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Search Results: 1 - 10 of 462196 matches for " Kelvin A. Moses "
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Tubulocystic Carcinoma of the Kidney: A Case Report of Natural History and Long-Term Follow-Up
Kelvin A. Moses,John J. DeCaro,Adeboye O. Osunkoya,Muta M. Issa
The Scientific World Journal , 2010, DOI: 10.1100/tsw.2010.56
Case Report: Osteochondral Fragment—A Rare Cause of Locked Metacarpophalangeal Joint  [PDF]
Kelvin Ramsey, S. Overstall, A. Fleming
Surgical Science (SS) , 2011, DOI: 10.4236/ss.2011.26076
Abstract: We describe the presentation of a patient with sudden, sharp pain associated with a snapping sensation, swelling and pain over the metacarpophalangeal joint (MCPJ) with no history of direct trauma. The finger was held in 30 degrees of flexion and significantly deviated to the ulnar side with loss of extension. A diagnosis of traumatic rupture of the radial sagittal band of the extensor mechanism was made but the cause at exploration was found to be impingement of an osteochondral fracture fragment. This is a rare cause of irreducible loose body ‘locking’ of the metacarpophalangeal joint.
Prospective Bioactive Compounds from Vernonia amygdalina, Lippia javanica, Dysphania ambrosioides and Tithonia diversifolia in Controlling Legume Insect Pests  [PDF]
Regina W. Mwanauta, Kelvin A. Mtei, Patrick A. Ndakidemi
Agricultural Sciences (AS) , 2014, DOI: 10.4236/as.2014.512123
Abstract: Synthetic insecticides are widely known to control insect pest, but due to high operational cost, environmental pollution, toxicity to humans, harmful effect on non-target organisms and the development of insect resistance to this products, have created the need for developing alternative such as those involving the use of botanical pesticides to control insect pest. Bioactive compounds derived from plant could be an alternative source for insect pest control because they constitute a rich source of natural chemicals. This review aims to explore the potential of plant bioactive compounds from Vernonia amygdalina, Lippia javanica, Dysphania ambrosioides and Tithonia diversifolia as a low-cost, safe and environmentally friendly means of controlling insect pests in legumes.
What Has Changed? Parents and Community Members’ Perceptions on an Education Intervention for Girls in the Slums of Nairobi  [PDF]
Benta A. Abuya, Moses Ngware, Milka Nyariro
Open Journal of Social Sciences (JSS) , 2015, DOI: 10.4236/jss.2015.39029
Abstract: The objective of the paper is to examine reflections of parents and community members with a community based intervention for girls aged 12 - 19 years in the slums of Nairobi. The intervention involved mentoring in life skills and after school support for girls; and, parental counselling on supporting girls’ education. This paper is motivated by the need to identify from the perspective of parents and community members, what has changed in regard to the education and social lives of the girls, both at school and within the households as a result of one-year exposure to an intervention. Data were collected using in-depth interviews and focus group discussions (FGDs) during the qualitative midterm survey conducted in Korogocho and Viwandani slums, in Nairobi, Kenya. Results show that parents and community gatekeepers’ generally have a positive experience with the outcome of the intervention one year after the onset of the intervention. In conclusion, the knowledge gained by the beneficiaries is gradually leading to an empowerment process within the urban informal settlements, as both girls and their parents become advocates of the program.
Extrapolations on the Use of Rhizobium Inoculants Supplemented with Phosphorus (P) and Potassium (K) on Growth and Nutrition of Legumes  [PDF]
George W. Mmbaga, Kelvin M. Mtei, Patrick A. Ndakidemi
Agricultural Sciences (AS) , 2014, DOI: 10.4236/as.2014.512130
Abstract: Land scarcity and poor farming management practices has resulted in to intensive agriculture which rendered most of the soil in sub Saharan Africa depleted in essential plant nutrients. High prices of chemical fertilizer are crucial bottleneck toward increasing production of legumes and other food crops in most countries found in sub-Saharan Africa. Nitrogen, phosphorus and potas-sium are among the most limiting nutrients for plant growth as they play different but crucial roles in the plant physiological processes. These macronutrients are fundamental components of cell building blocks including genes and chromosomes. This review intend to show the vital roles played by rhizobial inoculants supplemented with phosphorus and potassium in enhancing growth, yield, photosynthesis, nodulation, nutrient uptake and nitrogen fixation of legumes.
Isolation and Characterization of Nitrogen Fixing Rhizobia from Cultivated and Uncultivated Soils of Northern Tanzania  [PDF]
Zephania Simon, Kelvin Mtei, Amare Gessesse, Patrick A. Ndakidemi
American Journal of Plant Sciences (AJPS) , 2014, DOI: 10.4236/ajps.2014.526423
Abstract: Soil bacteria1 called rhizobia are gram-negative capable to colonize the soil immediately surrounding roots under the influence of the plant “rhizosphere” and reduce atmospheric nitrogen into the form available to plants through nitrogen fixation process. Nitrogen is the most limiting and supplied nutrient to most plants, and the determinant of plant growth. Legumes differ with most plants because they have access to nitrogen from both mineral and symbiotic sources. Small-scale farmers who are the major legume producers in Africa rarely apply fertilizers during legume production. Hence, the crop is largely dependent on fixed nitrogen from native nitrogen fixers. Isolation of rhizobia for legume production has been given a little attention in Africa due to inadequate research or negligence of researchers and unawareness of its potential in legume production as well as lack of an intention from skilled personnel to popularize the technology. Evaluation of effectiveness of isolated rhizobia is essential for inoculants preparation, host specificity recommendation and symbiotic effectiveness. The isolation, determination of their population in the soil and assessing factors affecting their population and testing the effectiveness of native nitrogen fixers with respect to right trap host crop are given a special attention in this review.
Potential of Controlling Common Bean Insect Pests (Bean Stem Maggot (Ophiomyia phaseoli), Ootheca (Ootheca bennigseni) and Aphids (Aphis fabae)) Using Agronomic, Biological and Botanical Practices in Field  [PDF]
Regina W. Mwanauta, Kelvin M. Mtei, Patrick A. Ndakidemi
Agricultural Sciences (AS) , 2015, DOI: 10.4236/as.2015.65048
Abstract: Common bean production in Africa suffers from different constrains. The main damage is caused by insect pest infestations in the field. The most common insects pests which attack common bean in the field are the bean stem maggot (Ophiomyia phaseoli), ootheca (Ootheca bennigseni) and aphids (Aphis fabae). Currently, few farmers in Africa are using commercial pesticides for the control of these insect pests. Due to the negative side effects of commercial pesticides to human health and the environment, there is a need for developing and recommending alternative methods such as those involving agronomic and botanical/biological measures in controlling common bean insect pests. This review aim to report the most common insects pests which attack common bean (Phaseolus vulgaris L.) in the field and explore the potential of agronomic, biological and botanical methods as a low-cost, safe and environmentally friendly means of controlling insect pests in legumes.
Yield and Fiscal Benefits of Rhizobium Inoculation Supplemented with Phosphorus (P) and Potassium (K) in Climbing Beans (Phaseolus vulgaris L.) Grown in Northern Tanzania  [PDF]
George W. Mmbaga, Kelvin M. Mtei, Patrick A. Ndakidemi
Agricultural Sciences (AS) , 2015, DOI: 10.4236/as.2015.68076
Abstract: Both field and green house experiments were intended to investigate and evaluate the outcome of rhizobial inoculation supplemented with P and K on climbing beans production in northern Tanzania. The results obtained indicated that, inoculation using Rhizobium inoculants supplemented with fertilizers significantly (p ≤ 0.001) improved both vegetative and yield parameters of climbing beans varieties compared with control treatment. The economic analysis in rhizobium alone revealed a profit of US$ 2350 compared with control treatment with US$ 1558 profit, which was finally reflected in higher percentage increase over control and higher marginal rate of return (MRR). Thus, the use of Rhizobium inoculants supplemented with P and K increased climbing beans yield and the economic analysis performed based on total revenue and variable costs reflected an improvement in economic well being of a small hold farmer of northern Tanzania.
A third order Euler method for numerical solution of ordinary differential equations
Moses A. Akanbi
Journal of Engineering and Applied Sciences , 2010,
Abstract: There has been a great deal of interest to improve on Euler methods for solving Initial value Problems (IVPs) in Ordinary Differential Equations, because of its easy implementation and low computational cost. In this work, we continue in the spirit of Euler, to develop a new third order Euler Method. The new scheme was implemented on some standard IVPs. Our computational results show that the method is consistent, accurate and convergent of order 3. Succinct overviews of its basic properties necessary for the selection of a good numerical method in the development of program codes are also presented.
Communities in Affiliation Networks with Attitudunal Actors
Moses A. Boudourides
Computer Science , 2012,
Abstract: Our aim here is to plead for the significance of cultural considerations of overlapping inter-attitudinal patterns right next to well established structural considerations of interorganizational networks based on overlapping membership patterns. In particular, we examine how the analytical sociological methodological incorporation of cultural attributes or attitudes might enhance our understanding of structural community categorizations in interorganizational networks. For this purpose, we analyze data of the International Peace Protest Survey (IPPS) on the world-wide peace protests of February, 15, 2003, in order to manifest the added value offered by the consideration of the culture-structure duality in participation studies.
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