Results 81 to 90 of about 256,786 (320)

A Study on the "Bocheonga" of Joseon and China [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2009
Korean historical constellations and their names are similar to Chinese ones. Although Korean historical astronomy is influenced by China, they have distinct differences in each shape and names of the constellations. We, therefore, compare Bocheonga (步天歌)
Sang Hyuk Kim   +3 more
doaj   +1 more source

Design of fully diverse multiple-antenna codes based on Sp(2) [PDF]

open access: yes, 2003
Fully diverse constellations, i.e., sets of unitary matrices whose pairwise differences are nonsingular, are useful in multiple-antenna communications, especially in multiple-antenna differential modulation, since they have good pairwise error properties.
Hassibi, Babak, Jing, Yindi
core   +1 more source

Impact of Satellite Constellations on Optical Astronomy and Recommendations Toward Mitigations

open access: yes, 2020
In May 2019 SpaceX launched its first batch of 60 Starlink communication satellites, which surprised astronomers and laypeople with their appearance in the night sky.
ConstanceWalker   +39 more
semanticscholar   +1 more source

ATF4‐mediated stress response as a therapeutic vulnerability in chordoma

open access: yesMolecular Oncology, EarlyView.
We screened 5 chordoma cell lines against 100+ inhibitors of epigenetic and metabolic pathways and kinases and identified halofuginone, a tRNA synthetase inhibitor. Mechanistically halofuginone induces an integrated stress response, with eIF2alpha phosphorylation, activation of ATF4 and its target genes CHOP, ASNS, INHBE leading to cell death ...
Lucia Cottone   +11 more
wiley   +1 more source

Therapeutic strategies for MMAE‐resistant bladder cancer through DPP4 inhibition

open access: yesMolecular Oncology, EarlyView.
We established monomethyl auristatin E (MMAE)‐resistant bladder cancer (BC) cell lines by exposure to progressively increasing concentrations of MMAE in vitro. RNA sequencing showed DPP4 expression was increased in MMAE‐resistant BC cells. Both si‐DPP4 and the DPP4 inhibitor sitagliptin suppressed the viability of MMAE‐resistant BC cells.
Gang Li   +10 more
wiley   +1 more source

Value-Based Business-IT Alignment in Networked Constellations of Enterprises [PDF]

open access: yes, 2005
Business-ICT alignment is the problem of matching ICTservices with the requirements of the business. In businesses of any significant size, business-ICT alignment is a hard problem, which is currently not solved completely.
Eck, Pascal van   +2 more
core   +3 more sources

Peroxidasin enables melanoma immune escape by inhibiting natural killer cell cytotoxicity

open access: yesMolecular Oncology, EarlyView.
Peroxidasin (PXDN) is secreted by melanoma cells and binds the NK cell receptor NKG2D, thereby suppressing NK cell activation and cytotoxicity. PXDN depletion restores NKG2D signaling and enables effective NK cell–mediated melanoma killing. These findings identify PXDN as a previously unrecognized immune evasion factor and a potential target to improve
Hsu‐Min Sung   +17 more
wiley   +1 more source

Reading the Stars of the Renaissance. Fritz Saxl and Astrology [PDF]

open access: yesJournal of Art Historiography, 2011
This article discusses Fritz Saxl’s publications on astrological images from the western Middle Ages and Renaissance, from his early study on the representation of the planets (1912), via his catalogues of astrological and mythological manuscripts (1915 ...
Rembrandt Duits
doaj  

Veiled Constellations

open access: yesAmerican Journal of Islam and Society, 2010
The “Veiled Constellations: The Veil, Critical Theory, Politics, and Contemporary Society” conference took place at York University’s Keele Campus and at the University of Toronto on 3-5 June 2010.
Megan MacDonald
doaj   +1 more source

A Distributed Survivable Routing Algorithm for Mega-Constellations With Inclined Orbits

open access: yesIEEE Access, 2020
Mega-constellations consisting of hundreds to thousands of low-earth-orbit (LEO) satellites are an attractive solution for providing global ubiquitous network access.
Xiaoxin Qi, Bing Zhang, Z. Qiu
semanticscholar   +1 more source

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