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排序方式: 共有69条查询结果,搜索用时 46 毫秒
1.
Jared L. Deutsch Clayton V. Deutsch 《Journal of statistical planning and inference》2012,142(3):763-772
Complex models can only be realized a limited number of times due to large computational requirements. Methods exist for generating input parameters for model realizations including Monte Carlo simulation (MCS) and Latin hypercube sampling (LHS). Recent algorithms such as maximinLHS seek to maximize the minimum distance between model inputs in the multivariate space. A novel extension of Latin hypercube sampling (LHSMDU) for multivariate models is developed here that increases the multidimensional uniformity of the input parameters through sequential realization elimination. Correlations are considered in the LHSMDU sampling matrix using a Cholesky decomposition of the correlation matrix. Computer code implementing the proposed algorithm supplements this article. A simulation study comparing MCS, LHS, maximinLHS and LHSMDU demonstrates that increased multidimensional uniformity can significantly improve realization efficiency and that LHSMDU is effective for large multivariate problems. 相似文献
2.
This study examined how Turkey uses social media as a tool for public diplomacy and how the state’s soft-power efforts have recently changed on the global stage. The researchers constructed a dataset of 2769 Twitter posts by the Turkish government’s most influential public diplomacy accounts. The analyses revealed that the focus of Turkey’s Twitter public diplomacy has become concentrated on the Middle East and North Africa (MENA) region and is thematically focused on the political values embodied by the Turkish president. The findings suggest that public diplomacy remains to be the diplomacy of the government, not of the public, and social media is used as just another tool for propaganda, not as a means of engagement with foreign publics. Further, the findings indicate the emergence of a “new” cult of personality in public diplomacy and point out the instrumental role of social media in changing the dynamics of leader-follower relationship. The study contributes to public relations theory and practice by advancing the burgeoning public diplomacy scholarship at the intersection of social media and relational approaches. 相似文献
3.
Cameron C. Brown Zenova Williams Jared A. Durtschi 《Journal of marital and family therapy》2019,45(4):650-667
Minimal research has examined interracial couples’ relationship satisfaction and dissolution patterns over time. Using dyadic data across 8 years, we examined potential differences in relationship quality trajectories through latent growth curve modeling with 1,336 couples as well as differential risks for relationship dissolution through logistic regression between same‐race and interracial relationships using a different subset of 2,370 couples. Results indicated that women in interracial relationships were significantly lower in initial relationship quality than women in same‐race relationships. Further, interracial couples of Black‐Hispanic partnerings were twice as likely to separate across 8 years than same‐race couples. These results suggest that despite interracial relationships not substantively differing from same‐race couples in trajectories of relationship quality, specific Black‐Hispanic interracial couples are at a higher risk of eventual separation. 相似文献
4.
5.
Pamela Jo Brubaker Scott Haden Church Jared Hansen Steven Pelham Alison Ostler 《Public Relations Review》2018,44(5):741-751
This study explores how online publics are engaging with organizations by creating and sharing brand-related content online, outside corporate-controlled communication environments. This research employs a quantitative content analysis of memes shared on the social networking site Imgur to reveal how user-generated content conveys meaning about organizations. The analysis reveals brand-centric memes are generally classified as orphan memes, or memes that have distinct textual and visual characteristics separating them from established or emerging meme families. Memes about organizations are neither an overwhelming reflection of biting criticism or support, but rather a reflection of online public engagement with organizations that primarily use humor and textual brand features (or quiddities) to convey their commitment and satisfaction with the organization and unite meme families. 相似文献
6.
The Dyadic Effects of Supportive Coparenting and Parental Stress on Relationship Quality Across the Transition to Parenthood
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Jared A. Durtschi Kristy L. Soloski Jonathan Kimmes 《Journal of marital and family therapy》2017,43(2):308-321
The transition to first‐time parenthood can be challenging for couples. Using a sample of 848 ethnically diverse couples from the Fragile Families and Child Wellbeing Study across the first 3 years of parenthood, we investigated the longitudinal and dyadic associations of each parents’ parental stress, supportive coparenting, and relationship quality. Results from an actor–partner interdependence model indicated that supportive coparenting significantly predicted higher relationship quality for both mothers and fathers. Fathers’ supportive coparenting significantly buffered the effects of mothers’ parental stress on relationship quality. Also, the unique dyadic contexts of each parents’ supportive coparenting, and also both partners’ parental stress were significantly associated with relationship quality. Clinical implications from these findings are discussed through commonly used clinical theories. 相似文献
7.
This research is based on in-depth ethnographic interviews and focus groups with 88 African American family caregivers from various regions of the United States during a stressful time in their family development--caregiving at the end-of-life--and the grieving during the aftermath. The study employed a stratified purposeful sampling strategy. Subjects were African Americans from the Northern, Southern, and Midwestern United States. Formal care is complicated by the distrust that many African Americans hold toward the health care system, which has resulted from years of exclusion, racism and discrimination. The findings highlight the importance of hearing from African American families to gain an understanding of what services, including family therapy and other psychotherapy, they will need during this process. 相似文献
8.
Anita E. Woolfolk Lindsay M. Abrams David B. Abrams G. Terence Wilson 《Journal of Nonverbal Behavior》1979,3(4):205-218
Three male and three female raters were shown videotapes of 29 male subjects who were speaking to a silent female confederate. Raters were asked to make 10 judgments about the subjects' behavior. The subjects had been assigned to one of two expectancy conditions in which they were led to believe the drink they consumed prior to meeting the confederate contained alcohol and tonic or tonic only. Actually, half of the subjects in each expectancy condition received alcohol and half received tonic only. Judgments of the female raters viewing the videotapes were congruent with physiological measures of the subjects' anxiety. Those subjects who believed they received alcohol were perceived by female raters as more relaxed, less anxious, less inhibited, and more dominant than subjects who believed they received tonic. The actual content of the drink had no significant effects on the raters' judgements of the subjects' behavior. Male raters were unable to discriminate among the experimental conditions. Implications for possible gender of rater effects in behavioral assessment procedures as well as for the impact of beliefs on nonverbal communication are discussed. 相似文献
9.
The use of therapeutic interventions to reduce crowding-related arousal: A preliminary investigation
Robert A. Karlin Sally Katz Yakov M. Epstein Robert L. Woolfolk 《Journal of Nonverbal Behavior》1979,3(4):219-227
Studies of mass transportation crowding have universally shown that such crowding is arousing and often anxiety producing. Attempts to intervene to reduce arousal and anxiety have met with mixed results. In this study four therapeutically based interventions were used to reduce the arousal evoked by a laboratory analogue of mass transportation crowding. Subjects in the intervention conditions showed significantly fewer increases in pulse rate during crowding. Two of the intervention conditions showed significant decreases in skin conductance level when compared to subjects in an uninstructed crowded condition. An intervention which increased feelings of control over the environment resulted in a more positive view of the environment but did not decrease physiological arousal any more than interventions which did not increase perceived control.The research reported in this paper was sponsored by grants from Rutgers University Research Council to Yakov M. Epstein and Robert A. Karlin. 相似文献
10.
Tania Tam Miles Hewstone Jared B. Kenworthy Ed Cairns Claudia Marinetti Leo Geddes Brian Parkinson 《The Journal of social issues》2008,64(2):303-320
Even after a conflict has formally ended, there is still a need for postconflict reconciliation and the building of mutual forgiveness and trust between communities. This article addresses psychological processes crucial to moving beyond a history of violent sectarian conflict in Northern Ireland. We investigated the predictors of intergroup forgiveness, in terms of intergroup emotions, infrahumanization, empathy, and intergroup contact. Intergroup trust and measures of implicit intergroup bias were also explored in this area of real intergroup conflict. The results are discussed in terms of their implications for postconflict reconciliation in Northern Ireland and other conflict areas. 相似文献