Results 51 to 60 of about 3,768,575 (328)

Solving the Flatness and Quasi-flatness Problems in Brans-Dicke Cosmologies with a Varying Light Speed [PDF]

, 1999
We define the flatness and quasi-flatness problems in cosmological models. We seek solutions to both problems in homogeneous and isotropic Brans-Dicke cosmologies with varying speed of light.
, , Albrecht A, Barrow J D, Barrow J D, Barrow J D, Drinkwater M J, Gott J R III, Hawking S W, John D Barrow, João Magueijo, Linde A, Linde A D, Moffat J, Moffat J, Moffat J, Nariai H, Turok N, Vilenkin A, Webb J K   +19 more
core   +2 more sources

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

FEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

Perturbative reduction of derivative order in EFT [PDF]

, 2017
Higher derivative corrections are ubiquitous in effective field theories, which seemingly introduces new degrees of freedom at successive order. This is actually an artefact of the implicit local derivative expansion defining effective field theories. We
Glavan, Dražen
core   +2 more sources

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

FEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi, Pilar Samperio Ventayol, Natalie Burkard, Nicolas Schlegel, Carmen Aguilar, Sina Bartfeld   +5 more
wiley   +1 more source

Perspectives on Theories and Methods of Structural Signal Processing

Leida xuebao, 2015
Over the past decade structural signal processing is an emerging field, which gained researchers' intensive attentions in various areas including the applied mathematics, physics, information theory, signal processing, and so on.
Li Lian-lin, Zhou Xiao-yang, Cui Tie-jun
doaj   +1 more source

Loop amplitudes in gauge theories: modern analytic approaches

, 2011
This article reviews on-shell methods for analytic computation of loop amplitudes, emphasizing techniques based on unitarity cuts. Unitarity techniques are formulated generally but have been especially useful for calculating one-loop amplitudes in ...
Anastasiou C, Anastasiou C, Badger S, Badger S, Badger S D, Badger S D, Badger S D, Berger C F Forde D, Bern Z, Bern Z, Bern Z, Bernicot C, Bjerrum-Bohr N E J, Bjerrum-Bohr N E J, Bjerrum-Bohr N E J, Boels R, Boels R, Brandhuber A, Brandhuber A, Britto R, Britto R, Cachazo F, Campbell J M, Catani S, Cheung C, del Aguila F, Dixon L J, Dunbar D C, Eden R J, Ellis R K, Ellis R K, Ettle J H, Ettle J H, Feynman R P, Feynman R P, Giele W T, Glover E W N, Glover E W N, Kilgore W B, Laporta S, Mansfield P, Mitov A, Pittau R, Quigley C, Ruth Britto, Smirnov A V   +45 more
core   +1 more source

Bifurcation Control: Theories, Methods, and Applications

International Journal of Bifurcation and Chaos in Applied Sciences and Engineering, 2000
Bifurcation control deals with modification of bifurcation characteristics of a parameterized nonlinear system by a designed control input.
Guanrong Chen, J. Moiola, Hua O. Wang
semanticscholar   +1 more source

Crosstalk between the ribosome quality control‐associated E3 ubiquitin ligases LTN1 and RNF10

FEBS Letters, EarlyView.
Loss of the E3 ligase LTN1, the ubiquitin‐like modifier UFM1, or the deubiquitinating enzyme UFSP2 disrupts endoplasmic reticulum–ribosome quality control (ER‐RQC), a pathway that removes stalled ribosomes and faulty proteins. This disruption may trigger a compensatory response to ER‐RQC defects, including increased expression of the E3 ligase RNF10 ...
Yuxi Huang, Satoshi Hashimoto, Sota Ito, Chisato Kikuguchi, Miho Hoshi, Kiyoshi Yamaguchi, Yoichi Furukawa, Toru Suzuki, Toshifumi Inada   +8 more
wiley   +1 more source

Blended Learning Using Edmodo: Students’ Performance and Attitude in Boxing During COVID-19

SAGE Open
COVID-19 has led to quarantines, isolations, and social separations worldwide. Universities use distance education and blended learning especially for practical courses.
Ahmed Hassan Rakha, Mahmoud Abdo Khalifa
doaj   +1 more source

Elena Pierazzo, «Digital Scholarly Editing. Theories, Models and Methods»

Anuario Lope de Vega: Texto, Literatura, Cultura, 2018
Reseña de Elena Pierazzo, Digital Scholarly Editing. Theories, Models and Methods, Ashgate, Farnham, 2015, 242 pp. ISBN: 9781472412119.
Gonzalo Pontón
doaj   +1 more source