Search results for "Horn"

Greenberger-Horne-Zeilinger-state Generation in Qubit-Chains via a Single Landau-Majorana-Stückelberg-Zener π/2-pulse

2022

A protocol for generating Greenberger-Horne-Zeilinger states in a system of (Formula presented.) coupled qubits is proposed. The Hamiltonian model assumes (Formula presented.) -wise interactions between the (Formula presented.) qubits and the presence of a controllable time-dependent field acting upon one spin only. The dynamical problem is exactly solved thanks to the symmetries of the Hamiltonian model. The possibility of generating GHZ states simulating our physical scenario under both adiabatic and non-adiabatic conditions is within the reach of the experimentalists. This aspect is discussed in detail.

Volume strain, strain type and flow path in a narrow shear zone

1998

This study explores the state of finite strain and changes in the mean kinematic vorticity number, grain size, whole-rock chemistry and mineralogy across an upper amphibolite-facies shear zone in a metadiorite, northern Malawi, east-central Africa. P–T conditions during shear-zone formation and deformation were approximately 700–750 °C and 5–7 kbar and are slightly less than P–T conditions for the regional peak of metamorphism. The major rock-forming minerals, plagioclase, hornblende, biotite, and quartz, were deformed by crystal-plastic processes accompanied by, except for hornblende, dynamic recrystallization. The modal abundance of all four major rock-forming minerals shows no systematic…

TAFA4 relieves injury-induced mechanical hypersensitivity through LDL receptors and modulation of spinal A-type K+ current

2021

Pain, whether acute or persistent, is a serious medical problem worldwide. However, its management remains unsatisfactory, and new analgesic molecules are required. We show here that TAFA4 reverses inflammatory, postoperative, and spared nerve injury (SNI)-induced mechanical hypersensitivity in male and female mice. TAFA4 requires functional low-density lipoprotein receptor-related proteins (LRPs) because their inhibition by RAP (receptor-associated protein) dose-dependently abolishes its antihypersensitive actions. SNI selectively decreases A-type K+ current (IA) in spinal lamina II outer excitatory interneurons (L-IIo ExINs) and induces a concomitant increase in IA and decrease in hyperpo…

2006

The first palaeontological study of the locality of Quibas dates from the end of the 1990ties (Montoya et al., 1999), describing over 60 vertebrate taxa. One of these was a caprine assigned to Capra sp. aff. Capra alba. Recent excavations yielded new remains of this taxon, which permits a more profound study of its affinities and an assignation to Capra alba, without reservation. This assignation is based on the morphological and metrical comparison of the skulls, horn cores, dentition and metapodials from Quibas with those of Capra alba from Venta Micena (Orce Granada).

Los trabajadores de Altos Hornos de Vizcaya, Sagunto, 1961-1974 estudio de la gestión del jurado de empresa

2012

Estudio de historia social y de las relaciones laborales en la fábrica siderúrgica de Altos Hornos de Vizcaya en Sagunto durante el periodo del tardo-franquismo, concretamente entre la publicación de su primer convenio colectivo en 1961 hasta el traspaso de la fábrica a la titularidad de Altos Hornos del Mediterráneo en 1974. Estudio de las condiciones económicas y socio-laborales de estos trabajadores siderúrgicos, de cómo les afectan los cambios introducidos por el Estado y por la misma empresa; y por otro lado, cómo responden los trabajadores a estos cambios por medio de un activismo sindical que utilizó al máximo las instituciones corporativas laborales del franquismo (OSE, Jurado de Em…

Laparoscopic management of rudimentary uterine horns in patients with unicornuate uterus: a systematic review

2022

<b><i>Introduction:</i></b> Unicornuate uterus is a rare Müllerian anomaly. Its potential association with a rudimentary uterine horn can cause a diagnostic delay. The most common consequences are pelvic pain, hematometra, and endometriosis. Diagnosis of a unicornuate uterus is usually done by imaging combining ultrasound and magnetic resonance imaging. The aim of this systematic review is to assess the role of laparoscopic approach in the management of this rare condition. <b><i>Methods:</i></b> A comprehensive search was performed in PubMed, EMBASE, SCOPUS, and Web of Science databases prior to 1 May 2022 according to Preferred Reporting Ite…

Nest-site competition between bumblebees (Bombidae), social wasps (Vespidae) and cavity-nesting birds in Britain and the Western Palearctic

2015

Capsule: There is no evidence of widespread significant nest-site competition in Britain or the Western Palearctic between cavity-nesting birds and bumblebees or social wasps. Aims: To investigate competition between cavity-nesting birds and bumblebees and wasps, particularly the range-expanding Tree Bumblebee, Saxon Wasp and European Hornet in Britain, and review evidence throughout the Western Palearctic. Methods: We compared field data from English and Polish studies of tits and woodpeckers breeding in nest-boxes and/or tree holes to assess nest-site competition with bumblebees and wasps. We reviewed the literature quantifying nest-site competition between birds and these insects in the …

Zvaigžņotā Debess: 2007, Rudens

2007

Latvijas Zinātnes padome, Latvijas Universitāte

FOWLA, A Federated Architecture for Ontologies.

2015

International audience; The progress of information and communication technologies has greatly increased the quantity of data to process. Thus, managing data heterogeneity is a problem nowadays. In the 1980s, the concept of a Federated Database Architecture (FDBA) was introduced as a collection of components to unite loosely coupled federation. Semantic web technologies mitigate the data heterogeneity problem, however due to the data structure heterogeneity the integration of several ontologies is still a complex task. For tackling this problem, we propose a loosely coupled federated ontology architecture (FOWLA). Our approach allows the coexistence of various ontologies sharing common data…

A Federated Approach for Interoperating AEC/FM Ontologies

2016

International audience; Over the last few years, the benefits of applying ontologies (semantic graph modelling) for Architecture, Engineering, Construction and Facility Management (AEC/FM) industry have been recognized by several researchers and industry stakeholders. One of the main motivations is because it eases AEC data manipulation and representation. However, a research question that still remains open is how to take advantage of semantic web technologies to interoperate the AEC/FM and other ontologies in a flexible and dynamical way in order to solve data structure heterogeneity problem. Because of this, we propose in this paper to apply a rule-based federated architecture to answer …