Search results for " Africa"

The climate change effect on the african monsoon region : evolution of the precipitation and atmospheric fields in the CMIP3 and CMIP5 simulations un…

2013

The fourth IPCC report in 2007 established the synthesis of previously published work onthe effects of climate change on global and regional scales. It shows in particular that no consensuscan be found with regard to the future of rainfall — and atmospheric dynamics- associatedwith region — African monsoon. This dissertation revisits this issue in the light of new dataand using an approach avoiding over-representation of the number of simulations available forone type of model and taking into account the diversity of models and their evolution in time :twenty general circulation models (GCMs) participating in the exercises CMIP3 (twelve GCMs)and CMIP5 (eight GCMs) under the A1B emissions sc…

Tropical Temperate Toughs over southern Africa : mechanisms and evolution in response to climate change (2010-2099)

2014

In the Southern Hemisphere, Southern Africa and the south-west Indian Ocean are one of the three preferred regions where interactions between the tropics and midlatitudes develop. This is the South Indian Convergence Zone (SICZ), where northwest-southeast oriented cloud bands form at the synoptic scale (between 3 and 5 days). These bands are mainly found during the austral summer and are commonly referred to as tropical temperate troughs (TTTs). This research aims at improving our knowledge related to TTTs, with a study on the dynamics associated with these systems, and an analysis of their possible evolution during the 21st century.The first part of this thesis aims at identifying favorabl…

Towards a new classification of Salvia s.l.: (re)establishing the genus Pleudia Raf.

2015

Salvia L. In its traditional circumscription is the largest genus within the mint family. To date, the magnitude of the task has rendered it difficult to provide a genus-wide revision based on morphological data. Current molecular investigations based on a dense taxon sampling representing the whole phenotypic diversity and distribution range of Salvia confirmed that the genus is polyphyletic. Salvia species fall in 4 distinct clades, although all of them, except Clade IV, also include non-Salvia genera. A taxonomic revision is thus urgently needed with two different approaches that have to be considered: (1) to include the 5 morphologically distinct non-Salvia genera in Salvia or (2) to sp…

County-level socioeconomic and crime risk factors for substantiated child abuse and neglect.

2019

Rates of substantiated child abuse and neglect vary significantly across counties. Despite strong cross-sectional support for links between social-contextual characteristics and abuse and neglect, few longitudinal studies have tested relations between these risk factors and substantiated rates of abuse/neglect. The goal of this study was to identify county-level socioeconomic and crime factors associated with substantiated abuse/neglect rates over 13 years (2004-2016). Annual county-level data for Tennessee, obtained from the KIDS COUNT Data Center, included rates of substantiated child abuse and neglect, children's race and ethnicity, births to unmarried women, teen birth rate, children in…

Multi-mycotoxin analysis in North African semolina samples using a modified QuEChERS-based extraction procedure and HPLC–MS/MS

2014

Aspects typo-chronologiques et archéométriques de la céramique africaine sur le territoire de Cignana (Naro, AG, Sicile)

2017

Ce projet de recherche se fonde sur une étude typologique et archéométrique des matériaux d’époque romaine-impériale collectés pendant les prospections, surtout les céramiques africaines importées en Sicile entre la fin du Ier et le VIIe siècle apr. J.C. On ne va pas se concentrer sur une seule classe de céramique mais on va analyser globalement tous les objets manufacturés (amphores, sigillées, vaisselles culinaires, communes, lampes) en adoptant une approche diachronique correspondant à l’entière période de circulation de ces céramiques. L’objectif est de reconstruire les contacts économiques entre les deux provinces et individualiser l’origine des différentes productions. Nous allons ess…

Rethinking Civil Society in Development: Scales and Situated Hegemonies

2016

Ethnic residential segregation is often explained with the claim that ‘immigrants don’t want to integrate—they prefer to stick together with co-ethnics’. By contrast, mixed neighbourhoods are seen as crucial for achieving social cohesion. In line with spatial assimilation theory there is a normative assumption that people interact with those living nearby. From interviews on neighbourhood qualities and locations valued by Oslo residents of Turkish, Somali and Polish backgrounds, we raise questions about the validity of two assumptions: that most immigrants want to live in the same neighbourhoods as co-ethnics; and that they want to live close to co-ethnics because they do not want to integr…

Climate change engenders a better Early Warning System development across Sub-Saharan Africa: The malaria case

2022

It is expected that diseases are likely to spread to newer areas, and high-income countries may experience some illnesses that may have been restricted to low or middle-income countries. In addition, following the Intergovernmental Panel on Climate Change, the present study noted that climate change is likely to have many effects on the spatial and temporal distribution of malaria in many Sub-Saharan African countries. This study examines climate change effects on the geographical distribution of malaria occurrence and how extreme climatic events may perhaps be determining factors in the range of vectors for human diseases in SSA in the nearest future. Here, the study appraisals the symbiot…

Dati sulla circolazione della ceramica e sulle rotte del medioevo occidentale attraverso i contesti tardoantichi e medievali di Marettimo

2012

In this paper will be described the ceramic found in the site Contrada Case Romane in the island of Marettimo. On this site a monastic community was founded in the end of the 5th century. This settlement was destroyed in the 8th century and a new one founded in the same location under Norman rule (end of 11th century). The items discovered prove that between the 5th and the 7th century the island was part of a Mediterranean route linking Africa with Rome and the main locations of the western Mediterranean sea. The findings of amphorae produced in the central-southern Tyrrhenian sea between the end of the 7th century and the beginning of the 8th century reveal the close relationship of this …

The relationship between communication apprehension and linguistic fluency: an analysis of North African and Russian immigrants in France

2013

North African and Russian immigrants in France were recruited (334) to complete a survey investigating the relationships between communication apprehension (CA) and linguistic fluency. Correlation analysis revealed a negative relationship between linguistic fluency in the dominant language and CA, meaning individuals who are fluent in the dominant language tend to be less apprehensive. Moreover, independent samples t-tests revealed Russian immigrants score higher on CA than do North African immigrants. Theoretical implications regarding the importance of studying Islam, linguistic fluency, and cultural adaptation are presented.