论开拓国际高等教育市场的必然性及其策略——从我国高等教育应对入世挑战的视角分析

入世在给我国高等教育市场带来严峻挑战的同时,也为我国高校开拓国际市场提供了难得的机遇。开拓国际教育市场是政府和高校的共同责任。在政府发挥宏观协调与指导作用的基础上,一流大学承担起开拓国际市场主角的责任,这是我国高校应对入世挑战的主要策略之一

Surveillance of foodborne pathogenic bacteria contamination in instant food in Jiayuguan

目的了解甘肃省嘉峪关市即食食品中食源性致病菌的污染状况,为食源性疾病预防、控制提供科学依据。方法从选定的监测点和采样场所定期随机采样,按样品原有储存温度要求在最短时间内送达实验室,按《全国食源性致病菌监测工作手册》和gb 4789.10—2010《食品安全国家标准》规定的程序和方法检测分离致病菌。结果全年共采集1 022份样品,检出致病菌119株,总检出率为11.64%;共对7种食源性致病菌进行检测分离,其中蜡样芽孢杆菌检出率最高,为18.12%;食源性致病菌检出率学校周边小铺和小型餐馆中较高,散装食品明显高于定型包装食品,第二季度、第三季度明显高于第一季度、第四季度。结论嘉峪关市售即食食品中食源性致病菌污染较为严重,以蜡样芽孢杆菌和金黄色葡萄球菌污染为主,主要集中在米面制品、外卖配送午餐、盒饭、婴幼儿食品中。Objective To understand the contamination status of foodborne pathogenic bacteria in food in Jiayuguan,so as to provide scientific basis for the prevention and control of foodborne disease.Methods Samples,which were regularly collected from the selected monitoring points and sampling sites the under the original storage temperature of the sample,were delivered to laboratory in the shortest time,and detected and isolated for the pathogens according to the program and method of the The National Foodborne Pathogenic Bacteria Monitoring Manual and GB 4789.10—2012 The National Food Safety Standards.Results A total of 1 022 samples were collected in the whole year,and 119 foodborne pathogens were detected with an overall detection rate of 11.64%; 7 kinds of foodborne pathogenic bacteria were detected and isolated,and the highest detection rate was with Bacillus cereus( 18.12%); the detection rate of foodborne pathogenic bacteria was more severe in the shop around schools and the small restaurant; that in the unpacked foods was significantly higher than that in the packaged food; that in the second and the third quarter was higher than that in the first and the fourth quarter.Conclusion Food in Jiayuguan are heavily contaminated by foodborne pathogens,especially Bacillus cereus and Staphylococcus aureus,which were dominant in flour products,takeaway delivery lunch,the instant rice and infant food

基因编辑的法律与伦理问题

跨域同仁聚焦公共话题,本辑围绕基因编辑的法律与伦理议题,各位学者基于不同的立场与视角做出不同的评议。为尊重言论,兹实录对话,仅做最低限度的技术处理

HYDROLOGICAL OBSERVATION IN AN EVERGREEN BROAD LEAVED FOREST IN THE WUYI MOUNTAINS

[中文文摘]对武夷山甜槠林成熟林水文学效应的研究结果表明：观测期间，年大气降水量2678.78ｍｍ，林内雨量2182.04ｍｍ，林冠截留量为496.74ｍｍ；林内雨中，穿透雨量2082.08ｍｍ，树干茎流99.96ｍｍ；到达甜槠林地作用面的林内雨量中，被地表枯枝落叶层截留的雨量为159.84ｍｍ，地表径流量11.6ｍｍ，地下渗流量109.32ｍｍ，其余林内雨量形成土壤含水量增量并由地表物理蒸发、根系吸收以及植物蒸腾所消耗；甜槠林地o~20０ｃｍ土层水分初渗率78.6ｍｍ·ｍｉｎ－１，稳渗率１５．５ｍｍ·ｍｉｎ－１，达到稳渗历时４５ｍｉｎ，地表枯枝落叶最大持水量5.2ｍｍ，土壤蓄水量154.0ｍｍ。与国内其它地区不同类型的森林相比较，武夷山甜槠林具有较强的水文学效能。[英文文摘]Hydrological observations were made in a 76 year old Castanopsis eyrei forest of the Wuyi Mountains.The results are as follows:(1)In the study period during 1993～1994,annual gross precipitation,net precipitation (throughfall was 208204mm and stemflow was 9996mm)and interception loss were 267878mm,218204mm and 49674mm respectively.Interception rate was 1845%.(2)Net precipitation,the part of gross precipitation appearing on the forest floor,was redistributed through different routes.The part absorbed by litter layer was an annual amount of 15984mm,and accounting for 733%.The parts as surface runoff and below ground drainage were annual amounts of 116mm and 10932mm respectively,and accounting for0.53% and 5.01%,respectively.The rest was kept in soil and then lost to the atmosphere by means of ground physical evaporation or plant transpiration as absorbed by the roots.Its amount was 190128mm,and accounting for 87.13%.(3) The initial infiltration rate and stable infiltration rate for the soil layer of 0～20cm were 786mm·min-1 and 155mm·min-1 respectively.The time needed to arrive at the stable state was 45min.Water storage capacity of soil was 15041t·hm-2.The maximum water holding capacity of litter layer was 52mm.福建省自然科学基金,武夷山自然保护区管理局资

The Current Development of the Classic University Idea Connotation

大学理念是指那些反映大学本质和规律 ,并能对大学的发展起指向和引导作用的观念。19世纪洪堡提出的经典大学理念是大学发展内在逻辑和其社会生活中的地位与作用的反映。随着当代高等教育价值取向的多元化 ,经典大学理念的内涵将发生相应的变化。文章在分析经典大学理念提出的背景基础上 ,将关注视角置于经典大学理念内涵在当代的变化上 ,试图为人们正确认识当代大学的理念提供些许借鉴The university idea is the one that reflects the nature and law of university and directs the development of university. The classic university idea raised by Humboldt in the 19th century is the reflection of internal logic of the university development and its position and function in social life. With the pluralism of the contemporary higher education development, the connotation of the classic university idea will change correspondingly. On the basis of analyzing the background of the classic university idea, the paper will pay close attention to the change of the classic university idea connotation in present age, and try to provide some reference for people to understand the contemporary university idea properly

用废腐蚀液制取氧化铁系产品

针对含氯化铁废腐蚀液的高值化利用和无害化排放问题，开展了用湿法冶金方法制取氧化铁系产品的应用研究．考察了中和剂种类、加入速度、反应温度及洗涤水用量对Ｆｅ２＋氧化、铁黄ＦｅＯＯＨ晶型及产品铁黄和铁红纯度的影响．通过扩大实验估算了该工艺压缩空气和洗涤水用量，提出了处理该类含铁废液的原则流程

用废腐蚀液制取氧化铁系产品

针对含氯化铁废腐蚀液的高值化利用和无害化排放问题，开展了用湿法冶金方法制取氧化铁系产品的应用研究。考察了中和剂种类、加入速度、反应温度及洗涤水用量对Ｆｅ＾２＋氧化、铁黄ＦｅＯＯＨ晶型及产品铁黄和铁红纯度的影响。通过扩大实验估算了该工艺压缩空气和洗涤水用量，提出了处理该类含铁废液的原则流

基于时域有限差分法填充介质梯形脊波导研究

为了研究填充介质对脊波导截止特性的影响,文章采用FDTD（时域有限差分）法计算了填充介质梯形双脊波导在TE（横电波）模式下的截止特性随几何尺寸的变化,并给出了关系曲线。结果表明,脊间距越小,填充介质的相对介电常数越大,截止波长越长,单模带宽越窄。研究结果丰富了现存填充介质波导数据,有助于填充介质波导的设计和工程应用