Results 41 to 50 of about 707,975 (264)

Cosmological effective Hamiltonian from full loop quantum gravity dynamics

open access: yesPhysics Letters B, 2018
The concept of effective dynamics has proven successful in LQC, a loop-inspired quantization of cosmological spacetimes. We apply the same idea of its derivation in LQC to the full theory, by computing the expectation value of the scalar constraint with ...
Andrea Dapor, Klaus Liegener
doaj   +1 more source

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

open access: yesFEBS 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

Effective dynamics from minimizing dissipation

open access: yesPhysical Review Research
It is known that the same physical system can be described by different effective theories depending on the scale at which it is observed. In this work, we formulate a prescription for finding the unitary that best approximates the large-scale dynamics ...
Antonio F. Rotundo   +2 more
doaj   +1 more source

Integrating Complex Soil Dynamics Using the Non-equilibrium Effective Temperature

open access: yesFrontiers in Earth Science, 2020
Soil dynamics, such as aggregate turnover, play central roles in modulating global cycles of carbon, nitrogen and water. However, understanding soil dynamics, and the role they play in soil system functioning is complicated by the fact that soils ...
Vance W. Almquist, Vance W. Almquist
doaj   +1 more source

Dynamical Casimir Effect in Braneworlds

open access: yesPhysical Review Letters, 2007
misprints corrected, matches published ...
Durrer, Ruth, Ruser, Marcus
openaire   +5 more sources

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

open access: yesFEBS 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   +5 more
wiley   +1 more source

Organoids in pediatric cancer research

open access: yesFEBS Letters, EarlyView.
Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley   +1 more source

Dynamical Brazovskii Effect [PDF]

open access: yesSoft Materials, 2008
Based on Brazovskii's theory for fluctuation‐induced first-order transition, we propose a dynamical model of ordered phases such as lamellar and hexagonal phases. Analysis of the suggested nonlinear equations shows that the system is bistable when the temperature is small enough.
S. Komura, N. Shimokawa
openaire   +1 more source

Reciprocal control of viral infection and phosphoinositide dynamics

open access: yesFEBS 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

Effective Josephson dynamics in resonantly driven Bose–Einstein condensates

open access: yesNew Journal of Physics, 2013
We show that the orbital Josephson effect appears in a wide range of driven atomic Bose–Einstein condensed systems, including quantum ratchets, double wells and box potentials. We use three separate numerical methods: the Gross–Pitaevskii equation, exact
M Heimsoth   +4 more
doaj   +1 more source

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