Results 131 to 140 of about 3,424,751 (303)

Dark-ages Reionization and Galaxy Formation Simulation - X. The small contribution of quasars to reionization

, 2017
Motivated by recent measurements of the number density of faint AGN at high redshift, we investigate the contribution of quasars to reionization by tracking the growth of central supermassive black holes in an update of the Meraxes semi-analytic model ...
Angel, Paul W., Duffy, Alan R., Geil, Paul M., Liu, Chuanwu, Mesinger, Andrei, Mutch, Simon J., Poole, Gregory B., Qin, Yuxiang, Wyithe, J. Stuart B.   +8 more
core   +1 more source

The dependence of Martian ion escape on solar EUV irradiance as observed by MAVEN

Icarus (New York, N.Y. 1962), 2022
Y. Dong, D. Brain, R. Ramstad, X. Fang, J. Mcfadden, J. Halekas, F. Eparvier, J. Espley, J. Gruesbeck, B. Jakosky   +9 more
semanticscholar   +1 more source

siRNA Delivery via Cross‐Linked Gelatin Microparticles Enables Targeted Modulation of Osteogenic‐Vascular Cross‐Talk: An Advanced Human 3D in Vitro Test System for Therapeutic siRNA

Advanced Healthcare Materials, EarlyView.
Osteogenic‐angiogenic cross‐talk is a vital prerequisite for vascularized bone regeneration. In this study, we investigated the effects of siRNA‐mediated silencing of two inhibitory proteins, Chordin and WWP‐1, via CaP‐NP‐loaded gelatin microparticles in osteogenically differentiated microtissues.
Franziska Mitrach, Jonas Kubat, Stefan Simm, Alexandra H. Springwald, Burak Demir, Anton Liebezeit, Michael C. Hacker, Michaela Schulz‐Siegmund   +7 more
wiley   +1 more source

A Silicon Nanomembrane Detector for Matrix-Assisted Laser Desorption/Ionization Time-of-Flight Mass Spectrometry (MALDI-TOF MS) of Large Proteins

Sensors, 2013
We describe a MALDI-TOF ion detector based on freestanding silicon nanomembrane technology. The detector is tested in a commercial MALDI-TOF mass spectrometer with equimolar mixtures of proteins.
Jonghoo Park, Robert H. Blick
doaj   +1 more source

The escape of ionizing photons from supernova-dominated primordial galaxies

, 2009
In order to assess the contribution of Lyman break galaxies (LBGs) and Lyman alpha emitters (LAEs) at redshifts 36.Comment: 8 pages, 4 figures, accepted for publication in ...
Ajiki, Alvarez, Arimoto, Bouwens, Bouwens, Choudhury, Ciardi, Draine, Draine, Dunkley, Fan, Fan, Fioc, Fujita, Gabasch, Giallongo, Gibson, Gnedin, Gnedin, Gnedin, Gronwall, Haardt, Hidenobu Yajima, Iliev, Inoue, Inoue, Iwata, Iwata, Iye, Kawata, Kawata, Kitayama, Kodaira, Kodama, Kudritzki, Madau, Malhotra, Mannucci, Masao Mori, Masayuki Umemura, Mathews, Mathis, Mori, Mori, Mori, Nakamoto, Osterbrock, Ouchi, Ouchi, Page, Pettini, Razoumov, Razoumov, Rhoads, Salpeter, Sawicki, Shapley, Steidel, Steidel, Susa, Susa, Taishi Nakamoto, Taniguchi, Thoul, Tsai, Umemura, van Breukelen, Whalen, Wise, Yoshida   +69 more
core   +1 more source

From RNA to DNA: How Cargo Identity Reprograms Lipid Nanoparticle Architecture and Function

Advanced Healthcare Materials, EarlyView.
The evolution of lipid nanoparticles (LNPs) spans from RNA‐LNPs, used in mRNA vaccines, to DNA‐LNPs, ideal for gene therapies. Emerging bionano architectures, decorated with DNA and plasma proteins, pave the way for advanced DNA‐based therapies that are more stable, targeted, and customizable.
Erica Quagliarini, Daniela Pozzi, Giulio Caracciolo   +2 more
wiley   +1 more source

Nanotherapies for Atherosclerosis: Targeting, Catalysis, and Energy Transduction

Advanced Healthcare Materials, EarlyView.
Atherosclerosis management is hindered by poor drug targeting and plaque heterogeneity. Nanotechnology overcomes these barriers via three core strategies: (1) target‐engineered nanocarriers that achieve lesion‐specific precision via ligand modification, biomimetic camouflage, stimuli‐responsive release, and self‐propelling nanomotors; (2) catalytic ...
Yuqi Yang, Jingguo Qu, Tonghuan Xiao, Xinyang Han, Michael Tin‐Cheung Ying   +4 more
wiley   +1 more source

Pioneering the Future: Principles, Advances, and Challenges in Organic Electrodes for Aqueous Ammonium‐Ion Batteries

Advanced Materials, Volume 37, Issue 13, April 2, 2025.
Leveraging the numerous advantages of ammonium‐ion (NH₄⁺)—including cost‐effectiveness, low corrosiveness, preferential orientation, and rapid diffusion kinetics—aqueous NH₄⁺ batteries (AAIBs) have gained significant attention. This review highlights and evaluates the progress of AAIBs utilizing organic electrode materials such as small molecules ...
Mangmang Shi, Xiaoyan Zhang
wiley   +1 more source

Modeling Atmospheric Ion Escape from Kepler-1649 b and c over Time

The Astrophysical Journal Letters
Rocky planets orbiting M dwarf stars are prime targets for atmospheric characterization, yet their long-term evolution under intense stellar winds and high-energy radiation remains poorly constrained.
Haitao Li, Chuanfei Dong, Lianghai Xie, Xinyi He, Laura Chin, Xinke Wang, Hong-Liang Yan, Jinxiao Qin, Nathan Mayne, Mei Ting Mak, Nikolaos Georgakarakos, Duncan Christie, Yajun Zhu, Zhaojin Rong, Jinlian Ma, Xiaobo Li, Shi Chen, Hai Zhou   +17 more
doaj   +1 more source

Ferroelectric Quantum Dots for Retinomorphic In‐Sensor Computing

Advanced Materials, EarlyView.
This work has provided a protocol for fabricating retinomorphic phototransistors by integrating ferroelectric ligands with quantum dots. The resulting device combines ferroelectricity, optical responsiveness, and low‐power operation to enable adaptive signal amplification and high recognition accuracy under low‐light conditions, while supporting ...
Tingyu Long, Huanyu Zhou, Jaewan Ko, Hongwei Tan, Jaemin Lim, Yanfei Zhao, Daehan Kang, Eojin Yoon, Gyeong‐Tak Go, Somin Kim, Seung‐Woo Lee, Chan‐Yul Park, Hyojun Choi, Hyeran Kim, Hyung Joong Yun, Sung Hyuk Park, Kwan Sik Park, Jeong Woo Park, Mungeun Kim, Yong Soo Cho, Ho Won Jang, Wenqiang Yang, Min Hyuk Park, Wan Ki Bae, Sebastiaan van Dijken, Joona Bang, Tae‐Woo Lee   +26 more
wiley   +1 more source