scholarly journals Wintering range of western yellow wagtail Motacilla flava in Africa and Europe in a historical perspective

2020 ◽  
Vol 90 (1) ◽  
Author(s):  
Flavio Ferlini
Keyword(s):  
Historical Perspective ◽  
Sub Saharan Africa ◽  
Museum Collections ◽  
Yellow Wagtail ◽  
The Past ◽  
The North ◽  
Sub Saharan ◽  
Wintering Range

Over the past few centuries, some subspecies of the western yellow wagtail Motacilla flava have shown changes in their reproductive ranges. The aim of this research is to verify if changes have occurred also in the wintering range of the species in Africa and Europe from 1848 to 2017. The data, collected through the consultation of over 840 bibliographic sources, 184 travel reports, 38 databases (including 25 relating to museum collections) and some website, shows an expansion of the wintering range to the north. The analysis is also extended to the single subspecies (flava, iberiae, cinereocapilla, flavissima, thunbergi, pygmaea, feldegg, beema, lutea, leucocephala). The factors that can affect the conservation of the species during wintering are examined and the oversummering range of Motacilla flava in sub-Saharan Africa is also discussed.

scholarly journals Dengue Virus Infection in Sub-Saharan Africa Between 2010 and 2020: A Systematic Review and Meta-Analysis

2021 ◽  
Vol 11 ◽  
Author(s):  
Khalid Eltom ◽  
Khalid Enan ◽  
Abdel Rahim M. El Hussein ◽  
Isam M. Elkhidir
Keyword(s):  
Systematic Review ◽  
Dengue Virus ◽  
Subgroup Analysis ◽  
Meta Analysis ◽  
Denv Infection ◽  
Sub Saharan Africa ◽  
Cochrane Library ◽  
The Past ◽  
Sub Saharan ◽  
Infection Markers

Dengue virus (DENV) infection has garnered a global interest in the past few decades. Nevertheless, its epidemiology in certain developing and low-income regions remains poorly understood, due to the absence of comprehensive surveillance and reporting systems. This systematic review and meta-analysis aimed to determine the prevalence of DENV infection in the population of Sub-Saharan Africa using DENV infection markers, and to track any changes in its prevalence during the past ten years. It was conducted in accordance with the PRISMA guidelines, targeting the literature available at MEDLINE/PubMed, ScienceDirect, Cochrane library and Google Scholar. All articles published in English language between January 2010 and June 2020 were screened for eligibility. Random effects model was used to calculate the pooled prevalence of all infection markers. The Inconsistency Index (I2) was used to assess the level of heterogeneity between studies. Subgroup analysis according to country and time-frame of studies was conducted to provide possible explanations to substantial heterogeneity. The critical appraisal tool for prevalence studies designed by the Joanna Briggs Institute (JBI) was used to assess the risk of bias in all included studies. A total of 84 articles, covering 21 countries, were included in this review. Quantitative meta-analysis estimated a pooled IgG prevalence of 25% (95% CI: 21-29%, I2 = 99%), a pooled IgM prevalence of 10% (95% CI: 9-11%, I2 = 98%) and a pooled DENV RNA prevalence of 14% (95% CI: 12-16%, I2 = 99%). Evidence for possible publication bias was also found in all three meta-analyses. Subgroup analysis according to the time of sample collection was performed to closely track the changing prevalence of DENV infection markers between 2010 and 2019. This meta-analysis estimates a high prevalence of DENV infection in Sub-Saharan Africa. More cost-efficient vector control strategies should be designed and implemented in order to adapt to the low-resource nature of this region.

scholarly journals The impact of African-trained neurosurgeons on sub-Saharan Africa

2020 ◽  
Vol 48 (3) ◽  
pp. E4 ◽  
Author(s):  
Claire Karekezi ◽  
Abdeslam El Khamlichi ◽  
Abdessamad El Ouahabi ◽  
Najia El Abbadi ◽  
Semevo Alidegnon Ahokpossi ◽  
...  
Keyword(s):  
Low Income ◽  
National Income ◽  
Sub Saharan Africa ◽  
World Federation ◽  
Neurosurgical Procedures ◽  
Ct Scanner ◽  
The Past ◽  
The World ◽  
Sub Saharan ◽  
The Impact

OBJECTIVESub-Saharan Africa (SSA) represents 17% of the world’s land, 14% of the population, and 1% of the gross domestic product. Previous reports have indicated that 81/500 African neurosurgeons (16.2%) worked in SSA—i.e., 1 neurosurgeon per 6 million inhabitants. Over the past decades, efforts have been made to improve neurosurgery availability in SSA. In this study, the authors provide an update by means of the polling of neurosurgeons who trained in North Africa and went back to practice in SSA.METHODSNeurosurgeons who had full training at the World Federation of Neurosurgical Societies (WFNS) Rabat Training Center (RTC) over the past 16 years were polled with an 18-question survey focused on demographics, practice/case types, and operating room equipment availability.RESULTSData collected from all 21 (100%) WFNS RTC graduates showed that all neurosurgeons returned to work to SSA in 12 different countries, 90% working in low-income and 10% in lower-middle-income countries, defined by the World Bank as a Gross National Income per capita of ≤ US$995 and US$996–$3895, respectively. The cumulative population in the geographical areas in which they practice is 267 million, with a total of 102 neurosurgeons reported, resulting in 1 neurosurgeon per 2.62 million inhabitants. Upon return to SSA, WFNS RTC graduates were employed in public/private hospitals (62%), military hospitals (14.3%), academic centers (14.3%), and private practice (9.5%). The majority reported an even split between spine and cranial and between trauma and elective; 71% performed between 50 and more than 100 neurosurgical procedures/year. Equipment available varied across the cohort. A CT scanner was available to 86%, MRI to 38%, surgical microscope to 33%, endoscope to 19.1%, and neuronavigation to 0%. Three (14.3%) neurosurgeons had access to none of the above.CONCLUSIONSNeurosurgery availability in SSA has significantly improved over the past decade thanks to the dedication of senior African neurosurgeons, organizations, and volunteers who believed in forming the new neurosurgery generation in the same continent where they practice. Challenges include limited resources and the need to continue expanding efforts in local neurosurgery training and continuing medical education. Focus on affordable and low-maintenance technology is needed.

scholarly journals CONTINENTAL MUSICOLOGY: DECOLONISING THE MYTH OF A SINGULAR “AFRICAN MUSIC”

2018 ◽  
Vol 10 (4) ◽  
pp. 177-193
Author(s):  
Thomas Mathew Pooley
Keyword(s):  
Sub Saharan Africa ◽  
Power Dynamics ◽  
Musical Structure ◽  
African Music ◽  
Popular Imagination ◽  
Ideal Types ◽  
Musical Identity ◽  
The North ◽  
Sub Saharan ◽  
And Function

The musical identity of the African continent is sustained in the popular imagination by the idea of its unity. This identity emerges from a constellation of ideas about Africa’s distinctiveness constructed by generations of scholars who have diminished its diversity to substantiate the claim that shared principles of musical structure and function in sub-Saharan cultures can be read as ideal types for the continent as a whole. The idea of a singular “African music” is predicated on the notion that African “traditional” music of precolonial origin in sub-Saharan Africa possesses a set of distinctive features that are essential to its identity. Musical cultures as diverse as Aka, Ewe, Shona, Yoruba, and Zulu are subsumed within a singular frame of reference; others that do not possess these features are, by implication, excluded. To make sense of this myth of a singular “African music” we must reckon with the universalising impulse that sustains it. This means interrogating the discursive formations out of which it has been fashioned. Whose interests does it serve? Taking a decolonial perspective on the power dynamics that structure global south-north relations in the academy, this article points to the ways in which the north perpetuates its authority and dominance over the south by subsuming others within its cultural and intellectual ambit. Decolonising “African music” means dismantling the hegemony of “continental musicology” and the myth of a singular “African music” that is its creation.

scholarly journals Towards Inclusive, Quality ICT-Based Learning for Rural Transformation

2017 ◽  
pp. 107-125 ◽  
Author(s):  
Vinayagum Chinapah ◽  
Jared O. Odero
Keyword(s):  
Rural Areas ◽  
Teaching And Learning ◽  
Formal Structure ◽  
Sub Saharan Africa ◽  
Skills Development ◽  
Rural Transformation ◽  
The North ◽  
Future Challenges ◽  
Sub Saharan ◽  
The Impact

Information and communication technology (ICT) has emerged as a tool that can enhance flexible learning pathways. ICT has the potential to increase equitable access to quality learning, which is essential for skills development. Skills are required in technology-related nonfarm activities so as to improve livelihoods and achieve sustainable rural transformation. However, slow pace of the developing countries to utilize the benefits of the ongoing technological revolution in the North has resulted in the ‘digital divide’. Besides, it is still problematic to implement ICT programmes for educational development. The current and future challenges of providing ICT-based learning desperately call for the reengineering of education to move out of the formal structure of teaching and learning, towards building a more practical and realistic approach. By means of a literature review, this paper examines and discusses why it is important to provide inclusive, quality ICT-based learning, particularly in the rural areas of Asia and sub-Saharan Africa (SSA). It recommends that diverse ICT-based solutions be adopted to promote skills development and training within non-formal and informal settings. More comparative studies are also required to understand the impact of ICT-based learning in rural areas. 

scholarly journals Imported Plasmodium vivax Malaria in the Russian Federation from Western Sub-Saharan Africa

2019 ◽  
Vol 2019 ◽  
pp. 1-5 ◽  
Author(s):  
Alla Baranova ◽  
Vladimir Sergiev ◽  
Lola Morozova ◽  
Natalia Turbabina ◽  
Evgeny Morozov
Keyword(s):  
Plasmodium Vivax ◽  
Russian Federation ◽  
Sub Saharan Africa ◽  
The Past ◽  
African People ◽  
Western Africa ◽  
Plasmodium Vivax Malaria ◽  
Imported Cases ◽  
The Russian Federation ◽  
Sub Saharan

Background. Imported cases of Plasmodium vivax malaria from western Africa are reported annually in the Russian Federation. Infected native African people moving from western Africa for different purposes (students, businessmen, specialists, etc.) or Russian citizens (tourists, diplomats, businessmen, etc.) incubate the pathogen until reaching their Russian destination. Methods. All imported and other confirmed malaria cases and the associated Plasmodium species recorded over the past twenty years throughout the Russian Federation were inventoried. These data were included in the national register. The data of imported malaria cases were analysed according to the species of Plasmodium, case origin, dates of importation, and patient nationality. Results. A total of 267 P. vivax-infected patients who contracted the disease in western Africa were diagnosed in the Russian Federation from 1984 to 2017. Among them, 3 cases had mixed infections (2 with P. vivax + P. falciparum and 1 P. vivax + P. ovale). Conclusion. Our data reveal an existing risk of contracting P. vivax infections in towns of West sub-Saharan Africa despite the absence of local P. vivax infection records.

scholarly journals Structure of Dark Triad Dirty Dozen Across Eight World Regions

Assessment ◽  
2020 ◽  
pp. 107319112092261
Author(s):  
Radosław Rogoza ◽  
Magdalena Żemojtel-Piotrowska ◽  
Peter K. Jonason ◽  
Jarosław Piotrowski ◽  
Keith W. Campbell ◽  
...  
Keyword(s):  
South America ◽  
Measurement Invariance ◽  
Western Europe ◽  
Dark Triad ◽  
Sub Saharan Africa ◽  
The Past ◽  
World Regions ◽  
Dirty Dozen ◽  
The Difference ◽  
Sub Saharan

The Dark Triad (i.e., narcissism, psychopathy, Machiavellianism) has garnered intense attention over the past 15 years. We examined the structure of these traits’ measure—the Dark Triad Dirty Dozen (DTDD)—in a sample of 11,488 participants from three W.E.I.R.D. (i.e., North America, Oceania, Western Europe) and five non-W.E.I.R.D. (i.e., Asia, Middle East, non-Western Europe, South America, sub-Saharan Africa) world regions. The results confirmed the measurement invariance of the DTDD across participants’ sex in all world regions, with men scoring higher than women on all traits (except for psychopathy in Asia, where the difference was not significant). We found evidence for metric (and partial scalar) measurement invariance within and between W.E.I.R.D. and non-W.E.I.R.D. world regions. The results generally support the structure of the DTDD.

scholarly journals New Fractures, Old Wounds: Africa and the Renewal of South Agency

2010 ◽  
Vol 45 (3) ◽  
pp. 69-85
Author(s):  
Carlos Lopes
Keyword(s):  
Vital Role ◽  
World Politics ◽  
First Century ◽  
Sub Saharan Africa ◽  
Regional Powers ◽  
The Past ◽  
Gdp Growth Rate ◽  
New Frontier ◽  
Global Discourse ◽  
Sub Saharan

Africa has recently come to the forefront of world politics as part of the emerging South. Its increased prominence in the global discourse as a “new frontier of development” signals the recognition of its economic potential. Indeed, the continent has registered an average 5 per cent annual GDP growth rate over the past decade. However, there is more to the story than that: The rising profile of the African continent also reveals the growing role of a number of its countries in the emergence of a new South agency. It is argued that South–South cooperation is an opportunity. The discussion of the current situation in Africa understood as a continent in all its diversity including sub-Saharan Africa, but also the Maghreb and Egypt, will therefore be placed into this wider context. The renewal of a South agency witnessed over the past decade is somewhat different from the trilateral alliance of Asia–Africa–Latin America formed in the wake of decolonization. Current mega-trends demonstrate that the global South, driven by a number of regional powers, will play a vital role in shaping the twenty-first century. Understanding the complexities of this renewed agency is vital for addressing old wounds that marked the emergence of a South voice in the not-so-distant past.

Inscriptions are Texts Too

2005 ◽  
Vol 32 ◽  
pp. 185-197
Author(s):  
David Henige
Keyword(s):  
Sub Saharan Africa ◽  
Potential Prey ◽  
The Past ◽  
Ur Iii ◽  
Terra Incognita ◽  
Fields Of Study ◽  
South Arabia ◽  
The World ◽  
Sub Saharan ◽  
Epigraphic Evidence

Epigraphic evidence is a virtualterra incognitafor Africanists; few of our sources have come down to us from the past quite so directly. This is in contrast to many other parts of the world, where dealing with inscriptions falls squarely within historians' purview. Where such evidence exists, it tends to exist in very large quantities. For example, for Ur III dynasty, of circumscribed length and extent (2112-2004 BCE, southern Mesopotamia) at least 50,000 texts have been published and tens of thousands more are known to exist. Even larger numbers exists for what is now India, although admittedly covering both a much larger area and a much longer period of time. One estimate is that more than 90,000 have been discovered. Nearly everything we think we know about the Maya civilization is derived from the numerous stelae that have been discovered there. The same applies to the pre-Islamic political entities in south Arabia. And so on. In contrast, the materials included in the work under review represent almost the entire corpus for sub-Saharan Africa.This embarrassment of riches outside Africa involves another embarrassment as well. Despite heroic efforts, many of these inscriptions—a majority for some areas—are attracting dust rather than scrutiny; as a result many of the interpretations built on the edited and published ones are potential prey to the evidence in those as yet unexamined.The so-called epitaphs of Gao have not wanted for study—study carried out largely by French orientalists looking for sources more congenial to their first fields of study, but harking back to Heinrich Barth, who at least had the excuse of being unaware of the inscriptions. The present work escapes thisfaute de mieuxaspect; its author has been at work on them for nearly forty years and did not come to them from a sense of misplaced desperation.

Soil-transmitted helminthiasis among mothers and their pre-school children on Unguja Island, Zanzibar with emphasis upon ascariasis

Parasitology ◽  
2008 ◽  
Vol 135 (12) ◽  
pp. 1447-1455 ◽  
Author(s):  
J. R. STOTHARD ◽  
E. IMISON ◽  
M. D. FRENCH ◽  
J. C. SOUSA-FIGUEIREDO ◽  
I. S. KHAMIS ◽  
...  
Keyword(s):  
Child Health ◽  
School Children ◽  
Negative Relationship ◽  
Well Being ◽  
Sub Saharan Africa ◽  
Cross Sectional ◽  
The North ◽  
Sub Saharan ◽  
And Child Health ◽  
Soil Transmitted Helminthiasis

SUMMARYSoil-transmitted helminthiasis (STH) is a scourge to the health and well-being of infants and pre-schoolchildren throughout many parts of sub-Saharan Africa. To improve maternal and child health, regular de-worming is recommended and often delivered from mother and child health (MCH) clinics, yet there have been few studies monitoring the progress and impact of interventions on local levels of disease. A cross-sectional parasitological survey, supplemented with questionnaires, was therefore conducted across 10 Ungujan villages examining mothers (n=322) and their pre-school children (n=359). Within children, mean prevalence of ascariasis, trichuriasis and hookworm was 8·6% (95% CI 5·5–11·8), 18·9% (95% CI 14·5–23·4) and 1·7% (95% CI 0·2–3·5) while in mothers mean prevalence was 6·7% (95% CI 3·7–9·7), 11·9% (95% CI 8·0–15·8) and 1·9% (95% CI 0·2–3·5), respectively. There was, however, significant spatial heterogeneity of STH by village, 2 villages having much elevated levels of infection, although general access to anthelminthics and utilization of village MCH clinics was good. Levels of parasite aggregation (k) were determined and a multilevel logistic regression model identified access to a household latrine [OR=0·56 (95% CI 0·32–0·99)] and having an infected household member [OR=3·72 (95% CI 2·22–6·26)] as observed risk factors. To further investigate worm burdens of Ascaris lumbricoides, adult worms were expelled using Combantrin® and measured. A negative relationship between mean worm burden and mean worm mass was found. Villages in the north of Unguja represent locations where there is elevated prevalence of both ascariasis and trichuriasis and it appears that local factors are particularly favourable for transmission of these helminths. From a perspective of control, in such locations, intervention efforts should be stepped up and greater efforts placed upon improving household sanitation.

scholarly journals Plasmodium falciparum resistance to artemisinin-based combination therapies: A sword of Damocles in the path toward malaria elimination

Parasite ◽  
2018 ◽  
Vol 25 ◽  
pp. 24 ◽  
Author(s):  
Manel Ouji ◽  
Jean-Michel Augereau ◽  
Lucie Paloque ◽  
Françoise Benoit-Vical
Keyword(s):  
Plasmodium Falciparum ◽  
Multidrug Resistant ◽  
Sub Saharan Africa ◽  
High Rate ◽  
Combination Therapies ◽  
Parasite Resistance ◽  
The Past ◽  
Sub Saharan ◽  
Treatment Policies ◽  
Related Mortality

The use of artemisinin-based combination therapies (ACTs), which combine an artemisinin derivative with a partner drug, in the treatment of uncomplicated malaria has largely been responsible for the significant reduction in malaria-related mortality in tropical and subtropical regions. ACTs have also played a significant role in the 18% decline in the incidence of malaria cases from 2010 to 2016. However, this progress is seriously threatened by the reduced clinical efficacy of artemisinins, which is characterised by delayed parasitic clearance and a high rate of recrudescence, as reported in 2008 in Western Cambodia. Resistance to artemisinins has already spread to several countries in Southeast Asia. Furthermore, resistance to partner drugs has been shown in some instances to be facilitated by pre-existing decreased susceptibility to the artemisinin component of the ACT. A major concern is not only the spread of these multidrug-resistant parasites to the rest of Asia but also their possible appearance in Sub-Saharan Africa, the continent most affected by malaria, as has been the case in the past with parasite resistance to other antimalarial treatments. It is therefore essential to understand the acquisition of resistance to artemisinins by Plasmodium falciparum to adapt malaria treatment policies and to propose new therapeutic solutions.

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