Results 41 to 50 of about 12,048 (161)

Obtención y caracterización de materiales compuestos W-Cu para contactos eléctricos

Revista de Metalurgia, 2003
En el Centro de Investigaciones Metalúrgicas (CIME), cubano, se fabrican por pulvimetalurgia, calzos de material compuesto volframio-cobre, que se utilizan en los contactos eléctricos de los paneles de control de las grúas pórtico que operan en el puerto
N. Krivij, E. Alonso-Trujillo, L. L. García-Sánchez, J. A. Villalonga, A. Formoso-Prego, F. J. Alguacil, A. Cores-Sánchez   +6 more
doaj   +1 more source

CAUSA RARA DE ANEMIA MACROCÍTICA E NEUTROPENIA: RELATO DE CASO

Hematology, Transfusion and Cell Therapy, 2021
Introdução: A hipocupremia manifesta-se como anemia, com ou sem leucopenia e trombocitopenia, pancitopenia ou neutropenia isolada. A depleção de cobre provoca redução da absorção de ferro pelo intestino, diminuição da liberação de ferro pelo sistema ...
NASN Segundo, ACR Sousa, IMF Pordeus, RVM Acioli, SDFA Figueiredo, CMF Rolo, LP Silva   +6 more
doaj   +1 more source

Diabetes‐induced vascular calcification is associated with low pyrophosphate and its oral supplementation prevents calcification in diabetic mice

FEBS Open Bio, Volume 16, Issue 3, Page 474-486, March 2026.
Induction of diabetes in three different mouse strains uniformly resulted in an increase in TNAP activity and a reduction in pyrophosphate (PPi) in the circulation. Inhibition of TNAP restored plasma PPi. Diabetes‐induced calcification in the media layer of the aorta was detected only in the Abcc6−/− strain, which is predisposed to ectopic ...
Krisztina Fülöp, Eszter Kozák, Natália Tőkési, Lilian Kocsis, Anikó Kelemen, Zsuzsanna Geszti, Adriána Kutás, Mariann Harangi, Ágnes Diószegi, Zsolt Rapi, József Balla, Olivier Le Saux, András Váradi, Viola Pomozi   +13 more
wiley   +1 more source

Promoting Autophagy Mitigates Stress‐Induced Remodeling in Patient iPSC‐CMs with the Phospholamban R9C Mutation

Advanced Science, Volume 13, Issue 7, 3 February 2026.
The Phospholamban (PLN) R9C mutation reduces SERCA2a binding, increasing calcium recycling and baseline contractility. However, the excess of free PLN promotes pentamer formation, limiting phosphorylation and blunting β‐adrenergic signaling. Under cardiac stress, enhanced functional demands overwhelm proteostasis in PLN R9C cells, leading to misfolded ...
Qi Yu, Yawei Shen, Robert J. Barndt, Karim Sallam, Ying Tang, Cameron E. Brown, Xiao Li, Stephen Y. Chan, Joseph C. Wu, Qing Liu, Haodi Wu   +10 more
wiley   +1 more source

Fasting as Medicine: Mitochondrial and Endothelial Rejuvenation in Vascular Aging

Aging Cell, Volume 25, Issue 2, February 2026.
Aging impairs cerebrovascular health by driving mitochondrial dysfunction, oxidative stress, endothelial failure, and neurovascular uncoupling, leading to BBB breakdown and cognitive decline. In contrast, time‐restricted feeding/eating counteracts these mechanisms by restoring mitochondrial function, activating adaptive nutrient‐sensing pathways ...
Madison Milan, Eva Troyano‐Rodriguez, Jennifer Ihuoma, Sharon Negri, Rakesh Rudraboina, Aleksandra Kosmider, Shantipriya Awasthi, Priya Balasubramanian, Shannon Conley, Andriy Yabluchanskiy, Anna Csiszar, Zoltan Ungvari, Rafael de Cabo, Stefano Tarantini   +13 more
wiley   +1 more source

Atividade moluscicida da mistura de ácidos 6-n-alquil salicílicos (ácido anacárdico) e dos seus complexos com cobre (II) e chumbo (II)

Revista da Sociedade Brasileira de Medicina Tropical, 1990
Foi comparada, em laboratório, a atividade moluscicida do extrato hexânico da casca da castanha do caju - Anacardium occidentalel L. (EHCCC), do complexo de cobre (II), docomplexo de chumbo (II) e do ácido anacárdico com objetivo de encontrar entre eles ...
Nelymar Martineli Mendes, Alaíde Braga de Oliveira, João Edmundo Guimarães, José Pedro Pereira, Naftale Katz   +4 more
doaj   +1 more source

Decadal‐Scale In Situ Scanning of a Stalagmite From Southwest China Reveals Blake Geomagnetic Excursion Structure

Geophysical Research Letters, Volume 53, Issue 2, 28 January 2026.
Abstract We present a decadal‐scale paleomagnetic analysis of a stalagmite collected from Shuixi Cave, southwest China, spanning 89−123 ka. Our findings include: (a) Magnetite is the dominant magnetic mineral, and paleomagnetic directions can be obtained via demagnetization; (b) Magnetic scanning at 0.1‐mm resolution captures key magnetic features ...
Zhongshan Shen, Youwei Li, Liang Yi, Huafeng Qin, Jian Wang, Yibing Li, Hai Cheng   +6 more
wiley   +1 more source

A Minimally Invasive Framework Reveals Region‐Specific Cerebrovascular Remodeling in Aging Using Intravital Functional Ultrasound Imaging and Ultrasound Localization Microscopy (fUS‐ULM)

Advanced Science, Volume 13, Issue 1, 5 January 2026.
A high‐resolution intravital imaging platform combining functional ultrasound and localization microscopy enables longitudinal, minimally invasive assessment of cerebrovascular function in aging studies. The present investigation reveals aging‐related reductions in neurovascular coupling, arteriole‐to‐venule ratio and vascular density, introducing a ...
Sharon Negri, Adam Nyul‐Toth, Madison Milan, Eva Troyano‐Rodriguez, Sherwin Tavakol, Jennifer Ihuoma, Zeke Reyff, Rakesh Rudraboina, Rafal Gulej, Raymond Jang, Anna Csiszar, Zoltan Ungvari, Audrey Cleuren, David R Miller, Andriy Yabluchanskiy, Mickael Tanter, Stefano Tarantini   +16 more
wiley   +1 more source

Plant growth-promoting bacteria in sorghum development in coppercontaminated soil

Revista Brasileira de Ciências Ambientais
O cobre é um metal que pode se tornar tóxico para o sorgo quando presente em altas concentrações no solo. A utilização de rizobactérias promotoras do crescimento de planta pode ser uma alternativa para o desenvolvimento do sorgo [Sorghum bicolor (L ...
Juliano Cesar da Silva, Rodrigo Ferreira da Silva, Victorino Menegat dos Santos, Andréa da Rocha Giovenardi, Danni Maisa da Silva, Eduardo Canepelle, Ana Paula da Silva   +6 more
doaj   +1 more source

Amenizante Orgânico e Eucalyptus grandis para Fitoestabilização de Solo Contaminado com Cobre

Floresta e Ambiente, 2017
RESUMO Este trabalho avaliou a utilização de turfa como amenizante e Eucalyptus grandis como técnica de fitoestabilização para remediar solo contaminado com cobre. O trabalho foi conduzido sob delineamento inteiramente casualizado em arranjo fatorial (2 ×
Rudinei De Marco, Rodrigo Ferreira da Silva, Douglas Leandro Scheid, Clovis Orlando da Ros, Vanderlei Rodrigues da Silva   +4 more
doaj   +1 more source