Results 31 to 40 of about 899,007 (265)

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

Dislocation Behavior in TiVTa Multi-Principal Element Alloys: A Nanoindentation Simulation Study

Crystals
Molecular dynamics simulations of nanoindentation were conducted to compare the dislocation behavior in a pure V and a TiVTa multi-principal element alloy (MPEA) with [100] and [111] crystal orientations.
Shumin Wang, Jin Wang, Jinli Cao, Xinfu He, Yankun Dou   +4 more
doaj   +1 more source

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

A Quasi-Lumped Element Series Array Resonator Antenna [PDF]

Radioengineering, 2015
This paper presents a 6-element series array quasi-lumped element resonator antenna. The proposed antenna employs an interdigital capacitor in parallel with a straight strip conductor whose centre finger is shorted across the capacitor.
S. S. Olokede
doaj  

3D genomic organization in cancers

Quantitative Biology, 2023
Background The hierarchical three‐dimensional (3D) architectures of chromatin play an important role in fundamental biological processes, such as cell differentiation, cellular senescence, and transcriptional regulation.
Junting Wang, Huan Tao, Hao Li, Xiaochen Bo, Hebing Chen   +4 more
doaj   +1 more source

Loop-to-Loop Coupling [PDF]

, 2012
This report estimates inductively-coupled energy to a low-impedance load in a loop-to-loop arrangement. Both analytical models and full-wave numerical simulations are used and the resulting fields, coupled powers and energies are compared. The energies are simply estimated from the coupled powers through approximations to the energy theorem.
Warne, Larry Kevin, Lucero, Larry Martin, Langston, William L., Salazar, Robert Austin, Coleman, Phillip Dale, Basilio, Lorena I., Bacon, Larry Donald   +6 more
openaire   +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

Phosphatidylinositol 4‐kinase as a target of pathogens—friend or foe?

FEBS Letters, EarlyView.
This graphical summary illustrates the roles of phosphatidylinositol 4‐kinases (PI4Ks). PI4Ks regulate key cellular processes and can be hijacked by pathogens, such as viruses, bacteria and parasites, to support their intracellular replication. Their dual role as essential host enzymes and pathogen cofactors makes them promising drug targets.
Ana C. Mendes, Guilherme M. Azevedo, Amanda P. Barcellos, Diana Bahia   +3 more
wiley   +1 more source

Case Report: Enhancing lead extraction techniques: a novel approach using a loop formed by an ablation catheter and a gooseneck snare

Frontiers in Cardiovascular Medicine
The difficulty and complexity of lead extraction procedures increase with the age of the lead to be extracted. The extraction of old (>20 years) leads is more time-consuming and requires advanced tools and a complex technique.
Jun Li, Lei Wang, Xiaofang Li, Na Li, Xin Shao, Anxin Zhang, Yan Shu, Haixiong Wang   +7 more
doaj   +1 more source

Is Ileostomy an Obligation Following Rectal Resection? The Role of Rectal Tube Instead of Ileostomy

Bezmiâlem Science, 2023
Objective:In laparoscopic distal colon surgery, diverting ileostomy is often used to improve the anastomosis leakage and eliminate the need for secondary surgery. However, complications related to the stoma and its closure have led to new searches.
Ersin GÜNDOĞAN, Cüneyt KAYAALP, Fatih SÜMER   +2 more
doaj   +1 more source