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ECONOMIC GROWTH AND TRANSITION: A STOCHASTIC TECHNOLOGICAL DIFFUSION MODEL
HUI-YING SNG,SHAHIDUR RAHMAN,WAI-MUN CHIA 중앙대학교 경제연구소 2009 Journal of Economic Development Vol.34 No.2
This paper constructs a stochastic growth model that anchors on technology diffusion and improvement in social infrastructure to explain the growth of developing countries. The model is based on the technological diffusion model by Barro and Sala-i-Martin (1997) with two significant extensions: the (productivity) parameter in the model which represents social infrastructure is being endogenized and probability of adverse shocks is being incorporated. The stochastic technological diffusion model is able to explain the various economic growth and transition phases of developing economies. Technology diffusion is modeled as the determinant of conditional convergence, while technological progress and economic openness further strengthen the social infrastructure bringing about absolute convergence. The model is also able to explain why some developing economies experience economic take-off while others do not.
Heterosis in Pointed Gourd (Trichosanthes dioica Roxb.)
Md. Anwar Sadat,Mohammod Jalal Uddin,Md. Shahidur Rashid Bhuiyan 한국원예학회 2008 Horticulture, Environment, and Biotechnology Vol.49 No.6
An experiment was conducted with 17 F₁ hybrids of pointed gourd obtained by crossing one male parent with 17 female parents at the experimental farm of the Regional Agricultural Research Station, Ishurdi, Pabna. Significant differences were observed among the parents and hybrids for most of the 18 characters studied except fruit width. Both positive and negative heteroses were found for characters studied in the hybrids. Highly significant and positive heterosis was found in hybrid PG021 x M2 for fruit weight, pulp weight, dry matter content and yield per harvest. Also, significant and negative heterosis for early first flowering was observed in PG020 x M2, for first flower bearing node number in PG007 x M2. These hybrids might be useful in a future breeding program to exploit heterosis for better yield in pointed gourd.
Gobindha Kumar Saha,Ashit Kumar Paul,Abdussamad,M. Ariful Islam,M. Shahidur Rahman Khan 사단법인 한국동물생명공학회 2013 한국동물생명공학회지 Vol.28 No.4
Salmonellosis is one of the life-threating diseases of goat in Bangladesh. Therefore, the present study wasdesigned to study the prevalence of Salmonellosis, and isolation and characterizations of the Salmonella spp. fromapparently healthy and diarrheic goat. A total of 47 faces samples were collected from selected place and culturedonto different prescribed medium to isolate it. In this study, 12.76% (6/47) samples were found to be positive forSalmonella spp. During culture on SS agar medium, all of the Salmonella isolates produced round, smooth, opaque,translucent and black color colonies on SS agar media. All of the isolated Salmonella spp. fermented dextrose,maltose and mannitol with production of acid and gas but did not ferment sucrose and lactose. However, theseisolates had showed Indole and Voges-Proskauer test negative, Methyl-Red test positive. All of these isolates weresubjected to rapid plate agglutination test with polyvalent “O” (Poly ‘O’) and polyvalent “H” (poly ‘H’) antiserawhere positive agglutination were observed. They were highly sensitive to ciprofloxacin, spiramycin and gentamycin;moderately sensitive to oxytetracyline, streptomycin and amoxicillin; less sensitive to sulphamethoxazole and resistantto penicillin-G. Based on the present findings, it may be concluded that the investigated Salmonella spp. from goatsmight be S. typhimurium, S. enteritidis, S. brandenburg, S. salford, S. newbrunswick, S. newport or S. dublin. Furtherstudy will be needed, therefore it requires further characterization using other serological and molecular techniques.
Gobindha Kumar Saha,Ashit Kumar Paul,Abdussamad,M. Ariful Islam,M. Shahidur Rahman Khan 韓國受精卵移植學會 2013 한국동물생명공학회지 Vol.28 No.4
Salmonellosis is one of the life-threating diseases of goat in Bangladesh. Therefore, the present study was designed to study the prevalence of Salmonellosis, and isolation and characterizations of the Salmonella spp. from apparently healthy and diarrheic goat. A total of 47 faces samples were collected from selected place and cultured onto different prescribed medium to isolate it. In this study, 12.76% (6/47) samples were found to be positive for Salmonella spp. During culture on SS agar medium, all of the Salmonella isolates produced round, smooth, opaque, translucent and black color colonies on SS agar media. All of the isolated Salmonella spp. fermented dextrose, maltose and mannitol with production of acid and gas but did not ferment sucrose and lactose. However, these isolates had showed Indole and Voges-Proskauer test negative, Methyl-Red test positive. All of these isolates were subjected to rapid plate agglutination test with polyvalent “O” (Poly ‘O’) and polyvalent “H” (poly ‘H’) antisera where positive agglutination were observed. They were highly sensitive to ciprofloxacin, spiramycin and gentamycin; moderately sensitive to oxytetracyline, streptomycin and amoxicillin; less sensitive to sulphamethoxazole and resistant to penicillin-G. Based on the present findings, it may be concluded that the investigated Salmonella spp. from goats might be S. typhimurium, S. enteritidis, S. brandenburg, S. salford, S. newbrunswick, S. newport or S. dublin. Further study will be needed, therefore it requires further characterization using other serological and molecular techniques.
Saha, Gobindha Kumar,Paul, Ashit Kumar,Abdussamad, Abdussamad,Islam, M. Ariful,Khan, M. Shahidur Rahman The Korean Society of Embryo Transfer 2013 한국동물생명공학회지 Vol.28 No.4
Salmonellosis is one of the life-threating diseases of goat in Bangladesh. Therefore, the present study was designed to study the prevalence of Salmonellosis, and isolation and characterizations of the Salmonella spp. from apparently healthy and diarrheic goat. A total of 47 faces samples were collected from selected place and cultured onto different prescribed medium to isolate it. In this study, 12.76% (6/47) samples were found to be positive for Salmonella spp. During culture on SS agar medium, all of the Salmonella isolates produced round, smooth, opaque, translucent and black color colonies on SS agar media. All of the isolated Salmonella spp. fermented dextrose, maltose and mannitol with production of acid and gas but did not ferment sucrose and lactose. However, these isolates had showed Indole and Voges-Proskauer test negative, Methyl-Red test positive. All of these isolates were subjected to rapid plate agglutination test with polyvalent "O" (Poly 'O') and polyvalent "H" (poly 'H') antisera where positive agglutination were observed. They were highly sensitive to ciprofloxacin, spiramycin and gentamycin; moderately sensitive to oxytetracyline, streptomycin and amoxicillin; less sensitive to sulphamethoxazole and resistant to penicillin-G. Based on the present findings, it may be concluded that the investigated Salmonella spp. from goats might be S. typhimurium, S. enteritidis, S. brandenburg, S. salford, S. newbrunswick, S. newport or S. dublin. Further study will be needed, therefore it requires further characterization using other serological and molecular techniques.