Recently, interindividual differences in tolerance to shift work have become an increasing interest in chronobiological shift work studies.1) A number of factors have been investigated2) such as sex, age, general health status, quality and quantity of sleep, internal desynchronization between body temperature and sleep-wake cycle, morningness-eveningness, introversion-extroversion, job satisfic...

We investigated a relation between occupational maladjustment and personality traits of 669 employees (354 males and 315 females) in 4 stores randomly selected from 35 stores of a distribution business company Firm I. The subjects were classified into 3 adjustment groups; "poor," "average" and "good" as a result of their self-evaluations for occupational maladjustment in each item on the check ...

The Francis Psychological Type Scales were developed during the early 2000s to operationalize four components of psychological type theory within survey-style research, proposing measures introversion and extraversion, sensing intuition, feeling thinking, judging perceiving. Drawing on datasets clergy churchgoers (N = 291, 879, 1,296, 1,525), present study tests factor structure these establish...

OBJECTIVES To assess the relationships between the risk factors and the incidence of nonfatal occupational injury of coal mine workers of Shanxi Province. METHODS A cross-sectional study was conducted from July 2013 to December 2013, and 4319 workers were recruited from more than 200,000 coal mine employees who are exposed to continuous potential risk of occupational injuries by using a two-s...

BACKGROUND The hypothesis that traumatic experiences in early childhood impact personality formation and psychopathology is well known in psychology and psychiatry, but this is difficult to verify statistically in methodological terms. The aim of this study, conducted with politically persecuted Poles, was to establish the influence of the time when trauma is experienced on the development of p...

OBJECTIVE Sex steroids affect human behavior. The aim of the present study was to determine the associations, if any, between the circulating levels of gonadal and adrenal sex steroids in the mid luteal phase (21st day of a normal menstrual cycle, MC) of young professional women and psychometric parameters as assessed by the Minnesota Multiphasic Personality Inventory (MMPI). RESULTS Our resu...

Although social networking sites (SNSs) have attracted increased attention andmembers in recent years, there has been little research on it: particularly on how a users’ extroversion or introversion can affect their intention to pay for these services and what other factors might influence them. We therefore proposed and tested a model that measured the users’ value and satisfaction perspective...

OBJECTIVES This study investigated whether anxiety characteristics independently predicted the onset of myocardial infarction (MI) over an average of 12.4 years and whether this relationship was independent of other psychologic variables and risk factors. BACKGROUND Although several psychosocial factors have been associated with risk for MI, anxiety has not been examined extensively. Earlier ...