Results 121 to 130 of about 1,097,727 (354)

Factors influencing the stable carbon isotopic composition of suspended and sinking organic matter in the coastal Antarctic sea ice environment [PDF]

, 2011
A high resolution time-series analysis of stable carbon isotopic signatures in particulate organic carbon (δ13CPOC) and associated biogeochemical parameters in sea ice and surface waters provides an insight into the factors affecting δ13CPOC in the ...
Carson, D. S., Ganeshram, R.S., R. S. Ganeshram, S. F. Henley, A. E. Fallick, Fallick, A.E., J. Dougans, A. Clarke, Ganeshram, R. S.; id_orcid, Annett, A.L., Annett, Amber, Weston, K., Henley, S.F., Annett, A. L., Ganeshram, R. S., Carson, D.S., D. S. Carson, K. Weston, Dougans, J., Fallick, A. E., A. L. Annett, Crosta, X., A. Tait, X. Crosta, Henley, S. F., Tait, A., Clarke, A.   +26 more
core   +1 more source

EDNRB‐dependent endothelin signaling reduces proliferation and promotes proneural‐to‐mesenchymal transition in gliomas

Molecular Oncology, EarlyView.
Glioma cells mainly express the endothelin receptor EDNRB, while EDNRA is restricted to a perivascular tumor subpopulation. Endothelin signaling reduces glioma cell proliferation while promoting migration and a proneural‐to‐mesenchymal transition associated with poor prognosis. This pathway activates Ca2+, K+, ERK, and STAT3 signalings and is regulated
Donovan Pineau, Leonor Garcia, Hugo Arnold, Antonija Hanžek, Maialen Arrieta, Laurent R Gauthier, Christine Granotier‐Beckers, François D Boussin, Amaury Herbet, Marie Hautière, Valentin Asei‐Ceschino, Clémentin Jacques, Laura Brard, Thomas Harnois, Valérie Coronas, Bruno Constantin, Aurélien Chatelier, Jean Chemin, Serge Urbach, Martial Seveno, Szimonetta Hideg, Chantal Ripoll, Kasandra Aguilar‐Cázarez, Min Zheng, Guo‐Hao Huang, Sheng‐Qing Lv, Lei Zhang, Philippe Rondard, Laurent Prezeau, Jean‐Philippe Pin, Hugues Duffau, Luc Bauchet, Valérie Rigau, Franck Denat, Charles Truillet, Didier Boquet, Jean‐Philippe Hugnot   +36 more
wiley   +1 more source

In situ analysis of surface composition and meteorology at the Zhurong landing site on Mars. [PDF]

Natl Sci Rev, 2023
Zhao YS, Yu J, Wei G, Pan L, Liu X, Lin Y, Liu Y, Sun C, Wang X, Wang J, Xu W, Rao Y, Xu W, Sun T, Chen F, Zhang B, Lin H, Zhang Z, Hu S, Li XY, Yu XW, Qu SY, Zhou DS, Wu X, Zeng X, Li X, Tang H, Liu J.   +27 more
europepmc   +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

Volatile Elements Characterized by MarSCoDe in Materials at Zhurong Landing Site

The Astronomical Journal
The study of volatile elements on the Martian surface is a critical way to explore the geological evolution history of Mars. Volatile elements such as hydrogen (H), sulfur (S), and chlorine (Cl) on the Martian surface act as proxies for the potential ...
Yizhong Zhang, Xin Ren, Zhaopeng Chen, Yuxuan Luo, Wangli Chen, Jianjun Liu, Xiangfeng Liu, Zhenqiang Zhang, Weiming Xu, Rong Shu, Chunlai Li   +10 more
doaj   +1 more source

Modification of the Surface Composition of PTB7-Th: ITIC Blend Using an Additive. [PDF]

Molecules, 2022
Alghamdi AR, Kirk BP, Kocak G, Andersson MR, Andersson GG.   +4 more
europepmc   +1 more source

Composition of Surface Materials on the Moons of Mars

, 2014
The two small asteroid-like bodies orbiting Mars, Phobos and Deimos, are low albedo and exhibit similar visible to near-infrared spectra. Determining the origin of these moons is closely tied to determining their composition. From available spectroscopic
Murchie, Scott, Pieters, Carle M., Britt, Daniel, Thomas, Nicolas   +3 more
core   +1 more source

Dual PI3K/AKT and CDK4/6 inhibition reveals selective sensitivity in an SHH medulloblastoma stem cell model

Molecular Oncology, EarlyView.
Targeted therapy was evaluated in SHH medulloblastoma using neuroepithelial stem cell (NES) and tumor‐derived NES‐like (tNES) models in 2D monolayers and 3D spheroids. PI3K, AKT, and CDK4/6 inhibitors had minimal effects in NES but markedly reduced viability and growth and induced apoptosis in tNES cells, revealing distinct therapeutic vulnerabilities.
Monika Lukoseviciute, Madeleine Birgersson, Paolo Ceriani, Margareta Wilhelm, Ourania N Kostopoulou   +4 more
wiley   +1 more source

Detection of Molecular H2O on Nominally Anhydrous Asteroids

The Planetary Science Journal
We used the FORCAST instrument on SOFIA to obtain mid-infrared spectra (4.9–13.7 μ m) of four S-type asteroids: (7) Iris, (11) Parthenope, (18) Melpomene, and (20) Massalia. Three of these four silicate-rich asteroids (Iris, Melpomene, and Massalia) were
Anicia Arredondo, Margaret M. McAdam, Casey I. Honniball, Tracy M. Becker, Joshua P. Emery, Andrew S. Rivkin, Driss Takir, Cristina A. Thomas   +7 more
doaj   +1 more source

Toward a molecular understanding of the surface composition of atmospherically relevant organic particles. [PDF]

Proc Natl Acad Sci U S A, 2022
Qin Y, Wingen LM, Finlayson-Pitts BJ.
europepmc   +1 more source