PROFESSIONAL DEVELOPMENT OF CATALOGUERS IN ELECTRONIC ERA IN ACADEMIC LIBRARIES IN SELECTED PRIVATE UNIVERSITIES, OSUN STATE

Abstract This paper examines professional development of cataloguers in electronic era in academic library in selected private universities, Osun state. The research was necessitated by the postulation that cataloguers competency depend on their professional development. Two research questions were drawn and the population of the study was made up of 8 cataloguers. Data was collected through questionnaire. The descriptive survey research method was adopted in the study. Findings revealed that cataloguers are faced with lack of organizational sponsorship to conference, seminar and workshop; it was shown that, they have challenges on the job training. The study further revealed that cataloguers required adequate knowledge, skills and competence needed in the section to perform effectively and constant update in their professional training and development program through attendance of courses, workshops, seminars, conferences and mentoring programmers in order to cope with the challenges of the electronic era. The study, shows that Academic library management should at least sponsor one cataloguer to conference, seminar or workshop every year to ensure that cataloguers in their institution participate in what is trending in cataloguing and classification to enable them bridge new ideas or tools on what is going on in an electronic era. Older generation of cataloguers should mentor the younger cataloguers on the rudiments of cataloguing, so that manual cataloguing will not diminish. The high cost of program should be checked, so that cataloguers can afford it and be able to attend to the program regularly

HEAVY METALS AND SOME PHYSICOCHEMICAL PARAMETERS IN SOIL OF MAJOR DOMESTIC DUMPSITES IN AKURE TOWNSHIP, ONDO STATE, SOUTH-WESTERN NIGERIA

Heavy metals and soil physicochemical parameters were identified as environmental pollutants in some major domestic dumpsites in Akure city of Ondo state. The pH of the domestic dumpsites ranged from 7.07 to 7.69 with a mean value of 7.33. the organic carbon for the domestic dumpsites ranged from 0.46% to 1.18%, while the organic matter was between 0.80% and 2.05%. the concentration of Zn, Fe, Cu, Pb, Cd, Ni and Cr in µg/g in the domestic dumpsites A and B ranged between 360.00-441, 169.60-547.20, 37.20-102.00, 18.80-80.00, 2.36-2.95, 11.00-19.20 and 18.00- 42.20 all in µg/g respectively. Also, the contamination pollution index of Zn, Fe, Cu, Pb, Cd, Ni and Cr all in the domestic dumpsites A and B ranged between 2.57-3.15, not detected, 1.03-2.83, 0.32-0.94, 2.95-3.68, 0.31-0.55 and 0.18-0.46 respectively. Pearson correlation indicated that Zn, Fe, Ni and Pb were highly significant (p<0.01)

Studies on Thermal Stability, Shelf Life and Electrochemical Measurement of Methanol Extract of Air Dried Alchornea Laxiflora Leaves in Corrosion Prevention

Staff PublicationThe aim of this study was to determine the thermal stability and shelf life of the extract together with the influence of extract concentration, temperature and pH variation of the acidic medium on the inhibition efficiency using 1.0 M Sodium hydroxide. The dried plant samples were ground, sieved using 0.25µm and then extracted with methanol using maceration method. The phytochemical constituents were analyzed using appropriate methods. The phytochemicals detected were: Alkaloid, saponin, flavnoid, tannin, terpenoid, steroid and cardiac glycoside. Weight loss experiment was performed to ascertain the stability and shelf life of the extract at different storage temperature and time respectively while polarization experiment was used to study the behaviour of the extract on mild steel corrosion at varying concentration of the extract, pH and temperature of the acidic media. It was found that the stability of the extract inhibition efficiency was affected by the mode of storage and the inhibition efficiency decreases with increase in storage temperature of the extract. The life span of the extract was found to be 60 days from its production stage, after this, there was reduction in the inhibition efficiency of the extract. Moreso, the corrosion rate of the mild steel in 1.0 M HCl, monitored by electrochemical measurement revealed that the corrosion rate decreases with increase in the pH, decrease in temperature and increase in concentration of the extract in the acidic solution