Melgaard Moser (flysquash37)

Notably, the size of the nanocomposites was proportionally increased with an increasing ratio of ZnO-NPs. XPS analysis affirmed the presence of both Cu and Zn in the nanocomposites with varying binding energies compared with individual nanoparticles. Furthermore, a high photo-degradation efficacy was achieved by increasing the ratio of ZnO-NPs in the nanocomposite formulation, and 97% of organic MB dye was removed after 85 min of irradiation using the CuO/ZnO20/80 nanocomposite.This study investigated the extent to which teachers' time utilisation influences students' enrolment in certificate examination and compared the realized teaching time by teachers in public and private secondary schools in Benin, Nigeria to draw the attention of school leadership to the importance of teachers' time utilisation to the attainment of educational goals. The survey design was employed to elicit data from three hundred and sixty randomly selected senior secondary school students from five public and five private senior schools. Questionnaire served as the data collection instrument and the data were subsequently analysed using Kolmogorov Smirnov test, Mann Whitney U test and Kruskal Wallis test. Results indicate that realised teaching time and time utilisation by the teachers in public secondary schools is significantly lower than what obtains in private secondary schools and significantly lower than the expected teaching time. The realised teaching time and time utilisation also varied significantly within the public and private secondary schools and between classes in public and private secondary schools. Lastly, class sizes were significantly large in uencthe public schools but generally small in the certificate classes, thus implying that teachers' time utilization has a significant impact on students' enrolment. The need for school leaders and administrators to ensure increased teachers' time utilisation for enhanced enrolment in certificate examinations was suggested, among others.Uncontrolled decomposition of agro-industrial waste leads to extensive contamination of water, land, and air. There is a tremendous amount of waste from various sources which causes serious environmental problems. The concern in the disposal problems has stimulated research interest in the valorization of waste streams. Valorization of the wastes not only reduces the volume of waste but also reduces the contamination to the environment. Waste from food industries has great potential as primary or secondary feedstocks for biopolymer production by extraction or fermentation with pre-treatment or without pre-treatment by solid-state fermentation to obtain fermentable sugars. Various types of waste can be used as substrates for the production of biomaterials but recently more focus has been observed on the agro-industrial wastes which have a high rate of production worldwide. This review collates in detail the different food wastes used for biopolymer, technologies for the production and characterization of the biopolymers, and their economic/technical viability. Globally, coffee is one of the most consumed beverages and recently, it has been a target of researchers to understand its effect on human health whether good or bad. Even though there is controversy on coffee consumption effect in cardiovascular diseases, several reports pointed out that coffee has a positive effect on the occurrence and progression of chronic non-communicable diseases including cardiovascular diseases. However, the impact of Ethiopian coffee Arabica consumption on cardiovascular diseases has not been well investigated thoroughly. The aim of the present study was to investigate the effect of habitual consumption of Ethiopian Arabica coffee on the risk of cardiovascular diseases among non-diabetic individuals in Addis Ababa. A cross-sectional study was conducted in 70 healthy individuals in Addis Ababa. The participants were 35 coffee drinkers (16 males; 1