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.     

Biological Underpinnings of Borderline Personality Disorder

SUMMARY

Biological understanding of a personality disorder is best achieved by examining the disorder's component dimensions, which for borderline personality disorder include impulsive aggression and affective instability. Current biological research into BPD aims to identify the neurotransmitters and brain regions implicated in each of these key domains. Because of advancing technologies and analytic strategies, structural and functional neuroimaging are at the forefront of such efforts. Structural neuroimaging, primarily in the form of magnetic resonance imaging (MRI) scans, gives information about the anatomy of the brain, while functional neuroimaging, primarily functional MRI (fMRI) and positron emission tomography (PET) scans, gives information about brain activity and neurotransmitter systems at the molecular level. BPD neuroimaging studies to date have implied the involvement of several neurotransmitter systems, principally serotonin, along with dysfunction of select brain regions, including the prefrontal cortex and amygdala, suggesting a “dualbrain pathology”: “hyperarousal-dyscontrol syndrome.” However, the exact mechanisms of all these putative etiologies remain unknown.     

Conditional Discrimination in the Intraverbal Relation: A Review and Recommendations for Future Research

Conditional discrimination is inherent in the intraverbal relation when one verbal stimulus alters the evocative effect of another verbal stimulus and they collectively evoke an intraverbal response. Rarely in research on conditional discriminations have both conditional and discriminative stimuli been vocal verbal and rarely have the responses been topography-based. Making conditional discriminations in intraverbal behavior is a repertoire that is often delayed in children with autism and other developmental disabilities. Reviewed in this paper is research on teaching intraverbal behavior, auditory conditional discriminations, and restricted stimulus control. The purpose of these reviews is to identify the extent to which previous researchers examined conditional discriminations in the intraverbal relation and to recommend directions for research in this area.     

Evaluating Lifeworld as an emancipatory methodology

Disability research is conducted within a highly politicised 'hotbed' of competing paradigms and principles. New researchers, who want to work within the social model, are soon faced with complex and challenging methodological and philosophical dilemmas. The social model advocates research agendas that are focused on the emancipation and empowerment of disabled people but, in reality, these are rarely achieved. To be successful researchers need to engage with innovative and creative methodologies and to share their experiences of these within environments that welcome challenge and debate. This paper focuses on Lifeworld and assesses its value as a tool for emancipatory research. Using examples from a study with parents, whose children were in the process of being labelled as having autism, the paper illustrates how the principles that 'underpin' the methodology offered a supportive framework for a novice researcher.     

Discrete Trial Instruction vs. Mand Training for Teaching Children With Autism to Make Requests

The present study compared the effects of discrete trial instruction (DTI) and mand training on the acquisition of independent requests in 6 children with autism. Two multiple-probe designs across participants were conducted with 3 participants receiving mand training followed by DTI and the other 3 receiving DTI followed by mand training. Eye contact and challenging behaviors were also assessed across conditions. Results indicate that 5 of 6 participants made more independent requests and acquired requesting faster in the mand training condition, had slightly better eye contact in the DTI condition, and fewer challenging behaviors in the mand training condition. Overall, the results indicate that mand training is a more efficient method for teaching children with autism to make requests.     

Wavelet processes and adaptive estimation of the evolutionary wavelet spectrum

This paper defines and studies a new class of non-stationary random processes constructed from discrete non-decimated wavelets which generalizes the Cramér (Fourier) representation of stationary time series. We define an evolutionary wavelet spectrum (EWS) which quantifies how process power varies locally over time and scale. We show how the EWS may be rigorously estimated by a smoothed wavelet periodogram and how both these quantities may be inverted to provide an estimable time-localized autocovariance. We illustrate our theory with a pedagogical example based on discrete non-decimated Haar wavelets and also a real medical time series example.     

一种DS/SS信号盲同步算法

提出了一种DS/SS信号盲同步算法,在此基础上利用特征分析法可解决相位不确定性的缺陷。该算法简单有效、计算量小,利于硬件实时处理。理论分析及计算机仿真结果表明,该算法在低信噪比条件下可实现DS/SS信号的盲同步及PN码序列的精确估计。     

关于广谱类变论若干基本概念

广谱类变论的基本概念是在质量互变规律的基础上,运用辩证结构主义思想和广义量化的方法,针对一般事物系统演化规律提出的。其突出的特点就是概念表达更加确切,边界描述更加清晰,实际应用更具有可操作性。