Ultimate boundedness stability and controllability of hereditary systems

By generalizing the Liapunov-Yoshizawa techniques, necessary and sufficient conditions are given for uniform boundedness and uniform ultimate boundedness of a rather general class of nonlinear differential equations of neutral type. Among the applications treated by the methods are the Lienard equation of neutral type and hereditary systems of Lurie type. The absolute stability of this later equation is also investigated. A certain existence result of a solution of a neutral functional differential inclusion with two point boundary values is applied to study the exact function space controllability of a nonlinear neutral functional differential control system. A geometric growth condition is used to characterize both the function space and Euclidean controllability of another nonlinear delay system which has a compact and convex control set. This yields conditions under which perturbed nonlinear delay controllable systems are controllable

Optimized Remote Network Using Specified Factors As Key Performance Indices

This paper discuss the implementation of an optimized remote network, using latency, bandwidth and packet drop rate as key performance indicator (KPI) to measure network performance and quality of service (QoS). We compared the network performance characteristics derived on the Wide Area Network (WAN) when using Fiber, VSAT and Point-to-Point VPN across the internet respectively as the network infrastructure. Network performance variables are measured across various links (VAST, Fiber and VPN across the internet) and the corresponding statistical data is analyzed and used as base-line for the optimization of a corporate network performance. The qualities of service offered on the network before and after optimization are analyzed and use to determine the level of improvement on the network performance achieved

Managing and Improving Upon Bandwidth Challenges in Computer Network

Managing the bandwidth of a computer network is always faced with great challenges. This research was necessitated by the urgent need to manage the University network currently experiencing congestion in both the local LA� and on the internet backhaul with a view to improving network performance and reduce the huge recurrent on the WA� link. However, there exists various ways that have been deployed towards solving these problems. In this paper we examined existing bandwidth management, effect of limited bandwidth on the network performance and profound solutions of techniques that enhanced or improved the bandwidth efficiency. Also, included in this research work are the studies of the effect of limited bandwidth on work load, type of protocol used and the effect of network congestion on the quality of service of a Wide Area �etwork (WA�). By comparison, from the modeling of the effect of work load and limited bandwidth on the throughput of a wide area network based on experimental simulation and real time simulation scenarios, some observations were made and recommendation of solutions were given from the analyzed results

Development of Cultism in Secondary Schools in Rivers State (1999-2018): It’s Implications for Educational Development

The development of cultism in secondary schools in Rivers State had severe negative implications on the educational development of students across the State.  Series of measures were undertaken to curtail the proliferation of cultism among secondary school students. However, cultism has proliferated unabated like wide fire in secondary schools in Rivers State. It is against this backdrop that this study was undertaken to examine the development of cultism in secondary schools and its implications on educational development in Rivers State. Three research questions were formulated to guide the study. Data were gathered through secondary sources such as textbooks, journals, Government publications, newspapers, and student’s publications such as dissertations and thesis. The secondary data collected were subjected to content analysis. The study established that illegal collection of levies by the youth, intake of hard drugs by the students, lack of basic needs such as food, shelter, negative influence from the peer group, and teachers’ negative attitude towards their students led to the proliferation of cultism among students in secondary schools in Rivers State. The study also established that the proliferation of cultism has sever negative impact on educational system in Rivers State. It is disastrous to the society in general.   Based on the above findings the study recommended among other things that the government should design poverty alleviation strategies for students such as bursary and scholarship awards. This will enable poverty-stricken students to take care of their immediate personal needs

Moringa oleifera Lam extract attenuates gastric ulcerations in high salt loaded rats

Moringa oleifera Lam is a plant used extensively both in traditional and orthodox medicine to treat myriad ailments, including gastrointestinal disorders. This study was carried out to investigate the effect of leaf extract of M. oleifera some gastrointestinal function parameters in high salt loaded rats. Acute toxicity study was done using 70 male white mice (18-20 g) were used for the study. They were randomly selected and assigned to 7 cages of 10 animals per cage. Percentage mortalities were converted to probits and plotted against the log10 of the dose of the extract from which the LD50 value was calculated. Fresh leaf extract of M. oleifera was Soxhlet extracted. 24 albino Wistar rats were randomly assigned into 4 main groups of 6 rats each. Fed on normal rat chow, high salt (8% NaCl) diet + 1% NaCl drinking water and/or M. oleifera extract (600 mg/kg bw). The feeding regimens lasted for 42 days. Results obtained revealed that the extract had an LD50 value of 1,872.22 mg/kg from which a test dose of 600 mg/kg was derived for the feeding regimen. The salt fed rats had significantly (p<005) raised basal gastric acid output (9.03 ± 0.17 mmol/L/hr) compared with control (7.27 ± 0.17 mmol/L/hr), but had blunted response to administered histamine and cimetidine, while treatment with the extract enhanced the sensitivity of histamine in high salt loaded rats. Gastric mucus concentration was significantly (p<0.05) higher in the salt untreated group (0.25 ± 0.004 g) compared with other groups. The salt fed untreated group also had significantly (p<0.05) raised gastric ulcers (10.83 ± 0.70) compared with other groups, these were reversed following Moringa treatment. In conclusion, Moringa oleifera extract reverses gastric ulcers and blunted histaminergic receptors in high salt fed rats. The mechanism by which high salt increases gastric secretion is independent of the histaminergic mechanism

The Anti-Nutritional and Proximate Composition of Rain Tree (Samanea saman) Pod Samples

The anti-nutritional and proximate composition of pods of Samanea saman were determined. About 600g of wholesome, cleaned and dried pods were divided into two portions: one portion was ground as whole pod meal while the other portion was deseeded and ground as seedless meal. The removed seeds were ground separately as a sample to obtain three samples namely: whole pod, pulp and seed samples. Triplicate data obtained were subjected to One-Way ANOVA using SPSS software of version 21. Mean values and Fisher’s least significant difference (LSD) were determined for the separation of the means at (p≤0.05). The whole pod had 1.49mg/100g oxalate, 1.97mg/100g hydrogen cyanide, 0.71mg/100g tannins, 27.07mg/100g saponins, 0.51mg/100g flavonoids and 1.71mg/100g alkaloids, which were significantly(p≤0.05) different from that of pulp (1.89mg/100g oxalate, 1.51mg/100g hydrogen cyanide, 0.86mg/100g tannins, 28.46mg/100g saponins, 1.00mg/100g flavonoids and 1.41mg/100g alkaloids) and seed samples (1.39mg/100g oxalate, 1.61mg100g hydrogen cyanide, 0.56mg/100g tannins, 26.51mg/100g saponins, 0.49mg/100g flavonoids and 1.86mg/100g alkaloids). The moisture contents were pulp (19.30%), whole pod (15.50%) and seed (9.20%). Ash content were whole pod (4.70%), pulp (2.90%) and seed (2.60%); Ether extract of whole pod, pulp and seed were 3.31%, 2.52% and 2.66% respectively. The crude proteins were whole pod (13.21%), pulp (10.98%) and seed (21.55%); crude fibre of the plant were whole pod (15.95%), pulp (6.77%) and seed (8.47%). The whole pod had 47.33% carbohydrate which was significantly (p≤0.05) lower than the carbohydrate of pulp (57.53%) and seed (55.52%). The utilization of the pods of S. samana is a significant source of bioactive that if harnessed in the formulation of nutraceutical beverage could offer a whole lot of health benefit to the users

The impact of basic forensic accounting skills on financial reporting credibility among listed firms in Nigeria.

The paper aims at evaluating the impact of basic forensic accounting skills viz: communication skills, technical & analytical skills, accounting & auditing skills and psycho-social skills on the financial reporting credibility of listed organisations in Nigeria. The scope of the study is composed of firms quoted on the Nigerian Stock Exchange as at January, 2018 while the study population is the users and auditors of the financial reports produced by these entities. The users of financial reports are represented by investment advisers which a segment of capital market operators while the auditors are represented by the Big 4 Audit Firms operating in Nigeria as at January, 2018. The research design employed is the survey approach by which primary data was collected from the sample respondents described above while the multivariate analysis was conducted to highlight the impact of the selected independent variables on financial reporting. It was found that, with the exception of communication skills which exhibited a negative but significant impact, all the other basic forensic accounting skills exert positive and significant impact on the methods by which an organization reports her financials. It is prescribed that aspiring forensic accountants should be adequately trained to be able to practice the profession satisfactorily

Taking up the cudgels against gay rights? Trends and trajectories in African Christian theologies on homosexuality

Against the background of the HIV epidemic and the intense public controversy on homosexuality in African societies, this article investigates the discourses of academic African Christian theologians on homosexuality. Distinguishing some major strands in African theology, that is, inculturation, liberation, women’s and reconstruction theology, the article examines how the central concepts of culture, liberation, justice, and human rights function in these discourses. On the basis of a qualitative analysis of a large number of publications, the article shows that stances of African theologians are varying from silence and rejection to acceptance. Although many African theologians have taken up the cudgels against gay rights, some “dissident voices” break the taboo and develop more inclusive concepts of African identity and African Christianity