Results 61 to 70 of about 6,253,661 (292)
Averaged null energy condition from causality [PDF]
Journal of High Energy Physics, 2017 31+8 ...
Hartman, Thomas +2 more
openaire +4 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
Scientific Reports, 2021 We present evidences that defects in the spin S = 1/2 Heisenberg antiferromagnetic chain (HAFC) compound can lead to ferromagnetism by studying the magnetic and thermal properties of the newly discovered quasi-one-dimensional (1D) metal–organic framework
Zhe Wang +7 more
doaj +1 more source
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 +3 more
wiley +1 more source
Models of Charged Gravastars in f(T)-Gravity
UniverseThis study investigates three distinct charged gravastar models within the framework of fT modified gravity, considering the functional forms fT=T, fT=a+bT, and fT=T2.
Mohamed A. Bakry, Ali Eid
doaj +1 more source
Physiological Reports, 2021 Soldiers on military expeditions usually fail to compensate for the increase in energy expenditure, with potential deleterious consequences. We therefore analyzed the characteristics of energy compensation in 12 male soldiers, during a 15‐day expedition ...
Keyne Charlot +8 more
doaj +1 more source
Cosmological constraints on holographic dark energy models under the energy conditions
, 2013 We study the holographic and agegraphic dark energy models without interaction using the latest observational Hubble parameter data (OHD), the Union2.1 compilation of type Ia supernovae (SNIa), and the energy conditions.
Ma, Cong +4 more
core +1 more source
On final conditions in high energy heavy ion collisions [PDF]
, 1998 Motivated by the recent experimental observations, we discuss the freeze-out properties of the fireball created in central heavy ion collisions. We find that the freeze-out conditions, like temperature, velocity gradient near center of the fireball, are ...
Akkelin, S. V., Sinyukov, Yu. M., Xu, N.
core +1 more source
ENERGY CONDITIONS AND THEIR COSMOLOGICAL IMPLICATIONS [PDF]
COSMO-99, 2000 The energy conditions of general relativity permit one to deduce very powerful and general theorems about the behaviour of strong gravitational fields and cosmological geometries. However, the energy conditions these theorems are based on are beginning to look a lot less secure than they once seemed: (1) there are subtle quantum effects that violate ...
Visser, Matt, Barcelo, Carlos
openaire +2 more sources
Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation
FEBS Letters, EarlyView.Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe +3 more
wiley +1 more source