Results 141 to 150 of about 5,390,161 (308)

L‐aspartate oxidase provides new insights into fumarate reduction in anaerobic darkness in Synechocystis sp. PCC6803

FEBS Letters, EarlyView.
Synechocystis strains deficient in succinate dehydrogenase (SDH) secrete more succinate than the WT under dark anaerobic conditions, supporting that SDH then primarily acts as SDH, not as a fumarate reductase. L‐aspartate oxidase (Laspo) from Synechocystis is functional under anaerobic conditions, reducing fumarate to succinate.
Kateryna Kukil, Jeffrey A. Hawkes, Cecilia Blikstad, Pia Lindberg   +3 more
wiley   +1 more source

Decoding density limit disruption precursor patterns in J-TEXT using interpretable machine learning

Nuclear Fusion
Achieving high-density operation is crucial for maximizing the fusion gain factor in future tokamaks. While the Greenwald density limit is widely used, it lacks a first-principles basis and its underlying physics remains under discussion. Recent research
Wei Zheng, Mingqiao Wen, Chengshuo Shen, Li Gao, Weijie Lin, Runyu Luo, Fengming Xue, Yonghua Ding, Zhongyong Chen, J-TEXT Team   +9 more
doaj   +1 more source

The 3D Density Structure of the South China Sea Based on Wavelet Multi-Scale Analysis of Gravity Data and Its Tectonic Implications

Remote Sensing
Due to its unique geographical location and complex geological evolution processes, the South China Sea has been a focus of extensive research. Previous studies on the density structure of the South China Sea mostly focused on 2D density structures, with
Chuang Xu, Shiquan Su, Haopeng Chen, Hangtao Yu, Jinbo Li, Feiyu Zhang, Juntao Liang, Xu Lin   +7 more
doaj   +1 more source

Artificial molecular machines and motors—Design and control of nanoscale motion

FEBS Letters, EarlyView.
Molecules are constantly moving because of thermal fluctuations, but random motion alone cannot be exploited to perform directional tasks. Artificial molecular machines use chemical, electrical, or light energy to bias this motion. Molecular shuttles, rotary motors, and supramolecular pumps illustrate how nanoscale movement can be controlled and ...
Leonardo Andreoni, Alberto Credi
wiley   +1 more source

The heterodimeric amino acid transporters (HAT) of the SLC7/SLC3 family: A structure−function relationships and relevance to human pathology

FEBS Letters, EarlyView.
Heterodimeric amino acid transporters consist of SLC7 and SLC3 family proteins arranged in a conserved structural organization. They regulate nutrient transport across cell membranes, supporting essential cellular functions. These transporters also contribute to xenobiotic/drug uptake and distribution.
Mariafrancesca Scalise, Tiziano Mazza, Raffaella Scanga, Lara Console, Michele Galluccio, Cesare Indiveri   +5 more
wiley   +1 more source

The evolution of mixed strategies in population games [PDF]

, 2008
We study the evolution of mixed strategies in population games. At any time, the distribution of mixed strategies over agents in a population is described by a density function. A pair of players is chosen randomly in each round of the game. After each
Lahkar, R., Seymour, R.
core  

Multiscale evolution of TiC particles in GH3536-based composites fabricated via laser powder bed fusion: coarsening mechanisms and hierarchical distribution

International Journal of Extreme Manufacturing
The laser powder bed fusion (LPBF) of metal matrix composites (MMCs) involves distinctive rapid melting and nonequilibrium solidification dynamics. Elucidating the intricate evolution mechanisms of particles is critical for fabricating MMCs with superior
Peng Zhao, Quanquan Han, Zhenhua Zhang, Zhongyang Sui, Liqiao Wang, Bo Song, Min Zhu, Xiebin Wang, Rossitza Setchi, Chuanzhen Huang   +9 more
doaj   +1 more source

A context‐dependent modulatory role for eIF6 in acquired resistance to vemurafenib in melanoma

FEBS Letters, EarlyView.
Acquired resistance to vemurafenib upregulates the translation factor eIF6 in melanoma cells. Silencing eIF6 in resistant cells reduces proliferation and partially restores drug sensitivity, whereas its overexpression increases sensitivity across melanoma lines regardless of BRAF status, via modulation of mTOR, S6K, and MAPK signaling.
George Kyriakopoulos, Antonia Petropoulou, Alexandra Anastogianni, Angelina Bania, Vassilis Stamatakis, Argyris Alexiou, Chi‐Ping Day, Glenn Merlino, Katerina Grafanaki, Constantinos Stathopoulos   +9 more
wiley   +1 more source

Stability of evolving cluster of stars and exotic matter

European Physical Journal C: Particles and Fields
This paper discusses the phenomenon of evolving spherically symmetric cluster of stars in the presence of an exotic matter. To discuss evolutionary mechanism, we use the Starobinsky model of f(R) gravity as exotic matter and the structure scalars as ...
Wasee Shahid, Rubab Manzoor, Saadia Mumtaz, Syed Ali Mardan, Adnan Malik   +4 more
doaj   +1 more source

Metastatic niche shaped by host factors influences disseminated cancer cell fate

FEBS Letters, EarlyView.
Metastasis is shaped not only by cancer cells but also by the environments they encounter. This review explores how factors such as aging, diet, the microbiome, lifestyle, and environmental exposures remodel organ‐specific niches in the lung, liver, bone, and brain, influencing where metastatic cells survive, remain dormant, or grow, and ultimately ...
Gwennan Delyth Ward, Álvaro Ruiz‐Tabas, Patricia Altea‐Manzano   +2 more
wiley   +1 more source