Results 71 to 80 of about 589,999 (404)

Five-S-isotope evidence of two distinct mass-independent sulfur isotope effects and implications for the modern and Archean atmospheres. [PDF]

, 2018
The signature of mass-independent fractionation of quadruple sulfur stable isotopes (S-MIF) in Archean rocks, ice cores, and Martian meteorites provides a unique probe of the oxygen and sulfur cycles in the terrestrial and Martian paleoatmospheres.
Li, Menghan, Lin, Mang, Liu, Lanzhong, Shen, Yanan, Su, Binbin, Tao, Jun, Thiemens, Mark H, Xu, Yilun, Zhang, Xiaolin, Zhang, Zhisheng   +9 more
core  

Thermochemistry of yavapaiite KFe(SO4)2: Formation and decomposition [PDF]

, 2005
Yavapaiite, KFe(SO4)2, is a rare mineral in nature, but its structure is considered as a reference for many synthetic compounds in the alum supergroup. Several authors mention the formation of yavapaiite by heating potassium jarosite above ca. 400°C. To
Drouet, Christophe, Forray, Ferenc Lázár, Navrotsky, Alexandra   +2 more
core   +1 more source

Loss of primary cilia promotes EphA2‐mediated endothelial‐to‐mesenchymal transition in the ovarian tumor microenvironment

Molecular Oncology, EarlyView.
Loss of primary cilia in endothelial cells promotes EndMT and vascular abnormalities in the ovarian tumor microenvironment through EphA2 activation. Using human samples, in vitro models, and endothelial‐specific Kif3a‐knockout mice, we show that primary cilia loss drives the acquisition of cancer‐associated fibroblast‐like phenotypes, thereby ...
Jin Gu Cho, Yubin Hah, Eunsik Yun, Hye In Ka, Aram Lee, Sora Han, Dawn Lee, Sung Wook Kim, Jong Hoon Park, Byung Su Kwon, Young Yang, Jongmin Kim   +11 more
wiley   +1 more source

Recombination Luminescence and Electron–Hole Trapping Centers in BaSO₄-Bi Phosphor

Crystals
This study of the BaSO4-Bi phosphor has revealed that the accumulated energy after external optical excitation exhibits specific characteristics. During irradiation with photon energy exceeding the bandgap, in addition to the intrinsic ultraviolet ...
Sapargali Pazylbek, Turlybek N. Nurakhmetov, Aibek S. Nurpeissov, Temirulan T. Alibay, Batsay M. Sadykova, Raushan K. Shamiyeva, Aleksej Zarkov, Aivaras Kareiva   +7 more
doaj   +1 more source

Method for producing oxygen from lunar materials [PDF]

, 1993
This invention is related to producing oxygen from lunar or Martian materials, particularly from lunar ilmenite in situ. The process includes producing a slurry of the minerals and hot sulfuric acid, the acid and minerals reacting to form sulfates of the
Sullivan, Thomas A.
core   +1 more source

Combinatorial Roles of Heparan Sulfate Proteoglycans and Heparan Sulfates in Caenorhabditis elegans Neural Development [PDF]

, 2014
Heparan sulfate proteoglycans (HSPGs) play critical roles in the development and adult physiology of all metazoan organisms. Most of the known molecular interactions of HSPGs are attributed to the structurally highly complex heparan sulfate (HS) glycans.
AN Minniti, B Casu, BD Ackley, BT Kim, C Desai, C Rhiner, CL Merry, DR Ferro, H Habuchi, H Kitagawa, H Kitagawa, H Kitagawa, H Morio, HE Bulow, HE Bulow, HE Bulow, J Aikawa, J Li, JP Li, JR Bishop, JY Sze, K Holmborn, KL Kramer, M Zako, ML Hudson, MM Shah, MM Shah, Nikos K. Karamanos, NW Shworak, RA Townley, S Brenner, S Tumova, SG Clark, SL Bullock, T Kinnunen, T Kinnunen, T Lind, Tarja K. Kinnunen, TL Gumienny, TM Rogalski, TR Rudd, UM Polanska   +41 more
core   +3 more sources

Deoxynivalenol-sulfates: identification and quantification of novel conjugated (masked) mycotoxins in wheat

Analytical and Bioanalytical Chemistry, 2014
We report the identification of deoxynivalenol-3-sulfate and deoxynivalenol-15-sulfate as two novel metabolites of the trichothecene mycotoxin deoxynivalenol in wheat.
B. Warth, P. Fruhmann, G. Wiesenberger, Bernhard Kluger, B. Šarkanj, Marc Lemmens, C. Hametner, Johannes Fröhlich, Gerhard Adam, Rudolf Krska, R. Schuhmacher   +10 more
semanticscholar   +1 more source

A nucleotide‐independent, pan‐RAS‐targeted DARPin elicits anti‐tumor activity in a multimodal manner

Molecular Oncology, EarlyView.
We report a Designed Ankyrin Repeat Protein that binds and inhibits RAS proteins, which serve as central cell signaling hubs and are essential for the progression of many cancers. Its unique feature is that it does not discriminate between different RAS isoforms or mutations and is capable of binding to RAS in both its active (GTP‐bound) and inactive ...
Jonas N. Kapp, Wouter P. R. Verdurmen, Jonas V. Schaefer, Kari Kopra, Gabriela Nagy‐Davidescu, Elodie Richard, Marie‐Julie Nokin, Patrick Ernst, Rastislav Tamaskovic, Martin Schwill, Ralph Degen, Claudia Scholl, David Santamaria, Andreas Plückthun   +13 more
wiley   +1 more source

3D-Mesomechanical analysis of external sulfate attack in concrete [PDF]

, 2017
The present study focuses on degradation of concrete by external sulfate attack. The numerical model developed by the MECMAT/UPC group, incorporates coupled C-M analysis using a meso-mechanical approach with discrete cracking, using the MEF and zero ...
Carol, Ignacio, López Garello, Carlos María, Pérez, A., Riera Bayo, Celia   +3 more
core  

BMP antagonist CHRDL2 enhances the cancer stem‐cell phenotype and increases chemotherapy resistance in colorectal cancer

Molecular Oncology, EarlyView.
Overexpression of CHRDL2 in colon cancer cells makes them more stem‐like and resistant to chemo‐ and radiotherapy. CHRDL2‐high cells have upregulation of the WNT pathway, genes involved in the DNA damage response (DDR) pathway and epithelial‐to‐mesenchymal transition (EMT). This leads to quicker repair of damaged DNA and more cell migration.
Eloise Clarkson, Annabelle Lewis
wiley   +1 more source