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Bolgatanga, Ghana

The Bolgatanga Polytechnic is a public tertiary institution in the Upper East Region of Ghana. Wikipedia.

Afoakwah A.N.,Bolgatanga Polytechnic | Owusu W.B.,University of Ghana
Asian Journal of Clinical Nutrition | Year: 2011

Unhealthy lifestyle and eating habits have been associated with the increasing prevalence of diet-related non-communicable diseases such as cardiovascular disorders and hypertension. The study was a cross-sectional involving 320 underground male miners in the Obuasi municipality. The research was conducted to generate data on the associations between characteristics of underground miners, their nutrition and blood pressure. Cluster and simple random sampling techniques were used to select the respondents from their residential areas. Independent sample t-test and Spearman's correlation (2 tailed) were used to test the significance of associations between selected continuous variables, while Chi-square test was used to test for significance between categorical variables. Logistic regression was used to determine the extent to which significant variables predicted high blood pressure. Results indicated that apart from vehicle ownership (p = 0.02) and length of working underground (p<0.001). All other socio-economic variables did not indicate any significant association with blood pressure. About 41.6% of the respondents were hypertensive. The prevalence of obesity and overweight cases combined were 62.1%. Potassium intake correlated significantly and positively with systolic (r = 0.11, p = 0.04) and diastolic blood pressure (r = 0.13, p = 0.02). The risk of developing hypertension increased with age, with persons within the age categories of 30-39 years, 40-49 years and 50-59 years had odds ratios of 2.55 (95% CI: 1.12-5.81), 3.34 (95% CI: 1.45-7.68) and 7.56 (95% CI: 2.91-19.84), respectively. Nutrient intake and blood pressure monitoring must be part of the day-to-day programmes of the underground male miners. © 2011 Asian Network for Scientific Information.

Boamah P.O.,Bolgatanga Polytechnic | Sam-Amoah L.K.,University Of Cape Coast | Owusu-Sekyere J.D.,University Of Cape Coast
Asian Journal of Agricultural Research | Year: 2010

This research was conducted to determine the performance of two sprinkler heads and to use one of them to determine suitable irrigation interval for the optimum growth and yield of tomatoes. Technical evaluation of sprinkler system performance was done using the sprinkler heads, i.e., LEGO and AGROS and Parameters measured and their values for them were, respectively: Coefficient of Uniformity (CU), 98.05±0.21 and 99.20±0.13, Distribution Uniformity (DU) 17.00±3.00 and 57.67±5.51, Scheduling Coefficient (SC), 6.00±l .00 and 1.87±0.23, precipitation rate, 7.87±0.38 and 8.00±0.00, operating pressure, 0.18±0.25 and 0.18±0.01, Radius of throw, 0.53±0.06 and 0.53±0.06, Deep Percolation Ratio (DPR), 0.46±0.01 and 0.61±0.18, Depth of water, 5.69±01.0 and 5.93±0.18. AGROS performed better than LEGO in most parameters determined. Four irrigation intervals; one day (T1), 3 days (T2), 5 days (3) and 7 days (T4) were used. Tomato plants under T1 had a significantly higher stem diameter (2.85), fruit mass (45.00), fruit length (5.3), flower number (2.781), than those under the other treatments. Irrigation intervals of a day (T1) lead to the best growth and development of tomatoes. © 2010 Knowledgia Review, Malaysia.

Dukuh I.G.,Bolgatanga Polytechnic
Asian Journal of Agricultural Research | Year: 2011

Sweet potato (Ipomoea batatas L.) is the seventh most important food crop. In the tropics it is a staple food in many developing countries and it also serves as animal feed and raw material for many industries. The utilization of sweet potato in many countries has declined which can partly be due to pre and post-harvest losses resulting in excessive waste which has increased prices. The study was conducted to determine the effect of time of pre-harvest defoliation of sweet potato vines on yield performance and quality of sweetpotato and tuberpotato in the Coastal savanna of Ghana. To do this the effect of defoliation and variety on the quality of tubers were studied. Two improved varieties; TIS 86-3017 and TIS 8266 and a local variety, Cape Coast, were subjected to pre-harvest defoliation period of 12, 8 and 4 days before harvesting. A fourth treatment was without defoliation and was designated 0 that is no defoliation. The experiment examined the effect of genotypes and defoliation on tuber quality. The experiment revealed that the improved varieties were no better than the local variety in their yields, resistance to fungal decay and extent of rodent attack. The improved varieties were more susceptible to Cylas weevil infestation in the field than the local variety. The improved varieties suffered more damaged during harvesting and sprouted more in the field than the local variety. Defoliation before harvesting reduced weevil infestation, fungal decay and bruising of tubers during harvesting and handling. However, defoliation increased sprouting of tubers from 2.5% for tubers which were not defoliated to 14.2% in tubers which were defoliated 12 days before harvesting. © 2011 Knowledgia Review, Malaysia.

Salifu T.,Bolgatanga Polytechnic | Agyare W.A.,Kwame Nkrumah University Of Science And Technology
ARPN Journal of Engineering and Applied Sciences | Year: 2012

Distinguishing land use types is mostly done through field surveys which does not easily capture the spatial changes in the land use/cover types. In this study, the Surface Energy Balance Algorithm for Land (SEBAL) model was used to estimate surface albedo and NDVI, for different land use/cover types for two sub-catchments (i.e., Atankwidi and Afram) in the Volta Basin of Ghana. The mean coefficient of variation (CV) for individual land use/cover types compared to the mean CV for a given site was then used to distinguish among the land use/cover types. It was found that these parameters derived from the SEBAL model can be used to distinguish among different land use/cover types in the two subcatchments. SEBAL estimates for surface albedo and NDVI across the different land use/cover types varied from 0.05 to 0.22 and -0.41 to 0.38, respectively. The range of CVs for surface albedo and NDVI, were 5-22% and 7-175%, respectively across the different land use/cover types for the two catchments. The results of this study demonstrate that SEBAL's derived surface albedo and NDVI can be used to distinguish land use/cover types in catchments similar to those of the study areas with few ground measurements. © 2006-2012 Asian Research Publishing Network (ARPN).

Boamah P.O.,Jiangsu University | Boamah P.O.,Bolgatanga Polytechnic | Zhang Q.,Jiangsu University | Zhang Q.,Hainan University | And 4 more authors.
Carbohydrate Polymers | Year: 2014

Adsorption capacity of cross-linked low molecular weight chitosan pyruvic acid derivatives CSnPA-GLA (n = 8, 11) were examined by employing 23 factorial design method. Three (3) factors and two (2) levels of adsorbent dose (A) (0.05 and 0.1 g), adsorbent type (B) (CS8PA-GLA and CS11PA-GLA) and concentration of lead solution (C) (1 and 3 mg/L) were considered. From the statistical analysis, all the main parameters (A, B and C) and some interactions of the main parameters (AC and ABC) had influence on the adsorption process at 5% significance level. The adsorption process was greatly influenced by the adsorbent type (B). The adsorption equilibrium results correlated well with the Freundlich isotherm model. The adsorption kinetic data also correlated well with the pseudo second order. The thermodynamic studies also revealed that the nature of lead adsorption was spontaneous and endothermic. The findings suggest that CS8PA-GLA is better than CS11PA-GLA for lead sorption. © 2014 Published by Elsevier Ltd.

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