Archives-November 2018

This study evaluated water quality of the Ashaiman reservoir and fish holding facilities at a hatchery close to the reservoir. Physicochemical parameters, nutrients, productivity and fish pathogenic bacteria were determined monthly. Physicochemical parameters at all sites were within suitable range for fish production. Nutrient levels were however significantly higher in the culture facilities than the reservoir (P<0.05). Productivity levels and pathogens were above the suitable limit in hatchery tanks but within acceptable range in the reservoir. A water quality index (WQI) of 100.01 for the reservoir is indicative of poor quality. Pathogenic bacteria load was high and should be of concern to the fish hatchery operations.

Non-Hodgkin's malignant lymphomas are malignant haemopathies characterized with clinical and anatomy diversity. Mycosis associated lymphoma tissue (MALT) is part of marginal zone B-cell lymphoma. The stomach is the most common site. We report in this study, a case of a 57 year old woman with no particular history who presented a right superior eyelid and orbit tumor with the exophthalmos. Context of fever noted in the progression. The immunohistochemistry of the biopsy of this tumor concludes with a MALT lymphoma. Nowadays such a case has seldom been published. After using Rituximab, cyclophosphamide, vincristine and prednisone, all the tumefactions disappeared. This case was interesting because of the rarity localisation of this lymphoma, and shows the interest of a first biopsy before any surgical excision of tumor.

The effect of polyvinyl alcohol (PVA) having molecular weight 16,000u in alkaline non-cyanide zinc plating bath on the characteristics of zinc plating process has been investigated. The SEM images indicated that zinc particles produced in plating bath were either in block form if plating bath without PVA or in slice form if plating bath with PVA. The size of zinc particles depended on PVA concentrations in plating bath. If the content of PVA in plating bath increased, the zinc grain size reduced. Hull Cell tests also illustrated that surface of zinc deposition improved for plating bath with PVA. Semi-bright scope of zinc plated coating expanded if the PVA concentration in plating bath grew. However, bright scope did not appear in all samples from plating bath with various concentrations of PVA. It was reasonable due to PVA playing a role as primary additive for zinc plating as other authors confirmed. Interestingly, cathodic polarizations were increased in presence of PVA. Throwing power increases significantly with increasing PVA concentration.

The detoxifying effect of Vitamin C in the graded levels of Fumonisin B1 fed to bird was conducted with One hundred and five (105) point-of-lay Isa brown breed at 18 weeks and twenty-one (21) cocks at 25 weeks to access egg qualities and embryonic development of their eggs. The birds (layers) were assigned to Seven (7) dietary treatments of 15 birds each at three (3) birds per replicate. The treatments were classified according to inclusion level of Fumonisin B1 and Vitamin C. Treatment A served as the control, B (10 mg/kg of FB1), C (20 mg/kg of FB1), D (30 mg/kg of FB1), E (10 mg/kg of FB1 + Vitamin C), F (20 mg/kg of FB1 + Vitamin C), and G (30mg/kg of FB1 + Vitamin C). The birds were artificially fertilised with semen collected from intact cocks. All the eggs collected from day three (3) after artificial insemination for seven (7) days were incubated to assess the egg fertility and monitor the development of resulting embryos at 7 and 14 days. A significant difference was observed in shell weight (p?0.05) while other external qualities of eggs examined were not significantly (p?0.05) influenced by the level of fumonisin B1. Yolk height and yolk diameter had significance (p?0.05) while other internal qualities were not significantly (p?0.05) affected. No significant effect of FB1 was observed for the embryonic development just as there was no difference between the selected embryos of the treated group and the control. Meanwhile, the result shows that Vitamin C can effectively ameliorate the toxic effect of the FB1 on the egg qualities (external and internal) and embryonic development of eggs. 

The access to agricultural information in Sudan continues to be challenging to farmers due to use of inadequate sources and traditional extension approaches. The rapid growth of smart-mobile phones usage in developing countries resulted in several advantages compared to other alternatives in term of costs, geographic coverage and ease of use. This research was conducted in North Kordofan Sate to explore the role of smart-mobile phone in accessing agricultural information. Primary data were obtained by structured questionnaires and focus group discussion through participatory rural appraisal and observation while secondary data were collected from scientific journals, books and authenticated web sources. A number of 230 respondents (10% from total farmers) were interviewed and five focus group discussions were done. Statistical Packages for Social Science (SPSS) version 22 was used to analyze the data with aid of descriptive statistics and Chi-squire Test. The result indicated that most of the respondents fall in age group between 21-40 years, and they depend on farm activity. There was 90% of farmers processed mobile phone since more than three years ago, 90.8%continuedto use smart mobile phone to access agricultural information and showed positive contribution towards income generation. The results also revealed that there was positive perception towards using mobile phones which showed more efficient in use than radio and TVs. The results showed great advantages of using smart mobile phone where 75.2 % of respondents preferred to get agricultural information, logistics and other needs through successful communication in the mid of agricultural season. Results of Chi-squire test showed significant differences between the parameters tested. The study recommended that farmers should be connected with mobile phones to admit ease communication with agricultural extension offices and quick access to their needs and logistics.

Education is a multidimensional process, one side it enhances the economic growth and another side, it reduces the poverty by increasing the productivity. This study examines the extent to which education affects economic growth in Bangladesh and show the impact of education on economic growth. In this study we utilize secondary time series data on GDP growth rate, adult literacy rate, gross enrolment in primary education, gross enrolment in secondary, gross enrolment in tertiary and government educational expenditure for the span of 2001-2015 in case of Bangladesh. The result of the t-test, F-test, the coefficient of correlation and coefficient of determination shows that education is positively and significantly related to the economic growth. For identifying the model specification, this study use multicollinearity test, Park test, Breusch-Godfrey (BG) test for heteroscedasticity, Durbin-Watson and Breusch-Pagan-Godfrey (BPG) test for autocorrelation. This tests suggest that our data is free from Heteroscedasticity and autocorrelation but there is multicollinearity problem in this data, for removing this multicollinearity we use dropping variable method.

The myelogram is an essential tool for the diagnosis of haematological disorders. The sternal puncture is the gesture that allows the extraction of the spinal cord. This invasive technique is achievable by practitioners outpatient but is not devoid of life-threatening complications. We report the case of a patient hospitalized for etiological assessment of a myelodysplastic syndrome, sent in cardio-respiratory arrest state after sternal puncture. The echocardiography performed concomitantly with cardiopulmonary resuscitation was able to demonstrate cardiac tamponade by hemopericardium. Following an unsuccessful xiphoidal puncture attempt, a rescue thoracotomy was performed. The thoracotomy revealed a wound in the anterior wall of the right ventricle. Complications of sternal punctures can be fatal. The choice of the material used, the learning curve of the gesture itself, the early detection of complications are necessary elements to consider.

The present investigation makes an attempt to study the modulus of elasticity of concrete , concrete in which M-sand is used as a partial and full replacement for natural sand. E is an important parameter reflecting the ability of concrete to deform elastically.M20 and M25 grade of concrete was investigated by replacing natural sand by M-sand at replacement levels of 25%, 50%, 75%, sand 100%. The results revealed that there is an increase in the value modulus of elasticity of concrete as the percentage of m sand increases also it is observed that the stress-strain behavior exhibits non-linear variation

Extensive studies were investigated Mechatronics of Automobile since the synergistic combination of classical electro-mechanic of automobile , computer science and automatic engineering were integrated to together at the beginning of the conceptual stage for the design of new models of automobile. More automobiles involve more pollution after fuel consumption. Although motors’ performance had been proving through its electronic computerized control unit, also called calculator, the limitation and the insufficient functional problem of motor’s injection system remain unsolved. To overcome this problem at different angle in contrast with early studies and conclusions, this paper focuses on motor’s electronic computerized control unit, such as Motronic injection system performance to highlight limitation and insufficient of motor’s injection system by using requirement and constraint analysis of electronic system on the sensors, calculators and injectors before the consequences of the failures of Mechatronics key elements in the motor’s injection system. The results show that electro-chemistry constraints, hardware and software requirements .This paper support the hypothesis that hybrid engine is more perfect for reducing fuel consumption and avoiding harmful gas emission than an internal combustion engine or an electric motor one alone .

At different stages of their development, we studied the bioaccumulation of lead and cadmium residues in fish species Tilapia guineensis, Sarotherodon melanotheron, Hemichromis fasciatus in Nokoué lake and Dicentrarchus labrax, Selene dorsalus and shrimp in Cotonou Channel. The methodology adopted was to identify the species and collect the muscles in these different species of fish and shrimp at different stages of their life's development. Fishery products in situ and water samples taken are sent to the laboratory in coolers maintained at 4 ± 5 ° C for the quantitative analysis of lead and cadmium residues by spectrophotometry. The results of the analysis show that lead residues are more accumulated in younger species than in adults in Sarotherodon melanotheron and Hemichromis fasciatus, unlike Tilapia guineensis. On the other hand, cadmium is weakly present in water and in aquatic fauna and some traces of cadmium residues are found in the Cotonou Channel, notably at the height of Dantokpa market. The water-based lead bioconcentration factors are significantly greater than the unit showing the predominance of particulate lead exposures of sedimentary origin. The lifestyle of the fish species would be the main factor explaining these results.