Testicular and Epididymal Characteristcs of Rabbit Bucks Fed Diets Containing Cottonseed Cake Supplemented with Carrot (Daucus carota) or Ginger (Zingiber officinale Roscoe)

This experiment was conducted to investigate the reproductive characteristics of rabbit bucks fed cottonseed cake-based diets supplemented with carrot or ginger. Twenty four (24) cross bred (New Zealand White X Chinchilla) 6-8 weeks old rabbit bucks were involved in the study. The bucks were balanced for weight and allocated to four dietary treatments T1, T2, T3 and T4. Treatment T1 (control) contained soyabean meal (SBM) as the main plant protein source denoted as (SBM or 0% CSC). T2 had 100% SBM replaced with cottonseed cake (CSC), while T3 and T4 had T2 supplemented with carrot and ginger respectively. Except for testicular width, testicular characteristics were not significantly (P>0.05) affected. Testicular width decreased from 2.20cm in the control (T1) to 1.63cm in T2 (100% CSC). Mean epididymal weight and mean epididymal length were significantly (P<0.05) affected with mean epididymal length decreasing from 13.72cm in the control to 8.32cm in T2 (100% CSC). Supplementing T2 with either carrot or ginger increased the epididymal characteristics significantly (P<0.05). It could be concluded from this study that CSC with or without carrot or ginger supplementation may not have adverse effect on testicular characteristics. However CSC depressed epididymal characteristics which were corrected by carrot or ginger supplementation with ginger proving more effective. Keywords: Rabbit buck, Reproductive characteristics, Cottonseed cake, Carrot and Ginger

Bus Rapid Transit and Socioeconomic Condition of Bus Commuters in Lagos State

Road transport is one of the most common means of transportation across the world. Bus transportation in Nigeria had witnessed many problems for the past decades considering the growing population with the attendant loss of lives and properties in most cities like Lagos in Nigeria. This paper focuses on the adequacy of services provided by Bus Rapid Transit (BRT) in Lagos State with respect to the extent to which it influences the socioeconomic conditions of bus commuters.  It examines the effect of services rendered by BRT on cost reduction potential, income and safety. Multistage sampling technique was used to select 20 samples each from all respondents in all local government area in Lagos State to reach a total of three hundred and thirty (330) samples. The data collection instrument was the questionnaire which was validated. Data collected were analysed with the use of descriptive statistics such as means, percentages and standard deviation and inferential statistics such as regression and analysis of variance techniques. Findings showed that BRT services has reduced the cost of bus commuters and also increased safety and security thereby increasing the socioeconomic condition of Lagosians. The study recommends improvements in BRT services through the deployment of technology as it had been used in developed countries. &nbsp

MEMETIC ALGORITHM WITH MULTI-PARENT CROSSOVER (MA-MPC) FOR MULTI-OBJECTIVE NETWORK DESIGN

In many Evolutionary Algorithms (EAs), a crossover with two parents is commonly used to produce offsprings. Interestingly, we need not restrict ourselves to two-parent crossover since EA allows us to emulate natural evolution in a more flexible fashion. There are experimental results in the literature which show that multi-parent crossover operators can achieve better performance than traditional two-parent versions. However, most of these experimental results are based on common test functions. Experimental studies involving real-life, NP-hard problems such as network design problem are very rare. This paper presents Memetic Algorithm with Multi-Parent Crossover (MA-MPC) with a view to providing a case study of multi-parent crossover within the framework of MA for network topology design problem. Results show that MA-MPC does not always outperform MA. It depends on the size of the problem and the number parents (be it 3, 5, 7, or any other

GROWTH RESPONSE OF MAIZE (ZEA MAYS L.) TO METAL TOXICITY

This study evaluated the phytotoxic effects of lead (Pb) and zinc (Zn) as Pb(NO3)2  and Zn(NO3)2 on maize  (Zea mays L) considering the  plants’ growth indices, biomass as well as soil parameters and soil microorganisms after treatment. The results showed that plant growth significantly reduced with increasing concentrations (100,150 and 200 mgkg-1) of Pb and Zn contamination. The results indicated significant inhibitory effect on the growth parameters (stem height, root length, leaf area, fresh and dry weight) measured, compared to control experiment. This study therefore revealed that the heavy metals have harmful effects on maize’s growth.  Consequently, the consumption of such contaminated cereal by man and animals can lead to their death after the metals have biomagnified in their systems. Lead and Zn application in general, affected the vegetative growth; both fresh and dry weights were reduced with increasing concentrations of the metals. These results show that these metals are toxic to human and animal health. As a result, farmers should be encouraged to use water from good source for irrigation and also cultivate on metal-free soils if possible to save lives.     &nbsp

Drug prescribing pattern for under-fives in a paediatric clinic in south-western Nigeria

Background: The audit of drug prescribing pattern in under-five children is essential in identifying the various types of non-rational prescribing such as polypharmacy and irrational use of antimicrobials. The primary objective of this study was to determine the drug prescribing pattern for children aged below five years attending the paediatric outpatient clinic of a tertiary hospital in Ado-Ekiti, South-West Nigeria.Methods: A cross-sectional study was carried out using the medical records of patients who attended the paediatric clinic of the hospital between April 1 and October 30, 2013. The medical records of patients aged below five years were selected monthly for the period of the study using a regular interval ratio. Drug use indicators were assessed using the WHO guidelines on investigation of drug use in health care facilities.Results: There were 293(55.7%) prescriptions collected from male patients and 233(44.3% from female patients with a total of 1369 prescribed drugs (2.6 ± 1.1 drugs per prescription). A total of three hundred and seventy-four (71.1%) patients had at least one antibiotic prescribed with antibiotics accounting for 28.2% of all drugs prescribed, while 13.5% of all encounters had an injection prescribed. Prescribing by generic name was done in 68.9 ± 26.5% of all prescribed medications, and 60.4% of all prescribed medications were from the latest version of the Nigerian Essential Drug List. Three hundred and twelve children (59.3%) had at least one anti-malarial drug prescribed while analgesics drugs accounted for 6.1% of all prescriptions.Conclusion: This study showed that over-prescription of antibiotics, significant use of injections and prescribing by generic name are real issues among Nigerian paediatric prescribers.Keywords: Prescribing indicators, under-five, outpatients’ clinic, rational prescribing, Nigeri

In-silico identification of differentially expressed genes in Type 1 diabetes mellitus

The incidence of Type 1 Diabetes Mellitus T1DM varies markedly in different geographical populations but seems to be increasing globally. The focus of this research is to screen for T1D-associated differentially expressed genes (DEGs). A meta-analysis was conducted using the Gene Expression Omnibus (GEO) datasets. The datasets included samples from T1DM and normal patients. The Robust Multichip Averaging (RMA) procedure was used for background correction, normalization and summarization to obtain expression level data and to discover differentially expressed genes. Box plots, Density plots, RNA degradation plots and recommended procedures from Affymetrix for quality control were implemented. The DEGs were screened and the exclusively expressed genes were uncovered through the Venn diagrams and heat maps functions in R language. 3,824 genes were classified, as DEGs of which 2,030 were upregulated and 1,794 were downregulated. Seven key genes (TLN1, ANPEP, F13A1, SPARC, SPTBN1, IGHA2 and IGHA1) were exclusively expressed in the whole progression. 58 DEGs were revealed through the Venn diagrams while the Heatmaps showed the differential expression data for 35 genes. IGHA1, IGHA2, IGKV4-1 were significantly expressed and upregulated. Although some of these genes have been previously associated with T1D, many other genes were identified for further studies

THRESHOLD-BASED BANDWIDTH ALLOCATION SCHEME FOR MULTISERVICE WIRELESS NETWORKS

Priority Queuing with Buffer Management (PQBM) has been recently proposed in the literature. The protocol is acclaimed to be a very attractive candidate in current (2.5G and 3G) and next (4G) multiservice wireless networks. However, it suffers bandwidth monopolization by higher priority data packets. This paper proposes a new scheme namely Improved Priority Queuing with Buffer Management (IPQBM) with a view to redistributing service provision to the data classes optimally. In particular, the scheduling discipline of PQBM is modified so as to correct the monopoly problem. IPQBM is compared with PQBM vis-à-vis throughput and mean delay of data packets. Numerical results reveal that IPQBM offers improved throughput for lower priority data packets by ensuring that higher priority data class does not have a monopoly of bandwidth resources

Causes of EndSars Protest as Perceived by Polytechnic Students in Ondo State, Nigeria

The study examined the Causes of Endsars Protest as Perceived by Polytechnic Students in Ondo state.  The sample population was selected from Rufus Giwa Polytechnic, Owo, Ondo State. Result from this study revealed that, there was significant difference between the perception of students who were part of the protest and those who were not part of the protest (t=-2.12, df=1006, p<.05), there was also a significant difference in the perception of students based on political affiliation (t=5.15, df=969.71, p<.05). However, the result furthered reveals that 430(42.7%) of students were not part of the protest due to various reasons, while 109(25.2%) were afraid of being killed by the police/military, 170(39.4%) sees the protest as a waste of their time as they did not see the protest as the solution to the Nigeria problems. T-test and ANOVA were the statistical analysis used to test hypothesis in this study. The researcher(s) developed instrument titled “Causes of Endsars Protest Scale” (CEPS) which was used to collect the data for the study. The scale has a reliability of 0.60, using eighty-eight students to test for reliability. Three hypotheses were stated for the study and were all tested at 0.05 levels of significant. The study therefore recommended that government should identify with the suffering and pains of its people, which should be reflected in how governance is being done and proper mental and emotional screening should be carried out on recruited police officers