نتایج جستجو برای: crossover sign

تعداد نتایج: 85853  

Journal: :Acta orthopaedica Belgica 2008
Clément M L Werner Carol E Copeland Thomas Ruckstuhl Jeff Stromberg Burkhard Seifert Clifford H Turen

The goals of the present investigation were to identify the prevalence of acetabular dome retroversion in a mixed race population, to quantify the average amount of cross-over ratio, and to determine normative values. The presence of the cross-over sign and its overlap ratio was assessed for 2,925 hips meeting strict radiographic criteria of the pelvic radiograph. Fifty-two percent of the hips ...

Journal: :Physical review letters 2005
Bogdan Mihaila Sergio Gaudio Krastan B Blagoev Alexander V Balatsky Peter B Littlewood Darryl L Smith

We propose a new method of detecting the onset of superfluidity in a two-component ultracold fermionic gas of atoms governed by an attractive short-range interaction. By studying the two-body correlation functions we find that a measurement of the momentum distribution of the density and spin-response functions allows one to access separately the normal and anomalous densities. The change in si...

2009
Bernd-Jochen Schaefer Mathias Wagner Jochen Wambach

The phase diagram of strongly interacting matter is one of the most exciting subjects of modern particle physics. While QCD lattice calculations become more and more realistic at vanishing chemical potential, their predictive power at finite chemical potential is still very limited due to the fermion sign problem. Until now lattice calculations cannot provide insights on the existence of a poss...

2017
Chanseok Rhee Tina Le Francois J. W. Thomas Byrd Mark Glazebrook Ivan Wong

BACKGROUND Femoroacetabular impingement (FAI) is a well-recognized condition that causes hip pain and can lead to early osteoarthritis if not managed properly. With the increasing awareness and efficacy of operative treatments for pincer-type FAI, there is a need for consensus on the standardized radiographic diagnosis. PURPOSE To perform a systematic review of the evidence regarding imaging ...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2004
azzedine abbaci

the thermodynamic properties of fluids can be predicted using the global equations of state. among these thermodynamic properties of fluids, we choose the densities of the liquid and vapor phases. this paper considers the application of the crossover model to the vapor-liquid rectilinear diameter of sulfurhexafluoride. we also present a comparison of the crossover model equation with the experi...

Journal: :Physical review letters 2010
A O Sboychakov Sergey Savel'ev A L Rakhmanov Franco Nori

We study the escape rate of flux quanta in a long Josephson junction having an asymmetric spatial inhomogeneous critical current density. Such a junction can behave as a ratchet when driven by an ac current in the presence of a magnetic field. This rectification gives rise to a dc voltage V(dc) across the junction. The usual approach of particlelike tunneling cannot describe this rectification,...

2014
Cristián Barrientos Jorge Diaz Julian Brañes Felipe Chaparro Maximiliano Barahona Alfonso Salazar Jaime Hinzpeter

Methods: We prospectively recruited asymptomatic patients with no history or symptoms of hip pathology who underwent abdomen-pelvis computed tomography (CT) for a nonorthopaedic indication. The acetabular and femoral parameters related to FAI were measured. Results: We studied 101 subjects (202 hips) with a mean age of 36.8 ± 14.4 years. The mean center-edge angle was 39.4 ± 7.2 . The crossover...

2016
Zhuo Wang R. L. Samaraweera C. Reichl W. Wegscheider R. G. Mani

Electron-heating induced by a tunable, supplementary dc-current (Idc) helps to vary the observed magnetoresistance in the high mobility GaAs/AlGaAs 2D electron system. The magnetoresistance at B = 0.3 T is shown to progressively change from positive to negative with increasing Idc, yielding negative giant-magnetoresistance at the lowest temperature and highest Idc. A two-term Drude model succes...

Journal: :Chest 2011
Craig R Rackley Eric B Meltzer

www.chestpubs.org radiographs in mechanically ventilated adults: a multicentre, cluster-randomised, two-period crossover study . Lancet . 2009 ; 374 ( 9702 ): 1687 1693 . 6 . Ball CG , Kirkpatrick AW , Fox DL , et al . Are occult pneumothoraces truly occult or simply missed? J Trauma . 2006 ; 60 ( 2 ): 294 298 . 7 . Lichtenstein DA , Menu Y . A bedside ultrasound sign ruling out pneumothorax in...

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