Miracle-dz/UniFAR-FTUs huggingface dataset:
Filling up the HRM ‘Black Box’; do creativity and management philosophy matter?

Although mediating variables are of importance in the HPWS-Performance nexus, identification of the fitting intervening variable(s) that mediates between the nexuses is a crucial issue, and the number of the mediating variable(s) which would unravel the so called “black box” remains un-resolved and the most burning theoretical and empirical challenge in the Strategic HRM research field.Likewise, moderating variables do have impacts on the HPWS-Performance nexus since the context within which firm operates and the strategic orientations of firms have bearing on the application of HR practices and its effect on the firm’s performance.Given this, this work pro-posed a model which is theorized based on the far-reaching survey of the extant literature.The model theorizes the mediating role of employee creativity and potential moderating role of man-agement philosophy in the HPWS-performance nexus via extensive theoretical and logical argu-ment and exposition. Also, as established by the extant research, HPWS measurement in the context of SME should be employee-oriented, therefore, this work measured HPWS with eight employee-oriented HR architectures, and performance is measured with financial and non-financial performance, for being a widespread adopted measurement in many fields of study.
MAGNETIC ORDERING OF THE ANTIFERROMAGNET CU2MNSNS4 FROM MAGNETIZATION AND NEUTRON-SCATTERING MEASUREMENTS

The work at Tufts University was partially supported by NSF Grant No. DMR-9219727. The research in Zaragoza was supported by CICYT Grant No. MAT94-0043. The work at Brown University was supported by NSF Grant No. DMR-9221141. The Francis Bitter National Magnet Laboratory was supported by NSF.
Dirac operators, shell interactions and discontinuous gauge functions across the boundary

Given a bounded smooth domain $\Omega\subset\mathbb{R}^3$, we explore the relation between couplings of the free Dirac operator $-i\alpha\cdot\nabla+m\beta$ with pure electrostatic shell potentials $\lambda\delta_{\partial\Omega}$ ($\lambda\in\mathbb{R}$) and some perturbations of those potentials given by the normal vector field $N$ on the shell $\partial\Omega$, namely $\{\lambda_e+\lambda_n(\alpha\cdot N)\}\delta_{\partial\Omega}$ ($\lambda_e$, $\lambda_n\in\mathbb{R}$). Under the appropiate change of parameters, the couplings with perturbed and unperturbed electrostatic shell potentials yield unitary equivalent self-adjoint operators. The proof relies on the construction of an explicit family of unitary operators that is well adapted to the study of shell interactions, and fits within the framework of gauge theory. A generalization of such unitary operators also allow us to deal with the self-adjointness of couplings of $-i\alpha\cdot\nabla+m\beta$ with some shell potentials of magnetic type, namely $\lambda(\alpha\cdot N)\delta_{\partial\Omega}$ with $\lambda\in C^1(\partial\Omega)$.
Representation Learning for Treatment Effect Estimation from Observational Data

Estimating individual treatment effect (ITE) is a challenging problem in causal inference, due to the missing counterfactuals and the selection bias. Existing ITE estimation methods mainly focus on balancing the distributions of control and treated groups, but ignore the local similarity information that is helpful. In this paper, we propose a local similarity preserved individual treatment effect (SITE) estimation method based on deep representation learning. SITE preserves local similarity and balances data distributions simultaneously, by focusing on several hard samples in each mini-batch. Experimental results on synthetic and three real-world datasets demonstrate the advantages of the proposed SITE method, compared with the state-of-the-art ITE estimation methods.
Strategy- Proofness On the Condorcet Domain

A social choice rule g selects a member of a given set of alternative X as a function of individual preferences. The Gibbard-Satterthwaite theorem establishes that if preferences are unrestricted and the range of g has at least three members, only dictatorial rules are strategy-proof. However, if the domain of g is the set of profiles at which there exists a strong Condorcet winner, Campbell and Kelly have shown that majority-rule is the only non-dictatorial strategy-proof rule for an odd number of individuals when the range of g contains at least three alternatives. Dasgupta and Maskin consider the case of a continuum of voters as a means of circumventing the issue of parity. Although their analysis provides an approximation for a sufficiently large (but finite) set of individuals, no exact analysis exists for an arbitrary even number of individuals. We are therefore interested in characterizing the family of strategy-proof social choice rules over the Condorcet domain for an even number of individuals. We provide a full characterization when individual preferences are strict linear orderings, and prove several propositions concerning strategy-proof rules when individual preference orderings are permitted to be weak linear orders.
Near-Infrared Spectroscopy (NIRS): A Novel Tool for Intravascular Coronary Imaging

Acute coronary syndrome (ACS) arising from plaque rupture is the leading cause of mortality worldwide. Near-infrared spectroscopy (NIRS) combined with intravascular ultrasound (NIRS-IVUS) is a novel catheter-based intravascular imaging modality that provides a chemogram of the coronary artery wall, which enables the detection of lipid core and specific quantification of lipid accumulation measured as the lipid-core burden index (LCBI) in patients undergoing coronary angiography. Recent studies have shown that NIRS-IVUS can identify vulnerable plaques and vulnerable patients associated with increased risk of adverse cardiovascular events, whereas an increased coronary plaque LCBI may predict a higher risk of future cardiovascular events and periprocedural events. NIRS is a promising tool for the detection of vulnerable plaques in CAD patients, PCI-guidance procedures, and assessment of lipid-lowering therapies. Previous trials have evaluated the impact of statin therapy on coronary NIRS defined lipid cores, whereas NIRS could further be used as a surrogate end point of future ACS in phase II clinical trials evaluating novel anti-atheromatous drug therapies. Multiple ongoing studies address the different potential clinical applications of NIRS-IVUS imaging as a valuable tool for coronary plaque characterization and predictor of future coronary events in CAD patients.
Efficacy of pre-activity stretching

Efficacy of Pre-Activity Stretching by Michelle Nicole Samuel Dr. William Holcomb, Examination Committee Chair Associate Professor of Kinesiology University of Nevada, Las Vegas Pre-activity stretching is commonly performed by athletes as part of their warm-up routine. However, the most recent literature questions the effectiveness of pre-activity stretching. Some literature suggests that pre-activity stretching hinders athletic performance, while others suggest that stretching does not affect performance. Since a clear answer has not yet been determined on pre-activity stretching, this study was designed to investigate the acute effects of static vs. ballistic stretching on vertical jump performance, and torque and power output of the quadriceps and hamstrings, and to compare the effects of stretching between genders. The goal was to determine if pre­ activity stretching is beneficial or detrimental to sports performanee. The results of this study revealed that a practical duration of 90 seconds of stretching did not affect VJ or torque output of the quadriceps and hamstrings. The results of this study will allow strength coaches to properly advise their athletes on pre-activity stretching.
Payout Policy, Agency Conflict and Corporate Governance in Nigeria

This paper investigates payout policy, agency conflicts and corporate governance in Nigeria. Using a sample of thirty (30) listed companies randomly selected in the Nigerian Stock Exchange for the period 2006-2010, the panel OLS regression results indicate that firmsâ investment opportunities and leverage have significant impact on the dividend payout.The corporate governance mechanisms comprising the CEO shareholdings, directorsâ shareholdings and the institutional ownership have positive but non-significant impact on the dividend payout.This means that the insiders and institutional ownership may not complete mitigate the agency conflicts associated with effective dividend payout policy. Moreover, the negative and non-significant association of cash-flow and growth of firms may indicate more retentions by directors which may be expropriated by firmâs management through salaries and other compensations or invested in projects to satisfy personal benefits at the dispense of the shareholders. Therefore, a strong corporate governance mechanism comprising more non-executive directors and institutional ownership is recommended to mitigate the agency conflicts and improve the dividend payout.
Determinants of Career Choice among Students of Institute of Chartered Accountants (Ghana)

The main purpose of this study was to investigate the major factors that influence the career choice among the professional level students of the Institute of Chartered Accountants (Ghana). The study also examined the stage or time in the academic life of the students that they decided on accounting as a career. A questionnaire-based survey was the main method used for this study. Exploratory factor analysis and descriptive analysis were employed to determine the key factors influencing the students’ career choice in accounting and the timing of the students’ decision to choose accounting as a career. The study showed that personal and job prospects factors such as students’ interest in accounting, high earnings expectation, availability of jobs, prestige and teacher influence were the most important factors that influence the career choice among students of The Institute of Chartered Accountants (Ghana). Less important factors included influences of advertisement, peers and parents or family members. The study also revealed that majority of the students, 50.2%, made their decision to pursue a career in accounting at the Senior High School level, followed by 18.6% deciding when they were at Basic School level.
Wind Effects on Sprinkler Irrigation Performance

Sprinkler efficiency, and implications on water waste, is often considered in terms of a single variable, such as minimum distribution uniformity or maximum precipitation rate. However, single variable metrics can be misleading. In addition, metrics, such as distribution uniformity, are measured in zero-wind buildings, which can inadvertently hide the extent to which efficiencies might decline when other variables are introduced, such as wind. The overarching objective of this study was to investigate a multi-variable approach to comparative sprinkler efficiency. The first objective of this study was to measure and analyze both distribution uniformity (DU) and application efficiency (AE) total water caught in target zone divided by total water intended for target zone versus wind speed across different nozzle designs. The second objective was to measure the distribution of the water droplet sizes for the same nozzles’ sprays. Ultimately, the study was intended to determine if measureable trends emerged between the performance of the nozzles, given increasing wind speed, and their respective water droplet size distributions. During the testing, all nozzles’ performance metrics declined with increasing wind – some were affected more than others. Compelling relationships emerged, illustrating a link between a sprinkler’s water droplet size distribution and performance in terms of distribution uniformity and application efficiency.
Green exercise in the UK countryside: Effects on health and psychological well-being, and implications for policy and planning

Abstract There is evidence that contact with the natural environment and green space promotes good health. It is also well known that participation in regular physical activity generates physical and psychological health benefits. The authors have hypothesised that ‘green exercise’ will improve health and psychological well-being, yet few studies have quantified these effects. This study measured the effects of 10 green exercise case studies (including walking, cycling, horse-riding, fishing, canal-boating and conservation activities) in four regions of the UK on 263 participants. Even though these participants were generally an active and healthy group, it was found that green exercise led to a significant improvement in self-esteem and total mood disturbance (with anger-hostility, confusion-bewilderment, depression-dejection and tension-anxiety all improving post-activity). Self-esteem and mood were found not to be affected by the type, intensity or duration of the green exercise, as the results were similar for all 10 case studies. Thus all these activities generated mental health benefits, indicating the potential for a wider health and well-being dividend from green exercise. Green exercise thus has important implications for public and environmental health, and for a wide range of policy sectors.
Synthesis of Monolith Hydroxysodalite from Low Grade Kaolin and its Application as an Adsorbent for Lead

Low grade kaolin is converted to monolith hydroxysodalite dihydrate by hydrothermal treatment with 10M NaOH solution i.e., higher Na concentration, Na/Si =1.3. The X-ray diffraction and infrared methods are used to determine the chemical formula of cured material which is Na8Al6Si6O24(OH)2.2H2O. The CEC values do not correlate with that of SSA values, where for uncured kaolin the CEC have increased from 6.52 to 89.13 meq/100g for the cured kaolin or synthetic hydroxysodalite; on the other hand, the SSA values have decreased from 87 to 10 m 2 /g. An adsorption experiment shows that the expansion of the framework of hydroxysodalite is due to the replacement of Na + by Pb 2+ ; moreover, about 91% of Pb is effectively removed. To get optimum removal, the solution must be buffered to about pH=4.5. ــــــــــ ــ ــــــــــــــــ ـــــــــــــــ ــــــــــ
Rotary Instrument in Non-Surgical Treatment of Chronic Periodontal Disease: Clinic Randomized Study

The aim of this study is to compare the efficacy of rotary instruments vs hand scalers in non-surgical periodontal therapy, studying the variation of periodontal health indexes. Forty patients (age between 30 and 70 years) with advanced chronic periodontitis, that were recruited for the study, were divided into two groups; control group and test group. Control patients were treated with hand scalers while test group patients were treated with rotary instruments. Periodontal indexes were evaluated at baseline and after 3 months. Nonsignificant differences were found at 12 weeks follow up for all the parameters between test and control groups. Within their limits, the results indicate that different instruments can be effective in removing calculus and endotoxins. This requisite is mandatory for a proper periodontal healing. The reasons for clinicians to use diamond-coated instruments are related to a faster procedure, and the clinical evidence of a smooth root surface. The clinicians’ ability remains one of the most important variables that could affect periodontal therapy.
Characterization and preferred oviposition sites of Atherigona orientalis (Schiner) on Nigerian pepper fruits

The pepper fruitfly, Atherigona orientalis (Schin.) has been considered and accepted as a potentially serious and important pest of pepper fruits in Nigeria. Females of A. orientalis oviposited on fruits of pepper ( Capsicum species ) both in the laboratory and in the field. Oviposition commenced about 2 weeks after fruiting and increased with rainfall. Six pepper cultivars were used for this study and parts of pepper fruits utilized as oviposition sites were calyx, grooves, blossom ends and receptacles in most of the cultivars. Records of the number of eggs isolated from the aforementioned portions of the fruits were made. Oviposition response of A. orientalis females was different on the four parts of pepper fruits. Statistical analysis showed significant differences on the number of eggs deposited on the calyx, grooves, blossom ends and receptacle of the six pepper cultivars. On sites that were preferred for oviposition, most of the eggs were collected from the calyx (40-75%) followed by the grooves. Significantly lower numbers were collected from the blossom ends or receptacles depending on cultivars. Journal of Applied Sciences and Environmental Management Vol. 9 (1) 2005: 19-23
Risk Factors for Neonatal Depression in a Regional Public Hospital, Santos, Brazil, 2013

Neonatal depression leads to severe neurological sequelae with important impacts on quality of life. Most risk factors are sensitive to primary care actions, and this should be considered when developing prevention strategies. The aim was to identify the incidence and risk factors associated with neonatal depression in newborns at a Brazilian regional public hospital. A cross-sectional study of 784 live births with gestational ages of 22 weeks or more and without any major congenital anomalies was performed. Neonatal depression was defined as an Apgar score lower than seven at five minutes. Chi-square tests (p<0.05) were used for the analysis of associations, and a logistic regression model was run to control the confounding factors. The neonatal depression rate was 2.2%. Multivariate logistic regression revealed that the presence of foul-smelling amniotic fluid (OR=14.2, p=0.029), prematurity (gestational age less than 37 weeks) (OR=37.5, p<0.001) and the time of rupture of larger membranes (OR=8.7, p=0.005) were independently associated with neonatal depression. Risk conditions for perinatal infection and prematurity increase the likelihood of neonatal depression. Adequate prenatal care and guaranteed access to delivery services may reduce the occurrence of these neonatal depression risks and, consequently, may reduce infant morbidity and mortality.
LOOKING FOR RHYTHMS IN CONVERSATIONAL SPEECH

Our exploratory study looks for units of temporal structure in conversational Finnish speech. The relative significance of different hierarchical levels of rhythm was evaluated using Bayesian inference on a linear regression model based on coupled oscillators. Results suggest that stress, mora and possibly foot timing as rhythmic factors in Finnish are more relevant than traditionally assumed.
Absolute and convective instabilities of parallel propagating circularly polarized Alfvén waves: numerical results

Context. The stability of parallel propagating circularly polarized Alfven waves (pump waves) has been studied for more than four decades with the use of normal mode analysis. It is well known that the normal mode analysis does not answer the question if a pump wave looks stable or unstable in a particular reference frame. To answer this question it is necessary to find out if the instability is absolute or convective in this reference frame. Aims. We extend our previous study of absolute and convective instabilities of pump waves with small amplitude to pump waves with arbitrary amplitude. Methods. To study the absolute and convective instabilities of pump waves with arbitrary amplitude we numerically implement Brigg's method. Results. We show that the wave is absolutely unstable in a reference frame moving with the velocity U with respect to the rest plasma if U satisfies the inequality Ul Ur) we study the signalling problem. We show that spatially amplifying waves exist only when the signalling frequency is in two symmetric frequency bands, and calculate the dependences of the boundaries of these bands on U for different values of a. We also obtain the dependences of the maximum spatial amplification rate on U for different values of a. The implication of these results on the interpretation of observational data from space missions is discussed. In particular, it is shown that circularly polarized Alfven waves propagating in the solar wind are convectively unstable in a reference frame of any realistic spacecraft.
Measuring Nonlinear Granger Causality in Mean

We propose model-free measures for Granger causality in mean between random variables. Unlike the existing measures, ours are able to detect and quantify nonlinear causal effects. The new measures are based on nonparametric regressions and defined as logarithmic functions of restricted and unrestricted mean square forecast errors. They are easily and consistently estimated by replacing the unknown mean square forecast errors by their nonparametric kernel estimates. We derive the asymptotic normality of nonparametric estimator of causality measures, which we use to build tests for their statistical significance. We establish the validity of smoothed local bootstrap that one can use in finite sample settings to perform statistical tests. Monte Carlo simulations reveal that the proposed test has good finite sample size and power properties for a variety of data-generating processes and different sample sizes. Finally, the empirical importance of measuring nonlinear causality in mean is also illustrated. We quantify the degree of nonlinear predictability of equity risk premium using variance risk premium. Our empirical results show that the variance risk premium is a very good predictor of risk premium at horizons less than 6 months. We also find that there is a high degree of predictability at the 1-month horizon, that can be attributed to a nonlinear causal effect. Supplementary materials for this article are available online.
One-step extension of the Bergman shift

In this paper we answer a question of Curto and Fialkow: there exists a quadratically hyponormal weighted shift which is not positively quadratically hyponormal. Let Rbe a complex Hilbert space and let ? (R) be the algebra of bounded linear operators on R-. An operator T E ? J(H) is said to be normal if T*T = TT*, hyponormal if T*T > TT*, and subnormal if T = N ,H where N is normal on some Hilbert space IC D Rt. If T is subnormal, then T is also hyponormal. Recall that given a bounded sequence of positive numbers a: ao, a,. (called weights), the (unilateral) weighted shift W, associated with a is the operator on P2(Z+) defined by Wen := anen+1 for all n > 0 where {en}? n=0 is the canonical orthonormal basis for P2. It is straightforward to check that WOE can never be normal, and that W, is hyponormal if and only if an 0. Recall the Bram-Halmos criterion for subnormality, which states that an operator T E ? QJ(H) is subnormal if and only if S (T'x3, Tix) > 0 ij for all finite collections xoXIx ,Xk E R([1], [2, 111.1.9]). Using the Choleski algorithm for operator matrices, it is easy to see that this is equivalent to the positivity of the matrices (T*jTi TiT*i)i31 for k = 1, 2,. If we denote by [A, B] := AB BA the commutator of two operators A and B, and if we define T to be k-hyponormal whenever the k x k operator matrix Mk(T) := ([T*j, T'])i31 is positive, then the Bram-Halmos criterion can be rephrased as saying that T is subnormal if and only if T is k-hyponormal for every k > 1 ([7]). Recall ([3], [4]) that T E ? Q() is weakly k-hyponormal if Z=o siT' is hyponormal for every complex number si (0 quadratically hyponormal. In [3, Proposition 7], it is shown that there exists a quadratically hyponormal weighted shift which is not 2-hyponormal. Received by the editors October 4, 1998 and, in revised form, February 24, 1999. 1991 Mathematics Subject Classification. Primary 47B20, 47B37.