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For the evaluation of support capability of early-warning counter-attack combat system, the DoDAF method is used to establish an evaluation index system, and a support capability evaluation model is presented based on the belief rule base. The proposed model was used to evaluate the support capability of a unit, and the evaluated results were analyzed. The research results show that the support capability evaluation method based on the belief rule base can be used to effectively deal with the information uncertainty problem faced by the system support capability evaluation, and the improvement in different index levels has different effects on the degree of improvement in the system support capability. The weaknesses of the early-warning counter-attack system support capability can be accurately identified through the evaluation and analysis of the early-warning and counter-attack system support capability. [ABSTRACT FROM AUTHOR]

With the acceleration of agricultural modernization, problems such as agricultural nonpoint source pollution and the proliferation of agricultural carbon emissions have become increasingly prominent. In this context, promoting sustainable agricultural development; ensuring national food, resource, and ecological security, and accelerating high-quality agricultural development have become inevitable trends. Promoting the green development of agriculture is one of the core tasks of high-quality agricultural development, and the implementation of green production behavior is the key to promoting the green transformation of agriculture. Farmers are not only the main bodies of agricultural production, but also the main implementers of green production. Therefore, it is of great practical significance to clarify the factors influencing farmers' green production behavior and the relative importance of each influencing factor. Based on the perspective of the entire industry chain and survey data of 360 lychee growers in major lychee-producing areas of Guangzhou City from May to August 2022, this study uses an ordered logistic regression model to explore and analyze the influencing factors of the green production behavior of lychee growers. The importance of these results is then ranked using the random forest model. The organic combination of these two methods overcomes the limitations of a single statistical method. The results show that 1) the age and part-time employment of lychee growers and the lychee planting area significantly negatively affect the implementation of their green production behavior; 2) production safety, environmental, and policy cognition can effectively promote the adoption of lychee growers' green production behaviors; 3) village rules and regulations, increasing green production subsidies, identifying geographical indication product brands, government satisfaction, participating in training and increasing agricultural income all significantly positively affect the lychee growers' green production behavior; and 4) the relative importance of explanatory variables ranks from high to low as follows: policy cognition, formulating village rules and regulations, production safety cognition, identifying geographical indication product brands, environmental cognition, increasing agricultural income, age, the planting area of lychee, participating in training, increasing green production subsidies, government satisfaction, and part-time employment. The four influencing factors are also ranked in order of importance: cognitive characteristics, external environment, family business characteristics, and personal characteristics. Accordingly, this study suggests that the government should first, based on respecting the subjectivity of lychee growers, formulate relevant policies according to local conditions to stimulate the internal power of their sustainable development, stimulate their consciousness, and improve their responsibility toward green production by increasing green production subsidies by realizing the visualization of income and benefits, building a diversified publicity and training system, and other means. A supervision mechanism should be established to standardize the behavior of lychee growers, and measures such as market supervision, village rules, and regulations should be adopted to constrain them. Finally, governments must create an external environment conducive to green development by appropriately expanding the planting scale to reduce the proportion of part-time lychee growers; building a high-quality brand image; promoting cooperation among research institutes, universities, and lychee growers; and comprehensively improving their green production levels. [ABSTRACT FROM AUTHOR]

In order to maintain the operational reliability of equipment during life cycle, the advantages and disadvantages of the periodic preventive maintenance model and the sequential preventive maintenance model are analyzed. A three-stage periodic preventive maintenance model is proposed based on the equipment maintenance practices. Three models, i.e., periodic preventive maintenance model, sequential preventive maintenance model and three-stage periodic preventive maintenance model, are constructed by taking the minimum cost rate of equipment life cycle under the reliability constraints as the optimization objective. The optimal preventive maintenance frequencies and intervals of equipment life cycle of each model are obtained. The case study results show that, under the same conditions, a high reliability and a low cost rate of equipment during life cycle can be obtained by using the three-stage periodic maintenance model. Moreover, it can also closely integrate the maintenance operation practices, as well as has a good feasibility and generalizability. [ABSTRACT FROM AUTHOR]

Objective: To explore the expression of MT1F mRNA in colon cancerous tissues, and analyze its clinicopathological significance. Methods: Taq Man quantitive Real-time PCR was performed to detect the expression of MT1F mRNA in 40 paired samples with primary tumor and adjacent normal mucosa. Metallothionein(MT) protein was measured by immunohistochemistry. Results: MT1F mRNA was significantly downregulated in 82.5 %(33/40) tumorous tissues compared with normal colonic mucosa, and the expression ratio ranged from 2.4 to 113. The expression levels of MT1F mRNA did not correlate to age, gender, tumor location, morphous, diameter,differentiation and Dukes stages of colon cancer patients. Immunohistochemistry showed that low levels of MT protein were also existed in patients with MT1F mRNA downregulation. Conclusions: MT1F mRNA was obviously downregulated in colon cancers, but was not associated with clinic pathological characters of colon cancer. [ABSTRACT FROM AUTHOR]

Objective: To investigate the effect of Recombinant Human Endostatin Injection combined with lobaplatin on the quality of life and immune function in patients with malignant pleural effusion. Methods: A total of 56 patients with malignant pleural effusion, who were treated in the socond People's Hospital in Jingmen from March 2015 to March 2017. were selected and divided into study group (n=28) and control group (n=2S) according to the different treatment methods. The control group was given chemotherapy with lobaplatin. and the study group was treated with Recombinant Human Endostatin Injection combined with lobaplatin. The changes of the quality of life, the changes of immune function before and after treatment, the clinical effect and the occurrence of adverse reactions were compared between the two groups. Results: Improvement rate of quality of life of the patients in the study group was higher than that of the control group (p<0.05). Before treatment, there was no significant difference in the contents of immune function indexes between the two groups by statistical analysis (P>0.05). Compared with those before treatment, the contents of CD3+. CD4+. CD4+CDS+and XK in the two groups 4 weeks after treatment were increased, while the content of CD8+was decreased, the contents of CD3+. CD4+. CD4/CD8+ and NK in the study group were higher than those in the control group, and the content of CDS+ in the study group was lower than that in the control group (p<0.05)- The total effective rate of the study group was 78.57%. compared with the 46.43% of the control group, the difference was statistically significant (P<0.05)- There was no significant difference in the incidence of cardiac reactions, vomiting, nausea.thrombocytopenia, aleucocytosis. anemia and fatigue between the two groups (p<.05)- Conclusion: Recombinant Human Endostatin Injection combined with lobaplatin has a good effect in the treatment of malignant pleural effusion. It can improve the quality of life of the patients, improve the immune function, and it will not increase the adverse reaction of the patients, which is worthy of clinical promotion. [ABSTRACT FROM AUTHOR]