Bar-Ilan University

About: Bar-Ilan University is a education organization based out in Ramat Gan, Israel. It is known for research contribution in the topics: Population & Poison control. The organization has 12835 authors who have published 34964 publications receiving 995648 citations. The organization is also known as: Bar Ilan University & BIU.

Dependency-Based Word Embeddings

Abstract: While continuous word embeddings are gaining popularity, current models are based solely on linear contexts. In this work, we generalize the skip-gram model with negative sampling introduced by Mikolov et al. to include arbitrary contexts. In particular, we perform experiments with dependency-based contexts, and show that they produce markedly different embeddings. The dependencybased embeddings are less topical and exhibit more functional similarity than the original skip-gram embeddings.

Brain drain and human capital formation in developing countries : winners and losers

Abstract: Using new data on emigration rates by education level, we examine the impact of brain drain migration on human capital formation in developing countries. We find evidence of a positive effect of skilled migration prospects on gross human capital formation in a cross-section of 127 countries. For each country of the sample we then estimate the net effect of the brain drain using counterfactual simulations. Countries combining relatively low levels of human capital and low emigration rates are shown to experience a ‘beneficial brain drain’, and conversely, there are more losers than winners, and the former tend to lose relatively more than what the latter gain.

GW190814: Gravitational Waves from the Coalescence of a 23 Solar Mass Black Hole with a 2.6 Solar Mass Compact Object

Abstract: We report the observation of a compact binary coalescence involving a 222–243 M ⊙ black hole and a compact object with a mass of 250–267 M ⊙ (all measurements quoted at the 90% credible level) The gravitational-wave signal, GW190814, was observed during LIGO's and Virgo's third observing run on 2019 August 14 at 21:10:39 UTC and has a signal-to-noise ratio of 25 in the three-detector network The source was localized to 185 deg2 at a distance of ${241}_{-45}^{+41}$ Mpc; no electromagnetic counterpart has been confirmed to date The source has the most unequal mass ratio yet measured with gravitational waves, ${0112}_{-0009}^{+0008}$, and its secondary component is either the lightest black hole or the heaviest neutron star ever discovered in a double compact-object system The dimensionless spin of the primary black hole is tightly constrained to ≤007 Tests of general relativity reveal no measurable deviations from the theory, and its prediction of higher-multipole emission is confirmed at high confidence We estimate a merger rate density of 1–23 Gpc−3 yr−1 for the new class of binary coalescence sources that GW190814 represents Astrophysical models predict that binaries with mass ratios similar to this event can form through several channels, but are unlikely to have formed in globular clusters However, the combination of mass ratio, component masses, and the inferred merger rate for this event challenges all current models of the formation and mass distribution of compact-object binaries

The relationship between emotional intelligence and work attitudes, behavior and outcomes: An examination among senior managers

Abstract: The literature suggests that managerial skills in general, and emotional intelligence in particular, play a significant role in the success of senior managers in the workplace. This argument, despite its popularity, remains elusive. This can be attributed to the fact that although a few studies have provided evidence to support this argument, it has not received an appropriate empirical investigation. This study attempts to narrow this gap by empirically examining the extent to which senior managers with a high emotional intelligence employed in public sector organizations develop positive work attitudes, behavior and outcomes. The results indicate that emotional intelligence augments positive work attitudes, altruistic behavior and work outcomes, and moderates the effect of work‐family conflict on career commitment but not the effect on job satisfaction.

The Economics of Migrants' Remittances

Abstract: This chapter reviews the recent theoretical and empirical economic literature on migrants' remittances. It is divided between a microeconomic section on the determinants of remittances and a macroeconomic section on their growth effects. At the micro level we first present in a fully harmonized framework the various motivations to remit described so far in the literature. We show that models based on different motives share many common predictions, making it difficult to implement truly discriminative tests in the absence of sufficiently detailed data on migrants and receiving households' characteristics and on the timing of remittances. The results from selected empirical studies show that a mixture of individualistic (e.g., altruism, exchange) and familial (e.g., investment, insurance) motives explain the likelihood and size of remittances; some studies also find evidence of moral hazard on the recipients' side and of the use of inheritance prospects to monitor the migrants' behavior. At the macro level we first briefly review the standard (Keynesian) and the trade-theoretic literature on the short-run impact of remittances. We then use an endogenous growth framework to describe the growth potential of remittances and present the evidence for different growth channels. There is considerable evidence that remittances (in the form of savings repatriated by return migrants) promote access to self-employment and raise investment in small businesses, and there is also evidence that remittances contribute to raise educational attainments of children in households with migrant members. Investigation of the effects of remittances on outcomes such as children's education and health raise identification issues, however, as we explain below. Finally, the relationship between remittances and inequality appears to be non-monotonic: remittances seem to decrease economic inequality in communities with a long migration tradition but to increase inequality within communities at the beginning of the migration process. This is consistent with different theoretical arguments regarding the role of migration networks and/or the dynamics of wealth transmission between successive generations.