Results 81 to 90 of about 9,333,414 (344)

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

Study of barium sulfate dissolution by scale dissolver based on solutions of DTPA

Anais da Academia Brasileira de Ciências
In offshore oil wells it is very common to perform seawater injection through injection wells for hydrocarbon recovery. When seawater, rich in sulfate ion, mixes with formation water, whose composition can contain divalent cations such as barium and ...
GEIZILA A.P. ABIB, GEORGIANA F. DA CRUZ, ALEXANDRE S.L. VAZ JUNIOR   +2 more
doaj   +1 more source

Formation damage due to asphaltene precipitation during CO2 flooding processes with NMR technique

Oil & Gas Science and Technology, 2019
In order to quantitatively evaluate the pore-scale formation damage of tight sandstones caused by asphaltene precipitation during CO2 flooding, the coreflood tests and Nuclear Magnetic Resonance (NMR) relaxometry measurements have been designed and ...
Kun Qian, Shenglai Yang, Hong-en Dou, J. Pang, Yu Huang   +4 more
semanticscholar   +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

Deep learning inter-atomic potential model for accurate irradiation damage simulations

, 2019
We propose a hybrid scheme that interpolates smoothly the Ziegler-Biersack-Littmark (ZBL) screened nuclear repulsion potential with a newly developed deep learning potential energy model.
Guo, Xun, Wang, Han, Wang, Hao, Xue, Jianming, Zhang, Linfeng   +4 more
core   +1 more source

Melting properties of radiation-induced Na and Cl2 precipitates in ultra-heavily irradiated NaCl [PDF]

, 2005
Exposure of NaCl to high doses of ionizing radiation leads to the formation of nano-particles of metallic Na, very small chlorine precipitates, vacancy voids, and dislocations.
Hartog, H.P. den,, Hartog, H.W. den,, Sugonyako, A.V.,, Turkin, A.A.,, Vainshtein, D.I.,   +4 more
core   +3 more sources

Adaptations of Escherichia coli strains to oxidative stress are reflected in properties of their structural proteomes. [PDF]

, 2020
BACKGROUND:The reconstruction of metabolic networks and the three-dimensional coverage of protein structures have reached the genome-scale in the widely studied Escherichia coli K-12 MG1655 strain.
Catoiu, Edward, Fang, Xin, Heckmann, David, Mih, Nathan, Monk, Jonathan M, Palsson, Bernhard O, Yang, Laurence   +6 more
core   +2 more sources

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

Drilling Operation and Formation Damage

Open Journal of Fluid Dynamics, 2013
Transport of particle suspensions in oil reservoirs is an essential phenomenon in many oil industry processes. Solid and liquid particles dispersed in the drilling fluid (mud) are trapped by the rock (porous medium) and permeability decline takes place during drilling fluid invasion into reservoir resulting in formation damage. The formation damage due
Hooman Fallah, Sara Sheydai
openaire   +2 more sources

Time evolution of dislocation formation in ion implanted silicon [PDF]

, 1994
Annealing of crystal damage from ion implantation may result in dislocation formation. Here we study the nucleation, growth, and annihilation of such dislocations during rapid thermal anneals of Si, Ge, As, and In implanted Si.
Custer, J.S., Liefting, J.R., Saris, F.W.   +2 more
core   +3 more sources