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221.
Francis L. F. Lee 《Chinese Journal of Communication》2017,10(4):450-465
This article examines changes in political communication in Hong Kong in the past 15 years by analyzing the portrayals in mainstream newspapers of the political “backstage,” that is, the part of the political process that is kept from public view. Specifically, the empirical analysis focuses on how the media have utilized the phrase “black materials” in association with political scandals. Based on the qualitative textual analysis of news and commentary articles published in six local newspapers, the findings showed that a significant change occurred in media portrayals of “black material collection” during the study period. Before 2012, the practice was largely ad hoc or tied to elections, and the collection of black materials followed largely legal means. After 2012, the practice was portrayed as routinized, pervasive, and illegal. The changes in the media portrayals both reflected and constructed China as a powerful state with increasing levels of intrusion on Hong Kong affairs. 相似文献
222.
ABSTRACTWe propose point forecast accuracy measures based directly on distance of the forecast-error c.d.f. from the unit step function at 0 (“stochastic error distance,” or SED). We provide a precise characterization of the relationship between SED and standard predictive loss functions, and we show that all such loss functions can be written as weighted SEDs. The leading case is absolute error loss. Among other things, this suggests shifting attention away from conditional-mean forecasts and toward conditional-median forecasts. 相似文献
223.
224.
Chou-Yu Tsai Shelley D. Dionne An-Chih Wang Seth M. Spain Francis J. Yammarino Bor-Shiuan Cheng 《The Leadership Quarterly》2017,28(2):268-284
Drawing on social exchange processes in leader-member exchange (LMX), we posit that expressive relational schema (ERS) and instrumental relational schema (IRS), which refer to knowledge structures in social exchange processes, act as antecedents of follower-rated LMX. Specifically, we discuss how leader-follower relational schema congruence/incongruence informs follower-rated LMX. Using polynomial regression models, we analyze 205 leader-follower dyads and test the congruent/incongruent effects on follower-rated LMX. The findings show that ERS congruence has a positive effect on follower-rated LMX, while IRS congruence has a negative effect on follower-rated LMX. Results also demonstrate that ERS incongruence impairs more follower-rated LMX than does ERS congruence, and IRS incongruence and IRS congruence have the same follower-rated LMX. Implications for LMX theory and research are discussed. 相似文献
225.
Urban Ecosystems - Bats in urban areas depend on trees, and bat activity increases with tree cover. To effectively manage bat habitat in cities, it is important to know the distance to which tree... 相似文献
226.
This article is based on a study conducted in Nigerian Christian and Muslim neighborhoods on the intrigues that characterized adults-adolescent girls’ relations about how and when adolescent girls could use smart phones. Questionnaires, ethnographic interviews, school debates, observations, and focus group discussion methods were used to study the influence of smart phones on adolescent girls’ identity construction, adults-adolescent girls’ tension as regards ownership and use of smartphones, and new dynamics in adolescent girls-male friends’ relationship caused by smart phone uptake. For this population, smart phones display contextual symbolism that transcends their technological meaning, shifting girls’ social dependence from adults to peers and technology. Smart phone use has given adolescent girls a new way of identity construction, empowered them subtly in sexuality negotiation and assigned new roles to them. Adults’ concern about adolescent girls’ use of smart phones is rooted in their fears about the possible negative influences of smart phone use, which they see as entertainment driven and inimical to adolescent girls’ development. Findings of this study revealed that tensions between adults and adolescent girls over smart phone uptake originated from role reversal and expectation-laden nature of smart phones acquired by male friends, which effective mutual sharing of knowledge and resources could address. Adolescent girls should justify their craving for smart phones morally, socially, and psychologically. Adults and social institutions also need to rediscover their new roles in a world where digital innovations are necessities. 相似文献
227.
The River Thames through central London has seen significant environmental recovery, particularly in regard to water quality, but a substantial barrier to further ecological improvement is the spatial restriction of riparian areas. Flood defence walls represent a potential habitat for ecological improvements to benefit biodiversity. However before restoration actions are considered, an understanding of the current biodiversity and ecological status of these structures is necessary. Physical habitat and macroinvertebrate richness of flood defence walls at 15, evenly spaced sites along a 32?Km reach in central London were evaluated. We found no longitudinal patterns in total macroinvertebrate richness among our 15 sites, but did find that richness was influenced by wall type. Specifically, we found the highest richness on brick walls and lowest richness on concrete walls. Further, wall sections with algal cover supported significantly higher numbers of macroinvertebrates than sections lacking algal cover. However, reaches of the river where the channel was constricted had fewer macroinvertebrates likely due to scouring flows. These results show that macroinvertebrates of the river walls are influenced by habitat availability (i.e., wall type) and localised river flows. This work suggests that appropriate management of river wall habitats has the potential to enhance the biodiversity of highly modified, urban rivers. 相似文献
228.
LS Porter DH Baucom FJ Keefe ES Patterson 《Journal of marital and family therapy》2012,38(Z1):284-295
Partner-assisted emotional disclosure is a couple-based intervention designed to help patients disclose cancer-related concerns to their spouses-partners. We previously found that, compared with an education/support control condition, partner-assisted emotional disclosure led to significant improvements in relationship quality and intimacy for couples in which the patient initially reported holding back from discussing cancer-related concerns (Porter et al., 2009, Cancer, 115, 4326-4338). The purpose of this study was to examine the process data from couples who participated in the disclosure sessions including (a) observational ratings of couples' communication during the sessions; (b) couples' ratings of their communication during the sessions; and (c) associations between participants' observed communication and their baseline psychological/relationship functioning. As rated by trained observers, couples' communication was in the moderate range of adaptive skills. Self-report data indicated that participants had positive perceptions of their communication. Observational and self-report ratings were weakly associated. Patients reporting lower levels of relationship quality, higher levels of holding back, and higher partner avoidance at baseline were rated by observers as more expressive during the sessions. Overall, these findings suggest that the intervention was acceptable to couples and was particularly helpful for patients who had difficulty talking with their partners on their own without skills training. 相似文献
229.
Koen Vanbrabant Peter Kuppens Johan Braeken Evelien Demaerschalk An Boeren Francis Tuerlinckx 《Social Networks》2012
Aggression has been associated with negative social consequences. Yet, more adaptive views of aggression hold that it can have beneficial correlates as well. In four studies, we examined the relationship between aggression and personal network size, a property associated with important social benefits. The results pointed to a consistent positive relationship between verbal aggression and social network size. This relationship remained after controlling for third variables like extraversion and when using different measures of network size. The fourth study sought to explain the relationships in terms of mutual relationships with status and power, but found no support for mediation. 相似文献
230.
Estimating the relative importance of vegetation on residential land (gardens, yards, and street-trees) and vegetation on non-residential land (parks and other large green spaces) is important so that competing options for urban conservation planning can be prioritized. We used data from an urban breeding-bird monitoring program to compare the relative effects vegetation on residential land and vegetation on non-residential land (both the amount and type of vegetation at local and landscape scales) on bird species richness and an index of conservation value for the bird community. We then estimated the realised relative benefit of managing the amount of vegetation on these two types of land (i.e., as alternative management options for promoting biodiversity), which might be achieved within the practical limits imposed by human population density. The local effects of increasing residential and non-residential vegetation amount were similar and positive on all measures of bird species richness and conservation value. Non-residential vegetation had an additional landscape-scale influence on bird diversity that residential vegetation did not. Options for managing the amount of non-residential vegetation appear to be more limited by high human population density than for managing the amount of residential vegetation. This suggests that there may be greater realised benefits to bird diversity from managing the amount of vegetation on residential land than from the more common focus of urban planning of managing vegetation on non-residential land. 相似文献