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Azadeh Moghtaderi Glen Takahara David J. Thomson 《Revue canadienne de statistique》2010,38(1):116-135
This paper is concerned with undoing aliasing effects, which arise from discretely sampling a continuous‐time stochastic process. Such effects are manifested in the frequency‐domain relationships between the sampled and original processes. The authors describe a general technique to undo aliasing effects, given two processes, one being a time‐delayed version of the other. The technique is based on the observations that certain phase information between the two processes is unaffected by sampling, is completely determined by the (known) time delay, and contains sufficient information to undo aliasing effects. The authors illustrate their technique with a simulation example. The theoretical model is motivated by the helioseismological problem of determining modes of solar pressure waves. The authors apply their technique to solar radio data, and conclude that certain low‐frequency modes known in the helioseismology literature are likely the result of aliasing effects. The Canadian Journal of Statistics 38: 116–135; 2010 © 2010 Statistical Society of Canada 相似文献
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AbstractNormative homo-sociality, physical sex-segregation and other oppressive gender politics in Iran raise questions about the development of bisexuality as an “identity” among Iranian women. This study examines the lived experience of Iranian bisexual women. Six self-identified bisexual women were recruited by two announcements in Iranian LGBTI community social media. After in-depth online interviews, data were coded and analyzed by inductive thematic analysis method. Seventeen themes in three broad patterns (identity, social structure and relationship) are found across and within the data. Themes such as biphobia, confusion and self-definition are in concordance with studies of the western bisexual population. Themes related to social structure are unique and reflect the particular socio-cultural condition of non-heterosexual women in Iran. 相似文献
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This study was conducted in order to compare the attachment styles of sexual minorities and their heterosexual counterparts. The study participants consisted of a non-probability sample of 62 lesbians and gay men (LG) and 13 bisexual men and women (mean age = 25.50, SD = 5.09) living in various cities in Iran. There were also 75 heterosexuals selected from the general population and matched with the study group based on age, sex, and educational level. Each person completed the Revised Adult Attachment Scale (RAAS) and a demographic data sheet. In addition, the groups of sexual minorities were also asked to address additional items related to their status as sexual minorities. The results showed that, compared to heterosexual participants, lesbian, gay, and bisexual (LGB) people scored significantly higher on the anxiety subscale of RAAS. Among sexual minorities, there was no significant difference between bisexual and LG people's attachment styles. Also, those who were not satisfied with their orientation were less dependent and more anxious. Different developmental experiences and negative social attitudes toward LGB people could explain the more anxious attachment style in the LGB group. 相似文献
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AbstractAnalysis capability indices for symmetric process in normal case is obtained via maximum entropy approach of distribution function of the data. In view of it, we have perused on production processes to be in statistical control. Generally a process is capable based on capability indices when its reasonable index was more than a known threshold value. Thus by conditioning on indices, the most general distribution is found out whose parameters can be approximated by using the data of process. Also analysis via Kullback-Leibler information measure based on the above arguments is obtained in the last part of the paper. 相似文献
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Gholam Hossein Ghaedi Azadeh Tavoli Maryam Bakhtiari Mahdieh Melyani Mahdi Sahragard 《Social indicators research》2010,97(2):247-256
Prior studies demonstrating quality of life impairment in phobia and anxiety disorders have relied upon epidemiological samples or clinical data. Using the same quality of life scale, the Short Form 36-item Health Survey (SF-36), in Iranian college students allowed us to study the impact of social phobia (SP) on quality of life among the college students. This report summarizes findings from a cross sectional study on Iranian students with social phobia studying at Shahed University. Quality of life was measured using the Short Form 36-item Health Survey (SF-36) which is a widely used and valid questionnaire to measure quality of life in cross-sectional and longitudinal studies. Three standard instruments were used to measure social phobia severity, namely Social Phobia Inventory, Social Interaction Anxiety Scale, and Brief version of the Fear of Negative Evaluation Scale. The sample consisted of 202 college students, 72 with SP and 130 without SP. The main finding of this study was that students with social phobia reported significantly lower quality of life, particularly in general health (P = 0.02), vitality (P < 0.0001), social functioning (P < 0.0001), role functioning—emotional (P < 0.0001), and Mental health (P = 0.001) dimensions. Standardized summed scores for mental health components of the SF-36 showed that 36.2% of all the s with SP were severely impaired while 16.0% of the students in control croup were severely impaired. Findings demonstrated that Iranian socially anxious college students reported extensive functional disability, and lower well-being compared to those without SP. These findings should encourage education officers to implement systematic efforts to prevent and treat social anxiety among students. 相似文献
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Azadeh Masalehdan Block Ashley N. Rossi Charlla D. Allen Mari Alschuler Vanessa B. Wilson 《Social Work Education》2016,35(6):643-658
Bachelor’s level social workers serve a population that is becoming more diverse. Social work educators must respond with adapted teaching methods, theories, and exercises to reflect the growing need for cultural competence in our practitioners. The 2015 Educational Policy and Accreditation Standards (EPAS) outline the knowledge, value, and skills competencies central to social work education. These competencies include thorough integration of cultural competence in social work education; the ways in which this content is taught likely vary greatly between programs. This study assessed whether students gained competence as a result of taking a bachelor’s level social work (BSW) course in cultural diversity at a mid-sized public university. Furthermore, the study assessed whether their level of competence was related to student demographics, such as being from an urban or rural community. One hundred twenty-three students completed the California Brief Multicultural Competence Scale (CBMCS) at the beginning and end of a course specifically dedicated to cultural competence. Results indicate that the course itself is effective in increasing significantly student’s self-reported cultural competence. Study results lay the foundation for future research that will (1) assess more broadly the implications of a specific cultural competence course and (2) aid in the development of a social work-specific measure of cultural competence. 相似文献
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Azadeh Masalehdan Block Catherine G. Greeno 《Child and Adolescent Social Work Journal》2011,28(5):393-420
This literature review explores the research to date on adolescent mental health treatment drop out. As many as one in five
adolescents in the United States has been diagnosed with an Axis-I psychiatric disorder. Adolescents with Axis-I psychiatric
disorders face significant short- and long-term consequences if they do not obtain mental health treatment. However, treatment
dropout research has focused on child and adult populations with little focus on the unique issues that are likely to impact
adolescents. The theoretical underpinnings for understanding adolescent mental health treatment are explored in relation to
adolescent psychological development and the therapeutic alliance. The review concludes with suggestions for future research
to extend our understanding of adolescent treatment drop out. 相似文献
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