Objective: To explore the effect of pe rc utaneous vertebroplasty to treat osteoporotic vertebral body compression fractur es. Methods: Seventeen patients with compression fractures at 27 different levels came in for...Objective: To explore the effect of pe rc utaneous vertebroplasty to treat osteoporotic vertebral body compression fractur es. Methods: Seventeen patients with compression fractures at 27 different levels came in for percutaneous vertebroplasty. Under the guidance of C-arm image intensifier, bone needle was inserted into the fracture vertebral bodies via a unilateral transpedicular approach. Polymethyl methacrylate (PMMA) w as injected slowly under continuous fluoroscopic control. Then the effect was ev aluated after operation. Results: Follow-up results among 15 pa tients were studied, other two patients lost contact. The follow-up period was from three to seven months. No patient had relapse of compression fracture. Leak age of the cement outside the vertebral body was seen in four bodies. All patien ts had a complete relief after Percutaneous vertebroplasty(PVP). Conclus ion: PVP is an efficient minimally invasive technique to treat osteoporo tic vertebral body compression fractures.展开更多
Nonylphenol （NP） is the final degradation product of alkylphenol polyethoxylates （APEs）, which are widely present in plastics, papers, pulp, detergents, pesticides, herbicides, paints and cosmetics. It is estimate...Nonylphenol （NP） is the final degradation product of alkylphenol polyethoxylates （APEs）, which are widely present in plastics, papers, pulp, detergents, pesticides, herbicides, paints and cosmetics. It is estimated that annual global production of APEs is about 500000 t, 60% of which eventually ends up in aquatic ecosystems primarily via wastewater （So16 et cd., 2000）. NP is resistant to biodegradation and persistent in the environment （Arukwe et al., 2000）.展开更多
Purebred microorganisms were employed to upgrade the fermentation process of Zhejiang rosy vinegar. The fermentation cycle was greatly shorten from 5 months to 72 d. The transformation rate of raw materials was increa...Purebred microorganisms were employed to upgrade the fermentation process of Zhejiang rosy vinegar. The fermentation cycle was greatly shorten from 5 months to 72 d. The transformation rate of raw materials was increased from 1:4.5 in the traditional fermentation to 1:5 or more in the upgraded fermentation. The content of organic acids in the traditional vinegar (TRV), the upgraded vinegar (UPV) and the submerged fermentation vinegar (SFV) were also investigated by HPLC. No significant difference was found regarding the proportion of phenylethanol to the total volatile components in UPV (7.47% ± 0.00324%) and TRV (7.23% ± 0.00329%), but it was significantly higher than that in SFV (2.26% ± 0.00143%). This study provides deep insight into upgrading the fermentation process of Zhejiang rosy vinegar by purebred microorganisms.展开更多
A Danxia landform is a red-bed landform characterized by steep cliffs. It was initially discovered and named by Chinese scholars. Although there are red-bed landforms in many parts of the world, China, with a special ...A Danxia landform is a red-bed landform characterized by steep cliffs. It was initially discovered and named by Chinese scholars. Although there are red-bed landforms in many parts of the world, China, with a special fondness for the color red, boasts the most widely distributed Danxia possessing unique characteristics. This is a mesmerizing natural formation and a special gift that nature has bestowed upon this country.展开更多
Hami City is the main locust plague area in Xinjiang.In the past,chemical pesticide control of locusts was mainly adopted,which not only cost a lot of manpower,material and financial resources,but also killed natural ...Hami City is the main locust plague area in Xinjiang.In the past,chemical pesticide control of locusts was mainly adopted,which not only cost a lot of manpower,material and financial resources,but also killed natural enemies of locusts and other insects due to the extensive use of chemical pesticides.As a result,the natural ecological environment of grassland was damaged and polluted to varying degrees,while the grassland ecosystem was deteriorating day by day.Since 2004,the prevention and control of grassland locusts has been carried out by chicken herding,duck herding,nesting for attracting birds,as well as biological and plant pesticides.In particular,the proportion of rosy starling control technology in grassland locust control has increased year by year,and the grassland ecosystem has recovered significantly.展开更多
China maintains financial health,though risks loom large On September 17,the People’s Bank of China,the central ’bank,released the 2010 China Financial Stability Report,offer-ing a glimpse of China’s financial land...China maintains financial health,though risks loom large On September 17,the People’s Bank of China,the central ’bank,released the 2010 China Financial Stability Report,offer-ing a glimpse of China’s financial landscape.展开更多
文摘Objective: To explore the effect of pe rc utaneous vertebroplasty to treat osteoporotic vertebral body compression fractur es. Methods: Seventeen patients with compression fractures at 27 different levels came in for percutaneous vertebroplasty. Under the guidance of C-arm image intensifier, bone needle was inserted into the fracture vertebral bodies via a unilateral transpedicular approach. Polymethyl methacrylate (PMMA) w as injected slowly under continuous fluoroscopic control. Then the effect was ev aluated after operation. Results: Follow-up results among 15 pa tients were studied, other two patients lost contact. The follow-up period was from three to seven months. No patient had relapse of compression fracture. Leak age of the cement outside the vertebral body was seen in four bodies. All patien ts had a complete relief after Percutaneous vertebroplasty(PVP). Conclus ion: PVP is an efficient minimally invasive technique to treat osteoporo tic vertebral body compression fractures.
基金The Hi-Tech Research and Development Program (863) of China (No. 2001AA649040)
文摘Nonylphenol （NP） is the final degradation product of alkylphenol polyethoxylates （APEs）, which are widely present in plastics, papers, pulp, detergents, pesticides, herbicides, paints and cosmetics. It is estimated that annual global production of APEs is about 500000 t, 60% of which eventually ends up in aquatic ecosystems primarily via wastewater （So16 et cd., 2000）. NP is resistant to biodegradation and persistent in the environment （Arukwe et al., 2000）.
文摘Purebred microorganisms were employed to upgrade the fermentation process of Zhejiang rosy vinegar. The fermentation cycle was greatly shorten from 5 months to 72 d. The transformation rate of raw materials was increased from 1:4.5 in the traditional fermentation to 1:5 or more in the upgraded fermentation. The content of organic acids in the traditional vinegar (TRV), the upgraded vinegar (UPV) and the submerged fermentation vinegar (SFV) were also investigated by HPLC. No significant difference was found regarding the proportion of phenylethanol to the total volatile components in UPV (7.47% ± 0.00324%) and TRV (7.23% ± 0.00329%), but it was significantly higher than that in SFV (2.26% ± 0.00143%). This study provides deep insight into upgrading the fermentation process of Zhejiang rosy vinegar by purebred microorganisms.
文摘A Danxia landform is a red-bed landform characterized by steep cliffs. It was initially discovered and named by Chinese scholars. Although there are red-bed landforms in many parts of the world, China, with a special fondness for the color red, boasts the most widely distributed Danxia possessing unique characteristics. This is a mesmerizing natural formation and a special gift that nature has bestowed upon this country.
文摘Hami City is the main locust plague area in Xinjiang.In the past,chemical pesticide control of locusts was mainly adopted,which not only cost a lot of manpower,material and financial resources,but also killed natural enemies of locusts and other insects due to the extensive use of chemical pesticides.As a result,the natural ecological environment of grassland was damaged and polluted to varying degrees,while the grassland ecosystem was deteriorating day by day.Since 2004,the prevention and control of grassland locusts has been carried out by chicken herding,duck herding,nesting for attracting birds,as well as biological and plant pesticides.In particular,the proportion of rosy starling control technology in grassland locust control has increased year by year,and the grassland ecosystem has recovered significantly.
文摘China maintains financial health,though risks loom large On September 17,the People’s Bank of China,the central ’bank,released the 2010 China Financial Stability Report,offer-ing a glimpse of China’s financial landscape.
