N，N－二甲基甲酰胺在血液中代谢物S－（N－甲基氨基甲酰）谷胱甘肽的气质联用方法

根据先将ＳＭＧ转化为乙基、Ｎ－甲基氨基酸盐（ＥＭＣ），然后以气相色谱－质谱联用手段测定所产生的ＥＭＣ的原理，发展出一种定量检测大鼠血清中ＳＭＧ及其他Ｎ－甲基氨基甲酸硫酯类物质的分析方法．方法采用人工合成的ＳＭＧ和ＥＭＣ进行标定，每次测定需要样品量为０．５ｍＬ，方法的合理检出极限为ｃ（ＳＭＧ）＝１０μｍｏｌ／Ｌ．     

苏南地区部分饮用水源水的有机污染物研究

以美国EPA建议的多污染物分析与评价系统,对苏南地区部分饮用水源水质的危险度进行了评价。评价结果各水样健康危险度均>1,表明各水样对人健康均存在潜在危害,而生态风险度均<1。同时,采用人外周血淋巴细胞彗星试验,对各水样有机浓集物的生物毒性进行了研究,结果表明水样浓集物可对淋巴细胞DNA产生不同程度的损伤,存在一定的遗传毒性。试验结果与水质状况基本一致,表明上述两种方法对于评价水体有机物污染的有效性。     

温带亚高山针叶林土壤碳循环微生物群落的时空动态

选取参与碳固定的二磷酸羧化/加氧酶基因（cbbM）、有机碳降解的淀粉酶基因（amylase）和纤维素酶基因（cellulase）作为分子标记,用实时定量PCR方法对温带亚高山华北落叶松（Larix gmelinii var.principis-rupprechtii）林、白杄（Picea meyeri）林、青杄（P.wilsonii）林和油松（Pinus tabulaeformis）林土壤碳循环功能微生物类群丰度的时空动态开展研究.结果显示,总碳（TC）、总氮（TN）、总硫（TS）、有机质（OM）和有机碳（TOC）、pH值、铵态氮（NH₄⁺-N）、硝态氮（NO₃^--N）、过氧化氢酶、蔗糖酶和脲酶活性在4种森林土壤中都有不同程度的差异,且有显著的季节变化特征.高海拔华北落叶松林土壤TC、TN、TS、C/N、OM和TOC含量最高,而pH值最低.土壤TC、TN、亚硝态氮（NO₂^--N）含量、蔗糖酶和脲酶活性,与碳循环微生物类群的丰度呈极显著相关.土壤NO₃^--N含量与有机碳分解和固碳微生物类群的相对丰度显著相关;土壤C/N、NO₂^--N、pH值、OM、TOC、过氧化氢酶及脲酶活性,与降解易分解碳（labile C）和难分解碳（recalcitrant C）的微生物类群的相对丰度呈极显著相关.植被类型和季节变化共同影响土壤碳循环微生物类群的丰度,而季节变化是主导因素.植被和土壤环境因子通过调控微生物群落碳代谢功能类群的结构,影响森林土壤碳源-汇的平衡.     

应用概率理论拓宽MPN值的计算与实用性

应用多管法检测大肠菌群细菌数是一种适用各种水样的行之有效的检验方法，但此方法操作繁琐，数据处理较难。本文应用概率理论，推导出多种情况下大肠菌群最可能数ＭＰＮ值计算公式，并编制了方便可靠的ＨＢＧ程序，从而进一步提高了此法的实用价值。     

An evaluation of a shared experience group for women and their support persons following prenatal diagnosis and termination for a fetal abnormality

Objectives Support after fetal diagnosis of abnormality (SAFDA), is a facilitated shared experience group for women and their partners or support person, in Victoria, Australia, who have had a pregnancy termination for a fetal abnormality. The objective of this study was to evaluate the SAFDA-facilitated group. Methods A questionnaire-based study was undertaken between 2001 and 2005 to evaluate SAFDA. A deidentified self-completed questionnaire was given to participants at the end of each group and included questions relating to the referring professional, participants' prior expectations of the group, helpfulness of participation, preferred group format, length, and venue. In addition, there was also opportunity for participants to make general comments on their experiences of participating in SAFDA. Results A total of 85 participants (100% response) completed the questionnaire. Seventy-one participants (84%) considered it ‘very helpful’ to participate in the group. Seventy-eight participants (92%) considered that a shared-experience group was the most beneficial format. Comments written by participants affirmed that the present format of SAFDA was a highly valued opportunity to listen to and share experiences in a confidential small group. Conclusion SAFDA is a beneficial forum for women and their partners or support person to share their experiences after having had a pregnancy termination for a fetal abnormality. Further, SAFDA provides information and insights for health professionals who are considering how best to support women. Copyright © 2007 John Wiley & Sons, Ltd.     

基于价值工程思想的长三角地区城市群物流产业发展决策分析

现代物流产业是当前长江三角洲地区城市群重点发展的产业。运用SWOT分析方法对目前长三角地区城市群发展现代物流产业所具有的优势、劣势和面临的机遇、挑战进行了综合分析。从产业效益和社会效益两方面提出了基于价值工程思想的长三角地区城市群物流产业发展的决策方法。建立了一种基于价值工程思想的有资源约束的产业发展决策模型，并给出了应用实例。基于SWOT分析结论和价值工程的社会效益决策方法提出了长三角地区城市群现代物流产业发展的策略。     

RUNOFF VOLUME ESTIMATION USING GIS TECHNIQUES1

ABSTRACT: Rainfall runoff of six watersheds was modeled via the Soil Conservation Service runoff curve number model in two ways: conventionally (manually) and via a geographic information system (GIS). Input data (elevation, soils, and landcover) were digital for the latter method. In contrast to previous studies, the GIS was ised for all phases of the modeling process, including watershed delineation and routing of runoff. A comparison between the two methods was consistent with results reported by others and indicates that the use of a GIS is an acceptable alternative to the conventional method for watersheds lacking relatively flat terrain. Given this limitation, the GIS method may prove advantageous over manual methods when study areas are large or numerous, runoff is modeled repetitively, alternative landcover scenarios are explored, or a digital database already exists for the study area.     

浅水湖泊群水质模型的近似解析解法

为了实现在一般微机上也能模拟浅水湖泊群的水质变化，从水质变化的基本控制方程出发，根据浅水湖泊群的水流特征与污染物迁移特性，首先建立了浅水湖泊群ＢＯＤ－ＤＯ模型，然后针对恒定水流和污染源稳定排放污水的情形，把处于湖泊边界上的污染源所面临的湖面视为半无限区域，并考虑到浓度的可叠加性，提出了浅水湖泊群ＢＯＤ－ＤＯ模型的近似解析解法。实例结果表明，这种解法计算工作量和存储量都较小，在一般微机上即能进行，且计算准确度基本上能满足工程实际要求。     

皖浙赣相邻区中元古代溪口岩群的划分与对比

通过1：25万区调工作，对变质岩区采用了构造一地(岩)层法填图，区域性标志层的追索与对比，以及所获得的同位素年龄成果，对研究区长期存在的同物异名及同名异物的现象得到了较好的理顺。根据溪口岩群的岩石组合、沉积构造、变质变形特征，将其划分为佛子坑、板桥、木坑、郑家坞四个岩组。溪口岩群和双桥山群、双溪坞群应属大致同时、但在不同大地构造背景下不同沉积环境的产物，溪口岩群与双桥山群、双溪坞群层位相当，但岩性组合差异较大。