Results 31 to 40 of about 90,677 (316)

Sanskrit Recension of Persian Astronomy

open access: yesHistory of Science in South Asia, 2022
In the history of exchanges between Islamicate and Sanskrit astral sciences, Nityānanda's Siddhāntasindhu (c. early 1630s), composed at the court of the Mughal emperor Shāh Jahān (r.
Anuj Misra
doaj   +1 more source

Decline and Fall [PDF]

open access: yesMonthly Review, 1960
However stifling the policies of the United States since World War II, American progressives have assumed that some bright day, sooner or later, these dreary blunderings must come to an end. Then this nightmarish old regime will give way to a brave new era, and a rejuvenated America will resume its place in the forward march of civilization.
openaire   +2 more sources

Ultrahigh-energy neutrino follow-up of Gravitational Wave events GW150914 and GW151226 with the Pierre Auger Observatory [PDF]

open access: yes, 2016
On September 14, 2015 the Advanced LIGO detectors observed their first gravitational-wave (GW) transient GW150914. This was followed by a second GW event observed on December 26, 2015.
Aab, A.   +412 more
core   +5 more sources

A new method to search for a cosmic ray dipole anisotropy

open access: yes, 2005
We propose a new method to determine the dipole (and quadrupole) component of a distribution of cosmic ray arrival directions, which can be applied when there is partial sky coverage and/or inhomogeneous exposure. In its simplest version it requires that
Aublin J Parizot E   +6 more
core   +1 more source

Declination of Treatment, Racial and Ethnic Disparity, and Overall Survival in US Patients With Breast Cancer

open access: yesJAMA Network Open
Key Points Question What are the treatment declination trends and are there racial and ethnic disparities in treatment declination and overall survival among patients with breast cancer?
J. Freeman   +5 more
semanticscholar   +1 more source

The reduction of geomagnetic data for the territory of Latvia to the epoch 2021.5

open access: yesGeodesy and Cartography
The article describes the sources of geomagnetic data, the reduction of geomagnetic data for the territory of Latvia to the epoch 2021.5, the history of previous magnetic observations in Latvia, the information available in the State Geodetic Network ...
Lubova Sulakova, Janis Kaminskis
doaj   +1 more source

OPTIMIZATION OF BLADE DEFLECTION BASED ON HYBRID GENETIC ALGORITHM

open access: yesJixie qiangdu, 2021
In order to improve the energy utilization rate of the vertical axis variable angle of attack turbine,a mathematical optimization model of the blade declination angle variation rule was established,using the blade declination angle change with the ...
WANG YongDing, QIAN YingJuan
doaj  

Kataphlôros ou Kataphlôron: Notes sur un patronyme Byzantin [PDF]

open access: yesZbornik Radova Vizantološkog Instituta, 2013
The byzantine family name “Kataphloron” of civil and military officials (from the 10th to the beginning of the 13th century) has been attested in sources in various forms.
Loukaki Marina
doaj   +1 more source

The Large Quasar Reference Frame (LQRF) - an optical representation of the ICRS

open access: yes, 2009
The large number and all-sky distribution of quasars from different surveys, along with their presence in large, deep astrometric catalogs,enables the building of an optical materialization of the ICRS following its defining principles.
A. H. Andrei   +39 more
core   +2 more sources

Historical Geomagnetic Declination in Mainland Spain Derived from Topographic Fieldwork Records (1871–1940)

open access: yesGeosciences
In 1870, the newly created Instituto Geográfico of Spain, the precursor of the current Instituto Geográfico Nacional (IGN), began to carry out work for the preparation of the National Topographic Map of Spain, a major project that would take almost 100 ...
Jose Manuel Tordesillas   +5 more
doaj   +1 more source

Home - About - Disclaimer - Privacy