Ladoke Akintola University of Technology

About: Ladoke Akintola University of Technology is a education organization based out in Ogbomoso, Nigeria. It is known for research contribution in the topics: Population & Adsorption. The organization has 2786 authors who have published 3066 publications receiving 36850 citations. The organization is also known as: Oyo State University of Technology & LAUTECH.

Ensuring patients privacy in a cryptographic-based-electronic health records using bio-cryptography

Abstract: Several recent works have proposed and implemented cryptography as a means to preserve privacy and security of patients health data. Nevertheless, the weakest point of electronic health record (EHR) systems that relied on these cryptographic schemes is key management. Thus, this paper presents the development of privacy and security system for cryptography-based-EHR by taking advantage of the uniqueness of fingerprint and iris characteristic features to secure cryptographic keys in a bio-cryptography framework. The results of the system evaluation showed significant improvements in terms of time efficiency of this approach to cryptographic-based-EHR. Both the fuzzy vault and fuzzy commitment demonstrated false acceptance rate (FAR) of 0%, which reduces the likelihood of imposters gaining successful access to the keys protecting patients protected health information. This result also justifies the feasibility of implementing fuzzy key binding scheme in real applications, especially fuzzy vault which demonstrated a better performance during key reconstruction.

Quality of optimized biogas yields from co-digestion of cattle dung with fresh mass of sunflower leaves, pawpaw and potato peels

Abstract: Conversion of wastes to energy needs serious attention to boost energy supply and reduce environmental pollution. Biogas yields were obtained from co-digestion of cattle dung with sunflower leaves,...

Autopsy-certified maternal mortality at Ile-Ife, Nigeria.

Abstract: AIM Maternal mortality is a major health problem, especially in Nigeria, where accurate autopsy-based data on the prevalent causes are not readily available. The aim of this study was therefore to accurately determine the causes of maternal death as seen in a tertiary health facility in Nigeria. MATERIALS AND METHODS This was a descriptive, retrospective review of the postmortem autopsy findings from cases of maternal death at the Obafemi Awolowo University Teaching Hospitals Complex, Ile-Ife, Nigeria over a 5-year period. Analyses were performed for differences in proportions using PEPI computer programs for epidemiologists (P is significant at <0.05). RESULTS A total of 84 cases of maternal deaths were used for the study. Approximately 71.4% of the maternal deaths were due to direct causes and 28.6% were due to indirect causes. The mean age at the time of death was 27.9±7.5 years. Overall, the three leading causes of death were obstetric hemorrhage (30.9%), complications of abortion (23.8%), and nongenital (nonobstetric) infections (14.2%). Of the direct causes of maternal death, obstetric hemorrhage (43.3%) was the leading cause, with postpartum hemorrhage accounting for most (65.0%) of such deaths; other causes included complications of unsafe induced abortion (33.3%) and of labor (11.7%). Of the indirect causes, nongenital infections (50.0%), anemia (25.0%), and preexisting hypertension (20.8%) accounted for the majority of the maternal deaths. There was disparity between the clinical and autopsy diagnoses in 34 of the 84 cases (38.1%). CONCLUSION The leading causes of maternal death in this study are similar to those in other developing countries. Autopsy is an invaluable tool in accurately determining the cause of maternal death.

Optimization of media components and fermentation conditions for citric acid production from sweet potato peel starch hydrolysate by Aspergillus niger

Abstract: This study investigated sweet potato peel waste as the main carbon source and determine the effect of media components and operating conditions on citric acid (CA) production by Aspergillus niger under submerged fermentation. The sweet potato peel waste is of low-cost readily-available and serve as hydrolysate for CA production. Two sets of experiments were performed using experimental design technique. The first set was designed using a low resolution 2-level factorial which was deployed for parameter screening. The other set of experiments was designed using 3-level design algorithm and was deployed for model development and optimization. The results from parameter screening showed that carbon source (CS), nitrogen concentration (NC), fermentation time (FT) and pH were the “heavy hitters” with significant impact on CA production. The developed model is predictive (R2 = 0.948) with optimum CA (3.22 mg/mL) obtained at CS (97.25%), NC (1.25%w/v), FT (7 days), and pH (6.5). This setting was validated experimentally and resulted in CA yield of 4.36 ± 006 mg/ml, representing a 135%-fold increase over the predicted yield. The present investigation shows that sweet potato peels hydrolysate is a viable and sustainable substrate for CA production.

Burn injuries in a young nigerian teaching hospital.

Abstract: A total of 36 patients were seen and managed at the Ladoke Akintola University of Technology Teaching Hospital, Osogbo, Osun State, Nigeria, over a period of five years (2000 to 2004). There were 28 males and 8 females (male to female ratio, 3.5:1). The ages ranged from 1 to 46 yr (mean, 14.5 yr). The burn surface area percentage ranged between 2.5 and 70% (mean, 22.9%). Flame constituted the commonest source of injury (66.7%). Other agents were scalding (9 patients = 25%) and electrical burns (3 patients = 8.3%). The sources of flame burns were kerosene lantern/stove explosion (7 patients = 29.2%); petrol explosion (7 patients = 29.2%); road accidents followed by an explosion (3 patients = 12.5%); one case each (4.2%%) involving ethanol explosion, gun powder explosion, firewood, a lighted candle that ignited furniture and then a whole house; and other unexplained sources (3 patients = 12.5%). Mortality in this study was 7 cases (19.4%). Death was due to acute respiratory distress syndrome in one patient, sepsis in five, and tetanus infection in one. We conclude that most of the injuries were preventable. Education regarding refuelling a lighted lantern/stove, discouraging the storing of petrol in the house, and driving with care will reduce the number of accidents and subsequent possible burn injuries. Children should be monitored carefully to prevent scalding from hot water and food.