Browsing Open Access Journals by Title
Now showing items 81-100 of 831
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A Benchmark Study on the Properties of Unsubstituted and Some Substituted Polypyrroles
(2015-11)The geometric, thermodynamic, electronic and absorption properties of Pyrrole and some of its derivatives have been carried out using CCSD/6-311++G(d,p)/STO-3G, TD-DFT and DFT/B3LYP/6-31G(d) from monomer to five repeating ... -
Biocatalytic production of chitosan polymers from shrimp shells, using a recombinant enzyme produced by pichia pastoris
(Scientific Research Publishing, 2012-10)Chitosan has a unique chemical structure with high charge density, reactive hydroxyl and amino groups, and extensive hydrogen bonding. Chitin deacetylase (EC 3.5.1.41) catalyzes the hydrolysis of the N-acetamido groups of ... -
Biochar and vermicompost soil amendments reduce root rot disease of common bean (Phaseolous Vulgaris L.)
(African Science Publications, 2021-01-01)Common bean production is constrained by root rot complexes resulting to as much as 70% losses in Kenya. This study sought to establish the effect of soil amendments biochar and vermicompost on root rot fungal pathogens ... -
Biodiesel Production from Neem Seed (Azadirachta indica) Oil Using Calcium Oxide as Heterogeneous Catalyst
(2018-04)Biofuel is an alternative and environment friendly source of energy, originated by the use of fossil fuels and have led to a notable growing demand from the last few decades. As biodiesel are usually acquired from renewable ... -
Bioethanol Production from Rice Straw Enzymatically Saccharified by Fungal Isolates, Trichoderma viride F94 and Aspergillus terreus F98
(Scientific Research, 2014-06)Egypt faces a high population growth rate nowadays, which demands for an increase in agricultural production efficiency. Consequently, agricultural field residues will increase. Rice straw is one of the main agriculture ... -
Biological Activities of Resveratrol against Cancer
(2018-04)Resveratrol (RSV) is a polyphenolic compound naturally found in grapes, peanuts, and berries. Considerable research has been performed to determine the benefits of RSV against various human diseases, especially cancer. ... -
Biological control of Aphis fabae and Bemisia tabaci by the native isolates of Beauveria bassiana in Kerman province
(published online, 2012-10)In this research, we isolated the pathogenic strain, KB512, of entomopathogenic fungi Beauveria bassiana from soil and insects, which produced aerial and submerged conidia and blastospores in the laboratory conditions. ... -
The biological effectiveness of wood modified with linear chain carboxylic acid anhydrides against the subterranean termites Reticulitermes flavipes
(published online, 2008-06)he work described in this paper has demon- strated that chemically modified Corsican pine sapwood with a homologous series of linear chain carboxylic acid anhydrides provided bioprotection against the subterranean termites ... -
Biological radiation
(African Journal of Biological Sciences, 2020-01-01)For a long time, the scientific community has been discussing whether living beings have specific biological radiation that is different from the standard set of electromagnetic and acoustic waves occur in the process of ... -
Biology of Invasive Termites: A Worldwide Review
(published online, 2012-09)The number of recognized invasive termite species has increased from 17 in 1969 to 28 today. Fourteen species have been added to the list in the past 44 years; 10 have larger distributions and 4 have no reported change ... -
Biophysical EPR Studies Applied to Membrane Proteins
(2015-11)Membrane proteins are very important in controlling bioenergetics, functional activity, and initializing signal pathways in a wide variety of complicated biological systems. They also represent approximately 50% of the ... -
Bioremediation of heavy metal ions from contaminated soil and water by microbes: A review
(African Science Publications, 2021-04-05)Scientists all over the world are working tirelessly on the management of environmental toxicants and their control over the past two decades due to their injurious effects on plants, animals, and humans. These calcitrants ... -
Borders by Proxy, Europe’s Aggressive Border Restrictions and the Perils of Young African Migrants
(Scientific Research, 2015-04)The intrinsic challenges in the intersection of international laws and codes of praxis with respect to the operation of EU states’ border officials towards migrant individuals, to be specific, migrant African youth, is ... -
Bovine trypanosomiasis and vectors in Lom and Djerem Division of East-Cameroon
(African Science Publications, 2020-07-09)Bovine trypanosomiasis is a major threat to the livestock sector of Cameroon. The main objective of this study was to determine the prevalence of bovine trypanosomes and vectors in the SODEPA Ranch of Ndokayo. A cross ... -
Bradyarrythmias: A Study of Anthropometric, Demographic and Comorbidity Profiles in an African Population
(Scientific Research, 2013-11)Background: Bradyarrhythmias are a group of cardiac rhythm disorders that are characterized by bradycardia and they are cosmopolitan in distribution. Their demographic, anthropometric and comorbidity attributes are yet ... -
Breeding of NHase hyper-producing Rhodococcus ruber strain LUV30-06 and verification of mutants by RAPD
(Scientific Research Publishing, 2013-04)A nitrile hydratase (NHase) hyper-producing Rhodococcus ruber strain LUV30-06 was bred by mutagenization on the starting strain CGMCC3090 with ultraviolet irradiation and lithium chloride. The NHase activity of the strain ... -
Bubble Formation in Helicoidal DNA Molecules
(2016-11)Wave interaction is addressed the framework of the helicoidal Peyrard-Bishop model of DNA. The model is first reduced to a set of coupled nonlinear Schrodinger equations via the multiple scale expansion. Modulational ... -
Burnout as Alienation in the Counselling Field: The Descent from Homo-Faber to Homo-Economous
(Scientific Research Publishing, 2016-04-08)The concepts burnout and alienation are routinely connected in a linear unproblematic trajectory (Tomei et al., 2011) perpetuating more of an ideological conflation than providing any insight into either concept. This ... -
Can Reputation Ensure Efficiency in the Structured Finance Market?
(Scientific Research, 2017-01)Structured finance products are opaque and their ratings are unverifiable. Therefore, a credit rating agency (CRA) cannot credibly fully reveal its information about the quality of a rated structured finance project. Can ... -
Cancer Risk Due to the Natural Radioactivity in Cigarette Tobacco
(Scientific Research Publishing, 2016-07)Thirty-one samples of cigarettes have been collected from local markets of different types of origins. The samples were selected according to a survey distributed to smokers by paper and digital survey to see the most ...