Results 171 to 180 of about 1,344 (291)

A new method to analyze UV stellar occultation data

, 2017
International audienceSPICAV stellar occultation measurements in the UVcomposed a huge dataset concerning verticaldistributions of CO2, SO2 and O3 abundances on thenight side of Venus mesosphere (80-130 km). Besidethose absorption features the instrument
Belyaev, Denis, Evdokimova, Daria, Baggio, Lucio, Bertaux, Jean-Loup, Montmessin, Franck   +4 more
core   +1 more source

Direct detection of an asteroid's heliocentric deflection: The Didymos system after DART. [PDF]

Sci Adv
Makadia R, Chesley SR, Herald D, Farnocchia D, Chabot NL, Naidu SP, Rivkin AS, Siakas A, Souami D, Tanga P, Tsavdaridis S, Tsiganis K, Bouquillon S, Eggl S.   +13 more
europepmc   +1 more source

Tumor‐Specific Delivery of CD28 siRNA via Lyso‐PC C‐16 Modified Lipid Nanoparticles Overcomes Anti‐PD‐1 Resistance by Remodeling Tumor Microenvironment

Advanced Science, EarlyView.
This study develops 16:0 LPC‐modified lipid nanoparticles (LPC‐LNPs) with cancer cell specificity by exploiting altered tumor lipid metabolism. LPC‐LNPs encapsulating Cd28 small interfering RNA (LPC‐LNP‐Cd28) knock down cancer cell CD28 without affecting T cells, inflame the tumor microenvironment, and overcome anti‐PD‐1 resistance.
Yangyang Chai, Keyu Wang, Jiali Fang, Shaorui Jia, Yansong Shi, Wanfeng Gao, Xinpeng Liu, Jiaqiang Li, Zenghui Cui, Yazhi Qian, Xiaosu Chen, Dan Ding, Xuetao Cao   +12 more
wiley   +1 more source

Occultation constraints on solar system formation models. [PDF]

Philos Trans A Math Phys Eng Sci
Buie MW, Keller JM, Nesvorný D, Porter SB.   +3 more
europepmc   +1 more source

Pronounced Suppression and X-Pattern Merging of Equatorial Ionization Anomalies After the 2022 Tonga Volcano Eruption. [PDF]

J Geophys Res Space Phys, 2022
Aa E, Zhang SR, Wang W, Erickson PJ, Qian L, Eastes R, Harding BJ, Immel TJ, Karan DK, Daniell RE, Coster AJ, Goncharenko LP, Vierinen J, Cai X, Spicher A.   +14 more
europepmc   +1 more source

Generation of Self‐Organizing Macrovascular Constructs by Bioprinting Human iPSC‐Derived Mesodermal Progenitor Cells

Advanced Science, EarlyView.
ABSTRACT Vascularization remains a major obstacle in tissue engineering. Here, we introduce a bioprinting strategy to generate centimeter‐scale, self‐organizing “mother vessel” constructs from iPSC‐derived hiMPCs. By optimizing bioink composition, printing was accomplished in a single‐step approach. Within one week, hiMPCs differentiated into both CD31+
Leyla E. Dogan, Nathaly A. Chicaiza‐Cabezas, Florian Kleefeldt, Philipp Wörsdörfer, Jürgen Groll, Süleyman Ergün   +5 more
wiley   +1 more source

RBM12 Maintains Glioma Stem Cells by Activating Amino Acid‐Dependent mTORC1 Signaling via SLC7A5 mRNA Stabilization

Advanced Science, EarlyView.
This study shows that in glioma stem cells (GSCs), RBM12 recruits ALKBH5 to remove m6A from SLC7A5 transcripts, thereby enhancing mRNA stability, which elevates large neutral amino acid (LNAA) levels and activates mTORC1, promoting GSC proliferation, self‐renewal, and tumor growth.
Hong Lei, Wenlong Luo, Shu Zhou, Lihao Wan, Peng Ling, Zhihua Huang, Zhihua Qian, Chenfei Lu, Mengyue Guo, Zhen Xue, Jun Qin, Ningwei Zhao, Jianghong Man, Wenchao Zhou, Zhiqiang Dong, Shutong Xu, Zhipeng Zhou, Xiuxing Wang, Weiwei Tao   +18 more
wiley   +1 more source

MAVEN IUVS in Stellar Occultation Mode: A First Look at Martian Atmospheric Density and Temperature Profiles

, 2015
International audienceWe will present a first series of results obtained by IUVS using stellar occultation, which allows one to retrieve CO2 density and temperature from 30 to 150 ...
Lefèvre, Franck, Schneider, N. M., Clarke, J., Deighan, Justin, Yelle, Roger, Holsclaw, Gregory M., Jakosky, Bruce M., Mcclintock, William E., Stewart, A. I., Montmessin, Franck   +9 more
core  

Geodetic Investigations of the Europa Clipper Mission. [PDF]

Space Sci Rev
Steinbrügge G, Park RS, Roberts JH, Bland M, Brooks S, Castillo-Rogez J, Cascioli G, Genova A, Greathouse T, Hussmann H, Kirk R, Magnanini A, Mazarico E, Nimmo F, Park MS, Petricca F, Retherford K, Schroeder DM, Soderlund KM, Tortora P, Zannoni M.   +20 more
europepmc   +1 more source

Neutron star mass estimates from gamma-ray eclipses in spider millisecond pulsar binaries. [PDF]

Nat Astron, 2023
Clark CJ, Kerr M, Barr ED, Bhattacharyya B, Breton RP, Bruel P, Camilo F, Chen W, Cognard I, Cromartie HT, Deneva J, Dhillon VS, Guillemot L, Kennedy MR, Kramer M, Lyne AG, Sánchez DM, Nieder L, Phillips C, Ransom SM, Ray PS, Roberts MSE, Roy J, Smith DA, Spiewak R, Stappers BW, Tabassum S, Theureau G, Voisin G.   +28 more
europepmc   +1 more source