Global

This paper deals with the global existence, uniqueness and boundedness of the weak solution for the chemotaxis system (P) defined as The system (P) is under homogeneous Dirichlet boundary conditions in a convex smooth bounded domain with smooth boundary Based on method, Lax -Milgran’s and maximum principle, a prove of the existence and uniqueness of a global solution for the system (P) is determined. Moreover we show that the unique solution is positive.
In this research work the level and distribution pattern of the metals: Ni, Cr, Mn, and Fe were determined in soil samples collected within Maiduguri Metropolis. Samples were collected from places of high anthropogenic activity such as automobile maintenance workshop (AMW), Car park or Bus stops (CP), and the highways (HW) to places of low activity the Residential areas (RA) at the depth of 5 to 15cm. To avoid washing away of the metals by rainfall, all collections were done during the dry season in the month of September/October 2012 to April/May of the following year 2013. These periods are period of incessant wind and sandstorm marked with low or no rainfall in this part of the country (far north-eastern part of Nigeria). Soil samples were analyzed using ICP-OES following digestion with aqua-regia and the results shows that; the levels; 14.48, 8264.17, 24.26, and 84.75μgg-1 were observed in the samples from AMW for the metals: Ni, Fe, Cr, and Mn respectively. The RA has the levels; 4.96, 804.50, 4.56, and 13.93 μgg-1 for the metals; Ni, Fe, Cr, and Mn respectively. The HW and CP had level of the metals; greater than the RA but less than the AMW. The high concentration of the metal (Fe) in the soil suggests that this metal could be mainly of natural origin with adequate contribution from anthropogenic influences. The concentrations of the metals was found to decrease with increasing distance from the places of high anthropogenic activity AMW, HW, CP to the places of less anthropogenic activities the RA. The distribution pattern of metals; Ni, Cr, Fe, and Mn in Maiduguri Metropolis could be arranged in the order; AMW > CP > HW > RA. This trend further confirms that automobiles are the main contributor of the heavy metals in the urban environment.
Ghana grew out of formal music education introduced into Ghana’s educational system during the colonial period. Western music and its stylistic features of compositional techniques were then espoused and put to use. Conversely, this comprehensive espousal of foreign traditions impeded the very existence of indigenous Ghanaian cultural practices – especially music. The early twentieth century saw the nation’s musical icons like Ephraim Amu, Nketia among others, initiating a crusade to resuscitate Ghanaian indigenous musical traditions. Through a critical analysis of a representative work, ‘YɛdzeWokɛseyɛmaW’(We ascribe to your greatness) the authors introduce one “contemporary” Ghanaian composer, George Essilfie Mensah, whose pieces demonstrate bimusicality, a syncretism of traditional Ghanaian and western musical styles which presents his works appreciating to Ghanaian Choral music performers. The paper seeks to serve as model for the study of a blend of traditional and western elements in choral music.
Automated Manual Transmission (AMT) has been the best competitive solution to address the problem of increasing fuel prices and to meet the emission norms. Automotive world today mostly uses Automated Manual Transmission (AMT) based on hydraulic actuators. Hydraulic actuators are costly, complex in design, bulky and invite drastic design changes in existing gearbox. AMT system which is low cost and fuel efficient has been developed using DC motor controlled electro mechanical linear actuators. The AMT system consists of three electro-mechanical linear actuators, one for clutch and two for gear shift actuations which are controlled by Transmission control unit (TCU). The wear of synchronizers can be easily taken care by reprogramming the stroke lengths of linear actuators. This system can be retro fitted in vehicle with existing manual gearbox and involve minor design changes. The focus of paper is to introduce the system developed.
This study was carried out to examine the Relationship between Principals’ Managerial Skills and Administrative Effectiveness in Secondary Schools in Oyo State, Nigeria. The researcher adopted a correlation survey research design. Simple random sampling technique was used to select twenty (20) secondary schools. In each of the school, 10 teachers were selected. On a whole, 200 teachers served as subjects for this study. A researcher- designed questionnaire titled: “Principal Managerial Skills Questionnaire” (PMSQ) was used to elicit relevant data for the study. To ascertain the validity of the instrument, content validity was adopted. Also, the reliability co-efficient of the instrument was obtained through test-re-test method and the co-efficient of 0.65 was obtained. Four research hypotheses were formulated to guide the study. Thus, Pearson Product Moment Correlation Statistics was used to test the research hypotheses at0.05 significance level. The findings revealed that there was significant relationship between principals’ managerial skills and administrative effectiveness (Cal. Rvalue= 0.246> critical r-value = 0.148).
Academic achievement of students especially at the secondary school level is not only a pointer to the effectiveness or otherwise of schools but a major determinant of the future of youths in particular and the nation in general. The medium through which the attainment of individuals and the nation’s educational goals can be achieved is learning. Learning outcomes have become a phenomenon of interest to all and this account for the reason why scholars have been working hard to unravel factors that militate against good academic performance. The purpose of this study was to investigate the class size and school climate as correlates of secondary school students’ scholastic achievement in Itesiwaju Local Government Area of Oyo State, Nigeria. Descriptive research design was used in the study. Six hundred respondents were selected from selected secondary schools in Itesiwaju Local Government Area of Oyo State, Nigeria. The respondents were measured with relevant standardized scale (instruments) which include class size scale, school climate scale and student performance scale with strong reliability coefficient and the data obtained was analyzed using Pearson Product Moment Correlation (PPMC) statistical analysis of the Statistical Package for the Social Science (SPSS). Two research hypotheses were raised and answered in the study. The result showed that there was significant relationship between the class size and secondary school students’ scholastic achievement (r= .883; P<0.05) and there was significant relationship between the school climate and secondary school students’ scholastic achievement (r= .755; P<0.05). On the strength of these findings, it was stressed and advocated the need for the public and private schools to develop moderate and appropriate class size for the student in the school and that they should make the school climate and environment conducive for the students’ scholastic achievement and overall development in the school. This will
The demand for contemporary procurement systems posea challenge to contractors. Yet, no study has been conducted on Nigerian indigenous contractors (NICs’) involvement and performances in construction procurement systems. This research therefore sought to investigate NICs’ involvement and performances in construction procurement systems. Questionnaires were administered to indigenous contractors and the data obtained were analysed forreliability and significance tests, as well as descriptive statistics. Subsequently, collective case study was used to probe the questionnaire responses. Result reveals that: public and private clients involves NICs’ in traditional and non-traditional procurement system; public clients procure 75% of it projects through the tradititional systems, while private clients procure 78-100% of it projects through non-traditional systems; NICs’ performances record high rates of time overruns (traditional: 34-146%; non-traditional: 45-60%) and cost overruns (traditional: 35-47%; non-traditional:31-36%). The research recommends NICs’: apply project management techniques; employ competent personnel and embark on continuous training; invest in knowledge management and; clients and consultants adheres to project management procedures.
While domestic violence occurs in all demographical realms (races, ethnicities, classes, educational levels), research has been limited regarding wealthy batterers. Although domestic abuse is more visible in lower-class communities, abuse in high socio-economic classes remains hidden. Qualitative data from 12 survivors of wealthy and/or affluent batterers defined asupper middle class or upper class examines perspectives of victims of wealthy batterers to investigate if and how such victims face injustices due to the batterer’s wealth and prominence in the communities in which they live. As additional research is conducted on wealthy batterers, police, prosecutors, and judges may provide better treatment and protection, as they too, will become better prepared in dealing with wealthy and powerful batterers and minimize injustices or prejudice to toward the victims.
Chronic Suppurative otitis media is a long standing inflammation of mucoperiosteum of middle ear cleft. It is associated with intermittent, continuous, mucopurulent or purulent ear discharge, hearing impairment and tympanic membrane perforation. C.S.O.M. was defined by task force of Fourth International Symposium of otitis media held in June 1987in Bal Harbour, Florida as the condition “refer to a chronic discharge from middle ear through perforation of tympanic membrane.”It usually leads to irreversible pathological changes. It is slow and insidious in nature. It is capable of causing irreversible sequel and fatal intracranial complications when medical and surgical inter venations are delayed. It is commonest cause of hearing impairment. It is often unnoticed (Zelhius et al1940).Presence of fluid attenuates sound transmission which may result in hearing loss (Paparella 1986). Chronic suppurative otitis media is a global disease. It is one of the important health problems in our country. Serious complications may arise from it. It is seen in all the continents of world having different environmental and socio-economic background. It is more prevalent in developing countries. Poverty illiteracy, crowding, malnutrition are root factors for the development of Chronic Suppurative otitis Media and a large group of society are suffering from it. The morbidity and mortality associated with otitis media is a really a challenge for health care systems. Surprisingly there are very few studies done in India to know the burden of disease on the society. This is a small attempt to peep into magnitude of problem, where in school going children in Wardha District are studied.
This article discusses international cooperation in science and technology (S&T), analyzing crucial contemporary issues, as well as Brazilian-specific issues, based on the literature of the area and concrete examples of the field. It presents concepts, main terminologies and typologies, with contributions from specialists in different periods for the theme. Furthermore, it introduces a reflection on technique and human nature, exploring the vectors of the scientifictechnological cooperation and the technical cooperation. The paper also provides a short historical overview of international cooperation, notably in the periods separated by the Cold War. Through recent instances, it outlines key issues of international cooperation in S&T and the reality of Brazil with respect to the powerful tool of foreign governmental policy.