Results 71 to 80 of about 520,741 (384)

Eclipse or Empire? [PDF]

open access: yesNature, 1916
THIS book will serve the useful purpose of directing popular attention afresh to the important questions of education and scientific research in relation to national prosperity, on which so many eminent scientific men have given emphatic warnings. It is the joint production of a scholar and of a man of business, and although primarily addressed to the ...
openaire   +3 more sources

A Smoothed Eclipse Model for Solar Electric Propulsion Trajectory Optimization

open access: yesTRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES AEROSPACE TECHNOLOGY JAPAN, 2019
Solar electric propulsion (SEP) is the dominant design option for employing low-thrust propulsion on a space mission. Spacecraft solar arrays power the SEP system but are subject to blackout periods during solar eclipse conditions. Discontinuity in power
Jonathan D. Aziz   +3 more
semanticscholar   +1 more source

Considerations for Issues of Regression to the Mean and Contextual Effects in Clinical Trials for Pain in Rheumatic Diseases

open access: yesArthritis Care &Research, Accepted Article.
Recently, there has been growing discussion about how to best assess pain in clinical trials in rheumatic diseases. Reliable measurement of pain outcomes is essential for accurately determining the effectiveness of treatments. While pain intensity is the most common measure of change in pain trials, other pain‐related measures, such as pain ...
Yen T. Chen   +4 more
wiley   +1 more source

Total Solar Eclipse, January 24, 1925 [PDF]

open access: yes, 1925
On January 24, 1925, a total eclipse of the sun was visible throughout much of New England.
DeWolf, Halsey
core   +1 more source

PREDICTING THE α COMAE BERENICES TIME OF ECLIPSE: HOW 3 AMBIGUOUS MEASUREMENTS OUT OF 609 CAUSED A 26 YEAR BINARY’S ECLIPSE TO BE MISSED [PDF]

open access: yes, 2015
The dwarf stars in the 26 year period binary α Com were predicted to eclipse each other in early 2015. That prediction was based on an orbit model made with over 600 astrometric observations using micrometers, speckle interferometry, and long baseline ...
M. Muterspaugh   +9 more
semanticscholar   +1 more source

Impact of 21 June 2020 Annular Solar Eclipse on Meteorological Parameters, O3 and CO at a High Mountain Site in Taiwan

open access: yesAerosol and Air Quality Research, 2022
The annular solar eclipse observed on 21 June 2020 over Taiwan provided a rare opportunity to follow the responses of various meteorological parameters and trace gases to the solar eclipse.
Saginela Ravindra Babu   +3 more
doaj   +1 more source

RRP9 Promotes Esophageal Squamous Cell Carcinoma Progression through E2F1 Transcriptional Regulation of CDK1

open access: yesAdvanced Biology, EarlyView.
The study reveals that RRP9 is abnormally highly expressed in ESCC tissues and is closely associated with poor prognosis in patients. Furthermore, it is found that RRP9 promotes ESCC progression through enhancing the E2F1‐mediated transcriptional regulation of CDK1.
Gang He   +14 more
wiley   +1 more source

A Spitzer Five-Band Analysis of the Jupiter-Sized Planet TrES-1 [PDF]

open access: yes, 2014
With an equilibrium temperature of 1200 K, TrES-1 is one of the coolest hot Jupiters observed by {\Spitzer}. It was also the first planet discovered by any transit survey and one of the first exoplanets from which thermal emission was directly observed ...
Bowman, M. Oliver   +6 more
core   +3 more sources

Eclipse of the Moon [PDF]

open access: yesNature, 1870
THE eclipse of Tuesday evening (July 12) exhibited some interesting variations in tint and degree of illumination in different parts of the shadow. There seems to have been a dark spot, perhaps half the moon's diameter, about the centre of the umbra, nearly, if not quite, free from refracted light; outside this a ruddy zone; and beyond this again, to ...
openaire   +2 more sources

Mal tiempo en Bagdad: al-Ṭurṭūšī y el “eclipse” de 478/1085-1086

open access: yesAl-Qantara : Revista de Estudios Arabes, 2019
El artículo analiza un pasaje autobiográfico de la vida de al-Ṭurṭūšī (c. 451/1059-520/1126, o Ŷumādā al-awwal 525/abril de 1131) contenido en el Siyar A‘lām al-Nubalā’ de al-Ḏahabī (673/1274-748/1348).
David J. Wasserstein
doaj   +1 more source

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