Browsing Open Access Journals by Title
Now showing items 693-712 of 831
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The role of varietal attributes on adoption of improved seed varieties: the case of sorghum in Kenya
(BioMed Central, 2014)This paper examined the effect of variety attributes on adoption of improved sorghum varieties in Kenya. Using data from a random sample of 140 farmers, a multivariate probit was used to identify variety-specific drivers of ... -
Root Reconstruction with Total Replacement of Ascending Aorta Using Hypothermic Circulatory Arrest and Selective Cerebral Perfusion for Moderately Dilated Distal Ascending Aorta
(Scientific Research, 2013-07)Objective: We have occasionally encountered a moderately dilated distal ascending aorta while reconstructing an aortic root. We describe reconstruction of an extended root and ascending aorta using our current strategy. ... -
Salt stress induced effects on biochemical parameters in etiolated maize leaf segments during greening
(African Journal of Biological Sciences, 2019-07-08)Treatment of etiolated maize leaf segments with 0-300 mM NaCl during greening decreased the osmotic potential of leaf sap significantly. Na+ content of the leaf tissue increased significantly on supplying different ... -
Sampling and Reconstruction of Zero-Order Hold Signals by Parallel RC Filters
(Scientific Research Publishing, 2011)In this work we describe a reconstruction algorithm for zero-order hold (ZOH) waveforms measured by a parallel sam-pling scheme. In the method the ZOH signal is fed to a parallel network consisting of resistor-capacitor ... -
Savings-Growth Nexus in Ghana: Cointegration and Causal Relationship Analyses
(Scientific Research, 2017-02)The wide range of controversies surrounding the direction of causality between savings and economic growth necessitated this study. The study was intended to investigate the relationship between gross domestic savings ... -
A Self-Learning Diagnosis Algorithm Based on Data Clustering
(Scientific Research Publishing, 2016-08)The article describes an approach to building a self-learning diagnostic algorithm. The self-learning algorithm creates models of the object under consideration. The models are formed periodically through a certain time ... -
A Self-Optimization of the Dynamic Resource Management Based on the Cognitive Radio
(Scientific Research Publishing, 2011-04)This paper describes a novel self-optimized approach for resource management based on the cognitive radio in the cellular networks. The cognitive radio techniques offer several features like autonomy, sensing and negotiation. ... -
A Self-Similar Fractal Cantor Antenna for MICS Band Wireless Applications
(Scientific Research Publishing, 2011-04)Low profile antenna in communication is a new methodology. Fractal geometry is a methodology through which size reduction is achieved. A Self-similar fractal antenna using multicantor technique is proposed and experimentally ... -
Sensitivity of Colletotrichum gloeosporioides Isolates from Diseased Avocado Fruits to Selected Fungicides in Kenya
(Hindawi, 2018)Colletotrichumgloeosporioides is a serious postharvest pathogen of avocado fruits worldwide. Kenya lacks any registered fungicides for the management of the disease. Nevertheless, farmers commonly use commercially available ... -
Sensor Placement to Improve the Positioning Performance Based on Angle of Arrival (AOA)
(Scientific Research Publishing, 2010-07)In this paper, a method for sensor placement to improve the placement quality based on angle of arrival of signal in a specific area is proposed. The installation place of sensors may be constrained with specified boundaries. ... -
The Serendipity Theorem for an Endogenous Open Economy Growth Model
(Scientific Research, 2018-04)A Samuelsonian serendipity theorem for an endogenous growth model is derived. The formula for optimal population growth rate deviates from those of the model with exogenous population growth rates in a third best ... -
Serum protein status and electrolyte profile of HIV/AIDS patients on HAART in UPTH, Rivers state – Nigeria
(African Science Publications, 2020-07-09)Despite successes achieved due to the wide availability and improvement of combination antiretroviral therapy regiments, there are still serious complications common in Human Immunodeficiency Virus (HIV) patients on (highly ... -
Shadow prices of greenhouse gas emissions: An application to the Czech dairy production
(2018)The paper presents an analysis of the shadow prices of the greenhouse gas emissions in the Czech dairy production industry. There is employed the stochastic frontier multiple output distance function with two market outputs ... -
Short-Run and Long-Run Co-Movements in the Income-Consumption Relationship
(Scientific Research, 2018-04)The study uses the cointegration and common cycle analysis to test whether there are short-run and long-run co-movement relationships between incomes and varies consumption expenditure variables. The analysis aims ... -
Sigma-Point Filters in Robotic Applications
(Scientific Research Publishing, 2015-08)Sigma-Point Kalman Filters (SPKFs) are popular estimation techniques for high nonlinear system applications. The benefits of using SPKFs include (but not limited to) the following: the easiness of linearizing the nonlinear ... -
A silkworm hemolymph protein is a prophenoloxidase activation blocker
(Scientific Research Publishing, 2012-10)Melanization in insect hemolymph is triggered by the recognition of pathogen-associated molecular patterns via pattern recognition receptors. The signal transduction leads to the activation of the prophenoloxidase and hence ... -
A simple and efficient seed-based approach to induce callus production from B73 maize genotype
(Scientific Research Publishing, 2012-10)The wild type maize genotype, B73, is not amenable for callus production and an efficient protocol for B73 maize callus induction has never been reported up-to-date. Scientific efforts in producing B73 maize callus using ... -
A Simplified Nonlinear Generalized Maxwell Model for Predicting the Time Dependent Behavior of Viscoelastic Materials
(2011-06)In this paper, a simple nonlinear Maxwell model consisting of a nonlinear spring connected in series with a nonlinear dashpot obeying a power-law with constant material parameters, for representing successfully ... -
Simplified Step-by-Step Nonlinear Static Program Investigating Equilibrium Conditions of Electrons in Atom and Ionization Energies: Case Study on Argon
(Scientific Research, 2018-05)For investigation of equilibrium conditions of electrons in an atom, and Ionization Energies of Elements, a simplified deterministic static model is proposed. The electrons are initially uniformly and sparsely arranged ... -
Simplifying differential equations concerning degenerate Bernoulli and Euler numbers
(Elsevier, 2018-04)In the paper, the authors significantly and meaningfully simplify two families of nonlinear ordinary differential equations in terms of the Stirling numbers of the first and second kinds.