853 research outputs found

    Penetrating head trauma following gunshot in a nonneurosurgical trauma centre: a case report

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    With the dearth of trained neurosurgeons in sub-Saharan Africa and increasing civilian violence, penetrating head trauma occasionally present to other clinicians for management. The National Orthopaedic Hospital, Enugu is a non-neurologic trauma centre having the south-east, south-south geopolitical zones, and parts of Benue and Kogi states as the catchments area. A retrospective report from the case note of a patient with infratentorial brain injury from a gunshot is presented. He was treated conservatively and had a satisfactory outcome. The follow up is for four years. Adequate resuscitation and monitoring is crucial in successfully managing head injuries

    Mary Mitchell Slessor (1848 – 1915) and Her Impact on the Missionary Enterprise in the Cross River Region

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    Born December 2, 1848 in Gilcomston, Aberdeen, Scotland, Mary Mitchell Slessor, a five foot, red haired Scottish Missionary who pioneered her way into the jungles of Africa was undoubtedly one of the most outstanding missionaries who made tremendous contributions to evangelism, charity work, educational and healthcare services and publicized Nigeria in the map of the world. She faced many challenges living with the villagers, and at times, even had to be a peacemaker between tribesmen. Her work and strong personality allowed her to be trusted and accepted by the locals while spreading Christianity in Nigeria, promoting women’s rights, rescuing unwanted children, protecting native children and died on 13 January, 1915 (aged 66) at Use Ikot Oku, Calabar, Nigeria. Beyond contribution to knowledge this brief work is therefore a legacy of Mary Mitchell Slessor’s contributions to the evangelization of Nigeria and Church History

    Modern Devices/Techniques in the Protection of Transformers

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    The development of modern power systems has resulted in the design of wide range of transformers with sizes from a few KVA to several hundred MVA. Very large transformers are used to step up generation voltage of about 25KV to transmission level, such as 330KV. Various sizes and ratings of transformers are employed to step down this 330KV voltage to 132KV and then to distribution level of 33KV, which is further stepped down to 415V for domestic supply. The effects of thermal stress and electro-dynamic forces in transformers must be reduced as much as possible so as to ensure steady electricity supply. Hence the protection package should be able to minimize the duration of a fault within a transformer. The application and size of a transformer determines the protection package to be applied. Until recently, electro-mechanical relays had been in use in protective equipment because of their simplicity and durability. Nevertheless, they have been replaced by solid-state relays. The rapid progress in electronic devices including the introduction of reliable integrated circuits, logic gates and microprocessors has made it possible to produce equivalent relays using both analogue and digital processing [1]. This paper examines the methods of protecting transformers, applying modern equipment

    Relay Coordination in the Protection of Radially-Connected Power System Network

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    Protective relays detect intolerable or unwanted conditions within an assigned area, and then trip or open one or more circuit breakers to isolate the problem area before it can damage or otherwise interfere with the eective operation of the rest of the power system. It often happens that a substation feeder relay and supply-side relay both trip for the same feeder fault. This occurrence, known as over-trip is undesirable, and is usually blamed on poor relay coordination. The relay and breaker nearest to the point of fault must be able to see the fault and operate before other relays in the system so that healthy parts of the system will not be interrupted. How to achieve this is the subject of this paper

    Gadamer’s Philosophical Hermeneutics: Investigating the Nexus between Culture and African Philosophy

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    This article attempts to uncover a foundational drive in Gadamer’s philosophical hermeneutics and its importance in steeping the tension of the philosophical link of culture and African Philosophy. In his work Gadamer presents culture as the foundation of philosophy. Okere rising from the latter posits that hermeneutics is the mediator between culture and African philosophy. The polemical argument of the rationality of African philosophy though interwoven with skeptical epistemological assumptions which increasingly emphasizes in the ethno decade-long debate is aggregated in mediating stance of hermeneutics as adduced by Okere and other notable African scholars. This article shows that in his most popularity oriented epistemological work, Gadamer did not mute the obstacles that epistemic uncertainty poses to the quest for mere ethno dimension in the light of critical ratiocination in order to avoid acceptance of views without examination .This article pursues this mediating strategy not just for rhetorical but also for a substantive reason on the rational foundation of African Philosophy against the nauseating position that African philosophy is mere cultural beliefs. Keywords: Hermeneutics, Culture and Mediatio

    Stability Analysis of a Three-Phase Solid-State Var Compensator (SSVC)

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    The problems associated with the flow of reactive power in transmission and distribution lines are well known. Several methods of var compensation have been applied in solving these problems.One of the modern devices employed in reactive power compensation is the three-phase solid-statevar compensator (SSVC). The principal component of this device is a three-phase pulse-width-modulated voltage source inverter. A mathematical model of the inverter is derived in d-q referenceframe and then used to examine the stability of the compensator in response to variations in circuit parameters.Keywords: var compensation, inverter, stability, circuit parameters, root locu

    EnuwaJGX: Machine Learning Gene Prediction Software Application Model - An Innovative Method to Precision Medicine and Predictive Analysis of Visualising Mutated Genes Associated to Neurological Phenotype of Diseases

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    This research investigates an aspect of precision medicine related to genes and their association with diseases. Precision medicine is a growing area in medical science research. By definition precision medicine is an approach that allows the selection of treatments that are most likely to help treat patients based on the genetic understanding of their diseases. This approach proposes the customization of a medical model for healthcare, treatment, medical decision making about genetic diseases and develop models that are tailored to individual patient. There are readily available datasets provided by Genomics England related to diseases and the genes that cause these diseases. This research presents a predictive technique that scores the possibilities of a mutated gene causing a neurological phenotype. There are over a thousand genes associated with 26 subtypes of neurological diseases as defined by Genomics England capturing genetic variation, gene structure and coexpression network

    The Implication of the Practice of Afiye (Caste System) on Human Development Among the Yala Communities of Cross River State of Nigeria

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    The practice of Afiye (Caste System) among the Yala communities of Cross River State of Nigeria, settled in Yala Ogoja, Yala Obubra, and Yala Ikom, is an age long practice, which no one today can precisely point to its exact origin. The practice of Afiye and the Ayiwoole (slaves and freeborn), without considering the grave consequences, here analysed as implication of the system. The implication involves the political implication which tends to hinder the political rights of members of this caste, through its social structure. There is also the implication on Human Right, whereby members of this caste are denied freedom of association and movement. There is also social discrimination, which has equally affected their social standing in their different communities, such that they cannot be Ochuole (Traditional Rulers) or be allowed to participate in traditional burial rites of the traditional ruler that is regarded as the father of all. The economic factor is not left out as dispute bothering on land matters are usually and often settled in the palace and since they are the unwelcome species of human beings in the palace, there are left with no other opportunity than to be disempowered. Of course, there is the strained relationship and conflicts between the Ayiwoole and the Afiye, what Ralph Darendorf called the dialectical conflict theory. This has led to under development, Anger, bitterness and uncooperative attitude and indeed suspicion and all manners of negative tendencies among the Yala communities. It is the submission of this paper therefore, that the practice of this caste with its antecedent implications be put to a stop in order to bring about a meaningful development to Yala land

    Students’ Perception of Vodcast and Podcast as Instructional Material

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    The study was conducted to examine students’ perception of vodcast and podcast as instructional material. The study employed a survey research design. The total sample size for the study was two hundred and twenty-five (225) respondents. Data was analyzed and presented using mean statistic and standard deviation. Hypothesis for the study was analyzed using t-test with a p≤0.05 level of significance. Students in the study to a low extent (=1.97) agreed that vodcast and podcast increase productivity, promote creativity and facilitate academic learning. Respondents are of the view that the University of Nigeria, Nsukka postgraduate program is not yet advanced enough to use vodcast and podcast technologies for teaching students (=2.88). Unavailability of technologies had a significant influence on barriers that hinder students from using vodcast and podcast. Based on the findings and conclusion, it is recommended among others, that the University of Nigeria, Nsukka organize a capacity building workshop hinged on the use of top-notch technology for 21st century education; that departments in the university should motivate lecturers to employ technological tools in teaching through incentives as these will encourage every lecturer to key into the move

    The Persistence of the Practice of AFIYE-Caste System in Yala Nation and Modernity

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    The paper presents an ethnographic approach to the study of culture change, here the culture of the practice of Afiye (Caste system) among the Yala communities of Cross River State and why the persistence of such culture by a homogenous community such as the Yala community? The paper further, wonders why after the high status achieved by the Yala people in every facet of life and indeed the influence of factors of change, such as Christianity, globalization, technology and modernity, that the Afiye practice still remained unchanged. It is the discovery of this paper that the factors responsible for the persistence of this practice against all factors of change are anchored on the religious factor, cultural identity, socio-political factors and, economic factors. It is the argument of this paper that instead of the factors above contributing to its persistence, it should be the ready factors to its discontinuity. For the advantages outweigh any given disadvantages. It is therefore the conclusion of this paper that the persistence of this practice be used to abrogate the practice which will in turn leads to an egalitarian Yala society, built on trust, unity and a mutual acceptance of one another, as a people, who indeed appreciate and love themselves as exemplified in their greetings
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