Results 51 to 60 of about 86,821 (289)

Investigations of Zr(IV) in LiF-CaF2: stability with oxide ions and electroreduction pathway on inert and reactive electrodes [PDF]

, 2013
In this work, a detailed electrochemical study of the molten LiF-CaF2-ZrF4 system is provided in the 810-920°C temperature range, allowing the determination of the reduction potential, the diffusion coefficient and the reduction mechanism of dissolved Zr(
Cassayre, Laurent, Chamelot, Pierre, Gibilaro, Mathieu, Massot, Laurent, Taxil, Pierre   +4 more
core   +4 more sources

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

FEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

Early Stages of Fatigue Damage of Steels for Fusion Energetics [PDF]

, 2012
Hlavním cílem této práce bylo vysvětlit únavové chování ocelí ODS Eurofer, 14Cr ODS feritické oceli vyráběné v CEA (Commissariat a l’énergie atomique, Saclay, France) a 14Cr ODS feritické oceli vyráběné v EPFL (École Polytechnique Fédérale de Laussane ...
Kuběna, Ivo
core  

The influence of the preparation method of NiOx photocathodes on the efficiency of p-type dye-sensitised solar cells [PDF]

, 2015
Improving the efficiency of p-type dye-sensitized solar cells (DSCs) is an important part of the development of high performance tandem DSCs. The optimization of the conversion efficiency of p-DSCs could make a considerable contribution in the ...
Dini, Danilo, Gibson, E. A., Halpin, Y., Vos, J. G.   +3 more
core   +1 more source

Thermal rearrangements of cyclic amine ylides. IV. Rearrangement of .BETA.,.GAMMA.-unsaturated 1-alkylpiperidine N-oxides: Formation of 1,2-oxazepine derivatives.

Chemical and Pharmaceutical Bulletin, 1984
The thermolysis of 1-methyl-2-vinylpiperidine N-oxide (13) resulted in Meisenheimer [1, 2] rearrangement to give the hexahydro-1, 2-oxazepine (23) and no [2, 3]-sigmatropic rearrangement product (24). Similarly, the 1-methyl-1, 2, 5, 6-tetrahydropyridine N-oxides (15), on heating, gave only the tetrahydro-1, 2-oxazepines (26, 27), together with the ...
HARUKI SASHIDA, TAKASHI TSUCHIYA
openaire   +2 more sources

Linking neurogenesis, oligodendrogenesis, and myelination defects to neurodevelopmental disruption in primary mitochondrial disorders

FEBS Letters, EarlyView.
Mitochondrial remodeling shapes neural and glial lineage progression by matching metabolic supply with demand. Elevated OXPHOS supports differentiation and myelin formation, while myelin compaction lowers mitochondrial dependence, revealing mitochondria as key drivers of developmental energy adaptation.
Sahitya Ranjan Biswas, Porter L. Tomsick, Alicia M. Pickrell, Paul D. Morton   +3 more
wiley   +1 more source

S-Nitroso-N-acetyl-L-cysteine ethyl ester (SNACET) and N-acetyl-L-cysteine ethyl ester (NACET)–Cysteine-based drug candidates with unique pharmacological profiles for oral use as NO, H2S and GSH suppliers and as antioxidants: Results and overview

Journal of Pharmaceutical Analysis, 2018
S-Nitrosothiols or thionitrites with the general formula RSNO are formally composed of the nitrosyl cation (NO+) and a thiolate (RS−), the base of the corresponding acids RSH.
Dimitrios Tsikas, Kathrin S. Schwedhelm, Andrzej Surdacki, Daniela Giustarini, Ranieri Rossi, Lea Kukoc-Modun, George Kedia, Stefan Ückert   +7 more
doaj   +1 more source

Cytoplasmic p21 promotes stemness of colon cancer cells via activation of the NFκB pathway

Molecular Oncology, EarlyView.
Cytoplasmic p21 promotes colorectal cancer stem cell (CSC) features by destabilizing the NFκB–IκB complex, activating NFκB signaling, and upregulating BCL‐xL and COX2. In contrast to nuclear p21, cytoplasmic p21 enhances spheroid formation and stemness transcription factor CD133.
Arnatchai Maiuthed, Kerstin Huebner, Katharina Erlenbach‐Wuensch, Chuanpit Hampel, Daniela Thalheim, Adriana Vial‐Roehe, Bodee Nutho, Susanne Merkel, Arndt Hartmann, Pithi Chanvorachote, Regine Schneider‐Stock   +10 more
wiley   +1 more source

Halogen‐Free Anisotropic Atomic‐Layer Etching of HfO2 at Room Temperature

Small Science
Hafnium(IV) oxide (HfO2)‐based materials have attracted substantial interest owing to their outstanding performance in advanced ultrathin semiconductor devices.
Shih‐Nan Hsiao, Pak‐Man Yiu, Li‐Chun Chang, Jyh‐Wei Lee, Makoto Sekine, Masaru Hori   +5 more
doaj   +1 more source

Cyclic electric field stress on bipolar resistive switching devices [PDF]

, 2013
We have studied the effects of accumulating cyclic electrical pulses of increasing amplitude on the non-volatile resistance state of interfaces made by sputtering a metal (Au, Pt) on top of the surface of a cuprate superconductor YBa$_2$Cu$_3$O$_{7 ...
Acha, Carlos, Schulman, Alejandro
core   +4 more sources