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Search Results: 1 - 10 of 400903 matches for " Kazi M.M. "
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Eosinophil-active chemokines: assessment of in vivo activity
Teixeira, M.M.;
Brazilian Journal of Medical and Biological Research , 1998, DOI: 10.1590/S0100-879X1998000100003
Abstract: the selective recruitment of eosinophils in tissue is a striking feature of allergic diseases. recently, a family of chemoattractant molecules, namely chemokines, has been described which potently activates eosinophil function in vitro. we have developed a murine model of eosinophil recruitment to compare the relative potency and efficacy of chemokines in vivo. of the chemokines tested, only eotaxin and mip-1a induced significant accumulation of eosinophils in vivo, but eotaxin was more effective than mip-1a. chemokines, especially eotaxin acting via the ccr-3 receptor, may have a fundamental role in determining selective eosinophil recruitment in vivo
Study of ion beam sputtering using a glow discharge ion source
Abdelrahman, M.M.;
Brazilian Journal of Physics , 2010, DOI: 10.1590/S0103-97332010000100005
Abstract: in this work, sputtering yield in a glow discharge ion source system has been determined using the operating parameters of the ion source. the sputtering yield is found to be varied between 0.4 to 1 atoms removed per incident ion for nitrogen while for argon between 0.2 to 1.3 atoms removed per incident ion. the feature of this ion source is high output ion beam current and small size. operation of the ion source is quite simple since a stable discharge can be obtained within a large range of main parameters such as, discharge voltage, discharge current and gas pressure. also, beam profile for argon ion beam produced from the glow discharge ion source at id = 2,3 ma (discharge current) using argon gas with different gas pressures has been investigated.
Torsional vibration of carbon nanotubes under initial compression stress
Selim, M.M.;
Brazilian Journal of Physics , 2010, DOI: 10.1590/S0103-97332010000300004
Abstract: this study examines torsional vibration of single-walled carbon nanotubes (swcnts) subjected to initial compression stresses. the nanotube structures are treated within the multilayer thin shell approximation with the elastic properties taken to be those of the graphene sheet. simplified flügge shell equations of motion are proposed as the governing equations of vibration for the carbon nanotubes. a new equation of motion and phase velocity of torsional waves propagating in carbon nanotubes (cnts) subjected to initial compression stresses have been derived. the study reveals that the initial stresses present in the tube has a notable effect on the propagation of torsional waves. the results has been discussed and shown graphically. this investigation is very significant for potential application and design of nanoelectronics and nanodevices.
Corrosion Behaviour of Zn-Al-Cu Alloy in HCl Solution and its Inhibition
Portugaliae Electrochimica Acta , 2006,
Abstract: the corrosion behaviour of zn - al - cu alloy was studied in pure hcl solutions and in the presence of different concentrations of inhibitors. the techniques of measurements were: weight loss, linear polarization, polarization impedance and corrosion penetration. it was found that the corrosion rate of this alloy is greatly higher than that of zn or al. the inhibitors used were: heterocyclic pyridine (p), 2-methyl pyridine (2 mp), 3-methyl pyridine (3 mp) and 4-methyl pyridine (4 mp). these inhibitors behave as mixed type and their inhibition efficiency increases according to the order: 2 mp < 3 mp < p <4 mp. the values of activation energy of corrosion were determined in pure acid and in the presence of inhibitors. it was found that the presence of these inhibitors increases the value of activation within the same order of their inhibitory effect. the adsorption of the investigated inhibitors on the surface of the alloy follows frumkin?s isotherm.
Comparative Histological Study Vagus Nerve in Different Parts of Body on the Rabbits
M.M. Salech
Journal of Animal and Veterinary Advances , 2012,
Abstract: Through studying of vagus nerves in rabbits, histological compound observed that contain myelin nerve fiber but can be found variation percentage of different region of body, and non-myelin nerve fibers with different shapes of nucleus of the schwann cell depended on the area of nerve and function of the vagus nerve.
Analysis of the Profitability and Resource-Use Efficiency of Small-Scale Businesses in Ondo-State: A Panacea for Youth Unemployment
M.M. Fasoranti
Pakistan Journal of Social Sciences , 2012,
Abstract: The study examined the profitability and resource-use efficiency of small-scale business in Ondo-State. Multi-stage sampling technique was used to select 120 small-scale business operators in bakery, tailoring and block making services from Akoko North East, Akoko South West and Akoko North West of Ondo State. The data collected were analysed with the aid of descriptive statistics, gross margin and production function analyses. Results showed that the sampled businesses were profitable in the study area with estimated gross margin of N46, 068.8, N3, 588.8 and N39, 900.5 with estimated net returns of N33,172.00, N2,889.8 and N30,368.0 for bakery, tailoring and block making services, respectively. The result of the production function analysis showed that the inputs involved were efficiently allocated under bakery services while they were inefficiently allocated under tailoring and block making services. Bakery service was in stage 2 while tailoring and block making were in stages 1 and 3 of the production cycle, with estimated RTS of 0.613, 1.384 and-0.235, respectively.
The Influence of Micro-Credit on Poverty Alleviation among Rural Dwellers: Case Study of Akoko North West Local Government Area of Ondo State, Nigeria
M.M. Fasoranti
Journal of Economics Theory , 2012, DOI: 10.3923/jeth.2010.1.8
Abstract: The study which was conducted in Akoko North West Area of Ondo State, examined the influence of micro credit on poverty alleviation among rural areas. The study among other things examined the socio-economic characteristics of respondents, activities of the Ondo State Micro Credit Agency (OSMA) and the influence of micro credit on some selected macroeconomic variables of respondents. Data was sourced with the aid of well structured questionnaires from 120 respondents randomly selected from Arigidi and Okeagbe. The data collected was analysed majorly with the aid of descriptive statistics. Findings show that the incidence of poverty was high among the economically active age bracket as the mean age was 33 years. Result also, showed that all respondents acquired formal education as 60% had above primary school education. Also, 39.2% of total respondents had no specific occupation before the inception of the scheme. Moreover, the scheme had positive influence on respondents major macroeconomic variables namely income, savings, consumption expenditures and asset acquisition. Among other things, the level of poverty was high as reflected in the type of residence, cooking materials, health institutions attended by respondents and educational institutions attended by their children. Generally, 20.8, 30.9, 47.5 and 0.8% rated the programme good, poor, fair and excellent, respectively. The study recommends a greater coverage of the state by the scheme. Recipients should also be encouraged to reinvest their profits in other productive economic activities.
Models for mergers in higher education
M.M. Botha
South African Journal of Education , 2001,
Abstract: References to possible combinations of higher education institutions in the CHE report on the size and shape of higher education (30 June 2000) have spawned a debate on the issue, as well as responses from and internal actions in higher education institutions, that range from aggressive through defensive to strongly resisting. As it is highly unlikely that no combinations whatsoever will be effected, it is valuable to investigate a combination/merger scenario. This article provides some basic information on various models for merging institutions/ companies, that has been sourced from the literature regarding the private sector. The appropriateness of each model to the current higher education context must be extrapolated by reconfiguration of the information. Apossible model for higher education mergers, based on such extrapolation, is presented against the background of the National Plan for Higher Education, released on 5 March 2001. One of the advantages of this exercise is to contribute to the demystifying of the concept of mergers, i.e. “exorcising the ghost”. (South African Journal of Education: 2001 21(4): 273-279)
The Influence of the Deregulated Telecommunication Sector on Urban Employment Generation in Nigeria
M.M. Fasoranti
Journal of Economics Theory , 2012,
Abstract: The study examined employment generation through the deregulated telecommunication sector. The study which was conducted in Lagos metropolis among other things considered the socio-economic characteristic of GSM operators, the profitability and efficiency of GSM operations and the influence of some selected macro economic variables on income generated from the business. Data was sourced from both secondary and primary sources. Information was elicited from 80 respondents randomly selected from Mushin and Oshodi-Isolo within Lagos. The data collected was analysed with the aid of descriptive statistics, Gross margin and Net return analysis and multiple regression analysis. Findings show that majority of operators were educated youth with a mean age of about 29 years. Moreover, about 71.3% of total respondents were jobless before the inception of the GSM business. This shows that deregulation has actually reduced youth unemployment in the study area. Study also showed that GSM operation was profitable both in the short and long runs in the study area with N73,452, 36,627 and 86,105 as the mean gross margin, net returns and income, respectively. However, the return to scale analysis shows that operation is still in stage I of the production surface. Nevertheless, the factor inputs except education were efficiently allocated. The regression analysis shows that year of experience, cost of operation, amount of loans obtained and manday are significant factors in the GSM business. The study recommends an expansion in the scale of operation by the operators and greater access to credit and greater encouragement to uneducated unemployed youth by the government. The government should also persuade service providers to improve in their services and to also reduce service costs for operators.
The Influence of Rural Savings Mobilization on Economic Development of the Rural Areas: A Study of Akoko Region in Ondo State in Nigeria
M.M. Fasoranti
International Business Management , 2012,
Abstract: The study examined the influence of rural savings mobilization on the economic development of the rural dwellers. One hundred respondents were sampled with the aid of well structured questionnaire in Akoko North West and Akoko South East Local Government Areas of Ondo State. The study employed multistage sampling techniques. The study also covered Okada riders, petit traders, farmers, catering and food selling and tailoring associations. Result showed that age bracket 21-30 years participated most in rural savings mobilization followed by 31-40 years age bracket. The study also revealed that majority of the respondents had a minimum of primary education among other things, majority of the respondents are self employed. As for the purpose of loans obtained, 56% of total respondents used it to either improve or establish their businesses while 29 and 15% used it for human development (i.e., self and children education) and other unspecified purposes, respectively. The regression results showed that saving mobilization in the rural areas is positively related to investment, asset acquisition, human development and personal income. Hence these socio-economic variables will increase if savings mobilization through rural cooperative movement is encouraged among the rural dwellers. This is an indication that rural saving mobilization is an important factor in the economic development of the rural areas. Hence, rural dwellers should be encouraged to join atlease one rural cooperative society as this will empower them for better living.
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