Results 81 to 90 of about 9,114 (209)

Intricacies of French engagement in Sahel with peace prospects

open access: yesSocial Development & Security
The Sahel region faces an extreme human security crisis with complex security challenges rooted in historical, ethnic, and geopolitical ties. Decades of armed violence and unstable socio-political systems have led to deteriorating security conditions ...
Shubhdayini Rajyalaxmi Jandev
doaj   +1 more source

The Effects of Biome Stability During the Quaternary on Plant Diversity

open access: yesEcology and Evolution, Volume 16, Issue 7, July 2026.
We used machine learning to reconstruct global biome changes over the last 2.6 million years, revealing that tropical forests, deserts, and temperate forests were relatively stable, whereas northern Europe and North America experienced frequent biome shifts due to ice sheet expansions.
Simon Scheiter   +2 more
wiley   +1 more source

Hydroclimatic Controls on Flash Drought Development in Northeast Asia: Roles of Atmospheric Demand and Water Availability

open access: yesHydrological Processes, Volume 40, Issue 7, July 2026.
Flash drought development across Northeast Asia is governed by distinct hydroclimatic controls linked to atmospheric demand and water availability. Using the Standardized Evaporative Stress Ratio framework, this study classifies flash drought events into water‐availability‐driven and demand‐driven mechanisms.
Minsun Kang   +3 more
wiley   +1 more source

La construcción de la paz y la guerra contra el terrorismo: ¿Conflicto de Intereses?

open access: yesRelaciones Internacionales, 2008
La Guerra Global Contra el Terrorismo (GGCT) ha sido uno de los temas más importantes dentro de la política internacional. Hasta la fecha su impacto en la seguridad internacional ha sido abrumadoramente negativo. En un intento de analizar sus debilidades,
Malgorzata KOTOMSKA, Balder HAGERAATS
doaj  

Climate change‐driven expansion of goosegrass highlights risks to global food production

open access: yesPest Management Science, Volume 82, Issue 7, Page 6494-6508, July 2026.
Climate change is expanding the climatic suitability of Eleusine indica into temperate agricultural regions, increasing its overlap with major soybean and maize production areas. These findings highlight a growing global threat to food security and the need for proactive weed management strategies.
Thiago Deomar Ludwig   +4 more
wiley   +1 more source

Kidnappings as a terrorist instrument of AQIM and the MUJAO

open access: yesPaix et Sécurité Internationales, 2013
This article updates to the Spring of 2013 the kidnappings implemented by a number of Salafist-Jihadist groups acting in the Maghreb, the Sahel, and Nigeria, providing analysis.
Carlos Echeverría Jesús
doaj   +1 more source

Soil Moisture Impact on Convective Initiation

open access: yesWater Resources Research, Volume 62, Issue 7, July 2026.
Abstract The influence of soil moisture on convective storm initiation remains an open question, with previous studies showing conflicting results regarding whether storms preferentially form over wet or dry soils. Here, we analyze the soil moisture‐convection relationship using satellite observations across North America, Africa, and Australia from ...
Faisal AlNasser   +2 more
wiley   +1 more source

Traditions of maghrebi-saheli statehood and islamic radicalism in Early XXI Century

open access: yesRUDN Journal of World History
The significance of this research topic is due to the relevance of the problems of modern state-building in the public and political life of North and West Africa.
Vladimir Viktorovich Orlov
doaj   +1 more source

Are West African Heat‐Lows Analogous to Dry Tropical Cyclones?

open access: yesInternational Journal of Climatology, Volume 46, Issue 8, 30 June 2026.
Heat‐lows qualitatively resemble dry tropical cyclones (TCs), though their underlying physics has yet to be compared. In this study, we show that West African transient heat‐low climatology correlates well with TC potential intensity generalised over land.
Aaron Kruskie   +2 more
wiley   +1 more source

Spatiotemporal Evolution of Hydroclimatic Variables in the Brazilian Semi‐Arid Region Through the Aridity Index and Susceptibility to Desertification

open access: yesInternational Journal of Climatology, Volume 46, Issue 8, 30 June 2026.
Over the past 60 years, noticeable changes have been observed in the main hydroclimatological variables, driven by both natural and anthropogenic factors. In the context of climate change, such behaviour may adversely affect the state's economic activities, as well as increase the recurrence of extreme events in the region.
Ronaldo Guilherme Santos Lima   +4 more
wiley   +1 more source

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