scholarly journals High occurrence and unusual serotype diversity of non-typhoidal Salmonella in non-clinical niches, Angola

2016 ◽  
Vol 145 (5) ◽  
pp. 883-886 ◽  
Author(s):  
P. ANTUNES ◽  
J. CAMPOS ◽  
J. MOURÃO ◽  
T. G. RIBEIRO ◽  
C. NOVAIS ◽  
...  
Keyword(s):  
Developing Countries ◽  
African Country ◽  
Animal Health ◽  
Wild Animals ◽  
African Region ◽  
High Occurrence ◽  
Sub Saharan ◽  
First Time ◽  
Comprehensive Surveillance ◽  
High Diversity

SUMMARYNon-typhoidal Salmonella is an important burden, particularly in developing countries of the African region. We report for the first time in Angola, a sub-Saharan African country with commercial/travel relationships with Europe, an unexpectedly high occurrence of Salmonella (n = 12/63, 19%) from a high diversity of sources, particularly farm and wild animals. The detection of diverse serotypes (n = 12), involving putative new S. enterica subsp. salamae serotypes, is also of note, reinforcing the need for a comprehensive surveillance in Angola critical to identify animal/food/environmental sources of salmonellosis with impact on animal health, local people, tourists and exported products.

What Should be the Focus of Agricultural Policy Reforms in Sub-Saharan Africa? A CGE Analysis

2019 ◽  
Vol 13 (4) ◽  
pp. 401-435
Author(s):  
Jean Balié ◽  
Badri Narayanan
Keyword(s):  
Developing Countries ◽  
Import Substitution ◽  
Jel Classification ◽  
Sub Saharan Africa ◽  
Market Development ◽  
Policy Reforms ◽  
Sub Saharan ◽  
The Impact ◽  
First Time ◽  
Data Constraints

While a lot of research has been conducted on agricultural subsidies and other forms of policy transfers in developed and developing countries alike, substantial data constraints have characterised those conducted in developing countries. For this study, we employ a novel and uniquely developed dataset on these policies in Sub-Saharan Africa (SSA), to analyse the impact of policy reforms, using the latest available GTAP 9.1 Data Base, in the widely employed GTAP framework, for the first time. We simulate the scenarios of removal of output subsidies, removal of ‘market development gaps’ within and outside the country. Our results indicate that removing market development gaps is likely to increase the agricultural output without affecting trade much, while removing the subsidies could harm output a lot by import-substitution of the costly domestic output. We conclude that governments in SSA may do well to focus on developing their markets better rather than cutting the assistance to their farmers, which could in fact be counter-productive instead of raising the efficiency of domestic farmers through competition. JEL Classification: C68, Q11, Q13, Q17, Q18

scholarly journals The significance of citation impact indicators of research performance in the developing countries of sub-Saharan Africa

2014 ◽  
Vol 10 (1) ◽  
Author(s):  
Japhet Bakuwa
Keyword(s):  
Developing Countries ◽  
Web Of Science ◽  
Research Output ◽  
Research Performance ◽  
Citation Impact ◽  
Sub Saharan Africa ◽  
African Region ◽  
Isi Web Of Science ◽  
Impact Indicators ◽  
Sub Saharan

This paper argues that Sub-Saharan Africa needs to produce more journals indexed by ISI Web of Science (WoS). Researchers from the region should also publish in other ISI indexed, reputable and high impact journals such as Nature and Science. Inevitably, this will make Sub-Saharan African researchers visible and globally competitive. The Sub- Saharan African region has only about 40 journals out of over 12 000 journals that have been indexed by the ISI Web of Science (WoS). Arguably, ranking of universities across the globe and qualification for Nobel Prizes are determined by metrics-based evaluation of research performance. Sub-Saharan Africa is poorly represented on the world university rankings. The region has also produced only six Nobel Prize award winners from 1901 to 2010. In the same period, USA, UK and Germany produced 326, 116 and 102 recipients respectively. While there are some limitations on the use of citation indicators to evaluate research output, this researcher argues that citation impact indicators of research performance provide policymakers, researchers and funding agencies with an objective measure for assessing research performance and therefore are of great significance in the developing countries of Sub-Saharan Africa.

scholarly journals Climate Change and Young People in Uganda: A Literature Review

2021 ◽  
pp. 107049652110471
Author(s):  
Anthony Mugeere ◽  
Anna Barford ◽  
Paul Magimbi
Keyword(s):  
Climate Change ◽  
Young People ◽  
Literature Review ◽  
African Country ◽  
Sub Saharan Africa ◽  
East African ◽  
African Region ◽  
Economic Resilience ◽  
Livelihood Options ◽  
Sub Saharan

The disruptions of anthropogenic climate change are increasingly severe. People living in sub-Saharan Africa are especially exposed to these risks, and amongst them young people. It is well established that climate disruptions have the potential to halt education, displace populations, and wreck infrastructure. This rigorous literature review focuses on climate change in the landlocked East African country of Uganda, demographically the world’s third youngest country, where young people struggle to get by due to insufficient work opportunities. Extended to other countries in the Eastern and Central African region, the review considers what is known about the intersection of youth livelihoods and climate change; young people’s susceptibility to climate disruption due to limited resources and livelihood options; and the constraints around their responses. The review findings suggest the need for substantial youth informed interventions to bolster young people’s economic resilience and adaptive capacity given the worsening climate change and prolonged population growth.

Chemical Constituents and Antibacterial Activity of Cissus Aralioides.

2020 ◽  
Vol 17 ◽  
Author(s):  
Balogun Olaoye Solomon ◽  
Ajayi Olukayode Solomon ◽  
Owolabi Temitayo Abidemi ◽  
Oladimeji Abdulkarbir Oladele ◽  
Liu Zhiqiang
Keyword(s):  
Plant Extract ◽  
Chemical Constituents ◽  
Ethyl Acetate Fraction ◽  
Antibacterial Activities ◽  
Sub Saharan Africa ◽  
Chromatographic Purification ◽  
Whole Plant ◽  
Sub Saharan ◽  
First Time

: Cissus aralioides is a medicinal plant used in sub-Saharan Africa for treatment of infectious diseases; however the chemical constituents of the plant have not been investigated. Thus, in this study, attempt was made at identifying predominant phytochemical constituents of the plant through chromatographic purification and silylation of the plant extract, and subsequent characterization using spectroscopic and GC-MS techniques. The minimum inhibitory concentration (MICs) for the antibacterial activities of the plant extract, chromatographic fractions and isolated compounds were also examined. Chromatographic purification of the ethyl acetate fraction from the whole plant afforded three compounds: β-sitosterol (1), stigmasterol (2) and friedelin (3). The phytosterols (1 and 2) were obtained together as a mixture. The GC-MS analysis of silylated extract indicated alcohols, fatty acids and sugars as predominant classes, with composition of 24.62, 36.90 and 26.52% respectively. Results of MICs indicated that friedelin and other chromatographic fractions had values (0.0626-1.0 mg/mL) comparable with the standard antibiotics used. Characterization of natural products from C. aralioides is being reported for the first time in this study.

scholarly journals Labellum and gynostemium micromorphology in Polystachya (Orchidaceae)

2020 ◽  
Vol 307 (1) ◽  
Author(s):  
Mytnik Joanna ◽  
Davies L. Kevin ◽  
Narajczyk Magdalena ◽  
Łuszczek Dorota ◽  
Kubiak Joanna ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Sub Saharan Africa ◽  
Capitate Trichomes ◽  
Sub Saharan ◽  
First Time ◽  
Scanning Electron

AbstractPolystachya is a large, pantropical orchid genus of 200 species, most of which occur as epiphytes in sub-saharan Africa. The three-lobed labellum of most Polystachya species possesses a fleshy callus and various types of trichomes and papillae. In this paper, we present the results of micromorphological studies on the labellum of 20 species, representing eight of the 13 sections in the genus, using scanning electron microscopy (SEM). Our results show the scale of infrageneric diversity of trichomes and papillae relative to the sampled sections. They also demonstrate the taxonomic value of labellar micromorphology at the sectional level. The study revealed seven types of papillae and five types of trichomes (uni- and multi-cellular) in Polystachya, some of which, are described here for the first time. Clavate trichomes are the most common and are present in 60% of the species studied. Moniliform trichomes mainly occur in sect. Polystachya and are strongly characteristic of the section. Pseudopollen is formed by fragmentation of moniliform trichomes or the detachment of other trichomes as bicellular units. We provide, for the first time, evidence for the detachment of the terminal cells of capitate trichomes.

scholarly journals Schistosoma mansoni eggs induce Wnt/β-catenin signaling and activate the protooncogene c-Jun in human and hamster colon

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Jakob Weglage ◽  
Friederike Wolters ◽  
Laura Hehr ◽  
Jakob Lichtenberger ◽  
Celina Wulz ◽  
...  
Keyword(s):  
Signaling Pathways ◽  
Colorectal Carcinogenesis ◽  
Sub Saharan Africa ◽  
Interleukin 4 ◽  
Health Burden ◽  
Sub Saharan ◽  
Considerable Morbidity ◽  
First Time

AbstractSchistosomiasis (bilharzia) is a neglected tropical disease caused by parasitic flatworms of the genus Schistosoma, with considerable morbidity in parts of the Middle East, South America, Southeast Asia, in sub-Saharan Africa, and particularly also in Europe. The WHO describes an increasing global health burden with more than 290 million people threatened by the disease and a potential to spread into regions with temperate climates like Corsica, France. The aim of our study was to investigate the influence of S. mansoni infection on colorectal carcinogenic signaling pathways in vivo and in vitro. S. mansoni infection, soluble egg antigens (SEA) and the Interleukin-4-inducing principle from S. mansoni eggs induce Wnt/β-catenin signaling and the protooncogene c-Jun as well as downstream factor Cyclin D1 and markers for DNA-damage, such as Parp1 and γH2a.x in enterocytes. The presence of these characteristic hallmarks of colorectal carcinogenesis was confirmed in colon biopsies from S. mansoni-infected patients demonstrating the clinical relevance of our findings. For the first time it was shown that S. mansoni SEA may be involved in the induction of colorectal carcinoma-associated signaling pathways.

Assessing Critical Risk Factors (CRFs) to Sustainable Housing: The Perspective of a sub-Saharan African Country

2021 ◽  
pp. 102385
Author(s):  
Michael Atafo Adabre ◽  
Albert P.C. Chan ◽  
David J. Edwards ◽  
Emmanuel Adinyira
Keyword(s):  
Risk Factors ◽  
African Country ◽  
Sustainable Housing ◽  
Sub Saharan

Gendering Corporate Boards and Conditional Effectiveness of Board Processes: Insights from a Sub-Saharan African Country

2021 ◽  
pp. 097215092110362
Author(s):  
Obi Berko O. Damoah ◽  
Yvonne Ayerki Lamptey ◽  
Alex Anlesinya ◽  
Barbara Naa Amanuah Tetteh
Keyword(s):  
Corporate Governance ◽  
African Country ◽  
Board Members ◽  
Corporate Boards ◽  
Corporate Board ◽  
Board Processes ◽  
Board Directors ◽  
Women On Corporate Boards ◽  
Sub Saharan ◽  
Board Level

This study explored how and when female board members make effective contribution to board processes in a sub-Saharan African country (Ghana), a context characterized by low female representation on corporate boards, but highly under-researched with respect to the gender and corporate governance literature. The study is based on interview data from 25 female board directors in Ghana. The results show that women on corporate boards contribute to effective board processes and outcomes when their proposed ideas during board meetings are accepted by other board members, implemented by management and impact positively on organizational outcomes such as enhanced financial, product and staff outcomes. These effective contributions of female board directors to corporate board processes can further be enhanced by suitable female directors’ personal-level conditions such as their human capital (advanced degree and professional qualification, and past board membership experience) and family support (supportive husbands, and having grown up children), as well as board-level conditions like occupying chairperson/leadership position on the board or committees, and regular attendance at board meetings. Consequently, this research study contributed to the gender and corporate governance literature by providing new evidence from under-researched geographical context on how women on corporate boards contribute to effective board processes. It further highlights personal and board-level conditions that are necessary for greater contributions of female directors to corporate board processes and outcomes in male-dominated societies and boards.

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