Results 41 to 50 of about 218,597 (302)

On the stability of the atmosphere-vegetation system in the Sahara/Sahel region [PDF]

open access: yes, 1998
A conceptual model has been developed for the analysis of atmosphere-vegetation interaction in subtropical deserts. The model can exhibit multiple stable states-in the system: a "desert" equilibrium with low precipitation and absent vegetation and a ...
Brovkin, V.   +3 more
core   +2 more sources

The spread of non‐native species

open access: yesBiological Reviews, EarlyView.
ABSTRACT The global redistribution of species through human agency is one of the defining ecological signatures of the Anthropocene, with biological invasions reshaping biodiversity patterns, ecosystem processes and services, and species interactions globally.
Phillip J. Haubrock   +16 more
wiley   +1 more source

A Comparison of Provision and Access to Inclusive Education for Children with Disabilities in a Metropolitan City and a Rural District in Telangana State, India

open access: yesEducation Sciences, 2021
In response to international agreements, recent Indian legislation has raised expectations that all children, regardless of need or ability, should gain access to formal education that is inclusive and addresses their social and learning needs ...
Richard Rose   +3 more
doaj   +1 more source

Upaya Peningkatan Kompetensi Sosial Guru PPKn Di SMP Negeri 2 Baraka Kabupaten Enrekang [PDF]

open access: yes, 2018
Penelitian ini bertujuan untuk memperoleh data: (1) upaya yang dilakukan dalam peningkatan kompetensi sosial guru PPKn di SMP Negeri 2 Baraka Kabupaten Enrekang.
SAHARA, SAHARA
core  

Atmospheric teleconnection mechanisms of extratropical North Atlantic SST influence on Sahel rainfall [PDF]

open access: yes, 2014
Extratropical North Atlantic cooling has been tied to droughts over the Sahel in both paleoclimate observations and modeling studies. This study, which uses an atmospheric general circulation model (GCM) coupled to a slab ocean model that simulates this ...
Chiang, JCH   +3 more
core   +1 more source

Seasonal Performance Analysis of Monocrystalline and Polycrystalline Photovoltaic Solar Panels Under Dust Deposition in Niamey, Niger

open access: yesEnergy Science &Engineering, EarlyView.
ABSTRACT This paper investigates the impact of dust accumulation and temperature on the performance of monocrystalline and polycrystalline photovoltaic (PV) panels under the climatic conditions of Niamey, Niger, with a focus on seasonal variations. High‐resolution performance data were collected across the rainy, Harmattan, and hot seasons to evaluate ...
Falmata Abdoulaye Moussa   +3 more
wiley   +1 more source

Gender and Land Degradation Neutrality (LDN): Evaluating Nigeria's Legislative Framework for Achieving Gender‐Equitable LDN Outcomes

open access: yesLand Degradation &Development, EarlyView.
ABSTRACT Legislative frameworks that support gender equality are crucial for addressing structural inequalities, protecting women's rights, and achieving gender‐equitable land degradation neutrality (LDN) outcomes. This study examines the extent to which national‐level policies and legislation governing LDN and related sectors incorporate gender ...
Cynthia Nneka Olumba   +1 more
wiley   +1 more source

The Saharan heat low and moisture transport pathways in the central Sahara-multiaircraft observations and Africa-LAM evaluation [PDF]

open access: yes, 2015
We present a characterization of the Saharan heat low (SHL) based on dropsonde observations made on 22 June 2011 by two simultaneously flying aircraft during the Fennec project.
Allen   +48 more
core   +3 more sources

Digitisation of herbarium specimens to the benefit of research: An African perspective focusing on South Africa and Western Indian Ocean Island states

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Botanical exploration, discovery and conservation rely heavily on access to herbarium collections. Recently, digital access to label information, including georeferenced locality data, and images of herbarium specimens available online have greatly increased usage of herbarium specimen data.
Ronell R. Klopper   +9 more
wiley   +1 more source

Dynamics and model representation of two contrasting extreme precipitation events in the Sahel

open access: yesQuarterly Journal of the Royal Meteorological Society, EarlyView.
Hovmöller diagrams of the two investigated extreme precipitation events in Mali are shown for (i) IMERG observations, and ICOsahedral Nonhydrostatic model (ICON) runs with parameterization of explicit convection (ii) enabled and (iii) disabled. This work highlights that the commonly perceived benefit of using explicit convection in a state‐of‐the‐art ...
Souleymane Sanogo   +4 more
wiley   +1 more source

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