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Community participation in secular and religious contexts across sociodemographic groups in 22 countries [PDF]

open access: yesScientific Reports
In an increasingly fragmented and isolated world, community participation remains an essential source of social connection. However, how community participation varies across countries and sociodemographic groups remains unclear.
Ying Chen   +7 more
doaj   +2 more sources

A New View of Long-Term Geomagnetic Field Secular Variation

open access: yesFrontiers in Earth Science, 2018
This study carries out a statistical analysis of high-resolution PSV records for the last ~70 ka from three different regions of the Earth. We consider directional and intensity variability in each region on time scales of 103-105 years in order to ...
Steve P. Lund
doaj   +3 more sources

Dependence of the velocity changes of secular variations on the position of observatory and time

open access: yesГеофизический журнал, 2021
According to the data of world observatories net secular variations of geomagnetic fields from internal and outer sources have been studied. Averaged 3-year data have been used for this purpose.
T. P. Sumaruk, P. V. Sumaruk
doaj   +1 more source

The Meaning of ‘Secular’ as a Scientific Concept

open access: yesSecularism and Nonreligion, 2020
The meaning of ‘secular’ in the scientific use of ‘secular trend’, ‘secular variation’, and similar terms is a topic that merits historical investigation.
John Shook
doaj   +1 more source

Geomagnetic core field models and secular variation forecasts for the 13th International Geomagnetic Reference Field (IGRF-13)

open access: yesEarth, Planets and Space, 2020
Observations of the geomagnetic field taken at Earth’s surface and at satellite altitude are combined to construct continuous models of the geomagnetic field and its secular variation from 1957 to 2020.
I. Wardinski   +6 more
doaj   +1 more source

Comparison and Renormalization of Holocene Paleointensity Records From Central North America (17°N–51°N, 205°E–295°E)

open access: yesEarth and Space Science, 2021
This paper develops a composite absolute paleointensity record for Holocene paleomagnetic secular variation (PSV) from central North America. Twelve full‐vector (inclination, declination, paleointensity) PSV records were assessed in order to build the ...
Steve P. Lund   +5 more
doaj   +1 more source

New Paleointensity Data Suggest Possible Phanerozoic‐Type Paleomagnetic Variations in the Precambrian

open access: yesGeochemistry, Geophysics, Geosystems, 2021
The state of the geomagnetic field throughout the Precambrian era is largely unknown. Approximately 8% of global paleointensity records account for ∼4 billion years of Earth history.
Simon J. Lloyd   +2 more
doaj   +1 more source

Regional character of geomagnetic field directional circularity: Holocene Eastern North America

open access: yesFrontiers in Earth Science, 2023
This study characterizes the paleomagnetic secular variation (PSV) in five Holocene records from Eastern North America. We have determined equi-spaced (100-year) declination and inclination time series for the five sites and compared their directional ...
Steven P. Lund
doaj   +1 more source

Dynamic mode decomposition of the geomagnetic field over the last two decades

open access: yesEarth and Planetary Physics, 2023
Earth's magnetic field, which is generated in the liquid outer core through the dynamo action, undergoes changes on timescales of a few years to several million years, yet the underlying mechanisms responsible for the field variations remain to be ...
JuYuan Xu, YuFeng Lin
doaj   +1 more source

Four decades of European geomagnetic secular variation and acceleration

open access: yesAnnals of Geophysics, 2009
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Monika Korte   +2 more
doaj   +1 more source

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