高职高专教育的课程改革应该抓住的几个根本问题

本文结合目前我国高职高专教育教学改革的实际,分析论述了课程改革应该抓住的几个根本性问题:对课程概念的理解,对课程内容的理解,对高职高专教育课程开发与改革的理解,并提出了作者对处理好这些问题的初步见解,希望能对高职高专教育的课程改革有所启示。     

中国东北、内蒙古地区茶藨属果树资源的研究

本文对东北、内蒙古地区茶属果树资源进行了调查,初步查明有１９种、２变种、１变型,并对其特征、特性、生境、分布及利用价值进行了研究,总结了驯化栽培的研究结果,提出了开发利用的建议。     

First and early second-trimester diagnosis of fetal urinary tract anomalies using transvaginal sonography

Urinary tract anomalies are common. Prenatal diagnosis is important and enables either special obstetric management or termination of pregnancy and probably in the future, intrauterine intervention. Transvaginal sonography (TVS) allows visualization of the normal and anomalous fetal urinary tract at an early stage. One thousand nine hundred and forty women were examined via TVS at an early stage of pregnancy between 10 and 16 weeks from the last menstrual period (LMP) and 35 anomalies (1·8 per cent) were clearly identified: 29 cases of low urinary tract obstruction, 2 cases of multicystic dysplastic kidney, 2 cases of polycystic kidney (infantile type), 1 case of double collecting system, and 1 case of horseshoe kidney. Potter syndrome could be ruled out in three patients who had delivered fetuses suffering from this anomaly in previous pregnancies. The concise and early identification of anomalies makes TVS an important aid in the hands of the obstetrician, ultrasonographer, and neonatologist.     

三峡库区垃圾堆放场稳定化程度的模糊综合判别

从宏观和微观两个方面建立了垃圾堆放场稳定化程度的判别指标，即表观指标，垃圾堆龄，最大理论产气量，有机质含量和浸出液COD等，并且确定评价标准，稳定化程度分级体系采用稳定，基本稳定，较稳定和稳定4级，运用模糊数学的理论方法，综合判定三峡库区万州和尚桥垃圾堆放场的稳定化状态。     

Production of laccase by Coriolus versicolor and its application in decolorization of dyestuffs : (Ⅰ) Production of laccase by batch and repeated-batch processes

The production of laccase by Coriolus versicolor was studied.The effect of cultivation on laccase production by Coriolus versicolor was examined to obtain optimal medium and cultivation conditions.Both batch and repeated-batch processes were performed for laccase production.In repeated-batch fermentation with self-immobilized mycelia, total of 14 cycles were performed with laccase activity in the range between 3.4 and 14.8U/ml.     

对我国环境监测管理制度的思考

分析了我国环境监测管理制度的现状及存在的问题，提出了改革和完善我国环境监测管理制度的思路。     

高尔夫球场施用农药的环境风险分析

高尔夫球场使用农药,对周围生态环境和人体健康的影响,已引起人们普遍关心.评价化学农药毒死蜱时,根据球场工程结构和排水系统,以及球场施用农药的剂量、次数、方式,并考虑当地的气象、环境特征,进行了非正常因子风险分析试验.试验表明,毒死蜱施用后,农药主要保持在表层0～20cm的砂层中,不易随水淋溶进入水体;一旦进入水体,其消解速度很慢,易对饮用水造成污染,存在一定的潜在风险     

炼油厂污水处理负荷的削减措施

总结和分析了某厂削减污水处理负荷的主要措施及效益，预测该厂在达到16000kt/a以上加工规模时的污水处理负荷。