Structural Trends of Ijeda-Iloko Area as Interpreted From Total Component of Ground Magnetic Data

Ground magnetic survey of Ijeda and Iloko towns in Oriade Local Government Area of Osun state Southwest Nigeria was performed. The study was carried out using high resolution proton precision geometric magnetometer which involves the use of Total Component of the ground magnetic anomaly data running through traverses 7, 8, 9 and 13. This research focuses on delineation of faults in this part of the highly mineralized Ilesa schist belt. The field data was qualitatively and quantitatively interpreted and the results gave values for the Total component measurements of ground magnetic anomaly which varied between a minimum negative peak value of about -330 gammas and a maximum positive peak value of about 80 gammas. Depth to the basement rock was estimated using half slope method. Information on wide range of magnetic intensities over the different rock types in this area were obtained from the quantitative interpretation using linear trends. The results generated were used to delineate rock boundaries, bedrock topography major and minor faults

HORIZONTAL COMPONENTS OF GROUND MAGNETIC STUDIES OF IJEBU-JESA AREA SOUTH-WESTERN NIGERIA

The ground magnetic studies of Ijebu-jesa town in Oriade Local Government Area of Osun State Southwestern Nigeria was carried out which involves the use of Horizontal Components (i.e. horizontal magnetic intensities and horizontal magnetic gradients). The field data was qualitatively and quantitatively interpreted and the results give values for horizontal magnetic intensity that varied between a negative peak magnetic anomaly of about -800 gammas to a positive peak magnetic anomaly of about 1800 gammas. While the horizontal gradient give values that varied between a negative peak magnetic anomaly of about -500 gammas to a positive peak magnetic anomaly of about 500 gammas over the different rock types in this area. The magnetic values obtained from the linear trends analysis varied between a negative peak magnetic anomaly of about -100 gammas to a positive peak magnetic anomaly of about 120gammas. Depth to the basement rock was estimated using half slope method. The results generated were used to construct geomagnetic sections from where rock boundaries, bedrock topography major and minor faults were delineated

Ethnomedicinal Survey of Botanicals Used in Treating Sexually Transmitted Diseases in Ekiti State, Nigeria

This paper focuses on the botanicals used in the treatment of sexually transmitted diseases in Ekiti State, Nigeria. The authors identified 49 plants belonging to 30 angiosperm families that were being used by the natives of Ekiti State for the cure of sexually transmitted diseases. Most of the wild species were rare or not very abundantly distributed in nature. The proportion of cultivated to wild species, however, was relatively low. Species that were under cultivation by the natives were being grown largely for reasons other than medicinal value. The methods of extraction were mostly predatory and annihilative. Considerable proportions of the identified botanicals were obtained from the forest. The need for the conservation of most of the species cannot be over emphasized. Strategies towards the attainment of this goal were proposed

Ethnobotanical Studies on Bamboo (Bambusa vulgaris) in Ekiti State, Nigeria

The study identified the factors responsible for the decrease in the number of Bamboo individuals in Ekiti State, Nigeria from the relevant stakeholders. Reasons attributed to this decline included sporadic increase in the rates of deforestation, construction and burning activities. Strategies proposed, by the respondents in the study area, that could conserve the species were documented

Investigation of Extremely Low Frequency (ELF) Hot Spots in the College of Science and Technology, Covenant University, Ota

The presence of Extremely Low Frequency (ELF) from electronic devices such as personal computers, laboratory equipment and television sets in selected laboratories and offices at the College of Science and Technology Building, Covenant University, Ota, Nigeria was characterized using an ELF Detection Meter. The study revealed that exposure to ELF fields could be controlled to the minimum depending on the awareness of the occupant. As with all electromagnetic fields, the ELF field decays rapidly with distance from source or hot spots. The average observed value of ELF in the offices ranged from 3.5 to 5.0 mG. A significant hot spot with ELF of approximately 10 mG in an office was detected close to the magnetic board fixed on the wall. From the results, the maximum ELF fields of between 30–50 mG were observed close to some electronic devices, while other areas recorded significant ELF fields of between 4 mG and 25 mG due to the presence of electrical internal conduit wiring with no electrical gadgets in their vicinities. Minimum ELF fields of between 0.1 mG and 0.5 mG were observed in one of the locations surveye

Stability of Stopped thyroid hormones in Enzyme Linked Immunosorbent Assay

Power outage is a common feature in the third world countries. Oftentimes after the preparation and completion/ and stopping of reaction in tube method of Immunometric assay there is power outage.  One wonders what should be done with the set up. How long can the stopped reaction wait before reading and the result will be useful? This aspect is not included in the method sheet. To answer this question, the  test is done as usual but the readings were taken at 0, 2hours, 1 day, 2 days, 3 days, 4 days and 5 days. The results were compared. It was evident that when read within two hours, the result remain unchanged but after 24hours the slope is depressed and all the readings wane. Effort should be made to take the readings within 24hours for reliable result. Keywords: Stability, thyroid hormones, hormonal assay

Allelopathic Effects of some Crop Residues on the Germination and Growth of Cowpea (Vigna unguiculata L. Walp.)

The allelopathic effect of aqueous extracts from sorghum and rice husk on germination and growth of cowpea was investigated. The results showed that the extracts brought about considerable inhibition in the germination of cowpea seeds and in the growth of its radicle and plumule. The germination percentage in the extract-treated seeds decreased with the increase in the concentration of the extracts thus indicating that the degrees of inhibition were concentration dependent. It was apparent that sorghum extracts had more inhibitory effects on cowpea seeds than those from the rice husks. In sorghum extract- treated seeds, radicle growth was observed clearly at 48hrs of the experiment whereas radicle growth was recorded at 24hrs experimental time in the rice husks extracts. Also in sorghum extracts, plumule growth occurred at 72hrs of the experiment whereas plumule growth was recorded at 48hrs experimental time in the rice husks extracts treated seeds

Geophysical Investigation of Some Flood Prone Areas in Ota, Southwestern Nigeria

Thirteen shallow vertical electrical resistivity soundings using Schlumberger array were conducted within the study area. The aim of the study was to investigate the nature of the subsurface in some flood prone areas within the study area by determining the lithology and the corresponding inverse model resistivities at the depths investigated and hence the cause of flooding in the area during the wet season. The resistivity sounding data were collected along seven traverses using a Campus Tigre terrameter. The observed data were interpreted quantitatively using curve matching and computer assisted iteration method. The results of the inversion show a lithology that comprises of the top soil and a paralic sequence of sand and lateritic clay at the depth investigated with varied resistivity and thickness. The flooding is thought to be due to the shallow lateritic clay layer at an average depth of 5.2 m with thickness ranging from 14.5m to 31.8m at the various points of investigation and the shallow depth of the water tabl

Insight into the electrochemical performance of heavy metal-free quantum dots in different buffered ferricyanide/ferrocyanide redox systems

The ferricyanide/ferrocyanide K3[Fe(CN)6]/K4[Fe(CN)6] redox couple is a widely utilized redox probe in electrochemistry. Buffering the K3[Fe(CN)6]/K4[Fe(CN)6] system has become one of the ways to generate improved electron transfer rates and stable electrochemical systems. In recent years, semiconductor quantum dots (QDs) have gained popularity as nanotags in electrochemical applications. Herein, we report on the comparative electrochemical behaviour of cadmium-free AuZnFeSeS quantum dots (QDs)-modified screen-printed carbon electrode (SPCE) in different buffered K3[Fe(CN)6]/K4[Fe(CN)6] electrolyte solutions using voltammetry and electrochemical impedance spectroscopy (EIS) techniques. Our results showed that the QDs/SPCE exhibited faster electron transfer rates, lower energy barrier and lower charge transfer resistance (Rct) in the studied buffered electrolyte solution

Determination of Protein Content of Some Different Types of Species of Mushroom in Owo Local Government Area of Ondo State, Nigeria

The wild edible mushrooms are one of the most important non-timber forest products. Due to its vigorous growth in the rainy season, delicious taste and nutritional value, the protein content of three species of mushrooms, namely Termitomyces robustus, Lentinus squarrosulus Mont and Lentimula edodes, was determined. The highest amount of protein was found in Lentinus squarrosulus Mont (37.80mg/ml), followed by Termitomyces robustus (33.00mg/ml) and least found in Lentimula edodes (17.00mg/ml)