Miracle-dz/UniFAR-FTUs huggingface dataset:
Under the Shadow of Destructive Leadership: Causal Effect of Job stress on Turnover Intention of Employees in Call Centers

The purpose of the study is to analyze the dark side of leadership behaviors leading to cause job stress and their impact on turnover intention of employees as work outcome. Working under the dark shadow of destructive leaders creates stress and anxiety that effect indirectly and consequently lead employees to turnover from their job position or designation. The research study is exploratory in approach. The scales were adapted from that measure to analyze the destructive leadership exhibiting negative behaviors causing job stress, also highlights the evidence in support of the conceptual model. The sample chosen for this research are employees working in telecommunication call centers of Lahore city region in Pakistan that generated 250 respondents by survey data collection. AMOS (SEM) was employed for data analysis. The results showed that Abusive supervision and Derailed leadership behaviors contained the positive influence on Turnover intention followed by mediating effect of job stress analyzed by bootstrapping technique contained partial and full mediation in relation with turnover intention respectively. Outcome from the conducted study depicted that more knowledge and awareness about the leadership behaviors and perspective in organizations in relation to its consequences is needed to be dealt with. The study provided evidence along with a proposed model that directed the readers‟ and researchers attention towards the dark side behaviors of leader in a stress building environment such as telecommunication sector. This empirical study provides a preliminary evidence of the mediating role job stress when faced with destructive behaviors of leaders that stresses to have an impact on Turnover Intention of employees.
Bibliography of Small Deviation Probabilities

of small deviation prob-abilities.We tried also to mention the articles that contain small deviation resultsimplicitly, e.g. those on entropy numbers of operators related to stochasticprocesses.Some general theoretical works on Gaussian measures are also includedwhenever they treat inequalities widely used in small deviation theory.Also included are the relevant surveys of small deviation theory.The articles on applications of small deviation theory (e.g. to the lawsof iterated logarithm or to quantization problems) are NOT included unlessthey contain original small deviation results. This could well be a subject ofseparate bibliographic search.
Brane embeddings in sphere submanifolds

Wrapping a D(8−p)-brane on AdS2 times a submanifold of S8 − p introduces point-like defects in the context of AdS/CFT correspondence for a Dp-brane background. We classify and work out the details in all possible cases with a single-embedding angular coordinate. Brane embeddings of the temperature and beta-deformed near-horizon D3-brane backgrounds are also examined. We demonstrate the relevance of our results to holographic lattices and dimers.
The signature modulo 8 of fibre bundles

This thesis is concerned with the residues modulo 4 and 8 of the signature of a 4k-dimensional oriented geometric Poincare complex. The Z_8-valued Brown-Kervaire invariant of Z_4-valued quadratic forms is used to prove that if the signature is divisible by 4, the divisibility by 8 is detected by the Arf invariant of a Z_2-valued quadratic form. This result is applied to a fibration of geometric Poincare complexes with the total space 4k-dimensional. It is known that the signature is multiplicative modulo 4, and that there are examples of non-multiplicativity modulo 8. We identify the obstruction to multiplicativity modulo 8 with the Arf invariant of the Z_2-valued quadratic form defined on an appropriate Z_2-cohomology vector space by dividing the Z_4-valued Pontryagin square by 2. The obstruction is then shown to vanish under certain assumptions.
A Couple Approach for a Conjugate Heat Transfer Investigation of the Shape-Change Effects in a Composite Nozzle

To address the conjugate heat transfer problem in complex geometries, a coupling approach based on the local coordinate transformation is developed to evaluate the common wall temperature on non-orthogonal solid–fluid interfaces. The proposed coupling approach is validated and then used to investigate the erosion-induced shape change effects in a composite nozzle. The changes of flow field are evident in terms of the Mach number, temperature, and pressure, especially in the vicinity of erosion steps. The comparison of the wall pressure distribution indicates that the nozzle thrust performance degrades after erosion.
Record statistics in random vectors and quantum chaos

The record statistics of the quantum standard map is shown to capture the classical transition to chaos. It is shown that in the mixed phase-space regime the number of intensity records is a power law in the dimensionality of the state as opposed to the logarithmic growth for the random states. The exponent of this power law is close to 0.5 at the critical value of the chaos parameter, K ≃ 0.98 of the standard map, an exponent that is also obtained for random walks. These findings are based on the record statistics of complex, normalized random states for which we have shown that the probability of a record intensity is a Bernoulli process.
Nickel- and Fe3+-rich oxy-dravite from the Artana Mn prospect, Apuan Alps (Tuscany, Italy)

Nickel-and Fe 3+ -rich oxy-dravite was identified on a specimen collected in the Artana Mn prospect, Carrara, Apuan Alps, Tuscany, Italy. Oxy-dravite occurs as brownish-orange prismatic crystals, up to 0.3 mm in length, associated with quartz, carbonates, and hematite. Electron microprobe analysis gave (in wt. % – average of 7 spot analyses): SiO 2 35.81, TiO 2 0.41, B 2 O 3(calc) 10.38, Al 2 O 3 29.36, V 2 O 3 0.78, Cr 2 O 3 0.09, Fe 2 O 3 3.32, FeO 0.33, MgO 8.04, CaO 0.39, MnO 0.34, NiO 3.46, ZnO 0.40, Na 2 O 2.84, F 0.29, H 2 O (calc) 3.00, O = F –0.12, total 99.12. The Fe 3+ /Fe tot ratio was calculated based on optical absorp
Size determination of superconducting MgB2 powder from magnetization curve, image analysis and surface area measurements

This paper reports on a method for estimating the average grain size of superconducting nanoparticles through their magnetic properties. The use of SQUID magnetometry to determine the average MgB2 particle size was investigated and the results were compared with those of several different techniques. In particular, the data obtained from zero field cooled magnetization measurements as a function of the temperature were compared with the results obtained by the scanning electron microscopy and Brunauer–Emmett–Teller techniques. The particle magnetization was measured by a commercial SQUID magnetometer in a magnetic field (10 G) and at temperatures ranging from 5 to 50 K by dispersing the powders in a grease medium. The grain size was obtained by fitting the data taking into account the Ginzburg–Landau temperature dependence of the London penetration depth. Variations in typical modeling parameters were explored in order to gain a better picture of the average grain size and the effectiveness of various measurement techniques. We find that it is possible to use the magnetization measurements to determine the average grain size, even though an SEM analysis coupled to the image analysis allows the extraction of more information about the grain-size distribution. Furthermore, a Matlab routine has been developed in order to automatically analyze several SEM images.
“We Support Harm Reduction”: Frame Analysis of Canadian News Media Coverage of the Opioid Crisis

This study examines news media framing of the opioid crisis in Canada to advance an understanding of the dominant discourses and identify the narratives shaping public and policymakers’ opinions and preferred solutions. We conducted a content and frame analysis of 2,273 Canadian news articles published between January 2016 and December 2019. The analysis revealed that harm reduction and treatment were the preferred solutions instead of criminalization, and public health framing predominantly occurred. The overall tone emerged as empathetic and softer and, generally, the leading policy choices and opioid crisis were framed contradistinct from past drug epidemics.
Infrared absorption of dense helium and its importance in the atmospheres of cool white dwarfs

Aims: Hydrogen deficient white dwarfs are characterized by very dense, fluid-like atmospheres of complex physics and chemistry that are still poorly understood. The incomplete description of these atmospheres by the models results in serious problems with the description of spectra of these stars and subsequent difficulties in derivation of their surface parameters. Here, we address the problem of infrared (IR) opacities in the atmospheres of cool white dwarfs by direct $ab$ $initio$ simulations of IR absorption of dense helium. Methods: We applied state-of-the-art density functional theory-based quantum molecular dynamics simulations to obtain the time evolution of the induced dipole moment. The IR absorption coefficients were obtained by the Fourier transform of the dipole moment time autocorrelation function. Results: We found that a dipole moment is induced due to three- and more-body simultaneous collisions between helium atoms in highly compressed helium. This results in a significant IR absorption that is directly proportional to $\rm \rho_{\rm He}^3$, where $\rho_{\rm He}$ is the density of helium. To our knowledge, this absorption mechanism has never been measured or computed before and is therefore not accounted for in the current atmosphere models. It should dominate the other collisionally induced absorptions (CIA), arising from $\rm H-He$ and $\rm H_2-He$ pair collisions, and therefore shape the IR spectra of helium-dominated and pure helium atmosphere cool white dwarfs for $\rm He/H>10^4$. Conclusions: Our work shows that there exists an unaccounted IR absorption mechanism arising from the multi-collisions between He atoms in the helium-rich atmospheres of cool white dwarfs, including pure helium atmospheres. This absorption may be responsible for a yet unexplained frequency dependence of near- and mid- IR spectra of helium-rich stars.
Percutaneous endovenous intervention versus anticoagulation in the treatment of lower extremity deep vein thrombosis: a systematic review and meta-analysis

Background Deep vein thrombosis (DVT) of the lower extremity (LE) might lead to pulmonary embolism (PE) and post-thrombolytic syndrome (PTS). Recently, percutaneous endovenous intervention (PEVI) has been advocated for early removal of thrombus clot and restoration of venous patency. This study aims to review the safety and efficacy outcomes of PEVI versus anticoagulation in the treatment of acute LE-DVT. Methods We searched the databases of PubMed, Embase, and the Cochrane Library for randomized controlled trials (RCTs) comparing catheter-directed thrombolysis (CDT) and/or pharmacomechanical thrombectomy (PMT) versus anticoagulation for acute proximal LE-DVT, published before August 2022. Efficacy outcomes were PTS and venous patency. Safety outcomes included recurrent thromboembolism, bleeding complications, and PE. Results Overall, 1,266 patients were included from 6 RCTs. The overall risk of bias was small due to enrolled high-quality RCTs. Compared to anticoagulation, PEVI moderately reduced PTS incidence [odds ratio (OR) 0.47, 95% confidence interval (CI) 0.23–0.99], obviously inhibited moderate–to–severe PTS (OR 0.60, 95% CI: 0.40–0.88), significantly decreased PE (OR 0.16, 95% CI: 0.05–0.48), and substantially increased venous patency (OR 7.95, 95% CI: 1.00–63.16). There was no significant difference in recurrent thromboembolism between PEVI and anticoagulation (OR 0.76, 95% CI: 0.34–1.73). Bleeding events did not differ statistically between PEVI and anticoagulation (OR 1.36, 95% CI: 0.87–2.11). We conducted single-arm meta-analysis of the PEVI or anticoagulation. Pooled proportion of PTS was less after PEVI (0.295, 95% CI: 0.123–0.505) than after anticoagulation (0.459, 95% CI: 0.306–0.616). Pooled proportion of moderate-to-severe PTS was lower after PEVI (0.098, 95% CI: 0.033–0.191) than after anticoagulation (0.183, 95% CI: 0.126–0.247). Pooled proportion of PE was smaller after PEVI (0.006, 95% CI: 0.00–0.020) as compared to anticoagulation (0.075, 95% CI: 0.038–0.122). Pooled proportion of recurrent thromboembolism was similar between PEVI (0.095, 95% CI: 0.054–0.146) and anticoagulation (0.124, 95% CI: 0.061–0.206). Pooled proportion of bleeding was not different statistically between PEVI (0.026, 95% CI: 0.00–0.131) and anticoagulation (0.008, 95% CI: 0.00–0.094). Conclusions PEVI, consisting of PMT and/or CDT, is an extremely effective and feasible approach for patients with acute LE-DVT. In comparison to therapeutic anticoagulation, PEVI restores venous patency, inhibits the PTS development, reduces the PE occurrence, does not markedly increase the bleeding risk, but does not reduce recurrent thromboembolism.
The GALEX Arecibo SDSS survey – III. Evidence for the inside‐out formation of Galactic discs

We analyse a sample of galaxies with stellar masses greater than 1010 M-circle dot and with redshifts in the range 0.025 < z < 0.05 for which H i mass measurements are available from the GALEX Arecibo SDSS (Sloan Digital Sky Survey) Survey (GASS) or from the Arecibo Legacy Fast ALFA survey (ALFALFA). At a given value of M-*, our sample consists primarily of galaxies that are more H i-rich than average. We constructed a series of three control samples for comparison with these H i-rich galaxies: one sample is matched in stellar mass and redshift (C-M*), the second sample is matched in stellar mass, NUV - r colour and redshift (C-M*,C- NUV - r), and the third sample is matched in stellar mass, NUV - r colour, stellar surface mass density mu(*) and redshift. We generated self-consistent seven-band photometry (FUV, NUV, u, g, r, i, z) for all galaxies, and we used this to derive inner colours, outer colours, asymmetry and smoothness parameters. We also used standard spectral energy distribution (SED) fitting techniques to derive inner and outer specific star formation rates (sSFR). As expected, H i-rich galaxies differ strongly from galaxies of the same stellar mass that are selected without regard to H i content. The majority of these differences are attributable to the fact that galaxies with more gas are bluer and more actively star forming. In order to identify those galaxy properties that are causally connected with H i content, we compare results derived for the H i sample with those derived for galaxies matched in stellar mass, size and NUV - r colour. The only photometric property that is clearly attributable to increasing H i content is the colour gradient of the galaxy. Galaxies with larger H i fractions have bluer, more actively star-forming outer discs compared to the inner part of the galaxy. H i-rich galaxies also have larger g-band radii compared to i-band radii. Our results are consistent with the 'inside-out' picture of disc galaxy formation, which has commonly served as a basis for semi-analytic models of the formation of discs in the context of cold dark matter cosmologies. The lack of any intrinsic connection between H i fraction and galaxy asymmetry suggests that gas is accreted smoothly on to the outer disc.
Selective harmonic elimination using adaptive feed-forward compensation in single-phase stand-alone voltage source inverters

This paper presents a selective harmonic elimination technique using an adaptive feed-forward method for single-phase stand-alone voltage source inverters. The fundamental output voltage control of the inverter is carried out in Synchronous Reference Frame (SRF). Harmonic impedance parameters are estimated to perform selective harmonic compensation. The impedance parameter in stand-alone inverters refers to the equivalent series resistance of the filter inductance and the filter inductance of the LC filter used in the inverter. An adaptive feed-forward method is used for the selective harmonic elimination. The efficacy of the proposed selective harmonic elimination technique in overcoming distortion is illustrated with simulation results.
Asymptotic expansions and stability of hybrid systems with two-time scales

99 Autobiographical Statement . 100
ENVIRONMENTAL DEPENDENCE OF THE GALAXY MERGER RATE IN A ΛCDM UNIVERSE

We make use of four galaxy catalogs based on four different semi-analytical models (SAMs) implemented in the Millennium Simulation to study the environmental effects and the model dependence of the galaxy merger rate. We begin the analyses by finding that the galaxy merger rate in SAMs has a mild redshift evolution with luminosity-selected samples in the evolution-corrected B-band magnitude range,−21 ⩽ MeB ⩽ −19, consistent with the results of previous works. To study the environmental dependence of the galaxy merger rate, we adopt two estimators, the local overdensity (1 + δn), defined as the surface density from the nth nearest neighbor (n = 6 is chosen in this study), and the host halo mass Mh. We find that the galaxy merger rate Fmg shows a strong dependence on the local overdensity (1 + δn) and the dependence is similar at all redshifts. For the overdensity estimator, the merger rate Fmg is found to be about twenty times larger in the densest regions than in underdense ones in two of the four SAMs, while it is roughly four times higher in the other two. In other words, the discrepancies of the merger rate difference between the two extremes can differ by a factor of ∼5 depending on the SAMs adopted. On the other hand, for the halo mass estimator, Fmg does not monotonically increase with the host halo mass Mh but peaks in the Mh range between 1012 and 1013 h−1 M☉, which corresponds to group environments. The high merger rate in high local density regions corresponds primarily to the high merger rate in group environments. In addition, we also study the merger probability of “close pairs” identified using the projected separation and the line-of-sight velocity difference Cmg and the merger timescale Tmg; these are two important quantities for observations to convert the pair fraction Nc into the galaxy merger rate. We discover that Tmg has a weak dependence on environment and different SAMs, and is about 2 Gyr old at z ∼ 1. In contrast, Cmg depends on both environment (declining with density) and different SAMs; its environmental dependence is primarily due to the projection effect. At z ∼ 1, it is found that only ∼31% of projected close pairs will eventually merge by z = 0. We find that the projection effect is the dominant factor in accounting for the low merger probability of projected close pairs.
Physical activity counseling during and following stem cell transplantation – patients' versus advisors' perspectives

ABSTRACT Background: People receiving hematopoietic stem cell transplantation (HSCT) endure long phases of therapy and immobility, which diminish their physical activity (PA) level leading to physical deconditioning. One of the reasons is a lack of clarity on the part of those who work in oncology clinical settings of their role in assessing, advising, and referring patients to exercise. Therefore, our study investigates reported physical activity counseling behavior of health care professionals (HCPs) and the patient perspective on this topic. Methods: Physicians (N = 52), nurses (N = 52) physical therapists (N = 26), and patients receiving HSCT (N = 62) participated in a nationwide cross-sectional online-survey. Patients‘ preferred source of information concerning PA was determined. We examined HCPs self-assessed PA counseling behavior and patients‘ PA recall by assessing the use of the 5As (Ask, Advice, Agree, Assist, Arrange). Analysis of survey responses was descriptive. Univariate multinomial logistic regression examined whether sociodemographic factors and patient characteristics influence the response behavior. Results: Physicians and PA specialists were patients‘ preferred source of information regarding PA. A large discrepancy between HCPs’ perception and the degree to which HSCT patients recall advice became apparent; profound counseling steps like making referrals were less often recalled in our patient sample. Inactive patients reported to receive less basic PA counseling by physicians. Conclusion: Future research should identify the requirements to increase patients’ recall concerning PA counseling in the setting of HSCT. Important messages about PA need to be made more salient to those who are less active and less engaged.
3D maps of the local interstellar medium: searching for the imprints of past events

Inversion of interstellar (IS) gas or dust absorbing columns measured along the path to stars distributed in distance and direction allows reconstructing the distribution of interstellar matter (ISM) in three dimensions. A low resolution IS dust map based on reddening measurements towards 23,000 nearby stars is used to illustrate the potential of the more detailed maps that are expected within the next several years. The map reveals the location of the main IS cloud complexes up to distances on the order of 600 to 1200 pc depending on directions. Owing to target selection biases towards weakly reddened, brighter stars, the map is especially revealing in terms of regions devoid of IS matter. It traces the Local Bubble and its neighboring cavities, including a conspicuous, giant, ≥1000 pc long cavity in the third quadrant located beyond the so-called βMa tunnel. This cavity is bordered by the main constituents of the Gould belt, the well-known and still unexplained rotating and expanding ring of clouds and young stars, inclined by ~ 20° to the galactic plane. Comparing the dust distribution with X-ray emission maps and IS gas observations shows that the giant cavity contains a large fraction of warm, fully ionized and dust-poor gas in addition to million K, X-ray bright gas. This set of structures must reflect the main events that occurred in the past; today however even the formation of the Gould belt is still a matter of controversy. It has been suggested recently that the Cretaceus-Tertiary (KT) mass extinction is potentially due to a gamma-ray burst (GRB) that occurred in the massive globular cluster (GC) 47 Tuc during its close encounter with the Sun ~70 Myrs ago. Such a hypothesis is based on computations of the cluster and Sun trajectories and the frequency of short GRBs in GC's. Given the mass, speed and size of 47 Tuc, wherever it crossed the Galactic plane it must have produced at the crossing site significant dynamical effects on the disk stars and IS clouds, and triggered star formation. On the other hand, a burst must have produced huge ionization and radiation pressure effects on the ISM. Therefore, identifying (or not) the corresponding imprints should provide additional clues to the extinction source and the ISM history. Interestingly, first-order estimates suggest that the Gould belt dynamics and age could match the expected consequences of the cluster crossing, and that the giant ionized, dust-free cavity could be related to gas ionization and dust evaporation by an intense flux of hard radiation such as produced by a GRB. Moreover, dust-gas decoupling during the crossing and after the burst could have produce a highly inhomogeneous dust to gas ratio, potentially explaining the high variability and pattern of the D/H ratio in the gas phase. Future Gaia data should confirm or dismiss this hypothesis.