AFRREV STECH: An International Journal of Science and Technology最新文献

{"title":"Biostratigraphic evidence of early cretaceous (Aptian – Albian) in Cote D'ivoire Sedimenatry Basin based on planktic foraminiferal data","authors":"K. M. Bamba, B. Digbéhi, E. T. Goua, B. Baikoro, M. Doukoure","doi":"10.4314/STECH.V6I2.1","DOIUrl":"https://doi.org/10.4314/STECH.V6I2.1","url":null,"abstract":"Aptian – Albian planktonic foraminifera were studied from seven boreholes MK 1, MK 2, MK 3, MK 4, MK 5, MK 6 and MK 7 drilled in Cote d’Ivoire sedimentary basin. The latest Aptian was identified in holes by very small size planktonic assemblages represented by Hedbergella maslakovae , Hedbergella similis Globigerinelloides duboisi and Globigerinelloides clavatus . Albian planktonic assemblage was characterized by Ticinella primula , Ticinella roberti , Ticinella raynaudi , Ticinella madecassiana , Biticinella breggiensis , Hedbergella rischi , Hedbergella gorbachikae, Hedbergella angolae , Costellagerina lybica , P raeglobotruncana delrioensis . The presence of latest Aptian planktonic assemblages suggest that marine conditions were already established during Late Aptian - Early Albian within Cote d'Ivoire sedimentary basin during this period. Keywords: Aptian, Albian, Cote d’Ivoire, Planktonic, Foraminifera","PeriodicalId":272760,"journal":{"name":"AFRREV STECH: An International Journal of Science and Technology","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130831660","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ura Yilan : The art and science of rain making among the Tiv of central Nigeria","authors":"P. Andrew","doi":"10.4314/STECH.V6I2.6","DOIUrl":"https://doi.org/10.4314/STECH.V6I2.6","url":null,"abstract":"Rain is a natural phenomenon in which showers by means of natural causation down- pours water from the sky for the purpose of moisturing the earth, man, plants and animals for their sustenance. Without water, survival for man, plants and animals on earth will be a mirage. The fact that the Tiv are farmers who produce variety of crops implies that the Tivs necessarily need rain for their survival and for the crops and animals they rear. Thus, when the Tivs experience a dearth in rain, they employ the services of the yilan ura (rain maker) of the community for the purposes of ura yilan (rain making). The art and science of rain making among the Tiv is meant to avert catastrophe in the community for man, plants and animals. In making rain, the Tiv do not usurp or short change Aondo - the Supreme Being; but they do so conscious of the fact that Aondo has given them the arcane knowledge to tap into and control the natural resources of their environment for their benefit. Thus, the study is motivated by the factors responsible for ura yilan and the techniques employed by the Tiv to bring about rain and the derivable benefits there from. The study employed both the primary and secondary methods to collect data. Oral interviews were held with rain makers in selected parts of Tivland. In the secondary method, information was collected from books, journals, encyclopaedias, newspapers and magazines, etc. The study established that the Tiv, like other ethnic nationalities across the globe, make rain when circumstances demand. The Tiv therefore, make rain for different purposes including for productive, destructive/obstructive purposes as well as the detection of evil in the community. Ura yilan (rain making) among the Tiv was important in the sense that it procured bountiful harvest, regulated evil and cleansed Tiv society of defilement as well as bringing peace and happiness in the society. Expectedly, several taboos followed the making of rain among the Tiv; for instance, the genuine or yilan ura was prohibited from touching a corpse, never interacted with women observing their menstrual cycle and neither was he in the habit of collecting ingyato (consent fee) to cause the death of members of his community. In conclusion the study notes that although the art of rain making has drastically receded with the advent of western education and Christianity; where it becomes necessary for the Tiv to make rain, it should be for productive but not destructive ventures.","PeriodicalId":272760,"journal":{"name":"AFRREV STECH: An International Journal of Science and Technology","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131630805","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Analytic determination of values on the truth table: possible implications","authors":"Etorobong Godwin Akpan","doi":"10.4314/stech.v6i1.6","DOIUrl":"https://doi.org/10.4314/stech.v6i1.6","url":null,"abstract":"The paper refers to the traditional approach used in the specification of values on the statement constant columns of the truth table as pictorial. It differentiates it from the α y x coordinate model, which it introduces as an analytic approach for the achievement of the same objective. The coordinate is stated as: α x y = x /2( 2n / 2y ) . The αyx is shown by analysis to derive from the coordinate of x and y as α y x = x / y . y is shown to derive from the coefficient of C y and C y = 2n / 2y (T,F) 2y / 2 . C y is an algebraic function introduced in the paper for the computation of truth table columns. The paper shows by implication that the delineation of the value of any truth table unit no longer stands in need of pictorial aids due to the introduction of the coordinate. Results from analysis shows that the specific value of a truth table unit could be determined set theoretically, without an actual truth table provided the α y x coordinate is applied. Keywords: Algebraic Function, Coordinate, Columns, Rows, Truth Table, Truth Value","PeriodicalId":272760,"journal":{"name":"AFRREV STECH: An International Journal of Science and Technology","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121667868","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Computer forensics investigation; implications for improved cyber security in Nigeria","authors":"C. Chigozie-Okwum, D. Michael, S. G. Ugboaja","doi":"10.4314/STECH.V6I1.5","DOIUrl":"https://doi.org/10.4314/STECH.V6I1.5","url":null,"abstract":"The rapid growth of computers, mobile devices and digital media has changed the way we communicate and interact in the techno-age. This rapid growth of technology has also birthed new ways of engaging in crimes in ways that seem easy but very difficult to trace, investigate and prosecute. Cyber-crimes are on the increase making the Nigerian cyber space very insecure. Computer forensics investigation is relatively new in Nigeria but promises to serve as a watch dog in curbing and checkmating cyber-crimes and ensuring cyber security. This paper aimed at examining the concepts of cyber-crime, cyber security and the implications of computer forensics investigation on cyber security in Nigeria. Keywords: Computer Forensics, National Security, Cyber Security, Cyber Crime, Forensics Investigation","PeriodicalId":272760,"journal":{"name":"AFRREV STECH: An International Journal of Science and Technology","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133837199","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"An interactive web-based extranet system model for managing students’ academic records","authors":"F. Ikpotokin, P. Imiefoh","doi":"10.4314/STECH.V6I1.7","DOIUrl":"https://doi.org/10.4314/STECH.V6I1.7","url":null,"abstract":"The effectiveness of electronic transactions in institutions of learning in recent past is highly contingent upon an information and communication technology infrastructure. Such infrastructure enhances information management, cooperation and coordination during e-transactions. The infrastructure that allows such transactions to thrive and grow is a model for an interactive web-based Extranet system and not just a site for transactions. This infrastructure must be carefully planned and modeled from the outset of Extranet modeling, particularly in a web-based environment. This research adopted an interactive web-based Extranet system for students’ academic records in Ambrose Alli University, as a research domain, which depicts a positive trend towards achieving objectives for students, lecturers and parents to access and compute results online rather than maintaining physical documents. The database will serve as repository of students’ academic records over a long period of time. The methodology of the special software to be developed involved the collections of main modern tools and technologies, such as Apache Web Server, PHP and MySQL which can work on any platform, such as windows and Linus. Keywords: Extranet-Model, Interactive, Web-Based, Students, Academic, Records","PeriodicalId":272760,"journal":{"name":"AFRREV STECH: An International Journal of Science and Technology","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124631508","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The problem of mystery in science and technology: a philosophical analysis","authors":"Peter Z. Alawa","doi":"10.4314/STECH.V6I1.4","DOIUrl":"https://doi.org/10.4314/STECH.V6I1.4","url":null,"abstract":"When one talks about science, it is all about facts we know; technology is the practical products of science, but there are certain phenomena, occurrences or incidences that are beyond human comprehension, and therefore cannot be subjected to any empirical investigation. Such are called mysteries, for instance, the existence of God in itself is shrouded in mysteries. However, the problem is that today sciences use mysteries but deny that they do not have room for it. They are pretending because the entire theoretical framework of all scientists is not empirical. In this paper, we are establishing that we live in the middle of mysteries if we care to notice it, and we are surrounded by mysteries. Therefore, we need to be humble at the presence of the Supreme Being. But now the contemporary man because of science and technology thinks he/she knows everything which leads to pride and arrogance - the ills of our society. Our method is textual analysis; it is a critical look at the works written on mysteries in order to learn from the mysteries, since we cannot understand it all through reasoning and scientific experiments. Keywords: Revelation, Mysteries, Science and Technology","PeriodicalId":272760,"journal":{"name":"AFRREV STECH: An International Journal of Science and Technology","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116490673","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Challenges and contradictions in Nigeria’s water resources policy development: a critical review","authors":"O. G. Okeola, O. Balogun","doi":"10.4314/STECH.V6I1.1","DOIUrl":"https://doi.org/10.4314/STECH.V6I1.1","url":null,"abstract":"The paper is an exploratory review of Federal Government of Nigeria’s gazettes, agencies reports, intergovernmental documents on water resources policy as primary data source and publications by academia; with the aim to contribute insightfully in the ongoing effort of the government and stakeholders in designing a comprehensive water resources policy. The paper identified contradictions and overlapping statutory responsibility that constituted policy implementation impediments’ and galvanized discourse toward effective implementable policy. A paradigm shift is advocated by making the River Basin Development Authorities (RBDAs) the center stage of the nation’s water resources policy development and implementation. But considering the underdeveloped status of Nigeria, there are three critical sectors whose effective functionalities are synergistic for accomplishing the RBDAs vision. These are Energy, Food and Public Health. It is imperative to temporarily focus the nation’s water policy on them for a period of at least ten years through enactment of “Dedicated Water Resources Bill”. The Bill should only address (1) institutional framework (2) Energy, Food and Public Health security and (3) Integrated water resources management. Work should continue on the comprehensive Water Resources Bill through the process of consultation that promote inclusion, accountability, transparency, and the needs of the vulnerable. Keywords: Nigeria, Policy, Water resources, RBDAs, Development","PeriodicalId":272760,"journal":{"name":"AFRREV STECH: An International Journal of Science and Technology","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126509375","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The anatomy of privatization programme in Nigeria, matters arising","authors":"G. Eke, Clementina Ngozi O. Chiazor","doi":"10.4314/stech.v6i1.3","DOIUrl":"https://doi.org/10.4314/stech.v6i1.3","url":null,"abstract":"The paper traced the origin and reasons for privatization programme in Nigeria to the alleged sorry state and the depressing picture of inefficiency and low productivity services. The paper went on to state that 28 years have passed since the programme was inaugurated, Nigerians are yet to fully realize the benefits of privatization programme. The management corruption and inefficiency are still the order of the day. The paper was of the opinion that it is the same corrupt leaders who mismanaged those public enterprises that are clamouring for the sale of them, they are the same people who purchased them at very low prices. The paper concludes by saying that the programme only afforded some corrupt leaders and their foreign collaborators in advanced countries of the world the Opportunities to acquire those properties at the detriment of the average Nigerian, meanwhile the purpose and objectives of the programme are still hanging on the air. In recommendation, the paper draws attention of the Government to the number of people who have lost their jobs as a result of privatization. Finally, the programme can be good or bad depending on the type of people who operate it. There are certain establishments that should not be privatized, since most of them are the base of the Nations respect and integrity. Keywords: Privatization, economic depression, corruption, inefficiency and underdevelopment","PeriodicalId":272760,"journal":{"name":"AFRREV STECH: An International Journal of Science and Technology","volume":"99 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117230032","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Iterative method of analysis of single queue, multi-server with limited system capacity","authors":"V. Ezugwu, L. I. Igbinosun","doi":"10.4314/STECH.V6I1.2","DOIUrl":"https://doi.org/10.4314/STECH.V6I1.2","url":null,"abstract":"In this paper, analysis of single queue, multi-server with limited system capacity under first come first served discipline was carried out using iterative method. The arrivals of customers and service times of customers are assumed poisson and exponential distributions respectively. This queuing model is an extension of single queue, single server with limited system capacity. Performance measures of the model, such as the expected number of customers in the queue and in the system, the expected waiting times of customers in the queue and in the system respectively were derived. The performance measures so derived were compared with that of single queue, single server with limited capacity {M/M/1:(N/FCFS)} model. The numerical illustration indicates that single queue, multi-server with limited capacity {M/M/c:(N/FCFS)} model is more effective and efficient in handling congestions. Keywords: Iterative method, Single queue, Multi-Server queue model, Limited capacity, Performance measures","PeriodicalId":272760,"journal":{"name":"AFRREV STECH: An International Journal of Science and Technology","volume":"48 40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132367105","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Review of Courtyard House in Nigeria: definitions, history, evolution, typology, and functions","authors":"B. Markus","doi":"10.4314/STECH.V5I2.8","DOIUrl":"https://doi.org/10.4314/STECH.V5I2.8","url":null,"abstract":"The courtyard is one among the familiar concepts commonly applied in the design of buildings in almost all the Nigerian cultural groups. It is truly the traditional expression of Nigerian indigenous architecture. Its definition, historical evolution, functions and typology is worth investigating. Also, its adaptation to the contemporary architectural design and practice in different building typology in the Nigerian context will be studied. Different courtyard house studies were examined through Journal papers, conference papers and the literatures. These studies revealed that the use of courtyard in buildings (in Nigeria) is from time of old, and has become adaptive to contemporary architectural design and practice. It has almost similar form with different features due to the religious and cultural diversity of the Nigerian people. The paper concluded that, the application of courtyard in the Nigerian various traditional architecture has been influence by the religious and cultural requirements of its people rather than climatic conditions and, therefore, for the purpose of cultural preservation of the Nigerian various indigenous architecture, the courtyard concept should not be discarded in the contemporary architectural style but should also be based on the climatic and passive design strategies for the attainment of a built environment that has a sense of interrelatedness with its local conditions. Keywords: History, Courtyard, Typology, Functions, Adaptation","PeriodicalId":272760,"journal":{"name":"AFRREV STECH: An International Journal of Science and Technology","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124819041","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}