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Pawel Popiel 《广播与电子媒介杂志》2020,64(2):341-364
ABSTRACT The content of political communication of independent regulatory agencies (IRAs) is understudied. Combining computational text analysis and qualitative document analysis, this study analyzes over 7,500 speeches and statements of Federal Communications Commission (FCC) commissioners, given over two decades, to examine how political and industry influence on policymaking manifest themselves discursively. The results shed light on how external factors, such as regulator party affiliation and passage through the revolving door, exert influence on IRAs by impacting agenda-setting processes and occasionally the content of regulators’ political communication. However, the findings also reveal the contingency of this influence in selected contexts as well. 相似文献
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Pawel Popiel 《Critical Studies in Media Communication》2017,34(3):220-233
This paper engages discourses about the nature of creative work through a case study of creative worker freelancing on Upwork, an online marketplace. The analysis begins by contextualizing the growth of freelancing in a transformation of capitalism to a mode of flexible accumulation. It is framed against neoliberal narratives about the creative economy, including promises of financial success and freedom from rigid Fordism. An exploration of the characteristics of technology-mediated work on Upwork, including contract structure, wages, consistency of work, risk-management strategies, and profiles of clients and freelancers follows. The findings suggest that despite the company’s emphases on efficiency, flexibility, and freedom from the physical office, freelancers face significant trade-offs in undertaking such work, notably its infrequency, barriers to high wages, and intense global competition. The discussion addresses structural drivers of precarity in the marketplace and of its ongoing success. 相似文献
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Current cognitive multimedia design theories provide several guidelines on how to integrate verbal and pictorial information.
However, the recommendations for the design of auditory texts (narrations) are still fragmentary, especially with regard to
the characteristics of the voices used. In the current paper, a fundamental question is addressed, namely, whether to use
a male or a female speaker. In two experiments, learners studied dynamic visualizations on probability theory that were accompanied
by narrations. The learner’s gender and the speaker’s gender served as between-subjects variables. In the first study, learners
were randomly assigned to speakers of different gender. In the second study, learners could choose among different speakers.
The results show that learners achieved better learning outcomes when the narration was presented by a female speaker rather
than a male speaker irrespective of the learner’s gender (speaker/gender effect). Being given the choice, learners preferred
female speakers, but this individual preference had no impact on learning outcomes. The results suggest augmenting purely
cognitive approaches to multimedia design by social-motivational assumptions. 相似文献
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Affordable and ubiquitous online communications (social media) provide the means for flows of ideas and opinions and play an increasing role for the transformation and cohesion of society – yet little is understood about how online opinions emerge, diffuse, and gain momentum. To address this problem, an opinion formation framework based on content analysis of social media and sociophysical system modeling is proposed. Based on prior research and own projects, three building blocks of online opinion tracking and simulation are described: (1) automated topic, emotion and opinion detection in real-time, (2) information flow modeling and agent-based simulation, and (3) modeling of opinion networks, including special social and psychological circumstances, such as the influence of emotions, media and leaders, changing social networks etc. Finally, three application scenarios are presented to illustrate the framework and motivate further research. 相似文献
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Cieszczyk P Ostanek M Leońska-Duniec A Sawczuk M Maciejewska A Eider J Ficek K Sygit K Kotarska K 《Journal of sports sciences》2012,30(1):31-35
The aims of this study were to determine the distribution of the AMPD1 genotype among groups of high-level Polish power-oriented athletes, and to investigate potential associations between genetic polymorphism in exon 2 of the AMPD1 gene and power-oriented athlete status. Altogether, 158 male Polish power-oriented athletes were genotyped by PCR-RFLP. The genetic control group comprised 160 unrelated male volunteers. We observed significant differences in genotype distribution when all 158 athletes (89.25% CC, 10.75% CT, 0.00% TT; P = 0.0025) were compared with controls (75.00% CC, 23.75% CT, 1.25% TT). A significant deficiency of the T allele was noted in all subgroups (short-distance runners: 5.21%, P = 0.032; short-distance swimmers: 5.56%, P = 0.031; weightlifters: 5.36%, P = 0.024) compared with controls (13.13%), while this trend was even stronger when the frequency of the T allele was compared between controls and all 158 athletes (5.38%, P = 0.0007). Our results indicate a lower frequency of the AMPD1 exon 2 T34 allele in elite Polish power-oriented athletes. Our data suggest that the C allele may help athletes to attain elite status in power-oriented sports. 相似文献
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Pawel Linek Pardis Noormohammadpour Mohammad Ali Mansournia Tomasz Wolny Damian Sikora 《运动与健康科学(英文)》2020,9(6):614-619
BackgroundMost papers examining the lateral abdominal muscles (LAMs) and low back pain (LBP) are cross-sectional, with groups of participants being divided into a control and an LBP group. We hypothesized that morphological measurements of the LAMs in adolescent soccer players may predict future LBP incidence. The aim of this study was to examine the associations between the morphology of LAMs and LBP incidence rate among adolescent soccer players.MethodsNinety-seven adolescent male soccer players with no LBP at baseline were recruited into the prospective cohort study. The thickness of the LAMs was measured at baseline by ultrasound imaging in a supine rest position. Nine cases of LBP occurred during the follow-up 6-month observation.ResultsAn obliquus internus (OI) asymmetry was related to increasing LBP risk (odds ratio = 19.99; 95%CI: 2.4–167.9). Spearman correlation also showed a linear relationship between OI asymmetry value and duration of LBP (R = 0.75, p = 0.02). An OI side-to-side difference greater than 1.25 mm suggests possible LBP incidence in the 6-month observation among adolescent soccer players.ConclusionThe morphological changes of the OI may be related to LBP’s incidence in adolescent soccer players. The presence of OI asymmetry increases the odds of LBP by at least 2.4 times. Hypertrophy of the OI on one side of the body may contribute to trunk muscle imbalance. 相似文献
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