Results 31 to 40 of about 11,621 (252)

Global Space Security and Counter-space Capabilities: the Legal and Political Challenges

Przegląd Prawniczy Uniwersytetu im. Adama Mickiewicza, 2019
This article undertakes a very sensitive issue: space security and counterspace capabilities and arms control. Those issues come under the sovereignty of each state and are strictly connected to national defense and policy.
Małgorzata Polkowska
doaj   +1 more source

Integrated Space Situational Awareness Systems: SDA and SSA – Advantages and Limitations

Polish Political Science Yearbook, 2021
SDA (Space Domain Awareness) and SSA (Space Situational Awareness – SSA) have been defined as comprehensive knowledge of space objects and the ability to track, understand, and predict their future location.
Małgorzata Polkowska
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Global Validation and Characterization of the Ionospheric Bottomside Thickness (B₀) Using Fengyun-3 Radio Occultation Observations

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
The bottomside thickness parameter (B0) is a critical component for accurately representing electron density profiles in the International Reference Ionosphere (IRI) model.
Guangyuan Tan, Weihua Bai, Xiangguang Meng, Yueqiang Sun, Qifei Du, Xianyi Wang, Congliang Liu, Junming Xia, Peng Hu, Cong Yin, Feixiong Huang, Ruhan Wu   +11 more
doaj   +1 more source

A Diverse Space Target Dataset With Multidebris and Realistic On-Orbit Environment

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022
As the number of space targets increases year by year, space situational awareness plays an important role in satellite security. To keep satellite secure, we use space target monitoring, removal, and avoidance to complete space situational awareness ...
Zipeng Zhang, Chenwei Deng, Zhiyuan Deng
doaj   +1 more source

Topside Total Electron Content Retrieval and Validation Using FY-3 G GNOS-II Observations

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
The Fengyun-3 G (FY-3 G) satellite equipped with a Global Navigation Occultation Sounder II (GNOS-II) is capable of tracking BeiDou Navigation Satellite System (BDS) and Global Positioning System (GPS) dual-frequency signals by its zenith precise orbit ...
Peng Hu, Guangyuan Tan, Wenqiang Lu, Weihua Bai, Xiangguang Meng, Guanglin Yang, Weiguo Zong, Yueqiang Sun, Qifei Du, Xianyi Wang, Jian Shang, Xiuqing Hu, Na Xu, Xiangang Zhao, Jinsong Wang, Congliang Liu, Ruhan Wu   +16 more
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A Depolarizing Leak in Sodium Bicarbonate Cotransporter NBCe1 Causes Brain Edema

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objectives SLC4A4 encodes electrogenic sodium bicarbonate cotransporter NBCe1, prominently expressed in kidney and brain. Recessive loss‐of‐function variants in SLC4A4 cause proximal renal tubular acidosis, no brain edema. In the brain, NBCe1 is expressed by astrocytes, where it regulates pH and mediates astrocyte volume changes.
Quinty Bisseling, Mark D. Parker, Sven Kerst, Richard A. Pasternack, Jacob Tondreau, Marjolein Breur, Gemma M. van Rooijen‐van Leeuwen, Davide Tonduti, Ettore Salsano, Alejandra Darling, Joanna A. E. van Wijk, Susanna Törnroth‐Horsefield, Marianna Bugiani, Petra J. W. Pouwels, Quinten Waisfisz, Marjo S. van der Knaap, Rogier Min   +16 more
wiley   +1 more source

Comparison of accelerometer data calibration methods used in thermospheric neutral density estimation [PDF]

Annales Geophysicae, 2018
Ultra-sensitive space-borne accelerometers on board of low Earth orbit (LEO) satellites are used to measure non-gravitational forces acting on the surface of these satellites.
K. Vielberg, E. Forootan, E. Forootan, C. Lück, A. Löcher, J. Kusche, K. Börger   +6 more
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Effectiveness of rTMS on Working Memory and Inhibitory Impairments in Patients With Post‐Stroke Executive Deficits

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Considerable efforts have been dedicated to developing effective treatments for post‐stroke executive impairment (PSEI), among which repetitive transcranial magnetic stimulation (rTMS) has shown great potential. This study aimed to investigate the therapeutic effects of high‐frequency rTMS on working memory (WM) and response ...
Mengting Lao, Rongwei Du, Zhujun Wang, Yang Gao, Meiling Cheng, Xianglong Wang, Wen Wu   +6 more
wiley   +1 more source

Integrating Patient‐Reported Quality Measures in Systemic Lupus Erythematosus: Development of the American College of Rheumatology Implementation Guide

Arthritis Care &Research, EarlyView.
Objective To support high‐quality, patient‐centered care for systemic lupus erythematosus (SLE), the American College of Rheumatology (ACR) developed evidence‐based measures incorporating clinical and patient‐reported outcome measures (PROMs). Using the Consolidated Framework for Implementation Research (CFIR), we conducted semistructured interviews ...
Catherine Nasrallah, Cherish Wilson, Christine Hariz, Christie M. Bartels, Shanthini Kasturi, Wambui Machua, Amy Bennett, Kate Chiseri, Allison Plitman, Starla Hairston Blanks, April Jorge, Patti Katz, Jinoos Yazdany, Shivani Garg   +13 more
wiley   +1 more source

Sea Ice Concentration Retrieval in the Arctic and Antarctic Using FY-3E GNSS-R Data

Remote Sensing
Recognizing the critical role of polar Sea Ice Concentration (SIC) in climate feedback mechanisms, this study presents the first comprehensive investigation of China’s Fengyun-3E(FY-3E) GNOS-II Global Navigation Satellite System Reflectometry (GNSS-R ...
Tingyu Xie, Cong Yin, Weihua Bai, Dongmei Song, Feixiong Huang, Junming Xia, Xiaochun Zhai, Yueqiang Sun, Qifei Du, Bin Wang   +9 more
doaj   +1 more source