Heavy Metal Distribution and Contamination in Soils around Enyigba Pb-Zn Mines District, South Eastern Nigeria

Twelve {12} soil samples were collected from the Pb – Zn mining district of Enyigba, Ameri and Ameka in the Abakaliki area of Ebonyi State, south-eastern Nigeria and analysed for As, Cd, Cu, Pb, Zn, Ni, Co, Mn, Ca and pH. The physico-chemical analyses show that pH is fairly acidic to neutral (5.3-7.0) resulting from the dissolution of the sulphide ore waste dump into the soil. The heavy metal mean trend indicates that As > Cd > Co > Mn > Cu > Ni > Pb > Zn. Ca is also high. The variations observed for the heavy metals suggest that both geologic and anthropogenic activities may be responsible for their distribution. Soil contamination is assessed on the basis of enrichment factor (EF) and contamination factor (CF). The results of enrichment factor (EF) show that using Mn concentration in the background value, Cd show extremely high enrichment, Cu, Pb and As have significant enrichment, while Co, Zn and Ni show moderate to low enrichment. The CF values for the soils indicate very high contamination for Cd, high concentration for As while Pb, Cu, Co, Mn, Ni and Zn show moderate contamination. Keywords: Soil Contamination, Partial Leach Test, Enrichment/Contamination Factor, Enyigba, Pb-Zn Mine

DEBAT TENTANG IMAM PEDOFIL DAN TANTANGAN PENDIDIKAN IMAM

The debate regarding pedophile priests has cornered the Catholic Church.Vigorous press campaigns have shaped public opinion about the Church as asafe haven for the perpetrators. Studies on the problem show that only a smallnumber of priests are pedophiles, in a comparison with other religious groupsor associations. Groups who give vigorous criticism of the Church in fact aresupporters of pedophilia both culturally and politically. This paper would liketo emphasize that the Church recognizes the existence of pedophilia among hermembers. But the Church has also decided to run a zero tolerance policy towardpedophile priests through law enforcement and educational reforms

Development of suitable approximation algorithms to be used in the description of heterogeneous reservoirs for secondary recovery studies.

The prediction method makes use of flow capacity distributions in a heterogeneous reservoir.A number of tests using varying degrees of data contamination shows that the model has the potential to reduce bad data effects. It was also shown that the model can be used to easily determine the reservoir floodable volume, the water injection schedule for secondary recovery operations, and an overall waterflooding performance.Our current capability to accurately predict the performance of a reservoir given a detailed description of its heterogeneities, calls for an urgent need for an efficient method of describing these non-conformities at any given locations in a reservoir.In this study, a suitable approximation algorithm was developed for use in the estimation of reservoir performance prior to waterflooding operations. This algorithm, a two dimensional cubic spline, constructs a smooth, and continuous function of the given data values. This smooth function with continuous first and second derivatives, removes the 'wiggly' and undulating characteristics often present in most polynomial approximations

RACISM IN KANT’S ANTHROPOLOGY

Immanuel Kant has been credited with much of the foundational thoughts in the evolution of deontology and deontological outlooks. The basic principle of his moral philosophy is that reason is the basis of our status as moral agents. By this, Kant means that to be moral is to be perfectly rational. But in his rather neglected or forgotten works – anthropology and physical geography, Kant had alluded that Africans lack rationality because of their skin colour. This paper therefore argues to the contrary that Africans are rational beings and that race or colour has nothing to do with rationality. Therefore, this paper is an attempt to show that Kant’s Anthropology is racist and so should be reconstructed. It is on this note that the paper concludes that although Kant’s bad claims reflect poorly on his general philosophical aptitude, they do not necessarily mean that all of his claims are wrong or cannot be salvaged

A PHILOSOPHICAL EXAMINATION OF THE CONCEPT AND NATURE OF INFIDELITY IN MARRIAGE AS A SOCIO-ETHICAL ISSUE IN CONTEMPORARY SOCIETY

Marriage is a product of both tradition and culture. In the African tradition, marriage is considered a sacred union due to its contributions and role in the society. For this reason, marital vows which include faithfulness or fidelity to one’s spouse are inviolable because infidelity undermines the very foundation of marriage and family in many ways.  Unfortunately, the very bond (fidelity/faithfulness) that unites and strengthens marriage and family has been undermined. Today, almost every family in our contemporary society suffers from the consequences of the breach of marital vows otherwise known as infidelity. Against this background therefore, this paper attempts a critical examination of infidelity in marriage as a socio-ethical issue in our contemporary society. By engaging the analytic and historical methods of analysis, the paper discovers that infidelity is present in nearly all marriages in our contemporary society and that the concept is not limited to just men, as women both young and old are closing in on their male counterparts in its frequency. The paper then argues that infidelity is indeed a moral as well as a social problem that has devastating long-term consequences on both the spouse and the society at large. Hence, the paper advocates for proactive measures or mechanisms that should be instituted by the government to check-mate the incidents of infidelity in marriage

Effects of land clearing methods on a tropical forest ecosystem and the growth of Terminalia ivorensis (A. Chev.)

SIGLEAvailable from British Library Document Supply Centre- DSC:D93914 / BLDSC - British Library Document Supply CentreGBUnited Kingdo

ETHICS AND EDUCATION: TOWARDS A REORIENTATION OF VALUES IN TERTIARY INSTITUTIONS IN NIGERIA

Moral maturity is a mark of human development and the moral development of the citizens of every nation must precede other aspects of development otherwise the process of development would be obstructed by immorality of the citizens. In the same vein, any education that is devoid of morality is incomplete, meaningless and harmful to both the individuals who acquire it and the society in which they live. This paper is therefore, a critical examination of the role of ethics or morality in education. Through the historical and analytical methods, the paper discovers that there is presently a dearth of moral probity in our educational system. It then advocates for a re-orientation of values in our tertiary institutions through a re-introduction of moral education in the teaching curriculum of every tertiary institutions in Nigeria.  The paper recommends that Nigeria should get her priorities right by giving primacy to morality in her educational and developmental programmes

A proactive fault tolerance framework for high performance computing (HPC) systems in the cloud

High Performance Computing (HPC) systems have been widely used by scientists and researchers in both industry and university laboratories to solve advanced computation problems. Most advanced computation problems are either data-intensive or computation-intensive. They may take hours, days or even weeks to complete execution. For example, some of the traditional HPC systems computations run on 100,000 processors for weeks. Consequently traditional HPC systems often require huge capital investments. As a result, scientists and researchers sometimes have to wait in long queues to access shared, expensive HPC systems. Cloud computing, on the other hand, offers new computing paradigms, capacity, and flexible solutions for both business and HPC applications. Some of the computation-intensive applications that are usually executed in traditional HPC systems can now be executed in the cloud. Cloud computing price model eliminates huge capital investments. However, even for cloud-based HPC systems, fault tolerance is still an issue of growing concern. The large number of virtual machines and electronic components, as well as software complexity and overall system reliability, availability and serviceability (RAS), are factors with which HPC systems in the cloud must contend. The reactive fault tolerance approach of checkpoint/restart, which is commonly used in HPC systems, does not scale well in the cloud due to resource sharing and distributed systems networks. Hence, the need for reliable fault tolerant HPC systems is even greater in a cloud environment. In this thesis we present a proactive fault tolerance approach to HPC systems in the cloud to reduce the wall-clock execution time, as well as dollar cost, in the presence of hardware failure. We have developed a generic fault tolerance algorithm for HPC systems in the cloud. We have further developed a cost model for executing computation-intensive applications on HPC systems in the cloud. Our experimental results obtained from a real cloud execution environment show that the wall-clock execution time and cost of running computation-intensive applications in the cloud can be considerably reduced compared to checkpoint and redundancy techniques used in traditional HPC systems