Results 61 to 70 of about 4,042,661 (337)

On the Unusual Depletions toward Sk 155, or What Are the Small Magellanic Cloud Dust Grains Made of?

, 2006
The dust in the Small Magellanic Cloud (SMC), an ideal analog of primordial galaxies at high redshifts, differs markedly from that in the Milky Way by exhibiting a steeply rising far-ultraviolet extinction curve, an absence of the 2175 Angstrom ...
Aigen Li, Bouchet P., Bromage G. E., Contursi A., K. A. Misselt, Kurt C. M., Lequeux J., Reach W. T., Y. J. Wang   +8 more
core   +1 more source

Carbon Nanotubes by a CVD Method. Part I: Synthesis and Characterization of the (Mg, Fe)O Catalysts [PDF]

, 2002
The controlled synthesis of carbon nanotubes by chemical vapor deposition requires tailored and wellcharacterized catalyst materials. We attempted to synthesize Mg1-xFexO oxide solid solutions by the combustion route, with the aim of performing a ...
Alvarez W. E., Bacsa R. R., Bacsa R. R., Berthet A. Ph.D., Bhide V. G., Blank S. L., Boudart M., Brynestad J., Carles V., Coquay P., Coquay P., De Bakker P. Ph.D., De Grave E., Flahaut E., Flahaut E., Govindaraj A., Hafner J. H., Herrera J. E., Holland T. J. B., Jain S. R., Jing J., Kingsley J. J., Krawitz A., Laurent, Laurent, Li Y., Patil K. C., Peigney A., Peigney A., Peigney A., Perez A., Quénard O., Simkin D. J., Topsoe H., Trinel-Dufour M. C., Vandenberghe R. E., Waychunas G. A., Woods K. N., Yamaguchi G., Zhang Y.   +39 more
core   +3 more sources

PARP inhibition and pharmacological ascorbate demonstrate synergy in castration‐resistant prostate cancer

Molecular Oncology, EarlyView.
Pharmacologic ascorbate (vitamin C) increases ROS, disrupts cellular metabolism, and induces DNA damage in CRPC cells. These effects sensitize tumors to PARP inhibition, producing synergistic growth suppression with olaparib in vitro and significantly delayed tumor progression in vivo. Pyruvate rescue confirms ROS‐dependent activity.
Nicolas Gordon, Peter T. Gallagher, Orly I. Richter, Neermala Poudel Neupane, Amy C. Mandigo, Jennifer J. McCann, Emanuela Dylgjeri, Irina Vasilevskaya, Christopher McNair, Channing J. Paller, Wm. Kevin Kelly, Karen E. Knudsen, Matthew J. Schiewer, Ayesha A. Shafi   +13 more
wiley   +1 more source

Separation of silicon-iron-copper-nickel concentrate by fluorammonium method into individual oxides [PDF]

, 2007
Processes of ammonium hydrodifluoride interaction with main components of copper-nickel concentrates - iron, copper, nickel oxides have been investigated. Thermodynamics of chemical reactions was calculated.
Dyachenko, Alexander Nikolaevich, Kraidenko, R. I.   +1 more
core  

Dietary nitrate and nitrite protect against doxorubicin‐induced cardiac fibrosis and oxidative protein damage in tumor‐bearing mice

FEBS Open Bio, EarlyView.
Chemotherapies such as doxorubicin can have toxic effects on healthy cardiovascular/heart tissue. Following up on a doxorubicin toxicity study in mice without tumors where nitrate water was cardioprotective (lessened toxicity), this study with tumor‐bearing mice undergoing doxorubicin treatment showed no negative effect of nitrate and nitrite on drug ...
Rama D. Yammani, Xiaofei Chen, Nildris Cruz‐Diaz, Xuewei Zhu, Swati Basu, Daniel B. Kim‐Shapiro, David R. Soto‐Pantoja, Leslie B. Poole   +7 more
wiley   +1 more source

Iron transformation mediates phosphate retention across a permafrost thaw gradient

Communications Earth & Environment
Phosphorus limits primary productivity in many (Sub-)Arctic ecosystems and may constrain biological carbon sequestration. Iron (III) oxides strongly bind phosphate in soils but can dissolve under flooded, reducing conditions induced by permafrost thaw ...
Maximilian Barczok, Chelsea Smith, Lauren Kinsman-Costello, Monique Patzner, Casey Bryce, Andreas Kappler, David Singer, Elizabeth Herndon   +7 more
doaj   +1 more source

Formation of Iron Oxides by Surface Oxidation of Iron Plate

Croatica Chemica Acta, 2012
The formation of iron oxides by surface oxidation of iron plates between 400 and 800 °C for different times was monitored. Delamination of iron plates was noticed at temperatures above 500 °C. The pattern morphology was dependent on the temperature of oxidation and very little on time of oxidation.
Marciuš, Marijan, Ristić, Mira, Ivanda, Mile, Musić, Svetozar   +3 more
openaire   +6 more sources

Low Temperature Oxidation of pure Iron : Growth kinetics and scale Morphologies [PDF]

, 2004
Isothermal oxidation of pure iron has been performed in air at atmospheric pressure between 260°C and 500°C. Growth kinetics are accurately analysed and scale morphologies are investigated by SEM and TEM observations. The calculation of the variations of
Bertrand, Nathalie, Desgranges, Clara, Gauvain, Danielle, Monceau, Daniel, Poquillon, Dominique   +4 more
core   +1 more source

Antibiofilm activity of a chionodracine‐derived peptide by NMR‐based metabolomics of cell‐free supernatant of Acinetobacter baumannii clinical strains

FEBS Open Bio, EarlyView.
KHS‐Cnd peptide is able to impair biofilm formation and disaggregate mature biofilms in Acinetobacter baumannii clinical isolates. Differences in extracellular metabolites reflect changes in biofilm metabolism due to KHS‐Cnd treatment. Among the differentially represented extracellular metabolites upon KHS‐Cnd treatment, the significantly altered ...
Fernando Porcelli, Enrico Landi, Francesco Maiurano, Irene Paris, Rosanna Papa, Marco Artini, Laura Selan, Stefano Borocci, Francesco Buonocore, Esther Imperlini   +9 more
wiley   +1 more source

Isomers of Iron(III) Oxides and Cobalt(III) Oxides and Their Redox Properties: Quantum-Chemical Insights

Molecules
Iron(III) oxide and cobalt(III) oxide can form distinct spatial and spin configurations. Kite, spindle, and linear geometries have been shown to be stable for the specified electron configurations; however, these oxides generally favor higher open-shell ...
Sapajan Ibragimov, Leonard Komando, Maciej Bobrowski   +2 more
doaj   +1 more source