Results 61 to 70 of about 2,598,216 (300)

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

Dynamic responses and damage mechanisms of low-rise reinforced concrete frame structures subjected to rockfall impacts

Journal of Asian Architecture and Building Engineering
Combined with the validations of the nonlinear material models, this study addresses the nonlinear dynamic response, damage mechanisms and failure modes of reinforced concrete frame structures under rockfall impacts, utilizing explicit dynamic analysis ...
Tao Tian, Wengao Lu, Haoran Wang
doaj   +1 more source

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

Implementation of the Quasi-Brittle Damage Model for 2024 Aluminum Alloy under Periodic Loading [PDF]

International Journal of Advanced Design and Manufacturing Technology, 2019
Damage mechanics is one of the most important parts of mechanical engineering that determines the time life for different mechanical elements. The most various models that have been provided so far in damage mechanics, are related to ductile or brittle ...
Sadegh Ghorbanhosseini, saeed yaghoubi
doaj  

Uniaxial Compression Damage Mechanical Properties and Mechanisms of Dolomite Under Deep High-Humidity Condition

Frontiers in Materials, 2022
The paper studies the uniaxial compression mechanical properties of pillars under the deep and high-humidity environment. We make the pillars cored from the −750 m mine room of Wengfu Phosphate Mine into the standard dolomite samples and test with a ...
Wei Chen, Wenqing Peng, Wen Wan, Xianqing Wang, Qiuhong Wu, Yu Zhou, Senlin Xie   +6 more
doaj   +1 more source

Cooperative mixing induced surface roughening in bilayer metals: a possible novel surface damage mechanism

, 2004
Molecular dynamics simulations have been used to study a collective atomic transport phenomenon by repeated Ar$^+$ irradiations in the Ti/Pt interfacial system. The ion-induced injection of surface atoms to the bulk, the ejection of bulk atoms to the top
Averback, Beardmore, Bringa, Buchanan, Carter, Carter, Cleri, Colla, Daw, Diaz de la Rubia, Ghaly, Gnaser, K Nordlund, Koster, M Menyhárd, Makeev, Mayr, Mayr, Menyhárd, Nordlund, Nordlund, Nordlund, P Süle, Rasmussen, Sutton, Süle   +25 more
core   +1 more source

Pitting damage levels estimation for planetary gear sets based on model simulation and grey relational analysis [PDF]

, 2011
The planetary gearbox is a critical mechanism in helicopter transmission systems. Tooth failures in planetary gear sets will cause great risk to helicopter operations.
Cheng, Zhe, Gu, Fengshou, Hu, Niaoqing, Qin, Guojun   +3 more
core   +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

Cyclin D1 Restrains Oncogene-Induced Autophagy by Regulating the AMPK-LKB1 Signaling Axis. [PDF]

, 2017
Autophagy activated after DNA damage or other stresses mitigates cellular damage by removing damaged proteins, lipids, and organelles. Activation of the master metabolic kinase AMPK enhances autophagy. Here we report that cyclin D1 restrains autophagy by
Bisetto, Sara, Casimiro, Mathew C., Di Rocco, Agnese, Disante, Gabriele, Jiao, Xuanmao, Kusminski, Christine M., Li, Zhiping, Loro, Emanuele, Ly, Daniel, Pestell, Richard, Pestell, Timothy G., Pupo, Claudia, Scherer, Philipp E., Seifert, Erin L., Shen, Che-Hung, Velasco-Velázquez, Marco A., Wang, Chenguang, Zheng, Bin   +17 more
core   +1 more source

Laser Induced Damage Studies in Borosilicate Glass Using nanosecond and sub nanosecond pulses

, 2016
The damage mechanism induced by laser pulse of different duration in borosilicate glass widely used for making confinement geometry targets which are important for laser driven shock multiplication and elongation of pressure pulse, is studied.
Chaurasia, S., Munda, D. S., Rastogi, Vinay   +2 more
core   +1 more source