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Volume 6 Issue 4

S.No. Title & Authors Page No View
1

Title : Water Economy via Oriented Root Elongation of Mediterranean Plants: Physiological Parameters

Authors : Chrysanthi Chimona, Sophia Rhizopoulou

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Abstract :

Plant species grown in the Mediterranean region have been selected for an experimental study regarding plant ability to endure harsh, abiotic conditions such as water deficiency. Young plants of Ceratonia siliqua L., Myrtus communis L., Nerium oleander L., Rosmarinus officinalis L. and Pittosporum tobira (Thunb.) were placed in elongated plastic tubes and rhizotrons, which allow non-destructive observations of plant material, and were grown under controlled light and temperature conditions, with varying irrigation patterns in a growth chamber, for a 30-day period. Sugar, proline and chlorophyll content were measured in above and below ground tissues of the considered species, during the 30-day experimental period. The results show that Ceratonia siliqua, Myrtus communis and Nerium oleander are more capable of enduring drought conditions, in comparison to Rosmarinus officinalis L. and Pittosporum tobira (Thunb.). The results can be used for planning green urban landscapes with introduction of naturalistic planting, using plant species adapted to the scarcity of water during prolonged, ambient drought conditions.

 

01-05
2

Title : On the Role of Taylor Expansion with Exponential Nonlinearity in BVP

Authors : I.K. Youssef , H.S. Mansour

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The finite difference method is employed to introduce a consistent nonlinear system of algebraic equations corresponding to the nonlinear boundary value problem (BVP). Taylor expansion is used as a linearization technique to introduce a linear algebraic system of equations approximating the nonlinear system. Solutions of the linearized system are taken as the initiation for the Newton’s Raphson iteration when solving the nonlinear system. Application  to Bratu’s problem and similar problems with damping effects have illustrated the efficiency of the treatment. Two numerical examples with their graphical representation are given. The calculated results have illustrated the correctness of the treatment.

06-08
3

Title : Research on Social Needs Oriented Practice Teaching Reform Under the Large Class Training Mode

Authors : Ming Li, Xiaoyu Qi

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Abstract :

With the popularization of the large class training mode, more and more students have accepted the training of the major classes. While the large class training is improving the comprehensive quality of students, there are also the students' ignorance of the specialty, the blind course selection and practice exiting. At the same time, the social orientation of students is not exactly same, and students' expectations for the type of work in the future are also different. In order to solve the problem of low practical efficiency in the large class training mode as soon as possible, the practical teaching under the large class training mode is perfected and optimized to improve the effectiveness of practical teaching and meet the needs of the society better.

09-12
4

Title : Sustainability-Oriented Practices of Eco-Innovation, Eco-Commitment and Organizational Performance of A Developing Economy

Authors : Dr. Ernest Jebolise CHUKWUKA, Udo-Nwokocha NWOMIKO

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Abstract :

This study presents an empirical investigation of Sustainability oriented practices of Eco-innovation, Eco-commitment and organizational performance of a developing economy. This study was also motivated by the need to solve the environmental problems caused by the activities of profit driven entrepreneurs in developing economy as well as exploring the benefits to organizations. The study was guided by three key objectives, from which appropriate research question and hypotheses were formulated. The specific objectives of this study were (1) to ascertain the extent to which eco-commitment practice affect the selected manufacturing firms employee job satisfaction. (2) To establish the degree to which eco-innovation affect market share of selected manufacturing firms in a developing economy. This study adopted the survey design. Simple random sampling technique was used in selecting the 10 manufacturing firms in Nigeria. A sample size of 543 respondents was determined from the population of 5705 drawn from management, middle and lower cadre of the selected manufacturing firms using Cochran (1977) statistical formula. A stratified sampling technique was also used to determine the proportional allocation of questionnaire to management cadre, middle cadre and lower cadre. Designed questionnaire and personal interview were used for primary data collection. The questionnaire was structured on 5-point Likert scale. The validity of the instrument was ascertained using content validity. The instrument was checked for Reliability using test re-test method through Cronbach alpha with a value of 0.90, which shows consistency in the items of survey. Data were analyzed and the hypotheses were tested using linear regression analysis. Probability level of significance was given at 5%. Data were presented using simple percentage. Findings revealed that Eco-commitment practice had a significant and positive effect on employee job satisfaction (r=.514a;F=88.065;T=9.384;p-.000). Eco-innovation had a positive effect on the market share of selected manufacturing firms in a developing economy. In conclusion, the implementation of green business practices, principles and processes will lead to very positive outcome that will be visibly manifested in the organization and the environment.

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5

Title : Effect of Human Resource Management Practices on Employee Retention and Performance in Nigerian Insurance Industry

Authors : Dr. Ernest Jebolise Chukwuka, Nkiru Peace Nwakoby

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This study presents an empirical investigation of the effect of Human Resource Management Practices on Employee Retention and Performance in Nigerian Insurance Industry. This study was motivated by the need to solve the problem of high employee turnover in Nigerian Insurance Industry.Employee turnover is an enemy of productivity and increases cost of running a business. Human Resources (HR) are the most valuable asset of any organization that is why incessant increase in turnover of skillful human resource in an organization will create a gap that will take time to fill at extra cost. This study was guided by two key objectives, from which appropriate research questions and hypotheses were formulated. The specific objectives of this study were:(1) determine the nature of relationship between Human Resource Management Practices and employee retention in Nigerian Insurance Industry.(2) Ascertain the extent of correlation between Human Resource Management Practices and employee performance in Nigerian Insurance Industry.  A Sample size of 250 was determined from the population of 785 drawn from Management and staff of selected firms from insurance industry using Taro Yamene’s formula. The data collection was by questionnaire structured in five point Likert scale. The study concludes from the result as confirmed by the survey that there was a weak and insignificant effect of HRM practices on employee Retention in Nigerian Insurance Industry. However, the study also confirmed that HRM practices have a positive and significant effect on employee performance. This paper strongly recommends that Government through NAICOM should help to check the high handedness of some insurance firms on their employees. Some of the insurance firms fail to implement Nigerian labour laws and employee work benefits.

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6

Title : Effect of The Methanol Leaf Extract of Anonna muricata(MEAM) on The Serum Chemistry of Trypanosoma brucei brucei Infected Albino Rats

Authors : IKEOGU N.M. , IKEOGU C.F ., EZEH I.O., EKE I. G., ONAH D. N.

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Abstract :

This study investigated the effect of the methanol leaf extract of Annona muricata (MEAM) in the serum chemistry of albino rats experimentally infected with Trypanosoma brucei brucei. A total of 20 adult male albino rats weighing between 78g and 100g were used for the study. They were randomly assigned into 4 groups (I ­­­­­­­­­­­­­­– IV) of five rats each. Groups I and II were infected intraperitoneally with 1.0 ×106 trypanosomes suspended in 0.2ml of Phosphate Buffered Saline (PBS) on day 8 of experiment. Group I was treated was treated with 200 mg/kg of MEAM orally every day for 3 days following detectable parasitaemia (4-5days of post infection). Group II was treated with 7.0 mg/kg of diminazene aceturate intramuscularly on day 14 of experiment (6 days post infection). Group III served as the uninfected untreated control while Group IV was uninfected and treated with 200mg/kg MEAM. Parameters such as Parasitaemia, Packed cell volume (PCV), Haemoglobin concentration, Total leucocytes count, Differential leucocytes count,Rectal temperature and serum activities of Aspartate aminotransferase (AST),Alanine aminotransferase (ALT) as well as serum levels of creatinine, Urea, Albumin,Total protein and Globulin were used to assess the anti trypanosomal activity of MEAM. The acute toxicity test and the in vitro anti  trypanosomal activity of the extract were studied using standard methods prior to commencement of the study. The results of the acute toxicity test showed the LD 50 of the MEAM to be 447 mg/kg whereas the LC50 of the extract was recorded at 0.01 in vitro. The pre- patent period of infection was 3days. Treatment with diminazene aceturate cleared the Parasitaemia in group II. An overall significant decrease (P< 0.05) in PCV and Haemoglobin were observed in the infected groups. Similarly, a significant decrease (P< 0.05) in total leucocytes count was also seen in the infected groups. This decrease was mainly due to a significant decrease (P<0.05) in the leucocytes count of the infected groups. There was a significantly higher (P<0.05) mean serum AST and ALT activities in rats of group I than those of group II, III and IV. A significantly higher (P<0.05) mean serum creatinine level was also seen in groups I and IV than in groups II and III, whereas the mean urea level was significantly higher (P<0.05) in group I than in groups II, III and IV.It is therefore concluded that MEAM showed an in vitro anti trypanosomal activity. However, this was observed in vivoat the dose and route of administration., MEAM may be nephrotoxic as seen with the elevated levels of creatinine in group IV.

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7

Title : Effect of the Glyphosate Herbicide uproot® on Non-functional Blood Plasma Enzymes of Juveniles of Clariasgariepinus

Authors : Alagoa K.J, Daworiye P.S, Ipiteikemuh B

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The effect of the herbicide glyphosate on the plasma enzymes of Clariasgariepinus was investigated in order to gauge the possible effect of its use in the environment. Juveniles of Clariasgariepinus of mean length14.0cm ± 1.2cm and mean weight 8.0gm ± 0.3gm were procured from Ellah Lakes Obrikom, Rivers State.They were transported in plastic containers under cool condition to the Laboratory of the Department of Biological Sciences, Niger Delta University, Amasoma, Bayelsa State.The fish were acclimated in big plastic basins for 7 days and fed pelleted diets at an estimated 3% body weight. Mortality during acclamation did not exceed 3% of total fish population therefore the fish were certified fit for use. A range finder test was conducted prior to the definitive test. This was done to determine the suitable range of concentration for the experimental test. They were exposed to sublethal concentrations of 0.25ml/l, 0.50ml/l and 0.75ml/l. The control tank had no glyphosate. They experimental tanks were exposed for seven (7) days and blood collected from fish in each aquaria tank by cardiac puncture using physical restrain with a 21 gauge hypodermic needle and syringe. Blood samples were taken in triplicates. Blood samples were taken to the laboratory of Federal Medical Centre, Yenagoa. They were analysed for Alanine Amino Transferase (ALT), Aspartic Amino Transferase  (AST), Alkaline Phosphatase (ALP) using standard techniques. Data were analysed for mean, standard deviation and analysis of variance (ANOVA) at 95% confidence limit. Duncan Multiple Range Test (DMRT) was employed to compare means. This was done with the aid of the SPSS software. Results indicate that all the enzymes from blood plasma of fish increased with increasing concentrations of glyphosate. This is indicative of either liver, kidney or tissue damage. Therefore, the presence of glyphosate in aquatic ecosystem could be dangerous to fish and subsequently to human health. There is a need to observe restrain in its usage.

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8

Title : Assessment of Tourism Potentials and Their Contributions to The Socio-Economic Development of Idanre People, Ondo State, Nigeria

Authors : Adeniyi Joshua Olu, Olugbamila Omotayo Ben, Olajide Tosin Paul

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Nigeria is a country that is blessed with a lot of tourism potentials and it is painful that attention is being diverted from tourism sector that could provide job opportunities for many Nigerians rather than concentrating on only the oil sector.  Many countries rely on tourism for their economic survival (Dubai, Kenya, India, China, among others.) and most of these countries are not endowed better than Nigeria in terms of tourism resources. Both primary and secondary data were utilized in this research. Secondary data were sourced from literatures; while primary data was sourced using personal observation, oral interview which was directed at vendors close to the resort and structured questionnaires which were administered to tourists using purposive sampling. 100 questionnaires were administered to the tourists. Analysis revealed that some of the infrastructural facilities at Idanre hills resort are not in good condition due to lack of maintenance and some of the monuments at the ancient town of Idanre are not maintained. This paper assessed Idanre hills resort and discovered if well developed, it will promote other tourism potentials in Idanre thereby boosting the socio-economic activities of the people in the study area and as well improve the economy of Ondo State at large. Recommendations on how Idanre hills resort could become ‘a home away from home’ were put forward.

 

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