Culliton v. Beth Israel Deaconess Medical Center.
2001-01-01
Court Decision: 756 North Eastern Reporter, 2d Series 1133; 2001 Oct 12 (date of decision). The Supreme Judicial Court of Massachusetts ordered the defendant hospital to designate the plaintiffs as parents on the birth certificates of their genetic children, delivered at the defendant hospital by a gestational carrier. Steven and Marla Culliton entered into a gestational surrogacy agreement with Melissa Carroll to have embryos which were created by in vitro fertilization with the plaintiffs' own sperm and ova, implanted in the carrier. Before the children's births the plaintiffs requested a declaration of paternity and maternity and an order directing the hospital to enter the plaintiffs' names in the children's birth certificates. The Family Court dismissed the complaint, citing lack of authority to issue any prebirth order of parentage. On appeal, the Supreme Judicial Court held that the Family Court had the authority to consider the complaint because the plaintiffs were the only genetic sources of the children, and neither party contested the complaint. Because the children were born while the case was on appeal, the Supreme Judicial Court entered judgment for the plaintiffs and ordered that they be listed as the mother and father of the children on their birth records. The Supreme Judicial Court also held that the defendant hospital was still required to supply the state Department of Health with confidential information regarding the identity of the woman who delivered the children and "her prenatal health, labor and delivery, and postpartum care and condition" under the hospital's duties and responsibilities to report vital records information for research and public health purposes. PMID:17225347
Participatory management at Boston's Beth Israel Hospital.
Rabkin, M T; Avakian, L
1992-05-01
In the mid-1980s, the senior management of Boston's Beth Israel Hospital became concerned that continuous cost-cutting efforts could lower the quality of the hospital's services and the morale of its staff. This led them to investigate organizational approaches to "participatory management" to determine whether any of these might be of value to the hospital. They decided that an approach developed in the 1930s called the "Scanlon Plan" would be compatible with the workplace culture of Beth Israel, could help the hospital meet the ongoing problems of change, and could help the staff at all levels develop a sense that they owned the problems of quality, productivity, and efficiency, which would motivate them to address these problems constructively in the face of necessary budget constraints. This plan has two mechanisms to foster employees' positive participation: (1) a process to ensure that all members of the organization have the opportunity to improve productivity, primarily through an open suggestion system and a responsive committee structure, and (2) a means of providing equitable rewards for all members of the organization as productivity and quality improve. This essay describes in some detail the plan and why it was selected, explains how it was adapted, prepared for, and finally implemented in 1989, and reports its success, lessons learned, and future plans as of early 1992. The authors believe Beth Israel's experience with the Scanlon Plan is noteworthy as an example of a leading teaching hospital's taking a quality improvement program seriously and making it work. PMID:1575858
Burns, Risa B; Schonberg, Mara A; Tung, Nadine M; Libman, Howard
2016-08-01
In November 2013, the U.S. Preventive Services Task Force issued a guideline on medications for risk reduction of primary breast cancer in women. Although mammography can detect early cases, it cannot prevent development of breast cancer. Tamoxifen and raloxifene are selective estrogen receptor modulators that have been shown to reduce the risk for estrogen receptor-positive breast cancer and are approved by the U.S. Food and Drug Administration (FDA) for this indication. However, neither medication reduces the risk for estrogen receptor-negative breast cancer or all-cause mortality. The Task Force concluded that postmenopausal women with an estimated 5-year risk for breast cancer of 3% or greater will probably have more net benefit than harm and recommends that clinicians engage in shared, informed decision making about these medications. The American Society of Clinical Oncology issued a practice guideline on use of pharmacologic interventions for breast cancer in 2013. It recommends that women aged 35 years or older at increased risk, defined as a 5-year absolute risk for breast cancer of 1.66% or greater, discuss breast cancer prevention medications with their primary care practitioner. The Society includes the aromatase inhibitor exemestane in addition to tamoxifen and raloxifene as a breast cancer prevention medication, although exemestane is not FDA approved for this indication. Here, an oncologist and an internist discuss how they would balance these recommendations and what they would suggest for an individual patient. PMID:27479221
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.
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.
M. Gaudin; J.-S. Caux
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
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)
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...
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."
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...
2013-01-01
The main aim of this thesis is to explore how Ushirika wa Neema Deaconess Centre contributes to the empowerment of women in the ELCT-Northern Diocese and fosters gender awareness in the church and community. It also explores challenges which the deaconesses face in the Chagga patriarchal society. The collection of data was based mostly on semi-structured interviews. People were interviewed orally using some questions to guide the interviews. An interview schedule was prepared with a list ...
Instantaneous Bethe-Salpeter equation
International Nuclear Information System (INIS)
We present a systematic algebraic and numerical investigation of the instantaneous Beth-Salpeter equation. Emphasis is placed on confining interaction kernels of the Lorentz scalar, time component vector, and full vector-types. We explore the stability of the solutions and Regge behavior for each of these interactions, and conclude that only time component vector confinement leads to normal Regge structure and stable solutions for all quark masses
Hans Bethe and the Global Energy Problems
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.
An integrated model for inner-city health-care delivery: the Deaconess Center.
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.
Convexifying the Bethe Free Energy
Meshi, Ofer; Globerson, Amir; Friedman, Nir
2012-01-01
The introduction of loopy belief propagation (LBP) revitalized the application of graphical models in many domains. Many recent works present improvements on the basic LBP algorithm in an attempt to overcome convergence and local optima problems. Notable among these are convexified free energy approximations that lead to inference procedures with provable convergence and quality properties. However, empirically LBP still outperforms most of its convex variants in a variety of settings, as we also demonstrate here. Motivated by this fact we seek convexified free energies that directly approximate the Bethe free energy. We show that the proposed approximations compare favorably with state-of-the art convex free energy approximations.
Bethe vectors for XXX-spin chain
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.
International Nuclear Information System (INIS)
The first part of this book is a literary portrait of the great natural scientist. The book was the result of a number of personal meetings, telephone interviews and letters exchanged, which began in 1977 and lasted two years. Bethes work comprises so many aspects of modern physics and astrophysics that only a fat encyclopedia could do him justice. The author hopes to convey at least an idea of the tremendous scope of this work. But the main theme in the article in 'The New Yorker' and in the resulting book is a discussion about energy. The importance of the energy problem is such that it completely penetrates science and politics. Thus, the third chapter is concerned with energy-political options, the catastrophe of and radioactivity after Chernobyl, and the development of concepts of reactor safety. (orig./HSCH)
Botvin, J D
2001-01-01
Challenged by the requirements of managed care, Deaconess Billings Clinic resumed obstetrical services after 25 years. The resulting Family Birth Center is a "marketer's dream," with state-of-the-art facilities and an enviable model of care. The grand opening was highlighted by an open house, or "baby shower." The ongoing marketing campaign includes soft, sweet images of happy babies with their moms and dads. Memorable TV commercials emphasize the mother's comfort, the expertise of the medical staff, and the baby ... thoroughly enjoying the birth experience. PMID:11338363
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.
Bethe's quantum numbers and rigged configurations
Kirillov, Anatol N.; Sakamoto, Reiho
2016-01-01
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).
Supersymmetric vacua and Bethe ansatz
Nekrasov, Nikita A
2009-01-01
An announcement of some results of a longer paper where the supersymmetric vacua of two dimensional N=2 susy gauge theories with matter are shown to be in one-to-one correspondence with the eigenstates of integrable spin chain Hamiltonians. The Heisenberg spin chain is mapped to the two dimensional U(N) theory with fundamental hypermultiplets, the XXZ spin chain is mapped to the analogous three dimensional super-Yang-Mills theory compactified on a circle, the XYZ spin chain and eight-vertex model are related to the four dimensional theory compactified on a torus. The correspondence extends to any spin group, representations, boundary conditions, and inhomogeneity, it includes Sinh-Gordon and non-linear Schroedinger models as well as the dynamical spin chains such as the Hubbard model. Compactifications of four dimensional N=2 theories on a two-sphere lead to the instanton-corrected Bethe equations. We propose a completely novel way for the Yangian, quantum affine, and elliptic algebras to act as a symmetry of...
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.
Brueckner--Bethe calculations of nuclear matter
Energy Technology Data Exchange (ETDEWEB)
Day, B.D.
1978-01-01
The ideas of the Brueckner--Bethe hole-line expansion are briefly outlined. Four practical tests of its validity are formulated. These tests are applied to recent numerical results for the central potential v/sub 2/ and the semirealistic potential v/sub 6/ (Reid), which contains a tensor force but no spin-orbit force. The results are consistent with the validity of the hole-line expansion. The Brueckner--Bethe results are also consistent, within uncertainties of order 3 MeV, with variational results. 34 references.
Bethe vectors in GL(3)-based quantum integrable models
Pakuliak, S; Slavnov, N A
2015-01-01
We consider a composite generalized quantum integrable model solvable by the nested algebraic Bethe ansatz. Using explicit formulas of the action of the monodromy matrix elements onto Bethe vectors in the GL(3)-based quantum integrable models we prove a formula for the Bethe vectors of composite model. We show that this representation is a particular case of general coproduct property of the weight functions (Bethe vectors) found in the theory of the deformed Knizhnik--Zamolodchokov equation.
Bethe vectors of GL(3)-invariant integrable models
International Nuclear Information System (INIS)
We study GL(3)-invariant integrable models solvable by the nested algebraic Bethe ansatz. Different formulas are given for the Bethe vectors and the actions of the generators of the Yangian Y(gl3) on the Bethe vectors are considered. These actions are relevant for the calculation of correlation functions and form factors of local operators of the underlying quantum models. (paper)
Obituary: Hans Albrecht Bethe, 1906-2005
R. Wijers
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
Twisting singular solutions of Bethe's equations
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.
Obituary: Hans Albrecht Bethe, 1906-2005
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
Introduction to the thermodynamic Bethe ansatz
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 ...
Landau levels from the Bethe Ansatz equations
Hoshi, K.; Hatsugai, Y.
2000-01-01
The Bethe ansatz (BA) equations for the two-dimensional Bloch electrons in a uniform magnetic field are treated in the weak-field limit. We have calculated energies near the lower boundary of the energy spectrum up to the first nontrivial order. It corresponds to calculating a finite size correction for the excitation energies of the BA solvable lattice models and gives the Landau levels in the present problem.
Landau Levels from the Bethe Ansatz Equations
Hoshi, K.; Hatsugai, Y.
1999-01-01
The Bethe ansatz (BA) equations for the two-dimensional Bloch electrons in a uniform magnetic field are treated in the weak field limit. We have calculated energies near the lower boundary of the energy spectrum up to the first nontrivial order. It corresponds to calculating a finite size correction for the excitation energies of the BA solvable lattice models and gives the Landau levels in the present problem.
Introduction to the thermodynamic Bethe ansatz
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.
Introduction to the thermodynamic Bethe ansatz
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.
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.
Continuous representations of scalar products of Bethe vectors
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.
Overlaps of Partial Neel States and Bethe States
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.
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.
Norm of Bethe Wave Function as a Determinant
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.
Twisted Bethe equations from a twisted S-matrix
Ahn, Changrim; Bombardelli, Diego; Nepomechie, Rafael I
2010-01-01
All-loop asymptotic Bethe equations for a 3-parameter deformation of AdS5/CFT4 have been proposed by Beisert and Roiban. We propose a Drinfeld twist of the AdS5/CFT4 S-matrix, together with c-number diagonal twists of the boundary conditions, from which we derive these Bethe equations. Although the undeformed S-matrix factorizes into a product of two su(2|2) factors, the deformed S-matrix cannot be so factored. Diagonalization of the corresponding transfer matrix requires a generalization of the conventional algebraic Bethe ansatz approach, which we first illustrate for the simpler case of the twisted su(2) principal chiral model. We also demonstrate that the same twisted Bethe equations can alternatively be derived using instead untwisted S-matrices and boundary conditions with operatorial twists.
Modified Bethe-Weizsaecker mass formula for hypernuclei
International Nuclear Information System (INIS)
The Bethe-Weizsaecker mass formula originally designed to reproduce the gross features of nuclear binding energies for medium and heavy mass nuclei, fails for light nuclei especially away from the line of stability. To alleviate this problem a modified Bethe-Weizsaecker mass formula was suggested which explained the gross features of the binding energy versus neutron number curves of all the elements from Li to Bi
Bethe Ansatz for the Ruijsenaars Model of BC_1-Type
Directory of Open Access Journals (Sweden)
Oleg Chalykh
2007-02-01
Full Text Available We consider one-dimensional elliptic Ruijsenaars model of type $BC_1$. It is given by a three-term difference Schrödinger operator $L$ containing 8 coupling constants. We show that when all coupling constants are integers, $L$ has meromorphic eigenfunctions expressed by a variant of Bethe ansatz. This result generalizes the Bethe ansatz formulas known in the $A_1$-case.
Nuclear forces the making of the physicist Hans Bethe
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...
Directory of Open Access Journals (Sweden)
2007-12-01
Full Text Available 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 majority of Israeli wage earners (over 60percent earned less than $1,450 a month last year’ (Goldstein 2007, p. 1. In 2004 1.3 million Israelis lived below the poverty line, a number which in 2005 increased to more than 1.5 million Israelis. In spite of growing economic prosperity the proportion of families belonging to the working-poor, i.e. families with at least one family member in paid employment, increased from 11.4 percent in 2004 to 12.2 percent in 2005. The percentage of poor families in the working population increased from 40.6 percent to 43.1 percent. Nearly 60 percent of the ‘working-poor’ were working fulltime (Sinai 2006a, Shaoul 2006. 42 percent of Israeli Arab families are living below the poverty line. The average wages are less than half the wages of Ashkenazi Jews. Every second Israeli Arab child lives in poverty. When in 1996 to 2001 the unemployment rate of the Jewish Israelis increased by about 53 percent, the unemployment rate of the Arab Israelis increased by 126 percent (cf. Shaoul 2006. 80 percent of Israelis regard themselves as poor. 23 percent of the pensioners are living below the poverty line. Poverty among children increased in 1988 to 2005 by about 50 percent. Approximately one fifth of all under-age children (714.000 in Israel are suffering from hunger (cf. Shaoul 2006. 75 percent of the poor families cannot afford medicine and 70 percent are dependant on food donations (cf. Sinai 2005b. Nearly one third of the
On The Ladder Bethe-Salpeter Equation
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...
Weinrauch, Larry
2009-01-01
John A D’Elia, Bijan Roshan, Manish Maski, Larry A WeinrauchJoslin Diabetes Center, Renal Unit, Beth Israel Deaconess Medical Center, Department of Medicine, Mount Auburn Hospital, Harvard Medical School, Boston and Cambridge, MassachusettsAbstract: Albuminuria in individuals whose body mass index exceeds 40 kg/m2 is associated with the presence of large glomeruli, thickened basement membrane and epithelial cellular (podocyte) distortion. Obstructive sleep apnea magnifies glomerular...
Detailed analysis of allergic cutaneous reactions to spinal cord stimulator devices
Chaudhry ZA; Najib U; Bajwa ZH; Jacobs WC; Sheikh J; Simopoulos TT
2013-01-01
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, U...
B cell receptor pathway in chronic lymphocytic leukemia: specific role of CC-292
Arnason JE; Brown JR
2014-01-01
Jon E Arnason,1 Jennifer R Brown21Beth Israel Deaconess Medical Center, 2CLL Center, Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, USAAbstract: Chronic lymphocytic leukemia (CLL) is the most common adult leukemia. The current treatment paradigm involves the use of chemoimmunotherapy, when patients develop an indication for therapy. With this strategy, a majority of patients will obtain a remission, though cure remains elusive. While treatabl...
Postoperative pulmonary embolism in a three year old with Klippel–Trenaunay syndrome
Jana Hudcova; Monica Kleinman; Daniel Talmor
2009-01-01
Jana Hudcova1, Monica Kleinman2, Daniel Talmor11Department of Anesthesia, Critical Care and Pain Medicine, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, USA; 2Department of Anesthesia, Division of Critical Care Medicine, Children’s Hospital Boston and Harvard Medical School, Boston, MA, USAAbstract: Massive pulmonary embolism (PE) in a small child is a rare event and unified guidelines for its treatment are missing. Timely diagnosis and management of m...
Prostanoid therapies in the management of pulmonary arterial hypertension
LeVarge, Barbara
2015-01-01
Barbara L LeVarge Department of Pulmonary and Critical Care Medicine, Beth Israel Deaconess Medical Center, Boston, MA, USA Abstract: Prostacyclin is an endogenous eicosanoid produced by endothelial cells; through actions on vascular smooth-muscle cells, it promotes vasodilation. Pulmonary arterial hypertension (PAH) is characterized by elevated mean pulmonary artery pressure due to a high pulmonary vascular resistance state. A relative decrease in prostacyclin presence has been associated ...
Rosen, Bruce; Waitzberg, Ruth; Merkur, Sherry
2015-12-01
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
Burstein, Chaya M.
This book examines the history, customs, language, crafts, recipes, geography, and music of Israel. Written in a format that appeals to juvenile readers, the book contains stories, facts, legends, photographs, maps, and illustrations to enhance the text. The 17 chapters include: (1) "All Around Israel"; (2) "A Mishmash of People": (3) "Kids in…
International Nuclear Information System (INIS)
The state of Israel has been a pioneer in the solar energy development and utilization since it was founded. In the 50's solar domestic home heaters became commercially available. At the same time research work has been started in different areas of solar energy, which led to more advanced solar systems for additional applications. The presentation includes some details of commercial utilization of solar energy and a brief description of the main Research and Development projects in industry, universities and research institutes. (authors)
Selected Works Of Hans A Bethe (With Commentary)
International Nuclear Information System (INIS)
Hans A Bethe received the Nobel Prize for Physics in 1967 for his work on the production of energy in stars. A living legend among the physics community, he helped to shape classical physics into quantum physics and increased the understanding of the atomic processes responsible for the properties of matter and of the forces governing the structures of atomic nuclei. This collection of papers by Prof Bethe dates from 1928, when he received his PhD, to now. It covers several areas and reflects the many contributions in research and discovery made by one of the most important and eminent physicists of all time. Special commentaries have been written by Prof Bethe to complement the selected papers
Constrained variational results for the new Bethe homework problem
International Nuclear Information System (INIS)
Bethe has proposed two model N-N interactions, one containing a central plus sigma1.sigma2 spin dependence and the other containing in addition a tensor force, to study the convergence of various many-body techniques for calculating the bulk properties of many fermion fluids. Following the success of using constrained variational calculations in describing the behaviour of the original Bethe homework problem involving a purely central interaction, results in neutron matter and nuclear matter for the new spin-dependent potentials, are here presented. (author)
Nested Bethe ansatz for "all" closed spin chains
Belliard, S.; Ragoucy, E.
2008-01-01
We present in an unified and detailed way the Nested Bethe Ansatz for closed spin chains based on Y(gl(n)), Y(gl(m|n)), U_q(gl(n)) or U_q(gl(m|n)) (super)algebras, with arbitrary representations (i.e. `spins') on each site of the chain. In particular, the case of indecomposable representations of superalgebras is studied. The construction extends and unifies the results already obtained for spin chains based on Y(gl(n)) or U_q(gl(n)) and for some particular super-spin chains. We give the Beth...
Analytic Bethe-Salpeter description of the lightest pseudoscalar mesons
Lucha, Wolfgang; Schöberl, Franz F.
2016-03-01
Within the Bethe-Salpeter formalism for instantaneous interactions, we describe, along a totally analytic route, the lightest pseudoscalar mesons by quark-antiquark bound states which show at least three indispensable general features—namely, the (almost) masslessness required for pions and kaons to be interpretable as (pseudo-)Goldstone bosons, the suitable asymptotic behavior in the limit of large spacelike relative momenta as determined by the relationship between quark mass function and Bethe-Salpeter amplitudes, and a pointwise behavior for finite spacelike relative momenta suited for guaranteeing color confinement.
Improved Numerical Generalization of Bethe- Weizsacker Mass Formula
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.
Evaluations of energy coefficients of Bethe-Weizsacker mass formula
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.
Energy Technology Data Exchange (ETDEWEB)
Bracken, Anthony J.; Ge Xiangyu; Gould, Mark D.; Links, Jon; Zhou Huanqiang [Centre for Mathematical Physics, University of Queensland, Brisbane, QLD (Australia)
2001-06-01
Integrable extended Hubbard models arising from symmetric group solutions are examined in the framework of the graded quantum inverse scattering method. The Bethe ansatz equations for all these models are derived by using the algebraic Bethe ansatz method. (author)
International Nuclear Information System (INIS)
For the first time this report includes a chapter entitles 'energy and peace'. Following is an overview of israel's energy economy and some principal initiatives in its various sectors during 1992/93 period. 46 figs, 13 tabs
Bethe States of the integrable spin-s chain with generic open boundaries
Yang, Lijun; Cao, Junpeng; Yang, Wen-Li; Shi, Kangjie; Wang, Yupeng
2015-01-01
Based on the inhomogeneous T-Q relation and the associated Bethe Ansatz equations obtained via the off-diagonal Bethe Ansatz, we construct the Bethe-type eigenstates of the SU(2)-invariant spin-s chain with generic non-diagonal boundaries by employing certain orthogonal basis of the Hilbert space.
Algebraic Bethe Ansatz for O(2N) sigma models with integrable diagonal boundaries
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.
Characters in Conformal Field Theories from Thermodynamic Bethe Ansatz
Kuniba, A.; Nakanishi, T; Suzuki, J.
1993-01-01
We propose a new $q$-series formula for a character of parafermion conformal field theories associated to arbitrary non-twisted affine Lie algebra $\\widehat{g}$. We show its natural origin from a thermodynamic Bethe ansatz analysis including chemical potentials.
On the algebraic Bethe ansatz: Periodic boundary conditions
Lima-Santos, A.
2006-01-01
In this paper, the algebraic Bethe ansatz with periodic boundary conditions is used to investigate trigonometric vertex models associated with the fundamental representations of the non-exceptional Lie algebras. This formulation allow us to present explicit expressions for the eigenvectors and eigenvalues of the respective transfer matrices.
Pionierin der Religionspsychologie: Marianne Beth (1890-1984)
J.A. Belzen
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
Algebraic Bethe ansatz for the XXX chain with triangular boundaries and Gaudin model
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.
Civic and Citizenship Education in Israel.
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)
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.
Bethe-Salpeter bound-state structure in Minkowski space
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.
Bethe-Salpeter bound-state structure in Minkowski space
Gutierrez, C.; Gigante, V.; Frederico, T.; Salmè, G.; Viviani, M.; Tomio, Lauro
2016-08-01
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.
Covariant Bethe-Salpeter wave functions for heavy hadrons
International Nuclear Information System (INIS)
In recent years the dynamics of heavy mesons and baryons has considerably simplified by the development of the so-called heavy quark effective theory (HQET). A covariant formulation of heavy meson and heavy baryon decays in the leading order of the HQET is presented. The method is based on a Bethe-Salpeter formulation in the limit of the heavy quark mass going to infinity. 15 refs, 4 figs
On the Bethe approximation to the reactance matrix
International Nuclear Information System (INIS)
The Bethe approximation to the reactance matrix is considered for electron-neutral-atom collisions. Analytic expressions are given for the matrix elements. For the special case of electron-neutral-atom scattering the sum rules of Burgess are simplified. Particular consideration is given to the problem of calculating cross sections for dipole transitions. Partial cross sections are presented for all non-exact resonance dipole transitions between hydrogen atom states, with n, n' = 11, 31, 51, 71, 91. (author)
Bethe-Peierls approximation and the inverse Ising model
Nguyen, H. Chau; Berg, Johannes
2011-01-01
We apply the Bethe-Peierls approximation to the problem of the inverse Ising model and show how the linear response relation leads to a simple method to reconstruct couplings and fields of the Ising model. This reconstruction is exact on tree graphs, yet its computational expense is comparable to other mean-field methods. We compare the performance of this method to the independent-pair, naive mean- field, Thouless-Anderson-Palmer approximations, the Sessak-Monasson expansion, and susceptibil...
How algebraic Bethe ansatz works for integrable model
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.
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.
Linking Chains Together: String Bits And The Bethe Ansatz
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...
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.
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.
Bethe states for the two-site Bose-Hubbard model: a binomial approach
Santos, Gilberto; Foerster, Angela; Roditi, Itzhak
2015-01-01
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.
Algebraic Bethe ansatz for the XXX chain with triangular boundaries and Gaudin model
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.
π- and K-meson Bethe-Salpeter amplitudes
International Nuclear Information System (INIS)
Independent of assumptions about the form of the quark-quark scattering kernel K, we derive the explicit relation between the flavor-nonsinglet pseudoscalar-meson Bethe-Salpeter amplitude ΓH and the dressed-quark propagator in the chiral limit. In addition to a term proportional to γ5, ΓH necessarily contains qualitatively and quantitatively important terms proportional to γ5γ·P and γ5γ·kk·P, where P is the total momentum of the bound state. The axial-vector vertex contains a bound state pole described by ΓH, whose residue is the leptonic decay constant for the bound state. The pseudoscalar vertex also contains such a bound state pole and, in the chiral limit, the residue of this pole is related to the vacuum quark condensate. The axial-vector Ward-Takahashi identity relates these pole residues, with the Gell-Mann endash Oakes endash Renner relation a corollary of this identity. The dominant ultraviolet asymptotic behavior of the scalar functions in the meson Bethe-Salpeter amplitude is fully determined by the behavior of the chiral limit quark mass function, and is characteristic of the QCD renormalization group. The rainbow-ladder Ansatz for K, with a simple model for the dressed-quark-quark interaction, is used to illustrate and elucidate these general results. The model preserves the one-loop renormalization group structure of QCD. The numerical studies also provide a means of exploring procedures for solving the Bethe-Salpeter equation without a three-dimensional reduction. copyright 1997 The American Physical Society
Physics over easy Breakfasts with Beth and physics
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
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.
Relaxation of Evolutionary Dynamics on the Bethe Lattice
Institute of Scientific and Technical Information of China (English)
TIAN Liang; LIN Min
2012-01-01
Realistic evolutionary systems are generally structured and are in infinite dimensions.We study the relaxation behavior of evolutionary dynamics on a Bethe lattice,which concerns the invasion of mutants into a population of wild-type individuals.Since the boundary effect plays a significant role in a finite system,with proper approximation we propose an effective method to characterize the evolutionary dynamics.The relaxation behavior of the invasion process is analytically investigated,which is confirmed by extensive simulations.This work is the first systematical investigation on evolutionary dynamics in an infinitely dimensional lattice.
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.
Tetraquark bound states in a Bethe-Salpeter approach
Heupel, Walter; Eichmann, Gernot; Fischer, Christian S.
2012-01-01
We determine the mass of tetraquark bound states from a coupled system of covariant Bethe-Salpeter equations. Similar in spirit to the quark-diquark model of the nucleon, we approximate the full four-body equation for the tetraquark by a coupled set of two-body equations with meson and diquark constituents. These are calculated from their quark and gluon substructure using a phenomenologically well-established quark-gluon interaction. For the lightest scalar tetraquark we find a mass of the o...
Spectra of heavy mesons in the Bethe-Salpeter approach
Energy Technology Data Exchange (ETDEWEB)
Fischer, Christian S.; Kubrak, Stanislav; Williams, Richard [Justus-Liebig-Universitaet Giessen, Institut fuer Theoretische Physik, Giessen (Germany)
2015-01-01
We present a calculation of the spectrum of charmonia, bottomonia and B{sub c}-meson states with ''ordinary'' and exotic quantum numbers. We discuss the merits and limitations of a rainbow-ladder truncation of Dyson-Schwinger and Bethe-Salpeter equations and explore the effects of different shapes of the effective running coupling on ground and excited states in channels with quantum numbers J ≤ 3. We furthermore discuss the status of the X(3872) as a potential (excited) quark-antiquark state and give predictions for the masses of charmonia and bottomonia in the tensor channels with J= 2, 3. (orig.)
$\\pi$ and K-meson Bethe-Salpeter Amplitudes
Maris, P
1997-01-01
Independent of assumptions about the form of the quark-quark scattering kernel, K, we derive the explicit relation between the flavour-nonsinglet pseudoscalar meson Bethe-Salpeter amplitude, Gamma_H, and the dressed-quark propagator in the chiral limit. In addition to a term proportional to gamma_5, Gamma_H necessarily contains qualitatively and quantitatively important terms proportional to gamma_5 gamma.P and gamma_5 gamma.k k.P, where P is the total momentum of the bound state. The axial-vector vertex contains a bound state pole described by Gamma_H, whose residue is the leptonic decay constant for the bound state. The pseudoscalar vertex also contains such a bound state pole and, in the chiral limit, the residue of this pole is related to the vacuum quark condensate. The axial-vector Ward-Takahashi identity relates these pole residues; with the Gell-Mann--Oakes--Renner relation a corollary of this identity. The dominant ultraviolet asymptotic behaviour of the scalar functions in the meson Bethe-Salpeter a...
Correlation functions of the spin chains. Algebraic Bethe Ansatz approach
International Nuclear Information System (INIS)
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.)
Algebraic Bethe ansatz for the Temperley-Lieb spin-1 chain
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.
In Defense of Today's Struggling Reader: What Policymakers Can Learn from Beth
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…
Bethe ansatz matrix elements as non-relativistic limits of form factors of quantum field theory
M. Kormos; G. Mussardo; B. Pozsgay
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
Algebraic Bethe ansatz for the Temperley-Lieb spin-1 chain
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.
Analytical Bethe ansatz for the open AdS/CFT SU(1|1) spin chain
Nepomechie, Rafael I
2008-01-01
We prove an inversion identity for the open AdS/CFT SU(1|1) quantum spin chain which is exact for finite size. We use this identity, together with an analytic ansatz, to determine the eigenvalues of the transfer matrix and the corresponding Bethe ansatz equations. We also solve the closed chain by algebraic Bethe ansatz.
Off-diagonal Bethe ansatz solution of the XXX spin-chain with arbitrary boundary conditions
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.
Off-diagonal Bethe ansatz solution of the XXX spin chain with arbitrary boundary conditions
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.
Israel debates raising commitment to CERN
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).
Formal and Applied Counseling in Israel
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…
Always the victim : Israel's present wars
Reinhart, T.
2006-01-01
In the Israeli discourse, Israel has always been the innocent victim of vicious aggression from its neighbors. This perception of reality has only intensified with its two recent wars - against the Palestinians in Gaza and against Lebanon. On this view, in both cases Israel has manifested its good w
Israel Geological Society, annual meeting 1994
International Nuclear Information System (INIS)
The document is a compilation of papers presented during the annual meeting of Israel Geological Society. The document is related with geological and environmental survey of Israel. It discusses the technology and instruments used to carry out such studies. Main emphasis is given to seismology, geochemical analysis of water, water pollution and geophysical survey of rocks
Greater Israel? Moral and Political Questions.
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)
A Weizsacker-Bethe type mass formula for hypernuclei
International Nuclear Information System (INIS)
Theoretical estimates of hypernuclear binding energies are generally much larger than the empirical value and the disagreement is rather marked for the binding energy of sub(Λ)5He. Here we try to explain the so-called over-binding problem by way of introducing a Weizsacker-Bethe type mass formula used for ordinary nuclei. Using the most recent data on binding energies of hypernuclei, parameters of the hypernuclear mass formula are estimated by fitting a least-square curve as is the usual practice in nuclear physics. Theoretical predictions for hypernuclear binding energies are then made by using the formula as obtained above and results compared with experimental values. Agreement with experiment is found to be rather good and in particular the result obtained for sub(Λ)5He, although slightly larger than the observed value, has shown significant improvement over earlier estimates. (author)
Twist-three at five loops, Bethe ansatz and wrapping
Beccaria, Matteo; Forini, Valentina; Łukowski, Tomasz; Zieme, Stefan
2009-03-01
We present a formula for the five-loop anomalous dimension of Script N = 4 SYM twist-three operators in the fraktur sfraktur l(2) sector. We obtain its asymptotic part from the Bethe Ansatz and finite volume corrections from the generalized Lüscher 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 (log2M/M2) for large values of the spin.
Tetra quark bound states in a Bethe-Salpeter approach
Energy Technology Data Exchange (ETDEWEB)
Heupel, Walter; Eichmann, Gernot [Institut fuer Theoretische Physik, Justus-Liebig-Universitaet Giessen, D-35392 Giessen (Germany); Fischer, Christian S., E-mail: christian.fischer@theo.physik.uni-giessen.de [Institut fuer Theoretische Physik, Justus-Liebig-Universitaet Giessen, D-35392 Giessen (Germany); GSI Helmholtzzentrum fuer Schwerionenforschung GmbH, Planckstr. 1, D-64291 Darmstadt (Germany)
2012-12-05
We determine the mass of tetraquark bound states from a coupled system of covariant Bethe-Salpeter equations. Similar in spirit to the quark-diquark model of the nucleon, we approximate the full four-body equation for the tetraquark by a coupled set of two-body equations with meson and diquark constituents. These are calculated from their quark and gluon substructure using a phenomenologically well-established quark-gluon interaction. For the lightest scalar tetraquark we find a mass of the order of 400 MeV and a wave function dominated by the pion-pion constituents. Both results are in agreement with a meson molecule picture for the f{sub 0}(600). Our results furthermore suggest the presence of a potentially narrow all-charm tetraquark in the mass region 5-6 GeV.
Tetraquark bound states in a Bethe-Salpeter approach
Heupel, Walter; Fischer, Christian S
2012-01-01
We determine the mass of tetraquark bound states from a coupled system of covariant Bethe-Salpeter equations. Similar in spirit to the quark-diquark model of the nucleon, we approximate the full four-body equation for the tetraquark by a coupled set of two-body equations with meson and diquark constituents. These are calculated from their quark and gluon substructure using a phenomenologically well-established quark-gluon interaction. For the lightest scalar tetraquark we find a mass of the order of 400 MeV and a wave function dominated by the pion-pion constituents. Both results are in agreement with a meson molecule picture for the f_0(600). Our results furthermore suggest the presence of a potentially narrow all-charm tetraquark in the mass region 5-6 GeV.
Tetraquark bound states in a Bethe-Salpeter approach
Heupel, Walter; Eichmann, Gernot; Fischer, Christian S.
2012-12-01
We determine the mass of tetraquark bound states from a coupled system of covariant Bethe-Salpeter equations. Similar in spirit to the quark-diquark model of the nucleon, we approximate the full four-body equation for the tetraquark by a coupled set of two-body equations with meson and diquark constituents. These are calculated from their quark and gluon substructure using a phenomenologically well-established quark-gluon interaction. For the lightest scalar tetraquark we find a mass of the order of 400 MeV and a wave function dominated by the pion-pion constituents. Both results are in agreement with a meson molecule picture for the f0 (600). Our results furthermore suggest the presence of a potentially narrow all-charm tetraquark in the mass region 5-6 GeV.
Potts models with invisible states on general Bethe lattices
International Nuclear Information System (INIS)
The number of so-called invisible states which need to be added to the q-state Potts model to transmute its phase transition from continuous to first order has attracted recent attention. In the q = 2 case, a Bragg–Williams (mean-field) approach necessitates four such invisible states while a 3-regular random graph formalism requires seventeen. In both of these cases, the changeover from second- to first-order behaviour induced by the invisible states is identified through the tricritical point of an equivalent Blume–Emery–Griffiths model. Here we investigate the generalized Potts model on a Bethe lattice with z neighbours. We show that, in the q = 2 case, invisible states are required to manifest the equivalent Blume–Emery–Griffiths tricriticality. When z = 3, the 3-regular random graph result is recovered, while z → ∞ delivers the Bragg–Williams (mean-field) result. (paper)
Critical phenomena in one dimension from a Bethe ansatz perspective
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.
Modified binary encounter Bethe model for electron-impact ionization
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.
Excited charmonium states from Bethe-Salpeter equation
Sauli, Vladimir
2011-01-01
We solve the Bethe-Salpeter equation for a system of a heavy quark-antiquark pair interacting with a screened linear confining potential. First we show the spinless QFT model is inadequate and fail to describe even gross feature of the quarkonia spectrum. In order to get reliable description the spine degrees of freedom has to be considered. Within the approximation employed we reasonably reproduce known radial excitation of vector charmonium. The BSE favors relatively large string breaking scale $\\mu\\simeq 350MeV$ . Using free charm quark propagators we observe that $J/\\Psi$ is the only charmonium left bellow naive quark-antiquark threshold $2m_c$, while the all excited states are situated above this threshold. Within the numerical method we overcome obstacles related with threshold singularity and discuss the consequences of the use of free propagators for calculation of excited states above the threshold.
Twist-three at five loops, Bethe Ansatz and wrapping
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.
Energy Technology Data Exchange (ETDEWEB)
Basso, Benjamin, E-mail: bbasso@perimeterinstitute.ca [Perimeter Institute for Theoretical Physics, Waterloo, Ontario N2L 2Y5 (Canada); Rej, Adam, E-mail: arej@ias.edu [School of Natural Sciences, Institute for Advanced Study, Princeton, NJ 08540 (United States)
2014-02-15
Studying the scattering of excitations around a dynamical background has a long history in the context of integrable models. The Gubser–Klebanov–Polyakov string solution provides such a background for the string/gauge correspondence. Taking the conjectured all-loop asymptotic equations for the AdS{sub 4}/CFT{sub 3} correspondence as the starting point, we derive the S-matrix and a set of spectral equations for the lowest-lying excitations. We find that these equations resemble closely the analogous equations for AdS{sub 5}/CFT{sub 4}, which are also discussed in this paper. At large values of the coupling constant we show that they reproduce the Bethe equations proposed to describe the spectrum of the low-energy limit of the AdS{sub 4}×CP{sup 3} sigma model.
Universal Bethe ansatz solution for the Temperley–Lieb spin chain
Directory of Open Access Journals (Sweden)
Rafael I. Nepomechie
2016-09-01
Full Text Available 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.
Universal Bethe ansatz solution for the Temperley-Lieb spin chain
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.
Universal Bethe ansatz solution for the Temperley-Lieb spin chain
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...
Hofstadter problem on the honeycomb and triangular lattices: Bethe ansatz solution
Kohmoto, M.; Sedrakyan, A.
2006-06-01
We consider Bloch electrons on the honeycomb lattice under a uniform magnetic field with 2πp/q flux per cell. It is shown that the problem factorizes to two triangular lattices. Treating magnetic translations as a Heisenberg-Weyl group and by the use of its irreducible representation on the space of theta functions, we find a nested set of Bethe equations, which determine the eigenstates and energy spectrum. The Bethe equations have simple form which allows us to consider them further in the limit p,q→∞ by the technique of thermodynamic Bethe ansatz and analyze the Hofstadter problem for the irrational flux.
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.
Heisenberg XXX Model with General Boundaries: Eigenvectors from Algebraic Bethe Ansatz
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.
Heisenberg XXX model with general boundaries: Eigenvectors from Algebraic Bethe ansatz
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.
Algebraic Bethe ansatz for the sl(2) Gaudin model with boundary
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.
Bethe vectors for models based on the super-Yangian $Y(\\mathfrak{gl}(m|n))$
Pakuliak, S Z; Slavnov, N A
2016-01-01
We study Bethe vectors of integrable models based on the super-Yangian $Y(\\mathfrak{gl}(m|n))$. Starting from the super-trace formula, we exhibit recursion relations for these vectors in the case of $Y(\\mathfrak{gl}(2|1))$ and $Y(\\mathfrak{gl}(1|2))$. These recursion relations allow to get explicit expressions for the Bethe vectors. Using an antimorphism of the super-Yangian $Y(\\mathfrak{gl}(m|n))$, we also construct a super-trace formula for dual Bethe vectors, and, for $Y(\\mathfrak{gl}(2|1))$ and $Y(\\mathfrak{gl}(1|2))$ super-Yangians, show recursion relations for them. Again, the latter allow us to get explicit expressions for dual Bethe vectors.
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.
Janus-Facedness of the Pion: Analytic Instantaneous Bethe-Salpeter Models
Lucha, Wolfgang
2016-01-01
Inversion enables the construction of interaction potentials underlying - under fortunate circumstances even analytic - instantaneous Bethe-Salpeter descriptions of all lightest pseudoscalar mesons as quark-antiquark bound states of Goldstone-boson nature.
Algebraic Bethe ansatz for the two species ASEP with different hopping rates
Energy Technology Data Exchange (ETDEWEB)
Cantini, Luigi [Universite Paris-Sud, LPTMS, UMR8626, Bat. 100, Universite Paris-Sud 91405, Orsay Cedex (France); CNRS, LPTMS, UMR8626, Bat. 100, Universite Paris-Sud 91405, Orsay Cedex (France)
2008-03-07
An ASEP with two species of particles and different hopping rates is considered on a ring. Its integrability is proved, and the nested algebraic Bethe ansatz is used to derive the Bethe equations for states with arbitrary numbers of particles of each type, generalizing the results of Derrida and Evans. We also present formulae for the total velocity of particles of a given type and their limit given the large size of the system and the finite densities of the particles.
Bethe vectors of quantum integrable models based on Uq( gl-hat N)
International Nuclear Information System (INIS)
We study quantum Uq( gl-hat N) integrable models solvable by the nested algebraic Bethe ansatz. Different formulas are given for the right and left universal off-shell nested Bethe vectors. It is shown that these formulas can be related by certain morphisms of the positive Borel subalgebra in Uq( gl-hat N) into analogous subalgebra in Uq−1( gl-hat N). (paper)
Approximate, analytic solutions of the Bethe equation for charged particle range
Swift, Damian C.; McNaney, James M.
2009-01-01
By either performing a Taylor expansion or making a polynomial approximation, the Bethe equation for charged particle stopping power in matter can be integrated analytically to obtain the range of charged particles in the continuous deceleration approximation. Ranges match reference data to the expected accuracy of the Bethe model. In the non-relativistic limit, the energy deposition rate was also found analytically. The analytic relations can be used to complement and validate numerical solu...
Spin-1/2 XYZ model revisit: General solutions via off-diagonal Bethe ansatz
Energy Technology Data Exchange (ETDEWEB)
Cao, Junpeng [Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190 (China); Collaborative Innovation Center of Quantum Matter, Beijing (China); Cui, Shuai [Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190 (China); Yang, Wen-Li, E-mail: wlyang@nwu.edu.cn [Institute of Modern Physics, Northwest University, Xian 710069 (China); Beijing Center for Mathematics and Information Interdisciplinary Sciences, Beijing 100048 (China); Shi, Kangjie [Institute of Modern Physics, Northwest University, Xian 710069 (China); Wang, Yupeng, E-mail: yupeng@iphy.ac.cn [Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190 (China); Collaborative Innovation Center of Quantum Matter, Beijing (China)
2014-09-15
The spin-1/2 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.
Explicit Solutions of the Bethe Ansatz Equations for Bloch Electrons in a Magnetic Field
Hatsugai, Yasuhiro; Kohmoto, Mahito; Wu, Yong-Shi
1994-01-01
For Bloch electrons in a magnetic field, explicit solutions are obtained at the center of the spectrum for the Bethe ansatz equations of Wiegmann and Zabrodin. When the magnetic flux per plaquette is 1 / Q with Q an odd integer, distribution of the roots of the Bethe ansatz equation is uniform except at two points on the unit circle in the complex plane. For the semiclassical limit Q→∞, the wave function is
Bethe ansatz solution of the $\\tau_2$-model with arbitrary boundary fields
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.
Israel, CERN’s new Member State
Brice, Maximilien
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.
Hyperon stars in the Brueckner-Bethe-Goldstone theory
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 ...
A systematic approach to sketch Bethe-Salpeter equation
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...
Efficient implementation of core-excitation Bethe Salpeter equation calculations
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...
N=6 super Chern-Simons theory S-matrix and all-loop Bethe ansatz equations
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.
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.
Use of the Bethe equation for inner-shell ionization by electron impact
Powell, Cedric J.; Llovet, Xavier; Salvat, Francesc
2016-05-01
We analyzed calculated cross sections for K-, L-, and M-shell ionization by electron impact to determine the energy ranges over which these cross sections are consistent with the Bethe equation for inner-shell ionization. Our analysis was performed with K-shell ionization cross sections for 26 elements, with L-shell ionization cross sections for seven elements, L3-subshell ionization cross sections for Xe, and M-shell ionization cross sections for three elements. The validity (or otherwise) of the Bethe equation could be checked with Fano plots based on a linearized form of the Bethe equation. Our Fano plots, which display theoretical cross sections and available measured cross sections, reveal two linear regions as predicted by de Heer and Inokuti [in Electron Impact Ionization, edited by T. D. Märk and G. H. Dunn, (Springer-Verlag, Vienna, 1985), Chap. 7, pp. 232-276]. For each region, we made linear fits and determined values of the two element-specific Bethe parameters. We found systematic variations of these parameters with atomic number for both the low- and the high-energy linear regions of the Fano plots. We also determined the energy ranges over which the Bethe equation can be used.
Transactions of the nuclear societies of Israel joint meeting 1994
International Nuclear Information System (INIS)
The 18th convention of the Israel nuclear societies transactions book contains presentations in the following topics: reactor physics, health physics, radiation protection, nuclear medicine and general reviews about the status of nuclear energy in Israel
Israel's position on non-proliferation
International Nuclear Information System (INIS)
Israel maintained that the complex international system and worldwide political tension created a situation in which comprehensive plans of disarmament could not produce any positive result. The deadlock in the field of general and complete disarmament has brought Israel to the realization that one possible way to alleviate the stalemate could be progress by stages through partial measures of disarmament. Israel's position on non-proliferation indicates that the establishment of a nuclear-weapon-free-zone (NWFZ), as it relates to the Middle-East, could serve as a credible alternative to the unilateral adherence to the Non-Proliferation of Nuclear Weapon (NPT) and an effective measure of non-proliferation in the region. (Author)
Commercial and Industrial Cyber Espionage in Israel
Directory of Open Access Journals (Sweden)
Shahar Argaman
2014-03-01
Full Text Available Cyberspace is especially suited to the theft of business information and to espionage. The accessibility of information, along with the ability to remain anonymous and cover one’s tracks, allows various entities to engage in the theft of valuable information, an act that can cause major damage. Israel, rich in advanced technology and a leader in innovation-based industries that rely on unique intellectual property, is a prime target for cyber theft and commercial cyber attacks. This article examines the scope of cyber theft and cyber industrial espionage globally, and attempts to estimate how much financial damage they cause in countries around the world and in Israel. It seeks to raise awareness of the extent of the phenomena among the relevant authorities in Israel and provide recommendations on how to grapple with it.
Spirituality in Teacher Training at an Islamic College in Israel
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…
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.
Modified Bethe formula for low-energy electron stopping power without fitting parameters
International Nuclear Information System (INIS)
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. - Highlights: • We propose a modified Bethe formula for low-energy electron stopping power without fitting parameters. • Our formula is found based on the stopping power calculated by the dielectric theory including the exchange effect. • We calculate the energy deposition distribution of 3 keV electrons in 15 nm HSQ resist layer on Si substrate
Modeling dynamical electron scattering with Bethe potentials and the scattering matrix.
Wang, A; De Graef, M
2016-01-01
Bethe potentials were introduced by Bethe in 1928 as a first order perturbation approach to reducing the number of diffracted beams in dynamical electron scattering problems. The approach starts from the Bloch wave representation, and uses a threshold criterion to split the diffracted beams into two subsets, namely strong and weak beams. Since the use of Bloch wave based Bethe potentials for defect simulations is somewhat tedious, this paper applies the perturbation approach to the scattering matrix formalism, which is more readily adaptable for defect image simulations. The size of the dynamical matrix, and hence the computation time, can be reduced significantly. A threshold criterion for the separation of scattered beams into strong and weak sets is introduced. A general guideline in setting the threshold for strong or weak beam selection is discussed along with several parameters that may influence the threshold values, such as atomic number, accelerating voltage, structure complexity, incident beam tilt and temperature. PMID:26433091
The Barkas-Effect Correction to Bethe-Bloch Stopping Power
Porter, L. E.
A brief history of the discovery of the Barkas-effect correction to the Bethe-Bloch stopping power formula is presented, followed by a recounting of the initial theoretical calculations prepared as a quantitative explanation. A current version of the modified Bethe-Bloch formula is described in detail. An overview of the current capability to assess the validity of several existing formalisms for calculating the Barkas-effect correction term is provided, in the course of which discussion of numerous sources of uncertainty ensues. Finally, an opinion on the significance of this departure from Bethe-Bloch theory is offered, along with a presentation of a few recent developments and of some areas for focus in future exploration in the field of the stopping power of matter for charged particles.
Topologically Twisted SUSY Gauge Theory, Gauge-Bethe Correspondence and Quantum Cohomology
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.
Domestic violence in Israel: changing attitudes.
Muhlbauer, Varda
2006-11-01
For many years, knowledge of the prevalence of violence against women in Israel was marginalized in such a way that it never figured in public discourse. Elite groups of academics and feminist activists with a Western background, together with human rights groups, delivered subversive messages that gradually infiltrated into larger circles and ultimately changed public policies. The issue is now central in public affairs. This article discusses the extent of violence against women in Israel and suggests explanations for the shift from denial to greater public awareness. PMID:17189512
[The centenary of the Israel Medical Association].
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.
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
Bethe Ansatz Matrix Elements as Non-Relativistic Limits of Form Factors of Quantum Field Theory
Kormos, M.; Mussardo, G.; Pozsgay, B.
2010-01-01
We show that the matrix elements of integrable models computed by the Algebraic Bethe Ansatz 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 limit of the S-matrix of a field theory, and when there is a well-defined mapping between the Hilbert spaces and operators of the two theories. This correspondence provides an efficient method to compu...
Hofstadter Problem on the Honeycomb and Triangular Lattices: Bethe Ansatz Solution
Kohmoto, M.; Sedrakyan, A.
2006-01-01
We consider Bloch electrons on the honeycomb lattice under a uniform magnetic field with $2 \\pi p/q$ flux per cell. It is shown that the problem factorizes to two triangular lattices. Treating magnetic translations as Heisenberg-Weyl group and by the use of its irreducible representation on the space of theta functions, we find a nested set of Bethe equations, which determine the eigenstates and energy spectrum. The Bethe equations have simple form which allows to consider them further in the...
Child Drama in Israel: Two Perspectives.
Furman, Lou
1987-01-01
Examines, through interviews with two prominent Israeli theatre teachers, the status of children's theatre in Israel at the present, and notes the problems with the types of children's theatre being produced, including the fact that children's plays are too didactic, and that there is little funding to produce them. (JC)
Israel, CERN’s new Member State
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.
Environmental Education in Israel: A Model.
Washton, Nathan S.
1981-01-01
The interdisciplinary and multidisciplinary curriculum at the experimental high school on the Sde Boker campus of Ben Gurion University in the Negev, Israel, is described. It is viewed as a worldwide model available to academic communities to study the impact of environment on survival of all living things. (MP)
The Teaching of Additional Languages in Israel.
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…
Birth Order and Marital Bliss in Israel
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)
Is nursing shortage in Israel inevitable?
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
Bethe ansatz for an AdS/CFT open spin chain with non-diagonal boundaries
Zhang, Xin; Cui, Shuai; Nepomechie, Rafael I; Yang, Wen-Li; Shi, Kangjie; Wang, Yupeng
2015-01-01
We consider the integrable open-chain transfer matrix corresponding to a Y=0 brane at one boundary, and a Y_theta=0 brane (rotated with the respect to the former by an angle theta) at the other boundary. We determine the exact eigenvalues of this transfer matrix in terms of solutions of a corresponding set of Bethe equations.
Normalization and perturbation theory for tightly bound states of the spinor Bethe-Salpeter equation
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
Exact solutions of the spinor Bethe-Salpeter equation for tightly bound states
L.G. Suttorp
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
Hadronic Observables from Dyson-Schwinger and Bethe-Salpeter equations
Sanchis-Alepuz, Helios
2015-01-01
In these proceedings we present a mini-review on the topic of the Dyson-Schwinger/Bethe-Salpeter approach to the study of relativistic bound-states in physics. In particular, we present a self-contained discussion of their derivation, as well as their truncation such that important symmetries are maintained.
Numerical solution of the spinor Bethe-Salpeter equation and the Goldstein problem
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
Calculation of Spin Observables for Proton-Neutron Elastic Scattering in the Bethe-Salpeter Equation
Kinpara, Susumu
2016-01-01
Bethe-Salpeter equation is applied to $p$-$n$ elastic scattering. The spin observables are calculated by the M matrix similar to $p$-$p$ case. The parameters of the meson-exchange model are used with the cut-off for the pion exchange interaction. Change of the M matrix indicates breaking of the charge independence in the nucleon-nucleon system.
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.
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.``
Bethe Ansatz from functional relations of open XXZ chain for new special cases
Murgan, R; Murgan, Rajan; Nepomechie, Rafael I.
2005-01-01
The transfer matrix of the general integrable open XXZ quantum spin chain obeys certain functional relations at roots of unity. By exploiting these functional relations, we determine the Bethe Ansatz solution for the transfer matrix eigenvalues for the special cases that all but one of the boundary parameters are zero, and the bulk anisotropy parameter is i\\pi/3, i\\pi/5 ,...
Wiegmann, P. B.; Zabrodin, A. V.
1993-01-01
We present a new approach to the problem of Bloch electrons in magnetic field,\\\\ by making explicit a natural relation between magnetic translations and the\\\\quantum group $U_{q}(sl_2)$. The approach allows to express the spectrum and\\\\\\ the Bloch function as solutions of the Bethe-Ansatz equations typical for com\\\\pletely integrable quantum systems
Dhar, Abhishek; Sriram Shastry, B.
2000-09-01
We present a calculation of the lowest excited states of the Heisenberg ferromagnet in 1D for any wave vector. These turn out to be string solutions of Bethe's equations with a macroscopic number of particles in them. They are identified as generalized quantum Bloch wall states, and a simple physical picture is provided for the same.
Dhar, Abhishek; Shastry, B. Sriram
2000-01-01
We present a calculation of the lowest excited states of the Heisenberg ferromagnet in 1-d for any wave vector. These turn out to be string solutions of Bethe's equations with a macroscopic number of particles in them. These are identified as generalized quantum Bloch wall states, and a simple physical picture provided for the same.
International Nuclear Information System (INIS)
The Born-Hartree-Bethe approximation for the calculation of total (elastic + inelastic) integral cross section for high-energy electron-atom and electron-molecule scattering containing no free parameter is formulated. Corresponding results are obtained for He, Ne, Ar, Kr, Xe, H2 and N2 and compared with experimental data.
Maxillofacial trauma resulting from terror in Israel.
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.
Macroeconomic Effects of Terrorist Shocks in Israel
Denis Larocque; Geneviève Lincourt; Michel Normandin
2008-01-01
This paper estimates a structural vector autoregression model to assess the dynamic effects of terrorism on output and prices in Israel over the post-1985 period. Long-run restrictions are used to obtain an interpretation of the effects of terrorism in terms of aggregate demand and supply curves. The empirical responses of output and prices suggest that the immediate effects of terrorism are similar to those associated with a negative demand shock. Such leftward shift of the aggregate demand ...
Politics and Arab women mobilization in Israel
Directory of Open Access Journals (Sweden)
Élisabeth Marteu
2007-10-01
Full Text Available Divided between a Palestinian identity, largely proclaimed, and a gender consciousness, currently in the process of being reformulated, the political citizenship of Arab or Palestinian women citizens of Israel must be apprehended by taking into consideration this double referent of identity. The process of formation of a “gendered” identity in this ethnic minority, already torn between an Israeli citizenship and an Arab nationality, must not be underestimated. Constituting today nearly 18 % o...
Facial image of Biblical Jews from Israel.
Kobyliansky, E; Balueva, T; Veselovskaya, E; Arensburg, B
2008-06-01
The present report deals with reconstructing the facial shapes of ancient inhabitants of Israel based on their cranial remains. The skulls of a male from the Hellenistic period and a female from the Roman period have been reconstructed. They were restored using the most recently developed programs in anthropological facial reconstruction, especially that of the Institute of Ethnology and Anthropology of the Russian Academy of Sciences (Balueva & Veselovskaya 2004). The basic craniometrical measurements of the two skulls were measured according to Martin & Saller (1957) and compared to the data from three ancient populations of Israel described by Arensburg et al. (1980): that of the Hellenistic period dating from 332 to 37 B.C., that of the Roman period, from 37 B.C. to 324 C.E., and that of the Byzantine period that continued until the Arab conquest in 640 C.E. Most of this osteological material was excavated in the Jordan River and the Dead Sea areas. A sample from the XVIIth century Jews from Prague (Matiegka 1926) was also used for osteometrical comparisons. The present study will characterize not only the osteological morphology of the material, but also the facial appearance of ancient inhabitants of Israel. From an anthropometric point of view, the two skulls studied here definitely belong to the same sample from the Hellenistic, Roman, and Byzantine populations of Israel as well as from Jews from Prague. Based on its facial reconstruction, the male skull may belong to the large Mediterranean group that inhabited this area from historic to modern times. The female skull also exhibits all the Mediterranean features but, in addition, probably some equatorial (African) mixture manifested by the shape of the reconstructed nose and the facial prognatism. PMID:18712157
Pediatric allergy and immunology in Israel.
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.
Electro-optics and lasers in Israel
Van Zwaren, Joesph
1992-05-01
With over 3,000 scientists, engineers, and technicians spread out in some 86 companies, and in 10 universities and research institutes, all within less than a 2 hour drive from one another, Israel has no doubt one of the largest concentrations of researchers and skilled manpower in electro-optics and lasers in the world. This report presents an up-to-date picture of the field in Israel, covering the industry, academia and education. The recent wave of Russian immigration is bringing thousands of scientists and tens of thousands of engineers and is expected to make an impact on the field of electro-optics and lasers. A million immigrants from Russia are expected to come between 1990 and 1995. There were 3,700 scientists and 2,800 engineers among the first 200,000 Soviet immigrants. As most of this qualified manpower can not be expected to be absorbed by the existing industry, the Israeli government is actively encouraging local and foreign investors and local and multinational companies to help develop new and expanded high-tech enterprises in Israel. The Ministry of Industry and Trade has embarked upon a broad ranged program for industrial growth and immigrant absorption with the goal of doubling technology-based exports in the next four years. The Ministry of Science and Technology has started a program supporting R&D projects at the different universities for immigrant scientists with the goal of capitalizing on the talents of the newcomers to strengthen academia.
Israel-New natural gas producer in the Mediterranean
Energy Technology Data Exchange (ETDEWEB)
Shaffer, Brenda, E-mail: bshaffer@univ.haifa.ac.il [School of Political Sciences, University of Haifa, Mount Carmel, Haifa 31905 (Israel)
2011-09-15
In 2009 and 2010, major offshore natural gas reserves were discovered near the State of Israel. This article examines Israel's newly discovered natural gas reserves and the implications of this discovery for Israel, the Middle East, and the Mediterranean region. The article will discuss Israel's energy security approach; the role of natural gas in Israel's energy consumption patterns; the organization of Israel's natural gas sector; regional political and security implications of the natural gas discoveries; the prospects for export, and the outlook for various natural gas markets. These new discoveries significantly improve Israel's energy security. They may also spur Israel to develop technologies related to utilization of natural gas in a variety of sectors, such as transportation. The discoveries may contribute to the emergence of a number of maritime border delimitation conflicts in the Eastern Mediterranean. At current volumes, the Israeli discoveries will not be a game-changer for gas markets in southern Europe or liquefied natural gas (LNG) markets. However, they will lead to expanded natural gas consumption in the region. In addition, offshore exploration efforts in Israel and in neighboring countries are intensifying. Additional discoveries may turn the Eastern Mediterranean region into a new source of natural gas and oil. - Highlights: > In 2009 and 2010, major natural gas deposits were discovered offshore of Israel's port city of Haifa. > They will satisfy a large portion of Israel's domestic energy consumption needs for a number of decades. > The gas discoveries have created an opportunity to fundamentally change the country's energy policies. > Additional discoveries may turn the Eastern Mediterranean region into a new source of natural gas and oil. > Israel could become a supplier of natural gas to neighbors in the Middle East region, such as Jordan.
Israel-New natural gas producer in the Mediterranean
International Nuclear Information System (INIS)
In 2009 and 2010, major offshore natural gas reserves were discovered near the State of Israel. This article examines Israel's newly discovered natural gas reserves and the implications of this discovery for Israel, the Middle East, and the Mediterranean region. The article will discuss Israel's energy security approach; the role of natural gas in Israel's energy consumption patterns; the organization of Israel's natural gas sector; regional political and security implications of the natural gas discoveries; the prospects for export, and the outlook for various natural gas markets. These new discoveries significantly improve Israel's energy security. They may also spur Israel to develop technologies related to utilization of natural gas in a variety of sectors, such as transportation. The discoveries may contribute to the emergence of a number of maritime border delimitation conflicts in the Eastern Mediterranean. At current volumes, the Israeli discoveries will not be a game-changer for gas markets in southern Europe or liquefied natural gas (LNG) markets. However, they will lead to expanded natural gas consumption in the region. In addition, offshore exploration efforts in Israel and in neighboring countries are intensifying. Additional discoveries may turn the Eastern Mediterranean region into a new source of natural gas and oil. - Highlights: → In 2009 and 2010, major natural gas deposits were discovered offshore of Israel's port city of Haifa. → They will satisfy a large portion of Israel's domestic energy consumption needs for a number of decades. → The gas discoveries have created an opportunity to fundamentally change the country's energy policies. → Additional discoveries may turn the Eastern Mediterranean region into a new source of natural gas and oil. → Israel could become a supplier of natural gas to neighbors in the Middle East region, such as Jordan.
Community healthcare in Israel: quality indicators 2007-2009
Jaffe Dena H; Shmueli Amir; Ben-Yehuda Arie; Paltiel Ora; Calderon Ronit; Cohen Arnon D; Matz Eran; Rosenblum Joseph K; Wilf-Miron Rachel; Manor Orly
2012-01-01
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 ...
THE PALESTINIAN LABOUR IN ISRAEL: INDICATIONS OF INTERNAL COLONIALISM
SAYIN, Özgür
2015-01-01
The property and production structure in the occupied territories of the West Bank and Gaza, and employment of Palestinians in the Israeli labour market is changing. The concept of internal colonialism offers a better understanding about the economic concerns of Israel on the occupied territories than imperialism or sub-imperialism. This is because the relationship between Israel and the occupied territories has an ethnic characteristic, and additionally, Israel cannot be easily explained as ...
A new integral representation for the scalar products of Bethe states for the XXX spin chain
Kazama, Yoichi; Nishimura, Takuya
2013-01-01
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.
Algebraic Bethe ansatz for the quantum group invariant open XXZ chain at roots of unity
Directory of Open Access Journals (Sweden)
Azat M. Gainutdinov
2016-08-01
Full Text Available For generic values of q, all the eigenvectors of the transfer matrix of the Uqsl(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=eiπ/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.
Spectrum and Bethe-Salpeter amplitudes of $\\Omega$ baryons from lattice QCD
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^+}
Algebraic Bethe ansatz for the quantum group invariant open XXZ chain at roots of unity
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.
Algebraic Bethe ansatz for the quantum group invariant open XXZ chain at roots of unity
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.
Calculation of the relativistic Bethe logarithm in the two-center problem
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.
Calculation of the relativistic Bethe logarithm in the two-center problem
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.
Bethe ansatz solvability and supersymmetry of the M2 model of single fermions and pairs
International Nuclear Information System (INIS)
A detailed study of a model for strongly-interacting fermions with exclusion rules and lattice N=2 supersymmetry is presented. A submanifold in the space of parameters of the model where it is Bethe-ansatz solvable is identified. The relation between this manifold and the existence of additional, so-called dynamic, supersymmetries is discussed. The ground states are analysed with the help of cohomology techniques, and their exact finite-size Bethe roots are found. Moreover, through analytical and numerical studies it is argued that the model provides a lattice version of the N=1 super-sine-Gordon model at a particular coupling where an additional N=(2,2) supersymmetry is present. The dynamic supersymmetry is shown to allow an exact determination of the gap scaling function of the model. (paper)
A new integral representation for the scalar products of Bethe states for the XXX spin chain
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.
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.
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.)
Quantum integrable systems, non-skew-symmetric r-matrices and algebraic Bethe ansatz
Skrypnyk, T.
2007-02-01
We prove the integrability of the general quantum Hamiltonian systems governed by an arbitrary non-skew-symmetric, so(3)-valued, nondynamical classical r-matrix with spectral parameters. We consider the most interesting example of these quantum integrable systems, namely, the so(3) "generalized Gaudin systems" in detail. In the case of an arbitrary r-matrix which is "diagonal" in the sl(2) basis we calculate the spectrum and the eigenvalues of the corresponding Hamiltonians using the algebraic Bethe ansatz technique.
Solution of the Bethe-Goldstone Equation without Partial Wave Decomposition
White, L; Sammarruca, F.
2013-01-01
We present a method for solving the nucleon-nucleon scattering equation without the use of a partial wave expansion of the scattering amplitude. After verifying the accuracy of the numerical solutions, we proceed to apply the method to the in-medium scattering equation (the Bethe-Goldstone equation) in three dimensions. A focal point is a study of Pauli blocking effects calculated in the (angle-dependent) three-dimensional formalism as compared to the usual spherical approximation. We discuss...
Drinfeld Twist and Symmetric Bethe Vectors of Open XYZ Chain with Non-Diagonal Boundary Terms
Institute of Scientific and Technical Information of China (English)
陈曦; 冯俊; 郝昆; 吴可; 杨文力; 杨战营; 张耀中
2012-01-01
With the help of the Drinfeld twist or factorizing F-matrix for the eight-vertex solid-on-solid （SOS） model, we find that in the F-basis provided by the twist the two sets of pseudo-particle creation operators simultaneously take completely symmetric and polarization free form. This allows us to obtain the explicit and completely symmetric expressions of the two sets of Bethe states of the model.
Calculation of Spin Observables for Proton-Proton Elastic Scattering in the Bethe-Salpeter Equation
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 ${}^{\\rm 1}S_{\\rm 0}$.
Bethe-ansatz equations for quantum Heisenberg chains with elliptic exchange
Inozemtsev, V. I.
1999-01-01
The eigenvectors of the Hamiltonian ${\\cal H}_{N}$ of $N$-sites quantum spin chains with elliptic exchange are connected with the double Bloch meromorphic solutions of the quantum continuous elliptic Calogero-Moser problem. This fact allows one to find the eigenvectors via the solutions to the system of highly transcendental equations of Bethe-ansatz type which is presented in explicit form.
Hierarchical Structure of Azbel-Hofstader Problem: Strings and loose ends of Bethe Ansatz
Abanov, A. G.; Talstra, J. C.; Wiegmann, P. B.
1997-01-01
We present numerical evidence that solutions of the Bethe Ansatz equations for a Bloch particle in an incommensurate magnetic field (Azbel-Hofstadter or AH model), consist of complexes-"strings". String solutions are well-known from integrable field theories. They become asymptotically exact in the thermodynamic limit. The string solutions for the AH model are exact in the incommensurate limit, where the flux through the unit cell is an irrational number in units of the elementary flux quantu...
Gluon bound state and asymptotic freedom derived from the Bethe--Salpeter equation
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.
A Generalized Uhlenbeck and Beth Formula for the Third Cluster Coefficient
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 ...
Symmetry preserving truncations of the gap and Bethe-Salpeter equations
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.
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.
Advances in solving the two-fermion homogeneous Bethe-Salpeter equation in Minkowski space
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...
The connection of two-particle relativistic quantum mechanics with the Bethe-Salpeter equation
International Nuclear Information System (INIS)
We show the formal equivalence between the wave equations of two-particle relativistic quantum mechanics, based on the manifestly covariant hamiltonian formalism with constraints, and the Bethe-Salpeter equation. This is achieved by algebraically transforming the latter so as to separate it into two independent equations which match the equations of hamiltonian relativistic quantum mechanics. The first equation determines the relative time evolution of the system, while the second one yields a three-dimensional eigenvalue equation. A connection is thus established between the Bethe-Salpeter wave function and its kernel on the one hand and the quantum mechanical wave function and interaction potential on the other. For the sector of solutions of the Bethe-Salpeter equation having non-relativistic limits, this relationship can be evaluated in perturbation theory. We also device a generalized form of the instantaneous approximation which simplifies the various expressions involved in the above relations. It also permits the evaluation of the normalization condition of the quantum mechanical wave function as a three-dimensional integral
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.)
Promouvoir le francais: Norvege, Chine, Israel (Promoting French: Norway, China, Israel).
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)
Israel's Bir Zeit University: A Center for Palestinian Nationalism.
Clark, Staughton
1981-01-01
Located in Israel's West Bank area, BirZeit University has always been and remains the central incubator of West Bank intellectual radicalism in Israel. The majority of law-abiding, serious students are actually afraid, or intimidated, of speaking out against the PLO or its campus supporters. (MLW)
Latino migrants in the Jewish state: undocumented lives in Israel
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
Educational Travel to Israel in the Era of Globalization
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…
Israel – Kultur(en) der Migration
Baumann, Julia
2014-01-01
Flüchtlingsbewegungen aus häufig kriegszerstörten Ländern in die sogenannte „westliche Welt“ prägen gerade in letzter Zeit die öffentlichen Berichterstattungen. Der Umgang mit Flüchtlingen fällt Politik und Gesellschaft in den Ankunftsländern meist schwer, da sie bestehende Ordnungssysteme und nationale Identitäten zu bedrohen scheinen. Seit dem Jahr 2008 ist auch Israel Ziel vieler Flüchtlinge. Die Ankunft von über 60.000 afrikanischer Einwanderer und Einwanderinnen bis 2014, vor allem aus E...
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.)
Israel Atomic Energy Commission 1997 Annual Report
International Nuclear Information System (INIS)
The 1997 Annual Report is published in a special year for Israel, marking the 50th anniversary of its independece and statehood. From its inception, and the election of a distinguished scientist as its first president, Israel has regarded science and technology as a central pillar for future AEC development and a lever for improved quality of life of its people. The Israel Atomic Energy Commission, which will be celebrating its own anniversary in a few years, has made a modest but significant contribution to the establishment and growth of the technological infrastructure of the country. The first article in this Annual Report focuses attention on yet another aspect of our continuing investigation of the basic properties of technologically interesting and important materials, presented in our 1994 and 1996 Annual Reports. The current entry describes an application of the nuclear Time Differential Perturbed Angular Correlation technique to the study of the structure and properties of metal-hydrogen compounds, of potential interest within the framework of future, environmentally attractive hydrogen-burning energy systems, and in fusion power reactors. The second article also relates to some basic aspects of nuclear fusion. A theoretical study of the behavior and properties of laser-generated hot plasmas resulted in the proposal of a new confinement scheme, in which a plasma generated by circularly polarized laser light is confined in a miniature magnetic bottle created by magnetic fields induced in the plasma by the same light. The paper discusses the conditions under which such confinement and ensuing energy gain may be achieved. Measurements of actual axial magnetic fields generated in plasma by intense circularly polarized laser light are also reported. The third report describes one of our ongoing efforts to improve and streamline the techniques and procedures used in medical applications of radioisotopes. Replacement of the customary )311 solutions for
Perspectives on labour migration in Israel
Willen, Sarah S.
2006-01-01
The Setting: Tel Aviv’s Central Bus Station, “capital of the foreign workers”Half a century after the establishment of the State of Israel, a stranger meandering through Tel Aviv’s labyrinthian, seven-story Central Bus Station would be surprised to hear not just Hebrew, or even just Israel’s recognized languages of Hebrew and Arabic, Russian and Amharic, but rather a global cacophony of languages: Tagalog and Romanian, Nigerian languages like Igbo and Yoruba, and Ghanaian languages like Twi a...
Neospora caninum in crows from Israel.
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. PMID:26359640
[The beginnings of orthopedic surgery in Israel].
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. PMID:24167938
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.
Cost containment: the Middle East. Israel.
Stern, Z; Altholz, J; Sprung, C L
1994-08-01
The Israeli Health Service was established with the intent of providing an equal standard of care to the entire Israeli population. The Health Service has dealt with changes over the years, including the governing of large populations of Judea, Samaria, and Gaza. In 1990, mass immigration brought 500,000 more individuals to Israel, putting an additional burden on medical services. ICUs in Israel began to emerge after the Six Day War in 1967. The government's Ministry of Health has approved a limited amount of ICU beds. Beyond this set amount, hospital directors decide whether to establish additional ICU beds, weighing departmental pressures from within the hospital to create beds against the knowledge that the hospital will not be reimbursed more than the per diem rate of an ordinary hospital bed ($US 265). Hospital directors and administrators, knowing that the average daily cost of an ICU bed is close to $US 800, turn to their supporting organization to finance the uncontrollable deficit, seek aid from the Ministry of Health to make the per diem rates or diagnosis-related group reimbursements more realistic, and/or implement hospital policies aimed at cutting costs and personnel. PMID:8087600
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,...
7 CFR 319.56-24 - Lettuce and peppers from Israel.
2010-01-01
... 7 Agriculture 5 2010-01-01 2010-01-01 false Lettuce and peppers from Israel. 319.56-24 Section 319... Lettuce and peppers from Israel. (a) Lettuce may be imported into the United States from Israel without... section have been met. (b) Peppers (fruit) (Capsicum spp.) from Israel may be imported into the...
Estados Unidos e Israel, de la alianza a la simbiosis
Izquierdo Brichs, Ferran
2003-01-01
La relación de Israel con Estados Unidos ha ido evolucionando de la alianza durante la Guerra Fría a la simbiosis en la actualidad. La política norteamericana hacia Oriente Medio ha estado marcada por el interés en el petróleo, a la que se ha ido sumando la creciente relación con Israel. Sin embargo, mientras que durante mucho tiempo los intereses compartidos con Arabia Saudí y otros países árabes moderaron la política estadounidense y equilibraron un poco su apoyo a Israel, en los últimos añ...
Group Psychotherapy in Israel: History and Main Trends.
Raufman, Ravit; Nesher, Ronit; Weinberg, Haim
2015-10-01
In Israel, the sense of belonging carries special meaning for historical and contemporary reasons. Since its establishment, Israel, with a background of centuries of persecution of the Jews, has been subjected to a consistent threat of war and terror that makes it a traumatized society. On the one hand, this intensifies social cohesiveness, especially in times of war. Yet many of the threats pose existential, political, and ideological dilemmas. The trauma of the Holocaust coupled with the continuous existence of wars enhanced the development of special kinds of groups. No wonder group therapy in Israel flourishes, perhaps more than in any other Western country (Nuttman-Shwartz & Weinberg, 2002). PMID:26401803
Isothermal vs. isentropic description of protoneutron stars in the Brueckner-Bethe-Goldstone theory
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.
Exact treatment of the Pauli exclusion operator in the nuclear matter Bethe-Goldstone equation
International Nuclear Information System (INIS)
We solve the Bethe-Goldstone equation in nuclear matter for the scattering of a nucleon of a few hundred MeV. The angular momentum coupling caused by the nonspherical part of the Pauli blocking operator is treated exactly. It is found that standard approximation of angle averaging the Pauli operator is quite accurate for bulk properties of the reaction matrix even at energies as high as 300 MeV. Our result justifies one of the common approximations previously untested in the microscopic calculation of the optical model potential
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.
Femininity, Childhood and the Non-Making of a Sporting Celebrity: The Beth Tweddle Case
Cohen, R. L.
2013-01-01
Gymnastics is regularly classified as a feminine-appropriate sport, embodying grace and elegance. Furthermore, it is the Olympic sport which has regularly produced female sporting celebrities. Beth Tweddle is the most successful British gymnast of all time and the first to achieve international success, culminating in a medal at London 2012, yet she has received relatively little media coverage and few corporate endorsements. Employing a â€˜negative caseâ€™ methodology, this athleteâ€™s relat...
Ein Frankfurter Physiker, der die Welt veränderte : Hans Albrecht Bethes bewegtes Leben
Schmidt-Böcking, Horst (Prof. Dr.)
2008-01-01
Der Nobelpreisträger Hans Albrecht Bethe war einer der ganz großen Physiker des 20. Jahrhunderts. Er gilt als einer der Väter der modernen Quantenphysik. In seiner Bedeutung für die Entwicklung der modernen Physik kommt er selbst Werner Heisenberg oder Max Planck sehr nahe. Er ist in Frankfurt aufgewachsen, hat hier das Goethe-Gymnasium besucht und an der Universität Frankfurt studiert. 1933 musste er emigrieren, da seine Mutter jüdischen Glaubens war. In seiner Heimatstadt Frankfurt ist er b...
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.
Explicit Solutions of the Bethe Ansatz Equations for Bloch Electrons in a Magnetic Field
Hatsugai, Yasuhiro; Kohmoto, Mahito; Wu, Yong-Shi
1994-01-01
For Bloch electrons in a magnetic field, explicit solutions are obtained at the center of the spectrum for the Bethe ansatz equations recently proposed by Wiegmann and Zabrodin. When the magnetic flux per plaquette is $1/Q$ where $Q$ is an odd integer, distribution of the roots is uniform on the unit circle in the complex plane. For the semi-classical limit, $ Q\\rightarrow\\infty$, the wavefunction obeys the power low and is given by $|\\psi(x)|^2=(2/ \\sin \\pi x)$ which is critical and unnormal...
Quantum Group and Magnetic Translations. Bethe-Ansatz Solution for Azbel-Hofstadter Problem
Wiegmann, P. B.; Zabrodin, A. V.
1993-01-01
We present a new approach to the problem of Bloch electrons in magnetic ( sometimes called Azbel-Hofstadter problem) field, by making explicit a natural relation between the group of magnetic translations and the quantum group $U_{q}(sl_2)$. The approach allows us to express the "mid" band spectrum of the model and the Bloch wave function as solutions of the Bethe-Ansatz equations typical for completely integrable quantum systems. The zero mode wave functions are found explicitly in terms of ...
Quantum Group, Bethe Ansatz and Bloch Electrons in a Magnetic Field
Hatsugai, Y.; Kohmoto, M.; Wu, Y.-S.
1995-01-01
The wave functions for two dimensional Bloch electrons in a uniform magnetic field at the mid-band points are studied with the help of the algebraic structure of the quantum group $U_q(sl_2)$. A linear combination of its generators gives the Hamiltonian. We obtain analytical and numerical solutions for the wave functions by solving the Bethe Ansatz equations, proposed by Wiegmann and Zabrodin on the basis of above observation. The semi-classical case with the flux per plaquette $\\phi=1/Q$ is ...
Spa treatment of Chernobyl liquidators in Israel
International Nuclear Information System (INIS)
This paper presents the first experience gained in the use of the unique climate and spa of the Dead Sea for the treatment and rehabilitation of the Chernobyl liquidators at clinic near the city of Arad. Ninety-six patients were treated in Israel, in 40 of these radiation was the etiological factor of the disease: consequences of acute and chronic radiation disease, the astheno-neurotic syndrome, discirculatory encephalopathy, subatrophic laryngopharyngitis, and obstructive bronchitis. Eighty-eight patients had direct indications for treatment at the Dad Sea; locomotory, respiratory, and skin diseases. The course of treatment included the Dad Sea baths, mud applications, sun baths, climatotherapy, physiotherapy, massage, bioenergy therapy, inhalations, moisturizing creams, etc. An appreciable improvement with resolution of the principal symptoms was attained in 82% of patients, in 13% improvement with a significant abatement of the symptoms was achieved, whereas in 5% no apparent results were seen
Israel Atomic Energy Commission 1996 Annual Report
International Nuclear Information System (INIS)
Selecting the research efforts to be highlighted in the Israel Atomic Energy Commission's Annual Report from the large body and broad spectrum of ongoing work is not an easy task. The extensive bibliography of published results attached to the report attests to the scope of this difficulty. Of the many worthwhile projects, four were chosen to represent best the current trends in the continuing R and D program at the research centers of the Israel Atomic Energy Commission. One of these trends is the growing cooperation with private industry, in an attempt to gear our R and D programs to respond to market demands. Another feature, noted already several years ago, is the extensive collaboration of our scientists and engineers with colleagues at other institutions, in Israel and abroad. some of the work reported is part of evolving international industrial cooperation projects, illustrating both these trends. Following a trend common to many nuclear research centers around the world, a substantial part of our research effort is non-nuclear in nature. This is illustrated in the first article, which deals with advances in the application of non-linear optics in diverse fields of science and technology. These include state-of-the-art solid-state lasers, rapid modulation of light signals, development and generation of tunable sources of coherent light, optical data storage and the microscopic probing of biological and inorganic samples. The present work reports on a range of R and D, from the fundamentals of non-linear optical materials to proof-of-principle demonstrations of non-linear subwavelength resolution microscopy, to fabrication of prototype commercial tunable laser systems The second report considers the microstrain characteristics in some alloys using X-ray diffraction (XRD). The research utilizes XRD line broadening effects to study the characteristics of alloys from especially prepared surfaces. These characteristics include the homogeneity of alloying
Profete in Israel: ’n Probleemstelling
Directory of Open Access Journals (Sweden)
F. E. Deist
1990-01-01
Full Text Available Prophets in Israel: Stating a problem The Writing Prophets have, in Christian circles, traditionally been painted in a fairly romantic light as the giants of faith. A comparison between the superscriptions of the prophetic books and the historical literature of the Old Testament as well between the Jewish, Samaritan and Christian traditions’ views of the prophets raises several questions regarding the ‘office’ of the prophets, their social role and the notion of the church’s ‘prophetic’ calling. In the light of these questions the article calls for a fresh historical look at the Writing Prophets and identifies a few problem areas that may warrant further investigation.
Religiosity, nationalism and fertility in Israel.
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.
Gainutdinov, A M; Nepomechie, Rafael I; Sommese, Andrew J
2015-01-01
We consider the sl(2)_q-invariant open spin-1/2 XXZ quantum spin chain of finite length N. For the case that q is a root of unity, we propose a formula for the number of admissible solutions of the Bethe ansatz equations in terms of dimensions of irreducible representations of the Temperley-Lieb algebra; and a formula for the degeneracies of the transfer matrix eigenvalues in terms of dimensions of tilting sl(2)_q-modules. These formulas include corrections that appear if two or more tilting modules are spectrum-degenerate. For the XX case (q=exp(i pi/2)), we give explicit formulas for the number of admissible solutions and degeneracies. We also consider the cases of generic q and the isotropic (q->1) limit. Numerical solutions of the Bethe equations up to N=8 are presented. Our results are consistent with the Bethe ansatz solution being complete.
Academics urge Europe to suspend funds for Israel
2002-01-01
A total of 125 academics have demanded that Israel should be prevented from receiving funds from European research organizations until it opens peace negotiations with the Palestinians (4 paragraphs).
Suletud utoopia? / Israel Shahak ; tõlk. Lauri Pilter
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
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.
Exact satisfiability threshold for k -satisfiability problems on a Bethe lattice
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.
Symmetry preserving truncations of the gap and Bethe-Salpeter equations
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...
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.
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.
A Bethe ansatz solvable model for superpositions of Cooper pairs and condensed molecular bosons
Hibberd, K. E.; Dunning, C.; Links, J.
2006-08-01
We introduce a general Hamiltonian describing coherent superpositions of Cooper pairs and condensed molecular bosons. For particular choices of the coupling parameters, the model is integrable. One integrable manifold, as well as the Bethe ansatz solution, was found by Dukelsky et al. [J. Dukelsky, G.G. Dussel, C. Esebbag, S. Pittel, Phys. Rev. Lett. 93 (2004) 050403]. Here we show that there is a second integrable manifold, established using the boundary quantum inverse scattering method. In this manner we obtain the exact solution by means of the algebraic Bethe ansatz. In the case where the Cooper pair energies are degenerate we examine the relationship between the spectrum of these integrable Hamiltonians and the quasi-exactly solvable spectrum of particular Schrödinger operators. For the solution we derive here the potential of the Schrödinger operator is given in terms of hyperbolic functions. For the solution derived by Dukelsky et al., loc. cit. the potential is sextic and the wavefunctions obey PT-symmetric boundary conditions. This latter case provides a novel example of an integrable Hermitian Hamiltonian acting on a Fock space whose states map into a Hilbert space of PT-symmetric wavefunctions defined on a contour in the complex plane.
A Bethe ansatz solvable model for superpositions of Cooper pairs and condensed molecular bosons
Energy Technology Data Exchange (ETDEWEB)
Hibberd, K.E. [Centre for Mathematical Physics, University of Queensland, 4072 (Australia); Dunning, C. [Institute of Mathematics, Statistics and Actuarial Science, University of Kent (United Kingdom); Links, J. [Centre for Mathematical Physics, University of Queensland, 4072 (Australia)]. E-mail: jrl@maths.uq.edu.au
2006-08-07
We introduce a general Hamiltonian describing coherent superpositions of Cooper pairs and condensed molecular bosons. For particular choices of the coupling parameters, the model is integrable. One integrable manifold, as well as the Bethe ansatz solution, was found by Dukelsky et al. [J. Dukelsky, G.G. Dussel, C. Esebbag, S. Pittel, Phys. Rev. Lett. 93 (2004) 050403]. Here we show that there is a second integrable manifold, established using the boundary quantum inverse scattering method. In this manner we obtain the exact solution by means of the algebraic Bethe ansatz. In the case where the Cooper pair energies are degenerate we examine the relationship between the spectrum of these integrable Hamiltonians and the quasi-exactly solvable spectrum of particular Schrodinger operators. For the solution we derive here the potential of the Schrodinger operator is given in terms of hyperbolic functions. For the solution derived by Dukelsky et al., loc. cit. the potential is sextic and the wavefunctions obey PT-symmetric boundary conditions. This latter case provides a novel example of an integrable Hermitian Hamiltonian acting on a Fock space whose states map into a Hilbert space of PT-symmetric wavefunctions defined on a contour in the complex plane.
Efficient on-the-fly interpolation technique for Bethe-Salpeter calculations of optical spectra
Gillet, Yannick; Giantomassi, Matteo; Gonze, Xavier
2016-06-01
The Bethe-Salpeter formalism represents the most accurate method available nowadays for computing neutral excitation energies and optical spectra of crystalline systems from first principles. Bethe-Salpeter calculations yield very good agreement with experiment but are notoriously difficult to converge with respect to the sampling of the electronic wavevectors. Well-converged spectra therefore require significant computational and memory resources, even by today's standards. These bottlenecks hinder the investigation of systems of great technological interest. They are also barriers to the study of derived quantities like piezoreflectance, thermoreflectance or resonant Raman intensities. We present a new methodology that decreases the workload needed to reach a given accuracy. It is based on a double-grid on-the-fly interpolation within the Brillouin zone, combined with the Lanczos algorithm. It achieves significant speed-up and reduction of memory requirements. The technique is benchmarked in terms of accuracy on silicon, gallium arsenide and lithium fluoride. The scaling of the performance of the method as a function of the Brillouin Zone point density is much better than a conventional implementation. We also compare our method with other similar techniques proposed in the literature.
Semi-classical analysis of the inner product of Bethe states
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...
Matveev, V. I.; Makarov, D. N.
2011-09-01
A simple method including nonperturbative shell corrections has been developed for calculating energy losses on complex atoms. The energy losses of fast highly charged ions on neon, argon, krypton, and xenon atoms have been calculated and compared with experimental data. It has been shown that the inclusion of the non-perturbative shell corrections noticeably improves agreement with experimental data as compared to calculations by the Bethe-Bloch formula with the standard corrections. This undoubtedly helps to reduce the number of fitting parameters in various modifications of the Bethe-Bloch formula, which are usually determined semiempirically.
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.)
A Lagrangian formulation of relativistic Israel-Stewart hydrodynamics
Torrieri, Giorgio
2016-01-01
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 viscosity, and the requirement of a bounded energy-momentum "vacuum", forces the inclusion of the Israel-Stewart term into the theory, thereby providing a justification for the origin and uniqueness of these terms.
The Second Demographic Transition in Israel: One for All?
Evgenia Bystrov
2012-01-01
This article explores family behaviours and attitudes in Israel over the last decades through the lens of the Second Demographic Transition (SDT). Israel is divided by religious affiliation, the level of religiosity, ethnic origin and timing of immigration. Although fertility transition to replacement level among certain societal groups has been previously shown, the question of how the transition unfolds in other domains remains open. The goal of this paper is to highlight the diversity of m...
Tourism and Terror: a Case Study: Israel 1948-2012
Erik H. Cohen
2014-01-01
Israel is a popular tourist destination which has by afflicted by varying levels of terrorism against civilians over the course of its history. A longitudinal analysis of data pertaining to tourism and terrorism is undertaken to examine how terrorism affects patterns of tourism. It is found that on the macro-level, tourism to Israel continues to grow although it experiences periodic declines corresponding with times of high terrorist activity. National and religious subpopulations of tourists...
Op weg na 'n komprehensiewe geskiedenis van Ou-Israel
Eben Scheffler
1988-01-01
Towards a comprehensive history of ancient Israel This paper reflects on the aim of ancient Israelite historiography and argues for a comprehensive approach to the history of Israel. In such an approach various aspects of that history (political, socio-cultural, religious and literary) and their dynamic mutual interrelation should be accounted for. The classification of the history in various historical periods should also integrate with this comprehensive approach.
Israel's prevention programs and screening policies for cardiovascular disease.
Epstein, L
1984-01-01
For all four broad ethnic groups in Israel, mortality rates declined over the last decade for both ischemic heart disease (IHD) and cerebrovascular disease (CVD), the first and third most important causes of death in the country. The four broad ethnic groups consist of persons born in Israel, Asia, North Africa, and Europe. Mortality data also indicate a low male to female ratio in mortality from IHD, a definite female predominance in mortality from CVD, and high mortality rates for IHD and C...
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”.
Comparing aspects of mental health legislation of Israel and Massachusetts.
Mester, Roberto; Pinals, Debra
2004-01-01
This paper compares the manner in which two sets of mental health laws, that of Massachusetts, U.S.A., and that of the State of Israel, deal with specific areas of civil enforced commitment. The definition of psychiatric disorder that justifies commitment is broader in Massachusetts, in Israel psychosis alone is considered, excluding conditions such as severe non-psychotic depression, obsessive-compulsive disorder and anorexia. In Israel, commitment is possible only when there is a risk of danger that is immediate. In Massachusetts, only a judge can make decisions beyond the first four days, while in Israel they are made by a District Psychiatrist. Unlike Massachusetts, there is no possibility of enforced commitment of alcoholics or drug addicts in Israel, even in the presence of impaired judgement and severe family distress. The changing trends are presented, as Israel seems to be drawing slowly toward the Massachusetts position in some of these issues. The role of consumers in these processes is considered, as is the possibility of enforced commitment of people with severe personality disorders.
Nuclear Technology in Israel - Challenges and goals
International Nuclear Information System (INIS)
Israel,where 100% of all energy sources are imported, and where more than 100% of the water potential is used, will have to rely in the future on nuclear power reactors and nuclear desalination. The total electric capacity of about 4,000 Mwe in 1985 will propably rise to about 8,000 Mwe in 1995 and to about 16,000 Mwe or more in 2005. It is likely that the 12,000 Mwe plants to be built and operated after 1985, will be largely nuclear, if possible, with maybe some capacity of alternate sources, now in development in the country, including hydro from a proposed Mediterranean-Dead Sea canal (about 400 m height difference), pumped storage, shale oil, solar ponds. In view of the acute water shortage in the country, it is likely that between one third and one half of the 12,0OO Mwe plants will have to be dual-purpose plants, for power production and water desalination. As a preparation for this stage, a 10 million gallon per day desalination unit, Israeli designed and built, the so-called Horizontal-Tube-Multi-Effect (H.T.M.E.) aluminum tube plant, will be attached to an existing 50 Mwe oil-fuelled turbine and scheduled to be in operation in 1981 at Ashdod on the Mediterranean Sea as a Joint Israel - U.S.A. project. Several identical 1O MGD modules will form in the future the desalination plant to be attached to nuclear dual-purpose reactors. Fuel fabrication, starting possibly with imported enriched UF6 of nuclear fuel following the first LOAD, is contemplated to be made in the country. The desalination plants are intended to be 1O0% locally made. It is besides conceivable that the day will come when it will be nessary to connect the Red Sea and the Mediterranean by another canal, so that by the year 2000 and in the third millenium the two seas will be connected by two waterways -the Suez canal and the Israeli canal. (B.G.)
HYDRATING THE PLANET THROUGH BUSINESS INNOVATION: A STUDY OF ISRAEL'S WATER INDUSTRY
Nirenberg, Lawrence
2009-01-01
The goal of this paper is to analyse Israel?s water industry and explore global export opportunities. The first section outlines the development of Israel?s water industry through a historical, ideological and political scan of the country. The Key Success Factors that made Israel?s water management successful are identified at the end of the section. The second part of the paper conducts an industry analysis using Porter?s 5-force analysis plus government. The analysis identifies the threats...
Gadjiev, S A
2001-01-01
Scattering amplitude of fermions and bosons in the ladder approximation at high energies is investigated. For the imaginary part of the scattering amplitude the set of Bethe-Salpeter type integral equations is constructed. Solutions of this set in the Regge asymptotic form are found. The impact of mass parameters on the behavior of the amplitude at high energies is studied.
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.``
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.
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.
Einstein before Israel Zionist icon or iconoclast?
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...
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.
Strange hadronic stellar matter within the Brueckner-Bethe-Goldstone theory
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%.
Nuclear matter spectral function in the Bethe-Brueckner-Goldstone approach
Energy Technology Data Exchange (ETDEWEB)
Baldo, M.; Lo Monaco, L. [Dipartimento di Fisica dell' Universita di Catania, INFN, via S. Sofia 64, 95123, Catania (Italy)
2003-06-01
The microscopic many-body theory of the Nuclear Equation of State is discussed in the framework of the Bethe-Brueckner-Goldstone method. The expansion is extended up to the three hole-line diagrams contribution. Within the same scheme, the hole spectral function is calculated in nuclear matter to assess the relevance of nucleon-nucleon short-range correlations. The calculation is carried out by using several nucleon-nucleon realistic interactions. Results are compared with other approaches based on variational methods and transport theory. Discrepancies appear in the high-energy region, which is sensitive to short-range correlations, and are due to the different many-body treatment more than to the specific NN interaction used. Both nuclear matter Equation of State and spectral function appear to be dominated by two-body correlations. (orig.)
Mass of Y(3940) in Bethe-Salpeter equation for quarks
Energy Technology Data Exchange (ETDEWEB)
Chen, Xiaozhao [Shandong University of Science and Technology, Department of Foundational Courses, Taian (China); Lue, Xiaofu [Sichuan University, Department of Physics, Chengdu (China); The Chinese Academy of Sciences, Institute of Theoretical Physics, Beijing (China); CCAST (World Laboratory), Beijing (China)
2015-03-01
The general form of the Bethe-Salpeter wave functions for the bound states composed of two vector fields of arbitrary spin and definite parity is corrected. Using the revised general formalism, we investigate the observed Y(3940) state, which is considered as a molecule state consisting of D{sup *0} anti D{sup *0}. Though the attractive potential between D{sup *0} and anti D{sup *0} including one light meson (σ, π, ω, ρ) exchange is considered, we find that in our approach the contribution from one-π exchange is equal to zero and consider SU(3) symmetry breaking. The obtained mass of Y(3940) is consistent with the experimental value. (orig.)
Nuclear magnetic polarizability and the slope of the Thomas-Reiche-Kuhn-Levinger-Bethe sum rule
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.
All-loop Bethe ansatz equations for AdS3/CFT2
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.
All-loop Bethe ansatz equations for AdS3/CFT2
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.
The algebraic Bethe ansatz for rational braid-monoid lattice models
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.
Analysis of quantum spin models on hyperbolic lattices and Bethe lattice
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.
Maggio, Emanuele; Kresse, Georg
2016-06-01
The correlation energy of the homogeneous electron gas is evaluated by solving the Bethe-Salpeter equation (BSE) beyond the Tamm-Dancoff approximation for the electronic polarization propagator. The BSE is expected to improve on the random-phase approximation, owing to the inclusion of exchange diagrams. For instance, since the BSE reduces in second order to Møller-Plesset perturbation theory, it is self-interaction free in second order. Results for the correlation energy are compared with quantum Monte Carlo benchmarks and excellent agreement is observed. For low densities, however, we find imaginary eigenmodes in the polarization propagator. To avoid the occurrence of imaginary eigenmodes, an approximation to the BSE kernel is proposed that allows us to completely remove this issue in the low-electron-density region. We refer to this approximation as the random-phase approximation with screened exchange (RPAsX). We show that this approximation even slightly improves upon the standard BSE kernel.
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...
Born-Hartree-Bethe approximation in the theory of inelastic electron-molecule scattering
International Nuclear Information System (INIS)
We propose a new approximation in the theory of inelastic electron-atom and electron-molecule scattering. Taking into account the completeness property of atomic and molecular wavefunctions, considered in the Hartree approximation, and using Bethe's parametrization for electronic excitations during inelastic collisions via the mean excitation energy, we show that the calculation of the inelastic total integral cross-sections (TICS), in the framework of the first Born approximation, involves only the ground-state wavefunction. The final analytical formula obtained for the TICS, i.e. for the sum of elastic and inelastic ones, contains no adjusting parameters. Calculated TICS for electron scattering by light atoms and molecules (He, Ne, and H2) are in good agreement within the experimental data; results show asymptotic coincidence for heavier ones (Ar, Kr, Xe and N2).
Theory of x-ray absorption: a Bethe-Salpeter approach
Shirley, Eric L.
2002-03-01
First-principles calculations of x-ray absorption spectra of solids is a well-established field. The best known and most used treatments are probably those based on real-space multiple-scattering theory. Such Green's Function approaches are particular useful for incorporating electron damping effects (self-energy effects) that broaden spectral features at high electron kinetic energy. Near-edge structure can also be treated, and it can also be treated in super-cell calculations. In this talk, I will present results obtained using an alternative, reciprocal-space approach based on solving the Bethe-Salpeter equation, which is related to the Bethe-Salpeter method used to treat valence excitation signatures in optical absorption spectra. This amounts to solving the coupling equations of motion for the electron-core hole pair that is produced by x-ray absorption. Mutual localization of the electron and core hole in real space is realized by permitting the electron to exist as a wave-packet of Bloch states peaked near the core hole, governed by the excitation process and ensuing electron core-hole attraction. Because this approach permits state-of-the-art electron band structure calculations to be used to evaluate the electron wave function, this approach is particularly well suited for detailed near-edge structure. In presenting the approach and results obtained, particular attention is focused on (1) the role of the electron-hole interaction, (2) the need to deal with core-hole screening accurately, (3) the evaluation of accurate transition matrix elements between core states and Bloch states, and (4) computational-time scaling issues. This work has been done in collaboration with J.A. Soininen, J.J. Rehr, E.K. Chang, and others. This work was supported in part by the U.S. Deparment of Energy (DOE) Grant DE-FG03-97ER45623 and facilitated by the DOE Computational Materials Science Network (CMSN).
Erico Verissimo: um “pintor” brasileiro de Israel
Directory of Open Access Journals (Sweden)
Luciara Lourdes Silva de Assis
2010-03-01
Full Text Available O escritor brasileiro Erico Verissimo viajou a Israel em abril de 1966, na companhia da esposa, a convite do Ministério de Negócios Estrangeiros daquele país. As anotações feitas por Verissimo durante o percurso pelas principais cidades israelenses foram transformadas no livro Israel em abril, escrito e publicado três anos após a viagem. Juntamente com os manuscritos da obra, o escritor enviou ao seu editor uma carta, na qual afirma que sua intenção ao iniciar o livro “era ‘pintar’ Israel com a despreocupada alegria lúdica dum artista em férias”. Entretanto, no decorrer do trabalho, ao perceber que começava a fazer “perguntas perigosas” como “Que são os judeus? Uma raça? Um povo? Um conjunto de tribos unidas por uma religião comum?”, Verissimo deixou que o bom senso prevalecesse e voltou à sua “pintura”. Pretende-se, neste artigo, analisar a obra Israel em abril, verificando em que medida o olhar despreocupado do pintor se confunde com o olhar crítico do intelectual no relato de suas impressões em Israel.
Management of saline soils in Israel
International Nuclear Information System (INIS)
The main soil salinity problem in Israel is the danger of gradual salinization as a result of excessively efficient water management. Aquifer management is aimed at preventing flow of groundwater into the ocean, causing a creeping salinization at a rate of about 2 ppm per year. Successful efforts to improve irrigation efficiency brought with them the danger of salt accumulation in the soil. A ten-year monitoring programme carried out by the Irrigation Extension Service at 250 sampling sites showed that appreciable salt accumulation indeed occurred during the rainless irrigation season. However, where annual rainfall is more than about 350 mm this salt accumulation is adequately leached out of the root zone by the winter rains. Soil salinity in the autumn is typically two to three times that in the spring, a level which does not affect yields adversely. In the drier regions of the country long-term increasing soil salinity has been observed, and leaching is required. This is generally accomplished during the pre-irrigation given in the spring, whose size is determined by the rainfall amount of the preceding winter. The increasing need to utilize brackish groundwater and recycled sewage effluent requires special measures, which have so far been successful. In particular, drip irrigation with its high average soil-water potential regime and partial wetting of the soil volume has achieved high yields under adverse conditions. However, the long-term trend of water-quality deterioration is unavoidable under present conditions, and will eventually necessitate either major changes in agricultural patterns or the provision of desalinated water for dilution of the irrigation water. (author)
Medicine Among New Immigrants and Arab Minorities in Israel
Mishkin, Seymour
1965-01-01
The reaction to modern medicine and the general health of the new immigrants and Arab populations of Israel are described. The material was gathered during a threemonth visit to Israel where the author participated in the medical care of these persons. While these peoples still share many of the traditional medical superstitions and practices, the new immigrants have progressed much more during the 16 years of Israel's existence. At present over 99% of Jewish women give birth in hospital, whereas only 65% of Israeli Arabs do. The infant mortality rate among the Jews in 1963 was about 21 deaths per 1000 live births, about one-half the rate for Arabs. The importance of understanding the cultural background and social conflicts of these people as a preliminary to the provision of proper medical care is stressed. ImagesFig. 2Fig. 3Fig. 4Fig. 5Fig. 6Fig. 7 PMID:14285305
Gun utopias? Firearm access and ownership in Israel and Switzerland.
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.
Gun utopias? Firearm access and ownership in Israel and Switzerland.
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. PMID:22089893
Rickettsia africae and Candidatus Rickettsia barbariae in ticks in Israel.
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.
Young Children with Disabilities in Israel: System of Early Intervention Service Delivery
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…
77 FR 48497 - Oil and Gas Trade Mission to Israel-Clarification and Amendment
2012-08-14
... publishing this amendment to the Notice of the Oil and Gas Trade Mission to Israel, 77 FR 21748, April 11... Description and Notional Agenda sections of the Notice of the Oil and Gas Trade Mission to Israel, 77 FR 21748.... firms to Israel's rapidly expanding oil and gas market and to assist U.S. companies pursuing...
2013-11-07
..., including any individual, corporation, partnership, joint venture, association, joint stock company, trust... and conditions applicable to loan guarantees issued for the benefit of the Government of Israel on... issued for the benefit of the Government of Israel on behalf of the State of Israel...
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.
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.
Early experiences with big data at an academic medical center.
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.
What's wrong with expert opinion?
Directory of Open Access Journals (Sweden)
Robbins RA
2014-01-01
Full Text Available No abstract available. Article truncated after 150 words. In this month's Pulmonary Journal Club Dr. Mathew reviews an article by Feuerstein et al. (1 from Beth Israel Deaconess Medical Center and Harvard Medical School published in the Mayo Clinic Proceedings (2. The authors reviewed the evidence basis for 153 interventional guidelines including 2 from the American College of Chest Physicians and the American Thoracic Society. Of the 3425 recommendations reviewed, 11% were supported by level A evidence, 42% by level B, and 48% by level C. These numbers are very close to the results published by Lee and Vielemeyer (3 for the Infectious Disease Society of America guidelines where only 14% of the guidelines were based on level A evidence and 55% by level C. So what's wrong with the majority of guidelines based on expert opinion? After all, these are experts in the field and it can be argued that most of these opinions are probably right ...
Institute of Scientific and Technical Information of China (English)
无
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.
Massless Lüscher terms and the limitations of the AdS3 asymptotic Bethe ansatz
Abbott, Michael C.; Aniceto, Inês
2016-05-01
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 three-dimensional anti-de Sitter (AdS3 ) space, as we demonstrate here by studying Lüscher F-terms with a massless particle running in the loop. We apply this to the classic test of Hernández and López, in which the s u (2 ) sector Bethe equations (including the one-loop dressing phase) should match the semiclassical string theory result for a circular spinning string. These calculations do not agree in AdS3×S3×T4 , and we show that the sum of all massless Lüscher F-terms can reproduce the difference.
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.
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.
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.
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.
Energy Technology Data Exchange (ETDEWEB)
Choudhury, A.G.; Chowdhury, A.R. [Jadavpur Univ., Calcutta (India)
1996-08-01
Intertwining relations for the quantum R-matrix of the SU{sub p,q}(2) invariant spin chain are obtained and the corresponding face model is deduced. An important difference is seen to arise due to the asymmetry generated by the parameters p and q, which leads to a asymmetric face model. An algebraic Bethe ansatz is set up and solved with the help of these intertwining vectors.
Energy Technology Data Exchange (ETDEWEB)
Oelkers, N; Batchelor, M T; Bortz, M; Guan, X-W [Department of Theoretical Physics, Research School of Physical Sciences and Engineering and Mathematical Sciences Institute, The Australian National University, Canberra, ACT 0200 (Australia)
2006-02-03
We extend the exact periodic Bethe ansatz solution for one-dimensional bosons and fermions with {delta}-interaction and arbitrary internal degrees of freedom to the case of hard wall boundary conditions. We give an analysis of the ground-state properties of fermionic systems with two internal degrees of freedom, including expansions of the ground-state energy in the weak and strong coupling limits.
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.``
Maksimova A.A.
2016-01-01
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 k...
Masoero, Davide; Raimondo, Andrea; Valeri, Daniele
2016-06-01
We study the ODE/IM correspondence for ODE associated to {widehat{mathfrak{g}}}-valued connections, for a simply-laced Lie algebra {mathfrak{g}}. We prove that subdominant solutions to the ODE defined in different fundamental representations satisfy a set of quadratic equations called {Ψ}-system. This allows us to show that the generalized spectral determinants satisfy the Bethe Ansatz equations.
"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.
Changing Attitudes of High School Students in Israel toward Homosexuality
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,…
Israel Physical Society 44. annual meeting. Program and abstracts
International Nuclear Information System (INIS)
During the 1998 Annual Conference of the Israel Physical Society, various chapters were treated in parallel sessions: Physics teaching, Condensed matter, Lasers and Quantum Optics, Atomic and Nuclear physics, Particles and Fields, Statistical physics and nonlinear dynamics, Physics in industry, Plasma physics and computational physics
A new species of Smicromyrme from Israel (Hymenoptera: Mutillidae
Directory of Open Access Journals (Sweden)
Pietro Lo Cascio
2014-10-01
Full Text Available Smicromyrme bartolozzii sp. n. is described from a female specimen collected in a coastal desert of Israel. The new species is similar to S. ellipsifera (Gribodo, 1884, known for some localities of Eritrea, Ethiopia, Egypt and Djibouti. Sculpture of the pygidial plate, punctuation of the head and some morphological features of mesosoma are the main differential characters between both species.
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.
Trade opportunities for Dutch agribusiness in Turkey and Israel
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
The Militant Teacher: A Case Study in Israel.
Blum, Albert A.; And Others
1981-01-01
A study of the National Union of Teachers' officers in Israel revealed that the key indicators of militancy among teachers were sex (male), perceptions of too much centralization in the union structure, dissatisfaction with union attainment of goals, and extent of sensitivity to public hostility toward teachers. (Author/WD)
Parental Participation Fees in School Expenses in Israel
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.…
Biogas generator development in Israel gets first orders
Energy Technology Data Exchange (ETDEWEB)
1982-08-01
Having successfully demonstrated full size biogas digestion demonstration plants, Israel Kibbutz Industries Association has now procured an Italian contract worth about $330,000. Negotiations on the possible supply of additional systems are said to be in progress with interested parties in France, Mexico and the US.
The National Mentoring Program in Israel--Challenges and Achievements
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…
Teacher Education for Classroom Management in Israel: Structures and Orientations
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…
School-Based Management: Arab Education System in Israel
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…
School Counsellors' Involvement in the Process of Inclusion in Israel
Erhard, Rachel; Umanksy, Tami
2005-01-01
The purpose of the research was to identify variables affecting the attitudes and involvement of school counsellors in the inclusion of students with disabilities in regular classrooms. The sample included 220 primary and middle school counsellors in Israel. Two specially constructed questionnaires (i.e., the Involvement in Inclusion Questionnaire…
Harnessing Teacher Potential as Israel Education Curriculum Developers
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.…
Perceptions of Forgiveness among Palestinian Teachers in Israel
Nasser, Ilham; Abu-Nimer, Mohammed
2012-01-01
This article presents the results of a study conducted among Palestinian teachers in Israel to address their contextual understanding and perceptions of forgiveness. It sheds light on K-12 teachers' responses to daily cultural and social conflict situations in a Middle Eastern context. This research aims to contribute to our understanding of…
Death and Dying Anxiety among Elderly Arab Muslims in Israel
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…
Arab Women Principals' Empowerment and Leadership in Israel
Shapira, Tamar; Arar, Khalid; Azaiza, Faisal
2010-01-01
Purpose: This paper's purpose is to tell the life-stories of four women who succeeded in forging paths to senior positions as principals in Arab schools in Israel and to describe the personal, professional and sociopolitical contexts of their principalship. Design/methodology/approach: This is part of a larger research effort that explored the…
The Israel Physical Society 1997 Annual Meeting. Program and abstracts
International Nuclear Information System (INIS)
The book of program and abstracts of the 43rd meeting of the Israel physical society presents abstracts of presentations in various field of physics. Follow is the list of these fields. Astrophysics, condensed matter, laser and quantum optics, nuclear physics, particle and fields, physics in biology, physics in industry, plasma and space physics, statistical physics and nonlinear dynamics
Spousal Abuse among Immigrants from Ethiopia in Israel
Kacen, Lea
2006-01-01
This ethnographic study obtains first-hand information on spousal abuse from Ethiopian immigrants in Israel. Data include 23 interviews with male and female immigrants of various ages and 10 professionals who worked with this community as well as observations and documents. The findings, verified by participants, show that during cultural…
Pediatric telephone advice: a new medical service in Israel.
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.
Addressing a Nation's Challenge: Graduate Programs in Gerontology in Israel
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…
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 2...
Special Education in the Bedouin Community in Israel's Negev Region
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…
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.
Arab Parents' Involvement in School Reform in Israel
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…
Lack of peaceful resolution with Israel: economic cost for Palestinians
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
Pressure-velocity relations in reservoir rocks: Modified MacBeth's equation
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.
Energy Technology Data Exchange (ETDEWEB)
Modarres, M., E-mail: mmodares@ut.ac.ir [Physics Department, University of Tehran, North-Kargar Ave., 1439955961 Tehran (Iran, Islamic Republic of); Tafrihi, A.; Hatami, A. [Physics Department, University of Tehran, North-Kargar Ave., 1439955961 Tehran (Iran, Islamic Republic of)
2012-04-01
The neutron matter equation of states of the so-called Bethe homework problem (NMESB) is obtained using the (extended) lowest order constrained variational ((E) LOCV), the lowest order factorized Iwamoto-Yamada (LOF) and the Fermi (hypernetted) chain (FC (FHNC)) formalisms. The FC and the FHNC approximations are performed, using the LOCV or the ELOCV correlation function. It is shown that, if the normalization constraint is satisfied, then the NMESB results by using the LOCV, the ELOCV, the FC and the FHNC formalisms, will become close together and agree well with the corresponding FHNC calculations performed by Zabolitzky (Z) with the parameterized Krotscheck and Takahashi (KT) correlation function. It is also demonstrated that the LOF and the FC calculations, evaluated by employing a parameterized correlation function, are far from the above results, particularly at high densities. Finally, in order to test the convergence of LOF approximation, the two- and the three-body normalization factors are calculated and it is shown that in the LOF approximation, the truncation of cluster expansion after the first few leading terms is not reliable (which is well known as the Emery difficulty).
International Nuclear Information System (INIS)
The neutron matter equation of states of the so-called Bethe homework problem (NMESB) is obtained using the (extended) lowest order constrained variational ((E) LOCV), the lowest order factorized Iwamoto–Yamada (LOF) and the Fermi (hypernetted) chain (FC (FHNC)) formalisms. The FC and the FHNC approximations are performed, using the LOCV or the ELOCV correlation function. It is shown that, if the normalization constraint is satisfied, then the NMESB results by using the LOCV, the ELOCV, the FC and the FHNC formalisms, will become close together and agree well with the corresponding FHNC calculations performed by Zabolitzky (Z) with the parameterized Krotscheck and Takahashi (KT) correlation function. It is also demonstrated that the LOF and the FC calculations, evaluated by employing a parameterized correlation function, are far from the above results, particularly at high densities. Finally, in order to test the convergence of LOF approximation, the two- and the three-body normalization factors are calculated and it is shown that in the LOF approximation, the truncation of cluster expansion after the first few leading terms is not reliable (which is well known as the Emery difficulty).
Post-GW energies from an extended Bethe-Salpeter scheme
Maggio, Emanuele; Kresse, Georg
Hedin's breakthrough in many-body physics is a computationally manageable scheme to implicitly account for many-body effects thanks to the introduction of a self-energy, whose expression is known but in practice approximated by truncation at some order in the inter-particle interaction. Hedin's scheme allows the computation of quasi-particle addition and removal energies. The introduction of an added particle (or hole) to the system will trigger the formation of higher order neutral excitations (particle/hole pairs formation). The widespread GW approximation only partially accounts for these effects by replacing the bare interparticle interaction with a dressed one. Other effects are contained in the vertex function and are typically disregarded.In the present work, we move beyond the GW level by including vertex effects in the self-energy. This is implemented by expressing the self-energy in terms of the reducible two-particle scattering amplitude. The latter is related to the kernel of the Bethe-Salpeter equation and to the corresponding polarisation propagator. The proposed implementation allows us to evaluate the quality of quasi-particle spectra for a range of realistic solids and molecular systems.
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.)
Numerical Generalization of the Bethe-Weizs\\"{a}cker Mass Formula
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...
CCCP Algorithms to Minimize the Bethe free energy of 3-SAT Problem
Habibulla, Yusupjan
2014-01-01
The k-sat problem is a prototypical constraint satisfaction problem. There are many algorithms to study k-sat problem, BP algorithm is famous one of them. But BP algorithm does not converge when $\\alpha$(constraint density)is bigger than some threshold value. In this paper we use CCCP (Concave Convex Procedure) algorithm to study 3-sat problem and we get better results than BP algorithm that CCCP algorithm still converges when BP algorithm does not converge. Our work almost builds on recent results by Yuille \\cite{Yuille2002} who apply the CCCP algorithm to Bethe and Kikuchi free energies and obtained two algorithms on 2D and 3D spin glasses. Our implementation of CCCP algorithm on 3-sat problem is some different from his implementation and we have some different views about CCCP algorithm's some properties. Some difference of these maybe because of CCCP algorithm have different properties and implementation process on different problem and some others of these are related to the CCCP algorithm itself. Our wo...
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.
Mass of \\emph{Y}(4140) in Bethe-Salpeter equation for quarks
Chen, Xiaozhao; Shi, Renbin; Guo, Xiurong
2015-01-01
Using the general form of the Bethe-Salpeter wave functions for the bound states consisting of two vector fields given in our previous work, we investigate the molecular state composed of $D^{*+}_s$$D^{*-}_s$. However, for the SU(3) symmetry the component $D^{*+}_s$$D^{*-}_s$ is coupled with the other components $D^{*0}$$\\bar{D}^{*0}$ and $D^{*+}$$D^{*-}$. Then we interpret the internal structure of the observed \\emph{Y}(4140) state as a mixed state of pure molecule states $D^{*0}$$\\bar{D}^{*0}$, $D^{*+}$$D^{*-}$ and $D^{*+}_s$$D^{*-}_s$ with quantum numbers $J^P=0^+$. In this paper, the operator product expansion is used to introduce the nonperturbative contribution from the vacuum condensates into the interaction between two heavy mesons. The calculated mass of \\emph{Y}(4140) is consistent with the experimental value, and we conclude that it is a more reasonable scenario to explain the structure of Y (4140) as a mixture of pure molecule states.
Solving the inhomogeneous Bethe-Salpeter equation in Minkowski space: the zero-energy limit
Frederico, Tobias; Salmè, Giovanni; Viviani, Michele
2015-08-01
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.
Effects of the projectile electronic structure on Bethe-Bloch stopping parameters for Ag
Moussa, D.; Damache, S.; Ouichaoui, S.
2010-06-01
Energy losses of protons and alpha particles in silver have been accurately measured under the same experimental conditions over the velocity range E=(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 [6]. 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.
Many-body-QED perturbation theory: Connection to the two-electron Bethe-Salpeter equation
Lindgren, I.; Salomonson, S.; Hedendahl, D.
2005-03-01
The connection between many-body perturbation theory (MBPT) and quantum electrodynamics (QED) is reviewed for systems of two fermions in an external field. The treatment is mainly based on the recently developed covariant-evolution-operator method for QED calculations (I. Lindgren, S. Salomonson, and B. Asen. Phys. Rep. 389, 161 (2004)), which is quite similar in structure to MBPT. At the same time, this procedure is closely related to the S-matrix and Green's-function formalisms and can therefore serve as a bridge connecting various approaches. It is demonstrated that the MBPT-QED scheme, when carried to all orders, leads to a Schrodinger-like equation, equivalent to the Bethe-Salpeter (BS) equation. A Bloch equation in commutator form that can be used for an "extended" or quasi-degenerate model space is derived. This is a multi-state equation that has the same relation to the single-state BS equation as the standard Bloch equation has to the ordinary Schrodinger equation. It can be used to generate a perturbation expansion compatible with the BS equation even in the case of a quasi-degenerate model space.
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.
Hepatitis E in Israel: A nation-wide retrospective study
Erez-Granat, Ortal; Lachish, Tamar; Daudi, Nili; Shouval, Daniel; Schwartz, Eli
2016-01-01
AIM: To investigate the epidemiology, risk factors and clinical course of acute hepatitis E virus (HEV) infection in Israel, an industrialized country. METHODS: A retrospective analysis of acute HEV cases diagnosed in Israel from 1993 to 2013. Acute HEV was defined by ALT/AST elevation and a positive HEV PCR test or positive anti-HEV-IgM serology. HEV RNA was tested by quantitative reverse transcription PCR. Antibodies to HEV were tested retrospectively using an ELISA assay. HEV-RNA was sequenced using RT-PCR of ORF1 and ORF2 regions to diagnose genotype of the virus. Epidemiologic and clinical data were collected by reviewing the clinical files and through a telephone interview according to a structured questionnaire. RESULTS: Acute HEV was diagnosed in 68 patients. Among the 59 patients who gave an informed consent and were interviewed, 41% of infections were autochthonous (acquired in Israel), 44% travel-related and 15% imported by foreign workers. Autochthonous patients were mainly females (62.5%), more than half of them pregnant, 26% recalled consuming food or water in areas with poor sanitation, 44% ate non-kosher meat. Fulminant hepatitis developed in 3 patients (5%), all of them were females, two of them with post-partum infection, all acquired the disease in Israel (autochthonous). Israeli travelers with imported infection were predominantly males (73%), acquired the disease in the Indian subcontinent (81%), with 100% reporting having consumed fresh vegetables and drinks with ice cubes abroad. Six patients’ sera were tested for genotype and revealed HEV genotype 1 (all cases acquired in the Indian subcontinent). CONCLUSION: This is the first report which highlights the existence of hepatitis E as an autochthonous infection in Israel. Imported HEV originates mostly from the Indian subcontinent. PMID:27350735
The Second Demographic Transition in Israel: One for All?
Directory of Open Access Journals (Sweden)
Evgenia Bystrov
2012-08-01
Full Text Available This article explores family behaviours and attitudes in Israel over the last decades through the lens of the Second Demographic Transition (SDT. Israel is divided by religious affiliation, the level of religiosity, ethnic origin and timing of immigration. Although fertility transition to replacement level among certain societal groups has been previously shown, the question of how the transition unfolds in other domains remains open. The goal of this paper is to highlight the diversity of marital and fertility transitions and non-transitions among various groups of this heterogeneous society, and to compare Israel's transitions to European ones. The data sources which are used are cross-national large scale surveys, national representative surveys, and Population Register data. The data were disaggregated by religion, religiousness and ethnic origin. Emancipative value change, postponement of marriage, alternative living arrangements and a growing variety of fertility regimes were analyzed. A full range of pre-transitional, transitional, and post-transitional elements was found among the groups. Such sign of the SDT as growing childlessness was not found, and the spread of other features as unmarried cohabitation and non-marital childbearing was found limited. Population composition effects were isolated. It was found that the level of religiosity and the country of origin are important factors which differentiate family behaviours and attitudes. The connection between value orientation of the groups within Israel and their family behaviours is discussed. The socio-structural and institutional constraints that might impede further progression of the Second Demographic Transition in Israel are also discussed. Further research directions are suggested.
Holdren, Greg
This curriculum unit supplement for middle school and secondary teachers helps students in grades 5-12 explore Egypt and Israel, in both ancient and modern contexts. The unit supplement begins with student objectives, such as practicing map and research skills and reviewing summary information concerning historic and current interests. It provides…
Archaeological Geophysics in Israel: Past, Present and Future
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
Hans A. Bethe Prize: Neutron Stars and Core-Collapse Supernovae
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.
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.
A generalized Bethe-Weizsaecker mass formula for strange hadronic matter
International Nuclear Information System (INIS)
The Bethe-Weizsaecker nuclear mass formula is extended to strange hadronic matter composed of nucleons, lambdas and cascade hyperons. The generalized formula contains several volume and symmetry terms constrained by phenomenologically determined λ-nuclear, ξ-nuclear and λλ interaction parameters and by hyperon-hyperon (λλ, λξ, ξξ) interaction parameters suggested by One-Boson-Exchange models. We find that hypernuclei are generally unstable to λλ → ξN conversion. For strange hadronic matter, as function of the baryon number A, the line of strong-interaction stability, along which a large strangeness fraction |S|/A ∼ 0.5 - 1.1 and a low charge fraction q/A approx-lt 0.2 hold, and no fission occurs, is determined. The binding energy per baryon increases monotonically to its bulk limit, B/A → 38 MeV, |S|/A → 1.1 and q/A → 0 for the parameters adopted here assuming that the hyperon species saturate at densities similar to those of protons and neutrons in nuclei. Even in the extreme limit of vanishingly small hyperon-hyperon interaction strengths, strange hadronic matter with B/A → 15 MeV, |S|/A → 0.7 and q/A → 0 in the bulk limit should exist; the mass formula reproduces semi-quantitatively recent mean-field calculations which implicitly assumed weak hyperon-hyperon interactions
Simple polynomial approximation to modified Bethe formula low-energy electron stopping powers data
International Nuclear Information System (INIS)
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
El "régimen dual" en Israel desde 1967
Lev Grinberg
2008-01-01
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 ...
Magen David Adom--the EMS in Israel.
Ellis, Daniel Y; Sorene, Eliot
2008-01-01
Israel is a small country with a population of around 7 million. The sole EMS provider for Israel is Magen David Adom (MDA) (translated as 'Red Shield of David'). MDA also carries out the functions of a National Society (similar to the Red Cross) and provides all the blood and blood product services for the country. Nationwide, the organisation responds to over 1000 emergency calls a day and uses doctors, paramedics, emergency medical technicians and volunteers. Local geopolitics has meant that MDA has to be prepared for anything from everyday emergency calls to suicide bombings and regional wars. MDA also prides itself in being able to rapidly assemble and dispatch mobile aid teams to scenes of international disasters. Such a broad range of activities is unusual for a single EMS organisation. PMID:17767990
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.
Violence among Arab elementary school pupils in Israel.
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.
The Effectiveness of Israel's counter-terrorism strategy
Smith, Jerry D.
2005-01-01
This thesis analyzes Israeli counter-terrorism strategy and its effectiveness. Because of ongoing suicide attacks from Palestinian and other terrorist organizations, Israel will continue to have an aggressive counter-terrorism strategy. It will study how the impact of past wars, campaigns, and deadly terrorist attacks influenced the thinking of past and current leaders. By gauging the actions, and sometimes nonactions, of the international community, the Israeli government declined to become ...
Barriers to human papillomavirus vaccine acceptability in Israel.
Fisher, William A; Laniado, Hila; Shoval, Hila; Hakim, Marwan; Bornstein, Jacob
2013-11-22
Barriers to human papillomavirus (HPV) vaccine acceptability in Israel include Israel's relatively low incidence of cervical cancer; the religiously-based 80% circumcision rate in Israel, which is regarded as contributing to the lower incidence of HPV infection in the country; the fact that HPV vaccine provides immunity against only few virus types; the vaccine's high cost; and the perception that HPV transmission is associated with unacceptable sexual relations. A recent survey has demonstrated that, following media two campaigns, Israeli's level of awareness of the vaccine increased but the actual vaccination rate remained low, at approximately 10%. Survey findings also indicated that an enduring barrier to HPV vaccination is the vaccine's high cost. Recent research on a convenience sample of Israeli undergraduate women 21 to 24 years of age showed that intentions to receive HPV vaccination in the coming year were a function of women's attitudes towards getting vaccinated and their perceptions of social support for doing so. Undergraduate women who intended to be vaccinated perceived the prevention of cervical cancer, avoidance of personal health threat, and avoidance of HPV infection per se to be the advantages of undergoing HPV vaccination. Disadvantages of getting vaccinated included fear of vaccine side effects, cost of the vaccine, and newness of the vaccine, doubts about vaccines, time required to undergo multiple vaccinations, and dislike of injections. Friends', mothers' and physicians' recommendations influenced women's intentions to be vaccinated in the coming year as well. This article forms part of a regional report entitled "Comprehensive Control of HPV Infections and Related Diseases in Israel" Vaccine Volume 31, Supplement 8, 2013. Updates of the progress in the field are presented in a separate monograph entitled "Comprehensive Control of HPV Infections and Related Diseases" Vaccine Volume 30, Supplement 5, 2012. PMID:24229720
The case of pharmacist prescribing policy in Israel
Yariv, Hila
2015-01-01
Pharmacy prescribing policy in Israel has been negotiated and changed in recent years in order to improve patient treatment and access to medicines, and reduce national health insurance costs by allowing pharmacists to prescribe medications. Various stakeholders and institutions were involved in the formulation process, affecting the process while representing different motives. The complexity of pharmacy prescribing policy formulation is universal - any policy project needs, for strategic an...
Gun utopias? Firearm access and ownership in Israel and Switzerland
Rosenbaum, Janet
2011-01-01
The 2011 attempted assassination of a US representative renewed the national gun control debate. Gun advocates claim that mass-casualty events are mitigated and deterred with three policies: (1) permissive gun laws, (2) widespread gun ownership, (3) encouragement of armed civilians who can intercept shooters, and 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 m...
Palaeomagnetism of greigite bearing sediments from the Dead Sea, Israel
Ute Frank; Norbert Nowaczyk; Jörg F.W. Negendank
2007-01-01
Detailed magnetostratigraphic investigations were carried out on five sediment cores obtained from three sites on the northwestern shore of the Dead Sea, Israel. The sediments are heterogeneous, composed of fine clastic layers alternating with authigenic aragonite. The magnetic remanence is carried by Ti-magnetite and greigite, reflecting a detrital as well as an authigenic phase. Directions of the characteristic remanent magnetization were obtained from stepwise AF-demagnetization of the nat...
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.
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.
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.
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.
Tourism and Terror: a Case Study: Israel 1948-2012
Directory of Open Access Journals (Sweden)
Erik H. Cohen
2014-11-01
Full Text Available Israel is a popular tourist destination which has by afflicted by varying levels of terrorism against civilians over the course of its history. A longitudinal analysis of data pertaining to tourism and terrorism is undertaken to examine how terrorism affects patterns of tourism. It is found that on the macro-level, tourism to Israel continues to grow although it experiences periodic declines corresponding with times of high terrorist activity. National and religious subpopulations of tourists react differently terrorism at the destination. Overall, Jews are proportionally more likely than non-Jews to continue to visit Israel during times of conflict, but this varies among Diaspora communities. Moreover, among US Jewish tourist, the strongly religious populations represented a greater percentage of visitors during years of high terrorism. This preliminary analysis explores how internal structural features of the Jewish community (such as Jewish educational settings and family ties to Israelis, external factors of the home country (such as anti-Semitism or the economic situation and national and cultural value orientation affect tourism patterns. The impact of these factors on tourism deserves continued research.
The Influence of the European Friends of Israel on the Members of the European Parliament
Yıldız, Uğur Burç
2014-01-01
This article investigates how and why the European Friends of Israel, the most powerful pro-Israel lobby in Brussels, has worked to influence members of the European Parliament. It puts that the European Friends of Israel's lobbying activities have composed of arranging meetings with senior Israeli politicians and bureaucrats, organizing both policy and public conferences, taking policy initiatives and organizing trips for missions. Within the framework of these activities, the European Frien...
Immigrant Adjustment in Israel: Literacy and Fluency in Hebrew and Earnings
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...
All-electron Bethe-Salpeter calculations for shallow-core x-ray absorption near-edge structures
Olovsson, W.; Tanaka, I.; Mizoguchi, T.; Puschnig, P.; Ambrosch-Draxl, C.
2009-01-01
X-ray absorption near-edge structure spectra are calculated by fully solving the electron/core-hole Bethe-Salpeter equation (BSE) in an all-electron framework. We study transitions from shallow core states, including the Mg L2,3 edge in MgO, the Li K edge in the Li halides LiF, LiCl, LiBr, and LiI, as well as Li2O. We illustrate the advantage of the many-body approach over a core-hole supercell calculation. Both schemes lead to strongly bound excitons, but the nonlocal treatment of the electr...
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.)
Sinky, Hussein Mohammed
The latest advances in radiation oncology emphasizes the importance of the theory of energy loss of charged particles through matter. Since the development of the Bethe-Bloch stopping power for heavy charged incident particles in 1930, many corrections have been proposed to improve this equation's theoretical approximation. The region of applicability of this formula, with respect to the velocity and the charge of the incident particle as well as the characteristics of the target, is restricted by the validity of the approximation adopted. One of the major unsolved problems is the relativistic treatment of the inner-shell electrons for medium and heavy target elements. The stopping power theory treats atomic electrons non-relativistically for these targets which put serious limitation on the theory because the basic sum rules on which the theory relies are not amenable to vigorous relativistic generalization as pointed out by Fano. To solve this problem we assume completeness by employing the Dirac Hamiltonian, and then present a semi-relativistic approach to order v 2/c2 following the Foldy-Wouthuysen-Transformation (FWT) to exclude the contributions from the negative-energy states. To establish this goal we developed a very elegant, practical, and accurate step-by-step procedure using Baker-Hausdroff Lemma to do the FWT to any desired order for any functions of coordinate or momentum operator, or to any entire functions of both coordinate and momentum operators. We applied this procedure to general function of position where the result is then applied to find the TRK and Bethe sum rules by using semirelativistic Hamiltonian. This procedure can be used to find any desired sum rule by doing more computation relations of the transformed Hamiltonian of the system with the transformed function of position. For example, Sk sum rule will require k times commutation relations to be calculated. The resulting Bethe sum rule relativistic correction is then used to find the
Abramovitch-Dahan, C.; Beit-Yannai, E.; Ben-Shabat, S.; Abu-Ghanem, Y.; Amitai, Y; Abush, H.; Kohn, Y.; Kanyas, K; Hamdan, A; Almog, M.; Gurkiewicz, M.; Amar, S; Ovadia, O.; Blanaru, M.; Reshef, A.
2008-01-01
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 usually during December. At this annual meetings, the senior Israeli neurobiologists, their teams, and their gra...
Web-based description of the space radiation environment using the Bethe-Bloch model
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
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.
Anna Pantelia
2013-01-01
2 October 2013 - Israel Ambassador to the United Nations Office and other International Organizations at Geneva E. Manor on the occasion of the inauguration of the "Israel at CERN" Industrial Exhibition with CERN Director-General R. Heuer.
International Nuclear Information System (INIS)
The program presented here is restricted to the electron-hydrogen problem; however it is trivial to modify for use with any target which can be represented as a single electron outside a closed shell further many of the subroutines can be equally well applied to the scattering of an electron from any neutral system. Given the channel analysis the Bethe Reactance matrix elements are calculated for the specified L-range LMIN.LE.L.LE.LMAX, unitarised cross sections produced and the Burgess sum rules applied to calculate the cross sections in the weak coupling Bethe approximation for L.GE.LMAX. (orig./HSI)
Druze Linguistic Landscape in Israel: Indexicality of New Ethnolinguistic Identity Boundaries
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.…
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…
Assessing the Impact of Ongoing National Terror: Social Workers in Israel
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…
A Critical Look at Psychological Testing in Israel and Comparisons with Its European Neighbors
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…
Pinson, Halleli; Agbaria, Ayman K.
2015-01-01
Similar to other national contexts, in Israel since the 1980s we have witnessed the emergence of neo-liberal policies in education. However, very little attention has been given to the ways in which they affect the school level and even less attention has been given to the impact of these policy changes on Arab schools in Israel. This article…
Multiculturalità ottomana e scrittori italiani da Saul Israel a Miro Silvera e Daniel Fishman
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
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.
19 CFR 102.22 - Rules of origin for textile and apparel products of Israel.
2010-04-01
... operations; or (v) Dyeing and/or printing of fabrics or yarns. (d) Results of origin determination. If Israel... has undergone in Israel prior to importation into the United States any of the following: (i) Dyeing of fabric and printing when accompanied by two or more of the following finishing...
77 FR 38584 - Oil and Gas Trade Mission to Israel-Clarification and Amendment
2012-06-28
... publishing this amendment to the Notice of the Oil and Gas Trade Mission to Israel, 77 FR 21748, April 11... reasons stated above, the Oil section of the Notice of the Oil and Gas Trade Mission to Israel, 77 FR... of Meged 6-14 drillings. ``Delek Energy Provides Update on the Drilling at Leviathan 1 Well.''...
Lights, Cameras, Action Research!--Moviemaking as a Pedagogy for Constructivist Israel Education
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…
Southward Migration Season: New Arab Teachers from North Move to Southern Israel
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…
Vision, Curriculum, and Pedagogical Content Knowledge in the Preparation of Israel Educators
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…
International Nuclear Information System (INIS)
This is the book of abstracts of the 45th annual meeting of the Israel Physical Society. Some of the subjects are: condensed matter; atomic and nuclear physics; quantum mechanics; particles and fields; quantum optics and plasma physics
"Hello pacifist" War Resisters in Israel's First Decade
Marcella Simoni
2013-01-01
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 Is...
Shadow on the steps : time measurement in ancient Israel
Miano, David Ringo
2006-01-01
Many historians and biblical scholars have attempted to make sense of the data found in the Hebrew Bible in order to reconstruct the time measuring systems that were in use in ancient Israel. Some have been more successful than others, but all who have tackled the problem have had difficulties in understanding the systems employed. The usual approach is to ignore the fact that the Bible is a collection of various writings from various times and places and to gather all of the chronological da...
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
Health in Israel: patterns of equality and inequality.
Shuval, J T
1990-01-01
While Israel does not have a nationalized health care system, 94.5% of its population is covered by comprehensive health insurance which includes curative and preventive ambulatory care as well as hospitalization. There is formal equality in access, distribution, and quality of the health services; nevertheless, there are pockets of deprivation that affect certain segments of the population. The paper focuses on three topics: (a) structure of the health care delivery system in terms of coverage, geographical and social distribution, and the public/private balance of the services; (b) processes of health care delivery in terms of utilization and quality; (c) health outcomes in terms of mortality, morbidity, health behavior, and disease vulnerability. Inequality in Israel appears to be structured in terms of six dimensions: coverage of health insurance, distribution of health services, the balance of public and private sectors of health services, utilization of existing services, quality of health services, and health outcomes as expressed by mortality, morbidity, health behavior and risk factors. Only two types of health care are not covered by the general health insurance: (a) dental care, and (b) long-term nursing care. Given the small area of Israel there are striking differences in the geographic distribution of health personnel of various types. There is evidence for gaps between needs and institutional services for many elderly who are on waiting lists for institutionalization. The ratio of primary care physicians to population is 1:2326 in development towns and 1:1852 in the older more established veteran communities. Kibbutzim, which are also located in large part in geographically remote areas, enjoy high quality health services and are not characterized by low ratios of health care personnel. In 1968-69, 6% of those insured by the sick funds purchased services at least once from a private physician, while in 1975-76 this figure rose to 32%. As in other
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.
Israel's Quadrant: Weeping, Laughing, and the Measures of the Stars
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
Plants used for the treatment of diabetes in Israel.
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.
2011-07-15
... TRADE REPRESENTATIVE Petition Under Section 302 on the U.S.-Israel Free Trade Agreement; Decision Not To Initiate Investigation AGENCY: Office of the United States Trade Representative. ACTION: Decision not to... Government of Israel during the negotiation in the 1980s of the U.S.-Israel Free Trade Agreement...
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.
Full Text Available ... 19, 2009 Welcome to this "OR Live" Webcast presentation premiering from Beth Israel Medical Center in New ... Thank you for watching this "OR Live" Webcast presentation. From Beth Israel Medical Center in New York ...
Full Text Available ... Louis, St. Louis, MO, 05/11/2011) Male Infertility Vasectomy Reversal (Beth Israel Medical Center, New York, ... Louis, St. Louis, MO, 05/11/2011) Male Infertility Vasectomy Reversal (Beth Israel Medical Center, New York, ...
Minimally Invasive Treatment for Lung Cancer
Full Text Available ... presentation, premiering from Beth Israel Medical Center in New York City. During the program, it’s easy for ... at the Beth Israel Medical Center in Manhattan, New York City, as well as the chief of ...
Full Text Available Vasectomy Reversal Beth Israel Medical Center, New York, NY February 19, 2009 Welcome to this "OR Live" Webcast presentation premiering from Beth Israel Medical Center in New York City. ...
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, a...
Epidemiological changes of respiratory syncytial virus (RSV infections in Israel.
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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.
Asbestos exposure in Israel: findings, issues and needs.
Richter, E D
1984-02-01
In Israel, since the 1950s, at least several thousand workers, their wives and children, and possibly many others, have been or still may be exposed to hazardous amounts of airborne asbestos fibers. These are found both in asbestos-based industries (asbestos cement, textiles and brake linings) and trades with asbestos exposure (construction, shipyard repair, boiler maintenance, insulation work). These people are at increased risk for disability or illness, or for premature death from asbestosis, from lung cancer, from exacerbation of preexisting respiratory disease (especially if they smoke), from mesothelioma, from gastrointestinal cancer, and from other malignancies. Although there has been progress, much still has to be done in the areas of legislation, standard setting, exposure control, technology, surveillance, smoking cessation, and medical care and follow-up. Compensation is needed to care for those workers currently or previously exposed, as well as for their families and others at risk. A national policy for protecting and caring for those formerly or currently exposed is indicated by the review of the situation in Israel. PMID:6368466
Rethinking the sustainability of Israel's irrigation practices in the Drylands.
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.
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.
The Strong Decays of Orbitally Excited $B^{*}_{sJ}$ Mesons by Improved Bethe-Salpeter Method
Wang, Zhi-Hui; Wang, Guo-Li; Fu, Hui-Feng; Jiang, Yue
2012-01-01
We calculate the masses and the strong decays of orbitally excited states $B_{s0}$, $B'_{s1}$, $B_{s1}$ and $B_{s2}$ by the improved Bethe-Salpeter method. The predicted masses of $B_{s0}$ and $B'_{s1}$ are $M_{B_{s0}}=5.723\\pm0.280 {\\rm GeV}$, $M_{B'_{s1}}=5.774\\pm0.330 {\\rm GeV}$. We calculate the isospin symmetry violating decay processes $B_{s0}\\to B_s \\pi$ and $B'_{s1}\\to B_s^* \\pi$ through $\\pi^0-\\eta$ mixing and get small widths. Considering the uncertainties of the masses, for $B_{s0}...
Bethe-Salpeter calculation of optical-absorption spectra of In2O3 and Ga2O3
Varley, Joel B.; Schleife, André
2015-02-01
Transparent conducting oxides keep attracting strong scientific interest not only due to their promising potential for ‘transparent electronics’ applications but also due to their intriguing optical absorption characteristics. Materials such as In2O3 and Ga2O3 have complicated unit cells and, consequently, are interesting systems for studying the physics of excitons and anisotropy of optical absorption. Since currently no experimental data is available, for instance, for their dielectric functions across a large photon-energy range, we employ modern first-principles computational approaches based on many-body perturbation theory to provide theoretical-spectroscopy results. Using the Bethe-Salpeter framework, we compute dielectric functions and we compare to spectra computed without excitonic effects. We find that the electron-hole interaction strongly modifies the spectra and we discuss the anisotropy of optical absorption that we find for Ga2O3 in relation to existing theoretical and experimental data.
Ammi, H.; Zemih, R.; Mammeri, S.; Allab, M.
2005-04-01
Recent stopping power measurements in thin polymeric films have been performed for protons of 0.4-3.5 MeV energies using the indirect transmission technique [H. Ammi, S. Mammeri, M. Chekirine, B. Bouzid, M. Allab, Nucl. Instr. and Meth. B 198 (2002) 5]. Experimental stopping data have been analyzed with the modified Bethe-Bloch formula and the mean excitation energies I have been then extracted from the data. Resulting values for each thin film are 76 ± 1 eV in Mylar, 70.8 ± 1 eV in Makrofol, 82.2 ± 1.2 eV in LR-115 and 55.4 ± 1 eV in Polypropylene. The I-extracted values are compared to those IB calculated by using the Bragg's rule.
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.
[The organization of Jewish dentists in pre-Israel Palestine].
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. PMID:27480009
From dumping to sanitary landfills - solid waste management in Israel
International Nuclear Information System (INIS)
To address the problem of solid waste in Israel, the Ministry of the Environment has formulated a policy based on integrated waste management. The policy calls for reduction of waste at source, reuse, recycling (including composting), waste-to-energy technologies, and landfilling. Due to the implementation of this policy, all the large dumps were closed, state-of-the art landfills were built, and recovery rates have increased from 3% in the beginning of the 1990s to almost 20% in 2003. More than 95% of the municipal solid waste is disposed and treated in an environmentally sound manner - in comparison to a mere 10% just a decade ago. The policy was implemented utilizing both enforcement and financial support ('stick and carrot' approach)
Identity and security in the competition for power in Israel
Directory of Open Access Journals (Sweden)
Fernando Navarro Muñoz
2012-04-01
Full Text Available The language of security has immediate effects; it constitutes a speech act. By using the language of security, an actor reclaims the use of extraordinary media in order to deal with the threats that it presents to public opinion; this is called securitisation. However, security is not always objective, and sometimes the interests of specific sectors in their competition for power are concealed behind the argument of general interest. Starting from a concept of enlarged security, we propose a review of the concept of societal security as described by Barry Buzan and Ole Waever, which suggests a security based on the identity of communities, and we do so by focusing on the experience of Israel, where security and identity go hand-in-hand in the discourse. We also add a proposal from the sociology of power: the discourse of security is just another resource in the competition for power.
[The organization of Jewish dentists in pre-Israel Palestine].
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.
"Signs of honor" among Russian inmates in Israel's prisons.
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.
El colapso del proceso de paz palestino-israelí
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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.
Solutions of Conformal Israel-Stewart Relativistic Viscous Fluid Dynamics
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.
[Oral medicine in Israel: Current status and future directions].
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.
ACCURACY AND RELIABILITY ASSESSMENT OF GLAS MEASUREMENTS OVER ISRAEL
Directory of Open Access Journals (Sweden)
Z. Shtain
2012-09-01
Full Text Available Availability of spaceborne laser data on a global scale motivates evaluation of their quality as a means to improve large scale terrain models or to identify changes over time. One prominent spaceborne system is the Geoscience Laser Altimeter System (GLAS mounted on board the Ice Cloud and land Elevation Satellite (ICESat whose objectives were to track elevation changes of the Greenland and Antarctica's glaciers, but topographic information on other regions has been acquired as well. As the ICESat mission is the first to offer high-standard spaceborne laser derived topographic information, this paper evaluates its data quality. To that end, a large set of laser returns over Israel has been utilized and evaluated against a wide spectrum of data as a reference.
Solutions of conformal Israel-Stewart relativistic viscous fluid dynamics
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.
School violence in Israel: findings of a national survey.
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.
Likely failure of electricity deregulation: Explanation with application to Israel
International Nuclear Information System (INIS)
This paper presents a simple analytical model to compare electricity prices under regulation and deregulation. A deregulated electricity market cannot have too many producers because they will not be able to recover their investment costs. Nor can it have too few producers because the resulting market price will exceed the regulated rate. Constrained by the financial viability of privately owned generators and the policy goal of unregulated market price not exceeding the regulated rate, the set of feasible numbers of producers in the competitive market is very small, and at times empty. The small set of feasible numbers implies the likely failure of electricity deregulation, precisely because the post-reform number of producer is highly unlikely an element of the set. We verify this theoretical prediction using data applicable to Israel. (author)
Trends of Thyroid Cancer in Israel: 1980–2012
Directory of Open Access Journals (Sweden)
Lital Keinan-Boker
2016-01-01
Full Text Available Objectives: Thyroid cancer incidence is increasing worldwide, while mortality from thyroid cancer is stable or decreasing. Consequently, survival rates are rising. We describe time trends in the incidence, mortality, and 5-year survival of thyroid cancer in Israel in 1980–2012, in light of the global trends. Methods: Israel National Cancer Registry database provided information regarding thyroid cancer incidence and vital status, which enabled computation of survival rates. The Central Bureau of Statistics database provided information on thyroid cancer mortality. Incidence and mortality rates were age-adjusted and presented by population group (Jews/Arabs and gender. Relative 5-year survival rates which account for the general population survival in the corresponding time period were presented by population group and gender. Joinpoint analyses were used to assess incidence trends over time. Results: In 1980–2012 significant increases in the incidence of thyroid cancer were observed, with an annual percent change (APC range of 3.98–6.93, driven almost entirely by papillary carcinoma (APCs 5.75–8.86, while rates of other types of thyroid cancer remained stable or decreased. Furthermore, higher rates of early detection were noted. In 1980–2012, a modest reduction in thyroid cancer mortality was observed in Jewish women (APC −1.07 with no substantial change in Jewish men. The 5-year relative survival after thyroid cancer diagnosis has increased to ≥90% in both population groups and both genders. Conclusions: The Israeli secular trends of thyroid cancer incidence (increasing, mortality (mostly stable, and survival (modestly increasing closely follow reported global trends.
Trends of Thyroid Cancer in Israel: 1980–2012
Keinan-Boker, Lital; Silverman, Barbara G.
2016-01-01
Objectives: Thyroid cancer incidence is increasing worldwide, while mortality from thyroid cancer is stable or decreasing. Consequently, survival rates are rising. We describe time trends in the incidence, mortality, and 5-year survival of thyroid cancer in Israel in 1980–2012, in light of the global trends. Methods: Israel National Cancer Registry database provided information regarding thyroid cancer incidence and vital status, which enabled computation of survival rates. The Central Bureau of Statistics database provided information on thyroid cancer mortality. Incidence and mortality rates were age-adjusted and presented by population group (Jews/Arabs) and gender. Relative 5-year survival rates which account for the general population survival in the corresponding time period were presented by population group and gender. Joinpoint analyses were used to assess incidence trends over time. Results: In 1980–2012 significant increases in the incidence of thyroid cancer were observed, with an annual percent change (APC) range of 3.98–6.93, driven almost entirely by papillary carcinoma (APCs 5.75–8.86), while rates of other types of thyroid cancer remained stable or decreased. Furthermore, higher rates of early detection were noted. In 1980–2012, a modest reduction in thyroid cancer mortality was observed in Jewish women (APC −1.07) with no substantial change in Jewish men. The 5-year relative survival after thyroid cancer diagnosis has increased to ≥90% in both population groups and both genders. Conclusions: The Israeli secular trends of thyroid cancer incidence (increasing), mortality (mostly stable), and survival (modestly increasing) closely follow reported global trends. PMID:26886958
Characterization of a novel potyvirus isolated from maize in Israel.
Seifers, D L; Salomon, R; Marie-Jeanne, V; Alliot, B; Signoret, P; Haber, S; Loboda, A; Ens, W; She, Y M; Standing, K G
2000-05-01
A potyvirus (proposed name of Zea mosaic virus [ZeMV]) isolated from maize in Israel was analyzed by serology, sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) of capsid proteins, symptomatology, and sequencing. Parts of the nuclear inclusion b, coat protein, and 3' regions were sequenced; the amino acid sequence of ZeMV capsid was determined by time-of-flight mass spectrometry (TOFMS). The results of these analyses were compared with those of similar analyses of the following potyviruses: Maize dwarf mosaic virus (MDMV), Sugarcane mosaic virus strain MDB (SCMV-MDB), Johnsongrass mosaic virus(JGMV), Sorghum mosaic virus (SrMV), and an isolate of MDMV from Israel. Indirect enzyme-linked immunosorbent assay using ZeMV antiserum detected only ZeMV, and reciprocal tests using MDMV, JGMV, or SrMV antisera failed to detect ZeMV. ZeMV cross-reacted weakly when SCMV-MDB antiserum was used. The mass of ZeMV capsid was determined to be 36,810 Da by SDS-PAGE and 34,216 Da by TOFMS. The ZeMV systemically infected johnsongrass (Sorghum halepense), but did not infect oat (Avena sativa), pearl millet (Pennisetum glaucum), barley (Hordeum vulgare), or rye (Secale cereale). Necrosis was caused in 19 sorghum lines by SrMV, in 15 by ZeMV, in 14 by MDMV, and in 5 by JGMV and SCMV-MDB. The nucleic acid and amino acid sequences of ZeMV clearly showed that it is not a strain of JGMV, MDMV, SCMV, or SrMV.
Salt enrichment of municipal sewage: New prevention approaches in Israel
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.
Mycotoxins in corn and wheat silage in Israel.
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.
4. International symposium on analysis and detection of explosives, Jerusalem (Israel)
International Nuclear Information System (INIS)
From all the presentations given at the 4. International Symposium on Analysis and Detection of Explosives (September 7-10, 1992, Jerusalem, Israel), three were considered in INIS scope and separately indexed
Marketing or strategy? Defining the best approach to expand the anesthesiology workforce in Israel.
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.
Iisrael paneb ise piirid paika, kui vaja / Yitzhak ben Israel ; interv. Sten A. Hankewitz
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
78 FR 1825 - Importation of Fresh Barhi Dates From Israel Into the United States
2013-01-09
... importation of fresh dates of the cultivar Barhi from Israel into the United States. Based on that analysis... dactylifera L.) of the cultivar Barhi to be imported into the United States. Currently, fresh Barhi dates...
Technological development on food irradiation in Israel over the past two decades
International Nuclear Information System (INIS)
The effects of irradiation on post-harvest disease and senescence of fruit and vegetables are discussed. Developments with regard to pilot irradiators and the status of clearances and further petitions for irradiated food in Israel are mentioned
Socialization of Health Professionals in Israel: Early Sources of Congruence and Differentiation
Shuval, Judith T.
1975-01-01
In the longitudinal study reported here a comparison was made of changes in basic professional orientations of students during the first three years of professional socialization in four health fields in Israel: medicine, dentistry, pharmacy, and nursing. (Editor)
Mosquito Surveillance for 15 Years Reveals High Genetic Diversity Among West Nile Viruses in Israel.
Lustig, Yaniv; Hindiyeh, Musa; Orshan, Laor; Weiss, Leah; Koren, Ravit; Katz-Likvornik, Shiri; Zadka, Hila; Glatman-Freedman, Aharona; Mendelson, Ella; Shulman, Lester M
2016-04-01
West Nile Virus (WNV) is endemic in Israel and has been the cause of several outbreaks in recent years. In 2000, a countrywide mosquito survey was established to monitor WNV activity and characterize viral genotypes in Israel. We analyzed data from 7135 pools containing 277 186 mosquitoes collected over the past 15 years and, here, report partial sequences of WNV genomes obtained from 102 of the 336 positive mosquito pools. Phylogenetic analysis demonstrated that cluster 4 and the Mediterranean and Eastern European subtypes of cluster 2 within WNV lineage 1 circulated in Israel, as did WNV lineage 2, highlighting a high genetic diversity of WNV genotypes in our region. As a major crossroads for bird migration between Africa and Eurasia and with a long history of human infection, Israel serves as a resource hub for WNV in Africa and Eurasia and provides valuable information on WNV circulation in these regions. PMID:26597260
The troubled relationship between Israel and the European Union: an empirical explanation
Lavoie, Patrick V.
2015-01-01
Approved for public release; distribution is unlimited A peaceful resolution to the Arab-Israeli Conflict has eluded the international system for sixty-seven years. As time passes, insoluble physical and political conditions in the region risk the achievement of a lasting peace. Standing in the way is the European Union’s (EU) tempestuous relationship with Israel. In order to forge a peaceful settlement of the conflict an understanding of EU foreign policy toward Israel is necessary. This ...
Development of community health services for the arab village population in Israel
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R.A. Stockler
1983-09-01
Full Text Available With the proclamation of the State of Israel in 1948 the war began between Israel and her neighbours and the health services for the entire population were at a minimum. Among the Arab population where such services did exist, the personnel - doctors, nurses, teachers - fled; those in Jerusalem went to Jordan and in the North, Haifa was the point of departure for Lebanon and other countries (Mizrahi 1981, Ron 1981.
Divorce and immigration: the social integration of immigrant divorcees in Israel.
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.
National asthma observational survey of severe asthmatics in Israel: the no-air study
Izbicki Gabriel; Grosman Anna; Weiler Zeev; Shulimzon Tiberiu; Laxer Uri; Fink Gershon
2012-01-01
Abstract Background Asthma is considered a global public health issue requiring a significant medical expenditure as a result of its high prevalence and the low rate of disease control. Objective This is the first nationwide survey of severe asthma patients carried out in Israel. In this study we aimed to assess health resources utilization, compliance with treatment and disease-control in a subgroup of patients with severe asthma in Israel. Material and method One hundred and twenty-three pa...
Dirac Relaxation of the Israel Junction Conditions: Unified Randall-Sundrum Brane Theory
Davidson, Aharon; Gurwich, Ilya
2006-01-01
Following Dirac's brane variation prescription, the brane must not be deformed during the variation process, or else the linearity of the variation may be lost. Alternatively, the variation of the brane is done, in a special Dirac frame, by varying the bulk coordinate system itself. Imposing appropriate Dirac style boundary conditions on the constrained 'sandwiched' gravitational action, we show how Israel junction conditions get relaxed, but remarkably, all solutions of the original Israel e...
Shosh Shahrabani; Uri Benzion
2010-01-01
The study examined the factors affecting the decision to be vaccinated against influenza among employees in Israel. The research, conducted in 2007/2008, included 616 employees aged 18−65 at various workplaces in Israel, among them companies that offered their employees influenza vaccination. The research questionnaire included socio-demographic characteristics, and the Health Belief Model principles. The results show that the significant factors affecting vaccination compliance include a vac...
Views of health system policymakers on the role of research in health policymaking in Israel
Ellen, Moriah E; Horowitz, Einav; Vaknin, Sharona; Lavis, John N
2016-01-01
Background The use of research evidence in health policymaking is an international challenge. Health systems, including that of Israel, are usually characterized by scarce resources and the necessity to make rapid policy decisions. Knowledge transfer and exchange (KTE) has emerged as a paradigm to start bridging the “know-do” gap. The purpose of this study was to explore the views of health system policymakers and senior executives involved in the policy development process in Israel regardin...
Reducing disparities in mammography-use in a multicultural population in Israel
Friedman Nurit; Baron-Epel Orna; Lernau Omri
2009-01-01
Abstract Background In the past mammography-use has been reported to be low in Israel compared to other western countries. The objectives of this study were (1) to assess the increase in mammography-use during the years 2002 to 2007 in four population groups in Maccabi Healthcare Services (MHS), Israel: non-immigrant non-ultraorthodox, ultraorthodox, and immigrant Jewish women and Arab women; (2) to assess ethnic and socioeconomic disparities in mammography-use. Methods A random telephone sur...
Divorce and immigration: the social integration of immigrant divorcees in Israel.
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. PMID:12314714
Amro, Ahmad; Schönian, Gabriele; Al-Sharabati, Mohamed Barakat; Azmi, Kifaya; Nasereddin, Abedelmajeed; Abdeen, Ziad; Schnur, Lionel F; Baneth, Gad; Jaffe, Charles L; Kuhls, Katrin
2009-04-01
Multilocus microsatellite typing (MLMT) was used to investigate the genetic variation among 44 Israeli and Palestinian strains of L. infantum isolated from infected dogs and human cases to determine their population structure and to compare them with strains isolated from different European countries. Most of the Israeli and Palestinian strains had their own individual MLMT profiles; a few shared the same profile. A Bayesian model-based approach and phylogenetic reconstructions based on genetic distances inferred two main populations that were significantly different from the European strains: population A, containing 16 strains from places in the West Bank and 11 strains from central Israel;and population B, containing 7 strains from northern Israel, 9 from central Israel, and one Palestinian strain from the Jenin District.Geographically distributed sub-populations were detected within population B. These results demonstrate similar disease dynamics in Israel and the Palestinian Authority. The re-emergence of VL in the case of population A is more likely owing to increased dog and human contact with sylvatic cycles of parasitic infection rather than to recent introduction from the older foci of northern Israel. The latter scenario could be true for population B found in few foci of Central Israel. PMID:19399967
The tiger beetles (Coleoptera, Carabidae, Cicindelinae) of Israel and adjacent lands.
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.
Gaind, Vaibhav
Fluorescence resonance energy transfer (FRET) has found many applications in in vitro imaging as an indicator of molecular activity. However, till now, in vivo FRET imaging has been restricted to near-surface multiphoton microscopy. Optical diffusion tomography (ODT) is an emerging tool for deep tissue imaging. In this work, FRET was incorporated in an ODT framework, thereby allowing FRET to be applied in deep tissue imaging. Using simulations and tissue phantom and small animal imaging experiments, the possibility of imaging molecular activity on the nanometer scale using macroscopic measurements is demonstrated. The diffusion equation model is limited to regions of high scatter and low absorption. The Bethe-Salpeter equation has been used extensively to explain various scattering phenomena and is more fundamental than the Boltzmann transport equation. In this work, the Bethe-Salpeter equation has been investigated for modeling photon transport in the non-diffusive regime.
Bruneval, Fabien; Hamed, Samia M.; Neaton, Jeffrey B.
2015-01-01
The predictive power of the ab initio Bethe-Salpeter equation (BSE) approach, rigorously based on many-body Green's function theory but incorporating information from density functional theory, has already been demonstrated for the optical gaps and spectra of solid-state systems. Interest in photoactive hybrid organic/inorganic systems has recently increased, and so has the use of the BSE for computing neutral excitations of organic molecules. However, no systematic benchmarks of the BSE for ...
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.
An electrified dust storm over the Negev desert, Israel
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.
Bethe-Salpeter wave functions of $\\eta_c(2S)$ and $\\psi(2S)$ states from full lattice QCD
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...
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).
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...
Castro-Alvaredo, Olalla; Doyon, Benjamin; Hoogeveen, Marianne
2013-01-01
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 D. Bernard and B. Doyon. The steady states are built by connecting homogeneously two infinite halves of the system thermalized at different temperatures $T_l$, $T_r$, and waiting for a long time. We evaluate the current $J(T_l,T_r)$ using the exact QFT density matrix describing these non-equilibrium steady states and using Al.B. 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-...
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
Surface deformation along the Carmel Fault System, Israel
Reinking, Joerg; Smit-Philipp, Hillrich; Even-Tzur, Gilad
2011-10-01
The existing knowledge about the recent crustal deformations along the Carmel Fault in Northern Israel which passes the city of Haifa is to a certain degree ambiguous. Depending on geological, geophysical or geodetic sources the movement rates and senses range from 1 mm/yr sinistral up to 4 mm/yr dextral. In this paper we analyze GPS data from a regional network observed between 1999 and 2009 and derive global and regional velocities for 23 sites along the fault. The regional site velocities were estimated with respect to a local datum that was defined by a stable cluster of sites on one side of the fault and the horizontal velocity field shows deformations of up to 4.5 mm/yr dextral. In combination with an S-transformation the site velocities were used to estimate the parameters of a dislocation model based on elastic half space theory. We compare the results with expectations from slip rate analysis of seismicity parameters. In addition the resulting fault slip field is used to derive a fault-related velocity field.
A Transitional Gundi (Rodentia: Ctenodactylidae from the Miocene of Israel.
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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.
Achalasia in central Israel, 1973-83: clinical aspects.
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.
Anaphylaxis in Israel: experience with 92 hospitalized children.
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.
Adolescent health care education and training: insights from Israel.
Kerem, Nogah C; Hardoff, Daniel
2016-08-01
There is a growing need for health care professionals to extend their knowledge in adolescent health care. Formal training curricula in adolescent medicine have been established in the United States, Canada, and Australia, yet many other countries have developed shorter training programs to enable interested physicians to further pursue knowledge and practical experience in delivering improved quality health care for adolescents. The Israeli experience in building an infrastructure that allows students and physicians to learn about adolescent medicine and to train in the field is described. It includes a series of lectures and seminars for medical students during medical school and at the clinical rotations in pediatric wards; the development of hospital-based and community-based multidisciplinary adolescent health services where residents can practice adolescent health care; a 3-year diploma course in adolescent medicine for specialists in pediatrics and family medicine; mini courses in adolescent medicine for pediatricians and family practitioners working in community settings; and a simulated patient-based program regarding communication with adolescents, aimed for all professional levels - medical students, residents, and specialists. This infrastructure has been developed to create a leading group of physicians, who are able to operate adolescent clinics and to teach adolescent medicine. Recently, a formal fellowship program in adolescent medicine has been approved by the Scientific Council of the Israel Medical Association. The Israeli experience described here could be applied in countries, where formal training programs in adolescent health care are not yet established. PMID:27341557
Comparative seroepidemiology of diphtheria in six European countries and Israel.
di Giovine, P; Kafatos, G; Nardone, A; Andrews, N; Ölander, R M; Alfarone, G; Broughton, K; Cohen, D; Kriz, B; Mikova, I; O'Flanagan, D; Schneider, F; Selga, I; Valinsky, L; Velicko, I; Karacs, I; Pebody, R; von Hunolstein, C
2013-01-01
Serological surveys for diphtheria were conducted in six European countries including Czech Republic, Hungary, Ireland, Latvia, Luxembourg, Slovakia and one country outside Europe, Israel. For each country, a nationally representative population sample was collected across the entire age range and was tested for antibodies to diphtheria toxin. Although each national laboratory used its preferred assay, the results were all standardized to those of the in vitro neutralization test and expressed in international units (IU) which allowed comparative analyses to be performed. The results showed that increasing age is related to a gradual increase in seronegative subjects (<0·01 IU/ml of diphtheria antitoxin antibodies). This may reflect waning immunity following childhood vaccination without repeated booster vaccinations in adults. Differences in seronegativity were also found according to gender. In subjects aged 1-19 years, geometric mean titres of antitoxin are clearly related to the different vaccination schedules used in the participating countries. Although clinical disease remains rare, the susceptibility to diphtheria observed in these serosurveys highlights the importance of strengthened surveillance. PMID:22361223
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).
Economic Aspects of the Food Irradiation Programme in Israel
International Nuclear Information System (INIS)
The economics of many developing countries are based on agriculture, with semi-tropical fruits as the predominant crops. The harvest and shelf-life periods are brief because of the hot and humid climate. Refrigerated storage is underdeveloped or expensive. Economically important markets are distant. The economics of food irradiation must be surveyed on a national scale at the outset of any ambitious technological feasibility study programme. This must be followed by detailed economic feasibility studies as the programme progresses. Such a technological-economic survey of radiation-preserved agricultural produce was made in Israel in July 1965. All items which, potentially,could benefit from irradiation (fruits and vegetables, fodder, cereals and cereal products, fish, meat, poultry and poultry produce) were examined. Crop sizes and their values for 1962-63 and 1968-69 (based on Ministry of Agriculture data) were considered. Irradiation costs were estimated on the basis of available and extrapolated data for small irradiators in the growth areas and for large irradiators in port or along main highways. Surface treatment by electron accelerators and bulk treatment of 60Co, 137Cs or X-ray sources were considered. This survey was useful in formulating the programme for detailed technological and economic feasibility studies of individual items and in forecasting research activities and commercial applications for the period up to 1971. Preliminary results with sprout prevention in irradiated potatoes justified detailed economic surveys of the potato and onion commercial set-up as it is to-day in comparison to a modified set-up comprising several variants of combined irradiation and controlled temperature storage installations. The suggested set-up would reduce the expenditure for storage and handling from 15% to about 8% of the total crop value, the savings representing a net return of about 24% on the investment. This detailed economic survey on potatoes and onions
Survey of intravitreal injection techniques among retina specialists in Israel
Directory of Open Access Journals (Sweden)
Segal O
2016-06-01
Full Text Available Ori Segal,1,2 Yael Segal-Trivitz,1,3 Arie Y Nemet,1,2 Noa Geffen,1,2 Ronit Nesher,1,2 Michael Mimouni4 1Department of Ophthalmology, Meir Medical Center, Kfar Saba, 2The Sackler School of Medicine, Tel Aviv University, Tel Aviv, 3Department of Psychiatry, Geha Psychiatric Hospital, Petah Tikva, 4Department of Ophthalmology, Rambam Health Care Campus, Haifa, Israel Purpose: The purpose of this study was to describe antivascular endothelial growth factor intravitreal injection techniques of retinal specialists in order to establish a cornerstone for future practice guidelines. Methods: All members of the Israeli Retina Society were contacted by email to complete an anonymous, 19-question, Internet-based survey regarding their intravitreal injection techniques. Results: Overall, 66% (52/79 completed the survey. Most (98% do not instruct patients to discontinue anticoagulant therapy and 92% prescribe treatment for patients in the waiting room. Three quarters wear sterile gloves and prepare the patient in the supine position. A majority (71% use sterile surgical draping. All respondents apply topical analgesics and a majority (69% measure the distance from the limbus to the injection site. A minority (21% displace the conjunctiva prior to injection. A majority of the survey participants use a 30-gauge needle and the most common quadrant for injection is superotemporal (33%. Less than half routinely assess postinjection optic nerve perfusion (44%. A majority (92% apply prophylactic antibiotics immediately after the injection. Conclusion: The majority of retina specialists perform intravitreal injections similarly. However, a relatively large minority performs this procedure differently. Due to the extremely low percentage of complications, it seems as though such differences do not increase the risk. However, more evidence-based medicine, a cornerstone for practice guidelines, is required in order to identify the intravitreal injection techniques
First description of Bartonella bovis in cattle herds in Israel.
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. PMID:25096531
Health promotion teams' effectiveness: a structural perspective from Israel.
Drach-Zahavy, Anat; Baron-Epel, Orna
2006-09-01
This study addressed the question of how to structure coalitions in order to increase their engagement in multiple strategies for health promotion and consequently to improve their effectiveness. Three structural variables were chosen: (i) coalition's heterogeneity, captured by the professional diversity of its members; (ii) coalition's configuration, defined as the way members were involved in the coalition: full- or part-cycle membership, full- or part-time assignment, and core or peripheral membership; and (iii) coalition's contractual collaborations with external professionals. A large non-profit network of community centers served as the setting for this study. The sample consisted of 37 coordinators of local coalitions for health promotion in Israel. The study's design was a cross-sectional survey. Data were collected by a multimethod (semistructured interviews, self reported questionnaires and administrative data) approach. Effectiveness was assessed by a self-report questionnaire administrated to coalition coordinators. Engagements in multistrategies as well as structural variables were measured by semistructured interviews with coalition coordinators. Results demonstrated that while a homogeneous, bounded structure seemed to promote the implementation of health education programs, a more flexible coalition configuration with frequent use of professionals contributed more to working by multiple strategies and improved coalition's effectiveness. In addition, the use of external professionals promoted action for a healthier environment, but did not add to empowering the community. The results contribute to shifting the conception of a coalition as a tightly bounded, well-defined, stable entity to that of a more fluid and permeable structure interacting with an external environment. These findings highlight the importance of incorporating structural considerations into the management of coalitions and are discussed in light of the potential costs and benefits
Atmospheric predictors for major floods in the Negev Desert, Israel
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.
Sinkhole formation and subsidence along the Dead Sea coast, Israel
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.
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…
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 (...
International Nuclear Information System (INIS)
The Director General of the International Atomic Energy Agency has received a letter dated 13 July 2004 from the Permanent Mission of Israel providing information on Israel's nuclear export policies and practices. As requested by the Permanent Mission, the letter and document attached to it are reproduced herein for the information of Member States
Nutritional deficiencies in the pediatric age group in a multicultural developed country, Israel.
Haimi, Motti; Lerner, Aaron
2014-05-16
Nutrient deficiencies are prevalent worldwide. Diseases and morbid conditions have been described to result from nutritional deficiencies. It is essential to address nutrient deficiencies as these may lead to chronic long-term health problems such as rickets, iron deficiency anemia, goiter, obesity, coronary heart disease, type 2 diabetes, stroke, cancer and osteoporosis. In the present review we surveyed the extent and severity of nutritional deficiencies in Israel through a selective and comprehensive Medline review of previous reports and studies performed during the last 40 years. Israeli populations have multiple nutritional deficiencies, including iron, calcium, zinc, folic acid, and vitamins B12, C, D and E, spanning all age groups, several minorities, and specific regions. In Israel, some of the nutrients are mandatorily implemented and many of them are implemented voluntarily by local industries. We suggest ways to prevent and treat the nutritional deficiencies, as a step to promote food fortification in Israel.
Spotted fever group rickettsiae in ticks collected from wild animals in Israel.
Keysary, Avi; Eremeeva, Marina E; Leitner, Moshe; Din, Adi Beth; Wikswo, Mary E; Mumcuoglu, Kosta Y; Inbar, Moshe; Wallach, Arian D; Shanas, Uri; King, Roni; Waner, Trevor
2011-11-01
We report molecular evidence for the presence of spotted fever group rickettsiae (SFGR) in ticks collected from roe deer, addax, red foxes, and wild boars in Israel. Rickettsia aeschlimannii was detected in Hyalomma marginatum and Hyalomma detritum while Rickettsia massiliae was present in Rhipicephalus turanicus ticks. Furthermore, a novel uncultured SFGR was detected in Haemaphysalis adleri and Haemaphysalis parva ticks from golden jackals. The pathogenicity of the novel SFGR for humans is unknown; however, the presence of multiple SFGR agents should be considered when serological surveillance data from Israel are interpreted because of significant antigenic cross-reactivity among Rickettsia. The epidemiology and ecology of SFGR in Israel appear to be more complicated than was previously believed. PMID:22049050
Law and bioethics in Israel: between liberal ethical values and Jewish religious norms.
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.
On the viability of the truncated Israel-Stewart theory in cosmology
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.
The Genetics of Bene Israel from India Reveals Both Substantial Jewish and Indian Ancestry.
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.
Presence of antibotulinum neurotoxin antibodies in selected wild canids in Israel.
Steinman, Amir; Millet, Neta; Frenkel, Chana; King, Roni; Shpigel, Nahum Y
2007-07-01
Serum samples from 35 golden jackals (Canis aureus syriacus), eight wolves (Canis lupus), and four red foxes (Vulpes vulpes) from various regions of Israel were collected during the years 2001-04 and tested for antibodies to Clostridium botulinum neurotoxin (BoNT) types C and D. Antibodies against BoNT types C and D were detected in 10 (29%) and in 3 (9%) of 35 golden jackals, respectively, using enzyme-linked immunosorbent assay. This report describes detection of anti BoNT antibodies in wild canids other than coyotes (Canis latrans) for the first time and demonstrates that C. botulinum type C is prevalent in Israel. PMID:17699099
The impact of ongoing national terror on the community of hospital nurses in Israel.
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.
Pluralist social constraints on the development of a health care system: the case of Israel.
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.
On the Dressing Factors, Bethe Equations and Yangian Symmetry of Strings on AdS3 x S3 x T4
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.
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.)
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.
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
Factors Affecting Accent Acquisition: The Case of Russian Immigrants in Israel
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.…
A Comparative Study of Advertising in Israel and the United States.
Krohn, Franklin B.; Brahms, Robert
A study compared advertising media usage, advertising reach, and consumers' attitudes toward advertising in Israel and the United States. The study used data gathered from an Israeli survey of 1,600 consumers and an American survey of 1,500 consumers. The findings revealed that the press was the dominant advertising medium in both countries, in…
Global Argonauts: Returnees and Diaspora as Sources of Innovation in China and Israel
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…
The Acculturation of Adult African Refugees Language Learners in Israel: An Ethnographic Study
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…
Turning Points in the Lives of Two Pioneer Arab Women Principals in Israel
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…
Seroprevalence of Anaplasma phagocytophilum among healthy dogs and horses in Israel.
Levi, O; Waner, T; Baneth, G; Keysary, A; Bruchim, Y; Silverman, J; Harrus, S
2006-03-01
The presence of reacting antibodies to Anaplasma phagocytophilum has previously been demonstrated in Israel, both in humans and the golden jackal (Canis aureus syriacus). This study was undertaken to determine the seroprevalence of A. phagocytophilum antibodies in two additional potential hosts, domestic dogs and horses in order to investigate the possibility of exposure to the organism in Israel. Of 195 dogs tested, 9% were seroreactive with A. phagocytophilum antigen and 30% were seroreactive to Ehrlichia canis. Twenty-nine percent of the dogs seropositive for E. canis were also reactive to A. phagocytophilum. Two dogs had immunofluorescence antibody (IFA) antibody titres for A. phagocytophilum greater than E. canis. The equine serological survey (n = 300) revealed no seroreactive horses. The results presented in this study suggest that dogs in Israel could have been accidentally exposed to A. phagocytophilum, for example by ticks carried on migrating birds, however, the possibility of cross-reaction with E. canis should also be considered. In spite of the high prevalence of ticks on horses in Israel during the summer months, no evidence for exposure to A. phagocytophilum was apparent. PMID:16626404
School Health Promotion Policies and Adolescent Risk Behaviors in Israel: A Multilevel Analysis
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…
Zimmerman, Lynn W.
2010-01-01
This study examines whether and how online discussions used in learning situations help to develop interactive intercultural communication. Undergraduate university students in the US, Taiwan, and Israel engaged in an online discussion about gender stereotypes. This study examines their perceptions of the interactions. There were 31 undergraduate…
Identification, host range and infection process of Meloidogyne marylandi from turf grass in Israel
Oka, Y.; Karssen, G.; Mor, M.
2003-01-01
A population of a root-knot nematode species was isolated from Zoysia japonica in a turf nursery in Israel. Measurements and morphology of the second-stage juveniles and adult females, including perineal pattern, indicated this nematode to be Meloidogyne marylandi. In addition, esterase (Est) and ma
Not Just Location: Attitudes and Functioning of Arab Local Education Administrators in Israel
Arar, Khalid; Abu-Asbah, Khaled
2013-01-01
Purpose: This paper aims to provide useful insights into educational under-achievement among Palestinian Arab citizens of Israel (PAI), investigating the perceptions of local educational administrators (LEAs) towards the education system and its "modus vivendi", to uncover difficulties and suggest directions to improve the processes and…
Ethiopian Emerging Adult Immigrants in Israel: Coping with Discrimination and Racism
Walsh, Sophie D.; Tuval-Mashiach, Rivka
2012-01-01
Experiences of discrimination and racism and individual coping strategies were examined among 22 emerging adult Ethiopian immigrants in Israel. In-depth interviews explored the way they perceive, understand, respond to, and cope with experiences of discrimination. Qualitative analysis identified an initial contrast between those interviewees who…
Building a Learning Readiness Program for the Mainstreamed Visually Impaired Child in Israel.
Wohl, Aryeh; Eshet, Shari
1985-01-01
The paper describes the beginnings of a total developmental language learning system for mainstreamed visually impaired children in Israel. The readiness program is divided into five sections: auditory perception and discrimination, tactile perception and discrimination and fine motor coordination, gross motor coordination, body image awareness,…
Letter to the Director General from the Resident Representative of Israel
International Nuclear Information System (INIS)
The document reproduces the letter dated 30 May 1989 to the Director General from the Resident Representative of Israel in response to the statement from 5 April 1989 of the Official Spokesman of the Iraqi Ministry of Foreign Affairs (circulated in document IAEA-INFCIRC-362)
Attitudes and Beliefs Associated with Mammography in a Multiethnic Population in Israel
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…
Risk Groups in Exposure to Terror: The Case of Israel's Citizens
Feniger, Yariv; Yuchtman-Yaar, Ephraim
2010-01-01
This research addresses a largely ignored question in the study of terror: who are its likely victims? An answer was sought through analysis of comprehensive data on civilian victims of terror in Israel from 1993 through 2003. The chances of being killed in seemingly random terror attacks were found unequally distributed in Israeli society, but…
Societal Responses to Endemic Terror: Evidence from Driving Behavior in Israel
Stecklov, Guy; Goldstein, Joshua R.
2010-01-01
In this article, using data on traffic volume and fatal accident rates in Israel from 2001 to 2004--a period spanning much of the Second Intifada--we examine the population-level responses to endemic terror to uncover whether societies become habituated so that the response weakens following repeated attacks or whether they become increasingly…
Flum, Hanoch; Cinamon, Rachel Gali
2011-01-01
Migration is a common phenomenon of the globalization era. In this article we explore the interplay of three foundational concepts in the migration experiences of Ethiopian Jewish immigrants in Israel: citizenship, identity and career. Through our analysis we examine the multiple layers of being an immigrant citizen. Following immigration, as…
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…
Willingness to Communicate in the Language of the Other: Jewish and Arab Students in Israel
Tannenbaum, Michal; Tahar, Limor
2008-01-01
One hundred and forty-three Jewish and Arab 6th grade children in Israel participated in this study, which explored several attitude dimensions and willingness to communicate (WTC) in the language of the other. Analysis of variance indicated differences between groups, with Arab children having in general more positive attitudes and higher WTC in…
Self-medication with antibiotics by a population in northern Israel
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
A palynological study of the Acheulian site of Gesher Benot Ya'aqov, Israel
van Zeist, Willem; Bottema, Sytze
2009-01-01
The results are discussed of the palynological (pollen-analytical) examination of a sediment section in the Hula Valley of northern Israel, with evidence of Acheulian occupation dated to 700,000-800,000 B.P. In general there is a fair agreement between the palynological data and the wood remains ide
Mr Nissim Dahan, MK, Minister of Health, Israel, at the ATLAS exhibition
Laurent Guiraud
2001-01-01
Photo 01: L. to r.:Dr Jim Allaby, Dr Peter Jenni, Prof. Bracha Regev, Chief Scientist, Ministry of Health, Mr Nissim Dahan, MK, Minister of Health, Dr Boaz Lev, Director General, Ministry of Health, Dr Hans F. Hoffmann and Dr Georges Mikenberg. Photo 02: Mr Nissim Dahan, MK, Minister of Health, Israel, signing the Guest Book.
"In Your Face" Democracy: Education for Belonging and Its Challenges in Israel
Agbaria, Ayman K.; Mustafa, Muhanad; Jabareen, Yousef T.
2015-01-01
This article will juxtapose the goals and implications of two pedagogical programmes that promote education for belonging in Israel. Representing the official knowledge of the Ministry of Education, the first is the "100 Concepts in Heritage, Zionism and Democracy" curriculum. The second, which embodies the counter knowledge produced and…
Exposure to Community Violence among Arab Youth in Israel: Rates and Characteristics
Haj-Yahia, Muhammad M.; Leshem, Becky; Guterman, Neil
2011-01-01
The research explored the rates and characteristics of exposure to community violence (CV) and its relevance to several sociodemographic factors among a sample of 833 Arab youth aged 14-18 years residing in diverse residential areas in Israel. Data were collected using a self-report questionnaire. The frequency of exposure to CV during the past 12…
Ethiopian Youth in Israel: Gender-Related Alcohol Use and Related Problem Behaviour
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…