Results 1 to 10 of about 879,436 (210)

The archaeology of rock art in Northern Africa [PDF]

open access: yes, 2017
The first reports on the rock art of north Africa were written in the mid-nineteenth century. Since then, rock art has become a key area of African archaeological research.
DI LERNIA, Savino
core   +3 more sources

Arid, mosaic environments during the Plio-Pleistocene transition and early hominin dispersals in northern Africa [PDF]

open access: yesNature Communications
The earliest archaeological evidence from northern Africa dates to ca. 2.44 Ma. Nevertheless, the palaeoenvironmental setting of hominins living in this part of the continent at the Plio-Pleistocene transition remains poorly documented, particularly in ...
Iván Ramírez-Pedraza   +24 more
doaj   +2 more sources

The Economy and the Electricity Sector in the Northern Africa: Opportunities of Interaction for Russian Energy Companies [PDF]

open access: yesУченые записки Института Африки Российской академии наук, 2022
The article provides a deep scientific analysis of the economy and the electricity sector in the Northern Africa (Algeria, Egypt, Libya, Morocco, Sudan and Tunisia).
VOLKOV Sergey Nikolaevich
doaj   +1 more source

German-Algerian Relations by the Early 2020s in the Context of the Germany’s Regional Policy: Political and Military Aspects

open access: yesVestnik RUDN. International Relations, 2021
Since the beginning of the 21st century, there has been a noticeable increase in German efforts to ensure security in the Mediterranean Sea. This is part of the growing activities to ensure a strong strategic position in North and West Africa, including ...
Philipp O. Trunov
doaj   +1 more source

A Forgotten Treasure of Cyrene [PDF]

open access: yesАнтичный мир и археология, 2019
The article examines human interaction with the natural environment in antiquity with a specific focus on Cyrene during the period from the sixth century B.C. to the first century A.D.
Selivanova, Larisa Leonal’dovna
doaj   +1 more source

Directional speakers as a tool for animal vocal communication studies

open access: yesRoyal Society Open Science, 2023
Audio playbacks are a common experimental tool in vocal communication research. However, low directionality of sound makes it hard to control the audience exposed to the stimuli.
Lily Johnson-Ulrich   +5 more
doaj   +1 more source

Study on the Optical–Physical Properties of Aerosol Layers in Africa Based on a Laser Satellite

open access: yesAtmosphere, 2023
Atmospheric aerosols have important effects on the environment and human health. In this study, we analyzed the atmospheric aerosol layers’ optical and physical properties over Africa utilizing CALIPSO level 2 products from 2007 to 2019.
Miao Zhang   +7 more
doaj   +1 more source

A standardized database of Marine Isotope Stage 5e sea-level proxies in southern Africa (Angola, Namibia and South Africa) [PDF]

open access: yesEarth System Science Data, 2021
Evidence for sea-level change during and around Marine Isotope Stage (MIS) 5e (ca. 125 ka) in southern Africa derives from a wide variety of geomorphic and sedimentological sea-level indicators, supported in the past 2 decades by absolute chronological ...
J. A. G. Cooper   +3 more
doaj   +1 more source

Spatial-temporal dynamics of land surface phenology over Africa for the period of 1982–2015

open access: yesHeliyon, 2023
Knowledge of the dynamics of vegetation phenology is essential for the understanding of vegetation-climate interactions. Although the interest in phenology study is growing, vegetation phenology in Africa received far less attention compared to the ...
Siqi Shi   +2 more
doaj   +1 more source

First report and preliminary evaluation of cassava root necrosis in Angola [PDF]

open access: yes, 2020
Open Access ArticleCassava is a main staple food for 800 million people world-wide. Production is limited by pest and pathogens. The most devastating cassava viruses are Cassava Brown Streak Virus and Uganda Cassava Brown Streak Virusboth causing severe ...
Bakelana, Z.   +11 more
core   +1 more source

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