Determination of Adsorption Isotherm model best fit for methanol leaf extract of Securinega virosa as corrosion inhibitor for corrosion of mild steel in HCl

The adsorption isotherm model best fit of the methanol leaf extract of Securinega virosa as corrosion inhibitor for the corrosion of mild steel in 2 M HCl medium was determined with the assistance of the Adejo-Ekwenchi adsorption isotherm. The corrosion inhibition study was carried out using the weight loss method at the temperature range of 301 K to 313 K.  The inhibition efficiency, %IE, of the extract was found to increase with increase in both concentration and temperature. On the account of, R2 this adsorption process well fitted into Langmuir, Freundlich, Temkin isotherm, Flory-Huggins and Adejo-Ekwenchi models. However, through the parameter b of the Adejo-Ekwenchi isotherm, which clearly shows the adsorption process to be chemisorption, the best isotherm fit for the extract has been resolved to be the Langmuir isotherm and Temkin isotherm models.Â

A Two-Year Review of Medical Admissions at the Emergency Unit of a Nigerian Tertiary Health Facility

The main objective of this study is to describe the spectrum of medical conditions presenting at the emergency department of the Federal Medical Centre, Abeokuta, Nigeria over a two year period. This is a retrospective analysis of a prospectively collected data. Data was collected from the emergency room admission records, patients’ case records, as well as Department of Medicine’s weekly morbidity report .Information collected included patients’ age, gender, date of admission, and clinical diagnoses. All the diagnoses were classified into the medical specialty they belong to as well as into a broad category of infectious and non-communicable diseases. A total of 2377 patients were admitted in the hospital during the period under review. The highest proportion of admissions was is the 30-39 years age group (17.6%), followed by 40-49 years (17.0%) and 20-29 (16.7%) age groups. Infectious diseases accounted for the highest incidence of admissions (1132; 47.6%). This was followed by diseases of the cardiovascular system (414; 17.4%), central nervous (227; 9.5%) and endocrine (193; 8.1%) systems, respectively. The least proportion of admissions was accounted for by dermatological conditions (4; 0.2%). Overall, non- communicable diseases accounted for 1245 (52.4%) of the cases and communicable diseases for 1132(47.4%). Our study shows that non-communicable diseases (NCDs) are more likely reasons for adult Nigerians living in this Nigerian city to present for acute care. It also shows that age of presentation is at the prime of life. It is suggested that efforts should be geared towards control of emerging NCDs as well as control of prevailing common communicable diseases

Malaria parasitaemia among pregnant women in a rural community of eastern Nigeria; Need for combined measures

Malaria in pregnancy is a major contributor to adverse maternal and perinatal outcome. In hyper endemic areas like ours, it is a common cause of anaemia in pregnancy in both immune and non-immune individuals and is aggravated by poor socioeconomic circumstances. The aim of this study is to assess the prevalence of asymptomatic malaria parasitaemia among pregnant women in a rural setting. 272 pregnant women, aged between 18 and 40 years in some remote rural areas of Ebonyi State, Nigeria were recruited between January 2007 and March 2008.Their blood samples were collected and examined for malaria parasite, haemoglobin and packed cell volume using standard methods. Our results showed 59.9% prevalence of parasitaemia with the highest prevalence occurring in the first trimester (84.1%).Among the positive cases, mild parasitaemia was recorded in 47.2% moderate parasitaemia in 37.4% while severe parasitaemia was recorded in 15.3% of cases. These differences were statistically significant (P<0.016). Furthermore the distribution of malaria densities in different gravidity groups showed an inverse relationship, 45.4% in primigravidae, (31.9%) in secundigravidae and (10.4%) among people with more than five pregnancies. These findings were statistically significant (P< 0.0001). The prevalence of anaemia in pregnancy in this study was 62.4%. Apart from the use of nets, drugs and vector control, the prevention of malaria in pregnancy in very poor socioeconomic settings should make provision for nutritional support

Solid Waste Management: The use of Broken Waste Bottles as Reinforcement Agent for Aluminum Matrix Composite

ABSTRACT Broken bottles and glasses have constituted a serious waste management problem. These broken bottles are dangerous and can inflict serious body injury if stepped upon accidentally. This research work has investigated the use of these broken bottles as reinforcement agent for the production of Particles Reinforced Aluminum Matrix Composite (PAMC). The developed composite using waste bottles and glasses in aluminum matrix had improved mechanical properties of the composite. The investigated mechanical properties were hardness and tensile strength. Tensile strength values for the as-cast composite which was produced using stir cast method were all greater than that of the monolithic aluminum which has a tensile strength value of 90N/mm 2 . The aged hardened composite also showed improvement over the as-cast composite indicating that the composite responded to age hardening. All values of hardness and tensile strength were higher in the case of the age hardened composite. Observations of microstructure revealed precipitate formation of the second phase in the case of the age hardened composite. The work has revealed that waste bottles can be used in improving the mechanical properties of monolithic aluminum