Results 81 to 90 of about 4,596,099 (356)

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

Experimental study on interaction characteristics of explosive cracks under confining pressure and its comparison with free boundary results

Journal of Materials Research and Technology
The influence of confining pressure on the dynamic fracture mechanical behavior of deep rock masses is crucial in the exploitation of deep resources and the development of underground spaces.
Linzhi Peng, Zhongwen Yue, Xu Wang, Jun zhou   +3 more
doaj   +1 more source

Ductilityof fiber-reinforcedself-consolidatingconcreteundermulti-axial compression

, 2011
The results of 12 multi-axial compression tests performed on cylinders made of self-consolidating concrete, plain (SCC) and reinforced with steel fibers (FR-SCC), are presented.
Chiaia, Bernardino, Fantilli, Alessandro Pasquale, Vallini, Paolo   +2 more
core   +1 more source

A study of CO2 flooding on wave velocities in the Naharkatiya oil reservoir of Upper Assam Basin [PDF]

, 2017
This paper studies the compressional-wave and shear-wave velocities in the laboratory in six conventional core plugs. These plugs were obtained from a depth of more than 3000 m from the producing horizons of Naharkatiya oil reservoir of Upper Assam Basin,
Kakoty, Miranda, Subrata Borgohain Gogoi
core   +2 more sources

Mapping the evolution of mitochondrial complex I through structural variation

FEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin, Tingting Chen, James A. Letts   +2 more
wiley   +1 more source

Organoids in pediatric cancer research

FEBS 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

An experimental and numerical investigation on dynamic mechanical behavior and fracture characteristics of sandstone under active confining pressures

Geomechanics and Geophysics for Geo-Energy and Geo-Resources
This study aims to investigate the dynamic mechanical properties and failure mechanisms of red sandstone under varying strain rates and confining pressures, using a modified confining pressure split Hopkinson pressure bar system, focus on investigating ...
Sheng-Qi Yang, Ye Li, Wen-Ling Tian, Bo-Wen Sun, Zhen Zhong, Xiao-Shuang Li   +5 more
doaj   +1 more source

Stress transmission in wet granular materials

, 2006
We analyze stress transmission in wet granular media in the pendular state by means of three-dimensional molecular dynamics simulations. We show that the tensile action of capillary bonds induces a self-stressed particle network organized in two ...
Bocquet, Calvetti, Castellanos, Castellanos, Cates, Christoffersen, Coppersmith, Corwin, Cundall, Dauchot, Dippel, Erle, F. Radjaı, Fillot, Fournier, Halsey, Hecke, Herminghaus, Hornbaker, Jaeger, Jean, Knight, Kuhn, Lian, Lian, M. S. El Youssoufi, Majmudar, Mikami, Moreau, Mueth, Oda, Radja\"ı, Radja\"ı, Radja\"ı, Radja\"ı, Radja\"ı, Richefeu, Rothenburg, Roux, Schäfer, Soulié, Staron, Staron, Troadec, V. Richefeu, Willett, Yang, Youssoufi   +47 more
core   +3 more sources

Discrete element modelling of a flexible membrane for triaxial testing of granular material at high pressures [PDF]

, 2012
The discrete element method (DEM) has been used to simulate triaxial tests on a bonded material at high pressures. A key feature of the model is the use of a flexible membrane that allows the correct volumetric deformation and the true failure mode to ...
de Bono, John P., McDowell, Glenn R., Wanatowski, Dariusz   +2 more
core   +2 more sources

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