Miracle-dz/UniFAR-FTUs huggingface dataset:
Competition and/or coexistence of antiferromagnetism and superconductivity in CeRhIn5 and CeCoIn5

The Ce compounds CeCoIn5 and CeRhIn5 are ideal model systems to study the competition of antiferromagnetism (AF) and superconductivity (SC). Here we discuss the pressure–temperature and magnetic field phase diagrams of both compounds. In CeRhIn5 the interesting observation is that in zero magnetic field a coexistence AF + SC phase exist inside the AF phase below the critical pressure $p_{\rm c}^{\rm *} \approx 2$ GPa. Above $p_{\rm c}^{\rm *} $ AF is suppressed in zero field but can be re‐induced by applying a magnetic field. The collapse of AF under pressure coincides with the abrupt change of the Fermi surface. In CeCoIn5 a new phase appears at low temperatures and high magnetic field (LTHF) which vanishes at the upper critical field Hc2. In both compounds the paramagnetic pair breaking effect dominates at low temperature. We discuss the evolution of the upper critical field under high pressure of both compounds and propose a simple picture of the glue of reentrant magnetism to the upper critical field in order to explain the interplay of antiferromagnetic order and SC.
IDENTIFYING FACTORS THAT CONTRIBUTE TO THE SATISFACTION OF STUDENTS IN E-LEARNING

There has been an increasing interest in the application of e-learning through the enhancement of internet and computer technologies. Satisfaction has appeared as a key factor in order to develop efficient course content in line with students’ demands and expectations. Thus, a lot of research has been conducted on the concept of satisfaction in electronic environments. Satisfaction has been seen to be the most significant variable on loyalty and usage intention in marketing and information science terms, which can also be highly related to academic success. In this regard, this study set out to investigate the effects of several variables on the learning processes of 930 e-learning students in the Sakarya University distance learning program. The findings of the research indicated that factors perceived playfulness, perceived ease of use and multimedia content effectiveness had a significant effect on perceived usefulness. Furthermore, it was concluded that satisfaction was affected by perceived usefulness, perceived playfulness and multimedia content effectiveness.
Biofilm production by multiresistant Corynebacterium striatum associated with nosocomial outbreak

Corynebacterium striatum is a potentially pathogenic microorganism that causes nosocomial outbreaks. However, little is known about its virulence factors that may contribute to healthcare-associated infections (HAIs). We investigated the biofilm production on abiotic surfaces of multidrug-resistant (MDR) and multidrug-susceptible (MDS) strains of C. striatum of pulsed-field gel electrophoresis types I-MDR, II-MDR, III-MDS and IV-MDS isolated during a nosocomial outbreak in Rio de Janeiro, Brazil. The results showed that C. striatum was able to adhere to hydrophilic and hydrophobic abiotic surfaces. The C. striatum 1987/I-MDR strain, predominantly isolated from patients undergoing endotracheal intubation procedures, showed the greatest ability to adhere to all surfaces. C. striatum bound fibrinogen to its surface, which contributed to biofilm formation. Scanning electron microscopy showed the production of mature biofilms on polyurethane catheters by all pulsotypes. In conclusion, biofilm production may contribute to the establishment of HAIs caused by C. striatum.
Toward a Work Motivation Conceptualization of Grit in Organizations

Despite its widespread media acclaim and recognition as a strategic imperative, the role of grit in organizational research remains unclear. This ambiguity resulted from inconsistent empirical findings, thus triggering a pessimistic outlook for the construct across disciplines. To address these issues, we suggest that such confusion and lack of construct and predictive validity stem from not only methodological issues but also a lack of theoretical sophistication. In this article, we address methodological issues, focusing mainly on construct and criterion-related validity, by showing how traditional definitional components of grit are absent in existing measures. Next, we address theoretical issues impeding progress by developing a new work motivation conceptualization of the construct. To do so, we focus primarily on noncognitive ability, purpose-driven long-term goal setting, and task strategy (i.e., short-term goal) adaptation. Finally, we develop an organizing framework examining how, and under what conditions, work-related goal setting manifests, highlighting grit’s distinction from other historically related constructs. Coupled with the assumption that individuals hold higher order organizational goals toward which they are passionate, our organizing framework includes feedback mechanisms accounting for grit’s developmental properties over time. Finally, we acknowledge significant areas for future research and potential practical implications.
Peer-to-peer workload characterization: techniques and open issues

The popularity of peer-to-peer file sharing networks has attracted multiple interests even in the research community. In this paper, we focus on workload characterization of file-sharing systems that should be at the basis of performance evaluation and investigations for possible improvements. The contribution of this paper is twofold: first, we provide a classification of related studies on file-sharing workload by distinguishing the main considered information and the mechanisms and tools that have been used for data collection. We also point out open issues in file-sharing workload characterization and suggest novel approaches to workload studies.
Web usability inspection technique based on design perspectives

This work describes a usability inspection technique (WDP - Web Design Perspectives-Based Usability Evaluation) as well as the experimentation methodology followed to support its development and improvement. At this point in time, three experimental studies (one secondary and two primaries) were carried out and led to the WDP’s current version. Results indicate the feasibility of the WDP technique and its possibility to be more effective than and as efficient as Nielsen’s Heuristics Evaluation.
Learning computer science in the "comfort zone of proximal development"

As computer science faculty, we are always looking for better ways to recruit and retain new majors. One way to achieve this goal is to incorporate material into the introductory courses that lies within the intersection of the student's "zone of proximal development" (which contains concepts that the student is capable of understanding) and "comfort zone" (which contains concepts that motivate the student and are presented in a way in which the student is familiar and comfortable). We refer to this region as the "comfort zone of proximal development. " In this paper, we present a "comfort zone of proximal development" that we have created for computer science students which consists of a collaborative learning environment where programming concepts are introduced with gaming applications.
Activities of daily living as an additional predictor of complications and outcomes in elderly patients with acute myocardial infarction

Background Age is an important determinant of outcome in acute myocardial infarction (AMI). However, in clinical settings, there is an occasional mismatch between chronological age and physical age. We evaluated whether activities of daily living (ADL), which reflect physical age, also predict complications and prognosis in elderly patients with AMI. Design Single-center, observational, and retrospective cohort study. Methods Preserved ADL and low ADL were defined according to the scale for independence degree of daily living for the disabled elderly by the Japanese Ministry of Health, Labour, and Welfare. We examined 82 consecutive patients aged ≥75 years with AMI who underwent primary percutaneous coronary intervention. Patients were divided into preserved ADL (n=52; mean age, 81.8±4.8 years; male, 59.6%) and low ADL (n=30; mean age, 85.8±4.7 years; male, 40.0%) groups according to prehospital ADL. Results The prevalence of Killip class II–IV and in-hospital mortality rate were significantly higher with low ADL compared to that with preserved ADL (23.1% vs 60.0%, P=0.0019; 5.8% vs 30.0%, P=0.0068, respectively). Multivariate analysis showed that ADL was an independent predictor of Killip class II–IV and 1-year mortality after adjusting for age, sex, and other possible confounders (odds ratio 5.11, 95% confidence interval [CI] 1.52–17.2, P=0.0083; hazard ratio 4.32, 95% CI 1.31–14.3, P=0.017, respectively). Conclusion Prehospital ADL is a significant predictor of heart failure complications and prognosis in elderly patients with AMI undergoing primary percutaneous coronary intervention, irrespective of age and sex.
Glycyrrhiza uralensis Fisch ) Activate PXR and Increase Warfarin Clearance in Rats

The traditional Chinese medicines (TCMs) are essential components of alternative medicines. Many TCMs are known to alter the expression of hepatic drug metabolizing enzymes and transporters. The molecular mechanism by which TCMs and/or their constituents regulate enzyme and transporter expression, however, has remained largely unknown. In this report, we show that two TCMs, Wu Wei Zi (Schisandra chinensis Baill) and Gan Cao (Glycyrrhiza uralensis Fisch), and their selected constituents activate the xenobiotic orphan nuclear receptor pregnane X receptor (PXR). Treatment with TCM extracts and the Schisandrol and Schisandrin constituents of Wu Wei Zi induced the expression of drug metabolizing enzymes and transporters in reporter gene assays and in primary hepatocyte cultures. The affected enzymes and transporters include CYP3A and 2C isozymes and the multidrug resistance associated protein 2 (MRP2). In transient transfection and reporter gene assays, the Schisandrin constituents of Wu Wei Zi had an estimated EC50 of 2 μM and 1.25 μM on hPXR and mPXR, respectively. Interestingly, mutations that were intended to alter the pore of the ligand-binding cavity of PXR had species-specific effects on the activities of the individual Schisandrols and Schisandrins. In rats, the administration of Wu Wei Zi and Gan Cao increased the metabolism of the co-administered warfarin, reinforcing concerns involving the safe use of herbal medicines and other nutraceuticals to avoid PXR-mediated drug-drug interactions. Meanwhile, the activation of PXR and induction of detoxifying enzymes provide a molecular mechanism for the hepatoprotective effects of certain TCMs.
On improved deformable template matching for polygonal objects

In this paper, an improvement of deformable template matching algorithm for polygonal objects in grayscale images using two-dimensional deformable templates along orthogonal curves is presented. In the process of pre-computing extensions of the deformable template along orthogonal curves, the novel matching approach incorporates adapting knowledge-specific template discretization techniques appropriate for different polygonal objects and minimizing the improved internal and external energy terms containing inter-shape information of polygonal objects. In our application, this energy optimization problem of the deformable template is efficiently solved by a genetic algorithm (GA). Our algorithm has been successfully applied on synthetic images and real images. The experiment results show that the new approach provides more robust and accurate matching method.
A Systems Biology Strategy on Differential Gene Expression Data Discloses Some Biological Features of Atrial Fibrillation

Atrial fibrillation (AF), the most common cardiac arrhythmia, is associated with extensive structural, contractile, and electrophysiological remodeling. In this manuscript we re-analyzed gene expression data from a microarray experiment on AF patients and control tissues, using a new paradigm based on a posteriori unsupervised strategy in which the discrimination of patients comes out from purely syntactical premises. This paradigm, more adherent to biological reality where genes work in highly connected networks, allowed us to get both a very precise patients/control discrimination and the discovery of cell adhesion/tissue modeling and inflammation processes as the main dimensions of AF.
Systematic review of interferon-gamma release assays in tuberculosis: focus on likelihood ratios

Background Clinical roles of QuantiFERON-TB Gold (QFT-G)/Gold in-Tube (QFT-G-IT) and T-SPOT.TB in tuberculosis require clarification. Methods MEDLINE and EMBASE were searched for relevant English papers. Summary estimates of likelihood ratios (LR) of QFT-G/QFT-G-IT and T-SPOT.TB for latent tuberculosis infection (LTBI) and tuberculosis disease in adults were obtained by bivariate and univariate random effects meta-analyses after assessing heterogeneity. Probable ranges of prevalence for LTBI and tuberculosis disease were estimated. Critical values of positive LR (PLR) and negative LR (NLR) corresponding to a 90% certainty threshold were calculated over probable prevalence ranges. It was considered reliable to rule in when the best estimated PLR exceeds the corresponding critical value and to rule out when the best estimated NLR is less than the corresponding critical value. Results 35 studies involving predominantly immunocompetent adults were identified. Based on bivariate meta-analysis, PLR (95% CI) for LTBI were 7.9 (3.6 to 17.3) for T-SPOT.TB and 48.1 (19.7 to 117.6) and 10.8 (5.3 to 21.8) for QFT-G/QFT-G-IT based on Japanese and other studies, respectively. Corresponding NLR (95% CI) were 0.10 (0.06 to 0.18), 0.11 (0.07 to 0.18) and 0.23 (0.16 to 0.32). PLR (95% CI) for tuberculosis disease were 3.6 (2.3 to 5.6) for QFT-G, 2.1 (1.1 to 4.0) for QFT-G-IT and 4.7 (2.4 to 9.1) and 2.3 (1.3 to 4.0) for T-SPOT.TB based on studies with mean or median age >47. 1 years and ≤47.1 years, respectively. Corresponding NLR (95% CI) were 0.18 (0.12 to 0.27), 0.38 (0.22 to 0.68), 0.11 (0.06 to 0.20) and 0.20 (0.10 to 0.40). Estimated prevalence ranges were 10–55% for LTBI and 40–60% for tuberculosis disease. Conclusions At a 90% certainty threshold, LTBI is best diagnosed by QFT-G/QFT-G-IT and excluded by T-SPOT.TB or QFT-G/QFT-G-IT; none can diagnose tuberculosis disease, whereas. T-SPOT.TB can exclude tuberculosis disease among middle-aged and older patients.
FACTORIZED DEEP NEURAL NETWORKS FOR ADAPTIVE SPEECH RECOGNITION

Recently, we have shown that context-dependent deep neural network hidden Markov models (CD-DNN-HMMs) can achieve very promising recognition results on large vocabulary speech recognition tasks, as evidenced by over one third fewer word errors than the discriminatively trained conventional HMM-based systems on the 300hr Switchboard benchmark task. In this paper, we propose and describe two types of factorized adaptive DNNs, improving the earlier versions of CD-DNN-HMMs. In the first model, the hidden speaker and environment factors and tied triphone states are jointly approximated; while in the second model, the factors are firstly estimated and then fed into the main DNN to predict tied triphone states. We evaluated these models on the small 30hr Switchboard task. The preliminary results indicate that more training data are needed to show the full potential of these models. However, these models provide new ways of modeling speaker and environment factors and offer insight onto how environment invariant DNN models may be constructed and subsequently trained. Index Terms — automatic speech recognition, deep neural networks, factorized DNN, CD-DNN-HMM
The Temporal Decline of Social Support among Colorectal Cancer Survivors: First Year Prospective Study

Dear Editor-in-ChiefColorectal cancer (CRC) is one of the most prevalent malignancies worldwide. The overall mortality for CRC has declined in recent years (1). However, CRC survivors often experience significant physical, emotional, and social changes following the diagnosis, treatment and treatment-related side effects (2). Social support is widely acknowledged as beneficial to cancer survivors (3). Previous studies investigating the social support level in cancer survivors were generally consistent to the conclusions that the majority of cancer survivors received high level of social support (4, 5). However, findings from most of these studies were based on cross-sectional study design and social support was measured at one or two time points only (usually at the time of initial detection and treatment). Until date, the changes in social support over time among CRC survivors after surgery were not well described. The lack of information hampered the efforts to suggest effective intervention strategies for this population. The present study was conducted to describe the level of social support and its predictors among Chinese CRC survivors during the first year post operation.From Jan 2012 and July 2014, patients who were newly diagnosed with colorectal cancer and admitted for corrective surgery were consecutively recruited. Individual's satisfaction with available social support was assessed at the time prior to surgical operation (T1) through self-administered multidimensional scale of perceived social support (MSPSS). Additional four waves of assessments on social support were performed at 4-6 wk (T2), 3 months (T3), 6 months (T4) and 12 months (T5) during one-year follow-up period after surgery. Of 227 CRC survivors, the mean score of MSPSS were 68.5±10.3, 68.4±10.9, 65.1±9.6, 49.2±6.8 and 48.6±7.0 through T1 to T5, respectively. It remained relatively stable and high in the first three months post-surgery, but decreased significantly at 6 months and remained low afterwards, displaying an overall decreasing trend over time (P
Who Exercises and When? The Effects of Intra- and Inter-Individual Variation on the Likelihood and Duration of Exercise

The current study examined the ability of interand intra-individual characteristics to predict the likelihood and duration of exercise as well as mood. One hundred forty-nine undergraduates (mean age = 19.11; 53% women; 79.19% White) participated in a six-day study. Online surveys measured participants’ self-reported exercise duration, emotion-regulation ability, hostility, depressive symptoms, sleep quality, anger, and mood. Higher depressive symptoms predicted higher odds of exercise. Higher hostility predicted lower odds of exercise but, on days when participants did exercise, higher duration of exercise. Higher anger predicted lower odds of exercise. Better sleep quality predicted higher positive and lower negative mood but only for older participants. Higher depressive symptoms predicted higher negative and lower positive mood. Results suggest an indirect relationship between hostility and heart disease may exist, via the relationship of hostility to exercise. Further research should investigate causality and the effectiveness of exercise interventions that foster exercise-conducive environments.
Division-of-labor between server and P2P for streaming VoD

We consider a P2P-assisted content storage and delivery system to support a streaming Video-on-Demand (VoD) service. In this system, the peers are part of the service provider (e.g. set-top boxes) with limited storage space. Servers with ample storage and bandwidth are deployed to guarantee the availability and quality, but it is desirable to minimize the server utilization to reduce costs. Based on experience of implementing a deployed P2P VoD system, it was suggested in [1] that a movie's availability should be proportional to the movie's popularity. Based on further refinement, it is observed [2] that performance can be further improved by more (than proportional) availability for cold movies in P2P system. In this paper, we show that as the number of movies becomes large and there is some skewness in movie popularity, then one cannot expect the P2P part of the system to reduce server load as well as provide availability to all movies at the same time. It is a trade-off between coverage of movies and streaming throughput provided by the P2P system. If the goal is to minimize server load, under some reasonable conditions, we show that it is best to store and replicate only the hottest K* movies in the P2P part of the system. We also study the relationship between the skewness of the movie popularity distribution, P2P resources and the value of K*. Finally, we use simulation to validate our results.
Direct and indirect effects of organizational justice on work ability.

BACKGROUND Organizational justice (OJ), involving transparent workplace procedures and treating staff members with respect, has been of growing concern in recent epidemiological research as a determinant of health-related outcomes. AIMS To examine the factorial validity of the German version of Moorman's Organizational Justice Questionnaire (OJQ), to investigate the direct cross-sectional effect of OJ on self-rated work ability and to analyse if there is an additional indirect effect of OJ on work ability mediated by effort-reward imbalance. METHODS An analysis of cross-sectional data from the Second German Sociomedical Panel of Employees, involving white-collar workers employed at least half time. We performed confirmatory factor analyses to test the factorial validity of the OJQ and analysed the direct and indirect associations of OJ and self-rated work ability by path model analysis. RESULTS Of the 1217 participants (47% female; mean age: 51) 36% had poor work ability. Factor analyses confirmed the two-factor structure of the German OJQ. Work ability was explained directly by OJ (β = 0.30) and effort-reward imbalance (β = -0.27). Additionally, we identified an indirect effect of OJ that was mediated by effort-reward imbalance (β = 0.14). The total effect of OJ on work ability was remarkably strong (β = 0.44). Associations remained unchanged after adjustment for socio-demographic parameters. CONCLUSIONS This study showed the importance of considering additional indirect pathways when examining the impact of OJ on the work ability of employees.