نتایج جستجو برای: rvb
تعداد نتایج: 166 فیلتر نتایج به سال:
FEATURES OF CHANGES IN BIOCHEMICAL INDICES IN SYNDROME MALLORY-WEISS AND RVB ESOPHAGUS WITH BLEEDING
In this paper we study the properties of vortices in two dimensional quantum antiferromagnets with spin magmitude S on a square lattice within the framework of Schwinger-boson mean-field theory. Based on a continuum description, we show that vortices are stable topological excitations in the disordered state of quantum antiferromagnets. Furthermore, we argue that vortices can be divided into tw...
In this work, we solve exactly a Kondo lattice model in the thermodynamic limit. The system consists of an electronic conduction band described by unconstrained hopping matrix elements between the lattice sites. The conducting electrons interact with a localized impurity spin at each lattice cell. We have found the exact thermody-namics, the ground state energies of the system. At T = 0, we exp...
Stress granules are mRNA-protein granules that form when translation initiation is limited, and they are related to pathological granules in various neurodegenerative diseases. Super-resolution microscopy reveals stable substructures, referred to as cores, within stress granules that can be purified. Proteomic analysis of stress granule cores reveals a dense network of protein-protein interacti...
This paper studies platform ecosystems, a novel business entity built upon a platform coordinating the interactions between suppliers and users, particularly in the IT service sectors. Borrowing words from two core firm theories resource-based view (RBV) and transaction cost view (TCV), we propose that the platform ecosystem works at the boundary between “market and hierarchy.” To show this, ...
Rotavirus G (RVG) strains have been detected in a variety of avian species, but RVG genomes have been published from only a single pigeon and two chicken strains. Two turkey RVG strains were identified and characterized, one in a hatchery with no reported health issues and the other in a hatchery with high embryo/poult mortality. The two turkey RVG strains shared only an 85.3 % nucleotide seque...
When an electronic system has strong correlations and a large spin-orbit interaction, it often exhibits a plethora of mutually competing quantum phases. How a particular quantum ground state is selected out of several possibilities is a very interesting question. However, equally fascinating is how such a quantum entangled state breaks up due to perturbation. This important question has relevan...
Extensive calculations in the short-range RVB (Resonating valence bond) subspace on both the trimerized and the regular (non-trimerized) Heisenberg model on the kagomé lattice show that short-range dimer singlets capture the specific low-energy features of both models. In the trimerized case the singlet spectrum splits into bands in which the average number of dimers lying on one type of bonds ...
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