1.Ectomycorrhizal Fungal Communities of Red Pine (Pinus densiflora) Seedlings in Disturbed Sites and Undisturbed Old Forest Sites.
Mycobiology 2013;41(2):77-81
This study aimed to investigate differences in ectomycorrhizal (ECM) fungal communities between disturbed sites and undisturbed old forest sites. ECM root tips of Pinus densiflora were collected from 4 sites disturbed by human activities and 3 undisturbed old forest sites adjacent to the disturbed sites. Results in this study showed that the number of ECM root tips, species diversity, and number of species were significantly higher in the disturbed sites than in the undisturbed sites, suggesting that the ECM fungal community structure was affected by the degree of disturbance.
Human Activities
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Meristem
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Pinus
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Seedlings
3.Safety and Health Perceptions in Work-related Transport Activities in Ghanaian Industries.
Charles ATOMBO ; Chaozhong WU ; Emmanuel O TETTEHFIO ; Godwin Y NYAMUAME ; Aaron A AGBO
Safety and Health at Work 2017;8(2):175-182
BACKGROUND: With the recent rapid industrialization, occupational safety and health (OSH) has become an important issue in all industrial and human activities. However, incidents of injuries and fatality rates in the Ghanaian industry sector continue to increase. Despite this increase, there is no evidence regarding the element of OSH management in transport activities in Ghanaian industries. Thus, this study aims to examine the perceptions regarding the importance of safety and health in work-related transport activities in Ghanaian industries. METHODS: A survey data collection technique was used to gather information on best safety practices over a 5-month period. We randomly selected 298 respondents from industries to answer structured questionnaires. The respondents included drivers, transport managers, and safety engineers. Standard multiple regression model and Pearson product–movement correlation were used to performed the analysis. RESULTS: The result shows that for interventions to improve safety and health, concentration has been on drivers’ safety practice with less attention to safe driving environments and vehicle usage. Additionally, the respondents are aware of the importance of OSH in transport activities, but the level of integration does not measure up to the standard to reduce operational accidents and injuries. Finally, strong commitment to changing unsafe practices at all levels of operations appears to be the effective way to improve safety situations. CONCLUSION: OSH culture is not fully complied in industries transport activities. This study, therefore, supports the use of safety seminars and training sessions for industry workers responsible for transport operations for better integration of safety standards.
Data Collection
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Human Activities
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Occupational Health
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Safety Management
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Surveys and Questionnaires
4.Human activity recognition based on the inertial information and convolutional neural network.
Xinke LI ; Xinyu LIU ; Yongming LI ; Hailin CAO ; Yihang CHEN ; Yicheng LIN ; Xinxin HUANG
Journal of Biomedical Engineering 2020;37(4):596-601
With the rapid improvement of the perception and computing capacity of mobile devices such as smart phones, human activity recognition using mobile devices as the carrier has been a new research hot-spot. The inertial information collected by the acceleration sensor in the smart mobile device is used for human activity recognition. Compared with the common computer vision recognition, it has the following advantages: convenience, low cost, and better reflection of the essence of human motion. Based on the WISDM data set collected by smart phones, the inertial navigation information and the deep learning algorithm-convolutional neural network (CNN) were adopted to build a human activity recognition model in this paper. The K nearest neighbor algorithm (KNN) and the random forest algorithm were compared with the CNN network in the recognition accuracy to evaluate the performance of the CNN network. The classification accuracy of CNN model reached 92.73%, which was much higher than KNN and random forest. Experimental results show that the CNN algorithm model can achieve more accurate human activity recognition and has broad application prospects in predicting and promoting human health.
Algorithms
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Cluster Analysis
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Human Activities
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Humans
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Motion
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Neural Networks, Computer
5.Developing a Basic Scale for Workers' Psychological Burden from the Perspective of Occupational Safety and Health.
Kyung Woo KIM ; Ho Chan LIM ; Jae Hee PARK ; Sang Gyu PARK ; Ye Jin PARK ; Hm Hak CHO
Safety and Health at Work 2018;9(2):224-231
BACKGROUND: Organizations are pursing complex and diverse aims to generate higher profits. Many workers experience high work intensity such as workload and work pressure in this organizational environment. Especially, psychological burden is a commonly used term in workplace of Republic of Korea. This study focused on defining the psychological burden from the perspective of occupational safety and health and tried to develop a scale for psychological burden. METHODS: The 48 preliminary questionnaire items for psychological burden were prepared by a focus group interview with 16 workers through the Copenhagen Psychosocial Questionnaire II and Mindful Awareness Attention Scale. The preliminary items were surveyed with 572 workers, and exploratory factor analysis, confirmatory factor analysis, and correlation analysis were conducted for a new scale. RESULTS: As a result of the exploratory factor analysis, five factors were extracted: organizational activity, human error, safety and health workload, work attitude, and negative self-management. These factors had significant correlations and reliability, and the stability of the model for validity was confirmed using confirmatory factor analysis. CONCLUSION: The developed scale for psychological burden can measure workers' psychological burden in relation to safety and health. Despite some limitations, this study has applicability in the workplace, given the relatively small-sized questionnaire.
Focus Groups
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Human Activities
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Occupational Health*
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Republic of Korea
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Self Care
6.Sleep and Temperature.
Sleep Medicine and Psychophysiology 2016;23(2):47-52
Changes in core body temperature are closely related to initiation and maintenance of sleep, and are influenced by various factors such as air temperature, room temperature, clothing, human activities, and medications. These factors are closely related to sleep fragments, insomnia and other sleep disorders. Understanding the effect of the temperature related to human surroundings on the core body temperature and sleep, will be useful for understanding the physiology of sleep and to treat sleep disorders.
Body Temperature
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Circadian Rhythm
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Clothing
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Human Activities
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Humans
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Physiology
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Sleep Disorders
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Sleep Initiation and Maintenance Disorders
7.A Checklist of the Basidiomycetous Macrofungi and a Record of Five New Species from Mt. Oseo in Korea.
Won Dong LEE ; Hyun LEE ; Jonathan J FONG ; Seung Yoon OH ; Myung Soo PARK ; Ying QUAN ; Paul E JUNG ; Young Woon LIM
Mycobiology 2014;42(2):132-139
Basidiomycetous macrofungi play important roles in maintaining forest ecosystems via carbon cycling and the mobilization of nitrogen and phosphorus. To understand the impact of human activity on macrofungi, an ongoing project at the Korea National Arboretum is focused on surveying the macrofungi in unexploited areas. Mt. Oseo was targeted in this survey because the number of visitors to this destination has been steadily increasing, and management and conservation plans for this destination are urgently required. Through 5 field surveys of Mt. Oseo from April to October 2012, 116 specimens of basidiomycetous macrofungi were collected and classified. The specimens were identified to the species level by analyzing their morphological characteristics and their DNA sequence data. A total of 80 species belonging to 57 genera and 25 families were identified. To the best of our knowledge, this is the first study to identify five of these species-Artomyces microsporus, Hymenopellis raphanipes, Pholiota abietis, Phylloporus brunneiceps, and Sirobasidium magnum-in Korea.
Base Sequence
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Carbon
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Checklist*
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Ecosystem
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Human Activities
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Humans
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Korea
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Nitrogen
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Pholiota
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Phosphorus
8.Lifelog Agent for Human Activity Pattern Analysis on Health Avatar Platform.
Yongjin KWON ; Kyuchang KANG ; Changseok BAE ; Hee Joon CHUNG ; Ju Han KIM
Healthcare Informatics Research 2014;20(1):69-75
OBJECTIVES: To provide accurate personalized medical care, it is necessary to gather individual-related data or contextual information regarding the target person. Nowadays a large number of people possess smartphones, which enables sensors in the smartphones to be used for lifelogging. The objective of the study is to analyze human activity pattern by using lifelog agent cooperating with the Health Avatar platform. METHODS: Using the lifelog measured by accelerometer and gyroscope in a smartphone at a 50 Hz rate, the agent reveals how long the user walks, runs, sits, stands, and lies down, and this information is summarized by hours. The summaries are sent to the Health Avatar platform and finally are written in the Continuity of Care Record (CCR) format. RESULTS: The lifelog agent is successfully operated with the Health Avatar platform. In addition, we implement an application that displays the user's activity patterns in a graph and calculates the metabolic equivalent of task based calorie burned by hour or by day using the lifelog of the CCR form to show that the lifelog can be used as medical records. CONCLUSIONS: The agent shows how lifelogs are analyzed and summarized to help activity recognition. We believe that our agent demonstrates a way of incorporating lifelogs into medical care and a way of exploiting lifelogs in a medical format.
4-Acetamido-4'-isothiocyanatostilbene-2,2'-disulfonic Acid
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Activities of Daily Living
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Burns
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Continuity of Patient Care
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Health Behavior
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Human Activities*
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Humans*
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Medical Records
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Metabolic Equivalent
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Pattern Recognition, Automated
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Smartphone
9.Fatigue in People with Cancer: Concept Analysis.
Journal of Korean Academy of Nursing 1999;29(4):755-765
Most people experience fatigue at some point in their lives, and they say the word 'fatigue' in their ordinary conversational speech. The ordinary word is used as a military or engineering term and has been studied in various different disciplines such as ergonomics, physiology, psychology, medicine, and nursing. In spite of its widespread uses, however, fatigue has not been well defined. The terms of fatigue is thus often used with different meanings and is applied in diverse contests that had led to a confusion of ideas. In people with cancer, fatigue is reported as a major distress. Despite the importance of fatigue in cancer patients, the phenomena of fatigue is poorly understood. Therefore, the purpose of the present study is to analyze the concept of fatigue in people with cancer. The process for the concept analysis was guided by Walker and Avant's conceptual analysis methodology. The identified attributes of fatigue in the present study were subjective feeling, lack of energy, sustenance, and multi-dimensions. The antecedents were cancer treatment and economic status. The consequences were decreased daily, vocational, leisure, and social activities, uncertainty, and difficulties in adjustment. Symptoms(pain, anorexia, and insomnia) and emotional disturbance were not clear whether they are antecedents or consequences. However, they are related with cancer related fatigue. Even though still in the beginning stage, instruments measuring cancer related fatigue have been developed by some nursing investigators.
Affective Symptoms
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Anorexia
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Fatigue*
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Human Engineering
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Humans
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Leisure Activities
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Military Personnel
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Nursing
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Physiology
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Psychology
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Research Personnel
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Uncertainty
10.Causes for change in producing areas of geo-authentic herbs.
Fei LIANG ; Jian LI ; Wei ZHANG ; Rui-Xian ZHANG
China Journal of Chinese Materia Medica 2013;38(10):1649-1651
Geo-authentic herbs lay stress on their producing areas. The producing areas of most geo-authentic herbs have never changed since the ancient times. However, many other geo-authentic herbs have experienced significant changes in the long history. There are two main causes for the change in producing areas of herbs-change of natural environment and development of human society, which are restricted by each other and play a great role throughout the development process of geo-authentic herbs.
Conservation of Natural Resources
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Drugs, Chinese Herbal
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analysis
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Ecosystem
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Geography
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Human Activities
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Humans
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Medicine, Chinese Traditional
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Plants, Medicinal
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chemistry
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Quality Control