蛋白质结构与密码子上下文关联的信息论研究

从信息学的角度，对人(Homo sapiens)的117个蛋白质和大肠杆菌(Ecoli)的185个蛋白质的各二级结构相对应的mRNA序列中的密码子上下文关联、蛋白质序列中氨基酸上下文关联作了统计分析，计算了各二级结构中密码子(氨基酸)上下文关联的信息剩余．结果显示，同义密码子关联有着不同于氨基酸关联偏好的反常现象，人和大肠杆菌蛋白质中反常的密码子分别占19％、16％左右；并对大肠杆菌中的稀有密码子的关联进行了讨论，发现稀有密码子的关联偏好Sheet和Coil二级结构．     

土木工程专业结构实验教学体系的构建与实践

结合土木工程结构实验课程的理论与实验教学经验，调整实验课程内容，深化实验教学改革，充分利用高校的实验设备资源，搭建了一个土木工程类多课程共享的创新性实验教学平台，构建了以综合性、设计性实验为主验证性、演示性实验为辅的多层次实验教学模式，同时介绍了该平台建设和实施所取得的效果。     

“互联网+”驱动辽宁装备制造业产业升级研究

在信息化经济的今天,随着科技的迅速发展,传统产业的运营模式受到了极大的挑战。基于“互联网+”对产业升级高度化和效率化指标进行测算,探讨辽宁省装备制造业现阶段的发展状况及其存在的问题,提出“互联网+”驱动辽宁装备制造产业升级的对策建议,旨在为企业发展和政策制定提供可行性理论指导。     

高新技术企业财务管理框架简论

本文从高新技术企业所特有的资产结构,股本结构和财务指标分析入手,结合高新技术企业的特点,针对高新技术企业的规模、所处不同生命周期等因素的影响,就如何构建其基本的财务管理目标及框架从而实现股东价值最大化或者企业价值最大化进行阐述和探讨。     

新官绅及乡镇权力结构——以浙江省海宁县长安镇为中心

近代乡村社会的权力格局与传统社会大不相同,突出表现为现代社会中新阶层的出现以及现代国家政权的建设直接影响到乡村社会的权力结构。控制乡村社会的精英不再是传统士绅,而是随着国家行政体系的延伸而形成的新阶层。浙江省海宁县长安镇张铁民作为抗战以后的一名新官绅,利用自身的亲属关系网络和国民党员的政治身份,确立了在乡镇中的权威地位。国民党县党部通过非组织形式控制乡镇新官绅,插手乡镇事务,在一定程度上掌握了乡村社会的领导权。基层组织的薄弱特征决定了国民党在控制乡村社会的同时,无法利用行政手段从根本上削弱地方权威的影响和地位。在战争的动荡中,国民党未能为新官绅提供足够的利益保障,新官绅与乡村社会同时走向国民政府的反面。     

对变革保险企业组织结构的思考

面对日趋激烈的国际化竞争,增强自身实力,跟上全球化的步伐,已成为内资保险企业的共识。在发展与改革中,传统组织结构的问题日趋显现出来,变革势在必行。新的组织结构中,职能部门数量及级别被压缩,企业的组织机构不再是“多级管理”,而是呈现“扁平化”趋势,专业技术组织的职能部门之间的“边界”将淡化,团队在企业组织中体现出主要地位。     

藏族传统文化的价值结构分析

文化是人类有目的的创造,它是人的需要和满足需要的方式相互交织、不断升华的价值创造过程和不断丰富的价值体系。毫无疑问,文化的价值体系是文化之核心。所以,我们研究藏族传统文化的价值构成及其意义,不仅有助于深刻、准确地理解与把握藏族传统文化的精神实质,而且对于继承或改造藏族传统文化,以致于构建现代新文化等都具有十分重要的意义。一、藏族传统文化的生活价值文化史告诉我们,一切文化植根于生活,来源于生活。据此,藏族传统文化的生活价值必然与藏民族生存的自然环境以及受此支配的民族心理和社会生产关系、经济基础有着直接的关…     

Household Structure and Living Conditions in Nigeria

Data on 7,632 households from the 1999 Nigeria Demographic and Health Survey are used to examine household structure and living conditions in Nigeria. The study finds significant disadvantage in living conditions of single‐adult, female‐ and single‐adult, male‐headed households relative to two‐parent households. Extended households show no significant advantage in living conditions over two‐parent households if headed by women but are consistently advantaged if headed by men. Although extended households do not entirely wipe out the disadvantage of female headship on household living conditions, they show a significant mitigating potential. Efforts to understand and alleviate poverty in Nigeria may need to address simultaneously gender imbalances in access to livelihood opportunities and factors that foster nucleation of family structure into single‐adult households.     

Racial and Ethnic Differences in Experiencing Parents’ Marital Disruption During Late Adolescence

Using panel data from 9,252 adolescents in the National Education Longitudinal Study, this study finds that among children who experience parents’ marital disruption during late adolescence, European, Asian, and African American adolescents exhibit wider and greater maladjustment both before and after the disruption than their Hispanic American counterparts. This finding lends general support to the hypothesis of prevalence of disadvantages, although it is less consistent with the hypothesis of prevalence of divorce. Moreover, whereas Asian American adolescents in predisrupted families are more vulnerable to a shortage of family social resources, their African American peers are affected more by a shortage of financial/human resources. Finally, postdisruption effects on non‐Hispanic American adolescents are either completely or partially attributable to predisruption factors.     

Single Parenthood and Children’s Reading Performance in Asia

Using the data from Program for International Student Assessment, I examine the gap in reading performance between 15‐year‐old students in single‐parent and intact families in 5 Asian countries in comparison to the United States. The ordinary least square regression analyses show negligible disadvantages of students with a single parent in Hong Kong and Korea, once students’ demographic characteristics and socioeconomic background are held constant. Students in single‐parent families in Indonesia and Thailand outperform their peers in intact families. The negative effect of single parenthood remains significant in Japan, even after parent‐child communication is controlled. Interpreting the weak effect of single parenthood in the Asian countries, I consider extended family systems and the relatively high proportion of widowhood among causes of single parenthood.