Field study of the repellent activity of ‘Lem-ocimum’-treated double bags against the insect pests of stored sorghum, Tribolium castaneum and Rhyzopertha dominica, in northern Nigeria

A field study of the efficacy of a novel use of repellent plant material to protect stored sorghum from pest damage was conducted in Kebbi State, Nigeria. A combination of Ocimum basilicum (Sweet basil) and Cymbopogon nardus (Lemongrass) powdered dried leaves (‘Lem-ocimum’) was found to be significantly more repellent to the most common grain pest, Tribolium castaneum, when applied as a water-based paste between the layers of double storage-bags at a dose of 1% w/w (plant powder/grain) than untreated double bags (n = 30, P < 0.001). The efficacy of protecting a given percentage of grain in Lem-ocimum treated double-bags was tested in 120 store-rooms, each of which contained 15–35 × 60 kg single bags of sorghum that initially had moderate levels of beetle infestation (26–50 T. castaneum/bag). After 5 months in storage, the percent change in grain weight and levels of infestation by the two most prevalent pests, T. castaneum and Rhyzopertha dominica, inside treated double-bags were significantly lowest in the store-rooms with the highest percentage of all grain (4%) kept in treated double-bags (P < 0.01, n = 120 store-rooms). This result may have been due to the mass fumigation effect of adding 400–900 g Lem-ocimum to each of the store-rooms with 4% treated grain. Only the participant farmers that had stored 4% of their grain in treated double-bags felt the treatment provided significant protection. The findings suggest Lem-ocimum treated double-bags could improve the chances that a proportion of a farmer's grain would be of good enough quality to sell in the market mid-way through the storage season, when the price of grain would earn a good profit

Digital habits and use of the internet as source of sexual and reproductive health information among undergraduates in northern Nigeria

Background: Surfing the internet and networking via social media have evolved at a startling pace. Objectives: To determine internet and social media habits and identify predictors of their use as sexual and reproductive health resource among Bayero University students. Study Design: A cross section of 385 students was interviewed using pre-tested anonymous structured self-completed questionnaires. Results: Nearly all students 98.4% (n=377) had accessed the internet and most 96.3% (n=363) had visited social media sites. Face book 57.3% (n=208), Twitter 22.3% (n=81) and Blackberry Messenger 8.8% (n=32) were the most popular among students. Of those with internet access,51.2%,46.2%, 39.2% and 38.5% mainly searched for information on HIV/AIDS, STI, sexual activities and menstrual problems respectively. There was more than two-fold likelihood of accessing online sexual information among female students compared to males, adjusted Odds ratio (aOR=2.52); 95% Confidence Interval (95%CI= 2.41-4.86). Similarly, ever-married students had more than twice the chance relative to single students (aOR=2.2, 95%CI=1.17-4.28). Furthermore, younger students (<20 years) were twice more likely to have used online resources compared to their older colleagues (≥30 years) (aOR=2.12, 95%CI=1.32-4.17). Conclusion: Undergraduate students are increasingly turning to the internet for sexual and reproductive health information. This presents an opportunity for programming.Key words: Internet, Social media, Reproductive, Sexual health, information source

Disseminated Cutaneous Leishmaniasis in HIV positive patient - A Case Report

Disseminated cutaneous leishmaniasis and HIV dual-infection is seldom reported. Leishmaniasis and HIV co-infection may intensify the immunedefect and is the chief reason for atypical presentation and widespread progression of cutaneous leishmaniasis and its defiance to conventional therapy. Here we report a 38-yearold HIV-positive ladywhopresented with a 6-month history of a progressive papule and nodular eruptions of leishmaniasis on face, trunk and extremities that was recalcitrant to treatment.Keywords: Co-infection, Diffuse cutaneous leishmaniasis, HIV infection

Evaluation of Hot Mix Asphalt Properties with Solid Waste Incinerator Ash as Fine Aggregate

It is imperative to develop a means of utilizing municipal solid waste incinerator ash (MSWIA) for a proper environmental protection. Hence, this research is to evaluate the influence of municipal solid waste incinerator ash (MSWIA) as a substitute for fine aggregate in hot-mix asphalt concrete. The physical properties and chemical oxide composition tests were carried on MSWI ash with the view of evaluating its suitability for used as fine aggregate. Marshall mix design method was adopted for sample preparation. Preliminary samples were prepared to determine the optimum bitumen content (OBC). The OBC was determined as 5.5% and was used for the preparation of samples with varying proportion of MSWIA (10%, 20%, 30% and 40 by total weight of the fine aggregate). The samples were subjected to mechanical and volumetric evaluations, which include stability, flow, bulk specific gravity, void in mineral Aggregate (VMA) void filled with bitumen (VFB) and Voids in the mix (VIM). The results revealed that the flow, void in mix (VIM), void in mineral aggregate (VMA) increased, while bulk specific density (BSD) and void filled with bitumen (VFB) became less as the percentage of MSWI ash raised. However, the use MSWI ash in the preparation of hot mix asphalt as a substitute for fine aggregate should not be beyond 20 % MSWIA. Moreover, the results fulfilled the Standard Specification and requirements specified by Nigerian Standard Specification for Roads and Bridges

Effects of Rainfall Variability on Cassava Yield in Owerri North Local Government Area of Imo State, Nigeria

Agriculture in Nigeria is the main source of food and major employer of labour with about 60% of the Nigerian population engaged in Agriculture. It is predominantly ran-fed and hence vulnerable to climate change. This study assessed the effects of rainfall and temperature variation on cassava in Owerri North Local Government Area of Imo State, Nigeria. Data for the study were collected from the Imo State Agricultural Development Programme for the period of 22years (1995-2017). The data were analyzed statistically and the results revealed that there was minimal variation in rainfall and temperature characteristics, which translates into proportional variability in cassava yield in Owerri North Local Government Area, during the period of study. The study also revealed poor yield with non-significant positive effect of rainfall, maximum and minimum temperature in cassava yield. With reference to the study outcome, it was recommended that weather information should be disseminated to crop farmers to equip them with proper timing, adaptation and mitigation strategies for agricultural practice in the region. This would reduce the adverse effects of climate variability on crop production. Also, it was recommended that since rainfall and temperature do not account for one hundred percent of the determinants of crop yield, other factors such as soil fertility and farm management practices should be explored in order to ensure maximum yield of crops in Owerri, Imo State of Nigeria. Keywords: Effect, Rainfall, Variability, Cassava yield DOI: 10.7176/JEES/9-3-12 Publication date:March 31st 201

Effects of Rainfall and Temperature Variability on Yam Production in Lafia Local Government Area, Nasarawa State, Nigeria

The study assesses the effects of rainfall and temperature variability on yam production in lafia Local Government Area of Nasarawa State, Nigeria. The research data were collected from secondary data from the existed literatures such as textbooks, journals, articles, seminar papers, encyclopedia which are most pertinent to this study. The rainfall and temperature data of the fourteen years (2001-2014) were collected from synoptic weather station of NIMET archives Lafia sub station where rain gauge and thermometer are used. The Statistics Package for Social Science (SPSS) software was used for the analysis. The derivatives of these data were computed and used for further analysis such as average of number of rainy and temperature variations of months of years under study. The yam data was collected in metric tons as unit of measurement per year for the fourteen years under study which shows that there is an upward increase trend in yam production in the area of study over the time span in gradual and steady state which has a variation in production, across the years under consideration of 0.843%. It is also indicated the effect of 0.186 (19%) of the variation in yam production was explained by the variation in rainfall, maximum and minimum temperature between the study periods. It’s further stated that the magnitude of effect by the predictors (rainfall, minimum and maximum temperature) on the dependent variable (yam) varies. Rainfall had a non-significant (P-value > 0.05) effect of -0.269 and a coefficient value of -0.438. This by extension implies that for every unit (mm) decrease in rainfall over the period of time under investigation, yam production decreases by -0.438mt. The relationship between rainfall, temperature and yam using Pearson correlation shows that a weak negative relationship (-0.041) between rainfall and yam yield, a weak positive relationship (0.160) between maximum temperature and yam yield and there is a weak positive relationship (0.322) between minimum temperature and yam yield. The study identified increased production with non-significant positive effect of rainfall, maximum and minimum temperature on yam production. Since the study focused on the effects of rainfall and temperature variability on yam production in Lafia Local Government Area of Nasarawa state, without taking into consideration of other parameters like land use patterns and since rainfall and temperature are not the only parameters that affects yam production. the following recommendations are made: Agricultural Extension Officers (AEOs) should be deployed to guide farmers through routine visits, regular access to weather information to farmers by NIMET, application of irrigation  for growing of crops,  study of land use pattern should be considered and there is need for modern farm inputs and price control by government and Non Governmental organization. Keywords: Effects, Rainfall, Temperature, Variability, Yam Production DOI: 10.7176/JEES/9-3-13 Publication date:March 31st 201

Assessment of the Effects of Flood on Agricultural Land Use in Doma Local Government Area, Nasarawa State, Nigeria

This study aimed at assessing the effects of flood on agricultural land use in Doma Local Government Area, Nasarawa state, Nigeria. In order to achieve the objectives of the study, information on the causes effects frequency and magnitude of flood on agricultural land use were needed from primary and secondary source of data. The primary data were obtained through the use of structured questionnaire, field observation and measurement and ten years rainfall data (2004-2014). The rainfall data were obtained from Nigeria meteorological agency (NIMET), Lafia, Nasarawa state. Rainfall data obtained were used for rainfall trend analysis for the study. The secondary data include information from relevant text such as journals, newspaper dictionary, encyclopaedia textbooks, internet and web and related past students dissertation and thesis. Basic statistical techniques such as the computation of totals, mean, and standard deviation were employed for the analysis of rainfall data. Descriptive statistics were adopted to analyze the result from the questionnaire and simply linear regression analysis were used to determined rainfall trend for this work. The study shows that there has an appreciable effect of flood in the    study area which is due to many factors such as human activities but is greatly influenced by climate. This evident in the study as about 44.1% and 21.8% of the total respondents have been engaged in farming for 21 years and above, and 16 to 20 years respectively and are thereby able to explain clearly the effects they home observed experienced over time. The finding also revealed that 1.76% of the respondents have lost a total 15 hectares of farm land, 30.59% have 416 hectare 23.53 have lost 480 hectares, 14.71% lost 500 histories and 7.06% 600 hectares respective. This indicates a great destruction farm lands in the area and invariably a decrease in food production. The state disaster management and other agencies charges with disaster management in the state level should be properly funded in order to respond to the challenges of sudden of occurrences of natural disaster in future. Keywords: Effect, Floods, Agriculture, Landuse, Devastation DOI: 10.7176/JEES/9-3-08 Publication date:March 31st 201

The Relationship between Reward and Transfer of Training among Employees

Transfer of training is important to an organization. This is because organization has devoted lot of money for sending their employees for training in order to increase the employees’ knowledge, skills and abilities. From the training they attended, it is essential for the employees to apply the learned knowledge into the workplace. The purpose of this study is to examine reward on influence the transfer of training at Farmers’ Organization Authority Headquarters, Kuala Lumpur. A cross-sectional study was chosen for this research. Data was gathered through questionnaire survey of employees (n=252). Quantitative methodology has been chosen for this study because it is to examine the relationships among reward on the transfer of training among employees in Farmers’ Organization Authority Headquarters, Kuala Lumpur. Self-administered questionnaires were adapted from various sources and consist of variables related to transfer of training, and peer relationships used in data collection. Data gathered were analysed using Statistical Packages for Social Sciences, version 22.0 (SPSS). The results showed that rewards had significant relationship with transfer of training.

Development of an Optimal Coordination Scheme For Dual Relay Setting In Distribution Network Using Smell Agent Optimization Algorithm

This research work is aimed at developing an optimal coordination scheme for dual relay settings in distribution system. The fault current through a relay in forward direction is usually higher than that in the reverse direction for distribution system. Therefore, it is preferable to have a dual setting directional over-current relay. These relays have the capability to operate in both directions (forward and reverse direction) of fault current with two independent relay settings. Additional fault current contribution to the fault location is present due to the integration of distributed generation to the system. The coordination problem is therefore formulated as a nonlinear optimization problem to help mitigate the operating times of the relays using smell agent optimization (SAO) technique. The developed model was applied on IEEE 14-bus network equipped with synchronous distributed generation. The protection setting comprises of two time dial settings (TDS) and a pick up current setting for each relay. The SAO was used to obtain the TDS with the sole purpose of minimizing it while ensuring that the constraints set were satisfied. In the case of TDS with three cases of faults considered. the results obtained showed that the maximum fault current in all the three cases represent 6.79% while the minimum fault current was reduced to 2.70% when compared with the base case. The developed technique thereby achieved a reduction of time dial settings for which the relay operation of 14.50% and 13.69% reduction for the adopted 14 bus IEEE network

Evaluation of Environmental Effect of Shiroro Hydropower Dam on the Downstream Communities of Shiroro Local Government Area, Niger State, Nigeria

This study evaluates the environmental effect of Shiroro hydropower dam on the downstream communities. The main objective of this study is to investigate the environmental effects of Shiroro hydropower dam on the downstream communities. A suitable conceptual framework was formulated and obtained data on the environmental impacts of dam on downstream communities, followed by a comprehensive literature review for viable information on the study. Three communities were used as case studies and quantitative method was  used as an appropriate research paradigm such as structured questionnaire survey (with predominantly quantitative questions) and  relevant data was obtained from the study area. Subsequently the data was analysed using descriptive, factor analysis and Kruskal-Wallis test as well construct reliability and validity analysis. From a broad range of environmental impacts, core environmental impacts were determined. The core impacts include changes in riparian vegetation, changes in river water quality, changes to channel shape and changes in floodplains among others. Similarly, control techniques were identified to lessen the effect of the impact and the result revealed that watershed management, water pollution control, management of water releases, fishing regulation, fish hatcheries and fish passage facilities were the core control techniques. The result of Kruskal-Wallis test revealed that majority of the environmental impacts affecting the communities under study is significantly and statistically different while the Cronbach alpha for internal consistencies of the constructs of the questionnaire was 0.745, hence high enough for generalising the result. Keywords: Environment, Effects, Hydroelectric, Dam, Downstream DOI: 10.7176/JEES/9-3-11 Publication date:March 31st 201