Informational linear capacity of fiber-optic backbones of the countries of the west coast of Africa

This article describes an assessment of the ways in which the international digital data backbone is serviced, which is determining the development of the economy. The focus of the article is on the west coast of Africa and direct interregional data delivery channels. The concept of informational linear capacity was introduced and substantiated

Does certified organic agriculture increase agroecosystem health? Evidence from four farming systems in Uganda

Over the past decades, the number of certified organic farms have increased significantly in Uganda. One assumption is that certified organic agriculture contributes to economic, social and ecological health of agroecosystems. In the literature, however, there is thin empirical evidence to support such claims. We therefore developed health indicators and contrasted data from four Ugandan farming systems with principles and objectives of organic agriculture. We identified four health patterns (ecology-driven, economically struggling, socially-driven, and hanging in) demonstrating the impact of farm management on agroecosystem health and trade-offs between health domains. Ecological farm health is strengthened only if the conversion goes beyond ‘organic by default’. Market-oriented specialization can create lock-in situations if production strategies cannot be changed easily. Food shortages occur when additional income from certified production does not compensate for the reduced area and effort devoted to food crops. We conclude that the positive effects of organic certification on agroecosystem health cannot be taken for granted. Interventions promoting organic agriculture should acknowledge risks smallholder farmers take by converting to cash crop-oriented certified organic farming. A challenging question will be how aspects of wellbeing and social health can be translated into certification standards and thus product attributes

Characteristics and outcomes of patients with multiple myeloma at the Uganda Cancer Institute

Purpose: Data on multiple myeloma (MM) in sub-Sahara Africa is scarce. In Uganda, there is a progressively increasing incidence of MM over the years. Methods: We performed a retrospective study on 217 patients with MM at the UCI using purposive sampling method. The objectives of the study were to determine the clinical characteristics, treatment outcomes, 5 year overall survival and predictors of survival of patients with MM at the UCI from 01 January 2008 to 31 December 2012. Results: There were 119 (54.8%) males; the mean(SD) age of the study population at presentation was 59(12.8) years; 183(84.3%) patients presented with bone pain, and 135 (61.9%) had skeletal pathology; 186(85.3%) were HIV negative, and 152(70%) had Durie-Salmon stage III. The median overall survival was 2.5 years, (95% CI, 0.393-0.595); factors significantly associated with worse survival were Durie-Salmon stage III disease, HR=5.9, 95% CI (1.61 \u2013 21.74; P=0.007) and LDH >225 U/L HR=3.3, 95% CI (0.57 \u2013 5.92; P=0.029). Conclusion: Most patients with multiple myeloma at the UCI were diagnosed at a relatively young age, presented with late stage disease and bone pain, and had a shorter survival time. Factors associated with worse survival were Durie-Salmon stage III and LDH >225 U/L

Mise en œuvre de façon 'synergique' des mécanismes d'accès et de partage des avantages dans le cadre du Traité sur les ressources phytogénétiques, de la Convention sur la diversité biologique et du Protocole de Nagoya

Le Traité international sur les ressources phytogénétiques pour l'alimentation et l'agriculture (TIRPAA) et la Convention sur la diversité biologique (CDB) engagent leurs Etats-membres à mettre en œuvre des systèmes d'accès et de partage des avantages très différents : d’un côté, le système établi en vertu du TIRPAA vise à renforcer la mise en commun et le partage au niveau international de la diversité génétique ; de l’autre côté, le système de la CDB a pour objectif de maximiser le contrôle souverain de chaque pays sur ses ressources génétiques. La mise en œuvre nationale de ces deux systèmes s'est révélée relativement lente. Ce retard est notamment dû au fait que dans de nombreux pays les décideurs nationaux ne savent pas vraiment comment gérer l'interface entre ces deux systèmes d'accès et de partage des avantages. Sur la base des recherches et des expériences en matière d’élaboration des politiques conduites dans plusieurs pays, les auteurs identifient en premier lieu les questions que les décideurs politiques nationaux doivent aborder et les étapes qu’ils doivent suivre pour la mise en œuvre du Système multilatéral d'accès et de partage des avantages du TIRPAA. En second lieu, les auteurs analysent les points d'intersection, au niveau national, entre le Système multilatéral d'accès et de partage des avantages du TIRPAA et les mécanismes mis en place (ou qui sont actuellement élaborés) en application de la CDB et de son Protocole de Nagoya, récemment adopté. En troisième lieu, les auteurs analysent les facteurs qui contribuent dans de nombreux pays à un manque de coordination entre les institutions publiques nationales chargées de l’environnement et celles chargées de l’agriculture qui ont pour mandat de diriger la mise en œuvre nationale de ces accords internationaux

The use of common bean (Phaseolus vulgaris ) traditional varieties and their mixtures with commercial varieties to manage bean fly (Ophiomyia spp .) infestations in Uganda

The bean fly (Ophiomyia spp.) is considered the most economically damaging field insect pest of common beans in Uganda. Despite the use of existing pest management approaches, reported damage has remained high. Forty-eight traditional and improved common bean varieties currently grown in farmers’ fields were evaluated for resistance against bean fly. Data on bean fly incidence, severity and root damage from bean stem maggot were collected. Generalized linear mixed model (GLMM) revealed significant resistance to bean fly in the Ugandan traditional varieties. A popular resistant traditional variety and a popular susceptible commercial variety were selected from the 48 varieties and evaluated in pure and mixed stands. The incidence of bean fly infestation on both varieties in mixtures with different arrangements (systematic random versus rows), and different proportions within each of the two arrangements, was measured and analysed using GLMMs. The proportion of resistant varieties in a mixture and the arrangement type significantly decreased bean fly damage compared to pure stands, with the highest decrease in damage registered in the systematic random mixture with at least 50 % of resistant variety. The highest reduction in root damage, obvious 21 days after planting, was found in systematic random mixtures with at least 50 % of the resistant variety. Small holder farmers in East Africa and elsewhere in the world have local preferences for growing bean varieties in genetic mixtures. These mixtures can be enhanced by the use of resistant varieties in the mixtures to reduce bean fly damage on susceptible popular varieties

Track D Social Science, Human Rights and Political Science

Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/138414/1/jia218442.pd