Results 91 to 100 of about 12,968 (246)

Reconnection Onset in Overstretched Thin Current Sheets: PIC Simulations

open access: yesJournal of Geophysical Research: Space Physics, Volume 130, Issue 5, May 2025.
Abstract Onset of reconnection in the magnetotail requires its current sheet (CS) to thin down to the thermal ion gyroradius (or thinner) to demagnetize ions (or even electrons) and to provide their Landau dissipation. However, in isotropic plasma models of the tail the ion‐scale CSs inflate too rapidly with the distance from Earth to remain ion‐scale ...
M. I. Sitnov, H. Arnold
wiley   +1 more source

Controvérsias geográficas: epistemologia e política

open access: yesConfins, 2008
The history of geography is usually thought to be devoid of theoretical controversies. Yet, they existed and they have been important for the building of geographical knowledge. This essay retrieves three meaningful controversies for/of geography.
José William Vesentini
doaj   +1 more source

PETER KROPOTKIN, THE PARTICIPATION OF ENLIGHTENED LEADERS OF EASTERN SIBERIA IN THE PREPARATION OF REFORMS IN THE EARLY 1860S

open access: yes, 2020
В статье дана интерпретация взглядов П.А. Кропоткина на реформаторский процесс в России конца 50-х – начала 60-х годов XIX в. и его идей о роли губернской администрации Восточной Сибири в подготовке преобразований.
Yelena L. Sarayeva, I. Tsoy
semanticscholar   +1 more source

Una propuesta de pedagogía libertaria en bachillerato

open access: yesTendencias Pedagógicas, 2019
Este trabajo pretende exponer la puesta en marcha de una pedagogía libertaria en una clase de filosofía de 1.º de bachillerato dentro de un instituto español público.
Santiago Vargas Oliva
doaj   +1 more source

Towards an intellectual history of evolutionary economics: competition and struggle versus cooperation and mutual aid

open access: yesBrazilian Journal of Political Economy
Our inquiry considers the origins of Evolutionary Economics by reintroducing a debate that took place in Russia in the 19th and early 20th century. Responses to Charles Darwin’s The origin of Species are considered, especially critiques stressing Darwin ...
JOHN HALL, SVETLANA KIRDINA-CHANDLER
doaj   +1 more source

The Ghost of Patrick Geddes: Civics As Applied Sociology [PDF]

open access: yes
In 1904 and 1905 Patrick Geddes (1905, 1906) read his famed, but today little-read, two-part paper, \'Civics: as Applied Sociology\', to the first meetings of the British Sociological Society.
Alex Law
core  

Anarchism : a Critical Analysis [PDF]

open access: yes, 2014
anarchismcommunal anarchismauthoritarianismCanadian statecoercioncohesioncommunityKPU Critical Criminology Working GroupAnarchism is a radical social-political theory that aims to deconstruct the State in order to empower every one; empower by granting ...

core  

The most recent (682-792 C.E.) volcanic eruption in the Jombolok lava field, East Sayan, Central Asia triggered exodus of Mongolian pre-Chinggis Khaan tribes (778-786 C.E.) [PDF]

open access: yes, 2016
International audienceThis study presents new data on one of the most recent (historical) volcanic eruptions in Central Asia. The Jombolok lava field located in the East Sayan Mountains (Southern Siberia) was formed during Late Pleistocene and Holocene ...
Arzhannikov, Sergei G.   +7 more
core   +2 more sources

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