Results 131 to 140 of about 2,844,597 (383)

Small Satellites: National Regulatory Challenges

Teisė, 2019
[full article, abstract in English; abstract in Lithuanian] This article analyses the regulation of space activities, especially small satellites activities. Its purpose is to analyse the relevant international legal framework and discuss the possible
Asta Tūbaitė-Stalauskienė
doaj   +1 more source

Tuning Aggregation in Liquid‐Crystalline Squaraine Chromophores

Advanced Science, EarlyView.
A novel squaraine dye (SQ) forming columnar liquid crystal (LC) phase is synthesized, whose aggregate state can be tuned without disturbing the columnar structures. The liquid crystallization not only offers a rich spectrum and tuning method of optical property but also a novel path for the prescriptive functionalization of LC SQ materials.
Tianyi Tan, Yu Cao, Changlong Chen, Sanliang Ling, Gaolei Hou, Martin J. Paterson, Xin Wang, Ying Chen, Kai Jiang, Gang He, Goran Ungar, Georg H. Mehl, Feng Liu   +12 more
wiley   +1 more source

A Rapid Cortical Learning Process Supporting Students’ Knowledge Construction During Real Classroom Teaching

Advanced Science, EarlyView.
There is growing interest in understanding how classroom teaching works, but previous theories and studies leave a gap in the neurocognitive mechanisms involved in real classroom teaching. Here we show that during real classroom teaching, students' middle frontal cortex serves as a hub of a rapid cortical learning process, supporting their knowledge ...
Xiaodan Feng, Xinran Xu, Zhaonan Meng, Jiahao Jiang, Miao Pei, Yonghe Zheng, Chunming Lu   +6 more
wiley   +1 more source

Manipulating Charge Dynamics in Carbon Nitride by Carbon Dot Doping for Efficient Photocatalysis

Advanced Science, EarlyView.
A series of carbon dot (CD) doped graphitic carbon nitride (g‐C3N4) materials have been rationally synthesized, which exhibited different photophysical properties, excitonic behaviors, and photocatalytic degradation activities. It provides valuable insights to deepen the understanding of exciton dynamics based on g‐C3N4 materials, and rational design ...
Lingfeng Ouyang, Maggie Ng, Zhang‐Hong Zhou, Hao Wu, Man‐Chung Tang, Season Si Chen   +5 more
wiley   +1 more source

On the Laws of Electromagnetic Induction [PDF]

arXiv, 2011
The Faraday-Ampere laws of electro-magnetic induction are formulated in terms of plain and twisted differential forms, taking in due account the body motion in terms of Lie time-derivatives. Covariance of Lie derivatives with respect to arbitrary relative motions, and Galilei invariance of the electro-magnetic fields, imply Galilei invariance of the ...
arxiv  

Project Khepri: Asteroid Mining Project. Final Policy Report [PDF]

, 2022
Much like outer space, our legal system consists of many unknowns. This is especially true for new developments in emerging technologies, particularly those related to the exploration, exploitation, and utilization of space resources.
Groh, Aaron, Miklaucic, Brieanna, Oosterveld, Valerie, Steyn, Elizabeth   +3 more
core   +1 more source

Dual‐Atom Catalyst Au@S‐rGO for Rapid and Highly Sensitive Electrochemical Detection of Fentanyl in Serum

Advanced Science, EarlyView.
This study develops an Au/S‐doped reduced graphene oxide (Au@S‐rGO) sensor for rapid fentanyl detection. DFT simulations and structural analysis confirm atomically dispersed Au/S configurations, enhancing catalytic activity. The sensor achieves a 9.7 nmol L−1 detection limit, 98–104% recovery in human serum, and 85.7–93.6% consistency with mass ...
Meng Li, ZhiJin Fan, Qiuxia Gao, Ying He, Anyun Xu, Zhaofeng Gu, Shixiong Wang, Huiping Bai, Yuhui Liao, Ruilin Zhang   +9 more
wiley   +1 more source

INTERNATIONAL SPACE LAW AND LEGAL ENTITIES

Proceedings of the Institute of State and Law of the RAS, 2020
From the very beginning of the space activity in the middle of the XX cen tury the whole of it was considered mostly from the point of view of the military use of outer space. The only subjects of the space activity were states. All legal regulation of the activity was formatted by states.
openaire   +1 more source

Mechanical Load‐Induced Upregulation of Talin2 through Non‐Canonical Deubiquitination of OTUB1 Drives Facet Joint Osteoarthritis Pathogenesis

Advanced Science, EarlyView.
Facet joint osteoarthritis (FJOA), prevalent in the elderly, involves Talin2 upregulation promoting ECM degradation while suppressing synthesis. Mechanical load stabilizes Talin2 via OTUB1‐mediated non‐canonical deubiquitination, driving CCL2 expression that recruits immune cells, exacerbating inflammatory joint degeneration.
Yizhen Huang, Heng Sun, Haojie Chen, Xiangpeng Wang, Junduo Zhao, Yang Jiao, Hongyi Zhou, Haoyu Cai, Jiafeng Dai, Xuan Huang, Weiyun Chen, Jianxiong Shen   +11 more
wiley   +1 more source

Targeting in Outer Space: An Exploration of Regime Interactions in the Final Frontier [PDF]

, 2020
Space infrastructure is now integral to both civilian life and warfare. Belligerents may find great military advantage in destroying a satellite in orbit, but this could have grave consequences for civilians on earth and create long-lasting space debris.
Georgeson, Caitlyn, Stubbs, Matthew T
core   +1 more source