Results 11 to 20 of about 148,841 (263)

A history of solar activity over millennia

open access: yesLiving Reviews in Solar Physics, 2023
Here we review present knowledge of the long-term behaviour of solar activity on a multi-millennial timescale, as reconstructed using the indirect proxy method.
Ilya G. Usoskin
doaj   +1 more source

Using luminosity data as a proxy for economic statistics [PDF]

open access: yesProceedings of the National Academy of Sciences, 2011
A pervasive issue in social and environmental research has been how to improve the quality of socioeconomic data in developing countries. Given the shortcomings of standard sources, the present study examines luminosity (measures of nighttime lights visible from space) as a proxy for standard measures of output (gross domestic product).
Xi, Chen, William D, Nordhaus
openaire   +2 more sources

Statistically Derived Proxy Potentials Accelerate Geometry Optimization of Crystal Structures

open access: yesChemPhysChem, 2023
AbstractThe crystal structures of known materials contain the information about the interatomic interactions that produced these stable compounds. Similar to the use of reported protein structures to extract effective interactions between amino acids, that has been a useful tool in protein structure prediction, we demonstrate how to use this ...
Dmytro Antypov   +7 more
openaire   +2 more sources

Flowing fibers as a proxy of turbulence statistics [PDF]

open access: yesMeccanica, 2019
The flapping states of a flexible fiber fully coupled to a three-dimensional turbulent flow are investigated via state-of-the-art numerical methods. Two distinct flapping regimes are predicted by the phenomenological theory recently proposed by Rosti et al. [Phys. Rev. Lett.
Rosti M. E.   +4 more
openaire   +4 more sources

Energy consumption and cooperation for optimal sensing

open access: yesNature Communications, 2020
Cells exhibit exceptional chemical sensitivity, yet we haven’t fully understood how they achieve it. Here the authors consider the mutual information between signals and two coupled sensors as a proxy for sensing performance and show its optimisation ...
Vudtiwat Ngampruetikorn   +2 more
doaj   +1 more source

Analysis of Concordance Between Parent Proxy and Child Self-report of KIDSCREEN-10 Health-related Quality of Life Questionnaire in an Elementary School-based Wellness Program: A Pilot Focus Group Study

open access: yesPhysical Therapy Korea, 2021
Background: Researchers have previously commenced examining the degree of concordance between parent proxy and child self-reports on health-related quality of life (HRQOL) of many disease and impairment populations. Objects: To explore the differences
Bongsam Choi
doaj   +1 more source

The Value of Luminosity Data as a Proxy for Economic Statistics [PDF]

open access: yesSSRN Electronic Journal, 2010
One of the pervasive issues in social and environmental research has been to improve the quality of socioeconomic data in developing countries. Because of the shortcoming of standard data sources, the present study examines luminosity (measures of nighttime lights) as a proxy for standard measures of output.
Xi Chen, William D. Nordhaus
openaire   +3 more sources

Development and validation of a novel Middle childhood oral health impact scale (MCOHIS)

open access: yesJournal of Indian Society of Pedodontics and Preventive Dentistry, 2022
Purpose: The study was planned to develop and validate a novel middle childhood oral health impact scale (MCOHIS) for 6- to 9-year-old children in India.
Sharath Asokan   +4 more
doaj   +1 more source

European Jurassic floras: statistics and palaeoenvironmental proxies

open access: yesActa Palaeobotanica, 2014
Abstract The Jurassic floras of Europe show considerable diversity. To examine the extent of this diversity and its possible causes we used multivariate statistical methods (cluster analysis, PCA, NMDS) to compare all significant Jurassic floras in Europe.
Barbacka, Maria   +8 more
openaire   +5 more sources

Critique of Well Activity Proxy Uses Inadequate Data and Statistics [PDF]

open access: yesInternational Journal of Environmental Research and Public Health, 2020
The recent publication, “Assessing Agreement in Exposure Classification between Proximity-Based Metrics and Air Monitoring Data in Epidemiology Studies of Unconventional Resource Development” by Hess et al [...]
openaire   +2 more sources

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