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Search Results: 1 - 10 of 234 matches for " Rafi Nets-Zehngut "
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Internal and External Collective Memories of Conflicts: Israel and the 1948 Palestinian Exodus
Rafi Nets-Zehngut
International Journal of Conflict and Violence , 2012,
Abstract: The general category of collective memory of conflicts includes several kinds of memories (e.g., official, autobiographical, and historical – of scholars) that the literature typically discusses as a unified phenomenon. This contribution demonstrates that each of these kinds of memory comprises two types of submemories: internal (how the holders of a sub-memory actually view the history of a conflict) and external (how they publicly express their views of that history). Empirically, the research is based on an examination of Israeli official, autobiographical, and historical memories from 1949 to 2004 concerning the causes of the 1948 Palestinian exodus. Methodologically, it uses content analysis of documents and interviews with key Israeli figures. Theoretically, the article proves the existence of these two sub-memories, discusses their different characteristics and implications, addresses their reciprocal relations, and explores selfcensorship and external censorship as the causes for the differences between them.
Students’ Self-Diagnosis Using Worked-Out Examples  [PDF]
Rafi’ Safadi, Edit Yerushalmi
Creative Education (CE) , 2013, DOI: 10.4236/ce.2013.43031
Abstract: Students in physics classrooms are often asked to review their solution to a problem by comparing it to a textbook or worked-out example. Learning in this setting depends to a great extent on students' inclination forself-repair; i.e., their willingness and ability to recognize and resolve conflicts between their mental model and the scientifically acceptable model. This study examined the extent to which self-repair can be identified and assessed in students’written responses on a self-diagnosis task in which they are given time and credit for identifying and explaining the nature of their mistakes assisted by a worked-out example. Analysis of 180 10th and 11th grade physics students in private and public schools in the Arab sector in Israel showed that although most students were able to identify differences between their solution and the worked-out example that significantly affected the way they approached the problem many did not acknowledge the underlying conflicts between their interpretation and a scientifically acceptable interpretation of the concepts and principles involved. Rather, students related to the worked-out example as an ultimate template and simply considered their deviations from it as mistakes. These findings were consistent in all the classes and across all the teachers, irrespective of grade level or school affiliation. However, younger students in some classrooms also perceived the task as a communication channel to provide feedback to their teachers on their learning and the instructional materials used in the task. Taken together, the findings suggest that instructional intervention is needed to develop students’ ability to self-diagnose their work so that they can learn from this type of task.

Characteristics of “Exemplary Teachers” and Possible Factors Affecting Their Realization According to the Perception of Principals from the Arab Sector in Israel  [PDF]
Salman Ilaiyan, Rafi’ Safadi
Creative Education (CE) , 2016, DOI: 10.4236/ce.2016.71012
Abstract: This study examines the characteristics of exemplary teachers and the factors that are liable to inhibit/encourage their realization according to the perception of principals from the Arab sector in Israel. Ten principals were interviewed. They considered leading educational initiatives, coping with discipline problems, subject matter mastery, and employing a variety of teaching methods to be the exemplary teacher’s outstanding characteristics. Characteristics associated with ongoing professional development and relationships with colleagues, pupils, and parents were deemed less prominent. The principals did not manifest a unified stance vis-à-vis whether their schools’ physical-pedagogical infrastructure encouraged or inhibited the realization of the characteristics of exemplary teaching. It was recommended that in parallel to broadening didactic and disciplinary knowledge, it would be worthwhile fostering the ability of the teachers, in particular pre-service teachers and beginning teachers, to lead educational initiatives and establish interpersonal relationships, and giving them tools for coping with discipline problems.
The flecnode polynomial: a central object in incidence geometry
Nets Hawk Katz
Mathematics , 2014,
Abstract: We give a brief exposition of the proof of the Cayley-Salmon theorem and its recent role in incidence geometry. Even when we don't use the properties of ruled surfaces explicitly, the regime in which we have interesting results in point-line incidence problems often coincides with the regime in which lines are organized into ruled surfaces.
New bounds on Kakeya problems
Nets Katz,Terence Tao
Mathematics , 2001,
Abstract: We establish new estimates on the Minkowski and Hausdorff dimensions of Besicovitch sets and obtain new bounds on the Kakeya maximal operator.
Recent progress on the Kakeya conjecture
Nets Katz,Terence Tao
Mathematics , 2000,
Abstract: The purpose of this article is to survey the developments on the Kakeya problem in recent years, concentrating on the period after the excellent 1999 survey of Wolff, and including some recent work by the authors. We will focus on the standard Kakeya problem for line segments and not discuss other important variants (such as Kakeya estimates for circles, light rays, or $k$-planes).
The Grone Merris Conjecture and a quadratic eigenvalue problem
Nets Hawk Katz
Mathematics , 2005,
Abstract: We verify the Grone Merris conjecture for a class of graphs. We do this by curve sketching in the sense of first year calculus. That is, we do it by homotopy methods.
On Sums, Products, and the multidimensional Falconer problem
Nets Hawk Katz
Mathematics , 2006,
Abstract: A set in d dimensional Euclidean space with d larger than 2 having Hausdorff dimension at least d/2 must have distance set with Hausdorff dimension strictly greater than 1/2.
On the CNF-complexity of bipartite graphs containing no $K_{2,2}$'s
Nets Hawk Katz
Computer Science , 2012,
Abstract: By a probabilistic construction, we find a bipartite graph having average degree $d$ which can be expressed as a conjunctive normal form using $C \log d$ clauses. This contradicts research problem 1.33 of Jukna.
Feasibility and Implications of a Monetary Union in Southeast Asia
Rafi Chaudhury
Michigan Journal of Business , 2009,
Abstract: This study explores the readiness of seven ASEAN countries to adopt a common monetary policy and introduce a common currency. The suitability of the region as an Optimum Currency Area is estimated using an OCA Index developed in Bayoumi & Eichengreen (1997). This study finds that while the countries studied appear to be prepared to adopt a common monetary policy, there are still many opportunities to exploit policy independence in order to improve infrastructure and competitiveness prior to further integration.
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