Category Archives: Articles
EFFECT OF PROCESSING METHODS AND TIME ON THE VITAMIN C CONTENTS OF SOME LEAFY VEGETABLES SOLD IN LOKOJA, NIGERIA
A simple iodometric method of titration was used to determine the effect of storage, processing type and time on the vitamin C content of the leaves and stalk of Spinacea oleracea (alefo), Vernonia amygdalina (bitterleaf), Telfaria occidentalis( ugu), and Corchorus olitorius (ewedu). Processing methods like blanching, sundrying, and fridge storage were applied to each vegetable. Fresh leaves and stalk under no processing condition showed a vitamin C content of 140.5mg/100g and 61.0mg/100g for V. Amygdalina, while those of C.olitorius gave 28.2mg/100g and 4.4mg/100g respectively. Blanching at 20°C for 2 minutes yielded a higher amount of Vitamin C when compared to blanching at 100°C and 60°C. The highest loss of 95% was recorded for sundried leaves and stalk of all vegetables analysed. Fridge storage returned a higher amount of vitamin C for S.oleracea at day 1 and the lowest value for C.olitorius for the same day. The implication is that blanching and sundrying were observed not to be suitable as processing methods for vegetables especially in the tropics. Cold storage on the other hand remains a viable option.
E-learning shows a completely novel education environment for students, thus requiring a diverse ability set to be successful. Significant research and evaluation skills are growing in significance as students have increasing volumes of knowledge from … Continue reading
Biotechnology and Genetic Engineering (Recombinant DNA Technology) alongside Nanotechnology are some of the fastest emerging Scientific and Technological revolutions of the twenty first (21st C) century. The fact however remains that Local Agricultural biotechnology as opposed to the recently advanced/current biotechnology has been practiced by various communities all over the world. It is pertinent to note that our ancestors especially in sub-Saharan parts of Africa have utilized one form or the other of crude but ingenious skills and techniques in diverse agricultural/industrial applications. Modern biotechnology as we know or learnt now is nothing but the development of such local or indigenous processes by our ancestors through scientific and technological breakthroughs of our time. Thanks to the discovery of DNA -the wonder molecule that carries such an enormous unprecedented reservoir of information in every living organism-whose manipulation gave rise to various organism of interest and contributing to the economies of most Nations. This review is therefore an attempt to reconsider some of our useful local agricultural age long practices with a view to proffering ways of growing them for sustainable national development.
Zero-shot learning (ZSL) has recently received extensive attention for its potential in achieving scalable object recognition with lower human labor cost relative to traditional supervised learning. However, zero-shot learning is a nontrivial problem, and its feasibility relies on satisfaction of several important assumptions and conditions, where learning knowledge shareable between seen classes and unseen classes becomes the foundation. A plenty of works are proposed from different views with various formulations while obeying the foundation. We will review the literature of zero-shot learning comprehensively while putting emphasis on analyzing their motivations, assumptions, and exact mechanism for learning transferable knowledge that is helpful for connecting testing images and description of unseen classes. Finally, benchmarks for evaluating and comparing kinds of approaches are discussed mainly involving the datasets, protocols and evaluation measures. We hope this review may shed light on advanced solutions to zero-shot learning. Continue reading
Cultural differences among international students refer to the students from countries and regions differ from others in the aspects of belief, value concept, behavioral code, manners and customs. Due to the existence of the cultural differences, it is important to take interculture into consideration and take active counter-measures for the resulting problems in the teaching and administration of international students. Except for the substantial problems, the adaptability of international students is gradually emerged from the water. From the perspective of interculture, the paper deeply discusses the teaching and administration of international students in China based on the case study of Jinan University. Furthermore, it highlights the characteristics between East and West, tries to understand the interaction among cultures and attempts to put forward feasible solutions to the cultural adaptability of international students. The education and administration on the international students under the atmosphere of intercultural communication, it is necessary to realize that the education and administration on the international students is a kind of intercultural education and administration, and a kind of service-oriented education and administration model.
In this paper, the ion source electron beam evaporation method was used to fabricate ZnO films with Si as the base and TiO2 as the buffer layer. By further thermal insulation and annealing treatment at different temperature conditions, different film s… Continue reading
There exist numerous of disputes about delaying retirement in China for a long time. Most discussions are made from two aspects: the necessity of delaying retirement and the possible impacts brought by delaying retirement. Most scholars advocate delayi… Continue reading
Virtual reality technology enables people to rethink the real world in the traditional sense. The old and classical philosophical questions become hot topics because of its produce. For example, what is reality? How to define the reality? What is the relationship between possibility and reality? What is the nature of the virtual reality? Which problem will bring from virtual reality technology? I try to give some meaningful suggestions about these problems.