Experimental Report on the Effectiveness of the Insecticide Chloromethiuron 3

No. 3 diflubenzuron is one type of benzoyl N-Phenylurea compound, a type of insect chitin synthesis inhibitor, and has a unique disinsection mechanism. It can depress the chitinous formation on the insect epidermis, and make it die in the process of ecdysis or metamorphism. It has particularly effective impact on lepidopterous larvae, and it can control many kinds of pests?such as armyworm, cabbage worm, cotton bollworm?Clanis bilineata, Pine caterpillar, Hyphantria cunea? mosquito screwworm etc. No. 3 diflubenzuron hardly has effect on imagoes, and has low virulence on higher animals; the medium lethal dose of white rats is 15,000 mg/kg on w/w basis. It has high virulence on target insects, but low virulence on non-target insects. This chemical has no specific smell, does not pollute the environment, and is safe for humans and animals. Thus, it is a new diflubenzuron with high-effect and low-virulence, and could replace some organochlorine insecticides such as DDT, Hexachlorocyclohexane and others. Mythimna separata Walker is one of the main pests of crops in Jilin Province. The infested area per year is usually 5 – 10 million mu [666.7m2 ] in the whole province; and it will reach above 10 million mu in years of mass-outbreak. It leads to severe reduction of yield or even no yield if the M. separata are not controlled in time. In order to replace the organo-chlorine pesticides with their highly toxic residue?we have been doing experimental investigations and research on the chitin synthesis inhibitors - No. 1 diflubenzuron and No. 2 diflubenzuron - since 1977. In addition, we have done systemic research on No. 3 diflubenzuron supported by leaders in the Science Committee of our province since 1979. Our results are from indoor control experiments of No. 3 diflubenzuron colloidal suspension M. separata, which was synthesized and provided by the Tonghua Chemical Engineering Institute, and field-plot experiments and demonstration extension experiments within Jilin province. In this paper, the partial results of our research are summarized as follows.Originating text in Chinese.Citation: Liang, Shulian, Sun, Yajie, Chen, Ruilu. (1985). Experimental Report on the Effectiveness of the Insecticide Chloromethiuron 3. Journal of Jilin Agricultural Sciences, 35(2), 36-44

Long segment ureterectomy with tapered demucosalized ileum replacement of ureter for ureteral cancer: a case report and literature review

Radical nephroureterectomy (RNU) with bladder sleeve resection is currently the gold standard for the treatment of high-risk ureteral cancer. However, in certain special cases, such as bilateral upper tract urothelial carcinoma(UTUC), isolated and chronic kidney disease, and low-risk UTUC, kidney sparing surgery(KSS) may represent a viable alternative, though it remains highly challenging. The current KSS options for ureteral cancer include endoscopic treatment, segmental ureterectomy, total ureterectomy combined with kidney autotransplantation and nephrostomy. These methods are associated with significant disadvantages, such as a high risk of recurrence and vascular-related complications. On the basis of previous studies, we creatively proposed a surgical method of long segment ureterectomy with tapered demucosalized ileum(TDI) replacement of the ureter for ureteral cancer, and successfully performed this operation on a patient with ureteral cancer. The follow-up results showed that this surgical method provides good tumor control while preserving the patient’s renal function and improves the inherent defect of the ileal replacement of the ureter, which is a feasible choice for patients with ureteral cancer and kidney preservation

Sustainable Developmental Evaluation of Foreign Trade Based on Emergy Analysis Method in Shenzhen City, China

The foreign trade sustainable development index system of Shenzhen City, including the three subsystems of environment, economy, and society, was constructed based on the theory of emergy analysis. The sustainable development of foreign trade in Shenzhen City from 2009 to 2016 was evaluated, and a detailed analysis of changes in the emergy of light and heavy industries was performed. The results showed that the scale of economy has been expanding, and the total volume of imports and exports has turned from a rise to a decline in 2013. The status of sustainable development is not optimistic. The transaction volume of energy is reduced, and the quality of people’s living environment is declining. The sustainable development of Shenzhen City is not perfect, but it is in a phase of gradual optimization. Moreover, the proportion of heavy industry in import and export trade is significantly higher than that of light industry, which has caused the outflow of energy to a certain extent. Therefore, to improve the level of foreign trade sustainable development, the efficiency of resource utilization must be improved. The import of energy products must be increased, the ability to cope with external interference must be strengthened, and the foreign trade industrial structure must be adjusted