Economic Analysis of Irrigated Irish Potato Production in Plateau State
The study examined the economics of irrigated Irish potato production in Plateau State. A multistage sampling technique using purposive and systematic random sampling was used to obtain data from a sample size of 120 respondents using structured questionnaires. Data were analyzed using Descriptive Statistics, Gross Margin Analysis, Benefit –Cost Analysis and Sensitivity Analysis. Results reveals that majority of the farmers were educated (64.17%) adults (58.33%) with long years (97%) of experience in Irish potato irrigation farming, and owned an average of 0.7 hectares of irrigated farm land each. Cost and Return analysis revealed that costs of seeds, labor and chemical fertilizers made up the highest (89.40%) portion of the average total variable cost of production. Results also revealed that irrigated Irish potato production in Plateau State is a profitably lucrative enterprise with a robust economic viability as shown by values  of Gross Margin ( N 655,637.88), benefit–Cost Ratio (2.64) and Sensitivity Analysis ratio (2.16). The study recommends expansion in irrigated Irish potato farm lands in addition to adoption of technologies that will minimize cost of seeds, labor and chemical fertilizers. Keywords: Gross Margin, Benefit, Cost, Sensitivity, Profitability.
The Effect of Shared Meaning between Extension Officers and Farmers on the Adoption of Irish Potato Farming Innovations in Meru County, Kenya
................................................................................................................................. iv TABLE OF CONTENTS ............................................................................................................. vi LIST OF TABLES ....................................................................................................................... xi LIST OF FIGURES .................................................................................................................... xii LIST OF APPENDICES ........................................................................................................... xiii ABREVIATIONS AND ACRONYMS ..................................................................................... xiv DEFINITION OF TERMS ........................................................................................................ xvi CHAPTER ONE ...................................................................................................................... xvii
Rational Design, Synthesis and Evaluation of γ-CD-Containing Cross-Linked Polyvinyl Alcohol Hydrogel as a Prednisone Delivery Platform
This study describes the in-silico rational design, synthesis and evaluation of cross-linked polyvinyl alcohol hydrogels containing γ-cyclodextrin (γ-CDHSAs) as platforms for the sustained release of prednisone (PDN). Through in-silico studies using semi-empirical quantum mechanical calculations, the effectiveness of 20 dicarboxylic acids to generate a specific cross-linked hydrogel capable of supporting different amounts of γ-cyclodextrin (γ-CD) was evaluated. According to the interaction energies calculated with the in-silico studies, the hydrogel made from PVA cross-linked with succinic acids (SA) was shown to be the best candidate for containing γ-CD. Later, molecular dynamics simulation studies were performed in order to evaluate the intermolecular interactions between PDN and three cross-linked hydrogel formulations with different proportions of γ-CD (2.44%, 4.76% and 9.1%). These three cross-linked hydrogels were synthesized and characterized. The loading and the subsequent release of PDN from the hydrogels were investigated. The in-silico and experimental results showed that the interaction between PDN and γ-CDHSA was mainly produced with the γ-CDs linked to the hydrogels. Thus, the unique structures and properties of γ-CDHSA demonstrated an interesting multiphasic profile that could be utilized as a promising drug carrier for controlled, sustained and localized release of PDN.