Articles
Page 8 of 1169, showing 50 records out of 58450 total, starting on record 351, ending on 400
July 2019
Journal of Medicinal Plants Research
In vitro antiproliferative potential of Annona senegalensis Pers. and Allophylus africanus P Beauv. plant extracts against selected cancer cell lines
The medicinal plants Annona senegalensis Pers. and Allophylus africanus P Beauv. are used in Tanzania traditional medicine for the treatment of cancer. However, there is no scientific documentation on their therapeutic effectiveness. The present study evaluated antiproliferative potential as an indicator of anticancer activity of A. senegalensis and A. africanus plant species from Tanzania. A. senegalensis and A....
July 2019
African Journal of Pharmacy and Pharmacology
Evaluation of anthelmintic activity of ethanolic extracts of Carica papaya leaves using Paramphistomum cervi and Haemonchus contortus
The aim of this present study is to evaluate the anthelmintic activity of leaves extracts of Carica papaya using Paramphistomum cervi and Haemonchus contortus as the test worms. A range of concentrations (100, 50 and 25%) of ethanolic extracts of C. papaya were tested to assay the procedure. This is mainly applied for the determination of time of death (D) and time of paralysis (P) of the tested worms. After the...
July 2019
African Journal of Pharmacy and Pharmacology
Rational and experiential decision-making preferences of pharmacy students in Karachi, Pakistan
This study was conducted to examine the rational (systematic and rule-based) and experiential (fast and intuitive) thinking preferences of pharmacy students. This may assist in formulating learning and teaching tactics for decision-making leading to safe and optimized patient care services. Here, a validated psychometric tool, that is, the Rational Experiential Inventory (REI-40) survey was used. It was distributed to...
July 2019
African Journal of Agricultural Research
Sustainable intensifications of African agriculture through legume-based cropping and Brachiaria forage systems
Legume-based cropping system and Brachiaria forage system could play a significant role in enhancing food and nutrition security and sustainable intensifications of African agriculture. To reveal this potential, a comprehensive review of literatures and assessment was performed using key indicators in relation to food and nutrition quality, agro-ecological services and socioeconomic benefits. The key indicators for...
July 2019
African Journal of Agricultural Research
Effect of silver nitrate on shoot multiplication, rooting induction and plantlet characteristics of St. John’s wort (Hypericum perforatum L.) in vitro culture
St. John’s wort (Hypericum perforatum L.) is one of the introduced medicinal plants that have medicinal uses for anti-depressant. Germplasm conservation of St. John’s wort has been conducted at the laboratory for over ten years and plantlets showed a rosette growth. Therefore, laboratory investigations are necessary to be done to have better methods for obtaining normal growth of culture. In this study, we...
July 2019
African Journal of Agricultural Research
Screening of rice germplasms under salt stress by phenotypic and molecular markers
The evaluation of salinity tolerance of rice germplasms based on phenotype and genotype of 100 rice germplasm was identified at the seedling stage at the High Agricultural Technology Research Institute for Mekong Delta, Vietnam. Screening of the phenotype was done with 30 day old seedlings using salinized concentrations (EC = 8 and 15 dS/m). Results show that the growth of the varieties, the higher the salt...
July 2019
African Journal of Agricultural Research
Effects of NPK and plant tea manure (Tithonia diversifolia) on growth rate of amaranth (Amaranthus cruentus L.) in soilless growing media
Many countries are running short of agricultural land. Even where land appears to be available, soil fertility, water availability as well as nutrient mining still remains a challenge yet at the same time the world’s demand for food is rapidly increasing. Millions of square meters of soil are mined each year for use in vegetable nurseries and in backyard gardens in addition to excessive use of inorganic...
July 2019
African Journal of Agricultural Research
Drought tolerance assessment of melon germplasm searching for adaptation to climate change
Shortage of irrigation water at critical melon growth stages can be the most important limiting factor in the future due to climate change, especially in the Mediterranean region. Apart from the improvement of irrigation systems and crop management, the development of drought tolerant cultivars by genetic breeding is the best solution to achieve stable yields. Screening germplasm collections is a prerequisite for that....
June 2019
Journal of Geography and Regional Planning
Provision of down market urban housing in Kenya through strategic application of public
private partnerships
Article 43 1 (b) of the constitution of Kenya (2010), alongside other international treaties which the country is party to, obligates the state to provide housing for all Kenyans. These instruments place a greater emphasis on the slums and informal settlements upgrading and development, key among which is down market urban housing. Down market urban housing is principally housing for the low income urban households, or...
June 2019
African Journal of Environmental Science and Technology
A 50-year review on heavy metal pollution in the environment: Bivalves as bio-monitors
There has been a steady increase in the quantity and diversity of discharges that reach aquatic environment, both organic and inorganic, either synthesized or mobilized by man as a result of high population growth and development activities. This has led to the appearance of several types of pollution. Inland and coastal waters have been the most affected, since most major cities are located near water bodies....
June 2019
African Journal of Environmental Science and Technology
Rural households’ access to water resources under climate impacts based on field evidence in Tigray Region, Ethiopia
The climatic condition in Ethiopia is semi-arid and this has implications especially for rural communities in the country that are largely dependent on surface water. In water scarce areas across four districts in the Tigray region, a survey of 595 households was carried out, and two shared dialogue workshops was held. In this study, the following issues were examined: (i) Access to water in relation to sources,...
June 2019
African Journal of Environmental Science and Technology
Impacts of soil and water conservation practices on livelihood: The case of watershed in Gambela region, Ethiopia
In this study, multistage sampling technique was used. 132 households were selected out of 2,943 households in three sampled kebeles (the lowest administrative structure in Ethiopia) of Godere Woreda (Woreda is administrative structure above Kebele). Household-based interview, key informants interview (KII) and transect walk were used in order to collect data. Practiced households have harvested an average of 44.74...
June 2019
African Journal of Biochemistry Research
Partial purification of invertase from Momordica charantia (bitter melon) by three phase partitioning (TPP) method
The single step three-phase partitioning (TPP) method was evaluated for the purification of invertase from Momordica charantia. Optimum conditions for TPP method, that is, 70% ammonium sulfate saturation, 1:0.5 t-butanol ratio and 30 min incubation time lead to 20.28% efficiency and 10.48 fold partial purification. Total protein decreased from 34.86 mg to 0.68 mg in the homogenate, and the specific activity of the...
June 2019
African Journal of Biochemistry Research
Cadmium-induced toxicity and antioxidant enzyme responses in tissues and organs of African catfish (Clarias gariepinus)
Juveniles of Clarias gariepinus were exposed to different concentrations of cadmium chloride for 96 h under laboratory conditions using static bioassays with continuous aeration to determine its mean lethal concentration (LC50), biochemical alterations, bioaccumulation and histological pattern in a sub-lethal toxicity test. The median lethal concentration (LC50) at the end of the acute toxicity was 120.2 mgL-1. Also the...
June 2019
African Journal of Environmental Science and Technology
Assessment of heavy metals [As, Cu, Zn] from boreholes in the Western Region of Ghana
Ground water is the source of drinking water for many people around the world, especially in rural areas. A lot of parameters such as the concentrations of Arsenic, Copper, Zinc and other heavy metals in conjunction with other physico-chemical properties contribute to the suitability of water for drinking and for other purposes. This study was carried out in the Bibiani-Anhwiaso-Bekwai District of the Western region of...
June 2019
African Journal of Plant Science
Association and variation on boll and seed morphology among hybrids between linseed (Linum usitatissimum L.) and Linum bienne Mill. and their parents
Linseed is the only cultivated species from the genus Linum and selection is the most frequently used method to develop varieties from the crop resulting in the reduction of the genetic diversity. Linum bienne Mill. is genetically more diverse than linseed and produces fertile hybrids with linseed. The author aimed for the development of hybrids with new combinations of genes useful for variety development programme....
June 2019
African Journal of Plant Science
Adaptability and yield stability of bread wheat (Triticum aestivum) varieties studied using GGE-biplot analysis in the highland environments of South-western Ethiopia
The objectives of this study were to evaluate released Ethiopian bread wheat varieties for yield stability using the GGE biplot method and identify well adapted and high-yielding genotypes for the highland environments of South-western Ethiopia. Twenty five varieties were evaluated in a randomized complete block design with three replications at Dedo and Gomma during the main cropping season of 2016 and at Dedo,...
June 2019
African Journal of Plant Science
Determination of concentration of heavy metals in ginger using flame atomic absorption spectroscopy
Concentrations of four heavy metals (Ni, Zn, Cd and Pb) in two ginger varieties were determined using flame atomic absorption spectroscopy (FAAS) with wet acidic digestion methods. Results showed that the concentration of zinc is 0.86 to 1.17 mg/kg in Hargama and 0.63 to 0.87 mg/kg in Bolbo varieties. The concentration of nickel for Hargama and Bolbo are 0.15 to 0.18 and 0.17 to 0.21 mg/kg, respectively. Zinc...
June 2019
African Journal of Plant Science
Genetic diversity, variability and characterization of the agro-morphological traits of Northern Ghana Roselle (Hibiscus sabdariffa var. altissima) accessions
Roselle (Hibiscus sabdariffa var. altissima), a bast fibre crop adapted to the warm climate of Northern Ghana, offers a great economic potential not yet explored for lack of information on its distribution, collection, and genetic diversity. Little variability is reported in exotic genotypes to merit trait improvement. The objective of this study is to investigate distribution and diversity in roselle of Northern Ghana....
June 2019
International Journal of Biodiversity and Conservation
Farmers’ perceptions of the effectiveness of strategies for managing wildlife crop depredation in Ghana
Wildlife crop depredation represents a serious human-wildlife conflict around protected areas globally. It undermines farming livelihoods and local support for long-term conservation. Though studies have focused on different aspects such as the economics, spatiotemporal and vulnerability of farms to crop depredation, little attention has been given to the farmers’ evaluation of the effectiveness of the strategies...
June 2019
International Journal of Biodiversity and Conservation
Species’ composition and relative abundance of Lakeshore bird species around Lake Hawassa, Ethiopia
Ecological investigation of species diversity and relative abundance of birds was conducted from January to September 2017 at the shoreline of Lake Hawassa, SNNPR, Ethiopia. Three habitats namely-Tikurwuha wetland, Human settlement and Farmland were identified for the study. A total of 60 bird species under 14 orders and 37 families were identified. In general, 2720 individuals of 81 species of birds were recorded...
June 2019
Journal of Agricultural Extension and Rural Development
Revisiting the status of pastoral women’s access to and control over livelihood assets; evidences from Fafan zone, Somali region, Ethiopia
This paper focuses on assessing the status of pastoral women’s access to and control over livelihood assets in Fafan zone of Somali region, Ethiopia. In this study, the emphasis was given to the study populations’ level of access to and control over livelihood assets, factors affecting pastoral women’s asset ownership and the effects of pastoral women’s access to and control over livelihood...
June 2019
Journal of Engineering and Technology Research
Predicting tractor fuel consumption during ridging on a sandy loam soil in a humid tropical climate
A predictive model for the determination of optimum fuel consumption of a tractor during ridging operation has been developed. The model development involved field experimentations to determine the various parameters affecting tractor fuel consumption, like draught, speed, depth of cut, soil moisture content, cone index and width of cut. The field investigations were carried out at the farm of Rivers State Agricultural...
June 2019
International Journal of Nursing and Midwifery
Evaluation of midwives services scheme in a southwest Nigerian state: Policy implication for maternal and child health care programs
Midwives services scheme was implemented as an intervention program to mitigate maternal and child health care related challenges especially in the rural areas of Nigeria. This study was carried out to explore stakeholders’ perception of the scheme with a focus on perceived facilitators and barriers to its objective. Interviews conducted among health care workers were audio-recorded, transcribed verbatim, coded,...
June 2019
Journal of Entomology and Nematology
Seasonal pattern of Bancroftian Filariasis transmission in Ebonyi State, Nigeria
Bancroftian filariasis in Nigeria is endemic with 22.1% of the population thought to be infected. The main mosquito genera implicated with Wuchereria bancrofti transmission are Anopheles and Culex. The study was carried out to compare the infectivity rates of the vectors between the high transmission (rainy) and the low transmission (dry) seasons. Mosquitoes were sampled from houses and compared from six sentinel...
June 2019
Journal of Entomology and Nematology
Effects of neem leaf extracts on Lepidopteran pest species attacking Solanum macrocarpon L. (Solanaceae) in southern Togo
Lepidopteran pests cause considerable damage to Solanum macrocarpon Linnaeus (Solanaceae). Their control by the use of botanical extracts is a promising alternative to improper use of chemical insecticides. The objective of this study was to evaluate the effects of three doses of leaf extract of the neem tree, Azadirachta indica Adrien-Henri de Jussieu (Meliaceae) against Lepidopteran pest species that attack S....
June 2019
International Journal of Livestock Production
Cost effectiveness of feeding cattle genotypes fed rice straw with graded levels of concentrate supplements
Cattle genotypes and adoption of new feeding technology are necessary for improving beef cattle production and managing efficiently beef production costs. A study was conducted to determine the effects of cattle genotypes and levels of concentrate supplements on cost effectiveness of feedlot beef production in a Complete Randomized Block Design in 3×4 factorial arrangements with 4 replications. Feeds were...
June 2019
International Journal of Livestock Production
Production practices of local pig farmers in Ghana
Local pig production is of economic, nutritional and socio-cultural importance to livelihoods in Ghana. Data was collected from 176 local pig farmers in four regions of Ghana using pretested structured questionnaire. Majority of the farmers interviewed were males over 30 years and kept crossbred pigs (64%) with income (95%) as their main motivation. In terms of housing of pigs, most farmers use sheds (39%), about a...
June 2019
Journal of Ecology and The Natural Environment
Spatio-temporal distribution of banana weevil Cosmopolites Sordidus [Germar] and nematodes of various genera in Uganda: A case of smallholder banana orchards in Western Uganda
Smallholder farmers’ banana orchards in Western Uganda were used to study the spatio-temporal factors influencing the distribution of banana weevils and parasitic nematodes in tissue culture and non-tissue culture banana types using Nested case control design. Nematodes were extracted from randomly collected composite banana root samples from 20 banana orchards. The banana weevils were trapped in the rainy and dry...
June 2019
International Journal of Physical Sciences
A framework of 5G networks as the foundation for IoTs technology for improved future network
The quest for improved communications among objects interconnected in a network has long been awaited. The current fourth generation network (4G) does not enable the range of services the future require, as the fifth-generation network (5G) will be faster and more flexible. The 5G networks and Internet of Things technology seem to be the reality that best describes the basic principles of the future generation mobile...
June 2019
Journal of Yeast and Fungal Research
Exploring for the possibility of utilizing Pleurotus ostreatus to manage Eichhornia crassipes in Zimbabwe
The versatile nature of the commercial mushroom, Pleurotus ostreatus (Jacq.: Fr.) Kumm., provides basis for continued exploration of its biochemical processes during solid state fermentation on various lignocellulosic biomass as potential substrates. As a fungal organism, P. ostreatus feeds on lignocellulose by secreting various extracellular enzymes responsible for breaking down this organic polymer into smaller and...
June 2019
African Journal of Marketing Management
Customers’ satisfaction and brand loyalty at McDonald’s Maroc
Customer satisfaction is paramount to businesses success. It has been researched in business and marketing since the 1970s. If customer satisfaction is achieved brand loyalty often results. Because of that, brand loyalty has also been heavily researched in the last few decades. The purpose of the current research was to determine the drivers of customer satisfaction and brand loyalty, as well as examining the...
June 2019
Journal of African Studies and Development
Theoretical and conceptual framework for gender analysis of attitudes and adaptation mechanisms to climate change for sustainable livelihoods in Uganda
Climate change is one of the greatest challenges facing humanity today. The prerequisite to respond to the effects of climate change is widely recognized in scholarly literature. Climate change will bring with it increased frequency of natural disasters that distresses crop farmers and livestock keepers which eventually affects the livelihoods of rural households. Uganda is one of the African countries severely hit by...
June 2019
Philosophical Papers and Review
Existential phenomenology of religious liberty and security in religion and politics: A case study of Nigeria
That peace and justice is the solution to the flux and insecurity in the church and in the state cannot be denied. In fact, it is exigent to ask this question thus: can there be peace and justice in the religious institution in the first instance, without religious liberty and of course, civil liberty untwisted? There is no gain-saying the fact that sacred and secular histories have tended to answer this question in a...
June 2019
Journal of Cereals and Oilseeds
Moisture requirement and water productivity of selected rainfed rice varieties grown under controlled water environment in Ifakara, Tanzania
Moisture availability is a fundamental challenge to rice productivity in the rainfed environment. Most of the rice varieties released for cultivation under rainfed ecosystem in Tanzania are missing out on information about their moisture requirement under different soil moisture regimes. A pot experiment was conducted at Ifakara in a split-plot design. The main plots was assigned to water regimes of 100, 75, 50 and 25%...
June 2019
African Journal of Medical and Health Sciences
Foeto-maternal outcome of abruptio placentae at a Nigerian tertiary hospital
Abruptio placentae remain a major cause of maternal morbidity and mortality and a significant cause of perinatal loss especially in the resource poor countries like Nigeria. The objective of this study was to determine the risk factors, maternal and perinatal outcomes of patients managed for abruptio placentae at the University of Abuja Teaching Hospital, (UATH), during a five-year period. A retrospective 5-year review...
June 2019
Journal of Toxicology and Environmental Health Sciences
Therapeutic assessment of Idebenone versus Titanium dioxide nanoparticles induced pulmonary injury in adult albino Rats: Experimental study
Titanium dioxide nanoparticles are extensively used metal in cosmetics, sunscreens, food products, paints and drugs, producing oxidative stress and deoxyribonucleic acid damage. This study aimed to improve the overall (TiO2NP) use and decrease its related health hazards through the following objective among albino rates: To assess the TiO2NPs oral administration pulmonary induced toxic effect and to study the beneficial...
June 2019
International Journal of Fisheries and Aquaculture
Stress evaluation in dourado females (Salminus brasiliensis) submitted to two different methods of induced spawning
The goals of this study were to evaluate dourado female egg viability submitted to stress condition caused by two different reproductive induction methods, extruded and semi-natural. Sixteen females randomly chosen were induced with pituitary extract and allocated in two groups; the first, in which oocytes were manually extruded and the second group, females were allowed to naturally spaw. Blood samples were collected...
June 2019
International Journal of Fisheries and Aquaculture
Microbiota of catfish (Clarias gariepinus) tissues harvested from vials polluted with soil from
e-wastes dumpsite
In this study the microbiota of Clarias gariepinus tissues harvested from e-waste-soil polluted vials were assessed. Soil samples contaminated with e-waste were analyzed using standard analytical protocol while the microbial study was obtained using standard conventional microbiological techniques. The results revealed that the soil was sandy-loamy and blackish in colour. High organic matter (17.60%) and organic carbon...
June 2019
Journal of Development and Agricultural Economics
Economic burden of livestock disease and drought in Northern Tanzania
Livestock-dependent communities face considerable livestock disease and drought risk, which can impact herd value, income and consumption. This paper summarizes economic data collected from 404 households in Arusha and Manyara regions of Northern Tanzania in 2016. They provide estimates for (i) herd loss due to disease and drought as a fraction of herd value and income, (ii) the relative risk of disease and drought in...
June 2019
Journal of Civil Engineering and Construction Technology
Modeling of compressive strength of concrete using pulse velocity values from a non-destructive testing of concrete
In this research, ultrasonic pulse velocity (UPV) and crushing strength tests were carried out. Major factors which affect the strength of concrete such as concrete mix, aggregate size, and water-cement ratio were considered such that the model obtained could be used for the determination of strength of concrete elements made under different conditions. Three proposed models were calibrated using some of the data...
June 2019
Scientific Research and Essays
Hypoglycemic activities and biochemical parameters modulation of herbal formulations of Allium cepa L. in alloxanized diabetic rats
The aim of this work was to formulate and evaluate the herbal tablets of Allium cepa L. for in vitro tablet properties, hypoglycemic effects and for their effects on some biochemical parameters in diabetic rats. Aqueous extract of A. cepa L. was obtained by cold maceration and freeze dried. A. cepa L. extract compatibility with some tablet excipients was assessed using Fourier transform infrared spectroscopy. A. cepa L....
June 2019
Journal of AIDS and HIV Research
Demographic characteristics of clients up taking free counseling and testing services in Ibadan, Oyo
State, Nigeria
Nigeria has high burden of HIV/AIDS; antiretroviral therapy (ART) availability, a blessing to HIV patients. Unfortunately, most people do not know their HIV status. Association for Reproductive and Family Health (ARFH), Nigeria introduced mobile free HIV Counseling and Testing (HCT) services to complement its clinic services for HCT uptake. The characteristics of clients patronizing ARFH’s HCT services are...
June 2019
Journal of Brewing and Distilling
Comparison of unaged and barrel aged whiskies from the same Mash Bill using gas chromatography/mass spectrometry
This study provides qualitative data on sensory compounds present in barrel aged U.S. corn-based whiskies (primarily bourbon) and their unaged counterparts. Whisky samples of commercial brands by Heaven Hill, Buffalo Trace, Maker’s Mark, and Nelson’s Greenbrier Distillery were tested by direct injection gas chromatography/mass spectrometry. Chromatograms of samples were analyzed against NIST mass spectra to...
June 2019
Journal of Public Administration and Policy Research
Evolution of the public private partnership (ppps) and its application in down market urban housing in Kenya
The State Department of Housing in Kenya puts the housing demand in the country at 250,000 housing units per year, while actual supply is 50,000 units p.a. This demand for housing has accumulated to 1.85 million units as at 2018. This has led to the growing proliferation of slums and informal settlements, with the Department showing that there are over 500 such settlements. This state of affairs has been partly...
June 2019
African Journal of Cellular Pathology
Umbilical cord torsion leading to intrauterine fetal death
The umbilical cord is the critical organ that links the placenta and fetus. The intrauterine conditions and fetal activity influences the umbilical cord length. The normal umbilical cord is spiraled. By ultrasound, the spiral nature of the umbilical cord can be demonstrated early in the first trimester. Most of the adverse pregnancy and perinatal outcomes are related to abnormal Umbilical Cord coiling Index (UCI). A 23...
June 2019
African Journal of Cellular Pathology
Temporal bone histopathology study on cochlear otosclerosis: A memoir for the cochlear
implant surgeon
The aim of this study was to describe the pathologic changes in temporal bones with cochlear otosclerosis that may have implications for cochlear implantation. Fifteen human temporal bones with otosclerosis were used for this study. In each temporal bone was studied: (1) medial wall of the middle ear and in particular the horizontal segment of the facial nerve canal; (2) the round window niche and the corresponding part...
June 2019
International Journal of Educational Administration and Policy Studies
Developing necessary leadership characteristics indicators of Secondary Basic School Administrators
in Thailand
This research aimed to develop the necessary leadership characteristics indicators of the secondary basic school administrators in Thailand. The samples were grouped into four including: (1) 10 specialists in the secondary educational administration, (2) 10 secondary school administrators of the educational quality assessment and its result with the best level, (3) 120 participants in the exploratory group and (4) 986...
June 2019
Journal of Stored Products and Postharvest Research
Determination of appropriate packaging materials for cowpea seed storage
Quality seed is an important resource for any seed-propagated crop. Cowpea (Vigna unguiculata) seed is prone to cowpea weevil (Callosobruchus maculatus) infestation during storage. This can result in 100% seed loss when stored without treatment. Smallholder farmers in Kenya use traditional methods of storage and occasionally accompanied by pesticides treatment. Due to health concerns, pesticide use is discouraged....
June 2019
African Journal of Food Science
Welfare effects of transportation cost and food price volatility in the context of globalization in Nigeria
Globalization has enhanced the development of the transport sector and more importantly, the distribution of agricultural produce and food globally. However, not much is known about how this has impacted the welfare of the poor in Nigeria. Therefore, the study probed the persistence and asymmetry in food and transport price volatility; creating a dummy with the period before and after the adventure of significantly...
Page 8 of 1169, showing 50 records out of 58450 total, starting on record 351, ending on 400
