Ti_1-xAl_xN coatings were deposited using separate Ti and Al targets by reactive RF / DC magnetron co-sputtering on Si and stainless steel substrates. The phase, microstructure, surface roughness and chemical compositions were investigated.  The thickness of the coatings were found to be in the range 450 ~ 650nm and possess grain sizes less than 10nm. The roughness of the coatings was found to decrease with increasing sputter power. The compositional analyses of the coatings revealed that with increasing power the ratio of Al to Ti varies. The corrosion behaviour of the films in 3.5% NaCl solution was investigated using electrochemical technique.

Chitosan nanoparticles loaded by ketoprofen have been prepared by sonication and centrifugation methods. Preliminary tests have been carried out by conducting optimization condition of sonication including amplitude and sonication time. Turbidity data showed that the optimum condition for sonication on amplitude and  sonication time at the percentage of 20% and at 60 minutes, respectively. PSA analysis indicated that decreasing of turbidity number of emulsion was also reduced particle size. PSA results showed that all formulas have  a uniform particle size up to 100% with polydispersity index was below 0.3. B formula has  smaller particle size and highest entrapment efficiency value than two formulae others, 222,1 nm and 87,463%, respectively. SEM and XRD analysis showed that chitosan nanoparticles loaded by ketoprofen have spherical form and semi crystalline properties, respectively.

Traditional herbs are the purest form of natural medicine and they all have therapeutic values, whether important or not. This research work involves formulation of vaccines or drugs from traditional herbs extract for HIV- Immune boosting characteristics. Five laboratory animals of different weights were infested with HIV virus and left for two weeks. After which five different compositions of four plant extracts were inoculated to these animals according to their corresponding numbers for four weeks. The weight and CD4 counts of the animals were taken before infection and four weeks after inoculation. Animal sample 5 showed a more responsive attitude than the other four. This indicates that extract composition 5 is a more potent HIV-Immune booster.

The investigation on the saponification of treculia africana (breadfruit) oil via a locally obtained alkaline (Ngu), an extract of the burnt females inflorescence of oil palm bunch using kinetic approach proved successful and showed a high degree in the possibility of producing good quality toilet soap. The result obtained revealed that the reaction is essentially first order with respect to the caustic alkaline (KOH) derived from Ngu. The reaction constant averaged to 0.0695 minutes^-1 and reaction tended to completion on the averaged of 30 minutes with a half life of 9.96 minutes. The reaction rate was substantially influenced by the various concentrations of the Ngu as the  saponification time-rate approached maximum with the highest concentration of Ngu. The soap produced from the sample was milky and soft and lathered well. The texture can be improved or hardened if necessary.

The Back Propagation Neural Network algorithm was validated using hypothetical data from fifty patients with symptoms of Stroke. The data set was divided into training set and test set while the validation data set were chosen randomly from the testing data. Forty-two (42) data set were used for the training set while eight data set were used for the test. Four data were chosen from the test set and used for the validation. A MATLAB program was written for training, testing and validation of the neural network. Three different architectures with 5, 10 and 20 hidden neurons in the network architecture were tested to avoid overfitting and inaccuracy after which neural network with 10 hidden neurons was chosen as the best architecture. The training error converged to 0 after 50 iterations with architecture of 10 hidden neurons while convergence was almost achieved after 100 and 1000 iteration steps with 5 and 10 hidden neurons respectively. The ANN was trained and tested after optimizing the input parameters using Genetic Algorithm, the overall predictive accuracy obtained for the thrombo-embolic stroke was 90%.

In this paper, the concept of semi-compatibility and occasionally weak compatibility in Menger space has been applied to prove a common fixed point theorem for six self maps. Our result generalizes and extends the result of Pathak and Verma [9].

This study was conducted in Akure South Local Government of Ondo State to assess food consumption and nutritional status of under five children. A total of 355 children were systematically selected from a sample frame consisting of listed households in the seven wards of Akure South Local Government Area. Data were collected using a pre-tested, semi-structured questionnaire to obtain information on subject socio-economic status, hygiene practices, breastfeeding practices and clinical observation for signs of malnutrition. Data were analyzed using SPSS version 17 and ENA SMAT softwares. The prevalence of stunted, wasted and underweight children was 12.5, 14.8, and 8.5% respectively. A few of the children (2.6%) had a MUAC less than 12.5cm while 3.4% had between 12.5-13.5cm (Acute malnutrition) and 94.1% had MUAC above 13.5cm. A clinical symptom of Protein Energy Malnutrition (PEM) was observed in 2.3% of the children while eye (conjunctiva) pallor was noticed in 9.3% and pallor (palm) in 7.0% of the children. Mothers’ education affected the health status of the children; 81.8% of the mothers with no education did not give colostrum to their children, 16.7% of the mothers exclusively breastfed and majority (60.0%) of those that did not exclusively breastfeed had little or no education. Household size had a negative correlation with the nutritional status of the children (underweight) (r = -0.14; p<0.05). Household income was positively correlated with nutritional status of the infants (Stunting) (r = 0.18; p<0.05). There was a positive correlation between Mothers’ education and hygienic practice (food preservation) (r = 0.12; p<0.05). Level of mothers education was positively correlated with nutritional status of the children (stunting) (r = 0.23; p<0.05). There was a positive correlation between infants nutritional status (under-weight) and hygienic practices (food preservation) (r = 0.15; p<0.05). The result shows that more nutrition education is needed on the part of the mothers so that the poor nutritional status of the children can be improved, to ensure healthy living for both mothers and their children. 

Vertical electrical sounding (VES) using Schlumberger electrode configuration was carried out at Osubi (Ugolo) and Orogun areas of Delta State. A total of ten VES were carried out in the two communities with 6 VES at Osubi and 4 VES at Orogun with maximum current electrode separation of 500m. The equipment used for acquiring data is the ABEM SAS 1000 Terrameter with an inbuilt booster. The data obtained were interpreted using computer software WINRESIST. The interpretation processes were carried out firstly by curve matching and computer iteration where the geological model parameters and curves were obtained. Five geological layers were observed within the two communities. The ranges from topsoil, coarse grained soil, clayey sand, clay and fine grained soil. For Osubi, the water bearing zone depth ranges from 29.7 to 42.2m and resistivity ranges from 366.1Ωm. to 3304.5Ωm, but good portable water is observed at a depth of 30 to 39m while for Orogun location, the depth ranges from 13.6 to 54.6m, and resistivity ranges from to 101.3Ωm  to 6224.0Ωm but for VES 2 of Orogun location, water bearing zone is at the range of 20m to 42m. For this location, good portable water is observed at the depth of 38.0 to 39.0m. The study shows that locations 3 and 6 of Osubi and locations 1 and 4 of Orogun are the best for sitting boreholes since they have higher resistivity indicating low corrossivity and salinity with higher transmissivity.

Vertical electrical sounding (VES) using Schlumberger electrode configuration was carried out at Ukwu-Nzu and Ubulu-Uku both at Aniocha North Local Government Area of Delta, Nigeria. The survey was aimed at investigating kaolin deposit within the two communities. A total of 12 VES stations, six from each community uniformly distributed within the surveyed areas were carried out. The data from the field was interpreted using the conventional curve matching and computer iteration techniques where the geoelectric model parameters and curves were obtained. The results reveal four to eight distinct geoelectric layers namely topsoil laterite, kaolin, sandy clay, medium grained sand, clay, gravel and coarse gravel, with their various resistivities and thicknesses.

The investigated areas were divided into four rectangular and four square blocks for Ukwu-Nzu and Ubulu-Uku respectively. The analysis shows that reserve of kaolin deposit was established as 401,235.84 tonnes and 69535.44 tonnes. The volume of the overburden to be excavated was estimated as 33720.00m³ and 21,384.00m³ for Ukwu-Nzu and Ubulu-Uku respectively. The quantity of kaolin deposits in these two communities may not be enough for commercial purpose but could be mined locally for local advantage.