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Now showing items 1211-1230 of 2252
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Large-scale land acquisitions exacerbate local farmland inequalities in Tanzania
(National Academy of Sciences, 2023-07-31)Land inequality stalls economic development, entrenches poverty, and is associated with environmental degradation. Yet, rigorous assessments of land-use interventions attend to inequality only rarely. A land inequality ... -
Larvicidal activity of Hypoestes forskaolii (Vahl) R. Br root extracts against Anopheles gambiae Giless.s, Aedes aegypti L, and Culex quinquefasciatus Say
(Dove Press, 2019-04-26)Aim: This study aimed to evaluate larvicidal activity of Hypoestes forskaolii R. Br root extract against 3rd instar Anopheles gambiae, Aedes aegypti, and Culex quinquefasciatus. Methods: A protocol developed by the World ... -
Larvicidal Activity of Leaf and Stem extracts of Sterculiaquinquelob(Garcke) K. SchumAgainst the Anopheles gambiae Giles S.S, Culexquinquefasciatus Say and AedesaegyptiMosquito
(American Journal of Research Communication, 2014)Larvicidal activity of crude petroleum ether (PE), ethyl acetate (EtOAc) and methanol (MeOH) extracts of leaves and stem barks of Sterculiaquinqueloba (Garcke) K. Schum were testedagainst the late 3 instar larvae of ... -
Larvicidal and phytochemical analysis of Hypoestes forskaolii extracts against Anopheles gambiae, Aedes aegypti and Culex quinquefasciatus
(NM-AIST, 2020-08)This research evaluated larvicidal potencies and phytochemical analysis of Hypoestes forskaolii (vahl) R. Br root extracts. Larvicidal activities were tested to Anopheles gambiae, Aedes aegypti and Culex quinquefasciatus. ... -
Larvicidal potential of wild mushroom extracts against Culex quinquefasciatus Say, Aedes aegypti and Anopheles gambiae Giles S.S
(American Journal of Research Communication, 2014)The crude extracts from six wild mushrooms namely Lactarius densifolius, Lactarius gymnocarpoides, Russula cellulata, Russula kivuensis, Amanita phalloides and Boletus species were evaluated for larvicidal activity against ... -
The Last Will Be First: Water Transfers from Agriculture to Cities in the Pangani River Basin, Tanzania
(Water Alternatives, 2012-10)Water transfers to growing cities in sub-Sahara Africa, as elsewhere, seem inevitable. But absolute water entitlements in basins with variable supply may seriously affect many water users in times of water scarcity. This ... -
Latent class evaluation of the performance of serological tests for exposure to Brucella spp. in cattle, sheep, and goats in Tanzania
(PLOS Medicine, 2021-08-24)Brucellosis is a neglected zoonosis endemic in many countries, including regions of sub-Saharan Africa. Evaluated diagnostic tools for the detection of exposure to Brucella spp. are important for disease surveillance and ... -
Lawsone isomers, lawsone ether and bilawsone for dye-sensitized solar cells applications: DFT and UV-Vis studies.
(Elsevier Inc., 2020-01-01)Structural and optoelectronic properties of lawsone (L), lawsone ether (LE) and bilawsone (BL) were studied theoretically using the DFT and time-dependent DFT methods with hybrid functional B3LYP5 and 6-311G (2d,p) basis ... -
Lawsone, lawsone ether and bilawsone for dyesensitized solar cells application
(NM-AIST, 2020-02)Dye-sensitized solar cells (DSSCs) had turned up as a novel class of low-cost solar cells that can be fabricated easily compared to silicon solar cells. The DSSCs based on natural sensitizers are able to generate clean ... -
Leaf and seed yield of jute mallow (Corchorus olitorius L.) accessions under field conditions for two consecutive growing seasons
(Taylor & Francis Group, 2017-04-11)Jute mallow is a nutritious leafy vegetable used by many people in Africa. The purpose of this study was to select accessions with high leaf yield and seed yield. We investigated seven agronomic traits that are related ... -
Leguminous cover crops differentially affect maize yields in three contrasting soil types of Kakamega, Western Kenya
(Journal of Agriculture and Rural Development in the Tropics and Subtropics (JARTS), 2011)Maize production in smallholder farming systems in Kenya is largely limited by low soil fertility. As mineral fertilizer is expensive, green manuring using leguminous cover crops could be an alternative strategy for farmers ... -
Levels and distribution of progesterone in receiving waters and wastewaters of a growing urban area.
(Water Science & Technology, 2019-09-01)This study aimed at investigating the levels and distribution of progesterone in receiving waters and wastewaters in Arusha, a fast-growing urban area and the third largest city in Tanzania. Specifically, the study was ... -
Levels of community participation and satisfaction with decentralized wildlife management in Idodi-Pawaga Wildlife Management Area, Tanzania
(Taylor & Francis online, 2017-09-14)Participatory approaches to conservation are viewed as a plausible alternative to the old ‘fortress conservation’ approach. The design and implementation of these approaches in developing countries have tended to embrace ... -
Leveraging peer-to-peer farmer learning to facilitate better strategies in smallholder dairy husbandry
(SAGE journal, 2020-12-02)Peer-to-peer learning paradigm is seldom used in studying how farmers can increase yield. In this article, agent-based modelling has been applied to study the chances of dairy farmers increasing annual milk yield by learning ... -
Life cycle analysis of potential municipal solid wastes management scenarios in Tanzania: the case of Arusha City
(Springer Nature, 2021-01-07)The municipal solid wastes (MSW) management technologies in most cities of developing countries pose a continuous risk of contaminating the environment and affecting human health adversely; often because MSW technologies ... -
Life cycle environmental assessment of electric and internal combustion engine vehicles in China
(Elsevier Ltd., 2021-02-20)Promoting electric vehicles (EVs) is an important measure to ensure energy security, improve air quality, and mitigate global climate change. However, the emission reduction impacts of EVs in China have been widely debated ... -
Lifetime improved WSN using enhanced-LEACH and angle sector-based energy-aware TDMA scheduling
(Cogent Engineering, 2020-07-20)Network lifetime remains as a significant requirement in Wireless Sensor Network (WSN) exploited to prolong network processing. Deployment of low power sensor nodes in WSN is essential to utilize the energy efficiently. ... -
Linking rhizosphere bacterial diversity and soil fertility in tobacco plants under different soil types and cropping pattern in Tanzania: A pilot study
(Heliyon, 2020-07-08)Tobacco (Nicotiana tabacum L.), one of the major crop plants in Tanzania, cropping affects the level of soil fertility, but the reason has not been known. Plant rhizosphere plays an important role in affecting soil fertility ... -
Livestock Browsing Threatens the Survival of Balanites aegyptiaca Seedlings and Saplings in Dinder Biosphere Reserve, Sudan
(Taylor & Francis Online, 2021-06-03)While the impact of livestock grazing has been frequently assessed for grasses, little is known about how livestock affects tree seedlings and saplings. We explored the effects of goat, cattle and camel browsing on the ... -
Livestock movement informs the risk of disease spread in traditional production systems in East Africa
(Springer Nature Limited, 2021-08-12)In Africa, livestock are important to local and national economies, but their productivity is constrained by infectious diseases. Comprehensive information on livestock movements and contacts is required to devise appropriate ...