Results 41 to 50 of about 84,386 (305)

PERFECT FLUID SPACETIMES WITH HARMONIC GENERALIZED CURVATURE TENSOR [PDF]

open access: yes
We show that n-dimensional perfect fluid spacetimes with divergence-free conformal curvature tensor and constant scalar curvature are generalized RobertsonWalker (GRW) spacetimes; as a consequence a perfect fluid Yang pure space is a GRW spacetime.
Suh, Young Jin   +3 more
core   +1 more source

Longitudinal genome‐wide aneuploidy measurements in circulating cell‐free DNA to predict lack of benefit from pembrolizumab in patients with metastatic urothelial cancer

open access: yesMolecular Oncology, EarlyView.
Many patients with urothelial cancer do not benefit from treatment with pembrolizumab, while at risk of severe side effects. Changes in the levels of circulating tumor DNA early during treatment, measured by a simple and affordable assay that can be easily implemented in the clinic, can be used as a prognostic tool to identify these patients.
Youssra Salhi   +14 more
wiley   +1 more source

Isotropic singularities in shear-free perfect fluid cosmologies

open access: yes, 2000
We investigate barotropic perfect fluid cosmologies which admit an isotropic singularity. From the General Vorticity Result of Scott, it is known that these cosmologies must be irrotational. In this paper we prove, using two different methods, that if we
Scott, S. M., Ericksson, G.
core   +1 more source

Comprehensive Analysis of Bianchi Type V Model in f(R,Lm) Theory of Gravity

open access: yesEast European Journal of Physics
In this article, a homogenous Bianchi Type V cosmological model has been investigated within the framework of f(R, Lm) gravity. The solution of the field equations has been obtained by considering the special case f(R,Lm)=R/2 + Lmn, where n is free model
Prachi Agrawal   +2 more
doaj   +1 more source

The skills required for transition to university and study in biological sciences: A student perspective

open access: yesFEBS Open Bio, EarlyView.
Bioscience students were asked for their opinions on the value and teaching of skills. 204 responded that teamwork, time management and study skills are necessary to reach University, that scientific writing, research, laboratory and presentation skills are taught effectively during their studies, while other skills are gained inherently through study ...
Janella Borrell, Susan Crennell
wiley   +1 more source

Hamiltonian Theory of a Relativistic Perfect Fluid

open access: yes, 1971
The velocity-potential version of the hydrodynamics of a relativistic perfect fluid is put into Hamiltonian form by applying Dirac's method to the version's degenerate Lagrangian.
Schutz, B., Schutz, Bernard F.
core   +1 more source

YIPFα1A expression is regulated by multilayered molecular mechanisms

open access: yesFEBS Open Bio, EarlyView.
YIPFα1A, a five‐pass Golgi protein, is regulated at multiple layers. (1) Rare‐codon enrichment drives translation‐coupled mRNA decay. (2) A proximal 3′‐UTR element stabilizes mRNA. (3) A distal 3′‐UTR element included by alternate poly(A) site usage represses translation, which can be overridden by the proximal 3′‐UTR element.
Tokio Takaji   +2 more
wiley   +1 more source

Forensic Body Fluid Identification by Analysis of Multiple RNA Markers Using NanoString Technology [PDF]

open access: yesGenomics & Informatics, 2013
RNA analysis has become a reliable method of body fluid identification for forensic use. Previously, we developed a combination of four multiplex quantitative PCR (qRT-PCR) probes to discriminate four different body fluids (blood, semen, saliva, and ...
Jong-Lyul Park   +6 more
doaj   +1 more source

Perfect fluid theory and its extensions [PDF]

open access: yesJournal of Physics A: Mathematical and General, 2004
We review the canonical theory for perfect fluids, in Eulerian and Lagrangian formulations. The theory is related to a description of extended structures in higher dimensions. Internal symmetry and supersymmetry degrees of freedom are incorporated. Additional miscellaneous subjects that are covered include physical topics concerning quantization, as ...
Jackiw, R.   +3 more
openaire   +2 more sources

Exact relativistic static charged perfect fluid disks

open access: yes, 2015
Using the well-known "displace, cut and reflect" method used to generate disks from given solutions of Einstein field equations, we construct static charged disks made of perfect fluid based on the Reissner-Nordstrom solution in isotropic coordinates. We
Vogt, D, Letelier, PS
core   +1 more source

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