Miracle-dz/UniFAR-FTUs huggingface dataset:
vNVML: An Efficient User Space Library for Virtualizing and Sharing Non-Volatile Memories

The emerging non-volatile memory (NVM) has attractive characteristics such as DRAM-like, low-latency together with the non-volatility of storage devices. Recently, byte-addressable, memory bus-attached NVM has become available. This paper addresses the problem of combining a smaller, faster byte-addressable NVM with a larger, slower storage device, like SSD, to create the impression of a larger and faster byte-addressable NVM which can be shared across many applications. In this paper, we propose vNVML, a user space library for virtualizing and sharing NVM. vNVML provides for applications transaction like memory semantics that ensures write ordering and persistency guarantees across system failures. vNVML exploits DRAM for read caching, to enable improvements in performance and potentially to reduce the number of writes to NVM, extending the NVM lifetime. vNVML is implemented and evaluated with realistic workloads to show that our library allows applications to share NVM, both in a single O/S and when docker like containers are employed. The results from the evaluation show that vNVML incurs less than 10% overhead while providing the benefits of an expanded virtualized NVM space to the applications, allowing applications to safely share the virtual NVM.
Aquifer Imaging with Oscillatory Hydraulic Tomography: Application at the Field Scale

Modeling and laboratory experiments have demonstrated the ability of oscillatory hydraulic tomography (OHT) to characterize heterogeneity in aquifer hydraulic properties. In OHT, a location is stressed via periodic pumping/injection at a set frequency, and the resulting head signal is measured at a number of monitoring locations. The source of oscillations is repeatedly moved, allowing tomographic imaging of aquifer properties. Changing the period of oscillation also results in observations with additional information. In theory, OHT is comparable to other hydraulic tomography methods in that distributed pressure change measurements provide characterization information. In practice, OHT has several benefits including: (1) little to no water injected into or extracted from the aquifer; and (2) an observational signal at a set period that can be easily extracted in the presence of noise. We report the first field application of OHT, carried out at the Boise Hydrogeophysical Research Site (BHRS) using an oscillating signal generator with a very small cycling volume of <2 L, and a period range of 5 to 70 s. For these tests, signals were detected at distances of over 15 m. After processing to extract periodic signal properties, we perform tomography using a frequency‐domain numerical model for groundwater flow. In comparing results against prior characterization results from the BHRS, we find moderate to strong positive correlations between K profiles estimated via different methods at multiple wells, with moderate overall correlation between estimated three‐dimensional (3D) K volumes.
Performance evaluation of ABSA system for Restaurant Domain

Today we are having abundant sources and quantity of information available online. This is result of advancements in the field of computing and communication technologies. Due to the availability of restaurant choices, the restaurant selection has influenced the decision making. So, certain websites are dedicated to the task which provides restaurant summaries in the form of ratings, some textual reviews. But still it is challenge to get impressive (densely informative) summary of review without reading all the reviews. To tackle this situation here aspect based sentiment analysis (ABSA) system is introduced. The main objective of ABSA system is to identify aspects and their polarity. Here the task of aspect term extraction was accomplished by dictionary based approach. Then classifiers (SVM and KNN) were used to identify the polarity and the source group of aspect terms. The classifiers were trained from the training dataset (provided for task 4 in SemEval). In this paper the performance evaluation is described for ABSA system for the restaurant domain.
Design, Modeling, and Experimental Evaluation of a Compact Piezoelectric XY Platform for Large Travel Range

A novel piezoelectric <italic>XY</italic> platform driven by a single actuator was presented for a large travel range and compact structure. The actuator operated at the inertial mechanism and moved the output platform step-by-step. A dynamic model of the piezoelectric actuator was established based on the Timoshenko beam theory and Galerkin procedure, which was used to aid the structure design. The dynamic model of the platform system was established based on the dynamic model of the actuator and the LuGre friction model. A prototype was fabricated and its experimental system was established; the total size was 100 <inline-formula> <tex-math notation="LaTeX">$\times $ </tex-math></inline-formula> 100 <inline-formula> <tex-math notation="LaTeX">$\times $ </tex-math></inline-formula> 93.5 mm<sup>3</sup> and the travel range was 15 <inline-formula> <tex-math notation="LaTeX">$\times $ </tex-math></inline-formula> 15 mm<sup>2</sup>. The measured stepper motions agreed well with the simulation results, and the correctness of the dynamic model was confirmed. The proposed platform achieved maximum speeds of 2.13 and 3.11 mm/s along the axes <inline-formula> <tex-math notation="LaTeX">${X}$ </tex-math></inline-formula> and <inline-formula> <tex-math notation="LaTeX">${Y}$ </tex-math></inline-formula>, respectively, and a carrying capacity of 20 kg was achieved. Furthermore, the closed-loop control experiments, including the positioning resolution and the sinusoidal trajectory tracking, were carried out, and a positioning resolution better than <inline-formula> <tex-math notation="LaTeX">$0.4~\mu \text{m}$ </tex-math></inline-formula> and a tracking error rate of 4% were achieved, which revealed the potential of the proposed piezoelectric platform in field of manipulating heavy objects with submicrometer accuracy and large travel range, especially for some specific fields including microparticle manipulation, ultraprecision manufacturing, and optical device posture adjustment where large travel range, high accuracy, and multidimension are expected.
The relative force in squat jump is the best laboratory predictor of sprint performance in adolescent soccer players

Purpose. the aim was to determine the relationships between linear sprint performance and different outcomes relating to isokinetic strength, jump performance, and intermittent Wingate test performance in well-trained young (U19) soccer players. Methods. the total of 18 elite male soccer players (age: 17.6 ± 0.8 years; body mass: 73.3 ± 5.9 kg, height: 180.8 ± 4.8 cm) performed a 20-m sprint test, countermovement jump, squat jump (SqJ), isokinetic measurement of knee flexors and extensors strength, and intermittent anaerobic test on a bicycle ergometer (IAntbE10×6s with a 30-s rest interval). the strength and power outcomes of laboratory tests served as possible predictors of sprint performance in multiple regression analyses. Results. the correlation analyses showed a significant relationship between all sprint lengths and relative maximum force measured by SqJ (r value: from –0.48 to –0.67) and between all sprint lengths and peak power (PP) measured by IAntbE10×6s (r value: from –0.47 to –0.55). the average power measured by IAntbE10×6s was associated with sprint lengths of 10, 15, and 20 m (r value: from –0.45 to –0.49). the SqJ predicted the 5-m sprint (R = 0.48; R = 0.18) and 10-m sprint (R = 0.55; R = 0.26). the PP together with the relative force (RF) predicted the 15-m (R = 0.65; R = 0.51) and 20-m (R = 0.77; R = 0.64) sprint performance. Conclusions. the RF in SqJ can be used as a parameter relevant to linear 5-m, 10-m, 15-m, and 20-m sprint. together with PP, it can be applied as a parameter relevant to linear 15-m and 20-m sprint.
The small-scale turbulent dynamo in smoothed particle magnetohydrodynamics

Supersonic turbulence is believed to be at the heart of star formation. We have performed smoothed particle magnetohydrodynamics (SPMHD) simulations of the small- scale dynamo amplification of magnetic fields in supersonic turbulence. The calculations use isothermal gas driven at rms velocity of Mach 10 so that conditions are representative of starforming molecular clouds in the Milky Way. The growth of magnetic energy is followed for 10 orders in magnitude until it reaches saturation, a few percent of the kinetic energy. The results of our dynamo calculations are compared with results from grid-based methods, finding excellent agreement on their statistics and their qualitative behaviour. The simulations utilise the latest algorithmic developments we have developed, in particular, a new divergence cleaning approach to maintain the solenoidal constraint on the magnetic field and a method to reduce the numerical dissipation of the magnetic shock capturing scheme. We demonstrate that our divergence cleaning method may be used to achieve ∇ • B = 0 to machine precision, albeit at significant computational expense.
Is deep squat movement strategy related to floor-to-waist height lifting strategy: implications for physical employment testing

Abstract Generalised predictive tests may be viable screening tools to evaluate job candidate workability if movement strategy used in assessment is consistent with movement strategy used in work. This study investigated if deep squat (DS) kinematics could predict floor-to-waist height lifting kinematics. Participants performed three DS repetitions, and 10 lifts of both a 10 kg and 20 kg box. Whole body kinematics were collected to calculate knee, hip and low back angles, and coordination as measured by relative phase angles. Movement features of lower extremity control, including knee and hip angles and coordination, were significantly correlated (r = 0.43–0.85) between the DS and lifting. However, low back movement features, measures linked to injury risk, were not significantly correlated between the DS and lifting. These findings do not support the DS as a suitable movement screen to predict lifting strategy, specifically when considering low back control. Practitioner summary: This study investigated whether lifting strategy could be inferred from deep squat performance. Knee and hip movement strategies were associated between the deep squat and lifting. However, inconsistencies in low back control between the deep squat and lifting limit the deep squat’s injury risk assessment potential.
Reliance on multiple performance measures and manager performance

Purpose – The performance measurement literature suggests that companies should consider increasing the diversity of their performance measures to embrace both financial and non‐financial measures. The purpose of this paper is to examine whether the use of multiple performance measures which includes both financial and non‐financial measures in evaluating subordinates' performance (reliance on multiple performance measures (RMPM)) affects their performance, or whether the effect is contingent on the specificity and difficulty of the goals contained in the measures.Design/methodology/approach – A questionnaire survey to various functional managers within a single organization supported by interviews.Findings – The effect of RMPM on subordinate managers' performance is contingent on goal specificity. However, the paper does not find the same results for goal difficulty. These findings are discussed within the context of the organization studied.Research limitations/implications – The samples are from a sing.
The Effect of Shortening-induced Torque Depression on Fatigue-related Sex Differences.

Residual torque depression (rTD) is the decrease in isometric torque following active shortening of skeletal muscle, compared to a purely isometric (ISO) contraction performed at the same muscle length and level of activation. Performance fatigability is defined as any exercise-induced reduction in voluntary force or power, and females are typically more fatigue resistant than males at low intensity isometric contractions. PURPOSE This study investigated performance fatigability in males and females during ISO contractions and isometric contractions following active shortening (rTD). METHODS 14 females (22 ± 2 years) and 14 males (23 ± 2 years) performed three baseline maximum voluntary contractions (MVCs) of the dorsiflexors. The MVCs were used to determine a 30% submaximal torque target, which participants matched as steadily as possible until task failure. The ISO fatigue task was performed at 10° plantar flexion. In the rTD session, the participants' ankle was rotated from 40° to 10° plantar flexion prior to performing the same fatigue task. MVCs were performed immediately after task failure, 30-s, 1, 2, 3, 4, 5, 10, 20, and 30-mins after task failure to track recovery. RESULTS The baseline MVC torque amplitude for males (32.1 ± 6.6 N·m) was 31% greater than females (22.3 ± 3.1 N·m) (p < 0.001, ηp = 0.490). Female's time to task failure was 44% longer than males in the ISO state (p = 0.032, ηp = 0.164). However, there was no sex-difference in the rTD state (p = 0.142). CONCLUSION It appears that the sex-differences in fatigue resistance observed in a low intensity ISO task are abolished in the isometric state following an active shortening contraction.
Comparative CCM-DCM Design Evaluation of Power Inductors in Interleaved PFC Stage for Electric Vehicle Battery Chargers

This paper deals with the evaluation of a comparative design of power inductors in two legs interleaved boost Power Factor Corrector (PFC) converter applied as front-end in 3.3kW battery charger for electric vehicles. The boost inductors have been designed and compared in the PFC application in Continuous Current Mode (CCM) and Discontinuous Current Mode (DCM) operation. A procedure to design the inductors in its electrical and magnetic parts procedure based on MATLAB scripts is described. The interleaved boost inductor power losses are evaluated. The leg current switching behavior in an actual PFC converter with the inductors carried out from the design procedure is presented. Finally, the advantages and drawbacks of the inductor in CCM and DCM operating conditions are discussed.
Component Mode Synthesis Based SSI Analysis of Complex Structural Systems Using SASSI

Three-dimensional seismic soil-structure interaction (SSI) analysis of nuclear power plants (NPP) is often performed in frequency domain using the computer program SASSI [1]. This enables the analyst to properly a) address the effects of wave radiation in an unbounded soil media, b) incorporate strain-compatible soil shear modulus and damping properties and c) specify input motion in the free field using de-convolution method and/or spatially variable ground motions. For large, complex structural systems with multi-million degrees of freedom (DOF) and large foundation impedance matrices associated with deeply embedded foundations, the conventional sub-structuring analysis approach employed in SASSI often results in a coefficient matrix that is too large to solve with currently available computer resources. To address this problem, the method of component mode synthesis (CMS) is employed in the SSI analysis. This involves partitioning the structure into several interconnected components, calculating the reduced-order model of each component, and then assembling the reduced-order component models into a global model of the total SSI system. This technique has been implemented in MTR/SASSI® [2] utilizing the super-element capability. After the component boundary and foundation motions of the synthesized SSI model are determined, these motions are substituted back into the structural component model to compute the response of the structure. This paper presents the formulation of component mode models, and their implementation into the global SSI model. To check out this procedure, an example of seismic SSI analysis of a simplified NPP model on flexible basemat subject to horizontal and vertical excitations is considered. The total SSI system is first analyzed with SASSI using the conventional approach to compute the baseline (target) solution. The structure is then partitioned from the basemat and analyzed separately using the ANSYS® [3] program to compute the component mode properties that are used to form the boundary super-elements. These super-elements are input into the foundation/soil model and analyzed by MTR/SASSI® to calculate the basemat response. The response of the flexible basemat is checked against the baseline solution. In the final step, the foundation basemat response that includes the SSI effects is imposed onto the structural component to calculate the response of the structure. Comparison of the responses show excellent agreement between the baseline solution and those obtained using CMS method.Copyright © 2009 by ASME
Estimation of Mean on the Basis of Conditional Simple Random Sample

Abstract Estimation of the population mean in a finite and fixed population on the basis of the conditional simple random sampling design dependent on order statistics (quantiles) of an auxiliary variable is considered. Properties of the well-known Horvitz-Thompson and ratio type estimators as well as the sample mean are taken into account under the conditional simple random sampling designs. The considered examples of empirical analysis lead to the conclusion that under some additional conditions the proposed estimation strategies based on the conditional simple random sample are usually more accurate than the mean from the simple random sample drawn without replacement.
The Histone Methyltransferase DOT1L Is a Functional Component of Estrogen Receptor Alpha Signaling in Ovarian Cancer Cells

Although a large fraction of high-grade serous epithelial ovarian cancers (OCs) expresses Estrogen Receptor alpha (ERα), anti-estrogen-based therapies are still not widely used against these tumors due to a lack of sufficient evidence. The histone methyltransferase Disruptor of telomeric silencing-1-like (DOT1L), which is a modulator of ERα transcriptional activity in breast cancer, controls chromatin functions involved in tumor initiation and progression and has been proposed as a prognostic OC biomarker. As molecular and clinico-pathological data from TCGA suggest a correlation between ERα and DOT1L expression and OC prognosis, the presence and significance of ERα/DOT1L association was investigated in chemotherapy-sensitive and chemotherapy-resistant ER+ OC cells. RNA sequencing before and after inhibition of these factors showed that their activity is implicated in OC cell proliferation and that they functionally cooperate with each other to control the transcription of genes involved in key cancer cell features, such as the cell cycle, epithelial-mesenchymal transition (EMT), drug metabolism, and cell-to-cell signaling, as well as expression of the ERα gene itself. Together with evidence from loss-of-function genetic screens showing that ERα and DOT1L behave as core fitness factors in OC cells, these results suggest that combined inhibition of their activity might be effective against ERα-expressing, chemotherapy-resistant ovarian tumors.
QoSRP: A Cross-Layer QoS Channel-Aware Routing Protocol for the Internet of Underwater Acoustic Sensor Networks

Quality of service (QoS)-aware data gathering in static-channel based underwater wireless sensor networks (UWSNs) is severely limited due to location and time-dependent acoustic channel communication characteristics. This paper proposes a novel cross-layer QoS-aware multichannel routing protocol called QoSRP for the internet of UWSNs-based time-critical marine monitoring applications. The proposed QoSRP scheme considers the unique characteristics of the acoustic communication in highly dynamic network topology during gathering and relaying events data towards the sink. The proposed QoSRP scheme during the time-critical events data-gathering process employs three basic mechanisms, namely underwater channel detection (UWCD), underwater channel assignment (UWCA) and underwater packets forwarding (UWPF). The UWCD mechanism finds the vacant channels with a high probability of detection and low probability of missed detection and false alarms. The UWCA scheme assigns high data rates channels to acoustic sensor nodes (ASNs) with longer idle probability in a robust manner. Lastly, the UWPF mechanism during conveying information avoids congestion, data path loops and balances the data traffic load in UWSNs. The QoSRP scheme is validated through extensive simulations conducted by NS2 and AquaSim 2.0 in underwater environments (UWEs). The simulation results reveal that the QoSRP protocol performs better compared to existing routing schemes in UWSNs.
Association between cerebral atrophy and osteoporotic vertebral compression fractures

Purpose Osteoporotic vertebral compression fractures (OVCFs) have a serious impact on people’s health and quality of life. The purpose of this study was to analyze brain volume in patients with osteoporosis using brain magnetic resonance imaging (MRI) and to investigate the relationship with osteoporotic vertebral compression fractures. Materials and methods We included 246 patients with osteoporosis who underwent thoracolumbar radiographs and brain MRI at our hospital. Clinical data on age, sex, bone mineral density, height, weight, osteoporosis medication, hypertension, diabetes, alcohol drinking, and smoking were collected. Intracranial cavity, brain parenchyma, and lateral ventricles volumes were measured using brain MRI with a semiautomated tool. Results We founded an independent correlation between age and volume percentages of the brain parenchyma and lateral ventricles. We observed a statistically significant decrease in volume percentage of the brain parenchyma and an increase in volume percentage of the lateral ventricles with increasing age. In addition, we confirmed that patients with OVCF showed a significantly lower volume percentage of brain parenchyma than patients without OVCF. Conclusion We observed a significant association between OVCF and volume percentage of brain parenchyma. Degeneration of the brain may lead to a high incidence of falls, and OVCF may occur more frequently in patients with osteoporosis.
The Financial Security of Sales in Small- and Medium-Sized Enterprises in Poland

This study aims to determine the elasticity of ROS with respect to the financial contribution of business enterprises, the EU Operational Fund, and the EU Market and Capital Support Fund in Poland in 2014–2020. The elasticity of profit margins with respect to the enterprises’ financial contribution is 1.9, i.e. almost twice the potential rate of 1. The elasticity of ROS with respect to EU funding as a means of financial security is negative. However, the average rate of increase in aggregate ROS (30%) will be ensured by the average rate of increase in ROS from the enterprises’ own financial contribution (15%), the EU Operational Fund (15%), and the EU Market and Capital Support Fund for SMSEs in Poland in 2014–2020 (24%).