Results 71 to 80 of about 110,473 (324)

Model for a Universe described by a non-minimally coupled scalar field and interacting dark matter

, 2006
In this work it is investigated the evolution of a Universe where a scalar field, non-minimally coupled to space-time curvature, plays the role of quintessence and drives the Universe to a present accelerated expansion.
A.G. Riess, A.G. Riess, A.R. Liddle, C. Wetterich, D.S.M. Alves, G. Esposito-Farèse, G. M. Kremer, G.R. Farrar, I. Prigogine, J. B. Binder, J.A. Casas, J.P. Uzan, J.S. Alcaniz, L. Amendola, L. Amendola, L.R. Abramo, M. Fukugita, M. Persic, M.S. Madsen, S. Perlmutter, S.D.H. Hsu, S.M. Carroll, S.M. Carroll, T. Chiba, V. Faraoni   +24 more
core   +1 more source

Dark fluid: A complex scalar field to unify dark energy and dark matter [PDF]

Physical Review D, 2006
9 pages, 3 figures, references added, minor corrections and ...
openaire   +2 more sources

Overview of molecular signatures of senescence and associated resources: pros and cons

FEBS Open Bio, EarlyView.
Cells can enter a stress response state termed cellular senescence that is involved in various diseases and aging. Detecting these cells is challenging due to the lack of universal biomarkers. This review presents the current state of senescence identification, from biomarkers to molecular signatures, compares tools and approaches, and highlights ...
Orestis A. Ntintas, Sylvia Vagena, Pavlos Pantelis, Giorgos Theocharous, Russel Petty, Konstantinos Evangelou, Vassilis G. Gorgoulis   +6 more
wiley   +1 more source

Lepton-flavoured scalar dark matter in Dark Minimal Flavour Violation

Journal of High Energy Physics, 2023
We study a simplified model of lepton-flavoured complex scalar dark matter set up in the Dark Minimal Flavour Violation framework. In this model the Standard Model is extended by a scalar dark matter flavour triplet and a charged fermionic mediator ...
Harun Acaroğlu, Prateek Agrawal, Monika Blanke   +2 more
doaj   +1 more source

Is Sextans dwarf galaxy in a scalar field dark matter halo?

, 2014
The Bose-Einstein condensate/scalar field dark matter model, considers that the dark matter is composed by spinless-ultra-light particles which can be described by a scalar field.
Lora, V., Magana, Juan
core   +1 more source

The effect of salubrinal on the endoplasmic reticulum stress pathway in heat‐stressed spermatogonial cells in vitro

FEBS Open Bio, EarlyView.
This study investigates the protective role of salubrinal against heat‐induced endoplasmic reticulum (ER) stress in mouse spermatogenic cells (GC1 and GC2). By modulating the ER stress pathway, salubrinal alleviates cellular stress and supports spermatogenic cell survival, suggesting its potential as a therapeutic candidate for heat‐related infertility.
Suna Karadeniz Saygili, Mustafa Oztatlici, Mahmut Kemal Ozbilgin   +2 more
wiley   +1 more source

A two measure model of dark energy and dark matter

, 2012
In this work we construct a unified model of dark energy and dark matter. This is done with the following three elements: a gravitating scalar field, phi with a non-conventional kinetic term, as in the string theory tachyon; an arbitrary potential, V(phi)
Douglas Singleton, E. Bergshoeff, E. Guendelman, E. Guendelman, E.A. Lim, Eduardo Guendelman, N Yongram, S. Ansoldi, S. del Campo, Supernova Cosmology Project collaboration, Supernova Search Team collaboration, U. Alam, V. Sahni   +12 more
core   +1 more source

Dynamics of a Generalized Cosmological Scalar-Tensor Theory [PDF]

, 2002
A generalized scalar-tensor theory is investigated whose cosmological term depends on both a scalar field and its time derivative. A correspondence with solutions of five-dimensional Space-Time-Matter theory is noted. Analytic solutions are found for the
Banerjee A., JAMES M. OVERDUIN, Linde A. D., Ratra B., Sahni V., Silveira V., TAKAO FUKUI, Wesson P. S.   +7 more
core   +3 more sources

Growth Differentiation Factor 15 Elevation in the Central Nervous System Is Associated With Failure to Thrive in Alexander Disease

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Alexander disease (AxD) is a severe neurodegenerative disorder caused by gain‐of‐function mutations in the gene for GFAP, which lead to protein aggregation and a primary astrocytopathy. Symptoms vary, but failure to thrive (FTT) and frequent emesis are common and cause significant morbidity. Here we investigate GDF15, a member of the
Tracy L. Hagemann, Michelle M. Sonsalla, Cora Luzinski, Fernando Zacahua, David A. Harris, Dudley W. Lamming, Albee Messing   +6 more
wiley   +1 more source

Three fluid cosmological model using Lie and Noether symmetries

, 2011
We employ a three fluid model in order to construct a cosmological model in the Friedmann Robertson Walker flat spacetime, which contains three types of matter dark energy, dark matter and a perfect fluid with a linear equation of state.
Paliathanasis, Andronikos, Tsamparlis, Michael   +1 more
core   +1 more source