Results 61 to 70 of about 1,122,471 (393)

Noncommutative Quantum Cosmology [PDF]

open access: yesGen.Rel.Grav. 37 (2005) 817-821, 2004
We consider noncommutative quantum cosmology in the case of the low-energy string effective theory. Exacts solutions are found and compared with the commutative case.The Noncommutative quantum cosmology is considered in the case of the low-energy string effective theory. Exacts solutions are found and compared with the commutative case.
arxiv   +1 more source

Machine learning and its applications in reliability analysis systems [PDF]

open access: yes, 1994
In this thesis, we are interested in exploring some aspects of Machine Learning (ML) and its application in the Reliability Analysis systems (RAs).
Hong, Hui-ling
core  

Datação direta e análise de paleodietas dos indivíduos da Anta de Cabeceira 4.ª (Mora, Évora)

open access: yes, 2017
The radiocarbon dating and the systematic carbon and nitrogen analysis of the three exhumed individuals from Anta de Cabeceira 4a (Mora, Evora), indicated an ancient chronology within the regional megalithic and paleodietetic patterns similar to those ...
A. Carvalho, L. Rocha
semanticscholar   +1 more source

Diamond Chemistry: Advances and Perspectives

open access: yesAngewandte Chemie International Edition, Accepted Article.
Diamond as a material has many unique properties. More recently, diamond has emerged as a material with a wide range of applications in chemistry and biology. The high intrinsic stability of diamond, coupled with the ability to modify diamond surfaces with a wide range of species via highly stable covalent linkages, provides a wealth of opportunity to ...
Nianjun Yang   +2 more
wiley   +1 more source

A liquid crystal analogue of the cosmic string [PDF]

open access: yesMod.Phys.Lett. A20 (2005) 25612566, 2005
We consider the propagation of light in a anisotropic medium with a topological line defect in the realm of geometrical optics. It is shown that the effective geometry perceived by light propagating in such medium is that of a spacial section of the cosmic string spacetime.
arxiv   +1 more source

Interdisciplinarity [2nd edition] by Joe Moran [PDF]

open access: yes, 2011
A review of 'Interdisciplinarity 2nd edition' by Joe ...
Eve, Martin Paul
core  

A Single‐Molecule Liposome Assay for Membrane Permeabilisation

open access: yesAngewandte Chemie International Edition, Accepted Article.
Cell membrane disruption is associated with numerous diseases and underlies the activity of various antimicrobial agents. The rapid screening of compounds capable of disrupting or permeabilising biological membranes is essential to the search for new therapeutic drugs.
Krzysztof Marek Bąk   +9 more
wiley   +1 more source

Linking chronic stress to insomnia symptoms in older adults: The role of stress co‐occurrence during the pandemic

open access: yesResearch in Nursing &Health, Volume 46, Issue 1, Page 68-79, February 2023., 2023
Abstract Studies examining the associations of chronic stressors with sleep health in older adults have shown conflicting results. While the COVID‐19 pandemic increased perceived stress at the population level, less is known about chronic stressors experienced by older adults in the context of the COVID‐19 pandemic and its impact on sleep health in an ...
Wan‐Chin Kuo   +4 more
wiley   +1 more source

The bound state Aharonov-Bohm effect around a cosmic string revisited [PDF]

open access: yesPhys.Lett. A361 (2007) 13-15, 2005
In this article we observe that the self-adjoint extension of the Hamiltonian of a particle moving around a shielded cosmic string gives rise to a gravitational analogue of the bound state Aharonov-Bohm effect.
arxiv   +1 more source

Global Regulator MorA Affects Virulence-Associated Protease Secretion in Pseudomonas aeruginosa PAO1

open access: yesPLoS ONE, 2015
Bacterial invasion plays a critical role in the establishment of Pseudomonas aeruginosa infection and is aided by two major virulence factors – surface appendages and secreted proteases.
Ayshwarya Ravichandran   +4 more
semanticscholar   +1 more source

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