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In the IR field it is clear that the value of a system depends on the cost and benefit profiles of its users. It would seem obvious that different users would prefer different systems. In the TREC-9 filtering track, systems are evaluated by a utility measure specifying a given cost and benefit. However, in the study of decision systems it is known that, in some cases, one system may be unconditionally better than another. In this paper we employ a decision theoretic approach to find conditions under which an Information Filtering (IF) system is unconditionally superior to another for all users regardless of their cost and benefit profiles.It is well known that if two IF systems have equal precision the system with better recall will be preferred by all users. Similarly, with equal recall, better precision is universally preferred. We confirm these known results and discover an unexpected dominance relation in which a system with lower recall will be universally preferred provided its precision is sufficiently higher. 相似文献
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Tal Samuel-Azran Yair Galily Yuval Karniel Amit Lavie-Dinur 《Journal of Intercultural Communication Research》2016,45(5):391-403
To contribute to analyses of the sport-politics nexus, the study examines Jewish-Israeli attitudes toward the German soccer team and Germany. The analysis reveals that more Israelis root against the German soccer team than support it, despite the team’s impressive achievements. The analysis of attitudes toward Germany surprisingly reveals that the 18–20 age group expressed the strongest animosity towards Germany, which may indicate that Israeli government attempts to instill the Holocaust memory in the young generations perpetuates animosity between young Israelis and Germany. The study strengthens the notion that international sport games represent and extend rather than reduce international tensions. 相似文献
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Size-dependent trajectories of DNA macromolecules due to insulative dielectrophoresis in submicrometer-deep fluidic channels 总被引：1，自引：0，他引：1
Gea O. F. Parikesit Anton P. Markesteijn Oana M. Piciu Andre Bossche Jerry Westerweel Ian T. Young Yuval Garini 《Biomicrofluidics》2008,2(2)
In this paper, we demonstrate for the first time that insulative dielectrophoresis can induce size-dependent trajectories of DNA macromolecules. We experimentally use λ (48.5 kbp) and T4GT7 (165.6 kbp) DNA molecules flowing continuously around a sharp corner inside fluidic channels with a depth of 0.4 μm. Numerical simulation of the electrokinetic force distribution inside the channels is in qualitative agreement with our experimentally observed trajectories. We discuss a possible physical mechanism for the DNA polarization and dielectrophoresis inside confining channels, based on the observed dielectrophoresis responses due to different DNA sizes and various electric fields applied between the inlet and the outlet. The proposed physical mechanism indicates that further extensive investigations, both theoretically and experimentally, would be very useful to better elucidate the forces involved at DNA dielectrophoresis. When applied for size-based sorting of DNA molecules, our sorting method offers two major advantages compared to earlier attempts with insulative dielectrophoresis: Its continuous operation allows for high-throughput analysis, and it only requires electric field strengths as low as ∼10 V∕cm. 相似文献
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This paper examines whether or not media coverage is biased by the political orientation of the journalists’ country, specifically illustrated by the 2011 bid for statehood by the Palestinian Authority in the United Nations. This bid represents a symbolic step toward international recognition of a Palestinian state, an important event in the Israeli-Palestinian conflict. A quantitative analysis was conducted on 1577 news reports from American, European, and Middle Eastern outlets to determine the differences in media coverage of the Palestinian bid for statehood among the channels. The findings suggest that Israeli channels broadcasted a relatively low number of items in which the Palestinian declaration itself was the main theme. The BBC broadcasted a relatively high rate of such items, and offered balanced coverage of both Israeli and Palestinian positions, while coverage by American FOX News channel reflected a pro-Israel bias. The findings also suggest that media outlets may be biased toward specific leaders. This work builds on a growing body of research on media framing of political conflicts and the effect of the political context of a country on its media outlets’ coverage. 相似文献
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The Anne Frank Haven: A case of an alternative educational program in an integrative Kibbutz setting
Miriam Ben-Peretz Moshe Giladi Yuval Dror 《International Review of Education/Internationale Zeitschrift für Erziehungswissenschaft/Revue internationale l'éducation》1992,38(1):47-63
The essential features of the programme of the Anne Frank Haven are the complete integration of children from low SES and different cultural backgrounds with Kibbutz children; a holistic approach to education; and the involvement of the whole community in an open residential school. After 33 years, it is argued that the experiment has proved successful in absorbing city-born youth in the Kibbutz, enabling at-risk populations to reach significant academic achievements, and ensuring their continued participation in the dominant culture. The basic integration model consists of layers of concentric circles, in dynamic interaction. The innermost circle is the class, the learning community. The Kibbutz community and the foster parents form a supportive, enveloping circle, which enables students to become part of the outer community and to intervene in it. A kind of meta-environment, the inter-Kibbutz partnership and the Israeli educational system, influence the program through decision making and guidance. Some of the principles of the Haven — integration, community involvement, a year's induction for all new students, and open residential settings — could be useful for cultures and societies outside the Kibbutz. The real secret of success of an alternative educational program is the dedicated, motivated and highly trained staff.
Zusammenfassung Die Hauptpunkte des Programms des Anne-Frank-Internats sind die vollständige Integration von Kindern aus sozial schwachen Familien und unterschiedlichem kulturellen Hintergrund in die Gruppe von Kibbutz-Kindern, ein holistischer Ansatz zur Erziehung und die Beteiligung der gesamten Gemeinde an einer offenen Heimschule. Das Experiment wird von den Autoren 33 Jahre nach Beginn als erfolgreich angesehen, sowohl bei der Integration der Stadtjugend in den Kibbutz und den eröffneten Möglichkeiten für Risikogruppen, bedeutende akademische Leistungen zu vollbringen, als auch bei deren gesicherter kontinuierlicher Beteiligung an einer dominanten Kultur. Das Grundintegrationsmodell besteht aus Schichten konzentrischer Kreise in dynamischer Interaktion. Der innerste Kreis ist die Klasse, die Lerngemeinschaft. Die Kibbutz-Gesellschaft und die Pflegeeltern bilden einen unterstützenden und beschützenden Kreis, der es den Schülern ermöglicht, Teil der äußeren Gemeinde zu werden und sich dort zu engagieren. Eine Art Meta-Umgebung, die Partnerschaft zwischen den Kibbutzim und das israelische Schulsystem beeinflussen das Programm, indem Entscheidungen getroffen und Richtlinien gegeben werden. Einige der Prinzipien des Internats wie Integration, Beteiligung der Gemeinden, einjährige Einführungszeit für alle neuen Schüler und offene Wohnbedingungen, könnten für Kulturen und Gesellschaften außerhalb des Kibbutz ebenfalls von Interesse sein. Das wahre Geheimnis des Erfolgs eines alternativen Schulprogramms ist jedoch engagiertes, motiviertes und hochqualifiziertes Personal.
Résumé L'insertion complète des enfants de bas statut socio-économique et de milieux culturels différents aux enfants des kibboutz, une approche holistique de l'enseignement et la participation de l'ensemble de la communauté à une école résidentielle ouverte constituent les caractéristiques essentielles du programme Anne Frank Haven. On est d'avis, 33 ans plus tard, que cette expérience a réussi à intégrer les jeunes citadins dans les kibboutz, à donner un niveau de scolarité satisfaisant aux populations à risque et à assurer leur participation continue à la culture dominante. Le modèle d'intégration de base est constitué de couches de cercles concentriques en interaction dynamique. Le cercle le plus au centre représente la classe, la communauté qui apprend. La collectivité du kibboutz et les parents nourriciers forment un cercle de soutien enveloppant qui permet aux élèves de prendre part à la vie de la communauté extérieure et d'intervenir au sein de celle-ci. Une sorte de méta-environnement, l'association entre les kibboutz et le système éducatif israélien exercent une influence sur le programme par leurs décisions et les conseils qu'ils prodiguent. Quelques-uns des principes du programme Haven, tels que l'intégration, la participation de la communauté, une année d'initiation pour tous les nouveaux élèves et les structures d'internat ouvert, pourraient servir aux cultures et sociétés à l'extérieur des kibboutz. Le véritable secret du succès d'un programme éducatif non conventionnel repose sur un personnel dévoué, motivé et parfaitement formé.相似文献
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Yuval Karniel 《Government Information Quarterly》2005,22(4):626-643
Freedom of expression has long been one of Israel's most basic tenets. Since the beginning of the “Al Aksa Intifada” in October 2000, many bodies in Israel have attempted to limit this freedom when expressed by Israeli Arab Palestinians on the grounds that such expression is harmful to the public and forms an incitement for terror. The Israeli Supreme Court, despite heavy opposition by the public, was nevertheless able in most instances to uphold and protect this liberty. Despite public outcry, the Court performed a delicate balancing act, balancing Israel's need to protect itself from its enemies against the basic freedom of expression to which all of its citizens are entitled. The mechanics of this judicial balancing act by a country that is no stranger to war and terrorism can serve as a useful guide for other countries struggling to deal with similar assaults to their democratic way of life. 相似文献
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AbstractThis study traces the founding process of Eastern Mediterranean International School (EMIS) by analysing the motivations and interests of different stakeholders involved in the establishment process. In this novel initiative students from Palestine, Israel, and other countries study within the Israeli public school system towards an International Baccalaureate (IB) diploma. Drawing on semi-structured interviews with founders, educators, Ministry of Education officials, a parents’ survey, and content analysis of related documents, the authors show how the school was established and approved despite the supposedly contradicting hegemonic discourse of the official Israeli policy. They conclude by suggesting some implications for scholars and policy-makers. 相似文献
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Yuval Dror 《History of education》2013,42(3):299-315
This article explores the relationship between philanthropy and education in the context of eighteenth‐century Protestant Dissent. More particularly, it examines the intersection between philanthropy, fund‐raising and educational administration as they evolved within the institutional lifecycle of the collegiate Dissenting academies. It argues that individual academies experienced at least three of four life stages, each of which had its own unique challenges. All academies went through the first two of these stages, namely ‘foundation’ and ‘maintenance’. Whether or not an academy experienced the last two stages – ‘transition’ and ‘dissolution’ – depended on factors such as the financial strength of an academy and the reliability of its principal supporters. To illustrate these stages and their philanthropic subtexts, the article focuses on three institutional ‘traditions’, those of the Northampton Academy and its successors, the Warrington Academy, and Trevecca College and its successor Cheshunt College. 相似文献
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