Results 71 to 80 of about 170,202 (384)

The star-formation history of the Milky Way Galaxy

, 2009
The star-formation histories of the main stellar components of the Milky Way constrain critical aspects of galaxy formation and evolution. I discuss recent determinations of such histories, together with their interpretation in terms of theories of disk ...
Bensby, Bensby, Bensby, Cignoni, Famaey, François, Maiolino, Nordström, Rocha-Pinto, Rosemary F. G. Wyse, Wyse, Wyse   +11 more
core   +1 more source

The Role of Dust in the Early Universe I : Protogalaxy Evolution [PDF]

, 2011
We develop one-zone galaxy formation models in the early Universe, taking into account dust formation and evolution by supernova (SN) explosions. Especially we focus on the time evolution of dust size distribution, because ${\rm H}_{2}$ formation on the ...
Asao Habe, Bigiel, Bromm, Cazaux, Cherchneff, Cox, Daisuke Yamasawa, Draine, Dwek, Dwek, Gallerani, Galli, Glover, Gnedin, Granato, Greif, Heger, Heger, Hideyuki Umeda, Hiroyuki Hirashita, Inoue, Jappsen, Jappsen, Jappsen, Joggerst, Joggerst, Ken'ichi Nomoto, Kennicutt, Kitayama, Kitayama, Kitayama, Kozasa, Krumholz, Krügel, Li, Machacek, Mackey, Nath, Nozawa, Nozawa, Nozawa, Nozawa, Nozawa, O'Shea, Omukai, Omukai, Omukai, Robertson, Sibthorpe, Silva, Silvia, Smith, Spergel, Susa, Susa, Takashi Kozasa, Takaya Nozawa, Tegmark, Umeda, Whalen, Whalen, Wise, Wise, Wise, Wise, Wolfe, Yoshida   +66 more
core   +2 more sources

NNMT Orchestrates Metabolic‐Epigenetic Reprogramming to Drive Macrophage‐Myofibroblast Transition in Hypertrophic Scarring

Advanced Science, EarlyView.
In macrophage‐myofibroblast transition, upregulated NNMT depletes S‐Adenosylmethionine‌ (SAM) and nicotinamide adenine dinucleotide(NAD+), thereby triggering epigenetic reprogramming via Histone H3 Lysine 27 acetylation (H3K27ac) accumulation at the promoter region of master transcription factor Prrx1.
Xiwen Dong, Weinan Guo, Yuxuan Qian, Wenyan Jin, Xiaozhen Li, Jingyuan Yang, Qingrong Ni, Shuang Wu, Fanni Li, Hua Wang, Chunying Li, Hong Cai   +11 more
wiley   +1 more source

The impact of early massive galaxy formation on the cosmic microwave background

Nuclear Physics B
The Cosmic Microwave Background (CMB) anisotropies, corrected for foreground effects, form the foundation of cosmology and support the Big Bang model.
Eda Gjergo, Pavel Kroupa
doaj   +1 more source

Long‐Term Elevated CO2 Improves Soil Health and Rice Yields in Paddy Fields

Advanced Science, EarlyView.
Combining the two longest‐running rice free‐air CO2 enrichment experiments with a global data synthesis, this study demonstrates that long‐term elevated CO2 consistently enhances soil health. In rice paddies, this improvement sustains the CO2 fertilization effect over decades.
Fan Jiang, Wenchao Du, Kees Jan van Groenigen, Josep Peñuelas, Scott X. Chang, Lian Song, Chuang Cai, Yu Wang, Lin Deng, Zhengkun Hu, Weishou Shen, Qicong Wu, Haiyang Yu, Ying Yin, Fuxun Ai, Wei Zhou, Dongming Wang, Jianqiang Sun, Xiaoyuan Yan, Renfang Shen, Jiabao Zhang, Hongyan Guo, Chunwu Zhu   +22 more
wiley   +1 more source

Simulating galaxy formation with the IllustrisTNG model [PDF]

, 2017
We introduce an updated physical model to simulate the formation and evolution of galaxies in cosmological, large-scale gravity+magnetohydrodynamical simulations with the moving mesh code AREPO.
A. Pillepich, V. Springel, D. Nelson, S. Genel, J. Naiman, R. Pakmor, L. Hernquist, P. Torrey, M. Vogelsberger, R. Weinberger, F. Marinacci   +10 more
semanticscholar   +1 more source

A Degradable Bioinspired Flier with Aerogel‐Based Colorimetric Sensors for Environmental Monitoring

Advanced Science, EarlyView.
Biodegradable fliers are developed inspired by Tipuana tipu samaras, integrating cellulose nanocrystal aerogel (CNCa) sensors loaded with natural dyes for pH and ammonia detection. The lightweight, degradable fliers mimic natural morphology and aerodynamics, offering an eco‐friendly, scalable solution for in situ environmental monitoring after passive ...
Gianpaolo Gallo, Ruowen Tu, Carlo Filippeschi, Stefano Mariani, Barbara Mazzolai   +4 more
wiley   +1 more source

On the Determination of Star Formation Rates in Evolving Galaxy Populations [PDF]

, 2000
The redshift dependence of the luminosity density in certain wavebands (e.g. UV and H-alpha) can be used to infer the history of star formation in the populations of galaxies producing this luminosity.
B. Mobasher, Bressan A., Fioc M., J. Afonso, L. Cram, Madau P., Pozzetti L., Rowan-Robinson M.   +7 more
core   +2 more sources

Modelling the formation and evolution of star cluster populations in galaxy simulations [PDF]

, 2011
The formation and evolution of star cluster populations are related to the galactic environment. Cluster formation is governed by processes acting on galactic scales, and star cluster disruption is driven by the tidal field.
J. Kruijssen, F. I. Pelupessy, Henny Lamers, S. P. Portegies Zwart, V. Icke   +4 more
semanticscholar   +1 more source

Edible Pneumatic Battery for Sustained and Repeated Robot Actuation

Advanced Science, EarlyView.
This work presents an edible energy source and valve system to power soft, pneumatically driven edible robots. A chemical reaction between sodium bicarbonate and citric acid generates carbon dioxide gas, and a pressure‐triggered edible valve enables self‐repetitive motion of the edible actuator.
Bokeon Kwak, Shuhang Zhang, Alexander Keller, Qiukai Qi, Jonathan Rossiter, Dario Floreano   +5 more
wiley   +1 more source