Are Stock Returns Different over Weekends? A Jump Diffusion Analysis of the " Weekend Effect " T he distribution of returns on common stocks is, arguably, one of the most widely studied financial market characteristics. Among the questions addressed by these studies are the following: Is the return on common stocks normally distributed, as much finance theory assumes? How many stocks should be ...

OBJECTIVE This study evaluated the association between sleep patterns and the risk of being overweight/obese in Chinese children. METHODS A total of 3,086 children (1,608 boys and 1,478 girls) between 7 and 14 years of age and studying in primary schools were recruited as eligible study participants in this study. We collected the information about children regarding sleep patterns, body heig...

With the increasing trend of residents and tourists sharing urban spaces, boundary between leisure spaces tourism is gradually being blurred. However, few studies have quantified spatiotemporal correlation patterns residents’ activities tourists’ activities. To fill this gap, paper takes Nanjing as an example to study temporal spatial based on mobile phone signal data. First, through kernel den...

Abstract Between March and April 2020, Cyprus Greece health authorities enforced three escalated levels of public interventions to control the COVID-19 pandemic. We quantified compliance 108 asthmatic schoolchildren (53 from Cyprus, 55 Greece, mean age 9.7 years) both countries intervention levels, using wearable sensors continuously track personal location physical activity. Changes in ‘fracti...

Understanding the physical activity patterns of youth is an essential step in preparing programming and interventions needed to change behavior. To date, little is known about the intricacies of youth physical activity across various physical activity segments (i.e. in school, out of school, recess, classroom physical activity, physical education, weekends, etc.). Therefore, the purpose of the ...

The increase in demand for natural touristic features such as sandy beaches, colourful corals and warm weather at island destinations has led to the mushrooming of beach resorts. Beach resorts equip with places stay tourists while letting them enjoy islands' features. accommodate both international domestic an ever increasing trend. Nevertheless, construction development these large was on ad h...

This study was conducted to determine the situation in Türkiye terms of fathers looking after their children public settings. For this purpose, natural observations parents who came playgrounds, movie theaters, stores, toy and restaurants with aged 3–5 years were made study. Observational data collected from 522 shopping mall Ankara, capital Türkiye. The found that mothers looke...

We studied the effect of nearest pattern interaction on a global pattern formation in a two-dimensional space, where patterns are to grow initially from a noise in the presence of a periodic supply of energy. Although our approach is general, we found that this study is relevant in particular to the pattern formation on a periodically vibrated granular layer, as it gives a unified perspective o...

Abstract Introduction Poor sleep quality is common in college student. Unhealthy habits (e.g., delayed bedtime, inconsistent routine between schooldays and weekends) could lead to poor quality, which associated with academic performance, mental physical health. However, little known about the patterns of terms timing consistency their impact on nighttime students. Methods This was a cross-secti...

In a large nationwide study in Spain, BARBA et al. [1] recently reported that patients admitted for treatment of an acute exacerbation of chronic obstructive pulmonary disease (AECOPD) over a weekend showed poorer in-hospital survival compared to those admitted on weekdays. The data suggest that this effect is independent of confounders such as age, sex, comorbidity and respiratory failure. The...