含铬废渣的综合利用

着重介绍了重庆东风化工厂铬渣综合治理的成效。其中包括该厂已成功应用于工业化生产的铬渣作玻璃着色剂，钙镁磷肥助熔剂，炼铁烧结熔剂等利用途径及其还原解毒机理，以及在水泥等建材方面的应用尝试。     

有机磷酸酯诱导迟发性神经毒性及其对神经毒性酯酶(NTE)活性影响的动态研究

以成年产卵来航母鸡为试验动物，研究了三甲基苯基磷酸酯诱导的迟发性神经毒性。试验发现，母鸡口服ＴＯＣＰ后经过大约８－１０ｄ的潜伏期开始出现中毒症状，其表现为以步态失调为主要特征的运动障碍呈进行性加重，至２１ｄ开始便发展为瘫痪。     

MSAFP levels and oesophageal atresia

This study was undertaken to evaluate the relationship between maternal serum alpha-fetoprotein (MSAFP) levels and oesophageal atresia (OA). OA occurred in 16 fetuses of mothers who had an MSAFP test in the study interval. The multiple of the median (MOM) value for MSAFP averaged 1·54 ± 0·65 (range 0·5–2·9 MOM), which was significantly higher than the value seen in controls. The median MOM was 1·35. Using a cut-off of 2·5 MOM, the sensitivity of MSAFP for detecting OA was 19 per cent. Although OA should be considered in the differential diagnosis of an elevated MSAFP level, MSAFP cannot be considered an appropriate screening test for OA given the low sensitivity.     

Dystrophin protein and rflp analyis for fetal diagnosis and carrier confirmation of duchenne muscular dystrophy

A pregnant woman with indeterminate Duchenne muscular dystrophy (DMD) carrier status, but with DMD diagnosed in her deceased brother (unavailable for study), presented for prenatal diagnosis, intending to continue the pregnancy only if proven unaffected with DMD with near absolute certainty. Creatine kinase (CK) assays to clarify carrier status were inconclusive. Male sex in the fetus was identified, but DNA restriction fragment length polymorphism (RFLP) analysis was not yet available to this centre to investigate the possible transmission of the DMD gene, and the pregnancy was terminated. Tissue histology and dystrophin protein analysis demonstrated the absence of DMD. In a situation with proven maternal carrier status, future fetal inheritance of the opposite maternal X chromosome would indicate the presence of DMD. However, maternal carrier status remained in doubt through a second pregnancy, even with RFLP studies, and was finally established when dystrophin analysis confirmed the presence of DMD in the second fetus. Histologic findings are presented, contrasting features in the two fetuses. The value of dystrophin analysis for establishing the diagnosis of fetal DMD, in this case proving maternal carrier status in a difficult situation, and for demonstrating DMD gene:RFLP haplotype relationships is illustrated.     

川西北哲波山微细浸染型金矿床岩浆岩特征

对川西北哲波山金矿区内出露的中 -酸性岩脉、岩株的类型、化学成分、地质特征以及微量元素、同位素、稀土元素等特征进行了研究 ,指出印支晚期和燕山早期的岩浆岩均属钙碱质岩系列 ,均起源于幔壳混源区 ,原始岩浆在成分上和演化上又存在着一定的差异性。岩浆岩为成矿提供了一定的物质基础。     

聚氧硫酸根合高铁处理选煤废水实验研究

讨论了聚氧硫酸根合高铁处理煤泥水的作用机理及使用的影响因素，有助于选择厂实现洗煤水闭路循环，以提高选煤厂的经济效益和社会效益。     

火电厂烟气脱硫工艺国产化初探

火电厂排放的SO2形成酸雨已严重危害人类生存环境。国家把解决烟气脱硫问题纳入大政方针之中，强制要求火电厂必须安装烟气脱硫装置。文章介绍了几种目前国际上较为成熟的脱硫工艺，并对各种工艺进行了比较，分析了国内烟气脱硫市场，并就脱硫技术国产化问题提出若干看法。     

锅炉房噪声的产生与治理

本文分析了锅炉房噪声的产生机理 ,针对各类锅炉房的具体情况 ,提出了“分散控制”和“集中控制”的不同治理方案。其中隔声、消声、隔振、吸声等声学措施的综合利用 ,易收到较好的效果 ,可降噪 2 0dB(A)以上     

活性污泥数学模型中进水易降解有机物的测定

ASM系列模型 (ASMs)自推出以来在欧美得到广泛应用。要想利用ASMs对特定污水处理过程进行准确的模拟 ,首先必须得到该过程污水的水质特性参数。介绍了连续式OUR计量法、序批式OUR计量法和絮凝过滤物理化学法等 3种测定ASMs中进水易降解有机物的方法 ,通过分析比较指出了各自的优缺点及适用情况。     

Service transformation—managing a shift from business travel to virtual meetings

It has been shown that the potential for environmental, and financial improvements through the increased substitution of in-person meetings by virtual communication is considerable. However, it has also been shown that this potential is not automatically realized by investing in the technology that can enable virtual meetings. This paper describes two case studies that explored the factors that influenced communication and meeting behavior. A number of drivers and barriers for virtual meetings are identified, and, in addition, measures are proposed to improve the utilization of virtual tools for business communication.