The Rate and Delay in Overload: An Investigation of Communication Overload and Channel Synchronicity on Identification and Job Satisfaction     

Jaehee Cho  Dina Inman Ramgolam  Kimberly Mary Schaefer  Anu Nadina Sandlin 《Journal of Applied Communication Research》2013,41(1):38-54

This study investigates the relationship between communication overload and uses of diverse communication channels in terms of their level of synchronicity. Emphasis on the synchronicity of any given channel reveals how temporal elements (i.e., rate and processing time) play an important role in perceptions of communication load. Additionally, this study examines the association between communication overload, organizational identification and job satisfaction. Findings reveal: (a) both high and low synchronous channels are associated with increased reports of communication overload; (b) a mediating effect of organizational identification on the relationship between communication overload and job satisfaction; and (c) a moderating effect of communication overload on the relationship between low synchronous channels and organizational identification.  相似文献   

Exploring opportunities available and perceived barriers to physical activity engagement in children and young people with Down syndrome     

Samantha J. Downs  Lynne M. Boddy  Zoe R. Knowles  Stuart J. Fairclough  Gareth Stratton 《欧洲特需教育杂志》2013,28(3):270-287

Primary objective: The aim of this study was to explore physical activity (PA) amongst children and young people with Down syndrome (DS). Method and procedures: The youth physical activity promotion model (YPAP) was used to inform semi-structured interviews to explore PA of children and young people with DS. Participants were three males and five females, aged between 6 and 21?years (16.38?+?5.04?years (mean?+?SD)) who had been diagnosed with the condition DS. Dyadic interviews were conducted with the participant and their parent(s). The interviews were recorded and transcribed, and inductive and deductive analyses of the data were completed. Main outcomes and results: The results were structured around the YPAP Model’s key themes included: enabling factors (seasonal variation, transport, type of activity and independence); predisposing factors (enjoyment, social interaction, dislikes of PA, following instructions, and understanding of PA); reinforcing factors (support and opportunities, parents, and care providers); and barriers to PA engagement (ear problems). Conclusion: The children and young people with DS in the study typically only engaged in fun, unstructured activities. Key facilitators for PA participation were social interactions and parental support. Increasing the level of independence for people with DS within adolescence may have beneficial effects for PA participation in later life.  相似文献   

Influence of a Non-formal Environmental Education Programme on Junior High-School Students’ Environmental Literacy     

Daphne Goldman  Orit Ben Zvi Assaraf  Dina Shaharabani 《International Journal of Science Education》2013,35(3):515-545

One of the solutions implemented by schools for conducting value-based environmental education (EE) is outsourcing: allocating external environmental organizations that develop and conduct EE programmes. This study addressed such a programme—the Green Council Programme (GCP)—developed and implemented in schools by the Israeli Society for Protection of Nature. A pre-test/post-test design was used to investigate the influence of participation in the GCP on components of junior high-school students' environmental literacy. Conceptualizations of ‘environment’, environmental attitudes and sense of ability to act on environmental issues were studied employing quantitative and qualitative tools. Contribution of the programme to the cognitive domain, in developing a systemic understanding of the environment, was limited. On the other hand, participating in this programme heightened students' sensitivity to human–environment interrelationships and developed a more ecological worldview. After the programme, students demonstrated greater perception of humans as part of the environment, an increased sensitivity to human impact on the environment and their value for non-human nature moved from an anthropocentric to a more ecocentric orientation. While students' internal locus-of-control increased, when environmental protection entailed personal economic trade-offs, their support was limited and remained unchanged. The article concludes with recommendations, based on the findings, regarding supplementing the school (science) curriculum with external EE enrichment programmes.  相似文献   

Pre-micro RNA-499 Gene Polymorphism rs3746444 T/C is Associated with Susceptibility to Rheumatoid Arthritis in Egyptian Population     

Shaimaa A. Fattah  Maivel H. Ghattas  Samy M. Saleh  Dina M. Abo-Elmatty 《Indian journal of clinical biochemistry : IJCB》2018,33(1):96-101

Pre-miRNA-499 gene is associated with autoimmune disease. Mir-449 rs3746444 polymorphism is inconsistent for rheumatoid arthritis (RA). This study aimed to investigate association of mir-499 rs3746444 polymorphism with RA activity and severity in Egyptian population. The study population was conducted as case control study in 100 RA patients diagnosed according to the American College of Rheumatology classification criteria for RA, and the control group included 100 healthy subjects who were age-and sex-matched to the RA group. Different genotypes were assessed using polymerase chain reaction–restriction fragment length polymorphism. 95% Confidence interval and odds ratio were defined to assess the strength of association. Regarding patients, thirty-three patients carried TT genotype, fifty-three patients carried TC genotype and fourteen patients carried CC genotype. So the frequency of the minor C allele in RA patients was significantly higher than the control subjects (P = 0.037). TC, CC genotypes and C allele frequencies were significantly associated with disease severity as they had high rheumatoid factor (55.78 µIU/ml) and anti-cyclic citrullinated peptide (Anti-CCP) antibody (297.32 µIU/ml). Moreover, the heterozygote TC had more severe and more active form of the disease compared with homozygote CC or TT as they had high Anti-CCP antibody, and disease activity score 28 (score 5). Our work suggests that C allele of Pre-miRNA rs3746444 polymorphism contributes to heritability of susceptibility to RA compared to T allele. This polymorphism was associated with the activity and severity of the disease.  相似文献   

Control of impact loading during distracted running before and after gait retraining in runners     

Roy T. H. Cheung  Winko W. An  Ivan P. H. Au  Janet H. Zhang  Zoe Y. S. Chan  Aislinn J. MacPhail 《Journal of sports sciences》2018,36(13):1497-1501

Gait retraining using visual biofeedback has been reported to reduce impact loading in runners. However, most of the previous studies did not adequately examine the level of motor learning after training, as the modified gait pattern was not tested in a dual-task condition. Hence, this study sought to compare the landing peak positive acceleration (PPA) and vertical loading rates during distracted running before and after gait retraining. Sixteen recreational runners underwent a two-week visual biofeedback gait retraining program for impact loading reduction, with feedback on the PPA measured at heel. In the evaluation of PPA and vertical loading rates before and after the retraining, the participants performed a cognitive and verbal counting task while running. Repeated measures ANOVA indicated a significant interaction between feedback and training on PPA (F = 4.642; P = 0.048) but not vertical loading rates (F > 1.953; P > 0.067). Pairwise comparisons indicated a significantly lower PPA and vertical loading rates after gait retraining (P < 0.007; Cohen’s d > 0.68). Visual feedback after gait retraining reduced PPA and vertical loading rates during distracted running (P < 0.033; Cohen’s d > 0.36). Gait retraining is effective in lowering impact loading even when the runners are distracted. In dual-task situation, visual biofeedback provided beneficial influence on kinetics control after gait retraining.  相似文献   

What do we know about mathematics teacher education? What evidence do we have? What comes next?     

Dina Tirosh 《Journal of Mathematics Teacher Education》2009,12(2):83-87

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Electronic Learning Delivery Systems: A Selection Model     

Peter J. Pallesen  Paul Haley  Edward S. Jones  Bobbie Moore  Dina E. Widlake  Karen L. Medsker 《Performance Improvement Quarterly》1999,12(4):7-32

Electronic learning delivery systems discussed include satellite networks, teleconferencing, Internet/Intranet networks, desktop multimedia, electronic performance support systems (EPSS), transportable audio/video (i.e., systems relying primarily on physically transportable audio-and videotaped materials), and the electronically enhanced classroom. Selecting one of these systems can be a daunting task when all relevant issues are considered. The selection model described in this article narrows the choices to the system most likely to be instructionally, economically, and technologically appropriate. After establishing working definitions, the model suggests four stages of user activity: 1) Assessing several important overall factors, including outcomes and conditions of learning, economics, synchronicity and location, and organizational culture; 2) Rating the importance of several learning system attributes to the training project; 3) Selecting the system that most ideally supports the attributes which the user has rated as important; and finally, 4) Validating the selection by reviewing the final choice in light of first stage overall factors.  相似文献   

Family Reading Groups: the beginnings of a community experience in West Hertfordshire     

Dina Thorpe 《Literacy》1982,16(3):143-152

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Development of the ‘Museum Health and Social Care Service’ to promote the use of arts and cultural activities by health and social care professionals caring for older people     

Juliana Thompson  Zoe Brown  Katherine Baker  Jenni Naisby  Sophie Mitchell  Christina Dodds 《Educational gerontology》2020,46(8):452-460

ABSTRACT

It is well documented that engagement in arts and cultural activities contributes to improving and maintaining the health and well-being of older people. Despite this, many health and social care professionals do not recognize or accept arts and cultural activities as relevant to their care remit. To address this, a team of 17 individuals comprising older service users, and staff from a range of health and social care, arts, and museum and archive services in North East England worked collaboratively to design and develop the Museum Health and Social Care Service (MHSCS). MHSCS is a resource and training package that reinforces the care and clinical benefits of arts and cultural activities to older people’s health and wellbeing, aimed at supporting health and social care professionals to acknowledge and use these activities as integral to care delivery.  相似文献   

Reasoning from data: How students collect and interpret data in science investigations     

Zoe Kanari  Robin Millar 《科学教学研究杂志》2004,41(7):748-769

This study explored the understandings of data and measurement that school students draw upon, and the ways that they reason from data, when carrying out a practical science inquiry task. The two practical tasks used in the study each involved investigations of the relationships between two independent variables (IVs) and a dependent variable (DV); in both tasks, one IV covaried with the DV, whereas the other did not. Each was undertaken by 10 students, aged 10, 12, and 14 years (total n = 60 students), working individually. Their actions were video‐recorded for analysis. In a subsequent interview, each student was asked to discuss and interpret data collected by two other students, undertaking a similar (but different) practical task, shown on a video‐recording. An analysis of the sample students' performance on the practical tasks and their interview responses showed few differences across task contexts, or with age, in students' reasoning, but significant differences in performance when investigating situations of covariation and non‐covariation. Few students in the sample displayed sufficient understanding of measurement error to deal effectively with the latter. Investigations of non‐covariation cases revealed, much more clearly than investigations of covariation cases, the students' ideas about data and measurement, and their ways of reasoning from data. Such investigations therefore provide particularly valuable contexts for teaching and research. © 2004 Wiley Periodicals, Inc. J Res Sci Teach 41: 748–769, 2004  相似文献