新生儿Omenn综合征

报告1例新生儿Omenn综合征。患儿女,16 d。全身潮红伴脱屑15 d。体格检查:全身皮肤浸润、潮红。腹部膨隆,肝脾淋巴结肿大。实验室检查:外周血白细胞升高,嗜酸性粒细胞明显增多;B淋巴细胞缺如;血清IgG、IgA、IgM极低,IgE显著升高。骨髓检查:嗜酸性粒细胞比例明显升高。诊断:Omenn综合征。

科技期刊的集约化发展研究——以吉林大学自然科学学报为例

随着互联网和大数据的快速发展,高校科技期刊基于单刊独立运行模式已经不适应时代的发展,改革势在必行。参考和借鉴国内外科技期刊和出版集团先进技术和成熟经验,优化现有的运行模式,进行高校科技期刊管理体制和机制的改革与创新,实现科技期刊集约化发展是科技期刊主管部门、主办单位和编辑工作者都必须认真思考的战略问题。本文简要论述吉林大学主办的科技期刊在集约化方面做出的一些尝试与创新,为探索适合我国科技期刊集约化发展模式提供参考依据。

Properties analysis of a large flow-rate safety valve test device

In order to solve the problem of property test of large flow-rate safety, the property parameter of safety valve test system was analyzed, and a device for property oflarge flow-rate safety valve test was designed.The device used accumulators as power source and a united function cylinder, which can realized the large flow-rate output for the test system.Analyzed the test data and made a particular research on the test device by testing different flow-rate safety valves;it verifies that the test device can be used tode-sign larger flow-rate safety valve test system and can make the flow-rate test and analysis and dynamic characteristics for the large-flow safety valve.

Research on hydraulic-powered roof supports test problems

The load-bearing characters of hydraulic-powered roof support with dual telescopic legs were analyzed. With a specific type hydraulic-powered roof support with dual telescopic legs for research object, the inside load test problems in factories was analyzed, and the correct test methods were given, which can enhance the test efficiency and make the factories away from the error design of hydraulic-powered roof supports and legs.

《乡村教师生活补助政策》实施背景下师范生乡村从教意愿及影响因素分析——基于西部贫困地区15所院校的调查

在《乡村教师生活补助政策》全面落实的背景下,本文采用Logit阶层回归模型,对西部贫困地区15所院校师范生的乡村从教意愿及影响因素进行了实证分析。研究发现:超过半数的师范生愿意去乡村从教,但只有少数愿意从教3年以上;政策知晓度对师范生乡村从教意愿有显著的积极影响;少数民族、男性、非独生子女更愿意去乡村长期从教;农村户籍、家庭年收入在1万元以下、父亲受教育程度初中及以下、家人支持的师范生更愿意去乡村从教;月收入期望值底线、乡村厌恶度对乡村从教意愿有显著的负向影响。建议国家制定多样化激励政策鼓励师范生乡村从教;西部地方院校要加强乡村教师政策的宣传力度;西部乡村教师招聘时可优先考虑少数民族、农村籍、非独生子女、家人支持的应聘者。