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Expression and Reception: An Analytic Method for Assessing Message Production and Consumption in CMC
Kang Namkoong Dhavan V. Shah Bryan McLaughlin Ming-Yuan Chih Tae Joon Moon Shawnika Hull 《Communication methods and measures》2017,11(3):153-172
This article presents an innovative methodology to study computer-mediated communication (CMC), which allows analysis of the multi-layered effects of online expression and reception. The methodology is demonstrated by combining the following three data sets collected from a widely tested eHealth system, the Comprehensive Health Enhancement Support System (CHESS): (1) a flexible and precise computer-aided content analysis; (2) a record of individual message posting and reading; and (3) longitudinal survey data. Further, this article discusses how the resulting data can be applied to online social network analysis and demonstrates how to construct two distinct types of online social networks—open and targeted communication networks—for different types of content embedded in social networks. 相似文献
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IntroductionTheHitchcock’sTransportationProblem(HTP)canbeformulatedasaclassiclinearprogrammingprobleminwhichthesetofconstraintsisofaspecialstructure[1,2].TheHTPisapracticaltransportationprobleminproductiondistributionsector.Alotofpracticaltrans-portationandassignmentproblems,suchastheminimumcostroadnetworktrafficflowproblemwithsolidchargeinlogistics,canbeformulatedinthisway,anditisclearlythattheHTPmaybehasmorethanoneoptimalsolution.Itisveryimportantforadecision-makertoselectafavorableone… 相似文献
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Tae Kyoung Lee Alan Meca Jennifer B. Unger Byron L. Zamboanga Lourdes Baezconde-Garbanati Melinda Gonzales-Backen Elma I. Lorenzo-Blanco Miguel Á. Cano Sabrina E. Des Rosiers Daniel W. Soto Juan A. Villamar Monica Pattarroyo Karina M. Lizzi José Szapocznik Seth J. Schwartz 《Child development》2020,91(1):78-95
Acculturation consists of multiple domains (i.e., cultural practices, identifications, and values). However, less is known about how acculturation processes influence each other across multiple domains of acculturation. This study was designed to investigate transition patterns of acculturative processes within and across domains in a sample of 302 recent-immigrant Hispanic adolescents, Mage (SD) = 14.51 years (0.88) at baseline; male = 53%). Adolescents were assessed six times over a 3-year period. Latent profile analyses identified two profiles (high [or increasing] vs. low) for each domain at each timepoint. We found largely stable transition patterns in each domain over six timepoints. Importantly, sequential associations among profiles in acculturation domains were also detected. Implication for acculturation theory and research are discussed. 相似文献
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Jun Y Cho Dae Y Hwang Tae S Kang Dong H Shin Jin H Hwang Chae H Lim 《Journal of sports sciences》2013,31(11):943-951
In its late stage, Alzheimer's disease results in progressive muscle weakness in the arms and legs. The aim of this study was to determine whether mice expressing the skeletal muscle-specific mutant PS2 gene (a model of Alzheimer's disease) are a useful experimental system to study the protective effect of exercise on Aβ-42 reduction, improvement of behavioural function and changes in metabolic parameters. With this aim in mind, the transgenic mice were subjected to treadmill exercise for 3 months. The results showed that in transgenic mice, but not in normal mice, treadmill exercise resulted in a reduction of Aβ-42 deposits and an improvement in behavioural function, thereby restoring normal concentrations of total cholesterol, high-density lipoprotein cholesterol, low-density lipoprotein cholesterol and triglyceride. Thus, exercise may represent a practical therapeutic strategy for use with human patients with Alzheimer's disease. 相似文献
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Factors Affecting Student Choice of Career in Science and Engineering: parallel studies in Australia,Canada, China,England, Japan and Portugal 总被引：1，自引：1，他引：0
Brian E. Woolnough Yuying Guo Maria Salete Leite Maria Jose de Almeida Tae Ryu Zhen Wang 《Research in Science & Technological Education》2013,31(1):105-121
This paper describes parallel studies carried out in six countries which investigated the factors which influence school students towards careers and higher educational studies in the physical sciences or technology. The studies consisted of a common questionnaire survey, supplemented by student interviews. It reveals differences between scientists and non scientists in regard to their preferred learning styles, to the broad factors which were influential in their career choice and to their self perception against different personality types. Many factors are common across a wide range of countries. Implications of these findings for schools, higher education and government are discussed. 相似文献
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Objectives
The objectives of this study are to assess children's competence to state their traumatic experience and to determine psychosocial factors influencing the competency of children's statements, such as emotional factors of children and parents and trauma-related variables, in Korean child sex abuse victims.Methods
We enrolled 214 children, who visited “Sunflower Children's Center” for sexual abuse. The children were aged 8-13 years. The children's parent were surveyed using questionnaires [Beck Depression Inventory (BDI), State-Trait Anxiety Inventory(STAI)] to obtain demographic information, traumatic event profiles and self-report scale. Children completed psychological measures as follows: Children's Depression Inventory (CDI), Revised Children's Manifest Anxiety Scale (RCMAS), Traumatic Symptom Checklist for Children (TSCC). The modified-Criteria-Based Content Analysis (CBCA) was used to assess children's statements. ANOVA, independent t-test, Pearson correlation were used. All statistics were demonstrated using SPSS 12.0.Results
Modified-CBCA scores did not differ according to children's level of depression and anxiety. Children with parents who showed supportive reactions, scored significantly higher on the modified-CBCA scores than those with unsupportive parents. Children with severely depressed parents had lower modified-CBCA scores than those with less depressed parents. Modified-CBCA scores were significantly higher in participants who experienced a single traumatic event than those who had multiple events. However, the severity of sexual abuse, relationship with the perpetrator, types of disclosure, and duration of initial disclosure did not show significant differences in capability of statement.Conclusion
In conclusion, the competence of statements in Korean sexually child sex abuse victims is related to parental emotional states and support rather than children's factors such as psychopathology or age, and appears to be more reliable with a single traumatic experience. Therefore, promoting parental support through psychoeducation is one of the most important things to be done to help children overcome psychologic trauma but also enhance the accuracy of their statement. 相似文献7.
This paper is concerned with the stability analysis of time-varying delay systems. Unlike the construction of augmented Lyapunov functional and multiple integral Lyapunov functional, novel three Lyapunov functionals are suggested which are delay product type functions and lead to less conservative results. Based on newly developed Lyapunov functionals, three stability criteria are derived and their superiority is described by three numerical examples. 相似文献
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AbstractTaekkyeon, a Korean traditional martial art focussing on the harmony of the individual and community has been listed as the first martial art of the UNESCO Representative List of the Intangible Cultural Heritage of Humanity in 2011. Though taekkyeon involves competitive elements as a martial art, taekkyeon masters and practitioners have emphasized its natural and playful characteristics, with connecting the peace of the inner self and the unity of the community. The increasing demand on the preservation and promotion of taekkyeon as an intangible cultural tradition has involved the intertwined processes of heritagization and institutionalization. This paper identifies and conceptualizes the two development processes of preserving and promoting taekkyeon. 相似文献
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Rapid prototyping of polydimethylsiloxane (PDMS) is often used to build microfluidic devices. However, the inherent hydrophobic nature of the material limits the use of PDMS in many applications. While different methods have been developed to transform the hydrophobic PDMS surface to a hydrophilic surface, the actual implementation proved to be time consuming due to differences in equipment and the need for characterization. This paper reports a simple and easy protocol combining a second extended oxygen plasma treatments and proper storage to produce usable hydrophilic PDMS devices. The results show that at a plasma power of 70 W, an extended treatment of over 5 min would allow the PDMS surface to remain hydrophilic for more than 6 h. Storing the treated PDMS devices in de-ionized water would allow them to maintain their hydrophilicity for weeks. Atomic force microscopy analysis shows that a longer oxygen plasma time produces a smoother surface. 相似文献
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