bluuebunny/crossref_metadata_2025_split huggingface dataset:
The effect of signage and emotions on satisfaction with the servicescape: An empirical investigation in a healthcare service setting
Authors: Vigolo Vania , Bonfanti Angelo , Sallaku Rezarta , Douglas Jackie 
Published: December 2019

AbstractMarketing and environmental psychology studies have long emphasized the importance of signage in large and dispersive service settings but have focused little on utilitarian service contexts. Previous studies have also analyzed the role of emotions in customer satisfaction with the servicescape, particularly in hedonic service environments such as malls, hotels, and restaurants, but a limited research has been conducted on the role of emotions in utilitarian service settings such as healthcare services. This study draws from the environmental psychology and service marketing literature to investigate the effects of signage and emotions on satisfaction with the servicescape in the hospital setting. In addition, it explores the moderating effect of emotions on the relationship between signage and satisfaction with the servicescape. The findings show that signage has a positive and significant effect on satisfaction with the servicescape. Negative emotions have a significant negative effect on satisfaction, while positive emotions have no significant effect. Differently from what was expected, emotions do not moderate the relationship between signage and satisfaction. Managerial implications are provided for service managers who wish to design a utilitarian service setting to effectively increase user satisfaction with the servicescape.
Differential 2.4‐GHz CMOS power amplifier using stacked NMOS, transformer, and PMOS structures to enhance reliability
Authors: Ko Gayeon , Lee Milim , Park Joung‐Hu , Park Changkun 
Published: December 2019

AbstractIn this work, we propose a power amplifier using a stacked NMOS, transformer, and a PMOS structure to enhance the reliability of CMOS power amplifiers. The power stage of the amplifier is separated into NMOS and PMOS amplifier stages to moderate the peak voltages at the drains of each NMOS and PMOS. The power generated in the 2 amplifier stages is combined in the transformer, which has 2 primary parts and 1 secondary part. To verify the functionality of the structure, we designed a 2.4‐GHz differential CMOS power amplifier for IEEE 802.11n WLAN applications with 64 quadrature amplitude modulation, 9.6 dB peak‐to‐average power ratio, and a bandwidth of 20 MHz. The designed power amplifier is fabricated using the 180‐nm silicon‐on‐insulator RF CMOS process. The measured maximum linear output power is 17.88 dBm with a gain of 24.34 dB.
Beta‐ray imaging system with γ‐ray coincidence for multiple‐tracer imaging
Authors: Fukuchi Tomonori , Yamamoto Seiichi , Kataoka Jun , Kamada Kei , Yoshikawa Akira , Watanabe Yasuyoshi , Enomoto Shuichi 
Published: December 2019

PurposeBeta‐ray imaging systems are widely used for various biological objects to obtain a two‐dimensional (2D) distribution of β‐ray emitting radioisotopes. However, a conventional β‐ray imaging system is unsuitable for multiple‐tracer imaging, because the continuous energy distribution of β‐rays complicates distinguishing among different tracers by energy information. Therefore, we developed a new type of β‐ray imaging system, which is useful for multiple tracers by detecting coincidence γ‐rays with β‐rays, and evaluated its imaging performance.MethodsOur system is composed of position‐sensitive β‐ray and γ‐ray detectors. The former is a 35 × 35 × 1‐mm3 Ce‐Doped((La, Gd)2Si2O7) (La‐GPS) scintillation detector, which has a 300‐µm pitch of pixels. The latter is a 43 × 43 × 16‐mm3 bismuth germanium oxide (BGO) scintillation detector. Both detectors are mounted on a flexible frame and placed in a user‐selectable position. We experimentally evaluated the performance of the β‐ray detector and the γ‐ray efficiencies of the γ‐ray detector with different energies, positions, and distances. We also conducted point sources and phantom measurements with dual isotopes to evaluate the system performance of multiple‐tracer imaging.ResultsFor the β‐ray detector, the β‐ray detection efficiencies for 45Ca (245‐keV maximum energy) and 90Sr/90Y (545 and 2280‐keV maximum energy) were 14.3% and 21.9%, respectively. The total γ‐ray detection efficiency of the γ‐ray detector for all γ‐rays from 22Na (511‐keV annihilation γ‐rays and a 1275‐keV γ‐ray) in the center position with a detector distance of 20 mm was 17.5%. From a point‐source measurement using 22Na and 90Sr/90Y, we successfully extracted the position of a positron‐γ emitter 22Na. Furthermore, for a phantom experiment using 45Ca and 18F or 18F and 22Na, we successfully extracted the distribution of the second tracer using the annihilation γ‐ray or de‐excitation γ‐ray coincidence. In all the imaging experiments, the event counts of the extracted images were consistent with the counts estimated by the measured γ‐ray efficiencies.ConclusionsWe successfully demonstrated the feasibility of our β‐ray autoradiography system for imaging multiple isotopes. Since our system can identify not only a β‐γ emitter but also a positron emitter using the coincidence detection of annihilation γ‐rays, it is useful for PET tracers and various new applications that are otherwise impractical.
The effect of spiral trajectory correction on pseudo‐continuous arterial spin labeling with high‐performance gradients on a compact 3T scanner
Authors: Kang Daehun , Yarach Uten , In Myung‐Ho , Gray Erin M. , Trzasko Joshua D. , Jo Hang Joon , Shu Yunhong , Huston John , Bernstein Matt A. 
Published: December 2019

PurposeTo demonstrate the feasibility of pseudo‐continuous arterial‐spin–labeled (pCASL) imaging with 3D fast‐spin‐echo stack‐of‐spirals on a compact 3T scanner (C3T), to perform trajectory correction for eddy‐current–induced deviations in the spiral readout of pCASL imaging, and to assess the correction effect on perfusion‐related images with high‐performance gradients (80 mT/m, 700T/m/s) of the C3T.MethodsTo track eddy‐current–induced artifacts with Archimedean spiral readout, the spiral readout in pCASL imaging was performed with 5 different peak gradient slew rate (Smax) values ranging from 70 to 500 T/m/s. The trajectory for each Smax was measured using a dynamic field camera and applied in a density‐compensated gridding image reconstruction in addition to the nominal trajectory. The effect of the trajectory correction was assessed with perfusion‐weighted (ΔM) images and proton‐density–weighted images as well as cerebral blood flow (CBF) maps, obtained from 10 healthy volunteers.ResultsBlurring artifact on ΔM images was mitigated by the trajectory correction. CBF values on the left and right calcarine cortices showed no significant difference after correction. Also, the signal‐to‐noise ratio of ΔM images improved, on average, by 7.6% after correction (P < .001). The greatest improvement of 12.1% on ΔM images was achieved with a spiral readout using Smax of 300~400 T/m/s.ConclusionEddy currents can cause spiral trajectory deviation, which leads to deformation of the CBF map even in cases of low value Smax. The trajectory correction for spiral‐readout–based pCASL produces more reliable results for perfusion imaging. These results suggest that pCASL is feasible on C3T with high‐performance gradients.
Stably computing the multiplicity of known roots given leading coefficients
Authors: Clark Gregory J. , Cooper Joshua N. 
Published: December 2019

SummaryWe show that a monic univariate polynomial over a field of characteristic zero, with k distinct nonzero known roots, is determined by precisely k of its proper leading coefficients. Furthermore, we give an explicit, numerically stable algorithm for computing the exact multiplicities of each root over
. We provide a version of the result and accompanying algorithm when the field is not algebraically closed by considering the minimal polynomials of the roots. Then, we demonstrate how these results can be used to obtain the full homogeneous spectra of symmetric tensors—in particular, complete characteristic polynomials of hypergraphs.
Population‐Based Study of Traffic‐Related Air Pollution and Obesity in Mexican Americans
Authors: Zhang Xueying , Zhao Hua , Chow Wong‐Ho , Bixby Moira , Durand Casey , Markham Christine , Zhang Kai 
Published: December 2019

ObjectiveThe purpose of this study was to assess the cross‐sectional association between residential exposure to traffic‐related air pollution and obesity in Mexican American adults.MethodsA total of 7,826 self‐reported Mexican Americans aged 20 to 60 years old were selected from the baseline survey of the MD Anderson Mano‐a‐Mano Mexican American Cohort. Concentrations of traffic‐related particulate matter with aerodynamic diameter  < 2.5 μm were modeled at geocoded residential addresses using a dispersion models. The residential proximity to the nearest major road was calculated using a Geographic Information System. Linear and logistic regression models were used to estimate the adjusted associations between exposure and obesity, defined as BMI ≥ 30.ResultsMore than half (53.6%) of the study participants had BMI ≥ 30, with a higher prevalence in women (55.0%) than in men (48.8%). Overall higher traffic‐related air pollution exposures were associated with lower BMI in men but higher BMI in women. By stratifying for those who lived in a 0‐ to 1,500‐m road buffer, the one‐interquartile‐range (685.1 m) increase of distance to a major road had a significant association with a 0.58‐kg/m2 lower BMI (95% CI: −0.92 to −0.24) in women.ConclusionsExposure to intensive traffic is associated with increased risk of obesity in Mexican American women.
Do public sector organizations ensure labor ethics? Perspectives from ethics and workplace spirituality in Bangladesh's garment sector
Authors: Uddin Mohammad Jasim , Hossain Farhad , Fujimoto Yuka , Ahmed Jashim Uddin 
Published: December 2019

SummaryThe suppression of labor rights is a matter of serious concern in developing countries. Yet little is known about the role of public agencies in protecting the rights of underprivileged employees. Hence, this study aims to examine the reasons behind the persisting labor exploitation in private enterprises despite the presence of public governance and labor codes. Data was collected through in‐depth interviews as well as archives from different external and internal agencies of privately owned garment enterprises in Bangladesh including public administrators and multinational retailers. Kantian ethics and Islamic moral principles were used as theoretical lens to evaluate the labor practices of enterprises. This study contributes to the existing literature by introducing a process model of labor exploitation that depicts multinational power and poor governance to be the main drivers for the abuse of labor ethics. Specifically, political influence and institutional corruption drive poor governance. Public power is exercised to suppress marginalized labor institutions rather than enact labor codes. We found that ethical and spiritual values are not reflected in labor practices and practical suggestions on enacting labor ethics through which the fair enforcement of public power is offered.
Structure‐thermal activity relationship in a novel polymer/MOF‐based neutron‐shielding material
Authors: Hu Chen , Zhai Yu‐Tao , Song Liang‐Liang , Mao Xiao‐Dong 
Published: December 2019

AbstractUsing epoxy resin (EP), a thermosetting polymer, as a neutron shielding material in nuclear facilities has become increasingly attractive because it is lightweight and has an excellent durability over neutron irradiation. However, it suffers from drawbacks such as reduced mechanical strength when mixed with functional fillers to improve the neutron shielding properties. In order to solve the issue, in this article, EP/gadolinium metal‐organic framework (Gd‐MOF) composites were successfully prepared, affording a new structural and functional composite with high thermal neutron shielding ability as well as good mechanical property. The shore hardness and Young's modulus of MOF/EP composites were increased remarkably compared with neat EP. Meanwhile, results indicated that the thermal performance of Gd‐MOF/EP composites was obviously increased with the addition of MOF fillers. The proposed mechanism of thermal stability improvement may provide deeper understanding of the structure‐activity relationship in thermosetting resin‐MOF composites for radiation protection application and other relevant academic research.
Examining the associations between the Big Five personality traits and body self‐conscious emotions
Authors: Alcaraz‐Ibáñez Manuel , Sicilia Alvaro , Paterna Adrian 
Published: December 2019

AbstractThis study examined the relationships between the Big Five personality traits and body‐related self‐conscious emotions in a sex‐balanced sample of Spanish undergraduates (N = 748). After controlling for sex, age, and weight discrepancy, neuroticism (positive for shame and guilt), extraversion (negative for shame and positive for pride), conscientiousness (negative for shame and positive for pride), and openness (negative for shame and guilt) emerged as significant cross‐sectional predictors of body‐related self‐conscious emotions. No moderation effect by sex was observed. The explained variance ranged from 10% (hubristic pride) to 26% (shame). Young adults possessing greater than ideally assumed body weight, high levels of neuroticism, and low levels of extraversion, conscientiousness, and openness may be especially vulnerable to body‐image disturbances.
Thermal and angular dependence of next‐generation photovoltaics under indoor lighting
Authors: Chen Chia‐Yuan , Kuo Ting‐Yang , Huang Chien‐Wu , Jian Zih‐Hong , Hsiao Po‐Tsung , Wang Chin‐Li , Lin Jian‐Ci , Chen Chien‐Yu , Chen Chao‐Hsuan , Tung Yung‐Liang , Tsai Ming‐Chi , Huang Kuan‐Min , Chen Chih‐Ming , Hsu Cheng‐Wei , Chen Yen‐Chiao , Pei Zingway , Tingare Yogesh S. , Chou Hsien‐Hsin , Yeh Chen‐Yu , Lin Ching‐Yao , Lee Yuh‐Lang , Lin Hao‐Wu , Meng Hsin‐Fei , Chou Pi‐Tai , Wu Chun‐Guey 
Published: December 2019

AbstractNext‐generation photovoltaic technologies such as dye‐sensitized solar cells, organic thin‐film photovoltaics and perovskite solar cells are promising to efficiently harvest ambient light energy. However, more and deeper understanding of their photovoltaic characteristics is essential to create new applications under room light illumination. In this study, for the first time, the difference in temperature coefficients and angular dependence of photovoltaic parameters for the large‐area devices are investigated systematically under the compact fluorescent lamp and light‐emitting diode light. These emerging photovoltaic devices, compared with the single crystalline silicon solar cells, not only have higher open‐circuit voltage (up to approximate 1 V) and better power conversion efficiency (in the range of 9.2% ~ 22.6%) but also exhibit less temperature dependent voltage and output power (< −0.6% °C−1), as well as broader angular response (over 75 degrees). The state‐of‐the‐art dye‐sensitized and organic thin‐film devices also show advantageously positive temperature coefficients of current, and the latter even has positive thermal dependence of fill factor. These features suggest the next‐generation photovoltaic devices are more favorable than the conventional crystalline silicon solar cells for real‐life indoor applications.
Singlet and triplet cyclonona‐3,5,7‐trienylidenes and their α, ά‐halogenated derivatives at DFT
Authors: Soleimani‐Amiri Somayeh 
Published: December 2019

AbstractSinglet and triplet boat‐shaped cyclonona‐3,5,7‐trienylidene (1H‐S and 1H‐T) and their corresponding α, ά‐tetrahalo derivatives (1F‐S, 1F‐T, 1Cl‐S, 1Cl‐T, 1Br‐S, 1Br‐T, 1I‐S, and 1I‐T) are compared at M06‐2X/AUG‐cc‐pVDZ, B3LYP/AUG‐cc‐pVTZ, and B3LYP/6‐311++G** levels of theory. Apart from 1H‐S which turns out as a transition state for having a negative force constant, the other structures appear as minima on their potential energy surfaces. 1H, 1Cl, and 1Br carbenes have triplet ground states, while 1F and 1I which initially take on a singlet multiplicity and eventually transform to a more stable intramolecular [1 + 2] cycloaddition product, and trans alkene, respectively. Except for 1H‐T and 1F‐T carbenes, the other triplet states emerge as allene isomer after optimization. We conclude that halogen substitution increases stability based on absolute value of singlet‐triplet energy separation (|ΔES‐T|), in the following order 1Br < 1H ≤ 1Cl < 1I < 1F at B3LYP/AUG‐cc‐pVTZ, and 1Br < 1Cl < 1H < 1I < 1F at M06‐2X/AUG‐cc‐pVDZ. Nucleophilicity of the carbenic center is decreased due to higher electronegativity of substituted halogens. The scrutinized carbenes 1Cl‐S, 1Br‐S, and 1I‐S show higher nucleophilicity and higher electrophilicity than the synthesized common NHCs (2‐6). Hence, compared with 2‐6 carbenes, these halogenated carbenes exhibit ambiphilic character owing to the presence of a σ2‐orbital and vacant 2pπ‐orbital that makes them theoretically more susceptible for attacking an electrophile or a nucleophile.
Marked response to cabazitaxel in prostate cancer xenografts expressing androgen receptor variant 7 and reversion of acquired resistance by anti‐androgens
Authors: Ylitalo Erik Bovinder , Thysell Elin , Thellenberg‐Karlsson Camilla , Lundholm Marie , Widmark Anders , Bergh Anders , Josefsson Andreas , Brattsand Maria , Wikström Pernilla 
Published: December 2019

AbstractBackgroundTaxane treatment may be a suitable therapeutic option for patients with castration‐resistant prostate cancer and high expression of constitutively active androgen receptor variants (AR‐Vs). The aim of the study was to compare the effects of cabazitaxel and androgen deprivation treatments in a prostate tumor xenograft model expressing high levels of constitutively active AR‐V7. Furthermore, mechanisms behind acquired cabazitaxel resistance were explored.MethodsMice were subcutaneously inoculated with 22Rv1 cells and treated with surgical castration (n = 7), abiraterone (n = 9), cabazitaxel (n = 6), castration plus abiraterone (n = 8), castration plus cabazitaxel (n = 11), or vehicle and/or sham operation (n = 23). Tumor growth was followed for about 2 months or to a volume of approximately 1000 mm3. Two cabazitaxel resistant cell lines; 22Rv1‐CabR1 and 22Rv1‐CabR2, were established from xenografts relapsing during cabazitaxel treatment. Differential gene expression between the cabazitaxel resistant and control 22Rv1 cells was examined by whole‐genome expression array analysis followed by immunoblotting, immunohistochemistry, and functional pathway analysis.ResultsAbiraterone treatment alone or in combination with surgical castration had no major effect on 22Rv1 tumor growth, while cabazitaxel significantly delayed and in some cases totally abolished 22Rv1 tumor growth on its own and in combination with surgical castration. The cabazitaxel resistant cell lines; 22Rv1‐CabR1 and 22Rv1‐CabR2, both showed upregulation of the ATP‐binding cassette sub‐family B member 1 (ABCB1) efflux pump. Treatment with ABCB1 inhibitor elacridar completely restored susceptibility to cabazitaxel, while treatment with AR‐antagonists bicalutamide and enzalutamide partly restored susceptibility to cabazitaxel in both cell lines. The cholesterol biosynthesis pathway was induced in the 22Rv1‐CabR2 cell line, which was confirmed by reduced sensitivity to simvastatin treatment.ConclusionsCabazitaxel efficiently inhibits prostate cancer growth despite the high expression of constitutively active AR‐V7. Acquired cabazitaxel resistance involving overexpression of efflux transporter ABCB1 can be reverted by bicalutamide or enzalutamide treatment, indicating the great clinical potential for combined treatment with cabazitaxel and anti‐androgens.
Simple and sensitive method for the analysis of 14 antituberculosis drugs using liquid chromatography/tandem mass spectrometry in human plasma
Authors: Lei Qian , Zhao Yuan , Wang Hao , Zhou Jun , Lv Xiaohui , Dang Liyun , Zhu Changsheng 
Published: December 2019

RationaleMonitoring plasma concentration and adjusting doses of antituberculosis (TB) drugs are beneficial for improving responses to drug treatment and avoiding adverse drug reactions. A simple and sensitive liquid chromatography/tandem mass spectrometry method was developed to measure the plasma concentrations of 14 anti‐TB drugs: ethambutol, isoniazid, pyrazinamide, levofloxacin, gatifloxacin, moxifloxacin, prothionamide, linezolid, rifampin, rifapentine, rifabutin, cycloserine, p‐aminosalicylic acid, and clofazimine.MethodsHuman plasma was precipitated by acetonitrile and was subsequently separated by an AQ‐C18 column with a gradient elution. Drug concentrations were determined using multiple reaction monitoring in positive ion electrospray ionization mode. According to pharmacokinetic data of patients, the peak concentration ranges and the timing of blood collection were determined.ResultsIntra‐ and interday precision was < 14.8%. Linearity, accuracy, extraction recovery, and matrix effect were acceptable for each drug. The stability of the method satisfied different storage conditions.ConclusionsThe method allowed the sensitive and reproducible determination of 14 frequently used anti‐TB drugs which has already been of benefit for some TB patients.
Robust formation control of multiagent systems on the Lie group SE(3)
Authors: Ghasemi Kobra , Ghaisari Jafar , Abdollahi Farzaneh 
Published: December 2019

SummaryThis paper addresses the robust formation control problem of multiple rigid bodies whose kinematics and dynamics evolve on the Lie group SE(3). First, it is assumed that all followers have access to the state information of a virtual leader. Then, a novel adaptive super‐twisting sliding mode control with an intrinsic proportional‐integral‐derivative sliding surface is proposed for the formation control problem of multiagent system using a virtual structure (VS) approach. The advantages of this control scheme are twofold: elimination of the chattering phenomenon without affecting the control performance and no requirement of prior knowledge about the upper bound of uncertainty/disturbance due to adaptive‐tuning law. Since the VS method is suffering from the disadvantages of centralized control, in the second step, considering a network as an undirected connected graph, we assume that only a few agents have access to the state information of the leader. Afterward, using the gradient of modified error function, a distributed adaptive velocity‐free consensus‐based formation control law is proposed where reduced‐order observers are introduced to remove the requirements of velocity measurements. Furthermore, to relax the requirement that all agents have access to the states of the leader, a distributed finite‐time super‐twisting sliding mode estimator is proposed to obtain an accurate estimation of the leader's states in a finite time for each agent. In both steps, the proposed control schemes are directly developed on the Lie group SE(3) to avoid singularity and ambiguities associated with the attitude representations. Numerical simulation results illustrated the effectiveness of the proposed control schemes.