Embryogenesis of Heterobranchus longifilis (Curvier and Valenciennes, 1840)

Studies on development of H. longifilis (Curvier and Valenciennes, 1840) were conducted at a temperature of 25EC ( 1Ec) in aquaria tanks continuous development were monitored with the use of wild Heerbrugy photomacroscope and length of yolk and larva were monitored using Stereo Olympus microscope with ocular micrometer. The division into animal and vegetal poles was observed 22 minutes after activation. The first cleavage occurred 65 minutes after activation while the second division which was perpendicular to the first line of division occurred 74 minutes after activation. This was quickly followed by the third and fourth cleavage at 80th and 82nd minutes after activation respectively. Morular stage was reached at 4 hours 20 minutes with formation of optic bud at 14 hours 35 minutes. (DBO) Developing embryo hatched after 27 hours of activation at a mean length of 6.63 and mean yolk length of 2.17. Yolk size decrease at an average rate of 38.5 % till the 5th day of total absorption. Growth of larvae proceeded faster in tail-anus region than in anus-snout portion of the body. The rate of yolk absorption and larva development (survival) as monitored in this work gives important information in Research and development programme for H. longifilis larva - an important aspect of Research development and implementation of appropriate technologies in small scale fisherie

Spatial Scales and Measurement of Housing Values in Nigeria: The Case of Metropolitan Lagos Aluko, O. 27 – 38

This research paper tries to answer the questions that, can heterogeneous zones be grouped to produce spatial markets? And are the submarkets produced meaningful geographically? The study shows that the use of small geographical scale helped to identify similar zones and neighbourhoods that have the same housing values and socio-economic characteristics. This is unlike some of the previous studies that combined wider areas together and so failed to identify spatial submarkets. Four different geographical scales were examined to determine the level of disaggregation of data, and the highest level of disaggregative data occurs where cities are divided into small areas by zones. This study utilized both secondary and primary sources of data. The study is based on data collected from sixteen Local Government Areas consisting of 53 residential zones in metropolitan Lagos. Out of the total number of 135,820 properties, a size of about 1% (1,500) was randomly selected. The hypothesis was tested using a combination of analysis of variance, multiple regression model, expansion method and the non hierarchical technique of grouping. The variations in house values by zones are more distinct than house values for communities and local governments that bear the same name. The grouping of the zones with similar house values also helps to identify housing submarkets that exist in the study area. The submarkets have variations in housing values that conform to the socio-economic characteristics of the households.Key words: Spatial scales, housing values, metropolitan Lagos

Functionality of the Town Planning Authorities in Effecting Urban and Regional Planning Laws and Control in Nigeria: The Case of Lagos State

Any Societies that lack laws and order are doomed to chaos and failure.Any Society with law and order in place but lacks effective implementation are also vulnerable to chaos and crises. Planning Laws and Ordinances are in place to control and regulate development and also to maintain perfect health of the society through their effective implementation. This paper examines the planning laws and ordinances available in Nigeria, with specific reference to the new Lagos State Urban and Regional Planning and Development Law 2010, the types and levels of the Planning Authorities and Agencies responsible for theimplementation of the laws. It also appraises their activities so far in thearea of implementation, their challenges and lastly, makes recommendation for improvement

Development Control in Lagos State: an Assessment of Public Compliance to Space Standards for Urban Development

Development control as a potent tool for city management ensures that thecontinual growth and management of a city can be such that make fororderliness, improved city image, healthy and aesthetics. It also ensures that the environmental challenges as a result of city growth can be reduced to tolerable levels. In metropolitan Lagos, development control requires special skill as a result of the daily problems the authorities are confronted with, which is attributed to the sheer size and rate of increase of these settlements and the complexities of the tasks involved. The problem ranges from uncontrolled change of use of property, non compliance with space standards and approved design, unguided and ineffective enforcement of building regulations. This paper highlights the meaning, context, relevance and problems associated with development control in Lagos metropolis with reference to space standards under the Urban and Regional Planning Development Law 2010. This submission also contains an assessment of the town planning regulation, level of compliance to building regulation and technical skills of personals monitoring compliance to space standards as specified by Urban and Regional Planning Law Decree 88 of 1992, the Lagos Planning Law of 2005 and under the Urban and Regional Planning Development Law 2010

The Effects of Location and Neighbourhood Attributes on Housing Values in Metropolitan Lagos

The aim of this paper is to analyse and determine the relative roles of location and neighbourhood characteristics in the determination of housing values/prices. In order to achieve this, attempts were made to evaluate the role of location and neighbourhood factors in the determination of house prices; study how house prices / values vary by area; show how spatial variation of the housing attributes leads to the determination of income sub-groups in cities; and determine the extent to which these findings help in the understanding of the structure of the housing market in Nigerian cities. This paper therefore examined the spatial variations of location and neighbourhood attributes on house prices in the valuation zones. The hypothesis tested is that house prices vary by neighbourhood and locational attributes in metropolitan Lagos. The analysis of variance and multiple regression models were used in the analysis. It is concluded that neighbourhood and locational attributes show more importance on house values when smaller geographical housing units are examined.Keywords: Locational attributes, neighbourhood characteristics, house values

Comparative effects of Varying Rates of Moringa Leaf, Poultry Manure and NPK Fertilizer on the Growth, Yield and Quality of Okra (Abelmoschusesculentus L. Moench)

The fertilizer management practices have not ensure the desired improvement in yield for okra (Abelmoschusesculentus L. Moench) due to differences in fertilizer types. The search continues for nutrient sources that would provide adequate nutrition for the crop on the season. A pot experiment was carried out at the Teaching and Research Farm, Ekiti State University, Ado Ekiti, Nigeria to evaluate the growth and fruit yield responses of okra (Abelmoschusesculentus L. Moench) to the application of air-dried milled moringa leaf (MML), poultry manure (PM) and NPK fertilizer. The MML was applied at 400, 800, and 1200 kg/ha; NPK 15-15-15 at 250 kg/ha and PM at 10 t/ha separately and in all possible combinations in completely randomized design in three replicates. The parameters measured were plant height, stem girth, number of leaves, leaf area, number of fruits and fruit weight. The single treatments differed significantly (P = 0.05) with the combinations of the treatments giving better performance. The 800 kg/ha MML + PM treatment gave the tallest plants (103.33 cm) and followed by single application of PM (102.33 cm). The application of 400 kg/ha MML + PM + NPK produced the highest number of fruits but 800 kg/ha MML + PM + NPK gave the highest fresh fruit (42.70 g) and dry fruit (20.50 g) weight. 800 kg/ha gave best growth performance among MML but 1200 kg/ha gave best yield. This suggests that MML can be used as source of nutrients to grow okra

Influence of Socio-psycho Factors on Secondary School Students’ Indiscipline in Ibadan North-East Local Government Area of Oyo State

This study examined the influence of socio-psycho factors on secondaryschool students’ indiscipline in Ibadan north-east local government areaof Oyo State. The act of indiscipline in public secondary schools hasbecome an alarming issue. Indiscipline is an act of behavioural disorderthat is classified as an act of delinquency, like, lying, stealing, playing truant,running away from school and so on. This study investigated the influenceof peer groups, parental influence and influence of society on students’indiscipline among secondary school students. The study adopteddescriptive survey research design. The study samples consisted of ten(10) public secondary schools, three hundred (300) senior secondaryschool students. Questionnaire was developed to collect data.Descriptive statistics such as frequency count, percentage and meanscore were used to answer the research questions, while multipleregression analysis was used to test the hypotheses at 5% level ofsignificance. The findings revealed that the level of parental influence on students indiscipline was high (Mean = 2.94 which translated to 69.7%);peer pressure has positive and significant influence on students’indiscipline among secondary school students (mean = 2.86 whichtranslated to 93.4%). Also, it was revealed from the findings that levelof societal influence on secondary school students indiscipline waspositively high (mean = 2.87 which translated to 86.5%). The combinedinfluence of socio-psycho factors (parental influence, peer pressure andsocietal influence) on secondary school students’ indiscipline was foundto be significant, F(3, 296) = 16.950); P < 0.05. The finding also revealedsignificant relative influence of socio-psycho factors on secondary schoolsstudents’ indiscipline; Parental Influence (â = 0.250, P < 0.05), PeerPressure (â = 0.170, P < 0.05) and Societal Influence (â = 0.160, P <0.05). It is therefore recommended that parents should be united andagreed together to correct their children when they exhibit bad behaviourinstead of indulging them. School administrators should ensure that thestudents have equal opportunity, the act of bullying other students by theprefects or seniors should stop. Also, teachers should correct any strangebehaviour among the students and not indulge them at any point in time

Building consumers’ trust in electronic retail platforms in the Sub-Saharan context: an exploratory study on drivers and impact on continuance intention

Lack of trust can have a negative influence on consumers’ willingness to use electronic retail (e-tail) platforms especially in countries with weak regulations and poor consumer rights. This paper examined factors that can be employed to build consumer trust and continuance intention to use e-tail platforms in Sub-Saharan Africa. Data were collected from 207 respondents and analyzed using structural equation modelling with the PLS software. The results show that information quality, perceived usefulness, hedonic motivation and perceived risk have a significant influence on consumers’ trust in e-tail platforms. The study contributes to the existing body of knowledge that guides efforts for implementation of actions in weak institutional contexts characterized by institutional voids such as those experienced in Sub-Saharan African countries. Finally, the study provides insights that can help managers of e-tail platforms to effectively foster the development of trust in their communities

Effects of Cooperative and Individualistic Instructional Strategies On Students Problem Solving Abilities In Secondary School Chemistry In Ilesa, Nigeria.

This study investigated the relative effectiveness of cooperative and individualistic instructional strategies on students' problem solving abilities in secondary school chemistry. It made use of a 3 x 3 x 2 quasi-experimental, non-randomized factorial design. Two hundred and fifty (250) Senior Secondary two (SS II) chemistry students were purposively sampled from three public secondary schools in Ilesa Local Government Area of Osun State, Nigeria. Two research instruments: Researcher's Instructional Packages for solving Chemistry Problems (RIP) and Chemistry Performance Test (CPT) were developed, validated and used for the study. The reliability of the Chemistry Performance Test (CPT) was determined and found to be 0.62 using the Pearson Product Moment Correlation formula. Five hypotheses were raised and tested using Analysis of Covariance (ANCOVA). Two experimental groups (Cooperative Instructional group, Individualistic Instructional group) and a control group were used. The results of the analysis showed that there was a significant difference in the performance of chemistry students exposed to cooperative instructional Strategy, individualistic instructional strategy and conventional teaching method. Both the cooperative instructional strategy and individualistic instructional strategy improved the performance of the learners. The cooperative instructional strategy was found to be most effective in enhancing better performance of the learners. African Research Review Vol. 1 (1) 2007: pp. 121-13