<strong>Background:</strong> The pure arterial malformation (PAM) lesion has been recently described as a vascular pathology characterized by the sole presence of coiled, sometimes ectatic, arterial loops....<strong>Background:</strong> The pure arterial malformation (PAM) lesion has been recently described as a vascular pathology characterized by the sole presence of coiled, sometimes ectatic, arterial loops. 2% of the fusiform aneurysms are located in the vertebral-posterior inferior cerebellar arteries. <strong>Case Presentation:</strong> A 60 years old female with subarachnoid hemorrhage was diagnosed with a fusiform aneurysm in the right PICA related with a PAM in the digital subtraction angiography (DSA). With a negative super-selective Wada test, the patient was treated with embolization of the two lesions and the PICA for being in the same arterial territory with adhesive embolic liquid under roadmap fluoroscopy technique. The patient had a satisfactory clinical evolution and no added neurological deficit, so she was discharged 3 days after the treatment. <strong>Conclusion:</strong> These two vascular lesions located in the same artery are very rare and more in the PICA territory. It is important to make the best decision to treat them because of the potential complications;that’s why the procedure was supported with super-selective Wada test and neuromonitoring of the PICA territory. The injection of the mixture of NBCA and Lipiodol<span style="white-space:nowrap;"><sup>®</sup></span> under roadmap fluoroscopy is very safe.展开更多
Unique species of tree,selective nutrients absorption and special environmental effects of pure plantation may lead to soil degradation.So study on the biochemical characteristics of soil and its reaction to external ...Unique species of tree,selective nutrients absorption and special environmental effects of pure plantation may lead to soil degradation.So study on the biochemical characteristics of soil and its reaction to external C and N disturbances of pure plantation can theoretically direct the nutrients management of forestland and control of soil degradation.According to fix-positional soil sampling,determining and field disturbance experiments in 4 typical pure plantation of larix kaempferi,Pinus tabulaeformis,Catalpa fargesii and Quercus aliena var.acuteserrata in Qinling Mountain,we can get following conclusions:Contents of organic-C,total N,enzyme activities of urease,amounts of microbes and contents of micro-biomass C and N in soil of broad-leaved forests are all more than its of needle-leaved forests except for enzyme activities of sucrase and catalase.External fertilization of C(cane sugar)can popularly raise the enzyme activities of urease,sucrase and catalase,amounts of microbes and contents of micro-biomass C and N,and rates of litter decomposition of planted forests(both needle-leaved forests and broad-leaved forests).External fertilization of N(urea)can raise the enzyme activities of urease,amounts of microbes and contents of micro-biomass C and N,and rates of litter decomposition of needle-leaved forests,but lower the involved biochemical indices of broad-leaved forests.In summary,as a whole,broad-leaved forests are conductive to soil improvement,whereas,needle-leaved forests are harmful.Both C and N are limited nutrients for biochemical characteristics of needle-leaved forests,whereas,only C is limited for broad-leaved forests,and N is not lack,more N has no good but is harmful.展开更多
The benzophenone-initiated photoaddition of N-methyl ammes 2 to the chiral synthon1 proceeds in a regiospecitlc and highlyr stereocontrolled thshion to give the C-C photoadductscontaining a ne\viy stereogenic center 3...The benzophenone-initiated photoaddition of N-methyl ammes 2 to the chiral synthon1 proceeds in a regiospecitlc and highlyr stereocontrolled thshion to give the C-C photoadductscontaining a ne\viy stereogenic center 3a-3c. The enantiomerically pure N-C photoadducts, aminobutenolides 5a-5c have been obtained from the enantioselective photoaddition of secondary cyclicammes 4 with the chiral synthon 1 under the same conditions.展开更多
[ Objective] The paper was to study pathogenic mechanism and action mode of Bacillus thuringiensis （Bt） 00-50-5 strain against Trichoplusia ni Hub- ner. [Method] The crystals and spores of B. thuringiensis 00-50-5 s...[ Objective] The paper was to study pathogenic mechanism and action mode of Bacillus thuringiensis （Bt） 00-50-5 strain against Trichoplusia ni Hub- ner. [Method] The crystals and spores of B. thuringiensis 00-50-5 strain were first isolated and purified, and their insecticidal activities against T. ni were com- pared. [ Result] Either the mixture of pure crystals and pure spores of 00-50-5 strain, or only pure crystals could kill T. n/larvae under the concentration of 100 p.g/mL after 48 h, and the mortality rate reached 100% ; pure spores could not kill the larvae. Determination results of median lethal concentration showed that in- secticidal activity of pure crystal of Bt 00-50-5 strain （LGs0 =0.32 p~/mL） was higher than the mixture of crystals and spores （LCs0 =0.48）, but the insecticidal acti^ty of pure spores was very low （LC50 〉 500.00）. Therefore, the crystals were primarily responsible for causing death of larvae. [ Conclusion] The paper provides theoretical basis for application of Bt 00-50-5 strain.展开更多
文摘<strong>Background:</strong> The pure arterial malformation (PAM) lesion has been recently described as a vascular pathology characterized by the sole presence of coiled, sometimes ectatic, arterial loops. 2% of the fusiform aneurysms are located in the vertebral-posterior inferior cerebellar arteries. <strong>Case Presentation:</strong> A 60 years old female with subarachnoid hemorrhage was diagnosed with a fusiform aneurysm in the right PICA related with a PAM in the digital subtraction angiography (DSA). With a negative super-selective Wada test, the patient was treated with embolization of the two lesions and the PICA for being in the same arterial territory with adhesive embolic liquid under roadmap fluoroscopy technique. The patient had a satisfactory clinical evolution and no added neurological deficit, so she was discharged 3 days after the treatment. <strong>Conclusion:</strong> These two vascular lesions located in the same artery are very rare and more in the PICA territory. It is important to make the best decision to treat them because of the potential complications;that’s why the procedure was supported with super-selective Wada test and neuromonitoring of the PICA territory. The injection of the mixture of NBCA and Lipiodol<span style="white-space:nowrap;"><sup>®</sup></span> under roadmap fluoroscopy is very safe.
基金Project(51171125)supported by the National Natural Science Foundation of ChinaProject(2012011021-3)supported by the Natural Science Foundation of Shanxi Province,China
文摘Unique species of tree,selective nutrients absorption and special environmental effects of pure plantation may lead to soil degradation.So study on the biochemical characteristics of soil and its reaction to external C and N disturbances of pure plantation can theoretically direct the nutrients management of forestland and control of soil degradation.According to fix-positional soil sampling,determining and field disturbance experiments in 4 typical pure plantation of larix kaempferi,Pinus tabulaeformis,Catalpa fargesii and Quercus aliena var.acuteserrata in Qinling Mountain,we can get following conclusions:Contents of organic-C,total N,enzyme activities of urease,amounts of microbes and contents of micro-biomass C and N in soil of broad-leaved forests are all more than its of needle-leaved forests except for enzyme activities of sucrase and catalase.External fertilization of C(cane sugar)can popularly raise the enzyme activities of urease,sucrase and catalase,amounts of microbes and contents of micro-biomass C and N,and rates of litter decomposition of planted forests(both needle-leaved forests and broad-leaved forests).External fertilization of N(urea)can raise the enzyme activities of urease,amounts of microbes and contents of micro-biomass C and N,and rates of litter decomposition of needle-leaved forests,but lower the involved biochemical indices of broad-leaved forests.In summary,as a whole,broad-leaved forests are conductive to soil improvement,whereas,needle-leaved forests are harmful.Both C and N are limited nutrients for biochemical characteristics of needle-leaved forests,whereas,only C is limited for broad-leaved forests,and N is not lack,more N has no good but is harmful.
文摘The benzophenone-initiated photoaddition of N-methyl ammes 2 to the chiral synthon1 proceeds in a regiospecitlc and highlyr stereocontrolled thshion to give the C-C photoadductscontaining a ne\viy stereogenic center 3a-3c. The enantiomerically pure N-C photoadducts, aminobutenolides 5a-5c have been obtained from the enantioselective photoaddition of secondary cyclicammes 4 with the chiral synthon 1 under the same conditions.
基金supported by Project for Introduced Talents in Environment and Plant Protection Institute of Chinese Academy of Tropical Agriculture(HZS1101)Fundamental Research Special Project for Central Public-interest Scientific Institutes(2012hzs1 J038,2012hzs1 J016)
文摘[ Objective] The paper was to study pathogenic mechanism and action mode of Bacillus thuringiensis （Bt） 00-50-5 strain against Trichoplusia ni Hub- ner. [Method] The crystals and spores of B. thuringiensis 00-50-5 strain were first isolated and purified, and their insecticidal activities against T. ni were com- pared. [ Result] Either the mixture of pure crystals and pure spores of 00-50-5 strain, or only pure crystals could kill T. n/larvae under the concentration of 100 p.g/mL after 48 h, and the mortality rate reached 100% ; pure spores could not kill the larvae. Determination results of median lethal concentration showed that in- secticidal activity of pure crystal of Bt 00-50-5 strain （LGs0 =0.32 p~/mL） was higher than the mixture of crystals and spores （LCs0 =0.48）, but the insecticidal acti^ty of pure spores was very low （LC50 〉 500.00）. Therefore, the crystals were primarily responsible for causing death of larvae. [ Conclusion] The paper provides theoretical basis for application of Bt 00-50-5 strain.
