储层岩石矿物成分对酸蚀裂缝导流能力的影响

储层岩石矿物成分是酸压改造效果影响因素之一。研究认为，在储层岩石矿物成分中易溶物的含量及分布方式决定了酸蚀裂缝导流能力大小，易溶蚀物的含量越多，岩石溶蚀速率越快。室内测试了不同溶蚀速率下的灰岩和白云岩的酸蚀裂缝导流能力，研究了岩石溶蚀速率、易溶蚀物含量对酸蚀裂缝导流能力的影响，对酸压工艺设计方案提出了指导性建议。研究结果表明，储层岩石溶蚀速率与酸蚀裂缝导流能力增加倍比存在抛物线关系，易溶蚀物占30%40% 时酸蚀裂缝导流能力保持较好。     

Sex Related Factors in the Perception of Threatening Facial Expressions

This study replicated and extended previously reported sex differences involving both viewer and target in the recognition of threatening facial expressions. Based on the assumption that the evolved cognitive mechanisms mediating anger recognition would have been designed by natural selection to operate quickly in the interests of survival, brief tachistoscopic presentation of stimulus photographs was used. Additionally, in contrast to prior published studies, the statistical methods of signal detection research were used to control for the confounding effects of non-random guessing. The main hypothesis, that anger posed by males would be more accurately perceived than anger posed by females, was supported. A secondary hypothesis, that female-posed anger would be more accurately perceived by women than by men, received partial support. Testosterone levels, measured inferentially in terms of diurnal cycles, failed to show the hypothesized positive relationship to accuracy of anger perception.     

Comprehensive neighbourhood mapping: developing a powerful tool for child protection

This paper proposes ‘comprehensive neighbourhood mapping’ as a schema for gathering and interpreting information within a given geographical area which is informed by imaginative thinking about the safety of children and young people from sexual crime. It would build upon current forms of profiling by local authorities, health authorities and central Government. CNM would actively involve local people, in partnership with agencies, in ‘mapping’ danger points and support points. Eight components are discussed, including environmental issues, locations of sex offenders, sites where teenagers meet and share information, supportive individuals and organizations. Some issues for pilot projects are discussed, including the need to set up planning and implementation groups and to integrate CNM into wider child protection and community safety strategies. CNM is grounded in an ecological perspective which sees partnership approaches as essential and believes an overarching view of neighbourhood needs, based on detailed local information and understanding of how different forms of harm interconnect, is crucial in developing child protection strategies. At times of acute official anxiety about community ‘lynch‐mob’ reactions to known paedophiles, CNM aims to build communities which instead are informed and thoughtful about child protection. Copyright © 2002 John Wiley & Sons, Ltd.     

英语口语教学刍议

英语口语技能是听、说、读、写四项基本语言技能中很重要的一种技能。要通过课堂教学提高学生口语能力 ,必须从教师、教学方法和学生三方面入手 ,即教师应组织和动员学生积极参与学习 ,采取循序渐进的教学方法 ,发挥学生的主观能动性。学生应有明确的学习目标和计划 ,积极配合老师 ,多说勤炼     

英汉思维方式对语言结构的影响

思维方式对语言的结构有哪些影响?本文从形合与意合在句法上与章法上的不同表现,论述了英汉两种语言在结构和表达方式上的不同,并通过实例归纳出一些具体做法,供同行进一步探讨。     

社会性别与深层道德结构--择偶、性的道德模式

在男权文化占主导地位的社会环境中,男女在择偶和性的道德模式上存在着完全不对等的规范,男女占有不同的社会资源,这些被长久地视为自然而然、合情合理的现象。文章试图从社会性别视角来探究隐藏在择偶和性风俗习惯背后的不平等的道德模式。     

出走“娜拉”的尴尬——现代爱情喜剧的性别透视

“娜拉”出走后的沉浮遭际,构成了中国现代爱情喜剧的主要题材特色。文章在归纳了中国现代爱情喜剧的发展线索之后,从社会性别角度,透视了出走“娜拉”的诸多尴尬与无奈。     

张家山汉简所见“妻悍”“妻殴夫”等事论说

江陵张家山汉简中有关于“妻悍”、“妻殴夫”简文,可以体现当时社会的性别关系。有 关法律,在后代有所变化。讨论有关现象,对于认识汉代文化的特征,有积极的意义。     

构建立足“3R”的矿难治理预防管理体系

对劳动力载体的保护是劳动和社会保障的指向之一。面对矿难对劳动者生存权的侵蚀,加强矿难治理的准备工作,就成了生命对社会的合理诉求。这其中对劳动者生存权的尊重,也是构建和谐社会的应有之义。     

谈作文评分的误区

教师忽略学生学习的现状,对作文求高求大求全,是影响学生作文的消极因素之一。宜根据实际客观地评分,并 适当运用激励方法,激发学生的写作兴趣,提高作文水平。