related to that company. If one company is having low quality of earning according to one technique and high quality of earnings according to another, the stakeholders cannot have a final conclusion about that company and they need more investigations and analysis to assess the quality of earnings

  6. Measuring healthcare quality: the challenges

    NARCIS (Netherlands)

    van den Heuvel, J.; Niemeijer, G.C.; Does, R.J.M.M.

    2013-01-01

    Purpose - Current health care quality performance indicators appear to be inadequate to inform the public to make the right choices. The aim of this paper is to define a framework and an organizational setting in which valid and reliable healthcare information can be produced to inform the general

  7. [Experimental study of restiffening of the rigor mortis].

    Science.gov (United States)

    Wang, X; Li, M; Liao, Z G; Yi, X F; Peng, X M

    2001-11-01

    To observe changes of the length of sarcomere of rat when restiffening. We measured the length of sarcomere of quadriceps in 40 rats in different condition by scanning electron microscope. The length of sarcomere of rigor mortis without destroy is obviously shorter than that of restiffening. The length of sarcomere is negatively correlative to the intensity of rigor mortis. Measuring the length of sarcomere can determine the intensity of rigor mortis and provide evidence for estimation of time since death.

  8. The Development of a Service-Learning Program for First-Year Students Based on the Hallmarks of High Quality Service-Learning and Rigorous Program Evaluation

    Science.gov (United States)

    Smith, Bradley H.; Gahagan, James; McQuillin, Samuel; Haywood, Benjamin; Cole, Caroline Pender; Bolton, Clay; Wampler, Mary Katherine

    2011-01-01

    We describe six hallmarks of high quality service-learning and explain how these considerations guided the development of a Transitional Coaching Program (TCP) during the first three years of implementation. We have demonstrated that the TCP is acceptable, feasible, and sustainable. Improvements have been seen in the degree of impact on learning…

  9. Computer controlled quality of analytical measurements

    International Nuclear Information System (INIS)

    Clark, J.P.; Huff, G.A.

    1979-01-01

    A PDP 11/35 computer system is used in evaluating analytical chemistry measurements quality control data at the Barnwell Nuclear Fuel Plant. This computerized measurement quality control system has several features which are not available in manual systems, such as real-time measurement control, computer calculated bias corrections and standard deviation estimates, surveillance applications, evaluaton of measurement system variables, records storage, immediate analyst recertificaton, and the elimination of routine analysis of known bench standards. The effectiveness of the Barnwell computer system has been demonstrated in gathering and assimilating the measurements of over 1100 quality control samples obtained during a recent plant demonstration run. These data were used to determine equaitons for predicting measurement reliability estimates (bias and precision); to evaluate the measurement system; and to provide direction for modification of chemistry methods. The analytical chemistry measurement quality control activities represented 10% of the total analytical chemistry effort

  10. Achieving software quality by GQM measurement

    NARCIS (Netherlands)

    Solingen, van D.M.; Veenendaal, van E.P.W.M.; Veenendaal, van E.P.W.M.; McMullan, J.

    1997-01-01

    Software development is a discipline with specific management difficulties. Collecting relevant data during development is a way to overcome these difficulties. Such data collection for sqftware development is termed "Software Measurement". Software measurement is a powerful aid to quality

  11. History and background of quality measurement.

    Science.gov (United States)

    Chun, Jonathan; Bafford, Andrea Chao

    2014-03-01

    Health care quality measurement has become increasingly emphasized, as providers and administrators respond to public and government demands for improved patient care. This article will review the evolution of surgical quality measurement and improvement from its infancy in the 1850s to the vast efforts being undertaken today.

  12. Availability of high quality weather data measurements

    DEFF Research Database (Denmark)

    Andersen, Elsa; Johansen, Jakob Berg; Furbo, Simon

    In the period 2016-2017 the project “Availability of high quality weather data measurements” is carried out at Department of Civil Engineering at the Technical University of Denmark. The aim of the project is to establish measured high quality weather data which will be easily available...... for the building energy branch and the solar energy branch in their efforts to achieve energy savings and for researchers and students carrying out projects where measured high quality weather data are needed....

  13. Putrefactive rigor: apparent rigor mortis due to gas distension.

    Science.gov (United States)

    Gill, James R; Landi, Kristen

    2011-09-01

    Artifacts due to decomposition may cause confusion for the initial death investigator, leading to an incorrect suspicion of foul play. Putrefaction is a microorganism-driven process that results in foul odor, skin discoloration, purge, and bloating. Various decompositional gases including methane, hydrogen sulfide, carbon dioxide, and hydrogen will cause the body to bloat. We describe 3 instances of putrefactive gas distension (bloating) that produced the appearance of inappropriate rigor, so-called putrefactive rigor. These gases may distend the body to an extent that the extremities extend and lose contact with their underlying support surface. The medicolegal investigator must recognize that this is not true rigor mortis and the body was not necessarily moved after death for this gravity-defying position to occur.

  14. Candidate Quality Measures for Hand Surgery.

    Science.gov (United States)

    2017-11-01

    Quality measures are tools used by physicians, health care systems, and payers to evaluate performance, monitor the outcomes of interventions, and inform quality improvement efforts. A paucity of quality measures exist that address hand surgery care. We completed a RAND/UCLA (University of California Los Angeles) Delphi Appropriateness process with the goal of developing and evaluating candidate hand surgery quality measures to be used for national quality measure development efforts. A consortium of 9 academic upper limb surgeons completed a RAND/UCLA Delphi Appropriateness process to evaluate the importance, scientific acceptability, usability, and feasibility of 44 candidate quality measures. These addressed hand problems the panelists felt were most appropriate for quality measure development. Panelists rated the measures on an ordinal scale between 1 (definitely not valid) and 9 (definitely valid) in 2 rounds (preliminary round and final round) with an intervening face-to-face discussion. Ratings from 1 to 3 were considered not valid, 4 to 6 as equivocal or uncertain, and 7 to 9 as valid. If no more than 2 of the 9 ratings were outside the 3-point range that included the median (1-3, 4-6, or 7-9), the panelists were considered to be in agreement. If 3 or more of the panelists' ratings of a measure were within the 1 to 3 range and 3 or more ratings were in the 7 to 9 range, the panelists were considered to be in disagreement. There was agreement on 43% (19) of the measures as important, 27% (12) as scientifically sound, 48% (21) as usable, and 59% (26) as feasible to complete. Ten measures met all 4 of these criteria and were, therefore, considered valid measurements of quality. Quality measures that were developed address outcomes (patient-reported outcomes for assessment and improvement of function) and processes of care (utilization rates of imaging, antibiotics, occupational therapy, ultrasound, and operative treatment). The consortium developed 10

  15. Earnings Quality Measures and Excess Returns.

    Science.gov (United States)

    Perotti, Pietro; Wagenhofer, Alfred

    2014-06-01

    This paper examines how commonly used earnings quality measures fulfill a key objective of financial reporting, i.e., improving decision usefulness for investors. We propose a stock-price-based measure for assessing the quality of earnings quality measures. We predict that firms with higher earnings quality will be less mispriced than other firms. Mispricing is measured by the difference of the mean absolute excess returns of portfolios formed on high and low values of a measure. We examine persistence, predictability, two measures of smoothness, abnormal accruals, accruals quality, earnings response coefficient and value relevance. For a large sample of US non-financial firms over the period 1988-2007, we show that all measures except for smoothness are negatively associated with absolute excess returns, suggesting that smoothness is generally a favorable attribute of earnings. Accruals measures generate the largest spread in absolute excess returns, followed by smoothness and market-based measures. These results lend support to the widespread use of accruals measures as overall measures of earnings quality in the literature.

  16. Quality measures for nurse practitioner practice evaluation.

    Science.gov (United States)

    Kleinpell, Ruth; Kapu, April N

    2017-08-01

    Evaluating the impact of nurse practitioner (NP) practice has become a priority area of focus for demonstrating outcomes. A number of quality measures are available to enable practice-specific evaluation of NP roles and initiatives. This article reviews sources of quality measures that can be used to facilitate quantifying the outcomes of NP practice as part of an overall evaluation agenda. National resources and published literature on NP quality measures were reviewed. Various resources and toolkits exist to assist NPs in identifying outcomes of practice using quality measures. The need to demonstrate outcomes of NP practice remains an ongoing priority area regardless of the clinical practice setting. A variety of sources of quality measures exist that can be used to showcase the effect of NP care. The use of quality measures can be effectively integrated into evaluation of NP role and NP-directed initiatives to demonstrate impact, and enhance the conduct of an NP outcomes assessment. The use of organizational, NP-specific, and national-related quality measures can help to showcase how NP care improves the quality, safety, and costs of health care. ©2017 American Association of Nurse Practitioners.

  17. Quality assurance in radiation measurement

    International Nuclear Information System (INIS)

    Noriah Mod Ali

    2002-01-01

    The achievement of traceability to recognize measurement standards for ionizing radiation posses special requirements. Methods of transferring reference standard to the working situation are devised through calibration and appropriate traceability, which optimize the accuracy attainable with the method of dose determination in routine use. Appropriate procedures are developed by the SSDL-MINT to establish accurate dose measurement in wide range of radiation fields such as in medicine, agriculture and industrial application. The status of work including effort towards ISO 9000 certification of SSDL dosimetry services will be summarized. (Author)

  18. Video Measurements: Quantity or Quality

    Science.gov (United States)

    Zajkov, Oliver; Mitrevski, Boce

    2012-01-01

    Students have problems with understanding, using and interpreting graphs. In order to improve the students' skills for working with graphs, we propose Manual Video Measurement (MVM). In this paper, the MVM method is explained and its accuracy is tested. The comparison with the standardized video data software shows that its accuracy is comparable…

  19. [Quality measurement using administrative data in mandatory quality assurance].

    Science.gov (United States)

    Heller, Günther; Szecsenyi, Joachim; Willms, Gerald; Broge, Björn

    2014-01-01

    For several years, the use of administrative data in mandatory quality measurement has been requested by several stakeholders in Germany. Main advantages of using administrative data include the reduction of documentary expenditures and the possibility to perform longitudinal quality analyses across different healthcare units. After a short introduction, a brief overview of the current use of administrative data for mandatory quality assurance as well as current developments is given, which will then be further exemplified by decubital ulcer prophylaxis. By using administrative data coding expenditures in this clinical area could be reduced by nine million data fields. At the same time the population analysed was expanded resulting in a more than tenfold increase in potentially quality-relevant events. Finally, perspectives, further developments, possibilities as well as limits of quality measurement with administrative data are discussed. Copyright © 2014. Published by Elsevier GmbH.

  20. Need for quality dose measurements

    International Nuclear Information System (INIS)

    Forbes, J.L.

    1985-01-01

    Work procedures based upon dependable measurements have unquestionably reduced past exposures to a level that will produce few injuries in later years. Of the many legal issues that might be discussed with regard to instrument calibration, the two of present concern are the determination of cause, and the evidence (including expert testimony) submitted to that end. Although they are termed here legal issues, they are in fact highly technical problems which have recently become political footballs. Some background is discussed in order to understand how such legal/technical/political considerations are related to instrument calibration, the subject of this workshop

  1. Quality improvement in neurology: AAN Parkinson disease quality measures

    Science.gov (United States)

    Cheng, E.M.; Tonn, S.; Swain-Eng, R.; Factor, S.A.; Weiner, W.J.; Bever, C.T.

    2010-01-01

    Background: Measuring the quality of health care is a fundamental step toward improving health care and is increasingly used in pay-for-performance initiatives and maintenance of certification requirements. Measure development to date has focused on primary care and common conditions such as diabetes; thus, the number of measures that apply to neurologic care is limited. The American Academy of Neurology (AAN) identified the need for neurologists to develop measures of neurologic care and to establish a process to accomplish this. Objective: To adapt and test the feasibility of a process for independent development by the AAN of measures for neurologic conditions for national measurement programs. Methods: A process that has been used nationally for measure development was adapted for use by the AAN. Topics for measure development are chosen based upon national priorities, available evidence base from a systematic literature search, gaps in care, and the potential impact for quality improvement. A panel composed of subject matter and measure development methodology experts oversees the development of the measures. Recommendation statements and their corresponding level of evidence are reviewed and considered for development into draft candidate measures. The candidate measures are refined by the expert panel during a 30-day public comment period and by review by the American Medical Association for Current Procedural Terminology (CPT) II codes. All final AAN measures are approved by the AAN Board of Directors. Results: Parkinson disease (PD) was chosen for measure development. A review of the medical literature identified 258 relevant recommendation statements. A 28-member panel approved 10 quality measures for PD that included full specifications and CPT II codes. Conclusion: The AAN has adapted a measure development process that is suitable for national measurement programs and has demonstrated its capability to independently develop quality measures. GLOSSARY

  2. Mathematical Rigor in Introductory Physics

    Science.gov (United States)

    Vandyke, Michael; Bassichis, William

    2011-10-01

    Calculus-based introductory physics courses intended for future engineers and physicists are often designed and taught in the same fashion as those intended for students of other disciplines. A more mathematically rigorous curriculum should be more appropriate and, ultimately, more beneficial for the student in his or her future coursework. This work investigates the effects of mathematical rigor on student understanding of introductory mechanics. Using a series of diagnostic tools in conjunction with individual student course performance, a statistical analysis will be performed to examine student learning of introductory mechanics and its relation to student understanding of the underlying calculus.

  3. Quality measurement and improvement in liver transplantation.

    Science.gov (United States)

    Mathur, Amit K; Talwalkar, Jayant

    2018-06-01

    There is growing interest in the quality of health care delivery in liver transplantation. Multiple stakeholders, including patients, transplant providers and their hospitals, payers, and regulatory bodies have an interest in measuring and monitoring quality in the liver transplant process, and understanding differences in quality across centres. This article aims to provide an overview of quality measurement and regulatory issues in liver transplantation performed within the United States. We review how broader definitions of health care quality should be applied to liver transplant care models. We outline the status quo including the current regulatory agencies, public reporting mechanisms, and requirements around quality assurance and performance improvement (QAPI) activities. Additionally, we further discuss unintended consequences and opportunities for growth in quality measurement. Quality measurement and the integration of quality improvement strategies into liver transplant programmes hold significant promise, but multiple challenges to successful implementation must be addressed to optimise value. Copyright © 2018 European Association for the Study of the Liver. Published by Elsevier B.V. All rights reserved.

  4. Measuring effectiveness of food quality management

    OpenAIRE

    Spiegel, van der, M.

    2004-01-01

    Keywords: effectiveness, food quality management, instrument, quality performance, contextual factors, agri-food production, conceptual model, performance measurement indicators, identification, validation, assessment, quality assurance systems, QA systems, HACCP, Hygiene code, ISO, BRC, GMP, bakery sector.In the last decade several incidents have occurred in the agri-food sector, such as the affairs of dioxin and BSE, whereas also the incidence of food-borne diseases and the production of hi...

  5. A Linear Algebra Measure of Cluster Quality.

    Science.gov (United States)

    Mather, Laura A.

    2000-01-01

    Discussion of models for information retrieval focuses on an application of linear algebra to text clustering, namely, a metric for measuring cluster quality based on the theory that cluster quality is proportional to the number of terms that are disjoint across the clusters. Explains term-document matrices and clustering algorithms. (Author/LRW)

  6. Measuring Service Quality in a Tertiary Institution.

    Science.gov (United States)

    Soutar, Geoffrey; McNeil, Margaret

    1996-01-01

    Measures service quality from the viewpoint of customers (students at an Australian university), using the SERVQUAL model. Obtains evaluations of academic and administrative aspects of the educational service. Makes significant negative evaluations of administrative service quality (resulting from communication problems). Satisfaction with the…

  7. External quality measurements reveal internal processes

    NARCIS (Netherlands)

    Schouten, R.E.; Costa, J.M.; Kooten, van O.

    2003-01-01

    With the present developments in CA technology it becomes possible to fine tune the storage conditions to the specific needs of the product. This generates the need to know the exact quality conditions of the product before storage starts. By measuring the initial quality we can determine these

  8. Business Process Modelling for Measuring Quality

    NARCIS (Netherlands)

    Heidari, F.; Loucopoulos, P.; Brazier, F.M.

    2013-01-01

    Business process modelling languages facilitate presentation, communication and analysis of business processes with different stakeholders. This paper proposes an approach that drives specification and measurement of quality requirements and in doing so relies on business process models as

  9. Transport services quality measurment using SERVQUAL model

    Directory of Open Access Journals (Sweden)

    Maksimović Mlađan V.

    2017-01-01

    Full Text Available Quality in the world is considered to be the most important phenomenon of our age, with a permanent and irreversible growing trend of its emphasis. Many companies have come to the conclusion that high quality of services can provide them with a potential competitive advantage, leading to superior sales results and profit making. The aim of this paper is to test the applicability of service SERVQUAL dimensions and measure the quality of services in the public transport of passengers. Based on the data obtained by researching the views of public transport users in Kragujevac using the SERVQUAL methodology and statistical analysis based on defined service quality dimensions, this research will show the level of quality of urban transport services in Kragujevac and based on this, make recommendations for improving the quality of service.

  10. [Comparative quality measurements part 3: funnel plots].

    Science.gov (United States)

    Kottner, Jan; Lahmann, Nils

    2014-02-01

    Comparative quality measurements between organisations or institutions are common. Quality measures need to be standardised and risk adjusted. Random error must also be taken adequately into account. Rankings without consideration of the precision lead to flawed interpretations and enhances "gaming". Application of confidence intervals is one possibility to take chance variation into account. Funnel plots are modified control charts based on Statistical Process Control (SPC) theory. The quality measures are plotted against their sample size. Warning and control limits that are 2 or 3 standard deviations from the center line are added. With increasing group size the precision increases and so the control limits are forming a funnel. Data points within the control limits are considered to show common cause variation; data points outside special cause variation without the focus of spurious rankings. Funnel plots offer data based information about how to evaluate institutional performance within quality management contexts.

  11. Adopting software quality measures for healthcare processes.

    Science.gov (United States)

    Yildiz, Ozkan; Demirörs, Onur

    2009-01-01

    In this study, we investigated the adoptability of software quality measures for healthcare process measurement. Quality measures of ISO/IEC 9126 are redefined from a process perspective to build a generic healthcare process quality measurement model. Case study research method is used, and the model is applied to a public hospital's Entry to Care process. After the application, weak and strong aspects of the process can be easily observed. Access audibility, fault removal, completeness of documentation, and machine utilization are weak aspects and these aspects are the candidates for process improvement. On the other hand, functional completeness, fault ratio, input validity checking, response time, and throughput time are the strong aspects of the process.

  12. A case of instantaneous rigor?

    Science.gov (United States)

    Pirch, J; Schulz, Y; Klintschar, M

    2013-09-01

    The question of whether instantaneous rigor mortis (IR), the hypothetic sudden occurrence of stiffening of the muscles upon death, actually exists has been controversially debated over the last 150 years. While modern German forensic literature rejects this concept, the contemporary British literature is more willing to embrace it. We present the case of a young woman who suffered from diabetes and who was found dead in an upright standing position with back and shoulders leaned against a punchbag and a cupboard. Rigor mortis was fully established, livor mortis was strong and according to the position the body was found in. After autopsy and toxicological analysis, it was stated that death most probably occurred due to a ketoacidotic coma with markedly increased values of glucose and lactate in the cerebrospinal fluid as well as acetone in blood and urine. Whereas the position of the body is most unusual, a detailed analysis revealed that it is a stable position even without rigor mortis. Therefore, this case does not further support the controversial concept of IR.

  13. Quality Assurance and Quality Control in TLD Measurement

    International Nuclear Information System (INIS)

    Bhuiyan, S.I.; Qronfla, M.M.; Abulfaraj, W.H.; Kinsara, A.A.; Taha, T.M.; Molla, N.I.; Elmohr, S.M.

    2008-01-01

    TLD technique characterized by high precision and reproducibility of dose measurement is presented by addressing pre-readout annealing, group sorting, dose evaluation, blind tests, internal dose quality audit and external quality control audits. Two hundred and forty TLD chips were annealed for 1 hour at 4000 degree C followed by 2 h at 1000 degree C. After exposure of 1 mGy from 90 Sr irradiator TLDs were subjected to pre-readout annealing at 1000 degree C, then readout, sorted into groups each with nearly equal sensitivity. Upon repeating the procedures, TLDs having response >3.5% from group mean were dropped to assuring group stability. Effect of pre-readout annealing has been studied. Series of repeated measurements were conducted to stabilize calibration procedures and DCF generation using SSDL level 137 Cs calibrator, dose master, ionization chambers. Performed internal dose quality audits, blind tests and validated by external QC tests with King Abdulaziz City of Science and Technology

  14. Technological measures to improve automotive product quality

    OpenAIRE

    Gladkov, V.; Kruglov, S.

    2010-01-01

    The paper examines the basic technological measures aimed at improving product quality in automotive industry. While paying due attention to solving organizational and technological problems, including the development of certification systems for production processes, it is also necessary to improve the technical standards of specific technologies, equipment and materials as they largely determine product quality. Special emphasis is given to the importance of improving the production of auto...

  15. Transmission Quality Measurements in DAB+ Broadcast System

    Directory of Open Access Journals (Sweden)

    Gilski Przemysław

    2017-12-01

    Full Text Available In the age of digital media, delivering broadcast content to customers at an acceptable level of quality is one of the most challenging tasks. The most important factor is the efficient use of available resources, including bandwidth. An appropriate way of managing the digital multiplex is essential for both the economic and technical issues. In this paper we describe transmission quality measurements in the DAB+ broadcast system. We provide a methodology for analysing parameters and factors related with the efficiency and reliability of a digital radio link. We describe a laboratory stand that can be used for transmission quality assessment on a regional and national level.

  16. Quality assurance measures in interventional radiology

    International Nuclear Information System (INIS)

    Heuser, L.

    1999-01-01

    The quality assurance of treatment measures is legally required but as yet not generally established in practice. For interventional radiology, the introduction of quality assurance for PTA of arteries of the lower limbs is planned for January 1999. It is reasonable to subject at least the most important and/or most frequently performed interventions to quality management. In the present article, the term quality in the management of diseases is defined and the system of total quality management discussed at the levels structure, process, and results. For its application, parameters of quality measurement in the form of standards, criteria, and characteristic values are necessary and must be laid down by a team of experts on the basis of subjective experience and/or results in the literature. Practical quality assurance takes place not only within a clinic but also externally by comparison with other centers. Data collection and evaluation requires high-performance software that will be continuously improved, expanded, and adapted to current needs during regular meetings between the various users. (orig.) [de

  17. Experimental evaluation of rigor mortis. VI. Effect of various causes of death on the evolution of rigor mortis.

    Science.gov (United States)

    Krompecher, T; Bergerioux, C; Brandt-Casadevall, C; Gujer, H R

    1983-07-01

    The evolution of rigor mortis was studied in cases of nitrogen asphyxia, drowning and strangulation, as well as in fatal intoxications due to strychnine, carbon monoxide and curariform drugs, using a modified method of measurement. Our experiments demonstrated that: (1) Strychnine intoxication hastens the onset and passing of rigor mortis. (2) CO intoxication delays the resolution of rigor mortis. (3) The intensity of rigor may vary depending upon the cause of death. (4) If the stage of rigidity is to be used to estimate the time of death, it is necessary: (a) to perform a succession of objective measurements of rigor mortis intensity; and (b) to verify the eventual presence of factors that could play a role in the modification of its development.

  18. Quality assurance in field radiation measurements

    International Nuclear Information System (INIS)

    Howell, W.P.

    1985-01-01

    In most cases, an ion chamber radiation measuring instrument is calibrated in a uniform gamma radiation field. This results in a uniform ionization field throughout the ion chamber. Measurement conditions encountered in the field often produce non-uniform ionization fields within the ion chamber, making determination of true dose rates to personnel difficult and prone to error. Extensive studies performed at Hanford have provided appropriate correction factors for use with one type of ion chamber instrument, the CP. Suitable corrections are available for the following distinct measurement circumstances: (1) contact measurements on large beta and gamma sources, (2) contact measurements on small beta and gamma sources, (3) contact measurements on small-diameter cylinders, (4) measurements in small gamma beams, and (5) measurements at a distance from large beta sources. Recommendations are made for the implementation of these correction factors, in the interest of improved quality assurance in field radiation measurements. 12 references, 10 figures

  19. Quality Management of Measurements incl. Documentation

    DEFF Research Database (Denmark)

    Tosello, Guido; De Chiffre, Leonardo

    2004-01-01

    -Nürnberg, Chair for Quality Management and Manufacturing-Oriented Metrology (Germany). 'Metro-E-Learn' project proposes to develop and implement a coherent learning and competence chain that leads from introductory and foundation e-courses in initial manufacturing engineering studies towards higher....... Machine tool testing 9. The role of manufacturing metrology for QM 10. Inspection planning 11. Quality management of measurements incl. Documentation 12. Advanced manufacturing measurement technology The present report (which represents the section 11 - Quality management of measurements incl....... Documentation – of the e-learning system) is part of the contribution of the Department for Manufacturing Engineering and Management (IPL) / Centre for Geometrical Metrology (CGM) at the Technical University of Denmark to the MINERVA EU project mentioned above....

  20. Measures of Quality in Business Process Modelling

    Directory of Open Access Journals (Sweden)

    Radek Hronza

    2015-06-01

    Full Text Available Business process modelling and analysing is undoubtedly one of the most important parts of Applied (Business Informatics. Quality of business process models (diagrams is crucial for any purpose in this area. The goal of a process analyst’s work is to create generally understandable, explicit and error free models. If a process is properly described, created models can be used as an input into deep analysis and optimization. It can be assumed that properly designed business process models (similarly as in the case of correctly written algorithms contain characteristics that can be mathematically described. Besides it will be possible to create a tool that will help process analysts to design proper models. As part of this review will be conducted systematic literature review in order to find and analyse business process model’s design and business process model’s quality measures. It was found that mentioned area had already been the subject of research investigation in the past. Thirty-three suitable scietific publications and twenty-two quality measures were found. Analysed scientific publications and existing quality measures do not reflect all important attributes of business process model’s clarity, simplicity and completeness. Therefore it would be appropriate to add new measures of quality.

  1. Accelerating Biomedical Discoveries through Rigor and Transparency.

    Science.gov (United States)

    Hewitt, Judith A; Brown, Liliana L; Murphy, Stephanie J; Grieder, Franziska; Silberberg, Shai D

    2017-07-01

    Difficulties in reproducing published research findings have garnered a lot of press in recent years. As a funder of biomedical research, the National Institutes of Health (NIH) has taken measures to address underlying causes of low reproducibility. Extensive deliberations resulted in a policy, released in 2015, to enhance reproducibility through rigor and transparency. We briefly explain what led to the policy, describe its elements, provide examples and resources for the biomedical research community, and discuss the potential impact of the policy on translatability with a focus on research using animal models. Importantly, while increased attention to rigor and transparency may lead to an increase in the number of laboratory animals used in the near term, it will lead to more efficient and productive use of such resources in the long run. The translational value of animal studies will be improved through more rigorous assessment of experimental variables and data, leading to better assessments of the translational potential of animal models, for the benefit of the research community and society. Published by Oxford University Press on behalf of the Institute for Laboratory Animal Research 2017. This work is written by (a) US Government employee(s) and is in the public domain in the US.

  2. Scattering parameters of the 3.9 GHz accelerating module in a free-electron laser linac: A rigorous comparison between simulations and measurements

    CERN Document Server

    Flisgen, T; Zhang, P; Shinton, I R R; Baboi, N; Jones, R M; van Rienen, U

    2014-01-01

    This article presents a comparison between measured and simulated scattering parameters in a wide frequency interval for the third harmonic accelerating module ACC39 in the linear accelerator FLASH, located at DESY in Hamburg/Germany. ACC39 is a cryomodule housing four superconducting 3.9  GHz accelerating cavities. Due to the special shape of the cavities (in particular its end cells and the beam pipes) in ACC39, the electromagnetic field in the module is, in many frequency ranges, coupled from one cavity to the next. Therefore, the scattering parameters are determined by the entire string and not solely by the individual cavities. This makes the determination of the scattering properties demanding. As far as the authors can determine, this paper shows for the first time a direct comparison between state-of-the-art simulations and measurements of rf properties of long, complex, and asymmetric structures over a wide frequency band. Taking into account the complexity of the system and various geometrical unk...

  3. Quality measures in applications of image restoration.

    Science.gov (United States)

    Kriete, A; Naim, M; Schafer, L

    2001-01-01

    We describe a new method for the estimation of image quality in image restoration applications. We demonstrate this technique on a simulated data set of fluorescent beads, in comparison with restoration by three different deconvolution methods. Both the number of iterations and a regularisation factor are varied to enforce changes in the resulting image quality. First, the data sets are directly compared by an accuracy measure. These values serve to validate the image quality descriptor, which is developed on the basis of optical information theory. This most general measure takes into account the spectral energies and the noise, weighted in a logarithmic fashion. It is demonstrated that this method is particularly helpful as a user-oriented method to control the output of iterative image restorations and to eliminate the guesswork in choosing a suitable number of iterations.

  4. Air quality measurements for site characterization

    International Nuclear Information System (INIS)

    Carter, M.W.; Conklin, W.C.

    1982-01-01

    Effective and timely site characterization is an important part of selecting a site for low-level waste disposal. Parameters measured can be compared with pertinent regulatory requirements, used for a reference base, helpful in evaluating environmental impacts, utilized in documenting changes in control programs, of value in modeling studies and other data uses, and beneficial in providing relevant sampling and methodology training. This paper will focus on specific air quality measurements which should be an inherent part of the site characterization program. The program is designed to measure, quantify, and identify contributions from site uses (operational procedures), atmospheric fallout, natural radioactivity, and vicinity and regional applications of radionuclides. The recommended air quality measurements program will be described in association with a reference site developd by the US Nuclear Regulatory Commission. Particular attention will be devoted to the type and quality of information which is needed, the scope of sampling and measurements, the frequency of measurements, locations and numbers of sampling stations, the period of time needed for site characterization, and the proper uses of the information once it has been obtained. Adequate characterization of the site will be most important in final site selection and in the operation of the site as to periodically assessing environmental impacts and helping guide any remedial control efforts designed to meet regulatory requirements

  5. Many quality measurements, but few quality measures assessing the quality of breast cancer care in women: A systematic review

    Directory of Open Access Journals (Sweden)

    Zhang Li

    2006-12-01

    Full Text Available Abstract Background Breast cancer in women is increasingly frequent, and care is complex, onerous and expensive, all of which lend urgency to improvements in care. Quality measurement is essential to monitor effectiveness and to guide improvements in healthcare. Methods Ten databases, including Medline, were searched electronically to identify measures assessing the quality of breast cancer care in women (diagnosis, treatment, followup, documentation of care. Eligible studies measured adherence to standards of breast cancer care in women diagnosed with, or in treatment for, any histological type of adenocarcinoma of the breast. Reference lists of studies, review articles, web sites, and files of experts were searched manually. Evidence appraisal entailed dual independent assessments of data (e.g., indicators used in quality measurement. The extent of each quality indicator's scientific validation as a measure was assessed. The American Society of Clinical Oncology (ASCO was asked to contribute quality measures under development. Results Sixty relevant reports identified 58 studies with 143 indicators assessing adherence to quality breast cancer care. A paucity of validated indicators (n = 12, most of which assessed quality of life, only permitted a qualitative data synthesis. Most quality indicators evaluated processes of care. Conclusion While some studies revealed patterns of under-use of care, all adherence data require confirmation using validated quality measures. ASCO's current development of a set of quality measures relating to breast cancer care may hold the key to conducting definitive studies.

  6. Many quality measurements, but few quality measures assessing the quality of breast cancer care in women: a systematic review.

    Science.gov (United States)

    Schachter, Howard M; Mamaladze, Vasil; Lewin, Gabriela; Graham, Ian D; Brouwers, Melissa; Sampson, Margaret; Morrison, Andra; Zhang, Li; O'Blenis, Peter; Garritty, Chantelle

    2006-12-18

    Breast cancer in women is increasingly frequent, and care is complex, onerous and expensive, all of which lend urgency to improvements in care. Quality measurement is essential to monitor effectiveness and to guide improvements in healthcare. Ten databases, including Medline, were searched electronically to identify measures assessing the quality of breast cancer care in women (diagnosis, treatment, followup, documentation of care). Eligible studies measured adherence to standards of breast cancer care in women diagnosed with, or in treatment for, any histological type of adenocarcinoma of the breast. Reference lists of studies, review articles, web sites, and files of experts were searched manually. Evidence appraisal entailed dual independent assessments of data (e.g., indicators used in quality measurement). The extent of each quality indicator's scientific validation as a measure was assessed. The American Society of Clinical Oncology (ASCO) was asked to contribute quality measures under development. Sixty relevant reports identified 58 studies with 143 indicators assessing adherence to quality breast cancer care. A paucity of validated indicators (n = 12), most of which assessed quality of life, only permitted a qualitative data synthesis. Most quality indicators evaluated processes of care. While some studies revealed patterns of under-use of care, all adherence data require confirmation using validated quality measures. ASCO's current development of a set of quality measures relating to breast cancer care may hold the key to conducting definitive studies.

  7. Adaptive measurements of urban runoff quality

    Science.gov (United States)

    Wong, Brandon P.; Kerkez, Branko

    2016-11-01

    An approach to adaptively measure runoff water quality dynamics is introduced, focusing specifically on characterizing the timing and magnitude of urban pollutographs. Rather than relying on a static schedule or flow-weighted sampling, which can miss important water quality dynamics if parameterized inadequately, novel Internet-enabled sensor nodes are used to autonomously adapt their measurement frequency to real-time weather forecasts and hydrologic conditions. This dynamic approach has the potential to significantly improve the use of constrained experimental resources, such as automated grab samplers, which continue to provide a strong alternative to sampling water quality dynamics when in situ sensors are not available. Compared to conventional flow-weighted or time-weighted sampling schemes, which rely on preset thresholds, a major benefit of the approach is the ability to dynamically adapt to features of an underlying hydrologic signal. A 28 km2 urban watershed was studied to characterize concentrations of total suspended solids (TSS) and total phosphorus. Water quality samples were autonomously triggered in response to features in the underlying hydrograph and real-time weather forecasts. The study watershed did not exhibit a strong first flush and intraevent concentration variability was driven by flow acceleration, wherein the largest loadings of TSS and total phosphorus corresponded with the steepest rising limbs of the storm hydrograph. The scalability of the proposed method is discussed in the context of larger sensor network deployments, as well the potential to improving control of urban water quality.

  8. Measuring the Quality of Ecotourism Services

    Directory of Open Access Journals (Sweden)

    Nor’Aini Yusof

    2014-06-01

    Full Text Available Ecotourism forms the pillar of the country’s tourism industry. Ecotourists make up more than 10% of international tourists in Malaysia. When service quality is thought of as an important factor to the success of tourism service providers, the importance of estimating service quality provided to tourists becomes apparent. Estimating service quality provides tourism service providers with the necessary information needed to manage their marketing operations appropriately. Therefore, this estimation should be performed with the right measurement scales. Despite the high volume of research on service quality (SERVQUAL models in recent years, limited effort has been directed toward improving the tool for measuring service quality, particularly to apply to the ecotourism sector in developing countries. This article aims to improve a SERVQUAL model that is suitable for ecotourism areas in developing countries using five dimensions of the original model and one additional sustainability dimension. Based on a survey of 127 tourists in Tasik Kenyir, an exploratory factor analysis (EFA was conducted to discover the underlying dimension of ecotourism services and test for reliability and validity. Using EFA resulted in seven factors totaling 27 items. These factors are labeled as follows: tangible sustainability, sustainable practices, tangibility, reliability, responsiveness, assurance, and empathy. The results reveal that when SERVQUAL is applied within the ecotourism context, new dimensions of tangible sustainability and sustainable practices may emerge. The result implies the need to refine the SERVQUAL model when used in different contexts.

  9. In situ measurement of laser beam quality

    Science.gov (United States)

    Hashemi, Somayeh Sadat; Ghavami Sabouri, Saeed; Khorsandi, Alireza

    2017-09-01

    An innovative optical method is introduced for the beam quality measurement of any arbitrary transverse mode based on the reconstruction of the mode from a few-frame image of the beam cross-section. This is performed by the decomposition of a mode to its basic Hermite-Gaussian modal coefficients. The performance of the proposed method is examined through M 2-factor measurement of the beam of a Nd:YAG laser which was forced to oscillate in a certain mode using a crossed rectangular intracavity aperture. Obtained results have shown that this method can be alternatively replaced for the hologram- and ISO-based techniques recently exploiting for beam quality measurement regardless of the mode type and the position of utilized CCD camera along the beam direction.

  10. Quality assurance in nuclear medicine radioactivity measurements

    International Nuclear Information System (INIS)

    Sahagia, Maria; Razdolescu Anamaria Cristina

    2007-01-01

    The paper presents some recent results of the Radionuclide Metrology Laboratory (RML) from IFIN-HH, in the assurance of quality in radioactivity measurements for nuclear medicine. Three aspects are treated: (i) Participation of the RML in the frame of the IAEA Coordinated Research Program (CRP), E 2.10.05; (ii) Improvement of the secondary standard, based on a CENTRONIC IG12/20A ionization chamber; (iii) Implementation of the quality management, according to the SR EN ISO/IEC 17025:2005. (authors)

  11. Software metrics a rigorous and practical approach

    CERN Document Server

    Fenton, Norman

    2014-01-01

    A Framework for Managing, Measuring, and Predicting Attributes of Software Development Products and ProcessesReflecting the immense progress in the development and use of software metrics in the past decades, Software Metrics: A Rigorous and Practical Approach, Third Edition provides an up-to-date, accessible, and comprehensive introduction to software metrics. Like its popular predecessors, this third edition discusses important issues, explains essential concepts, and offers new approaches for tackling long-standing problems.New to the Third EditionThis edition contains new material relevant

  12. Quality improvement in neurology: dementia management quality measures.

    Science.gov (United States)

    Odenheimer, Germaine; Borson, Soo; Sanders, Amy E; Swain-Eng, Rebecca J; Kyomen, Helen H; Tierney, Samantha; Gitlin, Laura; Forciea, Mary Ann; Absher, John; Shega, Joseph; Johnson, Jerry

    2014-03-01

    Professional and advocacy organizations have long urged that dementia should be recognized and properly diagnosed. With the passage of the National Alzheimer's Project Act in 2011, an Advisory Council for Alzheimer's Research, Care, and Services was convened to advise the Department of Health and Human Services. In May 2012, the Council produced the first National Plan to address Alzheimer's disease, and prominent in its recommendations is a call for quality measures suitable for evaluating and tracking dementia care in clinical settings. Although other efforts have been made to set dementia care quality standards, such as those pioneered by RAND in its series Assessing Care of Vulnerable Elders (ACOVE), practitioners, healthcare systems, and insurers have not widely embraced implementation. This executive summary (full manuscript available at www.neurology.org) reports on a new measurement set for dementia management developed by an interdisciplinary Dementia Measures Work Group (DWG) representing the major national organizations and advocacy organizations concerned with the care of individuals with dementia. The American Academy of Neurology (AAN), the American Geriatrics Society, the American Medical Directors Association, the American Psychiatric Association, and the American Medical Association-convened Physician Consortium for Performance Improvement led this effort. The ACOVE measures and the measurement set described here apply to individuals whose dementia has already been identified and properly diagnosed. Although similar in concept to ACOVE, the DWG measurement set differs in several important ways; it includes all stages of dementia in a single measure set, calls for the use of functional staging in planning care, prompts the use of validated instruments in patient and caregiver assessment and intervention, highlights the relevance of using palliative care concepts to guide care before the advanced stages of illness, and provides evidence-based support

  13. Quality measurement by proportional counter with B

    International Nuclear Information System (INIS)

    Onizuka, Yoshihiko; Endo, Satoru; Tanaka, Kenichi

    2005-01-01

    The dosimetry of air and the tissue-equivalent phantom made of acryl are carried out by the tissue-equivalent proportional counter (TEPC) and TEPC with wall contained B, and both results were compared. The changes of quality with distance from the beam center are determined by the frequency mean renewal energy y F (y)and the dose mean renewal energy y D (y) as indicators of quality. Both y F (y)and y D (y) of tissue-equivalent phantom are larger than air, but very large change was not observed in all distance. The dose rate is determined by y D (y), the number of events and measurement time. Change of dose rate was larger than the change of quality. The maximum value of dose rate depended on γray and neutron beam showed at the point 2 cm away from the center. (S.Y.)

  14. Determining the Measurement Quality of a Montessori High School Teacher Evaluation Survey

    Directory of Open Access Journals (Sweden)

    Anthony Philip Setari

    2017-05-01

    Full Text Available The purpose of this study was to conduct a psychometric validation of a course evaluation instrument, known as a student evaluation of teaching (SET, implemented in a Montessori high school. The authors demonstrate to the Montessori community how to rigorously examine the measurement and assessment quality of instruments used within Montessori schools. The Montessori high school community needs an SET that has been rigorously examined for measurement issues. The examined SET was developed by a Montessori high school, and the sample data were collected from Montessori high school students. Using a Rasch partial credit model, the results of the analysis identified several measurement issues, including multidimensionality, misfit items, and inappropriate item difficulty levels. A revised version of the SET underwent the same analysis procedure, and the results indicated that measurement issues persisted. The authors suggest several ways to improve the overall measurement quality of the instrument while keeping the Montessori foundation. Additional validation studies with a revised version of the SET will be needed before the instrument can be endorsed for full implementation in a Montessori setting.

  15. Accountability Quality Shuffler Measurements on Pits

    International Nuclear Information System (INIS)

    Rinard, P.M.

    2000-01-01

    Pits have generally been treated as accountable units that are intact if merely present and they are excluded from the more demanding nondestructive assay requirements. As pits begin to flow into disposition streams, there may be more incentive to measure the masses of their fissile components for accountability purposes. This Department of Energy Office of Safeguards and Security (OSS) Lifecycle Project has explored some ways in which such measurements may be done successfully. The active neutron instrument called a shuffler has been used to measure a variety of actual pits, and a calculational technique has been developed to accurately predict such count rates. Passive multiplicity counting has previously been applied to pits for determining their plutonium contents. This combination of measurement and calculational techniques provide powerful and accurate tools for determining the fissile contents of pits with the quality needed for accountability purposes

  16. Measurement quality assurance for radioassay laboratories

    International Nuclear Information System (INIS)

    McCurdy, D.E.

    1993-01-01

    Until recently, the quality of U.S. radioassay laboratory services has been evaluated by a limited number of governmental measurement assurance programs (MAPs). The major programs have been limited to the U.S. Department of Energy (DOE), the U.S. Environmental Protection Agency (EPA) and the U.S. Nuclear Regulatory Commission (NRC). In 1988, an industry MAP was established for the nuclear power utility industry through the U.S. Council for Energy Awareness/National Institute of Standards and Technology (USCEA/NIST). This program functions as both a MAP for utility laboratories and/or their commercial contractor laboratories, and as a traceability program for the U.S. radioactive source manufacturers and the utility laboratories. Each of these generic MAPs has been initiated and is maintained to serve the specific needs of the sponsoring agency or organization. As a result, there is diversification in their approach, scope, requirements, and degree of traceability to NIST. In 1987, a writing committee was formed under the American National Standards Institute (ANSI) N42.2 committee to develop a standard to serve as the basis document for the creation of a national measurement quality assurance (MQA) program for radioassay laboratories in the U.S. The standard is entitled, open-quotes Measurement Quality Assurance For Radioassay Laboratories.open-quotes The document was developed to serve as a guide for MQA programs maintained for the specialized sectors of the radioassay community, such as bioassay, routine environmental monitoring, environmental restoration and waste management, radiopharmaceuticals, and nuclear facilities. It was the intent of the writing committee to develop a guidance document that could be utilized to establish a laboratory's specific data quality objectives (DQOs) that govern the operational requirements of the radioassay process, including mandated protocols and recommendations

  17. Measurement quality assurance for radioassay laboratories

    Energy Technology Data Exchange (ETDEWEB)

    McCurdy, D.E. [Yankee Atomic Environmental Laboratory, Boston, MA (United States)

    1993-12-31

    Until recently, the quality of U.S. radioassay laboratory services has been evaluated by a limited number of governmental measurement assurance programs (MAPs). The major programs have been limited to the U.S. Department of Energy (DOE), the U.S. Environmental Protection Agency (EPA) and the U.S. Nuclear Regulatory Commission (NRC). In 1988, an industry MAP was established for the nuclear power utility industry through the U.S. Council for Energy Awareness/National Institute of Standards and Technology (USCEA/NIST). This program functions as both a MAP for utility laboratories and/or their commercial contractor laboratories, and as a traceability program for the U.S. radioactive source manufacturers and the utility laboratories. Each of these generic MAPs has been initiated and is maintained to serve the specific needs of the sponsoring agency or organization. As a result, there is diversification in their approach, scope, requirements, and degree of traceability to NIST. In 1987, a writing committee was formed under the American National Standards Institute (ANSI) N42.2 committee to develop a standard to serve as the basis document for the creation of a national measurement quality assurance (MQA) program for radioassay laboratories in the U.S. The standard is entitled, {open_quotes}Measurement Quality Assurance For Radioassay Laboratories.{open_quotes} The document was developed to serve as a guide for MQA programs maintained for the specialized sectors of the radioassay community, such as bioassay, routine environmental monitoring, environmental restoration and waste management, radiopharmaceuticals, and nuclear facilities. It was the intent of the writing committee to develop a guidance document that could be utilized to establish a laboratory`s specific data quality objectives (DQOs) that govern the operational requirements of the radioassay process, including mandated protocols and recommendations.

  18. Measuring the quality of clinical audit projects.

    Science.gov (United States)

    Millard, A D

    2000-11-01

    The aim of the study was to develop and pilot a scale measuring the quality of audit projects through audit project reports. Statements about clinical audit projects were selected from existing instruments assessing the quality of clinical audit projects to form a Likert scale. Audit facilitators based in Scottish health boards and trusts piloted the scale. The participants were known to have over 2 years of experience of supporting clinical audit. The response at first test was 11 of 14 and at the second test 27 of 46. Audit facilitators tested the draft scale by expressing their strength of agreement or disagreement with each statement for three reports. Validity and reliability were assessed by test - re-test, item - total, and total - global indicator correlation. Of the 20 statements, 15 had satisfactory correlation with scale totals. Scale totals had good correlation with global indicators. Test re-test correlation was modest. The wide range of responses means further research is needed to measure the consistency of audit facilitators' interpretations, perhaps comparing a trained group with an untrained group. There may be a need for a separate scale for reaudits. Educational impact is distinct from project impact generally. It may be more meaningful to treat the selection of projects and aims, methodology and impact separately as subscales and take a project profiling approach rather than attempting to produce a global quality index.

  19. Defining Multiple Chronic Conditions for Quality Measurement.

    Science.gov (United States)

    Drye, Elizabeth E; Altaf, Faseeha K; Lipska, Kasia J; Spatz, Erica S; Montague, Julia A; Bao, Haikun; Parzynski, Craig S; Ross, Joseph S; Bernheim, Susannah M; Krumholz, Harlan M; Lin, Zhenqiu

    2018-02-01

    Patients with multiple chronic conditions (MCCs) are a critical but undefined group for quality measurement. We present a generally applicable systematic approach to defining an MCC cohort of Medicare fee-for-service beneficiaries that we developed for a national quality measure, risk-standardized rates of unplanned admissions for Accountable Care Organizations. To define the MCC cohort we: (1) identified potential chronic conditions; (2) set criteria for cohort conditions based on MCC framework and measure concept; (3) applied the criteria informed by empirical analysis, experts, and the public; (4) described "broader" and "narrower" cohorts; and (5) selected final cohort with stakeholder input. Subjects were patients with chronic conditions. Participants included 21.8 million Medicare fee-for-service beneficiaries in 2012 aged 65 years and above with ≥1 of 27 Medicare Chronic Condition Warehouse condition(s). In total, 10 chronic conditions were identified based on our criteria; 8 of these 10 were associated with notably increased admission risk when co-occurring. A broader cohort (2+ of the 8 conditions) included 4.9 million beneficiaries (23% of total cohort) with an admission rate of 70 per 100 person-years. It captured 53% of total admissions. The narrower cohort (3+ conditions) had 2.2 million beneficiaries (10%) with 100 admissions per 100 person-years and captured 32% of admissions. Most stakeholders viewed the broader cohort as best aligned with the measure concept. By systematically narrowing chronic conditions to those most relevant to the outcome and incorporating stakeholder input, we defined an MCC admission measure cohort supported by stakeholders. This approach can be used as a model for other MCC outcome measures.

  20. Quality assurance for radon measurements in Germany

    International Nuclear Information System (INIS)

    Beck, T.R.; Buchroeder, H.; Foerster, E.; Schmidt, V.

    2005-01-01

    Full text: Radiation protection regarding work activities at workplaces with naturally occurring radiation has been regulated in the German Radiation Protection Ordinance. Regulations refer only to workplaces where the presence of natural radiation leads to a significant increase in the exposure of workers. These workplaces were identified in the following working areas with enhanced exposures to radon-222: underground mines, including visitor mines and show caves; radon-spas and galleries; water supply and distribution industries. Presently, regulations are being initiated by the German government to limit the exposures to radon in homes. For radon measurements at workplaces passive radon devices for individual monitoring as well as active measuring systems for workplace monitoring can be used. However, passive radon devices are preferred for radon measurements in homes because of low costs and availability in large quantities. To assure the quality of radon measurements the German Federal Office for Radiation Protection (BfS) has established annual interlaboratory comparisons for passive radon devices. The comparisons are carried out in the BfS radon calibration laboratory accredited by the German Calibration Service. Passive radon devices which use solid state track detectors, electrets or activated charcoal can be submitted. Approved radon services which offer radon measurements to determine radon exposure in homes and at workplaces have to pass the comparisons successfully. (author)

  1. Quality management for discharge measurements in Bavaria

    Energy Technology Data Exchange (ETDEWEB)

    Roth, Carmen [Hydrology of surface Waters, Bavarian Environment Agency, Hof (Germany)], E-mail: Carmen.Roth@lfu.bayern.de

    2008-11-01

    The hydrology of surface waters is based on the knowledge of the two main hydrological parameters, water level and discharge. These data are not only needed for almost every hydrological planning, but are very important for the management of high and low water. Our long term goal is a complete registration of every natural runoff - covering everything from low to high water - at our 600 measuring stations using limited resources but at the same time achieving high reliability and quality. To this point we are currently enforcing the use of modern data acquisition technology for water level and discharge measurements. The new techniques enable a continuous registration of water levels, actual velocity and consequently the discharge. Currently we are using gauging methods like the well known bubble gauge and radar, while the ultrasonic systems become more and more frequent. The moving boat techniques using the ultrasonic-Doppler-systems (e.g. ADCP, Q-Liner) are gradually substituting traditional methods for discharge measurement. In addition to that hydraulic methods (e. g. SIMK (registered) ) are being incorporated in the measuring systems as well. Since 2000 almost all gauges have been equipped with data loggers and automatic data transmission systems. One of the outcomes of these investments is the online availability of hydrological data on our website (www.hnd.bayern.de) where high quality data can be easily accessed. A new project has been initiated to improve the present rating curve. By means of hydraulic calculation the curve will be verified and if necessary adjusted to minimise deviations in the near future, which is of high importance especially for flooding forecasts.

  2. Quality management for discharge measurements in Bavaria

    International Nuclear Information System (INIS)

    Roth, Carmen

    2008-01-01

    The hydrology of surface waters is based on the knowledge of the two main hydrological parameters, water level and discharge. These data are not only needed for almost every hydrological planning, but are very important for the management of high and low water. Our long term goal is a complete registration of every natural runoff - covering everything from low to high water - at our 600 measuring stations using limited resources but at the same time achieving high reliability and quality. To this point we are currently enforcing the use of modern data acquisition technology for water level and discharge measurements. The new techniques enable a continuous registration of water levels, actual velocity and consequently the discharge. Currently we are using gauging methods like the well known bubble gauge and radar, while the ultrasonic systems become more and more frequent. The moving boat techniques using the ultrasonic-Doppler-systems (e.g. ADCP, Q-Liner) are gradually substituting traditional methods for discharge measurement. In addition to that hydraulic methods (e. g. SIMK (registered) ) are being incorporated in the measuring systems as well. Since 2000 almost all gauges have been equipped with data loggers and automatic data transmission systems. One of the outcomes of these investments is the online availability of hydrological data on our website (www.hnd.bayern.de) where high quality data can be easily accessed. A new project has been initiated to improve the present rating curve. By means of hydraulic calculation the curve will be verified and if necessary adjusted to minimise deviations in the near future, which is of high importance especially for flooding forecasts.

  3. Video quality measure for mobile IPTV service

    Science.gov (United States)

    Kim, Wonjun; Kim, Changick

    2008-08-01

    Mobile IPTV is a multimedia service based on wireless networks with interactivity and mobility. Under mobile IPTV scenarios, people can watch various contents whenever they want and even deliver their request to service providers through the network. However, the frequent change of the wireless channel bandwidth may hinder the quality of service. In this paper, we propose an objective video quality measure (VQM) for mobile IPTV services, which is focused on the jitter measurement. Jitter is the result of frame repetition during the delay and one of the most severe impairments in the video transmission via mobile channels. We first employ YUV color space to compute the duration and occurrences of jitter and the motion activity. Then the VQM is modeled by the combination of these three factors and the result of subjective assessment. Since the proposed VQM is based on no-reference (NR) model, it can be applied for real-time applications. Experimental results show that the proposed VQM highly correlates to subjective evaluation.

  4. Measures of Image Quality. Chapter 4

    Energy Technology Data Exchange (ETDEWEB)

    Maidment, A. D.A. [University of Pennsylvania, Philadelphia (United States)

    2014-09-15

    A medical image is a pictorial representation of a measurement of an object or function of the body. This information can be acquired in one to three spatial dimensions. It can be static or dynamic, meaning that it can also be measured as a function of time. Certain fundamental properties can be associated with all of these data. Firstly, no image can exactly represent the object or function; at best, one has a measurement with an associated error equal to the difference between the true object and the measured image. Secondly, no two images will be identical, even if acquired with the same imaging system of the same anatomic region; this variability is generally referred to as noise. There are many different ways to acquire medical image data; the various mechanisms of acquisition are described in detail in the subsequent chapters. However, regardless of the method of image formation, one must be able to judge the fidelity of the image in an attempt to answer the question “How accurately does the image portray the body or the bodily function?” This judgement falls under the rubric of ‘image quality’. In this chapter, methods of quantifying image quality are described.

  5. Financial incentives and measurement improved physicians' quality of care in the Philippines.

    Science.gov (United States)

    Peabody, John; Shimkhada, Riti; Quimbo, Stella; Florentino, Jhiedon; Bacate, Marife; McCulloch, Charles E; Solon, Orville

    2011-04-01

    The merits of using financial incentives to improve clinical quality have much appeal, yet few studies have rigorously assessed the potential benefits. The uncertainty surrounding assessments of quality can lead to poor policy decisions, possibly resulting in increased cost with little or no quality improvement, or missed opportunities to improve care. We conducted an experiment involving physicians in thirty Philippine hospitals that overcomes many of the limitations of previous studies. We measured clinical performance and then examined whether modest bonuses equal to about 5 percent of a physician's salary, as well as system-level incentives that increased compensation to hospitals and across groups of physicians, led to improvements in the quality of care. We found that both the bonus and system-level incentives improved scores in a quality measurement system used in our study by ten percentage points. Our findings suggest that when careful measurement is combined with the types of incentives we studied, there may be a larger impact on quality than previously recognized.

  6. Realizing rigor in the mathematics classroom

    CERN Document Server

    Hull, Ted H (Henry); Balka, Don S

    2014-01-01

    Rigor put within reach! Rigor: The Common Core has made it policy-and this first-of-its-kind guide takes math teachers and leaders through the process of making it reality. Using the Proficiency Matrix as a framework, the authors offer proven strategies and practical tools for successful implementation of the CCSS mathematical practices-with rigor as a central objective. You'll learn how to Define rigor in the context of each mathematical practice Identify and overcome potential issues, including differentiating instruction and using data

  7. The exploration of service quality and its measurement for private ...

    African Journals Online (AJOL)

    The strategic importance of service excellence for service industries places the focus on service quality leadership, service quality management systems, service quality dimensions and the measurement of service quality. Many businesses such as private higher education institutions (PHEIs) regard service quality ...

  8. Physiological studies of muscle rigor mortis in the fowl

    International Nuclear Information System (INIS)

    Nakahira, S.; Kaneko, K.; Tanaka, K.

    1990-01-01

    A simple system was developed for continuous measurement of muscle contraction during nor mortis. Longitudinal muscle strips dissected from the Peroneus Longus were suspended in a plastic tube containing liquid paraffin. Mechanical activity was transmitted to a strain-gauge transducer which is connected to a potentiometric pen-recorder. At the onset of measurement 1.2g was loaded on the muscle strip. This model was used to study the muscle response to various treatments during nor mortis. All measurements were carried out under the anaerobic condition at 17°C, except otherwise stated. 1. The present system was found to be quite useful for continuous measurement of muscle rigor course. 2. Muscle contraction under the anaerobic condition at 17°C reached a peak about 2 hours after the onset of measurement and thereafter it relaxed at a slow rate. In contrast, the aerobic condition under a high humidity resulted in a strong rigor, about three times stronger than that in the anaerobic condition. 3. Ultrasonic treatment (37, 000-47, 000Hz) at 25°C for 10 minutes resulted in a moderate muscle rigor. 4. Treatment of muscle strip with 2mM EGTA at 30°C for 30 minutes led to a relaxation of the muscle. 5. The muscle from the birds killed during anesthesia with pentobarbital sodium resulted in a slow rate of rigor, whereas the birds killed one day after hypophysectomy led to a quick muscle rigor as seen in intact controls. 6. A slight muscle rigor was observed when muscle strip was placed in a refrigerator at 0°C for 18.5 hours and thereafter temperature was kept at 17°C. (author)

  9. Students Matter: Quality Measurements in Online Courses

    Science.gov (United States)

    Unal, Zafer; Unal, Aslihan

    2016-01-01

    Quality Matters (QM) is a peer review process designed to certify the quality of online courses and online components. It has generated widespread interest and received national recognition for its peer-based approach to quality assurance and continuous improvement in online education. While the entire QM online course design process is…

  10. Quantitative comparison of measurements of urgent care service quality.

    Science.gov (United States)

    Qin, Hong; Prybutok, Victor; Prybutok, Gayle

    2016-01-01

    Service quality and patient satisfaction are essential to health care organization success. Parasuraman, Zeithaml, and Berry introduced SERVQUAL, a prominent service quality measure not yet applied to urgent care. We develop an instrument to measure perceived service quality and identify the determinants of patient satisfaction/ behavioral intentions. We examine the relationships among perceived service quality, patient satisfaction and behavioral intentions, and demonstrate that urgent care service quality is not equivalent using measures of perceptions only, differences of expectations minus perceptions, ratio of perceptions to expectations, and the log of the ratio. Perceptions provide the best measure of urgent care service quality.

  11. Signal quality measures for unsupervised blood pressure measurement

    International Nuclear Information System (INIS)

    Abdul Sukor, J; Redmond, S J; Lovell, N H; Chan, G S H

    2012-01-01

    Accurate systolic and diastolic pressure estimation, using automated blood pressure measurement, is difficult to achieve when the transduced signals are contaminated with noise or interference, such as movement artifact. This study presents an algorithm for automated signal quality assessment in blood pressure measurement by determining the feasibility of accurately detecting systolic and diastolic pressures when corrupted with various levels of movement artifact. The performance of the proposed algorithm is compared to a manually annotated reference scoring (RS). Based on visual representations and audible playback of Korotkoff sounds, the creation of the RS involved two experts identifying sections of the recorded sounds and annotating sections of noise contamination. The experts determined the systolic and diastolic pressure in 100 recorded Korotkoff sound recordings, using a simultaneous electrocardiograph as a reference signal. The recorded Korotkoff sounds were acquired from 25 healthy subjects (16 men and 9 women) with a total of four measurements per subject. Two of these measurements contained purposely induced noise artifact caused by subject movement. Morphological changes in the cuff pressure signal and the width of the Korotkoff pulse were extracted features which were believed to be correlated with the noise presence in the recorded Korotkoff sounds. Verification of reliable Korotkoff pulses was also performed using extracted features from the oscillometric waveform as recorded from the inflatable cuff. The time between an identified noise section and a verified Korotkoff pulse was the key feature used to determine the validity of possible systolic and diastolic pressures in noise contaminated Korotkoff sounds. The performance of the algorithm was assessed based on the ability to: verify if a signal was contaminated with any noise; the accuracy, sensitivity and specificity of this noise classification, and the systolic and diastolic pressure

  12. SALE, Quality Control of Analytical Chemical Measurements

    International Nuclear Information System (INIS)

    Bush, W.J.; Gentillon, C.D.

    1985-01-01

    1 - Description of problem or function: The Safeguards Analytical Laboratory Evaluation (SALE) program is a statistical analysis program written to analyze the data received from laboratories participating in the SALE quality control and evaluation program. The system is aimed at identifying and reducing analytical chemical measurement errors. Samples of well-characterized materials are distributed to laboratory participants at periodic intervals for determination of uranium or plutonium concentration and isotopic distributions. The results of these determinations are statistically evaluated and participants are informed of the accuracy and precision of their results. 2 - Method of solution: Various statistical techniques produce the SALE output. Assuming an unbalanced nested design, an analysis of variance is performed, resulting in a test of significance for time and analyst effects. A trend test is performed. Both within- laboratory and between-laboratory standard deviations are calculated. 3 - Restrictions on the complexity of the problem: Up to 1500 pieces of data for each nuclear material sampled by a maximum of 75 laboratories may be analyzed

  13. Rigorous Science: a How-To Guide

    Directory of Open Access Journals (Sweden)

    Arturo Casadevall

    2016-11-01

    Full Text Available Proposals to improve the reproducibility of biomedical research have emphasized scientific rigor. Although the word “rigor” is widely used, there has been little specific discussion as to what it means and how it can be achieved. We suggest that scientific rigor combines elements of mathematics, logic, philosophy, and ethics. We propose a framework for rigor that includes redundant experimental design, sound statistical analysis, recognition of error, avoidance of logical fallacies, and intellectual honesty. These elements lead to five actionable recommendations for research education.

  14. Estimation of the breaking of rigor mortis by myotonometry.

    Science.gov (United States)

    Vain, A; Kauppila, R; Vuori, E

    1996-05-31

    Myotonometry was used to detect breaking of rigor mortis. The myotonometer is a new instrument which measures the decaying oscillations of a muscle after a brief mechanical impact. The method gives two numerical parameters for rigor mortis, namely the period and decrement of the oscillations, both of which depend on the time period elapsed after death. In the case of breaking the rigor mortis by muscle lengthening, both the oscillation period and decrement decreased, whereas, shortening the muscle caused the opposite changes. Fourteen h after breaking the stiffness characteristics of the right and left m. biceps brachii, or oscillation periods, were assimilated. However, the values for decrement of the muscle, reflecting the dissipation of mechanical energy, maintained their differences.

  15. What Is Nursing Home Quality and How Is It Measured?

    Science.gov (United States)

    Castle, Nicholas G.; Ferguson, Jamie C.

    2010-01-01

    Purpose: In this commentary, we examine nursing home quality and indicators that have been used to measure nursing home quality. Design and Methods: A brief review of the history of nursing home quality is presented that provides some context and insight into currently used quality indicators. Donabedian's structure, process, and outcome (SPO)…

  16. Innovative United Kingdom Approaches To Measuring Service Quality.

    Science.gov (United States)

    Winkworth, Ian

    2001-01-01

    Reports on approaches to measuring the service quality of academic libraries in the United Kingdom. Discusses the role of government and the national background of quality measurement; measurement frameworks; better use of statistics; benchmarking; measuring user satisfaction; and possible future development. (Author/LRW)

  17. Measuring the Quality of Professional Development Training

    Science.gov (United States)

    Gaumer Erickson, Amy S.; Noonan, Patricia M.; Brussow, Jennifer; Supon Carter, Kayla

    2017-01-01

    High-quality, evidence-based professional development is essential to ensure that teachers obtain the knowledge, strategies and skills necessary to positively impact student learning. While the primary form of professional development, training has rarely been evaluated for quality beyond the satisfaction of those being trained. The Observation…

  18. Competency-Based Education: A Framework for Measuring Quality Courses

    Science.gov (United States)

    Krause, Jackie; Dias, Laura Portolese; Schedler, Chris

    2015-01-01

    The growth of competency-based education in an online environment requires the development and measurement of quality competency-based courses. While quality measures for online courses have been developed and standardized, they do not directly align with emerging best practices and principles in the design of quality competency-based online…

  19. Quality Measures for Digital Business Ecosystems Formation

    Science.gov (United States)

    Raza, Muhammad; Hussain, Farookh Khadeer; Chang, Elizabeth

    To execute a complex business task, business entities may need to collaborate with each other as individually they may not have the capability or willingness to perform the task on its own. Such collaboration can be seen implemented in digital business ecosystems in the form of simple coalitions using multi-agent systems or by employing Electronic Institutions. A major challenge is choosing optimal partners who will deliver the agreed commitments, and act in the coalition’s interest. Business entities are scaled according to their quality level. Determining the quality of previously unknown business entities and predicting the quality of such an entity in a dynamic environment are crucial issues in Business Ecosystems. A comprehensive quality management system grounded in the concepts of Trust and Reputation can help address these issues.

  20. Carbonate chemistry, water quality, coral measurements

    Data.gov (United States)

    U.S. Environmental Protection Agency — Carbonate chemistry parameters (pH, total alkalinity, and pCO2), water quality parameters (Temperature, salinity, Ca, Mg, PO4, NH3 and NO3) as well as all coral...

  1. Software process improvement, quality assurance and measurement

    NARCIS (Netherlands)

    Trienekens, J.J.M.; Kusters, R.J.; Balla, K.; Kontogiannis, K.; Zou, Y.; Di Penta, M.

    2006-01-01

    The aim of this workshop was to present and discuss emergent software quality improvement approaches, with an emphasis on practical applications. Different views on the improvement of software processes, software products, and their interrelations, have been addressed during the workshop.

  2. A fourier transform quality measure for iris images

    CSIR Research Space (South Africa)

    Makinana, S

    2014-08-01

    Full Text Available to ensure that good quality images are selected for feature extraction, in order to improve iris recognition system. In addition, this research proposes a measure of iris image quality using a Fourier Transform. The experimental results demonstrate...

  3. Measuring educational heterogeneity and labor quality

    DEFF Research Database (Denmark)

    Fosgerau, Mogens; Hougaard Jensen, Svend E.; Sørensen, Anders

    2002-01-01

    This paper investigates the magnitude of the mismeasurement that occurs when only a few education categories are used in the construction of a constant quality index for labor input. By employing a very comprehensive data set it is found that the error resulting from the omission of information...... on education is relatively small. The empirical results are thus supportive of the current state of practice of constructing indices of constant quality labor input....

  4. Measurement of Quality to Improve Care in Sleep Medicine

    OpenAIRE

    Morgenthaler, Timothy I.; Aronsky, Amy J.; Carden, Kelly A.; Chervin, Ronald D.; Thomas, Sherene M.; Watson, Nathaniel F.

    2015-01-01

    The Board of Directors of the American Academy of Sleep Medicine (AASM) commissioned a Task Force to develop quality measures as part of its strategic plan to promote high quality patient-centered care. Among many potential dimensions of quality, the AASM requested Workgroups to develop outcome and process measures to aid in evaluating the quality of care of five common sleep disorders: restless legs syndrome, insomnia, narcolepsy, obstructive sleep apnea in adults, and obstructive sleep apne...

  5. 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

  6. Rigor, vigor, and the study of health disparities.

    Science.gov (United States)

    Adler, Nancy; Bush, Nicole R; Pantell, Matthew S

    2012-10-16

    Health disparities research spans multiple fields and methods and documents strong links between social disadvantage and poor health. Associations between socioeconomic status (SES) and health are often taken as evidence for the causal impact of SES on health, but alternative explanations, including the impact of health on SES, are plausible. Studies showing the influence of parents' SES on their children's health provide evidence for a causal pathway from SES to health, but have limitations. Health disparities researchers face tradeoffs between "rigor" and "vigor" in designing studies that demonstrate how social disadvantage becomes biologically embedded and results in poorer health. Rigorous designs aim to maximize precision in the measurement of SES and health outcomes through methods that provide the greatest control over temporal ordering and causal direction. To achieve precision, many studies use a single SES predictor and single disease. However, doing so oversimplifies the multifaceted, entwined nature of social disadvantage and may overestimate the impact of that one variable and underestimate the true impact of social disadvantage on health. In addition, SES effects on overall health and functioning are likely to be greater than effects on any one disease. Vigorous designs aim to capture this complexity and maximize ecological validity through more complete assessment of social disadvantage and health status, but may provide less-compelling evidence of causality. Newer approaches to both measurement and analysis may enable enhanced vigor as well as rigor. Incorporating both rigor and vigor into studies will provide a fuller understanding of the causes of health disparities.

  7. MOOC Quality: The Need for New Measures

    Science.gov (United States)

    Hood, Nina; Littlejohn, Allison

    2016-01-01

    MOOCs are re-operationalising traditional concepts in education. While they draw on elements of existing educational and learning models, they represent a new approach to instruction and learning. The challenges MOOCs present to traditional education models have important implications for approaching and assessing quality. This paper foregrounds…

  8. The quality of measurements a metrological reference

    CERN Document Server

    Fridman, A E

    2012-01-01

    This book provides a detailed discussion and commentary on the fundamentals of metrology. The fundamentals of metrology, the principles underlying the design of the SI International System of units, the theory of measurement error, a new methodology for estimation of measurement accuracy based on uncertainty, and methods for reduction of measured results and estimation of measurement uncertainty are all discussed from a modern point of view. The concept of uncertainty is shown to be consistent with the classical theory of accuracy. The theory of random measurement errors is supplemented by a very general description based on the generalized normal distribution; systematic instrumental error is described in terms of a methodology for normalizing the metrological characteristics of measuring instruments. A new international system for assuring uniformity of measurements based on agreements between national metrological institutes is discussed, in addition to the role and procedure for performance of key compari...

  9. Quality Measures for the Care of Patients with Insomnia

    Science.gov (United States)

    Edinger, Jack D.; Buysse, Daniel J.; Deriy, Ludmila; Germain, Anne; Lewin, Daniel S.; Ong, Jason C.; Morgenthaler, Timothy I.

    2015-01-01

    The American Academy of Sleep Medicine (AASM) commissioned five Workgroups to develop quality measures to optimize management and care for patients with common sleep disorders including insomnia. Following the AASM process for quality measure development, this document describes measurement methods for two desirable outcomes of therapy, improving sleep quality or satisfaction, and improving daytime function, and for four processes important to achieving these goals. To achieve the outcome of improving sleep quality or satisfaction, pre- and post-treatment assessment of sleep quality or satisfaction and providing an evidence-based treatment are recommended. To realize the outcome of improving daytime functioning, pre- and post-treatment assessment of daytime functioning, provision of an evidence-based treatment, and assessment of treatment-related side effects are recommended. All insomnia measures described in this report were developed by the Insomnia Quality Measures Workgroup and approved by the AASM Quality Measures Task Force and the AASM Board of Directors. The AASM recommends the use of these measures as part of quality improvement programs that will enhance the ability to improve care for patients with insomnia. Citation: Edinger JD, Buysse DJ, Deriy L, Germain A, Lewin DS, Ong JC, Morgenthaler TI. Quality measures for the care of patients with insomnia. J Clin Sleep Med 2015;11(3):311–334. PMID:25700881

  10. Measuring the Multifaceted Nature of Infant and Toddler Care Quality

    Science.gov (United States)

    Mangione, Peter L.; Kriener-Althen, Kerry; Marcella, Jennifer

    2016-01-01

    Research Findings: The quality of group care infants and toddlers experience relates to their concurrent and later development. Recent quality improvement initiatives point to the need for ecologically valid measures that assess the multifaceted nature of child care quality. In this article, we present the psychometric properties of an infant and…

  11. "Rigor mortis" in a live patient.

    Science.gov (United States)

    Chakravarthy, Murali

    2010-03-01

    Rigor mortis is conventionally a postmortem change. Its occurrence suggests that death has occurred at least a few hours ago. The authors report a case of "Rigor Mortis" in a live patient after cardiac surgery. The likely factors that may have predisposed such premortem muscle stiffening in the reported patient are, intense low cardiac output status, use of unusually high dose of inotropic and vasopressor agents and likely sepsis. Such an event may be of importance while determining the time of death in individuals such as described in the report. It may also suggest requirement of careful examination of patients with muscle stiffening prior to declaration of death. This report is being published to point out the likely controversies that might arise out of muscle stiffening, which should not always be termed rigor mortis and/ or postmortem.

  12. Measuring the quality of eligible collateral

    OpenAIRE

    Lehmbecker, Philipp; Missong, Martin

    2008-01-01

    Recently, the U. S. subprime crisis has shown that a weak collateralization of credits may have massive economic implications, entailing severe perturbations of the international financial system. We focus on central bank lending and try to pin down the quantitative impact of the collateralization of central banks' credits. A questionnaire on national monetary frameworks was used to collect data from central banks. Drawing on these data we derive an index of the quality of eligible assets mea...

  13. Implementing and using quality measures for children's health care: perspectives on the state of the practice.

    Science.gov (United States)

    Shaller, Dale

    2004-01-01

    care quality measurement and improvement based on rigorous cost-bigorous cost-benefit analysis and documentation of quantifiable successes; 2) develop new measures to fill the gaps in critical areas (including adolescent health care, behavioral health, and chronic conditions) that can be applied at the hospital and ambulatory care provider levels; 3) invest in building needed research capacity, a trained pool of users of quality measures, and the capacity among providers to understand and use quality-improvement methods and tools; 4) invest in developing an information infrastructure that will support the efficient collection and use of measures for multiple purposes, including clinical practice, quality measurement, and quality improvement; and 5) develop increased public awareness and support for quality measurement based on improved strategies for communicating with consumers, purchasers, providers, and policy makers. Several implications are suggested by these perspectives for the future direction of quality measurement in children's health care. First, to meet the funding needs identified, many funders must improve coordination to reduce the noise and fragmentation generated by numerous competing or redundant activities. Improved coordination among funders will help assure maximum impact and the efficient use of scarce resources. Second, the importance attached to standardization of measures by both users and developers may conflict at times with the need for innovation and flexibility. Child health quality leaders will need to manage this tension between standardization and innovation to maintain an appropriate balance between the benefits of both. Finally, many of the obstacles identified are not unique to children's health care. Child health quality leaders will need to determine to what extent their efforts to overcome these obstacles can be successfully undertaken independently as opposed to in concert with groups concerned about other populations and sectors

  14. On Quality and Measures in Software Engineering

    Science.gov (United States)

    Bucur, Ion I.

    2006-01-01

    Complexity measures are mainly used to estimate vital information about reliability and maintainability of software systems from regular analysis of the source code. Such measures also provide constant feedback during a software project to assist the control of the development procedure. There exist several models to classify a software product's…

  15. The quality infrastructure measuring, analyzing, and improving library services

    CERN Document Server

    Murphy, Sarah Anne

    2013-01-01

    Summarizing specific tools for measuring service quality alongside tips for using these tools most effectively, this book helps libraries of all kinds take a programmatic approach to measuring, analyzing, and improving library services.

  16. An ultramicroscopic study on rigor mortis.

    Science.gov (United States)

    Suzuki, T

    1976-01-01

    Gastrocnemius muscles taken from decapitated mice at various intervals after death and from mice killed by 2,4-dinitrophenol or mono-iodoacetic acid injection to induce rigor mortis soon after death, were observed by electron microscopy. The prominent appearance of many fine cross striations in the myofibrils (occurring about every 400 A) was considered to be characteristic of rigor mortis. These striations were caused by minute granules studded along the surfaces of both thick and thin filaments and appeared to be the bridges connecting the 2 kinds of filaments and accounted for the hardness and rigidity of the muscle.

  17. Fourier transform based scalable image quality measure.

    Science.gov (United States)

    Narwaria, Manish; Lin, Weisi; McLoughlin, Ian; Emmanuel, Sabu; Chia, Liang-Tien

    2012-08-01

    We present a new image quality assessment (IQA) algorithm based on the phase and magnitude of the 2D (twodimensional) Discrete Fourier Transform (DFT). The basic idea is to compare the phase and magnitude of the reference and distorted images to compute the quality score. However, it is well known that the Human Visual Systems (HVSs) sensitivity to different frequency components is not the same. We accommodate this fact via a simple yet effective strategy of nonuniform binning of the frequency components. This process also leads to reduced space representation of the image thereby enabling the reduced-reference (RR) prospects of the proposed scheme. We employ linear regression to integrate the effects of the changes in phase and magnitude. In this way, the required weights are determined via proper training and hence more convincing and effective. Lastly, using the fact that phase usually conveys more information than magnitude, we use only the phase for RR quality assessment. This provides the crucial advantage of further reduction in the required amount of reference image information. The proposed method is therefore further scalable for RR scenarios. We report extensive experimental results using a total of 9 publicly available databases: 7 image (with a total of 3832 distorted images with diverse distortions) and 2 video databases (totally 228 distorted videos). These show that the proposed method is overall better than several of the existing fullreference (FR) algorithms and two RR algorithms. Additionally, there is a graceful degradation in prediction performance as the amount of reference image information is reduced thereby confirming its scalability prospects. To enable comparisons and future study, a Matlab implementation of the proposed algorithm is available at http://www.ntu.edu.sg/home/wslin/reduced_phase.rar.

  18. Measuring Quality in Online Education: A Meta-Synthesis

    Science.gov (United States)

    Esfijani, Azam

    2018-01-01

    This article presents a meta-synthesis review of quality of online education (QOE) measurement approaches. In order to survey the existing body of knowledge, a qualitative method was employed to investigate what quality of online education is comprised of and how the concept has been measured through the literature. To achieve this, a total of 112…

  19. Measuring quality of life in first-episode psychosis

    DEFF Research Database (Denmark)

    Melle, I; Friis, Svein; Haahr, U

    2005-01-01

    Quality of life (QoL) measures are increasingly recognized as necessary parts of outcome assessments in psychosis. The present paper is a comprehensive study of patients with first-episode psychosis where QoL is measured by the commonly used Lehman Quality of Life Interview (L-QoLI). The aim...

  20. A STUDY ON QUALITY ANALYSIS MEASURING PROCESS

    Directory of Open Access Journals (Sweden)

    Liliana LUCA

    2016-12-01

    Full Text Available The paper presents the results of a study concerning the use of the Ishikawa diagram in analyzing the causes that determine errors in the measuring the sizes of the pieces of machine construction field. The studied problem was "errors in the measurement process” and this constitutes the head of the Ishikawa diagram skeleton.All the possible, main and secondary causes that could generate the studied problem were identified. The paper shows the potential causes of the studied problem, which were firstly grouped in fives categories, as follows: man/people methods, machines/ measuring devices, material/ piece of measured, environment. Performing the Ishikawa diagram in a more detailed form in order to determine the potential causes of a found defect has the advantage that it offers the possibility to identify and analyze all factors, which relate to the problem studied. The paper presented a formula for the Ishikawa diagram was determined, 4M+E.

  1. Measuring Quality of Care Under Medicare and Medicaid

    OpenAIRE

    Jencks, Stephen F.

    1995-01-01

    The Health Care Financing Administration's (HCFA) approach to measuring quality of care uses an accepted definition of quality, explicit domains of measurement, and a formal validation procedure that includes face validity, construct validity, reliability, clinical validation, and tests for usefulness. The indicators of quality for Medicare and Medicaid patients span the range of service types, medical conditions, and payment systems and rest on a variety of data systems. Some have already be...

  2. A STUDY ON QUALITY ANALYSIS MEASURING PROCESS

    OpenAIRE

    Liliana LUCA

    2016-01-01

    The paper presents the results of a study concerning the use of the Ishikawa diagram in analyzing the causes that determine errors in the measuring the sizes of the pieces of machine construction field. The studied problem was "errors in the measurement process” and this constitutes the head of the Ishikawa diagram skeleton.All the possible, main and secondary causes that could generate the studied problem were identified. The paper shows the potential causes of the studied proble...

  3. Measuring environmental quality. An index of pollution

    International Nuclear Information System (INIS)

    Khanna, N.

    2000-01-01

    This paper develops an index of pollution based on the epidemiological dose-response function associated with each pollutant, and the welfare losses due to exposure to pollution. The probability of damage is translated into welfare losses, which provides the common metric required for aggregation. Isopollution surfaces may then be used to compare environmental quality over time and space. An Air Pollution Index (API) is computed using 1997 data for the criteria pollutants under the Clean Air Act (CAA). The results are compared with the EPA's Pollutant Standards Index (PSI). Two significant differences emerge: unlike the PSI, the API facilitates a detailed ranking of regions by air quality and API values may contradict PSI results. Some regions with PSI values of 100-200 are considered less polluted under the proposed methodology than those with PSI values between 50 and 100. The key reason for the difference is that PSI values are determined entirely by the gas with the highest relative concentration whereas the API value is based on the ambient concentrations of all pollutants. 14 refs

  4. The Rigor Mortis of Education: Rigor Is Required in a Dying Educational System

    Science.gov (United States)

    Mixon, Jason; Stuart, Jerry

    2009-01-01

    In an effort to answer the "Educational Call to Arms", our national public schools have turned to Advanced Placement (AP) courses as the predominate vehicle used to address the lack of academic rigor in our public high schools. Advanced Placement is believed by many to provide students with the rigor and work ethic necessary to…

  5. Trends: Rigor Mortis in the Arts.

    Science.gov (United States)

    Blodget, Alden S.

    1991-01-01

    Outlines how past art education provided a refuge for students from the rigors of other academic subjects. Observes that in recent years art education has become "discipline based." Argues that art educators need to reaffirm their commitment to a humanistic way of knowing. (KM)

  6. Photoconductivity of amorphous silicon-rigorous modelling

    International Nuclear Information System (INIS)

    Brada, P.; Schauer, F.

    1991-01-01

    It is our great pleasure to express our gratitude to Prof. Grigorovici, the pioneer of the exciting field of amorphous state by our modest contribution to this area. In this paper are presented the outline of the rigorous modelling program of the steady-state photoconductivity in amorphous silicon and related materials. (Author)

  7. Adolescent sleep quality measured during leisure activities

    Directory of Open Access Journals (Sweden)

    Kathy Sexton-Radek

    2013-07-01

    Full Text Available A one-week sleep monitoring by logs and actigraphs in preteens during summer camp was conducted. Campers aged 11-16 attended a two-week day camp that focused on the learning about science. Nine campers agreed to monitor their sleep and have their patterns explained (anonymously to other campers during the expert lecture by the author. The aim of the study was to identify the sleep quality in an adolescent group. All nine of the sleep logs and actigraphs denoted severe sleep deprivation. The findings from the logs and actigraphs denoted sever sleep deprivation. The expert lecturer provided basic information about sleep per the science designation of the day camp. A follow up session provided strategies to address sleep deprivation

  8. Measuring Quality Satisfaction with Servqual Model

    Directory of Open Access Journals (Sweden)

    Dan Păuna

    2012-05-01

    Full Text Available The orientation to customer satisfaction is not a recent phenomenon, many very successfulbusinesspeople from the beginning of the 20th century, such as Sir Henry Royce, a name synonymous withRoll – Royce vehicles, stated the first principle regarding customer satisfaction “Our interest in the Roll-Royce cars does not end at the moment when the owner pays for and takes delivery the car. Our interest in thecar never wanes. Our ambition is that every purchaser of the Rolls - Royce car shall continue to be more thansatisfied (Rolls-Royce.” The following paper tries to deal with the important qualities of the concept for themeasuring of the gap between expected costumer services satisfactions, and perceived services like a routinecustomer feedback process, by means of a relatively new model, the Servqual model.

  9. Measuring Quality and Outcomes in Sports Medicine.

    Science.gov (United States)

    Ruzbarsky, Joseph J; Marom, Niv; Marx, Robert G

    2018-07-01

    Patient-reported outcome measures (PROMs) are objective metrics critical to evaluating outcomes throughout orthopedic surgery. New instruments continue to emerge, increasing the breadth of information required for those intending to use these measures for research or clinical care. Although earlier metrics were developed using the principles of classic test theory, newer instruments constructed using item response theory are amenable to computer-adaptive testing and may change the way these instruments are administered. This article aims to define the psychometric properties that are important to understand when using all PROMs and to review the most widely used instruments in sports medicine. Copyright © 2018 Elsevier Inc. All rights reserved.

  10. Cherenkov Detector for Beam Quality Measurement

    CERN Document Server

    AUTHOR|(CDS)2078842

    2016-01-01

    A new detector to measure the machine induced background at larger radiihas been developed and installed in the CMS experiment at LHC. Itconsists of 40 modules, each comprising a quartz bar read out by aphotomultiplier. Since Cerenkov radiation is emitted in a forward conearound the charged particle trajectory, these detectors can distinguishthe directions of the machine induced background.The back-end consists of a microTCA readout with excellent time resolution.The performance of the detector modules measured in several test-beamcampaigns will be reported. The installation in CMS will be described, andfirst results about operating the detector during data taking will begiven.

  11. Conceptualizing and Measuring the Quality of Democracy: The Citizens’ Perspective

    Directory of Open Access Journals (Sweden)

    Dieter Fuchs

    2018-03-01

    Full Text Available In recent years, several measurements of the quality of democracy have been developed (e.g. Democracy Barometer, Varieties of Democracy Project. These objective measurements focus on institutional and procedural characteristics of democracy. This article starts from the premise that in order to fully understand the quality of democracy such objective measurements have to be complemented by subjective measurements based on the perspective of citizens. The aim of the article is to conceptualize and measure the subjective quality of democracy. First, a conceptualization of the subjective quality of democracy is developed consisting of citizens’ support for three normative models of democracy (electoral, liberal, and direct democracy. Second, based on the World Values Survey 2005–2007, an instrument measuring these different dimensions of the subjective quality of democracy is suggested. Third, distributions for different models of democracy are presented for some European and non-European liberal democracies. They reveal significant differences regarding the subjective quality of democracies. Fourth, the subjective quality of democracy of these countries is compared with the objective quality of democracy based on three indices (electoral democracy, liberal democracy and direct popular vote developed by the Varieties of Democracy (V-Dem Project. Finally, further research questions are discussed.

  12. Quality measures and assurance for AI (Artificial Intelligence) software

    Science.gov (United States)

    Rushby, John

    1988-01-01

    This report is concerned with the application of software quality and evaluation measures to AI software and, more broadly, with the question of quality assurance for AI software. Considered are not only the metrics that attempt to measure some aspect of software quality, but also the methodologies and techniques (such as systematic testing) that attempt to improve some dimension of quality, without necessarily quantifying the extent of the improvement. The report is divided into three parts Part 1 reviews existing software quality measures, i.e., those that have been developed for, and applied to, conventional software. Part 2 considers the characteristics of AI software, the applicability and potential utility of measures and techniques identified in the first part, and reviews those few methods developed specifically for AI software. Part 3 presents an assessment and recommendations for the further exploration of this important area.

  13. Standards for measurements and testing of wind turbine power quality

    Energy Technology Data Exchange (ETDEWEB)

    Soerensen, P [Risoe National Lab., Roskilde (Denmark); Gerdes, G; Klosse, R; Santjer, F [DEWI, Wilhelmshaven (Germany); Robertson, N; Davy, W [NEL, Glasgow (United Kingdom); Koulouvari, M; Morfiadakis, E [CRES, Pikermi (Greece); Larsson, Aa [Chalmers Univ. of Technology, Goeteborg (Sweden)

    1999-03-01

    The present paper describes the work done in power quality sub-task of the project `European Wind Turbine Testing Procedure Developments` funded by the EU SMT program. The objective of the power quality sub-task has been to make analyses and new recommendation(s) for the standardisation of measurement and verification of wind turbine power quality. The work has been organised in three major activities. The first activity has been to propose measurement procedures and to verify existing and new measurement procedures. This activity has also involved a comparison of the measurements and data processing of the participating partners. The second activity has been to investigate the influence of terrain, grid properties and wind farm summation on the power quality of wind turbines with constant rotor speed. The third activity has been to investigate the influence of terrain, grid properties and wind farm summation on the power quality of wind turbines with variable rotor speed. (au)

  14. Understanding Quality Measures in Otolaryngology–Head and Neck Surgery

    Science.gov (United States)

    Vila, Peter M.; Schneider, John S.; Piccirillo, Jay F.; Lieu, Judith E. C.

    2017-01-01

    As health care reimbursements based on pay-for-performance models become more common, there is an unprecedented demand for ways to measure health care quality and demonstrate value. Performance measures, a type of quality measure, are unique tools in a health care delivery system that allow objective monitoring of adherence to specific goals and tracking of outcomes. We sought to provide information on the development of quality measures in otolaryngology–head and neck surgery, as well as the goals of performance measurement at a national level and for our specialty. The historical development, various types, and approach to creating effective performance measures are discussed. The primary methods of developing performance measures (using clinical practice guidelines, clinical registries, and alternative methods) are also discussed. Performance measures are an important tool that can aid otolaryngologists in achieving effective, efficient, equitable, timely, safe, and patient-centered care as outlined by the Institute of Medicine. PMID:26606715

  15. Measuring patient-perceived hospital service quality: a conceptual framework.

    Science.gov (United States)

    Pai, Yogesh P; Chary, Satyanarayana T

    2016-04-18

    Purpose - Although measuring healthcare service quality is not a new phenomenon, the instruments used to measure are timeworn. With the shift in focus to patient centric processes in hospitals and recognizing healthcare to be different compared to other services, service quality measurement needs to be tuned specifically to healthcare. The purpose of this paper is to design a conceptual framework for measuring patient perceived hospital service quality (HSQ), based on existing service quality literature. Design/methodology/approach - Using HSQ theories, expanding existing healthcare service models and literature, a conceptual framework is proposed to measure HSQ. The paper outlines patient perceived service quality dimensions. Findings - An instrument for measuring HSQ dimensions is developed and compared with other service quality measuring instruments. The latest dimensions are in line with previous studies, but a relationship dimension is added. Practical implications - The framework empowers managers to assess healthcare quality in corporate, public and teaching hospitals. Originality/value - The paper helps academics and practitioners to assess HSQ from a patient perspective.

  16. Time focused measurements of roof runoff quality

    International Nuclear Information System (INIS)

    Schriewer, A.; Horn, H.; Helmreich, B.

    2008-01-01

    Runoff properties and their changes during runoff of a 14 year old zinc roof were investigated. Zinc, lead, cadmium, pH value, rain intensity and electric conductivity have been measured for a period of one year. A runoff rate of 3.73 g/m 2 a and a volume weighted mean zinc concentration of 4.9 mg/L were determined. First flush behaviour was observed in 93% of runoff events. Low rain intensities are correlating with higher zinc concentrations in runoff, whereas the duration of antecedent dry periods could not directly be linked with initial zinc concentrations

  17. Measuring quality in services for children with an intellectual disability.

    Science.gov (United States)

    Koornneef, Erik

    2006-01-01

    To evaluate the application of one particular quality measurement tool, the SERVQUAL instrument, as a potential mechanism to measure quality in services for children with disabilities Staff and family of children with an intellectual disability in two organisations providing specialist therapy and day completed an adapted SERVQUAL questionnaire. A total of 81 SERVQUAL questionnaires were distributed and 59 questionnaires were returned (response rate of 73 per cent). The SERVQUAL instrument can be considered as a useful diagnostic tool to identify particular strengths and areas for improvement in services for people with disabilities as the instrument lends itself for the monitoring of the effectiveness of quality improvement initiatives over time. The findings also showed relatively high customer expectations and the organisations involved in this research are currently not meeting all of these high expectations as significant quality gaps were found in the areas of reliability and responsiveness. The sample size was relatively small and the measurement of quality using the SERVQUAL instrument remains a challenge, due to the conceptual and empirical difficulties. The SERVQUAL instrument is probably most be attractive to service managers and funding organisations because of its ability to identify gaps in the quality of the service. The tool had been used to measure quality in services for people with disabilities and the research has shown that this tool might be an important additional quality measurement tool for services.

  18. Health Care Quality: Measuring Obesity in Performance Frameworks.

    Science.gov (United States)

    Zvenyach, Tracy; Pickering, Matthew K

    2017-08-01

    Obesity affects over one-third of Americans and leads to several chronic and costly comorbid conditions. The national movement toward value-based care calls for a refocusing of efforts to address the US obesity epidemic. To help set the stage, the current landscape of obesity-specific quality measures was evaluated. Seven quality measure databases and nine professional societies were searched. Inclusion and exclusion criteria were applied. Measures were then classified by domain and by implementation in national public programs. Eleven obesity-specific quality measures in adults were identified (nine process and two outcome). Three measures received National Quality Forum (NQF) endorsement. Two measures were actively used within Centers for Medicare and Medicaid Services (CMS) programs. Only one measure was both NQF-endorsed and used by CMS. Limitations exist with respect to obesity-specific quality metrics. Such gaps provide opportunities for obesity care specialists to engage and offer valuable insights and pragmatic approaches toward quality measurement. © 2017 The Obesity Society.

  19. More quality measures versus measuring what matters: a call for balance and parsimony.

    Science.gov (United States)

    Meyer, Gregg S; Nelson, Eugene C; Pryor, David B; James, Brent; Swensen, Stephen J; Kaplan, Gary S; Weissberg, Jed I; Bisognano, Maureen; Yates, Gary R; Hunt, Gordon C

    2012-11-01

    External groups requiring measures now include public and private payers, regulators, accreditors and others that certify performance levels for consumers, patients and payers. Although benefits have accrued from the growth in quality measurement, the recent explosion in the number of measures threatens to shift resources from improving quality to cover a plethora of quality-performance metrics that may have a limited impact on the things that patients and payers want and need (ie, better outcomes, better care, and lower per capita costs). Here we propose a policy that quality measurement should be: balanced to meet the need of end users to judge quality and cost performance and the need of providers to continuously improve the quality, outcomes and costs of their services; and parsimonious to measure quality, outcomes and costs with appropriate metrics that are selected based on end-user needs.

  20. Subjective Quality Measurement of Speech Its Evaluation, Estimation and Applications

    CERN Document Server

    Kondo, Kazuhiro

    2012-01-01

    It is becoming crucial to accurately estimate and monitor speech quality in various ambient environments to guarantee high quality speech communication. This practical hands-on book shows speech intelligibility measurement methods so that the readers can start measuring or estimating speech intelligibility of their own system. The book also introduces subjective and objective speech quality measures, and describes in detail speech intelligibility measurement methods. It introduces a diagnostic rhyme test which uses rhyming word-pairs, and includes: An investigation into the effect of word familiarity on speech intelligibility. Speech intelligibility measurement of localized speech in virtual 3-D acoustic space using the rhyme test. Estimation of speech intelligibility using objective measures, including the ITU standard PESQ measures, and automatic speech recognizers.

  1. DUQuE quality management measures: associations between quality management at hospital and pathway levels

    NARCIS (Netherlands)

    Wagner, C.; Groene, O.; Thompson, C.A.; DerSarkissian, M.; Klazinga, N.S.; Arah, O.A.; Sunol, R.

    2014-01-01

    Objective. The assessment of integral quality management (QM) in a hospital requires measurement and monitoring from different perspectives and at various levels of care delivery. Within the DUQuE project (Deepening our Understanding of Quality improvement in Europe), seven measures for QM were

  2. DUQuE quality management measures: associations between quality management at hospital and pathway levels

    NARCIS (Netherlands)

    Wagner, Cordula; Groene, Oliver; Thompson, Caroline A.; Dersarkissian, Maral; Klazinga, Niek S.; Arah, Onyebuchi A.; Suñol, Rosa; Kringos, D. S.; Lombarts, K.; Plochg, T.; Lopez, M. A.; Secanell, M.; Sunol, R.; Vallejo, P.; Bartels, P.; Kristensen, S.; Michel, P.; Saillour-Glenisson, F.; Vlcek, F.; Car, M.; Jones, S.; Klaus, E.; Garel, P.; Hanslik, K.; Saluvan, M.; Bruneau, C.; Depaigne-Loth, A.; Shaw, C.; Hammer, A.; Ommen, O.; Pfaff, H.; Groene, O.; Botje, D.; Wagner, C.; Kutaj-Wasikowska, H.; Kutryba, B.; Escoval, A.; Franca, M.; Almeman, F.; Kus, H.; Ozturk, K.; Mannion, R.; Chow, A.; Dersarkissian, M.; Thompson, C.; Wang, A.; Thompson, A.

    2014-01-01

    The assessment of integral quality management (QM) in a hospital requires measurement and monitoring from different perspectives and at various levels of care delivery. Within the DUQuE project (Deepening our Understanding of Quality improvement in Europe), seven measures for QM were developed. This

  3. DUQuE quality management measures: associations between quality management at hospital and pathway levels.

    NARCIS (Netherlands)

    Wagner, C.; Groene, O.; Thompson, C.A.; DerSarkissian, M.; Klazinga, N.S.; Arah, O.A.; Suñol, R.

    2014-01-01

    Objective: The assessment of integral quality management (QM) in a hospital requires measurement and monitoring from different perspectives and at various levels of care delivery. Within the DUQuE project (Deepening our Understanding of Quality improvement in Europe), seven measures for QM were

  4. Development and testing of a measure designed to assess the quality of care transitions

    Directory of Open Access Journals (Sweden)

    Eric A. Coleman

    2002-06-01

    Full Text Available Background: To improve the quality of care delivered to older persons receiving care across multiple settings, interventions are needed. However, the absence of a patient-centred measure specifically designed to assess this care has constrained innovation. Objective: To develop a rigorously designed and tested measure, the Care Transition Measure (CTM. Setting: A large, integrated managed care organisation in Colorado with approximately 55,000 members over the age of 65 years. Participants: Patients 65 years and older who were recently discharged from hospital and received subsequent skilled nursing care in a facility or in the home. Methods: Six focus groups of older persons and their caregivers (n=49 were established. Standard qualitative analytic techniques were applied to written transcripts and four key domains were identified: (1 information transfer; (2 patient and caregiver preparation; (3 self-management support; and (4 empowerment to assert preferences. Specific CTM items were developed, pilot tested, and refined. Psychometric testing, conducted in a different population but selected using the same entry criteria (n=60, included content and construct validity, intra-item variation, and floor/ceiling properties. Results: Older patients and clinicians found the measure to be highly relevant and comprehensive (i.e. content validity. Construct validity was assessed by comparing items from the CTM to selected items from a measure developed by Hendriks and colleagues (Medical Care 2001; 39(3: 270–283. Inter-item Spearman correlations ranged 0.388–0.594. No significant floor or ceiling effects were detected. Conclusions: The CTM was developed with substantial input from older patients and their caregivers. Psychometric testing suggested that the measure was valid. The CTM may serve to fill an important gap in health system performance evaluation by measuring the quality of care delivered across settings.

  5. Measuring the Quality of Publications : New Methodology and Case Study

    NARCIS (Netherlands)

    Kleijnen, J.P.C.; van Groenendaal, W.J.H.

    2000-01-01

    n practice, it is important to evaluate the quality of research, in order to make decisions on tenure, funding, and so on. This article develops a methodology using citations to measure the quality of journals, proceedings, and book publishers. (Citations are also used by the Science and Social

  6. Comparing Alternative Instruments to Measure Service Quality in Higher Education

    Science.gov (United States)

    Brochado, Ana

    2009-01-01

    Purpose: The purpose of this paper is to examine the performance of five alternative measures of service quality in the high education sector--service quality (SERVQUAL), importance-weighted SERVQUAL, service performance (SERVPERF), importance-weighted SERVPERF, and higher education performance (HEdPERF). Design/methodology/approach: Data were…

  7. The exploration of service quality and its measurement for private ...

    African Journals Online (AJOL)

    Kirstam

    2014-09-01

    Sep 1, 2014 ... 7The strategic importance of service excellence for service industries places the focus ... need for service quality management and measurement at PHEIs, and ... financial services, hospitality (tourism), human services, ... 1The focus of this paper was to gain insight into service quality concepts and the need.

  8. Measuring Customer Satisfaction and Quality of Service in Special Libraries.

    Science.gov (United States)

    White, Marilyn Domas; Abels, Eileen G.; Nitecki, Danuta

    This project tested the appropriateness of SERVQUAL (i.e., an instrument widely used in the service industry for assessing service quality based on repeated service encounters rather than a particular service encounter) to measure service quality in special libraries and developed a modified version for special libraries. SERVQUAL is based on an…

  9. A measuring instrument for evaluation of quality systems.

    NARCIS (Netherlands)

    Wagner, C.; Bakker, D.H. de; Groenewegen, P.P.

    1999-01-01

    Objective: To develop an instrument for provider organizations, consumers, purchasers, and policy makers to measure and compare the development of quality systems in provider organizations. Design: Cross-sectional study of provider organizations using a structured questionnaire to survey managers.

  10. 2014 Child and Adult Health Care Quality Measures

    Data.gov (United States)

    U.S. Department of Health & Human Services — Performance rates on frequently reported health care quality measures in the CMS Medicaid/CHIP Child and Adult Core Sets, for FFY 2014 reporting. Dataset contains...

  11. An evaluation of professional quality measurement systems for the ...

    African Journals Online (AJOL)

    International Journal of Engineering, Science and Technology ... An evaluation of professional quality measurement systems for the automotive industry ... The ultimate goal of this study is to get comparable quantitative information about ...

  12. 2016 Child and Adult Health Care Quality Measures

    Data.gov (United States)

    U.S. Department of Health & Human Services — Performance rates on frequently reported health care quality measures in the CMS Medicaid/CHIP Child and Adult Core Sets, for FFY 2016 reporting. Source: Mathematica...

  13. Multivariate Methods Based Soft Measurement for Wine Quality Evaluation

    Directory of Open Access Journals (Sweden)

    Shen Yin

    2014-01-01

    a decision. However, since the physicochemical indexes of wine can to some extent reflect the quality of wine, the multivariate statistical methods based soft measure can help the oenologist in wine evaluation.

  14. Image quality measurements for X-ray television chains

    International Nuclear Information System (INIS)

    Mohr, M.

    1986-01-01

    Image quality measurements were carried out for 36 television chains during 3 years. For the parameters sensitivity, resolution, contrast-detail diagram, minimal contrast and dose rate average values and experiences on their long-term stability are reported. (author)

  15. 2015 Child and Adult Health Care Quality Measures

    Data.gov (United States)

    U.S. Department of Health & Human Services — Performance rates on frequently reported health care quality measures in the CMS Medicaid/CHIP Child and Adult Core Sets, for FFY 2015 reporting. Source: Mathematica...

  16. Measuring Beam Quality of Hollow Core Photonic Crystal Fibers

    DEFF Research Database (Denmark)

    Shephard, J.D.; Roberts, John; Jones, J.D.C.

    2006-01-01

    In this paper, the authors measure the quality of the delivered beam from hollow core photonic crystal fibers (HC-PCFs). The$M^2$parameter is determined, and the near- to far-field transition is examined. The influence on these properties due to the presence of a core surround mode is evaluated.......17 for the same output beam. This highlights the need for careful consideration when measuring and describing the beam quality delivered by these novel photonic fibers....

  17. Does Input Quality Drive Measured Differences in Firm Productivity?

    DEFF Research Database (Denmark)

    Fox, Jeremy T.; Smeets, Valerie Anne Rolande

    is roughly of the same order of magnitude as some competitive effects found in the literature, but input quality measures do not explain most productivity dispersion, despite economically large production function coefficients. We find that the wage bill explains as much dispersion as human capital measures.......Firms in the same industry can differ in measured productivity by multiples of 3. Griliches (1957) suggests one explanation: the quality of inputs differs across firms. We add labor market history variables such as experience and firm and industry tenure, as well as general human capital measures...

  18. Quality measurement affecting surgical practice: Utility versus utopia.

    Science.gov (United States)

    Henry, Leonard R; von Holzen, Urs W; Minarich, Michael J; Hardy, Ashley N; Beachy, Wilbur A; Franger, M Susan; Schwarz, Roderich E

    2018-03-01

    The Triple Aim: improving healthcare quality, cost and patient experience has resulted in massive healthcare "quality" measurement. For many surgeons the origins, intent and strengths of this measurement barrage seems nebulous-though their shortcomings are noticeable. This article reviews the major organizations and programs (namely the Centers for Medicare and Medicaid Services) driving the somewhat burdensome healthcare quality climate. The success of this top-down approach is mixed, and far from convincing. We contend that the current programs disproportionately reflect the definitions of quality from (and the interests of) the national payer perspective; rather than a more balanced representation of all stakeholders interests-most importantly, patients' beneficence. The result is an environment more like performance management than one of valid quality assessment. Suggestions for a more meaningful construction of surgical quality measurement are offered, as well as a strategy to describe surgical quality from all of the stakeholders' perspectives. Our hope is to entice surgeons to engage in institution level quality improvement initiatives that promise utility and are less utopian than what is currently present. Copyright © 2017 Elsevier Inc. All rights reserved.

  19. Standard guide for making quality nondestructive assay measurements

    CERN Document Server

    American Society for Testing and Materials. Philadelphia

    2009-01-01

    1.1 This guide is a compendium of Quality Measurement Practices for performing measurements of radioactive material using nondestructive assay (NDA) instruments. The primary purpose of the guide is to assist users in arriving at quality NDA results, that is, results that satisfy the end user’s needs. This is accomplished by providing an acceptable and uniform basis for the collection, analysis, comparison, and application of data. The recommendations are not compulsory or prerequisites to achieving quality NDA measurements, but are considered contributory in most areas. 1.2 This guide applies to the use of NDA instrumentation for the measurement of nuclear materials by the observation of spontaneous or stimulated nuclear radiations, including photons, neutrons, or the flow of heat. Recommended calibration, operating, and assurance methods represent guiding principles based on current NDA technology. The diversity of industry-wide nuclear materials measurement applications and instrumentation precludes disc...

  20. 77 FR 42738 - Request for Information on Quality Measurement Enabled by Health IT

    Science.gov (United States)

    2012-07-20

    ... Information on Quality Measurement Enabled by Health IT AGENCY: Agency for Healthcare Research and Quality... diversified stakeholders (health information technology (IT) system developers, including vendors; payers... strategies and challenges regarding quality measurement enabled by health IT. Quality measurement--the...

  1. Measuring the quality of health care: state of the art.

    Science.gov (United States)

    Donaldson, M S; Nolan, K

    1997-05-01

    September 12-13, 1996, in Washington, DC, the Institute of Medicine, as part of its Special Initiative on Health Care Quality, held an invitational conference to illustrate exemplary quality measurement and to discuss the results. Patient reports, innovative uses of outcome measures for quality improvement, risk adjustment, assessment in integrated health plans and health care settings, clinical guidelines, and projects on disseminating information on quality measurement techniques and tools were among the topics represented. Brent James described studies undertaken to reduce adverse drug events (ADEs). When implementing any measurement system where error is a possible factor, it is important to emphasize identifying problems for the purpose of learning, not judgment. Lucian Leape agreed that staff involved must feel that the purpose of the study is to examine system problems, not individuals' mistakes. David Classen described a nonproprietary computerized disease-management program designed to reduce ADEs in infectious diseases. "A QUALITY VISION": Robert Brook said that the relationship between cost or resources devoted to care and quality is not well understood and is certainly not simple. He also said that although investments in measurement strategies are needed to make them better, that doesn't mean we shouldn't attempt to use the measurements we have now. Mark Chassin said that the presentations at the conference provided evidence that should allow us to conclude beyond a reasonable doubt that quality can be measured-with a degree of scientific precision equal to that of most of the measures used to take care of patients every day.

  2. Measures and Indicators of Vgi Quality: AN Overview

    Science.gov (United States)

    Antoniou, V.; Skopeliti, A.

    2015-08-01

    The evaluation of VGI quality has been a very interesting and popular issue amongst academics and researchers. Various metrics and indicators have been proposed for evaluating VGI quality elements. Various efforts have focused on the use of well-established methodologies for the evaluation of VGI quality elements against authoritative data. In this paper, a number of research papers have been reviewed and summarized in a detailed report on measures for each spatial data quality element. Emphasis is given on the methodology followed and the data used in order to assess and evaluate the quality of the VGI datasets. However, as the use of authoritative data is not always possible many researchers have turned their focus on the analysis of new quality indicators that can function as proxies for the understanding of VGI quality. In this paper, the difficulties in using authoritative datasets are briefly presented and new proposed quality indicators are discussed, as recorded through the literature review. We classify theses new indicators in four main categories that relate with: i) data, ii) demographics, iii) socio-economic situation and iv) contributors. This paper presents a dense, yet comprehensive overview of the research on this field and provides the basis for the ongoing academic effort to create a practical quality evaluation method through the use of appropriate quality indicators.

  3. MEASURES AND INDICATORS OF VGI QUALITY: AN OVERVIEW

    Directory of Open Access Journals (Sweden)

    V. Antoniou

    2015-08-01

    Full Text Available The evaluation of VGI quality has been a very interesting and popular issue amongst academics and researchers. Various metrics and indicators have been proposed for evaluating VGI quality elements. Various efforts have focused on the use of well-established methodologies for the evaluation of VGI quality elements against authoritative data. In this paper, a number of research papers have been reviewed and summarized in a detailed report on measures for each spatial data quality element. Emphasis is given on the methodology followed and the data used in order to assess and evaluate the quality of the VGI datasets. However, as the use of authoritative data is not always possible many researchers have turned their focus on the analysis of new quality indicators that can function as proxies for the understanding of VGI quality. In this paper, the difficulties in using authoritative datasets are briefly presented and new proposed quality indicators are discussed, as recorded through the literature review. We classify theses new indicators in four main categories that relate with: i data, ii demographics, iii socio-economic situation and iv contributors. This paper presents a dense, yet comprehensive overview of the research on this field and provides the basis for the ongoing academic effort to create a practical quality evaluation method through the use of appropriate quality indicators.

  4. Statistical method for quality control in presence of measurement errors

    International Nuclear Information System (INIS)

    Lauer-Peccoud, M.R.

    1998-01-01

    In a quality inspection of a set of items where the measurements of values of a quality characteristic of the item are contaminated by random errors, one can take wrong decisions which are damageable to the quality. So of is important to control the risks in such a way that a final quality level is insured. We consider that an item is defective or not if the value G of its quality characteristic is larger or smaller than a given level g. We assume that, due to the lack of precision of the measurement instrument, the measurement M of this characteristic is expressed by ∫ (G) + ξ where f is an increasing function such that the value ∫ (g 0 ) is known and ξ is a random error with mean zero and given variance. First we study the problem of the determination of a critical measure m such that a specified quality target is reached after the classification of a lot of items where each item is accepted or rejected depending on whether its measurement is smaller or greater than m. Then we analyse the problem of testing the global quality of a lot from the measurements for a example of items taken from the lot. For these two kinds of problems and for different quality targets, we propose solutions emphasizing on the case where the function ∫ is linear and the error ξ and the variable G are Gaussian. Simulation results allow to appreciate the efficiency of the different considered control procedures and their robustness with respect to deviations from the assumptions used in the theoretical derivations. (author)

  5. Onset of rigor mortis is earlier in red muscle than in white muscle.

    Science.gov (United States)

    Kobayashi, M; Takatori, T; Nakajima, M; Sakurada, K; Hatanaka, K; Ikegaya, H; Matsuda, Y; Iwase, H

    2000-01-01

    Rigor mortis is thought to be related to falling ATP levels in muscles postmortem. We measured rigor mortis as tension determined isometrically in three rat leg muscles in liquid paraffin kept at 37 degrees C or 25 degrees C--two red muscles, red gastrocnemius (RG) and soleus (SO) and one white muscle, white gastrocnemius (WG). Onset, half and full rigor mortis occurred earlier in RG and SO than in WG both at 37 degrees C and at 25 degrees C even though RG and WG were portions of the same muscle. This suggests that rigor mortis directly reflects the postmortem intramuscular ATP level, which decreases more rapidly in red muscle than in white muscle after death. Rigor mortis was more retarded at 25 degrees C than at 37 degrees C in each type of muscle.

  6. Measuring Inpatient Rehabilitation Facility Quality of Care: Discharge Self-Care Functional Status Quality Measure.

    Science.gov (United States)

    Pardasaney, Poonam K; Deutsch, Anne; Iriondo-Perez, Jeniffer; Ingber, Melvin J; McMullen, Tara

    2018-06-01

    To describe the calculation and psychometric properties of the discharge self-care functional status quality measure implemented in the Centers for Medicare & Medicaid Services' (CMS) Inpatient Rehabilitation Facility (IRF) Quality Reporting Program on October 1, 2016. Medicare fee-for-service (FFS) patients from 38 IRFs that participated in the CMS Post-Acute Care Payment Reform Demonstration were included in this cohort study. Data came from the Continuity Assessment Record and Evaluation Item Set, IRF-Patient Assessment Instrument, and Medicare claims. For each patient, we calculated an expected discharge self-care score, risk-adjusted for demographic and baseline clinical characteristics. The performance score of each IRF equaled the percentage of patient stays where the observed discharge self-care score met or exceeded the expected score. We assessed the measure's discriminatory ability across IRFs and reliability. IRFs. Medicare FFS patients aged ≥21 years (N=4769). Not applicable. Facility-level discharge self-care quality measure performance score. A total of 4769 patient stays were included; 57% of stays were in women, and 12.1% were in patients aged quality measure showed strong reliability, with intraclass correlation coefficients of .91. The discharge self-care quality measure showed strong discriminatory ability and reliability, representing an important initial step in evaluation of IRF self-care outcomes. A wide range in performance scores suggested a gap in quality of care across IRFs. Future work should include testing the measure with nationwide data from all IRFs. Published by Elsevier Inc.

  7. DUQuE quality management measures: associations between quality management at hospital and pathway levels.

    Science.gov (United States)

    Wagner, Cordula; Groene, Oliver; Thompson, Caroline A; Dersarkissian, Maral; Klazinga, Niek S; Arah, Onyebuchi A; Suñol, Rosa

    2014-04-01

    The assessment of integral quality management (QM) in a hospital requires measurement and monitoring from different perspectives and at various levels of care delivery. Within the DUQuE project (Deepening our Understanding of Quality improvement in Europe), seven measures for QM were developed. This study investigates the relationships between the various quality measures. It is a multi-level, cross-sectional, mixed-method study. As part of the DUQuE project, we invited a random sample of 74 hospitals in 7 countries. The quality managers of these hospitals were the main respondents. Furthermore, data of site visits of external surveyors assessing the participating hospitals were used. Three measures of QM at hospitals level focusing on integral systems (QMSI), compliance with the Plan-Do-Study-Act quality improvement cycle (QMCI) and implementation of clinical quality (CQII). Four measures of QM activities at care pathway level focusing on Specialized expertise and responsibility (SER), Evidence-based organization of pathways (EBOP), Patient safety strategies (PSS) and Clinical review (CR). Positive significant associations were found between the three hospitals level QM measures. Results of the relationships between levels were mixed and showed most associations between QMCI and department-level QM measures for all four types of departments. QMSI was associated with PSS in all types of departments. By using the seven measures of QM, it is possible to get a more comprehensive picture of the maturity of QM in hospitals, with regard to the different levels and across various types of hospital departments.

  8. Comparison of quality of life measures in a depressed population.

    Science.gov (United States)

    Wisniewski, Stephen R; Rush, A John; Bryan, Charlene; Shelton, Richard; Trivedi, Madhukar H; Marcus, Sheila; Husain, Mustafa M; Hollon, Steven D; Fava, Maurizio

    2007-03-01

    Measures of quality of life have been increasingly used in clinical trials. When designing a study, researchers must decide which quality of life measure to use. Some literature provides guidance through general recommendations, though lacks quantitative comparisons. In this report, 2 general quality of life measures, the 12-Item Short Form Health Survey (SF-12) and the Quality of Life Enjoyment and Satisfaction Questionnaire (Q-LES-Q), are compared in a depressed population. STAR*D data were used to analyze the associations among the SF-12 and the Q-LES-Q. Each measure covers 6 domains, overlapping on 5 (health, self-esteem/well-being, community/productivity, social/love relationships, leisure/creativity), with the SF-12 addressing family and the Q-LES-Q addressing living situations. Strong item-by-item associations exist only between the Q-LES-Q and the SF-12 physical health items. The 2 measures overlap on the domains covered while the lack of correlation between the 2 measures may be attributed to the perspective of each question as the Q-LES-Q measures satisfaction while the SF-12 measures the patient's perception of function.

  9. Experimental evaluation of rigor mortis. III. Comparative study of the evolution of rigor mortis in different sized muscle groups in rats.

    Science.gov (United States)

    Krompecher, T; Fryc, O

    1978-01-01

    The use of new methods and an appropriate apparatus has allowed us to make successive measurements of rigor mortis and a study of its evolution in the rat. By a comparative examination on the front and hind limbs, we have determined the following: (1) The muscular mass of the hind limbs is 2.89 times greater than that of the front limbs. (2) In the initial phase rigor mortis is more pronounced in the front limbs. (3) The front and hind limbs reach maximum rigor mortis at the same time and this state is maintained for 2 hours. (4) Resolution of rigor mortis is accelerated in the front limbs during the initial phase, but both front and hind limbs reach complete resolution at the same time.

  10. Evaluation of Human Prehension Using Grasp Quality Measures

    Directory of Open Access Journals (Sweden)

    Beatriz León

    2012-10-01

    Full Text Available One of the main features of the human hand is its grasping ability. Robot grasping has been studied for years and different quality measures have been proposed to evaluate the stability and manipulability of grasps. Although the human hand is obviously more complex than robot hands, the methods used in robotics might be adopted to study the human grasp. The purpose of this work is to propose a set of measures that allow the evaluation of different aspects of the human grasp. The most common robotic grasp quality measures have been adapted to the evaluation of the human hand and a new quality measure – the fatigue index – is proposed in order to incorporate the biomechanical aspect into the evaluation. The minimum set of indices that allows the evaluation of the different aspects of the grasp is obtained from the analysis of a human prehension experiment.

  11. Composite measures of watershed health from a water quality perspective.

    Science.gov (United States)

    Mallya, Ganeshchandra; Hantush, Mohamed; Govindaraju, Rao S

    2018-05-15

    Water quality data at gaging stations are typically compared with established federal, state, or local water quality standards to determine if violations (concentrations of specific constituents falling outside acceptable limits) have occurred. Based on the frequency and severity of water quality violations, risk metrics such as reliability, resilience, and vulnerability (R-R-V) are computed for assessing water quality-based watershed health. In this study, a modified methodology for computing R-R-V measures is presented, and a new composite watershed health index is proposed. Risk-based assessments for different water quality parameters are carried out using identified national sampling stations within the Upper Mississippi River Basin, the Maumee River Basin, and the Ohio River Basin. The distributional properties of risk measures with respect to water quality parameters are reported. Scaling behaviors of risk measures using stream order, specifically for the watershed health (WH) index, suggest that WH values increased with stream order for suspended sediment concentration, nitrogen, and orthophosphate in the Upper Mississippi River Basin. Spatial distribution of risk measures enable identification of locations exhibiting poor watershed health with respect to the chosen numerical standard, and the role of land use characteristics within the watershed. Copyright © 2018 Elsevier Ltd. All rights reserved.

  12. Measuring relatives’ perspectives on the quality of palliative care: the Consumer Quality Index Palliative Care.

    NARCIS (Netherlands)

    Claessen, S.J.J.; Francke, A.L.; Sixma, H.J.; Veer, A.J.E. de; Deliens, L.

    2013-01-01

    Context: A Consumer Quality Index (CQ-index) is a questionnaire assessing the actual care experiences and how important the recipient finds certain care aspects, as well as the priorities for improving quality. A CQ-index Palliative Care (CQ-index PC) for bereaved relatives was developed to measure

  13. Measuring the effect of managerial ability on earning quality

    Directory of Open Access Journals (Sweden)

    Jamal Bahri Sales

    2015-09-01

    Full Text Available This paper presents an empirical investigation to measure the effect of managerial ability on earning quality on selected firms listed on Tehran Stock Exchange over the period 2007-2013. The proposed study uses data envelopment analysis to measure the relative efficiency of selected firms where Sales is considered as output and Cost of goods (COGS, Selling, General and Administrative Expenses (SG&A, Net Property Plant and Equipment (PPE, Net operating Leases (OpsLease, Research & Development (R&D, Purchased Good will (Goodwill and Other intangible assets (OtherIntan are considered as inputs. Earning quality in this survey consists of three parts of quality of accruals, earnings and earnings forecast persistence. The results of our survey have indicated that managerial ability influences positively on earning quality.

  14. Measurement of quality in Saudi Arabian service industry

    Energy Technology Data Exchange (ETDEWEB)

    Jannadi, O.A. [King Fahd Univ. of Petroleum and Minerals, Dhahran (Saudi Arabia); Al-Saggaf, H. [SCECO-East (Saudi Arabia)

    2000-10-12

    Quality problems in the service organisation are the result of the mismatch between prior expectation and perceived quality of the service. Each organisation will attempt to determine the requirements of its customers and translate these requirements into product and delivery process specifications. This paper examines a particular electric company (SCECO-East), a typical service provider in Saudi Arabia, in which service quality is a distinguishing feature of primary importance. It describes a detailed survey and analysis in the light of the model put forward by Parasuraman et al. It utilises SERVQUAL for measuring customers' perceptions of service quality. The study revealed that SCECO-East scored high in tangibles dimension but low in features of responsiveness and reliability. In addition, while the performance of SCECO-East was acceptable to all customer categories, service quality was perceived differently by various types of customers, with reinforcement and commercial customers awarding SCECO-East even lower ratings than other customers did. (Author)

  15. Application Of Quality Function Deployment (QFD) To Measure Performance

    International Nuclear Information System (INIS)

    Fazila Said; Mohd Amirul Shafiq Shafiee; Nurul Hasanah Mohd Abd Basir

    2014-01-01

    This study aims to measure service quality performance and identify critical service quality characteristics as perceived by the customers. An integrated results survey that conducted by seven service centers that certified with Quality Management System (QMS) in Nuclear Malaysia are analysed. This is followed by constructing House of Quality (HoQ) and identifying other parameters for the Quality Function Deployment (QFD) matrix. HoQ is a simple and attractive service innovation tool which can be used to directly show comprehensive information which contained the voice of customer (VOC), technical response, technical correlation and matrix relationship. This study revealed that the information's from HoQ with further discussion on planning part which can be used to assist management in knowing the overall detail information of service center achievement and recognizes the solution for unsatisfied customer through priority improvement activity to enhance the customer satisfaction in future. (author)

  16. Quality assurance measures for spent fuel shipping and storage containers

    International Nuclear Information System (INIS)

    Droste, B.; Roedel, R.

    1987-01-01

    Quality assurance measures are to be applied in production and operation to ensure the approved fuel-element-container design specifications. The authors concentrate on the official regulations pertaining to the application of a quality assurance system, on the compliance with design specifications ensured by certified manufacturing tests and in-service inspections. For nodular-cast-iron container bodies, the authors demonstrate the procedure by presenting the contents of the materials data sheet characterizing the material, and the production and test sequence plan for container casting. In addition, they state the quality assurance requirements for interim-storage containers which transgress those stipulated for shipping containers. (orig.) [de

  17. Measurement system as a subsystem of the quality management system

    Directory of Open Access Journals (Sweden)

    Ľubica Floreková

    2006-12-01

    Full Text Available Each measurement system and a control principle must be based on certain facts about the system behaviour (what, operation (how and structure (why. Each system is distributed into subsystems that provide an input for the next subsystem. For each system, start is important the begin, that means system characteristics, collecting of data, its hierarchy and the processes distribution.A measurement system (based on the chapter 8 of the standard ISO 9001:2000 Quality management system, requirements defines the measurement, analysis and improvement for each organization in order to present the products conformity, the quality management system conformity guarantee and for the continuously permanent improvement of effectivity, efficiency and economy of quality management system.

  18. Measuring up: Implementing a dental quality measure in the electronic health record context.

    Science.gov (United States)

    Bhardwaj, Aarti; Ramoni, Rachel; Kalenderian, Elsbeth; Neumann, Ana; Hebballi, Nutan B; White, Joel M; McClellan, Lyle; Walji, Muhammad F

    2016-01-01

    Quality improvement requires using quality measures that can be implemented in a valid manner. Using guidelines set forth by the Meaningful Use portion of the Health Information Technology for Economic and Clinical Health Act, the authors assessed the feasibility and performance of an automated electronic Meaningful Use dental clinical quality measure to determine the percentage of children who received fluoride varnish. The authors defined how to implement the automated measure queries in a dental electronic health record. Within records identified through automated query, the authors manually reviewed a subsample to assess the performance of the query. The automated query results revealed that 71.0% of patients had fluoride varnish compared with the manual chart review results that indicated 77.6% of patients had fluoride varnish. The automated quality measure performance results indicated 90.5% sensitivity, 90.8% specificity, 96.9% positive predictive value, and 75.2% negative predictive value. The authors' findings support the feasibility of using automated dental quality measure queries in the context of sufficient structured data. Information noted only in free text rather than in structured data would require using natural language processing approaches to effectively query electronic health records. To participate in self-directed quality improvement, dental clinicians must embrace the accountability era. Commitment to quality will require enhanced documentation to support near-term automated calculation of quality measures. Copyright © 2016 American Dental Association. Published by Elsevier Inc. All rights reserved.

  19. In situ measurement of ceramic vacuum chamber conductive coating quality

    International Nuclear Information System (INIS)

    Doose, C.; Harkay, K.; Kim, S.; Milton, S.

    1997-01-01

    A method for measuring the relative surface resistivity and quality of conductive coatings on ceramic vacuum chambers was developed. This method is unique in that it allows one to test the coating even after the ceramic chamber is installed in the accelerator and under vacuum; furthermore, the measurement provides a localized surface reading of the coating conductance. The method uses a magnetic probe is calibrated using the measured DC end-to-end resistance of the tube under test and by comparison to a high quality test surface. The measurement method has also been verified by comparison to high frequency impedance measurements. A detailed description, results, and sensitivity of the technique are given here

  20. A Draft Conceptual Framework of Relevant Theories to Inform Future Rigorous Research on Student Service-Learning Outcomes

    Science.gov (United States)

    Whitley, Meredith A.

    2014-01-01

    While the quality and quantity of research on service-learning has increased considerably over the past 20 years, researchers as well as governmental and funding agencies have called for more rigor in service-learning research. One key variable in improving rigor is using relevant existing theories to improve the research. The purpose of this…

  1. Measuring service life and evaluating the quality of solid tires

    Directory of Open Access Journals (Sweden)

    Charoenyut Dechwayukul

    2010-08-01

    Full Text Available The objective of this research is to propose procedures for measuring service life and evaluating the quality of locallymade and used solid tires in Thailand. The solid tires were stressed and rotated until blowout on a drum-like test apparatuswhich is designed, constructed by the authors and equipped with laboratory instrumentation. Solid tires from five differentmanufacturers were selected for testing. We measured service life, length of time to tire failure, at three different loadingamplitudes and three different speeds on the testing drum. The service life of all specimens was studied and compared todetermine the possibility of using service life to evaluate the quality of a solid tire.

  2. Measuring and improving quality in university hospitals in Canada: The Collaborative for Excellence in Healthcare Quality.

    Science.gov (United States)

    Backman, Chantal; Vanderloo, Saskia; Forster, Alan John

    2016-09-01

    Measuring and monitoring overall health system performance is complex and challenging but is crucial to improving quality of care. Today's health care organizations are increasingly being held accountable to develop and implement actions aimed at improving the quality of care, reducing costs, and achieving better patient-centered care. This paper describes the development of the Collaborative for Excellence in Healthcare Quality (CEHQ), a 5-year initiative to achieve higher quality of patient care in university hospitals across Canada. This bottom-up initiative took place between 2010 and 2015, and was successful in engaging health care leaders in the development of a common framework and set of performance measures for reporting and benchmarking, as well as working on initiatives to improve performance. Despite its successes, future efforts are needed to provide clear national leadership on standards for measuring performance. Copyright © 2016 The Authors. Published by Elsevier Ireland Ltd.. All rights reserved.

  3. Quality improvement education to improve performance on ulcerative colitis quality measures and care processes aligned with National Quality Strategy priorities.

    Science.gov (United States)

    Greene, Laurence; Moreo, Kathleen

    2015-01-01

    Studies on inflammatory bowel disease (IBD) have reported suboptimal approaches to patient care. In the United States, the findings have motivated leading gastroenterology organizations to call for initiatives that support clinicians in aligning their practices with quality measures for IBD and priorities of the National Quality Strategy (NQS). We designed and implemented a quality improvement (QI) education program on ulcerative colitis in which patient charts were audited for 30 gastroenterologists before (n = 300 charts) and after (n = 290 charts) they participated in QI-focused educational activities. Charts were audited for nine measures, selected for their alignment with four NQS priorities: making care safer, ensuring patient engagement, promoting communication, and promoting effective treatment practices. Four of the measures, including guideline-directed vaccinations and assessments of disease type and activity, were part of the CMS Physician Quality Reporting System (PQRS). The other five measures involved counseling patients on various topics in ulcerative colitis management, documentation of side effects, assessment of adherence status, and simplification of dosing. The gastroenterologists also completed baseline and post-education surveys designed to assess qualitative outcomes. One of the educational interventions was a private audit feedback session conducted for each gastroenterologist. The sessions were designed to support participants in identifying measures reflecting suboptimal care quality and developing action plans for improvement. In continuous improvement cycles, follow-up interventions included QI tools and educational monographs. Across the nine chart variables, post-education improvements ranged from 0% to 48%, with a mean improvement of 15.9%. Survey findings revealed improvements in self-reported understanding of quality measures and intentions to apply them to practice, and lower rates of perceived significant barriers to high-quality

  4. Rigor in Qualitative Supply Chain Management Research

    DEFF Research Database (Denmark)

    Goffin, Keith; Raja, Jawwad; Claes, Björn

    2012-01-01

    , reliability, and theoretical saturation. Originality/value – It is the authors' contention that the addition of the repertory grid technique to the toolset of methods used by logistics and supply chain management researchers can only enhance insights and the building of robust theories. Qualitative studies......Purpose – The purpose of this paper is to share the authors' experiences of using the repertory grid technique in two supply chain management studies. The paper aims to demonstrate how the two studies provided insights into how qualitative techniques such as the repertory grid can be made more...... rigorous than in the past, and how results can be generated that are inaccessible using quantitative methods. Design/methodology/approach – This paper presents two studies undertaken using the repertory grid technique to illustrate its application in supply chain management research. Findings – The paper...

  5. Statistics for mathematicians a rigorous first course

    CERN Document Server

    Panaretos, Victor M

    2016-01-01

    This textbook provides a coherent introduction to the main concepts and methods of one-parameter statistical inference. Intended for students of Mathematics taking their first course in Statistics, the focus is on Statistics for Mathematicians rather than on Mathematical Statistics. The goal is not to focus on the mathematical/theoretical aspects of the subject, but rather to provide an introduction to the subject tailored to the mindset and tastes of Mathematics students, who are sometimes turned off by the informal nature of Statistics courses. This book can be used as the basis for an elementary semester-long first course on Statistics with a firm sense of direction that does not sacrifice rigor. The deeper goal of the text is to attract the attention of promising Mathematics students.

  6. The Aeroflex: A Bicycle for Mobile Air Quality Measurements

    Science.gov (United States)

    Elen, Bart; Peters, Jan; Van Poppel, Martine; Bleux, Nico; Theunis, Jan; Reggente, Matteo; Standaert, Arnout

    2013-01-01

    Fixed air quality stations have limitations when used to assess people's real life exposure to air pollutants. Their spatial coverage is too limited to capture the spatial variability in, e.g., an urban or industrial environment. Complementary mobile air quality measurements can be used as an additional tool to fill this void. In this publication we present the Aeroflex, a bicycle for mobile air quality monitoring. The Aeroflex is equipped with compact air quality measurement devices to monitor ultrafine particle number counts, particulate mass and black carbon concentrations at a high resolution (up to 1 second). Each measurement is automatically linked to its geographical location and time of acquisition using GPS and Internet time. Furthermore, the Aeroflex is equipped with automated data transmission, data pre-processing and data visualization. The Aeroflex is designed with adaptability, reliability and user friendliness in mind. Over the past years, the Aeroflex has been successfully used for high resolution air quality mapping, exposure assessment and hot spot identification. PMID:23262484

  7. Measuring quality of life in Macedonia - using human development indicators

    Directory of Open Access Journals (Sweden)

    Dimitar Eftimoski

    2006-12-01

    Full Text Available By the end of the 1980s, the central issue of development was focused on the growth of income and not on the growth of quality of life. Therefore, the development strategies were oriented towards production and left no significant space for improving the welfare of individuals.In the beginning of the 1990s, the human development concept emerged, stressing that economic development ultimately should result in growth of quality of life of individuals, while the goal of the development process was to expand the capabilities of individuals by placing them in the focus of the efforts for development.This paper if focused on the quality of life of the individuals. Moreover, in addition to the previous practice in Macedonia of calculating the human development index (HDI - as a measure of quality of life, an attempt will be made to calculate the humanpoverty index (HPI-2 - as a measure of non-income poverty, gender development index (GDI - as a measure of inequality between men and women, as well as the human development index at the level of aggregated urban and rural municipalities.We hope that it will contribute to the improvement of the quality of decisions made by the state and local authorities in Macedonia when it comes to issues concerning the human development.

  8. Measurement of the perceived quality of a product

    Directory of Open Access Journals (Sweden)

    Maire J.-L.

    2013-01-01

    Full Text Available For some companies, visual inspection has become an essential step when seeking to improve the quality of their products. The aim of this control is to be sure of the perceived quality of the product, which often goes well beyond the quality expected by the customer. For this type of control, the controller should be able to detect any anomaly on a product, characterize this anomaly, and then evaluate it in order to decide if the product should be accepted or rejected. This paper describes how this characterization can be carried out and, more specifically, how to measure the impact of the local environment of an anomaly on the perceived quality of the product.

  9. Measurements and prediction of inhaled air quality with personalized ventilation

    DEFF Research Database (Denmark)

    Cermak, Radim; Majer, M.; Melikov, Arsen Krikor

    2002-01-01

    the room air) at flow rates ranging from less than 5 L/s up to 23 L/s. The air quality assessment was based on temperature measurements of the inhaled air and on the portion of the personalized air inhaled. The percentage of dissatisfied with the air quality was predicted. The results suggest......This paper examines the performance of five different air terminal devices for personalized ventilation in relation to the quality of air inhaled by a breathing thermal manikin in a climate chamber. The personalized air was supplied either isothermally or non-isothermally (6 deg.C cooler than...... that regardless of the temperature combinations, personalized ventilation may decrease significantly the number of occupants dissatisfied with the air quality. Under non-isothermal conditions the percentage of dissatisfied may decrease up to 4 times....

  10. Quality and noise measurements in mobile phone video capture

    Science.gov (United States)

    Petrescu, Doina; Pincenti, John

    2011-02-01

    The quality of videos captured with mobile phones has become increasingly important particularly since resolutions and formats have reached a level that rivals the capabilities available in the digital camcorder market, and since many mobile phones now allow direct playback on large HDTVs. The video quality is determined by the combined quality of the individual parts of the imaging system including the image sensor, the digital color processing, and the video compression, each of which has been studied independently. In this work, we study the combined effect of these elements on the overall video quality. We do this by evaluating the capture under various lighting, color processing, and video compression conditions. First, we measure full reference quality metrics between encoder input and the reconstructed sequence, where the encoder input changes with light and color processing modifications. Second, we introduce a system model which includes all elements that affect video quality, including a low light additive noise model, ISP color processing, as well as the video encoder. Our experiments show that in low light conditions and for certain choices of color processing the system level visual quality may not improve when the encoder becomes more capable or the compression ratio is reduced.

  11. Measurement properties of asthma-specific quality-of-life measures: protocol for a systematic review.

    Science.gov (United States)

    Apfelbacher, Christian; Paudyal, Priya; Bülbül, Alpaslan; Smith, Helen

    2014-07-24

    Asthma is a frequent chronic inflammatory disease of the airways, and the assessment of health-related quality of life (HrQoL) is important in both research and routine care. Various asthma-specific measures of HrQoL exist but there is uncertainty which measures are best suited for use in research and routine care. Therefore, the aim of the proposed research is a comprehensive systematic assessment of the measurement properties of the existing measures that were developed to measure asthma-specific quality of life. This study is a systematic review of the measurement properties of asthma-specific measures of health-related quality of life. PubMed and Embase will be searched using a selection of relevant search terms. Eligible studies will be primary empirical studies evaluating, describing or comparing measurement properties of asthma-specific HRQL tools. Eligibility assessment and data abstraction will be performed independently by two reviewers. Evidence tables will be generated for study characteristics, instrument characteristics, measurement properties and interpretability. The quality of the measurement properties will be assessed using predefined criteria. Methodological quality of studies will be assessed using the COnsensus-based Standards for the selection of health Measurement INstruments (COSMIN) checklist. A best evidence synthesis will be undertaken if more than one study have investigated a particular measurement property. The proposed systematic review will produce a comprehensive assessment of measurement properties of existing measures of asthma-specific health-related quality of life. We also aim to derive recommendations in order to help researchers and practitioners alike in the choice of instrument. PROSPERO registration number: CRD42014010491.

  12. Experimental evaluation of rigor mortis IX. The influence of the breaking (mechanical solution) on the development of rigor mortis.

    Science.gov (United States)

    Krompecher, Thomas; Gilles, André; Brandt-Casadevall, Conception; Mangin, Patrice

    2008-04-07

    Objective measurements were carried out to study the possible re-establishment of rigor mortis on rats after "breaking" (mechanical solution). Our experiments showed that: *Cadaveric rigidity can re-establish after breaking. *A significant rigidity can reappear if the breaking occurs before the process is complete. *Rigidity will be considerably weaker after the breaking. *The time course of the intensity does not change in comparison to the controls: --the re-establishment begins immediately after the breaking; --maximal values are reached at the same time as in the controls; --the course of the resolution is the same as in the controls.

  13. Measures of quality of process models created in BPMN

    Directory of Open Access Journals (Sweden)

    Radek Hronza

    2015-12-01

    Full Text Available Description, documentation, evaluation and redesign of key processes during their execution should be an essential part of the strategic management of any organization. All organizations live in a dynamically changing environment. Therefore they must adapt its internal processes to market changes. These processes must be described. Suitable way of description could be BPMN notation. Right after description of processes via BPMN, processes should be controlled to ensure expected of their quality. System (which could be automated based on mathematical expression of qualitative characteristics of process models (i.e. measures of quality of process models can support mentioned process controls. Research team trying to design and get into practical use such a tool. The aim of this publication is description of mentioned system – based on measures of the quality of process models - and answer associated scientific questions.

  14. Results from power quality measurements in Germany - An overview

    Energy Technology Data Exchange (ETDEWEB)

    Gerdes, G.J.; Santjer, F. [German Wind Energy Inst, Wilhelmshaven (Germany)

    1996-12-31

    Grid interferences caused by wind turbines (WT) are getting a severe problem in Germany with the fast increasing number of installed turbines. The wind energy capacity was doubled annually in the past three years. The actual situation and the plannings for the next years will lead to a situation, where high wind energy penetration will exercise a big influence on the power and voltage quality of local utility networks. Measurements performed in Germany according to a national guideline show a big variety in power quality performance of WT`s, which does affect the requirements for grid connection and thus the economical situation of wind energy projects to a large extent. The results from more than 25 power quality measurements will be discussed in this paper. 5 refs., 5 figs., 1 tab.

  15. Measures to improve the quality of hotel services

    Directory of Open Access Journals (Sweden)

    Anca MADAR

    2017-07-01

    Full Text Available This article aims to exemplify how, starting from the evaluation of customer satisfaction on service quality, the hotel units’ management, can apply different measures and strategies to improve it. To achieve the target, a marketing research survey is conducted based on a sample of 120 customers of Hotel „Kronwell” at the end of 2013. After analysing customer’ responses a series of measures have been taken to improve the quality of services offered by this hotel, then at the end of 2015 a new research was achieved, based on the same questionnaire. The results of this research highlight the increasing of customer satisfaction as a result of improving the quality of hotel services, supported by growth in net profit, turnover and decrease of employees’ number.

  16. Measures of Ruleset Quality for General Rules Extraction Methods

    Czech Academy of Sciences Publication Activity Database

    Holeňa, Martin

    2009-01-01

    Roč. 50, č. 6 (2009), s. 867-879 ISSN 0888-613X R&D Projects: GA ČR GA201/08/0802 Institutional research plan: CEZ:AV0Z10300504 Keywords : rules extraction from data * quality measures * ruleset measures * ROC curves * observational logic * fuzzy logic Subject RIV: IN - Informatics, Computer Science Impact factor: 2.090, year: 2009

  17. Measurement system as a subsystem of the quality management system

    OpenAIRE

    Ľubica Floreková; Ján Terpák; Marcela Čarnogurská

    2006-01-01

    Each measurement system and a control principle must be based on certain facts about the system behaviour (what), operation (how) and structure (why). Each system is distributed into subsystems that provide an input for the next subsystem. For each system, start is important the begin, that means system characteristics, collecting of data, its hierarchy and the processes distribution.A measurement system (based on the chapter 8 of the standard ISO 9001:2000 Quality management system, requirem...

  18. Requirements for a quality measurement instrument for semantic standards

    NARCIS (Netherlands)

    Folmer, E.J.A.; Krukkert, D.; Oude Luttighuis, P.; Hillegersberg van, J. van

    2010-01-01

    This study describes requirements for an instrument to measure the quality of semantic standards. A situational requirements engineering method was used, resulting in a goal-tree in which requirements are structured. This structure shows requirements related to the input of the instrument; stating

  19. Quality measures for HRR alignment based ISAR imaging algorithms

    CSIR Research Space (South Africa)

    Janse van Rensburg, V

    2013-05-01

    Full Text Available Some Inverse Synthetic Aperture Radar (ISAR) algorithms form the image in a two-step process of range alignment and phase conjugation. This paper discusses a comprehensive set of measures used to quantify the quality of range alignment, with the aim...

  20. Measurement of Classroom Teaching Quality with Item Response Theory

    Science.gov (United States)

    Kelcey, Ben; McGinn, Daniel; Hill, Heather

    2013-01-01

    Recent policy has charged schools and districts with maintaining highly qualified teachers and differentiating among teachers in terms of their effectiveness (U.S. Department of Education, 2009). This emphasis has driven the development and implementation of teacher quality measures which are increasingly being used to evaluate teachers with…

  1. Standardized measurement of quality of life after incisional hernia repair

    DEFF Research Database (Denmark)

    Jensen, Kristian K; Henriksen, Nadia A; Harling, Henrik

    2014-01-01

    repair. The aim of this systematic review was to analyze existing standardized methods to measure quality of life after incisional hernia repair. DATA SOURCES: A PubMed and Embase search was carried out together with a cross-reference search of eligible papers, giving a total of 26 included studies...

  2. Improving Quality Of Spectrum Measurement By Event - Event Coincidence Technique

    International Nuclear Information System (INIS)

    Pham Dinh Khang; Doan Trong Thu; Nguyen Duc Hoa; Nguyen An Son; Nguyen Xuan Hai; Ho Huu Thang

    2011-01-01

    To improve the quality of measurement data for the research levels density and gamma strength function in intermediate energy region below the neutron binding energy (B n ), a new method was developed at the Dalat Nuclear Research Institute. This method improve the ratio of the count of peak per compton background more times. This results are evaluated, compared with other methods. (author)

  3. Measuring Quality in Special Libraries: Lessons from Service Marketing.

    Science.gov (United States)

    White, Marilyn Domas; Abels, Eileen G.

    1995-01-01

    Surveys the service marketing literature for models and data-gathering instruments measuring service quality, particularly the instruments SERVQUAL and SERVPERF, and assesses their applicability to special libraries and information centers. Topics include service characteristics and definitions of service; performance-minus-expectations and…

  4. Assessment of Rheumatoid Arthritis Quality Process Measures and Associated Costs.

    Science.gov (United States)

    Brady, Brenna L; Tkacz, Joseph; Meyer, Roxanne; Bolge, Susan C; Ruetsch, Charles

    2017-02-01

    The objective was to examine the relationship between health care costs and quality in rheumatoid arthritis (RA). Administrative claims were used to calculate 8 process measures for the treatment of RA. Associated health care costs were calculated for members who achieved or did not achieve each of the measures. Medical, pharmacy, and laboratory claims for RA patients (International Classification of Diseases, Ninth Revision, Clinical Modification 714.x) were extracted from the Optum Clinformatics Datamart database for 2011. Individuals were predominately female and in their mid-fifties. Measure achievement ranged from 55.9% to 80.8%. The mean cost of care for members meeting the measure was $18,644; members who did not meet the measures had a mean cost of $14,973. Primary cost drivers were pharmacy and office expenses, accounting for 42.4% and 26.3% of total costs, respectively. Regression analyses revealed statistically significant associations between biologic usage, which was more prevalent in groups attaining measures, and total expenditure across all measures (Ps < 0.001). Pharmacy costs were similar between both groups. Individuals meeting the measures had a higher proportion of costs accounted for by office visits; those not meeting the measures had a higher proportion of costs from inpatient and outpatient visits. These findings suggest that increased quality may lead to lower inpatient and outpatient hospital costs. Yet, the overall cost of RA care is likely to remain high because of intensive pharmacotherapy regimens.

  5. Sonoelasticity to monitor mechanical changes during rigor and ageing.

    Science.gov (United States)

    Ayadi, A; Culioli, J; Abouelkaram, S

    2007-06-01

    We propose the use of sonoelasticity as a non-destructive method to monitor changes in the resistance of muscle fibres, unaffected by connective tissue. Vibrations were applied at low frequency to induce oscillations in soft tissues and an ultrasound transducer was used to detect the motions. The experiments were carried out on the M. biceps femoris muscles of three beef cattle. In addition to the sonoelasticity measurements, the changes in meat during rigor and ageing were followed by measurements of both the mechanical resistance of myofibres and pH. The variations of mechanical resistance and pH were compared to those of the sonoelastic variables (velocity and attenuation) at two frequencies. The relationships between pH and velocity or attenuation and between the velocity or attenuation and the stress at 20% deformation were highly correlated. We concluded that sonoelasticity is a non-destructive method that can be used to monitor mechanical changes in muscle fibers during rigor-mortis and ageing.

  6. The air quality in Norwegian cities. Development - reasons - measures - future

    International Nuclear Information System (INIS)

    Larssen, Steinar; Hagen, Leif Otto

    1998-12-01

    There is an increasing focus on the air quality in Norwegian cities and townships. The air quality depends on several factors and the connections are complex. The aim of this report is to present a short and simple survey of this complex field. The report consists of three parts: Part 1 is a survey of the development until today. Measurements of SO 2 and soot were started in the 1950's. Systematic determinations of NO x and NO 2 , CO and particles, ozone and benzene was started during the last three decades. The population exposure to air pollutants and their main sources are described as well as the air quality in Norwegian cities compared to other cities in Europe. In part 2 developments within transport, a sector necessary for understanding the development, are described. Part 3 is a survey of forecasting the air quality in Norway, pollution warnings and surveillance. The forecasts are based on assumed developments in important sectors such as transport, energy consumption for heating and industrial purposes and the effects of demands for fuel and vehicles. Effect analyses of further measures which may be useful for reaching the national goals for the air quality are carried out. A survey of the most important limiting values and criteria as well as technical terms is presented in the report and in the appendix. The report is commissioned by the Norwegian Petroleum Institute (Norsk Petroleumsinstitutt) and the Norwegian Road Federation (Opplysningsraadet for Veitrafikken)

  7. Measuring the quality of public open space using Google Earth.

    Science.gov (United States)

    Taylor, Bronwen T; Fernando, Peter; Bauman, Adrian E; Williamson, Anna; Craig, Jonathan C; Redman, Sally

    2011-02-01

    Proximity to public open space, such as parks and other green spaces, has considerable health benefits, and people have been shown to be more likely to use such space for physical activity if it is of high quality. This paper describes a new remote-assessment approach that makes use of Google Earth Pro (the free version of this program is Google Earth) to provide rapid and inexpensive measurement of the quality of public open space. The aim of the study was to assess the correlation between assessments of the quality of public open space using (1) the remote method (making use of Google Earth Pro) and (2) direct observation with a well-established measure of quality, the Public Open Space Tool (POST). Fifty parks selected from the southwest part of Sydney, Australia, were assessed in 2009 with the remote method (using Google Earth Pro), and scores were compared with those obtained from direct observation of the same parks using POST. The time taken to conduct the assessments using each method was also recorded. Raters for each method were blind to scores obtained from using the other method. Analyses were conducted in 2009. The Spearman correlation coefficient between the quality scores obtained for the 50 parks using the remote method and direct observation was 0.9 (pspaces without the need for in-person visits, dramatically reducing the time required for environmental audits of public open space. Copyright © 2011 American Journal of Preventive Medicine. Published by Elsevier Inc. All rights reserved.

  8. MEASUREMENT OF QUALITY MANAGEMENT SYSTEM PERFORMANCE IN MEAT PROCESSING

    Directory of Open Access Journals (Sweden)

    Elena S. Voloshina

    2017-01-01

    Full Text Available Modern methods aimed to ensure the quality of foods require to implement and certify quality management systems in processing plants. In this case, to measure the effectiveness of existing QMS is often a very difficult task for the leadership due to the fragmentation of the measured metrics, or even lack thereof. This points to the relevance of the conducted research.The criteria for effectiveness assessment of the production process of meat processing plants with the use of scaling methods and Shewhart control charts are presented in the article. The authors developed and presented the formulae for the calculation of single indicators used for the further comprehensive assessment. The algorithm of statistical evaluation of the process controllability, which allows in an accessible form to estimate the statistical control of production processes and to organize statistical quality control in the development of quality management systems, is presented The proposed procedure is based on a process approach, the essence of which is the application of the Deming cycle: “Plan — Do — Check — Act”, which makes it easy to integrate it into any existing quality management system.

  9. Measuring service quality in a hospital colposcopy clinic.

    Science.gov (United States)

    Wisniewski, Mik; Wisniewski, Hazel

    2005-01-01

    The issues surrounding the measurement and provision of service quality in a health care setting are becoming increasingly important to nursing. This research study aims to apply the SERVQUAL measurement instrument in a Scottish colposcopy clinic. The study involved adapting the SERVQUAL instrument to the colposcopy setting and asking a sample of patients to complete the questionnaire. Patient expectations of service were obtained on first attendance at the clinic. Patient perceptions of service received were obtained on completion of treatment. Perceptions and expectations are then compared to identify where the largest service gaps exist. Although patient satisfaction with the overall service provided was generally high, the instrument provided evidence of where specific service improvements were needed. The largest service quality gap was for the reliability of service. The research also revealed the need for improved premises. Although the study has a limited sample size, it does appear that the SERVQUAL instrument has a useful diagnostic role to play in assessing and monitoring service quality in nursing, enabling nursing staff to identify where improvements are needed from the patients' perspective. The study has raised a number of issues which would form the basis for useful further research. Service quality from the patients' perspective should be routinely monitored and assessed. The findings should be useful to nursing staff seeking to assess, and improve, service quality.

  10. Applying revised gap analysis model in measuring hotel service quality.

    Science.gov (United States)

    Lee, Yu-Cheng; Wang, Yu-Che; Chien, Chih-Hung; Wu, Chia-Huei; Lu, Shu-Chiung; Tsai, Sang-Bing; Dong, Weiwei

    2016-01-01

    With the number of tourists coming to Taiwan growing by 10-20 % since 2010, the number has increased due to an increasing number of foreign tourists, particularly after deregulation allowed admitting tourist groups, followed later on by foreign individual tourists, from mainland China. The purpose of this study is to propose a revised gap model to evaluate and improve service quality in Taiwanese hotel industry. Thus, service quality could be clearly measured through gap analysis, which was more effective for offering direction in developing and improving service quality. The HOLSERV instrument was used to identify and analyze service gaps from the perceptions of internal and external customers. The sample for this study included three main categories of respondents: tourists, employees, and managers. The results show that five gaps influenced tourists' evaluations of service quality. In particular, the study revealed that Gap 1 (management perceptions vs. customer expectations) and Gap 9 (service provider perceptions of management perceptions vs. service delivery) were more critical than the others in affecting perceived service quality, making service delivery the main area of improvement. This study contributes toward an evaluation of the service quality of the Taiwanese hotel industry from the perspectives of customers, service providers, and managers, which is considerably valuable for hotel managers. It was the aim of this study to explore all of these together in order to better understand the possible gaps in the hotel industry in Taiwan.

  11. Workshop on measurement quality assurance for ionizing radiation: Proceedings

    Energy Technology Data Exchange (ETDEWEB)

    Heath, J.A.; Swinth, K.L. [comps.

    1993-12-31

    This workshop was held to review the status of secondary level calibration accreditation programs, review related measurement accreditation programs, document lessons learned, and to present changes in programs due to new national priorities involving radioactivity measurements. Contents include: fundamentals of measurement quality assurance (MQA), standards for MQA programs; perspectives and policies; complete MQA programs; future MQA programs; QA/QC programs--radioactivity; QA/QC programs--dosimetry; laboratory procedures for QA/QC; in-house control of reference dosimetry laboratories; in-house controls of radioactivity laboratories; and poster session. Selected papers are indexed separately for inclusion in the Energy Science and Technology Database.

  12. Workshop on measurement quality assurance for ionizing radiation: Proceedings

    International Nuclear Information System (INIS)

    Heath, J.A.; Swinth, K.L.

    1993-01-01

    This workshop was held to review the status of secondary level calibration accreditation programs, review related measurement accreditation programs, document lessons learned, and to present changes in programs due to new national priorities involving radioactivity measurements. Contents include: fundamentals of measurement quality assurance (MQA), standards for MQA programs; perspectives and policies; complete MQA programs; future MQA programs; QA/QC programs--radioactivity; QA/QC programs--dosimetry; laboratory procedures for QA/QC; in-house control of reference dosimetry laboratories; in-house controls of radioactivity laboratories; and poster session. Selected papers are indexed separately for inclusion in the Energy Science and Technology Database

  13. Measurement system with high accuracy for laser beam quality.

    Science.gov (United States)

    Ke, Yi; Zeng, Ciling; Xie, Peiyuan; Jiang, Qingshan; Liang, Ke; Yang, Zhenyu; Zhao, Ming

    2015-05-20

    Presently, most of the laser beam quality measurement system collimates the optical path manually with low efficiency and low repeatability. To solve these problems, this paper proposed a new collimated method to improve the reliability and accuracy of the measurement results. The system accuracy controlled the position of the mirror to change laser beam propagation direction, which can realize the beam perpendicularly incident to the photosurface of camera. The experiment results show that the proposed system has good repeatability and the measuring deviation of M2 factor is less than 0.6%.

  14. Quality assurance of the Brewer spectral UV measurements in Finland

    Directory of Open Access Journals (Sweden)

    K. Lakkala

    2008-06-01

    Full Text Available The quality assurance of the two Brewer spectrophotometers of the Finnish Meteorological Institute is discussed in this paper. The complete data processing chain from raw signal to high quality spectra is presented. The quality assurance includes daily maintenance, laboratory characterizations, calculation of long-term spectral responsivity, data processing and quality assessment. The cosine correction of the measurements is based on a new method, and is included in the data processing software. The results showed that the actual cosine correction factor of the two Finnish Brewers can vary between 1.08–1.13 and 1.08–1.12, respectively, depending on the sky radiance distribution and wavelength. The temperature characterization showed a linear temperature dependence between the instruments' internal temperature and the photon counts per cycle, and a temperature correction was used for correcting the measurements. The long-term spectral responsivity was calculated using the time series of several lamps using two slightly different methods. The long-term spectral responsivity was scaled to the irradiance scale of the Helsinki University of Technology (HUT for the whole of the measurement time-periods 1990–2006 and 1995–2006 for Sodankylä and Jokioinen, respectively. Both Brewers have participated in many international spectroradiometer comparisons, and have shown good stability. The differences between the Brewers and the portable reference spectroradiometer QASUME have been within 5% during 2002–2007.

  15. Assessment of quality of measurement results in interlaboratory comparisons

    International Nuclear Information System (INIS)

    Rosskopfova, O.; Matel, L.; Rajec, P.

    2009-01-01

    Testing laboratory accredited according to ISO/IEC 17025:2005 has to ensure the quality of their results. Important aspect of correct evaluation of the result is the accuracy and uncertainty. Requirement of ISO/IEC 17025:2005 is the accredited laboratories to express their results with the corresponding uncertainty. Participation of laboratories in interlaboratory comparisons provides objective evidence of the level of reliability and quality of their results. Thereby the competency of accredited laboratories verified, including the verification of the declared measurement uncertainty. Some interlaboratory comparisons in which took participation the Testing Laboratory of Radiochemical Analysis (LARCHA) are presented.

  16. Measurement of Quality of Life I. A Methodological Framework

    Directory of Open Access Journals (Sweden)

    Soren Ventegodt

    2003-01-01

    Full Text Available Despite the widespread acceptance of quality of life (QOL as the ideal guideline in healthcare and clinical research, serious conceptual and methodological problems continue to plague this area. In an attempt to remedy this situation, we propose seven criteria that a quality-of-life concept must meet to provide a sound basis for investigation by questionnaire. The seven criteria or desiderata are: (1 an explicit definition of quality of life; (2 a coherent philosophy of human life from which the definition is derived; (3 a theory that operationalizes the philosophy by specifying unambiguous, nonoverlapping, and jointly exhaustive questionnaire items; (4 response alternatives that permit a fraction-scale interpretation; (5 technical checks of reproducibility; (6 meaningfulness to investigators, respondents, and users; and (7 an overall aesthetic appeal of the questionnaire. These criteria have guided the design of a validated 5-item generic, global quality-of-life questionnaire (QOL5, and a validated 317-item generic, global quality-of-life questionnaire (SEQOL, administered to a well-documented birth cohort of 7,400 Danes born in 1959�1961, as well as to a reference sample of 2,500 Danes. Presented in outline, the underlying integrative quality-of-life (IQOL theory is a meta-theory. To illustrate the seven criteria at work, we show the extent to which they are satisfied by one of the eight component theories. Next, two sample results of our investigation are presented: satisfaction with one's sex life has the expected covariation with one's quality of life, and so does mother's smoking during pregnancy, albeit to a much smaller extent. It is concluded that the methodological framework presented has proved helpful in designing a questionnaire that is capable of yielding acceptably valid and reliable measurements of global and generic quality of life.

  17. Measuring quality of dental care: Caries prevention services for children.

    Science.gov (United States)

    Herndon, Jill Boylston; Tomar, Scott L; Catalanotto, Frank A; Rudner, Nancy; Huang, I-Chan; Aravamudhan, Krishna; Shenkman, Elizabeth A; Crall, James J

    2015-08-01

    The authors conducted a study to validate the following 3 evidence-based, process-of-care quality measures focused on dental caries prevention for children with an elevated risk of experiencing caries: sealants for 6- to 9-year-olds, sealants for 10- to 14-year-olds, and topical fluoride. Using evidence-based guidelines, the Dental Quality Alliance developed measures for implementation with administrative data at the plan and program levels. To validate the measures, the authors used data from the Florida and Texas Medicaid programs and Children's Health Insurance Programs and from national commercial dental benefit plans. Data were extracted from 414 randomly selected dental office records to validate the use of administrative data to accurately calculate the measures. The authors also assessed statistically significant variations in overall measure performance. Agreement between administrative data and dental records was 95% for sealants (κ = 0.82) and 90% for topical fluoride (κ = 0.78). Sensitivity and specificity were 90.7% and 88.5% for topical fluoride and 77.8% and 98.8% for sealants, respectively. Variation in overall measure performance was greatest for topical fluoride (χ(2) = 5,887.1; P caries received at least 2 topical fluoride applications during the reporting year. Although there was greater variation in performance for sealants for 6- to 9-year-olds (range, 21.0-31.3%; χ(2) = 548.6; P caries prevention process-of-care quality measures can be implemented feasibly and validly using administrative claims data. The measures can be used to assess, monitor, and improve the proportion of children with an elevated risk of experiencing dental caries who receive evidence-based caries prevention services. Copyright © 2015 American Dental Association. Published by Elsevier Inc. All rights reserved.

  18. Rural southeast Texas air quality measurements during the 2006 Texas Air Quality Study.

    Science.gov (United States)

    Schade, Gunnar W; Khan, Siraj; Park, Changhyoun; Boedeker, Ian

    2011-10-01

    The authors conducted air quality measurements of the criteria pollutants carbon monoxide, nitrogen oxides, and ozone together with meteorological measurements at a park site southeast of College Station, TX, during the 2006 Texas Air Quality Study II (TexAQS). Ozone, a primary focus of the measurements, was above 80 ppb during 3 days and above 75 ppb during additional 8 days in summer 2006, suggestive of possible violations of the ozone National Ambient Air Quality Standard (NAAQS) in this area. In concordance with other air quality measurements during the TexAQS II, elevated ozone mixing ratios coincided with northerly flows during days after cold front passages. Ozone background during these days was as high as 80 ppb, whereas southerly air flows generally provided for an ozone background lower than 40 ppb. Back trajectory analysis shows that local ozone mixing ratios can also be strongly affected by the Houston urban pollution plume, leading to late afternoon ozone increases of as high as 50 ppb above background under favorable transport conditions. The trajectory analysis also shows that ozone background increases steadily the longer a southern air mass resides over Texas after entering from the Gulf of Mexico. In light of these and other TexAQS findings, it appears that ozone air quality is affected throughout east Texas by both long-range and regional ozone transport, and that improvements therefore will require at least a regionally oriented instead of the current locally oriented ozone precursor reduction policies.

  19. Rigorous theory of molecular orientational nonlinear optics

    International Nuclear Information System (INIS)

    Kwak, Chong Hoon; Kim, Gun Yeup

    2015-01-01

    Classical statistical mechanics of the molecular optics theory proposed by Buckingham [A. D. Buckingham and J. A. Pople, Proc. Phys. Soc. A 68, 905 (1955)] has been extended to describe the field induced molecular orientational polarization effects on nonlinear optics. In this paper, we present the generalized molecular orientational nonlinear optical processes (MONLO) through the calculation of the classical orientational averaging using the Boltzmann type time-averaged orientational interaction energy in the randomly oriented molecular system under the influence of applied electric fields. The focal points of the calculation are (1) the derivation of rigorous tensorial components of the effective molecular hyperpolarizabilities, (2) the molecular orientational polarizations and the electronic polarizations including the well-known third-order dc polarization, dc electric field induced Kerr effect (dc Kerr effect), optical Kerr effect (OKE), dc electric field induced second harmonic generation (EFISH), degenerate four wave mixing (DFWM) and third harmonic generation (THG). We also present some of the new predictive MONLO processes. For second-order MONLO, second-order optical rectification (SOR), Pockels effect and difference frequency generation (DFG) are described in terms of the anisotropic coefficients of first hyperpolarizability. And, for third-order MONLO, third-order optical rectification (TOR), dc electric field induced difference frequency generation (EFIDFG) and pump-probe transmission are presented

  20. Measuring ICT usage quality for information society building

    DEFF Research Database (Denmark)

    Schlichter, Bjarne Rerup; Danylchenko, Lesya

    2014-01-01

    In 2003 the World Summit on Information Society made a call for measuring the state of Information Society (IS) building between countries. The purpose of the measuring was to assess and compare IS practices around the globe as well as share best practices. A number of measurement tools have sinc...... levels of ICT usage for the purpose of better policy-making, while establishing an information society, is accentuated....... these indicators on the actual levels of Information and Communication Technology (ICT) usage off the country’s stakeholders. This paper analyses the most currently used indices for measuring the state of Information Society building from the perspective of their constituent indicators. Based on the analysis......, an alternative framework for IS measurement, addressing the important aspects of ICT usage quality, is developed based on data from EU member states. By applying the framework on measuring of ICT usage quality at Romania, Cyprus and Estonia, the usefulness is tested positive, and the need to evaluate the actual...

  1. Using quality measures for quality improvement: the perspective of hospital staff.

    Directory of Open Access Journals (Sweden)

    Asgar Aghaei Hashjin

    Full Text Available RESEARCH OBJECTIVE: This study examines the perspectives of a range of key hospital staff on the use, importance, scientific background, availability of data, feasibility of data collection, cost benefit aspects and availability of professional personnel for measurement of quality indicators among Iranian hospitals. The study aims to facilitate the use of quality indicators to improve quality of care in hospitals. STUDY DESIGN: A cross-sectional study was conducted over the period 2009 to 2010. Staff at Iranian hospitals completed a self-administered questionnaire eliciting their views on organizational, clinical process, and outcome (clinical effectiveness, patient safety and patient centeredness indicators. POPULATION STUDIED: 93 hospital frontline staff including hospital/nursing managers, medical doctors, nurses, and quality improvement/medical records officers in 48 general and specialized hospitals in Iran. PRINCIPAL FINDINGS: On average, only 69% of respondents reported using quality indicators in practice at their affiliated hospitals. Respondents varied significantly in their reported use of organizational, clinical process and outcome quality indicators. Overall, clinical process and effectiveness indicators were reported to be least used. The reported use of indicators corresponded with their perceived level of importance. Quality indicators were reported to be used among clinical staff significantly more than among managerial staff. In total, 74% of the respondents reported to use obligatory indicators, while this was 68% for voluntary indicators (p<0.05. CONCLUSIONS: There is a general awareness of the importance and usability of quality indicators among hospital staff in Iran, but their use is currently mostly directed towards external accountability purposes. To increase the formative use of quality indicators, creation of a common culture and feeling of shared ownership, alongside an increased uptake of clinical process and

  2. Rigorous quantum limits on monitoring free masses and harmonic oscillators

    Science.gov (United States)

    Roy, S. M.

    2018-03-01

    There are heuristic arguments proposing that the accuracy of monitoring position of a free mass m is limited by the standard quantum limit (SQL): σ2( X (t ) ) ≥σ2( X (0 ) ) +(t2/m2) σ2( P (0 ) ) ≥ℏ t /m , where σ2( X (t ) ) and σ2( P (t ) ) denote variances of the Heisenberg representation position and momentum operators. Yuen [Phys. Rev. Lett. 51, 719 (1983), 10.1103/PhysRevLett.51.719] discovered that there are contractive states for which this result is incorrect. Here I prove universally valid rigorous quantum limits (RQL), viz. rigorous upper and lower bounds on σ2( X (t ) ) in terms of σ2( X (0 ) ) and σ2( P (0 ) ) , given by Eq. (12) for a free mass and by Eq. (36) for an oscillator. I also obtain the maximally contractive and maximally expanding states which saturate the RQL, and use the contractive states to set up an Ozawa-type measurement theory with accuracies respecting the RQL but beating the standard quantum limit. The contractive states for oscillators improve on the Schrödinger coherent states of constant variance and may be useful for gravitational wave detection and optical communication.

  3. Measuring device for water quality at reactor bottom

    Energy Technology Data Exchange (ETDEWEB)

    Urata, Hidehiro; Takagi, Jun-ichi

    1995-10-27

    The present invention concerns measurement for water quality at the bottom of a reactor of a BWR type plant, in which reactor water is sampled and analyzed in a state approximate to conditions in a pressure vessel. Based on the result, hydrogen injection amount is controlled during hydrogen injection operation. Namely, a monitor for water quality is disposed to a sampling line in communication with the bottom of a pressure vessel. A water quality monitor is disposed to a drain sampling line in communication with the bottom of the pressure vessel. A corrosion potentiometer is disposed to the pressure sampling line or the drain sampling line. A dissolved oxygen measuring device is disposed to the pressure vessel sampling line or the drain sampling line. With such a constitution, the reactor water can be sampled and analyzed in a state approximate to the conditions in the pressure vessel. In addition, signals from the water quality monitor are inputted to a hydrogen injection amount control device. As a result, the amount of hydrogen injected to primary coolants can be controlled in a state approximate to the conditions in the pressure vessel. (I.S.).

  4. Measuring device for water quality at reactor bottom

    International Nuclear Information System (INIS)

    Urata, Hidehiro; Takagi, Jun-ichi.

    1995-01-01

    The present invention concerns measurement for water quality at the bottom of a reactor of a BWR type plant, in which reactor water is sampled and analyzed in a state approximate to conditions in a pressure vessel. Based on the result, hydrogen injection amount is controlled during hydrogen injection operation. Namely, a monitor for water quality is disposed to a sampling line in communication with the bottom of a pressure vessel. A water quality monitor is disposed to a drain sampling line in communication with the bottom of the pressure vessel. A corrosion potentiometer is disposed to the pressure sampling line or the drain sampling line. A dissolved oxygen measuring device is disposed to the pressure vessel sampling line or the drain sampling line. With such a constitution, the reactor water can be sampled and analyzed in a state approximate to the conditions in the pressure vessel. In addition, signals from the water quality monitor are inputted to a hydrogen injection amount control device. As a result, the amount of hydrogen injected to primary coolants can be controlled in a state approximate to the conditions in the pressure vessel. (I.S.)

  5. Quality of life issues and measurement in patients with psoriasis

    Directory of Open Access Journals (Sweden)

    Tan X

    2012-02-01

    Full Text Available Xi Tan1, Steven R Feldman2, Rajesh Balkrishnan11Department of Clinical, Social and Administrative Sciences, College of Pharmacy, University of Michigan, Ann Arbor, MI, USA; 2Department of Dermatology, Wake Forest University School of Medicine, Winston-Salem, NC, USAAbstract: Psoriasis is a chronic immunologic disease characterized by red papules and plaques with a silver colored scale. The impact of psoriasis on patients’ overall quality of life is significant, broad, and deep, including effects on emotional wellbeing, psychological stress, self-esteem, relationship, work, social activities, financial burden, and even physical function. Although there are various measures available for assessing health-related quality of life (HRQoL in research studies, there is no consensus on which measure is best to use in clinical practice or for research comparing different treatments. Choosing treatments based on patients’ specific individual preferences, goal-orientation, and close, attentive cooperation between patients and their doctors may be an effective strategy that can be applied to improve patients’ quality of life.Keywords: treatment, health related quality of life, HRQoL

  6. How to Measure and Interpret Quality Improvement Data.

    Science.gov (United States)

    McQuillan, Rory Francis; Silver, Samuel Adam; Harel, Ziv; Weizman, Adam; Thomas, Alison; Bell, Chaim; Chertow, Glenn M; Chan, Christopher T; Nesrallah, Gihad

    2016-05-06

    This article will demonstrate how to conduct a quality improvement project using the change idea generated in "How To Use Quality Improvement Tools in Clinical Practice: How To Diagnose Solutions to a Quality of Care Problem" by Dr. Ziv Harel and colleagues in this Moving Points feature. This change idea involves the introduction of a nurse educator into a CKD clinic with a goal of increasing rates of patients performing dialysis independently at home (home hemodialysis or peritoneal dialysis). Using this example, we will illustrate a Plan-Do-Study-Act (PDSA) cycle in action and highlight the principles of rapid cycle change methodology. We will then discuss the selection of outcome, process, and balancing measures, and the practicalities of collecting these data in the clinic environment. We will also introduce the PDSA worksheet as a practical way to oversee the progress of a quality improvement project. Finally, we will demonstrate how run charts are used to visually illustrate improvement in real time, and how this information can be used to validate achievement, respond appropriately to challenges the project may encounter, and prove the significance of results. This article aims to provide readers with a clear and practical framework upon which to trial their own ideas for quality improvement in the clinical setting. Copyright © 2016 by the American Society of Nephrology.

  7. MEASURING THE DATA MODEL QUALITY IN THE ESUPPLY CHAINS

    Directory of Open Access Journals (Sweden)

    Zora Arsovski

    2012-03-01

    Full Text Available The implementation of Internet technology in business has enabled the development of e-business supply chains with large-scale information integration among all partners.The development of information systems (IS is based on the established business objectives whose achievement, among other things, directly depends on the quality of development and design of IS. In the process of analysis of the key elements of company operations in the supply chain, process model and corresponding data model are designed which should enable selection of appropriate information system architecture. The quality of the implemented information system, which supports e-supply chain, directly depends on the level of data model quality. One of the serious limitations of the data model is its complexity. With a large number of entities, data model is difficult to analyse, monitor and maintain. The problem gets bigger when looking at an integrated data model at the level of participating partners in the supply chain, where the data model usually consists of hundreds or even thousands of entities.The paper will analyse the key elements affecting the quality of data models and show their interactions and factors of significance. In addition, the paper presents various measures for assessing the quality of the data model on which it is possible to easily locate the problems and focus efforts in specific parts of a complex data model where it is not economically feasible to review every detail of the model.

  8. Measuring and Assuring the Quality of Home Health Care

    Science.gov (United States)

    Shaughnessy, Peter W.; Crisler, Kathryn S.; Schlenker, Robert E.; Arnold, Angela G.; Kramer, Andrew M.; Powell, Martha C.; Hittle, David F.

    1994-01-01

    The growth in home health care in the United States since 1970, and the exponential increase in the provision of Medicare-covered home health services over the past 5 years, underscores the critical need to assess the effectiveness of home health care in our society. This article presents conceptual and applied topics and approaches involved in assessing effectiveness through measuring the outcomes of home health care. Definitions are provided for a number of terms that relate to quality of care, outcome measures, risk adjustment, and quality assurance (QA) in home health care. The goal is to provide an overview of a potential systemwide approach to outcome-based QA that has its basis in a partnership between the home health industry and payers or regulators. PMID:10140157

  9. Rigorous force field optimization principles based on statistical distance minimization

    Energy Technology Data Exchange (ETDEWEB)

    Vlcek, Lukas, E-mail: vlcekl1@ornl.gov [Chemical Sciences Division, Geochemistry & Interfacial Sciences Group, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6110 (United States); Joint Institute for Computational Sciences, University of Tennessee, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6173 (United States); Chialvo, Ariel A. [Chemical Sciences Division, Geochemistry & Interfacial Sciences Group, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6110 (United States)

    2015-10-14

    We use the concept of statistical distance to define a measure of distinguishability between a pair of statistical mechanical systems, i.e., a model and its target, and show that its minimization leads to general convergence of the model’s static measurable properties to those of the target. We exploit this feature to define a rigorous basis for the development of accurate and robust effective molecular force fields that are inherently compatible with coarse-grained experimental data. The new model optimization principles and their efficient implementation are illustrated through selected examples, whose outcome demonstrates the higher robustness and predictive accuracy of the approach compared to other currently used methods, such as force matching and relative entropy minimization. We also discuss relations between the newly developed principles and established thermodynamic concepts, which include the Gibbs-Bogoliubov inequality and the thermodynamic length.

  10. MEASURING GROCERY STORES SERVICE QUALITY IN INDONESIA: A RETAIL SERVICE QUALITY SCALE APPROACH

    Directory of Open Access Journals (Sweden)

    Leonnard Leonnard

    2017-12-01

    Full Text Available The growing number of modern grocery stores in Indonesia is a challenge for each grocery store to maintain and increase their number of consumers. The success of maintaining and improving service quality will affect long-term profitability and business sustainability. Therefore, in this study, we examined consumer perceptions of service quality in one of modern grocery stores in Indonesia. Data were collected from 387 consumers of grocery stores in Jakarta, Bogor, Depok, Bekasi, Cibubur, and Subang. Structural Equation Modeling (SEM through Maximum likelihood and Bayesian estimation was employed to analyze the data. The finding indicated that the five indicators of the retail service quality scale consisting of physical aspects, reliability, personal interactions, problem solving and policies provided  valid multi-item instruments in measuring consumer perceptions of service quality in grocery stores.

  11. Quality assurance measures at the Geesthacht research reactor FRG-1

    International Nuclear Information System (INIS)

    Voss, J.; Krull, W.; Schmidt, K.

    1995-01-01

    The major part of the quality system for the FRG is already in practical use; other parts require extensive preparations and therefore transition periods of different lengths before they can be introduced. GKSS is aware that beside the other upgrading and refurbishment activities, these duality assurance measures will be very important in ensuring the operation of the FRG-1 research reactor over the coming 15 years or more. (orig.)

  12. Quality Measurement in the Wood Products Supply Chain

    OpenAIRE

    Espinoza, Omar Alejandro

    2009-01-01

    The purpose of this research is to learn about quality measurement practices in a wood products supply chain. According to the Supply Chain Management paradigm, companies no longer compete as individual entities, but as part of complex networks of suppliers and customers, linked together by flows of materials and information. Evidence suggests that a high degree of integration between supply chain members is essential to achieve superior market and financial performance. This study investigat...

  13. MEASURING AND MODELLING INTERNET BANKING SERVICE QUALITY IN SOUTH AFRICA

    OpenAIRE

    Redda, Ephrem Habtemichael; Surujlal, Jhalukpreya

    2017-01-01

    The purpose of this study was to develop a measuring and modelling instrument of Internet banking service quality (IBSQ) for the South African banking sector. Snowball and convenience sampling, both non-probability techniques were used to recruit participants for the study. A total of 310 Internet banking customer responses were utilised in the analysis. Using exploratory factor analysis (EFA), eight determinant factors that explained IBSQ were extracted. Following this, the study...

  14. Quality Measures for Dialysis: Time for a Balanced Scorecard.

    Science.gov (United States)

    Kliger, Alan S

    2016-02-05

    Recent federal legislation establishes a merit-based incentive payment system for physicians, with a scorecard for each professional. The Centers for Medicare and Medicaid Services evaluate quality of care with clinical performance measures and have used these metrics for public reporting and payment to dialysis facilities. Similar metrics may be used for the future merit-based incentive payment system. In nephrology, most clinical performance measures measure processes and intermediate outcomes of care. These metrics were developed from population studies of best practice and do not identify opportunities for individualizing care on the basis of patient characteristics and individual goals of treatment. The In-Center Hemodialysis (ICH) Consumer Assessment of Healthcare Providers and Systems (CAHPS) survey examines patients' perception of care and has entered the arena to evaluate quality of care. A balanced scorecard of quality performance should include three elements: population-based best clinical practice, patient perceptions, and individually crafted patient goals of care. Copyright © 2016 by the American Society of Nephrology.

  15. Does Input Quality Drive Measured Differences in Firm Productivity?

    DEFF Research Database (Denmark)

    Fox, Jeremy T.; Smeets, Valerie Anne Rolande

    2011-01-01

    One explanation for productivity dispersion is that the quality of inputs differs across firms. We add labor market history variables such as experience and firm and industry tenure, as well as general human capital measures such as schooling and sex. Adding these variables decreases the ratio...... of the 90th to 10th productivity quantiles from 3.27 to 2.68 across eight Danish manufacturing and service industries. We also use the wage bill and worker fixed effects. We find that the wage bill explains as much dispersion as human capital measures....

  16. Power quality measurement service in the support of large customers

    Energy Technology Data Exchange (ETDEWEB)

    Levesque, F. [Hydro-Quebec, Montreal, PQ (Canada)

    2006-07-01

    Power quality and how it is measured among Hydro Quebec's major customers were the focus of this conference presentation. Background information on Hydro Quebec and its customers was provided with reference to information on clients, employees and how the organization is organized. The presentation also included a discussion of power quality and how it is delivered at Hydro Quebec. For example, characteristics and target values of the voltage supplied by Hydro Quebec for high, medium and low voltages were examined. Personnel responsible for the grid have created a system to document each event submitted by customers. Documenting the actual power quality at the point of common coupling allows benchmarking of real data against announced characteristics and target values. This approach quantifies disturbances and helps to find and focus on disturbances that really influence large customers, mainly industrials. Portable and permanent installations issues were discussed followed by a discussion of a new service offering power quality metering on a regular basis. This metering service includes a complete analysis and technical support with dedicated expertise since customers are rarely fully experienced in power quality. The metering service is presented from the perspective of preventive maintenance with continuous quantification of a large number of indicators to assess the quality of the delivered power. Essential tools that customers can benefit from with this new service include real time electronic mail notification, weekly reporting and ad hoc technical support. This combination of various levels of services allows Hydro-Quebec to address the needs of these large customers in a flexible way. figs.

  17. Assuring measurement quality in person-centred healthcare

    Science.gov (United States)

    Pendrill, L. R.

    2018-03-01

    Is it realistic to aspire to the same kind of quality-assurance of measurement in person-centred care, currently being implemented in healthcare globally, as is established in the physical sciences and engineering? Ensuring metrological comparability (‘traceability’) and reliably declaring measurement uncertainty when assessing patient ability or increased social capital are however challenging for subjective measurements often characterised by large dispersion. Drawing simple analogies between ‘instruments’ in the social sciences—questionnaires, ability tests, etc—and engineering instruments such as thermometers does not go far enough. A possible way forward, apparently equally applicable to both physical and social measurement, seems to be to model inferences in terms of performance metrics of a measurement system. Person-centred care needs person-centred measurement and a full picture of the measurement process when man acts as a measurement instrument is given in the present paper. This complements previous work by presenting the process, step by step, from the observed indication (e.g. probability of success, P success, of achieving a task), through restitution with Rasch measurement theory, to the measurand (e.g. task difficulty). Rasch invariant measure theory can yield quantities—‘latent’ (or ‘explanatory’) variables such as task challenge or person ability—with characteristics akin to those of physical quantities. Metrological references for comparability via traceability and reliable estimates of uncertainty and decision risks are then in reach even for perceptive measurements (and other qualitative properties). As a case study, the person-centred measurement of cognitive ability is examined, as part of the EU project EMPIR 15HLT04 NeuroMet, for Alzheimer’s, where better analysis of correlations with brain atrophy is enabled thanks to the Rasch metrological approach.

  18. Quality assessment of solar UV irradiance measured with array spectroradiometers

    Science.gov (United States)

    Egli, Luca; Gröbner, Julian; Hülsen, Gregor; Bachmann, Luciano; Blumthaler, Mario; Dubard, Jimmy; Khazova, Marina; Kift, Richard; Hoogendijk, Kees; Serrano, Antonio; Smedley, Andrew; Vilaplana, José-Manuel

    2016-04-01

    The reliable quantification of ultraviolet (UV) radiation at the earth's surface requires accurate measurements of spectral global solar UV irradiance in order to determine the UV exposure to human skin and to understand long-term trends in this parameter. Array spectroradiometers (ASRMs) are small, light, robust and cost-effective instruments, and are increasingly used for spectral irradiance measurements. Within the European EMRP ENV03 project "Solar UV", new devices, guidelines and characterization methods have been developed to improve solar UV measurements with ASRMs, and support to the end user community has been provided. In order to assess the quality of 14 end user ASRMs, a solar UV intercomparison was held on the measurement platform of the World Radiation Center (PMOD/WRC) in Davos, Switzerland, from 10 to 17 July 2014. The results of the blind intercomparison revealed that ASRMs, currently used for solar UV measurements, show a large variation in the quality of their solar UV measurements. Most of the instruments overestimate the erythema-weighted UV index - in particular at large solar zenith angles - due to stray light contribution in the UV-B range. The spectral analysis of global solar UV irradiance further supported the finding that the uncertainties in the UV-B range are very large due to stray light contribution in this wavelength range. In summary, the UV index may be detected by some commercially available ASRMs within 5 % compared to the world reference spectroradiometer, if well characterized and calibrated, but only for a limited range of solar zenith angles. Generally, the tested instruments are not yet suitable for solar UV measurements for the entire range between 290 and 400 nm under all atmospheric conditions.

  19. A quantitative method for measuring the quality of history matches

    Energy Technology Data Exchange (ETDEWEB)

    Shaw, T.S. [Kerr-McGee Corp., Oklahoma City, OK (United States); Knapp, R.M. [Univ. of Oklahoma, Norman, OK (United States)

    1997-08-01

    History matching can be an efficient tool for reservoir characterization. A {open_quotes}good{close_quotes} history matching job can generate reliable reservoir parameters. However, reservoir engineers are often frustrated when they try to select a {open_quotes}better{close_quotes} match from a series of history matching runs. Without a quantitative measurement, it is always difficult to tell the difference between a {open_quotes}good{close_quotes} and a {open_quotes}better{close_quotes} matches. For this reason, we need a quantitative method for testing the quality of matches. This paper presents a method for such a purpose. The method uses three statistical indices to (1) test shape conformity, (2) examine bias errors, and (3) measure magnitude of deviation. The shape conformity test insures that the shape of a simulated curve matches that of a historical curve. Examining bias errors assures that model reservoir parameters have been calibrated to that of a real reservoir. Measuring the magnitude of deviation assures that the difference between the model and the real reservoir parameters is minimized. The method was first tested on a hypothetical model and then applied to published field studies. The results showed that the method can efficiently measure the quality of matches. It also showed that the method can serve as a diagnostic tool for calibrating reservoir parameters during history matching.

  20. Integration of the effects of air quality measures in the SOLVE mix of measures

    International Nuclear Information System (INIS)

    Hesselmans, T.; Heijnis, F.

    2008-01-01

    SOLVE is the Dutch abbreviation for fast solutions for air and traffic and is a website by means of which provinces and municipalities in the Netherlands can gain insight into the best measures for traffic to improve the quality of the ambient air. Since halfway June 2008, the effects on air quality of approximately 35 traffic measures were included in the SOLVE mix of measures. The effects of traffic measures on emissions of particulate matter and nitrogen dioxide have been calculated. The effects are expressed in a decrease of the contribution of traffic indicated in a scale from A (very large decrease) to E (no decrease). The outcome depends on the location where the measure is implemented. [mk] [nl

  1. Data Quality Assurance for Supersonic Jet Noise Measurements

    Science.gov (United States)

    Brown, Clifford A.; Henderson, Brenda S.; Bridges, James E.

    2010-01-01

    The noise created by a supersonic aircraft is a primary concern in the design of future high-speed planes. The jet noise reduction technologies required on these aircraft will be developed using scale-models mounted to experimental jet rigs designed to simulate the exhaust gases from a full-scale jet engine. The jet noise data collected in these experiments must accurately predict the noise levels produced by the full-scale hardware in order to be a useful development tool. A methodology has been adopted at the NASA Glenn Research Center s Aero-Acoustic Propulsion Laboratory to insure the quality of the supersonic jet noise data acquired from the facility s High Flow Jet Exit Rig so that it can be used to develop future nozzle technologies that reduce supersonic jet noise. The methodology relies on mitigating extraneous noise sources, examining the impact of measurement location on the acoustic results, and investigating the facility independence of the measurements. The methodology is documented here as a basis for validating future improvements and its limitations are noted so that they do not affect the data analysis. Maintaining a high quality jet noise laboratory is an ongoing process. By carefully examining the data produced and continually following this methodology, data quality can be maintained and improved over time.

  2. Rigor or mortis: best practices for preclinical research in neuroscience.

    Science.gov (United States)

    Steward, Oswald; Balice-Gordon, Rita

    2014-11-05

    Numerous recent reports document a lack of reproducibility of preclinical studies, raising concerns about potential lack of rigor. Examples of lack of rigor have been extensively documented and proposals for practices to improve rigor are appearing. Here, we discuss some of the details and implications of previously proposed best practices and consider some new ones, focusing on preclinical studies relevant to human neurological and psychiatric disorders. Copyright © 2014 Elsevier Inc. All rights reserved.

  3. Air quality measurements in urban green areas - a case study

    Science.gov (United States)

    Kuttler, W.; Strassburger, A.

    The influence of traffic-induced pollutants (e.g. CO, NO, NO 2 and O 3) on the air quality of urban areas was investigated in the city of Essen, North Rhine-Westphalia (NRW), Germany. Twelve air hygiene profile measuring trips were made to analyse the trace gas distribution in the urban area with high spatial resolution and to compare the air hygiene situation of urban green areas with the overall situation of urban pollution. Seventeen measurements were made to determine the diurnal concentration courses within urban parks (summer conditions: 13 measurements, 530 30 min mean values, winter conditions: 4 measurements, 128 30 min mean values). The measurements were carried out during mainly calm wind and cloudless conditions between February 1995 and March 1996. It was possible to establish highly differentiated spatial concentration patterns within the urban area. These patterns were correlated with five general types of land use (motorway, main road, secondary road, residential area, green area) which were influenced to varying degrees by traffic emissions. Urban parks downwind from the main emission sources show the following typical temporal concentration courses: In summer rush-hour-dependent CO, NO and NO 2 maxima only occurred in the morning. A high NO 2/NO ratio was established during weather conditions with high global radiation intensities ( K>800 W m -2), which may result in a high O 3 formation potential. Some of the values measured found in one of the parks investigated (Gruga Park, Essen, area: 0.7 km 2), which were as high as 275 μg m -3 O 3 (30-min mean value) were significantly higher than the German air quality standard of 120 μg m -3 (30-min mean value, VDI Guideline 2310, 1996) which currently applies in Germany and about 20% above the maximum values measured on the same day by the network of the North Rhine-Westphalian State Environment Agency. In winter high CO and NO concentrations occur in the morning and during the afternoon rush-hour. The

  4. Effectiveness of local air quality measures; Effectiviteit van likale luchtkwaliteitsmaatregelen

    Energy Technology Data Exchange (ETDEWEB)

    Van Bommel, R.; Van de Poll, T. [Royal Haskoning DHV, Amersfoort (Netherlands)

    2013-12-15

    This article examines the effects of local air quality measures which are calculated by order of the city of Utrecht. The conclusions are that environmental zones and other local measures contribute to meet the targets and improve public health. It is also explained why this is the case, and the question is raised whether or not national measures would be better [Dutch] Dit artikel gaat in op de effecten van lokale maatregelen die zijn berekend in opdracht van de gemeente Utrecht. De conclusie: milieuzones en andere lokale maatregelen dragen bij aan het halen van normen en leveren gezondheidswinst op. Er wordt uitgelegd waarom dat zo is en de vraag wordt gesteld of landelijke maatregelen niet beter zijn.

  5. Measuring Effectiveness of Food Quality Management in the Bakery Sector

    NARCIS (Netherlands)

    Spiegel, van der M.; Luning, P.A.; Boer, de W.J.; Ziggers, G.W.; Jongen, W.M.F.

    2006-01-01

    Inappropriate management of food production operations cause several quality performance problems. Therefore, the actual contribution of food quality management to quality performance has to be revealed. This article investigates the effectiveness of food quality management in the bakery sector.

  6. Use of Smart Sensors in the Measurement of Power Quality

    Directory of Open Access Journals (Sweden)

    A. Moreno-Muñoz

    2008-03-01

    Full Text Available Today’s businesses depend heavily on electrical services for lighting, general power, computer hardware and communications hardware. With the generalized use of sophisticated electronic devices, industries are shifting toward almost entirely electronic IT systems. PQ events are of increasing concern for the economy because today’s equipment, particularly computers and automated manufacturing devices, is highly sensitive to such imperfections. Traditionally the control and supervision of a plant distribution network has mainly been focused on the protection of the network. Relatively little attention has been focused on the quality of the electrical energy. Metering technologies and communications systems have advanced to enable the development of web-based sensors. Power Quality is one area where these smart sensors can be very valuable. This paper investigates the challenges and possibilities in the development of distributed PQ measurement systems. This paper describes the challenges and lessons learned from this work.

  7. Mapping service quality : measuring and comparing quality of experience and quality of service for Internet-based map services

    OpenAIRE

    Eriksén, Sara; Eliasson, Charlott; Fiedler, Markus; Chevul, Stefan; Ekelin, Annelie

    2007-01-01

    In this paper, we present an on-going research project in which we are focusing on examining how users of map-based services on-line experience the quality of these services when the traffic load is high, and how the users' experiences of acceptable or not acceptable quality can be related to measurable parameters which can be used to manage network traffic and improve technical solutions. The project is a multi- and interdisciplinary project in cooperation between researchers within human wo...

  8. Software support for environmental measurement in quality at educational institutions

    Directory of Open Access Journals (Sweden)

    Alena Pauliková

    2016-03-01

    Full Text Available The analysed theme of this article is based on the training of environmental measurements for workplaces. This is very important for sustainable quality in technical educational institutions. Applied kinds of software, which are taught at technical educational institutions, have to offer the professional and methodical knowledge concerning conditions of working ambient for students of selected technical specialisations. This skill is performed in such a way that the graduates, after entering the practical professional life, will be able to participate in solutions for actual problems that are related to environmental protection by means of software support. Nowadays, during the training processit is also obligatory to introduce technical science. Taking into consideration the above-mentioned facts it is possible to say that information technology support for environmental study subjects is a relevant aspect, which should be integrated into the university educational process. There is an effective progress that further highlights the focus on the quality of university education not only for environmental engineers. Actual trends require an increasing number of software/hardware educated engineers who can participate in qualitative university preparation, i.e.IT environmentalists. The Department of Environmental Engineering at the Faculty of Mechanical Engineering, TechnicalUniversity in Košice, Slovakia is an institution specified and intended for quality objectivisation. This institution introduced into the study programmes (“Environmental Management” and “Technology of Environmental Protection” study subjects with the software support, which are oriented towards outdoor and indoor ambient and in this way the Department of Process and Environmental Engineering is integrated effectively and intensively into the area of measurement training with regard to the requirement of quality educational processes.

  9. Integral Criteria for Measuring the Quality of Teacher Evaluation

    Directory of Open Access Journals (Sweden)

    Olga Navickienė

    2012-07-01

    Full Text Available Purpose—To construct the knowledge evaluation quality integral criteria, which allows to ascertain whether the different teachers properly assess the students’ knowledge. The criteria has been tested setting up the educational experiment and examining the six mathematics lecturers’ assessments.Design/methodology/approach—This research involved the Mykolas Romeris University students of Public Administration degree second year and Management of Organizations degree first year. The test questions for students were designed using the mathematical knowledge assessment information system, which allows for closed-ended mathematical test, to obtain statistical data about test takers, to perform quality analysis of the test; in the middle and the end of the semester.Findings—The construction technique for the evaluation quality criteria of the students’ working results assessment, which were performed by six different lecturers, during practical trainings, seminars, laboratory and other sessions is proposed in this article.Research limitations/implications—The constructed evaluation criteria is universal: it does not depend on the particular subject; it can be applied to several groups, courses or lecturers. It depends on three calculated indicators I, S, K, which show in two ways obtained estimates of the measured information compatibility of degrees, marks matching and correlation terms.Practical implications—The integral criteria has been tested examining the six mathematics lecturers’ assessments.Originality/Value—Constructing the criteria have been used the educational measurement models of authors of this article and other researchers, however its’ connection to general (integral criteria, best of authors’ knowledge, is original and have not be researched before.Keywords: knowledge evaluation, quality of teacher evaluation, evaluation of teachers, mathematical modeling.Research type: research paper.

  10. Air Quality Science and Regulatory Efforts Require Geostationary Satellite Measurements

    Science.gov (United States)

    Pickering, Kenneth E.; Allen, D. J.; Stehr, J. W.

    2006-01-01

    Air quality scientists and regulatory agencies would benefit from the high spatial and temporal resolution trace gas and aerosol data that could be provided by instruments on a geostationary platform. More detailed time-resolved data from a geostationary platform could be used in tracking regional transport and in evaluating mesoscale air quality model performance in terms of photochemical evolution throughout the day. The diurnal cycle of photochemical pollutants is currently missing from the data provided by the current generation of atmospheric chemistry satellites which provide only one measurement per day. Often peak surface ozone mixing ratios are reached much earlier in the day during major regional pollution episodes than during local episodes due to downward mixing of ozone that had been transported above the boundary layer overnight. The regional air quality models often do not simulate this downward mixing well enough and underestimate surface ozone in regional episodes. Having high time-resolution geostationary data will make it possible to determine the magnitude of this lower-and mid-tropospheric transport that contributes to peak eight-hour average ozone and 24-hour average PM2.5 concentrations. We will show ozone and PM(sub 2.5) episodes from the CMAQ model and suggest ways in which geostationary satellite data would improve air quality forecasting. Current regulatory modeling is typically being performed at 12 km horizontal resolution. State and regional air quality regulators in regions with complex topography and/or land-sea breezes are anxious to move to 4-km or finer resolution simulations. Geostationary data at these or finer resolutions will be useful in evaluating such models.

  11. Autonomous Quality Control of Joint Orientation Measured with Inertial Sensors

    Directory of Open Access Journals (Sweden)

    Karina Lebel

    2016-07-01

    Full Text Available Clinical mobility assessment is traditionally performed in laboratories using complex and expensive equipment. The low accessibility to such equipment, combined with the emerging trend to assess mobility in a free-living environment, creates a need for body-worn sensors (e.g., inertial measurement units—IMUs that are capable of measuring the complexity in motor performance using meaningful measurements, such as joint orientation. However, accuracy of joint orientation estimates using IMUs may be affected by environment, the joint tracked, type of motion performed and velocity. This study investigates a quality control (QC process to assess the quality of orientation data based on features extracted from the raw inertial sensors’ signals. Joint orientation (trunk, hip, knee, ankle of twenty participants was acquired by an optical motion capture system and IMUs during a variety of tasks (sit, sit-to-stand transition, walking, turning performed under varying conditions (speed, environment. An artificial neural network was used to classify good and bad sequences of joint orientation with a sensitivity and a specificity above 83%. This study confirms the possibility to perform QC on IMU joint orientation data based on raw signal features. This innovative QC approach may be of particular interest in a big data context, such as for remote-monitoring of patients’ mobility.

  12. Developing optimized CT scan protocols: Phantom measurements of image quality

    International Nuclear Information System (INIS)

    Zarb, Francis; Rainford, Louise; McEntee, Mark F.

    2011-01-01

    Purpose: The increasing frequency of computerized tomography (CT) examinations is well documented, leading to concern about potential radiation risks for patients. However, the consequences of not performing the CT examination and missing injuries and disease are potentially serious, impacting upon correct patient management. The ALARA principle of dose optimization must be employed for all justified CT examinations. Dose indicators displayed on the CT console as either CT dose index (CTDI) and/or dose length product (DLP), are used to indicate dose and can quantify improvements achieved through optimization. Key scan parameters contributing to dose have been identified in previous literature and in previous work by our group. The aim of this study was to optimize the scan parameters of mA; kV and pitch, whilst maintaining image quality and reducing dose. This research was conducted using psychophysical image quality measurements on a CT quality assurance (QA) phantom establishing the impact of dose optimization on image quality parameters. Method: Current CT scan parameters for head (posterior fossa and cerebrum), abdomen and chest examinations were collected from 57% of CT suites available nationally in Malta (n = 4). Current scan protocols were used to image a Catphan 600 CT QA phantom whereby image quality was assessed. Each scan parameter: mA; kV and pitch were systematically reduced until the contrast resolution (CR), spatial resolution (SR) and noise were significantly lowered. The Catphan 600 images, produced by the range of protocols, were evaluated by 2 expert observers assessing CR, SR and noise. The protocol considered as the optimization threshold was just above the setting that resulted in a significant reduction in CR and noise but not affecting SR at the 95% confidence interval. Results: The limit of optimization threshold was determined for each CT suite. Employing optimized parameters, CTDI and DLP were both significantly reduced (p ≤ 0.001) by

  13. An instrument for X-ray set quality assurance measurements

    International Nuclear Information System (INIS)

    Willetts, R.J.; West, M.B.; Brydon, J.

    1989-01-01

    This paper describes a prototype electronic instrument for performing quality assurance (QA) measurements on diagnostic radiological equipment with a view to long-term performance assessment on a Regional basis. The instrument is based on a Tandy 200 laptop computer and has been developed primarily to include the assessment of image intensifier/TV systems in a general QA package. It is capable of accepting signals from the following sources: (1) a radiation detector (diode array); (2) a Keithley kV divider (Keithley Instruments, Inc.); (3) the video output of an image intensifier system. (author)

  14. Empowering smartphone users with sensor node for air quality measurement

    Science.gov (United States)

    Oletic, Dinko; Bilas, Vedran

    2013-06-01

    We present an architecture of a sensor node developed for use with smartphones for participatory sensing of air quality in urban environments. Our solution features inexpensive metal-oxide semiconductor gas sensors (MOX) for measurement of CO, O3, NO2 and VOC, along with sensors for ambient temperature and humidity. We focus on our design of sensor interface consisting of power-regulated heater temperature control, and the design of resistance sensing circuit. Accuracy of the sensor interface is characterized. Power consumption of the sensor node is analysed. Preliminary data obtained from the CO gas sensors in laboratory conditions and during the outdoor field-test is shown.

  15. Empowering smartphone users with sensor node for air quality measurement

    International Nuclear Information System (INIS)

    Oletic, Dinko; Bilas, Vedran

    2013-01-01

    We present an architecture of a sensor node developed for use with smartphones for participatory sensing of air quality in urban environments. Our solution features inexpensive metal-oxide semiconductor gas sensors (MOX) for measurement of CO, O 3 , NO 2 and VOC, along with sensors for ambient temperature and humidity. We focus on our design of sensor interface consisting of power-regulated heater temperature control, and the design of resistance sensing circuit. Accuracy of the sensor interface is characterized. Power consumption of the sensor node is analysed. Preliminary data obtained from the CO gas sensors in laboratory conditions and during the outdoor field-test is shown.

  16. An Analysis of FM Jamming and Noise Quality Measures

    Science.gov (United States)

    1993-12-01

    equipment setup is shown in figure 6. For reasons of practicality and manageability , all equipment was chosen to be commercially available and of a fairly...bins based on the size of the parameter F. It computes a smoothed "Turner Noise Qaulity " similar to the noise quality measure employed by Daly in his...recý.orate for :nf-,aton Doe,A-,ým5 1o- A c-t•s. )2 15 efferso Oarts H,9gPay, Srte 1204. ArtOngton, VA 222024302 and to the Of"ce of Management and aucige

  17. Ensuring suitable quality of clinical measurements through design.

    Science.gov (United States)

    Orzechowski, Anthony; Petrides, Victoria; Scopp, Richard

    2018-04-17

    To design and deliver high quality, safe and effective products, manufacturers of in vitro diagnostic (IVD) products follow a structured, traceable process for controlling the uncertainty of results reported from their measurement systems. This process and its results however, are not often shared in detail with those outside of the manufacturing company. The objective of this paper is to facilitate discussion by describing some of the best practices used during the IVD design and development process, highlighting some design challenges manufacturers face, and to offer ideas for how IVD manufacturers and laboratories could work together to drive further improvement to public health. Copyright © 2018. Published by Elsevier Inc.

  18. BIAS IN THE MEASUREMENT OF QUALITY OF LIFE: RESPONSE SHIFT

    Directory of Open Access Journals (Sweden)

    Yesim SENOL

    2006-10-01

    Full Text Available Quality of Life (QoL is a descriptive term that refers to people’s emotional, social and physical wellbeing, and their ability to function in the ordinary task of living. The importance of QoL makes it critical to improve and refine measure to understand patients’ experience of health, illness and treatment. However individuals change with time and the basis on which they make a QoL judgment may also change, a phenomenon increasingly referred to as response shift. The definition of response shift is recalibration of internal standards of measurement and reconceptualization of the meaning of item. The purpose of study is to discuss the effects of response shift bias. [TAF Prev Med Bull 2006; 5(5.000: 382-389

  19. Some comments on rigorous quantum field path integrals in the analytical regularization scheme

    Energy Technology Data Exchange (ETDEWEB)

    Botelho, Luiz C.L. [Universidade Federal Fluminense (UFF), Niteroi, RJ (Brazil). Dept. de Matematica Aplicada]. E-mail: botelho.luiz@superig.com.br

    2008-07-01

    Through the systematic use of the Minlos theorem on the support of cylindrical measures on R{sup {infinity}}, we produce several mathematically rigorous path integrals in interacting euclidean quantum fields with Gaussian free measures defined by generalized powers of the Laplacian operator. (author)

  20. Some comments on rigorous quantum field path integrals in the analytical regularization scheme

    International Nuclear Information System (INIS)

    Botelho, Luiz C.L.

    2008-01-01

    Through the systematic use of the Minlos theorem on the support of cylindrical measures on R ∞ , we produce several mathematically rigorous path integrals in interacting euclidean quantum fields with Gaussian free measures defined by generalized powers of the Laplacian operator. (author)

  1. Measurement properties of adult quality-of-life measurement instruments for eczema: a systematic review.

    Science.gov (United States)

    Heinl, D; Prinsen, C A C; Deckert, S; Chalmers, J R; Drucker, A M; Ofenloch, R; Humphreys, R; Sach, T; Chamlin, S L; Schmitt, J; Apfelbacher, C

    2016-03-01

    The Harmonising Outcome Measures for Eczema (HOME) initiative has identified quality of life (QoL) as a core outcome domain to be evaluated in every eczema trial. It is unclear which of the existing QoL instruments is most appropriate for this domain. Thus, the aim of this review was to systematically assess the measurement properties of existing measurement instruments developed and/or validated for the measurement of QoL in adult eczema. We conducted a systematic literature search in PubMed and Embase identifying studies on measurement properties of adult eczema QoL instruments. For all eligible studies, we assessed the adequacy of the measurement properties and the methodological quality with the COnsensus-based Standards for the selection of health Measurement INstruments (COSMIN) checklist. A best evidence synthesis summarizing findings from different studies was the basis to assign four degrees of recommendation (A-D). A total of 15 articles reporting on 17 instruments were included. No instrument fulfilled the criteria for category A. Six instruments were placed in category B, meaning that they have the potential to be recommended depending on the results of further validation studies. Three instruments had poor adequacy in at least one required adequacy criterion and were therefore put in category C. The remaining eight instruments were minimally validated and were thus placed in category D. Currently, no QoL instrument can be recommended for use in adult eczema. The Quality of Life Index for Atopic Dermatitis (QoLIAD) and the Dermatology Life Quality Index (DLQI) are recommended for further validation research. © 2015 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.

  2. Long persistence of rigor mortis at constant low temperature.

    Science.gov (United States)

    Varetto, Lorenzo; Curto, Ombretta

    2005-01-06

    We studied the persistence of rigor mortis by using physical manipulation. We tested the mobility of the knee on 146 corpses kept under refrigeration at Torino's city mortuary at a constant temperature of +4 degrees C. We found a persistence of complete rigor lasting for 10 days in all the cadavers we kept under observation; and in one case, rigor lasted for 16 days. Between the 11th and the 17th days, a progressively increasing number of corpses showed a change from complete into partial rigor (characterized by partial bending of the articulation). After the 17th day, all the remaining corpses showed partial rigor and in the two cadavers that were kept under observation "à outrance" we found the absolute resolution of rigor mortis occurred on the 28th day. Our results prove that it is possible to find a persistence of rigor mortis that is much longer than the expected when environmental conditions resemble average outdoor winter temperatures in temperate zones. Therefore, this datum must be considered when a corpse is found in those environmental conditions so that when estimating the time of death, we are not misled by the long persistence of rigor mortis.

  3. Rigorous solution to Bargmann-Wigner equation for integer spin

    CERN Document Server

    Huang Shi Zhong; Wu Ning; Zheng Zhi Peng

    2002-01-01

    A rigorous method is developed to solve the Bargamann-Wigner equation for arbitrary integer spin in coordinate representation in a step by step way. The Bargmann-Wigner equation is first transformed to a form easier to solve, the new equations are then solved rigorously in coordinate representation, and the wave functions in a closed form are thus derived

  4. Using grounded theory as a method for rigorously reviewing literature

    NARCIS (Netherlands)

    Wolfswinkel, J.; Furtmueller-Ettinger, Elfriede; Wilderom, Celeste P.M.

    2013-01-01

    This paper offers guidance to conducting a rigorous literature review. We present this in the form of a five-stage process in which we use Grounded Theory as a method. We first probe the guidelines explicated by Webster and Watson, and then we show the added value of Grounded Theory for rigorously

  5. Evaluating Rigor in Qualitative Methodology and Research Dissemination

    Science.gov (United States)

    Trainor, Audrey A.; Graue, Elizabeth

    2014-01-01

    Despite previous and successful attempts to outline general criteria for rigor, researchers in special education have debated the application of rigor criteria, the significance or importance of small n research, the purpose of interpretivist approaches, and the generalizability of qualitative empirical results. Adding to these complications, the…

  6. Cumulative sum quality control for calibrated breast density measurements

    International Nuclear Information System (INIS)

    Heine, John J.; Cao Ke; Beam, Craig

    2009-01-01

    Purpose: Breast density is a significant breast cancer risk factor. Although various methods are used to estimate breast density, there is no standard measurement for this important factor. The authors are developing a breast density standardization method for use in full field digital mammography (FFDM). The approach calibrates for interpatient acquisition technique differences. The calibration produces a normalized breast density pixel value scale. The method relies on first generating a baseline (BL) calibration dataset, which required extensive phantom imaging. Standardizing prospective mammograms with calibration data generated in the past could introduce unanticipated error in the standardized output if the calibration dataset is no longer valid. Methods: Sample points from the BL calibration dataset were imaged approximately biweekly over an extended timeframe. These serial samples were used to evaluate the BL dataset reproducibility and quantify the serial calibration accuracy. The cumulative sum (Cusum) quality control method was used to evaluate the serial sampling. Results: There is considerable drift in the serial sample points from the BL calibration dataset that is x-ray beam dependent. Systematic deviation from the BL dataset caused significant calibration errors. This system drift was not captured with routine system quality control measures. Cusum analysis indicated that the drift is a sign of system wear and eventual x-ray tube failure. Conclusions: The BL calibration dataset must be monitored and periodically updated, when necessary, to account for sustained system variations to maintain the calibration accuracy.

  7. Cumulative sum quality control for calibrated breast density measurements

    Energy Technology Data Exchange (ETDEWEB)

    Heine, John J.; Cao Ke; Beam, Craig [Cancer Prevention and Control Division, Moffitt Cancer Center, 12902 Magnolia Drive, Tampa, Florida 33612 (United States); Division of Epidemiology and Biostatistics, School of Public Health, University of Illinois at Chicago, 1603 W. Taylor St., Chicago, Illinois 60612 (United States)

    2009-12-15

    Purpose: Breast density is a significant breast cancer risk factor. Although various methods are used to estimate breast density, there is no standard measurement for this important factor. The authors are developing a breast density standardization method for use in full field digital mammography (FFDM). The approach calibrates for interpatient acquisition technique differences. The calibration produces a normalized breast density pixel value scale. The method relies on first generating a baseline (BL) calibration dataset, which required extensive phantom imaging. Standardizing prospective mammograms with calibration data generated in the past could introduce unanticipated error in the standardized output if the calibration dataset is no longer valid. Methods: Sample points from the BL calibration dataset were imaged approximately biweekly over an extended timeframe. These serial samples were used to evaluate the BL dataset reproducibility and quantify the serial calibration accuracy. The cumulative sum (Cusum) quality control method was used to evaluate the serial sampling. Results: There is considerable drift in the serial sample points from the BL calibration dataset that is x-ray beam dependent. Systematic deviation from the BL dataset caused significant calibration errors. This system drift was not captured with routine system quality control measures. Cusum analysis indicated that the drift is a sign of system wear and eventual x-ray tube failure. Conclusions: The BL calibration dataset must be monitored and periodically updated, when necessary, to account for sustained system variations to maintain the calibration accuracy.

  8. Comparing definitions of outpatient surgery: Implications for quality measurement.

    Science.gov (United States)

    Mull, Hillary J; Rivard, Peter E; Legler, Aaron; Pizer, Steven D; Hawn, Mary T; Itani, Kamal M F; Rosen, Amy K

    2017-08-01

    Adverse event (AE) rates in outpatient surgery are inconsistently reported, partly because of the lack of a standard definition of outpatient surgery. We compared the types and rates of surgical procedures defined by two national healthcare agencies: Health Care Cost Institute (HCCI) and the Healthcare Cost and Utilization Project (HCUP) and considered implications for quality measurement. We used HCCI and HCUP definitions to identify FY2012-14 VA outpatient surgeries. There were six times as many HCCI surgeries as HCUP (6,575,830 versus 1,086,640). Ninety-nine percent of HCUP-defined surgeries were also identified by HCCI. More HCUP surgeries had higher average Medicare Relative Value Units then HCCI surgeries [5.3 (SD = 4.4) versus 1.6 (SD = 2.3) RVUs]. Rates and types of procedures vary widely between definitions. Quality measurement using HCCI versus HCUP may produce significantly lower AE rates because many of the surgeries included reflect low complexity and potentially low risk of AEs. Published by Elsevier Inc.

  9. Quality Assurance of Rice and Paddy Moisture Measurements in Thailand

    Science.gov (United States)

    Sinhaneti, T.; Keawprasert, T.; Puuntharo, P.; Triarun, W.

    2017-10-01

    A bilateral comparison in moisture measurement between the National Institute of Metrology Thailand (NIMT) and the Central Bureau of Weights and Measures (CBWM) was organized for quality assuring of rice and paddy moisture measurement in Thailand. The bilateral comparison was conducted by using the same batch of sample and moisture meter as transfer device. It consisted of two parts: moisture measurement in rice and in paddy. A rice moisture meter belonging to CBWM and rice standards prepared at the nominal moisture content of 10 %, 12 %, 14 % and 16 % at NIMT, were used for rice moisture comparison, while a paddy moisture meter belonging to NIMT and paddy standards prepared at the nominal moisture content of 12 %, 14 %, 16 % and 18 % at CBWM, were used for paddy moisture comparison. Both laboratories measured the moisture content of a sample by using the standard method in ISO 712 and used that sample to calibrate a moisture meter by means of the method based on ISO 7700-1. Since the moisture content of the sample can change during the comparison, correction values in moisture content between the standard value and the reading value from the moisture meter are used as calibration results for the comparison evaluation. For the rice moisture comparison, differences in the correction value measured by the two laboratories vary from 0.18 % to 0.46 %, with their combined comparison uncertainty of 0.37 % (k= 2). The main contribution to the difference comes from the standard values from both laboratories differing from 0.27 % to 0.53 %, as the rice standard was found to drift in moisture content less than 0.05 %. Similarly to the rice moisture comparison, differences in the correction value for the paddy moisture measurement range from 0.08 % to 0.56 % with the combined comparison uncertainty of 0.38 % (k = 2), whereas the stability in moisture content of the paddy sample at NIMT was found to be within 0.12 %.

  10. Is There a Correlation Between Infection Control Performance and Other Hospital Quality Measures?

    Science.gov (United States)

    O'Hara, Lyndsay M; Morgan, Daniel J; Pineles, Lisa; Li, Shanshan; Sulis, Carol; Bowling, Jason; Drees, Marci; Jacob, Jesse T; Anderson, Deverick J; Warren, David K; Harris, Anthony D

    2017-06-01

    Quality measures are increasingly reported by hospitals to the Centers for Medicare and Medicaid Services (CMS), yet there may be tradeoffs in performance between infection control (IC) and other quality measures. Hospitals that performed best on IC measures did not perform well on most CMS non-IC quality measures. Infect Control Hosp Epidemiol 2017;38:736-739.

  11. Experimental evaluation of rigor mortis. VII. Effect of ante- and post-mortem electrocution on the evolution of rigor mortis.

    Science.gov (United States)

    Krompecher, T; Bergerioux, C

    1988-01-01

    The influence of electrocution on the evolution of rigor mortis was studied on rats. Our experiments showed that: (1) Electrocution hastens the onset of rigor mortis. After an electrocution of 90 s, a complete rigor develops already 1 h post-mortem (p.m.) compared to 5 h p.m. for the controls. (2) Electrocution hastens the passing of rigor mortis. After an electrocution of 90 s, the first significant decrease occurs at 3 h p.m. (8 h p.m. in the controls). (3) These modifications in rigor mortis evolution are less pronounced in the limbs not directly touched by the electric current. (4) In case of post-mortem electrocution, the changes are slightly less pronounced, the resistance is higher and the absorbed energy is lower as compared with the ante-mortem electrocution cases. The results are completed by two practical observations on human electrocution cases.

  12. Damage measurement of structural material by electron backscatter diffraction. Quantification of measurement quality toward standardization of measurement procedure

    International Nuclear Information System (INIS)

    Kamaya, Masayuki

    2011-01-01

    Several attempts have been made to assess the damage induced in materials by crystal orientation distributions identified using electron backscatter diffraction (EBSD). In particular, the local misorientation, which is the misorientation between neighboring measurement points, was shown to correlate well with the degree of material damage such as plastic strain, fatigue and creep. However, the damage assessments conducted using the local misorientations were qualitative rather than quantitative. The local misorientation can be correlated theoretically with physical parameters such as dislocation density. However, the error in crystal orientation measurements makes quantitative evaluation of the local misorientation difficult. Furthermore, the local misorientation depends on distance between the measurement points (step size). For a quantitative assessment of the local misorientation, the error in the crystal orientation measurements must be reduced or the degree of error must be shown quantitatively. In this study, first, the influence of the quality of measurements (accuracy of measurements) and step size on the local misorientation was investigated using stainless steel specimens damaged by tensile deformation or fatigue. By performing the crystal orientation measurements with different conditions, it was shown that the quality of measurement could be represented by the error index, which was previously proposed by the author. Secondly, a filtering process was applied in order to improve the accuracy of crystal orientation measurements and its effect was investigated using the error index. It was revealed that the local misorientations obtained under different measurement conditions could be compared quantitatively only when the error index and the step size were almost or exactly the same. It was also shown that the filtering process could successfully reduce the measurement error and step size dependency of the local misorientations. By applying the filtering

  13. Network Compression as a Quality Measure for Protein Interaction Networks

    Science.gov (United States)

    Royer, Loic; Reimann, Matthias; Stewart, A. Francis; Schroeder, Michael

    2012-01-01

    With the advent of large-scale protein interaction studies, there is much debate about data quality. Can different noise levels in the measurements be assessed by analyzing network structure? Because proteomic regulation is inherently co-operative, modular and redundant, it is inherently compressible when represented as a network. Here we propose that network compression can be used to compare false positive and false negative noise levels in protein interaction networks. We validate this hypothesis by first confirming the detrimental effect of false positives and false negatives. Second, we show that gold standard networks are more compressible. Third, we show that compressibility correlates with co-expression, co-localization, and shared function. Fourth, we also observe correlation with better protein tagging methods, physiological expression in contrast to over-expression of tagged proteins, and smart pooling approaches for yeast two-hybrid screens. Overall, this new measure is a proxy for both sensitivity and specificity and gives complementary information to standard measures such as average degree and clustering coefficients. PMID:22719828

  14. A quality measurement study of a diagnostic x-ray

    International Nuclear Information System (INIS)

    Nishitani, Motohiro; Fujimoto, Nobuhisa; Yamada, Katsuhiko

    1982-01-01

    It is important to check periodically the quality and quantity of the X-rays emitted, in order to obtain the best possible performance from your diagnostic X-ray apparatus. The best way of checking the exact quality of the X-ray is to measure the spectrum of the X-ray, but it is not an easy task to carry out. The second way is to plot the attenuation curve of the X-rays. We have developed a method to plot the attenuation curve by a single exposure, utilizing J.r. Greening's empirical formula. The output of the three cavity ionization chambers, one with 7 mmAl filter, another with a 3 mmAl and the third without any filter, exposed to the same X-ray, were put into a microcomputer. The programming was arranged to display the attenuation curve of the X-rays, effective energy of the X-rays, the 1st HVL and the 2nd HVL on the CRT. The attenuation curves of the X-rays, emitted at a tube voltage at between 60 and 140 kV obtained by this method, agreed with the experimental results with an error of +-4 %. The effective energy obtained by this method agreed with the experimental data with an error of +-1 %. (author)

  15. Identifying shortcomings in the measurement of service quality.

    Science.gov (United States)

    Fogarty, G; Catts, R; Forlin, C

    2000-01-01

    SERVPEFR, the performance component of the Service Quality Scale (SERVQUAL), has been shown to measure five underlying dimensions corresponding to Tangibles, Reliability, Responsiveness, Assurance, and Empathy (Parasuraman, Zeithaml, & Berry, 1988). This paper describes three separate studies employing SERVPERF in an Australian context. In the first of these studies (N = 113), a shortened 15-item version of the SERVPERF scale (SERVPERF-R) was found to be suitable for use in an Australian small business setting. A five-factor structure was identifiable but the factors were highly correlated, suggesting that they were not clearly distinct. The tendency for marked negative skewness observed by other researchers was also noted here. A follow-up study involving three other small businesses (N = 212) used Rasch analysis to test assumptions about the spread of items on the underlying continuum. These analyses indicated that there is an even, though narrow, spread of items across the continuum. The Rasch analysis suggested that the items in both SERVPERF and SERVPERF-R are too easy to rate highly and that more "difficult" items need to be added to the scale. The third study (N = 122) was conducted using a version of SERVPERF-R that included seven new items intended to extend the range of the scale. The new items, however, did not achieve this desirable outcome. The implications for service quality assessment are discussed.

  16. Improving regional variation using quality of care measures

    Directory of Open Access Journals (Sweden)

    Scott A Berkowitz

    2009-11-01

    Full Text Available Scott A Berkowitz1, Gary Gerstenblith1, Robert Herbert2, Gerard Anderson1,21Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA; 2Center for Hospital Finance and Management, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USAAbstract: There is significant regional variability in the quality of care provided in the United States. This article compares regional performance for three measures that focus on transitions in care, and the care of patients with multiple conditions. Admissions for people with ambulatory care-sensitive conditions, hospital readmissions within 30 days of discharge, and compliance with practice guidelines for people with three chronic conditions (congestive heart failure, chronic obstructive pulmonary disease, and diabetes were analyzed using data drawn from the Centers for Medicare & Medicaid Services’ Standard Analytic Files for 5% of a 2004 national sample of Medicare beneficiaries which was divided by hospital referral regions and regional performance. There were significant regional differences in performance which we hypothesize could be improved through better care coordination and system management.Keywords: performance, quality, chronic condition, ambulatory care, sensitive conditions, readmissions

  17. Measurement quality assurance for beta particle calibrations at NIST

    International Nuclear Information System (INIS)

    Soares, C.G.; Pruitt, J.S.

    1993-01-01

    Standardized beta-particle fields have been established in an international standard and have been adopted for use in several U.S. dosimeter and instrument testing standards. Calibration methods and measurement quality assurance procedures employed at the National Institute of Standards and Technology (NIST) for beta-particle calibrations in these reference fields are discussed. The calibration facility including the NIST-automated extrapolation ionization chamber is described, and some sample results of calibrations are shown. Methods for establishing and maintaining traceability to NIST of secondary laboratories are discussed. Currently, there are problems in finding a good method for routine testing of traceability to NIST. Some examples of past testing methods are given and solutions to this problem are proposed

  18. Measurement quality assurance for beta particle calibrations at NIST

    Energy Technology Data Exchange (ETDEWEB)

    Soares, C.G.; Pruitt, J.S. [National Institute of Standards and Technology, Gaithersburg, MD (United States)

    1993-12-31

    Standardized beta-particle fields have been established in an international standard and have been adopted for use in several U.S. dosimeter and instrument testing standards. Calibration methods and measurement quality assurance procedures employed at the National Institute of Standards and Technology (NIST) for beta-particle calibrations in these reference fields are discussed. The calibration facility including the NIST-automated extrapolation ionization chamber is described, and some sample results of calibrations are shown. Methods for establishing and maintaining traceability to NIST of secondary laboratories are discussed. Currently, there are problems in finding a good method for routine testing of traceability to NIST. Some examples of past testing methods are given and solutions to this problem are proposed.

  19. Quality testing as a reserve for rationalization measures

    International Nuclear Information System (INIS)

    Babic, H.G.

    1979-01-01

    The increase in large-scale planning activities and their realization in all fields of quality testing as opposed to the requirements for a reduction of costs emphasizes the necessity of rationaling measures. Especially during the planning phases there are a number of possibilities for solving this problem: the determination of reference dates for production devices based on the preparation of dates with regard to machines and testing, the assignment of the testing frequency in dependence of the quotient from deviations in production and characteristics tolerances, the application of methods of operation planning following different priority rules. Apart from already existing systems for normal and computeraided planning of testing material application by the help of which the most optimal testing material is selected for certain testing jobs systematic representations and programs for the planning of the testing procedure and the testing precision will enrich the joint complex of the organization of testing procedures. (orig./RW) [de

  20. Influence of Continuing Medical Education on Rheumatologists? Performance on National Quality Measures for Rheumatoid Arthritis

    OpenAIRE

    Sapir, Tamar; Rusie, Erica; Greene, Laurence; Yazdany, Jinoos; Robbins, Mark L.; Ruderman, Eric M.; Carter, Jeffrey D.; Patel, Barry; Moreo, Kathleen

    2015-01-01

    Introduction: In recent years researchers have reported deficits in the quality of care provided to patients with rheumatoid arthritis (RA), including low rates of performance on quality measures. We sought to determine the influence of a quality improvement (QI) continuing education program on rheumatologists’ performance on national quality measures for RA, along with other measures aligned with National Quality Strategy priorities. Performance was assessed through baseline and post-educati...

  1. Improving Oncology Quality Measurement in Accountable Care: Filling Gaps with Cross-Cutting Measures.

    Science.gov (United States)

    Valuck, Tom; Blaisdell, David; Dugan, Donna P; Westrich, Kimberly; Dubois, Robert W; Miller, Robert S; McClellan, Mark

    2017-02-01

    each gap, we searched for available measures not already being used in programs. Where existing measures did not cover gaps, we recommended refinements to existing measures or proposed measures for development. We shared the results of the measure gap analysis with a roundtable of national experts in cancer care and oncology measurement. During a web meeting and an in-person meeting, the roundtable reviewed the gap analysis and identified priority opportunities for improving measurement. The group determined that overreliance on condition-specific process measures is problematic because of rapidly changing evidence and increasing personalization of cancer care. The group's primary recommendation for enhancing measure sets was to prioritize and develop effective cross-cutting measures that assess clinical and patient-reported outcomes, including shared decision making, care planning, and symptom control. The group also prioritized certain safety and structural measures to complement condition-specific process measures. Further, the group explored strategies for using clinical pathways and devising layered measurement approaches to improve measurement for accountable care. This article presents the roundtable's conclusions and recommendations for next steps. Funding for this project was provided by the National Pharmaceutical Council (NPC). Westrich and Dubois are employees of the NPC. Valuck is a partner with Discern Health. Blaisdell and Dugan are employed by Discern Health. McClellan reports fees for serving on the Johnson & Johnson Board of Directors. Dugan reports consulting fees from the National Committee for Quality Assurance and Pharmacy Quality Alliance. The remaining authors report no relationship or financial interest with any entity that would pose a conflict of interest with the subject matter of this article. Study concept and design were contributed by Blaisdell, Valuck, Dugan, and Westrich. Blaisdell took the lead in data collection, along with Valuck

  2. Objective image quality parameters of relevance in practice, measured for film-screen combinations - a contribution to quality assurance activities

    International Nuclear Information System (INIS)

    Angerstein, W.; Wolf, M.

    1986-01-01

    Objective measurement of the physico-technical parameters determining the image quality is the fastest and most accurate method of quality testing of the systems. The parameters in case of X-ray intensifying screens are imaging quality, servicable life, and mechanical properties. (orig./DG) [de

  3. Quality assurance for radioactive measurement in nuclear medicine

    International Nuclear Information System (INIS)

    2006-01-01

    The field of nuclear medicine continues to grow around the world, owing in part to a number of successful programmes carried out by the IAEA to enhance the use of nuclear medicine techniques in Member States. The implementation of quality assurance (QA) programmes to ensure the safe application of radiopharmaceuticals has, however, been variable in many Member States. One possible reason is the lack of a unified set of principles regarding the establishment of such programmes. This publication addresses the issue of QA programmes for radioactivity measurement in nuclear medicine. A group of experts consulted by the IAEA recommended in 2002 that unified principles concerning QA and quality control (QC) procedures for the measurement of radioactivity in nuclear medicine be developed because of its importance in controlling the safety and effectiveness of the use of radiopharmaceuticals. This publication is the result of advice provided to the IAEA by experts in the fields of radionuclide metrology, medical physics and radiopharmacy. This report can be considered to be a more detailed and updated version of IAEA-TECDOC-602, Quality Control of Nuclear Medicine Instruments, published in 1991. Advances in the field of nuclear instrumentation since that report was published, particularly in imaging, and the increased emphasis on QA and QC prompted the need for an update. Moreover, it was realized that the activity measurement and imaging aspects had each become so specialized as to be better treated in separate publications. The present report focuses on the factors affecting radioactivity measurement and the implementation of QA and QC programmes to ensure accurate and consistent results. The IAEA has developed a safety standard on The Management System for Facilities and Activities (IAEA Safety Standards Series No. GS-R-3), which replaces the IAEA publications on QA issued as Safety Series No. 50-C/SG-Q (1996). In GS-R-3, the management system is described as a set of

  4. Water Quality Index for measuring drinking water quality in rural Bangladesh: a cross-sectional study.

    Science.gov (United States)

    Akter, Tahera; Jhohura, Fatema Tuz; Akter, Fahmida; Chowdhury, Tridib Roy; Mistry, Sabuj Kanti; Dey, Digbijoy; Barua, Milan Kanti; Islam, Md Akramul; Rahman, Mahfuzar

    2016-02-09

    Public health is at risk due to chemical contaminants in drinking water which may have immediate health consequences. Drinking water sources are susceptible to pollutants depending on geological conditions and agricultural, industrial, and other man-made activities. Ensuring the safety of drinking water is, therefore, a growing problem. To assess drinking water quality, we measured multiple chemical parameters in drinking water samples from across Bangladesh with the aim of improving public health interventions. In this cross-sectional study conducted in 24 randomly selected upazilas, arsenic was measured in drinking water in the field using an arsenic testing kit and a sub-sample was validated in the laboratory. Water samples were collected to test water pH in the laboratory as well as a sub-sample of collected drinking water was tested for water pH using a portable pH meter. For laboratory testing of other chemical parameters, iron, manganese, and salinity, drinking water samples were collected from 12 out of 24 upazilas. Drinking water at sample sites was slightly alkaline (pH 7.4 ± 0.4) but within acceptable limits. Manganese concentrations varied from 0.1 to 5.5 mg/L with a median value of 0.2 mg/L. The median iron concentrations in water exceeded WHO standards (0.3 mg/L) at most of the sample sites and exceeded Bangladesh standards (1.0 mg/L) at a few sample sites. Salinity was relatively higher in coastal districts. After laboratory confirmation, arsenic concentrations were found higher in Shibchar (Madaripur) and Alfadanga (Faridpur) compared to other sample sites exceeding WHO standard (0.01 mg/L). Of the total sampling sites, 33 % had good-quality water for drinking based on the Water Quality Index (WQI). However, the majority of the households (67 %) used poor-quality drinking water. Higher values of iron, manganese, and arsenic reduced drinking water quality. Awareness raising on chemical contents in drinking water at household level is required to

  5. The effect of temperature on the mechanical aspects of rigor mortis in a liquid paraffin model.

    Science.gov (United States)

    Ozawa, Masayoshi; Iwadate, Kimiharu; Matsumoto, Sari; Asakura, Kumiko; Ochiai, Eriko; Maebashi, Kyoko

    2013-11-01

    Rigor mortis is an important phenomenon to estimate the postmortem interval in forensic medicine. Rigor mortis is affected by temperature. We measured stiffness of rat muscles using a liquid paraffin model to monitor the mechanical aspects of rigor mortis at five temperatures (37, 25, 10, 5 and 0°C). At 37, 25 and 10°C, the progression of stiffness was slower in cooler conditions. At 5 and 0°C, the muscle stiffness increased immediately after the muscles were soaked in cooled liquid paraffin and then muscles gradually became rigid without going through a relaxed state. This phenomenon suggests that it is important to be careful when estimating the postmortem interval in cold seasons. Copyright © 2013 Elsevier Ireland Ltd. All rights reserved.

  6. National Quality Forum Colon Cancer Quality Metric Performance: How Are Hospitals Measuring Up?

    Science.gov (United States)

    Mason, Meredith C; Chang, George J; Petersen, Laura A; Sada, Yvonne H; Tran Cao, Hop S; Chai, Christy; Berger, David H; Massarweh, Nader N

    2017-12-01

    To evaluate the impact of care at high-performing hospitals on the National Quality Forum (NQF) colon cancer metrics. The NQF endorses evaluating ≥12 lymph nodes (LNs), adjuvant chemotherapy (AC) for stage III patients, and AC within 4 months of diagnosis as colon cancer quality indicators. Data on hospital-level metric performance and the association with survival are unclear. Retrospective cohort study of 218,186 patients with resected stage I to III colon cancer in the National Cancer Data Base (2004-2012). High-performing hospitals (>75% achievement) were identified by the proportion of patients achieving each measure. The association between hospital performance and survival was evaluated using Cox shared frailty modeling. Only hospital LN performance improved (15.8% in 2004 vs 80.7% in 2012; trend test, P fashion [0 metrics, reference; 1, hazard ratio (HR) 0.96 (0.89-1.03); 2, HR 0.92 (0.87-0.98); 3, HR 0.85 (0.80-0.90); 2 vs 1, HR 0.96 (0.91-1.01); 3 vs 1, HR 0.89 (0.84-0.93); 3 vs 2, HR 0.95 (0.89-0.95)]. Performance on metrics in combination was associated with lower risk of death [LN + AC, HR 0.86 (0.78-0.95); AC + timely AC, HR 0.92 (0.87-0.98); LN + AC + timely AC, HR 0.85 (0.80-0.90)], whereas individual measures were not [LN, HR 0.95 (0.88-1.04); AC, HR 0.95 (0.87-1.05)]. Less than half of hospitals perform well on these NQF colon cancer metrics concurrently, and high performance on individual measures is not associated with improved survival. Quality improvement efforts should shift focus from individual measures to defining composite measures encompassing the overall multimodal care pathway and capturing successful transitions from one care modality to another.

  7. College Readiness in California: A Look at Rigorous High School Course-Taking

    Science.gov (United States)

    Gao, Niu

    2016-01-01

    Recognizing the educational and economic benefits of a college degree, education policymakers at the federal, state, and local levels have made college preparation a priority. There are many ways to measure college readiness, but one key component is rigorous high school coursework. California has not yet adopted a statewide college readiness…

  8. A case study on measuring process quality : lessons learned

    NARCIS (Netherlands)

    Dikici, A.; Türetken, O.; Demirors, O.; Cortellessa, V.; Muccini, H.; Demirors, O.

    2012-01-01

    Requiring solid engineering disciplines and best practices rather than human talents for developing complex software systems results an increasing interest in software processes. The quality of software processes has considerable influence over the success of an organization. Process quality

  9. Indoor air quality in cold climates: hazards and abatement measures

    National Research Council Canada - National Science Library

    Walkinshaw, D. S

    1986-01-01

    The first APCA Conference on Indoor Air Quality, held April 29, 30 and May 1, 1985 in Ottawa, featured some 67 presentations covering many aspects of indoor air quality, with the focus on cold climate...

  10. Composite measures of watershed health from a water quality perspective

    Science.gov (United States)

    Water quality data at gaging stations are typically compared with established federal, state, or local water quality standards to determine if violations (concentrations of specific constituents falling outside acceptable limits) have occurred. Based on the frequency and severity...

  11. General measures and quality of life issues in psoriasis

    Directory of Open Access Journals (Sweden)

    Rashmi Sarkar

    2016-01-01

    Full Text Available Psoriasis generally does not affect survival but has significant detrimental effect on quality of life (QOL, which may be comparable to that of ischemic heart disease, diabetes, depression, and cancer. The foremost important thing in the management of psoriasis is counseling of the patient. The clinician needs to be empathetic and spend adequate time with the patient and educating the patient about psoriasis. Clinicians should make it clear to the patient that the primary goal of treatment is control of the disease rather than cure. Eating a balanced and low glycemic diet could be an important adjuvant factor in the prevention and treatment of moderate nonpustular psoriasis. Obese people are more likely to have severe psoriasis and psoriatic arthritis than people with an average body mass index. Dietary supplementation with oily fish, rich in n-3 fatty acids, in psoriasis had shown mixed results in trials. Promising results have been documented for parenteral application of n-3 fatty acid, but not with oral supplementation. Increased smoking or alcohol abuse increases the risk of developing psoriasis and may influence disease severity, and hence must be avoided. Soaking in warm water with bath oil can be done in extensive psoriasis for hydration and emollient effect, and bland soaps or soap substitutes should be used; antiseptics should be avoided as they may irritate the skin. Relatively small, localized patches of psoriasis may improve with occlusion, i.e., waterproof adhesive dressings. The use of emollients is an internationally accepted standard adjunctive to the treatment of psoriasis. Dermatology Life Quality Index is a psychometrically sound and responsive measure of psoriasis-specific outcomes and most comprehensively captures the impact of clinical signs and symptoms on patient's well-being.

  12. Measuring the quality of MDT working: an observational approach

    Directory of Open Access Journals (Sweden)

    Taylor Cath

    2012-05-01

    Full Text Available Abstract Background Cancer multidisciplinary teams (MDTs are established in many countries but little is known about how well they function. A core activity is regular MDT meetings (MDMs where treatment recommendations are agreed. A mixed methods descriptive study was conducted to develop and test quality criteria for observational assessment of MDM performance calibrated against consensus from over 2000 MDT members about the “characteristics of an effective MDT”. Methods Eighteen of the 86 ‘Characteristics of Effective MDTs’ were considered relevant and feasible to observe. They collated to 15 aspects of MDT working covering four domains: the team (e.g. attendance, chairing, teamworking; infrastructure for meetings (venue, equipment; meeting organisation and logistics; and patient-centred clinical decision-making (patient-centredness, clarity of recommendations. Criteria for rating each characteristic from ‘very poor’ to ‘very good’ were derived from literature review, observing MDMs and expert input. Criteria were applied to 10 bowel cancer MDTs to assess acceptability and measure variation between and within teams. Feasibility and inter-rater reliability was assessed by comparing three observers. Results Observational assessment was acceptable to teams and feasible to implement. Total scores from 29 to 50 (out of 58 highlighted wide diversity in quality between teams. Eight teams were rated either ‘very good/good’ or ‘very poor/poor’ for at least three domains demonstrating some internal consistency. ‘Very good’ ratings were most likely for attendance and administrative preparation, and least likely for patient-centredness of decision-making and prioritisation of complex cases. All except two characteristics had intra-class correlations of ≥0.50. Conclusions This observational tool (MDT-OARS may contribute to the assessment of MDT performance. Further testing to confirm validity and reliability is required.

  13. Measuring disease-specific quality of life in rare populations: a practical approach to cross-cultural translation

    Directory of Open Access Journals (Sweden)

    Riedlinger Arne

    2009-10-01

    Full Text Available Abstract Background Disease-specific quality of life (QoL measures have enhanced the capacity of outcome measures to evaluate subtle changes and differences between groups. However, when the specific disease is rare, the cohort of patients is small and international collaboration is often necessary to accomplish meaningful research. As many of the QoL measures have been developed in North American English, they require translation to ensure their usefulness in a multi-cultural and/or international society. Published guidelines provide formal methods to achieve cross-culturally comparable versions of a QoL tool. However, these guidelines describe a rigorous process that is not always feasible, particularly in rare disease groups. The objective of this manuscript is to describe the process that was developed to achieve accurate cross-cultural translations of a disease-specific QoL measure, to overcome the challenges of a small sample size, i.e. children with a rare disorder. Procedure A measurement study was conducted in the United Kingdom (UK, France, Germany and Uruguay, during which the validated measure was translated into the languages of the respective countries. Results This is a report of a modified, child-centric, cross-cultural translation and adaptation process in which culturally appropriate and methodologically valid translations of a disease-specific QoL measure, the Kids' ITP Tools (KIT, were performed in children with immune thrombocytopenic purpura (ITP. The KIT was translated from North American English into UK English, French, German, and Spanish. Conclusion This study was a successful international collaboration. The modified process through which culturally appropriate and methodologically valid translations of QoL measures may be achieved in a pediatric population with a relatively rare disorder is reported.

  14. 77 FR 11119 - Request for Nominations of Children's Healthcare Quality Measures for Potential Inclusion in the...

    Science.gov (United States)

    2012-02-24

    ... Nominations of Children's Healthcare Quality Measures for Potential Inclusion in the CHIPRA 2013 Improved Core... quality for potential inclusion in the CHIPRA 2013 Improved Core Set of Health Care Quality Measures (the... inclusion, more information, including a copyright release (if applicable) and full measure specifications...

  15. Quality control scheme for thyroid related hormones measured by radioimmunoassay

    International Nuclear Information System (INIS)

    Kamel, R.S.

    1989-09-01

    A regional quality control scheme for thyroid related hormones measured by radioimmunoassay is being established in the Middle East. The scheme started in January 1985, with eight laboratories which were all from Iraq. At the present nineteen laboratories from Iraq, Jordan, Kuwait, Saudi Arabia and United Arab Emirates (Dubai) are now participating in the scheme. The scheme was supported by the International Atomic Energy Agency. All participants received monthly three freeze dried quality control samples for assay. Results for T3, T4 and TSH received from participants are analysed statistically batch by batch and returned to the participants. Laboratories reporting quite marked bias results were contacted to check the assay performance for that particular batch and to define the weak points. Clinical interpretation for certain well defined samples were reported. A regular case study report is recently introduced to the scheme and will be distributed regularly as one of the guidelines in establishing a trouble shooting programme throughout the scheme. The overall mean between the laboratory performance showed a good result for the T4, moderate but acceptable for T3 and poor for TSH. The statistical analysis of the results based on the concept of a ''target'' value is derived from the believed correct value the ''Median''. The overall mean bias values (ignoring signs) for respectively low, normal and high concentration samples were for T4 18.0 ± 12.5, 11.2 ± 6.4 and 11.2 ± 6.4, for T3 28.8 ± 23.5, 11.2 ± 8.4 and 13.4 ± 9.0 and for TSH 46.3 ± 50.1, 37.2 ± 28.5 and 19.1 ± 12.1. The scheme proved to be effective not only in improving the overall performance but also it helped to develop awareness of the need for internal quality control programmes and gave confidence in the results of the participants. The scheme will continue and will be expanded to involve more laboratories in the region. Refs, fig and tabs

  16. Software cost/resource modeling: Software quality tradeoff measurement

    Science.gov (United States)

    Lawler, R. W.

    1980-01-01

    A conceptual framework for treating software quality from a total system perspective is developed. Examples are given to show how system quality objectives may be allocated to hardware and software; to illustrate trades among quality factors, both hardware and software, to achieve system performance objectives; and to illustrate the impact of certain design choices on software functionality.

  17. QUALITY OF SERVICE AND CONDITIONS OF CUSTOMER SATISFACTION MEASUREMENT

    Directory of Open Access Journals (Sweden)

    Renata Winkler

    2014-09-01

    Full Text Available The starting point for the considerations made in the article is to compare such categories as product quality and service quality. An essential part of analysis is devoted to the relation of quality of service and satisfaction with the service. In the article discusses the grounds of designing and preparing customer satisfaction survey of services.

  18. Recent Development in Rigorous Computational Methods in Dynamical Systems

    OpenAIRE

    Arai, Zin; Kokubu, Hiroshi; Pilarczyk, Paweł

    2009-01-01

    We highlight selected results of recent development in the area of rigorous computations which use interval arithmetic to analyse dynamical systems. We describe general ideas and selected details of different ways of approach and we provide specific sample applications to illustrate the effectiveness of these methods. The emphasis is put on a topological approach, which combined with rigorous calculations provides a broad range of new methods that yield mathematically rel...

  19. Quality of life measurement and outcome in aphasia

    Directory of Open Access Journals (Sweden)

    Spaccavento S

    2013-12-01

    Full Text Available Simona Spaccavento, Angela Craca, Marina Del Prete, Rosanna Falcone, Antonia Colucci, Angela Di Palma, Anna Loverre IRCCS Salvatore Maugeri Foundation, Cassano Murge Bari, Italy Background: Quality of life (QL can be defined as the individual's perception of their own well-being. Aphasia is the most important potential consequence of stroke and has a profound effect on a patient's life, causing emotional distress, depression, and social isolation, due to loss of language functions. Aims: To draw up a QL questionnaire for aphasics (QLQA focusing particularly on difficulties in interpersonal relationships and on the loss of independence as a result of language disorders. We reported the results of a psychometric evaluation of this measure. Moreover, we experimentally focused on the differences in QLQA between patients affected only by neurological motor impairment and hemiparetic patients with aphasia (PWA in order to verify the specific role of aphasia on QL. We also explored if the QLQA is sensitive to the severity of aphasia and to the time elapsing from the stroke. Methods: A total of 146 consecutive PWA and 37 control subjects were enrolled to evaluate the reliability (internal consistency and test–retest reliability and validity of the QLQA, using standard psychometric methods. Patients were divided into acute (within 3 months since stroke and chronic (beyond 3 months groups, and into mild and severe according to the severity of aphasia. The experimental group of only acute PWA was compared to control subjects, with right hemispherical lesion and without aphasia in QLQA total and partial scores. Results: The QLQA had good internal consistency and test–retest reliability. Acute and chronic PWA and mild and severe ones differed in QLQA total, communication, and autonomy subscales. No differences were found in psychological condition. Between aphasic and control patients, significant differences were found in all QLQA subscales. Conclusion

  20. Impact of Advanced Practice Registered Nurses on Quality Measures: The Missouri Quality Initiative Experience.

    Science.gov (United States)

    Rantz, Marilyn J; Popejoy, Lori; Vogelsmeier, Amy; Galambos, Colleen; Alexander, Greg; Flesner, Marcia; Murray, Cathy; Crecelius, Charles; Ge, Bin; Petroski, Gregory

    2018-06-01

    The purpose of this article is to review the impact of advanced practice registered nurses (APRNs) on the quality measure (QM) scores of the 16 participating nursing homes of the Missouri Quality Initiative (MOQI) intervention. The MOQI was one of 7 program sites in the US, with specific interventions unique to each site tested for the Centers for Medicaid and Medicare Services Innovations Center. While the goals of the MOQI for long-stay nursing home residents did not specifically include improvement of the QM scores, it was anticipated that improvement most likely would occur. Primary goals of the MOQI were to reduce the frequency of avoidable hospital admissions and readmissions; improve resident health outcomes; improve the process of transitioning between inpatient hospitals and nursing facilities; and reduce overall healthcare spending without restricting access to care or choice of providers. A 2-group comparison analysis was conducted using statewide QMs; a matched comparison group was selected from facilities in the same counties as the intervention homes, similar baseline QM scores, similar size and ownership. MOQI nursing homes each had an APRN embedded full-time to improve care and help the facility achieve MOQI goals. Part of their clinical work with residents and staff was to focus on quality improvement strategies with potential to influence healthcare outcomes. Trajectories of QM scores for the MOQI intervention nursing homes and matched comparison group homes were tested with nonparametric tests to examine for change in the desired direction between the 2 groups from baseline to 36 months. A composite QM score for each facility was constructed, and baseline to 36-month average change scores were examined using nonparametric tests. Then, adjusting for baseline, a repeated measures analysis using analysis of covariance as conducted. Composite QM scores of the APRN intervention group were significantly better (P = .025) than the comparison group

  1. Using Medicaid and CHIP claims data to support pediatric quality measurement: lessons from 3 centers of excellence in measure development.

    Science.gov (United States)

    Gidengil, Courtney; Mangione-Smith, Rita; Bailey, L Charles; Cawthon, Mary Lawrence; McGlynn, Elizabeth A; Nakamura, Mari M; Schiff, Jeffrey; Schuster, Mark A; Schneider, Eric C

    2014-01-01

    We sought to explore the claims data-related issues relevant to quality measure development for Medicaid and the Children's Health Insurance Program (CHIP), illustrating the challenges encountered and solutions developed around 3 distinct performance measure topics: care coordination for children with complex needs, quality of care for high-prevalence conditions, and hospital readmissions. Each of 3 centers of excellence presents an example that illustrates the challenges of using claims data for quality measurement. Our Centers of Excellence in pediatric quality measurement used innovative methods to develop algorithms that use Medicaid claims data to identify children with complex needs; overcome some shortcomings of existing data for measuring quality of care for common conditions such as otitis media; and identify readmissions after hospitalizations for lower respiratory infections. Our experience constructing quality measure specifications using claims data suggests that it will be challenging to measure key quality of care constructs for Medicaid-insured children at a national level in a timely and consistent way. Without better data to underpin pediatric quality measurement, Medicaid and CHIP will have difficulty using some existing measures for accountability, value-based purchasing, and quality improvement both across states and within states. Copyright © 2014 Academic Pediatric Association. Published by Elsevier Inc. All rights reserved.

  2. PRO development: rigorous qualitative research as the crucial foundation.

    Science.gov (United States)

    Lasch, Kathryn Eilene; Marquis, Patrick; Vigneux, Marc; Abetz, Linda; Arnould, Benoit; Bayliss, Martha; Crawford, Bruce; Rosa, Kathleen

    2010-10-01

    Recently published articles have described criteria to assess qualitative research in the health field in general, but very few articles have delineated qualitative methods to be used in the development of Patient-Reported Outcomes (PROs). In fact, how PROs are developed with subject input through focus groups and interviews has been given relatively short shrift in the PRO literature when compared to the plethora of quantitative articles on the psychometric properties of PROs. If documented at all, most PRO validation articles give little for the reader to evaluate the content validity of the measures and the credibility and trustworthiness of the methods used to develop them. Increasingly, however, scientists and authorities want to be assured that PRO items and scales have meaning and relevance to subjects. This article was developed by an international, interdisciplinary group of psychologists, psychometricians, regulatory experts, a physician, and a sociologist. It presents rigorous and appropriate qualitative research methods for developing PROs with content validity. The approach described combines an overarching phenomenological theoretical framework with grounded theory data collection and analysis methods to yield PRO items and scales that have content validity.

  3. Measurement of Health Care Quality in Atopic Dermatitis - Development and Application of a Set of Quality Indicators.

    Science.gov (United States)

    Steinke, S; Beikert, F C; Langenbruch, A; Fölster-Holst, R; Ring, J; Schmitt, J; Werfel, T; Hintzen, S; Franzke, N; Augustin, M

    2018-05-15

    Quality indicators are essential tools for the assessment of health care, in particular for guideline-based procedures. 1) Development of a set of indicators for the evaluation of process and outcomes quality in atopic dermatitis (AD) care. 2) Application of the indicators to a cross-sectional study and creation of a global process quality index. An expert committee consisting of 10 members of the German guideline group on atopic dermatitis condensed potential quality indicators to a final set of 5 outcomes quality and 12 process quality indicators using a Delphi panel. The outcomes quality and 7 resp. 8 process quality indicators were retrospectively applied to a nationwide study on 1,678 patients with atopic dermatitis (AtopicHealth). Each individual process quality indicator score was then summed up to a global index (ranges from 0 (no quality achieved) to 100 (full quality achieved)) displaying the quality of health care. In total, the global process quality index revealed a median value of 62.5 and did not or only slightly correlate to outcome indicators as the median SCORAD (SCORing Atopic Dermatitis; rp =0.08), Dermatology Life Quality Index (DLQI; rp = 0.256), and Patient Benefit Index (PBI; rp = -0.151). Process quality of AD care is moderate to good. The health care process quality index does not substantially correlate to the health status of AD patients measured by 5 different outcomes quality indicators. Further research should include the investigation of reliability, responsiveness, and feasibility of the proposed quality indicators for AD. This article is protected by copyright. All rights reserved. This article is protected by copyright. All rights reserved.

  4. Tenderness of pre- and post rigor lamb longissimus muscle.

    Science.gov (United States)

    Geesink, Geert; Sujang, Sadi; Koohmaraie, Mohammad

    2011-08-01

    Lamb longissimus muscle (n=6) sections were cooked at different times post mortem (prerigor, at rigor, 1dayp.m., and 7 days p.m.) using two cooking methods. Using a boiling waterbath, samples were either cooked to a core temperature of 70 °C or boiled for 3h. The latter method was meant to reflect the traditional cooking method employed in countries where preparation of prerigor meat is practiced. The time postmortem at which the meat was prepared had a large effect on the tenderness (shear force) of the meat (PCooking prerigor and at rigor meat to 70 °C resulted in higher shear force values than their post rigor counterparts at 1 and 7 days p.m. (9.4 and 9.6 vs. 7.2 and 3.7 kg, respectively). The differences in tenderness between the treatment groups could be largely explained by a difference in contraction status of the meat after cooking and the effect of ageing on tenderness. Cooking pre and at rigor meat resulted in severe muscle contraction as evidenced by the differences in sarcomere length of the cooked samples. Mean sarcomere lengths in the pre and at rigor samples ranged from 1.05 to 1.20 μm. The mean sarcomere length in the post rigor samples was 1.44 μm. Cooking for 3 h at 100 °C did improve the tenderness of pre and at rigor prepared meat as compared to cooking to 70 °C, but not to the extent that ageing did. It is concluded that additional intervention methods are needed to improve the tenderness of prerigor cooked meat. Copyright © 2011 Elsevier B.V. All rights reserved.

  5. How best to assess quality of life in informal carers of people with dementia; A systematic review of existing outcome measures

    Science.gov (United States)

    Robinson, Jonah; Robalino, Shannon; Finch, Tracy; McColl, Elaine

    2018-01-01

    Background In the UK, there are currently 800 000 people living with dementia. This number is expected to double in the next 20 years. Two-thirds of people with dementia live in the community supported by informal carers. Caring for a person with dementia has adverse effects on psychological, physical, social wellbeing and quality of life. The measurement of quality of life of carers of people with dementia is increasingly of interest to health and social care practitioners and commissioners, policymakers, and carers themselves. However, there is lack of consensus on the most suitable instrument(s) for undertaking this. Methods A systematic review of the literature using COSMIN methodology. Searching of electronic databases (Medline, PsycINFO, CINAHL and Web of Science), reference list and citation searching of key papers was undertaken. COSMIN methodology was used to simultaneously extract data from and assess methodological quality of included studies, and make a recommendation for the instrument with the most high quality evidence for its measurement properties. Results Ten instruments were suitable for inclusion in this review. The Carer well-being and support questionnaire (CWS) has the best quality evidence for the greatest number of measurement of properties. The Caregiver Well-Being Scale is also worthy of consideration. There is not presently a measure which could be recommended for use in economic evaluations, however the Impact of Alzheimer’s Disease on the Caregiver questionnaire (IADCQ) could potentially be used following further investigation of its measurement properties in a representative population. Conclusion The CWS is the most appropriate instrument to recommend for the assessment of quality of life in informal carers of people with dementia at present. All instruments included in this review would benefit from more rigorous evaluation of their measurement properties. PMID:29538433

  6. Quality of Life Assessment for Physical Activity and Health Promotion: Further Psychometrics and Comparison of Measures

    Science.gov (United States)

    Gill, Diane L.; Reifsteck, Erin J.; Adams, Melanie M.; Shang, Ya-Ting

    2015-01-01

    Despite the clear relationship between physical activity and quality of life, few sound, relevant quality of life measures exist. Gill and colleagues developed a 32-item quality of life survey, and provided initial psychometric evidence. This study further examined that quality of life survey in comparison with the widely used short form (SF-36)…

  7. Assessing Educational Processes Using Total-Quality-Management Measurement Tools.

    Science.gov (United States)

    Macchia, Peter, Jr.

    1993-01-01

    Discussion of the use of Total Quality Management (TQM) assessment tools in educational settings highlights and gives examples of fishbone diagrams, or cause and effect charts; Pareto diagrams; control charts; histograms and check sheets; scatter diagrams; and flowcharts. Variation and quality are discussed in terms of continuous process…

  8. Field Measurements of Perceived Air Quality in the Test-Bed for Innovative Climate Conditioning Technologies

    DEFF Research Database (Denmark)

    Kolarik, Jakub; Toftum, Jørn; Kabrhel, Michal

    the potential influence of aforementioned technologies on the perceived air quality. Additionally, the effect of Demand Controlled Ventilation (DCV) on the perceived air quality was tested. Measurements comprised of the assessments of perceived air quality and objective measurements of operative temperature...

  9. 'Procurement quality engineering': A measurement driven system to assure quality at each step in the procurement process

    International Nuclear Information System (INIS)

    Rinderman, R.R.

    1993-01-01

    The 'Procurement Quality Function' is an element of the Body of Knowledge of Quality Engineering, as defined by the American Society for Quality Control (ASQC). This paper describes the Procurement Quality function which has been installed as an integral part of the Quality Engineering group of the Technical and Management Support Services (T ampersand MSS) contractor to the United States Department of Energy (DOE) Yucca Mountain Site Characterization Project. Each of the elements of the T ampersand MSS Procurement Quality Engineering (PQE) system is discussed along with the measurements obtained. With the installation and development of the PQE system we have attained more meaningful evaluation of supplier capability, reduction of procurement document review reject ratios from 31% to less than 2% per quarter, more effective measurement and control of supplier performance, and the ability to enter into a meaningful teaming effort with T ampersand MSS suppliers

  10. Impact of Quality Improvement Educational Interventions on Documented Adherence to Quality Measures for Adults with Crohn's Disease.

    Science.gov (United States)

    Greene, Laurence; Sapir, Tamar; Moreo, Kathleen; Carter, Jeffrey D; Patel, Barry; Higgins, Peter D R

    2015-09-01

    In recent years, leading organizations in inflammatory bowel disease (IBD) have developed quality measures for the care of adults with Crohn's disease or ulcerative colitis. We used chart audits to assess the impact of quality improvement educational activities on documented adherence to Physician Quality Reporting System measures for IBD. Twenty community-based gastroenterologists were recruited to participate in baseline chart audits (n = 200), a series of 4 accredited educational activities with feedback, and follow-up chart audits (n = 200). Trained abstractors reviewed randomly selected charts of adults with moderate or severe Crohn's disease. The charts were retrospectively abstracted for physicians' documented performance of the 2013 Physician Quality Reporting System IBD quality measures. We compared the physicians' baseline and posteducation rates of documented adherence with 10 of these measures. In a secondary analysis, we compared preeducation with posteducation difference scores of low-performing physicians, those whose baseline documentation rates were in the lowest quartile, and the rest of the cohort. At baseline, documentation of mean provider-level adherence to the 10 quality measures ranged from 3% to 98% (grand mean = 35.8%). In the overall analysis, baseline and posteducation rates of documented adherence did not differ significantly for any of the measures. However, for 4 measures, preeducation to posteducation difference scores were significantly greater among low performers than physicians in the highest 3 quartiles. The results of this preliminary pragmatic study indicate that quality improvement education affords the potential to improve adherence to Physician Quality Reporting System quality measures for IBD among low-performing gastroenterologists.

  11. The Relationship between Quality Measurement and Efficiency Improvement in Health Care Systems

    OpenAIRE

    Gilbert Roland; Dr. Jane Marry Gill

    2017-01-01

    Quality measurement in health care organisation is most often considered as measures for cost-saving and error reduction in the clinical procedures. The concept of quality measurement in health care organisations is the analysis of effectiveness and accuracy in procedures for patients’ diagnosis and treatment. This study aimed to find the relationship between quality measurement and efficiency improvements in the healthcare sector of Mauritius. This was executed by using mixed methodological ...

  12. The use of quality of life measures in oral medicine: a review of the literature.

    LENUS (Irish Health Repository)

    Riordain, R Ni

    2010-07-01

    To explore the use of patient reported quality of life measures in oral medicine, to highlight the importance of use of these measures in oral medicine practice and to provide guidance for the selection of such measures in the future.

  13. Quality of life : assessment for transportation performance measures.

    Science.gov (United States)

    2013-01-01

    Quality of life (QOL) is a commonly used term. Defining QOL, however, is an ongoing challenge that experts : often take on with minimal input from citizens. This groundbreaking research sought citizen input on what : comprised QOL and what role trans...

  14. Measuring the Air Quality and Transportation Impacts of Infill Development

    Science.gov (United States)

    This report summarizes three case studies. The analysis shows how standard forecasting tools can be modified to capture at least some of the transportation and air quality benefits of brownfield and infill development.

  15. Inpatient Psychiatric Facility Quality Measure Data – by State

    Data.gov (United States)

    U.S. Department of Health & Human Services — Psychiatric facilities that are eligible for the Inpatient Psychiatric Facility Quality Reporting (IPFQR) program are required to meet all program requirements,...

  16. Correction of stream quality trends for the effects of laboratory measurement bias

    Science.gov (United States)

    Alexander, Richard B.; Smith, Richard A.; Schwarz, Gregory E.

    1993-01-01

    We present a statistical model relating measurements of water quality to associated errors in laboratory methods. Estimation of the model allows us to correct trends in water quality for long-term and short-term variations in laboratory measurement errors. An illustration of the bias correction method for a large national set of stream water quality and quality assurance data shows that reductions in the bias of estimates of water quality trend slopes are achieved at the expense of increases in the variance of these estimates. Slight improvements occur in the precision of estimates of trend in bias by using correlative information on bias and water quality to estimate random variations in measurement bias. The results of this investigation stress the need for reliable, long-term quality assurance data and efficient statistical methods to assess the effects of measurement errors on the detection of water quality trends.

  17. Quality of Life Scale: A Measure of Function for People with Pain

    Science.gov (United States)

    Quality Of Life Scale A Measure Of Function For People With Pain 0 Non-functioning 1 2 3 4 ... the week Active on weekends 9 10 Normal Quality of Life Work/volunteer/be active eight hours daily Take ...

  18. Assessing water quality of rural water supply schemes as a measure ...

    African Journals Online (AJOL)

    Assessing water quality of rural water supply schemes as a measure of service ... drinking water quality parameters were within the World Health Organization ... Besides, disinfection of water at the household level can be an added advantage.

  19. Nurses’ perceptions of feedback to nursing teams on quality measurements: An embedded case study design

    NARCIS (Netherlands)

    Giesbers, A.P.M.; Schouteten, R.L.J.; Poutsma, Erik; Heijden, B.I.J.M. van der; Achterberg, T. van

    2016-01-01

    BACKGROUND Providing nursing teams with feedback on quality measurements is used as a quality improvement instrument in healthcare organizations worldwide. Previous research indicated contradictory results regarding the effect of such feedback on both nurses’ well-being and

  20. Nurses' perceptions of feedback to nursing teams on quality measurements: An embedded case study design

    NARCIS (Netherlands)

    Giesbers, A.P.; Schouteten, R.L.; Poutsma, F.; Heijden, B.I. van der; Achterberg, T. van

    2016-01-01

    BACKGROUND: Providing nursing teams with feedback on quality measurements is used as a quality improvement instrument in healthcare organizations worldwide. Previous research indicated contradictory results regarding the effect of such feedback on both nurses' well-being and performance. OBJECTIVES:

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

    DEFF Research Database (Denmark)

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

    2016-01-01

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

  2. SERVICE QUALITY MEASUREMENT: IMPLICATIONS FOR HEALTHCARE SECTOR IN BULGARIA

    OpenAIRE

    VASSILEVA, Bistra; BALLONI, Antonio José

    2014-01-01

    The aim of the paper is to present the service quality situation in hospitals in North-Eastern Planning Region in Bulgaria. Our intention was to assess the gap between the expected and perceived healthcare service quality in hospitals. To meet these goals we conducted a study using prospective questionnaire provided by the GESITI project (Management of System and Information Technology in Hospitals [GESITI], 2013) and SERVQUAL scale. The results helped us to summarize the challenges for Bulga...

  3. Challenges and Opportunities in Using Patient-Reported Outcomes in Quality Measurement in Rheumatology

    OpenAIRE

    Wahl, Elizabeth; Yazdany, Jinoos

    2016-01-01

    Use of Patient-reported outcome measures (PROs) in rheumatology research is widespread, but use of PRO data to evaluate the quality of rheumatologic care delivered is less well established. This article reviews the use of PROs in assessing healthcare quality, and highlights challenges and opportunities specific to their use in rheumatology quality measurement. We first explore other countries’ experiences collecting and evaluating national PRO data to assess quality of care. We describe the c...

  4. Quality control measurements for digital x-ray detectors

    Energy Technology Data Exchange (ETDEWEB)

    Marshall, N W [Department of Radiology, University Hospitals Leuven, 49 Herenstraat, 3000 Leuven (Belgium); Mackenzie, A [National Co-ordinating Centre for the Physics of Mammography, Medical Physics, Level B, St Luke' s Wing, The Royal Surrey County Hospital NHS Trust, Egerton Road, Guildford, GU2 7XX (United Kingdom); Honey, I D, E-mail: nicholas.marshall@uz.kuleuven.ac.be [Department of Medical Physics, Floor 3, Henriette Raphael House, Guy' s and St Thomas' Hospital, London, SE1 9RT (United Kingdom)

    2011-02-21

    This paper describes a digital radiography (DR) quality control protocol for DR detectors from the forthcoming report from the Institute of Physics and Engineering in Medicine (IPEM). The protocol was applied to a group of six identical caesium iodide (CsI) digital x-ray detectors to assess reproducibility of methods, while four further detectors were assessed to examine the wider applicability. Twelve images with minimal spatial frequency processing are required, from which the detector response, lag, modulation transfer function (MTF), normalized noise power spectrum (NNPS) and threshold contrast-detail (c-d) detectability are calculated. The x-ray spectrum used was 70 kV and 1 mm added copper filtration, with a target detector air kerma of 2.5 {mu}Gy for the NNPS and c-d results. In order to compare detector performance with previous imaging technology, c-d data from four screen/film systems were also acquired, at a target optical density of 1.5 and an average detector air kerma of 2.56 {mu}Gy. The DR detector images were typically acquired in 20 min, with a further 45 min required for image transfer and analysis. The average spatial frequency for the 50% point of the MTF for six identical detectors was 1.29 mm{sup -1} {+-} 0.05 (3.9% coefficient of variation (cov)). The air kerma set for the six systems was 2.57 {mu}Gy {+-} 0.13 (5.0% cov) and the NNPS at this air kerma was 1.42 x 10{sup -5} mm{sup 2} (6.5% cov). The detective quantum efficiency (DQE) measured for the six identical detectors was 0.60 at 0.5 mm{sup -1}, with a maximum cov of 10% at 2.9 mm{sup -1}, while the average DQE was 0.56 at 0.5 mm{sup -1} for three CsI detectors from three different manufacturers. Comparable c-d performance was found for these detectors (5.9% cov) with an average threshold contrast of 0.46% for 11 mm circular discs. The average threshold contrast for the S/F systems was 0.70% at 11 mm, indicating superior imaging performance for the digital systems. The protocol was found

  5. Structural modeling of the production quality as a multidimensional object of measurement and control

    OpenAIRE

    Зубрецкая, Наталья Анатольевна

    2015-01-01

    The structural-analytical models of product quality as a multidimensional process of evaluation, measurement and control are developed. The product quality is represented as a multi-factor, multi-criteria and multi-parameter estimation object. This structural formalization of quality demonstrates the multidimensional qualities: comprehensiveness due to a set of environmental factors; multicriteriality due collectively evaluated quality criteria; multiparameter information models that describe...

  6. Electrocardiogram signal quality measures for unsupervised telehealth environments

    International Nuclear Information System (INIS)

    Redmond, S J; Xie, Y; Chang, D; Lovell, N H; Basilakis, J

    2012-01-01

    The use of telehealth paradigms for the remote management of patients suffering from chronic conditions has become more commonplace with the advancement of Internet connectivity and enterprise software systems. To facilitate clinicians in managing large numbers of telehealth patients, and in digesting the vast array of data returned from the remote monitoring environment, decision support systems in various guises are often utilized. The success of decision support systems in interpreting patient conditions from physiological data is dependent largely on the quality of these recorded data. This paper outlines an algorithm to determine the quality of single-lead electrocardiogram (ECG) recordings obtained from telehealth patients. Three hundred short ECG recordings were manually annotated to identify movement artifact, QRS locations and signal quality (discrete quality levels) by a panel of three experts, who then reconciled the annotation as a group to resolve any discrepancies. After applying a published algorithm to remove gross movement artifact, the proposed method was then applied to estimate the remaining ECG signal quality, using a Parzen window supervised statistical classifier model. The three-class classifier model, using a number of time-domain features and evaluated using cross validation, gave an accuracy in classifying signal quality of 78.7% (κ = 0.67) when using fully automated preprocessing algorithms to remove gross motion artifact and detect QRS locations. This is a similar level of accuracy to the reported human inter-scorer agreement when generating the gold standard annotation (accuracy = 70–89.3%, κ = 0.54–0.84). These results indicate that the assessment of the quality of single-lead ECG recordings, acquired in unsupervised telehealth environments, is entirely feasible and may help to promote the acceptance and utility of future decision support systems for remotely managing chronic disease conditions. (paper)

  7. Measuring and improving cardiopulmonary resuscitation quality inside the emergency department.

    Science.gov (United States)

    Crowe, Christopher; Bobrow, Bentley J; Vadeboncoeur, Tyler F; Dameff, Christian; Stolz, Uwe; Silver, Annemarie; Roosa, Jason; Page, Rianne; LoVecchio, Frank; Spaite, Daniel W

    2015-08-01

    To evaluate CPR quality during cardiac resuscitation attempts in an urban emergency department (ED) and determine the influence of the combination of scenario-based training, real-time audiovisual feedback (RTAVF), and post-event debriefing on CPR quality. CPR quality was recorded using an R Series monitor-defibrillator (ZOLL Medical) during the treatment of adult cardiac arrest patients. Phase 1 (P1; 11/01/2010-11/15/2012) was an observation period of CPR quality. Phase 2 (P2; 11/15/2012-11/08/2013) was after a 60-min psychomotor skills CPR training and included RTAVF and post-event debriefing. A total of 52 cardiac arrest patients were treated in P1 (median age 56 yrs, 63.5% male) and 49 in P2 (age 60 yrs, 83.7% male). Chest compression (CC) depth increased from 46.7 ± 3.8mm in P1 to 61.6 ± 2.8mm in P2 (p training, real-time audiovisual CPR feedback, and post-event debriefing was associated with improved CPR quality and compliance with CPR guidelines in this urban teaching emergency department. Copyright © 2015 Elsevier Ireland Ltd. All rights reserved.

  8. ATP measurements for monitoring microbial drinking water quality

    DEFF Research Database (Denmark)

    Vang, Óluva Karin

    Current standard methods for surveillance of microbial drinking water quality are culture based, which are laborious and time-consuming, where results not are available before one to three days after sampling. This means that the water may have been consumed before results on deteriorated water....... The overall aim of this PhD study was to investigate various methodological features of the ATP assay for a potential implementation on a sensor platform as a real-time parameter for continuous on-line monitoring of microbial drinking water quality. Commercial reagents are commonly used to determine ATP......, microbial quality in distributed water, detection of aftergrowth, biofilm formation etc. This PhD project demonstrated that ATP levels are relatively low and fairly stable in drinking water without chlorine residual despite different sampling locations, different drinking water systems and time of year...

  9. Objective video quality measure for application to tele-echocardiography.

    Science.gov (United States)

    Moore, Peter Thomas; O'Hare, Neil; Walsh, Kevin P; Ward, Neil; Conlon, Niamh

    2008-08-01

    Real-time tele-echocardiography is widely used to remotely diagnose or exclude congenital heart defects. Cost effective technical implementation is realised using low-bandwidth transmission systems and lossy compression (videoconferencing) schemes. In our study, DICOM video sequences were converted to common multimedia formats, which were then, compressed using three lossy compression algorithms. We then applied a digital (multimedia) video quality metric (VQM) to determine objectively a value for degradation due to compression. Three levels of compression were simulated by varying system bandwidth and compared to a subjective assessment of video clip quality by three paediatric cardiologists with more than 5 years of experience.

  10. Reconciling the Rigor-Relevance Dilemma in Intellectual Capital Research

    Science.gov (United States)

    Andriessen, Daniel

    2004-01-01

    This paper raises the issue of research methodology for intellectual capital and other types of management research by focusing on the dilemma of rigour versus relevance. The more traditional explanatory approach to research often leads to rigorous results that are not of much help to solve practical problems. This paper describes an alternative…

  11. Paper 3: Content and Rigor of Algebra Credit Recovery Courses

    Science.gov (United States)

    Walters, Kirk; Stachel, Suzanne

    2014-01-01

    This paper describes the content, organization and rigor of the f2f and online summer algebra courses that were delivered in summers 2011 and 2012. Examining the content of both types of courses is important because research suggests that algebra courses with certain features may be better than others in promoting success for struggling students.…

  12. A rigorous treatment of uncertainty quantification for Silicon damage metrics

    International Nuclear Information System (INIS)

    Griffin, P.

    2016-01-01

    These report summaries the contributions made by Sandia National Laboratories in support of the International Atomic Energy Agency (IAEA) Nuclear Data Section (NDS) Technical Meeting (TM) on Nuclear Reaction Data and Uncertainties for Radiation Damage. This work focused on a rigorous treatment of the uncertainties affecting the characterization of the displacement damage seen in silicon semiconductors. (author)

  13. Effects of post mortem temperature on rigor tension, shortening and ...

    African Journals Online (AJOL)

    Fully developed rigor mortis in muscle is characterised by maximum loss of extensibility. The course of post mortem changes in ostrich muscle was studied by following isometric tension, shortening and change in pH during the first 24 h post mortem within muscle strips from the muscularis gastrocnemius, pars interna at ...

  14. Characterization of rigor mortis of longissimus dorsi and triceps ...

    African Journals Online (AJOL)

    24 h) of the longissimus dorsi (LD) and triceps brachii (TB) muscles as well as the shear force (meat tenderness) and colour were evaluated, aiming at characterizing the rigor mortis in the meat during industrial processing. Data statistic treatment demonstrated that carcass temperature and pH decreased gradually during ...

  15. A rigorous proof for the Landauer-Büttiker formula

    DEFF Research Database (Denmark)

    Cornean, Horia Decebal; Jensen, Arne; Moldoveanu, V.

    Recently, Avron et al. shed new light on the question of quantum transport in mesoscopic samples coupled to particle reservoirs by semi-infinite leads. They rigorously treat the case when the sample undergoes an adiabatic evolution thus generating a current through th leads, and prove the so call...

  16. Facing a Problem of Electrical Energy Quality in Ship Networks-measurements, Estimation, Control

    Institute of Scientific and Technical Information of China (English)

    Tomasz Tarasiuk; Janusz Mindykowski; Xiaoyan Xu

    2003-01-01

    In this paper, electrical energy quality and its indices in ship electric networks are introduced, especially the meaning of electrical energy quality terms in voltage and active and reactive power distribution indices. Then methods of measurement of marine electrical energy indices are introduced in details and a microprocessor measurement-diagnosis system with the function of measurement and control is designed. Afterwards, estimation and control of electrical power quality of marine electrical power networks are introduced. And finally, according to the existing method of measurement and control of electrical power quality in ship power networks, the improvement of relative method is proposed.

  17. University Rankings: How Well Do They Measure Library Service Quality?

    Science.gov (United States)

    Jackson, Brian

    2015-01-01

    University rankings play an increasingly large role in shaping the goals of academic institutions and departments, while removing universities themselves from the evaluation process. This study compares the library-related results of two university ranking publications with scores on the LibQUAL+™ survey to identify if library service quality--as…

  18. Measuring the Quality of the Website User Experience

    Science.gov (United States)

    Sauro, Jeff

    2016-01-01

    Consumers spend an increasing amount of time and money online finding information, completing tasks, or making purchases. The quality of the website experience has become a key differentiator for organizations--affecting whether they purchase and their likelihood to return and recommend a website to friends. Two instruments were created to more…

  19. A methodology of healthcare quality measurement: a case study

    International Nuclear Information System (INIS)

    Pecoraro, F; Luzi, D; Federico II, Naples (Italy))" data-affiliation=" (Department of Electrical Engineering and Information Technology and Interuniversity Centre of Bioengineering of the Human Neuromusculoskeletal System, University of Naples, Federico II, Naples (Italy))" >Cesarelli, M; Clemente, F

    2015-01-01

    In this paper we present a comprehensive model for quality assessment taking into account structure, process and outcome dimensions introduced in the Donabedian framework. To test our hypothesis a case study based on the Italian healthcare services is reported focusing on the analysis of the hospital bed management and on the phenomenon of both active and passive patient mobility

  20. Quality of life as an outcome measure in surgical oncology

    NARCIS (Netherlands)

    Langenhoff, B S; Krabbe, P F; Wobbes, T; Ruers, T J

    BACKGROUND: There is a growing interest in assessing the impact of a disease and the effect of a treatment on a patient's life, expressed as health-related quality of life (HRQoL). HRQoL assessment can provide essential outcome information for cancer surgery. METHODS: The core of this review is

  1. Effectiveness of streamside management zones on water quality: pretreatment measurements

    Science.gov (United States)

    J.L. Boggs; G. Sun; S.G. McNulty; W. Swartley; E. Treasure

    2008-01-01

    The objective of this paired watershed study is to quantify the effects of upland forest harvesting and Streamside Management Zones (SMZs) on stream water quantity and quality in North Carolina. Four watersheds ranging from 12 to 28 hectares (i.e., two on Hill Forest and two on Umstead Research Farm) with perennial stream channels were gauged for flow monitoring and...

  2. Two dimensional chromatographic analysis as a quality measure of ...

    African Journals Online (AJOL)

    Background: Homoeopathic mother tinctures and herbal extracts are used worldwide for medicinal purposes on the basis that the plant extract contains the active components essential for medicinal use. Quality analysis of samples ensures that the correct active components are present for medicinal use. Thin layer ...

  3. Measurement of quality of life I. A methodological framework

    DEFF Research Database (Denmark)

    Ventegodt, Søren; Hilden, Jørgen; Merrick, Joav

    2003-01-01

    meet to provide a sound basis for investigation by questionnaire. The seven criteria or desiderata are: (1) an explicit definition of quality of life; (2) a coherent philosophy of human life from which the definition is derived; (3) a theory that operationalizes the philosophy by specifying unambiguous...

  4. Measuring Service Quality in the Information Services Environment.

    Science.gov (United States)

    Maddox-Swan, Ruth

    1998-01-01

    The purpose of this research was to identify the service factors that influence judgments of customer satisfaction in the academic library/media center. The study, conducted at Florida State University examined the relative importance of these determinants of service quality and compared these results to earlier studies conducted with customers of…

  5. Traceability and quality control in mammography: measurements and models

    International Nuclear Information System (INIS)

    Peixoto, Jose Guilherme Pereira

    2002-10-01

    The success of a treatment or diagnosis using radiation, depends on the optimization of the dose determination to be administered for the patient and on the beam radiation quality. It is recognized by the international guidelines that it is necessary to improve calibration services for mammography beams in order to improve the quality of clinical diagnosis. Major efforts have been made by several laboratories in order to establish an appropriate and traceable calibration infrastructure and to provide the basis for a quality control program in mammography. The contribution of the radiation metrology network to the mammography services is reviewed in this work. Steps required for the implementation of a mammography calibration system using a constant potential x-ray and a clinical mammography x-ray machine are presented. The various qualities of mammography radiation discussed in this work are in accordance with the IEC 61674 and the AAPM recommendations. This work also presents the methodology and the procedures to maintain and to disseminate the traceability at the x-ray mammography range, describing the interlaboratory comparison performed at LNMRI/IRD/CNEN and at the IPEN/CNEN using the secondary standard ionization chambers traceable with the international standard. It assesses the inter-laboratory comparison consistency and decides whether a questionable value should or not be accepted, using the residual method. This thesis discusses the uncertainties involved in all steps of the calibration chain in accord once with the ISO recommendations. (author)

  6. A theoretical framework for measuring the quality of student learning ...

    African Journals Online (AJOL)

    The most important principles of outcomes-based education is that planning, teaching and assessment should focus on helping learners to achieve significant outcomes to high standards. This cannot be achieved without having suitable ways to describe desired learning outcomes and the quality of students' ...

  7. Identifying Shortcomings in the Measurement of Service Quality.

    Science.gov (United States)

    Fogarty, Gerard; Catts, R.; Forlin, C.

    2000-01-01

    Studied the use of SERVPEFR the performance component of the Service Quality Scale (SERVQUAL) in 2 studies involving 113 and 212 customers of businesses in Australia and investigated a revised (extended) version of SERVPEFR with 122 customers. Results suggest that SERVPEFR items are too easy to rate highly, and that the revisions did not overcome…

  8. Rigorous simulation: a tool to enhance decision making

    Energy Technology Data Exchange (ETDEWEB)

    Neiva, Raquel; Larson, Mel; Baks, Arjan [KBC Advanced Technologies plc, Surrey (United Kingdom)

    2012-07-01

    The world refining industries continue to be challenged by population growth (increased demand), regional market changes and the pressure of regulatory requirements to operate a 'green' refinery. Environmental regulations are reducing the value and use of heavy fuel oils, and leading to convert more of the heavier products or even heavier crude into lighter products while meeting increasingly stringent transportation fuel specifications. As a result actions are required for establishing a sustainable advantage for future success. Rigorous simulation provides a key advantage improving the time and efficient use of capital investment and maximizing profitability. Sustainably maximizing profit through rigorous modeling is achieved through enhanced performance monitoring and improved Linear Programme (LP) model accuracy. This paper contains examples on these two items. The combination of both increases overall rates of return. As refiners consider optimizing existing assets and expanding projects, the process agreed to achieve these goals is key for a successful profit improvement. The benefit of rigorous kinetic simulation with detailed fractionation allows for optimizing existing asset utilization while focusing the capital investment in the new unit(s), and therefore optimizing the overall strategic plan and return on investment. Individual process unit's monitoring works as a mechanism for validating and optimizing the plant performance. Unit monitoring is important to rectify poor performance and increase profitability. The key to a good LP relies upon the accuracy of the data used to generate the LP sub-model data. The value of rigorous unit monitoring are that the results are heat and mass balanced consistently, and are unique for a refiners unit / refinery. With the improved match of the refinery operation, the rigorous simulation models will allow capturing more accurately the non linearity of those process units and therefore provide correct

  9. A study of quality measures for protein threading models

    Directory of Open Access Journals (Sweden)

    Rychlewski Leszek

    2001-08-01

    Full Text Available Abstract Background Prediction of protein structures is one of the fundamental challenges in biology today. To fully understand how well different prediction methods perform, it is necessary to use measures that evaluate their performance. Every two years, starting in 1994, the CASP (Critical Assessment of protein Structure Prediction process has been organized to evaluate the ability of different predictors to blindly predict the structure of proteins. To capture different features of the models, several measures have been developed during the CASP processes. However, these measures have not been examined in detail before. In an attempt to develop fully automatic measures that can be used in CASP, as well as in other type of benchmarking experiments, we have compared twenty-one measures. These measures include the measures used in CASP3 and CASP2 as well as have measures introduced later. We have studied their ability to distinguish between the better and worse models submitted to CASP3 and the correlation between them. Results Using a small set of 1340 models for 23 different targets we show that most methods correlate with each other. Most pairs of measures show a correlation coefficient of about 0.5. The correlation is slightly higher for measures of similar types. We found that a significant problem when developing automatic measures is how to deal with proteins of different length. Also the comparisons between different measures is complicated as many measures are dependent on the size of the target. We show that the manual assessment can be reproduced to about 70% using automatic measures. Alignment independent measures, detects slightly more of the models with the correct fold, while alignment dependent measures agree better when selecting the best models for each target. Finally we show that using automatic measures would, to a large extent, reproduce the assessors ranking of the predictors at CASP3. Conclusions We show that given a

  10. Useful, Used, and Peer Approved: The Importance of Rigor and Accessibility in Postsecondary Research and Evaluation. WISCAPE Viewpoints

    Science.gov (United States)

    Vaade, Elizabeth; McCready, Bo

    2012-01-01

    Traditionally, researchers, policymakers, and practitioners have perceived a tension between rigor and accessibility in quantitative research and evaluation in postsecondary education. However, this study indicates that both producers and consumers of these studies value high-quality work and clear findings that can reach multiple audiences. The…

  11. Measuring service quality and a comparative analysis in airline industry

    Directory of Open Access Journals (Sweden)

    Mohammad Mehdi Izadi

    2013-01-01

    Full Text Available Quality of services in airline industry plays an important role in market penetration and customer retention. In this paper, we present a factor analysis to find important factors in Iranian Airline industry. The study designs a questionnaire consist of 35 questions and distribute it among 200 customers who regularly use services from 16 different airlines and they are investigated based on the implementation of factor analysis. The results of our survey determines seven important factors including physical features of the environment, Kettering, Pre-flight passenger services, Ability to respond, Reliability, Passenger service flight and Virtual Passenger Services. The paper discusses that improving these seven factors can significantly improve service quality in this sector.

  12. Validation of the instrument IMAQE-Food to measure effectiveness of food quality management

    NARCIS (Netherlands)

    Spiegel, van der M.; Boer, de W.J.; Luning, P.A.; Ziggers, G.W.; Jongen, W.M.F.

    2007-01-01

    Purpose - The purpose of this paper is to show that manufacturers use several quality assurance systems to assure quality. This paper aims to describe the validation of IMAQE-Food - an instrument that measures effectiveness of food quality systems. Design/methodology/approach - Generalisability,

  13. Analyzing Process Quality of Early Childhood Education with Many Facet Rash Measurement Model

    Science.gov (United States)

    Basturk, Ramazan; Isikoglu, Nesrin

    2008-01-01

    Quality of early childhood education institutions specifically, dimensions of process quality should be evaluated. Purpose of this study is to analyze process quality of early childhood education by using many-facet Rasch measurement model (MFRM). In this study, data were collected from twelve early childhood education institutions by four…

  14. [The measurement of data quality in censuses of population and housing].

    Science.gov (United States)

    1980-01-01

    The determination of data quality in population and housing censuses is discussed. Principal types of errors commonly found in census data are reviewed, and the parameters used to evaluate data quality are described. Various methods for measuring data quality are outlined and possible applications of the methods are illustrated using Canadian examples

  15. Towards a conceptual model to measure effectiveness of food quality systems

    NARCIS (Netherlands)

    Spiegel, van der M.; Luning, P.A.; Ziggers, G.W.; Jongen, W.M.F.

    2003-01-01

    In the food industry quality assurance (QA) systems such as GMP, HACCP, ISO and BRC, are applied for assuring food quality. However, it is still unknown to what extent these QA systems contribute to the realization of quality. Therefore, an instrument is required that measures the effectiveness of

  16. Measuring the Willingness to Pay for Tap Water Quality Improvements: Results of a Contingent Valuation Survey in Pusan

    Directory of Open Access Journals (Sweden)

    Chang-Seob Kim

    2013-10-01

    Full Text Available With increasing concern regarding health, people have developed an interest in the safety of drinking water. In this study, we attempt to measure the economic benefits of tap water quality improvement through a case study on Pusan, the second largest city in Korea. To this end, we use a scenario that the government plans to implement a new project of improving water quality and apply the contingent valuation (CV method. A one-and-one-half bounded dichotomous choice question (OOHBDC format is employed to reduce the potential for response bias in multiple-bound formats such as the double-bound model, while maintaining much of the efficiency. Moreover, we employ the spike model to deal with zero willingness to pay (WTP responses from the OOHBDC CV survey. The CV survey of 400 randomly selected households was rigorously designed to comply with the guidelines for best-practice CV studies using person-to-person interviews. From the spike OOHBDC CV model, the mean WTP for the improvement was estimated to be KRW 2,124 (USD 2.2, on average, per household, per month. The value amounts to 36.6% of monthly water bill and 20.2% of production costs of water. The conventional OOHBDC model produces statistically insignificant mean WTP estimate and even negative value, but the OOHBDC spike model gives us statistically significant mean WTP estimate and fitted our data well. The WTP value to Pusan residents can be computed to be KRW 31.2 billion (USD 32.1 million per year.

  17. Measuring, evaluating and improving hospital quality parameters/dimensions--an integrated healthcare quality approach.

    Science.gov (United States)

    Zineldin, Mosad; Camgöz-Akdağ, Hatice; Vasicheva, Valiantsina

    2011-01-01

    This paper aims to examine the major factors affecting cumulative summation, to empirically examine the major factors affecting satisfaction and to address the question whether patients in Kazakhstan evaluate healthcare similarly or differently from patients in Egypt and Jordan. A questionnaire, adapted from previous research, was distributed to Kazakhstan inpatients. The questionnaire contained 39 attributes about five newly-developed quality dimensions (5Qs), which were identified to be the most relevant attributes for hospitals. The questionnaire was translated into Russian to increase the response rate and improve data quality. Almost 200 usable questionnaires were returned. Frequency distribution, factor analysis and reliability checks were used to analyze the data. The three biggest concerns for Kazakhstan patients are: infrastructure; atmosphere; and interaction. Hospital staffs concern for patients' needs, parking facilities for visitors, waiting time and food temperature were all common specific attributes, which were perceived as concerns. These were shortcomings in all three countries. Improving health service quality by applying total relationship management and the 5Qs model together with a customer-orientation strategy is recommended. Results can be used by hospital staff to reengineer and redesign creatively their quality management processes and help move towards more effective healthcare quality strategies. Patients in three countries have similar concerns and quality perceptions. The paper describes a new instrument and method. The study assures relevance, validity and reliability, while being explicitly change-oriented. The authors argue that patient satisfaction is a cumulative construct, summing satisfaction as five different qualities (5Qs): object; processes; infrastructure; interaction and atmosphere.

  18. Activity meters: Calibration and quality assurance measures by the manufacturer

    International Nuclear Information System (INIS)

    Pychlau, P.

    1992-01-01

    A manufacturer of ionisation chambers gives a general idea of such quality assurance programs as may be implemented after an agreement has been reached at the EC level on a guideline for activity meters. Further issues discussed include the final controls, calibration of activity meters by the manufacturer and the advantages that the participation in cooperate tests would offer over a mandatory calibration of activity meters. (orig./DG) [de

  19. IAEA reference materials for quality assurance of marine radioactivity measurements

    International Nuclear Information System (INIS)

    Povinec, P.P.; Pham, M.K.

    2001-01-01

    The IAEA's Marine Environment Laboratory has been assisting laboratories in Analytical Quality Control Services (AQCS) for the analysis of radionuclides in the marine environment since the early seventies. AQCS through world-wide and regional intercomparison exercises and the provision of reference methods and reference materials (RM) have been recognized as an important component of quality assurance/quality control. A total of 43 intercomparison exercises were organized and 37 RM were produced for marine radioactivity studies. All important marine matrices were covered, e.g., seawater, marine sediments of different chemical compositions, fish, shellfish and seaplants. RM were prepared from samples collected at contaminated sites (e.g., the Irish Sea, the Baltic Sea, the Arabian Sea, Mururoa and Bikini Atolls, etc.) as well as from sites affected only by global fallout (e.g., the Pacific Ocean). Available RM are listed in the IAEA biennial catalogue and can be purchased at a minimal price. An overview of prepared RM for radionuclides in marine matrices is presented and discussed in more detail. (author)

  20. Do Activity Level Outcome Measures Commonly Used in Neurological Practice Assess Upper-Limb Movement Quality?

    Science.gov (United States)

    Demers, Marika; Levin, Mindy F

    2017-07-01

    Movement is described in terms of task-related end point characteristics in external space and movement quality (joint rotations in body space). Assessment of upper-limb (UL) movement quality can assist therapists in designing effective treatment approaches for retraining lost motor elements and provide more detailed measurements of UL motor improvements over time. To determine the extent to which current activity level outcome measures used in neurological practice assess UL movement quality. Outcome measures assessing arm/hand function at the International Classification of Function activity level recommended by neurological clinical practice guidelines were reviewed. Measures assessing the UL as part of a general mobility assessment, those strictly evaluating body function/structure or participation, and paediatric measures were excluded. In all, 15 activity level outcome measures were identified; 9 measures assess how movement is performed by measuring either end point characteristics or movement quality. However, except for the Reaching Performance Scale for Stroke and the Motor Evaluation Scale for Upper Extremity in Stroke Patients, these measures only account for deficits indirectly by giving a partial score if movements are slower or if the person experiences difficulties. Six outcome measures neither assess any parameters related to movement quality, nor distinguish between improvements resulting from motor compensation or recovery of desired movement strategies. Current activity measures may not distinguish recovery from compensation and adequately track changes in movement quality over time. Movement quality may be incorporated into clinical assessment using observational kinematics with or without low-cost motion tracking technology.

  1. Family and Provider/Teacher Relationship Quality: Director Measure

    Science.gov (United States)

    Administration for Children & Families, 2015

    2015-01-01

    The director measure is intended for use with program directors in center-based, family child care, and Head Start/Early Head Start settings for children from birth through five years old. This measure asks respondents general questions about the early childhood education environment, the children enrolled in the program, and how the program…

  2. Influence of mechanical vibrations on the field quality measurements of LHC interaction region quadrupole magnets

    CERN Document Server

    Di Marco, J; Schlabach, P; Sylvester, C D; Tompkins, J C; Krzywinski, J

    2000-01-01

    The high gradient quadrupole magnets being developed by the US-LHC Accelerator Project for the LHC Interaction Regions have stringent field quality requirements. The field quality of these magnets will be measured using a rotating coil system presently under development. Mechanical vibrations of the coil during field quality measurements are of concern because such vibrations can introduce systematic errors in measurement results. This paper presents calculations of the expected influence of vibrations on field quality measurements and a technique to measure vibrations present in data acquired with standard "tangential-style" probes. Measured vibrations are reported and compared to simulations. Limits on systematic errors in multipole measurements are discussed along with implications for probe and measurement system design. (3 refs).

  3. Measuring Service Quality in the Hospitality Industry: A Case Study in Hue City, Vietnam

    OpenAIRE

    Le, Ngoc Liem; Inaba, Yushi

    2015-01-01

    This research is a study on service quality in the hospitality industry in the context of a developing country. The key purposes of this study are twofold. First, it examines the conceptualization and measurement of service quality in the hotel setting. Second, the relationships between service quality, customer satisfaction, and repurchase intention are taken into considerations. The findings from this study confirm that there are three determinants affecting statistically on service quality...

  4. Comparison of Laboratory and Field Remote Sensing Methods to Measure Forage Quality

    OpenAIRE

    Guo, Xulin; Wilmshurst, John F.; Li, Zhaoqin

    2010-01-01

    Recent research in range ecology has emphasized the importance of forage quality as a key indicator of rangeland condition. However, we lack tools to evaluate forage quality at scales appropriate for management. Using canopy reflectance data to measure forage quality has been conducted at both laboratory and field levels separately, but little work has been conducted to evaluate these methods simultaneously. The objective of this study is to find a reliable way of assessing grassland quality ...

  5. Link-quality measurement and reporting in wireless sensor networks.

    Science.gov (United States)

    Chehri, Abdellah; Jeon, Gwanggil; Choi, Byoungjo

    2013-03-04

    Wireless Sensor networks (WSNs) are created by small hardware devices that possess the necessary functionalities to measure and exchange a variety of environmental data in their deployment setting. In this paper, we discuss the experiments in deploying a testbed as a first step towards creating a fully functional heterogeneous wireless network-based underground monitoring system. The system is mainly composed of mobile and static ZigBee nodes, which are deployed on the underground mine galleries for measuring ambient temperature. In addition, we describe the measured results of link characteristics such as received signal strength, latency and throughput for different scenarios.

  6. Link-Quality Measurement and Reporting in Wireless Sensor Networks

    Directory of Open Access Journals (Sweden)

    Byoungjo Choi

    2013-03-01

    Full Text Available Wireless Sensor networks (WSNs are created by small hardware devices that possess the necessary functionalities to measure and exchange a variety of environmental data in their deployment setting. In this paper, we discuss the experiments in deploying a testbed as a first step towards creating a fully functional heterogeneous wireless network-based underground monitoring system. The system is mainly composed of mobile and static ZigBee nodes, which are deployed on the underground mine galleries for measuring ambient temperature. In addition, we describe the measured results of link characteristics such as received signal strength, latency and throughput for different scenarios.

  7. Rigor force responses of permeabilized fibres from fast and slow skeletal muscles of aged rats.

    Science.gov (United States)

    Plant, D R; Lynch, G S

    2001-09-01

    1. Ageing is generally associated with a decline in skeletal muscle mass and strength and a slowing of muscle contraction, factors that impact upon the quality of life for the elderly. The mechanisms underlying this age-related muscle weakness have not been fully resolved. The purpose of the present study was to determine whether the decrease in muscle force as a consequence of age could be attributed partly to a decrease in the number of cross-bridges participating during contraction. 2. Given that the rigor force is proportional to the approximate total number of interacting sites between the actin and myosin filaments, we tested the null hypothesis that the rigor force of permeabilized muscle fibres from young and old rats would not be different. 3. Permeabilized fibres from the extensor digitorum longus (fast-twitch; EDL) and soleus (predominantly slow-twitch) muscles of young (6 months of age) and old (27 months of age) male F344 rats were activated in Ca2+-buffered solutions to determine force-pCa characteristics (where pCa = -log(10)[Ca2+]) and then in solutions lacking ATP and Ca2+ to determine rigor force levels. 4. The rigor forces for EDL and soleus muscle fibres were not different between young and old rats, indicating that the approximate total number of cross-bridges that can be formed between filaments did not decline with age. We conclude that the age-related decrease in force output is more likely attributed to a decrease in the force per cross-bridge and/or decreases in the efficiency of excitation-contraction coupling.

  8. Measuring service quality and its relationship to future consumer behavior.

    Science.gov (United States)

    Headley, D E; Miller, S J

    1993-01-01

    The authors adapt the SERVQUAL scale for medical care services and examine it for reliability, dimensionality, and validity in a primary care clinic setting. In addition, they explore the possibility of a link between perceived service quality--and its various dimensions--and a patient's future intent to complain, compliment, repeat purchase, and switch providers. Findings from 159 matched-pair responses indicate that the SERVQUAL scale can be adapted reliably to a clinic setting and that the dimensions of reliability, dependability, and empathy are most predictive of a patient's intent to complain, compliment, repeat purchase, and switch providers.

  9. Real-time monitoring of emissions with traffic data, simulation and air quality measurements

    NARCIS (Netherlands)

    Klunder, G.A.; Wilmink, I.R.

    2009-01-01

    This paper investigates the possibility to decide when to apply a (dynamic) traffic management measure to improve the air quality or reduce CO2 emissions, based on a limited set of (measured) data. It is expected that a combination of monitoring and modeling is needed for reliable air quality

  10. Specific Remedy for Specific Problem: Measuring Service Quality in South African Higher Education

    Science.gov (United States)

    de Jager, Johan; Gbadamosi, Gbolahan

    2010-01-01

    This study commences a process of developing a scale for the measurement of service quality in higher education in South Africa and also examines the relationship between the measures of service quality on the one hand and some other related variables such as intention to leave the university, trust in management of the university and the overall…

  11. Development of the instrument IMAQE-Food to measure effectiveness of quality management

    NARCIS (Netherlands)

    Spiegel, van der M.; Luning, P.A.; Ziggers, G.W.; Jongen, W.M.F.

    2005-01-01

    Purpose - Manufacturers use several quality assurance systems to assure quality. However, their effectiveness cannot be assessed because an instrument does not exist. This article is based on a study that was set up to identify performance measurement indicators of an instrument that measures

  12. Using image quality measures and features to choose good images for classification of ISAR imagery

    CSIR Research Space (South Africa)

    Steyn, JM

    2014-10-01

    Full Text Available the quality measures and to determine the minimum dwell-time for ISAR image formation. Keywords—ISAR (inverse synthetic aperture radar), Dwell-time, Quality Measure, Image Contrast, Image Entropy, SNR (signal-to-noise ratio), Maritime Vessels ...

  13. Quality assurance programme for environmental radioactivity measurements at the Hong Kong observatory

    International Nuclear Information System (INIS)

    Wong, M.C.; Mok, H.Y.

    1999-01-01

    The Hong Kong Observatory (HKO) runs an Environmental Radiation Monitoring Programme (ERMP) to monitor the environmental radiation levels in Hong Kong. In the ERMP, about 400 environmental samples are delivered to the HKO Radiation Laboratory each year for alpha, beta and gamma measurements. The quality of the radiation measurements is assured through an internal quality assurance programme and inter-laboratory comparison exercises

  14. Measuring customer service quality in international marketing channels: a multimethod approach

    NARCIS (Netherlands)

    Wetzels, M.G.M.; Ruyter, de J.C.; Lemmink, J.G.A.M.; Koelemeijer, K.

    1995-01-01

    The measurement of perceived service quality using the SERVQUAL approach has been criticized by a number of authors recently. This criticism concerns the conceptual basis of this methodology as well as its empirical operationalization. Presents a complementary approach to measuring service quality

  15. Methodology of clinical measures of healthcare quality delivered to patients with cardiovascular diseases

    Directory of Open Access Journals (Sweden)

    Posnenkova O.M.

    2014-03-01

    Full Text Available The results of implementation the methodology proposed by American Colleague of Cardiology and American Heart Association (ACC/AHA for development of Russian clinical quality measures for patients with arterial hypertension, coronary heart disease and chronic heart failure. Created quality measures cover the key elements of medical care influencing directly on clinical outcomes of treatment.

  16. 30 CFR 75.320 - Air quality detectors and measurement devices.

    Science.gov (United States)

    2010-07-01

    ... 30 Mineral Resources 1 2010-07-01 2010-07-01 false Air quality detectors and measurement devices... COAL MINE SAFETY AND HEALTH MANDATORY SAFETY STANDARDS-UNDERGROUND COAL MINES Ventilation § 75.320 Air quality detectors and measurement devices. (a) Tests for methane shall be made by a qualified person with...

  17. Quantitative measurement of holographic image quality using Adobe Photoshop

    International Nuclear Information System (INIS)

    Wesly, E

    2013-01-01

    Measurement of the characteristics of image holograms in regards to diffraction efficiency and signal to noise ratio are demonstrated, using readily available digital cameras and image editing software. Illustrations and case studies, using currently available holographic recording materials, are presented.

  18. Quantitative measurement of holographic image quality using Adobe Photoshop

    Science.gov (United States)

    Wesly, E.

    2013-02-01

    Measurement of the characteristics of image holograms in regards to diffraction efficiency and signal to noise ratio are demonstrated, using readily available digital cameras and image editing software. Illustrations and case studies, using currently available holographic recording materials, are presented.

  19. The measurement of customer service quality as a competitive strategy in an industrial environment

    OpenAIRE

    2012-01-01

    M.Tech. This study deals with the measurement of customer service quality in an industrial environment. The concept was to measure service quality and then develop a competitive strategy based on this. The mechanism used is the SERVQUAL model. Subsequently reengineering aspects of customer service based on the findings is proposed as a competitive advantage. The study is diagnostic in nature offering insights on the application of a well researched service quality model in an industrial en...

  20. Developing risk management dashboards using risk and quality measures: A visual best practices approach.

    Science.gov (United States)

    Bunting, Robert F; Siegal, Dana

    2017-10-01

    Because quality measures are ubiquitous, health care risk management leaders often use them as a proxy for risk management measures. While certain quality measures adequately reflect some aspects of risk management, they are neither a perfect nor complete substitute for well-developed and comprehensive risk management measures. Using a comprehensive approach consisting of quality measures, risk measures, and measures that are less amenable to classification would be the best approach. Identifying the most powerful and informative measures, designing the most appropriate dashboards, and incorporating visual best practices are crucial steps required for evaluating the effectiveness and value of an enterprise risk management program. The authors explain the terms and concepts, review the measures available in the literature, propose new measures, discuss visual best practices, and provide sample dashboard components. © 2017 American Society for Healthcare Risk Management of the American Hospital Association.

  1. 77 FR 50692 - Request for Information on Quality Measurement Enabled by Health IT-Extension Date for Responses

    Science.gov (United States)

    2012-08-22

    ... measure and report electronically enabled quality measures in order to facilitate improvements in the... role (e.g., provider, payer, government, vendor, quality measure developer, quality improvement... quality measures? 8. Many EHR, HIE, and other health IT vendors are developing software code to support...

  2. Review of Image Quality Measures for Solar Imaging

    Science.gov (United States)

    Popowicz, Adam; Radlak, Krystian; Bernacki, Krzysztof; Orlov, Valeri

    2017-12-01

    Observations of the solar photosphere from the ground encounter significant problems caused by Earth's turbulent atmosphere. Before image reconstruction techniques can be applied, the frames obtained in the most favorable atmospheric conditions (the so-called lucky frames) have to be carefully selected. However, estimating the quality of images containing complex photospheric structures is not a trivial task, and the standard routines applied in nighttime lucky imaging observations are not applicable. In this paper we evaluate 36 methods dedicated to the assessment of image quality, which were presented in the literature over the past 40 years. We compare their effectiveness on simulated solar observations of both active regions and granulation patches, using reference data obtained by the Solar Optical Telescope on the Hinode satellite. To create images that are affected by a known degree of atmospheric degradation, we employed the random wave vector method, which faithfully models all the seeing characteristics. The results provide useful information about the method performances, depending on the average seeing conditions expressed by the ratio of the telescope's aperture to the Fried parameter, D/r0. The comparison identifies three methods for consideration by observers: Helmli and Scherer's mean, the median filter gradient similarity, and the discrete cosine transform energy ratio. While the first method requires less computational effort and can be used effectively in virtually any atmospheric conditions, the second method shows its superiority at good seeing (D/r0<4). The third method should mainly be considered for the post-processing of strongly blurred images.

  3. Biometric templates selection and update using quality measures

    Science.gov (United States)

    Abboud, Ali J.; Jassim, Sabah A.

    2012-06-01

    To deal with severe variation in recording conditions, most biometric systems acquire multiple biometric samples, at the enrolment stage, for the same person and then extract their individual biometric feature vectors and store them in the gallery in the form of biometric template(s), labelled with the person's identity. The number of samples/templates and the choice of the most appropriate templates influence the performance of the system. The desired biometric template(s) selection technique must aim to control the run time and storage requirements while improving the recognition accuracy of the biometric system. This paper is devoted to elaborating on and discussing a new two stages approach for biometric templates selection and update. This approach uses a quality-based clustering, followed by a special criterion for the selection of an ultimate set of biometric templates from the various clusters. This approach is developed to select adaptively a specific number of templates for each individual. The number of biometric templates depends mainly on the performance of each individual (i.e. gallery size should be optimised to meet the needs of each target individual). These experiments have been conducted on two face image databases and their results will demonstrate the effectiveness of proposed quality-guided approach.

  4. Implementing for Sustainability: Promoting Use of a Measurement Feedback System for Innovation and Quality Improvement.

    Science.gov (United States)

    Douglas, Susan; Button, Suzanne; Casey, Susan E

    2016-05-01

    Measurement feedback systems (MFSs) are increasingly recognized as evidence-based treatments for improving mental health outcomes, in addition to being a useful administrative tool for service planning and reporting. Promising research findings have driven practice administrators and policymakers to emphasize the incorporation of outcomes monitoring into electronic health systems. To promote MFS integrity and protect against potentially negative outcomes, it is vital that adoption and implementation be guided by scientifically rigorous yet practical principles. In this point of view, the authors discuss and provide examples of three user-centered and theory-based principles: emphasizing integration with clinical values and workflow, promoting administrative leadership with the 'golden thread' of data-informed decision-making, and facilitating sustainability by encouraging innovation. In our experience, enacting these principles serves to promote sustainable implementation of MFSs in the community while also allowing innovation to occur, which can inform improvements to guide future MFS research.

  5. Einstein's Theory A Rigorous Introduction for the Mathematically Untrained

    CERN Document Server

    Grøn, Øyvind

    2011-01-01

    This book provides an introduction to the theory of relativity and the mathematics used in its processes. Three elements of the book make it stand apart from previously published books on the theory of relativity. First, the book starts at a lower mathematical level than standard books with tensor calculus of sufficient maturity to make it possible to give detailed calculations of relativistic predictions of practical experiments. Self-contained introductions are given, for example vector calculus, differential calculus and integrations. Second, in-between calculations have been included, making it possible for the non-technical reader to follow step-by-step calculations. Thirdly, the conceptual development is gradual and rigorous in order to provide the inexperienced reader with a philosophically satisfying understanding of the theory.  Einstein's Theory: A Rigorous Introduction for the Mathematically Untrained aims to provide the reader with a sound conceptual understanding of both the special and genera...

  6. Rigor mortis in an unusual position: Forensic considerations.

    Science.gov (United States)

    D'Souza, Deepak H; Harish, S; Rajesh, M; Kiran, J

    2011-07-01

    We report a case in which the dead body was found with rigor mortis in an unusual position. The dead body was lying on its back with limbs raised, defying gravity. Direction of the salivary stains on the face was also defying the gravity. We opined that the scene of occurrence of crime is unlikely to be the final place where the dead body was found. The clues were revealing a homicidal offence and an attempt to destroy the evidence. The forensic use of 'rigor mortis in an unusual position' is in furthering the investigations, and the scientific confirmation of two facts - the scene of death (occurrence) is different from the scene of disposal of dead body, and time gap between the two places.

  7. Some rigorous results concerning spectral theory for ideal MHD

    International Nuclear Information System (INIS)

    Laurence, P.

    1986-01-01

    Spectral theory for linear ideal MHD is laid on a firm foundation by defining appropriate function spaces for the operators associated with both the first- and second-order (in time and space) partial differential operators. Thus, it is rigorously established that a self-adjoint extension of F(xi) exists. It is shown that the operator L associated with the first-order formulation satisfies the conditions of the Hille--Yosida theorem. A foundation is laid thereby within which the domains associated with the first- and second-order formulations can be compared. This allows future work in a rigorous setting that will clarify the differences (in the two formulations) between the structure of the generalized eigenspaces corresponding to the marginal point of the spectrum ω = 0

  8. Some rigorous results concerning spectral theory for ideal MHD

    International Nuclear Information System (INIS)

    Laurence, P.

    1985-05-01

    Spectral theory for linear ideal MHD is laid on a firm foundation by defining appropriate function spaces for the operators associated with both the first and second order (in time and space) partial differential operators. Thus, it is rigorously established that a self-adjoint extension of F(xi) exists. It is shown that the operator L associated with the first order formulation satisfies the conditions of the Hille-Yosida theorem. A foundation is laid thereby within which the domains associated with the first and second order formulations can be compared. This allows future work in a rigorous setting that will clarify the differences (in the two formulations) between the structure of the generalized eigenspaces corresponding to the marginal point of the spectrum ω = 0

  9. Quality management of nuchal translucency ultrasound measurement in Australia.

    Science.gov (United States)

    Nisbet, Debbie; Robertson, Ann; Mannil, Blessy; Pincham, Vanessa; Mclennan, Andrew

    2018-02-22

    Nuchal translucency measurement has an established role in first trimester screening. Accurate measurement requires that technical guidelines are followed. Performance can be monitored by auditing the distribution of measurements obtained in a series of cases. The primary aim is to develop an accessible, theory-based educational program for individuals whose distribution of measurements at audit falls outside an acceptable range, and assess operator performance following this intervention. Operators whose nuchal translucency measurement distributions fall outside a normal range (38-65% above the median) were expected to undergo a teleconference tutorial. Accessible from anywhere in Australia, the one hour tutorials were run by a senior sonographer (to explain technical ultrasound aspects) and the audit program manager (to explain the audit process). In 2011, 83 operators attended the teleconference tutorials. Compared to a random comparison group of operators meeting standard in 2011, teleconference tutorial attendees were significantly more likely to: (i) operate in rural or regional, rather than metropolitan, centres (P = 0.001); (ii) be less experienced (P audit cycle and was maintained over subsequent years. The mean percentage of the study cohort reaching standard over the five-year audit was 77.8% which was not statistically different from the average for the comparison cohort of all other audited operators (79.3%; P = 0.61). Teleconference tutorials are a convenient, accessible and effective way to obtain immediate and sustained improvement in operator performance. © 2018 The Royal Australian and New Zealand College of Obstetricians and Gynaecologists.

  10. A Rigorous Methodology for Analyzing and Designing Plug-Ins

    DEFF Research Database (Denmark)

    Fasie, Marieta V.; Haxthausen, Anne Elisabeth; Kiniry, Joseph

    2013-01-01

    . This paper addresses these problems by describing a rigorous methodology for analyzing and designing plug-ins. The methodology is grounded in the Extended Business Object Notation (EBON) and covers informal analysis and design of features, GUI, actions, and scenarios, formal architecture design, including...... behavioral semantics, and validation. The methodology is illustrated via a case study whose focus is an Eclipse environment for the RAISE formal method's tool suite....

  11. Striation Patterns of Ox Muscle in Rigor Mortis

    Science.gov (United States)

    Locker, Ronald H.

    1959-01-01

    Ox muscle in rigor mortis offers a selection of myofibrils fixed at varying degrees of contraction from sarcomere lengths of 3.7 to 0.7 µ. A study of this material by phase contrast and electron microscopy has revealed four distinct successive patterns of contraction, including besides the familiar relaxed and contracture patterns, two intermediate types (2.4 to 1.9 µ, 1.8 to 1.5 µ) not previously well described. PMID:14417790

  12. Rigorous Analysis of a Randomised Number Field Sieve

    OpenAIRE

    Lee, Jonathan; Venkatesan, Ramarathnam

    2018-01-01

    Factorisation of integers $n$ is of number theoretic and cryptographic significance. The Number Field Sieve (NFS) introduced circa 1990, is still the state of the art algorithm, but no rigorous proof that it halts or generates relationships is known. We propose and analyse an explicitly randomised variant. For each $n$, we show that these randomised variants of the NFS and Coppersmith's multiple polynomial sieve find congruences of squares in expected times matching the best-known heuristic e...

  13. Reciprocity relations in transmission electron microscopy: A rigorous derivation.

    Science.gov (United States)

    Krause, Florian F; Rosenauer, Andreas

    2017-01-01

    A concise derivation of the principle of reciprocity applied to realistic transmission electron microscopy setups is presented making use of the multislice formalism. The equivalence of images acquired in conventional and scanning mode is thereby rigorously shown. The conditions for the applicability of the found reciprocity relations is discussed. Furthermore the positions of apertures in relation to the corresponding lenses are considered, a subject which scarcely has been addressed in previous publications. Copyright © 2016 Elsevier Ltd. All rights reserved.

  14. Critical Analysis of Strategies for Determining Rigor in Qualitative Inquiry.

    Science.gov (United States)

    Morse, Janice M

    2015-09-01

    Criteria for determining the trustworthiness of qualitative research were introduced by Guba and Lincoln in the 1980s when they replaced terminology for achieving rigor, reliability, validity, and generalizability with dependability, credibility, and transferability. Strategies for achieving trustworthiness were also introduced. This landmark contribution to qualitative research remains in use today, with only minor modifications in format. Despite the significance of this contribution over the past four decades, the strategies recommended to achieve trustworthiness have not been critically examined. Recommendations for where, why, and how to use these strategies have not been developed, and how well they achieve their intended goal has not been examined. We do not know, for example, what impact these strategies have on the completed research. In this article, I critique these strategies. I recommend that qualitative researchers return to the terminology of social sciences, using rigor, reliability, validity, and generalizability. I then make recommendations for the appropriate use of the strategies recommended to achieve rigor: prolonged engagement, persistent observation, and thick, rich description; inter-rater reliability, negative case analysis; peer review or debriefing; clarifying researcher bias; member checking; external audits; and triangulation. © The Author(s) 2015.

  15. Rigor mortis development in turkey breast muscle and the effect of electrical stunning.

    Science.gov (United States)

    Alvarado, C Z; Sams, A R

    2000-11-01

    Rigor mortis development in turkey breast muscle and the effect of electrical stunning on this process are not well characterized. Some electrical stunning procedures have been known to inhibit postmortem (PM) biochemical reactions, thereby delaying the onset of rigor mortis in broilers. Therefore, this study was designed to characterize rigor mortis development in stunned and unstunned turkeys. A total of 154 turkey toms in two trials were conventionally processed at 20 to 22 wk of age. Turkeys were either stunned with a pulsed direct current (500 Hz, 50% duty cycle) at 35 mA (40 V) in a saline bath for 12 seconds or left unstunned as controls. At 15 min and 1, 2, 4, 8, 12, and 24 h PM, pectoralis samples were collected to determine pH, R-value, L* value, sarcomere length, and shear value. In Trial 1, the samples obtained for pH, R-value, and sarcomere length were divided into surface and interior samples. There were no significant differences between the surface and interior samples among any parameters measured. Muscle pH significantly decreased over time in stunned and unstunned birds through 2 h PM. The R-values increased to 8 h PM in unstunned birds and 24 h PM in stunned birds. The L* values increased over time, with no significant differences after 1 h PM for the controls and 2 h PM for the stunned birds. Sarcomere length increased through 2 h PM in the controls and 12 h PM in the stunned fillets. Cooked meat shear values decreased through the 1 h PM deboning time in the control fillets and 2 h PM in the stunned fillets. These results suggest that stunning delayed the development of rigor mortis through 2 h PM, but had no significant effect on the measured parameters at later time points, and that deboning turkey breasts at 2 h PM or later will not significantly impair meat tenderness.

  16. Quality assurance of external exposure measurement for national survey of environmental natural radioactive level

    International Nuclear Information System (INIS)

    Yue Qingyu

    1995-01-01

    This paper summarizes the quality assurance work of external exposure measurement for national survey of environmental natural radioactive level. It mainly introduces instrumentation used in external exposure measurement and its properties, the measurement results of three times of national in-site intercomparison, and in-site sample check results of measurement results from 29 provinces, cities and autonomous regions and Wuhan, Baotou cities

  17. Quality control of the concentration measurement of specific radioactive isotopes

    International Nuclear Information System (INIS)

    Loria, Luis Guillermo; Badilla, Mauricio

    2008-01-01

    The counting efficiency of a gamma spectroscopy chain with a Ge (H.p) detector was measured. The Monte Carlo simulation and standard reference materials, in order to calculate the specific activity from 4 reference materials, and from intercomparison samples were used. The purpose was to evaluate the analytical results obtained in the Laboratorio de Espectroscopia Gamma. (author) [es

  18. Noninvariant Measurement in Rater-Mediated Assessments of Teaching Quality

    Science.gov (United States)

    Kelcey, Ben

    2014-01-01

    Valid and reliable measurement of teaching is essential to evaluating and improving teacher effectiveness and advancing large-scale policy-relevant research in education (Raudenbush & Sadoff, 2008). One increasingly common component of teaching evaluations is the direct observation of teachers in their classrooms. Classroom observations have…

  19. Beam-quality measurements using a spatial light modulator

    CSIR Research Space (South Africa)

    Schulze, C

    2012-11-01

    Full Text Available We present a fast and easy technique for measuring the beam propagation ratio, M2, of laser beams using a spatial light modulator. Our technique is based on digitally simulating the free-space propagation of light, thus eliminating the need...

  20. Comparing farmer and measured assessments of soil quality in Tanzania: Do they align?

    Directory of Open Access Journals (Sweden)

    Allison C. Kelly

    2016-06-01

    Full Text Available Background: There is a wide gap between actual and potential yields for many crops in Sub-Saharan Africa (SSA. Experts identify poor soil quality as a primary constraint to increased agricultural productivity. Therefore, increasing agricultural productivity by improving soil quality is seen as a viable strategy to enhance food security. Yet adoption rates of programs focused on improving soil quality have generally been lower than expected [1], [2]. Results: We explore a seldom considered factor that may limit farmers’ demand for improved soil quality, namely, whether the farmers’ self-assessment of their soil quality match the assessments of soil scientists. In this paper, using data from the Tanzania National Panel Survey (TZNPS, part of the Living Standards Measurement Study – Integrated Surveys on Agriculture (LSMS-ISA, we compare farmers’ own assessments of soil quality with scientific measurements of soil quality from the Harmonized World Soil Database (HWSD. The study found a considerable “mismatch” and most notably, that 11.5 percent of survey households that reported having “good” soil quality are measured by scientific standards to have severely limited nutrient availability. Conclusion: Mismatches between scientific measurements and farmer assessments of soil quality may highlight a potential barrier for programs seeking to encourage farmers to adopt soil quality improvement activities.

  1. Measuring functional service quality using SERVQUAL in a high-dependence health service relationship.

    Science.gov (United States)

    Clark, W Randy; Clark, Leigh Anne

    2007-01-01

    Although there is a growing concern about health care quality, little research has focused on how to measure quality in long-term care settings. In this article, we make the following observations: (1) most users of the SERVQUAL instrument reassess customers' expectations each time they measure quality perceptions; (2) long-term care relationships are likely to be ongoing, dependent relationships; (3) because of this dependence, customers in the long-term care setting are likely to reduce their expectations when faced with poor service quality; (4) by using this "settled" expectations level, service providers may make biased conclusions of quality improvements. We recommend various methods for overcoming or minimizing this "settling" effect and propose modifications to the SERVQUAL gap 5 measure to assess quality in a long-term care setting.

  2. Patients’ perceived value of pharmacy quality measures: a mixed-methods study

    Science.gov (United States)

    Shiyanbola, Olayinka O; Mort, Jane R

    2015-01-01

    Objective To describe patients’ perceived value and use of quality measures in evaluating and choosing community pharmacies. Design Focus group methodology was combined with a survey tool. During the focus groups, participants assessed the value of the Pharmacy Quality Alliance's quality measures in evaluating and choosing a pharmacy. Also, participants completed questionnaires rating their perceived value of quality measures in evaluating a pharmacy (1 being low value and 5 being high) or choosing a pharmacy (yes/no). Thematic analysis and descriptive statistics were used to analyse the focus groups and surveys, respectively. Setting Semistructured focus groups were conducted in a private meeting space of an urban and a rural area of a Mid-western State in the USA. Participants Thirty-four adults who filled prescription medications in community pharmacies for a chronic illness were recruited in community pharmacies, senior centres and public libraries. Results While comments indicated that all measures were important, medication safety measures (eg, drug-drug interactions) were valued more highly than others. Rating of quality measure utility in evaluating a pharmacy ranged from a mean of 4.88 (‘drug-drug interactions’) to a mean of 4.0 (‘absence of controller therapy for patients with asthma’). Patients were hesitant to use quality information in choosing a pharmacy (depending on the participant's location) but might consider if moving to a new area or having had a negative pharmacy experience. Use of select quality measures to choose a pharmacy ranged from 97.1% of participants using ‘drug-drug interactions’ (medication safety measure) to 55.9% using ‘absence of controller therapy for patients with asthma’. Conclusions The study participants valued quality measures in evaluating and selecting a community pharmacy, with medication safety measures valued highest. The participants reported that the quality measures would not typically cause a

  3. Quantity-quality measuring method possibilities in improving operator's learning quality

    International Nuclear Information System (INIS)

    Zvonarev, V.P.

    1984-01-01

    Possibilities of obtainnjng qualitative-quantitative estimations of different aspects of learning process and their application in determination of learning purposes, substantiation of the training program choice of types and forms of studies directed at quality improvement of operator learning are considered

  4. Building Quality Foundations: Indicators and Instruments to Measure the Quality of Vocational Education and Training

    Science.gov (United States)

    Coates, Hamish

    2009-01-01

    Vocational education and training plays a major and increasing role in developing the knowledge and skills that underpin Australia's economy and society. It is vital, accordingly, that training outcomes are of high quality. This paper reports work undertaken to develop a new evidence-based and outcomes-focused national approach to monitoring and…

  5. Ecoflex: Improving air quality with green dynamic traffic management based on real time air quality measurements

    NARCIS (Netherlands)

    Baalen, J. van; Koning, A. de; Voogt, M.; Stelwagen, U.; Turksma, S.

    2011-01-01

    Across the world, air quality regulations are breached due to localized high pollution episodes in specific locations, or "hotspots". Advances in air pollution monitoring techniques enable hotspots to be identified more effectively; however challenges remain as to how best to reduce the incidence

  6. Does adding clinical data to administrative data improve agreement among hospital quality measures?

    Science.gov (United States)

    Hanchate, Amresh D; Stolzmann, Kelly L; Rosen, Amy K; Fink, Aaron S; Shwartz, Michael; Ash, Arlene S; Abdulkerim, Hassen; Pugh, Mary Jo V; Shokeen, Priti; Borzecki, Ann

    2017-09-01

    Hospital performance measures based on patient mortality and readmission have indicated modest rates of agreement. We examined if combining clinical data on laboratory tests and vital signs with administrative data leads to improved agreement with each other, and with other measures of hospital performance in the nation's largest integrated health care system. We used patient-level administrative and clinical data, and hospital-level data on quality indicators, for 2007-2010 from the Veterans Health Administration (VA). For patients admitted for acute myocardial infarction (AMI), heart failure (HF) and pneumonia we examined changes in hospital performance on 30-d mortality and 30-d readmission rates as a result of adding clinical data to administrative data. We evaluated whether this enhancement yielded improved measures of hospital quality, based on concordance with other hospital quality indicators. For 30-d mortality, data enhancement improved model performance, and significantly changed hospital performance profiles; for 30-d readmission, the impact was modest. Concordance between enhanced measures of both outcomes, and with other hospital quality measures - including Joint Commission process measures, VA Surgical Quality Improvement Program (VASQIP) mortality and morbidity, and case volume - remained poor. Adding laboratory tests and vital signs to measure hospital performance on mortality and readmission did not improve the poor rates of agreement across hospital quality indicators in the VA. Efforts to improve risk adjustment models should continue; however, evidence of validation should precede their use as reliable measures of quality. Published by Elsevier Inc.

  7. Clinical Quality Performance Measurement: An Example of a University Hospital

    Directory of Open Access Journals (Sweden)

    Mehmet Nurullah Kurutkan

    2014-06-01

    CONCLUSiON: We determined that The Accountability Measures of the Joint Commission could be applied in the present conditions of Turkey. Only the Pneumonia package needs new requirements to be specified for Turkey. There is no need for a compatibility studies as for the others. Surgical care, heart attack, perinatal and venous thromboembolism packages are the ideal packages for Turkey. [TAF Prev Med Bull 2014; 13(3.000: 201-208

  8. How to Measure Quality of Service Using Unstructured Data Analysis: A General Method Design

    Directory of Open Access Journals (Sweden)

    Lucie Sperková,

    2015-10-01

    Full Text Available The aim of the paper is to design a general method usable for measuring the quality of the service from the customer’s point of view with the help of content analytics. Large amount of unstructured data is created by customers of the service. This data can provide a valuable feedback from the service usage. Customers talk among themselves about their experiences and feelings from consumption of the service. The design of the method is based on a systematic literature review in the area of the service quality and unstructured data analysis. Analytics and quality measurement models are collected and critically evaluated regarding their potential use for measuring IT service quality. The method can be used by IT service provider to measure and monitor service quality based on World-of-Mouth in order to continual service improvement.

  9. Linking Quality and Spending to Measure Value for People with Serious Illness

    Science.gov (United States)

    Rodgers, Phillip E.

    2018-01-01

    Abstract Background: Healthcare payment is rapidly evolving to reward value by measuring and paying for quality and spending performance. Rewarding value for the care of seriously ill patients presents unique challenges. Objective: To evaluate the state of current efforts to measure and reward value for the care of seriously ill patients. Design: We performed a PubMed search of articles related to (1) measures of spending for people with serious illness and (2) linking spending and quality measures and rewarding performance for the care of people with serious illness. We limited our search to U.S.-based studies published in English between January 1, 1960, and March 31, 2017. We supplemented this search by identifying public programs and other known initiatives that linked quality and spending for the seriously ill and extracted key program elements. Results: Our search related to linking spending and quality measures and rewarding performance for the care of people with serious illness yielded 277 articles. We identified three current public programs that currently link measures of quality and spending—or are likely to within the next few years—the Oncology Care Model; the Comprehensive End-Stage Renal Disease Model; and Home Health Value-Based Purchasing. Models that link quality and spending consist of four core components: (1) measuring quality, (2) measuring spending, (3) the payment adjustment model, and (4) the linking/incentive model. We found that current efforts to reward value for seriously ill patients are targeted for specific patient populations, do not broadly encourage the use of palliative care, and have not closely aligned quality and spending measures related to palliative care. Conclusions: We develop recommendations for policymakers and stakeholders about how measures of spending and quality can be balanced in value-based payment programs. PMID:29091529

  10. Examining the Relationship Between Perceived Quality of Care and Actual Quality of Care as Measured by 30-Day Readmission Rates.

    Science.gov (United States)

    Salinas, Stanley R

    To test the relationship between patient experience, as measured by the Hospital Consumer Assessment of Healthcare Providers and Systems (HCAHPS), and actual quality of care, as measured by 30-day readmission rates. Both HCAHPS data and outcome data reported to the Centers of Medicare & Medicaid Services (CMS). This secondary, nationwide (N = 4060), hospital-level study focused only on acute care hospitals. HCAHPS question 22 "Would you recommend this hospital to your friends and family?" was used to determine level of overall satisfaction, and 30-day readmission rates, as reported to the CMS, was used as a proxy for actual quality of care. A statistically significant relationship was found between patient experience and actual quality outcomes. The results of this study reinforce the inclusion of patient experience in Medicare's Value Based Purchasing program as a matter of good public policy.

  11. Using measures to guide the continuous improvement journey: a partnership between quality assurance and toxicology.

    Science.gov (United States)

    Gentry, P E; Sites, D L

    1994-03-01

    It has been said that you cannot improve what you cannot measure. At Eli Lilly and Company, measurement is one of the five pillars of Total Quality. Quality Assurance and Toxicology have partnered in the use of measures to drive improvements in both areas. Quality Assurance and Toxicology have embarked on a journey in Total Quality to achieve customer satisfaction and drive continuous improvement. Measurement in the research and development world has traditionally not been well received. Contrary to popular belief, we have found that many processes can be measured in the research and development environment. Measurement is critical to the continuous improvement of processes because improvements are made using data. In Quality Assurance and Toxicology, the initial measures were put in place to gather baseline data. As we learned from our measures, we customized them to align with all of our processes. This article describes the journey of measuring Quality Assurance and Toxicology, including highlights of implementation strategies and lessons learned along the way.

  12. [Measurement of CO diffusion capacity (II): Standardization and quality criteria].

    Science.gov (United States)

    Salcedo Posadas, A; Villa Asensi, J R; de Mir Messa, I; Sardón Prado, O; Larramona, H

    2015-08-01

    The diffusion capacity is the technique that measures the ability of the respiratory system for gas exchange, thus allowing a diagnosis of the malfunction of the alveolar-capillary unit. The most important parameter to assess is the CO diffusion capacity (DLCO). New methods are currently being used to measure the diffusion using nitric oxide (NO). There are other methods for measuring diffusion, although in this article the single breath technique is mainly referred to, as it is the most widely used and best standardized. Its complexity, its reference equations, differences in equipment, inter-patient variability and conditions in which the DLCO is performed, lead to a wide inter-laboratory variability, although its standardization makes this a more reliable and reproductive method. The practical aspects of the technique are analyzed, by specifying the recommendations to carry out a suitable procedure, the calibration routine, calculations and adjustments. Clinical applications are also discussed. An increase in the transfer of CO occurs in diseases in which there is an increased volume of blood in the pulmonary capillaries, such as in the polycythemia and pulmonary hemorrhage. There is a decrease in DLCO in patients with alveolar volume reduction or diffusion defects, either by altered alveolar-capillary membrane (interstitial diseases) or decreased volume of blood in the pulmonary capillaries (pulmonary embolism or primary pulmonary hypertension). Other causes of decreased or increased DLCO are also highlighted. Copyright © 2014 Asociación Española de Pediatría. Published by Elsevier España, S.L.U. All rights reserved.

  13. Measurement results obtained from air quality monitoring system

    Energy Technology Data Exchange (ETDEWEB)

    Turzanski, P.K.; Beres, R. [Provincial Inspection of Environmental Protection, Cracow (Poland)

    1995-12-31

    An automatic system of air pollution monitoring operates in Cracow since 1991. The organization, assembling and start-up of the network is a result of joint efforts of the US Environmental Protection Agency and the Cracow environmental protection service. At present the automatic monitoring network is operated by the Provincial Inspection of Environmental Protection. There are in total seven stationary stations situated in Cracow to measure air pollution. These stations are supported continuously by one semi-mobile (transportable) station. It allows to modify periodically the area under investigation and therefore the 3-dimensional picture of creation and distribution of air pollutants within Cracow area could be more intelligible.

  14. Measuring the quality of renal care: things to keep in mind when selecting and using quality indicators

    NARCIS (Netherlands)

    van der Veer, Sabine N.; van Biesen, Wim; Couchoud, Cécile; Tomson, Charles R. V.; Jager, Kitty J.

    2014-01-01

    This educational paper discusses a variety of indicators that can be used to measure the quality of care in renal medicine. Based on what aspect of care they reflect, indicators can be grouped into four main categories: structure, process, surrogate outcome and outcome indicators. Each category has

  15. Measuring quality of life in cleft lip and palate patients: currently available patient-reported outcomes measures.

    Science.gov (United States)

    Eckstein, Donna A; Wu, Rebecca L; Akinbiyi, Takintope; Silver, Lester; Taub, Peter J

    2011-11-01

    Patient-reported outcomes in cleft lip and palate treatment are critical for patient care. Traditional surgical outcomes focused on objective measures, such as photographs, anatomic measurements, morbidity, and mortality. Although these remain important, they leave many questions unanswered. Surveys that include aesthetics, speech, functionality, self-image, and quality of life provide more thorough outcomes assessment. It is vital that reliable, valid, and comprehensive questionnaires are available to craniofacial surgeons. The authors performed a literature review to identify questionnaires validated in cleft lip and palate patients. Qualifying instruments were assessed for adherence to guidelines for development and validation by the scientific advisory committee and for content. The authors identified 44 measures used in cleft lip and palate studies. After 15 ad hoc questionnaires, eight generic instruments, 11 psychiatric instruments, and one non-English language questionnaire were excluded, nine measures remained. Of these, four were never validated in the cleft population. Analysis revealed one craniofacial-specific measure (Youth Quality of Life-Facial Differences), two voice-related measures (Patient Voice-Related Quality of Life and Cleft Audit Protocol for Speech-Augmented), and two oral health-related measures (Child Oral Health Impact Profile and Child Oral Health Quality of Life). The Youth Quality of Life-Facial Differences, Child Oral Health Impact Profile, and Child Oral Health Quality of Life questionnaires were sufficiently validated. None was created specifically for clefts, resulting in content limitations. There is a lack of comprehensive, valid, and reliable questionnaires for cleft lip and palate surgery. For thorough assessment of satisfaction, further research to develop and validate cleft lip and palate surgery-specific instruments is needed.

  16. Quality Assessment in Oncology

    International Nuclear Information System (INIS)

    Albert, Jeffrey M.; Das, Prajnan

    2012-01-01

    The movement to improve healthcare quality has led to a need for carefully designed quality indicators that accurately reflect the quality of care. Many different measures have been proposed and continue to be developed by governmental agencies and accrediting bodies. However, given the inherent differences in the delivery of care among medical specialties, the same indicators will not be valid across all of them. Specifically, oncology is a field in which it can be difficult to develop quality indicators, because the effectiveness of an oncologic intervention is often not immediately apparent, and the multidisciplinary nature of the field necessarily involves many different specialties. Existing and emerging comparative effectiveness data are helping to guide evidence-based practice, and the increasing availability of these data provides the opportunity to identify key structure and process measures that predict for quality outcomes. The increasing emphasis on quality and efficiency will continue to compel the medical profession to identify appropriate quality measures to facilitate quality improvement efforts and to guide accreditation, credentialing, and reimbursement. Given the wide-reaching implications of quality metrics, it is essential that they be developed and implemented with scientific rigor. The aims of the present report were to review the current state of quality assessment in oncology, identify existing indicators with the best evidence to support their implementation, and propose a framework for identifying and refining measures most indicative of true quality in oncologic care.

  17. Quality Assessment in Oncology

    Energy Technology Data Exchange (ETDEWEB)

    Albert, Jeffrey M. [Department of Radiation Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas (United States); Das, Prajnan, E-mail: prajdas@mdanderson.org [Department of Radiation Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas (United States)

    2012-07-01

    The movement to improve healthcare quality has led to a need for carefully designed quality indicators that accurately reflect the quality of care. Many different measures have been proposed and continue to be developed by governmental agencies and accrediting bodies. However, given the inherent differences in the delivery of care among medical specialties, the same indicators will not be valid across all of them. Specifically, oncology is a field in which it can be difficult to develop quality indicators, because the effectiveness of an oncologic intervention is often not immediately apparent, and the multidisciplinary nature of the field necessarily involves many different specialties. Existing and emerging comparative effectiveness data are helping to guide evidence-based practice, and the increasing availability of these data provides the opportunity to identify key structure and process measures that predict for quality outcomes. The increasing emphasis on quality and efficiency will continue to compel the medical profession to identify appropriate quality measures to facilitate quality improvement efforts and to guide accreditation, credentialing, and reimbursement. Given the wide-reaching implications of quality metrics, it is essential that they be developed and implemented with scientific rigor. The aims of the present report were to review the current state of quality assessment in oncology, identify existing indicators with the best evidence to support their implementation, and propose a framework for identifying and refining measures most indicative of true quality in oncologic care.

  18. Quality-of-life measures for use within care homes: a systematic review of their measurement properties.

    Science.gov (United States)

    Aspden, Trefor; Bradshaw, Siobhan A; Playford, E Diane; Riazi, Afsane

    2014-09-01

    the aims of this review were (i) to identify quality-of-life (QoL) measures which have had their measurement properties validated in people residing in care homes or nursing homes, and to critically compare and summarise these instruments and (ii) to make recommendations for measurement instruments. bibliographic databases PsycINFO, PubMed, Cochrane, CINAHL and Embase were searched for articles evaluating measurement properties of QoL instruments in people residing in care homes. Methodological quality of studies was assessed using the consensus-based standards for the selection of health measurement instruments checklist. Measurement properties of instruments were appraised using a systematic checklist. the search strategy resulted in 3252 unique citations, of which 15 articles were included in this review. These articles assessed 13 instruments, 8 of which were dementia or Alzheimer specific instruments. The QUALIDEM, a dementia-specific observational instrument, had the widest array of information available on its measurement properties, which were mostly satisfactory. Most measurement instruments lacked information on hypotheses testing and content validity. Information on responsiveness and measurement error was not available for any instrument. for people with dementia living in care homes, the QUALIDEM is recommended for measuring QoL. For residents without dementia, we recommend Kane et al.'s Psychosocial Quality of Life Domains questionnaire. Studies of higher methodological quality, assessing a wider range of measurement properties are needed to allow a more fully informed choice of QoL instrument. © The Author 2014. Published by Oxford University Press on behalf of the British Geriatrics Society. All rights reserved. For Permissions, please email: journals.permissions@oup.com.

  19. Speech Quality Measurement of GSM Infrastructure Built on USRP N210 and OpenBTS Project

    Directory of Open Access Journals (Sweden)

    Marcel Fajkus

    2014-01-01

    Full Text Available The paper deals with the methodology for speech quality measuring in GSM networks using Perceptual Evaluation of Speech Quality (PESQ. The paper brings results of practical measurement of own GSM network build on the Universal Software Radio Peripheral (USRP N210 hardware and OpenBTS software. This OpenBTS station was installed in open terrain, and the speech quality was measured from different distances from the transmitter. The limit parameters of OpenBTS station with USRP N210 were obtained.

  20. A study on measuring the quality of university website

    Directory of Open Access Journals (Sweden)

    Zahra Andalib

    2013-07-01

    Full Text Available During the past few years, many organizations try to provide some of their services through their websites. This would help them provide fast and reliable services to various people around the world. In this paper, we present an empirical survey to measure the relative performance of a university website in Iran using Parasuraman's technological readiness index. The proposed study uses a standard questionnaire and distributes it among 387 active website users and the results are analyzed using structural equation modeling. The proposed study of this paper considers the effects of four factors including efficiency, accessibility, achievement and security on customer loyalty via two variables of trust and satisfaction. The results demonstrate that three components of trust, efficiency and achievement play essential role on customer loyalty.

  1. Measuring quality of delivery in a substance use prevention program.

    Science.gov (United States)

    Giles, Steven; Jackson-Newsom, Julia; Pankratz, Melinda M; Hansen, William B; Ringwalt, Christopher L; Dusenbury, Linda

    2008-11-01

    The purpose of this study was to develop and validate an observation measure designed to capture teachers' use of interactive teaching skills within the delivery of the All Stars substance use prevention program. Coders counted the number of times teachers praised and encouraged students, accepted and used students' ideas, asked questions, self-disclosed personal anecdotes, and corrected student misbehavior. These teacher behaviors loaded on three factors: classroom management, acknowledgment, and student-centered methods. Classroom management was negatively related to student engagement. Acknowledgment was negatively related to students' normative beliefs. Student-centered methods were positively related to student idealism and normative beliefs, and marginally predicted decreases in student marijuana use. Editors' Strategic Implications: The authors provide a promising approach to studying pedagogical prevention approaches, and they also link teaching processes to student outcomes. This study of program delivery should be of general interest (i.e., not limited to substance use prevention) to practitioners and researchers.

  2. Health care quality measures for children and adolescents in Foster Care: feasibility testing in electronic records.

    Science.gov (United States)

    Deans, Katherine J; Minneci, Peter C; Nacion, Kristine M; Leonhart, Karen; Cooper, Jennifer N; Scholle, Sarah Hudson; Kelleher, Kelly J

    2018-02-22

    Preventive quality measures for the foster care population are largely untested. The objective of the study is to identify healthcare quality measures for young children and adolescents in foster care and to test whether the data required to calculate these measures can be feasibly extracted and interpreted within an electronic health records or within the Statewide Automated Child Welfare Information System. The AAP Recommendations for Preventive Pediatric Health Care served as the guideline for determining quality measures. Quality measures related to well child visits, developmental screenings, immunizations, trauma-related care, BMI measurements, sexually transmitted infections and depression were defined. Retrospective chart reviews were performed on a cohort of children in foster care from a single large pediatric institution and related county. Data available in the Ohio Statewide Automated Child Welfare Information System was compared to the same population studied in the electronic health record review. Quality measures were calculated as observed (received) to expected (recommended) ratios (O/E ratios) to describe the actual quantity of recommended health care that was received by individual children. Electronic health records and the Statewide Automated Child Welfare Information System data frequently lacked important information on foster care youth essential for calculating the measures. Although electronic health records were rich in encounter specific clinical data, they often lacked custodial information such as the dates of entry into and exit from foster care. In contrast, Statewide Automated Child Welfare Information System included robust data on custodial arrangements, but lacked detailed medical information. Despite these limitations, several quality measures were devised that attempted to accommodate these limitations. In this feasibility testing, neither the electronic health records at a single institution nor the county level Statewide

  3. Building a Better Measure of School Quality: A New Framework for Measuring School Quality Represents a Fuller Picture of What People Care about in a School

    Science.gov (United States)

    Schneider, Jack; Jacobsen, Rebecca; White, Rachel; Gehlbach, Hunter

    2017-01-01

    When it comes to measuring the quality of a school, policy leaders tend to embrace standardized tests as the go-to indicator, whereas parents and community members tend to rely on reputation, word-of-mouth, and what they perceive with their own eyes. The authors suggest a better approach: a new framework that looks at three categories of inputs…

  4. THE UNCERTAINTIES OF ENVIRONMENT'S PARAMETERS MEASUREMENTS AS TOLLS OF THE MEASUREMENTS QUALITY IMPROVEMENT

    Directory of Open Access Journals (Sweden)

    Miroslav Badida

    2008-06-01

    Full Text Available Identification of the noise measuring uncertainties by declared measured values is unconditionally necessary and required by legislative. Uncertainty of the measurements expresses all errors that accrue during the measuring. B y indication of uncertainties the measure documents that the objective value is with certain probability found in the interval that is bounded by the measurement uncertainty. The paper deals with the methodology of the uncertainty calculation by noise measurements in living and working environments. metal processing industry and building materials industry.

  5. The Level of Power Quality Measurement and Evaluation in A Stone Crusher Plant

    Directory of Open Access Journals (Sweden)

    Mustafa ŞEKKELİ

    2009-03-01

    Full Text Available Both electric utilities and end users of electric power are becoming increasingly concerned about the quality of electric power. Quality of electrical energy in the electrical system that is requested continuous power (uninterrupted power, constant frequency and with constant amplitude can be explained by sinusoidal voltage. Deformation of voltage in the form of sinusoidal waveform is explained as a harmonic. Harmonics are most important factors in decreasing quality of energy in the electrical system. In industrial plants, existence of harmocins and voltage drop, causes serious problems both in plant and network. This problem affects the cost. In this study, a power quality measurements are carried out in stone crusher plant. Harmonics and voltage drop has been measured and evaluated with the power analyzer. In the power quality measurements, harmonic level of the plant is not so bad. However, it is recommended that compensation system with harmonic elimination can be established in plant.

  6. 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...

  7. Quality control for measurement of soil samples containing 237Np and 241Am as radiotracer

    International Nuclear Information System (INIS)

    Sha Lianmao; Zhang Caihong; Song Hailong; Ren Xiaona; Han Yuhu; Zhang Aiming; Chu Taiwei

    2003-01-01

    This paper reports quality control (QC) for the measurement of soil samples containing 237 Np and 241 Am as radiotracers in migration test of transuranic nuclides. All of the QC were done independently by the QA members of analytical work. It mainly included checking 5%-10% of the total analyzed samples; preparing blank samples, blind replicate sample and spiked samples used as quality control samples to check the quality of analytical work

  8. Research on the Implementation of Technological Measures for Controlling Indoor Environmental Quality in Green Residential Buildings

    Science.gov (United States)

    Wang, Ruozhu; Liu, Pengda; Qian, Yongmei

    2018-02-01

    This paper analyzes the design technology of controlling indoor quality in engineering practice, it is proposed that, in framework system of green residential building design, how to realize the design idea of controlling the indoor environment quality, and the design technology with feasibility, including the sunshine and lighting, indoor air quality and thermal environment, sound insulation and noise reduction measures, etc.. The results of all will provide a good theoretical supportting for the design of green residential building.

  9. Measuring patent quality and national technological capacity in cross-country comparison

    OpenAIRE

    Boeing, Philipp; Müller, Elisabeth

    2016-01-01

    China recently surpassed the USA as the greatest global source of patent applications. However, without internationally comparable measures of patent quality it remains questionable whether China's patent expansion constitutes the rise of a new technological superpower. Our novel quality index is based on citations from international search reports and provides internationally comparable, quality-adjusted figures for applications made under the Patent Cooperation Treaty (PCT). We show that Ch...

  10. Nurses' perceptions of feedback to nursing teams on quality measurements: An embedded case study design.

    Science.gov (United States)

    Giesbers, A P M Suzanne; Schouteten, Roel L J; Poutsma, Erik; van der Heijden, Beatrice I J M; van Achterberg, Theo

    2016-12-01

    Providing nursing teams with feedback on quality measurements is used as a quality improvement instrument in healthcare organizations worldwide. Previous research indicated contradictory results regarding the effect of such feedback on both nurses' well-being and performance. Building on the Job Demands-Resources model this study explores: (1) whether and how nurses' perceptions of feedback on quality measurements (as a burdening job demand or rather as an intrinsically or extrinsically motivating job resource) are respectively related to nurses' well-being and performance; and (2) whether and how team reflection influences nurses' perceptions. An embedded case study. Four surgical wards within three different acute teaching-hospital settings in the Netherlands. During a period of four months, the nurses on each ward were provided with similar feedback on quality measurements. After this period, interviews with eight nurses and the ward manager for each ward were conducted. Additionally, observational data were collected from three oral feedback moments on each of the participating wards. The data revealed that individual nurses perceive the same feedback on quality measurements differently, leading to different effects on nurses' well-being and performance: 1) feedback can be perceived as a job demand that pressures nurses to improve the results on the quality measurements; 2) feedback can be perceived as an extrinsically motivating job resource, that is instrumental to improve the results on quality measurements; 3) feedback can be perceived as an intrinsically motivating job resource that stimulates nurses to improve the results on the quality measurements; and 4) feedback can be perceived neither as a job demand, nor as a job resource, and has no effect on nurses' well-being and performance. Additionally, this study indicates that team reflection after feedback seems to be very low in practice, while our data also provides evidence that nursing teams using the

  11. Quality of life in postmenopausal women: translation and validation of MSkinQOL questionnaire to measure the effect of a skincare product in USA.

    Science.gov (United States)

    Segot-Chicq, Evelyne; Fanchon, Chantal

    2013-12-01

    The 28-item Menopausal Skin Quality Of Life (MSkinQOL), a previously validated French questionnaire, developed to assess psychological features of menopausal women and to measure the benefits of using cosmetic skincare products was translated and validated to assess a skincare product in the USA. Construct validity, reliability, reproducibility, and responsiveness were assessed with two groups of 100 nonmenopausal (NM) and 100 postmenopausal (PM) women. The group of PM women applied a specially developed skincare product twice daily for 1 month and filled in the same questionnaire after 1 month as well as a general self-assessment questionnaire about the efficacy and cosmetic properties of the product. No ceiling or floor effects were identified. Construct and internal validity was assessed using a multitrait analysis: questionnaire items proved closely correlated, and each dimension covers a different aspect of women answers profile. The three dimensions showed good reliability and stability. Baseline values for social effects of skin appearance, health status, and self-esteem were significantly different between PM and NM volunteers. Values of these three dimensions were significantly improved after 2 weeks of product application, and further improved after 4 weeks. This study shows that a careful translation and a rigorous process of validation lead to a reliable tool adapted to each country to explore and measure quality of life in healthy PM women. © 2013 Wiley Periodicals, Inc.

  12. Injection quality measurements with diamond based particle detectors

    CERN Document Server

    Stein, Oliver; CERN. Geneva. ATS Department

    2016-01-01

    During the re-commissioning phase of the LHC after the long shutdown 1 very high beam losses were observed at the TDI during beam injection. The losses reached up to 90% of the dump threshold. To decrease the through beam losses induced stress on the accelerator components these loss levels need to be reduced. Measurements with diamond based particle detectors (dBLMs), which have nano-second time resolution, revealed that the majority of these losses come from recaptured SPS beam surrounding the nominal bunch train. In this MD the injection loss patterns and loss intensities were investigated in greater detail. Performed calibration shots on the TDI (internal beam absorber for injection) gave a conversion factor from impacting particles intensities to signal in the dBLMs (0.1Vs/109 protons). Using the SPS tune kicker for cleaning the recaptured beam in the SPS and changing the LHC injection kicker settings resulted in a reduction of the injection losses. For 144 bunch injections the loss levels were decreased...

  13. New rigorous asymptotic theorems for inverse scattering amplitudes

    International Nuclear Information System (INIS)

    Lomsadze, Sh.Yu.; Lomsadze, Yu.M.

    1984-01-01

    The rigorous asymptotic theorems both of integral and local types obtained earlier and establishing logarithmic and in some cases even power correlations aetdeen the real and imaginary parts of scattering amplitudes Fsub(+-) are extended to the inverse amplitudes 1/Fsub(+-). One also succeeds in establishing power correlations of a new type between the real and imaginary parts, both for the amplitudes themselves and for the inverse ones. All the obtained assertions are convenient to be tested in high energy experiments when the amplitudes show asymptotic behaviour

  14. Measuring the Effect of Tourism Services on Travelers' Quality of Life: Further Validation.

    Science.gov (United States)

    Neal, Janet D.; Sirgy, M. Joseph; Uysal, Muzaffer

    2004-01-01

    lication and extension study provided additional validational support of the original tourism services satisfaction measure in relation to QOL-related measures.Neal, Sirgy and Uysal (1999) developed a model and a measure to capture the effect of tourism services on travelers' quality of life (QOL). They hypothesized that travelers' overall life…

  15. Rainwater Quality Measurements in the Area of Bricks Manufacturing at Kajhu Aceh Besar

    Directory of Open Access Journals (Sweden)

    Sarina .

    2015-07-01

    Full Text Available The study of rainwater quality measurement has been done in brick manufacturing area of Kajhu, Aceh Besar. The measurements are taking place in the three different places when the rain fall from the sky in Kajhu area. The physical parameters that will be measured are pH, TDS, conductivity and potential of electricity.

  16. Quality of Life Measurement and Its Use in the Field of Learning Disabilities.

    Science.gov (United States)

    Lefort, Shelley; Fraser, Mary

    2002-01-01

    This article examines issues in the measurement of quality of life (QOL) within the field of learning disabilities. Discussion considers objective and subjective measures, value-based and value-free approaches, and traditional versus participatory approaches. The issue of using self-reports or proxies to gather and measure QOL data is addressed. A…

  17. Influence of Continuing Medical Education on Rheumatologists' Performance on National Quality Measures for Rheumatoid Arthritis.

    Science.gov (United States)

    Sapir, Tamar; Rusie, Erica; Greene, Laurence; Yazdany, Jinoos; Robbins, Mark L; Ruderman, Eric M; Carter, Jeffrey D; Patel, Barry; Moreo, Kathleen

    2015-12-01

    In recent years researchers have reported deficits in the quality of care provided to patients with rheumatoid arthritis (RA), including low rates of performance on quality measures. We sought to determine the influence of a quality improvement (QI) continuing education program on rheumatologists' performance on national quality measures for RA, along with other measures aligned with National Quality Strategy priorities. Performance was assessed through baseline and post-education chart audits. Twenty community-based rheumatologists across the United States were recruited to participate in the QI education program and chart audits. Charts were retrospectively audited before (n = 160 charts) and after (n = 160 charts) the rheumatologists participated in a series of accredited QI-focused educational activities that included private audit feedback, small-group webinars, and online- and mobile-accessible print and video activities. The charts were audited for patient demographics and the rheumatologists' documented performance on the 6 quality measures for RA included in the Physician Quality Reporting System (PQRS). In addition, charts were abstracted for documentation of patient counseling about medication benefits/risks and adherence, lifestyle modifications, and quality of life; assessment of RA medication side effects; and assessment of RA medication adherence. Mean rates of documented performance on 4 of the 6 PQRS measures for RA were significantly higher in the post-education versus baseline charts (absolute increases ranged from 9 to 24% of patient charts). In addition, after the intervention, significantly higher mean rates were observed for patient counseling about medications and quality of life, and for assessments of medication side effects and adherence (absolute increases ranged from 9 to 40% of patient charts). This pragmatic study provides preliminary evidence for the positive influence of QI-focused education in helping rheumatologists improve

  18. Perceptions of nursing care quality, in acute hospital settings measured by the Karen instruments.

    Science.gov (United States)

    Andersson, Inger S; Lindgren, Margareta

    2013-01-01

    The objectives of this study were to measure the quality of nursing care from the perspectives of patients and personnel and to compare these perspectives. The perception of quality in nursing care is affected by patient needs and it is common that patients and personnel disagree on the nature of the quality. Thus, it is important to measure the quality from both perspectives. A total of 95 patients and 120 personnel from surgical and medical wards at a hospital in Sweden participated. The Karen instruments were used for data collection. A scale index was used for comparison of the perspectives. The patients and personnel were satisfied with the quality of care and there were no obvious differences in the total index. The different subscales indicated areas of lower care quality in need of improvement. The quality of the care seemed to be satisfactory from the perspectives of both the patients and the personal. Further analysis from the subscale or a variable level is needed to define areas of lower care quality. Measurements have to be carried out continuously to guarantee care quality over time, as a result of organisational changes and financial cutbacks. © 2012 Blackwell Publishing Ltd.

  19. Why quality of life measurement is important in dermatology clinical practice

    DEFF Research Database (Denmark)

    Finlay, A Y; Salek, M S; Abeni, D

    2017-01-01

    The aim of this study was to describe the many ways in which quality of life (QoL) measurement may potentially be advantageous in routine clinical dermatology practice. Thirteen members of the EADV Task Force on Quality of Life, eight dermatologists, three health psychologists, one epidemiologist...

  20. Distributor– Retailer Interface in Pharmaceutical Supply Chain: Service Quality Measurement Scale

    Science.gov (United States)

    Mehralian, Gholamhossein; Babapour, Jafar; peiravian, farzad

    2016-01-01

    In the current competitive market, service quality management is the key to the survival and success of businesses. SERVQUAL is a popular service quality measurement scale (SQMS) that has served as a basis for subsequent research on service quality; it has been used for testing different aspects of service quality in a market. The purpose of our study is, therefore, to develop a service quality measurement scale (SQMS) for the distributor–retailer interface of Pharm supply chains (PSC) in Iran. A survey was performed to collect data from pharmacies located in Tehran. A valid and reliable questionnaire delivered to pharmacies, and 400 pharmacies were intended to participate in our survey. Confirmatory factor analysis (CFA) was used to develop an SQMS in this study. Sufficient sampling was undertaken to do CFA. Consistent with other service quality studies, this Res developed an SQMS with five dimensions and 20 items for PSC, and contributes to mangers to regularly measure service quality. This is an initial study to develop a framework for measuring service quality in Iranian PCS. The framework can be used effectively to achieve competitive advantage at the distributor–retailer interface. PMID:28243297

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

    NARCIS (Netherlands)

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

    2004-01-01

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

  2. An Evaluation of the Technical Adequacy of a Revised Measure of Quality Indicators of Transition

    Science.gov (United States)

    Morningstar, Mary E.; Lee, Hyunjoo; Lattin, Dana L.; Murray, Angela K.

    2016-01-01

    This study confirmed the reliability and validity of the Quality Indicators of Exemplary Transition Programs Needs Assessment-2 (QI-2). Quality transition program indicators were identified through a systematic synthesis of transition research, policies, and program evaluation measures. To verify reliability and validity of the QI-2, we…

  3. Application of WHOQOL-BREF in measuring quality of life in health-care staff

    Directory of Open Access Journals (Sweden)

    Ali Gholami

    2013-01-01

    Conclusions: The findings from this study confirm that the WHOQOL-BREF questionnaire is a reliable instrument to measure quality of life in health-care staff. From the data, it appears that Neyshabur health-care staff has WHOQOL-BREF scores that might be considered to indicate a relatively moderate quality of life.

  4. The identification and measurement of quality dimensions in health care: focus group interview results.

    Science.gov (United States)

    Jun, M; Peterson, R T; Zsidisin, G A

    1998-01-01

    The identification and measurement of service quality are critical factors that are responsible for customer satisfaction. This article identifies 11 attributes that define quality of care and patient satisfaction and reveals various gaps among the patient, physician, and administrator groups in the perceived importance of those dimensions. Managerial implications for patient-focused health care are discussed.

  5. Forage Quality and Composition Measurements as Predictors of Ethanol Yield from Maize (Zea mays L.) Stover

    Science.gov (United States)

    Improvement of biofeedstock quality for cellulosic ethanol production will be facilitated by inexpensive and rapid methods of evaluation, such as those already employed in the field of ruminant nutrition. Our objective was to evaluate whether forage quality and compositional measurements could be u...

  6. Perceptions of Community College Presidents: Total Quality Management Performance Measures at Their Colleges

    Science.gov (United States)

    Riccardi, Mark T.

    2009-01-01

    Continuous Quality Improvement (CQI) measures such as Total Quality Management (TQM), Strategic Planning, Six Sigma, and the Balanced Scorecard are often met with skepticism among leaders of higher education. This study attempts to fill a gap in the literature regarding the study of relationships among specific variables, or building blocks,…

  7. Distributor- Retailer Interface in Pharmaceutical Supply Chain: Service Quality Measurement Scale.

    Science.gov (United States)

    Mehralian, Gholamhossein; Babapour, Jafar; Peiravian, Farzad

    2016-01-01

    In the current competitive market, service quality management is the key to the survival and success of businesses. SERVQUAL is a popular service quality measurement scale (SQMS) that has served as a basis for subsequent research on service quality; it has been used for testing different aspects of service quality in a market. The purpose of our study is, therefore, to develop a service quality measurement scale (SQMS) for the distributor-retailer interface of Pharm supply chains (PSC) in Iran. A survey was performed to collect data from pharmacies located in Tehran. A valid and reliable questionnaire delivered to pharmacies, and 400 pharmacies were intended to participate in our survey. Confirmatory factor analysis (CFA) was used to develop an SQMS in this study. Sufficient sampling was undertaken to do CFA. Consistent with other service quality studies, this Res developed an SQMS with five dimensions and 20 items for PSC, and contributes to mangers to regularly measure service quality. This is an initial study to develop a framework for measuring service quality in Iranian PCS. The framework can be used effectively to achieve competitive advantage at the distributor-retailer interface.

  8. A Market Based Measure of Credit Quality and Banks' Performance During the Subprime Crisis

    NARCIS (Netherlands)

    Knaup, M.; Wagner, W.B.

    2009-01-01

    We propose a new method for measuring the quality of banks' credit portfolios. This method makes use of information impounded in bank share prices by exploiting differences in their sensitivity to credit default swap spreads of borrowers of varying quality. The method allows us to derive a credit

  9. A Market Based Measure of Credit Quality and Banks' Performance During the Subprime Crisis

    NARCIS (Netherlands)

    Knaup, M.; Wagner, W.B.

    2009-01-01

    We propose a new method for measuring the quality of banks credit portfolios. This method makes use of information impounded in bank share prices by exploiting differences in their sensitivity to credit default swap spreads of borrowers of varying quality. The method allows us to derive a credit

  10. Evaluating Performance Measurement Systems in Nonprofit Agencies: The Program Accountability Quality Scale (PAQS).

    Science.gov (United States)

    Poole, Dennis L.; Nelson, Joan; Carnahan, Sharon; Chepenik, Nancy G.; Tubiak, Christine

    2000-01-01

    Developed and field tested the Performance Accountability Quality Scale (PAQS) on 191 program performance measurement systems developed by nonprofit agencies in central Florida. Preliminary findings indicate that the PAQS provides a structure for obtaining expert opinions based on a theory-driven model about the quality of proposed measurement…

  11. The Need for Context-Sensitive Measures of Educational Quality in Transnational Higher Education

    Science.gov (United States)

    Pyvis, David

    2011-01-01

    This paper argues that the current approach to educational quality formation in transnational higher education promotes educational imperialism, and that guidelines and practices should be altered to embrace context-sensitive measures of quality. The claims are sustained by findings from a study that investigated how academics understood and…

  12. Comparison of laboratory and field remote sensing methods to measure forage quality.

    Science.gov (United States)

    Guo, Xulin; Wilmshurst, John F; Li, Zhaoqin

    2010-09-01

    Recent research in range ecology has emphasized the importance of forage quality as a key indicator of rangeland condition. However, we lack tools to evaluate forage quality at scales appropriate for management. Using canopy reflectance data to measure forage quality has been conducted at both laboratory and field levels separately, but little work has been conducted to evaluate these methods simultaneously. The objective of this study is to find a reliable way of assessing grassland quality through measuring forage chemistry with reflectance. We studied a mixed grass ecosystem in Grasslands National Park of Canada and surrounding pastures, located in southern Saskatchewan. Spectral reflectance was collected at both in-situ field level and in the laboratory. Vegetation samples were collected at each site, sorted into the green grass portion, and then sent to a chemical company for measuring forage quality variables, including protein, lignin, ash, moisture at 135 °C, Neutral Detergent Fiber (NDF), Acid Detergent Fiber (ADF), Total Digestible, Digestible Energy, Net Energy for Lactation, Net Energy for Maintenance, and Net Energy for Gain. Reflectance data were processed with the first derivative transformation and continuum removal method. Correlation analysis was conducted on spectral and forage quality variables. A regression model was further built to investigate the possibility of using canopy spectral measurements to predict the grassland quality. Results indicated that field level prediction of protein of mixed grass species was possible (r² = 0.63). However, the relationship between canopy reflectance and the other forage quality variables was not strong.

  13. Comparison of Laboratory and Field Remote Sensing Methods to Measure Forage Quality

    Directory of Open Access Journals (Sweden)

    Zhaoqin Li

    2010-09-01

    Full Text Available Recent research in range ecology has emphasized the importance of forage quality as a key indicator of rangeland condition. However, we lack tools to evaluate forage quality at scales appropriate for management. Using canopy reflectance data to measure forage quality has been conducted at both laboratory and field levels separately, but little work has been conducted to evaluate these methods simultaneously. The objective of this study is to find a reliable way of assessing grassland quality through measuring forage chemistry with reflectance. We studied a mixed grass ecosystem in Grasslands National Park of Canada and surrounding pastures, located in southern Saskatchewan. Spectral reflectance was collected at both in-situ field level and in the laboratory. Vegetation samples were collected at each site, sorted into the green grass portion, and then sent to a chemical company for measuring forage quality variables, including protein, lignin, ash, moisture at 135 ºC, Neutral Detergent Fiber (NDF, Acid Detergent Fiber (ADF, Total Digestible, Digestible Energy, Net Energy for Lactation, Net Energy for Maintenance, and Net Energy for Gain. Reflectance data were processed with the first derivative transformation and continuum removal method. Correlation analysis was conducted on spectral and forage quality variables. A regression model was further built to investigate the possibility of using canopy spectral measurements to predict the grassland quality. Results indicated that field level prediction of protein of mixed grass species was possible (r2 = 0.63. However, the relationship between canopy reflectance and the other forage quality variables was not strong.

  14. Measurement Matters: Assessing Personal Qualities Other than Cognitive Ability for Educational Purposes

    Science.gov (United States)

    Duckworth, Angela L.; Yeager, David Scott

    2015-01-01

    There has been perennial interest in personal qualities other than cognitive ability that determine success, including self-control, grit, growth mind-set, and many others. Attempts to measure such qualities for the purposes of educational policy and practice, however, are more recent. In this article, we identify serious challenges to doing so.…

  15. Quality of local authority occupational therapy services: developing an instrument to measure the user's perspective.

    NARCIS (Netherlands)

    Calnan, S.; Sixma, H.J.; Calnan, M.W.; Groenewegen, P.P.

    2000-01-01

    The aims of this paper are threefold: (1) to describe the development of an instrument measuring quality of care from the specific perspective of the users of local authority occupational therapy services; (2) to present the results from a survey of users' views about the quality of services offered

  16. Measuring the quality of patient-centered care: why patient-reported measures are critical to reliable assessment

    Directory of Open Access Journals (Sweden)

    Tzelepis F

    2015-06-01

    Full Text Available Flora Tzelepis, Robert W Sanson-Fisher, Alison C Zucca, Elizabeth A FradgleyPriority Research Centre for Health Behaviour, University of Newcastle and Hunter Medical Research Institute, Newcastle, NSW, AustraliaPurpose: The Institute of Medicine (IOM identified patient-centeredness as crucial to quality health care. The IOM endorsed six patient-centeredness dimensions that stipulated that care must be: respectful to patients’ values, preferences, and expressed needs; coordinated and integrated; provide information, communication, and education; ensure physical comfort; provide emotional support; and involve family and friends. Patient-reported measures examine the patient’s perspective and are essential to the accurate assessment of patient-centered care. This article’s objectives are to: 1 use the six IOM-endorsed patient-centeredness dimensions as a framework to outline why patient-reported measures are crucial to the reliable measurement of patient-centered care; and 2 to identify existing patient-reported measures that assess each patient-centered care dimension.Methods: For each IOM-endorsed patient-centeredness dimension, the published literature was searched to highlight the essential role of patients in assessing patient-centered care and informing quality improvement efforts. Existing literature was also searched to identify examples of patient-reported measures that assess each patient-centeredness dimension.Conclusion: Patient-reported measures are arguably the best way to measure patient-centeredness. For instance, patients are best positioned to determine whether care aligns with patient values, preferences, and needs and the Measure of Patient Preferences is an example of a patient-reported measure that does so. Furthermore, only the patient knows whether they received the level of information desired, and if information was understood and can be recalled. Patient-reported measures that examine information provision include

  17. T92-0045: Interlaboratory quality control on Tpot measurements

    International Nuclear Information System (INIS)

    Coucke, P.A.

    1996-01-01

    Purpose/objective: To assess the reproducibility of Tpot measurement by comparison between three laboratories. Materials and methods: We will report on the intercomparison which contains two arms: a single set of data (disc analysis), stained, processed and analysed in Lab 1 has subsequently been analyzed by the team in the Lab 2 and in Lab 3. This kind of comparison reveals differences in interpretation and region setting. Pieces of the original tumor specimen have been processed, stained and analyzed separately in each centre (meat analysis). This latter reveals variation in dissociation, staining and running the sample, but also illustrates tumor heterogeneity. All three laboratories are equipped with a Becton Dickinson FACScan and are using PC-Lysis for analysis. The procedure for handling the sample has been standardized before starting the comparison; guidelines were elaborated for setting the gates. The mathematical algorithm modified from A. Begg has been used. The study consists of 102 specimens from 97 patients with following breakdown: 25 gynecological, 36 head and neck, 35 rectal and 6 pulmonary cancers. In order to compare Tpot-data the method of Bland and Altman has been used which yields limits of agreement. This method gives a better impression on the true correlation between centers as compared to the correlation coefficients. Moreover, it results in a closer estimate of the variation on an individual specimen. The analysis has been done on the 102 specimens but a second analysis has been performed on 89 biopsies, after having excluded outliers, with obvious aberrant values. Results: The Bland and Altman analysis of log Tpot for all 102 samples yields small mean differences (range of logdata 0.004 to 0.151), but large standard deviations (range 0.286 to 0.407 in logdata). Converting the logdata to days yields a mean difference of 1 - day and a standard deviation ranging from 1.9 to 2.6 days. Restricting the analysis to 89 samples (excluding obvious

  18. Air pollution assessment in the Slovak Republic in 2005. Measurement stations of air quality monitoring network

    International Nuclear Information System (INIS)

    Anon

    2006-05-01

    In this Appendix to the report 'Air pollution assessment in the Slovak Republic in 2005' the main characteristics of measurement stations of air quality monitoring network of the Slovak Republic are presented

  19. A Comparison of two measures of quality of life of Nigerian clinic ...

    African Journals Online (AJOL)

    A Comparison of two measures of quality of life of Nigerian clinic patients with ... well-being questionnaire and the WHOQOL-BREF, a generic instrument. ... not influenced by characteristics such as age, gender, marital or educational status.

  20. Harm reduction measures in prison (Methadone treatment and its effects on quality of life promotion

    Directory of Open Access Journals (Sweden)

    Iraj Esmaili

    2009-02-01

    Conclusion: In a look, it is obvious that the harm reduction measures which have been taken for prisoners under the coverage of Methadone treatment will be effective in improving their quality of life conditions.