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The purpose of this study is to investigate the effects of chronotype on diet and sleep quality in healthy female students.

This study was conducted in 197 healthy female students and were grouped in morning, intermediate and evening types according to the Horne and Ostberg Morningness-Eveningness Questionnaire (MEQ). Assessment included sleep quality using the Pittsburgh Sleep Quality Index (PSQI); physical activity level using the International Physical Activity Questionnaire-Short Form (IPAQ-SF); dietary intake using the 24-h dietary recall; and diet quality using the Healthy Eating Index-2015 (HEI-2015).

In this study, no significant difference was found between chronotypes in terms of general nutritional habits, age, smoking status, anthropometric measurements and physical activity levels. However, evening-type individuals had poor sleep quality (p = 0.040) and having issues about sleep latency (p = 0.049) and daytime dysfunction (p = 0.044), and they had had lower intake of whole fruit (p = 0.002), total fruit (p = 0.024) and higher consumption of refined grains (p < 0.001). Although, among chronotypes, there is no difference in the intake of protein, saturated fat, monounsaturated fatty acids, polyunsaturated fatty acids and dietary fiber, evening-type individuals’ daily energy (p = 0.013), fat (p = 0.021) and carbohydrate intake (p = 0.033) were higher.

In conclusion, further research is required to understand the relationship between chronotype, diet and sleep quality. This study is one of the limited studies that examines sleep quality, daily energy and macronutrient intake and diet quality together for healthy women.

The purpose of this paper is to explore the associations between food literacy, consumer profiling and purchasing behaviour in a sample of Italian consumers.

Participants (N = 194) completed an online survey including personal data, two questionnaires on purchase behaviour and food consumption, the General Trust Scale (GTS), a questionnaire assessing individual chronotype and two scales about food literacy: one investigating nutritional knowledge (short food literacy questionnaire, SFLQ) and the other focussing on procedural skills (self-perceived food literacy scale, SPFL). Associations between food literacy, consumer profiling and purchase behaviour were analysed with linear regression models.

Participants with specific education in nutrition reported higher scores in food literacy. The final score of food literacy was predicted by a greater attention to nutritional content and nutritional properties of products. Women paid more attention to nutritional properties than men, and they obtained higher scores in SFLQ. Evening types obtained lower scores in SFPL compared to intermediate and morning chronotypes. Body mass index (BMI) was negatively correlated to SPFL score, while it was associated with the easy availability of a product, so that obese (BMI ≥ 30) subjects considered the easy availability of a product more important compared to non-obese ones (BMI < 30).

This study investigates the influence of personal and psychometric variables of consumer profiling on food literacy and consequently on purchase behaviour, paving the way for implementing healthier food consumption policies. These findings reinforce the primacy of specific education in building healthy eating habits.

To explore the effects of circadian rhythms on mental performance in the context of the high-stakes CPA exam and to give exam candidates and practitioners insights about ways to better align rigorous mental tasks with the timing of peak mental performance.

Empirical methodology using data on CPA exam candidate characteristics and performance.

We provide evidence consistent with the belief that circadian rhythms affect CPA exam performance. After controlling for other performance factors, we document lower CPA exam scores and pass rates for those exams begun in the early workday hours or in the afternoon, relative to those exams begun in the late morning.

As is typical with empirical methodology, our findings may be due to factors/variables other than those under consideration.

Insights regarding circadian rhythms can potentially be used to better align rigorous mental tasks with the timing of peak mental performance, thereby yielding better performance by the CPA profession.

Among the goals of the CPA profession is the protection of the public. Thus, improved performance by the CPA profession can yield benefits to society at large.

To our knowledge, ours is the first study to explore the possible effect of circadian rhythms on CPA exam performance. Given the high-stakes nature of the exam, we believe our chapter can give exam candidates and practitioners valuable insights about ways to better align rigorous mental tasks with the timing of peak mental performance. This can benefit them both for the CPA exam as well as during their careers.

Consumer behavior has evolved because of technological development. Nowadays, consumers carry out the different stages of the decision-making process by combining multiple devices which has been defined as multi, cross and omnichannel behavior. These behaviors have attracted the attention of academics and become a hot topic in literature. As a result, vast amounts of studies on the subject need to be revised and clarified. Thus, the aim of this chapter is to synthetize the primary academic literature that analyzes multi, cross and omnichannel behavior from the consumer point of view. To do that, first, the main concepts (multi, cross and omnichannel) and their differences are clarified. Second, the major findings of channel mix literature regarding the topics, channel scope and theories are exposed and described. Third, the opportunities and future lines of research are presented. This chapter contributes to the literature by clarifying the conceptualization of multi, cross and omnichannel behaviors; offering a complete picture of the main topics, channel approaches and theories addressed in channel mix literature; and presenting future research opportunities and open research questions in a channel mix context that could serve as a starting point to build further research.

This study is a systematic literature review (SLR) on prior research examining the impact of the nocturnal use of social media platforms on a user's sleep, its dimensions and its perceptually allied problems. This SLR aims to curate, assimilate and critically examine the empirical research in this domain.

Forty-five relevant studies identified from the Scopus and Web of Science (WoS) databases were analyzed to develop a comprehensive research profile, identify gaps in the current knowledge and delineate emergent research topics.

Prior research has narrowly focused on investigating the associations between specific aspects of social media use behavior and sleep dimensions. The findings suggest that previous studies are limited by research design and sampling issues. We highlight the imperative need to expand current research boundaries through a comprehensive framework that elucidates potential issues to be addressed in future research.

The findings have significant implications for clinicians, family members and educators concerning promoting appropriate social media use, especially during sleep latency.

Working on the night shift is a potential source of occupational stress and has been associated with sleep disorders. The purpose of this paper is to investigate the association between shift work and sleep problems among police officers from Buffalo, New York.

Randomly selected officers (n=111) responded to questions on sleep quality and quantity. Shift work data were obtained from daily payroll records from 1994 to the exam date (1999‐2000). Prevalence ratios (PR) were obtained using Poisson regression models that examined associations of shift work with sleep quality and quantity.

Among police officers, night shift work was significantly and independently associated with snoring and decreased sleep duration.

Although the sleep questions were similar to those used in validated sleep questionnaires, a major strength of this study was the availability of daily work history data on all officers for up to five years prior to the current examination.

This paper aims to unfold and emphasise the relevance of sustainability and time as research topics in media and communication research and discusses the relation of both phenomena with a focus on processes of media appropriation and media consumption.

The submission argues theoretically. Firstly, theories on sustainability and media and media and time are presented. Secondly, previous approaches from research on sustainable media use will be discussed. Finally, the authors call for a stronger accentuation of research on digital media, time, and sustainability.

The submission shows that previous research on sustainable media use does sufficiently take individual and social time experience into account. Moreover, research is too much focussed on the individual level. The authors therefore argue for three major conceptual changes in research on digital sustainability: time is a sustainable human resource; a shift of perspective from individual to relations is needed; and consideration of the cultural condition of capitalism is necessary.

This paper includes implications for the future research on digital media, time and sustainability.

According to the authors’ knowledge, this paper is the first one that connects perspectives on time with digital sustainability.

The purpose of this paper is to present a precise comparison between a pre-determined time rules and the evaluation performed with the help of a manual chronometer using data from a line assembly in an automotive industry besieged in the state of Paraná, Brazil. Nowadays, it is possible to verify several tools of measurement of task times, some taking less time and causing less wear of the evaluator than others, but not being in accordance with the real conditions of the workers of a certain industry.

The developed paper has its methodology based on two methods of time analysis, one of them being an adaptation of the MODular Arrangement of Predeterminated Time Standard (MODAPTS) method – called MODAPTS 2. This method is used by the industry in analyzed in this work and the other through the use of simple manual timing, through the digital timer, of the stages developed in a workstation.

The study shows that for each operation analyzed, thus presenting a situation of minimum waste, it becomes possible to judge which reasons exist for the operator during manual timekeeping not to reach the optimum times generated by the system of pre-determined times and movements (PMTSs) questioned.

This study is conducted on an automotive enterprise in a period of confidentiality, which means that only a single workstation is able to be studied. This means that the comparison obtained between the time measurements methods used, and the evaluation of the MODAPTS is carried out with the best possible movements and gestures, disregarding then that the wastes can still be postulated to the whole assembly line.

With the automation in industry, where assemble tasks are usually developed manually, it is believed possible to discard the option of measuring task times in its classic and manual form, using a timer, yet during this process, there will be variables that may not be considered by pre-determined measurements methodologies. The work developed by this paper presents different variables that are not examined by the methods of PMTS, not frequently seen in the literature, as well as the difference that occurs between the measurement of times with stopwatch and the use of PMTS, which, in its original form, disregards the wastes that the operator has in their movements.