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| 1 | Insecticidal activity of residual Bt protein at the second trophic level显示文摘Measurements were taken of Bt protein expressed in the leaves of transgenic cotton (Gos- sypium hirsutum) transformed with a synthesized Bt (Bacillus thuringiensis) cry1A gene and its persistent level in larval bodies and faeces of a non-targeted insect pest, beet armyworm (Spodoptera exigua). We performed enzyme linked immunosorbent assays (ELISA) and bioassays using neonate larvae of cot- ton bollworm (Helicoverpa armigera) to detect the insecticidal activity of residual Bt protein at the sec- ond trophic level. The results showed that Bt protein content in functional leaves was different at various developmental stages and was different among plants at the same stage. Even though Bt protein concentration in the larval bodies and faeces de- creased 97.5%―99% compared to that found in cotton leaves subsequently fed to beet armyworm larvae, it still had a lethal effect on neonate cotton bollworm larvae. Therefore, Bt protein present at the second trophic level had insecticidal activity. This result is important in understanding and predicting the effect of transgenic plants on nontarget organisms. | SHI Hong ZHANG Lifu HUA Baozhen MI Xiangcheng WEI Wei ZHANG Yongjun MA Keping | 2006 | Chinese Science Bulletin2006，51，8： | 3 |
| 2 | Determina- tion of oxymatrine and its metabolite matrine in rat blood and dermal microdialysates by high throughput liquid chromatogra- phy/tandem mass spectrometry显示文摘 | Zheng Hong Chen GuangChun Shi LiFu | 2009 | J Pharm Biomed Anal2009，49，2： | 1 |
| 3 | Preliminary Study and Quality Analysis of Laggera alata显示文摘[Objectives]To establish a method for quality analysis of Laggera alata.[Methods]The water content,total ash and alcohol-soluble extract of Laggera alata were determined according to the method of 2015 edition of Chinese Pharmacopoeia.[Results]Ten batches of Laggera alata from different producing areas and different collection time in Guangxi had the same plant morphology and medicinal properties.The experimental results were as follows:the water content was 5.19%-10.86%;the total ash content was 5.91%-10.74%;the acid-insoluble ash content was 0.44%-0.92%;the extract content was 14.64%-19.95%.[Conclusions]The experimental results can provide scientific basis for the development and utilization of Laggera alata and the establishment of its quality standard. | Jiangcun WEI Jiabao MA Jian CUI Zhenying FU Xianyi SHI Yan MA Lifu WEI Zhengteng YANG | 2020 | Medicinal Plant2020，11，3： | 0 |
| 4 | Isolation and identification of respiratory tract and intestinal microflora of Meriones meridianus in a conventional animal facility显示文摘Background: Culturable bacterial species from the respiratory tract and ileocecal junction of Meriones meridianus(midday gerbils) captured in the Xinjiang Luntai area were isolated and identified to confirm the microflora and develop approaches for biological purification of laboratory animals and relevant microbial precautions.Methods: Bacteria from respiratory tracts and ileocecal junctions of 30 wild M. meridianus were harvested and isolated by inoculation into culture media. Isolated strains were confirmed by mass spectrometry and 16 S rRNA sequencing.Results: Thirty-nine bacterial species from 20 families and 27 genera were identified and isolated from wild M. meridianus. Typical bacteria were Enterobacteriaceae,Enterococcus, and Staphylococcus aureus, and the most common microflora were Vibrio, Staphylococcus aureus, and Pseudomonas aeruginosa.Conclusion: Wild M. meridianus carries multiple bacteria, most of which are pathogenic or conditional pathogens. This study provides a basis for the development of animal models and laboratory animals from wild M. meridianus. | Yimei Xu Shen Shi Huakui Yan Xiaohui Xu Jiangling Yuan Lifu Liao | 2018 | Animal Models and Experimental Medicine2018，1，4： | 0 |
| 5 | Linux Kernel Data Races in Recent 5 Years显示文摘Data races are increasingly seen as concurrency bugs and they are difficult to reproduce and diagnose in parallel programs. Linux kernel is a large-scale software system, in which intensive thread-level parallelism and non-deterministic thread interleaving are more prone to race conditions. This paper conducts an investigation of real Linux kernel data races in recent 5 years. Our results show that there are about 500 real kernel data races reported and fixed in recent 5 years. File systems and drivers among all modules hold a much higher percentage of race conditions than other modules. We also conduct a case-bycase study on data races and graphically show how these data races are triggered with specific thread interleaving.Our analysis results are of interest to researchers and engineers who are committed to kernel data race detection and kernel development. | SHI Jianjun JI Weixing WANG Yizhuo HUANG Lifu GUO Yunkun SHI Feng | 2018 | Chinese Journal of Electronics2018，27，3： | 0 |
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