• Journal of Practical Engineering Education
• /
• v.16 no.4
• /
• pp.577-585
• /
• 2024

This study analyzed the relationship between GPS-based physical activity patterns and mental health using Kaggle Student Life data. Data were collected over a 10-week period from 48 students at Dartmouth College through Android smartphones and included GPS, dark, and phone lock data, and measures such as the Patient Health Questionnaire-9 (PHQ-9), Loneliness Scale, the Positive and Negative Affect Schedule (PANAS), and Perceived Stress Scale. Using latitude and longitude data obtained from GPS measurements, various physical activity indicators were calculated, including the total distance traveled, average distance traveled, average distance traveled in the morning, average distance traveled in the afternoon, average distance traveled in the evening, and average distance traveled in the middle of the night. Pearson's correlation analysis was performed to explore the relationship between GPS-based physical activity patterns and mental health. The study results indicated a significant negative correlation between the average distance traveled in the afternoon and PHQ-9 scores. Results indicated that the higher the afternoon activity, the lower the depressive symptoms. There was a positive correlation be-tween the PANAS-Pos score and the average distance traveled in the evening, indicating that positive emotions tended to increase as evening activities increased. This finding suggests a relationship between physical activity at specific times and mental health.

• Asian Pacific Journal of Cancer Prevention
• /
• v.16 no.13
• /
• pp.5365-5370
• /
• 2015

Background: Combining risk factors for prostate cancer into a predictive tool may improve the detection of prostate cancer while decreasing the number of benign biopsies. We compare one such tool, age multiplied by prostate volume divided by total serum PSA (PSA-AV) with PSA density and detection of primary malignant circulating prostate cells (CPCs) in a Chilean prostate cancer screening program. The objectives were not only to determine the predictive values of each, but to determine the number of clinically significant cancers that would have been detected or missed. Materials and Methods: A prospective study was conducted of all men undergoing 12 core ultrasound guided prostate biopsy for suspicion of cancer attending the Hospital DIPRECA and Hospital de Carabineros de Chile. Total serum PSA was registered, prostate volumecalculated at the moment of biopsy, and an 8ml blood simple taken immediately before the biopsy procedure. Mononuclear cells were obtained from the blood simple using differential gel centrifugation and CPCs identified using immunocytchemistry with anti-PSA and anti-P504S. Biopsy results were classed as positive or negative for cancer and if positive the Gleason score, number of positive cores and percent infiltration recorded. Results: A total of 664 men participated, of whom 234 (35.2%) had cancer detected. They were older, had higher mean PSA, PSA density and lower PSA-AV. Detection of CPCs had high predictive score, sensitivity, sensibility and positive and negative predictive values, PSA-AV was not significantly different from PSA density in this population. The use of CPC detection avoided more biopsies and missed fewer significant cancers.Conclusions: In this screening population the use of CPC detection predicted the presence of clinically significant prostate cancer better than the other parameters. The high negative predictive value would allow men CPC negative to avoid biopsy but remain in follow up. The formula PSA-AV did not add to the predictive performance using PSA density.

• Korean Journal of Biological Psychiatry
• /
• v.9 no.1
• /
• pp.50-61
• /
• 2002

Objectives:High nailfold plexus visibility can reflect central nervous system defects as an etiologic factor of schizophrenia indirectly. Previous studies suggest that this visibility is particularly related to the negative symptoms of schizophrenia and frontal lobe deficiency. In this study, we examined the relationships between nailfold plexus visibility, and various clinical variables and neuropsychological functions in schizo-phrenic patients. Methods:Forty patients(21males, 19 females) satisfying the DSM-IV criteria for schizophrenia and thirty eight normal controls(20 males, 18 females) were measured for Plexus Visualization Score(PVS) by using the capillary microscopic examination. For the assessment of psychopathology, process-reactivity, premorbid adjustment, and neuropsychological functions, we used Positive and Negative Syndrome Scale(PANSS), Ullmann-Giovannoni Process-Reactive Questionnaire(PRQ), Phillips Premorbid Adjustment Scale(PAS), Korean Wechsler Adult Intelligence Scale(KWIS), Continuous Performance Test(CPT), Wisconsin Card Sort Test (WCST), and Word Fluency Test. We also collected data about clinical variables. Results:PVS was correlated with PANSS positive symptom score and composite score negatively. There were no correlations between PVS and PRQ score, PAS score and neuropsychological variables respectively. Conclusions:This study showed that nailfold plexus visibility was a characteristic feature in some schizophrenic patients, and that higher plexus visibility was associated with the negative symptoms of schizophrenia. There was no association between plexus visibility and neuropsychological functions.

• Journal of the Korean Home Economics Association
• /
• v.35 no.4
• /
• pp.199-210
• /
• 1997

The purpose of this study was to examine whether social support buffers the deleterious effects of strain on life satisfaction of the aged and to provide information for finding out ways of increasing their life satisfaction. The subjects of this study were 252 aged persons living in Kwangju and Joun-nam. The statistics used for data analysis were frequency percentage mean standard deviation reliablity Pearson's correlation multiple regression analysis through the SAS package program. 1) The support score from family was higher than the support from friends and the total point of life satisfaction of the aged was 28.4 which was above the median 24. 2) Social support especially the support from family buffer the negative effect of strain on life satisfaction of the aged. The result indicates that the family remains a supportive system for the aged parents Therefore A program in necessary for aged parents to promote the emotional solidarity between the aged parents and their children.

• Journal of Korean society of Dental Hygiene
• /
• v.13 no.4
• /
• pp.645-650
• /
• 2013

Objectives : The aim of this study is to investigate dental clinic fear and anxiety in high school students. Methods : The subjects were 311 high school students aged 19 years. They completed self-reported questionnaire including general characteristics, dental clinic experiences, dentist or dental hygienist confidence, and dental fear. Data were analyzed using SPSS 18.0. Results : Poor oral health status showed negative attitude towards dental clinic visit. Girl students tended to have more fear than boy students. Muscle tension was the most common experience and was closely related to anesthetic needles and drills. Dental anxiety was caused by lack of confidence to dentists and dental hygienists. Students were more afraid of dentists than dental hygienists. Higher score of dental anxiety seemed to be associated with infrequent visit to dental clinic. Conclusions : Frequent regular dental checkup may reduce dental fear and anxiety. Dental clinic staff should try to minimize dental anxiety in performing treatment.

• Food Quality and Culture
• /
• v.2 no.2
• /
• pp.80-84
• /
• 2008

In this study, sixth grade school children in the Guri area were surveyed via questionnaire regarding their sociodemographic characteristics, snacking patterns, and intakes of different food groups and sugared snacks. Students with employed mothers had more frequent snacking events and were more dependent on store-purchased snacks compared to those having an unemployed mother. A high consumption of snack sugar was associated with a higher dietary diversity score. There was a positive relationship between snack sugar intake and the intakes of meat and dairy products and foods in the oil and nut group, respectively. A high snack sugar intake had a negative effect on fruit intake. Specific nutrient intake data will be required before conclusions can be made on whether nutrient imbalances are a concern in elementary school children having sweet snacks. Yet, the current data indicate that an increased snack sugar intake can decrease fruit intake, which could result in certain nutrient deficits. Specific dietary guidance may be necessary to address the snacking habits of elementary school children.

• Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
• /
• v.25 no.1
• /
• pp.18-29
• /
• 2011

Light emitting diode(LED) technology has been increasingly developed and larger color gamut by LED illuminations can be reproduced; therefore more efficient LED lighting design can be accomplished under a consideration of color emotion. Fifty-two LED colors which are uniformly distributed on the uniform chromaticity space are evaluated in terms of fatigueness and preference and their relation to three color-appearance attributes(lightness, chroma and hue) are investigated. As a result, 23 human observers likely to prefer and feel comfortable, when lightness of a given LED color stimulus increases as well as its chroma decreases. The highest fatigueness score is observed in red color series and the most preferred LED color is found in green color series. In addition, fatigueness and preference show a strong negative linear relation and their Pearson correlation is higher than -0.8.

• Korean Journal of Child Studies
• /
• v.23 no.4
• /
• pp.185-197
• /
• 2002

The Korean Wechsler Preschool and Primary Scale of Intelligence (K-WPPSI) was administered to 27 autistic children, 3 to 7 years of age. The average IQ was 51.96. There were negative correlations of verbal and performance IQs with chronological age. These children generally performed very poorly on each subtest. Paradoxically, the verbal subtest scores of these autistic children were higher than their performance scores; thus, the typical verbal inferionity of autistic children was not evident in this study. These results suggest that autistic children's K-WPPSI performance needs to be interpreted with care; additional raw score analysis was recommended. Administrative revision of the K-WPPSI will be necessary to measure detailed intellectual differences among autistic children.

• Journal of the Korean Institute of Landscape Architecture
• /
• v.22 no.1
• /
• pp.17-26
• /
• 1994

Based on the data gathered by on-site survey at six universities, this study examines the relationships between the level of knowledge about regulations and depreciative behavioral intentions in National Park management. 558 students are participated in the survey. Among those agreeing to take part in the survey, 54.5% are males and 45.5% are females. Generally most students are very interested in the environmental problem in national parks. The mean of knowledge about regulations in national parks score 57, and females have higher mean scores than male student. In all four dilemmas, significant negative correlations are observed between the likelyhood of a prosocial action and the likelyhood of an antisocial action. In other words, the more likely the intention to obey a regulation in any dilemma situlation, the less likely the intention to disobey a regulation, and vice-versa.

• Korean Journal of Community Nutrition
• /
• v.17 no.5
• /
• pp.579-588
• /
• 2012

This study was conducted to investigate the association among demographic characteristics, lifestyle, food habits, and stress status of 437 males and females aged over 25 years in Chungnam. Overall, the stress status of the subjects was high showing an average of 103 points out of 156 points based on the something scale. Results of the study revealed that marital status, exercise status, and health status had significant relationships with food habits and stress scores. The subjects who were married, had a higher frequency of exercise, and were healthier, had a significantly higher food habit score but a significantly lower stress score compared with their counterparts. Also, food habit scores had a significantly negative relationship with stress scores. Thus, this research showed possible links among healthy food habits, desirable lifestyle, and low stress status. In other words, people who experience a high level of stress may be more likely to have unhealthy food habits, resulting in a poor healthy conditions. These results show that appropriate food habits and adequate dietary management are deemed necessary for people with a high degree of stress. Further in-depth studies are needed to clarify a direct relationship between stress and food habits and to determine the proper diet that may help relieve stress.