Miracle-dz/UniFAR-FTUs huggingface dataset:
Hexahedral-Dominant Meshing

This article introduces a method that generates a hexahedral-dominant mesh from an input tetrahedral mesh. It follows a three-step pipeline similar to the one proposed by Carrier Baudoin et al.: (1) generate a frame field, (2) generate a pointset P that is mostly organized on a regular grid locally aligned with the frame field, and (3) generate the hexahedral-dominant mesh by recombining the tetrahedra obtained from the constrained Delaunay triangulation of P. For step (1), we use a state-of-the-art algorithm to generate a smooth frame field. For step (2), we introduce an extension of Periodic Global Parameterization to the volumetric case. As compared with other global parameterization methods (such as CubeCover), our method relaxes some global constraints to avoid creating degenerate elements, at the expense of introducing some singularities that are meshed using non-hexahedral elements. For step (3), we build on the formalism introduced by Meshkat and Talmor, fill in a gap in their proof, and provide a complete enumeration of all the possible recombinations, as well as an algorithm that efficiently detects all the matches in a tetrahedral mesh. The method is evaluated and compared with the state of the art on a database of examples with various mesh complexities, varying from academic examples to real industrial cases. Compared with the method of Carrier-Baudoin et al., the method results in better scores for classical quality criteria of hexahedral-dominant meshes (hexahedral proportion, scaled Jacobian, etc.). The method also shows better robustness than CubeCover and its derivatives when applied to complicated industrial models.
The Human Factors of Home Health Care: A Conceptual Model for Examining Safety and Quality Concerns

Objective: Increases in longevity, a growing elderly population, variation of skill and knowledge among home providers, and a steady migration of medical devices and technologies into the home are placing new demands on home heath care. The paper examines the human factors challenges associated with these converging trends. Methods: A growing literature base relevant to home health care is examined, and with the aid of a socio-technical systems model, the paper explores safety and quality concerns to which the converging trends are likely to give rise. Findings: The sensory, physical, and cognitive limitations of patients and their caregivers play a key role in the ability of patients to manage home health care needs. Other major components affecting successful home health care management are the nature of health care tasks undertaken, the design features of the physical environment, the medical devices and technologies used, the social and community environments, and distal but relevant external factors that shape the context of care. Home health care stakeholders can avoid foreseeable threats to safety and quality by recognizing that components need to be designed in a way that takes into account their interactions with one another and with the capabilities and limitations of patients and their providers. Conclusions: By examining the major components and interdependencies of the home health care delivery system, a human factors perspective offers insights into ways that safety and quality can be compromised and can help pave the way for new modes of thinking in home health care policy.
Effect of Radiation on MHD Free Convective Flow over a Stretching Sheet in the Presence of Heat Source/Sink

In this analysis, effects of viscous dissipation and thermal radiation on an electrically conducting boundary layer flow, heat and mass transfer of a fluid through a porous medium over a stretching sheet in the presence of heat source/sink is considered. The symmetry groups admitted by the corresponding boundary value problem are obtained by using symmetric transformations. These transformations are used to convert the partial differential equations of the governing equations into self-similar non-linear ordinary differential equations. These transformed ODEs are solved by employing Runge-Kutta fourth order with shooting method. Numerical results obtained for different thermo-physical parameters characterizes the flow phenomena are drawn graphically and effects of various physical parameters on velocity, temperature and concentration profiles are discussed. Numerical computation for skin friction, Nusselt number and Sherwood number are also obtained and presented in Tables.
A Social-Energy Based Cluster Management Scheme for User-Centric Ultra-Dense Networks

With the exponential growth of traffic demand, ultra-dense networks are proposed to increase the network capacity. However, the high-density access point (AP) deployment will increase the complexity of AP coordination, and AP cluster (APC) needs to be considered in practical implementations. Due to the dynamic changes in spatiotemporal distribution of users and service demand, we propose a social-energy-based cluster management (SECM) scheme in order to reduce APC update frequency. Specifically, in social domain, we propose a congeniality-based personalized recommendation (CPR) algorithm to predict users' incoming requests. We further propose a CPR-based AP cluster algorithm to solve the matching problem among users, APs, and content. In energy domain, we propose an inter-cluster energy cooperation scheme to avoid the shutting down of members in AP cluster and reduce the update of clusters. Numerical results demonstrate that our proposed scheme can achieve a gain of 77.8% in the APC management utility averagely, without loss of fairness compared with the other state-of-the-art schemes.
STUDY OF THE INFLUENCE OF EXTERNAL PRESSURE AND SINTERING TEMPERATURE ON THE STRUCTURE AND PROPERTIES OF THE SYSTEM ND-FE-С,B

Modern industrial production of precision machinery, microelectronics, Aeronautics, rocket science puts high demands on the materials. The main criteria which should characterize the material, high quality, low production cost, minimum material consumption while maintaining the best physical and mechanical properties of products in a production environment. In the global and domestic literature little attention is paid to using one of the thermodynamic parameters of pressure to control the crystallization and sintering of the permanent magnets. Therefore, in this paper applied an integrated approach during the study of the dependence of the coercive force from alloying and heat treatment of hard magnetic alloy Nd-Fe-C, received high-speed cooling, sintering the compact under pressure up to 1 GPa. In this formulation, the problem of obtaining high coercitive magnets is relevant and timely. As is known, with increasing temperature, there is thermal expansion of telephone that is, due to the difference of linear expansion coefficients of the materials of the films, molds and bolts you can get more “heat” pressure. For calculations was created analysis model in the program ANSIS. In the design model include: mold, bolts and tapes. The material of the mold and bolts were selected so that the difference in coefficients of linear expansion to create additional pressure on the composite material caused by temperature change. For modeling were used: the dependence of young's modulus for materials design models, the coefficient of linear expansion ά for phase Nd2Fe14С. The dependence of the tensile strength, the yield strength of the bolt and the mold temperature. The calculations showed that after temperature of 1 Candidate of Technical Sciences, Associate Professor of the Department of Physics, Zaporizhzhia National Technical University, Ukraine orcid.org/0000-0002-6408-0463
HongrES1, a cauda epididymis‐specific protein, is involved in capacitation of guinea pig sperm

Capacitation requires removal of proteins secreted by the cauda epididymis. Previously, we isolated and cloned the HongrES1 gene from rat cauda epididymis and found that it was exclusively expressed there. Here we report that HongrES1 mRNA is also expressed in the guinea pig cauda epididymis using Northern blot analysis, and the molecular weight of its cognate protein is approximately 48 kDa by Western blot analysis. Therefore, we investigated whether HongrES1 was involved in regulation of sperm capacitation in guinea pig. The results show that HongrES1 antisera (HA) significantly enhances sperm capacitation with maximal stimulation at a dilution of 1:500. Capacitation was reversed when capacitated spermatozoa were re‐exposed to HongrES1 protein (HP, 0.25 µg/ml). In other words, HP acted as a decapacitation factor. HA accelerated the onset of capacitation and promoted a sperm hyperactivated motility response. Sperm capacitation was accelerated by HA stimulation of extracellular calcium influx while HP prevented extracellular calcium from influxing. Indirect immunofluorescence staining finds HP localized over the acrosomal anterior region of the sperm head, which exfoliates gradually during capacitation incubation, and completely disappeared after the acrosome reaction. Thus, HongrES1 expressed by the cauda epididymis is a novel molecule that regulates the physiology of guinea pig sperm prior to fertilization. Mol. Reprod. Dev. 76: 984–993, 2009. © 2009 Wiley‐Liss, Inc.
Effect of Crime Prevention through Environmental Design (CPTED) Measures on Active Living and Fear of Crime

Crime prevention through environmental design (CPTED) has become a popular urban planning approach to preventing crime and mitigating fear of crime through the improvement of physical neighborhood environments. CPTED is widely used to improve deteriorated neighborhoods that suffer from crime. However, few studies have empirically examined the complex relationships among CPTED, fear of crime, and active living. Our study, therefore, investigated the effects of CPTED measures on walking frequency and fear of crime, analyzing behavioral data of residents living in participatory neighborhood regeneration areas and matched neighborhoods. We analyzed survey data from 12 neighborhoods that implemented CPTED approaches and 12 matched neighborhoods in Seoul, Korea, using structural equation modeling, which could consistently estimate complex direct and indirect relationships between a latent variable (fear of crime) and observable variables (CPTED measures and walking frequency). We designed the survey instrument as a smartphone app. Participants were recruited from 102 locations within the 24 selected neighborhoods; in total, 623 individuals returned surveys. The results revealed that sufficient closed-circuit television, street lighting, and maintenance played a significant role in mitigating fear of crime. This study has implications for planning and policy issues related to CPTED, mental health, and active living.
Recent Developments in Flexible Organic Light‐Emitting Devices

As the demand for display technology in consumer electronics and lighting panels increases, thin, light, high‐quality, and more cost‐effective light‐emitting devices are required. Organic light‐emitting devices (OLEDs), satisfying the criteria exactly, have been considered the most promising next‐generation display and lighting technique. In particular, an OLED based on flexible substrate enables the device to be applied to curved displays, electronic newspapers, wearable displays, and conceptual lighting panels, has been always in the spotlight both in science and industry. Great advances on flexible OLEDs (FOLEDs) have been made over the past three decades. The fundamental elements of FOLEDs including substrates, electrodes, fabrication and encapsulation techniques, as well as the strategies of efficiency improvement are discussed herein. Moreover, emerging electrodes such as graphene, carbon nanotubes, metal nanowire network and their composite, flexible perovskite light emitting devices, and stretchable light emitting devices are also considered. Finally, the future challenges and prospects for these devices are put forward.
Enabling sophisticated analyses of ×86 binaries with RevGen

Current state-of-the-art static analysis tools for binary software operate on ad-hoc intermediate representations (IR) of the machine code. Therefore, even though IRs facilitate program analysis by abstracting away the source language, it is hard to reuse existing implementations of analysis tools in new endeavors. Recently, a new compiler framework — LLVM — has emerged, together with many analysis tools that use its IR. However, these tools rely on a compiler to generate the IR from source code. We propose RevGen, a tool that automatically converts existing binary programs to the standard LLVM IR, making an increasingly large number of static and dynamic analysis frameworks, as well as run-time instrumentation tools, applicable to legacy software. We show the potential of RevGen by converting several programs and device drivers to LLVM and checking the resulting code with off-the-shelf analysis tools.
Gaussian Process Regression with Mismatched Models

Learning curves for Gaussian process regression are well understood when the 'student' model happens to match the 'teacher' (true data generation process). I derive approximations to the learning curves for the more generic case of mismatched models, and find very rich behaviour: For large input space dimensionality, where the results become exact, there are universal (student-independent) plateaux in the learning curve, with transitions in between that can exhibit arbitrarily many over-fitting maxima; over-fitting can occur even if the student estimates the teacher noise level correctly. In lower dimensions, plateaux also appear, and the learning curve remains dependent on the mismatch between student and teacher even in the asymptotic limit of a large number of training examples. Learning with excessively strong smoothness assumptions can be particularly dangerous: For example, a student with a standard radial basis function covariance function will learn a rougher teacher function only logarithmically slowly. All predictions are confirmed by simulations.
Shoulder magnetic resonance arthrography: a prospective randomized study of anterior and posterior ultrasonography-guided contrast injections

Background: Magnetic resonance (MR) arthrography is an accurate imaging method for internal shoulder derangements and rotator cuff pathologies. Both anterior and posterior contrast injection techniques, under palpatory, fluoroscopic, or ultrasonographic guidance have been described in the literature. However, clinical comparisons of the injection techniques remain few. Purpose: To compare the performance of anterior and posterior ultrasonography (US)-guided arthrography injections of the shoulder regarding patient discomfort and influence on diagnostic MR reading, and to illustrate the typical artifacts resulting from contrast leakage in the respective techniques. Material and Methods: 43 MR arthrographies were prospectively randomized into anterior and posterior US-guided contrast injections and performed by two radiologists, with the study of artifacts from contrast leakage. Pain from the injections was assessed by a survey utilizing a 100-mm visual analogue scale (VAS). Results: Of the 23 anterior injections, nine caused contrast artifacts in the subscapular tendon, and in three the leakage extended further anteriorly. Of the 20 posterior injections, 12 showed injection artifacts of the rotator cuff, extending outside the cuff in seven. Two of the anterior and none of the posterior artifacts compromised diagnostic quality. In posterior injections, the leakage regularly occurred at the caudal edge of the infraspinatus muscle and was easily distinguishable from rotator cuff tears. All patients completed the pain survey. Mean VAS scores were 25.0 (median 18, SD 22) for anterior, and 25.4 (median 16, SD 25) for posterior injections. The two radiologists achieved different mean VAS scores but closely agreed as to anterior and posterior VAS scores. Conclusion: Arthrography injections were fairly simple to perform under US guidance. Patient discomfort for anterior and posterior injections was equally minor. A tailored approach utilizing anterior or posterior injections, depending on anticipated shoulder pathology, is recommended. Because in posterior injections all artifacts were posterior and readily recognizable, it seems especially suitable for suspected anterior rotator cuff, joint capsule, and labral pathologies.
High Performance Fabrics Using Nanocellulose

(nano-Abstract Cellulose is the most abundant biopolymer material, which is extensively distributed in plants, marine animals such as tunicates, fungi, bacteria. Nowdays, nanocellulose such as cellulose nanofibrils (CNFs), cellulose nanocrystals (CNCs), and cellulose nanowiskers (CNWs) have come into the spotlight as reinforcing fillers within nanocomposites including reinforced textile due to its low cost, abundant, light-weight, renewability as well as nano-scale dimension. This article has focused on the employment of cellulose nanomaterials in the preparation high performance fabrics.
CuInS2/CdS-Heterostructured Nanotetrapods by Seeded Growth and Their Photovoltaic Properties

We investigate a seeded-growth method for the synthesis of CuInS2 (core)/CdS (arm)-heterostructured nanotetrapods (HNTs), in which wurtzite CdS arms grow on CuInS2-core quantum dot seeds with tunable lengths. The CdS arms of the nanocrystal tetrapods effectively passivate the unstable surface defects and improve the photoluminescence quantum efficiencies to above 40%. Owing to spatially separated quasi-type-II excitons, efficient electron transport along the elongated arms, and enhanced light-absorption capabilities, the CuInS2/CdS-HNT-sensitized solar-cell device exhibits a more than 3-fold increase in the power conversion efficiency compared to that of the control CuInS2@CdS (core@shell) quantum dot device. We believe that the high photoenergy conversion abilities of the quasi-type-II CuInS2/CdS HNTs make them potential candidate materials for use in cost-effective and highly efficient solar cells.
Biofuel Production from Jatropha Bio-Oil Derived Fast Pyrolysis: Effect and Mechanism of CoMoS Supported on Al2O3

The aims of this research was to understand the CoMo/Al2O3 sulfide catalyst effect to remove oxygen-containing and nitrogen-containing molecules from Jatropha bio-oil derived fast pyrolysis converted to biofuels via hydrotreating process. The activity and selectivity of CoMo/γ-Al2O3 sulfided catalysts in hydrodeoxygenation (HDO) of Jatropha bio-oil derived fast pyrolysis was evaluated in a Parr batch reactor under 50 bar of H2 atmosphere for 2 h at 300 320 and 340 °C. It appeared that the CoMo/Al2O3 sulfide catalyst have high performance in activity for promoting the fatty acid, fatty ester, fatty amide and fatty nitrile compounds were converted to paraffin/olefin (Diesel range), this could be the CUS site on supported Al2O3 catalyst. The difference in selectivity products allowed us to propose a reaction scheme.
Primer Design and Marker Clustering for Multiplex SNP-IT Primer Extension Genotyping Assay using Statistical Modeling

MOTIVATION The optimization of the primer design is critical for the development of high-throughput SNP genotyping methods. Recently developed statistical models of the SNP-IT primer extension genotyping reaction allow further improvement of primer quality for the assay. RESULTS Here we describe how the statistical models can be used to improve primer design for the assay. We also show how to optimize clustering of the SNP markers into multiplex panels using statistical model for multiplex SNP-IT. The primer set failure probability calculated by a model is used as a minimization function for both primer selection and primers clustering. Three clustering algorithms for the multiplex genotyping SNP-IT assay are described and their relative performance is evaluated. We also describe the approaches to improve the speed of primer design and clustering calculations when using the statistical models. Our clustering decreases the average failure probability of the marker set by 7-25%. The experimental marker failure rate in the multiplex reaction was reduced dramatically and success rate can be achieved as high as 96%. AVAILABILITY The primer design using statistical models is freely available from www.autoprimer. com.
Anatomical and Physiological Changes Associated with a Recent Dietary Shift in the Lizard Podarcis sicula

Dietary shifts have played a major role in the evolution of many vertebrates. The idea that the evolution of herbivory is physiologically constrained in squamates is challenged by a number of observations that suggest that at least some lizards can overcome the putative physiological difficulties of herbivory on evolutionary and even ecological timescales. We compared a number of morphological and physiological traits purportedly associated with plant consumption between two island populations of the lacertid lizard Podarcis sicula. Previous studies revealed considerable differences in the amount of plant material consumed between those populations. We continued the investigation of this study system and explored the degree of divergence in morphology (dentition, gut morphology), digestive performance (gut passage time, digestive efficiency), and ecology (endosymbiont density). In addition, we also performed a preliminary analysis of the plasticity of some of these modifications. Our results confirm and expand earlier findings concerning divergence in the morphology of feeding structures between two island populations of P. sicula lizards. In addition to the differences in skull dimensions and the prevalence of cecal valves previously reported, these two recently diverged populations also differ in aspects of their dentition (teeth width) and the lengths of the stomach and small intestine. The plasticity experiment suggests that at least some of the changes associated with a dietary shift toward a higher proportion of plant material may be plastic. Our results also show that these morphological changes effectively translate into differences in digestive performance: the population with the longer digestive tract exhibits longer gut passage time and improved digestive efficiency.
Multilayer-Structured Non-leaded Metal/Polymer Composites for Enhanced X-ray Shielding

Polymer-non-leaded metal (tin, bismuth-tin (BiSn) alloy, and tungsten) composites were prepared to investigate the effectiveness of their X-ray shielding. Films of the composites were found to exhibit excellent X-ray shielding due to the uniform dispersion of metal particles in the polymer matrix, as were fabrics impregnated with the BiSn alloy. The fabricated composites effectively absorb penetrating photons. The preparation of composites with a uniform dispersion and a multilayered structure can limit the formation of pin holes. Multilayered BiSn composites exhibit significantly enhanced shielding. The lamination of a tungsten composite film or a BiSn composite film onto a BiSn-coated layered sheet results in better and more uniform shielding. Thus non-leaded BiSn metal-polymer composites can be used in X-ray shielding applications instead of the lead. One advantage that metal BiSn has over tungsten is its low melting temperature, which means that it can be processed in a normal extruder or in internal mixers such as those used in polymer processing.