Results 141 to 150 of about 247,098 (313)

Space Debris Observation Using Star Sensors Based on Scanning Circle Model

IEEE Access
With the large-scale deployment of mega-constellations, the number of on-orbit star sensors is rapidly increasing. Building on the advancements in star sensor detection capabilities, this paper proposes utilizing star sensors as dual-purpose sensors to ...
Fei Feng, Xia Wang, Wei Qi, Huisheng Yao, Zeyu Dong   +4 more
doaj   +1 more source

Meteorix: a cubesat mission dedicated to the detection of meteors and space debris

, 2019
International audienceWe present a universitary CubeSat space mission called Meteorix dedicated to the detection and characterization of meteors and space debris.
Vaubaillon, Jérémie, Galayko, Dimitri, Capderou, Michel, Rault, Jean-Louis, Zanda, Brigitte, Boisse, Patrick, Deleflie, Florent, Lacassagne, Lionel, Guignan, Gabriel, Birlan, Mirel, Hauchecorne, Alain, Rambaux, Nicolas, Levasseur-Regourd, Anny Chantal, Deshours, Frédérique, Keckhut, Philippe, Colas, François   +15 more
core  

Mesenchymal Stromal Cell‐Mediated Intercellular Communication: Mapping the Interactome for Skeletal Muscle Homeostasis and Regeneration

Advanced Science, EarlyView.
Liu et al. define a systems‐level interactome of fibroadipogenic progenitor (FAP)‐mediated signaling in skeletal muscle by integrating single‐cell transcriptomics with FAP depletion‐based perturbation analysis. Functional interrogation using a conditioned media bioassay links predicted signaling to multicellular outcomes, establishing a framework to ...
Xingyu Liu, Edgar E. Perez Carbajal, Yih‐Chii Hwang, Sahil A. Mapkar, Benjamin W. Gilman, Sarah A. Bliss, Lam B. Tran, Kalgi T. Mehta, Jacob O. Banyasz, Ming Yu, Reynold R. Liu, Matthew N. Ly, Christapher S. Morrissey, Michael N. Wosczyna   +13 more
wiley   +1 more source

AI-Enabled Frequency Diverse Array Spaceborne Surveillance Radar for Space Debris and Threat Detection Under Resource Constraints

Remote Sensing
Ensuring space environment security through the detection of space debris and non-cooperative threat objects has become a critical mission for next-generation spaceborne surveillance systems.
Dayan Guo, Tianyao Huang, Zijian Lin, Jie He, Yue Qi   +4 more
doaj   +1 more source

CDK4/6 Inhibition Induces CD8+ T Cell Antitumor Immunity via MIF‐Induced Functional Orchestration of Tumor‐Associated Macrophages

Advanced Science, EarlyView.
CDK4/6 inhibition promotes CD8+ T cell expansion through tumor‐macrophage crosstalk by activating HIF‐1α and enhancing MIF‐CD44/CD74 signaling. This reprograms TAMs to boost MHC‐I antigen presentation, and CDK4/6 inhibitor‐trained M1 TAM supernatant therapy synergizes with low‐dose PD‐1 blockade to restore antitumor immunity.
Lin He, Yuzhong Peng, Lat‐lun Leong, Jingbo Zhou, Dongyang Tang, Weilu Wang, Xiaoran Wu, Josh haipeng Lei, Yongqin Ye, Yangyang Feng, Yunfeng Qiao, Xiangpeng Chu, Di Mu, Qi Zhao, Tzuming Liu, Yan Chen, Paul Kwonghang Tam, Chu‐Xia Deng   +17 more
wiley   +1 more source

Design and Modelling of a Compact Dual-Purpose Star Tracker and Debris Detector for Small Satellites: Straylight, Thermal, and Structural

Aerospace
In this paper the design, modelling, and performance assessment of a miniaturised dual-purpose optical instrument for small satellites are presented. The instrument can function as a star tracker and as a space-debris detection camera.
João P. Castanheira, Beltran N. Arribas, Geraldo Rodrigues, Pedro Marinho, Rui Melicio, Miguel C. Fialho, Paulo Gordo, André R. R. Silva   +7 more
doaj   +1 more source

Marburg Virus Glycoprotein Is a Remarkable Virulent Factor Linked to Hemorrhagic Pathology: Evidence from Multimodal Experimental Systems

Advanced Science, EarlyView.
By integrating data from in vitro, ex vivo, and in vivo models, our research identifies the MARV glycoprotein as a remarkable hemorrhagic factor, filling a major gap in this important field. It also provides practical experimental tools for the basic research on viral pathogenesis and applied research aimed at antiviral intervention for hemorrhagic ...
Ting Yao, Hang Liu, Yanfeng Yao, Wei Deng, Jiawen Sun, Zhenyu Kang, Ashaq Ali, Chao Shan, Zhiming Yuan, Fei Deng, Hualin Wang, Yun‐Jia Ning   +11 more
wiley   +1 more source

Paternal Circadian Disruption Impairs Offspring Cognition via Sperm microRNAs

Advanced Science, EarlyView.
Paternal circadian disruption remodels the sperm small RNA payload, elevating miR‐92a‐3p/miR‐25‐3p levels and perturbing early embryonic gene regulatory programs. Microinjection experiments and single‐embryo transcriptomics reveal sex‐specific developmental vulnerabilities, ultimately impairing offspring hippocampal synaptic plasticity and cognition ...
Kexin Zou, Sisi Luo, Binliang Tang, Zhiqiang Liu, Yuchuan Zhou, Yicong Meng, Zhengmu Wu, Zheng Sun, Weihui Shi, Jianzhong Sheng, Chuanjin Yu, Zhenhua Li, Siyi Wei, Mo Zhang, Yujie Luo, Jing Yan, Xueyun Qin, Jiahang Mo, Chengliang Zhou, Jinsong Li, Hefeng Huang, Yifu Ding, Guolian Ding   +22 more
wiley   +1 more source

JWST/NIRSpec Detects Warm CO Emission in the Terrestrial-planet Zone of HD 131488

The Astrophysical Journal
We have obtained a high-resolution, JWST NIRSpec 2.87–5.14 μ m spectrum of the debris disk around HD 131488. We discover CO fundamental emission indicating the presence of warm fluorescent gas within ∼10 au of the star.
Cicero X. Lu, Isabel Rebollido, Sean Brittain, Tracy Beck, Christine H. Chen, Kadin Worthen, Joan Najita, Chen Xie, Aoife Brennan, Amaya Moro-Martin, John Debes, Kevin France, Luca Matrà, Marshall Perrin, Aki Roberge   +14 more
doaj   +1 more source

DOT1L Drives Endothelial‐to‐Mesenchymal Transition and Fibrotic Vascular Remodeling via H3K79 Methylation

Advanced Science, EarlyView.
DOT1L as a central epigenetic regulator of EndoMT and pulmonary fibrosis. Acting as an early epigenetic switch, it translates TGFβ–SMAD signaling into H3K79me2‐mediated chromatin remodeling, selectively activates fibrosis‐related genes, and primes ECs for rapid mesenchymal transition.
Yaofeng Wang, Xing Peng, Jingjing Chen, Yun Zhang, Tinghong Zhang, Jingyuan Zhang, Jiaying Fan, Hui Zheng, Qiaoyuan Liu, Zhimin Song, Zhan‐Peng Huang, Shu Meng   +11 more
wiley   +1 more source