包络分析方法及其在齿轮故障振动诊断中的应用

通过理论分析和实际工程应用分别讨论了两种常用的齿轮振动包络分析方法,将细化技术融于希尔伯特变换解调及窄带解调之中,以提高解调频谱的频率分辩力。     

混沌投资时间序列的分形维数谱的相变

利用与热力学的相变理论进行类比的方法,对混沌投资时间序列的分形维数谱的静态相变和动态相变及其应用进行了探讨和介绍.     

2×2上三角算子矩阵的一类谱补问题

设H,K为Hilbert空间,MC=A C0 B是定义在HK上的2×2上三角缺项算子矩,对于给定的A,B本文得到了一些关于MC的谱补的一些结果.     

Developmental Attachment and Gay and Lesbian Adoptions

Abstract

With increasing numbers of gay men and lesbians choosing to raise children, many are looking at the option of adoption. Adopted children present with a unique collection of psychological issues, many of which are rooted in a history of disrupted attachment. Children with attachment-related disturbances inevitably manifest with a variety of behaviors that often can be classified as oppositional or disruptive. With more attention by researchers and clinicians on the effects on children of growing up in a gay or lesbian household, it is important that other variables be considered besides the sexual orientation of the parents. Otherwise, conclusions can be drawn that don't accurately reflect the total picture for these children and families.     

Analysis of a long-term study of neurotic disorder, with insights into the process of non-response

Summary.  The paper studies the non-response process in a long-term study of neurotic dis-order by comparing the analysis based on the responses that were collected by the established practice of interviewing the subjects, at dates arranged in advance (appointments), with the analysis of the nearly complete set of responses that were collected by an extensive effort that involved attempts to interview without seeking a prior agreement. The method of multiple imputation is applied, and its properties are explored in a setting that is not perfectly suited for its application: a relatively small sample size, ordinal score outcomes and the likelihood that the outcomes are missing not at random.     

军事经济周期的统计分析

一、军事经济周期的内涵(一)经济周期的概念与类型经济学家普遍接受的经济周期定义是美国经济学家密契尔(W.C.Mitchell)给出的“经济周期是市场经济为主的国家总体经济活动的一种波动,一个周期是由很多经济活动的差不多同时扩张,继之以普遍的衰退、收缩与复苏所组成的,这种变动     

开展心理教育 把握健康人生

大学生抽样调查表明,大学生心理疾病患病率高迭20.23%.大学生群体暴露出来的问题并非完全是大学生自身造成的,很多问题是个体在所处的家庭环境.小学到高中所受的教育中积累潜伏下来的.大学生心理问题的日趋复杂化,要求教育工作者要不断提高自身的心理素质,采取相应的措施开展心理教育,使他们健康地迈向生活.     

多元长记忆SV模型及其在沪深股市的应用

对多元长记忆随机波动进行建模,并给出了相应的谱似然估计方法以及在多元随机波动模 型框架下分数维协整的检验步骤. 最后用上海和深圳的数据对所给的模型与方法进行了实证检验.     

配合物[Pd(NH_3)_2Cl_2]顺反异构红外吸收光谱的群论研究

采用群论的方法,通过分子对称性的分析,讨论了配合物［Ｐｄ（ＮＨ３）２Ｃｌ２］顺反异构的红外吸收光谱,并与实验事实进行了比较,得到了满意的结果     

Family Experience of Borderline Personality Disorder

Individuals with borderline personality disorder (BPD) struggle with unbearable emotions that arise out of interpersonal difficulties. Self‐harm and suicidal behaviours serve to regulate these emotions and to gain a sense of well‐being and control in a treatment context where hospital admissions are avoided by mental health services. Clinician engagement with families may be constrained by their knowing the accepted etiology of the disorder, which includes a causal link with the family environment. Other constraining factors include the negativity of those with BPD toward their family, and their clinicians' diagnostic uncertainty or confusion. This qualitative study explored the experience of families whose close relative with BPD has a long history of self‐harm and/or suicide attempts. Family members were found to have chronic and traumatic stress. Family roles and relationships were strained, as were relationships between the family and the mental health system. The findings of this study indicate that treatment for BPD needs to adopt a systemic approach that considers individuals and their significant family relationships, as well as relationships between the family and treatment providers.