Results 61 to 70 of about 4,099,821 (310)

Planar Magnetic Structures Downstream of Coronal Mass Ejection–driven Shocks in the Inner Heliosphere

open access: yesThe Astrophysical Journal, 2023
Planar magnetic structures (PMSs), characterized by interplanetary magnetic field vectors remaining parallel to a specific plane, are commonly observed in the solar wind, especially in the sheath region of interplanetary coronal mass ejections (ICMEs ...
Mengsi Ruan   +9 more
doaj   +1 more source

Regulation of space activities during1958-1963

open access: yesАналітично-порівняльне правознавство, 2023
Stagnation in the development of the process of regulation of relations in outer space and on celestial bodies as well as a large number of gaps and contradictions in this area along with impressive technical progress in the field of space activities ...
V.K. Marinich, M.I. Myklush, O.S. Yara
doaj   +1 more source

Embeddings between Barron spaces with higher order activation functions [PDF]

open access: yesarXiv, 2023
The approximation properties of infinitely wide shallow neural networks heavily depend on the choice of the activation function. To understand this influence, we study embeddings between Barron spaces with different activation functions. These embeddings are proven by providing push-forward maps on the measures $\mu$ used to represent functions $f$. An
arxiv  

Suited for spacewalking: A teacher's guide with activities [PDF]

open access: yes, 1992
This publication is an activity guide for teachers on spacesuits and spacewalking. It uses the intensive interest many children have in space exploration as a launching point for hands-on-opportunities.
Manning, Cheryl A., Vogt, Gregory L.
core   +1 more source

Identification of novel small molecule inhibitors of ETS transcription factors

open access: yesFEBS Letters, EarlyView.
ETS transcription factors play an essential role in tumourigenesis and are indispensable for sprouting angiogenesis, a hallmark of cancer, which fuels tumour expansion and dissemination. Thus, targeting ETS transcription factor function could represent an effective, multifaceted strategy to block tumour growth. The evolutionarily conserved E‐Twenty‐Six
Shaima Abdalla   +9 more
wiley   +1 more source

Spitzer Resurrector Mission: Advantages for Space Weather Research and Operations

open access: yesAerospace
In 1979, NASA established the Great Observatory program, which included four telescopes (Hubble, Compton, Chandra, and Spitzer) to explore the Universe.
Shawn M. Usman   +14 more
doaj   +1 more source

Low-energy particle radiation environment at synchronous altitude [PDF]

open access: yes, 1972
The degradation of thermal control coatings of satellites due to the effects of low energy charged particles in the space environment is discussed. Data obtained from ATS-5 satellite measurement of proton and electron fluxes are presented. The variations
Lens, S. K., Shelley, E. G.
core   +1 more source

Progger: an efficient, tamper-evident kernel-space logger for cloud data provenance tracking [PDF]

open access: yes, 2014
Cloud data provenance, or "what has happened to my data in the cloud", is a critical data security component which addresses pressing data accountability and data governance issues in cloud computing systems. In this paper, we present Progger (Provenance
Ko, Ryan K.L., Will, Mark Antony
core   +2 more sources

The cytoskeletal control of B cell receptor and integrin signaling in normal B cells and chronic lymphocytic leukemia

open access: yesFEBS Letters, EarlyView.
In lymphoid organs, antigen recognition and B cell receptor signaling rely on integrins and the cytoskeleton. Integrins act as mechanoreceptors, couple B cell receptor activation to cytoskeletal remodeling, and support immune synapse formation as well as antigen extraction.
Abhishek Pethe, Tanja Nicole Hartmann
wiley   +1 more source

Low-latitude ionospheric responses and positioning performance of ground GNSS associated with the geomagnetic storm on March 13–14, 2022

open access: yesFrontiers in Astronomy and Space Sciences
Interplanetary coronal mass ejections (ICMEs) and the driven geomagnetic storms have a profound influence on the ionosphere, potentially leading to a degradation in positioning performance.
Wenrui Li   +9 more
doaj   +1 more source

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