WorldWideScience

Sample records for beth israel deaconess

  1. La cerámica Khirbet Kerak (Beth Yerah, Israel y la etnicidad: un enfoque alternativo

    Directory of Open Access Journals (Sweden)

    Bernardo Gandulla

    2007-07-01

    Full Text Available

    La cerámica Khirbet Kerak, descubierta en el sudoeste del Mar de Galilea en 1930 por W. F. Albright, ha sido desde entonces motivo de muchas controversias. Las razones de las discusiones en torno a este estilo radican  en su carácter aparentemente intrusivo en Palestina, entre el 2800-2400  a.C., puesto que esta cerámica es típica en la Cultura Transcaucásica Temprana o Cultura Kura-Araxes y en Siria Septentrional, durante el Bronce Antiguo, siendo especialmente abundante en la etapa final de este período. Sin embargo los estudios realizados en Beth Shan (Chazan y McGovern, ver n. 17, muestran que los materiales Khirbet Kerak fueron de producción local lo que parece descartar su carácter intrusivo. Por tanto, desde nuestro punto de vista, el “fenómeno Khirbet Kerak” constituye así un hito de singular importancia en la conformación de las tradiciones culturales de Canaan a partir de un sustrato etnocultural común hurrita, en un eje de interacción cultural norte a sur desde la región del Lago Van, que habrá de proyectarse de distintas formas en la macrorregión alcanzando hasta los antiguos hebreos, en cuanto cananeos, como se reflejan en instituciones del derecho privado presentes en las narraciones del Génesis.

    Palabras clave: Canaán - Bronce Antiguo - Beth Yerah - Khirbet Kerak - Hurritas
    - Hebreos

  2. Health-hazard-evaluation determination report No. HHE-78-6-503, Cumberland Outpatient Department of Beth Israel Hospital, Brooklyn, New York

    Energy Technology Data Exchange (ETDEWEB)

    Messite, J.; Fannick, N.L.

    1978-07-01

    In response to a request from a representative of the nursing staff, an investigation was made of possible methadone exposures at the Cumberland Outpatient Department of Beth Israel Hospital, Brooklyn, New York, a methadone-dispensing clinic. The distribution room measured 12 feet in all dimensions and was enclosed on three sides. Methadone had previously been received in prepackaged doses, but more recently the nurses had to count the contents of each 100-count bottle of methadone hydrochloride and separate tablets or diskets into individual doses. Nurses involved in dispensing the medication reported intermittent sleepiness, itching of the face, nose, and eyes, and dryness of skin on the hands and face. Urine studies indicated no detectable methadone or methadone metabolites at a limit of 1 microgram per milliliter. There is no evidence of methadone absorption; however, they recommend that skin contact with the tablets and diskets be kept to a minimum by use of instruments for moving the pills on the counting tray, frequent clean up of dust, and periodic hand washing.

  3. Medications (for IBS)

    Medline Plus

    Full Text Available ... Anthony J. Lembo, MD, Instructor of Medicine, Harvard Medical School; Division of Gastroenterology, Beth Israel Deaconess Medical Center, Boston, MA. Last modified on February 23, ...

  4. The Bethe ansatz

    Science.gov (United States)

    Levkovich-Maslyuk, Fedor

    2016-08-01

    We give a pedagogical introduction to the Bethe ansatz techniques in integrable QFTs and spin chains. We first discuss and motivate the general framework of asymptotic Bethe ansatz for the spectrum of integrable QFTs in large volume, based on the exact S-matrix. Then we illustrate this method in several concrete theories. The first case we study is the SU(2) chiral Gross-Neveu model. We derive the Bethe equations via algebraic Bethe ansatz, solving in the process the Heisenberg XXX spin chain. We discuss this famous spin chain model in some detail, covering in particular the coordinate Bethe ansatz, some properties of Bethe states, and the classical scaling limit leading to finite-gap equations. Then we proceed to the more involved SU(3) chiral Gross-Neveu model and derive the Bethe equations using nested algebraic Bethe ansatz to solve the arising SU(3) spin chain. Finally we show how a method similar to the Bethe ansatz works in a completely different setting, namely for the 1D oscillator in quantum mechanics.

  5. Cummings/Ju - Harvard; Emory | Division of Cancer Prevention

    Science.gov (United States)

    Principal Investigator: Richard D Cummings, PhDInstitution: Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA Principal Investigator: Tongzhong Ju, MD, PhDInstitution: Emory University, Atlanta, GA |

  6. Special issue: Hans Bethe

    CERN Multimedia

    Gottfried, Kurt

    2005-01-01

    "There are a handful of people who soar, whose accompalishments are so off-scale as to nearly defy belief. Hans Bethe (2 July 1906 - 6 March 2005) was of that caliber. As just one measure of his stature, imagine the task of copying his published opus by hand, for that is how he wrote most of it" (2 pages)

  7. The Bethe Wavefunction

    NARCIS (Netherlands)

    Gaudin, M.; Caux, J.-S.

    2014-01-01

    Michel Gaudin's book La fonction d'onde de Bethe is a uniquely influential masterpiece on exactly solvable models of quantum mechanics and statistical physics. Available in English for the first time, this translation brings his classic work to a new generation of graduate students and researchers i

  8. The Bethe wavefunction

    CERN Document Server

    Gaudin, Michel

    2014-01-01

    Michel Gaudin's book La fonction d'onde de Bethe is a uniquely influential masterpiece on exactly solvable models of quantum mechanics and statistical physics. Available in English for the first time, this translation brings his classic work to a new generation of graduate students and researchers in physics. It presents a mixture of mathematics interspersed with powerful physical intuition, retaining the author's unmistakably honest tone. The book begins with the Heisenberg spin chain, starting from the coordinate Bethe Ansatz and culminating in a discussion of its thermodynamic properties. Delta-interacting bosons (the Lieb-Liniger model) are then explored, and extended to exactly solvable models associated to a reflection group. After discussing the continuum limit of spin chains, the book covers six- and eight-vertex models in extensive detail, from their lattice definition to their thermodynamics. Later chapters examine advanced topics such as multi-component delta-interacting systems, Gaudin magnets and...

  9. Hans Bethe's early life

    Science.gov (United States)

    Bernstein, Jeremy

    2012-10-01

    In 1937, two years after he moved to the US to escape Nazi persecution, the physicist Hans Bethe sent a letter to his mother in Germany. In it, he wrote, "I think I am about the leading theoretician in America. [Eugene] Wigner is certainly better and [Robert] Oppenheimer and [Edward] Teller probably just as good. But I do more and talk more and that counts too."

  10. Lectures on the Bethe Ansatz

    CERN Document Server

    Levkovich-Maslyuk, Fedor

    2016-01-01

    We give a pedagogical introduction to the Bethe ansatz techniques in integrable QFTs and spin chains. We first discuss and motivate the general framework of asymptotic Bethe ansatz for the spectrum of integrable QFTs in large volume, based on the exact S-matrix. Then we illustrate this method in several concrete theories. The first case we study is the SU(2) chiral Gross-Neveu model. We derive the Bethe equations via algebraic Bethe ansatz, solving in the process the Heisenberg XXX spin chain. We discuss this famous spin chain model in some detail, covering in particular the coordinate Bethe ansatz, some properties of Bethe states, and the classical scaling limit leading to finite-gap equations. Then we proceed to the more involved SU(3) chiral Gross-Neveu model and derive the Bethe equations using nested algebraic Bethe ansatz to solve the arising SU(3) spin chain. Finally we show how a method similar to the Bethe ansatz works in a completley different setting, namely for the 1d oscillator in quantum mechani...

  11. An integrated model for inner-city health-care delivery: the Deaconess Center.

    Science.gov (United States)

    James, D M

    1998-01-01

    Under the auspices of the Buffalo General Hospital and the faculty of medicine of the State University of New York at Buffalo, a comprehensive delivery system for primary care has been established in a local inner-city neighborhood. At the Deaconess Family Medicine Center, located within an inner-city location of Buffalo, New York, several divisions have been integrated to provide comprehensive patient-oriented primary care. These divisions include a primary care clinic, an urgent care clinic, a substance abuse clinic, and a community pediatrics clinic. Professional services are provided by attending physicians and residents. The horizontal integration of these four divisions is in turn vertically integrated with the tertiary care teaching hospital inpatient and obstetrical services, providing a continuum of patient care. The horizontal integration serves as an entry point for patients to enter the hospital's health-care system, while the vertical integration capability serves to capture any specialized referrals or inpatient needs. This article discusses the structure of the center, with special reference to service integration, service delivery, and patient capture; medical education; and the place of integrated units in the strategic plan of a tertiary care hospital.

  12. Bethe ansatz and Isomonodromic deformations

    CERN Document Server

    Talalaev, D

    2008-01-01

    We study symmetries of the Bethe equations for the Gaudin model appeared naturally in the framework of the geometric Langlands correspondence under the name of Hecke operators and under the name of Schlesinger transformations in the theory of isomonodromic deformations, and particularly in the theory of Painlev\\'e transcendents.

  13. Hans Bethe and the Global Energy Problems

    CERN Document Server

    Ioffe, B L

    2005-01-01

    Bethe's view-point on the global energy problems is presented. Bethe claimed that the nuclear power is a necessity in future. Nuclear energetic must be based on breeder reactors. Bethe considered the non-proliferation of nuclear weapons as the main problem of long-range future of nuclear energetics. The solution of this problem he saw in heavy water moderated thermal breeders, using uranium-233, uranium-238 and thorium as a fuel.

  14. Algebraic Bethe ansatz for a singular solution

    CERN Document Server

    Nepomechie, Rafael I

    2013-01-01

    The Bethe equations for the spin-1/2 Heisenberg chain with N sites have a "two-string" solution i/2, -i/2 that is singular: both the corresponding energy and algebraic Bethe ansatz vector are divergent. We show that this solution must be carefully regularized in order to obtain the correct eigenvector. This regularization involves a parameter that can be determined using a generalization of the Bethe equations. It follows that this solution must be excluded for odd N.

  15. Bethe vectors for XXX-spin chain

    Science.gov (United States)

    Burdík, Čestmír; Fuksa, Jan; Isaev, Alexei

    2014-11-01

    The paper deals with algebraic Bethe ansatz for XXX-spin chain. Generators of Yang-Baxter algebra are expressed in basis of free fermions and used to calculate explicit form of Bethe vectors. Their relation to N-component models is used to prove conjecture about their form in general. Some remarks on inhomogeneous XXX-spin chain are included.

  16. Bethe's quantum numbers and rigged configurations

    Directory of Open Access Journals (Sweden)

    Anatol N. Kirillov

    2016-04-01

    Full Text Available We propose a method to determine the quantum numbers, which we call the rigged configurations, for the solutions to the Bethe ansatz equations for the spin-1/2 isotropic Heisenberg model under the periodic boundary condition. Our method is based on the observation that the sums of Bethe's quantum numbers within each string behave particularly nicely. We confirm our procedure for all solutions for length 12 chain (totally 923 solutions.

  17. Counting independent sets using the Bethe approximation

    Energy Technology Data Exchange (ETDEWEB)

    Chertkov, Michael [Los Alamos National Laboratory; Chandrasekaran, V [MIT; Gamarmik, D [MIT; Shah, D [MIT; Sin, J [MIT

    2009-01-01

    The authors consider the problem of counting the number of independent sets or the partition function of a hard-core model in a graph. The problem in general is computationally hard (P hard). They study the quality of the approximation provided by the Bethe free energy. Belief propagation (BP) is a message-passing algorithm can be used to compute fixed points of the Bethe approximation; however, BP is not always guarantee to converge. As the first result, they propose a simple message-passing algorithm that converges to a BP fixed pont for any grapy. They find that their algorithm converges within a multiplicative error 1 + {var_epsilon} of a fixed point in {Omicron}(n{sup 2}E{sup -4} log{sup 3}(nE{sup -1})) iterations for any bounded degree graph of n nodes. In a nutshell, the algorithm can be thought of as a modification of BP with 'time-varying' message-passing. Next, they analyze the resulting error to the number of independent sets provided by such a fixed point of the Bethe approximation. Using the recently developed loop calculus approach by Vhertkov and Chernyak, they establish that for any bounded graph with large enough girth, the error is {Omicron}(n{sup -{gamma}}) for some {gamma} > 0. As an application, they find that for random 3-regular graph, Bethe approximation of log-partition function (log of the number of independent sets) is within o(1) of corret log-partition - this is quite surprising as previous physics-based predictions were expecting an error of o(n). In sum, their results provide a systematic way to find Bethe fixed points for any graph quickly and allow for estimating error in Bethe approximation using novel combinatorial techniques.

  18. Obituary: Hans Albrecht Bethe, 1906-2005

    NARCIS (Netherlands)

    Wijers, R.

    2007-01-01

    One of the unquestioned giants of physics and astrophysics, Hans Bethe, died on 6 March 2005, at the venerable age of 98, in his home town of Ithaca, New York. Seven decades of contributing to research and a Nobel Prize for his work on stellar hydrogen burning make a listing of his honors superfluou

  19. Twisting singular solutions of Bethe's equations

    CERN Document Server

    Nepomechie, Rafael I

    2014-01-01

    The Bethe equations for the periodic XXX and XXZ spin chains admit singular solutions, for which the corresponding eigenvalues and eigenvectors are ill-defined. We use a twist regularization to derive conditions for such singular solutions to be physical, in which case they correspond to genuine eigenvalues and eigenvectors of the Hamiltonian.

  20. Poverty in Israel

    OpenAIRE

    Michel, Dirk; Schertges, Claudia

    2007-01-01

    The paper deals with poverty within Israel. Against the background of the history of pre-state Israel and the developments after the establishment of the State of Israel in 1948 the historical roots of Israeli poverty are analyzed. Thus the ‘socialist’-Zionist project, ethnic exclusion, religious and intra-Jewish ethnic lines of conflict as well as the Bedouins, Druzes and Israeli Arabs as ‘specific’ Israeli citizen are discussed. Despite the economic growth in Israel since 2003 ‘the major...

  1. Obituary: Hans Albrecht Bethe, 1906-2005

    Science.gov (United States)

    Wijers, Ralph

    2007-12-01

    One of the unquestioned giants of physics and astrophysics, Hans Bethe, died on 6 March 2005, at the venerable age of 98, in his home town of Ithaca, New York. Seven decades of contributing to research and a Nobel Prize for his work on stellar hydrogen burning make a listing of his honors superfluous (besides being impossible in this space). Bethe was born in Strassburg, in then German Alsass Lothringen, on 2 July 1906. His father, Albrecht Julius Bethe (1872-1954), taught physiology at the University, and his mother, Anna Kuhn (1876-1966), was a musician and writer. Both his grandfathers were physicians. He spent his youth in Strassburg, Kiel, and Frankfurt, and some time in sanatoria due to tuberculosis. Hans's first scientific paper, at age 18, was with his father and a colleague, on dialysis. His education and early career in Germany brought him into contact with many top stars in the quantum revolution. Starting in Frankfurt in chemistry, Bethe soon switched to physics, taught there by Walter Gerlach and Karl Meissner, among others. In 1926, he successfully applied to join Arnold Sommerfeld's group in Munich, where he met one of his later long-term collaborators, Rudolf Peierls. Bethe considered his entry into physics to have come at an ideal time, with the new ideas of wave mechanics being developed and discussed right there; it was certainly also at an ideal place. His doctoral thesis was on the theory of electron diffraction by crystals, following the experimental work by Clinton Davisson and Lester Germer and the work on X-ray diffraction by Max von Laue and Paul Ewald. The newly minted doctor went from there briefly to Frankfurt and then to Ewald in Stuttgart, where he felt at home academically and personally. In 1939, Bethe would marry Ewald's daughter Rose. Not much later, though, Sommerfeld recalled him to Munich, where Sommerfeld created a Privatdozent position for him. There he worked out the solution for a linear chain of coupled spins by what we

  2. Bethe logarithm and QED shift for lithium.

    Science.gov (United States)

    Yan, Zong-Chao; Drake, G W F

    2003-09-12

    A novel finite basis set method is used to calculate the Bethe logarithm for the ground 2 (2)S(1/2) and excited 3 (2)S(1/2) states of lithium. The basis sets are constructed to span a huge range of distance scales within a single calculation, leading to well-converged values for the Bethe logarithm. The results are used to calculate an accurate value for the complete quantum electrodynamic energy shift up to order alpha(3) Ry. The calculated 3 (2)S(1/2)-2 (2)S(1/2) transition frequency for 7Li is 27 206.092 6(9) cm(-1), and the ionization potential for the 2 (2)S(1/2) state is 43 487.158 3(6) cm(-1). The 7Li-6Li isotope shift is also considered, and all the results compared with experiment.

  3. Introduction to the thermodynamic Bethe ansatz

    CERN Document Server

    van Tongeren, Stijn J

    2016-01-01

    We give a pedagogical introduction to the thermodynamic Bethe ansatz, a method that allows us to describe the thermodynamics of integrable models whose spectrum is found via the (asymptotic) Bethe ansatz. We set the stage by deriving the Fermi-Dirac distribution and associated free energy of free electrons, and then in a similar though technically more complicated fashion treat the thermodynamics of integrable models, focusing on the one dimensional Bose gas with delta function interaction as a clean pedagogical example, secondly the XXX spin chain as an elementary (lattice) model with prototypical complicating features in the form of bound states, and finally the SU(2) chiral Gross-Neveu model as a field theory example. Throughout this discussion we emphasize the central role of particle and hole densities, whose relations determine the model under consideration. We then discuss tricks that allow us to use the same methods to describe the exact spectra of integrable field theories on a circle, in particular ...

  4. Quantum Computing via The Bethe Ansatz

    OpenAIRE

    Zhang, Yong,

    2011-01-01

    We recognize quantum circuit model of computation as factorisable scattering model and propose that a quantum computer is associated with a quantum many-body system solved by the Bethe ansatz. As an typical example to support our perspectives on quantum computation, we study quantum computing in one-dimensional nonrelativistic system with delta-function interaction, where the two-body scattering matrix satisfies the factorisation equation (the quantum Yang--Baxter equation) and acts as a para...

  5. Bethe Ansatz in Stringy Sigma Models

    OpenAIRE

    Klose, T.; Zarembo, K.

    2006-01-01

    We compute the exact S-matrix and give the Bethe ansatz solution for three sigma-models which arise as subsectors of string theory in AdS(5)xS(5): Landau-Lifshitz model (non-relativistic sigma-model on S(2)), Alday-Arutyunov-Frolov model (fermionic sigma-model with su(1|1) symmetry), and Faddeev-Reshetikhin model (string sigma-model on S(3)xR).

  6. Jewish Fundamentalism in Israel.

    Science.gov (United States)

    1986-11-01

    settling in the Land of Israel, working its soil, and developing its potential for habitation by larger numbers of Jews, the Zionist movement was...approximately 30% of Israeli Jewish youth); Participants in and graduates from a dozen Yeshivot Hesder; Teenage members of Bnei Akiva (the NRP’s...is what Jews must rely on in the face of Arab and gentile opposition to its habitation and rule by Jews. The covenant between the people of Israel

  7. Introduction to the thermodynamic Bethe ansatz

    Science.gov (United States)

    van Tongeren, Stijn J.

    2016-08-01

    We give a pedagogical introduction to the thermodynamic Bethe ansatz, a method that allows us to describe the thermodynamics of integrable models whose spectrum is found via the (asymptotic) Bethe ansatz. We set the stage by deriving the Fermi-Dirac distribution and associated free energy of free electrons, and then in a similar though technically more complicated fashion treat the thermodynamics of integrable models, focusing first on the one-dimensional Bose gas with delta function interaction as a clean pedagogical example, secondly the XXX spin chain as an elementary (lattice) model with prototypical complicating features in the form of bound states, and finally the {SU}(2) chiral Gross-Neveu model as a field theory example. Throughout this discussion we emphasize the central role of particle and hole densities, whose relations determine the model under consideration. We then discuss tricks that allow us to use the same methods to describe the exact spectra of integrable field theories on a circle, in particular the chiral Gross-Neveu model. We moreover discuss the simplification of TBA equations to Y systems, including the transition back to integral equations given sufficient analyticity data, in simple examples.

  8. Overlaps of Partial Neel States and Bethe States

    CERN Document Server

    Foda, O

    2015-01-01

    Partial Neel states are generalizations of the ordinary Neel (classical anti-ferromagnet) state that can have arbitrary integer spin. We study overlaps of these states with Bethe states. We first identify this overlap with a partial version of reflecting-boundary domain-wall partition function, and then derive various determinant representations for off-shell and on-shell Bethe states.

  9. Continuous representations of scalar products of Bethe vectors

    CERN Document Server

    Galleas, W

    2016-01-01

    We present families of single determinantal representations of on-shell scalar products of Bethe vectors. Our families of representations are parameterized by a continuous complex variable which can be fixed at convenience. Here we consider Bethe vectors in two versions of the six-vertex model: the case with boundary twists and the case with open boundaries.

  10. Coordinate Bethe ansatz for the string S-matrix

    Energy Technology Data Exchange (ETDEWEB)

    Leeuw, M de [Institute for Theoretical Physics and Spinoza Institute, Utrecht University, 3508 TD Utrecht (Netherlands)

    2007-11-30

    We use the coordinate Bethe ansatz approach to derive the nested Bethe equations corresponding to the recently found S-matrix for strings in AdS{sub 5} x S{sup 5}, compatible with centrally extended su(2 vertical bar 2) symmetry.

  11. Centenary Birth Anniversary of E. W. Beth (1908-1964)

    Science.gov (United States)

    Bagni, Giorgio T.

    2008-01-01

    Evert Willem Beth (1908-1964) was a Dutch logician, mathematician and philosopher, whose work mainly concerned the foundations of mathematics. Beth was among the founders of the Commission Internationale pour l'Etude et l'Amelioration de l'Enseignement des Mathematiques and was a member of the Central Committee of the International Commission on…

  12. Obituary: Beth Brown (1969-2008)

    Science.gov (United States)

    Bregman, Joel

    2011-12-01

    The astronomical community lost one of its most buoyant and caring individuals when Beth Brown died, unexpectedly, at the age of 39 from a pulmonary embolism. Beth Brown was born in Roanoke, Virginia where she developed a deep interest in astronomy, science, and science fiction (Star Trek). After graduating as the valedictorian of William Fleming High School's Class of 1987, she attended Howard University, where she graduated summa cum laude in 1991 with a bachelor's degree in astrophysics. Following a year in the graduate physics program at Howard, she entered the graduate program in the Department of Astronomy at the University of Michigan, the first African-American woman in the program. She received her PhD in 1998, working with X-ray observations of elliptical galaxies from the Röntgen Satellite (ROSAT; Joel Bregman was her advisor). She compiled and analyzed the first large complete sample of such galaxies with ROSAT and her papers in this area made an impact in the field. Following her PhD, Beth Brown held a National Academy of Science & National Research Council Postdoctoral Research Fellowship at NASA's Goddard Space Flight Center. Subsequently, she became a civil servant at the National Space Science Data Center at GSFC, where she was involved in data archival activities as well as education and outreach, a continuing passion in her life. In 2006, Brown became an Astrophysics Fellow at GSFC, during which time she worked as a visiting Assistant Professor at Howard University, where she taught and worked with students and faculty to improve the teaching observatory. At the time of her death, she was eagerly looking forward to a new position at GSFC as the Assistant Director for Science Communications and Higher Education. Beth Brown was a joyous individual who loved to work with people, especially in educating them about our remarkable field. Her warmth and openness was a great aid in making accessible explanations of otherwise daunting astrophysical

  13. Cyclotomic Gaudin Models: Construction and Bethe Ansatz

    Science.gov (United States)

    Vicedo, Benoît; Young, Charles

    2016-05-01

    To any finite-dimensional simple Lie algebra g and automorphism {σ: gto g we associate a cyclotomic Gaudin algebra. This is a large commutative subalgebra of {U(g)^{⊗ N}} generated by a hierarchy of cyclotomic Gaudin Hamiltonians. It reduces to the Gaudin algebra in the special case {σ =id}. We go on to construct joint eigenvectors and their eigenvalues for this hierarchy of cyclotomic Gaudin Hamiltonians, in the case of a spin chain consisting of a tensor product of Verma modules. To do so we generalize an approach to the Bethe ansatz due to Feigin, Frenkel and Reshetikhin involving vertex algebras and the Wakimoto construction. As part of this construction, we make use of a theorem concerning cyclotomic coinvariants, which we prove in a companion paper. As a byproduct, we obtain a cyclotomic generalization of the Schechtman-Varchenko formula for the weight function.

  14. Quelques applications de l'Ansatz de Bethe (Some applications of the Bethe Ansatz)

    CERN Document Server

    Zinn-Justin, P

    1998-01-01

    The Bethe Ansatz is a method that is used in quantum integrable models in order to solve them explicitly. This method is explained here in a general framework, which applies to 1D quantum spin chains, 2D statistical lattice models (vertex models) and relativistic field theories with 1 space dimension and 1 time dimension. The connection with quantum groups is expounded. Several applications are then presented. Finite size corrections are calculated via two methods: The Non-Linear Integral Equations, which are applied to the study of the states of the affine Toda model with imaginary coupling, and their interpolation between the high energy (ultra-violet) and low energy (infra-red) regions; and the Thermodynamic Bethe Ansatz Equations, along with the associated Fusion Equations, which are used to determine the thermodynamic properties of the generalized multi-channel Kondo model. The latter is then studied in more detail, still using the Bethe Ansatz and quantum groups, so as to characterize the spectrum of th...

  15. Two-body bound states & the Bethe-Salpeter equation

    Energy Technology Data Exchange (ETDEWEB)

    Pichowsky, M. [Argonne National Lab., IL (United States); Kennedy, M. [Univ. of New Hampshire, Durham, NH (United States). Physics Dept.; Strickland, M. [Duke Univ., Durham, NC (United States)

    1995-01-18

    The Bethe-Salpeter formalism is used to study two-body bound states within a scalar theory: two scalar fields interacting via the exchange of a third massless scalar field. The Schwinger-Dyson equation is derived using functional and diagrammatic techniques, and the Bethe-Salpeter equation is obtained in an analogous way, showing it to be a two-particle generalization of the Schwinger-Dyson equation. The authors also present a numerical method for solving the Bethe-Salpeter equation without three-dimensional reduction. The ground and first excited state masses and wavefunctions are computed within the ladder approximation and space-like form factors are calculated.

  16. Two-loop Bethe-logarithm correction in hydrogenlike atoms.

    Science.gov (United States)

    Pachucki, Krzysztof; Jentschura, Ulrich D

    2003-09-12

    We calculate the two-loop Bethe logarithm correction to atomic energy levels in hydrogenlike systems. The two-loop Bethe logarithm is a low-energy quantum electrodynamic (QED) effect involving multiple summations over virtual excited atomic states. Although much smaller in absolute magnitude than the well-known one-loop Bethe logarithm, the two-loop analog is quite significant when compared to the current experimental accuracy of the 1S-2S transition: It contributes -8.19 and -0.84 kHz for the 1S and the 2S state, respectively. The two-loop Bethe logarithm has been the largest unknown correction to the hydrogen Lamb shift to date. Together with the ongoing measurement of the proton charge radius at the Paul Scherrer Institute, its calculation will bring theoretical and experimental accuracy for the Lamb shift in atomic hydrogen to the level of 10(-7).

  17. Model of pair aggregation on the Bethe lattice

    DEFF Research Database (Denmark)

    Baillet, M.V.-P.; Pacheco, A.F.; Gómez, J.B.

    1997-01-01

    We extend a recent model of aggregation of pairs of particles, analyzing the case in which the supporting framework is a Bethe lattice. The model exhibits a critical behavior of the percolation theory type....

  18. Norm of Bethe Wave Function as a Determinant

    CERN Document Server

    Korepin, Vladimir E

    2009-01-01

    This is a historical note. Bethe Ansatz solvable models are considered, for example XXZ Heisenberg anti-ferromagnet and Bose gas with delta interaction. Periodic boundary conditions lead to Bethe equation. The square of the norm of Bethe wave function is equal to a determinant of linearized system of Bethe equations (determinant of matrix of second derivatives of Yang action). The proof was first published in Communications in Mathematical Physics, vol 86, page 391 in l982. Also domain wall boundary conditions for 6 vertex model were discovered in the same paper [see Appendix D]. These play an important role for algebraic combinatorics: alternating sign matrices, domino tiling and plane partition. Many publications are devoted to six vertex model with domain wall boundary conditions.

  19. Solving Bethe-Salpeter scattering state equation in Minkowski space

    CERN Document Server

    Carbonell, J

    2014-01-01

    We present a method to directly solving the Bethe-Salpeter equation in Minkowski space, both for bound and scattering states. It is based on a proper treatment of the singularities which appear in the kernel, propagators and Bethe-Salpeter amplitude itself. The off-mass shell scattering amplitude for spinless particles interacting by a one boson exchange is computed for the first time.

  20. Nuclear forces the making of the physicist Hans Bethe

    CERN Document Server

    Schweber, Silvan S

    2012-01-01

    On the fiftieth anniversary of Hiroshima, Nobel-winning physicist Hans Bethe called on his fellow scientists to stop working on weapons of mass destruction. What drove Bethe, the head of Theoretical Physics at Los Alamos during the Manhattan Project, to renounce the weaponry he had once worked so tirelessly to create? That is one of the questions answered by "Nuclear Forces", a riveting biography of Bethe's early life and development as both a scientist and a man of principle. As Silvan Schweber follows Bethe from his childhood in Germany, to laboratories in Italy and England, and on to Cornell University, he shows how these differing environments were reflected in the kind of physics Bethe produced. Many of the young quantum physicists in the 1930s, including Bethe, had Jewish roots, and Schweber considers how Liberal Judaism in Germany helps explain their remarkable contributions. A portrait emerges of a man whose strategy for staying on top of a deeply hierarchical field was to tackle only those problems h...

  1. On The Ladder Bethe-Salpeter Equation

    CERN Document Server

    Efimov, G V

    2003-01-01

    The Bethe-Salpeter (BS) equation in the ladder approximation is studied within a scalar theory: two scalar fields (constituents) with mass $m$ interacting via an exchange of a scalar field (tieon) with mass $\\mu$. The BS equation is written in the form of an integral equation in the configuration Euclidean $x$-space with the kernel which for stable bound states $M<2m$ is a self-adjoint positive operator. The solution of the BS equation is formulated as a variational problem. The nonrelativistic limit of the BS equation is considered. The role of so-called abnormal states is discussed. The analytical form of test functions for which the accuracy of calculations of bound state masses is better than 1% (the comparison with available numerical calculations is done) is determined. These test functions make it possible to calculate analytically vertex functions describing the interaction of bound states with constituents. As a by-product a simple solution of the Wick-Cutkosky model for the case of massless bound...

  2. Diabetic microvascular complications: possible targets for improved macrovascular outcomes

    OpenAIRE

    Weinrauch, Larry

    2010-01-01

    John A D’Elia1, George Bayliss1,2, Bijan Roshan1, Manish Maski1, Ray E Gleason1, Larry A Weinrauch11Renal Unit, Joslin Diabetes Center, Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA; 2Department of Medicine, Rhode Island Hospital, Alpert School of Medicine, Brown University, Providence, RI, USAAbstract: The results of recent outcome trials challenge hypotheses that tight control of both glycohemoglobin and blood pressure dimini...

  3. Fusions of Breast Carcinoma and Dendritic Cells as a Vaccine for the Treatment of Metastatic Breast Cancer. Addendum

    Science.gov (United States)

    2009-07-01

    Dendritic Cells as a Vaccine for the Treatment of Metatastic Breast Cancer PRINCIPAL INVESTIGATOR: Donald W. Kufe, M.D...COVERED 1 Jul 2008 – 30 Jun 2009 4. TITLE AND SUBTITLE 5a. CONTRACT NUMBER Fusions of Breast Carcinoma and Dendritic Cells as a Vaccine for the...David Avigan, MD, Beth Israel Deaconess Medical Center, Boston, MA, in Support of Proposal, "Fusions of Breast Carcinoma and Dendritic Cells as a

  4. Clostridium difficile outbreaks: Prevention and treatment strategies

    OpenAIRE

    2012-01-01

    Fernando J Martinez,1 Daniel A Leffler,2 Ciaran P Kelly21Division of Gastroenterology, Department of Medicine, University of Miami, Miller School of Medicine, Miami, FL, USA; 2Department of Gastroenterology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USAAbstract: The incidence and severity of Clostridium difficile infection (CDI) have increased dramatically over the past decade. Its treatment, however, has largely remained the same with the exception of oral van...

  5. Armodafinil-induced wakefulness in animals with ventrolateral preoptic lesions

    OpenAIRE

    Vetrivelan R; Saper CB; Fuller PM

    2014-01-01

    Ramalingam Vetrivelan, Clifford B Saper, Patrick M Fuller Department of Neurology, Harvard Medical School and Beth Israel Deaconess Medical Center, Boston, MA, USA Abstract: Armodafinil is the pharmacologically active R-enantiomer of modafinil, a widely prescribed wake-promoting agent used to treat several sleep-related disorders including excessive daytime sleepiness associated with narcolepsy, shift work sleep disorder, and obstructive sleep apnea/hypopnea syndrome. Remarkably, however, th...

  6. Double Cortex Syndrome

    OpenAIRE

    1999-01-01

    The incidence of mutations in the X-linked gene doublecortin in patients with “double cortex” syndrome (DC; also called subcortical band heterotopia or laminar heterotopia) and familial DC with lissencephaly was investigated in a cohort of 8 pedigrees and 47 sporadic patients with DC examined at the Division of Neurogenics, Beth Israel Deaconess Medical Center, Boston, and multiple centers in the US and abroad.

  7. Influence of Snail on Integrin Beta 1 Expression/Activity in Breast Carcinoma

    Science.gov (United States)

    2008-09-01

    Spring Harbor Press. 11 8. Bachelder RE and Letvin NL. 1995. Characterization of CD4-specific Fabs from a recombinant Fab library generated from...Cancer Biology and Angiogenesis, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215 2 Unitat de Biologia Cellular i...of GSK-3 inhibition can be generalized to other epithelial cells, as demonstrated by the significantly re- duced levels of E-cadherin protein in HaCaT

  8. Influence of Snail on Integrin Beta l Expression/Activity in Breast Carcinoma

    Science.gov (United States)

    2008-09-01

    Spring Harbor Press. 11 8. Bachelder RE and Letvin NL. 1995. Characterization of CD4-specific Fabs from a recombinant Fab library generated from...Cancer Biology and Angiogenesis, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215 2 Unitat de Biologia Cellular i...of GSK-3 inhibition can be generalized to other epithelial cells, as demonstrated by the significantly re- duced levels of E-cadherin protein in HaCaT

  9. APOL1 Oligomerization as the Key Mediator of Kidney Disease in African Americans

    Science.gov (United States)

    2015-10-01

    inhibitors. 3: Compare the propensity of wild- type and risk mutant APOL1 to form toxic oligomers in model systems and human kidney biopsies . We will...INVESTIGATOR: Dr. Martin Pollak CONTRACTING ORGANIZATION: Beth Israel Deaconess Medical Center Boston, MA 02215 REPORT DATE: October 2015 TYPE OF REPORT...number. PLEASE DO NOT RETURN YOUR FORM TO THE ABOVE ADDRESS. 1. REPORT DATE October 2015 2. REPORT TYPE Annual Report 3. DATES COVERED 30 Sep 2014

  10. Israel: Health System Review.

    Science.gov (United States)

    Rosen, Bruce; Waitzberg, Ruth; Merkur, Sherry

    2015-01-01

    Israel is a small country, with just over 8 million citizens and a modern market-based economy with a comparable level of gross domestic product per capita to the average in the European Union. It has had universal health coverage since the introduction of a progressively financed statutory health insurance system in 1995. All citizens can choose from among four competing, non-profit-making health plans, which are charged with providing a broad package of benefits stipulated by the government. Overall, the Israeli health care system is quite efficient. Health status levels are comparable to those of other developed countries, even though Israel spends a relatively low proportion of its gross domestic product on health care (less than 8%) and nearly 40% of that is privately financed. Factors contributing to system efficiency include regulated competition among the health plans, tight regulatory controls on the supply of hospital beds, accessible and professional primary care and a well-developed system of electronic health records. Israeli health care has also demonstrated a remarkable capacity to innovate, improve, establish goals, be tenacious and prioritize. Israel is in the midst of numerous health reform efforts. The health insurance benefits package has been extended to include mental health care and dental care for children. A multipronged effort is underway to reduce health inequalities. National projects have been launched to measure and improve the quality of hospital care and reduce surgical waiting times, along with greater public dissemination of comparative performance data. Major steps are also being taken to address projected shortages of physicians and nurses. One of the major challenges currently facing Israeli health care is the growing reliance on private financing, with potentially deleterious effects for equity and efficiency. Efforts are currently underway to expand public financing, improve the efficiency of the public system and constrain

  11. Integrable achiral D5-brane reflections and asymptotic Bethe equations

    CERN Document Server

    Correa, Diego H; Young, Charles A S

    2011-01-01

    We study the reflection of magnons from a D5-brane in the framework of the AdS/CFT correspondence. We consider two possible orientations of the D5-brane with respect to the reference vacuum state, namely vacuum states aligned along "vertical" and "horizontal" directions. We show that the reflections are of the achiral type. We also show that the reflection matrices satisfy the boundary Yang-Baxter equations for both orientations. In the horizontal case the reflection matrix can be interpreted in terms of a bulk S-matrix, S(p, -p), and factorizability of boundary scattering therefore follows from that of bulk scattering. Finally, we solve the nested coordinate Bethe ansatz for the system in the vertical case to find the Bethe equations. In the horizontal case, the Bethe equations are of the same form as those for the closed string.

  12. Improved Numerical Generalization of Bethe- Weizsacker Mass Formula

    CERN Document Server

    Mavrodiev, Strachimir

    2016-01-01

    In this paper is presented explicit improved numerical generalization of Bethe-Weizsacker mass formulae which describes the values of measured 2654 nuclear mass in AME2012 nuclear database with accuracy less than 2.2 MeV, starting from the number of protons Z=1 and number of neutrons N=1. In the obtained generazation of the Bethe-Weizsacker formula the influence of magic numbers and boundaries of their influence between them is defined for nine proton (2, 8, 14, 20, 28, 50, 82, 108, 124) and ten neutron (2, 8, 14, 20, 28, 50, 82, 124, 152, 202) magic numbers.

  13. Evaluations of energy coefficients of Bethe-Weizsacker mass formula

    CERN Document Server

    Basu, D N

    2004-01-01

    A mass fit to the liquid drop model is presented. Coefficients of the volume, surface, coulomb, asymmetry and pairing energy terms of the semiemirical Bethe-Weizsacker mass formula have been determined by furnishing best fit to the observed mass excesses. Different sets of the weighting parameters for liquid drop model Bethe-Weizsacker mass formula have been obtained from minimizations of chisquare and mean square deviation. The recent exerimental and estimated mass excesses from Audi-Wapstra-Thibault atomic mass table have been used for the least square fitting procedure. Some implications of the modifications of parameters have been discussed.

  14. Quantum Waveguide Properties of Bethe Lattices with a Ring

    Institute of Scientific and Technical Information of China (English)

    LIN Zhi-Ping; HOU Zhi-Lin; LIU You-Yan

    2008-01-01

    Based on waveguide theory we investigate electronic transport properties of Bethe lattices with a mesoscopic ring threaded by a magnetic flux. The generalized eigen-function method (GEM) is used to calculate the transmission and reflection coefficients up to the fifth generation of Bethe lattices. The relationships among the transmission coefficient T, magnetic flux φ and wave vector kl axe investigated in detail. The numerical results are shown by the three-dimensional plots and contour maps. Some resonant-transmission features and the symmetry of the transmission coefficient T to flux φ are observed and discussed.

  15. The Bethe ansatz for AdS5 × S5 bound states

    NARCIS (Netherlands)

    de Leeuw, M.

    2009-01-01

    We reformulate the nested coordinate Bethe ansatz in terms of coproducts of Yangian symmetry generators. This allows us to derive the nested Bethe equations for arbitrary bound state string S-matrices. The bound state number dependence in the Bethe equations appears through the parameters x± and the

  16. Algebraic Bethe Ansatz for O(2N) sigma models with integrable diagonal boundaries

    CERN Document Server

    Gombor, Tamas

    2015-01-01

    The finite volume problem of O(2N) sigma models with integrable diagonal boundaries on a finite interval is investigated. The double row transfer matrix is diagonalized by Algebraic Bethe Ansatz. The boundary Bethe Yang equations for the particle rapidities and the accompanying Bethe Ansatz equations are derived.

  17. Pionierin der Religionspsychologie: Marianne Beth (1890-1984)

    NARCIS (Netherlands)

    Belzen, J.A.

    2010-01-01

    This article deals with the contributions to the psychology of religion made by Dr. Marianne Beth (1890-1984), an almost totally forgotten pioneer of the psychology of religion. The article especially contextualizes her initiative to turn "unbelief" into a topic for research in psychology of religio

  18. Scalar product of Bethe vectors from functional equations

    OpenAIRE

    Galleas, W.

    2012-01-01

    In this work the scalar product of Bethe vectors for the six-vertex model is studied by means of functional equations. The scalar products are shown to obey a system of functional equations originated from the Yang-Baxter algebra and its solution is given as a multiple contour integral.

  19. Boundary Quantum Knizhnik-Zamolodchikov Equations and Bethe Vectors

    NARCIS (Netherlands)

    Reshetikhin, N.; Stokman, J.; Vlaar, B.

    2015-01-01

    Solutions to boundary quantum Knizhnik-Zamolodchikov equations are constructed as bilateral sums involving "off-shell" Bethe vectors in case the reflection matrix is diagonal and only the 2-dimensional representation of Uq(slˆ2) is involved. We also consider their rational and classical degeneration

  20. Mean values of local operators in highly excited Bethe states

    NARCIS (Netherlands)

    Pozsgay, B.

    2011-01-01

    We consider expectation values of local operators in (continuum) integrable models in a situation when the mean value is calculated in a single Bethe state with a large number of particles. We develop a form factor expansion for the thermodynamic limit of the mean value, which applies whenever the d

  1. Bethe ansatz solution of triangular trimers on the triangular lattice

    NARCIS (Netherlands)

    Verberkmoes, A.; Nienhuis, B.

    2001-01-01

    Recently, a model consisting of triangular trimers covering the triangular lattice was introduced and its exact free energy given. In this paper we present the complete calculation leading to this exact result. The solution involves a coordinate Bethe ansatz with two kinds of particles. It is simila

  2. Twisting singular solutions of Betheʼs equations

    Science.gov (United States)

    Nepomechie, Rafael I.; Wang, Chunguang

    2014-12-01

    The Bethe equations for the periodic XXX and XXZ spin chains admit singular solutions, for which the corresponding eigenvalues and eigenvectors are ill-defined. We use a twist regularization to derive conditions for such singular solutions to be physical, in which case they correspond to genuine eigenvalues and eigenvectors of the Hamiltonian.

  3. Algebraic Bethe ansatz for the XXX chain with triangular boundaries and Gaudin model

    Energy Technology Data Exchange (ETDEWEB)

    Cirilo António, N., E-mail: nantonio@math.ist.utl.pt [Centro de Análise Funcional e Aplicações, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa (Portugal); Manojlović, N., E-mail: nmanoj@ualg.pt [Grupo de Física Matemática da Universidade de Lisboa, Av. Prof. Gama Pinto 2, PT-1649-003 Lisboa (Portugal); Departamento de Matemática, F.C.T., Universidade do Algarve, Campus de Gambelas, PT-8005-139 Faro (Portugal); Salom, I., E-mail: isalom@ipb.ac.rs [Institute of Physics, University of Belgrade, P.O. Box 57, 11080 Belgrade (Serbia)

    2014-12-15

    We implement fully the algebraic Bethe ansatz for the XXX Heisenberg spin chain in the case when both boundary matrices can be brought to the upper-triangular form. We define the Bethe vectors which yield the strikingly simple expression for the off shell action of the transfer matrix, deriving the spectrum and the relevant Bethe equations. We explore further these results by obtaining the off shell action of the generating function of the Gaudin Hamiltonians on the corresponding Bethe vectors through the so-called quasi-classical limit. Moreover, this action is as simple as it could possibly be, yielding the spectrum and the Bethe equations of the Gaudin model.

  4. Algebraic Bethe ansatz for the XXX chain with triangular boundaries and Gaudin model

    Science.gov (United States)

    Cirilo António, N.; Manojlović, N.; Salom, I.

    2014-12-01

    We implement fully the algebraic Bethe ansatz for the XXX Heisenberg spin chain in the case when both boundary matrices can be brought to the upper-triangular form. We define the Bethe vectors which yield the strikingly simple expression for the off shell action of the transfer matrix, deriving the spectrum and the relevant Bethe equations. We explore further these results by obtaining the off shell action of the generating function of the Gaudin Hamiltonians on the corresponding Bethe vectors through the so-called quasi-classical limit. Moreover, this action is as simple as it could possibly be, yielding the spectrum and the Bethe equations of the Gaudin model.

  5. Scalar products of Bethe vectors in models with $\\mathfrak{gl}(2|1)$ symmetry 2. Determinant representation

    CERN Document Server

    Hutsalyuk, A; Pakuliak, S Z; Ragoucy, E; Slavnov, N A

    2016-01-01

    We study integrable models with $\\mathfrak{gl}(2|1)$ symmetry and solvable by nested algebraic Bethe ansatz. We obtain a determinant representation for scalar products of Bethe vectors, when the Bethe parameters obey some relations weaker than the Bethe equations. This representation allows us to find the norms of on-shell Bethe vectors and obtain determinant formulas for form factors of the diagonal entries of the monodromy matrix.

  6. Scalar products of Bethe vectors in models with \\mathfrak{g}\\mathfrak{l}(2|1) symmetry 2. Determinant representation

    Science.gov (United States)

    Hutsalyuk, A.; Liashyk, A.; Pakuliak, S. Z.; Ragoucy, E.; Slavnov, N. A.

    2017-01-01

    We study integrable models with gl(2|1) symmetry and solvable by nested algebraic Bethe ansatz. We obtain a determinant representation for scalar products of Bethe vectors, when the Bethe parameters obey some relations weaker than the Bethe equations. This representation allows us to find the norms of on-shell Bethe vectors and obtain determinant formulas for form factors of the diagonal entries of the monodromy matrix. Dedicated to the memory of Petr Petrovich Kulish.

  7. Bethe-Salpeter bound-state structure in Minkowski space

    CERN Document Server

    Gutierrez, C; Frederico, T; Salmè, G; Viviani, M; Tomio, Lauro

    2016-01-01

    The quantitative investigation of the scalar Bethe-Salpeter equation in Minkowski space, within the ladder-approximation framework, is extended to include the excited states. This study has been carried out for an interacting system composed by two massive bosons exchanging a massive scalar, by adopting (i) the Nakanishi integral representation of the Bethe-Salpeter amplitude, and (ii) the formally exact projection onto the null plane. Our analysis, on one hand, confirms the reliability of the method already applied to the ground state and, on the other one, extends the investigation from the valence distribution in momentum space to the corresponding quantity in the impact-parameter space, pointing out some relevant features, like (i) the equivalence between Minkowski and Euclidean transverse-momentum amplitudes, and (ii) the leading exponential fall-off of the valence wave function in the impact-parameter space.

  8. [ISRAEL NEONATOLOGY: PRESENT AND FUTURE].

    Science.gov (United States)

    Dollberg, Shaul

    2016-01-01

    The practice of neonatology in Israel debuted in the 1970s as local enterprises by individual hospitals that needed to provide sick and preterm newly born infants with up-to-date and effective care. Descriptions of research and advances in humane and gentle treatment during neonatal care for preterm infants and their families, as well as prevention of neonatal infections, follow-up of preterm infants and care of full-term infants are presented in this issue. The Israel National Very Low Birth Weight (VLBW) Infant database provides an excellent source of knowledge, which has led to multiple scientific publications. Recent international comparisons of the outcome of preterm VLBW infants, made possible by this unique database in Israel, has provided the neonatal community and the Ministry of Health with insights as to the differences in prognosis between Israel and other countries, especially among extremely low birth weight infants. At the border of viability, mortality in Israelis significantly higher than that reported in other countries and proactive steps undertaken to examine these differences and prompt correctional action should be pursued. The Israel Ministry of Health started positive initiatives and should ensure that their steps are implemented at the preterm infant's bedside.

  9. Instantaneous Bethe-Salpeter Kernel for the Lightest Pseudoscalar Mesons

    CERN Document Server

    Lucha, Wolfgang

    2016-01-01

    Starting from a phenomenologically successful, numerical solution of the Dyson-Schwinger equation that governs the quark propagator, we reconstruct in detail the interaction kernel that has to enter the instantaneous approximation to the Bethe-Salpeter equation to allow us to describe the lightest pseudoscalar mesons as quark-antiquark bound states exhibiting the (almost) masslessness necessary for them to be interpretable as the (pseudo) Goldstone bosons related to the spontaneous chiral symmetry breaking of quantum chromodynamics.

  10. How algebraic Bethe ansatz works for integrable model

    CERN Document Server

    Fadeev, L

    1996-01-01

    I study the technique of Algebraic Bethe Ansatz for solving integrable models and show how it works in detail on the simplest example of spin 1/2 XXX magnetic chain. Several other models are treated more superficially, only the specific details are given. Several parameters, appearing in these generalizations: spin s, anisotropy parameter \\ga, shift \\om in the alternating chain, allow to include in our treatment most known examples of soliton theory, including relativistic model of Quantum Field Theory.

  11. Reflection Amplitudes of ADE Toda Theories and Thermodynamic Bethe Ansatz

    CERN Document Server

    Ahn, C; Kim, C; Rim, C; Yang, B; Ahn, Changrim; Kim, Chanju; Rim, Chaiho; Yang, Bedl

    2000-01-01

    We study the ultraviolet asymptotics in affine Toda theories. These models are considered as perturbed non-affine Toda theories. We calculate the reflection amplitudes, which relate different exponential fields with the same quantum numbers. Using these amplitudes we derive the quantization condition for the vacuum wave function, describing zero-mode dynamics, and calculate the UV asymptotics of the effective central charge. These asymptotics are in a good agreement with thermodynamic Bethe ansatz results.

  12. Linking Chains Together: String Bits And The Bethe Ansatz

    CERN Document Server

    Lübcke, M

    2004-01-01

    This thesis is divided into two parts. In the first part we focus mainly on certain aspects of the AdS/CFT correspondence. The AdS/CFT correspondence is a proposed duality between Type IIB superstring theory on AdS5 × S5 and N = 4 supersymmetric Yang-Mills theory. In the BMN limit string states located in the center of AdS5 rotate quickly around the equator of the S5 and correspond, in the dual theory, to operators constructed as long chains of sub-operators. This structure of the operators can be formulated as a spin chain and by using the Bethe ansatz their properties can be obtained by solving a set of Bethe equations. Having infinitely many sub-operators, there are methods for solving the Bethe equations in certain sectors. In paper III finite size corrections to the anomalous dimensions in the SU(2) sector are calculated to leading order. Inspired by the chain structure of the corresponding operators, the theory of string bits treats the strings as a discrete sets of points. This theory suffers...

  13. GW and Bethe-Salpeter study of small water clusters

    Science.gov (United States)

    Blase, Xavier; Boulanger, Paul; Bruneval, Fabien; Fernandez-Serra, Marivi; Duchemin, Ivan

    2016-01-01

    We study within the GW and Bethe-Salpeter many-body perturbation theories the electronic and optical properties of small (H2O)n water clusters (n = 1-6). Comparison with high-level CCSD(T) Coupled-Cluster at the Single Double (Triple) levels and ADC(3) Green's function third order algebraic diagrammatic construction calculations indicates that the standard non-self-consistent G0W0@PBE or G0W0@PBE0 approaches significantly underestimate the ionization energy by about 1.1 eV and 0.5 eV, respectively. Consequently, the related Bethe-Salpeter lowest optical excitations are found to be located much too low in energy when building transitions from a non-self-consistent G0W0 description of the quasiparticle spectrum. Simple self-consistent schemes, with update of the eigenvalues only, are shown to provide a weak dependence on the Kohn-Sham starting point and a much better agreement with reference calculations. The present findings rationalize the theory to experiment possible discrepancies observed in previous G0W0 and Bethe-Salpeter studies of bulk water. The increase of the optical gap with increasing cluster size is consistent with the evolution from gas to dense ice or water phases and results from an enhanced screening of the electron-hole interaction.

  14. GW and Bethe-Salpeter study of small water clusters

    Energy Technology Data Exchange (ETDEWEB)

    Blase, Xavier, E-mail: xavier.blase@neel.cnrs.fr; Boulanger, Paul [CNRS, Institut NEEL, F-38042 Grenoble (France); Bruneval, Fabien [CEA, DEN, Service de Recherches de Métallurgie Physique, F-91191 Gif-sur-Yvette (France); Fernandez-Serra, Marivi [Department of Physics and Astronomy, Stony Brook University, Stony Brook, New York 11794-3800 (United States); Institute for Advanced Computational Sciences, Stony Brook University, Stony Brook, New York 11794-3800 (United States); Duchemin, Ivan [INAC, SP2M/L-Sim, CEA/UJF Cedex 09, 38054 Grenoble (France)

    2016-01-21

    We study within the GW and Bethe-Salpeter many-body perturbation theories the electronic and optical properties of small (H{sub 2}O){sub n} water clusters (n = 1-6). Comparison with high-level CCSD(T) Coupled-Cluster at the Single Double (Triple) levels and ADC(3) Green’s function third order algebraic diagrammatic construction calculations indicates that the standard non-self-consistent G{sub 0}W{sub 0}@PBE or G{sub 0}W{sub 0}@PBE0 approaches significantly underestimate the ionization energy by about 1.1 eV and 0.5 eV, respectively. Consequently, the related Bethe-Salpeter lowest optical excitations are found to be located much too low in energy when building transitions from a non-self-consistent G{sub 0}W{sub 0} description of the quasiparticle spectrum. Simple self-consistent schemes, with update of the eigenvalues only, are shown to provide a weak dependence on the Kohn-Sham starting point and a much better agreement with reference calculations. The present findings rationalize the theory to experiment possible discrepancies observed in previous G{sub 0}W{sub 0} and Bethe-Salpeter studies of bulk water. The increase of the optical gap with increasing cluster size is consistent with the evolution from gas to dense ice or water phases and results from an enhanced screening of the electron-hole interaction.

  15. Bibliographic Projects and Tools in Israel.

    Science.gov (United States)

    Kedar, Rochelle

    This paper presents several of the most prominent bibliographic tools and projects current in Israel, as well as a few specialized and less well-known projects. Bibliographic tools include the Israel Union Catalog and the Israel Union List of Serials. The following are the major bibliographic projects described: the National Jewish Bibliography…

  16. Civic and Citizenship Education in Israel.

    Science.gov (United States)

    Lemish, Peter

    2003-01-01

    States that in Israel, civic education successes enable civic myths--"Israel is a Jewish, democratic state" and "Israelis are Jews"--to be vibrant, gestalt worlds of meaning for Jewish Israelis, and sites of resistance for ultra-orthodox Jewish as well as Palestinian citizens of Israel. Analyzes the role of these myths. (BT)

  17. Electromagnetic form factor via Minkowski and Euclidean Bethe-Salpeter amplitudes

    CERN Document Server

    Karmanov, V A; Mangin-Brinet, M

    2007-01-01

    The electromagnetic form factors calculated through Euclidean Bethe-Salpeter amplitude and through the light-front wave function are compared with the one found using the Bethe-Salpeter amplitude in Minkowski space. The form factor expressed through the Euclidean Bethe-Salpeter amplitude (both within and without static approximation) considerably differs from the Minkowski one, whereas form factor found in the light-front approach is almost indistinguishable from it.

  18. Bethe-Salpeter equation in Minkowski space with cross-ladder kernel

    CERN Document Server

    Karmanov, V A

    2006-01-01

    A new method for solving the Bethe-Salpeter equation is developed. It allows to find the Bethe-Salpeter amplitudes both in Minkowski and in Euclidean spaces and, as a by product, the light-front wave function. The method is valid for any kernel given by irreducible Feynman graphs. Bethe-Salpeter and Light-Front equations for scalar particles with ladder + cross-ladder kernel are solved.

  19. Algebraic Bethe ansatz for Q-operators: The Heisenberg spin chain

    CERN Document Server

    Frassek, Rouven

    2015-01-01

    We diagonalize Q-operators for rational homogeneous sl(2)-invariant Heisenberg spin chains using the algebraic Bethe ansatz. After deriving the fundamental commutation relations relevant for this case from the Yang-Baxter equation we demonstrate that the Q-operators act diagonally on the Bethe vectors if the Bethe equations are satisfied. In this way we provide a direct proof that the eigenvalues of the Q-operators studied here are given by Baxter's Q-functions.

  20. Modified algebraic Bethe ansatz for XXZ chain on the segment – II – general cases

    Directory of Open Access Journals (Sweden)

    S. Belliard

    2015-05-01

    Full Text Available The spectral problem of the Heisenberg XXZ spin-12 chain on the segment is investigated within a modified algebraic Bethe ansatz framework. We consider in this work the most general boundaries allowed by integrability. The eigenvalues and the eigenvectors are obtained. They are characterised by a set of Bethe roots with cardinality equal to N, the length of the chain, and which satisfies a set of Bethe equations with an additional term.

  1. Bethe states for the two-site Bose–Hubbard model: A binomial approach

    Directory of Open Access Journals (Sweden)

    Gilberto Santos

    2015-06-01

    Full Text Available We calculate explicitly the Bethe vectors states by the algebraic Bethe ansatz method with the gl(2-invariant R-matrix for the two-site Bose–Hubbard model. Using a binomial expansion of the n-th power of a sum of two operators we get and solve a recursion equation. We calculate the scalar product and the norm of the Bethe vectors states. The form factors of the imbalance current operator are also computed.

  2. Mapping Israel/Palestine

    Directory of Open Access Journals (Sweden)

    Christine Leuenberger

    2012-01-01

    studies and the sociology of knowledge in order to analyze the social context of map-making and the content and structure of maps. The focus is on how and why British, American, and Arab online news outlets depict the contested territories of Israel and the Palestinian Territories in often varied and inconsistent ways. Certain online news sources have been accused of political biases concerning the Israeli-Palestinian conflict, which arguably translates into particular maps and map layers being included in news stories. Rather than they are being a direct and pre-determined link between map-choice and politics, however, I argue that map-making can be understood as a form of ‘situated’ practice. In other words, the newsroom brings together various actors, materials, technologies and resources that enable and constrain certain activities. It is therefore local cultures, social and interactional contingencies, and institutional and political circumstances that impact map-making and explain how and why maps may converge with or diverge from politics at any given time and place. At the same time, the choice of certain maps and map layers in terms of their focus, content, design, and detail is inevitably selective and can hereby become politically meaningful. It is thus the various textual and visual signifiers and the contextual information included in a map that can become politics by other means. Moreover, the types and sources of news stories and their maps are also co-determined by power politics, the structural inequities between the state of Israel and a Palestinian state-in-the-making, and their respective ease of access to public relations infrastructures that can reach the public at large.

  3. Modified algebraic Bethe ansatz for XXZ chain on the segment – I: Triangular cases

    Directory of Open Access Journals (Sweden)

    Samuel Belliard

    2015-03-01

    Full Text Available The modified algebraic Bethe ansatz, introduced by Crampé and the author [8], is used to characterize the spectral problem of the Heisenberg XXZ spin-12 chain on the segment with lower and upper triangular boundaries. The eigenvalues and the eigenvectors are conjectured. They are characterized by a set of Bethe roots with cardinality equal to N the length of the chain and which satisfies a set of Bethe equations with an additional term. The conjecture follows from exact results for small chains. We also present a factorized formula for the Bethe vectors of the Heisenberg XXZ spin-12 chain on the segment with two upper triangular boundaries.

  4. Algebraic Bethe ansatz for the XXX chain with triangular boundaries and Gaudin model

    CERN Document Server

    António, N Cirilo; Salom, I

    2014-01-01

    We implement fully the algebraic Bethe ansatz for the XXX Heisenberg spin chain in the case when both boundary matrices can be brought to the upper-triangular form. We define the Bethe vectors which yield the strikingly simple expression for the off shell action of the transfer matrix, deriving the spectrum and the corresponding Bethe equations. We explore further these results by obtaining the off shell action of the generating function of the Gaudin Hamiltonians on the Bethe vectors through the so-called quasi-classical limit.

  5. Israel Seminar 1989-90

    CERN Document Server

    Milman, Vitali

    1991-01-01

    The scope of the Israel seminar in geometric aspects of functional analysis during the academic year 89/90 was particularly wide covering topics as diverse as: Dynamical systems, Quantum chaos, Convex sets in Rn, Harmonic analysis and Banach space theory. The large majority of the papers are original research papers.

  6. Community Psychiatric Rehabilitation in Israel.

    Science.gov (United States)

    Levy, Amihay; Neumann, Micha

    1988-01-01

    This paper describes the development of community-based rehabilitation services for persons with mental illness in Israel. It focuses on occupational, social, and residential community psychiatric rehabilitation services. The paper argues that service development has been slow and out of step with the philosophy and objectives of community…

  7. Israel’s Technology Sector

    Science.gov (United States)

    2008-11-01

    Policy 33, no. 1 (February 2006): 33–46 (via EBSCO ). 95 Gil Avnimelech and Morris Teubal, “Evolutionary Innovation and Technology Policy: A Four-Phase... EBSCO ). Raj, N. Gopal. “India, Israel Yet to Work Out Specifics of Space Cooperation.” The Hindu online edition, September 10, 2003. http

  8. The thermal structure of Israel

    Directory of Open Access Journals (Sweden)

    E. Shalev

    2011-04-01

    Full Text Available Heat flux at the Arabian Shield is a significant component in reconstructing tectonic, seismic, and hydrologic models. In this paper we analyze temperature data from all the available oil and water wells in Israel. We show that the average heat flux in Israel is 40–45 mW m−2. A supporting evidence for the low heat flux is the relatively deep seismicity, extending almost to the mantle in the region. A Heat flux anomaly that exists in Northern Israel and Jordan could be attributed to groundwater flow or young magmatic activity (~100 000 years that is common in this area. Xenoliths that yield relatively steep geothermal gradients could be the result of local heating by magmas or by lithospheric necking and shear heating. The higher Heat flux in Southern Israel and Jordan probably reflects the opening of the Red Sea and the Gulf of Eilat and does not reflect the average value of the Arabian Shield.

  9. Educational Technology Policy in Israel

    Science.gov (United States)

    Slakmon, Benzi

    2017-01-01

    The study examines Israel's educational technology policy in light of the coming-of-age of ICT. The study shows the ways it has been developing, and identifies two major shifts which have occurred in recent years: the introduction of the national educational cloud, and the enabling of the "bring your own device" (BYOD) policy. The way…

  10. Physics over easy Breakfasts with Beth and physics

    CERN Document Server

    Azaroff, L V

    2010-01-01

    During a sequence of meals, the author relates the principal features of physics in easy-to-understand conversations with his wife Beth. Beginning with the studies of motion by Galileo and Newton through to the revolutionary theories of relativity and quantum mechanics in the 20th century, all important aspects of electricity, energy, magnetism, gravity and the structure of matter and atoms are explained and illustrated. The second edition similarly recounts the more recent application of these theories to nanoparticles, Bose-Einstein condensates, quantum entanglement and quantum computers. By

  11. Solving Bethe-Salpeter equation in Minkowski space

    CERN Document Server

    Karmanov, V A

    2005-01-01

    We develop a new method of solving Bethe-Salpeter (BS) equation for spinless particles. It is based on projecting the BS equation on the light-front plane and on the Nakanishi integral representation of the BS amplitude. The method is valid for any kernel given by the irreducible Feynman graphs and does not assume a transformation to the Euclidean space. For massless ladder exchange our approach reproduces analytically the Wick-Cutkosky equation. For massive ladder exchange the numerical results coincide with ones obtained by Wick rotation.

  12. Direct Bethe-Salpeter solutions in Minkowski space

    CERN Document Server

    Carbonell, J

    2016-01-01

    We review a method to directly solve the Bethe-Salpeter equation in Minkowski space, both for bound and scattering states. It is based on a proper treatment of the many singularities which appear in the kernel and propagators. The off-mass shell scattering amplitude for spinless particles interacting by a one boson exchange was computed for the first time. Using our Minkowski space solutions for the initial (bound) and final (scattering) states, we calculate elastic and transition (bound to scattering state) electromagnetic form factors. The conservation of the transition electromagnetic current J.q=0, verified numerically, confirms the validity of our solutions.

  13. Bethe-Salpeter equation in non-commutative space

    Directory of Open Access Journals (Sweden)

    M. Haghighat

    2005-06-01

    Full Text Available  We consider Bethe-Salpeter (BS equation for the bound state of two point particles in the non-commutative space-time. We subsequently explore the BS equation for spin0-spin0, spin1/2-spin1/2 and spin0-spin1/2 bound states. we show that the lowest order spin independent correction to energy spectrum in each case is of the order θ a 4 while the spin dependent one in NC space, is started at the order θ a 6.

  14. Spectra of Free Diquark in the Bethe-Salpeter Approach

    Institute of Scientific and Technical Information of China (English)

    YU Yan-Ming; KE Hong-Wei; DING Yi-Bing; GUO Xin-Heng; JIN Hong-Ying; LI Xue-Qian; SHEN Peng-Nian; WANG Guo-Li

    2006-01-01

    In this work, we employ the Bethe-Salpeter (B-S) equation to investigate the spectra of free diquarks and their B-S wave functions. We find that the B-S approach can be consistently applied to study the diqaurks with two heavy quarks or one heavy and one light quarks, but for two light-quark systems, the results are not reliable. There are a few free parameters in the whole scenario which can only be fixed phenomenologically. Thus, to determine them, one has to study baryons which are composed of quarks and diquarks.

  15. Bethe Ansatz Solutions of the Bose-Hubbard Dimer

    Directory of Open Access Journals (Sweden)

    Jon Links

    2006-12-01

    Full Text Available The Bose-Hubbard dimer Hamiltonian is a simple yet effective model for describing tunneling phenomena of Bose-Einstein condensates. One of the significant mathematical properties of the model is that it can be exactly solved by Bethe ansatz methods. Here we review the known exact solutions, highlighting the contributions of V.B. Kuznetsov to this field. Two of the exact solutions arise in the context of the Quantum Inverse Scattering Method, while the third solution uses a differential operator realisation of the su(2 Lie algebra.

  16. Integrability in three dimensions: Algebraic Bethe ansatz for anyonic models

    Directory of Open Access Journals (Sweden)

    Sh. Khachatryan

    2015-10-01

    Full Text Available We extend basic properties of two dimensional integrable models within the Algebraic Bethe Ansatz approach to 2+1 dimensions and formulate the sufficient conditions for the commutativity of transfer matrices of different spectral parameters, in analogy with Yang–Baxter or tetrahedron equations. The basic ingredient of our models is the R-matrix, which describes the scattering of a pair of particles over another pair of particles, the quark-anti-quark (meson scattering on another quark-anti-quark state. We show that the Kitaev model belongs to this class of models and its R-matrix fulfills well-defined equations for integrability.

  17. Reflections on Israel's Public Diplomacy

    Directory of Open Access Journals (Sweden)

    Meron Medzini

    2012-01-01

    Full Text Available La diplomatie publique d'Israël a été souvent vilipendée en Israël et à l'étranger. Ceci est largement dû à une différence entre la politique et le marketing de la politique. Les critiques de la hasbara israélienne soutiennent généralement que le maigre financement, les luttes intestines et la multiplicité des organisations responsables, le faible niveau professionnel sont responsables de la médiocre image d'Israël, surtout dans les pays occidentaux. Ils n'élargissent pas leur perspective jusqu'à voir que l'information soutient l'action, afin d'aider à formuler et à mettre en œuvre une politique par un marketing adéquat. Il demeure que lorsqu'Israël a poursuivi une politique positive, signé des traités de paix, fait des concessions, son image s'est considérablement améliorée. Quand le pays a choisi l'immobilisme, l'image s'est dégradée. Cet article décrit l'évolution de la diplomatie publique israélienne depuis 1948.Israel's public diplomacy has been the subject of much abuse and vilification both in Israel and abroad. This is largely due to the misunderstanding between policies and the marketing of those policies. Critics of Israel's Hasbara efforts usually argue that poor funding, organizational infighting, multiplicity of bodies dealing with Hasbara, low level and quality of officials are responsible for Israel's poor image mainly in Western countries. They fail to look at the broader picture in which information is a supporting action, designed to assist the formulation and implementation of a policy by marketing it properly. The fact remains that when Israel pursued what was seen as a positive policy, signed peace treaties and made territorial concessions, its image improved dramatically. When it adhered to a policy of immobilism its image plunged. The paper describes the evolution of Israel's public diplomacy since 1948.

  18. Functional Bethe ansatz methods for the open XXX chain

    Energy Technology Data Exchange (ETDEWEB)

    Frahm, Holger; Grelik, Jan H; Seel, Alexander; Wirth, Tobias, E-mail: Holger.Frahm@itp.uni-hannover.d, E-mail: Jan.Grelik@itp.uni-hannover.d, E-mail: Alexander.Seel@itp.uni-hannover.d [Institut fuer Theoretische Physik, Leibniz Universitaet Hannover, Appelstr. 2, 30167 Hannover (Germany)

    2011-01-07

    We study the spectrum of the integrable open XXX Heisenberg spin chain subject to non-diagonal boundary magnetic fields. The spectral problem for this model can be formulated in terms of functional equations obtained by separation of variables or, equivalently, from the fusion of transfer matrices. For generic boundary conditions the eigenvalues cannot be obtained from the solution of finitely many algebraic Bethe equations. Based on careful finite size studies of the analytic properties of the underlying hierarchy of transfer matrices we devise two approaches to analyze the functional equations. First we introduce a truncation method leading to Bethe-type equations determining the energy spectrum of the spin chain. In a second approach, the hierarchy of functional equations is mapped to an infinite system of nonlinear integral equations of TBA type. The two schemes have complementary ranges of applicability and facilitate an efficient numerical analysis for a wide range of boundary parameters. Some data are presented on the finite-size corrections to the energy of the state which evolves into the antiferromagnetic ground state in the limit of parallel boundary fields.

  19. Bethe-Salpeter equation with cross-ladder kernel in Minkowski and Euclidean spaces

    CERN Document Server

    Karmanov, V A; Mangin-Brinet, M

    2007-01-01

    Some results obtained by a new method for solving the Bethe-Salpeter equation are presented. The method is valid for any kernel given by irreducible Feynman graphs. The Bethe-Salpeter amplitude, both in Minkowski and in Euclidean spaces, and the binding energy for ladder + cross-ladder kernel are found. We calculate also the corresponding electromagnetic form factor.

  20. Algebraic Bethe ansatz for the Temperley–Lieb spin-1 chain

    Directory of Open Access Journals (Sweden)

    Rafael I. Nepomechie

    2016-09-01

    Full Text Available We use the algebraic Bethe ansatz to obtain the eigenvalues and eigenvectors of the spin-1 Temperley–Lieb open quantum chain with “free” boundary conditions. We exploit the associated reflection algebra in order to prove the off-shell equation satisfied by the Bethe vectors.

  1. Algebraic Bethe ansatz for the Temperley-Lieb spin-1 chain

    CERN Document Server

    Nepomechie, Rafael I

    2016-01-01

    We use the algebraic Bethe ansatz to obtain the eigenvalues and eigenvectors of the spin-1 Temperley-Lieb open quantum chain with "free" boundary conditions. We exploit the associated reflection algebra in order to prove the off-shell equation satisfied by the Bethe vectors.

  2. Algebraic Bethe ansatz for the Temperley-Lieb spin-1 chain

    Science.gov (United States)

    Nepomechie, Rafael I.; Pimenta, Rodrigo A.

    2016-09-01

    We use the algebraic Bethe ansatz to obtain the eigenvalues and eigenvectors of the spin-1 Temperley-Lieb open quantum chain with "free" boundary conditions. We exploit the associated reflection algebra in order to prove the off-shell equation satisfied by the Bethe vectors.

  3. The Bethe Sum Rule and Basis Set Selection in the Calculation of Generalized Oscillator Strengths

    DEFF Research Database (Denmark)

    Cabrera-Trujillo, Remigio; Sabin, John R.; Oddershede, Jens;

    1999-01-01

    Fulfillment of the Bethe sum rule may be construed as a measure of basis set quality for atomic and molecular properties involving the generalized oscillator strength distribution. It is first shown that, in the case of a complete basis, the Bethe sum rule is fulfilled exactly in the random phase...

  4. In Defense of Today's Struggling Reader: What Policymakers Can Learn from Beth

    Science.gov (United States)

    Spencer, Tamara

    2012-01-01

    Beth attends a New York City K-8, dual-language (Spanish/English) public school where 96% of the students qualify as low-income, based on participation in the federally funded lunch program. Early in Beth's 1st-grade year, she was classified as a struggling reader, based on district-wide assessments that identified academic deficits in such skill…

  5. Bethe ansatz matrix elements as non-relativistic limits of form factors of quantum field theory

    NARCIS (Netherlands)

    Kormos, M.; Mussardo, G.; Pozsgay, B.

    2010-01-01

    We show that the matrix elements of integrable models computed by the algebraic Bethe ansatz (BA) can be put in direct correspondence with the form factors of integrable relativistic field theories. This happens when the S-matrix of a Bethe ansatz model can be regarded as a suitable non-relativistic

  6. Algebraic Bethe Ansatz Solution to CN Vertex Model with Open Boundary Conditions

    Institute of Scientific and Technical Information of China (English)

    LI Guang-Liang; SHI Kang-Jie; YUE Rui-Hong

    2005-01-01

    We present three diagonal reflecting matrices for the CN vertex model with open boundary conditions and exactly solve the model by using the algebraic Bethe ansatz. The eigenvector is constructed and the eigenvalue and the associated Bethe equations are achieved. All the unwanted terms are cancelled out by three kinds of identities.

  7. Yangian symmetry, S-Matrices and Bethe Ansats for the Ads5 x S5 superstring

    NARCIS (Netherlands)

    de Leeuw, M.

    2009-01-01

    We discuss the relation between the recently derived bound state S-matrices for the AdS5× S5 superstring and Yangian symmetry. We will study the relation between this Yangian symmetry and the Bethe ansatz. In particular we can use it to derive the Bethe equations for bound states.

  8. Off-diagonal Bethe ansatz solution of the XXX spin-chain with arbitrary boundary conditions

    CERN Document Server

    Cao, Junpeng; Shi, Kangjie; Wang, Yupeng

    2013-01-01

    With the off-diagonal Bethe ansatz method proposed recently by the present authors, we exactly diagonalize the $XXX$ spin chain with arbitrary boundary fields. By constructing a functional relation between the eigenvalues of the transfer matrix and the quantum determinant, the associated $T-Q$ relation and the Bethe ansatz equations are derived.

  9. Off-diagonal Bethe ansatz solution of the XXX spin chain with arbitrary boundary conditions

    Science.gov (United States)

    Cao, Junpeng; Yang, Wen-Li; Shi, Kangjie; Wang, Yupeng

    2013-10-01

    Employing the off-diagonal Bethe ansatz method proposed recently by the present authors, we exactly diagonalize the XXX spin chain with arbitrary boundary fields. By constructing a functional relation between the eigenvalues of the transfer matrix and the quantum determinant, the associated T-Q relation and the Bethe ansatz equations are derived.

  10. Cystic echinococcosis in Southern Israel.

    Science.gov (United States)

    Ben-Shimol, Shalom; Sagi, Orli; Houri, Ohad; Bazarsky, Elina; Berkowitz, Anat; Bulkowstein, Shlomi; Barrett, Chiya; Greenberg, David

    2016-01-01

    The aim of this retrospective, population-based study was to characterize demographically and clinically cystic-echinococcosis (CE) in southern Israel, between 2005 and 2012. Newly-diagnosed (nd-CE) and past-diagnosed (pd-CE, diagnosed before the study) cases were defined. Two populations live in southern-Israel, receiving medical treatment at a single hospital: the Jewish and the Bedouin populations (resembling resource-rich and resource-poor populations, respectively). 126 CE cases were identified; 55 nd-CE and 71 pd-CE. Mean annual nd-CE incidence per 100,000 in the Bedouin and Jewish populations were 2.7 ± 1.2 and 0.4 ± 0.3, respectively (Pborn outside Israel. Liver and lung involvement were recorded in 85.7% and 15.1% of overall-CE, respectively. Abdominal pain, cough, fever, eosinophilia and asymptomatic disease were documented in 63.6%, 32.7%, 27.3%, 41.5% and 12.7% of nd-CE, respectively. Serology sensitivity for first test and any positive test were 67.3% and 83.3%, respectively. Computed tomography, ultrasonography and X-ray diagnosis were documented in 79.2%, 58.4% and 17.0% of overall-CE, respectively, with ultrasonography mainly used in liver-CE and X-ray in lung-CE. Treatment included surgery and albendazole in 50.0% and 55.3% of CE, respectively. We conclude that CE is endemic in southern-Israel among the Bedouin population, while disease is probably mainly imported in the Jewish population. Liver involvement and eosinophilia rates were high compared with those of other endemic regions, possibly due to differences in the timing of diagnosis. These findings may help developing treatment and prevention strategies.

  11. The consequences of Israel's counter terrorism policy

    OpenAIRE

    Jansen, Pia Therese

    2008-01-01

    The main focus of this thesis is to examine Israel's counter terrorism methods and their consequences and to debate the effectiveness of Israel's counter terrorism policy. By stimulating a debate on these issues it is possible to identify a more effective counter terrorism policy. In order to examine Israel's counter terrorism methods, their consequences and effectiveness, it is necessary to first explore the overall concepts of terrorism and counter terrorism. Then, because...

  12. Ethnic trajectories in Israel : comparing the "Bené Israel" and "Beta Israel" communities, 1950-2000

    NARCIS (Netherlands)

    Abbink, J.

    2002-01-01

    In this article a comparative study is presented of the Indian and the Ethiopian Jews in Israel, immigrant communities that went through similar experiences of integration and accommodation in Israel, despite the time lag in their arrival. Elements of their history and sociocultural background in th

  13. Solving the Bethe-Salpeter Equation in Euclidean Space

    CERN Document Server

    Dorkin, S M; Atti, C Ciofi degli; Kämpfer, B

    2010-01-01

    Different approaches to solve the spinor-spinor Bethe-Salpeter (BS) equation in Euclidean space are considered. It is argued that the complete set of Dirac matrices is the most appropriate basis to define the partial amplitudes and to solve numerically the resulting system of equations with realistic interaction kernels. Other representations can be obtained by performing proper unitary transformations. A generalization of the iteration method for finding the energy spectrum of the BS equation is discussed and examples of concrete calculations are presented. Comparison of relativistic calculations with available experimental data and with corresponding non relativistic results together with an analysis of the role of Lorentz boost effects and relativistic corrections are presented. A novel method related to the use of hyperspherical harmonics is considered for a representation of the vertex functions suitable for numerical calculations.

  14. Solving the Bethe-Salpeter Equation in Euclidean Space

    Science.gov (United States)

    Dorkin, S. M.; Kaptari, L. P.; Ciofi degli Atti, C.; Kämpfer, B.

    2011-03-01

    Different approaches to solve the spinor-spinor Bethe-Salpeter (BS) equation in Euclidean space are considered. It is argued that the complete set of Dirac matrices is the most appropriate basis to define the partial amplitudes and to solve numerically the resulting system of equations with realistic interaction kernels. Other representations can be obtained by performing proper unitary transformations. A generalization of the iteration method for finding the energy spectrum of the BS equation is discussed and examples of concrete calculations are presented. Comparison of relativistic calculations with available experimental data and with corresponding non relativistic results together with an analysis of the role of Lorentz boost effects and relativistic corrections are presented. A novel method related to the use of hyperspherical harmonics is considered for a representation of the vertex functions suitable for numerical calculations.

  15. Bethe-salpeter equation from many-body perturbation theory

    Energy Technology Data Exchange (ETDEWEB)

    Sander, Tobias; Starke, Ronald; Kresse, Georg [Computational Materials Physics, University of Vienna, Sensengasse 8/12, 1090 Vienna (Austria)

    2013-07-01

    The Green function formalism is a powerful tool to calculate not only electronic structure within the quasi-particle (QP) picture, but it also gives access to optical absorption spectra. Starting from QP energies within the GW method, the polarizability, as central quantity, is calculated from the solution of a Bethe-Salpeter-like equation (BSE). It is usually solved within the Tamm-Dancoff Approximation (TDA) which neglects the coupling of resonant (positive frequency branch) and anti-resonant (negative frequency branch) excitations. In this work we solve the full BSE (beyond TDA) based on self-consistently calculated QP orbitals and energies for typical systems. The dielectric function is averaged over many low dimensional shifted k-meshes to obtain k-point converged results. We compare the results to recently introduced approximation to the BSE kernel. Additionally, the time-evolution ansatz is employed to calculate the polarizability, which avoids the direct solution of the BSE.

  16. Phase Diagram for Ashkin-Teller Model on Bethe Lattice

    Institute of Scientific and Technical Information of China (English)

    LE Jian-Xin; YANG Zhan-Ru

    2005-01-01

    Using the recursion method, we study the phase transitions of the Ashkin-Teller model on the Bethe lattice,restricting ourselves to the case of ferromagnetic interactions. The isotropic Ashkin-Teller model and the anisotropic one are respectively investigated, and exact expressions for the free energy and the magnetization are obtained. It can be found that each of the three varieties of phase diagrams, for the anisotropic Ashkin-Teller model, consists of four phases, I.e., the fully disordered paramagnetic phase Para, the fully ordered ferromagnetic phase Ferro, and two partially ordered ferromagnetic phases and , while the phase diagram, for the isotropic Ashkin-Teller model,contains three phases, I.e., the fully disordered paramagnetic phase Para, the fully ordered ferromagnetic phase Baxter Phase, and the partially ordered ferromagnetic phase .

  17. Twist-three at five loops, Bethe Ansatz and wrapping

    CERN Document Server

    Beccaria, M; Lukowski, T; Zieme, S

    2009-01-01

    We present a formula for the five-loop anomalous dimension of N=4 SYM twist-three operators in the sl(2) sector. We obtain its asymptotic part from the Bethe Ansatz and finite volume corrections from the generalized Luescher formalism, considering scattering processes of spin chain magnons with virtual particles that travel along the cylinder. The complete result respects the expected large spin scaling properties and passes non-trivial tests including reciprocity constraints. We analyze the pole structure and find agreement with a conjectured resummation formula. In analogy with the twist-two anomalous dimension at four-loops, wrapping effects are of order log^2 M/M^2 for large values of the spin.

  18. Critical phenomena in one dimension from a Bethe ansatz perspective

    Science.gov (United States)

    Guan, Xiwen

    2014-08-01

    This article briefly reviews recent theoretical developments in quantum critical phenomena in one-dimensional (1D) integrable quantum gases of cold atoms. We present a discussion on quantum phase transitions, universal thermodynamics, scaling functions and correlations for a few prototypical exactly solved models, such as the Lieb-Liniger Bose gas, the spin-1 Bose gas with antiferromagnetic spin-spin interaction, the two-component interacting Fermi gas as well as spin-3/2 Fermi gases. We demonstrate that their corresponding Bethe ansatz solutions provide a precise way to understand quantum many-body physics, such as quantum criticality, Luttinger liquids (LLs), the Wilson ratio, Tan's Contact, etc. These theoretical developments give rise to a physical perspective using integrability for uncovering experimentally testable phenomena in systems of interacting bosonic and fermonic ultracold atoms confined to 1D.

  19. Modified binary encounter Bethe model for electron-impact ionization

    CERN Document Server

    Guerra, M; Indelicato, P; Santos, J P

    2013-01-01

    Theoretical expressions for ionization cross sections by electron impact based on the binary encounter Bethe (BEB) model, valid from ionization threshold up to relativistic energies, are proposed. The new modified BEB (MBEB) and its relativistic counterpart (MRBEB) expressions are simpler than the BEB (nonrelativistic and relativistic) expressions because they require only one atomic parameter, namely the binding energy of the electrons to be ionized, and use only one scaling term for the ionization of all sub-shells. The new models are used to calculate the K-, L- and M-shell ionization cross sections by electron impact for several atoms with Z from 6 to 83. Comparisons with all, to the best of our knowledge, available experimental data show that this model is as good or better than other models, with less complexity.

  20. Universal Bethe ansatz solution for the Temperley-Lieb spin chain

    CERN Document Server

    Nepomechie, Rafael I

    2016-01-01

    We consider the Temperley-Lieb (TL) open quantum spin chain with "free" boundary conditions associated with the spin-$s$ representation of quantum-deformed $sl(2)$. We construct the transfer matrix, and determine its eigenvalues and the corresponding Bethe equations using analytical Bethe ansatz. We show that the transfer matrix has quantum group symmetry, and we propose explicit formulas for the number of solutions of the Bethe equations and the degeneracies of the transfer-matrix eigenvalues. We propose an algebraic Bethe ansatz construction of the off-shell Bethe states, and we conjecture that the on-shell Bethe states are highest-weight states of the quantum group. We also propose a determinant formula for the scalar product between an off-shell Bethe state and its on-shell dual, as well as for the square of the norm. We find that all of these results, except for the degeneracies and a constant factor in the scalar product, are universal in the sense that they do not depend on the value of the spin. In an...

  1. Universal Bethe ansatz solution for the Temperley-Lieb spin chain

    Science.gov (United States)

    Nepomechie, Rafael I.; Pimenta, Rodrigo A.

    2016-09-01

    We consider the Temperley-Lieb (TL) open quantum spin chain with "free" boundary conditions associated with the spin-s representation of quantum-deformed sl (2). We construct the transfer matrix, and determine its eigenvalues and the corresponding Bethe equations using analytical Bethe ansatz. We show that the transfer matrix has quantum group symmetry, and we propose explicit formulas for the number of solutions of the Bethe equations and the degeneracies of the transfer-matrix eigenvalues. We propose an algebraic Bethe ansatz construction of the off-shell Bethe states, and we conjecture that the on-shell Bethe states are highest-weight states of the quantum group. We also propose a determinant formula for the scalar product between an off-shell Bethe state and its on-shell dual, as well as for the square of the norm. We find that all of these results, except for the degeneracies and a constant factor in the scalar product, are universal in the sense that they do not depend on the value of the spin. In an appendix, we briefly consider the closed TL spin chain with periodic boundary conditions, and show how a previously-proposed solution can be improved so as to obtain the complete (albeit non-universal) spectrum.

  2. No place to go: statelessness in Israel

    Directory of Open Access Journals (Sweden)

    Oded Feller

    2009-04-01

    Full Text Available Only in the past few years has Israel acknowledged that thereexists a problem of stateless persons living in Israel; however,this has not prompted the state to recognise the distress ofstateless people or to develop appropriate solutions.

  3. Israel debates raising commitment to CERN

    CERN Multimedia

    Watzman, H

    2000-01-01

    Israel's science ministry is debating whether to apply for full membership of CERN since the 1992 agreement allowing Israel observer status is about to expire. Israeli physicists are pushing for full membership for political as well as scientific reasons (1 page).

  4. Greater Israel? Moral and Political Questions.

    Science.gov (United States)

    Idinopulos, Thomas A.

    1985-01-01

    Right-wing parties in Israel consider the Arab-populated West Bank and Gaza an integral part of Israel. Moderate Israelis and Jewish-Americans view the occupied territories as Arab Palestinian lands that must be returned to Arab control if there is to be a solution to the Palestinian problem. A reasonable compromise is presented. (RM)

  5. U.S. Foreign Aid to Israel

    Science.gov (United States)

    2014-04-11

    received grants from the State Department’s Migration and Refugee Assistance account (MRA)58 to assist in the resettlement of migrants to Israel...FMF to Israel and $10 million in Migration and Refugee Assistance. The Missile Defense Agency’s FY2015 request for joint U.S.- Israeli programs is...Other Ongoing Assistance and Cooperative Programs .................................................................. 16 Migration & Refugee Assistance

  6. Formal and Applied Counseling in Israel

    Science.gov (United States)

    Israelashvili, Moshe; Wegman-Rozi, Orit

    2012-01-01

    Living in Israel is intensive and demanding but also meaningful and exciting. This article addresses the gap between the narrowly defined formal status of counseling in Israel and the widespread occurrence of counseling in various settings. It is argued that several recent changes, especially in the definition of treatment, along with the…

  7. Israel Seminar 1985-86

    CERN Document Server

    Milman, Vitali

    1987-01-01

    These are the proceedings of the Israel Seminar on the Geometric Aspects of Functional Analysis (GAFA) which was held between October 1985 and June 1986. The main emphasis of the seminar was on the study of the geometry of Banach spaces and in particular the study of convex sets in and infinite-dimensional spaces. The greater part of the volume is made up of original research papers; a few of the papers are expository in nature. Together, they reflect the wide scope of the problems studied at present in the framework of the geometry of Banach spaces.

  8. Solutions of the Bethe-Salpeter equation in Minkowski space and applications to electromagnetic form factors

    CERN Document Server

    Carbonell, J

    2010-01-01

    We present a new method for solving the two-body Bethe-Salpeter equation in Minkowski space. It is based on the Nakanishi integral representation of the Bethe-Salpeter amplitude and on subsequent projection of the equation on the light-front plane. The method is valid for any kernel given by the irreducible Feynman graphs and for systems of spinless particles or fermions. The Bethe-Salpeter amplitudes in Minkowski space are obtained. The electromagnetic form factors are computed and compared to the Euclidean results.

  9. Heisenberg XXX model with general boundaries: Eigenvectors from Algebraic Bethe ansatz

    CERN Document Server

    Belliard, S

    2013-01-01

    We propose a generalization of the algebraic Bethe ansatz to obtain the eigenvectors of the Heisenberg spin chain with general boundaries associated to the eigenvalues and the Bethe equations found recently by Cao et al. The ansatz takes the usual form of a product of operators acting on a particular vector except that the number of operators is equal to the length of the chain. We prove this result for the chains with small length. We obtain also an off-shell equation (i.e. satisfied without the Bethe equations) formally similar to the ones obtained in the periodic case or with diagonal boundaries.

  10. Heisenberg XXX Model with General Boundaries: Eigenvectors from Algebraic Bethe Ansatz

    Directory of Open Access Journals (Sweden)

    Samuel Belliard

    2013-11-01

    Full Text Available We propose a generalization of the algebraic Bethe ansatz to obtain the eigenvectors of the Heisenberg spin chain with general boundaries associated to the eigenvalues and the Bethe equations found recently by Cao et al. The ansatz takes the usual form of a product of operators acting on a particular vector except that the number of operators is equal to the length of the chain. We prove this result for the chains with small length. We obtain also an off-shell equation (i.e. satisfied without the Bethe equations formally similar to the ones obtained in the periodic case or with diagonal boundaries.

  11. Graph Zeta Function in the Bethe Free Energy and Loopy Belief Propagation

    CERN Document Server

    Watanabe, Yusuke

    2010-01-01

    We propose a new approach to the analysis of Loopy Belief Propagation (LBP) by establishing a formula that connects the Hessian of the Bethe free energy with the edge zeta function. The formula has a number of theoretical implications on LBP. It is applied to give a sufficient condition that the Hessian of the Bethe free energy is positive definite, which shows non-convexity for graphs with multiple cycles. The formula clarifies the relation between the local stability of a fixed point of LBP and local minima of the Bethe free energy. We also propose a new approach to the uniqueness of LBP fixed point, and show various conditions of uniqueness.

  12. Algebraic Bethe ansatz for the sl(2) Gaudin model with boundary

    CERN Document Server

    António, N Cirilo; Ragoucy, E; Salom, I

    2015-01-01

    Following Sklyanin's proposal in the periodic case, we derive the generating function of the Gaudin Hamiltonians with boundary terms. Our derivation is based on the quasi-classical expansion of the linear combination of the transfer matrix of the XXX Heisenberg spin chain and the central element, the so-called Sklyanin determinant. The corresponding Gaudin Hamiltonians with boundary terms are obtained as the residues of the generating function. By defining the appropriate Bethe vectors which yield strikingly simple off shell action of the generating function, we fully implement the algebraic Bethe ansatz, obtaining the spectrum of the generating function and the corresponding Bethe equations.

  13. Solutions of the Bethe-Salpeter Equation in Minkowski space: a comparative study

    CERN Document Server

    Salme`, Giovanni; Viviani, Michele

    2014-01-01

    The Bethe-Salpeter Equation for a two-scalar, S-wave bound system, interacting through a massive scalar, is investigated within the ladder approximation. By assuming a Nakanishi integral representation of the Bethe-Salpeter amplitude, one can deduce new integral equations that can be solved and quantitatively studied, overcoming the analytic difficulties of the Minkowski space. Finally, it is shown that the Light-front distributions of the valence state, directly obtained from the Bethe-Salpeter amplitude, open an effective window for studying the two-body dynamics.

  14. Heisenberg XXX Model with General Boundaries: Eigenvectors from Algebraic Bethe Ansatz

    Science.gov (United States)

    Belliard, Samuel; Crampé, Nicolas

    2013-11-01

    We propose a generalization of the algebraic Bethe ansatz to obtain the eigenvectors of the Heisenberg spin chain with general boundaries associated to the eigenvalues and the Bethe equations found recently by Cao et al. The ansatz takes the usual form of a product of operators acting on a particular vector except that the number of operators is equal to the length of the chain. We prove this result for the chains with small length. We obtain also an off-shell equation (i.e. satisfied without the Bethe equations) formally similar to the ones obtained in the periodic case or with diagonal boundaries.

  15. Israel's population: the challenge of pluralism.

    Science.gov (United States)

    Friedlander, D; Goldscheider, C

    1984-04-01

    This Bulletin describes the interplay of demographic and sociopolitical processes in Israel since the founding of the state in May 1948 and projects what it might be until the year 2015. Heavy Jewish immigration, especially during the mass immigration of 1948-51, has balanced the high natural increase of Moslems, who comprise the majority of Israeli Arabs, so that the proportion of Jews in Israel's population at the end of 1982 (83% of 4.1 million) was little changed from June 1948 (81% of 806,000). Even with Jewish immigration now low, this proportion is likely to be no lower than 76% in 2015, the Jewish proportion could be only 50% in a Greater Israel as Israel annexes the Occupied Areas of the West Bank and Gaza Strip where 1.2 million Arabs now live. Oriental Jews from less developed North African and Asian countries, 15% of Israel's Jewish population in 1984, with their largescale immigration to the mid-1960s and initially higher fertility, have managed to outnumber European-American Jews by 1970. This was an important factor in the 1977 shift of political dominance from the leftwing Labor parties, supported by the better educated, socialist leaning European-American Jews, to the rightwing Likud bloc, espousing economic policies based on more private initiative and Israel's historic rights to Judea and Samaria (West Bank). Western oriented Jews of European or American origin, although still the country's establishment, comprised only 40% of Israel's population by 1981. By 2015, their share is likely to be down to 30% within Israel's present boundaries and would be only 22% of the population of a Greater Israel. First raised by 19th century Zionists in Europe who set off the drive for the reestablishment of a Jewish national homeland in Palestine, the quesions of whether or not Israel will be a Jewish state and remain a Western society will continue salient into the 21st century.

  16. movimientos de paz en Israel

    Directory of Open Access Journals (Sweden)

    Tamar Groves

    2008-01-01

    Full Text Available La vuelta a la violencia en Oriente Medio en octubre de 2000 causó una crisis sin precedentes en el sector que apoyaba la paz dentro de la sociedad israelí. Sin embargo, precisamente en esta coyuntura surgió una nueva iniciativa llamada Taayush. En este artículo se analiza el marco de la relación dialéctica entre las acciones colectivas y la forja de una identidad colectiva para entender mejor cómo este nuevo actor social se convirtió rápidamente en un elemento destacado dentro del bando pro paz israelí. Además, basándose en el caso de Taayush, la autora sugiere que en situaciones de crisis de identidad colectiva el surgimiento de otra nueva que ofrezca más garantías para hacer frente a la nueva situación puede, a largo plazo, constituir la clave para la recuperación de la identidad colectiva previa de la que ha surgido.

  17. Transition electromagnetic form factor in the Minkowski space Bethe-Salpeter approach

    CERN Document Server

    Carbonell, J

    2013-01-01

    Using the solutions of the Bethe-Salpeter equation in Minkowski space for bound and scattering states found in previous works, we calculate the transition electromagnetic form factor describing the electro-disintegration of a bound system.

  18. Scattering solutions of Bethe-Salpeter equation in Minkowski and Euclidean spaces

    CERN Document Server

    Carbonell, J

    2016-01-01

    We shortly review different methods to obtain the scattering solutions of the Bethe-Salpeter equation in Minkowski space. We emphasize the possibility to obtain the zero energy observables in terms of the Euclidean scattering amplitude.

  19. BETHE ANSATZ FOR SUPERSYMMETRIC MODEL WITH?Uq[osp( 1|2 ) ] SYMMETRY

    Institute of Scientific and Technical Information of China (English)

    杨文力

    2001-01-01

    Using the algebraic Bethe ansatz method, we obtain the eigenvalues of the transfer matrix of the supersymmetric model with Uq[osp(1|2)] symmetry under periodic boundary and twisted boundary conditions.

  20. Spin-12 XYZ model revisit: General solutions via off-diagonal Bethe ansatz

    Directory of Open Access Journals (Sweden)

    Junpeng Cao

    2014-09-01

    Full Text Available The spin-12 XYZ model with both periodic and anti-periodic boundary conditions is studied via the off-diagonal Bethe ansatz method. The exact spectra of the Hamiltonians and the Bethe ansatz equations are derived by constructing the inhomogeneous T–Q relations, which allow us to treat both the even N (the number of lattice sites and odd N cases simultaneously in a unified approach.

  1. Small polaron with generic open boundary conditions: Exact solution via the off-diagonal Bethe ansatz

    Directory of Open Access Journals (Sweden)

    Xiaotian Xu

    2015-09-01

    Full Text Available The small polaron, a one-dimensional lattice model of interacting spinless fermions, with generic non-diagonal boundary terms is studied by the off-diagonal Bethe ansatz method. The presence of the Grassmann valued non-diagonal boundary fields gives rise to a typical U(1-symmetry-broken fermionic model. The exact spectra of the Hamiltonian and the associated Bethe ansatz equations are derived by constructing an inhomogeneous T–Q relation.

  2. Bethe ansatz solution of the $\\tau_2$-model with arbitrary boundary fields

    CERN Document Server

    Xu, Xiaotian; Yang, Tao; Cao, Junpeng; Yang, Wen-Li; Shi, Kangjie

    2016-01-01

    The quantum $\\tau_2$-model with generic site-dependent inhomogeneity and arbitrary boundary fields is studied via the off-diagonal Bethe Ansatz method. The eigenvalues of the corresponding transfer matrix are given in terms of an inhomogeneous T-Q relation, which is based on the operator product identities among the fused transfer matrices and the asymptotic behavior of the transfer matrices. Moreover, the associated Bethe Ansatz equations are also obtained.

  3. Israel and Iran: A Dangerous Rivalry

    Science.gov (United States)

    2011-01-01

    Times, February 23, 2011; and Jay Solomon, “U.S. Reacts to Fear of Iran’s Rising Clout,” Wall Street Journal, March 22, 2011, p. 6. 2 See, for example...role of ideology among Israel’s political elite, see Asher Arian, Poli- tics in Israel: The Second Republic, Washington, D.C.: CQ Press, 2005. 43 Halevi...www.haaretz.com/print-edition/opinion/growing-mideast-democracy- could-benefit-israel-too-1.354143 Arian, Asher , Politics in Israel: The Second Republic

  4. Belief Propagation and Bethe approximation for Traffic Prediction

    CERN Document Server

    Furtlehner, C; Lasgouttes, J M; Fortelle, Arnaud De La; Furtlehner, Cyril; Lasgouttes, Jean-Marc

    2007-01-01

    We define and study an inference algorithm based on "belief propagation" (BP) and the Bethe approximation. The idea is to encode into a graph an a priori information composed of correlations or marginal probabilities of variables, and to use a message passing procedure to estimate the actual state from some extra real-time information. This method is originally designed for traffic prediction and is particularly suitable in settings where the only information available is floating car data. We propose a discretized traffic description, based on the Ising model of statistical physics, in order to both reconstruct and predict the traffic in real time. General properties of BP are addressed in this context. In particular, a detailed study of stability is proposed with respect to the a priori data and the graph topology. The behavior of the algorithm is illustrated by numerical studies on a simple traffic toy model. How this approach can be generalized to encode superposition of many traffic patterns is discussed...

  5. A systematic approach to sketch Bethe-Salpeter equation

    Science.gov (United States)

    Qin, Si-xue

    2016-03-01

    To study meson properties, one needs to solve the gap equation for the quark propagator and the Bethe-Salpeter (BS) equation for the meson wavefunction, self-consistently. The gluon propagator, the quark-gluon vertex, and the quark-anti-quark scattering kernel are key pieces to solve those equations. Predicted by lattice-QCD and Dyson-Schwinger analyses of QCD's gauge sector, gluons are non-perturbatively massive. In the matter sector, the modeled gluon propagator which can produce a veracious description of meson properties needs to possess a mass scale, accordingly. Solving the well-known longitudinal Ward-Green-Takahashi identities (WGTIs) and the less-known transverse counterparts together, one obtains a nontrivial solution which can shed light on the structure of the quark-gluon vertex. It is highlighted that the phenomenologically proposed anomalous chromomagnetic moment (ACM) vertex originates from the QCD Lagrangian symmetries and its strength is proportional to the magnitude of dynamical chiral symmetry breaking (DCSB). The color-singlet vector and axial-vector WGTIs can relate the BS kernel and the dressed quark-gluon vertex to each other. Using the relation, one can truncate the gap equation and the BS equation, systematically, without violating crucial symmetries, e.g., gauge symmetry and chiral symmetry.

  6. Hyperon stars in the Brueckner-Bethe-Goldstone theory

    CERN Document Server

    Baldo, Marcello; Schulze, H J

    2000-01-01

    In the framework of the Brueckner-Bethe-Goldstone theory, we determine a fully microscopic equation of state for asymmetric and $\\beta$-stable nuclear matter containing $\\sim$ and $\\la$ hyperons. We use the Paris and the new Argonne $Av_{18}$ two-body nucleon interaction, whereas the nucleon-hyperon interaction is described by the Njimegen soft-core model. We stress the role played by the three-body nucleon interaction, which produces a strong repulsion at high densities. This enhances enormously the hyperon population, and produces a strong softening of the equation of state, which turns out almost independent on the nucleon-nucleon interaction. We use the new equation of state in order to calculate the structure of static neutron stars. We obtain a maximum mass configuration with $M_{\\rm max}$ = 1.26 (1.22) when the Paris ($Av_{18}$) nucleon potential is adopted. Central densities are about 10 times normal nuclear matter density. Stellar rotations, treated within a perturbative approach, increase the value ...

  7. Instantaneous Bethe-Salpeter Equation and Its Exact Solution

    Institute of Scientific and Technical Information of China (English)

    CHANG Chao-Hsi; CHEN Jiao-Kai; LI Xue-Qian; WANG Guo-Li

    2005-01-01

    We present an approach to solve Bethe-Salpeter (BS) equations exactly without any approximation if the kernel of the BS equations exactly is instantaneous, and take positronium as an example to illustrate the general features of the exact solutions. The key step for the approach is from the BS equations to derive a set of coupled and welldetermined integration equations in linear eigenvalue for the components of the BS wave functions equivalently, which may be solvable numerically under a controlled accuracy, even though there is no analytic solution. For positronium,the exact solutions precisely present corrections to those of the corresponding Schrodinger equation in order v1 (v is the relative velocity) for eigenfunctions, in order v2 for eigenvalues, and the mixing between S and D components in JPC = 1- states etc., quantitatively. Moreover, we also point out that there is a questionable step in some existent derivations for the instantaneous BS equations if one is pursuing the exact solutions. Finally, we emphasize that one should take the O(v) corrections emerging in the exact solutions into account accordingly if one is interested in the relativistic corrections for relevant problems to the bound states.

  8. A systematic approach to sketch Bethe-Salpeter equation

    Directory of Open Access Journals (Sweden)

    Qin Si-xue

    2016-01-01

    Full Text Available To study meson properties, one needs to solve the gap equation for the quark propagator and the Bethe-Salpeter (BS equation for the meson wavefunction, self-consistently. The gluon propagator, the quark-gluon vertex, and the quark–anti-quark scattering kernel are key pieces to solve those equations. Predicted by lattice-QCD and Dyson-Schwinger analyses of QCD’s gauge sector, gluons are non-perturbatively massive. In the matter sector, the modeled gluon propagator which can produce a veracious description of meson properties needs to possess a mass scale, accordingly. Solving the well-known longitudinal Ward-Green-Takahashi identities (WGTIs and the less-known transverse counterparts together, one obtains a nontrivial solution which can shed light on the structure of the quark-gluon vertex. It is highlighted that the phenomenologically proposed anomalous chromomagnetic moment (ACM vertex originates from the QCD Lagrangian symmetries and its strength is proportional to the magnitude of dynamical chiral symmetry breaking (DCSB. The color-singlet vector and axial-vector WGTIs can relate the BS kernel and the dressed quark-gluon vertex to each other. Using the relation, one can truncate the gap equation and the BS equation, systematically, without violating crucial symmetries, e.g., gauge symmetry and chiral symmetry.

  9. Efficient implementation of core-excitation Bethe Salpeter equation calculations

    CERN Document Server

    Gilmore, K; Shirley, E L; Prendergast, D; Pemmaraju, C D; Kas, J J; Vila, F D; Rehr, J J

    2016-01-01

    We present an efficient implementation of the Bethe-Salpeter equation (BSE) method for obtaining core-level spectra including x-ray absorption (XAS), x-ray emission (XES), and both resonant and non-resonant inelastic x-ray scattering spectra (N/RIXS). Calculations are based on density functional theory (DFT) electronic structures generated either by abinit or Quantumespresso, both plane-wave basis, pseudopotential codes. This electronic structure is improved through the inclusion of a GW self energy. The projector augmented wave technique is used to evaluate transition matrix elements between core-level and band states. Final two-particle scattering states are obtained with the NIST core-level BSE solver (NBSE). We have previously reported this implementation, which we refer to as ocean (Obtaining Core Excitations from Ab initio electronic structure and NBSE) [Phys. Rev. B 83, 115106 (2011)]. Here, we present additional efficiencies that enable us to evaluate spectra for systems ten times larger than previous...

  10. A systematic approach to sketch Bethe-Salpeter equation

    CERN Document Server

    Qin, Si-xue

    2016-01-01

    To study meson properties, one needs to solve the gap equation for the quark propagator and the Bethe-Salpeter (BS) equation for the meson wavefunction, self-consistently. The gluon propagator, the quark-gluon vertex, and the quark--anti-quark scattering kernel are key pieces to solve those equations. Predicted by lattice-QCD and Dyson-Schwinger analyses of QCD's gauge sector, gluons are non-perturbatively massive. In the matter sector, the modeled gluon propagator which can produce a veracious description of meson properties needs to possess a mass scale, accordingly. Solving the well-known longitudinal Ward-Green-Takahashi identities (WGTIs) and the less-known transverse counterparts together, one obtains a nontrivial solution which can shed light on the structure of the quark-gluon vertex. It is highlighted that the phenomenologically proposed anomalous chromomagnetic moment (ACM) vertex originates from the QCD Lagrangian symmetries and its strength is proportional to the magnitude of dynamical chiral symm...

  11. Hidden Relation between Reflection Amplitudes and Thermodynamic Bethe Ansatz

    CERN Document Server

    Ahn, C; Rim, C; Ahn, Changrim; Kim, Chanju; Rim, Chaiho

    1999-01-01

    In this paper we compute the scaling functions of the effective central charges for various quantum integrable models in a deep ultraviolet region $R\\to 0$ using two independent methods. One is based on the ``reflection amplitudes'' of the (super-)Liouville field theory where the scaling functions are given by the conjugate momentum to the zero-modes. The conjugate momentum is quantized for the sinh-Gordon, the Bullough-Dodd, and the super sinh-Gordon models where the quantization conditions depend on the size $R$ of the system and the reflection amplitudes. The other method is to solve the standard thermodynamic Bethe ansatz (TBA) equations for the integrable models in a perturbative series of $1/(const. - \\ln R)$. The constant factor which is not fixed in the lowest order computations can be identified {\\it only when} we compare the higher order corrections with the quantization conditions. Numerical TBA analysis shows a perfect match for the scaling functions obtained by the first method. Our results show ...

  12. Agglomerative percolation on the Bethe lattice and the triangular cactus

    Science.gov (United States)

    Chae, Huiseung; Yook, Soon-Hyung; Kim, Yup

    2013-08-01

    Agglomerative percolation (AP) on the Bethe lattice and the triangular cactus is studied to establish the exact mean-field theory for AP. Using the self-consistent simulation method based on the exact self-consistent equations, the order parameter P∞ and the average cluster size S are measured. From the measured P∞ and S, the critical exponents βk and γk for k = 2 and 3 are evaluated. Here, βk and γk are the critical exponents for P∞ and S when the growth of clusters spontaneously breaks the Zk symmetry of the k-partite graph. The obtained values are β2 = 1.79(3), γ2 = 0.88(1), β3 = 1.35(5) and γ3 = 0.94(2). By comparing these exponents with those for ordinary percolation (β∞ = 1 and γ∞ = 1), we also find β∞ γ3 > γ2. These results quantitatively verify the conjecture that the AP model belongs to a new universality class if the Zk symmetry is broken spontaneously, and the new universality class depends on k.

  13. N=6 super Chern-Simons theory S-matrix and all-loop Bethe ansatz equations

    CERN Document Server

    Ahn, Changrim

    2008-01-01

    We propose the exact S-matrix for the planar limit of the N=6 super Chern-Simons theory recently proposed by Aharony, Bergman, Jafferis, and Maldacena for the AdS_4/CFT_3 correspondence. Assuming SU(2|2) symmetry, factorizability and certain crossing-unitarity relations, we find the S-matrix including the dressing phase. We use this S-matrix to formulate the asymptotic Bethe ansatz. Our result for the Bethe-Yang equations and corresponding Bethe ansatz equations confirms the all-loop Bethe ansatz equations recently conjectured by Gromov and Vieira.

  14. Israel: the Division before Peace

    Directory of Open Access Journals (Sweden)

    Ferran Izquierdo Brichs

    2000-01-01

    Full Text Available The process of the Middle East peace negotiations at the beginning of the 1990s has its roots in the changes in the international system and in Israeli society. The end of the Cold War, the Gulf War in 1990-1991 and globalization forced all the region’s actors to resituate themselves within the new international context. However, Israeli society neither experienced the international changes in the same way as its neighbors nor did it undergo the same evolutionduring the conflict with the Arabs. Because of this, the debate over peace and the future of the occupied territories became a factor for political and ideological division. Influencing this debate were revised conceptions on security, the economy, and the role Israel should play in the world. The Middle East peace talks began because the strongest side in the conflict, Israel’s Labor government, came to perceive that the maintenance of the status quo was negative forits interests. From the Israeli point of view, the conflict had long been considered a zero-sum game despite the Palestinian’s compromises since the construction of the Palestinian State involved handing over part of the territory claimed by the Jews. Recent changes in the perceptions of Israeli’s own interests, though, led some sectors of Jewish society to re-think and diminish the supposed incompatibility between Palestine nationalism and Zionism, which then opened the doors towards peace. For the Labor government, the territorial occupation of all Palestine was no longer a central objective. In fact, the basic interests of the Labor party’s policies shifted due to the globalization of the international system. For Likud and the Zionist revisionists, however, the occupation and the colonization of Eretz Israel still form the basic ideology of the State –of its reason for being– for which even today both are associated with the national interest, together with Israel’s very survival. Seen this way, Israel

  15. Scalar products of Bethe vectors in models with $\\mathfrak{gl}(2|1)$ symmetry 1. Super-analog of Reshetikhin formula

    CERN Document Server

    Hutsalyuk, A; Pakuliak, S Z; Ragoucy, E; Slavnov, N A

    2016-01-01

    We study scalar products of Bethe vectors in integrable models solvable by nested algebraic Bethe ansatz and possessing $\\mathfrak{gl}(2|1)$ symmetry. Using explicit formulas of the monodromy matrix entries multiple actions onto Bethe vectors we obtain a representation for the scalar product in the most general case. This explicit representation appears to be a sum over partitions of the Bethe parameters. It can be used for the analysis of scalar products involving on-shell Bethe vectors. As a by-product, we obtain a determinant representation for the scalar products of generic Bethe vectors in integrable models with $\\mathfrak{gl}(1|1)$ symmetry.

  16. Topologically Twisted SUSY Gauge Theory, Gauge-Bethe Correspondence and Quantum Cohomology

    CERN Document Server

    Chung, Hee-Joong

    2016-01-01

    We calculate partition function and correlation functions in A-twisted 2d $\\mathcal{N}=(2,2)$ theories and topologically twisted 3d $\\mathcal{N}=2$ theories containing adjoint chiral multiplet with particular choices of $R$-charges and the magnetic fluxes for flavor symmetries. According to Gauge-Bethe correspondence, they correspond to Heisenberg XXX and XXZ spin chain models. We identify the partition function as the inverse of the norm of the Bethe eigenstates. Correlation functions are identified as the coefficients of the expectation value of Baxter $Q$-operators. In addition, we consider correlation functions of 2d $\\mathcal{N}=(2,2)^*$ theory and their relation to equivariant quantum cohomology and equivariant integration of cotangent bundle of Grassmann manifolds. Also, we study the ring relations of supersymmetric Wilson loops in 3d $\\mathcal{N}=2^*$ theory and Bethe subalgebra of XXZ spin chain model.

  17. Israel y su modernización

    Directory of Open Access Journals (Sweden)

    Mario Sznajder

    2013-01-01

    Full Text Available Este artículo trata el problema de la modernización y la modernidad de Israel, utilizando para esto, como marco teórico principal, la visión de Múltiples Modernidades de Shmuel Noah Eisenstadt. De acuerdo a este tipo de análisis cada modernización y modernidad se presenta como una variante que incluye elementos tradicionales y locales del modelo original de la Ilustración. En el caso de Israel, cuya sociedad moderna es mayormente inmigratoria y altamente heterogénea, se podría llegar a argumentar que la multiplicidad se torna en un aspecto interno del proceso. La modernización dialécticamente produce resultados contrarios a las intenciones y planes originales de quienes la ponen en marcha, y esto se manifiesta en el caso de Israel a través del resurgimiento religioso, el retorno a tradiciones e identidades étnicas que precedieron el intento de establecer una sociedad moderna y sus bases ideológicas radicadas en el sionismo, y ello sin dejar de lado la sociedad palestina local –o árabe israelí-, absorbida dentro del marco general de la sociedad israelí.

  18. Modified Bethe formula for low-energy electron stopping power without fitting parameters.

    Science.gov (United States)

    Nguyen-Truong, Hieu T

    2015-02-01

    We propose a modified Bethe formula for low-energy electron stopping power without fitting parameters for a wide range of elements and compounds. This formula maintains the generality of the Bethe formula and gives reasonable agreement in comparing the predicted stopping powers for 15 elements and 6 compounds with the experimental data and those calculated within dielectric theory including the exchange effect. Use of the stopping power obtained from this formula for hydrogen silsesquioxane in Monte Carlo simulation gives the energy deposition distribution in consistent with the experimental data.

  19. A Novel Approach in Solving the Spinor-Spinor Bethe-Salpeter Equation

    CERN Document Server

    Dorkin, S M; Semikh, S S; Kaptari, L P

    2008-01-01

    To solve the spinor-spinor Bethe-Salpeter equation in Euclidean space we propose a novel method related to the use of hyperspherical harmonics. We suggest an appropriate extension to form a new basis of spin-angular harmonics that is suitable for a representation of the vertex functions. We present a numerical algorithm to solve the Bethe-Salpeter equation and investigate in detail the properties of the solution for the scalar, pseudoscalar and vector meson exchange kernels including the stability of bound states. We also compare our results to the non relativistic ones and to the results given by light front dynamics.

  20. [Epidemiology of Hansen's disease in Israel].

    Science.gov (United States)

    Seidenbaum, M; Slater, P E; Ever-Hadani, P; Costin, C; Leviatan, A

    1993-08-01

    There are currently 200 patients with Hansen's disease in Israel who are being followed by the Hansen's Disease Government Hospital and the Ministry of Health (prevalence 4.4/100,000). Most of them immigrated from countries where the disease is endemic. Dermatological findings dominated the initial clinical picture, although 5% of patients are asymptomatic contacts of known cases. Age at onset of disease was less than 20 years in 1/4 of the cases. The incidence in Israel is falling: 0.4/100,000 in 1985-89 compared to 3.6/100,000 in 1950-54. Neurologic and dermatologic findings in an immigrant of any age originating from countries where Hansen's disease is endemic, should prompt appropriate diagnostic evaluation, even years after immigration to Israel. Contacts of known cases of Hansen's disease should be aggressively screened, even if asymptomatic.

  1. Spirituality in Teacher Training at an Islamic College in Israel

    Science.gov (United States)

    Erdreich, Lauren

    2016-01-01

    This article looks at an Islamic teacher training college in Israel in an attempt to understand how religious revival shapes women's understandings of being Muslim women professionals in Israel. The college grew out of Islamic revival in Israel; its teacher training program reflects the sensibilities that Islamic revival hopes to foster in women…

  2. Israel: a crise próxima

    Directory of Open Access Journals (Sweden)

    Peter DEMANT

    2014-12-01

    Full Text Available Apesar de êxitos indisputáveis, o Estado de Israel enfrenta problemas estruturais decorrentes do conflito com o mundo árabe. O texto analisa cinco vulnerabilidades subestimadas: (1 demografia: o crescimento dos ultraortodoxos e dos árabes israelenses, ambos antissionistas, que arrisca tornar minoria os judeus sionistas; (2 estratégia: novas formas de resistência usadas pelos árabes, tanto militares, como os mísseis, quanto pacíficas, como a resistência não violenta, estão progressivamente se tornando contraproducentes à ocupação israelense de territórios inimigos; (3 regional: a Primavera Árabe, apesar dos fracassos, é uma etapa na democratização e modernização das sociedades árabes que acabará erodindo a vantagem qualitativa-educacional israelense; (4 internacional: Israel depende, militar e economicamente, do apoio ocidental, mas, movidos por seus próprios desenvolvimentos demográficos e culturais, os europeus se mostram cada vez mais indiferentes ou hostis a Israel; e até nos EUA, último reduto de simpatia pró-israelense, a identificação com o Estado judaico pode se tornar mais frágil; (5 mundo judaico: devido à orientação cada vez mais particularista de Israel, há, em vez de legitimação recíproca, ameaça de alienação entre as diásporas judaicas e Israel. O artigo conclui que, a termo, as custas políticas, militares e socioculturais que a beligerância permanente impõe a Israel podem constituir um risco existencial para este país. Eventualmente, os dilemas podem se tornar perigosos para sua sobrevivência como Estado judaico.

  3. Israel: Background and U.S. Relations

    Science.gov (United States)

    2014-07-31

    in Jordan. In November 2005, militants from the Islamic State’s precursor organization, Al Qaeda in Iraq, carried out a series of hotel bombings in...footnote 229 for information on Israel-EU trade as a percentage of Israel’s total trade volume. 139 “Europe Bans Eggs and Chicken From Settlements...Kerry, “Remarks at Solo Press Availability,” David Citadel Hotel , Jerusalem, January 5, 2014. 187 Shiffer, op. cit.; Dan Williams, “Israel minister

  4. [The centenary of the Israel Medical Association].

    Science.gov (United States)

    Levy, Nissim

    2012-01-01

    On January 12th 1912, six Jewish physicians and one pharmacist assembled in Tel-Aviv to proclaim the founding of the Jaffa Hebrew Medical Society. One year later the Jewish doctors of Jerusalem established the "Society of Hebrew Speaking Physicians". On 28th December, 1918 a few weeks after the end of World War 1, both organizations merged into the Hebrew Medical Association which later became the Israel Medical Association (I.M.A.). The Association played a leading role in the advancement of medicine in the Holy Land and was instrumental in imposing the Hebrew medical terminology in the newly founded State of Israel.

  5. U.S. Foreign Aid to Israel

    Science.gov (United States)

    2012-03-12

    for Israel,” Gallup, February 28, 2011. 2 The national survey of 1,000 likely voters was conducted by Greenberg Quinlan Rosner February 7-9, 2011...after it bombed the Iraqi nuclear reactor at Osirak in 1981. 47 David S. Cloud, “Inquiry Opened Into Israeli Use Of U.S. Bombs,” New York Times...Egyptian Peace Treaty The 1979 Camp David Peace Treaty between Israel and Egypt ushered in the current era of U.S. financial support for peace between

  6. Marble in Israel : A. Shadmon. Ministry of Development, State of Israel, Jerusalem, 1965, 56 pp., 36 fig., 2 tables

    NARCIS (Netherlands)

    Manten, A.A.

    1966-01-01

    The booklet Marble in Israel is announced to be the first in a series of reports on the mineral building commodities of Israel, which series will summarize the information available on the subject at the Quarries Section of the Israel Geological Survey and the Office of the Controller of Mines. Shad

  7. Numerical solution of the spinor Bethe-Salpeter equation and the Goldstein problem

    NARCIS (Netherlands)

    L.G. Suttorp

    1978-01-01

    The spinor Bethe-Salpeter equation describing bound states of a fermion-antifermion pair with massless-boson exchange reduces to a single (uncoupled) partial differential equation for special combinations of the fermion-boson couplings. For spinless bound states with positive or negative parity this

  8. Exact solutions of the spinor Bethe-Salpeter equation for tightly bound states

    NARCIS (Netherlands)

    Suttorp, L.G.

    1975-01-01

    Exact solutions are obtained for the spinor Bethe-Salpeter equation that describes tightly bound states of spin-/sup 1///sub 2/ fermions with massless-boson exchange. The corresponding coupling constants form a discrete spectrum that depends continuously on the parameters characterizing the type of

  9. Normalization and perturbation theory for tightly bound states of the spinor Bethe-Salpeter equation

    NARCIS (Netherlands)

    L.G. Suttorp

    1976-01-01

    The normalisation integrals for the tightly-bound-state solutions of the spinor Bethe-Salpeter equation that have been derived recently are evaluated. Ghost states are found to appear when the continuous parameters characterising the type of fermion-boson interaction reach a critical value. Perturba

  10. Distinct solutions of infinite U Hubbard model through nested Bethe ansatz and Gutzwiller projection operator approach

    Energy Technology Data Exchange (ETDEWEB)

    Mishra, A.K., E-mail: mishra@imsc.res.i [Insitituto Nacional de Pesquidas Espaciais - INPE, P.O. Box 103, CP 515, S. J. Campos, SP 12245-970 (Brazil); Kishore, R., E-mail: kishore@las.inpe.b [Insitituto Nacional de Pesquidas Espaciais - INPE, P.O. Box 103, CP 515, S. J. Campos, SP 12245-970 (Brazil)

    2009-10-15

    The exact nested Bethe ansatz solution for the one dimensional (1-D) U infinity Hubbard model show that the state vectors are a product of spin-less fermion and spin wavefunctions, or an appropriate superposition of such factorized wavefunctions. The spin-less fermion component of the wavefunctions ensures no double occupancy at any site. It had been demonstrated that the nested Bethe ansatz wavefunctions in the U infinity limit obey orthofermi statistics. Gutzwiller projection operator formalism is the another well known technique employed to handle U infinity Hubbard model. In general, this approach does not lead to spin-less fermion wavefunctions. Therefore, the nested Bethe ansatz and Gutzwiller projection operator approach give rise to different kinds of the wavefunctions for the U infinity limit of 1-D Hubbard Hamiltonian. To compare the consequences of this dissimilarity in the wavefunctions, we have obtained the ground state energy of a finite system consisting of three particles on a four site closed chain. It is shown that in the nested Bethe ansatz implemented through orthofermion algebra, all the permissible 2{sup 3} spin configurations are degenerate in the ground state. This eight fold degeneracy of the ground state is absent in the Gutzwiller projection operator approach. This finding becomes relevant in the context of known exact U infinity results, which require that all the energy levels are 2{sup N}-fold degenerate for an N particle system.

  11. The Spin Symmetry of Heavy Baryons in the Framework of the Bethe-Salpeter Equation

    Institute of Scientific and Technical Information of China (English)

    CUI Jian-Ying; JIN Hong-Ying; WU Ji-Min

    2001-01-01

    We study the baryons containing a heavy quark in the framework of Bethe-Salpeter (BS) equation. The most general forms of the BS wavefunctions are given. In the heavy-quark limit we simplify the BS equations and we show clearly that the spin symmetry exists in heavy baryon states.``

  12. Academic Colleges: Transforming Higher Education in Israel.

    Science.gov (United States)

    Meltz, Noah M.

    2001-01-01

    Examines policy issues surrounding the accommodation of increased Israeli demand for higher education, comparing the country with Canada, which has also been considering whether to permit private higher education institutions. Concludes that academic colleges in Israel have been successful in absorbing a huge increase in enrollment, while…

  13. Is nursing shortage in Israel inevitable?

    Science.gov (United States)

    2014-01-01

    Israel has a low density of professional nurses. New evidence suggests less than optimal hospital work environments may undermine efficient and effective delivery of nursing care and contribute to job dissatisfaction and nurse turnover among nurses who are in short supply. Potential approaches to address these challenges are discussed. PMID:24661378

  14. Birth Order and Marital Bliss in Israel

    Science.gov (United States)

    Weller, Leonard; And Others

    1974-01-01

    This study offers a rank order of successful marriages, according to birth order in Israel. The results of two studies show that marriage consisting of a first born and a later born are more successful than marriages composed of two first borns or two later borns. (Author/PC)

  15. The Teaching of Additional Languages in Israel.

    Science.gov (United States)

    Hallel, Michael; Spolsky, Bernard

    1992-01-01

    Describes the linguistic situation in Israel and the language teaching policies and practices in Israeli schools. Policy is dominated by the ideological role and practical value of Hebrew, and is further driven by the large numbers of non-Jewish minorities, the status of English as a world language, and the political values of Arabic. (21…

  16. Israel, CERN’s new Member State

    CERN Multimedia

    Anaïs Schaeffer

    2014-01-01

    On Wednesday, 15 January 2014, the official Israeli Flag-raising Ceremony took place to mark the accession of Israel to Membership of CERN, bringing the Organization’s number of Member States to 21.     For more information, click here.

  17. Israel : Gulf of Aqaba Environmental Action Plan

    OpenAIRE

    World Bank; European Union

    2000-01-01

    The Gulf of Aqaba Environmental Action Plan (GAEAP) represents for the Government of Israel a step towards achieving the national environmental objectives outlined in its legislation. The proposed actions, both curative and preventive, will protect the Gulf's land and water interface and ensure conservation of natural resources within a framework in which economic development can take plac...

  18. Primo Levi, Giorgio Pressburger e Israele

    NARCIS (Netherlands)

    Speelman, R.M.

    2014-01-01

    Primo Levi, ebreo non religioso, ha sentito ciò nonostante un forte legame emotivo con lo Stato di Israele, che ha cercato di difendere nella crisi degli anni ’60, ma poi ha criticato negli anni ’70 e maggiormente negli anni della campagna ‘Pace in Israele’ e anni successivi. Infatti, tra il 1982 e

  19. Maxillofacial trauma resulting from terror in Israel.

    Science.gov (United States)

    Ringler, Doron; Einy, Shmuel; Giveon, Adi; Goldstein, Liab; Peleg, Kobi

    2007-01-01

    During a 33 month period, maxillofacial injuries resulting from terrorist attacks in Israel were compared with non-terror trauma maxillofacial injuries. Files of patients hospitalized from October 1, 2000 to June 30, 2003 were obtained from the Israel National Trauma Registry. Data were evaluated and compared with a hospitalized non-terror related trauma population within the same period. A literature survey was also conducted. Terror casualties totaled 1,811. In 493 patients with facial injuries, 322 had soft facial tissue injuries (excluding eyes and ears), and 104 had hard tissue injuries of the maxillofacial complex. A significantly higher prevalence was found in terror casualties (explosions and gunshots) compared with non-terror related casualties. Most suffered multiple injuries. Maxillofacial terror casualties experience a unique epidemiology, with more severe injuries and higher prevalence of soft and hard tissue injuries. Preparedness and awareness to the unique pattern of injuries are needed when terrorists strike.

  20. Hyperinflation in Brazil, Israel, and Nicaragua revisited

    OpenAIRE

    Szybisz, M A; Szybisz, L.

    2016-01-01

    The aim of this work is to address the description of hyperinflation regimes in economy. The spirals of hyperinflation developed in Brazil, Israel, and Nicaragua are revisited. This new analysis of data indicates that the episodes occurred in Brazil and Nicaragua can be understood within the frame of the model available in the literature, which is based on a nonlinear feedback (NLF) characterized by an exponent $\\beta>0$. In the NLF model the accumulated consumer price index carries a finite ...

  1. Hard Fighting: Israel in Lebanon and Gaza

    Science.gov (United States)

    2011-01-01

    different and newer conceptual methods. He is particularly fond of the French philosophers Gilles Deleuze and Felix Guattari, authors of the books “Anti... Deleuze -Guattari theory, which was formulated as a philosophy of resistance and liberation and was influenced by the student revolt in France in 1968...90–91 for hybrid warfare, 145–146, 161 defense budget (Israel), 18–19 Deif, Muhammad, 107 Deleuze , Gilles, 30 Deleuze -Guattari theory, 30 deterrence

  2. Israel: New history and post zionist cinema

    Directory of Open Access Journals (Sweden)

    Sheila Schvarzman

    2013-12-01

    Full Text Available This article discusses a cultural and political movement that seeks, by reviewing the history of the creation of Israel, to replace recognition of the Palestinians as well as the responsibility for their exile/deportation. Duty of memory and duty of recognition in which Israeli cinema is engaged, and to which filmmaker Eyal Sivan proposes constitute an archive with testimony of the perpetrators. Not only Palestinian victims, but especially Israeli perpetrators, questioning, too, the forms of documentary. 

  3. Pediatric allergy and immunology in Israel.

    Science.gov (United States)

    Geller-Bernstein, Carmi; Etzioni, Amos

    2013-03-01

    After the geographic and sociodemographic settings as well as the health care in Israel are briefly described, the scope of pediatric allergy and immunology in Israel is presented. This includes specific disorders commonly encountered, the environment that induces symptoms, the specialists who treat them, and the common challenges of patients, parents, doctors, and allied health personnel who collaborate to manage the maladies and patient care. Allergies usually affect some overall 15-20% of the pediatric population. The main allergens are inhaled, ingested, or injected (insects stings). Generally, the incidence of the various allergens affecting children in Israel, is similar to other parts of the Western world. Owing to the high consanguinity rate in the Israeli population, the prevalence of the various immunodeficiency conditions (in the adaptive as well as the innate system) is higher than that reported worldwide. Pediatric allergists/immunologists also treat autoimmune disorders affecting the pediatric group. Pediatric allergy and clinical immunology are not separate specialties. The 25 specialists who treat children with allergic/immunologic diseases have undergone a basic training in Pediatrics. They also received an additional 2-yr training in allergy and clinical immunology and then have to pass the board examinations. They work mainly in pediatric allergy units, in several hospitals that are affiliated to the five medical schools in the country. Aside from clinical work, most of the centers are also heavily involved in clinical and basic research in allergy and immunology.

  4. Die oorsprong van Israel volgens resente navorsing

    Directory of Open Access Journals (Sweden)

    N. van der Westhuizen

    1992-06-01

    Full Text Available A debate regarding the origin of Israel gave rise to much controversy which developed during the twenties. This debate saw an upsurge of interest during the sixties and seventies. Researchers identified themselves with three schools of thought. In this article negative as well as positive elements in the various schools are focused on. Consensus has been reached by researchers that the greatest obstacle in the way of the reconstruction of Israel's early history is the lack of verifiable sources. This study has looked for a new key, i.e. the creation of a broad scenario of the life in Canaan during the transition of the Late Bronze Age to the Iron Age 1. If such a scenario could be reconstructed as correctly as possible, it would be possible to establish the conditions of Israel’s origins. This study intends to play an elucidating role, illustrating the ways in which the people of Canaan lived and worked in the Late Bronze Age and Iron Age, for it was under these circumstances that Israel had its origins.

  5. Heat-Stress Regions in Israel

    Science.gov (United States)

    Becker, S.

    The data of 20 climatic stations have been examined to determine heat-stress regions in Israel. The data was interpolated and a model was developed for the calculation of direct and diffuse solar radiation. Thermal perception was calculated according to the energy-balance model of man which considers all relevant energy fluxes affecting the human thermo-regulatory system. It is based on the `Comfort Equation' of Fanger (1972) and the `Klima-Michel-Modell' of Jendritzky et al. (1990). Earlier approaches for the assessment of thermal environmental conditions have been done by Sohar (1980), based on the discomfort index. The average daily duration of severe heat stress which a person is exposed to during various activities in summer months has been analyzed in order to classify the thermal environmental conditions in Israel. Statistical evaluations have led to six heat-stress clusters and regions, respectively. A model calculating the spatial development of climatic data between two measuring stations was set up and served to determine the location of the distinctions between the regions. The resulting heat-stress map shows the different heat-stress regions in Israel. The regions are characterized by graphs that show the average monthly duration of light, medium and severe heat-stress. The average duration of severe heat-stress varies in July from approximately 3 hours along the coastal strip and in the higher mountain regions to approximately 13 hours in the Arava.

  6. [Healthcare for migrant workers in Israel].

    Science.gov (United States)

    Fried, Mordechai

    2003-06-01

    An estimated 300.000 migrant workers are currently living in Israel, which is about 5% of the general population. More then half of this population is undocumented and have very limited access to public health care. Due to the financial difficulties within the Israel's public health system, the entity is unable to deal with the needs of migrant workers. Hence, when these migrant workers need inpatient care, hospitals have to bear the costs and this situation creates a divergence between medical and economic considerations. The open clinic of "Physicians for Human Rights", which is operated by volunteer physicians and nurses, is able to provide medical aid for mild and transient illnesses, but not for chronic diseases. Israeli physicians are regularly confronted with ethical issues, regarding the therapy they would like to provide to undocumented migrant workers, but are unable to do so. In Europe, undocumented migrant workers have better access to public health care than in Israel. The Israeli public health system should permit all migrant workers to insure themselves at affordable prices, or another inexpensive insurance system should be created for them.

  7. Spectrum and Bethe-Salpeter amplitudes of $\\Omega$ baryons from lattice QCD

    CERN Document Server

    Liang, Jian; Chen, Ying; Chiu, Wei-Feng; Gong, Ming; Liu, Chuan; Liu, Yu-Bin; Liu, Zhaofeng; Ma, Jian-Ping; Zhang, Jian-Bo

    2015-01-01

    The $\\Omega$ baryons with $J^P=3/2^\\pm, 1/2^\\pm$ are studied on the lattice in the quenched approximation. Their mass levels are ordered as $M_{3/2^+}Bethe-Salpeter amplitudes of $\\Omega(3/2^+)$ and $\\Omega(1/2^+)$ and find there is a radial node for the $\\Omega(1/2^+)$ Bethe-Salpeter amplitude, which may imply that $\\Omega(1/2^+)$ is an orbital excitation of $\\Omega$ baryons as a member of the $(D,L_N^P)=(70,0_2^+)$ supermultiplet in the $SU(6)\\bigotimes O(3)$ quark model description. Our results are helpful for identifying the quantum number of experimentally observed $\\Omega$ states.

  8. The Beer/Bethe/Uexküll paper (1899) and misinterpretations surrounding 'vitalistic behaviorism'.

    Science.gov (United States)

    Mildenberger, Florian

    2006-01-01

    In the history of behaviorism the paper of the three physiologists Theodor Beer, Albrecht Bethe and Jakob von Uexküll from 1899 plays an important role. Many researchers were influenced by this paper and identified it as fundamental for objective psychological research. But during the period of its adoption (1900-1925) psychologists did not notice that Beer, Bethe and Uexküll had distanced themselves from their own paper, because it had been ignored in physiological and biological discussions. Moreover, one of the three (Beer) had to resign from the scientific community because of private scandal and another one (Uexküll) changed all of his views and left the base of objective science for subjective vitalism. However, this did not change his adoption of behaviorism.

  9. Transition electromagnetic form factor and current conservation in the Bethe-Salpeter approach

    CERN Document Server

    Carbonell, J

    2015-01-01

    The transition form factor for electrodisintegration of a two-body bound system is calculated in the Bethe-Salpeter framework. For the initial (bound) and the final (scattering) states, we use our solutions of the Bethe-Salpeter equation in Minkowski space which were first obtained recently. The gauge invariance, which manifests itself in the conservation of the transition electromagnetic current Jq = 0, is studied numerically. It results from a cancellation between the plane wave and the final state interaction contributions. This cancellation takes place only if the initial bound state BS amplitude, the final scattering state and the operator of electromagnetic current are strictly consistent with each other, that is if they are found in the same dynamical framework. A reliable result for the transition form factor can be obtained in this case only.

  10. Solving Bethe-Salpeter equation for two fermions in Minkowski space

    CERN Document Server

    Carbonell, J

    2010-01-01

    The method of solving the Bethe-Salpeter equation in Minkowski space, which we developed previously for spinless particles, is extended to a system of two fermions. The method is based on the Nakanishi integral representation of the amplitude and on projecting the equation on the light-front plane. The singularities in the projected two-fermion kernel are regularized without modifying the original Bethe-Salpeter amplitudes. The numerical solutions for the J=0 bound state with the scalar, pseudoscalar and massless vector exchange kernels are found. The stability of the scalar and positronium states without vertex form factor is discussed. Binding energies are in close agreement with the Euclidean results. Corresponding amplitudes in Minkowski space are obtained.

  11. Current conservation in electrodisintegration of a bound system in the Bethe-Salpeter approach

    CERN Document Server

    Karmanov, V A

    2014-01-01

    Using our solutions of the Bethe-Salpeter equation with OBE kernel in Minkowski space both for the bound and scattering states, we calculate the transition form factors for electrodisintegration of the bound system which determine the electromagnetic current J of this process. Special emphasis is put on verifying the gauge invariance which should manifest itself in the current conservation. We find that for any value of the momentum transfer q the contributions of the plane wave and the final state interaction to the quantity J.q cancel each other thus providing J.q=0. However, this cancellation is obtained only if the initial Bethe-Salpeter amplitude (bound state), the final one (scattering state) and the current operator are strictly consistent with each other. A reliable result for the transition form factor can be found only in this case.

  12. Algebraic Bethe ansatz for the quantum group invariant open XXZ chain at roots of unity

    Science.gov (United States)

    Gainutdinov, Azat M.; Nepomechie, Rafael I.

    2016-08-01

    For generic values of q, all the eigenvectors of the transfer matrix of the Uq sl (2)-invariant open spin-1/2 XXZ chain with finite length N can be constructed using the algebraic Bethe ansatz (ABA) formalism of Sklyanin. However, when q is a root of unity (q =e iπ / p with integer p ≥ 2), the Bethe equations acquire continuous solutions, and the transfer matrix develops Jordan cells. Hence, there appear eigenvectors of two new types: eigenvectors corresponding to continuous solutions (exact complete p-strings), and generalized eigenvectors. We propose general ABA constructions for these two new types of eigenvectors. We present many explicit examples, and we construct complete sets of (generalized) eigenvectors for various values of p and N.

  13. ODE/IM correspondence and Bethe ansatz for affine Toda field equations

    CERN Document Server

    Ito, Katsushi

    2015-01-01

    We study the linear problem associated with modified affine Toda field equation for the Langlands dual $\\hat{\\mathfrak{g}}^\\vee$, where $\\hat{\\mathfrak{g}}$ is an untwisted affine Lie algebra. The connection coefficients for the asymptotic solutions of the linear problem correspond to the Q-functions for $\\mathfrak{g}$-type quantum integrable models. The $\\psi$-system for the solutions associated with the fundamental representations of $\\mathfrak{g}$ leads to Bethe ansatz equations associated with the affine Lie algebra $\\hat{\\mathfrak{g}}$. We also study the $A^{(2)}_{2r}$ affine Toda field equation in massless limit in detail and find its Bethe ansatz equations as well as T-Q relations.

  14. Zero-Temperature Limit of a Convergent Algorithm to Minimize the Bethe Free Energy

    CERN Document Server

    Werner, Tomas

    2011-01-01

    After the discovery that fixed points of loopy belief propagation coincide with stationary points of the Bethe free energy, several researchers proposed provably convergent algorithms to directly minimize the Bethe free energy. These algorithms were formulated only for non-zero temperature (thus finding fixed points of the sum-product algorithm) and their possible extension to zero temperature is not obvious. We present the zero-temperature limit of the double-loop algorithm by Heskes, which converges a max-product fixed point. The inner loop of this algorithm is max-sum diffusion. Under certain conditions, the algorithm combines the complementary advantages of the max-product belief propagation and max-sum diffusion (LP relaxation): it yields good approximation of both ground states and max-marginals.

  15. ODE/IM correspondence and Bethe ansatz for affine Toda field equations

    Directory of Open Access Journals (Sweden)

    Katsushi Ito

    2015-07-01

    Full Text Available We study the linear problem associated with modified affine Toda field equation for the Langlands dual gˆ∨, where gˆ is an untwisted affine Lie algebra. The connection coefficients for the asymptotic solutions of the linear problem are found to correspond to the Q-functions for g-type quantum integrable models. The ψ-system for the solutions associated with the fundamental representations of g leads to Bethe ansatz equations associated with the affine Lie algebra gˆ. We also study the A2r(2 affine Toda field equation in massless limit in detail and find its Bethe ansatz equations as well as T–Q relations.

  16. Calculation of the relativistic Bethe logarithm in the two-center problem

    CERN Document Server

    Korobov, Vladimir I; Karr, Jean-Philippe

    2013-01-01

    We present a variational approach to evaluate relativistic corrections of order \\alpha^2 to the Bethe logarithm for the ground electronic state of the Coulomb two center problem. That allows to estimate the radiative contribution at m\\alpha^7 order in molecular-like three-body systems such as hydrogen molecular ions H_2^+ and HD^+, or antiprotonic helium atoms. While we get 10 significant digits for the nonrelativistic Bethe logarithm, calculation of the relativistic corrections is much more involved especially for small values of bond length R. We were able to achieve a level of 3-4 significant digits starting from R=0.2 bohr, that will allow to reach 10^{-10} relative uncertainty on transition frequencies.

  17. Calculation of the relativistic Bethe logarithm in the two-center problem

    Science.gov (United States)

    Korobov, Vladimir I.; Hilico, L.; Karr, J.-Ph.

    2013-06-01

    We present a variational approach to evaluate relativistic corrections of order α2 to the Bethe logarithm for the ground electronic state of the Coulomb two-center problem. That allows us to estimate the radiative contribution at mα7 order in molecular-like three-body systems such as hydrogen molecular ions H2+ and HD+ or antiprotonic helium atoms. While we get ten significant digits for the nonrelativistic Bethe logarithm, calculation of the relativistic corrections is much more involved, especially for small values of bond length R. We were able to achieve a level of three to four significant digits starting from R=0.2 bohr, which will allow us to reach 10-10 relative uncertainty on transition frequencies.

  18. Quantitative studies of the homogeneous Bethe-Salpeter Equation in Minkowski space

    CERN Document Server

    Frederico, Tobias; Viviani, Michele

    2013-01-01

    The Bethe-Salpeter Equation for a bound system, composed by two massive scalars exchanging a massive scalar, is quantitatively investigated in ladder approximation, within the Nakanishi integral representation approach. For the S-wave case, numerical solutions with a form inspired by the Nakanishi integral representation, have been calculated. The needed Nakanishi weight functions have been evaluated by solving two different eigenequations, obtained directly from the Bethe-Salpeter equation applying the Light-Front projection technique. A remarkable agreement, in particular for the eigenvalues, has been achieved, numerically confirming that the Nakanishi uniqueness theorem for the weight functions, demonstrated in the context of the perturbative analysis of the multi-leg transition amplitudes and playing a basic role in suggesting one of the two adopted eigenequations, can be extended to a non perturbative realm. The detailed, quantitative studies are completed by presenting both probabilities and Light-Front...

  19. Solving the inhomogeneous Bethe-Salpeter Equation in Minkowski space: the zero-energy limit

    CERN Document Server

    Frederico, T; Viviani, M

    2015-01-01

    For the first time, the inhomogeneous Bethe-Salpeter Equation for an interacting system, composed by two massive scalars exchanging a massive scalar, is numerically investigated in ladder approximation, directly in Minkowski space, by using an approach based on the Nakanishi integral representation. In this paper, the limiting case of zero-energy states is considered, extending the approach successfully applied to bound states presented in Phys. Rev. D 89, (2014) 016010, where the Nakanishi integral representation has been exploited for solving the homogeneous Bethe-Salpeter Equation. The numerical values of scattering lengths, evaluated by using two different integral equations that stem within the Nakanishi framework, are compared with the analogous quantities recently obtained, within a totally different framework. Moreover, relevant functions, like the Nakanishi weight functions and the distorted part of the zero-energy Light-front wave functions are also presented. Interestingly, a highly non trivial iss...

  20. A new integral representation for the scalar products of Bethe states for the XXX spin chain

    Science.gov (United States)

    Kazama, Yoichi; Komatsu, Shota; Nishimura, Takuya

    2013-09-01

    Based on the method of separation of variables due to Sklyanin, we construct a new integral representation for the scalar products of the Bethe states for the SU(2) XXX spin 1/2 chain obeying the periodic boundary condition. Due to the compactness of the symmetry group, a twist matrix must be introduced at the boundary in order to extract the separated variables properly. Then by deriving the integration measure and the spectrum of the separated variables, we express the inner product of an on-shell and an off-shell Bethe states in terms of a multiple contour integral involving a product of Baxter wave functions. Its form is reminiscent of the integral over the eigenvalues of a matrix model and is expected to be useful in studying the semi-classical limit of the product.

  1. Algebraic Bethe ansatz for the quantum group invariant open XXZ chain at roots of unity

    CERN Document Server

    Gainutdinov, Azat M

    2016-01-01

    For generic values of q, all the eigenvectors of the transfer matrix of the U_q sl(2)-invariant open spin-1/2 XXZ chain with finite length N can be constructed using the algebraic Bethe ansatz (ABA) formalism of Sklyanin. However, when q is a root of unity (q=exp(i pi/p) with integer p>1), the Bethe equations acquire continuous solutions, and the transfer matrix develops Jordan cells. Hence, there appear eigenvectors of two new types: eigenvectors corresponding to continuous solutions (exact complete p-strings), and generalized eigenvectors. We propose general ABA constructions for these two new types of eigenvectors. We present many explicit examples, and we construct complete sets of (generalized) eigenvectors for various values of p and N.

  2. Correlation functions of the spin chains. Algebraic Bethe Ansatz approach; Fonctions de correlation des chaines de spin. Approche de l'ansatz de Bethe algebrique

    Energy Technology Data Exchange (ETDEWEB)

    Kitanine, N

    2007-09-15

    Spin chains are the basic elements of integrable quantum models. These models have direct applications in condense matter theory, in statistical physics, in quantum optics, in field theory and even in string theory but they are also important because they enable us to solve, in an exact manner, non-perturbative phenomena that otherwise would stay unresolved. The method described in this work is based on the algebraic Bethe Ansatz. It is shown how this method can be used for the computation of null temperature correlation functions of the Heisenberg 1/2 spin chain. The important point of this approach is the solution of the inverse quantum problem given by the XXZ spin chain. This solution as well as a simple formulae for the scalar product of the Bethe states, have enabled us to get the most basic correlation functions under the form of multiple integrals. The formalism of multiple integrals open the way for asymptotic analysis for a few physical quantities like the probability of vacuum formation. It is worth noticing that this formalism can give exact results for two-point functions that are the most important correlation functions for applications. A relationship has been discovered between these multiple integrals and the sum of the form factors. The results have been extended to dynamical correlation functions. (A.C.)

  3. Solutions of Bethe-Salpeter and Light-Front equations with cross-ladder kernel

    CERN Document Server

    Carbonell, J

    2005-01-01

    By method developed in our previous paper we solve the Bethe-Salpeter (BS) equation for the kernel given by sum of ladder and cross-ladder exchanges. We solve also corresponding equation in light-front dynamics (LFD), where we add the time-ordered stretched boxes. Cross-ladder contribution is large and attractive, whereas the influence of stretched boxes is negligible. Both approaches -- BS and LFD -- give very close results.

  4. An exact solution on the ferromagnetic Face-Cubic spin model on a Bethe lattice

    OpenAIRE

    Ohanyan, V. R.; Ananikyan, L. N.; Ananikian, N. S.

    2006-01-01

    The lattice spin model with $Q$--component discrete spin variables restricted to have orientations orthogonal to the faces of $Q$-dimensional hypercube is considered on the Bethe lattice, the recursive graph which contains no cycles. The partition function of the model with dipole--dipole and quadrupole--quadrupole interaction for arbitrary planar graph is presented in terms of double graph expansions. The latter is calculated exactly in case of trees. The system of two recurrent relations wh...

  5. Numerical Studies of the Zero-Energy Bethe-Salpeter Equation in Minkowski Space

    Science.gov (United States)

    Viviani, Michele; Frederico, Tobias; Salmè, Giovanni

    2015-09-01

    The inhomogeneous Bethe-Salpeter equation describing the zero-energy scattering of a system composed by two massive scalars exchanging a massive scalar is numerically investigated in ladder approximation, directly in Minkowski space. The solution is obtained by using the Nakanishi integral representation, as performed in Frederico et al. (Phys Rev D 89:016010, 2014) where the method was successfully applied to bound states. The scattering lengths are quantitatively investigated and the results compared with the corresponding ones present in literature.

  6. Calculation of Spin Observables for Proton-Proton Elastic Scattering in the Bethe-Salpeter Equation

    CERN Document Server

    Kinpara, Susumu

    2015-01-01

    Bethe-Salpeter equation is applied to $p$-$p$ elastic scattering. The observables of spin are calculated in the framework of the M matrix using the two-body interaction potential. The parameter of the pseudovector coupling constant is adjusted so as to reproduce the spin singlet part. It is shown that the spin rotation $R(\\theta)$ and $A(\\theta)$ are improved by the resonance effect for ${}^{\\rm 1}S_{\\rm 0}$.

  7. 77 FR 64767 - Airworthiness Directives; Gulfstream Aerospace LP (Type Certificate Previously Held by Israel...

    Science.gov (United States)

    2012-10-23

    ... Aerospace LP (Type Certificate Previously Held by Israel Aircraft Industries, Ltd.) Airplanes AGENCY... airworthiness directive (AD) for certain Gulfstream Aerospace LP (Type Certificate previously held by Israel... Certificate previously held by Israel Aircraft Industries, Ltd.) Model Galaxy and Gulfstream 200...

  8. Gluon bound state and asymptotic freedom derived from the Bethe--Salpeter equation

    CERN Document Server

    Fukamachi, Hitoshi; Nishino, Shogo; Shinohara, Toru

    2016-01-01

    In this paper we study the two-body bound states for gluons and ghosts in a massive Yang-Mills theory which is obtained by generalizing the ordinary massless Yang-Mills theory in a manifestly Lorentz covariant gauge. First, we give a systematic derivation of the coupled Bethe-Salpeter equations for gluons and ghosts by using the Cornwall-Jackiw-Tomboulis effective action of the composite operators within the framework of the path integral quantization. Then, we obtain the numerical solutions for the Bethe-Salpeter amplitude representing the simultaneous bound states of gluons and ghosts by solving the homogeneous Bethe-Salpeter equation in the ladder approximation. We study how the inclusion of ghosts affects the two-gluon bound states in the cases of the standing and running gauge coupling constant. Moreover, we show explicitly that the approximate solutions obtained for the gluon-gluon amplitude are consistent with the ultraviolet asymptotic freedom signaled by the negative $\\beta$ function.

  9. Symmetry preserving truncations of the gap and Bethe-Salpeter equations

    Science.gov (United States)

    Binosi, Daniele; Chang, Lei; Papavassiliou, Joannis; Qin, Si-Xue; Roberts, Craig D.

    2016-05-01

    Ward-Green-Takahashi (WGT) identities play a crucial role in hadron physics, e.g. imposing stringent relationships between the kernels of the one- and two-body problems, which must be preserved in any veracious treatment of mesons as bound states. In this connection, one may view the dressed gluon-quark vertex, Γμa , as fundamental. We use a novel representation of Γμa , in terms of the gluon-quark scattering matrix, to develop a method capable of elucidating the unique quark-antiquark Bethe-Salpeter kernel, K , that is symmetry consistent with a given quark gap equation. A strength of the scheme is its ability to expose and capitalize on graphic symmetries within the kernels. This is displayed in an analysis that reveals the origin of H -diagrams in K , which are two-particle-irreducible contributions, generated as two-loop diagrams involving the three-gluon vertex, that cannot be absorbed as a dressing of Γμa in a Bethe-Salpeter kernel nor expressed as a member of the class of crossed-box diagrams. Thus, there are no general circumstances under which the WGT identities essential for a valid description of mesons can be preserved by a Bethe-Salpeter kernel obtained simply by dressing both gluon-quark vertices in a ladderlike truncation; and, moreover, adding any number of similarly dressed crossed-box diagrams cannot improve the situation.

  10. Advances in solving the two-fermion homogeneous Bethe-Salpeter equation in Minkowski space

    CERN Document Server

    de Paula, W; Salmè, G; Viviani, M

    2016-01-01

    Actual solutions of the Bethe-Salpeter equation for a two-fermion bound system are becoming available directly in Minkowski space, by virtue of a novel technique, based on the so-called Nakanishi integral representation of the Bethe-Salpeter amplitude and improved by expressing the relevant momenta through light-front components, i.e. $k^\\pm=k^0 \\pm k^3$. We solve a crucial problem that widens the applicability of the method to real situations by providing an analytically exact treatment of the singularities plaguing the two-fermion problem in Minkowski space, irrespective of the complexity of the irreducible Bethe-Salpeter kernel. This paves the way for feasible numerical investigations of relativistic composite systems, with any spin degrees of freedom. We present a thorough comparison with existing numerical results, evaluated in both Minkowski and Euclidean space, fully corroborating our analytical treatment, as well as fresh light-front amplitudes illustrating the potentiality of non perturbative calcula...

  11. Symmetry preserving truncations of the gap and Bethe-Salpeter equations

    Energy Technology Data Exchange (ETDEWEB)

    Binosi, Daniele; Chang, Lei; Papavassiliou, Joannis; Qin, Si-Xue; Roberts, Craig D.

    2016-05-01

    Ward-Green-Takahashi (WGT) identities play a crucial role in hadron physics, e.g. imposing stringent relationships between the kernels of the one-and two-body problems, which must be preserved in any veracious treatment of mesons as bound states. In this connection, one may view the dressed gluon-quark vertex, Gamma(alpha)(mu), as fundamental. We use a novel representation of Gamma(alpha)(mu), in terms of the gluon-quark scattering matrix, to develop a method capable of elucidating the unique quark-antiquark Bethe-Salpeter kernel, K, that is symmetry consistent with a given quark gap equation. A strength of the scheme is its ability to expose and capitalize on graphic symmetries within the kernels. This is displayed in an analysis that reveals the origin of H-diagrams in K, which are two-particle-irreducible contributions, generated as two-loop diagrams involving the three-gluon vertex, that cannot be absorbed as a dressing of Gamma(alpha)(mu) in a Bethe-Salpeter kernel nor expressed as a member of the class of crossed-box diagrams. Thus, there are no general circumstances under which the WGT identities essential for a valid description of mesons can be preserved by a Bethe-Salpeter kernel obtained simply by dressing both gluon-quark vertices in a ladderlike truncation; and, moreover, adding any number of similarly dressed crossed-box diagrams cannot improve the situation.

  12. A Generalized Uhlenbeck and Beth Formula for the Third Cluster Coefficient

    CERN Document Server

    Larsen, Sigurd Yves; Amaya-Tapia, Alejandro

    2016-01-01

    Relatively recently (A. Amaya-Tapia, S. Y. Larsen and M. Lassaut. Ann. Phys., vol. 306 (2011) 406), we presented a formula for the evaluation of the third Bose fugacity coefficient - leading to the third virial coefficient - in terms of three-body eigenphase shifts, for particles subject to repulsive forces. An analytical calculation for a 1-dim. model, for which the result is known, confirmed the validity of this approach. We now extend the formalism to particles with attractive forces, and therefore must allow for the possibility that the particles have bound states. We thus obtain a true generalization of the famous formula of Uhlenbeck and Beth (G.E. Uhlenbeck and E. Beth. Physica, vol. 3 (1936) 729; E. Beth and G.E. Uhlenbeck. ibid, vol.4 (1937) 915) (and of Gropper (L. Gropper. Phys. Rev. vol. 50 (1936) 963; ibid vol. 51 (1937) 1108)) for the second virial. We illustrate our formalism by a calculation, in an adiabatic approximation, of the third cluster in one dimension, using McGuire's model as in our ...

  13. 77 FR 38584 - Oil and Gas Trade Mission to Israel-Clarification and Amendment

    Science.gov (United States)

    2012-06-28

    ..., the World Energy Council estimates Israel's shale deposits could ultimately yield as many as 250...&highlight= . ``Oil Shale Country Notes: Israel.'' World Energy Council for Sustainable Energy....

  14. Scalar products of Bethe vectors in models with {\\mathfrak{gl}}(2| 1) symmetry 1. Super-analog of Reshetikhin formula

    Science.gov (United States)

    Hutsalyuk, A.; Liashyk, A.; Pakuliak, S. Z.; Ragoucy, E.; Slavnov, N. A.

    2016-11-01

    We study the scalar products of Bethe vectors in integrable models solvable by the nested algebraic Bethe ansatz and possessing {gl}(2| 1) symmetry. Using explicit formulas of the monodromy matrix entries’ multiple actions onto Bethe vectors we obtain a representation for the scalar product in the most general case. This explicit representation appears to be a sum over partitions of the Bethe parameters. It can be used for the analysis of scalar products involving on-shell Bethe vectors. As a by-product, we obtain a determinant representation for the scalar products of generic Bethe vectors in integrable models with {gl}(1| 1) symmetry. Dedicated to the memory of Petr Petrovich Kulish.

  15. The solar energy in Israel; L'energie solaire en Israel

    Energy Technology Data Exchange (ETDEWEB)

    Bocquet, L

    2004-05-01

    The solar energy is an important characteristic of Israel, listed in its history and its development. This document presents the solar energy applications in the country in many domains: the solar energy for residential houses, the applications in the agricultural and industrial sectors and the research and development programs. (A.L.B.)

  16. Promouvoir le francais: Norvege, Chine, Israel (Promoting French: Norway, China, Israel).

    Science.gov (United States)

    Grenet, Jean-Jack

    1994-01-01

    Strategies for promoting French and French language instruction are described. In Norway, a French popular music promotion has been launched cooperatively by record producers in both countries; a Chinese program links like organizations in the two countries; and in Israel, an initiative focuses on French song. (MSE)

  17. Historical Museums in Israel: Semiotics of Culture

    Directory of Open Access Journals (Sweden)

    Gabriel Mayer

    2017-01-01

    Full Text Available Tiny by physical size, the State of Israel retains some of the world’s most important cultural treasures, along with many other great cultural institutions. Archeological treasures have yielded much information as far as biblical history and have been well adapted to a Zionist narrative by both the Jewish press and international news organizations, such as the New York Times whose archives are replete with reports of Jewish history being dug up by the Jewish people. Once the State of Israel gained independence in 1948, the course was set for the development of historical museums whose discourse would reflect the most significant events in Jewish history, most especially the Holocaust and the state of constant warfare that continues to imbue the cultural consciousness of its citizens. In this paper we outline, through categorization, the various historical museums, which are currently operating. Furthermore, this article hopes to shed some light upon the cultural sensibilities conveyed through these institutions. This paper is about Israeli culture, mythology, and collective needs, as formed by and informed through a variety of historical museums. The working assumption is that in a historical museum culture is partially formed and at the same time the culture is influencing the contents and narratives on display inside the museum. It should be clear from the start that the discussion is held about Israeli museums as viewed by a Jewish population and created by and for Jews. Notwithstanding the multifaceted collective of Israeli society, this work is confined to and circumscribed by this demarcation. In the following sections, I intend to provide an explanation for this viewpoint from a historical perspective and also provide a framework of what constitutes a historical museum and justify the methodology of its employ. This will be followed by a discussion of the main categorical types of historical museums present in Israel, and finally a

  18. Israel,China to Strengthen Water Technology Cooperation

    Institute of Scientific and Technical Information of China (English)

    Hu Wenxiu

    2011-01-01

    @@ To turn desert into oasis is the top priority of the water-poor Israel.The country has made miraculous achievements in turning arid land into fertile agricultural farmland.Now Israel hopes to strengthen cooperation with China in water resources and technology and jointly meet the global water challenge.

  19. Educational Travel to Israel in the Era of Globalization

    Science.gov (United States)

    Ezrachi, Elan

    2015-01-01

    Travel to Israel has been a central feature of Jewish and Zionist education yet it is time for this educational travel to be examined in the context of current cultural trends of travel and transnational experiences. The Jewish educational community has not yet internalized the impact of global trends on the field of travel to Israel from a…

  20. Evaluation Study of Day-Care Centers in Israel.

    Science.gov (United States)

    Korazim, Malka; Trachtenberg, Silvia

    In recent years, day-care centers for the elderly have been playing an increasingly important role in the community service system for the elderly in Israel. ESHEL, one of the leading agencies in developing day-care services in Israel initiated a comprehensive evaluation study of day-care centers to identify variations among different types of…

  1. Latino migrants in the Jewish state: undocumented lives in Israel

    NARCIS (Netherlands)

    B. Kalir

    2010-01-01

    In the 1990s, thousands of non-Jewish Latinos arrived in Israel as undocumented immigrants. Based on his fieldwork in South America and Israel, Barak Kalir follows these workers from their decision to migrate to their experiences finding work, establishing social clubs and evangelical Christian chur

  2. Human Rights Education in Israel: Four Types of Good Citizenship

    Science.gov (United States)

    Agbaria, Ayman K.; Katz-Pade, Revital

    2016-01-01

    This article examines the involvement of civil society organizations in human rights education (HRE) in Israel. Focussing on the educational programs of the Association for Civil Rights in Israel (ACRI), as a qualitative instrumental case study, this article examines the conceptions of good citizenship embedded in these programs. Specifically, the…

  3. Criminal Mediation for Minors in Israel

    Directory of Open Access Journals (Sweden)

    Isack Kandel

    2007-01-01

    Full Text Available Mediation was introduced in Canada in 1974 in order to handle a crime of robbery and vandalization committed by adolescents. After mediation, these adolescents agreed to apologize to each of their victims and pay restitution. Several countries (Canada, England, Finland, and the U.S. have now made this opportunity available in the cases of young offenders. This review describes the process in the south of Israel. We find this method very powerful, but further studies are needed. Due to resource problems, it will not become mainstream in the near future.

  4. El software agropecuario en Europa e Israel

    OpenAIRE

    Giorgini, Diana A.; Marchiori, O. E.; Giorgini, H. J.; Sierra, Eduardo Mario

    1995-01-01

    p.213-218 En los últimos años ha aparecido una gran variedad de programas de computación diseñados específicamente para uso agropecuario, dando nacimiento a lo que se ha dado en llamar A grosoftware. La disponibilidad de información proveniente de Europa e Israel ha permitido trazar un panorama detallado del estado actual y tendencia de esta importante actividad que parece destinada a modificar sustancialmente la forma de operación y control de la totalidad del sistema productivo agropecua...

  5. The demand for electricity in Israel

    Energy Technology Data Exchange (ETDEWEB)

    Beenstock, M. [Department of Economics, Hebrew University of Jerusalem, Mount Scopus, 91905 Jerusalem (Israel); Goldin, E.; Nabot, D. [EG Consulting, Hameasef 11, Jerusalem (Israel)

    1999-04-01

    Quarterly data for Israel are used to compare and contrast three dynamic econometric methodologies for estimating the demand for electricity by households and industrial companies. These are the Dynamic Regression Model and two approaches to cointegration (OLS and Maximum Likelihood). Since we find evidence of seasonal unit roots in the data we also test for seasonal cointegration. We find that the scale elasticities are similar in all three approaches but the OLS price elasticities are considerably lower. Moreover, OLS suggests non-cointegration. The paper concludes by stochastically simulating the DRMs to calculate upside-risk in electricity demand. (Copyright (c) 1999 Elsevier Science B.V., Amsterdam. All rights reserved.)

  6. Barriers Preventing Food Security in Israel, 2050

    Directory of Open Access Journals (Sweden)

    Yoav Gal

    2013-03-01

    Full Text Available The article highlights the benefits of adopting the practice of long-term planning with the aim of helping decision makers and politicians to include scenario thinking in the process of determining food security in Israel, 2050. This study addresses the question of food security, a step that is in contrast with agricultural planning considerations of the past that have mainly focused on maximizing profits or relied on a closed mathematical model. Two teams of experts identified production limitations affecting long-term planning and the ability to ensure food security under these conditions. It was found that there are five key factors important for the decision process: population, land, water, technology and international trade. The data show that today Israel imports a very large scale of virtual land and virtual water in terms of agricultural products. This means that the attention of the decision makers must be diverted from considerations of short-term profit to long-term food security.

  7. Hyperinflation in Brazil, Israel, and Nicaragua revisited

    Science.gov (United States)

    Szybisz, Martín A.; Szybisz, Leszek

    2017-01-01

    The aim of the present work is to address the description of hyperinflation regimens in economy. The spirals of hyperinflation developed in Brazil, Israel, and Nicaragua are revisited. This new analysis of data indicates that the episodes occurred in Brazil and Nicaragua can be understood within the frame of the model available in the literature, which is based on a nonlinear feedback (NLF) characterized by an exponent β > 0. In the NLF model the accumulated consumer price index carries a finite time singularity of the type 1 /(tc - t) (1 - β) / β determining a critical time tc at which the economy would crash. It is shown that in the case of Brazil the entire episode cannot be described with a unique set of parameters because the time series was strongly affected by a change of policy. This fact gives support to the "so called" Lucas critique, who stated that model's parameters usually change once policy changes. On the other hand, such a model is not able to provide any tc in the case of the weaker hyperinflation occurred in Israel. It is shown that in this case the fit of data yields β → 0. This limit leads to the linear feedback formulation which does not predict any tc. An extension for the NLF model is suggested.

  8. [The beginnings of orthopedic surgery in Israel].

    Science.gov (United States)

    Tauber, Chanan

    2013-08-01

    In early mandatory Israel, orthopedics was mainly conservative, The first modern orthopedic surgeon was Ernst Spira from Czechoslovakia who established an orthopedic service at the Beilinson Hospital in Petah Tikva and left in 1948 to establish the Orthopedic Department and the Rehabilitation Center in Tel Hashomer, which treated the War of Independence casualties including amputees and victims of spinal cord injuries. A second orthopedic department was opened in Tel Hashomer by Shmuel Weissman who left in 1961 to open the Orthopedic Department at the Ichilov hospital in Tel Aviv. Shmuel Weissman became the first Chairman of Orthopedic Surgery at the Tel Aviv University medical school. In 1955, Myer Makin opened a modern orthopedic department in the Hadassah Hospital in Jerusalem and the Alyn Hospital for crippled children. In 1951, Assaf Harofeh Hospital opened the Department of Orthopedic Surgery headed by Anatol Axer who specialized in the treatment and rehabilitation of polio patients. The majority of the second generation of orthopedic department directors was trained by these four surgeons. Major developments in the 1960s and 1970s were the introduction of the AO system revolutionizing fracture treatment from conservative to operative treatment, the advent of total hip and knee replacements, Harrington instrumentation in spinal surgery and arthroscopy were major advances in orthopedic patient care brought to Israel by the aforementioned second generation of orthopedic surgeons. Hand surgery became an independent subspecialty of orthopedics and was lead by the internationally renowned hand surgeon, Isidore Kessler.

  9. Neospora caninum in crows from Israel.

    Science.gov (United States)

    Salant, H; Mazuz, M L; Savitsky, I; Nasereddin, A; Blinder, E; Baneth, G

    2015-09-15

    A cross-sectional Neospora caninum seroprevalence study was performed on free ranging crows (Corvus cornix, Corvus monedula and Corvus splendens) from Israel in order to assess their exposure to this pathogen and evaluate their role as potential hosts or as sentinels of infection. Using the modified agglutination test (MAT) with a cutoff titer of 1:100, 30 out of 183 crows (16.4%) were found to be N. caninum seropositive. Positive results were validated and confirmed by the indirect fluorescent antibody test (IFAT). There was 100% agreement between tests when cut-off titers of 1:50 and 1:100 were applied for the IFAT and MAT, respectively. PCR analysis of brain extracts from all crows resulted in the detection of N. caninum DNA for the first time in crows belonging to two species, C. cornix and C. monedula. The high N. caninum seroprevalence in crows suggests that widespread exposure to infection with N. caninum exists especially in central and northern Israel and that crows may act as suitable markers for disease prevalence in the areas in which they are found.

  10. Electromagnetic form factor via Bethe-Salpeter amplitude in Minkowski space

    CERN Document Server

    Carbonell, J; Mangin-Brinet, M

    2008-01-01

    For a relativistic system of two scalar particles, we find the Bethe-Salpeter amplitude in Minkowski space and use it to compute the electromagnetic form factor. The comparison with Euclidean space calculation shows that the Wick rotation in the form factor integral induces errors which increase with the momentum transfer Q^2. At JLab domain (Q^2=10 GeV^2/c^2), they are about 30%. Static approximation results in an additional and more significant error. On the contrary, the form factor calculated in light-front dynamics is almost indistinguishable from the Minkowski space one.

  11. Solution of the Bethe-Salpeter equation in Minkowski space for a two fermion system

    CERN Document Server

    Carbonell, J

    2010-01-01

    The method of solving the Bethe-Salpeter equation in Minkowski space, developed previously for spinless particles, is extended to a system of two fermions. The method is based on the Nakanishi integral representation of the amplitude and on projecting the equation on the light-front plane. The singularities in the projected two-fermion kernel are regularized without modifying the original BS amplitudes. The numerical solutions for the J=0 bound state with the scalar, pseudoscalar and massless vector exchange kernels are found. Binding energies are in close agreement with the Euclidean results. Corresponding amplitudes in Minkowski space are obtained.

  12. Nested Bethe Ansatz for Spin Ladder Model with Open Boundary Conditions

    Institute of Scientific and Technical Information of China (English)

    WU Jun-Fang; ZHANG Chun-Min; YUE Rui-Hong; LI Run-Ling

    2005-01-01

    The nested Bethe ansatz (BA) method is applied to find the eigenvalues and the eigenvectors of the transfer matrix for spin-ladder model with open boundary conditions. Based on the reflection equation, we find the general diagonal solution, which determines the generalboundary interaction in the Hamiltonian. We introduce the spin-ladder model with open boundary conditions. By finding the solution K± of the reflection equation which determines the nontrivial boundary terms in the Hamiltonian, we diagonalize the transfer matrix of the spin-ladder model with open boundary conditions in the framework of nested BA.

  13. Bethe Ansatz solution of the small polaron with nondiagonal boundary terms

    CERN Document Server

    Karaiskos, Nikos; Frahm, Holger

    2013-01-01

    The small polaron with generic, nondiagonal boundary terms is investigated within the framework of quantum integrability. The eigenvalues of the model are extracted by using the fusion hierarchy of the transfer matrices and the corresponding Bethe Ansatz equations are presented. For particular values of the anisotropy parameter the fusion hierarchy truncates, giving rise to a set of functional relations for the transfer matrix. Exploiting the latter ones, the same set of eigenvalues is rederived, confirming our results. Finally, we comment on the eigenvectors of the model and explicitly compute the state with all sites unoccupied for arbitrary chain lengths.

  14. Instantaneous Bethe-Salpeter Equation and Its Analog: Breit-like Equation

    Institute of Scientific and Technical Information of China (English)

    CHANG Chao-Hsi; CHEN Jiao-Kai

    2005-01-01

    We take the (μ士e干) system as an example, but restrict ourselves to highlight the states with quantum number JP = 0-, to explore the different contents of the instantaneous Bethe-Salpeter (BS) equation and its analog,the relativistic version of Breit equation, by solving them exactly. The results show that the two equations are not equivalent, although they are analogous. Furthermore, since the Breit equation contains extra un-physical solutions,so we point out that it should be abandoned if one wishes to have an accurate description of the bound states for the instantaneous interacting binding systems.

  15. Isothermal vs. isentropic description of protoneutron stars in the Brueckner-Bethe-Goldstone theory

    CERN Document Server

    Burgio, G F

    2009-01-01

    We study the structure of hadronic protoneutron stars within the finite temperature Brueckner-Bethe-Goldstone theoretical approach. Assuming beta-equilibrated nuclear matter with nucleons and leptons in the stellar core, with isothermal or isentropic profile, we show that particle populations and equation of state are very similar. As far as the maximum mass is concerned, we find that its value turns out to be almost independent on T, while a slight decrease is observed in the isentropic case, due to the enhanced proton fraction in the high density range.

  16. Delta and Omega electromagnetic form factors in a Dyson-Schwinger/Bethe-Salpeter approach

    Energy Technology Data Exchange (ETDEWEB)

    Diana Nicmorus, Gernot Eichmann, Reinhard Alkofer

    2010-12-01

    We investigate the electromagnetic form factors of the Delta and the Omega baryons within the Poincare-covariant framework of Dyson-Schwinger and Bethe-Salpeter equations. The three-quark core contributions of the form factors are evaluated by employing a quark-diquark approximation. We use a consistent setup for the quark-gluon dressing, the quark-quark bound-state kernel and the quark-photon interaction. Our predictions for the multipole form factors are compatible with available experimental data and quark-model estimates. The current-quark mass evolution of the static electromagnetic properties agrees with results provided by lattice calculations.

  17. Study of BB ¯*/DD ¯* bound states in a Bethe-Salpeter approach

    Science.gov (United States)

    He, Jun

    2014-10-01

    In this work the BB ¯*/DD ¯* system is studied in the Bethe-Salpeter approach with quasipotential approximation. In our calculation both direct and cross diagrams are included in the one-boson-exchange potential. The numerical results indicate the existence of an isoscalar bound state DD ¯* with JPC=1++, which may be related to the X(3872). In the isovector sector, no bound state is produced from the interactions of DD ¯* and BB ¯*, which suggests the molecular state explanations for Zb(10610) and Zc(3900) are excluded.

  18. Global Culture in Practice. A Look at Children and Adolescents in Denmark, France and Israel

    DEFF Research Database (Denmark)

    Stald, Gitte Bang; Lemish, Dafna; Drotner, Kirsten

    1998-01-01

    Childern,young people,adolescents,media,globalisation,global culture,Denmark,France,Israel,national culture,television,transnational fiction preferences,hybrid culture,music,new mediaIsrael,......Childern,young people,adolescents,media,globalisation,global culture,Denmark,France,Israel,national culture,television,transnational fiction preferences,hybrid culture,music,new mediaIsrael,...

  19. Does Israel Have a Need to Retain the Golan Heights? (The View from Israel).

    Science.gov (United States)

    1980-06-06

    APPENDIX E. MAP 3.1 - GOLAN HEIGHTS, TERRAIN SKETCH . . 78 APPENDIX F. MAP - KINGDOM OF DAVID AND SOLOMON ....... . 80 APPENDIX G. MAP - KINGDOM OF HEROD ...levitical cities. 11 The Roman proclamation of Herod as king in the discussed region (40 B.C.) brought a change in the borders and in the administrative...north.21 This correction of the boundary would correspond to the northern frontier of the biblical Land of Israel and encompass the val- ley of the

  20. Israel: Background and U.S. Relations in Brief

    Science.gov (United States)

    2016-09-16

    Recent dynamics in U.S.-Israel relations and security cooperation.  Addressing regional threats Israel perceives, including via a new memorandum of...from $10.8 million to $67.3 million, and for Arrow 3 from $55.8 million to $204.9 million. For some information on the Congress- Administration dynamics ...amounts transferred by the PA to “terrorists and their families ” will be deducted from the monthly tax revenues Israel transfers to the PA. 56 In

  1. Symmetry preserving truncations of the gap and Bethe-Salpeter equations

    CERN Document Server

    Binosi, Daniele; Papavassiliou, Joannis; Qin, Si-Xue; Roberts, Craig D

    2016-01-01

    Ward-Green-Takahashi (WGT) identities play a crucial role in hadron physics, e.g. imposing stringent relationships between the kernels of the one- and two-body problems, which must be preserved in any veracious treatment of mesons as bound-states. In this connection, one may view the dressed gluon-quark vertex, $\\Gamma_\\mu^a$, as fundamental. We use a novel representation of $\\Gamma_\\mu^a$, in terms of the gluon-quark scattering matrix, to develop a method capable of elucidating the unique quark-antiquark Bethe-Salpeter kernel, $K$, that is symmetry-consistent with a given quark gap equation. A strength of the scheme is its ability to expose and capitalise on graphic symmetries within the kernels. This is displayed in an analysis that reveals the origin of $H$-diagrams in $K$, which are two-particle-irreducible contributions, generated as two-loop diagrams involving the three-gluon vertex, that cannot be absorbed as a dressing of $\\Gamma_\\mu^a$ in a Bethe-Salpeter kernel nor expressed as a member of the class...

  2. "Generalized" algebraic Bethe ansatz, Gaudin-type models and Zp-graded classical r-matrices

    Science.gov (United States)

    Skrypnyk, T.

    2016-12-01

    We consider quantum integrable systems associated with reductive Lie algebra gl (n) and Cartan-invariant non-skew-symmetric classical r-matrices. We show that under certain restrictions on the form of classical r-matrices "nested" or "hierarchical" Bethe ansatz usually based on a chain of subalgebras gl (n) ⊃ gl (n - 1) ⊃ . . . ⊃ gl (1) is generalized onto the other chains or "hierarchies" of subalgebras. We show that among the r-matrices satisfying such the restrictions there are "twisted" or Zp-graded non-skew-symmetric classical r-matrices. We consider in detail example of the generalized Gaudin models with and without external magnetic field associated with Zp-graded non-skew-symmetric classical r-matrices and find the spectrum of the corresponding Gaudin-type hamiltonians using nested Bethe ansatz scheme and a chain of subalgebras gl (n) ⊃ gl (n -n1) ⊃ gl (n -n1 -n2) ⊃ gl (n - (n1 + . . . +np-1)), where n1 +n2 + . . . +np = n.

  3. Solution to Bethe-Salpeter equation via Mellin-Barnes transform

    Energy Technology Data Exchange (ETDEWEB)

    Allendes, Pedro [Concepcion Univ. (Chile). Dept. de Fisica; Kniehl, Bernd [Hamburg Univ. (Germany). 2. Inst. fuer Theoretische Physik; Kondrashuk, Igor; Rojas Medar, Marko [Univ. del Bio-Bio, Chillan (Chile). Dept. de Ciencias Basicas; Notte Cuello, Eduardo A. [Univ. de La Serena (Chile). Facultad de Ciencias

    2012-06-15

    We consider Mellin-Barnes transform of triangle ladder-like scalar diagram in d=4 dimensions. It is shown how multi-fold MB transform of the momentum integral corresponding to any number of rungs is reduced to two-fold MB transform. For this purpose we use Belokurov-Usyukina reduction method for four-dimensional scalar integrals in the position space. The result is represented in terms of Euler {psi}-function and its derivatives. We derive new formulas for MB two-fold integration in the complex planes of two complex variables. We demonstrate that these formulas solve Bethe-Salpeter equation. We comment on further applications of solution to Bethe-Salpeter equation for vertices in N=4 supersymmetric Yang-Mills theory. We show that the recursive property of MB transforms observed in the present work for that kind of diagrams has nothing to do with quantum field theory, theory of integral transforms, or with theory of polylogarithms in general, but has an origin in a simple recursive property for smooth functions which can be shown by using basic methods of mathematical analysis.

  4. Solution to Bethe-Salpeter equation via Mellin-Barnes transform

    CERN Document Server

    Allendes, Pedro; Kondrashuk, Igor; Cuello, Eduardo A Notte; Medar, Marko Rojas

    2012-01-01

    We consider Mellin-Barnes transform of triangle ladder-like scalar diagram in d=4 dimensions. It is shown how multi-fold MB transform of the momentum integral corresponding to any number of rungs is reduced to two-fold MB transform. For this purpose we use Belokurov-Usyukina reduction method for four-dimensional scalar integrals in the position space. The result is represented in terms of Euler psi-function and its derivatives. We derive new formulas for MB two-fold integration in the complex planes of two complex variables. We demonstrate that these formulas solve Bethe-Salpeter equation. We comment on further applications of solution to Bethe-Salpeter equation for vertices in N=4 supersymmetric Yang-Mills theory. We show that the recursive property of MB transforms observed in the present work for that kind of diagrams has nothing to do with quantum field theory, theory of integral transforms, or with theory of polylogarithms in general, but has an origin in a simple recursive property for smooth functions ...

  5. The single-particle density matrix of a quantum bright soliton from the coordinate Bethe ansatz

    Science.gov (United States)

    Ayet, Alex; Brand, Joachim

    2017-02-01

    We present a novel approach for computing reduced density matrices for superpositions of eigenstates of a Bethe-ansatz solvable model by direct integration of the wave function in coordinate representation. A diagrammatic approach is developed to keep track of relevant terms and identify symmetries, which helps to reduce the number of terms that have to be evaluated numerically. As a first application we compute with modest numerical resources the single-particle density matrix and its eigenvalues including the condensate fraction for a quantum bright soliton with up to N  =  10 bosons. The latter are constructed as superpositions of string-type Bethe-ansatz eigenstates of nonrelativistic bosons in one spatial dimension with attractive contact interaction. Upon delocalising the superposition in momentum space we find that the condensate fraction reaches maximum values larger than 97% with weak particle-number dependence in the range of particles studied. The presented approach is suitable for studying time-dependent problems and generalises to higher-order correlation functions.

  6. Ground State Mass Spectrum for Scalar Diquarks with Bethe-Salpeter Equation

    Institute of Scientific and Technical Information of China (English)

    WANG Zhi-Gang; WAN Shao-Long; YANG Wei-Min

    2007-01-01

    In this article,we study the structures of the pseudoscalar mesons π,K and the scalar diquarks Ua,Da,Sa in the framework of the coupled rainbow Schwinger-Dyson equation and ladder Bethe-Salpeter equation with the confining effective potential.The u,d,s quarks have small current masses,and the renormalization is very large,the mass poles in the timelike region are absent which implements confinement naturally.The Bethe-Salpeter wavefunctions of the pseudoscalar mesons π,K,and the scalar diquarks Ua,Da,Sa have the same type (Gaussian type) momentum dependence,center around zero momentum and extend to the energy scale about q2 = 1 GeV2,which happens to be the energy scale for the chiral symmetry breaking,the strong interactions in the infrared region result in bound (or quasi-bound) states.The numerical results for the masses and decay constants of the π and K mesons can reproduce the experimental values,and the ground state masses of the scalar diquarks Ua,Da,Sa are consistent with the existing theoretical calculations.We suggest a new Lagrangian which may explain the uncertainty of the masses of the scalar diquarks.

  7. Exact satisfiability threshold for k -satisfiability problems on a Bethe lattice

    Science.gov (United States)

    Krishnamurthy, Supriya; Sumedha

    2015-10-01

    The satisfiability threshold for constraint satisfaction problems is that value of the ratio of constraints (or clauses) to variables, above which the probability that a random instance of the problem has a solution is zero in the large system limit. Two different approaches to obtaining this threshold have been discussed in the literature: using first or second moment methods which give rigorous bounds or using the nonrigorous but powerful replica-symmetry-breaking (RSB) approach, which gives very accurate predictions on random graphs. In this paper, we lay out a different route to obtaining this threshold on a Bethe lattice. We need make no assumptions about the solution-space structure, a key assumption in the RSB approach. Despite this, our expressions and threshold values exactly match the best predictions of the cavity method under the one-step RSB hypothesis. In addition we can use the same procedure to obtain other useful quantities on the Bethe lattice such as the second moment of the number of solutions. Our method hence provides alternate interpretations as well as motivations for the key equations in the RSB approach.

  8. Semi-classical analysis of the inner product of Bethe states

    CERN Document Server

    Bettelheim, Eldad

    2014-01-01

    We study the inner product of two Bethe states, one of which is taken on-shell, in an inhomogeneous XXX chain in the Sutherland limit, where the number of magnons is comparable with the length L of the chain and the magnon rapidities arrange in a small number of macroscopically large Bethe strings. The leading order in the large L limit is known to be expressed through a contour integral of a dilogarithm. Here we derive the subleading term. Our analysis is based on a new contour-integral representation of the inner product in terms of a Fredholm determinant. We give two derivations of the sub-leading term. Besides a direct derivation by solving a Riemann-Hilbert problem, we give a less rigorous, but more intuitive derivation by field-theoretical methods. For that we represent the Fredholm determinant as an expectation value in a Fock space of chiral fermions and then bosonize. We construct a collective field for the bosonized theory, the short wave-length part of which may be evaluated exactly, while the long...

  9. A Novel Algorithm for Extracting the Parton Distribution Amplitude from the Euclidean Bethe-Salpeter Wave Function

    CERN Document Server

    Gao, Fei; Liu, Yu-xin

    2016-01-01

    We propose a new numerical method to compute parton distribution amplitude(PDA) from the Euclidean Bethe-Salpeter wave function. The essential step is to extract the weight function in the Nakanishi representation of the Bethe-Salpeter wave function in Euclidean space, which is an ill-posed inversion problem, via the maximum entropy method(MEM). The Nakanishi weight function as well as the corresponding light-front PDA can be well determined. We confirm the previous works on PDA computation therein the different method has been performed.

  10. Yangian symmetry, S-matrices and Bethe Ansatz for the AdS{sub 5} x S{sup 5} superstring

    Energy Technology Data Exchange (ETDEWEB)

    Leeuw, M. de [Institute for Theoretical Physics and Spinoza Institute, Utrecht University (Netherlands)

    2009-05-15

    We discuss the relation between the recently derived bound state S-matrices for the AdS{sub 5} x S{sup 5} superstring and Yangian symmetry. We will study the relation between this Yangian symmetry and the Bethe ansatz. In particular we can use it to derive the Bethe equations for bound states. (Abstract Copyright [2009], Wiley Periodicals, Inc.)

  11. Religiosity, nationalism and fertility in Israel.

    Science.gov (United States)

    Anson, J; Meir, A

    1996-03-01

    It is suggested that Israel's high fertility can be explained by a collective national conscience rather than the traditional interpretation of Jewish religiosity. It is suggested that religiosity is a proxy for a national consciousness and daily living standards. It is argued that normative orientations or cultural explanations of the value of children are intervening variables according to the framework established by Davis and Blake. The collective conscience reflects Israel's special position in the Middle East and within the world economy. The nationalist feelings reflect a range in political views. The author disputes the ethnic and religious explanations for high fertility. Fertility increased since the 1960s even among low fertility European-American born women. During the early 1980s fertility was 2.75, which was high compared to European levels at the same standard of living. Reference is made to the literature on the association between high fertility and survival strategies in insecure or discriminatory settings. This study's analysis is based on a macro- rather than individual-level approach to understanding behavior. The theoretical framework is based on the theories of Durkheim and Gane. The analysis uses data from the 1983 census on Jewish fertility in urban statistical areas and Jewish voting patterns in national elections in 1984. Correspondence analysis is used to identify voting patterns by area. The four political postures are identified as religious and conciliatory (71 areas), religious and nationalist (142 areas), nonreligious and nationalist, and nonreligious and conciliatory. Women in nationalist areas had 35% more children than women in conciliatory areas. Although both religiosity and nationalism were positively correlated with high fertility, nationalist commitment was a better predictor. The model including religiosity, nationalism, and income showed no independent effect of religiosity on fertility.

  12. [Laboratory tests for parasitic diseases in Israel].

    Science.gov (United States)

    Marva, Esther; Grossman, Tamar

    2010-09-01

    Microscopic examination is still considered the gold standard for the diagnosis of parasitic diseases. In many clinical laboratories in hospitals and in health maintenance organizations ("Kupot Holim"), an excellent microscopic identification of parasites is performed. Microscopic examinations using wet mount preparations are performed for the detection of protozoan trophozoites and helmintic ova or larvae. Specific concentration techniques, including flotation and sedimentation procedures are further performed for the diagnosis of parasitic diseases. However, microscopic examinations are time-consuming, non-sensitive and not always reliable. Furthermore, the diagnosis of certain infections is not always possible by searching for the parasites in host tissues or excreta since risky invasive techniques might be necessary to locate the parasites. Detection of antibodies can be very useful as an indication for infection with a specific parasite, especially in individuals with no exposure to the parasite prior to recent travel in a disease-endemic area. In addition to serology, there are other tests of high sensitivity which can be integrated with microscopy, such as antigen detection in stool and blood samples as well as the use of other molecular diagnosis methods. There are two main laboratories in Israel where parasitic diagnosis is available by integration of microscopy, serology, antigen detection and molecular methods: The Reference Laboratory for Parasitology in Jerusalem at the Central Laboratories of the Ministry of Health (MOH) and the Laboratory of Parasitology at Soroka University Medical Center, Beer Sheva (SOR). There are also two special diagnostic units, one responsible for the identification of toxopLasma: Reference Laboratory for Toxoplasmosis, Public Health Laboratory, Ministry of Health, Tel Aviv (Tox), and the other for the identification of Leishmaniasis: Kuvin Center, Faculty of Medicine, Hebrew University of Jerusalem (Kuv). This article

  13. Suletud utoopia? / Israel Shahak ; tõlk. Lauri Pilter

    Index Scriptorium Estoniae

    Shahak, Israel

    2003-01-01

    Juutide ja mittejuutide ebavõrdsused Iisraelis. Artiklis on juttu ka Iisraeli kui "juudi riigi" õigusest. Lisatud tõlkija kommentaar. Tõlke allikas: Israel Shahak. Jewish History, Jewish Religion: The Weight of Three Thousand Years. London, 1994

  14. The United States and Israel, from alliance to symbiosis

    Directory of Open Access Journals (Sweden)

    Ferran Izquierdo Brichs

    2003-12-01

    Full Text Available The relationship between Israel and the United States has been evolving from that of an alliance during the Cold War to a symbiosis nowadays. American policy toward the Middle East is marked by its interest in oil, to which its growing relationship with Israelhas gradually been added. However, although for a long time the interests it shared with Saudi Arabia and other Arab countries moderated its policy and balanced its support of Israel somewhat, in the last few years its alliance with Israel has come to dominate Washington’s strategy. This is reflected in its invasion of Iraq and its tensions with Arab countries. The reason for this evolution must be sought, primarily, in the influence that Israel and pro-Zionist lobbies have gained in the domestic policy of the United States.

  15. AGRESI ISRAEL TERHADAP PALESTINA PERSPEKTIF HUKUM HUMANITER INTERNASIONAL

    Directory of Open Access Journals (Sweden)

    Aryuni Yuliantiningsih

    2009-05-01

    Full Text Available Israel’s agrresion to Palestina has international reactions because of enormous victims caused by that action, whom mostly were civilians. According humanitarian law, Israel’s agression to Palestina had breached humanitarian law principles, there are : humanity principle, limitation principle and distinction principle. Israel has done war crimes so international society asked how Israel can be justiced ? There are three mechanism to enforce humanitarian law. First, the contracting parties of Jeneva Convention State to enact any legislation neccessary to provide effective penal sanction for person committing or ordering to be comitted any of the grave breaches , second by ad hoc tribunal and third by International Criminal Court, but it is rather difficult to prosecute Israel because Israel don’t ratificate Roma Statuta 1998.

  16. Lagrangian formulation of relativistic Israel-Stewart hydrodynamics

    Science.gov (United States)

    Montenegro, David; Torrieri, Giorgio

    2016-09-01

    We rederive relativistic hydrodynamics as a Lagrangian effective theory using the doubled coordinates technique, allowing us to include dissipative terms. We include Navier-Stokes shear and bulk terms, as well as Israel-Stewart relaxation time terms, within this formalism. We show how the inclusion of shear dissipation forces the inclusion of the Israel-Stewart term into the theory, thereby providing an additional justification for the form of this term.

  17. ISRAEL-DIASPORA RELATIONS: MUTUAL IMAGES, EXPECTATION, FRUSTRATIONS

    Directory of Open Access Journals (Sweden)

    Raphael VAGO

    2013-06-01

    Full Text Available The essay outlines the main developments and challenges in the developing relations between the State of Israel and the Jewish Diaspora abroad. With a Jewish population of 650,000 with the establishment of Israel in 1948, the Jewish nation, in the wake of the Holocaust, perceived the new state as a symbol of rebirth and continuity, which must have total support of the Diaspora Jewry for the survival of the Jewish state. Six and a half decades later, half of the Jewish population of the World lives in Israel, which with all its problems, is an advanced high-tech society. Today, Israel became a divisive issue in the Diaspora relating to Israeli policies and politics, and the complex definitions of “who is a Jew”. Israel today supports the Diaspora Jews to preserve and foster their Jewish identity in face of rising assimilation, it needs less the economic support of the well to do communities, but it needs the Diaspora as a pro-Israeli lobby. On the one hand it is a mutual need – if not dependence, on the other hand there is a possibility of the two sides – Israel and world Jewry drifting apart into two entities, with different agendas, priorities, differing perceptions on the meaning of being “Jewish”.

  18. Eigenvalues of Ruijsenaars-Schneider models associated with $A_{n-1}$ root system in Bethe ansatz formalism

    CERN Document Server

    Hou, B; Yang, W L; Hou, Boyu; Sasaki, Ryu; Yang, Wen-Li

    2004-01-01

    Ruijsenaars-Schneider models associated with $A_{n-1}$ root system with a discrete coupling constant are studied. The eigenvalues of the Hamiltonian are givein in terms of the Bethe ansatz formulas. Taking the "non-relativistic" limit, we obtain the spectrum of the corresponding Calogero-Moser systems in the third formulas of Felder et al [20].

  19. Coordinate Bethe ansatz computation for low temperature behavior of a triangular lattice of a spin-1 Heisenberg antiferromagnet

    Energy Technology Data Exchange (ETDEWEB)

    Shuaibu, A. [Department of Physics, Faculty of Science, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia and Physics Department, Faculty of Science, Nigerian Defence Academy, P.M.B 2109, Kaduna (Nigeria); Rahman, M. M. [Physics Department, Faculty of Science, Nigerian Defence Academy, P.M.B 2109, Kaduna (Nigeria)

    2014-03-05

    We study the low temperature behavior of a triangular lattice quantum spin-1 Heisenberg antiferromagnet with single-site anisotropy by using coordinate Bethe ansatz method. We compute the standard two-particle Hermitian Hamiltonian, and obtain the eigenfunctions and eigenvalue of the system. The obtained results show a number of advantages in comparison with many results.

  20. An Electromagnetic Form Factor of a Charged Scalar Meson with Schwinger-Dyson and Bethe-Salpeter Equations

    Institute of Scientific and Technical Information of China (English)

    XIE Chuan-Mei; LI Heng-Mei; WAN Shao-Long

    2009-01-01

    The wave functions and electromagnetic form factor of charged scalar mesons are studied with a modified vector-vector flat-bottom potential model under the framework of the Schwinger-Dyeon and Bethe-Salpeter equations.The obtained results agree well with other theories.

  1. Bethe Ansatz for Supersymmetric Model Constructed from Uq[osp(2|2)(2)] R-Matrix

    Institute of Scientific and Technical Information of China (English)

    YANG Wen-Li; ZHEN Yi

    2001-01-01

    Using the algebraic Bethe ansatz method, we obtain the eigenvalues of transfer matrix of the supersymmetric model constructed from the R-matrix of the twisted affine superalgebra Uq[osp(2|2)(2)] in periodic boundary condition and twisted boundary condition.``

  2. Nuclear magnetic polarizability and the slope of the Thomas-Reiche-Kuhn-Levinger-Bethe sum rule

    CERN Document Server

    Gorchtein, Mikhail

    2015-01-01

    Thomas-Reiche-Kuhn-Levinger-Bethe sum rule that relates the strength of the photoexcitation of the giant dipole resonance in a nucleus to the number of elementary scatterers-protons within that nucleus by means of a subtracted forward dispersion relation. I extend this dispersion relation consideration to the case of virtual photons and show that the size of the magnetic polarizability of a nucleus, under the assumption of a separation between the nuclear and hadronic scales, may be related to the slope of the transverse virtual photoabsorption cross section integrated over the energy. I check this approximate sum rule for the deuteron where necessary data is available, discuss possible applications and connection with other sum rules postulated in the literature.

  3. Bethe ansatz solution of the small polaron with nondiagonal boundary terms

    Science.gov (United States)

    Karaiskos, Nikos; Grabinski, André M.; Frahm, Holger

    2013-07-01

    The small polaron with generic, nondiagonal boundary terms is investigated within the framework of quantum integrability. The fusion hierarchy of the transfer matrices and its truncation for particular values of the anisotropy parameter are both employed, so that the spectral problem is formulated in terms of a TQ equation. The solution of this equation for generic boundary conditions is based on a deformation of the diagonal case. The eigenvalues of the model are extracted and the corresponding Bethe ansatz equations are presented. Finally, we comment on the eigenvectors of the model and explicitly compute the eigenstate of the model which evolves into the Fock vacuum when the off-diagonal boundary terms are switched off.

  4. Analysis of quantum spin models on hyperbolic lattices and Bethe lattice

    Science.gov (United States)

    Daniška, Michal; Gendiar, Andrej

    2016-04-01

    The quantum XY, Heisenberg, and transverse field Ising models on hyperbolic lattices are studied by means of the tensor product variational formulation algorithm. The lattices are constructed by tessellation of congruent polygons with coordination number equal to four. The calculated ground-state energies of the XY and Heisenberg models and the phase transition magnetic field of the Ising model on the series of lattices are used to estimate the corresponding quantities of the respective models on the Bethe lattice. The hyperbolic lattice geometry induces mean-field-like behavior of the models. The ambition to obtain results on the non-Euclidean lattice geometries has been motivated by theoretical studies of the anti-de Sitter/conformal field theory correspondence.

  5. All-loop Bethe ansatz equations for AdS3/CFT2

    CERN Document Server

    Borsato, Riccardo; Sfondrini, Alessandro

    2012-01-01

    Using the S-matrix for the d(2,1;alpha)^2 symmetric spin-chain of AdS3/CFT2, we propose a new set of all-loop Bethe equations for the system. These equations differ from the ones previously found in the literature by the choice of relative grading between the two copies of the d(2,1;alpha) superalgebra, and involve four undetermined scalar factors that play the role of dressing phases. Imposing crossing symmetry and comparing with the near-BMN form of the S-matrix found in the literature, we find several novel features. In particular, the scalar factors must differ from the Beisert-Eden-Staudacher phase, and should couple nodes of different masses to each other. In the semiclassical limit the phases are given by a suitable generalization of Arutyunov-Frolov-Staudacher phase.

  6. Strange hadronic stellar matter within the Brueckner-Bethe-Goldstone theory

    CERN Document Server

    Baldo, Marcello; Schulze, H J

    2000-01-01

    In the framework of the non-relativistic Brueckner-Bethe-Goldstone theory, we derive a microscopic equation of state for asymmetric and $\\beta$-stable matter containing $\\Sigma^-$ and $\\Lambda$ hyperons. We mainly study the effects of three-body forces (TBFs) among nucleons on the hyperon formation and the equation of state (EoS). We find that, when TBFs are included, the stellar core is almost equally populated by nucleons and hyperons. The resulting EoS, which turns out to be extremely soft, has been used in order to calculate the static structure of neutron stars. We obtain a value of the maximum mass of 1.26 solar masses (1 solar mass $M_o \\simeq 1.99 \\cdot 10^{33} g$). Stellar rotations increase this value by about 12%.

  7. Sandwiched trilayer of Bethe lattices in the form of spin-(1/2,1,1/2)

    Energy Technology Data Exchange (ETDEWEB)

    Albayrak, Erhan, E-mail: albayrak@erciyes.edu.t [Erciyes University, Department of Physics, 38039 Kayseri (Turkey); Aker, Aynur [Erciyes University, Department of Physics, 38039 Kayseri (Turkey)

    2010-11-15

    The sandwiched trilayer of Bethe lattices in the form of the spins with spin-(1/2,1,1/2) Ising model is studied in terms of the recursion relations with either ferromagnetic or antiferromagnetic type bilinear interactions between the nearest-neighbor (NN) spins. The ground-state (GS) phase diagrams are obtained and it was found that the model presents six different GS phase configurations. In order to obtain the phase diagrams, the thermal variations of the order-parameter, spin-spin correlation functions and free energy are analyzed and different topological phase diagrams are obtained. It was found that the system exhibits different critical behaviors such as, second- and first-order phase transitions, tricritical and bicritical points for the values of the coordination numbers q=3,4 and 6.

  8. All-loop Bethe ansatz equations for AdS3/CFT2

    Science.gov (United States)

    Borsato, Riccardo; Sax, Olof Ohlsson; Sfondrini, Alessandro

    2013-04-01

    Using the S-matrix for the {d}{{( {2, 1; α } )}^2} symmetric spin-chain of AdS3/CFT2, we propose a new set of all-loop Bethe equations for the system. These equations differ from the ones previously found in the literature by the choice of relative grading between the two copies of the {d}( {2, 1; α } ) superalgebra, and involve four undetermined scalar factors that play the role of dressing phases. Imposing crossing symmetry and comparing with the near-BMN form of the S-matrix found in the literature, we find several novel features. In particular, the scalar factors must differ from the Beisert-Eden-Staudacher phase, and should couple nodes of different masses to each other. In the semiclassical limit the phases are given by a suitable generalization of Arutyunov-Frolov-Staudacher phase.

  9. Helium atom excitations by the GW and Bethe-Salpeter many-body formalism

    CERN Document Server

    Li, Jing; Duchemin, Ivan; Blase, Xavier; Olevano, Valerio

    2016-01-01

    Helium atom is the simplest many-body electronic system provided by nature. The exact solution to the Schr\\"odinger equation is known for helium ground and excited states, and represents a workbench for any many-body methodology. Here we check ab initio many-body GW approximation and Bethe-Salpeter equation (BSE) against helium exact solution. Starting from Hartree-Fock, we show that GW and BSE yield impressingly accurate results on excitation energies and oscillator strength. These findings suggest that the accuracy of BSE and GW approximations is not significantly limited by self-interaction and self-screening problems even in this few electron limit. We further discuss our results in comparison to those obtained by time-dependent density-functional theory.

  10. Comultiplication in ABCD algebra and scalar products of bethe wave functions

    Science.gov (United States)

    Mikhailov, A.

    1994-07-01

    The representation of scalar products of Bethe wave functions in terms of dual fields, proved by A. G. Izergin and V. E. Korepin in 1987, plays an important role in the theory of completely integrable models. The proof in [A. G. Izergin, Dokl. Akad. Nauk SSSR, 297, No. 2, 331 (1987)] and [V. E. Korepin, Commun. Math. Phys., 113, 177 190 (1978)] is based on the explicit expression for the “senior” coefficient, which was guessed in the Izergin paper and then proved to satisfy some recurrent relations, which determine it unambiguously. In this paper we present an alternative proof based on direct computation. It uses the operation of comultiplication in the ABCD-algebra.

  11. Topics in dual models and extended solutions. [Bethe-Salpeter equation

    Energy Technology Data Exchange (ETDEWEB)

    Roth, R.S.

    1977-06-01

    Two main topics are explored. The first deals with the infinities arising from the one loop planar string diagram of the standard dual model. It is shown that for the number of dimensions d = 25 or 26, these infinities lead to a renormalization of the slope of the Regge trajectories, in addition to a renormalization of the coupling constant. The second topic deals with the propagator for a confined particle (monopole) in a field theory. When summed to all orders, this propagator is altogether free of singularities in the finite momentum plane, and an attempt is made to illustrate this. One examines the Bethe-Salpeter equation and shows that ladder diagrams are not sufficient to obtain this result. However, in a nonrelativistic approximation confinement is obtained and all poles disappear.

  12. Open spin chains with generic integrable boundaries: Baxter equation and Bethe ansatz completeness from SOV

    CERN Document Server

    Kitanine, N; Niccoli, G

    2014-01-01

    We solve the longstanding problem to define a functional characterization of the spectrum of the transfer matrix associated to the most general spin-1/2 representations of the 6-vertex reflection algebra for general inhomogeneous chains. The corresponding homogeneous limit reproduces the spectrum of the Hamiltonian of the spin-1/2 open XXZ and XXX quantum chains with the most general integrable boundaries. The spectrum is characterized by a second order finite difference functional equation of Baxter type with an inhomogeneous term which vanishes only for some special but yet interesting non-diagonal boundary conditions. This functional equation is shown to be equivalent to the known separation of variable (SOV) representation hence proving that it defines a complete characterization of the transfer matrix spectrum. The polynomial character of the Q-function allows us then to show that a finite system of equations of generalized Bethe type can be similarly used to describe the complete transfer matrix spectru...

  13. The algebraic Bethe ansatz for rational braid-monoid lattice models

    CERN Document Server

    Martins, M J

    1997-01-01

    In this paper we study isotropic integrable systems based on the braid-monoid algebra. These systems constitute a large family of rational multistate vertex models and are realized in terms of the B_n, C_n and D_n Lie algebra and by the superalgebra Osp(n|2m). We present a unified formulation of the quantum inverse scattering method for many of these lattice models. The appropriate fundamental commutation rules are found, allowing us to construct the eigenvectors and the eigenvalues of the transfer matrix associated to the B_n, C_n, D_n, Osp(2n-1|2), Osp(2|2n-2), Osp(2n-2|2) and Osp(1|2n) models. The corresponding Bethe Ansatz equations can be formulated in terms of the root structure of the underlying algebra.

  14. Reflection Amplitudes in Non-Simply Laced Toda Theories and Thermodynamic Bethe Ansatz

    CERN Document Server

    Ahn, C; Fateev, V A; Kim, C; Rim, C; Ahn, Changrim; Kim, Chanju; Rim, Chaiho

    2000-01-01

    We study the ultraviolet asymptotics in non-simply laced affine Toda theoriesconsidering them as perturbed non-affine Toda theories, which possess theextended conformal symmetry. We calculate the reflection amplitudes, innon-affine Toda theories and use them to derive the quantization condition forthe vacuum wave function, describing zero-mode dynamics. The solution of thisquantization conditions for the ground state energy determines the UVasymptotics of the effective central charge. These asymptotics are in a goodagreement with Thermodynamic Bethe Ansatz(TBA) results. To make the comparisonwith TBA possible, we give the exact relations between parameters of the actionand masses of particles as well as the bulk free energies for non-simply lacedaffine Toda theories.

  15. Analyzing the DK molecular state in the Bethe-Salpeter approach%在Bethe-Salpeter方程框架下研究DK分子态

    Institute of Scientific and Technical Information of China (English)

    谢振兴

    2012-01-01

    本文研究了BaBar合作组在分析正负电子湮灭的不变质量时发现的一个很窄的峰结构,该峰结构被命名为D(*s0)+(2317).首先假定它是S波的DK分子束缚态,利用Bethe-Salpeter方程研究了其结构并研究了其同位旋破缺衰变过程D(*s0)+ (2317)→D(s+)+π0,同时在末态考虑了η-π0混合效应对衰变宽度的影响.研究结果表明,D(*s0)+(2317)可以具有DK的分子束缚态结构,而且η-π0混合效应对衰变宽度影响非常明显,D(*s0)+(2317)→D(s+)π0衰变宽度的理论结果与实验结果相符.其它的理论模型也对D(*s0)+(2317)的结构和性质进行了研究,认为D(*s0)+ (2317)可能存在其它形式的结构,并且得到的理论结果和实验结果相符.因此的结构存在多种形式,或者是几种结构的混合.该研究结果对未来的实验进一步确定D(*s0)(2317)的结构有指导意义.%We analyze the state D++s0 (2317) ,which was discovered as a very narrow peak by the Babar collaboration while analyzing the invariant mass distribution of the decay final state D++,0. Assuming D++s0(2317) that is composed of DK, we use the Bethe-Salpeter equation to study the structure of D++s0(2317) and the isospin breaking decay process D++s0 (2317)→Ds+π0. We also consider the η -π0 mixing effect in the decay. It is shown that D++s0 (2317) can be formed as a molecular bound state of DK and the mixing effect has significant influence on the decay. The decay width in our model agrees with the resolution of the detector. Other theoretical models are also used to study the property and the structure of D++s0(2317) .assuming that D++s0(2317) may have other forms, and the results agree with the experimental data too. So the structure of may be other forms or the mixing of them. Our results will give important instructions to the forthcoming experiments.

  16. Fertility behaviour of recent immigrants to Israel

    Directory of Open Access Journals (Sweden)

    2004-03-01

    Full Text Available The fertility practices of immigrants are a particularly interesting field of study for demographers, providing an insight into the fertility behaviour of individuals when both the society and the individual undergo a period of rapid change. This paper describes and compares the fertility behaviour of two large groups of immigrants, from the former Soviet Union (FSU and from Ethiopia to Israel in the last 20 years. The changes in fertility behaviour undergone in the same society and at the same time by two very different groups are examined. The findings reveal that the fertility behaviour of immigrants is indeed changing. The fertility of FSU immigrants is increasing and that of the Ethiopian immigrants decreasing, with accompanying changes in the proximate determinants of fertility. Although the fertility of immigrants is becoming more similar to that of the receiving society, the methods employed to achieve the fertility change are not necessarily similar, and, in some cases, diverge from the norms of the receiving society.

  17. Solar radiation data for Beer Sheva, Israel

    Energy Technology Data Exchange (ETDEWEB)

    Kudish, A.I.; Machlav, Y.; Wolf, D.

    1983-01-01

    A number of years of data on the global irradiation incident on a horizontal surface in Beer Sheva Israel (lat. = 31/sup 0/15'N, long. = 34/sup 0/48'E, elevation about 240 m) have been correlated. It is apparent from these data that this locale possesses a relatively high abundance of sunshine. The average cumulative annual irradiation is 6722MJ/m/sup 2/ and the average daily irradiation is 18.43 MJ/m/sup 2/. The percentage frequency of days possessing irradiation rates greater than 20 MJ/m/sup 2/ is 46 percent, whereas that possessing less than 10 MJ/m/sup 2/d is 11.9 percent. The percentage frequency of cloudy days (K /SUB T/ less than or equal to0.34) is low, 7.5 percent, whereas that for clear days (K /SUB T/ greater than or equal to 0.65) is 29.2 percent.

  18. Spring Bird Migration Phenology in Eilat, Israel

    Directory of Open Access Journals (Sweden)

    Reuven Yosef

    2009-12-01

    Full Text Available Analysis of the mean date of first captures and median arrival dates of spring migration for 34 species of birds at Eilat, Israel, revealed that the earlier a species migrates through Eilat, the greater is the inter-annual variation in the total time of its passage. Birds arrive during spring migration in Eilat in four structured and independent waves. The annual fluctuation in the initial arrival dates (initial capture dates and median dates (median date of all captures, not including recaptures, did not depend on the length of the migratory route. This implies that migrants crossing the Sahara desert depart from their winter quarters on different Julian days in different years. We suggest that negative correlations between the median date of the spring migration of early and late migrants depends upon the easterly (Hamsin wind period. Moreover, we believe that the phenology of all birds during spring migration in Eilat is possibly also determined by external factors such as weather conditions on the African continent or global climatic processes in the Northern hemisphere. Orphean Warblers (Sylvia hortensis show a strong positive correlation (rs=-0.502 of initial capture date with calendar years, whereas other species such as Barred Warbler (S. nisoria; rs = -0.391 and Spotted Flycatcher (Muscicapa striata; rs = -0.398 display an insignificant trend. The Dead Sea Sparrow (Passer moabiticus and Red-Backed Shrike (Lanius collurio are positively correlated regarding initial arrival date and medians of spring migration.

  19. Einstein before Israel Zionist icon or iconoclast?

    CERN Document Server

    Rosenkranz, Ze’ev

    2011-01-01

    Albert Einstein was initially skeptical and even disdainful of the Zionist movement, yet he affiliated himself with this controversial political ideology and today is widely seen as an outspoken advocate for a modern Jewish homeland in Palestine. What enticed this renowned scientist and humanitarian, who repeatedly condemned nationalism of all forms, to radically change his views? Was he in fact a Zionist? Einstein Before Israel traces Einstein's involvement with Zionism from his initial contacts with the movement at the end of World War I to his emigration from Germany in 1933 in the wake of Hitler's rise to power. Drawing on a wealth of rare archival evidence--much of it never before published--this book offers the most nuanced picture yet of Einstein's complex and sometimes stormy relationship with Jewish nationalism. Ze'ev Rosenkranz sheds new light on Einstein's encounters with prominent Zionist leaders, and reveals exactly what Einstein did and didn't like about Zionist beliefs, objectives, and methods...

  20. [The pioneer otolaryngologists in Eretz-Israel: 1911-1948].

    Science.gov (United States)

    Golz, Avishay

    2013-07-01

    Until 1911 there was no ear nose and throat (ENT) specialist in Eretz-Israel. Dr. Moshe Sherman, an ENT specialist, disembarked at the port of Jaffa on August 4, 1911. He had trained in Moscow, and was the first otolaryngologist in the country. Between 1911 and 1948, over 100 otolaryngologists arrived in Eretz-Israel and were dispersed throughout the country from Safed and Tiberias in the North to Rehovot in the South. These physicians brought modern and advanced European medicine to Israel. Many left their imprint on the development of ENT medicine in the country, laying the foundations of today's otolaryngologic services both in clinical and academic spheres. ENT medicine, like other fields of medicine, evolved following the establishment of the State of Israel in 1948. Many departments were opened and equipped with the best modern instruments and technology. Department heads are the pupils of our pioneer physicians. The memory of these talented and dedicated physicians should be remembered and cherished by their successors and all physicians in Israel.

  1. Paramecium tredecaurelia of the Paramecium aurelia complex in Israel.

    Science.gov (United States)

    Przyboś, Ewa; Nevo, Eviatar; Pavlicek, Tomas

    2002-01-01

    The paper concerns the finding of a new habitat (Kiryat Motzkin, north of Haifa, Israel) of Paramecium tredecaurelia from the P. aurelia complex. This is only the forth known locality of the species in the world. Previously, its strains were obtained from widely separated localities: the River Seine, Paris, France; Benenitra, Madagascar, and the Cuernavaca Valley, Taxco, Mexico. The studied strain originating from Israel was identified as P. tredecaurelia on the basis of the strong (90%) conjugation between the complementary mating type of the examined clones with the appropriate standard strain 209 of P. tredecaurelia from Paris, France (restricted to odd mating type). However, the strain from Israel is restricted to the even mating type.

  2. Rickettsia africae and Candidatus Rickettsia barbariae in ticks in Israel.

    Science.gov (United States)

    Waner, Trevor; Keysary, Avi; Eremeeva, Marina E; Din, Adi Beth; Mumcuoglu, Kosta Y; King, Roni; Atiya-Nasagi, Yafit

    2014-05-01

    DNA of several spotted fever group rickettsiae was found in ticks in Israel. The findings include evidence for the existence of Rickettsia africae and Candidatus Rickettsia barbariae in ticks in Israel. The DNA of R. africae was detected in a Hyalomma detritum tick from a wild boar and DNA of C. Rickettsia barbariae was detected in Rhipicephalus turanicus and Rhipicephalus sanguineus collected from vegetation. The DNA of Rickettsia massiliae was found in Rh. sanguineus and Haemaphysalis erinacei, whereas DNA of Rickettsia sibirica mongolitimonae was detected in a Rhipicephalus (Boophilus) annulatus. Clinicians should be aware that diseases caused by a variety of rickettsiae previously thought to be present only in other countries outside of the Middle East may infect residents of Israel who have not necessarily traveled overseas. Furthermore, this study reveals again that the epidemiology of the spotted fever group rickettsiae may not only involve Rickettsia conorii but may include other rickettsiae.

  3. Gun utopias? Firearm access and ownership in Israel and Switzerland.

    Science.gov (United States)

    Rosenbaum, Janet E

    2012-02-01

    The 2011 attempted assassination of a US representative renewed the national gun control debate. Gun advocates claim mass-casualty events are mitigated and deterred with three policies: (a) permissive gun laws, (b) widespread gun ownership, (c) and encouragement of armed civilians who can intercept shooters. They cite Switzerland and Israel as exemplars. We evaluate these claims with analysis of International Crime Victimization Survey (ICVS) data and translation of laws and original source material. Swiss and Israeli laws limit firearm ownership and require permit renewal one to four times annually. ICVS analysis finds the United States has more firearms per capita and per household than either country. Switzerland and Israel curtail off-duty soldiers' firearm access to prevent firearm deaths. Suicide among soldiers decreased by 40 per cent after the Israeli army's 2006 reforms. Compared with the United States, Switzerland and Israel have lower gun ownership and stricter gun laws, and their policies discourage personal gun ownership.

  4. Young Children with Disabilities in Israel: System of Early Intervention Service Delivery

    Science.gov (United States)

    Shulman, Cory; Meadan, Hedda; Sandhaus, Yoram

    2012-01-01

    This article aims to analyze early intervention programs in Israel according to the Developmental Systems Model (Guralnick, 2001), in an attempt to identify strengths and areas for further development for service delivery for young children with disabilities in Israel. Early intervention in Israel is part of a comprehensive healthcare model…

  5. 77 FR 44113 - Airworthiness Directives; Gulfstream Aerospace LP (Type Certificate Previously Held by Israel...

    Science.gov (United States)

    2012-07-27

    ... Aerospace LP (Type Certificate Previously Held by Israel Aircraft Industries, Ltd.) Airplanes AGENCY... previously held by Israel Aircraft Industries, Ltd.) Model Gulfstream G150 airplanes. This emergency AD was... previously held by Israel Aircraft Industries, Ltd.) Model Gulfstream G150 airplanes. These conditions...

  6. 78 FR 47546 - Airworthiness Directives; Gulfstream Aerospace LP (Type Certificate Previously Held by Israel...

    Science.gov (United States)

    2013-08-06

    ... Aerospace LP (Type Certificate Previously Held by Israel Aircraft Industries, Ltd.) Airplanes AGENCY... Certificate Previously Held by Israel Aircraft Industries, Ltd.) Model Gulfstream 100 airplanes, and Model...: 2013-14-10 Gulfstream Aerospace LP (Type Certificate Previously Held by Israel Aircraft Industries,...

  7. 77 FR 58323 - Airworthiness Directives; Gulfstream Aerospace LP (Type Certificate Previously Held by Israel...

    Science.gov (United States)

    2012-09-20

    ... Aerospace LP (Type Certificate Previously Held by Israel Aircraft Industries, Ltd.) Airplanes AGENCY... Previously Held by Israel Aircraft Industries, Ltd.) Model Gulfstream G150 airplanes. This proposed AD was... Previously Held by Israel Aircraft ] Industries, Ltd.): Docket No. FAA-2012-0986; Directorate Identifier...

  8. 78 FR 11567 - Airworthiness Directives; Gulfstream Aerospace LP (Type Certificate Previously Held by Israel...

    Science.gov (United States)

    2013-02-19

    ... Aerospace LP (Type Certificate Previously Held by Israel Aircraft Industries, Ltd.) Airplanes AGENCY... Previously Held by Israel Aircraft Industries, Ltd.) Model Gulfstream G150 airplanes. This AD was prompted by...: 2013-03-23 Gulfstream Aerospace LP (Type Certificate Previously Held by Israel Aircraft Industries,...

  9. 76 FR 70040 - Airworthiness Directives; Gulfstream Aerospace LP (Type Certificate Previously Held by Israel...

    Science.gov (United States)

    2011-11-10

    ... Aerospace LP (Type Certificate Previously Held by Israel Aircraft Industries, Ltd.) Airplanes AGENCY... previously held by Israel Aircraft Industries, Ltd.) Model Galaxy and Gulfstream G150 airplanes; and...: 2011-23-07 Gulfstream Aerospace LP (Type Certificate Previously Held by Israel Aircraft Industries,...

  10. 77 FR 44432 - Airworthiness Directives; Gulfstream Aerospace LP (Type Certificate Previously Held by Israel...

    Science.gov (United States)

    2012-07-30

    ... Aerospace LP (Type Certificate Previously Held by Israel Aircraft Industries, Ltd.) Airplanes AGENCY... previously held by Israel Aircraft Industries, Ltd.) Model Astra SPX, 1125 Westwind Astra, and Gulfstream 100... new AD: 2012-15-06 Gulfstream Aerospace LP (Type Certificate Previously Held by Israel...

  11. 75 FR 57844 - Airworthiness Directives; Gulfstream Aerospace LP (Type Certificate Previously Held by Israel...

    Science.gov (United States)

    2010-09-23

    ... Aerospace LP (Type Certificate Previously Held by Israel Aircraft Industries, Ltd.) Model Galaxy and... Held by Israel Aircraft Industries, Ltd.): Amendment 39-16438. Docket No. FAA-2010-0555; Directorate... Certificate previously held by Israel Aircraft Industries, Ltd.) Model Galaxy and Gulfstream 200...

  12. Fertility and marriage behavior in Israel: Diversity, change, and stability

    Directory of Open Access Journals (Sweden)

    Barbara Okun

    2013-03-01

    Full Text Available BACKGROUND Based on aggregate statistics, the population of Israel, as compared to all or most other developed societies, has very high levels of fertility and marriage (e.g. TFR of 2.96 in 2009 and only 9.7Š never married among women aged 40-44 in 2009. However, studying aggregate demographic measures is problematic, because Israel is an extremely heterogeneous society, with family formation patterns differing greatly across numerically important social groups. Until now, little has been documented about the basic fertility and marriage behavior of different population groups. OBJECTIVE We describe the fertility and marriage behavior of populations in Israel, broken down by nationality, religion, religiosity and nativity-status. Although our main focus is on a detailed presentation of fertility patterns, we also look at marriage behavior, as it is closely related to fertility in Israel. METHODS We analyze recently available annual data from the Israel Social Surveys for 2002-2009, which, for the first time in several decades,, provides detailed information on family and household demographic behavior and direct information on level of religiosity. We focus primarily on comparisons across cohorts born from the late 1940s to the late 1960s and between periods in the early and late 2000s. RESULTS We provide a detailed portrait of striking diversity in fertility and marriage behavior across population groups, along with important patterns of change and stability across cohorts and over time. We document findings and differential patterns, some unexpected, regarding comparisons across groups and across cohorts. CONCLUSIONS The descriptive findings form the basis for a clearer understanding of fertility and marriage patterns in different population subgroups in Israel. In addition, the reported results suggest many questions for future research, which are outlined in the paper.

  13. Early experiences with big data at an academic medical center.

    Science.gov (United States)

    Halamka, John D

    2014-07-01

    Beth Israel Deaconess Medical Center (BIDMC), an academic health care institution affiliated with Harvard University, has been an early adopter of electronic applications since the 1970s. Various departments of the medical center and the physician practice groups affiliated with it have implemented electronic health records, filmless imaging, and networked medical devices to such an extent that data storage at BIDMC now amounts to three petabytes and continues to grow at a rate of 25 percent a year. Initially, the greatest technical challenge was the cost and complexity of data storage. However, today the major focus is on transforming raw data into information, knowledge, and wisdom. This article discusses the data growth, increasing importance of analytics, and changing user requirements that have shaped the management of big data at BIDMC.

  14. Decay of Bethe-Salpeter kernel and bound states for the lattice four Fermi model

    Energy Technology Data Exchange (ETDEWEB)

    Anjos, Petrus Henrique Ribeiro dos [Universidade Federal de Goias (UFG), Goiania, GO (Brazil)

    2012-07-01

    Full text: We consider an imaginary-time functional integral formulation of the the lattice four-Fermi or Gross-Neveu model in d + 1 space-time dimensions (d = 1, 2, 3) and with N-component fermions. Let 0 < {kappa} << 1 be the hopping parameter, {lambda} > 0 the four-fermion coupling, m > 0 the bare fermion mass and take s x s spin matrices (s = 2,4). In a previous work, we derive spectral representations for two- and four- point correlation functions and use this result to show that the low-lying energy-momentum spectrum of this model exhibits isolated dispersion curves which are identified as single particles, multi-particle bands and bound states. In this previous analysis, the one-particle energy-momentum spectrum is obtained rigorously and is manifested by sN/2 isolated and identical dispersion curves, and the mass of particles has asymptotic value order of order 1n {kappa}. The existence of two-particle bound states above or below the two-particle band depends on whether Gaussian domination does hold or does not, respectively. Two-particle bound states emerge from solutions to a lattice Bethe-Salpeter equation that we solve in a ladder approximation. Within this approximation, the bound states have O({kappa}{sup 0}) binding energies at zero system momentum and their masses are all equal, with value {approx} -2 1n {kappa}. In this work, using the hyperplane decoupling method, we provide a detailed analysis of the decay of the Bethe-Salpeter kernel and show how to use this decay to extend the spectral result obtained in the ladder approximation to the full model. In particular, we prove that if the two-point function decays faster than the four-point function (Gaussian subjugation) then the only point in the mass spectrum above the one-particle mass and below the two-particle band is the bound state mass. (author)

  15. Excited states properties of organic molecules: from density functional theory to the GW and Bethe-Salpeter Green's function formalisms.

    Science.gov (United States)

    Faber, C; Boulanger, P; Attaccalite, C; Duchemin, I; Blase, X

    2014-03-13

    Many-body Green's function perturbation theories, such as the GW and Bethe-Salpeter formalisms, are starting to be routinely applied to study charged and neutral electronic excitations in molecular organic systems relevant to applications in photovoltaics, photochemistry or biology. In parallel, density functional theory and its time-dependent extensions significantly progressed along the line of range-separated hybrid functionals within the generalized Kohn-Sham formalism designed to provide correct excitation energies. We give an overview and compare these approaches with examples drawn from the study of gas phase organic systems such as fullerenes, porphyrins, bacteriochlorophylls or nucleobases molecules. The perspectives and challenges that many-body perturbation theory is facing, such as the role of self-consistency, the calculation of forces and potential energy surfaces in the excited states, or the development of embedding techniques specific to the GW and Bethe-Salpeter equation formalisms, are outlined.

  16. Massless L\\"uscher Terms and the Limitations of the AdS3 Asymptotic Bethe Ansatz

    CERN Document Server

    Abbott, Michael C

    2015-01-01

    In AdS5/CFT4 integrability the Bethe ansatz gives the spectrum of long strings, accurate up to exponentially small corrections. This is no longer true in AdS3, as we demonstrate here by studying L\\"uscher F-terms with a massless particle running in the loop. We apply this to the classic test of Hern\\'andez & L\\'opez, in which the su(2) sector Bethe equations (including one-loop dressing phase) should match the semiclassical string theory result for a circular spinning string. These calculations did not agree in AdS3xS3xT4, and we show that the sum of all massless L\\"uscher F-terms can reproduce the difference.

  17. Bethe Ansatz and the Spectral Theory of affine Lie algebra--valued connections. The non simply--laced case

    CERN Document Server

    Masoero, Davide; Valeri, Daniele

    2015-01-01

    We assess the ODE/IM correspondence for the quantum $\\mathfrak{g}$-KdV model, for a non-simply laced Lie algebra $\\mathfrak{g}$. This is done by studying a meromorphic connection with values in the Langlands dual algebra of the affine Lie algebra ${\\mathfrak{g}}^{(1)}$, and constructing the relevant $\\Psi$-system among subdominant solutions. We then use the $\\Psi$-system to prove that the generalized spectral determinants satisfy the Bethe Ansatz equations of the quantum $\\mathfrak{g}$-KdV model. We also consider generalized Airy functions for twisted Kac--Moody algebras and we construct new explicit solutions to the Bethe Ansatz equations. The paper is a continuation of our previous work on the ODE/IM correspondence for simply-laced Lie algebras.

  18. Bethe Ansatz and the Spectral Theory of Affine Lie algebra-Valued Connections II: The Non Simply-Laced Case

    Science.gov (United States)

    Masoero, Davide; Raimondo, Andrea; Valeri, Daniele

    2016-09-01

    We assess the ODE/IM correspondence for the quantum g -KdV model, for a non-simply laced Lie algebra g. This is done by studying a meromorphic connection with values in the Langlands dual algebra of the affine Lie algebra g^{(1)} , and constructing the relevant {Ψ} -system among subdominant solutions. We then use the {Ψ} -system to prove that the generalized spectral determinants satisfy the Bethe Ansatz equations of the quantum g -KdV model. We also consider generalized Airy functions for twisted Kac-Moody algebras and we construct new explicit solutions to the Bethe Ansatz equations. The paper is a continuation of our previous work on the ODE/IM correspondence for simply-laced Lie algebras.

  19. Bethe/Gauge correspondence in odd dimension: modular double, non-perturbative corrections and open topological strings

    CERN Document Server

    Sciarappa, Antonio

    2016-01-01

    Bethe/Gauge correspondence as it is usually stated is ill-defined in five dimensions and needs a "non-perturbative" completion; a related problem also appears in three dimensions. It has been suggested that this problem, probably due to incompleteness of Omega background regularization in odd dimension, may be solved if we consider gauge theory on compact $S^5$ and $S^3$ geometries. We will develop this idea further by giving a full Bethe/Gauge correspondence dictionary on $S^5$ and $S^3$ focussing mainly on the eigenfunctions of (open and closed) relativistic 2-particle Toda chain and its quantized spectral curve: these are most properly written in terms of non-perturbatively completed NS open topological strings. A key ingredient is Faddeev's modular double structure which is naturally implemented by the $S^5$ and $S^3$ geometries.

  20. New Closed Expression of Interaction Kernel in Bethe-Salpeter Equation for Quark-Antiquark Bound States

    Institute of Scientific and Technical Information of China (English)

    2005-01-01

    The interaction kernel in the Bethe-Salpeter equation for quark-antiquark bound states is derived newly from QCD in the case where the quark and the antiquark are of different flavors. The technique of the derivation is the usage of the irreducible decomposition of the Green's functions involved in the Bethe-Salpeter equation satisfied by the quark-antiquark four-point Green's function. The interaction kernel derived is given a closed and explicit expression which shows a specific structure of the kernel since the kernel is represented in terms of the quark, antiquark and gluon propagators and some kinds of quark, antiquark and/or gluon three, four, five and six-point vertices. Therefore,the expression of the kernel is not only convenient for perturbative calculations, but also suitable for nonperturbative investigations.

  1. The mixed-spin ternary-alloy in the form of ABpC1- p on the Bethe lattice

    Science.gov (United States)

    Albayrak, Erhan

    2011-04-01

    The ABpC1-p type of mixed ferromagnetic-ferrimagnetic ternary-alloy with A (spin-3/2), B (spin-1) and C (spin-5/2) ions was studied on the Bethe lattice with the odd numbered shells containing only A ions, while the even numbered shells either containing B or C ions randomly. The phase diagrams were obtained on the (R=|JAC|/JAB,kTc/JAB) and (p, kTc/JAB) planes for given values of p and R, respectively, with the coordination numbers z=3, 4, 5 and 6. The explicit dependence of the phase diagrams on z and each shell of the Bethe lattice having only one type of ion lead to some differences when compared with the previous works. The model presents one or two compensation temperatures for appropriate values of the system parameters.

  2. Bethe/Gauge correspondence in odd dimension: modular double, non-perturbative corrections and open topological strings

    Science.gov (United States)

    Sciarappa, Antonio

    2016-10-01

    Bethe/Gauge correspondence as it is usually stated is ill-defined in five dimensions and needs a "non-perturbative" completion; a related problem also appears in three dimensions. It has been suggested that this problem, probably due to incompleteness of Omega background regularization in odd dimension, may be solved if we consider gauge theory on compact S 5 and S 3 geometries. We will develop this idea further by giving a full Bethe/Gauge correspondence dictionary on S 5 and S 3 focussing mainly on the eigenfunctions of (open and closed) relativistic 2-particle Toda chain and its quantized spectral curve: these are most properly written in terms of non-perturbatively completed NS open topological strings. A key ingredient is Faddeev's modular double structure which is naturally implemented by the S 5 and S 3 geometries.

  3. Wars and suicides in Israel, 1948-2006.

    Science.gov (United States)

    Oron Ostre, Israel

    2012-05-01

    This paper reports the characteristics of suicides which occurred during the existential and the non-existential wars in Israel. It provides a first approximation of whether the suicide patterns in each war are consistent with the findings of Morselli and Durkheim, and whether their theoretical interpretations can serve as a preliminary guideline to explaining the Israeli case, which is characterized by short periods of war, social integration during some of the non-existential wars, and a sharp rise in post-war male suicide rates following all of the existential wars. Implications for further studies on the subject in Israel and elsewhere are discussed.

  4. New data to the earthworm fauna of Israel (Oligochaeta, Lumbricidae

    Directory of Open Access Journals (Sweden)

    Szederjesi, T.

    2013-11-01

    Full Text Available Elaborating several smaller earthworm samples collected in different parts of Israel resulted in recording 20 earthworm species including Bimastos parvus (Eisen, 1874 a North American peregrine which represents new record for the country. Three other species; Dendrobaena nevoi Csuzdi & Pavlíček, 1999, Healyella jordanis (Csuzdi & Pavlíček, 1999and Perelia shamsi Csuzdi & Pavlíček, 2005 were first recorded after their original descriptions. The present list of lumbricidearthworms recorded for Israel is raised to 28.

  5. El "cerco-muro" que está construyendo Israel

    OpenAIRE

    Frediani, Valeria

    2004-01-01

    Israel está construyendo un "cerco-muro" en la Ribera Occidental o "Cisjordania", con una extensión de 728 kilómetros, que aislará a 81 pueblos palestinos con 163.000 habitantes y a otros 210.000 que viven en el este de Jerusalén. Se extiende de norte a sur, violando la llamada "línea verde" que separaba Cisjordania del territorio israelí desde 1967. El gobierno de Ariel Sharon dice que el "cerco de seguridad" tiene por finalidad impedir el ingreso de suicidas palestinos. Los palestinos sosti...

  6. Calculation of Kaon Electromagnetic Form Factor in the Framework of Coupled Schwinger-Dyson and Bethe-Salpeter Formulation

    Institute of Scientific and Technical Information of China (English)

    WANG ZhiGang; WAN ShaoLong; WANG KeLin

    2001-01-01

    The kaon electromagnetic form factor is calculated in the framework of coupled Schwinger-Dyson equation in rainbow approximation and Bethe-Salpeter equation in ladder approximation with the modified fiat-bottom potential,which is the combination of the flat-bottom potential with considerations for the infrared and ultraviolet asymptotic behaviours of the effective quark-gluon coupling. All our numerical results give good fit to experimental values and other theoretical results.``

  7. The Modern Anti-Semitism Israel Model: An empirical relationship between modern anti-Semitism and opposition to Israel

    Directory of Open Access Journals (Sweden)

    Florette Cohen

    2011-04-01

    Full Text Available The current paper reviews our program of research that has examined some of the causes and consequences of anti-Semitism in which a new theoretical model of anti-Semitism is presented and tested in six experiments. The model proposes that mortality salience increases anti-Semitism and that anti-Semitism often manifests as hostility towards Israel. In accord with predictions, results show that existential fears lead to higher anti-Semitism and reduced support for Israel. Collectively, these results may serve as a preliminary contribution to explaining the continuation of anti-Semitism.

  8. Beth Lanham on Six Sigma in healthcare. Interview by Luc R. Pelletier.

    Science.gov (United States)

    Lamham, Beth

    2003-01-01

    Beth Lanham, BSN RN, is a Six Sigma Coordinator in the department of quality management, staff development and safety, at Froedtert Hospital in Milwaukee, WI. Ms. Lanham received her bachelor's degree from Otterbein College in Westerville, OH and has an extensive clinical and management background in critical care nursing. In April 2000, Ms. Lanham completed the Six Sigma Black Belt training program through the American Society for Quality. She is currently working as a Six Sigma Black Belt and is actively involved with numerous committees and projects aimed at reducing medical errors and enhancing patient safety. Ms. Lanham has presented Six Sigma initiatives at the International Quality Congress sponsored by the American Society for Quality, the University Healthcare Consortium National Conference, the International Quality and Productivity Center National Conference on Six Sigma for Healthcare Providers, and the American Hospital Association Patient Safety Leadership Fellowship Retreat. Six Sigma projects at Froedtert Hospital are aimed at reducing errors associated with patient controlled analgesia pumps, continuous intravenous infusions, narcotic sedation in postoperative patients, insulin therapy, and handling of laboratory specimens. Six Sigma has also been applied toward reducing falls on a rehabilitation unit.

  9. Pressure-velocity relations in reservoir rocks: Modified MacBeth's equation

    Science.gov (United States)

    Grana, Dario

    2016-09-01

    The knowledge of the saturation and pressure effects on elastic properties is a key factor in reservoir monitoring. The relation between saturation changes and velocity variations is well known in rock physics and at seismic frequency it can be satisfactorily described by Gassmann's equations. The pressure effect still requires deeper investigations in order to be included in rock physics models for 4D studies. Theoretical models of velocity-pressure relations often do not match lab measurements, or contain empirical constants or theoretical parameters that are difficult to calibrate or do not have a precise physical meaning. In this work, I present a new model to describe the pressure sensitivity of elastic moduli for clastic rocks. The proposed model is an extension of MacBeth's relations. These equations are then integrated within a complete rock physics model to describe the relation between rock properties (porosity and clay content), dynamic attributes (saturation and pressure) and elastic properties. The proposed model is calibrated with laboratory measurements of dry samples over a wide range of pressure variations and then applied to well data to simulate different production scenarios. The complete rock physics model can then be used in time-lapse inversion to predict the distribution of dynamic property changes in the reservoir within an inversion workflow for reservoir monitoring.

  10. Meson masses in large Nf QCD from Bethe-Salpeter equation

    CERN Document Server

    Harada, M; Yamawaki, K; Harada, Masayasu; Kurachi, Masafumi; Yamawaki, Koichi

    2003-01-01

    We solve the homogeneous Bethe-Salpeter (HBS) equation for the scalar, pseudoscalar, vector and axial-vector bound states of quark and anti-quark in large Nf QCD with the improved ladder approximation in the Landau gauge. Quark mass function in the HBS equation is obtained from the Schwinger-Dyson (SD) equation in the same approximation for the consistency with the chiral symmetry. Amazingly, due to the fact that the two-loop running coupling of large Nf QCD is explicitly written in terms of an analytic function, large Nf QCD turns out to be the first example in which the SD equation can be solved in the complex plane and hence the HBS equation directly in the time-like region. We find that approaching the chiral phase transition point from the broken phase, the scalar, vector and axial-vector meson masses vanish to zero with the same scaling behavior, all degenerate with the massless pseudoscalar meson. This may suggest a new type of manifestation of the chiral symmetry restoration in large Nf QCD.

  11. An exact solution on the ferromagnetic face-cubic spin model on a Bethe lattice

    Science.gov (United States)

    Ohanyan, V. R.; Ananikyan, L. N.; Ananikian, N. S.

    2007-04-01

    The lattice spin model with Q-component discrete spin variables restricted to have orientations orthogonal to the faces of Q-dimensional hypercube is considered on the Bethe lattice, the recursive graph which contains no cycles. The partition function of the model with dipole-dipole and quadrupole-quadrupole interaction for arbitrary planar graph is presented in terms of double graph expansions. The latter is calculated exactly in case of trees. The system of two recurrent relations (RR) which allows to calculate all thermodynamic characteristics of the model is obtained. The correspondence between thermodynamic phases and different types of fixed points of the RR is established. Using the technique of simple iterations the plots of the zero field magnetization and quadrupolar moment are obtained. Analyzing the regions of stability of different types of fixed points of the system of recurrent relations the phase diagrams of the model are plotted. For Q⩽2 the phase diagram of the model is found to have three tricritical points, whereas for Q>2 there are one triple and one tricritical points.

  12. Fast and Accurate Electronic Excitations in Cyanines with the Many-Body Bethe-Salpeter Approach.

    Science.gov (United States)

    Boulanger, Paul; Jacquemin, Denis; Duchemin, Ivan; Blase, Xavier

    2014-03-11

    The accurate prediction of the optical signatures of cyanine derivatives remains an important challenge in theoretical chemistry. Indeed, up to now, only the most expensive quantum chemical methods (CAS-PT2, CC, DMC, etc.) yield consistent and accurate data, impeding the applications on real-life molecules. Here, we investigate the lowest lying singlet excitation energies of increasingly long cyanine dyes within the GW and Bethe-Salpeter Green's function many-body perturbation theory. Our results are in remarkable agreement with available coupled-cluster (exCC3) data, bringing these two single-reference perturbation techniques within a 0.05 eV maximum discrepancy. By comparison, available TD-DFT calculations with various semilocal, global, or range-separated hybrid functionals, overshoot the transition energies by a typical error of 0.3-0.6 eV. The obtained accuracy is achieved with a parameter-free formalism that offers similar accuracy for metallic or insulating, finite size or extended systems.

  13. Heavy quarkonium potential from Bethe-Salpeter wave function on the lattice

    CERN Document Server

    Kawanai, Taichi

    2013-01-01

    We propose a novel method for the determination of the interquark potential together with quark "kinetic mass'' $m_Q$ from the equal-time $Q\\bar{Q}$ Bethe-Salpeter (BS) amplitude in lattice QCD. Our approach allows us to calculate spin-dependent $Q\\bar{Q}$ potentials, e.g. the spin-spin potential, as well. In order to investigate several systematic uncertainties on such $Q\\bar{Q}$ potentials, we carry out lattice QCD simulations using quenched gauge configurations generated with the single plaquette gauge action with three different lattice spacings, $a \\approx$ 0.093, 0.068 and 0.047 fm, and two different physical volumes, $L \\approx$ 2.2 and 3.0 fm. For heavy quarks, we employ the relativistic heavy quark (RHQ) action which can control large discretization errors introduced by large quark mass $m_Q$. The spin-independent central $Q\\bar{Q}$ potential for the charmonium system yields the "Coulomb plus linear'' behavior with good scaling and small volume dependence. We explore the quark mass dependence over th...

  14. Glassy behaviour of random field Ising spins on Bethe lattice in external magnetic field

    Institute of Scientific and Technical Information of China (English)

    Khalid Bannora; Galal Ismail; Wafaa Hassan

    2011-01-01

    The thermodynamics and the phase diagram of random field Ising model (RFIM) on Bethe lattice are studied by using a replica trick. This lattice is placed in an external magnetic field (B). A Gaussian distribution of random field (hi) with zero mean and variance = H2RF is considered. The free-energy (F), the magnetization (M) and the order parameter (q) are investigated for several values of coordination number (z). The phase diagram shows several interesting behaviours and presents tricritical point at critical temperature TC = J/k and when HRF = 0 for finite z. The free-energy (F) values increase as T increases for different intensities of random field (HRF) and finite z. The internal energy (U) has a similar behaviour to that obtained from the Monte Carlo simulations. The ground state of magnetization decreases as the intensity of random field HRF increases. The ferromagnetic (FM)-paramagnetic (PM) phase boundary is clearly observed only when z →∞. While FM-PM-spin glass (SG) phase boundaries are present for finite z. The magnetic susceptibility (X) shows a sharp cusp at TC in a small random field for finite z and rounded different peaks on increasing HRF.

  15. Solving the inhomogeneous Bethe-Salpeter equation in Minkowski space: the zero-energy limit

    Energy Technology Data Exchange (ETDEWEB)

    Frederico, Tobias [Instituto Tecnologico de Aeronautica, DCTA, Dept. de Fisica, Sao Paulo (Brazil); Salme, Giovanni [Istituto Nazionale di Fisica Nucleare, Sezione di Roma, Roma (Italy); Viviani, Michele [Istituto Nazionale di Fisica Nucleare, Sezione di Pisa, Pisa (Italy)

    2015-08-15

    The inhomogeneous Bethe-Salpeter equation for an interacting system, composed of two massive scalars exchanging a massive scalar, is numerically investigated in the ladder approximation directly in Minkowski space, by using for the first time in the continuum an approach based on the Nakanishi integral representation. In this paper, the limiting case of zero-energy states is considered, thus extending an approach that has already been successfully applied to bound states. The numerical values of scattering lengths, are calculated for several values of the Yukawa coupling constant, by using two different integral equations that stem from the Nakanishi framework. Those low-energy observables are compared with (1) the analogous quantities recently obtained in literature, within a totally different framework, and (2) the non-relativistic evaluations, to illustrate the relevance of a nonperturbative, genuine field theoretical treatment in Minkowski space, even in the low-energy regime. Moreover, dynamical functions, like the Nakanishi weight functions and the distorted part of the zero-energy light-front wave functions are also presented. Interestingly, a highly non-trivial issue related to the abrupt change in the width of the support of the Nakanishi weight function, when the zero-energy limit is approached, is elucidated, ensuring a sound basis to the forthcoming evaluation of phase shifts. (orig.)

  16. Effects of the projectile electronic structure on Bethe-Bloch stopping parameters for Ag

    Energy Technology Data Exchange (ETDEWEB)

    Moussa, D., E-mail: djamelmoussa@gmail.co [USTHB, Faculte de Physique, B.P. 32, 16111 Bab-Ezzouar, Algiers (Algeria); Damache, S. [Division de Physique, CRNA, 02 Bd. Frantz Fanon, B.P. 399 Alger-gare, Algiers (Algeria); Ouichaoui, S., E-mail: souichaoui@gmail.co [USTHB, Faculte de Physique, B.P. 32, 16111 Bab-Ezzouar, Algiers (Algeria)

    2010-06-15

    Energy losses of protons and alpha particles in silver have been accurately measured under the same experimental conditions over the velocity range E{sub lab}=(0.192-2.595) MeV/amu using the transmission method. Deduced S(E) stopping powers are compared to most accurate ones from the literature, to values generated by the SRIM-2008 computer code and to ICRU-49 compilation. They were analyzed in the framework of modified Bethe-Bloch theory for extracting Ag target mean excitation and ionization potential, I, and Barkas effect parameter, b. Values of (466{+-}5) eV and 1.20{+-}0.01 for these two parameters were inferred from the proton S(E) data while the alpha particle data yielded values of (438{+-}4) eV and 1.38{+-}0.01, respectively. The (I, b) stopping parameters thus exhibit opposite variations as the projectile charge increases, similarly as we have found previously for nickel . This can be ascribed only to an effect of the projectile electronic structure at low velocities. The obtained results are discussed in comparison to previous ones reported in the literature.

  17. Numerical Generalization of the Bethe-Weizs\\"{a}cker Mass Formula

    CERN Document Server

    Mavrodiev, S Cht

    2016-01-01

    Based on the AME2012 nuclear database and the semi-empirical mass formula of Bethe and von Weizs\\"{a}cker we formulated and solved the inverse problem for its numerical generalization in step by step way. The established parametrization describes the measured nuclear masses of 2564 isotopes with an accuracy better than 2.6 MeV, starting from the number of protons $Z=1$ and number of neutrons $N=1$. The set of parameters $\\{a_{i}\\}$, $i=1,\\dots, {N}_{\\rm{total}}$ of our fit represent the solution of an overdetermined system of algebraic equations, which represent equalities between the binding energy $E_{B}^{\\rm{Expt}}(A_{j},Z_{j})$ and its model $E_{B}^{\\rm{Th}}(A_{j},Z_{j},\\{a_{i}\\})$, where $j=1,\\dots,2564$. The solution of the overdetermined system of equations has been obtained with the help of the Aleksandrov's auto-regularization method of Gauss-Newton type for ill-posed problems (Dubna FORTRAN code REGN). The explicit form of unknown functions was discovered in a step-by-step way using the LCH procedur...

  18. "My Heart Is in the East and I Am in the West": Enduring Questions of Israel Education in North America

    Science.gov (United States)

    Zakai, Sivan

    2014-01-01

    By examining writing about Israel education since the founding of the State, this paper highlights three questions that have surfaced repeatedly in Jewish educational discourse: What is the purpose of teaching American Jews about Israel? Who is best equipped to teach American Jews about Israel? How can Israel education foster positive…

  19. Arab Parents' Involvement in School Reform in Israel

    Science.gov (United States)

    Arar, Khalid; Abu-Asbah, Khaled; Nasra, Muhammed Abu

    2014-01-01

    Current research indicates that parental involvement positively influences children's academic success. This study investigates parental involvement in the Arab education system in Israel, highlighting involvement in the New Horizon reform. We interviewed school principals and parent committee chairpersons from 15 Arab schools. The study confirmed…

  20. Death and Dying Anxiety among Elderly Arab Muslims in Israel

    Science.gov (United States)

    Azaiza, Faisal; Ron, Pnina; Shoham, Meyrav; Gigini, Ibrahim

    2010-01-01

    Death and dying anxiety were examined among elderly Arab Muslims in Israel. A total of 145 people aged 60 and over were interviewed using a standardized questionnaire. Nursing home residents reported higher death anxiety than others; women and uneducated participants reported greater levels of fear of death and dying than others. There were no…

  1. School-Based Management: Arab Education System in Israel

    Science.gov (United States)

    Arar, Khalid; Abu-Romi, Amal

    2016-01-01

    Purpose: The purpose of this paper is to investigate the issue of school-based management (SBM) in elementary schools in the Arab education system in Israel, comparing schools experienced in SBM, schools beginning to use SBM and schools that do not use SBM. Design/methodology/approach: A quantitative research used a structured questionnaire to…

  2. Teachers' "Contact" at the Integrated Bilingual Schools in Israel

    Science.gov (United States)

    Bekerman, Zvi

    2012-01-01

    This article is about teachers working at the bilingual integrated schools in Israel. The study allows us to problematise and critically approach cross-cultural encounters on the basis of contact theory, which posits understandings regarding social interaction across cultural-political boundaries. It exposes potential differences between the…

  3. Parental Participation Fees in School Expenses in Israel

    Science.gov (United States)

    Shaked, Haim

    2016-01-01

    Purpose: Many countries throughout the world provide all children with free education. However, sometimes there are user charges in publically funded schools worldwide. The purpose of this paper is to explore parental participation fees in school expenses in Israel, depicting the current situation and analyzing its implications.…

  4. Harnessing Teacher Potential as Israel Education Curriculum Developers

    Science.gov (United States)

    Katz, Meredith

    2015-01-01

    In this article I investigate how one group of teachers deliberated about Israel education with the intention to "modify the myth" as they engaged in curriculum reform. I begin from the idea that curriculum development should be an in-house endeavor that encourages faculty to embrace their roles as curricular decision-makers.…

  5. Changing Attitudes of High School Students in Israel toward Homosexuality

    Science.gov (United States)

    Eick, Uri; Rubinstein, Tanya; Hertz, Shai; Slater, Aylon

    2016-01-01

    Hoshen, the Hebrew acronym for "Education & Change", is a nonprofit, nationwide education and information center for the lesbian, gay, bisexual, and transgender (LGBT) community in Israel. The main educational method Hoshen uses is the personal story told by volunteers. The present study aimed to examine whether this activity,…

  6. Health Policy for Persons with Intellectual Disability: Experiences from Israel

    Directory of Open Access Journals (Sweden)

    Ilana Halperin

    2005-01-01

    Full Text Available Intellectual disability (ID is a life-long disability characterized by impaired cognitive and adaptive skills. Over the past few decades, a shift has occurred in the conceptualization and treatment of people with ID and research in health policy and health-care delivery has become increasingly global with a notable disparity between the developed and developing world. This review presents a literature overview of global health policy for ID with the intent to focus specifically on the policy and treatment within Israel. The methodology involved sites visits to care centers, discussions with stakeholders in health policy, and a literature review. We believe that Israel is in a unique position between a developed and developing culture. In particular, the distinct problems faced by the Arab and Bedouin community in terms of ID must be formally accounted for in Israel's future policies. Research from the developing world would be instructive to this end. The global approach in this presentation led to certain policy recommendations that take into account the uniqueness of Israel's position from a social, economic, religious, and demographic perspective. It is the hope that this paper will lead to an increased awareness of the challenges faced by persons with ID and their providers in all sectors of Israeli society and that the necessary policy recommendations will ultimately be adopted.

  7. Mapping patterns and characteristics of fatal road accidents in Israel

    DEFF Research Database (Denmark)

    Prato, Carlo Giacomo; Gitelman, Victoria; Bekhor, Shlomo

    2010-01-01

    This paper intends to provide a broad picture of traffic accidents in Israel by uncovering their patterns and determinants in order to answer an increasing need of designing preventive measures, addressing particular situations and targeting specific social groups with the ultimate objective...

  8. Teacher Education for Classroom Management in Israel: Structures and Orientations

    Science.gov (United States)

    Ben-Peretz, Miriam; Eilam, Billie; Landler-Pardo, Gabi

    2011-01-01

    In our paper, we examine how classroom management is taught in teacher education in Israel. Three questions are addressed: (1) What is the structure of programs for classroom management (site, timing, duration, number of courses, mandatory/optional)? (2) How is classroom management conceived (technical/pedagogical, individual/systemic)? (3) Does…

  9. Can the IDP label be used in Israel/Palestine?

    Directory of Open Access Journals (Sweden)

    Dina Abou Samra

    2006-08-01

    Full Text Available Identifying IDPs in Israel and in the OPT – on the basis ofthe definition provided by the Guiding Principles on InternalDisplacement1 – is difficult. UNRWA considers all thosewho lost their homes in 1948 as refugees, yet the GuidingPrinciples define IDPs as those who have fled their homes butwho have not crossed an internationally recognised border.

  10. Micropeptins from Microcystis sp. collected in Kabul Reservoir, Israel

    DEFF Research Database (Denmark)

    Bladt, Tanja Thorskov; Kalifa-Aviv, Sivan; Larsen, Thomas Ostenfeld;

    2014-01-01

    Three new micropeptins, micropeptin KR1030, KR1002 and KR998 and the known microcyclamide GL546A were isolated from the extract of Microcystis sp. bloom material collected in Kabul Reservoir, Israel. The planar structures of the compounds were determined by homonuclear and inverse-heteronuclear 2D-NMR...

  11. Pediatric telephone advice: a new medical service in Israel.

    Science.gov (United States)

    Sher, C; Mimouni, M; Weitzen, T; Waisman, Y

    1994-08-01

    Although controversy still exists about dispensing medical advice over the telephone, such services are widely offered by pediatricians in the USA. In Israel, however, such services have not yet been developed. In a joint project of the Moked Keshev (a private medical help line) at Magen David Adom (national ambulance service) and the Children's Medical Center of Israel, the first pediatric telephone advice service in Israel was established. In this study we analyzed 512 consecutive incoming calls received during the first 11 months of service operation. Of these, 42% of calls concerned children in the 1 month to 1 year age group. Unexpectedly, calls were almost evenly distributed throughout the week with a slight decrease on Fridays and Saturdays (sabbath), and 45.7% of the calls were received during the morning shift. The three most common reasons for contact were: of a general nature such as fever (23%), gastrointestinal problems (19%), and medical questions (18%). In only 20.7% of the cases were the patients advised to go to the nearest hospital emergency department, emphasizing the non-emergent nature of the calls. At the time of follow-up (within 24 h), patient status was assessed as: improved (73.7%), same (22.6%), and worse (3.8%). Of those who became worse, none required an emergency department evaluation. The present study demonstrates that a Pediatric Telephone Advice Service in Israel is technically functional, medically safe, and contributes to the health management of children.

  12. The Collection Menasseh Ben Israel, CD-rom

    NARCIS (Netherlands)

    Haas, de J.J.M.; Offenberg, A.K.; Ootjers, M.G.

    1998-01-01

    The Bibliotheca Rosenthaliana, Department of Judaica and Hebraica, Amsterdam University Library, harbours many unique research collections. One of the most prominent consists of the editions printed in the seventeenth century by Menasseh Ben Israel (1604), who established the first Hebrew printing o

  13. "Hello pacifist" War Resisters in Israel's First Decade

    Directory of Open Access Journals (Sweden)

    Marcella Simoni

    2013-07-01

    Full Text Available This paper discusses the history, organization, networks and political outlook of the state of Israel’s first conscientious objectors (COs in the 1950s, and the consequences they confronted, individually and as a group. Despite it being a very unlikely period for the foundation of such a movement, a small branch of ‘War Resisters’ International’ (WRI, 1921 was established in Israel in 1947. This paper discusses what can the attitudes towards COs tell of the early history of the State of Israel, especially at a time when conscientious objection was not recognized as a right almost anywhere. The history of the first Israeli COs breaks a number of assumptions, albeit contradictory ones: on the one hand it strengthens the image of Israel as a militaristic country; on the other, it shows that institutions were in Israel more tolerant towards COs than other countries; it shows that COs were the supporters of an non ethnically homogenous society and, most of all, that, even in a decade such as the 1950s, a different and deep voice was trying to make itself heard. This paper is based on primary sources from the WRI archives and on the correspondence that Israeli COs entertained with WRI in the 1950s.

  14. The National Mentoring Program in Israel--Challenges and Achievements

    Science.gov (United States)

    Zorman, Rachel; Rachmel, Shlomit; Bashan, Zipi

    2016-01-01

    The National Mentoring Program was created in 2009 by the Division for Gifted and Outstanding Students in the Ministry of Education and is implemented by the Szold Institute. The program aims to cultivate future leaders in Israel. Highly gifted 10th and 11th graders are matched with top rate professionals in students' areas of interest. They work…

  15. Deportación de sursudaneses desde Israel

    OpenAIRE

    Lijnders, Laurie

    2013-01-01

    La agresiva campaña de Israel de detención y deportación de solicitantes de asilo de Sudán del Sur contraviene el principio de no devolución y las normas internacionales sobre el retorno voluntario y digno.

  16. Lack of peaceful resolution with Israel: economic cost for Palestinians

    NARCIS (Netherlands)

    P.M.C. de Boer (Paul)

    2008-01-01

    textabstractWe propose to estimate the economic cost for Palestine and for Palestinian residents due to the lack of peaceful resolution with Israel. Thereto we make use of the consensus estimates of the International Monetary Fund (IMF) and the World Bank (WB) of real growth rates of economic variab

  17. Special Education in the Bedouin Community in Israel's Negev Region

    Science.gov (United States)

    Manor-Binyamini, Iris

    2007-01-01

    The purpose of this article is to present an overview of the special education sector of the Bedouin Arab community in southern Israel. The paper opens with the study rationale and the importance of the subject. The review is based on a thematic analysis of content taken from diverse sources. The analysis showed five principle themes: (a) numerous…

  18. Trade opportunities for Dutch agribusiness in Turkey and Israel

    NARCIS (Netherlands)

    Berkum, van S.; Kelholt, H.J.

    2007-01-01

    This study analyses the agricultural trade relations of the Netherlands with Turkey and with Israel, and investigates the present market positions of the Dutch agribusiness in the two countries. Based on a review of market and agri-food supply chain developments, opportunities for expansion of trade

  19. Community healthcare in Israel: quality indicators 2007-2009

    Directory of Open Access Journals (Sweden)

    Jaffe Dena H

    2012-01-01

    Full Text Available Abstract Background The National Program for Quality Indicators in Community Healthcare in Israel (QICH was developed to provide policy makers and consumers with information on the quality of community healthcare in Israel. In what follows we present the most recent results of the QICH indicator set for 2009 and an examination of changes that have occurred since 2007. Methods Data for 28 quality indicators were collected from all four health plans in Israel for the years 2007-2009. The QICH indicator set examined six areas of healthcare: asthma, cancer screening, cardiovascular health, child health, diabetes and immunizations for older adults. Results Dramatic increases in the documentation of anthropometric measures were observed over the measurement period. Documentation of BMI for adolescents and adults increased by 30 percentage points, reaching rates of 61% and 70%, respectively, in 2009. Modest increases (3%-7% over time were observed for other primary prevention quality measures including immunizations for older adults, cancer screening, anemia screening for young children, and documentation of cardiovascular risks. Overall, rates of recommended care for chronic diseases (asthma, cardiovascular disease and diabetes increased over time. Changes in rates of quality care for diabetes were varied over the measurement period. Conclusions The overall quality of community healthcare in Israel has improved over the past three years. Future research should focus on the adherence to quality indicators in population subgroups and compare the QICH data with those in other countries. In addition, one of the next steps in assessing and further improving healthcare quality in Israel is to relate these process and performance indicators to health outcomes.

  20. Promoting Justices: Media Coverage of Judicial Nominations in Israel

    Directory of Open Access Journals (Sweden)

    Bryna Bogoch

    2014-10-01

    Full Text Available This paper compares the framing of the coverage of judicial appointments in Israel in 2008 in two newspapers with nomination news from preceding years and to the patterns of press coverage in the U.S. A content analysis of 101 Supreme Court nomination articles indicated that unlike the political frame of American coverage, the press in Israel preserves its ostensible commitment to the professionalism of judges while linking the Supreme Court to political maneuvering in the selection of candidates. These findings are discussed within the context of the media's role in constructing judicial nominations as a debate about the role of the Supreme Court in Israeli society. Este artículo compara el marco de la cobertura de los nombramientos judiciales en Israel en 2008 en dos periódicos, con noticias de nombramientos de años anteriores y en los Estados Unidos, con los patrones de cobertura de prensa en los EE.UU. Un análisis de contenido de 101 artículos de nombramientos de la Corte Suprema indicó que, a diferencia del marco político de la cobertura de América, la prensa en Israel consierva su aparente compromiso con la profesionalidad de los jueces, a pesar de que relaciona la Corte Suprema con maniobras políticas en la selección de candidatos. Estos resultados se discuten en el contexto del papel de los medios de comunicación en la construcción de los nombramientos judiciales como un debate sobre el papel de la Corte Suprema en la sociedad israelí. DOWNLOAD THIS PAPER FROM SSRN: http://ssrn.com/abstract=2478756

  1. Launching the Israel Journal of Health Policy Research: Why a new journal? Why now? Why open access?

    OpenAIRE

    2012-01-01

    Abstract The Israel Journal of Health Policy Research (IJHPR) is a new, open access journal. IJHPR seeks to promote intensive intellectual interactions among scholars and practitioners from Israel and other countries regarding all aspects of health policy, with particular attention to Israel. The ultimate aim of these interactions is to contribute to the development of health policy in Israel, and also to foster wider communication between health scientists and policy analysts in Israel and t...

  2. Efficient implementation of core-excitation Bethe-Salpeter equation calculations

    Science.gov (United States)

    Gilmore, K.; Vinson, John; Shirley, E. L.; Prendergast, D.; Pemmaraju, C. D.; Kas, J. J.; Vila, F. D.; Rehr, J. J.

    2015-12-01

    We present an efficient implementation of the Bethe-Salpeter equation (BSE) method for obtaining core-level spectra including X-ray absorption (XAS), X-ray emission (XES), and both resonant and non-resonant inelastic X-ray scattering spectra (N/RIXS). Calculations are based on density functional theory (DFT) electronic structures generated either by ABINIT or QuantumESPRESSO, both plane-wave basis, pseudopotential codes. This electronic structure is improved through the inclusion of a GW self energy. The projector augmented wave technique is used to evaluate transition matrix elements between core-level and band states. Final two-particle scattering states are obtained with the NIST core-level BSE solver (NBSE). We have previously reported this implementation, which we refer to as OCEAN (Obtaining Core Excitations from Ab initio electronic structure and NBSE) (Vinson et al., 2011). Here, we present additional efficiencies that enable us to evaluate spectra for systems ten times larger than previously possible; containing up to a few thousand electrons. These improvements include the implementation of optimal basis functions that reduce the cost of the initial DFT calculations, more complete parallelization of the screening calculation and of the action of the BSE Hamiltonian, and various memory reductions. Scaling is demonstrated on supercells of SrTiO3 and example spectra for the organic light emitting molecule Tris-(8-hydroxyquinoline)aluminum (Alq3) are presented. The ability to perform large-scale spectral calculations is particularly advantageous for investigating dilute or non-periodic systems such as doped materials, amorphous systems, or complex nano-structures.

  3. Simple polynomial approximation to modified Bethe formula low-energy electron stopping powers data

    Energy Technology Data Exchange (ETDEWEB)

    Taborda, A., E-mail: ana.taborda@irsn.fr [Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PRP-HOM/SDI/LEDI, BP-17, 92262 Fontenay-aux-Roses (France); Desbrée, A. [Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PRP-HOM/SDI/LEDI, BP-17, 92262 Fontenay-aux-Roses (France); Reis, M.A. [C" 2TN, Campus Tecnológico e Nuclear, Instituto Superior Técnico, Universidade de Lisboa, EN10 km139.7, 2685-066 Bobadela LRS (Portugal)

    2015-08-01

    A recently published detailed and exhaustive paper on cross-sections for ionisation induced by keV electrons clearly shows that electron phenomena occurring in parallel with X-ray processes may have been dramatically overlooked for many years, mainly when low atomic number species are involved since, in these cases, the fluorescence coefficient is smaller than the Auger yield. An immediate problem is encountered while attempting to tackle the issue. Accounting for electron phenomena requires the knowledge of the stopping power of electrons within, at least, a reasonably small error. Still, the Bethe formula for stopping powers is known to not be valid for electron energies below 30 keV, and its use leads to values far off experimental ones. Recently, a few authors have addressed this problem and both detailed tables of electron stopping powers for various atomic species and attempts to simplify the calculations, have emerged. Nevertheless, its implementation in software routines to efficiently calculate keV electron effects in materials quickly becomes a bit cumbersome. Following a procedure already used to establish efficient methods to calculate ionisation cross-sections by protons and alpha particles, it became clear that a simple polynomial approximation could be set, which allows retrieving the electronic stopping powers with errors of less than 20% for energies above 500 eV and less than 50% for energies between 50 eV and 500 eV. In this work, we present this approximation which, based on just six parameters, allows to recover electron stopping power values that are less than 20% different from recently published experimentally validated tabulated data.

  4. Hans A. Bethe Prize: Neutron Stars and Core-Collapse Supernovae

    Science.gov (United States)

    Lattimer, James

    2015-04-01

    Core-collapse supernovae lead to the formation of neutron stars, and both are sensitive to the dense matter equation of state. Hans Bethe first recognized that the matter in the collapsing core of a massive star has a relatively low entropy which prevents nuclear dissociation until nuclei merge near the nuclear saturation density. This recognition means that collapse continues until the core exceeds the saturation density. This prediction forms the foundation for modern simulations of supernovae. These supernovae sample matter up to about twice nuclear saturation density, but neutron stars are sensitive to the equation of state both near the saturation density and at several times higher densities. Two important recent developments are the discovery of two-solar mass neutron stars and refined experimental determinations of the behavior of the symmetry energy of nuclear matter near the saturation density. Combined with the assumption of causality, they imply that the radii of observed neutron stars are largely independent of their mass, and that this radius is in the range of 11 to 13 km. These theoretical results are not only consistent with expectations from theoretical studies of pure neutron matter, but also accumulated observations of both bursting and cooling neutron stars. In the near future, new pulsar timing data, which could lead to larger measured masses as well as measurements of moments of inertia, X-ray observations, such as from NICER, of bursting and other sources, and gravitational wave observations of neutron stars in merging compact binaries, will provide important new constraints on neutron stars and the dense matter equation of state. DOE DE-FG02-87ER-40317.

  5. Archaeological Geophysics in Israel: Past, Present and Future

    Science.gov (United States)

    Eppelbaum, L. V.

    2009-04-01

    Israel is a country with diverse and rapidly changeable environments where is localized a giant number of archaeological objects of various age, origin and size. The archaeological remains occur in a complex (multi-layered and variable) geological-archaeological media. It is obvious that direct archaeological excavations cannot be employed at all localized and supposed sites taking into account the financial, organizational, ecological and other reasons. Therefore, for delineation of buried archaeological objects, determination their physical-geometrical characteristics and classification, different geophysical methods are widely applied. The number of employed geophysical methodologies is constantly increasing and now Israeli territory may be considered as a peculiar polygon for various geophysical methods testing. The geophysical investigations at archaeological sites in Israel could be tentatively divided on three stages: (1) past [- 1990] (e.g., Batey, 1987; Ben-Menahem, 1979; Dolphin, 1981; Ginzburg and Levanon, 1977; Karcz et al., 1977; Karcz and Kafri, 1978; Tanzi et al., 1983; Shalem, 1949; Willis, 1928), (2) present [1991 - 2008] (e.g., Bauman et al., 2005; Ben-Dor et al., 1999; Ben-Yosef et al., 2008; Berkovitch et al., 2000; Borradaile, 2003; Boyce et al., 2004; Bruins et al., 2003; Daniels et al., 2003; Ellenblum et al., 1998; Eppelbaum, 1999, 2000a, 2000b, 2005, 2007a, 2007b, 2008b; Eppelbaum and Ben-Avraham, 2002; Eppelbaum and Itkis, 2000, 2001; 2003, 2009; Eppelbaum et al., 2000a, 2000b, 2001a, 2001b, 2003a, 2003b, 2004a, 2004b; 2005, 2006a, 2006b, 2006c, 2006d, 2007, 2009a, 2009b; Ezersky et al., 2000; Frumkin et al., 2003; Itkis and Eppelbaum, 1998; Itkis, 2003; Itkis et al., 2002, 2003, 2008; Jol et al., 2003, 2008; Kamai and Hatzor, 2007; Khesin et al., 1996; Korjenkov and Mazor, 1999; Laukin et al., 2001; McDermott et al., 1993; Marco, 2008; Marco et al., 2003; Nahas et al., 2006; Neishtadt et al., 2006; Nur and Ron, 1997; Paparo, 1991; Porat

  6. Magnetization process in the exactly solved spin-1/2 Ising-Heisenberg model on decorated Bethe lattices

    Directory of Open Access Journals (Sweden)

    J. Strečka

    2012-12-01

    Full Text Available The spin-1/2 Ising-Heisenberg model on diamond-like decorated Bethe lattices is exactly solved in the presence of the longitudinal magnetic field by combining the decoration-iteration mapping transformation with the method of exact recursion relations. In particular, the ground state and low-temperature magnetization process of the ferrimagnetic version of the considered model is investigated in detail. Three different magnetization scenarios with up to two consecutive fractional magnetization plateaus were found, whereas the intermediate magnetization plateau may either correspond to the classical ferrimagnetic spin arrangement and/or the field-induced quantum ferrimagnetic spin ordering without any classical counterpart.

  7. Relevance of various Dirac covariants in hadronic Bethe-Salpeter wave functions in electromagnetic decays of ground state vector mesons

    CERN Document Server

    Bhatnagar, Shashank; Mengesha, Yikdem

    2013-01-01

    In this work we have employed Bethe-Salpeter equation (BSE) under covariant instantaneous ansatz (CIA) to study electromagnetic decays of ground state equal mass vector mesons: $\\rho$, $\\omega$, $\\phi$, $\\psi$ and $Y$ through the process $V\\rightarrow\\gamma*\\rightarrow e^+ + e^-$. We employ the generalized structure of hadron-quark vertex function $\\Gamma$ which incorporates various Dirac structures from their complete set order-by-order in powers of inverse of meson mass. The electromagnetic decay constants for the above mesons are calculated using the leading order (LO) and the next-to-leading order (NLO) Dirac structures. The relevance of various Dirac structures in this calculation is studied.

  8. Generalized structure of hadron-quark vertex function in Bethe- Salpeter framework: Applications to leptonic decays of V-mesons

    CERN Document Server

    Bhatnagar, S; Bhatnagar, Shashank; Li, Shi-Yuan

    2006-01-01

    We employ the framework of Bethe-Salpeter equation under Covariant Instantaneous Ansatz (CIA) to study the leptonic decays of vector mesons. The calculations of decay constants f_v for rho, phi and omega mesons have been performed adopting a generalized structure of the hadron-quark vertex function Gamma which is generalized to include various Dirac covariants (other than the leading covariant i gamma cdot epsilon) from the complete set of covariants in accordance with a naive power counting rule, which allows the incorporation of them order by order in powers of the inverse of the meson mass.

  9. Lorentz contraction of the equal-time Bethe-Salpeter amplitude in two-dimensional massless quantum electrodynamics

    Energy Technology Data Exchange (ETDEWEB)

    Radozycki, Tomasz [Cardinal Stefan Wyszynski University, Faculty of Mathematics and Natural Sciences, College of Sciences, Warsaw (Poland)

    2015-09-15

    The Lorentz transformation properties of the equal-time bound-state Bethe-Salpeter amplitude in the two-dimensional massless quantum electrodynamics (the so-called Schwinger model) are considered. It is shown that while boosting a bound state (a 'meson') this amplitude is subject to approximate Lorentz contraction. The effect is exact for large separations of constituent particles ('quarks'), while for small distances the deviation is more significant. For this phenomenon to appear, the full function, i.e. with the inclusion of all instanton contributions, has to be considered. The amplitude in each separate topological sector does not exhibit such properties. (orig.)

  10. Security or armageddon: Israel's nuclear strategy

    Energy Technology Data Exchange (ETDEWEB)

    Beres, L.R.

    1986-01-01

    This book closely examines Israel's strategic choices and the probable impact of those choices on American and Soviet foreign policy. The contributors of this debate both Israeli and American, represent a very distinguished group of scholars, all well-known specialists on international security affairs. The author addresses such critical issues as Israel's dilemma of either continuing with its ''bomb in the basement'' policy or disclosing its nuclear capabilities; the long-term prospects for security through conventional deterrence; the probability of nuclear and other highly destructive forms of terrorism; the creation of a regional non-proliferation treaty for the Middle East; the role of international law; the effect of superpower relations on regional stability; the relevance of Jewish history; and the problem of regional proliferation.

  11. Violence among Arab elementary school pupils in Israel.

    Science.gov (United States)

    Marie-Alsana, Wisam; Haj-Yahia, Muhammad M; Greenbaum, Charles W

    2006-01-01

    This article examines the prevalence of violence in primary schools attended by Arab children in Israel and the relationship between such exposure and violent behavior among these children. Participants are 388 Arab children (aged 10 to 12 years) living in three localities in Israel. The research focuses on three of the child's roles in relation to violence: witness, victim, and perpetrator. An adapted Arabic translation of the Violence Exposure Scale-Revised is administered to children in group settings. The children report more exposure to moderate levels than to severe levels of violence. Boys are exposed to more violence as victims, and witness and perpetrate more violence than girls do. Multiple regression analysis shows that the experience of being a victim predicts violent behavior in the children, above the effects of age and gender. The limitations of the study and its implications for future research and theory development are discussed.

  12. Living kidney donation and masked nationalism in Israel.

    Science.gov (United States)

    Epstein, Miran

    2016-12-13

    This paper draws attention to a current trend of masked conditional-nationalist living kidney donation in Israel, to which the local transplant system has been turning a blind eye. The paper seeks to make the international transplant and bioethics communities aware of this disturbing trend. It also explains why it is wrong and suggests how to tackle it. Finally, it calls on the Israeli system to bring the practice to a halt for the benefit of all parties involved.

  13. Anti-Semitism and criticism of Israel: Methodology and results of the ASCI survey

    Directory of Open Access Journals (Sweden)

    Wilhelm Kempf

    2015-04-01

    Full Text Available Building upon psychological conflict theory, on the one hand, and item-response models, on the other, the present paper develops an integrated methodology that aims at differentiating the various ways of criticizing Israel. An application of this methodology to the Anti-Semitism and Criticism of Israel (ASCI survey found two ways of criticizing Israel resulting from two different and antipodal processes. (1 Anti-Semitic criticism of Israel is generally laden with prejudice and shares not only anti-Semitic, anti-Zionist and anti-Israeli, but also anti-Palestinian resentments as well. (2 Non-anti-Semitic criticism of Israel is motivated by pacifism and human rights commitment and rejects any form of anti-Semitic, anti-Zionist, anti-Israeli or anti-Palestinian resentment. However, even critics of Israel who were not originally motivated by anti-Semitism are also in danger of developing anti-Semitic prejudices.

  14. Snoezelen or Controlled Multisensory Stimulation. Treatment Aspects from Israel

    Directory of Open Access Journals (Sweden)

    Joav Merrick

    2004-01-01

    Full Text Available In Israel today, with a total population of over 6 million persons, the Division for Mental Retardation (DMR provides services to 23,000 persons with intellectual disability (ID. Of the 23,000, residential services are provided to more than 6,000 in close to 60 residential centers, another 2,000 are provided residential care in hostels or group homes in the community in about 50 locations, while the rest are served with day-care kindergarten, day-treatment centers, sheltered workshops, or integrated care in the community. The first Snoezelen room (controlled multisensory stimulation in the DMR was established at the Bnei Zion residential care center in 1995. The Snoezelen method is now used in Israel in more than 30 residential care centers and 3 community settings. Since the year 2000, a physiotherapist has been employed in order to supervise the treatment and development of the method nationally. Professional staff meetings take place every 4 months. A certification course has been established on a national basis for individuals from different professions (occupational therapists, physiotherapists, teachers, music therapists, nurses, speech therapists, or caregivers. Snoezelen has proved to be an important instrument and a powerful therapeutic tool among the various treatment modules employed in Israel for persons with ID. This paper presents the concept illustrated with two case stories.

  15. Ritual plants of Muslim graveyards in northern Israel

    Directory of Open Access Journals (Sweden)

    Dafni Amots

    2006-09-01

    Full Text Available Abstract This article surveys the botanical composition of 40 Muslim graveyards in northern Israel, accompanied by an ethnobotanical study of the folkloristic traditions of the use of these plants in cemeteries. Three groups of plants were found to be repeated systematically and were also recognized for their ritual importance: aromatics herbs (especially Salvia fruticosa and Rosmarinus officinalis, white flowered plants (mainly Narcissus tazetta, Urginea maritima, Iris spp. and Pancratium spp. and Cupressus sempervirens as the leading cemetery tree. As endemic use we can indicate the essential role of S. fruticosa as the main plant used in all human rites of passage symbolizing the human life cycle. The rosemary is of European origin while the use of basil is of Indian influence. The use of white flowers as cemeteries plants reflects an old European influence and almost the same species are used or their congeners. Most of the trees and shrubs that are planted in Muslim cemeteries in Israel have the same use in ancient as well in modern European cultures. In conclusion, our findings on the occurrence of plants in graveyards reflect the geographic situation of Israel as a crossroads in the cultural arena between Asia and Europe. Most of the traditions are common to the whole Middle East showing high relatedness to the classical world as well as to the present-day Europe.

  16. Covert Diplomacy Between Israel and Egypt During Nasser Rule

    Directory of Open Access Journals (Sweden)

    Ido Yahel

    2016-10-01

    Full Text Available The history of Egypt and Israel consists of four wars and hundreds of border incidents that have taken the lives of tens of thousands of people. It seems that only the rise to power of a leader in the stature of Anwar Sadat could put an end to this bloody circle, because the previous president, Gamal Abdel Nasser, was not willing to hold any kind of political contact with Israel. But Nasser’s reign involved constant political contact between Egypt and Israel, most of whom remain confidential. This article attempts to examine whether any of these contacts were likely to succeed and yield a peace treaty between the two countries, an agreement that could have prevented three wars and saved the lives of so many people on both sides. It will do so by examining these contacts, their characteristics, and the reasons for their failure, while dividing them into three periods: the 1948 war to the 1956 war, the 1956 war to the 1967 war, and the 1967 war to the death of Nasser in 1970.

  17. El "régimen dual" en Israel desde 1967

    Directory of Open Access Journals (Sweden)

    Lev Grinberg

    2008-01-01

    Full Text Available Este artículo aborda el establecimiento del peculiar régimen de dominación dual de Israel desde 1967, argumentando que la estructura de este régimen convierte a las élites militares en un actor político crucial. El régimen dual se basa en la separación geográfi ca entre dos regímenes diferentes de control y legitimación. Argumentaré aquí que la guerra de 1967 fue un parteaguas histórico, ya que acarreó un desdibujamiento de las fronteras israelíes y la llegada de un régimen dual que legitima la división del poder político entre las élites militares y civiles que gobiernan Israel-Palestina. Mi objetivo es mostrar las contradicciones inherentes de este régimen dual de “ocupación democrática” y así arrojar luz sobre la dinámica de los espacios políticos de acuerdo a la población ocupada: su apertura, por reconocimiento y negociación, y su cancelación, por el uso de la violencia.

  18. Web-based description of the space radiation environment using the Bethe-Bloch model

    Science.gov (United States)

    Cazzola, Emanuele; Calders, Stijn; Lapenta, Giovanni

    2016-01-01

    Space weather is a rapidly growing area of research not only in scientific and engineering applications but also in physics education and in the interest of the public. We focus especially on space radiation and its impact on space exploration. The topic is highly interdisciplinary, bringing together fundamental concepts of nuclear physics with aspects of radiation protection and space science. We give a new approach to presenting the topic by developing a web-based application that combines some of the fundamental concepts from these two fields into a single tool that can be used in the context of advanced secondary or undergraduate university education. We present DREADCode, an outreach or teaching tool to rapidly assess the current conditions of the radiation field in space. DREADCode uses the available data feeds from a number of ongoing space missions (ACE, GOES-13, GOES-15) to produce a first order approximation of the radiation dose an astronaut would receive during a mission of exploration in deep space (i.e. far from the Earth’s shielding magnetic field and from the radiation belts). DREADCode is based on an easy-to-use GUI interface available online from the European Space Weather Portal (www.spaceweather.eu/dreadcode). The core of the radiation transport computation to produce the radiation dose from the observed fluence of radiation observed by the spacecraft fleet considered is based on a relatively simple approximation: the Bethe-Bloch equation. DREADCode also assumes a simplified geometry and material configuration for the shields used to compute the dose. The approach is approximate and sacrifices some important physics on the altar of rapid execution time, which allows a real-time operation scenario. There is no intention here to produce an operational tool for use in space science and engineering. Rather, we present an educational tool at undergraduate level that uses modern web-based and programming methods to learn some of the most important

  19. Range-separated time-dependent density-functional theory with a frequency-dependent second-order Bethe-Salpeter correlation kernel

    CERN Document Server

    Rebolini, Elisa

    2015-01-01

    We present a range-separated linear-response time-dependent density-functional theory (TDDFT) which combines a density-functional approximation for the short-range response kernel and a frequency-dependent second-order Bethe-Salpeter approximation for the long-range response kernel. This approach goes beyond the adiabatic approximation usually used in linear-response TDDFT and aims at improving the accuracy of calculations of electronic excitation energies of molecular systems. A detailed derivation of the frequency-dependent second-order Bethe-Salpeter correlation kernel is given using many-body Green-function theory. Preliminary tests of this range-separated TDDFT method are presented for the calculation of excitation energies of four small molecules: N2, CO2, H2CO, and C2H4. The results suggest that the addition of the long-range second-order Bethe-Salpeter correlation kernel overall slightly improves the excitation energies.

  20. Moral Support, Strategic Reasoning, or Domestic Politics: America’s Continual Support to Israel

    Science.gov (United States)

    2007-12-01

    3Stephen Zunes, “The Israel Lobby: How Powerful is it Really?” (FPIF, 2006); Nadav Safran , Israel The Embattled Ally...better relations with Arabs.57 As time went on, according to Nadav Safran , “Nasser and the Soviets used the American sympathy and support for...57 Safran , 578. 58 Safran , 579. 21 Israel and using the Middle East to help offset the Soviet threat created a

  1. Immigrant Adjustment in Israel: Literacy and Fluency in Hebrew and Earnings

    OpenAIRE

    Chiswick, Barry R.; Repetto, Gaston

    2000-01-01

    This paper is an analysis of the determinates of Hebrew language speaking and writing skills and the determinates of earnings among adult male Jewish immigrants in Israel, using the 1972 Census of Israel. Among other findings, Hebrew speaking skills and Hebrew literacy are shown to increase with level of schooling and duration in Israel, but to decrease with age at migration and if many others in the area in which the respondent lives speak the same origin language. Country of origin and fami...

  2. Abstracts of the 15th Annual Meeting of the Israel Society for Neuroscience (Eilat, Israel, December 3–5, 2006

    Directory of Open Access Journals (Sweden)

    2007-01-01

    Full Text Available The Israel Society for Neuroscience (ISFN was founded in 1993 by a group of Israeli leading scientists conducting research in the area of neurobiology. The primary goal of the society was to promote and disseminate the knowledge and understanding acquired by its members, and to strengthen interactions between them. Since then, the society holds its annual meeting every year in Eilat during the month of December. At these annual meetings the senior Israeli neurobiologists, their teams, and their graduate students, as well as foreign scientists and students, present their recent research findings in platform and poster presentations. The meeting also offers the opportunity for the researchers to exchange information with each other, often leading to the initiation of collaborative studies. Both the number of members of the society and of those participating in the annual meeting is constantly increasing, and it is anticipated that this year about 600 scientists will convene at the Princess Hotel in Eilat, Israel.

  3. Bethe-Salpeter Approach for the $P_{33}$ Elastic Pion-Nucleon Scattering in Heavy Baryon Chiral Perturbation Theory

    CERN Document Server

    Nieves, J

    2001-01-01

    Heavy Baryon Chiral Perturbation Theory (HBChPT) to leading order provides a kernel to solve the Bethe-Salpeter equation for the $P_{33}$ ($\\Delta(1232)$-channel) $\\pi-N$ system, in the infinite nucleon mass limit. Crossed Born terms include, when iterated within the Bethe-Salpeter equation, both {\\it all} one- and {\\it some} two-pion intermediate states, hence preserving elastic unitarity below the two-pion production threshold. This suggests searching for a solution with the help of dispersion relations and suitable subtraction constants, when all in-elasticities are explicitly neglected. The solution allows for a successful description of the experimental phase shift from threshold up to $\\sqrt{s}=1500$ MeV in terms of four subtraction constants. Next-to-leading order HBChPT calculations are also used to estimate the unknown subtraction constants which appear in the solution. Large discrepancies are encountered which can be traced to the slow convergence rate of HBChPT.

  4. Multiple integral formulae for the scalar product of on-shell and off-shell Bethe vectors in SU(3)-invariant models

    CERN Document Server

    Wheeler, M

    2013-01-01

    We study the scalar product S_{l,m} between an on-shell and an off-shell Bethe state in models with SU(3)-invariance, where l and m denote the cardinalities of the two sets of Bethe roots. We construct recursion relations relating S_{l,m} to scalar products of smaller dimension, namely S_{l-1,m} and S_{l,m-1}. Solving these recursion relations we obtain new multiple integral expressions for S_{l,m}, whose integrands are (l+m) \\times (l+m) determinants, and closely related to the Slavnov determinant expression for the SU(2) scalar product.

  5. Development of International Tourism in Israel and Prospects for New Kinds of Tourism

    Directory of Open Access Journals (Sweden)

    Varsenik V. Shakhlamchyan

    2012-05-01

    Full Text Available Israel is a popular tourist destination with leading-edge infrastructure, excellent services and new kinds of tourism. The article covers not only positive factors of development of tourism in the country, but week points affecting tourist flows and development of international tourism in Israel.

  6. Lights, Cameras, Action Research!--Moviemaking as a Pedagogy for Constructivist Israel Education

    Science.gov (United States)

    Backenroth, Ofra; Sinclair, Alex

    2015-01-01

    In this article we analyze moviemaking as a unique pedagogy that is used in a preservice semester in Israel program for the preparation of Israel educators: Students create their own short films about an aspect of Israeli society and/or their relationship with it. We analyze the students' movies, together with students' reflective papers about the…

  7. A Critical Look at Psychological Testing in Israel and Comparisons with Its European Neighbors

    Science.gov (United States)

    Fine, Saul

    2013-01-01

    While psychological tests are used extensively in Israel, the current controls over testing practices in Israel deserve some attention. Specifically, unlike in some European countries and the United States, (a) no specific certifications are offered to Israeli psychologists in the area of testing; (b) Israeli psychologists are not obligated to…

  8. Learning Disabilities: Current Policy and Directions for Community Involvement among the Arab Community in Israel

    Science.gov (United States)

    Jabareen-Taha, Samaher; Taha, Haitham

    2016-01-01

    This article seeks to identify and review the basic characteristics of learning disability which are specifically mentioned in the literature. In addition, the article intends to conduct a brief analysis on learning disability policy in Israel and the differentiation problems at the level of awareness among the Arab society in Israel. Despite the…

  9. Druze Linguistic Landscape in Israel: Indexicality of New Ethnolinguistic Identity Boundaries

    Science.gov (United States)

    Isleem, Martin

    2015-01-01

    The Druze community in Israel is a distinct religious community currently undergoing important ethnolinguistic shifts. The government's implementation of an official policy has led to the deconstruction and reshaping of the Druze political and national identity to one that differs substantially from that of the Palestinian minority in Israel.…

  10. Vision, Curriculum, and Pedagogical Content Knowledge in the Preparation of Israel Educators

    Science.gov (United States)

    Backenroth, Ofra; Sinclair, Alex

    2014-01-01

    In this article we explore how we as teacher educators translate a new vision of Israel education into curricular practice in the preparation of emerging Jewish educators. Using a practitioner inquiry mode of research, we reflect on our existential vision of Israel education and its translation into practice as creators and directors of a semester…

  11. Druze Linguistic Landscape in Israel: Indexicality of New Ethnolinguistic Identity Boundaries

    Science.gov (United States)

    Isleem, Martin

    2015-01-01

    The Druze community in Israel is a distinct religious community currently undergoing important ethnolinguistic shifts. The government's implementation of an official policy has led to the deconstruction and reshaping of the Druze political and national identity to one that differs substantially from that of the Palestinian minority in Israel. In…

  12. 77 FR 48497 - Oil and Gas Trade Mission to Israel-Clarification and Amendment

    Science.gov (United States)

    2012-08-14

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF COMMERCE... potential buyers, agents, distributors and joint venture partners; meetings with government officials; and... traveling to Israel on their own, will enhance the companies' ability to secure meetings in Israel....

  13. Multiculturalità ottomana e scrittori italiani da Saul Israel a Miro Silvera e Daniel Fishman

    NARCIS (Netherlands)

    Speelman, R.M.

    2007-01-01

    Dall’ex Impero Ottomano, società multiculturale per eccellenza, della quale facevano parte fra l’altro Grecia e Bulgaria, Siria, Egitto, Libia e Israele, provengono molti ebrei scrittori in lingua italiana. Esaminiamo tre di essi: Saul Israel, scienziato nato a Selanik (Salonicco) e autore di un rom

  14. Assessing the Impact of Ongoing National Terror: Social Workers in Israel

    Science.gov (United States)

    Ron, Pnina; Shamai, Michal

    2011-01-01

    The main goal of this study was to explore the connections between social workers' personal and professional exposure to national terror in Israel and their professional and personal distress experienced due to ongoing terror attacks. Data were collected from 406 social workers from Israel who worked in agencies that provide help to victims of…

  15. Southward Migration Season: New Arab Teachers from North Move to Southern Israel

    Science.gov (United States)

    Schatz-Oppenheimer, Orna

    2016-01-01

    This study addresses intercultural differences among novice teachers (K-12) who graduated Arab academic teachers' colleges and lived in northern and central Israel before moving south to teach in Israel's Bedouin diaspora. The source material consists of stories they entered in a contest, describing the personal and professional aspects of their…

  16. 75 FR 28485 - Airworthiness Directives; Gulfstream Aerospace LP (Type Certificate Previously Held by Israel...

    Science.gov (United States)

    2010-05-21

    ... Aerospace LP (Type Certificate Previously Held by Israel Aircraft Industries, Ltd.) Model Gulfstream 100... adding the following new AD: 2010-11-02 Gulfstream Aerospace LP (Type Certificate Previously Held by... Gulfstream Aerospace LP (Type Certificate previously held by Israel Aircraft Industries, Ltd.)...

  17. 75 FR 36296 - Airworthiness Directives; Gulfstream Aerospace LP (Type Certificate Previously Held by Israel...

    Science.gov (United States)

    2010-06-25

    ... Directives; Gulfstream Aerospace LP (Type Certificate Previously Held by Israel Aircraft Industries, Ltd... Previously Held by Israel Aircraft Industries, Ltd.): Docket No. FAA-2010-0555; Directorate Identifier 2010.... Applicability (c) This AD applies to Gulfstream Aerospace LP (Type Certificate previously held by...

  18. 77 FR 32069 - Airworthiness Directives; Gulfstream Aerospace LP (Type Certificate Previously Held by Israel...

    Science.gov (United States)

    2012-05-31

    ... Aerospace LP (Type Certificate Previously Held by Israel Aircraft Industries, Ltd.) Airplanes AGENCY... previously held by Israel Aircraft Industries, Ltd.) Model Galaxy and Gulfstream 200 airplanes. This proposed.... 39.13 by adding the following new AD: Gulfstream Aerospace LP (Type Certificate previously held...

  19. Guided School Visits to Natural History Museums in Israel: Teachers' Roles

    Science.gov (United States)

    Tal, Revital; Bamberger, Yael; Morag, Orly

    2005-01-01

    Museums are favorite and respected resources for learning worldwide. In Israel, there are two relatively large science centers and a number of small natural history museums that are visited by thousands of students. Unlike other countries, studying museum visits in Israel only emerges in the last few years. The study focused on the roles and…

  20. Optical properties of bulk semiconductors and graphene/boron nitride: the Bethe-Salpeter equation with derivative discontinuity-corrected density functional energies

    DEFF Research Database (Denmark)

    Yan, Jun; Jacobsen, Karsten W.; Thygesen, Kristian S.

    2012-01-01

    We present an efficient implementation of the Bethe-Salpeter equation (BSE) for optical properties of materials in the projector augmented wave method Grid-based projector-augmented wave method (GPAW). Single-particle energies and wave functions are obtained from the Gritsenko, Leeuwen, Lenthe...

  1. Israel's Quadrant: Weeping, Laughing, and the Measures of the Stars

    Science.gov (United States)

    Locci, A. A.

    2011-06-01

    In the Jewish culture of the Middle Ages, the astral bodies were constantly given a special attention. They were deeply admired in religious poetry, and studied and observed in scientific and technical works. In an elegy of an anonymous poet of the 11th century, which is usually read in the celebrations of the 9th day of Ab, constellations and stars share the grief for the destruction of the temple of Jerusalem. Like the Israel Tribes, all constellations are said to weep; Pleiades and Orion are said to darken their face, the Scales turn asymmetrical, the pan of death overrides the pan of life; Scorpio is scared and trembles, Sagittarius turns his face back. Jacob ben Machir ibn Tibbon, born in Marseille in 1236, was physician, mathematician, and astronomer. He translated Euclides' Elements, the Treatise of the Armillar Sphere by Qusta ibn Luqa, the Treatise on the Astrolabe by abu al-Kasim Ahmad ibn al Saffar, and works of Ptolemy, Averroes, and Aristoteles. His most important work is the short treatise Rova' Israel ("Israel's Quadrant") which he later translated in Latin with the help of Armengaud from Blaise. In the first chapter, he discusses the Sun risings, the days of the month, the place of the Sun in the sky, and the lunar motion. In the second chapter, he discusses the relations between sunrise and sunset, between moonrise and moonset, and between solar year and lunar month. In the following chapters, he illustrates a technical device which he had developed and which he designates "Israel's Quadrant". This instrument could be used both for the sky and for the Earth, since it allowed to survey and measure the elevation of the stars, the elevation of terrestrial reliefs, and terrestrial horizontal distances. The quadrant is flat, and its area is that of a quarter of a circumference. This instrument was very versatile, it also allowed to calculate hours and time, and this favoured its exceptional diffusion. Thus, its name, "quadrant", was transferred to the

  2. Priority pricing in electricity supply. An application for Israel

    Energy Technology Data Exchange (ETDEWEB)

    Beenstock, Michael; Goldin, Ephraim [Hebrew University of Jerusalem, Department of Economics, Mount Scopus, Jerusalem (Israel)

    1997-06-01

    It is well known that in the event of a shortage in generation capacity, it is inefficient if the electricity utility cuts off customers randomly. It is preferable to set up a market in service priority in which customers who have a greater need pay more for the right not to be cut off. We use an econometric model of outage costs in Israel to calculate the menu of priority rates by season and time of day. Top priority rates range from zero, when the loss-of-load probability (LOLP) is zero, to 8 cents (US) per kWh when the LOLP is greatest

  3. Diskussie oor die millenium en die herstel van Israel

    Directory of Open Access Journals (Sweden)

    J. J. Engelbrecht van Waverley

    1978-06-01

    Full Text Available Dit verheug my dat daar eindelik gereageer word op my boekie. Behalwe telefoonoproepe en briewe van medechiliaste was daar tot dusver geen kommentaar van anti-chiliastiese kant. Ek het die boekie aan ongeveer 1800 predikante en professore gestuur en vriendelik uitgenooi tot nuwe besinning. Net soos oor die soteriologie, is die Bybel nêrens in teëspraak met homself oor die eskatologie nie. God gee in sy Woord nie vir ons drie verskillende toekomsbeelde om uit te kies nie. God is een en sy profetiese Woord is deurgaans eenstemmig m.b.t. die raad van God oor Israel, die nasies en die kerk.

  4. Immature condensate from southeastern Mediterranean coastal plain, Israel

    Energy Technology Data Exchange (ETDEWEB)

    Nissenbaum, A.; Aizenshtat, Z.; Goldberg, M.

    1985-06-01

    A highly unsaturated, sulfur-rich, naphthenic condensate was discovered in association with dry biogenic gas in the upper Tertiary of the southeastern Mediterranean coastal plain of Israel. Geologic and geochemical evidence suggests that this condensate was generated in thermally immature rocks. Similar material has been reported from the upper Tertiary of the western Mediterranean. We suggest that the immature condensates were formed from resin-rich, terrestrially derived organic matter. Under an equivalent thermal regime, marine material derived primarily from algae and bacteria will produce heavy crude, rich in asphaltenes.

  5. Plants used for the treatment of diabetes in Israel.

    Science.gov (United States)

    Yaniv, Z; Dafni, A; Friedman, J; Palevitch, D

    1987-01-01

    In an extensive ethnobotanical survey (130 informants) of the medicinal plants of Israel, 16 species were found to be used for hypoglycaemic treatments. The list includes Achillea fragrantissima (Forssk.) Sch.-Bip, Ammi visnaga (L.) Lam, Atriplex halimus L., Capparis spinosa L., Ceratonia siliqua L., Cleome droserifolia (Forssk.) Del., Eryngium creticum Lam., Inula viscosa (L.) Ait., Matricaria aurea (Loefl.) Sch.-Bip, Origanum syriaca L., Paronychia argentea Lam, Prosopis farcta (Banks et Sol.) Macbride, Salvia fruticosa Mill., Sarcopoterium spinosum (L.) Sp., and Teucrium polium L.; eight of them (marked with an asterisk) are first recorded here as used for this purpose.

  6. Reflections on Working with Ethiopian Families in Israel. Bernard van Leer Foundation Studies and Evaluation Papers No. 3.

    Science.gov (United States)

    Ashkenazi, Michael

    By 1985, almost 2,500 Ethiopian Jews, who call themselves Beta Israel, had settled in Israel, with more than 1,600 in permanent housing in 2 major areas. This mass immigration caused strains on Israeli society and on the immigrants. The Bernard van Leer Foundation funded the Community and Education Project for Beta Israel to assist in the…

  7. Hanna David`s Book: The Gifted Arab Child In Israel

    Directory of Open Access Journals (Sweden)

    Emre KOMEK

    2014-06-01

    Full Text Available In this article, it was examined Hanna David’s Book: The Gifted Arab Child in Israel. The book focuses on Arab gifted children living in Israel. In Israel three Arab groups are living: Muslim, Christian and Druze. This book contains 7 sections. First Section: A Brief History of Education of Arabs In The State of Israel, Second Section: Characteristics of the Arab Gifted Child in Israel, Third Section: Education of the Arab Gifted Child, Fourth Section: Enrichment Programs for the Gifted in the Arab Sector, Fifth section: Description of Various Kinds of Enrichment Program for the Arab Sector, Sixth section: A Minority within a Minority: Gifted Students in the Christian, Druze and Bedouin Sectors, Seventh Section: The talented Arab Girl: Between Tradition and Modernism. In this book, author gives some suggestions to reveal potential of Arab girls. Some of them are; family support, financial aid etc.

  8. Exact Bethe ansatz solution for a quantum field model of interacting scalar fields in quasi-two dimensions

    CERN Document Server

    Kundu, Anjan

    2016-01-01

    Integrable quantum field models are known to exist mostly in one space-dimension. Exploiting the concept of multi-time in integrable systems and a Lax matrix of higher scaling order, we construct a novel quantum field model in quasi-two dimensions involving interacting fields. The Yang-Baxter integrability is proved for the model by finding a new kind of commutation rule for its basic fields, representing nonstandard scalar fields along the transverse direction. In spite of a close link with the quantum Landau-Lifshitz equation, the present model differs widely from it, in its content and the result obtained. Using further the algebraic Bethe ansatz we solve exactly the eigenvalue problem of this quantum field model for all its higher conserved operators. The idea presented here should instigate the construction of a novel class of integrable field and lattice models and exploration of a new type of underlying algebras.

  9. Resolution of the GL(3) - O(3) state labelling problem via O(3)-invariant Bethe subalgebra of the twisted Yangian

    CERN Document Server

    Jarvis, P D

    2004-01-01

    The labelling of states of irreducible representations of GL(3) in an O(3) basis is well known to require the addition of a single O(3)-invariant operator, to the standard diagonalisable set of Casimir operators in the subgroup chain GL(3) - O(3) - O(2). Moreover, this `missing label' operator must be a function of the two independent cubic and quartic invariants which can be constructed in terms of the angular momentum vector and the quadrupole tensor. It is pointed out that there is a unique (in a well-defined sense) combination of these which belongs to the O(3) invariant Bethe subalgebra of the twisted Yangian Y(GL(3);O(3)) in the enveloping algebra of GL(3).

  10. Real-time approach to the optical properties of solids and nanostructures: Time-dependent Bethe-Salpeter equation

    Science.gov (United States)

    Attaccalite, C.; Grüning, M.; Marini, A.

    2011-12-01

    Many-body effects are known to play a crucial role in the electronic and optical properties of solids and nanostructures. Nevertheless, the majority of theoretical and numerical approaches able to capture the influence of Coulomb correlations are restricted to the linear response regime. In this work, we introduce an approach based on a real-time solution of the electronic dynamics. The proposed approach reduces to the well-known Bethe-Salpeter equation in the linear limit regime and it makes it possible, at the same time, to investigate correlation effects in nonlinear phenomena. We show the flexibility and numerical stability of the proposed approach by calculating the dielectric constants and the effect of a strong pulse excitation in bulk h-BN.

  11. Fast iterative solution of the Bethe-Salpeter eigenvalue problem using low-rank and QTT tensor approximation

    Science.gov (United States)

    Benner, Peter; Dolgov, Sergey; Khoromskaia, Venera; Khoromskij, Boris N.

    2017-04-01

    In this paper, we propose and study two approaches to approximate the solution of the Bethe-Salpeter equation (BSE) by using structured iterative eigenvalue solvers. Both approaches are based on the reduced basis method and low-rank factorizations of the generating matrices. We also propose to represent the static screen interaction part in the BSE matrix by a small active sub-block, with a size balancing the storage for rank-structured representations of other matrix blocks. We demonstrate by various numerical tests that the combination of the diagonal plus low-rank plus reduced-block approximation exhibits higher precision with low numerical cost, providing as well a distinct two-sided error estimate for the smallest eigenvalues of the Bethe-Salpeter operator. The complexity is reduced to O (Nb2) in the size of the atomic orbitals basis set, Nb, instead of the practically intractable O (Nb6) scaling for the direct diagonalization. In the second approach, we apply the quantized-TT (QTT) tensor representation to both, the long eigenvectors and the column vectors in the rank-structured BSE matrix blocks, and combine this with the ALS-type iteration in block QTT format. The QTT-rank of the matrix entities possesses almost the same magnitude as the number of occupied orbitals in the molecular systems, No

  12. Rethinking the sustainability of Israel's irrigation practices in the Drylands.

    Science.gov (United States)

    Tal, Alon

    2016-03-01

    Broad utilization of drip irrigation technologies in Israel has contributed to the 1600 percent increase in the value of produce grown by local farmers over the past sixty-five years. The recycling of 86% of Israeli sewage now provides 50% of the country's irrigation water and is the second, idiosyncratic component in Israel's strategy to overcome water scarcity and maintain agriculture in a dryland region. The sustainability of these two practices is evaluated in light of decades of experience and ongoing research by the local scientific community. The review confirms the dramatic advantages of drip irrigation over time, relative to flood, furrow and sprinkler irrigation and its significance as a central component in agricultural production, especially under arid conditions. In contrast, empirical findings increasingly report damage to soil and to crops from salinization caused by irrigation with effluents. To be environmentally and agriculturally sustainable over time, wastewater reuse programs must ensure extremely high quality treated effluents and ultimately seek the desalinization of recycled sewage.

  13. Addressing a nation's challenge: graduate programs in gerontology in Israel.

    Science.gov (United States)

    Carmel, Sara; Lowenstein, Ariela

    2007-01-01

    Like other developed nations, Israel has rapidly aged. This demographic revolution has created new challenges for Israeli society. We describe the societal background, including the emerging societal needs, solutions, and problems, as well as the professional principles, which guided us in developing the first two Israeli academic programs in gerontology in Beer-Sheva and Haifa. We further discuss the structures of both programs and their accomplishments. Although both programs were guided by identical needs and principles, geared toward the same multidisciplinary target population, and are dynamic and responsive to the emerging needs and difficulties, they differ in structure. While Haifa's program is flexible, Beer-Sheva's program is structured and divided into three distinct programs, of which only one-the research track-is designed and tailored to the students' interest. The two programs have contributed to increasing interest and research in aging in Israel, enhancing professional cooperation within the universities and with the international scientific community, opening the labor market for the programs' graduates, creating fruitful collaborations with community services, and accelerating the improvement of elderly quality of care.

  14. School Lunch Programs in Israel, Past and Present

    Directory of Open Access Journals (Sweden)

    Endevelt, Ronit

    2007-07-01

    Full Text Available The first lunch programs in Palestine were the “soup kitchens,” which were established in Jerusalem before the First World War to feed the poor. Then, in 1923, Henrietta Szold launched a lunch initiative in schools in order to supply basic nutrition to students. As the children at most of the schools prepared the meals themselves with local products, they also learned good, low-cost eating habits and the appropriate use of domestic goods and had educational goals as well. These educational goals were in line with Zionist ideology. School lunch programs lasted through the early years of the nation of Israel, albeit without official governmental support, but they came to an end amid the rising prosperity of the early 1970s. In 2004, in response to the alarming results of a food security survey conducted by the Ministry of Health, the Knesset passed a law establishing a new school lunch program on a trial basis. This article reviews the history of lunch programs in Israel, highlighting both their achievements and their limitations, in order to establish a framework for judging the success of the current school lunch policy.

  15. Epidemiological changes of respiratory syncytial virus (RSV infections in Israel.

    Directory of Open Access Journals (Sweden)

    Shira Hirsh

    Full Text Available RSV is the leading cause of lower respiratory-tract infections in infants and therefore demands in-depth epidemiological characterization. We investigated here the distribution of RSV types in Israel between the years 2005-2012. Clinical samples were collected from 11,018 patients hospitalized due to respiratory illnesses and were evaluated for the presence of various respiratory viruses, including RSV A and RSV B. Until 2008, each year was characterized by the presence of one dominant type of RSV. However, from 2008, both RSV A and B types were detected at significant levels, particularly among infants aged 0-2 years. Furthermore, significant changes in the RSV A and RSV B subtypes circulating in Israel since 2008 were observed. Finally, we demonstrate that, irrespectively of the changes observed in RSV epidemiology, when the pandemic H1N1pdm09 influenza virus appeared in 2009, RSV infections were delayed and were detected when infection with H1N1pdm09 had declined.

  16. Las etnicidades judías en Israel

    Directory of Open Access Journals (Sweden)

    Eliezer Ben-Rafael

    2008-01-01

    Full Text Available La fundación del Estado de Israel se acompañó de un proyecto social, cultural y político destinado a asegurar la creación de una nación homogénea. La clase media proveniente de Europa oriental y su visión laica de la cultura judía en Israel ha tenido una posición hegemónica desde la fundación del Estado hasta 1977. Sin embargo, el autor mantiene que el sistema democrático ha permitido que otros grupos no solo exigiesen autonomía cultural, sino que infl uyeran en la cultura dominante a través de la representación política. El artículo analiza dos de estos grupos, los Mizrahim y su resistencia a la secularización de la cultura judía, y los rusos, quienes también se oponen a la homogeneidad cultural actual a pesar de compartir los valores laicos de la cultura dominante. Estos procesos han llevado a lo que el autor denomina multiculturalismo confl ictivo.

  17. Suicide in Judaism with a Special Emphasis on Modern Israel

    Directory of Open Access Journals (Sweden)

    Daniel Stein

    2012-08-01

    Full Text Available Judaism considers the duty of preserving life as a paramount injunction. Specific injunctions against suicide appear in the Bible, Talmud, and thereafter. Nevertheless, Jewish tradition emphasizes that one should let himself be killed rather than violate cardinal rules of Jewish law. Mitigating circumstances are found for the six deaths by suicide mentioned in the Bible, for example to account for one's sins, or avoid shameful death. Heroic suicide is praised throughout the Jewish history, from the suicide of Samson and the collective suicide in Masada, to the collective readiness of Jews in Medieval times and during the Holocaust to kill themselves rather than succumb to their enemies. Suicide rates for Jews are lower than those of Protestants and Catholics. Similarly, suicide rates in Israel are lower in comparison to Europe and North America, although being higher than those in most Moslem Asian and North African countries. This low rate of suicide is found in Jewish Israelis of all ages, including in adolescents. Elevated suicidal risk may be found in specific sub-populations, including male Israeli soldiers, immigrants from the former USSR and Ethiopia, in particular adolescent immigrants from the former USSR, elderly Holocaust survivors, and young Israel-Arab women. The meaning of these findings is discussed according to different socio-cultural perspectives.

  18. Launching the Israel Journal of Health Policy Research: Why a new journal? Why now? Why open access?

    Science.gov (United States)

    Rosen, Bruce; Israeli, Avi

    2012-01-30

    The Israel Journal of Health Policy Research (IJHPR) is a new, open access journal. IJHPR seeks to promote intensive intellectual interactions among scholars and practitioners from Israel and other countries regarding all aspects of health policy, with particular attention to Israel. The ultimate aim of these interactions is to contribute to the development of health policy in Israel, and also to foster wider communication between health scientists and policy analysts in Israel and their colleagues around the world. This inaugural editorial provides an overview of the new journal's rationale and its key features.

  19. Progress in palliative care in Israel: comparative mapping and next steps

    Directory of Open Access Journals (Sweden)

    Bentur Netta

    2012-02-01

    Full Text Available Abstract Palliative care was established rapidly in some countries, while in other countries its establishment has taken a different trajectory. This paper identifies core steps in developing a medical specialty and examines those taken by Israel as compared with the US and England for palliative care. It considers the next steps Israel may take. Palliative care aims to provide quality of life for those with serious illnesses by attending to the illness-prompted physical, mental, social, and spiritual needs of patients and their families. It has ancient roots in medicine; its modern iteration began against the backdrop of new cures and life-sustaining technology which challenged conceptions of how to respect the sanctity of life. The first modern hospice was created by Saunders; it provided proof that palliative care works, and this has occurred in Israel as well (the first step. Another key step is usually skills development among clinicians; in Israel, few education and training opportunities exist so far. Specialty recognition also has not yet occurred in Israel. Service development remains limited and a major shortage of services exists, compared to the US. Research capacity in Israel is also limited. Policy to develop and sustain palliative care in Israel is underway; in 2009, the Ministry of Health established policy for implementing palliative care. However, it still lacks a financially viable infrastructure. We conclude that palliative care in Israel is emerging but has far to go. Adequate resource allocation, educational guidelines, credentialed manpower and specialty leadership are the key factors that palliative care development in Israel needs.

  20. "Signs of honor" among Russian inmates in Israel's prisons.

    Science.gov (United States)

    Shoham, Efrat

    2010-12-01

    The unique nature of Israeli society as an immigrant society has also affected the prison population in Israel. This article focuses on a social and cultural phenomenon that particularly characterizes the prisoners of Russian origin, the phenomenon of tattoos. Using postmodernist theories, the article examines the function of the tattoo among Russian prisoners and the role it plays in constructing the criminal self-identity of these inmates in Israeli prisons. The tattoos observed during 2005-2006 among the Russian prisoners in four major Israeli prisons reflect the values of the Russian criminal subculture from which they evolved and were imported. This subculture is characterized by a hierarchical class structure and manifestations of machismo, domination, defiance, rebellion, and open antagonism against the Establishment and its representatives.

  1. Solutions of Conformal Israel-Stewart Relativistic Viscous Fluid Dynamics

    CERN Document Server

    Marrochio, Hugo; Denicol, Gabriel S; Luzum, Matthew; Jeon, Sangyong; Gale, Charles

    2013-01-01

    We use symmetry arguments developed by Gubser to construct the first radially-expanding explicit solutions of the Israel-Stewart formulation of hydrodynamics. Along with a general semi-analytical solution, an exact analytical solution is given which is valid in the cold plasma limit where viscous effects from shear viscosity and the relaxation time coefficient are important. The radially expanding solutions presented in this paper can be used as nontrivial checks of numerical algorithms employed in hydrodynamic simulations of the quark-gluon plasma formed in ultra-relativistic heavy ion collisions. We show this explicitly by comparing such analytic and semi-analytic solutions with the corresponding numerical solutions obtained using the MUSIC viscous hydrodynamics simulation code.

  2. Solutions of conformal Israel-Stewart relativistic viscous fluid dynamics

    Science.gov (United States)

    Marrochio, Hugo; Noronha, Jorge; Denicol, Gabriel S.; Luzum, Matthew; Jeon, Sangyong; Gale, Charles

    2015-01-01

    We use symmetry arguments developed by Gubser to construct the first radially expanding explicit solutions of the Israel-Stewart formulation of hydrodynamics. Along with a general semi-analytical solution, an exact analytical solution is given which is valid in the cold plasma limit where viscous effects from shear viscosity and the relaxation time coefficient are important. The radially expanding solutions presented in this paper can be used as nontrivial checks of numerical algorithms employed in hydrodynamic simulations of the quark-gluon plasma formed in ultrarelativistic heavy ion collisions. We show this explicitly by comparing such analytic and semi-analytic solutions with the corresponding numerical solutions obtained using the music viscous hydrodynamics simulation code.

  3. [The organization of Jewish dentists in pre-Israel Palestine].

    Science.gov (United States)

    Keren-Kratz, M

    2016-04-01

    scientific publications. At the same time dentists published articles in the daily press in which they educated the public on dental hygiene and on modern dental techniques. This momentum was halted in the early 1940s as result of WWII and the Holocaust, but was quick to resume immediately thereafter. 1944 saw the publication of a professional dental Journal, which this issue is a continuation of. By the time the state of Israel was established in 1948, it had more than 900 active dentists, most of them organized in the Israel Dental Association. The only element which was still required to bridge the gap between the dentists in Israel and those in the rest of the modern world was an academic dental school. After more than 20 years in making, the school was opened in 1953 in Jerusalem. From that time on, Israel's dentistry enjoys a worldwide reputation and its dental school graduates teach and lecture in universities and in many dental forums around the globe.

  4. School violence in Israel: findings of a national survey.

    Science.gov (United States)

    Zeira, Anat; Astor, Ron Avi; Benbenishty, Rami

    2003-10-01

    The authors report preliminary findings of a national survey on school violence in Israel. The national representative sample was stratified on school type--elementary, middle, and high schools--and ethnicity--Jewish and Arab students. A total of 15,916 students from 603 classes and 232 schools participated in the study, resulting in a 91 percent response rate. Findings revealed high rates of violence in all areas and among all age groups, but relatively higher rates of low-level violent behaviors and lower rates of more severe violent events. The authors report on age-related, gender, and cultural differences and discuss social workers' roles in shaping national policy and professional discourse on school violence.

  5. Sarcoptic mange in wild ruminants in zoological gardens in Israel.

    Science.gov (United States)

    Yeruham, I; Rosen, S; Hadani, A; Nyska, A

    1996-01-01

    Sarcoptic mange (Sarcoptes scabiei) occurred among wild ruminant species in five zoological gardens in Israel, from 1984 to 1994. Infestation of five ruminants by S. scabiei is reported for the first time: mountain gazelles (Gazella gazella), Nubian ibexes (Capra ibex nubiana), a barbary sheep (Ammotragus lervia), elands (Taurotragus oryx), and an Arabian oryx (Oryx leucoryx). All animals in the herds were administered ivermectin orally at a dose of 200 micrograms/kg body weight daily for 3 consecutive days. This was repeated three times at 2-wk intervals. The disease was eradicated in four small zoos, whereas in the biggest zoo, only control was achieved. Mortality among animals 8-yr-old animals composed 65% of mortality among all age classes.

  6. Tear production in three captive wild herbivores in Israel.

    Science.gov (United States)

    Ofri, R; Horowitz, I; Kass, P H

    1999-01-01

    The Schirmer tear test (STT) I was performed to evaluate tear production in 12 captive Nubian ibex (Capra ibex nubiana), 10 captive Burchell's zebras (Equus burchelli) and five Arabian oryx (Oryx leucoryx) at the Tel-Aviv Ramat-Gan Zoological Center (Israel). Mean (+/- standard deviation) STT values were 13.2 +/- 5.1 mm/min in the ibex, 23.4 +/- 3.4 mm/min in the zebra and 12.7 +/- 4.8 mm/min in the oryx. There were no significant effects of gender, age, weight, or side of the eye. There were no significant differences in STT values between ibex and oryx, but tear production in both species was significantly lower than in zebras. Knowledge of normal tear production values is important for the differential diagnosis of conjunctivitis and keratitis in these species.

  7. [Oral medicine in Israel: Current status and future directions].

    Science.gov (United States)

    Aframian, D J; Vered, M

    2016-04-01

    The oral cavity-body relationships are bi-directional: oral diseases affect the welfare and health of the individual, while diseases and conditions of organs and tissues in the human body affect oral health. The global policy of the World Health Organization is to improve oral health in the 21st century as an integral part of promoting our general health. During the recent years the knowledge of the dental profession has grown exponentially and widened its fields of interest and this has led to impressive advances at both clinical and research levels. Oral medicine, which is a recognized, licensed specialty in Israel, is a definite example that reflects this process. In the last decade residency programs in oral medicine are in the process of constant increased demand. The authors discuss this trend and comment on the need to maintain excellence in this specialty.

  8. El colapso del proceso de paz palestino-israelí

    Directory of Open Access Journals (Sweden)

    Doris Musalen Rahal

    2001-01-01

    Full Text Available En este trabajo se presenta la revisión sintetizada del proceso de paz entre Israel y la Organización para la Liberación de Palestina, que se inició con la firma de los Acuerdos de Oslo en septiembre de 1993, enfatizando en las razones de su fracaso. También se analiza la nueva Infantada –la que estalló en septiembre de 2000– que al mismo tiempo que representa el fin de las negociaciones palestinasisraelíes, es la expresión de la reafirmación de las reivindicaciones más fundamentales del pueblo palestino: un estado independiente, incluida Jerusalén Este como su capital, y el regreso de los refugiados; peticiones que fueron eliminadas del proceso de paz.

  9. The quality of commercial wheat silages in Israel.

    Science.gov (United States)

    Weinberg, Z G; Chen, Y; Solomon, R

    2009-02-01

    Wheat silages are the major roughage for high-producing lactating dairy cows in Israel; therefore, their quality is important. The main objective of the current study was to determine the preservation status and nutritional quality of commercial wheat silages in Israel. An additional objective was to develop predictive equations for dry matter digestibility (DMD) and neutral detergent fiber digestibility (NDFD) based on chemical composition of the silages, which would permit estimation of the digestibility from chemical composition. A total of 143 commercial wheat silages were sampled and analyzed for 3 yr. Fourteen random samples that were not included in the regression analysis were used to validate the equations by the bias and error of the model. Results revealed that wheat silages were quite sensitive to aerobic exposure; additives resulted in some improvement of the aerobic stability. After choosing the significant terms from ash, crude protein (CP), NDF, acid detergent fiber (ADF), and acid detergent lignin (ADL) by PROC STEPWISE of SAS, the following prediction equations were obtained from all 143 samples: DMD = 86.3 + (0. 70 x CP) - (0.46 x ADF) - (1.67 x ADL); and NDFD = 20.3 + (1.00 x CP) + (1.16 x NDF) - (0.88 x ADF) - (2.25 x ADL). The bias and the error of the prediction model for DMD were approximately 0.006 and 0.065, respectively; the bias and error for NDFD were approximately 0.007 and 0.118, respectively. It was concluded that the prediction model for DMD was quite adequate, whereas that for NDFD was less acceptable.

  10. Salt enrichment of municipal sewage: New prevention approaches in Israel

    Science.gov (United States)

    Weber, Baruch; Avnimelech, Yoram; Juanico, Marcelo

    1996-07-01

    Wastewater irrigation is an environmentally sound wastewater disposal practice, but sewage is more saline than the supplied fresh water and the salts are recycled together with the water. Salts have negative environmental effects on crops, soils, and groundwater. There are no inexpensive ways to remove the salts once they enter sewage, and the prevention of sewage salt enrichment is the most immediately available solution. The body of initiatives presently structured by the Ministry of the Environment of Israel are herein described, with the aim to contribute to the search for a long-term solution of salinity problems in arid countries. The new initiatives are based on: (1) search for new technologies to reduce salt consumption and discharge into sewage; (2) different technologies to cope with different situations; (3) raising the awareness of the public and industry on the environmental implications of salinity pollution; and (4) an elastic legal approach expressed through new state-of-the-art regulations. The main contributor to the salinity of sewage in Israel is the watersoftening process followed by the meat koshering process. Some of the adopted technical solutions are: the discharge of the brine into the sea, the substitution of sodium by potassium salts in the ion-exchangers, the construction of centralized systems for the supply of soft water in industrial areas, the precipitation of Ca and Mg in the effluents from ion-exchangers and recycling of the NaCI solution, a reduction of the discharge of salts by the meat koshering process, and new membrane technology for salt recovery.

  11. Natural Radioactivity in Groundwater from the Negev, Israel

    Science.gov (United States)

    Pery, N.; Vengosh, A.; Haqin, G.; Paytan, A.; Elhanani, S.; Pankratov, I.; Broshi, L.; Yungreiss, Z.; Gazit-Yaari, N.

    2004-12-01

    As most of the groundwater basins in the Middle East are being diminished or contaminated, exploitation of the deep aquifers referred as the "Nubian Sandstone" from the Paleozoic and Lower Cretaceous sandstone units is increasing. In many basins across the Sahara and Sahel regions, the Arabian peninsula, Gulf States, Jordan, and Israel the fossil groundwater are the only available water resource. Natural radioactivity is an important water quality factor of groundwater from this aquifer.Systematic analyses of radium isotopes (226Ra,228Ra,224Ra,223Ra) in over sixty groundwater samples from the Negev and Arava Valley, Israel, reveal that a large number of the pumping wells exceeds the international drinking water regulations as regulated by the USEPA and the European Community (EU). In the Lower Cretaceous Nubian sandstone (Kurnob Group) aquifer 26 out of the 29 (90%) investigated wells are having radium activity above the EU and the EPA regulations. Excluding the activity of the shorted-live 224Ra isotopes (half life of 3.6 days) the fraction of wells with activity above the EU regulation reduces to 79%. In the overlying Upper Cretaceous carbonate (Judea Group) aquifer the numbers of wells with activity exceeding the EU and EPA drinking regulations are 9 (39%) and 11 (48%) out of 23. In the carbonate aquifer we observed a linear correlation between 226Ra activity and salinity whereas in the sandstone aquifer the 228Ra isotopes is predominated and no relationship with salinity was found. Our results clearly indicate that high activity of radium, even low saline groundwater, play a key role in exploitation and water utilization for domestic and agriculture applications.

  12. Mycotoxins in corn and wheat silage in Israel.

    Science.gov (United States)

    Shimshoni, J A; Cuneah, O; Sulyok, M; Krska, R; Galon, N; Sharir, B; Shlosberg, A

    2013-01-01

    Silage is an important feed source for intensive dairy herds worldwide. Fungal growth and mycotoxin production before and during silage storage is a well-known phenomenon, resulting in reduced nutritional value and a possible risk factor for animal health. With this in mind, a survey was conducted to determine for the first time the occurrence of mycotoxins in corn and wheat silage in Israel. A total of 30 corn and wheat silage samples were collected from many sources and analysed using a multi-mycotoxin method based on LC-MS/MS. Most mycotoxins recorded in the present study have not been reported before in Israel. Overall, 23 mycotoxins were found in corn silage; while wheat silage showed a similar pattern of mycotoxin occurrence comprising 20 mycotoxins. The most common post-harvest mycotoxins produced by the Penicillium roqueforti complex were not found in any tested samples, indicative of high-quality preparation and use of silage. Moreover, none of the European Union-regulated mycotoxins--aflatoxin B1, ochratoxin, T-2 toxin, diacetoxyscirpenol and deoxynivalenol--were found above their limits of detection (LODs). The Alternaria mycotoxins--macrosporin, tentoxin and alternariol methyl ether--were highly prevalent in both corn and wheat silage (>80%), but at low concentrations. The most prominent (>80%) Fusarium mycotoxins in corn silage were fusaric acid, fumonisins, beauvericin, monilifomin, equisetin, zearalenone and enniatins, whereas in wheat silage only beauvericin, zearalenone and enniatins occurred in more than 80% of the samples. The high prevalence and concentration of fusaric acid (mean = 765 µg kg⁻¹) in Israeli corn silage indicates that this may be the toxin of highest potential concern to dairy cow performance. However, more data from different harvest years and seasons are needed in order to establish a more precise evaluation of the mycotoxin burden in Israeli silage.

  13. Forty-Two Ethiopian Boys: Observations of Their First Year in Israel.

    Science.gov (United States)

    Zima, Suellen

    1987-01-01

    Provides observations by a social worker functioning as a housemother to Ethiopian Jewish refugee adolescent boys recently arrived in Israel. Discusses boys' technologicial and cultural adjustment, health and mental health problems, and racial problems. (ABL)

  14. Iisrael paneb ise piirid paika, kui vaja / Yitzhak ben Israel ; interv. Sten A. Hankewitz

    Index Scriptorium Estoniae

    Israel, Yitzhak ben

    2006-01-01

    Iisraeli partei Kadima kandidaat parlamendivalimistel Yitzhak ben Israel selgitab, milline on programm, kui peaministriks saab Ehud Olmert. Tema sõnul Hamas ilmselt ei nõustu Teekaardi-nimelise rahuplaaniga

  15. Marketing or strategy? Defining the best approach to expand the anesthesiology workforce in Israel.

    Science.gov (United States)

    Lewis, Michael C; Grant, Gilbert J

    2015-01-01

    There is a chronic shortage of anesthesiologists in Israel. The study by Cohen et al. suggests that a marketing campaign may be one method of addressing this shortage. This commentary argues for a more comprehensive strategy based on the US experience. This would not only involve marketing as suggested by Cohen et al. but would also involve a fundamental change in the Israel anesthesia care model, as well as providing substantial financial incentives to young physicians. We believe that a combination of these approaches will help to alleviate the shortage of anesthesia providers in Israel. Creating a new class of physician extenders, namely, anesthesiologist assistants, would also provide an employment pathway for the skilled medical technicians trained by the Israel Defense Forces, and other non-physicians with an interest in anesthesiology.

  16. Reduction of the Bethe-Salpeter equation for the scattering amplitude of the particles with spin 1 to system of the integral equations for invariant functions

    CERN Document Server

    Loginov, A Y

    2002-01-01

    Bethe-Salpeter equation for the massive particles with spin 1 is considered. The scattering amplitude decomposition of the particles with spin 1 by relativistic tensors is derived. The transformation coefficients from helicity amplitudes to invariant functions is found. The integral equations system for invariant functions is obtained and partial decomposition of this system is performed. Equivalent system of the integral equation for the partial helicity amplitudes is presented.

  17. Divorce and immigration: the social integration of immigrant divorcees in Israel.

    Science.gov (United States)

    Damian, N

    1985-12-01

    This paper attempts to supply information on what motivated some 7000 Jewish divorcees to leave their countries of origin in the last decade and settle in Israel. The study also examines the differences in social integration of immigrant divorcees who came to Israel from different political systems--authoritarian or democratic regimes. Finally, the study examines the extent to which immigrant divorcees, who generally arrive in Israel with children, are to be considered as a "high risk" social group requiring special attention and particular aid. Of the 287,487 immigrants aged 15 years and over who arrived in Israel between 1970-1980, 53.7% were women (sex ratio: 860 males per 1000 females), and 3.6% were divorced. The findings indicate that there are significant differences between divorcees from Anglophone and Eastern European countries in their motivation for immigrating to Israel. The former decide to immigrate primarily for individual reasons--generally after divorce--expecting that immigration will increase chances of remarriage. In contrast, those who came from Eastern Europe are motivated by political, economic, and ideological reasons; the issue of immigration often sparks the divorce crisis. Divorcees from Anglophone countries are less socially isolated, more likely to meet veteran Israelis, and more satisfied with their life in Israel. Eastern European divorcees usually restrict their social contact to encounters with other immigrants from their country of origin, are less satisfied with their life in Israel, and feel themselves more isolated and frustrated. Despite the difficulties encountered by this group, it was found that there are no marked differences between divorcees and married immigrant women in social integration. In Israel, immigrant divorcees cannot be considered as a "high risk" social group.

  18. The tiger beetles (Coleoptera, Carabidae, Cicindelinae) of Israel and adjacent lands.

    Science.gov (United States)

    Matalin, Andrey V; Chikatunov, Vladimir I

    2016-01-01

    Based on field studies, museums collections and literature sources, the current knowledge of the tiger beetle fauna of Israel and adjacent lands is presented. In Israel eight species occur, one of them with two subspecies, while in the Sinai Peninsula nine species of tiger beetles are now known. In the combined regions seven genera from two tribes were found. The Rift Valley with six cicindelids species is the most specious region of Israel. Cylindera contorta valdenbergi and Cicindela javeti azari have localized distributions and should be considered regional endemics. A similarity analysis of the tiger beetles faunas of different regions of Israel and the Sinai Peninsula reveal two clusters of species. The first includes the Great Rift Valley and most parts of the Sinai Peninsula, and the second incorporates most regions of Israel together with Central Sinai Foothills. Five distinct adult phenological groups of tiger beetles can be distinguished in these two clusters: active all-year (three species), spring-fall (five species), summer (two species), spring-summer (one species) and spring (one species). The likely origins of the tiger beetle fauna of this area are presented. An annotated list and illustrated identification key of the Cicindelinae of Israel and adjacent lands are provided.

  19. Electronic excitation energies of molecular systems from the Bethe-Salpeter equation: Example of the H2 molecule

    CERN Document Server

    Rebolini, Elisa; Savin, Andreas

    2013-01-01

    We review the Bethe-Salpeter equation (BSE) approach to the calculation of electronic excitation energies of molecular systems. We recall the general Green's function many-theory formalism and give the working equations of the BSE approach within the static GW approximation with and without spin adaptation in an orbital basis. We apply the method to the pedagogical example of the H2 molecule in a minimal basis, testing the effects of the choice of the starting one-particle Green's function. Using the non-interacting one-particle Green's function leads to incorrect energy curves for the first singlet and triplet excited states in the dissociation limit. Starting from the exact one-particle Green's function leads to a qualitatively correct energy curve for the first singlet excited state, but still an incorrect energy curve for the triplet excited state. Using the exact one-particle Green's function in the BSE approach within the static GW approximation also leads to a number of additional excitations, all of t...

  20. Effect of the Bethe surface description on the electronic excitations induced by energetic proton beams in liquid water and DNA

    Energy Technology Data Exchange (ETDEWEB)

    Abril, Isabel, E-mail: ias@ua.e [Departament de Fisica Aplicada, Universitat d' Alacant, Apartat 99, E-03080 Alacant (Spain); Denton, Cristian D.; Vera, Pablo de [Departament de Fisica Aplicada, Universitat d' Alacant, Apartat 99, E-03080 Alacant (Spain); Kyriakou, Ioanna; Emfietzoglou, Dimitris [Medical Physics Laboratory, University of Ioannina Medical School, Ioannina 451 10 (Greece); Garcia-Molina, Rafael [Departamento de Fisica - CIOyN, Universidad de Murcia, Apartado 4021, E-30080 Murcia (Spain)

    2010-06-15

    The irradiation of biological systems by energetic ion beams has multiple applications in medical physics and space radiation health, such as hadrontherapy for cancer treatment or protection of astronauts against space radiation. Therefore, for a better control and understanding of the effects of radiation damage in living tissues, it is necessary to advance an accurate description of the energy loss from the ion beam to the target. In the present work we use the dielectric formalism to calculate the probability for an energetic proton to produce electronic excitations in two targets of high biological interest, namely, liquid water and DNA. Also, the mean energy of the electronic excitations in these targets is found as a function of the incident proton energy. The electronic response of the target, characterized by its energy-loss function (ELF), is described by several models that fit the available experimental optical data (at zero momentum transfer), but use different approaches to obtain the Bethe surface, that is, to extend the ELF to any energy and momentum transferred.

  1. Effect of the Bethe surface description on the electronic excitations induced by energetic proton beams in liquid water and DNA

    Science.gov (United States)

    Abril, Isabel; Denton, Cristian D.; de Vera, Pablo; Kyriakou, Ioanna; Emfietzoglou, Dimitris; Garcia-Molina, Rafael

    2010-06-01

    The irradiation of biological systems by energetic ion beams has multiple applications in medical physics and space radiation health, such as hadrontherapy for cancer treatment or protection of astronauts against space radiation. Therefore, for a better control and understanding of the effects of radiation damage in living tissues, it is necessary to advance an accurate description of the energy loss from the ion beam to the target. In the present work we use the dielectric formalism to calculate the probability for an energetic proton to produce electronic excitations in two targets of high biological interest, namely, liquid water and DNA. Also, the mean energy of the electronic excitations in these targets is found as a function of the incident proton energy. The electronic response of the target, characterized by its energy-loss function (ELF), is described by several models that fit the available experimental optical data (at zero momentum transfer), but use different approaches to obtain the Bethe surface, that is, to extend the ELF to any energy and momentum transferred.

  2. 3D-4D Interlinkage Of qqq Wave Functions Under 3D Support For Pairwise Bethe-Salpeter Kernels

    CERN Document Server

    Mitra, A N

    1998-01-01

    Using the method of Green's functions within a Bethe-Salpeter framework characterized by a pairwise qq interaction with a Lorentz-covariant 3D support to its kernel, the 4D BS wave function for a system of 3 identical relativistic spinless quarks is reconstructed from the corresponding 3D form which satisfies a fully connected 3D BSE. This result is a 3-body generalization of a similar 2-body result found earlier under identical conditions of a 3D support to the corresponding qq-bar BS kernel under Covariant Instaneity (CIA for short). (The generalization from spinless to fermion quarks is straightforward). To set the CIA with 3D BS kernel support ansatz in the context of contemporary approaches to the qqq baryon problem, a model scalar 4D qqq BSE with pairwise contact interactions to simulate the NJL-Faddeev equations is worked out fully, and a comparison of both vertex functions shows that the CIA vertex reduces exactly to the NJL form in the limit of zero spatial range. This consistency check on the CIA ve...

  3. Hans A. Bethe Prize: Cosmic Collisions Online - Compact Binary Mergers, Gravitational Waves and Gamma-Ray Bursts

    Science.gov (United States)

    Shapiro, Stuart

    2017-01-01

    Hans A. Bethe elucidated our understanding of the fundamental forces of Nature by exploring and explaining countless phenomena occurring in nuclear laboratories and in stars. With the dawn of gravitational wave astronomy we now can probe compact binary mergers - Nature's cosmic collision experiments - to deepen our understanding, especially where strong-field gravitation is involved. In addition to gravitational waves, some mergers are likely to generate observable electromagnetic and/or neutrino radiation, heralding a new era of multimessenger astronomy. Robust numerical algorithms now allow us to simulate these events in full general relativity on supercomputers. We will describe some recent magnetohydrodynamic simulations that show how binary black hole-neutron star and neutron star-neutron star mergers can launch jets, lending support to the idea that such mergers could be the engines that power short gamma-ray bursts. We will also show how the magnetorotational collapse of very massive stars to spinning black holes immersed in magnetized accretion disks can launch jets as well, reinforcing the belief that such ``collapsars'' are the progenitors of long gamma-ray bursts. Computer-generated movies highlighting some of these simulations will be shown. We gratefully acknowledge support from NSF Grants 1300903 and 1602536 and NASA Grant NNX13AH44G.

  4. Asymptotic Bethe Ansatz on the GKP vacuum as a defect spin chain: scattering, particles and minimal area Wilson loops

    CERN Document Server

    Fioravanti, Davide; Rossi, Marco

    2015-01-01

    Moving from Beisert-Staudacher equations, the complete set of Asymptotic Bethe Ansatz equations and $S$-matrix for the excitations over the GKP vacuum is found. The resulting model on this new vacuum is an integrable spin chain of length $R=2\\ln s$ ($s=$ spin) with particle rapidities as inhomogeneities, two (purely transmitting) defects and $SU(4)$ (residual R-)symmetry. The non-trivial dynamics of ${\\cal N}=4$ SYM appears in elaborated dressing factors of the 2D two-particle scattering factors, all depending on the 'fundamental' one between two scalar excitations. From scattering factors we determine bound states. In particular, we study the strong coupling limit, in the non-perturbative, perturbative and giant hole regimes. Eventually, from these scattering data we construct the $4D$ pentagon transition amplitudes (perturbative regime). In this manner, we detail the multi-particle contributions (flux tube) to the MHV gluon scattering amplitudes/Wilson loops (OPE or BSV series) and re-sum them to the Thermo...

  5. Bethe-Salpeter wave functions of $\\eta_c(2S)$ and $\\psi(2S)$ states from full lattice QCD

    CERN Document Server

    Nochi, Kazuki; Sasaki, Shoichi

    2016-01-01

    We discuss the internal structure of radially excited charmonium mesons based on the equal-time and Coulomb gauge Bethe-Salpeter (BS) amplitudes, which are obtained in lattice QCD. Our simulations are performed with a relativistic heavy-quark action for the charm quark on the 2+1 flavor PACS-CS gauge configurations at the lightest pion mass, $M_{\\pi}=156(7)$ MeV. The variational method is applied to the study of optimal charmonium operator for ground and first excited states of $S$-wave charmonia. We successfully calculate the BS wave functions of $\\eta_c(2S)$ and $\\psi(2S)$ states, as well as $\\eta_c(1S)$ and $J/\\psi$ states, and then estimate the root-mean-square radii of both the $1S$ and $2S$ charmonium states. We also examine whether a series of the BS wave functions from the ground state to excited states can be described by a single set of the spin-independent and spin-dependent interquark potentials with a unique quark mass. It is found that the quark kinetic mass and, both the central and spin-spin c...

  6. Numerical study of the mixed spin-1 and spin-5/2 BEG model on the Bethe lattice

    Science.gov (United States)

    Yessoufou, R. A.; Bekhechi, S.; Hontinfinde, F.

    2011-05-01

    The mixed spin- 1 and spin-5/2 ferromagnetic Ising model with bilinear ( J) and biquadratic ( K) nearest-neighbor exchange interactions and a single-ion potential or crystal-field interaction ( D) is studied on the Bethe lattice by means of exact recursion equations. First, the phase diagram of the system at zero temperature is obtained in the (D/Jq, K/Jq) plane, where q denotes the coordination number of the lattice. Second, the sublattice magnetizations as functions of the temperature, the crystal-field and the biquadratic interaction strengths are thoroughly investigated. For q = 3, the resulting phase diagrams show first and second order phase transitions as well as compensation points where the net magnetization of the whole lattice should vanish in the antiferromagnetic version of the model. One interesting feature of the model concerns the presence of tricritical points. Our calculations show that at non-zero temperature, none of the sublattice can order separately. However, under an external magnetic field, some interesting phase diagrams with partially ordered phases arise.

  7. Study of parent-child communication in joint-reading process according the investigation of Beth Ann Beschorner, foreign researcher

    Directory of Open Access Journals (Sweden)

    Maksimova A.A.

    2016-01-01

    Full Text Available The article presents the analysis carried out by Ph. D. Beth Ann Beschorner (University of Iowa, USA which concerns the training program for parents aimed at teaching them how to arrange the Dialogic reading with their childrenand and which makes it possible to conclude that due to the experience and direct contact with the written language in preschool age the idea of literacy was being formed. The article compares the empirical data obtained independently in different areas of scientific knowledge, i.e., philosophy and psychology: the study of B.A. Beschorner has a lot in common with the principles of cultural-historical psychology, formulated by L. Vygotsky, M. Lisina and other national psychologists. Although B. A. Beschorner do not stick directly to cultural-historical and activity theory, her results correspond with the basic provisions of these theories. The analysis of B.A. Beschorner’s works confirms the commonality of her findings to those obtained in terms of the cultural-historical theory. It proves that scientific thoughts even going in independent ways, may lead to similar results, which ultimately demonstrates the validity of the findings and the versatility of approaches to the problem

  8. Spectrum for heavy quarkonia and mixture of the relevant wave functions within the framework of Bethe-Salpeter equation

    Institute of Scientific and Technical Information of China (English)

    CHANG; ChaoHsi

    2010-01-01

    Considering the fact that some excited states of the heavy quarkonia (charmonium and bottomonium) are still missing in experimental observations and potential applications of the relevant wave functions of the bound states,we re-analyze the spectrum and the relevant wave functions of the heavy quarkonia within the framework of Bethe-Salpeter (B.S.) equation with a proper QCDinspired kernel.Such a kernel for the heavy quarkonia,relating to potential of the non-relativistic quark model,is instantaneous,so we call the corresponding B.S.equation as BS-In equation throughout the paper.Particularly,a new way to solve the B.S.equation,which is different from the traditional ones,is proposed here,and with it not only the known spectrum for the heavy quarkonia is re-generated,but also an important issue is brought in,i.e.,the obtained solutions of the equation ‘automatically’ include the ‘fine’,‘hyperfine’ splittings and the wave function mixture,such as S-D wave mixing in J PC = 1-states,P-F wave mixing in J PC = 2 ++ states for charmonium,bottomonium etc.It is pointed out that the best place to test the wave mixture probably is at Z-factory (e + e-collider running at Z-boson pole with extremely high luminosity).

  9. Mellom bibel og menneskerettigheter : en studie av Vårt Land og Dagens vinkling av Palestina/Israel-konflikten

    OpenAIRE

    2005-01-01

    Sammendrag Tittel: Israel og Palestina mellom bibel og menneskerettigheter. - Vinkling av Palestina/Israelkonflikten i avisene Vårt Land og Dagens lederartikler Spørsmålsstilling: Hvilke holdninger til Palestina/Israel-konflikten reflekterer lederartikler i de to kristne dagsavisene Dagen og Vårt Land? Er det mulig å spore en endring i vinklingen over tid? Hvordan kan disse lederartiklene gi oss innblikk i en debatt om Palestina/Israel-konflikten blant kristne i Norge? Metode...

  10. An electrified dust storm over the Negev desert, Israel

    Science.gov (United States)

    Yair, Yoav; Katz, Shai; Yaniv, Roy; Ziv, Baruch; Price, Colin

    2016-11-01

    We report on atmospheric electrical measurements conducted at the Wise Observatory in Mitzpe-Ramon, Israel (30°35‧N, 34°45‧E) during a large dust storm that occurred over the Eastern Mediterranean region on 10-11 February 2015. The dust was transported from the Sahara, Egypt and the Sinai Peninsula ahead of an approaching Cyprus low. Satellite images show the dust plume covering the Negev desert and Southern Israel and moving north. The concentrations of PM10 particles measured by the air-quality monitoring network of the Israeli Ministry of the Environment in Beer-Sheba reached values > 450 μg m- 3 and the AOT from the AERONET station in Sde-Boker was 1.5 on February 10th. The gradual intensification of the event reached peak concentrations on February 11th of over 1200 μg m- 3 and an AOT of 1.8. Continuous measurements of the fair weather vertical electric field (Ez) and vertical current density (Jz) were conducted at the Wise Observatory with 1 minute temporal resolution. Meteorological data was also recorded at the site. As the dust was advected over the observatory, very large fluctuations in the electrical parameters were registered. From the onset of the dust storm, the Ez values changed between + 1000 and + 8000 V m- 1 while the current density fluctuated between - 10 pA m2 and + 20 pA m2, both on time-scales of a few minutes. These values are significant departures from the average fair-weather values measured at the site, which are ~- 200 V m- 1 and ~ 2 pA m2. The disturbed episodes lasted for several hours on February 10th and the 11th and coincided with local meteorological conditions related to the wind speed and direction, which carried large amounts of dust particles over our observation station. We interpret the rapid changes as caused by the transport of electrically charged dust, carrying an excess of negative charge at lower altitudes.

  11. Anaphylaxis in Israel: experience with 92 hospitalized children.

    Science.gov (United States)

    Hoffer, V; Scheuerman, O; Marcus, N; Levy, Y; Segal, N; Lagovsky, I; Monselise, Y; Garty, B Z

    2011-03-01

    Little is known about the courses, causes, and clinical features of anaphylaxis in children outside the USA and Europe. Our objective was to evaluate the events of anaphylaxis in children admitted to the Schneider Children's Medical Center of Israel, a major tertiary facility, over a 12-year period. Ninety-two children with anaphylaxis (50 boys, 42 girls) aged 14 days to 18 yr (mean, 7.4 yr) were hospitalized during the study period. The event occurred at home in 52 children (56%), in a medical institution in 24 (26%), outdoors in 13 (15%), at school in 2 (2%), and in an unspecified location in 1 (1%). The main causes were foods (43%), mainly milk and nuts, medications (22%), and hymenoptera venom (11%); in five children, anaphylaxis occurred during general anesthesia, and in 5, the causative agent could not be determined. Food-induced anaphylaxis tended to occur in younger children. Forty-eight children (52%) had a history of atopy (mainly asthma). Hospital treatment consisted of corticosteroids (85%), antihistamines (75%), epinephrine (72%), and β2 agonists (42%). Seven patients were admitted to intensive care units. There were no fatalities. EpiPen was used by only one of the 16 patients with more than one episode of anaphylaxis, indicating that patient and parent education in the application of the EpiPen needs to be improved.

  12. Achalasia in central Israel, 1973-83: clinical aspects.

    Science.gov (United States)

    Arber, N; Grossman, A; Tiomny, E; Rattan, J; Kadish, U; Novis, B; Neuman, G; Lilos, P; Rozen, P; Gilat, T

    1994-12-01

    In the framework of an epidemiologic study we collected data on all the 162 patients with achalasia in central Israel. The mean (+/- SD) follow-up was 9.9 +/- 8.7 years (range 1-52). At the last, as compared to the initial examination, the clinical condition of the patients had improved: 38% were without dysphagia as compared to 0% initially, 67% did not vomit and 92% did not complain of aspiration as compared to 17% and 68% initially, and 67% did not complain of chest pain as against 36% initially. In contrast, X-ray examinations, endoscopy as well as manometry did not show major changes. Esophageal retention of a semisolid radiolabeled meal 10 min after ingestion was 46 +/- 25% initially and 34 +/- 26% at last examination (NS). Medical therapy was given to 99 patients and a beneficial response was initially noted in 65% of them. About 88.7% had a beneficial response to surgery and 82.7% to pneumatic dilatations which were associated with a 7.3% perforation rate. Overall the clinical course of this unselected, regional group of patients was better than expected.

  13. A Transitional Gundi (Rodentia: Ctenodactylidae from the Miocene of Israel.

    Directory of Open Access Journals (Sweden)

    Raquel López-Antoñanzas

    Full Text Available We describe a new species of gundi (Rodentia: Ctenodactylidae: Ctenodactylinae, Sayimys negevensis, on the basis of cheek teeth from the Early Miocene of the Rotem Basin, southern Israel. The Rotem ctenodactylid differs from all known ctenodactylid species, including Sayimys intermedius, which was first described from the Middle Miocene of Saudi Arabia. Instead, it most resembles Sayimys baskini from the Early Miocene of Pakistan in characters of the m1-2 (e.g., the mesoflexid shorter than the metaflexid, the obliquely orientated hypolophid, and the presence of a strong posterolabial ledge and the upper molars (e.g., the paraflexus that is longer than the metaflexus. However, morphological (e.g., presence of a well-developed paraflexus on unworn upper molars and dimensional (regarding, in particular, the DP4 and M1 or M2 differences between the Rotem gundi and Sayimys baskini distinguish them and testify to the novelty and endemicity of the former. In its dental morphology, Sayimys negevensis sp. nov. shows a combination of both the ultimate apparition of key-characters and incipient features that would be maintained and strengthened in latter ctenodactylines. Thus, it is a pivotal species that bridges the gap between an array of primitive ctenodactylines and the most derived, Early Miocene and later, gundis.

  14. Planning community-oriented primary care in Israel.

    Science.gov (United States)

    Doron, H

    1984-01-01

    The concept of primary care in the Kupat Holim Health Insurance Institution encompasses all the stages of health: the promotion of health, personal preventive care, curative care, and rehabilitation in the community. Primary care is, thus, the foundation of this nationwide comprehensive health insurance and health care delivery system; Kupat Holim covers 3.2 million people, close to 80 percent of Israel's total population in 1983. Primary care clinics in the community are the main focus of care and have undergone changes in the types of health care providers and functions as population characteristics change. In this system, the planning process allows constant review of changing needs and demands and the introduction of new functions. The main approaches to planning primary care that are presented deal with team members and the division of work in the community clinic, manpower training at undergraduate and postgraduate levels, and the content of primary care. Current trends include the extension of services provided to the patient in his home as well as the clinic and greater emphasis on preventive care. The interrelationship between policy and planning for primary care is strengthened by the linkage between financer, provider, and consumer in Kupat Holim. The planning process must make optimal use of this linkage to guide those responsible for health policy in implementing effective change.

  15. [Allergic responses to date palm and pecan pollen in Israel].

    Science.gov (United States)

    Waisel, Y; Keynan, N; Gil, T; Tayar, D; Bezerano, A; Goldberg, A; Geller-Bernstein, C; Dolev, Z; Tamir, R; Levy, I

    1994-03-15

    Date palm (Phoenix dactylifera) and pecan (Carya illinoensis) trees are commonly planted in Israel for fruit, for shade, or as ornamental plants. Pollen grains of both species are allergenic; however, the extent of exposure to such pollen and the incidence of allergic response have not been studied here. We therefore investigated skin-test responses to pollen extracts of 12 varieties of palm and 9 of pecan in 705 allergic patients living in 3 cities and 19 rural settlements. Sensitivity to the pollen extracts of both species was much higher among residents of rural than of urban communities. Moreover, there was a definite relationship between the abundance of these trees in a region and the incidence of skin responders to their pollen. Sensitivity was frequent in settlements rich in these 2 species, such as those with nearby commercial date or pecan plantations. In general, sensitivity to date pollen extracts was lower than to pecan. However, differences in skin responses to pollen extracts of various clones were substantiated. Air sampling revealed that pollen pollution decreased considerably with distance from the trees. At approximately 100 m from a source concentrations of airborne pollen were low. Since planting of male palm and pecan trees in population centers would increase pollen pollution, it should be avoided.

  16. Regulated competition and citizen participation: lessons from Israel.

    Science.gov (United States)

    Chinitz, David

    2000-06-01

    OBJECTIVE: To investigate the relationship between health system structure and citizen participation, in particular whether increased reliance on competition encourages or depresses citizen involvement. SETTING: The case of Israel's ongoing health reform, based on regulated competition among sick funds, is examined. DESIGN: Interviews with government officials and representatives of consumer groups; analysis of policy documents, judicial rulings, public surveys and journalistic accounts. RESULTS: The Israeli reform is based in large measure on a regulated competition model, in which citizens have free choice among highly regulated competing sick funds. At the same time, the reform process has been accompanied by legal, institutional and political frameworks, as well as significant interest group activity, all aimed at increasing public input into processes of health policy making and implementation. The Israeli case, it is argued, lends support to the proposition that citizen participation (voice) and individual choice (exit) are complementary, rather than alternative, modes of ensuring citizen influence over health services. The question is whether the development of multiple avenues for citizen involvement represents disarray or a healthy social learning process regarding the running of the health system. CONCLUSION: This paper expresses cautious optimism that citizen participation is a projection of a healthy social learning process, and suggests directions for public policy to encourage this outcome.

  17. Thermodynamic Bethe ansatz for non-equilibrium steady states: exact energy current and fluctuations in integrable QFT

    Science.gov (United States)

    Castro-Alvaredo, Olalla; Chen, Yixiong; Doyon, Benjamin; Hoogeveen, Marianne

    2014-03-01

    We evaluate the exact energy current and scaled cumulant generating function (related to the large-deviation function) in non-equilibrium steady states with energy flow, in any integrable model of relativistic quantum field theory (IQFT) with diagonal scattering. Our derivations are based on various recent results of Bernard and Doyon. The steady states are built by connecting homogeneously two infinite halves of the system thermalized at different temperatures Tl, Tr, and waiting for a long time. We evaluate the current J(Tl, Tr) using the exact QFT density matrix describing these non-equilibrium steady states and using Zamolodchikov’s method of the thermodynamic Bethe ansatz (TBA). The scaled cumulant generating function is obtained from the extended fluctuation relations which hold in integrable models. We verify our formula in particular by showing that the conformal field theory (CFT) result is obtained in the high-temperature limit. We analyze numerically our non-equilibrium steady-state TBA equations for three models: the sinh-Gordon model, the roaming trajectories model, and the sine-Gordon model at a particular reflectionless point. Based on the numerics, we conjecture that an infinite family of non-equilibrium c-functions, associated with the scaled cumulants, can be defined, which we interpret physically. We study the full scaled distribution function and find that it can be described by a set of independent Poisson processes. Finally, we show that the ‘additivity’ property of the current, which is known to hold in CFT and was proposed to hold more generally, does not hold in general IQFT—that is, J(Tl, Tr) is not of the form f(Tl) - f(Tr).

  18. Registered nurses in Israel - workforce employment characteristics and projected supply

    Directory of Open Access Journals (Sweden)

    Nirel Nurit

    2012-03-01

    Full Text Available Abstract Background Surveys of nursing supplies around the world have furnished a better understanding of the structure of the workforce, helped identify shortages, and plan professional training. This study aimed to examine the employment and workforce characteristics of registered nurses and the projected supply in Israel as a tool for planning. Methods 1. A survey of a national sample of 10% of the RNs of working age (3,200 nurses. 2. Analysis of administrative data from the Ministry of Health' Nursing Division and the Central Bureau of Statistics. Results Most registered nurses are employed (89% - 67% work full time. The workforce is mature (45% are above 45, trained (55% qualified beyond the basic course, 48% hold a BA, 18% hold an MA or PhD, and stable: few quit the profession altogether. The likelihood of "survival" in the profession after 10 years is 93%; after 20 years - 88%. 23% have made some transition in the last 10 years (most - a single transition. Most of the transitions are from hospital to community work. Supply projections show a decrease in the total number of RNs in the nursing workforce from 28,500 in 2008 to 21,201 in 2028 - i.e., of 25% by the end of the period. As for the ratio per 1,000 population, the drop is from 4 registered nurses/1,000 in 2008 to 2/1,000 in 2028. Conclusions The study findings provide more rigorous projections of supply than in the past on the declining rates of the nursing workforce in the coming decades, and contribute to decision making about the scope of training and recruitment. The study also points to the implications for policy decisions regarding the findings that the young nursing workforce is less stable, that there are advantages to recruiting a more mature workforce, and that post-basic education is connected with workforce stability.

  19. Atmospheric predictors for major floods in the Negev Desert, Israel

    Science.gov (United States)

    Kahana, Ron; Ziv, Baruch; Dayan, Uri; Enzel, Yehouda

    2004-07-01

    The study examines the ability of a set of atmospheric variables to predict major floods in the Negev Desert in the southern part of Israel. The two dominant synoptic types, which contributed over 70% of the major floods during 1965-94 in that region, were examined. These are: the active Red Sea trough (ARST), a surface trough along the Red Sea, combined with a pronounced upper trough; and the Syrian low (SL), an intense Mediterranean cyclone centred over Syria.For each synoptic type, a set of atmospheric variables (predictors) was chosen to reflect its unique atmospheric features, and a prediction score was calculated as the ratio between the number of flood-producing storms and the total number of events in which all the variables exceeded their threshold values.The prediction score for the ARST type is 86%. Moreover, the predictors identify the major flood dates without any false date (100%) for 4 of the 5 months in which major floods of this type had occurred. Most of the predictors are found at the 500 hPa level, and the most powerful is the v/u ratio, which represents the southerly wind component and is responsible for the transport of moist tropical air masses (essential for convection) toward the Middle East. The prediction score for the SL type is 73%. The intensity and structure of the surface cyclone are found to be most powerful predictors, although the importance of geopotential height at 500 hPa indicates that these types of flood depend on the combined effect of several factors. Transforming these remarkably high scores into a high-skill operational forecast of major floods in the Negev requires reliable forecast models to supply the desired variables with reasonable accuracy. It seems that the current operational models, together with our derived predictors, have the potential to yield a successful forecast of major floods 2 days in advance.

  20. First description of Bartonella bovis in cattle herds in Israel.

    Science.gov (United States)

    Rudoler, Nir; Rasis, Michal; Sharir, Benny; Novikov, Anna; Shapira, Gregory; Giladi, Michael

    2014-09-17

    Bartonella bovis has been described in beef and dairy cattle worldwide, however the reported prevalence rates are inconsistent, with large variability across studies (0-89%). This study describes the first isolation and characterization of B. bovis among cattle herds in the Middle East. Blood samples from two beef cattle herds (each sampled thrice) and one dairy herd (sampled twice) in Israel were collected during a 16-months period. Overall, 71 of 95 blood samples (75%) grew Bartonella sp., with prevalence of 78% and 59% in beef and dairy cattle, respectively. High level bacteremia (≥100,000 colony forming units/mL) was detected in 25 specimens (26%). Such high-level bacteremia has never been reported in cattle. Two dairy cows and one beef cow remained bacteremic when tested 60 or 120 days apart, respectively, suggesting that cattle may have persistent bacteremia. One third of animals were infested with ticks. Sequence analysis of a gltA fragment of 32 bacterial isolates from 32 animals revealed 100% homology to B. bovis. Species identification was confirmed by sequence analysis of the rpoB gene. Phylogenetic analysis based on the concatenated sequences of gltA and rpoB demonstrated that the isolates described herein form a monophyletic group with B. bovis strains originating from cattle worldwide. Taken together, the high prevalence of bacteremia, including high-level bacteremia, in beef and dairy cattle, the potential to develop prolonged bacteremia, the exposure of cattle to arthropod vectors, and proximity of infected animals to humans, make B. bovis a potential zoonotic agent.

  1. Newly recognized Pleistocene human teeth from Tabun Cave, Israel.

    Science.gov (United States)

    Coppa, Alfredo; Grün, Rainer; Stringer, Chris; Eggins, Stephen; Vargiu, Rita

    2005-09-01

    Seven human teeth from Tabun Cave, Israel, curated at the Natural History Museum London since 1955, are of uncertain provenance and identity. They are all from the upper dentition, without duplications, and are characterized by a similar preservation. The Catalogue of Fossil Hominids (1975) suggested that they might have derived from Tabun Layer A (Bronze Age to Recent). However, one of us (AC) noted some distinctive features of these teeth that warranted further study. They are here assigned to a single individual, Tabun BC7. Their morphology and metrics were then compared with the frequency of Late Pleistocene and Early Holocene groups from Europe, North Africa and Middle East. A fragment of the right M3 crown of Tabun BC7 was removed for ESR and U-analysis, and it was determined that only samples from Layer B have similar dose values. Using the sediment dose values of layer B, preliminary age estimates of 82 +/- 14 ka (early U-uptake) and 92+/-18 ka (linear uptake) were obtained. U-series disequilibrium determined from other samples attributed to Layer B resulted in a U-uptake history close to linear uptake, giving a very comparable age estimate of 90(+30)(-16) ka. The dose value previously obtained on an enamel fragment from the Tabun C1 dentition is nearly double the value measured for BC7, and tentative age estimates for C1 were in the range of 143+/-37 ka. However, due to uncertainties in the exact provenance of the human fossils, we cannot confirm that C1 is older than the new tooth sampled here, and both C1 and BC7 can be attributed to Layer B on chronological grounds. On the basis of chronology, dental morphology and metrics, the specimen named Tabun BC7 was identified as a probable Neanderthal.

  2. Sinkhole formation and subsidence along the Dead Sea coast, Israel

    Science.gov (United States)

    Yechieli, Yoseph; Abelson, Meir; Baer, Gideon

    2016-05-01

    More than 4,000 sinkholes have formed since the 1980s within a 60-km-long and 1-km-wide strip along the western coast of the Dead Sea (DS) in Israel. Their formation rate accelerated in recent years to >400 sinkholes per year. They cluster mostly in specific sites up to 1,000 m long and 200 m wide, which align parallel to the general direction of the fault systems associated with the DS Rift. The abrupt appearance of the sinkholes reflects changes to the groundwater regime around the shrinking DS. The eastward retreat of the shoreline and the lake-level drop (1 m/year in recent years) cause an eastward and downward migration of the fresh/saline groundwater interface. Consequently, a subsurface salt layer, which was previously enveloped by saline groundwater, is gradually being invaded and submerged by relatively fresh groundwater, and cavities form due to the rapid dissolution of the salt. Collapse of the overlying sediments into these cavities results in sinkholes at the surface. An association between sinkhole sites and land subsidence is revealed by interferometric synthetic aperture radar (InSAR) measurements. On a broad scale (hundreds of meters), subsidence occurs due to compaction of fine-grained sediments as groundwater levels decline along the retreating DS shoreline. At smaller scales (tens of meters), subsidence appears above subsurface cavities in association with the sinkholes, serving in many cases as sinkhole precursors, a few weeks to more than a year before their actual appearance at the surface. This paper overviews the processes of sinkhole formation and their relation to land subsidence.

  3. On the Dressing Factors, Bethe Equations and Yangian Symmetry of Strings on AdS3 x S3 x T4

    CERN Document Server

    Borsato, Riccardo; Sfondrini, Alessandro; Stefanski, Bogdan; Torrielli, Alessandro

    2016-01-01

    Integrability is believed to underlie the AdS3/CFT2 correspondence with sixteen supercharges. We elucidate the role of massless modes within this integrable framework. Firstly, we find the dressing factors that enter the massless and mixed-mass worldsheet S matrix. Secondly, we derive a set of all-loop Bethe Equations for the closed strings, determine their symmetries and weak-coupling limit. Thirdly, we investigate the underlying Yangian symmetry in the massless sector and show that it fits into the general framework of Yangian integrability. In addition, we compare our S matrix in the near-relativistic limit with recent perturbative worldsheet calculations of Sundin and Wulff.

  4. Separation of contributions from deeply virtual Compton scattering and its interference with the Bethe-Heitler process in measurements on a hydrogen target

    Energy Technology Data Exchange (ETDEWEB)

    Airapetian, A. [Giessen Univ. (Germany). Physikalisches Inst.; Michigan Univ., Ann Arbor MI (United States). Randall Lab. of Physics; Akopov, N. [Yerevan Physics Institue (Armenia); Akopov, Z. [DESY, Hamburg (DE)](and others)

    2009-09-15

    Hard exclusive leptoproduction of real photons from an unpolarized proton target is studied in an effort to elucidate generalized parton distributions. The data accumulated during the years 1996-2005 with the HERMES spectrometer are analyzed to yield asymmetries with respect to the combined dependence of the cross section on beam helicity and charge, thereby revealing previously unseparated contributions from deeply virtual Compton scattering and its interference with the Bethe-Heitler process. The integrated luminosity is sufficient to show correlated dependences on two kinematic variables, and provides the most precise determination of the dependence on only the beam charge. (orig.)

  5. Edge-to-site reduction of Bethe-Peierls approximation for nearest neighbor exclusion cubic lattice particle systems and thermodynamic modeling of liquid silicates.

    Science.gov (United States)

    Vladimirov, Igor; Jak, Eugene

    2007-04-28

    We study an interacting particle system on the simple cubic lattice satisfying the nearest neighbor exclusion (NNE) which forbids any two nearest sites to be simultaneously occupied. Under the constraint, we develop an edge-to-site reduction of the Bethe-Peierls entropy approximation of the cluster variation method. The resulting NNE-corrected Bragg-Williams approximation is applied to statistical mechanical modeling of a liquid silicate formed by silica and a univalent network modifier, for which we derive the molar Gibbs energy of mixing and enthalpy of mixing and compare the predictions with available thermodynamic data.

  6. Quark-antiquark composite systems:the Bethe--Salpeter equation in the spectral-integration technique in the case of the different quark masses

    CERN Document Server

    Anisovich, A V; Markov, V N; Matveev, M A; Sarantsev, A V

    2004-01-01

    The Bethe--Salpeter equations for the quark-antiquark composite systems with different quark masses, such as $q\\bar s$ (with $q=u$,$d$), $q\\bar Q$ and $s \\bar Q$ (with $Q=c$,$b$), are written in terms of spectral integrals. For the mesons characterized by the mass $M$, spin $J$ and radial quantum number $n$, the equations are presented for the $(n,M^2)$-trajectories with fixed $J$. In the spectral-integral technique one can use the energy-dependent forces and get beyond instantaneous approximation. The mixing between states with different quark spin $S$ and angular momentum $L$ are also discussed.

  7. Attitudes towards Bilingual Arab-Hebrew Education in Israel: A Comparative Study of Jewish and Arab Adults

    Science.gov (United States)

    Azaiza, Faisal; Hertz-Lazarowitz, Rachel; Shoham, Meyrav; Amara, Muhammad; Mor-Sommerfeld, Aura; 'Ali, Nohad

    2011-01-01

    This study examines attitudes towards bilingual Jewish-Arab education among Jewish and Arab adults in Israel. The sample consisted of 1014 respondents who participated in a national phone survey in late 2006. Results indicate that Arabs are significantly more supportive of bilingual education in Israel than Jews. Positive attitudes regarding the…

  8. Metopina Macquart (Diptera: Phoridae) of Israel, with description of a new species, new records and an identification key.

    Science.gov (United States)

    Mostovski, Mike B

    2016-05-12

    Metopina kuslitzkyi sp. n. with a rudimentary anterior flap on tergite 5 in female is described from Israel. Four other species, the Palaearctic Metopina braueri, M. pileata, M. ulrichi and Afrotropical M. obsoleta, have been recorded from Israel for the first time, in addition to the previously known M. heselhausi. An illustrated identification key to the Israeli species of Metopina is provided.

  9. Teachers' Perceptions of School Principals' Leadership Styles and Parental Involvement--The Case of the Arab Education System in Israel

    Science.gov (United States)

    Arar, Khalid; Abramovitz, Ruth; Daod, Saeda; Awad, Yasir; Khalil, Mahmood

    2016-01-01

    This study deals with teachers' perceptions of principals' leadership style as it affects parental involvement (PI) in the special context of the Arab education system in Israel. Contemporary perceptions of education within the Western individualist society, including in the majority society in Israel, regard the full spectrum of PI, ranging from…

  10. Sustainability of Disability-Related Services in Canada and Israel: Will the Real Universal Design Please Stand Up?

    Science.gov (United States)

    Fichten, Catherine Susan; Heiman, Tali; Havel, Alice; Jorgensen, Mary; Budd, Jillian; King, Laura

    2016-01-01

    We have examined the sustainability of providing services for students with disabilities in higher education in Canada and Israel. The two countries differ in their approaches: Israel subscribes to the accommodations model of service delivery; Canada, to the universal design approach. Case examples of services to students with disabilities in…

  11. Genetic characterization of Toxoplasma gondii isolates from Portugal, Austria, and Israel reveals higher genetic variability within the type II lineage

    Science.gov (United States)

    This study compared genetic diversity of Toxoplasma gondii isolates from Portugal, Austria and Israel. For this, we genotyped 90 T. gondii isolates (16 from Portugal, 67 from Austria and 7 from Israel) using 10 nested PCR-restriction length polymorphism (RFLP) genetic markers and 15 microsatellite (...

  12. 78 FR 15802 - United States-Israel Free Trade Area Implementation Act; Re-Designation of Qualifying Industrial...

    Science.gov (United States)

    2013-03-12

    ... Qualifying Industrial Zones AGENCY: Office of the United States Trade Representative. ACTION: Notice. SUMMARY... industrial zones (QIZs) encompassing portions of Israel and Jordan or Israel and Egypt are eligible to... certain tariff treatment for articles of the West Bank, the Gaza Strip, and qualifying industrial...

  13. Law and bioethics in Israel: between liberal ethical values and Jewish religious norms.

    Science.gov (United States)

    Shapira, Amos

    2006-01-01

    In Israel, the bulk of the population leads an essentially secularist, liberal, and permissive individual lifestyle. At the same time, certain cultural-religious values, institutions, practices, and injunctions are formally woven into the Israeli communal fabric. Consequently, the bioethical discourse in Israel has evolved in a sociocultural context which manifests a unique mix of orthodoxy and secularism, of communal paternalism and assertive individualism, of proscription and permissiveness, of religious norms and liberal ethical values. There can be no denying of the impact of Jewish religious tenets, and the political groups that champion them, on the shaping of Israeli biomedical jurisprudence. Yet it would be wrong to assume that such impact invariably has been prohibitive and restrictive. To illustrate the diverse influence of religious attitudes on normative postures regarding biomedical dilemmas in Israel, I will focus on end-of-life medical decision making, on the one hand and on embryonic stem cells research, on the other.

  14. Correlations between values of daily beam, diffuse and global radiation for Beer Sheva, Israel

    Energy Technology Data Exchange (ETDEWEB)

    Ianetz, A. (Israel Meteorological Service, Bet Dagan (Israel). Research and Development Dept.); Kudish, A.I. (Ben-Gurion Univ. of the Negev, Beersheba (Israel). Dept. of Chemical Engineering)

    1992-06-01

    Empirical correlations for predicting both beam and diffuse radiation at Beer Sheva, located in the semi-arid southern region of Israel, have been developed. These equations relate either the beam or the diffuse fraction of the global radiation to the clearness index. The available data, composed of normal incidence beam and global radiation measurements, have been analyzed on both a seasonal and a yearly basis. They have been compared to empirical equations previously reported in the literature for six sites in the Middle East region. In the case of Qidron, Israel, and three Greek sites, there was close agreement between the correlations, whereas in the remaining two sites (Gilat, Israel and Fudhaliyah, Iraq) the correlations were quite different. Reasons for the discrepancies in the latter two cases are presented in the text. (author).

  15. On the viability of the truncated Israel-Stewart theory in cosmology

    Science.gov (United States)

    Shogin, Dmitry; Amund Amundsen, Per; Hervik, Sigbjørn

    2015-10-01

    We apply the causal Israel-Stewart theory of irreversible thermodynamics to model the matter content of the Universe as a dissipative fluid with bulk and shear viscosity. Along with the full transport equations we consider their widely used truncated version. By implementing a dynamical systems approach to Bianchi type IV and V cosmological models with and without cosmological constant, we determine the future asymptotic states of such Universes and show that the truncated Israel-Stewart theory leads to solutions essentially different from the full theory. The solutions of the truncated theory may also manifest unphysical properties. Finally, we find that in the full theory shear viscosity can give a substantial rise to dissipative fluxes, driving the fluid extremely far from equilibrium, where the linear Israel-Stewart theory ceases to be valid.

  16. The Chinese Are Coming: The Political Implications of the Growing Sino-Israel Economic Ties

    Institute of Scientific and Technical Information of China (English)

    MERON; MEDZINI

    2015-01-01

    The relationship between the State of Israel and the People’s Republic of China offers a fascinating case in modern international relations.Ostensibly there is not much that unites the two countries so different in size and population,in regimes and politics,yet,over the past two decades,these relations have acquired a great deal of importance and significance for both.While it is easy to understand the attraction to China of Israel’s experience,innovation and its exemplary human capital,it is less evident what China is seeking to achieve in deepening its ties with Israel.This paper attempts to assess the state of Sino-Israel bilateral relations and their impact on the future of the two nations.

  17. Prevalence and risk factors for foot and mouth disease infection in small ruminants in Israel.

    Science.gov (United States)

    Elnekave, Ehud; van Maanen, Kees; Shilo, Hila; Gelman, Boris; Storm, Nick; Berdenstain, Svetlane; Berke, Olaf; Klement, Eyal

    2016-03-01

    During the last decade, 27% of the foot and mouth disease (FMD) outbreaks in Israel affected small ruminant (SR) farms. FMD outbreaks reoccur in Israel despite vaccination of all livestock and application of control measures. We performed a cross-sectional serological study, aimed at estimating the prevalence of FMD infection in SR in Israel and the possible risk factors for infection. Overall, 2305 samples of adult sheep (n=1948) and goats (n=357) were collected during 2011-14 in two separate surveys. One survey was based on random sampling of intensive management system farms and the other was originally aimed at the detection of Brucella melitensis at extensive and semi-intensive management system farms. Sera were tested by NS blocking ELISA (PrioCHECK(®)). The serological prevalence of antibodies against non structural proteins (NSP) of FMD virus was estimated at 3.7% (95% confidence interval (CI95%)=3.0% -4.5%). Additionally, a significantly lower infection prevalence (p value=0.049) of 1.0% (CI95%=0.1%-3.6%) was found in a small sample (197 sera) of young SR, collected during 2012. The positive samples from adult SR were scattered all over Israel, though two significant infection clusters were found by the spatial scan statistic. Occurrence of an outbreak on a non-SR farm within 5km distance was associated with a fifteen times increase in the risk of FMD infection of SR in the univariable analysis. Yet, this variable was not included in the multivariable analysis due to collinearities with the other independent variables. Multivariable logistic regression modeling found significantly negative associations (P valueprevalence indicates that in Israel SR pose only limited role in the transmission and dissemination of FMD. This conclusion may be applicable for other endemic countries in which, similar to Israel, all livestock are vaccinated against FMD.

  18. The Genetics of Bene Israel from India Reveals Both Substantial Jewish and Indian Ancestry.

    Science.gov (United States)

    Waldman, Yedael Y; Biddanda, Arjun; Davidson, Natalie R; Billing-Ross, Paul; Dubrovsky, Maya; Campbell, Christopher L; Oddoux, Carole; Friedman, Eitan; Atzmon, Gil; Halperin, Eran; Ostrer, Harry; Keinan, Alon

    2016-01-01

    The Bene Israel Jewish community from West India is a unique population whose history before the 18th century remains largely unknown. Bene Israel members consider themselves as descendants of Jews, yet the identity of Jewish ancestors and their arrival time to India are unknown, with speculations on arrival time varying between the 8th century BCE and the 6th century CE. Here, we characterize the genetic history of Bene Israel by collecting and genotyping 18 Bene Israel individuals. Combining with 486 individuals from 41 other Jewish, Indian and Pakistani populations, and additional individuals from worldwide populations, we conducted comprehensive genome-wide analyses based on FST, principal component analysis, ADMIXTURE, identity-by-descent sharing, admixture linkage disequilibrium decay, haplotype sharing and allele sharing autocorrelation decay, as well as contrasted patterns between the X chromosome and the autosomes. The genetics of Bene Israel individuals resemble local Indian populations, while at the same time constituting a clearly separated and unique population in India. They are unique among Indian and Pakistani populations we analyzed in sharing considerable genetic ancestry with other Jewish populations. Putting together the results from all analyses point to Bene Israel being an admixed population with both Jewish and Indian ancestry, with the genetic contribution of each of these ancestral populations being substantial. The admixture took place in the last millennium, about 19-33 generations ago. It involved Middle-Eastern Jews and was sex-biased, with more male Jewish and local female contribution. It was followed by a population bottleneck and high endogamy, which can lead to increased prevalence of recessive diseases in this population. This study provides an example of how genetic analysis advances our knowledge of human history in cases where other disciplines lack the relevant data to do so.

  19. Detailed analysis of allergic cutaneous reactions to spinal cord stimulator devices

    Directory of Open Access Journals (Sweden)

    Chaudhry ZA

    2013-08-01

    Full Text Available Zeshan Ahmed Chaudhry,1 Umer Najib,2 Zahid H Bajwa,3 W Carl Jacobs,4 Javed Sheikh,5 Thomas T Simopoulos61Department of Diagnostic and Interventional Neuroradiology, Massachusetts General Hospital/Harvard Medical School, Boston, MA, USA; 2Department of Neurology, Robert C Byrd Health Sciences Center of West Virginia University, Morgantown, WV, USA; 3Boston Headache Institute, Waltham, MA, USA; 4Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA; 5Department of Medicine, Allergy and Immunology, 6Department of Anesthesia, Beth Israel Deaconess Medical Center, Brookline, MA, USAAbstract: The use of spinal cord stimulation (SCS devices to treat chronic, refractory neuropathic pain continues to expand in application. While device-related complications have been well described, inflammatory reactions to the components of these devices remain underreported. In contrast, hypersensitivity reactions associated with other implanted therapies, such as endovascular and cardiac rhythm devices, have been detailed. The purpose of this case series is to describe the clinical presentation and course of inflammatory reactions as well as the histology of these reactions. All patients required removal of the entire device after developing inflammatory reactions over a time course of 1–3 months. Two patients developed a foreign body reaction in the lead insertion wound as well as at the implantable pulse generator site, with histology positive for giant cells. One patient developed an inflammatory dermatitis on the flank and abdomen that resolved with topical hydrocortisone. “In vivo” testing with a lead extension fragment placed in the buttock resulted in a negative reaction followed by successful reimplantation of an SCS device. Inflammatory reactions to SCS devices can manifest as contact dermatitis, granuloma formation, or foreign body reactions with giant cell formation. Tissue diagnosis is essential, and

  20. Implicancias estratégico-militares del conflicto entre Israel y Hezbollah

    OpenAIRE

    2010-01-01

    La guerra de 2006, entre Israel y Hezbollah, influyó significativamente sobre la noción que los actores involucrados tenían respecto de las capacidades del otro y seguramente contribuirá a los análisis de las posibilidades y capacidades de los actores involucrados Israel ha redefinido su doctrina militar enfocándose en la necesidad de alcanzar un resultado claro y definitorio, reduciendo al mínimo posible el período de combate. Esta doctrina se basa en la utilización de ataques desproporciona...

  1. Pluralist social constraints on the development of a health care system: the case of Israel.

    Science.gov (United States)

    Palley, H A; Yishai, Y; Ever-Hadani, P

    1983-01-01

    The effectiveness of Israel's health care system is hindered by pluralism, in terms both of its many separate health service institutions and of the particularism of those institutions. Although the health care system provides modern health care to a widely insured population, it does so inefficiently and at unnecessary expense. The lack of vertical and horizontal integration of the health care system has led to problems of fragmentation, duplication, and lack of coordination of services. Because of its limited resources, Israel must work to surmount this pluralism and achieve integrated planning if it is to succeed in providing the efficient and cost-effective care its population needs.

  2. German-Israeli Relations: Security of Israel--Reason of State?

    Science.gov (United States)

    2013-03-01

    israelischen Beziehungen - Die Rolle des Gedächtnisses,“ in Auswärtiges Amt, Deutschland und Israel – Ein Symposium, (Berlin: Edition Diplomatie , 2005...AusstellungTagDerOffenenTuer/LuxemburgerAbkommen_n ode.html (accessed December 5, 2012). 14 Avi Primor, “Gedächtnis, Ressentiment und Diplomatie – deutsch-israelische... Diplomatie , 2005), 73. 15 Muriel Asseburg and Jan Busse, “Deutschlands Politik gegenüber Israel,“ in Thomas Jäger, Alexander Höse, Kai Oppermann, eds

  3. NEW MIGRATIONS TO ISRAEL AND THE EMERGENCE OF A COSMOPOLITAN TEL AVIV

    OpenAIRE

    2006-01-01

    During the 90's, Israel and the Palestinians were unable to reach a Peace agreement and this unsuccessful period led to the production of a new Israeli ethnoscape. With a more and more frequent closures of the borders of Israel (in its pre-1967 limits) to the Palestinians workers, the Israeli government had to authorize the entrance of Foreign workers from Eastern Europe (Romania, Poland) but also from Asia (Thailand, the Philippines). With the fear of their “settlement”, these new “faces” of...

  4. The impact of ongoing national terror on the community of hospital nurses in Israel.

    Science.gov (United States)

    Ron, Pnina; Shamai, Michal

    2014-04-01

    The main goal of this study was to explore the connections between the exposure of nurses in Israel to national terror and the levels of distress experienced due to ongoing terror attacks. The data were collected from 214 nurses from various parts of Israel who work in three types of heath services (mainly hospital departments) and provide help to victims of terror. The nurses reported very high levels of burnout, high levels of stress and medium-to high levels of intrusive memories. Levels of exposure were associated with burnout, intrusive memories and level of stress. More professional attention should be given to hospital nurses who provide care for trauma patients.

  5. MacBeth.

    Science.gov (United States)

    Krauskopf, Carl H., III

    This unit for 10th grade students on "Macbeth" is intended for college bound students. It was developed as a part of a series by the Public Education Religion Studies Center at Wright State University. In the seven-week unit, students examine the Elizabethan cultural background of Shakespeare's "Macbeth," including the political, social and…

  6. TL dating of the lowest paleolithic deposits of the Tabun Cave (Mt. Carmel, Israel); Datation par thermoluminescence de la base du gisement paleolithique de Tabun (mont Carmel, Israel)

    Energy Technology Data Exchange (ETDEWEB)

    Mercier, N.; Valladas, H.; Froget, L. [Centre National de la Recherche Scientifique (CNRS-CEA), Lab. des Sciences du CLimat et de l' Environnement, 91 - Gif-sur-Yvette (France); Joron, J.L. [Laboratoire Pierre Sue, LPS - CEA Saclay, 91 - Gif-sur-Yvette (France); Ronen, A. [Institut Zinman d' Archeologie, Universite Haifa (Israel)

    2000-05-01

    In this paper, we present new thermoluminescence dates for burntflints from the lowest archaeological deposits of Tabun Cave (Mt Carmel, Israel), which is often used as reference for all of Levant. We discuss the impact of these dates on the chrono-stratigraphy and show that the uplift of Mt Carmel (estimated at 10 cm.ka{sup -1}) might be responsible for some of the sedimentary collapses. (authors)

  7. Is the Bethe-Salpeter Formalism Accurate for Excitation Energies? Comparisons with TD-DFT, CASPT2, and EOM-CCSD.

    Science.gov (United States)

    Jacquemin, Denis; Duchemin, Ivan; Blase, Xavier

    2017-03-21

    Developing ab initio approaches able to provide accurate excited-state energies at a reasonable computational cost is one of the biggest challenges in theoretical chemistry. In that framework, the Bethe-Salpeter equation approach, combined with the GW exchange-correlation self-energy, which maintains the same scaling with system size as TD-DFT, has recently been the focus of a rapidly increasing number of applications in molecular chemistry. Using a recently proposed set encompassing excitation energies of many kinds [J. Phys. Chem. Lett. 2016, 7, 586-591], we investigate here the performances of BSE/GW. We compare these results to CASPT2, EOM-CCSD, and TD-DFT data and show that BSE/GW provides an accuracy comparable to the two wave function methods. It is particularly remarkable that the BSE/GW is equally efficient for valence, Rydberg, and charge-transfer excitations. In contrast, it provides a poor description of triplet excited states, for which EOM-CCSD and CASPT2 clearly outperform BSE/GW. This contribution therefore supports the use of the Bethe-Salpeter approach for spin-conserving transitions.

  8. Extrapolation of the Bethe equation for electron stopping powers to intermediate and low electron energies by empirical simulation of target effective mean excitation energy and atomic number

    Energy Technology Data Exchange (ETDEWEB)

    Maglevanny, I.I., E-mail: sianko@list.ru [Volgograd State Social Pedagogical University, 27 Lenin Avenue, Volgograd 400131 (Russian Federation); Smolar, V.A.; Nguyen, H.T.T. [Volgograd State Technical University, 28 Lenin Avenue, Volgograd 400131 (Russian Federation)

    2013-12-01

    A series of simple stopping power (SP) formulas, modified from the relativistic Bethe equation, is presented that is based on the concepts of target effective atomic number and mean excitation energy (MEE). The analytical model function is constructed to approximate experimental or calculated SPs at low electron energies and tend asymptotically to the relativistic Bethe function at high energies. The energy dependencies of our effective values, in contrast with theoretical approaches, are defined empirically by parametrization with tuning parameters. A least-squares fitting routine based on the Levenberg–Marquardt algorithm was developed. We utilize the material parameters and numerical calculations of SPs from optical data using the full Penn-algorithm. Our formula is thought to be applicable for energies above 60 eV. Our simulations of SPs for 41 elemental solids are found to be in good agreement with published numerical results. The flexibility of a general empirical formula is shown. Shortened formulas were developed that are applicable for particular energy ranges, and effective MEEs are proposed that differ from previously recommended values. The presented formulas may be used for analytical calculation of SPs over a broad projectile energy region.

  9. Radon signals at the Roded site, Southern Israel

    Science.gov (United States)

    Steinitz, G.; Piatibratova, O.

    2010-11-01

    Temporal variations of radon in the geological environment (upper crust) are frequent and recognized as unique in terms of the signals encountered and for the lack of substantial and generally applicable explanations. The phenomena observed at the Roded site, located in arid southern Israel, illustrate this situation. The monitoring of radon in the last 10 years or more has been carried out in massive meta-diorite of the Precambrian basement block of Roded. The measurement is conducted using an alpha detector at a resolution of 15-min, placed in a borehole at a depth of 9 m, within a PVC casing to that depth. Systematic temporal variation patterns, manifested as large relative signals are composed of sub-diurnal (SDR) radon, multi-day (MD) and annual (AR) signals. The overall variation is dominated by the intense SDR signals which occur in some days, and may vary from background levels (5 counts or less) to peak values (attaining >1000 counts) and back to background at an interval of 6 to 12 h. Intervals of up to several tens of days without significant SDR signals interchange with times of intense daily occurrences of such signals. Their occurrence indicates very fast variations of radiation from radon at the point of measurement. The peak times, within the diurnal 24-h cycle of SDR signals occur preferentially at an interval of 14-16 h (UT+2). Spectral analysis indicates: (a) A diurnal periodicity composed of a primary 24-h and a secondary 12-h periodicity, which are attributed to the solar tide constituents S1 and S2. Tidal constituents indicative for gravity tide (O1, M2) are lacking; (b) An annual periodicity. A compound relation among the diurnal and annual periodicity is indicated by: (a) Continuous Wavelet Transform (CWT) analysis shows an overall annual structure with a modulation of the S1 and S2 periodicities; (b) Moving-time-window Fourier spectral analysis showing that the amplitudes of S1 and S2 vary in an annual pattern, with relatively high values

  10. Israel Marine Bio-geographic Database (ISRAMAR-BIO)

    Science.gov (United States)

    Greengrass, Eyal; Krivenko, Yevgeniya; Ozer, Tal; Ben Yosef, Dafna; Tom, Moshe; Gertman, Isaac

    2015-04-01

    The knowledge of the space/time variations of species is the basis for any ecological investigations. While historical observations containing integral concentrations of biological parameters (chlorophyll, abundance, biomass…) are organized partly in ISRAMAR Cast Database, the taxon-specific data collected in Israel has not been sufficiently organized. This has been hindered by the lack of standards, variability of methods and complexity of biological data formalization. The ISRAMAR-BIO DB was developed to store various types of historical and future available information related to marine species observations and related metadata. Currently the DB allows to store biological data acquired by the following sampling devices such as: van veer grab, box corer, sampling bottles, nets (plankton, trawls and fish), quadrates, and cameras. The DB's logical unit is information regarding a specimen (taxa name, barcode, image), related attributes (abundance, size, age, contaminants…), habitat description, sampling device and method, time and space of sampling, responsible organization and scientist, source of information (cruise, project and publication). The following standardization of specimen and attributes naming were implemented: Taxonomy according to World Register of Marine Species (WoRMS: http://www.marinespecies.org). Habitat description according to Coastal and Marine Ecological Classification Standards (CMECS: http://www.cmecscatalog.org) Parameter name; Unit; Device name; Developmental stage; Institution name; Country name; Marine region according to SeaDataNet Vocabularies (http://www.seadatanet.org/Standards-Software/Common-Vocabularies). This system supports two types of data submission procedures, which support the above stated data structure. The first is a downloadable excel file with drop-down fields based on the ISRAMAR-BIO vocabularies. The file is filled and uploaded online by the data contributor. Alternatively, the same dataset can be assembled by

  11. Late-Life Benzodiazepine Use among Russian-Speaking Immigrants in Israel

    Science.gov (United States)

    Isralowitz, Richard; Reznik, Alex; Borkin, Sofia

    2006-01-01

    Purpose: In this prospective study, we examine the reasons for benzodiazepine use among Russian-speaking elderly people in Israel, and we discuss issues related to immigrants. We provide information that can be applied to the improvement of age-related health and social services. Design and Methods: During a 6-month period, we interviewed…

  12. The Arab Community in Israel Coping with Intellectual and Developmental Disability

    Directory of Open Access Journals (Sweden)

    Isack Kandel

    2004-01-01

    Full Text Available The Arab family in Israel is still embedded in the traditional society with extended family support systems, but we see a population in transition influenced by the surrounding society. This paper looks at the different religious attitudes toward the exceptional people in our society (i.e., the family reaction to a child born with intellectual or developmental disability, reviews recent studies on the Arab and Bedouin families in Israel, and presents data on the Arab population in residential care centers.Today, out of 57 residential care centers in Israel for persons with intellectual disability, 13 (22.8% are providing service to the non-Jewish population. The Arab population constitutes 12–13% of the total residential care population, lower than the 19–20% in the total population. In residential care, the Arab population is characterized by younger children with severe and profound intellectual disability. The informal family support system is still a very important factor in the Arab family in Israel, a fact that we believe should be strengthened by implementing the British and Danish model of nurse home visitation.

  13. Observations on web-invasion by the jumping spider Thyene imperialis in Israel (Araneae: Salticidae

    Directory of Open Access Journals (Sweden)

    Jäger, Peter

    2012-07-01

    Full Text Available Observations on Thyene imperialis (Rossi, 1846 in Israel, Negev desert, invading a web of Cyclosa deserticola Levy, 1998 are reported. The female leapt into the orb-web to catch Cyclosa spiders. Photographs are provided, and a link to additional film material is given.

  14. Work Alienation, Patterns of Substance Use and Country of Origin among Male Hospitality Workers in Israel

    Science.gov (United States)

    Isralowitz, Richard; Reznik, Alexander; Belhassen, Yaniv

    2012-01-01

    This prospective study examined the relationship between work alienation, country of origin and substance use among male hospitality workers in Israel. Results show work alienation more prevalent among Former Soviet Union origin males and those workers who binge drink and use cannabis (i.e., marijuana and/or hashish). Given the paucity of…

  15. Factors Affecting Accent Acquisition: The Case of Russian Immigrants in Israel

    Science.gov (United States)

    Abu-Rabia, Salim; Iliyan, Salman

    2011-01-01

    A debate centers on whether the native accent is acquired early in life or whether it can be acquired at any time. This study investigated factors that may affect native accent acquisition in a second language. Participants in this study were 50 Russians who immigrated to Israel, 17 males and 33 females. Their age on arrival was 5 to 25 years.…

  16. Turning Points in the Lives of Two Pioneer Arab Women Principals in Israel

    Science.gov (United States)

    Arar, Khalid Husny; Abu-Rabia-Queder, Sarab

    2011-01-01

    This study investigates the managerial career development of two Arab women, pioneer principals within the Arab education system in Israel. Using in-depth interviews relating to the characteristics of the different stages leading up to and within their careers as school principals (childhood and academic studies; the struggle to achieve the…

  17. Perspectives of Palestinian and Jewish Parents in Israel on Bilingual Education

    Science.gov (United States)

    Nasser, Ilham

    2011-01-01

    This article is based on a study conducted at the first Arabic and Hebrew bilingual school in Israel (Neve-Shalom/Wahat-Alsalam--NSWAS). The article focuses on Jewish as well as Palestinian parents' perspectives and responses to survey questions and interviews conducted at the school. Parents named reasons for choosing the school, satisfaction…

  18. When Shortage Coexists with Surplus of Teachers: The Case of Arab Teachers in Israel

    Science.gov (United States)

    Agbaria, Ayman K.; Pinson, Halleli

    2013-01-01

    This article explores the nexus between pre-service teacher education polices and the supply and demand of minority teachers. It problematizes the recent reports on teacher shortages in Israel, which tend to focus on the shortage of Jewish teachers while dealing with the surplus of Arab teachers only tangentially. Specifically, this article…

  19. Organizational Stress in the Role of the Elementary School Principal in Israel.

    Science.gov (United States)

    Erez, Miriam; Goldstein, Joseph

    1981-01-01

    Examines conflict and ambiguity in the pedagogical and administrative domains of principals' roles. Questionnaires completed by 65 elementary school principals in Israel and content analysis of formal education documents indicate that role stress forces principals to neglect pedagogical duties in favor of administrative duties. (Author/MLF)

  20. Attitudes and Beliefs Associated with Mammography in a Multiethnic Population in Israel

    Science.gov (United States)

    Baron-Epel, Orna

    2010-01-01

    This article highlights beliefs, attitudes, and barriers that are associated with mammography use in four distinct cultural and ethnic groups in Israel: veteran, ultra-orthodox, and immigrant Jewish and Arab women. A random telephone survey of 1,550 women was performed. Information from claims records concerning mammography use was obtained for…

  1. Intergenerational Transmission of Parenting Style among Jewish and Arab Mothers in Israel

    Science.gov (United States)

    Pasternak, Rachel

    2014-01-01

    Parental modeling of behavior has long been considered a major socialization process for children. In this piece, the author explores how parenting behavior is passed from one generation to the next, focusing on parenting styles among Jewish and Muslim mothers in Israel. The results indicate that young mothers tend to reproduce their parents'…

  2. Classroom Management and Teachers' Coping Strategies: Inside Classrooms in Australia, China and Israel

    Science.gov (United States)

    Romi, Shlomo; Lewis, Ramon; Roache, Joel

    2013-01-01

    This paper discusses the degree to which recently reported relationships between the classroom management techniques and coping styles of Australian teachers apply in two other national settings: China and Israel. Little is known about which teacher characteristics relate to their approach to classroom management, although researchers in Australia…

  3. Ethiopian Youth in Israel: Gender-Related Alcohol Use and Related Problem Behaviour

    Science.gov (United States)

    Isralowitz, Richard; Shpiegel, Svetlana; Reznik, Alex; Laytin, Adam

    2009-01-01

    Jewish people from Ethiopia have been immigrating to Israel since 1973. Difficulties with language, unemployment; low socioeconomic status and prejudice have been common place and linked to problem behaviour including school drop out, delinquency and drug abuse among Ethiopian youth. This research examines the patterns of alcohol use and related…

  4. Emigration for Higher Education: The Case of Palestinians Living in Israel Studying in Jordan

    Science.gov (United States)

    Arar, Khalid; Haj-Yehia, Kussai

    2010-01-01

    This study explored reasons for the rapid increase in the number of Palestinian Arabs from Israel (PAI) studying higher education (HE) in Jordan. Four hundred and sixty PAI studying in Jordan answered a questionnaire assessing factors related to HE in both countries. Lenient admission requirements and cultural-language similarity explain Jordan's…

  5. Vulnerability to Post-Traumatic Stress Disorder among Battered Women in Israel.

    Science.gov (United States)

    Arzy, Ronit; Amir, Marianne; Kotler, Moshe

    The increasing prevalence of domestic violence in Israel has engendered a critical need to identify and treat battered women. This paper looks at Posttraumatic Stress disorder (PTSD) and considers its predictors among battered women. The research sample was comprised of a sample of 91 battered women between the ages of 20 and 60 who applied to the…

  6. Labor Conflict on the National Stage: Metaphoric Lenses in Israel's Teachers' Strike

    Science.gov (United States)

    Shenkar, Miriam; Shenkar, Oded

    2011-01-01

    Teachers often embed their labor demands within a broader context to claim high moral ground and build community support. We analyze a recent teachers' strike in Israel, looking at how the strike played out in a country where the challenges of globalization collided with a socialist legacy in the face of an existential threat. The analysis reveals…

  7. Diversification and Inequality in Higher Education: A Comparison of Israel and the United States

    Science.gov (United States)

    Ayalon, Hanna; Grodsky, Eric; Gamoran, Adam; Yogev, Abraham

    2008-01-01

    This article explores how the structure of higher education in the United States and Israel mediates the relationship among race/ethnicity, social origins, and postsecondary outcomes. On the basis of differences in how the two systems of higher education have developed, the authors anticipated that inequality in college attendance will be greater…

  8. Sacralized Citizenship: Women Making Known Selves in an Islamic Teachers' College in Israel

    Science.gov (United States)

    Erdreich, Lauren

    2015-01-01

    Based on ethnographic fieldwork in an Islamic teachers' college in Israel and interviews with women lecturers, this article explores how the women combine education and religion to create a revitalized self and sense of belonging despite lived experiences of structural racial, national, and gender inequalities. The women's experience is…

  9. Improving access to essential health care services: The case of Israel

    NARCIS (Netherlands)

    W.P.M.M. van de Ven (Wynand)

    2016-01-01

    textabstractIn a recent article in this journal Simon-Tuval, Horev and Kaplan argue that in order to improve the protection of consumers there might be a need to impose a threshold on the medical loss ratio (MLR) for voluntary health insurance (VHI) in Israel [1]. Their argument is that VHI in Israe

  10. Self-medication with antibiotics by a population in northern Israel

    NARCIS (Netherlands)

    Raz, R; Edelstein, H; Grigoryan, L; Haaijer-Ruskamp, FM

    2005-01-01

    Background: The current study is part of a larger study - Self-Medication with Antibiotics and Resistance Levels in Europe (SAR project) - coordinated by the University of Groningen in the Netherlands and run in 19 European countries and Israel. Objectives: To estimate self-medication with antibioti

  11. Guest-Host Encounters in Diaspora-Heritage Tourism: The Taglit-Birthright Israel Mifgash (Encounter)

    Science.gov (United States)

    Sasson, Theodore; Mittelberg, David; Hecht, Shahar; Saxe, Leonard

    2011-01-01

    More than 300,000 diaspora Jewish young adults and tens of thousands of their Israeli peers have participated in structured, cross-cultural encounters--"mifgashim"--in the context of an experiential education program known as Taglit-Birthright Israel. Drawing on field observations, interviews, and surveys, the formal and informal…

  12. Between "Homeland" and "Diaspora": Multicultural Education in Israel and South Korea

    Science.gov (United States)

    Eden, Devorah; Kang, SoYoung

    2016-01-01

    The aim of this qualitative case study was to explore multicultural education for "newcomers" in Israel and in South Korea. Despite their differences, the two countries face the same inflow of two types of newcomers--one group that is expected to fully integrate, and the other of newcomers considered temporary. The educational challenge…

  13. Global Argonauts: Returnees and Diaspora as Sources of Innovation in China and Israel

    Science.gov (United States)

    Welch, Anthony; Hao, Jie

    2016-01-01

    The paper focuses on returnees and knowledge diaspora as important sources for human resources development, identifying push and pull factors that also contribute significantly to innovation. For both China and Israel, their high-skilled diaspora are a major policy priority: each has a substantial, high-skilled diaspora and policies and programmes…

  14. School Health Promotion Policies and Adolescent Risk Behaviors in Israel: A Multilevel Analysis

    Science.gov (United States)

    Tesler, Riki; Harel-Fisch, Yossi; Baron-Epel, Orna

    2016-01-01

    Background: Health promotion policies targeting risk-taking behaviors are being implemented across schools in Israel. This study identified the most effective components of these policies influencing cigarette smoking and alcohol consumption among adolescents. Methods: Logistic hierarchical linear model (HLM) analysis of data for 5279 students in…

  15. The Acculturation of Adult African Refugees Language Learners in Israel: An Ethnographic Study

    Science.gov (United States)

    Blake, Charles Carlos, III

    2012-01-01

    The number of refugees from Africa seeking asylum in Israel has recently skyrocketed, raising issues as to how to integrate them into Israeli society. Education is one of the mediums being used to encourage the cultural integration and inclusion of the refugees into Israeli society; very little is known, however, about how Africans are…

  16. 78 FR 25692 - Notice of Decision To Authorize the Importation of Fresh Barhi Dates From Israel

    Science.gov (United States)

    2013-05-02

    ... advising the public of our decision to add a treatment schedule for Ceratitis capitata in Barhi dates to... from Israel was treating the dates with cold treatment for Ceratitis capitata. Because no such cold... mitigation for C. capitata, and described a cold treatment schedule for C. capitata in Barhi dates that...

  17. Motivation to Provide Help to Older Parents in Norway, Spain, and Israel

    Science.gov (United States)

    Katz, Ruth; Gur-Yaish, Nurit; Lowenstein, Ariela

    2010-01-01

    We explore from a cross-national perspective three motivations in adult children to provide help to older parents: affectual solidarity, parental need for care, and filial norms. The sample is 1,055 adult children from Norway, Spain, and Israel, countries selected because they represent different family cultures and welfare regimes. Affectual…

  18. Bi-Lingual Newspaper as an Expression of a Fake Multicultural Educational Policy in Israel

    Science.gov (United States)

    Baratz, Lea; Reingold, Roni; Abuhatzira, Hannah

    2011-01-01

    The current paper analyzes a unique educational text that may be used to follow the educational policy of the State of Israel towards the community of Jewish immigrants from Ethiopia. The text which was analyzed was a bi-lingual newspaper called "Nugget News" which is published under the sponsorship of the Israeli Ministry of Education,…

  19. 19 CFR 102.22 - Rules of origin for textile and apparel products of Israel.

    Science.gov (United States)

    2010-04-01

    ... 19 Customs Duties 1 2010-04-01 2010-04-01 false Rules of origin for textile and apparel products... textile and apparel products of Israel. (a) Applicability. The provisions of this section will control for purposes of determining whether a textile or apparel product, as defined in § 102.21(b)(5), is considered...

  20. Si Israel aceptase refugiados sirios en los Altos del Golán

    OpenAIRE

    Plotner, Crystal

    2014-01-01

    ¿Podría la reapertura de los Altos del Golán a los sirios desplazados por el conflicto ser una opción beneficiosa para quienes huyen del conflicto sirio y para las relaciones de Israel con sus vecinos del noreste?