Objective: To investigate the potential and early effect of hypertonic saline resuscitation on T-lymphocyte sub- populations in rats with hemorrhagic shock. Methods: A model of rat with severe hemorrhagic shock was es...Objective: To investigate the potential and early effect of hypertonic saline resuscitation on T-lymphocyte sub- populations in rats with hemorrhagic shock. Methods: A model of rat with severe hemorrhagic shock was established in 18 Sprague-Dawley (SD) rats. The rats were randomly divided into Sham group, HTS group (hypertonic saline resuscitation group) and NS group (normal saline resuscitation group). Each group contained 6 rats. The CD4+ and CD8+ subpopulations of T-lymphocytes in peripheral blood were detected respectively before shock and after resuscitation by double antibody labelling and flow cytometry. Results: In the early stage after hemorrhagic shock, fluid resuscitation and emergency treatment, the CD4+ lymphocytes of peripheral blood in HTS and NS groups markedly increased. Small volume resuscitation with HTS also induced peripheral CD8+ lymphocytes to a certain extent, whereas NS resuscitation showed no effect in this respect. Consequently, compared with Sham and HTS groups, CD4+/CD8+ ratio of peripheral blood in NS group was obviously increased, and showed statistically differences. Conclusion: In this model of rat with severe hemorrhagic shock, small volume resuscitation with HTS is more effective than NS in reducing immunologic disorders and promoting a more balanced profile of T-lymphocyte subpopula- tions regulating network.展开更多
The Songnen Plain has a typical soda-saline soil, which often shrinks and cracks under natural conditions during water evaporation. This study aims to analyze the relationships between the crack characteristics and th...The Songnen Plain has a typical soda-saline soil, which often shrinks and cracks under natural conditions during water evaporation. This study aims to analyze the relationships between the crack characteristics and the soil properties of soda-saline soils quantitatively, and attempts to establish prediction models for the main soil properties of soda-saline soils based on the results. In order to achieve these objectives, a desiccation cracking test was conducted using 17 soil specimens with different salinity levels under controlled laboratory conditions. Correlation analysis was then performed between the crack characteristics and the soil properties. The results indicate that the crack characteristics can well represent the surface appearances of cracked soils, they also can well distinguish the salinity levels of soda-saline soils while the clay contents and mineralogical compositions of soils are stable. Among the crack characteristics, crack length has the best relationships with the salinity levels of soda-saline soils. Specifically, the crack length has high correlation(R2 > 0.87) with the electrical conductivity(EC), Na+, CO32– and the salinity, it also has reasonable relationship(R2 > 0.68) with HCO3–, this indicates crack length can be well used for the prediction of these properties of soda-saline soils.展开更多
In recent years, grafting to improve salt-tolerance of vegetables has been studied extensively. The rootstock species, Solanum melongena cv Black Beauty, Solanum lycopersicum cv Akash and Solanum nigrum （bitter gumma...In recent years, grafting to improve salt-tolerance of vegetables has been studied extensively. The rootstock species, Solanum melongena cv Black Beauty, Solanum lycopersicum cv Akash and Solanum nigrum （bitter gumma）, reportedly salt-tolerant, were evaluated for their graft compatibility with Capsicum chinense cv Scotch Bonnet. Grafted and non-grafted plants were grown for three weeks under greenhouse conditions. Graft compatibility was determined by the regeneration of vascular bundles across the graft interface and vegetative growth parameters. The results showed that the highest survival percentage （100%） was obtained in the Scotch Bonnet/Black Beauty heterografts and the lowest （16%） was obtained in the Scotch Bonnet/bitter gumma heterografts. Vascular regeneration across the graft interface was seen in Scotch Bonnet autografts and heterografts with Black Beauty. Graft incompatibility observed in heterografts on Akash and bitter gumma rootstocks could be attributed to the presence of a necrotic layer at the graft interface. In conclusion, progressive scion growth and development and the regeneration of vascular bundles across the graft interface are effective in determining graft compatibility between Scotch Bonnet and selected solanceous species. This suggests that Scotch Bonnet can be cultivated under saline growing condition.展开更多
The present research was conducted to monitor the wheat productivity along with residue incorporation under saline-sodic soils by examining different planting methods at Zaidi Farm, Kakar Gill, Sheikhupura District, P...The present research was conducted to monitor the wheat productivity along with residue incorporation under saline-sodic soils by examining different planting methods at Zaidi Farm, Kakar Gill, Sheikhupura District, Punjab Province in 2007-2008. Randomized Complete Block Design （RCBD） with three replications was used having treatments： control （broadcast）, zero till wheat plantation, wheat plantation using happy seeder and wheat plantation on raised beds. It was observed that tillering was pretty higher （141 and 139 m2） under raised bed as well as happy seeder plantation as compared to zero tilled wheat and broadcast technique. A significant relation was detected among maximum straw and grain yield （4,898 and 1,752 kg-ha1） in raised bed followed by happy seeder planting method. The lowest grain yield was recorded in the broadcast method. Maximum net revenue earned by raised bed planting method （39,908 PKR） followed by happy seeder methodology （37,533 PKR）. The overall study suggests that raised bed and happy seeder wheat plantation are the superior planting methods.展开更多
The purpose of this work is to find a new way for utilizing the rich sodium sulfate resource to produce soda ash. A novel process is proposed which uses aqueous dichromate solution as working medium through decomposit...The purpose of this work is to find a new way for utilizing the rich sodium sulfate resource to produce soda ash. A novel process is proposed which uses aqueous dichromate solution as working medium through decomposition of calcium carbonate in aqueous sodium dichromate, complex decomposition of aqueous sodium sulfate and calcium chromate, regeneration of sodium dichromate and production of sodium bicarbonate from carbonation of aqueous sodium chromate solution, processing and utilization of byproduct calcium sulfate, and production of sodium carbonate from sodium bicarbonate. The process has the features of less corrosion and pollution and low energy consumption.展开更多
文摘Objective: To investigate the potential and early effect of hypertonic saline resuscitation on T-lymphocyte sub- populations in rats with hemorrhagic shock. Methods: A model of rat with severe hemorrhagic shock was established in 18 Sprague-Dawley (SD) rats. The rats were randomly divided into Sham group, HTS group (hypertonic saline resuscitation group) and NS group (normal saline resuscitation group). Each group contained 6 rats. The CD4+ and CD8+ subpopulations of T-lymphocytes in peripheral blood were detected respectively before shock and after resuscitation by double antibody labelling and flow cytometry. Results: In the early stage after hemorrhagic shock, fluid resuscitation and emergency treatment, the CD4+ lymphocytes of peripheral blood in HTS and NS groups markedly increased. Small volume resuscitation with HTS also induced peripheral CD8+ lymphocytes to a certain extent, whereas NS resuscitation showed no effect in this respect. Consequently, compared with Sham and HTS groups, CD4+/CD8+ ratio of peripheral blood in NS group was obviously increased, and showed statistically differences. Conclusion: In this model of rat with severe hemorrhagic shock, small volume resuscitation with HTS is more effective than NS in reducing immunologic disorders and promoting a more balanced profile of T-lymphocyte subpopula- tions regulating network.
基金Under the auspices of National Natural Science Foundation of China(No.41201335)
文摘The Songnen Plain has a typical soda-saline soil, which often shrinks and cracks under natural conditions during water evaporation. This study aims to analyze the relationships between the crack characteristics and the soil properties of soda-saline soils quantitatively, and attempts to establish prediction models for the main soil properties of soda-saline soils based on the results. In order to achieve these objectives, a desiccation cracking test was conducted using 17 soil specimens with different salinity levels under controlled laboratory conditions. Correlation analysis was then performed between the crack characteristics and the soil properties. The results indicate that the crack characteristics can well represent the surface appearances of cracked soils, they also can well distinguish the salinity levels of soda-saline soils while the clay contents and mineralogical compositions of soils are stable. Among the crack characteristics, crack length has the best relationships with the salinity levels of soda-saline soils. Specifically, the crack length has high correlation(R2 > 0.87) with the electrical conductivity(EC), Na+, CO32– and the salinity, it also has reasonable relationship(R2 > 0.68) with HCO3–, this indicates crack length can be well used for the prediction of these properties of soda-saline soils.
文摘In recent years, grafting to improve salt-tolerance of vegetables has been studied extensively. The rootstock species, Solanum melongena cv Black Beauty, Solanum lycopersicum cv Akash and Solanum nigrum （bitter gumma）, reportedly salt-tolerant, were evaluated for their graft compatibility with Capsicum chinense cv Scotch Bonnet. Grafted and non-grafted plants were grown for three weeks under greenhouse conditions. Graft compatibility was determined by the regeneration of vascular bundles across the graft interface and vegetative growth parameters. The results showed that the highest survival percentage （100%） was obtained in the Scotch Bonnet/Black Beauty heterografts and the lowest （16%） was obtained in the Scotch Bonnet/bitter gumma heterografts. Vascular regeneration across the graft interface was seen in Scotch Bonnet autografts and heterografts with Black Beauty. Graft incompatibility observed in heterografts on Akash and bitter gumma rootstocks could be attributed to the presence of a necrotic layer at the graft interface. In conclusion, progressive scion growth and development and the regeneration of vascular bundles across the graft interface are effective in determining graft compatibility between Scotch Bonnet and selected solanceous species. This suggests that Scotch Bonnet can be cultivated under saline growing condition.
文摘The present research was conducted to monitor the wheat productivity along with residue incorporation under saline-sodic soils by examining different planting methods at Zaidi Farm, Kakar Gill, Sheikhupura District, Punjab Province in 2007-2008. Randomized Complete Block Design （RCBD） with three replications was used having treatments： control （broadcast）, zero till wheat plantation, wheat plantation using happy seeder and wheat plantation on raised beds. It was observed that tillering was pretty higher （141 and 139 m2） under raised bed as well as happy seeder plantation as compared to zero tilled wheat and broadcast technique. A significant relation was detected among maximum straw and grain yield （4,898 and 1,752 kg-ha1） in raised bed followed by happy seeder planting method. The lowest grain yield was recorded in the broadcast method. Maximum net revenue earned by raised bed planting method （39,908 PKR） followed by happy seeder methodology （37,533 PKR）. The overall study suggests that raised bed and happy seeder wheat plantation are the superior planting methods.
基金Supported by the National Natural Science Foundation of China (No. 50234040) the High-Technology Research and Development Program of China (No. 2001AA6407010).
文摘The purpose of this work is to find a new way for utilizing the rich sodium sulfate resource to produce soda ash. A novel process is proposed which uses aqueous dichromate solution as working medium through decomposition of calcium carbonate in aqueous sodium dichromate, complex decomposition of aqueous sodium sulfate and calcium chromate, regeneration of sodium dichromate and production of sodium bicarbonate from carbonation of aqueous sodium chromate solution, processing and utilization of byproduct calcium sulfate, and production of sodium carbonate from sodium bicarbonate. The process has the features of less corrosion and pollution and low energy consumption.
