Results 81 to 90 of about 441,985 (347)

Chemistry of heavy elements in the Dark Ages [PDF]

, 2009
Primordial molecules were formed during the Dark Ages, i.e. the time between recombination and reionization in the early Universe. The purpose of this article is to analyze the formation of primordial molecules based on heavy elements during the Dark ...
Abel, Abel, Affleck, Applegate, Barkana, Basu, Basu, Bromm, Burles, C. Winteler, Ciardi, Cyburt, D. Puy, Dolgov, Dubrovich, Dunkley, Fall, Fendt, Field, Flower, Flower, Galli, Glover, Glover, Glover, Harwit, Hindmarsh, Hirata, Huntress, Jedamzik, Khlopov, Komatsu, Kompaneets, Le Bourlot, Lepp, Lepp, Lipovka, M. Signore, Maio, Malaney, Maoli, Maoli, Matsuura, Matsuura, Matsuura, McGreer, Molaro, Nagakura, Omukai, Omukai, P. Vonlanthen, Peebles, Peebles, Pfenniger, Puy, Puy, Puy, Puy, Puy, Péquignot, Rauscher, Ripamonti, Ripamonti, Saslaw, Schleicher, Shchekinov, Signore, Signore, Silk, Songaila, Songaila, Stancil, Stancil, Steigman, T. Rauscher, Tegmark, Uehara, Uehara, V. Dubrovich, Verner, Verner, Woodall, Yoshida   +82 more
core   +4 more sources

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

Molecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source

Engineered extracellular vesicles enriched with the miR‐214/199a cluster enhance the efficacy of chemotherapy in ovarian cancer

Molecular Oncology, EarlyView.
Loss of the miR‐214/199a cluster is associated with recurrence in ovarian cancer. Engineered small extracellular vesicles (m214‐sEVs) elevate miR‐214‐3p/miR‐199a‐5p in tumor cells, suppress β‐catenin, TLR4, and YKT6 signaling, reprogram tumor‐derived sEV cargo, reduce chemoresistance and migration, and enhance carboplatin efficacy and survival in ...
Weida Wang, Ayesha Alvero, Yi Qin, Mingjin Wang, Alexandra Fox, Yanfeng Li, Michael Millman, Amy Kemper, Gil Mor, Xian Shuang Liu, Michael Chopp, Zheng Gang Zhang, Yi Zhang   +12 more
wiley   +1 more source

Ultra-Thin SnS₂-Pt Nanocatalyst for Efficient Hydrogen Evolution Reaction

Nanomaterials, 2020
Transition-metal dichalcogenides (TMDs) materials have attracted much attention for hydrogen evolution reaction (HER) as a new catalyst, but they still have challenges in poor stability and high reaction over-potential.
Yanying Yu, Jie Xu, Jianwei Zhang, Fan Li, Jiantao Fu, Chao Li, Cuihua An   +6 more
doaj   +1 more source

Mn_2V_2O_7: An Earth Abundant Light Absorber for Solar Water Splitting [PDF]

, 2015
Complex oxide β-Mn_2V_2O_7 is identified as exhibiting near-optimal band energetics for solar fuel applications among known metal oxides. Experiments, corroborated by theory, indicate a bandgap near 1.8 eV.
Gregoire, John M., Li, Guo, Neaton, Jeffrey B., Newhouse, Paul F., Persson, Kristin A., Yan, Qimin, Yu, Jie   +6 more
core   +1 more source

Targeting TNBC: core–shell polycationic polyurea dendrimers with inherent anticancer activity

FEBS Open Bio, EarlyView.
Core–shell polycationic PURE dendrimers were tested in TNBC‐derived tumor models. Both formulations selectively targeted TNBC and effectively reduced tumor volume. PUREG4‐OEI48 suppressed tumor growth without detectable toxicity, whereas PUREG4‐OCEI24, despite showing efficacy, induced hepatic toxicity.
Adriana Cruz, Bruna Abreu, Cindy Mendes, Catarina Freitas‐Dias, Filipe Gonçalves, Fernanda Silva, José Ramalho, Saudade André, Vasco D. B. Bonifácio, Jacinta Serpa   +9 more
wiley   +1 more source

Nickel Nanoparticles Infused Iron Tungstate Nanocomposite for Clean Energy Carrier Hydrogen Generation via Water Splitting

Advanced Materials Interfaces
Green hydrogen, as a renewable energy source with vast potential and multiple uses, will play a crucial role in the energy transition. This study focuses on improving clean energy production, specifically green hydrogen, through the synthesis and ...
Dasu Ram Paudel, Rama Kafle, Niraj Dhital, Manjinder Singh, Balaji S. Salokhe   +4 more
doaj   +1 more source

Heterostructures of MXenes and N-doped graphene as highly active bifunctional electrocatalysts

, 2018
MXenes with versatile chemistry and superior electrical conductivity are prevalent candidate materials for energy storage and catalysts. Inspired by recent experiments of hybridizing MXenes with carbon materials, here we theoretically design a series of ...
Liu, Nanshu, Pei, Wei, Yang, Xiaowei, Zhao, Jijun, Zhou, Si   +4 more
core   +1 more source

Metformin promotes mitochondrial integrity through AMPK‐signaling in Leber's hereditary optic neuropathy

FEBS Open Bio, EarlyView.
Metformin mediates mitochondrial quality control in Leber's hereditary optic neuropathy (LHON) fibroblasts carrying mtDNA mutations. At therapeutic levels, metformin activates AMPK signaling to restore mitochondrial dynamics by promoting fusion and restraining fission, while preserving mitochondrial mass, enhancing autophagy/mitophagy and biogenesis ...
Chatnapa Panusatid, Rapasviranda Soiyangsuk, Maneeluck Tanadjindarat, Chayanon Peerapittayamongkol   +3 more
wiley   +1 more source

An Analysis of the Conceptual and Functional Factors Affecting the Effectiveness of Proton-Exchange Membrane Water Electrolysis

ChemEngineering
Hydrogen has the potential to decarbonize the energy and industrial sectors in the future, mainly if it is generated by water electrolysis. The proton-exchange membrane water electrolysis (PEMWE) system is regarded as a propitious technology to produce ...
Gaydaa AlZohbi
doaj   +1 more source