Miracle-dz/UniFAR-FTUs huggingface dataset:
The Effect of Servant Leadership on Work Resilience: Evidence from the Hospitality Industry during the COVID-19 Period

The COVID-19 pandemic is a tremendous crisis for public health, which also has a profound impact on business and social activities because many countries restrict travel and social gatherings to avoid the spread of COVID-19. Workers suffer from mental health problems including depression and anxiety due to the uncertain work environment. Hence, psychological resilience, a positive psychological response to these challenges, is essential to the success of employees and companies. Drawing on the conservation of resources theory (COR), this paper investigates how the leadership style (i.e., servant leadership) enhances the work resilience of hospitality employees through two time-lagged empirical studies. Specifically, study 1 demonstrates a positive relationship between servant leadership and employees’ work resilience. Study 2 replicates study 1’s result and further demonstrates that emotional exhaustion mediates the relationship between servant leadership and employees’ work resilience. Furthermore, study 2 finds a significant moderating effect of job complexity. The findings of this paper provide empirical evidence for practitioners to manage employees’ resilience and psychological resources.
Template match using local feature with view invariance

Matching the template image in the target image is the fundamental task in the field of computer vision. Aiming at the deficiency in the traditional image matching methods and inaccurate matching in scene image with rotation, illumination and view changing, a novel matching algorithm using local features are proposed in this paper. The local histograms of the edge pixels (LHoE) are extracted as the invariable feature to resist view and brightness changing. The merits of the LHoE is that the edge points have been little affected with view changing, and the LHoE can resist not only illumination variance but also the polution of noise. For the process of matching are excuded only on the edge points, the computation burden are highly reduced. Additionally, our approach is conceptually simple, easy to implement and do not need the training phase. The view changing can be considered as the combination of rotation, illumination and shear transformation. Experimental results on simulated and real data demonstrated that the proposed approach is superior to NCC(Normalized cross-correlation) and Histogram-based methods with view changing.
Explicit solutions for seepage infiltrating into a porous earth dam due to precipitation

Steady two-dimensional gravity-driven seepage in homogeneous porous lumps is studied with the help of conformal mappings and boundary value problem technique. The Terzaghi flow pattern for a trapezoidal dam exposed to a heavy rainstorm is analysed. For a semi-circular massif, the influence of impervious bed inclination is studied. Recharge-discharge distributions, hinge points, gradients along the lump contour as well as the total flow rate exhibiting water-bearing capacity of the unit are found in explicit form. Generalizations for non-isobaric boundary conditions are discussed.
ΔFosB Requires Galanin, but not Leptin, to Increase Bone Mass via the Hypothalamus, but both are needed to increase Energy expenditure

Energy metabolism and bone homeostasis share several regulatory pathways. The AP1 transcription factor ΔFosB and leptin both regulate energy metabolism and bone, yet whether their pathways intersect is not known. Transgenic mice overexpressing ΔFosB under the control of the Enolase 2 (ENO2) promoter exhibit high bone mass, high energy expenditure, low fat mass, and low circulating leptin levels. Because leptin is a regulator of bone and ΔFosB acts on leptin‐responsive ventral hypothalamic (VHT) neurons to induce bone anabolism, we hypothesized that regulation of leptin may contribute to the central actions of ΔFosB in the VHT. To address this question, we used adeno‐associated virus (AAV) expression of ΔFosB in the VHT of leptin‐deficient ob/ob mice and genetic crossing of ENO2‐ΔFosB with ob/ob mice. In both models, leptin deficiency prevented ΔFosB‐triggered reduction in body weight, increase in energy expenditure, increase in glucose utilization, and reduction in pancreatic islet size. In contrast, leptin deficiency failed to prevent ΔFosB‐triggered increase in bone mass. Unlike leptin deficiency, galanin deficiency blocked both the metabolic and the bone ΔFosB‐induced effects. Overall, our data demonstrate that, while the catabolic energy metabolism effects of ΔFosB require intact leptin and galanin signaling, the bone mass–accruing effects of ΔFosB require galanin but are independent of leptin. © 2019 American Society for Bone and Mineral Research.
Voltammetry Application of Molecularly Imprinted Polyacrylamide as Vanillin Receptor in Desserts

The proposed work reflects a polyacrylamide with molecular imprints over graphite substrate (MIPAM/GP electrochemical sensor) fabricated to detect the flavoring element vanillin (VNL). The synthesized material has been characterized with scanning electron microscope (SEM), Fourier transform infrared (FTIR) spectroscope, and UV–visible (UV-Vis) spectroscope. A three-electrode arrangement has been used to evaluate the electrode’s analytical performance using cyclic voltammetry (CV) and differential pulse voltammetry (DPV). The electrode featured a wide linearity range of 0.1– $1000 ~\mu \text{M}$ in addition to the limit of detection (LOD) of 1.43 nM. The fabricated sensor demonstrated excellent repeatability, reproducibility, and selectivity at low cost with long-term stability. The practical application of the MIPAM/GP electrode was assessed using various dessert extracts such as ice cream, yogurt, custard, milkshake, and the results were promising when compared to the high-performance liquid chromatography (HPLC) study.
Thurston's Riemannian metric for Teichmüller space

Possibly the most interesting structures on the Teichmuller space are those defined directly from structures on a compact Riemann surface. The quintessential example is due to Riemann himself. The complex structure of the Teichmuller space Tg is uniquely determined by the condition that the period mapping to the Siegel upper half-space be holomorphic. Recall that the period mapping is given by the matrix of periods of abelian differentials, the basic numerical invariant of the complex structure of a compact surface. A second example of such a geometry on the Teichmuller space is the KobayashiTeichmuller metric. The Kobayashi metric of a complex manifold M is defined as the solution to an extremal problem for maps of the unit disc into M. On the other hand the Teichmuller metric is defined in terms of singular flat metrics on a compact surface, specifically metrics given as as = |φ|, φ a holomorphic quadratic differential. Royden's theorem states that the Kobayashi metric of Tg is the Teichmuller metric and thus the extremal maps from the disc to Tg come from singular flat metrics on a surface [9]. Certainly for surfaces of negative Euler characteristic the fundamental Riemannian structure is the hyperbolic metric. A natural question is to identify the geometry on Teichmuller space coming from the hyperbolic surface geometry. Two elements of the geometry are already known: the geodesic length functions and Thurston's earthquakes. Indeed both are defined in terms of the hyperbolic geometry of a compact surface. In [13], [14] we found that the Weil-Petersson Kahler form is also part of the geometry. Specifically if ΐa, la on Tg are respectively the earthquake tangent field and the geodesic length function associated to a simple closed geodesic α, then ω(ία, ) = -dla, ta and -dla are dual in the Kahler form. An immediate consequence is that the Kahler
Modelling the diffuse fraction of global solar radiation on a horizontal surface

For various applications it is necessary to know not only global solar radiation values, but also the diffuse and beam components. Because often only global values are available, there have been several models developed to establish correlations between the diffuse fraction and various predictors. These typically include the clearness index, but also may include the solar angle, temperature and humidity. The clearness index is the proportion of extraterrestrial radiation reaching a location, where the extraterrestrial value used in the calculation varies with latitude and time of year. These correlations have been developed using data principally from latitudes greater than 40°, often using only data from a few locations and with few exceptions have not used solar altitude as a predictor. Generally the data consist of hourly integrated values. A model has been developed using hourly data from a weather station set up at Deakin University, Geelong. Another model has also been developed for 15 minute data values in order to ascertain if the smoothing generated by using hourly data makes a significant difference to overall results. The construction of such models has been investigated, enabling an extension to the research, inclusive of other stations, to be performed systematically. A final investigation was carried out, using data from other Australian locations, to explain some of the considerable scatter by adding apparent solar time as a predictor, which proved to be significantly better than solar altitude.
Irreversible interaction between cumulants in homogeneous, isotropic, two‐dimensional turbulence theory

The hierarchy describing homogeneous and isotropic two‐dimensional turbulence is used to show that one of the effects of (n + 1)‐th order cumulants is to introduce a turbulent relaxation frequency (or eddy‐damping rate) in the equation for the rate of change of n‐th order cumulants. As a result, it is possible to construct a Markovian eddy‐damped (n + 1)‐th order cumulant‐discard approximation in which the eddy‐damping rate simulates the irreversibility due to the infinite serie of cumulants with order greater than n. In the case of our Markovian eddy‐damped quasi‐normal approximation the governing equations for the evolution of the energy spectrum are compared to those of stochastic models like the generalized random phase approximation or the self‐consistent field approximation.
Dissecting Causal Associations of Diet-Derived Circulating Antioxidants with Six Major Mental Disorders: A Mendelian Randomization Study

Although observational studies have suggested associations between circulating antioxidants and many mental disorders, causal inferences have not been confirmed. Mendelian randomization (MR) analyses were conducted using summary-level statistics from genome-wide association studies (GWASs) to explore whether genetically determined absolute circulating antioxidants (i.e., ascorbate, retinol, β-carotene, and lycopene) and metabolites (i.e., α- and γ-tocopherol, ascorbate, and retinol) were causally associated with the risk of six major mental disorders, including anxiety disorders (AD), major depressive disorder (MDD), bipolar disorder (BIP), schizophrenia (SCZ), post-traumatic stress disorder (PTSD), and obsessive–compulsive disorder (OCD). MR analyses were performed per specific-outcome databases, including the largest GWAS published to date (from 9725 for OCD to 413,466 for BIP participants), UK Biobank (over 370,000 participants), and FinnGen (over 270,000 participants), followed by meta-analyses. We found no significant evidence that genetically determined diet-derived circulating antioxidants were significantly causally associated with the risk of the six above-mentioned major mental disorders. For absolute antioxidant levels, the odds ratios (ORs) ranged from 0.91 (95% CI, 0.67–1.23) for the effect of β-carotene on OCD to 1.18 (95% CI, 0.90–1.54) for the effect of ascorbate on OCD. Similarly, for antioxidant metabolites, ORs ranged from 0.87 (95% CI, 0.55–1.38) for the effect of ascorbate on MDD to 1.08 (95% CI, 0.88–1.33) for the effect of ascorbate on OCD. Our study does not support significant causal associations of genetically determined diet-derived circulating antioxidants with the risk of major mental disorders.
Day -1 CD34+ Cells and Platelet Count Predict the Number of Apheresis in Poor-Mobilizer Patients Rescued by Plerixafor

Plerixafor is widely used as up-front treatment with G-CSF to enhance peripheral blood hematopoietic stem cell output in patients failing previous mobilizations. Less frequently, plerixafor is used to rescue an unsatisfactory mobilization following chemotherapy (CT) and G-CSF. This study investigates if pre-collection factors affect the CD34+ cell harvest in chemotherapy and G-CSF mobilizations rescued by plerixafor. Clinical and hematological data relative to patients, mobilization, and apheresis products were retrospectively examined. The outcome was completing a target cell dose ≥ 2 × 106 CD34+ cells/kg at first apheresis. The effect exerted on the outcome by patient- and disease-related factors was investigated by univariate and multivariate logistic regression analysis. The analysis included data from 42 patients affected by hematological (39 patients) and non-hematological malignancies (three patients). Twenty-nine patients (69%) attained the target cell dose at first apheresis. Twelve out of the remaining 13 patients received an additional plerixafor administration, and all accomplished the transplant dose at a second apheresis procedure. Day -1 CD34+ PB count (OR1.46, 95% CI 1.1–1.9, p = 0.008) and platelet count (OR1.0, 95% CI 1.0–1.0, p = 0.033) predicted the achievement of the target dose at first apheresis, independently of pre-mobilization CT, radiation therapy, and disease status at mobilization. At ROC curve analysis, the best cut-off value predicting the successful collection at first apheresis was 7.5/µL for Day -1 CD34+ cell count (AUC 0.830, 0.69 sensitivity, and 0.92 specificity) and 75 × 109/L for Day -1 platelet count (AUC = 0.736, 0.65 sensitivity and 0.85 specificity). In conclusion, on-demand plerixafor rescue allows a successful stem cell collection, irrespectively of disease type and status, prior CT lines, and radiation exposure. Pre-apheresis CD34+ cells and platelet count predict the need for one or two aphereses.
Redundant Parallel Beam Multiaxis Force Sensor—Stress Correlation Coefficient

The stress nonuniformity on the loading neck is an important factor that leads to the local force error of an individual multiaxis force sensor (MAFS) in a distributed multiaxis force sensing system (DMAFSS). The stress correlation coefficient is used to characterize the stress nonuniformity. The stress correlation coefficient decreases with the increase of the loading offset. A full-constrained high-relative-stiffness-ratio structure is important for an MAFS to obtain a good stress correlation coefficient on its loading neck under various external loads. An individual MAFS with two loading necks is employed in the sensing system to increase the relative stiffness ratio. A thin loading neck, a long loading neck distance, and a high stiffness loading frame are important for the high-relative-stiffness-ratio structure. A local high-relative-stiffness-ratio structure is valuable for a large-scale DMAFSS. The mechanical hinge on the loading neck is useful to realize a large-scale lightweight DMAFSS. The extreme load including the load outside the reference loading zone and the concentrated torque affects the stress correlation coefficient apparently which should be specified in future standards.
Leigh Syndrome: Spectrum of Molecular Defects and Clinical Features in Russia

Leigh syndrome (LS), also known as infantile subacute necrotizing encephalopathy, is the most frequent mitochondrial disorder in children. Recently, more than 80 genes have been associated with LS, which greatly complicates the diagnosis. In this article, we present clinical and molecular findings of 219 patients with LS and give the detailed description of three cases with rare findings in nuclear genes MORC2, NARS2 and VPS13D, demonstrating wide genetic heterogeneity of this mitochondrial disease. The most common cause of LS in Russian patients are pathogenic variants in the SURF1 gene (44.3% of patients). The most frequent pathogenic variant is c. 845_846delCT (66.0% of mutant alleles; 128/192), which is also widespread in Eastern Europe. Five main LS genes, SURF1, SCO2, MT-ATP6, MT-ND5 and PDHA1, account for 70% of all LS cases in the Russian Federation. Using next generation sequencing (NGS) technique, we were able to detect pathogenic variants in other nuclear genes: NDUFV1, NDUFS2, NDUFS8, NDUFAF5, NDUFAF6, NDUFA10, SUCLG1, GFM2, COX10, PMPCB, NARS2, PDHB and SLC19A3, including two genes previously associated with Leigh-like phenotypes—MORC2 and VPS13D. We found 49 previously undescribed nucleotide variants, including two deep intronic variants which affect splicing.
Neutrino physics within and beyond the three flavour oscillation

I will discuss several possible choices for the mass scale M of the Majorana leptons, complementing the Standard Model to describe neutrino masses and oscillations. Depending on M, they can or cannot accommodate eV neutrino anomalies, lead to baryogenesis, provide the dark matter candidate, ensure the stability of the Higgs mass against radiative corrections, and be directly searched at some experiments.
Reflecting the Quality Degradation of Engine Oil by the Thermal Diffusivity: Radiative and Nonradiative Analyses

Ageing of engine oil is an important issue determining the engine life and performance. The present work attempts to delineate the ageing-induced changes in engine oil through the mode-mismatched dual-beam thermal lens (MMDBTL) technique and other conventional spectroscopic techniques. For the analyses, engine oil samples were collected after every 200 km of runtime. As the thermal diffusivity is related to the nonradiative deexcitation upon optical absorption, comprehensive radiative and nonradiative analyses were carried out. The Ultraviolet-Visible, Fourier transform infrared, and Nuclear magnetic resonance spectroscopic analyses point to the structural modification as a result of the breaking of the long-chain hydrocarbons into ketones, aldehydes, esters, and other compounds. This modifies the absorption pattern, which can also be understood from the nonlinear refractive index study using the Z-scan technique. The compositional variations associated with the degradation upon ageing, the length of the hydrocarbon chain, and the formation of newer molecules account for the enhancement of the thermal diffusivity revealed through the MMBDTL techniques. The complementary nature of the radiative and nonradiative emission is understood from the fluorescence study. Thus, the study reveals the possibility of thermal diffusivity measurement as an effective tool for the quality monitoring of engine oil.
Management of Diabetes during School Hours: A Cross-Sectional Questionnaire Study in Denmark

Managing diabetes is complicated for many children. It often requires support from an adult during the school day. In Denmark, most children spend 30–35 h a week at school. Nevertheless, diabetes management in schools remains largely uninvestigated. This study aimed to examine the characteristics and organization of diabetes management in Danish primary schools from the personnel’s perspective. All primary schools in Denmark were invited to participate in the study (n = 2129), and 525 schools were included. A questionnaire was constructed and sent by email. Questionnaire data are presented in the descriptive statistics and compared with the ISPAD guidelines. According to 77.2% of respondents, school personnel had received training in diabetes management, and 78.5% of the schools had at least one person available for diabetes support every day. Respondents felt prepared to help the students with counting carbohydrates (38.9%), dosing insulin (39.1%), and helping the students during high (52.1%) or low (60.3%) blood sugar levels, insulin chock (35.2%), or during activities (36.3%). Yet, diabetes management was a challenging task. Only 61.7% had an action plan for diabetes management, 37.4% had face-to-face information meetings with the parents, and 55.1% of respondents reported having sufficient time to cooperate with the parents.
Experimental analysis and theoretical model for anomalously high ideality factors in ZnO/diamond p-n junction diode

High-quality heterojunctions between p-type diamond single-crystalline films and highly oriented n-type ZnO films were fabricated by depositing the p-type diamond single-crystal films on the Io-type diamond single crystal using a hot filament chemical vapor deposition, and later growing a highly oriented n-type ZnO film on the p-type diamond single-crystal film by magnetron sputtering. Interestingly, anomalously high ideality factors (n≫2.0) in the prepared ZnO/diamond p–n junction diode in the interim bias voltage range were measured. For this, detailed electronic characterizations of the fabricated p–n junction were conducted, and a theoretical model was proposed to clarify the much higher ideality factors of the special heterojunction diode.
The Validation of the Human Contribution to Quality: A Case Study at Lockheed Martin Aeronautics - Fort Worth

Abstract A major resource for quality exists at Lockheed Martin Aeronautics - Fort Worth with the average age of the workers approaching 50 years with over 20 years employment. Realizing the asset present within this highly experienced work force became a major effort for improving quality at this plant. Tapping this resource occurred both in an assessment of the perception of factors that led to a successful quality initiative and in an ergonomics effort that focused on meeting the capabilities of the worker in the workplace. These programs were integrated for a holistic approach to continuous improvement. This paper will review the specifics of the ergonomics program that increased quality and productivity and reduced injuries along with their associated costs. The conditions that led to this approach, the elements of the ergonomics program, specific ergonomic innovations with the realized savings, and the results of a quality survey that verified the human oriented approach will be reported in this discussion.
FPGA-Based high speed two ways parallel histogram computation for grey image

- In this paper approaches to the parallel architecture for local parallel histogram computation is studied. In this method, has been used many number of block RAM in FPGA based, each of them to perform a specific function must use a dual-ported of BRAM memory. These hardware techniques need one array of image and another one array for histogram. To reduce number of cycles in the FPGA implementation of our proposed technique read two operation memories at the same time .
Canonical Correlation Analysis in a Predictive System.

AbstractThis discussion focuses on the use and interpretation of canonical correlation analysis in a predictive system using a numerical example. The concepts examined include: the canonical solution; canonical weights; significance tests; correlations of variables with variates; predictive effectiveness; and utility of individual predictor variables. The emphasis is on interpretation of the canonical analysis.