bluuebunny/crossref_metadata_2025_split huggingface dataset:
More is less? A dynamic perspective on mentors' task‐related information sharing, indegree centrality, and newcomer socialization outcomes
Authors: Wu Wen , Wu Shaoxue , Du Qiying , Zhang Xiaoyan , Zhang Yihua , Xu Hanzhi , Yu Zhuyan 
Published: March 2023

SummaryAs information adequacy is critical for newcomers' successful adjustment to their organizations, others' information sharing is assumed to always be beneficial to newcomers. However, existing research has not explored how changes in mentors' information sharing over time impact newcomer socialization outcomes. In this study, we challenge the traditional assumption by arguing that mentors' task‐related information sharing may not always contribute to newcomer socialization from a dynamic perspective. This study is based on role theory and the literature on socialization and uses eight waves of biweekly data collected from 254 newcomer–mentor dyads during the first 4 months after newcomers' entry. We found that the initial level of mentors' task‐related information sharing had a positive effect on the initial level of newcomers' assessment of mentors' communication effectiveness. However, the change in mentors' task‐related information sharing over time was negatively related to the change in newcomers' assessment of their mentors. The initial level of and the change in newcomers' assessment of mentors' communication effectiveness were positively related to their relationship building with mentors, which further facilitated newcomer socialization. In addition, we measured mentors' indegree centrality in their teams' communication networks. We then demonstrated its moderating role in the dynamic relationship between mentors' task‐related information sharing and newcomers' assessment of mentors' communication effectiveness. Theoretical and practical implications are discussed.
Prometheeγ: A new Promethee based method for partial ranking based on valued coalitions of monocriterion net flow scores
Authors: Dejaegere Gilles , De Smet Yves 
Published: March 2023

AbstractMulticriteria decision aid consists of helping decision makers to compare (rank, choose, sort, etc.) different alternatives which are evaluated on conflicting criteria. In the last decades, numerous decision aid methods have been developed. Three main categories of decision aid methods are usually considered: the aggregating, interactive and outranking methods. While aggregation methods produce a complete ranking of the set of alternatives, outranking methods usually allow some pairs of alternatives to remain incomparable. This happens either if the two alternatives present some strong conflicting information or if there are not enough elements in the decision problem to state the preference or indifference between them. A well‐known family of outranking procedures are the Promethee methods. The aim of this work is first to provide an analysis of the incomparability relation produced by Promethee I. From our point of view, some shortcomings of this incomparability relation are presented. Then, a new method based on the comparison of weighted coalitions of mono‐criterion net flow score differences, called Promethee , is proposed. Promethee and Promethee i are then further compared.
Business strategy, sustainability, and firm value: A test of financial slack and agency theories
Authors: Mahmood Monowar , Uyar Ali , Kuzey Cemil , Karaman Abdullah S. 
Published: March 2023

AbstractDo cost leaders engage with sustainability practices or avoid them to save costs, and do differentiators implement those practices to attract the sympathy of the customers or not? How do shareholders of each strategy follower consider those practices? Answering these questions is the main purpose of this study. We find that while cost leadership is significantly and positively associated with environmental, social, and governance sustainability, differentiation is significantly and negatively associated with social and environmental sustainability but not with governance sustainability. While cost leaders' shareholders approve of social and governance sustainability, differentiators' shareholders disapprove of environmental, social, and governance sustainability.
Tautomerism of pyridinylbutane‐1,3‐diones: An NMR and DFT study
Authors: Hansen Poul Erik , Darugar Vahidreza , Vakili Mohammad , Kamounah Fadhil S. 
Published: March 2023

AbstractThe three possible 1‐(n‐pyridinyl)butane‐1,3‐diones (nPM) have been synthesized. Structures, tautomerism, and conformations are investigated by means of DFT calculations. 1H and 13C NMR spectra are assigned, and deuterium isotope effects on 13C chemical shifts have been measured. Analysis of the isotope effects leads to the equilibrium constants of the keto–enol tautomers. Some interesting differences are seen between the three compounds and the phenyl analogs. The isotope effects can also rank the hydrogen bonds of the compounds, with the one with nitrogen in the three positions of the pyridine ring as the weakest. Structures, conformers, energies, and NMR nuclear shieldings are calculated using DFT calculations at the B3LYP/6‐311++G(d,p) level.
Comparison of uniform‐density, variable‐density, and dual‐density spiral samplings for multi‐shot DWI
Authors: Li Guangqi , Ma Xiaodong , Li Sisi , Ye Xinyu , Börnert Peter , Zhou Xiaohong Joe , Guo Hua 
Published: March 2023

PurposeTo compare the performances of uniform‐density spiral (UDS), variable‐density spiral (VDS), and dual‐density spiral (DDS) samplings in multi‐shot diffusion imaging, and determine a sampling strategy that balances reliability of shot navigator and overall DWI image quality.Theory and MethodsUDS, VDS, and DDS trajectories were implemented to achieve four‐shot diffusion‐weighted spiral imaging. First, the static B0 off‐resonance effects in UDS, VDS, and DDS acquisitions were analyzed based on a signal model. Then, in vivo experiments were performed to verify the theoretical analyses, and fractional anisotropy (FA) fitting residuals were used to quantitatively assess the quality of spiral diffusion data for tensor estimation. Finally, the SNR performances and g‐factor behavior of the three spiral samplings were evaluated using a Monte Carlo‐based pseudo multiple replica method.ResultsAmong the three spiral trajectories with the same readout duration, UDS sampling exhibited the least off‐resonance artifacts. This was most evident when the static B0 off‐resonance effect was severe. The UDS diffusion images had higher anatomical fidelity and lower FA fitting residuals than the other two counterparts. Furthermore, the four‐shot UDS acquisition achieved the best SNR performance in diffusion imaging with 12.11% and 40.85% improvements over the VDS and DDS acquisitions with the same readout duration, respectively.ConclusionUDS sampling is an efficient spiral acquisition scheme for high‐resolution diffusion imaging with reliable navigator information. It provides superior off‐resonance performance and SNR efficiency over the VDS and DDS samplings for the tested scenarios.
Self‐assessed competence of final‐year nursing students
Authors: Zeleníková Renáta , Gurková Elena , Pěrůžková Radana , Štureková Lenka , Jarošová Darja , Kajander‐Unkuri Satu 
Published: March 2023

AbstractAimTo examine the overall level of self‐assessed competence of final‐year nursing ‘bachelors’ degree students in the Czech Republic. In addition, the study aimed at the factors associated with the students' level of competence.DesignA cross‐sectional observational study.MethodsData were collected with the Czech version of the Nurse Competence Scale from 274 final‐year nursing students of the bachelor's nursing program. Data were analysed using descriptive statistics and multiple regression analyses.ResultsMajority of the students (80.3%) assessed their level of competence as good or very good. The highest level of competence was assessed in the category of ‘managing situations’ (VAS mean 67.8) and ‘work role’ (VAS mean 67.2). Previous work experience in healthcare and successful supervisory experience had a positive association with self‐assessed competence. Students who completed clinical placement during the COVID‐19 pandemic assessed their level of competence as lower than students before the pandemic. No Patient or Public Contribution.
Convergence of a discretization of the Maxwell–Klein–Gordon equation based on finite element methods and lattice gauge theory
Authors: Christiansen Snorre H. , Halvorsen Tore G. , Scheid Claire 
Published: March 2023

AbstractThe Maxwell–Klein–Gordon equations are a set of coupled nonlinear time‐dependent wave equations, used to model the interaction of an electromagnetic field with a particle. The solutions, expressed with a magnetic vector potential, are invariant under gauge transformations. This characteristic implies a constraint on the solution fields that might be broken at the discrete level. In this article, we propose and study a constraint preserving numerical scheme for this set of equations in dimension 2. At the semidiscrete level, we combine conforming Finite Element discretizations with the so‐called Lattice Gauge Theory to design a compatible gauge invariant discretization, leading to preservation of a discrete constraint. Relying on energy techniques and compactness arguments, we establish the convergence of this semidiscrete scheme, without a priori knowledge of the solution. Finally, at the fully discrete level, we propose a compatible explicit time‐integration strategy of leapfrog type. We implement the resulting fully discrete scheme and provide assessment on academic scenarios.
Deaf Weight Wise: A novel randomized clinical trial with Deaf sign language users
Authors: Barnett Steven , Matthews Kelly , DeWindt Lori , Sutter Erika , Samuel‐Hodge Carmen , Yang Hongmei , Pearson Thomas A. ,   the Deaf Weight Wise Study Group
Published: March 2023

AbstractObjectiveThe goal of this study was to address the absence of evidence‐based weight‐control programs developed for use with Deaf people.MethodsCommunity‐based participatory research informed the design of the Deaf Weight Wise (DWW) trial and intervention. DWW focuses primarily on healthy lifestyle and weight through change in diet and exercise. The study enrolled 104 Deaf adults aged 40 to 70 years with BMI of 25 to 45 from community settings in Rochester, New York, and randomized participants to immediate intervention (n = 48) or 1‐year delayed intervention (n = 56). The delayed intervention serves as a no‐intervention comparison until the trial midpoint. The study collected data five times (every 6 months) from baseline to 24 months. All DWW intervention leaders and participants are Deaf people who use American Sign Language (ASL).ResultsAt 6 months, the difference in mean weight change for the immediate‐intervention arm versus the delayed‐intervention arm (no intervention yet) was −3.4 kg (multiplicity‐adjusted p = 0.0424; 95% CI: −6.1 to −0.8 kg). Most (61.6%) in the immediate arm lost ≥5% of baseline weight versus 18.1% in the no‐intervention‐yet arm (p < 0.001). Participant engagement indicators include mean attendance of 11/16 sessions (69%), and 92% completed 24‐month data collection.ConclusionDWW, a community‐engaged, culturally appropriate, and language‐accessible behavioral weight loss intervention, was successful with Deaf ASL users.
Constructing “sesame‐biscuit” structured hybrids with SiC and Ag particles for enhancing thermal conductivity and dielectric constant of elastomer composites
Authors: Wang Hailong , Yang Dan 
Published: March 2023

AbstractWith the development of multifunctional and miniaturized integrated circuits, polymeric materials with large dielectric constant and high thermal conductivity have major significance in modern electronic industry. In this work, “sesame‐biscuit” structured thermally conductive hybrids were prepared by polydopamine (PDA) modification and in‐situ electroless silver (Ag) plating on the surface of silicon carbide (SiC), referred as SiC‐P‐Ag. Then, the SiC‐P‐Ag was incorporated into epoxidized natural rubber (ENR) matrix to yield polymeric composites (ENR/SiC‐P‐Ag) with excellent thermal and dielectric properties. It was found that PDA improved the interfacial compatibility and reduced the interface thermal resistance between SiC and ENR matrix. In addition, the formation of heat conduction channels and conductive Ag nanoparticles caused an increase in thermal conductivity of the 50 vol% ENR/SiC‐P‐Ag composite to 0.5655 W/(mK), which was 540% that of the pure ENR (0.1048 W/(mK)). Meanwhile, the 50 vol% ENR/SiC‐P‐Ag composite showed a low AC conductivity of 2.98 × 10−11 S/cm and a high dielectric constant of 35 at 10 Hz. It is noteworthy that this simple and efficient route for preparing ENR/SiC‐P‐Ag composites can also be applied in other fillers for simultaneously enhancing dielectric constant and thermal conductivity of polymeric composites.
Effects of silicone resins on copolymerization of acrylated epoxidized soybean oil
Authors: Zhao Feng , Li Meng , Zhao Xin , Li Zheng , Wang Zhi Yu , Xiang Jia Lin 
Published: March 2023

AbstractIn this work, effects of the silicone resins on copolymerization of the acrylated epoxidized soybean oil were investigated. Rheological characteristics, curing behaviors, and thermal properties of acrylate epoxy soybean oil prepolymer (AP), silicone prepolymer (SP), and their hybrids (AP/SP) were studied in detail. Spots in a snowflake pattern were observed on the fracture section surface of cured AP/SP hybrid resins by SEM. According to the change of polymer groups revealed by Fourier transform infrared, a possible reaction between AP and SP was proposed. The curing mechanism of AP/SP hybrids was researched, which was suggested to be an autocatalytic curing process. Furthermore, the degree of cure, the activation energy (Eα) and the reaction frequency factor (A) of the curing reaction were estimated. It was found that the cure kinetic of AP/SP hybrid resins could be well‐described by a Sesthk‐Bergglen model with the numerical optimization based on the Kissinger method and the Malek approach. The experimental results show that the mass retention rates of AP/SP hybrid resins were significantly increased after curing, indicating that the thermal stability of AP was enhanced with the addition of SP.
Study on explosive welding of Cu/steel composite pipe under local water environment
Authors: Hu Yu , Miao Guang‐hong , Yang Li‐ao , Yang Liu , Sun Bao‐liang , Li Xiao‐cheng , Qi Jun‐xiang , Ma Qiu‐yue , Sun Zhi‐hao , Liu Zi‐wei 
Published: March 2023

AbstractIn order to improve the energy utilization rate and the bond quality of explosive welding, the local water environment method is used in present study. In this paper, several groups of high‐quality Cu/Steel explosive composite pipes are prepared under local water environment. Optical microscope and mechanical property tests are conducted to analyze samples microstructure and mechanical properties. The results show that the waveform dimension of Cu/Steel bonding interface has a positive correlation with explosive layer thickness, and the miniature wavy bonding interface with the highest bonding quality is obtained by using the local water environment method. Compared with the traditional charge method, the consumption of explosives for the local water environment charge method is decreased about 60 % in the same case of experimental conditions. The local water enviroment method solves the problem of ablation damage at the contact surface between metal and explosives, and effectively reduces the diameter expansion phenomenon and end damage caused by boundary effect in the welding process. Through mechanical property tests, it was found that the yield strengths and compressive strengths of Cu/Steel specimens which created by the local water environment method are positively correlated with the explosive thickness.
Effects of curcumin/turmeric supplementation on obesity indices and adipokines in adults: A grade‐assessed systematic review and dose–response meta‐analysis of randomized controlled trials
Authors: Dehzad Mohammad Jafar , Ghalandari Hamid , Nouri Mehran , Askarpour Moein 
Published: March 2023

AbstractIn the present study, we explored the effect of curcumin/turmeric supplementation on anthropometric indices of obesity, leptin, and adiponectin. We searched PubMed, Scopus, Web of Science, Cochrane Library, and Google Scholar up to August 2022. Randomized clinical trials (RCTs) investigating the impact of curcumin/turmeric on obesity indices and adipokines were included. We applied the Cochrane quality assessment tool to evaluate the risk of bias. The registration number is CRD42022350946. Sixty eligible RCTs, with a total sample size of 3691 individuals were included for quantitative analysis. We found that supplementation with curcumin/turmeric significantly reduced body weight (WMD: −0.82 kg, 95% CI: −1.30, −0.35; p = 0.001), body mass index (WMD: −0.30 kg/m2, 95% CI: −0.53, −0.06, p = 0.013), waist circumference (WMD: −1.31 cm, 95% CI: −1.94, −0.69, p < 0.001), body fat percentage (WMD: −0.88%, 95% CI: −1.51, −0.25, p = 0.007), leptin (WMD = −4.46 ng/mL; 95% CI: −6.70, −2.21, p < 0.001), and increased adiponectin (WMD = 2.48 μg/mL; 95% CI: 1.34, 3.62, p < 0.001). Overall, our study shows that supplementation with curcumin/turmeric significantly improves anthropometric indices of obesity and adiposity‐related adipokines (leptin and adiponectin). However, due to high between‐studies heterogeneity, we should interpret the results with caution.
Confidence intervals of the process capability index Cpc$C_{pc}$ revisited via modified bootstrap technique and ROC curves
Authors: Ouyang Linhan , Dey Sanku , Byun Jai‐Hyun , Park Chanseok 
Published: March 2023

AbstractWe consider the process capability index (PCI), a widely used quality‐related statistic used to assess the quality of products and performance of monitored processes in various industries. It is widely known that the conventional PCIs perform well when the quality process being monitored has a normal distribution. Unfortunately, using the indices to evaluate a non‐normally distributed process often leads to inaccurate results. In this article, we consider a new PCI, , that can be used in both normal and non‐normal scenarios. The objective of this article is threefold: (i) We provide a corrected form of the confidence interval for . (ii) We compare the performance of three nonparametric bootstrap confidence intervals (BCIs) for . Specifically, the standard bootstrap, percentile bootstrap, and bias‐corrected percentile bootstrap. Under various distributional assumptions such as the normal, chi‐square, Student t, Laplace, and two‐parameter exponential distributions, the estimated coverage probabilities and average width of the confidence intervals and BCIs for are compared. (iii) The power of the respective bootstrap approaches is evaluated by using the equivalence relation between confidence interval construction and two‐sided hypothesis testing. We also provide the receiver operating characteristic curves to evaluate their performance. Finally, as an illustrative example, an actual data set related to groove dimensions (in inches) measured from a manufacturing process of ignition keys is re‐analyzed to illustrate the utility of the proposed methods.
Histological study of the role of CD34+ stem cells and mast cells in cyclophosphamide-induced thymic injury in rats and the possible attenuating role of melatonin
Authors: Shrief Amira I. , Hamed Walaa H. E. , Mazroa Shireen A. , Moustafa Amal M. 
Published: March 2023

AbstractCyclophosphamide (CP) is an anticancer drug that adversely affects immunity and thymus structure. Melatonin is a hormone secreted by the pineal gland. It boosts immunity and has antioxidant properties. Therefore, the present study was conducted to investigate the possible protective effect of melatonin on CP-induced changes in the rat thymus. Forty male albino rats were used and divided equally into four main groups. Group I was the control group. Group II (melatonin group) received melatonin at a dose of 10 mg/kg body weight/day by intraperitoneal injection throughout the experimental period. Group III (CP group) received 200 mg/kg body weight CP by a single intraperitoneal injection. Group IV (CP + melatonin group) received melatonin intraperitoneally at a dose of 10 mg/kg body weight/day starting 5 days prior to CP injection until the end of the experiment. All rats were euthanized 7 days after CP injection. Administration of CP in group III resulted in depletion of the cortical thymoblasts. In addition, CD34-immunopositive stained stem cells decreased and mast cell infiltration increased. Electron microscopy showed degeneration of thymoblasts and vacuolization of epithelial reticular cells. Administration of melatonin with CP in group IV showed considerable protection of thymic histology. In conclusion, melatonin may protect against CP-induced thymic injury.
Mapping the primate thalamus: systematic approach to analyze the distribution of subcortical neuromodulatory afferents
Authors: Pérez-Santos Isabel , García-Cabezas Miguel Ángel , Cavada Carmen 
Published: March 2023

AbstractNeuromodulatory afferents to thalamic nuclei are key for information transmission and thus play critical roles in sensory, motor, and limbic processes. Over the course of the last decades, diverse attempts have been made to map and describe subcortical neuromodulatory afferents to the primate thalamus, including axons using acetylcholine, serotonin, dopamine, noradrenaline, adrenaline, and histamine. Our group has been actively involved in this endeavor. The published descriptions on neuromodulatory afferents to the primate thalamus have been made in different laboratories and are not fully comparable due to methodological divergences (for example, fixation procedures, planes of cutting, techniques used to detect the afferents, different criteria for identification of thalamic nuclei…). Such variation affects the results obtained. Therefore, systematic methodological and analytical approaches are much needed. The present article proposes reproducible methodological and terminological frameworks for primate thalamic mapping. We suggest the use of standard stereotaxic planes to produce and present maps of the primate thalamus, as well as the use of the Anglo-American school terminology (vs. the German school terminology) for identification of thalamic nuclei. Finally, a public repository of the data collected under agreed-on frameworks would be a useful tool for looking up and comparing data on the structure and connections of primate thalamic nuclei. Important and agreed-on efforts are required to create, manage, and fund a unified and homogeneous resource of data on the primate thalamus. Likewise, a firm commitment of the institutions to preserve experimental brain material is much needed because neuroscience work with non-human primates is becoming increasingly rare, making earlier material still more valuable.