Search results

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 develop a holistic model regarding the antecedents and consequences of organizational ambidexterity in the context of small and medium sized enterprises (SMEs), particularly for developing countries such as Turkey. Moreover, this paper also aims to reveal the moderating role of networking between organizational ambidexterity and firm performance.

By studying 105 SMEs engaged in small business and technology development centers (SBTDCs), structural equation modeling through SmartPLS is executed.

The findings show that: discipline and support positively influence the formation and the maintenance of organizational ambidexterity; organizational ambidexterity significantly contributes to firm performance; and the greater the networking the greater the relationship between exploitation capability and firm performance.

To date, there has been no systematic attempt in the extant literature to develop a holistic manner of organizational ambidexterity, with its antecedents and consequences in the context of SMEs in general, in SMEs of a developing country, Turkey in particular. Moreover, the moderating role of networking between organizational ambidexterity and a firm’s performance has never been examined.