Results 51 to 60 of about 1,244,172 (258)

Identification of serum protein biomarkers for pre‐cancerous lesions associated with pancreatic ductal adenocarcinoma

Molecular Oncology, EarlyView.
This work identified serum proteins associated with pancreatic epithelial neoplasms (PanINs) and early‐stage PDAC. Proteomics screens assessed genetically engineered mice with abundant PanINs, KPC mice (Lox‐STOP‐Lox‐KrasG12D/+ Lox‐STOP‐Lox‐Trp53R172H/+ Pdx1‐Cre) before PDAC development and also early‐stage PDAC patients (n = 31), compared to benign ...
Hannah Mearns, Jaclyn S. Long, Sergio Lilla, Kelly Hodge, Marcus J. G. W. Ladds, Colin Nixon, Paula Fernández‐Palanca, Sara Zanivan, Pilar Acedo, Stephen P. Pereira, Kevin M. Ryan   +10 more
wiley   +1 more source

Premature failure of medium-power two-pole induction motor windings

Electrical engineering & Electromechanics, 2013
Causes of premature failure of medium-power two-pole induction motor windings after the windings first repair are revealed. Recommendations for the medium-power two-pole induction motor winding reliability improvement are given.
V.D. Lushchyk , S.Yu. Polezіn , G.S. Antipko   +2 more
doaj  

Constraining the parameter space of comet simulation experiments [PDF]

, 2018
Our interpretation of the data returned by Rosetta and other cometary missions is based on the predictions of theoretical models and the results of laboratory experiments. For example, Kossacki et al. (2015) showed that 67P's surface hardness reported by
Hagermann, Axel, Kaufmann, Erika
core   +3 more sources

dUTPase is essential in zebrafish development and possesses several single‐nucleotide variants with pronounced structural and functional consequences

FEBS Open Bio, EarlyView.
dUTPases are involved in balancing the appropriate nucleotide pools. We showed that dUTPase is essential for normal development in zebrafish. The different zebrafish genomes contain several single‐nucleotide variations (SNPs) of the dut gene. One of the dUTPase variants displayed drastically lower protein stability and catalytic efficiency as compared ...
Viktória Perey‐Simon, Angéla Békesi, Latifa Kazzazy, Jázmin Mihály, Máté Varga, Beáta G. Vértessy, Kinga Nyíri   +6 more
wiley   +1 more source

Biomass burning is a source of modern black carbon to equatorial Atlantic Ocean sediments

Communications Earth & Environment
Black carbon is a refractory form of organic carbon formed from the incomplete combustion of fossil fuels and biomass. Riverine transport is considered the dominant pathway of black carbon to the coastal oceans.
Samuel D. Katz, Roger Patrick Kelly, Rebecca S. Robinson, Frank J. Pavia, Robert Pockalny, Rainer Lohmann   +5 more
doaj   +1 more source

Vulcanization Kinetics of Natural Rubber Based On Free Sulfur Determination

Indonesian Journal of Chemistry, 2013
The determination of free sulfur in the rubber vulcanizates provided significant representation of vulcanization reaction. In this research, the effects of vulcanization temperature, the mixing method of carbon black into rubber, the ingredients mixing ...
Abu Hasan, Rochmadi Rochmadi, Hary Sulistyo, Suharto Honggokusumo   +3 more
doaj   +1 more source

Fires prime terrestrial organic carbon for riverine export to the global oceans

Nature Communications, 2020
Black carbon is a recalcitrant and unique form of organic carbon formed from incomplete combustion. Here the authors use global sampling to reduce uncertainty in the flux of terrestrial black carbon to the oceans, predicting that 34% of black carbon ...
Matthew W. Jones, Alysha I. Coppola, Cristina Santín, Thorsten Dittmar, Rudolf Jaffé, Stefan H. Doerr, Timothy A. Quine   +6 more
doaj   +1 more source

Export efficiency of black carbon aerosol in continental outflow: Global implications [PDF]

, 2005
We use aircraft observations of Asian outflow from the NASA Transport and Chemical Evolution over the Pacific (TRACE-P) mission over the NW Pacific in March–April 2001 to estimate the export efficiency of black carbon (BC) aerosol during lifting to the ...
Andreae, Bey, Bond, Bond, Carmichael, Chin, Chuang, Chung, Clarke, Clarke, Cooke, Cooke, Cooper, Duncan, Fuelberg, Grassian, Grenfell, Hansen, Hansen, Huebert, Intergovernmental Panel on Climate Change, Jacob, Jacobson, Jacobson, Jacobson, Jacobson, Jordan, Keene, Koike, Langner, Li, Liousse, Liousse, Liu, Liu, Mari, Marley, Mauldin, Mauzerall, Moore, National Research Council, Noone, Ooki, Palmer, Park, Park, Parungo, Rokjin J. Park, Russo, Sachse, Stohl, Streets, Thompson, Tu, Wang, Wang, Warren, Weber, Zondlo   +58 more
core   +2 more sources

C2α‐carbanion‐protonating glutamate discloses tradeoffs between substrate accommodation and reaction rate in actinobacterial 2‐hydroxyacyl‐CoA lyase

FEBS Open Bio, EarlyView.
Enzymes of the 2‐hydroxyacyl‐CoA lyase group catalyze the condensation of formyl‐CoA with aldehydes or ketones. Thus, by structural adaptation of active sites, practically any pharmaceutically and industrially important 2‐hydroxyacid could be biotechnologically synthesized. Combining crystal structure analysis, active site mutations and kinetic assays,
Michael Zahn, Barbara Seroka, Ryszard Lazny, Zenon Lotowski, Thore Rohwerder   +4 more
wiley   +1 more source

Preparation and Characterization of Core-Shell Structure Hard Carbon/Si-Carbon Composites with Multiple Shell Structures as Anode Materials for Lithium-Ion Batteries

Energies, 2021
Novel core-shell structure hard carbon/Si-carbon composites are prepared, and their electrochemical performances as an anode material for lithium-ion batteries are reported.
Jong-Chan Kim, Kyung-Jin Kim, Sung-Man Lee   +2 more
doaj   +1 more source