Browsing Life sciences and Bio-engineering by Issue Date
Now showing items 61-80 of 1024
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Efficiency of a constructed wetland in removing microbial contaminants from pre-treated municipal wastewater
(Elsevier, 2014)In most capital towns, urban wastewater discharging into the environment is highly enriched in a wide range of microbial contaminants, thus threatening people’s health and the quality of the receiving basin water and other ... -
Climate change and decline in water resources in Kikuletwa Catchment, Pangani, Northern Tanzania
(African Journal of Environmental Science and Technology, 2014-01)The sensitivity of hydrology and water resources to climate variation in Kikuletwa Catchment, Pangani Basin, northern Tanzania was assessed using 30 years of river level and climate data as well as questionnaire, focused ... -
Effects of spray-drying on w/o/w multiple emulsions prepared from a stearic acid matrix
(2014-01-01)The goal of this study was to explore the effects of spray-drying on w/o/w double emulsions of methyltestosterone (MT) loaded in a stearic acid matrix. MT-loaded nanoparticles were formulated by a water-in-oil-in-water ... -
A review of the biology and detection methods of Cryptosporidium and Giardia spp in water sources and situation in Tanzania
(World Journal of Water Resource and Environmental Science, 2014-04)Cryptosporidium and Giardia species are the two most common enteric protozoan pathogens which affect humans worldwide. In both developed and developing countries. In immunocompetent individuals they cause self limiting ... -
Neutralization of Interleukin-10 Significantly Enhances Gamma Interferon Expression in Peripheral Blood by Stimulation with Johnin Purified Protein Derivative and by Infection with Mycobacterium avium subsp. paratuberculosis in Experimentally Infected Cattle with Paratuberculosis
(American Society for Microbiology, 2014-04)Monoclonal antibody neutralization of interleukin-10 (IL-10) increased Johnin purified protein derivativeinduced whole-blood gamma interferon (IFN- ) secretion 23-fold and also increased IFN- secretion ninefold following ... -
An experimental hut study to quantify the effect of DDT and airborne pyrethroids on entomological parameters of malaria transmission.
(Malaria Journal, 2014-04-01)Background Current malaria vector control programmes rely on insecticides with rapid contact toxicity. However, spatial repellents can also be applied to reduce man-vector contact, which might ultimately impact malaria ... -
Potential opportunities and constraints in utilising AVRDC-distributed vegetable seedkit in Arumeru District, Tanzania
(African-American Institute, 2014-05-10)The vast majority of yield growth in African agriculture to date has been due to improved seed varieties, as opposed to technological improvements in cultivation practices or other inputs. However, the lack of development ... -
Comparative analysis of clinical breakpoints, normalized resistance interpretation and epidemiological cut-offs in interpreting antimicrobial resistance of Escherichia coli isolates originating from poultry in different farm types in Tanzania
(Microbiology Society, 2014-07-14)Introduction. Existing breakpoint guidelines are not optimal for interpreting antimicrobial resistance (AMR) data from animal studies and low-income countries, and therefore their utility for analysing such data is limited. ... -
Effect of Plant Powders on Survival, Oviposition and Progeny Development of Callosobruchus Maculatus for Protection of Leguminous Seeds during Post Harvest
(International Journal of Science and Research, 2014-08)Insect infestation on leguminous plants particularly cowpea causes high destruction that lead to nutritional and economic losses. Hence powders from two medicinal plants namely Bersama abyssinica and Aristolochia elegans ... -
Antimicrobial Activity of Tetradenia riparia (Hochst.) Lamiaceae, a Medicinal Plant from Tanzania
(European Journal of Medicinal Plants, 2014-08-08)Aims: To evaluate the antibacterial activity of Tetradenia riparia crude extracts against Escherichia coli, Staphylococcus aureus and Enterococcuss faecalis. The phytochemicals that are responsible for the bioactivity ... -
Differences in Hypertension Risk Factors between Rural Maasai in Ngorongoro and Urban Maasai in Arusha Municipal: A Descriptive Study
(Journal of Applied Life Sciences International, 2014-08-08)Background: Many ethnic groups within Tanzania are migrating from rural to urban areas in search of jobs and better livelihoods. One such group is the Maasai, whose distinct ethnicity and lifestyle potentially offers ... -
Preparation, characterization, and optimization of primaquine-loaded solid lipid nanoparticles
(Dovepress, 2014-08-11)Primaquine (PQ) is one of the most widely used antimalarial drugs and is the only available drug that combats the relapsing form of malaria. PQ use in higher doses is limited by severe tissue toxicity including hematological- ... -
Seroprevalence of Paratuberculosis in Goats and Sheep in Arusha, Northern Tanzania
(International Journal of Science and Research (IJSR), 2014-09)A retrospective cross‐sectional study was conducted to investigate the seroprevalence of paratuberculosis in small ruminants in the Arusha Municipality. A total of 383 samples comprising of 192 goat‐ and 191 sheep‐sera ... -
Assessing Vulnerability of Food Availability to Climate Change in Hai District, Kilimanjaro Region, Tanzania
(Scientific Research Publishing Inc, 2014-09)Climate change has a large effect on agriculture sector and, consequently, on the food available for residents of Hai District and other regions of Tanzania. Based on four decades of climate data, this study assessed the ... -
Antimicrobial and Antioxidant Activity of Crude Extracts of Rauvolfia caffra var. caffra (Apocynaceae) From Tanzania
(Canadian Center of Science and Education, 2014-09-24)As part of an effort to search for extracts and compounds with new antimicrobial efficacy to fight against bacterial resistance, the antibacterial activity of Rauvolfia caffra var. caffra (Sond.), a plant of family ... -
Responses of vegetation and soils to three grazing management regimes in a semi‐arid highland mixed crop‐livestock system
(John Wiley & Sons, Inc., 2014-10-14)Three grazing regimes [Cut‐and‐carry (CC), seasonal grazing (SG) and continuous grazing (CG)] currently applied in Tigrai region of northern Ethiopia were compared to identify the best grazing management in key native ... -
Enhanced oral bioavailability of the antiretroviral efavirenz encapsulated in poly(epsilon-caprolactone) nanoparticles by a spray-drying method.
(NANOMEDICINE, 2014-10-17)Aim: To encapsulate efavirenz (EFV) within poly(epsilon-caprolactone) (PCL) nanoparticles (NPs) and compare the oral pharmacokinetics with that of EFV-loaded micelles and pure EFV NPs. Materials & methods: EFV-loaded PCL ... -
Determination of Vitamins A, C and D Status Using Serum Markers and a 24-Hour Dietary Recall among Maasai Women of Reproductive Age
(Open Access Library Journal, 2014-11)We previously reported that the prevalence of oral thrush among Maasai women of reproductive age in Ngorongoro Conservation Area was abnormally high (32%) in the absence of immune-com- promising diseases such as HIV. This ... -
Preparation of rifampicin/poly(d,l-lactice) nanoparticles for sustained release by supercritical assisted atomization technique
(Elsevier, 2014-11)In this work supercritical assisted atomization (SAA) process was used for the co-precipitation of poly(d,l-lactide) (PDLLA) and rifampicin (RIF) as nanoparticles for sustained release applications. The effect of the ... -
Effects of acetylcholine and electrical stimulation on glial cell line-derived neurotrophic factor production in skeletal muscle cells
(Elsevier, 2014-11-07)Glial cell line-derived neurotrophic factor (GDNF) is a neurotrophic factor required for survival of neurons in the central and peripheral nervous system. Specifically, GDNF has been characterized as a survival factor for ...