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This study aims to examine consumers’ preferences among four calorie-reducing approaches – resizing, reformulation, substitution and elimination – and to understand what motivates consumers to order low-calorie food using the theory of planned behavior (TPB) as a model.

A conceptual model was developed based on the TPB with an additional construct of food choice motives. A total of 467 responses were collected. Descriptive statistics, multiple regression and ANOVA were used in the data analysis.

Consumers have a clear preference for substitution and elimination. The pattern that ingredients with higher calories were modified at a higher priority indicated that consumers might improve food decisions based on calorie information.

Restaurants should allow substitution or elimination of certain ingredients from menu items. Including more low-calorie sides will cost restaurants less than changing the main dish. A menu item on an entrée form is more amenable to modification for decreased calorie content as consumers have high taste expectations for popular traditional foods (e.g. burgers and pizza).

This is the first study to investigate consumers’ preferences among the four popular calorie-reducing approaches. A novel “Build Your Own Meal” approach was used in the questionnaire to allow the participants to choose from more than 150 ingredients, which compensated for personal preferences, thus mitigating possible limitations associated with studies of this kind, and was a good indicator of the participants’ actual ordering behavior.

This study aims to compare customers’ perceived importance of various post-COVID-19 recovery strategies (i.e. sanitary practices, discounts, menu modification and marketing strategies) adopted by independent full-service restaurants (casual dining versus upscale/fine dining) using the salience theory. It also assesses the associations between customers’ perceptions and their restaurant spending patterns.

An online survey was administered to assess 657 US adult participants’ restaurant spending behaviors at different stages of the COVID-19 pandemic using recall questions. Higher-spending versus lower-spending participants’ perceived importance of restaurant recovery strategies were compared in the casual dining versus upscale/fine dining contexts.

Amid the COVID-19 pandemic, sanitary practices were the most important factor in participants’ restaurant choices, and it was more important for independent casual dining restaurants than for upscale/fine dining restaurants. No significant difference was found in participants’ perceived importance of sanitary practices across different geographic regions. Higher-spending diners (HSD) perceived almost every restaurant recovery strategy as important. Lower-spending diners (LSD) only considered sanitary practices as important.

This study identified important strategies that restaurant operators and public health officials can adopt to help full-service restaurants recover from pandemic losses.

This study differs from previous consumer choice studies; in that it compared HSD with LSD regarding their perceived importance of various restaurant recovery strategies. This study also provides new insights for understanding the salience theory of choice under the impact of COVID-19.

This article aims to predict the rapid track geometry change in the short term with a higher detection frequency, and realize the monitoring and maintenance of the railway state.

Firstly, the ABA data needs to be filtered to remove the DC component to reduce the drift due to integration. Secondly, the quadratic integration in frequency domain for concern components of the vertical and lateral ABA needs to be done. Thirdly, the displacement in lateral of the wheelset to rail needs to be calculated. Then the track alignment irregularity needs to be calculated by the integration of lateral ABA and the lateral displacement of the wheelset to rail.

By comparing with a commercial track geometry measurement system, the high-speed railway application results in different conditions, after removal of the influence of LDWR, identified that the proposed method can produce a satisfactory result.

This article helps realize detection of track irregularity on operating vehicle, reduce equipment production, installation and maintenance costs and improve detection density.

The aim of this paper is to argue for the values of familial caring and relationships in addition to the provision of social media technology during the COVID-19 pandemic in Hong Kong.

The discussion of this paper has adopted an inter-disciplinary approach by integrating health care system and psychological analysis, based on cultural philosophical argument through the hermeneutic approach of classical texts and critical analysis.

The COVID-19 pandemic has exposed the dilemma between the public health measures for COVID-19 and sustaining elderly social psychological health through familial connection. From a Confucian perspective, the practice of filial piety (xiao, 孝), which demands taking care of parents, is essential for one’s moral formation, and for one’s becoming a virtuous (ren, 仁) person. The necessity of taking care of elderly parents by adult children is not something that can be explained in terms of consequentialism. Indeed, the rising trend of instrumental rationality seems to weaken rather than strengthen the sense of filial obligation. In the face of the COVID-19 pandemic which tends to separate connections between family members, the author argues that we should emphasize the values of familial caring and relationship because it enhances the elderly’s characteristic of resilience.

This paper shows that while social media technology has mitigated the negative effect of social distancing, such online relationships should never replace the bodily connections between the elderly and their family members from a Confucian perspective.