European Journal of Scientific Research

Volume 156 No 1
April, 2020

3D Gravity Model for an Intrusive Body in the Douala Sedimentary Sub-Basin (Cameroon)
Eric N. Ndikum, Koumetio F., Kenfack J. Victor, Yevalla S. Gah-Muti and Charles T. Tabod
In this study, residual anomaly data of 165 data points located between latitudes 3° 32'N and 4° 12' N as and longitudes 8° 34' E and 9° 21' E have been processed. This data is characterized by very high positive anomaly around the North West portion of the Douala sedimentary sub-basin expressed as ring like contours. The study area covers a surface area stretching over a distance of about 71 km to the east and 49 km to the north.
The educational version of the GRAV3D software package was used to process this residual anomaly. A 3D orthogonal mesh with a total of 28 x 23 x 18 cells was generated and used to carry out 3D inversion on the data. This resulted in a 3D model of an intrusive body with average density contrast of about 0.27 g/cm3. The top and bottom of this body are located at depths of about 5.1 km and 33.5 km respectively, giving a vertical height of about 28.4 km. It stretches horizontally over a maximum distance of about 22.3 km from west to east and about 33 km from north to south. Considering the density contrast of this model and density of the surrounding sedimentary formations, this body has been confirmed to be an intrusive body of igneous origin. Forward modeling carried out on the 3D model of this intrusive body produced synthetic gravity data that is in very good agreement with the observed residual data with an absolute error of about 0.01.
Keywords: 3D model, inversion, forward model, Douala basin, Bouguer, anomaly

Modélisation et Expérimentation du Séchage Solaire Indirect en Couches Minces de Tranches de Tomates de la Variété Mongal
Roland Lankouande, Frédéric Ouattara, Kalifa Palm and Sié Kam
Dans ce travail, nous contribuons au séchage de tomates de variété Mongal. Pour ce faire, une modélisation et une expérimentation à l’aide d’un séchoir solaire indirect à convection naturelle est faite. Pour une meilleure simulation de la cinétique de séchage solaire de cette variété de tomate, nous avons adopté le modèle de séchage en couches minces. Les résultats obtenus montrent que la siccité de la tomate est atteinte après environ 19 heures de séchage aux mois d’avril. La teneur en eau finale après ce temps optimal de séchage est d’environ 0,10 kgeau/kgms en base sèche.
Keyword: Séchoir solaire, Séchage solaire indirect, Transfert thermique, Cinétique de séchage solaire, Modélisation.

Inhibition of Cholinesterase Activity by Copper Cations as New Biomarker Test
Reda Abdelhady Mustafa Elkhashab
The effect of heavy metals on enzymes was confirmed, there are widespread uses of butrylcholinesterase as biomarkers, also the Inhibition of butrylcholinesterase enzyme activity by cations of copper as heavy metal was observed. These threats, particularly for copper employees, one of its safety processes is a precautionary diagnostic test; we can expect people to be more susceptible to copper cations. In our research, we are developing a pre-test; by design an in vitro test, where the butyrylcholinesterase enzyme is our aim. by using a different precinorm kit, as individuals serum; then treated by copper cations; 20, 40 µg Cu+2/dl respectively and the original group ( untreated group –control group ). The enzyme value for control group (8461 ± 1416) U/l, and the treated group value were 8228 ± 1407 U/l (p-value = 0.297).and the second treated group value were 7565 ± 1397 U/l, (p-value = 0.023). We conclude that; copper can inhibit the butyrylcholine enzyme and can use this enzyme as a biomarker test, the higher the level of inhibition, the higher the risk of exposure to copper pollution sources. The test can be carried out on the workers in the field of copper industries.
Keyword: Biomarker test, Copper employees, Cholinesterase, Dibucaine test, heavy metals

Parental Level of Education and Students’ Career Aspiration: Philosophical Contributions for Education towards Learners’ Skills for Autonomy in Decision Making
Imo Martin Obot, Justine B. Apebende, Abigail Edem Okon and Achi Ndifon Bekomson
Lack of motivation and subsequently problem of job mobility is common in our society. The researchers blame these partly on parental undue influences on wards. This research aimed at studying parental level of education and students’ career aspiration. Research question that translated into research hypothesis was posted to guide the study. Descriptive survey design was employed for this study and simple random and purposive sampling techniques used to obtain a sample of 960 SS3 students from 30 public secondary schools in Northern Education Zone. Data for analysis was collected using an instrument titled Parental level of education and Students Career Aspiration Questionnaire (PlESCAQ) designed by the researchers. The hypotheses wase tested using contingency Chi-Square at .05 level of significance. Findings showed that the calculated X2-value of 273.38 is greater than the critical X2-value of 79.08. It was concluded that parental level of education influences students’ career aspiration in Northern Education Zone of Cross River State., Nigeria. The researches went further to make some related philosophical studies on autonomy and education. Based on the research findings, it was recommended among others that parents should not compel their children into taking up those occupations that they do not possess the required capacities, talents, interests and aptitudes for and that effective skills for autonomous decisions should inculcated in learners.
Keyword: Parents, Learners, Career and Autonomy

Quality Assurance Mechanism as Correlates of Secondary School Effectiveness in Southwest Nigeria
Haastrup T. Ekundayo
The study examined the relationship between quality assurance mechanism and secondary school effectiveness in Southwest, Nigeria. The study was a descriptive research design of the survey type. The sample was made up of 1,200 teachers from 60 secondary schools. Simple and stratified random sampling techniques were used to select the sample for the study. Three sets of instrument were used to collect the data for the study. They are Quality Assurance Mechanism Questionnaire (QAMQ); School Effectiveness Questionnaire (SEQ) and a proforma used to collect SSCE results of the students. The test-retest method of reliability was used to determine the reliability coefficients of QAMQ and SEQ which stood at 0.76 and 0.81 respectively. The data were analysed using various statistical tools. The hypotheses formulated were tested at 0.05 level of significance. The study revealed a positive correlation between supervision, in-service training; learning environment and school effectiveness. It was however recommended that the moderate level of compliance with quality assurance can still be improved upon. While efforts should be made to improve upon the level of school effectiveness. It was also recommended that the principals of schools should sustain the tempo of supervision in schools in order to enhance better school effectiveness.
Keywords: Quality assurance; school effectiveness; supervision, in-service training, learning environment.

The Impact of Organizational Ambidexterity on Strategic Orientations: The Mediating Role of Organizational Innovation in Private Hospitals in Jordan
Al-Ammary Saleh Shenshen and Fayez Jomah Al-Najjar
This study aims to identify the impact of organizational ambidexterity on strategic orientations and the mediating role of organizational innovation in private hospitals in Jordan. A questionnaire used as a tool to collect data through an investigation of the opinions of a sample of 274 managers. The study arrived at the following results: Organizational ambidexterity is of moderate importance, higher importance in strategic orientations, and moderate importance in organizational innovation in private hospitals in Jordan. Second, there is a statistically significant impact at (P ≤ 0.05) for organizational ambidexterity with its dimensions on the strategic orientations with their combined dimensions in private hospitals in Jordan. Finally, there is a statistically significant impact at (P ≤ 0.05) for organizational ambidexterity with its dimensions on the strategic orientations with their combined dimensions in the presence of organizational innovation in private hospitals in Jordan. Accordingly, the study recommended the following: The upper administration in hospitals need to work on promoting the concept of organizational ambidexterity. The focus is on the process of creating balance between exploring opportunities and exploiting them. In addition, hospital management should take care of the staff by achieving innovation and encouraging the creation and prioritization of an innovative culture. Management needs also to carry out research on creative individuals in order to unify them, monitor and keep pace with future changes, and improve the sustainability of hospital work.
Keywords: Organizational Ambidexterity, Strategic orientations, Organizational Innovation, Private Hospitals in Jordan

Development of Honesty and Discipline among Students in Calabar Education Zone of Cross River State
Imo Martin Obot, Michael Akam Abang, Abigail Edem Okon and Melvina N. Amalu
This study examined the development of honesty and discipline among students in Calabar Education Zone of Cross River State, Nigeria. One research question was posted in the study. Literature review was carried out based on the variable under study. Descriptive research design was considered most suitable for the study. Stratified and simple random sampling Techniques were adopted in selecting the 325 respondents sampled for the study. A validated 10 item “Yes” and “No” questionnaire was the instrument used for data collection. The inter-item consistency method based on Kuder-Richardson was used to establish the reliability of the instrument. Frequency and simple percentages was used for data analyses. The findings revealed that development of honesty can assist in the inculcation of discipline among students in the study area. It was recommended that teachers and school administration should exhibit equal treatment and attention to all students, no matter the social class/status so that it shall teach students ideas of social justice.
Keywords: Education, Honesty, Discipline, Value

Wearable Technology – A Bibliometric Analysis of Knowledge Production in the Areas of Computer Science, Social Sciences, Management, Business and Accounting from 1994-2019
Luciana Sousa Coelho Marson and Josir Simeone Gomes
This research analyzed the production of knowledge in the field of wearable technology from 1994 to 2019 in the areas of Computer Sciences, Social Sciences and Management, Business and Accounting. To this end, a bibliographic analysis was carried out based on the Scopus database, with the aim of investigating how research on wearables was presented worldwide, quantifying the main authors in the area, journals, institutions and countries that publish the most.Of the 877 articles analyzed, it showed that countries such as the United States, China and Korea have dominated the production of articles, and that the area of computer science holds 89.96% of research in the area of clothing. With respect to the universities that produce the most, the Chinese Academy of Sciences is the research leader, followed by RTH Zuriche and MIT. Finally, through the Vosviever tool, it was possible to identify trends in keywords in the last 25 years such as Ubiquitous, wearable sensor, smartwatch and virtual reality.
Keywords: Wearable technology, sensors, devices, computers

The Non-Compliance Condition of the Administrative Decisions Issued in the Light of the Jordanian Administrative Judiciary
Taha Atiyyat
It is it is by the natural, inherited guide to call upon justice and equity through the judiciary system. As the disciplinary cases arise, an employee has the right to file an appeal for a judge if he inspects it unfair or excessive. Thus, the employee’s, appellant, can resort to the concerned judicial authority, including the Jordanian Supreme Court of Justice, as later known by the Jordanian Supreme Administrative Court. In other words, the appellants’ purpose is the annulment of the disciplinary decision which was issued on the basis of negative subjectivity and the administrative judiciary is the authorized body that considers appeals against disciplinary decisions.

Improving Senior Secondary School Students’ Academic Achievement and Retention in Mathematics and Basic Science using Collaborative Concept Mapping Instructional Strategy (CCMIS)
Edoho, Emmanuel Asuquo, Asuquo, Inyang Maurice, Anditung,Peter Agbudu and Abasi, Andrew Umo
This study investigated on improving senior secondary school students’ achievement and retention in geometry using collaborative concept mapping instructional strategy (CCMIS) in Mkpat Enin Local Government Area of Akwa Ibom State. It adopted a quasi-experimental pretest posttest control group research design. A sample of ninety seven (107) senior secondary school 1 students was drawn in two randomly selected intact class from a population of 16 public secondary schools and 2185 SS2 students in Mkpat Enin Local Government Area of Akwa Ibom State of Nigeria. The study made use of Geometry Achievement Test (GAT) as instrument for data collection. The GAT was validated by two experts. The GAT was subjected to KR-20 reliability estimation which yielded a reliability coefficients of 0.87. Mean and Standard Deviation scores were used to answer the research questions while Analysis of Covariance (ANCOVA) was used to test the null hypotheses. The study revealed that there is significant difference in the mean achievement scores between students taught geometry using collaborative concept mapping instructional strategy and those taught using discussion method. The study also revealed that there is significant difference in the mean retention scores between students taught geometry using collaborative concept mapping instructional strategy and those taught using discussion method. It also found no significant difference between the mean achievement scores of male and female students in geometry taught using collaborative concept mapping instructional strategy and those taught using discussion method. It was recommended among others that CCMIS should be adopted while teaching geometry concepts in mathematics since it has been proved to be a viable option in enhancing students’ achievement and retention capacity regardless of their gender.
Keywords: Collaborative Concept Mapping Instructional Strategy (CCMIS), Achievement, Retention, Geometry.