Results 81 to 90 of about 367,624 (344)

Reciprocal control of viral infection and phosphoinositide dynamics

FEBS Letters, EarlyView.
Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
wiley   +1 more source

Review of tissue-mimicking materials for anthropomorphic modeling of arterial vessels [PDF]

Digital Diagnostics
BACKGROUND: In computed tomographic angiography, anthropomorphic specimens made of tissue-mimicking materials are used to improve the diagnosis of pathological changes in arteries.
Dariya I. Abyzova, Maria R. Kodenko
doaj   +1 more source

Big rip avoidance via black holes production

, 2009
We consider a cosmological scenario in which the expansion of the Universe is dominated by phantom dark energy and black holes which condense out of the latter component.
D. Gross, D. N. Page, D. Pavón, D. Pavón, G. Sansone, J. A. Jiménez Madrid, J. C. Fabris, J. D. Barrow, J. I. Kapusta, P. J. E. Peebles, R. R. Caldwell, S. W. Hawking, T. Piran   +12 more
core   +1 more source

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

FEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho, Shin Morioka, Junko Sasaki, Takehiko Sasaki   +3 more
wiley   +1 more source

Coupled oscillators as models of phantom and scalar field cosmologies

, 2004
We study a toy model for phantom cosmology recently introduced in the literature and consisting of two oscillators, one of which carries negative kinetic energy.
A, Helmi, A. Melchiorri, A.D. Dolgov, A.E. Motter, A.G. Riess, A.G. Riess, A.G. Riess, A.G. Riess, A.H. Guth, B.L. Nelson, C. Barcelo, C.-M. Chen, C.G. Callan, Jr., D.N. Vollick, E. Calzetta, E. Gunzig, E. Gunzig, E.E. Flanagan, F. Perrotta, I. Zlatev, I.L. Buchbinder, J.-P. Uzan, L. Bombelli, L. Parker, L. Parker, L. Parker, L. Parker, L. Parker, L. Parker, L. Parker, L.H. Ford, L.R. Abramo, M. Lakshamanan, M. Morikawa, M. Morikawa, M.A. Castagnino, M.E. Soussa, M.N.R. Wohlfarth, N. Ohta, N. Ohta, N.D. Birrell, P. Schuecker, P.H. Frampton, P.J. Steinhardt, P.K. Townsend, R. Dick, R.A. Daly, R.R. Caldwell, R.R. Caldwell, S. Bellucci, S. Blanco, S. Foster, S. Hannestad, S. Nojiri, S. Nojiri, S. Nojiri, S. Perlmutter, S. Perlmutter, S. Sonego, S.M. Carroll, T. Chiba, T. Chiba, T. Fukuyama, T.M. Rocha Filho, V. Faraoni, V. Faraoni, V.K. Onemli, Valerio Faraoni, X.H. Meng, X.H. Meng   +69 more
core   +1 more source

The anti‐CRISPR protein AcrIE8.1 inhibits the type I‐E CRISPR‐Cas system by directly binding to the Cascade subunit Cas11

FEBS Letters, EarlyView.
In this study, we present the structure of AcrIE8.1, a previously uncharacterized anti‐CRISPR protein that inhibits the type I‐E CRISPR‐Cas system. Through a combination of structural and biochemical analyses, we demonstrate that AcrIE8.1 directly binds to the Cas11 subunit of the Cascade complex to inhibit the CRISPR‐Cas system.
Young Woo Kang, Hyun Ho Park
wiley   +1 more source

An intracellular transporter mitigates the CO2‐induced decline in iron content in Arabidopsis shoots

FEBS Letters, EarlyView.
This study identifies a gene encoding a transmembrane protein, MIC, which contributes to the reduction of shoot Fe content observed in plants under elevated CO2. MIC is a putative Fe transporter localized to the Golgi and endosomal compartments. Its post‐translational regulation in roots may represent a potential target for improving plant nutrition ...
Timothy Mozzanino, Meijie Li, Cécile Fizames, Mattia Adamo, Laurence Lejay, Christian Dubos, Matthieu Platre, Antoine Martin   +7 more
wiley   +1 more source

Effective equation of state and energy conditions in phantom/tachyon inflationary cosmology perturbed by quantum effects

, 2003
We discuss the model consisting of tachyon which may have the negative kinetic energy plus scalar phantom and plus conformal quantum matter. It is demonstrated that such a model naturally admits two deSitter phases where the early universe inflation is ...
Bagla, Benaoum, Bento, Boisseau, Caldwell, Carroll, Chen, Chiba, Chiba, Chimento, Cline, Das, Diamandis, Fairbairn, Faraoni, Feinstein, Felder, Frampton, Garousi, Gibbons, Gibbons, Gibbons, Gibbons, Gibbons, Hao, Hao, Hao, Ishida, Kim, Kim, Kutasov, Leblond, Lee, Li, Luson, Majumdar, Maor, Matsuda, Mehen, Melchiorri, Moeller, Mukohyama, Nojiri, Nojiri, Nojiri, Nojiri, Okuda, Onemli, Parker, Perlmutter, Perlmutter, Riess, Sami, Schulz, Sen, Sen, Sergei D. Odintsov, Shin'ichi Nojiri, Shiu, Singh, Torres   +60 more
core   +1 more source

By dawn or dusk—how circadian timing rewrites bacterial infection outcomes

FEBS Letters, EarlyView.
The circadian clock shapes immune function, yet its influence on infection outcomes is only beginning to be understood. This review highlights how circadian timing alters host responses to the bacterial pathogens Salmonella enterica, Listeria monocytogenes, and Streptococcus pneumoniae revealing that the effectiveness of immune defense depends not only
Devons Mo, Catherine S. Palmer, Jacqueline M. Kimmey   +2 more
wiley   +1 more source

A single model of traversable wormholes supported by generalized phantom energy or Chaplygin gas

, 2009
This paper discusses a new variable equation of state parameter leading to exact solutions of the Einstein field equations describing traversable wormholes.
A.G. Riess, A.Y. Kamenshchik, F.S.N. Lobo, F.S.N. Lobo, F.S.N. Lobo, J. Sola, J. Sola, J.P.S. Lemos, M.C. Bento, M.S. Morris, O.B. Zaslavskii, P.K.F. Kuhfittig, P.K.F. Kuhfittig, Peter K. F. Kuhfittig, S.J. Perlmutter, S.V. Sushkov   +15 more
core   +1 more source