The Impact of Social Media on Dietary Behaviors and Body Image of College Students: A Qualitative Approach

Background: The use of social media platforms for health and nutrition information has become popular among college students. Although social media made information readily accessible in different formats, nutritional misinformation promoted by influencers and non-experts caused negative impact on diet behavior and perception of body image. Previous research indicated that extensive use of social media was positively linked to disordered eating behaviors. Social media platforms like Facebook and Instagram that allow users to follow celebrities intensified exposure to influencers’ messages and images and resulted in negative moods and body dissatisfaction. Objective: This paper aims to explore the impact of social media on college students’ dietary behaviors and body image. Participants: 18 undergraduate students from a public university in the Southern United States were recruited through a mass email. Methods: A cross-sectional qualitative study of three focus groups was conducted. The focus groups were based on guiding open-ended questions. Atlas.ti was used to code and analyze the data using inductive and deductive codes. Results: Three main themes were identified. The conditions theme included elements that explain why and how social media influences the participants’ actions. The actions theme included eating behavior, physical activity, and dietary supplement intake. The consequences theme describes anticipated or actual outcomes of actions such as body image and ideal weight. Conclusions: Social media has had a negative influence on diet behaviors and a positive influence on physical activity. Evidence-based nutrition and weight management information is needed to thwart potential misinformation.

Analysis of particulate behavior in porous media

In this work, we analyze the behavior of the particle phase in the flow of a particle-laden mixture through a porous medium. An attempt is made to model the diffusion and dispersion processes, and to quantify the deviation terms that arise when intrinsic volume averaging is used to derive the flow equations.

DYNAMIC BEHAVIOR OF PILES EMBEDDED IN TRANSVERSELY ISOTROPIC LAYERED MEDIA

Dynamic behavior of single pile embedded in transversely isotropic layered media is investigated using the finite element method combined with dynamic stiffness matrices of the soil derived from Green's function for ring loads. The influence of soil anisotropy on the dynamic behavior of piles is examined through a series of parametric studies.

The Influences of Family, Peers, School and Media in Children's Prosocial Behaviors

Children's skills of social interaction is a significant index of their following psychological development. Prosocial behaviors which influenced by many factors are fundamental representatives of social interaction. Present essay illustrates an indepth review of literature concerning the impacts of family,peers, school and media in Children's prosocial behaviors and also indicates the limitations of each research.

Research on the Model of Consumer Health Information Seeking Behavior via Social Media

Purpose: We aim to create a model of consumer health information seeking behavior via social media, then to have a better understand of it. After that further efforts should be made to provide targeted recommendations for media managers to promote health communication via social media. Methods: Our custom model was derived from literature review, empirical research was tested by the use of questionnaire investigation, and then the collected data were analyzed by structural equation model tool SmartPLS. Finally, the custom model was modified according to the experimental results of SmartPLS. Results: A total of 239 (66.39%) of the respondents were female and 121 (33.61%) were male. The maximum of two stages of age were 18 - 29 (70.56%), 30 - 39 (13.89%). Wechat (60.28%), QQ Zone (55.22%), Micro-blog (48.89%) were the most commonly used social media to obtain health information. About 44.72% of respondents used social media to obtain health information multiple times a day. The whole numerical values of AVE, cronbach’s alpha, CR and square roots of AVE were above the benchmarks of themselves and showed great reliability and validity. All the 11 hypotheses had obvious statistical significance, the P-value of eight path coefficients exhibited <0.001, one path coefficient exhibited <0.01 and two path coefficients exhibited <0.05. Conclusions: A suitable model of consumer health information seeking behavior via social media was created and some inner relationships were found. Namely, gratification of health information and its platform had a positive effect on attitudes toward health information seeking behavior. Health information literacy and health status were proved to have a significant influence on attitudes toward health information seeking behavior, subject norms and perceived behavioral control respectively. In addition, attitudes toward the health information seeking behavior, subject norms and perceived behavioral control were proved to positively associate with health information seeking behavior intention.

User Profile & Attitude Analysis Based on Unstructured Social Media and Online Activity

As social media and online activity continue to pervade all age groups, it serves as a crucial platform for sharing personal experiences and opinions as well as information about attitudes and preferences for certain interests or purchases. This generates a wealth of behavioral data, which, while invaluable to businesses, researchers, policymakers, and the cybersecurity sector, presents significant challenges due to its unstructured nature. Existing tools for analyzing this data often lack the capability to effectively retrieve and process it comprehensively. This paper addresses the need for an advanced analytical tool that ethically and legally collects and analyzes social media data and online activity logs, constructing detailed and structured user profiles. It reviews current solutions, highlights their limitations, and introduces a new approach, the Advanced Social Analyzer (ASAN), that bridges these gaps. The proposed solutions technical aspects, implementation, and evaluation are discussed, with results compared to existing methodologies. The paper concludes by suggesting future research directions to further enhance the utility and effectiveness of social media data analysis.

Methane hydrate formation and dissociation behaviors in montmorillonite

The methane hydrate formation and the methane hydrate dissociation behaviors in montmorillonite are experimentally studied. Through the analyses of the microstructure characteristic, the study obtains the porous characteristic of montmorillonite. It is indicated that methane hydrate in montmorillonite forms the structure I (si) crystal. Meanwhile, molecular dynamics simulation is carried out to study the processes of the methane hydrate formation and the methane hydrate dissociation in montmorillonite. The microstructure and microscopic properties are analyzed. The methane hydrate formation and methane hydrate dissociation mechanisms in the montmorillonite nanopore and on the montmorillonite surface are expounded. Combining the experimental and simulating analyses, the results indicate the methane hydrate formation and methane hydrate dissociation processes have little influence upon the crystal structure of porous media from either micro- or macro-analysis. It is beneficial to the fundamental researches on the exploitation and security control technologies of natural gas hydrate in deep-sea sediments.

企业社交媒体使用与员工行为及心理结果间关系的元分析

作为一种内部沟通与协作的工具,企业社交媒体的使用如何影响员工绩效、工作满意度和工作/生活冲突等一直是企业界与学术界关注的焦点,但相关研究并未得到一致的结论。本文采用元分析方法,基于自2006年“企业2.0”的概念被提出到2021年6月间的54篇中英文实证研究文献,探究企业社交媒体使用对员工任务绩效、创新绩效、工作满意度、工作投入、组织承诺、工作/生活冲突及情绪耗竭这些行为与心理结果变量的影响及其中潜在的调节变量。元分析结果显示:(1)企业社交媒体使用与员工的任务绩效和创新绩效分别有中等强度和高度的正相关关系;(2)企业社交媒体使用与员工的工作满意度、工作投入、组织承诺、工作/生活冲突和情绪耗竭有弱正相关关系;(3)员工使用企业社交媒体的目的是调节企业社交媒体的使用与员工个体结果关系的关键变量,社交媒体类型、国家地域文化和员工职位也会对变量间的关系具有不同程度的调节作用。本文结论对调和以往不一致的研究结果、全面认识企业社交媒体使用行为对员工行为和心理结果变量的影响机理、科学制定企业社交媒体管理决策具有重要意义。

Does New Media Substitute Old Media? A Cohort Analysis of Media Use in China

This study examines generational differences in media use based on pooled-data analysis of CGSS(Chinese General Social Survey)2010-2015.In order to show a full picture of the substitutability between new and old media,the study brings age heterogeneity of respondents and time effect into consideration.This study distinguishes four generations based on the year of birth,with the“newspaper generation”(people who born before 1969),“broadcast generation”(1970-1979),“TV generation”(1980-1989),and“Internet generation”(born after 1990)and aims to explore whether generations differ in their frequency of media use.The research analyses five-year pooled data CGSS 2010-2015(CGSS 2014 data is missing)to examine the influence of Internet on old media among different birth cohorts and how this effect changes over time.New media refers to the Internet;old media includes newspaper,broadcast,and television.The results are summarized as follows:First,for the“newspaper generation”,“broadcast generation”,and“TV generation”,Internet heavy users are usually more willing to use newspaper and broadcast as well.Internet heavy users are information seekers.They have a strong need of information and usually are involved in multi-tasking media activities.Nevertheless,only the Internet heavy users in“TV generation”will regard TV as another channel to get more information,which indicates that generations may adopt specific patterns of media use when they are young and remain faithful to those throughout their lifespans.“TV generation”have a stronger attachment to television than their previous and later generation.Second,in terms of the time effect,the empirical data proved that the broadcast shows a stronger vitality in digital age compared with newspaper and television.The frequency of broadcast use does not drop significantly until 2015.However,the frequency of newspaper and television use has shown a significant downward trend since 2011.Third,for the“Internet generation”,the use of the Internet has no effect on the use of other media.Even Internet heavy user,the one who has strong need of information,would not choose other media to search more information.This suggests that these digital natives would rather confine themselves to the Internet cocoon than collect new information through old channels.This study provides new insight to understand the current media ecology.The relationship between the new and the old media is a changeable and dynamic process and cannot be simply understood as“more-more”or“more-less”relationship.

Corrosion Behavior of Cu₆₀Zr₃₀Ti₁₀Metallic Glass in the Cl^–Containing Solution

Cu60Zr30Ti10 (at. %) ribbon was prepared by melt spinning. Its glassy structure was confirmed by X-ray diffraction (XRD). Its corrosion behavior in HCl and NaCl solutions was investigated by electrochemical polarization measurement. The surfaces before and after corrosion were observed with scanning electron microscope (SEM) and analysis was performed using electron dispersive spectroscopy (EDS). The results show that the decrease of current density is due to the formation of a mixture of simple oxides or complex oxidic compounds. In both cases, the corrosion potential decreases with increasing chloride concentration. The passive film forms easier in HCl than in NaCl. In addition, the higher is the chloride concentration, the easier is the passivation.

Strength criterion of porous media: Application of homogenization techniques

The present paper aims at giving some general ideas concerning the micromechanical approach of the strength of a porous material. It is shown that its determination theoretically amounts to solving a nonlinear boundary value problem defined on a representative elementary volume(REV). The principle of nonlinear homogenization is illustrated based on the case of a solid phase having a Green’s strength criterion. An original refinement of the so-called secant method(based on two reference strains) is also provided. The paper also describes the main feature of the Gurson’s model which implements the principle of limit analysis on a conceptual model of hollow sphere. The last part of the paper gives some ideas concerning poromechanical couplings.

用户跨社交媒体信息行为研究——概念界定、主题归类与未来展望

[目的/意义]通过对过去10余年国内外相关文献的梳理,把握用户跨社交媒体信息行为研究的特征和不足,并提出值得关注的研究方向,为该领域的发展和理论突破提供助力。[方法/过程]在文献检索的基础上,根据研究目的和质量评估筛选文献,再通过内容分析的方式从概念界定、理论基础和主题归类等方面进行总结整理。[结果/结论]用户跨社交媒体信息行为研究具有用户类型多样性、社交媒体异质性、信息线索一致性、行为模式协同性等概念内涵,理论基础聚焦在研究背景、信息需求和信息行为等维度,研究主题可归类为不同用户在不同社交媒体中的信息行为和同一用户在不同社交媒体中的信息行为。未来研究应当进一步扩展概念特征的外延,构建专有的理论模型和深挖其实践价值。

Obesogenic behaviors in U.S. school children across geographic regions from 2003-2007

Background: Increasing levels of obesity are likely associated with obesogenic behaviors such as physical activity (PA) and media time. Examination of regional and state differences in meeting recommendations for obesogenic behaviors would be useful for understanding con- current variations in prevalence of childhood obesity. Therefore the purpose of this study was to analyze the prevalence of boys and girls meeting vigorous physical activity (VPA), daily media (TV/video viewing/video game playing) recommendations, and association with over-weight and obesity across regions of the U.S. between 2003 and 2007. Methods: Data from the 2003 and 2007 National Survey of Children’s Health (n = 109,151;55,540 in 2003 and 53,611 in 2007;51.3% boys, mean (SE) age 11.5 (0.02) years) were used. Prevalence of meeting weekday media (≤ 2 hr/day) and VPA (≥ 3 days/week of minimum 20 minutes) recommendations were calculated. Logistic regression analyses were used to examine differences across regions, dates, sexes, and obesity status. Results: In 2007, the range for met the recommendations among regions was 74.2% - 82.1% for VPA and 77.2% - 83.7% for media viewing. The regions with the highest positive behavior levels were Alaska and Hawaii for VPA and both the Northeast and West regions for media viewing. In 2007 fewer children met media viewing recom- mendations than in 2003 (78.3% versus 83.6%, respectively, p 2hr/day versus ≤ 2 hr/day of media time. Further, the interaction between media time and VPA had a significant (p < 0.0001) association with being overweight or obese. Conclusions: Obesogenic behaviors vary by region in the U.S., appear to be changing over time, and are associated overweight and obesity status, though differences between boys and girls are stable.

数字媒介对大学生健康行为的影响: 健康行为自我效能和身体活动的链式中介效应

目的:探讨健康行为自我效能和身体活动在数字媒介对健康行为的链式中介作用方法:采用数字媒介量表、健康行为量表、健康行为自我效能量表以及身体活动量表,对江西、安徽、云南各抽取一所本科学校共900名大学生进行调查。结果:①数字媒介对健康行为具有正向预测作用;②健康行为自我效能和身体活动在数字媒介对健康行为的影响中均存在单独中介;③健康行为自我效能和身体活动在数字媒介对大学生健康行为的影响中发挥链式中介作用。结论:数字媒介可以直接影响大学生健康行为,既可以通过健康行为自我效能或身体活动的中介作用,也可以通过两者的链式中介作用正向预测大学生健康行为。

Consumer’s Purchase Intention towards Luxury Retailer’s Social Media Advertisements —A Case Study of a Shoe Retail—UAE-Dubai Mall

Digital marketing is considered the preferred method comparing to traditional marketing nowadays [1], but is it true for luxury and expensive products? Since the perception prevails that the concepts “luxury” and “digital” are quite incompatible [2], this paper aims to explore the effectiveness of digital marketing advertisements of luxury retailers, while also exploring consumer’s purchasing intent based on the viewing of such promotions. The overall goal is to provide a model of luxury purchase behaviour through harnessing social media. As a constructionist ontology-based researcher, I believe in multiple versions of reality which can evolve based on my target consumer experiences [3]. My epistemological stance is interpretivism with a subjective approach, inductively interacting with consumers to better understand what this “truth” means to them, incorporating textual material to support the analytical interpretations [4]. It is hoped this paper will inform fashion brands marketers about social media practice to achieve creation of purchase intention and ultimately achieve target sales. The paper is useful to both practitioners and academics in the fields of social media marketing and purchase intention. The research provides some initial insights into consumer perspectives of social media ads and online purchase behaviour.

基于新媒体受众视角的乡村振兴传播力提升研究

在我国新闻传播生态中,主流媒体享有较高的政治话语权,信息集成度与传播的覆盖面也比较高,成为主导与维系媒介生态的“宏观尺规”,是国家意识形态的具体传播话语体现。文章从主流媒体的传播选择、受众对乡村振兴的认知行为以及乡村振兴传播对农民行为影响三个维度出发,力求从传播受众视角探究乡村振兴正面报道的影响因素,最终提出整合联动式传播以及自组织传播等乡村振兴传播力提升的路径。

社交媒体用户倦怠行为生成逻辑与调适机制研究

伴随着社交媒体的使用泛化以及社会压力的激烈碰撞,社交媒体的吸引力逐渐式微,部分用户的新鲜感趋向消散,心理层面上开始浮现疲倦、厌烦或焦虑等情绪样态,行为角度呈现使用次数缩减、沉默潜水、屏蔽免扰甚至逃离退出等消极使用行为,社交媒体倦怠现象已渐成规模。故以社交媒体倦怠为研究对象,探析社交媒体倦怠行为的表现特征,从主体、平台和环境三个维度解读用户倦怠行为的衍生机理,并构建个体自我平衡、平台服务适配以及用户数字素养提升的联动机制,为促使社交媒体用户回归以及提高媒介忠诚度和使用黏性提供可行性思路。

基于异质信息网络表征学习的微博虚假信息甄别研究

[研究目的]社会网络的飞速发展与突发公共卫生事件的时有发生,使得大量的、具有迷惑性的虚假信息混杂社交媒体中,甄别此类信息已成为用户信息素养的重要组成部分。[研究方法]以微博上的异质信息网络为研究对象,综合考虑微博文本的语义特征和用户行为的非语义特征,引入多头注意力机制融合生成集成表示实现虚假信息甄别,并从信息内容、参与用户、用户与信息交互三个维度进行特征挖掘与量化分析。[研究结论]研究表明,基于异质信息网络表征学习的虚假信息甄别方法具有较好的实用性,有助于解构虚假信息的特征,为突发公共卫生健康事件的虚假信息治理及辩症施策提供有益参考。

平台特征对跨社交媒体UGC信息分享行为的影响机理研究

[目的/意义]探究平台特征对跨社交媒体UGC信息分享行为的影响,揭示用户跨社交媒体场景的新特征。[方法/过程]通过刺激—机体—反应(SOR)理论框架构建平台特征对跨社交媒体UGC信息分享行为的中介调节模型,以时间维度和平台维度拼接应用商城数据、百度指数数据、社交媒体数据等,构建多源异构面板数据集作为样本,使用固定效应模型验证相关假设。[结果/结论]平台的声誉和用户服务技术迭代通过感知有用性正向影响跨社交媒体UGC信息分享,而平台的关注度通过感知有用性显著负向影响信息分享行为;平台声誉和用户服务技术迭代对感知有用性和跨社交媒体UGC信息分享之间的关系具有负向调节作用。本文关注跨社交媒体UGC的信息分享行为,为UGC创作者采用跨社交媒体信息投放策略提供参照,为社交媒体维护平台生态提供启示。