Results 71 to 80 of about 1,237,051 (193)

Time-dependent Correlation Functions in Open Quadratic Fermionic Systems

open access: yes, 2017
We formulate and discuss explicit computation of dynamic correlation functions in open quadradic fermionic systems which are driven and dissipated by the Lindblad jump processes that are linear in canonical fermionic operators.
Kos, Pavel, Prosen, Tomaz
core   +2 more sources

The origin of compression influences geometric instabilities in bilayers [PDF]

open access: yes, 2018
Geometric instabilities in bilayered structures control the surface morphology in a wide range of biological and technical systems. Depending on the application, different mechanisms induce compressive stresses in the bilayer.
Andres, Sebastian   +2 more
core   +1 more source

Constraints on pre-big bang parameter space from CMBR anisotropies [PDF]

open access: yes, 2002
The so-called curvaton mechanism --a way to convert isocurvature perturbations into adiabatic ones-- is investigated both analytically and numerically in a pre-big bang scenario where the role of the curvaton is played by a sufficiently massive Kalb ...
Bozza, V.   +3 more
core   +3 more sources

Importancia de la fase preanalítica de la toma de muestras en la evaluación del proceso de soporte de laboratorio clínico

open access: yesEducación Médica
Resumen: Introducción: la creciente complejidad del proceso de laboratorios clínicos y el elevado número de profesionales implicados requieren una coordinación eficaz entre distintos niveles asistenciales.
Adolfo Romero-Arana   +4 more
doaj   +1 more source

Impact of Prolonged Blood Incubation and Extended Serum Storage at Room Temperature on the Human Serum Metabolome

open access: yesMetabolites, 2018
Metabolomics is a powerful technology with broad applications in life science that, like other -omics approaches, requires high-quality samples to achieve reliable results and ensure reproducibility.
Beate Kamlage   +7 more
doaj   +1 more source

Gaia astrometric science performance - post-launch predictions

open access: yes, 2014
The standard errors of the end-of-mission Gaia astrometry have been re-assessed after conclusion of the in-orbit commissioning phase of the mission. An analytical relation is provided for the parallax standard error as function of Gaia G magnitude (and V-
Antoja, T.   +2 more
core   +1 more source

Nonconformities in the pre-analytical phase identified in a public health laboratory

open access: yesJornal Brasileiro de Patologia e Medicina Laboratorial, 2020
ABSTRACT Introduction: The nonconformities detected in the pre-analytical phase of laboratory tests sent to the Central Public Health Laboratories (Lacen) culminate in the loss of epidemiological data of great importance for public health and are detrimental to health surveillance.
Souza, Roberta Kelly L.   +2 more
openaire   +3 more sources

Analytical approach to SU(2) Yang-Mills thermodynamics

open access: yes, 2004
We propose an analytical approach to SU(2) Yang-Mills thermodynamics. The existence of a macroscopic and rigid adjoint Higgs field, generated by dilute trivial-holonomy calorons at large temperature $T$ (electric phase), implies a twofold degeneracy of ...
Hofmann, Ralf
core   +2 more sources

Mitigating the risk of tube shortages: A blood collection tube validation study conducted in South Africa

open access: yesAfrican Journal of Laboratory Medicine
Background: The National Health Laboratory Service was using Becton Dickinson (BD) blood drawing tubes and, in 2021, the supplier notified customers of supply challenges, indicating a risk of global shortages.
Marizna Korf   +6 more
doaj   +1 more source

Pre-analytical issues in liquid biopsy – where do we stand?

open access: yesJournal of Laboratory Medicine, 2020
It is well documented that in the chain from sample to the result in a clinical laboratory, the pre-analytical phase is the weakest and most vulnerable link. This also holds for the use and analysis of extracellular nucleic acids.
Fleischhacker Michael, Schmidt Bernd
doaj   +1 more source

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