1,299 research outputs found
Torture Of Terrorists In Israel: The United Nations And The Supreme Court Of Israel Pave The Way For Human Rights To Trump Communitarianism
The General Security Service of Israel, also known as the Shin Bet, investigates individuals suspected of being involved with crimes against Israel\u27s security
From Rochel to Rose and Mendel to Max: First Name Americanization Patterns Among Twentieth-Century Jewish Immigrants to the United States
There has been a dearth of investigation into the distribution of and the alterations among Jewish given names. Whereas Jewish surnames are a popular topic of study, first names receive far less analysis. Because Jewish immigrants to the United States frequently changed their names, this thesis can serve as a guide to genealogists and other scholars seeking to trace the paths of Jewish immigrants from Europe. Data was drawn from about 1500 naturalization records from Brooklyn in order to determine the correspondences between the given names featured on passenger lists and their Americanized counterparts. More than three-quarters of surveyed immigrants were revealed to have altered their names during the naturalization process, with English-language cognates and other phonetic and orthographic similarities ostensibly informing these changes
Leaning In or Leaning On? Gender, Homophily, and Activism in Crowdfunding
Female founders seek and receive less startup capital than male entrepreneurs. One reason for this disparity is a lack of female representation among funders of startups, and a potential solution is to increase the proportion of women in decision-making roles. Both the problem and the solution implicitly rely on homophily â that women will support other women given a chance. However, a lack of clarity over when and how homophily influences individual choices makes it uncertain when better representation is actually advantageous. Using data from crowdfunding, we empirically examine whether higher proportions of female funders lead to higher success rates in capital-raising for women. We find that women outperform men, and are more likely to succeed at a crowdfunding campaign, all other things being equal. Surprisingly, this effect primarily holds for female founders proposing technological projects, a category that is largely dominated by male founders and funders. This finding stands in stark contrast to expectations concerning homophily. A laboratory experiment helps explain how this pattern might emerge and allows us to theorize about the types of choice homophily driving results. We find that a small proportion of female backers disproportionately support women-led projects in areas where women are historically underrepresented. This suggests an activist variant of choice homophily, and implies that mere representation of female funders without activism may not always be enough to overcome the barriers faced by female founders
The Strength of Weak Ties in MBA Job Search: A Within--Person Test
Whether and how social ties create value has inspired substantial research in organizational theory, sociology, and economics. Scholars generally believe that social ties impact labor market outcomes. Two explanatory mechanisms have been identified, emphasizing access to better job offers in pecuniary terms and the efficacy of non-redundant information. The evidence informing each theory, however, has been inconsistent and circumstantial. We test predictions from both models using a rich set of job search data collected from an MBA student population, including detailed information about search channels and characteristics of job offers. Importantly, we can compare offers made to the same student derived via different search channels while accounting for industry, function, and non-pecuniary characteristics. We find that contrary to conventional wisdom, search through social networks typically results in job offers with lower total compensation (-17 percent for referrals through strong ties and -16 percent for referrals via weak ties vs. formal search). However, our models also show that students are considerably more likely to accept offers derived via weak ties. They do so because they are perceived to have greater growth potential and other non-pecuniary value. On balance, our tests are consistent with Granovetterâs argument that networks provide value by facilitating access to information that is otherwise difficult to obtain, rather than providing greater pecuniary compensation
Universal dynamic scaling in chemical reactions at and away from equilibrium
Physical kinetic roughening processes are well known to exhibit universal
scaling of observables that fluctuate in space and time. Are there analogous
dynamic scaling laws that are unique to the chemical reaction mechanisms
available synthetically and occurring naturally? Here, we formulate two
complementary approaches to the dynamic scaling of stochastic fluctuations in
thermodynamic observables at and away from equilibrium. Both analytical
expressions and numerical simulations confirm our dynamic scaling ans{\"a}tze
with their associated exponents, functions, and laws. A survey of common
chemical mechanisms reveals classes that organize according to the molecularity
of the reactions involved, the nature of the reaction vessel and external
reservoirs, (non)equilibrium conditions, and the extent of autocatalysis in the
reaction network. Coupled reactions capable of chemical feedback can
transition, sometimes sharply, between these classes with the variation of
experimental parameters such as temperature. While path observables like the
dynamical activity have scaling exponents that are time-independent,
fluctuations in the entropy production and flow can have time-dependent scaling
exponents and self-averaging properties as a result of temporal correlations
that emerge during thermodynamically irreversible processes. Altogether, these
results establish dynamic universality in the nonequilibrium fluctuations of
thermodynamic observables for well-mixed chemical reactions
Hearts Ablaze: Radio Frequency Ablation as Treatment for Cardiac Arrythmia
This project analyzes several of the parameters involved in the use of radiofrequency
ablation (RFA) in the treatment of cardiac arrhythmia. Arrhythmia is an irregular beating
of the heart that can be caused by improperly timed contractions within the heart, which
can, in certain circumstances, be corrected by ablating tissue. One out of every five
hundred people is born with an arrhythmia and others acquire the condition through heart
disease. For heart attack victims, it is the most common cause of sudden death. RFA is a
common way to treat serious arrhythmia cases by cutting the short circuit through the
destruction of certain tissues. We used finite element analysis along with prototyping
software to determine the duration of treatment, with special attention to the damage
caused to surrounding tissue. We found that the optimal parameters for most effective
treatment were to administer 30V for 120 seconds ? which happens to be the standard
method of operation. This destroys the necessary part of the AV node while maintaining
the surrounding tissue at relatively normal temperatures
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MDMA (âecstasyâ) use, and its association with high risk behaviors, mental health, and other factors among gay/bisexual men in New York City
This study assesses patterns of use of methylenedioxymethamphetamine (MDMA or âecstasyâ), and the characteristics of users, in a sample of 733 men who have sex with men (MSM) in New York City. Among respondents, 13.7% reported using MDMA in the past 6 months, with mean frequency of use of 6.24 times in that period. MDMA users were found to be younger, less educated, to have had more male partners, more one night stands with men, more visits to bars or clubs and sex clubs or bathhouses, to have unprotected anal sex with a male, to be likely to have been the victim of physical domestic violence, to have more gay/bisexual friends, to have disclosed their sexual orientation to more friends, family members, and coworkers, and to have higher levels of gay community participation and affiliation. Among MDMA users, higher frequency of MDMA use was associated with being younger, having more visits to bars or clubs, more gay/bisexual friends, and having an HIV negative test result or never having been tested. MDMA users thus constitute a group at risk for sexually transmitted diseases, including HIV, and other problems. The data suggest that MDMA use is associated with being more âoutâ, which may be advantageous in helping gay men deal with harmful psychological effects of stigma, but may place individuals in settings that expose them to MDMA. These men have also presumably already been well exposed to safer sex messages within the gay community, thus raising challenges for interventions aimed at prevention, as well as opportunities (e.g. MSM and community specific interventions) that need to be further explored
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Patterns of Communication Between Gay and Lesbian Patients and Their Health Care Providers
Objectives: To determine whether gay men and lesbians disclose their sexual orientation, and other sensitive behaviors to their primary care physicians; whether they have a chance of finding a gay friendly physician; and what factors are involved. Methods: A self-report questionnaire was administered to 66 gay men and 28 lesbians at a gay and lesbian community center. Results: Less than half of participants felt their health insurance plan gave them a choice of finding a lesbian, gay, or bisexual (LGB) doctor. Those who did were more likely to be older, male, and to feel more comfortable discussing sex. Men were more likely to disclose their sexual orientation to their health care provider (HCP), to feel very comfortable discussing sex, to have a male doctor, to have a choice of finding a LGB provider through their insurance plan, and to think their provider is LGB. Those who disclosed their sexual orientation to their providers were more likely to be white males with male doctors, who felt their doctor was very gay friendly, and to have also discussed substance use, sexual behavior, and HIV with their HCP, and to feel comfortable discussing sex. Discussion: Lesbians in particular have difficulty disclosing their sexual orientation to providers, possibly due to continuing stigma, and to have less of a choice of finding a gay or lesbian provider. The data suggest that health insurance plans should provide patients with the opportunity to find gay friendly physicians, as it may facilitate communication about substance use, high risk sexual behavior and other health topics
Revisiting read wear: analysis, design, and evaluation of a footprints scrollbar
In this paper, we show that people frequently return to previously-visited regions within their documents, and that scrollbars can be enhanced to ease this task. We analysed 120 days of activity logs from Microsoft Word and Adobe Reader. Our analysis shows that region revisitation is a common activity that can be supported with relatively short recency lists. This establishes an empirical foundation for the design of an enhanced scrollbar containing scrollbar marks that helps people return to previously visited document regions. Two controlled experiments show that scrollbar marks decrease revisitation time, and that a large number of marks can be used effectively. We then design an enhanced Footprints scrollbar that supports revisitation with several features, including scrollbar marks and mark thumbnails. Two further experiments show that the Footprints scrollbar was frequently used and strongly preferred over traditional scrollbars
Erratum: Correction to: Does specialist physician supply affect pediatric asthma health outcomes? (BMC health services research (2018) 18 1 (247))
In the original publication of this article [1], the institutional author\u27s name needs to be revised from The Paediatric Chairs of Canada Mark Bernstein to The Paediatric Chairs of Canada
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