Results 91 to 100 of about 2,765 (199)

Eocene to Miocene U‐Pb Geochronology Evolution of the Rio Grande Rise, Southwestern Atlantic: A Paleoceanographic Approach

Paleoceanography and Paleoclimatology, Volume 41, Issue 8, August 2026.
Abstract The Rio Grande Rise (RGR) is a major submarine feature in the South Atlantic that plays an important role in regional oceanographic dynamics. This study presents new U‐Pb geochronology of sedimentary rocks from the RGR, offering direct age constraints on carbonate and apatite embedded within Fe‐Mn crusts and associated foraminifera fossils ...
Giovanna Orletti Del Rey, Roberto Ventura Santos, Lucieth Cruz Vieira, Isabela Moreno Cordeiro Sousa, Antônio Cosme Del Rey, Guilherme de Oliveira Gonçalves, Elton Luiz Dantas, Paola Ferreira Barbosa, Eugênio Pires Frazão   +8 more
wiley   +1 more source

HNRNPC Succinylation Influences the Neurodegeneration of Alzheimer's Disease Through YME1L1‐Mediated Mitochondrial Metabolism

Aging Cell, Volume 25, Issue 8, August 2026.
In Alzheimer's disease, SIRT5 downregulation enhances TRIM25‐mediated succinylation of HNRNPC at K50, increasing its stability. Stabilized HNRNPC upregulates YME1L1 expression via an m6A‐dependent mechanism, leading to OPA1 hydrolysis dysregulation, mitochondrial fission‐fusion imbalance, ROS overproduction, and neuronal death.
Xuewei Li, Fan Yang, Yuyan Jiang, Fei Zhao, Fan Liu   +4 more
wiley   +1 more source

Analysis of α Specific Activity of Plutonium and Neptunium Impurities in Uranium Trioxide

He huaxue yu fangshe huaxue
The α specific activity of plutonium(Pu) and neptunium(Np) in the uranium trioxide product is an important parameter for the quality control. In this study, a simple and reliable method based on TEVA resin was established for the determination of α ...
Yuanyuan SUN, Xianglu ZHANG, Chunyan LI, Ling MU, Li YANG   +4 more
doaj   +1 more source

Cortical‐Hypothalamic Assembloids Uncover the Cortical Regulation of Hypothalamic Responses to Fatty Acid

Cell Proliferation, Volume 59, Issue 8, August 2026.
By assembling cortical‐hypothalamic circuits, we show that cortical input protects hypothalamic neurons from fatty acid‐induced damage, which activates PGC1α to boost mitochondrial function. This reveals a cortico‐hypothalamic axis that defends against metabolic stress.
Mengdan Tao, Xiaowen Du, Qi Chen, Wenxin Mu, Shuning Lou, Xu Zhang, Min Xu, Jiting Li, Yuxuan Guo, Wanying Zhu, Yan Liu   +10 more
wiley   +1 more source

Actinide 4,4′‐Bipyridine‐N,N′‐Dioxide Coordination Polymers: Cationic Framework Structures Templated by Dicyanoaurate and Tetracyanoaurate Counterions

European Journal of Inorganic Chemistry, Volume 29, Issue 21, 25 July 2026.
Th4+ or UO22+ actinides, neutral bipyridine‐N,N’‐dioxide ligands, and anionic cyanoaurate linkers are combined to generate a family of four coordination polymers. ‘Truss bridge’ and square grid cationic frameworks are yielded when using [Au(CN)2]− or [Au(CN)4]−, respectively, indicating a templating effect guided by either aurophilic interactions ...
Sylvain St. Louis, Thomas E. Karpiuk, Daniel B. Leznoff   +2 more
wiley   +1 more source

Qualitative screening for redox‐sensitive elements in groundwater using the presence or absence of rust on irrigation center pivots

Agrosystems, Geosciences & Environment
Groundwater contaminants that can negatively impact human health, such as nitrate, uranium, arsenic, and manganese, are common in agricultural areas. The mobility and distribution of these contaminants in groundwater are strongly impacted by oxidation ...
Jeffrey P. Westrop
doaj   +1 more source

Possible domestication of uranium oxides using biological assistance reduction. [PDF]

Saudi J Biol Sci, 2017
Hidouri S.
europepmc   +1 more source

Fingerprinting Uranium Oxides with Electron Energy Loss Spectroscopy Supported by Theoretical Computations. [PDF]

J Phys Chem A
Carbone J, Bártová B, La Grange T, Reinhold K, Leinders G, Torruella P, Hébert C, Sassi M, Bernier-Latmani R, Rosso KM.   +9 more
europepmc   +1 more source

Depositional architecture and post-depositional alteration of the Toutunhe Formation (J2t) in the Louzhuangzi area, Southern Junggar Basin: Implications for uranium mineralization. [PDF]

PLoS One
Wang Q, Nie F, Xia F, Zhang X, Jia W, Lu K, Sun X, Yang DG.   +7 more
europepmc   +1 more source

Thermal Gradient Effects on Redox Evolution and Volatility-Driven Fractionation in Ternary U/Ce/Cs Condensates. [PDF]

Anal Chem
Dhaoui R, Weerakkody EN, Rose TP, Koroglu B, Balboni E.   +4 more
europepmc   +1 more source