This study evaluated a community-based and social marketing healthy corner store program (FIT store) to improve the affordability and availability of healthy foods in low-income, urban, and ethnically diverse neighborhoods in Michigan. The Nutrition Environment Measures Survey in Stores data were analyzed for the FIT (N = 4) stores. Two cross-sectional surveys were conducted among the FIT store customers before (N = 401) and after (N = 318) the intervention. Three FIT stores improved their total Nutrition Environment Measures Survey in Stores availability score from before to after the intervention. A significantly higher level of FIT awareness and monthly bean and nut consumption was reported in the postintervention.

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Objective: To evaluate the short-term outcome of the social marketing approach used in Project FIT, we developed a school-and community-based programme for promoting healthful eating and physical activity in kindergarten to 5th-grade children and their parents. Design: A 2-year quasi-experiment for children and two cross-sectional surveys for parents. Setting: We included low-income, urban and ethnically diverse elementary schools and neighbourhoods in Grand Rapids, Michigan, USA. Method: Students in 3rd, 4th and 5th grades were surveyed in four intervention schools (four time points, N with at least one time point measurement = 664) and two control schools (N = 195). Parents of intervention students were surveyed at baseline (N = 286) and follow-up (N = 215). Key dependent variables included self-reported healthful eating and physical activity. Key independent variables included awareness, knowledge, motivation and attitudes towards Project FIT. Analysis: We analysed generalised linear mixed models and generalised estimation equation (GEE) models for the student surveys and mean difference tests and logistic regressions for the parent surveys. Results: The proportion of students who were aware of Project FIT increased over time. GEE models showed that selected key dependent variables were significantly associated with self-reported healthful eating and physical activity. Parents were more aware of Project FIT at follow-up compared to the baseline survey, and their attitudes were significantly associated with increased healthful eating (vegetables, fruits and whole grains). Conclusion: The social marketing approach utilised in Project FIT contributed to increasing awareness and achieving behavioural goals of healthful eating and physical activity.

Recommender systems are a vital part of the way today's information society deals with information overload. Recommender systems help e‐commerce retailers to choose items to display based on customers' preferences, help users personalize search, and help streaming services create customized playlists. This entry describes multiple kinds of recommender systems and how they work. It also explains their historical and intellectual context, shows how they might affect users, and discusses current challenges.

Facebook users share information with others by creating posts and specifying who should be able to see each post. Once a user creates a post, those who see it have the ability to copy and re-share the information. But, if the reader has a different understanding of the information in the post than the creator intended, he or she may use the information in ways that are contrary to the intentions of the original creator. This study examined whether post creators (Producers) and readers (Consumers) who are Facebook Friends had similar levels of privacy concern regarding how others might use the information in specific posts, and how their privacy concern about the post varied by whether the imagined audience consisted of Friends, Friends of Friends, or the general Public. The results showed that both Producers and Consumers had similar levels of privacy concern about a post shared with an imagined audience of Friends versus Friends of Friends. However, Consumers believed posts were more private than the Producers themselves did, and showed more privacy concern. This shows that post Consumers care about Producers' privacy, perceive that they are co-owners of the information, and engage in boundary management with Producers.

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