bluuebunny/crossref_metadata_2025_split huggingface dataset:
Psychometric Properties of the Questionnaire of Sociocultural Influences on the Aesthetic Body Shape Model (CIMEC‐26) in Female Spanish Adolescents
Authors: Jorquera Mercedes , Baños Rosa María , Cebolla Ausiàs , Rasal Paloma , Etchemendy Ernestina 
Published: January 2012

AbstractThe purpose of the present study was to analyse the psychometric properties of the ‘Questionnaire of Sociocultural Influences on the Aesthetic Body Shape Model’ (CIMEC‐26) in a Spanish adolescent population. This questionnaire measures the influence of agents and situations that transmit the current aesthetic model, and assesses environmental influences favouring thinness. The CIMEC‐26 was administered to a sample of 4031 female primary and secondary school students ranging in age from 10 to 17 years (M = 14, SD = 1.34). Results suggested that the CIMEC‐26 has acceptable internal consistency (α = .93). The oldest group (15–17 years) had the highest scores on all factors and the highest total scores, suggesting greater influence of the aesthetic body shape model and higher vulnerability to social pressure to achieve it. Factor analysis suggested three moderately interrelated components of the scale. Confirmatory factor analysis showed that both the three‐factor solution and the original five‐factor structure had good fit indices, although the latter showed the best fit. The CIMEC‐26 proved to be an effective instrument for research on the social influence on the aesthetic body model in female adolescents. Copyright © 2012 John Wiley & Sons, Ltd and Eating Disorders Association.
Efficient generation of adaptive Cartesian mesh for computational fluid dynamics using GPU
Authors: Park Seyoun , Shin Hayong 
Published: January 2012

SUMMARYMesh generation has been frequently the most time consuming step in typical CFD analysis studies. In the past two decades, adaptive Cartesian mesh methods have gained increasing popularity among CFD researches, mainly because of its simplicity and the possibility of automating mesh generation step. In contrast to body‐fitted mesh, cells in Cartesian mesh are aligned with coordinate axes. In adaptive Cartesian mesh, cells near the objects’ boundary are recursively refined using quad‐tree (two‐dimensional) or octree (three‐dimensional). Then, cells intersecting the objects’ boundary are clipped by the surfaces, leaving numerous small irregular shaped cells, called cut‐cells. Most of the computational efforts required to generate adaptive Cartesian mesh is concentrated on the cut‐cell clipping operation. To achieve the computational accuracy in the subsequent numerical solver, the number of cut‐cells can be easily over millions, demanding substantial amount of computation time. Reducing mesh generation time matters more especially for unsteady flow simulation involving moving objects, which requires frequent regeneration of meshes for varied postures of the object. In this paper, we report an efficient novel approach to generating adaptive Cartesian mesh by parallelization using the graphics processing unit. The proposed method consists of the following three steps: (1) computing cross‐sectional curves of object boundary, (2) octree refinement based on the section curves, and (3) cut‐cell clipping. Because each step is designed to be highly parallelizable, we also implemented it on a graphics processing unit, showing orders of magnitude faster performance than the CPU version. Copyright © 2012 John Wiley & Sons, Ltd.
Lattice‐Boltzmann and meshless point collocation solvers for fluid flow and conjugate heat transfer
Authors: Kalarakis A.N. , Bourantas G.C. , Skouras E.D. , Loukopoulos V.C. , Burganos V.N. 
Published: January 2012

SUMMARYThe applicability and performance of the lattice‐Boltzmann (LB) and meshless point collocation methods as CFD solvers in flow and conjugate heat transfer processes are investigated in this work. Lid‐driven cavity flow and flow in a slit with an obstacle including heat transfer are considered as case studies. A comparison of the computational efficiency accuracy of the two methods with that of a finite volume method as implemented in a commercial package (ANSYS CFX, ANSYS Inc., Canonsburg, PA) is made. Utilizing the analogy between heat and mass transfer, an advection–diffusion LB model was adopted to simulate the heat transfer part of the slit flow problem followed by a rigorous mapping of the mass transfer variables to the heat transfer quantities of interest, thus circumventing the need for a thermal LB model. Direct comparison among the results of the three methods revealed excellent agreement over a wide range of Reynolds and Prandtl number values. Furthermore, an integrated computational scheme is proposed, utilizing the rapid convergence of the LB model in the flow part of the conjugate heat transfer problem with that of the meshless collocation method for the heat transfer part. The meshless treatment remains sufficiently rapid even for conduction‐controlled processes in contrast to the LB method, which is very rapid in the convection‐controlled case only. A single, common computational grid, composed of regularly distributed nodes is used, saving significant computational and coding time and ensuring convergence of the discrete Laplacian operator in the heat transfer part of the computations. Copyright © 2012 John Wiley & Sons, Ltd.
THE PRICE SENSITIVITY OF MEDICARE BENEFICIARIES: A REGRESSION DISCONTINUITY APPROACH
Authors: Buchmueller Thomas C. , Grazier Kyle , Hirth Richard A. , Okeke Edward N. 
Published: January 2012

ABSTRACTWe use 4 years of data from the retiree health benefits program of the University of Michigan to estimate the effect of price on the health plan choices of Medicare beneficiaries. During the period of our analysis, changes in the University's premium contribution rules led to substantial price changes. A key feature of this ‘natural experiment’ is that individuals who had retired before a certain date were exempted from having to pay any premium contributions. This ‘grandfathering’ creates quasi‐experimental variation that is ideal for estimating the effect of price. Using regression discontinuity methods, we compare the plan choices of individuals who retired just after the grandfathering cutoff date and were therefore exposed to significant price changes to the choices of a ‘control group’ of individuals who retired just before that date and therefore did not experience the price changes. The results indicate a statistically significant effect of price, with a $10 increase in monthly premium contributions leading to a 2 to 3 percentage point decrease in a plan's market share. Copyright © 2012 John Wiley & Sons, Ltd.
TESTING PROCEDURAL INVARIANCE IN THE CONTEXT OF HEALTH
Authors: Oliver Adam 
Published: January 2012

ABSTRACTViolations of procedural invariance, epitomised by ‘classic’ preference reversals, have been observed for more than 40 years, and yet the study of this phenomenon in health remains nascent. This is an oversight because such violations pose a challenge to health economics, where choice and valuation methodologies often are used interchangeably. This article reports two experiments that aim to test for preference reversals over outcomes defined by health status, using both ‘open’ and ‘assisted’ valuation procedures. Although systematic preference reversals in the direction generally reported in the literature were not observed, the rates of non‐systematic reversal were substantial, measuring 35–40%. By analysing the respondents’ explanations for their answers, it is clear that many of them used heuristics to answer the questions, and they may have good reasons to do so, which undermines the notion that preferences are always fixed and stable. These results, and others like it, pose a challenge to those who unquestioningly assume procedural invariance and maintain that population preferences should be used to inform health policy. Copyright © 2012 John Wiley & Sons, Ltd.
Exploring supportive and developmental career management through business strategies and coaching
Authors: Segers Jesse , Inceoglu Ilke 
Published: January 2012

AbstractThe shift toward individualistic career management requires a supportive and developmental career approach. Using coaching practices as a manifestation of such an approach, this study reports on coaching and other career practices that are part of supportive and developmental career management in a Belgium sample (n = 154). Three other types of career management were identified as well. Supportive and developmental career management was most present in organizations that had a past or current prospector strategy, and was the least present in past or current defenders. The type of business strategy organizations indicated to pursue in the future did not have an influence on the type of career management they currently had. © 2012 Wiley Periodicals, Inc.
Retracted: Effect of blonanserin on cognitive function in antipsychotic‐naïve first‐episode schizophrenia
Authors: Tenjin Tomomi , Miyamoto Seiya , Miyake Nobumi , Ogino Shin , Kitajima Rei , Ojima Kazuaki , Arai Jun , Teramoto Haruki , Tsukahara Sachiko , Ito Yukie , Tadokoro Masanori , Anai Kiriko , Funamoto Yasuyuki , Kaneda Yasuhiro , Sumiyoshi Tomiki , Yamaguchi Noboru 
Published: January 2012

ObjectiveThe purpose of this study was to evaluate the effects of blonanserin, a novel antipsychotic, on cognitive function in first‐episode schizophrenia.MethodsTwenty‐four antipsychotic‐naïve patients with first‐episode schizophrenia participated in the study. Blonanserin was given in an open‐label design for 8 weeks. The Brief Assessment of Cognition in Schizophrenia—Japanese language version (BACS‐J) was administered as the primary outcome measure at baseline and 8 weeks. Clinical evaluation included the Positive and Negative Syndrome Scale (PANSS), the Schizophrenia Quality of Life Scale—Japanese language version (SQLS‐J), and the Clinical Global Impression—Severity of Illness Scale (CGI‐S). To exclude the possibility of retest effects on the BACS‐J, 10 age‐matched patients with chronic schizophrenia treated with blonanserin were tested at baseline and after an 8‐week interval.ResultsTwenty first‐episode patients completed the study. Repeated measures analysis of covariance revealed a significant group‐by‐time interaction effect on the letter fluency task due to better performance in the first‐episode group, but not in the control group. Main effect of time or group‐by‐time interaction effect on the Tower of London task was not significant; however, the first‐episode group, but not the control group, showed substantial improvement with a moderate effect size. All items on the PANSS, SQLS‐J, and CGI‐S significantly improved after 8 weeks of treatment.ConclusionsThese results suggest that blonanserin improves some types of cognitive function associated with prefrontal cortical function. Copyright © 2012 John Wiley & Sons, Ltd.
The Manso Glacier drainage system in the northern Patagonian Andes: an overview of its main hydrological characteristics
Authors: Pasquini Andrea I. , Lecomte Karina L. , Depetris Pedro J. 
Published: January 2012

AbstractThe Manso Glacier (~41°S, 72°W), in the northern Patagonian Andes of Argentina, is a regenerated glacier that, like many other glaciers in the region and elsewhere, has been showing a significant retreat. Glacial melt water feeds the Manso Superior River, which, before crossing the Andes to reach a Pacific outfall, flows through the Mascardi (a deep, oligotrophic and monomictic lake) and significantly smaller Hess and Steffen lakes. Harmonic analysis of Mascardi's lake level series suggests that the El Niño‐Southern Oscillation signal has been strong during the 1985–1995 decade but has grown weaker during the initial decade of the 21st century. Hydrological trend analyses applied in data recorded in the uppermost reaches show a monthly and annual decreasing trend in the Manso Superior River discharge series and Mascardi's lake level, which are connected with both, decreasing melt water discharge and (austral) wintertime atmospheric precipitation. Downstream, the decreasing signal initially looses statistical significance and then, when flowing through Steffen Lake, reverses the lake level trend that becomes significantly positive. This suggests that, on its way to the Pacific Ocean, the Manso River receives abundant Andean snow melt water and atmospheric precipitation, which are sufficient to obliterate the negative trend recorded in the uppermost reaches. The reason for this local phenomenon is that the Manso is an antecedent river (aka superposed stream), and hence, the valley crossing the Andes allows the incursion of Pacific humidity that modifies the hydrological regime several hundred kilometres inland. Copyright © 2012 John Wiley & Sons, Ltd.
Assessment of hydrologic impacts of climate change in Tunga–Bhadra river basin, India with HEC‐HMS and SDSM
Authors: Meenu R. , Rehana S. , Mujumdar P. P. 
Published: January 2012

AbstractClimate change would significantly affect many hydrologic systems, which in turn would affect the water availability, runoff, and the flow in rivers. This study evaluates the impacts of possible future climate change scenarios on the hydrology of the catchment area of the Tunga–Bhadra River, upstream of the Tungabhadra dam. The Hydrologic Engineering Center's Hydrologic Modeling System version 3.4 (HEC‐HMS 3.4) is used for the hydrological modelling of the study area. Linear‐regression‐based Statistical DownScaling Model version 4.2 (SDSM 4.2) is used to downscale the daily maximum and minimum temperature, and daily precipitation in the four sub‐basins of the study area. The large‐scale climate variables for the A2 and B2 scenarios obtained from the Hadley Centre Coupled Model version 3 are used. After model calibration and testing of the downscaling procedure, the hydrological model is run for the three future periods: 2011–2040, 2041–2070, and 2071–2099. The impacts of climate change on the basin hydrology are assessed by comparing the present and future streamflow and the evapotranspiration estimates. Results of the water balance study suggest increasing precipitation and runoff and decreasing actual evapotranspiration losses over the sub‐basins in the study area. Copyright © 2012 John Wiley & Sons, Ltd.
Loss of HLA class I and mismatch repair protein expression in sporadic endometrioid endometrial carcinomas
Authors: de Jong Renske A. , Boerma Annemarie , Boezen H. Marike , Mourits Marian J.E. , Hollema Harry , Nijman Hans W. 
Published: January 2012

AbstractTumor cells can escape from cytotoxic T‐cell responses by downregulation of human leukocyte antigen (HLA) class I molecules expressed at the cell surface which has been associated with a deficient mismatch repair (MMR) system in colorectal carcinomas. Our study investigated the association between expression of MMR proteins and HLA class I in sporadic endometrioid endometrial carcinomas (EC). In a consecutively selected cohort of 486 EC patients, MMR proteins (MLH1, MSH2 and MSH6) and HLA class I (HLA‐A, ‐B, ‐C or β2m) were investigated by immunohistochemistry. Expression levels of MMR proteins and HLA class I were compared between low‐grade and high‐grade ECs. HLA class I expression was compared between tumors with loss (negative immunostaining of ≥1 MMR protein) and expression of MMR proteins. Associations between previously determined numbers of intratumoral CD8+ T‐lymphocytes and expression of MMR proteins and HLA class I and the influence on survival was determined. ECs with loss of MMR protein expression (33.5%) more frequently have loss of HLA‐B/C (37.3%), compared to ECs with MMR protein expression (25.5%, p = 0.007). Patients with loss of MMR proteins have a worse disease‐specific survival compared to patients with expression (p = 0.039). CD8+ T‐lymphocytes have a positive influence on disease‐free and disease‐specific survival in the total EC cohort but not in patients with loss of MMR protein expression. In conclusion, our results indicate that loss of MMR protein expression is related to selective downregulation of HLA class I which contributes to immune escape in EC with an abnormal MMR system.
COMPARISON OF METHODS FOR THE VALUATION OF IRRIGATION WATER: CASE STUDY FROM QAZVIN, IRAN
Authors: Jaghdani Tinoush Jamali , Brümmer Bernhard , Barkmann Jan 
Published: January 2012

ABSTRACTPhysical availability and adequate distribution of irrigation water are two globally pressing resource management issues. In the long run, the design of irrigation infrastructure should be based on the economic value of irrigation water, taking into account a full analysis of all associated costs and benefits. In the absence of water markets, non‐market valuation methods need to be employed to assess the economic value of irrigation water. A multitude of valuation methods are available, which often differ substantially in their results. We compare three different methods using primary data collected from the Qazvin irrigation network in Iran. We compare economic values based on contingent valuation (197 rial m‾3), the value of marginal product (430/476 rial m‾3 depending on functional form assumptions), and change in net rent (1080 rial m‾3). The hypothetical nature of the contingent valuation and the presence of strategic responses may have resulted in understatements of the true water values. Thus, a stochastic frontier analysis was used to correct for undervaluation bias, which is estimated at 272 rial m‾3. Our results suggest that actual water prices fall substantially short of the estimated economic values in the Qazvin irrigation network: higher water prices would hence improve the allocation of water. Copyright © 2012 John Wiley & Sons, Ltd.
The role of PGC‐1 coactivators in aging skeletal muscle and heart
Authors: Dillon Lloye M. , Rebelo Adriana P. , Moraes Carlos T. 
Published: January 2012

AbstractAging is the progressive decline in cellular, tissue, and organ function. This complex process often manifests as loss of muscular strength, cardiovascular function, and cognitive ability. Mitochondrial dysfunction and decreased mitochondrial biogenesis are believed to participate in metabolic abnormalities and loss of organ function, which will eventually contribute to aging and decreased lifespan. In this review, we discuss what is currently known about mitochondrial dysfunction in the aging skeletal muscle and heart. We focused our discussion on the role of PGC‐1 coactivators in the regulation of mitochondrial biogenesis and function and possible therapeutic benefits of increased mitochondrial biogenesis in compensating for mitochondrial dysfunction and circumventing aging and aging‐related diseases. © 2012 IUBMB IUBMB Life, 2012
Influence of acute preload changes on mitral annulus velocity measured by tissue Doppler echocardiography in critically ill patients
Authors: Quintard Hervé , Muller Laurent , Philip Ivan , Lena Pierre , Ichai Carole 
Published: January 2012

AbstractAim.The assessment of diastolic function remains difficult in critical care patients because of unstable preload conditions. Described as fairly insensitive to preload changes, tissue Doppler velocity measurement at the lateral mitral annulus (e′ lat) may help evaluate diastolic function. Our aim was to prospectively evaluate e′ lat changes in relation to fluid expansion in critically ill patients.Methods.This prospective observational study was conducted in critically ill, mechanically ventilated, patients in sinus rhythm without previously known cardiac disease. Echocardiography was performed before and 1 hour after a fluid challenge (infusion of Gelofusine 500 ml in 30 minutes). Conventional pulsed wave Doppler indices of left ventricular diastolic function and tissue Doppler velocity lateral (e′ lat) and septal (e′ sept) mitral annulus velocity were measured, whereas hemodynamic data were simultaneously collected.Results.Twenty patients (age, 55 ± 15 years; Simplified Acute Physiology Score II, 45 ± 10) were enrolled. Systolic function was preserved in all patients. Cardiac index increased (p < 0.05), as did early diastolic mitral velocity (E wave) (p = 0.001), and e′ lat and e′ sept (p = 0.02) after fluid challenge.Conclusions.This study confirms the preload dependence and limited clinical usefulness of most Doppler variables, such as e′ lat, to evaluate diastolic function in intensive care unit patients. Indices, such as E/e′, may be of interest in these cases. © 2012 Wiley Periodicals, Inc. J Clin Ultrasound 40:419–423, 2012
Black‐blood steady‐state free precession (SSFP) coronary wall MRI for cardiac allografts: A feasibility study
Authors: Lin Kai , Bi Xiaoming , Liu Ying , Taimen Kirsi , Lu Biao , Li Debiao , Carr James 
Published: January 2012

AbstractPurpose:To assess the hypothesis that steady‐state free procession (SSFP) allows for imaging of the coronary wall under the conditions of fast heart rate in heart transplantation (HTx) patients.Materials and Methods:With the approval of our Institutional Review Board, 28 HTx patients were scanned with a 1.5T scanner. Cross‐sectional black‐blood images of the proximal portions of the left main artery, left anterior descending artery, and right coronary artery were acquired with both a 2D, double inversion recovery (DIR) prepared turbo (fast) spin echo (TSE) sequence and a 2D DIR SSFP sequence. Image quality (scored 0–3), vessel wall area, thickness, signal‐to‐noise ratio (SNR, vessel wall), and contrast‐to‐noise ratio (CNR, wall‐lumen) were compared between TSE and SSFP.Results:The overall image quality of SSFP was higher than TSE (1.23 ± 0.95 vs. 0.88 ± 0.69, P < 0.001). SSFP had a higher coronary wall SNR (20.1 ± 8.5 vs. 14.9 ± 4.8, P < 0.001) and wall‐lumen CNR (8.2 ± 4.6 vs. 6.8 ± 3.7, P = 0.005) than TSE.Conclusion:Black‐blood SSFP coronary wall MRI provides higher image quality, SNR, and CNR than traditional TSE does in HTx recipients. It has the potential to become an alternative means to noninvasive imaging of cardiac allografts. J. Magn. Reson. Imaging 2012;35:1210‐1215. © 2012 Wiley Periodicals, Inc.