The origin, classification, utilization and evaluation of germplasm resources, and breeding methods were introduced. The researches of biotic or/and abiotic stress, exploration of genomics and proteomics in common bea...The origin, classification, utilization and evaluation of germplasm resources, and breeding methods were introduced. The researches of biotic or/and abiotic stress, exploration of genomics and proteomics in common bean in recent years were reviewed in this paper, in order to provide theoretical reference for utilization and innovation of germplasm resources in common bean.展开更多
We investigate the collective synchronization of cicada chirping. Using both experimental and phenomeno- logical numerical techniques, here we show that the onset of a periodic two-state acoustic synchronous behavior ...We investigate the collective synchronization of cicada chirping. Using both experimental and phenomeno- logical numerical techniques, here we show that the onset of a periodic two-state acoustic synchronous behavior in cicada chorus depends on a critical size of population Nc=21, above which a typical chorus state appears periodically with a 30 second-silence state in between, and further clarify its possibility concerning a new class of phase transition, which is unusually driven by population. This work has relevance to acoustic synchronization and to general physics of phase transition.展开更多
A study was conducted at two pair sites of Chittagong Hill Tracts in Bangladesh to find out the effects of shifting cultivation on soil fungi and bacterial population. The first pair of sites with shifting culti-vatio...A study was conducted at two pair sites of Chittagong Hill Tracts in Bangladesh to find out the effects of shifting cultivation on soil fungi and bacterial population. The first pair of sites with shifting culti-vation and village common forest-managed by indigenous community was at Madhya Para in Rangamati district and the second pair of sites with the shifting cultivated land and village common forest at Ampu Para in Bandarban district of Chittagong Hill Tracts. At both the locations with two different land uses, soil textures in surface （0？10 cm） and sub-surface （10？20 cm） soils varied from sandy loam to sandy clay loam. Soil pH and moisture content were lower in shifting cultivated land com-pared to village common forest. The results also showed that both fungal and bacterial population in surface and subsurface soils was significantly （p ≤ 0.05） lower, in most cases, in shifting cultivated land compared to village common forest at both Madhya Para and Ampu Para. At Ranga-mati and Bandarban in shifting cultivated lands, Colletrotrichum and Fusarium fungi were absent and all the bacterial genus viz. Coccus, Bacillus and Streptococcus common in two different locations with dif-ferent land uses. Common identified fungi at both the land uses and locations were Aspergillus, Rhizopus, Trichoderma and Penicillium. Further study can be done on the other soil biota to understand the extent of environmental deterioration due to shifting cultivation.展开更多
The Thai mahseer is one of the high-value freshwater fish species, especially m Malaysia where it is cultured commercially but poorly known in Thailand. This paper reviews a recent knowledge necessary for commercial c...The Thai mahseer is one of the high-value freshwater fish species, especially m Malaysia where it is cultured commercially but poorly known in Thailand. This paper reviews a recent knowledge necessary for commercial culture of Thai mahseer based on the breeding and rearing practices in Malaysia. Breeding data shows that this species can be spawned all year round. On average, the size of mature female that can be induced to spawn is 678 mm total length （TL） and 3,817 g in weight and the size of mature male is 599 mm TL and 2,414 g in weight. Induced spawning using an analogue of sGnRH Ovaprim at 0.5 ml/kg body weight （BW） is the most successful hormone treatment and dosage for Thai mahseer. The average number of eggs is 875 egg/kg BW. Eggs of the Thai mahseer are spherical, demersal and non-sticky, and hatching occurs 69-90 hours post-fertilization. At 60 weeks of age, average body weight is 179 g. Polynomial regression analysis revealed a maximum specific growth rate at 48% dietary protein. General biology, water quality requirements, feeding strategies and genetic structure of the Thai mahseer are also summarized in this paper.展开更多
Abstract： Viral diseases are an important limiting factor in many crop production systems in Azerbaijan. Symptomatic plants in main crop-producing areas were tested by ELISA （enzyme-linked immunosorbent assay） usin...Abstract： Viral diseases are an important limiting factor in many crop production systems in Azerbaijan. Symptomatic plants in main crop-producing areas were tested by ELISA （enzyme-linked immunosorbent assay） using specific monoclonal and polyclonal antibodies. Then RCA （rolling circle amplification） of circular DNA and PCR using different specific primer pairs have indicated that the tested symptomatic plant samples were completely infected by the following viruses： Luteovirus [BLRV （Bean leaf roll virus）], Potyviruses [BCMV （Bean common mosaic virus）, BYMV （Bean yellow mosaic virus）], Bromovirus [（AMV） Alfa-alfa mosaic virus], Geminiviruses [CpCDV （ Cickpea chlorotic dwarf virus） and TYLCV （Tomato yellow leaf curl virus）] and Nanoviruses [two different FBNYV （Faba bean necrotic yellow virus） and FBNSV （Faba bean necrotic stunt virus）]. At the same time generation sites of superoxide and hydrogen peroxide radicals and activity of antioxidant enzymes were studied in the naturally infected plants.展开更多
Property investment in Malaysia is increasingly popular among local and foreign investors. The strong support by the government through the relaxation and lifting of certain restrictions and regulations on property ow...Property investment in Malaysia is increasingly popular among local and foreign investors. The strong support by the government through the relaxation and lifting of certain restrictions and regulations on property ownerships, have attracted investments in the Malaysian property market. This research studies the factors affecting the performance of 36 property firms listed on the Main Board of Bursa Malaysia from 2003 to 2007. This research employed ordinary least squares （OLS） method to represent all the variables comprising stock performance, return on assets （ROA）, return on equity （ROE）, debt ratio （DR）, net profit margin （NPM）, effective tax rate （ETR）, earnings per share （EPS）, and price earning （PE） ratio. Results show that ROA, ROE, and EPS have strong significant relationships with the property stock performance. Although it is a small sample size, some relevant changes and modifications can be included in future studies to obtain better results.展开更多
The spatial distribution of extracellular polymeric substances （EPS） in a pilot-scale membrane bioreactor （MBR） was studied. The sampling points on top of and inside the membrane module were measured and analyzed ...The spatial distribution of extracellular polymeric substances （EPS） in a pilot-scale membrane bioreactor （MBR） was studied. The sampling points on top of and inside the membrane module were measured and analyzed by the experimental variant function. The content of EPS was spatially interpolated by ordinary Kriging method, and il- lustrated with SURFER software. A case study was carried out in an MBR with membrane aperture of 0.4 ~tm and handling capacity of 120 ma/d in Jizhuangzi sewage treatment plant, Tianjin. From the visualization of EPS distribu- tion, it is seen that on the horizontal plane, the content of EPS was the lowest at the center; and on the vertical plane, the content of EPS decreased with the increase of depth. The shearing force caused by aeration of perforated pipe and the influent mode are the main influencing factors for this distribution.展开更多
基金Supported by Postdoctor Initial Funding Project from Northeast China Agricultural Innovation Center(2013-2015)Fund for Overseas Students from the Personnel Department of Jilin Province(3140101)~~
文摘The origin, classification, utilization and evaluation of germplasm resources, and breeding methods were introduced. The researches of biotic or/and abiotic stress, exploration of genomics and proteomics in common bean in recent years were reviewed in this paper, in order to provide theoretical reference for utilization and innovation of germplasm resources in common bean.
基金supported by the National Natural Science Foundation of China under Grant Nos. 10604014 and 10874025the Shanghai Education Committee and the Shanghai Education Development Foundation ("Shu Guang" project under Grant No. 05SG01)+2 种基金the Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education Ministry, ChinaChinese National Key Basic Research Special Fund under Grant No. 2006CB921706by National Fund for Talent Training in Basic Science under Grant No. J0730310
文摘We investigate the collective synchronization of cicada chirping. Using both experimental and phenomeno- logical numerical techniques, here we show that the onset of a periodic two-state acoustic synchronous behavior in cicada chorus depends on a critical size of population Nc=21, above which a typical chorus state appears periodically with a 30 second-silence state in between, and further clarify its possibility concerning a new class of phase transition, which is unusually driven by population. This work has relevance to acoustic synchronization and to general physics of phase transition.
基金This study was supported by United States Depart-ment of Agriculture (USDA), Grant No.: BG-ARS-123
文摘A study was conducted at two pair sites of Chittagong Hill Tracts in Bangladesh to find out the effects of shifting cultivation on soil fungi and bacterial population. The first pair of sites with shifting culti-vation and village common forest-managed by indigenous community was at Madhya Para in Rangamati district and the second pair of sites with the shifting cultivated land and village common forest at Ampu Para in Bandarban district of Chittagong Hill Tracts. At both the locations with two different land uses, soil textures in surface （0？10 cm） and sub-surface （10？20 cm） soils varied from sandy loam to sandy clay loam. Soil pH and moisture content were lower in shifting cultivated land com-pared to village common forest. The results also showed that both fungal and bacterial population in surface and subsurface soils was significantly （p ≤ 0.05） lower, in most cases, in shifting cultivated land compared to village common forest at both Madhya Para and Ampu Para. At Ranga-mati and Bandarban in shifting cultivated lands, Colletrotrichum and Fusarium fungi were absent and all the bacterial genus viz. Coccus, Bacillus and Streptococcus common in two different locations with dif-ferent land uses. Common identified fungi at both the land uses and locations were Aspergillus, Rhizopus, Trichoderma and Penicillium. Further study can be done on the other soil biota to understand the extent of environmental deterioration due to shifting cultivation.
文摘The Thai mahseer is one of the high-value freshwater fish species, especially m Malaysia where it is cultured commercially but poorly known in Thailand. This paper reviews a recent knowledge necessary for commercial culture of Thai mahseer based on the breeding and rearing practices in Malaysia. Breeding data shows that this species can be spawned all year round. On average, the size of mature female that can be induced to spawn is 678 mm total length （TL） and 3,817 g in weight and the size of mature male is 599 mm TL and 2,414 g in weight. Induced spawning using an analogue of sGnRH Ovaprim at 0.5 ml/kg body weight （BW） is the most successful hormone treatment and dosage for Thai mahseer. The average number of eggs is 875 egg/kg BW. Eggs of the Thai mahseer are spherical, demersal and non-sticky, and hatching occurs 69-90 hours post-fertilization. At 60 weeks of age, average body weight is 179 g. Polynomial regression analysis revealed a maximum specific growth rate at 48% dietary protein. General biology, water quality requirements, feeding strategies and genetic structure of the Thai mahseer are also summarized in this paper.
文摘Abstract： Viral diseases are an important limiting factor in many crop production systems in Azerbaijan. Symptomatic plants in main crop-producing areas were tested by ELISA （enzyme-linked immunosorbent assay） using specific monoclonal and polyclonal antibodies. Then RCA （rolling circle amplification） of circular DNA and PCR using different specific primer pairs have indicated that the tested symptomatic plant samples were completely infected by the following viruses： Luteovirus [BLRV （Bean leaf roll virus）], Potyviruses [BCMV （Bean common mosaic virus）, BYMV （Bean yellow mosaic virus）], Bromovirus [（AMV） Alfa-alfa mosaic virus], Geminiviruses [CpCDV （ Cickpea chlorotic dwarf virus） and TYLCV （Tomato yellow leaf curl virus）] and Nanoviruses [two different FBNYV （Faba bean necrotic yellow virus） and FBNSV （Faba bean necrotic stunt virus）]. At the same time generation sites of superoxide and hydrogen peroxide radicals and activity of antioxidant enzymes were studied in the naturally infected plants.
文摘Property investment in Malaysia is increasingly popular among local and foreign investors. The strong support by the government through the relaxation and lifting of certain restrictions and regulations on property ownerships, have attracted investments in the Malaysian property market. This research studies the factors affecting the performance of 36 property firms listed on the Main Board of Bursa Malaysia from 2003 to 2007. This research employed ordinary least squares （OLS） method to represent all the variables comprising stock performance, return on assets （ROA）, return on equity （ROE）, debt ratio （DR）, net profit margin （NPM）, effective tax rate （ETR）, earnings per share （EPS）, and price earning （PE） ratio. Results show that ROA, ROE, and EPS have strong significant relationships with the property stock performance. Although it is a small sample size, some relevant changes and modifications can be included in future studies to obtain better results.
基金Supported by Special Fund Project for Technology Innovation of Tianjin (No.06FZZDSH00900)
文摘The spatial distribution of extracellular polymeric substances （EPS） in a pilot-scale membrane bioreactor （MBR） was studied. The sampling points on top of and inside the membrane module were measured and analyzed by the experimental variant function. The content of EPS was spatially interpolated by ordinary Kriging method, and il- lustrated with SURFER software. A case study was carried out in an MBR with membrane aperture of 0.4 ~tm and handling capacity of 120 ma/d in Jizhuangzi sewage treatment plant, Tianjin. From the visualization of EPS distribu- tion, it is seen that on the horizontal plane, the content of EPS was the lowest at the center; and on the vertical plane, the content of EPS decreased with the increase of depth. The shearing force caused by aeration of perforated pipe and the influent mode are the main influencing factors for this distribution.
