4791. Organochlorine pesticides levels in fermented dried cocoa beans produced in Ghana
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Samuel Frimpong, Philip Yeboah, J. J. Fletcher, Dickson Adomako, Paul Osei-Fosu, K. Acheampong, Gustav Gbeddy, Israel Doyi, Courage Egbi, Samuel Dampare, John Pwamang |
Abstract |
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Category : Agricultural Sciences | Sub Category : Agriculture |
Organochlorine pesticides levels in fermented dried cocoa beans produced in Ghana
Organochlorine pesticides have been used on cocoa. These pesticides have been banned in Ghana, however due to their persistent nature and slow degradation rate, organochlorine pesticides can remain in the environment long after application and in organism long after exposure. The main objective of this study was to determine the levels of organochlorine pesticide residues in fermented dried cocoa beans produced in Ghana, using gas chromatography mass spectrometry. Fermented dried cocoa beans were sampled at random in the two main cocoa storage warehouses located in Tema and Takoradi. The extraction method used consists of addition of distilled water to the pulverized cocoa beans samples, and allowed to stand for 15 minutes followed by maceration with acetonitrile. Extract clean-up then follows by solvent partitioning with aqueous phosphate buffer solution followed by two solid phase extractions; bond Elut C18 and Envi-carp superclean cartridges clean-up respectively. The investigated pesticides were beta-HCH, lindane, delta-HCH, aldrin, dieldrin, endrin, heptachlor, gamma-chlordane, alpha-endosulfan, beta-endosulfan, endosulfan sulfate, p,p’-DDT, p,p’-DDD, p,p’-DDE and methoxychlor. The percentage recoveries ranged from 70-110 percent, with instrumental detection limits of 0.15µg/kg. The widest range of organochlorine pesticides detected was from endosulfan (1.0 – 103.0 µg/kg), which was previously registered for cotton production in Ghana.
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Outcomes of peer tutoring in analysing case studies among ESL advanced diploma students
This study analyses peer tutoring sessions of two groups of advanced diploma financial accounting students with mixed proficiency. Many studies in peer tutoring have highlighted the positive results of the approach due to the scaffolding process which promotes effective learning. Hence, in this study, much emphasis is placed on the scaffolding element. The students’ peer-tutoring sessions in analysing case studies were video-taped and they were followed by the production of individual student diary entries and interviews in order to increase understanding of the experience gained during the sessions. In addition, the researcher’s observation notes were analysed to increase understanding of the group process. The findings reveal that the scaffolding process was evident during the peer tutoring. It resulted in the tutors assisting the tutees in increasing understanding, clarifying ideas, gaining new information, organising their answers, and improving their command of English. Therefore, peer tutoring is advocated in helping less capable students to learn effectively from their more capable peers.
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Patriotism dilemma among Malaysian youth: between strategy and reality
Development of the country has been the ultimate agenda since the independence of Malaysia, in year 1957 up to now. The development of the country will inevitably involve the development of the current younger generation who will eventually be taking over the leadership of the country. Here, the generation that needs to be focussed upon is the youth, the ones who will be leading the government as well as the country in the future. The youth should not be ignored in the country’s development scheme plan. Therefore, this write up concentrates on the elaboration and suggestions on how to develop patriotic spirit in youth.
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Practical model for measuring progress towards Sustainable rural tourism
Global growth in tourism has brought a wealth of economic and global. Today one of the planners in the tourism resources that have attracted more and more rural areas. Overall, a very valuable part of our heritage, rural world And especially the indigenous architecture and unique identity of a region well-supported and reflected in its territory Thus, according to the situation in rural areas And development necessary to sustain it, Rural tourism can be an option for rural development .In this study population, statistical information is from 19 villages in Isfahan city. A matrix with 11 rows and 19 columns, including indicators to be studied include the village. Component analysis based on survey results showed Six factors (distance from the village to the city center, The number of rural doctors, Village distance to the center section Sports facilities to count toward the village, High proportion of rural banks and rural villages have a number of drinking water to villages), about 86/89% of the cumulative variance is explained. Weighting and aggregation of these factors with the environment, GIS, and the potential areas of tourism infrastructure services were identified. Village on the area of tourism and Jrqvyh Lyy as the Ramshh Village, Sistani and Zefreh tourism in terms of having been the last times. The Euclidean distance method and a gap analysis, four regions were similar in terms of its tourism infrastructure services.
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Prevalence of dental Fluorosis among residents of nine villages in and around mundaragi of Gadag district in Karnataka, India
The present study was conducted to assess the health impact of, high fluoride content in ground water among the inhabitants of nine fluoride affected villages in and around Munndaragi of Gadag district in Karnataka, India. The study area, where sample survey was conducted includes Muktampur, Kalakeri, Virupapur, Bennihalli, Mushtikoppa, Hirewaddatti, Mevundi, and Budihal villages including Mundaragi town. Research articles by many researchers revealed that, fluoride distribution in these villages was found higher than the prescribed limits. Sample survey was conducted, by randomly selecting fifty families in each village comprising total population of 2001, in the month of April 2012. Dean’s index codes were used to assess the severity of dental fluorosis. The results revealed that 42.12% found normal,14.34% found questionable,28.18% found with very mild fluorosis,13.80% found with mild fluorosis,0.15% with moderate fluorosis and only 0.05 % found with severe fluorosis. It was also revealed that people also suffering from pain in neck, back, joint, etc.
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Prevalence of tongue abnormalities in dental outpatient of Shiraz dental school
Tongue is one of the most important organs in the oral cavity which has significant roles in different functions such as speaking, mastication, swallowing, breathing, etc. The tongue may be influenced by internal diseases sooner than other organs and also may be involved in some abnormalities such as developmental, genetical and environmental. This study has been performed to determine the frequency of seven tongue abnormal conditions in patients attended in the Screening Clinic of oral medicine department of dental school in Shiraz, Fars providence, Iran. A total of 112 adults that aged between 15-58 years old were clinically examined punctilious observation using dental mirror and proper light. The prevalence of tongue anomalies were evaluated and analyzed according to form, age, sex and systemic condition using chi-square method. Tongue lesions were seen in 19patients (16.9 %) and the most prevalent lesion was geographic tongue(5.4%) followed by fissured tongue(2.6%), combination of both(2.6%), atrophy of tongue papilla(1.7%), coated and hairy tongue (2.6%), oral lichen planus (0.89%) and finally macroglossia(0.89%). Respectively a correlation was found between the occurrence of fissured and geographic tongue. A correlation was found between hairy tongue and smoking. Familial history was also seen in some patients. Emotional stresses relate to lichen planus and geographic tongue. Tongue anomalies and abnormal conditions were more prevalent and occasionally may be related to systemic problems so complete oral and specially tongue examination is necessary.
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Primary diffuse large B-cell lymphoma of the penis: Difficulties in diagnosis and treatment
Penile lymphoma is an extremely rare neoplasm. We report the case of a 68 -year-old man who presented with penile masse. MRI confirmed the existence of a masse infiltrating the corpus cavernosum. Staging was performed using fluorine-18-fluorodeoxyglucose (FDG) positron emission tomography-computed tomography (PET-CT). The patient was treated initially with penile amputation; we confirmed malignant lymphoma of the corpus cavernosum by postoperative pathological examinations. We treated with a systemic rituximab-chemotherapy regimen. The patient was tumour-free at the 18-month follow-up.
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Radiation effect on soret and dufour, MHD free convection heat and mass transfer in a doubly stratified darcy porous medium with viscous dissipation
This paper analyzes the influence of thermal radiation on Soret and Dufour, steady MHD free convection heat and mass transfer from a vertical surface in a doubly stratified Darcy porous medium with viscous dissipation. The governing non–linear partial differential equations have been reduced to the coupled ordinary differential equations by the similarity transformations. The resulting equations are then solved numerically by using the implicit finite difference scheme. The effects of various parameters entering into the problem have been examined on the flow field. The non dimensional velocity, wall temperature and concentration profiles are displayed graphically and discussed in detail.
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Recent history of l2 research from psycholinguistic perspectives
The field of SLA is relatively new, but different classifications have been suggested for its development (Mitchell & Myles, 2004). Indeed, there is an anonymous agreement that the establishment of SLA as a field of enquiry goes back to 1950s- 1960s (Schachter, 1998). As for the classification proposed by Ellis (2009), one development dealt with the scope of the field of enquiry. While much of the earlier work had focused on the linguistic, and especially the grammatical properties of learner language, and was psycholinguistic in orientation, later work attended to the pragmatic aspects of learner language and increasingly, employed a sociolinguistic perspective. A second development concerned the increasing attention paid by SLA researchers to linguistic theory, in particular the theory of language associated with Chomsky's model of grammar: Universal Grammar. A third development was the marked increase in theory-led research. Whereas much of the earlier research was of the research-then-theory kind, typically consisting of the collection and analysis of samples of learner language, later research was increasingly theory-led and experimental in style.
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Remarks on Weak compactness via Grills
In this paper we define sets G-weakly compact relative to a topological space through ?-open sets. Further we investigate the relationships between these sets and G ?-weakly compact subspaces.
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