Results 11 to 20 of about 1,649,596 (282)

Comparison of Field‐Aligned Current Responses to HSS/SIR, Sheath, and Magnetic Cloud Driven Geomagnetic Storms

open access: yesGeophysical Research Letters, 2023
The time delay from an interplanetary driver arriving at the magnetopause to the response in the ionosphere has never been quantified separately for different types of storm drivers.
M. N. Pedersen   +2 more
doaj   +1 more source

Revealing the X-ray source in IRAS 13224-3809 through flux-dependent reverberation lags [PDF]

open access: yes, 2013
IRAS 13224-3809 was observed in 2011 for 500 ks with the XMM-Newton observatory. We detect highly significant X-ray lags between soft (0.3 - 1 keV) and hard (1.2 - 5 keV) energies. The hard band lags the soft at low frequencies (i.e. hard lag), while the
Cackett, E. M.   +4 more
core   +3 more sources

An empirical study of near-surface air temperature time lags and delay function during the longest total solar eclipse of the 21st century at Tianhuangping (Zhejiang), China, under cloudy conditions

open access: yesMeteorologische Zeitschrift, 2022
Among the different ways that the solar heating of the Earth's surface can be interrupted, the most impressive is by a solar eclipse. While the solar radiation drops rapidly, the near-surface air temperature responds more gradually, typically reaching a ...
Marcos A. Peñaloza-Murillo   +3 more
doaj   +1 more source

Association Between Weather Parameters and SARS‐CoV‐2 Confirmed Cases in Two South African Cities

open access: yesGeoHealth, 2022
Several approaches have been used in the race against time to mitigate the spread and impact of COVID‐19. In this study, we investigated the role of temperature, relative humidity, and particulate matter in the spread of COVID‐19 cases within two densely
Samuel Ogunjo   +2 more
doaj   +1 more source

Invariants of degree 3 and torsion in the Chow group of a versal flag [PDF]

open access: yes, 2014
We prove that the group of normalized cohomological invariants of degree 3 modulo the subgroup of semidecomposable invariants of a semisimple split linear algebraic group G is isomorphic to the torsion part of the Chow group of codimension 2 cycles of ...
Merkurjev, Alexander   +2 more
core   +1 more source

Optimization of k value and lag parameter of k-nearest neighbor algorithm on the prediction of hotel occupancy rates

open access: yesJurnal Teknologi dan Sistem Komputer, 2020
Hotel occupancy rates are the most important factor in hotel business management. Prediction of the rates for the next few months determines the manager's decision to arrange and provide all the needed facilities.
Agus Subhan Akbar   +1 more
doaj   +1 more source

Are Swift Long-Lag Gamma-Ray Bursts in the Local Supercluster? [PDF]

open access: yes, 2009
A sample of 18 long-lag (tau_{lag} > 1 s) Gamma-Ray Bursts (GRBs) has been drawn from our catalog of all Swift long GRBs. Four different tests are done on this sample to test the prediction that a large fraction of long-lag GRBs are from our Local ...
Band   +22 more
core   +3 more sources

Flipped versus Traditional Classroom Information Literacy Sessions: Student Perceptions and Cognitions

open access: yesNordic Journal of Information Literacy in Higher Education, 2016
Teaching effectively with limited classroom time is a challenge for information literacy teachers. In the flipped classroom (FC) teaching model, information transmission teaching is delivered outside of class, freeing up class time for learning ...
Torstein Låg
doaj   +1 more source

Engaging rural communities: The uses of online communication tools in Local Action Groups’ activity

open access: yesStyles of Communication, 2023
Local Action Groups (LAGs) play an important role in the development of rural territories, by engaging communities in the creation of local identity. The LAGs have the great advantage of being in direct contact with the population, of understanding the ...
Alexandra-Catalina SZILAGYI   +1 more
doaj   +1 more source

Development of methodological approaches to risk management within the system of internal control of agricultural organizations [PDF]

open access: yesBIO Web of Conferences, 2022
In order to form methodological approaches to risk management of agricultural organizations, the article considers the grouping of risks according to various criteria, which allows them to predict them in a timely manner and minimize possible damage.
Khulkhachieva Galina   +2 more
doaj   +1 more source

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