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62 articles for “R.J.A. Richard”
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Research ArticleOpen accessIn the author namesBacteria Contaminants and their Antibiotic Sensitivity from Selected Herbal Medicinal Products from Eldoret and Mombasa, KenyaLucia Keter, Richard Too, Nicholas Mwikwabe et al.Herbal products are used worldwide for the treatment and prevention of various diseases and currently represent a substantial proportion of the global drug market. However, these products have the potential of being contaminated by different microorganisms due to poor hygienic practices during handling, processing and packaging. The main aim of this study was to evaluate microbial quality of herbal products … …Current Research in Microbiology, Vol. 7, Issue 1 · 28 Jan 2016 · 17,166 accessesView PDFCite
Research ArticleOpen accessIn the author namesThe Effects of Seasonal Variations on Typha capensis and Heliconia psittacorum in the Remediation of Heavy Metals from Soil and WaterWiafe Samuel, Buamah Richard, Owusu MichaelDifferent plant species have been used in the remediation of different heavy metals. The performance of a macrophyte to remediate heavy metals may be dependent on a lot of factors which may include water chemistry, metal solubilityand temperature. The objective of this research was to ascertain the effects of seasonal variations on the remediation of heavy metals. To this end,two … …American Journal of Applied Sciences, Vol. 15, Issue 12 · 31 Jan 2019 · 7,791 accessesView PDFCite
Research ArticleOpen accessIn the author namesUpdates on Nutritional Diversity in Sphenostylis stenocarpa (Hoechst ex. A. Rich.) Harms. for Food Security and ConservationCatherine Veronica Nnamani, Sunday Adesola Ajayi, Happiness Ogba Oselebe et al.Neglected and underutilized plant genetic resources constitute opportunity for diversification of food and environmental services globally, particularly within communities in developing country. They can provide, in some cases, higher nutrient content than traditional globally accepted staples commonly consumed. Currently, with climate uncertainty and the desire and challenge for sustainably produced food, there is an urgent need to promote crop diversity. … …American Journal of Agricultural and Biological Sciences, Vol. 13, Issue 1 · 10 Jul 2018 · 9,337 accessesView PDFCite
Research ArticleOpen accessIn the author namesNuclear Posture Review: Kahn Vs. Schelling…and PerryTimothy Sands, Harold Camacho, Richard MihalikThe 2018 American Nuclear Posture Review includes a revived emphasis on deployed, low-yield nuclear options to reserve credible deterrence against countries that have transmitted beliefs the U.S. would not respond to employment of non-strategic nuclear weapons, since there is a mistaken perception that the U.S. could only respond with high-yield strategic weapons, which would be deemed unacceptable. An important question … …Journal of Social Sciences, Vol. 14, Issue 1 · 30 Apr 2018 · 9,278 accessesView PDFCite
Research ArticleOpen accessIn the author namesTheoretical Context of the Nuclear Posture ReviewTimothy Sands, Richard Mihalik, Harold CamachoThe very recently published 2018 American Nuclear Posture Review hails the revived emphasis on deployed, low-yield nuclear options to reserve credible deterrence against countries that have transmitted beliefs the U.S. would not respond to employment of non-strategic nuclear weapons, since there is a mistaken perception that the U.S. could only respond with high-yield strategic weapons, which would be deemed unacceptable. … …Journal of Social Sciences, Vol. 14, Issue 1 · 30 Mar 2018 · 8,079 accessesView PDFCite
Research ArticleOpen accessIn the author namesMapping, Characterization and Dispersion of Metallic Pollutants within a Catchment of Illegal Gold Mining Activities in GhanaWiafe Samuel, Richard Buamah, Helen Essandoh, Lawrence DarkwahThe illegal gold mining activities prevalent in most part of Ghana have caused substantial havoc to the environment especially water bodies which serve as sources of water for domestic, industrial and agricultural purposes. The Ghana Water Company Limited (GWCL) recently shut down their water treatment plant due to the extreme pollution and high cost of treatment. This study focusses on … …American Journal of Engineering and Applied Sciences, Vol. 11, Issue 1 · 13 Jan 2018 · 8,181 accessesView PDFCite
Research ArticleOpen accessIn the author namesComparative Studies on Proximate Composition and Phytochemical Screening of Mango, Key lime, African star apple and African pear Seeds as Possible Coagulant Aids for Water TreatmentAnimetu Seghosime, Johannes Akpabla Mawuli Awudza, Richard Buamah, Sampson Oduro KwartengMany fruits including mango (Mangifera indica), key lime (Citrus aurantiifolia), African star apple (Chrysophyllum albidum) and African or bush pear (Dacryodes edulis) are nutritionally valuable as human food, however after consumption of the fruits, their seeds are discarded as wastes since they are of no commercial value and this results in disposal problems. Hence assessment of the constituents of such … …American Journal of Environmental Sciences, Vol. 13, Issue 4 · 12 Aug 2017 · 9,953 accessesView PDFCite
Research ArticleOpen accessIn the author namesModelling and Assessment of Effect of Operation Parameters on Gas Turbine Power Plant Performance using First and Second Laws of ThermodynamicsSunday Olayinka Oyedepo, Richard Olayiwola Fagbenle, Samuel Sunday AdefilaIn this study, modelling of gas turbine engine performance is carried out using thermodynamics relations. The model reveals that the influence of operation parameters such as compression ratio, turbine inlet temperature and ambient temperature has significant effect on the performance of gas turbine engine. Energy and exergy analyses were conducted to evaluate the performance of the selected power plant and … …American Journal of Engineering and Applied Sciences, Vol. 10, Issue 2 · 3 May 2017 · 7,923 accessesView PDFCite
Research ArticleOpen accessIn the author namesMonetary Policy in a Markov-Switching VECM: Implications for the Cost of Disinflation in GhanaRichard Kwabi Ayisi, Joseph AduMonetary policy assessment in Ghana has been conducted using vector auto-regression. This however, presumes stability of long run outcomes and particularly ignores monetary policy regime changes that has characterized the economy overtime. This study thus introduced the possibility of switches in the long run equilibrium in co-integrated vector auto-regression by allowing both the covariance and weighting matrix in the error-correction … …American Journal of Economics and Business Administration, Vol. 8, Issue 2 · 18 Mar 2017 · 8,553 accessesView PDFCite
HypothesisOpen accessIn the author namesAnalysis of Market Orientation on Business Performance in the Multinational Service IndustriesMartin Owusu Ansah, Richard ChinomonaThe paper examined the extent of market orientation on business performance in the multinational service industries in Ghana. It applied the behavioral viewpoint of market orientation measurement using MKTOR scale as a base in eliciting information from eleven marketing managers through in - depth interview while one hundred and sixty-three marketing managers were also surveyed using structured questionnaires. Structural Equation … …Journal of Social Sciences, Vol. 13, Issue 1 · 9 Feb 2017 · 8,007 accessesView PDFCite