88 research outputs found

    Hebrew Creativity in British Reform

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    Rashi, \u3cem\u3eThe \u3c/em\u3e Jewish Exegete

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    Until modern times virtually every Jewish child imbibed the teachings, the narrative, and law of the Pentateuch with the assistance of Rashi\u27s commentary, or, as the Yiddish expression has it, Humash mit Rashi. Rashi\u27s Bible and Talmud commentaries are still unmatched for conciseness, clarity, and the sure touch of the born educator. Though of medieval French provenance, Rashi\u27s expositions were adopted by Jews everywhere, Ashkenazic, Sephardic, and Oriental, for nearly a thousand years. Nor was his influence restricted to Jews. Within a century after his death, his commentary was taken up by a learned Franciscan monk whose discourses were to lend shape to Martin Luther\u27s rendition of the Hebrew Bible into German, thus indirectly affecting the King James Version

    Mystical Influences in Jewish Liturgical Renewal

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    The Power of Conversation (Translated by Eric L. Friedland)

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    To fulfill a long-held dream of a return to Zion, Shmuel Hugo Bergman (1883-1975) moved from his native Prague in 1920 to make his home in Eretz Yisrael. A loyal yet trailblazing intellectual and spiritual heir to Nicholas of Cusa, Bernhard Bolzano, Hermann Cohen, Martin Buber and Sri Aurobindo — and devout Jew — Bergman not only all but singlehandedly created the famed library of the Hebrew University in Jerusalem, but served as docent, professor, and rector at the Jerusalem university, translated (with the help of his disciple-collaborator and philosopher in his own right, Nathan Rotenstreich) the works of Kant from German into Hebrew, and was a founding member of B\u27rit Shalom [ covenant of peace from Numbers 25:121, to foster Arab-Jewish understanding. Bergman\u27s preoccupation with clearing the barriers between Jews and Arabs was of a piece with his conviction that the impassable divisions between religion and science, philosophy and religion, Judaism and Christianity, and western and eastern religions, particularism and universalism need not be

    Polynomial diffeomorphisms of C^2, IV: The measure of maximal entropy and laminar currents

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    This paper concerns the dynamics of polynomial automorphisms of C2{\bf C}^2. One can associate to such an automorphism two currents μ±\mu^\pm and the equilibrium measure μ=μ+∧μ−\mu=\mu^+\wedge\mu^-. In this paper we study some geometric and dynamical properties of these objects. First, we characterize μ\mu as the unique measure of maximal entropy. Then we show that the measure μ\mu has a local product structure and that the currents μ±\mu^\pm have a laminar structure. This allows us to deduce information about periodic points and heteroclinic intersections. For example, we prove that the support of μ\mu coincides with the closure of the set of saddle points. The methods used combine the pluripotential theory with the theory of non-uniformly hyperbolic dynamical systems

    The Long-Baseline Neutrino Experiment: Exploring Fundamental Symmetries of the Universe

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    The preponderance of matter over antimatter in the early Universe, the dynamics of the supernova bursts that produced the heavy elements necessary for life and whether protons eventually decay --- these mysteries at the forefront of particle physics and astrophysics are key to understanding the early evolution of our Universe, its current state and its eventual fate. The Long-Baseline Neutrino Experiment (LBNE) represents an extensively developed plan for a world-class experiment dedicated to addressing these questions. LBNE is conceived around three central components: (1) a new, high-intensity neutrino source generated from a megawatt-class proton accelerator at Fermi National Accelerator Laboratory, (2) a near neutrino detector just downstream of the source, and (3) a massive liquid argon time-projection chamber deployed as a far detector deep underground at the Sanford Underground Research Facility. This facility, located at the site of the former Homestake Mine in Lead, South Dakota, is approximately 1,300 km from the neutrino source at Fermilab -- a distance (baseline) that delivers optimal sensitivity to neutrino charge-parity symmetry violation and mass ordering effects. This ambitious yet cost-effective design incorporates scalability and flexibility and can accommodate a variety of upgrades and contributions. With its exceptional combination of experimental configuration, technical capabilities, and potential for transformative discoveries, LBNE promises to be a vital facility for the field of particle physics worldwide, providing physicists from around the globe with opportunities to collaborate in a twenty to thirty year program of exciting science. In this document we provide a comprehensive overview of LBNE's scientific objectives, its place in the landscape of neutrino physics worldwide, the technologies it will incorporate and the capabilities it will possess.Comment: Major update of previous version. This is the reference document for LBNE science program and current status. Chapters 1, 3, and 9 provide a comprehensive overview of LBNE's scientific objectives, its place in the landscape of neutrino physics worldwide, the technologies it will incorporate and the capabilities it will possess. 288 pages, 116 figure

    Induction and processing of the radiation-induced gamma-H2AX signal and Its link to the underlying pattern of DSB: A combined experimental and modelling study

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    We present here an analysis of DSB induction and processing after irradiation with X-rays in an extended dose range based on the use of the γH2AX assay. The study was performed by quantitative flow cytometry measurements, since the use of foci counting would result in reasonable accuracy only in a limited dose range of a few Gy. The experimental data are complemented by a theoretical analysis based on the GLOBLE model. In fact, original aim of the study was to test GLOBLE predictions against new experimental data, in order to contribute to the validation of the model. Specifically, the γH2AX signal kinetics has been investigated up to 24 h after exposure to increasing photon doses between 2 and 500 Gy. The prolonged persistence of the signal at high doses strongly suggests dose dependence in DSB processing after low LET irradiation. Importantly, in the framework of our modelling analysis, this is related to a gradually increased fraction of DSB clustering at the micrometre scale. The parallel study of γH2AX dose response curves shows the onset of a pronounced saturation in two cell lines at a dose of about 20 Gy. This dose is much lower than expected according to model predictions based on the values usually adopted for the DSB induction yield (≈ 30 DSB/Gy) and for the γH2AX foci extension of approximately 2 Mbp around the DSB. We show and discuss how theoretical predictions and experimental findings can be in principle reconciled by combining an increased DSB induction yield with the assumption of a larger genomic extension for the single phosphorylated regions. As an alternative approach, we also considered in our model the possibility of a 3D spreading-mechanism of the H2AX phosphorylation around the induced DSB, and applied it to the analysis of both the aspects considered. Our results are found to be supportive for the basic assumptions on which GLOBLE is built. Apart from giving new insights into the H2AX phosphorylation process, experiments performed at high doses are of relevance in the context of radiation therapy, where hypo-fractionated schemes become increasingly popular
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