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.

Activation of the attachment system in adulthood: Threat-related primes increase the accessibility of mental representations of attachment figures.

Abstract: Three studies explored the effects of subliminal threat on the activation of representations of attachment figures. This accessibility was measured in a lexical decision task and a Stroop task following threat- or neutral-word primes, and was compared with the accessibility of representations of other close persons, known but not close persons, and unknown persons. Participants also reported on their attachment style. Threat primes led to increased accessibility of representations of attachment figures. This effect was specific to attachment figures and was replicated across tasks and experiments. Attachment anxiety heightened accessibility of representations of attachment figures even in neutral contexts, whereas attachment avoidance inhibited this activation when the threat prime was the word separation. These effects were not, explained by trait anxiety. The discussion focuses on the dynamics of attachment-system activation in adulthood.

In vivo dynamics of RNA polymerase II transcription

Abstract: We imaged transcription in living cells using a locus-specific reporter system, which allowed precise, single-cell kinetic measurements of promoter binding, initiation and elongation. Photobleaching of fluorescent RNA polymerase II revealed several kinetically distinct populations of the enzyme interacting with a specific gene. Photobleaching and photoactivation of fluorescent MS2 proteins used to label nascent messenger RNAs provided sensitive elongation measurements. A mechanistic kinetic model that fits our data was validated using specific inhibitors. Polymerases elongated at 4.3 kilobases min−1, much faster than previously documented, and entered a paused state for unexpectedly long times. Transcription onset was inefficient, with only 1% of polymerase-gene interactions leading to completion of an mRNA. Our systems approach, quantifying both polymerase and mRNA kinetics on a defined DNA template in vivo with high temporal resolution, opens new avenues for studying regulation of transcriptional processes in vivo.

The relationships between intangible organizational elements and organizational performance

Abstract: Despite the growing awareness of the importance of researching core strategic resources and activities, the work that has been done to date has largely taken the form of anecdotal reports and case study analysis. We have yet to see large-sample studies demonstrating how organizational elements, independently, complementarily and interactively, may or may not enhance the organization's performance. Moreover, little attention has been given to researching this topic in public sector organizations. The present study aims to bridge this gap by examining the impact of a set of independent intangible organizational elements and the interactions among them on a set of objective organizational performance measures in a sample of local government authorities in Israel. The results of a multivariate analysis indicate that organizational performance (measured by self-income ratio, collecting efficiency ratio, employment rate, and municipal development) can be well explained by six intangible organizational elements (managerial capabilities, human capital, internal auditing, labor relations, organizational culture, and perceived organizational reputation) and the interactions among them, which need to be taken into account in any cost effective development. Copyright © 2004 John Wiley & Sons, Ltd.

Remittances and Inequality

Abstract: In this paper the authors propose a framework and develop techniques for analyzing the impact of migrant remittances on the distribution of rural income by size and subsequently its impact on rural welfare. Household data are used to assign numerical coefficients to the impact of net remittances from both internal and international migrants on income inequality in 2 Mexican villages. The impact of migrant remittances on the distribution of rural income by size depends critically on the degree to which migration opportunities become diffused through the village population on the returns to human capital embodied in remittances and on the distribution of potentially remittance-enhancing skills and education across village households. Our empirical findings demonstrate that in a village where many households contain internal migrants but few have experience migrating to the U.S. remittances from Mexico-to-US migrants have an unequalizing impact on village incomes while remittances from internal migrants have a favorable effect on the village income distribution. By contrast in a village with a long historyh of sending migrants to the US and hence a more ready access to US labor markets US-to-Mexico remittances have an equalizing impact on incomes. Remittances from internal migrants in this village however embody a large human capital component and are highly correlated with household income. Hence internal migrant remittances account for a comparatively large share of inequalities in the 2nd village. The overall effect of remittances on income inequality is favorable in both villages. Migration type migration stage and interaction terms all appear to play a role in this context. The effects of small changes in remittances upon income inequality and rural welfare in the 2 villages are explored and some implications for migration and rural development policy are considered. (authors modified)