Search results for "africa"
showing 10 items of 962 documents
Africa Centro-Orientale e protezione dell’ambiente : alcuni cenni introduttivi
1996
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The convention of Bamako on dangerous wastes in Africa
1997
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Evolution of dry season low cloud cover over the Atlantic coast of Central Africa from diurnal to interannual scale
2022
Despite its bioclimatic importance, few studies have focused on the stratiform low-level cloud cover ofthe dry season (June-September) of the Atlantic coast of Central Africa. Using in-situ data documenting theperiod 1971-2019, we show that this cloud cover is underestimated by SAFNWC satellite observations andCMIP6 models. We identify three types of days: clear, cloudy at night and totally cloudy, the latterbeing more frequent on the coast and inland, to the windward of the Cristal and Chaillu Mountains. Onan interannual scale, temperature anomalies in the South Tropical Atlantic, the equatorial Pacific and theCongo Basin, by modulating the meridional and zonal circulation cells, influence…
Non-governmental organizations in regional conflict prevention : a case study of the African Union's Continental Early Warning System
2007
Consistent phenological shifts in the making of a biodiversity hotspot: the Cape flora
2011
Abstract Background The best documented survival responses of organisms to past climate change on short (glacial-interglacial) timescales are distributional shifts. Despite ample evidence on such timescales for local adaptations of populations at specific sites, the long-term impacts of such changes on evolutionary significant units in response to past climatic change have been little documented. Here we use phylogenies to reconstruct changes in distribution and flowering ecology of the Cape flora - South Africa's biodiversity hotspot - through a period of past (Neogene and Quaternary) changes in the seasonality of rainfall over a timescale of several million years. Results Forty-three dist…
Internet abuse by university students: a neglected theme in Africa
2013
The purpose of this paper is to investigate potential Internet abuse by university students, an area lacking research focus in Africa. A case study was conducted at the University of The Gambia (UTG) in 2012. A total of 200 questionnaires were randomly administered to UTG students and 181 valid responses were available for analyses. The result indicates that about 18% of UTG students use the Internet for unspecified activities, demonstrating attributes that could reveal potential Internet abuse. Considering the negative implications of this phenomenon, African researchers cannot afford to neglect this theme. peerReviewed
The global politics of celebrity humanitarianism
2014
Unshared binding sites for Bacillus thuringiensis Cry3Aa and Cry3Ca proteins in the weevil Cylas puncticollis (Brentidae)
2016
Bacillus thuringiensis Cry3Aa and Cry3Ca proteins have been reported to be toxic against the African sweetpotato pest Cylas puncticollis. In the present work, the binding sites of these proteins in C. puncticollis brush border vesicles suggest the occurrence of different binding sites, but only one of them is shared. Our results suggest that pest resistance mediated by alteration of the shared Cry-receptor binding site might not render both Cry proteins ineffective.
Le aree funerarie cristiane
2017
This paper shows the data edited and acquired in June and October 2010 by surveys in Sabratha made by researchers at the University of Palermo, in collaboration whit the CNR ITABC for the PRIN 2008 Project. It consists of a preliminary study for an archaeological gis of Sabratha to promote analysis regarding the riuse of space in the Regiones III-V of Sabratha, after the destruction attribuited to the earthquake on 21th July 365. In particular, the paper presents the results of the first study concerning the catacomb in the eastern suburbs, the sub-divo funerary areas between the churches 3 and 4 and the so-called Baths ofOceanus, the necropolis sub-divo North-East of the Theater and, final…
Terra in Africa : diritto fondiario Eritreo
2013
Il volume ripercorre lo sviluppo del diritto fondiario eritreo partendo dalla componente tradizionale sino ad arrivare al diritto fondiario vigente ai giorni nostri. L’analisi svolta non si limita ad un excursus storico sul diritto fondiario eritreo, ma analizza in maniera critica i diversi strati che nel corso del tempo si sono sovrapposti l’uno sull’altro e le modalità attraverso le quali detti strati hanno interagito e continuano ad interagire. Il lavoro cerca quindi di analizzare le ragioni che hanno determinato la situazione attuale di difficoltà applicative della normativa ufficiale e di sopravvivenza (non del tutto) sommersa del diritto tradizionale in un quadro estremamente variegat…