Results 201 to 210 of about 30,621 (258)

Climate Change Shows Inverse Effects on Grain Yield and Protein Concentration in West Africa

open access: yesEarth's Future, Volume 14, Issue 8, August 2026.
Abstract Climate change driven shifts in temperature, precipitation patterns, and atmospheric CO2 concentrations threaten both productivity and nutritional quality of maize, a staple crop that underpins daily energy and protein intake for millions of households in Africa and beyond.
David Abigaba   +3 more
wiley   +1 more source

Geolocation with a magnetic sensor

open access: yesMethods in Ecology and Evolution, Volume 17, Issue 8, Page 2395-2407, August 2026.
Abstract Many migratory animals use spatial variation in the Earth's magnetic field for orientation and navigation. This raises the possibility of exploiting these same cues to geolocate and track migratory animals throughout their annual journeys. Magnetic‐based geolocation could be particularly valuable for small aerial and aquatic species, for which
Raphaël Nussbaumer   +9 more
wiley   +1 more source

Competition and payments to African chiefs on the Gold Coast during the slave trade, 1679‒1704

open access: yesThe Economic History Review, Volume 79, Issue 3, Page 1052-1081, August 2026.
Abstract The manuscript records of the Royal African Company show that the Company paid African chiefs for access to trade along the caravan routes on the Gold Coast in the seventeenth century. This paper documents and examines these payments. Using an event study, I establish that after the Glorious Revolution in 1688 when the Company's monopoly in ...
Jose Rowell Corpuz
wiley   +1 more source

Natural Resources and Political Patronage in Africa: An Ethnicity Level Analysis

open access: yesReview of Development Economics, Volume 30, Issue 3, Page 1957-1972, August 2026.
ABSTRACT We investigate the effect of resource discoveries on ethnicity‐level political patronage in Africa using a large geospatial dataset of 254 ethnic groups in 15 countries over the period 1960–2004. We find that the first (or single first) resource discovery in a virgin ethnic homeland increases the share of cabinet posts of that ethnicity.
Sambit Bhattacharyya, Nemera Mamo
wiley   +1 more source

Control of pyrethroid-resistant Anopheles gambiae s.l. with Sovrenta® 15WP, a new isoxazoline insecticide for indoor residual spraying. [PDF]

open access: yesMalar J
Govoetchan R   +9 more
europepmc   +1 more source

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